This series goal is to enable support for updating the ice hardware flash using the devlink flash command.
The ice firmware update files are distributed using the file format described by the "PLDM for Firmware Update" standard: https://www.dmtf.org/documents/pmci/pldm-firmware-update-specification-100 Because this file format is standard, this series introduces a new library that handles the generic logic for parsing the PLDM file header. The library uses a design that is very similar to the Mellanox mlxfw module. That is, a simple ops table is setup and device drivers instantiate an instance of the pldmfw library with the device specific operations. Doing so allows for each device to implement the low level behavior for how to interact with its firmware. This series includes the library and an implementation for the ice hardware. In addition, it includes a following patch with additional device parameters for controlling specific aspects of the update. I suspect that there is a better way to handle these parameters overall. Perhaps extensions to DEVLINK_CMD_FLASH_UPDATE? The main purpose of these parameters is to give additional control over the update choices. Specifically, Intel has flash update tools which provide similar functionality for other operating systems. Without these controls, we would not be able to replicate this functionality within Linux using the devlink interface. Because the PLDM file format is a standard and not something that is specific to the Intel hardware, I opted to place this update library in lib/pldmfw. I should note that while I tried to make the library generic, it does not attempt to mimic the complete "Update Agent" as defined in the standard. This is mostly due to the fact that the actual interfaces exposed to software for the ice hardware would not allow this. This series is currently based on top of Jeff Kirsher's dev-queue, as it relies on some cleanup of the device capabilities code that was recently published. https://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git/log/?h=dev-queue Cudzilo, Szymon T (1): ice: Add AdminQ commands for FW update Jacek Naczyk (1): ice: Add support for unified NVM update flow capability Jacob Keller (4): ice: add flags indicating pending update of firmware module Add pldmfw library for PLDM firmware update ice: implement device flash update via devlink ice: implement devlink parameters to control flash update Documentation/driver-api/index.rst | 1 + .../driver-api/pldmfw/driver-ops.rst | 56 ++ .../driver-api/pldmfw/file-format.rst | 203 ++++ Documentation/driver-api/pldmfw/index.rst | 72 ++ Documentation/networking/devlink/ice.rst | 46 + MAINTAINERS | 7 + drivers/net/ethernet/intel/Kconfig | 1 + drivers/net/ethernet/intel/ice/Makefile | 1 + drivers/net/ethernet/intel/ice/ice.h | 29 + .../net/ethernet/intel/ice/ice_adminq_cmd.h | 83 ++ drivers/net/ethernet/intel/ice/ice_common.c | 21 +- drivers/net/ethernet/intel/ice/ice_common.h | 4 +- drivers/net/ethernet/intel/ice/ice_devlink.c | 229 ++++- .../net/ethernet/intel/ice/ice_fw_update.c | 817 ++++++++++++++++ .../net/ethernet/intel/ice/ice_fw_update.h | 12 + drivers/net/ethernet/intel/ice/ice_main.c | 154 +++ drivers/net/ethernet/intel/ice/ice_nvm.c | 186 ++++ drivers/net/ethernet/intel/ice/ice_nvm.h | 16 + drivers/net/ethernet/intel/ice/ice_type.h | 12 + include/linux/pldmfw.h | 165 ++++ lib/Kconfig | 4 + lib/Makefile | 3 + lib/pldmfw/Makefile | 2 + lib/pldmfw/pldmfw.c | 879 ++++++++++++++++++ lib/pldmfw/pldmfw_private.h | 238 +++++ 25 files changed, 3237 insertions(+), 4 deletions(-) create mode 100644 Documentation/driver-api/pldmfw/driver-ops.rst create mode 100644 Documentation/driver-api/pldmfw/file-format.rst create mode 100644 Documentation/driver-api/pldmfw/index.rst create mode 100644 drivers/net/ethernet/intel/ice/ice_fw_update.c create mode 100644 drivers/net/ethernet/intel/ice/ice_fw_update.h create mode 100644 include/linux/pldmfw.h create mode 100644 lib/pldmfw/Makefile create mode 100644 lib/pldmfw/pldmfw.c create mode 100644 lib/pldmfw/pldmfw_private.h -- 2.27.0.353.gb9a2d1a0207f
