librdmacm/man: update man pages to clarify connection request params
I think you have mentioned that some documentation update is planned?
See the man page updates that were made. There may still be some errors
or omissions, but I tried to address Doug's comments.
- param.retry_count is ignored in the passive side rdma-cm code and the
IB cm uses the one present in the req message.
correct - there's a comment in the header file about the passive side
ignoring this value
- param.rnr_retry_count is not ignored in the passive side, but from
looking in the code, I was not sure if the value used is the one present
in the req or the one supplied by the passive consumer.
The passive side uses the value from the req. The active side uses the
value from the rep.
- param.flow_control is a pure SW field which does not get into the QP
attr. My understanding is that IB RC flow-control means non zero rnr
counter, is this all? if yes, maybe we need to expose only
rnr_retry_count field
It's a property of the HCA, but it's not clear to me at the moment what
a user does with this field.
- Sean
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