On Tue, Oct 08, 2024 at 09:13:48AM -0600, Keith Busch wrote:
> I still hope to see nvmet report this. It would be great to test this
> with HDD backed nvme-loop target.
I took the liberty to write one up. Looks like everything is reporting
as expected.
---
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index 954d4c0747704..e167c9a2ff995 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -685,6 +685,35 @@ static void nvmet_execute_identify_ctrl_nvm(struct nvmet_req *req)
nvmet_zero_sgl(req, 0, sizeof(struct nvme_id_ctrl_nvm)));
}
+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 = 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))
@@ -729,6 +758,9 @@ static void nvmet_execute_identify(struct nvmet_req *req)
break;
}
break;
+ case NVME_ID_CNS_NS_CS_INDEP:
+ nvmet_execute_id_cs_indep(req);
+ return;
}
pr_debug("unhandled identify cns %d on qid %d\n",
--
