diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/resources.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum2_acl_tcam.c | 12 |
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/resources.h b/drivers/net/ethernet/mellanox/mlxsw/resources.h index c7fc650608eb..daacf6291253 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/resources.h +++ b/drivers/net/ethernet/mellanox/mlxsw/resources.h @@ -33,6 +33,7 @@ enum mlxsw_res_id { MLXSW_RES_ID_ACL_MAX_REGIONS, MLXSW_RES_ID_ACL_MAX_GROUPS, MLXSW_RES_ID_ACL_MAX_GROUP_SIZE, + MLXSW_RES_ID_ACL_MAX_DEFAULT_ACTIONS, MLXSW_RES_ID_ACL_FLEX_KEYS, MLXSW_RES_ID_ACL_MAX_ACTION_PER_RULE, MLXSW_RES_ID_ACL_ACTIONS_PER_SET, @@ -90,6 +91,7 @@ static u16 mlxsw_res_ids[] = { [MLXSW_RES_ID_ACL_MAX_REGIONS] = 0x2903, [MLXSW_RES_ID_ACL_MAX_GROUPS] = 0x2904, [MLXSW_RES_ID_ACL_MAX_GROUP_SIZE] = 0x2905, + [MLXSW_RES_ID_ACL_MAX_DEFAULT_ACTIONS] = 0x2908, [MLXSW_RES_ID_ACL_FLEX_KEYS] = 0x2910, [MLXSW_RES_ID_ACL_MAX_ACTION_PER_RULE] = 0x2911, [MLXSW_RES_ID_ACL_ACTIONS_PER_SET] = 0x2912, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum2_acl_tcam.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum2_acl_tcam.c index ad69913f19c1..5b0210862655 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum2_acl_tcam.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum2_acl_tcam.c @@ -77,7 +77,14 @@ static int mlxsw_sp2_acl_tcam_init(struct mlxsw_sp *mlxsw_sp, void *priv, int i; int err; + /* Some TCAM regions are not exposed to the host and used internally + * by the device. Allocate KVDL entries for the default actions of + * these regions to avoid the host from overwriting them. + */ tcam->kvdl_count = _tcam->max_regions; + if (MLXSW_CORE_RES_VALID(mlxsw_sp->core, ACL_MAX_DEFAULT_ACTIONS)) + tcam->kvdl_count = MLXSW_CORE_RES_GET(mlxsw_sp->core, + ACL_MAX_DEFAULT_ACTIONS); err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET, tcam->kvdl_count, &tcam->kvdl_index); if (err) @@ -97,7 +104,10 @@ static int mlxsw_sp2_acl_tcam_init(struct mlxsw_sp *mlxsw_sp, void *priv, goto err_afa_block_continue; enc_actions = mlxsw_afa_block_cur_set(afa_block); - for (i = 0; i < tcam->kvdl_count; i++) { + /* Only write to KVDL entries used by TCAM regions exposed to the + * host. + */ + for (i = 0; i < _tcam->max_regions; i++) { mlxsw_reg_pefa_pack(pefa_pl, tcam->kvdl_index + i, true, enc_actions); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pefa), pefa_pl); |