[PATCH V2 1/5] nvme-cli: Decode "Supported Events Bitmap" in PEL header

[wenxiong at linux.ibm.com]

From: Wen Xiong <wenxiong at linux.ibm.com>

"Supported Events Bitmap" in PEL header shows what events
are supported in current nvme devices.

Persistent Event Log for device: nvme0n1
Action for Persistent Event Log: 0
..
..
..
Supported Events Bitmap:
        Support SMART/Health Log Snapshot Event(0x1)
        Support Firmware Commit Event(0x2)
        Support Timestamp Change Event(0x3)
        Support Power-on or Reset Event(0x4)
        Support NVM Subsystem Hardware Error Event(0x5)
        Support Change Namespace Event(0x6)
        Support Format NVM Start Event(0x7)
        Support Format NVM Completion Event(0x8)
        Support Sanitize Start Event(0x9)
        Support Sanitize Completion Event(0xa)
        Support Set Feature Event(0xb)
        Support Set Telemetry CRT  Event(0xc)
        Support Thermal Excursion Event(0xd)

Signed-off-by: Wen Xiong <wenxiong at linux.ibm.com>
---
 nvme-print.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++------
 nvme.c       |  4 ++--
 2 files changed, 48 insertions(+), 8 deletions(-)

diff --git a/nvme-print.c b/nvme-print.c
index 1556b52..1b419b7 100644
--- a/nvme-print.c
+++ b/nvme-print.c
@@ -1053,6 +1053,26 @@ void nvme_show_predictable_latency_event_agg_log(
 	}
 }
 
+const char *nvme_pel_event_to_string(int type)
+{
+	switch (type) {
+	case NVME_PEL_SMART_HEALTH_EVENT:	return "SMART/Health Log Snapshot Event(0x1)";
+	case NVME_PEL_FW_COMMIT_EVENT:	return "Firmware Commit Event(0x2)";
+	case NVME_PEL_TIMESTAMP_EVENT:	return "Timestamp Change Event(0x3)";
+	case NVME_PEL_POWER_ON_RESET_EVENT:	return "Power-on or Reset Event(0x4)";
+	case NVME_PEL_NSS_HW_ERROR_EVENT:	return "NVM Subsystem Hardware Error Event(0x5)";
+	case NVME_PEL_CHANGE_NS_EVENT:	return "Change Namespace Event(0x6)";
+	case NVME_PEL_FORMAT_START_EVENT:	return "Format NVM Start Event(0x7)";
+	case NVME_PEL_FORMAT_COMPLETION_EVENT:	return "Format NVM Completion Event(0x8)";
+	case NVME_PEL_SANITIZE_START_EVENT:	return "Sanitize Start Event(0x9)";
+	case NVME_PEL_SANITIZE_COMPLETION_EVENT:	return "Sanitize Completion Event(0xa)";
+	case NVME_PEL_SET_FEATURE_EVENT:	return "Set Feature Event(0xb)";
+	case NVME_PEL_TELEMETRY_CRT:		return "Set Telemetry CRT  Event(0xc)";
+	case NVME_PEL_THERMAL_EXCURSION_EVENT:	return "Thermal Excursion Event(0xd)";
+	default:			return NULL;
+	}
+}
+
 static const char *nvme_show_nss_hw_error(__u16 error_code)
 {
 	switch (error_code) {
@@ -1081,6 +1101,29 @@ static const char *nvme_show_nss_hw_error(__u16 error_code)
 	}
 }
 
+void add_bitmap(int i, __u8 seb, struct json_object *root, int json_flag)
+{
+	char evt_str[50];
+	char key[128];
+
+	for (int bit = 0; bit < 8; bit++) {
+		if (nvme_pel_event_to_string(bit + i * 8)) {
+			if (json_flag == 1) {
+				sprintf(key, "bitmap_%x", (bit + i * 8));
+				if ((seb >> bit) & 0x1)
+					snprintf(evt_str, sizeof(evt_str), "Support %s",
+						nvme_pel_event_to_string(bit + i * 8));
+				json_object_add_value_string(root, key, evt_str);
+			} else {
+				if (nvme_pel_event_to_string(bit + i * 8))
+					if ((seb >> bit) & 0x1)
+						printf("	Support %s\n",
+							nvme_pel_event_to_string(bit + i * 8));
+			}
+		}
+	}
+}
+
 void json_persistent_event_log(void *pevent_log_info, __u32 size)
 {
 	struct json_object *root;
@@ -1151,9 +1194,7 @@ void json_persistent_event_log(void *pevent_log_info, __u32 size)
 		for (int i = 0; i < 32; i++) {
 			if (pevent_log_head->seb[i] == 0)
 				continue;
-			sprintf(key, "bitmap_%d", i);
-			json_object_add_value_uint(root, key,
-				pevent_log_head->seb[i]);
+			add_bitmap(i, pevent_log_head->seb[i], root, 1);
 		}
 	} else {
 		printf("No log data can be shown with this log len at least " \
@@ -1479,12 +1520,11 @@ void nvme_show_persistent_event_log(void *pevent_log_info,
 			le32_to_cpu(pevent_log_head->rci));
 		if (human)
 			nvme_show_persistent_event_log_rci(pevent_log_head->rci);
-		printf("Supported Events Bitmap: ");
+		printf("Supported Events Bitmap: \n");
 		for (int i = 0; i < 32; i++) {
 			if (pevent_log_head->seb[i] == 0)
 				continue;
-			printf("  BitMap[%d] is 0x%x\n", i,
-				pevent_log_head->seb[i]);
+			add_bitmap(i, pevent_log_head->seb[i], NULL, 0);
 		}
 	} else {
 		printf("No log data can be shown with this log len at least " \
diff --git a/nvme.c b/nvme.c
index 6ebfa92..a68db6c 100644
--- a/nvme.c
+++ b/nvme.c
@@ -4922,7 +4922,7 @@ static int dsm(int argc, char **argv, struct command *cmd, struct plugin *plugin
 
 	nc = argconfig_parse_comma_sep_array(cfg.ctx_attrs, (int *)ctx_attrs, ARRAY_SIZE(ctx_attrs));
 	nb = argconfig_parse_comma_sep_array(cfg.blocks, (int *)nlbs, ARRAY_SIZE(nlbs));
-	ns = argconfig_parse_comma_sep_array_long(cfg.slbas, slbas, ARRAY_SIZE(slbas));
+	ns = argconfig_parse_comma_sep_array_long(cfg.slbas, (long long unsigned int *)slbas, ARRAY_SIZE(slbas));
 	nr = max(nc, max(nb, ns));
 	if (!nr || nr > 256) {
 		fprintf(stderr, "No range definition provided\n");
@@ -5067,7 +5067,7 @@ static int copy(int argc, char **argv, struct command *cmd, struct plugin *plugi
 		}
 	}
 
-	nvme_init_copy_range(copy, nlbs, slbas, eilbrts, elbatms, elbats, nr);
+	nvme_init_copy_range(copy, nlbs, (__u64 *)slbas, eilbrts, elbatms, elbats, nr);
 
 	err = nvme_copy(fd, cfg.namespace_id, copy, cfg.sdlba, nr, cfg.prinfor,
 			cfg.prinfow, cfg.dtype, cfg.dspec, cfg.format, cfg.lr,
-- 
2.27.0