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* [PATCH] doc: announce header split deprecation
@ 2022-05-23 14:20 xuan.ding
  2022-05-24 14:58 ` Ray Kinsella
                   ` (2 more replies)
  0 siblings, 3 replies; 20+ messages in thread
From: xuan.ding @ 2022-05-23 14:20 UTC (permalink / raw)
  To: thomas, andrew.rybchenko, mdr; +Cc: stephen, mb, dev, Xuan Ding

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.
-- 
2.17.1


^ permalink raw reply	[flat|nested] 20+ messages in thread

end of thread, other threads:[~2022-07-16 21:28 UTC | newest]

Thread overview: 20+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-05-23 14:20 [PATCH] doc: announce header split deprecation 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

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