28/07/2023 17:08, Morten Brørup: > > From: Thomas Monjalon [mailto:tho...@monjalon.net] > > Sent: Friday, 28 July 2023 16.57 > > > > 04/07/2023 10:10, Feifei Wang: > > > To support mbufs recycle mode, announce the coming ABI changes > > > from DPDK 23.11. > > > > > > Signed-off-by: Feifei Wang <feifei.wa...@arm.com> > > > Reviewed-by: Ruifeng Wang <ruifeng.w...@arm.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 66431789b0..c7e1ffafb2 100644 > > > --- a/doc/guides/rel_notes/deprecation.rst > > > +++ b/doc/guides/rel_notes/deprecation.rst > > > @@ -118,6 +118,10 @@ Deprecation Notices > > > The legacy actions should be removed > > > once ``MODIFY_FIELD`` alternative is implemented in drivers. > > > > > > +* ethdev: The Ethernet device data structure ``struct rte_eth_dev`` and > > > + the fast-path ethdev flat array ``struct rte_eth_fp_ops`` will be > > > updated > > > + with new fields to support mbufs recycle mode from DPDK 23.11. > > Existing fields will also be moved around [1]: > > @@ -83,15 +90,17 @@ struct rte_eth_fp_ops { > * Rx fast-path functions and related data. > * 64-bit systems: occupies first 64B line > */ > + /** Rx queues data. */ > + struct rte_ethdev_qdata rxq; > /** PMD receive function. */ > eth_rx_burst_t rx_pkt_burst; > /** Get the number of used Rx descriptors. */ > eth_rx_queue_count_t rx_queue_count; > /** Check the status of a Rx descriptor. */ > eth_rx_descriptor_status_t rx_descriptor_status; > - /** Rx queues data. */ > - struct rte_ethdev_qdata rxq; > - uintptr_t reserved1[3]; > + /** Refill Rx descriptors with the recycling mbufs. */ > + eth_recycle_rx_descriptors_refill_t recycle_rx_descriptors_refill; > + uintptr_t reserved1[2]; > /**@}*/ > > /**@{*/ > @@ -99,15 +108,17 @@ struct rte_eth_fp_ops { > * Tx fast-path functions and related data. > * 64-bit systems: occupies second 64B line > */ > + /** Tx queues data. */ > + struct rte_ethdev_qdata txq; > /** PMD transmit function. */ > eth_tx_burst_t tx_pkt_burst; > /** PMD transmit prepare function. */ > eth_tx_prep_t tx_pkt_prepare; > /** Check the status of a Tx descriptor. */ > eth_tx_descriptor_status_t tx_descriptor_status; > - /** Tx queues data. */ > - struct rte_ethdev_qdata txq; > - uintptr_t reserved2[3]; > + /** Copy used mbufs from Tx mbuf ring into Rx. */ > + eth_recycle_tx_mbufs_reuse_t recycle_tx_mbufs_reuse; > + uintptr_t reserved2[2]; > /**@}*/
Removing existing fields should be announced explicitly.
