spidernet: autoneg support for Celleb
[powerpc.git] / drivers / net / spider_net.c
index 8ea2fc1..8aa3ebe 100644 (file)
@@ -165,6 +165,41 @@ spider_net_read_phy(struct net_device *netdev, int mii_id, int reg)
        return readvalue;
 }
 
+/**
+ * spider_net_setup_aneg - initial auto-negotiation setup
+ * @card: device structure
+ **/
+static void
+spider_net_setup_aneg(struct spider_net_card *card)
+{
+       struct mii_phy *phy = &card->phy;
+       u32 advertise = 0;
+       u16 bmcr, bmsr, stat1000, estat;
+
+       bmcr     = spider_net_read_phy(card->netdev, phy->mii_id, MII_BMCR);
+       bmsr     = spider_net_read_phy(card->netdev, phy->mii_id, MII_BMSR);
+       stat1000 = spider_net_read_phy(card->netdev, phy->mii_id, MII_STAT1000);
+       estat    = spider_net_read_phy(card->netdev, phy->mii_id, MII_ESTATUS);
+
+       if (bmsr & BMSR_10HALF)
+               advertise |= ADVERTISED_10baseT_Half;
+       if (bmsr & BMSR_10FULL)
+               advertise |= ADVERTISED_10baseT_Full;
+       if (bmsr & BMSR_100HALF)
+               advertise |= ADVERTISED_100baseT_Half;
+       if (bmsr & BMSR_100FULL)
+               advertise |= ADVERTISED_100baseT_Full;
+
+       if ((bmsr & BMSR_ESTATEN) && (estat & ESTATUS_1000_TFULL))
+               advertise |= SUPPORTED_1000baseT_Full;
+       if ((bmsr & BMSR_ESTATEN) && (estat & ESTATUS_1000_THALF))
+               advertise |= SUPPORTED_1000baseT_Half;
+
+       mii_phy_probe(phy, phy->mii_id);
+       phy->def->ops->setup_aneg(phy, advertise);
+
+}
+
 /**
  * spider_net_rx_irq_off - switch off rx irq on this spider card
  * @card: device structure
@@ -280,72 +315,67 @@ spider_net_free_chain(struct spider_net_card *card,
 {
        struct spider_net_descr *descr;
 
-       for (descr = chain->tail; !descr->bus_addr; descr = descr->next) {
-               pci_unmap_single(card->pdev, descr->bus_addr,
-                                SPIDER_NET_DESCR_SIZE, PCI_DMA_BIDIRECTIONAL);
+       descr = chain->ring;
+       do {
                descr->bus_addr = 0;
-       }
+               descr->next_descr_addr = 0;
+               descr = descr->next;
+       } while (descr != chain->ring);
+
+       dma_free_coherent(&card->pdev->dev, chain->num_desc,
+           chain->ring, chain->dma_addr);
 }
 
 /**
- * spider_net_init_chain - links descriptor chain
+ * spider_net_init_chain - alloc and link descriptor chain
  * @card: card structure
  * @chain: address of chain
- * @start_descr: address of descriptor array
- * @no: number of descriptors
  *
- * we manage a circular list that mirrors the hardware structure,
+ * We manage a circular list that mirrors the hardware structure,
  * except that the hardware uses bus addresses.
  *
- * returns 0 on success, <0 on failure
+ * Returns 0 on success, <0 on failure
  */
 static int
 spider_net_init_chain(struct spider_net_card *card,
-                      struct spider_net_descr_chain *chain,
-                      struct spider_net_descr *start_descr,
-                      int no)
+                      struct spider_net_descr_chain *chain)
 {
        int i;
        struct spider_net_descr *descr;
        dma_addr_t buf;
+       size_t alloc_size;
 
-       descr = start_descr;
-       memset(descr, 0, sizeof(*descr) * no);
+       alloc_size = chain->num_desc * sizeof (struct spider_net_descr);
 
-       /* set up the hardware pointers in each descriptor */
-       for (i=0; i<no; i++, descr++) {
-               descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
+       chain->ring = dma_alloc_coherent(&card->pdev->dev, alloc_size,
+               &chain->dma_addr, GFP_KERNEL);
 
-               buf = pci_map_single(card->pdev, descr,
-                                    SPIDER_NET_DESCR_SIZE,
-                                    PCI_DMA_BIDIRECTIONAL);
+       if (!chain->ring)
+               return -ENOMEM;
 
-               if (pci_dma_mapping_error(buf))
-                       goto iommu_error;
+       descr = chain->ring;
+       memset(descr, 0, alloc_size);
+
+       /* Set up the hardware pointers in each descriptor */
+       buf = chain->dma_addr;
+       for (i=0; i < chain->num_desc; i++, descr++) {
+               descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
 
                descr->bus_addr = buf;
+               descr->next_descr_addr = 0;
                descr->next = descr + 1;
                descr->prev = descr - 1;
 
+               buf += sizeof(struct spider_net_descr);
        }
        /* do actual circular list */
-       (descr-1)->next = start_descr;
-       start_descr->prev = descr-1;
+       (descr-1)->next = chain->ring;
+       chain->ring->prev = descr-1;
 
        spin_lock_init(&chain->lock);
-       chain->head = start_descr;
-       chain->tail = start_descr;
-
+       chain->head = chain->ring;
+       chain->tail = chain->ring;
        return 0;
-
-iommu_error:
-       descr = start_descr;
-       for (i=0; i < no; i++, descr++)
-               if (descr->bus_addr)
-                       pci_unmap_single(card->pdev, descr->bus_addr,
-                                        SPIDER_NET_DESCR_SIZE,
-                                        PCI_DMA_BIDIRECTIONAL);
-       return -ENOMEM;
 }
 
 /**
@@ -372,21 +402,20 @@ spider_net_free_rx_chain_contents(struct spider_net_card *card)
 }
 
 /**
- * spider_net_prepare_rx_descr - reinitializes a rx descriptor
+ * spider_net_prepare_rx_descr - Reinitialize RX descriptor
  * @card: card structure
  * @descr: descriptor to re-init
  *
- * return 0 on succes, <0 on failure
+ * Return 0 on succes, <0 on failure.
  *
- * allocates a new rx skb, iommu-maps it and attaches it to the descriptor.
- * Activate the descriptor state-wise
+ * Allocates a new rx skb, iommu-maps it and attaches it to the
+ * descriptor. Mark the descriptor as activated, ready-to-use.
  */
 static int
 spider_net_prepare_rx_descr(struct spider_net_card *card,
                            struct spider_net_descr *descr)
 {
        dma_addr_t buf;
-       int error = 0;
        int offset;
        int bufsize;
 
@@ -414,7 +443,7 @@ spider_net_prepare_rx_descr(struct spider_net_card *card,
                (SPIDER_NET_RXBUF_ALIGN - 1);
        if (offset)
                skb_reserve(descr->skb, SPIDER_NET_RXBUF_ALIGN - offset);
-       /* io-mmu-map the skb */
+       /* iommu-map the skb */
        buf = pci_map_single(card->pdev, descr->skb->data,
                        SPIDER_NET_MAX_FRAME, PCI_DMA_FROMDEVICE);
        descr->buf_addr = buf;
@@ -425,11 +454,16 @@ spider_net_prepare_rx_descr(struct spider_net_card *card,
                card->spider_stats.rx_iommu_map_error++;
                descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
        } else {
+               descr->next_descr_addr = 0;
+               wmb();
                descr->dmac_cmd_status = SPIDER_NET_DESCR_CARDOWNED |
                                         SPIDER_NET_DMAC_NOINTR_COMPLETE;
+
+               wmb();
+               descr->prev->next_descr_addr = descr->bus_addr;
        }
 
-       return error;
+       return 0;
 }
 
 /**
@@ -493,10 +527,10 @@ spider_net_refill_rx_chain(struct spider_net_card *card)
 }
 
 /**
- * spider_net_alloc_rx_skbs - allocates rx skbs in rx descriptor chains
+ * spider_net_alloc_rx_skbs - Allocates rx skbs in rx descriptor chains
  * @card: card structure
  *
- * returns 0 on success, <0 on failure
+ * Returns 0 on success, <0 on failure.
  */
 static int
 spider_net_alloc_rx_skbs(struct spider_net_card *card)
@@ -507,16 +541,16 @@ spider_net_alloc_rx_skbs(struct spider_net_card *card)
        result = -ENOMEM;
 
        chain = &card->rx_chain;
-       /* put at least one buffer into the chain. if this fails,
-        * we've got a problem. if not, spider_net_refill_rx_chain
-        * will do the rest at the end of this function */
+       /* Put at least one buffer into the chain. if this fails,
+        * we've got a problem. If not, spider_net_refill_rx_chain
+        * will do the rest at the end of this function. */
        if (spider_net_prepare_rx_descr(card, chain->head))
                goto error;
        else
                chain->head = chain->head->next;
 
-       /* this will allocate the rest of the rx buffers; if not, it's
-        * business as usual later on */
+       /* This will allocate the rest of the rx buffers;
+        * if not, it's business as usual later on. */
        spider_net_refill_rx_chain(card);
        spider_net_enable_rxdmac(card);
        return 0;
@@ -707,7 +741,7 @@ spider_net_set_low_watermark(struct spider_net_card *card)
        }
 
        /* If TX queue is short, don't even bother with interrupts */
-       if (cnt < card->num_tx_desc/4)
+       if (cnt < card->tx_chain.num_desc/4)
                return cnt;
 
        /* Set low-watermark 3/4th's of the way into the queue. */
@@ -915,16 +949,13 @@ spider_net_do_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
  * spider_net_pass_skb_up - takes an skb from a descriptor and passes it on
  * @descr: descriptor to process
  * @card: card structure
- * @napi: whether caller is in NAPI context
- *
- * returns 1 on success, 0 if no packet was passed to the stack
  *
- * iommu-unmaps the skb, fills out skb structure and passes the data to the
- * stack. The descriptor state is not changed.
+ * Fills out skb structure and passes the data to the stack.
+ * The descriptor state is not changed.
  */
-static int
+static void
 spider_net_pass_skb_up(struct spider_net_descr *descr,
-                      struct spider_net_card *card, int napi)
+                      struct spider_net_card *card)
 {
        struct sk_buff *skb;
        struct net_device *netdev;
@@ -932,23 +963,8 @@ spider_net_pass_skb_up(struct spider_net_descr *descr,
 
        data_status = descr->data_status;
        data_error = descr->data_error;
-
        netdev = card->netdev;
 
-       /* unmap descriptor */
-       pci_unmap_single(card->pdev, descr->buf_addr, SPIDER_NET_MAX_FRAME,
-                       PCI_DMA_FROMDEVICE);
-
-       /* the cases we'll throw away the packet immediately */
-       if (data_error & SPIDER_NET_DESTROY_RX_FLAGS) {
-               if (netif_msg_rx_err(card))
-                       pr_err("error in received descriptor found, "
-                              "data_status=x%08x, data_error=x%08x\n",
-                              data_status, data_error);
-               card->spider_stats.rx_desc_error++;
-               return 0;
-       }
-
        skb = descr->skb;
        skb->dev = netdev;
        skb_put(skb, descr->valid_size);
@@ -977,57 +993,72 @@ spider_net_pass_skb_up(struct spider_net_descr *descr,
        }
 
        /* pass skb up to stack */
-       if (napi)
-               netif_receive_skb(skb);
-       else
-               netif_rx_ni(skb);
+       netif_receive_skb(skb);
 
        /* update netdevice statistics */
        card->netdev_stats.rx_packets++;
        card->netdev_stats.rx_bytes += skb->len;
+}
 
-       return 1;
+#ifdef DEBUG
+static void show_rx_chain(struct spider_net_card *card)
+{
+       struct spider_net_descr_chain *chain = &card->rx_chain;
+       struct spider_net_descr *start= chain->tail;
+       struct spider_net_descr *descr= start;
+       int status;
+
+       int cnt = 0;
+       int cstat = spider_net_get_descr_status(descr);
+       printk(KERN_INFO "RX chain tail at descr=%ld\n",
+            (start - card->descr) - card->tx_chain.num_desc);
+       status = cstat;
+       do
+       {
+               status = spider_net_get_descr_status(descr);
+               if (cstat != status) {
+                       printk(KERN_INFO "Have %d descrs with stat=x%08x\n", cnt, cstat);
+                       cstat = status;
+                       cnt = 0;
+               }
+               cnt ++;
+               descr = descr->next;
+       } while (descr != start);
+       printk(KERN_INFO "Last %d descrs with stat=x%08x\n", cnt, cstat);
 }
+#endif
 
 /**
  * spider_net_decode_one_descr - processes an rx descriptor
  * @card: card structure
- * @napi: whether caller is in NAPI context
  *
- * returns 1 if a packet has been sent to the stack, otherwise 0
+ * Returns 1 if a packet has been sent to the stack, otherwise 0
  *
- * processes an rx descriptor by iommu-unmapping the data buffer and passing
+ * Processes an rx descriptor by iommu-unmapping the data buffer and passing
  * the packet up to the stack. This function is called in softirq
  * context, e.g. either bottom half from interrupt or NAPI polling context
  */
 static int
-spider_net_decode_one_descr(struct spider_net_card *card, int napi)
+spider_net_decode_one_descr(struct spider_net_card *card)
 {
        struct spider_net_descr_chain *chain = &card->rx_chain;
        struct spider_net_descr *descr = chain->tail;
        int status;
-       int result;
 
        status = spider_net_get_descr_status(descr);
 
-       if (status == SPIDER_NET_DESCR_CARDOWNED) {
-               /* nothing in the descriptor yet */
-               result=0;
-               goto out;
-       }
-
-       if (status == SPIDER_NET_DESCR_NOT_IN_USE) {
-               /* not initialized yet, the ring must be empty */
-               spider_net_refill_rx_chain(card);
-               spider_net_enable_rxdmac(card);
-               result=0;
-               goto out;
-       }
+       /* Nothing in the descriptor, or ring must be empty */
+       if ((status == SPIDER_NET_DESCR_CARDOWNED) ||
+           (status == SPIDER_NET_DESCR_NOT_IN_USE))
+               return 0;
 
        /* descriptor definitively used -- move on tail */
        chain->tail = descr->next;
 
-       result = 0;
+       /* unmap descriptor */
+       pci_unmap_single(card->pdev, descr->buf_addr,
+                       SPIDER_NET_MAX_FRAME, PCI_DMA_FROMDEVICE);
+
        if ( (status == SPIDER_NET_DESCR_RESPONSE_ERROR) ||
             (status == SPIDER_NET_DESCR_PROTECTION_ERROR) ||
             (status == SPIDER_NET_DESCR_FORCE_END) ) {
@@ -1035,31 +1066,55 @@ spider_net_decode_one_descr(struct spider_net_card *card, int napi)
                        pr_err("%s: dropping RX descriptor with state %d\n",
                               card->netdev->name, status);
                card->netdev_stats.rx_dropped++;
-               pci_unmap_single(card->pdev, descr->buf_addr,
-                               SPIDER_NET_MAX_FRAME, PCI_DMA_FROMDEVICE);
-               dev_kfree_skb_irq(descr->skb);
-               goto refill;
+               goto bad_desc;
        }
 
        if ( (status != SPIDER_NET_DESCR_COMPLETE) &&
             (status != SPIDER_NET_DESCR_FRAME_END) ) {
-               if (netif_msg_rx_err(card)) {
-                       pr_err("%s: RX descriptor with state %d\n",
+               if (netif_msg_rx_err(card))
+                       pr_err("%s: RX descriptor with unkown state %d\n",
                               card->netdev->name, status);
-                       card->spider_stats.rx_desc_unk_state++;
-               }
-               goto refill;
+               card->spider_stats.rx_desc_unk_state++;
+               goto bad_desc;
+       }
+
+       /* The cases we'll throw away the packet immediately */
+       if (descr->data_error & SPIDER_NET_DESTROY_RX_FLAGS) {
+               if (netif_msg_rx_err(card))
+                       pr_err("%s: error in received descriptor found, "
+                              "data_status=x%08x, data_error=x%08x\n",
+                              card->netdev->name,
+                              descr->data_status, descr->data_error);
+               goto bad_desc;
+       }
+
+       if (descr->dmac_cmd_status & 0xfefe) {
+               pr_err("%s: bad status, cmd_status=x%08x\n",
+                              card->netdev->name,
+                              descr->dmac_cmd_status);
+               pr_err("buf_addr=x%08x\n", descr->buf_addr);
+               pr_err("buf_size=x%08x\n", descr->buf_size);
+               pr_err("next_descr_addr=x%08x\n", descr->next_descr_addr);
+               pr_err("result_size=x%08x\n", descr->result_size);
+               pr_err("valid_size=x%08x\n", descr->valid_size);
+               pr_err("data_status=x%08x\n", descr->data_status);
+               pr_err("data_error=x%08x\n", descr->data_error);
+               pr_err("bus_addr=x%08x\n", descr->bus_addr);
+               pr_err("which=%ld\n", descr - card->rx_chain.ring);
+
+               card->spider_stats.rx_desc_error++;
+               goto bad_desc;
        }
 
-       /* ok, we've got a packet in descr */
-       result = spider_net_pass_skb_up(descr, card, napi);
-refill:
+       /* Ok, we've got a packet in descr */
+       spider_net_pass_skb_up(descr, card);
        descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
-       /* change the descriptor state: */
-       if (!napi)
-               spider_net_refill_rx_chain(card);
-out:
-       return result;
+       return 1;
+
+bad_desc:
+       dev_kfree_skb_irq(descr->skb);
+       descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
+       return 0;
 }
 
 /**
@@ -1085,7 +1140,7 @@ spider_net_poll(struct net_device *netdev, int *budget)
        packets_to_do = min(*budget, netdev->quota);
 
        while (packets_to_do) {
-               if (spider_net_decode_one_descr(card, 1)) {
+               if (spider_net_decode_one_descr(card)) {
                        packets_done++;
                        packets_to_do--;
                } else {
@@ -1098,6 +1153,7 @@ spider_net_poll(struct net_device *netdev, int *budget)
        netdev->quota -= packets_done;
        *budget -= packets_done;
        spider_net_refill_rx_chain(card);
+       spider_net_enable_rxdmac(card);
 
        /* if all packets are in the stack, enable interrupts and return 0 */
        /* if not, return 1 */
@@ -1227,21 +1283,30 @@ spider_net_set_mac(struct net_device *netdev, void *p)
 }
 
 /**
- * spider_net_handle_rxram_full - cleans up RX ring upon RX RAM full interrupt
- * @card: card structure
+ * spider_net_link_reset
+ * @netdev: net device structure
+ *
+ * This is called when the PHY_LINK signal is asserted. For the blade this is
+ * not connected so we should never get here.
  *
- * spider_net_handle_rxram_full empties the RX ring so that spider can put
- * more packets in it and empty its RX RAM. This is called in bottom half
- * context
  */
 static void
-spider_net_handle_rxram_full(struct spider_net_card *card)
+spider_net_link_reset(struct net_device *netdev)
 {
-       while (spider_net_decode_one_descr(card, 0))
-               ;
-       spider_net_enable_rxchtails(card);
-       spider_net_enable_rxdmac(card);
-       netif_rx_schedule(card->netdev);
+
+       struct spider_net_card *card = netdev_priv(netdev);
+
+       del_timer_sync(&card->aneg_timer);
+
+       /* clear interrupt, block further interrupts */
+       spider_net_write_reg(card, SPIDER_NET_GMACST,
+                            spider_net_read_reg(card, SPIDER_NET_GMACST));
+       spider_net_write_reg(card, SPIDER_NET_GMACINTEN, 0);
+
+       /* reset phy and setup aneg */
+       spider_net_setup_aneg(card);
+       mod_timer(&card->aneg_timer, jiffies + SPIDER_NET_ANEG_TIMER);
+
 }
 
 /**
@@ -1366,10 +1431,10 @@ spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg)
        case SPIDER_NET_GRFAFLLINT: /* fallthrough */
        case SPIDER_NET_GRMFLLINT:
                if (netif_msg_intr(card) && net_ratelimit())
-                       pr_debug("Spider RX RAM full, incoming packets "
+                       pr_err("Spider RX RAM full, incoming packets "
                               "might be discarded!\n");
                spider_net_rx_irq_off(card);
-               tasklet_schedule(&card->rxram_full_tl);
+               netif_rx_schedule(card->netdev);
                show_error = 0;
                break;
 
@@ -1384,7 +1449,7 @@ spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg)
        case SPIDER_NET_GDCDCEINT: /* fallthrough */
        case SPIDER_NET_GDBDCEINT: /* fallthrough */
        case SPIDER_NET_GDADCEINT:
-               if (netif_msg_intr(card))
+               if (netif_msg_intr(card) && net_ratelimit())
                        pr_err("got descriptor chain end interrupt, "
                               "restarting DMAC %c.\n",
                               'D'-(i-SPIDER_NET_GDDDCEINT)/3);
@@ -1455,7 +1520,7 @@ spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg)
                        break;
        }
 
-       if ((show_error) && (netif_msg_intr(card)))
+       if ((show_error) && (netif_msg_intr(card)) && net_ratelimit())
                pr_err("Got error interrupt on %s, GHIINT0STS = 0x%08x, "
                       "GHIINT1STS = 0x%08x, GHIINT2STS = 0x%08x\n",
                       card->netdev->name,
@@ -1497,6 +1562,9 @@ spider_net_interrupt(int irq, void *ptr)
        if (status_reg & SPIDER_NET_TXINT)
                netif_rx_schedule(netdev);
 
+       if (status_reg & SPIDER_NET_LINKINT)
+               spider_net_link_reset(netdev);
+
        if (status_reg & SPIDER_NET_ERRINT )
                spider_net_handle_error_irq(card, status_reg);
 
@@ -1621,8 +1689,6 @@ spider_net_enable_card(struct spider_net_card *card)
 
        spider_net_write_reg(card, SPIDER_NET_GMACLENLMT,
                             SPIDER_NET_LENLMT_VALUE);
-       spider_net_write_reg(card, SPIDER_NET_GMACMODE,
-                            SPIDER_NET_MACMODE_VALUE);
        spider_net_write_reg(card, SPIDER_NET_GMACOPEMD,
                             SPIDER_NET_OPMODE_VALUE);
 
@@ -1651,27 +1717,23 @@ int
 spider_net_open(struct net_device *netdev)
 {
        struct spider_net_card *card = netdev_priv(netdev);
-       struct spider_net_descr *descr;
-       int i, result;
+       int result;
 
-       result = -ENOMEM;
-       if (spider_net_init_chain(card, &card->tx_chain, card->descr,
-                                 card->num_tx_desc))
-               goto alloc_tx_failed;
+       /* start probing with copper */
+       spider_net_setup_aneg(card);
+       if (card->phy.def->phy_id)
+               mod_timer(&card->aneg_timer, jiffies + SPIDER_NET_ANEG_TIMER);
 
+       result = spider_net_init_chain(card, &card->tx_chain);
+       if (result)
+               goto alloc_tx_failed;
        card->low_watermark = NULL;
 
-       /* rx_chain is after tx_chain, so offset is descr + tx_count */
-       if (spider_net_init_chain(card, &card->rx_chain,
-                                 card->descr + card->num_tx_desc,
-                                 card->num_rx_desc))
+       result = spider_net_init_chain(card, &card->rx_chain);
+       if (result)
                goto alloc_rx_failed;
 
-       descr = card->rx_chain.head;
-       for (i=0; i < card->num_rx_desc; i++, descr++)
-               descr->next_descr_addr = descr->next->bus_addr;
-
-       /* allocate rx skbs */
+       /* Allocate rx skbs */
        if (spider_net_alloc_rx_skbs(card))
                goto alloc_skbs_failed;
 
@@ -1699,17 +1761,88 @@ alloc_skbs_failed:
 alloc_rx_failed:
        spider_net_free_chain(card, &card->tx_chain);
 alloc_tx_failed:
+       del_timer_sync(&card->aneg_timer);
        return result;
 }
 
+/**
+ * spider_net_link_phy
+ * @data: used for pointer to card structure
+ *
+ */
+static void spider_net_link_phy(unsigned long data)
+{
+       struct spider_net_card *card = (struct spider_net_card *)data;
+       struct mii_phy *phy = &card->phy;
+
+       /* if link didn't come up after SPIDER_NET_ANEG_TIMEOUT tries, setup phy again */
+       if (card->aneg_count > SPIDER_NET_ANEG_TIMEOUT) {
+
+               pr_info("%s: link is down trying to bring it up\n", card->netdev->name);
+
+               switch (phy->medium) {
+               case GMII_COPPER:
+                       /* enable fiber with autonegotiation first */
+                       if (phy->def->ops->enable_fiber)
+                               phy->def->ops->enable_fiber(phy, 1);
+                       phy->medium = GMII_FIBER;
+                       break;
+
+               case GMII_FIBER:
+                       /* fiber didn't come up, try to disable fiber autoneg */
+                       if (phy->def->ops->enable_fiber)
+                               phy->def->ops->enable_fiber(phy, 0);
+                       phy->medium = GMII_UNKNOWN;
+                       break;
+
+               case GMII_UNKNOWN:
+                       /* copper, fiber with and without failed,
+                        * retry from beginning */
+                       spider_net_setup_aneg(card);
+                       phy->medium = GMII_COPPER;
+                       break;
+               }
+
+               card->aneg_count = 0;
+               mod_timer(&card->aneg_timer, jiffies + SPIDER_NET_ANEG_TIMER);
+               return;
+       }
+
+       /* link still not up, try again later */
+       if (!(phy->def->ops->poll_link(phy))) {
+               card->aneg_count++;
+               mod_timer(&card->aneg_timer, jiffies + SPIDER_NET_ANEG_TIMER);
+               return;
+       }
+
+       /* link came up, get abilities */
+       phy->def->ops->read_link(phy);
+
+       spider_net_write_reg(card, SPIDER_NET_GMACST,
+                            spider_net_read_reg(card, SPIDER_NET_GMACST));
+       spider_net_write_reg(card, SPIDER_NET_GMACINTEN, 0x4);
+
+       if (phy->speed == 1000)
+               spider_net_write_reg(card, SPIDER_NET_GMACMODE, 0x00000001);
+       else
+               spider_net_write_reg(card, SPIDER_NET_GMACMODE, 0);
+
+       card->aneg_count = 0;
+
+       pr_debug("Found %s with %i Mbps, %s-duplex %sautoneg.\n",
+               phy->def->name, phy->speed, phy->duplex==1 ? "Full" : "Half",
+               phy->autoneg==1 ? "" : "no ");
+
+       return;
+}
+
 /**
  * spider_net_setup_phy - setup PHY
  * @card: card structure
  *
  * returns 0 on success, <0 on failure
  *
- * spider_net_setup_phy is used as part of spider_net_probe. Sets
- * the PHY to 1000 Mbps
+ * spider_net_setup_phy is used as part of spider_net_probe.
  **/
 static int
 spider_net_setup_phy(struct spider_net_card *card)
@@ -1720,21 +1853,21 @@ spider_net_setup_phy(struct spider_net_card *card)
                             SPIDER_NET_DMASEL_VALUE);
        spider_net_write_reg(card, SPIDER_NET_GPCCTRL,
                             SPIDER_NET_PHY_CTRL_VALUE);
-       phy->mii_id = 1;
+
        phy->dev = card->netdev;
        phy->mdio_read = spider_net_read_phy;
        phy->mdio_write = spider_net_write_phy;
 
-       mii_phy_probe(phy, phy->mii_id);
-
-       if (phy->def->ops->setup_forced)
-               phy->def->ops->setup_forced(phy, SPEED_1000, DUPLEX_FULL);
-
-       phy->def->ops->enable_fiber(phy);
-
-       phy->def->ops->read_link(phy);
-       pr_info("Found %s with %i Mbps, %s-duplex.\n", phy->def->name,
-               phy->speed, phy->duplex==1 ? "Full" : "Half");
+       for (phy->mii_id = 1; phy->mii_id <= 31; phy->mii_id++) {
+               unsigned short id;
+               id = spider_net_read_phy(card->netdev, phy->mii_id, MII_BMSR);
+               if (id != 0x0000 && id != 0xffff) {
+                       if (!mii_phy_probe(phy, phy->mii_id)) {
+                               pr_info("Found %s.\n", phy->def->name);
+                               break;
+                       }
+               }
+       }
 
        return 0;
 }
@@ -1902,19 +2035,19 @@ spider_net_stop(struct net_device *netdev)
 {
        struct spider_net_card *card = netdev_priv(netdev);
 
-       tasklet_kill(&card->rxram_full_tl);
        netif_poll_disable(netdev);
        netif_carrier_off(netdev);
        netif_stop_queue(netdev);
        del_timer_sync(&card->tx_timer);
+       del_timer_sync(&card->aneg_timer);
 
        /* disable/mask all interrupts */
        spider_net_write_reg(card, SPIDER_NET_GHIINT0MSK, 0);
        spider_net_write_reg(card, SPIDER_NET_GHIINT1MSK, 0);
        spider_net_write_reg(card, SPIDER_NET_GHIINT2MSK, 0);
+       spider_net_write_reg(card, SPIDER_NET_GMACINTEN, 0);
 
-       /* free_irq(netdev->irq, netdev);*/
-       free_irq(to_pci_dev(netdev->class_dev.dev)->irq, netdev);
+       free_irq(netdev->irq, netdev);
 
        spider_net_write_reg(card, SPIDER_NET_GDTDMACCNTR,
                             SPIDER_NET_DMA_TX_FEND_VALUE);
@@ -1924,7 +2057,6 @@ spider_net_stop(struct net_device *netdev)
 
        /* release chains */
        spider_net_release_tx_chain(card, 1);
-
        spider_net_free_rx_chain_contents(card);
 
        spider_net_free_chain(card, &card->tx_chain);
@@ -2046,19 +2178,21 @@ spider_net_setup_netdev(struct spider_net_card *card)
 
        pci_set_drvdata(card->pdev, netdev);
 
-       card->rxram_full_tl.data = (unsigned long) card;
-       card->rxram_full_tl.func =
-               (void (*)(unsigned long)) spider_net_handle_rxram_full;
        init_timer(&card->tx_timer);
        card->tx_timer.function =
                (void (*)(unsigned long)) spider_net_cleanup_tx_ring;
        card->tx_timer.data = (unsigned long) card;
        netdev->irq = card->pdev->irq;
 
+       card->aneg_count = 0;
+       init_timer(&card->aneg_timer);
+       card->aneg_timer.function = spider_net_link_phy;
+       card->aneg_timer.data = (unsigned long) card;
+
        card->options.rx_csum = SPIDER_NET_RX_CSUM_DEFAULT;
 
-       card->num_tx_desc = tx_descriptors;
-       card->num_rx_desc = rx_descriptors;
+       card->tx_chain.num_desc = tx_descriptors;
+       card->rx_chain.num_desc = rx_descriptors;
 
        spider_net_setup_netdev_ops(netdev);
 
@@ -2107,12 +2241,8 @@ spider_net_alloc_card(void)
 {
        struct net_device *netdev;
        struct spider_net_card *card;
-       size_t alloc_size;
 
-       alloc_size = sizeof (*card) +
-               sizeof (struct spider_net_descr) * rx_descriptors +
-               sizeof (struct spider_net_descr) * tx_descriptors;
-       netdev = alloc_etherdev(alloc_size);
+       netdev = alloc_etherdev(sizeof(struct spider_net_card));
        if (!netdev)
                return NULL;