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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* Copyright (c) 2019, Mellanox Technologies inc. All rights reserved.
*/
#include <uapi/rdma/rdma_netlink.h>
#include <rdma/ib_umem_odp.h>
#include <rdma/restrack.h>
#include "mlx5_ib.h"
static int fill_stat_mr_entry(struct sk_buff *msg,
struct rdma_restrack_entry *res)
{
struct ib_mr *ibmr = container_of(res, struct ib_mr, res);
struct mlx5_ib_mr *mr = to_mmr(ibmr);
struct nlattr *table_attr;
if (!(mr->access_flags & IB_ACCESS_ON_DEMAND))
return 0;
table_attr = nla_nest_start(msg,
RDMA_NLDEV_ATTR_STAT_HWCOUNTERS);
if (!table_attr)
goto err;
if (rdma_nl_stat_hwcounter_entry(msg, "page_faults",
atomic64_read(&mr->odp_stats.faults)))
goto err_table;
if (rdma_nl_stat_hwcounter_entry(
msg, "page_invalidations",
atomic64_read(&mr->odp_stats.invalidations)))
goto err_table;
nla_nest_end(msg, table_attr);
return 0;
err_table:
nla_nest_cancel(msg, table_attr);
err:
return -EMSGSIZE;
}
static int fill_res_mr_entry(struct sk_buff *msg,
struct rdma_restrack_entry *res)
{
struct ib_mr *ibmr = container_of(res, struct ib_mr, res);
struct mlx5_ib_mr *mr = to_mmr(ibmr);
struct nlattr *table_attr;
if (!(mr->access_flags & IB_ACCESS_ON_DEMAND))
return 0;
table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER);
if (!table_attr)
goto err;
if (mr->is_odp_implicit) {
if (rdma_nl_put_driver_string(msg, "odp", "implicit"))
goto err;
} else {
if (rdma_nl_put_driver_string(msg, "odp", "explicit"))
goto err;
}
nla_nest_end(msg, table_attr);
return 0;
err:
nla_nest_cancel(msg, table_attr);
return -EMSGSIZE;
}
int mlx5_ib_fill_res_entry(struct sk_buff *msg,
struct rdma_restrack_entry *res)
{
if (res->type == RDMA_RESTRACK_MR)
return fill_res_mr_entry(msg, res);
return 0;
}
int mlx5_ib_fill_stat_entry(struct sk_buff *msg,
struct rdma_restrack_entry *res)
{
if (res->type == RDMA_RESTRACK_MR)
return fill_stat_mr_entry(msg, res);
return 0;
}
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