diff options
Diffstat (limited to 'drivers/net/pcnet32.c')
| -rw-r--r-- | drivers/net/pcnet32.c | 236 |
1 files changed, 212 insertions, 24 deletions
diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c index 7e900572eaf..1bc3f5bffb9 100644 --- a/drivers/net/pcnet32.c +++ b/drivers/net/pcnet32.c @@ -22,8 +22,8 @@ *************************************************************************/ #define DRV_NAME "pcnet32" -#define DRV_VERSION "1.31c" -#define DRV_RELDATE "01.Nov.2005" +#define DRV_VERSION "1.32" +#define DRV_RELDATE "18.Mar.2006" #define PFX DRV_NAME ": " static const char * const version = @@ -133,7 +133,7 @@ static const char pcnet32_gstrings_test[][ETH_GSTRING_LEN] = { }; #define PCNET32_TEST_LEN (sizeof(pcnet32_gstrings_test) / ETH_GSTRING_LEN) -#define PCNET32_NUM_REGS 168 +#define PCNET32_NUM_REGS 136 #define MAX_UNITS 8 /* More are supported, limit only on options */ static int options[MAX_UNITS]; @@ -265,6 +265,9 @@ static int homepna[MAX_UNITS]; * v1.31c 01 Nov 2005 Don Fry Allied Telesyn 2700/2701 FX are 100Mbit only. * Force 100Mbit FD if Auto (ASEL) is selected. * See Bugzilla 2669 and 4551. + * v1.32 18 Mar2006 Thomas Bogendoerfer and Don Fry added Multi-Phy + * handling for supporting AT-270x FTX cards with FX and Tx PHYs. + * Philippe Seewer assisted with auto negotiation and testing. */ @@ -375,6 +378,7 @@ struct pcnet32_private { unsigned int dirty_rx, dirty_tx; /* The ring entries to be free()ed. */ struct net_device_stats stats; char tx_full; + char phycount; /* number of phys found */ int options; unsigned int shared_irq:1, /* shared irq possible */ dxsuflo:1, /* disable transmit stop on uflo */ @@ -384,6 +388,9 @@ struct pcnet32_private { struct timer_list watchdog_timer; struct timer_list blink_timer; u32 msg_enable; /* debug message level */ + + /* each bit indicates an available PHY */ + u32 phymask; }; static void pcnet32_probe_vlbus(void); @@ -415,6 +422,7 @@ static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, static void pcnet32_purge_tx_ring(struct net_device *dev); static int pcnet32_alloc_ring(struct net_device *dev, char *name); static void pcnet32_free_ring(struct net_device *dev); +static void pcnet32_check_media(struct net_device *dev, int verbose); enum pci_flags_bit { @@ -936,9 +944,14 @@ static int pcnet32_phys_id(struct net_device *dev, u32 data) return 0; } +#define PCNET32_REGS_PER_PHY 32 +#define PCNET32_MAX_PHYS 32 static int pcnet32_get_regs_len(struct net_device *dev) { - return(PCNET32_NUM_REGS * sizeof(u16)); + struct pcnet32_private *lp = dev->priv; + int j = lp->phycount * PCNET32_REGS_PER_PHY; + + return((PCNET32_NUM_REGS + j) * sizeof(u16)); } static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, @@ -998,9 +1011,14 @@ static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, /* read mii phy registers */ if (lp->mii) { - for (i=0; i<32; i++) { - lp->a.write_bcr(ioaddr, 33, ((lp->mii_if.phy_id) << 5) | i); - *buff++ = lp->a.read_bcr(ioaddr, 34); + int j; + for (j=0; j<PCNET32_MAX_PHYS; j++) { + if (lp->phymask & (1 << j)) { + for (i=0; i<PCNET32_REGS_PER_PHY; i++) { + lp->a.write_bcr(ioaddr, 33, (j << 5) | i); + *buff++ = lp->a.read_bcr(ioaddr, 34); + } + } } } @@ -1009,10 +1027,6 @@ static void pcnet32_get_regs(struct net_device *dev, struct ethtool_regs *regs, a->write_csr(ioaddr, 5, 0x0000); } - i = buff - (u16 *)ptr; - for (; i < PCNET32_NUM_REGS; i++) - *buff++ = 0; - spin_unlock_irqrestore(&lp->lock, flags); } @@ -1185,7 +1199,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) if (cards_found < MAX_UNITS && homepna[cards_found]) media |= 1; /* switch to home wiring mode */ if (pcnet32_debug & NETIF_MSG_PROBE) - printk(KERN_DEBUG PFX "media set to %sMbit mode.\n", + printk(KERN_DEBUG PFX "media set to %sMbit mode.\n", (media & 1) ? "1" : "10"); a->write_bcr(ioaddr, 49, media); break; @@ -1401,8 +1415,34 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev) } /* Set the mii phy_id so that we can query the link state */ - if (lp->mii) + if (lp->mii) { + /* lp->phycount and lp->phymask are set to 0 by memset above */ + lp->mii_if.phy_id = ((lp->a.read_bcr (ioaddr, 33)) >> 5) & 0x1f; + /* scan for PHYs */ + for (i=0; i<PCNET32_MAX_PHYS; i++) { + unsigned short id1, id2; + + id1 = mdio_read(dev, i, MII_PHYSID1); + if (id1 == 0xffff) + continue; + id2 = mdio_read(dev, i, MII_PHYSID2); + if (id2 == 0xffff) + continue; + if (i == 31 && ((chip_version + 1) & 0xfffe) == 0x2624) + continue; /* 79C971 & 79C972 have phantom phy at id 31 */ + lp->phycount++; + lp->phymask |= (1 << i); + lp->mii_if.phy_id = i; + if (pcnet32_debug & NETIF_MSG_PROBE) + printk(KERN_INFO PFX "Found PHY %04x:%04x at address %d.\n", + id1, id2, i); + } + lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); + if (lp->phycount > 1) { + lp->options |= PCNET32_PORT_MII; + } + } init_timer (&lp->watchdog_timer); lp->watchdog_timer.data = (unsigned long) dev; @@ -1625,7 +1665,7 @@ pcnet32_open(struct net_device *dev) dev->name); } } - { + if (lp->phycount < 2) { /* * 24 Jun 2004 according AMD, in order to change the PHY, * DANAS (or DISPM for 79C976) must be set; then select the speed, @@ -1651,6 +1691,62 @@ pcnet32_open(struct net_device *dev) lp->a.write_bcr(ioaddr, 32, val); } } + } else { + int first_phy = -1; + u16 bmcr; + u32 bcr9; + struct ethtool_cmd ecmd; + + /* + * There is really no good other way to handle multiple PHYs + * other than turning off all automatics + */ + val = lp->a.read_bcr(ioaddr, 2); + lp->a.write_bcr(ioaddr, 2, val & ~2); + val = lp->a.read_bcr(ioaddr, 32); + lp->a.write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */ + + if (!(lp->options & PCNET32_PORT_ASEL)) { + /* setup ecmd */ + ecmd.port = PORT_MII; + ecmd.transceiver = XCVR_INTERNAL; + ecmd.autoneg = AUTONEG_DISABLE; + ecmd.speed = lp->options & PCNET32_PORT_100 ? SPEED_100 : SPEED_10; + bcr9 = lp->a.read_bcr(ioaddr, 9); + + if (lp->options & PCNET32_PORT_FD) { + ecmd.duplex = DUPLEX_FULL; + bcr9 |= (1 << 0); + } else { + ecmd.duplex = DUPLEX_HALF; + bcr9 |= ~(1 << 0); + } + lp->a.write_bcr(ioaddr, 9, bcr9); + } + + for (i=0; i<PCNET32_MAX_PHYS; i++) { + if (lp->phymask & (1 << i)) { + /* isolate all but the first PHY */ + bmcr = mdio_read(dev, i, MII_BMCR); + if (first_phy == -1) { + first_phy = i; + mdio_write(dev, i, MII_BMCR, bmcr & ~BMCR_ISOLATE); + } else { + mdio_write(dev, i, MII_BMCR, bmcr | BMCR_ISOLATE); + } + /* use mii_ethtool_sset to setup PHY */ + lp->mii_if.phy_id = i; + ecmd.phy_address = i; + if (lp->options & PCNET32_PORT_ASEL) { + mii_ethtool_gset(&lp->mii_if, &ecmd); + ecmd.autoneg = AUTONEG_ENABLE; + } + mii_ethtool_sset(&lp->mii_if, &ecmd); + } + } + lp->mii_if.phy_id = first_phy; + if (netif_msg_link(lp)) + printk(KERN_INFO "%s: Using PHY number %d.\n", dev->name, first_phy); } #ifdef DO_DXSUFLO @@ -1680,11 +1776,9 @@ pcnet32_open(struct net_device *dev) netif_start_queue(dev); - /* If we have mii, print the link status and start the watchdog */ - if (lp->mii) { - mii_check_media (&lp->mii_if, netif_msg_link(lp), 1); - mod_timer (&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT); - } + /* Print the link status and start the watchdog */ + pcnet32_check_media (dev, 1); + mod_timer (&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT); i = 0; while (i++ < 100) @@ -2430,17 +2524,111 @@ static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) return rc; } +static int pcnet32_check_otherphy(struct net_device *dev) +{ + struct pcnet32_private *lp = dev->priv; + struct mii_if_info mii = lp->mii_if; + u16 bmcr; + int i; + + for (i = 0; i < PCNET32_MAX_PHYS; i++) { + if (i == lp->mii_if.phy_id) + continue; /* skip active phy */ + if (lp->phymask & (1 << i)) { + mii.phy_id = i; + if (mii_link_ok(&mii)) { + /* found PHY with active link */ + if (netif_msg_link(lp)) + printk(KERN_INFO "%s: Using PHY number %d.\n", dev->name, i); + + /* isolate inactive phy */ + bmcr = mdio_read(dev, lp->mii_if.phy_id, MII_BMCR); + mdio_write(dev, lp->mii_if.phy_id, MII_BMCR, bmcr | BMCR_ISOLATE); + + /* de-isolate new phy */ + bmcr = mdio_read(dev, i, MII_BMCR); + mdio_write(dev, i, MII_BMCR, bmcr & ~BMCR_ISOLATE); + + /* set new phy address */ + lp->mii_if.phy_id = i; + return 1; + } + } + } + return 0; +} + +/* + * Show the status of the media. Similar to mii_check_media however it + * correctly shows the link speed for all (tested) pcnet32 variants. + * Devices with no mii just report link state without speed. + * + * Caller is assumed to hold and release the lp->lock. + */ + +static void pcnet32_check_media(struct net_device *dev, int verbose) +{ + struct pcnet32_private *lp = dev->priv; + int curr_link; + int prev_link = netif_carrier_ok(dev) ? 1 : 0; + u32 bcr9; + + if (lp->mii) { + curr_link = mii_link_ok(&lp->mii_if); + } else { + ulong ioaddr = dev->base_addr; /* card base I/O address */ + curr_link = (lp->a.read_bcr(ioaddr, 4) != 0xc0); + } + if (!curr_link) { + if (prev_link || verbose) { + netif_carrier_off(dev); + if (netif_msg_link(lp)) + printk(KERN_INFO "%s: link down\n", dev->name); + } + if (lp->phycount > 1) { + curr_link = pcnet32_check_otherphy(dev); + prev_link = 0; + } + } else if (verbose || !prev_link) { + netif_carrier_on(dev); + if (lp->mii) { + if (netif_msg_link(lp)) { + struct ethtool_cmd ecmd; + mii_ethtool_gset(&lp->mii_if, &ecmd); + printk(KERN_INFO "%s: link up, %sMbps, %s-duplex\n", + dev->name, + (ecmd.speed == SPEED_100) ? "100" : "10", + (ecmd.duplex == DUPLEX_FULL) ? "full" : "half"); + } + bcr9 = lp->a.read_bcr(dev->base_addr, 9); + if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) { + if (lp->mii_if.full_duplex) + bcr9 |= (1 << 0); + else + bcr9 &= ~(1 << 0); + lp->a.write_bcr(dev->base_addr, 9, bcr9); + } + } else { + if (netif_msg_link(lp)) + printk(KERN_INFO "%s: link up\n", dev->name); + } + } +} + +/* + * Check for loss of link and link establishment. + * Can not use mii_check_media because it does nothing if mode is forced. + */ + static void pcnet32_watchdog(struct net_device *dev) { struct pcnet32_private *lp = dev->priv; unsigned long flags; /* Print the link status if it has changed */ - if (lp->mii) { - spin_lock_irqsave(&lp->lock, flags); - mii_check_media (&lp->mii_if, netif_msg_link(lp), 0); - spin_unlock_irqrestore(&lp->lock, flags); - } + spin_lock_irqsave(&lp->lock, flags); + pcnet32_check_media(dev, 0); + spin_unlock_irqrestore(&lp->lock, flags); mod_timer (&(lp->watchdog_timer), PCNET32_WATCHDOG_TIMEOUT); } |