From: Thomas Monjalon <thomas@monjalon.net>
To: xuan.ding@intel.com
Cc: andrew.rybchenko@oktetlabs.ru, mdr@ashroe.eu, dev@dpdk.org,
stephen@networkplumber.org, mb@smartsharesystems.com,
dev@dpdk.org
Subject: Re: [PATCH] doc: announce header split deprecation
Date: Wed, 13 Jul 2022 11:49:51 +0200 [thread overview]
Message-ID: <11233520.IZOipudI63@thomas> (raw)
In-Reply-To: <20220523142016.44451-1-xuan.ding@intel.com>
23/05/2022 16:20, xuan.ding@intel.com:
> From: Xuan Ding <xuan.ding@intel.com>
>
> RTE_ETH_RX_OFFLOAD_HEADER_SPLIT offload was introduced some time ago to
> substitute bit-field header_split in struct rte_eth_rxmode. It allows
> to enable header split offload with the header size controlled using
> split_hdr_size in the same structure.
>
> Right now, no single PMD actually supports RTE_ETH_RX_OFFLOAD_HEADER_SPLIT
> with above definition. Many examples and test apps initialize the field
> to 0 explicitly. The most of drivers simply ignore split_hdr_size since
> the offload is not advertised, but some double-check that its value is 0.
>
> So the RTE_ETH_RX_OFFLOAD_HEADER_SPLIT and split_header_size field
> will be removed in DPDK 22.11.
>
> Signed-off-by: Xuan Ding <xuan.ding@intel.com>
> ---
> doc/guides/rel_notes/deprecation.rst | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
> index 4e5b23c53d..b8114f29ed 100644
> --- a/doc/guides/rel_notes/deprecation.rst
> +++ b/doc/guides/rel_notes/deprecation.rst
> @@ -125,3 +125,7 @@ Deprecation Notices
> applications should be updated to use the ``dmadev`` library instead,
> with the underlying HW-functionality being provided by the ``ioat`` or
> ``idxd`` dma drivers
> +
> +* ethdev: After bit-field header split was removed, the ``RTE_ETH_RX_OFFLOAD_HEADER_SPLIT``
> +offload and the ``split_hdr_size`` field in structure ``rte_eth_rxmode`` to enable header
> +split offload are not supported in any PMDs. They will be removed in DPDK 22.11.
It would have been good to talk about rte_eth_rxseg_split
which is similar and configured per-queue.
next prev parent reply other threads:[~2022-07-13 9:49 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-23 14:20 xuan.ding
2022-05-24 14:58 ` Ray Kinsella
2022-07-12 11:43 ` Andrew Rybchenko
2022-07-13 9:49 ` Thomas Monjalon [this message]
2022-07-14 5:50 ` Ding, Xuan
2022-07-14 8:08 ` Thomas Monjalon
2022-07-14 12:54 ` Ding, Xuan
2022-07-14 13:25 ` Thomas Monjalon
2022-07-14 14:07 ` Ding, Xuan
2022-07-14 15:58 ` Ferruh Yigit
2022-07-14 16:03 ` Ferruh Yigit
2022-07-15 8:52 ` Ding, Xuan
2022-07-14 16:56 ` Slava Ovsiienko
2022-07-15 8:28 ` Ding, Xuan
2022-07-15 11:34 ` Ferruh Yigit
2022-07-15 12:43 ` Ding, Xuan
2022-07-15 12:13 ` Andrew Rybchenko
2022-07-15 12:44 ` Ding, Xuan
2022-07-15 20:30 ` [PATCH v2] " xuan.ding
2022-07-16 21:28 ` Thomas Monjalon
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