FreeBSD 7.0 manual page repository

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adw - Advansys PCI 16bit SCSI Host adapter driver

 

NAME

      adw - Advansys PCI 16bit SCSI Host adapter driver
 

SYNOPSIS

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

DESCRIPTION

      This driver provides access to the 16bit SCSI bus connected to the
      Advanced Systems Products, Inc.  ASC3550 Ultra, and ASC38C0800 Ultra2,
      SCSI Host Adapter chips.  Both chips support, synchronous transfers
      (20MHz and 40MHz max respectively), 16bit transfers, tagged queueing, and
      up to 253 concurrent SCSI transactions.
 
      Per target configuration performed in the AdvanceWare menu, which is
      accessible at boot, is honored by this driver.  This includes syn‐
      chronous/asynchronous transfers, maximum synchronous negotiation rate,
      wide transfers, disconnection, tagged queueing, and the host adapter’s
      SCSI ID.  The global setting for the maximum number of tagged transac‐
      tions allowed per target is not honored as the CAM SCSI system will auto‐
      matically determine the maximum number of tags a device can receive as
      well as guarantee fair resource allocation among devices.
 

HARDWARE

      The adw driver supports SCSI controllers including:
 
            AdvanSys ABP940UW/ABP3940UW
            AdvanSys ABP950UW
            AdvanSys ABP970UW
            AdvanSys ABP3940U2W
            AdvanSys ABP3950U2W
      adv(4), cd(4), da(4), sa(4), scsi(4)
 

HISTORY

      The adw driver appeared in FreeBSD 3.0.
 

AUTHORS

      The adw driver was ported by Justin T. Gibbs from the Linux driver writ‐
      ten by Bob Frey of Advanced System Products, Inc.  Many thanks to Advan‐
      Sys for providing the original driver under a suitable license for use in
      FreeBSD.
 

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