diff options
| author | Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> | 2018-12-12 15:11:43 -0800 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-12-13 09:59:06 +0100 |
| commit | c6aa3542e01026a94d24713ee2c0dce517e9b6de (patch) | |
| tree | f3718d669e9f693c6a92a1a0ff97f9b49799403b /drivers/nvme/target/core.c | |
| parent | 3b031d15995f3e4c43e38159072f07efe3fa35d9 (diff) | |
nvmet: add error log support for file backend
This patch adds support for the file backend to populate the
error log entries. Here we map the errno to the NVMe status codes.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/target/core.c')
| -rw-r--r-- | drivers/nvme/target/core.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index 0b969977e361..cc81d0231587 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -45,6 +45,44 @@ u32 nvmet_ana_group_enabled[NVMET_MAX_ANAGRPS + 1]; u64 nvmet_ana_chgcnt; DECLARE_RWSEM(nvmet_ana_sem); +inline u16 errno_to_nvme_status(struct nvmet_req *req, int errno) +{ + u16 status; + + switch (errno) { + case -ENOSPC: + req->error_loc = offsetof(struct nvme_rw_command, length); + status = NVME_SC_CAP_EXCEEDED | NVME_SC_DNR; + break; + case -EREMOTEIO: + req->error_loc = offsetof(struct nvme_rw_command, slba); + status = NVME_SC_LBA_RANGE | NVME_SC_DNR; + break; + case -EOPNOTSUPP: + req->error_loc = offsetof(struct nvme_common_command, opcode); + switch (req->cmd->common.opcode) { + case nvme_cmd_dsm: + case nvme_cmd_write_zeroes: + status = NVME_SC_ONCS_NOT_SUPPORTED | NVME_SC_DNR; + break; + default: + status = NVME_SC_INVALID_OPCODE | NVME_SC_DNR; + } + break; + case -ENODATA: + req->error_loc = offsetof(struct nvme_rw_command, nsid); + status = NVME_SC_ACCESS_DENIED; + break; + case -EIO: + /* FALLTHRU */ + default: + req->error_loc = offsetof(struct nvme_common_command, opcode); + status = NVME_SC_INTERNAL | NVME_SC_DNR; + } + + return status; +} + static struct nvmet_subsys *nvmet_find_get_subsys(struct nvmet_port *port, const char *subsysnqn); |