nvmet: support for csi identify ns

Implements reporting the I/O Command Set Independent Identify Namespace
command.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Keith Busch
2024-11-01 12:29:40 -07:00
parent 5fd075cdaf
commit e2758c76a0
2 changed files with 33 additions and 0 deletions

View File

@@ -912,6 +912,35 @@ out:
nvmet_req_complete(req, status);
}
static void nvmet_execute_id_cs_indep(struct nvmet_req *req)
{
struct nvme_id_ns_cs_indep *id;
u16 status;
status = nvmet_req_find_ns(req);
if (status)
goto out;
id = kzalloc(sizeof(*id), GFP_KERNEL);
if (!id) {
status = NVME_SC_INTERNAL;
goto out;
}
id->nstat = NVME_NSTAT_NRDY;
id->anagrpid = cpu_to_le32(req->ns->anagrpid);
id->nmic = NVME_NS_NMIC_SHARED;
if (req->ns->readonly)
id->nsattr |= NVME_NS_ATTR_RO;
if (req->ns->bdev && !bdev_nonrot(req->ns->bdev))
id->nsfeat |= NVME_NS_ROTATIONAL;
status = nvmet_copy_to_sgl(req, 0, id, sizeof(*id));
kfree(id);
out:
nvmet_req_complete(req, status);
}
static void nvmet_execute_identify(struct nvmet_req *req)
{
if (!nvmet_check_transfer_len(req, NVME_IDENTIFY_DATA_SIZE))
@@ -959,6 +988,9 @@ static void nvmet_execute_identify(struct nvmet_req *req)
case NVME_ID_CNS_NS_ACTIVE_LIST_CS:
nvmet_execute_identify_nslist(req, true);
return;
case NVME_ID_CNS_NS_CS_INDEP:
nvmet_execute_id_cs_indep(req);
return;
case NVME_ID_CNS_ENDGRP_LIST:
nvmet_execute_identify_endgrp_list(req);
return;