On Fri, Nov 06, 2020 at 05:04:24PM -0800, Bart Van Assche wrote: > On 11/6/20 6:00 AM, Jason Gunthorpe wrote: > > This moves siw and rxe to be virtual devices in the device tree: > > > > lrwxrwxrwx 1 root root 0 Nov 6 13:55 /sys/class/infiniband/rxe0 -> ../../devices/virtual/infiniband/rxe0/ > > > > Previously they were trying to parent themselves to the physical device of > > their attached netdev, which doesn't make alot of sense. > > > > My hope is this will solve some weird syzkaller hits related to sysfs as > > it could be possible that the parent of a netdev is another netdev, eg > > under bonding or some other syzkaller found netdev configuration. > > > > Nesting a ib_device under anything but a physical device is going to cause > > inconsistencies in sysfs during destructions. > > Hi Jason, > > I do not know enough about the code touched by this patch to comment on > the patch itself. But I expect that the blktests code will have to be > modified to compensate for this change. How to translate the name of a > virtual RDMA device into a netdev device with this patch applied? $ rdma link link rxe0/1 state ACTIVE physical_state LINK_UP netdev eth1 Is the correct way Jason
