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| author | David S. Miller <davem@davemloft.net> | 2013-01-29 22:58:04 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-02-02 22:58:25 -0500 |
| commit | 559bcac35facfed49ab4f408e162971612dcfdf3 (patch) | |
| tree | a575a9c9014943a1cab0fc3dcb8a3d0f87202175 | |
| parent | 9165bf273e862c993f36aff0c149259faa72540d (diff) | |
| download | linux-stable-559bcac35facfed49ab4f408e162971612dcfdf3.tar.gz linux-stable-559bcac35facfed49ab4f408e162971612dcfdf3.tar.bz2 linux-stable-559bcac35facfed49ab4f408e162971612dcfdf3.zip | |
via-rhine: Fix bugs in NAPI support.
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>
| -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 7992b3e05d3d..78ace59efd29 100644 --- a/drivers/net/ethernet/via/via-rhine.c +++ b/drivers/net/ethernet/via/via-rhine.c @@ -1801,7 +1801,7 @@ 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; } @@ -2010,11 +2010,7 @@ 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); |