X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=drivers%2Fnet%2Fnatsemi.c;h=adf29dd66798d575e89413068f3666e3f6027bc2;hp=9df2628be1e733add4e8b55e92217f52aa0583fa;hb=9654640d0af8f2de40ff3807d3695109d3463f54;hpb=026477c1141b67e98e3bd8bdedb7d4b88a3ecd09 diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c index 9df2628be1e7..adf29dd66798 100644 --- a/drivers/net/natsemi.c +++ b/drivers/net/natsemi.c @@ -20,120 +20,9 @@ Support information and updates available at http://www.scyld.com/network/netsemi.html + [link no longer provides useful info -jgarzik] - Linux kernel modifications: - - Version 1.0.1: - - Spinlock fixes - - Bug fixes and better intr performance (Tjeerd) - Version 1.0.2: - - Now reads correct MAC address from eeprom - Version 1.0.3: - - Eliminate redundant priv->tx_full flag - - Call netif_start_queue from dev->tx_timeout - - wmb() in start_tx() to flush data - - Update Tx locking - - Clean up PCI enable (davej) - Version 1.0.4: - - Merge Donald Becker's natsemi.c version 1.07 - Version 1.0.5: - - { fill me in } - Version 1.0.6: - * ethtool support (jgarzik) - * Proper initialization of the card (which sometimes - fails to occur and leaves the card in a non-functional - state). (uzi) - - * Some documented register settings to optimize some - of the 100Mbit autodetection circuitry in rev C cards. (uzi) - - * Polling of the PHY intr for stuff like link state - change and auto- negotiation to finally work properly. (uzi) - - * One-liner removal of a duplicate declaration of - netdev_error(). (uzi) - - Version 1.0.7: (Manfred Spraul) - * pci dma - * SMP locking update - * full reset added into tx_timeout - * correct multicast hash generation (both big and little endian) - [copied from a natsemi driver version - from Myrio Corporation, Greg Smith] - * suspend/resume - - version 1.0.8 (Tim Hockin ) - * ETHTOOL_* support - * Wake on lan support (Erik Gilling) - * MXDMA fixes for serverworks - * EEPROM reload - - version 1.0.9 (Manfred Spraul) - * Main change: fix lack of synchronize - netif_close/netif_suspend against a last interrupt - or packet. - * do not enable superflous interrupts (e.g. the - drivers relies on TxDone - TxIntr not needed) - * wait that the hardware has really stopped in close - and suspend. - * workaround for the (at least) gcc-2.95.1 compiler - problem. Also simplifies the code a bit. - * disable_irq() in tx_timeout - needed to protect - against rx interrupts. - * stop the nic before switching into silent rx mode - for wol (required according to docu). - - version 1.0.10: - * use long for ee_addr (various) - * print pointers properly (DaveM) - * include asm/irq.h (?) - - version 1.0.11: - * check and reset if PHY errors appear (Adrian Sun) - * WoL cleanup (Tim Hockin) - * Magic number cleanup (Tim Hockin) - * Don't reload EEPROM on every reset (Tim Hockin) - * Save and restore EEPROM state across reset (Tim Hockin) - * MDIO Cleanup (Tim Hockin) - * Reformat register offsets/bits (jgarzik) - - version 1.0.12: - * ETHTOOL_* further support (Tim Hockin) - - version 1.0.13: - * ETHTOOL_[G]EEPROM support (Tim Hockin) - - version 1.0.13: - * crc cleanup (Matt Domsch ) - - version 1.0.14: - * Cleanup some messages and autoneg in ethtool (Tim Hockin) - - version 1.0.15: - * Get rid of cable_magic flag - * use new (National provided) solution for cable magic issue - - version 1.0.16: - * call netdev_rx() for RxErrors (Manfred Spraul) - * formatting and cleanups - * change options and full_duplex arrays to be zero - initialized - * enable only the WoL and PHY interrupts in wol mode - - version 1.0.17: - * only do cable_magic on 83815 and early 83816 (Tim Hockin) - * create a function for rx refill (Manfred Spraul) - * combine drain_ring and init_ring (Manfred Spraul) - * oom handling (Manfred Spraul) - * hands_off instead of playing with netif_device_{de,a}ttach - (Manfred Spraul) - * be sure to write the MAC back to the chip (Manfred Spraul) - * lengthen EEPROM timeout, and always warn about timeouts - (Manfred Spraul) - * comments update (Manfred) - * do the right thing on a phy-reset (Manfred and Tim) - TODO: * big endian support with CFG:BEM instead of cpu_to_le32 */ @@ -165,8 +54,8 @@ #include #define DRV_NAME "natsemi" -#define DRV_VERSION "1.07+LK1.0.17" -#define DRV_RELDATE "Sep 27, 2002" +#define DRV_VERSION "2.1" +#define DRV_RELDATE "Sept 11, 2006" #define RX_OFFSET 2 @@ -254,9 +143,9 @@ module_param_array(options, int, NULL, 0); module_param_array(full_duplex, int, NULL, 0); MODULE_PARM_DESC(mtu, "DP8381x MTU (all boards)"); MODULE_PARM_DESC(debug, "DP8381x default debug level"); -MODULE_PARM_DESC(rx_copybreak, +MODULE_PARM_DESC(rx_copybreak, "DP8381x copy breakpoint for copy-only-tiny-frames"); -MODULE_PARM_DESC(options, +MODULE_PARM_DESC(options, "DP8381x: Bits 0-3: media type, bit 17: full duplex"); MODULE_PARM_DESC(full_duplex, "DP8381x full duplex setting(s) (1)"); @@ -355,17 +244,22 @@ enum { MII_EN_SCRM = 0x0004, /* enable scrambler (tp) */ }; - +enum { + NATSEMI_FLAG_IGNORE_PHY = 0x1, +}; + /* array of board data directly indexed by pci_tbl[x].driver_data */ static const struct { const char *name; unsigned long flags; unsigned int eeprom_size; } natsemi_pci_info[] __devinitdata = { + { "Aculab E1/T1 PMXc cPCI carrier card", NATSEMI_FLAG_IGNORE_PHY, 128 }, { "NatSemi DP8381[56]", 0, 24 }, }; static const struct pci_device_id natsemi_pci_tbl[] __devinitdata = { + { PCI_VENDOR_ID_NS, 0x0020, 0x12d9, 0x000c, 0, 0, 0 }, { PCI_VENDOR_ID_NS, 0x0020, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, { } /* terminate list */ }; @@ -525,7 +419,7 @@ enum TxConfig_bits { TxCarrierIgn = 0x80000000 }; -/* +/* * Tx Configuration: * - 256 byte DMA burst length * - fill threshold 512 bytes (i.e. restart DMA when 512 bytes are free) @@ -679,6 +573,8 @@ struct netdev_private { u32 intr_status; /* Do not touch the nic registers */ int hands_off; + /* Don't pay attention to the reported link state. */ + int ignore_phy; /* external phy that is used: only valid if dev->if_port != PORT_TP */ int mii; int phy_addr_external; @@ -734,7 +630,7 @@ static void free_ring(struct net_device *dev); static void reinit_ring(struct net_device *dev); static void init_registers(struct net_device *dev); static int start_tx(struct sk_buff *skb, struct net_device *dev); -static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *regs); +static irqreturn_t intr_handler(int irq, void *dev_instance); static void netdev_error(struct net_device *dev, int intr_status); static int natsemi_poll(struct net_device *dev, int *budget); static void netdev_rx(struct net_device *dev, int *work_done, int work_to_do); @@ -758,7 +654,7 @@ static void enable_wol_mode(struct net_device *dev, int enable_intr); static int netdev_close(struct net_device *dev); static int netdev_get_regs(struct net_device *dev, u8 *buf); static int netdev_get_eeprom(struct net_device *dev, u8 *buf); -static struct ethtool_ops ethtool_ops; +static const struct ethtool_ops ethtool_ops; static inline void __iomem *ns_ioaddr(struct net_device *dev) { @@ -783,7 +679,7 @@ static void move_int_phy(struct net_device *dev, int addr) void __iomem *ioaddr = ns_ioaddr(dev); int target = 31; - /* + /* * The internal phy is visible on the external mii bus. Therefore we must * move it away before we can send commands to an external phy. * There are two addresses we must avoid: @@ -807,7 +703,10 @@ static void __devinit natsemi_init_media (struct net_device *dev) struct netdev_private *np = netdev_priv(dev); u32 tmp; - netif_carrier_off(dev); + if (np->ignore_phy) + netif_carrier_on(dev); + else + netif_carrier_off(dev); /* get the initial settings from hardware */ tmp = mdio_read(dev, MII_BMCR); @@ -917,8 +816,13 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev, np->hands_off = 0; np->intr_status = 0; np->eeprom_size = natsemi_pci_info[chip_idx].eeprom_size; + if (natsemi_pci_info[chip_idx].flags & NATSEMI_FLAG_IGNORE_PHY) + np->ignore_phy = 1; + else + np->ignore_phy = 0; /* Initial port: + * - If configured to ignore the PHY set up for external. * - If the nic was configured to use an external phy and if find_mii * finds a phy: use external port, first phy that replies. * - Otherwise: internal port. @@ -926,7 +830,7 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev, * The address would be used to access a phy over the mii bus, but * the internal phy is accessed through mapped registers. */ - if (readl(ioaddr + ChipConfig) & CfgExtPhy) + if (np->ignore_phy || readl(ioaddr + ChipConfig) & CfgExtPhy) dev->if_port = PORT_MII; else dev->if_port = PORT_TP; @@ -936,7 +840,9 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev, if (dev->if_port != PORT_TP) { np->phy_addr_external = find_mii(dev); - if (np->phy_addr_external == PHY_ADDR_NONE) { + /* If we're ignoring the PHY it doesn't matter if we can't + * find one. */ + if (!np->ignore_phy && np->phy_addr_external == PHY_ADDR_NONE) { dev->if_port = PORT_TP; np->phy_addr_external = PHY_ADDR_INTERNAL; } @@ -1002,6 +908,8 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev, printk("%02x, IRQ %d", dev->dev_addr[i], irq); if (dev->if_port == PORT_TP) printk(", port TP.\n"); + else if (np->ignore_phy) + printk(", port MII, ignoring PHY\n"); else printk(", port MII, phy ad %d.\n", np->phy_addr_external); } @@ -1206,7 +1114,7 @@ static void init_phy_fixup(struct net_device *dev) tmp |= BMCR_SPEED100; if (np->duplex == DUPLEX_FULL) tmp |= BMCR_FULLDPLX; - /* + /* * Note: there is no good way to inform the link partner * that our capabilities changed. The user has to unplug * and replug the network cable after some changes, e.g. @@ -1347,7 +1255,7 @@ static int switch_port_internal(struct net_device *dev) writel(cfg, ioaddr + ChipConfig); readl(ioaddr + ChipConfig); udelay(1); - + /* 2) reset the internal phy: */ bmcr = readw(ioaddr+BasicControl+(MII_BMCR<<2)); writel(bmcr | BMCR_RESET, ioaddr+BasicControl+(MII_BMCR<<2)); @@ -1387,7 +1295,7 @@ static int find_mii(struct net_device *dev) /* Switch to external phy */ did_switch = switch_port_external(dev); - + /* Scan the possible phy addresses: * * PHY address 0 means that the phy is in isolate mode. Not yet @@ -1682,9 +1590,13 @@ static void check_link(struct net_device *dev) { struct netdev_private *np = netdev_priv(dev); void __iomem * ioaddr = ns_ioaddr(dev); - int duplex; + int duplex = np->duplex; u16 bmsr; - + + /* If we are ignoring the PHY then don't try reading it. */ + if (np->ignore_phy) + goto propagate_state; + /* The link status field is latched: it remains low after a temporary * link failure until it's read. We need the current link status, * thus read twice. @@ -1696,7 +1608,7 @@ static void check_link(struct net_device *dev) if (netif_carrier_ok(dev)) { if (netif_msg_link(np)) printk(KERN_NOTICE "%s: link down.\n", - dev->name); + dev->name); netif_carrier_off(dev); undo_cable_magic(dev); } @@ -1720,6 +1632,7 @@ static void check_link(struct net_device *dev) duplex = 1; } +propagate_state: /* if duplex is set then bit 28 must be set, too */ if (duplex ^ !!(np->rx_config & RxAcceptTx)) { if (netif_msg_link(np)) @@ -2199,7 +2112,7 @@ static void netdev_tx_done(struct net_device *dev) /* The interrupt handler doesn't actually handle interrupts itself, it * schedules a NAPI poll if there is anything to do. */ -static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *rgs) +static irqreturn_t intr_handler(int irq, void *dev_instance) { struct net_device *dev = dev_instance; struct netdev_private *np = netdev_priv(dev); @@ -2207,7 +2120,7 @@ static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *rgs if (np->hands_off) return IRQ_NONE; - + /* Reading automatically acknowledges. */ np->intr_status = readl(ioaddr + IntrStatus); @@ -2217,7 +2130,7 @@ static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *rgs dev->name, np->intr_status, readl(ioaddr + IntrMask)); - if (!np->intr_status) + if (!np->intr_status) return IRQ_NONE; prefetch(&np->rx_skbuff[np->cur_rx % RX_RING_SIZE]); @@ -2252,13 +2165,13 @@ static int natsemi_poll(struct net_device *dev, int *budget) /* Abnormal error summary/uncommon events handlers. */ if (np->intr_status & IntrAbnormalSummary) netdev_error(dev, np->intr_status); - + if (np->intr_status & (IntrRxDone | IntrRxIntr | RxStatusFIFOOver | IntrRxErr | IntrRxOverrun)) { netdev_rx(dev, &work_done, work_to_do); } - + *budget -= work_done; dev->quota -= work_done; @@ -2484,7 +2397,7 @@ static struct net_device_stats *get_stats(struct net_device *dev) static void natsemi_poll_controller(struct net_device *dev) { disable_irq(dev->irq); - intr_handler(dev->irq, dev, NULL); + intr_handler(dev->irq, dev); enable_irq(dev->irq); } #endif @@ -2498,9 +2411,6 @@ static void __set_rx_mode(struct net_device *dev) u32 rx_mode; if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ - /* Unconditionally log net taps. */ - printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", - dev->name); rx_mode = RxFilterEnable | AcceptBroadcast | AcceptAllMulticast | AcceptAllPhys | AcceptMyPhys; } else if ((dev->mc_count > multicast_filter_limit) @@ -2687,7 +2597,7 @@ static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 return res; } -static struct ethtool_ops ethtool_ops = { +static const struct ethtool_ops ethtool_ops = { .get_drvinfo = get_drvinfo, .get_regs_len = get_regs_len, .get_eeprom_len = get_eeprom_len, @@ -2858,7 +2768,7 @@ static int netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) * phy, even if the internal phy is used. This is necessary * to work around a deficiency of the ethtool interface: * It's only possible to query the settings of the active - * port. Therefore + * port. Therefore * # ethtool -s ethX port mii * actually sends an ioctl to switch to port mii with the * settings that are used for the current active port. @@ -2932,6 +2842,15 @@ static int netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) return -EINVAL; } + /* + * If we're ignoring the PHY then autoneg and the internal + * transciever are really not going to work so don't let the + * user select them. + */ + if (np->ignore_phy && (ecmd->autoneg == AUTONEG_ENABLE || + ecmd->port == PORT_TP)) + return -EINVAL; + /* * maxtxpkt, maxrxpkt: ignored for now. * @@ -3357,7 +3276,7 @@ static int __init natsemi_init_mod (void) printk(version); #endif - return pci_module_init (&natsemi_driver); + return pci_register_driver(&natsemi_driver); } static void __exit natsemi_exit_mod (void)