[PATCH] ixgb: Set RXDCTL:PTHRESH/HTHRESH to zero

Set RXDCTL:PTHRESH/HTHRESH to zero

Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index 097b90ccf575b2d17e8f6f67458bcd6003dba96c..492783be205e203e5f26027e082914aa915096ba 100644 (file)
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -145,10 +145,12 @@ MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 
 /* some defines for controlling descriptor fetches in h/w */
-#define RXDCTL_PTHRESH_DEFAULT 128     /* chip considers prefech below this */
-#define RXDCTL_HTHRESH_DEFAULT 16      /* chip will only prefetch if tail is 
-                                          pushed this many descriptors from head */
 #define RXDCTL_WTHRESH_DEFAULT 16      /* chip writes back at this many or RXT0 */
+#define RXDCTL_PTHRESH_DEFAULT 0               /* chip considers prefech below
+                                                * this */
+#define RXDCTL_HTHRESH_DEFAULT 0               /* chip will only prefetch if tail
+                                                * is pushed this many descriptors
+                                                * from head */
 
 /**
  * ixgb_init_module - Driver Registration Routine