forked from OERV-BSP/u-boot
233fda6af6
Jerome Forissier <jerome.forissier@linaro.org> says: This series introduces threads and uses them to improve the performance of the USB bus scanning code and to implement background jobs in the shell via two new commands: 'spawn' and 'wait'. The threading framework is called 'uthread' and is inspired from the barebox threads [2]. setjmp() and longjmp() are used to save and restore contexts, as well as a non-standard extension called initjmp(). This new function is added in several patches, one for each architecture that supports HAVE_SETJMP. A new symbol is defined: HAVE_INITJMP. Two tests, one for initjmp() and one for the uthread scheduling, are added to the lib suite. After introducing threads and making schedule() and udelay() a thread re-scheduling point, the USB stack initialization is modified to benefit from concurrency when UTHREAD is enabled, where uthreads are used in usb_init() to initialize and scan multiple busses at the same time. The code was tested on arm64 and arm QEMU with 4 simulated XHCI buses and some devices. On this platform the USB scan takes 2.2 s instead of 5.6 s. Tested on i.MX93 EVK with two USB hubs, one ethernet adapter and one webcam on each, "usb start" takes 2.4 s instead of 4.6 s. Finally, the spawn and wait commands are introduced, allowing the use of threads from the shell. Tested on the i.MX93 EVK with a spinning HDD connected to USB1 and the network connected to ENET1. The USB plus DHCP init sequence "spawn usb start; spawn dhcp; wait" takes 4.5 seconds instead of 8 seconds for "usb start; dhcp". [1] https://patchwork.ozlabs.org/project/uboot/list/?series=446674 [2] https://github.com/barebox/barebox/blob/master/common/bthread.c Link: https://lore.kernel.org/r/20250418141114.2056981-1-jerome.forissier@linaro.org
This patch series adds support for ZFS listing and load to u-boot. To Enable zfs ls and load commands, modify the board specific config file with #define CONFIG_CMD_ZFS Steps to test: 1. After applying the patch, zfs specific commands can be seen in the boot loader prompt using UBOOT #help zfsload- load binary file from a ZFS file system zfsls - list files in a directory (default /) 2. To list the files in zfs pool, device or partition, execute zfsls <interface> <dev[:part]> [POOL/@/dir/file] For example: UBOOT #zfsls mmc 0:5 /rpool/@/usr/bin/ 3. To read and load a file from an ZFS formatted partition to RAM, execute zfsload <interface> <dev[:part]> [addr] [filename] [bytes] For example: UBOOT #zfsload mmc 2:2 0x30007fc0 /rpool/@/boot/uImage References : -- ZFS GRUB sources from Solaris GRUB-0.97 -- GRUB Bazaar repository Jorgen Lundman <lundman at lundman.net> 2012.