From: Dotan Barak Date: Mon, 20 Mar 2006 18:08:26 +0000 (-0800) Subject: IB/mthca: Correct reported SRQ size in MemFree case. X-Git-Tag: v2.6.17-rc1~1180^2~2 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e10e271bfd295bf805dc294460868e1deb938211;p=linux-2.6 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 Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c index 209d2bae22..96fcc64c61 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: