+static int res_pd_line(struct rd *rd, const char *name, int idx,
+ struct nlattr *nla_entry)
+{
+ uint32_t local_dma_lkey = 0, unsafe_global_rkey = 0;
+ struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
+ char *comm = NULL;
+ uint32_t ctxn = 0;
+ uint32_t pid = 0;
+ uint32_t pdn = 0;
+ uint64_t users;
+ int err;
+
+ err = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
+ if (err != MNL_CB_OK)
+ return MNL_CB_ERROR;
+
+ if (!nla_line[RDMA_NLDEV_ATTR_RES_USECNT] ||
+ (!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
+ !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
+ return MNL_CB_ERROR;
+ }
+
+ if (nla_line[RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY])
+ local_dma_lkey = mnl_attr_get_u32(
+ nla_line[RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY]);
+
+ users = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_USECNT]);
+ if (rd_check_is_filtered(rd, "users", users))
+ goto out;
+
+ if (nla_line[RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY])
+ unsafe_global_rkey = mnl_attr_get_u32(
+ nla_line[RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY]);
+
+ if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
+ pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]);
+ comm = get_task_name(pid);
+ }
+
+ if (rd_check_is_filtered(rd, "pid", pid))
+ goto out;
+
+ if (nla_line[RDMA_NLDEV_ATTR_RES_CTXN])
+ ctxn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
+
+ if (rd_check_is_filtered(rd, "ctxn", ctxn))
+ goto out;
+
+ if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
+ pdn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
+ if (rd_check_is_filtered(rd, "pdn", pdn))
+ goto out;
+
+ if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
+ /* discard const from mnl_attr_get_str */
+ comm = (char *)mnl_attr_get_str(
+ nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]);
+
+ if (rd->json_output)
+ jsonw_start_array(rd->jw);
+
+ print_dev(rd, idx, name);
+ if (nla_line[RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY])
+ print_key(rd, "local_dma_lkey", local_dma_lkey);
+ res_print_uint(rd, "users", users);
+ if (nla_line[RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY])
+ print_key(rd, "unsafe_global_rkey", unsafe_global_rkey);
+ res_print_uint(rd, "pid", pid);
+ print_comm(rd, comm, nla_line);
+ if (nla_line[RDMA_NLDEV_ATTR_RES_CTXN])
+ res_print_uint(rd, "ctxn", ctxn);
+
+ if (nla_line[RDMA_NLDEV_ATTR_RES_PDN])
+ res_print_uint(rd, "pdn", pdn);
+
+ print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
+ newline(rd);
+
+out: if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
+ free(comm);
+ return MNL_CB_OK;
+}
+