X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fnet%2Fioc3-eth.c;h=8ec15ab8c8c24fd09c0ae5b023d8471114047736;hb=12992dd89c84839167f97aae540f2ec889daf782;hp=e76e6e7be0b1b20c46990df26d55b81bc0f4bf9b;hpb=d955d90b90db4b3ac2a3e56d271f372c41fb00d6;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/net/ioc3-eth.c b/drivers/net/ioc3-eth.c index e76e6e7..8ec15ab 100644 --- a/drivers/net/ioc3-eth.c +++ b/drivers/net/ioc3-eth.c @@ -5,7 +5,7 @@ * * Driver for SGI's IOC3 based Ethernet cards as found in the PCI card. * - * Copyright (C) 1999, 2000, 2001, 2003 Ralf Baechle + * Copyright (C) 1999, 2000, 01, 03, 06 Ralf Baechle * Copyright (C) 1995, 1999, 2000, 2001 by Silicon Graphics, Inc. * * References: @@ -28,9 +28,8 @@ */ #define IOC3_NAME "ioc3-eth" -#define IOC3_VERSION "2.6.3-3" +#define IOC3_VERSION "2.6.3-4" -#include #include #include #include @@ -49,6 +48,7 @@ #ifdef CONFIG_SERIAL_8250 #include #include +#include #endif #include @@ -58,17 +58,11 @@ #include #include -#include #include #include #include #include -#include -#include -#include -#include #include -#include #include /* @@ -96,6 +90,9 @@ struct ioc3_private { u32 emcr, ehar_h, ehar_l; spinlock_t ioc3_lock; struct mii_if_info mii; + unsigned long flags; +#define IOC3_FLAG_RX_CHECKSUMS 1 + struct pci_dev *pdev; /* Members used by autonegotiation */ @@ -116,7 +113,7 @@ static inline void ioc3_stop(struct ioc3_private *ip); static void ioc3_init(struct net_device *dev); static const char ioc3_str[] = "IOC3 Ethernet"; -static struct ethtool_ops ioc3_ethtool_ops; +static const struct ethtool_ops ioc3_ethtool_ops; /* We use this to acquire receive skb's that we can DMA directly into. */ @@ -354,13 +351,12 @@ static u64 nic_find(struct ioc3 *ioc3, int *last) static int nic_init(struct ioc3 *ioc3) { - const char *type; + const char *unknown = "unknown"; + const char *type = unknown; u8 crc; u8 serial[6]; int save = 0, i; - type = "unknown"; - while (1) { u64 reg; reg = nic_find(ioc3, &save); @@ -394,11 +390,8 @@ static int nic_init(struct ioc3 *ioc3) } printk("Found %s NIC", type); - if (type != "unknown") { - printk (" registration number %02x:%02x:%02x:%02x:%02x:%02x," - " CRC %02x", serial[0], serial[1], serial[2], - serial[3], serial[4], serial[5], crc); - } + if (type != unknown) + printk (" registration number %pM, CRC %02x", serial, crc); printk(".\n"); return 0; @@ -447,18 +440,9 @@ static void ioc3_get_eaddr_nic(struct ioc3_private *ip) */ static void ioc3_get_eaddr(struct ioc3_private *ip) { - int i; - - ioc3_get_eaddr_nic(ip); - printk("Ethernet address is "); - for (i = 0; i < 6; i++) { - printk("%02x", priv_netdev(ip)->dev_addr[i]); - if (i < 5) - printk(":"); - } - printk(".\n"); + printk("Ethernet address is %pM.\n", priv_netdev(ip)->dev_addr); } static void __ioc3_set_mac_address(struct net_device *dev) @@ -523,8 +507,6 @@ static struct net_device_stats *ioc3_get_stats(struct net_device *dev) return &ip->stats; } -#ifdef CONFIG_SGI_IOC3_ETH_HW_RX_CSUM - static void ioc3_tcpudp_checksum(struct sk_buff *skb, uint32_t hwsum, int len) { struct ethhdr *eh = eth_hdr(skb); @@ -548,7 +530,7 @@ static void ioc3_tcpudp_checksum(struct sk_buff *skb, uint32_t hwsum, int len) * case where the checksum is right the higher layers will still * drop the packet as appropriate. */ - if (eh->h_proto != ntohs(ETH_P_IP)) + if (eh->h_proto != htons(ETH_P_IP)) return; ih = (struct iphdr *) ((char *)eh + ETH_HLEN); @@ -592,7 +574,6 @@ static void ioc3_tcpudp_checksum(struct sk_buff *skb, uint32_t hwsum, int len) if (csum == 0xffff) skb->ip_summed = CHECKSUM_UNNECESSARY; } -#endif /* CONFIG_SGI_IOC3_ETH_HW_RX_CSUM */ static inline void ioc3_rx(struct ioc3_private *ip) { @@ -627,22 +608,19 @@ static inline void ioc3_rx(struct ioc3_private *ip) goto next; } -#ifdef CONFIG_SGI_IOC3_ETH_HW_RX_CSUM - ioc3_tcpudp_checksum(skb, w0 & ERXBUF_IPCKSUM_MASK,len); -#endif + if (likely(ip->flags & IOC3_FLAG_RX_CHECKSUMS)) + ioc3_tcpudp_checksum(skb, + w0 & ERXBUF_IPCKSUM_MASK, len); netif_rx(skb); ip->rx_skbs[rx_entry] = NULL; /* Poison */ - new_skb->dev = priv_netdev(ip); - /* Because we reserve afterwards. */ skb_put(new_skb, (1664 + RX_OFFSET)); rxb = (struct ioc3_erxbuf *) new_skb->data; skb_reserve(new_skb, RX_OFFSET); - priv_netdev(ip)->last_rx = jiffies; ip->stats.rx_packets++; /* Statistics */ ip->stats.rx_bytes += len; } else { @@ -751,7 +729,7 @@ static void ioc3_error(struct ioc3_private *ip, u32 eisr) /* The interrupt handler does all of the Rx thread work and cleans up after the Tx thread. */ -static irqreturn_t ioc3_interrupt(int irq, void *_dev, struct pt_regs *regs) +static irqreturn_t ioc3_interrupt(int irq, void *_dev) { struct net_device *dev = (struct net_device *)_dev; struct ioc3_private *ip = netdev_priv(dev); @@ -838,13 +816,17 @@ static int ioc3_mii_init(struct ioc3_private *ip) } ip->mii.phy_id = i; + +out: + return res; +} + +static void ioc3_mii_start(struct ioc3_private *ip) +{ ip->ioc3_timer.expires = jiffies + (12 * HZ)/10; /* 1.2 sec. */ ip->ioc3_timer.data = (unsigned long) ip; ip->ioc3_timer.function = &ioc3_timer; add_timer(&ip->ioc3_timer); - -out: - return res; } static inline void ioc3_clean_rx_ring(struct ioc3_private *ip) @@ -938,7 +920,6 @@ static void ioc3_alloc_rings(struct net_device *dev) } ip->rx_skbs[i] = skb; - skb->dev = dev; /* Because we reserve afterwards. */ skb_put(skb, (1664 + RX_OFFSET)); @@ -1018,7 +999,7 @@ static void ioc3_init(struct net_device *dev) struct ioc3_private *ip = netdev_priv(dev); struct ioc3 *ioc3 = ip->regs; - del_timer(&ip->ioc3_timer); /* Kill if running */ + del_timer_sync(&ip->ioc3_timer); /* Kill if running */ ioc3_w_emcr(EMCR_RST); /* Reset */ (void) ioc3_r_emcr(); /* Flush WB */ @@ -1064,7 +1045,7 @@ static int ioc3_open(struct net_device *dev) { struct ioc3_private *ip = netdev_priv(dev); - if (request_irq(dev->irq, ioc3_interrupt, SA_SHIRQ, ioc3_str, dev)) { + if (request_irq(dev->irq, ioc3_interrupt, IRQF_SHARED, ioc3_str, dev)) { printk(KERN_ERR "%s: Can't get irq %d\n", dev->name, dev->irq); return -EAGAIN; @@ -1073,6 +1054,7 @@ static int ioc3_open(struct net_device *dev) ip->ehar_h = 0; ip->ehar_l = 0; ioc3_init(dev); + ioc3_mii_start(ip); netif_start_queue(dev); return 0; @@ -1082,7 +1064,7 @@ static int ioc3_close(struct net_device *dev) { struct ioc3_private *ip = netdev_priv(dev); - del_timer(&ip->ioc3_timer); + del_timer_sync(&ip->ioc3_timer); netif_stop_queue(dev); @@ -1103,20 +1085,28 @@ static int ioc3_close(struct net_device *dev) * MiniDINs; all other subdevices are left swinging in the wind, leave * them disabled. */ -static inline int ioc3_is_menet(struct pci_dev *pdev) + +static int ioc3_adjacent_is_ioc3(struct pci_dev *pdev, int slot) { - struct pci_dev *dev; - - return pdev->bus->parent == NULL - && (dev = pci_find_slot(pdev->bus->number, PCI_DEVFN(0, 0))) - && dev->vendor == PCI_VENDOR_ID_SGI - && dev->device == PCI_DEVICE_ID_SGI_IOC3 - && (dev = pci_find_slot(pdev->bus->number, PCI_DEVFN(1, 0))) - && dev->vendor == PCI_VENDOR_ID_SGI - && dev->device == PCI_DEVICE_ID_SGI_IOC3 - && (dev = pci_find_slot(pdev->bus->number, PCI_DEVFN(2, 0))) - && dev->vendor == PCI_VENDOR_ID_SGI - && dev->device == PCI_DEVICE_ID_SGI_IOC3; + struct pci_dev *dev = pci_get_slot(pdev->bus, PCI_DEVFN(slot, 0)); + int ret = 0; + + if (dev) { + if (dev->vendor == PCI_VENDOR_ID_SGI && + dev->device == PCI_DEVICE_ID_SGI_IOC3) + ret = 1; + pci_dev_put(dev); + } + + return ret; +} + +static int ioc3_is_menet(struct pci_dev *pdev) +{ + return pdev->bus->parent == NULL && + ioc3_adjacent_is_ioc3(pdev, 0) && + ioc3_adjacent_is_ioc3(pdev, 1) && + ioc3_adjacent_is_ioc3(pdev, 2); } #ifdef CONFIG_SERIAL_8250 @@ -1144,13 +1134,41 @@ static inline int ioc3_is_menet(struct pci_dev *pdev) * Also look in ip27-pci.c:pci_fixup_ioc3() for some comments on working * around ioc3 oddities in this respect. * - * The IOC3 serials use a 22MHz clock rate with an additional divider by 3. + * The IOC3 serials use a 22MHz clock rate with an additional divider which + * can be programmed in the SCR register if the DLAB bit is set. + * + * Register to interrupt zero because we share the interrupt with + * the serial driver which we don't properly support yet. + * + * Can't use UPF_IOREMAP as the whole of IOC3 resources have already been + * registered. */ +static void __devinit ioc3_8250_register(struct ioc3_uartregs __iomem *uart) +{ +#define COSMISC_CONSTANT 6 + + struct uart_port port = { + .irq = 0, + .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF, + .iotype = UPIO_MEM, + .regshift = 0, + .uartclk = (22000000 << 1) / COSMISC_CONSTANT, + + .membase = (unsigned char __iomem *) uart, + .mapbase = (unsigned long) uart, + }; + unsigned char lcr; + + lcr = uart->iu_lcr; + uart->iu_lcr = lcr | UART_LCR_DLAB; + uart->iu_scr = COSMISC_CONSTANT, + uart->iu_lcr = lcr; + uart->iu_lcr; + serial8250_register_port(&port); +} static void __devinit ioc3_serial_probe(struct pci_dev *pdev, struct ioc3 *ioc3) { - struct uart_port port; - /* * We need to recognice and treat the fourth MENET serial as it * does not have an SuperIO chip attached to it, therefore attempting @@ -1164,28 +1182,53 @@ static void __devinit ioc3_serial_probe(struct pci_dev *pdev, struct ioc3 *ioc3) return; /* - * Register to interrupt zero because we share the interrupt with - * the serial driver which we don't properly support yet. - * - * Can't use UPF_IOREMAP as the whole of IOC3 resources have already - * been registered. + * Switch IOC3 to PIO mode. It probably already was but let's be + * paranoid */ - memset(&port, 0, sizeof(port)); - port.irq = 0; - port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF; - port.iotype = UPIO_MEM; - port.regshift = 0; - port.uartclk = 22000000 / 3; - - port.membase = (unsigned char *) &ioc3->sregs.uarta; - serial8250_register_port(&port); - - port.membase = (unsigned char *) &ioc3->sregs.uartb; - serial8250_register_port(&port); + ioc3->gpcr_s = GPCR_UARTA_MODESEL | GPCR_UARTB_MODESEL; + ioc3->gpcr_s; + ioc3->gppr_6 = 0; + ioc3->gppr_6; + ioc3->gppr_7 = 0; + ioc3->gppr_7; + ioc3->sscr_a = ioc3->sscr_a & ~SSCR_DMA_EN; + ioc3->sscr_a; + ioc3->sscr_b = ioc3->sscr_b & ~SSCR_DMA_EN; + ioc3->sscr_b; + /* Disable all SA/B interrupts except for SA/B_INT in SIO_IEC. */ + ioc3->sio_iec &= ~ (SIO_IR_SA_TX_MT | SIO_IR_SA_RX_FULL | + SIO_IR_SA_RX_HIGH | SIO_IR_SA_RX_TIMER | + SIO_IR_SA_DELTA_DCD | SIO_IR_SA_DELTA_CTS | + SIO_IR_SA_TX_EXPLICIT | SIO_IR_SA_MEMERR); + ioc3->sio_iec |= SIO_IR_SA_INT; + ioc3->sscr_a = 0; + ioc3->sio_iec &= ~ (SIO_IR_SB_TX_MT | SIO_IR_SB_RX_FULL | + SIO_IR_SB_RX_HIGH | SIO_IR_SB_RX_TIMER | + SIO_IR_SB_DELTA_DCD | SIO_IR_SB_DELTA_CTS | + SIO_IR_SB_TX_EXPLICIT | SIO_IR_SB_MEMERR); + ioc3->sio_iec |= SIO_IR_SB_INT; + ioc3->sscr_b = 0; + + ioc3_8250_register(&ioc3->sregs.uarta); + ioc3_8250_register(&ioc3->sregs.uartb); } #endif -static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +static const struct net_device_ops ioc3_netdev_ops = { + .ndo_open = ioc3_open, + .ndo_stop = ioc3_close, + .ndo_start_xmit = ioc3_start_xmit, + .ndo_tx_timeout = ioc3_timeout, + .ndo_get_stats = ioc3_get_stats, + .ndo_set_multicast_list = ioc3_set_multicast_list, + .ndo_do_ioctl = ioc3_ioctl, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = ioc3_set_mac_address, + .ndo_change_mtu = eth_change_mtu, +}; + +static int __devinit ioc3_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) { unsigned int sw_physid1, sw_physid2; struct net_device *dev = NULL; @@ -1196,17 +1239,17 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) int err, pci_using_dac; /* Configure DMA attributes. */ - err = pci_set_dma_mask(pdev, DMA_64BIT_MASK); + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); if (!err) { pci_using_dac = 1; - err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); if (err < 0) { printk(KERN_ERR "%s: Unable to obtain 64 bit DMA " "for consistent allocations\n", pci_name(pdev)); goto out; } } else { - err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (err) { printk(KERN_ERR "%s: No usable DMA configuration, " "aborting.\n", pci_name(pdev)); @@ -1231,7 +1274,6 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (err) goto out_free; - SET_MODULE_OWNER(dev); SET_NETDEV_DEV(dev, &pdev->dev); ip = netdev_priv(dev); @@ -1276,23 +1318,15 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto out_stop; } + ioc3_mii_start(ip); ioc3_ssram_disc(ip); ioc3_get_eaddr(ip); /* The IOC3-specific entries in the device structure. */ - dev->open = ioc3_open; - dev->hard_start_xmit = ioc3_start_xmit; - dev->tx_timeout = ioc3_timeout; dev->watchdog_timeo = 5 * HZ; - dev->stop = ioc3_close; - dev->get_stats = ioc3_get_stats; - dev->do_ioctl = ioc3_ioctl; - dev->set_multicast_list = ioc3_set_multicast_list; - dev->set_mac_address = ioc3_set_mac_address; + dev->netdev_ops = &ioc3_netdev_ops; dev->ethtool_ops = &ioc3_ethtool_ops; -#ifdef CONFIG_SGI_IOC3_ETH_HW_TX_CSUM dev->features = NETIF_F_IP_CSUM; -#endif sw_physid1 = ioc3_mdio_read(dev, ip->mii.phy_id, MII_PHYSID1); sw_physid2 = ioc3_mdio_read(dev, ip->mii.phy_id, MII_PHYSID2); @@ -1316,6 +1350,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) out_stop: ioc3_stop(ip); + del_timer_sync(&ip->ioc3_timer); ioc3_free_rings(ip); out_res: pci_release_regions(pdev); @@ -1337,6 +1372,8 @@ static void __devexit ioc3_remove_one (struct pci_dev *pdev) struct ioc3 *ioc3 = ip->regs; unregister_netdev(dev); + del_timer_sync(&ip->ioc3_timer); + iounmap(ioc3); pci_release_regions(pdev); free_netdev(dev); @@ -1379,7 +1416,6 @@ static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev) uint32_t w0 = 0; int produce; -#ifdef CONFIG_SGI_IOC3_ETH_HW_TX_CSUM /* * IOC3 has a fairly simple minded checksumming hardware which simply * adds up the 1's complement checksum for the entire packet and @@ -1388,10 +1424,10 @@ static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev) * MAC header which should not be summed and the TCP/UDP pseudo headers * manually. */ - if (skb->ip_summed == CHECKSUM_HW) { - int proto = ntohs(skb->nh.iph->protocol); + if (skb->ip_summed == CHECKSUM_PARTIAL) { + const struct iphdr *ih = ip_hdr(skb); + const int proto = ntohs(ih->protocol); unsigned int csoff; - struct iphdr *ih = skb->nh.iph; uint32_t csum, ehsum; uint16_t *eh; @@ -1418,16 +1454,15 @@ static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev) csoff = ETH_HLEN + (ih->ihl << 2); if (proto == IPPROTO_UDP) { csoff += offsetof(struct udphdr, check); - skb->h.uh->check = csum; + udp_hdr(skb)->check = csum; } if (proto == IPPROTO_TCP) { csoff += offsetof(struct tcphdr, check); - skb->h.th->check = csum; + tcp_hdr(skb)->check = csum; } w0 = ETXD_DOCHECKSUM | (csoff << ETXD_CHKOFF_SHIFT); } -#endif /* CONFIG_SGI_IOC3_ETH_HW_TX_CSUM */ spin_lock_irq(&ip->ioc3_lock); @@ -1439,7 +1474,7 @@ static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev) if (len <= 104) { /* Short packet, let's copy it directly into the ring. */ - memcpy(desc->data, skb->data, skb->len); + skb_copy_from_linear_data(skb, desc->data, skb->len); if (len < ETH_ZLEN) { /* Very short packet, pad with zeros at the end. */ memset(desc->data + len, 0, ETH_ZLEN - len); @@ -1480,7 +1515,7 @@ static int ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev) spin_unlock_irq(&ip->ioc3_lock); - return 0; + return NETDEV_TX_OK; } static void ioc3_timeout(struct net_device *dev) @@ -1494,6 +1529,7 @@ static void ioc3_timeout(struct net_device *dev) ioc3_stop(ip); ioc3_init(dev); ioc3_mii_init(ip); + ioc3_mii_start(ip); spin_unlock_irq(&ip->ioc3_lock); @@ -1581,12 +1617,37 @@ static u32 ioc3_get_link(struct net_device *dev) return rc; } -static struct ethtool_ops ioc3_ethtool_ops = { +static u32 ioc3_get_rx_csum(struct net_device *dev) +{ + struct ioc3_private *ip = netdev_priv(dev); + + return ip->flags & IOC3_FLAG_RX_CHECKSUMS; +} + +static int ioc3_set_rx_csum(struct net_device *dev, u32 data) +{ + struct ioc3_private *ip = netdev_priv(dev); + + spin_lock_bh(&ip->ioc3_lock); + if (data) + ip->flags |= IOC3_FLAG_RX_CHECKSUMS; + else + ip->flags &= ~IOC3_FLAG_RX_CHECKSUMS; + spin_unlock_bh(&ip->ioc3_lock); + + return 0; +} + +static const struct ethtool_ops ioc3_ethtool_ops = { .get_drvinfo = ioc3_get_drvinfo, .get_settings = ioc3_get_settings, .set_settings = ioc3_set_settings, .nway_reset = ioc3_nway_reset, .get_link = ioc3_get_link, + .get_rx_csum = ioc3_get_rx_csum, + .set_rx_csum = ioc3_set_rx_csum, + .get_tx_csum = ethtool_op_get_tx_csum, + .set_tx_csum = ethtool_op_set_tx_csum }; static int ioc3_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) @@ -1612,8 +1673,6 @@ static void ioc3_set_multicast_list(struct net_device *dev) netif_stop_queue(dev); /* Lock out others. */ if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ - /* Unconditionally log net taps. */ - printk(KERN_INFO "%s: Promiscuous mode enabled.\n", dev->name); ip->emcr |= EMCR_PROMISC; ioc3_w_emcr(ip->emcr); (void) ioc3_r_emcr();