X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fnet%2Fcpmac.c;h=3c58db5952852ad5319741c7135e452e2ad086a0;hb=6edae7a4848ae5b363dcc7d8ee4f3f7a34e31e36;hp=9da7ff437031fec11854152851c344608ec183ff;hpb=9d9326d3bc0ea9a8bbe40bf3e5e66c7b9858caa0;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c index 9da7ff4..3c58db5 100644 --- a/drivers/net/cpmac.c +++ b/drivers/net/cpmac.c @@ -26,9 +26,9 @@ #include #include #include -#include #include +#include #include #include #include @@ -37,11 +37,14 @@ #include #include #include +#include #include +#include MODULE_AUTHOR("Eugene Konev "); MODULE_DESCRIPTION("TI AR7 ethernet driver (CPMAC)"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:cpmac"); static int debug_level = 8; static int dumb_switch; @@ -53,9 +56,9 @@ module_param(dumb_switch, int, 0444); MODULE_PARM_DESC(debug_level, "Number of NETIF_MSG bits to enable"); MODULE_PARM_DESC(dumb_switch, "Assume switch is not connected to MDIO bus"); -#define CPMAC_VERSION "0.5.0" -/* frame size + 802.1q tag */ -#define CPMAC_SKB_SIZE (ETH_FRAME_LEN + 4) +#define CPMAC_VERSION "0.5.2" +/* frame size + 802.1q tag + FCS size */ +#define CPMAC_SKB_SIZE (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN) #define CPMAC_QUEUES 8 /* Ethernet registers */ @@ -186,6 +189,7 @@ struct cpmac_desc { #define CPMAC_EOQ 0x1000 struct sk_buff *skb; struct cpmac_desc *next; + struct cpmac_desc *prev; dma_addr_t mapping; dma_addr_t data_mapping; }; @@ -200,13 +204,14 @@ struct cpmac_priv { void __iomem *regs; struct mii_bus *mii_bus; struct phy_device *phy; - char phy_name[BUS_ID_SIZE]; + char phy_name[MII_BUS_ID_SIZE + 3]; int oldlink, oldspeed, oldduplex; u32 msg_enable; struct net_device *dev; struct work_struct reset_work; struct platform_device *pdev; struct napi_struct napi; + atomic_t reset_pending; }; static irqreturn_t cpmac_irq(int, void *); @@ -240,6 +245,16 @@ static void cpmac_dump_desc(struct net_device *dev, struct cpmac_desc *desc) printk("\n"); } +static void cpmac_dump_all_desc(struct net_device *dev) +{ + struct cpmac_priv *priv = netdev_priv(dev); + struct cpmac_desc *dump = priv->rx_head; + do { + cpmac_dump_desc(dev, dump); + dump = dump->next; + } while (dump != priv->rx_head); +} + static void cpmac_dump_skb(struct net_device *dev, struct sk_buff *skb) { int i; @@ -281,21 +296,22 @@ static int cpmac_mdio_write(struct mii_bus *bus, int phy_id, static int cpmac_mdio_reset(struct mii_bus *bus) { + struct clk *cpmac_clk; + + cpmac_clk = clk_get(&bus->dev, "cpmac"); + if (IS_ERR(cpmac_clk)) { + printk(KERN_ERR "unable to get cpmac clock\n"); + return -1; + } ar7_device_reset(AR7_RESET_BIT_MDIO); cpmac_write(bus->priv, CPMAC_MDIO_CONTROL, MDIOC_ENABLE | - MDIOC_CLKDIV(ar7_cpmac_freq() / 2200000 - 1)); + MDIOC_CLKDIV(clk_get_rate(cpmac_clk) / 2200000 - 1)); return 0; } static int mii_irqs[PHY_MAX_ADDR] = { PHY_POLL, }; -static struct mii_bus cpmac_mii = { - .name = "cpmac-mii", - .read = cpmac_mdio_read, - .write = cpmac_mdio_write, - .reset = cpmac_mdio_reset, - .irq = mii_irqs, -}; +static struct mii_bus *cpmac_mii; static int cpmac_config(struct net_device *dev, struct ifmap *map) { @@ -312,8 +328,7 @@ static int cpmac_config(struct net_device *dev, struct ifmap *map) static void cpmac_set_multicast_list(struct net_device *dev) { - struct dev_mc_list *iter; - int i; + struct netdev_hw_addr *ha; u8 tmp; u32 mbp, bit, hash[2] = { 0, }; struct cpmac_priv *priv = netdev_priv(dev); @@ -333,20 +348,19 @@ static void cpmac_set_multicast_list(struct net_device *dev) * cpmac uses some strange mac address hashing * (not crc32) */ - for (i = 0, iter = dev->mc_list; i < dev->mc_count; - i++, iter = iter->next) { + netdev_for_each_mc_addr(ha, dev) { bit = 0; - tmp = iter->dmi_addr[0]; + tmp = ha->addr[0]; bit ^= (tmp >> 2) ^ (tmp << 4); - tmp = iter->dmi_addr[1]; + tmp = ha->addr[1]; bit ^= (tmp >> 4) ^ (tmp << 2); - tmp = iter->dmi_addr[2]; + tmp = ha->addr[2]; bit ^= (tmp >> 6) ^ tmp; - tmp = iter->dmi_addr[3]; + tmp = ha->addr[3]; bit ^= (tmp >> 2) ^ (tmp << 4); - tmp = iter->dmi_addr[4]; + tmp = ha->addr[4]; bit ^= (tmp >> 4) ^ (tmp << 2); - tmp = iter->dmi_addr[5]; + tmp = ha->addr[5]; bit ^= (tmp >> 6) ^ tmp; bit &= 0x3f; hash[bit / 32] |= 1 << (bit % 32); @@ -373,9 +387,8 @@ static struct sk_buff *cpmac_rx_one(struct cpmac_priv *priv, return NULL; } - skb = netdev_alloc_skb(priv->dev, CPMAC_SKB_SIZE); + skb = netdev_alloc_skb_ip_align(priv->dev, CPMAC_SKB_SIZE); if (likely(skb)) { - skb_reserve(skb, 2); skb_put(desc->skb, desc->datalen); desc->skb->protocol = eth_type_trans(desc->skb, priv->dev); desc->skb->ip_summed = CHECKSUM_NONE; @@ -411,21 +424,42 @@ static struct sk_buff *cpmac_rx_one(struct cpmac_priv *priv, static int cpmac_poll(struct napi_struct *napi, int budget) { struct sk_buff *skb; - struct cpmac_desc *desc; - int received = 0; + struct cpmac_desc *desc, *restart; struct cpmac_priv *priv = container_of(napi, struct cpmac_priv, napi); + int received = 0, processed = 0; spin_lock(&priv->rx_lock); if (unlikely(!priv->rx_head)) { if (netif_msg_rx_err(priv) && net_ratelimit()) printk(KERN_WARNING "%s: rx: polling, but no queue\n", priv->dev->name); - netif_rx_complete(priv->dev, napi); + spin_unlock(&priv->rx_lock); + napi_complete(napi); return 0; } desc = priv->rx_head; + restart = NULL; while (((desc->dataflags & CPMAC_OWN) == 0) && (received < budget)) { + processed++; + + if ((desc->dataflags & CPMAC_EOQ) != 0) { + /* The last update to eoq->hw_next didn't happen + * soon enough, and the receiver stopped here. + *Remember this descriptor so we can restart + * the receiver after freeing some space. + */ + if (unlikely(restart)) { + if (netif_msg_rx_err(priv)) + printk(KERN_ERR "%s: poll found a" + " duplicate EOQ: %p and %p\n", + priv->dev->name, restart, desc); + goto fatal_error; + } + + restart = desc->next; + } + skb = cpmac_rx_one(priv, desc); if (likely(skb)) { netif_receive_skb(skb); @@ -434,19 +468,90 @@ static int cpmac_poll(struct napi_struct *napi, int budget) desc = desc->next; } + if (desc != priv->rx_head) { + /* We freed some buffers, but not the whole ring, + * add what we did free to the rx list */ + desc->prev->hw_next = (u32)0; + priv->rx_head->prev->hw_next = priv->rx_head->mapping; + } + + /* Optimization: If we did not actually process an EOQ (perhaps because + * of quota limits), check to see if the tail of the queue has EOQ set. + * We should immediately restart in that case so that the receiver can + * restart and run in parallel with more packet processing. + * This lets us handle slightly larger bursts before running + * out of ring space (assuming dev->weight < ring_size) */ + + if (!restart && + (priv->rx_head->prev->dataflags & (CPMAC_OWN|CPMAC_EOQ)) + == CPMAC_EOQ && + (priv->rx_head->dataflags & CPMAC_OWN) != 0) { + /* reset EOQ so the poll loop (above) doesn't try to + * restart this when it eventually gets to this descriptor. + */ + priv->rx_head->prev->dataflags &= ~CPMAC_EOQ; + restart = priv->rx_head; + } + + if (restart) { + priv->dev->stats.rx_errors++; + priv->dev->stats.rx_fifo_errors++; + if (netif_msg_rx_err(priv) && net_ratelimit()) + printk(KERN_WARNING "%s: rx dma ring overrun\n", + priv->dev->name); + + if (unlikely((restart->dataflags & CPMAC_OWN) == 0)) { + if (netif_msg_drv(priv)) + printk(KERN_ERR "%s: cpmac_poll is trying to " + "restart rx from a descriptor that's " + "not free: %p\n", + priv->dev->name, restart); + goto fatal_error; + } + + cpmac_write(priv->regs, CPMAC_RX_PTR(0), restart->mapping); + } + priv->rx_head = desc; spin_unlock(&priv->rx_lock); if (unlikely(netif_msg_rx_status(priv))) printk(KERN_DEBUG "%s: poll processed %d packets\n", priv->dev->name, received); - if (desc->dataflags & CPMAC_OWN) { - netif_rx_complete(priv->dev, napi); - cpmac_write(priv->regs, CPMAC_RX_PTR(0), (u32)desc->mapping); + if (processed == 0) { + /* we ran out of packets to read, + * revert to interrupt-driven mode */ + napi_complete(napi); cpmac_write(priv->regs, CPMAC_RX_INT_ENABLE, 1); return 0; } return 1; + +fatal_error: + /* Something went horribly wrong. + * Reset hardware to try to recover rather than wedging. */ + + if (netif_msg_drv(priv)) { + printk(KERN_ERR "%s: cpmac_poll is confused. " + "Resetting hardware\n", priv->dev->name); + cpmac_dump_all_desc(priv->dev); + printk(KERN_DEBUG "%s: RX_PTR(0)=0x%08x RX_ACK(0)=0x%08x\n", + priv->dev->name, + cpmac_read(priv->regs, CPMAC_RX_PTR(0)), + cpmac_read(priv->regs, CPMAC_RX_ACK(0))); + } + + spin_unlock(&priv->rx_lock); + napi_complete(napi); + netif_tx_stop_all_queues(priv->dev); + napi_disable(&priv->napi); + + atomic_inc(&priv->reset_pending); + cpmac_hw_stop(priv->dev); + if (!schedule_work(&priv->reset_work)) + atomic_dec(&priv->reset_pending); + return 0; + } static int cpmac_start_xmit(struct sk_buff *skb, struct net_device *dev) @@ -455,16 +560,15 @@ static int cpmac_start_xmit(struct sk_buff *skb, struct net_device *dev) struct cpmac_desc *desc; struct cpmac_priv *priv = netdev_priv(dev); + if (unlikely(atomic_read(&priv->reset_pending))) + return NETDEV_TX_BUSY; + if (unlikely(skb_padto(skb, ETH_ZLEN))) return NETDEV_TX_OK; len = max(skb->len, ETH_ZLEN); queue = skb_get_queue_mapping(skb); -#ifdef CONFIG_NETDEVICES_MULTIQUEUE netif_stop_subqueue(dev, queue); -#else - netif_stop_queue(dev); -#endif desc = &priv->desc_ring[queue]; if (unlikely(desc->dataflags & CPMAC_OWN)) { @@ -475,7 +579,6 @@ static int cpmac_start_xmit(struct sk_buff *skb, struct net_device *dev) } spin_lock(&priv->lock); - dev->trans_start = jiffies; spin_unlock(&priv->lock); desc->dataflags = CPMAC_SOP | CPMAC_EOP | CPMAC_OWN; desc->skb = skb; @@ -517,24 +620,14 @@ static void cpmac_end_xmit(struct net_device *dev, int queue) dev_kfree_skb_irq(desc->skb); desc->skb = NULL; -#ifdef CONFIG_NETDEVICES_MULTIQUEUE - if (netif_subqueue_stopped(dev, queue)) + if (__netif_subqueue_stopped(dev, queue)) netif_wake_subqueue(dev, queue); -#else - if (netif_queue_stopped(dev)) - netif_wake_queue(dev); -#endif } else { if (netif_msg_tx_err(priv) && net_ratelimit()) printk(KERN_WARNING "%s: end_xmit: spurious interrupt\n", dev->name); -#ifdef CONFIG_NETDEVICES_MULTIQUEUE - if (netif_subqueue_stopped(dev, queue)) + if (__netif_subqueue_stopped(dev, queue)) netif_wake_subqueue(dev, queue); -#else - if (netif_queue_stopped(dev)) - netif_wake_queue(dev); -#endif } } @@ -620,8 +713,10 @@ static void cpmac_clear_rx(struct net_device *dev) desc->dataflags = CPMAC_OWN; dev->stats.rx_dropped++; } + desc->hw_next = desc->next->mapping; desc = desc->next; } + priv->rx_head->prev->hw_next = 0; } static void cpmac_clear_tx(struct net_device *dev) @@ -634,8 +729,7 @@ static void cpmac_clear_tx(struct net_device *dev) priv->desc_ring[i].dataflags = 0; if (priv->desc_ring[i].skb) { dev_kfree_skb_any(priv->desc_ring[i].skb); - if (netif_subqueue_stopped(dev, i)) - netif_wake_subqueue(dev, i); + priv->desc_ring[i].skb = NULL; } } } @@ -650,8 +744,46 @@ static void cpmac_hw_error(struct work_struct *work) spin_unlock(&priv->rx_lock); cpmac_clear_tx(priv->dev); cpmac_hw_start(priv->dev); - napi_enable(&priv->napi); - netif_start_queue(priv->dev); + barrier(); + atomic_dec(&priv->reset_pending); + + netif_tx_wake_all_queues(priv->dev); + cpmac_write(priv->regs, CPMAC_MAC_INT_ENABLE, 3); +} + +static void cpmac_check_status(struct net_device *dev) +{ + struct cpmac_priv *priv = netdev_priv(dev); + + u32 macstatus = cpmac_read(priv->regs, CPMAC_MAC_STATUS); + int rx_channel = (macstatus >> 8) & 7; + int rx_code = (macstatus >> 12) & 15; + int tx_channel = (macstatus >> 16) & 7; + int tx_code = (macstatus >> 20) & 15; + + if (rx_code || tx_code) { + if (netif_msg_drv(priv) && net_ratelimit()) { + /* Can't find any documentation on what these + *error codes actually are. So just log them and hope.. + */ + if (rx_code) + printk(KERN_WARNING "%s: host error %d on rx " + "channel %d (macstatus %08x), resetting\n", + dev->name, rx_code, rx_channel, macstatus); + if (tx_code) + printk(KERN_WARNING "%s: host error %d on tx " + "channel %d (macstatus %08x), resetting\n", + dev->name, tx_code, tx_channel, macstatus); + } + + netif_tx_stop_all_queues(dev); + cpmac_hw_stop(dev); + if (schedule_work(&priv->reset_work)) + atomic_inc(&priv->reset_pending); + if (unlikely(netif_msg_hw(priv))) + cpmac_dump_regs(dev); + } + cpmac_write(priv->regs, CPMAC_MAC_INT_CLEAR, 0xff); } static irqreturn_t cpmac_irq(int irq, void *dev_id) @@ -674,25 +806,16 @@ static irqreturn_t cpmac_irq(int irq, void *dev_id) if (status & MAC_INT_RX) { queue = (status >> 8) & 7; - if (netif_rx_schedule_prep(dev, &priv->napi)) { + if (napi_schedule_prep(&priv->napi)) { cpmac_write(priv->regs, CPMAC_RX_INT_CLEAR, 1 << queue); - __netif_rx_schedule(dev, &priv->napi); + __napi_schedule(&priv->napi); } } cpmac_write(priv->regs, CPMAC_MAC_EOI_VECTOR, 0); - if (unlikely(status & (MAC_INT_HOST | MAC_INT_STATUS))) { - if (netif_msg_drv(priv) && net_ratelimit()) - printk(KERN_ERR "%s: hw error, resetting...\n", - dev->name); - netif_stop_queue(dev); - napi_disable(&priv->napi); - cpmac_hw_stop(dev); - schedule_work(&priv->reset_work); - if (unlikely(netif_msg_hw(priv))) - cpmac_dump_regs(dev); - } + if (unlikely(status & (MAC_INT_HOST | MAC_INT_STATUS))) + cpmac_check_status(dev); return IRQ_HANDLED; } @@ -700,31 +823,20 @@ static irqreturn_t cpmac_irq(int irq, void *dev_id) static void cpmac_tx_timeout(struct net_device *dev) { struct cpmac_priv *priv = netdev_priv(dev); - int i; spin_lock(&priv->lock); dev->stats.tx_errors++; spin_unlock(&priv->lock); if (netif_msg_tx_err(priv) && net_ratelimit()) printk(KERN_WARNING "%s: transmit timeout\n", dev->name); - /* - * FIXME: waking up random queue is not the best thing to - * do... on the other hand why we got here at all? - */ -#ifdef CONFIG_NETDEVICES_MULTIQUEUE - for (i = 0; i < CPMAC_QUEUES; i++) - if (priv->desc_ring[i].skb) { - priv->desc_ring[i].dataflags = 0; - dev_kfree_skb_any(priv->desc_ring[i].skb); - netif_wake_subqueue(dev, i); - break; - } -#else - priv->desc_ring[0].dataflags = 0; - if (priv->desc_ring[0].skb) - dev_kfree_skb_any(priv->desc_ring[0].skb); - netif_wake_queue(dev); -#endif + + atomic_inc(&priv->reset_pending); + barrier(); + cpmac_clear_tx(dev); + barrier(); + atomic_dec(&priv->reset_pending); + + netif_tx_wake_all_queues(priv->dev); } static int cpmac_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) @@ -815,7 +927,7 @@ static void cpmac_adjust_link(struct net_device *dev) spin_lock(&priv->lock); if (priv->phy->link) { - netif_start_queue(dev); + netif_tx_start_all_queues(dev); if (priv->phy->duplex != priv->oldduplex) { new_state = 1; priv->oldduplex = priv->phy->duplex; @@ -829,10 +941,8 @@ static void cpmac_adjust_link(struct net_device *dev) if (!priv->oldlink) { new_state = 1; priv->oldlink = 1; - netif_schedule(dev); } } else if (priv->oldlink) { - netif_stop_queue(dev); new_state = 1; priv->oldlink = 0; priv->oldspeed = 0; @@ -886,12 +996,11 @@ static int cpmac_open(struct net_device *dev) priv->rx_head = &priv->desc_ring[CPMAC_QUEUES]; for (i = 0, desc = priv->rx_head; i < priv->ring_size; i++, desc++) { - skb = netdev_alloc_skb(dev, CPMAC_SKB_SIZE); + skb = netdev_alloc_skb_ip_align(dev, CPMAC_SKB_SIZE); if (unlikely(!skb)) { res = -ENOMEM; goto fail_desc; } - skb_reserve(skb, 2); desc->skb = skb; desc->data_mapping = dma_map_single(&dev->dev, skb->data, CPMAC_SKB_SIZE, @@ -900,9 +1009,12 @@ static int cpmac_open(struct net_device *dev) desc->buflen = CPMAC_SKB_SIZE; desc->dataflags = CPMAC_OWN; desc->next = &priv->rx_head[(i + 1) % priv->ring_size]; + desc->next->prev = desc; desc->hw_next = (u32)desc->next->mapping; } + priv->rx_head->prev->hw_next = (u32)0; + if ((res = request_irq(dev->irq, cpmac_irq, IRQF_SHARED, dev->name, dev))) { if (netif_msg_drv(priv)) @@ -911,6 +1023,7 @@ static int cpmac_open(struct net_device *dev) goto fail_irq; } + atomic_set(&priv->reset_pending, 0); INIT_WORK(&priv->reset_work, cpmac_hw_error); cpmac_hw_start(dev); @@ -948,7 +1061,7 @@ static int cpmac_stop(struct net_device *dev) struct cpmac_priv *priv = netdev_priv(dev); struct resource *mem; - netif_stop_queue(dev); + netif_tx_stop_all_queues(dev); cancel_work_sync(&priv->reset_work); napi_disable(&priv->napi); @@ -982,47 +1095,50 @@ static int cpmac_stop(struct net_device *dev) return 0; } +static const struct net_device_ops cpmac_netdev_ops = { + .ndo_open = cpmac_open, + .ndo_stop = cpmac_stop, + .ndo_start_xmit = cpmac_start_xmit, + .ndo_tx_timeout = cpmac_tx_timeout, + .ndo_set_multicast_list = cpmac_set_multicast_list, + .ndo_do_ioctl = cpmac_ioctl, + .ndo_set_config = cpmac_config, + .ndo_change_mtu = eth_change_mtu, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, +}; + static int external_switch; static int __devinit cpmac_probe(struct platform_device *pdev) { - int rc, phy_id, i; - char *mdio_bus_id = "0"; + int rc, phy_id; + char mdio_bus_id[MII_BUS_ID_SIZE]; struct resource *mem; struct cpmac_priv *priv; struct net_device *dev; struct plat_cpmac_data *pdata; - DECLARE_MAC_BUF(mac); pdata = pdev->dev.platform_data; - for (phy_id = 0; phy_id < PHY_MAX_ADDR; phy_id++) { - if (!(pdata->phy_mask & (1 << phy_id))) - continue; - if (!cpmac_mii.phy_map[phy_id]) - continue; - break; + if (external_switch || dumb_switch) { + strncpy(mdio_bus_id, "0", MII_BUS_ID_SIZE); /* fixed phys bus */ + phy_id = pdev->id; + } else { + for (phy_id = 0; phy_id < PHY_MAX_ADDR; phy_id++) { + if (!(pdata->phy_mask & (1 << phy_id))) + continue; + if (!cpmac_mii->phy_map[phy_id]) + continue; + strncpy(mdio_bus_id, cpmac_mii->id, MII_BUS_ID_SIZE); + break; + } } if (phy_id == PHY_MAX_ADDR) { - if (external_switch || dumb_switch) { - struct fixed_phy_status status = {}; - - /* - * FIXME: this should be in the platform code! - * Since there is not platform code at all (that is, - * no mainline users of that driver), place it here - * for now. - */ - phy_id = 0; - status.link = 1; - status.duplex = 1; - status.speed = 100; - fixed_phy_add(PHY_POLL, phy_id, &status); - } else { - printk(KERN_ERR "cpmac: no PHY present\n"); - return -ENODEV; - } + dev_err(&pdev->dev, "no PHY present, falling back to switch on MDIO bus 0\n"); + strncpy(mdio_bus_id, "0", MII_BUS_ID_SIZE); /* fixed phys bus */ + phy_id = pdev->id; } dev = alloc_etherdev_mq(sizeof(*priv), CPMAC_QUEUES); @@ -1044,15 +1160,8 @@ static int __devinit cpmac_probe(struct platform_device *pdev) dev->irq = platform_get_irq_byname(pdev, "irq"); - dev->open = cpmac_open; - dev->stop = cpmac_stop; - dev->set_config = cpmac_config; - dev->hard_start_xmit = cpmac_start_xmit; - dev->do_ioctl = cpmac_ioctl; - dev->set_multicast_list = cpmac_set_multicast_list; - dev->tx_timeout = cpmac_tx_timeout; - dev->ethtool_ops = &cpmac_ethtool_ops; - dev->features |= NETIF_F_MULTI_QUEUE; + dev->netdev_ops = &cpmac_netdev_ops; + dev->ethtool_ops = &cpmac_ethtool_ops; netif_napi_add(dev, &priv->napi, cpmac_poll, 64); @@ -1061,12 +1170,13 @@ static int __devinit cpmac_probe(struct platform_device *pdev) priv->dev = dev; priv->ring_size = 64; priv->msg_enable = netif_msg_init(debug_level, 0xff); - memcpy(dev->dev_addr, pdata->dev_addr, sizeof(dev->dev_addr)); + memcpy(dev->dev_addr, pdata->dev_addr, sizeof(pdata->dev_addr)); - snprintf(priv->phy_name, BUS_ID_SIZE, PHY_ID_FMT, mdio_bus_id, phy_id); + snprintf(priv->phy_name, MII_BUS_ID_SIZE, PHY_ID_FMT, mdio_bus_id, phy_id); priv->phy = phy_connect(dev, priv->phy_name, &cpmac_adjust_link, 0, - PHY_INTERFACE_MODE_MII); + PHY_INTERFACE_MODE_MII); + if (IS_ERR(priv->phy)) { if (netif_msg_drv(priv)) printk(KERN_ERR "%s: Could not attach to PHY\n", @@ -1083,8 +1193,8 @@ static int __devinit cpmac_probe(struct platform_device *pdev) if (netif_msg_probe(priv)) { printk(KERN_INFO "cpmac: device %s (regs: %p, irq: %d, phy: %s, " - "mac: %s)\n", dev->name, (void *)mem->start, dev->irq, - priv->phy_name, print_mac(mac, dev->dev_addr)); + "mac: %pM)\n", dev->name, (void *)mem->start, dev->irq, + priv->phy_name, dev->dev_addr); } return 0; @@ -1103,6 +1213,7 @@ static int __devexit cpmac_remove(struct platform_device *pdev) static struct platform_driver cpmac_driver = { .driver.name = "cpmac", + .driver.owner = THIS_MODULE, .probe = cpmac_probe, .remove = __devexit_p(cpmac_remove), }; @@ -1112,11 +1223,22 @@ int __devinit cpmac_init(void) u32 mask; int i, res; - cpmac_mii.priv = ioremap(AR7_REGS_MDIO, 256); + cpmac_mii = mdiobus_alloc(); + if (cpmac_mii == NULL) + return -ENOMEM; + + cpmac_mii->name = "cpmac-mii"; + cpmac_mii->read = cpmac_mdio_read; + cpmac_mii->write = cpmac_mdio_write; + cpmac_mii->reset = cpmac_mdio_reset; + cpmac_mii->irq = mii_irqs; - if (!cpmac_mii.priv) { + cpmac_mii->priv = ioremap(AR7_REGS_MDIO, 256); + + if (!cpmac_mii->priv) { printk(KERN_ERR "Can't ioremap mdio registers\n"); - return -ENXIO; + res = -ENXIO; + goto fail_alloc; } #warning FIXME: unhardcode gpio&reset bits @@ -1126,13 +1248,13 @@ int __devinit cpmac_init(void) ar7_device_reset(AR7_RESET_BIT_CPMAC_HI); ar7_device_reset(AR7_RESET_BIT_EPHY); - cpmac_mii.reset(&cpmac_mii); + cpmac_mii->reset(cpmac_mii); - for (i = 0; i < 300000; i++) - if ((mask = cpmac_read(cpmac_mii.priv, CPMAC_MDIO_ALIVE))) + for (i = 0; i < 300; i++) + if ((mask = cpmac_read(cpmac_mii->priv, CPMAC_MDIO_ALIVE))) break; else - cpu_relax(); + msleep(10); mask &= 0x7fffffff; if (mask & (mask - 1)) { @@ -1140,10 +1262,10 @@ int __devinit cpmac_init(void) mask = 0; } - cpmac_mii.phy_mask = ~(mask | 0x80000000); - snprintf(cpmac_mii.id, MII_BUS_ID_SIZE, "0"); + cpmac_mii->phy_mask = ~(mask | 0x80000000); + snprintf(cpmac_mii->id, MII_BUS_ID_SIZE, "1"); - res = mdiobus_register(&cpmac_mii); + res = mdiobus_register(cpmac_mii); if (res) goto fail_mii; @@ -1154,10 +1276,13 @@ int __devinit cpmac_init(void) return 0; fail_cpmac: - mdiobus_unregister(&cpmac_mii); + mdiobus_unregister(cpmac_mii); fail_mii: - iounmap(cpmac_mii.priv); + iounmap(cpmac_mii->priv); + +fail_alloc: + mdiobus_free(cpmac_mii); return res; } @@ -1165,8 +1290,9 @@ fail_mii: void __devexit cpmac_exit(void) { platform_driver_unregister(&cpmac_driver); - mdiobus_unregister(&cpmac_mii); - iounmap(cpmac_mii.priv); + mdiobus_unregister(cpmac_mii); + iounmap(cpmac_mii->priv); + mdiobus_free(cpmac_mii); } module_init(cpmac_init);