From: "Trahe, Fiona" <fiona.trahe@intel.com>
To: Chinmaya Dwibedy <ckdwibedy@gmail.com>,
"users@dpdk.org" <users@dpdk.org>
Cc: "Trahe, Fiona" <fiona.trahe@intel.com>
Subject: Re: [dpdk-users] Maximum number of queue pairs per QAT device (using dpdk-2.2.0)
Date: Tue, 3 Jan 2017 11:06:36 +0000 [thread overview]
Message-ID: <348A99DA5F5B7549AA880327E580B43589161B2C@IRSMSX101.ger.corp.intel.com> (raw)
In-Reply-To: <CAMHS8REx29sGY1BkOPA0m4Gb45314qo4Kx1Gz+XpFWb7Wj00Kw@mail.gmail.com>
Hi Chinmaya,
> -----Original Message-----
> From: users [mailto:users-bounces@dpdk.org] On Behalf Of Chinmaya
> Dwibedy
> Sent: Thursday, December 29, 2016 1:13 PM
> To: users@dpdk.org
> Subject: [dpdk-users] Maximum number of queue pairs per QAT device (using
> dpdk-2.2.0)
>
> Hi,
>
>
> I am using the dpdk-2.2.0. I find the maximum number of queue pairs
> supported by the AESNI device is equal to value of
> CONFIG_RTE_AESNI_MB_PMD_MAX_NB_QUEUE_PAIRS (in
> dpdk-2.2.0/config/common_linuxapp). I have created a mapping between
> logical core ID and crypto device index. Also want to keep one queue per
> IPsec security association (Inbound or Outbound). With this, even same core
> and crypto device processes the packet of two security association (One is
> inbound and another is outbound) without intermixing.
>
>
> I find the max_nb_queue_pairs to be 2 (via rte_cryptodev_info_get () for
> QAT device. Is there any configuration to increase the maximum number of
> queue pairs per QAT device? If not , how can I use/support multiple queues
> per QAT device ? Please suggest.
>
>
> Note that, I have assigned 16 VFs to VM (Openstack).
As the QAT queues are hardware elements the max is fixed and there are only 2 available for symmetric crypto.
So with 16 VFs there are 32 queue-pairs available to you.
Is 32 not enough for your use-case?
Or is there a reason you want the qps to be within the same QAT device?
>
>
> Regards,
>
> Chinmaya
prev parent reply other threads:[~2017-01-03 11:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-29 13:12 Chinmaya Dwibedy
2017-01-03 5:54 ` Chinmaya Dwibedy
2017-01-03 11:06 ` Trahe, Fiona [this message]
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