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From: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
To: Rongwei Liu <rongweil@nvidia.com>,
	matan@nvidia.com, viacheslavo@nvidia.com, orika@nvidia.com,
	thomas@monjalon.net, Aman Singh <aman.deep.singh@intel.com>,
	Yuying Zhang <yuying.zhang@intel.com>,
	Ferruh Yigit <ferruh.yigit@amd.com>,
	Olivier Matz <olivier.matz@6wind.com>
Cc: dev@dpdk.org, rasland@nvidia.com
Subject: Re: [PATCH v2 1/8] ethdev: add IPv6 routing extension header definition
Date: Fri, 20 Jan 2023 12:20:54 +0300	[thread overview]
Message-ID: <5da6632a-0976-dc1f-facb-f778c8aad8e6@oktetlabs.ru> (raw)
In-Reply-To: <20230119031139.621217-2-rongweil@nvidia.com>

On 1/19/23 06:11, Rongwei Liu wrote:
> Add IPv6 routing extension header definition and no
> TLV support for now.
> 
> At rte_flow layer, there are new items defined for matching
> type/nexthdr/segments_left field.
> 
> Add command line support for IPv6 routing extension header
> matching: type/nexthdr/segment_list.
> 
> Signed-off-by: Rongwei Liu <rongweil@nvidia.com>
> Acked-by: Ori Kam <orika@nvidia.com>

[snip]

> diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst
> index 3e6242803d..ae99036be0 100644
> --- a/doc/guides/prog_guide/rte_flow.rst
> +++ b/doc/guides/prog_guide/rte_flow.rst
> @@ -1544,6 +1544,15 @@ Matches Color Marker set by a Meter.
>   
>   - ``color``: Metering color marker.
>   
> +Item: ``IPV6_ROUTING_EXT``
> +^^^^^^^^^^^^^^^^^^^^^^^^^^
> +
> +Matches ipv6 routing extension header.

ipv6 -> IPv6

> +
> +- ``next_hdr``: Next layer header type.
> +- ``type``: IPv6 routing extension header type.
> +- ``segments_left``: How many IPv6 destination addresses carries on

Why are only 3 fields mentioned above?

> +
>   Actions
>   ~~~~~~~
>   
> diff --git a/doc/guides/rel_notes/release_23_03.rst b/doc/guides/rel_notes/release_23_03.rst
> index b8c5b68d6c..2a794d598e 100644
> --- a/doc/guides/rel_notes/release_23_03.rst
> +++ b/doc/guides/rel_notes/release_23_03.rst
> @@ -55,6 +55,11 @@ New Features
>        Also, make sure to start the actual text at the margin.
>        =======================================================
>   
> +* **Added rte_flow support for matching IPv6 routing extension header fields.**
> +
> +  Added ``ipv6_routing_ext`` items in rte_flow to match IPv6 routing extension
> +  header

Missing full stop above.

> +
>   
>   Removed Items
>   -------------
> @@ -84,6 +89,11 @@ API Changes
>      Also, make sure to start the actual text at the margin.
>      =======================================================
>   
> +* ethdev: added a new structure:
> +
> +    - IPv6 routing extension header ``rte_flow_item_ipv6_routing_ext`` and
> +      ``rte_ipv6_routing_ext``
> +

If I'm not mistaken, additions should not be here. It is not an
API change.

>   
>   ABI Changes
>   -----------
> diff --git a/lib/ethdev/rte_flow.c b/lib/ethdev/rte_flow.c
> index 7d0c24366c..4074b475c8 100644
> --- a/lib/ethdev/rte_flow.c
> +++ b/lib/ethdev/rte_flow.c
> @@ -76,6 +76,20 @@ rte_flow_item_flex_conv(void *buf, const void *data)
>   	return src->length;
>   }
>   
> +static size_t
> +rte_flow_item_ipv6_routing_ext_conv(void *buf, const void *data)
> +{
> +	struct rte_flow_item_ipv6_routing_ext *dst = buf;
> +	const struct rte_flow_item_ipv6_routing_ext *src = data;
> +	size_t len;
> +
> +	len = src->hdr.hdr_len ? src->hdr.hdr_len << 3 : src->hdr.segments_left << 4;

Compare hdr_len vs 0 explicitly.
Also I'd add parenthesis around ternary operator
values to make it simpler to understand.

> +	if (buf)

Please, compare vs NULL explicitly. May be 'dst' would be
better here?

> +		rte_memcpy((void *)((uintptr_t)(dst->hdr.segments)),
> +			   src->hdr.segments, len);
> +	return len;
> +}
> +
>   /** Generate flow_item[] entry. */
>   #define MK_FLOW_ITEM(t, s) \
>   	[RTE_FLOW_ITEM_TYPE_ ## t] = { \
> @@ -157,6 +171,8 @@ static const struct rte_flow_desc_data rte_flow_desc_item[] = {
>   	MK_FLOW_ITEM(L2TPV2, sizeof(struct rte_flow_item_l2tpv2)),
>   	MK_FLOW_ITEM(PPP, sizeof(struct rte_flow_item_ppp)),
>   	MK_FLOW_ITEM(METER_COLOR, sizeof(struct rte_flow_item_meter_color)),
> +	MK_FLOW_ITEM_FN(IPV6_ROUTING_EXT, sizeof(struct rte_flow_item_ipv6_routing_ext),
> +			rte_flow_item_ipv6_routing_ext_conv),
>   };
>   
>   /** Generate flow_action[] entry. */
> diff --git a/lib/ethdev/rte_flow.h b/lib/ethdev/rte_flow.h
> index b60987db4b..0120d3e7d2 100644
> --- a/lib/ethdev/rte_flow.h
> +++ b/lib/ethdev/rte_flow.h
> @@ -624,6 +624,13 @@ enum rte_flow_item_type {
>   	 * See struct rte_flow_item_meter_color.
>   	 */
>   	RTE_FLOW_ITEM_TYPE_METER_COLOR,
> +
> +	/**
> +	 * Matches the presence of IPv6 routing extension header.
> +	 *
> +	 * See struct rte_flow_item_ipv6_routing_ext.

@see

> +	 */
> +	RTE_FLOW_ITEM_TYPE_IPV6_ROUTING_EXT,
>   };
>   
>   /**
> @@ -873,6 +880,18 @@ struct rte_flow_item_ipv6 {
>   	uint32_t reserved:23;
>   };
>   
> +/**
> + * @warning
> + * @b EXPERIMENTAL: this structure may change without prior notice
> + *
> + * RTE_FLOW_ITEM_TYPE_IPV6_ROUTING_EXT.
> + *
> + * Matches an IPv6 routing extension header.
> + */
> +struct rte_flow_item_ipv6_routing_ext {
> +	struct rte_ipv6_routing_ext hdr;
> +};
> +

What about default mask?

>   /** Default mask for RTE_FLOW_ITEM_TYPE_IPV6. */
>   #ifndef __cplusplus
>   static const struct rte_flow_item_ipv6 rte_flow_item_ipv6_mask = {
> diff --git a/lib/net/rte_ip.h b/lib/net/rte_ip.h
> index 9c8e8206f0..158a2f83ce 100644
> --- a/lib/net/rte_ip.h
> +++ b/lib/net/rte_ip.h
> @@ -539,6 +539,27 @@ struct rte_ipv6_hdr {
>   	uint8_t  dst_addr[16];	/**< IP address of destination host(s). */
>   } __rte_packed;
>   
> +/**
> + * IPv6 Routing Extension Header
> + */
> +struct rte_ipv6_routing_ext {
> +	uint8_t next_hdr;			/**< Protocol, next header. */
> +	uint8_t hdr_len;			/**< Header length. */
> +	uint8_t type;				/**< Extension header type. */
> +	uint8_t segments_left;			/**< Valid segments number. */
> +	__extension__
> +	union {
> +		uint32_t flags;

rte_be32_t ?

> +		struct {
> +			uint8_t last_entry;	/**< The last_entry field of SRH */
> +			uint8_t flag;		/**< Packet flag. */
> +			uint16_t tag;		/**< Packet tag. */

rte_be16_t

> +		};
> +	};
> +	__extension__
> +	uint32_t segments[0];			/**< Each hop IPv6 address. */

rte_be32_t

> +} __rte_packed;
> +
>   /* IPv6 vtc_flow: IPv / TC / flow_label */
>   #define RTE_IPV6_HDR_FL_SHIFT 0
>   #define RTE_IPV6_HDR_TC_SHIFT 20


  reply	other threads:[~2023-01-20  9:20 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-21  8:42 [RFC 0/9] support ipv6 routing header matching Rongwei Liu
2022-12-21  8:42 ` [RFC 1/9] ethdev: add IPv6 routing extension header definition Rongwei Liu
2023-01-16 16:15   ` Ori Kam
2023-01-17  2:50     ` Rongwei Liu
2023-01-19  3:11   ` [PATCH v2 0/8] add IPv6 routing extension support Rongwei Liu
2023-01-19  3:11     ` [PATCH v2 1/8] ethdev: add IPv6 routing extension header definition Rongwei Liu
2023-01-20  9:20       ` Andrew Rybchenko [this message]
2023-01-30  3:46         ` Rongwei Liu
2023-01-30  3:59         ` [PATCH v3 0/8] add IPv6 routing extension support Rongwei Liu
2023-01-30  3:59           ` [PATCH v3 1/8] ethdev: add IPv6 routing extension header definition Rongwei Liu
2023-01-30 16:47             ` Stephen Hemminger
2023-01-31  2:03               ` Rongwei Liu
2023-01-31  2:27               ` Rongwei Liu
2023-01-31  2:55                 ` Stephen Hemminger
2023-01-31  3:20                   ` Rongwei Liu
2023-01-30 16:50             ` Stephen Hemminger
2023-01-31  2:05               ` Rongwei Liu
2023-01-31  3:02             ` Stephen Hemminger
2023-01-31  3:24               ` Rongwei Liu
2023-01-31  9:18                 ` Rongwei Liu
2023-01-31  9:42                   ` Thomas Monjalon
2023-01-31 11:42                     ` Ori Kam
2023-01-31  9:36               ` [PATCH v4 0/3] add IPv6 routing extension support Rongwei Liu
2023-01-31  9:36                 ` [PATCH v4 1/3] ethdev: add IPv6 routing extension header definition Rongwei Liu
2023-02-01  9:21                   ` Andrew Rybchenko
2023-02-01  9:27                     ` Rongwei Liu
2023-02-01  9:31                       ` Andrew Rybchenko
2023-02-01 11:35                         ` [PATCH v5 0/3] add IPv6 routing extension support Rongwei Liu
2023-02-01 11:35                           ` [PATCH v5 1/3] ethdev: add IPv6 routing extension header definition Rongwei Liu
2023-02-01 11:39                             ` Andrew Rybchenko
2023-02-01 13:44                             ` Thomas Monjalon
2023-02-02 10:00                               ` [PATCH v6 0/3] add IPv6 routing extension support Rongwei Liu
2023-02-02 10:00                                 ` [PATCH v6 1/3] ethdev: add IPv6 routing extension header definition Rongwei Liu
2023-02-02 10:00                                 ` [PATCH v6 2/3] ethdev: add modify IPv6 protocol field Rongwei Liu
2023-02-02 10:00                                 ` [PATCH v6 3/3] app/testpmd: add IPv6 routing extension header in raw encap Rongwei Liu
2023-02-03 18:36                                 ` [PATCH v6 0/3] add IPv6 routing extension support Ferruh Yigit
2023-02-01 11:35                           ` [PATCH v5 2/3] ethdev: add modify IPv6 protocol field Rongwei Liu
2023-02-01 11:39                             ` Andrew Rybchenko
2023-02-01 16:55                             ` Stephen Hemminger
2023-02-02  2:12                               ` Rongwei Liu
2023-02-01 11:35                           ` [PATCH v5 3/3] app/testpmd: add IPv6 routing extension header in raw encap Rongwei Liu
2023-01-31  9:36                 ` [PATCH v4 2/3] ethdev: add modify IPv6 protocol field Rongwei Liu
2023-02-01  9:14                   ` Andrew Rybchenko
2023-01-31  9:36                 ` [PATCH v4 3/3] app/testpmd: add IPv6 routing extension header in raw encap Rongwei Liu
2023-01-30  3:59           ` [PATCH v3 2/8] net/mlx5: adopt IPv6 routing extension prm definition Rongwei Liu
2023-01-30  3:59           ` [PATCH v3 3/8] net/mlx5/hws: Definer, add mlx5dr context to definer_conv_data Rongwei Liu
2023-01-30  3:59           ` [PATCH v3 4/8] net/mlx5/hws: add IPv6 routing extension matching support Rongwei Liu
2023-01-30  3:59           ` [PATCH v3 5/8] app/testpmd: add IPv6 routing extension header in raw encap Rongwei Liu
2023-01-30  3:59           ` [PATCH v3 6/8] ethdev: add modify IPv6 protocol field Rongwei Liu
2023-01-30  3:59           ` [PATCH v3 7/8] net/mlx5: add modify IPv6 protocol implementation Rongwei Liu
2023-01-30  3:59           ` [PATCH v3 8/8] doc/mlx5: add IPv6 routing extension matching docs Rongwei Liu
2023-01-19  3:11     ` [PATCH v2 2/8] net/mlx5: adopt IPv6 routing extension prm definition Rongwei Liu
2023-01-19  3:11     ` [PATCH v2 3/8] net/mlx5/hws: Definer, add mlx5dr context to definer_conv_data Rongwei Liu
2023-01-19  3:11     ` [PATCH v2 4/8] net/mlx5/hws: add IPv6 routing extension matching support Rongwei Liu
2023-01-19  3:11     ` [PATCH v2 5/8] app/testpmd: add IPv6 routing extension header in raw encap Rongwei Liu
2023-01-19  3:11     ` [PATCH v2 6/8] ethdev: add modify IPv6 protocol field Rongwei Liu
2023-01-19  3:11     ` [PATCH v2 7/8] net/mlx5: add modify IPv6 protocol implementation Rongwei Liu
2023-01-19  3:11     ` [PATCH v2 8/8] doc/mlx5: add IPv6 routing extension matching docs Rongwei Liu
2022-12-21  8:42 ` [RFC 2/9] app/testpmd: add IPv6 routing extension header support Rongwei Liu
2022-12-21  8:42 ` [RFC 3/9] net/mlx5: adopt new flex item definition Rongwei Liu
2022-12-21  8:42 ` [RFC 4/9] net/mlx5/hws: Definer, add mlx5dr context to definer_conv_data Rongwei Liu
2022-12-21  8:43 ` [RFC 5/9] net/mlx5/hws: add IPv6 routing extension matching support Rongwei Liu
2022-12-21  8:43 ` [RFC 6/9] app/testpmd: add IPv6 routing extension header in raw encap Rongwei Liu
2022-12-21  8:43 ` [RFC 7/9] ethdev: add modify IPv6 protocol field Rongwei Liu
2023-01-16 16:20   ` Ori Kam
2022-12-21  8:43 ` [RFC 8/9] app/testpmd: add modify IPv6 protocol command line Rongwei Liu
2022-12-21  8:43 ` [RFC 9/9] net/mlx5/hws: add modify IPv6 protocol implementation Rongwei Liu

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