ehea: NAPI multi queue TX/RX path for SMP

This patch provides a functionality that allows parallel
RX processing on multiple RX queues by using dummy netdevices.
Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/ehea/ehea.h

@@ -39,7 +39,7 @@
 #include <asm/io.h>
 
 #define DRV_NAME	"ehea"
-#define DRV_VERSION	"EHEA_0048"
+#define DRV_VERSION	"EHEA_0052"
 
 #define EHEA_MSG_DEFAULT (NETIF_MSG_LINK | NETIF_MSG_TIMER \
 	| NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
@@ -78,8 +78,6 @@
 #define EHEA_RQ2_PKT_SIZE       1522
 #define EHEA_L_PKT_SIZE         256	/* low latency */
 
-#define EHEA_POLL_MAX_RWQE      1000
-
 /* Send completion signaling */
 #define EHEA_SIG_IV_LONG           1
 
@@ -357,8 +355,8 @@ struct ehea_port_res {
 	struct ehea_qp *qp;
 	struct ehea_cq *send_cq;
 	struct ehea_cq *recv_cq;
-	struct ehea_eq *send_eq;
-	struct ehea_eq *recv_eq;
+	struct ehea_eq *eq;
+	struct net_device *d_netdev;
 	spinlock_t send_lock;
 	struct ehea_q_skb_arr rq1_skba;
 	struct ehea_q_skb_arr rq2_skba;
@@ -372,7 +370,6 @@ struct ehea_port_res {
 	int swqe_count;
 	u32 swqe_id_counter;
 	u64 tx_packets;
-	struct tasklet_struct send_comp_task;
 	spinlock_t recv_lock;
 	struct port_state p_state;
 	u64 rx_packets;
@@ -416,7 +413,9 @@ struct ehea_port {
 	char int_aff_name[EHEA_IRQ_NAME_SIZE];
 	int allmulti;			 /* Indicates IFF_ALLMULTI state */
 	int promisc;		 	 /* Indicates IFF_PROMISC state */
+	int num_tx_qps;
 	int num_add_tx_qps;
+	int num_mcs;
 	int resets;
 	u64 mac_addr;
 	u32 logical_port_id;

drivers/net/ehea/ehea_qmr.h

@@ -320,6 +320,11 @@ static inline struct ehea_cqe *ehea_poll_rq1(struct ehea_qp *qp, int *wqe_index)
 	return hw_qeit_get_valid(queue);
 }
 
+static inline void ehea_inc_cq(struct ehea_cq *cq)
+{
+	hw_qeit_inc(&cq->hw_queue);
+}
+
 static inline void ehea_inc_rq1(struct ehea_qp *qp)
 {
 	hw_qeit_inc(&qp->hw_rqueue1);
@@ -327,7 +332,7 @@ static inline void ehea_inc_rq1(struct ehea_qp *qp)
 
 static inline struct ehea_cqe *ehea_poll_cq(struct ehea_cq *my_cq)
 {
-	return hw_qeit_get_inc_valid(&my_cq->hw_queue);
+	return hw_qeit_get_valid(&my_cq->hw_queue);
 }
 
 #define EHEA_CQ_REGISTER_ORIG 0