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(parent: db3ea78) | patch
be2net: fix erx->rx_drops_no_frags wrap around
authorSathya Perla <sathya.perla@emulex.com>
Mon, 22 Aug 2011 19:41:53 +0000 (19:41 +0000)
committerDavid S. Miller <davem@davemloft.net>
Wed, 24 Aug 2011 23:19:29 +0000 (16:19 -0700)
commit09c1c68f2239dcd99b76be2c44e84811fba273db
treebbbede1f08fb5663a39528deabae91a20cef8969tree | snapshot (tar.gz zip)
parentdb3ea7819d035ff01c8260fce364511adfae0eaacommit | diff
be2net: fix erx->rx_drops_no_frags wrap around

The rx_drops_no_frags HW counter for RSS rings is 16bits in HW and can
wraparound often. Maintain a 32-bit accumulator in the driver to prevent
frequent wraparound.

Also, incorporated Eric's feedback to use ACCESS_ONCE() for the accumulator
write.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/emulex/benet/be_main.c diff | blob | blame | history