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home | helpSF(4) FreeBSD Kernel Interfaces Manual SF(4) NAME sf -- Adaptec AIC-6915 "Starfire" PCI Fast Ethernet adapter driver SYNOPSIS To compile this driver into the kernel, place the following lines in your kernel configuration file: device miibus device sf Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): if_sf_load="YES" DESCRIPTION The sf driver provides support for Adaptec Duralink Fast Ethernet adapters based on the Adaptec AIC-6915 "Starfire" chipset. The AIC-6915 is a bus master controller with an MII interface. It sup- ports high and low priority transmit and receive queues, TCP/IP checksum offload, multiple DMA descriptor formats and both polling and pro- ducer/consumer DMA models. The AIC-6915 receive filtering options include a 16 entry perfect filter, a 512-bit hash table for multicast addresses, a 512-bit hash table for priority address matching and VLAN filtering. An external MII-compliant transceiver is required for media interfacing. Multiport adapters consist of several AIC-6915 controllers connected via a PCI to PCI bridge. Each controller is treated as a separate interface by the sf driver. The sf driver supports the following media types: autoselect Enable autoselection of the media type and options. The user can manually override the autoselected mode by adding media options to the /etc/rc.conf file. 10baseT/UTP Set 10Mbps operation. The mediaopt option can also be used to select either full-duplex or half-duplex modes. 100baseTX Set 100Mbps (Fast Ethernet) operation. The mediaopt option can also be used to select either full-duplex or half-duplex modes. The sf driver supports the following media options: full-duplex Force full duplex operation half-duplex Force half duplex operation. For more information on configuring this device, see ifconfig(8). HARDWARE Adapters supported by the sf driver include: +o ANA-62011 64-bit single port 10/100baseTX adapter +o ANA-62022 64-bit dual port 10/100baseTX adapter +o ANA-62044 64-bit quad port 10/100baseTX adapter +o ANA-69011 32-bit single port 10/100baseTX adapter +o ANA-62020 64-bit single port 100baseFX adapter SYSCTL VARIABLES The following variables are available as both sysctl(8) variables and loader(8) tunables: dev.sf.%d.int_mod Maximum amount of time to delay interrupt processing in units of 102.4us. The accepted range is 0 to 31, the default value is 1 (102.4us). Value 0 completely disables the interrupt moderation. The interface does not need to be brought down and up again before a change takes effect. dev.sf.%d.stats Display lots of useful MAC counters maintained in the driver. DIAGNOSTICS sf%d: couldn't map memory A fatal initialization error has occurred. This may happen if the PCI BIOS not configured the device, which may be because the BIOS has been configured for a "Plug and Play" operating sys- tem. The "Plug and Play OS" setting in the BIOS should be set to "no" or "off" in order for PCI devices to work properly with FreeBSD. sf%d: couldn't map ports A fatal initialization error has occurred. This may happen if the PCI BIOS not configured the device, which may be because the BIOS has been configured for a "Plug and Play" operating sys- tem. The "Plug and Play OS" setting in the BIOS should be set to "no" or "off" in order for PCI devices to work properly with FreeBSD. sf%d: couldn't map interrupt A fatal initialization error has occurred. sf%d: no memory for softc struct! The driver failed to allocate memory for per-device instance information during initialization. sf%d: failed to enable I/O ports/memory mapping! The driver failed to initialize PCI I/O port or shared memory access. This might happen if the card is not in a bus-master slot. sf%d: watchdog timeout The device has stopped responding to the network, or there is a problem with the network connection (cable). SEE ALSO altq(4), arp(4), miibus(4), netintro(4), ng_ether(4), polling(4), vlan(4), ifconfig(8) The Adaptec AIC-6915 Programmer's Manual, http://download.adaptec.com/pdfs/user_guides/aic6915_pg.pdf. HISTORY The sf device driver first appeared in FreeBSD 3.0. AUTHORS The sf driver was written by Bill Paul <wpaul@ctr.columbia.edu>. FreeBSD 8.2 January 21, 2008 FreeBSD 8.2
NAME | SYNOPSIS | DESCRIPTION | HARDWARE | SYSCTL VARIABLES | DIAGNOSTICS | SEE ALSO | HISTORY | AUTHORS
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