net/mlx4: restore Tx checksum offloads

[dpdk.git] / drivers / net / mlx4 / mlx4.c

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 0db9a19..a297b9a 100644 (file)
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -566,6 +566,17 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
                priv->pd = pd;
                priv->mtu = ETHER_MTU;
                priv->vf = vf;
+               priv->hw_csum = !!(device_attr.device_cap_flags &
+                                  IBV_DEVICE_RAW_IP_CSUM);
+               DEBUG("checksum offloading is %ssupported",
+                     (priv->hw_csum ? "" : "not "));
+               /* Only ConnectX-3 Pro supports tunneling. */
+               priv->hw_csum_l2tun =
+                       priv->hw_csum &&
+                       (device_attr.vendor_part_id ==
+                        PCI_DEVICE_ID_MELLANOX_CONNECTX3PRO);
+               DEBUG("L2 tunnel checksum offloads are %ssupported",
+                     (priv->hw_csum_l2tun ? "" : "not "));
                /* Configure the first MAC address by default. */
                if (mlx4_get_mac(priv, &mac.addr_bytes)) {
                        ERROR("cannot get MAC address, is mlx4_en loaded?"