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IB/ipath: Flush RWQEs if access error or invalid error seen

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If the receiver goes into the error state, we need to flush the
posted receive WQEs.

Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Bryan O'Sullivan
2006-09-28 09:00:14 -07:00
committed by Roland Dreier
parent 1fd3b40fde
commit 8d0208cb59
4 changed files with 26 additions and 9 deletions
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18
drivers/infiniband/hw/ipath/ipath_rc.c
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@@ -1293,6 +1293,14 @@ done:
return 1;
}
static void ipath_rc_error(struct ipath_qp *qp, enum ib_wc_status err)
{
spin_lock_irq(&qp->s_lock);
qp->state = IB_QPS_ERR;
ipath_error_qp(qp, err);
spin_unlock_irq(&qp->s_lock);
}
/**
* ipath_rc_rcv - process an incoming RC packet
* @dev: the device this packet came in on
@@ -1385,8 +1393,7 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
*/
if (qp->r_ack_state >= OP(COMPARE_SWAP))
goto send_ack;
/* XXX Flush WQEs */
qp->state = IB_QPS_ERR;
ipath_rc_error(qp, IB_WC_REM_INV_REQ_ERR);
qp->r_ack_state = OP(SEND_ONLY);
qp->r_nak_state = IB_NAK_INVALID_REQUEST;
qp->r_ack_psn = qp->r_psn;
@@ -1492,9 +1499,9 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr,
goto nack_inv;
ipath_copy_sge(&qp->r_sge, data, tlen);
qp->r_msn++;
if (opcode == OP(RDMA_WRITE_LAST) ||
opcode == OP(RDMA_WRITE_ONLY))
if (!qp->r_wrid_valid)
break;
qp->r_wrid_valid = 0;
wc.wr_id = qp->r_wr_id;
wc.status = IB_WC_SUCCESS;
wc.opcode = IB_WC_RECV;
@@ -1685,8 +1692,7 @@ nack_acc:
* is pending though.
*/
if (qp->r_ack_state < OP(COMPARE_SWAP)) {
/* XXX Flush WQEs */
qp->state = IB_QPS_ERR;
ipath_rc_error(qp, IB_WC_REM_ACCESS_ERR);
qp->r_ack_state = OP(RDMA_WRITE_ONLY);
qp->r_nak_state = IB_NAK_REMOTE_ACCESS_ERROR;
qp->r_ack_psn = qp->r_psn;