hw/nvme: add basic endurance group support

Add the mandatory Endurance Group identify data structures and log
pages.

For now, all namespaces in a subsystem belongs to a single Endurance
Group.

Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>

1 files changed, 35 insertions, 7 deletions

diff --git a/include/block/nvme.h b/include/block/nvme.h
index 8027b71..4abc1bb 100644
--- a/include/block/nvme.h
+++ b/include/block/nvme.h
@@ -58,6 +58,24 @@ enum NvmeBarRegs {
     NVME_REG_PMRMSCU = offsetof(NvmeBar, pmrmscu),
 };
 
+typedef struct QEMU_PACKED NvmeEndGrpLog {
+    uint8_t  critical_warning;
+    uint8_t  rsvd[2];
+    uint8_t  avail_spare;
+    uint8_t  avail_spare_thres;
+    uint8_t  percet_used;
+    uint8_t  rsvd1[26];
+    uint64_t end_estimate[2];
+    uint64_t data_units_read[2];
+    uint64_t data_units_written[2];
+    uint64_t media_units_written[2];
+    uint64_t host_read_commands[2];
+    uint64_t host_write_commands[2];
+    uint64_t media_integrity_errors[2];
+    uint64_t no_err_info_log_entries[2];
+    uint8_t rsvd2[352];
+} NvmeEndGrpLog;
+
 enum NvmeCapShift {
     CAP_MQES_SHIFT     = 0,
     CAP_CQR_SHIFT      = 16,
@@ -1005,11 +1023,12 @@ enum {
 };
 
 enum NvmeLogIdentifier {
-    NVME_LOG_ERROR_INFO     = 0x01,
-    NVME_LOG_SMART_INFO     = 0x02,
-    NVME_LOG_FW_SLOT_INFO   = 0x03,
-    NVME_LOG_CHANGED_NSLIST = 0x04,
-    NVME_LOG_CMD_EFFECTS    = 0x05,
+    NVME_LOG_ERROR_INFO                 = 0x01,
+    NVME_LOG_SMART_INFO                 = 0x02,
+    NVME_LOG_FW_SLOT_INFO               = 0x03,
+    NVME_LOG_CHANGED_NSLIST             = 0x04,
+    NVME_LOG_CMD_EFFECTS                = 0x05,
+    NVME_LOG_ENDGRP                     = 0x09,
 };
 
 typedef struct QEMU_PACKED NvmePSD {
@@ -1091,7 +1110,10 @@ typedef struct QEMU_PACKED NvmeIdCtrl {
     uint16_t    mntmt;
     uint16_t    mxtmt;
     uint32_t    sanicap;
-    uint8_t     rsvd332[180];
+    uint8_t     rsvd332[6];
+    uint16_t    nsetidmax;
+    uint16_t    endgidmax;
+    uint8_t     rsvd342[170];
     uint8_t     sqes;
     uint8_t     cqes;
     uint16_t    maxcmd;
@@ -1134,6 +1156,7 @@ enum NvmeIdCtrlOaes {
 };
 
 enum NvmeIdCtrlCtratt {
+    NVME_CTRATT_ENDGRPS = 1 <<  4,
     NVME_CTRATT_ELBAS   = 1 << 15,
 };
 
@@ -1227,6 +1250,7 @@ enum NvmeNsAttachmentOperation {
 #define NVME_AEC_SMART(aec)         (aec & 0xff)
 #define NVME_AEC_NS_ATTR(aec)       ((aec >> 8) & 0x1)
 #define NVME_AEC_FW_ACTIVATION(aec) ((aec >> 9) & 0x1)
+#define NVME_AEC_ENDGRP_NOTICE(aec) ((aec >> 14) & 0x1)
 
 #define NVME_ERR_REC_TLER(err_rec)  (err_rec & 0xffff)
 #define NVME_ERR_REC_DULBE(err_rec) (err_rec & 0x10000)
@@ -1338,7 +1362,10 @@ typedef struct QEMU_PACKED NvmeIdNs {
     uint16_t    mssrl;
     uint32_t    mcl;
     uint8_t     msrc;
-    uint8_t     rsvd81[23];
+    uint8_t     rsvd81[18];
+    uint8_t     nsattr;
+    uint16_t    nvmsetid;
+    uint16_t    endgid;
     uint8_t     nguid[16];
     uint64_t    eui64;
     NvmeLBAF    lbaf[NVME_MAX_NLBAF];
@@ -1655,5 +1682,6 @@ static inline void _nvme_check_size(void)
     QEMU_BUILD_BUG_ON(sizeof(NvmePriCtrlCap) != 4096);
     QEMU_BUILD_BUG_ON(sizeof(NvmeSecCtrlEntry) != 32);
     QEMU_BUILD_BUG_ON(sizeof(NvmeSecCtrlList) != 4096);
+    QEMU_BUILD_BUG_ON(sizeof(NvmeEndGrpLog) != 512);
 }
 #endif