Commit 9db810ed authored by Alex Vesker's avatar Alex Vesker Committed by Saeed Mahameed

net/mlx5: DR, Expose steering action functionality

On rule creation a set of actions can be provided, the actions describe
what to do with the packet in case of a match. It is possible to provide
a set of actions which will be done by order.
Signed-off-by: default avatarAlex Vesker <valex@mellanox.com>
Reviewed-by: default avatarErez Shitrit <erezsh@mellanox.com>
Reviewed-by: default avatarMark Bloch <markb@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 852f660b
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/* Copyright (c) 2019 Mellanox Technologies. */
#include "dr_types.h"
enum dr_action_domain {
DR_ACTION_DOMAIN_NIC_INGRESS,
DR_ACTION_DOMAIN_NIC_EGRESS,
DR_ACTION_DOMAIN_FDB_INGRESS,
DR_ACTION_DOMAIN_FDB_EGRESS,
DR_ACTION_DOMAIN_MAX,
};
enum dr_action_valid_state {
DR_ACTION_STATE_ERR,
DR_ACTION_STATE_NO_ACTION,
DR_ACTION_STATE_REFORMAT,
DR_ACTION_STATE_MODIFY_HDR,
DR_ACTION_STATE_MODIFY_VLAN,
DR_ACTION_STATE_NON_TERM,
DR_ACTION_STATE_TERM,
DR_ACTION_STATE_MAX,
};
static const enum dr_action_valid_state
next_action_state[DR_ACTION_DOMAIN_MAX][DR_ACTION_STATE_MAX][DR_ACTION_TYP_MAX] = {
[DR_ACTION_DOMAIN_NIC_INGRESS] = {
[DR_ACTION_STATE_NO_ACTION] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_QP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_TAG] = DR_ACTION_STATE_NON_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_NON_TERM,
[DR_ACTION_TYP_TNL_L2_TO_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_TNL_L3_TO_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_MODIFY_HDR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_POP_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
},
[DR_ACTION_STATE_REFORMAT] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_QP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_TAG] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_MODIFY_HDR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_POP_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
},
[DR_ACTION_STATE_MODIFY_HDR] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_QP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_TAG] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_MODIFY_HDR,
},
[DR_ACTION_STATE_MODIFY_VLAN] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_QP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_TAG] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_POP_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_MODIFY_HDR] = DR_ACTION_STATE_MODIFY_HDR,
},
[DR_ACTION_STATE_NON_TERM] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_QP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_TAG] = DR_ACTION_STATE_NON_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_NON_TERM,
[DR_ACTION_TYP_TNL_L2_TO_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_TNL_L3_TO_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_MODIFY_HDR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_POP_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
},
[DR_ACTION_STATE_TERM] = {
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_TERM,
},
},
[DR_ACTION_DOMAIN_NIC_EGRESS] = {
[DR_ACTION_STATE_NO_ACTION] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_NON_TERM,
[DR_ACTION_TYP_L2_TO_TNL_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_L2_TO_TNL_L3] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_MODIFY_HDR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_PUSH_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
},
[DR_ACTION_STATE_REFORMAT] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_REFORMAT,
},
[DR_ACTION_STATE_MODIFY_HDR] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_L2_TO_TNL_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_L2_TO_TNL_L3] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_PUSH_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
},
[DR_ACTION_STATE_MODIFY_VLAN] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_PUSH_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_L2_TO_TNL_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_L2_TO_TNL_L3] = DR_ACTION_STATE_REFORMAT,
},
[DR_ACTION_STATE_NON_TERM] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_NON_TERM,
[DR_ACTION_TYP_L2_TO_TNL_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_L2_TO_TNL_L3] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_MODIFY_HDR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_PUSH_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
},
[DR_ACTION_STATE_TERM] = {
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_TERM,
},
},
[DR_ACTION_DOMAIN_FDB_INGRESS] = {
[DR_ACTION_STATE_NO_ACTION] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_NON_TERM,
[DR_ACTION_TYP_TNL_L2_TO_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_TNL_L3_TO_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_MODIFY_HDR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_POP_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_VPORT] = DR_ACTION_STATE_TERM,
},
[DR_ACTION_STATE_REFORMAT] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_MODIFY_HDR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_POP_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_VPORT] = DR_ACTION_STATE_TERM,
},
[DR_ACTION_STATE_MODIFY_HDR] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_VPORT] = DR_ACTION_STATE_TERM,
},
[DR_ACTION_STATE_MODIFY_VLAN] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_POP_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_VPORT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_MODIFY_HDR] = DR_ACTION_STATE_MODIFY_HDR,
},
[DR_ACTION_STATE_NON_TERM] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_NON_TERM,
[DR_ACTION_TYP_TNL_L2_TO_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_TNL_L3_TO_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_MODIFY_HDR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_POP_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_VPORT] = DR_ACTION_STATE_TERM,
},
[DR_ACTION_STATE_TERM] = {
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_TERM,
},
},
[DR_ACTION_DOMAIN_FDB_EGRESS] = {
[DR_ACTION_STATE_NO_ACTION] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_NON_TERM,
[DR_ACTION_TYP_MODIFY_HDR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_L2_TO_TNL_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_L2_TO_TNL_L3] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_PUSH_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_VPORT] = DR_ACTION_STATE_TERM,
},
[DR_ACTION_STATE_REFORMAT] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_VPORT] = DR_ACTION_STATE_TERM,
},
[DR_ACTION_STATE_MODIFY_HDR] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_L2_TO_TNL_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_L2_TO_TNL_L3] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_PUSH_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_VPORT] = DR_ACTION_STATE_TERM,
},
[DR_ACTION_STATE_MODIFY_VLAN] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_PUSH_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_L2_TO_TNL_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_L2_TO_TNL_L3] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_VPORT] = DR_ACTION_STATE_TERM,
},
[DR_ACTION_STATE_NON_TERM] = {
[DR_ACTION_TYP_DROP] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_FT] = DR_ACTION_STATE_TERM,
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_NON_TERM,
[DR_ACTION_TYP_MODIFY_HDR] = DR_ACTION_STATE_MODIFY_HDR,
[DR_ACTION_TYP_L2_TO_TNL_L2] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_L2_TO_TNL_L3] = DR_ACTION_STATE_REFORMAT,
[DR_ACTION_TYP_PUSH_VLAN] = DR_ACTION_STATE_MODIFY_VLAN,
[DR_ACTION_TYP_VPORT] = DR_ACTION_STATE_TERM,
},
[DR_ACTION_STATE_TERM] = {
[DR_ACTION_TYP_CTR] = DR_ACTION_STATE_TERM,
},
},
};
struct dr_action_modify_field_conv {
u16 hw_field;
u8 start;
u8 end;
u8 l3_type;
u8 l4_type;
};
static const struct dr_action_modify_field_conv dr_action_conv_arr[] = {
[MLX5_ACTION_IN_FIELD_OUT_SMAC_47_16] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L2_1, .start = 16, .end = 47,
},
[MLX5_ACTION_IN_FIELD_OUT_SMAC_15_0] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L2_1, .start = 0, .end = 15,
},
[MLX5_ACTION_IN_FIELD_OUT_ETHERTYPE] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L2_2, .start = 32, .end = 47,
},
[MLX5_ACTION_IN_FIELD_OUT_DMAC_47_16] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L2_0, .start = 16, .end = 47,
},
[MLX5_ACTION_IN_FIELD_OUT_DMAC_15_0] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L2_0, .start = 0, .end = 15,
},
[MLX5_ACTION_IN_FIELD_OUT_IP_DSCP] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_1, .start = 0, .end = 5,
},
[MLX5_ACTION_IN_FIELD_OUT_TCP_FLAGS] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L4_0, .start = 48, .end = 56,
.l4_type = MLX5DR_ACTION_MDFY_HW_HDR_L4_TCP,
},
[MLX5_ACTION_IN_FIELD_OUT_TCP_SPORT] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L4_0, .start = 0, .end = 15,
.l4_type = MLX5DR_ACTION_MDFY_HW_HDR_L4_TCP,
},
[MLX5_ACTION_IN_FIELD_OUT_TCP_DPORT] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L4_0, .start = 16, .end = 31,
.l4_type = MLX5DR_ACTION_MDFY_HW_HDR_L4_TCP,
},
[MLX5_ACTION_IN_FIELD_OUT_IP_TTL] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_1, .start = 8, .end = 15,
.l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_IPV4,
},
[MLX5_ACTION_IN_FIELD_OUT_IPV6_HOPLIMIT] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_1, .start = 8, .end = 15,
.l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_IPV6,
},
[MLX5_ACTION_IN_FIELD_OUT_UDP_SPORT] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L4_0, .start = 0, .end = 15,
.l4_type = MLX5DR_ACTION_MDFY_HW_HDR_L4_UDP,
},
[MLX5_ACTION_IN_FIELD_OUT_UDP_DPORT] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L4_0, .start = 16, .end = 31,
.l4_type = MLX5DR_ACTION_MDFY_HW_HDR_L4_UDP,
},
[MLX5_ACTION_IN_FIELD_OUT_SIPV6_127_96] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_3, .start = 32, .end = 63,
.l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_IPV6,
},
[MLX5_ACTION_IN_FIELD_OUT_SIPV6_95_64] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_3, .start = 0, .end = 31,
.l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_IPV6,
},
[MLX5_ACTION_IN_FIELD_OUT_SIPV6_63_32] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_4, .start = 32, .end = 63,
.l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_IPV6,
},
[MLX5_ACTION_IN_FIELD_OUT_SIPV6_31_0] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_4, .start = 0, .end = 31,
.l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_IPV6,
},
[MLX5_ACTION_IN_FIELD_OUT_DIPV6_127_96] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_0, .start = 32, .end = 63,
.l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_IPV6,
},
[MLX5_ACTION_IN_FIELD_OUT_DIPV6_95_64] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_0, .start = 0, .end = 31,
.l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_IPV6,
},
[MLX5_ACTION_IN_FIELD_OUT_DIPV6_63_32] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_2, .start = 32, .end = 63,
.l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_IPV6,
},
[MLX5_ACTION_IN_FIELD_OUT_DIPV6_31_0] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_2, .start = 0, .end = 31,
.l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_IPV6,
},
[MLX5_ACTION_IN_FIELD_OUT_SIPV4] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_0, .start = 0, .end = 31,
.l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_IPV4,
},
[MLX5_ACTION_IN_FIELD_OUT_DIPV4] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L3_0, .start = 32, .end = 63,
.l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_IPV4,
},
[MLX5_ACTION_IN_FIELD_METADATA_REG_A] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_METADATA, .start = 0, .end = 31,
},
[MLX5_ACTION_IN_FIELD_METADATA_REG_B] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_METADATA, .start = 32, .end = 63,
},
[MLX5_ACTION_IN_FIELD_METADATA_REG_C_0] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_REG_0, .start = 32, .end = 63,
},
[MLX5_ACTION_IN_FIELD_METADATA_REG_C_1] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_REG_0, .start = 0, .end = 31,
},
[MLX5_ACTION_IN_FIELD_METADATA_REG_C_2] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_REG_1, .start = 32, .end = 63,
},
[MLX5_ACTION_IN_FIELD_METADATA_REG_C_3] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_REG_1, .start = 0, .end = 31,
},
[MLX5_ACTION_IN_FIELD_METADATA_REG_C_4] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_REG_2, .start = 32, .end = 63,
},
[MLX5_ACTION_IN_FIELD_METADATA_REG_C_5] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_REG_2, .start = 0, .end = 31,
},
[MLX5_ACTION_IN_FIELD_OUT_TCP_SEQ_NUM] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L4_1, .start = 32, .end = 63,
},
[MLX5_ACTION_IN_FIELD_OUT_TCP_ACK_NUM] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L4_1, .start = 0, .end = 31,
},
[MLX5_ACTION_IN_FIELD_OUT_FIRST_VID] = {
.hw_field = MLX5DR_ACTION_MDFY_HW_FLD_L2_2, .start = 0, .end = 15,
},
};
#define MAX_VLANS 2
struct dr_action_vlan_info {
int count;
u32 headers[MAX_VLANS];
};
struct dr_action_apply_attr {
u32 modify_index;
u16 modify_actions;
u32 decap_index;
u16 decap_actions;
u8 decap_with_vlan:1;
u64 final_icm_addr;
u32 flow_tag;
u32 ctr_id;
u16 gvmi;
u16 hit_gvmi;
u32 reformat_id;
u32 reformat_size;
struct dr_action_vlan_info vlans;
};
static int
dr_action_reformat_to_action_type(enum mlx5dr_action_reformat_type reformat_type,
enum mlx5dr_action_type *action_type)
{
switch (reformat_type) {
case DR_ACTION_REFORMAT_TYP_TNL_L2_TO_L2:
*action_type = DR_ACTION_TYP_TNL_L2_TO_L2;
break;
case DR_ACTION_REFORMAT_TYP_L2_TO_TNL_L2:
*action_type = DR_ACTION_TYP_L2_TO_TNL_L2;
break;
case DR_ACTION_REFORMAT_TYP_TNL_L3_TO_L2:
*action_type = DR_ACTION_TYP_TNL_L3_TO_L2;
break;
case DR_ACTION_REFORMAT_TYP_L2_TO_TNL_L3:
*action_type = DR_ACTION_TYP_L2_TO_TNL_L3;
break;
default:
return -EINVAL;
}
return 0;
}
static void dr_actions_init_next_ste(u8 **last_ste,
u32 *added_stes,
enum mlx5dr_ste_entry_type entry_type,
u16 gvmi)
{
(*added_stes)++;
*last_ste += DR_STE_SIZE;
mlx5dr_ste_init(*last_ste, MLX5DR_STE_LU_TYPE_DONT_CARE, entry_type, gvmi);
}
static void dr_actions_apply_tx(struct mlx5dr_domain *dmn,
u8 *action_type_set,
u8 *last_ste,
struct dr_action_apply_attr *attr,
u32 *added_stes)
{
bool encap = action_type_set[DR_ACTION_TYP_L2_TO_TNL_L2] ||
action_type_set[DR_ACTION_TYP_L2_TO_TNL_L3];
/* We want to make sure the modify header comes before L2
* encapsulation. The reason for that is that we support
* modify headers for outer headers only
*/
if (action_type_set[DR_ACTION_TYP_MODIFY_HDR]) {
mlx5dr_ste_set_entry_type(last_ste, MLX5DR_STE_TYPE_MODIFY_PKT);
mlx5dr_ste_set_rewrite_actions(last_ste,
attr->modify_actions,
attr->modify_index);
}
if (action_type_set[DR_ACTION_TYP_PUSH_VLAN]) {
int i;
for (i = 0; i < attr->vlans.count; i++) {
if (i || action_type_set[DR_ACTION_TYP_MODIFY_HDR])
dr_actions_init_next_ste(&last_ste,
added_stes,
MLX5DR_STE_TYPE_TX,
attr->gvmi);
mlx5dr_ste_set_tx_push_vlan(last_ste,
attr->vlans.headers[i],
encap);
}
}
if (encap) {
/* Modify header and encapsulation require a different STEs.
* Since modify header STE format doesn't support encapsulation
* tunneling_action.
*/
if (action_type_set[DR_ACTION_TYP_MODIFY_HDR] ||
action_type_set[DR_ACTION_TYP_PUSH_VLAN])
dr_actions_init_next_ste(&last_ste,
added_stes,
MLX5DR_STE_TYPE_TX,
attr->gvmi);
mlx5dr_ste_set_tx_encap(last_ste,
attr->reformat_id,
attr->reformat_size,
action_type_set[DR_ACTION_TYP_L2_TO_TNL_L3]);
/* Whenever prio_tag_required enabled, we can be sure that the
* previous table (ACL) already push vlan to our packet,
* And due to HW limitation we need to set this bit, otherwise
* push vlan + reformat will not work.
*/
if (MLX5_CAP_GEN(dmn->mdev, prio_tag_required))
mlx5dr_ste_set_go_back_bit(last_ste);
}
if (action_type_set[DR_ACTION_TYP_CTR])
mlx5dr_ste_set_counter_id(last_ste, attr->ctr_id);
}
static void dr_actions_apply_rx(u8 *action_type_set,
u8 *last_ste,
struct dr_action_apply_attr *attr,
u32 *added_stes)
{
if (action_type_set[DR_ACTION_TYP_CTR])
mlx5dr_ste_set_counter_id(last_ste, attr->ctr_id);
if (action_type_set[DR_ACTION_TYP_TNL_L3_TO_L2]) {
mlx5dr_ste_set_entry_type(last_ste, MLX5DR_STE_TYPE_MODIFY_PKT);
mlx5dr_ste_set_rx_decap_l3(last_ste, attr->decap_with_vlan);
mlx5dr_ste_set_rewrite_actions(last_ste,
attr->decap_actions,
attr->decap_index);
}
if (action_type_set[DR_ACTION_TYP_TNL_L2_TO_L2])
mlx5dr_ste_set_rx_decap(last_ste);
if (action_type_set[DR_ACTION_TYP_POP_VLAN]) {
int i;
for (i = 0; i < attr->vlans.count; i++) {
if (i ||
action_type_set[DR_ACTION_TYP_TNL_L2_TO_L2] ||
action_type_set[DR_ACTION_TYP_TNL_L3_TO_L2])
dr_actions_init_next_ste(&last_ste,
added_stes,
MLX5DR_STE_TYPE_RX,
attr->gvmi);
mlx5dr_ste_set_rx_pop_vlan(last_ste);
}
}
if (action_type_set[DR_ACTION_TYP_MODIFY_HDR]) {
if (mlx5dr_ste_get_entry_type(last_ste) == MLX5DR_STE_TYPE_MODIFY_PKT)
dr_actions_init_next_ste(&last_ste,
added_stes,
MLX5DR_STE_TYPE_MODIFY_PKT,
attr->gvmi);
else
mlx5dr_ste_set_entry_type(last_ste, MLX5DR_STE_TYPE_MODIFY_PKT);
mlx5dr_ste_set_rewrite_actions(last_ste,
attr->modify_actions,
attr->modify_index);
}
if (action_type_set[DR_ACTION_TYP_TAG]) {
if (mlx5dr_ste_get_entry_type(last_ste) == MLX5DR_STE_TYPE_MODIFY_PKT)
dr_actions_init_next_ste(&last_ste,
added_stes,
MLX5DR_STE_TYPE_RX,
attr->gvmi);
mlx5dr_ste_rx_set_flow_tag(last_ste, attr->flow_tag);
}
}
/* Apply the actions on the rule STE array starting from the last_ste.
* Actions might require more than one STE, new_num_stes will return
* the new size of the STEs array, rule with actions.
*/
static void dr_actions_apply(struct mlx5dr_domain *dmn,
enum mlx5dr_ste_entry_type ste_type,
u8 *action_type_set,
u8 *last_ste,
struct dr_action_apply_attr *attr,
u32 *new_num_stes)
{
u32 added_stes = 0;
if (ste_type == MLX5DR_STE_TYPE_RX)
dr_actions_apply_rx(action_type_set, last_ste, attr, &added_stes);
else
dr_actions_apply_tx(dmn, action_type_set, last_ste, attr, &added_stes);
last_ste += added_stes * DR_STE_SIZE;
*new_num_stes += added_stes;
mlx5dr_ste_set_hit_gvmi(last_ste, attr->hit_gvmi);
mlx5dr_ste_set_hit_addr(last_ste, attr->final_icm_addr, 1);
}
static enum dr_action_domain
dr_action_get_action_domain(enum mlx5dr_domain_type domain,
enum mlx5dr_ste_entry_type ste_type)
{
switch (domain) {
case MLX5DR_DOMAIN_TYPE_NIC_RX:
return DR_ACTION_DOMAIN_NIC_INGRESS;
case MLX5DR_DOMAIN_TYPE_NIC_TX:
return DR_ACTION_DOMAIN_NIC_EGRESS;
case MLX5DR_DOMAIN_TYPE_FDB:
if (ste_type == MLX5DR_STE_TYPE_RX)
return DR_ACTION_DOMAIN_FDB_INGRESS;
return DR_ACTION_DOMAIN_FDB_EGRESS;
default:
WARN_ON(true);
return DR_ACTION_DOMAIN_MAX;
}
}
static
int dr_action_validate_and_get_next_state(enum dr_action_domain action_domain,
u32 action_type,
u32 *state)
{
u32 cur_state = *state;
/* Check action state machine is valid */
*state = next_action_state[action_domain][cur_state][action_type];
if (*state == DR_ACTION_STATE_ERR)
return -EOPNOTSUPP;
return 0;
}
static int dr_action_handle_cs_recalc(struct mlx5dr_domain *dmn,
struct mlx5dr_action *dest_action,
u64 *final_icm_addr)
{
int ret;
switch (dest_action->action_type) {
case DR_ACTION_TYP_FT:
/* Allow destination flow table only if table is a terminating
* table, since there is an *assumption* that in such case FW
* will recalculate the CS.
*/
if (dest_action->dest_tbl.is_fw_tbl) {
*final_icm_addr = dest_action->dest_tbl.fw_tbl.rx_icm_addr;
} else {
mlx5dr_dbg(dmn,
"Destination FT should be terminating when modify TTL is used\n");
return -EINVAL;
}
break;
case DR_ACTION_TYP_VPORT:
/* If destination is vport we will get the FW flow table
* that recalculates the CS and forwards to the vport.
*/
ret = mlx5dr_domain_cache_get_recalc_cs_ft_addr(dest_action->vport.dmn,
dest_action->vport.num,
final_icm_addr);
if (ret) {
mlx5dr_err(dmn, "Failed to get FW cs recalc flow table\n");
return ret;
}
break;
default:
break;
}
return 0;
}
#define WITH_VLAN_NUM_HW_ACTIONS 6
int mlx5dr_actions_build_ste_arr(struct mlx5dr_matcher *matcher,
struct mlx5dr_matcher_rx_tx *nic_matcher,
struct mlx5dr_action *actions[],
u32 num_actions,
u8 *ste_arr,
u32 *new_hw_ste_arr_sz)
{
struct mlx5dr_domain_rx_tx *nic_dmn = nic_matcher->nic_tbl->nic_dmn;
bool rx_rule = nic_dmn->ste_type == MLX5DR_STE_TYPE_RX;
struct mlx5dr_domain *dmn = matcher->tbl->dmn;
u8 action_type_set[DR_ACTION_TYP_MAX] = {};
struct mlx5dr_action *dest_action = NULL;
u32 state = DR_ACTION_STATE_NO_ACTION;
struct dr_action_apply_attr attr = {};
enum dr_action_domain action_domain;
bool recalc_cs_required = false;
u8 *last_ste;
int i, ret;
attr.gvmi = dmn->info.caps.gvmi;
attr.hit_gvmi = dmn->info.caps.gvmi;
attr.final_icm_addr = nic_dmn->default_icm_addr;
action_domain = dr_action_get_action_domain(dmn->type, nic_dmn->ste_type);
for (i = 0; i < num_actions; i++) {
struct mlx5dr_action *action;
int max_actions_type = 1;
u32 action_type;
action = actions[i];
action_type = action->action_type;
switch (action_type) {
case DR_ACTION_TYP_DROP:
attr.final_icm_addr = nic_dmn->drop_icm_addr;
break;
case DR_ACTION_TYP_FT:
dest_action = action;
if (!action->dest_tbl.is_fw_tbl) {
if (action->dest_tbl.tbl->dmn != dmn) {
mlx5dr_dbg(dmn,
"Destination table belongs to a different domain\n");
goto out_invalid_arg;
}
if (action->dest_tbl.tbl->level <= matcher->tbl->level) {
mlx5dr_dbg(dmn,
"Destination table level should be higher than source table\n");
goto out_invalid_arg;
}
attr.final_icm_addr = rx_rule ?
action->dest_tbl.tbl->rx.s_anchor->chunk->icm_addr :
action->dest_tbl.tbl->tx.s_anchor->chunk->icm_addr;
} else {
struct mlx5dr_cmd_query_flow_table_details output;
int ret;
/* get the relevant addresses */
if (!action->dest_tbl.fw_tbl.rx_icm_addr) {
ret = mlx5dr_cmd_query_flow_table(action->dest_tbl.fw_tbl.mdev,
action->dest_tbl.fw_tbl.ft->type,
action->dest_tbl.fw_tbl.ft->id,
&output);
if (!ret) {
action->dest_tbl.fw_tbl.tx_icm_addr =
output.sw_owner_icm_root_1;
action->dest_tbl.fw_tbl.rx_icm_addr =
output.sw_owner_icm_root_0;
} else {
mlx5dr_dbg(dmn,
"Failed mlx5_cmd_query_flow_table ret: %d\n",
ret);
return ret;
}
}
attr.final_icm_addr = rx_rule ?
action->dest_tbl.fw_tbl.rx_icm_addr :
action->dest_tbl.fw_tbl.tx_icm_addr;
}
break;
case DR_ACTION_TYP_QP:
mlx5dr_info(dmn, "Domain doesn't support QP\n");
goto out_invalid_arg;
case DR_ACTION_TYP_CTR:
attr.ctr_id = action->ctr.ctr_id +
action->ctr.offeset;
break;
case DR_ACTION_TYP_TAG:
attr.flow_tag = action->flow_tag;
break;
case DR_ACTION_TYP_TNL_L2_TO_L2:
break;
case DR_ACTION_TYP_TNL_L3_TO_L2:
attr.decap_index = action->rewrite.index;
attr.decap_actions = action->rewrite.num_of_actions;
attr.decap_with_vlan =
attr.decap_actions == WITH_VLAN_NUM_HW_ACTIONS;
break;
case DR_ACTION_TYP_MODIFY_HDR:
attr.modify_index = action->rewrite.index;
attr.modify_actions = action->rewrite.num_of_actions;
recalc_cs_required = action->rewrite.modify_ttl;
break;
case DR_ACTION_TYP_L2_TO_TNL_L2:
case DR_ACTION_TYP_L2_TO_TNL_L3:
attr.reformat_size = action->reformat.reformat_size;
attr.reformat_id = action->reformat.reformat_id;
break;
case DR_ACTION_TYP_VPORT:
attr.hit_gvmi = action->vport.caps->vhca_gvmi;
dest_action = action;
if (rx_rule) {
/* Loopback on WIRE vport is not supported */
if (action->vport.num == WIRE_PORT)
goto out_invalid_arg;
attr.final_icm_addr = action->vport.caps->icm_address_rx;
} else {
attr.final_icm_addr = action->vport.caps->icm_address_tx;
}
break;
case DR_ACTION_TYP_POP_VLAN:
max_actions_type = MAX_VLANS;
attr.vlans.count++;
break;
case DR_ACTION_TYP_PUSH_VLAN:
max_actions_type = MAX_VLANS;
if (attr.vlans.count == MAX_VLANS)
return -EINVAL;
attr.vlans.headers[attr.vlans.count++] = action->push_vlan.vlan_hdr;
break;
default:
goto out_invalid_arg;
}
/* Check action duplication */
if (++action_type_set[action_type] > max_actions_type) {
mlx5dr_dbg(dmn, "Action type %d supports only max %d time(s)\n",
action_type, max_actions_type);
goto out_invalid_arg;
}
/* Check action state machine is valid */
if (dr_action_validate_and_get_next_state(action_domain,
action_type,
&state)) {
mlx5dr_dbg(dmn, "Invalid action sequence provided\n");
return -EOPNOTSUPP;
}
}
*new_hw_ste_arr_sz = nic_matcher->num_of_builders;
last_ste = ste_arr + DR_STE_SIZE * (nic_matcher->num_of_builders - 1);
/* Due to a HW bug, modifying TTL on RX flows will cause an incorrect
* checksum calculation. In this case we will use a FW table to
* recalculate.
*/
if (dmn->type == MLX5DR_DOMAIN_TYPE_FDB &&
rx_rule && recalc_cs_required && dest_action) {
ret = dr_action_handle_cs_recalc(dmn, dest_action, &attr.final_icm_addr);
if (ret) {
mlx5dr_dbg(dmn,
"Failed to handle checksum recalculation err %d\n",
ret);
return ret;
}
}
dr_actions_apply(dmn,
nic_dmn->ste_type,
action_type_set,
last_ste,
&attr,
new_hw_ste_arr_sz);
return 0;
out_invalid_arg:
return -EINVAL;
}
#define CVLAN_ETHERTYPE 0x8100
#define SVLAN_ETHERTYPE 0x88a8
#define HDR_LEN_L2_ONLY 14
#define HDR_LEN_L2_VLAN 18
#define REWRITE_HW_ACTION_NUM 6
static int dr_actions_l2_rewrite(struct mlx5dr_domain *dmn,
struct mlx5dr_action *action,
void *data, size_t data_sz)
{
struct mlx5_ifc_l2_hdr_bits *l2_hdr = data;
u64 ops[REWRITE_HW_ACTION_NUM] = {};
u32 hdr_fld_4b;
u16 hdr_fld_2b;
u16 vlan_type;
bool vlan;
int i = 0;
int ret;
vlan = (data_sz != HDR_LEN_L2_ONLY);
/* dmac_47_16 */
MLX5_SET(dr_action_hw_set, ops + i,
opcode, MLX5DR_ACTION_MDFY_HW_OP_SET);
MLX5_SET(dr_action_hw_set, ops + i,
destination_length, 0);
MLX5_SET(dr_action_hw_set, ops + i,
destination_field_code, MLX5DR_ACTION_MDFY_HW_FLD_L2_0);
MLX5_SET(dr_action_hw_set, ops + i,
destination_left_shifter, 16);
hdr_fld_4b = MLX5_GET(l2_hdr, l2_hdr, dmac_47_16);
MLX5_SET(dr_action_hw_set, ops + i,
inline_data, hdr_fld_4b);
i++;
/* smac_47_16 */
MLX5_SET(dr_action_hw_set, ops + i,
opcode, MLX5DR_ACTION_MDFY_HW_OP_SET);
MLX5_SET(dr_action_hw_set, ops + i,
destination_length, 0);
MLX5_SET(dr_action_hw_set, ops + i,
destination_field_code, MLX5DR_ACTION_MDFY_HW_FLD_L2_1);
MLX5_SET(dr_action_hw_set, ops + i,
destination_left_shifter, 16);
hdr_fld_4b = (MLX5_GET(l2_hdr, l2_hdr, smac_31_0) >> 16 |
MLX5_GET(l2_hdr, l2_hdr, smac_47_32) << 16);
MLX5_SET(dr_action_hw_set, ops + i,
inline_data, hdr_fld_4b);
i++;
/* dmac_15_0 */
MLX5_SET(dr_action_hw_set, ops + i,
opcode, MLX5DR_ACTION_MDFY_HW_OP_SET);
MLX5_SET(dr_action_hw_set, ops + i,
destination_length, 16);
MLX5_SET(dr_action_hw_set, ops + i,
destination_field_code, MLX5DR_ACTION_MDFY_HW_FLD_L2_0);
MLX5_SET(dr_action_hw_set, ops + i,
destination_left_shifter, 0);
hdr_fld_2b = MLX5_GET(l2_hdr, l2_hdr, dmac_15_0);
MLX5_SET(dr_action_hw_set, ops + i,
inline_data, hdr_fld_2b);
i++;
/* ethertype + (optional) vlan */
MLX5_SET(dr_action_hw_set, ops + i,
opcode, MLX5DR_ACTION_MDFY_HW_OP_SET);
MLX5_SET(dr_action_hw_set, ops + i,
destination_field_code, MLX5DR_ACTION_MDFY_HW_FLD_L2_2);
MLX5_SET(dr_action_hw_set, ops + i,
destination_left_shifter, 32);
if (!vlan) {
hdr_fld_2b = MLX5_GET(l2_hdr, l2_hdr, ethertype);
MLX5_SET(dr_action_hw_set, ops + i, inline_data, hdr_fld_2b);
MLX5_SET(dr_action_hw_set, ops + i, destination_length, 16);
} else {
hdr_fld_2b = MLX5_GET(l2_hdr, l2_hdr, ethertype);
vlan_type = hdr_fld_2b == SVLAN_ETHERTYPE ? DR_STE_SVLAN : DR_STE_CVLAN;
hdr_fld_2b = MLX5_GET(l2_hdr, l2_hdr, vlan);
hdr_fld_4b = (vlan_type << 16) | hdr_fld_2b;
MLX5_SET(dr_action_hw_set, ops + i, inline_data, hdr_fld_4b);
MLX5_SET(dr_action_hw_set, ops + i, destination_length, 18);
}
i++;
/* smac_15_0 */
MLX5_SET(dr_action_hw_set, ops + i,
opcode, MLX5DR_ACTION_MDFY_HW_OP_SET);
MLX5_SET(dr_action_hw_set, ops + i,
destination_length, 16);
MLX5_SET(dr_action_hw_set, ops + i,
destination_field_code, MLX5DR_ACTION_MDFY_HW_FLD_L2_1);
MLX5_SET(dr_action_hw_set, ops + i,
destination_left_shifter, 0);
hdr_fld_2b = MLX5_GET(l2_hdr, l2_hdr, smac_31_0);
MLX5_SET(dr_action_hw_set, ops + i,
inline_data, hdr_fld_2b);
i++;
if (vlan) {
MLX5_SET(dr_action_hw_set, ops + i,
opcode, MLX5DR_ACTION_MDFY_HW_OP_SET);
hdr_fld_2b = MLX5_GET(l2_hdr, l2_hdr, vlan_type);
MLX5_SET(dr_action_hw_set, ops + i,
inline_data, hdr_fld_2b);
MLX5_SET(dr_action_hw_set, ops + i,
destination_length, 16);
MLX5_SET(dr_action_hw_set, ops + i,
destination_field_code, MLX5DR_ACTION_MDFY_HW_FLD_L2_2);
MLX5_SET(dr_action_hw_set, ops + i,
destination_left_shifter, 0);
i++;
}
action->rewrite.data = (void *)ops;
action->rewrite.num_of_actions = i;
action->rewrite.chunk->byte_size = i * sizeof(*ops);
ret = mlx5dr_send_postsend_action(dmn, action);
if (ret) {
mlx5dr_dbg(dmn, "Writing encapsulation action to ICM failed\n");
return ret;
}
return 0;
}
static struct mlx5dr_action *
dr_action_create_generic(enum mlx5dr_action_type action_type)
{
struct mlx5dr_action *action;
action = kzalloc(sizeof(*action), GFP_KERNEL);
if (!action)
return NULL;
action->action_type = action_type;
refcount_set(&action->refcount, 1);
return action;
}
struct mlx5dr_action *mlx5dr_action_create_drop(void)
{
return dr_action_create_generic(DR_ACTION_TYP_DROP);
}
struct mlx5dr_action *
mlx5dr_action_create_dest_table(struct mlx5dr_table *tbl)
{
struct mlx5dr_action *action;
refcount_inc(&tbl->refcount);
action = dr_action_create_generic(DR_ACTION_TYP_FT);
if (!action)
goto dec_ref;
action->dest_tbl.tbl = tbl;
return action;
dec_ref:
refcount_dec(&tbl->refcount);
return NULL;
}
struct mlx5dr_action *
mlx5dr_create_action_dest_flow_fw_table(struct mlx5_flow_table *ft,
struct mlx5_core_dev *mdev)
{
struct mlx5dr_action *action;
action = dr_action_create_generic(DR_ACTION_TYP_FT);
if (!action)
return NULL;
action->dest_tbl.is_fw_tbl = 1;
action->dest_tbl.fw_tbl.ft = ft;
action->dest_tbl.fw_tbl.mdev = mdev;
return action;
}
struct mlx5dr_action *
mlx5dr_action_create_flow_counter(u32 counter_id)
{
struct mlx5dr_action *action;
action = dr_action_create_generic(DR_ACTION_TYP_CTR);
if (!action)
return NULL;
action->ctr.ctr_id = counter_id;
return action;
}
struct mlx5dr_action *mlx5dr_action_create_tag(u32 tag_value)
{
struct mlx5dr_action *action;
action = dr_action_create_generic(DR_ACTION_TYP_TAG);
if (!action)
return NULL;
action->flow_tag = tag_value & 0xffffff;
return action;
}
static int
dr_action_verify_reformat_params(enum mlx5dr_action_type reformat_type,
struct mlx5dr_domain *dmn,
size_t data_sz,
void *data)
{
if ((!data && data_sz) || (data && !data_sz) || reformat_type >
DR_ACTION_TYP_L2_TO_TNL_L3) {
mlx5dr_dbg(dmn, "Invalid reformat parameter!\n");
goto out_err;
}
if (dmn->type == MLX5DR_DOMAIN_TYPE_FDB)
return 0;
if (dmn->type == MLX5DR_DOMAIN_TYPE_NIC_RX) {
if (reformat_type != DR_ACTION_TYP_TNL_L2_TO_L2 &&
reformat_type != DR_ACTION_TYP_TNL_L3_TO_L2) {
mlx5dr_dbg(dmn, "Action reformat type not support on RX domain\n");
goto out_err;
}
} else if (dmn->type == MLX5DR_DOMAIN_TYPE_NIC_TX) {
if (reformat_type != DR_ACTION_TYP_L2_TO_TNL_L2 &&
reformat_type != DR_ACTION_TYP_L2_TO_TNL_L3) {
mlx5dr_dbg(dmn, "Action reformat type not support on TX domain\n");
goto out_err;
}
}
return 0;
out_err:
return -EINVAL;
}
#define ACTION_CACHE_LINE_SIZE 64
static int
dr_action_create_reformat_action(struct mlx5dr_domain *dmn,
size_t data_sz, void *data,
struct mlx5dr_action *action)
{
u32 reformat_id;
int ret;
switch (action->action_type) {
case DR_ACTION_TYP_L2_TO_TNL_L2:
case DR_ACTION_TYP_L2_TO_TNL_L3:
{
enum mlx5dr_action_type rt;
if (action->action_type == DR_ACTION_TYP_L2_TO_TNL_L2)
rt = MLX5_REFORMAT_TYPE_L2_TO_L2_TUNNEL;
else
rt = MLX5_REFORMAT_TYPE_L2_TO_L3_TUNNEL;
ret = mlx5dr_cmd_create_reformat_ctx(dmn->mdev, rt, data_sz, data,
&reformat_id);
if (ret)
return ret;
action->reformat.reformat_id = reformat_id;
action->reformat.reformat_size = data_sz;
return 0;
}
case DR_ACTION_TYP_TNL_L2_TO_L2:
{
return 0;
}
case DR_ACTION_TYP_TNL_L3_TO_L2:
{
/* Only Ethernet frame is supported, with VLAN (18) or without (14) */
if (data_sz != HDR_LEN_L2_ONLY && data_sz != HDR_LEN_L2_VLAN)
return -EINVAL;
action->rewrite.chunk = mlx5dr_icm_alloc_chunk(dmn->action_icm_pool,
DR_CHUNK_SIZE_8);
if (!action->rewrite.chunk)
return -ENOMEM;
action->rewrite.index = (action->rewrite.chunk->icm_addr -
dmn->info.caps.hdr_modify_icm_addr) /
ACTION_CACHE_LINE_SIZE;
ret = dr_actions_l2_rewrite(dmn, action, data, data_sz);
if (ret) {
mlx5dr_icm_free_chunk(action->rewrite.chunk);
return ret;
}
return 0;
}
default:
mlx5dr_info(dmn, "Reformat type is not supported %d\n", action->action_type);
return -EINVAL;
}
}
struct mlx5dr_action *mlx5dr_action_create_pop_vlan(void)
{
return dr_action_create_generic(DR_ACTION_TYP_POP_VLAN);
}
struct mlx5dr_action *mlx5dr_action_create_push_vlan(struct mlx5dr_domain *dmn,
__be32 vlan_hdr)
{
u32 vlan_hdr_h = ntohl(vlan_hdr);
u16 ethertype = vlan_hdr_h >> 16;
struct mlx5dr_action *action;
if (ethertype != SVLAN_ETHERTYPE && ethertype != CVLAN_ETHERTYPE) {
mlx5dr_dbg(dmn, "Invalid vlan ethertype\n");
return NULL;
}
action = dr_action_create_generic(DR_ACTION_TYP_PUSH_VLAN);
if (!action)
return NULL;
action->push_vlan.vlan_hdr = vlan_hdr_h;
return action;
}
struct mlx5dr_action *
mlx5dr_action_create_packet_reformat(struct mlx5dr_domain *dmn,
enum mlx5dr_action_reformat_type reformat_type,
size_t data_sz,
void *data)
{
enum mlx5dr_action_type action_type;
struct mlx5dr_action *action;
int ret;
refcount_inc(&dmn->refcount);
/* General checks */
ret = dr_action_reformat_to_action_type(reformat_type, &action_type);
if (ret) {
mlx5dr_dbg(dmn, "Invalid reformat_type provided\n");
goto dec_ref;
}
ret = dr_action_verify_reformat_params(action_type, dmn, data_sz, data);
if (ret)
goto dec_ref;
action = dr_action_create_generic(action_type);
if (!action)
goto dec_ref;
action->reformat.dmn = dmn;
ret = dr_action_create_reformat_action(dmn,
data_sz,
data,
action);
if (ret) {
mlx5dr_dbg(dmn, "Failed creating reformat action %d\n", ret);
goto free_action;
}
return action;
free_action:
kfree(action);
dec_ref:
refcount_dec(&dmn->refcount);
return NULL;
}
static const struct dr_action_modify_field_conv *
dr_action_modify_get_hw_info(u16 sw_field)
{
const struct dr_action_modify_field_conv *hw_action_info;
if (sw_field >= ARRAY_SIZE(dr_action_conv_arr))
goto not_found;
hw_action_info = &dr_action_conv_arr[sw_field];
if (!hw_action_info->end && !hw_action_info->start)
goto not_found;
return hw_action_info;
not_found:
return NULL;
}
static int
dr_action_modify_sw_to_hw(struct mlx5dr_domain *dmn,
__be64 *sw_action,
__be64 *hw_action,
const struct dr_action_modify_field_conv **ret_hw_info)
{
const struct dr_action_modify_field_conv *hw_action_info;
u8 offset, length, max_length, action;
u16 sw_field;
u8 hw_opcode;
u32 data;
/* Get SW modify action data */
action = MLX5_GET(set_action_in, sw_action, action_type);
length = MLX5_GET(set_action_in, sw_action, length);
offset = MLX5_GET(set_action_in, sw_action, offset);
sw_field = MLX5_GET(set_action_in, sw_action, field);
data = MLX5_GET(set_action_in, sw_action, data);
/* Convert SW data to HW modify action format */
hw_action_info = dr_action_modify_get_hw_info(sw_field);
if (!hw_action_info) {
mlx5dr_dbg(dmn, "Modify action invalid field given\n");
return -EINVAL;
}
max_length = hw_action_info->end - hw_action_info->start + 1;
switch (action) {
case MLX5_ACTION_TYPE_SET:
hw_opcode = MLX5DR_ACTION_MDFY_HW_OP_SET;
/* PRM defines that length zero specific length of 32bits */
if (!length)
length = 32;
if (length + offset > max_length) {
mlx5dr_dbg(dmn, "Modify action length + offset exceeds limit\n");
return -EINVAL;
}
break;
case MLX5_ACTION_TYPE_ADD:
hw_opcode = MLX5DR_ACTION_MDFY_HW_OP_ADD;
offset = 0;
length = max_length;
break;
default:
mlx5dr_info(dmn, "Unsupported action_type for modify action\n");
return -EOPNOTSUPP;
}
MLX5_SET(dr_action_hw_set, hw_action, opcode, hw_opcode);
MLX5_SET(dr_action_hw_set, hw_action, destination_field_code,
hw_action_info->hw_field);
MLX5_SET(dr_action_hw_set, hw_action, destination_left_shifter,
hw_action_info->start + offset);
MLX5_SET(dr_action_hw_set, hw_action, destination_length,
length == 32 ? 0 : length);
MLX5_SET(dr_action_hw_set, hw_action, inline_data, data);
*ret_hw_info = hw_action_info;
return 0;
}
static int
dr_action_modify_check_field_limitation(struct mlx5dr_domain *dmn,
const __be64 *sw_action)
{
u16 sw_field;
u8 action;
sw_field = MLX5_GET(set_action_in, sw_action, field);
action = MLX5_GET(set_action_in, sw_action, action_type);
/* Check if SW field is supported in current domain (RX/TX) */
if (action == MLX5_ACTION_TYPE_SET) {
if (sw_field == MLX5_ACTION_IN_FIELD_METADATA_REG_A) {
if (dmn->type != MLX5DR_DOMAIN_TYPE_NIC_TX) {
mlx5dr_dbg(dmn, "Unsupported field %d for RX/FDB set action\n",
sw_field);
return -EINVAL;
}
}
if (sw_field == MLX5_ACTION_IN_FIELD_METADATA_REG_B) {
if (dmn->type != MLX5DR_DOMAIN_TYPE_NIC_RX) {
mlx5dr_dbg(dmn, "Unsupported field %d for TX/FDB set action\n",
sw_field);
return -EINVAL;
}
}
} else if (action == MLX5_ACTION_TYPE_ADD) {
if (sw_field != MLX5_ACTION_IN_FIELD_OUT_IP_TTL &&
sw_field != MLX5_ACTION_IN_FIELD_OUT_IPV6_HOPLIMIT &&
sw_field != MLX5_ACTION_IN_FIELD_OUT_TCP_SEQ_NUM &&
sw_field != MLX5_ACTION_IN_FIELD_OUT_TCP_ACK_NUM) {
mlx5dr_dbg(dmn, "Unsupported field %d for add action\n", sw_field);
return -EINVAL;
}
} else {
mlx5dr_info(dmn, "Unsupported action %d modify action\n", action);
return -EOPNOTSUPP;
}
return 0;
}
static bool
dr_action_modify_check_is_ttl_modify(const u64 *sw_action)
{
u16 sw_field = MLX5_GET(set_action_in, sw_action, field);
return sw_field == MLX5_ACTION_IN_FIELD_OUT_IP_TTL;
}
static int dr_actions_convert_modify_header(struct mlx5dr_domain *dmn,
u32 max_hw_actions,
u32 num_sw_actions,
__be64 sw_actions[],
__be64 hw_actions[],
u32 *num_hw_actions,
bool *modify_ttl)
{
const struct dr_action_modify_field_conv *hw_action_info;
u16 hw_field = MLX5DR_ACTION_MDFY_HW_FLD_RESERVED;
u32 l3_type = MLX5DR_ACTION_MDFY_HW_HDR_L3_NONE;
u32 l4_type = MLX5DR_ACTION_MDFY_HW_HDR_L4_NONE;
int ret, i, hw_idx = 0;
__be64 *sw_action;
__be64 hw_action;
*modify_ttl = false;
for (i = 0; i < num_sw_actions; i++) {
sw_action = &sw_actions[i];
ret = dr_action_modify_check_field_limitation(dmn, sw_action);
if (ret)
return ret;
if (!(*modify_ttl))
*modify_ttl = dr_action_modify_check_is_ttl_modify(sw_action);
/* Convert SW action to HW action */
ret = dr_action_modify_sw_to_hw(dmn,
sw_action,
&hw_action,
&hw_action_info);
if (ret)
return ret;
/* Due to a HW limitation we cannot modify 2 different L3 types */
if (l3_type && hw_action_info->l3_type &&
hw_action_info->l3_type != l3_type) {
mlx5dr_dbg(dmn, "Action list can't support two different L3 types\n");
return -EINVAL;
}
if (hw_action_info->l3_type)
l3_type = hw_action_info->l3_type;
/* Due to a HW limitation we cannot modify two different L4 types */
if (l4_type && hw_action_info->l4_type &&
hw_action_info->l4_type != l4_type) {
mlx5dr_dbg(dmn, "Action list can't support two different L4 types\n");
return -EINVAL;
}
if (hw_action_info->l4_type)
l4_type = hw_action_info->l4_type;
/* HW reads and executes two actions at once this means we
* need to create a gap if two actions access the same field
*/
if ((hw_idx % 2) && hw_field == hw_action_info->hw_field) {
/* Check if after gap insertion the total number of HW
* modify actions doesn't exceeds the limit
*/
hw_idx++;
if ((num_sw_actions + hw_idx - i) >= max_hw_actions) {
mlx5dr_dbg(dmn, "Modify header action number exceeds HW limit\n");
return -EINVAL;
}
}
hw_field = hw_action_info->hw_field;
hw_actions[hw_idx] = hw_action;
hw_idx++;
}
*num_hw_actions = hw_idx;
return 0;
}
static int dr_action_create_modify_action(struct mlx5dr_domain *dmn,
size_t actions_sz,
__be64 actions[],
struct mlx5dr_action *action)
{
struct mlx5dr_icm_chunk *chunk;
u32 max_hw_actions;
u32 num_hw_actions;
u32 num_sw_actions;
__be64 *hw_actions;
bool modify_ttl;
int ret;
num_sw_actions = actions_sz / DR_MODIFY_ACTION_SIZE;
max_hw_actions = mlx5dr_icm_pool_chunk_size_to_entries(DR_CHUNK_SIZE_16);
if (num_sw_actions > max_hw_actions) {
mlx5dr_dbg(dmn, "Max number of actions %d exceeds limit %d\n",
num_sw_actions, max_hw_actions);
return -EINVAL;
}
chunk = mlx5dr_icm_alloc_chunk(dmn->action_icm_pool, DR_CHUNK_SIZE_16);
if (!chunk)
return -ENOMEM;
hw_actions = kcalloc(1, max_hw_actions * DR_MODIFY_ACTION_SIZE, GFP_KERNEL);
if (!hw_actions) {
ret = -ENOMEM;
goto free_chunk;
}
ret = dr_actions_convert_modify_header(dmn,
max_hw_actions,
num_sw_actions,
actions,
hw_actions,
&num_hw_actions,
&modify_ttl);
if (ret)
goto free_hw_actions;
action->rewrite.chunk = chunk;
action->rewrite.modify_ttl = modify_ttl;
action->rewrite.data = (u8 *)hw_actions;
action->rewrite.num_of_actions = num_hw_actions;
action->rewrite.index = (chunk->icm_addr -
dmn->info.caps.hdr_modify_icm_addr) /
ACTION_CACHE_LINE_SIZE;
ret = mlx5dr_send_postsend_action(dmn, action);
if (ret)
goto free_hw_actions;
return 0;
free_hw_actions:
kfree(hw_actions);
free_chunk:
mlx5dr_icm_free_chunk(chunk);
return ret;
}
struct mlx5dr_action *
mlx5dr_action_create_modify_header(struct mlx5dr_domain *dmn,
u32 flags,
size_t actions_sz,
__be64 actions[])
{
struct mlx5dr_action *action;
int ret = 0;
refcount_inc(&dmn->refcount);
if (actions_sz % DR_MODIFY_ACTION_SIZE) {
mlx5dr_dbg(dmn, "Invalid modify actions size provided\n");
goto dec_ref;
}
action = dr_action_create_generic(DR_ACTION_TYP_MODIFY_HDR);
if (!action)
goto dec_ref;
action->rewrite.dmn = dmn;
ret = dr_action_create_modify_action(dmn,
actions_sz,
actions,
action);
if (ret) {
mlx5dr_dbg(dmn, "Failed creating modify header action %d\n", ret);
goto free_action;
}
return action;
free_action:
kfree(action);
dec_ref:
refcount_dec(&dmn->refcount);
return NULL;
}
struct mlx5dr_action *
mlx5dr_action_create_dest_vport(struct mlx5dr_domain *dmn,
u32 vport, u8 vhca_id_valid,
u16 vhca_id)
{
struct mlx5dr_cmd_vport_cap *vport_cap;
struct mlx5dr_domain *vport_dmn;
struct mlx5dr_action *action;
u8 peer_vport;
peer_vport = vhca_id_valid && (vhca_id != dmn->info.caps.gvmi);
vport_dmn = peer_vport ? dmn->peer_dmn : dmn;
if (!vport_dmn) {
mlx5dr_dbg(dmn, "No peer vport domain for given vhca_id\n");
return NULL;
}
if (vport_dmn->type != MLX5DR_DOMAIN_TYPE_FDB) {
mlx5dr_dbg(dmn, "Domain doesn't support vport actions\n");
return NULL;
}
vport_cap = mlx5dr_get_vport_cap(&vport_dmn->info.caps, vport);
if (!vport_cap) {
mlx5dr_dbg(dmn, "Failed to get vport %d caps\n", vport);
return NULL;
}
action = dr_action_create_generic(DR_ACTION_TYP_VPORT);
if (!action)
return NULL;
action->vport.dmn = vport_dmn;
action->vport.caps = vport_cap;
return action;
}
int mlx5dr_action_destroy(struct mlx5dr_action *action)
{
if (refcount_read(&action->refcount) > 1)
return -EBUSY;
switch (action->action_type) {
case DR_ACTION_TYP_FT:
if (!action->dest_tbl.is_fw_tbl)
refcount_dec(&action->dest_tbl.tbl->refcount);
break;
case DR_ACTION_TYP_TNL_L2_TO_L2:
refcount_dec(&action->reformat.dmn->refcount);
break;
case DR_ACTION_TYP_TNL_L3_TO_L2:
mlx5dr_icm_free_chunk(action->rewrite.chunk);
refcount_dec(&action->reformat.dmn->refcount);
break;
case DR_ACTION_TYP_L2_TO_TNL_L2:
case DR_ACTION_TYP_L2_TO_TNL_L3:
mlx5dr_cmd_destroy_reformat_ctx((action->reformat.dmn)->mdev,
action->reformat.reformat_id);
refcount_dec(&action->reformat.dmn->refcount);
break;
case DR_ACTION_TYP_MODIFY_HDR:
mlx5dr_icm_free_chunk(action->rewrite.chunk);
refcount_dec(&action->rewrite.dmn->refcount);
break;
default:
break;
}
kfree(action);
return 0;
}
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