On Mon, 31 Aug 2020 11:58:10 -0500 Thomas Falcon wrote: > Include documentation for existing ibmvnic sysfs files, > currently only for "failover," which is used to swap > the active hardware port to a backup port in redundant > backing hardware or failover configurations. > > Signed-off-by: Thomas Falcon <tlfal...@linux.ibm.com> > --- > Documentation/ABI/testing/sysfs-driver-ibmvnic | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > create mode 100644 Documentation/ABI/testing/sysfs-driver-ibmvnic > > diff --git a/Documentation/ABI/testing/sysfs-driver-ibmvnic > b/Documentation/ABI/testing/sysfs-driver-ibmvnic > new file mode 100644 > index 0000000..7fa2920 > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-driver-ibmvnic > @@ -0,0 +1,14 @@ > +What: /sys/devices/vio/<our device>/failover > +Date: June 2017 > +KernelVersion: 4.13 > +Contact: linuxppc-...@lists.ozlabs.org > +Description: If the ibmvnic device has been configured with redundant > + physical NIC ports, the user may write "1" to the failover > + file to trigger a device failover, which will reset the > + ibmvnic device and swap to a backup physical port. If no > + redundant physical port has been configured for the device, > + the device will not reset and -EINVAL is returned. If anything > + other than "1" is written to the file, -EINVAL will also be > + returned. > +Users: Any users of the ibmvnic driver which use redundant > hardware > + configurations.
Could you elaborate what the failover thing is? Is it what net_failover does or something opposite? (you say "backup physical port" which sounds like physical port is a backup.. perhaps some IBM nomenclature there worth clarifying?)
