From: Bruce Allan <bruce.w.allan@intel.com>
Date: Fri, 21 Jun 2013 09:07:07 +0000 (+0000)
Subject: e1000e: low throughput using 4K jumbos on I218
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ce345e082ee305fc7f2435630a7497ab85d30af6;p=linux-beck.git

e1000e: low throughput using 4K jumbos on I218

Alter the packet buffer allocation accordingly.

Signed-off-by: Bruce Allan <bruce.w.allan@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/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 99596a63b6d0..51b05feb1fbf 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -3819,6 +3819,8 @@ void e1000e_reset(struct e1000_adapter *adapter)
 			break;
 		}
 
+		pba = 14;
+		ew32(PBA, pba);
 		fc->high_water = ((pba << 10) * 9 / 10) & E1000_FCRTH_RTH;
 		fc->low_water = ((pba << 10) * 8 / 10) & E1000_FCRTL_RTL;
 		break;