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From: "Sean Zhang (Networking SW)" <xiazhang@nvidia.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>,
	"NBU-Contact-Thomas Monjalon (EXTERNAL)" <thomas@monjalon.net>,
	Olivier Matz <olivier.matz@6wind.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>,
	Ori Kam <orika@nvidia.com>
Subject: RE: [v2 1/4] lib: add optional fields in GRE header
Date: Fri, 11 Feb 2022 10:23:20 +0000	[thread overview]
Message-ID: <DM8PR12MB53982FB9A0E26F56E48D195CA2309@DM8PR12MB5398.namprd12.prod.outlook.com> (raw)
In-Reply-To: <b322b9b3-eb9c-9d05-fc15-718ffe895879@intel.com>

Hi Ferruh,

> -----Original Message-----
> From: Ferruh Yigit <ferruh.yigit@intel.com>
> Sent: Friday, February 11, 2022 5:38 PM
> To: Sean Zhang (Networking SW) <xiazhang@nvidia.com>; NBU-Contact-
> Thomas Monjalon (EXTERNAL) <thomas@monjalon.net>; Olivier Matz
> <olivier.matz@6wind.com>
> Cc: dev@dpdk.org; Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>;
> Ori Kam <orika@nvidia.com>
> Subject: Re: [v2 1/4] lib: add optional fields in GRE header
> 
> External email: Use caution opening links or attachments
> 
> 
> On 2/11/2022 1:45 AM, Sean Zhang wrote:
> > There are optional fields in GRE header(checksum/key/sequence), this
> > patch adds definition of structures of the optional fields.
> >
> > Signed-off-by: Sean Zhang <xiazhang@nvidia.com>
> > ---
> >   lib/net/rte_gre.h | 22 ++++++++++++++++++++++
> >   1 file changed, 22 insertions(+)
> >
> > diff --git a/lib/net/rte_gre.h b/lib/net/rte_gre.h index
> > 5897756..6c6aef6 100644
> > --- a/lib/net/rte_gre.h
> > +++ b/lib/net/rte_gre.h
> > @@ -48,6 +48,28 @@ struct rte_gre_hdr {
> >       uint16_t proto;  /**< Protocol Type */
> >   } __rte_packed;
> >
> > +/**
> > + * Optional field checksum in GRE header  */ struct
> > +rte_gre_hdr_opt_checksum_rsvd {
> > +     rte_be16_t checksum;
> > +     rte_be16_t reserved1;
> 
> Can you please explain why this reserved field is added, I guess it i not part of
> the GRE spec, but added for mlx driver?
> 

Yes, the reserverd1 field is part of GRE spec, and the field go together with checksum field, so I add the reserverd1 field here.

You can refer to section 2.6 of https://datatracker.ietf.org/doc/rfc2784/ 

> Since these struts will be public, we can't update them later easily, so we
> should be careful on them.
> 
> > +} __rte_packed;
> > +
> > +/**
> > + * Optional field key in GRE header
> > + */
> > +struct rte_gre_hdr_opt_key {
> > +     rte_be32_t key;
> > +} __rte_packed;
> > +
> > +/**
> > + * Optional field sequence in GRE header  */ struct
> > +rte_gre_hdr_opt_sequence {
> > +     rte_be32_t sequence;
> > +} __rte_packed;
> > +
> >   #ifdef __cplusplus
> >   }
> >   #endif


  reply	other threads:[~2022-02-11 10:23 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-30  3:08 [RFC 0/3] Add support for GRE optional fields matching Sean Zhang
2021-12-30  3:08 ` [RFC 1/3] ethdev: support GRE optional fields Sean Zhang
2022-01-09 12:30   ` Ori Kam
2022-01-11  3:44     ` Sean Zhang (Networking SW)
2022-01-11  7:24       ` Ori Kam
2022-01-11  8:31         ` Sean Zhang (Networking SW)
2022-01-19  9:53   ` Ferruh Yigit
2022-01-19 10:01     ` Thomas Monjalon
2022-01-19 10:56       ` Ori Kam
2022-01-25  9:49         ` Sean Zhang (Networking SW)
2022-01-25 11:37           ` Ferruh Yigit
2022-01-25 13:06             ` Ori Kam
2022-01-25 14:29               ` Ferruh Yigit
2022-01-25 16:03                 ` Ori Kam
2022-01-26  8:44   ` [v1 0/4] Add support for GRE optional fields matching Sean Zhang
2022-01-26  8:44     ` [v1 1/4] lib: add optional fields in GRE header Sean Zhang
2022-02-01 12:47       ` Ori Kam
2022-01-26  8:44     ` [v1 2/4] ethdev: support GRE optional fields Sean Zhang
2022-02-01 12:57       ` Ori Kam
2022-02-04 15:15         ` Ferruh Yigit
2022-01-26  8:44     ` [v1 3/4] app/testpmd: add gre_option item command Sean Zhang
2022-02-01 12:57       ` Ori Kam
2022-01-26  8:44     ` [v1 4/4] net/mlx5: support matching optional fields of GRE Sean Zhang
2022-02-01 10:50       ` Ferruh Yigit
2022-02-01 11:13     ` [v1 0/4] Add support for GRE optional fields matching Ferruh Yigit
2022-02-11  1:45     ` [v2 " Sean Zhang
2022-02-11  1:45       ` [v2 1/4] lib: add optional fields in GRE header Sean Zhang
2022-02-11  9:38         ` Ferruh Yigit
2022-02-11 10:23           ` Sean Zhang (Networking SW) [this message]
2022-02-11 10:37             ` Ferruh Yigit
2022-02-11 10:12         ` Ori Kam
2022-02-11  1:45       ` [v2 2/4] ethdev: support GRE optional fields Sean Zhang
2022-02-11 10:10         ` Ori Kam
2022-02-11  1:45       ` [v2 3/4] app/testpmd: add gre_option item command Sean Zhang
2022-02-11 10:10         ` Ori Kam
2022-02-11  1:45       ` [v2 4/4] net/mlx5: support matching optional fields of GRE Sean Zhang
2022-02-17  6:27         ` [PATCH] " Sean Zhang
2022-02-17  8:33           ` Thomas Monjalon
2022-02-21  3:00             ` Sean Zhang (Networking SW)
2022-02-25 15:31               ` Thomas Monjalon
2022-02-26  0:57                 ` Sean Zhang (Networking SW)
2022-02-24 13:18           ` Raslan Darawsheh
2022-02-25  1:18             ` Sean Zhang (Networking SW)
2022-02-25  1:14           ` [v4] " Sean Zhang
2022-02-25 15:32             ` Thomas Monjalon
2022-02-25 17:55             ` Ferruh Yigit
2022-02-25 18:32               ` Thomas Monjalon
2022-02-11  9:36       ` [v2 0/4] Add support for GRE optional fields matching Ferruh Yigit
2022-02-11 10:33         ` Sean Zhang (Networking SW)
2022-02-11 10:38           ` Ferruh Yigit
2022-02-11 16:14       ` Ferruh Yigit
2021-12-30  3:08 ` [RFC 2/3] app/testpmd: add gre_option item command Sean Zhang
2021-12-30  3:08 ` [RFC 3/3] net/mlx5: support matching on optional fields of GRE Sean Zhang

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