diff options
| author | Ido Schimmel <idosch@mellanox.com> | 2017-03-24 08:02:50 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-24 13:53:29 -0700 |
| commit | f417f04da589f579fb0c0adea5e5474ed634c18f (patch) | |
| tree | 76e47f1b784e4592be8e4befd71bc95f6786a8f0 /drivers/net/ethernet/mellanox/mlxsw/spectrum.h | |
| parent | d3daae1b0808c82bc2875c0f249650d3efe6776f (diff) | |
mlxsw: spectrum: Refactor port buffer configuration
The sizes and thresholds of the priority group (PG) buffers are
configured in cells, which represent a specific amount of bytes.
The cell size can vary in different devices, so it's better to query it
from the firmware than hard coding it.
Refactor the code dealing with this value into different functions, so
that it will be easier to make the conversion in the next patch.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum.h | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index 80a0d7d3e1b5..958acac91ba8 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -73,19 +73,6 @@ #define MLXSW_SP_KVD_LINEAR_SIZE 65536 /* entries */ #define MLXSW_SP_KVD_GRANULARITY 128 -/* Maximum delay buffer needed in case of PAUSE frames, in cells. - * Assumes 100m cable and maximum MTU. - */ -#define MLXSW_SP_PAUSE_DELAY 612 - -#define MLXSW_SP_CELL_FACTOR 2 /* 2 * cell_size / (IPG + cell_size + 1) */ - -static inline u16 mlxsw_sp_pfc_delay_get(int mtu, u16 delay) -{ - delay = MLXSW_SP_BYTES_TO_CELLS(DIV_ROUND_UP(delay, BITS_PER_BYTE)); - return MLXSW_SP_CELL_FACTOR * delay + MLXSW_SP_BYTES_TO_CELLS(mtu); -} - struct mlxsw_sp_port; struct mlxsw_sp_rif; |