rdma/res-qp.c

   1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
   2 /*
   3  * res-qp.c     RDMA tool
   4  * Authors:     Leon Romanovsky <leonro@mellanox.com>
   5  */
   6
   7 #include "res.h"
   8 #include <inttypes.h>
   9
  10 static const char *path_mig_to_str(uint8_t idx)
  11 {
  12         static const char *const path_mig_str[] = { "MIGRATED", "REARM",
  13                                                     "ARMED" };
  14
  15         if (idx < ARRAY_SIZE(path_mig_str))
  16                 return path_mig_str[idx];
  17         return "UNKNOWN";
  18 }
  19
  20 static const char *qp_states_to_str(uint8_t idx)
  21 {
  22         static const char *const qp_states_str[] = { "RESET", "INIT", "RTR",
  23                                                      "RTS",   "SQD",  "SQE",
  24                                                      "ERR" };
  25
  26         if (idx < ARRAY_SIZE(qp_states_str))
  27                 return qp_states_str[idx];
  28         return "UNKNOWN";
  29 }
  30
  31 static void print_rqpn(struct rd *rd, uint32_t val, struct nlattr **nla_line)
  32 {
  33         if (!nla_line[RDMA_NLDEV_ATTR_RES_RQPN])
  34                 return;
  35
  36         if (rd->json_output)
  37                 jsonw_uint_field(rd->jw, "rqpn", val);
  38         else
  39                 pr_out("rqpn %u ", val);
  40 }
  41
  42 static void print_type(struct rd *rd, uint32_t val)
  43 {
  44         if (rd->json_output)
  45                 jsonw_string_field(rd->jw, "type", qp_types_to_str(val));
  46         else
  47                 pr_out("type %s ", qp_types_to_str(val));
  48 }
  49
  50 static void print_state(struct rd *rd, uint32_t val)
  51 {
  52         if (rd->json_output)
  53                 jsonw_string_field(rd->jw, "state", qp_states_to_str(val));
  54         else
  55                 pr_out("state %s ", qp_states_to_str(val));
  56 }
  57
  58 static void print_rqpsn(struct rd *rd, uint32_t val, struct nlattr **nla_line)
  59 {
  60         if (!nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN])
  61                 return;
  62
  63         if (rd->json_output)
  64                 jsonw_uint_field(rd->jw, "rq-psn", val);
  65         else
  66                 pr_out("rq-psn %u ", val);
  67 }
  68
  69 static void print_sqpsn(struct rd *rd, uint32_t val)
  70 {
  71         if (rd->json_output)
  72                 jsonw_uint_field(rd->jw, "sq-psn", val);
  73         else
  74                 pr_out("sq-psn %u ", val);
  75 }
  76
  77 static void print_pathmig(struct rd *rd, uint32_t val, struct nlattr **nla_line)
  78 {
  79         if (!nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE])
  80                 return;
  81
  82         if (rd->json_output)
  83                 jsonw_string_field(rd->jw, "path-mig-state",
  84                                    path_mig_to_str(val));
  85         else
  86                 pr_out("path-mig-state %s ", path_mig_to_str(val));
  87 }
  88
  89 int res_qp_parse_cb(const struct nlmsghdr *nlh, void *data)
  90 {
  91         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
  92         struct nlattr *nla_table, *nla_entry;
  93         struct rd *rd = data;
  94         const char *name;
  95         uint32_t idx;
  96
  97         mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
  98         if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
  99             !tb[RDMA_NLDEV_ATTR_RES_QP])
 100                 return MNL_CB_ERROR;
 101
 102         name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 103         idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 104         nla_table = tb[RDMA_NLDEV_ATTR_RES_QP];
 105
 106         mnl_attr_for_each_nested(nla_entry, nla_table) {
 107                 struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
 108                 uint32_t lqpn, rqpn = 0, rq_psn = 0, sq_psn;
 109                 uint8_t type, state, path_mig_state = 0;
 110                 uint32_t port = 0, pid = 0;
 111                 uint32_t pdn = 0;
 112                 char *comm = NULL;
 113                 int err;
 114
 115                 err = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
 116                 if (err != MNL_CB_OK)
 117                         return MNL_CB_ERROR;
 118
 119                 if (!nla_line[RDMA_NLDEV_ATTR_RES_LQPN] ||
 120                     !nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN] ||
 121                     !nla_line[RDMA_NLDEV_ATTR_RES_TYPE] ||
 122                     !nla_line[RDMA_NLDEV_ATTR_RES_STATE] ||
 123                     (!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
 124                      !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
 125                         return MNL_CB_ERROR;
 126                 }
 127
 128                 if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
 129                         port = mnl_attr_get_u32(
 130                                 nla_line[RDMA_NLDEV_ATTR_PORT_INDEX]);
 131
 132                 if (port != rd->port_idx)
 133                         continue;
 134
 135                 lqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LQPN]);
 136                 if (rd_check_is_filtered(rd, "lqpn", lqpn))
 137                         continue;
 138
 139                 if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
 140                         pdn = mnl_attr_get_u32(
 141                                 nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
 142                 if (rd_check_is_filtered(rd, "pdn", pdn))
 143                         continue;
 144
 145                 if (nla_line[RDMA_NLDEV_ATTR_RES_RQPN]) {
 146                         rqpn = mnl_attr_get_u32(
 147                                 nla_line[RDMA_NLDEV_ATTR_RES_RQPN]);
 148                         if (rd_check_is_filtered(rd, "rqpn", rqpn))
 149                                 continue;
 150                 } else {
 151                         if (rd_check_is_key_exist(rd, "rqpn"))
 152                                 continue;
 153                 }
 154
 155                 if (nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]) {
 156                         rq_psn = mnl_attr_get_u32(
 157                                 nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]);
 158                         if (rd_check_is_filtered(rd, "rq-psn", rq_psn))
 159                                 continue;
 160                 } else {
 161                         if (rd_check_is_key_exist(rd, "rq-psn"))
 162                                 continue;
 163                 }
 164
 165                 sq_psn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN]);
 166                 if (rd_check_is_filtered(rd, "sq-psn", sq_psn))
 167                         continue;
 168
 169                 if (nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]) {
 170                         path_mig_state = mnl_attr_get_u8(
 171                                 nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]);
 172                         if (rd_check_is_string_filtered(
 173                                     rd, "path-mig-state",
 174                                     path_mig_to_str(path_mig_state)))
 175                                 continue;
 176                 } else {
 177                         if (rd_check_is_key_exist(rd, "path-mig-state"))
 178                                 continue;
 179                 }
 180
 181                 type = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_TYPE]);
 182                 if (rd_check_is_string_filtered(rd, "type",
 183                                                 qp_types_to_str(type)))
 184                         continue;
 185
 186                 state = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_STATE]);
 187                 if (rd_check_is_string_filtered(rd, "state",
 188                                                 qp_states_to_str(state)))
 189                         continue;
 190
 191                 if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
 192                         pid = mnl_attr_get_u32(
 193                                 nla_line[RDMA_NLDEV_ATTR_RES_PID]);
 194                         comm = get_task_name(pid);
 195                 }
 196
 197                 if (rd_check_is_filtered(rd, "pid", pid)) {
 198                         free(comm);
 199                         continue;
 200                 }
 201
 202                 if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
 203                         /* discard const from mnl_attr_get_str */
 204                         comm = (char *)mnl_attr_get_str(
 205                                 nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]);
 206
 207                 if (rd->json_output)
 208                         jsonw_start_array(rd->jw);
 209
 210                 print_link(rd, idx, name, port, nla_line);
 211
 212                 print_lqpn(rd, lqpn);
 213                 if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
 214                         res_print_uint(rd, "pdn", pdn);
 215                 print_rqpn(rd, rqpn, nla_line);
 216
 217                 print_type(rd, type);
 218                 print_state(rd, state);
 219
 220                 print_rqpsn(rd, rq_psn, nla_line);
 221                 print_sqpsn(rd, sq_psn);
 222
 223                 print_pathmig(rd, path_mig_state, nla_line);
 224                 print_pid(rd, pid);
 225                 print_comm(rd, comm, nla_line);
 226
 227                 if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
 228                         free(comm);
 229
 230                 print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
 231                 newline(rd);
 232         }
 233         return MNL_CB_OK;
 234 }