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

[Hoang-Nam Nguyen]

>  > 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");
>
> Was this with a kernel that had 863fb09f ("IB/ehca: Prevent posting of
> SQ WQEs if QP not in RTS") but not 088af154 ("IB/ehca: Reject send WRs
> only for RESET, INIT and RTR state")?  For example something between
> 2.6.25 and 2.6.26-rc4?
Right. BTW: It also occurs in ofed-1.3.1.

Nam