From c43051d72a8dc4a00d49db27292a76d26e8df7af Mon Sep 17 00:00:00 2001 From: Ilan Tayari Date: Tue, 18 Apr 2017 12:54:27 +0300 Subject: net/mlx5: FPGA, Add SBU bypass and reset flows The Innova FPGA includes shell hardware and Sandbox-Unit (SBU) hardware. The shell hardware is handled by mlx5_core itself, while the SBU is handled by a client driver. Reset the SBU to a well-known initial state when initializing a new device, and set the FPGA to bypass mode when uninitializing a device. This allows the client driver to assume that its device has been reset when a new device is detected. During SBU reset, the FPGA is put into SBU-bypass mode. In this mode packets do not pass through the SBU, so it cannot affect the network data stream at all. A factory-image does not have an SBU, so skip these flows. Signed-off-by: Ilan Tayari Signed-off-by: Saeed Mahameed --- include/linux/mlx5/mlx5_ifc_fpga.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/mlx5_ifc_fpga.h b/include/linux/mlx5/mlx5_ifc_fpga.h index 30d4b697fab6..0694077c9634 100644 --- a/include/linux/mlx5/mlx5_ifc_fpga.h +++ b/include/linux/mlx5/mlx5_ifc_fpga.h @@ -108,6 +108,15 @@ struct mlx5_ifc_fpga_cap_bits { u8 reserved_at_500[0x300]; }; +enum { + MLX5_FPGA_CTRL_OPERATION_LOAD = 0x1, + MLX5_FPGA_CTRL_OPERATION_RESET = 0x2, + MLX5_FPGA_CTRL_OPERATION_FLASH_SELECT = 0x3, + MLX5_FPGA_CTRL_OPERATION_SANDBOX_BYPASS_ON = 0x4, + MLX5_FPGA_CTRL_OPERATION_SANDBOX_BYPASS_OFF = 0x5, + MLX5_FPGA_CTRL_OPERATION_RESET_SANDBOX = 0x6, +}; + struct mlx5_ifc_fpga_ctrl_bits { u8 reserved_at_0[0x8]; u8 operation[0x8]; -- cgit v1.2.3