Re: [Xen-users] XEN - Broadcom issue: survey

[Pezza <mario.beccia@xxxxxxxxxx>]

Ivan,

I don't konw how to replicate the test on my machine (I use Xen 3.1
opensource, thus I don't think I can run a windows PV guest on it, and I
don't know if it applies also to Linux VMs), but I wouldn't be surprised if
this issue was related to non-PV guests.

I'm surprised to see that you're running the same firmware version of my
"good" machine and still have the problem: at this point, I really don't
know what else we could try.

The only other thing is that I didn't try with Xen 3.0.4 (the same running
on my XenExpress machine): maybe 3.1 has a flaw with these network card? Or
maybe there's a "hidden fix" in the XenExpress supplied kernel?

                                                                                
   
M.



Ivan Porro wrote:
> 
> Sorry to make the counter-example but I have:
> 
> ~# ethtool -i peth0
> driver: bnx2
> version: 1.4.51b
> firmware-version: 2.9.1
> bus-info: 0000:04:00.0
> 
> this driver is the one relased by DELL on Nov. 11, and I have packet 
> drop. The same with driver 1.5.1c from broadcom
> 
> The strange thing is that TX-DRP is 0 until I start a domain. Since I 
> start an HVM, TX-DRP for its vif start incresing.
> 
> If I start an PV machine, it drop only 20 packets and then stop. No more 
> TX-DRP at all...
> 
> So, to isolate the problem, it is related to HVM machine only. At least 
> in my case.
> 
> Ivan
> 
> Pezza wrote:
>> Hey,
>> 
>> please note that if you're using the tg3 driver, it means you're using
>> NetXTreme *not* NetXTreme II (the latter is using the 5708/5706 chipsets,
>> the former some previous releases). 
>> The problem has been observed (but I'd like some confirmations here ;-))
>> using the bnx2 driver, which is specific to NetEXtreme II.
>> 
>> To make sure what driver/version/firmware you're using you can run
>> 'ethtool
>> -i eth0' (replace eth0 with the ethernet device you want to show).
>> 
>> In my case, the "bad" machine shows:
>> 
>> [root@sofia ~]# ethtool -i peth0
>> driver: bnx2
>> version: 1.5.10c
>> firmware-version: 1.9.3
>> bus-info: 0000:03:00.0
>> 
>> while the "good" machine shows:
>> [root@camogli scripts]# ethtool -i eth0
>> driver: bnx2
>> version: 1.5.1c
>> firmware-version: 2.9.1
>> bus-info: 0000:08:00.0
>> 
>> As I said before, the only relevant difference I can find between the 2
>> machines is the eth0 firmware version, but I don't now if and how I can
>> update it on the other one (ref to my previous message for the complete
>> details on the good and bad machine configuration).
>> 
>>                                                                              
>>                            
>> M.
>> 
>> 
>> 
>> 
>> mangoo wrote:
>>> Ivan Porro schrieb:
>>>> I totally agree with Luc Boudreau about this problem.
>>>>
>>>> On modern branded server they ALL use Broadcom chipset... I must admit 
>>>> that:
>>>>
>>>> a) lot of people are experiencing the problem but can tolerate it
>>>>
>>>> or
>>>>
>>>> b) someone already experienced this problem and solved it
>>> Too bad you started a new topic without even trying to describe what 
>>> your problem with broadcom chipsets is?
>>>
>>> I'm running Xen 3.1 (2.6.18 kernel), compiled from sources, on HP 
>>> ProLiant DL320 G3. It uses tg3 for its network cards.
>>>
>>> Works fine.
>>>
>>> 06:01.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5704 
>>> Gigabit Ethernet (rev 10)
>>> 06:01.1 Ethernet controller: Broadcom Corporation NetXtreme BCM5704 
>>> Gigabit Ethernet (rev 10)
>>>
>>>
>>>
>>> -- 
>>> Tomasz Chmielewski
>>> http://lists.wpkg.org
>>>
>>> _______________________________________________
>>> Xen-users mailing list
>>> Xen-users@xxxxxxxxxxxxxxxxxxx
>>> http://lists.xensource.com/xen-users
>>>
>>>
>> 
> 
> 
> -- 
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> 
> 

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