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