NAME

       siis — SiliconImage Serial ATA Host Controller driver

SYNOPSIS

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

             device pci
             device scbus
             device siis

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

             siis_load="YES"

       The following tunables are settable from the loader(8):

       hint.siis.X.msi
       controls Message Signaled Interrupts (MSI) usage by the specified controller.

       hint.siisch.X.pm_level
       controls  SATA  interface  Power Management for the specified channel, allowing some power to be saved at
       the cost of additional command latency.  Possible values:

             0   interface Power Management is disabled (default);

             1   device is allowed to initiate PM state change, host is passive.

       Note that interface Power Management is not compatible with device  presence  detection.   A  manual  bus
       reset is needed on device hot-plug.

       hint.siisch.X.sata_rev
       setting to nonzero value limits maximum SATA revision (speed).  Values 1, 2 and 3 are respectively 1.5, 3
       and 6Gbps.

DESCRIPTION

       This  driver provides the CAM(4) subsystem with native access to the SATA ports of controller.  Each SATA
       port is represented to CAM as a separate bus with 16 targets.  Most of  the  bus-management  details  are
       handled  by the SATA-specific transport of CAM.  Connected ATA disks are handled by the ATA protocol disk
       peripheral driver ada(4).  ATAPI devices are handled by  the  SCSI  protocol  peripheral  drivers  cd(4),
       da(4), sa(4), etc.

       Driver  features  include support for Serial ATA and ATAPI devices, Port Multipliers (including FIS-based
       switching), hardware command queues (31 command per port), Native Command Queuing, SATA  interface  Power
       Management, device hot-plug and Message Signaled Interrupts.

       The  activity  LEDs of the adapters supported by the siis driver can be controlled via the led(4) API for
       localization or status reporting purposes.

HARDWARE

       The siis driver supports the following controller chips:

       •   SiI3124 (PCI-X 133MHz/64bit, 4 ports)
       •   SiI3131 (PCIe 1.0 x1, 1 port)
       •   SiI3132 (PCIe 1.0 x1, 2 ports)
       •   SiI3531 (PCIe 1.0 x1, 1 port)

FILES

       /dev/led/siisch*  identification LED device nodes

SEE ALSO

       ada(4), ata(4), cam(4), cd(4), da(4), led(4), sa(4)

HISTORY

       The siis driver first appeared in FreeBSD 8.0.

AUTHORS

       Alexander Motin <mav@FreeBSD.org>

Debian                                           March 23, 2015                                          SIIS(4)