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IB/ehca: Prevent sending UD packets to QP0

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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>
This commit is contained in:
Joachim Fenkes 2008-01-24 17:59:08 +01:00 committed by Roland Dreier
parent 3971c9f6db
commit 2b7274c392
1 changed files with 4 additions and 0 deletions
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4
drivers/infiniband/hw/ehca/ehca_reqs.c
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@ -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;