From: Matthew Vick <matthew.vick@intel.com>
Date: Fri, 16 Mar 2012 09:02:59 +0000 (+0000)
Subject: e1000e: Enable DMA Burst Mode on 82574 by default.
X-Git-Tag: firefly_0821_release~3680^2~2787^2~248^2~4
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=2cb7a9cc008c25dc03314de563c00c107b3e5432;p=firefly-linux-kernel-4.4.55.git
e1000e: Enable DMA Burst Mode on 82574 by default.
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>
---
diff --git a/drivers/net/ethernet/intel/e1000e/82571.c b/drivers/net/ethernet/intel/e1000e/82571.c
index 609c18cb300a..d0ea316731fc 100644
--- a/drivers/net/ethernet/intel/e1000e/82571.c
+++ b/drivers/net/ethernet/intel/e1000e/82571.c
@@ -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,