diff options
| author | Xiao Yang <yangx.jy@fujitsu.com> | 2021-12-29 06:44:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 15:23:30 +0300 |
| commit | cdb2150050c79123f0c130a5696351930c469680 (patch) | |
| tree | 40543d89006947e94d5fd74a6ebc5a539264696a /drivers/infiniband | |
| parent | ed750e22e44366e264bcdf7b1cf0713f08f7980a (diff) | |
| download | linux-cdb2150050c79123f0c130a5696351930c469680.tar.xz | |
RDMA/rxe: Check the last packet by RXE_END_MASK
[ Upstream commit b1377cc37f6bebd57ce8747b7e16163a475af295 ]
It's wrong to check the last packet by RXE_COMP_MASK because the flag is
to indicate if responder needs to generate a completion.
Fixes: 9fcd67d1772c ("IB/rxe: increment msn only when completing a request")
Fixes: 8700e3e7c485 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20211229034438.1854908-1-yangx.jy@fujitsu.com
Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_resp.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_resp.c b/drivers/infiniband/sw/rxe/rxe_resp.c index 5501227ddc65..8ed172ab0beb 100644 --- a/drivers/infiniband/sw/rxe/rxe_resp.c +++ b/drivers/infiniband/sw/rxe/rxe_resp.c @@ -830,6 +830,10 @@ static enum resp_states execute(struct rxe_qp *qp, struct rxe_pkt_info *pkt) return RESPST_ERR_INVALIDATE_RKEY; } + if (pkt->mask & RXE_END_MASK) + /* We successfully processed this new request. */ + qp->resp.msn++; + /* next expected psn, read handles this separately */ qp->resp.psn = (pkt->psn + 1) & BTH_PSN_MASK; qp->resp.ack_psn = qp->resp.psn; @@ -837,11 +841,9 @@ static enum resp_states execute(struct rxe_qp *qp, struct rxe_pkt_info *pkt) qp->resp.opcode = pkt->opcode; qp->resp.status = IB_WC_SUCCESS; - if (pkt->mask & RXE_COMP_MASK) { - /* We successfully processed this new request. */ - qp->resp.msn++; + if (pkt->mask & RXE_COMP_MASK) return RESPST_COMPLETE; - } else if (qp_type(qp) == IB_QPT_RC) + else if (qp_type(qp) == IB_QPT_RC) return RESPST_ACKNOWLEDGE; else return RESPST_CLEANUP; |