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_pathmig(struct rd *rd, uint32_t val, struct nlattr **nla_line)
  70 {
  71         if (!nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE])
  72                 return;
  73
  74         if (rd->json_output)
  75                 jsonw_string_field(rd->jw, "path-mig-state",
  76                                    path_mig_to_str(val));
  77         else
  78                 pr_out("path-mig-state %s ", path_mig_to_str(val));
  79 }
  80
  81 static int res_qp_line(struct rd *rd, const char *name, int idx,
  82                        struct nlattr **nla_line)
  83 {
  84         uint32_t lqpn, rqpn = 0, rq_psn = 0, sq_psn;
  85         uint8_t type, state, path_mig_state = 0;
  86         uint32_t port = 0, pid = 0;
  87         uint32_t pdn = 0;
  88         char *comm = NULL;
  89
  90         if (!nla_line[RDMA_NLDEV_ATTR_RES_LQPN] ||
  91             !nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN] ||
  92             !nla_line[RDMA_NLDEV_ATTR_RES_TYPE] ||
  93             !nla_line[RDMA_NLDEV_ATTR_RES_STATE])
  94                 return MNL_CB_ERROR;
  95
  96         if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
  97                 port = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_PORT_INDEX]);
  98
  99         if (port != rd->port_idx)
 100                 goto out;
 101
 102         lqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LQPN]);
 103         if (rd_is_filtered_attr(rd, "lqpn", lqpn,
 104                                 nla_line[RDMA_NLDEV_ATTR_RES_LQPN]))
 105                 goto out;
 106
 107         if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
 108                 pdn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
 109         if (rd_is_filtered_attr(rd, "pdn", pdn,
 110                                 nla_line[RDMA_NLDEV_ATTR_RES_PDN]))
 111                 goto out;
 112
 113         if (nla_line[RDMA_NLDEV_ATTR_RES_RQPN])
 114                 rqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RQPN]);
 115         if (rd_is_filtered_attr(rd, "rqpn", rqpn,
 116                                 nla_line[RDMA_NLDEV_ATTR_RES_RQPN]))
 117                 goto out;
 118
 119         if (nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN])
 120                 rq_psn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]);
 121         if (rd_is_filtered_attr(rd, "rq-psn", rq_psn,
 122                                 nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]))
 123                 goto out;
 124
 125         sq_psn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN]);
 126         if (rd_is_filtered_attr(rd, "sq-psn", sq_psn,
 127                                 nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN]))
 128                 goto out;
 129
 130         if (nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE])
 131                 path_mig_state = mnl_attr_get_u8(
 132                         nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]);
 133         if (rd_is_string_filtered_attr(
 134                     rd, "path-mig-state", path_mig_to_str(path_mig_state),
 135                     nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]))
 136                 goto out;
 137
 138         type = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_TYPE]);
 139         if (rd_is_string_filtered_attr(rd, "type", qp_types_to_str(type),
 140                                        nla_line[RDMA_NLDEV_ATTR_RES_TYPE]))
 141                 goto out;
 142
 143         state = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_STATE]);
 144         if (rd_is_string_filtered_attr(rd, "state", qp_states_to_str(state),
 145                                        nla_line[RDMA_NLDEV_ATTR_RES_STATE]))
 146                 goto out;
 147
 148         if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
 149                 pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]);
 150                 comm = get_task_name(pid);
 151         }
 152
 153         if (rd_is_filtered_attr(rd, "pid", pid,
 154                                 nla_line[RDMA_NLDEV_ATTR_RES_PID]))
 155                 goto out;
 156
 157         if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
 158                 /* discard const from mnl_attr_get_str */
 159                 comm = (char *)mnl_attr_get_str(
 160                         nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]);
 161
 162         if (rd->json_output)
 163                 jsonw_start_array(rd->jw);
 164
 165         print_link(rd, idx, name, port, nla_line);
 166
 167         res_print_uint(rd, "lqpn", lqpn, nla_line[RDMA_NLDEV_ATTR_RES_LQPN]);
 168         print_rqpn(rd, rqpn, nla_line);
 169
 170         print_type(rd, type);
 171         print_state(rd, state);
 172
 173         print_rqpsn(rd, rq_psn, nla_line);
 174         res_print_uint(rd, "sq-psn", sq_psn,
 175                        nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN]);
 176
 177         print_pathmig(rd, path_mig_state, nla_line);
 178         res_print_uint(rd, "pdn", pdn, nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
 179         res_print_uint(rd, "pid", pid, nla_line[RDMA_NLDEV_ATTR_RES_PID]);
 180         print_comm(rd, comm, nla_line);
 181
 182         print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
 183         newline(rd);
 184 out:
 185         if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
 186                 free(comm);
 187         return MNL_CB_OK;
 188 }
 189
 190 int res_qp_idx_parse_cb(const struct nlmsghdr *nlh, void *data)
 191 {
 192         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
 193         struct rd *rd = data;
 194         const char *name;
 195         uint32_t idx;
 196
 197         mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
 198         if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME])
 199                 return MNL_CB_ERROR;
 200
 201         name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 202         idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 203
 204         return res_qp_line(rd, name, idx, tb);
 205 }
 206
 207 int res_qp_parse_cb(const struct nlmsghdr *nlh, void *data)
 208 {
 209         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
 210         struct nlattr *nla_table, *nla_entry;
 211         struct rd *rd = data;
 212         int ret = MNL_CB_OK;
 213         const char *name;
 214         uint32_t idx;
 215
 216         mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
 217         if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
 218             !tb[RDMA_NLDEV_ATTR_RES_QP])
 219                 return MNL_CB_ERROR;
 220
 221         name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 222         idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 223         nla_table = tb[RDMA_NLDEV_ATTR_RES_QP];
 224
 225         mnl_attr_for_each_nested(nla_entry, nla_table) {
 226                 struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
 227
 228                 ret = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
 229                 if (ret != MNL_CB_OK)
 230                         break;
 231
 232                 ret = res_qp_line(rd, name, idx, nla_line);
 233                 if (ret != MNL_CB_OK)
 234                         break;
 235         }
 236         return ret;
 237 }