IB/mthca: memfree completion with error FW bug workaround

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Memfree firmware is in rare cases reporting WQE index == base - 1 in
receive completion with error, instead of (rq size - 1); base is 0 in
mthca.  Here is a patch to avoid kernel crash and report a correct WR
id in this case.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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Michael S. Tsirkin 2006-06-13 17:19:42 +03:00 • committed by Roland Dreier

parent 13aa6ecb47

commit 4e56ea794e

1 changed files with 10 additions and 1 deletions

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11

drivers/infiniband/hw/mthca/mthca_cq.c

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