[Intel-wired-lan] [E1000-devel] i40e card Tx resets

[zhuyj <zyjzyj2000@gmail.com>]

On 03/17/2016 10:20 AM, zhuyj wrote:
> On 03/16/2016 10:36 PM, Sowmini Varadhan wrote:
>> On (03/16/16 19:46), zhuyj wrote:
>>
>>> It is busy today. Tomorrow I will share the steps about pktgen tools.
>> Ok. I can give that a try on my machine. It would be good to
>> have some way to reproduce this as simply as possible, maybe
>> we can take the discussion to netdev to see if others there
>> have experienced this.
>>
>> --Sowmini
>>
> 1. modprobe NET_PKTGEN
>
> 2. download the tar file and uncompress to any directory.
> This tar file is from kernel. It is in samples/pktgen/
Sorry. The tar file is in the attachment. Please check it.

Zhu Yanjun
>
> 3. cd pktgen
>
> 4. pktgen_sample02_multiqueue.sh -i ethx -s size -t cpu_number
>
> If size is set to a big number, the similar defect will occur.
> Adjust this size to a appropriate number, my defect will not occur.
>
> In the test, I found some types igb nic, such as i210, will work well 
> no matter the size is a big number.
> some nic, such as 82580, it will not work well if the size is too big.
>
> As such, I think my problem results from the hardware and the big size 
> triggers this problem.
>
> I hope this can help us all.
>
> Zhu Yanjun
>

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