sfc: Allow for additional checksum offload features

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 21 insertions, 2 deletions

diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 4fe6d635ef3b..c49d364ebdbd 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -2179,7 +2179,7 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev,
         net_dev = alloc_etherdev(sizeof(*efx));
         if (!net_dev)
                 return -ENOMEM;
-        net_dev->features |= (NETIF_F_IP_CSUM | NETIF_F_SG |
+        net_dev->features |= (type->offload_features | NETIF_F_SG |
                               NETIF_F_HIGHDMA | NETIF_F_TSO |
                               NETIF_F_GRO);
         /* Mask for features that also apply to VLAN devices */
diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index 08a9db993743..0a79ec7d45ee 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -468,6 +468,19 @@ static void efx_ethtool_get_stats(struct net_device *net_dev,
         }
 }
 
+static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
+{
+        struct efx_nic *efx = netdev_priv(net_dev);
+        unsigned long features = efx->type->offload_features & NETIF_F_ALL_CSUM;
+
+        if (enable)
+                net_dev->features |= features;
+        else
+                net_dev->features &= ~features;
+
+        return 0;
+}
+
 static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
 {
         struct efx_nic *efx = netdev_priv(net_dev);
@@ -813,7 +826,8 @@ const struct ethtool_ops efx_ethtool_ops = {
         .get_rx_csum            = efx_ethtool_get_rx_csum,
         .set_rx_csum            = efx_ethtool_set_rx_csum,
         .get_tx_csum            = ethtool_op_get_tx_csum,
-        .set_tx_csum            = ethtool_op_set_tx_csum,
+        /* Need to enable/disable IPv6 too */
+        .set_tx_csum            = efx_ethtool_set_tx_csum,
         .get_sg                 = ethtool_op_get_sg,
         .set_sg                 = ethtool_op_set_sg,
         .get_tso                = ethtool_op_get_tso,
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 950de847d22b..f77bbbeacb60 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -3304,6 +3304,7 @@ struct efx_nic_type falcon_a1_nic_type = {
         .phys_addr_channels = 4,
         .tx_dc_base = 0x130000,
         .rx_dc_base = 0x100000,
+        .offload_features = NETIF_F_IP_CSUM,
         .reset_world_flags = ETH_RESET_IRQ,
 };
 
@@ -3351,6 +3352,7 @@ struct efx_nic_type falcon_b0_nic_type = {
                                    * channels */
         .tx_dc_base = 0x130000,
         .rx_dc_base = 0x100000,
+        .offload_features = NETIF_F_IP_CSUM,
         .reset_world_flags = ETH_RESET_IRQ,
 };
 
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index e1534ba6ad79..96d3f00df645 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -864,6 +864,8 @@ static inline const char *efx_dev_name(struct efx_nic *efx)
  *      descriptors
  * @tx_dc_base: Base address in SRAM of TX queue descriptor caches
  * @rx_dc_base: Base address in SRAM of RX queue descriptor caches
+ * @offload_features: net_device feature flags for protocol offload
+ *      features implemented in hardware
  * @reset_world_flags: Flags for additional components covered by
  *      reset method RESET_TYPE_WORLD
  */
@@ -904,6 +906,7 @@ struct efx_nic_type {
         unsigned int phys_addr_channels;
         unsigned int tx_dc_base;
         unsigned int rx_dc_base;
+        unsigned long offload_features;
         u32 reset_world_flags;
 };