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Chuck Lever authored
The current CQ handler uses the ib_wc.opcode field to distinguish between event types. However, the contents of that field are not reliable if the completion status is not IB_WC_SUCCESS. When an error completion occurs on a send event, the CQ handler schedules a tasklet with something that is not a struct rpcrdma_rep. This is never correct behavior, and sometimes it results in a panic. To resolve this issue, split the completion queue into a send CQ and a receive CQ. The send CQ handler now handles only struct rpcrdma_mw wr_id's, and the receive CQ handler now handles only struct rpcrdma_rep wr_id's. Fix suggested by Shirley Ma <shirley.ma@oracle.com> Reported-by:
Rafael Reiter <rafael.reiter@ims.co.at> Fixes: 5c635e09 BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=73211Signed-off-by:
Chuck Lever <chuck.lever@oracle.com> Tested-by:
Klemens Senn <klemens.senn@ims.co.at> Tested-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
Anna Schumaker <Anna.Schumaker@Netapp.com>
fc664485