61 lines
2.5 KiB
Plaintext
61 lines
2.5 KiB
Plaintext
What: /sys/class/fpga_manager/<fpga>/name
|
|
Date: August 2015
|
|
KernelVersion: 4.3
|
|
Contact: Alan Tull <atull@opensource.altera.com>
|
|
Description: Name of low level fpga manager driver.
|
|
|
|
What: /sys/class/fpga_manager/<fpga>/state
|
|
Date: August 2015
|
|
KernelVersion: 4.3
|
|
Contact: Alan Tull <atull@opensource.altera.com>
|
|
Description: Read fpga manager state as a string.
|
|
The intent is to provide enough detail that if something goes
|
|
wrong during FPGA programming (something that the driver can't
|
|
fix) then userspace can know, i.e. if the firmware request
|
|
fails, that could be due to not being able to find the firmware
|
|
file.
|
|
|
|
This is a superset of FPGA states and fpga manager driver
|
|
states. The fpga manager driver is walking through these steps
|
|
to get the FPGA into a known operating state. It's a sequence,
|
|
though some steps may get skipped. Valid FPGA states will vary
|
|
by manufacturer; this is a superset.
|
|
|
|
* unknown = can't determine state
|
|
* power off = FPGA power is off
|
|
* power up = FPGA reports power is up
|
|
* reset = FPGA held in reset state
|
|
* firmware request = firmware class request in progress
|
|
* firmware request error = firmware request failed
|
|
* write init = preparing FPGA for programming
|
|
* write init error = Error while preparing FPGA for programming
|
|
* write = FPGA ready to receive image data
|
|
* write error = Error while programming
|
|
* write complete = Doing post programming steps
|
|
* write complete error = Error while doing post programming
|
|
* operating = FPGA is programmed and operating
|
|
|
|
What: /sys/class/fpga_manager/<fpga>/status
|
|
Date: June 2018
|
|
KernelVersion: 4.19
|
|
Contact: Wu Hao <hao.wu@intel.com>
|
|
Description: Read fpga manager status as a string.
|
|
If FPGA programming operation fails, it could be caused by crc
|
|
error or incompatible bitstream image. The intent of this
|
|
interface is to provide more detailed information for FPGA
|
|
programming errors to userspace. This is a list of strings for
|
|
the supported status.
|
|
|
|
* reconfig operation error - invalid operations detected by
|
|
reconfiguration hardware.
|
|
e.g. start reconfiguration
|
|
with errors not cleared
|
|
* reconfig CRC error - CRC error detected by
|
|
reconfiguration hardware.
|
|
* reconfig incompatible image - reconfiguration image is
|
|
incompatible with hardware
|
|
* reconfig IP protocol error - protocol errors detected by
|
|
reconfiguration hardware
|
|
* reconfig fifo overflow error - FIFO overflow detected by
|
|
reconfiguration hardware
|