diff options
Diffstat (limited to '')
| -rw-r--r-- | rdma/link.c | 382 |
1 files changed, 382 insertions, 0 deletions
diff --git a/rdma/link.c b/rdma/link.c new file mode 100644 index 0000000..8531817 --- /dev/null +++ b/rdma/link.c @@ -0,0 +1,382 @@ +// 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 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_string(PRINT_FP, NULL, "%s caps: <", _SL_); + open_json_array(PRINT_JSON, "caps"); + for (idx = 0; caps; idx++) { + if (caps & 0x1) + print_string(PRINT_ANY, NULL, + caps >> 0x1 ? "%s, " : "%s", + caps_to_str(idx)); + caps >>= 0x1; + } + close_json_array(PRINT_ANY, ">"); +} + +static void link_print_subnet_prefix(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_string(PRINT_ANY, "subnet_prefix", "subnet_prefix %s ", str); +} + +static void link_print_lid(struct nlattr **tb) +{ + uint32_t lid; + + if (!tb[RDMA_NLDEV_ATTR_LID]) + return; + + lid = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_LID]); + print_uint(PRINT_ANY, "lid", "lid %u ", lid); +} + +static void link_print_sm_lid(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_uint(PRINT_ANY, "sm_lid", "sm_lid %u ", sm_lid); +} + +static void link_print_lmc(struct nlattr **tb) +{ + uint8_t lmc; + + if (!tb[RDMA_NLDEV_ATTR_LMC]) + return; + + lmc = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_LMC]); + print_uint(PRINT_ANY, "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 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_string(PRINT_ANY, "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 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_string(PRINT_ANY, "physical_state", "physical_state %s ", + phys_state_to_str(phys_state)); +} + +static void link_print_netdev(const 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_string(PRINT_ANY, "netdev", "netdev %s ", netdev_name); + print_uint(PRINT_ANY, "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_uint(PRINT_JSON, "ifindex", NULL, idx); + print_string(PRINT_ANY, "ifname", "link %s/", name); + print_uint(PRINT_ANY, "port", "%u ", port); + link_print_subnet_prefix(tb); + link_print_lid(tb); + link_print_sm_lid(tb); + link_print_lmc(tb); + link_print_state(tb); + link_print_phys_state(tb); + link_print_netdev(rd, tb); + if (rd->show_details) + link_print_caps(tb); + + close_json_object(); + newline(); + + 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"); +} |