https://fedoraproject.org/wiki/Changes/CompressKernelFirmware == Summary == Compress Kernel Firmwares to reduce on disk size == Owner == * Name: [[User:pbrobinson| Peter Robinson]] * Email: [mailto:pbrobinson@xxxxxxxxxxxxxxxxx| pbrobinson@xxxxxxxxxxxxxxxxx] == Detailed Description == Since the linux 5.3 kernel there has been support for loading firmware from xz compressed firmware. The upstream linux-firmware respository is now over 900Mb, not including other kernel firmware that are in Fedora but come from other sources. By compessing the firmware with "xz -C crc32", the only option currently supported in the kernel, we can reduce the ondisk size of the firmware by almost half. == Benefit to Fedora == Reduced on disk size of the firmware used by the kernel. == Scope == * Proposal owners: ** Add support upstream to the linux-firmware copy-firmware script to compess the firmware and create the symlinks to the compressed firmware ** Enable the upstream support in the Fedora linux-firmware package to compress the firmware at build time ** Enable compressing firmware in packages that contain firmware used by the kernel: eg alsa-sof-firmware, atmel-firmware, zd1211-firmware ** Enable the CONFIG_FW_LOADER_COMPRESS kernel option (long complete) * Other developers: ** No impact * Policies and guidelines: N/A (not a System Wide Change) * Trademark approval: N/A (not needed for this Change) == Upgrade/compatibility impact == There should be no upgrade impact, the support was added to the generic firmware loader interface in the kernel. == How To Test == Check devices that need firmware still work. Some devices that need firmware include: * GPU drivers such as nvidia, AMD and i915 * Wireless drivers such as those from Intel, Broadcom/Cyprus, TI, Qualcomm and Marvel * Wired network interfaces * Storage drivers * USB controllers and drivers == User Experience == Generally users should notice little to no difference. == Dependencies == N/A (not a System Wide Change) == Contingency Plan == * Contingency mechanism: Don't compress kernel firmware * Contingency deadline: GA * Blocks release? No. * Blocks product? No. == Documentation == N/A (not a System Wide Change) == Release Notes == N/A -- Ben Cotton He / Him / His Senior Program Manager, Fedora & CentOS Stream Red Hat TZ=America/Indiana/Indianapolis _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
