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| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2008-06-26 17:14:15 +0900 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-06-27 01:27:43 -0400 |
| commit | ccc57aac9c9532b4540968632a8c4a0b946dbcc4 (patch) | |
| tree | b7f24f9c34bfd1efd964390ae5a4be823a5c84b0 /drivers/net/tc35815.c | |
| parent | 59524a37446e18a672188d86d23c8c76fd488621 (diff) | |
| download | linux-ccc57aac9c9532b4540968632a8c4a0b946dbcc4.tar.gz linux-ccc57aac9c9532b4540968632a8c4a0b946dbcc4.tar.bz2 linux-ccc57aac9c9532b4540968632a8c4a0b946dbcc4.zip | |
tc35815: Fix receiver hangup on Rx FIFO overflow
On Rx FIFO overflow error, the controller consume a buffer descriptor
but currently the driver does not give it back to the controller.
This results unrecoverable 'Buffer List Exhausted' condition. This
patch fix this problem by moving a "fbl_count--" line to proper place.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/net/tc35815.c')
| -rw-r--r-- | drivers/net/tc35815.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c index dccea525165e..b07b8cbadeaf 100644 --- a/drivers/net/tc35815.c +++ b/drivers/net/tc35815.c @@ -1736,7 +1736,6 @@ tc35815_rx(struct net_device *dev) skb = lp->rx_skbs[cur_bd].skb; prefetch(skb->data); lp->rx_skbs[cur_bd].skb = NULL; - lp->fbl_count--; pci_unmap_single(lp->pci_dev, lp->rx_skbs[cur_bd].skb_dma, RX_BUF_SIZE, PCI_DMA_FROMDEVICE); @@ -1792,6 +1791,7 @@ tc35815_rx(struct net_device *dev) #ifdef TC35815_USE_PACKEDBUFFER while (lp->fbl_curid != id) #else + lp->fbl_count--; while (lp->fbl_count < RX_BUF_NUM) #endif { |