[PATCH v4 1/8] nvme: introduce NVMe Namespace Identification Descriptor structures

[Johannes Thumshirn]

Signed-off-by: Johannes Thumshirn <jthumsh...@suse.de>
Reviewed-by: Max Gurtovoy <m...@mellanox.com>
---
 include/linux/nvme.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index b625bacf37ef..afa6ef484e50 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -288,6 +288,7 @@ enum {
        NVME_ID_CNS_NS                  = 0x00,
        NVME_ID_CNS_CTRL                = 0x01,
        NVME_ID_CNS_NS_ACTIVE_LIST      = 0x02,
+       NVME_ID_CNS_NS_DESC_LIST        = 0x03,
        NVME_ID_CNS_NS_PRESENT_LIST     = 0x10,
        NVME_ID_CNS_NS_PRESENT          = 0x11,
        NVME_ID_CNS_CTRL_NS_LIST        = 0x12,
@@ -314,6 +315,22 @@ enum {
        NVME_NS_DPS_PI_TYPE3    = 3,
 };
 
+struct nvme_ns_identifier_hdr {
+       __u8 nidt;
+       __u8 nidl;
+       __le16 reserved;
+};
+
+#define NVME_NIDT_EUI64_LEN    8
+#define NVME_NIDT_NGUID_LEN    16
+#define NVME_NIDT_UUID_LEN     16
+
+enum {
+       NVME_NIDT_EUI64         = 0x01,
+       NVME_NIDT_NGUID         = 0x02,
+       NVME_NIDT_UUID          = 0x03,
+};
+
 struct nvme_smart_log {
        __u8                    critical_warning;
        __u8                    temperature[2];
@@ -658,6 +675,8 @@ struct nvme_identify {
        __u32                   rsvd11[5];
 };
 
+#define NVME_IDENTIFY_DATA_SIZE 4096
+
 struct nvme_features {
        __u8                    opcode;
        __u8                    flags;
-- 
2.12.0