diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/forcedeth.c | 98 |
1 files changed, 82 insertions, 16 deletions
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 7825be7586f..da7c9ee069b 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -157,6 +157,9 @@ enum { #define NVREG_XMITCTL_HOST_SEMA_ACQ 0x0000f000 #define NVREG_XMITCTL_HOST_LOADED 0x00004000 #define NVREG_XMITCTL_TX_PATH_EN 0x01000000 +#define NVREG_XMITCTL_DATA_START 0x00100000 +#define NVREG_XMITCTL_DATA_READY 0x00010000 +#define NVREG_XMITCTL_DATA_ERROR 0x00020000 NvRegTransmitterStatus = 0x088, #define NVREG_XMITSTAT_BUSY 0x01 @@ -289,8 +292,10 @@ enum { #define NVREG_WAKEUPFLAGS_ACCEPT_LINKCHANGE 0x04 #define NVREG_WAKEUPFLAGS_ENABLE 0x1111 - NvRegPatternCRC = 0x204, - NvRegPatternMask = 0x208, + NvRegMgmtUnitGetVersion = 0x204, +#define NVREG_MGMTUNITGETVERSION 0x01 + NvRegMgmtUnitVersion = 0x208, +#define NVREG_MGMTUNITVERSION 0x08 NvRegPowerCap = 0x268, #define NVREG_POWERCAP_D3SUPP (1<<30) #define NVREG_POWERCAP_D2SUPP (1<<26) @@ -303,6 +308,8 @@ enum { #define NVREG_POWERSTATE_D1 0x0001 #define NVREG_POWERSTATE_D2 0x0002 #define NVREG_POWERSTATE_D3 0x0003 + NvRegMgmtUnitControl = 0x278, +#define NVREG_MGMTUNITCONTROL_INUSE 0x20000 NvRegTxCnt = 0x280, NvRegTxZeroReXmt = 0x284, NvRegTxOneReXmt = 0x288, @@ -758,6 +765,8 @@ struct fe_priv { u32 register_size; int rx_csum; u32 mac_in_use; + int mgmt_version; + int mgmt_sema; void __iomem *base; @@ -5182,6 +5191,7 @@ static void nv_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) /* The mgmt unit and driver use a semaphore to access the phy during init */ static int nv_mgmt_acquire_sema(struct net_device *dev) { + struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); int i; u32 tx_ctrl, mgmt_sema; @@ -5204,8 +5214,10 @@ static int nv_mgmt_acquire_sema(struct net_device *dev) /* verify that semaphore was acquired */ tx_ctrl = readl(base + NvRegTransmitterControl); if (((tx_ctrl & NVREG_XMITCTL_HOST_SEMA_MASK) == NVREG_XMITCTL_HOST_SEMA_ACQ) && - ((tx_ctrl & NVREG_XMITCTL_MGMT_SEMA_MASK) == NVREG_XMITCTL_MGMT_SEMA_FREE)) + ((tx_ctrl & NVREG_XMITCTL_MGMT_SEMA_MASK) == NVREG_XMITCTL_MGMT_SEMA_FREE)) { + np->mgmt_sema = 1; return 1; + } else udelay(50); } @@ -5213,6 +5225,51 @@ static int nv_mgmt_acquire_sema(struct net_device *dev) return 0; } +static void nv_mgmt_release_sema(struct net_device *dev) +{ + struct fe_priv *np = netdev_priv(dev); + u8 __iomem *base = get_hwbase(dev); + u32 tx_ctrl; + + if (np->driver_data & DEV_HAS_MGMT_UNIT) { + if (np->mgmt_sema) { + tx_ctrl = readl(base + NvRegTransmitterControl); + tx_ctrl &= ~NVREG_XMITCTL_HOST_SEMA_ACQ; + writel(tx_ctrl, base + NvRegTransmitterControl); + } + } +} + + +static int nv_mgmt_get_version(struct net_device *dev) +{ + struct fe_priv *np = netdev_priv(dev); + u8 __iomem *base = get_hwbase(dev); + u32 data_ready = readl(base + NvRegTransmitterControl); + u32 data_ready2 = 0; + unsigned long start; + int ready = 0; + + writel(NVREG_MGMTUNITGETVERSION, base + NvRegMgmtUnitGetVersion); + writel(data_ready ^ NVREG_XMITCTL_DATA_START, base + NvRegTransmitterControl); + start = jiffies; + while (time_before(jiffies, start + 5*HZ)) { + data_ready2 = readl(base + NvRegTransmitterControl); + if ((data_ready & NVREG_XMITCTL_DATA_READY) != (data_ready2 & NVREG_XMITCTL_DATA_READY)) { + ready = 1; + break; + } + schedule_timeout_uninterruptible(1); + } + + if (!ready || (data_ready2 & NVREG_XMITCTL_DATA_ERROR)) + return 0; + + np->mgmt_version = readl(base + NvRegMgmtUnitVersion) & NVREG_MGMTUNITVERSION; + + return 1; +} + static int nv_open(struct net_device *dev) { struct fe_priv *np = netdev_priv(dev); @@ -5784,19 +5841,26 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i if (id->driver_data & DEV_HAS_MGMT_UNIT) { /* management unit running on the mac? */ - if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) { - np->mac_in_use = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST; - dprintk(KERN_INFO "%s: mgmt unit is running. mac in use %x.\n", pci_name(pci_dev), np->mac_in_use); - if (nv_mgmt_acquire_sema(dev)) { - /* management unit setup the phy already? */ - if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) == - NVREG_XMITCTL_SYNC_PHY_INIT) { - /* phy is inited by mgmt unit */ - phyinitialized = 1; - dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", pci_name(pci_dev)); - } else { - /* we need to init the phy */ - } + if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST) && + (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) && + nv_mgmt_acquire_sema(dev) && + nv_mgmt_get_version(dev)) { + np->mac_in_use = 1; + if (np->mgmt_version > 0) { + np->mac_in_use = readl(base + NvRegMgmtUnitControl) & NVREG_MGMTUNITCONTROL_INUSE; + } + dprintk(KERN_INFO "%s: mgmt unit is running. mac in use %x.\n", + pci_name(pci_dev), np->mac_in_use); + /* management unit setup the phy already? */ + if (np->mac_in_use && + ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) == + NVREG_XMITCTL_SYNC_PHY_INIT)) { + /* phy is inited by mgmt unit */ + phyinitialized = 1; + dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", + pci_name(pci_dev)); + } else { + /* we need to init the phy */ } } } @@ -5958,6 +6022,8 @@ static void __devexit nv_remove(struct pci_dev *pci_dev) /* restore any phy related changes */ nv_restore_phy(dev); + nv_mgmt_release_sema(dev); + /* free all structures */ free_rings(dev); iounmap(get_hwbase(dev)); |