// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* link.c RDMA tool
* Authors: Leon Romanovsky <leonro@mellanox.com>
*/
#include "rdma.h"
static int link_help(struct rd *rd)
{
pr_out("Usage: %s link show [DEV/PORT_INDEX]\n", rd->filename);
pr_out("Usage: %s link add NAME type TYPE netdev NETDEV\n",
rd->filename);
pr_out("Usage: %s link delete NAME\n", rd->filename);
return 0;
}
static const char *caps_to_str(uint32_t idx)
{
#define RDMA_PORT_FLAGS_LOW(x) \
x(RESERVED, 0) \
x(SM, 1) \
x(NOTICE, 2) \
x(TRAP, 3) \
x(OPT_IPD, 4) \
x(AUTO_MIGR, 5) \
x(SL_MAP, 6) \
x(MKEY_NVRAM, 7) \
x(PKEY_NVRAM, 8) \
x(LED_INFO, 9) \
x(SM_DISABLED, 10) \
x(SYS_IMAGE_GUID, 11) \
x(PKEY_SW_EXT_PORT_TRAP, 12) \
x(CABLE_INFO, 13) \
x(EXTENDED_SPEEDS, 14) \
x(CAP_MASK2, 15) \
x(CM, 16) \
x(SNMP_TUNNEL, 17) \
x(REINIT, 18) \
x(DEVICE_MGMT, 19) \
x(VENDOR_CLASS, 20) \
x(DR_NOTICE, 21) \
x(CAP_MASK_NOTICE, 22) \
x(BOOT_MGMT, 23) \
x(LINK_LATENCY, 24) \
x(CLIENT_REG, 25) \
x(OTHER_LOCAL_CHANGES, 26) \
x(LINK_SPPED_WIDTH, 27) \
x(VENDOR_SPECIFIC_MADS, 28) \
x(MULT_PKER_TRAP, 29) \
x(MULT_FDB, 30) \
x(HIERARCHY_INFO, 31)
#define RDMA_PORT_FLAGS_HIGH(x) \
x(SET_NODE_DESC, 0) \
x(EXT_INFO, 1) \
x(VIRT, 2) \
x(SWITCH_POR_STATE_TABLE, 3) \
x(LINK_WIDTH_2X, 4) \
x(LINK_SPEED_HDR, 5)
/*
* 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_PORT_FLAGS_LOW(RDMA_BITMAP_ENUM) };
enum { RDMA_PORT_FLAGS_HIGH(RDMA_BITMAP_ENUM) };
static const char * const
rdma_port_names_low[] = { RDMA_PORT_FLAGS_LOW(RDMA_BITMAP_NAMES) };
static const char * const
rdma_port_names_high[] = { RDMA_PORT_FLAGS_HIGH(RDMA_BITMAP_NAMES) };
uint32_t high_idx;
#undef RDMA_PORT_FLAGS_LOW
#undef RDMA_PORT_FLAGS_HIGH
if (idx < ARRAY_SIZE(rdma_port_names_low) && rdma_port_names_low[idx])
return rdma_port_names_low[idx];
high_idx = idx - ARRAY_SIZE(rdma_port_names_low);
if (high_idx < ARRAY_SIZE(rdma_port_names_high) &&
rdma_port_names_high[high_idx])
return rdma_port_names_high[high_idx];
return "UNKNOWN";
}
static void link_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]);
print_color_string(PRINT_FP, COLOR_NONE, NULL, "\n caps: <", NULL);
open_json_array(PRINT_JSON, "caps");
for (idx = 0; caps; idx++) {
if (caps & 0x1)
print_color_string(PRINT_ANY, COLOR_NONE, NULL,
caps >> 0x1 ? "%s, " : "%s",
caps_to_str(idx));
caps >>= 0x1;
}
close_json_array(PRINT_ANY, ">");
}
static void link_print_subnet_prefix(struct rd *rd, struct nlattr **tb)
{
uint64_t subnet_prefix;
uint16_t vp[4];
char str[32];
if (!tb[RDMA_NLDEV_ATTR_SUBNET_PREFIX])
return;
subnet_prefix = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_SUBNET_PREFIX]);
memcpy(vp, &subnet_prefix, sizeof(uint64_t));
snprintf(str, 32, "%04x:%04x:%04x:%04x", vp[3], vp[2], vp[1], vp[0]);
print_color_string(PRINT_ANY, COLOR_NONE, "subnet_prefix",
"subnet_prefix %s ", str);
}
static void link_print_lid(struct rd *rd, struct nlattr **tb)
{
uint32_t lid;
if (!tb[RDMA_NLDEV_ATTR_LID])
return;
lid = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_LID]);
print_color_uint(PRINT_ANY, COLOR_NONE, "lid", "lid %u ", lid);
}
static void link_print_sm_lid(struct rd *rd, struct nlattr **tb)
{
uint32_t sm_lid;
if (!tb[RDMA_NLDEV_ATTR_SM_LID])
return;
sm_lid = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_SM_LID]);
print_color_uint(PRINT_ANY, COLOR_NONE, "sm_lid", "sm_lid %u ", sm_lid);
}
static void link_print_lmc(struct rd *rd, struct nlattr **tb)
{
uint8_t lmc;
if (!tb[RDMA_NLDEV_ATTR_LMC])
return;
lmc = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_LMC]);
print_color_uint(PRINT_ANY, COLOR_NONE, "lmc", "lmc %u ", lmc);
}
static const char *link_state_to_str(uint8_t link_state)
{
static const char * const link_state_str[] = { "NOP", "DOWN",
"INIT", "ARMED",
"ACTIVE",
"ACTIVE_DEFER" };
if (link_state < ARRAY_SIZE(link_state_str))
return link_state_str[link_state];
return "UNKNOWN";
}
static void link_print_state(struct rd *rd, struct nlattr **tb)
{
uint8_t state;
if (!tb[RDMA_NLDEV_ATTR_PORT_STATE])
return;
state = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_PORT_STATE]);
print_color_string(PRINT_ANY, COLOR_NONE, "state", "state %s ",
link_state_to_str(state));
}
static const char *phys_state_to_str(uint8_t phys_state)
{
static const char * const phys_state_str[] = { "NOP", "SLEEP",
"POLLING", "DISABLED",
"ARMED", "LINK_UP",
"LINK_ERROR_RECOVER",
"PHY_TEST", "UNKNOWN",
"OPA_OFFLINE",
"UNKNOWN", "OPA_TEST" };
if (phys_state < ARRAY_SIZE(phys_state_str))
return phys_state_str[phys_state];
return "UNKNOWN";
};
static void link_print_phys_state(struct rd *rd, struct nlattr **tb)
{
uint8_t phys_state;
if (!tb[RDMA_NLDEV_ATTR_PORT_PHYS_STATE])
return;
phys_state = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_PORT_PHYS_STATE]);
print_color_string(PRINT_ANY, COLOR_NONE, "physical_state",
"physical_state %s ", phys_state_to_str(phys_state));
}
static void link_print_netdev(struct rd *rd, struct nlattr **tb)
{
const char *netdev_name;
uint32_t idx;
if (!tb[RDMA_NLDEV_ATTR_NDEV_NAME] || !tb[RDMA_NLDEV_ATTR_NDEV_INDEX])
return;
netdev_name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_NDEV_NAME]);
idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_NDEV_INDEX]);
print_color_string(PRINT_ANY, COLOR_NONE, "netdev", "netdev %s ",
netdev_name);
print_color_uint(PRINT_ANY, COLOR_NONE, "netdev_index",
rd->show_details ? "netdev_index %u " : "", idx);
}
static int link_parse_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
struct rd *rd = data;
uint32_t port, idx;
const char *name;
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;
if (!tb[RDMA_NLDEV_ATTR_PORT_INDEX]) {
pr_err("This tool doesn't support switches yet\n");
return MNL_CB_ERROR;
}
idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
port = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_PORT_INDEX]);
name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
open_json_object(NULL);
print_color_uint(PRINT_JSON, COLOR_NONE, "ifindex", NULL, idx);
print_color_string(PRINT_ANY, COLOR_NONE, "ifname", "link %s/", name);
print_color_uint(PRINT_ANY, COLOR_NONE, "port", "%u ", port);
link_print_subnet_prefix(rd, tb);
link_print_lid(rd, tb);
link_print_sm_lid(rd, tb);
link_print_lmc(rd, tb);
link_print_state(rd, tb);
link_print_phys_state(rd, tb);
link_print_netdev(rd, tb);
if (rd->show_details)
link_print_caps(rd, tb);
newline(rd);
return MNL_CB_OK;
}
static int link_no_args(struct rd *rd)
{
uint32_t seq;
int ret;
rd_prepare_msg(rd, RDMA_NLDEV_CMD_PORT_GET, &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_ATTR_PORT_INDEX, rd->port_idx);
ret = rd_send_msg(rd);
if (ret)
return ret;
ret = rd_recv_msg(rd, link_parse_cb, rd, seq);
return ret;
}
static int link_one_show(struct rd *rd)
{
const struct rd_cmd cmds[] = {
{ NULL, link_no_args},
{ 0 }
};
if (!rd->port_idx)
return 0;
return rd_exec_cmd(rd, cmds, "parameter");
}
static int link_show(struct rd *rd)
{
return rd_exec_link(rd, link_one_show, true);
}
static int link_add_netdev(struct rd *rd)
{
char *link_netdev;
uint32_t seq;
if (rd_no_arg(rd)) {
pr_err("Please provide a net device name.\n");
return -EINVAL;
}
link_netdev = rd_argv(rd);
rd_prepare_msg(rd, RDMA_NLDEV_CMD_NEWLINK, &seq,
(NLM_F_REQUEST | NLM_F_ACK));
mnl_attr_put_strz(rd->nlh, RDMA_NLDEV_ATTR_DEV_NAME, rd->link_name);
mnl_attr_put_strz(rd->nlh, RDMA_NLDEV_ATTR_LINK_TYPE, rd->link_type);
mnl_attr_put_strz(rd->nlh, RDMA_NLDEV_ATTR_NDEV_NAME, link_netdev);
return rd_sendrecv_msg(rd, seq);
}
static int link_add_type(struct rd *rd)
{
const struct rd_cmd cmds[] = {
{ NULL, link_help},
{ "netdev", link_add_netdev},
{ 0 }
};
if (rd_no_arg(rd)) {
pr_err("Please provide a link type name.\n");
return -EINVAL;
}
rd->link_type = rd_argv(rd);
rd_arg_inc(rd);
return rd_exec_cmd(rd, cmds, "parameter");
}
static int link_add(struct rd *rd)
{
const struct rd_cmd cmds[] = {
{ NULL, link_help},
{ "type", link_add_type},
{ 0 }
};
if (rd_no_arg(rd)) {
pr_err("Please provide a link name to add.\n");
return -EINVAL;
}
rd->link_name = rd_argv(rd);
rd_arg_inc(rd);
return rd_exec_cmd(rd, cmds, "parameter");
}
static int _link_del(struct rd *rd)
{
uint32_t seq;
if (!rd_no_arg(rd)) {
pr_err("Unknown parameter %s\n", rd_argv(rd));
return -EINVAL;
}
rd_prepare_msg(rd, RDMA_NLDEV_CMD_DELLINK, &seq,
(NLM_F_REQUEST | NLM_F_ACK));
mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
return rd_sendrecv_msg(rd, seq);
}
static int link_del(struct rd *rd)
{
return rd_exec_require_dev(rd, _link_del);
}
int cmd_link(struct rd *rd)
{
const struct rd_cmd cmds[] = {
{ NULL, link_show },
{ "add", link_add },
{ "delete", link_del },
{ "show", link_show },
{ "list", link_show },
{ "help", link_help },
{ 0 }
};
return rd_exec_cmd(rd, cmds, "link command");
}