1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
40 lines
1.1 KiB
Text
40 lines
1.1 KiB
Text
README for WarpEngine/A4000T/A4091 SCSI kernels.
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Use the following options to disable options in the SCSI driver.
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Using amiboot for example.....
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To disable Synchronous Negotiation....
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amiboot -k kernel 53c7xx=nosync:0
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To disable Disconnection....
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amiboot -k kernel 53c7xx=nodisconnect:0
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To disable certain SCSI devices...
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amiboot -k kernel 53c7xx=validids:0x3F
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this allows only device ID's 0,1,2,3,4 and 5 for linux to handle.
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(this is a bitmasked field - i.e. each bit represents a SCSI ID)
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These commands work on a per controller basis and use the option 'next' to
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move to the next controller in the system.
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e.g.
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amiboot -k kernel 53c7xx=nodisconnect:0,next,nosync:0
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this uses No Disconnection on the first controller and Asynchronous
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SCSI on the second controller.
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Known Issues:
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Two devices are known not to function with the default settings of using
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synchronous SCSI. These are the Archive Viper 150 Tape Drive and the
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SyQuest SQ555 removeable hard drive. When using these devices on a controller
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use the 'nosync:0' option.
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Please try these options and post any problems/successes to me.
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Alan Hourihane <alanh@fairlite.demon.co.uk>
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