[dpdk-dev] [PATCH v2 00/15] vhost: clean-up and simplify async implementation

[Maxime Coquelin]

On 10/26/21 18:28, Maxime Coquelin wrote:
> This series aims at cleaning and simplifying the async
> enqueue path. I think it makes the code easier to
> understand, and is necessary before integrating new
> changes.
> 
> I may have more reworks to propose in next revisions,
> but I wanted to share my current status early so that
> you have time to review/test it.
> 
> It is only compile-tested, as I don't have HW with IOAT
> support to test it.
> 
> Changes in v2:
> ==============
> - Print once when max number of iovec is reached (Jiayu)
> - Increase number of IOVECs from 512 to 2048 (Jiayu)
> - Fix Vhost example build when raw/ioat is disabled
> 
> Changes in v1:
> ==============
> - Fix missing iovec index increment (Jiayu)
> - Remove unneeded sanity check on IOV iter index (Jiayu)
> - Fix async->pkts_info allocation check (Jiayu)
> - Prevent NULL pointer dereference on async metadata cleanup (Jiayu)
> 
> *** BLURB HERE ***
> 
> Maxime Coquelin (15):
>    vhost: move async data in a dedicated structure
>    vhost: hide inflight async structure
>    vhost: simplify async IO vectors
>    vhost: simplify async IO vectors iterators
>    vhost: remove async batch threshold
>    vhost: introduce specific iovec structure
>    vhost: remove useless fields in async iterator struct
>    vhost: improve IO vector logic
>    vhost: remove notion of async descriptor
>    vhost: simplify async enqueue completion
>    vhost: simplify getting the first in-flight index
>    vhost: prepare async for mbuf to desc refactoring
>    vhost: prepare sync for mbuf to desc refactoring
>    vhost: merge sync and async mbuf to desc filling
>    vhost: increase number of async IO vectors
> 
>   examples/vhost/ioat.c       |  30 +-
>   examples/vhost/ioat.h       |   4 +-
>   lib/vhost/rte_vhost_async.h |  42 +--
>   lib/vhost/vhost.c           | 130 +++----
>   lib/vhost/vhost.h           |  67 ++--
>   lib/vhost/vhost_user.c      |   4 +-
>   lib/vhost/virtio_net.c      | 697 ++++++++++++++----------------------
>   7 files changed, 382 insertions(+), 592 deletions(-)
> 


Applied to dpdk-next-virtio/main.

Thanks,
Maxime