This is a new round of the series adding fastboot over ethernet to barebox. Compared to the last version this contains some conceptual changes. First of all we no longer need executing pollers inside of pollers. Hopefully this makes it easier to follow the execution flow. Instead workqueues help to execute possibly longer living code with dependencies to other devices. Workqueues are used to trigger work from pollers. This is then executed when the command slice, previously known as idle slice, is released. To make sure pollers don't do things they are not allowed to we now have a assert_command_context() macro which warns when it is called from a poller. This is added to most filesystem operations as these definitely shouldn't be called from pollers. Besides fastboot over UDP also fastboot over USB and RATP are converted to use workqueues, so these also no longer call the commands they execute from pollers. To give an overview how barebox now handles pseudo parallel execution I wrote some documentation, see the last patch. Changes since last version: - add workqueue interface - convert fastboot USB and RATP to no longer call commands from pollers - add Documentation Daniel Glöckner (2): defconfigs: update renamed fastboot options fastboot: rename usbgadget.fastboot_* variables to fastboot.* Edmund Henniges (1): fastboot net: implement fastboot over UDP Sascha Hauer (16): Introduce slices Add workqueues ratp: Switch to workqueues net: Add a slice to struct eth_device net: mdiobus: Add slice usb: Add a slice to usb host controllers usbnet: Add slice net: Call net_poll() in a poller net: reply to ping requests usbnet: Be more friendly in the receive path globalvar: Add helper for deprecated variable names fastboot: remove double print usb: fastboot: execute commands in command context Add WARN_ONCE() macro fs: Warn when filesystem operations are called from a poller Documentation: Add document for parallel execution in barebox Documentation/devel/devel.rst | 14 + Documentation/devel/parallel-execution.rst | 92 ++++ Documentation/index.rst | 1 + Documentation/user/usb.rst | 4 +- arch/arm/configs/imx23_defconfig | 2 +- arch/arm/configs/imx28_defconfig | 2 +- arch/arm/configs/imx_v7_defconfig | 2 +- arch/arm/configs/imx_v8_defconfig | 2 +- arch/arm/configs/kindle-mx50_defconfig | 2 +- arch/arm/configs/omap_defconfig | 2 +- arch/arm/configs/zii_vf610_dev_defconfig | 2 +- commands/Kconfig | 8 + commands/usbgadget.c | 2 +- common/Makefile | 2 + common/fastboot.c | 30 +- common/globalvar.c | 54 ++- common/hush.c | 6 + common/poller.c | 9 +- common/ratp/ratp.c | 57 ++- common/slice.c | 335 ++++++++++++++ common/startup.c | 3 + common/usbgadget.c | 16 +- common/workqueue.c | 48 ++ drivers/net/phy/mdio_bus.c | 43 ++ drivers/net/usb/usbnet.c | 22 +- drivers/usb/core/usb.c | 12 +- drivers/usb/gadget/f_fastboot.c | 49 +- fs/fs.c | 35 ++ fs/nfs.c | 2 - fs/tftp.c | 2 - include/asm-generic/bug.h | 13 + include/fastboot.h | 6 + include/fastboot_net.h | 12 + include/globalvar.h | 5 + include/linux/phy.h | 38 +- include/net.h | 11 +- include/ratp_bb.h | 1 - include/slice.h | 42 ++ include/usb/usb.h | 8 +- include/usb/usbnet.h | 3 + include/work.h | 38 ++ lib/readline.c | 6 +- net/Kconfig | 10 + net/Makefile | 1 + net/dhcp.c | 1 - net/dns.c | 1 - net/eth.c | 84 +++- net/fastboot.c | 515 +++++++++++++++++++++ net/net.c | 60 ++- net/netconsole.c | 4 +- net/nfs.c | 1 - net/ping.c | 2 - net/sntp.c | 2 - 53 files changed, 1607 insertions(+), 117 deletions(-) create mode 100644 Documentation/devel/devel.rst create mode 100644 Documentation/devel/parallel-execution.rst create mode 100644 common/slice.c create mode 100644 common/workqueue.c create mode 100644 include/fastboot_net.h create mode 100644 include/slice.h create mode 100644 include/work.h create mode 100644 net/fastboot.c -- 2.27.0 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
