UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

mlxsw: spectrum_acl: Add support for Spectrum-2 block encoding 

Encode each flexible key block in the general block scheme according its
block index.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2018-07-18 11:14:42 +03:00 committed by David S. Miller
parent a6d70a878e
commit 7a921a1e58
1 changed files with 68 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

68
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c
View File

@ -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,
};