Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit e10e271b authored by Dotan Barak's avatar Dotan Barak Committed by Roland Dreier
Browse files

IB/mthca: Correct reported SRQ size in MemFree case. 



MemFree devices need to reserve one shared receive queue (SRQ) work
request for internal use, so the capacity returned from the create_srq
and query_srq methods should be srq->max - 1.

Signed-off-by: default avatarDotan Barak <dotanb@mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent dc05980d

drivers/infiniband/hw/mthca/mthca_srq.c

+2 −2
Original line number Diff line number Diff line
@@ -271,7 +271,7 @@ int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd, 
	srq->first_free = 0;

	srq->last_free  = srq->max - 1;



	attr->max_wr    = srq->max;

	attr->max_wr    = (mthca_is_memfree(dev)) ? srq->max - 1 : srq->max;

	attr->max_sge   = srq->max_gs;



	return 0;
@@ -386,7 +386,7 @@ int mthca_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr) 
	} else

		srq_attr->srq_limit = 0;



	srq_attr->max_wr  = srq->max;

	srq_attr->max_wr  = (mthca_is_memfree(dev)) ? srq->max - 1 : srq->max;

	srq_attr->max_sge = srq->max_gs;



out: