iproute2/rdma/res-cq.c
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   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
  10static 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
  20static 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
  28static 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(PRINT_ANY, "adaptive-moderation", "adaptive-moderation %s ", dim_setting);
  40}
  41
  42static 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
  56static 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
 126out:    if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
 127                free(comm);
 128        return MNL_CB_OK;
 129}
 130
 131int 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
 149int 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}
 182