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mlxsw: reg: Add Policy-Engine TCAM Allocation Register

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The PTAR register is used for allocation of regions in the TCAM.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2017-02-03 10:28:55 +01:00 committed by David S. Miller
parent 10fabef513
commit d9c2661e1c
1 changed files with 106 additions and 0 deletions
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106
drivers/net/ethernet/mellanox/mlxsw/reg.h
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@ -1852,6 +1852,111 @@ static inline void mlxsw_reg_pagt_acl_id_pack(char *payload, int index,
mlxsw_reg_pagt_acl_id_set(payload, index, acl_id);
}
/* PTAR - Policy-Engine TCAM Allocation Register
* ---------------------------------------------
* This register is used for allocation of regions in the TCAM.
* Note: Query method is not supported on this register.
*/
#define MLXSW_REG_PTAR_ID 0x3006
#define MLXSW_REG_PTAR_BASE_LEN 0x20
#define MLXSW_REG_PTAR_KEY_ID_LEN 1
#define MLXSW_REG_PTAR_KEY_ID_MAX_NUM 16
#define MLXSW_REG_PTAR_LEN (MLXSW_REG_PTAR_BASE_LEN + \
MLXSW_REG_PTAR_KEY_ID_MAX_NUM * MLXSW_REG_PTAR_KEY_ID_LEN)
MLXSW_REG_DEFINE(ptar, MLXSW_REG_PTAR_ID, MLXSW_REG_PTAR_LEN);
enum mlxsw_reg_ptar_op {
/* allocate a TCAM region */
MLXSW_REG_PTAR_OP_ALLOC,
/* resize a TCAM region */
MLXSW_REG_PTAR_OP_RESIZE,
/* deallocate TCAM region */
MLXSW_REG_PTAR_OP_FREE,
/* test allocation */
MLXSW_REG_PTAR_OP_TEST,
};
/* reg_ptar_op
* Access: OP
*/
MLXSW_ITEM32(reg, ptar, op, 0x00, 28, 4);
/* reg_ptar_action_set_type
* Type of action set to be used on this region.
* For Spectrum, this is always type 2 - "flexible"
* Access: WO
*/
MLXSW_ITEM32(reg, ptar, action_set_type, 0x00, 16, 8);
/* reg_ptar_key_type
* TCAM key type for the region.
* For Spectrum, this is always type 0x50 - "FLEX_KEY"
* Access: WO
*/
MLXSW_ITEM32(reg, ptar, key_type, 0x00, 0, 8);
/* reg_ptar_region_size
* TCAM region size. When allocating/resizing this is the requested size,
* the response is the actual size. Note that actual size may be
* larger than requested.
* Allowed range 1 .. cap_max_rules-1
* Reserved during op deallocate.
* Access: WO
*/
MLXSW_ITEM32(reg, ptar, region_size, 0x04, 0, 16);
/* reg_ptar_region_id
* Region identifier
* Range 0 .. cap_max_regions-1
* Access: Index
*/
MLXSW_ITEM32(reg, ptar, region_id, 0x08, 0, 16);
/* reg_ptar_tcam_region_info
* Opaque object that represents the TCAM region.
* Returned when allocating a region.
* Provided by software for ACL generation and region deallocation and resize.
* Access: RW
*/
MLXSW_ITEM_BUF(reg, ptar, tcam_region_info, 0x10,
MLXSW_REG_PXXX_TCAM_REGION_INFO_LEN);
/* reg_ptar_flexible_key_id
* Identifier of the Flexible Key.
* Only valid if key_type == "FLEX_KEY"
* The key size will be rounded up to one of the following values:
* 9B, 18B, 36B, 54B.
* This field is reserved for in resize operation.
* Access: WO
*/
MLXSW_ITEM8_INDEXED(reg, ptar, flexible_key_id, 0x20, 0, 8,
MLXSW_REG_PTAR_KEY_ID_LEN, 0x00, false);
static inline void mlxsw_reg_ptar_pack(char *payload, enum mlxsw_reg_ptar_op op,
u16 region_size, u16 region_id,
const char *tcam_region_info)
{
MLXSW_REG_ZERO(ptar, payload);
mlxsw_reg_ptar_op_set(payload, op);
mlxsw_reg_ptar_action_set_type_set(payload, 2); /* "flexible" */
mlxsw_reg_ptar_key_type_set(payload, 0x50); /* "FLEX_KEY" */
mlxsw_reg_ptar_region_size_set(payload, region_size);
mlxsw_reg_ptar_region_id_set(payload, region_id);
mlxsw_reg_ptar_tcam_region_info_memcpy_to(payload, tcam_region_info);
}
static inline void mlxsw_reg_ptar_key_id_pack(char *payload, int index,
u16 key_id)
{
mlxsw_reg_ptar_flexible_key_id_set(payload, index, key_id);
}
static inline void mlxsw_reg_ptar_unpack(char *payload, char *tcam_region_info)
{
mlxsw_reg_ptar_tcam_region_info_memcpy_from(payload, tcam_region_info);
}
/* QPCR - QoS Policer Configuration Register
* -----------------------------------------
* The QPCR register is used to create policers - that limit
@ -5531,6 +5636,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
MLXSW_REG(spvmlr),
MLXSW_REG(pacl),
MLXSW_REG(pagt),
MLXSW_REG(ptar),
MLXSW_REG(qpcr),
MLXSW_REG(qtct),
MLXSW_REG(qeec),