]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
net/mlx5: FPGA, Add SBU infrastructure
authorIlan Tayari <ilant@mellanox.com>
Tue, 18 Apr 2017 10:10:41 +0000 (13:10 +0300)
committerSaeed Mahameed <saeedm@mellanox.com>
Tue, 27 Jun 2017 13:36:47 +0000 (16:36 +0300)
commita9956d35d199beb406727a4496bc5d7f09c82976
tree8b7bddf8e41ff0cd43250564a64ccbbb5592f4e5
parentc43051d72a8dc4a00d49db27292a76d26e8df7af
net/mlx5: FPGA, Add SBU infrastructure

Add interface to initialize and interact with Innova FPGA SBU
connections.
A client driver may use these functions to set up a high-speed DMA
connection with its SBU hardware logic, and send/receive messages
over this connection.

A later patch in this patchset will make use of these functions for
Innova IPSec offload in mlx5 Ethernet driver.

Add commands to retrieve Innova FPGA SBU capabilities, and to
read/write Innova FPGA configuration space registers and memory,
over internal I2C.

At high level, the FPGA configuration space is divided such:
 0x00000000 - 0x007fffff is reserved for the SBU
 0x00800000 - 0xffffffff is reserved for the Shell
0x400000000 - ...        is DDR memory

A later patchset will add support for accessing FPGA CrSpace and memory
over a high-speed connection. This is the reason for the ACCESS_TYPE
enumeration, which currently only supports I2C.

Signed-off-by: Ilan Tayari <ilant@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
drivers/net/ethernet/mellanox/mlx5/core/Makefile
drivers/net/ethernet/mellanox/mlx5/core/fpga/cmd.c
drivers/net/ethernet/mellanox/mlx5/core/fpga/cmd.h
drivers/net/ethernet/mellanox/mlx5/core/fpga/sdk.c [new file with mode: 0644]
drivers/net/ethernet/mellanox/mlx5/core/fpga/sdk.h
include/linux/mlx5/device.h
include/linux/mlx5/driver.h
include/linux/mlx5/mlx5_ifc.h
include/linux/mlx5/mlx5_ifc_fpga.h