[Avila] Fwd: ixp400_eth.c has to be patched?
Chris Lang
chris at unixstudios.net
Mon May 15 00:31:36 EDT 2006
Hey John,
1. I am unaware of any plans for any future BSP releases, this would be a
good question directed toward GW.
2. I am also unaware of the current limitations of running without
support of the PHY. I have run the board and transferred a good amount of
TCP/UDP data through it without any issues. The issue reported on this list
(SNMP agent) is the first that I have personally heard of, and I have yet to
actually look into the issue.
Here is what I do know about the issue(just looking at it for aprox 5min),
- The definition of the PHY ID's are at
snapgear/modules/ixp425/ixp400-2.0/ixp400_xscale_sw/src/ethMii/IxEthMii_p.h,
at the bottom of the file is the defenitions of the supported phy's.
- The PHY ID of the National phy is 0x20005c90
- There will be some work that needs to be done in
snapgear/modules/ixp425/ixp400-2.0/ixp400_xscale_sw/src/ethMii/IxEthMii.c,
this is where the configuration of the phy is done along with link status,
etc...
Thanks,
Chris L
----- Original Message -----
From: "John Carter" <john at rhinosys.com>
To: "Avila" <avila at lists.unixstudios.net>
Sent: Saturday, May 13, 2006 3:58 PM
Subject: Re: [Avila] Fwd: ixp400_eth.c has to be patched?
Subject: [Avila] >
> Chris,
>
> Do you know if there are plans to support this PHY in upcoming BSP's?
>
> What are the limitations when running the current BSP withhout the
> support?
>
>
> Thanks,
>
> John Carter
>
>
>
> On May 12, 2006, at 12:40 PM, Chris Lang wrote:
>
>> Gianluca,
>> The issue that you are facing is actually due to the fact that the
>> phy on the 2345 does not currently have any support in the 0.6 BSP.
>> However, as you have seen, it can work without the phy being supported.
>> Also, the IAL that is being used in the 0.6 BSP is 2.0. The phy that is
>> on the board I believe is a National DP83848.
>> So, basicly the IAL would need to be patched to support this phy.
>>
>> Thanks,
>> Chris Lang
>>
>>
>>
>>
>>
>> ----- Original Message ----- From: "Gianluca Mando'" <mando at airspot.it>
>> To: <avila at lists.unixstudios.net>
>> Sent: Friday, May 12, 2006 6:02 AM
>> Subject: [Avila] Fwd: ixp400_eth.c has to be patched?
>>
>>
>>> Hi all,
>>> the board support package 0.6 (kernel 2.6) seems to me not supporting
>>> correctly
>>> the Media Indipendent Interface (MII) part of the ethernet driver.
>>> It does not generate any explicit message on command line but services
>>> such as
>>> SNMP agent does not function properly when interfacing the ethernet
>>> NIC.
>>>
>>> Any idea on how to solve this problem? has to be applied patch IAL
>>> 1.5.1 from
>>> Intel site? It seems to address a similar or the same problem.
>>>
>>> Gianluca
>>>
>>> ----- Messaggio inoltrato da Gianluca Mando' <mando at airspot.it> -----
>>> Data: Wed, 10 May 2006 20:05:27 +0200
>>> Da: Gianluca Mando' <mando at airspot.it>
>>> Rispondi-A: Gianluca Mando' <mando at airspot.it>
>>> Oggetto: ixp400_eth.c has to be patched?
>>> A: avila at lists.unixstudios.net
>>>
>>>
>>> Hi all,
>>>
>>> loading my GW2345 with BSP 0.6 I can find the following in /var/
>>> log/message:
>>>
>>> <12>Feb 3 14:02:35 kernel: ixp400_eth: ixEthMiiLinkStatus failed on
>>> PHY0.
>>> <12>Feb 3 14:02:35 kernel: ^ICan't determine
>>> <12>Feb 3 14:02:35 kernel: the auto negotiated parameters. Using
>>> default
>>> values.
>>>
>>> Furthermore when I launch the following net-snmp command from a host:
>>>
>>> snmpwalk -v1 -c wmrtetra 192.168.3.2 interface
>>>
>>> or also simply starting snmpd on target, the target does not answer and
>>> I can
>>> find in /var/log/messages:
>>>
>>> <11>Feb 3 15:35:34 kernel: ixp400_eth: Error reading MII reg 0 on phy
>>> 0
>>> <11>Feb 3 15:35:34 kernel: ixp400_eth: Error reading MII reg 1 on phy
>>> 0
>>> <11>Feb 3 15:35:34 kernel: ixp400_eth: Error reading MII reg 2 on phy
>>> 0
>>> <11>Feb 3 15:35:34 kernel: ixp400_eth: Error reading MII reg 3 on phy
>>> 0
>>> <11>Feb 3 15:35:34 kernel: ixp400_eth: Error reading MII reg 4 on phy
>>> 0
>>> <11>Feb 3 15:35:34 kernel: ixp400_eth: Error reading MII reg 5 on phy
>>> 0
>>> <11>Feb 3 15:35:34 kernel: ixp400_eth: Error reading MII reg 6 on phy
>>> 0
>>> <11>Feb 3 15:35:34 kernel: ixp400_eth: Error reading MII reg 7 on phy
>>> 0
>>>
>>> I think the problem could be in the following block of code in file
>>> ixp400_eth.c:
>>>
>>>
>>> res = ixEthMiiLinkStatus(phyNum,
>>> &linkUp,
>>> &speed100,
>>> &newDuplex,
>>> &autonegotiate);
>>> /* release the MII register access mutex */
>>> up(&miiAccessMutex);
>>>
>>> #if defined(CONFIG_LEDMAN)
>>> ledman_cmd((linkUp ? LEDMAN_CMD_ON : LEDMAN_CMD_OFF),
>>> (priv->port_id ? LEDMAN_LAN2_LINK : LEDMAN_LAN1_LINK));
>>> #endif
>>>
>>> if (res != IX_ETH_ACC_SUCCESS)
>>> {
>>> #if defined(CONFIG_LEDMAN)
>>> goto out;
>>> #else
>>> P_WARN("ixEthMiiLinkStatus failed on PHY%d.\n"
>>> "\tCan't determine\nthe auto negotiated parameters. "
>>> "Using default values.\n",
>>> phyNum);
>>>
>>> /* this shouldn't happen. exit the thread if it does */
>>> return -1;
>>> #endif
>>> }
>>>
>>> ....
>>>
>>> In particular, googling I found that the problem could be the
>>> comparison:
>>>
>>> if (res != IX_ETH_ACC_SUCCESS)
>>>
>>> This patch from Intel "GPL_ixp400LinuxEthernetDriverPatch-1_5_1.zip"
>>> substitute
>>> privious istruction with
>>>
>>> if (res != IX_SUCCESS)
>>>
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>>>
>>> ----- Fine messaggio inoltrato -----
>>>
>>>
>>>
>>>
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