Driver - HDLC 83xx QUICC Engine??

All,

Does anyone know of a project or existing driver for supporting HDLC for the

MPC83xx or MPC82XX Freescale CPUs?

Looking to run raw HDLC over various Ethernet or T1 links.

-Russ

Jocke,

I'll let you know if I find any.  For a starting point, I have an QE ATM
driver, that is more than likely similar in design <though no Ethernet
interface>, as it supports the QE engine, and just turns the UCC into =
ATM
mode, as opposed to HDLC mode. Would imagine the buffering, IO, =
interrupts
are similar. I am still in process of porting it up from the 82xx CPU.=20

Although HDLC how it registers itself into the kernel is a mystery to =
me, I
am having trouble finding any HDLC drivers to model this after.  Know of =
any
specs? API? Etc...

-Russ

-----Original Message-----
From: Joakim Tjernlund [mailto:joakim.tjernlund@transmode.se]
Sent: Tuesday, January 15, 2008 4:19 PM
To: rmcguire@videopresence.com; linuxppc-embedded@ozlabs.org
Subject: SV: Driver - HDLC 83xx QUICC Engine??
=20

quoted

-----Ursprungligt meddelande-----
Fr=E5n: =

linuxppc-embedded-bounces+joakim.tjernlund=3Dlumentis.se@ozlabs.org

[mailto:linuxppc-embedded-

quoted

bounces+joakim.tjernlund=3Dlumentis.se@ozlabs.org] F=F6r Russell =

McGuire

quoted

Skickat: den 15 januari 2008 20:52
Till: linuxppc-embedded@ozlabs.org
=C4mne: Driver - HDLC 83xx QUICC Engine??

All,

Does anyone know of a project or existing driver for supporting HDLC =

for

the

quoted

MPC83xx or MPC82XX Freescale CPUs?

Looking to run raw HDLC over various Ethernet or T1 links.

-Russ

=20
Me too. Perhaps not, I will be looking at presenting a Ethernet i/f to =

the

kernel but
sending out HDLC frames containing the Ethernet packet. If you =

find/have

anything
that helps me do that, send it my way please.
=20
     Jocke

-----Ursprungligt meddelande-----
Fr=E5n: =

linuxppc-embedded-bounces+joakim.tjernlund=3Dlumentis.se@ozlabs.org =
[mailto:linuxppc-embedded-

bounces+joakim.tjernlund=3Dlumentis.se@ozlabs.org] F=F6r Russell =

McGuire

Skickat: den 15 januari 2008 20:52
Till: linuxppc-embedded@ozlabs.org
=C4mne: Driver - HDLC 83xx QUICC Engine??
=20
All,
=20
Does anyone know of a project or existing driver for supporting HDLC =

for the

=20
MPC83xx or MPC82XX Freescale CPUs?
=20
Looking to run raw HDLC over various Ethernet or T1 links.
=20
-Russ

Me too. Perhaps not, I will be looking at presenting a Ethernet i/f to =
the kernel but
sending out HDLC frames containing the Ethernet packet. If you find/have =
anything
that helps me do that, send it my way please.

     Jocke

-----Ursprungligt meddelande-----
Fr=E5n: Russell McGuire [mailto:rmcguire@videopresence.com]
Skickat: den 16 januari 2008 01:31
Till: 'Joakim Tjernlund'
Kopia: linuxppc-embedded@ozlabs.org
=C4mne: RE: Driver - HDLC 83xx QUICC Engine??
=20
Jocke,
=20
I'll let you know if I find any.  For a starting point, I have an QE =

ATM

driver, that is more than likely similar in design <though no Ethernet
interface>, as it supports the QE engine, and just turns the UCC into =

ATM

mode, as opposed to HDLC mode. Would imagine the buffering, IO, =

interrupts

are similar. I am still in process of porting it up from the 82xx CPU.
=20
Although HDLC how it registers itself into the kernel is a mystery to =

me, I

am having trouble finding any HDLC drivers to model this after.  Know =

of any

specs? API? Etc...

Sorry but I don't know. Luckily for me I don't have too either.

 Jocke

Jocke,

I ran across this patch doing some looking around. It isn't in the =
kernel I
downloaded a while ago and have been working with, and I am not sure of =
the
real extents of its support.

Maybe Kim or Kumar can fill us in, on if it is what we are looking for.

http://patchwork.ozlabs.org/linuxppc/patch?id=3D7262


In any regards, it definitely looks like something we should be checking
out.

-Russ

-----Original Message-----
From: Joakim Tjernlund [mailto:joakim.tjernlund@transmode.se]
Sent: Tuesday, January 15, 2008 4:19 PM
To: rmcguire@videopresence.com; linuxppc-embedded@ozlabs.org
Subject: SV: Driver - HDLC 83xx QUICC Engine??
=20

quoted

-----Ursprungligt meddelande-----
Fr=E5n: =

linuxppc-embedded-bounces+joakim.tjernlund=3Dlumentis.se@ozlabs.org

[mailto:linuxppc-embedded-

quoted

bounces+joakim.tjernlund=3Dlumentis.se@ozlabs.org] F=F6r Russell =

McGuire

quoted

Skickat: den 15 januari 2008 20:52
Till: linuxppc-embedded@ozlabs.org
=C4mne: Driver - HDLC 83xx QUICC Engine??

All,

Does anyone know of a project or existing driver for supporting HDLC =

for

the

quoted

MPC83xx or MPC82XX Freescale CPUs?

Looking to run raw HDLC over various Ethernet or T1 links.

-Russ

=20
Me too. Perhaps not, I will be looking at presenting a Ethernet i/f to =

the

kernel but
sending out HDLC frames containing the Ethernet packet. If you =

find/have

anything
that helps me do that, send it my way please.
=20
     Jocke

eh, that looks like something that is part of the kernel already.
Am I missing something?

      Jocke

-----Ursprungligt meddelande-----
Fr=E5n: Russell McGuire [mailto:rmcguire@videopresence.com]
Skickat: den 17 januari 2008 23:12
Till: 'Joakim Tjernlund'
Kopia: linuxppc-embedded@ozlabs.org; 'Kim Phillips'
=C4mne: RE: Driver - HDLC 83xx QUICC Engine??
=20
Jocke,
=20
I ran across this patch doing some looking around. It isn't in the =

kernel I

downloaded a while ago and have been working with, and I am not sure =

of the

real extents of its support.
=20
Maybe Kim or Kumar can fill us in, on if it is what we are looking =

for.

=20
http://patchwork.ozlabs.org/linuxppc/patch?id=3D7262
=20
=20
In any regards, it definitely looks like something we should be =

checking

out.
=20
-Russ

quoted

-----Original Message-----
From: Joakim Tjernlund [mailto:joakim.tjernlund@transmode.se]
Sent: Tuesday, January 15, 2008 4:19 PM
To: rmcguire@videopresence.com; linuxppc-embedded@ozlabs.org
Subject: SV: Driver - HDLC 83xx QUICC Engine??

quoted

-----Ursprungligt meddelande-----
Fr=E5n: =

linuxppc-embedded-bounces+joakim.tjernlund=3Dlumentis.se@ozlabs.org

quoted

[mailto:linuxppc-embedded-

quoted

bounces+joakim.tjernlund=3Dlumentis.se@ozlabs.org] F=F6r Russell =

McGuire

quoted

quoted

Skickat: den 15 januari 2008 20:52
Till: linuxppc-embedded@ozlabs.org
=C4mne: Driver - HDLC 83xx QUICC Engine??

All,

Does anyone know of a project or existing driver for supporting =

HDLC for

quoted

the

quoted

MPC83xx or MPC82XX Freescale CPUs?

Looking to run raw HDLC over various Ethernet or T1 links.

-Russ

Me too. Perhaps not, I will be looking at presenting a Ethernet i/f =

to the

quoted

kernel but
sending out HDLC frames containing the Ethernet packet. If you =

find/have

quoted

anything
that helps me do that, send it my way please.

     Jocke

=20
=20