net/mlx5: Add IFC bits and enums for buf_ownership

[ Upstream commit 6f09ee0 ]

Extend structure layouts and defines buf_ownership.
buf_ownership indicates whether the buffer is managed by SW or FW.

Signed-off-by: Oren Sidi <osidi@nvidia.com>
Reviewed-by: Alex Lazar <alazar@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1752734895-257735-3-git-send-email-tariqt@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Stable-dep-of: 451d284 ("net/mlx5e: Query FW for buffer ownership")
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: osidi-nvidia

include/linux/mlx5/mlx5_ifc.h

@@ -10460,8 +10460,16 @@ struct mlx5_ifc_pifr_reg_bits {
 	u8         port_filter_update_en[8][0x20];
 };
 
+enum {
+	MLX5_BUF_OWNERSHIP_UNKNOWN	= 0x0,
+	MLX5_BUF_OWNERSHIP_FW_OWNED	= 0x1,
+	MLX5_BUF_OWNERSHIP_SW_OWNED	= 0x2,
+};
+
 struct mlx5_ifc_pfcc_reg_bits {
-	u8         reserved_at_0[0x8];
+	u8         reserved_at_0[0x4];
+	u8	   buf_ownership[0x2];
+	u8	   reserved_at_6[0x2];
 	u8         local_port[0x8];
 	u8         reserved_at_10[0xb];
 	u8         ppan_mask_n[0x1];
@@ -10597,7 +10605,9 @@ struct mlx5_ifc_pcam_enhanced_features_bits {
 	u8         fec_200G_per_lane_in_pplm[0x1];
 	u8         reserved_at_1e[0x2a];
 	u8         fec_100G_per_lane_in_pplm[0x1];
-	u8         reserved_at_49[0x1f];
+	u8         reserved_at_49[0xa];
+	u8	   buffer_ownership[0x1];
+	u8	   resereved_at_54[0x14];
 	u8         fec_50G_per_lane_in_pplm[0x1];
 	u8         reserved_at_69[0x4];
 	u8         rx_icrc_encapsulated_counter[0x1];