> 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 <pbhagavat...@marvell.com> > Acked-by: Andrew Rybchenko <arybche...@solarflare.com> > Acked-by: Jerin Jacob <jer...@marvell.com> > Acked-by: Hemant Agrawal <hemant.agra...@nxp.com> > --- > v5 Changes: > - Reword for clarity. > > v4 Changes: > - Remove DEV_RX_OFFLOAD_PTYPE proposition and replace it with > rte_eth_dev_set_supported_ptypes (Konstantin). > > v3 Changes: > - DEV_RX_OFFLOAD_RSS -> DEV_RX_OFFLOAD_RSS_HASH (andrew). > > v2 Changes: > - Reword for clarity. > > doc/guides/rel_notes/deprecation.rst | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > > diff --git a/doc/guides/rel_notes/deprecation.rst > b/doc/guides/rel_notes/deprecation.rst > index 37b8592b6..b0391366c 100644 > --- a/doc/guides/rel_notes/deprecation.rst > +++ b/doc/guides/rel_notes/deprecation.rst > @@ -78,3 +78,27 @@ Deprecation Notices > to set new power environment if power environment was already initialized. > In this case the function will return -1 unless the environment is unset > first > (using ``rte_power_unset_env``). Other function usage scenarios will not > change. > + > +* 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. > --
Acked-by: Konstantin Ananyev <konstantin.anan...@intel.com> > 2.17.1