diff options
| author | Michael Chan | 2006-01-24 01:11:03 +0100 |
|---|---|---|
| committer | David S. Miller | 2006-01-24 01:11:03 +0100 |
| commit | 1269a8a64a37c8a06af672f4cff4fed16a478734 (patch) | |
| tree | 5d068c5d6af9928eb9652a24862826fd806df869 /drivers/net | |
| parent | [BNX2]: Fix UDP checksum verification (diff) | |
| download | kernel-qcow2-linux-1269a8a64a37c8a06af672f4cff4fed16a478734.tar.gz kernel-qcow2-linux-1269a8a64a37c8a06af672f4cff4fed16a478734.tar.xz kernel-qcow2-linux-1269a8a64a37c8a06af672f4cff4fed16a478734.zip | |
[BNX2]: Workaround hw interrupt bug
Add workaround for a hardware interrupt issue. When using INTA,
unmasking of the interrupt and the tag update should be done
separately to avoid some spurious interrupts,
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/bnx2.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index ec08f833c32d..7b99cf26a129 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -316,6 +316,10 @@ bnx2_enable_int(struct bnx2 *bp) u32 val; REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD, + BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | + BNX2_PCICFG_INT_ACK_CMD_MASK_INT | bp->last_status_idx); + + REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD, BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | bp->last_status_idx); val = REG_RD(bp, BNX2_HC_COMMAND); @@ -1892,9 +1896,20 @@ bnx2_poll(struct net_device *dev, int *budget) if (!bnx2_has_work(bp)) { netif_rx_complete(dev); + if (likely(bp->flags & USING_MSI_FLAG)) { + REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD, + BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | + bp->last_status_idx); + return 0; + } + REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD, + BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | + BNX2_PCICFG_INT_ACK_CMD_MASK_INT | + bp->last_status_idx); + REG_WR(bp, BNX2_PCICFG_INT_ACK_CMD, - BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | - bp->last_status_idx); + BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID | + bp->last_status_idx); return 0; } |