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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-04 11:47:58 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-04 11:47:58 -0700 |
commit | 6ba74014c1ab0e37af7de6f64b4eccbbae3cb9e7 (patch) | |
tree | 8f3892fc44f1e403675a6d7e88fda5c70e56ee4c /drivers/net/fec.c | |
parent | 5abd9ccced7a726c817dd6b5b96bc933859138d1 (diff) | |
parent | 3ff1c25927e3af61c6bf0e4ed959504058ae4565 (diff) | |
download | linux-6ba74014c1ab0e37af7de6f64b4eccbbae3cb9e7.tar.gz linux-6ba74014c1ab0e37af7de6f64b4eccbbae3cb9e7.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1443 commits)
phy/marvell: add 88ec048 support
igb: Program MDICNFG register prior to PHY init
e1000e: correct MAC-PHY interconnect register offset for 82579
hso: Add new product ID
can: Add driver for esd CAN-USB/2 device
l2tp: fix export of header file for userspace
can-raw: Fix skb_orphan_try handling
Revert "net: remove zap_completion_queue"
net: cleanup inclusion
phy/marvell: add 88e1121 interface mode support
u32: negative offset fix
net: Fix a typo from "dev" to "ndev"
igb: Use irq_synchronize per vector when using MSI-X
ixgbevf: fix null pointer dereference due to filter being set for VLAN 0
e1000e: Fix irq_synchronize in MSI-X case
e1000e: register pm_qos request on hardware activation
ip_fragment: fix subtracting PPPOE_SES_HLEN from mtu twice
net: Add getsockopt support for TCP thin-streams
cxgb4: update driver version
cxgb4: add new PCI IDs
...
Manually fix up conflicts in:
- drivers/net/e1000e/netdev.c: due to pm_qos registration
infrastructure changes
- drivers/net/phy/marvell.c: conflict between adding 88ec048 support
and cleaning up the IDs
- drivers/net/wireless/ipw2x00/ipw2100.c: trivial ipw2100_pm_qos_req
conflict (registration change vs marking it static)
Diffstat (limited to 'drivers/net/fec.c')
-rw-r--r-- | drivers/net/fec.c | 110 |
1 files changed, 56 insertions, 54 deletions
diff --git a/drivers/net/fec.c b/drivers/net/fec.c index edfff92a6d8e..768b840aeb6b 100644 --- a/drivers/net/fec.c +++ b/drivers/net/fec.c @@ -118,6 +118,8 @@ static unsigned char fec_mac_default[] = { #define FEC_ENET_MII ((uint)0x00800000) /* MII interrupt */ #define FEC_ENET_EBERR ((uint)0x00400000) /* SDMA bus error */ +#define FEC_DEFAULT_IMASK (FEC_ENET_TXF | FEC_ENET_RXF | FEC_ENET_MII) + /* The FEC stores dest/src/type, data, and checksum for receive packets. */ #define PKT_MAXBUF_SIZE 1518 @@ -187,6 +189,7 @@ struct fec_enet_private { int index; int link; int full_duplex; + struct completion mdio_done; }; static irqreturn_t fec_enet_interrupt(int irq, void * dev_id); @@ -205,12 +208,12 @@ static void fec_stop(struct net_device *dev); #define FEC_MMFR_TA (2 << 16) #define FEC_MMFR_DATA(v) (v & 0xffff) -#define FEC_MII_TIMEOUT 10000 +#define FEC_MII_TIMEOUT 1000 /* us */ /* Transmitter timeout */ #define TX_TIMEOUT (2 * HZ) -static int +static netdev_tx_t fec_enet_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct fec_enet_private *fep = netdev_priv(dev); @@ -334,6 +337,11 @@ fec_enet_interrupt(int irq, void * dev_id) ret = IRQ_HANDLED; fec_enet_tx(dev); } + + if (int_events & FEC_ENET_MII) { + ret = IRQ_HANDLED; + complete(&fep->mdio_done); + } } while (int_events); return ret; @@ -608,18 +616,13 @@ spin_unlock: phy_print_status(phy_dev); } -/* - * NOTE: a MII transaction is during around 25 us, so polling it... - */ static int fec_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum) { struct fec_enet_private *fep = bus->priv; - int timeout = FEC_MII_TIMEOUT; + unsigned long time_left; fep->mii_timeout = 0; - - /* clear MII end of transfer bit*/ - writel(FEC_ENET_MII, fep->hwp + FEC_IEVENT); + init_completion(&fep->mdio_done); /* start a read op */ writel(FEC_MMFR_ST | FEC_MMFR_OP_READ | @@ -627,13 +630,12 @@ static int fec_enet_mdio_read(struct mii_bus *bus, int mii_id, int regnum) FEC_MMFR_TA, fep->hwp + FEC_MII_DATA); /* wait for end of transfer */ - while (!(readl(fep->hwp + FEC_IEVENT) & FEC_ENET_MII)) { - cpu_relax(); - if (timeout-- < 0) { - fep->mii_timeout = 1; - printk(KERN_ERR "FEC: MDIO read timeout\n"); - return -ETIMEDOUT; - } + time_left = wait_for_completion_timeout(&fep->mdio_done, + usecs_to_jiffies(FEC_MII_TIMEOUT)); + if (time_left == 0) { + fep->mii_timeout = 1; + printk(KERN_ERR "FEC: MDIO read timeout\n"); + return -ETIMEDOUT; } /* return value */ @@ -644,12 +646,10 @@ static int fec_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value) { struct fec_enet_private *fep = bus->priv; - int timeout = FEC_MII_TIMEOUT; + unsigned long time_left; fep->mii_timeout = 0; - - /* clear MII end of transfer bit*/ - writel(FEC_ENET_MII, fep->hwp + FEC_IEVENT); + init_completion(&fep->mdio_done); /* start a read op */ writel(FEC_MMFR_ST | FEC_MMFR_OP_READ | @@ -658,13 +658,12 @@ static int fec_enet_mdio_write(struct mii_bus *bus, int mii_id, int regnum, fep->hwp + FEC_MII_DATA); /* wait for end of transfer */ - while (!(readl(fep->hwp + FEC_IEVENT) & FEC_ENET_MII)) { - cpu_relax(); - if (timeout-- < 0) { - fep->mii_timeout = 1; - printk(KERN_ERR "FEC: MDIO write timeout\n"); - return -ETIMEDOUT; - } + time_left = wait_for_completion_timeout(&fep->mdio_done, + usecs_to_jiffies(FEC_MII_TIMEOUT)); + if (time_left == 0) { + fep->mii_timeout = 1; + printk(KERN_ERR "FEC: MDIO write timeout\n"); + return -ETIMEDOUT; } return 0; @@ -679,30 +678,24 @@ static int fec_enet_mii_probe(struct net_device *dev) { struct fec_enet_private *fep = netdev_priv(dev); struct phy_device *phy_dev = NULL; - int phy_addr; + int ret; fep->phy_dev = NULL; /* find the first phy */ - for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) { - if (fep->mii_bus->phy_map[phy_addr]) { - phy_dev = fep->mii_bus->phy_map[phy_addr]; - break; - } - } - + phy_dev = phy_find_first(fep->mii_bus); if (!phy_dev) { printk(KERN_ERR "%s: no PHY found\n", dev->name); return -ENODEV; } /* attach the mac to the phy */ - phy_dev = phy_connect(dev, dev_name(&phy_dev->dev), + ret = phy_connect_direct(dev, phy_dev, &fec_enet_adjust_link, 0, PHY_INTERFACE_MODE_MII); - if (IS_ERR(phy_dev)) { + if (ret) { printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name); - return PTR_ERR(phy_dev); + return ret; } /* mask with MAC supported features */ @@ -834,7 +827,7 @@ static int fec_enet_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) if (!phydev) return -ENODEV; - return phy_mii_ioctl(phydev, if_mii(rq), cmd); + return phy_mii_ioctl(phydev, rq, cmd); } static void fec_enet_free_buffers(struct net_device *dev) @@ -1222,7 +1215,7 @@ fec_restart(struct net_device *dev, int duplex) writel(0, fep->hwp + FEC_R_DES_ACTIVE); /* Enable interrupts we wish to service */ - writel(FEC_ENET_TXF | FEC_ENET_RXF, fep->hwp + FEC_IMASK); + writel(FEC_DEFAULT_IMASK, fep->hwp + FEC_IMASK); } static void @@ -1241,11 +1234,8 @@ fec_stop(struct net_device *dev) /* Whack a reset. We should wait for this. */ writel(1, fep->hwp + FEC_ECNTRL); udelay(10); - - /* Clear outstanding MII command interrupts. */ - writel(FEC_ENET_MII, fep->hwp + FEC_IEVENT); - writel(fep->phy_speed, fep->hwp + FEC_MII_SPEED); + writel(FEC_DEFAULT_IMASK, fep->hwp + FEC_IMASK); } static int __devinit @@ -1365,10 +1355,11 @@ fec_drv_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM static int -fec_suspend(struct platform_device *dev, pm_message_t state) +fec_suspend(struct device *dev) { - struct net_device *ndev = platform_get_drvdata(dev); + struct net_device *ndev = dev_get_drvdata(dev); struct fec_enet_private *fep; if (ndev) { @@ -1381,9 +1372,9 @@ fec_suspend(struct platform_device *dev, pm_message_t state) } static int -fec_resume(struct platform_device *dev) +fec_resume(struct device *dev) { - struct net_device *ndev = platform_get_drvdata(dev); + struct net_device *ndev = dev_get_drvdata(dev); struct fec_enet_private *fep; if (ndev) { @@ -1395,15 +1386,26 @@ fec_resume(struct platform_device *dev) return 0; } +static const struct dev_pm_ops fec_pm_ops = { + .suspend = fec_suspend, + .resume = fec_resume, + .freeze = fec_suspend, + .thaw = fec_resume, + .poweroff = fec_suspend, + .restore = fec_resume, +}; +#endif + static struct platform_driver fec_driver = { .driver = { - .name = "fec", - .owner = THIS_MODULE, + .name = "fec", + .owner = THIS_MODULE, +#ifdef CONFIG_PM + .pm = &fec_pm_ops, +#endif }, - .probe = fec_probe, - .remove = __devexit_p(fec_drv_remove), - .suspend = fec_suspend, - .resume = fec_resume, + .probe = fec_probe, + .remove = __devexit_p(fec_drv_remove), }; static int __init |