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             (!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
  95              !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
  96                 return MNL_CB_ERROR;
  97         }
  98
  99         if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
 100                 port = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_PORT_INDEX]);
 101
 102         if (port != rd->port_idx)
 103                 goto out;
 104
 105         lqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LQPN]);
 106         if (rd_is_filtered_attr(rd, "lqpn", lqpn,
 107                                 nla_line[RDMA_NLDEV_ATTR_RES_LQPN]))
 108                 goto out;
 109
 110         if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
 111                 pdn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
 112         if (rd_is_filtered_attr(rd, "pdn", pdn,
 113                                 nla_line[RDMA_NLDEV_ATTR_RES_PDN]))
 114                 goto out;
 115
 116         if (nla_line[RDMA_NLDEV_ATTR_RES_RQPN])
 117                 rqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RQPN]);
 118         if (rd_is_filtered_attr(rd, "rqpn", rqpn,
 119                                 nla_line[RDMA_NLDEV_ATTR_RES_RQPN]))
 120                 goto out;
 121
 122         if (nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN])
 123                 rq_psn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]);
 124         if (rd_is_filtered_attr(rd, "rq-psn", rq_psn,
 125                                 nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]))
 126                 goto out;
 127
 128         sq_psn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN]);
 129         if (rd_is_filtered_attr(rd, "sq-psn", sq_psn,
 130                                 nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN]))
 131                 goto out;
 132
 133         if (nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE])
 134                 path_mig_state = mnl_attr_get_u8(
 135                         nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]);
 136         if (rd_is_string_filtered_attr(
 137                     rd, "path-mig-state", path_mig_to_str(path_mig_state),
 138                     nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]))
 139                 goto out;
 140
 141         type = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_TYPE]);
 142         if (rd_is_string_filtered_attr(rd, "type", qp_types_to_str(type),
 143                                        nla_line[RDMA_NLDEV_ATTR_RES_TYPE]))
 144                 goto out;
 145
 146         state = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_STATE]);
 147         if (rd_is_string_filtered_attr(rd, "state", qp_states_to_str(state),
 148                                        nla_line[RDMA_NLDEV_ATTR_RES_STATE]))
 149                 goto out;
 150
 151         if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
 152                 pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]);
 153                 comm = get_task_name(pid);
 154         }
 155
 156         if (rd_is_filtered_attr(rd, "pid", pid,
 157                                 nla_line[RDMA_NLDEV_ATTR_RES_PID]))
 158                 goto out;
 159
 160         if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
 161                 /* discard const from mnl_attr_get_str */
 162                 comm = (char *)mnl_attr_get_str(
 163                         nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]);
 164
 165         if (rd->json_output)
 166                 jsonw_start_array(rd->jw);
 167
 168         print_link(rd, idx, name, port, nla_line);
 169
 170         res_print_uint(rd, "lqpn", lqpn, nla_line[RDMA_NLDEV_ATTR_RES_LQPN]);
 171         print_rqpn(rd, rqpn, nla_line);
 172
 173         print_type(rd, type);
 174         print_state(rd, state);
 175
 176         print_rqpsn(rd, rq_psn, nla_line);
 177         res_print_uint(rd, "sq-psn", sq_psn,
 178                        nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN]);
 179
 180         print_pathmig(rd, path_mig_state, nla_line);
 181         res_print_uint(rd, "pdn", pdn, nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
 182         res_print_uint(rd, "pid", pid, nla_line[RDMA_NLDEV_ATTR_RES_PID]);
 183         print_comm(rd, comm, nla_line);
 184
 185         print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
 186         newline(rd);
 187 out:
 188         if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
 189                 free(comm);
 190         return MNL_CB_OK;
 191 }
 192
 193 int res_qp_idx_parse_cb(const struct nlmsghdr *nlh, void *data)
 194 {
 195         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
 196         struct rd *rd = data;
 197         const char *name;
 198         uint32_t idx;
 199
 200         mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
 201         if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME])
 202                 return MNL_CB_ERROR;
 203
 204         name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 205         idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 206
 207         return res_qp_line(rd, name, idx, tb);
 208 }
 209
 210 int res_qp_parse_cb(const struct nlmsghdr *nlh, void *data)
 211 {
 212         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
 213         struct nlattr *nla_table, *nla_entry;
 214         struct rd *rd = data;
 215         int ret = MNL_CB_OK;
 216         const char *name;
 217         uint32_t idx;
 218
 219         mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
 220         if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
 221             !tb[RDMA_NLDEV_ATTR_RES_QP])
 222                 return MNL_CB_ERROR;
 223
 224         name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 225         idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 226         nla_table = tb[RDMA_NLDEV_ATTR_RES_QP];
 227
 228         mnl_attr_for_each_nested(nla_entry, nla_table) {
 229                 struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
 230
 231                 ret = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
 232                 if (ret != MNL_CB_OK)
 233                         break;
 234
 235                 ret = res_qp_line(rd, name, idx, nla_line);
 236                 if (ret != MNL_CB_OK)
 237                         break;
 238         }
 239         return ret;
 240 }