RDMA/nldev: Provide MR statistics

Add RDMA nldev netlink interface for dumping MR statistics information.

Output example:

$ ./ibv_rc_pingpong -o -P -s 500000000
  local address:  LID 0x0001, QPN 0x00008a, PSN 0xf81096, GID ::

$ rdma stat show mr
dev mlx5_0 mrn 2 page_faults 122071 page_invalidations 0

Link: https://lore.kernel.org/r/20191016062308.11886-5-leon@kernel.org
Signed-off-by: Erez Alfasi <ereza@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Erez Alfasi
2019-10-16 09:23:08 +03:00
zatwierdzone przez Jason Gunthorpe
rodzic e1b95ae0b0
commit 4061ff7aa3
7 zmienionych plików z 95 dodań i 6 usunięć

Wyświetl plik

@@ -8,6 +8,39 @@
#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)
{
@@ -46,3 +79,12 @@ int mlx5_ib_fill_res_entry(struct sk_buff *msg,
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;
}