redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

bnx2x: Avoid sending multiple statistics queries

Browse source 
During traffic when DCB is enabled, it is possible for multiple instances
of statistics queries to be sent to the chip - this may cause the FW to assert.

This patch prevents the sending of an additional instance of statistics query
while the previous query hasn't completed.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Kravkov 2012-09-11 04:34:08 +00:00 committed by David S. Miller
parent 8624dd2a3e
commit bef05406ac
1 changed files with 5 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
View file

@ -1151,9 +1151,11 @@ static void bnx2x_stats_update(struct bnx2x *bp)
if (bp->port.pmf)
bnx2x_hw_stats_update(bp);
if (bnx2x_storm_stats_update(bp) && (bp->stats_pending++ == 3)) {
BNX2X_ERR("storm stats were not updated for 3 times\n");
bnx2x_panic();
if (bnx2x_storm_stats_update(bp)) {
if (bp->stats_pending++ == 3) {
BNX2X_ERR("storm stats were not updated for 3 times\n");
bnx2x_panic();
}
return;
}