nvme: add reachability-associations-log command

Since added the NVMe 2.1 log page.

Signed-off-by: Tokunori Ikegami <ikegami.t@gmail.com>

Author: ikegami-t

nvme-builtin.h

@@ -63,6 +63,7 @@ COMMAND_LIST(
 	ENTRY("changed-alloc-ns-list-log", "Retrieve Changed Allocated Namespace List, show it", get_changed_alloc_ns_list_log)
 	ENTRY("dispersed-ns-participating-nss-log", "Retrieve Dispersed Namespace Participating NVM Subsystems Log, show it", get_dispersed_ns_participating_nss_log)
 	ENTRY("reachability-groups-log", "Retrieve Reachability Groups Log, show it", get_reachability_groups_log)
+	ENTRY("reachability-associations-log", "Retrieve Reachability Associations Log, show it", get_reachability_associations_log)
 	ENTRY("set-feature", "Set a feature and show the resulting value", set_feature)
 	ENTRY("set-property", "Set a property and show the resulting value", set_property)
 	ENTRY("get-property", "Get a property and show the resulting value", get_property)

nvme-print-binary.c

@@ -326,6 +326,11 @@ static void binary_reachability_groups_log(struct nvme_reachability_groups_log *
 	d_raw((unsigned char *)log, sizeof(*log));
 }
 
+static void binary_reachability_associations_log(struct nvme_reachability_associations_log *log)
+{
+	d_raw((unsigned char *)log, sizeof(*log));
+}
+
 static struct print_ops binary_print_ops = {
 	/* libnvme types.h print functions */
 	.ana_log			= binary_ana_log,
@@ -396,6 +401,7 @@ static struct print_ops binary_print_ops = {
 	.rotational_media_info_log	= binary_rotational_media_info_log,
 	.dispersed_ns_psub_log		= binary_dispersed_ns_psub_log,
 	.reachability_groups_log	= binary_reachability_groups_log,
+	.reachability_associations_log	= binary_reachability_associations_log,
 
 	/* libnvme tree print functions */
 	.list_item			= NULL,

nvme-print-json.c

@@ -4701,6 +4701,31 @@ static void json_reachability_groups_log(struct nvme_reachability_groups_log *lo
 	json_print(r);
 }
 
+static void json_reachability_associations_log(struct nvme_reachability_associations_log *log)
+{
+	struct json_object *r = json_create_object();
+	__u16 i;
+	__u32 j;
+	char json_str[STR_LEN];
+	struct json_object *rad;
+
+	obj_add_uint64(r, "chngc", le64_to_cpu(log->chngc));
+	obj_add_uint(r, "nrad", le16_to_cpu(log->nrad));
+
+	for (i = 0; i < le16_to_cpu(log->nrad); i++) {
+		snprintf(json_str, sizeof(json_str), "rasid: %u", le32_to_cpu(log->rad[i].rasid));
+		rad = json_create_object();
+		obj_add_uint(rad, "nrid", le32_to_cpu(log->rad[i].nrid));
+		obj_add_uint64(rad, "chngc", le64_to_cpu(log->rad[i].chngc));
+		obj_add_uint(rad, "rac", log->rad[i].rac);
+		for (j = 0; j < le32_to_cpu(log->rad[i].nrid); j++)
+			obj_add_uint(rad, "rgid", le32_to_cpu(log->rad[i].ngid[j]));
+		obj_add_obj(r, json_str, rad);
+	}
+
+	json_print(r);
+}
+
 static struct print_ops json_print_ops = {
 	/* libnvme types.h print functions */
 	.ana_log			= json_ana_log,
@@ -4772,6 +4797,7 @@ static struct print_ops json_print_ops = {
 	.rotational_media_info_log	= json_rotational_media_info_log,
 	.dispersed_ns_psub_log		= json_dispersed_ns_psub_log,
 	.reachability_groups_log	= json_reachability_groups_log,
+	.reachability_associations_log	= json_reachability_associations_log,
 
 	/* libnvme tree print functions */
 	.list_item			= json_list_item,

nvme-print-stdout.c

@@ -5655,6 +5655,24 @@ static void stdout_reachability_groups_log(struct nvme_reachability_groups_log *
 	}
 }
 
+static void stdout_reachability_associations_log(struct nvme_reachability_associations_log *log)
+{
+	__u16 i;
+	__u32 j;
+
+	printf("chngc: %"PRIu64"\n", le64_to_cpu(log->chngc));
+	printf("nrad: %u\n", le16_to_cpu(log->nrad));
+
+	for (i = 0; i < le16_to_cpu(log->nrad); i++) {
+		printf("rasid: %u\n", le32_to_cpu(log->rad[i].rasid));
+		printf("nrid: %u\n", le32_to_cpu(log->rad[i].nrid));
+		printf("chngc: %"PRIu64"\n", le64_to_cpu(log->rad[i].chngc));
+		printf("rac: %u\n", log->rad[i].rac);
+		for (j = 0; j < le32_to_cpu(log->rad[i].nrid); j++)
+			printf("rgid%u: %u\n", j, le32_to_cpu(log->rad[i].ngid[j]));
+	}
+}
+
 static struct print_ops stdout_print_ops = {
 	/* libnvme types.h print functions */
 	.ana_log			= stdout_ana_log,
@@ -5726,6 +5744,7 @@ static struct print_ops stdout_print_ops = {
 	.rotational_media_info_log	= stdout_rotational_media_info_log,
 	.dispersed_ns_psub_log		= stdout_dispersed_ns_psub_log,
 	.reachability_groups_log	= stdout_reachability_groups_log,
+	.reachability_associations_log	= stdout_reachability_associations_log,
 
 	/* libnvme tree print functions */
 	.list_item			= stdout_list_item,

nvme-print.c

@@ -1514,3 +1514,9 @@ void nvme_show_reachability_groups_log(struct nvme_reachability_groups_log *log,
 {
 	nvme_print(reachability_groups_log, flags, log);
 }
+
+void nvme_show_reachability_associations_log(struct nvme_reachability_associations_log *log,
+					     nvme_print_flags_t flags)
+{
+	nvme_print(reachability_associations_log, flags, log);
+}

nvme-print.h

@@ -92,6 +92,7 @@ struct print_ops {
 	void (*rotational_media_info_log)(struct nvme_rotational_media_info_log *info);
 	void (*dispersed_ns_psub_log)(struct nvme_dispersed_ns_participating_nss_log *log);
 	void (*reachability_groups_log)(struct nvme_reachability_groups_log *log);
+	void (*reachability_associations_log)(struct nvme_reachability_associations_log *log);
 
 	/* libnvme tree print functions */
 	void (*list_item)(nvme_ns_t n);
@@ -341,4 +342,6 @@ void nvme_show_dispersed_ns_psub_log(struct nvme_dispersed_ns_participating_nss_
 				     nvme_print_flags_t flags);
 void nvme_show_reachability_groups_log(struct nvme_reachability_groups_log *log,
 				       nvme_print_flags_t flags);
+void nvme_show_reachability_associations_log(struct nvme_reachability_associations_log *log,
+					     nvme_print_flags_t flags);
 #endif /* NVME_PRINT_H */

nvme-wrap.c

@@ -463,3 +463,9 @@ int nvme_cli_get_log_reachability_groups(struct nvme_dev *dev, bool rgo, bool ra
 {
 	return do_admin_op(get_log_reachability_groups, dev, len, rgo, rae, log);
 }
+
+int nvme_cli_get_log_reachability_associations(struct nvme_dev *dev, bool rao, bool rae, __u32 len,
+					       struct nvme_reachability_associations_log *log)
+{
+	return do_admin_op(get_log_reachability_associations, dev, len, rao, rae, log);
+}

nvme-wrap.h

@@ -159,4 +159,7 @@ int nvme_cli_get_log_dispersed_ns_participating_nss(struct nvme_dev *dev, __u32
 
 int nvme_cli_get_log_reachability_groups(struct nvme_dev *dev, bool rgo, bool rae, __u32 len,
 					 struct nvme_reachability_groups_log *log);
+
+int nvme_cli_get_log_reachability_associations(struct nvme_dev *dev, bool rgo, bool rae, __u32 len,
+					       struct nvme_reachability_associations_log *log);
 #endif /* _NVME_WRAP_H */

nvme.c

@@ -10322,6 +10322,118 @@ static int get_reachability_groups_log(int argc, char **argv, struct command *cm
 	return err;
 }
 
+static int get_reachability_association_desc(struct nvme_dev *dev, struct nvme_get_log_args *args,
+					     __u64 offset,
+					     struct nvme_reachability_associations_log **logp)
+{
+	int err;
+	struct nvme_reachability_associations_log *log = *logp;
+	__u16 i;
+	__u32 len;
+
+	for (i = 0; i < le16_to_cpu(log->nrad); i++) {
+		len = sizeof(*log->rad);
+		err = get_log_offset(dev, args, &offset, len, (void **)&log);
+		if (err)
+			goto err_free;
+		len = le32_to_cpu(log->rad[i].nrid) * sizeof(*log->rad[i].ngid);
+		err = get_log_offset(dev, args, &offset, len, (void **)&log);
+		if (err)
+			goto err_free;
+	}
+
+	*logp = log;
+	return 0;
+
+err_free:
+	free(log);
+	*logp = NULL;
+	return err;
+}
+
+static int get_reachability_associations(struct nvme_dev *dev, bool rao, bool rae,
+					 struct nvme_reachability_associations_log **logp)
+{
+	int err;
+	struct nvme_reachability_associations_log *log;
+	__u64 log_len = sizeof(*log);
+	struct nvme_get_log_args args = {
+		.args_size = sizeof(args),
+		.fd = dev_fd(dev),
+		.timeout = NVME_DEFAULT_IOCTL_TIMEOUT,
+		.lid = NVME_LOG_LID_REACHABILITY_ASSOCIATIONS,
+		.nsid = NVME_NSID_ALL,
+		.lsp = rao,
+		.rae = rae,
+	};
+
+	log = nvme_alloc(log_len);
+	if (!log)
+		return -ENOMEM;
+
+	err = nvme_cli_get_log_reachability_associations(dev, rao, rae, log_len, log);
+	if (err)
+		goto err_free;
+
+	err = get_reachability_association_desc(dev, &args, log_len, &log);
+	if (err)
+		goto err_free;
+
+	*logp = log;
+	return 0;
+
+err_free:
+	free(log);
+	return err;
+}
+
+static int get_reachability_associations_log(int argc, char **argv, struct command *cmd,
+					     struct plugin *plugin)
+{
+	const char *desc = "Retrieve Reachability Associations Log, show it";
+	const char *rao = "Return Associations Only";
+	nvme_print_flags_t flags;
+	int err;
+
+	_cleanup_free_ struct nvme_reachability_associations_log *log = NULL;
+
+	_cleanup_nvme_dev_ struct nvme_dev *dev = NULL;
+
+	struct config {
+		bool rao;
+		bool rae;
+	};
+
+	struct config cfg = {
+		.rao = false,
+		.rae = false,
+	};
+
+	NVME_ARGS(opts,
+		  OPT_FLAG("associations-only", 'a', &cfg.rao, rao),
+		  OPT_FLAG("rae", 'r', &cfg.rae, rae));
+
+	err = parse_and_open(&dev, argc, argv, desc, opts);
+	if (err)
+		return err;
+
+	err = validate_output_format(nvme_cfg.output_format, &flags);
+	if (err < 0) {
+		nvme_show_error("Invalid output format");
+		return err;
+	}
+
+	err = get_reachability_associations(dev, cfg.rao, cfg.rae, &log);
+	if (!err)
+		nvme_show_reachability_associations_log(log, flags);
+	else if (err > 0)
+		nvme_show_status(err);
+	else
+		nvme_show_perror("reachability associations log");
+
+	return err;
+}
+
 void register_extension(struct plugin *plugin)
 {
 	plugin->parent = &nvme;