virtio_scsi — VirtIO SCSI driver

       To enable debugging prints from the virtio_scsi driver, set the

             hw.vtscsi.X.debug_level

       variable,  where  X is the adapter number, either in loader.conf(5) or via sysctl(8).  The following bits
       have the described effects:

             0x01    Enable informational prints.

             0x02    Enable prints for driver errors.

             0x04    Enable tracing prints.

       The virtio_scsi device driver provides support for VirtIO SCSI devices.

       The virtio_scsi driver was written by  Bryan  Venteicher  <bryanv@FreeBSD.org>.   It  first  appeared  in
       FreeBSD 10.0.

Debian                                            June 24, 2012                                   VIRTIO_SCSI(4)

       Tunables can be set at the loader(8) prompt before booting the kernel or stored in loader.conf(5).

       hw.vtscsi.bus_reset_disable
               In  the initial QEMU release with VirtIO SCSI support, in-flight operations were not aborted when
               stopping the device, rendering bus reset ineffective.  This tunable disables  attempts  to  issue
               reset bus commands.  The default value is 1.

       virtio_scsi — VirtIO SCSI driver

virtio(4)

       To compile this driver into the kernel, place the following lines in your kernel configuration file:

             devicevirtio_scsi

       Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

             virtio_scsi_load="YES"