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(rd, "adaptive-moderation", dim_setting);
  40}
  41
  42static 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
 112out:    if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
 113                free(comm);
 114        return MNL_CB_OK;
 115}
 116
 117int 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
 134int 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}
 166