Bug 139089

The madwifi driver needs to support ethtool GDRVINFO; that should
clear most of this up.

Looking at the madwifi source - it appears to support 'GDRVINFO'. What
is the exact filed that should be set to 'ath' for kudzu to work?

I'm guessing its probably a 1 line change to the driver.

Thanks,

--
ath_ioctl_ethtool(struct ath_softc *sc, int cmd, void *addr)
{
        struct ethtool_drvinfo info;

        if (cmd != ETHTOOL_GDRVINFO)
                return -EOPNOTSUPP;
        memset(&info, 0, sizeof(info));
        info.cmd = cmd;
        strncpy(info.driver, dev_info, sizeof(info.driver)-1);
        strncpy(info.version, version, sizeof(info.version)-1);
        return copy_to_user(addr, &info, sizeof(info)) ? -EFAULT : 0;
}

It needs to set the pci path:

        strcpy(info.bus_info, pci_name(whatever its private pci struct
is));

The problem with kudzu seems to be not only the eth1 config files.

Kudzu must do something else, which breaks the functionality of
madwifi. Unfortunately I don'nt know enough details about how kudzu works.


The Workaround, which works for me, is:

-  Install madwifi as described in it's readme ( make; make install) 
-  check, if the line  "alias ath0  ath_pci" is present 
   in /etc/modprobe.conf
-  reboot
-  if kudzu comes up to tell you it found new atheros hardware,
   tell kudzu to *ignore* it completely, i.e. not to change
   any configuration and not to care about it in the future
-  open neat and create a new interface. With the current
   version (fc3) ath0 is listed in the hardware section, so you can
   easily do that and don't need to edit the files in
   /etc/sysconfig/network-scripts etc. manually

If madwifi doesn't work, try the following:

-  undelete the files in /lib/modules/<version>/net/*
-  run depmod  -ae  
-  eventually reboot
-  reinstall madwifi using the procedure above. 


If you follow that procedure, an entry ath0 is generated in
/etc/sysconfig/hwconfig.  Eventually you have to delete a formerly
generated entry for eth1.

Bill, the following addition appears to work.

 strcpy(info.bus_info, pci_name((struct pci_dev *)sc->sc_bdev));

However kudzu is unable to configure 'ath0' (does it do any wireless
devices?) - but 'neat' does configures it fine.

thanks,
Satish

How exactly does it *not* configure it, on first detection - does it
pop up that it's new, etc?

'not configure' refers to 'wireless settings'

kudzu does pop-up a menu with configure option. Choosing configure
lets me set dhcp/static ip adress settings (which makes sense for
wired network cards). This creates
/etc/sysconfig/network-scripts/ifcfg-ath0 with:

[root@asterix etc]# cat /etc/sysconfig/network-scripts/ifcfg-ath0
# Atheros Communications, Inc. AR5211 802.11ab NIC
DEVICE=ath0
ONBOOT=yes
BOOTPROTO=dhcp
HWADDR=xx:xx:xx:xx:xx:xx

The wireless require at-least TYPE=Wireless/ESSID/KEY options - which
kudzu currently doesn't set.  And I'm not sure if kudzu is supporsed
to do anything more (code/functionality overlap with
system-config-network)

So, for wireless devices - perhaps kudzu shouldn't even pop up this
'configure' option - since it can't configure it anyway?

Correct; the tool kudzu calls doesn't do wireless options.