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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* res-pd.c RDMA tool
* Authors: Leon Romanovsky <leonro@mellanox.com>
*/
#include "res.h"
#include <inttypes.h>
static int res_pd_line(struct rd *rd, const char *name, int idx,
struct nlattr **nla_line)
{
uint32_t local_dma_lkey = 0, unsafe_global_rkey = 0;
char *comm = NULL;
uint32_t ctxn = 0;
uint32_t pid = 0;
uint32_t pdn = 0;
uint64_t users;
SPRINT_BUF(b);
if (!nla_line[RDMA_NLDEV_ATTR_RES_USECNT])
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_is_filtered_attr(rd, "users", users,
nla_line[RDMA_NLDEV_ATTR_RES_USECNT]))
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]);
if (!get_task_name(pid, b, sizeof(b)))
comm = b;
} else 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_is_filtered_attr(rd, "pid", pid,
nla_line[RDMA_NLDEV_ATTR_RES_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_is_filtered_attr(rd, "ctxn", ctxn,
nla_line[RDMA_NLDEV_ATTR_RES_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_is_filtered_attr(rd, "pdn", pdn,
nla_line[RDMA_NLDEV_ATTR_RES_PDN]))
goto out;
open_json_object(NULL);
print_dev(idx, name);
res_print_u32("pdn", pdn, nla_line[RDMA_NLDEV_ATTR_RES_PDN]);
print_key("local_dma_lkey", local_dma_lkey,
nla_line[RDMA_NLDEV_ATTR_RES_LOCAL_DMA_LKEY]);
res_print_u64("users", users, nla_line[RDMA_NLDEV_ATTR_RES_USECNT]);
print_key("unsafe_global_rkey", unsafe_global_rkey,
nla_line[RDMA_NLDEV_ATTR_RES_UNSAFE_GLOBAL_RKEY]);
res_print_u32("ctxn", ctxn, nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
res_print_u32("pid", pid, nla_line[RDMA_NLDEV_ATTR_RES_PID]);
print_comm(comm, nla_line);
print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
close_json_object();
newline();
out:
return MNL_CB_OK;
}
int res_pd_idx_parse_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
struct rd *rd = data;
const char *name;
uint32_t idx;
mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME])
return MNL_CB_ERROR;
name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
return res_pd_line(rd, name, idx, tb);
}
int res_pd_parse_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
struct nlattr *nla_table, *nla_entry;
struct rd *rd = data;
int ret = MNL_CB_OK;
const char *name;
uint32_t idx;
mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
!tb[RDMA_NLDEV_ATTR_RES_PD])
return MNL_CB_ERROR;
name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
nla_table = tb[RDMA_NLDEV_ATTR_RES_PD];
mnl_attr_for_each_nested(nla_entry, nla_table) {
struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
ret = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
if (ret != MNL_CB_OK)
break;
ret = res_pd_line(rd, name, idx, nla_line);
if (ret != MNL_CB_OK)
break;
}
return ret;
}
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