Blame rdma/res-mr.c

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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
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/*
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 * res-mr.c	RDMA tool
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 * Authors:     Leon Romanovsky <leonro@mellanox.com>
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 */
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#include "res.h"
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#include <inttypes.h>
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static int res_mr_line_raw(struct rd *rd, const char *name, int idx,
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			   struct nlattr **nla_line)
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{
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	if (!nla_line[RDMA_NLDEV_ATTR_RES_RAW])
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		return MNL_CB_ERROR;
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	open_json_object(NULL);
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	print_dev(rd, idx, name);
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	print_raw_data(rd, nla_line);
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	newline(rd);
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	return MNL_CB_OK;
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}
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static int res_mr_line(struct rd *rd, const char *name, int idx,
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		       struct nlattr **nla_line)
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{
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	uint32_t rkey = 0, lkey = 0;
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	uint64_t iova = 0, mrlen;
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	char *comm = NULL;
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	uint32_t pdn = 0;
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	uint32_t mrn = 0;
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	uint32_t pid = 0;
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	if (!nla_line[RDMA_NLDEV_ATTR_RES_MRLEN])
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		return MNL_CB_ERROR;
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	if (nla_line[RDMA_NLDEV_ATTR_RES_RKEY])
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		rkey = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RKEY]);
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	if (nla_line[RDMA_NLDEV_ATTR_RES_LKEY])
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		lkey = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LKEY]);
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	if (nla_line[RDMA_NLDEV_ATTR_RES_IOVA])
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		iova = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_IOVA]);
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	mrlen = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_MRLEN]);
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	if (rd_is_filtered_attr(rd, "mrlen", mrlen,
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				nla_line[RDMA_NLDEV_ATTR_RES_MRLEN]))
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		goto out;
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	if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
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		pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]);
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		comm = get_task_name(pid);
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	}
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	if (rd_is_filtered_attr(rd, "pid", pid,
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				nla_line[RDMA_NLDEV_ATTR_RES_PID]))
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		goto out;
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	if (nla_line[RDMA_NLDEV_ATTR_RES_MRN])
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		mrn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_MRN]);
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	if (rd_is_filtered_attr(rd, "mrn", mrn,
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				nla_line[RDMA_NLDEV_ATTR_RES_MRN]))
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		goto out;
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	if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
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		pdn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
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	if (rd_is_filtered_attr(rd, "pdn", pdn,
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				nla_line[RDMA_NLDEV_ATTR_RES_PDN]))
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		goto out;
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	if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
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		/* discard const from mnl_attr_get_str */
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		comm = (char *)mnl_attr_get_str(
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			nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]);
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	open_json_object(NULL);
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	print_dev(rd, idx, name);
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	res_print_uint(rd, "mrn", mrn, nla_line[RDMA_NLDEV_ATTR_RES_MRN]);
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	print_key(rd, "rkey", rkey, nla_line[RDMA_NLDEV_ATTR_RES_RKEY]);
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	print_key(rd, "lkey", lkey, nla_line[RDMA_NLDEV_ATTR_RES_LKEY]);
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	print_key(rd, "iova", iova, nla_line[RDMA_NLDEV_ATTR_RES_IOVA]);
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	res_print_uint(rd, "mrlen", mrlen, nla_line[RDMA_NLDEV_ATTR_RES_MRLEN]);
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	res_print_uint(rd, "pdn", pdn, nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
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	res_print_uint(rd, "pid", pid, nla_line[RDMA_NLDEV_ATTR_RES_PID]);
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	print_comm(rd, comm, nla_line);
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	print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
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	print_raw_data(rd, nla_line);
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	newline(rd);
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out:
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	if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
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		free(comm);
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	return MNL_CB_OK;
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}
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int res_mr_idx_parse_cb(const struct nlmsghdr *nlh, void *data)
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{
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	struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
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	struct rd *rd = data;
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	const char *name;
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	uint32_t idx;
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	mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
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	if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME])
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		return MNL_CB_ERROR;
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	name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
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	idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
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	return (rd->show_raw) ? res_mr_line_raw(rd, name, idx, tb) :
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		res_mr_line(rd, name, idx, tb);
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}
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int res_mr_parse_cb(const struct nlmsghdr *nlh, void *data)
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{
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	struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
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	struct nlattr *nla_table, *nla_entry;
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	struct rd *rd = data;
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	int ret = MNL_CB_OK;
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	const char *name;
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	uint32_t idx;
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	mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
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	if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
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	    !tb[RDMA_NLDEV_ATTR_RES_MR])
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		return MNL_CB_ERROR;
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	name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
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	idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
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	nla_table = tb[RDMA_NLDEV_ATTR_RES_MR];
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	mnl_attr_for_each_nested(nla_entry, nla_table) {
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		struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
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		ret = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
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		if (ret != MNL_CB_OK)
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			break;
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		ret = (rd->show_raw) ? res_mr_line_raw(rd, name, idx, nla_line) :
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			res_mr_line(rd, name, idx, nla_line);
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		if (ret != MNL_CB_OK)
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			break;
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	}
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	return ret;
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}