summaryrefslogtreecommitdiff
path: root/include/rdma/rdmavt_qp.h
diff options
context:
space:
mode:
authorKaike Wan <kaike.wan@intel.com>2019-01-24 06:31:57 +0300
committerDoug Ledford <dledford@redhat.com>2019-02-06 01:53:55 +0300
commit039cd3daf19b9acbf080054d765cbceac842b6a0 (patch)
tree273419a3a755d80f2ccdbb335d771d5c4331da52 /include/rdma/rdmavt_qp.h
parentb126078e8957f3aea4a44b8916f2f3752b5c392d (diff)
downloadlinux-039cd3daf19b9acbf080054d765cbceac842b6a0.tar.xz
IB/hfi1: Increment the retry timeout value for TID RDMA READ request
The RC retry timeout value is based on the estimated time for the response packet to come back. However, for TID RDMA READ request, due to the use of header suppression, the driver is normally not notified for each incoming response packet until the last TID RDMA READ response packet. Consequently, the retry timeout value should be extended to cover the transaction time for the entire length of a segment (default 256K) instead of that for a single packet. This patch addresses the issue by introducing new retry timer functions to account for multiple packets and wrapper functions for backward compatibility. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma/rdmavt_qp.h')
-rw-r--r--include/rdma/rdmavt_qp.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h
index 9095a0b71250..d8d88d023092 100644
--- a/include/rdma/rdmavt_qp.h
+++ b/include/rdma/rdmavt_qp.h
@@ -688,7 +688,11 @@ enum hrtimer_restart rvt_rc_rnr_retry(struct hrtimer *t);
void rvt_add_rnr_timer(struct rvt_qp *qp, u32 aeth);
void rvt_del_timers_sync(struct rvt_qp *qp);
void rvt_stop_rc_timers(struct rvt_qp *qp);
-void rvt_add_retry_timer(struct rvt_qp *qp);
+void rvt_add_retry_timer_ext(struct rvt_qp *qp, u8 shift);
+static inline void rvt_add_retry_timer(struct rvt_qp *qp)
+{
+ rvt_add_retry_timer_ext(qp, 0);
+}
void rvt_copy_sge(struct rvt_qp *qp, struct rvt_sge_state *ss,
void *data, u32 length,