This series is a proposal of multiqueue API for ODP.
Modern network adapters (both physical and virtual) support multiple
hardware queues. Assigning separate CPU core for processing of each
queue allows to scale throughput (in best case - linearly).
This series should be considered a prototype.
T
On Wed, Oct 14, 2015 at 02:32:37PM +0300, Nikita Kalyazin wrote:
> This series is a proposal of multiqueue API for ODP.
> Modern network adapters (both physical and virtual) support multiple
> hardware queues. Assigning separate CPU core for processing of each
> queue allows to scale throughput (i
Hi Stuart,
Thanks for your feedback.
> One thing that is missing here is a method for the application to
> configure how packets are distributed, i.e. which fields in the packet
> are used when calculating the flow hash (not necessarily the hash
> algorithm itself, that can be implementation def
On 19 October 2015 at 19:16, Nikita Kalyazin wrote:
> Hi Stuart,
>
>
> Thanks for your feedback.
>
> > One thing that is missing here is a method for the application to
> > configure how packets are distributed, i.e. which fields in the packet
> > are used when calculating the flow hash (not nece
Hi,
> [Alex] ODP queues are neither software nor hardware by definition, each
> implementation is free to implement them as they see fit. Also PacketI/O
> abstraction is not an abstraction for a NIC device. The ODP way to use
> multiple
> queues for ingress is through the classifier. There was a
On Thu, Oct 22, 2015 at 06:06:58PM +0300, Nikita Kalyazin wrote:
> Hi,
>
> > [Alex] ODP queues are neither software nor hardware by definition, each
> > implementation is free to implement them as they see fit. Also PacketI/O
> > abstraction is not an abstraction for a NIC device. The ODP way to u
On 22 October 2015 at 18:06, Nikita Kalyazin wrote:
> Hi,
>
> > [Alex] ODP queues are neither software nor hardware by definition, each
> > implementation is free to implement them as they see fit. Also PacketI/O
> > abstraction is not an abstraction for a NIC device. The ODP way to use
> multipl
To sum up, we need the following things for proper multiqueue ingress support
in ODP:
- a way to assign multiple queues to a CoS (up to the number of queues the
specific NIC supports), e.g., odp_cos_queue_set() -> odp_cos_queues_set();
- a way to define multiple input default queues (in the case
Hi Alex,
> I understand your reasoning but ODP Packet I/O (pktio) is _not_ (yet?) a NIC
> abstraction. The fact is that in current ODP design ingress queues are
> "connected" to the pktio device by the configuration of classifier or as
> default/error CoS queues. Classifier can be changed dynamica
On 26 October 2015 at 16:28, Nikita Kalyazin wrote:
> Hi Alex,
>
> > I understand your reasoning but ODP Packet I/O (pktio) is _not_ (yet?) a
> NIC
> > abstraction. The fact is that in current ODP design ingress queues are
> > "connected" to the pktio device by the configuration of classifier or
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