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nvmet: implement supported features log

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This log is required for nvme 2.1.

Reviewed-by: Matias Bjørling <matias.bjorling@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Keith Busch 2024-11-04 14:07:42 -08:00
parent 83acb24e6d
commit e973c91727
2 changed files with 44 additions and 0 deletions
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33
drivers/nvme/target/admin-cmd.c
View File

@ -89,6 +89,7 @@ static void nvmet_execute_get_supported_log_pages(struct nvmet_req *req)
logs->lids[NVME_LOG_CHANGED_NS] = cpu_to_le32(NVME_LIDS_LSUPP);
logs->lids[NVME_LOG_CMD_EFFECTS] = cpu_to_le32(NVME_LIDS_LSUPP);
logs->lids[NVME_LOG_ANA] = cpu_to_le32(NVME_LIDS_LSUPP);
logs->lids[NVME_LOG_FEATURES] = cpu_to_le32(NVME_LIDS_LSUPP);
logs->lids[NVME_LOG_RESERVATION] = cpu_to_le32(NVME_LIDS_LSUPP);
status = nvmet_copy_to_sgl(req, 0, logs, sizeof(*logs));
@ -347,6 +348,36 @@ static void nvmet_execute_get_log_page_ana(struct nvmet_req *req)
nvmet_req_complete(req, status);
}
static void nvmet_execute_get_log_page_features(struct nvmet_req *req)
{
struct nvme_supported_features_log *features;
u16 status;
features = kzalloc(sizeof(*features), GFP_KERNEL);
if (!features) {
status = NVME_SC_INTERNAL;
goto out;
}
features->fis[NVME_FEAT_NUM_QUEUES] =
cpu_to_le32(NVME_FIS_FSUPP | NVME_FIS_CSCPE);
features->fis[NVME_FEAT_KATO] =
cpu_to_le32(NVME_FIS_FSUPP | NVME_FIS_CSCPE);
features->fis[NVME_FEAT_ASYNC_EVENT] =
cpu_to_le32(NVME_FIS_FSUPP | NVME_FIS_CSCPE);
features->fis[NVME_FEAT_HOST_ID] =
cpu_to_le32(NVME_FIS_FSUPP | NVME_FIS_CSCPE);
features->fis[NVME_FEAT_WRITE_PROTECT] =
cpu_to_le32(NVME_FIS_FSUPP | NVME_FIS_NSCPE);
features->fis[NVME_FEAT_RESV_MASK] =
cpu_to_le32(NVME_FIS_FSUPP | NVME_FIS_NSCPE);
status = nvmet_copy_to_sgl(req, 0, features, sizeof(*features));
kfree(features);
out:
nvmet_req_complete(req, status);
}
static void nvmet_execute_get_log_page(struct nvmet_req *req)
{
if (!nvmet_check_transfer_len(req, nvmet_get_log_page_len(req->cmd)))
@ -372,6 +403,8 @@ static void nvmet_execute_get_log_page(struct nvmet_req *req)
return nvmet_execute_get_log_cmd_effects_ns(req);
case NVME_LOG_ANA:
return nvmet_execute_get_log_page_ana(req);
case NVME_LOG_FEATURES:
return nvmet_execute_get_log_page_features(req);
case NVME_LOG_RESERVATION:
return nvmet_execute_get_log_page_resv(req);
}

11
include/linux/nvme.h
View File

@ -1256,6 +1256,7 @@ enum {
NVME_LOG_TELEMETRY_CTRL = 0x08,
NVME_LOG_ENDURANCE_GROUP = 0x09,
NVME_LOG_ANA = 0x0c,
NVME_LOG_FEATURES = 0x12,
NVME_LOG_DISC = 0x70,
NVME_LOG_RESERVATION = 0x80,
NVME_FWACT_REPL = (0 << 3),
@ -1271,6 +1272,16 @@ enum {
NVME_LIDS_LSUPP = 1 << 0,
};
struct nvme_supported_features_log {
__le32 fis[256];
};
enum {
NVME_FIS_FSUPP = 1 << 0,
NVME_FIS_NSCPE = 1 << 20,
NVME_FIS_CSCPE = 1 << 21,
};
/* NVMe Namespace Write Protect State */
enum {
NVME_NS_NO_WRITE_PROTECT = 0,