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virtio_scsi(4) [freebsd man page]

VIRTIO_SCSI(4)						   BSD Kernel Interfaces Manual 					    VIRTIO_SCSI(4)

NAME
virtio_scsi -- VirtIO SCSI driver SYNOPSIS
To compile this driver into the kernel, place the following lines in your kernel configuration file: device virtio_scsi Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): virtio_scsi_load="YES" DESCRIPTION
The virtio_scsi device driver provides support for VirtIO SCSI devices. LOADER TUNABLES
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. DEBUGGING
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. SEE ALSO
virtio(4) HISTORY
The virtio_scsi driver was written by Bryan Venteicher <bryanv@FreeBSD.org>. It first appeared in FreeBSD 10.0. BSD
June 24, 2012 BSD

Check Out this Related Man Page

ISCI(4) 						   BSD Kernel Interfaces Manual 						   ISCI(4)

NAME
isci -- Intel C600 Serial Attached SCSI driver SYNOPSIS
To compile this driver into your kernel, place the following lines in your kernel configuration file: device scbus device isci Or, to load the driver as a module at boot, place the following line in loader.conf(5): isci_load="YES" HARDWARE
The isci driver provides support for Intel C600 SAS controllers. CONFIGURATION
To force legacy interrupts for all isci driver instances, set the following tunable value in loader.conf(5): hw.isci.force_legacy_interrupts=1 DEBUGGING
To enable debugging prints from the isci driver, set the hw.isci.debug_level variable to a value between 1 and 4 in loader.conf(5). The hardware layer in the isci driver has extensive logging capabilities which are disabled by default for performance reasons. These can be enabled by adding options ISCI_LOGGING to the kernel configuration file. SEE ALSO
cd(4), ch(4), da(4), pci(4), sa(4), scsi(4) HISTORY
The isci driver first appeared in FreeBSD 8.3 and 9.1. AUTHORS
The isci driver was developed by Intel and originally written by Jim Harris <jimharris@FreeBSD.org> with contributions from Sohaib Ahsan and input from Scott Long <scottl@FreeBSD.org>. This man page was written by Jim Harris <jimharris@FreeBSD.org>. BSD
January 23, 2012 BSD
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