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(struct rd *rd, const char *name, int idx,
  43                        struct nlattr **nla_line)
  44 {
  45         char *comm = NULL;
  46         uint32_t pid = 0;
  47         uint8_t poll_ctx = 0;
  48         uint32_t ctxn = 0;
  49         uint32_t cqn = 0;
  50         uint64_t users;
  51         uint32_t cqe;
  52
  53         if (!nla_line[RDMA_NLDEV_ATTR_RES_CQE] ||
  54             !nla_line[RDMA_NLDEV_ATTR_RES_USECNT])
  55                 return MNL_CB_ERROR;
  56
  57         cqe = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CQE]);
  58
  59         users = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_USECNT]);
  60         if (rd_is_filtered_attr(rd, "users", users,
  61                                 nla_line[RDMA_NLDEV_ATTR_RES_USECNT]))
  62                 goto out;
  63
  64         if (nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX])
  65                 poll_ctx =
  66                         mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]);
  67         if (rd_is_string_filtered_attr(rd, "poll-ctx",
  68                                        poll_ctx_to_str(poll_ctx),
  69                                        nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]))
  70                 goto out;
  71
  72         if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
  73                 pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]);
  74                 comm = get_task_name(pid);
  75         }
  76
  77         if (rd_is_filtered_attr(rd, "pid", pid,
  78                                 nla_line[RDMA_NLDEV_ATTR_RES_PID]))
  79                 goto out;
  80
  81         if (nla_line[RDMA_NLDEV_ATTR_RES_CQN])
  82                 cqn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CQN]);
  83         if (rd_is_filtered_attr(rd, "cqn", cqn,
  84                                 nla_line[RDMA_NLDEV_ATTR_RES_CQN]))
  85                 goto out;
  86         if (nla_line[RDMA_NLDEV_ATTR_RES_CTXN])
  87                 ctxn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
  88         if (rd_is_filtered_attr(rd, "ctxn", ctxn,
  89                                 nla_line[RDMA_NLDEV_ATTR_RES_CTXN]))
  90                 goto out;
  91
  92         if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
  93                 /* discard const from mnl_attr_get_str */
  94                 comm = (char *)mnl_attr_get_str(
  95                         nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]);
  96
  97         open_json_object(NULL);
  98         print_dev(rd, idx, name);
  99         res_print_uint(rd, "cqn", cqn, nla_line[RDMA_NLDEV_ATTR_RES_CQN]);
 100         res_print_uint(rd, "cqe", cqe, nla_line[RDMA_NLDEV_ATTR_RES_CQE]);
 101         res_print_uint(rd, "users", users,
 102                        nla_line[RDMA_NLDEV_ATTR_RES_USECNT]);
 103         print_poll_ctx(rd, poll_ctx, nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]);
 104         print_cq_dim_setting(rd, nla_line[RDMA_NLDEV_ATTR_DEV_DIM]);
 105         res_print_uint(rd, "ctxn", ctxn, nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
 106         res_print_uint(rd, "pid", pid, nla_line[RDMA_NLDEV_ATTR_RES_PID]);
 107         print_comm(rd, comm, nla_line);
 108
 109         print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
 110         newline(rd);
 111
 112 out:    if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
 113                 free(comm);
 114         return MNL_CB_OK;
 115 }
 116
 117 int res_cq_idx_parse_cb(const struct nlmsghdr *nlh, void *data)
 118 {
 119         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
 120         struct rd *rd = data;
 121         const char *name;
 122         uint32_t idx;
 123
 124         mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
 125         if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME])
 126                 return MNL_CB_ERROR;
 127
 128         name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 129         idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 130
 131         return res_cq_line(rd, name, idx, tb);
 132 }
 133
 134 int res_cq_parse_cb(const struct nlmsghdr *nlh, void *data)
 135 {
 136         struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
 137         struct nlattr *nla_table, *nla_entry;
 138         struct rd *rd = data;
 139         int ret = MNL_CB_OK;
 140         const char *name;
 141         uint32_t idx;
 142
 143         mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
 144         if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
 145             !tb[RDMA_NLDEV_ATTR_RES_CQ])
 146                 return MNL_CB_ERROR;
 147
 148         name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 149         idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 150         nla_table = tb[RDMA_NLDEV_ATTR_RES_CQ];
 151
 152         mnl_attr_for_each_nested(nla_entry, nla_table) {
 153                 struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
 154
 155                 ret = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
 156                 if (ret != MNL_CB_OK)
 157                         break;
 158
 159                 ret = res_cq_line(rd, name, idx, nla_line);
 160
 161                 if (ret != MNL_CB_OK)
 162                         break;
 163         }
 164         return ret;
 165 }