[V4,0/2] vDPA/ifcvf: implement doorbell mapping feature

Message

Zhu, Lingshan June 2, 2021, 8:39 a.m. UTC

This series implements doorbell mapping feature for ifcvf.

Please help review

Thanks!

Changes from V3:
remove the warning for doorbell non-page-alignment(Jason)

Changes from V2:
assign notify_off_multiplier to notification.size first than use PAGE_SIZE directly(Jason)

Chagnes from V1:
calculate the doorbell address per vq than per device(Jason) let upper layer driver decide how to use the non page_size aligned doorbell(Jason)

Zhu Lingshan (2):
  vDPA/ifcvf: record virtio notify base
  vDPA/ifcvf: implement doorbell mapping for ifcvf

 drivers/vdpa/ifcvf/ifcvf_base.c |  4 ++++
 drivers/vdpa/ifcvf/ifcvf_base.h |  2 ++
 drivers/vdpa/ifcvf/ifcvf_main.c | 18 ++++++++++++++++++
 3 files changed, 24 insertions(+)