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[v3,0/3] Missing barriers and VIRTIO_F_ORDER_PLATFORM.

Message ID 20190109145015.3010-1-i.maximets@samsung.com (mailing list archive)
Headers

Message

Ilya Maximets Jan. 9, 2019, 2:50 p.m. UTC 
  Version 3:
  * Added 2 patches with fixes for current virtio driver.
    Not directly connected with the new feature.

Version 2:
  * rebased on current master (packed rings).

RFC --> Version 1:
  * Dropped vendor-specific hack to determine if we need real barriers.
  * Added VIRTIO_F_ORDER_PLATFORM feature definition and checking.

Note: Patch to change the name of the feature from VIRTIO_F_IO_BARRIER
      to VIRTIO_F_ORDER_PLATFORM is not merged yet:
      https://www.mail-archive.com/virtio-dev@lists.oasis-open.org/msg04114.html

Ilya Maximets (3):
  net/virtio: add missing barrier before reading the flags
  net/virtio: update memory ordering comment for vq notify
  net/virtio: add platform memory ordering feature support

 drivers/net/virtio/virtio_ethdev.c |  2 ++
 drivers/net/virtio/virtio_ethdev.h |  3 +-
 drivers/net/virtio/virtio_pci.h    |  7 ++++
 drivers/net/virtio/virtio_rxtx.c   | 16 ++++-----
 drivers/net/virtio/virtqueue.h     | 56 +++++++++++++++++++++++-------
 5 files changed, 63 insertions(+), 21 deletions(-)