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

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

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

static int res_mr_line(struct rd *rd, const char *name, int idx,
		       struct nlattr *nla_entry)
{
	struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
	uint32_t rkey = 0, lkey = 0;
	uint64_t iova = 0, mrlen;
	char *comm = NULL;
	uint32_t pdn = 0;
	uint32_t mrn = 0;
	uint32_t pid = 0;
	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_MRLEN] ||
	    (!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
	     !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
		return MNL_CB_ERROR;
	}

	if (nla_line[RDMA_NLDEV_ATTR_RES_RKEY])
		rkey = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RKEY]);
	if (nla_line[RDMA_NLDEV_ATTR_RES_LKEY])
		lkey = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LKEY]);
	if (nla_line[RDMA_NLDEV_ATTR_RES_IOVA])
		iova = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_IOVA]);

	mrlen = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_MRLEN]);
	if (rd_check_is_filtered(rd, "mrlen", mrlen))
		goto out;

	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))
		goto out;

	if (nla_line[RDMA_NLDEV_ATTR_RES_MRN])
		mrn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_MRN]);
	if (rd_check_is_filtered(rd, "mrn", mrn))
		goto out;

	if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
		pdn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
	if (rd_check_is_filtered(rd, "pdn", pdn))
		goto out;

	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);
	if (nla_line[RDMA_NLDEV_ATTR_RES_RKEY])
		print_key(rd, "rkey", rkey);
	if (nla_line[RDMA_NLDEV_ATTR_RES_LKEY])
		print_key(rd, "lkey", lkey);
	if (nla_line[RDMA_NLDEV_ATTR_RES_IOVA])
		print_key(rd, "iova", iova);
	res_print_uint(rd, "mrlen", mrlen);
	res_print_uint(rd, "pid", pid);
	print_comm(rd, comm, nla_line);

	if (nla_line[RDMA_NLDEV_ATTR_RES_MRN])
		res_print_uint(rd, "mrn", mrn);

	if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
		res_print_uint(rd, "pdn", pdn);

	print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
	newline(rd);

out:
	if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
		free(comm);
	return MNL_CB_OK;
}
int res_mr_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;
	int ret = MNL_CB_OK;
	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_MR])
		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_MR];

	mnl_attr_for_each_nested(nla_entry, nla_table) {
		ret = res_mr_line(rd, name, idx, nla_entry);

		if (ret != MNL_CB_OK)
			break;
	}
	return ret;
}
Commit	Line	Data
42ed283e LR	1	// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
	2	/*
	3	* res-mr.c RDMA tool
	4	* Authors: Leon Romanovsky <leonro@mellanox.com>
	5	*/
	6
	7	#include "res.h"
	8	#include <inttypes.h>
	9
46695227 LR	10	static int res_mr_line(struct rd rd, const char name, int idx,
	11	struct nlattr *nla_entry)
	12	{
	13	struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
	14	uint32_t rkey = 0, lkey = 0;
	15	uint64_t iova = 0, mrlen;
	16	char *comm = NULL;
	17	uint32_t pdn = 0;
	18	uint32_t mrn = 0;
	19	uint32_t pid = 0;
	20	int err;
	21
	22	err = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
	23	if (err != MNL_CB_OK)
	24	return MNL_CB_ERROR;
	25
	26	if (!nla_line[RDMA_NLDEV_ATTR_RES_MRLEN] \|\|
	27	(!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
	28	!nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
	29	return MNL_CB_ERROR;
	30	}
	31
	32	if (nla_line[RDMA_NLDEV_ATTR_RES_RKEY])
	33	rkey = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RKEY]);
	34	if (nla_line[RDMA_NLDEV_ATTR_RES_LKEY])
	35	lkey = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LKEY]);
	36	if (nla_line[RDMA_NLDEV_ATTR_RES_IOVA])
	37	iova = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_IOVA]);
	38
	39	mrlen = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_MRLEN]);
	40	if (rd_check_is_filtered(rd, "mrlen", mrlen))
	41	goto out;
	42
	43	if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
	44	pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]);
	45	comm = get_task_name(pid);
	46	}
	47
	48	if (rd_check_is_filtered(rd, "pid", pid))
	49	goto out;
	50
	51	if (nla_line[RDMA_NLDEV_ATTR_RES_MRN])
	52	mrn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_MRN]);
	53	if (rd_check_is_filtered(rd, "mrn", mrn))
	54	goto out;
	55
	56	if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
	57	pdn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
	58	if (rd_check_is_filtered(rd, "pdn", pdn))
	59	goto out;
	60
	61	if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
	62	/* discard const from mnl_attr_get_str */
	63	comm = (char *)mnl_attr_get_str(
	64	nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]);
	65
	66	if (rd->json_output)
	67	jsonw_start_array(rd->jw);
	68
	69	print_dev(rd, idx, name);
	70	if (nla_line[RDMA_NLDEV_ATTR_RES_RKEY])
	71	print_key(rd, "rkey", rkey);
	72	if (nla_line[RDMA_NLDEV_ATTR_RES_LKEY])
	73	print_key(rd, "lkey", lkey);
74	if (nla_line[RDMA_NLDEV_ATTR_RES_IOVA])
75	print_key(rd, "iova", iova);
76	res_print_uint(rd, "mrlen", mrlen);
77	res_print_uint(rd, "pid", pid);
78	print_comm(rd, comm, nla_line);
79
80	if (nla_line[RDMA_NLDEV_ATTR_RES_MRN])
81	res_print_uint(rd, "mrn", mrn);
82
83	if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
84	res_print_uint(rd, "pdn", pdn);
85
86	print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
87	newline(rd);
88
89	out:
90	if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
91	free(comm);
92	return MNL_CB_OK;
93	}
42ed283e LR	94	int res_mr_parse_cb(const struct nlmsghdr nlh, void data)
	95	{
	96	struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
	97	struct nlattr nla_table, nla_entry;
	98	struct rd *rd = data;
46695227	99	int ret = MNL_CB_OK;
42ed283e LR	100	const char *name;
	101	uint32_t idx;
	102
	103	mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
	104	if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] \|\| !tb[RDMA_NLDEV_ATTR_DEV_NAME] \|\|
	105	!tb[RDMA_NLDEV_ATTR_RES_MR])
	106	return MNL_CB_ERROR;
	107
	108	name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
	109	idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
	110	nla_table = tb[RDMA_NLDEV_ATTR_RES_MR];
	111
	112	mnl_attr_for_each_nested(nla_entry, nla_table) {
46695227 LR	113	ret = res_mr_line(rd, name, idx, nla_entry);
	114
	115	if (ret != MNL_CB_OK)
	116	break;
42ed283e	117	}
46695227	118	return ret;
42ed283e	119	}