[PATCH 05/11] nvmet: report the Endurance Group Identifier in the CS-INDEP identify data

[Guixin Liu]

The Identify Namespace data structure (CNS 00h) reports the Endurance
Group Identifier of the namespace, but the I/O Command Set Independent
Identify Namespace data structure (CNS 08h) leaves the field zeroed.
Hosts that implement NVMe 2.0 or later, or that cannot use CNS 00h,
take the Endurance Group Identifier from the CS-INDEP data structure
and thus always see 0, which breaks the consumers of the identifier:
the FDP feature and log pages, and the Rotational Media Information
log page, are addressed by it.

Report the same Endurance Group Identifier as CNS 00h: each namespace
is its own endurance group, so the identifier equals the namespace
identifier.

Assisted-by: LLM
Signed-off-by: Guixin Liu <kanie at linux.alibaba.com>
---
 drivers/nvme/target/admin-cmd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index 7764a3c0195c9..aad5abdb6ef96 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -1081,6 +1081,7 @@ static void nvmet_execute_id_cs_indep(struct nvmet_req *req)
 	id->nstat = NVME_NSTAT_NRDY;
 	id->anagrpid = cpu_to_le32(req->ns->anagrpid);
 	id->nmic = NVME_NS_NMIC_SHARED;
+	id->endgid = cpu_to_le16(req->ns->nsid);
 	if (req->ns->readonly)
 		id->nsattr |= NVME_NS_ATTR_RO;
 	if (req->ns->bdev && bdev_rot(req->ns->bdev))
-- 
2.43.7