Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=dcb3f974da827c964cb8d419fbb4350cdc08a559
Commit: dcb3f974da827c964cb8d419fbb4350cdc08a559
Parent: de98b693e9857e183679cd2f49b3c30d2bc57629
Author: Sean Hefty <[EMAIL PROTECTED]>
AuthorDate: Wed Aug 1 14:47:16 2007 -0700
Committer: Roland Dreier <[EMAIL PROTECTED]>
CommitDate: Tue Oct 9 19:59:17 2007 -0700
RDMA/cma: Queue IB CM MRAs to avoid unnecessary remote retries
Automatically queue MRA message to decrease the number of retries sent
by the remote side during connection establishment. This also has the
effect of increasing the overall connection timeout without using a
longer retry time in the case of dropped packets.
Signed-off-by: Sean Hefty <[EMAIL PROTECTED]>
Signed-off-by: Roland Dreier <[EMAIL PROTECTED]>
---
drivers/infiniband/core/cma.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 19c9172..7253952 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -52,6 +52,7 @@ MODULE_LICENSE("Dual BSD/GPL");
#define CMA_CM_RESPONSE_TIMEOUT 20
#define CMA_MAX_CM_RETRIES 15
+#define CMA_CM_MRA_SETTING (IB_CM_MRA_FLAG_DELAY | 24)
static void cma_add_one(struct ib_device *device);
static void cma_remove_one(struct ib_device *device);
@@ -1090,6 +1091,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct
ib_cm_event *ib_event)
event.param.ud.private_data_len =
IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE - offset;
} else {
+ ib_send_cm_mra(cm_id, CMA_CM_MRA_SETTING, NULL, 0);
conn_id = cma_new_conn_id(&listen_id->id, ib_event);
cma_set_req_event_data(&event, &ib_event->param.req_rcvd,
ib_event->private_data, offset);
-
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