rdma/res-mr.c

   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
  10 static 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
  24 static 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
  89 out:
  90         if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
  91                 free(comm);
  92         return MNL_CB_OK;
  93 }
  94
  95 int 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
 113 int 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 }