[PATCH v2 1/3] ethdev: add ICMPv6 ID and sequence

Leo Xu (Networking SW) yongquanx at nvidia.com
Tue Jan 31 04:58:22 CET 2023


Hi,

PSB

> -----Original Message-----
> From: Ferruh Yigit <ferruh.yigit at amd.com>
> Sent: Thursday, January 26, 2023 6:45 PM
> To: Leo Xu (Networking SW) <yongquanx at nvidia.com>; dev at dpdk.org
> Cc: Bing Zhao <bingz at nvidia.com>; Ori Kam <orika at nvidia.com>; Aman Singh
> <aman.deep.singh at intel.com>; Yuying Zhang <yuying.zhang at intel.com>;
> NBU-Contact-Thomas Monjalon (EXTERNAL) <thomas at monjalon.net>; Andrew
> Rybchenko <andrew.rybchenko at oktetlabs.ru>; Olivier Matz
> <olivier.matz at 6wind.com>
> Subject: Re: [PATCH v2 1/3] ethdev: add ICMPv6 ID and sequence
> 
> External email: Use caution opening links or attachments
> 
> 
> On 12/20/2022 7:44 AM, Leo Xu wrote:
> > This patch adds API support for ICMPv6 ID and sequence.
> > 1: Add two new pattern item types for ICMPv6 echo request and reply:
> >   RTE_FLOW_ITEM_TYPE_ICMP6_ECHO_REQUEST
> >   RTE_FLOW_ITEM_TYPE_ICMP6_ECHO_REPLY
> >
> > 2: Add new header file rte_icmp6.h for ICMPv6 packet definitions.
> > 3: Enhance testpmd flow pattern to support ICMPv6 identifier and sequence.
> >
> >   Example of ICMPv6 echo pattern in testpmd command:
> >
> >   pattern eth / ipv6 / icmp6_echo_request / end
> >   pattern eth / ipv6 / icmp6_echo_reply / end
> >   pattern eth / ipv6 / icmp6_echo_request ident is 20 seq is 30 / end
> >
> > Signed-off-by: Leo Xu <yongquanx at nvidia.com>
> > Signed-off-by: Bing Zhao <bingz at nvidia.com>
> > ---
> >  app/test-pmd/cmdline_flow.c                 | 70 +++++++++++++++++++++
> >  doc/guides/prog_guide/rte_flow.rst          | 14 +++++
> >  doc/guides/rel_notes/release_23_03.rst      |  4 ++
> >  doc/guides/testpmd_app_ug/testpmd_funcs.rst | 10 +++
> >  lib/ethdev/rte_flow.c                       |  4 ++
> >  lib/ethdev/rte_flow.h                       | 25 ++++++++
> >  lib/net/meson.build                         |  1 +
> >  lib/net/rte_icmp6.h                         | 48 ++++++++++++++
> >  8 files changed, 176 insertions(+)
> >  create mode 100644 lib/net/rte_icmp6.h
> 
> Please update .mailmap with in this patch.

Thanks, will update it in next patch.

> 
> >
> > diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
> > index 88108498e0..7dc1528899 100644
> > --- a/app/test-pmd/cmdline_flow.c
> > +++ b/app/test-pmd/cmdline_flow.c
> > @@ -360,6 +360,12 @@ enum index {
> >       ITEM_ICMP6,
> >       ITEM_ICMP6_TYPE,
> >       ITEM_ICMP6_CODE,
> > +     ITEM_ICMP6_ECHO_REQUEST,
> > +     ITEM_ICMP6_ECHO_REQUEST_ID,
> > +     ITEM_ICMP6_ECHO_REQUEST_SEQ,
> > +     ITEM_ICMP6_ECHO_REPLY,
> > +     ITEM_ICMP6_ECHO_REPLY_ID,
> > +     ITEM_ICMP6_ECHO_REPLY_SEQ,
> >       ITEM_ICMP6_ND_NS,
> >       ITEM_ICMP6_ND_NS_TARGET_ADDR,
> >       ITEM_ICMP6_ND_NA,
> > @@ -1327,6 +1333,8 @@ static const enum index next_item[] = {
> >       ITEM_IPV6_EXT,
> >       ITEM_IPV6_FRAG_EXT,
> >       ITEM_ICMP6,
> > +     ITEM_ICMP6_ECHO_REQUEST,
> > +     ITEM_ICMP6_ECHO_REPLY,
> >       ITEM_ICMP6_ND_NS,
> >       ITEM_ICMP6_ND_NA,
> >       ITEM_ICMP6_ND_OPT,
> > @@ -1575,6 +1583,20 @@ static const enum index item_icmp6[] = {
> >       ZERO,
> >  };
> >
> > +static const enum index item_icmp6_echo_request[] = {
> > +     ITEM_ICMP6_ECHO_REQUEST_ID,
> > +     ITEM_ICMP6_ECHO_REQUEST_SEQ,
> > +     ITEM_NEXT,
> > +     ZERO,
> > +};
> > +
> > +static const enum index item_icmp6_echo_reply[] = {
> > +     ITEM_ICMP6_ECHO_REPLY_ID,
> > +     ITEM_ICMP6_ECHO_REPLY_SEQ,
> > +     ITEM_NEXT,
> > +     ZERO,
> > +};
> > +
> >  static const enum index item_icmp6_nd_ns[] = {
> >       ITEM_ICMP6_ND_NS_TARGET_ADDR,
> >       ITEM_NEXT,
> > @@ -4323,6 +4345,54 @@ static const struct token token_list[] = {
> >               .args = ARGS(ARGS_ENTRY_HTON(struct rte_flow_item_icmp6,
> >                                            code)),
> >       },
> > +     [ITEM_ICMP6_ECHO_REQUEST] = {
> > +             .name = "icmp6_echo_request",
> > +             .help = "match ICMPv6 echo request",
> > +             .priv = PRIV_ITEM(ICMP6_ECHO_REQUEST,
> > +                               sizeof(struct rte_flow_item_icmp6_echo)),
> > +             .next = NEXT(item_icmp6_echo_request),
> > +             .call = parse_vc,
> > +     },
> > +     [ITEM_ICMP6_ECHO_REQUEST_ID] = {
> > +             .name = "ident",
> > +             .help = "ICMPv6 echo request identifier",
> > +             .next = NEXT(item_icmp6_echo_request,
> NEXT_ENTRY(COMMON_UNSIGNED),
> > +                          item_param),
> > +             .args = ARGS(ARGS_ENTRY_HTON(struct rte_flow_item_icmp6_echo,
> > +                                          echo.identifier)),
> > +     },
> > +     [ITEM_ICMP6_ECHO_REQUEST_SEQ] = {
> > +             .name = "seq",
> > +             .help = "ICMPv6 echo request sequence",
> > +             .next = NEXT(item_icmp6_echo_request,
> NEXT_ENTRY(COMMON_UNSIGNED),
> > +                          item_param),
> > +             .args = ARGS(ARGS_ENTRY_HTON(struct rte_flow_item_icmp6_echo,
> > +                                          echo.sequence)),
> > +     },
> > +     [ITEM_ICMP6_ECHO_REPLY] = {
> > +             .name = "icmp6_echo_reply",
> > +             .help = "match ICMPv6 echo reply",
> > +             .priv = PRIV_ITEM(ICMP6_ECHO_REPLY,
> > +                               sizeof(struct rte_flow_item_icmp6_echo)),
> > +             .next = NEXT(item_icmp6_echo_reply),
> > +             .call = parse_vc,
> > +     },
> > +     [ITEM_ICMP6_ECHO_REPLY_ID] = {
> > +             .name = "ident",
> > +             .help = "ICMPv6 echo reply identifier",
> > +             .next = NEXT(item_icmp6_echo_reply,
> NEXT_ENTRY(COMMON_UNSIGNED),
> > +                          item_param),
> > +             .args = ARGS(ARGS_ENTRY_HTON(struct rte_flow_item_icmp6_echo,
> > +                                          echo.identifier)),
> > +     },
> > +     [ITEM_ICMP6_ECHO_REPLY_SEQ] = {
> > +             .name = "seq",
> > +             .help = "ICMPv6 echo reply sequence",
> > +             .next = NEXT(item_icmp6_echo_reply,
> NEXT_ENTRY(COMMON_UNSIGNED),
> > +                          item_param),
> > +             .args = ARGS(ARGS_ENTRY_HTON(struct rte_flow_item_icmp6_echo,
> > +                                          echo.sequence)),
> > +     },
> >       [ITEM_ICMP6_ND_NS] = {
> >               .name = "icmp6_nd_ns",
> >               .help = "match ICMPv6 neighbor discovery solicitation",
> > diff --git a/doc/guides/prog_guide/rte_flow.rst
> > b/doc/guides/prog_guide/rte_flow.rst
> > index 3e6242803d..59932e82a6 100644
> > --- a/doc/guides/prog_guide/rte_flow.rst
> > +++ b/doc/guides/prog_guide/rte_flow.rst
> > @@ -1165,6 +1165,20 @@ Matches any ICMPv6 header.
> >  - ``checksum``: ICMPv6 checksum.
> >  - Default ``mask`` matches ``type`` and ``code``.
> >
> > +Item: ``ICMP6_ECHO_REQUEST``
> > +^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > +
> > +Matches an ICMPv6 echo request.
> > +
> > +- ``echo``: ICMP6 echo definition (``rte_icmp6.h``).
> > +
> > +Item: ``ICMP6_ECHO_REPLY``
> > +^^^^^^^^^^^^^^^^^^^^^^^^^^
> > +
> > +Matches an ICMPv6 echo reply.
> > +
> > +- ``echo``: ICMP6 echo definition (``rte_icmp6.h``).
> > +
> >  Item: ``ICMP6_ND_NS``
> >  ^^^^^^^^^^^^^^^^^^^^^
> >
> > diff --git a/doc/guides/rel_notes/release_23_03.rst
> > b/doc/guides/rel_notes/release_23_03.rst
> > index b8c5b68d6c..5af9c43dd9 100644
> > --- a/doc/guides/rel_notes/release_23_03.rst
> > +++ b/doc/guides/rel_notes/release_23_03.rst
> > @@ -55,6 +55,10 @@ New Features
> >       Also, make sure to start the actual text at the margin.
> >       =======================================================
> >
> > +* **Added rte_flow support for matching ICMPv6 ID and sequence
> > +fields.**
> > +
> > +  Added ``icmp6_echo`` item in rte_flow to support ID and sequence
> > + matching in ICMPv6 echo request/reply packets.
> >
> 
> Should keep two empty lines before next section.
Thanks for that catch, will fix it.

> 
> >  Removed Items
> >  -------------
> > diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> > b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> > index 0037506a79..f497bba26d 100644
> > --- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> > +++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> > @@ -3622,6 +3622,16 @@ This section lists supported pattern items and
> their attributes, if any.
> >    - ``type {unsigned}``: ICMPv6 type.
> >    - ``code {unsigned}``: ICMPv6 code.
> >
> > +- ``icmp6_echo_request``: match ICMPv6 echo request.
> > +
> > +  - ``ident {unsigned}``: ICMPv6 echo request identifier.
> > +  - ``seq {unsigned}``: ICMPv6 echo request sequence number.
> > +
> > +- ``icmp6_echo_reply``: match ICMPv6 echo reply.
> > +
> > +  - ``ident {unsigned}``: ICMPv6 echo reply identifier.
> > +  - ``seq {unsigned}``: ICMPv6 echo reply sequence number.
> > +
> >  - ``icmp6_nd_ns``: match ICMPv6 neighbor discovery solicitation.
> >
> >    - ``target_addr {ipv6 address}``: target address.
> > diff --git a/lib/ethdev/rte_flow.c b/lib/ethdev/rte_flow.c index
> > 7d0c24366c..39cd4f9817 100644
> > --- a/lib/ethdev/rte_flow.c
> > +++ b/lib/ethdev/rte_flow.c
> > @@ -123,6 +123,10 @@ static const struct rte_flow_desc_data
> rte_flow_desc_item[] = {
> >       MK_FLOW_ITEM(IPV6_EXT, sizeof(struct rte_flow_item_ipv6_ext)),
> >       MK_FLOW_ITEM(IPV6_FRAG_EXT, sizeof(struct
> rte_flow_item_ipv6_frag_ext)),
> >       MK_FLOW_ITEM(ICMP6, sizeof(struct rte_flow_item_icmp6)),
> > +     MK_FLOW_ITEM(ICMP6_ECHO_REQUEST,
> > +                  sizeof(struct rte_flow_item_icmp6_echo)),
> > +     MK_FLOW_ITEM(ICMP6_ECHO_REPLY,
> > +                  sizeof(struct rte_flow_item_icmp6_echo)),
> 
> Syntax, please merge lines, to make it more readable.

Thanks for that catch, will fix it.

> 
> >       MK_FLOW_ITEM(ICMP6_ND_NS, sizeof(struct
> rte_flow_item_icmp6_nd_ns)),
> >       MK_FLOW_ITEM(ICMP6_ND_NA, sizeof(struct
> rte_flow_item_icmp6_nd_na)),
> >       MK_FLOW_ITEM(ICMP6_ND_OPT, sizeof(struct
> > rte_flow_item_icmp6_nd_opt)), diff --git a/lib/ethdev/rte_flow.h
> > b/lib/ethdev/rte_flow.h index b60987db4b..72695aca8a 100644
> > --- a/lib/ethdev/rte_flow.h
> > +++ b/lib/ethdev/rte_flow.h
> > @@ -21,6 +21,7 @@
> >  #include <rte_common.h>
> >  #include <rte_ether.h>
> >  #include <rte_icmp.h>
> > +#include <rte_icmp6.h>
> >  #include <rte_ip.h>
> >  #include <rte_sctp.h>
> >  #include <rte_tcp.h>
> > @@ -624,6 +625,20 @@ enum rte_flow_item_type {
> >        * See struct rte_flow_item_meter_color.
> >        */
> >       RTE_FLOW_ITEM_TYPE_METER_COLOR,
> > +
> > +     /**
> > +      * Matches an ICMPv6 echo request.
> > +      *
> > +      * See struct rte_flow_item_icmp6_echo.
> > +      */
> > +     RTE_FLOW_ITEM_TYPE_ICMP6_ECHO_REQUEST,
> > +
> > +     /**
> > +      * Matches an ICMPv6 echo reply.
> > +      *
> > +      * See struct rte_flow_item_icmp6_echo.
> > +      */
> > +     RTE_FLOW_ITEM_TYPE_ICMP6_ECHO_REPLY,
> >  };
> >
> >  /**
> > @@ -1303,6 +1318,16 @@ static const struct rte_flow_item_icmp6
> > rte_flow_item_icmp6_mask = {  };  #endif
> >
> > +/**
> > + * RTE_FLOW_ITEM_TYPE_ICMP6_ECHO_REQUEST
> > + * RTE_FLOW_ITEM_TYPE_ICMP6_ECHO_REPLY
> > + *
> > + * Matches an ICMPv6 echo request or reply.
> > + */
> > +struct rte_flow_item_icmp6_echo {
> > +     struct rte_icmp6_echo echo;
> > +};
> > +
> >  /**
> >   * RTE_FLOW_ITEM_TYPE_ICMP6_ND_NS
> >   *
> > diff --git a/lib/net/meson.build b/lib/net/meson.build index
> > 379d161ee0..ce3ca67bdc 100644
> > --- a/lib/net/meson.build
> > +++ b/lib/net/meson.build
> > @@ -22,6 +22,7 @@ headers = files(
> >          'rte_geneve.h',
> >          'rte_l2tpv2.h',
> >          'rte_ppp.h',
> > +        'rte_icmp6.h',
> 
> Can you please move just below rte_icmp.h to group them.

Thanks, will merge the rte_icmp6.h into rte_icmp.h. Then, there will be no rte_icmp6.h file.

> 
> >  )
> >
> >  sources = files(
> > diff --git a/lib/net/rte_icmp6.h b/lib/net/rte_icmp6.h new file mode
> > 100644 index 0000000000..bf6956d7c9
> > --- /dev/null
> > +++ b/lib/net/rte_icmp6.h
> > @@ -0,0 +1,48 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright (c) 2022 NVIDIA Corporation & Affiliates
> 
> 2023?

Thanks, will update it.

> 
> > + */
> > +
> > +#ifndef _RTE_ICMP6_H_
> > +#define _RTE_ICMP6_H_
> > +
> > +/**
> > + * @file
> > + *
> > + * ICMP6-related defines
> > + */
> > +
> > +#include <stdint.h>
> > +
> > +#include <rte_byteorder.h>
> > +
> > +#ifdef __cplusplus
> > +extern "C" {
> > +#endif
> > +
> > +/**
> > + * ICMP6 header
> > + */
> > +struct rte_icmp6_hdr {
> > +     uint8_t type;
> > +     uint8_t code;
> > +     rte_be16_t checksum;
> > +} __rte_packed;
> > +
> > +/**
> > + * ICMP6 echo
> > + */
> > +struct rte_icmp6_echo {
> > +     struct rte_icmp6_hdr hdr;
> > +     rte_be16_t identifier;
> > +     rte_be16_t sequence;
> > +} __rte_packed;
> > +
> > +/* ICMP6 packet types */
> > +#define RTE_ICMP6_ECHO_REQUEST 128
> > +#define RTE_ICMP6_ECHO_REPLY   129
> > +
> > +#ifdef __cplusplus
> > +}
> > +#endif
> > +
> > +#endif /* RTE_ICMP6_H_ */



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