i40iw: Do not allow posting WR after QP is flushed (40837273) · Commits · 戴 / test

A Work Request (WR) posted after QP is flushed will not get a flush completion. Correct this problem by not allowing posting of WRs after a QP is flushed. Fixes: ("i40iw: add files for iwarp interface") Signed-off-by:

Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by:

Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/i40iw/i40iw_verbs.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -2202,6 +2202,12 @@ static int i40iw_post_send(struct ib_qp *ibqp,
		ukqp = &iwqp->sc_qp.qp_uk;

		spin_lock_irqsave(&iwqp->lock, flags);

		if (iwqp->flush_issued) {
		err = -EINVAL;
		goto out;
		}

		while (ib_wr) {
		inv_stag = false;
		memset(&info, 0, sizeof(info));
		@@ -2344,6 +2350,7 @@ static int i40iw_post_send(struct ib_qp *ibqp,
		ib_wr = ib_wr->next;
		}

		out:
		if (err)
		*bad_wr = ib_wr;
		else
		@@ -2376,6 +2383,12 @@ static int i40iw_post_recv(struct ib_qp *ibqp,

		memset(&post_recv, 0, sizeof(post_recv));
		spin_lock_irqsave(&iwqp->lock, flags);

		if (iwqp->flush_issued) {
		err = -EINVAL;
		goto out;
		}

		while (ib_wr) {
		post_recv.num_sges = ib_wr->num_sge;
		post_recv.wr_id = ib_wr->wr_id;

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