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SIIS(4) Kernel Interfaces Manual SIIS(4) 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 con- troller. hint.siisch.X.pm_level controls SATA interface Power Management for the specified channel, al- lowing some power to be saved at the cost of additional command la- tency. Possible values: 0 interface Power Management is disabled (default); 1 device is allowed to initiate PM state change, host is pas- sive. 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 de- vices 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 pur- poses. HARDWARE The siis driver supports the following controller chips: o SiI3124 (PCI-X 133MHz/64bit, 4 ports) o SiI3131 (PCIe 1.0 x1, 1 port) o SiI3132 (PCIe 1.0 x1, 2 ports) o 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> FreeBSD 13.2 March 23, 2015 SIIS(4)
NAME | SYNOPSIS | DESCRIPTION | HARDWARE | FILES | SEE ALSO | HISTORY | AUTHORS
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