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authorOren Sidi <osidi@nvidia.com>2025-07-17 09:48:14 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-08-28 16:34:50 +0200
commitaeeea0293f797a56470ec5c9dd2a10769f1b28e2 (patch)
treed7c2d446f1ce75a43a3b2a84e54e9af0bbea44f1
parent285ed9ab9bf2c67a2d8a6ffc53d96f8c083500fc (diff)
net/mlx5: Add IFC bits and enums for buf_ownership
[ Upstream commit 6f09ee0b583cad4f2b6a82842c26235bee3d5c2e ] 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: 451d2849ea66 ("net/mlx5e: Query FW for buffer ownership") Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--include/linux/mlx5/mlx5_ifc.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 2c09df4ee574..83288df7bb45 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/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];