From 1648a23fa159e5c433aac06dc5e0d9db36146016 Mon Sep 17 00:00:00 2001
From: Daniel Pieczko <dpieczko@solarflare.com>
Date: Wed, 13 Feb 2013 10:54:41 +0000
Subject: [PATCH] sfc: allocate more RX buffers per page

Allocating 2 buffers per page is insanely inefficient when MTU is 1500
and PAGE_SIZE is 64K (as it usually is on POWER).  Allocate as many as
we can fit, and choose the refill batch size at run-time so that we
still always use a whole page at once.

[bwh: Fix loop condition to allow for compound pages; rebase]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
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