diff options
Diffstat (limited to 'drivers/net/ethernet/via/via-rhine.c')
| -rw-r--r-- | drivers/net/ethernet/via/via-rhine.c | 611 |
1 files changed, 385 insertions, 226 deletions
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c index 7992b3e05d3..2d72f96a9e2 100644 --- a/drivers/net/ethernet/via/via-rhine.c +++ b/drivers/net/ethernet/via/via-rhine.c @@ -32,7 +32,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #define DRV_NAME "via-rhine" -#define DRV_VERSION "1.5.0" +#define DRV_VERSION "1.5.1" #define DRV_RELDATE "2010-10-09" #include <linux/types.h> @@ -94,6 +94,10 @@ static const int multicast_filter_limit = 32; #include <linux/ioport.h> #include <linux/interrupt.h> #include <linux/pci.h> +#include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/of_irq.h> +#include <linux/platform_device.h> #include <linux/dma-mapping.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> @@ -116,13 +120,6 @@ static const int multicast_filter_limit = 32; static const char version[] = "v1.10-LK" DRV_VERSION " " DRV_RELDATE " Written by Donald Becker"; -/* This driver was written to use PCI memory space. Some early versions - of the Rhine may only work correctly with I/O space accesses. */ -#ifdef CONFIG_VIA_RHINE_MMIO -#define USE_MMIO -#else -#endif - MODULE_AUTHOR("Donald Becker <becker@scyld.com>"); MODULE_DESCRIPTION("VIA Rhine PCI Fast Ethernet driver"); MODULE_LICENSE("GPL"); @@ -260,6 +257,12 @@ enum rhine_quirks { rq6patterns = 0x0040, /* 6 instead of 4 patterns for WOL */ rqStatusWBRace = 0x0080, /* Tx Status Writeback Error possible */ rqRhineI = 0x0100, /* See comment below */ + rqIntPHY = 0x0200, /* Integrated PHY */ + rqMgmt = 0x0400, /* Management adapter */ + rqNeedEnMMIO = 0x0800, /* Whether the core needs to be + * switched from PIO mode to MMIO + * (only applies to PCI) + */ }; /* * rqRhineI: VT86C100A (aka Rhine-I) uses different bits to enable @@ -279,6 +282,15 @@ static DEFINE_PCI_DEVICE_TABLE(rhine_pci_tbl) = { }; MODULE_DEVICE_TABLE(pci, rhine_pci_tbl); +/* OpenFirmware identifiers for platform-bus devices + * The .data field is currently only used to store quirks + */ +static u32 vt8500_quirks = rqWOL | rqForceReset | rq6patterns; +static struct of_device_id rhine_of_tbl[] = { + { .compatible = "via,vt8500-rhine", .data = &vt8500_quirks }, + { } /* terminate list */ +}; +MODULE_DEVICE_TABLE(of, rhine_of_tbl); /* Offsets to the device registers. */ enum register_offsets { @@ -338,13 +350,11 @@ enum bcr1_bits { BCR1_MED1=0x80, /* for VT6102 */ }; -#ifdef USE_MMIO /* Registers we check that mmio and reg are the same. */ static const int mmio_verify_registers[] = { RxConfig, TxConfig, IntrEnable, ConfigA, ConfigB, ConfigC, ConfigD, 0 }; -#endif /* Bits in the interrupt status/mask registers. */ enum intr_status_bits { @@ -417,6 +427,12 @@ enum chip_cmd_bits { Cmd1NoTxPoll=0x08, Cmd1Reset=0x80, }; +struct rhine_stats { + u64 packets; + u64 bytes; + struct u64_stats_sync syncp; +}; + struct rhine_private { /* Bit mask for configured VLAN ids */ unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; @@ -440,7 +456,7 @@ struct rhine_private { unsigned char *tx_bufs; dma_addr_t tx_bufs_dma; - struct pci_dev *pdev; + int irq; long pioaddr; struct net_device *dev; struct napi_struct napi; @@ -458,6 +474,8 @@ struct rhine_private { unsigned int cur_rx, dirty_rx; /* Producer/consumer ring indices */ unsigned int cur_tx, dirty_tx; unsigned int rx_buf_sz; /* Based on MTU+slack. */ + struct rhine_stats rx_stats; + struct rhine_stats tx_stats; u8 wolopts; u8 tx_thresh, rx_thresh; @@ -495,12 +513,15 @@ static irqreturn_t rhine_interrupt(int irq, void *dev_instance); static void rhine_tx(struct net_device *dev); static int rhine_rx(struct net_device *dev, int limit); static void rhine_set_rx_mode(struct net_device *dev); -static struct net_device_stats *rhine_get_stats(struct net_device *dev); +static struct rtnl_link_stats64 *rhine_get_stats64(struct net_device *dev, + struct rtnl_link_stats64 *stats); static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); static const struct ethtool_ops netdev_ethtool_ops; static int rhine_close(struct net_device *dev); -static int rhine_vlan_rx_add_vid(struct net_device *dev, unsigned short vid); -static int rhine_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid); +static int rhine_vlan_rx_add_vid(struct net_device *dev, + __be16 proto, u16 vid); +static int rhine_vlan_rx_kill_vid(struct net_device *dev, + __be16 proto, u16 vid); static void rhine_restart_tx(struct net_device *dev); static void rhine_wait_bit(struct rhine_private *rp, u8 reg, u8 mask, bool low) @@ -638,20 +659,46 @@ static void rhine_chip_reset(struct net_device *dev) "failed" : "succeeded"); } -#ifdef USE_MMIO static void enable_mmio(long pioaddr, u32 quirks) { int n; - if (quirks & rqRhineI) { - /* More recent docs say that this bit is reserved ... */ - n = inb(pioaddr + ConfigA) | 0x20; - outb(n, pioaddr + ConfigA); - } else { - n = inb(pioaddr + ConfigD) | 0x80; - outb(n, pioaddr + ConfigD); + + if (quirks & rqNeedEnMMIO) { + if (quirks & rqRhineI) { + /* More recent docs say that this bit is reserved */ + n = inb(pioaddr + ConfigA) | 0x20; + outb(n, pioaddr + ConfigA); + } else { + n = inb(pioaddr + ConfigD) | 0x80; + outb(n, pioaddr + ConfigD); + } } } -#endif + +static inline int verify_mmio(struct device *hwdev, + long pioaddr, + void __iomem *ioaddr, + u32 quirks) +{ + if (quirks & rqNeedEnMMIO) { + int i = 0; + + /* Check that selected MMIO registers match the PIO ones */ + while (mmio_verify_registers[i]) { + int reg = mmio_verify_registers[i++]; + unsigned char a = inb(pioaddr+reg); + unsigned char b = readb(ioaddr+reg); + + if (a != b) { + dev_err(hwdev, + "MMIO do not match PIO [%02x] (%02x != %02x)\n", + reg, a, b); + return -EIO; + } + } + } + return 0; +} /* * Loads bytes 0x00-0x05, 0x6E-0x6F, 0x78-0x7B from EEPROM @@ -671,14 +718,12 @@ static void rhine_reload_eeprom(long pioaddr, struct net_device *dev) if (i > 512) pr_info("%4d cycles used @ %s:%d\n", i, __func__, __LINE__); -#ifdef USE_MMIO /* * Reloading from EEPROM overwrites ConfigA-D, so we must re-enable * MMIO. If reloading EEPROM was done first this could be avoided, but * it is not known if that still works with the "win98-reboot" problem. */ enable_mmio(pioaddr, rp->quirks); -#endif /* Turn off EEPROM-controlled wake-up (magic packet) */ if (rp->quirks & rqWOL) @@ -690,7 +735,7 @@ static void rhine_reload_eeprom(long pioaddr, struct net_device *dev) static void rhine_poll(struct net_device *dev) { struct rhine_private *rp = netdev_priv(dev); - const int irq = rp->pdev->irq; + const int irq = rp->irq; disable_irq(irq); rhine_interrupt(irq, dev); @@ -835,14 +880,15 @@ static void rhine_hw_init(struct net_device *dev, long pioaddr) msleep(5); /* Reload EEPROM controlled bytes cleared by soft reset */ - rhine_reload_eeprom(pioaddr, dev); + if (dev_is_pci(dev->dev.parent)) + rhine_reload_eeprom(pioaddr, dev); } static const struct net_device_ops rhine_netdev_ops = { .ndo_open = rhine_open, .ndo_stop = rhine_close, .ndo_start_xmit = rhine_start_tx, - .ndo_get_stats = rhine_get_stats, + .ndo_get_stats64 = rhine_get_stats64, .ndo_set_rx_mode = rhine_set_rx_mode, .ndo_change_mtu = eth_change_mtu, .ndo_validate_addr = eth_validate_addr, @@ -856,125 +902,40 @@ static const struct net_device_ops rhine_netdev_ops = { #endif }; -static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) +static int rhine_init_one_common(struct device *hwdev, u32 quirks, + long pioaddr, void __iomem *ioaddr, int irq) { struct net_device *dev; struct rhine_private *rp; - int i, rc; - u32 quirks; - long pioaddr; - long memaddr; - void __iomem *ioaddr; - int io_size, phy_id; + int i, rc, phy_id; const char *name; -#ifdef USE_MMIO - int bar = 1; -#else - int bar = 0; -#endif - -/* when built into the kernel, we only print version if device is found */ -#ifndef MODULE - pr_info_once("%s\n", version); -#endif - - io_size = 256; - phy_id = 0; - quirks = 0; - name = "Rhine"; - if (pdev->revision < VTunknown0) { - quirks = rqRhineI; - io_size = 128; - } - else if (pdev->revision >= VT6102) { - quirks = rqWOL | rqForceReset; - if (pdev->revision < VT6105) { - name = "Rhine II"; - quirks |= rqStatusWBRace; /* Rhine-II exclusive */ - } - else { - phy_id = 1; /* Integrated PHY, phy_id fixed to 1 */ - if (pdev->revision >= VT6105_B0) - quirks |= rq6patterns; - if (pdev->revision < VT6105M) - name = "Rhine III"; - else - name = "Rhine III (Management Adapter)"; - } - } - - rc = pci_enable_device(pdev); - if (rc) - goto err_out; /* this should always be supported */ - rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + rc = dma_set_mask(hwdev, DMA_BIT_MASK(32)); if (rc) { - dev_err(&pdev->dev, - "32-bit PCI DMA addresses not supported by the card!?\n"); - goto err_out; - } - - /* sanity check */ - if ((pci_resource_len(pdev, 0) < io_size) || - (pci_resource_len(pdev, 1) < io_size)) { - rc = -EIO; - dev_err(&pdev->dev, "Insufficient PCI resources, aborting\n"); + dev_err(hwdev, "32-bit DMA addresses not supported by the card!?\n"); goto err_out; } - pioaddr = pci_resource_start(pdev, 0); - memaddr = pci_resource_start(pdev, 1); - - pci_set_master(pdev); - dev = alloc_etherdev(sizeof(struct rhine_private)); if (!dev) { rc = -ENOMEM; goto err_out; } - SET_NETDEV_DEV(dev, &pdev->dev); + SET_NETDEV_DEV(dev, hwdev); rp = netdev_priv(dev); rp->dev = dev; rp->quirks = quirks; rp->pioaddr = pioaddr; - rp->pdev = pdev; + rp->base = ioaddr; + rp->irq = irq; rp->msg_enable = netif_msg_init(debug, RHINE_MSG_DEFAULT); - rc = pci_request_regions(pdev, DRV_NAME); - if (rc) - goto err_out_free_netdev; - - ioaddr = pci_iomap(pdev, bar, io_size); - if (!ioaddr) { - rc = -EIO; - dev_err(&pdev->dev, - "ioremap failed for device %s, region 0x%X @ 0x%lX\n", - pci_name(pdev), io_size, memaddr); - goto err_out_free_res; - } - -#ifdef USE_MMIO - enable_mmio(pioaddr, quirks); + phy_id = rp->quirks & rqIntPHY ? 1 : 0; - /* Check that selected MMIO registers match the PIO ones */ - i = 0; - while (mmio_verify_registers[i]) { - int reg = mmio_verify_registers[i++]; - unsigned char a = inb(pioaddr+reg); - unsigned char b = readb(ioaddr+reg); - if (a != b) { - rc = -EIO; - dev_err(&pdev->dev, - "MMIO do not match PIO [%02x] (%02x != %02x)\n", - reg, a, b); - goto err_out_unmap; - } - } -#endif /* USE_MMIO */ - - rp->base = ioaddr; + u64_stats_init(&rp->tx_stats.syncp); + u64_stats_init(&rp->rx_stats.syncp); /* Get chip registers into a sane state */ rhine_power_init(dev); @@ -990,7 +951,6 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) netdev_info(dev, "Using random MAC address: %pM\n", dev->dev_addr); } - memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); /* For Rhine-I/II, phy_id is loaded from EEPROM */ if (!phy_id) @@ -1009,7 +969,7 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) /* The chip-specific entries in the device structure. */ dev->netdev_ops = &rhine_netdev_ops; - dev->ethtool_ops = &netdev_ethtool_ops, + dev->ethtool_ops = &netdev_ethtool_ops; dev->watchdog_timeo = TX_TIMEOUT; netif_napi_add(dev, &rp->napi, rhine_napipoll, 64); @@ -1017,25 +977,29 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (rp->quirks & rqRhineI) dev->features |= NETIF_F_SG|NETIF_F_HW_CSUM; - if (pdev->revision >= VT6105M) - dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX | - NETIF_F_HW_VLAN_FILTER; + if (rp->quirks & rqMgmt) + dev->features |= NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_CTAG_RX | + NETIF_F_HW_VLAN_CTAG_FILTER; /* dev->name not defined before register_netdev()! */ rc = register_netdev(dev); if (rc) - goto err_out_unmap; + goto err_out_free_netdev; + + if (rp->quirks & rqRhineI) + name = "Rhine"; + else if (rp->quirks & rqStatusWBRace) + name = "Rhine II"; + else if (rp->quirks & rqMgmt) + name = "Rhine III (Management Adapter)"; + else + name = "Rhine III"; netdev_info(dev, "VIA %s at 0x%lx, %pM, IRQ %d\n", - name, -#ifdef USE_MMIO - memaddr, -#else - (long)ioaddr, -#endif - dev->dev_addr, pdev->irq); + name, (long)ioaddr, dev->dev_addr, rp->irq); - pci_set_drvdata(pdev, dev); + dev_set_drvdata(hwdev, dev); { u16 mii_cmd; @@ -1064,39 +1028,158 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) return 0; +err_out_free_netdev: + free_netdev(dev); +err_out: + return rc; +} + +static int rhine_init_one_pci(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct device *hwdev = &pdev->dev; + int rc; + long pioaddr, memaddr; + void __iomem *ioaddr; + int io_size = pdev->revision < VTunknown0 ? 128 : 256; + +/* This driver was written to use PCI memory space. Some early versions + * of the Rhine may only work correctly with I/O space accesses. + * TODO: determine for which revisions this is true and assign the flag + * in code as opposed to this Kconfig option (???) + */ +#ifdef CONFIG_VIA_RHINE_MMIO + u32 quirks = rqNeedEnMMIO; +#else + u32 quirks = 0; +#endif + +/* when built into the kernel, we only print version if device is found */ +#ifndef MODULE + pr_info_once("%s\n", version); +#endif + + rc = pci_enable_device(pdev); + if (rc) + goto err_out; + + if (pdev->revision < VTunknown0) { + quirks |= rqRhineI; + } else if (pdev->revision >= VT6102) { + quirks |= rqWOL | rqForceReset; + if (pdev->revision < VT6105) { + quirks |= rqStatusWBRace; + } else { + quirks |= rqIntPHY; + if (pdev->revision >= VT6105_B0) + quirks |= rq6patterns; + if (pdev->revision >= VT6105M) + quirks |= rqMgmt; + } + } + + /* sanity check */ + if ((pci_resource_len(pdev, 0) < io_size) || + (pci_resource_len(pdev, 1) < io_size)) { + rc = -EIO; + dev_err(hwdev, "Insufficient PCI resources, aborting\n"); + goto err_out_pci_disable; + } + + pioaddr = pci_resource_start(pdev, 0); + memaddr = pci_resource_start(pdev, 1); + + pci_set_master(pdev); + + rc = pci_request_regions(pdev, DRV_NAME); + if (rc) + goto err_out_pci_disable; + + ioaddr = pci_iomap(pdev, (quirks & rqNeedEnMMIO ? 1 : 0), io_size); + if (!ioaddr) { + rc = -EIO; + dev_err(hwdev, + "ioremap failed for device %s, region 0x%X @ 0x%lX\n", + dev_name(hwdev), io_size, memaddr); + goto err_out_free_res; + } + + enable_mmio(pioaddr, quirks); + + rc = verify_mmio(hwdev, pioaddr, ioaddr, quirks); + if (rc) + goto err_out_unmap; + + rc = rhine_init_one_common(&pdev->dev, quirks, + pioaddr, ioaddr, pdev->irq); + if (!rc) + return 0; + err_out_unmap: pci_iounmap(pdev, ioaddr); err_out_free_res: pci_release_regions(pdev); -err_out_free_netdev: - free_netdev(dev); +err_out_pci_disable: + pci_disable_device(pdev); err_out: return rc; } +static int rhine_init_one_platform(struct platform_device *pdev) +{ + const struct of_device_id *match; + const u32 *quirks; + int irq; + struct resource *res; + void __iomem *ioaddr; + + match = of_match_device(rhine_of_tbl, &pdev->dev); + if (!match) + return -EINVAL; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + ioaddr = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(ioaddr)) + return PTR_ERR(ioaddr); + + irq = irq_of_parse_and_map(pdev->dev.of_node, 0); + if (!irq) + return -EINVAL; + + quirks = match->data; + if (!quirks) + return -EINVAL; + + return rhine_init_one_common(&pdev->dev, *quirks, + (long)ioaddr, ioaddr, irq); +} + static int alloc_ring(struct net_device* dev) { struct rhine_private *rp = netdev_priv(dev); + struct device *hwdev = dev->dev.parent; void *ring; dma_addr_t ring_dma; - ring = pci_alloc_consistent(rp->pdev, - RX_RING_SIZE * sizeof(struct rx_desc) + - TX_RING_SIZE * sizeof(struct tx_desc), - &ring_dma); + ring = dma_alloc_coherent(hwdev, + RX_RING_SIZE * sizeof(struct rx_desc) + + TX_RING_SIZE * sizeof(struct tx_desc), + &ring_dma, + GFP_ATOMIC); if (!ring) { netdev_err(dev, "Could not allocate DMA memory\n"); return -ENOMEM; } if (rp->quirks & rqRhineI) { - rp->tx_bufs = pci_alloc_consistent(rp->pdev, - PKT_BUF_SZ * TX_RING_SIZE, - &rp->tx_bufs_dma); + rp->tx_bufs = dma_alloc_coherent(hwdev, + PKT_BUF_SZ * TX_RING_SIZE, + &rp->tx_bufs_dma, + GFP_ATOMIC); if (rp->tx_bufs == NULL) { - pci_free_consistent(rp->pdev, - RX_RING_SIZE * sizeof(struct rx_desc) + - TX_RING_SIZE * sizeof(struct tx_desc), - ring, ring_dma); + dma_free_coherent(hwdev, + RX_RING_SIZE * sizeof(struct rx_desc) + + TX_RING_SIZE * sizeof(struct tx_desc), + ring, ring_dma); return -ENOMEM; } } @@ -1112,16 +1195,17 @@ static int alloc_ring(struct net_device* dev) static void free_ring(struct net_device* dev) { struct rhine_private *rp = netdev_priv(dev); + struct device *hwdev = dev->dev.parent; - pci_free_consistent(rp->pdev, - RX_RING_SIZE * sizeof(struct rx_desc) + - TX_RING_SIZE * sizeof(struct tx_desc), - rp->rx_ring, rp->rx_ring_dma); + dma_free_coherent(hwdev, + RX_RING_SIZE * sizeof(struct rx_desc) + + TX_RING_SIZE * sizeof(struct tx_desc), + rp->rx_ring, rp->rx_ring_dma); rp->tx_ring = NULL; if (rp->tx_bufs) - pci_free_consistent(rp->pdev, PKT_BUF_SZ * TX_RING_SIZE, - rp->tx_bufs, rp->tx_bufs_dma); + dma_free_coherent(hwdev, PKT_BUF_SZ * TX_RING_SIZE, + rp->tx_bufs, rp->tx_bufs_dma); rp->tx_bufs = NULL; @@ -1130,6 +1214,7 @@ static void free_ring(struct net_device* dev) static void alloc_rbufs(struct net_device *dev) { struct rhine_private *rp = netdev_priv(dev); + struct device *hwdev = dev->dev.parent; dma_addr_t next; int i; @@ -1158,9 +1243,13 @@ static void alloc_rbufs(struct net_device *dev) break; rp->rx_skbuff_dma[i] = - pci_map_single(rp->pdev, skb->data, rp->rx_buf_sz, - PCI_DMA_FROMDEVICE); - + dma_map_single(hwdev, skb->data, rp->rx_buf_sz, + DMA_FROM_DEVICE); + if (dma_mapping_error(hwdev, rp->rx_skbuff_dma[i])) { + rp->rx_skbuff_dma[i] = 0; + dev_kfree_skb(skb); + break; + } rp->rx_ring[i].addr = cpu_to_le32(rp->rx_skbuff_dma[i]); rp->rx_ring[i].rx_status = cpu_to_le32(DescOwn); } @@ -1170,6 +1259,7 @@ static void alloc_rbufs(struct net_device *dev) static void free_rbufs(struct net_device* dev) { struct rhine_private *rp = netdev_priv(dev); + struct device *hwdev = dev->dev.parent; int i; /* Free all the skbuffs in the Rx queue. */ @@ -1177,9 +1267,9 @@ static void free_rbufs(struct net_device* dev) rp->rx_ring[i].rx_status = 0; rp->rx_ring[i].addr = cpu_to_le32(0xBADF00D0); /* An invalid address. */ if (rp->rx_skbuff[i]) { - pci_unmap_single(rp->pdev, + dma_unmap_single(hwdev, rp->rx_skbuff_dma[i], - rp->rx_buf_sz, PCI_DMA_FROMDEVICE); + rp->rx_buf_sz, DMA_FROM_DEVICE); dev_kfree_skb(rp->rx_skbuff[i]); } rp->rx_skbuff[i] = NULL; @@ -1210,6 +1300,7 @@ static void alloc_tbufs(struct net_device* dev) static void free_tbufs(struct net_device* dev) { struct rhine_private *rp = netdev_priv(dev); + struct device *hwdev = dev->dev.parent; int i; for (i = 0; i < TX_RING_SIZE; i++) { @@ -1218,10 +1309,10 @@ static void free_tbufs(struct net_device* dev) rp->tx_ring[i].addr = cpu_to_le32(0xBADF00D0); /* An invalid address. */ if (rp->tx_skbuff[i]) { if (rp->tx_skbuff_dma[i]) { - pci_unmap_single(rp->pdev, + dma_unmap_single(hwdev, rp->tx_skbuff_dma[i], rp->tx_skbuff[i]->len, - PCI_DMA_TODEVICE); + DMA_TO_DEVICE); } dev_kfree_skb(rp->tx_skbuff[i]); } @@ -1258,8 +1349,9 @@ static void rhine_set_carrier(struct mii_if_info *mii) /* autoneg is off: Link is always assumed to be up */ if (!netif_carrier_ok(dev)) netif_carrier_on(dev); - } else /* Let MMI library update carrier status */ - rhine_check_media(dev, 0); + } + + rhine_check_media(dev, 0); netif_info(rp, link, dev, "force_media %d, carrier %d\n", mii->force_media, netif_carrier_ok(dev)); @@ -1406,7 +1498,7 @@ static void rhine_update_vcam(struct net_device *dev) rhine_set_vlan_cam_mask(ioaddr, vCAMmask); } -static int rhine_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) +static int rhine_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) { struct rhine_private *rp = netdev_priv(dev); @@ -1417,7 +1509,7 @@ static int rhine_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) return 0; } -static int rhine_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) +static int rhine_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) { struct rhine_private *rp = netdev_priv(dev); @@ -1449,7 +1541,7 @@ static void init_registers(struct net_device *dev) rhine_set_rx_mode(dev); - if (rp->pdev->revision >= VT6105M) + if (rp->quirks & rqMgmt) rhine_init_cam_filter(dev); napi_enable(&rp->napi); @@ -1561,16 +1653,15 @@ static int rhine_open(struct net_device *dev) void __iomem *ioaddr = rp->base; int rc; - rc = request_irq(rp->pdev->irq, rhine_interrupt, IRQF_SHARED, dev->name, - dev); + rc = request_irq(rp->irq, rhine_interrupt, IRQF_SHARED, dev->name, dev); if (rc) return rc; - netif_dbg(rp, ifup, dev, "%s() irq %d\n", __func__, rp->pdev->irq); + netif_dbg(rp, ifup, dev, "%s() irq %d\n", __func__, rp->irq); rc = alloc_ring(dev); if (rc) { - free_irq(rp->pdev->irq, dev); + free_irq(rp->irq, dev); return rc; } alloc_rbufs(dev); @@ -1600,6 +1691,7 @@ static void rhine_reset_task(struct work_struct *work) goto out_unlock; napi_disable(&rp->napi); + netif_tx_disable(dev); spin_lock_bh(&rp->lock); /* clear all descriptors */ @@ -1638,6 +1730,7 @@ static netdev_tx_t rhine_start_tx(struct sk_buff *skb, struct net_device *dev) { struct rhine_private *rp = netdev_priv(dev); + struct device *hwdev = dev->dev.parent; void __iomem *ioaddr = rp->base; unsigned entry; @@ -1657,7 +1750,7 @@ static netdev_tx_t rhine_start_tx(struct sk_buff *skb, /* Must use alignment buffer. */ if (skb->len > PKT_BUF_SZ) { /* packet too long, drop it */ - dev_kfree_skb(skb); + dev_kfree_skb_any(skb); rp->tx_skbuff[entry] = NULL; dev->stats.tx_dropped++; return NETDEV_TX_OK; @@ -1674,8 +1767,14 @@ static netdev_tx_t rhine_start_tx(struct sk_buff *skb, rp->tx_bufs)); } else { rp->tx_skbuff_dma[entry] = - pci_map_single(rp->pdev, skb->data, skb->len, - PCI_DMA_TODEVICE); + dma_map_single(hwdev, skb->data, skb->len, + DMA_TO_DEVICE); + if (dma_mapping_error(hwdev, rp->tx_skbuff_dma[entry])) { + dev_kfree_skb_any(skb); + rp->tx_skbuff_dma[entry] = 0; + dev->stats.tx_dropped++; + return NETDEV_TX_OK; + } rp->tx_ring[entry].addr = cpu_to_le32(rp->tx_skbuff_dma[entry]); } @@ -1683,7 +1782,12 @@ static netdev_tx_t rhine_start_tx(struct sk_buff *skb, cpu_to_le32(TXDESC | (skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN)); if (unlikely(vlan_tx_tag_present(skb))) { - rp->tx_ring[entry].tx_status = cpu_to_le32((vlan_tx_tag_get(skb)) << 16); + u16 vid_pcp = vlan_tx_tag_get(skb); + + /* drop CFI/DEI bit, register needs VID and PCP */ + vid_pcp = (vid_pcp & VLAN_VID_MASK) | + ((vid_pcp & VLAN_PRIO_MASK) >> 1); + rp->tx_ring[entry].tx_status = cpu_to_le32((vid_pcp) << 16); /* request tagging */ rp->tx_ring[entry].desc_length |= cpu_to_le32(0x020000); } @@ -1756,6 +1860,7 @@ static irqreturn_t rhine_interrupt(int irq, void *dev_instance) static void rhine_tx(struct net_device *dev) { struct rhine_private *rp = netdev_priv(dev); + struct device *hwdev = dev->dev.parent; int txstatus = 0, entry = rp->dirty_tx % TX_RING_SIZE; /* find and cleanup dirty tx descriptors */ @@ -1791,17 +1896,20 @@ static void rhine_tx(struct net_device *dev) dev->stats.collisions += txstatus & 0x0F; netif_dbg(rp, tx_done, dev, "collisions: %1.1x:%1.1x\n", (txstatus >> 3) & 0xF, txstatus & 0xF); - dev->stats.tx_bytes += rp->tx_skbuff[entry]->len; - dev->stats.tx_packets++; + + u64_stats_update_begin(&rp->tx_stats.syncp); + rp->tx_stats.bytes += rp->tx_skbuff[entry]->len; + rp->tx_stats.packets++; + u64_stats_update_end(&rp->tx_stats.syncp); } /* Free the original skb. */ if (rp->tx_skbuff_dma[entry]) { - pci_unmap_single(rp->pdev, + dma_unmap_single(hwdev, rp->tx_skbuff_dma[entry], rp->tx_skbuff[entry]->len, - PCI_DMA_TODEVICE); + DMA_TO_DEVICE); } - dev_kfree_skb_irq(rp->tx_skbuff[entry]); + dev_consume_skb_any(rp->tx_skbuff[entry]); rp->tx_skbuff[entry] = NULL; entry = (++rp->dirty_tx) % TX_RING_SIZE; } @@ -1828,6 +1936,7 @@ static inline u16 rhine_get_vlan_tci(struct sk_buff *skb, int data_size) static int rhine_rx(struct net_device *dev, int limit) { struct rhine_private *rp = netdev_priv(dev); + struct device *hwdev = dev->dev.parent; int count; int entry = rp->cur_rx % RX_RING_SIZE; @@ -1889,19 +1998,19 @@ static int rhine_rx(struct net_device *dev, int limit) if (pkt_len < rx_copybreak) skb = netdev_alloc_skb_ip_align(dev, pkt_len); if (skb) { - pci_dma_sync_single_for_cpu(rp->pdev, - rp->rx_skbuff_dma[entry], - rp->rx_buf_sz, - PCI_DMA_FROMDEVICE); + dma_sync_single_for_cpu(hwdev, + rp->rx_skbuff_dma[entry], + rp->rx_buf_sz, + DMA_FROM_DEVICE); skb_copy_to_linear_data(skb, rp->rx_skbuff[entry]->data, pkt_len); skb_put(skb, pkt_len); - pci_dma_sync_single_for_device(rp->pdev, - rp->rx_skbuff_dma[entry], - rp->rx_buf_sz, - PCI_DMA_FROMDEVICE); + dma_sync_single_for_device(hwdev, + rp->rx_skbuff_dma[entry], + rp->rx_buf_sz, + DMA_FROM_DEVICE); } else { skb = rp->rx_skbuff[entry]; if (skb == NULL) { @@ -1910,10 +2019,10 @@ static int rhine_rx(struct net_device *dev, int limit) } rp->rx_skbuff[entry] = NULL; skb_put(skb, pkt_len); - pci_unmap_single(rp->pdev, + dma_unmap_single(hwdev, rp->rx_skbuff_dma[entry], rp->rx_buf_sz, - PCI_DMA_FROMDEVICE); + DMA_FROM_DEVICE); } if (unlikely(desc_length & DescTag)) @@ -1922,10 +2031,13 @@ static int rhine_rx(struct net_device *dev, int limit) skb->protocol = eth_type_trans(skb, dev); if (unlikely(desc_length & DescTag)) - __vlan_hwaccel_put_tag(skb, vlan_tci); + __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tci); netif_receive_skb(skb); - dev->stats.rx_bytes += pkt_len; - dev->stats.rx_packets++; + + u64_stats_update_begin(&rp->rx_stats.syncp); + rp->rx_stats.bytes += pkt_len; + rp->rx_stats.packets++; + u64_stats_update_end(&rp->rx_stats.syncp); } entry = (++rp->cur_rx) % RX_RING_SIZE; rp->rx_head_desc = &rp->rx_ring[entry]; @@ -1941,9 +2053,15 @@ static int rhine_rx(struct net_device *dev, int limit) if (skb == NULL) break; /* Better luck next round. */ rp->rx_skbuff_dma[entry] = - pci_map_single(rp->pdev, skb->data, + dma_map_single(hwdev, skb->data, rp->rx_buf_sz, - PCI_DMA_FROMDEVICE); + DMA_FROM_DEVICE); + if (dma_mapping_error(hwdev, + rp->rx_skbuff_dma[entry])) { + dev_kfree_skb(skb); + rp->rx_skbuff_dma[entry] = 0; + break; + } rp->rx_ring[entry].addr = cpu_to_le32(rp->rx_skbuff_dma[entry]); } rp->rx_ring[entry].rx_status = cpu_to_le32(DescOwn); @@ -2010,25 +2128,37 @@ static void rhine_slow_event_task(struct work_struct *work) if (intr_status & IntrPCIErr) netif_warn(rp, hw, dev, "PCI error\n"); - napi_disable(&rp->napi); - rhine_irq_disable(rp); - /* Slow and safe. Consider __napi_schedule as a replacement ? */ - napi_enable(&rp->napi); - napi_schedule(&rp->napi); + iowrite16(RHINE_EVENT & 0xffff, rp->base + IntrEnable); out_unlock: mutex_unlock(&rp->task_lock); } -static struct net_device_stats *rhine_get_stats(struct net_device *dev) +static struct rtnl_link_stats64 * +rhine_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) { struct rhine_private *rp = netdev_priv(dev); + unsigned int start; spin_lock_bh(&rp->lock); rhine_update_rx_crc_and_missed_errord(rp); spin_unlock_bh(&rp->lock); - return &dev->stats; + netdev_stats_to_stats64(stats, &dev->stats); + + do { + start = u64_stats_fetch_begin_irq(&rp->rx_stats.syncp); + stats->rx_packets = rp->rx_stats.packets; + stats->rx_bytes = rp->rx_stats.bytes; + } while (u64_stats_fetch_retry_irq(&rp->rx_stats.syncp, start)); + + do { + start = u64_stats_fetch_begin_irq(&rp->tx_stats.syncp); + stats->tx_packets = rp->tx_stats.packets; + stats->tx_bytes = rp->tx_stats.bytes; + } while (u64_stats_fetch_retry_irq(&rp->tx_stats.syncp, start)); + + return stats; } static void rhine_set_rx_mode(struct net_device *dev) @@ -2048,7 +2178,7 @@ static void rhine_set_rx_mode(struct net_device *dev) /* Too many to match, or accept all multicasts. */ iowrite32(0xffffffff, ioaddr + MulticastFilter0); iowrite32(0xffffffff, ioaddr + MulticastFilter1); - } else if (rp->pdev->revision >= VT6105M) { + } else if (rp->quirks & rqMgmt) { int i = 0; u32 mCAMmask = 0; /* 32 mCAMs (6105M and better) */ netdev_for_each_mc_addr(ha, dev) { @@ -2070,7 +2200,7 @@ static void rhine_set_rx_mode(struct net_device *dev) iowrite32(mc_filter[1], ioaddr + MulticastFilter1); } /* enable/disable VLAN receive filtering */ - if (rp->pdev->revision >= VT6105M) { + if (rp->quirks & rqMgmt) { if (dev->flags & IFF_PROMISC) BYTE_REG_BITS_OFF(BCR1_VIDFR, ioaddr + PCIBusConfig1); else @@ -2081,11 +2211,11 @@ static void rhine_set_rx_mode(struct net_device *dev) static void netdev_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { - struct rhine_private *rp = netdev_priv(dev); + struct device *hwdev = dev->dev.parent; strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); strlcpy(info->version, DRV_VERSION, sizeof(info->version)); - strlcpy(info->bus_info, pci_name(rp->pdev), sizeof(info->bus_info)); + strlcpy(info->bus_info, dev_name(hwdev), sizeof(info->bus_info)); } static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) @@ -2222,7 +2352,7 @@ static int rhine_close(struct net_device *dev) /* Stop the chip's Tx and Rx processes. */ iowrite16(CmdStop, ioaddr + ChipCmd); - free_irq(rp->pdev->irq, dev); + free_irq(rp->irq, dev); free_rbufs(dev); free_tbufs(dev); free_ring(dev); @@ -2231,7 +2361,7 @@ static int rhine_close(struct net_device *dev) } -static void rhine_remove_one(struct pci_dev *pdev) +static void rhine_remove_one_pci(struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata(pdev); struct rhine_private *rp = netdev_priv(dev); @@ -2243,10 +2373,23 @@ static void rhine_remove_one(struct pci_dev *pdev) free_netdev(dev); pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); } -static void rhine_shutdown (struct pci_dev *pdev) +static int rhine_remove_one_platform(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + struct rhine_private *rp = netdev_priv(dev); + + unregister_netdev(dev); + + iounmap(rp->base); + + free_netdev(dev); + + return 0; +} + +static void rhine_shutdown_pci(struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata(pdev); struct rhine_private *rp = netdev_priv(dev); @@ -2300,8 +2443,7 @@ static void rhine_shutdown (struct pci_dev *pdev) #ifdef CONFIG_PM_SLEEP static int rhine_suspend(struct device *device) { - struct pci_dev *pdev = to_pci_dev(device); - struct net_device *dev = pci_get_drvdata(pdev); + struct net_device *dev = dev_get_drvdata(device); struct rhine_private *rp = netdev_priv(dev); if (!netif_running(dev)) @@ -2313,23 +2455,21 @@ static int rhine_suspend(struct device *device) netif_device_detach(dev); - rhine_shutdown(pdev); + if (dev_is_pci(device)) + rhine_shutdown_pci(to_pci_dev(device)); return 0; } static int rhine_resume(struct device *device) { - struct pci_dev *pdev = to_pci_dev(device); - struct net_device *dev = pci_get_drvdata(pdev); + struct net_device *dev = dev_get_drvdata(device); struct rhine_private *rp = netdev_priv(dev); if (!netif_running(dev)) return 0; -#ifdef USE_MMIO enable_mmio(rp->pioaddr, rp->quirks); -#endif rhine_power_init(dev); free_tbufs(dev); free_rbufs(dev); @@ -2354,16 +2494,27 @@ static SIMPLE_DEV_PM_OPS(rhine_pm_ops, rhine_suspend, rhine_resume); #endif /* !CONFIG_PM_SLEEP */ -static struct pci_driver rhine_driver = { +static struct pci_driver rhine_driver_pci = { .name = DRV_NAME, .id_table = rhine_pci_tbl, - .probe = rhine_init_one, - .remove = rhine_remove_one, - .shutdown = rhine_shutdown, + .probe = rhine_init_one_pci, + .remove = rhine_remove_one_pci, + .shutdown = rhine_shutdown_pci, .driver.pm = RHINE_PM_OPS, }; -static struct dmi_system_id __initdata rhine_dmi_table[] = { +static struct platform_driver rhine_driver_platform = { + .probe = rhine_init_one_platform, + .remove = rhine_remove_one_platform, + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = rhine_of_tbl, + .pm = RHINE_PM_OPS, + } +}; + +static struct dmi_system_id rhine_dmi_table[] __initdata = { { .ident = "EPIA-M", .matches = { @@ -2383,6 +2534,8 @@ static struct dmi_system_id __initdata rhine_dmi_table[] = { static int __init rhine_init(void) { + int ret_pci, ret_platform; + /* when a module, this is printed whether or not devices are found in probe */ #ifdef MODULE pr_info("%s\n", version); @@ -2395,13 +2548,19 @@ static int __init rhine_init(void) else if (avoid_D3) pr_info("avoid_D3 set\n"); - return pci_register_driver(&rhine_driver); + ret_pci = pci_register_driver(&rhine_driver_pci); + ret_platform = platform_driver_register(&rhine_driver_platform); + if ((ret_pci < 0) && (ret_platform < 0)) + return ret_pci; + + return 0; } static void __exit rhine_cleanup(void) { - pci_unregister_driver(&rhine_driver); + platform_driver_unregister(&rhine_driver_platform); + pci_unregister_driver(&rhine_driver_pci); } |