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From: Bruce Richardson <bruce.richardson@intel.com>
To: Jerin Jacob <jerinjacobk@gmail.com>
Cc: fengchengwen <fengchengwen@huawei.com>,
	"Thomas Monjalon" <thomas@monjalon.net>,
	"Ferruh Yigit" <ferruh.yigit@intel.com>,
	"Jerin Jacob" <jerinj@marvell.com>, dpdk-dev <dev@dpdk.org>,
	"Morten Brørup" <mb@smartsharesystems.com>,
	"Nipun Gupta" <nipun.gupta@nxp.com>,
	"Hemant Agrawal" <hemant.agrawal@nxp.com>,
	"Maxime Coquelin" <maxime.coquelin@redhat.com>,
	"Honnappa Nagarahalli" <honnappa.nagarahalli@arm.com>,
	"David Marchand" <david.marchand@redhat.com>,
	"Satananda Burla" <sburla@marvell.com>,
	"Prasun Kapoor" <pkapoor@marvell.com>,
	"Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
	liangma@liangbit.com,
	"Radha Mohan Chintakuntla" <radhac@marvell.com>
Subject: Re: [dpdk-dev] [PATCH] dmadev: introduce DMA device library
Date: Fri, 9 Jul 2021 10:14:35 +0100	[thread overview]
Message-ID: <YOgTe7S7F9CHW/E5@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <CALBAE1PwcCf-L3mb5QAup2xfGNme8ActvaUa_mVN07CVBDUkFA@mail.gmail.com>

On Fri, Jul 09, 2021 at 12:05:40AM +0530, Jerin Jacob wrote:
> On Thu, Jul 8, 2021 at 8:41 AM fengchengwen <fengchengwen@huawei.com> wrote:
> >
> 
> > >>>
> > >>> It's just more conditionals and branches all through the code. Inside the
> > >>> user application, the user has to check whether to set the flag or not (or
> > >>> special-case the last transaction outside the loop), and within the driver,
> > >>> there has to be a branch whether or not to call the doorbell function. The
> > >>> code on both sides is far simpler and more readable if the doorbell
> > >>> function is exactly that - a separate function.
> > >>
> > >> I disagree. The reason is:
> > >>
> > >> We will have two classes of applications
> > >>
> > >> a) do dma copy request as and when it has data(I think, this is the
> > >> prime use case), for those,
> > >> I think, it is considerable overhead to have two function invocation
> > >> per transfer i.e
> > >> rte_dma_copy() and rte_dma_perform()
> > >>
> > >> b) do dma copy when the data is reached to a logical state,  like copy
> > >> IP frame from Ethernet packets or so,
> > >> In that case, the application will have  a LOGIC to detect when to
> > >> perform it so on the end of
> > >> that rte_dma_copy() flag can be updated to fire the doorbell.
> > >>
> > >> IMO, We are comparing against a branch(flag is already in register) vs
> > >> a set of instructions for
> > >> 1) function pointer overhead
> > >> 2) Need to use the channel context again back in another function.
> > >>
> > >> IMO, a single branch is most optimal from performance PoV.
> > >>
> > > Ok, let's try it and see how it goes.
> >
> > Test result show:
> > 1) For Kunpeng platform (ARMv8) could benefit very little with doorbell in flags
> > 2) For Xeon E5-2690 v2 (X86) could benefit with separate function
> > 3) Both platform could benefit with doorbell in flags if burst < 5
> >
> > There is a performance gain in small bursts (<5). Given the extensive use of bursts
>  in DPDK applications and users are accustomed to the concept, I do
> not recommend
> > using the 'doorbell' in flags.
> 
> There is NO concept change between one option vs other option. Just
> argument differnet.
> Also, _perform() scheme not used anywhere in DPDK. I
> 
> Regarding performance, I have added dummy instructions to simulate the real work
> load[1], now burst also has some gain in both x86 and arm64[3]
> 
> I have modified your application[2] to dpdk test application to use
> cpu isolation etc.
> So this is gain in flag scheme ad code is checked in to Github[2[
> 
<snip>

The benchmark numbers all seem very close between the two schemes. On my
team we pretty much have test ioat & idxd drivers ported internally to the
last dmadev draft library, and have sample apps handling traffic using
those. I'll therefore attempt to get these numbers with real traffic on
real drivers to just double check that it's the same as these
microbenchmarks.

Assuming that perf is the same, how to resolve this? Some thoughts:
* As I understand it, the main objection to the separate doorbell function
  is the use of 8-bytes in fastpath slot. Therefore I will also attempt to
  benchmark having the doorbell function not on the same cacheline and check
  perf impact, if any.
* If we don't have a impact to perf by having the doorbell function inside
  the regular "ops" rather than on fastpath cacheline, there is no reason
  we can't implement both schemes. The user can then choose themselves
  whether to doorbell using a flag on last item, or to doorbell explicitly
  using function call.

Of the two schemes, and assuming they are equal, I do have a preference for
the separate function one, primarily from a code readability point of view.
Other than that, I have no strong opinions.

/Bruce

  reply	other threads:[~2021-07-09  9:14 UTC|newest]

Thread overview: 339+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-02 13:18 Chengwen Feng
2021-07-02 13:59 ` Bruce Richardson
2021-07-04  9:30 ` Jerin Jacob
2021-07-05 10:52   ` Bruce Richardson
2021-07-05 11:12     ` Morten Brørup
2021-07-05 13:44       ` Bruce Richardson
2021-07-05 15:55     ` Jerin Jacob
2021-07-05 17:16       ` Bruce Richardson
2021-07-07  8:08         ` Jerin Jacob
2021-07-07  8:35           ` Bruce Richardson
2021-07-07 10:34             ` Jerin Jacob
2021-07-07 11:01               ` Bruce Richardson
2021-07-08  3:11                 ` fengchengwen
2021-07-08 18:35                   ` Jerin Jacob
2021-07-09  9:14                     ` Bruce Richardson [this message]
2021-07-11  7:14                       ` Jerin Jacob
2021-07-12  7:01                         ` Morten Brørup
2021-07-12  7:59                           ` Jerin Jacob
2021-07-06  8:20     ` fengchengwen
2021-07-06  9:27       ` Bruce Richardson
2021-07-06  3:01   ` fengchengwen
2021-07-06 10:01     ` Bruce Richardson
2021-07-04 14:57 ` Andrew Rybchenko
2021-07-06  3:56   ` fengchengwen
2021-07-06 10:02     ` Bruce Richardson
2021-07-04 15:21 ` Matan Azrad
2021-07-06  6:25   ` fengchengwen
2021-07-06  6:50     ` Matan Azrad
2021-07-06  9:08       ` fengchengwen
2021-07-06  9:17         ` Matan Azrad
2021-07-06 20:28 ` [dpdk-dev] [RFC UPDATE PATCH 0/9] dmadev rfc suggested updates Bruce Richardson
2021-07-06 20:28   ` [dpdk-dev] [RFC UPDATE PATCH 1/9] dmadev: add missing exports Bruce Richardson
2021-07-07  8:26     ` David Marchand
2021-07-07  8:36       ` Bruce Richardson
2021-07-07  8:57         ` David Marchand
2021-07-06 20:28   ` [dpdk-dev] [RFC UPDATE PATCH 2/9] dmadev: change virtual addresses to IOVA Bruce Richardson
2021-07-06 20:28   ` [dpdk-dev] [RFC UPDATE PATCH 3/9] dmadev: add dump function Bruce Richardson
2021-07-06 20:28   ` [dpdk-dev] [RFC UPDATE PATCH 4/9] dmadev: remove xstats functions Bruce Richardson
2021-07-06 20:28   ` [dpdk-dev] [RFC UPDATE PATCH 5/9] dmadev: drop cookie typedef Bruce Richardson
2021-07-06 20:28   ` [dpdk-dev] [RFC UPDATE PATCH 6/9] dmadev: allow NULL parameters to completed ops call Bruce Richardson
2021-07-06 20:28   ` [dpdk-dev] [RFC UPDATE PATCH 7/9] dmadev: stats structure updates Bruce Richardson
2021-07-06 20:28   ` [dpdk-dev] [RFC UPDATE PATCH 8/9] drivers: add dma driver category Bruce Richardson
2021-07-06 20:28   ` [dpdk-dev] [RFC UPDATE PATCH 9/9] app/test: add basic dmadev unit test Bruce Richardson
2021-07-07  3:16   ` [dpdk-dev] [RFC UPDATE PATCH 0/9] dmadev rfc suggested updates fengchengwen
2021-07-07  8:11     ` Bruce Richardson
2021-07-07  8:14     ` Bruce Richardson
2021-07-07 10:42     ` Jerin Jacob
2021-07-11  9:25 ` [dpdk-dev] [PATCH v2] dmadev: introduce DMA device library Chengwen Feng
2021-07-11  9:42   ` fengchengwen
2021-07-11 13:34     ` Jerin Jacob
2021-07-12  7:40       ` Morten Brørup
2021-07-11 14:25   ` Jerin Jacob
2021-07-12  7:15   ` Morten Brørup
2021-07-12  9:59   ` Jerin Jacob
2021-07-12 13:32     ` Bruce Richardson
2021-07-12 16:34       ` Jerin Jacob
2021-07-12 17:00         ` Bruce Richardson
2021-07-13  8:59           ` Jerin Jacob
2021-07-12 12:05   ` Bruce Richardson
2021-07-12 15:50   ` Bruce Richardson
2021-07-13  9:07     ` Jerin Jacob
2021-07-13 14:19   ` Ananyev, Konstantin
2021-07-13 14:28     ` Bruce Richardson
2021-07-13 12:27 ` [dpdk-dev] [PATCH v3] " Chengwen Feng
2021-07-13 13:06   ` fengchengwen
2021-07-13 13:37     ` Bruce Richardson
2021-07-15  6:44       ` Jerin Jacob
2021-07-15  8:25         ` Bruce Richardson
2021-07-15  9:49           ` Jerin Jacob
2021-07-15 10:00             ` Bruce Richardson
2021-07-13 16:02   ` Bruce Richardson
2021-07-14 12:22   ` Nipun Gupta
2021-07-15  8:29     ` fengchengwen
2021-07-15 11:16       ` Nipun Gupta
2021-07-15 12:11         ` Bruce Richardson
2021-07-15 12:31           ` Jerin Jacob
2021-07-15 12:34             ` Nipun Gupta
2021-07-14 16:05   ` Bruce Richardson
2021-07-15  7:10   ` Jerin Jacob
2021-07-15  9:03     ` Bruce Richardson
2021-07-15  9:30       ` Jerin Jacob
2021-07-15 10:03         ` Bruce Richardson
2021-07-15 10:05           ` Bruce Richardson
2021-07-15 15:41 ` [dpdk-dev] [PATCH v4] " Chengwen Feng
2021-07-15 16:04   ` fengchengwen
2021-07-15 16:33     ` Bruce Richardson
2021-07-16  3:04       ` fengchengwen
2021-07-16  9:50         ` Bruce Richardson
2021-07-16 12:34           ` Jerin Jacob
2021-07-16 12:40         ` Jerin Jacob
2021-07-16 12:48           ` Bruce Richardson
2021-07-16 12:54     ` Jerin Jacob
2021-07-16  2:45 ` [dpdk-dev] [PATCH v5] " Chengwen Feng
2021-07-16 13:20   ` Jerin Jacob
2021-07-16 14:41   ` Bruce Richardson
2021-07-19  3:29 ` [dpdk-dev] [PATCH v6] " Chengwen Feng
2021-07-19  6:21   ` Jerin Jacob
2021-07-19 13:20     ` fengchengwen
2021-07-19 13:36       ` Jerin Jacob
2021-07-19 13:05 ` [dpdk-dev] [PATCH v7] " Chengwen Feng
2021-07-20  1:14 ` [dpdk-dev] [PATCH v8] " Chengwen Feng
2021-07-20  5:03   ` Jerin Jacob
2021-07-20  6:53     ` fengchengwen
2021-07-20  9:43       ` Jerin Jacob
2021-07-20 10:13       ` Bruce Richardson
2021-07-20 11:12 ` [dpdk-dev] [PATCH v9] " Chengwen Feng
2021-07-20 12:05   ` Bruce Richardson
2021-07-20 12:46 ` [dpdk-dev] [PATCH v10] " Chengwen Feng
2021-07-26  6:53   ` fengchengwen
2021-07-26  8:31     ` Bruce Richardson
2021-07-27  3:57       ` fengchengwen
2021-07-26 11:03     ` Morten Brørup
2021-07-26 11:21       ` Jerin Jacob
2021-07-27  3:39 ` [dpdk-dev] [PATCH v11 0/2] support dmadev Chengwen Feng
2021-07-27  3:39   ` [dpdk-dev] [PATCH v11 1/2] dmadev: introduce DMA device library Chengwen Feng
2021-07-28 11:13     ` Bruce Richardson
2021-07-29  1:26       ` fengchengwen
2021-07-29  9:15         ` Bruce Richardson
2021-07-29 13:33           ` fengchengwen
2021-07-29 10:44         ` Jerin Jacob
2021-07-29 13:30           ` fengchengwen
2021-07-27  3:40   ` [dpdk-dev] [PATCH v11 2/2] doc: add dmadev library guide Chengwen Feng
2021-07-29 11:02     ` Jerin Jacob
2021-07-29 13:13       ` fengchengwen
2021-07-29 13:28         ` fengchengwen
2021-07-29 13:06 ` [dpdk-dev] [PATCH v12 0/6] support dmadev Chengwen Feng
2021-07-29 13:06   ` [dpdk-dev] [PATCH v12 1/6] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-07-29 13:06   ` [dpdk-dev] [PATCH v12 2/6] dmadev: introduce DMA device library internal header Chengwen Feng
2021-07-29 13:06   ` [dpdk-dev] [PATCH v12 3/6] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-07-29 13:06   ` [dpdk-dev] [PATCH v12 4/6] dmadev: introduce DMA device library implementation Chengwen Feng
2021-07-29 13:06   ` [dpdk-dev] [PATCH v12 5/6] doc: add DMA device library guide Chengwen Feng
2021-07-29 13:06   ` [dpdk-dev] [PATCH v12 6/6] maintainers: add for dmadev Chengwen Feng
2021-08-03 11:29 ` [dpdk-dev] [PATCH v13 0/6] support dmadev Chengwen Feng
2021-08-03 11:29   ` [dpdk-dev] [PATCH v13 1/6] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-08-03 11:29   ` [dpdk-dev] [PATCH v13 2/6] dmadev: introduce DMA device library internal header Chengwen Feng
2021-08-03 11:29   ` [dpdk-dev] [PATCH v13 3/6] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-08-03 11:29   ` [dpdk-dev] [PATCH v13 4/6] dmadev: introduce DMA device library implementation Chengwen Feng
2021-08-05 12:56     ` Walsh, Conor
2021-08-05 13:12       ` fengchengwen
2021-08-05 13:44         ` Conor Walsh
2021-08-03 11:29   ` [dpdk-dev] [PATCH v13 5/6] doc: add DMA device library guide Chengwen Feng
2021-08-03 14:55     ` Jerin Jacob
2021-08-05 13:15       ` fengchengwen
2021-08-03 11:29   ` [dpdk-dev] [PATCH v13 6/6] maintainers: add for dmadev Chengwen Feng
2021-08-03 11:46   ` [dpdk-dev] [PATCH v13 0/6] support dmadev fengchengwen
2021-08-10 11:54 ` [dpdk-dev] [PATCH v14 " Chengwen Feng
2021-08-10 11:54   ` [dpdk-dev] [PATCH v14 1/6] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-08-10 11:54   ` [dpdk-dev] [PATCH v14 2/6] dmadev: introduce DMA device library internal header Chengwen Feng
2021-08-10 11:54   ` [dpdk-dev] [PATCH v14 3/6] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-08-10 11:54   ` [dpdk-dev] [PATCH v14 4/6] dmadev: introduce DMA device library implementation Chengwen Feng
2021-08-10 11:54   ` [dpdk-dev] [PATCH v14 5/6] doc: add DMA device library guide Chengwen Feng
2021-08-10 15:27     ` Walsh, Conor
2021-08-11  0:47       ` fengchengwen
2021-08-13  9:20       ` fengchengwen
2021-08-13 10:12         ` Walsh, Conor
2021-08-10 11:54   ` [dpdk-dev] [PATCH v14 6/6] maintainers: add for dmadev Chengwen Feng
2021-08-13  9:09 ` [dpdk-dev] [PATCH v15 0/6] support dmadev Chengwen Feng
2021-08-13  9:09   ` [dpdk-dev] [PATCH v15 1/6] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-08-19 14:52     ` Bruce Richardson
2021-08-23  3:43       ` fengchengwen
2021-08-13  9:09   ` [dpdk-dev] [PATCH v15 2/6] dmadev: introduce DMA device library internal header Chengwen Feng
2021-08-13  9:09   ` [dpdk-dev] [PATCH v15 3/6] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-08-13  9:09   ` [dpdk-dev] [PATCH v15 4/6] dmadev: introduce DMA device library implementation Chengwen Feng
2021-08-13  9:09   ` [dpdk-dev] [PATCH v15 5/6] doc: add DMA device library guide Chengwen Feng
2021-08-13  9:09   ` [dpdk-dev] [PATCH v15 6/6] maintainers: add for dmadev Chengwen Feng
2021-08-23  3:31 ` [dpdk-dev] [PATCH v16 0/9] support dmadev Chengwen Feng
2021-08-23  3:31   ` [dpdk-dev] [PATCH v16 1/9] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-08-23  3:31   ` [dpdk-dev] [PATCH v16 2/9] dmadev: introduce DMA device library internal header Chengwen Feng
2021-08-23  3:31   ` [dpdk-dev] [PATCH v16 3/9] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-08-23  3:31   ` [dpdk-dev] [PATCH v16 4/9] dmadev: introduce DMA device library implementation Chengwen Feng
2021-08-23  3:31   ` [dpdk-dev] [PATCH v16 5/9] doc: add DMA device library guide Chengwen Feng
2021-08-23  3:31   ` [dpdk-dev] [PATCH v16 6/9] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-08-26 18:39     ` Bruce Richardson
2021-08-23  3:31   ` [dpdk-dev] [PATCH v16 7/9] dma/skeleton: add test cases Chengwen Feng
2021-08-23 14:03     ` Bruce Richardson
2021-08-26  9:30       ` fengchengwen
2021-08-23  3:31   ` [dpdk-dev] [PATCH v16 8/9] test: enable dmadev skeleton test Chengwen Feng
2021-08-23  3:31   ` [dpdk-dev] [PATCH v16 9/9] maintainers: add for dmadev Chengwen Feng
2021-08-28  7:29 ` [dpdk-dev] [PATCH v17 0/8] support dmadev Chengwen Feng
2021-08-28  7:29   ` [dpdk-dev] [PATCH v17 1/8] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-08-28  7:30   ` [dpdk-dev] [PATCH v17 2/8] dmadev: introduce DMA device library internal header Chengwen Feng
2021-08-28  7:30   ` [dpdk-dev] [PATCH v17 3/8] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-08-28  7:30   ` [dpdk-dev] [PATCH v17 4/8] dmadev: introduce DMA device library implementation Chengwen Feng
2021-08-28  7:30   ` [dpdk-dev] [PATCH v17 5/8] doc: add DMA device library guide Chengwen Feng
2021-08-28  7:30   ` [dpdk-dev] [PATCH v17 6/8] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-08-28  7:30   ` [dpdk-dev] [PATCH v17 7/8] app/test: add dmadev API test Chengwen Feng
2021-08-28  7:30   ` [dpdk-dev] [PATCH v17 8/8] maintainers: add for dmadev Chengwen Feng
2021-08-28  8:25     ` fengchengwen
2021-08-30  8:19       ` Bruce Richardson
2021-09-02 10:54 ` [dpdk-dev] [PATCH v18 0/8] support dmadev Chengwen Feng
2021-09-02 10:54   ` [dpdk-dev] [PATCH v18 1/8] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-09-02 10:54   ` [dpdk-dev] [PATCH v18 2/8] dmadev: introduce DMA device library internal header Chengwen Feng
2021-09-02 10:54   ` [dpdk-dev] [PATCH v18 3/8] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-09-02 10:54   ` [dpdk-dev] [PATCH v18 4/8] dmadev: introduce DMA device library implementation Chengwen Feng
2021-09-02 10:54   ` [dpdk-dev] [PATCH v18 5/8] doc: add DMA device library guide Chengwen Feng
2021-09-02 10:54   ` [dpdk-dev] [PATCH v18 6/8] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-09-02 10:54   ` [dpdk-dev] [PATCH v18 7/8] app/test: add dmadev API test Chengwen Feng
2021-09-02 10:54   ` [dpdk-dev] [PATCH v18 8/8] maintainers: add for dmadev Chengwen Feng
2021-09-02 11:51     ` Bruce Richardson
2021-09-02 13:39       ` fengchengwen
2021-09-03 12:59         ` Maxime Coquelin
2021-09-04  7:02           ` fengchengwen
2021-09-06  1:46             ` Li, Xiaoyun
2021-09-06  8:00               ` fengchengwen
2021-09-06  2:03           ` Xia, Chenbo
2021-09-06  8:01             ` fengchengwen
2021-09-02 13:13 ` [dpdk-dev] [PATCH v19 0/7] support dmadev Chengwen Feng
2021-09-02 13:13   ` [dpdk-dev] [PATCH v19 1/7] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-09-03 11:42     ` Gagandeep Singh
2021-09-04  1:31       ` fengchengwen
2021-09-06  6:48         ` Gagandeep Singh
2021-09-06  7:52           ` fengchengwen
2021-09-06  8:06             ` Jerin Jacob
2021-09-06  8:08             ` Bruce Richardson
2021-09-07 12:55             ` fengchengwen
2021-09-03 13:03     ` Bruce Richardson
2021-09-04  3:05       ` fengchengwen
2021-09-04 10:10       ` Morten Brørup
2021-09-03 15:13     ` Kevin Laatz
2021-09-03 15:35     ` Conor Walsh
2021-09-02 13:13   ` [dpdk-dev] [PATCH v19 2/7] dmadev: introduce DMA device library internal header Chengwen Feng
2021-09-03 15:13     ` Kevin Laatz
2021-09-03 15:35     ` Conor Walsh
2021-09-02 13:13   ` [dpdk-dev] [PATCH v19 3/7] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-09-03 15:13     ` Kevin Laatz
2021-09-03 15:35     ` Conor Walsh
2021-09-02 13:13   ` [dpdk-dev] [PATCH v19 4/7] dmadev: introduce DMA device library implementation Chengwen Feng
2021-09-03 15:13     ` Kevin Laatz
2021-09-03 15:30       ` Bruce Richardson
2021-09-03 15:35     ` Conor Walsh
2021-09-04  8:52       ` fengchengwen
2021-09-02 13:13   ` [dpdk-dev] [PATCH v19 5/7] doc: add DMA device library guide Chengwen Feng
2021-09-03 15:13     ` Kevin Laatz
2021-09-02 13:13   ` [dpdk-dev] [PATCH v19 6/7] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-09-03 15:14     ` Kevin Laatz
2021-09-04  7:17       ` fengchengwen
2021-09-03 15:36     ` Conor Walsh
2021-09-02 13:13   ` [dpdk-dev] [PATCH v19 7/7] app/test: add dmadev API test Chengwen Feng
2021-09-02 14:11     ` Walsh, Conor
2021-09-03  0:39       ` fengchengwen
2021-09-03 15:38         ` Walsh, Conor
2021-09-04  7:22           ` fengchengwen
2021-09-03 15:14     ` Kevin Laatz
2021-09-04 10:10 ` [dpdk-dev] [PATCH v20 0/7] support dmadev Chengwen Feng
2021-09-04 10:10   ` [dpdk-dev] [PATCH v20 1/7] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-09-04 10:10   ` [dpdk-dev] [PATCH v20 2/7] dmadev: introduce DMA device library internal header Chengwen Feng
2021-09-06 13:35     ` Bruce Richardson
2021-09-07 13:05       ` fengchengwen
2021-09-04 10:10   ` [dpdk-dev] [PATCH v20 3/7] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-09-04 10:10   ` [dpdk-dev] [PATCH v20 4/7] dmadev: introduce DMA device library implementation Chengwen Feng
2021-09-04 10:10   ` [dpdk-dev] [PATCH v20 5/7] doc: add DMA device library guide Chengwen Feng
2021-09-04 10:17     ` Jerin Jacob
2021-09-04 10:10   ` [dpdk-dev] [PATCH v20 6/7] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-09-04 10:10   ` [dpdk-dev] [PATCH v20 7/7] app/test: add dmadev API test Chengwen Feng
2021-09-06 13:37   ` [dpdk-dev] [PATCH v20 0/7] support dmadev Bruce Richardson
2021-09-07 12:56 ` [dpdk-dev] [PATCH v21 " Chengwen Feng
2021-09-07 12:56   ` [dpdk-dev] [PATCH v21 1/7] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-09-09 10:33     ` Thomas Monjalon
2021-09-09 11:18       ` Bruce Richardson
2021-09-09 11:29         ` Thomas Monjalon
2021-09-09 12:45           ` Bruce Richardson
2021-09-09 13:54             ` fengchengwen
2021-09-09 14:26               ` Thomas Monjalon
2021-09-09 14:31                 ` Bruce Richardson
2021-09-09 14:28               ` Bruce Richardson
2021-09-09 15:12                 ` Morten Brørup
2021-09-09 13:33       ` fengchengwen
2021-09-09 14:19         ` Thomas Monjalon
2021-09-16  3:57       ` fengchengwen
2021-09-07 12:56   ` [dpdk-dev] [PATCH v21 2/7] dmadev: introduce DMA device library internal header Chengwen Feng
2021-09-07 12:56   ` [dpdk-dev] [PATCH v21 3/7] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-09-07 12:56   ` [dpdk-dev] [PATCH v21 4/7] dmadev: introduce DMA device library implementation Chengwen Feng
2021-09-08  9:54     ` Walsh, Conor
2021-09-09 13:25       ` fengchengwen
2021-09-15 13:51     ` Kevin Laatz
2021-09-15 14:34       ` Bruce Richardson
2021-09-15 14:47         ` Kevin Laatz
2021-09-07 12:56   ` [dpdk-dev] [PATCH v21 5/7] doc: add DMA device library guide Chengwen Feng
2021-09-07 12:56   ` [dpdk-dev] [PATCH v21 6/7] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-09-07 12:56   ` [dpdk-dev] [PATCH v21 7/7] app/test: add dmadev API test Chengwen Feng
2021-09-16  3:41 ` [dpdk-dev] [PATCH v22 0/5] support dmadev Chengwen Feng
2021-09-16  3:41   ` [dpdk-dev] [PATCH v22 1/5] dmadev: introduce DMA device library Chengwen Feng
2021-09-16  3:41   ` [dpdk-dev] [PATCH v22 2/5] dmadev: add control plane function support Chengwen Feng
2021-09-16  3:41   ` [dpdk-dev] [PATCH v22 3/5] dmadev: add data " Chengwen Feng
2021-09-16  3:41   ` [dpdk-dev] [PATCH v22 4/5] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-09-16  3:41   ` [dpdk-dev] [PATCH v22 5/5] app/test: add dmadev API test Chengwen Feng
2021-09-24 10:53 ` [dpdk-dev] [PATCH v23 0/6] support dmadev Chengwen Feng
2021-09-24 10:53   ` [dpdk-dev] [PATCH v23 1/6] dmadev: introduce DMA device library Chengwen Feng
2021-10-04 21:12     ` Radha Mohan
2021-10-05  8:24       ` Kevin Laatz
2021-10-05 16:39         ` Radha Mohan
2021-10-08  1:52       ` fengchengwen
2021-10-06 10:26     ` Thomas Monjalon
2021-10-08  7:13       ` fengchengwen
2021-10-08 10:09         ` Thomas Monjalon
2021-09-24 10:53   ` [dpdk-dev] [PATCH v23 2/6] dmadev: add control plane function support Chengwen Feng
2021-10-05 10:16     ` Matan Azrad
2021-10-08  3:28       ` fengchengwen
2021-10-06 10:46     ` Thomas Monjalon
2021-10-08  7:55       ` fengchengwen
2021-10-08 10:18         ` Thomas Monjalon
2021-09-24 10:53   ` [dpdk-dev] [PATCH v23 3/6] dmadev: add data " Chengwen Feng
2021-09-24 10:53   ` [dpdk-dev] [PATCH v23 4/6] dmadev: add multi-process support Chengwen Feng
2021-09-24 10:53   ` [dpdk-dev] [PATCH v23 5/6] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-09-24 10:53   ` [dpdk-dev] [PATCH v23 6/6] app/test: add dmadev API test Chengwen Feng
2021-10-09  9:33 ` [dpdk-dev] [PATCH v24 0/6] support dmadev Chengwen Feng
2021-10-09  9:33   ` [dpdk-dev] [PATCH v24 1/6] dmadev: introduce DMA device library Chengwen Feng
2021-10-09  9:33   ` [dpdk-dev] [PATCH v24 2/6] dmadev: add control plane API support Chengwen Feng
2021-10-09  9:33   ` [dpdk-dev] [PATCH v24 3/6] dmadev: add data " Chengwen Feng
2021-10-09 10:03     ` fengchengwen
2021-10-11 10:40     ` Bruce Richardson
2021-10-11 12:31       ` fengchengwen
2021-10-09  9:33   ` [dpdk-dev] [PATCH v24 4/6] dmadev: add multi-process support Chengwen Feng
2021-10-09  9:33   ` [dpdk-dev] [PATCH v24 5/6] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-10-09  9:33   ` [dpdk-dev] [PATCH v24 6/6] app/test: add dmadev API test Chengwen Feng
2021-10-11  7:33 ` [dpdk-dev] [PATCH v25 0/6] support dmadev Chengwen Feng
2021-10-11  7:33   ` [dpdk-dev] [PATCH v25 1/6] dmadev: introduce DMA device library Chengwen Feng
2021-10-12 19:09     ` Thomas Monjalon
2021-10-13  0:21       ` fengchengwen
2021-10-13  7:41         ` Thomas Monjalon
2021-10-15  8:29           ` Thomas Monjalon
2021-10-15  9:59             ` fengchengwen
2021-10-15 13:46               ` Thomas Monjalon
2021-10-11  7:33   ` [dpdk-dev] [PATCH v25 2/6] dmadev: add control plane API support Chengwen Feng
2021-10-11 15:44     ` Bruce Richardson
2021-10-12  3:57       ` fengchengwen
2021-10-12 18:57     ` Thomas Monjalon
2021-10-11  7:33   ` [dpdk-dev] [PATCH v25 3/6] dmadev: add data " Chengwen Feng
2021-10-11  7:33   ` [dpdk-dev] [PATCH v25 4/6] dmadev: add multi-process support Chengwen Feng
2021-10-11  7:33   ` [dpdk-dev] [PATCH v25 5/6] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-10-11  7:33   ` [dpdk-dev] [PATCH v25 6/6] app/test: add dmadev API test Chengwen Feng
2021-10-13 12:24 ` [dpdk-dev] [PATCH v26 0/6] support dmadev Chengwen Feng
2021-10-13 12:24   ` [dpdk-dev] [PATCH v26 1/6] dmadev: introduce DMA device library Chengwen Feng
2021-10-13 12:24   ` [dpdk-dev] [PATCH v26 2/6] dmadev: add control plane API support Chengwen Feng
2021-10-13 12:24   ` [dpdk-dev] [PATCH v26 3/6] dmadev: add data " Chengwen Feng
2021-10-13 12:24   ` [dpdk-dev] [PATCH v26 4/6] dmadev: add multi-process support Chengwen Feng
2021-10-13 12:24   ` [dpdk-dev] [PATCH v26 5/6] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-10-13 12:25   ` [dpdk-dev] [PATCH v26 6/6] app/test: add dmadev API test Chengwen Feng
2021-10-17 19:17   ` [dpdk-dev] [PATCH v26 0/6] support dmadev Thomas Monjalon

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