From: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
To: Maxime Coquelin <maxime.coquelin@redhat.com>,
dev@dpdk.org, chenbo.xia@intel.com, amorenoz@redhat.com,
david.marchand@redhat.com, ferruh.yigit@intel.com,
michaelba@nvidia.com, viacheslavo@nvidia.com,
xiaoyun.li@intel.com
Cc: nelio.laranjeiro@6wind.com, yvugenfi@redhat.com, ybendito@redhat.com
Subject: Re: [dpdk-dev] [PATCH v6 1/5] net/virtio: add initial RSS support
Date: Wed, 27 Oct 2021 17:58:25 +0300 [thread overview]
Message-ID: <4f94bc77-2f84-3fb6-514a-905912c14674@oktetlabs.ru> (raw)
In-Reply-To: <20211027142213.556166-2-maxime.coquelin@redhat.com>
On 10/27/21 5:22 PM, Maxime Coquelin wrote:
> Provide the capability to update the hash key, hash types
> and RETA table on the fly (without needing to stop/start
> the device). However, the key length and the number of RETA
> entries are fixed to 40B and 128 entries respectively. This
> is done in order to simplify the design, but may be
> revisited later as the Virtio spec provides this
> flexibility.
>
> Note that only VIRTIO_NET_F_RSS support is implemented,
> VIRTIO_NET_F_HASH_REPORT, which would enable reporting the
> packet RSS hash calculated by the device into mbuf.rss, is
> not yet supported.
>
> Regarding the default RSS configuration, it has been
> chosen to use the default Intel ixgbe key as default key,
> and default RETA is a simple modulo between the hash and
> the number of Rx queues.
>
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
next prev parent reply other threads:[~2021-10-27 14:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-27 14:22 [dpdk-dev] [PATCH v6 0/5] Virtio PMD RSS support & RSS fixes Maxime Coquelin
2021-10-27 14:22 ` [dpdk-dev] [PATCH v6 1/5] net/virtio: add initial RSS support Maxime Coquelin
2021-10-27 14:58 ` Andrew Rybchenko [this message]
2021-10-29 17:40 ` Ferruh Yigit
2021-10-29 17:54 ` Maxime Coquelin
2021-10-27 14:22 ` [dpdk-dev] [PATCH v6 2/5] app/testpmd: fix RSS key length Maxime Coquelin
2021-10-27 14:22 ` [dpdk-dev] [PATCH v6 3/5] app/testpmd: fix RSS type display Maxime Coquelin
2021-10-27 14:22 ` [dpdk-dev] [PATCH v6 4/5] net/mlx5: fix RSS RETA update Maxime Coquelin
2021-10-27 14:22 ` [dpdk-dev] [PATCH v6 5/5] app/testpmd: add missing flow types in port info Maxime Coquelin
2021-10-29 10:36 ` [dpdk-dev] [PATCH v6 0/5] Virtio PMD RSS support & RSS fixes Maxime Coquelin
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