tree 52c1d7b74cf6c70efbebb9c42f0b0f9274effdf1
parent c7db20f5be73b6b3768d15b075a09e4b0d5c13f7
author Bernard Metzler <bmt@zurich.ibm.com> 1643562495 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1644341436 +0100

RDMA/siw: Fix broken RDMA Read Fence/Resume logic.

commit b43a76f423aa304037603fd6165c4a534d2c09a7 upstream.

Code unconditionally resumed fenced SQ processing after next RDMA Read
completion, even if other RDMA Read responses are still outstanding, or
ORQ is full. Also adds comments for better readability of fence
processing, and removes orq_get_tail() helper, which is not needed
anymore.

Fixes: 8b6a361b8c48 ("rdma/siw: receive path")
Fixes: a531975279f3 ("rdma/siw: main include file")
Link: https://lore.kernel.org/r/20220130170815.1940-1-bmt@zurich.ibm.com
Reported-by: Jared Holzman <jared.holzman@excelero.com>
Signed-off-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>