From 2afa609f5c970185a8cae73f6a4caadf97fbea54 Mon Sep 17 00:00:00 2001 From: Inbar Karmy Date: Mon, 20 Nov 2017 18:06:20 +0200 Subject: net/mlx5e: PFC stall prevention support Implement set/get functions to configure PFC stall prevention timeout by tunables api through ethtool. By default the stall prevention timeout is configured to 8 sec. Timeout range is: 80-8000 msec. Enabling stall prevention with the auto timeout will set the timeout to 100 msec. Signed-off-by: Inbar Karmy Signed-off-by: Saeed Mahameed --- include/linux/mlx5/mlx5_ifc.h | 17 +++++++++++++---- include/linux/mlx5/port.h | 6 ++++++ 2 files changed, 19 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index c7d50eccff9e..f3200a9696d6 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -7833,7 +7833,11 @@ struct mlx5_ifc_pifr_reg_bits { struct mlx5_ifc_pfcc_reg_bits { u8 reserved_at_0[0x8]; u8 local_port[0x8]; - u8 reserved_at_10[0x10]; + u8 reserved_at_10[0xb]; + u8 ppan_mask_n[0x1]; + u8 minor_stall_mask[0x1]; + u8 critical_stall_mask[0x1]; + u8 reserved_at_1e[0x2]; u8 ppan[0x4]; u8 reserved_at_24[0x4]; @@ -7843,17 +7847,22 @@ struct mlx5_ifc_pfcc_reg_bits { u8 pptx[0x1]; u8 aptx[0x1]; - u8 reserved_at_42[0x6]; + u8 pptx_mask_n[0x1]; + u8 reserved_at_43[0x5]; u8 pfctx[0x8]; u8 reserved_at_50[0x10]; u8 pprx[0x1]; u8 aprx[0x1]; - u8 reserved_at_62[0x6]; + u8 pprx_mask_n[0x1]; + u8 reserved_at_63[0x5]; u8 pfcrx[0x8]; u8 reserved_at_70[0x10]; - u8 reserved_at_80[0x80]; + u8 device_stall_minor_watermark[0x10]; + u8 device_stall_critical_watermark[0x10]; + + u8 reserved_at_a0[0x60]; }; struct mlx5_ifc_pelc_reg_bits { diff --git a/include/linux/mlx5/port.h b/include/linux/mlx5/port.h index 035f0d4dc9fe..34aed6032f86 100644 --- a/include/linux/mlx5/port.h +++ b/include/linux/mlx5/port.h @@ -151,6 +151,12 @@ int mlx5_set_port_pfc(struct mlx5_core_dev *dev, u8 pfc_en_tx, u8 pfc_en_rx); int mlx5_query_port_pfc(struct mlx5_core_dev *dev, u8 *pfc_en_tx, u8 *pfc_en_rx); +int mlx5_set_port_stall_watermark(struct mlx5_core_dev *dev, + u16 stall_critical_watermark, + u16 stall_minor_watermark); +int mlx5_query_port_stall_watermark(struct mlx5_core_dev *dev, + u16 *stall_critical_watermark, u16 *stall_minor_watermark); + int mlx5_max_tc(struct mlx5_core_dev *mdev); int mlx5_set_port_prio_tc(struct mlx5_core_dev *mdev, u8 *prio_tc); -- cgit v1.2.3