Thread (6 messages) 6 messages, 3 authors, 3d ago
WARM3d REVIEWED: 1 (1M)

[PATCH mlx5-next 2/2] net/mlx5: ifc: Add PSP related fields

From: Tariq Toukan <tariqt@nvidia.com>
Date: 2026-07-13 08:44:24
Also in: linux-rdma, lkml
Subsystem: mellanox mlx5 ib driver, mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers: Leon Romanovsky, Saeed Mahameed, Tariq Toukan, Mark Bloch, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

From: Cosmin Ratiu <redacted>

This adds:
- misc_parameters_6, containing a few fields for matching PSP headers.
As this is the last misc_parameters field defined, retire the old
optimization added in commit [1] to not touch the reserved part.
- PSP decap action.
- PSP SPI header field pointer.

[1] commit 667cb65ae5ad ("net/mlx5: Don't store reserved part in FTEs
and FGs")

Signed-off-by: Cosmin Ratiu <redacted>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
---
 .../net/ethernet/mellanox/mlx5/core/fs_core.h   | 12 +-----------
 include/linux/mlx5/device.h                     |  1 +
 include/linux/mlx5/mlx5_ifc.h                   | 17 +++++++++++++++--
 3 files changed, 17 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
index dbaf33b537f7..906584345a02 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
@@ -214,17 +214,7 @@ struct mlx5_ft_underlay_qp {
 	u32 qpn;
 };
 
-#define MLX5_FTE_MATCH_PARAM_RESERVED	reserved_at_e00
-/* Calculate the fte_match_param length and without the reserved length.
- * Make sure the reserved field is the last.
- */
-#define MLX5_ST_SZ_DW_MATCH_PARAM					    \
-	((MLX5_BYTE_OFF(fte_match_param, MLX5_FTE_MATCH_PARAM_RESERVED) / sizeof(u32)) + \
-	 BUILD_BUG_ON_ZERO(MLX5_ST_SZ_BYTES(fte_match_param) !=		     \
-			   MLX5_FLD_SZ_BYTES(fte_match_param,		     \
-					     MLX5_FTE_MATCH_PARAM_RESERVED) +\
-			   MLX5_BYTE_OFF(fte_match_param,		     \
-					 MLX5_FTE_MATCH_PARAM_RESERVED)))
+#define MLX5_ST_SZ_DW_MATCH_PARAM MLX5_ST_SZ_DW(fte_match_param)
 
 struct fs_fte_action {
 	int				modify_mask;
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 07a25f264292..8cb321a9fb3d 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -1171,6 +1171,7 @@ enum {
 	MLX5_MATCH_MISC_PARAMETERS_3	= 1 << 4,
 	MLX5_MATCH_MISC_PARAMETERS_4	= 1 << 5,
 	MLX5_MATCH_MISC_PARAMETERS_5	= 1 << 6,
+	MLX5_MATCH_MISC_PARAMETERS_6	= 1 << 7,
 };
 
 enum {
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 7de01d4f1b5e..cf01922cf69f 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -508,7 +508,8 @@ struct mlx5_ifc_flow_table_prop_layout_bits {
 	u8         reformat_l2_to_l3_audp_tunnel[0x1];
 	u8         reformat_l3_audp_tunnel_to_l2[0x1];
 	u8         ignore_flow_level_rtc_valid[0x1];
-	u8         reserved_at_70[0x8];
+	u8         reserved_at_70[0x7];
+	u8         reformat_del_psp_transport[0x1];
 	u8         log_max_ft_num[0x8];
 
 	u8         reserved_at_80[0x10];
@@ -798,6 +799,15 @@ struct mlx5_ifc_fte_match_set_misc5_bits {
 	u8         reserved_at_100[0x100];
 };
 
+struct mlx5_ifc_fte_match_set_misc6_bits {
+	u8         reserved_at_0[0x1a];
+	u8         psp_version[0x4];
+	u8         reserved_at_1e[0x2];
+
+	u8         reserved_at_20[0x1e0];
+};
+
+
 struct mlx5_ifc_cmd_pas_bits {
 	u8         pa_h[0x20];
 
@@ -2339,7 +2349,7 @@ struct mlx5_ifc_fte_match_param_bits {
 
 	struct mlx5_ifc_fte_match_set_misc5_bits misc_parameters_5;
 
-	u8         reserved_at_e00[0x200];
+	struct mlx5_ifc_fte_match_set_misc6_bits misc_parameters_6;
 };
 
 enum {
@@ -6984,6 +6994,7 @@ enum {
 	MLX5_QUERY_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS_3 = 0x4,
 	MLX5_QUERY_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS_4 = 0x5,
 	MLX5_QUERY_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS_5 = 0x6,
+	MLX5_QUERY_FLOW_GROUP_IN_MATCH_CRITERIA_ENABLE_MISC_PARAMETERS_6 = 0x7,
 };
 
 struct mlx5_ifc_query_flow_group_out_bits {
@@ -7245,6 +7256,7 @@ enum mlx5_reformat_ctx_type {
 	MLX5_REFORMAT_TYPE_REMOVE_HDR = 0x10,
 	MLX5_REFORMAT_TYPE_ADD_MACSEC = 0x11,
 	MLX5_REFORMAT_TYPE_DEL_MACSEC = 0x12,
+	MLX5_REFORMAT_TYPE_REMOVE_PSP_TRANSPORT = 0x16,
 };
 
 struct mlx5_ifc_alloc_packet_reformat_context_in_bits {
@@ -7368,6 +7380,7 @@ enum {
 	MLX5_ACTION_IN_FIELD_OUT_EMD_47_32     = 0x6F,
 	MLX5_ACTION_IN_FIELD_OUT_EMD_31_0      = 0x70,
 	MLX5_ACTION_IN_FIELD_PSP_SYNDROME      = 0x71,
+	MLX5_ACTION_IN_FIELD_PSP_HEADER_1      = 0x78,
 };
 
 struct mlx5_ifc_alloc_modify_header_context_out_bits {
-- 
2.44.0
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