Richard Melville wrote:
>
>
> Claus Regelmann said:-
>
>
>
> I recently finished installing LFS 6.5 on my old Laptop (IBM-T21).
> I added SYSFSUTILS-2.1.0 and PCMCIAUTILS-0.15, put the TR card in,
> called pcmcia-socket-startup, found the tr0 interface, configured
> tr0, and tried to ping another machine in my network.
> -- no response --
> I continued inverstigating the situation with wireshark, and found
> that my T21 sends ARP requests and responces with an unknown HW type
> of 0x320.The correct HW type should be 0x06.
>
> Where does the wrong HW type come from??
> 'cat /sys/bus/pcmcia/devices/0.0/net/tr0/type' displays 800, which
> is equal to 0x320
>
> Do you have all the correct drivers configured in the kernel?
>
> Richard
>
Yes, all modules are loaded and the link layer is running. The problem
comes form the arp traffic where my T21 uses a wrong ARPHRD value.
But I found a qnd work arround that works for me:
---------------------------------- patch for ibmtr_cs.c -------
/* Set up the Token-Ring Controller Configuration Register and
turn on the card. Check the "Local Area Network Credit Card
Adapters Technical Reference" SC30-3585 for this info. */
ibmtr_hw_setup(dev, mmiobase);
-> dev->type=0x06;
-> printk (KERN_INFO " ibmtr_cs after HW setup: dev->type=%d\n",dev->type);
link->dev_node = &info->node;
----------------------------------------------------------------
But this patch is not a real fix!
if you lock into include/linux/if_arp.h you will find
#define ARPHRD_IEEE802 6
... and ...
#define ARPHRD_IEEE802_TR 800
I've several desktops in my net, the oldest one has even an ISA adapter (module
ibmtr),
the others have IBM-PCI adapter (module olympic), and all these machines use
ARPHRD_IEEE802.
So remaining question is: why does 'ibmtr_cs' use ARPHRD_IEEE802_TR.
Shall I submit this problem to the LFS-DEV mailing list?
Claus
P.S.: I also tested a very old PS/2 micro channel machine. It also uses
ARPHRD_IEEE802.
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