On 3/25/19 7:05 AM, Ian Lepore wrote: > On Mon, 2019-03-25 at 08:49 +0000, Hongxiong Xian (Wicresoft North > America Ltd) wrote: >> Hi, >> >> I'm looking for a way to refresh the pci device list. >> In Linux, we can remove a particular pci device, and then after >> preforming a "rescan" the device will appear again. >> For example, disable/rescind PCI (such as VF) : >> echo 1 > /sys/bus/pci/devices/0001\:00\:02.0/remove >> # Get the device back >> echo 1 > /sys/bus/pci/rescan >> >> I'm looking for a similar way in FreeBSD. Does the FreeBSD support >> the hotplug of a PCI device? Thanks in advance! >> >> > > I think 'devctl rescan' will do that, 'man devctl' for details.
For VFs you can create/remote them using iovctl on the PF device. You can also use 'devctl rescan' to force a rescan of a PCI bus as Ian noted. For native PCI-express hotplug you should not need to do manual rescans (though FreeBSD does not support PCI-e hotplug via Thunderbolt). -- John Baldwin _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
