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From: Thomas Monjalon <thomas@monjalon.net>
To: Xuan Ding <xuan.ding@intel.com>
Cc: mdr@ashroe.eu, andrew.rybchenko@oktetlabs.ru,
	ferruh.yigit@xilinx.com, viacheslavo@nvidia.com, dev@dpdk.org,
	stephen@networkplumber.org, mb@smartsharesystems.com,
	qi.z.zhang@intel.com, asekhar@marvell.com,
	pbhagavatula@marvell.com
Subject: Re: [PATCH v2] doc: announce header split deprecation
Date: Sat, 16 Jul 2022 23:28:36 +0200	[thread overview]
Message-ID: <44812611.fMDQidcC6G@thomas> (raw)
In-Reply-To: <20220715203055.64074-1-xuan.ding@intel.com>

15/07/2022 22:30, 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 per-port 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. After DPDK 22.11 LTS, the
> RTE_ETH_RX_OFFLOAD_BUFFER_SPLIT can still be used for per-queue Rx
> packet split offload, which is configured by rte_eth_rxseg_split.
> 
> Signed-off-by: Xuan Ding <xuan.ding@intel.com>
> Acked-by: Ray Kinsella <mdr@ashroe.eu>
> Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
> Acked-by: Ferruh Yigit <ferruh.yigit@xilinx.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>

This v2 is a lot better for the users to understand what happens.
Fixed the indent and moved few words:

* ethdev: Since no single PMD supports ``RTE_ETH_RX_OFFLOAD_HEADER_SPLIT``
  offload and the ``split_hdr_size`` field in structure ``rte_eth_rxmode``
  to enable per-port header split, they will be removed in DPDK 22.11.
  The per-queue Rx packet split offload ``RTE_ETH_RX_OFFLOAD_BUFFER_SPLIT``
  can still be used, and it is configured by ``rte_eth_rxseg_split``.

Applied, thanks.



      reply	other threads:[~2022-07-16 21:28 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-23 14:20 [PATCH] " xuan.ding
2022-05-24 14:58 ` Ray Kinsella
2022-07-12 11:43   ` Andrew Rybchenko
2022-07-13  9:49 ` Thomas Monjalon
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 [this message]

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