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Bug #38732

RDMA support of non-SQL qp is broken

Added by Yibo Cai about 5 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
% Done:

0%

Source:
Community (dev)
Tags:
master, 14.1.1
Backport:
Regression:
No
Severity:
2 - major
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

By setting "ms_async_rdma_support_srq = false", current RDMA code is supposed to support non-SQL queue pair.

But per my test, it doesn't work. Ceph monitor cannot receive any incoming message in the polling loop(https://github.com/ceph/ceph/blob/v14.1.1/src/msg/async/rdma/RDMAStack.cc#L287-L293).

Checking the code, looks non-SQL qp support is not fully implemented (server never calls ibv_post_recv, lacks per connection qp buffer management, pool concurrency, etc). Any plan to improve this?

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