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- Path: sparky!uunet!math.fu-berlin.de!news.th-darmstadt.de!adams
- From: adams@pdv2.fmr.maschinenbau.th-darmstadt.de (Adams)
- Newsgroups: comp.unix.pc-clone.32bit
- Subject: Re: No EISA support SVR4.2
- Date: 28 Jan 93 01:28:30
- Organization: TH-Darmstadt
- Lines: 34
- Message-ID: <ADAMS.93Jan28012830@PDV2.pdv2.fmr.maschinenbau.th-darmstadt.de>
- References: <1993Jan20.144903.13264@zooid.guild.org> <C184oH.BDD@maxed.amg.com>
- <2B6221EB.123E@telly.on.ca>
- NNTP-Posting-Host: pdv2.fmr.maschinenbau.th-darmstadt.de
- In-reply-to: evan@telly.on.ca's message of Sun, 24 Jan 1993 04:58:18 GMT
-
- In article <2B6221EB.123E@telly.on.ca> evan@telly.on.ca (Evan Leibovitch) writes:
-
- Sez who?
- >
- > According to every Univel compatability list I've seen (including ones
- > produced before its release), support for EISA host adapters is
- > explicitly provided for UNIX V4.2 --- *by the vendor of the host board*.
-
- .....
-
- > This has worked for years with the makers of intelligent serial boards.
- > You don't buy anyone's UNIX expecting it to have built-in drivers for
- > Digiboards or Equinox. IMO, in the interest of keeping bloat to a
- > minimum, basic UNIX should come with a minimum of hardware drivers
- > and let the rest ship with the peripherals.
-
- Well, hardly anyone wants to mount "/dev/swap" (or "/dev/drum for
- SUNny boys) on a serial line, just disk controllers tend to be hit by
- this.
-
- Are your really sure, you are able to design a SCSI driver, doing
- busmaster DMA, supporting scatter-gather, without knowing the kernel
- to a certain degree?
-
- Advanced implementations of a pager tend to page to the currently
- active file system. How would you share access between file system and
- pager to your SCSI-controller, as it will have to transmit request of
- both concurrently, as scatter-gather will transfer a whole track both
- into filesystem buffer, on order of filesystem, and user space, on
- order of pager?
-
- best, adams
-
-
-