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Commit ed5c2b0b authored by Bruce Allan's avatar Bruce Allan Committed by Jeff Kirsher
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e1000e: 82574/82583 performance improvement 



Increasing the transmit fifo by 4K (by decreasing the receive fifo size
specified in .pba by the same amount) increases Tx performance.

Signed-off-by: default avatarBruce Allan <bruce.w.allan@intel.com>
Tested-by: default avatarEmil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent a82a14f4

drivers/net/e1000e/82571.c

+2 −2
Original line number Diff line number Diff line
@@ -2005,7 +2005,7 @@ struct e1000_info e1000_82574_info = { 
				  | FLAG_HAS_AMT

				  | FLAG_HAS_CTRLEXT_ON_LOAD,

	.flags2			  = FLAG2_CHECK_PHY_HANG,

	.pba			= 36,

	.pba			= 32,

	.max_hw_frame_size	= DEFAULT_JUMBO,

	.get_variants		= e1000_get_variants_82571,

	.mac_ops		= &e82571_mac_ops,
@@ -2022,7 +2022,7 @@ struct e1000_info e1000_82583_info = { 
				  | FLAG_HAS_SMART_POWER_DOWN

				  | FLAG_HAS_AMT

				  | FLAG_HAS_CTRLEXT_ON_LOAD,

	.pba			= 36,

	.pba			= 32,

	.max_hw_frame_size	= ETH_FRAME_LEN + ETH_FCS_LEN,

	.get_variants		= e1000_get_variants_82571,

	.mac_ops		= &e82571_mac_ops,