iproute2/rdma/res-mr.c
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   1// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
   2/*
   3 * res-mr.c     RDMA tool
   4 * Authors:     Leon Romanovsky <leonro@mellanox.com>
   5 */
   6
   7#include "res.h"
   8#include <inttypes.h>
   9
  10static int res_mr_line_raw(struct rd *rd, const char *name, int idx,
  11                           struct nlattr **nla_line)
  12{
  13        if (!nla_line[RDMA_NLDEV_ATTR_RES_RAW])
  14                return MNL_CB_ERROR;
  15
  16        open_json_object(NULL);
  17        print_dev(rd, idx, name);
  18        print_raw_data(rd, nla_line);
  19        newline(rd);
  20
  21        return MNL_CB_OK;
  22}
  23
  24static int res_mr_line(struct rd *rd, const char *name, int idx,
  25                       struct nlattr **nla_line)
  26{
  27        uint32_t rkey = 0, lkey = 0;
  28        uint64_t iova = 0, mrlen;
  29        char *comm = NULL;
  30        uint32_t pdn = 0;
  31        uint32_t mrn = 0;
  32        uint32_t pid = 0;
  33
  34        if (!nla_line[RDMA_NLDEV_ATTR_RES_MRLEN])
  35                return MNL_CB_ERROR;
  36
  37        if (nla_line[RDMA_NLDEV_ATTR_RES_RKEY])
  38                rkey = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RKEY]);
  39        if (nla_line[RDMA_NLDEV_ATTR_RES_LKEY])
  40                lkey = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LKEY]);
  41        if (nla_line[RDMA_NLDEV_ATTR_RES_IOVA])
  42                iova = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_IOVA]);
  43
  44        mrlen = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_MRLEN]);
  45        if (rd_is_filtered_attr(rd, "mrlen", mrlen,
  46                                nla_line[RDMA_NLDEV_ATTR_RES_MRLEN]))
  47                goto out;
  48
  49        if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
  50                pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]);
  51                comm = get_task_name(pid);
  52        }
  53
  54        if (rd_is_filtered_attr(rd, "pid", pid,
  55                                nla_line[RDMA_NLDEV_ATTR_RES_PID]))
  56                goto out;
  57
  58        if (nla_line[RDMA_NLDEV_ATTR_RES_MRN])
  59                mrn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_MRN]);
  60        if (rd_is_filtered_attr(rd, "mrn", mrn,
  61                                nla_line[RDMA_NLDEV_ATTR_RES_MRN]))
  62                goto out;
  63
  64        if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
  65                pdn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
  66        if (rd_is_filtered_attr(rd, "pdn", pdn,
  67                                nla_line[RDMA_NLDEV_ATTR_RES_PDN]))
  68                goto out;
  69
  70        if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
  71                /* discard const from mnl_attr_get_str */
  72                comm = (char *)mnl_attr_get_str(
  73                        nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]);
  74        open_json_object(NULL);
  75        print_dev(rd, idx, name);
  76        res_print_uint(rd, "mrn", mrn, nla_line[RDMA_NLDEV_ATTR_RES_MRN]);
  77        print_key(rd, "rkey", rkey, nla_line[RDMA_NLDEV_ATTR_RES_RKEY]);
  78        print_key(rd, "lkey", lkey, nla_line[RDMA_NLDEV_ATTR_RES_LKEY]);
  79        print_key(rd, "iova", iova, nla_line[RDMA_NLDEV_ATTR_RES_IOVA]);
  80        res_print_uint(rd, "mrlen", mrlen, nla_line[RDMA_NLDEV_ATTR_RES_MRLEN]);
  81        res_print_uint(rd, "pdn", pdn, nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
  82        res_print_uint(rd, "pid", pid, nla_line[RDMA_NLDEV_ATTR_RES_PID]);
  83        print_comm(rd, comm, nla_line);
  84
  85        print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
  86        print_raw_data(rd, nla_line);
  87        newline(rd);
  88
  89out:
  90        if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
  91                free(comm);
  92        return MNL_CB_OK;
  93}
  94
  95int res_mr_idx_parse_cb(const struct nlmsghdr *nlh, void *data)
  96{
  97        struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
  98        struct rd *rd = data;
  99        const char *name;
 100        uint32_t idx;
 101
 102        mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
 103        if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME])
 104                return MNL_CB_ERROR;
 105
 106        name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 107        idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 108
 109        return (rd->show_raw) ? res_mr_line_raw(rd, name, idx, tb) :
 110                res_mr_line(rd, name, idx, tb);
 111}
 112
 113int res_mr_parse_cb(const struct nlmsghdr *nlh, void *data)
 114{
 115        struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
 116        struct nlattr *nla_table, *nla_entry;
 117        struct rd *rd = data;
 118        int ret = MNL_CB_OK;
 119        const char *name;
 120        uint32_t idx;
 121
 122        mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
 123        if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
 124            !tb[RDMA_NLDEV_ATTR_RES_MR])
 125                return MNL_CB_ERROR;
 126
 127        name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
 128        idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
 129        nla_table = tb[RDMA_NLDEV_ATTR_RES_MR];
 130
 131        mnl_attr_for_each_nested(nla_entry, nla_table) {
 132                struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
 133
 134                ret = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
 135                if (ret != MNL_CB_OK)
 136                        break;
 137
 138                ret = (rd->show_raw) ? res_mr_line_raw(rd, name, idx, nla_line) :
 139                        res_mr_line(rd, name, idx, nla_line);
 140                if (ret != MNL_CB_OK)
 141                        break;
 142        }
 143        return ret;
 144}
 145