Just to clarify - enabling the PFVMTXSW register for a VF won't cause all
TX traffic to be looped back.
Rather, it will enable TX packets whose destination MAC address matches the
VF's MAC address to be placed in the RX queue.
Is there a performance penalty enabling this?
If so, I can implement a n
On 02/13/2015 05:12 AM, Yotam Rubin wrote:
> Just to clarify - enabling the PFVMTXSW register for a VF won't cause all
> TX traffic to be looped back.
> Rather, it will enable TX packets whose destination MAC address matches the
> VF's MAC address to be placed in the RX queue.
> Is there a performa
Thanks, that's a good point.
Some applications such as ours, gains from this behaviour.
I was thinking about adding an mbox interface so that individual VF's may
be configured for loopback tx. By default, this configuration will be
disabled for all VF's.
Makes sense?
On Fri, Feb 13, 2015 at 3:34 P
Hi Aaron,
On Thursday, 12. February 2015 23:28:27 Brown, Aaron F wrote:
> I do not have any real info. I had been asked to try and reproduce some
> unit hangs (maybe for this) recently and did not succeed in producing
> them on the parts I have. Reading through the thread I see this is
> showing
On 02/13/2015 08:46 AM, Yotam Rubin wrote:
> Thanks, that's a good point.
> Some applications such as ours, gains from this behaviour.
> I was thinking about adding an mbox interface so that individual VF's may
> be configured for loopback tx. By default, this configuration will be
> disabled for a
> -Original Message-
> From: Hiroshi Shimamoto [mailto:h-shimam...@ct.jp.nec.com]
> Sent: Thursday, February 12, 2015 8:45 PM
> To: Skidmore, Donald C; Kirsher, Jeffrey T
> Cc: Alexander Duyck; Bjørn Mork; e1000-devel@lists.sourceforge.net;
> net...@vger.kernel.org; Choi, Sy Jong; linux-k
On 02/13/2015 12:26 PM, Skidmore, Donald C wrote:
>
>
>> -Original Message-
>> From: Hiroshi Shimamoto [mailto:h-shimam...@ct.jp.nec.com]
>> Sent: Thursday, February 12, 2015 8:45 PM
>> To: Skidmore, Donald C; Kirsher, Jeffrey T
>> Cc: Alexander Duyck; Bjørn Mork; e1000-devel@lists.source
Our packets are mostly unicast.
I'll elaborate on what we use loopbacking for:
1. Benchmarks - Since we rely on NIC's offloading abilities when measuring
our application's throughput, we can't use the loopback as its skews the
results.
2. Self-Diagnostics - We'd like to be able to loopback traffic
