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IB/mad: Report number of times a mad was retried

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To allow ULPs to tune timeout values and capture retry statistics,
report the number of times that a mad send operation was retried.

For RMPP mads, report the total number of times that the any portion
(send window) of the send operation was retried.

Signed-off-by: Sean Hefty <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>
This commit is contained in:
Sean Hefty 2007-11-27 00:11:04 -08:00 • committed by Roland Dreier
commit 4fc8cd4919
4 changed files with 13 additions and 5 deletions
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4
include/rdma/ib_mad.h
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@ -230,7 +230,9 @@ struct ib_class_port_info
* @seg_count: The number of RMPP segments allocated for this send.
* @seg_size: Size of each RMPP segment.
* @timeout_ms: Time to wait for a response.
* @retries: Number of times to retry a request for a response.
* @retries: Number of times to retry a request for a response. For MADs
* using RMPP, this applies per window. On completion, returns the number
* of retries needed to complete the transfer.
*
* Users are responsible for initializing the MAD buffer itself, with the
* exception of any RMPP header. Additional segment buffer space allocated