bianbu-repo-mirror/bianbu-linux-6.6
1
0
Fork 0
mirror of https://gitee.com/bianbu-linux/linux-6.6 synced 2025-04-26 14:17:26 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

fpga: mgr: add status for fpga-manager

Browse source 
This patch adds status sysfs interface for fpga manager, it's a
read only interface which allows user to get fpga manager status,
including full/partial reconfiguration error and other status
information. It adds a status callback to fpga_manager_ops too,
allows each fpga_manager driver to define its own method to
collect latest status from hardware.

The following sysfs file is created:
* /sys/class/fpga_manager/<fpga>/status
  Return status of fpga manager, including reconfiguration errors.

Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wu Hao 2018-06-30 08:53:10 +08:00 • committed by Greg Kroah-Hartman
parent 571d78bd45
commit ecb5fbe299
3 changed files with 61 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

9
include/linux/fpga/fpga-mgr.h
View file

@ -101,6 +101,7 @@ struct fpga_image_info {
* struct fpga_manager_ops - ops for low level fpga manager drivers
* @initial_header_size: Maximum number of bytes that should be passed into write_init
* @state: returns an enum value of the FPGA's state
* @status: returns status of the FPGA, including reconfiguration error code
* @write_init: prepare the FPGA to receive confuration data
* @write: write count bytes of configuration data to the FPGA
* @write_sg: write the scatter list of configuration data to the FPGA
@ -115,6 +116,7 @@ struct fpga_image_info {
struct fpga_manager_ops {
size_t initial_header_size;
enum fpga_mgr_states (*state)(struct fpga_manager *mgr);
u64 (*status)(struct fpga_manager *mgr);
int (*write_init)(struct fpga_manager *mgr,
struct fpga_image_info *info,
const char *buf, size_t count);
@ -126,6 +128,13 @@ struct fpga_manager_ops {
const struct attribute_group **groups;
};
/* FPGA manager status: Partial/Full Reconfiguration errors */
#define FPGA_MGR_STATUS_OPERATION_ERR BIT(0)
#define FPGA_MGR_STATUS_CRC_ERR BIT(1)
#define FPGA_MGR_STATUS_INCOMPATIBLE_IMAGE_ERR BIT(2)
#define FPGA_MGR_STATUS_IP_PROTOCOL_ERR BIT(3)
#define FPGA_MGR_STATUS_FIFO_OVERFLOW_ERR BIT(4)
/**
* struct fpga_manager - fpga manager structure
* @name: name of low level fpga manager