[ofa-general] [RFC][PATCH] IPoIB-cm: release connection if post_send drain WR failure

[Shirley Ma]

Hello Roland,

Roland Dreier <rdreier at cisco.com> wrote on 06/24/2008 08:11:56 PM:
>  > In case post_send drain WR failure, release connections in stale task.
> What is "post_send drain WR failure"?  When can it happen?
>  - R.

I saw it happened from below ipoib debug output on testing ehca2:

static void ipoib_cm_start_rx_drain(struct ipoib_dev_priv *priv)
{
....
        /*
         * QPs on flush list are error state.  This way, a "flush
         * error" WC will be immediately generated for each WR we post.
         */
        p = list_entry(priv->cm.rx_flush_list.next, typeof(*p), list);
        if (ib_post_send(p->qp, &ipoib_cm_rx_drain_wr, &bad_wr))
                ipoib_warn(priv, "failed to post drain wr\n");
...
}

Thanks
Shirley
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