[PATCH] IB/ehca: Return correct #SGEs for SRQ
flat view
DORMANTno replies
From: Joachim Fenkes <hidden>
Date: 2007-12-10 11:21:41
Also in:
lkml
Subsystem:
infiniband subsystem, the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Linus Torvalds
Firmware would round up the number of SGEs to four, because the WQE structure holds four SGEs. For SRQ, only three are supported, so return a fixed value instead. Signed-off-by: Joachim Fenkes <redacted> --- The patch will apply cleanly on top of Roland's git. Please review and apply for 2.6.24 -- Thanks! drivers/infiniband/hw/ehca/ehca_qp.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c
index dd12668..eff5fb5 100644
--- a/drivers/infiniband/hw/ehca/ehca_qp.c
+++ b/drivers/infiniband/hw/ehca/ehca_qp.c@@ -838,7 +838,7 @@ struct ib_srq *ehca_create_srq(struct ib_pd *pd, /* copy back return values */ srq_init_attr->attr.max_wr = qp_init_attr.cap.max_recv_wr; - srq_init_attr->attr.max_sge = qp_init_attr.cap.max_recv_sge; + srq_init_attr->attr.max_sge = 3; /* drive SRQ into RTR state */ mqpcb = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
@@ -1750,7 +1750,7 @@ int ehca_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr) } srq_attr->max_wr = qpcb->max_nr_outst_recv_wr - 1; - srq_attr->max_sge = qpcb->actual_nr_sges_in_rq_wqe; + srq_attr->max_sge = 3; srq_attr->srq_limit = EHCA_BMASK_GET( MQPCB_CURR_SRQ_LIMIT, qpcb->curr_srq_limit);
--
1.5.2