mlx4_core: Implement SRQ object lookup from srqn
authorShlomo Pongratz <shlomop@mellanox.com>
Wed, 10 Apr 2013 14:26:47 +0000 (14:26 +0000)
committerRoland Dreier <roland@purestorage.com>
Wed, 17 Apr 2013 05:42:55 +0000 (22:42 -0700)
commit9f550553a470d3b05fc8bdced3a738d8ed5b8d8a
tree8fd3f2332afb1827cc701192cca1153e63962185
parenteec9e29fc5e9b417649830ab76a3aa10b90d2e9f
mlx4_core: Implement SRQ object lookup from srqn

Expose a new API mlx4_srq_lookup() to retrive a SRQ based on its
number.  This API is needed in the mlx4_ib driver CQ polling logic,
when a work completion is associated with a XRC TGT QP.  Since a
target QP may redirect to more than one XRC SRQ, the srq field in the
QP has no usage and the real XRC SRQ need to be retrived using the
information from the XRCETH IB header which is placed in the HW CQE.

Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
drivers/net/ethernet/mellanox/mlx4/srq.c
include/linux/mlx4/srq.h