Re: [PATCH net-next] liquidio: replace info-pointer mode with buffer-pointer-only mode

[David Miller <davem@davemloft.net>]

From: Felix Manlunas <felix.manlunas@cavium.com>
Date: Sun, 18 Jun 2017 05:04:11 -0700

> From: Prasad Kanneganti <prasad.kanneganti@cavium.com>
> 
> Each Octeon output ring can DMA packets to host memory in two modes:  info-
> pointer mode and buffer-pointer-only mode.  In info-pointer mode, Octeon
> takes two buffer pointers for each packet and places the length of the
> packet along with specified number of bytes from the beginning of the
> packet into one buffer and the rest of the packet in a separate buffer.  In
> buffer-pointer-only mode, Octeon takes single buffer pointer and places the
> length of the packet at the beginning of the buffer followed by the packet
> data.
> 
> This patch switches all Octeon output rings from info-pointer mode to
> buffer-pointer-only mode.  This results in fewer DMA setups and cache line
> snoops.
> 
> Signed-off-by: Prasad Kanneganti <pkanneganti@cavium.com>
> Signed-off-by: Derek Chickles <derek.chickles@cavium.com>
> Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>

Applied.