+int ipoib_set_dev_features(struct ipoib_dev_priv *priv, struct ib_device *hca)
+{
+ struct ib_device_attr *device_attr;
+ int result = -ENOMEM;
+
+ device_attr = kmalloc(sizeof *device_attr, GFP_KERNEL);
+ if (!device_attr) {
+ printk(KERN_WARNING "%s: allocation of %zu bytes failed\n",
+ hca->name, sizeof *device_attr);
+ return result;
+ }
+
+ result = ib_query_device(hca, device_attr);
+ if (result) {
+ printk(KERN_WARNING "%s: ib_query_device failed (ret = %d)\n",
+ hca->name, result);
+ kfree(device_attr);
+ return result;
+ }
+ priv->hca_caps = device_attr->device_cap_flags;
+
+ kfree(device_attr);
+
+ if (priv->hca_caps & IB_DEVICE_UD_IP_CSUM) {
+ set_bit(IPOIB_FLAG_CSUM, &priv->flags);
+ priv->dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
+ }
+
+ if (lro)
+ priv->dev->features |= NETIF_F_LRO;
+
+ if (priv->dev->features & NETIF_F_SG && priv->hca_caps & IB_DEVICE_UD_TSO)
+ priv->dev->features |= NETIF_F_TSO;
+
+ return 0;
+}
+
+