Re: [PATCH] net: macb: Add 64 bit addressing support for GEM

[David Miller]

From: Harini Katakam <harini.katakam@xxxxxxxxxx>
Date: Tue, 9 Aug 2016 13:15:53 +0530

> This patch adds support for 64 bit addressing and BDs.
> -> Enable 64 bit addressing in DMACFG register.
> -> Set DMA mask when design config register shows support for 64 bit addr.
> -> Add new BD words for higher address when 64 bit DMA support is present.
> -> Add and update TBQPH and RBQPH for MSB of BD pointers.
> -> Change extraction and updation of buffer addresses to use
> 64 bit address.
> -> In gem_rx extract address in one place insted of two and use a
> separate flag for RXUSED.
> 
> Signed-off-by: Harini Katakam <harinik@xxxxxxxxxx>

It's not the cleanest looking thing in the world with all of these
ifdefs, but I can't suggest anything better, so applied to net-next
thanks.