Ubuntu Feisty 7.04 manual page repository
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adw - Advansys PCI 16bit SCSI Host adapter driver
device pci device adw For one or more SCSI busses: device scbus
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.
The adw driver supports SCSI controllers including: AdvanSys ABP940UW/ABP3940UW AdvanSys ABP950UW AdvanSys ABP970UW AdvanSys ABP3940U2W AdvanSys ABP3950U2W scsi(4)
The adw driver appeared in FreeBSD 3.0.
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.