| From foo@baz Sun Jun 17 12:07:34 CEST 2018 |
| From: Jianchao Wang <jianchao.w.wang@oracle.com> |
| Date: Thu, 26 Apr 2018 11:52:39 +0800 |
| Subject: IB/rxe: add RXE_START_MASK for rxe_opcode IB_OPCODE_RC_SEND_ONLY_INV |
| |
| From: Jianchao Wang <jianchao.w.wang@oracle.com> |
| |
| [ Upstream commit 2da36d44a9d54a2c6e1f8da1f7ccc26b0bc6cfec ] |
| |
| w/o RXE_START_MASK, the last_psn of IB_OPCODE_RC_SEND_ONLY_INV |
| will not be updated in update_wqe_psn, and the corresponding |
| wqe will not be acked in rxe_completer due to its last_psn is |
| zero. Finally, the other wqe will also not be able to be acked, |
| because the wqe of IB_OPCODE_RC_SEND_ONLY_INV with last_psn 0 |
| is still there. This causes large amount of io timeout when |
| nvmeof is over rxe. |
| |
| Add RXE_START_MASK for IB_OPCODE_RC_SEND_ONLY_INV to fix this. |
| |
| Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com> |
| Reviewed-by: Zhu Yanjun <yanjun.zhu@oracle.com> |
| Signed-off-by: Doug Ledford <dledford@redhat.com> |
| Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| drivers/infiniband/sw/rxe/rxe_opcode.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/drivers/infiniband/sw/rxe/rxe_opcode.c |
| +++ b/drivers/infiniband/sw/rxe/rxe_opcode.c |
| @@ -390,7 +390,7 @@ struct rxe_opcode_info rxe_opcode[RXE_NU |
| .name = "IB_OPCODE_RC_SEND_ONLY_INV", |
| .mask = RXE_IETH_MASK | RXE_PAYLOAD_MASK | RXE_REQ_MASK |
| | RXE_COMP_MASK | RXE_RWR_MASK | RXE_SEND_MASK |
| - | RXE_END_MASK, |
| + | RXE_END_MASK | RXE_START_MASK, |
| .length = RXE_BTH_BYTES + RXE_IETH_BYTES, |
| .offset = { |
| [RXE_BTH] = 0, |
