pulgin/ocp:Added the OCP2.7 supported Get feature FID=CAh command api

Implemented the OCP 2.7 spec supported Get Feature FID=CAh command api to fetch idle wake up time configuration

Reviewed-by: Karthik Balan <[email protected]>
Reviewed-by: Arunpandian J <[email protected]>
Signed-off-by: Praveen Kumar B/Praveen Kumar B <[email protected]>

Author: Praveen Kumar B/Praveen Kumar B

plugins/ocp/ocp-nvme.c

@@ -2974,3 +2974,74 @@ static int hwcomp_log(int argc, char **argv, struct command *acmd, struct plugin
 {
 	return ocp_hwcomp_log(argc, argv, acmd, plugin);
 }
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+/// Idle Wake Up Time Configuration (Feature Identifier CAh) Get Feature
+static int ocp_get_idle_wakeup_time_config_feature(int argc, char **argv,
+					            struct command *acmd, struct plugin *plugin)
+{
+	const char *desc = "Define Issue Get Feature cmd (FID: 0xCA) Idle Wake Up Time";
+	const char *sel = "[0-3]: current/default/saved/supported/";
+	const char *nsid = "Byte[04-07]: Namespace Identifier Valid/Invalid/Inactive";
+
+	_cleanup_nvme_global_ctx_ struct nvme_global_ctx *ctx = NULL;
+	_cleanup_nvme_transport_handle_ struct nvme_transport_handle *hdl = NULL;
+
+	__u64 result;
+	int err;
+	bool uuid;
+	__u8 uuid_index = 0;
+
+	struct config {
+		__u8 sel;
+		__u32 nsid;
+	};
+
+	struct config cfg = {
+		.sel = 0,
+		.nsid = 0,
+	};
+
+	OPT_ARGS(opts) = {
+		OPT_BYTE("sel", 's', &cfg.sel, sel),
+		OPT_UINT("namespace-id", 'n', &cfg.nsid, nsid),
+		OPT_FLAG("no-uuid", 'u', NULL, no_uuid),
+		OPT_END()
+	};
+
+	err = parse_and_open(&ctx, &hdl, argc, argv, desc, opts);
+	if (err)
+		return err;
+
+	uuid = !argconfig_parse_seen(opts, "no-uuid");
+
+	if (uuid) {
+		/* OCP 2.0 requires UUID index support */
+		err = ocp_get_uuid_index(hdl, &uuid_index);
+		if (err || !uuid_index) {
+			nvme_show_error("ERROR: No OCP UUID index found");
+			return err;
+		}
+	}
+
+	err = nvme_get_features(hdl, cfg.nsid, OCP_FID_IWTC, cfg.sel, 0,
+			uuid_index, NULL, 0, &result);
+	if (!err) {
+		if (result == 0){
+			printf("get-feature:0xCA SEL=%s, Idle WakeUp Time is Disabled: %#016"PRIx64"\n",
+			nvme_select_to_string(cfg.sel), (uint64_t)result);
+		} else{
+			printf("get-feature:0xCA SEL=%s,Idle WakeUp Time is: %#016"PRIx64"\n",
+			nvme_select_to_string(cfg.sel), (uint64_t)result);
+		}
+		if (cfg.sel == NVME_GET_FEATURES_SEL_SUPPORTED)
+			nvme_show_select_result(0xCA, result);
+	} else {
+		nvme_show_error("Could not get feature: 0xCA");
+	}
+
+	return err;
+}

plugins/ocp/ocp-nvme.h

@@ -48,6 +48,8 @@ PLUGIN(NAME("ocp", "OCP cloud SSD extensions", OCP_PLUGIN_VERSION),
 		      get_clear_pcie_correctable_error_counters)
 		ENTRY("get-telemetry-profile", "Get Telemetry Profile Feature",
 		      ocp_get_telemetry_profile_feature)
+		ENTRY("get-idle-wakeup-time-config", "Get Idle Wake Up Time Configuration",
+		      ocp_get_idle_wakeup_time_config_feature)
 	)
 );
 
@@ -279,5 +281,6 @@ enum ocp_dssd_feature_id {
 	OCP_FID_DSSDPS, /* DSSD Power State */
 	OCP_FID_TEL_CFG, /* Telemetry Profile */
 	OCP_FID_DAEC, /* DSSD Asynchronous Event Configuration */
+	OCP_FID_IWTC, /* Idle Wake Up Time Configuration */
 };
 #endif /* OCP_NVME_H */