[mirror_iproute2.git] / rdma / dev.c

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

#include <fcntl.h>
#include "rdma.h"

static int dev_help(struct rd *rd)
{
	pr_out("Usage: %s dev show [DEV]\n", rd->filename);
	pr_out("       %s dev set [DEV] name DEVNAME\n", rd->filename);
	pr_out("       %s dev set [DEV] netns NSNAME\n", rd->filename);
	pr_out("       %s dev set [DEV] adaptive-moderation [on|off]\n", rd->filename);
	return 0;
}

static const char *dev_caps_to_str(uint32_t idx)
{
#define RDMA_DEV_FLAGS_LOW(x) \
	x(RESIZE_MAX_WR, 0) \
	x(BAD_PKEY_CNTR, 1) \
	x(BAD_QKEY_CNTR, 2) \
	x(RAW_MULTI, 3) \
	x(AUTO_PATH_MIG, 4) \
	x(CHANGE_PHY_PORT, 5) \
	x(UD_AV_PORT_ENFORCE_PORT_ENFORCE, 6) \
	x(CURR_QP_STATE_MOD, 7) \
	x(SHUTDOWN_PORT, 8) \
	x(INIT_TYPE, 9) \
	x(PORT_ACTIVE_EVENT, 10) \
	x(SYS_IMAGE_GUID, 11) \
	x(RC_RNR_NAK_GEN, 12) \
	x(SRQ_RESIZE, 13) \
	x(N_NOTIFY_CQ, 14) \
	x(LOCAL_DMA_LKEY, 15) \
	x(MEM_WINDOW, 17) \
	x(UD_IP_CSUM, 18) \
	x(UD_TSO, 19) \
	x(XRC, 20) \
	x(MEM_MGT_EXTENSIONS, 21) \
	x(BLOCK_MULTICAST_LOOPBACK, 22) \
	x(MEM_WINDOW_TYPE_2A, 23) \
	x(MEM_WINDOW_TYPE_2B, 24) \
	x(RC_IP_CSUM, 25) \
	x(RAW_IP_CSUM, 26) \
	x(CROSS_CHANNEL, 27) \
	x(MANAGED_FLOW_STEERING, 29) \
	x(SIGNATURE_HANDOVER, 30) \
	x(ON_DEMAND_PAGING, 31)

#define RDMA_DEV_FLAGS_HIGH(x) \
	x(SG_GAPS_REG, 0) \
	x(VIRTUAL_FUNCTION, 1) \
	x(RAW_SCATTER_FCS, 2) \
	x(RDMA_NETDEV_OPA_VNIC, 3) \
	x(PCI_WRITE_END_PADDING, 4)

	/*
	 * Separation below is needed to allow compilation of rdmatool
	 * on 32bits systems. On such systems, C-enum is limited to be
	 * int and can't hold more than 32 bits.
	 */
	enum { RDMA_DEV_FLAGS_LOW(RDMA_BITMAP_ENUM) };
	enum { RDMA_DEV_FLAGS_HIGH(RDMA_BITMAP_ENUM) };

	static const char * const
		rdma_dev_names_low[] = { RDMA_DEV_FLAGS_LOW(RDMA_BITMAP_NAMES) };
	static const char * const
		rdma_dev_names_high[] = { RDMA_DEV_FLAGS_HIGH(RDMA_BITMAP_NAMES) };
	uint32_t high_idx;
	#undef RDMA_DEV_FLAGS_LOW
	#undef RDMA_DEV_FLAGS_HIGH

	if (idx < ARRAY_SIZE(rdma_dev_names_low) && rdma_dev_names_low[idx])
		return rdma_dev_names_low[idx];

	high_idx = idx - ARRAY_SIZE(rdma_dev_names_low);
	if (high_idx <  ARRAY_SIZE(rdma_dev_names_high) &&
	    rdma_dev_names_high[high_idx])
		return rdma_dev_names_high[high_idx];

	return "UNKNOWN";
}

static void dev_print_caps(struct rd *rd, struct nlattr **tb)
{
	uint64_t caps;
	uint32_t idx;

	if (!tb[RDMA_NLDEV_ATTR_CAP_FLAGS])
		return;

	caps = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_CAP_FLAGS]);

	if (rd->json_output) {
		jsonw_name(rd->jw, "caps");
		jsonw_start_array(rd->jw);
	} else {
		pr_out("\n    caps: <");
	}
	for (idx = 0; caps; idx++) {
		if (caps & 0x1) {
			if (rd->json_output) {
				jsonw_string(rd->jw, dev_caps_to_str(idx));
			} else {
				pr_out("%s", dev_caps_to_str(idx));
				if (caps >> 0x1)
					pr_out(", ");
			}
		}
		caps >>= 0x1;
	}

	if (rd->json_output)
		jsonw_end_array(rd->jw);
	else
		pr_out(">");
}

static void dev_print_fw(struct rd *rd, struct nlattr **tb)
{
	const char *str;
	if (!tb[RDMA_NLDEV_ATTR_FW_VERSION])
		return;

	str = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_FW_VERSION]);
	if (rd->json_output)
		jsonw_string_field(rd->jw, "fw", str);
	else
		pr_out("fw %s ", str);
}

static void dev_print_node_guid(struct rd *rd, struct nlattr **tb)
{
	uint64_t node_guid;
	uint16_t vp[4];
	char str[32];

	if (!tb[RDMA_NLDEV_ATTR_NODE_GUID])
		return;

	node_guid = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_NODE_GUID]);
	memcpy(vp, &node_guid, sizeof(uint64_t));
	snprintf(str, 32, "%04x:%04x:%04x:%04x", vp[3], vp[2], vp[1], vp[0]);
	if (rd->json_output)
		jsonw_string_field(rd->jw, "node_guid", str);
	else
		pr_out("node_guid %s ", str);
}

static void dev_print_sys_image_guid(struct rd *rd, struct nlattr **tb)
{
	uint64_t sys_image_guid;
	uint16_t vp[4];
	char str[32];

	if (!tb[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID])
		return;

	sys_image_guid = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID]);
	memcpy(vp, &sys_image_guid, sizeof(uint64_t));
	snprintf(str, 32, "%04x:%04x:%04x:%04x", vp[3], vp[2], vp[1], vp[0]);
	if (rd->json_output)
		jsonw_string_field(rd->jw, "sys_image_guid", str);
	else
		pr_out("sys_image_guid %s ", str);
}

static void dev_print_dim_setting(struct rd *rd, struct nlattr **tb)
{
	uint8_t dim_setting;

	if (!tb[RDMA_NLDEV_ATTR_DEV_DIM])
		return;

	dim_setting = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_DEV_DIM]);
	if (dim_setting > 1)
		return;

	print_on_off(rd, "adaptive-moderation", dim_setting);

}

static const char *node_type_to_str(uint8_t node_type)
{
	static const char * const node_type_str[] = { "unknown", "ca",
						      "switch", "router",
						      "rnic", "usnic",
						      "usnic_udp",
						      "unspecified" };
	if (node_type < ARRAY_SIZE(node_type_str))
		return node_type_str[node_type];
	return "unknown";
}

static void dev_print_node_type(struct rd *rd, struct nlattr **tb)
{
	const char *node_str;
	uint8_t node_type;

	if (!tb[RDMA_NLDEV_ATTR_DEV_NODE_TYPE])
		return;

	node_type = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_DEV_NODE_TYPE]);
	node_str = node_type_to_str(node_type);
	if (rd->json_output)
		jsonw_string_field(rd->jw, "node_type", node_str);
	else
		pr_out("node_type %s ", node_str);
}

static int dev_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])
		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);
	}

	dev_print_node_type(rd, tb);
	dev_print_fw(rd, tb);
	dev_print_node_guid(rd, tb);
	dev_print_sys_image_guid(rd, tb);
	if (rd->show_details) {
		dev_print_dim_setting(rd, tb);
		dev_print_caps(rd, tb);
	}

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

static int dev_no_args(struct rd *rd)
{
	uint32_t seq;
	int ret;

	rd_prepare_msg(rd, RDMA_NLDEV_CMD_GET,
		       &seq, (NLM_F_REQUEST | NLM_F_ACK));
	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
	ret = rd_send_msg(rd);
	if (ret)
		return ret;

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

static int dev_one_show(struct rd *rd)
{
	const struct rd_cmd cmds[] = {
		{ NULL,		dev_no_args},
		{ 0 }
	};

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

static int dev_set_name(struct rd *rd)
{
	uint32_t seq;

	if (rd_no_arg(rd)) {
		pr_err("Please provide device new name.\n");
		return -EINVAL;
	}

	rd_prepare_msg(rd, RDMA_NLDEV_CMD_SET,
		       &seq, (NLM_F_REQUEST | NLM_F_ACK));
	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
	mnl_attr_put_strz(rd->nlh, RDMA_NLDEV_ATTR_DEV_NAME, rd_argv(rd));

	return rd_sendrecv_msg(rd, seq);
}

static int dev_set_netns(struct rd *rd)
{
	char *netns_path;
	uint32_t seq;
	int netns;
	int ret;

	if (rd_no_arg(rd)) {
		pr_err("Please provide device name.\n");
		return -EINVAL;
	}

	if (asprintf(&netns_path, "%s/%s", NETNS_RUN_DIR, rd_argv(rd)) < 0)
		return -ENOMEM;

	netns = open(netns_path, O_RDONLY | O_CLOEXEC);
	if (netns < 0) {
		fprintf(stderr, "Cannot open network namespace \"%s\": %s\n",
			rd_argv(rd), strerror(errno));
		ret = -EINVAL;
		goto done;
	}

	rd_prepare_msg(rd, RDMA_NLDEV_CMD_SET,
		       &seq, (NLM_F_REQUEST | NLM_F_ACK));
	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_NET_NS_FD, netns);
	ret = rd_sendrecv_msg(rd, seq);
	close(netns);
done:
	free(netns_path);
	return ret;
}

static int dev_set_dim_sendmsg(struct rd *rd, uint8_t dim_setting)
{
	uint32_t seq;

	rd_prepare_msg(rd, RDMA_NLDEV_CMD_SET, &seq,
		       (NLM_F_REQUEST | NLM_F_ACK));
	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
	mnl_attr_put_u8(rd->nlh, RDMA_NLDEV_ATTR_DEV_DIM, dim_setting);

	return rd_sendrecv_msg(rd, seq);
}

static int dev_set_dim_off(struct rd *rd)
{
	return dev_set_dim_sendmsg(rd, 0);
}

static int dev_set_dim_on(struct rd *rd)
{
	return dev_set_dim_sendmsg(rd, 1);
}

static int dev_set_dim(struct rd *rd)
{
	const struct rd_cmd cmds[] = {
		{ NULL,		dev_help},
		{ "on",		dev_set_dim_on},
		{ "off",	dev_set_dim_off},
		{ 0 }
	};

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

static int dev_one_set(struct rd *rd)
{
	const struct rd_cmd cmds[] = {
		{ NULL,		dev_help},
		{ "name",	dev_set_name},
		{ "netns",	dev_set_netns},
		{ "adaptive-moderation",	dev_set_dim},
		{ 0 }
	};

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

static int dev_show(struct rd *rd)
{
	return rd_exec_dev(rd, dev_one_show);
}

static int dev_set(struct rd *rd)
{
	return rd_exec_require_dev(rd, dev_one_set);
}

int cmd_dev(struct rd *rd)
{
	const struct rd_cmd cmds[] = {
		{ NULL,		dev_show },
		{ "show",	dev_show },
		{ "list",	dev_show },
		{ "set",	dev_set },
		{ "help",	dev_help },
		{ 0 }
	};

	return rd_exec_cmd(rd, cmds, "dev command");
}
Commit	Line	Data
835d8321	1	// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
40df8263 LR	2	/*
40df8263 LR	3	* dev.c RDMA tool
40df8263 LR	4	* Authors: Leon Romanovsky <leonro@mellanox.com>
	5	*/
	6
d17a0248	7	#include <fcntl.h>
40df8263 LR	8	#include "rdma.h"
	9
	10	static int dev_help(struct rd *rd)
	11	{
	12	pr_out("Usage: %s dev show [DEV]\n", rd->filename);
4443c9c6	13	pr_out(" %s dev set [DEV] name DEVNAME\n", rd->filename);
d17a0248	14	pr_out(" %s dev set [DEV] netns NSNAME\n", rd->filename);
8a56ef32	15	pr_out(" %s dev set [DEV] adaptive-moderation [on\|off]\n", rd->filename);
40df8263 LR	16	return 0;
	17	}
	18
	19	static const char *dev_caps_to_str(uint32_t idx)
	20	{
378dd31b	21	#define RDMA_DEV_FLAGS_LOW(x) \
40df8263 LR	22	x(RESIZE_MAX_WR, 0) \
	23	x(BAD_PKEY_CNTR, 1) \
	24	x(BAD_QKEY_CNTR, 2) \
	25	x(RAW_MULTI, 3) \
	26	x(AUTO_PATH_MIG, 4) \
	27	x(CHANGE_PHY_PORT, 5) \
	28	x(UD_AV_PORT_ENFORCE_PORT_ENFORCE, 6) \
	29	x(CURR_QP_STATE_MOD, 7) \
	30	x(SHUTDOWN_PORT, 8) \
	31	x(INIT_TYPE, 9) \
	32	x(PORT_ACTIVE_EVENT, 10) \
	33	x(SYS_IMAGE_GUID, 11) \
	34	x(RC_RNR_NAK_GEN, 12) \
	35	x(SRQ_RESIZE, 13) \
	36	x(N_NOTIFY_CQ, 14) \
	37	x(LOCAL_DMA_LKEY, 15) \
	38	x(MEM_WINDOW, 17) \
	39	x(UD_IP_CSUM, 18) \
	40	x(UD_TSO, 19) \
	41	x(XRC, 20) \
	42	x(MEM_MGT_EXTENSIONS, 21) \
	43	x(BLOCK_MULTICAST_LOOPBACK, 22) \
	44	x(MEM_WINDOW_TYPE_2A, 23) \
	45	x(MEM_WINDOW_TYPE_2B, 24) \
	46	x(RC_IP_CSUM, 25) \
	47	x(RAW_IP_CSUM, 26) \
	48	x(CROSS_CHANNEL, 27) \
	49	x(MANAGED_FLOW_STEERING, 29) \
	50	x(SIGNATURE_HANDOVER, 30) \
378dd31b	51	x(ON_DEMAND_PAGING, 31)
40df8263	52
378dd31b LR	53	#define RDMA_DEV_FLAGS_HIGH(x) \
	54	x(SG_GAPS_REG, 0) \
	55	x(VIRTUAL_FUNCTION, 1) \
	56	x(RAW_SCATTER_FCS, 2) \
	57	x(RDMA_NETDEV_OPA_VNIC, 3) \
	58	x(PCI_WRITE_END_PADDING, 4)
40df8263	59
378dd31b LR	60	/*
	61	* Separation below is needed to allow compilation of rdmatool
	62	* on 32bits systems. On such systems, C-enum is limited to be
	63	* int and can't hold more than 32 bits.
	64	*/
	65	enum { RDMA_DEV_FLAGS_LOW(RDMA_BITMAP_ENUM) };
	66	enum { RDMA_DEV_FLAGS_HIGH(RDMA_BITMAP_ENUM) };
	67
	68	static const char * const
	69	rdma_dev_names_low[] = { RDMA_DEV_FLAGS_LOW(RDMA_BITMAP_NAMES) };
40df8263	70	static const char * const
378dd31b LR	71	rdma_dev_names_high[] = { RDMA_DEV_FLAGS_HIGH(RDMA_BITMAP_NAMES) };
	72	uint32_t high_idx;
	73	#undef RDMA_DEV_FLAGS_LOW
	74	#undef RDMA_DEV_FLAGS_HIGH
	75
	76	if (idx < ARRAY_SIZE(rdma_dev_names_low) && rdma_dev_names_low[idx])
	77	return rdma_dev_names_low[idx];
	78
	79	high_idx = idx - ARRAY_SIZE(rdma_dev_names_low);
	80	if (high_idx < ARRAY_SIZE(rdma_dev_names_high) &&
	81	rdma_dev_names_high[high_idx])
	82	return rdma_dev_names_high[high_idx];
40df8263	83
40df8263 LR	84	return "UNKNOWN";
	85	}
	86
ef353e2e	87	static void dev_print_caps(struct rd rd, struct nlattr *tb)
40df8263 LR	88	{
	89	uint64_t caps;
	90	uint32_t idx;
	91
	92	if (!tb[RDMA_NLDEV_ATTR_CAP_FLAGS])
	93	return;
	94
	95	caps = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_CAP_FLAGS]);
	96
ef353e2e LR	97	if (rd->json_output) {
	98	jsonw_name(rd->jw, "caps");
	99	jsonw_start_array(rd->jw);
	100	} else {
	101	pr_out("\n caps: <");
	102	}
40df8263 LR	103	for (idx = 0; caps; idx++) {
40df8263 LR	104	if (caps & 0x1) {
ef353e2e LR	105	if (rd->json_output) {
	106	jsonw_string(rd->jw, dev_caps_to_str(idx));
	107	} else {
	108	pr_out("%s", dev_caps_to_str(idx));
	109	if (caps >> 0x1)
	110	pr_out(", ");
	111	}
40df8263 LR	112	}
	113	caps >>= 0x1;
	114	}
	115
ef353e2e LR	116	if (rd->json_output)
	117	jsonw_end_array(rd->jw);
	118	else
	119	pr_out(">");
40df8263 LR	120	}
40df8263 LR	121
ef353e2e	122	static void dev_print_fw(struct rd rd, struct nlattr *tb)
40df8263	123	{
ef353e2e	124	const char *str;
40df8263 LR	125	if (!tb[RDMA_NLDEV_ATTR_FW_VERSION])
	126	return;
	127
ef353e2e LR	128	str = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_FW_VERSION]);
	129	if (rd->json_output)
	130	jsonw_string_field(rd->jw, "fw", str);
	131	else
	132	pr_out("fw %s ", str);
40df8263 LR	133	}
40df8263 LR	134
ef353e2e	135	static void dev_print_node_guid(struct rd rd, struct nlattr *tb)
40df8263 LR	136	{
40df8263 LR	137	uint64_t node_guid;
ef353e2e LR	138	uint16_t vp[4];
ef353e2e LR	139	char str[32];
40df8263 LR	140
	141	if (!tb[RDMA_NLDEV_ATTR_NODE_GUID])
	142	return;
	143
	144	node_guid = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_NODE_GUID]);
ef353e2e LR	145	memcpy(vp, &node_guid, sizeof(uint64_t));
	146	snprintf(str, 32, "%04x:%04x:%04x:%04x", vp[3], vp[2], vp[1], vp[0]);
	147	if (rd->json_output)
	148	jsonw_string_field(rd->jw, "node_guid", str);
	149	else
	150	pr_out("node_guid %s ", str);
40df8263 LR	151	}
40df8263 LR	152
ef353e2e	153	static void dev_print_sys_image_guid(struct rd rd, struct nlattr *tb)
40df8263 LR	154	{
40df8263 LR	155	uint64_t sys_image_guid;
ef353e2e LR	156	uint16_t vp[4];
ef353e2e LR	157	char str[32];
40df8263 LR	158
	159	if (!tb[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID])
	160	return;
	161
	162	sys_image_guid = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_SYS_IMAGE_GUID]);
ef353e2e LR	163	memcpy(vp, &sys_image_guid, sizeof(uint64_t));
	164	snprintf(str, 32, "%04x:%04x:%04x:%04x", vp[3], vp[2], vp[1], vp[0]);
	165	if (rd->json_output)
	166	jsonw_string_field(rd->jw, "sys_image_guid", str);
	167	else
	168	pr_out("sys_image_guid %s ", str);
40df8263 LR	169	}
40df8263 LR	170
8a56ef32 YF	171	static void dev_print_dim_setting(struct rd rd, struct nlattr *tb)
	172	{
	173	uint8_t dim_setting;
	174
	175	if (!tb[RDMA_NLDEV_ATTR_DEV_DIM])
	176	return;
	177
	178	dim_setting = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_DEV_DIM]);
	179	if (dim_setting > 1)
	180	return;
	181
	182	print_on_off(rd, "adaptive-moderation", dim_setting);
	183
	184	}
	185
40df8263 LR	186	static const char *node_type_to_str(uint8_t node_type)
	187	{
	188	static const char * const node_type_str[] = { "unknown", "ca",
	189	"switch", "router",
	190	"rnic", "usnic",
7087f7c0 GP	191	"usnic_udp",
7087f7c0 GP	192	"unspecified" };
40df8263 LR	193	if (node_type < ARRAY_SIZE(node_type_str))
	194	return node_type_str[node_type];
	195	return "unknown";
	196	}
	197
ef353e2e	198	static void dev_print_node_type(struct rd rd, struct nlattr *tb)
40df8263	199	{
ef353e2e	200	const char *node_str;
40df8263 LR	201	uint8_t node_type;
	202
	203	if (!tb[RDMA_NLDEV_ATTR_DEV_NODE_TYPE])
	204	return;
	205
	206	node_type = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_DEV_NODE_TYPE]);
ef353e2e LR	207	node_str = node_type_to_str(node_type);
	208	if (rd->json_output)
	209	jsonw_string_field(rd->jw, "node_type", node_str);
	210	else
	211	pr_out("node_type %s ", node_str);
40df8263 LR	212	}
	213
	214	static int dev_parse_cb(const struct nlmsghdr nlh, void data)
	215	{
	216	struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
	217	struct rd *rd = data;
ef353e2e LR	218	const char *name;
ef353e2e LR	219	uint32_t idx;
40df8263 LR	220
	221	mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
	222	if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] \|\| !tb[RDMA_NLDEV_ATTR_DEV_NAME])
	223	return MNL_CB_ERROR;
	224
ef353e2e LR	225	idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
	226	name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
	227	if (rd->json_output) {
	228	jsonw_uint_field(rd->jw, "ifindex", idx);
	229	jsonw_string_field(rd->jw, "ifname", name);
	230	} else {
	231	pr_out("%u: %s: ", idx, name);
	232	}
	233
	234	dev_print_node_type(rd, tb);
	235	dev_print_fw(rd, tb);
	236	dev_print_node_guid(rd, tb);
	237	dev_print_sys_image_guid(rd, tb);
8a56ef32 YF	238	if (rd->show_details) {
8a56ef32 YF	239	dev_print_dim_setting(rd, tb);
ef353e2e	240	dev_print_caps(rd, tb);
8a56ef32	241	}
40df8263	242
ef353e2e LR	243	if (!rd->json_output)
ef353e2e LR	244	pr_out("\n");
40df8263 LR	245	return MNL_CB_OK;
	246	}
	247
	248	static int dev_no_args(struct rd *rd)
	249	{
	250	uint32_t seq;
	251	int ret;
	252
	253	rd_prepare_msg(rd, RDMA_NLDEV_CMD_GET,
	254	&seq, (NLM_F_REQUEST \| NLM_F_ACK));
	255	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
	256	ret = rd_send_msg(rd);
	257	if (ret)
	258	return ret;
	259
ef353e2e LR	260	if (rd->json_output)
	261	jsonw_start_object(rd->jw);
	262	ret = rd_recv_msg(rd, dev_parse_cb, rd, seq);
	263	if (rd->json_output)
	264	jsonw_end_object(rd->jw);
	265	return ret;
40df8263 LR	266	}
	267
	268	static int dev_one_show(struct rd *rd)
	269	{
	270	const struct rd_cmd cmds[] = {
	271	{ NULL, dev_no_args},
	272	{ 0 }
	273	};
	274
	275	return rd_exec_cmd(rd, cmds, "parameter");
	276	}
	277
4443c9c6 LR	278	static int dev_set_name(struct rd *rd)
	279	{
	280	uint32_t seq;
	281
	282	if (rd_no_arg(rd)) {
	283	pr_err("Please provide device new name.\n");
	284	return -EINVAL;
	285	}
	286
	287	rd_prepare_msg(rd, RDMA_NLDEV_CMD_SET,
	288	&seq, (NLM_F_REQUEST \| NLM_F_ACK));
	289	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
	290	mnl_attr_put_strz(rd->nlh, RDMA_NLDEV_ATTR_DEV_NAME, rd_argv(rd));
	291
8f5cfd23	292	return rd_sendrecv_msg(rd, seq);
4443c9c6 LR	293	}
4443c9c6 LR	294
d17a0248 PP	295	static int dev_set_netns(struct rd *rd)
	296	{
	297	char *netns_path;
	298	uint32_t seq;
	299	int netns;
	300	int ret;
	301
	302	if (rd_no_arg(rd)) {
	303	pr_err("Please provide device name.\n");
	304	return -EINVAL;
	305	}
	306
	307	if (asprintf(&netns_path, "%s/%s", NETNS_RUN_DIR, rd_argv(rd)) < 0)
	308	return -ENOMEM;
	309
	310	netns = open(netns_path, O_RDONLY \| O_CLOEXEC);
	311	if (netns < 0) {
	312	fprintf(stderr, "Cannot open network namespace \"%s\": %s\n",
	313	rd_argv(rd), strerror(errno));
	314	ret = -EINVAL;
	315	goto done;
	316	}
	317
	318	rd_prepare_msg(rd, RDMA_NLDEV_CMD_SET,
	319	&seq, (NLM_F_REQUEST \| NLM_F_ACK));
	320	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
	321	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_NET_NS_FD, netns);
	322	ret = rd_sendrecv_msg(rd, seq);
	323	close(netns);
	324	done:
	325	free(netns_path);
	326	return ret;
	327	}
	328
8a56ef32 YF	329	static int dev_set_dim_sendmsg(struct rd *rd, uint8_t dim_setting)
	330	{
	331	uint32_t seq;
	332
	333	rd_prepare_msg(rd, RDMA_NLDEV_CMD_SET, &seq,
	334	(NLM_F_REQUEST \| NLM_F_ACK));
	335	mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
	336	mnl_attr_put_u8(rd->nlh, RDMA_NLDEV_ATTR_DEV_DIM, dim_setting);
	337
	338	return rd_sendrecv_msg(rd, seq);
	339	}
	340
	341	static int dev_set_dim_off(struct rd *rd)
	342	{
	343	return dev_set_dim_sendmsg(rd, 0);
	344	}
	345
	346	static int dev_set_dim_on(struct rd *rd)
	347	{
	348	return dev_set_dim_sendmsg(rd, 1);
	349	}
	350
	351	static int dev_set_dim(struct rd *rd)
	352	{
	353	const struct rd_cmd cmds[] = {
	354	{ NULL, dev_help},
	355	{ "on", dev_set_dim_on},
	356	{ "off", dev_set_dim_off},
	357	{ 0 }
	358	};
	359
	360	return rd_exec_cmd(rd, cmds, "parameter");
	361	}
	362
4443c9c6 LR	363	static int dev_one_set(struct rd *rd)
	364	{
	365	const struct rd_cmd cmds[] = {
	366	{ NULL, dev_help},
	367	{ "name", dev_set_name},
d17a0248	368	{ "netns", dev_set_netns},
8a56ef32	369	{ "adaptive-moderation", dev_set_dim},
4443c9c6 LR	370	{ 0 }
	371	};
	372
	373	return rd_exec_cmd(rd, cmds, "parameter");
	374	}
	375
40df8263 LR	376	static int dev_show(struct rd *rd)
40df8263 LR	377	{
8b92a2c9	378	return rd_exec_dev(rd, dev_one_show);
40df8263 LR	379	}
40df8263 LR	380
4443c9c6 LR	381	static int dev_set(struct rd *rd)
	382	{
	383	return rd_exec_require_dev(rd, dev_one_set);
	384	}
	385
40df8263 LR	386	int cmd_dev(struct rd *rd)
	387	{
	388	const struct rd_cmd cmds[] = {
	389	{ NULL, dev_show },
	390	{ "show", dev_show },
	391	{ "list", dev_show },
4443c9c6	392	{ "set", dev_set },
40df8263 LR	393	{ "help", dev_help },
	394	{ 0 }
	395	};
	396
	397	return rd_exec_cmd(rd, cmds, "dev command");
	398	}