diff options
| -rw-r--r-- | drivers/net/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/net/tc35815.c | 1052 |
2 files changed, 302 insertions, 752 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index da30a31e66f9..45c3a208d93f 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -1438,7 +1438,7 @@ config CS89x0 config TC35815 tristate "TOSHIBA TC35815 Ethernet support" depends on NET_PCI && PCI && MIPS - select MII + select PHYLIB config EEPRO100 tristate "EtherExpressPro/100 support (eepro100, original Becker driver)" diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c index 60eff784d5e4..59f783eb98b9 100644 --- a/drivers/net/tc35815.c +++ b/drivers/net/tc35815.c @@ -23,9 +23,9 @@ */ #ifdef TC35815_NAPI -#define DRV_VERSION "1.36-NAPI" +#define DRV_VERSION "1.37-NAPI" #else -#define DRV_VERSION "1.36" +#define DRV_VERSION "1.37" #endif static const char *version = "tc35815.c:v" DRV_VERSION "\n"; #define MODNAME "tc35815" @@ -47,8 +47,8 @@ static const char *version = "tc35815.c:v" DRV_VERSION "\n"; #include <linux/skbuff.h> #include <linux/delay.h> #include <linux/pci.h> -#include <linux/mii.h> -#include <linux/ethtool.h> +#include <linux/phy.h> +#include <linux/workqueue.h> #include <linux/platform_device.h> #include <asm/io.h> #include <asm/byteorder.h> @@ -60,16 +60,16 @@ static const char *version = "tc35815.c:v" DRV_VERSION "\n"; #define WORKAROUND_100HALF_PROMISC /* #define TC35815_USE_PACKEDBUFFER */ -typedef enum { +enum tc35815_chiptype { TC35815CF = 0, TC35815_NWU, TC35815_TX4939, -} board_t; +}; -/* indexed by board_t, above */ +/* indexed by tc35815_chiptype, above */ static const struct { const char *name; -} board_info[] __devinitdata = { +} chip_info[] __devinitdata = { { "TOSHIBA TC35815CF 10/100BaseTX" }, { "TOSHIBA TC35815 with Wake on LAN" }, { "TOSHIBA TC35815/TX4939" }, @@ -87,7 +87,6 @@ MODULE_DEVICE_TABLE (pci, tc35815_pci_tbl); static struct tc35815_options { int speed; int duplex; - int doforce; } options; /* @@ -348,7 +347,7 @@ struct BDesc { Int_STargAbtEn | \ Int_BLExEn | Int_FDAExEn) /* maybe 0xb7f*/ #define DMA_CTL_CMD DMA_BURST_SIZE -#define HAVE_DMA_RXALIGN(lp) likely((lp)->boardtype != TC35815CF) +#define HAVE_DMA_RXALIGN(lp) likely((lp)->chiptype != TC35815CF) /* Tuning parameters */ #define DMA_BURST_SIZE 32 @@ -401,16 +400,7 @@ struct FrFD { #define TC35815_TX_TIMEOUT msecs_to_jiffies(400) -/* Timer state engine. */ -enum tc35815_timer_state { - arbwait = 0, /* Waiting for auto negotiation to complete. */ - lupwait = 1, /* Auto-neg complete, awaiting link-up status. */ - ltrywait = 2, /* Forcing try of all modes, from fastest to slowest. */ - asleep = 3, /* Time inactive. */ - lcheck = 4, /* Check link status. */ -}; - -/* Information that need to be kept for each board. */ +/* Information that need to be kept for each controller. */ struct tc35815_local { struct pci_dev *pci_dev; @@ -432,12 +422,12 @@ struct tc35815_local { */ spinlock_t lock; - int phy_addr; - int fullduplex; - unsigned short saved_lpa; - struct timer_list timer; - enum tc35815_timer_state timer_state; /* State of auto-neg timer. */ - unsigned int timer_ticks; /* Number of clicks at each state */ + struct mii_bus mii_bus; + struct phy_device *phy_dev; + int duplex; + int speed; + int link; + struct work_struct restart_work; /* * Transmitting: Batch Mode. @@ -475,10 +465,8 @@ struct tc35815_local { dma_addr_t skb_dma; } tx_skbs[TX_FD_NUM], rx_skbs[RX_BUF_NUM]; #endif - struct mii_if_info mii; - unsigned short mii_id[2]; u32 msg_enable; - board_t boardtype; + enum tc35815_chiptype chiptype; }; static inline dma_addr_t fd_virt_to_bus(struct tc35815_local *lp, void *virt) @@ -586,19 +574,222 @@ static const struct ethtool_ops tc35815_ethtool_ops; /* Example routines you must write ;->. */ static void tc35815_chip_reset(struct net_device *dev); static void tc35815_chip_init(struct net_device *dev); -static void tc35815_find_phy(struct net_device *dev); -static void tc35815_phy_chip_init(struct net_device *dev); #ifdef DEBUG static void panic_queues(struct net_device *dev); #endif -static void tc35815_timer(unsigned long data); -static void tc35815_start_auto_negotiation(struct net_device *dev, - struct ethtool_cmd *ep); -static int tc_mdio_read(struct net_device *dev, int phy_id, int location); -static void tc_mdio_write(struct net_device *dev, int phy_id, int location, - int val); +static void tc35815_restart_work(struct work_struct *work); + +static int tc_mdio_read(struct mii_bus *bus, int mii_id, int regnum) +{ + struct net_device *dev = bus->priv; + struct tc35815_regs __iomem *tr = + (struct tc35815_regs __iomem *)dev->base_addr; + unsigned long timeout = jiffies + 10; + + tc_writel(MD_CA_Busy | (mii_id << 5) | (regnum & 0x1f), &tr->MD_CA); + while (tc_readl(&tr->MD_CA) & MD_CA_Busy) { + if (time_after(jiffies, timeout)) + return -EIO; + cpu_relax(); + } + return tc_readl(&tr->MD_Data) & 0xffff; +} + +static int tc_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 val) +{ + struct net_device *dev = bus->priv; + struct tc35815_regs __iomem *tr = + (struct tc35815_regs __iomem *)dev->base_addr; + unsigned long timeout = jiffies + 10; + + tc_writel(val, &tr->MD_Data); + tc_writel(MD_CA_Busy | MD_CA_Wr | (mii_id << 5) | (regnum & 0x1f), + &tr->MD_CA); + while (tc_readl(&tr->MD_CA) & MD_CA_Busy) { + if (time_after(jiffies, timeout)) + return -EIO; + cpu_relax(); + } + return 0; +} + +static void tc_handle_link_change(struct net_device *dev) +{ + struct tc35815_local *lp = netdev_priv(dev); + struct phy_device *phydev = lp->phy_dev; + unsigned long flags; + int status_change = 0; + + spin_lock_irqsave(&lp->lock, flags); + if (phydev->link && + (lp->speed != phydev->speed || lp->duplex != phydev->duplex)) { + struct tc35815_regs __iomem *tr = + (struct tc35815_regs __iomem *)dev->base_addr; + u32 reg; + + reg = tc_readl(&tr->MAC_Ctl); + reg |= MAC_HaltReq; + tc_writel(reg, &tr->MAC_Ctl); + if (phydev->duplex == DUPLEX_FULL) + reg |= MAC_FullDup; + else + reg &= ~MAC_FullDup; + tc_writel(reg, &tr->MAC_Ctl); + reg &= ~MAC_HaltReq; + tc_writel(reg, &tr->MAC_Ctl); + + /* + * TX4939 PCFG.SPEEDn bit will be changed on + * NETDEV_CHANGE event. + */ + +#if !defined(NO_CHECK_CARRIER) && defined(WORKAROUND_LOSTCAR) + /* + * WORKAROUND: enable LostCrS only if half duplex + * operation. + * (TX4939 does not have EnLCarr) + */ + if (phydev->duplex == DUPLEX_HALF && + lp->chiptype != TC35815_TX4939) + tc_writel(tc_readl(&tr->Tx_Ctl) | Tx_EnLCarr, + &tr->Tx_Ctl); +#endif + + lp->speed = phydev->speed; + lp->duplex = phydev->duplex; + status_change = 1; + } + + if (phydev->link != lp->link) { + if (phydev->link) { +#ifdef WORKAROUND_100HALF_PROMISC + /* delayed promiscuous enabling */ + if (dev->flags & IFF_PROMISC) + tc35815_set_multicast_list(dev); +#endif + netif_schedule(dev); + } else { + lp->speed = 0; + lp->duplex = -1; + } + lp->link = phydev->link; + + status_change = 1; + } + spin_unlock_irqrestore(&lp->lock, flags); + + if (status_change && netif_msg_link(lp)) { + phy_print_status(phydev); +#ifdef DEBUG + printk(KERN_DEBUG + "%s: MII BMCR %04x BMSR %04x LPA %04x\n", + dev->name, + phy_read(phydev, MII_BMCR), + phy_read(phydev, MII_BMSR), + phy_read(phydev, MII_LPA)); +#endif + } +} + +static int tc_mii_probe(struct net_device *dev) +{ + struct tc35815_local *lp = netdev_priv(dev); + struct phy_device *phydev = NULL; + int phy_addr; + u32 dropmask; + + /* find the first phy */ + for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) { + if (lp->mii_bus.phy_map[phy_addr]) { + if (phydev) { + printk(KERN_ERR "%s: multiple PHYs found\n", + dev->name); + return -EINVAL; + } + phydev = lp->mii_bus.phy_map[phy_addr]; + break; + } + } + + if (!phydev) { + printk(KERN_ERR "%s: no PHY found\n", dev->name); + return -ENODEV; + } + + /* attach the mac to the phy */ + phydev = phy_connect(dev, phydev->dev.bus_id, + &tc_handle_link_change, 0, + lp->chiptype == TC35815_TX4939 ? + PHY_INTERFACE_MODE_RMII : PHY_INTERFACE_MODE_MII); + if (IS_ERR(phydev)) { + printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name); + return PTR_ERR(phydev); + } + printk(KERN_INFO "%s: attached PHY driver [%s] " + "(mii_bus:phy_addr=%s, id=%x)\n", + dev->name, phydev->drv->name, phydev->dev.bus_id, + phydev->phy_id); + + /* mask with MAC supported features */ + phydev->supported &= PHY_BASIC_FEATURES; + dropmask = 0; + if (options.speed == 10) + dropmask |= SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full; + else if (options.speed == 100) + dropmask |= SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full; + if (options.duplex == 1) + dropmask |= SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Full; + else if (options.duplex == 2) + dropmask |= SUPPORTED_10baseT_Half | SUPPORTED_100baseT_Half; + phydev->supported &= ~dropmask; + phydev->advertising = phydev->supported; + + lp->link = 0; + lp->speed = 0; + lp->duplex = -1; + lp->phy_dev = phydev; + + return 0; +} + +static int tc_mii_init(struct net_device *dev) +{ + struct tc35815_local *lp = netdev_priv(dev); + int err; + int i; + + lp->mii_bus.name = "tc35815_mii_bus"; + lp->mii_bus.read = tc_mdio_read; + lp->mii_bus.write = tc_mdio_write; + lp->mii_bus.id = (lp->pci_dev->bus->number << 8) | lp->pci_dev->devfn; + lp->mii_bus.priv = dev; + lp->mii_bus.dev = &lp->pci_dev->dev; + lp->mii_bus.irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL); + if (!lp->mii_bus.irq) { + err = -ENOMEM; + goto err_out; + } + + for (i = 0; i < PHY_MAX_ADDR; i++) + lp->mii_bus.irq[i] = PHY_POLL; + + err = mdiobus_register(&lp->mii_bus); + if (err) + goto err_out_free_mdio_irq; + err = tc_mii_probe(dev); + if (err) + goto err_out_unregister_bus; + return 0; + +err_out_unregister_bus: + mdiobus_unregister(&lp->mii_bus); +err_out_free_mdio_irq: + kfree(lp->mii_bus.irq); +err_out: + return err; +} #ifdef CONFIG_CPU_TX49XX /* @@ -669,8 +860,8 @@ static int __devinit tc35815_init_one (struct pci_dev *pdev, if (!printed_version++) { printk(version); dev_printk(KERN_DEBUG, &pdev->dev, - "speed:%d duplex:%d doforce:%d\n", - options.speed, options.duplex, options.doforce); + "speed:%d duplex:%d\n", + options.speed, options.duplex); } if (!pdev->irq) { @@ -718,9 +909,10 @@ static int __devinit tc35815_init_one (struct pci_dev *pdev, dev->irq = pdev->irq; dev->base_addr = (unsigned long) ioaddr; + INIT_WORK(&lp->restart_work, tc35815_restart_work); spin_lock_init(&lp->lock); lp->pci_dev = pdev; - lp->boardtype = ent->driver_data; + lp->chiptype = ent->driver_data; lp->msg_enable = NETIF_MSG_TX_ERR | NETIF_MSG_HW | NETIF_MSG_DRV | NETIF_MSG_LINK; pci_set_drvdata(pdev, dev); @@ -741,24 +933,19 @@ static int __devinit tc35815_init_one (struct pci_dev *pdev, memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); printk(KERN_INFO "%s: %s at 0x%lx, %s, IRQ %d\n", dev->name, - board_info[ent->driver_data].name, + chip_info[ent->driver_data].name, dev->base_addr, print_mac(mac, dev->dev_addr), dev->irq); - setup_timer(&lp->timer, tc35815_timer, (unsigned long) dev); - lp->mii.dev = dev; - lp->mii.mdio_read = tc_mdio_read; - lp->mii.mdio_write = tc_mdio_write; - lp->mii.phy_id_mask = 0x1f; - lp->mii.reg_num_mask = 0x1f; - tc35815_find_phy(dev); - lp->mii.phy_id = lp->phy_addr; - lp->mii.full_duplex = 0; - lp->mii.force_media = 0; + rc = tc_mii_init(dev); + if (rc) + goto err_out_unregister; return 0; +err_out_unregister: + unregister_netdev(dev); err_out: free_netdev (dev); return rc; @@ -768,7 +955,11 @@ err_out: static void __devexit tc35815_remove_one (struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata (pdev); + struct tc35815_local *lp = netdev_priv(dev); + phy_disconnect(lp->phy_dev); + mdiobus_unregister(&lp->mii_bus); + kfree(lp->mii_bus.irq); unregister_netdev (dev); free_netdev (dev); @@ -1098,20 +1289,14 @@ static int tc35815_tx_full(struct net_device *dev) static void tc35815_restart(struct net_device *dev) { struct tc35815_local *lp = netdev_priv(dev); - int pid = lp->phy_addr; - int do_phy_reset = 1; - del_timer(&lp->timer); /* Kill if running */ - if (lp->mii_id[0] == 0x0016 && (lp->mii_id[1] & 0xfc00) == 0xf800) { - /* Resetting PHY cause problem on some chip... (SEEQ 80221) */ - do_phy_reset = 0; - } - if (do_phy_reset) { + if (lp->phy_dev) { int timeout; - tc_mdio_write(dev, pid, MII_BMCR, BMCR_RESET); + + phy_write(lp->phy_dev, MII_BMCR, BMCR_RESET); timeout = 100; while (--timeout) { - if (!(tc_mdio_read(dev, pid, MII_BMCR) & BMCR_RESET)) + if (!(phy_read(lp->phy_dev, MII_BMCR) & BMCR_RESET)) break; udelay(1); } @@ -1119,45 +1304,53 @@ static void tc35815_restart(struct net_device *dev) printk(KERN_ERR "%s: BMCR reset failed.\n", dev->name); } + spin_lock_irq(&lp->lock); tc35815_chip_reset(dev); tc35815_clear_queues(dev); tc35815_chip_init(dev); /* Reconfigure CAM again since tc35815_chip_init() initialize it. */ tc35815_set_multicast_list(dev); + spin_unlock_irq(&lp->lock); + + netif_wake_queue(dev); } -static void tc35815_tx_timeout(struct net_device *dev) +static void tc35815_restart_work(struct work_struct *work) +{ + struct tc35815_local *lp = + container_of(work, struct tc35815_local, restart_work); + struct net_device *dev = lp->dev; + + tc35815_restart(dev); +} + +static void tc35815_schedule_restart(struct net_device *dev) { struct tc35815_local *lp = netdev_priv(dev); struct tc35815_regs __iomem *tr = (struct tc35815_regs __iomem *)dev->base_addr; + /* disable interrupts */ + tc_writel(0, &tr->Int_En); + tc_writel(tc_readl(&tr->DMA_Ctl) | DMA_IntMask, &tr->DMA_Ctl); + schedule_work(&lp->restart_work); +} + +static void tc35815_tx_timeout(struct net_device *dev) +{ + struct tc35815_regs __iomem *tr = + (struct tc35815_regs __iomem *)dev->base_addr; + printk(KERN_WARNING "%s: transmit timed out, status %#x\n", dev->name, tc_readl(&tr->Tx_Stat)); /* Try to restart the adaptor. */ - spin_lock_irq(&lp->lock); - tc35815_restart(dev); - spin_unlock_irq(&lp->lock); - + tc35815_schedule_restart(dev); dev->stats.tx_errors++; - - /* If we have space available to accept new transmit - * requests, wake up the queueing layer. This would - * be the case if the chipset_init() call above just - * flushes out the tx queue and empties it. - * - * If instead, the tx queue is retained then the - * netif_wake_queue() call should be placed in the - * TX completion interrupt handler of the driver instead - * of here. - */ - if (!tc35815_tx_full(dev)) - netif_wake_queue(dev); } /* - * Open/initialize the board. This is called (in the current kernel) + * Open/initialize the controller. This is called (in the current kernel) * sometime after booting when the 'ifconfig' program is run. * * This routine should set everything up anew at each open, even @@ -1177,7 +1370,6 @@ tc35815_open(struct net_device *dev) return -EAGAIN; } - del_timer(&lp->timer); /* Kill if running */ tc35815_chip_reset(dev); if (tc35815_init_queues(dev) != 0) { @@ -1194,6 +1386,9 @@ tc35815_open(struct net_device *dev) tc35815_chip_init(dev); spin_unlock_irq(&lp->lock); + /* schedule a link state check */ + phy_start(lp->phy_dev); + /* We are now ready to accept transmit requeusts from * the queueing layer of the networking. */ @@ -1314,7 +1509,7 @@ static void tc35815_fatal_error_interrupt(struct net_device *dev, u32 status) panic("%s: Too many fatal errors.", dev->name); printk(KERN_WARNING "%s: Resetting ...\n", dev->name); /* Try to restart the adaptor. */ - tc35815_restart(dev); + tc35815_schedule_restart(dev); } #ifdef TC35815_NAPI @@ -1735,12 +1930,11 @@ tc35815_check_tx_stat(struct net_device *dev, int status) #ifndef NO_CHECK_CARRIER /* TX4939 does not have NCarr */ - if (lp->boardtype == TC35815_TX4939) + if (lp->chiptype == TC35815_TX4939) status &= ~Tx_NCarr; #ifdef WORKAROUND_LOSTCAR /* WORKAROUND: ignore LostCrS in full duplex operation */ - if ((lp->timer_state != asleep && lp->timer_state != lcheck) - || lp->fullduplex) + if (!lp->link || lp->duplex == DUPLEX_FULL) status &= ~Tx_NCarr; #endif #endif @@ -1905,10 +2099,11 @@ tc35815_close(struct net_device *dev) #ifdef TC35815_NAPI napi_disable(&lp->napi); #endif + if (lp->phy_dev) + phy_stop(lp->phy_dev); + cancel_work_sync(&lp->restart_work); /* Flush the Tx and disable Rx here. */ - - del_timer(&lp->timer); /* Kill if running */ tc35815_chip_reset(dev); free_irq(dev->irq, dev); @@ -1993,8 +2188,8 @@ tc35815_set_multicast_list(struct net_device *dev) /* With some (all?) 100MHalf HUB, controller will hang * if we enabled promiscuous mode before linkup... */ struct tc35815_local *lp = netdev_priv(dev); - int pid = lp->phy_addr; - if (!(tc_mdio_read(dev, pid, MII_BMSR) & BMSR_LSTATUS)) + + if (!lp->link) return; #endif /* Enable promiscuous mode */ @@ -2041,60 +2236,19 @@ static void tc35815_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo * static int tc35815_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct tc35815_local *lp = netdev_priv(dev); - spin_lock_irq(&lp->lock); - mii_ethtool_gset(&lp->mii, cmd); - spin_unlock_irq(&lp->lock); - return 0; -} - -static int tc35815_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct tc35815_local *lp = netdev_priv(dev); - int rc; -#if 1 /* use our negotiation method... */ - /* Verify the settings we care about. */ - if (cmd->autoneg != AUTONEG_ENABLE && - cmd->autoneg != AUTONEG_DISABLE) - return -EINVAL; - if (cmd->autoneg == AUTONEG_DISABLE && - ((cmd->speed != SPEED_100 && - cmd->speed != SPEED_10) || - (cmd->duplex != DUPLEX_HALF && - cmd->duplex != DUPLEX_FULL))) - return -EINVAL; - /* Ok, do it to it. */ - spin_lock_irq(&lp->lock); - del_timer(&lp->timer); - tc35815_start_auto_negotiation(dev, cmd); - spin_unlock_irq(&lp->lock); - rc = 0; -#else - spin_lock_irq(&lp->lock); - rc = mii_ethtool_sset(&lp->mii, cmd); - spin_unlock_irq(&lp->lock); -#endif - return rc; + if (!lp->phy_dev) + return -ENODEV; + return phy_ethtool_gset(lp->phy_dev, cmd); } -static int tc35815_nway_reset(struct net_device *dev) +static int tc35815_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct tc35815_local *lp = netdev_priv(dev); - int rc; - spin_lock_irq(&lp->lock); - rc = mii_nway_restart(&lp->mii); - spin_unlock_irq(&lp->lock); - return rc; -} -static u32 tc35815_get_link(struct net_device *dev) -{ - struct tc35815_local *lp = netdev_priv(dev); - int rc; - spin_lock_irq(&lp->lock); - rc = mii_link_ok(&lp->mii); - spin_unlock_irq(&lp->lock); - return rc; + if (!lp->phy_dev) + return -ENODEV; + return phy_ethtool_sset(lp->phy_dev, cmd); } static u32 tc35815_get_msglevel(struct net_device *dev) @@ -2148,8 +2302,7 @@ static const struct ethtool_ops tc35815_ethtool_ops = { .get_drvinfo = tc35815_get_drvinfo, .get_settings = tc35815_get_settings, .set_settings = tc35815_set_settings, - .nway_reset = tc35815_nway_reset, - .get_link = tc35815_get_link, + .get_link = ethtool_op_get_link, .get_msglevel = tc35815_get_msglevel, .set_msglevel = tc35815_set_msglevel, .get_strings = tc35815_get_strings, @@ -2160,610 +2313,12 @@ static const struct ethtool_ops tc35815_ethtool_ops = { static int tc35815_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) { struct tc35815_local *lp = netdev_priv(dev); - int rc; if (!netif_running(dev)) return -EINVAL; - - spin_lock_irq(&lp->lock); - rc = generic_mii_ioctl(&lp->mii, if_mii(rq), cmd, NULL); - spin_unlock_irq(&lp->lock); - - return rc; -} - -static int tc_mdio_read(struct net_device *dev, int phy_id, int location) -{ - struct tc35815_regs __iomem *tr = - (struct tc35815_regs __iomem *)dev->base_addr; - u32 data; - tc_writel(MD_CA_Busy | (phy_id << 5) | location, &tr->MD_CA); - while (tc_readl(&tr->MD_CA) & MD_CA_Busy) - ; - data = tc_readl(&tr->MD_Data); - return data & 0xffff; -} - -static void tc_mdio_write(struct net_device *dev, int phy_id, int location, - int val) -{ - struct tc35815_regs __iomem *tr = - (struct tc35815_regs __iomem *)dev->base_addr; - tc_writel(val, &tr->MD_Data); - tc_writel(MD_CA_Busy | MD_CA_Wr | (phy_id << 5) | location, &tr->MD_CA); - while (tc_readl(&tr->MD_CA) & MD_CA_Busy) - ; -} - -/* Auto negotiation. The scheme is very simple. We have a timer routine - * that keeps watching the auto negotiation process as it progresses. - * The DP83840 is first told to start doing it's thing, we set up the time - * and place the timer state machine in it's initial state. - * - * Here the timer peeks at the DP83840 status registers at each click to see - * if the auto negotiation has completed, we assume here that the DP83840 PHY - * will time out at some point and just tell us what (didn't) happen. For - * complete coverage we only allow so many of the ticks at this level to run, - * when this has expired we print a warning message and try another strategy. - * This "other" strategy is to force the interface into various speed/duplex - * configurations and we stop when we see a link-up condition before the - * maximum number of "peek" ticks have occurred. - * - * Once a valid link status has been detected we configure the BigMAC and - * the rest of the Happy Meal to speak the most efficient protocol we could - * get a clean link for. The priority for link configurations, highest first - * is: - * 100 Base-T Full Duplex - * 100 Base-T Half Duplex - * 10 Base-T Full Duplex - * 10 Base-T Half Duplex - * - * We start a new timer now, after a successful auto negotiation status has - * been detected. This timer just waits for the link-up bit to get set in - * the BMCR of the DP83840. When this occurs we print a kernel log message - * describing the link type in use and the fact that it is up. - * - * If a fatal error of some sort is signalled and detected in the interrupt - * service routine, and the chip is reset, or the link is ifconfig'd down - * and then back up, this entire process repeats itself all over again. - */ -/* Note: Above comments are come from sunhme driver. */ - -static int tc35815_try_next_permutation(struct net_device *dev) -{ - struct tc35815_local *lp = netdev_priv(dev); - int pid = lp->phy_addr; - unsigned short bmcr; - - bmcr = tc_mdio_read(dev, pid, MII_BMCR); - - /* Downgrade from full to half duplex. Only possible via ethtool. */ - if (bmcr & BMCR_FULLDPLX) { - bmcr &= ~BMCR_FULLDPLX; - printk(KERN_DEBUG "%s: try next permutation (BMCR %x)\n", dev->name, bmcr); - tc_mdio_write(dev, pid, MII_BMCR, bmcr); - return 0; - } - - /* Downgrade from 100 to 10. */ - if (bmcr & BMCR_SPEED100) { - bmcr &= ~BMCR_SPEED100; - printk(KERN_DEBUG "%s: try next permutation (BMCR %x)\n", dev->name, bmcr); - tc_mdio_write(dev, pid, MII_BMCR, bmcr); - return 0; - } - - /* We've tried everything. */ - return -1; -} - -static void -tc35815_display_link_mode(struct net_device *dev) -{ - struct tc35815_local *lp = netdev_priv(dev); - int pid = lp->phy_addr; - unsigned short lpa, bmcr; - char *speed = "", *duplex = ""; - - lpa = tc_mdio_read(dev, pid, MII_LPA); - bmcr = tc_mdio_read(dev, pid, MII_BMCR); - if (options.speed ? (bmcr & BMCR_SPEED100) : (lpa & (LPA_100HALF | LPA_100FULL))) - speed = "100Mb/s"; - else - speed = "10Mb/s"; - if (options.duplex ? (bmcr & BMCR_FULLDPLX) : (lpa & (LPA_100FULL | LPA_10FULL))) - duplex = "Full Duplex"; - else - duplex = "Half Duplex"; - - if (netif_msg_link(lp)) - printk(KERN_INFO "%s: Link is up at %s, %s.\n", - dev->name, speed, duplex); - printk(KERN_DEBUG "%s: MII BMCR %04x BMSR %04x LPA %04x\n", - dev->name, - bmcr, tc_mdio_read(dev, pid, MII_BMSR), lpa); -} - -static void tc35815_display_forced_link_mode(struct net_device *dev) -{ - struct tc35815_local *lp = netdev_priv(dev); - int pid = lp->phy_addr; - unsigned short bmcr; - char *speed = "", *duplex = ""; - - bmcr = tc_mdio_read(dev, pid, MII_BMCR); - if (bmcr & BMCR_SPEED100) - speed = "100Mb/s"; - else - speed = "10Mb/s"; - if (bmcr & BMCR_FULLDPLX) - duplex = "Full Duplex.\n"; - else - duplex = "Half Duplex.\n"; - - if (netif_msg_link(lp)) - printk(KERN_INFO "%s: Link has been forced up at %s, %s", - dev->name, speed, duplex); -} - -static void tc35815_set_link_modes(struct net_device *dev) -{ - struct tc35815_local *lp = netdev_priv(dev); - struct tc35815_regs __iomem *tr = - (struct tc35815_regs __iomem *)dev->base_addr; - int pid = lp->phy_addr; - unsigned short bmcr, lpa; - int speed; - - if (lp->timer_state == arbwait) { - lpa = tc_mdio_read(dev, pid, MII_LPA); - bmcr = tc_mdio_read(dev, pid, MII_BMCR); - printk(KERN_DEBUG "%s: MII BMCR %04x BMSR %04x LPA %04x\n", - dev->name, - bmcr, tc_mdio_read(dev, pid, MII_BMSR), lpa); - if (!(lpa & (LPA_10HALF | LPA_10FULL | - LPA_100HALF | LPA_100FULL))) { - /* fall back to 10HALF */ - printk(KERN_INFO "%s: bad ability %04x - falling back to 10HD.\n", - dev->name, lpa); - lpa = LPA_10HALF; - } - if (options.duplex ? (bmcr & BMCR_FULLDPLX) : (lpa & (LPA_100FULL | LPA_10FULL))) - lp->fullduplex = 1; - else - lp->fullduplex = 0; - if (options.speed ? (bmcr & BMCR_SPEED100) : (lpa & (LPA_100HALF | LPA_100FULL))) - speed = 100; - else - speed = 10; - } else { - /* Forcing a link mode. */ - bmcr = tc_mdio_read(dev, pid, MII_BMCR); - if (bmcr & BMCR_FULLDPLX) - lp->fullduplex = 1; - else - lp->fullduplex = 0; - if (bmcr & BMCR_SPEED100) - speed = 100; - else - speed = 10; - } - - tc_writel(tc_readl(&tr->MAC_Ctl) | MAC_HaltReq, &tr->MAC_Ctl); - if (lp->fullduplex) { - tc_writel(tc_readl(&tr->MAC_Ctl) | MAC_FullDup, &tr->MAC_Ctl); - } else { - tc_writel(tc_readl(&tr->MAC_Ctl) & ~MAC_FullDup, &tr->MAC_Ctl); - } - tc_writel(tc_readl(&tr->MAC_Ctl) & ~MAC_HaltReq, &tr->MAC_Ctl); - - /* TX4939 PCFG.SPEEDn bit will be changed on NETDEV_CHANGE event. */ - -#ifndef NO_CHECK_CARRIER - /* TX4939 does not have EnLCarr */ - if (lp->boardtype != TC35815_TX4939) { -#ifdef WORKAROUND_LOSTCAR - /* WORKAROUND: enable LostCrS only if half duplex operation */ - if (!lp->fullduplex && lp->boardtype != TC35815_TX4939) - tc_writel(tc_readl(&tr->Tx_Ctl) | Tx_EnLCarr, &tr->Tx_Ctl); -#endif - } -#endif - lp->mii.full_duplex = lp->fullduplex; -} - -static void tc35815_timer(unsigned long data) -{ - struct net_device *dev = (struct net_device *)data; - struct tc35815_local *lp = netdev_priv(dev); - int pid = lp->phy_addr; - unsigned short bmsr, bmcr, lpa; - int restart_timer = 0; - - spin_lock_irq(&lp->lock); - - lp->timer_ticks++; - switch (lp->timer_state) { - case arbwait: - /* - * Only allow for 5 ticks, thats 10 seconds and much too - * long to wait for arbitration to complete. - */ - /* TC35815 need more times... */ - if (lp->timer_ticks >= 10) { - /* Enter force mode. */ - if (!options.doforce) { - printk(KERN_NOTICE "%s: Auto-Negotiation unsuccessful," - " cable probblem?\n", dev->name); - /* Try to restart the adaptor. */ - tc35815_restart(dev); - goto out; - } - printk(KERN_NOTICE "%s: Auto-Negotiation unsuccessful," - " trying force link mode\n", dev->name); - printk(KERN_DEBUG "%s: BMCR %x BMSR %x\n", dev->name, - tc_mdio_read(dev, pid, MII_BMCR), - tc_mdio_read(dev, pid, MII_BMSR)); - bmcr = BMCR_SPEED100; - tc_mdio_write(dev, pid, MII_BMCR, bmcr); - - /* - * OK, seems we need do disable the transceiver - * for the first tick to make sure we get an - * accurate link state at the second tick. - */ - - lp->timer_state = ltrywait; - lp->timer_ticks = 0; - restart_timer = 1; - } else { - /* Anything interesting happen? */ - bmsr = tc_mdio_read(dev, pid, MII_BMSR); - if (bmsr & BMSR_ANEGCOMPLETE) { - /* Just what we've been waiting for... */ - tc35815_set_link_modes(dev); - - /* - * Success, at least so far, advance our state - * engine. - */ - lp->timer_state = lupwait; - restart_timer = 1; - } else { - restart_timer = 1; - } - } - break; - - case lupwait: - /* - * Auto negotiation was successful and we are awaiting a - * link up status. I have decided to let this timer run - * forever until some sort of error is signalled, reporting - * a message to the user at 10 second intervals. - */ - bmsr = tc_mdio_read(dev, pid, MII_BMSR); - if (bmsr & BMSR_LSTATUS) { - /* - * Wheee, it's up, display the link mode in use and put - * the timer to sleep. - */ - tc35815_display_link_mode(dev); - netif_carrier_on(dev); -#ifdef WORKAROUND_100HALF_PROMISC - /* delayed promiscuous enabling */ - if (dev->flags & IFF_PROMISC) - tc35815_set_multicast_list(dev); -#endif -#if 1 - lp->saved_lpa = tc_mdio_read(dev, pid, MII_LPA); - lp->timer_state = lcheck; - restart_timer = 1; -#else - lp->timer_state = asleep; - restart_timer = 0; -#endif - } else { - if (lp->timer_ticks >= 10) { - printk(KERN_NOTICE "%s: Auto negotiation successful, link still " - "not completely up.\n", dev->name); - lp->timer_ticks = 0; - restart_timer = 1; - } else { - restart_timer = 1; - } - } - break; - - case ltrywait: - /* - * Making the timeout here too long can make it take - * annoyingly long to attempt all of the link mode - * permutations, but then again this is essentially - * error recovery code for the most part. - */ - bmsr = tc_mdio_read(dev, pid, MII_BMSR); - bmcr = tc_mdio_read(dev, pid, MII_BMCR); - if (lp->timer_ticks == 1) { - /* - * Re-enable transceiver, we'll re-enable the - * transceiver next tick, then check link state - * on the following tick. - */ - restart_timer = 1; - break; - } - if (lp->timer_ticks == 2) { - restart_timer = 1; - break; - } - if (bmsr & BMSR_LSTATUS) { - /* Force mode selection success. */ - tc35815_display_forced_link_mode(dev); - netif_carrier_on(dev); - tc35815_set_link_modes(dev); -#ifdef WORKAROUND_100HALF_PROMISC - /* delayed promiscuous enabling */ - if (dev->flags & IFF_PROMISC) - tc35815_set_multicast_list(dev); -#endif -#if 1 - lp->saved_lpa = tc_mdio_read(dev, pid, MII_LPA); - lp->timer_state = lcheck; - restart_timer = 1; -#else - lp->timer_state = asleep; - restart_timer = 0; -#endif - } else { - if (lp->timer_ticks >= 4) { /* 6 seconds or so... */ - int ret; - - ret = tc35815_try_next_permutation(dev); - if (ret == -1) { - /* - * Aieee, tried them all, reset the - * chip and try all over again. - */ - printk(KERN_NOTICE "%s: Link down, " - "cable problem?\n", - dev->name); - - /* Try to restart the adaptor. */ - tc35815_restart(dev); - goto out; - } - lp->timer_ticks = 0; - restart_timer = 1; - } else { - restart_timer = 1; - } - } - break; - - case lcheck: - bmcr = tc_mdio_read(dev, pid, MII_BMCR); - lpa = tc_mdio_read(dev, pid, MII_LPA); - if (bmcr & (BMCR_PDOWN | BMCR_ISOLATE | BMCR_RESET)) { - printk(KERN_ERR "%s: PHY down? (BMCR %x)\n", dev->name, - bmcr); - } else if ((lp->saved_lpa ^ lpa) & - (LPA_100FULL|LPA_100HALF|LPA_10FULL|LPA_10HALF)) { - printk(KERN_NOTICE "%s: link status changed" - " (BMCR %x LPA %x->%x)\n", dev->name, - bmcr, lp->saved_lpa, lpa); - } else { - /* go on */ - restart_timer = 1; - break; - } - /* Try to restart the adaptor. */ - tc35815_restart(dev); - goto out; - - case asleep: - default: - /* Can't happens.... */ - printk(KERN_ERR "%s: Aieee, link timer is asleep but we got " - "one anyways!\n", dev->name); - restart_timer = 0; - lp->timer_ticks = 0; - lp->timer_state = asleep; /* foo on you */ - break; - } - - if (restart_timer) { - lp->timer.expires = jiffies + msecs_to_jiffies(1200); - add_timer(&lp->timer); - } -out: - spin_unlock_irq(&lp->lock); -} - -static void tc35815_start_auto_negotiation(struct net_device *dev, - struct ethtool_cmd *ep) -{ - struct tc35815_local *lp = netdev_priv(dev); - int pid = lp->phy_addr; - unsigned short bmsr, bmcr, advertize; - int timeout; - - netif_carrier_off(dev); - bmsr = tc_mdio_read(dev, pid, MII_BMSR); - bmcr = tc_mdio_read(dev, pid, MII_BMCR); - advertize = tc_mdio_read(dev, pid, MII_ADVERTISE); - - if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) { - if (options.speed || options.duplex) { - /* Advertise only specified configuration. */ - advertize &= ~(ADVERTISE_10HALF | - ADVERTISE_10FULL | - ADVERTISE_100HALF | - ADVERTISE_100FULL); - if (options.speed != 10) { - if (options.duplex != 1) - advertize |= ADVERTISE_100FULL; - if (options.duplex != 2) - advertize |= ADVERTISE_100HALF; - } - if (options.speed != 100) { - if (options.duplex != 1) - advertize |= ADVERTISE_10FULL; - if (options.duplex != 2) - advertize |= ADVERTISE_10HALF; - } - if (options.speed == 100) - bmcr |= BMCR_SPEED100; - else if (options.speed == 10) - bmcr &= ~BMCR_SPEED100; - if (options.duplex == 2) - bmcr |= BMCR_FULLDPLX; - else if (options.duplex == 1) - bmcr &= ~BMCR_FULLDPLX; - } else { - /* Advertise everything we can support. */ - if (bmsr & BMSR_10HALF) - advertize |= ADVERTISE_10HALF; - else - advertize &= ~ADVERTISE_10HALF; - if (bmsr & BMSR_10FULL) - advertize |= ADVERTISE_10FULL; - else - advertize &= ~ADVERTISE_10FULL; - if (bmsr & BMSR_100HALF) - advertize |= ADVERTISE_100HALF; - else - advertize &= ~ADVERTISE_100HALF; - if (bmsr & BMSR_100FULL) - advertize |= ADVERTISE_100FULL; - else - advertize &= ~ADVERTISE_100FULL; - } - - tc_mdio_write(dev, pid, MII_ADVERTISE, advertize); - - /* Enable Auto-Negotiation, this is usually on already... */ - bmcr |= BMCR_ANENABLE; - tc_mdio_write(dev, pid, MII_BMCR, bmcr); - - /* Restart it to make sure it is going. */ - bmcr |= BMCR_ANRESTART; - tc_mdio_write(dev, pid, MII_BMCR, bmcr); - printk(KERN_DEBUG "%s: ADVERTISE %x BMCR %x\n", dev->name, advertize, bmcr); - - /* BMCR_ANRESTART self clears when the process has begun. */ - timeout = 64; /* More than enough. */ - while (--timeout) { - bmcr = tc_mdio_read(dev, pid, MII_BMCR); - if (!(bmcr & BMCR_ANRESTART)) - break; /* got it. */ - udelay(10); - } - if (!timeout) { - printk(KERN_ERR "%s: TC35815 would not start auto " - "negotiation BMCR=0x%04x\n", - dev->name, bmcr); - printk(KERN_NOTICE "%s: Performing force link " - "detection.\n", dev->name); - goto force_link; - } else { - printk(KERN_DEBUG "%s: auto negotiation started.\n", dev->name); - lp->timer_state = arbwait; - } - } else { -force_link: - /* Force the link up, trying first a particular mode. - * Either we are here at the request of ethtool or - * because the Happy Meal would not start to autoneg. - */ - - /* Disable auto-negotiation in BMCR, enable the duplex and - * speed setting, init the timer state machine, and fire it off. - */ - if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) { - bmcr = BMCR_SPEED100; - } else { - if (ep->speed == SPEED_100) - bmcr = BMCR_SPEED100; - else - bmcr = 0; - if (ep->duplex == DUPLEX_FULL) - bmcr |= BMCR_FULLDPLX; - } - tc_mdio_write(dev, pid, MII_BMCR, bmcr); - - /* OK, seems we need do disable the transceiver for the first - * tick to make sure we get an accurate link state at the - * second tick. - */ - lp->timer_state = ltrywait; - } - - del_timer(&lp->timer); - lp->timer_ticks = 0; - lp->timer.expires = jiffies + msecs_to_jiffies(1200); - add_timer(&lp->timer); -} - -static void tc35815_find_phy(struct net_device *dev) -{ - struct tc35815_local *lp = netdev_priv(dev); - int pid = lp->phy_addr; - unsigned short id0; - - /* find MII phy */ - for (pid = 31; pid >= 0; pid--) { - id0 = tc_mdio_read(dev, pid, MII_BMSR); - if (id0 != 0xffff && id0 != 0x0000 && - (id0 & BMSR_RESV) != (0xffff & BMSR_RESV) /* paranoia? */ - ) { - lp->phy_addr = pid; - break; - } - } - if (pid < 0) { - printk(KERN_ERR "%s: No MII Phy found.\n", - dev->name); - lp->phy_addr = pid = 0; - } - - lp->mii_id[0] = tc_mdio_read(dev, pid, MII_PHYSID1); - lp->mii_id[1] = tc_mdio_read(dev, pid, MII_PHYSID2); - if (netif_msg_hw(lp)) - printk(KERN_INFO "%s: PHY(%02x) ID %04x %04x\n", dev->name, - pid, lp->mii_id[0], lp->mii_id[1]); -} - -static void tc35815_phy_chip_init(struct net_device *dev) -{ - struct tc35815_local *lp = netdev_priv(dev); - int pid = lp->phy_addr; - unsigned short bmcr; - struct ethtool_cmd ecmd, *ep; - - /* dis-isolate if needed. */ - bmcr = tc_mdio_read(dev, pid, MII_BMCR); - if (bmcr & BMCR_ISOLATE) { - int count = 32; - printk(KERN_DEBUG "%s: unisolating...", dev->name); - tc_mdio_write(dev, pid, MII_BMCR, bmcr & ~BMCR_ISOLATE); - while (--count) { - if (!(tc_mdio_read(dev, pid, MII_BMCR) & BMCR_ISOLATE)) - break; - udelay(20); - } - printk(" %s.\n", count ? "done" : "failed"); - } - - if (options.speed && options.duplex) { - ecmd.autoneg = AUTONEG_DISABLE; - ecmd.speed = options.speed == 10 ? SPEED_10 : SPEED_100; - ecmd.duplex = options.duplex == 1 ? DUPLEX_HALF : DUPLEX_FULL; - ep = &ecmd; - } else { - ep = NULL; - } - tc35815_start_auto_negotiation(dev, ep); + if (!lp->phy_dev) + return -ENODEV; + return phy_mii_ioctl(lp->phy_dev, if_mii(rq), cmd); } static void tc35815_chip_reset(struct net_device *dev) @@ -2815,8 +2370,6 @@ static void tc35815_chip_init(struct net_device *dev) (struct tc35815_regs __iomem *)dev->base_addr; unsigned long txctl = TX_CTL_CMD; - tc35815_phy_chip_init(dev); - /* load station address to CAM */ tc35815_set_cam_entry(dev, CAM_ENTRY_SOURCE, dev->dev_addr); @@ -2853,12 +2406,11 @@ static void tc35815_chip_init(struct net_device *dev) /* start MAC transmitter */ #ifndef NO_CHECK_CARRIER /* TX4939 does not have EnLCarr */ - if (lp->boardtype == TC35815_TX4939) + if (lp->chiptype == TC35815_TX4939) txctl &= ~Tx_EnLCarr; #ifdef WORKAROUND_LOSTCAR /* WORKAROUND: ignore LostCrS in full duplex operation */ - if ((lp->timer_state != asleep && lp->timer_state != lcheck) || - lp->fullduplex) + if (!lp->phy_dev || !lp->link || lp->duplex == DUPLEX_FULL) txctl &= ~Tx_EnLCarr; #endif #endif /* !NO_CHECK_CARRIER */ @@ -2879,8 +2431,9 @@ static int tc35815_suspend(struct pci_dev *pdev, pm_message_t state) if (!netif_running(dev)) return 0; netif_device_detach(dev); + if (lp->phy_dev) + phy_stop(lp->phy_dev); spin_lock_irqsave(&lp->lock, flags); - del_timer(&lp->timer); /* Kill if running */ tc35815_chip_reset(dev); spin_unlock_irqrestore(&lp->lock, flags); pci_set_power_state(pdev, PCI_D3hot); @@ -2891,15 +2444,14 @@ static int tc35815_resume(struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata(pdev); struct tc35815_local *lp = netdev_priv(dev); - unsigned long flags; pci_restore_state(pdev); if (!netif_running(dev)) return 0; pci_set_power_state(pdev, PCI_D0); - spin_lock_irqsave(&lp->lock, flags); tc35815_restart(dev); - spin_unlock_irqrestore(&lp->lock, flags); + if (lp->phy_dev) + phy_start(lp->phy_dev); netif_device_attach(dev); return 0; } @@ -2920,8 +2472,6 @@ module_param_named(speed, options.speed, int, 0); MODULE_PARM_DESC(speed, "0:auto, 10:10Mbps, 100:100Mbps"); module_param_named(duplex, options.duplex, int, 0); MODULE_PARM_DESC(duplex, "0:auto, 1:half, 2:full"); -module_param_named(doforce, options.doforce, int, 0); -MODULE_PARM_DESC(doforce, "try force link mode if auto-negotiation failed"); static int __init tc35815_init_module(void) { |