/*
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* link.c RDMA tool
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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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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static int link_help(struct rd *rd)
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{
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pr_out("Usage: %s link show [DEV/PORT_INDEX]\n", rd->filename);
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return 0;
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}
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static const char *caps_to_str(uint32_t idx)
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{
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#define RDMA_PORT_FLAGS(x) \
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x(SM, 1) \
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x(NOTICE, 2) \
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x(TRAP, 3) \
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x(OPT_IPD, 4) \
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x(AUTO_MIGR, 5) \
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x(SL_MAP, 6) \
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x(MKEY_NVRAM, 7) \
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x(PKEY_NVRAM, 8) \
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x(LED_INFO, 9) \
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x(SM_DISABLED, 10) \
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x(SYS_IMAGE_GUIG, 11) \
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x(PKEY_SW_EXT_PORT_TRAP, 12) \
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x(EXTENDED_SPEEDS, 14) \
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x(CM, 16) \
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x(SNMP_TUNNEL, 17) \
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x(REINIT, 18) \
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x(DEVICE_MGMT, 19) \
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x(VENDOR_CLASS, 20) \
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x(DR_NOTICE, 21) \
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x(CAP_MASK_NOTICE, 22) \
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x(BOOT_MGMT, 23) \
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x(LINK_LATENCY, 24) \
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x(CLIENT_REG, 25) \
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x(IP_BASED_GIDS, 26)
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enum { RDMA_PORT_FLAGS(RDMA_BITMAP_ENUM) };
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static const char * const
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rdma_port_names[] = { RDMA_PORT_FLAGS(RDMA_BITMAP_NAMES) };
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#undef RDMA_PORT_FLAGS
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if (idx < ARRAY_SIZE(rdma_port_names) && rdma_port_names[idx])
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return rdma_port_names[idx];
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return "UNKNOWN";
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}
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static void link_print_caps(struct rd *rd, struct nlattr **tb)
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{
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uint64_t caps;
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uint32_t idx;
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if (!tb[RDMA_NLDEV_ATTR_CAP_FLAGS])
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return;
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caps = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_CAP_FLAGS]);
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if (rd->json_output) {
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jsonw_name(rd->jw, "caps");
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jsonw_start_array(rd->jw);
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} else {
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pr_out("\n caps: <");
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}
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for (idx = 0; caps; idx++) {
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if (caps & 0x1) {
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if (rd->json_output) {
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jsonw_string(rd->jw, caps_to_str(idx));
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} else {
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pr_out("%s", caps_to_str(idx));
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if (caps >> 0x1)
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pr_out(", ");
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}
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}
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caps >>= 0x1;
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}
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if (rd->json_output)
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jsonw_end_array(rd->jw);
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else
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pr_out(">");
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}
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static void link_print_subnet_prefix(struct rd *rd, struct nlattr **tb)
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{
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uint64_t subnet_prefix;
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uint16_t vp[4];
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char str[32];
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if (!tb[RDMA_NLDEV_ATTR_SUBNET_PREFIX])
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return;
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subnet_prefix = mnl_attr_get_u64(tb[RDMA_NLDEV_ATTR_SUBNET_PREFIX]);
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memcpy(vp, &subnet_prefix, sizeof(uint64_t));
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snprintf(str, 32, "%04x:%04x:%04x:%04x", vp[3], vp[2], vp[1], vp[0]);
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if (rd->json_output)
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jsonw_string_field(rd->jw, "subnet_prefix", str);
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else
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pr_out("subnet_prefix %s ", str);
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}
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static void link_print_lid(struct rd *rd, struct nlattr **tb)
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{
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uint32_t lid;
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if (!tb[RDMA_NLDEV_ATTR_LID])
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return;
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lid = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_LID]);
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if (rd->json_output)
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jsonw_uint_field(rd->jw, "lid", lid);
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else
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pr_out("lid %u ", lid);
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}
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static void link_print_sm_lid(struct rd *rd, struct nlattr **tb)
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{
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uint32_t sm_lid;
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if (!tb[RDMA_NLDEV_ATTR_SM_LID])
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return;
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sm_lid = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_SM_LID]);
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if (rd->json_output)
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jsonw_uint_field(rd->jw, "sm_lid", sm_lid);
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else
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pr_out("sm_lid %u ", sm_lid);
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}
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static void link_print_lmc(struct rd *rd, struct nlattr **tb)
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{
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uint8_t lmc;
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if (!tb[RDMA_NLDEV_ATTR_LMC])
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return;
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lmc = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_LMC]);
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if (rd->json_output)
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jsonw_uint_field(rd->jw, "lmc", lmc);
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else
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pr_out("lmc %u ", lmc);
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}
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static const char *link_state_to_str(uint8_t link_state)
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{
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static const char * const link_state_str[] = { "NOP", "DOWN",
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"INIT", "ARMED",
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"ACTIVE",
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"ACTIVE_DEFER" };
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if (link_state < ARRAY_SIZE(link_state_str))
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return link_state_str[link_state];
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return "UNKNOWN";
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}
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static void link_print_state(struct rd *rd, struct nlattr **tb)
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{
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uint8_t state;
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if (!tb[RDMA_NLDEV_ATTR_PORT_STATE])
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return;
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state = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_PORT_STATE]);
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if (rd->json_output)
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jsonw_string_field(rd->jw, "state", link_state_to_str(state));
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else
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pr_out("state %s ", link_state_to_str(state));
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}
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static const char *phys_state_to_str(uint8_t phys_state)
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{
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static const char * const phys_state_str[] = { "NOP", "SLEEP",
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"POLLING", "DISABLED",
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"ARMED", "LINK_UP",
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"LINK_ERROR_RECOVER",
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"PHY_TEST", "UNKNOWN",
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"OPA_OFFLINE",
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"UNKNOWN", "OPA_TEST" };
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if (phys_state < ARRAY_SIZE(phys_state_str))
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return phys_state_str[phys_state];
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return "UNKNOWN";
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};
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static void link_print_phys_state(struct rd *rd, struct nlattr **tb)
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{
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uint8_t phys_state;
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if (!tb[RDMA_NLDEV_ATTR_PORT_PHYS_STATE])
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return;
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phys_state = mnl_attr_get_u8(tb[RDMA_NLDEV_ATTR_PORT_PHYS_STATE]);
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if (rd->json_output)
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jsonw_string_field(rd->jw, "physical_state",
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phys_state_to_str(phys_state));
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else
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pr_out("physical_state %s ", phys_state_to_str(phys_state));
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}
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static int link_parse_cb(const struct nlmsghdr *nlh, void *data)
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{
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struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
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struct rd *rd = data;
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uint32_t port, idx;
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char name[32];
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mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
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if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME])
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return MNL_CB_ERROR;
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if (!tb[RDMA_NLDEV_ATTR_PORT_INDEX]) {
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pr_err("This tool doesn't support switches yet\n");
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return MNL_CB_ERROR;
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}
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idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
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port = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_PORT_INDEX]);
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snprintf(name, 32, "%s/%u",
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mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]), port);
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if (rd->json_output) {
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jsonw_uint_field(rd->jw, "ifindex", idx);
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jsonw_uint_field(rd->jw, "port", port);
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jsonw_string_field(rd->jw, "ifname", name);
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} else {
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pr_out("%u/%u: %s: ", idx, port, name);
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}
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link_print_subnet_prefix(rd, tb);
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link_print_lid(rd, tb);
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link_print_sm_lid(rd, tb);
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link_print_lmc(rd, tb);
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link_print_state(rd, tb);
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link_print_phys_state(rd, tb);
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if (rd->show_details)
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link_print_caps(rd, tb);
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if (!rd->json_output)
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pr_out("\n");
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return MNL_CB_OK;
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}
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static int link_no_args(struct rd *rd)
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{
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uint32_t seq;
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int ret;
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rd_prepare_msg(rd, RDMA_NLDEV_CMD_PORT_GET, &seq,
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(NLM_F_REQUEST | NLM_F_ACK));
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mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
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mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_PORT_INDEX, rd->port_idx);
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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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if (rd->json_output)
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jsonw_start_object(rd->jw);
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ret = rd_recv_msg(rd, link_parse_cb, rd, seq);
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if (rd->json_output)
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jsonw_end_object(rd->jw);
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return ret;
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}
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static int link_one_show(struct rd *rd)
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{
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const struct rd_cmd cmds[] = {
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{ NULL, link_no_args},
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{ 0 }
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};
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return rd_exec_cmd(rd, cmds, "parameter");
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}
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static int link_show(struct rd *rd)
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{
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struct dev_map *dev_map;
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uint32_t port;
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int ret = 0;
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if (rd->json_output)
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jsonw_start_array(rd->jw);
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if (rd_no_arg(rd)) {
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list_for_each_entry(dev_map, &rd->dev_map_list, list) {
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rd->dev_idx = dev_map->idx;
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for (port = 1; port < dev_map->num_ports + 1; port++) {
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rd->port_idx = port;
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ret = link_one_show(rd);
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if (ret)
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goto out;
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}
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}
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} else {
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dev_map = dev_map_lookup(rd, true);
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port = get_port_from_argv(rd);
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if (!dev_map || port > dev_map->num_ports) {
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pr_err("Wrong device name\n");
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ret = -ENOENT;
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goto out;
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}
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rd_arg_inc(rd);
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rd->dev_idx = dev_map->idx;
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rd->port_idx = port ? : 1;
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for (; rd->port_idx < dev_map->num_ports + 1; rd->port_idx++) {
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ret = link_one_show(rd);
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if (ret)
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goto out;
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if (port)
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/*
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* We got request to show link for devname
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* with port index.
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*/
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break;
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}
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}
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out:
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if (rd->json_output)
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jsonw_end_array(rd->jw);
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return ret;
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}
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int cmd_link(struct rd *rd)
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{
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const struct rd_cmd cmds[] = {
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{ NULL, link_show },
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{ "show", link_show },
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{ "list", link_show },
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{ "help", link_help },
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{ 0 }
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};
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return rd_exec_cmd(rd, cmds, "link command");
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}
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