diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c index 21be0987a93a..aa8927cee376 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c @@ -242,7 +242,75 @@ static const struct mlxsw_afk_block mlxsw_sp2_afk_blocks[] = { MLXSW_AFK_BLOCK(0x92, mlxsw_sp_afk_element_info_l4_2), }; +#define MLXSW_SP2_AFK_BITS_PER_BLOCK 36 + +/* A block in Spectrum-2 is of the following form: + * + * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ + * | | | | | | | | | | | | | | | | | | | | | | | | | | | | |35|34|33|32| + * +-----------------------------------------------------------------------------------------------+ + * |31|30|29|28|27|26|25|24|23|22|21|20|19|18|17|16|15|14|13|12|11|10| 9| 8| 7| 6| 5| 4| 3| 2| 1| 0| + * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ + */ +MLXSW_ITEM64(sp2_afk, block, value, 0x00, 0, MLXSW_SP2_AFK_BITS_PER_BLOCK); + +/* The key / mask block layout in Spectrum-2 is of the following form: + * + * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ + * | | | | | | | | | | | | | | | | | block11_high | + * +-----------------------------------------------------------------------------------------------+ + * | block11_low | block10_high | + * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ + * ... + */ + +struct mlxsw_sp2_afk_block_layout { + unsigned short offset; + struct mlxsw_item item; +}; + +#define MLXSW_SP2_AFK_BLOCK_LAYOUT(_block, _offset, _shift) \ + { \ + .offset = _offset, \ + { \ + .shift = _shift, \ + .size = {.bits = MLXSW_SP2_AFK_BITS_PER_BLOCK}, \ + .name = #_block, \ + } \ + } \ + +static const struct mlxsw_sp2_afk_block_layout mlxsw_sp2_afk_blocks_layout[] = { + MLXSW_SP2_AFK_BLOCK_LAYOUT(block0, 0x30, 0), + MLXSW_SP2_AFK_BLOCK_LAYOUT(block1, 0x2C, 4), + MLXSW_SP2_AFK_BLOCK_LAYOUT(block2, 0x28, 8), + MLXSW_SP2_AFK_BLOCK_LAYOUT(block3, 0x24, 12), + MLXSW_SP2_AFK_BLOCK_LAYOUT(block4, 0x20, 16), + MLXSW_SP2_AFK_BLOCK_LAYOUT(block5, 0x1C, 20), + MLXSW_SP2_AFK_BLOCK_LAYOUT(block6, 0x18, 24), + MLXSW_SP2_AFK_BLOCK_LAYOUT(block7, 0x14, 28), + MLXSW_SP2_AFK_BLOCK_LAYOUT(block8, 0x0C, 0), + MLXSW_SP2_AFK_BLOCK_LAYOUT(block9, 0x08, 4), + MLXSW_SP2_AFK_BLOCK_LAYOUT(block10, 0x04, 8), + MLXSW_SP2_AFK_BLOCK_LAYOUT(block11, 0x00, 12), +}; + +static void mlxsw_sp2_afk_encode_block(char *block, int block_index, + char *output) +{ + u64 block_value = mlxsw_sp2_afk_block_value_get(block); + const struct mlxsw_sp2_afk_block_layout *block_layout; + + if (WARN_ON(block_index < 0 || + block_index >= ARRAY_SIZE(mlxsw_sp2_afk_blocks_layout))) + return; + + block_layout = &mlxsw_sp2_afk_blocks_layout[block_index]; + __mlxsw_item_set64(output + block_layout->offset, + &block_layout->item, 0, block_value); +} + const struct mlxsw_afk_ops mlxsw_sp2_afk_ops = { .blocks = mlxsw_sp2_afk_blocks, .blocks_count = ARRAY_SIZE(mlxsw_sp2_afk_blocks), + .encode_block = mlxsw_sp2_afk_encode_block, }; |