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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 /drivers/infiniband/hw/ehca/ehca_reqs.c
parent3971c9f6dbf26f077b929dbe14ced60a697ebcf0 (diff)
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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>
Diffstat (limited to 'drivers/infiniband/hw/ehca/ehca_reqs.c')
-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 3aacc8c..2ce8cff 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;