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mlxsw: reg: Add Policy-Engine Region eRP Register

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The PERERP register configures the region eRPs. It can be used, for
example, to enable lookup in the C-TCAM in addition to the A-TCAM.

To be able to perform a lookup in the C-TCAM we need to "use" the eRP
table. This is done by marking the pointer as valid, but zeroing the eRP
table vector.

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 11:14:39 +03:00 committed by David S. Miller
parent 481662a8a3
commit f1c7d9cce2
1 changed files with 71 additions and 0 deletions
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71
drivers/net/ethernet/mellanox/mlxsw/reg.h
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@ -2579,6 +2579,76 @@ static inline void mlxsw_reg_percr_pack(char *payload, u16 region_id)
memset(payload + 0x20, 0xff, 96);
}
/* PERERP - Policy-Engine Region eRP Register
* ------------------------------------------
* This register configures the region eRP. The region_id must be
* allocated.
*/
#define MLXSW_REG_PERERP_ID 0x302B
#define MLXSW_REG_PERERP_LEN 0x1C
MLXSW_REG_DEFINE(pererp, MLXSW_REG_PERERP_ID, MLXSW_REG_PERERP_LEN);
/* reg_pererp_region_id
* Region identifier.
* Range 0..cap_max_regions-1
* Access: Index
*/
MLXSW_ITEM32(reg, pererp, region_id, 0x00, 0, 16);
/* reg_pererp_ctcam_le
* C-TCAM lookup enable. Reserved when erpt_pointer_valid = 0.
* Access: RW
*/
MLXSW_ITEM32(reg, pererp, ctcam_le, 0x04, 28, 1);
/* reg_pererp_erpt_pointer_valid
* erpt_pointer is valid.
* Access: RW
*/
MLXSW_ITEM32(reg, pererp, erpt_pointer_valid, 0x10, 31, 1);
/* reg_pererp_erpt_bank_pointer
* Pointer to eRP table bank. May be modified at any time.
* Range 0..cap_max_erp_table_banks-1
* Reserved when erpt_pointer_valid = 0
*/
MLXSW_ITEM32(reg, pererp, erpt_bank_pointer, 0x10, 16, 4);
/* reg_pererp_erpt_pointer
* Pointer to eRP table within the eRP bank. Can be changed for an
* existing region.
* Range 0..cap_max_erp_table_size-1
* Reserved when erpt_pointer_valid = 0
* Access: RW
*/
MLXSW_ITEM32(reg, pererp, erpt_pointer, 0x10, 0, 8);
/* reg_pererp_erpt_vector
* Vector of allowed eRP indexes starting from erpt_pointer within the
* erpt_bank_pointer. Next entries will be in next bank.
* Note that eRP index is used and not eRP ID.
* Reserved when erpt_pointer_valid = 0
* Access: RW
*/
MLXSW_ITEM_BIT_ARRAY(reg, pererp, erpt_vector, 0x14, 4, 1);
/* reg_pererp_master_rp_id
* Master RP ID. When there are no eRPs, then this provides the eRP ID
* for the lookup. Can be changed for an existing region.
* Reserved when erpt_pointer_valid = 1
* Access: RW
*/
MLXSW_ITEM32(reg, pererp, master_rp_id, 0x18, 0, 4);
static inline void mlxsw_reg_pererp_pack(char *payload, u16 region_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);
}
/* IEDR - Infrastructure Entry Delete Register
* ----------------------------------------------------
* This register is used for deleting entries from the entry tables.
@ -8157,6 +8227,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
MLXSW_REG(ptce2),
MLXSW_REG(perar),
MLXSW_REG(percr),
MLXSW_REG(pererp),
MLXSW_REG(iedr),
MLXSW_REG(qpcr),
MLXSW_REG(qtct),