On 04.12.2015 15:27, poma wrote: > On 04.12.2015 10:40, Panu Matilainen wrote: >> Hi all, >> >> To follow-up on this thread from September-October: >> http://lists.freedesktop.org/archives/systemd-devel/2015-September/034427.html >> http://lists.freedesktop.org/archives/systemd-devel/2015-October/034551.html >> >> The driverctl utility has matured a bit from the earliest tyre-kicking >> version seen there and now lives at laiskiainen.org/git/?p=driverctl.git >> >> Since it has everything to do with udev this seems like a reasonable >> forum to advertise it a bit. Quoting from the README a bit: >> >>> driverctl is a tool for manipulating and inspecting the system >>> device driver choices. >>> >>> Devices are normally assigned to their sole designated kernel driver >>> by default. However in some situations it may be desireable to >>> override that default, for example to try an older driver to >>> work around a regression in a driver or to try an experimental alternative >>> driver. Another common use-case is pass-through drivers and driver >>> stubs to allow userspace to drive the device, such as in case of >>> virtualization. >>> >>> driverctl integrates with udev to support overriding >>> driver selection for both cold- and hotplugged devices from the >>> moment of discovery, but can also change already assigned drivers, >>> assuming they are not in use by the system. The driver overrides >>> created by driverctl are persistent across system reboots >>> by default. >> > >>> Usage >>> ----- >>> >>> Find devices currently driven by ixgbe driver: >>> >>> # driverctl -v list-devices | grep ixgbe >>> 0000:01:00.0 ixgbe (Ethernet 10G 4P X520/I350 rNDC) >>> 0000:01:00.1 ixgbe (Ethernet 10G 4P X520/I350 rNDC) >>> >>> Change them to use the vfio-pci driver: >>> # driverctl set-override 0000:01:00.0 vfio-pci >>> # driverctl set-override 0000:01:00.1 vfio-pci >>> >>> Find devices with driver overrides: >>> # driverctl -v list-devices|grep \\* >>> 0000:01:00.0 vfio-pci [*] (Ethernet 10G 4P X520/I350 rNDC) >>> 0000:01:00.1 vfio-pci [*] (Ethernet 10G 4P X520/I350 rNDC) >>> >>> Remove the override from slot 0000:01:00.1: >>> # driverctl unset-override 0000:01:00.1 >> >> The other reason for posting here is: is there interest in having such a >> utility would find home in udev/systemd? >> >> Note that I'm not trying to sell you the current shell-spaghetti >> implementation, its mostly just a demonstration of the interface which >> is modeled after the various *ctl utilities in systemd. The idea is to >> rewrite it properly in C anyway, but at this point it'd be useful to >> know from style/infrastructure/etc perspective whether there's interest >> in having such a thing included in systemd afterall. >> > > version 0.2? > driverctl + udevadm + add/edit/test/del udev-rules files (rather than working > with files directly) = udevctl™ > >
e.g. # udevctl --driver list-devices | set-override | unset-override ... # udevctl --admin control | hwdb | monitor ... # udevctl --rule add | edit | test | del ... ... _______________________________________________ systemd-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/systemd-devel
