[mirror_iproute2.git] / rdma / res.c

// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
 * res.c	RDMA tool
 * Authors:     Leon Romanovsky <leonro@mellanox.com>
 */

#include "res.h"
#include <inttypes.h>

static int res_help(struct rd *rd)
{
	pr_out("Usage: %s resource\n", rd->filename);
	pr_out("          resource show [DEV]\n");
	pr_out("          resource show [qp|cm_id|pd|mr|cq]\n");
	pr_out("          resource show qp link [DEV/PORT]\n");
	pr_out("          resource show qp link [DEV/PORT] [FILTER-NAME FILTER-VALUE]\n");
	pr_out("          resource show cm_id link [DEV/PORT]\n");
	pr_out("          resource show cm_id link [DEV/PORT] [FILTER-NAME FILTER-VALUE]\n");
	pr_out("          resource show cq link [DEV/PORT]\n");
	pr_out("          resource show cq link [DEV/PORT] [FILTER-NAME FILTER-VALUE]\n");
	pr_out("          resource show pd dev [DEV]\n");
	pr_out("          resource show pd dev [DEV] [FILTER-NAME FILTER-VALUE]\n");
	pr_out("          resource show mr dev [DEV]\n");
	pr_out("          resource show mr dev [DEV] [FILTER-NAME FILTER-VALUE]\n");
	return 0;
}

static int res_print_summary(struct rd *rd, struct nlattr **tb)
{
	struct nlattr *nla_table = tb[RDMA_NLDEV_ATTR_RES_SUMMARY];
	struct nlattr *nla_entry;
	const char *name;
	uint64_t curr;
	int err;

	mnl_attr_for_each_nested(nla_entry, nla_table) {
		struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};

		err = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
		if (err != MNL_CB_OK)
			return -EINVAL;

		if (!nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_NAME] ||
		    !nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR]) {
			return -EINVAL;
		}

		name = mnl_attr_get_str(nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_NAME]);
		curr = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR]);
		res_print_uint(
			rd, name, curr,
			nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR]);
	}
	return 0;
}

static int res_no_args_idx_parse_cb(const struct nlmsghdr *nlh, void *data)
{
	return MNL_CB_OK;
}

static int res_no_args_parse_cb(const struct nlmsghdr *nlh, void *data)
{
	struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
	struct rd *rd = data;
	const char *name;
	uint32_t idx;

	mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
	if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] ||
	    !tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
	    !tb[RDMA_NLDEV_ATTR_RES_SUMMARY])
		return MNL_CB_ERROR;

	idx =  mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
	name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
	if (rd->json_output) {
		jsonw_uint_field(rd->jw, "ifindex", idx);
		jsonw_string_field(rd->jw, "ifname", name);
	} else {
		pr_out("%u: %s: ", idx, name);
	}

	res_print_summary(rd, tb);

	if (!rd->json_output)
		pr_out("\n");
	return MNL_CB_OK;
}

int _res_send_idx_msg(struct rd *rd, uint32_t command, mnl_cb_t callback,
		      uint32_t idx, uint32_t id)
{
	uint32_t flags = NLM_F_REQUEST | NLM_F_ACK;
	uint32_t seq;
	int ret;

	rd_prepare_msg(rd, command, &seq, flags);
	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
	if (rd->port_idx)
		mnl_attr_put_u32(rd->nlh,
				 RDMA_NLDEV_ATTR_PORT_INDEX, rd->port_idx);

	mnl_attr_put_u32(rd->nlh, id, idx);

	ret = rd_send_msg(rd);
	if (ret)
		return ret;

	if (rd->json_output)
		jsonw_start_object(rd->jw);
	ret = rd_recv_msg(rd, callback, rd, seq);
	if (rd->json_output)
		jsonw_end_object(rd->jw);
	return ret;
}

int _res_send_msg(struct rd *rd, uint32_t command, mnl_cb_t callback)
{
	uint32_t flags = NLM_F_REQUEST | NLM_F_ACK;
	uint32_t seq;
	int ret;

	if (command != RDMA_NLDEV_CMD_RES_GET)
		flags |= NLM_F_DUMP;

	rd_prepare_msg(rd, command, &seq, flags);
	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
	if (rd->port_idx)
		mnl_attr_put_u32(rd->nlh,
				 RDMA_NLDEV_ATTR_PORT_INDEX, rd->port_idx);

	ret = rd_send_msg(rd);
	if (ret)
		return ret;

	if (rd->json_output)
		jsonw_start_object(rd->jw);
	ret = rd_recv_msg(rd, callback, rd, seq);
	if (rd->json_output)
		jsonw_end_object(rd->jw);
	return ret;
}

const char *qp_types_to_str(uint8_t idx)
{
	static const char * const qp_types_str[] = { "SMI", "GSI", "RC",
						     "UC", "UD", "RAW_IPV6",
						     "RAW_ETHERTYPE",
						     "UNKNOWN", "RAW_PACKET",
						     "XRC_INI", "XRC_TGT" };

	if (idx < ARRAY_SIZE(qp_types_str))
		return qp_types_str[idx];
	return "UNKNOWN";
}

void print_comm(struct rd *rd, const char *str, struct nlattr **nla_line)
{
	char tmp[18];

	if (rd->json_output) {
		/* Don't beatify output in JSON format */
		jsonw_string_field(rd->jw, "comm", str);
		return;
	}

	if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
		snprintf(tmp, sizeof(tmp), "%s", str);
	else
		snprintf(tmp, sizeof(tmp), "[%s]", str);

	pr_out("comm %s ", tmp);
}

void print_dev(struct rd *rd, uint32_t idx, const char *name)
{
	if (rd->json_output) {
		jsonw_uint_field(rd->jw, "ifindex", idx);
		jsonw_string_field(rd->jw, "ifname", name);
	} else {
		pr_out("dev %s ", name);
	}
}

void print_link(struct rd *rd, uint32_t idx, const char *name, uint32_t port,
		struct nlattr **nla_line)
{
	if (rd->json_output) {
		jsonw_uint_field(rd->jw, "ifindex", idx);

		if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
			jsonw_uint_field(rd->jw, "port", port);

		jsonw_string_field(rd->jw, "ifname", name);
	} else {
		if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
			pr_out("link %s/%u ", name, port);
		else
			pr_out("link %s/- ", name);
	}
}

char *get_task_name(uint32_t pid)
{
	char *comm;
	FILE *f;

	if (asprintf(&comm, "/proc/%d/comm", pid) < 0)
		return NULL;

	f = fopen(comm, "r");
	free(comm);
	if (!f)
		return NULL;

	if (fscanf(f, "%ms\n", &comm) != 1)
		comm = NULL;

	fclose(f);

	return comm;
}

void print_key(struct rd *rd, const char *name, uint64_t val,
	       struct nlattr *nlattr)
{
	if (!nlattr)
		return;

	if (rd->json_output)
		jsonw_xint_field(rd->jw, name, val);
	else
		pr_out("%s 0x%" PRIx64 " ", name, val);
}

void res_print_uint(struct rd *rd, const char *name, uint64_t val,
		    struct nlattr *nlattr)
{
	if (!nlattr)
		return;

	if (rd->json_output)
		jsonw_u64_field(rd->jw, name, val);
	else
		pr_out("%s %" PRIu64 " ", name, val);
}

RES_FUNC(res_no_args,	RDMA_NLDEV_CMD_RES_GET,	NULL, true, 0);

static int res_show(struct rd *rd)
{
	const struct rd_cmd cmds[] = {
		{ NULL,		res_no_args	},
		{ "qp",		res_qp		},
		{ "cm_id",	res_cm_id	},
		{ "cq",		res_cq		},
		{ "mr",		res_mr		},
		{ "pd",		res_pd		},
		{ 0 }
	};

	/*
	 * Special case to support "rdma res show DEV_NAME"
	 */
	if (rd_argc(rd) == 1 && dev_map_lookup(rd, false))
		return rd_exec_dev(rd, _res_no_args);

	return rd_exec_cmd(rd, cmds, "parameter");
}

int cmd_res(struct rd *rd)
{
	const struct rd_cmd cmds[] = {
		{ NULL,		res_show },
		{ "show",	res_show },
		{ "list",	res_show },
		{ "help",	res_help },
		{ 0 }
	};

	return rd_exec_cmd(rd, cmds, "resource command");
}
Commit	Line	Data
835d8321	1	// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
923aa825 LR	2	/*
923aa825 LR	3	* res.c RDMA tool
923aa825 LR	4	* Authors: Leon Romanovsky <leonro@mellanox.com>
	5	*/
	6
cc613127	7	#include "res.h"
923aa825 LR	8	#include <inttypes.h>
	9
	10	static int res_help(struct rd *rd)
	11	{
	12	pr_out("Usage: %s resource\n", rd->filename);
	13	pr_out(" resource show [DEV]\n");
4ee770ee	14	pr_out(" resource show [qp\|cm_id\|pd\|mr\|cq]\n");
8ecac46a LR	15	pr_out(" resource show qp link [DEV/PORT]\n");
8ecac46a LR	16	pr_out(" resource show qp link [DEV/PORT] [FILTER-NAME FILTER-VALUE]\n");
9a362cc7 SW	17	pr_out(" resource show cm_id link [DEV/PORT]\n");
9a362cc7 SW	18	pr_out(" resource show cm_id link [DEV/PORT] [FILTER-NAME FILTER-VALUE]\n");
b0b8e32c SW	19	pr_out(" resource show cq link [DEV/PORT]\n");
b0b8e32c SW	20	pr_out(" resource show cq link [DEV/PORT] [FILTER-NAME FILTER-VALUE]\n");
4ee770ee LR	21	pr_out(" resource show pd dev [DEV]\n");
	22	pr_out(" resource show pd dev [DEV] [FILTER-NAME FILTER-VALUE]\n");
	23	pr_out(" resource show mr dev [DEV]\n");
	24	pr_out(" resource show mr dev [DEV] [FILTER-NAME FILTER-VALUE]\n");
923aa825 LR	25	return 0;
	26	}
	27
	28	static int res_print_summary(struct rd rd, struct nlattr *tb)
	29	{
	30	struct nlattr *nla_table = tb[RDMA_NLDEV_ATTR_RES_SUMMARY];
	31	struct nlattr *nla_entry;
	32	const char *name;
	33	uint64_t curr;
	34	int err;
	35
	36	mnl_attr_for_each_nested(nla_entry, nla_table) {
	37	struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
923aa825 LR	38
	39	err = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
	40	if (err != MNL_CB_OK)
	41	return -EINVAL;
	42
	43	if (!nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_NAME] \|\|
	44	!nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR]) {
	45	return -EINVAL;
	46	}
	47
	48	name = mnl_attr_get_str(nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_NAME]);
	49	curr = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR]);
127ff956 LR	50	res_print_uint(
	51	rd, name, curr,
	52	nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR]);
923aa825 LR	53	}
	54	return 0;
	55	}
	56
5a823593 LR	57	static int res_no_args_idx_parse_cb(const struct nlmsghdr nlh, void data)
	58	{
	59	return MNL_CB_OK;
	60	}
	61
923aa825 LR	62	static int res_no_args_parse_cb(const struct nlmsghdr nlh, void data)
	63	{
	64	struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
	65	struct rd *rd = data;
	66	const char *name;
	67	uint32_t idx;
	68
	69	mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
	70	if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] \|\|
	71	!tb[RDMA_NLDEV_ATTR_DEV_NAME] \|\|
	72	!tb[RDMA_NLDEV_ATTR_RES_SUMMARY])
	73	return MNL_CB_ERROR;
	74
	75	idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
	76	name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
	77	if (rd->json_output) {
	78	jsonw_uint_field(rd->jw, "ifindex", idx);
	79	jsonw_string_field(rd->jw, "ifname", name);
	80	} else {
	81	pr_out("%u: %s: ", idx, name);
	82	}
	83
	84	res_print_summary(rd, tb);
	85
	86	if (!rd->json_output)
	87	pr_out("\n");
	88	return MNL_CB_OK;
	89	}
	90
5a823593 LR	91	int _res_send_idx_msg(struct rd *rd, uint32_t command, mnl_cb_t callback,
	92	uint32_t idx, uint32_t id)
	93	{
	94	uint32_t flags = NLM_F_REQUEST \| NLM_F_ACK;
	95	uint32_t seq;
	96	int ret;
	97
	98	rd_prepare_msg(rd, command, &seq, flags);
	99	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
	100	if (rd->port_idx)
	101	mnl_attr_put_u32(rd->nlh,
	102	RDMA_NLDEV_ATTR_PORT_INDEX, rd->port_idx);
	103
	104	mnl_attr_put_u32(rd->nlh, id, idx);
	105
	106	ret = rd_send_msg(rd);
	107	if (ret)
	108	return ret;
	109
	110	if (rd->json_output)
	111	jsonw_start_object(rd->jw);
	112	ret = rd_recv_msg(rd, callback, rd, seq);
	113	if (rd->json_output)
	114	jsonw_end_object(rd->jw);
	115	return ret;
	116	}
	117
cc613127	118	int _res_send_msg(struct rd *rd, uint32_t command, mnl_cb_t callback)
923aa825 LR	119	{
	120	uint32_t flags = NLM_F_REQUEST \| NLM_F_ACK;
	121	uint32_t seq;
	122	int ret;
	123
	124	if (command != RDMA_NLDEV_CMD_RES_GET)
	125	flags \|= NLM_F_DUMP;
	126
	127	rd_prepare_msg(rd, command, &seq, flags);
	128	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
	129	if (rd->port_idx)
	130	mnl_attr_put_u32(rd->nlh,
	131	RDMA_NLDEV_ATTR_PORT_INDEX, rd->port_idx);
	132
	133	ret = rd_send_msg(rd);
	134	if (ret)
	135	return ret;
	136
	137	if (rd->json_output)
	138	jsonw_start_object(rd->jw);
	139	ret = rd_recv_msg(rd, callback, rd, seq);
	140	if (rd->json_output)
	141	jsonw_end_object(rd->jw);
	142	return ret;
	143	}
	144
438fac3a	145	const char *qp_types_to_str(uint8_t idx)
8ecac46a LR	146	{
	147	static const char * const qp_types_str[] = { "SMI", "GSI", "RC",
	148	"UC", "UD", "RAW_IPV6",
	149	"RAW_ETHERTYPE",
	150	"UNKNOWN", "RAW_PACKET",
	151	"XRC_INI", "XRC_TGT" };
	152
	153	if (idx < ARRAY_SIZE(qp_types_str))
	154	return qp_types_str[idx];
	155	return "UNKNOWN";
	156	}
	157
cc613127	158	void print_comm(struct rd rd, const char str, struct nlattr **nla_line)
8ecac46a LR	159	{
	160	char tmp[18];
	161
	162	if (rd->json_output) {
	163	/* Don't beatify output in JSON format */
	164	jsonw_string_field(rd->jw, "comm", str);
	165	return;
	166	}
	167
	168	if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
	169	snprintf(tmp, sizeof(tmp), "%s", str);
	170	else
	171	snprintf(tmp, sizeof(tmp), "[%s]", str);
	172
	173	pr_out("comm %s ", tmp);
	174	}
	175
cc613127	176	void print_dev(struct rd rd, uint32_t idx, const char name)
b0b8e32c SW	177	{
	178	if (rd->json_output) {
	179	jsonw_uint_field(rd->jw, "ifindex", idx);
	180	jsonw_string_field(rd->jw, "ifname", name);
	181	} else {
	182	pr_out("dev %s ", name);
	183	}
	184	}
	185
438fac3a LR	186	void print_link(struct rd rd, uint32_t idx, const char name, uint32_t port,
438fac3a LR	187	struct nlattr **nla_line)
8ecac46a LR	188	{
	189	if (rd->json_output) {
	190	jsonw_uint_field(rd->jw, "ifindex", idx);
	191
	192	if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
	193	jsonw_uint_field(rd->jw, "port", port);
	194
	195	jsonw_string_field(rd->jw, "ifname", name);
	196	} else {
	197	if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
	198	pr_out("link %s/%u ", name, port);
	199	else
	200	pr_out("link %s/- ", name);
	201	}
	202	}
	203
cc613127	204	char *get_task_name(uint32_t pid)
8ecac46a LR	205	{
	206	char *comm;
	207	FILE *f;
	208
	209	if (asprintf(&comm, "/proc/%d/comm", pid) < 0)
	210	return NULL;
	211
	212	f = fopen(comm, "r");
	213	free(comm);
	214	if (!f)
	215	return NULL;
	216
	217	if (fscanf(f, "%ms\n", &comm) != 1)
	218	comm = NULL;
	219
	220	fclose(f);
	221
	222	return comm;
	223	}
	224
127ff956 LR	225	void print_key(struct rd rd, const char name, uint64_t val,
127ff956 LR	226	struct nlattr *nlattr)
96f59e7f	227	{
127ff956 LR	228	if (!nlattr)
	229	return;
	230
96f59e7f LR	231	if (rd->json_output)
	232	jsonw_xint_field(rd->jw, name, val);
	233	else
	234	pr_out("%s 0x%" PRIx64 " ", name, val);
	235	}
	236
127ff956 LR	237	void res_print_uint(struct rd rd, const char name, uint64_t val,
127ff956 LR	238	struct nlattr *nlattr)
96f59e7f	239	{
127ff956 LR	240	if (!nlattr)
	241	return;
	242
96f59e7f	243	if (rd->json_output)
05846c9c	244	jsonw_u64_field(rd->jw, name, val);
96f59e7f LR	245	else
	246	pr_out("%s %" PRIu64 " ", name, val);
	247	}
	248
5a823593	249	RES_FUNC(res_no_args, RDMA_NLDEV_CMD_RES_GET, NULL, true, 0);
923aa825 LR	250
	251	static int res_show(struct rd *rd)
	252	{
	253	const struct rd_cmd cmds[] = {
	254	{ NULL, res_no_args },
8ecac46a	255	{ "qp", res_qp },
9a362cc7	256	{ "cm_id", res_cm_id },
b0b8e32c	257	{ "cq", res_cq },
8958a15c	258	{ "mr", res_mr },
4060e4c0	259	{ "pd", res_pd },
923aa825 LR	260	{ 0 }
	261	};
	262
	263	/*
	264	* Special case to support "rdma res show DEV_NAME"
	265	*/
	266	if (rd_argc(rd) == 1 && dev_map_lookup(rd, false))
	267	return rd_exec_dev(rd, _res_no_args);
	268
	269	return rd_exec_cmd(rd, cmds, "parameter");
	270	}
	271
	272	int cmd_res(struct rd *rd)
	273	{
	274	const struct rd_cmd cmds[] = {
	275	{ NULL, res_show },
	276	{ "show", res_show },
	277	{ "list", res_show },
	278	{ "help", res_help },
	279	{ 0 }
	280	};
	281
	282	return rd_exec_cmd(rd, cmds, "resource command");
	283	}