Commit 418089a8 authored by Nir Dotan's avatar Nir Dotan Committed by David S. Miller
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mlxsw: reg: Add Policy Engine Algorithmic Bloom Filter Entries Register



Bloom filter is a bit vector which allows the HW a fast lookup on a
small size bit vector, that may reduce the number of lookups on the
A-TCAM memory. PEABFE register allows setting values to the bits of
the bit vector mentioned above.
Add the register to be later used in A-TCAM optimizations.
Signed-off-by: default avatarNir Dotan <nird@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0634d694
......@@ -3095,6 +3095,72 @@ static inline void mlxsw_reg_pererp_pack(char *payload, u16 region_id,
mlxsw_reg_pererp_master_rp_id_set(payload, master_rp_id);
}
/* PEABFE - Policy-Engine Algorithmic Bloom Filter Entries Register
* ----------------------------------------------------------------
* This register configures the Bloom filter entries.
*/
#define MLXSW_REG_PEABFE_ID 0x3022
#define MLXSW_REG_PEABFE_BASE_LEN 0x10
#define MLXSW_REG_PEABFE_BF_REC_LEN 0x4
#define MLXSW_REG_PEABFE_BF_REC_MAX_COUNT 256
#define MLXSW_REG_PEABFE_LEN (MLXSW_REG_PEABFE_BASE_LEN + \
MLXSW_REG_PEABFE_BF_REC_LEN * \
MLXSW_REG_PEABFE_BF_REC_MAX_COUNT)
MLXSW_REG_DEFINE(peabfe, MLXSW_REG_PEABFE_ID, MLXSW_REG_PEABFE_LEN);
/* reg_peabfe_size
* Number of BF entries to be updated.
* Range 1..256
* Access: Op
*/
MLXSW_ITEM32(reg, peabfe, size, 0x00, 0, 9);
/* reg_peabfe_bf_entry_state
* Bloom filter state
* 0 - Clear
* 1 - Set
* Access: RW
*/
MLXSW_ITEM32_INDEXED(reg, peabfe, bf_entry_state,
MLXSW_REG_PEABFE_BASE_LEN, 31, 1,
MLXSW_REG_PEABFE_BF_REC_LEN, 0x00, false);
/* reg_peabfe_bf_entry_bank
* Bloom filter bank ID
* Range 0..cap_max_erp_table_banks-1
* Access: Index
*/
MLXSW_ITEM32_INDEXED(reg, peabfe, bf_entry_bank,
MLXSW_REG_PEABFE_BASE_LEN, 24, 4,
MLXSW_REG_PEABFE_BF_REC_LEN, 0x00, false);
/* reg_peabfe_bf_entry_index
* Bloom filter entry index
* Range 0..2^cap_max_bf_log-1
* Access: Index
*/
MLXSW_ITEM32_INDEXED(reg, peabfe, bf_entry_index,
MLXSW_REG_PEABFE_BASE_LEN, 0, 24,
MLXSW_REG_PEABFE_BF_REC_LEN, 0x00, false);
static inline void mlxsw_reg_peabfe_pack(char *payload)
{
MLXSW_REG_ZERO(peabfe, payload);
}
static inline void mlxsw_reg_peabfe_rec_pack(char *payload, int rec_index,
u8 state, u8 bank, u32 bf_index)
{
u8 num_rec = mlxsw_reg_peabfe_size_get(payload);
if (rec_index >= num_rec)
mlxsw_reg_peabfe_size_set(payload, rec_index + 1);
mlxsw_reg_peabfe_bf_entry_state_set(payload, rec_index, state);
mlxsw_reg_peabfe_bf_entry_bank_set(payload, rec_index, bank);
mlxsw_reg_peabfe_bf_entry_index_set(payload, rec_index, bf_index);
}
/* IEDR - Infrastructure Entry Delete Register
* ----------------------------------------------------
* This register is used for deleting entries from the entry tables.
......@@ -9608,6 +9674,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
MLXSW_REG(pemrbt),
MLXSW_REG(ptce2),
MLXSW_REG(perpt),
MLXSW_REG(peabfe),
MLXSW_REG(perar),
MLXSW_REG(ptce3),
MLXSW_REG(percr),
......
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