diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mad.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mad.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx5/mad.c b/drivers/infiniband/hw/mlx5/mad.c index b4dc52392275..9c8a7b206dcf 100644 --- a/drivers/infiniband/hw/mlx5/mad.c +++ b/drivers/infiniband/hw/mlx5/mad.c @@ -147,6 +147,28 @@ static void pma_cnt_assign(struct ib_pma_portcounters *pma_cnt, vl_15_dropped); } +static int query_ib_ppcnt(struct mlx5_core_dev *dev, u8 port_num, void *out, + size_t sz) +{ + u32 *in; + int err; + + in = kvzalloc(sz, GFP_KERNEL); + if (!in) { + err = -ENOMEM; + return err; + } + + MLX5_SET(ppcnt_reg, in, local_port, port_num); + + MLX5_SET(ppcnt_reg, in, grp, MLX5_INFINIBAND_PORT_COUNTERS_GROUP); + err = mlx5_core_access_reg(dev, in, sz, out, + sz, MLX5_REG_PPCNT, 0, 0); + + kvfree(in); + return err; +} + static int process_pma_cmd(struct mlx5_ib_dev *dev, u32 port_num, const struct ib_mad *in_mad, struct ib_mad *out_mad) { @@ -208,8 +230,7 @@ static int process_pma_cmd(struct mlx5_ib_dev *dev, u32 port_num, goto done; } - err = mlx5_core_query_ib_ppcnt(mdev, mdev_port_num, - out_cnt, sz); + err = query_ib_ppcnt(mdev, mdev_port_num, out_cnt, sz); if (!err) pma_cnt_assign(pma_cnt, out_cnt); } |