diff options
| author | Bryan O'Sullivan <bos@pathscale.com> | 2006-09-28 08:59:57 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-09-28 11:16:21 -0700 |
| commit | 6022943eb4cb3cb9e43f27f1faeaba38e162d966 (patch) | |
| tree | 0c495a94448610e20a4872416b85c8ffdb0f2adf /drivers/infiniband/hw/ipath/ipath_qp.c | |
| parent | fd6a79a786b84510d00ee6aa6449a468e6d75dee (diff) | |
IB/ipath: Limit # of packets sent without an ACK received
The sender requests an ACK every 1/2 MB to avoid retransmit timeouts that
were causing MVAPICH mod_bw to fail after a predictable number of sends.
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_qp.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_qp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index 224b0f40767..ecfaca7a571 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -342,6 +342,7 @@ static void ipath_reset_qp(struct ipath_qp *qp) qp->s_last = 0; qp->s_ssn = 1; qp->s_lsn = 0; + qp->s_wait_credit = 0; if (qp->r_rq.wq) { qp->r_rq.wq->head = 0; qp->r_rq.wq->tail = 0; @@ -516,7 +517,7 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, qp->remote_qpn = attr->dest_qp_num; if (attr_mask & IB_QP_SQ_PSN) { - qp->s_next_psn = attr->sq_psn; + qp->s_psn = qp->s_next_psn = attr->sq_psn; qp->s_last_psn = qp->s_next_psn - 1; } |