rdma/res-cq.c

   1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
   2 /*
   3  * res-cq.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 *poll_ctx_to_str(uint8_t idx)
  11 {
  12         static const char * const cm_id_states_str[] = {
  13                 "DIRECT", "SOFTIRQ", "WORKQUEUE", "UNBOUND_WORKQUEUE"};
  14
  15         if (idx < ARRAY_SIZE(cm_id_states_str))
  16                 return cm_id_states_str[idx];
  17         return "UNKNOWN";
  18 }
  19
  20 static void print_poll_ctx(struct rd *rd, uint8_t poll_ctx, struct nlattr *attr)
  21 {
  22         if (!attr)
  23                 return;
  24         print_color_string(PRINT_ANY, COLOR_NONE, "poll-ctx", "poll-ctx %s ",
  25                            poll_ctx_to_str(poll_ctx));
  26 }
  27
  28 static void print_cq_dim_setting(struct rd *rd, struct nlattr *attr)
  29 {
  30         uint8_t dim_setting;
  31
  32         if (!attr)
  33                 return;
  34
  35         dim_setting = mnl_attr_get_u8(attr);
  36         if (dim_setting > 1)
  37                 return;
  38
  39         print_on_off(rd, "adaptive-moderation", dim_setting);
  40 }
  41
  42 static int res_cq_line_raw(struct rd *rd, const char *name, int idx,
  43                            struct nlattr **nla_line)
  44 {
  45         if (!nla_line[RDMA_NLDEV_ATTR_RES_RAW])
  46                 return MNL_CB_ERROR;
  47
  48         open_json_object(NULL);
  49         print_dev(rd, idx, name);
  50         print_raw_data(rd, nla_line);
  51         newline(rd);
  52
  53         return MNL_CB_OK;
  54 }
  55
  56 static int res_cq_line(struct rd *rd, const char *name, int idx,
  57                        struct nlattr **nla_line)
  58 {
  59         char *comm = NULL;
  60         uint32_t pid = 0;
  61         uint8_t poll_ctx = 0;
  62         uint32_t ctxn = 0;
  63         uint32_t cqn = 0;
  64         uint64_t users;
  65         uint32_t cqe;
  66
  67         if (!nla_line[RDMA_NLDEV_ATTR_RES_CQE] ||
  68             !nla_line[RDMA_NLDEV_ATTR_RES_USECNT])
  69                 return MNL_CB_ERROR;
  70
  71         cqe = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CQE]);
  72
  73         users = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_USECNT]);
  74         if (rd_is_filtered_attr(rd, "users", users,
  75                                 nla_line[RDMA_NLDEV_ATTR_RES_USECNT]))
  76                 goto out;
  77
  78         if (nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX])
  79                 poll_ctx =
  80                         mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]);
  81         if (rd_is_string_filtered_attr(rd, "poll-ctx",
  82                                        poll_ctx_to_str(poll_ctx),
  83                                        nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]))
  84                 goto out;
  85
  86         if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
  87                 pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]);
  88                 comm = get_task_name(pid);
  89         }
  90
  91         if (rd_is_filtered_attr(rd, "pid", pid,
  92                                 nla_line[RDMA_NLDEV_ATTR_RES_PID]))
  93                 goto out;
  94
  95         if (nla_line[RDMA_NLDEV_ATTR_RES_CQN])
  96                 cqn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CQN]);
  97         if (rd_is_filtered_attr(rd, "cqn", cqn,
  98                                 nla_line[RDMA_NLDEV_ATTR_RES_CQN]))
  99                 goto out;
 100         if (nla_line[RDMA_NLDEV_ATTR_RES_CTXN])
 101                 ctxn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
 102         if (rd_is_filtered_attr(rd, "ctxn", ctxn,
 103                                 nla_line[RDMA_NLDEV_ATTR_RES_CTXN]))
 104                 goto out;
 105
 106         if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
 107                 /* discard const from mnl_attr_get_str */
 108                 comm = (char *)mnl_attr_get_str(
 109                         nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]);
 110
 111         open_json_object(NULL);
 112         print_dev(rd, idx, name);
 113         res_print_uint(rd, "cqn", cqn, nla_line[RDMA_NLDEV_ATTR_RES_CQN]);
 114         res_print_uint(rd, "cqe", cqe, nla_line[RDMA_NLDEV_ATTR_RES_CQE]);
 115         res_print_uint(rd, "users", users,
 116                        nla_line[RDMA_NLDEV_ATTR_RES_USECNT]);
 117         print_poll_ctx(rd, poll_ctx, nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]);
 118         print_cq_dim_setting(rd, nla_line[RDMA_NLDEV_ATTR_DEV_DIM]);
 119         res_print_uint(rd, "ctxn", ctxn, nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
 120         res_print_uint(rd, "pid", pid, nla_line[RDMA_NLDEV_ATTR_RES_PID]);
 121         print_comm(rd, comm, nla_line);
 122
 123         print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
 124         newline(rd);
 125
 126 out:    if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
 127                 free(comm);
 128         return MNL_CB_OK;
 129 }
 130
 131 int res_cq_idx_parse_cb(const struct nlmsghdr *nlh, void *data)
 132 {
 133         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
 134         struct rd *rd = data;
 135         const char *name;
 136         uint32_t idx;
 137
 138         mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
 139         if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME])
 140                 return MNL_CB_ERROR;
 141
 142         name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 143         idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 144
 145         return (rd->show_raw) ? res_cq_line_raw(rd, name, idx, tb) :
 146                 res_cq_line(rd, name, idx, tb);
 147 }
 148
 149 int res_cq_parse_cb(const struct nlmsghdr *nlh, void *data)
 150 {
 151         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
 152         struct nlattr *nla_table, *nla_entry;
 153         struct rd *rd = data;
 154         int ret = MNL_CB_OK;
 155         const char *name;
 156         uint32_t idx;
 157
 158         mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
 159         if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
 160             !tb[RDMA_NLDEV_ATTR_RES_CQ])
 161                 return MNL_CB_ERROR;
 162
 163         name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 164         idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 165         nla_table = tb[RDMA_NLDEV_ATTR_RES_CQ];
 166
 167         mnl_attr_for_each_nested(nla_entry, nla_table) {
 168                 struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
 169
 170                 ret = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
 171                 if (ret != MNL_CB_OK)
 172                         break;
 173
 174                 ret = (rd->show_raw) ? res_cq_line_raw(rd, name, idx, nla_line) :
 175                         res_cq_line(rd, name, idx, nla_line);
 176
 177                 if (ret != MNL_CB_OK)
 178                         break;
 179         }
 180         return ret;
 181 }