Blame rdma/rdma.c

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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
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/*
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 * rdma.c	RDMA tool
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 * Authors:     Leon Romanovsky <leonro@mellanox.com>
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 */
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#include "rdma.h"
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#include "version.h"
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#include "color.h"
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static void help(char *name)
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{
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	pr_out("Usage: %s [ OPTIONS ] OBJECT { COMMAND | help }\n"
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	       "       %s [ -f[orce] ] -b[atch] filename\n"
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	       "where  OBJECT := { dev | link | resource | system | statistic | help }\n"
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	       "       OPTIONS := { -V[ersion] | -d[etails] | -j[son] | -p[retty] -r[aw]}\n", name, name);
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}
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static int cmd_help(struct rd *rd)
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{
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	help(rd->filename);
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	return 0;
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}
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static int rd_cmd(struct rd *rd, int argc, char **argv)
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{
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	const struct rd_cmd cmds[] = {
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		{ NULL,		cmd_help },
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		{ "help",	cmd_help },
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		{ "dev",	cmd_dev },
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		{ "link",	cmd_link },
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		{ "resource",	cmd_res },
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		{ "system",	cmd_sys },
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		{ "statistic",	cmd_stat },
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		{ 0 }
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	};
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	rd->argc = argc;
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	rd->argv = argv;
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	return rd_exec_cmd(rd, cmds, "object");
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}
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static int rd_batch_cmd(int argc, char *argv[], void *data)
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{
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	struct rd *rd = data;
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	return rd_cmd(rd, argc, argv);
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}
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static int rd_batch(struct rd *rd, const char *name, bool force)
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{
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	return do_batch(name, force, rd_batch_cmd, rd);
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}
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static int rd_init(struct rd *rd, char *filename)
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{
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	uint32_t seq;
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	int ret;
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	rd->filename = filename;
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	INIT_LIST_HEAD(&rd->dev_map_list);
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	INIT_LIST_HEAD(&rd->filter_list);
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	rd->buff = malloc(MNL_SOCKET_BUFFER_SIZE);
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	if (!rd->buff)
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		return -ENOMEM;
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	rd_prepare_msg(rd, RDMA_NLDEV_CMD_GET,
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		       &seq, (NLM_F_REQUEST | NLM_F_ACK | NLM_F_DUMP));
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	ret = rd_send_msg(rd);
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	if (ret)
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		return ret;
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	return rd_recv_msg(rd, rd_dev_init_cb, rd, seq);
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}
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static void rd_cleanup(struct rd *rd)
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{
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	rd_free(rd);
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}
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int main(int argc, char **argv)
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{
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	static const struct option long_options[] = {
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		{ "version",		no_argument,		NULL, 'V' },
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		{ "help",		no_argument,		NULL, 'h' },
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		{ "json",		no_argument,		NULL, 'j' },
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		{ "pretty",		no_argument,		NULL, 'p' },
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		{ "details",		no_argument,		NULL, 'd' },
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		{ "raw",		no_argument,		NULL, 'r' },
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		{ "force",		no_argument,		NULL, 'f' },
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		{ "batch",		required_argument,	NULL, 'b' },
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		{ NULL, 0, NULL, 0 }
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	};
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	bool show_driver_details = false;
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	const char *batch_file = NULL;
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	bool show_details = false;
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	bool json_output = false;
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	bool show_raw = false;
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	bool force = false;
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	struct rd rd = {};
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	char *filename;
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	int opt;
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	int err;
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	filename = basename(argv[0]);
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	while ((opt = getopt_long(argc, argv, ":Vhdrpjfb:",
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				  long_options, NULL)) >= 0) {
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		switch (opt) {
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		case 'V':
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			printf("%s utility, iproute2-%s\n",
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			       filename, version);
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			return EXIT_SUCCESS;
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		case 'p':
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			pretty = 1;
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			break;
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		case 'd':
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			if (show_details)
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				show_driver_details = true;
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			else
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				show_details = true;
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			break;
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		case 'r':
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			show_raw = true;
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			break;
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		case 'j':
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			json_output = 1;
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			break;
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		case 'f':
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			force = true;
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			break;
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		case 'b':
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			batch_file = optarg;
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			break;
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		case 'h':
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			help(filename);
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			return EXIT_SUCCESS;
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		case ':':
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			pr_err("-%c option requires an argument\n", optopt);
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			return EXIT_FAILURE;
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		default:
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			pr_err("Unknown option.\n");
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			help(filename);
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			return EXIT_FAILURE;
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		}
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	}
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	argc -= optind;
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	argv += optind;
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	rd.show_details = show_details;
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	rd.show_driver_details = show_driver_details;
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	rd.json_output = json_output;
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	rd.pretty_output = pretty;
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	rd.show_raw = show_raw;
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	err = rd_init(&rd, filename);
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	if (err)
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		goto out;
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	if (batch_file)
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		err = rd_batch(&rd, batch_file, force);
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	else
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		err = rd_cmd(&rd, argc, argv);
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out:
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	/* Always cleanup */
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	rd_cleanup(&rd);
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	return err ? EXIT_FAILURE : EXIT_SUCCESS;
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}