/*
* link.c RDMA tool
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* 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);
return 0;
}
static const char *caps_to_str(uint32_t idx)
{
#define RDMA_PORT_FLAGS(x) \
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_GUIG, 11) \
x(PKEY_SW_EXT_PORT_TRAP, 12) \
x(EXTENDED_SPEEDS, 14) \
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(IP_BASED_GIDS, 26)
enum { RDMA_PORT_FLAGS(RDMA_BITMAP_ENUM) };
static const char * const
rdma_port_names[] = { RDMA_PORT_FLAGS(RDMA_BITMAP_NAMES) };
#undef RDMA_PORT_FLAGS
if (idx < ARRAY_SIZE(rdma_port_names) && rdma_port_names[idx])
return rdma_port_names[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]);
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, caps_to_str(idx));
} else {
pr_out("%s", 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 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]);
if (rd->json_output)
jsonw_string_field(rd->jw, "subnet_prefix", str);
else
pr_out("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]);
if (rd->json_output)
jsonw_uint_field(rd->jw, "lid", lid);
else
pr_out("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]);
if (rd->json_output)
jsonw_uint_field(rd->jw, "sm_lid", sm_lid);
else
pr_out("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]);
if (rd->json_output)
jsonw_uint_field(rd->jw, "lmc", lmc);
else
pr_out("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]);
if (rd->json_output)
jsonw_string_field(rd->jw, "state", link_state_to_str(state));
else
pr_out("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]);
if (rd->json_output)
jsonw_string_field(rd->jw, "physical_state",
phys_state_to_str(phys_state));
else
pr_out("physical_state %s ", phys_state_to_str(phys_state));
}
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;
char name[32];
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]);
snprintf(name, 32, "%s/%u",
mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]), port);
if (rd->json_output) {
jsonw_uint_field(rd->jw, "ifindex", idx);
jsonw_uint_field(rd->jw, "port", port);
jsonw_string_field(rd->jw, "ifname", name);
} else {
pr_out("%u/%u: %s: ", idx, port, name);
}
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);
if (rd->show_details)
link_print_caps(rd, tb);
if (!rd->json_output)
pr_out("\n");
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;
if (rd->json_output)
jsonw_start_object(rd->jw);
ret = rd_recv_msg(rd, link_parse_cb, rd, seq);
if (rd->json_output)
jsonw_end_object(rd->jw);
return ret;
}
static int link_one_show(struct rd *rd)
{
const struct rd_cmd cmds[] = {
{ NULL, link_no_args},
{ 0 }
};
return rd_exec_cmd(rd, cmds, "parameter");
}
static int link_show(struct rd *rd)
{
struct dev_map *dev_map;
uint32_t port;
int ret = 0;
if (rd->json_output)
jsonw_start_array(rd->jw);
if (rd_no_arg(rd)) {
list_for_each_entry(dev_map, &rd->dev_map_list, list) {
rd->dev_idx = dev_map->idx;
for (port = 1; port < dev_map->num_ports + 1; port++) {
rd->port_idx = port;
ret = link_one_show(rd);
if (ret)
goto out;
}
}
} else {
dev_map = dev_map_lookup(rd, true);
port = get_port_from_argv(rd);
if (!dev_map || port > dev_map->num_ports) {
pr_err("Wrong device name\n");
ret = -ENOENT;
goto out;
}
rd_arg_inc(rd);
rd->dev_idx = dev_map->idx;
rd->port_idx = port ? : 1;
for (; rd->port_idx < dev_map->num_ports + 1; rd->port_idx++) {
ret = link_one_show(rd);
if (ret)
goto out;
if (port)
/*
* We got request to show link for devname
* with port index.
*/
break;
}
}
out:
if (rd->json_output)
jsonw_end_array(rd->jw);
return ret;
}
int cmd_link(struct rd *rd)
{
const struct rd_cmd cmds[] = {
{ NULL, link_show },
{ "show", link_show },
{ "list", link_show },
{ "help", link_help },
{ 0 }
};
return rd_exec_cmd(rd, cmds, "link command");
}