diff options
| author | Minwoo Im <minwoo.im@samsung.com> | 2024-05-29 21:42:31 +0900 |
|---|---|---|
| committer | Klaus Jensen <k.jensen@samsung.com> | 2024-07-11 17:05:37 +0200 |
| commit | 6471556500378c9ce38f58cb6c97217778d14226 (patch) | |
| tree | f6af8511667ff06fed064db408e0ab15dc64fe5e | |
| parent | 8ab8a6dbe416d9db1edc7897133ab4d55a080cc2 (diff) | |
| download | qemu-6471556500378c9ce38f58cb6c97217778d14226.zip qemu-6471556500378c9ce38f58cb6c97217778d14226.tar.gz qemu-6471556500378c9ce38f58cb6c97217778d14226.tar.bz2 | |
hw/nvme: add Identify Endurance Group List
Commit 73064edfb864 ("hw/nvme: flexible data placement emulation")
intorudced NVMe FDP feature to nvme-subsys and nvme-ctrl with a
single endurance group #1 supported. This means that controller should
return proper identify data to host with Identify Endurance Group List
(CNS 19h). But, yes, only just for the endurance group #1. This patch
allows host applications to ask for which endurance group is available
and utilize FDP through that endurance group.
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Minwoo Im <minwoo.im@samsung.com>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
| -rw-r--r-- | hw/nvme/ctrl.c | 22 | ||||
| -rw-r--r-- | include/block/nvme.h | 1 |
2 files changed, 23 insertions, 0 deletions
diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index f3ae548..50f8cc9 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -5629,6 +5629,26 @@ static uint16_t nvme_identify_nslist_csi(NvmeCtrl *n, NvmeRequest *req, return nvme_c2h(n, list, data_len, req); } +static uint16_t nvme_endurance_group_list(NvmeCtrl *n, NvmeRequest *req) +{ + uint16_t list[NVME_CONTROLLER_LIST_SIZE] = {}; + uint16_t *nr_ids = &list[0]; + uint16_t *ids = &list[1]; + uint16_t endgid = le32_to_cpu(req->cmd.cdw11) & 0xffff; + + /* + * The current nvme-subsys only supports Endurance Group #1. + */ + if (!endgid) { + *nr_ids = 1; + ids[0] = 1; + } else { + *nr_ids = 0; + } + + return nvme_c2h(n, list, sizeof(list), req); +} + static uint16_t nvme_identify_ns_descr_list(NvmeCtrl *n, NvmeRequest *req) { NvmeNamespace *ns; @@ -5744,6 +5764,8 @@ static uint16_t nvme_identify(NvmeCtrl *n, NvmeRequest *req) return nvme_identify_nslist(n, req, false); case NVME_ID_CNS_CS_NS_ACTIVE_LIST: return nvme_identify_nslist_csi(n, req, true); + case NVME_ID_CNS_ENDURANCE_GROUP_LIST: + return nvme_endurance_group_list(n, req); case NVME_ID_CNS_CS_NS_PRESENT_LIST: return nvme_identify_nslist_csi(n, req, false); case NVME_ID_CNS_NS_DESCR_LIST: diff --git a/include/block/nvme.h b/include/block/nvme.h index bb231d0..7c77d38 100644 --- a/include/block/nvme.h +++ b/include/block/nvme.h @@ -1074,6 +1074,7 @@ enum NvmeIdCns { NVME_ID_CNS_CTRL_LIST = 0x13, NVME_ID_CNS_PRIMARY_CTRL_CAP = 0x14, NVME_ID_CNS_SECONDARY_CTRL_LIST = 0x15, + NVME_ID_CNS_ENDURANCE_GROUP_LIST = 0x19, NVME_ID_CNS_CS_NS_PRESENT_LIST = 0x1a, NVME_ID_CNS_CS_NS_PRESENT = 0x1b, NVME_ID_CNS_IO_COMMAND_SET = 0x1c, |