[dpdk-dev] [PATCH] eventdev: flag to identify same destined packets enqueue

Rao, Nikhil nikhil.rao at intel.com
Thu Oct 3 08:12:49 CEST 2019



> -----Original Message-----
> From: Jerin Jacob [mailto:jerinjacobk at gmail.com]
> Sent: Wednesday, October 2, 2019 1:24 PM
> To: Hemant Agrawal <hemant.agrawal at nxp.com>
> Cc: Nipun Gupta <nipun.gupta at nxp.com>; Jerin Jacob <jerinj at marvell.com>;
> dpdk-dev <dev at dpdk.org>; Pavan Nikhilesh <pbhagavatula at marvell.com>;
> Sunil Kumar Kori <skori at marvell.com>; Richardson, Bruce
> <bruce.richardson at intel.com>; Kovacevic, Marko
> <marko.kovacevic at intel.com>; Ori Kam <orika at mellanox.com>; Nicolau, Radu
> <radu.nicolau at intel.com>; Kantecki, Tomasz <tomasz.kantecki at intel.com>;
> Van Haaren, Harry <harry.van.haaren at intel.com>; Rao, Nikhil
> <nikhil.rao at intel.com>
> Subject: Re: [dpdk-dev] [PATCH] eventdev: flag to identify same destined
> packets enqueue
> 
> On Wed, Oct 2, 2019 at 8:38 AM Hemant Agrawal
> <hemant.agrawal at nxp.com> wrote:
> >
> > Hi Jerin,
> 
> Hi Hemant,
> 
> 
> > > > I understand your concern that this shall not be valid on a general cases.
> > > >
> > > > There are certain use-case (NXP internal) of DPDK event which have
> > > > separate event ports/cores dedicated for certain tasks - and can
> > > > use the burst functionality for performance according to the event
> > > > ports which are used. Not having this at runtime will limit the
> > > > flexibility for such
> > > applications.
> > >
> > > If it is specific to NXP internal use case then no more comments on
> > > dynamic vs static.
> > >
> > > @ Nikhil Rao any comments.
Hi Jerin, Hemant,

Looks like we are trying to give a generic wrapper for the NXP internal use case, do we really need to solve that problem ? 


> > >
> > > One option could be to incorporate NXP internal use case will be
> > > introducing a new API, parallel to rte_event_eth_tx_adapter_enqueue
> > > as
> > > rte_event_eth_tx_adapter_enqueue_same_dest()
> > > or something.
> > >
> > > Two advantage:
> > > # Not a major ABI breakage. Only need to add new fast-path function
> > > in rte_eventdev.
> > > # Even though we add 'zero' in API all the time, the Compiler
> > > prologue needs to push to stack or move the value to argument
> > > register as there is function pointer indirection. so new API will
> > > have zero performance impact for normal cases.
> > >
> > > Not sure about minor ABI breakage in rte_eventdev(adding a new
> > > fastpath function). If everyone is OK as the exception for 19.11
> > > then we can introduce a new API.
> >
> > [Hemant] There are already too many APIs and mode in eventdev. My
> suggestion is to minimize the new APIs. Else writing generic applications will be
> really difficult and it will not be easy to adapt by the application developers.
> > In this particular case, it is better for NXP to go with direct eth enque mode
> rather than TX adapter. Note that crypto adapter already provide that mode.
> However we are trying to adjust so that applications do not become complex.
> 
> Why? If you think direct queue model as use case if you might as well write
> "ethdev" driver and internally use atomic schedule type.
> 
> 
> > In the existing code also we have two modes in the application to send the
> packets out - one is 'rte_event_enqueue_burst' and other is
> 'rte_event_eth_tx_adapter_enqueue'.
> > It is still cumbersome for the application to maintain separate modes. This
> increases when crypto/timer is also being used in event mode.
> 
> I think, we have two things here
> a) specialized API for specific work like
> rte_event_enqueue_new_burst() or rte_event_enqueue_forward_burst() vs
> generic rte_event_enqueue_burst().
> I think, that does not NOT any harm as the application can use optimized
> routine if required(no separate code path case)
> 
> b) different code path
> I agree, this is something I don't like and we would like to avoid.
> But this specific case, We took the comprise to avoid any performance impact
> for SW or HW model.
> It is a public discussion and it is here
> 
> http://patches.dpdk.org/patch/40426/
> 
> >
> > Why do we not used the 'rte_event->event_type' for TX as well, and
> 'rte_event_enqueue_burst', API to internally (in respective event driver) send
> the packet to the respective eth/crypto/timer Tx function? It makes more sense
> to have a common framework to send packets, rather than having multiple
> API's?
> 
> If we make rte_event_enqueue_burst() to send the packet then:
> - HW eventdev driver + External PCI network card use case won't work as you
> are overriding event driver enqueue which has no clue on the external PCI
> network card vs integrated network controller.
> - Additional switch cases rte_event_enqueue_burst() in generic function aka
> performance impact.
> - There are multiple SW eventdev drivers, whose generic enqueue() function
> can not be changed to handle Tx adapter enqueue + add new switch case
> - Both SW and HW can use rte_event_eth_tx_adapter_enqueue() to send the
> packet to have unified fast path. i.e The callback can be attached to SW tx
> adapter or HW routine to send the packet.


> But I am not able to recollect, Why Nikhil would like to use the separate
> functions. Nikhil could you remind us why
> rte_event_eth_tx_adapter_enqueue() can not be used for sending the packet
> for SW Tx adapter.
> 
[Nikhil] The goal was to keep the workers using the loop below. 

while (1) {
        rte_event_dequeue_burst(...);
        (event processing)
        rte_event_enqueue_burst(...);
}

Thanks,
Nikhil

> Nothing is set and stone. We can always improve the API if required.
> 
> 
> >
> >
> > >
> > >
> > >
> > > >
> > > > Regards,
> > > > Nipun
> > > >
> > > > >
> > > > >
> > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > Signed-off-by: Nipun Gupta <nipun.gupta at nxp.com>
> > > > > > > > > > ---
> > > > > > > > > >  app/test-eventdev/test_pipeline_common.h          |  6 +++---
> > > > > > > > > >  .../prog_guide/event_ethernet_tx_adapter.rst      |  3 ++-
> > > > > > > > > >  drivers/event/octeontx/ssovf_evdev.h              |  2 +-
> > > > > > > > > >  drivers/event/octeontx/ssovf_worker.c             |  3 ++-
> > > > > > > > > >  drivers/event/octeontx2/otx2_evdev.h              | 12 ++++++++--
> --
> > > > > > > > > >  drivers/event/octeontx2/otx2_worker.c             |  8 ++++++--
> > > > > > > > > >  drivers/event/octeontx2/otx2_worker_dual.c        |  8 ++++++--
> > > > > > > > > >  lib/librte_eventdev/rte_event_eth_tx_adapter.h    | 15
> > > > > > > +++++++++++++--
> > > > > > > > > >  lib/librte_eventdev/rte_eventdev.c                |  3 ++-
> > > > > > > > > >  lib/librte_eventdev/rte_eventdev.h                |  2 +-
> > > > > > > > > >  10 files changed, 44 insertions(+), 18 deletions(-)
> > > > > > > > > >
> > > > > > > > > > diff --git a/app/test-eventdev/test_pipeline_common.h
> > > > > b/app/test-
> > > > > > > > > eventdev/test_pipeline_common.h
> > > > > > > > > > index 0440b9e29..6e73c6ab2 100644
> > > > > > > > > > --- a/app/test-eventdev/test_pipeline_common.h
> > > > > > > > > > +++ b/app/test-eventdev/test_pipeline_common.h
> > > > > > > > > > @@ -106,7 +106,7 @@ pipeline_event_tx(const uint8_t
> > > > > > > > > > dev, const
> > > > > > > uint8_t
> > > > > > > > > port,
> > > > > > > > > >                 struct rte_event * const ev)  {
> > > > > > > > > >         rte_event_eth_tx_adapter_txq_set(ev->mbuf, 0);
> > > > > > > > > > -       while (!rte_event_eth_tx_adapter_enqueue(dev, port, ev,
> > > 1))
> > > > > > > > > > +       while (!rte_event_eth_tx_adapter_enqueue(dev,
> > > > > > > > > > + port, ev, 1,
> > > > > 0))
> > > > > > > > > >                 rte_pause();  }
> > > > > > > > > >
> > > > > > > > > > @@ -116,10 +116,10 @@ pipeline_event_tx_burst(const
> > > > > > > > > > uint8_t
> > > > > dev,
> > > > > > > const
> > > > > > > > > uint8_t port,
> > > > > > > > > >  {
> > > > > > > > > >         uint16_t enq;
> > > > > > > > > >
> > > > > > > > > > -       enq = rte_event_eth_tx_adapter_enqueue(dev, port, ev,
> > > > > nb_rx);
> > > > > > > > > > +       enq = rte_event_eth_tx_adapter_enqueue(dev,
> > > > > > > > > > + port, ev,
> > > > > nb_rx,
> > > > > > > 0);
> > > > > > > > > >         while (enq < nb_rx) {
> > > > > > > > > >                 enq += rte_event_eth_tx_adapter_enqueue(dev, port,
> > > > > > > > > > -                               ev + enq, nb_rx - enq);
> > > > > > > > > > +                               ev + enq, nb_rx - enq,
> > > > > > > > > > + 0);
> > > > > > > > > >         }
> > > > > > > > > >  }
> > > > > > > > > >
> > > > > > > > > > diff --git
> > > > > > > > > > a/doc/guides/prog_guide/event_ethernet_tx_adapter.rst
> > > > > > > > > b/doc/guides/prog_guide/event_ethernet_tx_adapter.rst
> > > > > > > > > > index 192f9e1cf..a8c13e136 100644
> > > > > > > > > > ---
> > > > > > > > > > a/doc/guides/prog_guide/event_ethernet_tx_adapter.rst
> > > > > > > > > > +++ b/doc/guides/prog_guide/event_ethernet_tx_adapter.
> > > > > > > > > > +++ rst
> > > > > > > > > > @@ -137,11 +137,12 @@ should use the
> > > > > > > ``rte_event_enqueue_burst()``
> > > > > > > > > function.
> > > > > > > > > >         if (cap &
> > > > > > > > > > RTE_EVENT_ETH_TX_ADAPTER_CAP_INTERNAL_PORT)
> > > > > {
> > > > > > > > > >
> > > > > > > > > >                 event.mbuf = m;
> > > > > > > > > > +               eq_flags = 0;
> > > > > > > > > >
> > > > > > > > > >                 m->port = tx_port;
> > > > > > > > > >                 rte_event_eth_tx_adapter_txq_set(m,
> > > > > > > > > > tx_queue_id);
> > > > > > > > > >
> > > > > > > > > > -               rte_event_eth_tx_adapter_enqueue(dev_id, ev_port,
> > > > > &event,
> > > > > > > 1);
> > > > > > > > > > +
> > > > > > > > > > + rte_event_eth_tx_adapter_enqueue(dev_id,
> > > > > > > > > > + ev_port,
> > > > > > > &event, 1,
> > > > > > > > > eq_flags);
> > > > > > > > > >         } else {
> > > > > > > > > >
> > > > > > > > > >                 event.queue_id = qid; /* event queue
> > > > > > > > > > linked to adapter
> > > > > port */
> > > > > > > > > > diff --git a/drivers/event/octeontx/ssovf_evdev.h
> > > > > > > > > b/drivers/event/octeontx/ssovf_evdev.h
> > > > > > > > > > index 0e622152c..1b156edab 100644
> > > > > > > > > > --- a/drivers/event/octeontx/ssovf_evdev.h
> > > > > > > > > > +++ b/drivers/event/octeontx/ssovf_evdev.h
> > > > > > > > > > @@ -181,7 +181,7 @@ void ssows_flush_events(struct
> > > > > > > > > > ssows *ws,
> > > > > > > uint8_t
> > > > > > > > > queue_id,
> > > > > > > > > >                 ssows_handle_event_t fn, void *arg);
> > > > > > > > > > void ssows_reset(struct ssows *ws);  uint16_t
> > > > > > > > > > sso_event_tx_adapter_enqueue(void *port,
> > > > > > > > > > -               struct rte_event ev[], uint16_t nb_events);
> > > > > > > > > > +               struct rte_event ev[], uint16_t
> > > > > > > > > > + nb_events, uint8_t
> > > > > eq_flags);
> > > > > > > > > >  int ssovf_info(struct ssovf_info *info);  void
> > > > > > > > > > *ssovf_bar(enum ssovf_type, uint8_t id, uint8_t bar);
> > > > > > > > > > int test_eventdev_octeontx(void); diff --git
> > > > > > > > > > a/drivers/event/octeontx/ssovf_worker.c
> > > > > > > > > b/drivers/event/octeontx/ssovf_worker.c
> > > > > > > > > > index d940b5dd6..1d0467af3 100644
> > > > > > > > > > --- a/drivers/event/octeontx/ssovf_worker.c
> > > > > > > > > > +++ b/drivers/event/octeontx/ssovf_worker.c
> > > > > > > > > > @@ -264,7 +264,7 @@ ssows_reset(struct ssows *ws)
> > > > > > > > > >
> > > > > > > > > >  uint16_t
> > > > > > > > > >  sso_event_tx_adapter_enqueue(void *port,
> > > > > > > > > > -               struct rte_event ev[], uint16_t nb_events)
> > > > > > > > > > +               struct rte_event ev[], uint16_t
> > > > > > > > > > + nb_events, uint8_t eq_flags)
> > > > > > > > > >  {
> > > > > > > > > >         uint16_t port_id;
> > > > > > > > > >         uint16_t queue_id; @@ -275,6 +275,7 @@
> > > > > > > > > > sso_event_tx_adapter_enqueue(void *port,
> > > > > > > > > >         octeontx_dq_t *dq;
> > > > > > > > > >
> > > > > > > > > >         RTE_SET_USED(nb_events);
> > > > > > > > > > +       RTE_SET_USED(eq_flags);
> > > > > > > > > >         switch (ev->sched_type) {
> > > > > > > > > >         case SSO_SYNC_ORDERED:
> > > > > > > > > >                 ssows_swtag_norm(ws, ev->event,
> > > > > > > > > > SSO_SYNC_ATOMIC); diff --git
> > > > > > > > > > a/drivers/event/octeontx2/otx2_evdev.h
> > > > > > > > > b/drivers/event/octeontx2/otx2_evdev.h
> > > > > > > > > > index 5cd80e3b2..74b749a15 100644
> > > > > > > > > > --- a/drivers/event/octeontx2/otx2_evdev.h
> > > > > > > > > > +++ b/drivers/event/octeontx2/otx2_evdev.h
> > > > > > > > > > @@ -333,16 +333,20 @@
> > > SSO_RX_ADPTR_ENQ_FASTPATH_FUNC
> > > > > > > > > >
> > > > > > > > > >  #define T(name, f4, f3, f2, f1, f0, sz, flags)                              \
> > > > > > > > > >  uint16_t otx2_ssogws_tx_adptr_enq_ ## name(void
> > > > > > > > > > *port, struct
> > > > > > > rte_event
> > > > > > > > > ev[],\
> > > > > > > > > > -                                          uint16_t nb_events);              \
> > > > > > > > > > +                                          uint16_t nb_events,               \
> > > > > > > > > > +                                          uint8_t eq_flags);                \
> > > > > > > > > >  uint16_t otx2_ssogws_tx_adptr_enq_seg_ ## name(void
> > > > > > > > > > *port,
> > > > > > > \
> > > > > > > > > >                                                struct rte_event ev[],        \
> > > > > > > > > > -                                              uint16_t nb_events);          \
> > > > > > > > > > +                                              uint16_t nb_events,           \
> > > > > > > > > > +                                              uint8_t eq_flags);            \
> > > > > > > > > >  uint16_t otx2_ssogws_dual_tx_adptr_enq_ ## name(void
> > > > > > > > > > *port,
> > > > > > > \
> > > > > > > > > >                                                 struct rte_event ev[],       \
> > > > > > > > > > -                                               uint16_t nb_events);         \
> > > > > > > > > > +                                               uint16_t nb_events,          \
> > > > > > > > > > +                                               uint8_t eq_flags);           \
> > > > > > > > > >  uint16_t otx2_ssogws_dual_tx_adptr_enq_seg_ ##
> > > > > > > > > > name(void
> > > > > *port,
> > > > > > > > > \
> > > > > > > > > >                                                     struct rte_event ev[],   \
> > > > > > > > > > -                                                   uint16_t nb_events);     \
> > > > > > > > > > +                                                   uint16_t nb_events,      \
> > > > > > > > > > +                                                   uint8_t eq_flags);       \
> > > > > > > > > >
> > > > > > > > > >  SSO_TX_ADPTR_ENQ_FASTPATH_FUNC  #undef T diff --git
> > > > > > > > > > a/drivers/event/octeontx2/otx2_worker.c
> > > > > > > > > b/drivers/event/octeontx2/otx2_worker.c
> > > > > > > > > > index cd14cd3d2..100e21669 100644
> > > > > > > > > > --- a/drivers/event/octeontx2/otx2_worker.c
> > > > > > > > > > +++ b/drivers/event/octeontx2/otx2_worker.c
> > > > > > > > > > @@ -270,12 +270,14 @@ otx2_ssogws_enq_fwd_burst(void
> > > > > > > > > > *port,
> > > > > > > const
> > > > > > > > > struct rte_event ev[],
> > > > > > > > > >  #define T(name, f4, f3, f2, f1, f0, sz, flags)                         \
> > > > > > > > > >  uint16_t __hot                                                         \
> > > > > > > > > >  otx2_ssogws_tx_adptr_enq_ ## name(void *port, struct
> > > > > > > > > > rte_event
> > > > > > > ev[],   \
> > > > > > > > > > -                                 uint16_t nb_events)                   \
> > > > > > > > > > +                                 uint16_t nb_events,                   \
> > > > > > > > > > +                                 uint8_t eq_flags)                     \
> > > > > > > > > >  {                                                                      \
> > > > > > > > > >         struct otx2_ssogws *ws = port;                                  \
> > > > > > > > > >         uint64_t cmd[sz];                                               \
> > > > > > > > > >                                                                         \
> > > > > > > > > >         RTE_SET_USED(nb_events);                                        \
> > > > > > > > > > +       RTE_SET_USED(eq_flags);                                         \
> > > > > > > > > >         return otx2_ssogws_event_tx(ws, ev, cmd, flags);
> \
> > > > > > > > > >  }
> > > > > > > > > >  SSO_TX_ADPTR_ENQ_FASTPATH_FUNC @@ -284,12 +286,14
> > > @@
> > > > > > > > > > SSO_TX_ADPTR_ENQ_FASTPATH_FUNC
> > > > > > > > > >  #define T(name, f4, f3, f2, f1, f0, sz, flags)                         \
> > > > > > > > > >  uint16_t __hot                                                         \
> > > > > > > > > >  otx2_ssogws_tx_adptr_enq_seg_ ## name(void *port,
> > > > > > > > > > struct
> > > > > > > rte_event ev[],\
> > > > > > > > > > -                                     uint16_t nb_events)               \
> > > > > > > > > > +                                     uint16_t nb_events,               \
> > > > > > > > > > +                                     uint8_t eq_flags)                 \
> > > > > > > > > >  {                                                                      \
> > > > > > > > > >         struct otx2_ssogws *ws = port;                                  \
> > > > > > > > > >         uint64_t cmd[(sz) + NIX_TX_MSEG_SG_DWORDS -
> > > > > > > > > > 2];
> > > \
> > > > > > > > > >                                                                         \
> > > > > > > > > >         RTE_SET_USED(nb_events);                                        \
> > > > > > > > > > +       RTE_SET_USED(eq_flags);                                         \
> > > > > > > > > >         return otx2_ssogws_event_tx(ws, ev, cmd, (flags) |
> \
> > > > > > > > > >                                     NIX_TX_MULTI_SEG_F);                \
> > > > > > > > > >  }
> > > > > > > > > > diff --git
> > > > > > > > > > a/drivers/event/octeontx2/otx2_worker_dual.c
> > > > > > > > > b/drivers/event/octeontx2/otx2_worker_dual.c
> > > > > > > > > > index 37c274a54..c3e48da42 100644
> > > > > > > > > > --- a/drivers/event/octeontx2/otx2_worker_dual.c
> > > > > > > > > > +++ b/drivers/event/octeontx2/otx2_worker_dual.c
> > > > > > > > > > @@ -310,7 +310,8 @@
> SSO_RX_ADPTR_ENQ_FASTPATH_FUNC
> > > > > > > > > >  uint16_t __hot                                                         \
> > > > > > > > > >  otx2_ssogws_dual_tx_adptr_enq_ ## name(void *port,
> > > \
> > > > > > > > > >                                        struct rte_event ev[],           \
> > > > > > > > > > -                                      uint16_t nb_events)              \
> > > > > > > > > > +                                      uint16_t nb_events,              \
> > > > > > > > > > +                                      uint8_t eq_flags)                \
> > > > > > > > > >  {                                                                      \
> > > > > > > > > >         struct otx2_ssogws_dual *ws = port;                             \
> > > > > > > > > >         struct otx2_ssogws *vws =                                       \
> > > > > > > > > > @@ -318,6 +319,7 @@ otx2_ssogws_dual_tx_adptr_enq_ ##
> > > > > > > name(void *port,
> > > > > > > > > \
> > > > > > > > > >         uint64_t cmd[sz];                                               \
> > > > > > > > > >                                                                         \
> > > > > > > > > >         RTE_SET_USED(nb_events);                                        \
> > > > > > > > > > +       RTE_SET_USED(eq_flags);                                         \
> > > > > > > > > >         return otx2_ssogws_event_tx(vws, ev, cmd, flags);
> \
> > > > > > > > > >  }
> > > > > > > > > >  SSO_TX_ADPTR_ENQ_FASTPATH_FUNC @@ -327,7 +329,8
> @@
> > > > > > > > > > SSO_TX_ADPTR_ENQ_FASTPATH_FUNC
> > > > > > > > > >  uint16_t __hot                                                         \
> > > > > > > > > >  otx2_ssogws_dual_tx_adptr_enq_seg_ ## name(void
> > > > > > > > > > *port,
> > > > > \
> > > > > > > > > >                                            struct rte_event ev[],       \
> > > > > > > > > > -                                          uint16_t nb_events)          \
> > > > > > > > > > +                                          uint16_t nb_events,          \
> > > > > > > > > > +                                          uint8_t eq_flags)            \
> > > > > > > > > >  {                                                                      \
> > > > > > > > > >         struct otx2_ssogws_dual *ws = port;                             \
> > > > > > > > > >         struct otx2_ssogws *vws =                                       \
> > > > > > > > > > @@ -335,6 +338,7 @@ otx2_ssogws_dual_tx_adptr_enq_seg_
> > > ##
> > > > > > > name(void
> > > > > > > > > *port,                      \
> > > > > > > > > >         uint64_t cmd[(sz) + NIX_TX_MSEG_SG_DWORDS -
> > > > > > > > > > 2];
> > > \
> > > > > > > > > >                                                                         \
> > > > > > > > > >         RTE_SET_USED(nb_events);                                        \
> > > > > > > > > > +       RTE_SET_USED(eq_flags);                                         \
> > > > > > > > > >         return otx2_ssogws_event_tx(vws, ev, cmd, (flags) |
> \
> > > > > > > > > >                                     NIX_TX_MULTI_SEG_F);                \
> > > > > > > > > >  }
> > > > > > > > > > diff --git
> > > > > > > > > > a/lib/librte_eventdev/rte_event_eth_tx_adapter.h
> > > > > > > > > b/lib/librte_eventdev/rte_event_eth_tx_adapter.h
> > > > > > > > > > index c848261c4..98be77568 100644
> > > > > > > > > > --- a/lib/librte_eventdev/rte_event_eth_tx_adapter.h
> > > > > > > > > > +++ b/lib/librte_eventdev/rte_event_eth_tx_adapter.h
> > > > > > > > > > @@ -300,6 +300,11 @@
> > > > > > > > > > rte_event_eth_tx_adapter_txq_get(struct
> > > > > > > rte_mbuf
> > > > > > > > > *pkt)
> > > > > > > > > >  int
> > > > > > > > > >  rte_event_eth_tx_adapter_event_port_get(uint8_t id,
> > > > > > > > > > uint8_t
> > > > > > > > > *event_port_id);
> > > > > > > > > >
> > > > > > > > > > +#define
> RTE_EVENT_ETH_TX_ADAPTER_ENQUEUE_SAME_DEST
> > > > > 0x1
> > > > > > > > > > +/**< This flag is used when all the packets enqueued
> > > > > > > > > > +in the tx
> > > > > adapter
> > > > > > > are
> > > > > > > > > > + * destined for the same Ethernet device, queue pair.
> > > > > > > > > > + */
> > > > > > > > > > +
> > > > > > > > > >  /**
> > > > > > > > > >   * Enqueue a burst of events objects or an event
> > > > > > > > > > object supplied in
> > > > > > > > > *rte_event*
> > > > > > > > > >   * structure on an  event device designated by its
> > > > > > > > > > *dev_id* through
> > > > > > > the event
> > > > > > > > > > @@ -324,6 +329,10 @@
> > > > > > > rte_event_eth_tx_adapter_event_port_get(uint8_t
> > > > > > > > > id, uint8_t *event_port_id);
> > > > > > > > > >   *  The number of event objects to enqueue, typically number
> of
> > > > > > > > > >   *
> > > > > rte_event_port_attr_get(...RTE_EVENT_PORT_ATTR_ENQ_DEPTH...)
> > > > > > > > > >   *  available for this port.
> > > > > > > > > > + * @param flags
> > > > > > > > > > + *  See RTE_EVENT_ETH_TX_ADAPTER_ENQUEUE_ flags.
> > > > > > > > > > + *  #RTE_EVENT_ETH_TX_ADAPTER_ENQUEUE_SAME_DEST
> > > > > signifies
> > > > > > > that all
> > > > > > > > > the packets
> > > > > > > > > > + *  which are enqueued are destined for the same
> > > > > > > > > > + Ethernet device,
> > > > > > > queue pair.
> > > > > > > > > >   *
> > > > > > > > > >   * @return
> > > > > > > > > >   *   The number of event objects actually enqueued on the
> event
> > > > > > > device. The
> > > > > > > > > > @@ -343,7 +352,8 @@ static inline uint16_t
> > > > > > > > > > rte_event_eth_tx_adapter_enqueue(uint8_t dev_id,
> > > > > > > > > >                                 uint8_t port_id,
> > > > > > > > > >                                 struct rte_event ev[],
> > > > > > > > > > -                               uint16_t nb_events)
> > > > > > > > > > +                               uint16_t nb_events,
> > > > > > > > > > +                               uint8_t flags)
> > > > > > > > > >  {
> > > > > > > > > >         const struct rte_eventdev *dev =
> > > > > > > > > > &rte_eventdevs[dev_id];
> > > > > > > > > >
> > > > > > > > > > @@ -359,7 +369,8 @@
> > > > > rte_event_eth_tx_adapter_enqueue(uint8_t
> > > > > > > dev_id,
> > > > > > > > > >                 return 0;
> > > > > > > > > >         }
> > > > > > > > > >  #endif
> > > > > > > > > > -       return dev->txa_enqueue(dev->data->ports[port_id], ev,
> > > > > > > nb_events);
> > > > > > > > > > +       return dev->txa_enqueue(dev->data->ports[port_id], ev,
> > > > > > > > > > +                               nb_events, flags);
> > > > > > > > > >  }
> > > > > > > > > >
> > > > > > > > > >  /**
> > > > > > > > > > diff --git a/lib/librte_eventdev/rte_eventdev.c
> > > > > > > > > b/lib/librte_eventdev/rte_eventdev.c
> > > > > > > > > > index f44c869cb..3bf9d7115 100644
> > > > > > > > > > --- a/lib/librte_eventdev/rte_eventdev.c
> > > > > > > > > > +++ b/lib/librte_eventdev/rte_eventdev.c
> > > > > > > > > > @@ -1324,7 +1324,8 @@
> > > > > rte_eventdev_find_free_device_index(void)
> > > > > > > > > >  static uint16_t
> > > > > > > > > >  rte_event_tx_adapter_enqueue(__rte_unused void *port,
> > > > > > > > > >                         __rte_unused struct rte_event ev[],
> > > > > > > > > > -                       __rte_unused uint16_t nb_events)
> > > > > > > > > > +                       __rte_unused uint16_t nb_events,
> > > > > > > > > > +                       __rte_unused uint8_t flags)
> > > > > > > > > >  {
> > > > > > > > > >         rte_errno = ENOTSUP;
> > > > > > > > > >         return 0;
> > > > > > > > > > diff --git a/lib/librte_eventdev/rte_eventdev.h
> > > > > > > > > b/lib/librte_eventdev/rte_eventdev.h
> > > > > > > > > > index 5044a13d0..2a5643da3 100644
> > > > > > > > > > --- a/lib/librte_eventdev/rte_eventdev.h
> > > > > > > > > > +++ b/lib/librte_eventdev/rte_eventdev.h
> > > > > > > > > > @@ -1227,7 +1227,7 @@ typedef uint16_t
> > > > > > > (*event_dequeue_burst_t)(void
> > > > > > > > > *port, struct rte_event ev[],
> > > > > > > > > >  /**< @internal Dequeue burst of events from port of a
> > > > > > > > > > device */
> > > > > > > > > >
> > > > > > > > > >  typedef uint16_t (*event_tx_adapter_enqueue)(void *port,
> > > > > > > > > > -                               struct rte_event ev[], uint16_t nb_events);
> > > > > > > > > > +               struct rte_event ev[], uint16_t
> > > > > > > > > > + nb_events, uint8_t flags);
> > > > > > > > > >  /**< @internal Enqueue burst of events on port of a
> > > > > > > > > > device */
> > > > > > > > > >
> > > > > > > > > >  #define RTE_EVENTDEV_NAME_MAX_LEN      (64)
> > > > > > > > > > --
> > > > > > > > > > 2.17.1
> > > > > > > > > >


More information about the dev mailing list