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author | Pavan Nikhilesh <pbhagavatula@marvell.com> | 2019-08-09 15:25:59 +0530 |
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committer | Thomas Monjalon <thomas@monjalon.net> | 2019-08-10 23:07:12 +0200 |
commit | c5b2e78d11725d8cc468f2bf3069fd253c75370f (patch) | |
tree | b15c14f3ebacaf0e19e19e8ab7e1c5422bc0bbd5 | |
parent | d00c149791744a3f2f79210178557bee5e6278b1 (diff) | |
download | dpdk-c5b2e78d11725d8cc468f2bf3069fd253c75370f.zip dpdk-c5b2e78d11725d8cc468f2bf3069fd253c75370f.tar.gz dpdk-c5b2e78d11725d8cc468f2bf3069fd253c75370f.tar.xz |
doc: announce ethdev API changes in offload flags
Add new offload flags ``DEV_RX_OFFLOAD_RSS_HASH`` and
``DEV_RX_OFFLOAD_FLOW_MARK``.
Add new function ``rte_eth_dev_set_supported_ptypes`` to allow application
to set specific ptypes to be updated in ``rte_mbuf::packet_type``
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
-rw-r--r-- | doc/guides/rel_notes/deprecation.rst | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst index b08c78e..c0ee26b 100644 --- a/doc/guides/rel_notes/deprecation.rst +++ b/doc/guides/rel_notes/deprecation.rst @@ -98,6 +98,30 @@ Deprecation Notices - ``rte_eth_macaddr_get`` - ``rte_eth_dev_owner_delete`` +* ethdev: New offload flags ``DEV_RX_OFFLOAD_RSS_HASH`` and + ``DEV_RX_OFFLOAD_FLOW_MARK`` will be added in 19.11. + This will allow application to enable or disable PMDs from updating + ``rte_mbuf::hash::rss`` and ``rte_mbuf::hash::fdir`` respectively. + This scheme will allow PMDs to avoid writes to ``rte_mbuf`` fields on Rx and + thereby improve Rx performance if application wishes do so. + In 19.11 PMDs will still update the fields even when the offloads are not + enabled. + +* ethdev: New function ``rte_eth_dev_set_supported_ptypes`` will be added in + 19.11. + This will allow application to request PMD to set specific ptypes defined + through ``rte_eth_dev_set_supported_ptypes`` in ``rte_mbuf::packet_type``. + If application doesn't want any ptype information it can call + ``rte_eth_dev_set_supported_ptypes(ethdev_id, RTE_PTYPE_UNKNOWN)`` and PMD + will set ``rte_mbuf::packet_type`` to ``0``. + If application doesn't call ``rte_eth_dev_set_supported_ptypes`` PMD can + return ``rte_mbuf::packet_type`` with ``rte_eth_dev_get_supported_ptypes``. + If application is interested only in L2/L3 layer, it can inform the PMD + to update ``rte_mbuf::packet_type`` with L2/L3 ptype by calling + ``rte_eth_dev_set_supported_ptypes(ethdev_id, RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK)``. + This scheme will allow PMDs to avoid lookup to internal ptype table on Rx and + thereby improve Rx performance if application wishes do so. + * cryptodev: support for using IV with all sizes is added, J0 still can be used but only when IV length in following structs ``rte_crypto_auth_xform``, ``rte_crypto_aead_xform`` is set to zero. When IV length is greater or equal |