diff options
| author | James Smart <jsmart2021@gmail.com> | 2017-03-23 20:41:27 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-04-04 09:48:23 -0600 |
| commit | 62eeacb0e04f2aff7099a7765f386bb7ba53d5e2 (patch) | |
| tree | 0ada4a3ef80d8a0a17bb65c9c6be0a6604269329 | |
| parent | c820ad4cdacbb272ec993738d1c7eb96f09ddcd5 (diff) | |
| download | lwn-62eeacb0e04f2aff7099a7765f386bb7ba53d5e2.tar.gz lwn-62eeacb0e04f2aff7099a7765f386bb7ba53d5e2.zip | |
nvme_fc: Clean up host fcpio done status handling
As Dan Carpenter pointed out: mixing 16-bit nvme status with 32-bit
error status from driver. Corrected comment on fcp request struct
status field, and converted done routine to explicitly set nvme status
codes for nvme status.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
| -rw-r--r-- | drivers/nvme/host/fc.c | 14 | ||||
| -rw-r--r-- | include/linux/nvme-fc-driver.h | 6 |
2 files changed, 10 insertions, 10 deletions
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index a02eeb69f85c..7a1d7ea5366e 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -1147,7 +1147,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req) struct nvme_fc_ctrl *ctrl = op->ctrl; struct nvme_fc_queue *queue = op->queue; struct nvme_completion *cqe = &op->rsp_iu.cqe; - u16 status; + u16 status = NVME_SC_SUCCESS; /* * WARNING: @@ -1183,8 +1183,8 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req) if (atomic_read(&op->state) == FCPOP_STATE_ABORTED) status = NVME_SC_ABORT_REQ | NVME_SC_DNR; - else - status = freq->status; + else if (freq->status) + status = NVME_SC_FC_TRANSPORT_ERROR; /* * For the linux implementation, if we have an unsuccesful @@ -1212,7 +1212,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req) */ if (freq->transferred_length != be32_to_cpu(op->cmd_iu.data_len)) { - status = -EIO; + status = NVME_SC_FC_TRANSPORT_ERROR; goto done; } op->nreq.result.u64 = 0; @@ -1229,7 +1229,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req) freq->transferred_length || op->rsp_iu.status_code || op->rqno != le16_to_cpu(cqe->command_id))) { - status = -EIO; + status = NVME_SC_FC_TRANSPORT_ERROR; goto done; } op->nreq.result = cqe->result; @@ -1237,7 +1237,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req) break; default: - status = -EIO; + status = NVME_SC_FC_TRANSPORT_ERROR; goto done; } @@ -1763,7 +1763,7 @@ nvme_fc_start_fcp_op(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue, op->fcp_req.io_dir = io_dir; op->fcp_req.transferred_length = 0; op->fcp_req.rcv_rsplen = 0; - op->fcp_req.status = 0; + op->fcp_req.status = NVME_SC_SUCCESS; op->fcp_req.sqid = cpu_to_le16(queue->qnum); /* diff --git a/include/linux/nvme-fc-driver.h b/include/linux/nvme-fc-driver.h index f21471f7ee40..16eb264980c2 100644 --- a/include/linux/nvme-fc-driver.h +++ b/include/linux/nvme-fc-driver.h @@ -137,9 +137,9 @@ enum nvmefc_fcp_datadir { * transferred. Should equal payload_length on success. * @rcv_rsplen: length, in bytes, of the FCP RSP IU received. * @status: Completion status of the FCP operation. must be 0 upon success, - * NVME_SC_FC_xxx value upon failure. Note: this is NOT a - * reflection of the NVME CQE completion status. Only the status - * of the FCP operation at the NVME-FC level. + * negative errno value upon failure (ex: -EIO). Note: this is + * NOT a reflection of the NVME CQE completion status. Only the + * status of the FCP operation at the NVME-FC level. */ struct nvmefc_fcp_req { void *cmdaddr; |