Hi Bing, > -----Original Message----- > From: Bing Zhao <bi...@nvidia.com> > Sent: Thursday, October 8, 2020 11:52 AM > Subject: [PATCH v2 6/6] doc: update for two ports hairpin mode > > In the release notes, 2 ports hairpin mode feature is added. > > In rte flow part, one suggestion is added to mention that metadata > could be used to connect the hairpin RX and TX flows if the hairpin > is working in explicit TX flow rule mode. > > In the testpmd command line, the new parameter to set hairpin working > mode is described. > > Signed-off-by: Bing Zhao <bi...@nvidia.com> > --- > doc/guides/prog_guide/rte_flow.rst | 3 +++ > doc/guides/rel_notes/release_20_11.rst | 8 ++++++++ > doc/guides/testpmd_app_ug/run_app.rst | 8 ++++++++ > 3 files changed, 19 insertions(+) > > diff --git a/doc/guides/prog_guide/rte_flow.rst > b/doc/guides/prog_guide/rte_flow.rst > index 119b128..bb54d67 100644 > --- a/doc/guides/prog_guide/rte_flow.rst > +++ b/doc/guides/prog_guide/rte_flow.rst > @@ -2592,6 +2592,9 @@ set, unpredictable value will be seen depending on > driver implementation. For > loopback/hairpin packet, metadata set on Rx/Tx may or may not be > propagated to > the other path depending on HW capability. > > +In hairpin case with TX explicit flow mode, metadata could (not mandatory) be > +used to connect the RX and TX flows if it can be propagated from RX to TX > path. > + > .. _table_rte_flow_action_set_meta: > > .. table:: SET_META > diff --git a/doc/guides/rel_notes/release_20_11.rst > b/doc/guides/rel_notes/release_20_11.rst > index 0b2a370..05ceea0 100644 > --- a/doc/guides/rel_notes/release_20_11.rst > +++ b/doc/guides/rel_notes/release_20_11.rst > @@ -109,6 +109,10 @@ New Features > * Extern objects and functions can be plugged into the pipeline. > * Transaction-oriented table updates. > > +* **Updated the ethdev library to support hairpin between two ports.** > + > + New APIs are introduced to support binding / unbinding 2 ports hairpin. > + Hairpin TX part flow rules can be inserted explicitly. > > Removed Items > ------------- > @@ -240,6 +244,10 @@ ABI Changes > > * ``ethdev`` internal functions are marked with ``__rte_internal`` tag. > > + * ``struct rte_eth_hairpin_conf`` has two new members: > + > + * ``uint32_t tx_explicit:1;`` > + * ``uint32_t manual_bind:1;`` > > Known Issues > ------------ > diff --git a/doc/guides/testpmd_app_ug/run_app.rst > b/doc/guides/testpmd_app_ug/run_app.rst > index e2539f6..4e627c4 100644 > --- a/doc/guides/testpmd_app_ug/run_app.rst > +++ b/doc/guides/testpmd_app_ug/run_app.rst > @@ -497,3 +497,11 @@ The command line options are: > * ``--record-burst-stats`` > > Enable display of RX and TX burst stats. > + > +* ``--hairpin-mode=0xXX`` > + > + Set the hairpin port mode with bitmask, only valid when hairpin queues > number is set. > + bit 4 - explicit TX flow rule > + bit 1 - two hairpin ports paired > + bit 0 - two hairpin ports loop > + The default value is 0. Hairpin will use single port mode and implicit > TX flow > mode. > -- > 1.8.3.1
Acked-by: Ori Kam <or...@nvidia.com> Thanks, Ori
