Hallo again,
installing OpenSuse 11.2 on desktop maschine with a TR-PCI card (driver
olympic),
I reexperienced the problem described below. I dived further into the problem
-- almost by trial and error -- and found that the error is in
'.../net/ipv4/arp.c' in the function 'arp_create'.
--------------------(kernel 2.6.30.4)--------------------------------
/*
* Exceptions everywhere. AX.25 uses the AX.25 PID value not the
* DIX code for the protocol. Make these device structure fields.
*/
printk(KERN_WARNING "arp_create hwtype=%d
%d\n",dev->type,ARPHRD_IEEE802_TR); <<my test code
switch (dev->type) {
default:
arp->ar_hrd = htons(dev->type);
arp->ar_pro = htons(ETH_P_IP);
break;
#if defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
case ARPHRD_AX25:
arp->ar_hrd = htons(ARPHRD_AX25);
arp->ar_pro = htons(AX25_P_IP);
break;
#if defined(CONFIG_NETROM) || defined(CONFIG_NETROM_MODULE)
case ARPHRD_NETROM:
arp->ar_hrd = htons(ARPHRD_NETROM);
arp->ar_pro = htons(AX25_P_IP);
break;
#endif
#endif
#ifdef CONFIG_FDDI
case ARPHRD_FDDI:
arp->ar_hrd = htons(ARPHRD_ETHER);
arp->ar_pro = htons(ETH_P_IP);
break;
#endif
// #ifdef CONFIG_TR <===============================
case ARPHRD_IEEE802_TR:
printk(KERN_WARNING "arp_create: IEEE802_TR\n");
arp->ar_hrd = htons(ARPHRD_IEEE802);
arp->ar_pro = htons(ETH_P_IP);
break;
// #endif <==================================
}
arp->ar_hln = dev->addr_len;
arp->ar_pln = 4;
After commenting the cond. compilation of CONFIG_TR all works.
So the question is why CONFIG_TR is undefined allthought .config says:
...
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
CONFIG_TR=m
# CONFIG_IBMOL is not set
# CONFIG_IBMLS is not set
...
Claus
--------------------------------------------------------------
Claus Regelmann wrote:
> I forward this problem to the lfs-dev-list now.
> If anybody can give me a hint where to start searching the problem
> in the kernel code, I'll try to fix it.
>
> Claus
> ------------------------------------------------------------------
> -------- Original Message --------
> Subject: Re: PCMCIA, IBMTR_CS, ARP-HW-TYPE
> Date: Sat, 3 Oct 2009 10:29:34 -0800
> From: ALIP BUDIANTO <rabbit8...@gmail.com>
> Reply-To: BLFS Support List <blfs-supp...@linuxfromscratch.org>
> To: BLFS Support List <blfs-supp...@linuxfromscratch.org>
> References: <e1d873ab0910030309u2adafd7cpbc8c044e99fc0...@mail.gmail.com>
> <4ac796ee.5070...@rgc1.inka.de>
>
> If its the kernel mabye yes.
> If its on only BLFS stay here unlesss the LFS build affects BLFS.
>
> On Sat, Oct 3, 2009 at 10:24 AM, Claus Regelmann <r...@rgc1.inka.de> wrote:
>> 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 investigating 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 the 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.
>> --
>> http://linuxfromscratch.org/mailman/listinfo/blfs-support
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>>
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