Re: em0 - bge0 failed to work at 1000baseTX

On 4/25/07, Stefan Lambrev <stefan.lambrev@xxxxxxxxxxxx> wrote:
Hello,

Jack Vogel wrote:
> On 4/24/07, Stefan Lambrev <stefan.lambrev@xxxxxxxxxxxx> wrote:
>> Hello,
>>
>> I'm trying to get two gigabit network cards to work together.
>>
>> em0: <Intel(R) PRO/1000 Network Connection Version - 6.2.9> port
>> 0x1000-0x101f mem 0xf0500000-0xf051ffff,0xf0524000-0xf0524fff irq 19 at
>> device 25.0 on pci0
>>
>> em0@pci0:25:0: class=0x020000 card=0x2800103c chip=0x104a8086 rev=0x02
>> hdr=0x00
>> vendor = 'Intel Corporation'
>> class = network
>> subclass = ethernet
>>
>> and broadcom on the other end:
>>
>> bge0: <Broadcom BCM5750 C1, ASIC rev. 0x4201> mem 0xf4100000-0xf410ffff
>> irq 16 at device 0.0 on pci8
>>
>> bge0@pci8:0:0: class=0x020000 card=0x30a3103c chip=0x16fd14e4 rev=0x21
>> hdr=0x00
>> vendor = 'Broadcom Corporation'
>> device = 'BCM5753M NetXtreme Gigabit Ethernet PCI Express'
>> class = network
>> subclass = ethernet
>>
>>
>> When I connect both networks without switch e.g. directly they auto
>> negotiate to:
>> media: Ethernet autoselect (100baseTX <full-duplex>)
>> but I want 1000baseTX :(
>>
>> First thing that I tried was to force both network card with:
>> ifconfig bge0/em0 media 1000baseTX mediaopt full-duplex
>> but this lead to status: no carrier
>>
>> Second step was to set bge link0 and em0 link1, but still "no carrier"
>> (from bge manual)
>>
>> On the machine with em card I have linux installed so I boot under linux
>> and then everything works
>> with autoselect, and I'm able to transfer with speed +50MB/s.
>>
>> When I forced both network cards to 1000baseTX I notice this:
>>
>> em0 media: Ethernet 1000baseTX <full-duplex> (autoselect)
>>
>> ^^^^^^^^
>> bge0 media: Ethernet 1000baseTX <full-duplex> (none)
>>
>> ^^^^
>>
>> Something else that is quite strange is that when I change em media from
>> autoselec to 1000baseTX,
>> I see that for 2-3 seconds there is a connection between cards (e.g.
>> status: active), but just for 2-3 seconds
>> and then it disconnects again. (ping between hosts works for 2 seconds)
>> At this time ifconfig shows:
>> em0
>> media: Ethernet 1000baseTX <full-duplex>
>>
>> ^^^^^^ no autoselect here ?
>> status: active
>>
>> and bge0:
>> media: Ethernet autoselect (1000baseTX <full-duplex>) ( I left bge to
>> autoselect at some point as I saw it does not change a thing..)
>> status: active
>>
>> I compiled new kernel with
>> #define EM_MASTER_SLAVE 2 (and then 3)
>> in if_em.h (as I'm suspecting em driver ..)
>> but still no success.
>>
>> Last thing that I notice while (re)booting freebsd server with em0 is
>> that
>> during starting program and rc scripts the status of the network changed
>> from 100mbps -> 1000mbps -> no carrier -> 100mbps.
>>
>> So any ideas how to get my network working at gigabit speeds? :)
>>
>> P.S. both machines are running freebsd 6.2 stable - em0 is i386 and bge0
>> is on amd64.
>> em0 was tested with 6.2-release too.
>>
>> Thanks in advance.
>
> Do me a favor please, go to downloadfinder.intel.com and get my latest
> driver, its version 6.3.9, since ICH8 is fairly recent and has had some
> late-breaking fixes in shared code its possible that will solve things.
> You will want to use this driver as a module, its a hassle to build into
> the kernel (although there is a patch to allow you to do that if you
> wish).
>
> Please report back EITHER if it works or fails, if it does still fail
> I will
> have our test/validation group get hardware set up to look into this.
>
> Jack
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Unfortunately 6.3.9 have the same behavior as 6.2.9 and I can't get both
network cards to work at gigabit speed.
Any other ideas ? :)

Actually yes, I talked with the Linux engineer in our group that oversaw
the release of ICH8 and there is a problem with OS vs Management
use of the NIC that was discovered and fixed in Linux recently, and
my driver does not yet have this.

Let me come up with a patch for you to test, it may take me a day,
things get busy here at times :)

Jack
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