Bug 140307 - RFE: Add a HomePNA mode option for pcnet32
RFE: Add a HomePNA mode option for pcnet32
Product: Fedora
Classification: Fedora
Component: system-config-network (Show other bugs)
i686 Linux
medium Severity medium
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Assigned To: Harald Hoyer
: FutureFeature
Depends On:
Blocks: 87718
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Reported: 2004-11-22 03:32 EST by Jarkko
Modified: 2007-11-30 17:10 EST (History)
3 users (show)

See Also:
Fixed In Version:
Doc Type: Enhancement
Doc Text:
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Clone Of:
Last Closed: 2007-11-13 06:41:04 EST
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Jarkko 2004-11-22 03:32:10 EST
Description of problem:
If you have pcnet32 module and you're running HomePNA, you need to
specify homepna mode in /etc/modprobe.conf from kernel 2.6.7 and up:

# use HomePNA mode with pcnet32
options pcnet32 homepna=1

This should be added automatically by system-config-network so that
user does not have to specify it by hand.

Of course the user can use this card as a normal ethernet card too, 
so add an option for HomePNA mode.

Version-Release number of selected component (if applicable):
Comment 1 Jarkko 2004-11-22 06:30:53 EST
The change (homepna mode was the default before) causes grey hair for 
users that have used HomePNA with pcnet32 before kernel-2.6.7-
1.494.2.2. xDSL (normally HomePNA is used for xDSL) stops to work 
when upgrading to kernel-2.6.7-1.494.2.2 or newer.
Comment 4 Barry K. Nathan 2004-12-21 09:14:14 EST
FWIW, the homepna module parameter is actually an *array*! This means
it really has a form more like the following:


x = homepna setting (0 or 1) for first pcnet32 card (e.g. eth0)
y = homepna setting for second pcnet32 card (e.g. eth1)
d = homepna setting for 8th pcnet32 card
(any more cards beyond this require modifying the source code as far
as I can tell)

and any numbers left off at the end are automatically 0.

So you need something like:

to activate it on the third pcnet32 card.

I figured this out the hard way, by editing modprobe.conf over and
over, wondering why it wasn't working, then reading the pcnet32.c
source code over and over until I finally realized that the source
code comments don't match reality. (I think I'll submit a patch, or at
least discuss it on a mailing list or something, at some point in the
next few days.)

Anyway, I just wanted to mention this for the benefit of anyone who
wants to implement this in system-config-network at this point in time...
Comment 5 Harald Hoyer 2004-12-21 09:30:04 EST
thank you! :)
Comment 6 Barry K. Nathan 2004-12-22 19:19:11 EST
Oops, I made a mistake in my previous comment -- homepna=0,0,0,1
activates it on the *fourth* pcnet32 card (unless you say the first
card is really the zeroth card ;)
Comment 7 Jarkko 2005-06-15 10:33:14 EDT
This bug is still open. Any progress?
Comment 8 Matthew Miller 2006-07-10 19:32:00 EDT
Fedora Core 3 is now maintained by the Fedora Legacy project for security
updates only. If this problem is a security issue, please reopen and
reassign to the Fedora Legacy product. If it is not a security issue and
hasn't been resolved in the current FC5 updates or in the FC6 test
release, reopen and change the version to match.

Thank you!

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