cxgb4: add action to steer flows to specific Rxq

Add support for queue action to steer Rx traffic
hitting the flows to specified Rxq.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c

@@ -425,6 +425,11 @@ void cxgb4_process_flow_actions(struct net_device *in,
 			process_pedit_field(fs, val, mask, offset, htype);
 			}
 			break;
+		case FLOW_ACTION_QUEUE:
+			fs->action = FILTER_PASS;
+			fs->dirsteer = 1;
+			fs->iq = act->queue.index;
+			break;
 		default:
 			break;
 		}
@@ -609,6 +614,9 @@ int cxgb4_validate_flow_actions(struct net_device *dev,
 			act_pedit = true;
 			}
 			break;
+		case FLOW_ACTION_QUEUE:
+			/* Do nothing. cxgb4_set_filter will validate */
+			break;
 		default:
 			netdev_err(dev, "%s: Unsupported action\n", __func__);
 			return -EOPNOTSUPP;