On 07/22/2011 01:47 PM, Bernard Metzler wrote:
> +int siw_post_receive(struct ib_qp *ofa_qp, struct ib_recv_wr *wr,
> + struct ib_recv_wr **bad_wr)
> +{
> + struct siw_wqe *wqe = NULL;
> + struct siw_qp *qp = siw_qp_ofa2siw(ofa_qp);
> + unsigned long flags;
> + int rv = 0;
> +
> + dprint(DBG_WR|DBG_TX, "(QP%d): state=%d\n", QP_ID(qp),
> + qp->attrs.state);
> +
> + if (qp->srq)
> + return -EOPNOTSUPP; /* what else from errno.h? */
bad_wr is not set.
> + /*
> + * Try to acquire QP state lock. Must be non-blocking
> + * to accommodate kernel clients needs.
> + */
> + if (!down_read_trylock(&qp->state_lock)) {
> + *bad_wr = wr;
> + return -ENOTCONN;
> + }
> +
> + if (qp->attrs.state > SIW_QP_STATE_RTS) {
> + up_read(&qp->state_lock);
> + dprint(DBG_ON, " (QP%d): state=%d\n", QP_ID(qp),
> + qp->attrs.state);
> + return -EINVAL;
ditto.
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