From fa3959f457109cc7d082b86ea6daae927982815b Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Thu, 24 Apr 2008 01:27:02 +0200 Subject: mv643xx_eth: get rid of static variables, allow multiple instances Move mv643xx_eth's static state (ethernet register block base address and MII management interface spinlock) into a struct hanging off the shared platform device. This is necessary to support chips that contain multiple mv643xx_eth silicon blocks. Signed-off-by: Lennert Buytenhek Acked-by: Nicolas Pitre Signed-off-by: Dale Farnsworth --- drivers/net/mv643xx_eth.c | 62 ++++++++++++++++++++++++++++++++++------------- 1 file changed, 45 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index 381b36e5f64..eebf0d288e3 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -507,7 +507,15 @@ struct mv643xx_mib_counters { u32 late_collision; }; +struct mv643xx_shared_private { + void __iomem *eth_base; + + /* used to protect SMI_REG, which is shared across ports */ + spinlock_t phy_lock; +}; + struct mv643xx_private { + struct mv643xx_shared_private *shared; int port_num; /* User Ethernet port number */ u32 rx_sram_addr; /* Base address of rx sram area */ @@ -614,19 +622,14 @@ static const struct ethtool_ops mv643xx_ethtool_ops; static char mv643xx_driver_name[] = "mv643xx_eth"; static char mv643xx_driver_version[] = "1.0"; -static void __iomem *mv643xx_eth_base; - -/* used to protect SMI_REG, which is shared across ports */ -static DEFINE_SPINLOCK(mv643xx_eth_phy_lock); - static inline u32 rdl(struct mv643xx_private *mp, int offset) { - return readl(mv643xx_eth_base + offset); + return readl(mp->shared->eth_base + offset); } static inline void wrl(struct mv643xx_private *mp, int offset, u32 data) { - writel(data, mv643xx_eth_base + offset); + writel(data, mp->shared->eth_base + offset); } /* @@ -1827,6 +1830,11 @@ static int mv643xx_eth_probe(struct platform_device *pdev) return -ENODEV; } + if (pd->shared == NULL) { + printk(KERN_ERR "No mv643xx_eth_platform_data->shared\n"); + return -ENODEV; + } + dev = alloc_etherdev(sizeof(struct mv643xx_private)); if (!dev) return -ENOMEM; @@ -1877,6 +1885,7 @@ static int mv643xx_eth_probe(struct platform_device *pdev) spin_lock_init(&mp->lock); + mp->shared = platform_get_drvdata(pd->shared); port_num = mp->port_num = pd->port_number; /* set default config values */ @@ -1986,27 +1995,46 @@ static int mv643xx_eth_remove(struct platform_device *pdev) static int mv643xx_eth_shared_probe(struct platform_device *pdev) { static int mv643xx_version_printed = 0; + struct mv643xx_shared_private *msp; struct resource *res; + int ret; if (!mv643xx_version_printed++) printk(KERN_NOTICE "MV-643xx 10/100/1000 Ethernet Driver\n"); + ret = -EINVAL; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res == NULL) - return -ENODEV; + goto out; - mv643xx_eth_base = ioremap(res->start, res->end - res->start + 1); - if (mv643xx_eth_base == NULL) - return -ENOMEM; + ret = -ENOMEM; + msp = kmalloc(sizeof(*msp), GFP_KERNEL); + if (msp == NULL) + goto out; + memset(msp, 0, sizeof(*msp)); + + msp->eth_base = ioremap(res->start, res->end - res->start + 1); + if (msp->eth_base == NULL) + goto out_free; + + spin_lock_init(&msp->phy_lock); + + platform_set_drvdata(pdev, msp); return 0; +out_free: + kfree(msp); +out: + return ret; } static int mv643xx_eth_shared_remove(struct platform_device *pdev) { - iounmap(mv643xx_eth_base); - mv643xx_eth_base = NULL; + struct mv643xx_shared_private *msp = platform_get_drvdata(pdev); + + iounmap(msp->eth_base); + kfree(msp); return 0; } @@ -2911,7 +2939,7 @@ static void eth_port_read_smi_reg(struct mv643xx_private *mp, int i; /* the SMI register is a shared resource */ - spin_lock_irqsave(&mv643xx_eth_phy_lock, flags); + spin_lock_irqsave(&mp->shared->phy_lock, flags); /* wait for the SMI register to become available */ for (i = 0; rdl(mp, SMI_REG) & ETH_SMI_BUSY; i++) { @@ -2936,7 +2964,7 @@ static void eth_port_read_smi_reg(struct mv643xx_private *mp, *value = rdl(mp, SMI_REG) & 0xffff; out: - spin_unlock_irqrestore(&mv643xx_eth_phy_lock, flags); + spin_unlock_irqrestore(&mp->shared->phy_lock, flags); } /* @@ -2969,7 +2997,7 @@ static void eth_port_write_smi_reg(struct mv643xx_private *mp, phy_addr = ethernet_phy_get(mp); /* the SMI register is a shared resource */ - spin_lock_irqsave(&mv643xx_eth_phy_lock, flags); + spin_lock_irqsave(&mp->shared->phy_lock, flags); /* wait for the SMI register to become available */ for (i = 0; rdl(mp, SMI_REG) & ETH_SMI_BUSY; i++) { @@ -2983,7 +3011,7 @@ static void eth_port_write_smi_reg(struct mv643xx_private *mp, wrl(mp, SMI_REG, (phy_addr << 16) | (phy_reg << 21) | ETH_SMI_OPCODE_WRITE | (value & 0xffff)); out: - spin_unlock_irqrestore(&mv643xx_eth_phy_lock, flags); + spin_unlock_irqrestore(&mp->shared->phy_lock, flags); } /* -- cgit v1.2.3-70-g09d2 From f2ce825d2a89b30af14fa577298fecaab7bc9504 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Thu, 24 Apr 2008 01:27:17 +0200 Subject: mv643xx_eth: mbus decode window support Make it possible to pass mbus_dram_target_info to the mv643xx_eth driver via the platform data, and make the mv643xx_eth driver program the window registers based on this data if it is passed in. Signed-off-by: Lennert Buytenhek Reviewed-by: Tzachi Perelstein Acked-by: Russell King Signed-off-by: Dale Farnsworth --- drivers/net/mv643xx_eth.c | 51 +++++++++++++++++++++++++++++++++++++++++++++ include/linux/mv643xx_eth.h | 6 ++++++ 2 files changed, 57 insertions(+) (limited to 'drivers') diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index eebf0d288e3..aabf1c60946 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -91,6 +91,11 @@ */ #define PHY_ADDR_REG 0x0000 #define SMI_REG 0x0004 +#define WINDOW_BASE(i) (0x0200 + ((i) << 3)) +#define WINDOW_SIZE(i) (0x0204 + ((i) << 3)) +#define WINDOW_REMAP_HIGH(i) (0x0280 + ((i) << 2)) +#define WINDOW_BAR_ENABLE 0x0290 +#define WINDOW_PROTECT(i) (0x0294 + ((i) << 4)) /* * Per-port registers. @@ -512,6 +517,8 @@ struct mv643xx_shared_private { /* used to protect SMI_REG, which is shared across ports */ spinlock_t phy_lock; + + u32 win_protect; }; struct mv643xx_private { @@ -1888,6 +1895,9 @@ static int mv643xx_eth_probe(struct platform_device *pdev) mp->shared = platform_get_drvdata(pd->shared); port_num = mp->port_num = pd->port_number; + if (mp->shared->win_protect) + wrl(mp, WINDOW_PROTECT(port_num), mp->shared->win_protect); + /* set default config values */ eth_port_uc_addr_get(mp, dev->dev_addr); mp->rx_ring_size = PORT_DEFAULT_RECEIVE_QUEUE_SIZE; @@ -1992,9 +2002,44 @@ static int mv643xx_eth_remove(struct platform_device *pdev) return 0; } +static void mv643xx_eth_conf_mbus_windows(struct mv643xx_shared_private *msp, + struct mbus_dram_target_info *dram) +{ + void __iomem *base = msp->eth_base; + u32 win_enable; + u32 win_protect; + int i; + + for (i = 0; i < 6; i++) { + writel(0, base + WINDOW_BASE(i)); + writel(0, base + WINDOW_SIZE(i)); + if (i < 4) + writel(0, base + WINDOW_REMAP_HIGH(i)); + } + + win_enable = 0x3f; + win_protect = 0; + + for (i = 0; i < dram->num_cs; i++) { + struct mbus_dram_window *cs = dram->cs + i; + + writel((cs->base & 0xffff0000) | + (cs->mbus_attr << 8) | + dram->mbus_dram_target_id, base + WINDOW_BASE(i)); + writel((cs->size - 1) & 0xffff0000, base + WINDOW_SIZE(i)); + + win_enable &= ~(1 << i); + win_protect |= 3 << (2 * i); + } + + writel(win_enable, base + WINDOW_BAR_ENABLE); + msp->win_protect = win_protect; +} + static int mv643xx_eth_shared_probe(struct platform_device *pdev) { static int mv643xx_version_printed = 0; + struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data; struct mv643xx_shared_private *msp; struct resource *res; int ret; @@ -2021,6 +2066,12 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev) platform_set_drvdata(pdev, msp); + /* + * (Re-)program MBUS remapping windows if we are asked to. + */ + if (pd != NULL && pd->dram != NULL) + mv643xx_eth_conf_mbus_windows(msp, pd->dram); + return 0; out_free: diff --git a/include/linux/mv643xx_eth.h b/include/linux/mv643xx_eth.h index 2d59855b61c..4801b02b444 100644 --- a/include/linux/mv643xx_eth.h +++ b/include/linux/mv643xx_eth.h @@ -5,6 +5,8 @@ #ifndef __LINUX_MV643XX_ETH_H #define __LINUX_MV643XX_ETH_H +#include + #define MV643XX_ETH_SHARED_NAME "mv643xx_eth_shared" #define MV643XX_ETH_NAME "mv643xx_eth" #define MV643XX_ETH_SHARED_REGS 0x2000 @@ -13,6 +15,10 @@ #define MV643XX_ETH_SIZE_REG_4 0x2224 #define MV643XX_ETH_BASE_ADDR_ENABLE_REG 0x2290 +struct mv643xx_eth_shared_platform_data { + struct mbus_dram_target_info *dram; +}; + struct mv643xx_eth_platform_data { struct platform_device *shared; int port_number; -- cgit v1.2.3-70-g09d2 From c416a41f99be190e1f558cb06f70ddd560ce8b4b Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Thu, 24 Apr 2008 01:27:32 +0200 Subject: mv643xx_eth: configurable t_clk Make t_clk configurable via platform device data (with the current hardcoded value, 133 MHz, being the default), as it varies across different chip families. Signed-off-by: Lennert Buytenhek Acked-by: Nicolas Pitre Signed-off-by: Dale Farnsworth --- drivers/net/mv643xx_eth.c | 17 +++++++++-------- include/linux/mv643xx_eth.h | 1 + 2 files changed, 10 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index aabf1c60946..8bd41e4e88a 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -519,6 +519,8 @@ struct mv643xx_shared_private { spinlock_t phy_lock; u32 win_protect; + + unsigned int t_clk; }; struct mv643xx_private { @@ -1129,7 +1131,6 @@ static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id) * * INPUT: * struct mv643xx_private *mp Ethernet port - * unsigned int t_clk t_clk of the MV-643xx chip in HZ units * unsigned int delay Delay in usec * * OUTPUT: @@ -1140,10 +1141,10 @@ static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id) * */ static unsigned int eth_port_set_rx_coal(struct mv643xx_private *mp, - unsigned int t_clk, unsigned int delay) + unsigned int delay) { unsigned int port_num = mp->port_num; - unsigned int coal = ((t_clk / 1000000) * delay) / 64; + unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; /* Set RX Coalescing mechanism */ wrl(mp, SDMA_CONFIG_REG(port_num), @@ -1168,7 +1169,6 @@ static unsigned int eth_port_set_rx_coal(struct mv643xx_private *mp, * * INPUT: * struct mv643xx_private *mp Ethernet port - * unsigned int t_clk t_clk of the MV-643xx chip in HZ units * unsigned int delay Delay in uSeconds * * OUTPUT: @@ -1179,9 +1179,9 @@ static unsigned int eth_port_set_rx_coal(struct mv643xx_private *mp, * */ static unsigned int eth_port_set_tx_coal(struct mv643xx_private *mp, - unsigned int t_clk, unsigned int delay) + unsigned int delay) { - unsigned int coal = ((t_clk / 1000000) * delay) / 64; + unsigned int coal = ((mp->shared->t_clk / 1000000) * delay) / 64; /* Set TX Coalescing mechanism */ wrl(mp, TX_FIFO_URGENT_THRESHOLD_REG(mp->port_num), coal << 4); @@ -1423,11 +1423,11 @@ static int mv643xx_eth_open(struct net_device *dev) #ifdef MV643XX_COAL mp->rx_int_coal = - eth_port_set_rx_coal(mp, 133000000, MV643XX_RX_COAL); + eth_port_set_rx_coal(mp, MV643XX_RX_COAL); #endif mp->tx_int_coal = - eth_port_set_tx_coal(mp, 133000000, MV643XX_TX_COAL); + eth_port_set_tx_coal(mp, MV643XX_TX_COAL); /* Unmask phy and link status changes interrupts */ wrl(mp, INTERRUPT_EXTEND_MASK_REG(port_num), ETH_INT_UNMASK_ALL_EXT); @@ -2063,6 +2063,7 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev) goto out_free; spin_lock_init(&msp->phy_lock); + msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000; platform_set_drvdata(pdev, msp); diff --git a/include/linux/mv643xx_eth.h b/include/linux/mv643xx_eth.h index 4801b02b444..9f3a6032ff2 100644 --- a/include/linux/mv643xx_eth.h +++ b/include/linux/mv643xx_eth.h @@ -17,6 +17,7 @@ struct mv643xx_eth_shared_platform_data { struct mbus_dram_target_info *dram; + unsigned int t_clk; }; struct mv643xx_eth_platform_data { -- cgit v1.2.3-70-g09d2 From ce4e2e4558903ef92edf1ab4e09b0b338a09fd61 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Thu, 24 Apr 2008 01:29:59 +0200 Subject: mv643xx_eth: inter-mv643xx SMI port sharing There exist chips with up to four mv643xx_eth silicon blocks but only one external SMI (MII management) interface -- the SMI logic of the first block is shared by all the blocks. Handle this by allowing a per-port override of which mv643xx_eth_shared's SMI registers (and spinlock) to use. Signed-off-by: Lennert Buytenhek Acked-by: Nicolas Pitre Signed-off-by: Dale Farnsworth --- drivers/net/mv643xx_eth.c | 38 ++++++++++++++++++++++---------------- include/linux/mv643xx_eth.h | 2 ++ 2 files changed, 24 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index 8bd41e4e88a..b7915cdcc6a 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -527,6 +527,8 @@ struct mv643xx_private { struct mv643xx_shared_private *shared; int port_num; /* User Ethernet port number */ + struct mv643xx_shared_private *shared_smi; + u32 rx_sram_addr; /* Base address of rx sram area */ u32 rx_sram_size; /* Size of rx sram area */ u32 tx_sram_addr; /* Base address of tx sram area */ @@ -1898,6 +1900,10 @@ static int mv643xx_eth_probe(struct platform_device *pdev) if (mp->shared->win_protect) wrl(mp, WINDOW_PROTECT(port_num), mp->shared->win_protect); + mp->shared_smi = mp->shared; + if (pd->shared_smi != NULL) + mp->shared_smi = platform_get_drvdata(pd->shared_smi); + /* set default config values */ eth_port_uc_addr_get(mp, dev->dev_addr); mp->rx_ring_size = PORT_DEFAULT_RECEIVE_QUEUE_SIZE; @@ -2986,15 +2992,16 @@ static void eth_port_reset(struct mv643xx_private *mp) static void eth_port_read_smi_reg(struct mv643xx_private *mp, unsigned int phy_reg, unsigned int *value) { + void __iomem *smi_reg = mp->shared_smi->eth_base + SMI_REG; int phy_addr = ethernet_phy_get(mp); unsigned long flags; int i; /* the SMI register is a shared resource */ - spin_lock_irqsave(&mp->shared->phy_lock, flags); + spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); /* wait for the SMI register to become available */ - for (i = 0; rdl(mp, SMI_REG) & ETH_SMI_BUSY; i++) { + for (i = 0; readl(smi_reg) & ETH_SMI_BUSY; i++) { if (i == PHY_WAIT_ITERATIONS) { printk("%s: PHY busy timeout\n", mp->dev->name); goto out; @@ -3002,11 +3009,11 @@ static void eth_port_read_smi_reg(struct mv643xx_private *mp, udelay(PHY_WAIT_MICRO_SECONDS); } - wrl(mp, SMI_REG, - (phy_addr << 16) | (phy_reg << 21) | ETH_SMI_OPCODE_READ); + writel((phy_addr << 16) | (phy_reg << 21) | ETH_SMI_OPCODE_READ, + smi_reg); /* now wait for the data to be valid */ - for (i = 0; !(rdl(mp, SMI_REG) & ETH_SMI_READ_VALID); i++) { + for (i = 0; !(readl(smi_reg) & ETH_SMI_READ_VALID); i++) { if (i == PHY_WAIT_ITERATIONS) { printk("%s: PHY read timeout\n", mp->dev->name); goto out; @@ -3014,9 +3021,9 @@ static void eth_port_read_smi_reg(struct mv643xx_private *mp, udelay(PHY_WAIT_MICRO_SECONDS); } - *value = rdl(mp, SMI_REG) & 0xffff; + *value = readl(smi_reg) & 0xffff; out: - spin_unlock_irqrestore(&mp->shared->phy_lock, flags); + spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); } /* @@ -3042,17 +3049,16 @@ out: static void eth_port_write_smi_reg(struct mv643xx_private *mp, unsigned int phy_reg, unsigned int value) { - int phy_addr; - int i; + void __iomem *smi_reg = mp->shared_smi->eth_base + SMI_REG; + int phy_addr = ethernet_phy_get(mp); unsigned long flags; - - phy_addr = ethernet_phy_get(mp); + int i; /* the SMI register is a shared resource */ - spin_lock_irqsave(&mp->shared->phy_lock, flags); + spin_lock_irqsave(&mp->shared_smi->phy_lock, flags); /* wait for the SMI register to become available */ - for (i = 0; rdl(mp, SMI_REG) & ETH_SMI_BUSY; i++) { + for (i = 0; readl(smi_reg) & ETH_SMI_BUSY; i++) { if (i == PHY_WAIT_ITERATIONS) { printk("%s: PHY busy timeout\n", mp->dev->name); goto out; @@ -3060,10 +3066,10 @@ static void eth_port_write_smi_reg(struct mv643xx_private *mp, udelay(PHY_WAIT_MICRO_SECONDS); } - wrl(mp, SMI_REG, (phy_addr << 16) | (phy_reg << 21) | - ETH_SMI_OPCODE_WRITE | (value & 0xffff)); + writel((phy_addr << 16) | (phy_reg << 21) | + ETH_SMI_OPCODE_WRITE | (value & 0xffff), smi_reg); out: - spin_unlock_irqrestore(&mp->shared->phy_lock, flags); + spin_unlock_irqrestore(&mp->shared_smi->phy_lock, flags); } /* diff --git a/include/linux/mv643xx_eth.h b/include/linux/mv643xx_eth.h index 66dc9571922..a15cdd4a8e5 100644 --- a/include/linux/mv643xx_eth.h +++ b/include/linux/mv643xx_eth.h @@ -24,6 +24,8 @@ struct mv643xx_eth_platform_data { struct platform_device *shared; int port_number; + struct platform_device *shared_smi; + u16 force_phy_addr; /* force override if phy_addr == 0 */ u16 phy_addr; -- cgit v1.2.3-70-g09d2 From 70b9f7dc1435412ca2b89b13a8353bd9915a7189 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 28 Apr 2008 16:27:23 -0700 Subject: x86/pci: remove flag in pci_cfg_space_size_ext so let pci_cfg_space_size call it directly without flag. Signed-off-by: Yinghai Lu Signed-off-by: Jesse Barnes --- arch/x86/pci/fixup.c | 2 +- drivers/pci/probe.c | 33 +++++++++++++++++---------------- include/linux/pci.h | 2 +- 3 files changed, 19 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c index b60b2abd480..ff3a6a33634 100644 --- a/arch/x86/pci/fixup.c +++ b/arch/x86/pci/fixup.c @@ -502,7 +502,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SIEMENS, 0x0015, */ static void fam10h_pci_cfg_space_size(struct pci_dev *dev) { - dev->cfg_size = pci_cfg_space_size_ext(dev, 0); + dev->cfg_size = pci_cfg_space_size_ext(dev); } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1200, fam10h_pci_cfg_space_size); diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 4a55bf38095..3706ce7972d 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -842,13 +842,25 @@ static void set_pcie_port_type(struct pci_dev *pdev) * reading the dword at 0x100 which must either be 0 or a valid extended * capability header. */ -int pci_cfg_space_size_ext(struct pci_dev *dev, unsigned check_exp_pcix) +int pci_cfg_space_size_ext(struct pci_dev *dev) { - int pos; u32 status; - if (!check_exp_pcix) - goto skip; + if (pci_read_config_dword(dev, 256, &status) != PCIBIOS_SUCCESSFUL) + goto fail; + if (status == 0xffffffff) + goto fail; + + return PCI_CFG_SPACE_EXP_SIZE; + + fail: + return PCI_CFG_SPACE_SIZE; +} + +int pci_cfg_space_size(struct pci_dev *dev) +{ + int pos; + u32 status; pos = pci_find_capability(dev, PCI_CAP_ID_EXP); if (!pos) { @@ -861,23 +873,12 @@ int pci_cfg_space_size_ext(struct pci_dev *dev, unsigned check_exp_pcix) goto fail; } - skip: - if (pci_read_config_dword(dev, 256, &status) != PCIBIOS_SUCCESSFUL) - goto fail; - if (status == 0xffffffff) - goto fail; - - return PCI_CFG_SPACE_EXP_SIZE; + return pci_cfg_space_size_ext(dev); fail: return PCI_CFG_SPACE_SIZE; } -int pci_cfg_space_size(struct pci_dev *dev) -{ - return pci_cfg_space_size_ext(dev, 1); -} - static void pci_release_bus_bridge_dev(struct device *dev) { kfree(dev); diff --git a/include/linux/pci.h b/include/linux/pci.h index a59517b4930..509159bcd4e 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -667,7 +667,7 @@ int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *), void *userdata); -int pci_cfg_space_size_ext(struct pci_dev *dev, unsigned check_exp_pcix); +int pci_cfg_space_size_ext(struct pci_dev *dev); int pci_cfg_space_size(struct pci_dev *dev); unsigned char pci_bus_max_busnr(struct pci_bus *bus); -- cgit v1.2.3-70-g09d2 From 3ae15e1623b9d32eb410c2a23d90e47b16e6acd0 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 30 Apr 2008 19:52:55 -0700 Subject: IB/mlx4: Fix off-by-one errors in calls to mlx4_ib_free_cq_buf() When I merged bbf8eed1 ("IB/mlx4: Add support for resizing CQs") I changed things around so that mlx4_ib_alloc_cq_buf() and mlx4_ib_free_cq_buf() were used everywhere they could be. However, I screwed up the number of entries passed into mlx4_ib_alloc_cq_buf() in a couple places -- the function bumps the number of entries internally, so the caller shouldn't add 1 as well. Passing a too-big value for the number of entries to mlx4_ib_free_cq_buf() can cause the cleanup to go off the end of an array and corrupt allocator state in interesting ways. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/cq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c index 2f199c5c4a7..4521319b140 100644 --- a/drivers/infiniband/hw/mlx4/cq.c +++ b/drivers/infiniband/hw/mlx4/cq.c @@ -246,7 +246,7 @@ err_mtt: if (context) ib_umem_release(cq->umem); else - mlx4_ib_free_cq_buf(dev, &cq->buf, entries); + mlx4_ib_free_cq_buf(dev, &cq->buf, cq->ibcq.cqe); err_db: if (!context) @@ -434,7 +434,7 @@ int mlx4_ib_destroy_cq(struct ib_cq *cq) mlx4_ib_db_unmap_user(to_mucontext(cq->uobject->context), &mcq->db); ib_umem_release(mcq->umem); } else { - mlx4_ib_free_cq_buf(dev, &mcq->buf, cq->cqe + 1); + mlx4_ib_free_cq_buf(dev, &mcq->buf, cq->cqe); mlx4_db_free(dev->dev, &mcq->db); } -- cgit v1.2.3-70-g09d2 From 57ce41d1d18279cc90223f3deadca70c7de1cfca Mon Sep 17 00:00:00 2001 From: Eli Cohen Date: Wed, 30 Apr 2008 20:02:45 -0700 Subject: IB/ipoib: Fix transmit queue stalling forever Commit f56bcd80 ("IPoIB: Use separate CQ for UD send completions") introduced a bug where the transmit queue could get stopped and never woken up. The problem is that send completions are only polled at the end of the xmit function, so if the send queue fills up and the xmit path stops the queue, then there is no way for send completions to ever get polled, and so the transmit queue stays stopped forever. Fix this by arming the send CQ just before posting the last send request that fills the send queue. Then, when the completion event handler is called, drain the send CQ. Since it is possible that not enough send completions are in the CQ, verify that the the net queue has been woken up after draining the send CQ, and if not arm a timer and drain again at the timer function. Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib.h | 2 ++ drivers/infiniband/ulp/ipoib/ipoib_ib.c | 47 ++++++++++++++++++++++++++---- drivers/infiniband/ulp/ipoib/ipoib_verbs.c | 3 +- 3 files changed, 46 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h index 9044f880353..ca126fc2b85 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib.h +++ b/drivers/infiniband/ulp/ipoib/ipoib.h @@ -334,6 +334,7 @@ struct ipoib_dev_priv { #endif int hca_caps; struct ipoib_ethtool_st ethtool; + struct timer_list poll_timer; }; struct ipoib_ah { @@ -404,6 +405,7 @@ extern struct workqueue_struct *ipoib_workqueue; int ipoib_poll(struct napi_struct *napi, int budget); void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr); +void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr); struct ipoib_ah *ipoib_create_ah(struct net_device *dev, struct ib_pd *pd, struct ib_ah_attr *attr); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index 97b815c1a3f..f429bce24c2 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -461,6 +461,26 @@ void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr) netif_rx_schedule(dev, &priv->napi); } +static void drain_tx_cq(struct net_device *dev) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + unsigned long flags; + + spin_lock_irqsave(&priv->tx_lock, flags); + while (poll_tx(priv)) + ; /* nothing */ + + if (netif_queue_stopped(dev)) + mod_timer(&priv->poll_timer, jiffies + 1); + + spin_unlock_irqrestore(&priv->tx_lock, flags); +} + +void ipoib_send_comp_handler(struct ib_cq *cq, void *dev_ptr) +{ + drain_tx_cq((struct net_device *)dev_ptr); +} + static inline int post_send(struct ipoib_dev_priv *priv, unsigned int wr_id, struct ib_ah *address, u32 qpn, @@ -555,12 +575,22 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb, else priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM; + if (++priv->tx_outstanding == ipoib_sendq_size) { + ipoib_dbg(priv, "TX ring full, stopping kernel net queue\n"); + if (ib_req_notify_cq(priv->send_cq, IB_CQ_NEXT_COMP)) + ipoib_warn(priv, "request notify on send CQ failed\n"); + netif_stop_queue(dev); + } + if (unlikely(post_send(priv, priv->tx_head & (ipoib_sendq_size - 1), address->ah, qpn, tx_req, phead, hlen))) { ipoib_warn(priv, "post_send failed\n"); ++dev->stats.tx_errors; + --priv->tx_outstanding; ipoib_dma_unmap_tx(priv->ca, tx_req); dev_kfree_skb_any(skb); + if (netif_queue_stopped(dev)) + netif_wake_queue(dev); } else { dev->trans_start = jiffies; @@ -568,14 +598,11 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb, ++priv->tx_head; skb_orphan(skb); - if (++priv->tx_outstanding == ipoib_sendq_size) { - ipoib_dbg(priv, "TX ring full, stopping kernel net queue\n"); - netif_stop_queue(dev); - } } if (unlikely(priv->tx_outstanding > MAX_SEND_CQE)) - poll_tx(priv); + while (poll_tx(priv)) + ; /* nothing */ } static void __ipoib_reap_ah(struct net_device *dev) @@ -609,6 +636,11 @@ void ipoib_reap_ah(struct work_struct *work) round_jiffies_relative(HZ)); } +static void ipoib_ib_tx_timer_func(unsigned long ctx) +{ + drain_tx_cq((struct net_device *)ctx); +} + int ipoib_ib_dev_open(struct net_device *dev) { struct ipoib_dev_priv *priv = netdev_priv(dev); @@ -645,6 +677,10 @@ int ipoib_ib_dev_open(struct net_device *dev) queue_delayed_work(ipoib_workqueue, &priv->ah_reap_task, round_jiffies_relative(HZ)); + init_timer(&priv->poll_timer); + priv->poll_timer.function = ipoib_ib_tx_timer_func; + priv->poll_timer.data = (unsigned long)dev; + set_bit(IPOIB_FLAG_INITIALIZED, &priv->flags); return 0; @@ -810,6 +846,7 @@ int ipoib_ib_dev_stop(struct net_device *dev, int flush) ipoib_dbg(priv, "All sends and receives done.\n"); timeout: + del_timer_sync(&priv->poll_timer); qp_attr.qp_state = IB_QPS_RESET; if (ib_modify_qp(priv->qp, &qp_attr, IB_QP_STATE)) ipoib_warn(priv, "Failed to modify QP to RESET state\n"); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c index c1e7ece1fd4..8766d29ce3b 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c @@ -187,7 +187,8 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca) goto out_free_mr; } - priv->send_cq = ib_create_cq(priv->ca, NULL, NULL, dev, ipoib_sendq_size, 0); + priv->send_cq = ib_create_cq(priv->ca, ipoib_send_comp_handler, NULL, + dev, ipoib_sendq_size, 0); if (IS_ERR(priv->send_cq)) { printk(KERN_WARNING "%s: failed to create send CQ\n", ca->name); goto out_free_recv_cq; -- cgit v1.2.3-70-g09d2 From c8286944b802c5ce4063ec3c334b38c6757a9434 Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Fri, 2 May 2008 11:17:41 -0500 Subject: RDMA/cxgb3: QP flush fixes - Flush the QP only after the HW disables the connection. Currently we flush the QP when transitioning to CLOSING. This exposes a race condition where the HW can complete a RECV WR, for instance, -and- the SW can flush that same WR. - Only call CQ event handlers on flush IFF we actually flushed something. Signed-off-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb3/cxio_hal.c | 13 ++++++++++--- drivers/infiniband/hw/cxgb3/cxio_hal.h | 4 ++-- drivers/infiniband/hw/cxgb3/iwch_qp.c | 13 ++++++++----- 3 files changed, 20 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c b/drivers/infiniband/hw/cxgb3/cxio_hal.c index ed2ee4ba4b7..5fd8506a865 100644 --- a/drivers/infiniband/hw/cxgb3/cxio_hal.c +++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c @@ -359,9 +359,10 @@ static void insert_recv_cqe(struct t3_wq *wq, struct t3_cq *cq) cq->sw_wptr++; } -void cxio_flush_rq(struct t3_wq *wq, struct t3_cq *cq, int count) +int cxio_flush_rq(struct t3_wq *wq, struct t3_cq *cq, int count) { u32 ptr; + int flushed = 0; PDBG("%s wq %p cq %p\n", __func__, wq, cq); @@ -369,8 +370,11 @@ void cxio_flush_rq(struct t3_wq *wq, struct t3_cq *cq, int count) PDBG("%s rq_rptr %u rq_wptr %u skip count %u\n", __func__, wq->rq_rptr, wq->rq_wptr, count); ptr = wq->rq_rptr + count; - while (ptr++ != wq->rq_wptr) + while (ptr++ != wq->rq_wptr) { insert_recv_cqe(wq, cq); + flushed++; + } + return flushed; } static void insert_sq_cqe(struct t3_wq *wq, struct t3_cq *cq, @@ -394,9 +398,10 @@ static void insert_sq_cqe(struct t3_wq *wq, struct t3_cq *cq, cq->sw_wptr++; } -void cxio_flush_sq(struct t3_wq *wq, struct t3_cq *cq, int count) +int cxio_flush_sq(struct t3_wq *wq, struct t3_cq *cq, int count) { __u32 ptr; + int flushed = 0; struct t3_swsq *sqp = wq->sq + Q_PTR2IDX(wq->sq_rptr, wq->sq_size_log2); ptr = wq->sq_rptr + count; @@ -405,7 +410,9 @@ void cxio_flush_sq(struct t3_wq *wq, struct t3_cq *cq, int count) insert_sq_cqe(wq, cq, sqp); sqp++; ptr++; + flushed++; } + return flushed; } /* diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.h b/drivers/infiniband/hw/cxgb3/cxio_hal.h index 2bcff7f5046..69ab08ebc68 100644 --- a/drivers/infiniband/hw/cxgb3/cxio_hal.h +++ b/drivers/infiniband/hw/cxgb3/cxio_hal.h @@ -173,8 +173,8 @@ u32 cxio_hal_get_pdid(struct cxio_hal_resource *rscp); void cxio_hal_put_pdid(struct cxio_hal_resource *rscp, u32 pdid); int __init cxio_hal_init(void); void __exit cxio_hal_exit(void); -void cxio_flush_rq(struct t3_wq *wq, struct t3_cq *cq, int count); -void cxio_flush_sq(struct t3_wq *wq, struct t3_cq *cq, int count); +int cxio_flush_rq(struct t3_wq *wq, struct t3_cq *cq, int count); +int cxio_flush_sq(struct t3_wq *wq, struct t3_cq *cq, int count); void cxio_count_rcqes(struct t3_cq *cq, struct t3_wq *wq, int *count); void cxio_count_scqes(struct t3_cq *cq, struct t3_wq *wq, int *count); void cxio_flush_hw_cq(struct t3_cq *cq); diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c index 9b4be889c58..79dbe5beae5 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_qp.c +++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c @@ -655,6 +655,7 @@ static void __flush_qp(struct iwch_qp *qhp, unsigned long *flag) { struct iwch_cq *rchp, *schp; int count; + int flushed; rchp = get_chp(qhp->rhp, qhp->attr.rcq); schp = get_chp(qhp->rhp, qhp->attr.scq); @@ -669,20 +670,22 @@ static void __flush_qp(struct iwch_qp *qhp, unsigned long *flag) spin_lock(&qhp->lock); cxio_flush_hw_cq(&rchp->cq); cxio_count_rcqes(&rchp->cq, &qhp->wq, &count); - cxio_flush_rq(&qhp->wq, &rchp->cq, count); + flushed = cxio_flush_rq(&qhp->wq, &rchp->cq, count); spin_unlock(&qhp->lock); spin_unlock_irqrestore(&rchp->lock, *flag); - (*rchp->ibcq.comp_handler)(&rchp->ibcq, rchp->ibcq.cq_context); + if (flushed) + (*rchp->ibcq.comp_handler)(&rchp->ibcq, rchp->ibcq.cq_context); /* locking heirarchy: cq lock first, then qp lock. */ spin_lock_irqsave(&schp->lock, *flag); spin_lock(&qhp->lock); cxio_flush_hw_cq(&schp->cq); cxio_count_scqes(&schp->cq, &qhp->wq, &count); - cxio_flush_sq(&qhp->wq, &schp->cq, count); + flushed = cxio_flush_sq(&qhp->wq, &schp->cq, count); spin_unlock(&qhp->lock); spin_unlock_irqrestore(&schp->lock, *flag); - (*schp->ibcq.comp_handler)(&schp->ibcq, schp->ibcq.cq_context); + if (flushed) + (*schp->ibcq.comp_handler)(&schp->ibcq, schp->ibcq.cq_context); /* deref */ if (atomic_dec_and_test(&qhp->refcnt)) @@ -880,7 +883,6 @@ int iwch_modify_qp(struct iwch_dev *rhp, struct iwch_qp *qhp, ep = qhp->ep; get_ep(&ep->com); } - flush_qp(qhp, &flag); break; case IWCH_QP_STATE_TERMINATE: qhp->attr.state = IWCH_QP_STATE_TERMINATE; @@ -911,6 +913,7 @@ int iwch_modify_qp(struct iwch_dev *rhp, struct iwch_qp *qhp, } switch (attrs->next_state) { case IWCH_QP_STATE_IDLE: + flush_qp(qhp, &flag); qhp->attr.state = IWCH_QP_STATE_IDLE; qhp->attr.llp_stream_handle = NULL; put_ep(&qhp->ep->com); -- cgit v1.2.3-70-g09d2 From c4d49776e8f5bf2d900d2b6d4855c1670a535ac5 Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Fri, 2 May 2008 10:57:09 -0700 Subject: RDMA/cxgb3: Silently ignore close reply after abort. Remove bad BUG_ON() that can trigger in correct operation from close_con_rpl(). It is possible to get a close_rpl message on a dead connection. The sequence is: - host refs ep for close exchange - host posts close_req - hw posts PEER_ABORT from incoming RST - host marks ep DEAD - host posts ABORT_RPL and releases ep resources - hw posts CLOSE_RPL - host derefs ep and ep freed. Signed-off-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb3/iwch_cm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c index d44a6df9ad8..32e290e5661 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_cm.c +++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c @@ -1650,8 +1650,8 @@ static int close_con_rpl(struct t3cdev *tdev, struct sk_buff *skb, void *ctx) release = 1; break; case ABORTING: - break; case DEAD: + break; default: BUG_ON(1); break; -- cgit v1.2.3-70-g09d2 From 77a8d5741f3ee2c79554382179cca7b5893d6ae9 Mon Sep 17 00:00:00 2001 From: Steve Wise Date: Fri, 2 May 2008 10:57:09 -0700 Subject: RDMA/cxgb3: Bump up the MPA connection setup timeout. Testing on large clusters shows its way too short at 10 secs. Signed-off-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb3/iwch_cm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c index 32e290e5661..c325c44807e 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_cm.c +++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c @@ -67,10 +67,10 @@ int peer2peer = 0; module_param(peer2peer, int, 0644); MODULE_PARM_DESC(peer2peer, "Support peer2peer ULPs (default=0)"); -static int ep_timeout_secs = 10; +static int ep_timeout_secs = 60; module_param(ep_timeout_secs, int, 0644); MODULE_PARM_DESC(ep_timeout_secs, "CM Endpoint operation timeout " - "in seconds (default=10)"); + "in seconds (default=60)"); static int mpa_rev = 1; module_param(mpa_rev, int, 0644); -- cgit v1.2.3-70-g09d2 From 5b81d689e57a85b1ff60edfb65e5b8a12d28ecee Mon Sep 17 00:00:00 2001 From: Robert Reif Date: Sat, 3 May 2008 20:55:27 -0700 Subject: sparc: tcx.c remove unnecessary function From: Robert Reif Replaced tcx_init_one with tcx_probe. Fixed some checkpatch problems. Signed-off-by: David S. Miller --- drivers/video/tcx.c | 20 +++++++------------- 1 file changed, 7 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/video/tcx.c b/drivers/video/tcx.c index a7177430577..44e8c27ed0f 100644 --- a/drivers/video/tcx.c +++ b/drivers/video/tcx.c @@ -84,7 +84,7 @@ struct tcx_tec { struct tcx_thc { u32 thc_rev; - u32 thc_pad0[511]; + u32 thc_pad0[511]; u32 thc_hs; /* hsync timing */ u32 thc_hsdvs; u32 thc_hd; @@ -126,10 +126,10 @@ struct tcx_par { }; /* Reset control plane so that WID is 8-bit plane. */ -static void __tcx_set_control_plane (struct tcx_par *par) +static void __tcx_set_control_plane(struct tcx_par *par) { u32 __iomem *p, *pend; - + if (par->lowdepth) return; @@ -143,8 +143,8 @@ static void __tcx_set_control_plane (struct tcx_par *par) sbus_writel(tmp, p); } } - -static void tcx_reset (struct fb_info *info) + +static void tcx_reset(struct fb_info *info) { struct tcx_par *par = (struct tcx_par *) info->par; unsigned long flags; @@ -365,7 +365,8 @@ static void tcx_unmap_regs(struct of_device *op, struct fb_info *info, info->screen_base, par->fbsize); } -static int __devinit tcx_init_one(struct of_device *op) +static int __devinit tcx_probe(struct of_device *op, + const struct of_device_id *match) { struct device_node *dp = op->node; struct fb_info *info; @@ -488,13 +489,6 @@ out_err: return err; } -static int __devinit tcx_probe(struct of_device *dev, const struct of_device_id *match) -{ - struct of_device *op = to_of_device(&dev->dev); - - return tcx_init_one(op); -} - static int __devexit tcx_remove(struct of_device *op) { struct fb_info *info = dev_get_drvdata(&op->dev); -- cgit v1.2.3-70-g09d2 From e544ff00da4b53069dbca3debbfb02d455f72467 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 3 May 2008 21:10:58 -0700 Subject: lapbeth: Release ->ethdev when unregistering device. Otherwise it leaks forever. Based upon a report by Roland Signed-off-by: David S. Miller --- drivers/net/wan/lapbether.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/wan/lapbether.c b/drivers/net/wan/lapbether.c index b5860b97a93..24fd613466b 100644 --- a/drivers/net/wan/lapbether.c +++ b/drivers/net/wan/lapbether.c @@ -459,6 +459,7 @@ static void __exit lapbeth_cleanup_driver(void) list_for_each_safe(entry, tmp, &lapbeth_devices) { lapbeth = list_entry(entry, struct lapbethdev, node); + dev_put(lapbeth->ethdev); unregister_netdevice(lapbeth->axdev); } rtnl_unlock(); -- cgit v1.2.3-70-g09d2 From 59f7137a1369c25308672def38f3b126d0c7575a Mon Sep 17 00:00:00 2001 From: Robert Reif Date: Sat, 3 May 2008 21:12:00 -0700 Subject: sparc video: make blank use proper constant Make blank functions use proper constant for unblanking. Signed-off-by: Robert Reif Signed-off-by: David S. Miller --- drivers/video/bw2.c | 2 +- drivers/video/cg3.c | 2 +- drivers/video/cg6.c | 2 +- drivers/video/ffb.c | 2 +- drivers/video/leo.c | 2 +- drivers/video/p9100.c | 2 +- 6 files changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/video/bw2.c b/drivers/video/bw2.c index 275d9dab0c6..79f85dc402d 100644 --- a/drivers/video/bw2.c +++ b/drivers/video/bw2.c @@ -329,7 +329,7 @@ static int __devinit bw2_probe(struct of_device *op, const struct of_device_id * if (!info->screen_base) goto out_unmap_regs; - bw2_blank(0, info); + bw2_blank(FB_BLANK_UNBLANK, info); bw2_init_fix(info, linebytes); diff --git a/drivers/video/cg3.c b/drivers/video/cg3.c index 010ea53978f..e31e26a6bb7 100644 --- a/drivers/video/cg3.c +++ b/drivers/video/cg3.c @@ -398,7 +398,7 @@ static int __devinit cg3_probe(struct of_device *op, if (!info->screen_base) goto out_unmap_regs; - cg3_blank(0, info); + cg3_blank(FB_BLANK_UNBLANK, info); if (!of_find_property(dp, "width", NULL)) { err = cg3_do_default_mode(par); diff --git a/drivers/video/cg6.c b/drivers/video/cg6.c index fc90db6da65..8000bccecdc 100644 --- a/drivers/video/cg6.c +++ b/drivers/video/cg6.c @@ -767,7 +767,7 @@ static int __devinit cg6_probe(struct of_device *op, cg6_bt_init(par); cg6_chip_init(info); - cg6_blank(0, info); + cg6_blank(FB_BLANK_UNBLANK, info); if (fb_alloc_cmap(&info->cmap, 256, 0)) goto out_unmap_regs; diff --git a/drivers/video/ffb.c b/drivers/video/ffb.c index 93dca3e2aa5..0f42a696d17 100644 --- a/drivers/video/ffb.c +++ b/drivers/video/ffb.c @@ -987,7 +987,7 @@ static int __devinit ffb_probe(struct of_device *op, * chosen console, it will have video outputs off in * the DAC. */ - ffb_blank(0, info); + ffb_blank(FB_BLANK_UNBLANK, info); if (fb_alloc_cmap(&info->cmap, 256, 0)) goto out_unmap_dac; diff --git a/drivers/video/leo.c b/drivers/video/leo.c index f3160fc2979..fb129928d5d 100644 --- a/drivers/video/leo.c +++ b/drivers/video/leo.c @@ -601,7 +601,7 @@ static int __devinit leo_probe(struct of_device *op, const struct of_device_id * leo_init_wids(info); leo_init_hw(info); - leo_blank(0, info); + leo_blank(FB_BLANK_UNBLANK, info); if (fb_alloc_cmap(&info->cmap, 256, 0)) goto out_unmap_regs; diff --git a/drivers/video/p9100.c b/drivers/video/p9100.c index c95874fe907..676ffb06d1c 100644 --- a/drivers/video/p9100.c +++ b/drivers/video/p9100.c @@ -295,7 +295,7 @@ static int __devinit p9100_probe(struct of_device *op, const struct of_device_id if (!info->screen_base) goto out_unmap_regs; - p9100_blank(0, info); + p9100_blank(FB_BLANK_UNBLANK, info); if (fb_alloc_cmap(&info->cmap, 256, 0)) goto out_unmap_screen; -- cgit v1.2.3-70-g09d2 From be0c007ac64f880a946995d6d1fc654acc81484d Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 4 May 2008 01:34:31 -0700 Subject: niu: Fix probing regression for maramba on-board chips. Changeset 7f7c4072ea552f97a0898331322f71986a97299c ("niu: Determine the # of ports from the card's VPD data") caused maramba on-board NIU ports to stop probing properly. The old code had a fallback that would use a num_ports value of 4 if all the probing methods failed, but that was removed. This restores the fallback of 4 ports, to get things working again. Bump driver version and release date. Signed-off-by: David S. Miller --- drivers/net/niu.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/niu.c b/drivers/net/niu.c index 4009c4ce96b..57cfd72ffdf 100644 --- a/drivers/net/niu.c +++ b/drivers/net/niu.c @@ -1,6 +1,6 @@ /* niu.c: Neptune ethernet driver. * - * Copyright (C) 2007 David S. Miller (davem@davemloft.net) + * Copyright (C) 2007, 2008 David S. Miller (davem@davemloft.net) */ #include @@ -33,8 +33,8 @@ #define DRV_MODULE_NAME "niu" #define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "0.8" -#define DRV_MODULE_RELDATE "April 24, 2008" +#define DRV_MODULE_VERSION "0.9" +#define DRV_MODULE_RELDATE "May 4, 2008" static char version[] __devinitdata = DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; @@ -7264,8 +7264,11 @@ static int __devinit niu_get_and_validate_port(struct niu *np) parent->num_ports = nr64(ESPC_NUM_PORTS_MACS) & ESPC_NUM_PORTS_MACS_VAL; + /* All of the current probing methods fail on + * Maramba on-board parts. + */ if (!parent->num_ports) - return -ENODEV; + parent->num_ports = 4; } } } -- cgit v1.2.3-70-g09d2 From 1024c5f4be4fc5b00337464fb8a442bebf15df68 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sun, 4 May 2008 17:03:41 +0200 Subject: ide: IDE_HFLAG_SERIALIZE_DMA bugfix Patch re-ordering could be harmful: commit 1fd1890594bd355a4217f5658a34763e77decee3 Author: Bartlomiej Zolnierkiewicz Date: Sat Apr 26 22:25:24 2008 +0200 ide: add IDE_HFLAG_SERIALIZE_DMA host flag ... is buggy because ->init_dma method / ide_hwif_setup_dma() is called before IDE_HFLAG_SERIALIZE_DMA host flag is checked. Fix it by checking IDE_HFLAG_SERIALIZE[_DMA] after DMA initialization. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-probe.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 591deda3f86..34b0d4f26b5 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -1355,12 +1355,6 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port, if (hwif->chipset != ide_dtc2278 || hwif->channel == 0) hwif->port_ops = d->port_ops; - if ((d->host_flags & IDE_HFLAG_SERIALIZE) || - ((d->host_flags & IDE_HFLAG_SERIALIZE_DMA) && hwif->dma_base)) { - if (hwif->mate) - hwif->mate->serialized = hwif->serialized = 1; - } - hwif->swdma_mask = d->swdma_mask; hwif->mwdma_mask = d->mwdma_mask; hwif->ultra_mask = d->udma_mask; @@ -1382,6 +1376,12 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port, hwif->dma_ops = d->dma_ops; } + if ((d->host_flags & IDE_HFLAG_SERIALIZE) || + ((d->host_flags & IDE_HFLAG_SERIALIZE_DMA) && hwif->dma_base)) { + if (hwif->mate) + hwif->mate->serialized = hwif->serialized = 1; + } + if (d->host_flags & IDE_HFLAG_RQSIZE_256) hwif->rqsize = 256; -- cgit v1.2.3-70-g09d2 From 0885cb5653ff82c8d322df1b8a95843dc5f5486b Mon Sep 17 00:00:00 2001 From: Daniel Walker Date: Sat, 3 May 2008 06:34:01 +1000 Subject: [POWERPC] macintosh: therm_pm72: driver_lock semaphore to mutex Signed-off-by: Daniel Walker Signed-off-by: Andrew Morton Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- drivers/macintosh/therm_pm72.c | 31 ++++++++++++++++--------------- 1 file changed, 16 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c index 1e0a69a5e81..ddfb426a9ab 100644 --- a/drivers/macintosh/therm_pm72.c +++ b/drivers/macintosh/therm_pm72.c @@ -122,6 +122,7 @@ #include #include #include +#include #include #include #include @@ -169,7 +170,7 @@ static int rackmac; static s32 dimm_output_clamp; static int fcu_rpm_shift; static int fcu_tickle_ticks; -static DECLARE_MUTEX(driver_lock); +static DEFINE_MUTEX(driver_lock); /* * We have 3 types of CPU PID control. One is "split" old style control @@ -729,9 +730,9 @@ static void fetch_cpu_pumps_minmax(void) static ssize_t show_##name(struct device *dev, struct device_attribute *attr, char *buf) \ { \ ssize_t r; \ - down(&driver_lock); \ + mutex_lock(&driver_lock); \ r = sprintf(buf, "%d.%03d", FIX32TOPRINT(data)); \ - up(&driver_lock); \ + mutex_unlock(&driver_lock); \ return r; \ } #define BUILD_SHOW_FUNC_INT(name, data) \ @@ -1803,11 +1804,11 @@ static int main_control_loop(void *x) { DBG("main_control_loop started\n"); - down(&driver_lock); + mutex_lock(&driver_lock); if (start_fcu() < 0) { printk(KERN_ERR "kfand: failed to start FCU\n"); - up(&driver_lock); + mutex_unlock(&driver_lock); goto out; } @@ -1822,14 +1823,14 @@ static int main_control_loop(void *x) fcu_tickle_ticks = FCU_TICKLE_TICKS; - up(&driver_lock); + mutex_unlock(&driver_lock); while (state == state_attached) { unsigned long elapsed, start; start = jiffies; - down(&driver_lock); + mutex_lock(&driver_lock); /* Tickle the FCU just in case */ if (--fcu_tickle_ticks < 0) { @@ -1861,7 +1862,7 @@ static int main_control_loop(void *x) do_monitor_slots(&slots_state); else do_monitor_drives(&drives_state); - up(&driver_lock); + mutex_unlock(&driver_lock); if (critical_state == 1) { printk(KERN_WARNING "Temperature control detected a critical condition\n"); @@ -2019,13 +2020,13 @@ static void detach_fcu(void) */ static int therm_pm72_attach(struct i2c_adapter *adapter) { - down(&driver_lock); + mutex_lock(&driver_lock); /* Check state */ if (state == state_detached) state = state_attaching; if (state != state_attaching) { - up(&driver_lock); + mutex_unlock(&driver_lock); return 0; } @@ -2054,7 +2055,7 @@ static int therm_pm72_attach(struct i2c_adapter *adapter) state = state_attached; start_control_loops(); } - up(&driver_lock); + mutex_unlock(&driver_lock); return 0; } @@ -2065,16 +2066,16 @@ static int therm_pm72_attach(struct i2c_adapter *adapter) */ static int therm_pm72_detach(struct i2c_adapter *adapter) { - down(&driver_lock); + mutex_lock(&driver_lock); if (state != state_detached) state = state_detaching; /* Stop control loops if any */ DBG("stopping control loops\n"); - up(&driver_lock); + mutex_unlock(&driver_lock); stop_control_loops(); - down(&driver_lock); + mutex_lock(&driver_lock); if (u3_0 != NULL && !strcmp(adapter->name, "u3 0")) { DBG("lost U3-0, disposing control loops\n"); @@ -2090,7 +2091,7 @@ static int therm_pm72_detach(struct i2c_adapter *adapter) if (u3_0 == NULL && u3_1 == NULL) state = state_detached; - up(&driver_lock); + mutex_unlock(&driver_lock); return 0; } -- cgit v1.2.3-70-g09d2 From 56783c5e4dd32ca370ad0bdf3a9c6c1aaee94726 Mon Sep 17 00:00:00 2001 From: Daniel Walker Date: Sat, 3 May 2008 06:34:02 +1000 Subject: [POWERPC] macintosh: windfarm_smu_sat: semaphore to mutex Signed-off-by: Daniel Walker Signed-off-by: Andrew Morton Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- drivers/macintosh/windfarm_smu_sat.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/macintosh/windfarm_smu_sat.c b/drivers/macintosh/windfarm_smu_sat.c index 797918d0e59..7f2be4baaed 100644 --- a/drivers/macintosh/windfarm_smu_sat.c +++ b/drivers/macintosh/windfarm_smu_sat.c @@ -13,7 +13,7 @@ #include #include #include -#include +#include #include #include #include @@ -36,7 +36,7 @@ struct wf_sat { int nr; atomic_t refcnt; - struct semaphore mutex; + struct mutex mutex; unsigned long last_read; /* jiffies when cache last updated */ u8 cache[16]; struct i2c_client i2c; @@ -163,7 +163,7 @@ static int wf_sat_get(struct wf_sensor *sr, s32 *value) if (sat->i2c.adapter == NULL) return -ENODEV; - down(&sat->mutex); + mutex_lock(&sat->mutex); if (time_after(jiffies, (sat->last_read + MAX_AGE))) { err = wf_sat_read_cache(sat); if (err) @@ -182,7 +182,7 @@ static int wf_sat_get(struct wf_sensor *sr, s32 *value) err = 0; fail: - up(&sat->mutex); + mutex_unlock(&sat->mutex); return err; } @@ -233,7 +233,7 @@ static void wf_sat_create(struct i2c_adapter *adapter, struct device_node *dev) sat->nr = -1; sat->node = of_node_get(dev); atomic_set(&sat->refcnt, 0); - init_MUTEX(&sat->mutex); + mutex_init(&sat->mutex); sat->i2c.addr = (addr >> 1) & 0x7f; sat->i2c.adapter = adapter; sat->i2c.driver = &wf_sat_driver; -- cgit v1.2.3-70-g09d2 From af3ce514ade2fd0e18c5d078d138a6c1137a33df Mon Sep 17 00:00:00 2001 From: Daniel Walker Date: Sat, 3 May 2008 06:34:03 +1000 Subject: [POWERPC] macintosh: ADB driver: adb_handler_sem semaphore to mutex Signed-off-by: Daniel Walker Signed-off-by: Andrew Morton Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- drivers/macintosh/adb.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c index 20978205cd0..b8b9e44f7f4 100644 --- a/drivers/macintosh/adb.c +++ b/drivers/macintosh/adb.c @@ -37,7 +37,7 @@ #include #include #include -#include +#include #include #ifdef CONFIG_PPC @@ -102,7 +102,7 @@ static struct adb_handler { } adb_handler[16]; /* - * The adb_handler_sem mutex protects all accesses to the original_address + * The adb_handler_mutex mutex protects all accesses to the original_address * and handler_id fields of adb_handler[i] for all i, and changes to the * handler field. * Accesses to the handler field are protected by the adb_handler_lock @@ -110,7 +110,7 @@ static struct adb_handler { * time adb_unregister returns, we know that the old handler isn't being * called. */ -static DECLARE_MUTEX(adb_handler_sem); +static DEFINE_MUTEX(adb_handler_mutex); static DEFINE_RWLOCK(adb_handler_lock); #if 0 @@ -355,7 +355,7 @@ do_adb_reset_bus(void) msleep(500); } - down(&adb_handler_sem); + mutex_lock(&adb_handler_mutex); write_lock_irq(&adb_handler_lock); memset(adb_handler, 0, sizeof(adb_handler)); write_unlock_irq(&adb_handler_lock); @@ -376,7 +376,7 @@ do_adb_reset_bus(void) if (adb_controller->autopoll) adb_controller->autopoll(autopoll_devs); } - up(&adb_handler_sem); + mutex_unlock(&adb_handler_mutex); blocking_notifier_call_chain(&adb_client_list, ADB_MSG_POST_RESET, NULL); @@ -454,7 +454,7 @@ adb_register(int default_id, int handler_id, struct adb_ids *ids, { int i; - down(&adb_handler_sem); + mutex_lock(&adb_handler_mutex); ids->nids = 0; for (i = 1; i < 16; i++) { if ((adb_handler[i].original_address == default_id) && @@ -472,7 +472,7 @@ adb_register(int default_id, int handler_id, struct adb_ids *ids, ids->id[ids->nids++] = i; } } - up(&adb_handler_sem); + mutex_unlock(&adb_handler_mutex); return ids->nids; } @@ -481,7 +481,7 @@ adb_unregister(int index) { int ret = -ENODEV; - down(&adb_handler_sem); + mutex_lock(&adb_handler_mutex); write_lock_irq(&adb_handler_lock); if (adb_handler[index].handler) { while(adb_handler[index].busy) { @@ -493,7 +493,7 @@ adb_unregister(int index) adb_handler[index].handler = NULL; } write_unlock_irq(&adb_handler_lock); - up(&adb_handler_sem); + mutex_unlock(&adb_handler_mutex); return ret; } @@ -557,19 +557,19 @@ adb_try_handler_change(int address, int new_id) { int ret; - down(&adb_handler_sem); + mutex_lock(&adb_handler_mutex); ret = try_handler_change(address, new_id); - up(&adb_handler_sem); + mutex_unlock(&adb_handler_mutex); return ret; } int adb_get_infos(int address, int *original_address, int *handler_id) { - down(&adb_handler_sem); + mutex_lock(&adb_handler_mutex); *original_address = adb_handler[address].original_address; *handler_id = adb_handler[address].handler_id; - up(&adb_handler_sem); + mutex_unlock(&adb_handler_mutex); return (*original_address != 0); } @@ -628,10 +628,10 @@ do_adb_query(struct adb_request *req) case ADB_QUERY_GETDEVINFO: if (req->nbytes < 3) break; - down(&adb_handler_sem); + mutex_lock(&adb_handler_mutex); req->reply[0] = adb_handler[req->data[2]].original_address; req->reply[1] = adb_handler[req->data[2]].handler_id; - up(&adb_handler_sem); + mutex_unlock(&adb_handler_mutex); req->complete = 1; req->reply_len = 2; adb_write_done(req); -- cgit v1.2.3-70-g09d2 From 0a6db7dc49b91875ff015934df3e85b8785f2294 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 5 May 2008 00:33:58 -0700 Subject: sbus: Fix bpp driver build. Using the variable name 'dev_name' in the top-level namespace is a bad idea. This conflicts with linux/device.h's inline function of the same name. Signed-off-by: David S. Miller --- drivers/sbus/char/bpp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/sbus/char/bpp.c b/drivers/sbus/char/bpp.c index 4fab0c23814..b87037ec980 100644 --- a/drivers/sbus/char/bpp.c +++ b/drivers/sbus/char/bpp.c @@ -41,7 +41,7 @@ #define BPP_DELAY 100 static const unsigned BPP_MAJOR = LP_MAJOR; -static const char* dev_name = "bpp"; +static const char *bpp_dev_name = "bpp"; /* When switching from compatibility to a mode where I can read, try the following mode first. */ -- cgit v1.2.3-70-g09d2 From c17f888f8fc2e47e2b4a51424f8ccf564ae87576 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 5 May 2008 01:04:06 -0700 Subject: irda: fix !PNP support in drivers/net/irda/nsc-ircc.c x86.git testing found the following build failure in latest -git: drivers/built-in.o: In function `nsc_ircc_pnp_probe': nsc-ircc.c:(.text+0xdf1b6): undefined reference to `pnp_get_resource' nsc-ircc.c:(.text+0xdf1d4): undefined reference to `pnp_get_resource' nsc-ircc.c:(.text+0xdf1ee): undefined reference to `pnp_get_resource' nsc-ircc.c:(.text+0xdf237): undefined reference to `pnp_get_resource' nsc-ircc.c:(.text+0xdf24c): undefined reference to `pnp_get_resource' drivers/built-in.o:nsc-ircc.c:(.text+0xdf266): more undefined references to `pnp_get_resource' follow make: *** [.tmp_vmlinux1] Error 1 triggered via this config: http://redhat.com/~mingo/misc/config-Sat_May__3_20_53_13_CEST_2008.bad while generally most users will have PNP enabled, drivers can support non-PNP build mode too - and most drivers implement it. That is typically done by providing a dummy pnp_driver structure that will not probe anything. The fallback routines in the driver will handle this dumber mode of operation too. This patch implements that. I have not tested whether this actually works on real hardware so take care. It does resolve the build bug. [ Another solution that is used by a few drivers is to exclude the driver in the Kconfig if PNP is disabled, via "depends on PNP", but this would limit the availability of the driver needlessly. ] Signed-off-by: Ingo Molnar Signed-off-by: David S. Miller --- drivers/net/irda/nsc-ircc.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/net/irda/nsc-ircc.c b/drivers/net/irda/nsc-ircc.c index a873d2b315c..a7714da7c28 100644 --- a/drivers/net/irda/nsc-ircc.c +++ b/drivers/net/irda/nsc-ircc.c @@ -100,7 +100,9 @@ static int nsc_ircc_probe_39x(nsc_chip_t *chip, chipio_t *info); static int nsc_ircc_init_108(nsc_chip_t *chip, chipio_t *info); static int nsc_ircc_init_338(nsc_chip_t *chip, chipio_t *info); static int nsc_ircc_init_39x(nsc_chip_t *chip, chipio_t *info); +#ifdef CONFIG_PNP static int nsc_ircc_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *id); +#endif /* These are the known NSC chips */ static nsc_chip_t chips[] = { @@ -156,9 +158,11 @@ static const struct pnp_device_id nsc_ircc_pnp_table[] = { MODULE_DEVICE_TABLE(pnp, nsc_ircc_pnp_table); static struct pnp_driver nsc_ircc_pnp_driver = { +#ifdef CONFIG_PNP .name = "nsc-ircc", .id_table = nsc_ircc_pnp_table, .probe = nsc_ircc_pnp_probe, +#endif }; /* Some prototypes */ @@ -916,6 +920,7 @@ static int nsc_ircc_probe_39x(nsc_chip_t *chip, chipio_t *info) return 0; } +#ifdef CONFIG_PNP /* PNP probing */ static int nsc_ircc_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *id) { @@ -952,6 +957,7 @@ static int nsc_ircc_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *i return 0; } +#endif /* * Function nsc_ircc_setup (info) -- cgit v1.2.3-70-g09d2 From 7a1aa309f21ea2f6c31f364341e4027ecf4e79bc Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 5 May 2008 01:06:54 -0700 Subject: irda: fix !PNP support for drivers/net/irda/smsc-ircc2.c x86.git testing found this build bug on v2.6.26-rc1: ERROR: "pnp_get_resource" [drivers/net/irda/smsc-ircc2.ko] undefined! make[1]: *** [__modpost] Error 1 make: *** [modules] Error 2 the driver did not anticipate the case of !CONFIG_PNP which is rare but still possible. Instead of restricting the driver to PNP-only in the Kconfig space, add the (trivial) dummy struct pnp_driver - this is that other drivers use in the !PNP case too. The driver itself can in theory be initialized on !PNP too in certain cases, via smsc_ircc_legacy_probe(). Patch only minimally build tested, i dont have this hardware. Signed-off-by: Ingo Molnar Signed-off-by: David S. Miller --- drivers/net/irda/smsc-ircc2.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/irda/smsc-ircc2.c b/drivers/net/irda/smsc-ircc2.c index 1f26da761e9..cfe0194fef7 100644 --- a/drivers/net/irda/smsc-ircc2.c +++ b/drivers/net/irda/smsc-ircc2.c @@ -376,6 +376,7 @@ MODULE_DEVICE_TABLE(pnp, smsc_ircc_pnp_table); static int pnp_driver_registered; +#ifdef CONFIG_PNP static int __init smsc_ircc_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) { @@ -402,7 +403,9 @@ static struct pnp_driver smsc_ircc_pnp_driver = { .id_table = smsc_ircc_pnp_table, .probe = smsc_ircc_pnp_probe, }; - +#else /* CONFIG_PNP */ +static struct pnp_driver smsc_ircc_pnp_driver; +#endif /******************************************************************************* * -- cgit v1.2.3-70-g09d2 From 001fddf5fdcfe2c08ac9c4e5ca80c5e5698363bb Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Thu, 24 Apr 2008 16:57:23 -0500 Subject: kgdb: trivial sparse fixes in kgdb test-suite Shadowed variable and integer as NULL pointer fixes: drivers/misc/kgdbts.c:877:6: warning: symbol 'sys_open_test' shadows an earlier one drivers/misc/kgdbts.c:537:27: originally declared here drivers/misc/kgdbts.c:378:22: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:386:22: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:468:30: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:472:15: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:502:30: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:506:30: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:509:30: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:523:20: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:527:20: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:530:15: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:541:21: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:545:21: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:548:15: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:559:30: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:563:15: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:573:16: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:574:19: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:578:15: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:588:16: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:589:19: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:593:15: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:602:16: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:604:15: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:925:3: warning: Using plain integer as NULL pointer drivers/misc/kgdbts.c:938:3: warning: Using plain integer as NULL pointer Signed-off-by: Harvey Harrison Signed-off-by: Jason Wessel --- drivers/misc/kgdbts.c | 60 +++++++++++++++++++++++++-------------------------- 1 file changed, 30 insertions(+), 30 deletions(-) (limited to 'drivers') diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c index 30a1af857c7..879fcbde32c 100644 --- a/drivers/misc/kgdbts.c +++ b/drivers/misc/kgdbts.c @@ -375,7 +375,7 @@ static void emul_sstep_get(char *arg) break; case 1: /* set breakpoint */ - break_helper("Z0", 0, sstep_addr); + break_helper("Z0", NULL, sstep_addr); break; case 2: /* Continue */ @@ -383,7 +383,7 @@ static void emul_sstep_get(char *arg) break; case 3: /* Clear breakpoint */ - break_helper("z0", 0, sstep_addr); + break_helper("z0", NULL, sstep_addr); break; default: eprintk("kgdbts: ERROR failed sstep get emulation\n"); @@ -465,11 +465,11 @@ static struct test_struct sw_breakpoint_test[] = { { "?", "S0*" }, /* Clear break points */ { "kgdbts_break_test", "OK", sw_break, }, /* set sw breakpoint */ { "c", "T0*", }, /* Continue */ - { "g", "kgdbts_break_test", 0, check_and_rewind_pc }, + { "g", "kgdbts_break_test", NULL, check_and_rewind_pc }, { "write", "OK", write_regs }, { "kgdbts_break_test", "OK", sw_rem_break }, /*remove breakpoint */ { "D", "OK" }, /* Detach */ - { "D", "OK", 0, got_break }, /* If the test worked we made it here */ + { "D", "OK", NULL, got_break }, /* On success we made it here */ { "", "" }, }; @@ -499,14 +499,14 @@ static struct test_struct singlestep_break_test[] = { { "?", "S0*" }, /* Clear break points */ { "kgdbts_break_test", "OK", sw_break, }, /* set sw breakpoint */ { "c", "T0*", }, /* Continue */ - { "g", "kgdbts_break_test", 0, check_and_rewind_pc }, + { "g", "kgdbts_break_test", NULL, check_and_rewind_pc }, { "write", "OK", write_regs }, /* Write registers */ { "kgdbts_break_test", "OK", sw_rem_break }, /*remove breakpoint */ { "s", "T0*", emul_sstep_get, emul_sstep_put }, /* Single step */ - { "g", "kgdbts_break_test", 0, check_single_step }, + { "g", "kgdbts_break_test", NULL, check_single_step }, { "kgdbts_break_test", "OK", sw_break, }, /* set sw breakpoint */ { "c", "T0*", }, /* Continue */ - { "g", "kgdbts_break_test", 0, check_and_rewind_pc }, + { "g", "kgdbts_break_test", NULL, check_and_rewind_pc }, { "write", "OK", write_regs }, /* Write registers */ { "D", "OK" }, /* Remove all breakpoints and continues */ { "", "" }, @@ -520,14 +520,14 @@ static struct test_struct do_fork_test[] = { { "?", "S0*" }, /* Clear break points */ { "do_fork", "OK", sw_break, }, /* set sw breakpoint */ { "c", "T0*", }, /* Continue */ - { "g", "do_fork", 0, check_and_rewind_pc }, /* check location */ + { "g", "do_fork", NULL, check_and_rewind_pc }, /* check location */ { "write", "OK", write_regs }, /* Write registers */ { "do_fork", "OK", sw_rem_break }, /*remove breakpoint */ { "s", "T0*", emul_sstep_get, emul_sstep_put }, /* Single step */ - { "g", "do_fork", 0, check_single_step }, + { "g", "do_fork", NULL, check_single_step }, { "do_fork", "OK", sw_break, }, /* set sw breakpoint */ { "7", "T0*", skip_back_repeat_test }, /* Loop based on repeat_test */ - { "D", "OK", 0, final_ack_set }, /* detach and unregister I/O */ + { "D", "OK", NULL, final_ack_set }, /* detach and unregister I/O */ { "", "" }, }; @@ -538,14 +538,14 @@ static struct test_struct sys_open_test[] = { { "?", "S0*" }, /* Clear break points */ { "sys_open", "OK", sw_break, }, /* set sw breakpoint */ { "c", "T0*", }, /* Continue */ - { "g", "sys_open", 0, check_and_rewind_pc }, /* check location */ + { "g", "sys_open", NULL, check_and_rewind_pc }, /* check location */ { "write", "OK", write_regs }, /* Write registers */ { "sys_open", "OK", sw_rem_break }, /*remove breakpoint */ { "s", "T0*", emul_sstep_get, emul_sstep_put }, /* Single step */ - { "g", "sys_open", 0, check_single_step }, + { "g", "sys_open", NULL, check_single_step }, { "sys_open", "OK", sw_break, }, /* set sw breakpoint */ { "7", "T0*", skip_back_repeat_test }, /* Loop based on repeat_test */ - { "D", "OK", 0, final_ack_set }, /* detach and unregister I/O */ + { "D", "OK", NULL, final_ack_set }, /* detach and unregister I/O */ { "", "" }, }; @@ -556,11 +556,11 @@ static struct test_struct hw_breakpoint_test[] = { { "?", "S0*" }, /* Clear break points */ { "kgdbts_break_test", "OK", hw_break, }, /* set hw breakpoint */ { "c", "T0*", }, /* Continue */ - { "g", "kgdbts_break_test", 0, check_and_rewind_pc }, + { "g", "kgdbts_break_test", NULL, check_and_rewind_pc }, { "write", "OK", write_regs }, { "kgdbts_break_test", "OK", hw_rem_break }, /*remove breakpoint */ { "D", "OK" }, /* Detach */ - { "D", "OK", 0, got_break }, /* If the test worked we made it here */ + { "D", "OK", NULL, got_break }, /* On success we made it here */ { "", "" }, }; @@ -570,12 +570,12 @@ static struct test_struct hw_breakpoint_test[] = { static struct test_struct hw_write_break_test[] = { { "?", "S0*" }, /* Clear break points */ { "hw_break_val", "OK", hw_write_break, }, /* set hw breakpoint */ - { "c", "T0*", 0, got_break }, /* Continue */ - { "g", "silent", 0, check_and_rewind_pc }, + { "c", "T0*", NULL, got_break }, /* Continue */ + { "g", "silent", NULL, check_and_rewind_pc }, { "write", "OK", write_regs }, { "hw_break_val", "OK", hw_rem_write_break }, /*remove breakpoint */ { "D", "OK" }, /* Detach */ - { "D", "OK", 0, got_break }, /* If the test worked we made it here */ + { "D", "OK", NULL, got_break }, /* On success we made it here */ { "", "" }, }; @@ -585,12 +585,12 @@ static struct test_struct hw_write_break_test[] = { static struct test_struct hw_access_break_test[] = { { "?", "S0*" }, /* Clear break points */ { "hw_break_val", "OK", hw_access_break, }, /* set hw breakpoint */ - { "c", "T0*", 0, got_break }, /* Continue */ - { "g", "silent", 0, check_and_rewind_pc }, + { "c", "T0*", NULL, got_break }, /* Continue */ + { "g", "silent", NULL, check_and_rewind_pc }, { "write", "OK", write_regs }, { "hw_break_val", "OK", hw_rem_access_break }, /*remove breakpoint */ { "D", "OK" }, /* Detach */ - { "D", "OK", 0, got_break }, /* If the test worked we made it here */ + { "D", "OK", NULL, got_break }, /* On success we made it here */ { "", "" }, }; @@ -599,9 +599,9 @@ static struct test_struct hw_access_break_test[] = { */ static struct test_struct nmi_sleep_test[] = { { "?", "S0*" }, /* Clear break points */ - { "c", "T0*", 0, got_break }, /* Continue */ + { "c", "T0*", NULL, got_break }, /* Continue */ { "D", "OK" }, /* Detach */ - { "D", "OK", 0, got_break }, /* If the test worked we made it here */ + { "D", "OK", NULL, got_break }, /* On success we made it here */ { "", "" }, }; @@ -874,15 +874,15 @@ static void kgdbts_run_tests(void) { char *ptr; int fork_test = 0; - int sys_open_test = 0; + int do_sys_open_test = 0; int nmi_sleep = 0; ptr = strstr(config, "F"); if (ptr) - fork_test = simple_strtol(ptr+1, NULL, 10); + fork_test = simple_strtol(ptr + 1, NULL, 10); ptr = strstr(config, "S"); if (ptr) - sys_open_test = simple_strtol(ptr+1, NULL, 10); + do_sys_open_test = simple_strtol(ptr + 1, NULL, 10); ptr = strstr(config, "N"); if (ptr) nmi_sleep = simple_strtol(ptr+1, NULL, 10); @@ -922,7 +922,7 @@ static void kgdbts_run_tests(void) repeat_test = fork_test; printk(KERN_INFO "kgdbts:RUN do_fork for %i breakpoints\n", repeat_test); - kthread_run(kgdbts_unreg_thread, 0, "kgdbts_unreg"); + kthread_run(kgdbts_unreg_thread, NULL, "kgdbts_unreg"); run_do_fork_test(); return; } @@ -931,11 +931,11 @@ static void kgdbts_run_tests(void) * executed because a kernel thread will be spawned at the very * end to unregister the debug hooks. */ - if (sys_open_test) { - repeat_test = sys_open_test; + if (do_sys_open_test) { + repeat_test = do_sys_open_test; printk(KERN_INFO "kgdbts:RUN sys_open for %i breakpoints\n", repeat_test); - kthread_run(kgdbts_unreg_thread, 0, "kgdbts_unreg"); + kthread_run(kgdbts_unreg_thread, NULL, "kgdbts_unreg"); run_sys_open_test(); return; } -- cgit v1.2.3-70-g09d2 From 7cfcd985d36031459cc64e3843ea36a4d801097d Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Thu, 24 Apr 2008 16:57:23 -0500 Subject: kgdb: 1000 loops for the single step test in kgdbts The single step test is not terribly costly and it should be able to pass at 1000 loops successfully in under 1 second. A non-kgdb timing regression was found using this test, but it did not occur frequently because by default the test was only executed a single time. This patch changes the default for the single step test to 1000 iterations and allows for individual configuration of the single step test to further exercise the kgdb subsystem when needed. Signed-off-by: Jason Wessel --- drivers/misc/kgdbts.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/misc/kgdbts.c b/drivers/misc/kgdbts.c index 879fcbde32c..fa394104339 100644 --- a/drivers/misc/kgdbts.c +++ b/drivers/misc/kgdbts.c @@ -47,6 +47,7 @@ * to test the HW NMI watchdog * F## = Break at do_fork for ## iterations * S## = Break at sys_open for ## iterations + * I## = Run the single step test ## iterations * * NOTE: that the do_fork and sys_open tests are mutually exclusive. * @@ -875,7 +876,9 @@ static void kgdbts_run_tests(void) char *ptr; int fork_test = 0; int do_sys_open_test = 0; + int sstep_test = 1000; int nmi_sleep = 0; + int i; ptr = strstr(config, "F"); if (ptr) @@ -886,6 +889,9 @@ static void kgdbts_run_tests(void) ptr = strstr(config, "N"); if (ptr) nmi_sleep = simple_strtol(ptr+1, NULL, 10); + ptr = strstr(config, "I"); + if (ptr) + sstep_test = simple_strtol(ptr+1, NULL, 10); /* required internal KGDB tests */ v1printk("kgdbts:RUN plant and detach test\n"); @@ -894,8 +900,13 @@ static void kgdbts_run_tests(void) run_breakpoint_test(0); v1printk("kgdbts:RUN bad memory access test\n"); run_bad_read_test(); - v1printk("kgdbts:RUN singlestep breakpoint test\n"); - run_singlestep_break_test(); + v1printk("kgdbts:RUN singlestep test %i iterations\n", sstep_test); + for (i = 0; i < sstep_test; i++) { + run_singlestep_break_test(); + if (i % 100 == 0) + v1printk("kgdbts:RUN singlestep [%i/%i]\n", + i, sstep_test); + } /* ===Optional tests=== */ -- cgit v1.2.3-70-g09d2 From ab1a852128d6f0677999eecbf6d04bf9f6fe9a9a Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 5 May 2008 21:15:19 +0200 Subject: m68k: Fix falconide `data_adr' typo commit 9567b349f7e7dd7e2483db99ee8e4a6fe0caca38 Author: Bartlomiej Zolnierkiewicz Date: Mon Apr 28 23:44:36 2008 +0200 ide: merge ->atapi_*put_bytes and ->ata_*put_data methods introduced a typo (`data_adr' instead of `data_addr'), leading to a compile failure. Signed-off-by: Geert Uytterhoeven Signed-off-by: Linus Torvalds --- drivers/ide/legacy/falconide.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/ide/legacy/falconide.c b/drivers/ide/legacy/falconide.c index 83555ca513b..9e449a0c623 100644 --- a/drivers/ide/legacy/falconide.c +++ b/drivers/ide/legacy/falconide.c @@ -61,7 +61,7 @@ static void falconide_output_data(ide_drive_t *drive, struct request *rq, unsigned long data_addr = drive->hwif->io_ports.data_addr; if (drive->media == ide_disk && rq && rq->cmd_type == REQ_TYPE_FS) - return outsw(data_adr, buf, (len + 1) / 2); + return outsw(data_addr, buf, (len + 1) / 2); outsw_swapw(data_addr, buf, (len + 1) / 2); } -- cgit v1.2.3-70-g09d2 From 63a59fa7a74fccff64dbf7d9230bd9d91bddead4 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 5 May 2008 21:15:48 +0200 Subject: m68k: serial167 missing return value in cy_put_char() commit a5b08c66194fba02a865b397579b7204688bcb1e Author: Alan Cox Date: Wed Apr 30 00:54:05 2008 -0700 serial167: switch to int put_char method missed one case when adding return values. Signed-off-by: Geert Uytterhoeven Signed-off-by: Linus Torvalds --- drivers/char/serial167.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/serial167.c b/drivers/char/serial167.c index fd2db07a50f..3b23270eaa6 100644 --- a/drivers/char/serial167.c +++ b/drivers/char/serial167.c @@ -1073,7 +1073,7 @@ static int cy_put_char(struct tty_struct *tty, unsigned char ch) return 0; if (!info->xmit_buf) - return; + return 0; local_irq_save(flags); if (info->xmit_cnt >= PAGE_SIZE - 1) { -- cgit v1.2.3-70-g09d2 From 4933d07531711e399d8d578036aa9fc1be2f9b20 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 5 May 2008 21:16:13 +0200 Subject: m68k: drivers/input/serio/hp_sdc.c needs drivers/input/serio/hp_sdc.c: In function 'hp_sdc_take': drivers/input/serio/hp_sdc.c:198: error: implicit declaration of function 'up' Signed-off-by: Geert Uytterhoeven Signed-off-by: Linus Torvalds --- drivers/input/serio/hp_sdc.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c index 02b3ad8c082..edfedd9a166 100644 --- a/drivers/input/serio/hp_sdc.c +++ b/drivers/input/serio/hp_sdc.c @@ -69,6 +69,7 @@ #include #include #include +#include #include #include -- cgit v1.2.3-70-g09d2 From 48fc8de9cd093b8c9e2cfa339421862bae3a6cad Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 5 May 2008 21:27:21 +0200 Subject: CONFIG_SCSI_MAC_ESP needs CONFIG_SCSI_SPI_ATTRS The new mac_esp scsi driver needs CONFIG_SCSI_SPI_ATTRS, just like all other drivers using the new esp_scsi core. Signed-off-by: Geert Uytterhoeven Signed-off-by: Linus Torvalds --- drivers/scsi/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 46d7e400c8b..81ccbd7f9e3 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -1679,6 +1679,7 @@ config MAC_SCSI config SCSI_MAC_ESP tristate "Macintosh NCR53c9[46] SCSI" depends on MAC && SCSI + select SCSI_SPI_ATTRS help This is the NCR 53c9x SCSI controller found on most of the 68040 based Macintoshes. -- cgit v1.2.3-70-g09d2 From 17aa7e034416e3080bc57a786d09ba0a4a044561 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Mon, 5 May 2008 13:54:19 +1000 Subject: dev_name introduction fall out fix Commit 06916639e2fed9ee475efef2747a1b7429f8fe76 ("driver-core: add dev_name() to help transition away from using bus_id") added a static inline dev_name() and used it in dev_printk. Unfortunately, drivers/edac/edac_core.h defines a macro called dev_name(). Rename the latter. Diagnosis by Tony Breeds and Michael Ellerman. Signed-off-by: Stephen Rothwell Acked-by: Doug Thompson Signed-off-by: Linus Torvalds --- drivers/edac/edac_core.h | 2 +- drivers/edac/edac_device.c | 6 +++--- drivers/edac/edac_mc.c | 6 +++--- drivers/edac/edac_pci.c | 6 +++--- 4 files changed, 10 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h index a9aa845dbe7..b27b13c5eb5 100644 --- a/drivers/edac/edac_core.h +++ b/drivers/edac/edac_core.h @@ -97,7 +97,7 @@ extern int edac_debug_level; #define PCI_VEND_DEV(vend, dev) PCI_VENDOR_ID_ ## vend, \ PCI_DEVICE_ID_ ## vend ## _ ## dev -#define dev_name(dev) (dev)->dev_name +#define edac_dev_name(dev) (dev)->dev_name /* memory devices */ enum dev_type { diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c index 63372fa7ecf..5fcd3d89c75 100644 --- a/drivers/edac/edac_device.c +++ b/drivers/edac/edac_device.c @@ -333,7 +333,7 @@ static int add_edac_dev_to_global_list(struct edac_device_ctl_info *edac_dev) fail0: edac_printk(KERN_WARNING, EDAC_MC, "%s (%s) %s %s already assigned %d\n", - rover->dev->bus_id, dev_name(rover), + rover->dev->bus_id, edac_dev_name(rover), rover->mod_name, rover->ctl_name, rover->dev_idx); return 1; @@ -538,7 +538,7 @@ int edac_device_add_device(struct edac_device_ctl_info *edac_dev) "'%s': DEV '%s' (%s)\n", edac_dev->mod_name, edac_dev->ctl_name, - dev_name(edac_dev), + edac_dev_name(edac_dev), edac_op_state_to_string(edac_dev->op_state)); mutex_unlock(&device_ctls_mutex); @@ -599,7 +599,7 @@ struct edac_device_ctl_info *edac_device_del_device(struct device *dev) edac_printk(KERN_INFO, EDAC_MC, "Removed device %d for %s %s: DEV %s\n", edac_dev->dev_idx, - edac_dev->mod_name, edac_dev->ctl_name, dev_name(edac_dev)); + edac_dev->mod_name, edac_dev->ctl_name, edac_dev_name(edac_dev)); return edac_dev; } diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index a4cf1645f58..d110392d48f 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -402,7 +402,7 @@ static int add_mc_to_global_list(struct mem_ctl_info *mci) fail0: edac_printk(KERN_WARNING, EDAC_MC, "%s (%s) %s %s already assigned %d\n", p->dev->bus_id, - dev_name(mci), p->mod_name, p->ctl_name, p->mc_idx); + edac_dev_name(mci), p->mod_name, p->ctl_name, p->mc_idx); return 1; fail1: @@ -517,7 +517,7 @@ int edac_mc_add_mc(struct mem_ctl_info *mci) /* Report action taken */ edac_mc_printk(mci, KERN_INFO, "Giving out device to '%s' '%s':" - " DEV %s\n", mci->mod_name, mci->ctl_name, dev_name(mci)); + " DEV %s\n", mci->mod_name, mci->ctl_name, edac_dev_name(mci)); mutex_unlock(&mem_ctls_mutex); return 0; @@ -565,7 +565,7 @@ struct mem_ctl_info *edac_mc_del_mc(struct device *dev) edac_printk(KERN_INFO, EDAC_MC, "Removed device %d for %s %s: DEV %s\n", mci->mc_idx, - mci->mod_name, mci->ctl_name, dev_name(mci)); + mci->mod_name, mci->ctl_name, edac_dev_name(mci)); return mci; } diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c index 9b24340b52e..22ec9d5d431 100644 --- a/drivers/edac/edac_pci.c +++ b/drivers/edac/edac_pci.c @@ -150,7 +150,7 @@ static int add_edac_pci_to_global_list(struct edac_pci_ctl_info *pci) fail0: edac_printk(KERN_WARNING, EDAC_PCI, "%s (%s) %s %s already assigned %d\n", - rover->dev->bus_id, dev_name(rover), + rover->dev->bus_id, edac_dev_name(rover), rover->mod_name, rover->ctl_name, rover->pci_idx); return 1; @@ -360,7 +360,7 @@ int edac_pci_add_device(struct edac_pci_ctl_info *pci, int edac_idx) " DEV '%s' (%s)\n", pci->mod_name, pci->ctl_name, - dev_name(pci), edac_op_state_to_string(pci->op_state)); + edac_dev_name(pci), edac_op_state_to_string(pci->op_state)); mutex_unlock(&edac_pci_ctls_mutex); return 0; @@ -415,7 +415,7 @@ struct edac_pci_ctl_info *edac_pci_del_device(struct device *dev) edac_printk(KERN_INFO, EDAC_PCI, "Removed device %d for %s %s: DEV %s\n", - pci->pci_idx, pci->mod_name, pci->ctl_name, dev_name(pci)); + pci->pci_idx, pci->mod_name, pci->ctl_name, edac_dev_name(pci)); return pci; } -- cgit v1.2.3-70-g09d2 From cf04690885972eaba830ee761de545a6956197e6 Mon Sep 17 00:00:00 2001 From: Stefan Roscher Date: Mon, 5 May 2008 15:51:49 -0700 Subject: IB/ehca: Fix function return types Also remove duplicate assignment of local_ca_ack_delay and change min_t check for local_ca_ack_delay to u8 instead of int. Signed-off-by: Stefan Roscher Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ehca/ehca_hca.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c index 2515cbde7e6..bc3b37d2070 100644 --- a/drivers/infiniband/hw/ehca/ehca_hca.c +++ b/drivers/infiniband/hw/ehca/ehca_hca.c @@ -101,7 +101,6 @@ int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props) props->max_ee = limit_uint(rblock->max_rd_ee_context); props->max_rdd = limit_uint(rblock->max_rd_domain); props->max_fmr = limit_uint(rblock->max_mr); - props->local_ca_ack_delay = limit_uint(rblock->local_ca_ack_delay); props->max_qp_rd_atom = limit_uint(rblock->max_rr_qp); props->max_ee_rd_atom = limit_uint(rblock->max_rr_ee_context); props->max_res_rd_atom = limit_uint(rblock->max_rr_hca); @@ -115,7 +114,7 @@ int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props) } props->max_pkeys = 16; - props->local_ca_ack_delay = limit_uint(rblock->local_ca_ack_delay); + props->local_ca_ack_delay = min_t(u8, rblock->local_ca_ack_delay, 255); props->max_raw_ipv6_qp = limit_uint(rblock->max_raw_ipv6_qp); props->max_raw_ethy_qp = limit_uint(rblock->max_raw_ethy_qp); props->max_mcast_grp = limit_uint(rblock->max_mcast_grp); @@ -136,7 +135,7 @@ query_device1: return ret; } -static int map_mtu(struct ehca_shca *shca, u32 fw_mtu) +static enum ib_mtu map_mtu(struct ehca_shca *shca, u32 fw_mtu) { switch (fw_mtu) { case 0x1: @@ -156,7 +155,7 @@ static int map_mtu(struct ehca_shca *shca, u32 fw_mtu) } } -static int map_number_of_vls(struct ehca_shca *shca, u32 vl_cap) +static u8 map_number_of_vls(struct ehca_shca *shca, u32 vl_cap) { switch (vl_cap) { case 0x1: -- cgit v1.2.3-70-g09d2 From c5057ddccbcb4bf363af628d7963a7475f4114a7 Mon Sep 17 00:00:00 2001 From: Oren Duer Date: Mon, 5 May 2008 15:56:52 -0700 Subject: mlx4_core: Support creation of FMRs with pages smaller than 4K Don't hard code a test against a minimum page shift of 12, since the device may support smaller pages. Test against the actual smallest page size from the device capabilities. Signed-off-by: Oren Duer Signed-off-by: Jack Morgenstein Signed-off-by: Roland Dreier --- drivers/net/mlx4/mr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/mlx4/mr.c b/drivers/net/mlx4/mr.c index cb46446b269..03a9abcce52 100644 --- a/drivers/net/mlx4/mr.c +++ b/drivers/net/mlx4/mr.c @@ -551,7 +551,7 @@ int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages, u64 mtt_seg; int err = -ENOMEM; - if (page_shift < 12 || page_shift >= 32) + if (page_shift < (ffs(dev->caps.page_size_cap) - 1) || page_shift >= 32) return -EINVAL; /* All MTTs must fit in the same page */ -- cgit v1.2.3-70-g09d2 From 1da5ea1a8bf4ddb82831528223c853821cb1c9ab Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 6 May 2008 00:04:47 -0700 Subject: iwlwifi: make IWLWIFI a tristate IWLWIFI should be a tristate so that if IWLCORE and/or IWL3945 are m and none of them is y kbuild doesn't create an empty drivers/net/wireless/built-in.o This patch also removes the pointless "default n". Signed-off-by: Adrian Bunk Signed-off-by: David S. Miller --- drivers/net/wireless/iwlwifi/Kconfig | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/Kconfig b/drivers/net/wireless/iwlwifi/Kconfig index d5b7a76fcaa..62fb89d8231 100644 --- a/drivers/net/wireless/iwlwifi/Kconfig +++ b/drivers/net/wireless/iwlwifi/Kconfig @@ -1,6 +1,5 @@ config IWLWIFI - bool - default n + tristate config IWLCORE tristate "Intel Wireless Wifi Core" -- cgit v1.2.3-70-g09d2 From 78ab88f04f44bed566d51dce0c7cbfeff6449a06 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 1 May 2008 23:41:41 +0900 Subject: libata: improve post-reset device ready test Some controllers (jmb and inic162x) use 0x77 and 0x7f to indicate that the device isn't ready yet. It looks like they use 0xff if device presence is detected but connection isn't established. 0x77 or 0x7f after connection is established and use the value from signature FIS after receiving it. This patch implements ata_check_ready(), which takes TF status value and determines whether the port is ready or not considering the above and other conditions, and use it in @check_ready() functions. This is safe as both 0x77 and 0x7f aren't valid ready status value even though they have BSY bit cleared. This fixes hot plug detection failures which can be triggered with certain drives if they aren't already spun up when the data connector is hot plugged. Tested on sil, sil24, ahci (jmb/ich), piix and inic162x combined with eight drives from all major vendors. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 4 +--- drivers/ata/libata-sff.c | 6 +----- include/linux/libata.h | 15 +++++++++++++++ 3 files changed, 17 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 8cace9aa9c0..97f83fb2ee2 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1267,9 +1267,7 @@ static int ahci_check_ready(struct ata_link *link) void __iomem *port_mmio = ahci_port_base(link->ap); u8 status = readl(port_mmio + PORT_TFDATA) & 0xFF; - if (!(status & ATA_BUSY)) - return 1; - return 0; + return ata_check_ready(status); } static int ahci_softreset(struct ata_link *link, unsigned int *class, diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 2ec65a8fda7..3c2d2289f85 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -314,11 +314,7 @@ static int ata_sff_check_ready(struct ata_link *link) { u8 status = link->ap->ops->sff_check_status(link->ap); - if (!(status & ATA_BUSY)) - return 1; - if (status == 0xff) - return -ENODEV; - return 0; + return ata_check_ready(status); } /** diff --git a/include/linux/libata.h b/include/linux/libata.h index d1dfe872ee3..95e6159b44c 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1381,6 +1381,21 @@ static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host) return *(struct ata_port **)&host->hostdata[0]; } +static inline int ata_check_ready(u8 status) +{ + /* Some controllers report 0x77 or 0x7f during intermediate + * not-ready stages. + */ + if (status == 0x77 || status == 0x7f) + return 0; + + /* 0xff indicates either no device or device not ready */ + if (status == 0xff) + return -ENODEV; + + return !(status & ATA_BUSY); +} + /************************************************************************** * PMP - drivers/ata/libata-pmp.c -- cgit v1.2.3-70-g09d2 From cb6716c879ecf49e2af344926c6a476821812061 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 1 May 2008 10:03:08 +0900 Subject: ata_piix: verify SIDPR access before enabling it On certain configurations (certain macbooks), even though all the conditions for SIDPR access described in the datasheet are met, actually reading those registers just returns 0 and have no effect on write. Verify SIDPR is actually working before enabling it. This is reported by Ryan Roth in bz#10512. Signed-off-by: Tejun Heo Cc: Ryan Roth Signed-off-by: Jeff Garzik --- drivers/ata/ata_piix.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index ea2c7649d39..a9027b8fbdd 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -1348,6 +1348,8 @@ static void __devinit piix_init_sidpr(struct ata_host *host) { struct pci_dev *pdev = to_pci_dev(host->dev); struct piix_host_priv *hpriv = host->private_data; + struct ata_device *dev0 = &host->ports[0]->link.device[0]; + u32 scontrol; int i; /* check for availability */ @@ -1366,6 +1368,29 @@ static void __devinit piix_init_sidpr(struct ata_host *host) return; hpriv->sidpr = pcim_iomap_table(pdev)[PIIX_SIDPR_BAR]; + + /* SCR access via SIDPR doesn't work on some configurations. + * Give it a test drive by inhibiting power save modes which + * we'll do anyway. + */ + scontrol = piix_sidpr_read(dev0, SCR_CONTROL); + + /* if IPM is already 3, SCR access is probably working. Don't + * un-inhibit power save modes as BIOS might have inhibited + * them for a reason. + */ + if ((scontrol & 0xf00) != 0x300) { + scontrol |= 0x300; + piix_sidpr_write(dev0, SCR_CONTROL, scontrol); + scontrol = piix_sidpr_read(dev0, SCR_CONTROL); + + if ((scontrol & 0xf00) != 0x300) { + dev_printk(KERN_INFO, host->dev, "SCR access via " + "SIDPR is available but doesn't work\n"); + return; + } + } + host->ports[0]->ops = &piix_sidpr_sata_ops; host->ports[1]->ops = &piix_sidpr_sata_ops; } -- cgit v1.2.3-70-g09d2 From 07ab85de4d960b6f39395e51c1853485ad120de5 Mon Sep 17 00:00:00 2001 From: Alek Du Date: Tue, 6 May 2008 21:31:41 +0800 Subject: libata: Add Intel SCH PATA driver This patch adds Intel SCH chipsets (AF82US15W, AF82US15L, AF82UL11L) PATA controller support. Signed-off-by: Alek Du Signed-off-by: Jeff Garzik --- drivers/ata/Kconfig | 9 +++ drivers/ata/Makefile | 1 + drivers/ata/pata_sch.c | 206 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 216 insertions(+) create mode 100644 drivers/ata/pata_sch.c (limited to 'drivers') diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 1c11df9a5f3..1a59f305f7d 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -697,6 +697,15 @@ config PATA_SCC If unsure, say N. +config PATA_SCH + tristate "Intel SCH PATA support" + depends on PCI + help + This option enables support for Intel SCH PATA on the Intel + SCH (US15W, US15L, UL11L) series host controllers. + + If unsure, say N. + config PATA_BF54X tristate "Blackfin 54x ATAPI support" depends on BF542 || BF548 || BF549 diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index b693d829383..674965fa326 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -67,6 +67,7 @@ obj-$(CONFIG_PATA_SIS) += pata_sis.o obj-$(CONFIG_PATA_TRIFLEX) += pata_triflex.o obj-$(CONFIG_PATA_IXP4XX_CF) += pata_ixp4xx_cf.o obj-$(CONFIG_PATA_SCC) += pata_scc.o +obj-$(CONFIG_PATA_SCH) += pata_sch.o obj-$(CONFIG_PATA_BF54X) += pata_bf54x.o obj-$(CONFIG_PATA_PLATFORM) += pata_platform.o obj-$(CONFIG_PATA_OF_PLATFORM) += pata_of_platform.o diff --git a/drivers/ata/pata_sch.c b/drivers/ata/pata_sch.c new file mode 100644 index 00000000000..c8cc027789f --- /dev/null +++ b/drivers/ata/pata_sch.c @@ -0,0 +1,206 @@ +/* + * pata_sch.c - Intel SCH PATA controllers + * + * Copyright (c) 2008 Alek Du + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License 2 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +/* + * Supports: + * Intel SCH (AF82US15W, AF82US15L, AF82UL11L) chipsets -- see spec at: + * http://download.intel.com/design/chipsets/embedded/datashts/319537.pdf + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DRV_NAME "pata_sch" +#define DRV_VERSION "0.2" + +/* see SCH datasheet page 351 */ +enum { + D0TIM = 0x80, /* Device 0 Timing Register */ + D1TIM = 0x84, /* Device 1 Timing Register */ + PM = 0x07, /* PIO Mode Bit Mask */ + MDM = (0x03 << 8), /* Multi-word DMA Mode Bit Mask */ + UDM = (0x07 << 16), /* Ultra DMA Mode Bit Mask */ + PPE = (1 << 30), /* Prefetch/Post Enable */ + USD = (1 << 31), /* Use Synchronous DMA */ +}; + +static int sch_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent); +static void sch_set_piomode(struct ata_port *ap, struct ata_device *adev); +static void sch_set_dmamode(struct ata_port *ap, struct ata_device *adev); + +static const struct pci_device_id sch_pci_tbl[] = { + /* Intel SCH PATA Controller */ + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SCH_IDE), 0 }, + { } /* terminate list */ +}; + +static struct pci_driver sch_pci_driver = { + .name = DRV_NAME, + .id_table = sch_pci_tbl, + .probe = sch_init_one, + .remove = ata_pci_remove_one, +#ifdef CONFIG_PM + .suspend = ata_pci_device_suspend, + .resume = ata_pci_device_resume, +#endif +}; + +static struct scsi_host_template sch_sht = { + ATA_BMDMA_SHT(DRV_NAME), +}; + +static struct ata_port_operations sch_pata_ops = { + .inherits = &ata_bmdma_port_ops, + .cable_detect = ata_cable_unknown, + .set_piomode = sch_set_piomode, + .set_dmamode = sch_set_dmamode, +}; + +static struct ata_port_info sch_port_info = { + .flags = 0, + .pio_mask = ATA_PIO4, /* pio0-4 */ + .mwdma_mask = ATA_MWDMA2, /* mwdma0-2 */ + .udma_mask = ATA_UDMA5, /* udma0-5 */ + .port_ops = &sch_pata_ops, +}; + +MODULE_AUTHOR("Alek Du "); +MODULE_DESCRIPTION("SCSI low-level driver for Intel SCH PATA controllers"); +MODULE_LICENSE("GPL"); +MODULE_DEVICE_TABLE(pci, sch_pci_tbl); +MODULE_VERSION(DRV_VERSION); + +/** + * sch_set_piomode - Initialize host controller PATA PIO timings + * @ap: Port whose timings we are configuring + * @adev: ATA device + * + * Set PIO mode for device, in host controller PCI config space. + * + * LOCKING: + * None (inherited from caller). + */ + +static void sch_set_piomode(struct ata_port *ap, struct ata_device *adev) +{ + unsigned int pio = adev->pio_mode - XFER_PIO_0; + struct pci_dev *dev = to_pci_dev(ap->host->dev); + unsigned int port = adev->devno ? D1TIM : D0TIM; + unsigned int data; + + pci_read_config_dword(dev, port, &data); + /* see SCH datasheet page 351 */ + /* set PIO mode */ + data &= ~(PM | PPE); + data |= pio; + /* enable PPE for block device */ + if (adev->class == ATA_DEV_ATA) + data |= PPE; + pci_write_config_dword(dev, port, data); +} + +/** + * sch_set_dmamode - Initialize host controller PATA DMA timings + * @ap: Port whose timings we are configuring + * @adev: ATA device + * + * Set MW/UDMA mode for device, in host controller PCI config space. + * + * LOCKING: + * None (inherited from caller). + */ + +static void sch_set_dmamode(struct ata_port *ap, struct ata_device *adev) +{ + unsigned int dma_mode = adev->dma_mode; + struct pci_dev *dev = to_pci_dev(ap->host->dev); + unsigned int port = adev->devno ? D1TIM : D0TIM; + unsigned int data; + + pci_read_config_dword(dev, port, &data); + /* see SCH datasheet page 351 */ + if (dma_mode >= XFER_UDMA_0) { + /* enable Synchronous DMA mode */ + data |= USD; + data &= ~UDM; + data |= (dma_mode - XFER_UDMA_0) << 16; + } else { /* must be MWDMA mode, since we masked SWDMA already */ + data &= ~(USD | MDM); + data |= (dma_mode - XFER_MW_DMA_0) << 8; + } + pci_write_config_dword(dev, port, data); +} + +/** + * sch_init_one - Register SCH ATA PCI device with kernel services + * @pdev: PCI device to register + * @ent: Entry in sch_pci_tbl matching with @pdev + * + * LOCKING: + * Inherited from PCI layer (may sleep). + * + * RETURNS: + * Zero on success, or -ERRNO value. + */ + +static int __devinit sch_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + static int printed_version; + const struct ata_port_info *ppi[] = { &sch_port_info, NULL }; + struct ata_host *host; + int rc; + + if (!printed_version++) + dev_printk(KERN_DEBUG, &pdev->dev, + "version " DRV_VERSION "\n"); + + /* enable device and prepare host */ + rc = pcim_enable_device(pdev); + if (rc) + return rc; + rc = ata_pci_sff_prepare_host(pdev, ppi, &host); + if (rc) + return rc; + pci_set_master(pdev); + return ata_pci_sff_activate_host(host, ata_sff_interrupt, &sch_sht); +} + +static int __init sch_init(void) +{ + return pci_register_driver(&sch_pci_driver); +} + +static void __exit sch_exit(void) +{ + pci_unregister_driver(&sch_pci_driver); +} + +module_init(sch_init); +module_exit(sch_exit); -- cgit v1.2.3-70-g09d2 From 8e7decdb8b132ee970a2636931b7653dec6af472 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 02:07:51 -0400 Subject: sata_mv more cosmetic changes More cosmetic changes; no code changes. -- try and improve consistency of naming. -- add missing _OFS to tails of register offset definitions. -- rename mv_setup_ifctl() to mv_setup_ifcfg(), since that's what it really does. -- remove/move some dead comments Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 122 ++++++++++++++++++++++++++------------------------ 1 file changed, 63 insertions(+), 59 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 842b1a15b78..4eabb737a48 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -91,9 +91,9 @@ enum { MV_IRQ_COAL_TIME_THRESHOLD = (MV_IRQ_COAL_REG_BASE + 0xd0), MV_SATAHC0_REG_BASE = 0x20000, - MV_FLASH_CTL = 0x1046c, - MV_GPIO_PORT_CTL = 0x104f0, - MV_RESET_CFG = 0x180d8, + MV_FLASH_CTL_OFS = 0x1046c, + MV_GPIO_PORT_CTL_OFS = 0x104f0, + MV_RESET_CFG_OFS = 0x180d8, MV_PCI_REG_SZ = MV_MAJOR_REG_AREA_SZ, MV_SATAHC_REG_SZ = MV_MAJOR_REG_AREA_SZ, @@ -147,18 +147,21 @@ enum { /* PCI interface registers */ PCI_COMMAND_OFS = 0xc00, + PCI_COMMAND_MRDTRIG = (1 << 7), /* PCI Master Read Trigger */ PCI_MAIN_CMD_STS_OFS = 0xd30, STOP_PCI_MASTER = (1 << 2), PCI_MASTER_EMPTY = (1 << 3), GLOB_SFT_RST = (1 << 4), - MV_PCI_MODE = 0xd00, + MV_PCI_MODE_OFS = 0xd00, + MV_PCI_MODE_MASK = 0x30, + MV_PCI_EXP_ROM_BAR_CTL = 0xd2c, MV_PCI_DISC_TIMER = 0xd04, MV_PCI_MSI_TRIGGER = 0xc38, MV_PCI_SERR_MASK = 0xc28, - MV_PCI_XBAR_TMOUT = 0x1d04, + MV_PCI_XBAR_TMOUT_OFS = 0x1d04, MV_PCI_ERR_LOW_ADDRESS = 0x1d40, MV_PCI_ERR_HIGH_ADDRESS = 0x1d44, MV_PCI_ERR_ATTRIBUTE = 0x1d48, @@ -225,16 +228,18 @@ enum { PHY_MODE4 = 0x314, PHY_MODE2 = 0x330, SATA_IFCTL_OFS = 0x344, + SATA_TESTCTL_OFS = 0x348, SATA_IFSTAT_OFS = 0x34c, VENDOR_UNIQUE_FIS_OFS = 0x35c, - FIS_CFG_OFS = 0x360, - FIS_CFG_SINGLE_SYNC = (1 << 16), /* SYNC on DMA activation */ + FISCFG_OFS = 0x360, + FISCFG_WAIT_DEV_ERR = (1 << 8), /* wait for host on DevErr */ + FISCFG_SINGLE_SYNC = (1 << 16), /* SYNC on DMA activation */ MV5_PHY_MODE = 0x74, - MV5_LT_MODE = 0x30, - MV5_PHY_CTL = 0x0C, - SATA_INTERFACE_CFG = 0x050, + MV5_LTMODE_OFS = 0x30, + MV5_PHY_CTL_OFS = 0x0C, + SATA_INTERFACE_CFG_OFS = 0x050, MV_M2_PREAMP_MASK = 0x7e0, @@ -332,10 +337,16 @@ enum { EDMA_CMD_OFS = 0x28, /* EDMA command register */ EDMA_EN = (1 << 0), /* enable EDMA */ EDMA_DS = (1 << 1), /* disable EDMA; self-negated */ - ATA_RST = (1 << 2), /* reset trans/link/phy */ + EDMA_RESET = (1 << 2), /* reset eng/trans/link/phy */ + + EDMA_STATUS_OFS = 0x30, /* EDMA engine status */ + EDMA_STATUS_CACHE_EMPTY = (1 << 6), /* GenIIe command cache empty */ + EDMA_STATUS_IDLE = (1 << 7), /* GenIIe EDMA enabled/idle */ - EDMA_IORDY_TMOUT = 0x34, - EDMA_ARB_CFG = 0x38, + EDMA_IORDY_TMOUT_OFS = 0x34, + EDMA_ARB_CFG_OFS = 0x38, + + EDMA_HALTCOND_OFS = 0x60, /* GenIIe halt conditions */ GEN_II_NCQ_MAX_SECTORS = 256, /* max sects/io on Gen2 w/NCQ */ @@ -359,6 +370,7 @@ enum { #define IS_GEN_I(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_I) #define IS_GEN_II(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_II) #define IS_GEN_IIE(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_IIE) +#define IS_PCIE(hpriv) ((hpriv)->hp_flags & MV_HP_PCIE) #define HAS_PCI(host) (!((host)->ports[0]->flags & MV_FLAG_SOC)) #define WINDOW_CTRL(i) (0x20030 + ((i) << 4)) @@ -1059,22 +1071,22 @@ static void mv6_dev_config(struct ata_device *adev) static void mv_config_fbs(void __iomem *port_mmio, int enable_fbs) { - u32 old_fcfg, new_fcfg, old_ltmode, new_ltmode; + u32 old_fiscfg, new_fiscfg, old_ltmode, new_ltmode; /* * Various bit settings required for operation * in FIS-based switching (fbs) mode on GenIIe: */ - old_fcfg = readl(port_mmio + FIS_CFG_OFS); + old_fiscfg = readl(port_mmio + FISCFG_OFS); old_ltmode = readl(port_mmio + LTMODE_OFS); if (enable_fbs) { - new_fcfg = old_fcfg | FIS_CFG_SINGLE_SYNC; + new_fiscfg = old_fiscfg | FISCFG_SINGLE_SYNC; new_ltmode = old_ltmode | LTMODE_BIT8; } else { /* disable fbs */ - new_fcfg = old_fcfg & ~FIS_CFG_SINGLE_SYNC; + new_fiscfg = old_fiscfg & ~FISCFG_SINGLE_SYNC; new_ltmode = old_ltmode & ~LTMODE_BIT8; } - if (new_fcfg != old_fcfg) - writelfl(new_fcfg, port_mmio + FIS_CFG_OFS); + if (new_fiscfg != old_fiscfg) + writelfl(new_fiscfg, port_mmio + FISCFG_OFS); if (new_ltmode != old_ltmode) writelfl(new_ltmode, port_mmio + LTMODE_OFS); } @@ -1894,7 +1906,7 @@ static void mv5_reset_bus(struct ata_host *host, void __iomem *mmio) static void mv5_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio) { - writel(0x0fcfffff, mmio + MV_FLASH_CTL); + writel(0x0fcfffff, mmio + MV_FLASH_CTL_OFS); } static void mv5_read_preamp(struct mv_host_priv *hpriv, int idx, @@ -1913,7 +1925,7 @@ static void mv5_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio) { u32 tmp; - writel(0, mmio + MV_GPIO_PORT_CTL); + writel(0, mmio + MV_GPIO_PORT_CTL_OFS); /* FIXME: handle MV_HP_ERRATA_50XXB2 errata */ @@ -1931,14 +1943,14 @@ static void mv5_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, int fix_apm_sq = (hpriv->hp_flags & MV_HP_ERRATA_50XXB0); if (fix_apm_sq) { - tmp = readl(phy_mmio + MV5_LT_MODE); + tmp = readl(phy_mmio + MV5_LTMODE_OFS); tmp |= (1 << 19); - writel(tmp, phy_mmio + MV5_LT_MODE); + writel(tmp, phy_mmio + MV5_LTMODE_OFS); - tmp = readl(phy_mmio + MV5_PHY_CTL); + tmp = readl(phy_mmio + MV5_PHY_CTL_OFS); tmp &= ~0x3; tmp |= 0x1; - writel(tmp, phy_mmio + MV5_PHY_CTL); + writel(tmp, phy_mmio + MV5_PHY_CTL_OFS); } tmp = readl(phy_mmio + MV5_PHY_MODE); @@ -1956,11 +1968,6 @@ static void mv5_reset_hc_port(struct mv_host_priv *hpriv, void __iomem *mmio, { void __iomem *port_mmio = mv_port_base(mmio, port); - /* - * The datasheet warns against setting ATA_RST when EDMA is active - * (but doesn't say what the problem might be). So we first try - * to disable the EDMA engine before doing the ATA_RST operation. - */ mv_reset_channel(hpriv, mmio, port); ZERO(0x028); /* command */ @@ -1975,7 +1982,7 @@ static void mv5_reset_hc_port(struct mv_host_priv *hpriv, void __iomem *mmio, ZERO(0x024); /* respq outp */ ZERO(0x020); /* respq inp */ ZERO(0x02c); /* test control */ - writel(0xbc, port_mmio + EDMA_IORDY_TMOUT); + writel(0xbc, port_mmio + EDMA_IORDY_TMOUT_OFS); } #undef ZERO @@ -2021,13 +2028,13 @@ static void mv_reset_pci_bus(struct ata_host *host, void __iomem *mmio) struct mv_host_priv *hpriv = host->private_data; u32 tmp; - tmp = readl(mmio + MV_PCI_MODE); + tmp = readl(mmio + MV_PCI_MODE_OFS); tmp &= 0xff00ffff; - writel(tmp, mmio + MV_PCI_MODE); + writel(tmp, mmio + MV_PCI_MODE_OFS); ZERO(MV_PCI_DISC_TIMER); ZERO(MV_PCI_MSI_TRIGGER); - writel(0x000100ff, mmio + MV_PCI_XBAR_TMOUT); + writel(0x000100ff, mmio + MV_PCI_XBAR_TMOUT_OFS); ZERO(PCI_HC_MAIN_IRQ_MASK_OFS); ZERO(MV_PCI_SERR_MASK); ZERO(hpriv->irq_cause_ofs); @@ -2045,10 +2052,10 @@ static void mv6_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio) mv5_reset_flash(hpriv, mmio); - tmp = readl(mmio + MV_GPIO_PORT_CTL); + tmp = readl(mmio + MV_GPIO_PORT_CTL_OFS); tmp &= 0x3; tmp |= (1 << 5) | (1 << 6); - writel(tmp, mmio + MV_GPIO_PORT_CTL); + writel(tmp, mmio + MV_GPIO_PORT_CTL_OFS); } /** @@ -2121,7 +2128,7 @@ static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx, void __iomem *port_mmio; u32 tmp; - tmp = readl(mmio + MV_RESET_CFG); + tmp = readl(mmio + MV_RESET_CFG_OFS); if ((tmp & (1 << 0)) == 0) { hpriv->signal[idx].amps = 0x7 << 8; hpriv->signal[idx].pre = 0x1 << 5; @@ -2137,7 +2144,7 @@ static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx, static void mv6_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio) { - writel(0x00000060, mmio + MV_GPIO_PORT_CTL); + writel(0x00000060, mmio + MV_GPIO_PORT_CTL_OFS); } static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, @@ -2235,11 +2242,6 @@ static void mv_soc_reset_hc_port(struct mv_host_priv *hpriv, { void __iomem *port_mmio = mv_port_base(mmio, port); - /* - * The datasheet warns against setting ATA_RST when EDMA is active - * (but doesn't say what the problem might be). So we first try - * to disable the EDMA engine before doing the ATA_RST operation. - */ mv_reset_channel(hpriv, mmio, port); ZERO(0x028); /* command */ @@ -2254,7 +2256,7 @@ static void mv_soc_reset_hc_port(struct mv_host_priv *hpriv, ZERO(0x024); /* respq outp */ ZERO(0x020); /* respq inp */ ZERO(0x02c); /* test control */ - writel(0xbc, port_mmio + EDMA_IORDY_TMOUT); + writel(0xbc, port_mmio + EDMA_IORDY_TMOUT_OFS); } #undef ZERO @@ -2297,38 +2299,39 @@ static void mv_soc_reset_bus(struct ata_host *host, void __iomem *mmio) return; } -static void mv_setup_ifctl(void __iomem *port_mmio, int want_gen2i) +static void mv_setup_ifcfg(void __iomem *port_mmio, int want_gen2i) { - u32 ifctl = readl(port_mmio + SATA_INTERFACE_CFG); + u32 ifcfg = readl(port_mmio + SATA_INTERFACE_CFG_OFS); - ifctl = (ifctl & 0xf7f) | 0x9b1000; /* from chip spec */ + ifcfg = (ifcfg & 0xf7f) | 0x9b1000; /* from chip spec */ if (want_gen2i) - ifctl |= (1 << 7); /* enable gen2i speed */ - writelfl(ifctl, port_mmio + SATA_INTERFACE_CFG); + ifcfg |= (1 << 7); /* enable gen2i speed */ + writelfl(ifcfg, port_mmio + SATA_INTERFACE_CFG_OFS); } -/* - * Caller must ensure that EDMA is not active, - * by first doing mv_stop_edma() where needed. - */ static void mv_reset_channel(struct mv_host_priv *hpriv, void __iomem *mmio, unsigned int port_no) { void __iomem *port_mmio = mv_port_base(mmio, port_no); + /* + * The datasheet warns against setting EDMA_RESET when EDMA is active + * (but doesn't say what the problem might be). So we first try + * to disable the EDMA engine before doing the EDMA_RESET operation. + */ mv_stop_edma_engine(port_mmio); - writelfl(ATA_RST, port_mmio + EDMA_CMD_OFS); + writelfl(EDMA_RESET, port_mmio + EDMA_CMD_OFS); if (!IS_GEN_I(hpriv)) { - /* Enable 3.0gb/s link speed */ - mv_setup_ifctl(port_mmio, 1); + /* Enable 3.0gb/s link speed: this survives EDMA_RESET */ + mv_setup_ifcfg(port_mmio, 1); } /* - * Strobing ATA_RST here causes a hard reset of the SATA transport, + * Strobing EDMA_RESET here causes a hard reset of the SATA transport, * link, and physical layers. It resets all SATA interface registers * (except for SATA_INTERFACE_CFG), and issues a COMRESET to the dev. */ - writelfl(ATA_RST, port_mmio + EDMA_CMD_OFS); + writelfl(EDMA_RESET, port_mmio + EDMA_CMD_OFS); udelay(25); /* allow reset propagation */ writelfl(0, port_mmio + EDMA_CMD_OFS); @@ -2392,7 +2395,7 @@ static int mv_hardreset(struct ata_link *link, unsigned int *class, sata_scr_read(link, SCR_STATUS, &sstatus); if (!IS_GEN_I(hpriv) && ++attempts >= 5 && sstatus == 0x121) { /* Force 1.5gb/s link speed and try again */ - mv_setup_ifctl(mv_ap_base(ap), 0); + mv_setup_ifcfg(mv_ap_base(ap), 0); if (time_after(jiffies + HZ, deadline)) extra = HZ; /* only extend it once, max */ } @@ -2590,6 +2593,7 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx) " and avoid the final two gigabytes on" " all RocketRAID BIOS initialized drives.\n"); } + /* drop through */ case chip_6042: hpriv->ops = &mv6xxx_ops; hp_flags |= MV_HP_GEN_IIE; -- cgit v1.2.3-70-g09d2 From 616d4a98ad8749ebe17a8fcac67df65c321350ac Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 02:08:32 -0400 Subject: sata_mv pci features Some of the GenIIe EDMA optimizations should not be used for non-PCI (SOC) devices, and nor for certain configurations of conventional PCI (non PCI-X, PCIe) buses. Logic taken/simplified from that in the Marvell proprietary driver. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 39 ++++++++++++++++++++++++++++++++++++--- 1 file changed, 36 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 4eabb737a48..10ef9683f04 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -361,6 +361,7 @@ enum { MV_HP_GEN_II = (1 << 7), /* Generation II: 60xx */ MV_HP_GEN_IIE = (1 << 8), /* Generation IIE: 6042/7042 */ MV_HP_PCIE = (1 << 9), /* PCIe bus/regs: 7042 */ + MV_HP_CUT_THROUGH = (1 << 10), /* can use EDMA cut-through */ /* Port private flags (pp_flags) */ MV_PP_FLAG_EDMA_EN = (1 << 0), /* is EDMA engine enabled? */ @@ -1110,8 +1111,10 @@ static void mv_edma_cfg(struct ata_port *ap, int want_ncq) else if (IS_GEN_IIE(hpriv)) { cfg |= (1 << 23); /* do not mask PM field in rx'd FIS */ cfg |= (1 << 22); /* enab 4-entry host queue cache */ - cfg |= (1 << 18); /* enab early completion */ - cfg |= (1 << 17); /* enab cut-through (dis stor&forwrd) */ + if (HAS_PCI(ap->host)) + cfg |= (1 << 18); /* enab early completion */ + if (hpriv->hp_flags & MV_HP_CUT_THROUGH) + cfg |= (1 << 17); /* enab cut-thru (dis stor&forwrd) */ if (want_ncq && sata_pmp_attached(ap)) { cfg |= EDMA_CFG_EDMA_FBS; /* FIS-based switching */ @@ -2496,6 +2499,34 @@ static void mv_port_init(struct ata_ioports *port, void __iomem *port_mmio) readl(port_mmio + EDMA_ERR_IRQ_MASK_OFS)); } +static unsigned int mv_in_pcix_mode(struct ata_host *host) +{ + struct mv_host_priv *hpriv = host->private_data; + void __iomem *mmio = hpriv->base; + u32 reg; + + if (!HAS_PCI(host) || !IS_PCIE(hpriv)) + return 0; /* not PCI-X capable */ + reg = readl(mmio + MV_PCI_MODE_OFS); + if ((reg & MV_PCI_MODE_MASK) == 0) + return 0; /* conventional PCI mode */ + return 1; /* chip is in PCI-X mode */ +} + +static int mv_pci_cut_through_okay(struct ata_host *host) +{ + struct mv_host_priv *hpriv = host->private_data; + void __iomem *mmio = hpriv->base; + u32 reg; + + if (!mv_in_pcix_mode(host)) { + reg = readl(mmio + PCI_COMMAND_OFS); + if (reg & PCI_COMMAND_MRDTRIG) + return 0; /* not okay */ + } + return 1; /* okay */ +} + static int mv_chip_id(struct ata_host *host, unsigned int board_idx) { struct pci_dev *pdev = to_pci_dev(host->dev); @@ -2563,7 +2594,7 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx) break; case chip_7042: - hp_flags |= MV_HP_PCIE; + hp_flags |= MV_HP_PCIE | MV_HP_CUT_THROUGH; if (pdev->vendor == PCI_VENDOR_ID_TTI && (pdev->device == 0x2300 || pdev->device == 0x2310)) { @@ -2597,6 +2628,8 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx) case chip_6042: hpriv->ops = &mv6xxx_ops; hp_flags |= MV_HP_GEN_IIE; + if (board_idx == chip_6042 && mv_pci_cut_through_okay(host)) + hp_flags |= MV_HP_CUT_THROUGH; switch (pdev->revision) { case 0x0: -- cgit v1.2.3-70-g09d2 From 9b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 02:09:14 -0400 Subject: sata_mv wait for empty+idle When performing EH, it is recommended to wait for the EDMA engine to empty out requests-in-progress before disabling EDMA. Introduce code to poll the EDMA_STATUS register for idle/empty bits before disabling EDMA. For non-EH operation, this will normally exit without delay, other than the register read. A later series of patches may focus on eliminating this and various other register reads (when possible) throughout the driver, but for now we're focussing on solid reliablity. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 10ef9683f04..692996216b1 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -888,6 +888,25 @@ static void mv_start_dma(struct ata_port *ap, void __iomem *port_mmio, } } +static void mv_wait_for_edma_empty_idle(struct ata_port *ap) +{ + void __iomem *port_mmio = mv_ap_base(ap); + const u32 empty_idle = (EDMA_STATUS_CACHE_EMPTY | EDMA_STATUS_IDLE); + const int per_loop = 5, timeout = (15 * 1000 / per_loop); + int i; + + /* + * Wait for the EDMA engine to finish transactions in progress. + */ + for (i = 0; i < timeout; ++i) { + u32 edma_stat = readl(port_mmio + EDMA_STATUS_OFS); + if ((edma_stat & empty_idle) == empty_idle) + break; + udelay(per_loop); + } + /* ata_port_printk(ap, KERN_INFO, "%s: %u+ usecs\n", __func__, i); */ +} + /** * mv_stop_edma_engine - Disable eDMA engine * @port_mmio: io base address @@ -920,6 +939,7 @@ static int mv_stop_edma(struct ata_port *ap) if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN)) return 0; pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN; + mv_wait_for_edma_empty_idle(ap); if (mv_stop_edma_engine(port_mmio)) { ata_port_printk(ap, KERN_ERR, "Unable to stop eDMA\n"); return -EIO; -- cgit v1.2.3-70-g09d2 From 3e4a139107e497a741c26f8a377a10f214d63ec1 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 02:10:02 -0400 Subject: sata_mv new mv_qc_defer method The EDMA engine cannot tolerate a mix of NCQ/non-NCQ commands, and cannot be used for PIO at all. So we need to prevent libata from trying to feed us such mixtures. Introduce mv_qc_defer() for this purpose, and use it for all chip versions. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 43 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 41 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 692996216b1..0545a491610 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -492,6 +492,7 @@ static int mv5_scr_read(struct ata_port *ap, unsigned int sc_reg_in, u32 *val); static int mv5_scr_write(struct ata_port *ap, unsigned int sc_reg_in, u32 val); static int mv_port_start(struct ata_port *ap); static void mv_port_stop(struct ata_port *ap); +static int mv_qc_defer(struct ata_queued_cmd *qc); static void mv_qc_prep(struct ata_queued_cmd *qc); static void mv_qc_prep_iie(struct ata_queued_cmd *qc); static unsigned int mv_qc_issue(struct ata_queued_cmd *qc); @@ -561,6 +562,7 @@ static struct scsi_host_template mv6_sht = { static struct ata_port_operations mv5_ops = { .inherits = &ata_sff_port_ops, + .qc_defer = mv_qc_defer, .qc_prep = mv_qc_prep, .qc_issue = mv_qc_issue, @@ -579,7 +581,6 @@ static struct ata_port_operations mv5_ops = { static struct ata_port_operations mv6_ops = { .inherits = &mv5_ops, - .qc_defer = sata_pmp_qc_defer_cmd_switch, .dev_config = mv6_dev_config, .scr_read = mv_scr_read, .scr_write = mv_scr_write, @@ -592,7 +593,6 @@ static struct ata_port_operations mv6_ops = { static struct ata_port_operations mv_iie_ops = { .inherits = &mv6_ops, - .qc_defer = ata_std_qc_defer, /* FIS-based switching */ .dev_config = ATA_OP_NULL, .qc_prep = mv_qc_prep_iie, }; @@ -1090,6 +1090,45 @@ static void mv6_dev_config(struct ata_device *adev) } } +static int mv_qc_defer(struct ata_queued_cmd *qc) +{ + struct ata_link *link = qc->dev->link; + struct ata_port *ap = link->ap; + struct mv_port_priv *pp = ap->private_data; + + /* + * If the port is completely idle, then allow the new qc. + */ + if (ap->nr_active_links == 0) + return 0; + + if (pp->pp_flags & MV_PP_FLAG_EDMA_EN) { + /* + * The port is operating in host queuing mode (EDMA). + * It can accomodate a new qc if the qc protocol + * is compatible with the current host queue mode. + */ + if (pp->pp_flags & MV_PP_FLAG_NCQ_EN) { + /* + * The host queue (EDMA) is in NCQ mode. + * If the new qc is also an NCQ command, + * then allow the new qc. + */ + if (qc->tf.protocol == ATA_PROT_NCQ) + return 0; + } else { + /* + * The host queue (EDMA) is in non-NCQ, DMA mode. + * If the new qc is also a non-NCQ, DMA command, + * then allow the new qc. + */ + if (qc->tf.protocol == ATA_PROT_DMA) + return 0; + } + } + return ATA_DEFER_PORT; +} + static void mv_config_fbs(void __iomem *port_mmio, int enable_fbs) { u32 old_fiscfg, new_fiscfg, old_ltmode, new_ltmode; -- cgit v1.2.3-70-g09d2 From dd2890f60f8e15f14c8eb132779b2f15c49d1203 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 02:10:56 -0400 Subject: sata_mv errata workaround for sata25 part 1 Part 1 of workaround for errata "sata#25" for the 60x1 series (the second half of this errata workaround is still in development. Bit22 of the GPIO port has to be set "on" when in NCQ mode. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 0545a491610..fbccf215d50 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -1151,6 +1151,21 @@ static void mv_config_fbs(void __iomem *port_mmio, int enable_fbs) writelfl(new_ltmode, port_mmio + LTMODE_OFS); } +static void mv_60x1_errata_sata25(struct ata_port *ap, int want_ncq) +{ + struct mv_host_priv *hpriv = ap->host->private_data; + u32 old, new; + + /* workaround for 88SX60x1 FEr SATA#25 (part 1) */ + old = readl(hpriv->base + MV_GPIO_PORT_CTL_OFS); + if (want_ncq) + new = old | (1 << 22); + else + new = old & ~(1 << 22); + if (new != old) + writel(new, hpriv->base + MV_GPIO_PORT_CTL_OFS); +} + static void mv_edma_cfg(struct ata_port *ap, int want_ncq) { u32 cfg; @@ -1164,10 +1179,11 @@ static void mv_edma_cfg(struct ata_port *ap, int want_ncq) if (IS_GEN_I(hpriv)) cfg |= (1 << 8); /* enab config burst size mask */ - else if (IS_GEN_II(hpriv)) + else if (IS_GEN_II(hpriv)) { cfg |= EDMA_CFG_RD_BRST_EXT | EDMA_CFG_WR_BUFF_LEN; + mv_60x1_errata_sata25(ap, want_ncq); - else if (IS_GEN_IIE(hpriv)) { + } else if (IS_GEN_IIE(hpriv)) { cfg |= (1 << 23); /* do not mask PM field in rx'd FIS */ cfg |= (1 << 22); /* enab 4-entry host queue cache */ if (HAS_PCI(ap->host)) -- cgit v1.2.3-70-g09d2 From 00f42eabb204c68fa64ef72de834e74aca15c81f Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 02:11:45 -0400 Subject: sata_mv rearrange mv_config_fbs Rearrange mv_config_fbs() to more closely follow the (corrected) datasheet recommendations for NCQ and FIS-based switching (FBS). Also, maintain a port flag to let us know when FBS is enabled. We will make more use of that flag later in this patch series. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 60 +++++++++++++++++++++++++++++++++------------------ 1 file changed, 39 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index fbccf215d50..e4d411cec79 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -366,6 +366,7 @@ enum { /* Port private flags (pp_flags) */ MV_PP_FLAG_EDMA_EN = (1 << 0), /* is EDMA engine enabled? */ MV_PP_FLAG_NCQ_EN = (1 << 1), /* is EDMA set up for NCQ? */ + MV_PP_FLAG_FBS_EN = (1 << 2), /* is EDMA set up for FBS? */ }; #define IS_GEN_I(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_I) @@ -1129,26 +1130,31 @@ static int mv_qc_defer(struct ata_queued_cmd *qc) return ATA_DEFER_PORT; } -static void mv_config_fbs(void __iomem *port_mmio, int enable_fbs) +static void mv_config_fbs(void __iomem *port_mmio, int want_ncq, int want_fbs) { - u32 old_fiscfg, new_fiscfg, old_ltmode, new_ltmode; - /* - * Various bit settings required for operation - * in FIS-based switching (fbs) mode on GenIIe: - */ - old_fiscfg = readl(port_mmio + FISCFG_OFS); - old_ltmode = readl(port_mmio + LTMODE_OFS); - if (enable_fbs) { - new_fiscfg = old_fiscfg | FISCFG_SINGLE_SYNC; - new_ltmode = old_ltmode | LTMODE_BIT8; - } else { /* disable fbs */ - new_fiscfg = old_fiscfg & ~FISCFG_SINGLE_SYNC; - new_ltmode = old_ltmode & ~LTMODE_BIT8; + u32 new_fiscfg, old_fiscfg; + u32 new_ltmode, old_ltmode; + u32 new_haltcond, old_haltcond; + + old_fiscfg = readl(port_mmio + FISCFG_OFS); + old_ltmode = readl(port_mmio + LTMODE_OFS); + old_haltcond = readl(port_mmio + EDMA_HALTCOND_OFS); + + new_fiscfg = old_fiscfg & ~(FISCFG_SINGLE_SYNC | FISCFG_WAIT_DEV_ERR); + new_ltmode = old_ltmode & ~LTMODE_BIT8; + new_haltcond = old_haltcond | EDMA_ERR_DEV; + + if (want_fbs) { + new_fiscfg = old_fiscfg | FISCFG_SINGLE_SYNC; + new_ltmode = old_ltmode | LTMODE_BIT8; } + if (new_fiscfg != old_fiscfg) writelfl(new_fiscfg, port_mmio + FISCFG_OFS); if (new_ltmode != old_ltmode) writelfl(new_ltmode, port_mmio + LTMODE_OFS); + if (new_haltcond != old_haltcond) + writelfl(new_haltcond, port_mmio + EDMA_HALTCOND_OFS); } static void mv_60x1_errata_sata25(struct ata_port *ap, int want_ncq) @@ -1175,6 +1181,7 @@ static void mv_edma_cfg(struct ata_port *ap, int want_ncq) /* set up non-NCQ EDMA configuration */ cfg = EDMA_CFG_Q_DEPTH; /* always 0x1f for *all* chips */ + pp->pp_flags &= ~MV_PP_FLAG_FBS_EN; if (IS_GEN_I(hpriv)) cfg |= (1 << 8); /* enab config burst size mask */ @@ -1184,19 +1191,30 @@ static void mv_edma_cfg(struct ata_port *ap, int want_ncq) mv_60x1_errata_sata25(ap, want_ncq); } else if (IS_GEN_IIE(hpriv)) { + int want_fbs = sata_pmp_attached(ap); + /* + * Possible future enhancement: + * + * The chip can use FBS with non-NCQ, if we allow it, + * But first we need to have the error handling in place + * for this mode (datasheet section 7.3.15.4.2.3). + * So disallow non-NCQ FBS for now. + */ + want_fbs &= want_ncq; + + mv_config_fbs(port_mmio, want_ncq, want_fbs); + + if (want_fbs) { + pp->pp_flags |= MV_PP_FLAG_FBS_EN; + cfg |= EDMA_CFG_EDMA_FBS; /* FIS-based switching */ + } + cfg |= (1 << 23); /* do not mask PM field in rx'd FIS */ cfg |= (1 << 22); /* enab 4-entry host queue cache */ if (HAS_PCI(ap->host)) cfg |= (1 << 18); /* enab early completion */ if (hpriv->hp_flags & MV_HP_CUT_THROUGH) cfg |= (1 << 17); /* enab cut-thru (dis stor&forwrd) */ - - if (want_ncq && sata_pmp_attached(ap)) { - cfg |= EDMA_CFG_EDMA_FBS; /* FIS-based switching */ - mv_config_fbs(port_mmio, 1); - } else { - mv_config_fbs(port_mmio, 0); - } } if (want_ncq) { -- cgit v1.2.3-70-g09d2 From 37b9046a3e433a0b0c39ad1e81ec187d5be800ba Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 02:12:34 -0400 Subject: sata_mv NCQ and SError fixes for mv_err_intr Sigh. Undo some earlier changes to mv_port_intr(), so that we now read/clear SError again in all cases. Arrange the top of the function to be as close as possible to what we need for a later update (in this series) for ERR_DEV handling. Fix things so that libata-eh can attempt a READ_LOG_EXT_10H in response to a failed NCQ command, by just doing a local mv_eh_freeze() rather than ata_port_freeze(). This will now fully handle NCQ errors much of the time, but more fixes are needed for FBS/PMP, and for certain chip errata. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 64 ++++++++++++++++++++++++++++++++++----------------- 1 file changed, 43 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index e4d411cec79..d995e0e15d8 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -1627,7 +1627,7 @@ static void mv_unexpected_intr(struct ata_port *ap) * LOCKING: * Inherited from caller. */ -static void mv_err_intr(struct ata_port *ap, struct ata_queued_cmd *qc) +static void mv_err_intr(struct ata_port *ap) { void __iomem *port_mmio = mv_ap_base(ap); u32 edma_err_cause, eh_freeze_mask, serr = 0; @@ -1635,24 +1635,33 @@ static void mv_err_intr(struct ata_port *ap, struct ata_queued_cmd *qc) struct mv_host_priv *hpriv = ap->host->private_data; unsigned int action = 0, err_mask = 0; struct ata_eh_info *ehi = &ap->link.eh_info; - - ata_ehi_clear_desc(ehi); + struct ata_queued_cmd *qc; + int abort = 0; /* - * Read and clear the err_cause bits. This won't actually - * clear for some errors (eg. SError), but we will be doing - * a hard reset in those cases regardless, which *will* clear it. + * Read and clear the SError and err_cause bits. */ + sata_scr_read(&ap->link, SCR_ERROR, &serr); + sata_scr_write_flush(&ap->link, SCR_ERROR, serr); + edma_err_cause = readl(port_mmio + EDMA_ERR_IRQ_CAUSE_OFS); writelfl(~edma_err_cause, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS); - ata_ehi_push_desc(ehi, "edma_err_cause=%08x", edma_err_cause); + ata_port_printk(ap, KERN_INFO, "%s: err_cause=%08x pp_flags=0x%x\n", + __func__, edma_err_cause, pp->pp_flags); + qc = mv_get_active_qc(ap); + ata_ehi_clear_desc(ehi); + ata_ehi_push_desc(ehi, "edma_err_cause=%08x pp_flags=%08x", + edma_err_cause, pp->pp_flags); /* * All generations share these EDMA error cause bits: */ - if (edma_err_cause & EDMA_ERR_DEV) + if (edma_err_cause & EDMA_ERR_DEV) { err_mask |= AC_ERR_DEV; + action |= ATA_EH_RESET; + ata_ehi_push_desc(ehi, "dev error"); + } if (edma_err_cause & (EDMA_ERR_D_PAR | EDMA_ERR_PRD_PAR | EDMA_ERR_CRQB_PAR | EDMA_ERR_CRPB_PAR | EDMA_ERR_INTRL_PAR)) { @@ -1684,13 +1693,6 @@ static void mv_err_intr(struct ata_port *ap, struct ata_queued_cmd *qc) ata_ehi_push_desc(ehi, "EDMA self-disable"); } if (edma_err_cause & EDMA_ERR_SERR) { - /* - * Ensure that we read our own SCR, not a pmp link SCR: - */ - ap->ops->scr_read(ap, SCR_ERROR, &serr); - /* - * Don't clear SError here; leave it for libata-eh: - */ ata_ehi_push_desc(ehi, "SError=%08x", serr); err_mask |= AC_ERR_ATA_BUS; action |= ATA_EH_RESET; @@ -1710,10 +1712,29 @@ static void mv_err_intr(struct ata_port *ap, struct ata_queued_cmd *qc) else ehi->err_mask |= err_mask; - if (edma_err_cause & eh_freeze_mask) + if (err_mask == AC_ERR_DEV) { + /* + * Cannot do ata_port_freeze() here, + * because it would kill PIO access, + * which is needed for further diagnosis. + */ + mv_eh_freeze(ap); + abort = 1; + } else if (edma_err_cause & eh_freeze_mask) { + /* + * Note to self: ata_port_freeze() calls ata_port_abort() + */ ata_port_freeze(ap); - else - ata_port_abort(ap); + } else { + abort = 1; + } + + if (abort) { + if (qc) + ata_link_abort(qc->dev->link); + else + ata_port_abort(ap); + } } static void mv_process_crpb_response(struct ata_port *ap, @@ -1740,8 +1761,9 @@ static void mv_process_crpb_response(struct ata_port *ap, } } ata_status = edma_status >> CRPB_FLAG_STATUS_SHIFT; - qc->err_mask |= ac_err_mask(ata_status); - ata_qc_complete(qc); + if (!ac_err_mask(ata_status)) + ata_qc_complete(qc); + /* else: leave it for mv_err_intr() */ } else { ata_port_printk(ap, KERN_ERR, "%s: no qc for tag=%d\n", __func__, tag); @@ -1845,7 +1867,7 @@ static int mv_host_intr(struct ata_host *host, u32 main_irq_cause) * Handle chip-reported errors, or continue on to handle PIO. */ if (unlikely(port_cause & ERR_IRQ)) { - mv_err_intr(ap, mv_get_active_qc(ap)); + mv_err_intr(ap); } else if (hc_irq_cause & (DEV_IRQ << hardport)) { if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN)) { struct ata_queued_cmd *qc = mv_get_active_qc(ap); -- cgit v1.2.3-70-g09d2 From eabd5eb1cb59bfb162e7aa23007248f2bb480816 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 02:13:27 -0400 Subject: sata_mv fix mv_host_intr bug for hc_irq_cause Remove the unwanted reads of hc_irq_cause from mv_host_intr(), thereby removing a bug whereby we were not always reading it when needed.. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 71 ++++++++++++++++++++++++++++++--------------------- 1 file changed, 42 insertions(+), 29 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index d995e0e15d8..31e42deb746 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -1818,48 +1818,61 @@ static void mv_process_crpb_entries(struct ata_port *ap, struct mv_port_priv *pp static int mv_host_intr(struct ata_host *host, u32 main_irq_cause) { struct mv_host_priv *hpriv = host->private_data; - void __iomem *mmio = hpriv->base, *hc_mmio = NULL; - u32 hc_irq_cause = 0; + void __iomem *mmio = hpriv->base, *hc_mmio; unsigned int handled = 0, port; for (port = 0; port < hpriv->n_ports; port++) { struct ata_port *ap = host->ports[port]; struct mv_port_priv *pp; - unsigned int shift, hardport, port_cause; - /* - * When we move to the second hc, flag our cached - * copies of hc_mmio (and hc_irq_cause) as invalid again. - */ - if (port == MV_PORTS_PER_HC) - hc_mmio = NULL; - /* - * Do nothing if port is not interrupting or is disabled: - */ + unsigned int p, shift, hardport, port_cause; + MV_PORT_TO_SHIFT_AND_HARDPORT(port, shift, hardport); - port_cause = (main_irq_cause >> shift) & (DONE_IRQ | ERR_IRQ); - if (!port_cause || !ap || (ap->flags & ATA_FLAG_DISABLED)) - continue; /* - * Each hc within the host has its own hc_irq_cause register. - * We defer reading it until we know we need it, right now: - * - * FIXME later: we don't really need to read this register - * (some logic changes required below if we go that way), - * because it doesn't tell us anything new. But we do need - * to write to it, outside the top of this loop, - * to reset the interrupt triggers for next time. + * Each hc within the host has its own hc_irq_cause register, + * where the interrupting ports bits get ack'd. */ - if (!hc_mmio) { + if (hardport == 0) { /* first port on this hc ? */ + u32 hc_cause = (main_irq_cause >> shift) & HC0_IRQ_PEND; + u32 port_mask, ack_irqs; + /* + * Skip this entire hc if nothing pending for any ports + */ + if (!hc_cause) { + port += MV_PORTS_PER_HC - 1; + continue; + } + /* + * We don't need/want to read the hc_irq_cause register, + * because doing so hurts performance, and + * main_irq_cause already gives us everything we need. + * + * But we do have to *write* to the hc_irq_cause to ack + * the ports that we are handling this time through. + * + * This requires that we create a bitmap for those + * ports which interrupted us, and use that bitmap + * to ack (only) those ports via hc_irq_cause. + */ + ack_irqs = 0; + for (p = 0; p < MV_PORTS_PER_HC; ++p) { + if ((port + p) >= hpriv->n_ports) + break; + port_mask = (DONE_IRQ | ERR_IRQ) << (p * 2); + if (hc_cause & port_mask) + ack_irqs |= (DMA_IRQ | DEV_IRQ) << p; + } hc_mmio = mv_hc_base_from_port(mmio, port); - hc_irq_cause = readl(hc_mmio + HC_IRQ_CAUSE_OFS); - writelfl(~hc_irq_cause, hc_mmio + HC_IRQ_CAUSE_OFS); + writelfl(~ack_irqs, hc_mmio + HC_IRQ_CAUSE_OFS); handled = 1; } + port_cause = (main_irq_cause >> shift) & (DONE_IRQ | ERR_IRQ); + if (!port_cause) + continue; /* * Process completed CRPB response(s) before other events. */ pp = ap->private_data; - if (hc_irq_cause & (DMA_IRQ << hardport)) { + if (port_cause & DONE_IRQ) { if (pp->pp_flags & MV_PP_FLAG_EDMA_EN) mv_process_crpb_entries(ap, pp); } @@ -1868,15 +1881,15 @@ static int mv_host_intr(struct ata_host *host, u32 main_irq_cause) */ if (unlikely(port_cause & ERR_IRQ)) { mv_err_intr(ap); - } else if (hc_irq_cause & (DEV_IRQ << hardport)) { + } else { if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN)) { struct ata_queued_cmd *qc = mv_get_active_qc(ap); if (qc) { ata_sff_host_intr(ap, qc); continue; } + mv_unexpected_intr(ap); } - mv_unexpected_intr(ap); } } return handled; -- cgit v1.2.3-70-g09d2 From a90103298fd5ccd9a9df6d47bde9a3f371707037 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 02:14:02 -0400 Subject: sata_mv new mv_port_intr function Separate out the inner loop body of mv_host_intr() into it's own function called mv_port_intr(). This should help maintainabilty. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 84 +++++++++++++++++++++++++++++---------------------- 1 file changed, 48 insertions(+), 36 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 31e42deb746..803578ef22f 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -1591,25 +1591,22 @@ static struct ata_queued_cmd *mv_get_active_qc(struct ata_port *ap) return qc; } -static void mv_unexpected_intr(struct ata_port *ap) +static void mv_unexpected_intr(struct ata_port *ap, int edma_was_enabled) { - struct mv_port_priv *pp = ap->private_data; struct ata_eh_info *ehi = &ap->link.eh_info; - char *when = ""; + char *when = "idle"; - /* - * We got a device interrupt from something that - * was supposed to be using EDMA or polling. - */ ata_ehi_clear_desc(ehi); - if (pp->pp_flags & MV_PP_FLAG_EDMA_EN) { - when = " while EDMA enabled"; + if (!ap || (ap->flags & ATA_FLAG_DISABLED)) { + when = "disabled"; + } else if (edma_was_enabled) { + when = "EDMA enabled"; } else { struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->link.active_tag); if (qc && (qc->tf.flags & ATA_TFLAG_POLLING)) - when = " while polling"; + when = "polling"; } - ata_ehi_push_desc(ehi, "unexpected device interrupt%s", when); + ata_ehi_push_desc(ehi, "unexpected device interrupt while %s", when); ehi->err_mask |= AC_ERR_OTHER; ehi->action |= ATA_EH_RESET; ata_port_freeze(ap); @@ -1807,6 +1804,42 @@ static void mv_process_crpb_entries(struct ata_port *ap, struct mv_port_priv *pp port_mmio + EDMA_RSP_Q_OUT_PTR_OFS); } +static void mv_port_intr(struct ata_port *ap, u32 port_cause) +{ + struct mv_port_priv *pp; + int edma_was_enabled; + + if (!ap || (ap->flags & ATA_FLAG_DISABLED)) { + mv_unexpected_intr(ap, 0); + return; + } + /* + * Grab a snapshot of the EDMA_EN flag setting, + * so that we have a consistent view for this port, + * even if something we call of our routines changes it. + */ + pp = ap->private_data; + edma_was_enabled = (pp->pp_flags & MV_PP_FLAG_EDMA_EN); + /* + * Process completed CRPB response(s) before other events. + */ + if (edma_was_enabled && (port_cause & DONE_IRQ)) { + mv_process_crpb_entries(ap, pp); + } + /* + * Handle chip-reported errors, or continue on to handle PIO. + */ + if (unlikely(port_cause & ERR_IRQ)) { + mv_err_intr(ap); + } else if (!edma_was_enabled) { + struct ata_queued_cmd *qc = mv_get_active_qc(ap); + if (qc) + ata_sff_host_intr(ap, qc); + else + mv_unexpected_intr(ap, edma_was_enabled); + } +} + /** * mv_host_intr - Handle all interrupts on the given host controller * @host: host specific structure @@ -1823,7 +1856,6 @@ static int mv_host_intr(struct ata_host *host, u32 main_irq_cause) for (port = 0; port < hpriv->n_ports; port++) { struct ata_port *ap = host->ports[port]; - struct mv_port_priv *pp; unsigned int p, shift, hardport, port_cause; MV_PORT_TO_SHIFT_AND_HARDPORT(port, shift, hardport); @@ -1865,32 +1897,12 @@ static int mv_host_intr(struct ata_host *host, u32 main_irq_cause) writelfl(~ack_irqs, hc_mmio + HC_IRQ_CAUSE_OFS); handled = 1; } - port_cause = (main_irq_cause >> shift) & (DONE_IRQ | ERR_IRQ); - if (!port_cause) - continue; - /* - * Process completed CRPB response(s) before other events. - */ - pp = ap->private_data; - if (port_cause & DONE_IRQ) { - if (pp->pp_flags & MV_PP_FLAG_EDMA_EN) - mv_process_crpb_entries(ap, pp); - } /* - * Handle chip-reported errors, or continue on to handle PIO. + * Handle interrupts signalled for this port: */ - if (unlikely(port_cause & ERR_IRQ)) { - mv_err_intr(ap); - } else { - if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN)) { - struct ata_queued_cmd *qc = mv_get_active_qc(ap); - if (qc) { - ata_sff_host_intr(ap, qc); - continue; - } - mv_unexpected_intr(ap); - } - } + port_cause = (main_irq_cause >> shift) & (DONE_IRQ | ERR_IRQ); + if (port_cause) + mv_port_intr(ap, port_cause); } return handled; } -- cgit v1.2.3-70-g09d2 From 10acf3b0d3b46c6ef5d6f0722f72ad9b743ea848 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 02:14:53 -0400 Subject: libata: export ata_eh_analyze_ncq_error Export ata_eh_analyze_ncq_error() for subsequent use by sata_mv, as suggested by Tejun. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/libata-core.c | 1 + drivers/ata/libata-eh.c | 2 +- include/linux/libata.h | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 3bc48853820..927b692d723 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -6292,6 +6292,7 @@ EXPORT_SYMBOL_GPL(ata_eh_freeze_port); EXPORT_SYMBOL_GPL(ata_eh_thaw_port); EXPORT_SYMBOL_GPL(ata_eh_qc_complete); EXPORT_SYMBOL_GPL(ata_eh_qc_retry); +EXPORT_SYMBOL_GPL(ata_eh_analyze_ncq_error); EXPORT_SYMBOL_GPL(ata_do_eh); EXPORT_SYMBOL_GPL(ata_std_error_handler); diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 61dcd0026c6..62e033146be 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -1357,7 +1357,7 @@ static void ata_eh_analyze_serror(struct ata_link *link) * LOCKING: * Kernel thread context (may sleep). */ -static void ata_eh_analyze_ncq_error(struct ata_link *link) +void ata_eh_analyze_ncq_error(struct ata_link *link) { struct ata_port *ap = link->ap; struct ata_eh_context *ehc = &link->eh_context; diff --git a/include/linux/libata.h b/include/linux/libata.h index 95e6159b44c..7e206da1fbf 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1039,6 +1039,7 @@ extern void ata_eh_thaw_port(struct ata_port *ap); extern void ata_eh_qc_complete(struct ata_queued_cmd *qc); extern void ata_eh_qc_retry(struct ata_queued_cmd *qc); +extern void ata_eh_analyze_ncq_error(struct ata_link *link); extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset, ata_reset_fn_t softreset, ata_reset_fn_t hardreset, -- cgit v1.2.3-70-g09d2 From 29d187bb1e30682e228ce461c487d78d945c3e4f Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 02:15:37 -0400 Subject: sata_mv delayed eh handling Introduce a new "delayed error handling" mechanism in sata_mv, to enable us to eventually deal with multiple simultaneous NCQ failures on a single host link when a PM is present. This involves a port flag (MV_PP_FLAG_DELAYED_EH) to prevent new commands being queued, and a pmp bitmap to indicate which pmp links had NCQ errors. The new mv_pmp_error_handler() uses those values to invoke ata_eh_analyze_ncq_error() on each failed link, prior to freezing the port and passing control to sata_pmp_error_handler(). This is based upon a strategy suggested by Tejun. For now, we just implement the delayed mechanism. The next patch in this series will add the multiple-NCQ EH code to take advantage of it. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 38 +++++++++++++++++++++++++++++++++++++- 1 file changed, 37 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 803578ef22f..1991eb22e38 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -367,6 +367,7 @@ enum { MV_PP_FLAG_EDMA_EN = (1 << 0), /* is EDMA engine enabled? */ MV_PP_FLAG_NCQ_EN = (1 << 1), /* is EDMA set up for NCQ? */ MV_PP_FLAG_FBS_EN = (1 << 2), /* is EDMA set up for FBS? */ + MV_PP_FLAG_DELAYED_EH = (1 << 3), /* delayed dev err handling */ }; #define IS_GEN_I(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_I) @@ -447,6 +448,7 @@ struct mv_port_priv { unsigned int resp_idx; u32 pp_flags; + unsigned int delayed_eh_pmp_map; }; struct mv_port_signal { @@ -542,6 +544,7 @@ static int mv_pmp_hardreset(struct ata_link *link, unsigned int *class, unsigned long deadline); static int mv_softreset(struct ata_link *link, unsigned int *class, unsigned long deadline); +static void mv_pmp_error_handler(struct ata_port *ap); /* .sg_tablesize is (MV_MAX_SG_CT / 2) in the structures below * because we have to allow room for worst case splitting of @@ -589,7 +592,7 @@ static struct ata_port_operations mv6_ops = { .pmp_hardreset = mv_pmp_hardreset, .pmp_softreset = mv_softreset, .softreset = mv_softreset, - .error_handler = sata_pmp_error_handler, + .error_handler = mv_pmp_error_handler, }; static struct ata_port_operations mv_iie_ops = { @@ -1097,6 +1100,12 @@ static int mv_qc_defer(struct ata_queued_cmd *qc) struct ata_port *ap = link->ap; struct mv_port_priv *pp = ap->private_data; + /* + * Don't allow new commands if we're in a delayed EH state + * for NCQ and/or FIS-based switching. + */ + if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH) + return ATA_DEFER_PORT; /* * If the port is completely idle, then allow the new qc. */ @@ -1591,6 +1600,33 @@ static struct ata_queued_cmd *mv_get_active_qc(struct ata_port *ap) return qc; } +static void mv_pmp_error_handler(struct ata_port *ap) +{ + unsigned int pmp, pmp_map; + struct mv_port_priv *pp = ap->private_data; + + if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH) { + /* + * Perform NCQ error analysis on failed PMPs + * before we freeze the port entirely. + * + * The failed PMPs are marked earlier by mv_pmp_eh_prep(). + */ + pmp_map = pp->delayed_eh_pmp_map; + pp->pp_flags &= ~MV_PP_FLAG_DELAYED_EH; + for (pmp = 0; pmp_map != 0; pmp++) { + unsigned int this_pmp = (1 << pmp); + if (pmp_map & this_pmp) { + struct ata_link *link = &ap->pmp_link[pmp]; + pmp_map &= ~this_pmp; + ata_eh_analyze_ncq_error(link); + } + } + ata_port_freeze(ap); + } + sata_pmp_error_handler(ap); +} + static void mv_unexpected_intr(struct ata_port *ap, int edma_was_enabled) { struct ata_eh_info *ehi = &ap->link.eh_info; -- cgit v1.2.3-70-g09d2 From 4c299ca3649ccf666819e7d4a27a68c39fa174f1 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 02:16:20 -0400 Subject: sata_mv NCQ-EH for FIS-based switching Convert sata_mv's EH for FIS-based switching (FBS) over to the sequence recommended by Marvell. This enables us to catch/analyze multiple failed links on a port-multiplier when using NCQ. To do this, we clear the ERR_DEV bit in the EDMA Halt-Conditions register, so that the EDMA engine doesn't self-disable on the first NCQ error. Our EH code sets the MV_PP_FLAG_DELAYED_EH flag to prevent new commands being queued while we await completion of all outstanding NCQ commands on all links of the failed PM. The SATA Test Control register tells us which links have failed, so we must only wait for any other active links to finish up before we stop the EDMA and run the .error_handler afterward. The patch also includes skeleton code for handling of non-NCQ FBS operation. This is more for documentation purposes right now, as that mode is not yet enabled in sata_mv. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 165 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 165 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 1991eb22e38..b948dc866e0 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -545,6 +545,8 @@ static int mv_pmp_hardreset(struct ata_link *link, unsigned int *class, static int mv_softreset(struct ata_link *link, unsigned int *class, unsigned long deadline); static void mv_pmp_error_handler(struct ata_port *ap); +static void mv_process_crpb_entries(struct ata_port *ap, + struct mv_port_priv *pp); /* .sg_tablesize is (MV_MAX_SG_CT / 2) in the structures below * because we have to allow room for worst case splitting of @@ -1156,6 +1158,10 @@ static void mv_config_fbs(void __iomem *port_mmio, int want_ncq, int want_fbs) if (want_fbs) { new_fiscfg = old_fiscfg | FISCFG_SINGLE_SYNC; new_ltmode = old_ltmode | LTMODE_BIT8; + if (want_ncq) + new_haltcond &= ~EDMA_ERR_DEV; + else + new_fiscfg |= FISCFG_WAIT_DEV_ERR; } if (new_fiscfg != old_fiscfg) @@ -1627,6 +1633,154 @@ static void mv_pmp_error_handler(struct ata_port *ap) sata_pmp_error_handler(ap); } +static unsigned int mv_get_err_pmp_map(struct ata_port *ap) +{ + void __iomem *port_mmio = mv_ap_base(ap); + + return readl(port_mmio + SATA_TESTCTL_OFS) >> 16; +} + +static int mv_count_pmp_links(unsigned int pmp_map) +{ + unsigned int link_count = 0; + + while (pmp_map) { + link_count += (pmp_map & 1); + pmp_map >>= 1; + } + return link_count; +} + +static void mv_pmp_eh_prep(struct ata_port *ap, unsigned int pmp_map) +{ + struct ata_eh_info *ehi; + unsigned int pmp; + + /* + * Initialize EH info for PMPs which saw device errors + */ + ehi = &ap->link.eh_info; + for (pmp = 0; pmp_map != 0; pmp++) { + unsigned int this_pmp = (1 << pmp); + if (pmp_map & this_pmp) { + struct ata_link *link = &ap->pmp_link[pmp]; + + pmp_map &= ~this_pmp; + ehi = &link->eh_info; + ata_ehi_clear_desc(ehi); + ata_ehi_push_desc(ehi, "dev err"); + ehi->err_mask |= AC_ERR_DEV; + ehi->action |= ATA_EH_RESET; + ata_link_abort(link); + } + } +} + +static int mv_handle_fbs_ncq_dev_err(struct ata_port *ap) +{ + struct mv_port_priv *pp = ap->private_data; + int failed_links; + unsigned int old_map, new_map; + + /* + * Device error during FBS+NCQ operation: + * + * Set a port flag to prevent further I/O being enqueued. + * Leave the EDMA running to drain outstanding commands from this port. + * Perform the post-mortem/EH only when all responses are complete. + * Follow recovery sequence from 6042/7042 datasheet (7.3.15.4.2.2). + */ + if (!(pp->pp_flags & MV_PP_FLAG_DELAYED_EH)) { + pp->pp_flags |= MV_PP_FLAG_DELAYED_EH; + pp->delayed_eh_pmp_map = 0; + } + old_map = pp->delayed_eh_pmp_map; + new_map = old_map | mv_get_err_pmp_map(ap); + + if (old_map != new_map) { + pp->delayed_eh_pmp_map = new_map; + mv_pmp_eh_prep(ap, new_map & ~old_map); + } + failed_links = mv_count_pmp_links(new_map); + + ata_port_printk(ap, KERN_INFO, "%s: pmp_map=%04x qc_map=%04x " + "failed_links=%d nr_active_links=%d\n", + __func__, pp->delayed_eh_pmp_map, + ap->qc_active, failed_links, + ap->nr_active_links); + + if (ap->nr_active_links <= failed_links) { + mv_process_crpb_entries(ap, pp); + mv_stop_edma(ap); + mv_eh_freeze(ap); + ata_port_printk(ap, KERN_INFO, "%s: done\n", __func__); + return 1; /* handled */ + } + ata_port_printk(ap, KERN_INFO, "%s: waiting\n", __func__); + return 1; /* handled */ +} + +static int mv_handle_fbs_non_ncq_dev_err(struct ata_port *ap) +{ + /* + * Possible future enhancement: + * + * FBS+non-NCQ operation is not yet implemented. + * See related notes in mv_edma_cfg(). + * + * Device error during FBS+non-NCQ operation: + * + * We need to snapshot the shadow registers for each failed command. + * Follow recovery sequence from 6042/7042 datasheet (7.3.15.4.2.3). + */ + return 0; /* not handled */ +} + +static int mv_handle_dev_err(struct ata_port *ap, u32 edma_err_cause) +{ + struct mv_port_priv *pp = ap->private_data; + + if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN)) + return 0; /* EDMA was not active: not handled */ + if (!(pp->pp_flags & MV_PP_FLAG_FBS_EN)) + return 0; /* FBS was not active: not handled */ + + if (!(edma_err_cause & EDMA_ERR_DEV)) + return 0; /* non DEV error: not handled */ + edma_err_cause &= ~EDMA_ERR_IRQ_TRANSIENT; + if (edma_err_cause & ~(EDMA_ERR_DEV | EDMA_ERR_SELF_DIS)) + return 0; /* other problems: not handled */ + + if (pp->pp_flags & MV_PP_FLAG_NCQ_EN) { + /* + * EDMA should NOT have self-disabled for this case. + * If it did, then something is wrong elsewhere, + * and we cannot handle it here. + */ + if (edma_err_cause & EDMA_ERR_SELF_DIS) { + ata_port_printk(ap, KERN_WARNING, + "%s: err_cause=0x%x pp_flags=0x%x\n", + __func__, edma_err_cause, pp->pp_flags); + return 0; /* not handled */ + } + return mv_handle_fbs_ncq_dev_err(ap); + } else { + /* + * EDMA should have self-disabled for this case. + * If it did not, then something is wrong elsewhere, + * and we cannot handle it here. + */ + if (!(edma_err_cause & EDMA_ERR_SELF_DIS)) { + ata_port_printk(ap, KERN_WARNING, + "%s: err_cause=0x%x pp_flags=0x%x\n", + __func__, edma_err_cause, pp->pp_flags); + return 0; /* not handled */ + } + return mv_handle_fbs_non_ncq_dev_err(ap); + } + return 0; /* not handled */ +} + static void mv_unexpected_intr(struct ata_port *ap, int edma_was_enabled) { struct ata_eh_info *ehi = &ap->link.eh_info; @@ -1683,6 +1837,15 @@ static void mv_err_intr(struct ata_port *ap) ata_port_printk(ap, KERN_INFO, "%s: err_cause=%08x pp_flags=0x%x\n", __func__, edma_err_cause, pp->pp_flags); + if (edma_err_cause & EDMA_ERR_DEV) { + /* + * Device errors during FIS-based switching operation + * require special handling. + */ + if (mv_handle_dev_err(ap, edma_err_cause)) + return; + } + qc = mv_get_active_qc(ap); ata_ehi_clear_desc(ehi); ata_ehi_push_desc(ehi, "edma_err_cause=%08x pp_flags=%08x", @@ -1861,6 +2024,8 @@ static void mv_port_intr(struct ata_port *ap, u32 port_cause) */ if (edma_was_enabled && (port_cause & DONE_IRQ)) { mv_process_crpb_entries(ap, pp); + if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH) + mv_handle_fbs_ncq_dev_err(ap); } /* * Handle chip-reported errors, or continue on to handle PIO. -- cgit v1.2.3-70-g09d2 From c46938ccfe35a58a0873715ee4c26fc9eb8d87b3 Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Fri, 2 May 2008 14:02:28 -0400 Subject: sata_mv use hweight16() for bit counting (V2) Some tidying as suggested by Grant Grundler. Nuke local bit-counting function from sata_mv in favour of using hweight16(). Also add a short explanation for the 15msec timeout used when waiting for empty/idle. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index b948dc866e0..bb73b222262 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -65,6 +65,7 @@ #include #include #include +#include #include #include #include @@ -903,6 +904,10 @@ static void mv_wait_for_edma_empty_idle(struct ata_port *ap) /* * Wait for the EDMA engine to finish transactions in progress. + * No idea what a good "timeout" value might be, but measurements + * indicate that it often requires hundreds of microseconds + * with two drives in-use. So we use the 15msec value above + * as a rough guess at what even more drives might require. */ for (i = 0; i < timeout; ++i) { u32 edma_stat = readl(port_mmio + EDMA_STATUS_OFS); @@ -1640,17 +1645,6 @@ static unsigned int mv_get_err_pmp_map(struct ata_port *ap) return readl(port_mmio + SATA_TESTCTL_OFS) >> 16; } -static int mv_count_pmp_links(unsigned int pmp_map) -{ - unsigned int link_count = 0; - - while (pmp_map) { - link_count += (pmp_map & 1); - pmp_map >>= 1; - } - return link_count; -} - static void mv_pmp_eh_prep(struct ata_port *ap, unsigned int pmp_map) { struct ata_eh_info *ehi; @@ -1701,7 +1695,7 @@ static int mv_handle_fbs_ncq_dev_err(struct ata_port *ap) pp->delayed_eh_pmp_map = new_map; mv_pmp_eh_prep(ap, new_map & ~old_map); } - failed_links = mv_count_pmp_links(new_map); + failed_links = hweight16(new_map); ata_port_printk(ap, KERN_INFO, "%s: pmp_map=%04x qc_map=%04x " "failed_links=%d nr_active_links=%d\n", -- cgit v1.2.3-70-g09d2 From 36f674d9a65264d3826ca7300bed441e22a624b2 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 30 Apr 2008 16:35:08 +0900 Subject: sata_inic162x: misc clean ups * use larger indents for structure member definitions * kill unused variable @addr in inic_scr_write() * kill unnecessary flushes in inic_freeze/thaw() * kill buggy explicit kfree() on devres managed port private data This is in preparation of further inic162x updates. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/sata_inic162x.c | 18 +++++------------- 1 file changed, 5 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index d27bb9a2568..1f5d17eb0f3 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -99,13 +99,13 @@ enum { }; struct inic_host_priv { - u16 cached_hctl; + u16 cached_hctl; }; struct inic_port_priv { - u8 dfl_prdctl; - u8 cached_prdctl; - u8 cached_pirq_mask; + u8 dfl_prdctl; + u8 cached_prdctl; + u8 cached_pirq_mask; }; static struct scsi_host_template inic_sht = { @@ -185,12 +185,10 @@ static int inic_scr_read(struct ata_port *ap, unsigned sc_reg, u32 *val) static int inic_scr_write(struct ata_port *ap, unsigned sc_reg, u32 val) { void __iomem *scr_addr = ap->ioaddr.scr_addr; - void __iomem *addr; if (unlikely(sc_reg >= ARRAY_SIZE(scr_map))) return -EINVAL; - addr = scr_addr + scr_map[sc_reg] * 4; writel(val, scr_addr + scr_map[sc_reg] * 4); return 0; } @@ -367,8 +365,6 @@ static void inic_freeze(struct ata_port *ap) ap->ops->sff_check_status(ap); writeb(0xff, port_base + PORT_IRQ_STAT); - - readb(port_base + PORT_IRQ_STAT); /* flush */ } static void inic_thaw(struct ata_port *ap) @@ -379,8 +375,6 @@ static void inic_thaw(struct ata_port *ap) writeb(0xff, port_base + PORT_IRQ_STAT); __inic_set_pirq_mask(ap, PIRQ_MASK_OTHER); - - readb(port_base + PORT_IRQ_STAT); /* flush */ } /* @@ -506,10 +500,8 @@ static int inic_port_start(struct ata_port *ap) /* Alloc resources */ rc = ata_port_start(ap); - if (rc) { - kfree(pp); + if (rc) return rc; - } init_port(ap); -- cgit v1.2.3-70-g09d2 From b0dd9b8ef985291a8b40118c5f33b7935e273dcb Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 30 Apr 2008 16:35:09 +0900 Subject: sata_inic162x: add / update constants * add a bunch of constants, most are from the datasheet, a few undocumented ones are from initio's modified driver * HCTL_PWRDWN is bit 12 not 13 This is in preparation of further inic162x updates. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/sata_inic162x.c | 59 ++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 56 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index 1f5d17eb0f3..1b10455e1ae 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -35,6 +35,7 @@ enum { NR_PORTS = 2, + HOST_ACTRL = 0x08, HOST_CTL = 0x7c, HOST_STAT = 0x7e, HOST_IRQ_STAT = 0xbc, @@ -43,22 +44,37 @@ enum { PORT_SIZE = 0x40, /* registers for ATA TF operation */ - PORT_TF = 0x00, - PORT_ALT_STAT = 0x08, + PORT_TF_DATA = 0x00, + PORT_TF_FEATURE = 0x01, + PORT_TF_NSECT = 0x02, + PORT_TF_LBAL = 0x03, + PORT_TF_LBAM = 0x04, + PORT_TF_LBAH = 0x05, + PORT_TF_DEVICE = 0x06, + PORT_TF_COMMAND = 0x07, + PORT_TF_ALT_STAT = 0x08, PORT_IRQ_STAT = 0x09, PORT_IRQ_MASK = 0x0a, PORT_PRD_CTL = 0x0b, PORT_PRD_ADDR = 0x0c, PORT_PRD_XFERLEN = 0x10, + PORT_CPB_CPBLAR = 0x18, + PORT_CPB_PTQFIFO = 0x1c, /* IDMA register */ PORT_IDMA_CTL = 0x14, + PORT_IDMA_STAT = 0x16, + + PORT_RPQ_FIFO = 0x1e, + PORT_RPQ_CNT = 0x1f, PORT_SCR = 0x20, /* HOST_CTL bits */ HCTL_IRQOFF = (1 << 8), /* global IRQ off */ - HCTL_PWRDWN = (1 << 13), /* power down PHYs */ + HCTL_FTHD0 = (1 << 10), /* fifo threshold 0 */ + HCTL_FTHD1 = (1 << 11), /* fifo threshold 1*/ + HCTL_PWRDWN = (1 << 12), /* power down PHYs */ HCTL_SOFTRST = (1 << 13), /* global reset (no phy reset) */ HCTL_RPGSEL = (1 << 15), /* register page select */ @@ -96,6 +112,43 @@ enum { IDMA_CTL_RST_IDMA = (1 << 5), /* reset IDMA machinary */ IDMA_CTL_GO = (1 << 7), /* IDMA mode go */ IDMA_CTL_ATA_NIEN = (1 << 8), /* ATA IRQ disable */ + + /* PORT_IDMA_STAT bits */ + IDMA_STAT_PERR = (1 << 0), /* PCI ERROR MODE */ + IDMA_STAT_CPBERR = (1 << 1), /* ADMA CPB error */ + IDMA_STAT_LGCY = (1 << 3), /* ADMA legacy */ + IDMA_STAT_UIRQ = (1 << 4), /* ADMA unsolicited irq */ + IDMA_STAT_STPD = (1 << 5), /* ADMA stopped */ + IDMA_STAT_PSD = (1 << 6), /* ADMA pause */ + IDMA_STAT_DONE = (1 << 7), /* ADMA done */ + + IDMA_STAT_ERR = IDMA_STAT_PERR | IDMA_STAT_CPBERR, + + /* CPB Control Flags*/ + CPB_CTL_VALID = (1 << 0), /* CPB valid */ + CPB_CTL_QUEUED = (1 << 1), /* queued command */ + CPB_CTL_DATA = (1 << 2), /* data, rsvd in datasheet */ + CPB_CTL_IEN = (1 << 3), /* PCI interrupt enable */ + CPB_CTL_DEVDIR = (1 << 4), /* device direction control */ + + /* CPB Response Flags */ + CPB_RESP_DONE = (1 << 0), /* ATA command complete */ + CPB_RESP_REL = (1 << 1), /* ATA release */ + CPB_RESP_IGNORED = (1 << 2), /* CPB ignored */ + CPB_RESP_ATA_ERR = (1 << 3), /* ATA command error */ + CPB_RESP_SPURIOUS = (1 << 4), /* ATA spurious interrupt error */ + CPB_RESP_UNDERFLOW = (1 << 5), /* APRD deficiency length error */ + CPB_RESP_OVERFLOW = (1 << 6), /* APRD exccess length error */ + CPB_RESP_CPB_ERR = (1 << 7), /* CPB error flag */ + + /* PRD Control Flags */ + PRD_DRAIN = (1 << 1), /* ignore data excess */ + PRD_CDB = (1 << 2), /* atapi packet command pointer */ + PRD_DIRECT_INTR = (1 << 3), /* direct interrupt */ + PRD_DMA = (1 << 4), /* data transfer method */ + PRD_WRITE = (1 << 5), /* data dir, rsvd in datasheet */ + PRD_IOM = (1 << 6), /* io/memory transfer */ + PRD_END = (1 << 7), /* APRD chain end */ }; struct inic_host_priv { -- cgit v1.2.3-70-g09d2 From 364fac0e56b9bd379330ef9e39d3761f0b491e2c Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 1 May 2008 23:55:58 +0900 Subject: sata_inic162x: update TF read handling inic162x can't reliably read back TF or at least we don't know how to do it yet. The only values which seem reliable are status and error. This patch updates access to TF. * implement inic_tf_read() which reads the TF area in mmio area * implement custom inic_qc_fill_rtf() which only returns true if status indicates device error. it'll be returning bogus addresses for device errors but it'll be able to report why it failed at least. * implement custom inic_check_ready() and use ata_wait_after_reset() instead of the SFF version. * use inic_tf_read() for classification. This is not perfect but it fixes hotplug detection failure and at least makes the driver report 0's instead of random garbages while reporting valid status and error for device errors. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/sata_inic162x.c | 47 +++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 45 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index 1b10455e1ae..97267ab001e 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -410,6 +410,41 @@ static unsigned int inic_qc_issue(struct ata_queued_cmd *qc) return ata_sff_qc_issue(qc); } +static void inic_tf_read(struct ata_port *ap, struct ata_taskfile *tf) +{ + void __iomem *port_base = inic_port_base(ap); + + tf->feature = readb(port_base + PORT_TF_FEATURE); + tf->nsect = readb(port_base + PORT_TF_NSECT); + tf->lbal = readb(port_base + PORT_TF_LBAL); + tf->lbam = readb(port_base + PORT_TF_LBAM); + tf->lbah = readb(port_base + PORT_TF_LBAH); + tf->device = readb(port_base + PORT_TF_DEVICE); + tf->command = readb(port_base + PORT_TF_COMMAND); +} + +static bool inic_qc_fill_rtf(struct ata_queued_cmd *qc) +{ + struct ata_taskfile *rtf = &qc->result_tf; + struct ata_taskfile tf; + + /* FIXME: Except for status and error, result TF access + * doesn't work. I tried reading from BAR0/2, CPB and BAR5. + * None works regardless of which command interface is used. + * For now return true iff status indicates device error. + * This means that we're reporting bogus sector for RW + * failures. Eeekk.... + */ + inic_tf_read(qc->ap, &tf); + + if (!(tf.command & ATA_ERR)) + return false; + + rtf->command = tf.command; + rtf->feature = tf.feature; + return true; +} + static void inic_freeze(struct ata_port *ap) { void __iomem *port_base = inic_port_base(ap); @@ -430,6 +465,13 @@ static void inic_thaw(struct ata_port *ap) __inic_set_pirq_mask(ap, PIRQ_MASK_OTHER); } +static int inic_check_ready(struct ata_link *link) +{ + void __iomem *port_base = inic_port_base(link->ap); + + return ata_check_ready(readb(port_base + PORT_TF_COMMAND)); +} + /* * SRST and SControl hardreset don't give valid signature on this * controller. Only controller specific hardreset mechanism works. @@ -465,7 +507,7 @@ static int inic_hardreset(struct ata_link *link, unsigned int *class, struct ata_taskfile tf; /* wait for link to become ready */ - rc = ata_sff_wait_after_reset(link, 1, deadline); + rc = ata_wait_after_reset(link, deadline, inic_check_ready); /* link occupied, -ENODEV too is an error */ if (rc) { ata_link_printk(link, KERN_WARNING, "device not ready " @@ -473,7 +515,7 @@ static int inic_hardreset(struct ata_link *link, unsigned int *class, return rc; } - ata_sff_tf_read(ap, &tf); + inic_tf_read(ap, &tf); *class = ata_dev_classify(&tf); } @@ -569,6 +611,7 @@ static struct ata_port_operations inic_port_ops = { .bmdma_stop = inic_bmdma_stop, .bmdma_status = inic_bmdma_status, .qc_issue = inic_qc_issue, + .qc_fill_rtf = inic_qc_fill_rtf, .freeze = inic_freeze, .thaw = inic_thaw, -- cgit v1.2.3-70-g09d2 From 3ad400a92e9c7d2f7caa6c6f811dad9b7d3f333c Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 30 Apr 2008 16:35:11 +0900 Subject: sata_inic162x: use IDMA for ATA_PROT_DMA The modified driver on initio site has enough clue on how to use IDMA. Use IDMA for ATA_PROT_DMA. * LBA48 now works as long as it uses DMA (LBA48 devices still aren't allowed as it can destroy data if PIO is used for any reason). * No need to mask IRQs for read DMAs as IDMA_DONE is properly raised after transfer to memory is actually completed. There will be some spurious interrupts but host_intr will handle it correctly and manipulating port IRQ mask interacts badly with the other port for some reason, so command type dependent port IRQ masking is not used anymore. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/sata_inic162x.c | 270 ++++++++++++++++++++++++++++++++++++++------ 1 file changed, 235 insertions(+), 35 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index 97267ab001e..db57f34d221 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -35,6 +35,10 @@ enum { NR_PORTS = 2, + IDMA_CPB_TBL_SIZE = 4 * 32, + + INIC_DMA_BOUNDARY = 0xffffff, + HOST_ACTRL = 0x08, HOST_CTL = 0x7c, HOST_STAT = 0x7e, @@ -151,11 +155,57 @@ enum { PRD_END = (1 << 7), /* APRD chain end */ }; +/* Comman Parameter Block */ +struct inic_cpb { + u8 resp_flags; /* Response Flags */ + u8 error; /* ATA Error */ + u8 status; /* ATA Status */ + u8 ctl_flags; /* Control Flags */ + __le32 len; /* Total Transfer Length */ + __le32 prd; /* First PRD pointer */ + u8 rsvd[4]; + /* 16 bytes */ + u8 feature; /* ATA Feature */ + u8 hob_feature; /* ATA Ex. Feature */ + u8 device; /* ATA Device/Head */ + u8 mirctl; /* Mirror Control */ + u8 nsect; /* ATA Sector Count */ + u8 hob_nsect; /* ATA Ex. Sector Count */ + u8 lbal; /* ATA Sector Number */ + u8 hob_lbal; /* ATA Ex. Sector Number */ + u8 lbam; /* ATA Cylinder Low */ + u8 hob_lbam; /* ATA Ex. Cylinder Low */ + u8 lbah; /* ATA Cylinder High */ + u8 hob_lbah; /* ATA Ex. Cylinder High */ + u8 command; /* ATA Command */ + u8 ctl; /* ATA Control */ + u8 slave_error; /* Slave ATA Error */ + u8 slave_status; /* Slave ATA Status */ + /* 32 bytes */ +} __packed; + +/* Physical Region Descriptor */ +struct inic_prd { + __le32 mad; /* Physical Memory Address */ + __le16 len; /* Transfer Length */ + u8 rsvd; + u8 flags; /* Control Flags */ +} __packed; + +struct inic_pkt { + struct inic_cpb cpb; + struct inic_prd prd[LIBATA_MAX_PRD]; +} __packed; + struct inic_host_priv { u16 cached_hctl; }; struct inic_port_priv { + struct inic_pkt *pkt; + dma_addr_t pkt_dma; + u32 *cpb_tbl; + dma_addr_t cpb_tbl_dma; u8 dfl_prdctl; u8 cached_prdctl; u8 cached_pirq_mask; @@ -163,6 +213,7 @@ struct inic_port_priv { static struct scsi_host_template inic_sht = { ATA_BMDMA_SHT(DRV_NAME), + .dma_boundary = INIC_DMA_BOUNDARY, }; static const int scr_map[] = { @@ -303,42 +354,112 @@ static u8 inic_bmdma_status(struct ata_port *ap) return ATA_DMA_INTR; } -static void inic_host_intr(struct ata_port *ap) +static void inic_stop_idma(struct ata_port *ap) { void __iomem *port_base = inic_port_base(ap); + + readb(port_base + PORT_RPQ_FIFO); + readb(port_base + PORT_RPQ_CNT); + writew(0, port_base + PORT_IDMA_CTL); +} + +static void inic_host_err_intr(struct ata_port *ap, u8 irq_stat, u16 idma_stat) +{ struct ata_eh_info *ehi = &ap->link.eh_info; + struct inic_port_priv *pp = ap->private_data; + struct inic_cpb *cpb = &pp->pkt->cpb; + bool freeze = false; + + ata_ehi_clear_desc(ehi); + ata_ehi_push_desc(ehi, "irq_stat=0x%x idma_stat=0x%x", + irq_stat, idma_stat); + + inic_stop_idma(ap); + + if (irq_stat & (PIRQ_OFFLINE | PIRQ_ONLINE)) { + ata_ehi_push_desc(ehi, "hotplug"); + ata_ehi_hotplugged(ehi); + freeze = true; + } + + if (idma_stat & IDMA_STAT_PERR) { + ata_ehi_push_desc(ehi, "PCI error"); + freeze = true; + } + + if (idma_stat & IDMA_STAT_CPBERR) { + ata_ehi_push_desc(ehi, "CPB error"); + + if (cpb->resp_flags & CPB_RESP_IGNORED) { + __ata_ehi_push_desc(ehi, " ignored"); + ehi->err_mask |= AC_ERR_INVALID; + freeze = true; + } + + if (cpb->resp_flags & CPB_RESP_ATA_ERR) + ehi->err_mask |= AC_ERR_DEV; + + if (cpb->resp_flags & CPB_RESP_SPURIOUS) { + __ata_ehi_push_desc(ehi, " spurious-intr"); + ehi->err_mask |= AC_ERR_HSM; + freeze = true; + } + + if (cpb->resp_flags & + (CPB_RESP_UNDERFLOW | CPB_RESP_OVERFLOW)) { + __ata_ehi_push_desc(ehi, " data-over/underflow"); + ehi->err_mask |= AC_ERR_HSM; + freeze = true; + } + } + + if (freeze) + ata_port_freeze(ap); + else + ata_port_abort(ap); +} + +static void inic_host_intr(struct ata_port *ap) +{ + void __iomem *port_base = inic_port_base(ap); + struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->link.active_tag); u8 irq_stat; + u16 idma_stat; - /* fetch and clear irq */ + /* read and clear IRQ status */ irq_stat = readb(port_base + PORT_IRQ_STAT); writeb(irq_stat, port_base + PORT_IRQ_STAT); + idma_stat = readw(port_base + PORT_IDMA_STAT); + + if (unlikely((irq_stat & PIRQ_ERR) || (idma_stat & IDMA_STAT_ERR))) + inic_host_err_intr(ap, irq_stat, idma_stat); + + if (unlikely(!qc || (qc->tf.flags & ATA_TFLAG_POLLING))) { + ap->ops->sff_check_status(ap); /* clear ATA interrupt */ + goto spurious; + } + + if (qc->tf.protocol == ATA_PROT_DMA) { + if (likely(idma_stat & IDMA_STAT_DONE)) { + inic_stop_idma(ap); - if (likely(!(irq_stat & PIRQ_ERR))) { - struct ata_queued_cmd *qc = - ata_qc_from_tag(ap, ap->link.active_tag); + /* Depending on circumstances, device error + * isn't reported by IDMA, check it explicitly. + */ + if (unlikely(readb(port_base + PORT_TF_COMMAND) & + (ATA_DF | ATA_ERR))) + qc->err_mask |= AC_ERR_DEV; - if (unlikely(!qc || (qc->tf.flags & ATA_TFLAG_POLLING))) { - ap->ops->sff_check_status(ap); /* clear ATA interrupt */ + ata_qc_complete(qc); return; } - + } else { if (likely(ata_sff_host_intr(ap, qc))) return; - - ap->ops->sff_check_status(ap); /* clear ATA interrupt */ - ata_port_printk(ap, KERN_WARNING, "unhandled " - "interrupt, irq_stat=%x\n", irq_stat); - return; } - /* error */ - ata_ehi_push_desc(ehi, "irq_stat=0x%x", irq_stat); - - if (irq_stat & (PIRQ_OFFLINE | PIRQ_ONLINE)) { - ata_ehi_hotplugged(ehi); - ata_port_freeze(ap); - } else - ata_port_abort(ap); + spurious: + ap->ops->sff_check_status(ap); /* clear ATA interrupt */ } static irqreturn_t inic_interrupt(int irq, void *dev_instance) @@ -378,22 +499,83 @@ static irqreturn_t inic_interrupt(int irq, void *dev_instance) return IRQ_RETVAL(handled); } +static void inic_fill_sg(struct inic_prd *prd, struct ata_queued_cmd *qc) +{ + struct scatterlist *sg; + unsigned int si; + u8 flags = PRD_DMA; + + if (qc->tf.flags & ATA_TFLAG_WRITE) + flags |= PRD_WRITE; + + for_each_sg(qc->sg, sg, qc->n_elem, si) { + prd->mad = cpu_to_le32(sg_dma_address(sg)); + prd->len = cpu_to_le16(sg_dma_len(sg)); + prd->flags = flags; + prd++; + } + + WARN_ON(!si); + prd[-1].flags |= PRD_END; +} + +static void inic_qc_prep(struct ata_queued_cmd *qc) +{ + struct inic_port_priv *pp = qc->ap->private_data; + struct inic_pkt *pkt = pp->pkt; + struct inic_cpb *cpb = &pkt->cpb; + struct inic_prd *prd = pkt->prd; + + VPRINTK("ENTER\n"); + + if (qc->tf.protocol != ATA_PROT_DMA) + return; + + /* prepare packet, based on initio driver */ + memset(pkt, 0, sizeof(struct inic_pkt)); + + cpb->ctl_flags = CPB_CTL_VALID | CPB_CTL_IEN | CPB_CTL_DATA; + + cpb->len = cpu_to_le32(qc->nbytes); + cpb->prd = cpu_to_le32(pp->pkt_dma + offsetof(struct inic_pkt, prd)); + + cpb->device = qc->tf.device; + cpb->feature = qc->tf.feature; + cpb->nsect = qc->tf.nsect; + cpb->lbal = qc->tf.lbal; + cpb->lbam = qc->tf.lbam; + cpb->lbah = qc->tf.lbah; + + if (qc->tf.flags & ATA_TFLAG_LBA48) { + cpb->hob_feature = qc->tf.hob_feature; + cpb->hob_nsect = qc->tf.hob_nsect; + cpb->hob_lbal = qc->tf.hob_lbal; + cpb->hob_lbam = qc->tf.hob_lbam; + cpb->hob_lbah = qc->tf.hob_lbah; + } + + cpb->command = qc->tf.command; + /* don't load ctl - dunno why. it's like that in the initio driver */ + + /* setup sg table */ + inic_fill_sg(prd, qc); + + pp->cpb_tbl[0] = pp->pkt_dma; +} + static unsigned int inic_qc_issue(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; + void __iomem *port_base = inic_port_base(ap); - /* ATA IRQ doesn't wait for DMA transfer completion and vice - * versa. Mask IRQ selectively to detect command completion. - * Without it, ATA DMA read command can cause data corruption. - * - * Something similar might be needed for ATAPI writes. I - * tried a lot of combinations but couldn't find the solution. - */ - if (qc->tf.protocol == ATA_PROT_DMA && - !(qc->tf.flags & ATA_TFLAG_WRITE)) - inic_set_pirq_mask(ap, PIRQ_MASK_DMA_READ); - else - inic_set_pirq_mask(ap, PIRQ_MASK_OTHER); + if (qc->tf.protocol == ATA_PROT_DMA) { + /* fire up the ADMA engine */ + writew(HCTL_FTHD0, port_base + HOST_CTL); + writew(IDMA_CTL_GO, port_base + PORT_IDMA_CTL); + writeb(0, port_base + PORT_CPB_PTQFIFO); + + return 0; + } /* Issuing a command to yet uninitialized port locks up the * controller. Most of the time, this happens for the first @@ -564,9 +746,15 @@ static void inic_dev_config(struct ata_device *dev) static void init_port(struct ata_port *ap) { void __iomem *port_base = inic_port_base(ap); + struct inic_port_priv *pp = ap->private_data; - /* Setup PRD address */ + /* clear packet and CPB table */ + memset(pp->pkt, 0, sizeof(struct inic_pkt)); + memset(pp->cpb_tbl, 0, IDMA_CPB_TBL_SIZE); + + /* setup PRD and CPB lookup table addresses */ writel(ap->prd_dma, port_base + PORT_PRD_ADDR); + writel(pp->cpb_tbl_dma, port_base + PORT_CPB_CPBLAR); } static int inic_port_resume(struct ata_port *ap) @@ -578,12 +766,13 @@ static int inic_port_resume(struct ata_port *ap) static int inic_port_start(struct ata_port *ap) { void __iomem *port_base = inic_port_base(ap); + struct device *dev = ap->host->dev; struct inic_port_priv *pp; u8 tmp; int rc; /* alloc and initialize private data */ - pp = devm_kzalloc(ap->host->dev, sizeof(*pp), GFP_KERNEL); + pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL); if (!pp) return -ENOMEM; ap->private_data = pp; @@ -598,6 +787,16 @@ static int inic_port_start(struct ata_port *ap) if (rc) return rc; + pp->pkt = dmam_alloc_coherent(dev, sizeof(struct inic_pkt), + &pp->pkt_dma, GFP_KERNEL); + if (!pp->pkt) + return -ENOMEM; + + pp->cpb_tbl = dmam_alloc_coherent(dev, IDMA_CPB_TBL_SIZE, + &pp->cpb_tbl_dma, GFP_KERNEL); + if (!pp->cpb_tbl) + return -ENOMEM; + init_port(ap); return 0; @@ -610,6 +809,7 @@ static struct ata_port_operations inic_port_ops = { .bmdma_start = inic_bmdma_start, .bmdma_stop = inic_bmdma_stop, .bmdma_status = inic_bmdma_status, + .qc_prep = inic_qc_prep, .qc_issue = inic_qc_issue, .qc_fill_rtf = inic_qc_fill_rtf, -- cgit v1.2.3-70-g09d2 From ab5b0235c4e819c9bc45fa62c99f9fe49e73e701 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 30 Apr 2008 16:35:12 +0900 Subject: sata_inic162x: kill now unused bmdma related stuff sata_inic162x doesn't use BMDMA anymore. Kill bmdma related stuff. * prdctl manipulation * port IRQ mask manipulation * inherit ATA_BASE_SHT instead of ATA_BMDMA_SHT * BMDMA methods Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/sata_inic162x.c | 103 +++----------------------------------------- 1 file changed, 5 insertions(+), 98 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index db57f34d221..3ca0ee93bc1 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -101,9 +101,7 @@ enum { PIRQ_PENDING = (1 << 7), /* port IRQ pending (STAT only) */ PIRQ_ERR = PIRQ_OFFLINE | PIRQ_ONLINE | PIRQ_FATAL, - - PIRQ_MASK_DMA_READ = PIRQ_REPLY | PIRQ_ATA, - PIRQ_MASK_OTHER = PIRQ_REPLY | PIRQ_COMPLETE, + PIRQ_MASK_DEFAULT = PIRQ_REPLY, PIRQ_MASK_FREEZE = 0xff, /* PORT_PRD_CTL bits */ @@ -206,13 +204,11 @@ struct inic_port_priv { dma_addr_t pkt_dma; u32 *cpb_tbl; dma_addr_t cpb_tbl_dma; - u8 dfl_prdctl; - u8 cached_prdctl; - u8 cached_pirq_mask; }; static struct scsi_host_template inic_sht = { - ATA_BMDMA_SHT(DRV_NAME), + ATA_BASE_SHT(DRV_NAME), + .sg_tablesize = LIBATA_MAX_PRD, /* maybe it can be larger? */ .dma_boundary = INIC_DMA_BOUNDARY, }; @@ -227,23 +223,6 @@ static void __iomem *inic_port_base(struct ata_port *ap) return ap->host->iomap[MMIO_BAR] + ap->port_no * PORT_SIZE; } -static void __inic_set_pirq_mask(struct ata_port *ap, u8 mask) -{ - void __iomem *port_base = inic_port_base(ap); - struct inic_port_priv *pp = ap->private_data; - - writeb(mask, port_base + PORT_IRQ_MASK); - pp->cached_pirq_mask = mask; -} - -static void inic_set_pirq_mask(struct ata_port *ap, u8 mask) -{ - struct inic_port_priv *pp = ap->private_data; - - if (pp->cached_pirq_mask != mask) - __inic_set_pirq_mask(ap, mask); -} - static void inic_reset_port(void __iomem *port_base) { void __iomem *idma_ctl = port_base + PORT_IDMA_CTL; @@ -297,63 +276,6 @@ static int inic_scr_write(struct ata_port *ap, unsigned sc_reg, u32 val) return 0; } -/* - * In TF mode, inic162x is very similar to SFF device. TF registers - * function the same. DMA engine behaves similary using the same PRD - * format as BMDMA but different command register, interrupt and event - * notification methods are used. The following inic_bmdma_*() - * functions do the impedance matching. - */ -static void inic_bmdma_setup(struct ata_queued_cmd *qc) -{ - struct ata_port *ap = qc->ap; - struct inic_port_priv *pp = ap->private_data; - void __iomem *port_base = inic_port_base(ap); - int rw = qc->tf.flags & ATA_TFLAG_WRITE; - - /* make sure device sees PRD table writes */ - wmb(); - - /* load transfer length */ - writel(qc->nbytes, port_base + PORT_PRD_XFERLEN); - - /* turn on DMA and specify data direction */ - pp->cached_prdctl = pp->dfl_prdctl | PRD_CTL_DMAEN; - if (!rw) - pp->cached_prdctl |= PRD_CTL_WR; - writeb(pp->cached_prdctl, port_base + PORT_PRD_CTL); - - /* issue r/w command */ - ap->ops->sff_exec_command(ap, &qc->tf); -} - -static void inic_bmdma_start(struct ata_queued_cmd *qc) -{ - struct ata_port *ap = qc->ap; - struct inic_port_priv *pp = ap->private_data; - void __iomem *port_base = inic_port_base(ap); - - /* start host DMA transaction */ - pp->cached_prdctl |= PRD_CTL_START; - writeb(pp->cached_prdctl, port_base + PORT_PRD_CTL); -} - -static void inic_bmdma_stop(struct ata_queued_cmd *qc) -{ - struct ata_port *ap = qc->ap; - struct inic_port_priv *pp = ap->private_data; - void __iomem *port_base = inic_port_base(ap); - - /* stop DMA engine */ - writeb(pp->dfl_prdctl, port_base + PORT_PRD_CTL); -} - -static u8 inic_bmdma_status(struct ata_port *ap) -{ - /* event is already verified by the interrupt handler */ - return ATA_DMA_INTR; -} - static void inic_stop_idma(struct ata_port *ap) { void __iomem *port_base = inic_port_base(ap); @@ -631,8 +553,7 @@ static void inic_freeze(struct ata_port *ap) { void __iomem *port_base = inic_port_base(ap); - __inic_set_pirq_mask(ap, PIRQ_MASK_FREEZE); - + writeb(PIRQ_MASK_FREEZE, port_base + PORT_IRQ_MASK); ap->ops->sff_check_status(ap); writeb(0xff, port_base + PORT_IRQ_STAT); } @@ -643,8 +564,7 @@ static void inic_thaw(struct ata_port *ap) ap->ops->sff_check_status(ap); writeb(0xff, port_base + PORT_IRQ_STAT); - - __inic_set_pirq_mask(ap, PIRQ_MASK_OTHER); + writeb(PIRQ_MASK_DEFAULT, port_base + PORT_IRQ_MASK); } static int inic_check_ready(struct ata_link *link) @@ -707,7 +627,6 @@ static int inic_hardreset(struct ata_link *link, unsigned int *class, static void inic_error_handler(struct ata_port *ap) { void __iomem *port_base = inic_port_base(ap); - struct inic_port_priv *pp = ap->private_data; unsigned long flags; /* reset PIO HSM and stop DMA engine */ @@ -715,7 +634,6 @@ static void inic_error_handler(struct ata_port *ap) spin_lock_irqsave(ap->lock, flags); ap->hsm_task_state = HSM_ST_IDLE; - writeb(pp->dfl_prdctl, port_base + PORT_PRD_CTL); spin_unlock_irqrestore(ap->lock, flags); /* PIO and DMA engines have been stopped, perform recovery */ @@ -765,10 +683,8 @@ static int inic_port_resume(struct ata_port *ap) static int inic_port_start(struct ata_port *ap) { - void __iomem *port_base = inic_port_base(ap); struct device *dev = ap->host->dev; struct inic_port_priv *pp; - u8 tmp; int rc; /* alloc and initialize private data */ @@ -777,11 +693,6 @@ static int inic_port_start(struct ata_port *ap) return -ENOMEM; ap->private_data = pp; - /* default PRD_CTL value, DMAEN, WR and START off */ - tmp = readb(port_base + PORT_PRD_CTL); - tmp &= ~(PRD_CTL_DMAEN | PRD_CTL_WR | PRD_CTL_START); - pp->dfl_prdctl = tmp; - /* Alloc resources */ rc = ata_port_start(ap); if (rc) @@ -805,10 +716,6 @@ static int inic_port_start(struct ata_port *ap) static struct ata_port_operations inic_port_ops = { .inherits = &ata_sff_port_ops, - .bmdma_setup = inic_bmdma_setup, - .bmdma_start = inic_bmdma_start, - .bmdma_stop = inic_bmdma_stop, - .bmdma_status = inic_bmdma_status, .qc_prep = inic_qc_prep, .qc_issue = inic_qc_issue, .qc_fill_rtf = inic_qc_fill_rtf, -- cgit v1.2.3-70-g09d2 From 049e8e04986bde66df9648d88d0960ab4cbd6992 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 30 Apr 2008 16:35:13 +0900 Subject: sata_inic162x: use IDMA for non DMA ATA commands Use IDMA for PIO and non-data commands. This allows sata_inic162x to safely drive LBA48 devices. Kill inic_dev_config() which contains code to reject LBA48 devices. With this change, status checking in inic_qc_issue() to avoid hard lock up after hotplug can go away too. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/sata_inic162x.c | 49 ++++++++++++++------------------------------- 1 file changed, 15 insertions(+), 34 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index 3ca0ee93bc1..579154c2790 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -356,12 +356,12 @@ static void inic_host_intr(struct ata_port *ap) if (unlikely((irq_stat & PIRQ_ERR) || (idma_stat & IDMA_STAT_ERR))) inic_host_err_intr(ap, irq_stat, idma_stat); - if (unlikely(!qc || (qc->tf.flags & ATA_TFLAG_POLLING))) { + if (unlikely(!qc)) { ap->ops->sff_check_status(ap); /* clear ATA interrupt */ goto spurious; } - if (qc->tf.protocol == ATA_PROT_DMA) { + if (!ata_is_atapi(qc->tf.protocol)) { if (likely(idma_stat & IDMA_STAT_DONE)) { inic_stop_idma(ap); @@ -425,11 +425,14 @@ static void inic_fill_sg(struct inic_prd *prd, struct ata_queued_cmd *qc) { struct scatterlist *sg; unsigned int si; - u8 flags = PRD_DMA; + u8 flags = 0; if (qc->tf.flags & ATA_TFLAG_WRITE) flags |= PRD_WRITE; + if (ata_is_dma(qc->tf.protocol)) + flags |= PRD_DMA; + for_each_sg(qc->sg, sg, qc->n_elem, si) { prd->mad = cpu_to_le32(sg_dma_address(sg)); prd->len = cpu_to_le16(sg_dma_len(sg)); @@ -447,16 +450,20 @@ static void inic_qc_prep(struct ata_queued_cmd *qc) struct inic_pkt *pkt = pp->pkt; struct inic_cpb *cpb = &pkt->cpb; struct inic_prd *prd = pkt->prd; + bool is_atapi = ata_is_atapi(qc->tf.protocol); + bool is_data = ata_is_data(qc->tf.protocol); VPRINTK("ENTER\n"); - if (qc->tf.protocol != ATA_PROT_DMA) + if (is_atapi) return; /* prepare packet, based on initio driver */ memset(pkt, 0, sizeof(struct inic_pkt)); - cpb->ctl_flags = CPB_CTL_VALID | CPB_CTL_IEN | CPB_CTL_DATA; + cpb->ctl_flags = CPB_CTL_VALID | CPB_CTL_IEN; + if (is_data) + cpb->ctl_flags |= CPB_CTL_DATA; cpb->len = cpu_to_le32(qc->nbytes); cpb->prd = cpu_to_le32(pp->pkt_dma + offsetof(struct inic_pkt, prd)); @@ -480,7 +487,8 @@ static void inic_qc_prep(struct ata_queued_cmd *qc) /* don't load ctl - dunno why. it's like that in the initio driver */ /* setup sg table */ - inic_fill_sg(prd, qc); + if (is_data) + inic_fill_sg(prd, qc); pp->cpb_tbl[0] = pp->pkt_dma; } @@ -490,7 +498,7 @@ static unsigned int inic_qc_issue(struct ata_queued_cmd *qc) struct ata_port *ap = qc->ap; void __iomem *port_base = inic_port_base(ap); - if (qc->tf.protocol == ATA_PROT_DMA) { + if (!ata_is_atapi(qc->tf.protocol)) { /* fire up the ADMA engine */ writew(HCTL_FTHD0, port_base + HOST_CTL); writew(IDMA_CTL_GO, port_base + PORT_IDMA_CTL); @@ -499,18 +507,6 @@ static unsigned int inic_qc_issue(struct ata_queued_cmd *qc) return 0; } - /* Issuing a command to yet uninitialized port locks up the - * controller. Most of the time, this happens for the first - * command after reset which are ATA and ATAPI IDENTIFYs. - * Fast fail if stat is 0x7f or 0xff for those commands. - */ - if (unlikely(qc->tf.command == ATA_CMD_ID_ATA || - qc->tf.command == ATA_CMD_ID_ATAPI)) { - u8 stat = ap->ops->sff_check_status(ap); - if (stat == 0x7f || stat == 0xff) - return AC_ERR_HSM; - } - return ata_sff_qc_issue(qc); } @@ -647,20 +643,6 @@ static void inic_post_internal_cmd(struct ata_queued_cmd *qc) inic_reset_port(inic_port_base(qc->ap)); } -static void inic_dev_config(struct ata_device *dev) -{ - /* inic can only handle upto LBA28 max sectors */ - if (dev->max_sectors > ATA_MAX_SECTORS) - dev->max_sectors = ATA_MAX_SECTORS; - - if (dev->n_sectors >= 1 << 28) { - ata_dev_printk(dev, KERN_ERR, - "ERROR: This driver doesn't support LBA48 yet and may cause\n" - " data corruption on such devices. Disabling.\n"); - ata_dev_disable(dev); - } -} - static void init_port(struct ata_port *ap) { void __iomem *port_base = inic_port_base(ap); @@ -726,7 +708,6 @@ static struct ata_port_operations inic_port_ops = { .hardreset = inic_hardreset, .error_handler = inic_error_handler, .post_internal_cmd = inic_post_internal_cmd, - .dev_config = inic_dev_config, .scr_read = inic_scr_read, .scr_write = inic_scr_write, -- cgit v1.2.3-70-g09d2 From b3f677e501a494aa1582d4ff35fb3ac6f0a59b08 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 30 Apr 2008 16:35:14 +0900 Subject: sata_inic162x: use IDMA for ATAPI commands Use IDMA for ATAPI commands. Write and some misc commands time out when executed using ATAPI_PROT_DMA but ATAPI_PROT_PIO works fine. As PIO is driven by DMA too, it doesn't make any noticeable difference for native SATA devices. inic_check_atapi_dma() is implemented to force PIO for those ATAPI commands. After this change, sata_inic162x issues all commands using IDMA. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/sata_inic162x.c | 81 ++++++++++++++++++++++++++------------------- 1 file changed, 47 insertions(+), 34 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index 579154c2790..cdae435620f 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -192,7 +192,8 @@ struct inic_prd { struct inic_pkt { struct inic_cpb cpb; - struct inic_prd prd[LIBATA_MAX_PRD]; + struct inic_prd prd[LIBATA_MAX_PRD + 1]; /* + 1 for cdb */ + u8 cdb[ATAPI_CDB_LEN]; } __packed; struct inic_host_priv { @@ -361,23 +362,18 @@ static void inic_host_intr(struct ata_port *ap) goto spurious; } - if (!ata_is_atapi(qc->tf.protocol)) { - if (likely(idma_stat & IDMA_STAT_DONE)) { - inic_stop_idma(ap); + if (likely(idma_stat & IDMA_STAT_DONE)) { + inic_stop_idma(ap); - /* Depending on circumstances, device error - * isn't reported by IDMA, check it explicitly. - */ - if (unlikely(readb(port_base + PORT_TF_COMMAND) & - (ATA_DF | ATA_ERR))) - qc->err_mask |= AC_ERR_DEV; + /* Depending on circumstances, device error + * isn't reported by IDMA, check it explicitly. + */ + if (unlikely(readb(port_base + PORT_TF_COMMAND) & + (ATA_DF | ATA_ERR))) + qc->err_mask |= AC_ERR_DEV; - ata_qc_complete(qc); - return; - } - } else { - if (likely(ata_sff_host_intr(ap, qc))) - return; + ata_qc_complete(qc); + return; } spurious: @@ -421,6 +417,19 @@ static irqreturn_t inic_interrupt(int irq, void *dev_instance) return IRQ_RETVAL(handled); } +static int inic_check_atapi_dma(struct ata_queued_cmd *qc) +{ + /* For some reason ATAPI_PROT_DMA doesn't work for some + * commands including writes and other misc ops. Use PIO + * protocol instead, which BTW is driven by the DMA engine + * anyway, so it shouldn't make much difference for native + * SATA devices. + */ + if (atapi_cmd_type(qc->cdb[0]) == READ) + return 0; + return 1; +} + static void inic_fill_sg(struct inic_prd *prd, struct ata_queued_cmd *qc) { struct scatterlist *sg; @@ -452,20 +461,21 @@ static void inic_qc_prep(struct ata_queued_cmd *qc) struct inic_prd *prd = pkt->prd; bool is_atapi = ata_is_atapi(qc->tf.protocol); bool is_data = ata_is_data(qc->tf.protocol); + unsigned int cdb_len = 0; VPRINTK("ENTER\n"); if (is_atapi) - return; + cdb_len = qc->dev->cdb_len; /* prepare packet, based on initio driver */ memset(pkt, 0, sizeof(struct inic_pkt)); cpb->ctl_flags = CPB_CTL_VALID | CPB_CTL_IEN; - if (is_data) + if (is_atapi || is_data) cpb->ctl_flags |= CPB_CTL_DATA; - cpb->len = cpu_to_le32(qc->nbytes); + cpb->len = cpu_to_le32(qc->nbytes + cdb_len); cpb->prd = cpu_to_le32(pp->pkt_dma + offsetof(struct inic_pkt, prd)); cpb->device = qc->tf.device; @@ -486,6 +496,18 @@ static void inic_qc_prep(struct ata_queued_cmd *qc) cpb->command = qc->tf.command; /* don't load ctl - dunno why. it's like that in the initio driver */ + /* setup PRD for CDB */ + if (is_atapi) { + memcpy(pkt->cdb, qc->cdb, ATAPI_CDB_LEN); + prd->mad = cpu_to_le32(pp->pkt_dma + + offsetof(struct inic_pkt, cdb)); + prd->len = cpu_to_le16(cdb_len); + prd->flags = PRD_CDB | PRD_WRITE; + if (!is_data) + prd->flags |= PRD_END; + prd++; + } + /* setup sg table */ if (is_data) inic_fill_sg(prd, qc); @@ -498,16 +520,12 @@ static unsigned int inic_qc_issue(struct ata_queued_cmd *qc) struct ata_port *ap = qc->ap; void __iomem *port_base = inic_port_base(ap); - if (!ata_is_atapi(qc->tf.protocol)) { - /* fire up the ADMA engine */ - writew(HCTL_FTHD0, port_base + HOST_CTL); - writew(IDMA_CTL_GO, port_base + PORT_IDMA_CTL); - writeb(0, port_base + PORT_CPB_PTQFIFO); - - return 0; - } + /* fire up the ADMA engine */ + writew(HCTL_FTHD0, port_base + HOST_CTL); + writew(IDMA_CTL_GO, port_base + PORT_IDMA_CTL); + writeb(0, port_base + PORT_CPB_PTQFIFO); - return ata_sff_qc_issue(qc); + return 0; } static void inic_tf_read(struct ata_port *ap, struct ata_taskfile *tf) @@ -698,6 +716,7 @@ static int inic_port_start(struct ata_port *ap) static struct ata_port_operations inic_port_ops = { .inherits = &ata_sff_port_ops, + .check_atapi_dma = inic_check_atapi_dma, .qc_prep = inic_qc_prep, .qc_issue = inic_qc_issue, .qc_fill_rtf = inic_qc_fill_rtf, @@ -717,12 +736,6 @@ static struct ata_port_operations inic_port_ops = { }; static struct ata_port_info inic_port_info = { - /* For some reason, ATAPI_PROT_PIO is broken on this - * controller, and no, PIO_POLLING does't fix it. It somehow - * manages to report the wrong ireason and ignoring ireason - * results in machine lock up. Tell libata to always prefer - * DMA. - */ .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA, .pio_mask = 0x1f, /* pio0-4 */ .mwdma_mask = 0x07, /* mwdma0-2 */ -- cgit v1.2.3-70-g09d2 From f8b0685a8ea8e3974f8953378ede2111f8d49d22 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 30 Apr 2008 16:35:15 +0900 Subject: sata_inic162x: kill now unused SFF related stuff sata_inic162x now doesn't use any SFF features. Remove all SFF related stuff. * Mask unsolicited ATA interrupts. This removes our primary source of spurious interrupts and spurious interrupt handling can be tightened up. There's no need to clear ATA interrupts by reading status register either. * Don't dance with IDMA_CTL_ATA_NIEN and simplify accesses to IDMA_CTL. * Inherit from sata_port_ops instead of ata_sff_port_ops. * Don't initialize or use ioaddr. There's no need to map BAR0-4 anymore. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/sata_inic162x.c | 69 ++++++++++++--------------------------------- 1 file changed, 18 insertions(+), 51 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index cdae435620f..55f8e93ac48 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -101,7 +101,7 @@ enum { PIRQ_PENDING = (1 << 7), /* port IRQ pending (STAT only) */ PIRQ_ERR = PIRQ_OFFLINE | PIRQ_ONLINE | PIRQ_FATAL, - PIRQ_MASK_DEFAULT = PIRQ_REPLY, + PIRQ_MASK_DEFAULT = PIRQ_REPLY | PIRQ_ATA, PIRQ_MASK_FREEZE = 0xff, /* PORT_PRD_CTL bits */ @@ -227,31 +227,26 @@ static void __iomem *inic_port_base(struct ata_port *ap) static void inic_reset_port(void __iomem *port_base) { void __iomem *idma_ctl = port_base + PORT_IDMA_CTL; - u16 ctl; - ctl = readw(idma_ctl); - ctl &= ~(IDMA_CTL_RST_IDMA | IDMA_CTL_ATA_NIEN | IDMA_CTL_GO); + /* stop IDMA engine */ + readw(idma_ctl); /* flush */ + msleep(1); /* mask IRQ and assert reset */ - writew(ctl | IDMA_CTL_RST_IDMA | IDMA_CTL_ATA_NIEN, idma_ctl); + writew(IDMA_CTL_RST_IDMA, idma_ctl); readw(idma_ctl); /* flush */ - - /* give it some time */ msleep(1); /* release reset */ - writew(ctl | IDMA_CTL_ATA_NIEN, idma_ctl); + writew(0, idma_ctl); /* clear irq */ writeb(0xff, port_base + PORT_IRQ_STAT); - - /* reenable ATA IRQ, turn off IDMA mode */ - writew(ctl, idma_ctl); } static int inic_scr_read(struct ata_port *ap, unsigned sc_reg, u32 *val) { - void __iomem *scr_addr = ap->ioaddr.scr_addr; + void __iomem *scr_addr = inic_port_base(ap) + PORT_SCR; void __iomem *addr; if (unlikely(sc_reg >= ARRAY_SIZE(scr_map))) @@ -268,7 +263,7 @@ static int inic_scr_read(struct ata_port *ap, unsigned sc_reg, u32 *val) static int inic_scr_write(struct ata_port *ap, unsigned sc_reg, u32 val) { - void __iomem *scr_addr = ap->ioaddr.scr_addr; + void __iomem *scr_addr = inic_port_base(ap) + PORT_SCR; if (unlikely(sc_reg >= ARRAY_SIZE(scr_map))) return -EINVAL; @@ -357,10 +352,8 @@ static void inic_host_intr(struct ata_port *ap) if (unlikely((irq_stat & PIRQ_ERR) || (idma_stat & IDMA_STAT_ERR))) inic_host_err_intr(ap, irq_stat, idma_stat); - if (unlikely(!qc)) { - ap->ops->sff_check_status(ap); /* clear ATA interrupt */ + if (unlikely(!qc)) goto spurious; - } if (likely(idma_stat & IDMA_STAT_DONE)) { inic_stop_idma(ap); @@ -377,7 +370,9 @@ static void inic_host_intr(struct ata_port *ap) } spurious: - ap->ops->sff_check_status(ap); /* clear ATA interrupt */ + ata_port_printk(ap, KERN_WARNING, "unhandled interrupt: " + "cmd=0x%x irq_stat=0x%x idma_stat=0x%x\n", + qc ? qc->tf.command : 0xff, irq_stat, idma_stat); } static irqreturn_t inic_interrupt(int irq, void *dev_instance) @@ -568,7 +563,6 @@ static void inic_freeze(struct ata_port *ap) void __iomem *port_base = inic_port_base(ap); writeb(PIRQ_MASK_FREEZE, port_base + PORT_IRQ_MASK); - ap->ops->sff_check_status(ap); writeb(0xff, port_base + PORT_IRQ_STAT); } @@ -576,7 +570,6 @@ static void inic_thaw(struct ata_port *ap) { void __iomem *port_base = inic_port_base(ap); - ap->ops->sff_check_status(ap); writeb(0xff, port_base + PORT_IRQ_STAT); writeb(PIRQ_MASK_DEFAULT, port_base + PORT_IRQ_MASK); } @@ -599,17 +592,15 @@ static int inic_hardreset(struct ata_link *link, unsigned int *class, void __iomem *port_base = inic_port_base(ap); void __iomem *idma_ctl = port_base + PORT_IDMA_CTL; const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context); - u16 val; int rc; /* hammer it into sane state */ inic_reset_port(port_base); - val = readw(idma_ctl); - writew(val | IDMA_CTL_RST_ATA, idma_ctl); + writew(IDMA_CTL_RST_ATA, idma_ctl); readw(idma_ctl); /* flush */ msleep(1); - writew(val & ~IDMA_CTL_RST_ATA, idma_ctl); + writew(0, idma_ctl); rc = sata_link_resume(link, timing, deadline); if (rc) { @@ -641,16 +632,8 @@ static int inic_hardreset(struct ata_link *link, unsigned int *class, static void inic_error_handler(struct ata_port *ap) { void __iomem *port_base = inic_port_base(ap); - unsigned long flags; - /* reset PIO HSM and stop DMA engine */ inic_reset_port(port_base); - - spin_lock_irqsave(ap->lock, flags); - ap->hsm_task_state = HSM_ST_IDLE; - spin_unlock_irqrestore(ap->lock, flags); - - /* PIO and DMA engines have been stopped, perform recovery */ ata_std_error_handler(ap); } @@ -714,7 +697,7 @@ static int inic_port_start(struct ata_port *ap) } static struct ata_port_operations inic_port_ops = { - .inherits = &ata_sff_port_ops, + .inherits = &sata_port_ops, .check_atapi_dma = inic_check_atapi_dma, .qc_prep = inic_qc_prep, @@ -723,7 +706,6 @@ static struct ata_port_operations inic_port_ops = { .freeze = inic_freeze, .thaw = inic_thaw, - .softreset = ATA_OP_NULL, /* softreset is broken */ .hardreset = inic_hardreset, .error_handler = inic_error_handler, .post_internal_cmd = inic_post_internal_cmd, @@ -832,34 +814,19 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) return rc; - rc = pcim_iomap_regions(pdev, 0x3f, DRV_NAME); + rc = pcim_iomap_regions(pdev, 1 << MMIO_BAR, DRV_NAME); if (rc) return rc; host->iomap = iomap = pcim_iomap_table(pdev); + hpriv->cached_hctl = readw(iomap[MMIO_BAR] + HOST_CTL); for (i = 0; i < NR_PORTS; i++) { struct ata_port *ap = host->ports[i]; - struct ata_ioports *port = &ap->ioaddr; - unsigned int offset = i * PORT_SIZE; - - port->cmd_addr = iomap[2 * i]; - port->altstatus_addr = - port->ctl_addr = (void __iomem *) - ((unsigned long)iomap[2 * i + 1] | ATA_PCI_CTL_OFS); - port->scr_addr = iomap[MMIO_BAR] + offset + PORT_SCR; - - ata_sff_std_ports(port); ata_port_pbar_desc(ap, MMIO_BAR, -1, "mmio"); - ata_port_pbar_desc(ap, MMIO_BAR, offset, "port"); - ata_port_desc(ap, "cmd 0x%llx ctl 0x%llx", - (unsigned long long)pci_resource_start(pdev, 2 * i), - (unsigned long long)pci_resource_start(pdev, (2 * i + 1)) | - ATA_PCI_CTL_OFS); + ata_port_pbar_desc(ap, MMIO_BAR, i * PORT_SIZE, "port"); } - hpriv->cached_hctl = readw(iomap[MMIO_BAR] + HOST_CTL); - /* Set dma_mask. This devices doesn't support 64bit addressing. */ rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); if (rc) { -- cgit v1.2.3-70-g09d2 From ba66b242b1c3432b44d893c64124522b3bdce71e Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 30 Apr 2008 16:35:16 +0900 Subject: sata_inic162x: add cardbus support When attached to cardbus, mmio region is at BAR 1. Other than that, everything else is the same. Add support for it. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/sata_inic162x.c | 36 ++++++++++++++++++++++++------------ 1 file changed, 24 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index 55f8e93ac48..8c1f06a3c8f 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -31,7 +31,8 @@ #define DRV_VERSION "0.3" enum { - MMIO_BAR = 5, + MMIO_BAR_PCI = 5, + MMIO_BAR_CARDBUS = 1, NR_PORTS = 2, @@ -197,6 +198,7 @@ struct inic_pkt { } __packed; struct inic_host_priv { + void __iomem *mmio_base; u16 cached_hctl; }; @@ -221,7 +223,9 @@ static const int scr_map[] = { static void __iomem *inic_port_base(struct ata_port *ap) { - return ap->host->iomap[MMIO_BAR] + ap->port_no * PORT_SIZE; + struct inic_host_priv *hpriv = ap->host->private_data; + + return hpriv->mmio_base + ap->port_no * PORT_SIZE; } static void inic_reset_port(void __iomem *port_base) @@ -378,11 +382,11 @@ static void inic_host_intr(struct ata_port *ap) static irqreturn_t inic_interrupt(int irq, void *dev_instance) { struct ata_host *host = dev_instance; - void __iomem *mmio_base = host->iomap[MMIO_BAR]; + struct inic_host_priv *hpriv = host->private_data; u16 host_irq_stat; int i, handled = 0;; - host_irq_stat = readw(mmio_base + HOST_IRQ_STAT); + host_irq_stat = readw(hpriv->mmio_base + HOST_IRQ_STAT); if (unlikely(!(host_irq_stat & HIRQ_GLOBAL))) goto out; @@ -770,7 +774,6 @@ static int inic_pci_device_resume(struct pci_dev *pdev) { struct ata_host *host = dev_get_drvdata(&pdev->dev); struct inic_host_priv *hpriv = host->private_data; - void __iomem *mmio_base = host->iomap[MMIO_BAR]; int rc; rc = ata_pci_device_do_resume(pdev); @@ -778,7 +781,7 @@ static int inic_pci_device_resume(struct pci_dev *pdev) return rc; if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) { - rc = init_controller(mmio_base, hpriv->cached_hctl); + rc = init_controller(hpriv->mmio_base, hpriv->cached_hctl); if (rc) return rc; } @@ -796,6 +799,7 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) struct ata_host *host; struct inic_host_priv *hpriv; void __iomem * const *iomap; + int mmio_bar; int i, rc; if (!printed_version++) @@ -809,22 +813,30 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) host->private_data = hpriv; - /* acquire resources and fill host */ + /* Acquire resources and fill host. Note that PCI and cardbus + * use different BARs. + */ rc = pcim_enable_device(pdev); if (rc) return rc; - rc = pcim_iomap_regions(pdev, 1 << MMIO_BAR, DRV_NAME); + if (pci_resource_flags(pdev, MMIO_BAR_PCI) & IORESOURCE_MEM) + mmio_bar = MMIO_BAR_PCI; + else + mmio_bar = MMIO_BAR_CARDBUS; + + rc = pcim_iomap_regions(pdev, 1 << mmio_bar, DRV_NAME); if (rc) return rc; host->iomap = iomap = pcim_iomap_table(pdev); - hpriv->cached_hctl = readw(iomap[MMIO_BAR] + HOST_CTL); + hpriv->mmio_base = iomap[mmio_bar]; + hpriv->cached_hctl = readw(hpriv->mmio_base + HOST_CTL); for (i = 0; i < NR_PORTS; i++) { struct ata_port *ap = host->ports[i]; - ata_port_pbar_desc(ap, MMIO_BAR, -1, "mmio"); - ata_port_pbar_desc(ap, MMIO_BAR, i * PORT_SIZE, "port"); + ata_port_pbar_desc(ap, mmio_bar, -1, "mmio"); + ata_port_pbar_desc(ap, mmio_bar, i * PORT_SIZE, "port"); } /* Set dma_mask. This devices doesn't support 64bit addressing. */ @@ -854,7 +866,7 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) return rc; } - rc = init_controller(iomap[MMIO_BAR], hpriv->cached_hctl); + rc = init_controller(hpriv->mmio_base, hpriv->cached_hctl); if (rc) { dev_printk(KERN_ERR, &pdev->dev, "failed to initialize controller\n"); -- cgit v1.2.3-70-g09d2 From 22bfc6d5e19b72d50535ce32fd6dee2ce2e75775 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 30 Apr 2008 16:35:17 +0900 Subject: sata_inic162x: update intro comment, up the version and drop EXPERIMENTAL sata_inic162x is now ready for production use. Bump the version, explain what's working and what's not and drop EXPERIMENTAL. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/Kconfig | 4 ++-- drivers/ata/sata_inic162x.c | 36 ++++++++++++++++++++++++++++-------- 2 files changed, 30 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 1a59f305f7d..9bf2986a278 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -205,8 +205,8 @@ config SATA_VITESSE If unsure, say N. config SATA_INIC162X - tristate "Initio 162x SATA support (HIGHLY EXPERIMENTAL)" - depends on PCI && EXPERIMENTAL + tristate "Initio 162x SATA support" + depends on PCI help This option enables support for Initio 162x Serial ATA. diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index 8c1f06a3c8f..3ead02fe379 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -10,13 +10,33 @@ * right. Documentation is available at initio's website but it only * documents registers (not programming model). * - * - ATA disks work. - * - Hotplug works. - * - ATAPI read works but burning doesn't. This thing is really - * peculiar about ATAPI and I couldn't figure out how ATAPI PIO and - * ATAPI DMA WRITE should be programmed. If you've got a clue, be - * my guest. - * - Both STR and STD work. + * This driver has interesting history. The first version was written + * from the documentation and a 2.4 IDE driver posted on a Taiwan + * company, which didn't use any IDMA features and couldn't handle + * LBA48. The resulting driver couldn't handle LBA48 devices either + * making it pretty useless. + * + * After a while, initio picked the driver up, renamed it to + * sata_initio162x, updated it to use IDMA for ATA DMA commands and + * posted it on their website. It only used ATA_PROT_DMA for IDMA and + * attaching both devices and issuing IDMA and !IDMA commands + * simultaneously broke it due to PIRQ masking interaction but it did + * show how to use the IDMA (ADMA + some initio specific twists) + * engine. + * + * Then, I picked up their changes again and here's the usable driver + * which uses IDMA for everything. Everything works now including + * LBA48, CD/DVD burning, suspend/resume and hotplug. There are some + * issues tho. Result Tf is not resported properly, NCQ isn't + * supported yet and CD/DVD writing works with DMA assisted PIO + * protocol (which, for native SATA devices, shouldn't cause any + * noticeable difference). + * + * Anyways, so, here's finally a working driver for inic162x. Enjoy! + * + * initio: If you guys wanna improve the driver regarding result TF + * access and other stuff, please feel free to contact me. I'll be + * happy to assist. */ #include @@ -28,7 +48,7 @@ #include #define DRV_NAME "sata_inic162x" -#define DRV_VERSION "0.3" +#define DRV_VERSION "0.4" enum { MMIO_BAR_PCI = 5, -- cgit v1.2.3-70-g09d2 From 05177f178efe1459d2d0ac05430027ba201889a4 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Fri, 2 May 2008 15:13:39 -0700 Subject: pata_atiixp: Don't disable A couple of distributions (Fedora, Ubuntu) were having weird problems with the ATI IXP series PATA controllers being reported as simplex. At the heart of the problem is that both distros ignored the recommendations to load pata_acpi and ata_generic *AFTER* specific host drivers. The underlying cause however is that if you D3 and then D0 an ATI IXP it helpfully throws away some configuration and won't let you rewrite it. Add checks to ata_generic and pata_acpi to pin ATIIXP devices. Possibly the real answer here is to quirk them and pin them, but right now we can't do that before they've been pcim_enable()'d by a driver. I'm indebted to David Gero for this. His bug report not only reported the problem but identified the cause correctly and he had tested the right values to prove what was going on [If you backport this for 2.6.24 you will need to pull in the 2.6.25 removal of the bogus WARN_ON() in pcim_enagle] Signed-off-by: Alan Cox Tested-by: David Gero Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/ata/ata_generic.c | 6 ++++++ drivers/ata/pata_acpi.c | 6 ++++++ 2 files changed, 12 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c index 47aeccd52fa..75a406f5e69 100644 --- a/drivers/ata/ata_generic.c +++ b/drivers/ata/ata_generic.c @@ -152,6 +152,12 @@ static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id if (dev->vendor == PCI_VENDOR_ID_AL) ata_pci_bmdma_clear_simplex(dev); + if (dev->vendor == PCI_VENDOR_ID_ATI) { + int rc = pcim_enable_device(dev); + if (rc < 0) + return rc; + pcim_pin_device(dev); + } return ata_pci_sff_init_one(dev, ppi, &generic_sht, NULL); } diff --git a/drivers/ata/pata_acpi.c b/drivers/ata/pata_acpi.c index c5f91e62994..fbe60571155 100644 --- a/drivers/ata/pata_acpi.c +++ b/drivers/ata/pata_acpi.c @@ -259,6 +259,12 @@ static int pacpi_init_one (struct pci_dev *pdev, const struct pci_device_id *id) .port_ops = &pacpi_ops, }; const struct ata_port_info *ppi[] = { &info, NULL }; + if (pdev->vendor == PCI_VENDOR_ID_ATI) { + int rc = pcim_enable_device(pdev); + if (rc < 0) + return rc; + pcim_pin_device(pdev); + } return ata_pci_sff_init_one(pdev, ppi, &pacpi_sht, NULL); } -- cgit v1.2.3-70-g09d2 From 822973ba79fd5a5b711270c2de7196c6b50c6687 Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Fri, 2 May 2008 17:49:37 -0700 Subject: bonding: Do not call free_netdev for already registered device. If the call to bond_create_sysfs_entry in bond_create fails, the proper rollback is to call unregister_netdevice, not free_netdev. Otherwise - kernel BUG at net/core/dev.c:4057! Checked with artificial failures injected into bond_create_sysfs_entry. Pavel's original patch modified by Jay Vosburgh to move code around for clarity (remove goto-hopping within the unwind block). Signed-off-by: Pavel Emelyanov Signed-off-by: Jay Vosburgh Signed-off-by: Jeff Garzik --- drivers/net/bonding/bond_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 6425603bc37..5509732d3f9 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4936,7 +4936,9 @@ int bond_create(char *name, struct bond_params *params, struct bonding **newbond if (res < 0) { rtnl_lock(); down_write(&bonding_rwsem); - goto out_bond; + bond_deinit(bond_dev); + unregister_netdevice(bond_dev); + goto out_rtnl; } return 0; -- cgit v1.2.3-70-g09d2 From c4ebc66a1a8e3576322a9f47f0d06ec3c96a08d7 Mon Sep 17 00:00:00 2001 From: Jay Vosburgh Date: Fri, 2 May 2008 17:49:38 -0700 Subject: bonding: fix error unwind in bonding_store_bonds Fixed an error unwind in bonding_store_bonds that didn't release the locks it held, and consolidated unwinds into a common block at the end of the function. Bug reported by Pavel Emelyanov , who provided a different fix. Signed-off-by: Jay Vosburgh Signed-off-by: Jeff Garzik --- drivers/net/bonding/bond_sysfs.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 979c2d05ff9..68c41a00d93 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -146,29 +146,29 @@ static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t ": Unable remove bond %s due to open references.\n", ifname); res = -EPERM; - goto out; + goto out_unlock; } printk(KERN_INFO DRV_NAME ": %s is being deleted...\n", bond->dev->name); bond_destroy(bond); - up_write(&bonding_rwsem); - rtnl_unlock(); - goto out; + goto out_unlock; } printk(KERN_ERR DRV_NAME ": unable to delete non-existent bond %s\n", ifname); res = -ENODEV; - up_write(&bonding_rwsem); - rtnl_unlock(); - goto out; + goto out_unlock; } err_no_cmd: printk(KERN_ERR DRV_NAME ": no command found in bonding_masters. Use +ifname or -ifname.\n"); - res = -EPERM; + return -EPERM; + +out_unlock: + up_write(&bonding_rwsem); + rtnl_unlock(); /* Always return either count or an error. If you return 0, you'll * get called forever, which is bad. -- cgit v1.2.3-70-g09d2 From ae68c39819ddf30549652962768a50edae5eec6f Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Fri, 2 May 2008 17:49:39 -0700 Subject: bonding: Deadlock between bonding_store_bonds and bond_destroy_sysfs. The sysfs layer has an internal protection, that ensures, that all the process sitting inside ->sore/->show callback exits before the appropriate entry is unregistered (the calltraces are rather big, but I can provide them if required). On the other hand, bonding takes rtnl_lock in a) the bonding_store_bonds, i.e. in ->store callback, b) module exit before calling the sysfs unregister routines. Thus, the classical AB-BA deadlock may occur. To reproduce run # while :; do modprobe bonding; rmmod bonding; done and # while :; do echo '+bond%d' > /sys/class/net/bonding_masters ; done in parallel. The fix is to move the bond_destroy_sysfs out of the rtnl_lock, but _before_ bond_free_all to make sure no bonding devices exist after module unload. Signed-off-by: Pavel Emelyanov Acked-by: Jay Vosburgh Signed-off-by: Jeff Garzik --- drivers/net/bonding/bond_main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 5509732d3f9..e41b3e57260 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -4992,9 +4992,10 @@ err: destroy_workqueue(bond->wq); } + bond_destroy_sysfs(); + rtnl_lock(); bond_free_all(); - bond_destroy_sysfs(); rtnl_unlock(); out: return res; @@ -5006,9 +5007,10 @@ static void __exit bonding_exit(void) unregister_netdevice_notifier(&bond_netdev_notifier); unregister_inetaddr_notifier(&bond_inetaddr_notifier); + bond_destroy_sysfs(); + rtnl_lock(); bond_free_all(); - bond_destroy_sysfs(); rtnl_unlock(); } -- cgit v1.2.3-70-g09d2 From 569f0c4d909c7f73de634abcdc36344cb72de36a Mon Sep 17 00:00:00 2001 From: Jay Vosburgh Date: Fri, 2 May 2008 18:06:02 -0700 Subject: bonding: fix enslavement error unwinds As part of: commit c2edacf80e155ef54ae4774379d461b60896bc2e Author: Jay Vosburgh Date: Mon Jul 9 10:42:47 2007 -0700 bonding / ipv6: no addrconf for slaves separately from master two steps were rearranged in the enslavement process: netdev_set_master is now before the call to dev_open to open the slave. This patch updates the error cases and unwind process at the end of bond_enslave to match the new order. Without this patch, it is possible for the enslavement to fail, but leave the slave with IFF_SLAVE set in its flags. Signed-off-by: Jay Vosburgh Signed-off-by: Jeff Garzik --- drivers/net/bonding/bond_main.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index e41b3e57260..50a40e43315 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1425,13 +1425,13 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) res = netdev_set_master(slave_dev, bond_dev); if (res) { dprintk("Error %d calling netdev_set_master\n", res); - goto err_close; + goto err_restore_mac; } /* open the slave since the application closed it */ res = dev_open(slave_dev); if (res) { dprintk("Openning slave %s failed\n", slave_dev->name); - goto err_restore_mac; + goto err_unset_master; } new_slave->dev = slave_dev; @@ -1444,7 +1444,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) */ res = bond_alb_init_slave(bond, new_slave); if (res) { - goto err_unset_master; + goto err_close; } } @@ -1619,7 +1619,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) res = bond_create_slave_symlinks(bond_dev, slave_dev); if (res) - goto err_unset_master; + goto err_close; printk(KERN_INFO DRV_NAME ": %s: enslaving %s as a%s interface with a%s link.\n", @@ -1631,12 +1631,12 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) return 0; /* Undo stages on error */ -err_unset_master: - netdev_set_master(slave_dev, NULL); - err_close: dev_close(slave_dev); +err_unset_master: + netdev_set_master(slave_dev, NULL); + err_restore_mac: if (!bond->params.fail_over_mac) { memcpy(addr.sa_data, new_slave->perm_hwaddr, ETH_ALEN); -- cgit v1.2.3-70-g09d2 From f162b9d58273a9a5747211133c8ccb2de5cf5ff2 Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Fri, 2 May 2008 13:00:30 -0500 Subject: gianfar: Fix a locking bug in gianfar's sysfs code During sparse cleanup, found a locking bug. Some of the sysfs functions were acquiring a lock, and then returning in the event of an error. We rearrange the code so that the lock is released in error conditions, too. Signed-off-by: Andy Fleming Signed-off-by: Jeff Garzik --- drivers/net/gianfar.c | 5 +++-- drivers/net/gianfar.h | 3 +++ drivers/net/gianfar_sysfs.c | 10 ++++++---- 3 files changed, 12 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 587afe7be68..6f22f068d6e 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -138,6 +138,7 @@ static int gfar_poll(struct napi_struct *napi, int budget); static void gfar_netpoll(struct net_device *dev); #endif int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit); +static int gfar_clean_tx_ring(struct net_device *dev); static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb, int length); static void gfar_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp); @@ -1141,7 +1142,7 @@ static int gfar_close(struct net_device *dev) } /* Changes the mac address if the controller is not running. */ -int gfar_set_mac_address(struct net_device *dev) +static int gfar_set_mac_address(struct net_device *dev) { gfar_set_mac_for_addr(dev, 0, dev->dev_addr); @@ -1260,7 +1261,7 @@ static void gfar_timeout(struct net_device *dev) } /* Interrupt Handler for Transmit complete */ -int gfar_clean_tx_ring(struct net_device *dev) +static int gfar_clean_tx_ring(struct net_device *dev) { struct txbd8 *bdp; struct gfar_private *priv = netdev_priv(dev); diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h index fd487be3993..27f37c81e52 100644 --- a/drivers/net/gianfar.h +++ b/drivers/net/gianfar.h @@ -782,5 +782,8 @@ extern void gfar_halt(struct net_device *dev); extern void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev, int enable, u32 regnum, u32 read); void gfar_init_sysfs(struct net_device *dev); +int gfar_local_mdio_write(struct gfar_mii __iomem *regs, int mii_id, + int regnum, u16 value); +int gfar_local_mdio_read(struct gfar_mii __iomem *regs, int mii_id, int regnum); #endif /* __GIANFAR_H */ diff --git a/drivers/net/gianfar_sysfs.c b/drivers/net/gianfar_sysfs.c index 230878b9419..5116f68e01b 100644 --- a/drivers/net/gianfar_sysfs.c +++ b/drivers/net/gianfar_sysfs.c @@ -103,10 +103,10 @@ static ssize_t gfar_set_rx_stash_size(struct device *dev, spin_lock_irqsave(&priv->rxlock, flags); if (length > priv->rx_buffer_size) - return count; + goto out; if (length == priv->rx_stash_size) - return count; + goto out; priv->rx_stash_size = length; @@ -125,6 +125,7 @@ static ssize_t gfar_set_rx_stash_size(struct device *dev, gfar_write(&priv->regs->attr, temp); +out: spin_unlock_irqrestore(&priv->rxlock, flags); return count; @@ -154,10 +155,10 @@ static ssize_t gfar_set_rx_stash_index(struct device *dev, spin_lock_irqsave(&priv->rxlock, flags); if (index > priv->rx_stash_size) - return count; + goto out; if (index == priv->rx_stash_index) - return count; + goto out; priv->rx_stash_index = index; @@ -166,6 +167,7 @@ static ssize_t gfar_set_rx_stash_index(struct device *dev, temp |= ATTRELI_EI(index); gfar_write(&priv->regs->attreli, flags); +out: spin_unlock_irqrestore(&priv->rxlock, flags); return count; -- cgit v1.2.3-70-g09d2 From 9b9a8bfc8dfbe09dc57f274e32e8b06151abbad7 Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Fri, 2 May 2008 13:00:51 -0500 Subject: phylib: Fix some sparse warnings Declared some things static, declared some things in the header. Signed-off-by: Andy Fleming Signed-off-by: Jeff Garzik --- drivers/net/phy/phy.c | 2 +- include/linux/phy.h | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 3c18bb59495..45cc2914d34 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -547,7 +547,7 @@ static void phy_force_reduction(struct phy_device *phydev) * Must not be called from interrupt context, or while the * phydev->lock is held. */ -void phy_error(struct phy_device *phydev) +static void phy_error(struct phy_device *phydev) { mutex_lock(&phydev->lock); phydev->state = PHY_HALTED; diff --git a/include/linux/phy.h b/include/linux/phy.h index 02df20f085f..7224c4099a2 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -412,6 +412,8 @@ int mdiobus_register(struct mii_bus *bus); void mdiobus_unregister(struct mii_bus *bus); void phy_sanitize_settings(struct phy_device *phydev); int phy_stop_interrupts(struct phy_device *phydev); +int phy_enable_interrupts(struct phy_device *phydev); +int phy_disable_interrupts(struct phy_device *phydev); static inline int phy_read_status(struct phy_device *phydev) { return phydev->drv->read_status(phydev); @@ -447,5 +449,8 @@ int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask, int (*run)(struct phy_device *)); int phy_scan_fixups(struct phy_device *phydev); +int __init mdio_bus_init(void); +void mdio_bus_exit(void); + extern struct bus_type mdio_bus_type; #endif /* __PHY_H */ -- cgit v1.2.3-70-g09d2 From 6fee40e9b8155a4af904d69765c96c00f975acf5 Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Fri, 2 May 2008 13:01:23 -0500 Subject: ucc_geth: Fix a bunch of sparse warnings ucc_geth didn't have anything marked as __iomem. It was also inconsistent with its use of in/out accessors (using them sometimes, not using them other times). Cleaning this up cuts the warnings down from hundreds to just over a dozen. Signed-off-by: Andy Fleming Signed-off-by: Jeff Garzik --- drivers/net/ucc_geth.c | 276 +++++++++++++++++++++-------------------- drivers/net/ucc_geth.h | 48 ++++--- drivers/net/ucc_geth_ethtool.c | 6 - drivers/net/ucc_geth_mii.c | 4 +- 4 files changed, 174 insertions(+), 160 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c index 281ce3d3953..b3bbb2dc5cf 100644 --- a/drivers/net/ucc_geth.c +++ b/drivers/net/ucc_geth.c @@ -62,7 +62,6 @@ #endif /* UGETH_VERBOSE_DEBUG */ #define UGETH_MSG_DEFAULT (NETIF_MSG_IFUP << 1 ) - 1 -void uec_set_ethtool_ops(struct net_device *netdev); static DEFINE_SPINLOCK(ugeth_lock); @@ -216,7 +215,8 @@ static struct list_head *dequeue(struct list_head *lh) } } -static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth, u8 *bd) +static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth, + u8 __iomem *bd) { struct sk_buff *skb = NULL; @@ -236,21 +236,22 @@ static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth, u8 *bd) skb->dev = ugeth->dev; - out_be32(&((struct qe_bd *)bd)->buf, + out_be32(&((struct qe_bd __iomem *)bd)->buf, dma_map_single(NULL, skb->data, ugeth->ug_info->uf_info.max_rx_buf_length + UCC_GETH_RX_DATA_BUF_ALIGNMENT, DMA_FROM_DEVICE)); - out_be32((u32 *)bd, (R_E | R_I | (in_be32((u32 *)bd) & R_W))); + out_be32((u32 __iomem *)bd, + (R_E | R_I | (in_be32((u32 __iomem*)bd) & R_W))); return skb; } static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ) { - u8 *bd; + u8 __iomem *bd; u32 bd_status; struct sk_buff *skb; int i; @@ -259,7 +260,7 @@ static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ) i = 0; do { - bd_status = in_be32((u32*)bd); + bd_status = in_be32((u32 __iomem *)bd); skb = get_new_skb(ugeth, bd); if (!skb) /* If can not allocate data buffer, @@ -277,7 +278,7 @@ static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ) } static int fill_init_enet_entries(struct ucc_geth_private *ugeth, - volatile u32 *p_start, + u32 *p_start, u8 num_entries, u32 thread_size, u32 thread_alignment, @@ -316,7 +317,7 @@ static int fill_init_enet_entries(struct ucc_geth_private *ugeth, } static int return_init_enet_entries(struct ucc_geth_private *ugeth, - volatile u32 *p_start, + u32 *p_start, u8 num_entries, enum qe_risc_allocation risc, int skip_page_for_first_entry) @@ -326,21 +327,22 @@ static int return_init_enet_entries(struct ucc_geth_private *ugeth, int snum; for (i = 0; i < num_entries; i++) { + u32 val = *p_start; + /* Check that this entry was actually valid -- needed in case failed in allocations */ - if ((*p_start & ENET_INIT_PARAM_RISC_MASK) == risc) { + if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) { snum = - (u32) (*p_start & ENET_INIT_PARAM_SNUM_MASK) >> + (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >> ENET_INIT_PARAM_SNUM_SHIFT; qe_put_snum((u8) snum); if (!((i == 0) && skip_page_for_first_entry)) { /* First entry of Rx does not have page */ init_enet_offset = - (in_be32(p_start) & - ENET_INIT_PARAM_PTR_MASK); + (val & ENET_INIT_PARAM_PTR_MASK); qe_muram_free(init_enet_offset); } - *(p_start++) = 0; /* Just for cosmetics */ + *p_start++ = 0; } } @@ -349,7 +351,7 @@ static int return_init_enet_entries(struct ucc_geth_private *ugeth, #ifdef DEBUG static int dump_init_enet_entries(struct ucc_geth_private *ugeth, - volatile u32 *p_start, + u32 __iomem *p_start, u8 num_entries, u32 thread_size, enum qe_risc_allocation risc, @@ -360,11 +362,13 @@ static int dump_init_enet_entries(struct ucc_geth_private *ugeth, int snum; for (i = 0; i < num_entries; i++) { + u32 val = in_be32(p_start); + /* Check that this entry was actually valid -- needed in case failed in allocations */ - if ((*p_start & ENET_INIT_PARAM_RISC_MASK) == risc) { + if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) { snum = - (u32) (*p_start & ENET_INIT_PARAM_SNUM_MASK) >> + (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >> ENET_INIT_PARAM_SNUM_SHIFT; qe_put_snum((u8) snum); if (!((i == 0) && skip_page_for_first_entry)) { @@ -440,7 +444,7 @@ static int hw_add_addr_in_paddr(struct ucc_geth_private *ugeth, static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num) { - struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt; + struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt; if (!(paddr_num < NUM_OF_PADDRS)) { ugeth_warn("%s: Illagel paddr_num.", __FUNCTION__); @@ -448,7 +452,7 @@ static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num) } p_82xx_addr_filt = - (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram-> + (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram-> addressfiltering; /* Writing address ff.ff.ff.ff.ff.ff disables address @@ -463,11 +467,11 @@ static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num) static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth, u8 *p_enet_addr) { - struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt; + struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt; u32 cecr_subblock; p_82xx_addr_filt = - (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram-> + (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram-> addressfiltering; cecr_subblock = @@ -487,7 +491,7 @@ static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth, static void magic_packet_detection_enable(struct ucc_geth_private *ugeth) { struct ucc_fast_private *uccf; - struct ucc_geth *ug_regs; + struct ucc_geth __iomem *ug_regs; u32 maccfg2, uccm; uccf = ugeth->uccf; @@ -507,7 +511,7 @@ static void magic_packet_detection_enable(struct ucc_geth_private *ugeth) static void magic_packet_detection_disable(struct ucc_geth_private *ugeth) { struct ucc_fast_private *uccf; - struct ucc_geth *ug_regs; + struct ucc_geth __iomem *ug_regs; u32 maccfg2, uccm; uccf = ugeth->uccf; @@ -538,13 +542,13 @@ static void get_statistics(struct ucc_geth_private *ugeth, rx_firmware_statistics, struct ucc_geth_hardware_statistics *hardware_statistics) { - struct ucc_fast *uf_regs; - struct ucc_geth *ug_regs; + struct ucc_fast __iomem *uf_regs; + struct ucc_geth __iomem *ug_regs; struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram; struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram; ug_regs = ugeth->ug_regs; - uf_regs = (struct ucc_fast *) ug_regs; + uf_regs = (struct ucc_fast __iomem *) ug_regs; p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram; p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram; @@ -1132,9 +1136,9 @@ static void dump_regs(struct ucc_geth_private *ugeth) } #endif /* DEBUG */ -static void init_default_reg_vals(volatile u32 *upsmr_register, - volatile u32 *maccfg1_register, - volatile u32 *maccfg2_register) +static void init_default_reg_vals(u32 __iomem *upsmr_register, + u32 __iomem *maccfg1_register, + u32 __iomem *maccfg2_register) { out_be32(upsmr_register, UCC_GETH_UPSMR_INIT); out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT); @@ -1148,7 +1152,7 @@ static int init_half_duplex_params(int alt_beb, u8 alt_beb_truncation, u8 max_retransmissions, u8 collision_window, - volatile u32 *hafdup_register) + u32 __iomem *hafdup_register) { u32 value = 0; @@ -1180,7 +1184,7 @@ static int init_inter_frame_gap_params(u8 non_btb_cs_ipg, u8 non_btb_ipg, u8 min_ifg, u8 btb_ipg, - volatile u32 *ipgifg_register) + u32 __iomem *ipgifg_register) { u32 value = 0; @@ -1215,9 +1219,9 @@ int init_flow_control_params(u32 automatic_flow_control_mode, int tx_flow_control_enable, u16 pause_period, u16 extension_field, - volatile u32 *upsmr_register, - volatile u32 *uempr_register, - volatile u32 *maccfg1_register) + u32 __iomem *upsmr_register, + u32 __iomem *uempr_register, + u32 __iomem *maccfg1_register) { u32 value = 0; @@ -1243,8 +1247,8 @@ int init_flow_control_params(u32 automatic_flow_control_mode, static int init_hw_statistics_gathering_mode(int enable_hardware_statistics, int auto_zero_hardware_statistics, - volatile u32 *upsmr_register, - volatile u16 *uescr_register) + u32 __iomem *upsmr_register, + u16 __iomem *uescr_register) { u32 upsmr_value = 0; u16 uescr_value = 0; @@ -1270,12 +1274,12 @@ static int init_hw_statistics_gathering_mode(int enable_hardware_statistics, static int init_firmware_statistics_gathering_mode(int enable_tx_firmware_statistics, int enable_rx_firmware_statistics, - volatile u32 *tx_rmon_base_ptr, + u32 __iomem *tx_rmon_base_ptr, u32 tx_firmware_statistics_structure_address, - volatile u32 *rx_rmon_base_ptr, + u32 __iomem *rx_rmon_base_ptr, u32 rx_firmware_statistics_structure_address, - volatile u16 *temoder_register, - volatile u32 *remoder_register) + u16 __iomem *temoder_register, + u32 __iomem *remoder_register) { /* Note: this function does not check if */ /* the parameters it receives are NULL */ @@ -1307,8 +1311,8 @@ static int init_mac_station_addr_regs(u8 address_byte_0, u8 address_byte_3, u8 address_byte_4, u8 address_byte_5, - volatile u32 *macstnaddr1_register, - volatile u32 *macstnaddr2_register) + u32 __iomem *macstnaddr1_register, + u32 __iomem *macstnaddr2_register) { u32 value = 0; @@ -1344,7 +1348,7 @@ static int init_mac_station_addr_regs(u8 address_byte_0, } static int init_check_frame_length_mode(int length_check, - volatile u32 *maccfg2_register) + u32 __iomem *maccfg2_register) { u32 value = 0; @@ -1360,7 +1364,7 @@ static int init_check_frame_length_mode(int length_check, } static int init_preamble_length(u8 preamble_length, - volatile u32 *maccfg2_register) + u32 __iomem *maccfg2_register) { u32 value = 0; @@ -1376,7 +1380,7 @@ static int init_preamble_length(u8 preamble_length, static int init_rx_parameters(int reject_broadcast, int receive_short_frames, - int promiscuous, volatile u32 *upsmr_register) + int promiscuous, u32 __iomem *upsmr_register) { u32 value = 0; @@ -1403,7 +1407,7 @@ static int init_rx_parameters(int reject_broadcast, } static int init_max_rx_buff_len(u16 max_rx_buf_len, - volatile u16 *mrblr_register) + u16 __iomem *mrblr_register) { /* max_rx_buf_len value must be a multiple of 128 */ if ((max_rx_buf_len == 0) @@ -1415,8 +1419,8 @@ static int init_max_rx_buff_len(u16 max_rx_buf_len, } static int init_min_frame_len(u16 min_frame_length, - volatile u16 *minflr_register, - volatile u16 *mrblr_register) + u16 __iomem *minflr_register, + u16 __iomem *mrblr_register) { u16 mrblr_value = 0; @@ -1431,8 +1435,8 @@ static int init_min_frame_len(u16 min_frame_length, static int adjust_enet_interface(struct ucc_geth_private *ugeth) { struct ucc_geth_info *ug_info; - struct ucc_geth *ug_regs; - struct ucc_fast *uf_regs; + struct ucc_geth __iomem *ug_regs; + struct ucc_fast __iomem *uf_regs; int ret_val; u32 upsmr, maccfg2, tbiBaseAddress; u16 value; @@ -1517,8 +1521,8 @@ static int adjust_enet_interface(struct ucc_geth_private *ugeth) static void adjust_link(struct net_device *dev) { struct ucc_geth_private *ugeth = netdev_priv(dev); - struct ucc_geth *ug_regs; - struct ucc_fast *uf_regs; + struct ucc_geth __iomem *ug_regs; + struct ucc_fast __iomem *uf_regs; struct phy_device *phydev = ugeth->phydev; unsigned long flags; int new_state = 0; @@ -1678,9 +1682,9 @@ static int ugeth_graceful_stop_rx(struct ucc_geth_private * ugeth) uccf = ugeth->uccf; /* Clear acknowledge bit */ - temp = ugeth->p_rx_glbl_pram->rxgstpack; + temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack); temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX; - ugeth->p_rx_glbl_pram->rxgstpack = temp; + out_8(&ugeth->p_rx_glbl_pram->rxgstpack, temp); /* Keep issuing command and checking acknowledge bit until it is asserted, according to spec */ @@ -1692,7 +1696,7 @@ static int ugeth_graceful_stop_rx(struct ucc_geth_private * ugeth) qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0); - temp = ugeth->p_rx_glbl_pram->rxgstpack; + temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack); } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX)); uccf->stopped_rx = 1; @@ -1991,19 +1995,20 @@ static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private * enum enet_addr_type enet_addr_type) { - struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt; + struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt; struct ucc_fast_private *uccf; enum comm_dir comm_dir; struct list_head *p_lh; u16 i, num; - u32 *addr_h, *addr_l; + u32 __iomem *addr_h; + u32 __iomem *addr_l; u8 *p_counter; uccf = ugeth->uccf; p_82xx_addr_filt = - (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram-> - addressfiltering; + (struct ucc_geth_82xx_address_filtering_pram __iomem *) + ugeth->p_rx_glbl_pram->addressfiltering; if (enet_addr_type == ENET_ADDR_TYPE_GROUP) { addr_h = &(p_82xx_addr_filt->gaddr_h); @@ -2079,7 +2084,7 @@ static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *uge static void ucc_geth_memclean(struct ucc_geth_private *ugeth) { u16 i, j; - u8 *bd; + u8 __iomem *bd; if (!ugeth) return; @@ -2154,8 +2159,8 @@ static void ucc_geth_memclean(struct ucc_geth_private *ugeth) for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) { if (ugeth->tx_skbuff[i][j]) { dma_unmap_single(NULL, - ((struct qe_bd *)bd)->buf, - (in_be32((u32 *)bd) & + in_be32(&((struct qe_bd __iomem *)bd)->buf), + (in_be32((u32 __iomem *)bd) & BD_LENGTH_MASK), DMA_TO_DEVICE); dev_kfree_skb_any(ugeth->tx_skbuff[i][j]); @@ -2182,7 +2187,7 @@ static void ucc_geth_memclean(struct ucc_geth_private *ugeth) for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) { if (ugeth->rx_skbuff[i][j]) { dma_unmap_single(NULL, - ((struct qe_bd *)bd)->buf, + in_be32(&((struct qe_bd __iomem *)bd)->buf), ugeth->ug_info-> uf_info.max_rx_buf_length + UCC_GETH_RX_DATA_BUF_ALIGNMENT, @@ -2218,8 +2223,8 @@ static void ucc_geth_set_multi(struct net_device *dev) { struct ucc_geth_private *ugeth; struct dev_mc_list *dmi; - struct ucc_fast *uf_regs; - struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt; + struct ucc_fast __iomem *uf_regs; + struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt; int i; ugeth = netdev_priv(dev); @@ -2228,14 +2233,14 @@ static void ucc_geth_set_multi(struct net_device *dev) if (dev->flags & IFF_PROMISC) { - uf_regs->upsmr |= UPSMR_PRO; + out_be32(&uf_regs->upsmr, in_be32(&uf_regs->upsmr) | UPSMR_PRO); } else { - uf_regs->upsmr &= ~UPSMR_PRO; + out_be32(&uf_regs->upsmr, in_be32(&uf_regs->upsmr)&~UPSMR_PRO); p_82xx_addr_filt = - (struct ucc_geth_82xx_address_filtering_pram *) ugeth-> + (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth-> p_rx_glbl_pram->addressfiltering; if (dev->flags & IFF_ALLMULTI) { @@ -2270,7 +2275,7 @@ static void ucc_geth_set_multi(struct net_device *dev) static void ucc_geth_stop(struct ucc_geth_private *ugeth) { - struct ucc_geth *ug_regs = ugeth->ug_regs; + struct ucc_geth __iomem *ug_regs = ugeth->ug_regs; struct phy_device *phydev = ugeth->phydev; u32 tempval; @@ -2419,20 +2424,20 @@ static int ucc_struct_init(struct ucc_geth_private *ugeth) return -ENOMEM; } - ugeth->ug_regs = (struct ucc_geth *) ioremap(uf_info->regs, sizeof(struct ucc_geth)); + ugeth->ug_regs = (struct ucc_geth __iomem *) ioremap(uf_info->regs, sizeof(struct ucc_geth)); return 0; } static int ucc_geth_startup(struct ucc_geth_private *ugeth) { - struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt; - struct ucc_geth_init_pram *p_init_enet_pram; + struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt; + struct ucc_geth_init_pram __iomem *p_init_enet_pram; struct ucc_fast_private *uccf; struct ucc_geth_info *ug_info; struct ucc_fast_info *uf_info; - struct ucc_fast *uf_regs; - struct ucc_geth *ug_regs; + struct ucc_fast __iomem *uf_regs; + struct ucc_geth __iomem *ug_regs; int ret_val = -EINVAL; u32 remoder = UCC_GETH_REMODER_INIT; u32 init_enet_pram_offset, cecr_subblock, command, maccfg1; @@ -2440,7 +2445,8 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) u16 temoder = UCC_GETH_TEMODER_INIT; u16 test; u8 function_code = 0; - u8 *bd, *endOfRing; + u8 __iomem *bd; + u8 __iomem *endOfRing; u8 numThreadsRxNumerical, numThreadsTxNumerical; ugeth_vdbg("%s: IN", __FUNCTION__); @@ -2602,11 +2608,11 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4) align = UCC_GETH_TX_BD_RING_ALIGNMENT; ugeth->tx_bd_ring_offset[j] = - kmalloc((u32) (length + align), GFP_KERNEL); + (u32) kmalloc((u32) (length + align), GFP_KERNEL); if (ugeth->tx_bd_ring_offset[j] != 0) ugeth->p_tx_bd_ring[j] = - (void*)((ugeth->tx_bd_ring_offset[j] + + (u8 __iomem *)((ugeth->tx_bd_ring_offset[j] + align) & ~(align - 1)); } else if (uf_info->bd_mem_part == MEM_PART_MURAM) { ugeth->tx_bd_ring_offset[j] = @@ -2614,7 +2620,7 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) UCC_GETH_TX_BD_RING_ALIGNMENT); if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j])) ugeth->p_tx_bd_ring[j] = - (u8 *) qe_muram_addr(ugeth-> + (u8 __iomem *) qe_muram_addr(ugeth-> tx_bd_ring_offset[j]); } if (!ugeth->p_tx_bd_ring[j]) { @@ -2626,8 +2632,8 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) return -ENOMEM; } /* Zero unused end of bd ring, according to spec */ - memset(ugeth->p_tx_bd_ring[j] + - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd), 0, + memset_io((void __iomem *)(ugeth->p_tx_bd_ring[j] + + ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)), 0, length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)); } @@ -2639,10 +2645,10 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4) align = UCC_GETH_RX_BD_RING_ALIGNMENT; ugeth->rx_bd_ring_offset[j] = - kmalloc((u32) (length + align), GFP_KERNEL); + (u32) kmalloc((u32) (length + align), GFP_KERNEL); if (ugeth->rx_bd_ring_offset[j] != 0) ugeth->p_rx_bd_ring[j] = - (void*)((ugeth->rx_bd_ring_offset[j] + + (u8 __iomem *)((ugeth->rx_bd_ring_offset[j] + align) & ~(align - 1)); } else if (uf_info->bd_mem_part == MEM_PART_MURAM) { ugeth->rx_bd_ring_offset[j] = @@ -2650,7 +2656,7 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) UCC_GETH_RX_BD_RING_ALIGNMENT); if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j])) ugeth->p_rx_bd_ring[j] = - (u8 *) qe_muram_addr(ugeth-> + (u8 __iomem *) qe_muram_addr(ugeth-> rx_bd_ring_offset[j]); } if (!ugeth->p_rx_bd_ring[j]) { @@ -2685,14 +2691,14 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j]; for (i = 0; i < ug_info->bdRingLenTx[j]; i++) { /* clear bd buffer */ - out_be32(&((struct qe_bd *)bd)->buf, 0); + out_be32(&((struct qe_bd __iomem *)bd)->buf, 0); /* set bd status and length */ - out_be32((u32 *)bd, 0); + out_be32((u32 __iomem *)bd, 0); bd += sizeof(struct qe_bd); } bd -= sizeof(struct qe_bd); /* set bd status and length */ - out_be32((u32 *)bd, T_W); /* for last BD set Wrap bit */ + out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */ } /* Init Rx bds */ @@ -2717,14 +2723,14 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j]; for (i = 0; i < ug_info->bdRingLenRx[j]; i++) { /* set bd status and length */ - out_be32((u32 *)bd, R_I); + out_be32((u32 __iomem *)bd, R_I); /* clear bd buffer */ - out_be32(&((struct qe_bd *)bd)->buf, 0); + out_be32(&((struct qe_bd __iomem *)bd)->buf, 0); bd += sizeof(struct qe_bd); } bd -= sizeof(struct qe_bd); /* set bd status and length */ - out_be32((u32 *)bd, R_W); /* for last BD set Wrap bit */ + out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */ } /* @@ -2744,10 +2750,10 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) return -ENOMEM; } ugeth->p_tx_glbl_pram = - (struct ucc_geth_tx_global_pram *) qe_muram_addr(ugeth-> + (struct ucc_geth_tx_global_pram __iomem *) qe_muram_addr(ugeth-> tx_glbl_pram_offset); /* Zero out p_tx_glbl_pram */ - memset(ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram)); + memset_io((void __iomem *)ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram)); /* Fill global PRAM */ @@ -2768,7 +2774,7 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) } ugeth->p_thread_data_tx = - (struct ucc_geth_thread_data_tx *) qe_muram_addr(ugeth-> + (struct ucc_geth_thread_data_tx __iomem *) qe_muram_addr(ugeth-> thread_dat_tx_offset); out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset); @@ -2779,7 +2785,8 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) /* iphoffset */ for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++) - ugeth->p_tx_glbl_pram->iphoffset[i] = ug_info->iphoffset[i]; + out_8(&ugeth->p_tx_glbl_pram->iphoffset[i], + ug_info->iphoffset[i]); /* SQPTR */ /* Size varies with number of Tx queues */ @@ -2797,7 +2804,7 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) } ugeth->p_send_q_mem_reg = - (struct ucc_geth_send_queue_mem_region *) qe_muram_addr(ugeth-> + (struct ucc_geth_send_queue_mem_region __iomem *) qe_muram_addr(ugeth-> send_q_mem_reg_offset); out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset); @@ -2841,25 +2848,26 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) } ugeth->p_scheduler = - (struct ucc_geth_scheduler *) qe_muram_addr(ugeth-> + (struct ucc_geth_scheduler __iomem *) qe_muram_addr(ugeth-> scheduler_offset); out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer, ugeth->scheduler_offset); /* Zero out p_scheduler */ - memset(ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler)); + memset_io((void __iomem *)ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler)); /* Set values in scheduler */ out_be32(&ugeth->p_scheduler->mblinterval, ug_info->mblinterval); out_be16(&ugeth->p_scheduler->nortsrbytetime, ug_info->nortsrbytetime); - ugeth->p_scheduler->fracsiz = ug_info->fracsiz; - ugeth->p_scheduler->strictpriorityq = ug_info->strictpriorityq; - ugeth->p_scheduler->txasap = ug_info->txasap; - ugeth->p_scheduler->extrabw = ug_info->extrabw; + out_8(&ugeth->p_scheduler->fracsiz, ug_info->fracsiz); + out_8(&ugeth->p_scheduler->strictpriorityq, + ug_info->strictpriorityq); + out_8(&ugeth->p_scheduler->txasap, ug_info->txasap); + out_8(&ugeth->p_scheduler->extrabw, ug_info->extrabw); for (i = 0; i < NUM_TX_QUEUES; i++) - ugeth->p_scheduler->weightfactor[i] = - ug_info->weightfactor[i]; + out_8(&ugeth->p_scheduler->weightfactor[i], + ug_info->weightfactor[i]); /* Set pointers to cpucount registers in scheduler */ ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0); @@ -2890,10 +2898,10 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) return -ENOMEM; } ugeth->p_tx_fw_statistics_pram = - (struct ucc_geth_tx_firmware_statistics_pram *) + (struct ucc_geth_tx_firmware_statistics_pram __iomem *) qe_muram_addr(ugeth->tx_fw_statistics_pram_offset); /* Zero out p_tx_fw_statistics_pram */ - memset(ugeth->p_tx_fw_statistics_pram, + memset_io((void __iomem *)ugeth->p_tx_fw_statistics_pram, 0, sizeof(struct ucc_geth_tx_firmware_statistics_pram)); } @@ -2930,10 +2938,10 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) return -ENOMEM; } ugeth->p_rx_glbl_pram = - (struct ucc_geth_rx_global_pram *) qe_muram_addr(ugeth-> + (struct ucc_geth_rx_global_pram __iomem *) qe_muram_addr(ugeth-> rx_glbl_pram_offset); /* Zero out p_rx_glbl_pram */ - memset(ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram)); + memset_io((void __iomem *)ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram)); /* Fill global PRAM */ @@ -2953,7 +2961,7 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) } ugeth->p_thread_data_rx = - (struct ucc_geth_thread_data_rx *) qe_muram_addr(ugeth-> + (struct ucc_geth_thread_data_rx __iomem *) qe_muram_addr(ugeth-> thread_dat_rx_offset); out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset); @@ -2976,10 +2984,10 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) return -ENOMEM; } ugeth->p_rx_fw_statistics_pram = - (struct ucc_geth_rx_firmware_statistics_pram *) + (struct ucc_geth_rx_firmware_statistics_pram __iomem *) qe_muram_addr(ugeth->rx_fw_statistics_pram_offset); /* Zero out p_rx_fw_statistics_pram */ - memset(ugeth->p_rx_fw_statistics_pram, 0, + memset_io((void __iomem *)ugeth->p_rx_fw_statistics_pram, 0, sizeof(struct ucc_geth_rx_firmware_statistics_pram)); } @@ -3000,7 +3008,7 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) } ugeth->p_rx_irq_coalescing_tbl = - (struct ucc_geth_rx_interrupt_coalescing_table *) + (struct ucc_geth_rx_interrupt_coalescing_table __iomem *) qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset); out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr, ugeth->rx_irq_coalescing_tbl_offset); @@ -3069,11 +3077,11 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) } ugeth->p_rx_bd_qs_tbl = - (struct ucc_geth_rx_bd_queues_entry *) qe_muram_addr(ugeth-> + (struct ucc_geth_rx_bd_queues_entry __iomem *) qe_muram_addr(ugeth-> rx_bd_qs_tbl_offset); out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset); /* Zero out p_rx_bd_qs_tbl */ - memset(ugeth->p_rx_bd_qs_tbl, + memset_io((void __iomem *)ugeth->p_rx_bd_qs_tbl, 0, ug_info->numQueuesRx * (sizeof(struct ucc_geth_rx_bd_queues_entry) + sizeof(struct ucc_geth_rx_prefetched_bds))); @@ -3133,7 +3141,7 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) &ugeth->p_rx_glbl_pram->remoder); /* function code register */ - ugeth->p_rx_glbl_pram->rstate = function_code; + out_8(&ugeth->p_rx_glbl_pram->rstate, function_code); /* initialize extended filtering */ if (ug_info->rxExtendedFiltering) { @@ -3160,7 +3168,7 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) } ugeth->p_exf_glbl_param = - (struct ucc_geth_exf_global_pram *) qe_muram_addr(ugeth-> + (struct ucc_geth_exf_global_pram __iomem *) qe_muram_addr(ugeth-> exf_glbl_param_offset); out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam, ugeth->exf_glbl_param_offset); @@ -3175,7 +3183,7 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j); p_82xx_addr_filt = - (struct ucc_geth_82xx_address_filtering_pram *) ugeth-> + (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth-> p_rx_glbl_pram->addressfiltering; ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth, @@ -3307,17 +3315,21 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) return -ENOMEM; } p_init_enet_pram = - (struct ucc_geth_init_pram *) qe_muram_addr(init_enet_pram_offset); + (struct ucc_geth_init_pram __iomem *) qe_muram_addr(init_enet_pram_offset); /* Copy shadow InitEnet command parameter structure into PRAM */ - p_init_enet_pram->resinit1 = ugeth->p_init_enet_param_shadow->resinit1; - p_init_enet_pram->resinit2 = ugeth->p_init_enet_param_shadow->resinit2; - p_init_enet_pram->resinit3 = ugeth->p_init_enet_param_shadow->resinit3; - p_init_enet_pram->resinit4 = ugeth->p_init_enet_param_shadow->resinit4; + out_8(&p_init_enet_pram->resinit1, + ugeth->p_init_enet_param_shadow->resinit1); + out_8(&p_init_enet_pram->resinit2, + ugeth->p_init_enet_param_shadow->resinit2); + out_8(&p_init_enet_pram->resinit3, + ugeth->p_init_enet_param_shadow->resinit3); + out_8(&p_init_enet_pram->resinit4, + ugeth->p_init_enet_param_shadow->resinit4); out_be16(&p_init_enet_pram->resinit5, ugeth->p_init_enet_param_shadow->resinit5); - p_init_enet_pram->largestexternallookupkeysize = - ugeth->p_init_enet_param_shadow->largestexternallookupkeysize; + out_8(&p_init_enet_pram->largestexternallookupkeysize, + ugeth->p_init_enet_param_shadow->largestexternallookupkeysize); out_be32(&p_init_enet_pram->rgftgfrxglobal, ugeth->p_init_enet_param_shadow->rgftgfrxglobal); for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++) @@ -3371,7 +3383,7 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev) #ifdef CONFIG_UGETH_TX_ON_DEMAND struct ucc_fast_private *uccf; #endif - u8 *bd; /* BD pointer */ + u8 __iomem *bd; /* BD pointer */ u32 bd_status; u8 txQ = 0; @@ -3383,7 +3395,7 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev) /* Start from the next BD that should be filled */ bd = ugeth->txBd[txQ]; - bd_status = in_be32((u32 *)bd); + bd_status = in_be32((u32 __iomem *)bd); /* Save the skb pointer so we can free it later */ ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb; @@ -3393,7 +3405,7 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev) 1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]); /* set up the buffer descriptor */ - out_be32(&((struct qe_bd *)bd)->buf, + out_be32(&((struct qe_bd __iomem *)bd)->buf, dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE)); /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */ @@ -3401,7 +3413,7 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev) bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len; /* set bd status and length */ - out_be32((u32 *)bd, bd_status); + out_be32((u32 __iomem *)bd, bd_status); dev->trans_start = jiffies; @@ -3441,7 +3453,7 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev) static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit) { struct sk_buff *skb; - u8 *bd; + u8 __iomem *bd; u16 length, howmany = 0; u32 bd_status; u8 *bdBuffer; @@ -3454,11 +3466,11 @@ static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit /* collect received buffers */ bd = ugeth->rxBd[rxQ]; - bd_status = in_be32((u32 *)bd); + bd_status = in_be32((u32 __iomem *)bd); /* while there are received buffers and BD is full (~R_E) */ while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) { - bdBuffer = (u8 *) in_be32(&((struct qe_bd *)bd)->buf); + bdBuffer = (u8 *) in_be32(&((struct qe_bd __iomem *)bd)->buf); length = (u16) ((bd_status & BD_LENGTH_MASK) - 4); skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]]; @@ -3516,7 +3528,7 @@ static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit else bd += sizeof(struct qe_bd); - bd_status = in_be32((u32 *)bd); + bd_status = in_be32((u32 __iomem *)bd); } ugeth->rxBd[rxQ] = bd; @@ -3527,11 +3539,11 @@ static int ucc_geth_tx(struct net_device *dev, u8 txQ) { /* Start from the next BD that should be filled */ struct ucc_geth_private *ugeth = netdev_priv(dev); - u8 *bd; /* BD pointer */ + u8 __iomem *bd; /* BD pointer */ u32 bd_status; bd = ugeth->confBd[txQ]; - bd_status = in_be32((u32 *)bd); + bd_status = in_be32((u32 __iomem *)bd); /* Normal processing. */ while ((bd_status & T_R) == 0) { @@ -3561,7 +3573,7 @@ static int ucc_geth_tx(struct net_device *dev, u8 txQ) bd += sizeof(struct qe_bd); else bd = ugeth->p_tx_bd_ring[txQ]; - bd_status = in_be32((u32 *)bd); + bd_status = in_be32((u32 __iomem *)bd); } ugeth->confBd[txQ] = bd; return 0; diff --git a/drivers/net/ucc_geth.h b/drivers/net/ucc_geth.h index 9f8b7580a3a..abc0e224263 100644 --- a/drivers/net/ucc_geth.h +++ b/drivers/net/ucc_geth.h @@ -700,8 +700,8 @@ struct ucc_geth_82xx_address_filtering_pram { u32 iaddr_l; /* individual address filter, low */ u32 gaddr_h; /* group address filter, high */ u32 gaddr_l; /* group address filter, low */ - struct ucc_geth_82xx_enet_address taddr; - struct ucc_geth_82xx_enet_address paddr[NUM_OF_PADDRS]; + struct ucc_geth_82xx_enet_address __iomem taddr; + struct ucc_geth_82xx_enet_address __iomem paddr[NUM_OF_PADDRS]; u8 res0[0x40 - 0x38]; } __attribute__ ((packed)); @@ -1186,40 +1186,40 @@ struct ucc_geth_private { struct ucc_fast_private *uccf; struct net_device *dev; struct napi_struct napi; - struct ucc_geth *ug_regs; + struct ucc_geth __iomem *ug_regs; struct ucc_geth_init_pram *p_init_enet_param_shadow; - struct ucc_geth_exf_global_pram *p_exf_glbl_param; + struct ucc_geth_exf_global_pram __iomem *p_exf_glbl_param; u32 exf_glbl_param_offset; - struct ucc_geth_rx_global_pram *p_rx_glbl_pram; + struct ucc_geth_rx_global_pram __iomem *p_rx_glbl_pram; u32 rx_glbl_pram_offset; - struct ucc_geth_tx_global_pram *p_tx_glbl_pram; + struct ucc_geth_tx_global_pram __iomem *p_tx_glbl_pram; u32 tx_glbl_pram_offset; - struct ucc_geth_send_queue_mem_region *p_send_q_mem_reg; + struct ucc_geth_send_queue_mem_region __iomem *p_send_q_mem_reg; u32 send_q_mem_reg_offset; - struct ucc_geth_thread_data_tx *p_thread_data_tx; + struct ucc_geth_thread_data_tx __iomem *p_thread_data_tx; u32 thread_dat_tx_offset; - struct ucc_geth_thread_data_rx *p_thread_data_rx; + struct ucc_geth_thread_data_rx __iomem *p_thread_data_rx; u32 thread_dat_rx_offset; - struct ucc_geth_scheduler *p_scheduler; + struct ucc_geth_scheduler __iomem *p_scheduler; u32 scheduler_offset; - struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram; + struct ucc_geth_tx_firmware_statistics_pram __iomem *p_tx_fw_statistics_pram; u32 tx_fw_statistics_pram_offset; - struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram; + struct ucc_geth_rx_firmware_statistics_pram __iomem *p_rx_fw_statistics_pram; u32 rx_fw_statistics_pram_offset; - struct ucc_geth_rx_interrupt_coalescing_table *p_rx_irq_coalescing_tbl; + struct ucc_geth_rx_interrupt_coalescing_table __iomem *p_rx_irq_coalescing_tbl; u32 rx_irq_coalescing_tbl_offset; - struct ucc_geth_rx_bd_queues_entry *p_rx_bd_qs_tbl; + struct ucc_geth_rx_bd_queues_entry __iomem *p_rx_bd_qs_tbl; u32 rx_bd_qs_tbl_offset; - u8 *p_tx_bd_ring[NUM_TX_QUEUES]; + u8 __iomem *p_tx_bd_ring[NUM_TX_QUEUES]; u32 tx_bd_ring_offset[NUM_TX_QUEUES]; - u8 *p_rx_bd_ring[NUM_RX_QUEUES]; + u8 __iomem *p_rx_bd_ring[NUM_RX_QUEUES]; u32 rx_bd_ring_offset[NUM_RX_QUEUES]; - u8 *confBd[NUM_TX_QUEUES]; - u8 *txBd[NUM_TX_QUEUES]; - u8 *rxBd[NUM_RX_QUEUES]; + u8 __iomem *confBd[NUM_TX_QUEUES]; + u8 __iomem *txBd[NUM_TX_QUEUES]; + u8 __iomem *rxBd[NUM_RX_QUEUES]; int badFrame[NUM_RX_QUEUES]; u16 cpucount[NUM_TX_QUEUES]; - volatile u16 *p_cpucount[NUM_TX_QUEUES]; + u16 __iomem *p_cpucount[NUM_TX_QUEUES]; int indAddrRegUsed[NUM_OF_PADDRS]; u8 paddr[NUM_OF_PADDRS][ENET_NUM_OCTETS_PER_ADDRESS]; /* ethernet address */ u8 numGroupAddrInHash; @@ -1251,4 +1251,12 @@ struct ucc_geth_private { int oldlink; }; +void uec_set_ethtool_ops(struct net_device *netdev); +int init_flow_control_params(u32 automatic_flow_control_mode, + int rx_flow_control_enable, int tx_flow_control_enable, + u16 pause_period, u16 extension_field, + u32 __iomem *upsmr_register, u32 __iomem *uempr_register, + u32 __iomem *maccfg1_register); + + #endif /* __UCC_GETH_H__ */ diff --git a/drivers/net/ucc_geth_ethtool.c b/drivers/net/ucc_geth_ethtool.c index 9a9622c13e2..299b7f17695 100644 --- a/drivers/net/ucc_geth_ethtool.c +++ b/drivers/net/ucc_geth_ethtool.c @@ -108,12 +108,6 @@ static char rx_fw_stat_gstrings[][ETH_GSTRING_LEN] = { #define UEC_TX_FW_STATS_LEN ARRAY_SIZE(tx_fw_stat_gstrings) #define UEC_RX_FW_STATS_LEN ARRAY_SIZE(rx_fw_stat_gstrings) -extern int init_flow_control_params(u32 automatic_flow_control_mode, - int rx_flow_control_enable, - int tx_flow_control_enable, u16 pause_period, - u16 extension_field, volatile u32 *upsmr_register, - volatile u32 *uempr_register, volatile u32 *maccfg1_register); - static int uec_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) { diff --git a/drivers/net/ucc_geth_mii.c b/drivers/net/ucc_geth_mii.c index 2af49078100..94047473692 100644 --- a/drivers/net/ucc_geth_mii.c +++ b/drivers/net/ucc_geth_mii.c @@ -104,7 +104,7 @@ int uec_mdio_read(struct mii_bus *bus, int mii_id, int regnum) } /* Reset the MIIM registers, and wait for the bus to free */ -int uec_mdio_reset(struct mii_bus *bus) +static int uec_mdio_reset(struct mii_bus *bus) { struct ucc_mii_mng __iomem *regs = (void __iomem *)bus->priv; unsigned int timeout = PHY_INIT_TIMEOUT; @@ -240,7 +240,7 @@ reg_map_fail: return err; } -int uec_mdio_remove(struct of_device *ofdev) +static int uec_mdio_remove(struct of_device *ofdev) { struct device *device = &ofdev->dev; struct mii_bus *bus = dev_get_drvdata(device); -- cgit v1.2.3-70-g09d2 From afd8e39919c913993ac2f9984af8a9ba21c63d27 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Tue, 29 Apr 2008 19:53:13 +0400 Subject: uli526x: initialize the hardware prior to requesting interrupts The firmware on MPC8610HPCD boards enables ULI ethernet and leaves it in some funky state before booting Linux. For drivers, it's always good idea to (re)initialize the hardware prior to requesting interrupts. This patch fixes the following oops: Oops: Kernel access of bad area, sig: 11 [#1] MPC86xx HPCD NIP: c0172820 LR: c017287c CTR: 00000000 [...] NIP [c0172820] allocate_rx_buffer+0x2c/0xb0 LR [c017287c] allocate_rx_buffer+0x88/0xb0 Call Trace: [df82bdc0] [c017287c] allocate_rx_buffer+0x88/0xb0 (unreliable) [df82bde0] [c0173000] uli526x_interrupt+0xe4/0x49c [df82be20] [c0045418] request_irq+0xf0/0x114 [df82be50] [c01737b0] uli526x_open+0x48/0x160 [df82be70] [c0201184] dev_open+0xb0/0xe8 [df82be80] [c0200104] dev_change_flags+0x90/0x1bc [df82bea0] [c035fab0] ip_auto_config+0x214/0xef4 [df82bf60] [c03421c8] kernel_init+0xc4/0x2ac [df82bff0] [c0010834] kernel_thread+0x44/0x60 Instruction dump: 4e800020 9421ffe0 7c0802a6 bfa10014 7c7e1b78 90010024 80030060 83e30054 2b80002f 419d0078 3fa0c039 48000058 <907f0010> 80630088 2f830000 419e0014 Signed-off-by: Anton Vorontsov Signed-off-by: Jeff Garzik --- drivers/net/tulip/uli526x.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/tulip/uli526x.c b/drivers/net/tulip/uli526x.c index a59c1f224aa..1f077ac9b0e 100644 --- a/drivers/net/tulip/uli526x.c +++ b/drivers/net/tulip/uli526x.c @@ -434,10 +434,6 @@ static int uli526x_open(struct net_device *dev) ULI526X_DBUG(0, "uli526x_open", 0); - ret = request_irq(dev->irq, &uli526x_interrupt, IRQF_SHARED, dev->name, dev); - if (ret) - return ret; - /* system variable init */ db->cr6_data = CR6_DEFAULT | uli526x_cr6_user_set; db->tx_packet_cnt = 0; @@ -456,6 +452,10 @@ static int uli526x_open(struct net_device *dev) /* Initialize ULI526X board */ uli526x_init(dev); + ret = request_irq(dev->irq, &uli526x_interrupt, IRQF_SHARED, dev->name, dev); + if (ret) + return ret; + /* Active System Interface */ netif_wake_queue(dev); -- cgit v1.2.3-70-g09d2 From e284e5c6601cbb16e48854be26aa57a8fa844e35 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Tue, 29 Apr 2008 19:53:18 +0400 Subject: uli526x: fix endianness issues in the setup frame This patch fixes uli526x driver's issues on a PowerPC boards: uli chip is unable to receive the packets. It appears that send_frame_filter prepares the setup frame in the endianness unsafe manner. On a big endian machines we should shift the address nibble by two bytes. Signed-off-by: Anton Vorontsov Signed-off-by: Jeff Garzik --- drivers/net/tulip/uli526x.c | 30 ++++++++++++++++++------------ 1 file changed, 18 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/net/tulip/uli526x.c b/drivers/net/tulip/uli526x.c index 1f077ac9b0e..2511ca7a12a 100644 --- a/drivers/net/tulip/uli526x.c +++ b/drivers/net/tulip/uli526x.c @@ -1368,6 +1368,12 @@ static void update_cr6(u32 cr6_data, unsigned long ioaddr) * This setup frame initialize ULI526X address filter mode */ +#ifdef __BIG_ENDIAN +#define FLT_SHIFT 16 +#else +#define FLT_SHIFT 0 +#endif + static void send_filter_frame(struct net_device *dev, int mc_cnt) { struct uli526x_board_info *db = netdev_priv(dev); @@ -1384,27 +1390,27 @@ static void send_filter_frame(struct net_device *dev, int mc_cnt) /* Node address */ addrptr = (u16 *) dev->dev_addr; - *suptr++ = addrptr[0]; - *suptr++ = addrptr[1]; - *suptr++ = addrptr[2]; + *suptr++ = addrptr[0] << FLT_SHIFT; + *suptr++ = addrptr[1] << FLT_SHIFT; + *suptr++ = addrptr[2] << FLT_SHIFT; /* broadcast address */ - *suptr++ = 0xffff; - *suptr++ = 0xffff; - *suptr++ = 0xffff; + *suptr++ = 0xffff << FLT_SHIFT; + *suptr++ = 0xffff << FLT_SHIFT; + *suptr++ = 0xffff << FLT_SHIFT; /* fit the multicast address */ for (mcptr = dev->mc_list, i = 0; i < mc_cnt; i++, mcptr = mcptr->next) { addrptr = (u16 *) mcptr->dmi_addr; - *suptr++ = addrptr[0]; - *suptr++ = addrptr[1]; - *suptr++ = addrptr[2]; + *suptr++ = addrptr[0] << FLT_SHIFT; + *suptr++ = addrptr[1] << FLT_SHIFT; + *suptr++ = addrptr[2] << FLT_SHIFT; } for (; i<14; i++) { - *suptr++ = 0xffff; - *suptr++ = 0xffff; - *suptr++ = 0xffff; + *suptr++ = 0xffff << FLT_SHIFT; + *suptr++ = 0xffff << FLT_SHIFT; + *suptr++ = 0xffff << FLT_SHIFT; } /* prepare the setup frame */ -- cgit v1.2.3-70-g09d2 From 97ac8caee238d2a81c23661916f7acd3a22c85fe Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Tue, 29 Apr 2008 09:16:05 -0700 Subject: e1000e: Add support for BM PHYs on ICH9 This patch adds support for the BM PHY, a new PHY model being used on ICH9-based implementations. This new PHY exposes issues in the ICH9 silicon when receiving jumbo frames large enough to use more than a certain part of the Rx FIFO, and this unfortunately breaks packet split jumbo receives. For this reason we re-introduce (for affected adapters only) the jumbo single-skb receive routine back so that people who do wish to use jumbo frames on these ich9 platforms can do so. Part of this problem has to do with CPU sleep states and to make sure that all the wake up timings are correctly we force them with the recently merged pm_qos infrastructure written by Mark Gross. (See http://lkml.org/lkml/2007/10/4/400). To make code read a bit easier we introduce a _IS_ICH flag so that we don't need to do mac type checks over the code. Signed-off-by: Bruce Allan Signed-off-by: Auke Kok Signed-off-by: Jeff Garzik --- drivers/net/e1000e/defines.h | 10 ++ drivers/net/e1000e/e1000.h | 7 +- drivers/net/e1000e/ethtool.c | 39 +++-- drivers/net/e1000e/hw.h | 22 +++ drivers/net/e1000e/ich8lan.c | 83 ++++++++++- drivers/net/e1000e/netdev.c | 330 +++++++++++++++++++++++++++++++++++++++++-- drivers/net/e1000e/phy.c | 278 ++++++++++++++++++++++++++++++++++++ 7 files changed, 748 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/net/e1000e/defines.h b/drivers/net/e1000e/defines.h index 2a53875cddb..f823b8ba578 100644 --- a/drivers/net/e1000e/defines.h +++ b/drivers/net/e1000e/defines.h @@ -648,6 +648,8 @@ #define IFE_E_PHY_ID 0x02A80330 #define IFE_PLUS_E_PHY_ID 0x02A80320 #define IFE_C_E_PHY_ID 0x02A80310 +#define BME1000_E_PHY_ID 0x01410CB0 +#define BME1000_E_PHY_ID_R2 0x01410CB1 /* M88E1000 Specific Registers */ #define M88E1000_PHY_SPEC_CTRL 0x10 /* PHY Specific Control Register */ @@ -701,6 +703,14 @@ #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK 0x0E00 #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X 0x0800 +/* BME1000 PHY Specific Control Register */ +#define BME1000_PSCR_ENABLE_DOWNSHIFT 0x0800 /* 1 = enable downshift */ + + +#define PHY_PAGE_SHIFT 5 +#define PHY_REG(page, reg) (((page) << PHY_PAGE_SHIFT) | \ + ((reg) & MAX_PHY_REG_ADDRESS)) + /* * Bits... * 15-5: page diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h index 38bfd0d261f..d3bc6f8101f 100644 --- a/drivers/net/e1000e/e1000.h +++ b/drivers/net/e1000e/e1000.h @@ -127,7 +127,7 @@ struct e1000_buffer { /* arrays of page information for packet split */ struct e1000_ps_page *ps_pages; }; - + struct page *page; }; struct e1000_ring { @@ -304,6 +304,7 @@ struct e1000_info { #define FLAG_HAS_CTRLEXT_ON_LOAD (1 << 5) #define FLAG_HAS_SWSM_ON_LOAD (1 << 6) #define FLAG_HAS_JUMBO_FRAMES (1 << 7) +#define FLAG_IS_ICH (1 << 9) #define FLAG_HAS_SMART_POWER_DOWN (1 << 11) #define FLAG_IS_QUAD_PORT_A (1 << 12) #define FLAG_IS_QUAD_PORT (1 << 13) @@ -386,6 +387,7 @@ extern void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw, bool state); extern void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw); extern void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw); +extern void e1000e_disable_gig_wol_ich8lan(struct e1000_hw *hw); extern s32 e1000e_check_for_copper_link(struct e1000_hw *hw); extern s32 e1000e_check_for_fiber_link(struct e1000_hw *hw); @@ -443,6 +445,9 @@ extern s32 e1000e_get_phy_info_m88(struct e1000_hw *hw); extern s32 e1000e_read_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 *data); extern s32 e1000e_write_phy_reg_m88(struct e1000_hw *hw, u32 offset, u16 data); extern enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id); +extern s32 e1000e_determine_phy_address(struct e1000_hw *hw); +extern s32 e1000e_write_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 data); +extern s32 e1000e_read_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 *data); extern void e1000e_phy_force_speed_duplex_setup(struct e1000_hw *hw, u16 *phy_ctrl); extern s32 e1000e_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data); extern s32 e1000e_read_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 *data); diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index ce045acce63..2bb6da057c4 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -803,8 +803,7 @@ static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data) /* restore previous status */ ew32(STATUS, before); - if ((mac->type != e1000_ich8lan) && - (mac->type != e1000_ich9lan)) { + if (!(adapter->flags & FLAG_IS_ICH)) { REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF); REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF); REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF); @@ -824,15 +823,13 @@ static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data) REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000); - before = (((mac->type == e1000_ich8lan) || - (mac->type == e1000_ich9lan)) ? 0x06C3B33E : 0x06DFB3FE); + before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE); REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB); REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000); REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF); REG_PATTERN_TEST(E1000_RDBAL, 0xFFFFFFF0, 0xFFFFFFFF); - if ((mac->type != e1000_ich8lan) && - (mac->type != e1000_ich9lan)) + if (!(adapter->flags & FLAG_IS_ICH)) REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF); REG_PATTERN_TEST(E1000_TDBAL, 0xFFFFFFF0, 0xFFFFFFFF); REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF); @@ -911,9 +908,7 @@ static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data) /* Test each interrupt */ for (i = 0; i < 10; i++) { - - if (((adapter->hw.mac.type == e1000_ich8lan) || - (adapter->hw.mac.type == e1000_ich9lan)) && i == 8) + if ((adapter->flags & FLAG_IS_ICH) && (i == 8)) continue; /* Interrupt to test */ @@ -1184,6 +1179,7 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) struct e1000_hw *hw = &adapter->hw; u32 ctrl_reg = 0; u32 stat_reg = 0; + u16 phy_reg = 0; hw->mac.autoneg = 0; @@ -1211,6 +1207,28 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) E1000_CTRL_SPD_100 |/* Force Speed to 100 */ E1000_CTRL_FD); /* Force Duplex to FULL */ break; + case e1000_phy_bm: + /* Set Default MAC Interface speed to 1GB */ + e1e_rphy(hw, PHY_REG(2, 21), &phy_reg); + phy_reg &= ~0x0007; + phy_reg |= 0x006; + e1e_wphy(hw, PHY_REG(2, 21), phy_reg); + /* Assert SW reset for above settings to take effect */ + e1000e_commit_phy(hw); + mdelay(1); + /* Force Full Duplex */ + e1e_rphy(hw, PHY_REG(769, 16), &phy_reg); + e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C); + /* Set Link Up (in force link) */ + e1e_rphy(hw, PHY_REG(776, 16), &phy_reg); + e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040); + /* Force Link */ + e1e_rphy(hw, PHY_REG(769, 16), &phy_reg); + e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040); + /* Set Early Link Enable */ + e1e_rphy(hw, PHY_REG(769, 20), &phy_reg); + e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400); + /* fall through */ default: /* force 1000, set loopback */ e1e_wphy(hw, PHY_CONTROL, 0x4140); @@ -1224,8 +1242,7 @@ static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */ E1000_CTRL_FD); /* Force Duplex to FULL */ - if ((adapter->hw.mac.type == e1000_ich8lan) || - (adapter->hw.mac.type == e1000_ich9lan)) + if (adapter->flags & FLAG_IS_ICH) ctrl_reg |= E1000_CTRL_SLU; /* Set Link Up */ } diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h index a930e6d9cf0..74f263acb17 100644 --- a/drivers/net/e1000e/hw.h +++ b/drivers/net/e1000e/hw.h @@ -216,6 +216,21 @@ enum e1e_registers { #define IGP01E1000_PHY_LINK_HEALTH 0x13 /* PHY Link Health */ #define IGP02E1000_PHY_POWER_MGMT 0x19 /* Power Management */ #define IGP01E1000_PHY_PAGE_SELECT 0x1F /* Page Select */ +#define BM_PHY_PAGE_SELECT 22 /* Page Select for BM */ +#define IGP_PAGE_SHIFT 5 +#define PHY_REG_MASK 0x1F + +#define BM_WUC_PAGE 800 +#define BM_WUC_ADDRESS_OPCODE 0x11 +#define BM_WUC_DATA_OPCODE 0x12 +#define BM_WUC_ENABLE_PAGE 769 +#define BM_WUC_ENABLE_REG 17 +#define BM_WUC_ENABLE_BIT (1 << 2) +#define BM_WUC_HOST_WU_BIT (1 << 4) + +#define BM_WUC PHY_REG(BM_WUC_PAGE, 1) +#define BM_WUFC PHY_REG(BM_WUC_PAGE, 2) +#define BM_WUS PHY_REG(BM_WUC_PAGE, 3) #define IGP01E1000_PHY_PCS_INIT_REG 0x00B4 #define IGP01E1000_PHY_POLARITY_MASK 0x0078 @@ -331,10 +346,16 @@ enum e1e_registers { #define E1000_DEV_ID_ICH8_IFE_G 0x10C5 #define E1000_DEV_ID_ICH8_IGP_M 0x104D #define E1000_DEV_ID_ICH9_IGP_AMT 0x10BD +#define E1000_DEV_ID_ICH9_IGP_M_AMT 0x10F5 +#define E1000_DEV_ID_ICH9_IGP_M 0x10BF +#define E1000_DEV_ID_ICH9_IGP_M_V 0x10CB #define E1000_DEV_ID_ICH9_IGP_C 0x294C #define E1000_DEV_ID_ICH9_IFE 0x10C0 #define E1000_DEV_ID_ICH9_IFE_GT 0x10C3 #define E1000_DEV_ID_ICH9_IFE_G 0x10C2 +#define E1000_DEV_ID_ICH10_R_BM_LM 0x10CC +#define E1000_DEV_ID_ICH10_R_BM_LF 0x10CD +#define E1000_DEV_ID_ICH10_R_BM_V 0x10CE #define E1000_FUNC_1 1 @@ -378,6 +399,7 @@ enum e1000_phy_type { e1000_phy_gg82563, e1000_phy_igp_3, e1000_phy_ife, + e1000_phy_bm, }; enum e1000_bus_width { diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c index 768485dbb2c..9e38452a738 100644 --- a/drivers/net/e1000e/ich8lan.c +++ b/drivers/net/e1000e/ich8lan.c @@ -38,6 +38,12 @@ * 82566DM Gigabit Network Connection * 82566MC Gigabit Network Connection * 82566MM Gigabit Network Connection + * 82567LM Gigabit Network Connection + * 82567LF Gigabit Network Connection + * 82567LM-2 Gigabit Network Connection + * 82567LF-2 Gigabit Network Connection + * 82567V-2 Gigabit Network Connection + * 82562GT-3 10/100 Network Connection */ #include @@ -198,6 +204,19 @@ static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw) phy->addr = 1; phy->reset_delay_us = 100; + /* + * We may need to do this twice - once for IGP and if that fails, + * we'll set BM func pointers and try again + */ + ret_val = e1000e_determine_phy_address(hw); + if (ret_val) { + hw->phy.ops.write_phy_reg = e1000e_write_phy_reg_bm; + hw->phy.ops.read_phy_reg = e1000e_read_phy_reg_bm; + ret_val = e1000e_determine_phy_address(hw); + if (ret_val) + return ret_val; + } + phy->id = 0; while ((e1000_phy_unknown == e1000e_get_phy_type_from_id(phy->id)) && (i++ < 100)) { @@ -219,6 +238,13 @@ static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw) phy->type = e1000_phy_ife; phy->autoneg_mask = E1000_ALL_NOT_GIG; break; + case BME1000_E_PHY_ID: + phy->type = e1000_phy_bm; + phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; + hw->phy.ops.read_phy_reg = e1000e_read_phy_reg_bm; + hw->phy.ops.write_phy_reg = e1000e_write_phy_reg_bm; + hw->phy.ops.commit_phy = e1000e_phy_sw_reset; + break; default: return -E1000_ERR_PHY; break; @@ -664,6 +690,7 @@ static s32 e1000_get_phy_info_ich8lan(struct e1000_hw *hw) return e1000_get_phy_info_ife_ich8lan(hw); break; case e1000_phy_igp_3: + case e1000_phy_bm: return e1000e_get_phy_info_igp(hw); break; default: @@ -728,7 +755,7 @@ static s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active) s32 ret_val = 0; u16 data; - if (phy->type != e1000_phy_igp_3) + if (phy->type == e1000_phy_ife) return ret_val; phy_ctrl = er32(PHY_CTRL); @@ -1918,8 +1945,35 @@ static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw) ret_val = e1000e_copper_link_setup_igp(hw); if (ret_val) return ret_val; + } else if (hw->phy.type == e1000_phy_bm) { + ret_val = e1000e_copper_link_setup_m88(hw); + if (ret_val) + return ret_val; } + if (hw->phy.type == e1000_phy_ife) { + ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, ®_data); + if (ret_val) + return ret_val; + + reg_data &= ~IFE_PMC_AUTO_MDIX; + + switch (hw->phy.mdix) { + case 1: + reg_data &= ~IFE_PMC_FORCE_MDIX; + break; + case 2: + reg_data |= IFE_PMC_FORCE_MDIX; + break; + case 0: + default: + reg_data |= IFE_PMC_AUTO_MDIX; + break; + } + ret_val = e1e_wphy(hw, IFE_PHY_MDIX_CONTROL, reg_data); + if (ret_val) + return ret_val; + } return e1000e_setup_copper_link(hw); } @@ -2126,6 +2180,31 @@ void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw) reg_data); } +/** + * e1000e_disable_gig_wol_ich8lan - disable gig during WoL + * @hw: pointer to the HW structure + * + * During S0 to Sx transition, it is possible the link remains at gig + * instead of negotiating to a lower speed. Before going to Sx, set + * 'LPLU Enabled' and 'Gig Disable' to force link speed negotiation + * to a lower speed. + * + * Should only be called for ICH9 devices. + **/ +void e1000e_disable_gig_wol_ich8lan(struct e1000_hw *hw) +{ + u32 phy_ctrl; + + if (hw->mac.type == e1000_ich9lan) { + phy_ctrl = er32(PHY_CTRL); + phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU | + E1000_PHY_CTRL_GBE_DISABLE; + ew32(PHY_CTRL, phy_ctrl); + } + + return; +} + /** * e1000_cleanup_led_ich8lan - Restore the default LED operation * @hw: pointer to the HW structure @@ -2247,6 +2326,7 @@ static struct e1000_nvm_operations ich8_nvm_ops = { struct e1000_info e1000_ich8_info = { .mac = e1000_ich8lan, .flags = FLAG_HAS_WOL + | FLAG_IS_ICH | FLAG_RX_CSUM_ENABLED | FLAG_HAS_CTRLEXT_ON_LOAD | FLAG_HAS_AMT @@ -2262,6 +2342,7 @@ struct e1000_info e1000_ich8_info = { struct e1000_info e1000_ich9_info = { .mac = e1000_ich9lan, .flags = FLAG_HAS_JUMBO_FRAMES + | FLAG_IS_ICH | FLAG_HAS_WOL | FLAG_RX_CSUM_ENABLED | FLAG_HAS_CTRLEXT_ON_LOAD diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 8991ab8911e..8cbb40f3a50 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -43,10 +43,11 @@ #include #include #include +#include #include "e1000.h" -#define DRV_VERSION "0.2.1" +#define DRV_VERSION "0.3.3.3-k2" char e1000e_driver_name[] = "e1000e"; const char e1000e_driver_version[] = DRV_VERSION; @@ -340,6 +341,89 @@ no_buffers: } } +/** + * e1000_alloc_jumbo_rx_buffers - Replace used jumbo receive buffers + * @adapter: address of board private structure + * @rx_ring: pointer to receive ring structure + * @cleaned_count: number of buffers to allocate this pass + **/ + +static void e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter, + int cleaned_count) +{ + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_rx_desc *rx_desc; + struct e1000_ring *rx_ring = adapter->rx_ring; + struct e1000_buffer *buffer_info; + struct sk_buff *skb; + unsigned int i; + unsigned int bufsz = 256 - + 16 /* for skb_reserve */ - + NET_IP_ALIGN; + + i = rx_ring->next_to_use; + buffer_info = &rx_ring->buffer_info[i]; + + while (cleaned_count--) { + skb = buffer_info->skb; + if (skb) { + skb_trim(skb, 0); + goto check_page; + } + + skb = netdev_alloc_skb(netdev, bufsz); + if (unlikely(!skb)) { + /* Better luck next round */ + adapter->alloc_rx_buff_failed++; + break; + } + + /* Make buffer alignment 2 beyond a 16 byte boundary + * this will result in a 16 byte aligned IP header after + * the 14 byte MAC header is removed + */ + skb_reserve(skb, NET_IP_ALIGN); + + buffer_info->skb = skb; +check_page: + /* allocate a new page if necessary */ + if (!buffer_info->page) { + buffer_info->page = alloc_page(GFP_ATOMIC); + if (unlikely(!buffer_info->page)) { + adapter->alloc_rx_buff_failed++; + break; + } + } + + if (!buffer_info->dma) + buffer_info->dma = pci_map_page(pdev, + buffer_info->page, 0, + PAGE_SIZE, + PCI_DMA_FROMDEVICE); + + rx_desc = E1000_RX_DESC(*rx_ring, i); + rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma); + + if (unlikely(++i == rx_ring->count)) + i = 0; + buffer_info = &rx_ring->buffer_info[i]; + } + + if (likely(rx_ring->next_to_use != i)) { + rx_ring->next_to_use = i; + if (unlikely(i-- == 0)) + i = (rx_ring->count - 1); + + /* Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). */ + wmb(); + writel(i, adapter->hw.hw_addr + rx_ring->tail); + } +} + /** * e1000_clean_rx_irq - Send received data up the network stack; legacy * @adapter: board private structure @@ -782,6 +866,186 @@ next_desc: return cleaned; } +/** + * e1000_consume_page - helper function + **/ +static void e1000_consume_page(struct e1000_buffer *bi, struct sk_buff *skb, + u16 length) +{ + bi->page = NULL; + skb->len += length; + skb->data_len += length; + skb->truesize += length; +} + +/** + * e1000_clean_jumbo_rx_irq - Send received data up the network stack; legacy + * @adapter: board private structure + * + * the return value indicates whether actual cleaning was done, there + * is no guarantee that everything was cleaned + **/ + +static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter, + int *work_done, int work_to_do) +{ + struct net_device *netdev = adapter->netdev; + struct pci_dev *pdev = adapter->pdev; + struct e1000_ring *rx_ring = adapter->rx_ring; + struct e1000_rx_desc *rx_desc, *next_rxd; + struct e1000_buffer *buffer_info, *next_buffer; + u32 length; + unsigned int i; + int cleaned_count = 0; + bool cleaned = false; + unsigned int total_rx_bytes=0, total_rx_packets=0; + + i = rx_ring->next_to_clean; + rx_desc = E1000_RX_DESC(*rx_ring, i); + buffer_info = &rx_ring->buffer_info[i]; + + while (rx_desc->status & E1000_RXD_STAT_DD) { + struct sk_buff *skb; + u8 status; + + if (*work_done >= work_to_do) + break; + (*work_done)++; + + status = rx_desc->status; + skb = buffer_info->skb; + buffer_info->skb = NULL; + + ++i; + if (i == rx_ring->count) + i = 0; + next_rxd = E1000_RX_DESC(*rx_ring, i); + prefetch(next_rxd); + + next_buffer = &rx_ring->buffer_info[i]; + + cleaned = true; + cleaned_count++; + pci_unmap_page(pdev, buffer_info->dma, PAGE_SIZE, + PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; + + length = le16_to_cpu(rx_desc->length); + + /* errors is only valid for DD + EOP descriptors */ + if (unlikely((status & E1000_RXD_STAT_EOP) && + (rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK))) { + /* recycle both page and skb */ + buffer_info->skb = skb; + /* an error means any chain goes out the window + * too */ + if (rx_ring->rx_skb_top) + dev_kfree_skb(rx_ring->rx_skb_top); + rx_ring->rx_skb_top = NULL; + goto next_desc; + } + +#define rxtop rx_ring->rx_skb_top + if (!(status & E1000_RXD_STAT_EOP)) { + /* this descriptor is only the beginning (or middle) */ + if (!rxtop) { + /* this is the beginning of a chain */ + rxtop = skb; + skb_fill_page_desc(rxtop, 0, buffer_info->page, + 0, length); + } else { + /* this is the middle of a chain */ + skb_fill_page_desc(rxtop, + skb_shinfo(rxtop)->nr_frags, + buffer_info->page, 0, length); + /* re-use the skb, only consumed the page */ + buffer_info->skb = skb; + } + e1000_consume_page(buffer_info, rxtop, length); + goto next_desc; + } else { + if (rxtop) { + /* end of the chain */ + skb_fill_page_desc(rxtop, + skb_shinfo(rxtop)->nr_frags, + buffer_info->page, 0, length); + /* re-use the current skb, we only consumed the + * page */ + buffer_info->skb = skb; + skb = rxtop; + rxtop = NULL; + e1000_consume_page(buffer_info, skb, length); + } else { + /* no chain, got EOP, this buf is the packet + * copybreak to save the put_page/alloc_page */ + if (length <= copybreak && + skb_tailroom(skb) >= length) { + u8 *vaddr; + vaddr = kmap_atomic(buffer_info->page, + KM_SKB_DATA_SOFTIRQ); + memcpy(skb_tail_pointer(skb), vaddr, + length); + kunmap_atomic(vaddr, + KM_SKB_DATA_SOFTIRQ); + /* re-use the page, so don't erase + * buffer_info->page */ + skb_put(skb, length); + } else { + skb_fill_page_desc(skb, 0, + buffer_info->page, 0, + length); + e1000_consume_page(buffer_info, skb, + length); + } + } + } + + /* Receive Checksum Offload XXX recompute due to CRC strip? */ + e1000_rx_checksum(adapter, + (u32)(status) | + ((u32)(rx_desc->errors) << 24), + le16_to_cpu(rx_desc->csum), skb); + + /* probably a little skewed due to removing CRC */ + total_rx_bytes += skb->len; + total_rx_packets++; + + /* eth type trans needs skb->data to point to something */ + if (!pskb_may_pull(skb, ETH_HLEN)) { + ndev_err(netdev, "pskb_may_pull failed.\n"); + dev_kfree_skb(skb); + goto next_desc; + } + + e1000_receive_skb(adapter, netdev, skb, status, + rx_desc->special); + +next_desc: + rx_desc->status = 0; + + /* return some buffers to hardware, one at a time is too slow */ + if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) { + adapter->alloc_rx_buf(adapter, cleaned_count); + cleaned_count = 0; + } + + /* use prefetched values */ + rx_desc = next_rxd; + buffer_info = next_buffer; + } + rx_ring->next_to_clean = i; + + cleaned_count = e1000_desc_unused(rx_ring); + if (cleaned_count) + adapter->alloc_rx_buf(adapter, cleaned_count); + + adapter->total_rx_bytes += total_rx_bytes; + adapter->total_rx_packets += total_rx_packets; + adapter->net_stats.rx_bytes += total_rx_bytes; + adapter->net_stats.rx_packets += total_rx_packets; + return cleaned; +} + /** * e1000_clean_rx_ring - Free Rx Buffers per Queue * @adapter: board private structure @@ -802,6 +1066,10 @@ static void e1000_clean_rx_ring(struct e1000_adapter *adapter) pci_unmap_single(pdev, buffer_info->dma, adapter->rx_buffer_len, PCI_DMA_FROMDEVICE); + else if (adapter->clean_rx == e1000_clean_jumbo_rx_irq) + pci_unmap_page(pdev, buffer_info->dma, + PAGE_SIZE, + PCI_DMA_FROMDEVICE); else if (adapter->clean_rx == e1000_clean_rx_irq_ps) pci_unmap_single(pdev, buffer_info->dma, adapter->rx_ps_bsize0, @@ -809,6 +1077,11 @@ static void e1000_clean_rx_ring(struct e1000_adapter *adapter) buffer_info->dma = 0; } + if (buffer_info->page) { + put_page(buffer_info->page); + buffer_info->page = NULL; + } + if (buffer_info->skb) { dev_kfree_skb(buffer_info->skb); buffer_info->skb = NULL; @@ -1755,10 +2028,12 @@ static void e1000_setup_rctl(struct e1000_adapter *adapter) * a lot of memory, since we allocate 3 pages at all times * per packet. */ - adapter->rx_ps_pages = 0; pages = PAGE_USE_COUNT(adapter->netdev->mtu); - if ((pages <= 3) && (PAGE_SIZE <= 16384) && (rctl & E1000_RCTL_LPE)) + if (!(adapter->flags & FLAG_IS_ICH) && (pages <= 3) && + (PAGE_SIZE <= 16384) && (rctl & E1000_RCTL_LPE)) adapter->rx_ps_pages = pages; + else + adapter->rx_ps_pages = 0; if (adapter->rx_ps_pages) { /* Configure extra packet-split registers */ @@ -1819,9 +2094,12 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) sizeof(union e1000_rx_desc_packet_split); adapter->clean_rx = e1000_clean_rx_irq_ps; adapter->alloc_rx_buf = e1000_alloc_rx_buffers_ps; + } else if (adapter->netdev->mtu > ETH_FRAME_LEN + ETH_FCS_LEN) { + rdlen = rx_ring->count * sizeof(struct e1000_rx_desc); + adapter->clean_rx = e1000_clean_jumbo_rx_irq; + adapter->alloc_rx_buf = e1000_alloc_jumbo_rx_buffers; } else { - rdlen = rx_ring->count * - sizeof(struct e1000_rx_desc); + rdlen = rx_ring->count * sizeof(struct e1000_rx_desc); adapter->clean_rx = e1000_clean_rx_irq; adapter->alloc_rx_buf = e1000_alloc_rx_buffers; } @@ -1885,8 +2163,21 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) * units), e.g. using jumbo frames when setting to E1000_ERT_2048 */ if ((adapter->flags & FLAG_HAS_ERT) && - (adapter->netdev->mtu > ETH_DATA_LEN)) - ew32(ERT, E1000_ERT_2048); + (adapter->netdev->mtu > ETH_DATA_LEN)) { + u32 rxdctl = er32(RXDCTL(0)); + ew32(RXDCTL(0), rxdctl | 0x3); + ew32(ERT, E1000_ERT_2048 | (1 << 13)); + /* + * With jumbo frames and early-receive enabled, excessive + * C4->C2 latencies result in dropped transactions. + */ + pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, + e1000e_driver_name, 55); + } else { + pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, + e1000e_driver_name, + PM_QOS_DEFAULT_VALUE); + } /* Enable Receives */ ew32(RCTL, rctl); @@ -2155,6 +2446,14 @@ void e1000e_reset(struct e1000_adapter *adapter) /* Allow time for pending master requests to run */ mac->ops.reset_hw(hw); + + /* + * For parts with AMT enabled, let the firmware know + * that the network interface is in control + */ + if ((adapter->flags & FLAG_HAS_AMT) && e1000e_check_mng_mode(hw)) + e1000_get_hw_control(adapter); + ew32(WUC, 0); if (mac->ops.init_hw(hw)) @@ -3469,6 +3768,8 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) * means we reserve 2 more, this pushes us to allocate from the next * larger slab size. * i.e. RXBUFFER_2048 --> size-4096 slab + * However with the new *_jumbo_rx* routines, jumbo receives will use + * fragmented skbs */ if (max_frame <= 256) @@ -3626,6 +3927,9 @@ static int e1000_suspend(struct pci_dev *pdev, pm_message_t state) ew32(CTRL_EXT, ctrl_ext); } + if (adapter->flags & FLAG_IS_ICH) + e1000e_disable_gig_wol_ich8lan(&adapter->hw); + /* Allow time for pending master requests to run */ e1000e_disable_pcie_master(&adapter->hw); @@ -4292,6 +4596,13 @@ static struct pci_device_id e1000_pci_tbl[] = { { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE_GT), board_ich9lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_AMT), board_ich9lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_C), board_ich9lan }, + { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_M), board_ich9lan }, + { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_M_AMT), board_ich9lan }, + { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_M_V), board_ich9lan }, + + { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_R_BM_LM), board_ich9lan }, + { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_R_BM_LF), board_ich9lan }, + { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_R_BM_V), board_ich9lan }, { } /* terminate list */ }; @@ -4326,7 +4637,9 @@ static int __init e1000_init_module(void) printk(KERN_INFO "%s: Copyright (c) 1999-2008 Intel Corporation.\n", e1000e_driver_name); ret = pci_register_driver(&e1000_driver); - + pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, e1000e_driver_name, + PM_QOS_DEFAULT_VALUE); + return ret; } module_init(e1000_init_module); @@ -4340,6 +4653,7 @@ module_init(e1000_init_module); static void __exit e1000_exit_module(void) { pci_unregister_driver(&e1000_driver); + pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, e1000e_driver_name); } module_exit(e1000_exit_module); diff --git a/drivers/net/e1000e/phy.c b/drivers/net/e1000e/phy.c index e102332a6be..b133dcf0e95 100644 --- a/drivers/net/e1000e/phy.c +++ b/drivers/net/e1000e/phy.c @@ -34,6 +34,9 @@ static s32 e1000_get_phy_cfg_done(struct e1000_hw *hw); static s32 e1000_phy_force_speed_duplex(struct e1000_hw *hw); static s32 e1000_set_d0_lplu_state(struct e1000_hw *hw, bool active); static s32 e1000_wait_autoneg(struct e1000_hw *hw); +static u32 e1000_get_phy_addr_for_bm_page(u32 page, u32 reg); +static s32 e1000_access_phy_wakeup_reg_bm(struct e1000_hw *hw, u32 offset, + u16 *data, bool read); /* Cable length tables */ static const u16 e1000_m88_cable_length_table[] = @@ -465,6 +468,10 @@ s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw) if (phy->disable_polarity_correction == 1) phy_data |= M88E1000_PSCR_POLARITY_REVERSAL; + /* Enable downshift on BM (disabled by default) */ + if (phy->type == e1000_phy_bm) + phy_data |= BME1000_PSCR_ENABLE_DOWNSHIFT; + ret_val = e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, phy_data); if (ret_val) return ret_val; @@ -1776,6 +1783,10 @@ enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id) case IFE_C_E_PHY_ID: phy_type = e1000_phy_ife; break; + case BME1000_E_PHY_ID: + case BME1000_E_PHY_ID_R2: + phy_type = e1000_phy_bm; + break; default: phy_type = e1000_phy_unknown; break; @@ -1783,6 +1794,273 @@ enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id) return phy_type; } +/** + * e1000e_determine_phy_address - Determines PHY address. + * @hw: pointer to the HW structure + * + * This uses a trial and error method to loop through possible PHY + * addresses. It tests each by reading the PHY ID registers and + * checking for a match. + **/ +s32 e1000e_determine_phy_address(struct e1000_hw *hw) +{ + s32 ret_val = -E1000_ERR_PHY_TYPE; + u32 phy_addr= 0; + u32 i = 0; + enum e1000_phy_type phy_type = e1000_phy_unknown; + + do { + for (phy_addr = 0; phy_addr < 4; phy_addr++) { + hw->phy.addr = phy_addr; + e1000e_get_phy_id(hw); + phy_type = e1000e_get_phy_type_from_id(hw->phy.id); + + /* + * If phy_type is valid, break - we found our + * PHY address + */ + if (phy_type != e1000_phy_unknown) { + ret_val = 0; + break; + } + } + i++; + } while ((ret_val != 0) && (i < 100)); + + return ret_val; +} + +/** + * e1000_get_phy_addr_for_bm_page - Retrieve PHY page address + * @page: page to access + * + * Returns the phy address for the page requested. + **/ +static u32 e1000_get_phy_addr_for_bm_page(u32 page, u32 reg) +{ + u32 phy_addr = 2; + + if ((page >= 768) || (page == 0 && reg == 25) || (reg == 31)) + phy_addr = 1; + + return phy_addr; +} + +/** + * e1000e_write_phy_reg_bm - Write BM PHY register + * @hw: pointer to the HW structure + * @offset: register offset to write to + * @data: data to write at register offset + * + * Acquires semaphore, if necessary, then writes the data to PHY register + * at the offset. Release any acquired semaphores before exiting. + **/ +s32 e1000e_write_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 data) +{ + s32 ret_val; + u32 page_select = 0; + u32 page = offset >> IGP_PAGE_SHIFT; + u32 page_shift = 0; + + /* Page 800 works differently than the rest so it has its own func */ + if (page == BM_WUC_PAGE) { + ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, &data, + false); + goto out; + } + + ret_val = hw->phy.ops.acquire_phy(hw); + if (ret_val) + goto out; + + hw->phy.addr = e1000_get_phy_addr_for_bm_page(page, offset); + + if (offset > MAX_PHY_MULTI_PAGE_REG) { + /* + * Page select is register 31 for phy address 1 and 22 for + * phy address 2 and 3. Page select is shifted only for + * phy address 1. + */ + if (hw->phy.addr == 1) { + page_shift = IGP_PAGE_SHIFT; + page_select = IGP01E1000_PHY_PAGE_SELECT; + } else { + page_shift = 0; + page_select = BM_PHY_PAGE_SELECT; + } + + /* Page is shifted left, PHY expects (page x 32) */ + ret_val = e1000e_write_phy_reg_mdic(hw, page_select, + (page << page_shift)); + if (ret_val) { + hw->phy.ops.release_phy(hw); + goto out; + } + } + + ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, + data); + + hw->phy.ops.release_phy(hw); + +out: + return ret_val; +} + +/** + * e1000e_read_phy_reg_bm - Read BM PHY register + * @hw: pointer to the HW structure + * @offset: register offset to be read + * @data: pointer to the read data + * + * Acquires semaphore, if necessary, then reads the PHY register at offset + * and storing the retrieved information in data. Release any acquired + * semaphores before exiting. + **/ +s32 e1000e_read_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 *data) +{ + s32 ret_val; + u32 page_select = 0; + u32 page = offset >> IGP_PAGE_SHIFT; + u32 page_shift = 0; + + /* Page 800 works differently than the rest so it has its own func */ + if (page == BM_WUC_PAGE) { + ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, data, + true); + goto out; + } + + ret_val = hw->phy.ops.acquire_phy(hw); + if (ret_val) + goto out; + + hw->phy.addr = e1000_get_phy_addr_for_bm_page(page, offset); + + if (offset > MAX_PHY_MULTI_PAGE_REG) { + /* + * Page select is register 31 for phy address 1 and 22 for + * phy address 2 and 3. Page select is shifted only for + * phy address 1. + */ + if (hw->phy.addr == 1) { + page_shift = IGP_PAGE_SHIFT; + page_select = IGP01E1000_PHY_PAGE_SELECT; + } else { + page_shift = 0; + page_select = BM_PHY_PAGE_SELECT; + } + + /* Page is shifted left, PHY expects (page x 32) */ + ret_val = e1000e_write_phy_reg_mdic(hw, page_select, + (page << page_shift)); + if (ret_val) { + hw->phy.ops.release_phy(hw); + goto out; + } + } + + ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, + data); + hw->phy.ops.release_phy(hw); + +out: + return ret_val; +} + +/** + * e1000_access_phy_wakeup_reg_bm - Read BM PHY wakeup register + * @hw: pointer to the HW structure + * @offset: register offset to be read or written + * @data: pointer to the data to read or write + * @read: determines if operation is read or write + * + * Acquires semaphore, if necessary, then reads the PHY register at offset + * and storing the retrieved information in data. Release any acquired + * semaphores before exiting. Note that procedure to read the wakeup + * registers are different. It works as such: + * 1) Set page 769, register 17, bit 2 = 1 + * 2) Set page to 800 for host (801 if we were manageability) + * 3) Write the address using the address opcode (0x11) + * 4) Read or write the data using the data opcode (0x12) + * 5) Restore 769_17.2 to its original value + **/ +static s32 e1000_access_phy_wakeup_reg_bm(struct e1000_hw *hw, u32 offset, + u16 *data, bool read) +{ + s32 ret_val; + u16 reg = ((u16)offset) & PHY_REG_MASK; + u16 phy_reg = 0; + u8 phy_acquired = 1; + + + ret_val = hw->phy.ops.acquire_phy(hw); + if (ret_val) { + phy_acquired = 0; + goto out; + } + + /* All operations in this function are phy address 1 */ + hw->phy.addr = 1; + + /* Set page 769 */ + e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, + (BM_WUC_ENABLE_PAGE << IGP_PAGE_SHIFT)); + + ret_val = e1000e_read_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, &phy_reg); + if (ret_val) + goto out; + + /* First clear bit 4 to avoid a power state change */ + phy_reg &= ~(BM_WUC_HOST_WU_BIT); + ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, phy_reg); + if (ret_val) + goto out; + + /* Write bit 2 = 1, and clear bit 4 to 769_17 */ + ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, + phy_reg | BM_WUC_ENABLE_BIT); + if (ret_val) + goto out; + + /* Select page 800 */ + ret_val = e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, + (BM_WUC_PAGE << IGP_PAGE_SHIFT)); + + /* Write the page 800 offset value using opcode 0x11 */ + ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_ADDRESS_OPCODE, reg); + if (ret_val) + goto out; + + if (read) { + /* Read the page 800 value using opcode 0x12 */ + ret_val = e1000e_read_phy_reg_mdic(hw, BM_WUC_DATA_OPCODE, + data); + } else { + /* Read the page 800 value using opcode 0x12 */ + ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_DATA_OPCODE, + *data); + } + + if (ret_val) + goto out; + + /* + * Restore 769_17.2 to its original value + * Set page 769 + */ + e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, + (BM_WUC_ENABLE_PAGE << IGP_PAGE_SHIFT)); + + /* Clear 769_17.2 */ + ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, phy_reg); + +out: + if (phy_acquired == 1) + hw->phy.ops.release_phy(hw); + return ret_val; +} + /** * e1000e_commit_phy - Soft PHY reset * @hw: pointer to the HW structure -- cgit v1.2.3-70-g09d2 From 7ab267d4ecdad3032d6bb31619a2744fc2074b59 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Tue, 6 May 2008 12:16:24 -0400 Subject: fix warning in drivers/net/appletalk/cops.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit drivers/net/appletalk/cops.c: In function ‘cops_reset’: drivers/net/appletalk/cops.c:507: warning: comparison of distinct pointer types lacks a cast by replacing hand-woven msleep() with call to msleep() Signed-off-by: Jeff Garzik --- drivers/net/appletalk/cops.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/net/appletalk/cops.c b/drivers/net/appletalk/cops.c index 82e9a5bd0dd..a0b4c851607 100644 --- a/drivers/net/appletalk/cops.c +++ b/drivers/net/appletalk/cops.c @@ -499,19 +499,13 @@ static void cops_reset(struct net_device *dev, int sleep) { outb(0, ioaddr+DAYNA_RESET); /* Assert the reset port */ inb(ioaddr+DAYNA_RESET); /* Clear the reset */ - if(sleep) - { - long snap=jiffies; - - /* Let card finish initializing, about 1/3 second */ - while (time_before(jiffies, snap + HZ/3)) - schedule(); - } - else - mdelay(333); + if (sleep) + msleep(333); + else + mdelay(333); } + netif_wake_queue(dev); - return; } static void cops_load (struct net_device *dev) -- cgit v1.2.3-70-g09d2 From aa807f79dad3d6a8e9b175d66418b0c5be1d5cd8 Mon Sep 17 00:00:00 2001 From: Gunnar Larisch Date: Mon, 5 May 2008 14:01:28 +0200 Subject: 3c980-TX needs EXTRA_PREAMBLE The ethernet card 3c980-TX needs a mdio_sync() to initialize the ethernet properly. This is forced by adding an EXTRA_PREAMBLE to its drv_flags. Without this, the driver did not reconnect after a link loss. Signed-off-by: Gunnar Larisch Acked-by: Steffen Klassert Signed-off-by: Jeff Garzik --- drivers/net/3c59x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c index 6f8e7d4cf74..e93c378b5b6 100644 --- a/drivers/net/3c59x.c +++ b/drivers/net/3c59x.c @@ -319,7 +319,7 @@ static struct vortex_chip_info { {"3c920B-EMB-WNM (ATI Radeon 9100 IGP)", PCI_USES_MASTER, IS_TORNADO|HAS_MII|HAS_HWCKSM, 128, }, {"3c980 Cyclone", - PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM, 128, }, + PCI_USES_MASTER, IS_CYCLONE|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, {"3c980C Python-T", PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, }, -- cgit v1.2.3-70-g09d2 From 1daad055bfc928dfc8590664c455960059421151 Mon Sep 17 00:00:00 2001 From: Paulius Zaleckas Date: Mon, 5 May 2008 14:01:29 +0200 Subject: 3c59x: use netstats in net_device structure Use net_device_stats from net_device structure instead of local. Signed-off-by: Paulius Zaleckas Acked-by: Steffen Klassert Signed-off-by: Jeff Garzik --- drivers/net/3c59x.c | 71 ++++++++++++++++++++++++++--------------------------- 1 file changed, 35 insertions(+), 36 deletions(-) (limited to 'drivers') diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c index e93c378b5b6..2edda8cc7f9 100644 --- a/drivers/net/3c59x.c +++ b/drivers/net/3c59x.c @@ -600,7 +600,6 @@ struct vortex_private { struct sk_buff* tx_skbuff[TX_RING_SIZE]; unsigned int cur_rx, cur_tx; /* The next free ring entry */ unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */ - struct net_device_stats stats; /* Generic stats */ struct vortex_extra_stats xstats; /* NIC-specific extra stats */ struct sk_buff *tx_skb; /* Packet being eaten by bus master ctrl. */ dma_addr_t tx_skb_dma; /* Allocated DMA address for bus master ctrl DMA. */ @@ -1875,7 +1874,7 @@ static void vortex_tx_timeout(struct net_device *dev) issue_and_wait(dev, TxReset); - vp->stats.tx_errors++; + dev->stats.tx_errors++; if (vp->full_bus_master_tx) { printk(KERN_DEBUG "%s: Resetting the Tx ring pointer.\n", dev->name); if (vp->cur_tx - vp->dirty_tx > 0 && ioread32(ioaddr + DownListPtr) == 0) @@ -1887,7 +1886,7 @@ static void vortex_tx_timeout(struct net_device *dev) iowrite8(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold); iowrite16(DownUnstall, ioaddr + EL3_CMD); } else { - vp->stats.tx_dropped++; + dev->stats.tx_dropped++; netif_wake_queue(dev); } @@ -1928,8 +1927,8 @@ vortex_error(struct net_device *dev, int status) } dump_tx_ring(dev); } - if (tx_status & 0x14) vp->stats.tx_fifo_errors++; - if (tx_status & 0x38) vp->stats.tx_aborted_errors++; + if (tx_status & 0x14) dev->stats.tx_fifo_errors++; + if (tx_status & 0x38) dev->stats.tx_aborted_errors++; if (tx_status & 0x08) vp->xstats.tx_max_collisions++; iowrite8(0, ioaddr + TxStatus); if (tx_status & 0x30) { /* txJabber or txUnderrun */ @@ -2051,8 +2050,8 @@ vortex_start_xmit(struct sk_buff *skb, struct net_device *dev) if (vortex_debug > 2) printk(KERN_DEBUG "%s: Tx error, status %2.2x.\n", dev->name, tx_status); - if (tx_status & 0x04) vp->stats.tx_fifo_errors++; - if (tx_status & 0x38) vp->stats.tx_aborted_errors++; + if (tx_status & 0x04) dev->stats.tx_fifo_errors++; + if (tx_status & 0x38) dev->stats.tx_aborted_errors++; if (tx_status & 0x30) { issue_and_wait(dev, TxReset); } @@ -2350,7 +2349,7 @@ boomerang_interrupt(int irq, void *dev_id) } else { printk(KERN_DEBUG "boomerang_interrupt: no skb!\n"); } - /* vp->stats.tx_packets++; Counted below. */ + /* dev->stats.tx_packets++; Counted below. */ dirty_tx++; } vp->dirty_tx = dirty_tx; @@ -2409,12 +2408,12 @@ static int vortex_rx(struct net_device *dev) unsigned char rx_error = ioread8(ioaddr + RxErrors); if (vortex_debug > 2) printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error); - vp->stats.rx_errors++; - if (rx_error & 0x01) vp->stats.rx_over_errors++; - if (rx_error & 0x02) vp->stats.rx_length_errors++; - if (rx_error & 0x04) vp->stats.rx_frame_errors++; - if (rx_error & 0x08) vp->stats.rx_crc_errors++; - if (rx_error & 0x10) vp->stats.rx_length_errors++; + dev->stats.rx_errors++; + if (rx_error & 0x01) dev->stats.rx_over_errors++; + if (rx_error & 0x02) dev->stats.rx_length_errors++; + if (rx_error & 0x04) dev->stats.rx_frame_errors++; + if (rx_error & 0x08) dev->stats.rx_crc_errors++; + if (rx_error & 0x10) dev->stats.rx_length_errors++; } else { /* The packet length: up to 4.5K!. */ int pkt_len = rx_status & 0x1fff; @@ -2446,7 +2445,7 @@ static int vortex_rx(struct net_device *dev) skb->protocol = eth_type_trans(skb, dev); netif_rx(skb); dev->last_rx = jiffies; - vp->stats.rx_packets++; + dev->stats.rx_packets++; /* Wait a limited time to go to next packet. */ for (i = 200; i >= 0; i--) if ( ! (ioread16(ioaddr + EL3_STATUS) & CmdInProgress)) @@ -2455,7 +2454,7 @@ static int vortex_rx(struct net_device *dev) } else if (vortex_debug > 0) printk(KERN_NOTICE "%s: No memory to allocate a sk_buff of " "size %d.\n", dev->name, pkt_len); - vp->stats.rx_dropped++; + dev->stats.rx_dropped++; } issue_and_wait(dev, RxDiscard); } @@ -2482,12 +2481,12 @@ boomerang_rx(struct net_device *dev) unsigned char rx_error = rx_status >> 16; if (vortex_debug > 2) printk(KERN_DEBUG " Rx error: status %2.2x.\n", rx_error); - vp->stats.rx_errors++; - if (rx_error & 0x01) vp->stats.rx_over_errors++; - if (rx_error & 0x02) vp->stats.rx_length_errors++; - if (rx_error & 0x04) vp->stats.rx_frame_errors++; - if (rx_error & 0x08) vp->stats.rx_crc_errors++; - if (rx_error & 0x10) vp->stats.rx_length_errors++; + dev->stats.rx_errors++; + if (rx_error & 0x01) dev->stats.rx_over_errors++; + if (rx_error & 0x02) dev->stats.rx_length_errors++; + if (rx_error & 0x04) dev->stats.rx_frame_errors++; + if (rx_error & 0x08) dev->stats.rx_crc_errors++; + if (rx_error & 0x10) dev->stats.rx_length_errors++; } else { /* The packet length: up to 4.5K!. */ int pkt_len = rx_status & 0x1fff; @@ -2529,7 +2528,7 @@ boomerang_rx(struct net_device *dev) } netif_rx(skb); dev->last_rx = jiffies; - vp->stats.rx_packets++; + dev->stats.rx_packets++; } entry = (++vp->cur_rx) % RX_RING_SIZE; } @@ -2591,7 +2590,7 @@ vortex_down(struct net_device *dev, int final_down) del_timer_sync(&vp->rx_oom_timer); del_timer_sync(&vp->timer); - /* Turn off statistics ASAP. We update vp->stats below. */ + /* Turn off statistics ASAP. We update dev->stats below. */ iowrite16(StatsDisable, ioaddr + EL3_CMD); /* Disable the receiver and transmitter. */ @@ -2728,7 +2727,7 @@ static struct net_device_stats *vortex_get_stats(struct net_device *dev) update_stats(ioaddr, dev); spin_unlock_irqrestore (&vp->lock, flags); } - return &vp->stats; + return &dev->stats; } /* Update statistics. @@ -2748,18 +2747,18 @@ static void update_stats(void __iomem *ioaddr, struct net_device *dev) /* Unlike the 3c5x9 we need not turn off stats updates while reading. */ /* Switch to the stats window, and read everything. */ EL3WINDOW(6); - vp->stats.tx_carrier_errors += ioread8(ioaddr + 0); - vp->stats.tx_heartbeat_errors += ioread8(ioaddr + 1); - vp->stats.tx_window_errors += ioread8(ioaddr + 4); - vp->stats.rx_fifo_errors += ioread8(ioaddr + 5); - vp->stats.tx_packets += ioread8(ioaddr + 6); - vp->stats.tx_packets += (ioread8(ioaddr + 9)&0x30) << 4; + dev->stats.tx_carrier_errors += ioread8(ioaddr + 0); + dev->stats.tx_heartbeat_errors += ioread8(ioaddr + 1); + dev->stats.tx_window_errors += ioread8(ioaddr + 4); + dev->stats.rx_fifo_errors += ioread8(ioaddr + 5); + dev->stats.tx_packets += ioread8(ioaddr + 6); + dev->stats.tx_packets += (ioread8(ioaddr + 9)&0x30) << 4; /* Rx packets */ ioread8(ioaddr + 7); /* Must read to clear */ /* Don't bother with register 9, an extension of registers 6&7. If we do use the 6&7 values the atomic update assumption above is invalid. */ - vp->stats.rx_bytes += ioread16(ioaddr + 10); - vp->stats.tx_bytes += ioread16(ioaddr + 12); + dev->stats.rx_bytes += ioread16(ioaddr + 10); + dev->stats.tx_bytes += ioread16(ioaddr + 12); /* Extra stats for get_ethtool_stats() */ vp->xstats.tx_multiple_collisions += ioread8(ioaddr + 2); vp->xstats.tx_single_collisions += ioread8(ioaddr + 3); @@ -2767,14 +2766,14 @@ static void update_stats(void __iomem *ioaddr, struct net_device *dev) EL3WINDOW(4); vp->xstats.rx_bad_ssd += ioread8(ioaddr + 12); - vp->stats.collisions = vp->xstats.tx_multiple_collisions + dev->stats.collisions = vp->xstats.tx_multiple_collisions + vp->xstats.tx_single_collisions + vp->xstats.tx_max_collisions; { u8 up = ioread8(ioaddr + 13); - vp->stats.rx_bytes += (up & 0x0f) << 16; - vp->stats.tx_bytes += (up & 0xf0) << 12; + dev->stats.rx_bytes += (up & 0x0f) << 16; + dev->stats.tx_bytes += (up & 0xf0) << 12; } EL3WINDOW(old_window >> 13); -- cgit v1.2.3-70-g09d2 From 46fa06170d59b6b9951d09354829d85090f0d911 Mon Sep 17 00:00:00 2001 From: Bruce Robson Date: Fri, 2 May 2008 13:40:53 -0700 Subject: [netdrvr] eexpress: IPv6 fails - multicast problems Taken from http://bugzilla.kernel.org/show_bug.cgi?id=10577 I was unable to access a computer containing an Intel EtherExpress 16 network card using IPv6. I traced this to failure of neighbour discovery. When I used an "ip -6 neigh add" command, on the computer attempting access, to insert a binding between the IPv6 address of the computer with the Intel EtherExpress 16 network card and the card's ethernet address, I was able to access that computer using IPv6. Neighbour discovery requires working multicast. The driver sources file eexpress.c contains an approximately 30 line function eexp_setup_filter used when loading multicast addresses. I found 3 problems in this function 1) It wrote the number of multicast addresses to the card instead of the number of bytes in the multicast addresses. 2) When loading multiple multicast addresses it loaded the first one provided multiple times instead of loading each one once. 3) The setting of pointer 'data' from 'dmi->dmi_addr' occured before the test for the error situation of 'dmi' being NULL. Correcting these problems allows the computer with the Intel EtherExpress 16 network card to found by IPv6 neighbour discovery. p.s. There is some information on the Intel EtherExpress 16 at http://www.intel.com/support/etherexpress/vintage/sb/cs-013500.htm Datasheet for the Intel 82586 ethernet controller used by the card http://www.datasheetcatalog.com/datasheets_pdf/8/2/5/8/82586.shtml Signed-off-by: Bruce Robson Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/eexpress.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/eexpress.c b/drivers/net/eexpress.c index 2eb82aba4a8..795c594a4b7 100644 --- a/drivers/net/eexpress.c +++ b/drivers/net/eexpress.c @@ -202,7 +202,7 @@ static unsigned short start_code[] = { 0x0000,Cmd_MCast, 0x0076, /* link to next command */ #define CONF_NR_MULTICAST 0x44 - 0x0000, /* number of multicast addresses */ + 0x0000, /* number of bytes in multicast address(es) */ #define CONF_MULTICAST 0x46 0x0000, 0x0000, 0x0000, /* some addresses */ 0x0000, 0x0000, 0x0000, @@ -1569,7 +1569,7 @@ static void eexp_hw_init586(struct net_device *dev) static void eexp_setup_filter(struct net_device *dev) { - struct dev_mc_list *dmi = dev->mc_list; + struct dev_mc_list *dmi; unsigned short ioaddr = dev->base_addr; int count = dev->mc_count; int i; @@ -1580,9 +1580,9 @@ static void eexp_setup_filter(struct net_device *dev) } outw(CONF_NR_MULTICAST & ~31, ioaddr+SM_PTR); - outw(count, ioaddr+SHADOW(CONF_NR_MULTICAST)); - for (i = 0; i < count; i++) { - unsigned short *data = (unsigned short *)dmi->dmi_addr; + outw(6*count, ioaddr+SHADOW(CONF_NR_MULTICAST)); + for (i = 0, dmi = dev->mc_list; i < count; i++, dmi = dmi->next) { + unsigned short *data; if (!dmi) { printk(KERN_INFO "%s: too few multicast addresses\n", dev->name); break; @@ -1591,6 +1591,7 @@ static void eexp_setup_filter(struct net_device *dev) printk(KERN_INFO "%s: invalid multicast address length given.\n", dev->name); continue; } + data = (unsigned short *)dmi->dmi_addr; outw((CONF_MULTICAST+(6*i)) & ~31, ioaddr+SM_PTR); outw(data[0], ioaddr+SHADOW(CONF_MULTICAST+(6*i))); outw((CONF_MULTICAST+(6*i)+2) & ~31, ioaddr+SM_PTR); -- cgit v1.2.3-70-g09d2 From a86e2cbe263c193a70b2e5c5a0c7e53ed39fc0ad Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Fri, 2 May 2008 13:42:41 -0500 Subject: fs_enet: Fix a memory leak in fs_enet_mdio_probe There are more memory leaks in the !PPC_CPM_NEW_BINDING case, but that code will disappear soon along with arch/ppc. Reported by Daniel Marjamki at http://bugzilla.kernel.org/show_bug.cgi?id=10591 Signed-off-by: Scott Wood Signed-off-by: Jeff Garzik --- drivers/net/fs_enet/mii-fec.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/fs_enet/mii-fec.c b/drivers/net/fs_enet/mii-fec.c index ba75efc9f5b..f0014cfbb27 100644 --- a/drivers/net/fs_enet/mii-fec.c +++ b/drivers/net/fs_enet/mii-fec.c @@ -194,7 +194,7 @@ static int __devinit fs_enet_mdio_probe(struct of_device *ofdev, ret = of_address_to_resource(ofdev->node, 0, &res); if (ret) - return ret; + goto out_res; snprintf(new_bus->id, MII_BUS_ID_SIZE, "%x", res.start); @@ -236,6 +236,7 @@ out_free_irqs: kfree(new_bus->irq); out_unmap_regs: iounmap(fec->fecp); +out_res: out_fec: kfree(fec); out_mii: -- cgit v1.2.3-70-g09d2 From 01935d7d2c544a5dfc8313f79ed164d45115aa33 Mon Sep 17 00:00:00 2001 From: Don Fry Date: Tue, 29 Apr 2008 13:49:58 -0700 Subject: pcnet32: delete non NAPI code from driver. Delete the non-napi code from the driver and Kconfig. Tested x86_64. Apply at next open opportunity. Signed-off-by: Don Fry Signed-off-by: Jeff Garzik --- drivers/net/Kconfig | 14 ------------ drivers/net/pcnet32.c | 61 ++++----------------------------------------------- 2 files changed, 4 insertions(+), 71 deletions(-) (limited to 'drivers') diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index af46341827f..d27f54a2df7 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -1273,20 +1273,6 @@ config PCNET32 To compile this driver as a module, choose M here. The module will be called pcnet32. -config PCNET32_NAPI - bool "Use RX polling (NAPI)" - depends on PCNET32 - help - NAPI is a new driver API designed to reduce CPU and interrupt load - when the driver is receiving lots of packets from the card. It is - still somewhat experimental and thus not yet enabled by default. - - If your estimated Rx load is 10kpps or more, or if the card will be - deployed on potentially unfriendly networks (e.g. in a firewall), - then say Y here. - - If in doubt, say N. - config AMD8111_ETH tristate "AMD 8111 (new PCI lance) support" depends on NET_PCI && PCI diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c index 4eb322e5273..a1c454dbc16 100644 --- a/drivers/net/pcnet32.c +++ b/drivers/net/pcnet32.c @@ -22,12 +22,8 @@ *************************************************************************/ #define DRV_NAME "pcnet32" -#ifdef CONFIG_PCNET32_NAPI -#define DRV_VERSION "1.34-NAPI" -#else -#define DRV_VERSION "1.34" -#endif -#define DRV_RELDATE "14.Aug.2007" +#define DRV_VERSION "1.35" +#define DRV_RELDATE "21.Apr.2008" #define PFX DRV_NAME ": " static const char *const version = @@ -445,30 +441,24 @@ static struct pcnet32_access pcnet32_dwio = { static void pcnet32_netif_stop(struct net_device *dev) { -#ifdef CONFIG_PCNET32_NAPI struct pcnet32_private *lp = netdev_priv(dev); -#endif + dev->trans_start = jiffies; -#ifdef CONFIG_PCNET32_NAPI napi_disable(&lp->napi); -#endif netif_tx_disable(dev); } static void pcnet32_netif_start(struct net_device *dev) { -#ifdef CONFIG_PCNET32_NAPI struct pcnet32_private *lp = netdev_priv(dev); ulong ioaddr = dev->base_addr; u16 val; -#endif + netif_wake_queue(dev); -#ifdef CONFIG_PCNET32_NAPI val = lp->a.read_csr(ioaddr, CSR3); val &= 0x00ff; lp->a.write_csr(ioaddr, CSR3, val); napi_enable(&lp->napi); -#endif } /* @@ -911,11 +901,7 @@ static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) rc = 1; /* default to fail */ if (netif_running(dev)) -#ifdef CONFIG_PCNET32_NAPI pcnet32_netif_stop(dev); -#else - pcnet32_close(dev); -#endif spin_lock_irqsave(&lp->lock, flags); lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ @@ -1046,7 +1032,6 @@ static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) x = a->read_bcr(ioaddr, 32); /* reset internal loopback */ a->write_bcr(ioaddr, 32, (x & ~0x0002)); -#ifdef CONFIG_PCNET32_NAPI if (netif_running(dev)) { pcnet32_netif_start(dev); pcnet32_restart(dev, CSR0_NORMAL); @@ -1055,16 +1040,6 @@ static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ } spin_unlock_irqrestore(&lp->lock, flags); -#else - if (netif_running(dev)) { - spin_unlock_irqrestore(&lp->lock, flags); - pcnet32_open(dev); - } else { - pcnet32_purge_rx_ring(dev); - lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ - spin_unlock_irqrestore(&lp->lock, flags); - } -#endif return (rc); } /* end pcnet32_loopback_test */ @@ -1270,11 +1245,7 @@ static void pcnet32_rx_entry(struct net_device *dev, } dev->stats.rx_bytes += skb->len; skb->protocol = eth_type_trans(skb, dev); -#ifdef CONFIG_PCNET32_NAPI netif_receive_skb(skb); -#else - netif_rx(skb); -#endif dev->last_rx = jiffies; dev->stats.rx_packets++; return; @@ -1403,7 +1374,6 @@ static int pcnet32_tx(struct net_device *dev) return must_restart; } -#ifdef CONFIG_PCNET32_NAPI static int pcnet32_poll(struct napi_struct *napi, int budget) { struct pcnet32_private *lp = container_of(napi, struct pcnet32_private, napi); @@ -1442,7 +1412,6 @@ static int pcnet32_poll(struct napi_struct *napi, int budget) } return work_done; } -#endif #define PCNET32_REGS_PER_PHY 32 #define PCNET32_MAX_PHYS 32 @@ -1864,9 +1833,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) /* napi.weight is used in both the napi and non-napi cases */ lp->napi.weight = lp->rx_ring_size / 2; -#ifdef CONFIG_PCNET32_NAPI netif_napi_add(dev, &lp->napi, pcnet32_poll, lp->rx_ring_size / 2); -#endif if (fdx && !(lp->options & PCNET32_PORT_ASEL) && ((cards_found >= MAX_UNITS) || full_duplex[cards_found])) @@ -2297,9 +2264,7 @@ static int pcnet32_open(struct net_device *dev) goto err_free_ring; } -#ifdef CONFIG_PCNET32_NAPI napi_enable(&lp->napi); -#endif /* Re-initialize the PCNET32, and start it when done. */ lp->a.write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); @@ -2623,7 +2588,6 @@ pcnet32_interrupt(int irq, void *dev_id) dev->name, csr0); /* unlike for the lance, there is no restart needed */ } -#ifdef CONFIG_PCNET32_NAPI if (netif_rx_schedule_prep(dev, &lp->napi)) { u16 val; /* set interrupt masks */ @@ -2634,24 +2598,9 @@ pcnet32_interrupt(int irq, void *dev_id) __netif_rx_schedule(dev, &lp->napi); break; } -#else - pcnet32_rx(dev, lp->napi.weight); - if (pcnet32_tx(dev)) { - /* reset the chip to clear the error condition, then restart */ - lp->a.reset(ioaddr); - lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ - pcnet32_restart(dev, CSR0_START); - netif_wake_queue(dev); - } -#endif csr0 = lp->a.read_csr(ioaddr, CSR0); } -#ifndef CONFIG_PCNET32_NAPI - /* Set interrupt enable. */ - lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN); -#endif - if (netif_msg_intr(lp)) printk(KERN_DEBUG "%s: exiting interrupt, csr0=%#4.4x.\n", dev->name, lp->a.read_csr(ioaddr, CSR0)); @@ -2670,9 +2619,7 @@ static int pcnet32_close(struct net_device *dev) del_timer_sync(&lp->watchdog_timer); netif_stop_queue(dev); -#ifdef CONFIG_PCNET32_NAPI napi_disable(&lp->napi); -#endif spin_lock_irqsave(&lp->lock, flags); -- cgit v1.2.3-70-g09d2 From 1b3aa7afb60d34867eea5e73ee943b2a026fc47c Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 29 Apr 2008 14:29:30 +0100 Subject: cxgb3: Use CAP_SYS_RAWIO for firmware Otherwise theoretically at least CAP_NET_ADMIN Reload new firmware Wait.. Firmware patches kernel So it should be CAY_SYS_RAWIO - not that I suspect this is in fact a credible attack vector! Signed-off-by: Alan Cox Signed-off-by: Jeff Garzik --- drivers/net/cxgb3/cxgb3_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c index 05e5f59e87f..ce949d5fae3 100644 --- a/drivers/net/cxgb3/cxgb3_main.c +++ b/drivers/net/cxgb3/cxgb3_main.c @@ -1894,11 +1894,11 @@ static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr) u8 *fw_data; struct ch_mem_range t; - if (!capable(CAP_NET_ADMIN)) + if (!capable(CAP_SYS_RAWIO)) return -EPERM; if (copy_from_user(&t, useraddr, sizeof(t))) return -EFAULT; - + /* Check t.len sanity ? */ fw_data = kmalloc(t.len, GFP_KERNEL); if (!fw_data) return -ENOMEM; -- cgit v1.2.3-70-g09d2 From e410553fd35afd6d290b65e02dc501722406377d Mon Sep 17 00:00:00 2001 From: Joakim Tjernlund Date: Tue, 29 Apr 2008 13:03:57 +0200 Subject: ucc_geth: Don't use RX clock as TX clock. Commit 9fb1e350e16164d56990dde036ae9c0a2fd3f634, ucc_geth: use rx-clock-name and tx-clock-name device tree properties Introduced a typo that made the driver use the RX clock as TX clock, causing massive TX errors. Signed-off-by: Joakim Tjernlund Signed-off-by: Jeff Garzik --- drivers/net/ucc_geth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c index b3bbb2dc5cf..ca0bdac07a7 100644 --- a/drivers/net/ucc_geth.c +++ b/drivers/net/ucc_geth.c @@ -3922,7 +3922,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma return -EINVAL; } } else { - prop = of_get_property(np, "rx-clock", NULL); + prop = of_get_property(np, "tx-clock", NULL); if (!prop) { printk(KERN_ERR "ucc_geth: mising tx-clock-name property\n"); -- cgit v1.2.3-70-g09d2 From f227ec3ca2b7be449fb2156e82b40cceed87a34a Mon Sep 17 00:00:00 2001 From: "Kok, Auke" Date: Tue, 29 Apr 2008 11:18:55 -0700 Subject: e1000e: don't return half-read eeprom on error On a read error, e1000e might have returned uninitialized block of eeprom data back to userspace. The convention is that 0xff is "empty", so mark the entire eeprom as empty in case of an error. Signed-off-by: Auke Kok Signed-off-by: Jeff Garzik --- drivers/net/e1000e/ethtool.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c index 2bb6da057c4..a14561f40db 100644 --- a/drivers/net/e1000e/ethtool.c +++ b/drivers/net/e1000e/ethtool.c @@ -494,8 +494,12 @@ static int e1000_get_eeprom(struct net_device *netdev, for (i = 0; i < last_word - first_word + 1; i++) { ret_val = e1000_read_nvm(hw, first_word + i, 1, &eeprom_buff[i]); - if (ret_val) + if (ret_val) { + /* a read error occurred, throw away the + * result */ + memset(eeprom_buff, 0xff, sizeof(eeprom_buff)); break; + } } } -- cgit v1.2.3-70-g09d2 From db176c6ed8974fae94328ad5ac9e70b094ff22fd Mon Sep 17 00:00:00 2001 From: OGAWA Hirofumi Date: Wed, 7 May 2008 04:02:53 +0900 Subject: Fix bogus warning in sysdev_driver_register() if ((drv->entry.next != drv->entry.prev) || (drv->entry.next != NULL)) { warns list_empty(&drv->entry). Signed-off-by: OGAWA Hirofumi Cc: Greg KH Cc: Len Brown [ Version 2 totally redone based on suggestions from Linus & Greg ] Signed-off-by: Linus Torvalds --- drivers/base/sys.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/base/sys.c b/drivers/base/sys.c index 4fbb56bcb1e..358bb0be3c0 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -175,8 +175,7 @@ int sysdev_driver_register(struct sysdev_class *cls, struct sysdev_driver *drv) } /* Check whether this driver has already been added to a class. */ - if ((drv->entry.next != drv->entry.prev) || - (drv->entry.next != NULL)) { + if (drv->entry.next && !list_empty(&drv->entry)) { printk(KERN_WARNING "sysdev: class %s: driver (%p) has already" " been registered to a class, something is wrong, but " "will forge on!\n", cls->name, drv); -- cgit v1.2.3-70-g09d2 From 0e9913362a967377eb886bbdf305ec58aa07a878 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Tue, 6 May 2008 15:03:38 -0700 Subject: RDMA/cxgb3: Don't add PBL memory to gen_pool in chunks Current iw_cxgb3 code adds PBL memory to the driver's gen_pool in 2 MB chunks. This limits the largest single allocation that can be done to the same size, which means that with 4 KB pages, each of which takes 8 bytes of PBL memory, the largest memory region that can be allocated is 1 GB (256K PBL entries * 4 KB/entry). Remove this limit by adding all the PBL memory in a single gen_pool chunk, if possible. Add code that falls back to smaller chunks if gen_pool_add() fails, which can happen if there is not sufficient contiguous lowmem for the internal gen_pool bitmap. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb3/cxio_resource.c | 36 ++++++++++++++++++++++------- 1 file changed, 28 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/cxgb3/cxio_resource.c b/drivers/infiniband/hw/cxgb3/cxio_resource.c index 45ed4f25ef7..bd233c08765 100644 --- a/drivers/infiniband/hw/cxgb3/cxio_resource.c +++ b/drivers/infiniband/hw/cxgb3/cxio_resource.c @@ -250,7 +250,6 @@ void cxio_hal_destroy_resource(struct cxio_hal_resource *rscp) */ #define MIN_PBL_SHIFT 8 /* 256B == min PBL size (32 entries) */ -#define PBL_CHUNK 2*1024*1024 u32 cxio_hal_pblpool_alloc(struct cxio_rdev *rdev_p, int size) { @@ -267,14 +266,35 @@ void cxio_hal_pblpool_free(struct cxio_rdev *rdev_p, u32 addr, int size) int cxio_hal_pblpool_create(struct cxio_rdev *rdev_p) { - unsigned long i; + unsigned pbl_start, pbl_chunk; + rdev_p->pbl_pool = gen_pool_create(MIN_PBL_SHIFT, -1); - if (rdev_p->pbl_pool) - for (i = rdev_p->rnic_info.pbl_base; - i <= rdev_p->rnic_info.pbl_top - PBL_CHUNK + 1; - i += PBL_CHUNK) - gen_pool_add(rdev_p->pbl_pool, i, PBL_CHUNK, -1); - return rdev_p->pbl_pool ? 0 : -ENOMEM; + if (!rdev_p->pbl_pool) + return -ENOMEM; + + pbl_start = rdev_p->rnic_info.pbl_base; + pbl_chunk = rdev_p->rnic_info.pbl_top - pbl_start + 1; + + while (pbl_start < rdev_p->rnic_info.pbl_top) { + pbl_chunk = min(rdev_p->rnic_info.pbl_top - pbl_start + 1, + pbl_chunk); + if (gen_pool_add(rdev_p->pbl_pool, pbl_start, pbl_chunk, -1)) { + PDBG("%s failed to add PBL chunk (%x/%x)\n", + __func__, pbl_start, pbl_chunk); + if (pbl_chunk <= 1024 << MIN_PBL_SHIFT) { + printk(KERN_WARNING MOD "%s: Failed to add all PBL chunks (%x/%x)\n", + __func__, pbl_start, rdev_p->rnic_info.pbl_top - pbl_start); + return 0; + } + pbl_chunk >>= 1; + } else { + PDBG("%s added PBL chunk (%x/%x)\n", + __func__, pbl_start, pbl_chunk); + pbl_start += pbl_chunk; + } + } + + return 0; } void cxio_hal_pblpool_destroy(struct cxio_rdev *rdev_p) -- cgit v1.2.3-70-g09d2 From 3eb6753e20af1803d7784efc36e8208e8d5fac05 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 6 May 2008 15:15:12 -0700 Subject: usb: Sparc build fix, make USB_ISP1760_OF depend on PPC_OF Sparc doesn't have some of the OF interfaces this driver wants to use. Acked-by: Benjamin Herrenschmidt Signed-off-by: David S. Miller --- drivers/usb/host/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 33b467a8352..1ef6df395e0 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -129,7 +129,7 @@ config USB_ISP1760_PCI config USB_ISP1760_OF bool "Support for the OF platform bus" - depends on USB_ISP1760_HCD && OF + depends on USB_ISP1760_HCD && PPC_OF ---help--- Enables support for the device present on the PowerPC OpenFirmware platform bus. -- cgit v1.2.3-70-g09d2 From 273748cc908a901d082b4da5a16b2541c9d78a02 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Tue, 6 May 2008 15:56:22 -0700 Subject: RDMA/cxgb3: Fix severe limit on userspace memory registration size Currently, iw_cxgb3 is severely limited on the amount of userspace memory that can be registered in in a single memory region, which causes big problems for applications that expect to be able to register 100s of MB. The problem is that the driver uses a single kmalloc()ed buffer to hold the physical buffer list (PBL) for the entire memory region during registration, which means that 8 bytes of contiguous memory are required for each page of memory being registered. For example, a 64 MB registration will require 128 KB of contiguous memory with 4 KB pages, and it unlikely that such an allocation will succeed on a busy system. This is purely a driver problem: the temporary page list buffer is not needed by the hardware, so we can fix this by writing the PBL to the hardware in page-sized chunks rather than all at once. We do this by splitting the memory registration operation up into several steps: - Allocate PBL space in adapter memory for the full registration - Copy PBL to adapter memory in chunks - Allocate STag and enable memory region This also allows several other cleanups to the __cxio_tpt_op() interface and related parts of the driver. This change leaves the reregister memory region and memory window operations broken, but they already didn't work due to other longstanding bugs, so fixing them will be left to a later patch. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/cxgb3/cxio_hal.c | 90 ++++++++++++++--------------- drivers/infiniband/hw/cxgb3/cxio_hal.h | 8 +-- drivers/infiniband/hw/cxgb3/iwch_mem.c | 75 +++++++++++++++--------- drivers/infiniband/hw/cxgb3/iwch_provider.c | 68 +++++++++++++++++----- drivers/infiniband/hw/cxgb3/iwch_provider.h | 8 +-- 5 files changed, 155 insertions(+), 94 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c b/drivers/infiniband/hw/cxgb3/cxio_hal.c index 5fd8506a865..ebf9d3043f8 100644 --- a/drivers/infiniband/hw/cxgb3/cxio_hal.c +++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c @@ -588,7 +588,7 @@ static int cxio_hal_destroy_ctrl_qp(struct cxio_rdev *rdev_p) * caller aquires the ctrl_qp lock before the call */ static int cxio_hal_ctrl_qp_write_mem(struct cxio_rdev *rdev_p, u32 addr, - u32 len, void *data, int completion) + u32 len, void *data) { u32 i, nr_wqe, copy_len; u8 *copy_data; @@ -624,7 +624,7 @@ static int cxio_hal_ctrl_qp_write_mem(struct cxio_rdev *rdev_p, u32 addr, flag = 0; if (i == (nr_wqe - 1)) { /* last WQE */ - flag = completion ? T3_COMPLETION_FLAG : 0; + flag = T3_COMPLETION_FLAG; if (len % 32) utx_len = len / 32 + 1; else @@ -683,21 +683,20 @@ static int cxio_hal_ctrl_qp_write_mem(struct cxio_rdev *rdev_p, u32 addr, return 0; } -/* IN: stag key, pdid, perm, zbva, to, len, page_size, pbl, and pbl_size - * OUT: stag index, actual pbl_size, pbl_addr allocated. +/* IN: stag key, pdid, perm, zbva, to, len, page_size, pbl_size and pbl_addr + * OUT: stag index * TBD: shared memory region support */ static int __cxio_tpt_op(struct cxio_rdev *rdev_p, u32 reset_tpt_entry, u32 *stag, u8 stag_state, u32 pdid, enum tpt_mem_type type, enum tpt_mem_perm perm, - u32 zbva, u64 to, u32 len, u8 page_size, __be64 *pbl, - u32 *pbl_size, u32 *pbl_addr) + u32 zbva, u64 to, u32 len, u8 page_size, + u32 pbl_size, u32 pbl_addr) { int err; struct tpt_entry tpt; u32 stag_idx; u32 wptr; - int rereg = (*stag != T3_STAG_UNSET); stag_state = stag_state > 0; stag_idx = (*stag) >> 8; @@ -711,30 +710,8 @@ static int __cxio_tpt_op(struct cxio_rdev *rdev_p, u32 reset_tpt_entry, PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n", __func__, stag_state, type, pdid, stag_idx); - if (reset_tpt_entry) - cxio_hal_pblpool_free(rdev_p, *pbl_addr, *pbl_size << 3); - else if (!rereg) { - *pbl_addr = cxio_hal_pblpool_alloc(rdev_p, *pbl_size << 3); - if (!*pbl_addr) { - return -ENOMEM; - } - } - mutex_lock(&rdev_p->ctrl_qp.lock); - /* write PBL first if any - update pbl only if pbl list exist */ - if (pbl) { - - PDBG("%s *pdb_addr 0x%x, pbl_base 0x%x, pbl_size %d\n", - __func__, *pbl_addr, rdev_p->rnic_info.pbl_base, - *pbl_size); - err = cxio_hal_ctrl_qp_write_mem(rdev_p, - (*pbl_addr >> 5), - (*pbl_size << 3), pbl, 0); - if (err) - goto ret; - } - /* write TPT entry */ if (reset_tpt_entry) memset(&tpt, 0, sizeof(tpt)); @@ -749,23 +726,23 @@ static int __cxio_tpt_op(struct cxio_rdev *rdev_p, u32 reset_tpt_entry, V_TPT_ADDR_TYPE((zbva ? TPT_ZBTO : TPT_VATO)) | V_TPT_PAGE_SIZE(page_size)); tpt.rsvd_pbl_addr = reset_tpt_entry ? 0 : - cpu_to_be32(V_TPT_PBL_ADDR(PBL_OFF(rdev_p, *pbl_addr)>>3)); + cpu_to_be32(V_TPT_PBL_ADDR(PBL_OFF(rdev_p, pbl_addr)>>3)); tpt.len = cpu_to_be32(len); tpt.va_hi = cpu_to_be32((u32) (to >> 32)); tpt.va_low_or_fbo = cpu_to_be32((u32) (to & 0xFFFFFFFFULL)); tpt.rsvd_bind_cnt_or_pstag = 0; tpt.rsvd_pbl_size = reset_tpt_entry ? 0 : - cpu_to_be32(V_TPT_PBL_SIZE((*pbl_size) >> 2)); + cpu_to_be32(V_TPT_PBL_SIZE(pbl_size >> 2)); } err = cxio_hal_ctrl_qp_write_mem(rdev_p, stag_idx + (rdev_p->rnic_info.tpt_base >> 5), - sizeof(tpt), &tpt, 1); + sizeof(tpt), &tpt); /* release the stag index to free pool */ if (reset_tpt_entry) cxio_hal_put_stag(rdev_p->rscp, stag_idx); -ret: + wptr = rdev_p->ctrl_qp.wptr; mutex_unlock(&rdev_p->ctrl_qp.lock); if (!err) @@ -776,44 +753,67 @@ ret: return err; } +int cxio_write_pbl(struct cxio_rdev *rdev_p, __be64 *pbl, + u32 pbl_addr, u32 pbl_size) +{ + u32 wptr; + int err; + + PDBG("%s *pdb_addr 0x%x, pbl_base 0x%x, pbl_size %d\n", + __func__, pbl_addr, rdev_p->rnic_info.pbl_base, + pbl_size); + + mutex_lock(&rdev_p->ctrl_qp.lock); + err = cxio_hal_ctrl_qp_write_mem(rdev_p, pbl_addr >> 5, pbl_size << 3, + pbl); + wptr = rdev_p->ctrl_qp.wptr; + mutex_unlock(&rdev_p->ctrl_qp.lock); + if (err) + return err; + + if (wait_event_interruptible(rdev_p->ctrl_qp.waitq, + SEQ32_GE(rdev_p->ctrl_qp.rptr, + wptr))) + return -ERESTARTSYS; + + return 0; +} + int cxio_register_phys_mem(struct cxio_rdev *rdev_p, u32 *stag, u32 pdid, enum tpt_mem_perm perm, u32 zbva, u64 to, u32 len, - u8 page_size, __be64 *pbl, u32 *pbl_size, - u32 *pbl_addr) + u8 page_size, u32 pbl_size, u32 pbl_addr) { *stag = T3_STAG_UNSET; return __cxio_tpt_op(rdev_p, 0, stag, 1, pdid, TPT_NON_SHARED_MR, perm, - zbva, to, len, page_size, pbl, pbl_size, pbl_addr); + zbva, to, len, page_size, pbl_size, pbl_addr); } int cxio_reregister_phys_mem(struct cxio_rdev *rdev_p, u32 *stag, u32 pdid, enum tpt_mem_perm perm, u32 zbva, u64 to, u32 len, - u8 page_size, __be64 *pbl, u32 *pbl_size, - u32 *pbl_addr) + u8 page_size, u32 pbl_size, u32 pbl_addr) { return __cxio_tpt_op(rdev_p, 0, stag, 1, pdid, TPT_NON_SHARED_MR, perm, - zbva, to, len, page_size, pbl, pbl_size, pbl_addr); + zbva, to, len, page_size, pbl_size, pbl_addr); } int cxio_dereg_mem(struct cxio_rdev *rdev_p, u32 stag, u32 pbl_size, u32 pbl_addr) { - return __cxio_tpt_op(rdev_p, 1, &stag, 0, 0, 0, 0, 0, 0ULL, 0, 0, NULL, - &pbl_size, &pbl_addr); + return __cxio_tpt_op(rdev_p, 1, &stag, 0, 0, 0, 0, 0, 0ULL, 0, 0, + pbl_size, pbl_addr); } int cxio_allocate_window(struct cxio_rdev *rdev_p, u32 * stag, u32 pdid) { - u32 pbl_size = 0; *stag = T3_STAG_UNSET; return __cxio_tpt_op(rdev_p, 0, stag, 0, pdid, TPT_MW, 0, 0, 0ULL, 0, 0, - NULL, &pbl_size, NULL); + 0, 0); } int cxio_deallocate_window(struct cxio_rdev *rdev_p, u32 stag) { - return __cxio_tpt_op(rdev_p, 1, &stag, 0, 0, 0, 0, 0, 0ULL, 0, 0, NULL, - NULL, NULL); + return __cxio_tpt_op(rdev_p, 1, &stag, 0, 0, 0, 0, 0, 0ULL, 0, 0, + 0, 0); } int cxio_rdma_init(struct cxio_rdev *rdev_p, struct t3_rdma_init_attr *attr) diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.h b/drivers/infiniband/hw/cxgb3/cxio_hal.h index 69ab08ebc68..6e128f6bab0 100644 --- a/drivers/infiniband/hw/cxgb3/cxio_hal.h +++ b/drivers/infiniband/hw/cxgb3/cxio_hal.h @@ -154,14 +154,14 @@ int cxio_create_qp(struct cxio_rdev *rdev, u32 kernel_domain, struct t3_wq *wq, int cxio_destroy_qp(struct cxio_rdev *rdev, struct t3_wq *wq, struct cxio_ucontext *uctx); int cxio_peek_cq(struct t3_wq *wr, struct t3_cq *cq, int opcode); +int cxio_write_pbl(struct cxio_rdev *rdev_p, __be64 *pbl, + u32 pbl_addr, u32 pbl_size); int cxio_register_phys_mem(struct cxio_rdev *rdev, u32 * stag, u32 pdid, enum tpt_mem_perm perm, u32 zbva, u64 to, u32 len, - u8 page_size, __be64 *pbl, u32 *pbl_size, - u32 *pbl_addr); + u8 page_size, u32 pbl_size, u32 pbl_addr); int cxio_reregister_phys_mem(struct cxio_rdev *rdev, u32 * stag, u32 pdid, enum tpt_mem_perm perm, u32 zbva, u64 to, u32 len, - u8 page_size, __be64 *pbl, u32 *pbl_size, - u32 *pbl_addr); + u8 page_size, u32 pbl_size, u32 pbl_addr); int cxio_dereg_mem(struct cxio_rdev *rdev, u32 stag, u32 pbl_size, u32 pbl_addr); int cxio_allocate_window(struct cxio_rdev *rdev, u32 * stag, u32 pdid); diff --git a/drivers/infiniband/hw/cxgb3/iwch_mem.c b/drivers/infiniband/hw/cxgb3/iwch_mem.c index 58c3d61bcd1..ec49a5cbdeb 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_mem.c +++ b/drivers/infiniband/hw/cxgb3/iwch_mem.c @@ -35,17 +35,26 @@ #include #include "cxio_hal.h" +#include "cxio_resource.h" #include "iwch.h" #include "iwch_provider.h" -int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php, - struct iwch_mr *mhp, - int shift, - __be64 *page_list) +static void iwch_finish_mem_reg(struct iwch_mr *mhp, u32 stag) { - u32 stag; u32 mmid; + mhp->attr.state = 1; + mhp->attr.stag = stag; + mmid = stag >> 8; + mhp->ibmr.rkey = mhp->ibmr.lkey = stag; + insert_handle(mhp->rhp, &mhp->rhp->mmidr, mhp, mmid); + PDBG("%s mmid 0x%x mhp %p\n", __func__, mmid, mhp); +} + +int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php, + struct iwch_mr *mhp, int shift) +{ + u32 stag; if (cxio_register_phys_mem(&rhp->rdev, &stag, mhp->attr.pdid, @@ -53,28 +62,21 @@ int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php, mhp->attr.zbva, mhp->attr.va_fbo, mhp->attr.len, - shift-12, - page_list, - &mhp->attr.pbl_size, &mhp->attr.pbl_addr)) + shift - 12, + mhp->attr.pbl_size, mhp->attr.pbl_addr)) return -ENOMEM; - mhp->attr.state = 1; - mhp->attr.stag = stag; - mmid = stag >> 8; - mhp->ibmr.rkey = mhp->ibmr.lkey = stag; - insert_handle(rhp, &rhp->mmidr, mhp, mmid); - PDBG("%s mmid 0x%x mhp %p\n", __func__, mmid, mhp); + + iwch_finish_mem_reg(mhp, stag); + return 0; } int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php, struct iwch_mr *mhp, int shift, - __be64 *page_list, int npages) { u32 stag; - u32 mmid; - /* We could support this... */ if (npages > mhp->attr.pbl_size) @@ -87,19 +89,40 @@ int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php, mhp->attr.zbva, mhp->attr.va_fbo, mhp->attr.len, - shift-12, - page_list, - &mhp->attr.pbl_size, &mhp->attr.pbl_addr)) + shift - 12, + mhp->attr.pbl_size, mhp->attr.pbl_addr)) return -ENOMEM; - mhp->attr.state = 1; - mhp->attr.stag = stag; - mmid = stag >> 8; - mhp->ibmr.rkey = mhp->ibmr.lkey = stag; - insert_handle(rhp, &rhp->mmidr, mhp, mmid); - PDBG("%s mmid 0x%x mhp %p\n", __func__, mmid, mhp); + + iwch_finish_mem_reg(mhp, stag); + + return 0; +} + +int iwch_alloc_pbl(struct iwch_mr *mhp, int npages) +{ + mhp->attr.pbl_addr = cxio_hal_pblpool_alloc(&mhp->rhp->rdev, + npages << 3); + + if (!mhp->attr.pbl_addr) + return -ENOMEM; + + mhp->attr.pbl_size = npages; + return 0; } +void iwch_free_pbl(struct iwch_mr *mhp) +{ + cxio_hal_pblpool_free(&mhp->rhp->rdev, mhp->attr.pbl_addr, + mhp->attr.pbl_size << 3); +} + +int iwch_write_pbl(struct iwch_mr *mhp, __be64 *pages, int npages, int offset) +{ + return cxio_write_pbl(&mhp->rhp->rdev, pages, + mhp->attr.pbl_addr + (offset << 3), npages); +} + int build_phys_page_list(struct ib_phys_buf *buffer_list, int num_phys_buf, u64 *iova_start, diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c index d07d3a377b5..8934178a23e 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c @@ -442,6 +442,7 @@ static int iwch_dereg_mr(struct ib_mr *ib_mr) mmid = mhp->attr.stag >> 8; cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size, mhp->attr.pbl_addr); + iwch_free_pbl(mhp); remove_handle(rhp, &rhp->mmidr, mmid); if (mhp->kva) kfree((void *) (unsigned long) mhp->kva); @@ -475,6 +476,8 @@ static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd, if (!mhp) return ERR_PTR(-ENOMEM); + mhp->rhp = rhp; + /* First check that we have enough alignment */ if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) { ret = -EINVAL; @@ -492,7 +495,17 @@ static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd, if (ret) goto err; - mhp->rhp = rhp; + ret = iwch_alloc_pbl(mhp, npages); + if (ret) { + kfree(page_list); + goto err_pbl; + } + + ret = iwch_write_pbl(mhp, page_list, npages, 0); + kfree(page_list); + if (ret) + goto err_pbl; + mhp->attr.pdid = php->pdid; mhp->attr.zbva = 0; @@ -502,12 +515,15 @@ static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd, mhp->attr.len = (u32) total_size; mhp->attr.pbl_size = npages; - ret = iwch_register_mem(rhp, php, mhp, shift, page_list); - kfree(page_list); - if (ret) { - goto err; - } + ret = iwch_register_mem(rhp, php, mhp, shift); + if (ret) + goto err_pbl; + return &mhp->ibmr; + +err_pbl: + iwch_free_pbl(mhp); + err: kfree(mhp); return ERR_PTR(ret); @@ -560,7 +576,7 @@ static int iwch_reregister_phys_mem(struct ib_mr *mr, return ret; } - ret = iwch_reregister_mem(rhp, php, &mh, shift, page_list, npages); + ret = iwch_reregister_mem(rhp, php, &mh, shift, npages); kfree(page_list); if (ret) { return ret; @@ -602,6 +618,8 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, if (!mhp) return ERR_PTR(-ENOMEM); + mhp->rhp = rhp; + mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0); if (IS_ERR(mhp->umem)) { err = PTR_ERR(mhp->umem); @@ -615,10 +633,14 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, list_for_each_entry(chunk, &mhp->umem->chunk_list, list) n += chunk->nents; - pages = kmalloc(n * sizeof(u64), GFP_KERNEL); + err = iwch_alloc_pbl(mhp, n); + if (err) + goto err; + + pages = (__be64 *) __get_free_page(GFP_KERNEL); if (!pages) { err = -ENOMEM; - goto err; + goto err_pbl; } i = n = 0; @@ -630,25 +652,38 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, pages[i++] = cpu_to_be64(sg_dma_address( &chunk->page_list[j]) + mhp->umem->page_size * k); + if (i == PAGE_SIZE / sizeof *pages) { + err = iwch_write_pbl(mhp, pages, i, n); + if (err) + goto pbl_done; + n += i; + i = 0; + } } } - mhp->rhp = rhp; + if (i) + err = iwch_write_pbl(mhp, pages, i, n); + +pbl_done: + free_page((unsigned long) pages); + if (err) + goto err_pbl; + mhp->attr.pdid = php->pdid; mhp->attr.zbva = 0; mhp->attr.perms = iwch_ib_to_tpt_access(acc); mhp->attr.va_fbo = virt; mhp->attr.page_size = shift - 12; mhp->attr.len = (u32) length; - mhp->attr.pbl_size = i; - err = iwch_register_mem(rhp, php, mhp, shift, pages); - kfree(pages); + + err = iwch_register_mem(rhp, php, mhp, shift); if (err) - goto err; + goto err_pbl; if (udata && !t3a_device(rhp)) { uresp.pbl_addr = (mhp->attr.pbl_addr - - rhp->rdev.rnic_info.pbl_base) >> 3; + rhp->rdev.rnic_info.pbl_base) >> 3; PDBG("%s user resp pbl_addr 0x%x\n", __func__, uresp.pbl_addr); @@ -661,6 +696,9 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, return &mhp->ibmr; +err_pbl: + iwch_free_pbl(mhp); + err: ib_umem_release(mhp->umem); kfree(mhp); diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.h b/drivers/infiniband/hw/cxgb3/iwch_provider.h index db5100d27ca..836163fc542 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.h +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.h @@ -340,14 +340,14 @@ int iwch_quiesce_qps(struct iwch_cq *chp); int iwch_resume_qps(struct iwch_cq *chp); void stop_read_rep_timer(struct iwch_qp *qhp); int iwch_register_mem(struct iwch_dev *rhp, struct iwch_pd *php, - struct iwch_mr *mhp, - int shift, - __be64 *page_list); + struct iwch_mr *mhp, int shift); int iwch_reregister_mem(struct iwch_dev *rhp, struct iwch_pd *php, struct iwch_mr *mhp, int shift, - __be64 *page_list, int npages); +int iwch_alloc_pbl(struct iwch_mr *mhp, int npages); +void iwch_free_pbl(struct iwch_mr *mhp); +int iwch_write_pbl(struct iwch_mr *mhp, __be64 *pages, int npages, int offset); int build_phys_page_list(struct ib_phys_buf *buffer_list, int num_phys_buf, u64 *iova_start, -- cgit v1.2.3-70-g09d2 From 139b83dd57248a3c8fcfb256e562311ad61478e9 Mon Sep 17 00:00:00 2001 From: Michael Ernst Date: Wed, 7 May 2008 09:22:54 +0200 Subject: [S390] cio: Remove cio_msg kernel parameter. The only sporadically used CIO_DEBUG messages are replaced by ordinary CIO_MSG_EVENT messages. The CIO_MSG_EVENT messages debug levels are consolidated. Signed-off-by: Michael Ernst Signed-off-by: Martin Schwidefsky --- Documentation/s390/CommonIO | 11 ----------- drivers/s390/cio/blacklist.c | 1 - drivers/s390/cio/cio.c | 39 ++++++++++--------------------------- drivers/s390/cio/cio.h | 2 -- drivers/s390/cio/cio_debug.h | 6 ------ drivers/s390/cio/css.c | 4 ++-- drivers/s390/cio/device.c | 25 ++++++++++++------------ drivers/s390/cio/device_fsm.c | 44 +++++++++++++++++++++--------------------- drivers/s390/cio/device_id.c | 4 ++-- drivers/s390/cio/device_pgid.c | 12 ++++++------ 10 files changed, 54 insertions(+), 94 deletions(-) (limited to 'drivers') diff --git a/Documentation/s390/CommonIO b/Documentation/s390/CommonIO index 8fbc0a85287..bf0baa19ec2 100644 --- a/Documentation/s390/CommonIO +++ b/Documentation/s390/CommonIO @@ -8,17 +8,6 @@ Command line parameters Enable logging of debug information in case of ccw device timeouts. - -* cio_msg = yes | no - - Determines whether information on found devices and sensed device - characteristics should be shown during startup or when new devices are - found, i. e. messages of the types "Detected device 0.0.4711 on subchannel - 0.0.0042" and "SenseID: Device 0.0.4711 reports: ...". - - Default is off. - - * cio_ignore = {all} | { | } | {! | !} diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c index 40ef948fcb3..08444761899 100644 --- a/drivers/s390/cio/blacklist.c +++ b/drivers/s390/cio/blacklist.c @@ -199,7 +199,6 @@ blacklist_parse_parameters (char *str, range_action action) static int __init blacklist_setup (char *str) { - CIO_MSG_EVENT(6, "Reading blacklist parameters\n"); return blacklist_parse_parameters (str, add); } diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 08a57816130..82c6a2d4512 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -39,23 +39,6 @@ debug_info_t *cio_debug_msg_id; debug_info_t *cio_debug_trace_id; debug_info_t *cio_debug_crw_id; -int cio_show_msg; - -static int __init -cio_setup (char *parm) -{ - if (!strcmp (parm, "yes")) - cio_show_msg = 1; - else if (!strcmp (parm, "no")) - cio_show_msg = 0; - else - printk(KERN_ERR "cio: cio_setup: " - "invalid cio_msg parameter '%s'", parm); - return 1; -} - -__setup ("cio_msg=", cio_setup); - /* * Function: cio_debug_init * Initializes three debug logs for common I/O: @@ -166,7 +149,7 @@ cio_start_handle_notoper(struct subchannel *sch, __u8 lpm) stsch (sch->schid, &sch->schib); - CIO_MSG_EVENT(0, "cio_start: 'not oper' status for " + CIO_MSG_EVENT(2, "cio_start: 'not oper' status for " "subchannel 0.%x.%04x!\n", sch->schid.ssid, sch->schid.sch_no); sprintf(dbf_text, "no%s", sch->dev.bus_id); @@ -567,10 +550,9 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid) * ... just being curious we check for non I/O subchannels */ if (sch->st != 0) { - CIO_DEBUG(KERN_INFO, 0, - "Subchannel 0.%x.%04x reports " - "non-I/O subchannel type %04X\n", - sch->schid.ssid, sch->schid.sch_no, sch->st); + CIO_MSG_EVENT(4, "Subchannel 0.%x.%04x reports " + "non-I/O subchannel type %04X\n", + sch->schid.ssid, sch->schid.sch_no, sch->st); /* We stop here for non-io subchannels. */ err = sch->st; goto out; @@ -588,7 +570,7 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid) * This device must not be known to Linux. So we simply * say that there is no device and return ENODEV. */ - CIO_MSG_EVENT(4, "Blacklisted device detected " + CIO_MSG_EVENT(6, "Blacklisted device detected " "at devno %04X, subchannel set %x\n", sch->schib.pmcw.dev, sch->schid.ssid); err = -ENODEV; @@ -601,12 +583,11 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid) sch->lpm = sch->schib.pmcw.pam & sch->opm; sch->isc = 3; - CIO_DEBUG(KERN_INFO, 0, - "Detected device %04x on subchannel 0.%x.%04X" - " - PIM = %02X, PAM = %02X, POM = %02X\n", - sch->schib.pmcw.dev, sch->schid.ssid, - sch->schid.sch_no, sch->schib.pmcw.pim, - sch->schib.pmcw.pam, sch->schib.pmcw.pom); + CIO_MSG_EVENT(6, "Detected device %04x on subchannel 0.%x.%04X " + "- PIM = %02X, PAM = %02X, POM = %02X\n", + sch->schib.pmcw.dev, sch->schid.ssid, + sch->schid.sch_no, sch->schib.pmcw.pim, + sch->schib.pmcw.pam, sch->schib.pmcw.pom); /* * We now have to initially ... diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h index 3c75412904d..6e933aebe01 100644 --- a/drivers/s390/cio/cio.h +++ b/drivers/s390/cio/cio.h @@ -118,6 +118,4 @@ extern void *cio_get_console_priv(void); #define cio_get_console_priv() NULL #endif -extern int cio_show_msg; - #endif diff --git a/drivers/s390/cio/cio_debug.h b/drivers/s390/cio/cio_debug.h index d7429ef6c66..e64e8278c42 100644 --- a/drivers/s390/cio/cio_debug.h +++ b/drivers/s390/cio/cio_debug.h @@ -31,10 +31,4 @@ static inline void CIO_HEX_EVENT(int level, void *data, int length) } } -#define CIO_DEBUG(printk_level, event_level, msg...) do { \ - if (cio_show_msg) \ - printk(printk_level "cio: " msg); \ - CIO_MSG_EVENT(event_level, msg); \ - } while (0) - #endif diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index 595e327d2f7..a76956512b2 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -570,7 +570,7 @@ static void reprobe_all(struct work_struct *unused) { int ret; - CIO_MSG_EVENT(2, "reprobe start\n"); + CIO_MSG_EVENT(4, "reprobe start\n"); need_reprobe = 0; /* Make sure initial subchannel scan is done. */ @@ -578,7 +578,7 @@ static void reprobe_all(struct work_struct *unused) atomic_read(&ccw_device_init_count) == 0); ret = for_each_subchannel_staged(NULL, reprobe_subchannel, NULL); - CIO_MSG_EVENT(2, "reprobe done (rc=%d, need_reprobe=%d)\n", ret, + CIO_MSG_EVENT(4, "reprobe done (rc=%d, need_reprobe=%d)\n", ret, need_reprobe); } diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index abfd601d237..e22813db74a 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -341,7 +341,7 @@ ccw_device_remove_disconnected(struct ccw_device *cdev) rc = device_schedule_callback(&cdev->dev, ccw_device_remove_orphan_cb); if (rc) - CIO_MSG_EVENT(2, "Couldn't unregister orphan " + CIO_MSG_EVENT(0, "Couldn't unregister orphan " "0.%x.%04x\n", cdev->private->dev_id.ssid, cdev->private->dev_id.devno); @@ -351,7 +351,7 @@ ccw_device_remove_disconnected(struct ccw_device *cdev) rc = device_schedule_callback(cdev->dev.parent, ccw_device_remove_sch_cb); if (rc) - CIO_MSG_EVENT(2, "Couldn't unregister disconnected device " + CIO_MSG_EVENT(0, "Couldn't unregister disconnected device " "0.%x.%04x\n", cdev->private->dev_id.ssid, cdev->private->dev_id.devno); @@ -397,7 +397,7 @@ int ccw_device_set_offline(struct ccw_device *cdev) if (ret == 0) wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev)); else { - CIO_MSG_EVENT(2, "ccw_device_offline returned %d, " + CIO_MSG_EVENT(0, "ccw_device_offline returned %d, " "device 0.%x.%04x\n", ret, cdev->private->dev_id.ssid, cdev->private->dev_id.devno); @@ -433,7 +433,7 @@ int ccw_device_set_online(struct ccw_device *cdev) if (ret == 0) wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev)); else { - CIO_MSG_EVENT(2, "ccw_device_online returned %d, " + CIO_MSG_EVENT(0, "ccw_device_online returned %d, " "device 0.%x.%04x\n", ret, cdev->private->dev_id.ssid, cdev->private->dev_id.devno); @@ -451,7 +451,7 @@ int ccw_device_set_online(struct ccw_device *cdev) if (ret == 0) wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev)); else - CIO_MSG_EVENT(2, "ccw_device_offline returned %d, " + CIO_MSG_EVENT(0, "ccw_device_offline returned %d, " "device 0.%x.%04x\n", ret, cdev->private->dev_id.ssid, cdev->private->dev_id.devno); @@ -803,7 +803,7 @@ static void sch_attach_disconnected_device(struct subchannel *sch, other_sch = to_subchannel(get_device(cdev->dev.parent)); ret = device_move(&cdev->dev, &sch->dev); if (ret) { - CIO_MSG_EVENT(2, "Moving disconnected device 0.%x.%04x failed " + CIO_MSG_EVENT(0, "Moving disconnected device 0.%x.%04x failed " "(ret=%d)!\n", cdev->private->dev_id.ssid, cdev->private->dev_id.devno, ret); put_device(&other_sch->dev); @@ -933,7 +933,7 @@ io_subchannel_register(struct work_struct *work) ret = device_reprobe(&cdev->dev); if (ret) /* We can't do much here. */ - CIO_MSG_EVENT(2, "device_reprobe() returned" + CIO_MSG_EVENT(0, "device_reprobe() returned" " %d for 0.%x.%04x\n", ret, cdev->private->dev_id.ssid, cdev->private->dev_id.devno); @@ -1086,7 +1086,7 @@ static void ccw_device_move_to_sch(struct work_struct *work) rc = device_move(&cdev->dev, &sch->dev); mutex_unlock(&sch->reg_mutex); if (rc) { - CIO_MSG_EVENT(2, "Moving device 0.%x.%04x to subchannel " + CIO_MSG_EVENT(0, "Moving device 0.%x.%04x to subchannel " "0.%x.%04x failed (ret=%d)!\n", cdev->private->dev_id.ssid, cdev->private->dev_id.devno, sch->schid.ssid, @@ -1446,8 +1446,7 @@ ccw_device_remove (struct device *dev) wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev)); else - //FIXME: we can't fail! - CIO_MSG_EVENT(2, "ccw_device_offline returned %d, " + CIO_MSG_EVENT(0, "ccw_device_offline returned %d, " "device 0.%x.%04x\n", ret, cdev->private->dev_id.ssid, cdev->private->dev_id.devno); @@ -1524,7 +1523,7 @@ static int recovery_check(struct device *dev, void *data) spin_lock_irq(cdev->ccwlock); switch (cdev->private->state) { case DEV_STATE_DISCONNECTED: - CIO_MSG_EVENT(3, "recovery: trigger 0.%x.%04x\n", + CIO_MSG_EVENT(4, "recovery: trigger 0.%x.%04x\n", cdev->private->dev_id.ssid, cdev->private->dev_id.devno); dev_fsm_event(cdev, DEV_EVENT_VERIFY); @@ -1554,7 +1553,7 @@ static void recovery_work_func(struct work_struct *unused) } spin_unlock_irq(&recovery_lock); } else - CIO_MSG_EVENT(2, "recovery: end\n"); + CIO_MSG_EVENT(4, "recovery: end\n"); } static DECLARE_WORK(recovery_work, recovery_work_func); @@ -1572,7 +1571,7 @@ void ccw_device_schedule_recovery(void) { unsigned long flags; - CIO_MSG_EVENT(2, "recovery: schedule\n"); + CIO_MSG_EVENT(4, "recovery: schedule\n"); spin_lock_irqsave(&recovery_lock, flags); if (!timer_pending(&recovery_timer) || (recovery_phase != 0)) { recovery_phase = 0; diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 99403b0a97a..e268d5a77c1 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -322,10 +322,10 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) same_dev = 0; /* Keep the compiler quiet... */ switch (state) { case DEV_STATE_NOT_OPER: - CIO_DEBUG(KERN_WARNING, 2, - "SenseID : unknown device %04x on subchannel " - "0.%x.%04x\n", cdev->private->dev_id.devno, - sch->schid.ssid, sch->schid.sch_no); + CIO_MSG_EVENT(2, "SenseID : unknown device %04x on " + "subchannel 0.%x.%04x\n", + cdev->private->dev_id.devno, + sch->schid.ssid, sch->schid.sch_no); break; case DEV_STATE_OFFLINE: if (cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID) { @@ -348,20 +348,19 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) return; } /* Issue device info message. */ - CIO_DEBUG(KERN_INFO, 2, - "SenseID : device 0.%x.%04x reports: " - "CU Type/Mod = %04X/%02X, Dev Type/Mod = " - "%04X/%02X\n", - cdev->private->dev_id.ssid, - cdev->private->dev_id.devno, - cdev->id.cu_type, cdev->id.cu_model, - cdev->id.dev_type, cdev->id.dev_model); + CIO_MSG_EVENT(4, "SenseID : device 0.%x.%04x reports: " + "CU Type/Mod = %04X/%02X, Dev Type/Mod = " + "%04X/%02X\n", + cdev->private->dev_id.ssid, + cdev->private->dev_id.devno, + cdev->id.cu_type, cdev->id.cu_model, + cdev->id.dev_type, cdev->id.dev_model); break; case DEV_STATE_BOXED: - CIO_DEBUG(KERN_WARNING, 2, - "SenseID : boxed device %04x on subchannel " - "0.%x.%04x\n", cdev->private->dev_id.devno, - sch->schid.ssid, sch->schid.sch_no); + CIO_MSG_EVENT(0, "SenseID : boxed device %04x on " + " subchannel 0.%x.%04x\n", + cdev->private->dev_id.devno, + sch->schid.ssid, sch->schid.sch_no); break; } cdev->private->state = state; @@ -443,9 +442,8 @@ ccw_device_done(struct ccw_device *cdev, int state) if (state == DEV_STATE_BOXED) - CIO_DEBUG(KERN_WARNING, 2, - "Boxed device %04x on subchannel %04x\n", - cdev->private->dev_id.devno, sch->schid.sch_no); + CIO_MSG_EVENT(0, "Boxed device %04x on subchannel %04x\n", + cdev->private->dev_id.devno, sch->schid.sch_no); if (cdev->private->flags.donotify) { cdev->private->flags.donotify = 0; @@ -900,7 +898,7 @@ ccw_device_w4sense(struct ccw_device *cdev, enum dev_event dev_event) /* Basic sense hasn't started. Try again. */ ccw_device_do_sense(cdev, irb); else { - CIO_MSG_EVENT(2, "Huh? 0.%x.%04x: unsolicited " + CIO_MSG_EVENT(0, "0.%x.%04x: unsolicited " "interrupt during w4sense...\n", cdev->private->dev_id.ssid, cdev->private->dev_id.devno); @@ -1169,8 +1167,10 @@ ccw_device_nop(struct ccw_device *cdev, enum dev_event dev_event) static void ccw_device_bug(struct ccw_device *cdev, enum dev_event dev_event) { - CIO_MSG_EVENT(0, "dev_jumptable[%i][%i] == NULL\n", - cdev->private->state, dev_event); + CIO_MSG_EVENT(0, "Internal state [%i][%i] not handled for device " + "0.%x.%04x\n", cdev->private->state, dev_event, + cdev->private->dev_id.ssid, + cdev->private->dev_id.devno); BUG(); } diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c index dc4d87f77f6..cba7020517e 100644 --- a/drivers/s390/cio/device_id.c +++ b/drivers/s390/cio/device_id.c @@ -214,7 +214,7 @@ ccw_device_check_sense_id(struct ccw_device *cdev) * sense id information. So, for intervention required, * we use the "whack it until it talks" strategy... */ - CIO_MSG_EVENT(2, "SenseID : device %04x on Subchannel " + CIO_MSG_EVENT(0, "SenseID : device %04x on Subchannel " "0.%x.%04x reports cmd reject\n", cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no); @@ -239,7 +239,7 @@ ccw_device_check_sense_id(struct ccw_device *cdev) lpm = to_io_private(sch)->orb.lpm; if ((lpm & sch->schib.pmcw.pim & sch->schib.pmcw.pam) != 0) - CIO_MSG_EVENT(2, "SenseID : path %02X for device %04x " + CIO_MSG_EVENT(4, "SenseID : path %02X for device %04x " "on subchannel 0.%x.%04x is " "'not operational'\n", lpm, cdev->private->dev_id.devno, diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c index c52449a1f9f..ba559053402 100644 --- a/drivers/s390/cio/device_pgid.c +++ b/drivers/s390/cio/device_pgid.c @@ -79,7 +79,7 @@ __ccw_device_sense_pgid_start(struct ccw_device *cdev) /* ret is 0, -EBUSY, -EACCES or -ENODEV */ if (ret != -EACCES) return ret; - CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel " + CIO_MSG_EVENT(3, "SNID - Device %04x on Subchannel " "0.%x.%04x, lpm %02X, became 'not " "operational'\n", cdev->private->dev_id.devno, @@ -159,7 +159,7 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev) u8 lpm; lpm = to_io_private(sch)->orb.lpm; - CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel 0.%x.%04x," + CIO_MSG_EVENT(3, "SNID - Device %04x on Subchannel 0.%x.%04x," " lpm %02X, became 'not operational'\n", cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no, lpm); @@ -275,7 +275,7 @@ __ccw_device_do_pgid(struct ccw_device *cdev, __u8 func) return ret; } /* PGID command failed on this path. */ - CIO_MSG_EVENT(2, "SPID - Device %04x on Subchannel " + CIO_MSG_EVENT(3, "SPID - Device %04x on Subchannel " "0.%x.%04x, lpm %02X, became 'not operational'\n", cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no, cdev->private->imask); @@ -317,7 +317,7 @@ static int __ccw_device_do_nop(struct ccw_device *cdev) return ret; } /* nop command failed on this path. */ - CIO_MSG_EVENT(2, "NOP - Device %04x on Subchannel " + CIO_MSG_EVENT(3, "NOP - Device %04x on Subchannel " "0.%x.%04x, lpm %02X, became 'not operational'\n", cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no, cdev->private->imask); @@ -362,7 +362,7 @@ __ccw_device_check_pgid(struct ccw_device *cdev) return -EAGAIN; } if (irb->scsw.cc == 3) { - CIO_MSG_EVENT(2, "SPID - Device %04x on Subchannel 0.%x.%04x," + CIO_MSG_EVENT(3, "SPID - Device %04x on Subchannel 0.%x.%04x," " lpm %02X, became 'not operational'\n", cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no, cdev->private->imask); @@ -391,7 +391,7 @@ static int __ccw_device_check_nop(struct ccw_device *cdev) return -ETIME; } if (irb->scsw.cc == 3) { - CIO_MSG_EVENT(2, "NOP - Device %04x on Subchannel 0.%x.%04x," + CIO_MSG_EVENT(3, "NOP - Device %04x on Subchannel 0.%x.%04x," " lpm %02X, became 'not operational'\n", cdev->private->dev_id.devno, sch->schid.ssid, sch->schid.sch_no, cdev->private->imask); -- cgit v1.2.3-70-g09d2 From 5b8909871b80a6cc2bd21aa5262c1424e3d26339 Mon Sep 17 00:00:00 2001 From: Michael Ernst Date: Wed, 7 May 2008 09:22:55 +0200 Subject: [S390] cio: Fix parsing mechanism for blacklisted devices. New format cssid.ssid.devno is now parsed correctly. Signed-off-by: Michael Ernst Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/blacklist.c | 324 +++++++++++++++++++++++-------------------- 1 file changed, 170 insertions(+), 154 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c index 08444761899..9c21b8f43f9 100644 --- a/drivers/s390/cio/blacklist.c +++ b/drivers/s390/cio/blacklist.c @@ -19,6 +19,7 @@ #include #include +#include #include "blacklist.h" #include "cio.h" @@ -43,163 +44,169 @@ typedef enum {add, free} range_action; * Function: blacklist_range * (Un-)blacklist the devices from-to */ -static void -blacklist_range (range_action action, unsigned int from, unsigned int to, - unsigned int ssid) +static int blacklist_range(range_action action, unsigned int from_ssid, + unsigned int to_ssid, unsigned int from, + unsigned int to, int msgtrigger) { - if (!to) - to = from; - - if (from > to || to > __MAX_SUBCHANNEL || ssid > __MAX_SSID) { - printk (KERN_WARNING "cio: Invalid blacklist range " - "0.%x.%04x to 0.%x.%04x, skipping\n", - ssid, from, ssid, to); - return; + if ((from_ssid > to_ssid) || ((from_ssid == to_ssid) && (from > to))) { + if (msgtrigger) + printk(KERN_WARNING "cio: Invalid cio_ignore range " + "0.%x.%04x-0.%x.%04x\n", from_ssid, from, + to_ssid, to); + return 1; } - for (; from <= to; from++) { + + while ((from_ssid < to_ssid) || ((from_ssid == to_ssid) && + (from <= to))) { if (action == add) - set_bit (from, bl_dev[ssid]); + set_bit(from, bl_dev[from_ssid]); else - clear_bit (from, bl_dev[ssid]); + clear_bit(from, bl_dev[from_ssid]); + from++; + if (from > __MAX_SUBCHANNEL) { + from_ssid++; + from = 0; + } } + + return 0; } -/* - * Function: blacklist_busid - * Get devno/busid from given string. - * Shamelessly grabbed from dasd_devmap.c. - */ -static int -blacklist_busid(char **str, int *id0, int *ssid, int *devno) +static int pure_hex(char **cp, unsigned int *val, int min_digit, + int max_digit, int max_val) { - int val, old_style; - char *sav; + int diff; + unsigned int value; - sav = *str; + diff = 0; + *val = 0; - /* check for leading '0x' */ - old_style = 0; - if ((*str)[0] == '0' && (*str)[1] == 'x') { - *str += 2; - old_style = 1; - } - if (!isxdigit((*str)[0])) /* We require at least one hex digit */ - goto confused; - val = simple_strtoul(*str, str, 16); - if (old_style || (*str)[0] != '.') { - *id0 = *ssid = 0; - if (val < 0 || val > 0xffff) - goto confused; - *devno = val; - if ((*str)[0] != ',' && (*str)[0] != '-' && - (*str)[0] != '\n' && (*str)[0] != '\0') - goto confused; - return 0; + while (isxdigit(**cp) && (diff <= max_digit)) { + + if (isdigit(**cp)) + value = **cp - '0'; + else + value = tolower(**cp) - 'a' + 10; + *val = *val * 16 + value; + (*cp)++; + diff++; } - /* New style x.y.z busid */ - if (val < 0 || val > 0xff) - goto confused; - *id0 = val; - (*str)++; - if (!isxdigit((*str)[0])) /* We require at least one hex digit */ - goto confused; - val = simple_strtoul(*str, str, 16); - if (val < 0 || val > 0xff || (*str)++[0] != '.') - goto confused; - *ssid = val; - if (!isxdigit((*str)[0])) /* We require at least one hex digit */ - goto confused; - val = simple_strtoul(*str, str, 16); - if (val < 0 || val > 0xffff) - goto confused; - *devno = val; - if ((*str)[0] != ',' && (*str)[0] != '-' && - (*str)[0] != '\n' && (*str)[0] != '\0') - goto confused; + + if ((diff < min_digit) || (diff > max_digit) || (*val > max_val)) + return 1; + return 0; -confused: - strsep(str, ",\n"); - printk(KERN_WARNING "cio: Invalid cio_ignore parameter '%s'\n", sav); - return 1; } -static int -blacklist_parse_parameters (char *str, range_action action) +static int parse_busid(char *str, int *cssid, int *ssid, int *devno, + int msgtrigger) { - int from, to, from_id0, to_id0, from_ssid, to_ssid; - - while (*str != 0 && *str != '\n') { - range_action ra = action; - while(*str == ',') - str++; - if (*str == '!') { - ra = !action; - ++str; + char *str_work; + int val, rc, ret; + + rc = 1; + + if (*str == '\0') + goto out; + + /* old style */ + str_work = str; + val = simple_strtoul(str, &str_work, 16); + + if (*str_work == '\0') { + if (val <= __MAX_SUBCHANNEL) { + *devno = val; + *ssid = 0; + *cssid = 0; + rc = 0; } + goto out; + } - /* - * Since we have to parse the proc commands and the - * kernel arguments we have to check four cases - */ - if (strncmp(str,"all,",4) == 0 || strcmp(str,"all") == 0 || - strncmp(str,"all\n",4) == 0 || strncmp(str,"all ",4) == 0) { - int j; - - str += 3; - for (j=0; j <= __MAX_SSID; j++) - blacklist_range(ra, 0, __MAX_SUBCHANNEL, j); - } else { - int rc; + /* new style */ + str_work = str; + ret = pure_hex(&str_work, cssid, 1, 2, __MAX_CSSID); + if (ret || (str_work[0] != '.')) + goto out; + str_work++; + ret = pure_hex(&str_work, ssid, 1, 1, __MAX_SSID); + if (ret || (str_work[0] != '.')) + goto out; + str_work++; + ret = pure_hex(&str_work, devno, 4, 4, __MAX_SUBCHANNEL); + if (ret || (str_work[0] != '\0')) + goto out; + + rc = 0; +out: + if (rc && msgtrigger) + printk(KERN_WARNING "cio: Invalid cio_ignore device '%s'\n", + str); + + return rc; +} - rc = blacklist_busid(&str, &from_id0, - &from_ssid, &from); - if (rc) - continue; - to = from; - to_id0 = from_id0; - to_ssid = from_ssid; - if (*str == '-') { - str++; - rc = blacklist_busid(&str, &to_id0, - &to_ssid, &to); - if (rc) - continue; - } - if (*str == '-') { - printk(KERN_WARNING "cio: invalid cio_ignore " - "parameter '%s'\n", - strsep(&str, ",\n")); - continue; - } - if ((from_id0 != to_id0) || - (from_ssid != to_ssid)) { - printk(KERN_WARNING "cio: invalid cio_ignore " - "range %x.%x.%04x-%x.%x.%04x\n", - from_id0, from_ssid, from, - to_id0, to_ssid, to); - continue; +static int blacklist_parse_parameters(char *str, range_action action, + int msgtrigger) +{ + int from_cssid, to_cssid, from_ssid, to_ssid, from, to; + int rc, totalrc; + char *parm; + range_action ra; + + totalrc = 0; + + while ((parm = strsep(&str, ","))) { + rc = 0; + ra = action; + if (*parm == '!') { + if (ra == add) + ra = free; + else + ra = add; + parm++; + } + if (strcmp(parm, "all") == 0) { + from_cssid = 0; + from_ssid = 0; + from = 0; + to_cssid = __MAX_CSSID; + to_ssid = __MAX_SSID; + to = __MAX_SUBCHANNEL; + } else { + rc = parse_busid(strsep(&parm, "-"), &from_cssid, + &from_ssid, &from, msgtrigger); + if (!rc) { + if (parm != NULL) + rc = parse_busid(parm, &to_cssid, + &to_ssid, &to, + msgtrigger); + else { + to_cssid = from_cssid; + to_ssid = from_ssid; + to = from; + } } - blacklist_range (ra, from, to, to_ssid); } + if (!rc) { + rc = blacklist_range(ra, from_ssid, to_ssid, from, to, + msgtrigger); + if (rc) + totalrc = 1; + } else + totalrc = 1; } - return 1; + + return totalrc; } -/* Parsing the commandline for blacklist parameters, e.g. to blacklist - * bus ids 0.0.1234, 0.0.1235 and 0.0.1236, you could use any of: - * - cio_ignore=1234-1236 - * - cio_ignore=0x1234-0x1235,1236 - * - cio_ignore=0x1234,1235-1236 - * - cio_ignore=1236 cio_ignore=1234-0x1236 - * - cio_ignore=1234 cio_ignore=1236 cio_ignore=0x1235 - * - cio_ignore=0.0.1234-0.0.1236 - * - cio_ignore=0.0.1234,0x1235,1236 - * - ... - */ static int __init blacklist_setup (char *str) { - return blacklist_parse_parameters (str, add); + CIO_MSG_EVENT(6, "Reading blacklist parameters\n"); + if (blacklist_parse_parameters(str, add, 1)) + return 0; + return 1; } __setup ("cio_ignore=", blacklist_setup); @@ -223,27 +230,23 @@ is_blacklisted (int ssid, int devno) * Function: blacklist_parse_proc_parameters * parse the stuff which is piped to /proc/cio_ignore */ -static void -blacklist_parse_proc_parameters (char *buf) +static int blacklist_parse_proc_parameters(char *buf) { - if (strncmp (buf, "free ", 5) == 0) { - blacklist_parse_parameters (buf + 5, free); - } else if (strncmp (buf, "add ", 4) == 0) { - /* - * We don't need to check for known devices since - * css_probe_device will handle this correctly. - */ - blacklist_parse_parameters (buf + 4, add); - } else { - printk (KERN_WARNING "cio: cio_ignore: Parse error; \n" - KERN_WARNING "try using 'free all|," - ",...'\n" - KERN_WARNING "or 'add ," - ",...'\n"); - return; - } + int rc; + char *parm; + + parm = strsep(&buf, " "); + + if (strcmp("free", parm) == 0) + rc = blacklist_parse_parameters(buf, free, 0); + else if (strcmp("add", parm) == 0) + rc = blacklist_parse_parameters(buf, add, 0); + else + return 1; css_schedule_reprobe(); + + return rc; } /* Iterator struct for all devices. */ @@ -327,6 +330,8 @@ cio_ignore_write(struct file *file, const char __user *user_buf, size_t user_len, loff_t *offset) { char *buf; + size_t i; + ssize_t rc, ret; if (*offset) return -EINVAL; @@ -335,16 +340,27 @@ cio_ignore_write(struct file *file, const char __user *user_buf, buf = vmalloc (user_len + 1); /* maybe better use the stack? */ if (buf == NULL) return -ENOMEM; + memset(buf, 0, user_len + 1); + if (strncpy_from_user (buf, user_buf, user_len) < 0) { - vfree (buf); - return -EFAULT; + rc = -EFAULT; + goto out_free; } - buf[user_len] = '\0'; - blacklist_parse_proc_parameters (buf); + i = user_len - 1; + while ((i >= 0) && (isspace(buf[i]) || (buf[i] == 0))) { + buf[i] = '\0'; + i--; + } + ret = blacklist_parse_proc_parameters(buf); + if (ret) + rc = -EINVAL; + else + rc = user_len; +out_free: vfree (buf); - return user_len; + return rc; } static const struct seq_operations cio_ignore_proc_seq_ops = { -- cgit v1.2.3-70-g09d2 From c6ca1850e78d60c299ceb4c240a04af9e2384f70 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 7 May 2008 09:22:56 +0200 Subject: [S390] s390mach compile warning Fix the following compile warning: drivers/s390/s390mach.c: In function 's390_collect_crw_info': drivers/s390/s390mach.c:77: warning: ignoring return value of 'down_interruptibl Signed-off-by: Martin Schwidefsky --- drivers/s390/s390mach.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/s390/s390mach.c b/drivers/s390/s390mach.c index 4d4b54277c4..5080f343ad7 100644 --- a/drivers/s390/s390mach.c +++ b/drivers/s390/s390mach.c @@ -48,10 +48,11 @@ s390_collect_crw_info(void *param) int ccode; struct semaphore *sem; unsigned int chain; + int ignore; sem = (struct semaphore *)param; repeat: - down_interruptible(sem); + ignore = down_interruptible(sem); chain = 0; while (1) { if (unlikely(chain > 1)) { -- cgit v1.2.3-70-g09d2 From 74c76c84576eb2d806f40f6cb2fc8302c01869d8 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 7 May 2008 09:22:58 +0200 Subject: [S390] tty3270: fix put_char fail/success conversion. The wrong function got coverted ;) CC drivers/s390/char/tty3270.o drivers/s390/char/tty3270.c:1747: warning: initialization from incompatible pointer type Acked-by: Alan Cox Cc: Peter Oberparleiter Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- drivers/s390/char/tty3270.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c index c1f2adefad4..5043150019a 100644 --- a/drivers/s390/char/tty3270.c +++ b/drivers/s390/char/tty3270.c @@ -965,8 +965,7 @@ tty3270_write_room(struct tty_struct *tty) * Insert character into the screen at the current position with the * current color and highlight. This function does NOT do cursor movement. */ -static int -tty3270_put_character(struct tty3270 *tp, char ch) +static void tty3270_put_character(struct tty3270 *tp, char ch) { struct tty3270_line *line; struct tty3270_cell *cell; @@ -986,7 +985,6 @@ tty3270_put_character(struct tty3270 *tp, char ch) cell->character = tp->view.ascebc[(unsigned int) ch]; cell->highlight = tp->highlight; cell->f_color = tp->f_color; - return 1; } /* @@ -1612,16 +1610,15 @@ tty3270_write(struct tty_struct * tty, /* * Put single characters to the ttys character buffer */ -static void -tty3270_put_char(struct tty_struct *tty, unsigned char ch) +static int tty3270_put_char(struct tty_struct *tty, unsigned char ch) { struct tty3270 *tp; tp = tty->driver_data; - if (!tp) - return; - if (tp->char_count < TTY3270_CHAR_BUF_SIZE) - tp->char_buf[tp->char_count++] = ch; + if (!tp || tp->char_count >= TTY3270_CHAR_BUF_SIZE) + return 0; + tp->char_buf[tp->char_count++] = ch; + return 1; } /* -- cgit v1.2.3-70-g09d2 From 28f13702f03e527fcb979747a882cf366c489c50 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 7 May 2008 10:15:46 +0200 Subject: block: avoid duplicate calls to get_part() in disk stat code get_part() is fairly expensive, as it O(N) loops over partitions to find the right one. In lots of normal IO paths we end up looking up the partition twice, to make matters even worse. Change the stat add code to accept a passed in partition instead. Signed-off-by: Jens Axboe --- block/blk-core.c | 18 ++++++++++-------- drivers/block/aoe/aoecmd.c | 10 ++++++---- include/linux/genhd.h | 35 ++++++++++++++++++----------------- 3 files changed, 34 insertions(+), 29 deletions(-) (limited to 'drivers') diff --git a/block/blk-core.c b/block/blk-core.c index 1b7dddf94f4..2987fe47b5e 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -54,15 +54,16 @@ static DEFINE_PER_CPU(struct list_head, blk_cpu_done); static void drive_stat_acct(struct request *rq, int new_io) { + struct hd_struct *part; int rw = rq_data_dir(rq); if (!blk_fs_request(rq) || !rq->rq_disk) return; - if (!new_io) { - __all_stat_inc(rq->rq_disk, merges[rw], rq->sector); - } else { - struct hd_struct *part = get_part(rq->rq_disk, rq->sector); + part = get_part(rq->rq_disk, rq->sector); + if (!new_io) + __all_stat_inc(rq->rq_disk, part, merges[rw], rq->sector); + else { disk_round_stats(rq->rq_disk); rq->rq_disk->in_flight++; if (part) { @@ -1538,10 +1539,11 @@ static int __end_that_request_first(struct request *req, int error, } if (blk_fs_request(req) && req->rq_disk) { + struct hd_struct *part = get_part(req->rq_disk, req->sector); const int rw = rq_data_dir(req); - all_stat_add(req->rq_disk, sectors[rw], - nr_bytes >> 9, req->sector); + all_stat_add(req->rq_disk, part, sectors[rw], + nr_bytes >> 9, req->sector); } total_bytes = bio_nbytes = 0; @@ -1727,8 +1729,8 @@ static void end_that_request_last(struct request *req, int error) const int rw = rq_data_dir(req); struct hd_struct *part = get_part(disk, req->sector); - __all_stat_inc(disk, ios[rw], req->sector); - __all_stat_add(disk, ticks[rw], duration, req->sector); + __all_stat_inc(disk, part, ios[rw], req->sector); + __all_stat_add(disk, part, ticks[rw], duration, req->sector); disk_round_stats(disk); disk->in_flight--; if (part) { diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c index 8fc429cf82b..41f818be2f7 100644 --- a/drivers/block/aoe/aoecmd.c +++ b/drivers/block/aoe/aoecmd.c @@ -755,11 +755,13 @@ diskstats(struct gendisk *disk, struct bio *bio, ulong duration, sector_t sector { unsigned long n_sect = bio->bi_size >> 9; const int rw = bio_data_dir(bio); + struct hd_struct *part; - all_stat_inc(disk, ios[rw], sector); - all_stat_add(disk, ticks[rw], duration, sector); - all_stat_add(disk, sectors[rw], n_sect, sector); - all_stat_add(disk, io_ticks, duration, sector); + part = get_part(disk, sector); + all_stat_inc(disk, part, ios[rw], sector); + all_stat_add(disk, part, ticks[rw], duration, sector); + all_stat_add(disk, part, sectors[rw], n_sect, sector); + all_stat_add(disk, part, io_ticks, duration, sector); } void diff --git a/include/linux/genhd.h b/include/linux/genhd.h index ecd2bf63fc8..e9874e7fcdf 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -178,17 +178,17 @@ static inline struct hd_struct *get_part(struct gendisk *gendiskp, static inline void disk_stat_set_all(struct gendisk *gendiskp, int value) { int i; + for_each_possible_cpu(i) memset(per_cpu_ptr(gendiskp->dkstats, i), value, - sizeof (struct disk_stats)); + sizeof(struct disk_stats)); } #define __part_stat_add(part, field, addnd) \ (per_cpu_ptr(part->dkstats, smp_processor_id())->field += addnd) -#define __all_stat_add(gendiskp, field, addnd, sector) \ +#define __all_stat_add(gendiskp, part, field, addnd, sector) \ ({ \ - struct hd_struct *part = get_part(gendiskp, sector); \ if (part) \ __part_stat_add(part, field, addnd); \ __disk_stat_add(gendiskp, field, addnd); \ @@ -203,11 +203,13 @@ static inline void disk_stat_set_all(struct gendisk *gendiskp, int value) { res; \ }) -static inline void part_stat_set_all(struct hd_struct *part, int value) { +static inline void part_stat_set_all(struct hd_struct *part, int value) +{ int i; + for_each_possible_cpu(i) memset(per_cpu_ptr(part->dkstats, i), value, - sizeof(struct disk_stats)); + sizeof(struct disk_stats)); } #else /* !CONFIG_SMP */ @@ -223,9 +225,8 @@ static inline void disk_stat_set_all(struct gendisk *gendiskp, int value) #define __part_stat_add(part, field, addnd) \ (part->dkstats.field += addnd) -#define __all_stat_add(gendiskp, field, addnd, sector) \ +#define __all_stat_add(gendiskp, part, field, addnd, sector) \ ({ \ - struct hd_struct *part = get_part(gendiskp, sector); \ if (part) \ part->dkstats.field += addnd; \ __disk_stat_add(gendiskp, field, addnd); \ @@ -276,10 +277,10 @@ static inline void part_stat_set_all(struct hd_struct *part, int value) #define part_stat_sub(gendiskp, field, subnd) \ part_stat_add(gendiskp, field, -subnd) -#define all_stat_add(gendiskp, field, addnd, sector) \ +#define all_stat_add(gendiskp, part, field, addnd, sector) \ do { \ preempt_disable(); \ - __all_stat_add(gendiskp, field, addnd, sector); \ + __all_stat_add(gendiskp, part, field, addnd, sector); \ preempt_enable(); \ } while (0) @@ -288,15 +289,15 @@ static inline void part_stat_set_all(struct hd_struct *part, int value) #define all_stat_dec(gendiskp, field, sector) \ all_stat_add(gendiskp, field, -1, sector) -#define __all_stat_inc(gendiskp, field, sector) \ - __all_stat_add(gendiskp, field, 1, sector) -#define all_stat_inc(gendiskp, field, sector) \ - all_stat_add(gendiskp, field, 1, sector) +#define __all_stat_inc(gendiskp, part, field, sector) \ + __all_stat_add(gendiskp, part, field, 1, sector) +#define all_stat_inc(gendiskp, part, field, sector) \ + all_stat_add(gendiskp, part, field, 1, sector) -#define __all_stat_sub(gendiskp, field, subnd, sector) \ - __all_stat_add(gendiskp, field, -subnd, sector) -#define all_stat_sub(gendiskp, field, subnd, sector) \ - all_stat_add(gendiskp, field, -subnd, sector) +#define __all_stat_sub(gendiskp, part, field, subnd, sector) \ + __all_stat_add(gendiskp, part, field, -subnd, sector) +#define all_stat_sub(gendiskp, part, field, subnd, sector) \ + all_stat_add(gendiskp, part, field, -subnd, sector) /* Inlines to alloc and free disk stats in struct gendisk */ #ifdef CONFIG_SMP -- cgit v1.2.3-70-g09d2 From e5e1d3cb20034a3cbcfff1f0bae12201aa2ce17e Mon Sep 17 00:00:00 2001 From: Stas Sergeev Date: Wed, 7 May 2008 12:39:56 +0200 Subject: pcspkr: fix dependancies fix pcspkr dependancies: make the pcspkr platform drivers to depend on a platform device, and not the other way around. Signed-off-by: Stas Sergeev Acked-by: Thomas Gleixner Acked-by: Dmitry Torokhov CC: Vojtech Pavlik CC: Michael Opdenacker [fixed for 2.6.26-rc1 by tiwai] Signed-off-by: Takashi Iwai --- arch/x86/kernel/Makefile | 4 +--- drivers/input/misc/Kconfig | 2 +- init/Kconfig | 8 ++++++++ sound/drivers/Kconfig | 4 ++-- 4 files changed, 12 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index bbdacb398d4..5e618c3b472 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -83,9 +83,7 @@ obj-$(CONFIG_KVM_GUEST) += kvm.o obj-$(CONFIG_KVM_CLOCK) += kvmclock.o obj-$(CONFIG_PARAVIRT) += paravirt.o paravirt_patch_$(BITS).o -ifdef CONFIG_INPUT_PCSPKR -obj-y += pcspeaker.o -endif +obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o obj-$(CONFIG_SCx200) += scx200.o scx200-y += scx200_32.o diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 92b683411d5..3ad8bd9f754 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -14,7 +14,7 @@ if INPUT_MISC config INPUT_PCSPKR tristate "PC Speaker support" - depends on ALPHA || X86 || MIPS || PPC_PREP || PPC_CHRP || PPC_PSERIES + depends on PCSPKR_PLATFORM depends on SND_PCSP=n help Say Y here if you want the standard PC Speaker to be used for diff --git a/init/Kconfig b/init/Kconfig index 4c33316743f..3b5adbf228c 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -634,6 +634,14 @@ config ELF_CORE help Enable support for generating core dumps. Disabling saves about 4k. +config PCSPKR_PLATFORM + bool "Enable PC-Speaker support" if EMBEDDED + depends on ALPHA || X86 || MIPS || PPC_PREP || PPC_CHRP || PPC_PSERIES + default y + help + This option allows to disable the internal PC-Speaker + support, saving some memory. + config COMPAT_BRK bool "Disable heap randomization" default y diff --git a/sound/drivers/Kconfig b/sound/drivers/Kconfig index a78a8d04517..379bcb07446 100644 --- a/sound/drivers/Kconfig +++ b/sound/drivers/Kconfig @@ -5,8 +5,8 @@ menu "Generic devices" config SND_PCSP - tristate "Internal PC speaker support" - depends on X86_PC && HIGH_RES_TIMERS + tristate "PC-Speaker support" + depends on PCSPKR_PLATFORM && X86_PC && HIGH_RES_TIMERS depends on INPUT depends on SND select SND_PCM -- cgit v1.2.3-70-g09d2 From 5f51efc195dfb860c60fafb4e47fe4b7cad2626d Mon Sep 17 00:00:00 2001 From: Michael Albaugh Date: Wed, 7 May 2008 10:56:47 -0700 Subject: IB/ipath: Only warn about prototype chip during init We warn about prototype chips, but the function that checks for support is also called as a result of a get_portinfo request, which can clutter the logs. Restrict warning to only appear during initialization. Signed-off-by: Michael Albaugh Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_iba7220.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_iba7220.c b/drivers/infiniband/hw/ipath/ipath_iba7220.c index e3ec0d1bdf5..5f693de6654 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba7220.c +++ b/drivers/infiniband/hw/ipath/ipath_iba7220.c @@ -870,8 +870,9 @@ static int ipath_7220_boardname(struct ipath_devdata *dd, char *name, "revision %u.%u!\n", dd->ipath_majrev, dd->ipath_minrev); ret = 1; - } else if (dd->ipath_minrev == 1) { - /* Rev1 chips are prototype. Complain, but allow use */ + } else if (dd->ipath_minrev == 1 && + !(dd->ipath_flags & IPATH_INITTED)) { + /* Rev1 chips are prototype. Complain at init, but allow use */ ipath_dev_err(dd, "Unsupported hardware " "revision %u.%u, Contact support@qlogic.com\n", dd->ipath_majrev, dd->ipath_minrev); -- cgit v1.2.3-70-g09d2 From 6e87d1500713767866db0668bbcec75719576f3c Mon Sep 17 00:00:00 2001 From: Ralph Campbell Date: Wed, 7 May 2008 10:57:14 -0700 Subject: IB/ipath: Only increment SSN if WQE is put on send queue If a send work request has immediate errors and is not put on the send queue, we shouldn't update any of the QP state. The increment of the SSN wasn't obeying this. Signed-off-by: Ralph Campbell Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_verbs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index e63927cce5b..5015cd2e57b 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -396,7 +396,6 @@ static int ipath_post_one_send(struct ipath_qp *qp, struct ib_send_wr *wr) wqe = get_swqe_ptr(qp, qp->s_head); wqe->wr = *wr; - wqe->ssn = qp->s_ssn++; wqe->length = 0; if (wr->num_sge) { acc = wr->opcode >= IB_WR_RDMA_READ ? @@ -422,6 +421,7 @@ static int ipath_post_one_send(struct ipath_qp *qp, struct ib_send_wr *wr) goto bail_inval; } else if (wqe->length > to_idev(qp->ibqp.device)->dd->ipath_ibmtu) goto bail_inval; + wqe->ssn = qp->s_ssn++; qp->s_head = next; ret = 0; -- cgit v1.2.3-70-g09d2 From b4d390d8d219452e5d4257c87134a6934d7fabeb Mon Sep 17 00:00:00 2001 From: Dave Olson Date: Wed, 7 May 2008 10:57:48 -0700 Subject: IB/ipath: Fix bug that can leave sends disabled after freeze recovery The semantics of cancel_sends changed, but the code using it was missed. Don't leave sends and pioavail updates disabled, and add a comment as to why the force update is needed. Signed-off-by: Dave Olson Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_intr.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c index 1b58f4737c7..45c4c068ab1 100644 --- a/drivers/infiniband/hw/ipath/ipath_intr.c +++ b/drivers/infiniband/hw/ipath/ipath_intr.c @@ -933,11 +933,15 @@ void ipath_clear_freeze(struct ipath_devdata *dd) * therefore would not be sent, and eventually * might cause the process to run out of bufs */ - ipath_cancel_sends(dd, 0); + ipath_cancel_sends(dd, 1); ipath_write_kreg(dd, dd->ipath_kregs->kr_control, dd->ipath_control); - /* ensure pio avail updates continue */ + /* + * ensure pio avail updates continue (because the update + * won't have happened from cancel_sends because we were + * still in freeze + */ ipath_force_pio_avail_update(dd); /* -- cgit v1.2.3-70-g09d2 From 2bfc8e9edf200aeeca18ee44bcbf6bce65438a42 Mon Sep 17 00:00:00 2001 From: Ralph Campbell Date: Wed, 7 May 2008 10:58:50 -0700 Subject: IB/ipath: Return the correct opcode for RDMA WRITE with immediate This patch fixes a bug in the RC responder which generates a completion entry with the wrong opcode when an RDMA WRITE with immediate is received. Signed-off-by: Ralph Campbell Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_rc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c index c405dfba553..08b11b56761 100644 --- a/drivers/infiniband/hw/ipath/ipath_rc.c +++ b/drivers/infiniband/hw/ipath/ipath_rc.c @@ -1746,7 +1746,11 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, qp->r_wrid_valid = 0; wc.wr_id = qp->r_wr_id; wc.status = IB_WC_SUCCESS; - wc.opcode = IB_WC_RECV; + if (opcode == OP(RDMA_WRITE_LAST_WITH_IMMEDIATE) || + opcode == OP(RDMA_WRITE_ONLY_WITH_IMMEDIATE)) + wc.opcode = IB_WC_RECV_RDMA_WITH_IMM; + else + wc.opcode = IB_WC_RECV; wc.vendor_err = 0; wc.qp = &qp->ibqp; wc.src_qp = qp->remote_qpn; -- cgit v1.2.3-70-g09d2 From 2889d1ef1240591fa4c72a6753e0a8d1c6e18140 Mon Sep 17 00:00:00 2001 From: Michael Albaugh Date: Wed, 7 May 2008 10:59:23 -0700 Subject: IB/ipath: Fix count of packets received by kernel The loop in ipath_kreceive() that processes packets increments the loop-index 'i' once too often, because the exit condition does not depend on it, and is checked after the increment. By adding a check for !last to the iterator in the for loop, we correct that in a way that is not so likely to be re-broken by changes in the loop body. Signed-off-by: Michael Albaugh Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_driver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index acf30c06a0c..f81dd4acdc6 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -1197,7 +1197,7 @@ void ipath_kreceive(struct ipath_portdata *pd) } reloop: - for (last = 0, i = 1; !last; i++) { + for (last = 0, i = 1; !last; i += !last) { hdr = dd->ipath_f_get_msgheader(dd, rhf_addr); eflags = ipath_hdrget_err_flags(rhf_addr); etype = ipath_hdrget_rcv_type(rhf_addr); -- cgit v1.2.3-70-g09d2 From e2ab41cae418108f376ad1634d7507f56379f7a2 Mon Sep 17 00:00:00 2001 From: Dave Olson Date: Wed, 7 May 2008 11:00:15 -0700 Subject: IB/ipath: Need to always request and handle PIO avail interrupts Now that we always use PIO for vl15 on 7220, we could get stuck forever if we happened to run out of PIO buffers from the verbs code, because the setup code wouldn't run; the interrupt was also ignored if SDMA was supported. We also have to reduce the pio update threshold if we have fewer kernel buffers than the existing threshold. Clean up the initialization a bit to get ordering safer and more sensible, and use the existing ipath_chg_kernavail call to do init, rather than doing it separately. Drop unnecessary clearing of pio buffer on pio parity error. Drop incorrect updating of pioavailshadow when exitting freeze mode (software state may not match chip state if buffer has been allocated and not yet written). If we couldn't get a kernel buffer for a while, make sure we are in sync with hardware, mainly to handle the exitting freeze case. Signed-off-by: Dave Olson Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_driver.c | 128 +++++++++++++++++++++++--- drivers/infiniband/hw/ipath/ipath_file_ops.c | 72 ++++++--------- drivers/infiniband/hw/ipath/ipath_iba7220.c | 21 ++--- drivers/infiniband/hw/ipath/ipath_init_chip.c | 95 +++++++++---------- drivers/infiniband/hw/ipath/ipath_intr.c | 82 +++-------------- drivers/infiniband/hw/ipath/ipath_kernel.h | 8 +- drivers/infiniband/hw/ipath/ipath_ruc.c | 7 +- drivers/infiniband/hw/ipath/ipath_sdma.c | 13 ++- 8 files changed, 224 insertions(+), 202 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index f81dd4acdc6..2036d38fac4 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -1428,6 +1428,40 @@ static void ipath_update_pio_bufs(struct ipath_devdata *dd) spin_unlock_irqrestore(&ipath_pioavail_lock, flags); } +/* + * used to force update of pioavailshadow if we can't get a pio buffer. + * Needed primarily due to exitting freeze mode after recovering + * from errors. Done lazily, because it's safer (known to not + * be writing pio buffers). + */ +static void ipath_reset_availshadow(struct ipath_devdata *dd) +{ + int i, im; + unsigned long flags; + + spin_lock_irqsave(&ipath_pioavail_lock, flags); + for (i = 0; i < dd->ipath_pioavregs; i++) { + u64 val, oldval; + /* deal with 6110 chip bug on high register #s */ + im = (i > 3 && (dd->ipath_flags & IPATH_SWAP_PIOBUFS)) ? + i ^ 1 : i; + val = le64_to_cpu(dd->ipath_pioavailregs_dma[im]); + /* + * busy out the buffers not in the kernel avail list, + * without changing the generation bits. + */ + oldval = dd->ipath_pioavailshadow[i]; + dd->ipath_pioavailshadow[i] = val | + ((~dd->ipath_pioavailkernel[i] << + INFINIPATH_SENDPIOAVAIL_BUSY_SHIFT) & + 0xaaaaaaaaaaaaaaaaULL); /* All BUSY bits in qword */ + if (oldval != dd->ipath_pioavailshadow[i]) + ipath_dbg("shadow[%d] was %Lx, now %lx\n", + i, oldval, dd->ipath_pioavailshadow[i]); + } + spin_unlock_irqrestore(&ipath_pioavail_lock, flags); +} + /** * ipath_setrcvhdrsize - set the receive header size * @dd: the infinipath device @@ -1482,9 +1516,12 @@ static noinline void no_pio_bufs(struct ipath_devdata *dd) */ ipath_stats.sps_nopiobufs++; if (!(++dd->ipath_consec_nopiobuf % 100000)) { - ipath_dbg("%u pio sends with no bufavail; dmacopy: " - "%llx %llx %llx %llx; shadow: %lx %lx %lx %lx\n", + ipath_force_pio_avail_update(dd); /* at start */ + ipath_dbg("%u tries no piobufavail ts%lx; dmacopy: " + "%llx %llx %llx %llx\n" + "ipath shadow: %lx %lx %lx %lx\n", dd->ipath_consec_nopiobuf, + (unsigned long)get_cycles(), (unsigned long long) le64_to_cpu(dma[0]), (unsigned long long) le64_to_cpu(dma[1]), (unsigned long long) le64_to_cpu(dma[2]), @@ -1496,14 +1533,17 @@ static noinline void no_pio_bufs(struct ipath_devdata *dd) */ if ((dd->ipath_piobcnt2k + dd->ipath_piobcnt4k) > (sizeof(shadow[0]) * 4 * 4)) - ipath_dbg("2nd group: dmacopy: %llx %llx " - "%llx %llx; shadow: %lx %lx %lx %lx\n", + ipath_dbg("2nd group: dmacopy: " + "%llx %llx %llx %llx\n" + "ipath shadow: %lx %lx %lx %lx\n", (unsigned long long)le64_to_cpu(dma[4]), (unsigned long long)le64_to_cpu(dma[5]), (unsigned long long)le64_to_cpu(dma[6]), (unsigned long long)le64_to_cpu(dma[7]), - shadow[4], shadow[5], shadow[6], - shadow[7]); + shadow[4], shadow[5], shadow[6], shadow[7]); + + /* at end, so update likely happened */ + ipath_reset_availshadow(dd); } } @@ -1652,19 +1692,46 @@ void ipath_chg_pioavailkernel(struct ipath_devdata *dd, unsigned start, unsigned len, int avail) { unsigned long flags; - unsigned end; + unsigned end, cnt = 0, next; /* There are two bits per send buffer (busy and generation) */ start *= 2; - len *= 2; - end = start + len; + end = start + len * 2; - /* Set or clear the generation bits. */ spin_lock_irqsave(&ipath_pioavail_lock, flags); + /* Set or clear the busy bit in the shadow. */ while (start < end) { if (avail) { - __clear_bit(start + INFINIPATH_SENDPIOAVAIL_BUSY_SHIFT, - dd->ipath_pioavailshadow); + unsigned long dma; + int i, im; + /* + * the BUSY bit will never be set, because we disarm + * the user buffers before we hand them back to the + * kernel. We do have to make sure the generation + * bit is set correctly in shadow, since it could + * have changed many times while allocated to user. + * We can't use the bitmap functions on the full + * dma array because it is always little-endian, so + * we have to flip to host-order first. + * BITS_PER_LONG is slightly wrong, since it's + * always 64 bits per register in chip... + * We only work on 64 bit kernels, so that's OK. + */ + /* deal with 6110 chip bug on high register #s */ + i = start / BITS_PER_LONG; + im = (i > 3 && (dd->ipath_flags & IPATH_SWAP_PIOBUFS)) ? + i ^ 1 : i; + __clear_bit(INFINIPATH_SENDPIOAVAIL_BUSY_SHIFT + + start, dd->ipath_pioavailshadow); + dma = (unsigned long) le64_to_cpu( + dd->ipath_pioavailregs_dma[im]); + if (test_bit((INFINIPATH_SENDPIOAVAIL_CHECK_SHIFT + + start) % BITS_PER_LONG, &dma)) + __set_bit(INFINIPATH_SENDPIOAVAIL_CHECK_SHIFT + + start, dd->ipath_pioavailshadow); + else + __clear_bit(INFINIPATH_SENDPIOAVAIL_CHECK_SHIFT + + start, dd->ipath_pioavailshadow); __set_bit(start, dd->ipath_pioavailkernel); } else { __set_bit(start + INFINIPATH_SENDPIOAVAIL_BUSY_SHIFT, @@ -1673,7 +1740,44 @@ void ipath_chg_pioavailkernel(struct ipath_devdata *dd, unsigned start, } start += 2; } + + if (dd->ipath_pioupd_thresh) { + end = 2 * (dd->ipath_piobcnt2k + dd->ipath_piobcnt4k); + next = find_first_bit(dd->ipath_pioavailkernel, end); + while (next < end) { + cnt++; + next = find_next_bit(dd->ipath_pioavailkernel, end, + next + 1); + } + } spin_unlock_irqrestore(&ipath_pioavail_lock, flags); + + /* + * When moving buffers from kernel to user, if number assigned to + * the user is less than the pio update threshold, and threshold + * is supported (cnt was computed > 0), drop the update threshold + * so we update at least once per allocated number of buffers. + * In any case, if the kernel buffers are less than the threshold, + * drop the threshold. We don't bother increasing it, having once + * decreased it, since it would typically just cycle back and forth. + * If we don't decrease below buffers in use, we can wait a long + * time for an update, until some other context uses PIO buffers. + */ + if (!avail && len < cnt) + cnt = len; + if (cnt < dd->ipath_pioupd_thresh) { + dd->ipath_pioupd_thresh = cnt; + ipath_dbg("Decreased pio update threshold to %u\n", + dd->ipath_pioupd_thresh); + spin_lock_irqsave(&dd->ipath_sendctrl_lock, flags); + dd->ipath_sendctrl &= ~(INFINIPATH_S_UPDTHRESH_MASK + << INFINIPATH_S_UPDTHRESH_SHIFT); + dd->ipath_sendctrl |= dd->ipath_pioupd_thresh + << INFINIPATH_S_UPDTHRESH_SHIFT; + ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, + dd->ipath_sendctrl); + spin_unlock_irqrestore(&dd->ipath_sendctrl_lock, flags); + } } /** diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index 8b1752202e7..3295177c937 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -173,47 +173,25 @@ static int ipath_get_base_info(struct file *fp, (void *) dd->ipath_statusp - (void *) dd->ipath_pioavailregs_dma; if (!shared) { - kinfo->spi_piocnt = dd->ipath_pbufsport; + kinfo->spi_piocnt = pd->port_piocnt; kinfo->spi_piobufbase = (u64) pd->port_piobufs; kinfo->__spi_uregbase = (u64) dd->ipath_uregbase + dd->ipath_ureg_align * pd->port_port; } else if (master) { - kinfo->spi_piocnt = (dd->ipath_pbufsport / subport_cnt) + - (dd->ipath_pbufsport % subport_cnt); + kinfo->spi_piocnt = (pd->port_piocnt / subport_cnt) + + (pd->port_piocnt % subport_cnt); /* Master's PIO buffers are after all the slave's */ kinfo->spi_piobufbase = (u64) pd->port_piobufs + dd->ipath_palign * - (dd->ipath_pbufsport - kinfo->spi_piocnt); + (pd->port_piocnt - kinfo->spi_piocnt); } else { unsigned slave = subport_fp(fp) - 1; - kinfo->spi_piocnt = dd->ipath_pbufsport / subport_cnt; + kinfo->spi_piocnt = pd->port_piocnt / subport_cnt; kinfo->spi_piobufbase = (u64) pd->port_piobufs + dd->ipath_palign * kinfo->spi_piocnt * slave; } - /* - * Set the PIO avail update threshold to no larger - * than the number of buffers per process. Note that - * we decrease it here, but won't ever increase it. - */ - if (dd->ipath_pioupd_thresh && - kinfo->spi_piocnt < dd->ipath_pioupd_thresh) { - unsigned long flags; - - dd->ipath_pioupd_thresh = kinfo->spi_piocnt; - ipath_dbg("Decreased pio update threshold to %u\n", - dd->ipath_pioupd_thresh); - spin_lock_irqsave(&dd->ipath_sendctrl_lock, flags); - dd->ipath_sendctrl &= ~(INFINIPATH_S_UPDTHRESH_MASK - << INFINIPATH_S_UPDTHRESH_SHIFT); - dd->ipath_sendctrl |= dd->ipath_pioupd_thresh - << INFINIPATH_S_UPDTHRESH_SHIFT; - ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, - dd->ipath_sendctrl); - spin_unlock_irqrestore(&dd->ipath_sendctrl_lock, flags); - } - if (shared) { kinfo->spi_port_uregbase = (u64) dd->ipath_uregbase + dd->ipath_ureg_align * pd->port_port; @@ -1309,19 +1287,19 @@ static int ipath_mmap(struct file *fp, struct vm_area_struct *vma) ureg = dd->ipath_uregbase + dd->ipath_ureg_align * pd->port_port; if (!pd->port_subport_cnt) { /* port is not shared */ - piocnt = dd->ipath_pbufsport; + piocnt = pd->port_piocnt; piobufs = pd->port_piobufs; } else if (!subport_fp(fp)) { /* caller is the master */ - piocnt = (dd->ipath_pbufsport / pd->port_subport_cnt) + - (dd->ipath_pbufsport % pd->port_subport_cnt); + piocnt = (pd->port_piocnt / pd->port_subport_cnt) + + (pd->port_piocnt % pd->port_subport_cnt); piobufs = pd->port_piobufs + - dd->ipath_palign * (dd->ipath_pbufsport - piocnt); + dd->ipath_palign * (pd->port_piocnt - piocnt); } else { unsigned slave = subport_fp(fp) - 1; /* caller is a slave */ - piocnt = dd->ipath_pbufsport / pd->port_subport_cnt; + piocnt = pd->port_piocnt / pd->port_subport_cnt; piobufs = pd->port_piobufs + dd->ipath_palign * piocnt * slave; } @@ -1633,9 +1611,6 @@ static int try_alloc_port(struct ipath_devdata *dd, int port, port_fp(fp) = pd; pd->port_pid = current->pid; strncpy(pd->port_comm, current->comm, sizeof(pd->port_comm)); - ipath_chg_pioavailkernel(dd, - dd->ipath_pbufsport * (pd->port_port - 1), - dd->ipath_pbufsport, 0); ipath_stats.sps_ports++; ret = 0; } else @@ -1938,11 +1913,25 @@ static int ipath_do_user_init(struct file *fp, /* for now we do nothing with rcvhdrcnt: uinfo->spu_rcvhdrcnt */ + /* some ports may get extra buffers, calculate that here */ + if (pd->port_port <= dd->ipath_ports_extrabuf) + pd->port_piocnt = dd->ipath_pbufsport + 1; + else + pd->port_piocnt = dd->ipath_pbufsport; + /* for right now, kernel piobufs are at end, so port 1 is at 0 */ + if (pd->port_port <= dd->ipath_ports_extrabuf) + pd->port_pio_base = (dd->ipath_pbufsport + 1) + * (pd->port_port - 1); + else + pd->port_pio_base = dd->ipath_ports_extrabuf + + dd->ipath_pbufsport * (pd->port_port - 1); pd->port_piobufs = dd->ipath_piobufbase + - dd->ipath_pbufsport * (pd->port_port - 1) * dd->ipath_palign; - ipath_cdbg(VERBOSE, "Set base of piobufs for port %u to 0x%x\n", - pd->port_port, pd->port_piobufs); + pd->port_pio_base * dd->ipath_palign; + ipath_cdbg(VERBOSE, "piobuf base for port %u is 0x%x, piocnt %u," + " first pio %u\n", pd->port_port, pd->port_piobufs, + pd->port_piocnt, pd->port_pio_base); + ipath_chg_pioavailkernel(dd, pd->port_pio_base, pd->port_piocnt, 0); /* * Now allocate the rcvhdr Q and eager TIDs; skip the TID @@ -2107,7 +2096,6 @@ static int ipath_close(struct inode *in, struct file *fp) } if (dd->ipath_kregbase) { - int i; /* atomically clear receive enable port and intr avail. */ clear_bit(dd->ipath_r_portenable_shift + port, &dd->ipath_rcvctrl); @@ -2136,9 +2124,9 @@ static int ipath_close(struct inode *in, struct file *fp) ipath_write_kreg_port(dd, dd->ipath_kregs->kr_rcvhdraddr, pd->port_port, dd->ipath_dummy_hdrq_phys); - i = dd->ipath_pbufsport * (port - 1); - ipath_disarm_piobufs(dd, i, dd->ipath_pbufsport); - ipath_chg_pioavailkernel(dd, i, dd->ipath_pbufsport, 1); + ipath_disarm_piobufs(dd, pd->port_pio_base, pd->port_piocnt); + ipath_chg_pioavailkernel(dd, pd->port_pio_base, + pd->port_piocnt, 1); dd->ipath_f_clear_tids(dd, pd->port_port); diff --git a/drivers/infiniband/hw/ipath/ipath_iba7220.c b/drivers/infiniband/hw/ipath/ipath_iba7220.c index 5f693de6654..8eee7830f04 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba7220.c +++ b/drivers/infiniband/hw/ipath/ipath_iba7220.c @@ -595,7 +595,7 @@ static void ipath_7220_txe_recover(struct ipath_devdata *dd) dev_info(&dd->pcidev->dev, "Recovering from TXE PIO parity error\n"); - ipath_disarm_senderrbufs(dd, 1); + ipath_disarm_senderrbufs(dd); } @@ -675,10 +675,8 @@ static void ipath_7220_handle_hwerrors(struct ipath_devdata *dd, char *msg, ctrl = ipath_read_kreg32(dd, dd->ipath_kregs->kr_control); if ((ctrl & INFINIPATH_C_FREEZEMODE) && !ipath_diag_inuse) { /* - * Parity errors in send memory are recoverable, - * just cancel the send (if indicated in * sendbuffererror), - * count the occurrence, unfreeze (if no other handled - * hardware error bits are set), and continue. + * Parity errors in send memory are recoverable by h/w + * just do housekeeping, exit freeze mode and continue. */ if (hwerrs & ((INFINIPATH_HWE_TXEMEMPARITYERR_PIOBUF | INFINIPATH_HWE_TXEMEMPARITYERR_PIOPBC) @@ -687,13 +685,6 @@ static void ipath_7220_handle_hwerrors(struct ipath_devdata *dd, char *msg, hwerrs &= ~((INFINIPATH_HWE_TXEMEMPARITYERR_PIOBUF | INFINIPATH_HWE_TXEMEMPARITYERR_PIOPBC) << INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT); - if (!hwerrs) { - /* else leave in freeze mode */ - ipath_write_kreg(dd, - dd->ipath_kregs->kr_control, - dd->ipath_control); - goto bail; - } } if (hwerrs) { /* @@ -723,8 +714,8 @@ static void ipath_7220_handle_hwerrors(struct ipath_devdata *dd, char *msg, *dd->ipath_statusp |= IPATH_STATUS_HWERROR; dd->ipath_flags &= ~IPATH_INITTED; } else { - ipath_dbg("Clearing freezemode on ignored hardware " - "error\n"); + ipath_dbg("Clearing freezemode on ignored or " + "recovered hardware error\n"); ipath_clear_freeze(dd); } } @@ -1967,7 +1958,7 @@ static void ipath_7220_config_ports(struct ipath_devdata *dd, ushort cfgports) dd->ipath_rcvctrl); dd->ipath_p0_rcvegrcnt = 2048; /* always */ if (dd->ipath_flags & IPATH_HAS_SEND_DMA) - dd->ipath_pioreserved = 1; /* reserve a buffer */ + dd->ipath_pioreserved = 3; /* kpiobufs used for PIO */ } diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c index 27dd8947666..3e5baa43fc8 100644 --- a/drivers/infiniband/hw/ipath/ipath_init_chip.c +++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c @@ -41,7 +41,7 @@ /* * min buffers we want to have per port, after driver */ -#define IPATH_MIN_USER_PORT_BUFCNT 8 +#define IPATH_MIN_USER_PORT_BUFCNT 7 /* * Number of ports we are configured to use (to allow for more pio @@ -54,13 +54,9 @@ MODULE_PARM_DESC(cfgports, "Set max number of ports to use"); /* * Number of buffers reserved for driver (verbs and layered drivers.) - * Reserved at end of buffer list. Initialized based on - * number of PIO buffers if not set via module interface. + * Initialized based on number of PIO buffers if not set via module interface. * The problem with this is that it's global, but we'll use different - * numbers for different chip types. So the default value is not - * very useful. I've redefined it for the 1.3 release so that it's - * zero unless set by the user to something else, in which case we - * try to respect it. + * numbers for different chip types. */ static ushort ipath_kpiobufs; @@ -546,9 +542,12 @@ static void enable_chip(struct ipath_devdata *dd, int reinit) pioavail = dd->ipath_pioavailregs_dma[i ^ 1]; else pioavail = dd->ipath_pioavailregs_dma[i]; - dd->ipath_pioavailshadow[i] = le64_to_cpu(pioavail) | - (~dd->ipath_pioavailkernel[i] << - INFINIPATH_SENDPIOAVAIL_BUSY_SHIFT); + /* + * don't need to worry about ipath_pioavailkernel here + * because we will call ipath_chg_pioavailkernel() later + * in initialization, to busy out buffers as needed + */ + dd->ipath_pioavailshadow[i] = le64_to_cpu(pioavail); } /* can get counters, stats, etc. */ dd->ipath_flags |= IPATH_PRESENT; @@ -708,12 +707,11 @@ static void verify_interrupt(unsigned long opaque) int ipath_init_chip(struct ipath_devdata *dd, int reinit) { int ret = 0; - u32 val32, kpiobufs; + u32 kpiobufs, defkbufs; u32 piobufs, uports; u64 val; struct ipath_portdata *pd; gfp_t gfp_flags = GFP_USER | __GFP_COMP; - unsigned long flags; ret = init_housekeeping(dd, reinit); if (ret) @@ -753,69 +751,52 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) dd->ipath_pioavregs = ALIGN(piobufs, sizeof(u64) * BITS_PER_BYTE / 2) / (sizeof(u64) * BITS_PER_BYTE / 2); uports = dd->ipath_cfgports ? dd->ipath_cfgports - 1 : 0; - if (ipath_kpiobufs == 0) { - /* not set by user (this is default) */ - if (piobufs > 144) - kpiobufs = 32; - else - kpiobufs = 16; - } + if (piobufs > 144) + defkbufs = 32 + dd->ipath_pioreserved; else - kpiobufs = ipath_kpiobufs; + defkbufs = 16 + dd->ipath_pioreserved; - if (kpiobufs + (uports * IPATH_MIN_USER_PORT_BUFCNT) > piobufs) { + if (ipath_kpiobufs && (ipath_kpiobufs + + (uports * IPATH_MIN_USER_PORT_BUFCNT)) > piobufs) { int i = (int) piobufs - (int) (uports * IPATH_MIN_USER_PORT_BUFCNT); if (i < 1) i = 1; dev_info(&dd->pcidev->dev, "Allocating %d PIO bufs of " "%d for kernel leaves too few for %d user ports " - "(%d each); using %u\n", kpiobufs, + "(%d each); using %u\n", ipath_kpiobufs, piobufs, uports, IPATH_MIN_USER_PORT_BUFCNT, i); /* * shouldn't change ipath_kpiobufs, because could be * different for different devices... */ kpiobufs = i; - } + } else if (ipath_kpiobufs) + kpiobufs = ipath_kpiobufs; + else + kpiobufs = defkbufs; dd->ipath_lastport_piobuf = piobufs - kpiobufs; dd->ipath_pbufsport = uports ? dd->ipath_lastport_piobuf / uports : 0; - val32 = dd->ipath_lastport_piobuf - (dd->ipath_pbufsport * uports); - if (val32 > 0) { - ipath_dbg("allocating %u pbufs/port leaves %u unused, " - "add to kernel\n", dd->ipath_pbufsport, val32); - dd->ipath_lastport_piobuf -= val32; - kpiobufs += val32; - ipath_dbg("%u pbufs/port leaves %u unused, add to kernel\n", - dd->ipath_pbufsport, val32); - } + /* if not an even divisor, some user ports get extra buffers */ + dd->ipath_ports_extrabuf = dd->ipath_lastport_piobuf - + (dd->ipath_pbufsport * uports); + if (dd->ipath_ports_extrabuf) + ipath_dbg("%u pbufs/port leaves some unused, add 1 buffer to " + "ports <= %u\n", dd->ipath_pbufsport, + dd->ipath_ports_extrabuf); dd->ipath_lastpioindex = 0; dd->ipath_lastpioindexl = dd->ipath_piobcnt2k; - ipath_chg_pioavailkernel(dd, 0, piobufs, 1); + /* ipath_pioavailshadow initialized earlier */ ipath_cdbg(VERBOSE, "%d PIO bufs for kernel out of %d total %u " "each for %u user ports\n", kpiobufs, piobufs, dd->ipath_pbufsport, uports); - if (dd->ipath_pioupd_thresh) { - if (dd->ipath_pbufsport < dd->ipath_pioupd_thresh) - dd->ipath_pioupd_thresh = dd->ipath_pbufsport; - if (kpiobufs < dd->ipath_pioupd_thresh) - dd->ipath_pioupd_thresh = kpiobufs; - } - ret = dd->ipath_f_early_init(dd); if (ret) { ipath_dev_err(dd, "Early initialization failure\n"); goto done; } - /* - * Cancel any possible active sends from early driver load. - * Follows early_init because some chips have to initialize - * PIO buffers in early_init to avoid false parity errors. - */ - ipath_cancel_sends(dd, 0); - /* * Early_init sets rcvhdrentsize and rcvhdrsize, so this must be * done after early_init. @@ -836,6 +817,7 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) ipath_write_kreg(dd, dd->ipath_kregs->kr_sendpioavailaddr, dd->ipath_pioavailregs_phys); + /* * this is to detect s/w errors, which the h/w works around by * ignoring the low 6 bits of address, if it wasn't aligned. @@ -862,12 +844,6 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) ~0ULL&~INFINIPATH_HWE_MEMBISTFAILED); ipath_write_kreg(dd, dd->ipath_kregs->kr_control, 0ULL); - spin_lock_irqsave(&dd->ipath_sendctrl_lock, flags); - dd->ipath_sendctrl = INFINIPATH_S_PIOENABLE; - ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, dd->ipath_sendctrl); - ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); - spin_unlock_irqrestore(&dd->ipath_sendctrl_lock, flags); - /* * before error clears, since we expect serdes pll errors during * this, the first time after reset @@ -940,6 +916,19 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) else enable_chip(dd, reinit); + /* after enable_chip, so pioavailshadow setup */ + ipath_chg_pioavailkernel(dd, 0, piobufs, 1); + + /* + * Cancel any possible active sends from early driver load. + * Follows early_init because some chips have to initialize + * PIO buffers in early_init to avoid false parity errors. + * After enable and ipath_chg_pioavailkernel so we can safely + * enable pioavail updates and PIOENABLE; packets are now + * ready to go out. + */ + ipath_cancel_sends(dd, 1); + if (!reinit) { /* * Used when we close a port, for DMA already in flight diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c index 45c4c068ab1..26900b3b7a4 100644 --- a/drivers/infiniband/hw/ipath/ipath_intr.c +++ b/drivers/infiniband/hw/ipath/ipath_intr.c @@ -38,42 +38,12 @@ #include "ipath_verbs.h" #include "ipath_common.h" -/* - * clear (write) a pio buffer, to clear a parity error. This routine - * should only be called when in freeze mode, and the buffer should be - * canceled afterwards. - */ -static void ipath_clrpiobuf(struct ipath_devdata *dd, u32 pnum) -{ - u32 __iomem *pbuf; - u32 dwcnt; /* dword count to write */ - if (pnum < dd->ipath_piobcnt2k) { - pbuf = (u32 __iomem *) (dd->ipath_pio2kbase + pnum * - dd->ipath_palign); - dwcnt = dd->ipath_piosize2k >> 2; - } - else { - pbuf = (u32 __iomem *) (dd->ipath_pio4kbase + - (pnum - dd->ipath_piobcnt2k) * dd->ipath_4kalign); - dwcnt = dd->ipath_piosize4k >> 2; - } - dev_info(&dd->pcidev->dev, - "Rewrite PIO buffer %u, to recover from parity error\n", - pnum); - - /* no flush required, since already in freeze */ - writel(dwcnt + 1, pbuf); - while (--dwcnt) - writel(0, pbuf++); -} /* * Called when we might have an error that is specific to a particular * PIO buffer, and may need to cancel that buffer, so it can be re-used. - * If rewrite is true, and bits are set in the sendbufferror registers, - * we'll write to the buffer, for error recovery on parity errors. */ -void ipath_disarm_senderrbufs(struct ipath_devdata *dd, int rewrite) +void ipath_disarm_senderrbufs(struct ipath_devdata *dd) { u32 piobcnt; unsigned long sbuf[4]; @@ -109,11 +79,8 @@ void ipath_disarm_senderrbufs(struct ipath_devdata *dd, int rewrite) } for (i = 0; i < piobcnt; i++) - if (test_bit(i, sbuf)) { - if (rewrite) - ipath_clrpiobuf(dd, i); + if (test_bit(i, sbuf)) ipath_disarm_piobufs(dd, i, 1); - } /* ignore armlaunch errs for a bit */ dd->ipath_lastcancel = jiffies+3; } @@ -164,7 +131,7 @@ static u64 handle_e_sum_errs(struct ipath_devdata *dd, ipath_err_t errs) { u64 ignore_this_time = 0; - ipath_disarm_senderrbufs(dd, 0); + ipath_disarm_senderrbufs(dd); if ((errs & E_SUM_LINK_PKTERRS) && !(dd->ipath_flags & IPATH_LINKACTIVE)) { /* @@ -909,8 +876,8 @@ static int handle_errors(struct ipath_devdata *dd, ipath_err_t errs) * processes (causing armlaunch), send errors due to going into freeze mode, * etc., and try to avoid causing extra interrupts while doing so. * Forcibly update the in-memory pioavail register copies after cleanup - * because the chip won't do it for anything changing while in freeze mode - * (we don't want to wait for the next pio buffer state change). + * because the chip won't do it while in freeze mode (the register values + * themselves are kept correct). * Make sure that we don't lose any important interrupts by using the chip * feature that says that writing 0 to a bit in *clear that is set in * *status will cause an interrupt to be generated again (if allowed by @@ -918,47 +885,22 @@ static int handle_errors(struct ipath_devdata *dd, ipath_err_t errs) */ void ipath_clear_freeze(struct ipath_devdata *dd) { - int i, im; - u64 val; - /* disable error interrupts, to avoid confusion */ ipath_write_kreg(dd, dd->ipath_kregs->kr_errormask, 0ULL); /* also disable interrupts; errormask is sometimes overwriten */ ipath_write_kreg(dd, dd->ipath_kregs->kr_intmask, 0ULL); - /* - * clear all sends, because they have may been - * completed by usercode while in freeze mode, and - * therefore would not be sent, and eventually - * might cause the process to run out of bufs - */ ipath_cancel_sends(dd, 1); + + /* clear the freeze, and be sure chip saw it */ ipath_write_kreg(dd, dd->ipath_kregs->kr_control, dd->ipath_control); + ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); - /* - * ensure pio avail updates continue (because the update - * won't have happened from cancel_sends because we were - * still in freeze - */ + /* force in-memory update now we are out of freeze */ ipath_force_pio_avail_update(dd); - /* - * We just enabled pioavailupdate, so dma copy is almost certainly - * not yet right, so read the registers directly. Similar to init - */ - for (i = 0; i < dd->ipath_pioavregs; i++) { - /* deal with 6110 chip bug */ - im = (i > 3 && (dd->ipath_flags & IPATH_SWAP_PIOBUFS)) ? - i ^ 1 : i; - val = ipath_read_kreg64(dd, (0x1000 / sizeof(u64)) + im); - dd->ipath_pioavailregs_dma[i] = cpu_to_le64(val); - dd->ipath_pioavailshadow[i] = val | - (~dd->ipath_pioavailkernel[i] << - INFINIPATH_SENDPIOAVAIL_BUSY_SHIFT); - } - /* * force new interrupt if any hwerr, error or interrupt bits are * still set, and clear "safe" send packet errors related to freeze @@ -1316,10 +1258,8 @@ irqreturn_t ipath_intr(int irq, void *data) ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); spin_unlock_irqrestore(&dd->ipath_sendctrl_lock, flags); - if (!(dd->ipath_flags & IPATH_HAS_SEND_DMA)) - handle_layer_pioavail(dd); - else - ipath_dbg("unexpected BUFAVAIL intr\n"); + /* always process; sdma verbs uses PIO for acks and VL15 */ + handle_layer_pioavail(dd); } ret = IRQ_HANDLED; diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index 202337ae90d..02b24a34059 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -117,6 +117,10 @@ struct ipath_portdata { u16 port_subport_cnt; /* non-zero if port is being shared. */ u16 port_subport_id; + /* number of pio bufs for this port (all procs, if shared) */ + u32 port_piocnt; + /* first pio buffer for this port */ + u32 port_pio_base; /* chip offset of PIO buffers for this port */ u32 port_piobufs; /* how many alloc_pages() chunks in port_rcvegrbuf_pages */ @@ -384,6 +388,8 @@ struct ipath_devdata { u32 ipath_lastrpkts; /* pio bufs allocated per port */ u32 ipath_pbufsport; + /* if remainder on bufs/port, ports < extrabuf get 1 extra */ + u32 ipath_ports_extrabuf; u32 ipath_pioupd_thresh; /* update threshold, some chips */ /* * number of ports configured as max; zero is set to number chip @@ -1011,7 +1017,7 @@ void ipath_get_eeprom_info(struct ipath_devdata *); int ipath_update_eeprom_log(struct ipath_devdata *dd); void ipath_inc_eeprom_err(struct ipath_devdata *dd, u32 eidx, u32 incr); u64 ipath_snap_cntr(struct ipath_devdata *, ipath_creg); -void ipath_disarm_senderrbufs(struct ipath_devdata *, int); +void ipath_disarm_senderrbufs(struct ipath_devdata *); void ipath_force_pio_avail_update(struct ipath_devdata *); void signal_ib_event(struct ipath_devdata *dd, enum ib_event_type ev); diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c index 8ac5c1d82cc..9e3fe61cbd0 100644 --- a/drivers/infiniband/hw/ipath/ipath_ruc.c +++ b/drivers/infiniband/hw/ipath/ipath_ruc.c @@ -481,9 +481,10 @@ done: wake_up(&qp->wait); } -static void want_buffer(struct ipath_devdata *dd) +static void want_buffer(struct ipath_devdata *dd, struct ipath_qp *qp) { - if (!(dd->ipath_flags & IPATH_HAS_SEND_DMA)) { + if (!(dd->ipath_flags & IPATH_HAS_SEND_DMA) || + qp->ibqp.qp_type == IB_QPT_SMI) { unsigned long flags; spin_lock_irqsave(&dd->ipath_sendctrl_lock, flags); @@ -519,7 +520,7 @@ static void ipath_no_bufs_available(struct ipath_qp *qp, spin_lock_irqsave(&dev->pending_lock, flags); list_add_tail(&qp->piowait, &dev->piowait); spin_unlock_irqrestore(&dev->pending_lock, flags); - want_buffer(dev->dd); + want_buffer(dev->dd, qp); dev->n_piowait++; } diff --git a/drivers/infiniband/hw/ipath/ipath_sdma.c b/drivers/infiniband/hw/ipath/ipath_sdma.c index 1974df7a9f7..0d07682c731 100644 --- a/drivers/infiniband/hw/ipath/ipath_sdma.c +++ b/drivers/infiniband/hw/ipath/ipath_sdma.c @@ -449,16 +449,19 @@ int setup_sdma(struct ipath_devdata *dd) ipath_write_kreg(dd, dd->ipath_kregs->kr_senddmaheadaddr, dd->ipath_sdma_head_phys); - /* Reserve all the former "kernel" piobufs */ - n = dd->ipath_piobcnt2k + dd->ipath_piobcnt4k - dd->ipath_pioreserved; - for (i = dd->ipath_lastport_piobuf; i < n; ++i) { + /* + * Reserve all the former "kernel" piobufs, using high number range + * so we get as many 4K buffers as possible + */ + n = dd->ipath_piobcnt2k + dd->ipath_piobcnt4k; + i = dd->ipath_lastport_piobuf + dd->ipath_pioreserved; + ipath_chg_pioavailkernel(dd, i, n - i , 0); + for (; i < n; ++i) { unsigned word = i / 64; unsigned bit = i & 63; BUG_ON(word >= 3); senddmabufmask[word] |= 1ULL << bit; } - ipath_chg_pioavailkernel(dd, dd->ipath_lastport_piobuf, - n - dd->ipath_lastport_piobuf, 0); ipath_write_kreg(dd, dd->ipath_kregs->kr_senddmabufmask0, senddmabufmask[0]); ipath_write_kreg(dd, dd->ipath_kregs->kr_senddmabufmask1, -- cgit v1.2.3-70-g09d2 From ab69b3cf1219e0d07bb4ea373f36b1de38af531c Mon Sep 17 00:00:00 2001 From: John Gregor Date: Wed, 7 May 2008 11:01:10 -0700 Subject: IB/ipath: Fix SDMA error recovery in absence of link status change What's fixed: in ipath_cancel_sends() We need to unconditionally set ABORTING. So, swap the tests so the set_bit() isn't shadowed by the &&. If we've disarmed the piobufs, then we need to unconditionally set DISARMED. So, move it out from the overly protective if at the bottom. in sdma_abort_task() Abort_task was written knowing that the SDMA engine would always be reset (and restarted) on error. A recent change broke that fundamental assumption by taking the restart portion and making it conditional on a link status change. But, SDMA can go boom without a link status change in some conditions. Signed-off-by: John Gregor Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_driver.c | 8 +++++--- drivers/infiniband/hw/ipath/ipath_sdma.c | 31 +++++++++++++++++++++++------- 2 files changed, 29 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index 2036d38fac4..ce7b7c34360 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -1898,8 +1898,8 @@ void ipath_cancel_sends(struct ipath_devdata *dd, int restore_sendctrl) spin_lock_irqsave(&dd->ipath_sdma_lock, flags); skip_cancel = - !test_bit(IPATH_SDMA_DISABLED, statp) && - test_and_set_bit(IPATH_SDMA_ABORTING, statp); + test_and_set_bit(IPATH_SDMA_ABORTING, statp) + && !test_bit(IPATH_SDMA_DISABLED, statp); spin_unlock_irqrestore(&dd->ipath_sdma_lock, flags); if (skip_cancel) goto bail; @@ -1930,6 +1930,9 @@ void ipath_cancel_sends(struct ipath_devdata *dd, int restore_sendctrl) ipath_disarm_piobufs(dd, 0, dd->ipath_piobcnt2k + dd->ipath_piobcnt4k); + if (dd->ipath_flags & IPATH_HAS_SEND_DMA) + set_bit(IPATH_SDMA_DISARMED, &dd->ipath_sdma_status); + if (restore_sendctrl) { /* else done by caller later if needed */ spin_lock_irqsave(&dd->ipath_sendctrl_lock, flags); @@ -1949,7 +1952,6 @@ void ipath_cancel_sends(struct ipath_devdata *dd, int restore_sendctrl) /* only wait so long for intr */ dd->ipath_sdma_abort_intr_timeout = jiffies + HZ; dd->ipath_sdma_reset_wait = 200; - __set_bit(IPATH_SDMA_DISARMED, &dd->ipath_sdma_status); if (!test_bit(IPATH_SDMA_SHUTDOWN, &dd->ipath_sdma_status)) tasklet_hi_schedule(&dd->ipath_sdma_abort_task); spin_unlock_irqrestore(&dd->ipath_sdma_lock, flags); diff --git a/drivers/infiniband/hw/ipath/ipath_sdma.c b/drivers/infiniband/hw/ipath/ipath_sdma.c index 0d07682c731..3697449c1ba 100644 --- a/drivers/infiniband/hw/ipath/ipath_sdma.c +++ b/drivers/infiniband/hw/ipath/ipath_sdma.c @@ -308,13 +308,15 @@ static void sdma_abort_task(unsigned long opaque) spin_unlock_irqrestore(&dd->ipath_sdma_lock, flags); /* - * Don't restart sdma here. Wait until link is up to ACTIVE. - * VL15 MADs used to bring the link up use PIO, and multiple - * link transitions otherwise cause the sdma engine to be + * Don't restart sdma here (with the exception + * below). Wait until link is up to ACTIVE. VL15 MADs + * used to bring the link up use PIO, and multiple link + * transitions otherwise cause the sdma engine to be * stopped and started multiple times. - * The disable is done here, including the shadow, so the - * state is kept consistent. - * See ipath_restart_sdma() for the actual starting of sdma. + * The disable is done here, including the shadow, + * so the state is kept consistent. + * See ipath_restart_sdma() for the actual starting + * of sdma. */ spin_lock_irqsave(&dd->ipath_sendctrl_lock, flags); dd->ipath_sendctrl &= ~INFINIPATH_S_SDMAENABLE; @@ -326,6 +328,13 @@ static void sdma_abort_task(unsigned long opaque) /* make sure I see next message */ dd->ipath_sdma_abort_jiffies = 0; + /* + * Not everything that takes SDMA offline is a link + * status change. If the link was up, restart SDMA. + */ + if (dd->ipath_flags & IPATH_LINKACTIVE) + ipath_restart_sdma(dd); + goto done; } @@ -427,7 +436,12 @@ int setup_sdma(struct ipath_devdata *dd) goto done; } - dd->ipath_sdma_status = 0; + /* + * Set initial status as if we had been up, then gone down. + * This lets initial start on transition to ACTIVE be the + * same as restart after link flap. + */ + dd->ipath_sdma_status = IPATH_SDMA_ABORT_ABORTED; dd->ipath_sdma_abort_jiffies = 0; dd->ipath_sdma_generation = 0; dd->ipath_sdma_descq_tail = 0; @@ -618,6 +632,9 @@ void ipath_restart_sdma(struct ipath_devdata *dd) ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); spin_unlock_irqrestore(&dd->ipath_sendctrl_lock, flags); + /* notify upper layers */ + ipath_ib_piobufavail(dd->verbs_dev); + bail: return; } -- cgit v1.2.3-70-g09d2 From 12137c593d127c6c1a3eb050674da047682badaf Mon Sep 17 00:00:00 2001 From: Stefan Roscher Date: Wed, 7 May 2008 11:35:06 -0700 Subject: IB/ehca: Wait for async events to finish before destroying QP This is necessary because, in a multicore environment, a race between uverbs async handler and destroy QP could occur. Signed-off-by: Stefan Roscher Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ehca/ehca_classes.h | 2 ++ drivers/infiniband/hw/ehca/ehca_irq.c | 4 ++++ drivers/infiniband/hw/ehca/ehca_qp.c | 5 +++++ 3 files changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h index 00bab60f6de..1e9e99a1393 100644 --- a/drivers/infiniband/hw/ehca/ehca_classes.h +++ b/drivers/infiniband/hw/ehca/ehca_classes.h @@ -192,6 +192,8 @@ struct ehca_qp { int mtu_shift; u32 message_count; u32 packet_count; + atomic_t nr_events; /* events seen */ + wait_queue_head_t wait_completion; }; #define IS_SRQ(qp) (qp->ext_type == EQPT_SRQ) diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c index ca5eb0cb628..ce1ab0571be 100644 --- a/drivers/infiniband/hw/ehca/ehca_irq.c +++ b/drivers/infiniband/hw/ehca/ehca_irq.c @@ -204,6 +204,8 @@ static void qp_event_callback(struct ehca_shca *shca, u64 eqe, read_lock(&ehca_qp_idr_lock); qp = idr_find(&ehca_qp_idr, token); + if (qp) + atomic_inc(&qp->nr_events); read_unlock(&ehca_qp_idr_lock); if (!qp) @@ -223,6 +225,8 @@ static void qp_event_callback(struct ehca_shca *shca, u64 eqe, if (fatal && qp->ext_type == EQPT_SRQBASE) dispatch_qp_event(shca, qp, IB_EVENT_QP_LAST_WQE_REACHED); + if (atomic_dec_and_test(&qp->nr_events)) + wake_up(&qp->wait_completion); return; } diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c index 18fba92fa7a..3f59587338e 100644 --- a/drivers/infiniband/hw/ehca/ehca_qp.c +++ b/drivers/infiniband/hw/ehca/ehca_qp.c @@ -566,6 +566,8 @@ static struct ehca_qp *internal_create_qp( return ERR_PTR(-ENOMEM); } + atomic_set(&my_qp->nr_events, 0); + init_waitqueue_head(&my_qp->wait_completion); spin_lock_init(&my_qp->spinlock_s); spin_lock_init(&my_qp->spinlock_r); my_qp->qp_type = qp_type; @@ -1934,6 +1936,9 @@ static int internal_destroy_qp(struct ib_device *dev, struct ehca_qp *my_qp, idr_remove(&ehca_qp_idr, my_qp->token); write_unlock_irqrestore(&ehca_qp_idr_lock, flags); + /* now wait until all pending events have completed */ + wait_event(my_qp->wait_completion, !atomic_read(&my_qp->nr_events)); + h_ret = hipz_h_destroy_qp(shca->ipz_hca_handle, my_qp); if (h_ret != H_SUCCESS) { ehca_err(dev, "hipz_h_destroy_qp() failed h_ret=%li " -- cgit v1.2.3-70-g09d2 From 7312096454b6cd71267eaa3d0efb408e449e9ff3 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Thu, 8 May 2008 01:13:31 -0700 Subject: macvlan: Fix memleak on device removal/crash on module removal As noticed by Ben Greear, macvlan crashes the kernel when unloading the module. The reason is that it tries to clean up the macvlan_port pointer on the macvlan device itself instead of the underlying device. A non-NULL pointer is taken as indication that the macvlan_handle_frame_hook is valid, when receiving the next packet on the underlying device it tries to call the NULL hook and crashes. Clean up the macvlan_port on the correct device to fix this. Signed-off-by; Patrick McHardy Tested-by: Ben Greear Signed-off-by: David S. Miller --- drivers/net/macvlan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 2056cfc624d..c36a03ae9bf 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -450,7 +450,7 @@ static void macvlan_dellink(struct net_device *dev) unregister_netdevice(dev); if (list_empty(&port->vlans)) - macvlan_port_destroy(dev); + macvlan_port_destroy(port->dev); } static struct rtnl_link_ops macvlan_link_ops __read_mostly = { -- cgit v1.2.3-70-g09d2 From 3f9827bc05581b6bb34ab0c6b5d8e028f71b4e78 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Tue, 6 May 2008 20:42:26 -0700 Subject: Kconfig: improved help for CONFIG_ACCESSIBILITY Add a small explanation of what accessibility is. Signed-off-by: Samuel Thibault Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/accessibility/Kconfig | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/accessibility/Kconfig b/drivers/accessibility/Kconfig index 1264c4b9809..ef3b65bfdd0 100644 --- a/drivers/accessibility/Kconfig +++ b/drivers/accessibility/Kconfig @@ -1,7 +1,17 @@ menuconfig ACCESSIBILITY bool "Accessibility support" ---help--- - Enable a submenu where accessibility items may be enabled. + Accessibility handles all special kinds of hardware devices or + software adapters which help people with disabilities (e.g. + blindness) to use computers. + + That includes braille devices, speech synthesis, keyboard + remapping, etc. + + Say Y here to get to see options for accessibility. + This option alone does not add any kernel code. + + If you say N, all options in this submenu will be skipped and disabled. If unsure, say N. -- cgit v1.2.3-70-g09d2 From 55d7b68996a5064f011d681bca412b6281d2f711 Mon Sep 17 00:00:00 2001 From: Tetsuo Handa Date: Tue, 6 May 2008 20:42:27 -0700 Subject: serial: access after NULL check in uart_flush_buffer() I noticed that static void uart_flush_buffer(struct tty_struct *tty) { struct uart_state *state = tty->driver_data; struct uart_port *port = state->port; unsigned long flags; /* * This means you called this function _after_ the port was * closed. No cookie for you. */ if (!state || !state->info) { WARN_ON(1); return; } is too late for checking state != NULL. Signed-off-by: Tetsuo Handa Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/serial/serial_core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index 1e2b9d826f6..eab03273379 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -556,7 +556,7 @@ static int uart_chars_in_buffer(struct tty_struct *tty) static void uart_flush_buffer(struct tty_struct *tty) { struct uart_state *state = tty->driver_data; - struct uart_port *port = state->port; + struct uart_port *port; unsigned long flags; /* @@ -568,6 +568,7 @@ static void uart_flush_buffer(struct tty_struct *tty) return; } + port = state->port; pr_debug("uart_flush_buffer(%d) called\n", tty->index); spin_lock_irqsave(&port->lock, flags); -- cgit v1.2.3-70-g09d2 From a8b1ecf3d5c48ebde9fed61c7a682b2270e09d2b Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Tue, 6 May 2008 20:42:29 -0700 Subject: fix irq flags in saa7134 Some files in the drivers/media/video/saa7134 directory uses "int" for flags. This can cause hard to find bugs on some architectures. This patch converts the flags to use "long" instead. This bug was discovered by doing an allyesconfig make on the -rt kernel where checks are done to ensure all flags are of size sizeof(long). Signed-off-by: Steven Rostedt Acked-by: Mauro Carvalho Chehab Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/video/saa7134/saa7134-video.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c index a0baf2d0ba7..48e1a01718e 100644 --- a/drivers/media/video/saa7134/saa7134-video.c +++ b/drivers/media/video/saa7134/saa7134-video.c @@ -1634,7 +1634,7 @@ static int saa7134_s_fmt_overlay(struct file *file, void *priv, struct saa7134_fh *fh = priv; struct saa7134_dev *dev = fh->dev; int err; - unsigned int flags; + unsigned long flags; if (saa7134_no_overlay > 0) { printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n"); -- cgit v1.2.3-70-g09d2 From 9a0f4aea878315ba87cb8a4d0dddc67832218e3f Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Tue, 6 May 2008 20:42:30 -0700 Subject: fix irq flags in rtc-ds1511 The file in drivers/rtc/rtc-ds1551.c uses "int" for flags. This can cause hard to find bugs on some architectures. This patch converts the flags to use "long" instead. This bug was discovered by doing an allyesconfig make on the -rt kernel where checks are done to ensure all flags are of size sizeof(long). Signed-off-by: Steven Rostedt Cc: Alessandro Zummo Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/rtc-ds1511.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c index a83a40b3eba..0f0d27d1c4c 100644 --- a/drivers/rtc/rtc-ds1511.c +++ b/drivers/rtc/rtc-ds1511.c @@ -184,7 +184,7 @@ ds1511_wdog_disable(void) static int ds1511_rtc_set_time(struct device *dev, struct rtc_time *rtc_tm) { u8 mon, day, dow, hrs, min, sec, yrs, cen; - unsigned int flags; + unsigned long flags; /* * won't have to change this for a while @@ -247,7 +247,7 @@ static int ds1511_rtc_set_time(struct device *dev, struct rtc_time *rtc_tm) static int ds1511_rtc_read_time(struct device *dev, struct rtc_time *rtc_tm) { unsigned int century; - unsigned int flags; + unsigned long flags; spin_lock_irqsave(&ds1511_lock, flags); rtc_disable_update(); -- cgit v1.2.3-70-g09d2 From 8594303a7abc1a117b1d91412ce9b3d77ed35d02 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Tue, 6 May 2008 20:42:31 -0700 Subject: fix irq flags for iuu_phoenix.c The file drivers/usb/serial/iuu_phoenix.c uses "int" for flags. This can cause hard to find bugs on some architectures. This patch converts the flags to use "long" instead. This bug was discovered by doing an allyesconfig make on the -rt kernel where checks are done to ensure all flags are of size sizeof(long). Signed-off-by: Steven Rostedt Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/usb/serial/iuu_phoenix.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index 8a217648b25..a01e987c7d3 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -643,7 +643,7 @@ static void read_buf_callback(struct urb *urb) static int iuu_bulk_write(struct usb_serial_port *port) { struct iuu_private *priv = usb_get_serial_port_data(port); - unsigned int flags; + unsigned long flags; int result; int i; char *buf_ptr = port->write_urb->transfer_buffer; @@ -694,7 +694,7 @@ static void iuu_uart_read_callback(struct urb *urb) { struct usb_serial_port *port = urb->context; struct iuu_private *priv = usb_get_serial_port_data(port); - unsigned int flags; + unsigned long flags; int status; int error = 0; int len = 0; @@ -759,7 +759,7 @@ static int iuu_uart_write(struct usb_serial_port *port, const u8 *buf, int count) { struct iuu_private *priv = usb_get_serial_port_data(port); - unsigned int flags; + unsigned long flags; dbg("%s - enter", __func__); if (count > 256) -- cgit v1.2.3-70-g09d2 From cb6969e8cdef39e613b1755eff595f830b89bc82 Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Tue, 6 May 2008 20:42:32 -0700 Subject: misc: fix integer as NULL pointer warnings drivers/md/raid10.c:889:17: warning: Using plain integer as NULL pointer drivers/media/video/cx18/cx18-driver.c:616:12: warning: Using plain integer as NULL pointer sound/oss/kahlua.c:70:12: warning: Using plain integer as NULL pointer Signed-off-by: Harvey Harrison Cc: Neil Brown Cc: Mauro Carvalho Chehab Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/raid10.c | 2 +- drivers/media/video/cx18/cx18-driver.c | 2 +- sound/oss/kahlua.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 5938fa96292..faf3d891297 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -886,7 +886,7 @@ static int make_request(struct request_queue *q, struct bio * bio) */ raid10_find_phys(conf, r10_bio); retry_write: - blocked_rdev = 0; + blocked_rdev = NULL; rcu_read_lock(); for (i = 0; i < conf->copies; i++) { int d = r10_bio->devs[i].devnum; diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index 8f5ed9b4bf8..3f55d47bc4b 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -613,7 +613,7 @@ static int __devinit cx18_probe(struct pci_dev *dev, } cx = kzalloc(sizeof(struct cx18), GFP_ATOMIC); - if (cx == 0) { + if (!cx) { spin_unlock(&cx18_cards_lock); return -ENOMEM; } diff --git a/sound/oss/kahlua.c b/sound/oss/kahlua.c index dfe670f12e6..eb9bc365530 100644 --- a/sound/oss/kahlua.c +++ b/sound/oss/kahlua.c @@ -67,7 +67,7 @@ static int __devinit probe_one(struct pci_dev *pdev, const struct pci_device_id return 1; mem = ioremap(base, 128); - if(mem == 0UL) + if (!mem) return 1; map = readw(mem + 0x18); /* Read the SMI enables */ iounmap(mem); -- cgit v1.2.3-70-g09d2 From 32fb3ca8fda036936053b4bbfbc6589626cb2437 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 6 May 2008 20:42:35 -0700 Subject: sx.c: fix printk warnings on sparc32 drivers/char/sx.c: In function 'sx_set_real_termios': drivers/char/sx.c:973: warning: format '%u' expects type 'unsigned int', but argument 2 has type 'long unsigned int' drivers/char/sx.c:999: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'tcflag_t' drivers/char/sx.c:1012: warning: format '%x' expects type 'unsigned int', but argument 2 has type 'tcflag_t' sparc32 seems to use weird types for its tty things. [ Fine by me but this is ancient debug and most of the debug in sx just wants deleting eventually. - Alan ] Signed-off-by: Andrew Morton Acked-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/char/sx.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/char/sx.c b/drivers/char/sx.c index f39f6fd8935..b1a7a8cb65e 100644 --- a/drivers/char/sx.c +++ b/drivers/char/sx.c @@ -970,7 +970,8 @@ static int sx_set_real_termios(void *ptr) sx_write_channel_byte(port, hi_mask, 0x1f); break; default: - printk(KERN_INFO "sx: Invalid wordsize: %u\n", CFLAG & CSIZE); + printk(KERN_INFO "sx: Invalid wordsize: %u\n", + (unsigned int)CFLAG & CSIZE); break; } @@ -997,7 +998,8 @@ static int sx_set_real_termios(void *ptr) set_bit(TTY_HW_COOK_IN, &port->gs.tty->flags); } sx_dprintk(SX_DEBUG_TERMIOS, "iflags: %x(%d) ", - port->gs.tty->termios->c_iflag, I_OTHER(port->gs.tty)); + (unsigned int)port->gs.tty->termios->c_iflag, + I_OTHER(port->gs.tty)); /* Tell line discipline whether we will do output cooking. * If OPOST is set and no other output flags are set then we can do output @@ -1010,7 +1012,8 @@ static int sx_set_real_termios(void *ptr) clear_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags); } sx_dprintk(SX_DEBUG_TERMIOS, "oflags: %x(%d)\n", - port->gs.tty->termios->c_oflag, O_OTHER(port->gs.tty)); + (unsigned int)port->gs.tty->termios->c_oflag, + O_OTHER(port->gs.tty)); /* port->c_dcd = sx_get_CD (port); */ func_exit(); return 0; -- cgit v1.2.3-70-g09d2 From ac7b77f13f2f33270276f88ad0f427e031552e04 Mon Sep 17 00:00:00 2001 From: Mattia Dongili Date: Tue, 6 May 2008 20:42:35 -0700 Subject: usb/asix: add Buffalo LUA-U2-GT 10/100/1000 The USB net adapter Buffalo LUA-U2-GT (0411:006e) carries a AX88178 chip. Tested on the above HW. Signed-off-by: Mattia Dongili Acked-off-by: David Hollis Cc: Greg KH Acked-by: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/net/usb/asix.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c index 6f245cfb662..dc6f097062d 100644 --- a/drivers/net/usb/asix.c +++ b/drivers/net/usb/asix.c @@ -1380,6 +1380,10 @@ static const struct usb_device_id products [] = { // Buffalo LUA-U2-KTX USB_DEVICE (0x0411, 0x003d), .driver_info = (unsigned long) &ax8817x_info, +}, { + // Buffalo LUA-U2-GT 10/100/1000 + USB_DEVICE (0x0411, 0x006e), + .driver_info = (unsigned long) &ax88178_info, }, { // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter" USB_DEVICE (0x6189, 0x182d), -- cgit v1.2.3-70-g09d2 From c1236d31a1b9fc018b85e15a3e58e3601ddc90ae Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Tue, 6 May 2008 20:42:37 -0700 Subject: vt: fix canonical input in UTF-8 mode For e.g. proper TTY canonical support, IUTF8 termios flag has to be set as appropriate. Linux used to not care about setting that flag for VT TTYs. This patch fixes that by activating it according to the current mode of the VT, and sets the default value according to the vt.default_utf8 parameter. Signed-off-by: Samuel Thibault Cc: Willy Tarreau Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/vt.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/char/vt.c b/drivers/char/vt.c index e458b08139a..fa1ffbf2c62 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -2742,6 +2742,10 @@ static int con_open(struct tty_struct *tty, struct file *filp) tty->winsize.ws_row = vc_cons[currcons].d->vc_rows; tty->winsize.ws_col = vc_cons[currcons].d->vc_cols; } + if (vc->vc_utf) + tty->termios->c_iflag |= IUTF8; + else + tty->termios->c_iflag &= ~IUTF8; release_console_sem(); vcs_make_sysfs(tty); return ret; @@ -2918,6 +2922,8 @@ int __init vty_init(void) console_driver->minor_start = 1; console_driver->type = TTY_DRIVER_TYPE_CONSOLE; console_driver->init_termios = tty_std_termios; + if (default_utf8) + console_driver->init_termios.c_iflag |= IUTF8; console_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_RESET_TERMIOS; tty_set_operations(console_driver, &con_ops); if (tty_register_driver(console_driver)) -- cgit v1.2.3-70-g09d2 From 8b2cc917a02936c3ea7d8da46801c7b7b6233093 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 6 May 2008 20:42:42 -0700 Subject: drivers/scsi/dpt_i2o.c: fix build on alpha alpha: drivers/scsi/dpt_i2o.c:1997: error: implicit declaration of function 'adpt_alpha_info' drivers/scsi/dpt_i2o.c: At top level: drivers/scsi/dpt_i2o.c:2032: warning: conflicting types for 'adpt_alpha_info' drivers/scsi/dpt_i2o.c:2032: error: static declaration of 'adpt_alpha_info' follows non-static declaration drivers/scsi/dpt_i2o.c:1997: error: previous implicit declaration of 'adpt_alpha_info' was here Due to a copy-n-paste error in drivers/scsi/dpti.h. Fix that up and remove some of the many daft static-declarations-in-a-header which this driver enjoys. Cc: Miquel van Smoorenburg Cc: James Bottomley Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/scsi/dpt_i2o.c | 78 +++++++++++++++++++++++--------------------------- drivers/scsi/dpti.h | 13 --------- 2 files changed, 36 insertions(+), 55 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index 0fb5bf4c43a..8508816f303 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -1967,45 +1967,6 @@ cleanup: return rcode; } - -/* - * This routine returns information about the system. This does not effect - * any logic and if the info is wrong - it doesn't matter. - */ - -/* Get all the info we can not get from kernel services */ -static int adpt_system_info(void __user *buffer) -{ - sysInfo_S si; - - memset(&si, 0, sizeof(si)); - - si.osType = OS_LINUX; - si.osMajorVersion = 0; - si.osMinorVersion = 0; - si.osRevision = 0; - si.busType = SI_PCI_BUS; - si.processorFamily = DPTI_sig.dsProcessorFamily; - -#if defined __i386__ - adpt_i386_info(&si); -#elif defined (__ia64__) - adpt_ia64_info(&si); -#elif defined(__sparc__) - adpt_sparc_info(&si); -#elif defined (__alpha__) - adpt_alpha_info(&si); -#else - si.processorType = 0xff ; -#endif - if(copy_to_user(buffer, &si, sizeof(si))){ - printk(KERN_WARNING"dpti: Could not copy buffer TO user\n"); - return -EFAULT; - } - - return 0; -} - #if defined __ia64__ static void adpt_ia64_info(sysInfo_S* si) { @@ -2016,7 +1977,6 @@ static void adpt_ia64_info(sysInfo_S* si) } #endif - #if defined __sparc__ static void adpt_sparc_info(sysInfo_S* si) { @@ -2026,7 +1986,6 @@ static void adpt_sparc_info(sysInfo_S* si) si->processorType = PROC_ULTRASPARC; } #endif - #if defined __alpha__ static void adpt_alpha_info(sysInfo_S* si) { @@ -2038,7 +1997,6 @@ static void adpt_alpha_info(sysInfo_S* si) #endif #if defined __i386__ - static void adpt_i386_info(sysInfo_S* si) { // This is all the info we need for now @@ -2059,9 +2017,45 @@ static void adpt_i386_info(sysInfo_S* si) break; } } +#endif + +/* + * This routine returns information about the system. This does not effect + * any logic and if the info is wrong - it doesn't matter. + */ +/* Get all the info we can not get from kernel services */ +static int adpt_system_info(void __user *buffer) +{ + sysInfo_S si; + + memset(&si, 0, sizeof(si)); + + si.osType = OS_LINUX; + si.osMajorVersion = 0; + si.osMinorVersion = 0; + si.osRevision = 0; + si.busType = SI_PCI_BUS; + si.processorFamily = DPTI_sig.dsProcessorFamily; + +#if defined __i386__ + adpt_i386_info(&si); +#elif defined (__ia64__) + adpt_ia64_info(&si); +#elif defined(__sparc__) + adpt_sparc_info(&si); +#elif defined (__alpha__) + adpt_alpha_info(&si); +#else + si.processorType = 0xff ; #endif + if (copy_to_user(buffer, &si, sizeof(si))){ + printk(KERN_WARNING"dpti: Could not copy buffer TO user\n"); + return -EFAULT; + } + return 0; +} static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg) diff --git a/drivers/scsi/dpti.h b/drivers/scsi/dpti.h index 924cd5a5167..337746d4604 100644 --- a/drivers/scsi/dpti.h +++ b/drivers/scsi/dpti.h @@ -316,19 +316,6 @@ static int adpt_close(struct inode *inode, struct file *file); static void adpt_delay(int millisec); #endif -#if defined __ia64__ -static void adpt_ia64_info(sysInfo_S* si); -#endif -#if defined __sparc__ -static void adpt_sparc_info(sysInfo_S* si); -#endif -#if defined __alpha__ -static void adpt_sparc_info(sysInfo_S* si); -#endif -#if defined __i386__ -static void adpt_i386_info(sysInfo_S* si); -#endif - #define PRINT_BUFFER_SIZE 512 #define HBA_FLAGS_DBG_FLAGS_MASK 0xffff0000 // Mask for debug flags -- cgit v1.2.3-70-g09d2 From f7c83a0aaa772f8d0189fa197d77c762caaa367a Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 30 Apr 2008 09:48:07 +0200 Subject: Fix drivers/media build for modular builds Fix allmodconfig build bug introduced in latest -git by commit 7c91f0624a9 ("V4L/DVB(7767): Move tuners to common/tuners"): LD kernel/built-in.o LD drivers/built-in.o ld: drivers/media/built-in.o: No such file: No such file or directory which happens if all media drivers are modular: http://redhat.com/~mingo/misc/config-Wed_Apr_30_09_24_48_CEST_2008.bad In that case there's no obj-y rule connecting all the built-in.o files and the link tree breaks. The fix is to add a guaranteed obj-y rule for the core vmlinux to build. (which results in an empty object file if all media drivers are modular) Signed-off-by: Ingo Molnar Acked-by: Sam Ravnborg Signed-off-by: Stephen Rothwell Signed-off-by: Linus Torvalds --- drivers/media/Makefile | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/media/Makefile b/drivers/media/Makefile index 73f742c7e81..cc11c4c0e7e 100644 --- a/drivers/media/Makefile +++ b/drivers/media/Makefile @@ -2,6 +2,8 @@ # Makefile for the kernel multimedia device drivers. # +obj-y := common/ + obj-$(CONFIG_VIDEO_MEDIA) += common/ # Since hybrid devices are here, should be compiled if DVB and/or V4L -- cgit v1.2.3-70-g09d2