diff options
| author | David S. Miller <davem@davemloft.net> | 2013-01-29 22:58:04 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-02-14 10:49:05 -0800 |
| commit | d78378096e74b2fd0b42b74156ba0ae0567ea226 (patch) | |
| tree | a06e6237c8f7dc460bb689933ec1aef8140d78d0 | |
| parent | 909978d73590b07c3a050a569cc3bd44b1f9355c (diff) | |
via-rhine: Fix bugs in NAPI support.
[ Upstream commit 559bcac35facfed49ab4f408e162971612dcfdf3 ]
1) rhine_tx() should use dev_kfree_skb() not dev_kfree_skb_irq()
2) rhine_slow_event_task's NAPI triggering logic is racey, it
should just hit the interrupt mask register. This is the
same as commit 7dbb491878a2c51d372a8890fa45a8ff80358af1
("r8169: avoid NAPI scheduling delay.") made to fix the same
problem in the r8169 driver. From Francois Romieu.
Reported-by: Jamie Gloudon <jamie.gloudon@gmail.com>
Tested-by: Jamie Gloudon <jamie.gloudon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/ethernet/via/via-rhine.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c index fcfa01f7ceb6..4c76db4f0589 100644 --- a/drivers/net/ethernet/via/via-rhine.c +++ b/drivers/net/ethernet/via/via-rhine.c @@ -1802,7 +1802,7 @@ static void rhine_tx(struct net_device *dev) rp->tx_skbuff[entry]->len, PCI_DMA_TODEVICE); } - dev_kfree_skb_irq(rp->tx_skbuff[entry]); + dev_kfree_skb(rp->tx_skbuff[entry]); rp->tx_skbuff[entry] = NULL; entry = (++rp->dirty_tx) % TX_RING_SIZE; } @@ -2011,11 +2011,7 @@ 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); |