From: Lior Nahmanson <liorna@nvidia.com>
Date: Mon, 5 Sep 2022 22:21:17 -0700
Subject: net/mlx5: Generalize Flow Context for new crypto fields
Patch-mainline: v6.1-rc1
Git-commit: e227ee990bf974f655ec3132b496409990f6634b
References: jsc#PED-1549
In order to support MACsec offload (and maybe some other crypto features
in the future), generalize flow action parameters / defines to be used by
crypto offlaods other than IPsec.
The following changes made:
ipsec_obj_id field at flow action context was changed to crypto_obj_id,
intreduced a new crypto_type field where IPsec is the default zero type
for backward compatibility.
Action ipsec_decrypt was changed to crypto_decrypt.
Action ipsec_encrypt was changed to crypto_encrypt.
IPsec offload code was updated accordingly for backward compatibility.
Signed-off-by: Lior Nahmanson <liorna@nvidia.com>
Reviewed-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c | 7 ++++---
drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c | 5 ++++-
include/linux/mlx5/fs.h | 7 ++++---
include/linux/mlx5/mlx5_ifc.h | 12 ++++++++----
4 files changed, 20 insertions(+), 11 deletions(-)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
@@ -388,7 +388,8 @@ static void setup_fte_common(struct mlx5
0xff, 16);
}
- flow_act->ipsec_obj_id = ipsec_obj_id;
+ flow_act->crypto.type = MLX5_FLOW_CONTEXT_ENCRYPT_DECRYPT_TYPE_IPSEC;
+ flow_act->crypto.obj_id = ipsec_obj_id;
flow_act->flags |= FLOW_ACT_NO_APPEND;
}
@@ -444,7 +445,7 @@ static int rx_add_rule(struct mlx5e_priv
}
flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
- MLX5_FLOW_CONTEXT_ACTION_IPSEC_DECRYPT |
+ MLX5_FLOW_CONTEXT_ACTION_CRYPTO_DECRYPT |
MLX5_FLOW_CONTEXT_ACTION_MOD_HDR;
dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
flow_act.modify_hdr = modify_hdr;
@@ -500,7 +501,7 @@ static int tx_add_rule(struct mlx5e_priv
MLX5_ETH_WQE_FT_META_IPSEC);
flow_act.action = MLX5_FLOW_CONTEXT_ACTION_ALLOW |
- MLX5_FLOW_CONTEXT_ACTION_IPSEC_ENCRYPT;
+ MLX5_FLOW_CONTEXT_ACTION_CRYPTO_ENCRYPT;
rule = mlx5_add_flow_rules(priv->ipsec->tx_fs->ft, spec, &flow_act, NULL, 0);
if (IS_ERR(rule)) {
err = PTR_ERR(rule);
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
@@ -577,7 +577,10 @@ static int mlx5_cmd_set_fte(struct mlx5_
MLX5_SET(flow_context, in_flow_context, modify_header_id,
fte->action.modify_hdr->id);
- MLX5_SET(flow_context, in_flow_context, ipsec_obj_id, fte->action.ipsec_obj_id);
+ MLX5_SET(flow_context, in_flow_context, encrypt_decrypt_type,
+ fte->action.crypto.type);
+ MLX5_SET(flow_context, in_flow_context, encrypt_decrypt_obj_id,
+ fte->action.crypto.obj_id);
vlan = MLX5_ADDR_OF(flow_context, in_flow_context, push_vlan);
--- a/include/linux/mlx5/fs.h
+++ b/include/linux/mlx5/fs.h
@@ -243,9 +243,10 @@ struct mlx5_flow_act {
u32 action;
struct mlx5_modify_hdr *modify_hdr;
struct mlx5_pkt_reformat *pkt_reformat;
- union {
- u32 ipsec_obj_id;
- };
+ struct mlx5_flow_act_crypto_params {
+ u8 type;
+ u32 obj_id;
+ } crypto;
u32 flags;
struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
struct ib_counters *counters;
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -3310,8 +3310,8 @@ enum {
MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH = 0x100,
MLX5_FLOW_CONTEXT_ACTION_VLAN_POP_2 = 0x400,
MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH_2 = 0x800,
- MLX5_FLOW_CONTEXT_ACTION_IPSEC_DECRYPT = 0x1000,
- MLX5_FLOW_CONTEXT_ACTION_IPSEC_ENCRYPT = 0x2000,
+ MLX5_FLOW_CONTEXT_ACTION_CRYPTO_DECRYPT = 0x1000,
+ MLX5_FLOW_CONTEXT_ACTION_CRYPTO_ENCRYPT = 0x2000,
MLX5_FLOW_CONTEXT_ACTION_EXECUTE_ASO = 0x4000,
};
@@ -3321,6 +3321,10 @@ enum {
MLX5_FLOW_CONTEXT_FLOW_SOURCE_LOCAL_VPORT = 0x2,
};
+enum {
+ MLX5_FLOW_CONTEXT_ENCRYPT_DECRYPT_TYPE_IPSEC = 0x0,
+};
+
struct mlx5_ifc_vlan_bits {
u8 ethtype[0x10];
u8 prio[0x3];
@@ -3374,7 +3378,7 @@ struct mlx5_ifc_flow_context_bits {
u8 extended_destination[0x1];
u8 reserved_at_81[0x1];
u8 flow_source[0x2];
- u8 reserved_at_84[0x4];
+ u8 encrypt_decrypt_type[0x4];
u8 destination_list_size[0x18];
u8 reserved_at_a0[0x8];
@@ -3386,7 +3390,7 @@ struct mlx5_ifc_flow_context_bits {
struct mlx5_ifc_vlan_bits push_vlan_2;
- u8 ipsec_obj_id[0x20];
+ u8 encrypt_decrypt_obj_id[0x20];
u8 reserved_at_140[0xc0];
struct mlx5_ifc_fte_match_param_bits match_value;