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mlxsw: acl: Introduce mcrouter ACL action 

The Spectrum multicast forwarding is done using an ACL action. Add the
mcrouter ACL action that will be used to offload the multicast router
logic.

Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yotam Gigi 2017-09-19 10:00:10 +02:00 committed by David S. Miller
parent d3b939b8f9
commit 4b8a79ff27
2 changed files with 74 additions and 0 deletions
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71
drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.c
View File

@ -891,3 +891,74 @@ int mlxsw_afa_block_append_fid_set(struct mlxsw_afa_block *block, u16 fid)
return 0;
}
EXPORT_SYMBOL(mlxsw_afa_block_append_fid_set);
/* MC Routing Action
* -----------------
* The Multicast router action. Can be used by RMFT_V2 - Router Multicast
* Forwarding Table Version 2 Register.
*/
#define MLXSW_AFA_MCROUTER_CODE 0x10
#define MLXSW_AFA_MCROUTER_SIZE 2
enum mlxsw_afa_mcrouter_rpf_action {
MLXSW_AFA_MCROUTER_RPF_ACTION_NOP,
MLXSW_AFA_MCROUTER_RPF_ACTION_TRAP,
MLXSW_AFA_MCROUTER_RPF_ACTION_DISCARD_ERROR,
};
/* afa_mcrouter_rpf_action */
MLXSW_ITEM32(afa, mcrouter, rpf_action, 0x00, 28, 3);
/* afa_mcrouter_expected_irif */
MLXSW_ITEM32(afa, mcrouter, expected_irif, 0x00, 0, 16);
/* afa_mcrouter_min_mtu */
MLXSW_ITEM32(afa, mcrouter, min_mtu, 0x08, 0, 16);
enum mlxsw_afa_mrouter_vrmid {
MLXSW_AFA_MCROUTER_VRMID_INVALID,
MLXSW_AFA_MCROUTER_VRMID_VALID
};
/* afa_mcrouter_vrmid
* Valid RMID: rigr_rmid_index is used as RMID
*/
MLXSW_ITEM32(afa, mcrouter, vrmid, 0x0C, 31, 1);
/* afa_mcrouter_rigr_rmid_index
* When the vrmid field is set to invalid, the field is used as pointer to
* Router Interface Group (RIGR) Table in the KVD linear.
* When the vrmid is set to valid, the field is used as RMID index, ranged
* from 0 to max_mid - 1. The index is to the Port Group Table.
*/
MLXSW_ITEM32(afa, mcrouter, rigr_rmid_index, 0x0C, 0, 24);
static inline void
mlxsw_afa_mcrouter_pack(char *payload,
enum mlxsw_afa_mcrouter_rpf_action rpf_action,
u16 expected_irif, u16 min_mtu,
enum mlxsw_afa_mrouter_vrmid vrmid, u32 rigr_rmid_index)
{
mlxsw_afa_mcrouter_rpf_action_set(payload, rpf_action);
mlxsw_afa_mcrouter_expected_irif_set(payload, expected_irif);
mlxsw_afa_mcrouter_min_mtu_set(payload, min_mtu);
mlxsw_afa_mcrouter_vrmid_set(payload, vrmid);
mlxsw_afa_mcrouter_rigr_rmid_index_set(payload, rigr_rmid_index);
}
int mlxsw_afa_block_append_mcrouter(struct mlxsw_afa_block *block,
u16 expected_irif, u16 min_mtu,
bool rmid_valid, u32 kvdl_index)
{
char *act = mlxsw_afa_block_append_action(block,
MLXSW_AFA_MCROUTER_CODE,
MLXSW_AFA_MCROUTER_SIZE);
if (!act)
return -ENOBUFS;
mlxsw_afa_mcrouter_pack(act, MLXSW_AFA_MCROUTER_RPF_ACTION_TRAP,
expected_irif, min_mtu, rmid_valid, kvdl_index);
return 0;
}
EXPORT_SYMBOL(mlxsw_afa_block_append_mcrouter);

3
drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_actions.h
View File

@ -68,5 +68,8 @@ int mlxsw_afa_block_append_vlan_modify(struct mlxsw_afa_block *block,
int mlxsw_afa_block_append_counter(struct mlxsw_afa_block *block,
u32 counter_index);
int mlxsw_afa_block_append_fid_set(struct mlxsw_afa_block *block, u16 fid);
int mlxsw_afa_block_append_mcrouter(struct mlxsw_afa_block *block,
u16 expected_irif, u16 min_mtu,
bool rmid_valid, u32 kvdl_index);
#endif