On 09/01/2015 05:47 PM, Matthew Hall wrote:
> On Tue, Sep 01, 2015 at 04:37:18PM +0200, Martin Dra?ar wrote:
>> Dne 1.9.2015 v 15:45 De Lara Guarch, Pablo napsal(a):
>>> 82574L NIC uses em PMD, which does not support more than 1 queue.
>>> Therefore RSS is disabled in the NIC and then you cannot
Dne 1.9.2015 v 16:50 Avi Kivity napsal(a):
> On 09/01/2015 05:47 PM, Matthew Hall wrote:
>> RSS calculations are used to direct packets across multiple RX queues.
>> With
>> only one RX queue it cannot possibly increase performance by enabling it.
>>
>
> As an example, seastar uses the RSS hash
Dne 1.9.2015 v 15:45 De Lara Guarch, Pablo napsal(a):
> 82574L NIC uses em PMD, which does not support more than 1 queue.
> Therefore RSS is disabled in the NIC and then you cannot have RSS hashes.
>
> Thanks,
> Pablo
Hi Pablo,
that is an interesting information. I read the rationale in
Hi Martin,
> -Original Message-
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Martin Dra?ar
> Sent: Monday, August 31, 2015 1:16 PM
> To: dev at dpdk.org
> Subject: [dpdk-dev] Broken RSS hash computation on Intel 82574L
>
> Hi,
>
> I am usin
> On Sep 1, 2015, at 9:47 AM, Matthew Hall wrote:
>
> On Tue, Sep 01, 2015 at 04:37:18PM +0200, Martin Dra?ar wrote:
>> Dne 1.9.2015 v 15:45 De Lara Guarch, Pablo napsal(a):
>>> 82574L NIC uses em PMD, which does not support more than 1 queue.
>>> Therefore RSS is disabled in the NIC and then
On Tue, Sep 01, 2015 at 04:37:18PM +0200, Martin Dra?ar wrote:
> Dne 1.9.2015 v 15:45 De Lara Guarch, Pablo napsal(a):
> > 82574L NIC uses em PMD, which does not support more than 1 queue.
> > Therefore RSS is disabled in the NIC and then you cannot have RSS hashes.
> >
> > Thanks,
> > Pablo
>
>
Hi,
I am using RSS to get identical hash for both directions of a flow.
Everything is working as it should with the Intel 82599ES, but when I
run the same code with the Intel 82574L, then the hash is not calculated
correctly and returns 0 as a hash value for all flows.
I could use the Toeplitz
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