[parisc-linux] SCSI driver for E-class servers - SPIFI ?

[parisc-linux] SCSI driver for E-class servers - SPIFI ?

[Christoph Plattner]

Hello to all !

Is the HP E55 SCSI controller a HP SPIFI ?
I found that on the mailing archive ...
Is this correct ?

Further I found out, that NetBSD has one HP SPIFI SCSI driver ?
Does anyone know, if this driver can help use for the E55 or
similar machines.

The driver is in the file:
     ./syssrc/sys/arch/newsmips/apbus/spifi.c 
and
     ./syssrc/sys/arch/newsmips/apbus/spifireg.h

Answer is welcome

Christoph


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Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?

[Grant Grundler]

Christoph Plattner wrote:
> Hello to all !
> 
> Is the HP E55 SCSI controller a HP SPIFI ?
> I found that on the mailing archive ...Is this correct ?

Yes. HP-PB SE SCSI uses SPIFI-3.
HP-PB FWD SCSI uses i860 + SPIFI-4.

> Does anyone know, if this driver can help use for the E55 or
> similar machines.
> 
> The driver is in the file:
>      ./syssrc/sys/arch/newsmips/apbus/spifi.c 
> and
>      ./syssrc/sys/arch/newsmips/apbus/spifireg.h

I need a URL. AFAIK, SPIFI if the only family of SCSI
chips made by HP.

grant

Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?

[Christoph Plattner]

Ok, the URL of NetBSD CVS repository:

http://cvsweb.netbsd.org/bsdweb.cgi    (CVS web interface)

This is the full CVS web path of this driver.

http://cvsweb.netbsd.org/bsdweb.cgi/syssrc/sys/arch/newsmips/apbus/

I have checked out the NetBSD tree on my disk, CVS ROOT was
:pserver:anoncvs@anoncvs.netbsd.org:/cvsroot

I hope we can have progress on this machine ...
Christoph P.


Grant Grundler wrote:
> 
> Christoph Plattner wrote:
> > Hello to all !
> >
> > Is the HP E55 SCSI controller a HP SPIFI ?
> > I found that on the mailing archive ...Is this correct ?
> 
> Yes. HP-PB SE SCSI uses SPIFI-3.
> HP-PB FWD SCSI uses i860 + SPIFI-4.
> 
> > Does anyone know, if this driver can help use for the E55 or
> > similar machines.
> >
> > The driver is in the file:
> >      ./syssrc/sys/arch/newsmips/apbus/spifi.c
> > and
> >      ./syssrc/sys/arch/newsmips/apbus/spifireg.h
> 
> I need a URL. AFAIK, SPIFI if the only family of SCSI
> chips made by HP.
> 
> grant

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Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?

[Grant Grundler]

Christoph Plattner wrote:
> http://cvsweb.netbsd.org/bsdweb.cgi/syssrc/sys/arch/newsmips/apbus/

This looks like it's the right driver for the HP-PB SE SCSI.
I noticed that SDTR isn't supported.
But it's a starting point.

grant

Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?

[Christoph Plattner]

Sorry, that I am not so "deep" in the HP device knowledge, can you give
me sime hints !

HP-BP is this a HP bus system ?
Is this used in the E55 (or similar) ?
Is the "SE" SCSI that one in the E55 (what stands "SE" for) ?
What is SDTR ?

Sorry, but I am interested in that stuff, and I know, I can help after 
initial steps. Some weeks ago, I rewrote an ethernet driver of an
not-well known chip on an VAX termianl for VAX Linux. So after some
hacking days (or better nights), there will be real progress.

So I am interested in helping here. 

Sorry for this question again:
What is the status of the MUX. As far I can remember, you started to
write on this driver. Is this correct ?

Christoph



Grant Grundler wrote:
> 
> Christoph Plattner wrote:
> > http://cvsweb.netbsd.org/bsdweb.cgi/syssrc/sys/arch/newsmips/apbus/
> 
> This looks like it's the right driver for the HP-PB SE SCSI.
> I noticed that SDTR isn't supported.
> But it's a starting point.
> 
> grant

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Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?

[M. Grabert]

On Wed, 12 Jun 2002, Christoph Plattner wrote:

> Sorry, that I am not so "deep" in the HP device knowledge, can you give
> me sime hints !
>
> HP-BP is this a HP bus system ?

Yes, it's the HP Precision Bus (aka NIO). AFAIK it's mainly used in the
(very) old servers, like F10. I don't know what the current status of
support
is, but it used to be unsupported (no docu ?).

(hint: www.parisc-linux.org ->glossary, mailing list archive)

> Is this used in the E55 (or similar) ?

Yes. Although (regarding to www.openpa.net) something like a modified
version.

(hint: www.openpa.net, www.google.com, www.parisc-linux.org ->hardware
database)

> Is the "SE" SCSI that one in the E55 (what stands "SE" for) ?

SE stands for SingleEnded and reffers to how the SCSI device is connected
(signalling etc.). It's the "normal" SCSI (unlike LVD,
LowVoltageDifferential), used in SCSI-I and SCSI-II (narrow)

> What is SDTR ?

It's the signal send on the scsi bus to negotiate syncronous data
transfer (or asynchronous sent with a REQ/ACK) if they support it.

> Sorry, but I am interested in that stuff, and I know, I can help after
> initial steps. Some weeks ago, I rewrote an ethernet driver of an
> not-well known chip on an VAX termianl for VAX Linux. So after some
> hacking days (or better nights), there will be real progress.
>
> So I am interested in helping here.

nice :)

> Sorry for this question again:
> What is the status of the MUX. As far I can remember, you started to
> write on this driver. Is this correct ?

Perhaps s.o. can answer this question. AFAIK somebody is indeed writing
on it and has succeded to use the console port on the MUX.

geretings max

Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?

[Grant Grundler]

Christoph Plattner wrote:
> HP-BP is this a HP bus system ?
> Is this used in the E55 (or similar) ?

yes. yes.

> Is the "SE" SCSI that one in the E55 (what stands "SE" for) ?
 
yes. "Single Ended".

> What is SDTR ?

Synchronous Data Transfer Rate.
See the SCSI spec for more detail.

grant

Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?

[Grant Grundler]

Christoph Plattner wrote:
> Sorry for this question again:
> What is the status of the MUX. As far I can remember, you started to
> write on this driver. Is this correct ?

no. I think Ryan Bradetich was working on something for this
for K-class. not sure this is the same thing as E55 though.

grant

Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?

[Christoph Plattner]

Thanks, for the answers.

I never thought, the SE stands here for the single ended, I know the 
difference between SE and differential.

BTW: It's me, who wrote the MUX console support, and this is already
checked in into the Linux tree (for half an year now). 
But I am interested in having a full device support....

Christoph P.



"M. Grabert" wrote:
> 
> On Wed, 12 Jun 2002, Christoph Plattner wrote:
> 
> > Sorry, that I am not so "deep" in the HP device knowledge, can you give
> > me sime hints !
> >
> > HP-BP is this a HP bus system ?
> 
> Yes, it's the HP Precision Bus (aka NIO). AFAIK it's mainly used in the
> (very) old servers, like F10. I don't know what the current status of
> support
> is, but it used to be unsupported (no docu ?).
> 
> (hint: www.parisc-linux.org ->glossary, mailing list archive)
> 
> > Is this used in the E55 (or similar) ?
> 
> Yes. Although (regarding to www.openpa.net) something like a modified
> version.
> 
> (hint: www.openpa.net, www.google.com, www.parisc-linux.org ->hardware
> database)
> 
> > Is the "SE" SCSI that one in the E55 (what stands "SE" for) ?
> 
> SE stands for SingleEnded and reffers to how the SCSI device is connected
> (signalling etc.). It's the "normal" SCSI (unlike LVD,
> LowVoltageDifferential), used in SCSI-I and SCSI-II (narrow)
> 
> > What is SDTR ?
> 
> It's the signal send on the scsi bus to negotiate syncronous data
> transfer (or asynchronous sent with a REQ/ACK) if they support it.
> 
> > Sorry, but I am interested in that stuff, and I know, I can help after
> > initial steps. Some weeks ago, I rewrote an ethernet driver of an
> > not-well known chip on an VAX termianl for VAX Linux. So after some
> > hacking days (or better nights), there will be real progress.
> >
> > So I am interested in helping here.
> 
> nice :)
> 
> > Sorry for this question again:
> > What is the status of the MUX. As far I can remember, you started to
> > write on this driver. Is this correct ?
> 
> Perhaps s.o. can answer this question. AFAIK somebody is indeed writing
> on it and has succeded to use the console port on the MUX.
> 
> geretings max

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Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?

[Christoph Plattner]

Hello Grant,

MUX:
----
So, what is then the status of the docu then. You (I think it was you),
said something about a non-disclosure agreement. Is this opportunity
still active ?

SCSI:
-----
Are there plans to start developing the SCSI driver on base of this
NetBSD driver ?

Common:
-------
Is there a need to handle the bus system in a special way, or are the
devices full accessable, interrupts assigned, etc..., or is there
special
work to do ?


Christoph



Grant Grundler wrote:
> 
> Christoph Plattner wrote:
> > Sorry for this question again:
> > What is the status of the MUX. As far I can remember, you started to
> > write on this driver. Is this correct ?
> 
> no. I think Ryan Bradetich was working on something for this
> for K-class. not sure this is the same thing as E55 though.
> 
> grant
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

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Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?

[Grant Grundler]

Christoph Plattner wrote:
> Hello Grant,
> 
> MUX:
> ----
> So, what is then the status of the docu then. You (I think it was you),
> said something about a non-disclosure agreement. Is this opportunity
> still active ?

Yes - I've already asked the person who can do this and they agreed to.
The issue was finding time to do it.  Please be patient with us since
"business issues" are keeping us busy right now. It might take
another month but hopefully not that long. We'll contact you off list
when it's ready.

> SCSI:
> -----
> Are there plans to start developing the SCSI driver on base of this
> NetBSD driver ?

Yes - I was pretty sure you or rbrad was going to port that. ;^)
In any case, someone who cares will make this port happen.

> Common:
> -------
> Is there a need to handle the bus system in a special way, or are the
> devices full accessable, interrupts assigned, etc..., or is there
> special
> work to do ?

The MMIO access makes the system bus transperent.
Interrupts will require some small bit of work identical to
what's be done for Zalon SCSI support.

grant

Re: [parisc-linux] SCSI driver for E-class servers - SPIFI ?

[Christoph Plattner]

Hello,

Grant Grundler wrote:
> 
> Christoph Plattner wrote:
> > Hello Grant,
> >
> > MUX:
> > ----
> > So, what is then the status of the docu then. You (I think it was you),
> > said something about a non-disclosure agreement. Is this opportunity
> > still active ?
> 
> Yes - I've already asked the person who can do this and they agreed to.
> The issue was finding time to do it.  Please be patient with us since
> "business issues" are keeping us busy right now. It might take
> another month but hopefully not that long. We'll contact you off list
> when it's ready.

Oh, no problem, I will patient here. From an older email, I thougt, 
this process was cancelled, I thought you wrote, that you will to 
that (the driver). So I was interested in the status. So now I am
up-to-date, ok.

> 
> > SCSI:
> > -----
> > Are there plans to start developing the SCSI driver on base of this
> > NetBSD driver ?
> 
> Yes - I was pretty sure you or rbrad was going to port that. ;^)
> In any case, someone who cares will make this port happen.

Ok, I will look, if I can help here. I have some experience in ethernet
work (and a little bit serial), SCSI and block devices are new for me,
but I am interested in (month by month, new regions of the kernel can
be discovered ..., I like it ....)

> 
> > Common:
> > -------
> > Is there a need to handle the bus system in a special way, or are the
> > devices full accessable, interrupts assigned, etc..., or is there
> > special
> > work to do ?
> 
> The MMIO access makes the system bus transperent.
> Interrupts will require some small bit of work identical to
> what's be done for Zalon SCSI support.

Ok, that helps in starting driver development.

> 
> grant


Bye
Christoph P.


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