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_verbs.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_verbs.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_verbs.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index b8381c5e72b..a4bf870c5e3 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -1683,6 +1683,7 @@ static ssize_t show_stats(struct class_device *cdev, char *buf) "RC OTH NAKs %d\n" "RC timeouts %d\n" "RC RDMA dup %d\n" + "RC stalls %d\n" "piobuf wait %d\n" "no piobuf %d\n" "PKT drops %d\n" @@ -1690,7 +1691,7 @@ static ssize_t show_stats(struct class_device *cdev, char *buf) dev->n_rc_resends, dev->n_rc_qacks, dev->n_rc_acks, dev->n_seq_naks, dev->n_rdma_seq, dev->n_rnr_naks, dev->n_other_naks, dev->n_timeouts, - dev->n_rdma_dup_busy, dev->n_piowait, + dev->n_rdma_dup_busy, dev->n_rc_stalls, dev->n_piowait, dev->n_no_piobuf, dev->n_pkt_drops, dev->n_wqe_errs); for (i = 0; i < ARRAY_SIZE(dev->opstats); i++) { const struct ipath_opcode_stats *si = &dev->opstats[i]; |