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authorAuke Kok <auke\-jan.h.kok@intel.com>2006-11-01 08:47:39 -0800
committerJeff Garzik <jeff@garzik.org>2006-12-02 00:11:59 -0500
commit21c4d5e07859a6fc0f62be37da15b161e142c8d1 (patch)
treebf4c3810c1c7a458f4c912c7b6da42bf843616c8 /drivers
parent87ca4e5b8d729fc157a0a599d78ccab245fc0602 (diff)
downloadlinux-21c4d5e07859a6fc0f62be37da15b161e142c8d1.tar.gz
e1000: Enble early receive (ERT) on 82573
Enable early receives on 82573 for jumbo frame performance. Jumbo's are only supported on 82573L with ASPM disabled. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/e1000/e1000_main.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 38ee39e570ea33..93b97c6b8a6320 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -1934,6 +1934,12 @@ e1000_configure_rx(struct e1000_adapter *adapter)
E1000_WRITE_REG(hw, RXCSUM, rxcsum);
}
+ /* enable early receives on 82573, only takes effect if using > 2048
+ * byte total frame size. for example only for jumbo frames */
+#define E1000_ERT_2048 0x100
+ if (hw->mac_type == e1000_82573)
+ E1000_WRITE_REG(hw, ERT, E1000_ERT_2048);
+
/* Enable Receives */
E1000_WRITE_REG(hw, RCTL, rctl);
}