This is a note to let you know that I've just added the patch titled
IB/qib: Fix QP check when looping back to/from QP1
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ib-qib-fix-qp-check-when-looping-back-to-from-qp1.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6e0ea9e6cbcead7fa8c76e3e3b9de4a50c5131c5 Mon Sep 17 00:00:00 2001
From: Ira Weiny <ira.weiny@xxxxxxxxx>
Date: Wed, 18 Dec 2013 08:41:37 -0800
Subject: IB/qib: Fix QP check when looping back to/from QP1
From: Ira Weiny <ira.weiny@xxxxxxxxx>
commit 6e0ea9e6cbcead7fa8c76e3e3b9de4a50c5131c5 upstream.
The GSI QP type is compatible with and should be allowed to send data
to/from any UD QP. This was found when testing ibacm on the same node
as an SA.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@xxxxxxxxx>
Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/hw/qib/qib_ud.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
--- a/drivers/infiniband/hw/qib/qib_ud.c
+++ b/drivers/infiniband/hw/qib/qib_ud.c
@@ -57,13 +57,20 @@ static void qib_ud_loopback(struct qib_q
struct qib_sge *sge;
struct ib_wc wc;
u32 length;
+ enum ib_qp_type sqptype, dqptype;
qp = qib_lookup_qpn(ibp, swqe->wr.wr.ud.remote_qpn);
if (!qp) {
ibp->n_pkt_drops++;
return;
}
- if (qp->ibqp.qp_type != sqp->ibqp.qp_type ||
+
+ sqptype = sqp->ibqp.qp_type == IB_QPT_GSI ?
+ IB_QPT_UD : sqp->ibqp.qp_type;
+ dqptype = qp->ibqp.qp_type == IB_QPT_GSI ?
+ IB_QPT_UD : qp->ibqp.qp_type;
+
+ if (dqptype != sqptype ||
!(ib_qib_state_ops[qp->state] & QIB_PROCESS_RECV_OK)) {
ibp->n_pkt_drops++;
goto drop;
Patches currently in stable-queue which might be from ira.weiny@xxxxxxxxx are
queue-3.4/ib-qib-fix-qp-check-when-looping-back-to-from-qp1.patch
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