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nvmet: implement supported log pages

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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 14:00:14 -08:00
parent 61c9967cd6
commit 83acb24e6d
2 changed files with 37 additions and 0 deletions
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28
drivers/nvme/target/admin-cmd.c
View File

@ -71,6 +71,32 @@ static void nvmet_execute_get_log_page_error(struct nvmet_req *req)
nvmet_req_complete(req, 0);
}
static void nvmet_execute_get_supported_log_pages(struct nvmet_req *req)
{
struct nvme_supported_log *logs;
u16 status;
logs = kzalloc(sizeof(*logs), GFP_KERNEL);
if (!logs) {
status = NVME_SC_INTERNAL;
goto out;
}
logs->lids[NVME_LOG_SUPPORTED] = cpu_to_le32(NVME_LIDS_LSUPP);
logs->lids[NVME_LOG_ERROR] = cpu_to_le32(NVME_LIDS_LSUPP);
logs->lids[NVME_LOG_SMART] = cpu_to_le32(NVME_LIDS_LSUPP);
logs->lids[NVME_LOG_FW_SLOT] = cpu_to_le32(NVME_LIDS_LSUPP);
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_RESERVATION] = cpu_to_le32(NVME_LIDS_LSUPP);
status = nvmet_copy_to_sgl(req, 0, logs, sizeof(*logs));
kfree(logs);
out:
nvmet_req_complete(req, status);
}
static u16 nvmet_get_smart_log_nsid(struct nvmet_req *req,
struct nvme_smart_log *slog)
{
@ -327,6 +353,8 @@ static void nvmet_execute_get_log_page(struct nvmet_req *req)
return;
switch (req->cmd->get_log_page.lid) {
case NVME_LOG_SUPPORTED:
return nvmet_execute_get_supported_log_pages(req);
case NVME_LOG_ERROR:
return nvmet_execute_get_log_page_error(req);
case NVME_LOG_SMART:

9
include/linux/nvme.h
View File

@ -1245,6 +1245,7 @@ enum {
NVME_FEAT_WRITE_PROTECT = 0x84,
NVME_FEAT_VENDOR_START = 0xC0,
NVME_FEAT_VENDOR_END = 0xFF,
NVME_LOG_SUPPORTED = 0x00,
NVME_LOG_ERROR = 0x01,
NVME_LOG_SMART = 0x02,
NVME_LOG_FW_SLOT = 0x03,
@ -1262,6 +1263,14 @@ enum {
NVME_FWACT_ACTV = (2 << 3),
};
struct nvme_supported_log {
__le32 lids[256];
};
enum {
NVME_LIDS_LSUPP = 1 << 0,
};
/* NVMe Namespace Write Protect State */
enum {
NVME_NS_NO_WRITE_PROTECT = 0,