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mlxsw: reg: Prepare PERERP register for A-TCAM usage 

Before introducing A-TCAM support we need to make sure all the necessary
fields are configurable and not hard coded to values that worked for the
C-TCAM only use case.

This includes - for example - the ability to configure the eRP table
used by the TCAM region.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2018-07-25 09:23:50 +03:00 committed by David S. Miller
parent 41147bb18a
commit 91329e27f3
2 changed files with 20 additions and 4 deletions
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22
drivers/net/ethernet/mellanox/mlxsw/reg.h
View File

@ -2663,12 +2663,28 @@ MLXSW_ITEM_BIT_ARRAY(reg, pererp, erpt_vector, 0x14, 4, 1);
*/
MLXSW_ITEM32(reg, pererp, master_rp_id, 0x18, 0, 4);
static inline void mlxsw_reg_pererp_pack(char *payload, u16 region_id)
static inline void mlxsw_reg_pererp_erp_vector_pack(char *payload,
unsigned long *erp_vector,
unsigned long size)
{
unsigned long bit;
for_each_set_bit(bit, erp_vector, size)
mlxsw_reg_pererp_erpt_vector_set(payload, bit, true);
}
static inline void mlxsw_reg_pererp_pack(char *payload, u16 region_id,
bool ctcam_le, bool erpt_pointer_valid,
u8 erpt_bank_pointer, u8 erpt_pointer,
u8 master_rp_id)
{
MLXSW_REG_ZERO(pererp, payload);
mlxsw_reg_pererp_region_id_set(payload, region_id);
mlxsw_reg_pererp_ctcam_le_set(payload, true);
mlxsw_reg_pererp_erpt_pointer_valid_set(payload, true);
mlxsw_reg_pererp_ctcam_le_set(payload, ctcam_le);
mlxsw_reg_pererp_erpt_pointer_valid_set(payload, erpt_pointer_valid);
mlxsw_reg_pererp_erpt_bank_pointer_set(payload, erpt_bank_pointer);
mlxsw_reg_pererp_erpt_pointer_set(payload, erpt_pointer);
mlxsw_reg_pererp_master_rp_id_set(payload, master_rp_id);
}
/* IEDR - Infrastructure Entry Delete Register

2
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_atcam.c
View File

@ -72,7 +72,7 @@ mlxsw_sp_acl_atcam_region_erp_init(struct mlxsw_sp *mlxsw_sp,
{
char pererp_pl[MLXSW_REG_PERERP_LEN];
mlxsw_reg_pererp_pack(pererp_pl, region_id);
mlxsw_reg_pererp_pack(pererp_pl, region_id, true, true, 0, 0, 0);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pererp), pererp_pl);
}