liquidio: Removed netif_is_multiqueue check

Removing checks for netif_is_multiqueue.
Configuring single queue will be a multiqueue netdev with one queues.
Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Acked-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/cavium/liquidio/lio_core.c

@@ -377,7 +377,6 @@ static void lio_update_txq_status(struct octeon_device *oct, int iq_num)
 		return;
 
 	lio = GET_LIO(netdev);
-	if (netif_is_multiqueue(netdev)) {
 	if (__netif_subqueue_stopped(netdev, iq->q_index) &&
 	    lio->linfo.link.s.link_up &&
 	    (!octnet_iq_is_full(oct, iq_num))) {
@@ -385,13 +384,6 @@ static void lio_update_txq_status(struct octeon_device *oct, int iq_num)
 		INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, iq_num,
 					  tx_restart, 1);
 	}
-	} else if (netif_queue_stopped(netdev) &&
-		   lio->linfo.link.s.link_up &&
-		   (!octnet_iq_is_full(oct, lio->txq))) {
-		INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, lio->txq,
-					  tx_restart, 1);
-		netif_wake_queue(netdev);
-	}
 }
 
 /**

drivers/net/ethernet/cavium/liquidio/lio_main.c

@@ -520,10 +520,7 @@ static void liquidio_deinit_pci(void)
  */
 static inline void wake_q(struct net_device *netdev, int q)
 {
-	if (netif_is_multiqueue(netdev))
 	netif_wake_subqueue(netdev, q);
-	else
-		netif_wake_queue(netdev);
 }
 
 /**
@@ -533,10 +530,7 @@ static inline void wake_q(struct net_device *netdev, int q)
  */
 static inline void stop_q(struct net_device *netdev, int q)
 {
-	if (netif_is_multiqueue(netdev))
 	netif_stop_subqueue(netdev, q);
-	else
-		netif_stop_queue(netdev);
 }
 
 /**
@@ -546,11 +540,9 @@ static inline void stop_q(struct net_device *netdev, int q)
  */
 static inline int check_txq_status(struct lio *lio)
 {
-	int ret_val = 0;
-
-	if (netif_is_multiqueue(lio->netdev)) {
 	int numqs = lio->netdev->num_tx_queues;
-		int q, iq = 0;
+	int ret_val = 0;
+	int q, iq;
 
 	/* check each sub-queue state */
 	for (q = 0; q < numqs; q++) {
@@ -565,14 +557,7 @@ static inline int check_txq_status(struct lio *lio)
 			ret_val++;
 		}
 	}
-	} else {
-		if (octnet_iq_is_full(lio->oct_dev, lio->txq))
-			return 0;
-		wake_q(lio->netdev, lio->txq);
-		INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, lio->txq,
-					  tx_restart, 1);
-		ret_val = 1;
-	}
+
 	return ret_val;
 }
 
@@ -1676,15 +1661,10 @@ static int octeon_pci_os_setup(struct octeon_device *oct)
  */
 static inline int check_txq_state(struct lio *lio, struct sk_buff *skb)
 {
-	int q = 0, iq = 0;
+	int q, iq;
 
-	if (netif_is_multiqueue(lio->netdev)) {
 	q = skb->queue_mapping;
 	iq = lio->linfo.txpciq[(q % lio->oct_dev->num_iqs)].s.q_no;
-	} else {
-		iq = lio->txq;
-		q = iq;
-	}
 
 	if (octnet_iq_is_full(lio->oct_dev, iq))
 		return 0;
@@ -2573,14 +2553,10 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
 	lio = GET_LIO(netdev);
 	oct = lio->oct_dev;
 
-	if (netif_is_multiqueue(netdev)) {
 	q_idx = skb->queue_mapping;
 	q_idx = (q_idx % (lio->linfo.num_txpciq));
 	tag = q_idx;
 	iq_no = lio->linfo.txpciq[q_idx].s.q_no;
-	} else {
-		iq_no = lio->txq;
-	}
 
 	stats = &oct->instr_queue[iq_no]->stats;
 
@@ -2611,7 +2587,6 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
 
 	ndata.q_no = iq_no;
 
-	if (netif_is_multiqueue(netdev)) {
 	if (octnet_iq_is_full(oct, ndata.q_no)) {
 		/* defer sending if queue is full */
 		netif_info(lio, tx_err, lio->netdev, "Transmit failed iq:%d full\n",
@@ -2619,15 +2594,7 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
 		stats->tx_iq_busy++;
 		return NETDEV_TX_BUSY;
 	}
-	} else {
-		if (octnet_iq_is_full(oct, lio->txq)) {
-			/* defer sending if queue is full */
-			stats->tx_iq_busy++;
-			netif_info(lio, tx_err, lio->netdev, "Transmit failed iq:%d full\n",
-				   lio->txq);
-			return NETDEV_TX_BUSY;
-		}
-	}
+
 	/* pr_info(" XMIT - valid Qs: %d, 1st Q no: %d, cpu:  %d, q_no:%d\n",
 	 *	lio->linfo.num_txpciq, lio->txq, cpu, ndata.q_no);
 	 */

drivers/net/ethernet/cavium/liquidio/lio_vf_main.c

@@ -291,10 +291,7 @@ static struct pci_driver liquidio_vf_pci_driver = {
  */
 static void wake_q(struct net_device *netdev, int q)
 {
-	if (netif_is_multiqueue(netdev))
 	netif_wake_subqueue(netdev, q);
-	else
-		netif_wake_queue(netdev);
 }
 
 /**
@@ -304,10 +301,7 @@ static void wake_q(struct net_device *netdev, int q)
  */
 static void stop_q(struct net_device *netdev, int q)
 {
-	if (netif_is_multiqueue(netdev))
 	netif_stop_subqueue(netdev, q);
-	else
-		netif_stop_queue(netdev);
 }
 
 /**
@@ -986,15 +980,10 @@ static int octeon_pci_os_setup(struct octeon_device *oct)
  */
 static int check_txq_state(struct lio *lio, struct sk_buff *skb)
 {
-	int q = 0, iq = 0;
+	int q, iq;
 
-	if (netif_is_multiqueue(lio->netdev)) {
 	q = skb->queue_mapping;
 	iq = lio->linfo.txpciq[q % lio->oct_dev->num_iqs].s.q_no;
-	} else {
-		iq = lio->txq;
-		q = iq;
-	}
 
 	if (octnet_iq_is_full(lio->oct_dev, iq))
 		return 0;
@@ -1635,14 +1624,10 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
 	lio = GET_LIO(netdev);
 	oct = lio->oct_dev;
 
-	if (netif_is_multiqueue(netdev)) {
 	q_idx = skb->queue_mapping;
 	q_idx = (q_idx % (lio->linfo.num_txpciq));
 	tag = q_idx;
 	iq_no = lio->linfo.txpciq[q_idx].s.q_no;
-	} else {
-		iq_no = lio->txq;
-	}
 
 	stats = &oct->instr_queue[iq_no]->stats;
 
@@ -1671,7 +1656,6 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
 
 	ndata.q_no = iq_no;
 
-	if (netif_is_multiqueue(netdev)) {
 	if (octnet_iq_is_full(oct, ndata.q_no)) {
 		/* defer sending if queue is full */
 		netif_info(lio, tx_err, lio->netdev, "Transmit failed iq:%d full\n",
@@ -1679,15 +1663,6 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
 		stats->tx_iq_busy++;
 		return NETDEV_TX_BUSY;
 	}
-	} else {
-		if (octnet_iq_is_full(oct, lio->txq)) {
-			/* defer sending if queue is full */
-			stats->tx_iq_busy++;
-			netif_info(lio, tx_err, lio->netdev, "Transmit failed iq:%d full\n",
-				   ndata.q_no);
-			return NETDEV_TX_BUSY;
-		}
-	}
 
 	ndata.datasize = skb->len;
 

drivers/net/ethernet/cavium/liquidio/octeon_network.h

@@ -512,14 +512,10 @@ static inline int wait_for_pending_requests(struct octeon_device *oct)
  */
 static inline void txqs_stop(struct net_device *netdev)
 {
-	if (netif_is_multiqueue(netdev)) {
 	int i;
 
 	for (i = 0; i < netdev->num_tx_queues; i++)
 		netif_stop_subqueue(netdev, i);
-	} else {
-		netif_stop_queue(netdev);
-	}
 }
 
 /**
@@ -529,13 +525,10 @@ static inline void txqs_stop(struct net_device *netdev)
 static inline void txqs_wake(struct net_device *netdev)
 {
 	struct lio *lio = GET_LIO(netdev);
-
-	if (netif_is_multiqueue(netdev)) {
-		int i;
+	int i, qno;
 
 	for (i = 0; i < netdev->num_tx_queues; i++) {
-			int qno = lio->linfo.txpciq[i %
-				lio->oct_dev->num_iqs].s.q_no;
+		qno = lio->linfo.txpciq[i % lio->oct_dev->num_iqs].s.q_no;
 
 		if (__netif_subqueue_stopped(netdev, i)) {
 			INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, qno,
@@ -543,11 +536,6 @@ static inline void txqs_wake(struct net_device *netdev)
 			netif_wake_subqueue(netdev, i);
 		}
 	}
-	} else {
-		INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, lio->txq,
-					  tx_restart, 1);
-		netif_wake_queue(netdev);
-	}
 }
 
 /**
@@ -557,27 +545,17 @@ static inline void txqs_wake(struct net_device *netdev)
 static inline void txqs_start(struct net_device *netdev)
 {
 	struct lio *lio = GET_LIO(netdev);
-
-	if (lio->linfo.link.s.link_up) {
-		if (netif_is_multiqueue(netdev)) {
 	int i;
 
+	if (lio->linfo.link.s.link_up) {
 		for (i = 0; i < netdev->num_tx_queues; i++)
 			netif_start_subqueue(netdev, i);
-		} else {
-			netif_start_queue(netdev);
-		}
 	}
 }
 
 static inline int skb_iq(struct lio *lio, struct sk_buff *skb)
 {
-	int q = 0;
-
-	if (netif_is_multiqueue(lio->netdev))
-		q = skb->queue_mapping % lio->linfo.num_txpciq;
-
-	return q;
+	return skb->queue_mapping % lio->linfo.num_txpciq;
 }
 
 #endif