From: Olivier Matz <olivier.matz@6wind.com>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
Xueming Li <xuemingl@mellanox.com>,
"Lu, Wenzhuo" <wenzhuo.lu@intel.com>,
"Wu, Jingjing" <jingjing.wu@intel.com>,
Yongseok Koh <yskoh@mellanox.com>,
Shahaf Shuler <shahafs@mellanox.com>,
"Iremonger, Bernard" <bernard.iremonger@intel.com>,
"Yigit, Ferruh" <ferruh.yigit@intel.com>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v6 1/2] ethdev: introduce generic IP/UDP tunnel checksum and TSO
Date: Mon, 23 Apr 2018 11:55:41 +0200 [thread overview]
Message-ID: <20180423095541.4wsjundovqouikcw@platinum> (raw)
In-Reply-To: <25401990.h546MBpoIl@xps>
On Wed, Apr 18, 2018 at 08:02:35PM +0200, Thomas Monjalon wrote:
> 18/04/2018 18:45, Ananyev, Konstantin:
> > From: Thomas Monjalon
> > > 18/04/2018 15:58, Xueming Li:
> > > > The new flag PKT_TX_TUNNEL_IP is redundant with PKT_TX_OUTER_IP_CKSUM.
> > > > The old flag PKT_TX_OUTER_IP_CKSUM can be deprecated and removed in
> > > > later release.
> > > >
> > > > Signed-off-by: Xueming Li <xuemingl@mellanox.com>
> > >
> > > Except a small comment below, it looks OK.
> > >
> > > Acked-by: Thomas Monjalon <thomas@monjalon.net>
> > >
> > > Please send a deprecation notice for PKT_TX_OUTER_IP_CKSUM.
> >
> > I probably missed something, but why PKT_TX_OUTER_IP_CKSUM
> > is supposed to be deprecated?
>
> Because PKT_TX_TUNNEL_* flags sepersede it. I think we need to discuss it.
>
> We use the offload flags PKT_TX_TUNNEL_* when we request some offloads
> in the outer and the inner headers at the same time.
> When setting a tunnel flag PKT_TX_TUNNEL_*, it can be expected that
> the outer checksums will be offloaded, otherwise it is almost
> impossible to request an offload in the inner header.
> In the case of an UDP tunnel, any change in the inner packet will
> require an UDP checksum update.
> In the case of an IP tunnel, a change of the inner packet size
> (like TSO) will require an IP checksum update.
>
> If we really require PKT_TX_OUTER_IP_CKSUM to be set in addition to
> PKT_TX_TUNNEL_* flags, then we should add more PKT_TX_OUTER_*_CKSUM,
> like PKT_TX_OUTER_UDP_CKSUM which is missing.
I agree, I think PKT_TX_TUNNEL_* implies PKT_TX_OUTER_IP_CKSUM.
And I don't see use-case where we only need PKT_TX_OUTER_IP_CKSUM,
because in that case we can use PKT_TX_IP_CKSUM.
But this can be discussed in a second step, for now I think it's safer
to keep it as is.
Olivier
next prev parent reply other threads:[~2018-04-23 9:55 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-09 14:11 [dpdk-dev] [PATCH 0/6] Support generic tunnel TX csum " Xueming Li
2018-01-09 14:11 ` [dpdk-dev] [PATCH 1/6] net/mlx5: support tx swp tunnel offloading Xueming Li
2018-01-29 15:08 ` [dpdk-dev] [PATCH v2 1/5] ethdev: introduce Tx generic tunnel offloads Xueming Li
2018-01-29 16:49 ` Ananyev, Konstantin
2018-01-30 3:01 ` Xueming(Steven) Li
2018-01-30 13:28 ` Ananyev, Konstantin
2018-01-30 15:27 ` Xueming(Steven) Li
2018-01-30 15:33 ` Ananyev, Konstantin
2018-01-30 15:47 ` Xueming(Steven) Li
2018-01-30 16:02 ` Ananyev, Konstantin
2018-01-30 16:10 ` Xueming(Steven) Li
2018-01-30 17:04 ` Ananyev, Konstantin
2018-01-30 17:54 ` Xueming(Steven) Li
2018-01-30 20:21 ` Thomas Monjalon
2018-01-31 15:20 ` Xueming(Steven) Li
2018-01-31 15:17 ` Xueming(Steven) Li
2018-01-29 15:08 ` [dpdk-dev] [PATCH v2 2/5] app/testpmd: testpmd support " Xueming Li
2018-01-29 15:08 ` [dpdk-dev] [PATCH v2 3/5] net/mlx5: separate TSO function in Tx data path Xueming Li
2018-01-29 15:08 ` [dpdk-dev] [PATCH v2 4/5] net/mlx5: support generic tunnel offloading Xueming Li
2018-01-29 15:08 ` [dpdk-dev] [PATCH v2 5/5] net/mlx5: allow max 192B TSO inline header length Xueming Li
2018-03-05 14:51 ` [dpdk-dev] [PATCH v3 0/7] support generic tunnel Tx checksum and TSO Xueming Li
2018-03-05 14:51 ` [dpdk-dev] [PATCH v3 1/7] ethdev: introduce Tx generic tunnel L3/L4 offload Xueming Li
2018-03-21 1:40 ` Yongseok Koh
2018-03-22 13:55 ` Xueming(Steven) Li
2018-03-28 12:52 ` Olivier Matz
2018-04-04 8:20 ` Xueming(Steven) Li
2018-03-05 14:51 ` [dpdk-dev] [PATCH v3 2/7] app/testpmd: testpmd support Tx generic tunnel offloads Xueming Li
2018-03-05 14:51 ` [dpdk-dev] [PATCH v3 3/7] app/testpmd: add more GRE extension to csum engine Xueming Li
2018-03-05 14:51 ` [dpdk-dev] [PATCH v3 4/7] app/testpmd: introduce VXLAN GPE to csum forwarding engine Xueming Li
2018-03-05 14:51 ` [dpdk-dev] [PATCH v3 5/7] net/mlx5: separate TSO function in Tx data path Xueming Li
2018-03-05 14:51 ` [dpdk-dev] [PATCH v3 6/7] net/mlx5: support generic tunnel offloading Xueming Li
2018-03-05 14:51 ` [dpdk-dev] [PATCH v3 7/7] net/mlx5: allow max 192B TSO inline header length Xueming Li
2018-04-08 12:32 ` [dpdk-dev] [PATCH v4 0/4] support Tx generic tunnel checksum and TSO Xueming Li
2018-04-17 14:43 ` [dpdk-dev] [PATCH v5 0/2] " Xueming Li
2018-04-17 14:47 ` [dpdk-dev] [PATCH v5 1/2] ethdev: introduce generic IP/UDP " Xueming Li
2018-04-17 21:21 ` Thomas Monjalon
2018-04-17 14:49 ` [dpdk-dev] [PATCH v5 2/2] app/testpmd: testpmd support Tx generic tunnel offloads Xueming Li
2018-04-18 13:38 ` [dpdk-dev] [PATCH v6 0/2] support Tx generic tunnel checksum and TSO Xueming Li
2018-04-18 13:58 ` [dpdk-dev] [PATCH v6 1/2] ethdev: introduce generic IP/UDP " Xueming Li
2018-04-18 14:28 ` Thomas Monjalon
2018-04-18 16:45 ` Ananyev, Konstantin
2018-04-18 18:02 ` Thomas Monjalon
2018-04-23 9:55 ` Olivier Matz [this message]
2018-04-20 12:48 ` [dpdk-dev] [PATCH v7 0/2] support Tx generic " Xueming Li
2018-04-23 11:36 ` [dpdk-dev] [PATCH v8 " Xueming Li
2018-04-23 16:17 ` Ferruh Yigit
2018-04-23 11:36 ` [dpdk-dev] [PATCH v8 1/2] ethdev: introduce generic IP/UDP " Xueming Li
2018-04-23 11:49 ` Xueming Li
2018-04-23 11:36 ` [dpdk-dev] [PATCH v8 2/2] app/testpmd: testpmd support Tx generic tunnel offloads Xueming Li
2018-04-20 12:48 ` [dpdk-dev] [PATCH v7 1/2] ethdev: introduce generic IP/UDP tunnel checksum and TSO Xueming Li
2018-04-23 9:59 ` Olivier Matz
2018-04-20 12:48 ` [dpdk-dev] [PATCH v7 2/2] app/testpmd: testpmd support Tx generic tunnel offloads Xueming Li
2018-04-18 13:59 ` [dpdk-dev] [PATCH v6 " Xueming Li
2018-04-08 12:32 ` [dpdk-dev] [PATCH v4 1/4] ethdev: introduce generic IP/UDP tunnel checksum and TSO Xueming Li
2018-04-16 22:42 ` Thomas Monjalon
2018-04-17 7:53 ` Xueming(Steven) Li
2018-04-17 8:10 ` Thomas Monjalon
2018-04-08 12:32 ` [dpdk-dev] [PATCH v4 2/4] app/testpmd: testpmd support Tx generic tunnel offloads Xueming Li
2018-04-17 14:24 ` Iremonger, Bernard
2018-04-17 15:44 ` Xueming(Steven) Li
2018-04-08 12:32 ` [dpdk-dev] [PATCH v4 3/4] app/testpmd: add more GRE extension to csum engine Xueming Li
2018-04-16 22:45 ` Thomas Monjalon
2018-04-17 5:19 ` Xueming(Steven) Li
2018-04-08 12:32 ` [dpdk-dev] [PATCH v4 4/4] app/testpmd: introduce VXLAN GPE to csum forwarding engine Xueming Li
2018-04-16 22:46 ` Thomas Monjalon
2018-04-17 13:56 ` Iremonger, Bernard
2018-04-17 14:12 ` Xueming(Steven) Li
2018-01-09 14:11 ` [dpdk-dev] [PATCH 2/6] net/mlx5: allow max 192B WQE TSO inline header length Xueming Li
2018-01-09 14:11 ` [dpdk-dev] [PATCH 3/6] net/mlx5: add SWP PCI parameter for TX common tunnel offloads Xueming Li
2018-01-09 14:11 ` [dpdk-dev] [PATCH 4/6] ethdev: introduce " Xueming Li
2018-01-11 18:38 ` Ferruh Yigit
2018-01-16 17:10 ` Olivier Matz
2018-01-16 17:28 ` Xueming(Steven) Li
2018-01-16 19:06 ` Shahaf Shuler
2018-01-22 12:46 ` Olivier Matz
2018-01-22 20:06 ` Shahaf Shuler
2018-01-17 0:50 ` Yongseok Koh
2018-01-09 14:11 ` [dpdk-dev] [PATCH 5/6] net/mlx5: support " Xueming Li
2018-01-09 14:11 ` [dpdk-dev] [PATCH 6/6] app/testpmd: testpmd " Xueming Li
2018-01-16 3:09 ` Lu, Wenzhuo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180423095541.4wsjundovqouikcw@platinum \
--to=olivier.matz@6wind.com \
--cc=bernard.iremonger@intel.com \
--cc=dev@dpdk.org \
--cc=ferruh.yigit@intel.com \
--cc=jingjing.wu@intel.com \
--cc=konstantin.ananyev@intel.com \
--cc=shahafs@mellanox.com \
--cc=thomas@monjalon.net \
--cc=wenzhuo.lu@intel.com \
--cc=xuemingl@mellanox.com \
--cc=yskoh@mellanox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).