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Date: Fri, 29 Jan 2021 18:26:14 -0800
From: Saeed Mahameed <saeed@...nel.org>
To: Jakub Kicinski <kuba@...nel.org>
Cc: "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
linux-rdma@...r.kernel.org, Leon Romanovsky <leonro@...dia.com>,
Yevgeny Kliteynik <kliteyn@...dia.com>,
Alex Vesker <valex@...dia.com>,
Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 07/11] net/mlx5: DR, Add STEv1 modify header logic
From: Yevgeny Kliteynik <kliteyn@...dia.com>
Add HW specific modify header fields and logic to STEv1 file.
Since STEv0 and STEv1 modify actions values are different, each
version has its own implementation.
Signed-off-by: Alex Vesker <valex@...dia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../mellanox/mlx5/core/steering/dr_ste_v1.c | 269 ++++++++++++++++++
.../mlx5/core/steering/mlx5_ifc_dr_ste_v1.h | 4 +
2 files changed, 273 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c
index 02bb3a28cfa1..42b853fa3465 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c
@@ -95,6 +95,159 @@ enum dr_ste_v1_action_id {
DR_STE_V1_ACTION_ID_SPECIAL_ENCAP_L3 = 0x22,
};
+enum {
+ DR_STE_V1_ACTION_MDFY_FLD_L2_OUT_0 = 0x00,
+ DR_STE_V1_ACTION_MDFY_FLD_L2_OUT_1 = 0x01,
+ DR_STE_V1_ACTION_MDFY_FLD_L2_OUT_2 = 0x02,
+ DR_STE_V1_ACTION_MDFY_FLD_SRC_L2_OUT_0 = 0x08,
+ DR_STE_V1_ACTION_MDFY_FLD_SRC_L2_OUT_1 = 0x09,
+ DR_STE_V1_ACTION_MDFY_FLD_L3_OUT_0 = 0x0e,
+ DR_STE_V1_ACTION_MDFY_FLD_L4_OUT_0 = 0x18,
+ DR_STE_V1_ACTION_MDFY_FLD_L4_OUT_1 = 0x19,
+ DR_STE_V1_ACTION_MDFY_FLD_IPV4_OUT_0 = 0x40,
+ DR_STE_V1_ACTION_MDFY_FLD_IPV4_OUT_1 = 0x41,
+ DR_STE_V1_ACTION_MDFY_FLD_IPV6_DST_OUT_0 = 0x44,
+ DR_STE_V1_ACTION_MDFY_FLD_IPV6_DST_OUT_1 = 0x45,
+ DR_STE_V1_ACTION_MDFY_FLD_IPV6_DST_OUT_2 = 0x46,
+ DR_STE_V1_ACTION_MDFY_FLD_IPV6_DST_OUT_3 = 0x47,
+ DR_STE_V1_ACTION_MDFY_FLD_IPV6_SRC_OUT_0 = 0x4c,
+ DR_STE_V1_ACTION_MDFY_FLD_IPV6_SRC_OUT_1 = 0x4d,
+ DR_STE_V1_ACTION_MDFY_FLD_IPV6_SRC_OUT_2 = 0x4e,
+ DR_STE_V1_ACTION_MDFY_FLD_IPV6_SRC_OUT_3 = 0x4f,
+ DR_STE_V1_ACTION_MDFY_FLD_TCP_MISC_0 = 0x5e,
+ DR_STE_V1_ACTION_MDFY_FLD_TCP_MISC_1 = 0x5f,
+ DR_STE_V1_ACTION_MDFY_FLD_METADATA_2_CQE = 0x7b,
+ DR_STE_V1_ACTION_MDFY_FLD_GNRL_PURPOSE = 0x7c,
+ DR_STE_V1_ACTION_MDFY_FLD_REGISTER_2 = 0x8c,
+ DR_STE_V1_ACTION_MDFY_FLD_REGISTER_3 = 0x8d,
+ DR_STE_V1_ACTION_MDFY_FLD_REGISTER_4 = 0x8e,
+ DR_STE_V1_ACTION_MDFY_FLD_REGISTER_5 = 0x8f,
+ DR_STE_V1_ACTION_MDFY_FLD_REGISTER_6 = 0x90,
+ DR_STE_V1_ACTION_MDFY_FLD_REGISTER_7 = 0x91,
+};
+
+static const struct mlx5dr_ste_action_modify_field dr_ste_v1_action_modify_field_arr[] = {
+ [MLX5_ACTION_IN_FIELD_OUT_SMAC_47_16] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_SRC_L2_OUT_0, .start = 0, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_SMAC_15_0] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_SRC_L2_OUT_1, .start = 16, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_ETHERTYPE] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_L2_OUT_1, .start = 0, .end = 15,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_DMAC_47_16] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_L2_OUT_0, .start = 0, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_DMAC_15_0] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_L2_OUT_1, .start = 16, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_IP_DSCP] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_L3_OUT_0, .start = 18, .end = 23,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_TCP_FLAGS] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_L4_OUT_1, .start = 16, .end = 24,
+ .l4_type = DR_STE_ACTION_MDFY_TYPE_L4_TCP,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_TCP_SPORT] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_L4_OUT_0, .start = 16, .end = 31,
+ .l4_type = DR_STE_ACTION_MDFY_TYPE_L4_TCP,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_TCP_DPORT] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_L4_OUT_0, .start = 0, .end = 15,
+ .l4_type = DR_STE_ACTION_MDFY_TYPE_L4_TCP,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_IP_TTL] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_L3_OUT_0, .start = 8, .end = 15,
+ .l3_type = DR_STE_ACTION_MDFY_TYPE_L3_IPV4,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_IPV6_HOPLIMIT] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_L3_OUT_0, .start = 8, .end = 15,
+ .l3_type = DR_STE_ACTION_MDFY_TYPE_L3_IPV6,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_UDP_SPORT] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_L4_OUT_0, .start = 16, .end = 31,
+ .l4_type = DR_STE_ACTION_MDFY_TYPE_L4_UDP,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_UDP_DPORT] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_L4_OUT_0, .start = 0, .end = 15,
+ .l4_type = DR_STE_ACTION_MDFY_TYPE_L4_UDP,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_SIPV6_127_96] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_IPV6_SRC_OUT_0, .start = 0, .end = 31,
+ .l3_type = DR_STE_ACTION_MDFY_TYPE_L3_IPV6,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_SIPV6_95_64] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_IPV6_SRC_OUT_1, .start = 0, .end = 31,
+ .l3_type = DR_STE_ACTION_MDFY_TYPE_L3_IPV6,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_SIPV6_63_32] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_IPV6_SRC_OUT_2, .start = 0, .end = 31,
+ .l3_type = DR_STE_ACTION_MDFY_TYPE_L3_IPV6,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_SIPV6_31_0] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_IPV6_SRC_OUT_3, .start = 0, .end = 31,
+ .l3_type = DR_STE_ACTION_MDFY_TYPE_L3_IPV6,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_DIPV6_127_96] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_IPV6_DST_OUT_0, .start = 0, .end = 31,
+ .l3_type = DR_STE_ACTION_MDFY_TYPE_L3_IPV6,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_DIPV6_95_64] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_IPV6_DST_OUT_1, .start = 0, .end = 31,
+ .l3_type = DR_STE_ACTION_MDFY_TYPE_L3_IPV6,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_DIPV6_63_32] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_IPV6_DST_OUT_2, .start = 0, .end = 31,
+ .l3_type = DR_STE_ACTION_MDFY_TYPE_L3_IPV6,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_DIPV6_31_0] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_IPV6_DST_OUT_3, .start = 0, .end = 31,
+ .l3_type = DR_STE_ACTION_MDFY_TYPE_L3_IPV6,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_SIPV4] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_IPV4_OUT_0, .start = 0, .end = 31,
+ .l3_type = DR_STE_ACTION_MDFY_TYPE_L3_IPV4,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_DIPV4] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_IPV4_OUT_1, .start = 0, .end = 31,
+ .l3_type = DR_STE_ACTION_MDFY_TYPE_L3_IPV4,
+ },
+ [MLX5_ACTION_IN_FIELD_METADATA_REG_A] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_GNRL_PURPOSE, .start = 0, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_METADATA_REG_B] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_METADATA_2_CQE, .start = 0, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_METADATA_REG_C_0] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_REGISTER_6, .start = 0, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_METADATA_REG_C_1] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_REGISTER_7, .start = 0, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_METADATA_REG_C_2] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_REGISTER_4, .start = 0, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_METADATA_REG_C_3] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_REGISTER_5, .start = 0, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_METADATA_REG_C_4] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_REGISTER_2, .start = 0, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_METADATA_REG_C_5] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_REGISTER_3, .start = 0, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_TCP_SEQ_NUM] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_TCP_MISC_0, .start = 0, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_TCP_ACK_NUM] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_TCP_MISC_1, .start = 0, .end = 31,
+ },
+ [MLX5_ACTION_IN_FIELD_OUT_FIRST_VID] = {
+ .hw_field = DR_STE_V1_ACTION_MDFY_FLD_L2_OUT_2, .start = 0, .end = 15,
+ },
+};
+
static void dr_ste_v1_set_entry_type(u8 *hw_ste_p, u8 entry_type)
{
MLX5_SET(ste_match_bwc_v1, hw_ste_p, entry_format, entry_type);
@@ -476,6 +629,116 @@ static void dr_ste_v1_set_actions_rx(struct mlx5dr_domain *dmn,
dr_ste_v1_set_hit_addr(last_ste, attr->final_icm_addr, 1);
}
+static void dr_ste_v1_set_action_set(u8 *d_action,
+ u8 hw_field,
+ u8 shifter,
+ u8 length,
+ u32 data)
+{
+ shifter += MLX5_MODIFY_HEADER_V1_QW_OFFSET;
+ MLX5_SET(ste_double_action_set_v1, d_action, action_id, DR_STE_V1_ACTION_ID_SET);
+ MLX5_SET(ste_double_action_set_v1, d_action, destination_dw_offset, hw_field);
+ MLX5_SET(ste_double_action_set_v1, d_action, destination_left_shifter, shifter);
+ MLX5_SET(ste_double_action_set_v1, d_action, destination_length, length);
+ MLX5_SET(ste_double_action_set_v1, d_action, inline_data, data);
+}
+
+static void dr_ste_v1_set_action_add(u8 *d_action,
+ u8 hw_field,
+ u8 shifter,
+ u8 length,
+ u32 data)
+{
+ shifter += MLX5_MODIFY_HEADER_V1_QW_OFFSET;
+ MLX5_SET(ste_double_action_add_v1, d_action, action_id, DR_STE_V1_ACTION_ID_ADD);
+ MLX5_SET(ste_double_action_add_v1, d_action, destination_dw_offset, hw_field);
+ MLX5_SET(ste_double_action_add_v1, d_action, destination_left_shifter, shifter);
+ MLX5_SET(ste_double_action_add_v1, d_action, destination_length, length);
+ MLX5_SET(ste_double_action_add_v1, d_action, add_value, data);
+}
+
+static void dr_ste_v1_set_action_copy(u8 *d_action,
+ u8 dst_hw_field,
+ u8 dst_shifter,
+ u8 dst_len,
+ u8 src_hw_field,
+ u8 src_shifter)
+{
+ dst_shifter += MLX5_MODIFY_HEADER_V1_QW_OFFSET;
+ src_shifter += MLX5_MODIFY_HEADER_V1_QW_OFFSET;
+ MLX5_SET(ste_double_action_copy_v1, d_action, action_id, DR_STE_V1_ACTION_ID_COPY);
+ MLX5_SET(ste_double_action_copy_v1, d_action, destination_dw_offset, dst_hw_field);
+ MLX5_SET(ste_double_action_copy_v1, d_action, destination_left_shifter, dst_shifter);
+ MLX5_SET(ste_double_action_copy_v1, d_action, destination_length, dst_len);
+ MLX5_SET(ste_double_action_copy_v1, d_action, source_dw_offset, src_hw_field);
+ MLX5_SET(ste_double_action_copy_v1, d_action, source_right_shifter, src_shifter);
+}
+
+#define DR_STE_DECAP_L3_ACTION_NUM 8
+#define DR_STE_L2_HDR_MAX_SZ 20
+
+static int dr_ste_v1_set_action_decap_l3_list(void *data,
+ u32 data_sz,
+ u8 *hw_action,
+ u32 hw_action_sz,
+ u16 *used_hw_action_num)
+{
+ u8 padded_data[DR_STE_L2_HDR_MAX_SZ] = {};
+ void *data_ptr = padded_data;
+ u16 used_actions = 0;
+ u32 inline_data_sz;
+ u32 i;
+
+ if (hw_action_sz / DR_STE_ACTION_DOUBLE_SZ < DR_STE_DECAP_L3_ACTION_NUM)
+ return -EINVAL;
+
+ memcpy(padded_data, data, data_sz);
+
+ /* Remove L2L3 outer headers */
+ MLX5_SET(ste_single_action_remove_header_v1, hw_action, action_id,
+ DR_STE_V1_ACTION_ID_REMOVE_HEADER_TO_HEADER);
+ MLX5_SET(ste_single_action_remove_header_v1, hw_action, decap, 1);
+ MLX5_SET(ste_single_action_remove_header_v1, hw_action, vni_to_cqe, 1);
+ MLX5_SET(ste_single_action_remove_header_v1, hw_action, end_anchor,
+ DR_STE_HEADER_ANCHOR_INNER_IPV6_IPV4);
+ hw_action += DR_STE_ACTION_DOUBLE_SZ;
+ used_actions++; /* Remove and NOP are a single double action */
+
+ inline_data_sz =
+ MLX5_FLD_SZ_BYTES(ste_double_action_insert_with_inline_v1, inline_data);
+
+ /* Add the new header inline + 2 extra bytes */
+ for (i = 0; i < data_sz / inline_data_sz + 1; i++) {
+ void *addr_inline;
+
+ MLX5_SET(ste_double_action_insert_with_inline_v1, hw_action, action_id,
+ DR_STE_V1_ACTION_ID_INSERT_INLINE);
+ /* The hardware expects here offset to words (2 bytes) */
+ MLX5_SET(ste_double_action_insert_with_inline_v1, hw_action, start_offset,
+ i * 2);
+
+ /* Copy bytes one by one to avoid endianness problem */
+ addr_inline = MLX5_ADDR_OF(ste_double_action_insert_with_inline_v1,
+ hw_action, inline_data);
+ memcpy(addr_inline, data_ptr, inline_data_sz);
+ hw_action += DR_STE_ACTION_DOUBLE_SZ;
+ data_ptr += inline_data_sz;
+ used_actions++;
+ }
+
+ /* Remove 2 extra bytes */
+ MLX5_SET(ste_single_action_remove_header_size_v1, hw_action, action_id,
+ DR_STE_V1_ACTION_ID_REMOVE_BY_SIZE);
+ MLX5_SET(ste_single_action_remove_header_size_v1, hw_action, start_offset, data_sz / 2);
+ /* The hardware expects here size in words (2 bytes) */
+ MLX5_SET(ste_single_action_remove_header_size_v1, hw_action, remove_size, 1);
+ used_actions++;
+
+ *used_hw_action_num = used_actions;
+
+ return 0;
+}
+
static void dr_ste_v1_build_eth_l2_src_dst_bit_mask(struct mlx5dr_match_param *value,
bool inner, u8 *bit_mask)
{
@@ -1339,4 +1602,10 @@ struct mlx5dr_ste_ctx ste_ctx_v1 = {
/* Actions */
.set_actions_rx = &dr_ste_v1_set_actions_rx,
.set_actions_tx = &dr_ste_v1_set_actions_tx,
+ .modify_field_arr_sz = ARRAY_SIZE(dr_ste_v1_action_modify_field_arr),
+ .modify_field_arr = dr_ste_v1_action_modify_field_arr,
+ .set_action_set = &dr_ste_v1_set_action_set,
+ .set_action_add = &dr_ste_v1_set_action_add,
+ .set_action_copy = &dr_ste_v1_set_action_copy,
+ .set_action_decap_l3_list = &dr_ste_v1_set_action_decap_l3_list,
};
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5_ifc_dr_ste_v1.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5_ifc_dr_ste_v1.h
index 31ecdb673625..34c2bd17a8b4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5_ifc_dr_ste_v1.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/mlx5_ifc_dr_ste_v1.h
@@ -4,6 +4,10 @@
#ifndef MLX5_IFC_DR_STE_V1_H
#define MLX5_IFC_DR_STE_V1_H
+enum mlx5_ifc_ste_v1_modify_hdr_offset {
+ MLX5_MODIFY_HEADER_V1_QW_OFFSET = 0x20,
+};
+
struct mlx5_ifc_ste_single_action_flow_tag_v1_bits {
u8 action_id[0x8];
u8 flow_tag[0x18];
--
2.29.2
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