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, 8 insertions, 0 deletions

diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c
index 6d1aab6316ba..b63d9878b0ac 100644
--- a/drivers/net/e1000e/ich8lan.c
+++ b/drivers/net/e1000e/ich8lan.c
@@ -382,6 +382,11 @@ static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
         if (rc)
                 return rc;
 
+        if (adapter->hw.phy.type == e1000_phy_ife) {
+                adapter->flags &= ~FLAG_HAS_JUMBO_FRAMES;
+                adapter->max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN;
+        }
+
         if ((adapter->hw.mac.type == e1000_ich8lan) &&
             (adapter->hw.phy.type == e1000_phy_igp_3))
                 adapter->flags |= FLAG_LSC_GIG_SPEED_DROP;
@@ -2595,6 +2600,7 @@ struct e1000_info e1000_ich8_info = {
                                   | FLAG_HAS_FLASH
                                   | FLAG_APME_IN_WUC,
         .pba                    = 8,
+        .max_hw_frame_size      = ETH_FRAME_LEN + ETH_FCS_LEN,
         .get_variants           = e1000_get_variants_ich8lan,
         .mac_ops                = &ich8_mac_ops,
         .phy_ops                = &ich8_phy_ops,
@@ -2613,6 +2619,7 @@ struct e1000_info e1000_ich9_info = {
                                   | FLAG_HAS_FLASH
                                   | FLAG_APME_IN_WUC,
         .pba                    = 10,
+        .max_hw_frame_size      = DEFAULT_JUMBO,
         .get_variants           = e1000_get_variants_ich8lan,
         .mac_ops                = &ich8_mac_ops,
         .phy_ops                = &ich8_phy_ops,
@@ -2631,6 +2638,7 @@ struct e1000_info e1000_ich10_info = {
                                   | FLAG_HAS_FLASH
                                   | FLAG_APME_IN_WUC,
         .pba                    = 10,
+        .max_hw_frame_size      = DEFAULT_JUMBO,
         .get_variants           = e1000_get_variants_ich8lan,
         .mac_ops                = &ich8_mac_ops,
         .phy_ops                = &ich8_phy_ops,