> -----Original Message----- > From: dev <dev-boun...@dpdk.org> On Behalf Of Chengchang Tang > Sent: Thursday, August 6, 2020 7:01 > To: dev@dpdk.org > Cc: linux...@huawei.com; Thomas Monjalon <tho...@monjalon.net>; > ferruh.yi...@intel.com; arybche...@solarflare.com; > step...@networkplumber.org > Subject: [dpdk-dev] [PATCH v2] doc: add new field to rxq info struct > > Struct rte_eth_rxq_info will be modified to include a new field, indicating > the > size of each buffer that could be used for hw to receive packets. Add this > field to rte_eth_rxq_info to expose relevant information to upper layer > users/application. > > For more details: > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmails. > dpdk.org%2Farchives%2Fdev%2F2020- > July%2F176135.html&data=02%7C01%7Cviacheslavo%40mellanox.com > %7Cdb0d8bcc221145a4a67508d839bd9f14%7Ca652971c7d2e4d9ba6a4d149 > 256f461b%7C0%7C0%7C637322833881598698&sdata=W2G3iEdepIjSlp > Wq4296k7cmXV1RhMnfl88TAjivWLc%3D&reserved=0 > > Signed-off-by: Chengchang Tang <tangchengch...@huawei.com> > Acked-by: Andrew Rybchenko <arybche...@solarflare.com> > --- > v2: > - Remove field name. > - Fix some spelling mistakes. > --- > doc/guides/rel_notes/deprecation.rst | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/doc/guides/rel_notes/deprecation.rst > b/doc/guides/rel_notes/deprecation.rst > index ea4cfa7..f08b5f9 100644 > --- a/doc/guides/rel_notes/deprecation.rst > +++ b/doc/guides/rel_notes/deprecation.rst > @@ -110,6 +110,15 @@ Deprecation Notices > break the ABI checks, that is why change is planned for 20.11. > The list of internal APIs are mainly ones listed in > ``rte_ethdev_driver.h``. > > +* ethdev: A new field will be added to the public data structure > + ``rte_eth_rxq_info`` to indicate the buffer size used in receiving > +packets > + for HW. When receive packets, HW DMA won't exceed this size. And it > +will > + affect the number of fragments in receiving packets when scatter is > enabled. > + So, add this field to ``rte_eth_rxq_info`` to expose relevant > +information to > + upper layer user/application. > + This change is planned for 20.11. For more details: > + > +https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmail > s > +.dpdk.org%2Farchives%2Fdev%2F2020- > July%2F176135.html&data=02%7C01%7 > +Cviacheslavo%40mellanox.com%7Cdb0d8bcc221145a4a67508d839bd9f14 > %7Ca65297 > +1c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C637322833881598698& > ;sdata=W2G3i > +EdepIjSlpWq4296k7cmXV1RhMnfl88TAjivWLc%3D&reserved=0 > + > * traffic manager: All traffic manager API's in ``rte_tm.h`` were mistakenly > made > ABI stable in the v19.11 release. The TM maintainer and other contributors > have > agreed to keep the TM APIs as experimental in expectation of additional > spec > -- > 2.7.4 We are going to introduce the more flexible format to descript the rx buffers with multiple segment lengths/pools. It might be worth to consider extending this info structure single field to array. I suppose it is the subject for further discussion (on RFC).
Acked-by: Viacheslav Ovsiienko <viachesl...@mellanox.com>
