e1000e: specify max supported frame size in adapter struct

By putting the maximum frame size supported by the hardware into the
adapter structure, the change_mtu entry point function can be cleaned
up of checks for all the different max frame sizes supported by

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/e1000e/e1000.h b/drivers/net/e1000e/e1000.h
index f37360aa12a8..b9dc612082e0 100644
--- a/drivers/net/e1000e/e1000.h
+++ b/drivers/net/e1000e/e1000.h
@@ -96,6 +96,8 @@ struct e1000_info;
 /* Number of packet split data buffers (not including the header buffer) */
 #define PS_PAGE_BUFFERS                 (MAX_PS_BUFFERS - 1)
 
+#define DEFAULT_JUMBO                   9234
+
 enum e1000_boards {
         board_82571,
         board_82572,
@@ -293,6 +295,7 @@ struct e1000_adapter {
         u32 eeprom_wol;
         u32 wol;
         u32 pba;
+        u32 max_hw_frame_size;
 
         bool fc_autoneg;
 
@@ -309,6 +312,7 @@ struct e1000_info {
         unsigned int            flags;
         unsigned int            flags2;
         u32                     pba;
+        u32                     max_hw_frame_size;
         s32                     (*get_variants)(struct e1000_adapter *);
         struct e1000_mac_operations *mac_ops;
         struct e1000_phy_operations *phy_ops;