diff options
| author | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:18:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:19:04 +0200 |
| commit | 6ac1ef482d7ae0c690f1640bf6eb818ff9a2d91e (patch) | |
| tree | 021cc9f6b477146fcebe6f3be4752abfa2ba18a9 /drivers/net/ethernet/marvell/sky2.c | |
| parent | 682968e0c425c60f0dde37977e5beb2b12ddc4cc (diff) | |
| parent | a385ec4f11bdcf81af094c03e2444ee9b7fad2e5 (diff) | |
Merge branch 'perf/core' into perf/uprobes
Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/marvell/sky2.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/sky2.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c index 760c2b17dfd..c9b504e2dfc 100644 --- a/drivers/net/ethernet/marvell/sky2.c +++ b/drivers/net/ethernet/marvell/sky2.c @@ -95,6 +95,10 @@ static int disable_msi = 0; module_param(disable_msi, int, 0); MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)"); +static int legacy_pme = 0; +module_param(legacy_pme, int, 0); +MODULE_PARM_DESC(legacy_pme, "Legacy power management"); + static DEFINE_PCI_DEVICE_TABLE(sky2_id_table) = { { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) }, /* SK-9Sxx */ { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */ @@ -867,6 +871,13 @@ static void sky2_wol_init(struct sky2_port *sky2) /* Disable PiG firmware */ sky2_write16(hw, B0_CTST, Y2_HW_WOL_OFF); + /* Needed by some broken BIOSes, use PCI rather than PCI-e for WOL */ + if (legacy_pme) { + u32 reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); + reg1 |= PCI_Y2_PME_LEGACY; + sky2_pci_write32(hw, PCI_DEV_REG1, reg1); + } + /* block receiver */ sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET); sky2_read32(hw, B0_CTST); @@ -1756,13 +1767,14 @@ static int sky2_open(struct net_device *dev) sky2_hw_up(sky2); + /* Enable interrupts from phy/mac for port */ + imask = sky2_read32(hw, B0_IMSK); + if (hw->chip_id == CHIP_ID_YUKON_OPT || hw->chip_id == CHIP_ID_YUKON_PRM || hw->chip_id == CHIP_ID_YUKON_OP_2) imask |= Y2_IS_PHY_QLNK; /* enable PHY Quick Link */ - /* Enable interrupts from phy/mac for port */ - imask = sky2_read32(hw, B0_IMSK); imask |= portirq_msk[port]; sky2_write32(hw, B0_IMSK, imask); sky2_read32(hw, B0_IMSK); @@ -2457,6 +2469,17 @@ static int sky2_change_mtu(struct net_device *dev, int new_mtu) return err; } +static inline bool needs_copy(const struct rx_ring_info *re, + unsigned length) +{ +#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS + /* Some architectures need the IP header to be aligned */ + if (!IS_ALIGNED(re->data_addr + ETH_HLEN, sizeof(u32))) + return true; +#endif + return length < copybreak; +} + /* For small just reuse existing skb for next receive */ static struct sk_buff *receive_copy(struct sky2_port *sky2, const struct rx_ring_info *re, @@ -2587,7 +2610,7 @@ static struct sk_buff *sky2_receive(struct net_device *dev, goto error; okay: - if (length < copybreak) + if (needs_copy(re, length)) skb = receive_copy(sky2, re, length); else skb = receive_new(sky2, re, length); @@ -4700,10 +4723,8 @@ static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw, struct sky2_port *sky2; struct net_device *dev = alloc_etherdev(sizeof(*sky2)); - if (!dev) { - dev_err(&hw->pdev->dev, "etherdev alloc failed\n"); + if (!dev) return NULL; - } SET_NETDEV_DEV(dev, &hw->pdev->dev); dev->irq = hw->pdev->irq; |