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IB/mthca: Fix posting >255 recv WRs for Tavor
author
Michael S. Tsirkin
<mst@dev.mellanox.co.il>
Mon, 14 May 2007 04:26:51 +0000
(07:26 +0300)
committer
Roland Dreier
<rolandd@cisco.com>
Mon, 14 May 2007 21:10:34 +0000
(14:10 -0700)
Fix posting lists of > 255 receive WRs for Tavor: rq.next_ind must
be updated each doorbell, otherwise the next doorbell will use an
incorrect index.
Found by Ronni Zimmermann at Mellanox.
Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
drivers/infiniband/hw/mthca/mthca_qp.c
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diff --git
a/drivers/infiniband/hw/mthca/mthca_qp.c
b/drivers/infiniband/hw/mthca/mthca_qp.c
index
fee60c8
..
72fabb8
100644
(file)
--- a/
drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/
drivers/infiniband/hw/mthca/mthca_qp.c
@@
-1862,6
+1862,7
@@
int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
dev->kar + MTHCA_RECEIVE_DOORBELL,
MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock));
+ qp->rq.next_ind = ind;
qp->rq.head += MTHCA_TAVOR_MAX_WQES_PER_RECV_DB;
size0 = 0;
}