e1000e: lower ring minimum size to 64

The lower limit of 80 descriptors in the ring is only valid for
one older 8254x chipset. All e1000e devices can use as low as
64 descriptors.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index f6835c3..38bfd0d 100644 (file)
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -64,11 +64,11 @@ struct e1000_info;
 /* Tx/Rx descriptor defines */
 #define E1000_DEFAULT_TXD              256
 #define E1000_MAX_TXD                  4096
-#define E1000_MIN_TXD                  80
+#define E1000_MIN_TXD                  64
 
 #define E1000_DEFAULT_RXD              256
 #define E1000_MAX_RXD                  4096
-#define E1000_MIN_RXD                  80
+#define E1000_MIN_RXD                  64
 
 #define E1000_MIN_ITR_USECS            10 /* 100000 irq/sec */
 #define E1000_MAX_ITR_USECS            10000 /* 100    irq/sec */