[Avila] Fwd: ixp400_eth.c has to be patched?
Gianluca Mando'
mando at airspot.it
Tue May 16 12:38:55 EDT 2006
John,
The SNMP is a very important protocol for network devices management and its
malfunction indicates that MII support is not correct: this could create
problems in some other network protocols. I found that only the part of SNMP
that try to eccess the network interface fails, the SNMP agent is ok accessing
other MIBs.
Thanks!
Gianluca
Quoting John Carter <john at rhinosys.com>:
>
> Chris,
>
> Great. It sounds like I can use the board without any problems
> unless I need to do SNMP management of it (which I don't at the
> moment). If it looks like I need PHY support I'll go make the
> modifications you suggest.
>
> Thanks!
>
> John
>
>
> On May 15, 2006, at 12:31 AM, Chris Lang wrote:
>
> > 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?
> >
> >
> >>
> >> 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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