plugins/solidigm: Added OCP 2.0 vs-drive-info command.

Signed-off-by: Leonardo da Cunha <[email protected]>

plugins/solidigm/meson.build

@@ -9,6 +9,7 @@ sources += [
   'plugins/solidigm/solidigm-internal-logs.c',
   'plugins/solidigm/solidigm-market-log.c',
   'plugins/solidigm/solidigm-temp-stats.c',
+  'plugins/solidigm/solidigm-get-drive-info.c',
 ]
 subdir('solidigm-telemetry')
 

plugins/solidigm/solidigm-get-drive-info.c

@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2023 Solidigm.
+ *
+ * Authors: [email protected]
+ */
+
+#include <errno.h>
+#include "nvme-print.h"
+#include "nvme-wrap.h"
+#include "common.h"
+
+int sldgm_get_drive_info(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+	_cleanup_nvme_dev_ struct nvme_dev *dev = NULL;
+	const char *desc = "Get drive HW information";
+	const char *FTL_unit_size_str = "FTL_unit_size";
+	char *output_format = "normal";
+	enum nvme_print_flags flags;
+	nvme_root_t r;
+	nvme_ctrl_t c;
+	nvme_ns_t n;
+	struct nvme_id_ns ns = { 0 };
+	__u8 flbaf_inUse;
+	__u16 lba_size;
+	__u16 ftl_unit_size;
+	int err;
+
+	OPT_ARGS(opts) = {
+		OPT_FMT("output-format", 'o', &output_format, "normal|json"),
+		OPT_END()
+	};
+
+	err = parse_and_open(&dev, argc, argv, desc, opts);
+	if (err)
+		return err;
+
+	err = validate_output_format(output_format, &flags);
+	if ((err < 0) || !(flags == NORMAL || flags == JSON)) {
+		nvme_show_error("Invalid output format");
+		return err;
+	}
+
+	r = nvme_scan(NULL);
+	c = nvme_scan_ctrl(r, dev->name);
+	n = c ? nvme_ctrl_first_ns(c) : nvme_scan_namespace(dev->name);
+	if (!n) {
+		nvme_show_error("solidigm-vs-drive-info: drive missing namespace");
+		return -EINVAL;
+	}
+
+	err = nvme_ns_identify(n, &ns);
+	if (err) {
+		nvme_show_error("identify namespace: %s", nvme_strerror(errno));
+		return err;
+	}
+
+	if (!(ns.nsfeat & 0x10)) {
+		nvme_show_error("solidigm-vs-drive-info: performance options not available");
+		return -EINVAL;
+	}
+
+	nvme_id_ns_flbas_to_lbaf_inuse(ns.flbas, &flbaf_inUse);
+	lba_size = 1 << ns.lbaf[flbaf_inUse].ds;
+	ftl_unit_size = (le16_to_cpu(ns.npwg) + 1) * lba_size / 1024;
+
+	if (flags == JSON) {
+		struct json_object *root = json_create_object();
+
+		json_object_add_value_int(root, FTL_unit_size_str, ftl_unit_size);
+		json_print_object(root, NULL);
+		printf("\n");
+		json_free_object(root);
+	} else {
+		printf("%s: %d\n", FTL_unit_size_str, ftl_unit_size);
+	}
+
+	return err;
+}

plugins/solidigm/solidigm-get-drive-info.h

@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2023 Solidigm.
+ *
+ * Author: [email protected]
+ */
+
+int sldgm_get_drive_info(int argc, char **argv, struct command *cmd, struct plugin *plugin);

plugins/solidigm/solidigm-nvme.c

@@ -19,6 +19,7 @@
 #include "solidigm-log-page-dir.h"
 #include "solidigm-market-log.h"
 #include "solidigm-temp-stats.h"
+#include "solidigm-get-drive-info.h"
 
 #include "plugins/ocp/ocp-clear-features.h"
 #include "plugins/ocp/ocp-smart-extended-log.h"
@@ -94,3 +95,8 @@ static int get_temp_stats_log(int argc, char **argv, struct command *cmd, struct
 {
 	return sldgm_get_temp_stats_log(argc, argv, cmd, plugin);
 }
+
+static int get_drive_info(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+	return sldgm_get_drive_info(argc, argv, cmd, plugin);
+}

plugins/solidigm/solidigm-nvme.h

@@ -13,7 +13,7 @@
 
 #include "cmd.h"
 
-#define SOLIDIGM_PLUGIN_VERSION "0.18"
+#define SOLIDIGM_PLUGIN_VERSION "0.19"
 
 PLUGIN(NAME("solidigm", "Solidigm vendor specific extensions", SOLIDIGM_PLUGIN_VERSION),
 	COMMAND_LIST(
@@ -30,6 +30,7 @@ PLUGIN(NAME("solidigm", "Solidigm vendor specific extensions", SOLIDIGM_PLUGIN_V
 		ENTRY("vs-fw-activate-history", "Get firmware activation history log (redirects to ocp plug-in)", fw_activation_history)
 		ENTRY("log-page-directory", "Retrieve log page directory", get_log_page_directory_log)
 		ENTRY("temp-stats", "Retrieve Temperature Statistics log", get_temp_stats_log)
+		ENTRY("vs-drive-info", "Retrieve drive information", get_drive_info)
 	)
 );