diff options
author | Ralph Campbell <ralph.campbell@qlogic.com> | 2007-08-25 16:45:03 -0700 |
---|---|---|
committer | Roland Dreier <rolandd@cisco.com> | 2007-10-09 20:51:20 -0700 |
commit | d42b01b584b6f55f70c56f6a3dabc26f4982d30d (patch) | |
tree | 7ad73c8795a5b594b2af67af280b58e0b3644580 /drivers/infiniband | |
parent | c9cf7db2bca9180f5888eebc23dc607666a9685b (diff) | |
download | linux-d42b01b584b6f55f70c56f6a3dabc26f4982d30d.tar.gz linux-d42b01b584b6f55f70c56f6a3dabc26f4982d30d.tar.bz2 linux-d42b01b584b6f55f70c56f6a3dabc26f4982d30d.zip |
IB/ipath: Implement IB_EVENT_QP_LAST_WQE_REACHED
This patch implements the IB_EVENT_QP_LAST_WQE_REACHED event which is
needed by ib_ipoib to destroy the QP when used in connected mode.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r-- | drivers/infiniband/hw/ipath/ipath_qp.c | 20 | ||||
-rw-r--r-- | drivers/infiniband/hw/ipath/ipath_rc.c | 12 | ||||
-rw-r--r-- | drivers/infiniband/hw/ipath/ipath_verbs.h | 2 |
3 files changed, 29 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index a8c4a6b03d7a..6a41fdbc8e57 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -377,13 +377,15 @@ static void ipath_reset_qp(struct ipath_qp *qp) * @err: the receive completion error to signal if a RWQE is active * * Flushes both send and receive work queues. + * Returns true if last WQE event should be generated. * The QP s_lock should be held and interrupts disabled. */ -void ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err) +int ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err) { struct ipath_ibdev *dev = to_idev(qp->ibqp.device); struct ib_wc wc; + int ret = 0; ipath_dbg("QP%d/%d in error state\n", qp->ibqp.qp_num, qp->remote_qpn); @@ -454,7 +456,10 @@ void ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err) wq->tail = tail; spin_unlock(&qp->r_rq.lock); - } + } else if (qp->ibqp.event_handler) + ret = 1; + + return ret; } /** @@ -473,6 +478,7 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, struct ipath_qp *qp = to_iqp(ibqp); enum ib_qp_state cur_state, new_state; unsigned long flags; + int lastwqe = 0; int ret; spin_lock_irqsave(&qp->s_lock, flags); @@ -532,7 +538,7 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, break; case IB_QPS_ERR: - ipath_error_qp(qp, IB_WC_WR_FLUSH_ERR); + lastwqe = ipath_error_qp(qp, IB_WC_WR_FLUSH_ERR); break; default: @@ -591,6 +597,14 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, qp->state = new_state; spin_unlock_irqrestore(&qp->s_lock, flags); + if (lastwqe) { + struct ib_event ev; + + ev.device = qp->ibqp.device; + ev.element.qp = &qp->ibqp; + ev.event = IB_EVENT_QP_LAST_WQE_REACHED; + qp->ibqp.event_handler(&ev, qp->ibqp.qp_context); + } ret = 0; goto bail; diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c index 53259daeb4f8..5c29b2bfea17 100644 --- a/drivers/infiniband/hw/ipath/ipath_rc.c +++ b/drivers/infiniband/hw/ipath/ipath_rc.c @@ -1497,11 +1497,21 @@ send_ack: static void ipath_rc_error(struct ipath_qp *qp, enum ib_wc_status err) { unsigned long flags; + int lastwqe; spin_lock_irqsave(&qp->s_lock, flags); qp->state = IB_QPS_ERR; - ipath_error_qp(qp, err); + lastwqe = ipath_error_qp(qp, err); spin_unlock_irqrestore(&qp->s_lock, flags); + + if (lastwqe) { + struct ib_event ev; + + ev.device = qp->ibqp.device; + ev.element.qp = &qp->ibqp; + ev.event = IB_EVENT_QP_LAST_WQE_REACHED; + qp->ibqp.event_handler(&ev, qp->ibqp.qp_context); + } } static inline void ipath_update_ack_queue(struct ipath_qp *qp, unsigned n) diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h index 619ad728b07b..a1972295bffd 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.h +++ b/drivers/infiniband/hw/ipath/ipath_verbs.h @@ -672,7 +672,7 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd, int ipath_destroy_qp(struct ib_qp *ibqp); -void ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err); +int ipath_error_qp(struct ipath_qp *qp, enum ib_wc_status err); int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, struct ib_udata *udata); |