diff options
| author | Bob Pearson <rpearsonhpe@gmail.com> | 2022-07-20 04:56:07 -0400 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-08-02 13:53:36 -0300 |
| commit | 62494ec7fbca4d58900eb62e075f2fedc85b5fb9 (patch) | |
| tree | b788f5759d837710cd2a8b25c5fca4de5ac0131c /drivers/infiniband | |
| parent | ae720bdb703b295fed4ded28e14dd06a534a3012 (diff) | |
| download | linux-62494ec7fbca4d58900eb62e075f2fedc85b5fb9.tar.gz linux-62494ec7fbca4d58900eb62e075f2fedc85b5fb9.tar.bz2 linux-62494ec7fbca4d58900eb62e075f2fedc85b5fb9.zip | |
RDMA/rxe: Split qp state for requester and completer
Currently the requester can continue to process send wqes after an local
qp operation error is detected because the setting of the qp state to the
error state is deferred until later. This patch splits the qp state for
the completer and requester into two separate states and sets
qp->req.state = QP_STATE_ERROR as soon as the error is detected before
another wqe can be executed.
Link: https://lore.kernel.org/r/1658307368-1851-4-git-send-email-lizhijian@fujitsu.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_comp.c | 6 | ||||
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_qp.c | 5 | ||||
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_req.c | 1 | ||||
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_verbs.h | 1 |
4 files changed, 10 insertions, 3 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_comp.c b/drivers/infiniband/sw/rxe/rxe_comp.c index bc53cad077aa..fb0c008af78c 100644 --- a/drivers/infiniband/sw/rxe/rxe_comp.c +++ b/drivers/infiniband/sw/rxe/rxe_comp.c @@ -567,10 +567,10 @@ int rxe_completer(void *arg) if (!rxe_get(qp)) return -EAGAIN; - if (!qp->valid || qp->req.state == QP_STATE_ERROR || - qp->req.state == QP_STATE_RESET) { + if (!qp->valid || qp->comp.state == QP_STATE_ERROR || + qp->comp.state == QP_STATE_RESET) { rxe_drain_resp_pkts(qp, qp->valid && - qp->req.state == QP_STATE_ERROR); + qp->comp.state == QP_STATE_ERROR); goto exit; } diff --git a/drivers/infiniband/sw/rxe/rxe_qp.c b/drivers/infiniband/sw/rxe/rxe_qp.c index eef91b8cb4ed..c6519b9b94fb 100644 --- a/drivers/infiniband/sw/rxe/rxe_qp.c +++ b/drivers/infiniband/sw/rxe/rxe_qp.c @@ -228,6 +228,7 @@ static int rxe_qp_init_req(struct rxe_dev *rxe, struct rxe_qp *qp, QUEUE_TYPE_FROM_CLIENT); qp->req.state = QP_STATE_RESET; + qp->comp.state = QP_STATE_RESET; qp->req.opcode = -1; qp->comp.opcode = -1; @@ -488,6 +489,7 @@ static void rxe_qp_reset(struct rxe_qp *qp) /* move qp to the reset state */ qp->req.state = QP_STATE_RESET; + qp->comp.state = QP_STATE_RESET; qp->resp.state = QP_STATE_RESET; /* let state machines reset themselves drain work and packet queues @@ -551,6 +553,7 @@ void rxe_qp_error(struct rxe_qp *qp) { qp->req.state = QP_STATE_ERROR; qp->resp.state = QP_STATE_ERROR; + qp->comp.state = QP_STATE_ERROR; qp->attr.qp_state = IB_QPS_ERR; /* drain work and packet queues */ @@ -688,6 +691,7 @@ int rxe_qp_from_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask, pr_debug("qp#%d state -> INIT\n", qp_num(qp)); qp->req.state = QP_STATE_INIT; qp->resp.state = QP_STATE_INIT; + qp->comp.state = QP_STATE_INIT; break; case IB_QPS_RTR: @@ -698,6 +702,7 @@ int rxe_qp_from_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask, case IB_QPS_RTS: pr_debug("qp#%d state -> RTS\n", qp_num(qp)); qp->req.state = QP_STATE_READY; + qp->comp.state = QP_STATE_READY; break; case IB_QPS_SQD: diff --git a/drivers/infiniband/sw/rxe/rxe_req.c b/drivers/infiniband/sw/rxe/rxe_req.c index f3bd071d3e7e..f63771207970 100644 --- a/drivers/infiniband/sw/rxe/rxe_req.c +++ b/drivers/infiniband/sw/rxe/rxe_req.c @@ -816,6 +816,7 @@ err: /* update wqe_index for each wqe completion */ qp->req.wqe_index = queue_next_index(qp->sq.queue, qp->req.wqe_index); wqe->state = wqe_state_error; + qp->req.state = QP_STATE_ERROR; rxe_run_task(&qp->comp.task, 0); exit: ret = -EAGAIN; diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.h b/drivers/infiniband/sw/rxe/rxe_verbs.h index a24fbe984066..96af3e054f4d 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.h +++ b/drivers/infiniband/sw/rxe/rxe_verbs.h @@ -129,6 +129,7 @@ struct rxe_req_info { }; struct rxe_comp_info { + enum rxe_qp_state state; u32 psn; int opcode; int timeout; |