Hi, > -----Original Message----- > From: Maxime Coquelin <maxime.coque...@redhat.com> > Sent: Friday, January 6, 2023 5:34 PM > To: Wang, YuanX <yuanx.w...@intel.com>; dev@dpdk.org > Cc: Hu, Jiayu <jiayu...@intel.com> > Subject: Re: [RFC] net/vhost: support asynchronous data path > > Hi, > > On 1/6/23 10:08, Wang, YuanX wrote: > > Hi Maxime, > > > > Sorry about not being clear about the intentions. > > The patch is for a whitepaper, we use it for tests and we need to attach the > patch link. > > Thanks for the clarification. > > > Maybe I should set the patch state to superseded? > > I think setting it to rejected would be the appropriate state, as there are no > patch that supersedes it.
Ok, thanks for your advice. Regards, Yuan > > Thanks, > Maxime > > > Thanks, > > Yuan > > > >> -----Original Message----- > >> From: Maxime Coquelin <maxime.coque...@redhat.com> > >> Sent: Monday, January 2, 2023 6:59 PM > >> To: Wang, YuanX <yuanx.w...@intel.com>; dev@dpdk.org > >> Cc: Hu, Jiayu <jiayu...@intel.com> > >> Subject: Re: [RFC] net/vhost: support asynchronous data path > >> > >> Hi Yuan, > >> > >> On 12/16/22 03:00, Yuan Wang wrote: > >>> Vhost asynchronous data-path offloads packet copy from the CPU to > >>> the DMA engine. As a result, large packet copy can be accelerated by > >>> the DMA engine, and vhost can free CPU cycles for higher level functions. > >>> > >>> In this patch, we enable asynchronous data-path for vhostpmd. > >>> Asynchronous data path is enabled per tx/rx queue, and users need to > >>> specify the DMA device used by the tx/rx queue. Each tx/rx queue > >>> only supports to use one DMA device, but one DMA device can be > >>> shared > >> among > >>> multiple tx/rx queues of different vhost PMD ports. > >>> > >>> Two PMD parameters are added: > >>> - dmas: specify the used DMA device for a tx/rx queue. > >>> (Default: no queues enable asynchronous data path) > >>> - dma-ring-size: DMA ring size. > >>> (Default: 4096). > >>> > >>> Here is an example: > >>> --vdev > >> > 'eth_vhost0,iface=./s0,dmas=[txq0@0000:00.01.0;rxq0@0000:00.01.1],dma > >> - > >> ring-size=4096' > >>> > >>> Signed-off-by: Jiayu Hu <jiayu...@intel.com> > >>> Signed-off-by: Yuan Wang <yuanx.w...@intel.com> > >>> Signed-off-by: Wenwu Ma <wenwux...@intel.com> > >>> --- > >>> drivers/net/vhost/meson.build | 1 + > >>> drivers/net/vhost/rte_eth_vhost.c | 512 > >> ++++++++++++++++++++++++++++-- > >>> drivers/net/vhost/rte_eth_vhost.h | 15 + > >>> drivers/net/vhost/version.map | 7 + > >>> drivers/net/vhost/vhost_testpmd.c | 67 ++++ > >>> 5 files changed, 569 insertions(+), 33 deletions(-) > >>> create mode 100644 drivers/net/vhost/vhost_testpmd.c > >>> > >> > >> This RFC is identical to the v5 that you sent for last release, and > >> so the comments I made on it are still valid. > >> > >> Is this intentionally re-sent? > >> > >> Regards, > >> Maxime > >
