Re: 2.1.115 scsi funnies

kwrohrer@ce.mediaone.net
Mon, 10 Aug 1998 10:45:21 -0500 (CDT)

And lo, Ville Voutilainen saith unto me:
>
> Howdy people, I have noticed some scsi peculiarities;
> my ncr53c810 claims that it does not support synchronous
> transfers, but AFAIK it does.
>
> --clip--
>
> >From /proc/scsi/ncr53c8xx/0:
>
> Chip NCR53C810a, device id 0x1, revision id 0x12
> IO port address 0xe000, IRQ number 11
> Using memory mapped IO at virtual address 0xc4800000
> Synchronous period factor 25, max commands per lun 32
>
> >From log:
>
> ncr53c810a-0-<4,*>: SYNC transfers not supported.
board ^ ^ target

This message says that device 4 on board 0 (all LUN's for that
device) says it doesn't support SYNC transfers.

> Aren't these controversial?
Nope, they're not even contradictory. The 53c8xx can do synchronous;
but your device number 4 says it can't. Therefore the board and driver
will do synchronous transfers to the other devices (assuming they don't
object), just not to that one.

Keith

-- 
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