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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 19:41:32 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 19:41:32 +0000
commitf26f66d866ba1a9f3204e6fdfe2b07e67b5492ad (patch)
treec953c007cbe4f60a147ab62f97937d58abb2e9ca /plugins/solidigm/solidigm-telemetry.c
parentInitial commit. (diff)
downloadnvme-cli-f26f66d866ba1a9f3204e6fdfe2b07e67b5492ad.tar.xz
nvme-cli-f26f66d866ba1a9f3204e6fdfe2b07e67b5492ad.zip
Adding upstream version 2.8.upstream/2.8
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plugins/solidigm/solidigm-telemetry.c')
-rw-r--r--plugins/solidigm/solidigm-telemetry.c189
1 files changed, 189 insertions, 0 deletions
diff --git a/plugins/solidigm/solidigm-telemetry.c b/plugins/solidigm/solidigm-telemetry.c
new file mode 100644
index 0000000..2bebccc
--- /dev/null
+++ b/plugins/solidigm/solidigm-telemetry.c
@@ -0,0 +1,189 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2022 Solidigm.
+ *
+ * Author: leonardo.da.cunha@solidigm.com
+ */
+
+#include <fcntl.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "common.h"
+#include "nvme.h"
+#include "libnvme.h"
+#include "plugin.h"
+#include "nvme-print.h"
+#include "solidigm-telemetry.h"
+#include "solidigm-telemetry/telemetry-log.h"
+#include "solidigm-telemetry/cod.h"
+#include "solidigm-telemetry/header.h"
+#include "solidigm-telemetry/config.h"
+#include "solidigm-telemetry/data-area.h"
+#include "solidigm-util.h"
+
+static int read_file2buffer(char *file_name, char **buffer, size_t *length)
+{
+ FILE *fd = fopen(file_name, "rb");
+
+ if (!fd)
+ return errno;
+
+ fseek(fd, 0, SEEK_END);
+ size_t length_bytes = ftell(fd);
+
+ fseek(fd, 0, SEEK_SET);
+
+ *buffer = malloc(length_bytes);
+ if (!*buffer) {
+ fclose(fd);
+ return errno;
+ }
+ *length = fread(*buffer, 1, length_bytes, fd);
+ fclose(fd);
+ return 0;
+}
+
+struct config {
+ __u32 host_gen;
+ bool ctrl_init;
+ int data_area;
+ char *cfg_file;
+ bool is_input_file;
+};
+
+int solidigm_get_telemetry_log(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ const char *desc = "Parse Solidigm Telemetry log";
+ const char *hgen = "Controls when to generate new host initiated report. Default value '1' generates new host initiated report, value '0' causes retrieval of existing log.";
+ const char *cgen = "Gather report generated by the controller.";
+ const char *dgen = "Pick which telemetry data area to report. Default is 3 to fetch areas 1-3. Valid options are 1, 2, 3, 4.";
+ const char *cfile = "JSON configuration file";
+ const char *sfile = "data source <device> is binary file containing log dump instead of block or character device";
+ struct nvme_dev *dev;
+
+ struct telemetry_log tl = {
+ .root = json_create_object(),
+ .log = NULL,
+ };
+
+ struct config cfg = {
+ .host_gen = 1,
+ .ctrl_init = false,
+ .data_area = -1,
+ .cfg_file = NULL,
+ .is_input_file = false,
+ };
+
+ OPT_ARGS(opts) = {
+ OPT_UINT("host-generate", 'g', &cfg.host_gen, hgen),
+ OPT_FLAG("controller-init", 'c', &cfg.ctrl_init, cgen),
+ OPT_UINT("data-area", 'd', &cfg.data_area, dgen),
+ OPT_FILE("config-file", 'j', &cfg.cfg_file, cfile),
+ OPT_FLAG("source-file", 's', &cfg.is_input_file, sfile),
+ OPT_END()
+ };
+
+ int err = argconfig_parse(argc, argv, desc, opts);
+
+ if (err)
+ goto ret;
+
+ /* When not selected on the command line, get minimum data area required */
+ if (cfg.data_area == -1)
+ cfg.data_area = cfg.cfg_file ? 3 : 1;
+
+ if (cfg.is_input_file) {
+ if (optind >= argc) {
+ err = errno = EINVAL;
+ perror(argv[0]);
+ goto ret;
+ }
+ char *binary_file_name = argv[optind];
+
+ err = read_file2buffer(binary_file_name, (char **)&tl.log, &tl.log_size);
+ } else {
+ err = parse_and_open(&dev, argc, argv, desc, opts);
+ }
+ if (err)
+ goto ret;
+
+ if (cfg.host_gen > 1) {
+ SOLIDIGM_LOG_WARNING("Invalid host-generate value '%d'", cfg.host_gen);
+ err = EINVAL;
+ goto close_fd;
+ }
+
+ if (cfg.cfg_file) {
+ char *conf_str = NULL;
+ size_t length = 0;
+
+ err = read_file2buffer(cfg.cfg_file, &conf_str, &length);
+ if (err) {
+ SOLIDIGM_LOG_WARNING("Failed to open JSON configuration file %s: %s!",
+ cfg.cfg_file, strerror(err));
+ goto close_fd;
+ }
+ struct json_tokener *jstok = json_tokener_new();
+
+ tl.configuration = json_tokener_parse_ex(jstok, conf_str, length);
+ free(conf_str);
+ if (jstok->err != json_tokener_success) {
+ SOLIDIGM_LOG_WARNING("Parsing error on JSON configuration file %s: %s (at offset %d)",
+ cfg.cfg_file,
+ json_tokener_error_desc(jstok->err),
+ jstok->char_offset);
+ json_tokener_free(jstok);
+ err = EINVAL;
+ goto close_fd;
+ }
+ json_tokener_free(jstok);
+ }
+
+ if (!cfg.is_input_file) {
+ size_t max_data_tx;
+
+ err = nvme_get_telemetry_max(dev_fd(dev), NULL, &max_data_tx);
+ if (err < 0) {
+ SOLIDIGM_LOG_WARNING("identify_ctrl: %s",
+ nvme_strerror(errno));
+ goto close_fd;
+ } else if (err > 0) {
+ nvme_show_status(err);
+ SOLIDIGM_LOG_WARNING("Failed to acquire identify ctrl %d!", err);
+ goto close_fd;
+ }
+ if (max_data_tx > DRIVER_MAX_TX_256K)
+ max_data_tx = DRIVER_MAX_TX_256K;
+
+ err = nvme_get_telemetry_log(dev_fd(dev), cfg.host_gen, cfg.ctrl_init, true,
+ max_data_tx, cfg.data_area, &tl.log, &tl.log_size);
+ if (err < 0) {
+ SOLIDIGM_LOG_WARNING("get-telemetry-log: %s",
+ nvme_strerror(errno));
+ goto close_fd;
+ } else if (err > 0) {
+ nvme_show_status(err);
+ SOLIDIGM_LOG_WARNING("Failed to acquire telemetry log %d!", err);
+ goto close_fd;
+ }
+ }
+ solidigm_telemetry_log_data_areas_parse(&tl, cfg.data_area);
+
+ json_print_object(tl.root, NULL);
+ json_free_object(tl.root);
+ printf("\n");
+
+close_fd:
+ if (!cfg.is_input_file) {
+ /* Redundant close() to make static code analysis happy */
+ close(dev->direct.fd);
+ dev_close(dev);
+ }
+ret:
+ json_free_object(tl.configuration);
+ free(tl.log);
+ return err;
+}