Re: [Xen-ia64-devel] [PATCH]E100 network card emulator

[Jarod Wilson <jwilson@xxxxxxxxxx>]

You, Yongkang wrote:
> Em, it might be the issue of using default Linux e100 driver/ 
> Qin, you can try with eepro100 driver.

RHEL5 definitely uses e100 by default over eepro100, and I believe RHEL4
does as well. At a glance, I don't even think we build eepro100 for
RHEL5 anymore, dunno about RHEL4.



>> -----Original Message-----
>> From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx 
>> [mailto:xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf 
>> Of Zhang, Xing Z
>> Sent: Wednesday, November 28, 2007 10:11 PM
>> To: Mu, Qin
>> Cc: xen-ia64-devel
>> Subject: RE: [Xen-ia64-devel] [PATCH]E100 network card emulator
>>
>>
>>
>>> Hi, Xing
>>>
>>> The E100 network card emulator can't keep functioning in guest
>>> HVM with the following run environment.
>>>
>>>     Xen:
>>>             1. xen unstable tree, Cset = 16470 (latest)
>>>             2. open guest firmware, Cset=35:ebf7052731ec (latest)
>>>
>>>     Guest HVM Configuration:
>>>             1. memory=1024
>>>             2. vcpus=2
>>>             3. acpi=1
>>>             4. apic=1
>>>             5. sdl=1
>>>             6. vif=['bridge=xenbr0, type=ioemu, model=e100']
>>>             7. serial=pty
>>>             8. guest_os_type=linux
>>>
>>> Both RHEL5GA and RHEL4u3 as guest HVM OS are used in my
>>> experiments. E100 network card can be successfully recognized
>>> and setup during system booting. Although it indeed works as
>>> expected when use ping, ssh and scp command, the happy work time
>>> can't last more than 5 minutes. It always failed to require IP
>>> address again by using "ifup eth0" or "service network restart".
>>>
>>> Are there key points missed to make the E100 network care
>>> emulator functions in guest HVM?
>>>
>>> Your help will be appreciated very much!
>>>
>>> Amy
>>>
>>>
>> Let's make clear about it. 
>> 1. You use linux guest, don't you?
>> 2. You boot HVM with eepro100 driver in linux?
>> 3. You ping HVM guest and failed after 5 minutes? Do you get 
>> "no available buffer" message in guest?
>> If so, this is a known issue, I met it when I use ping in 
>> linux guest with eepro100 driver. When I changing to e100 
>> driver with an interrupt fixing patch, "ping" works well. 
>> So I don't know how native performs. 
>> Firstly, I want to know whether you get error info while you use
>> "ping" in guest. 
>>
>> BTW: while "ping" failed with "no available buffer" info, 
>> network doesn't hang.


-- 
Jarod Wilson
jwilson@xxxxxxxxxx

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