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| author | Parav Pandit <parav@mellanox.com> | 2017-02-27 23:21:33 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-04-04 09:48:23 -0600 |
| commit | 64a0ca88eaa66e3d219296b17aa08b78894e42c8 (patch) | |
| tree | da9d6c8470ede1cc415e7117d29cd3a5a9baed1d /drivers/nvme/target/io-cmd.c | |
| parent | 4151dd9a58c6b2758514fc88a1a3b02f9ab8b076 (diff) | |
| download | linux-64a0ca88eaa66e3d219296b17aa08b78894e42c8.tar.gz linux-64a0ca88eaa66e3d219296b17aa08b78894e42c8.tar.bz2 linux-64a0ca88eaa66e3d219296b17aa08b78894e42c8.zip | |
nvmet: Introduced helper routine for controller status check.
This patch introduces helper function for checking controller
status during admin and io command processing which returns u16
status. As to bring consistency on returning status, other
friend functions also now return u16 status instead of int
to match the spec.
As part of the theseerror log prints in also prints qid on
which command error occured.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme/target/io-cmd.c')
| -rw-r--r-- | drivers/nvme/target/io-cmd.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/drivers/nvme/target/io-cmd.c b/drivers/nvme/target/io-cmd.c index 190b68741a6a..27623f2bfe6b 100644 --- a/drivers/nvme/target/io-cmd.c +++ b/drivers/nvme/target/io-cmd.c @@ -196,26 +196,19 @@ static void nvmet_execute_write_zeroes(struct nvmet_req *req) } } -int nvmet_parse_io_cmd(struct nvmet_req *req) +u16 nvmet_parse_io_cmd(struct nvmet_req *req) { struct nvme_command *cmd = req->cmd; + u16 ret; - if (unlikely(!(req->sq->ctrl->cc & NVME_CC_ENABLE))) { - pr_err("got io cmd %d while CC.EN == 0\n", - cmd->common.opcode); + ret = nvmet_check_ctrl_status(req, cmd); + if (unlikely(ret)) { req->ns = NULL; - return NVME_SC_CMD_SEQ_ERROR | NVME_SC_DNR; - } - - if (unlikely(!(req->sq->ctrl->csts & NVME_CSTS_RDY))) { - pr_err("got io cmd %d while CSTS.RDY == 0\n", - cmd->common.opcode); - req->ns = NULL; - return NVME_SC_CMD_SEQ_ERROR | NVME_SC_DNR; + return ret; } req->ns = nvmet_find_namespace(req->sq->ctrl, cmd->rw.nsid); - if (!req->ns) + if (unlikely(!req->ns)) return NVME_SC_INVALID_NS | NVME_SC_DNR; switch (cmd->common.opcode) { @@ -237,7 +230,8 @@ int nvmet_parse_io_cmd(struct nvmet_req *req) req->execute = nvmet_execute_write_zeroes; return 0; default: - pr_err("unhandled cmd %d\n", cmd->common.opcode); + pr_err("unhandled cmd %d on qid %d\n", cmd->common.opcode, + req->sq->qid); return NVME_SC_INVALID_OPCODE | NVME_SC_DNR; } } |