bt - Buslogic/Mylex MultiMaster SCSI host adapter driver
device isa device scbus device bt
In /boot/device.hints hint.bt.0.at=isa hint.bt.0.port=0x330
MultiMaster "W" Series Host Adapters:
Adapter Bus Commands Description BT-948 PCI 192 Ultra SCSI-3 BT-958 PCI 192 Wide ULtra SCSI-3 BT-958D PCI 192 Wide Differential Ultra SCSI-3
MultiMaster "C" Series Host Adapters:
Adapter Bus Commands Description BT-946C PCI 100 Fast SCSI-2 BT-956C PCI 100 Wide Fast SCSI-2 BT-956CD PCI 100 Wide Differential Fast SCSI-2 BT-445C VLB 100 Fast SCSI-2 BT-747C EISA 100 Fast SCSI-2 BT-757C EISA 100 Wide Fast SCSI-2 BT-757CD EISA 100 Wide Differential Fast SCSI-2 BT-545C ISA 50 Fast SCSI-2 BT-540CF ISA 50 Fast SCSI-2
MultiMaster "S" Series Host Adapters:
Adapter Bus Commands Description BT-445S VLB 30 Fast SCSI-2 BT-747S EISA 30 Fast SCSI-2 BT-747D EISA 30 Differential Fast SCSI-2 BT-757S EISA 30 Wide Fast SCSI-2 BT-757D EISA 30 Wide Differential Fast SCSI-2 BT-545S ISA 30 Fast SCSI-2 BT-542D ISA 30 Differential Fast SCSI-2 BT-742A EISA 30 SCSI-2 (742A revision H) BT-542B ISA 30 SCSI-2 (542B revision H)
MultiMaster "A" Series Host Adapters:
Adapter Bus Commands Description BT-742A EISA 30 SCSI-2 (742A revisions A - G) BT-542B ISA 30 SCSI-2 (542B revisions A - G)
Tagged queueing is supported on 'W' series adapters, 'C' series adapters with firmware of rev 4.42 and higher, and 'S' series adapters with firmware of rev 3.35 and higher.
Boards with certain firmware revisions may lock up under heavy load to certain devices, especially if tagged queueing is used. Should you encounter a problem with your adapter, contact Mylex technical support and ensure you have the latest firmware for your controller.
AMI FastDisk Host Adapters that are true BusLogic MultiMaster clones are also supported by the driver.
Special thanks to An Leonard N. Zubkoff for writing such a complete and well documented Mylex/BusLogic MultiMaster driver for Linux. Support in this driver for the wide range of MultiMaster controllers and firmware revisions, with their otherwise undocumented quirks, would not have been possible without his efforts.
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Created 1996-2021 by Maxim Chirkov
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