compat-wireless: fix build of atheros Ethernet drivers.

The Ethernet drivers where converted to a new hw_features netdev
attribute. For kernel < 2.6.39 this does not work.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

diff --git a/patches/40-netdev-hw-features.patch b/patches/40-netdev-hw-features.patch
new file mode 100644 (file)
index 0000000..06c5c1a
--- /dev/null
+++ b/patches/40-netdev-hw-features.patch
@@ -0,0 +1,246 @@
+This reverts the following commit in linux mainline for kernel < 2.6.39: 
+
+commit 782d640afd15af7a1faf01cfe566ca4ac511319d
+Author: Michał Mirosław <mirq-linux@rere.qmqm.pl>
+Date:   Thu Apr 7 07:32:18 2011 +0000
+
+    net: atl*: convert to hw_features
+    
+    Things left as they were:
+     - atl1: is RX checksum really enabled?
+     - atl2: copy-paste from atl1, with-errors-on-modify I presume
+     - atl1c: there's a bug: MTU can't be changed if device is not up
+    
+    Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
+    Signed-off-by: David S. Miller <davem@davemloft.net>
+
+--- a/drivers/net/atl1c/atl1c_ethtool.c
++++ b/drivers/net/atl1c/atl1c_ethtool.c
+@@ -113,6 +113,13 @@ static int atl1c_set_settings(struct net
+       return 0;
+ }
+ 
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
++static u32 atl1c_get_tx_csum(struct net_device *netdev)
++{
++      return (netdev->features & NETIF_F_HW_CSUM) != 0;
++}
++#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)) */
++
+ static u32 atl1c_get_msglevel(struct net_device *netdev)
+ {
+       struct atl1c_adapter *adapter = netdev_priv(netdev);
+@@ -302,6 +309,11 @@ static const struct ethtool_ops atl1c_et
+       .get_link               = ethtool_op_get_link,
+       .get_eeprom_len         = atl1c_get_eeprom_len,
+       .get_eeprom             = atl1c_get_eeprom,
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
++      .get_tx_csum            = atl1c_get_tx_csum,
++      .get_sg                 = ethtool_op_get_sg,
++      .set_sg                 = ethtool_op_set_sg,
++#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)) */
+ };
+ 
+ void atl1c_set_ethtool_ops(struct net_device *netdev)
+--- a/drivers/net/atl1c/atl1c_main.c
++++ b/drivers/net/atl1c/atl1c_main.c
+@@ -489,6 +489,7 @@ static void atl1c_set_rxbufsize(struct a
+               roundup(mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN, 8) : AT_RX_BUF_SIZE;
+ }
+ 
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
+ static u32 atl1c_fix_features(struct net_device *netdev, u32 features)
+ {
+       if (netdev->mtu > MAX_TSO_FRAME_SIZE)
+@@ -496,6 +497,7 @@ static u32 atl1c_fix_features(struct net
+ 
+       return features;
+ }
++#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) */
+ 
+ /*
+  * atl1c_change_mtu - Change the Maximum Transfer Unit
+@@ -523,8 +525,19 @@ static int atl1c_change_mtu(struct net_d
+               netdev->mtu = new_mtu;
+               adapter->hw.max_frame_size = new_mtu;
+               atl1c_set_rxbufsize(adapter, netdev);
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
++              if (new_mtu > MAX_TSO_FRAME_SIZE) {
++                      adapter->netdev->features &= ~NETIF_F_TSO;
++                      adapter->netdev->features &= ~NETIF_F_TSO6;
++              } else {
++                      adapter->netdev->features |= NETIF_F_TSO;
++                      adapter->netdev->features |= NETIF_F_TSO6;
++              }
++#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)) */
+               atl1c_down(adapter);
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
+               netdev_update_features(netdev);
++#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) */
+               atl1c_up(adapter);
+               clear_bit(__AT_RESETTING, &adapter->flags);
+               if (adapter->hw.ctrl_flags & ATL1C_FPGA_VERSION) {
+@@ -2590,7 +2603,9 @@ static const struct net_device_ops atl1c
+       .ndo_set_mac_address    = atl1c_set_mac_addr,
+       .ndo_set_multicast_list = atl1c_set_multi,
+       .ndo_change_mtu         = atl1c_change_mtu,
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
+       .ndo_fix_features       = atl1c_fix_features,
++#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) */
+       .ndo_do_ioctl           = atl1c_ioctl,
+       .ndo_tx_timeout         = atl1c_tx_timeout,
+       .ndo_get_stats          = atl1c_get_stats,
+@@ -2611,6 +2626,7 @@ static int atl1c_init_netdev(struct net_
+       atl1c_set_ethtool_ops(netdev);
+ 
+       /* TODO: add when ready */
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
+       netdev->hw_features =   NETIF_F_SG         |
+                               NETIF_F_HW_CSUM    |
+                               NETIF_F_HW_VLAN_TX |
+@@ -2618,6 +2634,14 @@ static int atl1c_init_netdev(struct net_
+                               NETIF_F_TSO6;
+       netdev->features =      netdev->hw_features |
+                               NETIF_F_HW_VLAN_RX;
++#else
++      netdev->features =      NETIF_F_SG         |
++                              NETIF_F_HW_CSUM    |
++                              NETIF_F_HW_VLAN_TX |
++                              NETIF_F_HW_VLAN_RX |
++                              NETIF_F_TSO        |
++                              NETIF_F_TSO6;
++#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) */
+       return 0;
+ }
+ 
+--- a/drivers/net/atl1e/atl1e_ethtool.c
++++ b/drivers/net/atl1e/atl1e_ethtool.c
+@@ -382,6 +382,11 @@ static const struct ethtool_ops atl1e_et
+       .get_eeprom_len         = atl1e_get_eeprom_len,
+       .get_eeprom             = atl1e_get_eeprom,
+       .set_eeprom             = atl1e_set_eeprom,
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
++      .set_tx_csum            = ethtool_op_set_tx_hw_csum,
++      .set_sg                 = ethtool_op_set_sg,
++      .set_tso                = ethtool_op_set_tso,
++#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)) */
+ };
+ 
+ void atl1e_set_ethtool_ops(struct net_device *netdev)
+--- a/drivers/net/atl1e/atl1e_main.c
++++ b/drivers/net/atl1e/atl1e_main.c
+@@ -1929,7 +1929,11 @@ void atl1e_down(struct atl1e_adapter *ad
+        * reschedule our watchdog timer */
+       set_bit(__AT_DOWN, &adapter->flags);
+ 
++#if defined(NETIF_F_LLTX) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
+       netif_stop_queue(netdev);
++#else
++      netif_tx_disable(netdev);
++#endif
+ 
+       /* reset MAC to disable all RX/TX */
+       atl1e_reset_hw(&adapter->hw);
+@@ -2221,10 +2225,17 @@ static int atl1e_init_netdev(struct net_
+       netdev->watchdog_timeo = AT_TX_WATCHDOG;
+       atl1e_set_ethtool_ops(netdev);
+ 
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
+       netdev->hw_features = NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_TSO |
+               NETIF_F_HW_VLAN_TX;
+       netdev->features = netdev->hw_features |
+               NETIF_F_HW_VLAN_RX | NETIF_F_LLTX;
++#else
++      netdev->features = NETIF_F_SG | NETIF_F_HW_CSUM |
++              NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
++      netdev->features |= NETIF_F_LLTX;
++      netdev->features |= NETIF_F_TSO;
++#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) */
+ 
+       return 0;
+ }
+--- a/drivers/net/atlx/atl1.c
++++ b/drivers/net/atlx/atl1.c
+@@ -2986,10 +2986,12 @@ static int __devinit atl1_probe(struct p
+       netdev->features |= NETIF_F_SG;
+       netdev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX);
+ 
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
+       netdev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG | NETIF_F_TSO;
+ 
+       /* is this valid? see atl1_setup_mac_ctrl() */
+       netdev->features |= NETIF_F_RXCSUM;
++#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) */
+ 
+       /*
+        * patch for some L1 of old version,
+@@ -3605,6 +3607,14 @@ static int atl1_set_pauseparam(struct ne
+       return 0;
+ }
+ 
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
++/* FIXME: is this right? -- CHS */
++static u32 atl1_get_rx_csum(struct net_device *netdev)
++{
++      return 1;
++}
++#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)) */
++
+ static void atl1_get_strings(struct net_device *netdev, u32 stringset,
+       u8 *data)
+ {
+@@ -3677,4 +3687,10 @@ static const struct ethtool_ops atl1_eth
+       .nway_reset             = atl1_nway_reset,
+       .get_ethtool_stats      = atl1_get_ethtool_stats,
+       .get_sset_count         = atl1_get_sset_count,
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
++      .get_rx_csum            = atl1_get_rx_csum,
++      .set_tx_csum            = ethtool_op_set_tx_hw_csum,
++      .set_sg                 = ethtool_op_set_sg,
++      .set_tso                = ethtool_op_set_tso,
++#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)) */
+ };
+--- a/drivers/net/atlx/atl2.c
++++ b/drivers/net/atlx/atl2.c
+@@ -1415,8 +1415,12 @@ static int __devinit atl2_probe(struct p
+ 
+       err = -EIO;
+ 
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
+       netdev->hw_features = NETIF_F_SG;
++#endif
++#if defined(NETIF_F_HW_VLAN_TX) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
+       netdev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX);
++#endif
+ 
+       /* Init PHY as early as possible due to power saving issue  */
+       atl2_phy_init(&adapter->hw);
+@@ -1843,6 +1847,13 @@ static int atl2_set_settings(struct net_
+       return 0;
+ }
+ 
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
++static u32 atl2_get_tx_csum(struct net_device *netdev)
++{
++      return (netdev->features & NETIF_F_HW_CSUM) != 0;
++}
++#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)) */
++
+ static u32 atl2_get_msglevel(struct net_device *netdev)
+ {
+       return 0;
+@@ -2110,6 +2121,14 @@ static const struct ethtool_ops atl2_eth
+       .get_eeprom_len         = atl2_get_eeprom_len,
+       .get_eeprom             = atl2_get_eeprom,
+       .set_eeprom             = atl2_set_eeprom,
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
++      .get_tx_csum            = atl2_get_tx_csum,
++      .get_sg                 = ethtool_op_get_sg,
++      .set_sg                 = ethtool_op_set_sg,
++#ifdef NETIF_F_TSO
++      .get_tso                = ethtool_op_get_tso,
++#endif
++#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)) */
+ };
+ 
+ static void atl2_set_ethtool_ops(struct net_device *netdev)