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authorJoachim Fenkes <fenkes@de.ibm.com>2008-01-24 17:59:08 +0100
committerRoland Dreier <rolandd@cisco.com>2008-02-04 20:20:42 -0800
commit2b7274c39228d7a8c81a411dc3969763e9069c56 (patch)
tree596f69786ab9957a69a1d1e5da82d2fc900602c1
parent3971c9f6dbf26f077b929dbe14ced60a697ebcf0 (diff)
IB/ehca: Prevent sending UD packets to QP0
The IB spec doesn't allow packets to QP0 sent on any other VL than VL15. Hardware doesn't filter those packets on the send side, so we need to do this in the driver and firmware. As eHCA doesn't support QP0, we can just filter out all traffic going to QP0, regardless of SL or VL. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
-rw-r--r--drivers/infiniband/hw/ehca/ehca_reqs.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c
index 3aacc8cf1e4..2ce8cffb866 100644
--- a/drivers/infiniband/hw/ehca/ehca_reqs.c
+++ b/drivers/infiniband/hw/ehca/ehca_reqs.c
@@ -209,6 +209,10 @@ static inline int ehca_write_swqe(struct ehca_qp *qp,
ehca_gen_err("wr.ud.ah is NULL. qp=%p", qp);
return -EINVAL;
}
+ if (unlikely(send_wr->wr.ud.remote_qpn == 0)) {
+ ehca_gen_err("dest QP# is 0. qp=%x", qp->real_qp_num);
+ return -EINVAL;
+ }
my_av = container_of(send_wr->wr.ud.ah, struct ehca_av, ib_ah);
wqe_p->u.ud_av.ud_av = my_av->av;