X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fnet%2Fnatsemi.c;h=ffa0afd2eddcd372c614a6724be4cb3444e85f28;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=90627756d6fa47bbe93ce363af1d6ced2307fba4;hpb=43bc926fffd92024b46cafaf7350d669ba9ca884;p=linux-2.6.git diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c index 90627756d..ffa0afd2e 100644 --- a/drivers/net/natsemi.c +++ b/drivers/net/natsemi.c @@ -20,125 +20,13 @@ 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 */ -#include #include #include #include @@ -166,8 +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 @@ -226,7 +114,6 @@ static int full_duplex[MAX_UNITS]; NATSEMI_PG1_NREGS) #define NATSEMI_REGS_VER 1 /* v1 added RFDR registers */ #define NATSEMI_REGS_SIZE (NATSEMI_NREGS * sizeof(u32)) -#define NATSEMI_DEF_EEPROM_SIZE 24 /* 12 16-bit values */ /* Buffer sizes: * The nic writes 32-bit values, even if the upper bytes of @@ -256,9 +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)"); @@ -318,12 +205,12 @@ performance critical codepaths: The rx process only runs in the interrupt handler. Access from outside the interrupt handler is only permitted after disable_irq(). -The rx process usually runs under the dev->xmit_lock. If np->intr_tx_reap +The rx process usually runs under the netif_tx_lock. If np->intr_tx_reap is set, then access is permitted under spin_lock_irq(&np->lock). Thus configuration functions that want to access everything must call disable_irq(dev->irq); - spin_lock_bh(dev->xmit_lock); + netif_tx_lock_bh(dev); spin_lock_irq(&np->lock); IV. Notes @@ -344,18 +231,6 @@ None characterised. -enum pcistuff { - PCI_USES_IO = 0x01, - PCI_USES_MEM = 0x02, - PCI_USES_MASTER = 0x04, - PCI_ADDR0 = 0x08, - PCI_ADDR1 = 0x10, -}; - -/* MMIO operations required */ -#define PCI_IOTYPE (PCI_USES_MASTER | PCI_USES_MEM | PCI_ADDR1) - - /* * Support for fibre connections on Am79C874: * This phy needs a special setup when connected to a fibre cable. @@ -363,22 +238,25 @@ enum pcistuff { */ #define PHYID_AM79C874 0x0022561b -#define MII_MCTRL 0x15 /* mode control register */ -#define MII_FX_SEL 0x0001 /* 100BASE-FX (fiber) */ -#define MII_EN_SCRM 0x0004 /* enable scrambler (tp) */ +enum { + MII_MCTRL = 0x15, /* mode control register */ + MII_FX_SEL = 0x0001, /* 100BASE-FX (fiber) */ + MII_EN_SCRM = 0x0004, /* enable scrambler (tp) */ +}; + - /* 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 = { - { "NatSemi DP8381[56]", PCI_IOTYPE }, + { "NatSemi DP8381[56]", 0, 24 }, }; -static struct pci_device_id natsemi_pci_tbl[] = { - { PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_83815, PCI_ANY_ID, PCI_ANY_ID, }, - { 0, }, +static const struct pci_device_id natsemi_pci_tbl[] __devinitdata = { + { PCI_VENDOR_ID_NS, 0x0020, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, + { } /* terminate list */ }; MODULE_DEVICE_TABLE(pci, natsemi_pci_tbl); @@ -536,7 +414,7 @@ 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) @@ -745,7 +623,7 @@ 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); @@ -769,7 +647,7 @@ 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) { @@ -794,7 +672,7 @@ 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: @@ -813,6 +691,42 @@ static void move_int_phy(struct net_device *dev, int addr) udelay(1); } +static void __devinit natsemi_init_media (struct net_device *dev) +{ + struct netdev_private *np = netdev_priv(dev); + u32 tmp; + + netif_carrier_off(dev); + + /* get the initial settings from hardware */ + tmp = mdio_read(dev, MII_BMCR); + np->speed = (tmp & BMCR_SPEED100)? SPEED_100 : SPEED_10; + np->duplex = (tmp & BMCR_FULLDPLX)? DUPLEX_FULL : DUPLEX_HALF; + np->autoneg = (tmp & BMCR_ANENABLE)? AUTONEG_ENABLE: AUTONEG_DISABLE; + np->advertising= mdio_read(dev, MII_ADVERTISE); + + if ((np->advertising & ADVERTISE_ALL) != ADVERTISE_ALL + && netif_msg_probe(np)) { + printk(KERN_INFO "natsemi %s: Transceiver default autonegotiation %s " + "10%s %s duplex.\n", + pci_name(np->pci_dev), + (mdio_read(dev, MII_BMCR) & BMCR_ANENABLE)? + "enabled, advertise" : "disabled, force", + (np->advertising & + (ADVERTISE_100FULL|ADVERTISE_100HALF))? + "0" : "", + (np->advertising & + (ADVERTISE_100FULL|ADVERTISE_10FULL))? + "full" : "half"); + } + if (netif_msg_probe(np)) + printk(KERN_INFO + "natsemi %s: Transceiver status %#04x advertising %#04x.\n", + pci_name(np->pci_dev), mdio_read(dev, MII_BMSR), + np->advertising); + +} + static int __devinit natsemi_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent) { @@ -852,8 +766,7 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev, iosize = pci_resource_len(pdev, pcibar); irq = pdev->irq; - if (natsemi_pci_info[chip_idx].flags & PCI_USES_MASTER) - pci_set_master(pdev); + pci_set_master(pdev); dev = alloc_etherdev(sizeof (struct netdev_private)); if (!dev) @@ -892,7 +805,7 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev, np->msg_enable = (debug >= 0) ? (1<hands_off = 0; np->intr_status = 0; - np->eeprom_size = NATSEMI_DEF_EEPROM_SIZE; + np->eeprom_size = natsemi_pci_info[chip_idx].eeprom_size; /* Initial port: * - If the nic was configured to use an external phy and if find_mii @@ -957,34 +870,7 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev, if (mtu) dev->mtu = mtu; - netif_carrier_off(dev); - - /* get the initial settings from hardware */ - tmp = mdio_read(dev, MII_BMCR); - np->speed = (tmp & BMCR_SPEED100)? SPEED_100 : SPEED_10; - np->duplex = (tmp & BMCR_FULLDPLX)? DUPLEX_FULL : DUPLEX_HALF; - np->autoneg = (tmp & BMCR_ANENABLE)? AUTONEG_ENABLE: AUTONEG_DISABLE; - np->advertising= mdio_read(dev, MII_ADVERTISE); - - if ((np->advertising & ADVERTISE_ALL) != ADVERTISE_ALL - && netif_msg_probe(np)) { - printk(KERN_INFO "natsemi %s: Transceiver default autonegotiation %s " - "10%s %s duplex.\n", - pci_name(np->pci_dev), - (mdio_read(dev, MII_BMCR) & BMCR_ANENABLE)? - "enabled, advertise" : "disabled, force", - (np->advertising & - (ADVERTISE_100FULL|ADVERTISE_100HALF))? - "0" : "", - (np->advertising & - (ADVERTISE_100FULL|ADVERTISE_10FULL))? - "full" : "half"); - } - if (netif_msg_probe(np)) - printk(KERN_INFO - "natsemi %s: Transceiver status %#04x advertising %#04x.\n", - pci_name(np->pci_dev), mdio_read(dev, MII_BMSR), - np->advertising); + natsemi_init_media(dev); /* save the silicon revision for later querying */ np->srr = readl(ioaddr + SiliconRev); @@ -1209,7 +1095,7 @@ 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. @@ -1350,7 +1236,7 @@ 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)); @@ -1390,7 +1276,7 @@ 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 @@ -1577,7 +1463,7 @@ static int netdev_open(struct net_device *dev) /* Reset the chip, just in case. */ natsemi_reset(dev); - i = request_irq(dev->irq, &intr_handler, SA_SHIRQ, dev->name, dev); + i = request_irq(dev->irq, &intr_handler, IRQF_SHARED, dev->name, dev); if (i) return i; if (netif_msg_ifup(np)) @@ -1687,7 +1573,7 @@ static void check_link(struct net_device *dev) void __iomem * ioaddr = ns_ioaddr(dev); int duplex; u16 bmsr; - + /* 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. @@ -2202,7 +2088,7 @@ 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); @@ -2210,7 +2096,7 @@ 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); @@ -2220,7 +2106,7 @@ 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]); @@ -2255,13 +2141,13 @@ 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; @@ -2487,7 +2373,7 @@ 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 @@ -2501,9 +2387,6 @@ 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) @@ -2690,7 +2573,7 @@ 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, @@ -2861,7 +2744,7 @@ 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. @@ -3360,7 +3243,7 @@ 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)