Merge branch 'origin'

[linux-2.6] / drivers / net / sky2.c

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 72c1630977d6542696b8d4d7e05d146f92629fa8..73260364cba3f9c590dbc05775868d7ce62283c8 100644 (file)
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -74,7 +74,7 @@
 #define TX_RING_SIZE           512
 #define TX_DEF_PENDING         (TX_RING_SIZE - 1)
 #define TX_MIN_PENDING         64
-#define MAX_SKB_TX_LE          (4 + 2*MAX_SKB_FRAGS)
+#define MAX_SKB_TX_LE          (4 + (sizeof(dma_addr_t)/sizeof(u32))*MAX_SKB_FRAGS)
 
 #define STATUS_RING_SIZE       2048    /* 2 ports * (TX + 2*RX) */
 #define STATUS_LE_BYTES                (STATUS_RING_SIZE*sizeof(struct sky2_status_le))
@@ -622,8 +622,8 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
 
        /* Configure Rx MAC FIFO */
        sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
-       sky2_write16(hw, SK_REG(port, RX_GMF_CTRL_T),
-                    GMF_RX_CTRL_DEF);
+       sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T),
+                    GMF_OPER_ON | GMF_RX_F_FL_ON);
 
        /* Flush Rx MAC FIFO on any flow control or error */
        sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR);
@@ -995,6 +995,10 @@ static int sky2_rx_start(struct sky2_port *sky2)
                sky2_rx_add(sky2, re->mapaddr);
        }
 
+       /* Truncate oversize frames */
+       sky2_write16(hw, SK_REG(sky2->port, RX_GMF_TR_THR), sky2->rx_bufsize - 8);
+       sky2_write32(hw, SK_REG(sky2->port, RX_GMF_CTRL_T), RX_TRUNC_ON);
+
        /* Tell chip about available buffers */
        sky2_write16(hw, Y2_QADDR(rxq, PREF_UNIT_PUT_IDX), sky2->rx_put);
        sky2->rx_last_put = sky2_read16(hw, Y2_QADDR(rxq, PREF_UNIT_PUT_IDX));
@@ -1145,6 +1149,7 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
        struct sky2_tx_le *le = NULL;
        struct tx_ring_info *re;
        unsigned i, len;
+       int avail;
        dma_addr_t mapping;
        u32 addr64;
        u16 mss;
@@ -1287,12 +1292,16 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
        re->idx = sky2->tx_prod;
        le->ctrl |= EOP;
 
+       avail = tx_avail(sky2);
+       if (mss != 0 || avail < TX_MIN_PENDING) {
+               le->ctrl |= FRC_STAT;
+               if (avail <= MAX_SKB_TX_LE)
+                       netif_stop_queue(dev);
+       }
+
        sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod,
                     &sky2->tx_last_put, TX_RING_SIZE);
 
-       if (tx_avail(sky2) <= MAX_SKB_TX_LE)
-               netif_stop_queue(dev);
-
 out_unlock:
        spin_unlock(&sky2->tx_lock);
 
@@ -1707,10 +1716,12 @@ static void sky2_tx_timeout(struct net_device *dev)
 
 
 #define roundup(x, y)   ((((x)+((y)-1))/(y))*(y))
-/* Want receive buffer size to be multiple of 64 bits, and incl room for vlan */
+/* Want receive buffer size to be multiple of 64 bits
+ * and incl room for vlan and truncation
+ */
 static inline unsigned sky2_buf_size(int mtu)
 {
-       return roundup(mtu + ETH_HLEN + 4, 8);
+       return roundup(mtu + ETH_HLEN + VLAN_HLEN, 8) + 8;
 }
 
 static int sky2_change_mtu(struct net_device *dev, int new_mtu)
@@ -1793,7 +1804,7 @@ static struct sk_buff *sky2_receive(struct sky2_port *sky2,
        if (!(status & GMR_FS_RX_OK))
                goto resubmit;
 
-       if ((status >> 16) != length || length > sky2->rx_bufsize)
+       if (length > sky2->netdev->mtu + ETH_HLEN)
                goto oversize;
 
        if (length < copybreak) {
@@ -3243,8 +3254,7 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
                }
        }
 
-       err = request_irq(pdev->irq, sky2_intr, SA_SHIRQ | SA_SAMPLE_RANDOM,
-                         DRV_NAME, hw);
+       err = request_irq(pdev->irq, sky2_intr, SA_SHIRQ, DRV_NAME, hw);
        if (err) {
                printk(KERN_ERR PFX "%s: cannot assign irq %d\n",
                       pci_name(pdev), pdev->irq);