Commit 5a3f8d12 authored by Rushil Gupta's avatar Rushil Gupta Committed by David S. Miller
Browse files

gve: update gve.rst 



Add a note about QPL and RDA mode

Signed-off-by: default avatarRushil Gupta <rushilg@google.com>
Reviewed-by: default avatarWillem de Bruijn <willemb@google.com>
Signed-off-by: default avatarPraveen Kaligineedi <pkaligineedi@google.com>
Signed-off-by: default avatarBailey Forrest <bcf@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e7075ab4

Documentation/networking/device_drivers/ethernet/google/gve.rst

+9 −0
Original line number Diff line number Diff line
@@ -52,6 +52,15 @@ Descriptor Formats 
GVE supports two descriptor formats: GQI and DQO. These two formats have

entirely different descriptors, which will be described below.



Addressing Mode

------------------

GVE supports two addressing modes: QPL and RDA.

QPL ("queue-page-list") mode communicates data through a set of

pre-registered pages.



For RDA ("raw DMA addressing") mode, the set of pages is dynamic.

Therefore, the packet buffers can be anywhere in guest memory.



Registers

---------

All registers are MMIO.