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e1000e: Enable DMA Burst Mode on 82574 by default.

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Performance testing has shown that enabling DMA burst on 82574
improves performance on small packets, so enable it by default.

Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Matthew Vick 2012-03-16 09:02:59 +00:00 committed by Jeff Kirsher
parent 1c1093a44f
commit 2cb7a9cc00
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/intel/e1000e/82571.c
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@ -2062,7 +2062,8 @@ const struct e1000_info e1000_82574_info = {
| FLAG_HAS_CTRLEXT_ON_LOAD,
.flags2 = FLAG2_CHECK_PHY_HANG
| FLAG2_DISABLE_ASPM_L0S
| FLAG2_NO_DISABLE_RX,
| FLAG2_NO_DISABLE_RX
| FLAG2_DMA_BURST,
.pba = 32,
.max_hw_frame_size = DEFAULT_JUMBO,
.get_variants = e1000_get_variants_82571,