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(parent: 5202ce9) | patch
net/mlx4_en: Add __GFP_COLD gfp flags in alloc_pages
authorIdo Shamay <idos@mellanox.com>
Sun, 2 Nov 2014 14:26:16 +0000 (16:26 +0200)
committerDavid S. Miller <davem@davemloft.net>
Mon, 3 Nov 2014 17:28:13 +0000 (12:28 -0500)
commit0e623d8483fbe2b6881eb13177359d746380c263
tree812cce5270264fb408b2e1d0d60db86ff3668eb7tree | snapshot
parent5202ce9eadc7f787cc770a573c6d04b7b2dd84f1commit | diff
net/mlx4_en: Add __GFP_COLD gfp flags in alloc_pages

Needed in order to get cache cold pages (L3 flushed) for HW scatter.

Otherwise memory may flush those entries when the packet comes from
PCI, causing back pressure resulting in BW decrease.

Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/mellanox/mlx4/en_rx.c diff | blob | history
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