bnx2x: Handle a rarely missed interrupt

Browse source

A rare case of no link due to a missed interrupt may occur due to a
race condition between acknowledging the IGU via the BAR and restoring the NIG
interrupt mask via the GRC.
To solve it, we wait for the IGU ack command to finish prior to restoring the
NIG interrupt mask.

Signed-off-by: Yaniv Rosner <yaniv.rosner@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:

Yaniv Rosner 2012-12-02 04:05:54 +00:00 • committed by David S. Miller

parent b343d0025b

commit 27c1151c32

2 changed files with 16 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

drivers/net/ethernet/broadcom/bnx2x/bnx2x.h

View file

15

drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c

View file