OK, thank Bruce
How about next week ?
PS: I still working on V2 and hope it as a basis for discussion.
On 2021/6/23 22:56, Bruce Richardson wrote:
> This is developing into quite a long discussion with multiple threads
> ongoing at the same time. Since it's getting relatively hard to follow (at
>
On Thu, Jun 24, 2021 at 1:29 PM Morten Brørup
wrote:
>
> > From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Jerin Jacob
> > Sent: Thursday, 24 June 2021 09.03
> >
> > On Wed, Jun 23, 2021 at 9:20 AM fengchengwen
> > wrote:
> > >
> >
> > > >
> > > > prototype like the following works for us:
> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Jerin Jacob
> Sent: Thursday, 24 June 2021 09.03
>
> On Wed, Jun 23, 2021 at 9:20 AM fengchengwen
> wrote:
> >
>
> > >
> > > prototype like the following works for us:
> > > rte_dmadev_enq_sg(void **src, void **dest, unsigned int **length,
>
On Wed, Jun 23, 2021 at 9:20 AM fengchengwen wrote:
>
> >>
> >> So I prefer following prototype:
> >> uint16_t rte_dmadev_completed(uint16_t dev_id, dma_cookie_t *cookie,
> >> uint16_t nb_cpls, bool *has_error)
> >> -- nb_cpls: indicate max process operations number
> >> -- has_error:
On Wed, Jun 23, 2021 at 7:50 PM Bruce Richardson
wrote:
>
> On Wed, Jun 23, 2021 at 05:10:22PM +0530, Jerin Jacob wrote:
> > On Wed, Jun 23, 2021 at 3:07 PM Bruce Richardson
> > wrote:
> > >
> > > On Wed, Jun 23, 2021 at 12:51:07PM +0530, Jerin Jacob wrote:
> > > > On Wed, Jun 23, 2021 at 9:00 AM
This is developing into quite a long discussion with multiple threads
ongoing at the same time. Since it's getting relatively hard to follow (at
least for me), can I suggest that we actually hold a call to discuss
"dmadev" and to move things along. Since most of the dicussion participants
I believe
On Wed, Jun 23, 2021 at 05:16:28PM +0530, Jerin Jacob wrote:
> On Wed, Jun 23, 2021 at 3:11 PM Bruce Richardson
> wrote:
> >
> > On Tue, Jun 22, 2021 at 10:55:24PM +0530, Jerin Jacob wrote:
> > > On Fri, Jun 18, 2021 at 3:11 PM fengchengwen
> > > wrote:
> > > >
> > > > On 2021/6/18 13:52, Jerin J
On Wed, Jun 23, 2021 at 05:10:22PM +0530, Jerin Jacob wrote:
> On Wed, Jun 23, 2021 at 3:07 PM Bruce Richardson
> wrote:
> >
> > On Wed, Jun 23, 2021 at 12:51:07PM +0530, Jerin Jacob wrote:
> > > On Wed, Jun 23, 2021 at 9:00 AM fengchengwen
> > > wrote:
> > > >
>
> > > >
> > > > Currently, it i
On Wed, Jun 23, 2021 at 3:11 PM Bruce Richardson
wrote:
>
> On Tue, Jun 22, 2021 at 10:55:24PM +0530, Jerin Jacob wrote:
> > On Fri, Jun 18, 2021 at 3:11 PM fengchengwen
> > wrote:
> > >
> > > On 2021/6/18 13:52, Jerin Jacob wrote:
> > > > On Thu, Jun 17, 2021 at 2:46 PM Bruce Richardson
> > > >
On Wed, Jun 23, 2021 at 3:07 PM Bruce Richardson
wrote:
>
> On Wed, Jun 23, 2021 at 12:51:07PM +0530, Jerin Jacob wrote:
> > On Wed, Jun 23, 2021 at 9:00 AM fengchengwen
> > wrote:
> > >
> > >
> > > Currently, it is hard to define generic dma descriptor, I think the
> > > well-defined
> > > AP
ev@dpdk.org; nipun.gu...@nxp.com; hemant.agra...@nxp.com;
> > maxime.coque...@redhat.com; honnappa.nagaraha...@arm.com;
> > jer...@marvell.com; david.march...@redhat.com; jerinjac...@gmail.com
> > Subject: Re: [dpdk-dev] [RFC PATCH] dmadev: introduce DMA device library
> >
>
On Wed, Jun 23, 2021 at 9:20 AM fengchengwen wrote:
>
> On 2021/6/23 1:51, Jerin Jacob wrote:
> > On Fri, Jun 18, 2021 at 2:22 PM fengchengwen
> > wrote:
> >>
> >> On 2021/6/17 22:18, Bruce Richardson wrote:
> >>> On Thu, Jun 17, 2021 at 12:02:00PM +0100, Bruce Richardson wrote:
> On Thu, J
> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Bruce Richardson
> Sent: Wednesday, 23 June 2021 11.41
>
> [Also, you are not likely to want to offload a small
> copy, are you?]
Maybe. I would consider it for two reasons:
1. To avoid CPU cache pollution. E.g. copy packet data (or part of
On Tue, Jun 22, 2021 at 10:55:24PM +0530, Jerin Jacob wrote:
> On Fri, Jun 18, 2021 at 3:11 PM fengchengwen wrote:
> >
> > On 2021/6/18 13:52, Jerin Jacob wrote:
> > > On Thu, Jun 17, 2021 at 2:46 PM Bruce Richardson
> > > wrote:
> > >>
> > >> On Wed, Jun 16, 2021 at 08:07:26PM +0530, Jerin Jacob
On Wed, Jun 23, 2021 at 12:51:07PM +0530, Jerin Jacob wrote:
> On Wed, Jun 23, 2021 at 9:00 AM fengchengwen wrote:
> >
>
> > >>>
> >
> > > The above will give better performance and is the best trade-off c
> > > between performance and per transfer variables.
> >
> > We may
On Wed, Jun 23, 2021 at 9:00 AM fengchengwen wrote:
>
> >>>
>
> > The above will give better performance and is the best trade-off c
> > between performance and per transfer variables.
>
> We may need to have different APIs for context-aware and context-unaware
> proce
On Wed, Jun 23, 2021 at 12:47 AM Bruce Richardson
wrote:
>
> On Tue, Jun 22, 2021 at 11:01:47PM +0530, Jerin Jacob wrote:
> > On Fri, Jun 18, 2021 at 3:25 PM Bruce Richardson
> > wrote:
> > >
> > > >
> > > Taking the case of a simple copy op, the parameters we need are:
> > >
> > > * src
> > > *
a.nagaraha...@arm.com;
> jer...@marvell.com; david.march...@redhat.com; jerinjac...@gmail.com
> Subject: Re: [dpdk-dev] [RFC PATCH] dmadev: introduce DMA device library
>
> On Wed, Jun 16, 2021 at 05:41:45PM +0800, fengchengwen wrote:
> > On 2021/6/16 0:38, Bruce Richardson wro
On 2021/6/23 1:51, Jerin Jacob wrote:
> On Fri, Jun 18, 2021 at 2:22 PM fengchengwen wrote:
>>
>> On 2021/6/17 22:18, Bruce Richardson wrote:
>>> On Thu, Jun 17, 2021 at 12:02:00PM +0100, Bruce Richardson wrote:
On Thu, Jun 17, 2021 at 05:48:05PM +0800, fengchengwen wrote:
> On 2021/6/17
On 2021/6/23 1:25, Jerin Jacob wrote:
> On Fri, Jun 18, 2021 at 3:11 PM fengchengwen wrote:
>>
>> On 2021/6/18 13:52, Jerin Jacob wrote:
>>> On Thu, Jun 17, 2021 at 2:46 PM Bruce Richardson
>>> wrote:
On Wed, Jun 16, 2021 at 08:07:26PM +0530, Jerin Jacob wrote:
> On Wed, Jun 16, 202
On Tue, Jun 22, 2021 at 11:01:47PM +0530, Jerin Jacob wrote:
> On Fri, Jun 18, 2021 at 3:25 PM Bruce Richardson
> wrote:
> >
> > >
> > Taking the case of a simple copy op, the parameters we need are:
> >
> > * src
> > * dst
> > * length
>
> OK. Is it the case where no other attribute that support
On Fri, Jun 18, 2021 at 2:22 PM fengchengwen wrote:
>
> On 2021/6/17 22:18, Bruce Richardson wrote:
> > On Thu, Jun 17, 2021 at 12:02:00PM +0100, Bruce Richardson wrote:
> >> On Thu, Jun 17, 2021 at 05:48:05PM +0800, fengchengwen wrote:
> >>> On 2021/6/17 1:31, Bruce Richardson wrote:
> On We
On Fri, Jun 18, 2021 at 3:34 PM Bruce Richardson
wrote:
>
> On Fri, Jun 18, 2021 at 10:46:08AM +0530, Jerin Jacob wrote:
> > On Thu, Jun 17, 2021 at 1:30 PM Bruce Richardson
> > wrote:
> > >
> > > On Thu, Jun 17, 2021 at 01:12:22PM +0530, Jerin Jacob wrote:
> > > > On Thu, Jun 17, 2021 at 12:43 A
On Fri, Jun 18, 2021 at 3:25 PM Bruce Richardson
wrote:
>
> On Fri, Jun 18, 2021 at 11:22:28AM +0530, Jerin Jacob wrote:
> > On Thu, Jun 17, 2021 at 2:46 PM Bruce Richardson
> > wrote:
> > >
> > > On Wed, Jun 16, 2021 at 08:07:26PM +0530, Jerin Jacob wrote:
> > > > On Wed, Jun 16, 2021 at 3:47 PM
On Fri, Jun 18, 2021 at 3:11 PM fengchengwen wrote:
>
> On 2021/6/18 13:52, Jerin Jacob wrote:
> > On Thu, Jun 17, 2021 at 2:46 PM Bruce Richardson
> > wrote:
> >>
> >> On Wed, Jun 16, 2021 at 08:07:26PM +0530, Jerin Jacob wrote:
> >>> On Wed, Jun 16, 2021 at 3:47 PM fengchengwen
> >>> wrote:
>
On Fri, Jun 18, 2021 at 10:46:08AM +0530, Jerin Jacob wrote:
> On Thu, Jun 17, 2021 at 1:30 PM Bruce Richardson
> wrote:
> >
> > On Thu, Jun 17, 2021 at 01:12:22PM +0530, Jerin Jacob wrote:
> > > On Thu, Jun 17, 2021 at 12:43 AM Bruce Richardson
> > > wrote:
> > > >
> > > > On Wed, Jun 16, 2021 a
On Fri, Jun 18, 2021 at 11:22:28AM +0530, Jerin Jacob wrote:
> On Thu, Jun 17, 2021 at 2:46 PM Bruce Richardson
> wrote:
> >
> > On Wed, Jun 16, 2021 at 08:07:26PM +0530, Jerin Jacob wrote:
> > > On Wed, Jun 16, 2021 at 3:47 PM fengchengwen
> > > wrote:
> > > >
> > > > On 2021/6/16 15:09, Morten
On 2021/6/18 13:52, Jerin Jacob wrote:
> On Thu, Jun 17, 2021 at 2:46 PM Bruce Richardson
> wrote:
>>
>> On Wed, Jun 16, 2021 at 08:07:26PM +0530, Jerin Jacob wrote:
>>> On Wed, Jun 16, 2021 at 3:47 PM fengchengwen
>>> wrote:
On 2021/6/16 15:09, Morten Brørup wrote:
>> From: dev [m
On Fri, Jun 18, 2021 at 04:52:00PM +0800, fengchengwen wrote:
> On 2021/6/17 22:18, Bruce Richardson wrote:
> > On Thu, Jun 17, 2021 at 12:02:00PM +0100, Bruce Richardson wrote:
> >> On Thu, Jun 17, 2021 at 05:48:05PM +0800, fengchengwen wrote:
> >>> On 2021/6/17 1:31, Bruce Richardson wrote:
> >>>
On 2021/6/17 22:18, Bruce Richardson wrote:
> On Thu, Jun 17, 2021 at 12:02:00PM +0100, Bruce Richardson wrote:
>> On Thu, Jun 17, 2021 at 05:48:05PM +0800, fengchengwen wrote:
>>> On 2021/6/17 1:31, Bruce Richardson wrote:
On Wed, Jun 16, 2021 at 05:41:45PM +0800, fengchengwen wrote:
> On
On Thu, Jun 17, 2021 at 2:46 PM Bruce Richardson
wrote:
>
> On Wed, Jun 16, 2021 at 08:07:26PM +0530, Jerin Jacob wrote:
> > On Wed, Jun 16, 2021 at 3:47 PM fengchengwen
> > wrote:
> > >
> > > On 2021/6/16 15:09, Morten Brørup wrote:
> > > >> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of
On Thu, Jun 17, 2021 at 1:30 PM Bruce Richardson
wrote:
>
> On Thu, Jun 17, 2021 at 01:12:22PM +0530, Jerin Jacob wrote:
> > On Thu, Jun 17, 2021 at 12:43 AM Bruce Richardson
> > wrote:
> > >
> > > On Wed, Jun 16, 2021 at 11:38:08PM +0530, Jerin Jacob wrote:
> > > > On Wed, Jun 16, 2021 at 11:01
On Thu, Jun 17, 2021 at 12:02:00PM +0100, Bruce Richardson wrote:
> On Thu, Jun 17, 2021 at 05:48:05PM +0800, fengchengwen wrote:
> > On 2021/6/17 1:31, Bruce Richardson wrote:
> > > On Wed, Jun 16, 2021 at 05:41:45PM +0800, fengchengwen wrote:
> > >> On 2021/6/16 0:38, Bruce Richardson wrote:
> >
On Thu, Jun 17, 2021 at 05:48:05PM +0800, fengchengwen wrote:
> On 2021/6/17 1:31, Bruce Richardson wrote:
> > On Wed, Jun 16, 2021 at 05:41:45PM +0800, fengchengwen wrote:
> >> On 2021/6/16 0:38, Bruce Richardson wrote:
> >>> On Tue, Jun 15, 2021 at 09:22:07PM +0800, Chengwen Feng wrote:
> Th
On 2021/6/17 1:31, Bruce Richardson wrote:
> On Wed, Jun 16, 2021 at 05:41:45PM +0800, fengchengwen wrote:
>> On 2021/6/16 0:38, Bruce Richardson wrote:
>>> On Tue, Jun 15, 2021 at 09:22:07PM +0800, Chengwen Feng wrote:
This patch introduces 'dmadevice' which is a generic type of DMA
devi
On Wed, Jun 16, 2021 at 08:07:26PM +0530, Jerin Jacob wrote:
> On Wed, Jun 16, 2021 at 3:47 PM fengchengwen wrote:
> >
> > On 2021/6/16 15:09, Morten Brørup wrote:
> > >> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Bruce Richardson
> > >> Sent: Tuesday, 15 June 2021 18.39
> > >>
> > >> On
On Thu, Jun 17, 2021 at 01:12:22PM +0530, Jerin Jacob wrote:
> On Thu, Jun 17, 2021 at 12:43 AM Bruce Richardson
> wrote:
> >
> > On Wed, Jun 16, 2021 at 11:38:08PM +0530, Jerin Jacob wrote:
> > > On Wed, Jun 16, 2021 at 11:01 PM Bruce Richardson
> > > wrote:
> > > >
> > > > On Wed, Jun 16, 2021
On Thu, Jun 17, 2021 at 12:43 AM Bruce Richardson
wrote:
>
> On Wed, Jun 16, 2021 at 11:38:08PM +0530, Jerin Jacob wrote:
> > On Wed, Jun 16, 2021 at 11:01 PM Bruce Richardson
> > wrote:
> > >
> > > On Wed, Jun 16, 2021 at 05:41:45PM +0800, fengchengwen wrote:
> > > > On 2021/6/16 0:38, Bruce Ric
On Wed, Jun 16, 2021 at 11:38:08PM +0530, Jerin Jacob wrote:
> On Wed, Jun 16, 2021 at 11:01 PM Bruce Richardson
> wrote:
> >
> > On Wed, Jun 16, 2021 at 05:41:45PM +0800, fengchengwen wrote:
> > > On 2021/6/16 0:38, Bruce Richardson wrote:
> > > > On Tue, Jun 15, 2021 at 09:22:07PM +0800, Chengwe
On Wed, Jun 16, 2021 at 04:48:59PM +, Honnappa Nagarahalli wrote:
>
>
> >
> > On Wed, Jun 16, 2021 at 02:14:54PM +0200, David Marchand wrote:
> > > On Tue, Jun 15, 2021 at 3:25 PM Chengwen Feng
> > wrote:
> > > > +
> > > > +#define RTE_DMADEV_NAME_MAX_LEN(64)
> > > > +/**< @internal
On Wed, Jun 16, 2021 at 11:01 PM Bruce Richardson
wrote:
>
> On Wed, Jun 16, 2021 at 05:41:45PM +0800, fengchengwen wrote:
> > On 2021/6/16 0:38, Bruce Richardson wrote:
> > > On Tue, Jun 15, 2021 at 09:22:07PM +0800, Chengwen Feng wrote:
> > >> This patch introduces 'dmadevice' which is a generic
On Wed, Jun 16, 2021 at 05:41:45PM +0800, fengchengwen wrote:
> On 2021/6/16 0:38, Bruce Richardson wrote:
> > On Tue, Jun 15, 2021 at 09:22:07PM +0800, Chengwen Feng wrote:
> >> This patch introduces 'dmadevice' which is a generic type of DMA
> >> device.
> >>
> >> The APIs of dmadev library expos
>
> On Wed, Jun 16, 2021 at 02:14:54PM +0200, David Marchand wrote:
> > On Tue, Jun 15, 2021 at 3:25 PM Chengwen Feng
> wrote:
> > > +
> > > +#define RTE_DMADEV_NAME_MAX_LEN(64)
> > > +/**< @internal Max length of name of DMA PMD */
> > > +
> > > +/** @internal
> > > + * The data struct
On Wed, Jun 16, 2021 at 3:47 PM fengchengwen wrote:
>
> On 2021/6/16 15:09, Morten Brørup wrote:
> >> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Bruce Richardson
> >> Sent: Tuesday, 15 June 2021 18.39
> >>
> >> On Tue, Jun 15, 2021 at 09:22:07PM +0800, Chengwen Feng wrote:
> >>> This pat
On Wed, Jun 16, 2021 at 02:14:54PM +0200, David Marchand wrote:
> On Tue, Jun 15, 2021 at 3:25 PM Chengwen Feng wrote:
> > +
> > +#define RTE_DMADEV_NAME_MAX_LEN(64)
> > +/**< @internal Max length of name of DMA PMD */
> > +
> > +/** @internal
> > + * The data structure associated with eac
On Wed, Jun 16, 2021 at 06:17:07PM +0800, fengchengwen wrote:
> On 2021/6/16 15:09, Morten Brørup wrote:
> >> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Bruce Richardson
> >> Sent: Tuesday, 15 June 2021 18.39
> >>
> >> On Tue, Jun 15, 2021 at 09:22:07PM +0800, Chengwen Feng wrote:
> >>> T
On Tue, Jun 15, 2021 at 3:25 PM Chengwen Feng wrote:
> +
> +#define RTE_DMADEV_NAME_MAX_LEN(64)
> +/**< @internal Max length of name of DMA PMD */
> +
> +/** @internal
> + * The data structure associated with each DMA device.
> + */
> +struct rte_dmadev {
> + /**< Device ID for this
> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of fengchengwen
> Sent: Wednesday, 16 June 2021 12.17
>
> On 2021/6/16 15:09, Morten Brørup wrote:
> > I would like to share a couple of ideas for further discussion:
> >
> > 1. API for bulk operations.
> > The ability to prepare a vector of DMA
On 2021/6/16 15:09, Morten Brørup wrote:
>> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Bruce Richardson
>> Sent: Tuesday, 15 June 2021 18.39
>>
>> On Tue, Jun 15, 2021 at 09:22:07PM +0800, Chengwen Feng wrote:
>>> This patch introduces 'dmadevice' which is a generic type of DMA
>>> device
On 2021/6/16 0:38, Bruce Richardson wrote:
> On Tue, Jun 15, 2021 at 09:22:07PM +0800, Chengwen Feng wrote:
>> This patch introduces 'dmadevice' which is a generic type of DMA
>> device.
>>
>> The APIs of dmadev library exposes some generic operations which can
>> enable configuration and I/O with
dhat.com; honnappa.nagaraha...@arm.com; jer...@marvell.com;
> david.march...@redhat.com; jerinjac...@gmail.com; Xia, Chenbo
>
> Subject: Re: [dpdk-dev] [RFC PATCH] dmadev: introduce DMA device library
>
> On Wed, Jun 16, 2021 at 03:17:51AM +0100, Wang, Haiyue wrote:
> > > -
xp.com; hemant.agra...@nxp.com;
> > maxime.coque...@redhat.com;
> > honnappa.nagaraha...@arm.com; jer...@marvell.com;
> > david.march...@redhat.com; Richardson, Bruce
> > ; jerinjac...@gmail.com
> > Subject: [dpdk-dev] [RFC PATCH] dmadev: introduce DMA device library
> >
&g
> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Bruce Richardson
> Sent: Tuesday, 15 June 2021 18.39
>
> On Tue, Jun 15, 2021 at 09:22:07PM +0800, Chengwen Feng wrote:
> > This patch introduces 'dmadevice' which is a generic type of DMA
> > device.
> >
> > The APIs of dmadev library exposes
m; jer...@marvell.com; david.march...@redhat.com;
> Richardson, Bruce
> ; jerinjac...@gmail.com
> Subject: [dpdk-dev] [RFC PATCH] dmadev: introduce DMA device library
>
> This patch introduces 'dmadevice' which is a generic type of DMA
> device.
>
> The APIs of d
On Tue, Jun 15, 2021 at 09:22:07PM +0800, Chengwen Feng wrote:
> This patch introduces 'dmadevice' which is a generic type of DMA
> device.
>
> The APIs of dmadev library exposes some generic operations which can
> enable configuration and I/O with the DMA devices.
>
> Signed-off-by: Chengwen Fen
This patch introduces 'dmadevice' which is a generic type of DMA
device.
The APIs of dmadev library exposes some generic operations which can
enable configuration and I/O with the DMA devices.
Signed-off-by: Chengwen Feng
---
lib/dmadev/rte_dmadev.h | 531 +++
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