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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
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/*
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* res.c RDMA tool
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* Authors: Leon Romanovsky <leonro@mellanox.com>
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*/
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#include "res.h"
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#include <inttypes.h>
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static int res_help(struct rd *rd)
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{
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pr_out("Usage: %s resource\n", rd->filename);
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pr_out(" resource show [DEV]\n");
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pr_out(" resource show [qp|cm_id|pd|mr|cq]\n");
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pr_out(" resource show qp link [DEV/PORT]\n");
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pr_out(" resource show qp link [DEV/PORT] [FILTER-NAME FILTER-VALUE]\n");
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pr_out(" resource show cm_id link [DEV/PORT]\n");
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pr_out(" resource show cm_id link [DEV/PORT] [FILTER-NAME FILTER-VALUE]\n");
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pr_out(" resource show cq link [DEV/PORT]\n");
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pr_out(" resource show cq link [DEV/PORT] [FILTER-NAME FILTER-VALUE]\n");
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pr_out(" resource show pd dev [DEV]\n");
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pr_out(" resource show pd dev [DEV] [FILTER-NAME FILTER-VALUE]\n");
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pr_out(" resource show mr dev [DEV]\n");
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pr_out(" resource show mr dev [DEV] [FILTER-NAME FILTER-VALUE]\n");
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return 0;
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}
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static int res_print_summary(struct rd *rd, struct nlattr **tb)
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{
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struct nlattr *nla_table = tb[RDMA_NLDEV_ATTR_RES_SUMMARY];
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struct nlattr *nla_entry;
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const char *name;
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uint64_t curr;
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int err;
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mnl_attr_for_each_nested(nla_entry, nla_table) {
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struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
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err = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
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if (err != MNL_CB_OK)
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return -EINVAL;
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if (!nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_NAME] ||
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!nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR]) {
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return -EINVAL;
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}
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name = mnl_attr_get_str(nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_NAME]);
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curr = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR]);
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res_print_uint(
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rd, name, curr,
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nla_line[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR]);
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}
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return 0;
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}
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static int res_no_args_idx_parse_cb(const struct nlmsghdr *nlh, void *data)
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{
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return MNL_CB_OK;
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}
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static int res_no_args_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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const char *name;
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uint32_t idx;
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mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
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if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] ||
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!tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
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!tb[RDMA_NLDEV_ATTR_RES_SUMMARY])
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return MNL_CB_ERROR;
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idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
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name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
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if (rd->json_output) {
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jsonw_uint_field(rd->jw, "ifindex", idx);
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jsonw_string_field(rd->jw, "ifname", name);
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} else {
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pr_out("%u: %s: ", idx, name);
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}
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res_print_summary(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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int _res_send_idx_msg(struct rd *rd, uint32_t command, mnl_cb_t callback,
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uint32_t idx, uint32_t id)
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{
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uint32_t flags = NLM_F_REQUEST | NLM_F_ACK;
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uint32_t seq;
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int ret;
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rd_prepare_msg(rd, command, &seq, flags);
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mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
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if (rd->port_idx)
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mnl_attr_put_u32(rd->nlh,
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RDMA_NLDEV_ATTR_PORT_INDEX, rd->port_idx);
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mnl_attr_put_u32(rd->nlh, id, 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, callback, 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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int _res_send_msg(struct rd *rd, uint32_t command, mnl_cb_t callback)
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{
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uint32_t flags = NLM_F_REQUEST | NLM_F_ACK;
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uint32_t seq;
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int ret;
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if (command != RDMA_NLDEV_CMD_RES_GET)
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flags |= NLM_F_DUMP;
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rd_prepare_msg(rd, command, &seq, flags);
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mnl_attr_put_u32(rd->nlh, RDMA_NLDEV_ATTR_DEV_INDEX, rd->dev_idx);
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if (rd->port_idx)
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mnl_attr_put_u32(rd->nlh,
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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, callback, 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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const char *qp_types_to_str(uint8_t idx)
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{
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static const char * const qp_types_str[] = { "SMI", "GSI", "RC",
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"UC", "UD", "RAW_IPV6",
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"RAW_ETHERTYPE",
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"UNKNOWN", "RAW_PACKET",
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"XRC_INI", "XRC_TGT" };
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if (idx < ARRAY_SIZE(qp_types_str))
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return qp_types_str[idx];
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return "UNKNOWN";
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}
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void print_comm(struct rd *rd, const char *str, struct nlattr **nla_line)
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{
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char tmp[18];
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if (!str)
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return;
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if (rd->json_output) {
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/* Don't beatify output in JSON format */
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jsonw_string_field(rd->jw, "comm", str);
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return;
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}
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if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
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snprintf(tmp, sizeof(tmp), "%s", str);
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else
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snprintf(tmp, sizeof(tmp), "[%s]", str);
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pr_out("comm %s ", tmp);
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}
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void print_dev(struct rd *rd, uint32_t idx, const char *name)
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{
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if (rd->json_output) {
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jsonw_uint_field(rd->jw, "ifindex", idx);
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jsonw_string_field(rd->jw, "ifname", name);
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} else {
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pr_out("dev %s ", name);
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}
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}
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void print_link(struct rd *rd, uint32_t idx, const char *name, uint32_t port,
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struct nlattr **nla_line)
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{
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if (rd->json_output) {
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jsonw_uint_field(rd->jw, "ifindex", idx);
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if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
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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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if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
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pr_out("link %s/%u ", name, port);
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else
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pr_out("link %s/- ", name);
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}
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}
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char *get_task_name(uint32_t pid)
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{
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char *comm;
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FILE *f;
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if (asprintf(&comm, "/proc/%d/comm", pid) < 0)
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return NULL;
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f = fopen(comm, "r");
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free(comm);
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if (!f)
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return NULL;
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if (fscanf(f, "%ms\n", &comm) != 1)
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comm = NULL;
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fclose(f);
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return comm;
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}
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void print_key(struct rd *rd, const char *name, uint64_t val,
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struct nlattr *nlattr)
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{
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if (!nlattr)
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return;
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if (rd->json_output)
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jsonw_xint_field(rd->jw, name, val);
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else
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pr_out("%s 0x%" PRIx64 " ", name, val);
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}
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void res_print_uint(struct rd *rd, const char *name, uint64_t val,
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struct nlattr *nlattr)
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{
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if (!nlattr)
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return;
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if (rd->json_output)
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jsonw_u64_field(rd->jw, name, val);
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else
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pr_out("%s %" PRIu64 " ", name, val);
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}
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RES_FUNC(res_no_args, RDMA_NLDEV_CMD_RES_GET, NULL, true, 0);
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static int res_show(struct rd *rd)
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{
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const struct rd_cmd cmds[] = {
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{ NULL, res_no_args },
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{ "qp", res_qp },
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{ "cm_id", res_cm_id },
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{ "cq", res_cq },
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{ "mr", res_mr },
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{ "pd", res_pd },
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{ 0 }
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};
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/*
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* Special case to support "rdma res show DEV_NAME"
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*/
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if (rd_argc(rd) == 1 && dev_map_lookup(rd, false))
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return rd_exec_dev(rd, _res_no_args);
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return rd_exec_cmd(rd, cmds, "parameter");
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}
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int cmd_res(struct rd *rd)
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{
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const struct rd_cmd cmds[] = {
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{ NULL, res_show },
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Packit |
d3f73b |
{ "show", res_show },
|
|
Packit |
d3f73b |
{ "list", res_show },
|
|
Packit |
d3f73b |
{ "help", res_help },
|
|
Packit |
d3f73b |
{ 0 }
|
|
Packit |
d3f73b |
};
|
|
Packit |
d3f73b |
|
|
Packit |
d3f73b |
return rd_exec_cmd(rd, cmds, "resource command");
|
|
Packit |
d3f73b |
}
|