Subject: Re: SCSI Target Mode
To: None <>
From: der Mouse <mouse@Rodents.Montreal.QC.CA>
List: port-vax
Date: 08/19/2004 20:41:03
> Bear in mind that it will NOT out-perform Ethernet.  The difficulty
> with SCSI is that there are several places during the transmission of
> a packet that an interrupt needs to be taken;

Sure - but there's nothing that says a SCSI-level transfer has to
correspond to no more than one network packet; there's no reason a
network-over-SCSI setup couldn't be made to transfer a whole wack of
network packets in a single SCSI transfer.

> I needed the dual-channel interface to deal with the possibility that
> I might be addressed to receive a packet while I was preparing to
> send one; I just couldn't figure out how to handle that case with a
> single chip.

Isn't that what bus arbitration is all about?  Or am I just exposing my
ignorance of SCSI?

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