i40e: add GRE tunnel type to csum encoding

Orabug: 22342532

Make sure the Tx checksum encoder knows about GRE protocol and sets the
descriptor flag appropriately.

Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit c1d1791dc8b2a13c316a4e163552804361a786a4)
Signed-off-by: Brian Maly <brian.maly@oracle.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index f5792ad5fbfd9d053758cbec383d00acf7af9354..bf3a8348e7652b600b33379da91dcf29a456a2ab 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -2242,6 +2242,9 @@ static void i40e_tx_enable_csum(struct sk_buff *skb, u32 *tx_flags,
                        l4_tunnel = I40E_TXD_CTX_UDP_TUNNELING;
                        *tx_flags |= I40E_TX_FLAGS_VXLAN_TUNNEL;
                        break;
+               case IPPROTO_GRE:
+                       l4_tunnel = I40E_TXD_CTX_GRE_TUNNELING;
+                       break;
                default:
                        return;
                }