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Diffstat (limited to 'drivers/net/gianfar.c')
-rw-r--r--drivers/net/gianfar.c47
1 files changed, 23 insertions, 24 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index f92690555dd..bd2de325bbd 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -134,7 +134,7 @@ static void gfar_configure_serdes(struct net_device *dev);
134extern int gfar_local_mdio_write(struct gfar_mii *regs, int mii_id, int regnum, u16 value); 134extern int gfar_local_mdio_write(struct gfar_mii *regs, int mii_id, int regnum, u16 value);
135extern int gfar_local_mdio_read(struct gfar_mii *regs, int mii_id, int regnum); 135extern int gfar_local_mdio_read(struct gfar_mii *regs, int mii_id, int regnum);
136#ifdef CONFIG_GFAR_NAPI 136#ifdef CONFIG_GFAR_NAPI
137static int gfar_poll(struct net_device *dev, int *budget); 137static int gfar_poll(struct napi_struct *napi, int budget);
138#endif 138#endif
139#ifdef CONFIG_NET_POLL_CONTROLLER 139#ifdef CONFIG_NET_POLL_CONTROLLER
140static void gfar_netpoll(struct net_device *dev); 140static void gfar_netpoll(struct net_device *dev);
@@ -188,6 +188,7 @@ static int gfar_probe(struct platform_device *pdev)
188 return -ENOMEM; 188 return -ENOMEM;
189 189
190 priv = netdev_priv(dev); 190 priv = netdev_priv(dev);
191 priv->dev = dev;
191 192
192 /* Set the info in the priv to the current info */ 193 /* Set the info in the priv to the current info */
193 priv->einfo = einfo; 194 priv->einfo = einfo;
@@ -261,10 +262,7 @@ static int gfar_probe(struct platform_device *pdev)
261 dev->hard_start_xmit = gfar_start_xmit; 262 dev->hard_start_xmit = gfar_start_xmit;
262 dev->tx_timeout = gfar_timeout; 263 dev->tx_timeout = gfar_timeout;
263 dev->watchdog_timeo = TX_TIMEOUT; 264 dev->watchdog_timeo = TX_TIMEOUT;
264#ifdef CONFIG_GFAR_NAPI 265 netif_napi_add(dev, &priv->napi, gfar_poll, GFAR_DEV_WEIGHT);
265 dev->poll = gfar_poll;
266 dev->weight = GFAR_DEV_WEIGHT;
267#endif
268#ifdef CONFIG_NET_POLL_CONTROLLER 266#ifdef CONFIG_NET_POLL_CONTROLLER
269 dev->poll_controller = gfar_netpoll; 267 dev->poll_controller = gfar_netpoll;
270#endif 268#endif
@@ -939,6 +937,8 @@ static int gfar_enet_open(struct net_device *dev)
939{ 937{
940 int err; 938 int err;
941 939
940 napi_enable(&priv->napi);
941
942 /* Initialize a bunch of registers */ 942 /* Initialize a bunch of registers */
943 init_registers(dev); 943 init_registers(dev);
944 944
@@ -946,10 +946,14 @@ static int gfar_enet_open(struct net_device *dev)
946 946
947 err = init_phy(dev); 947 err = init_phy(dev);
948 948
949 if(err) 949 if(err) {
950 napi_disable(&priv->napi);
950 return err; 951 return err;
952 }
951 953
952 err = startup_gfar(dev); 954 err = startup_gfar(dev);
955 if (err)
956 napi_disable(&priv->napi);
953 957
954 netif_start_queue(dev); 958 netif_start_queue(dev);
955 959
@@ -1102,6 +1106,9 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
1102static int gfar_close(struct net_device *dev) 1106static int gfar_close(struct net_device *dev)
1103{ 1107{
1104 struct gfar_private *priv = netdev_priv(dev); 1108 struct gfar_private *priv = netdev_priv(dev);
1109
1110 napi_disable(&priv->napi);
1111
1105 stop_gfar(dev); 1112 stop_gfar(dev);
1106 1113
1107 /* Disconnect from the PHY */ 1114 /* Disconnect from the PHY */
@@ -1318,7 +1325,7 @@ struct sk_buff * gfar_new_skb(struct net_device *dev, struct rxbd8 *bdp)
1318 return NULL; 1325 return NULL;
1319 1326
1320 alignamount = RXBUF_ALIGNMENT - 1327 alignamount = RXBUF_ALIGNMENT -
1321 (((unsigned) skb->data) & (RXBUF_ALIGNMENT - 1)); 1328 (((unsigned long) skb->data) & (RXBUF_ALIGNMENT - 1));
1322 1329
1323 /* We need the data buffer to be aligned properly. We will reserve 1330 /* We need the data buffer to be aligned properly. We will reserve
1324 * as many bytes as needed to align the data properly 1331 * as many bytes as needed to align the data properly
@@ -1390,12 +1397,12 @@ irqreturn_t gfar_receive(int irq, void *dev_id)
1390 1397
1391 /* support NAPI */ 1398 /* support NAPI */
1392#ifdef CONFIG_GFAR_NAPI 1399#ifdef CONFIG_GFAR_NAPI
1393 if (netif_rx_schedule_prep(dev)) { 1400 if (netif_rx_schedule_prep(dev, &priv->napi)) {
1394 tempval = gfar_read(&priv->regs->imask); 1401 tempval = gfar_read(&priv->regs->imask);
1395 tempval &= IMASK_RX_DISABLED; 1402 tempval &= IMASK_RX_DISABLED;
1396 gfar_write(&priv->regs->imask, tempval); 1403 gfar_write(&priv->regs->imask, tempval);
1397 1404
1398 __netif_rx_schedule(dev); 1405 __netif_rx_schedule(dev, &priv->napi);
1399 } else { 1406 } else {
1400 if (netif_msg_rx_err(priv)) 1407 if (netif_msg_rx_err(priv))
1401 printk(KERN_DEBUG "%s: receive called twice (%x)[%x]\n", 1408 printk(KERN_DEBUG "%s: receive called twice (%x)[%x]\n",
@@ -1569,23 +1576,16 @@ int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit)
1569} 1576}
1570 1577
1571#ifdef CONFIG_GFAR_NAPI 1578#ifdef CONFIG_GFAR_NAPI
1572static int gfar_poll(struct net_device *dev, int *budget) 1579static int gfar_poll(struct napi_struct *napi, int budget)
1573{ 1580{
1581 struct gfar_private *priv = container_of(napi, struct gfar_private, napi);
1582 struct net_device *dev = priv->dev;
1574 int howmany; 1583 int howmany;
1575 struct gfar_private *priv = netdev_priv(dev);
1576 int rx_work_limit = *budget;
1577
1578 if (rx_work_limit > dev->quota)
1579 rx_work_limit = dev->quota;
1580 1584
1581 howmany = gfar_clean_rx_ring(dev, rx_work_limit); 1585 howmany = gfar_clean_rx_ring(dev, budget);
1582 1586
1583 dev->quota -= howmany; 1587 if (howmany < budget) {
1584 rx_work_limit -= howmany; 1588 netif_rx_complete(dev, napi);
1585 *budget -= howmany;
1586
1587 if (rx_work_limit > 0) {
1588 netif_rx_complete(dev);
1589 1589
1590 /* Clear the halt bit in RSTAT */ 1590 /* Clear the halt bit in RSTAT */
1591 gfar_write(&priv->regs->rstat, RSTAT_CLEAR_RHALT); 1591 gfar_write(&priv->regs->rstat, RSTAT_CLEAR_RHALT);
@@ -1601,8 +1601,7 @@ static int gfar_poll(struct net_device *dev, int *budget)
1601 gfar_write(&priv->regs->rxic, 0); 1601 gfar_write(&priv->regs->rxic, 0);
1602 } 1602 }
1603 1603
1604 /* Return 1 if there's more work to do */ 1604 return howmany;
1605 return (rx_work_limit > 0) ? 0 : 1;
1606} 1605}
1607#endif 1606#endif
1608 1607