[mirror_iproute2.git] / rdma / res-cq.c

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

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

static const char *poll_ctx_to_str(uint8_t idx)
{
	static const char * const cm_id_states_str[] = {
		"DIRECT", "SOFTIRQ", "WORKQUEUE", "UNBOUND_WORKQUEUE"};

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

static void print_poll_ctx(struct rd *rd, uint8_t poll_ctx)
{
	if (rd->json_output) {
		jsonw_string_field(rd->jw, "poll-ctx",
				   poll_ctx_to_str(poll_ctx));
		return;
	}
	pr_out("poll-ctx %s ", poll_ctx_to_str(poll_ctx));
}

int res_cq_parse_cb(const struct nlmsghdr *nlh, void *data)
{
	struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
	struct nlattr *nla_table, *nla_entry;
	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_CQ])
		return MNL_CB_ERROR;

	name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
	idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
	nla_table = tb[RDMA_NLDEV_ATTR_RES_CQ];

	mnl_attr_for_each_nested(nla_entry, nla_table) {
		struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
		char *comm = NULL;
		uint32_t pid = 0;
		uint8_t poll_ctx = 0;
		uint32_t ctxn = 0;
		uint32_t cqn = 0;
		uint64_t users;
		uint32_t cqe;
		int err;

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

		if (!nla_line[RDMA_NLDEV_ATTR_RES_CQE] ||
		    !nla_line[RDMA_NLDEV_ATTR_RES_USECNT] ||
		    (!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
		     !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
			return MNL_CB_ERROR;
		}

		cqe = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CQE]);

		users = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_USECNT]);
		if (rd_check_is_filtered(rd, "users", users))
			continue;

		if (nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]) {
			poll_ctx = mnl_attr_get_u8(
				nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]);
			if (rd_check_is_string_filtered(
				    rd, "poll-ctx", poll_ctx_to_str(poll_ctx)))
				continue;
		}

		if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
			pid = mnl_attr_get_u32(
				nla_line[RDMA_NLDEV_ATTR_RES_PID]);
			comm = get_task_name(pid);
		}

		if (rd_check_is_filtered(rd, "pid", pid)) {
			free(comm);
			continue;
		}

		if (nla_line[RDMA_NLDEV_ATTR_RES_CQN])
			cqn = mnl_attr_get_u32(
				nla_line[RDMA_NLDEV_ATTR_RES_CQN]);
		if (rd_check_is_filtered(rd, "cqn", cqn))
			continue;

		if (nla_line[RDMA_NLDEV_ATTR_RES_CTXN])
			ctxn = mnl_attr_get_u32(
				nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
		if (rd_check_is_filtered(rd, "ctxn", ctxn))
			continue;

		if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
			/* discard const from mnl_attr_get_str */
			comm = (char *)mnl_attr_get_str(
				nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]);

		if (rd->json_output)
			jsonw_start_array(rd->jw);

		print_dev(rd, idx, name);
		res_print_uint(rd, "cqe", cqe);
		res_print_uint(rd, "users", users);
		if (nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX])
			print_poll_ctx(rd, poll_ctx);
		res_print_uint(rd, "pid", pid);
		print_comm(rd, comm, nla_line);

		if (nla_line[RDMA_NLDEV_ATTR_RES_CQN])
			res_print_uint(rd, "cqn", cqn);
		if (nla_line[RDMA_NLDEV_ATTR_RES_CTXN])
			res_print_uint(rd, "ctxn", ctxn);

		if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
			free(comm);

		print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
		newline(rd);
	}
	return MNL_CB_OK;
}
Commit	Line	Data
fcdd2e0c LR	1	// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
	2	/*
	3	* res-cq.c RDMA tool
	4	* Authors: Leon Romanovsky <leonro@mellanox.com>
	5	*/
	6
	7	#include "res.h"
	8	#include <inttypes.h>
	9
fcdd2e0c LR	10	static const char *poll_ctx_to_str(uint8_t idx)
	11	{
	12	static const char * const cm_id_states_str[] = {
	13	"DIRECT", "SOFTIRQ", "WORKQUEUE", "UNBOUND_WORKQUEUE"};
	14
	15	if (idx < ARRAY_SIZE(cm_id_states_str))
	16	return cm_id_states_str[idx];
	17	return "UNKNOWN";
	18	}
	19
	20	static void print_poll_ctx(struct rd *rd, uint8_t poll_ctx)
	21	{
	22	if (rd->json_output) {
	23	jsonw_string_field(rd->jw, "poll-ctx",
	24	poll_ctx_to_str(poll_ctx));
	25	return;
	26	}
	27	pr_out("poll-ctx %s ", poll_ctx_to_str(poll_ctx));
	28	}
	29
	30	int res_cq_parse_cb(const struct nlmsghdr nlh, void data)
	31	{
	32	struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
	33	struct nlattr nla_table, nla_entry;
	34	struct rd *rd = data;
	35	const char *name;
	36	uint32_t idx;
	37
	38	mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
	39	if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] \|\| !tb[RDMA_NLDEV_ATTR_DEV_NAME] \|\|
	40	!tb[RDMA_NLDEV_ATTR_RES_CQ])
	41	return MNL_CB_ERROR;
	42
	43	name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
	44	idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
	45	nla_table = tb[RDMA_NLDEV_ATTR_RES_CQ];
	46
	47	mnl_attr_for_each_nested(nla_entry, nla_table) {
	48	struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
	49	char *comm = NULL;
	50	uint32_t pid = 0;
	51	uint8_t poll_ctx = 0;
	52	uint32_t ctxn = 0;
	53	uint32_t cqn = 0;
	54	uint64_t users;
	55	uint32_t cqe;
	56	int err;
	57
	58	err = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
	59	if (err != MNL_CB_OK)
	60	return MNL_CB_ERROR;
	61
	62	if (!nla_line[RDMA_NLDEV_ATTR_RES_CQE] \|\|
	63	!nla_line[RDMA_NLDEV_ATTR_RES_USECNT] \|\|
	64	(!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
	65	!nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
	66	return MNL_CB_ERROR;
	67	}
	68
	69	cqe = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CQE]);
	70
	71	users = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_USECNT]);
	72	if (rd_check_is_filtered(rd, "users", users))
	73	continue;
74
75	if (nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]) {
76	poll_ctx = mnl_attr_get_u8(
77	nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]);
78	if (rd_check_is_string_filtered(
79	rd, "poll-ctx", poll_ctx_to_str(poll_ctx)))
80	continue;
81	}
82
83	if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
84	pid = mnl_attr_get_u32(
85	nla_line[RDMA_NLDEV_ATTR_RES_PID]);
86	comm = get_task_name(pid);
87	}
88
89	if (rd_check_is_filtered(rd, "pid", pid)) {
90	free(comm);
91	continue;
92	}
93
94	if (nla_line[RDMA_NLDEV_ATTR_RES_CQN])
95	cqn = mnl_attr_get_u32(
96	nla_line[RDMA_NLDEV_ATTR_RES_CQN]);
97	if (rd_check_is_filtered(rd, "cqn", cqn))
98	continue;
99
100	if (nla_line[RDMA_NLDEV_ATTR_RES_CTXN])
101	ctxn = mnl_attr_get_u32(
102	nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
103	if (rd_check_is_filtered(rd, "ctxn", ctxn))
104	continue;
105
106	if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
107	/* discard const from mnl_attr_get_str */
108	comm = (char *)mnl_attr_get_str(
109	nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]);
110
111	if (rd->json_output)
112	jsonw_start_array(rd->jw);
113
114	print_dev(rd, idx, name);
05846c9c LR	115	res_print_uint(rd, "cqe", cqe);
05846c9c LR	116	res_print_uint(rd, "users", users);
fcdd2e0c LR	117	if (nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX])
fcdd2e0c LR	118	print_poll_ctx(rd, poll_ctx);
05846c9c	119	res_print_uint(rd, "pid", pid);
fcdd2e0c LR	120	print_comm(rd, comm, nla_line);
	121
	122	if (nla_line[RDMA_NLDEV_ATTR_RES_CQN])
	123	res_print_uint(rd, "cqn", cqn);
	124	if (nla_line[RDMA_NLDEV_ATTR_RES_CTXN])
	125	res_print_uint(rd, "ctxn", ctxn);
	126
	127	if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
	128	free(comm);
	129
	130	print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
	131	newline(rd);
	132	}
	133	return MNL_CB_OK;
	134	}
	135