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IB/cm: Include HCA ACK delay in local ACK timeout

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The IB CM should include the HCA ACK delay when calculating the local
ACK timeout value to use for RC QPs.  If the HCA ACK delay is large
enough relative to the packet life time, then if it is not taken into
account, the calculated timeout value ends up being too small, which
can result in "retry exceeded" errors.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Sean Hefty
2007-06-18 11:09:37 -07:00
committed by Roland Dreier
parent 24be6e81c7
commit 1d84612649
5 changed files with 57 additions and 18 deletions
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include/rdma/ib_cm.h
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@@ -385,7 +385,6 @@ struct ib_cm_rep_param {
u8 private_data_len;
u8 responder_resources;
u8 initiator_depth;
u8 target_ack_delay;
u8 failover_accepted;
u8 flow_control;
u8 rnr_retry_count;