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[v1,0/7] vectorize virtio packed ring datapath

Message ID 20200313174230.74661-1-yong.liu@intel.com (mailing list archive)
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Marvin Liu March 13, 2020, 5:42 p.m. UTC 
  This patch set introduced vectorized datapath for packed ring.

The size of packed ring descriptor is 16Bytes. Four batched descriptors
can just placed into one cacheline. AVX512 instructions can well handle
this kind of data. Packed ring TX datapath can fully transformed into
vectorized datapath. Rx datapath also can be vectorized by limiated
features(TSO and mergeable).

Marvin Liu (7):
  net/virtio: add Rx free threshold setting
  net/virtio-user: add LRO parameter
  net/virtio: add vectorized packed ring Rx function
  net/virtio: reuse packed ring xmit functions
  net/virtio: add vectorized packed ring Tx function
  net/virtio: add election for vectorized datapath
  net/virtio: support meson build

 drivers/net/virtio/Makefile                   |  30 +
 drivers/net/virtio/meson.build                |   1 +
 drivers/net/virtio/virtio_ethdev.c            |  35 +-
 drivers/net/virtio/virtio_ethdev.h            |   6 +
 drivers/net/virtio/virtio_pci.h               |   2 +
 drivers/net/virtio/virtio_rxtx.c              | 201 ++----
 drivers/net/virtio/virtio_rxtx_packed_avx.c   | 606 ++++++++++++++++++
 .../net/virtio/virtio_user/virtio_user_dev.c  |   8 +-
 .../net/virtio/virtio_user/virtio_user_dev.h  |   2 +-
 drivers/net/virtio/virtio_user_ethdev.c       |  17 +-
 drivers/net/virtio/virtqueue.h                | 165 ++++-
 11 files changed, 903 insertions(+), 170 deletions(-)
 create mode 100644 drivers/net/virtio/virtio_rxtx_packed_avx.c