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Commit ccc57aac authored by Atsushi Nemoto's avatar Atsushi Nemoto Committed by Jeff Garzik
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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: default avatarAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent 59524a37

drivers/net/tc35815.c

+1 −1
Original line number Diff line number Diff line
@@ -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

			{