[dpdk-dev] [RFC UPDATE PATCH 0/9] dmadev rfc suggested updates

[fengchengwen]

LGTM, thanks

And I'am prepare dmadev V2, include:
a) Fix code review comments (e.g. multiple-process support, doxygen, comments, typo)
b) Flatten device abstraction to two layer: dmadev <> vchan
c) Public API use dev_id and vchan_id to locate one vchan
d) Using the flags parameter instead of the fence API
e) Rename rte_dmadev_perform to rte_dmadev_submit so it corresponds to the stats variable.

PS: Some code (lib/dmadev) will rebase this patchset


On 2021/7/7 4:28, Bruce Richardson wrote:
> This patchset contains a series of changes to dmadev based on work being done to
> port over our drivers to test this new infrastructure. Some of these are bug
> fixes to enable compilation e.g. missing exports or meson.build files, while
> others are suggested changes to enhance the API. All these patches are to be
> applied on top of [1] as they are mostly suggested changes to that RFC i.e.
> patches to the patch!
> 
> The final patch includes some basic sanity tests for copy operations that we
> have ported over from the ioat self-tests to use the dmadev APIs. The basic
> dataplane part of those tests is probably ok for now, but the initialization of
> queues in that test code may need some enhancement. Feedback welcome.
> 
> A tree with all these patches applied can be got at [2] if anyone wants to use
> that as a basis for working on drivers, or for other discussion.
> 
> [1] http://patches.dpdk.org/project/dpdk/patch/1625231891-2963-1-git-send-email-fengchengwen@huawei.com/
> [2] https://github.com/bruce-richardson/dpdk/tree/dmadev-rfcs
> 
> Bruce Richardson (9):
>   dmadev: add missing exports
>   dmadev: change virtual addresses to IOVA
>   dmadev: add dump function
>   dmadev: remove xstats functions
>   dmadev: drop cookie typedef
>   dmadev: allow NULL parameters to completed ops call
>   dmadev: stats structure updates
>   drivers: add dma driver category
>   app/test: add basic dmadev unit test
> 
>  app/test/meson.build         |   2 +
>  app/test/test_dmadev.c       | 320 +++++++++++++++++++++++++++++++++++
>  drivers/dma/meson.build      |  11 ++
>  drivers/meson.build          |   1 +
>  lib/dmadev/rte_dmadev.c      |  66 ++------
>  lib/dmadev/rte_dmadev.h      | 204 +++++++---------------
>  lib/dmadev/rte_dmadev_core.h |  16 +-
>  lib/dmadev/rte_dmadev_pmd.h  |  24 +--
>  lib/dmadev/version.map       |   7 +-
>  9 files changed, 425 insertions(+), 226 deletions(-)
>  create mode 100644 app/test/test_dmadev.c
>  create mode 100644 drivers/dma/meson.build
> 
> --
> 2.30.2
> 
> 
> .
>