Messages in this thread | | | From | Russ Weight <> | Subject | [RFC PATCH 0/5] Firmware Upload Framework | Date | Wed, 10 Nov 2021 17:13:40 -0800 |
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The Firmware Upload framework provides a common API for uploading firmware files to target devices. An example use case involves FPGA devices that load FPGA, Card BMC, and firmware images from FLASH when the card boots. Users need the ability to update these firmware images while the card is in use.
Device drivers that instantiate the Firmware Upload class driver will interact with the target device to transfer and authenticate the firmware data. Uploads are performed in the context of a kernel worker thread in order to facilitate progress indicators during lengthy uploads.
This driver was previously submitted in the context of the FPGA sub- system as the "FPGA Image Load Framework", but the framework is generic enough to support other devices as well. The previous submission of this patch-set can be viewed here:
https://marc.info/?l=linux-kernel&m=163295640216820&w=2
The n3000bmc-sec-update driver is the first driver to use the Firmware Upload API. A recent version of these patches can be viewed here:
https://marc.info/?l=linux-kernel&m=163295697217095&w=2
I don't think I am duplicating any functionality that is currently covered in the firmware subsystem. I appreciate your feedback on these patches.
- Russ
Russ Weight (5): firmware: Create firmware upload framework firmware: upload: Enable firmware uploads firmware: upload: Signal eventfd when complete firmware: upload: Add status ioctl firmware: upload: Enable cancel of firmware upload
.../driver-api/firmware/firmware-upload.rst | 54 +++ Documentation/driver-api/firmware/index.rst | 1 + MAINTAINERS | 9 + drivers/firmware/Kconfig | 8 + drivers/firmware/Makefile | 1 + drivers/firmware/firmware-upload.c | 413 ++++++++++++++++++ include/linux/firmware/firmware-upload.h | 69 +++ include/uapi/linux/firmware-upload.h | 73 ++++ 8 files changed, 628 insertions(+) create mode 100644 Documentation/driver-api/firmware/firmware-upload.rst create mode 100644 drivers/firmware/firmware-upload.c create mode 100644 include/linux/firmware/firmware-upload.h create mode 100644 include/uapi/linux/firmware-upload.h
-- 2.25.1
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