From e10e271bfd295bf805dc294460868e1deb938211 Mon Sep 17 00:00:00 2001 From: Dotan Barak <dotanb@mellanox.co.il> Date: Mon, 20 Mar 2006 10:08:26 -0800 Subject: [PATCH] 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: Dotan Barak <dotanb@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com> --- drivers/infiniband/hw/mthca/mthca_srq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c index 209d2bae2256..96fcc64c61cd 100644 --- a/drivers/infiniband/hw/mthca/mthca_srq.c +++ b/drivers/infiniband/hw/mthca/mthca_srq.c @@ -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: -- 2.34.1