[1434] in linux-scsi channel archive
BusLogic BT-948 and UltraSCSI
daemon@ATHENA.MIT.EDU (H. Peter Anvin)
Mon Feb 17 16:10:18 1997
To: submit-linux-dev-scsi@ratatosk.yggdrasil.com
From: hpa@transmeta.com (H. Peter Anvin)
Date: 17 Feb 1997 18:28:32 GMT
Reply-To: hpa@transmeta.com (H. Peter Anvin)
I have a BusLogic BT-958 with a Seagate Ultra/Wide SCSI disk,
ST34371W. When I boot Linux, it gives me:
scsi: ***** BusLogic SCSI Driver Version 2.0.6 of 1 December 1996 *****
scsi: Copyright 1995 by Leonard N. Zubkoff <lnz@dandelion.com>
scsi0: Configuring BusLogic Model BT-958 PCI Wide Ultra SCSI Host Adapter
scsi0: Firmware Version: 5.06I, I/O Address: 0xEFF4, IRQ Channel: 11/Level
scsi0: DMA Channel: None, BIOS Address: 0xDC000, Host Adapter SCSI ID: 7
scsi0: Scatter/Gather Limit: 128 of 8192 segments, Parity Checking: Enabled
scsi0: Synchronous Initiation: Enabled, Extended Disk Translation: Enabled
scsi0: Disconnect/Reconnect: Enabled, Tagged Queuing: Enabled
scsi0: Total Queue Depth: 192, Mailboxes: 255, Initial CCBs: 64
scsi0: Tagged Queue Depth: Automatic, Untagged Queue Depth: 3
scsi0: Host Adapter SCSI Bus Termination (Low/High): Enabled/Enabled
scsi0: Error Recovery Strategy: Default
scsi0: *** BusLogic BT-958 Initialized Successfully ***
scsi0: Target 0: Synchronous at 10.0 mega-transfers/second, offset 15
scsi0: Target 6: Asynchronous
scsi0 : BusLogic BT-958
... however, AutoSCSI shows me "Negotiated rate: 20 MHz". Which is
right?
a. The Linux driver displays 10 MHz but runs at 20 MHz;
b. The card knows how to do 20 MHz but the Linux driver runs
it at 10 MHz because it doesn't know higher rates;
c. The Linux driver runs the card at 10 MHz for some other
technical reason?
-hpa
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