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Date: Fri, 8 Oct 2021 03:41:11 -0700 From: Jacob Keller <jacob.e.keller@...el.com> To: netdev@...r.kernel.org Cc: Jiri Pirko <jiri@...nulli.us>, Jakub Kicinski <kubakici@...pl>, Jacob Keller <jacob.e.keller@...el.com> Subject: [net-next 0/4] devlink: add dry run support for flash update This is an implementation of a previous idea I had discussed on the list at https://lore.kernel.org/netdev/51a6e7a33c7d40889c80bf37159f210e@intel.com/ The idea is to allow user space to query whether a given destructive devlink command would work without actually performing any actions. This is commonly referred to as a "dry run", and is intended to give tools and system administrators the ability to test things like flash image validity, or whether a given option is valid without having to risk performing the update when not sufficiently ready. The intention is that all "destructive" commands can be updated to support the new DEVLINK_ATTR_DRY_RUN, although this series only implements it for flash update. I expect we would want to support this for commands such as reload as well as other commands which perform some action with no interface to check state before hand. I tried to implement the DRY_RUN checks along with useful extended ACK messages so that even if a driver does not support DRY_RUN, some useful information can be retrieved. (i.e. the stack indicates that flash update is supported and will validate the other attributes first before rejecting the command due to inability to fully validate the run within the driver). Jacob Keller (4): ice: move and rename ice_check_for_pending_update ice: move ice_devlink_flash_update and merge with ice_flash_pldm_image devlink: add dry run attribute to flash update ice: support dry run of a flash update to validate firmware file Documentation/driver-api/pldmfw/index.rst | 10 ++ drivers/net/ethernet/intel/ice/ice_devlink.c | 53 +----- .../net/ethernet/intel/ice/ice_fw_update.c | 170 ++++++++++-------- .../net/ethernet/intel/ice/ice_fw_update.h | 7 +- include/linux/pldmfw.h | 5 + include/net/devlink.h | 2 + include/uapi/linux/devlink.h | 2 + lib/pldmfw/pldmfw.c | 12 ++ net/core/devlink.c | 19 +- 9 files changed, 145 insertions(+), 135 deletions(-) base-commit: c514fbb6231483b05c97eb22587188d4c453b28e -- 2.31.1.331.gb0c09ab8796f
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