liquidio: added support for ethtool --set-channels feature

adding support for ethtool --set-channels feature

Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 226 insertions, 50 deletions

diff --git a/drivers/net/ethernet/cavium/liquidio/lio_core.c b/drivers/net/ethernet/cavium/liquidio/lio_core.c
index 217200ceecc7..8b8e78f04f94 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_core.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_core.c
@@ -275,6 +275,11 @@ void liquidio_link_ctrl_cmd_completion(void *nctrl_ptr)
 		netif_info(lio, probe, lio->netdev, "Set RX/TX flow control parameters\n");
 		break;
 
+	case OCTNET_CMD_QUEUE_COUNT_CTL:
+		netif_info(lio, probe, lio->netdev, "Queue count updated to %d\n",
+			   nctrl->ncmd.s.param1);
+		break;
+
 	default:
 		dev_err(&oct->pci_dev->dev, "%s Unknown cmd %d\n", __func__,
 			nctrl->ncmd.s.cmd);
@@ -689,7 +694,8 @@ static int liquidio_napi_poll(struct napi_struct *napi, int budget)
  * an input queue is for egress packets, and output queues
  * are for ingress packets.
  */
-int liquidio_setup_io_queues(struct octeon_device *octeon_dev, int ifidx)
+int liquidio_setup_io_queues(struct octeon_device *octeon_dev, int ifidx,
+			     u32 num_iqs, u32 num_oqs)
 {
 	struct octeon_droq_ops droq_ops;
 	struct net_device *netdev;
@@ -717,7 +723,7 @@ int liquidio_setup_io_queues(struct octeon_device *octeon_dev, int ifidx)
 	cpu_id_modulus = num_present_cpus();
 
 	/* set up DROQs. */
-	for (q = 0; q < lio->linfo.num_rxpciq; q++) {
+	for (q = 0; q < num_oqs; q++) {
 		q_no = lio->linfo.rxpciq[q].s.q_no;
 		dev_dbg(&octeon_dev->pci_dev->dev,
 			"%s index:%d linfo.rxpciq.s.q_no:%d\n",
@@ -761,7 +767,7 @@ int liquidio_setup_io_queues(struct octeon_device *octeon_dev, int ifidx)
 	}
 
 	/* set up IQs. */
-	for (q = 0; q < lio->linfo.num_txpciq; q++) {
+	for (q = 0; q < num_iqs; q++) {
 		num_tx_descs = CFG_GET_NUM_TX_DESCS_NIC_IF(
 		    octeon_get_conf(octeon_dev), lio->ifidx);
 		retval = octeon_setup_iq(octeon_dev, ifidx, q,
@@ -892,7 +898,7 @@ irqreturn_t liquidio_legacy_intr_handler(int irq __attribute__((unused)),
  *
  *  Enable interrupt in Octeon device as given in the PCI interrupt mask.
  */
-int octeon_setup_interrupt(struct octeon_device *oct)
+int octeon_setup_interrupt(struct octeon_device *oct, u32 num_ioqs)
 {
 	struct msix_entry *msix_entries;
 	char *queue_irq_names = NULL;
@@ -902,9 +908,9 @@ int octeon_setup_interrupt(struct octeon_device *oct)
 	int num_ioq_vectors;
 	int irqret, err;
 
+	oct->num_msix_irqs = num_ioqs;
 	if (oct->msix_on) {
 		if (OCTEON_CN23XX_PF(oct)) {
-			oct->num_msix_irqs = oct->sriov_info.num_pf_rings;
 			num_interrupts = MAX_IOQ_INTERRUPTS_PER_PF + 1;
 
 			/* one non ioq interrupt for handling
@@ -912,7 +918,6 @@ int octeon_setup_interrupt(struct octeon_device *oct)
 			 */
 			oct->num_msix_irqs += 1;
 		} else if (OCTEON_CN23XX_VF(oct)) {
-			oct->num_msix_irqs = oct->sriov_info.rings_per_vf;
 			num_interrupts = MAX_IOQ_INTERRUPTS_PER_VF;
 		}
 
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
index a59c8ccebd10..08aa06c90d46 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
@@ -31,6 +31,7 @@
 #include "cn23xx_pf_device.h"
 #include "cn23xx_vf_device.h"
 
+static int lio_reset_queues(struct net_device *netdev, uint32_t num_qs);
 static int octnet_get_link_stats(struct net_device *netdev);
 
 struct oct_intrmod_context {
@@ -300,6 +301,35 @@ lio_get_vf_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 	strncpy(drvinfo->bus_info, pci_name(oct->pci_dev), 32);
 }
 
+static int
+lio_send_queue_count_update(struct net_device *netdev, uint32_t num_queues)
+{
+	struct lio *lio = GET_LIO(netdev);
+	struct octeon_device *oct = lio->oct_dev;
+	struct octnic_ctrl_pkt nctrl;
+	int ret = 0;
+
+	memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
+
+	nctrl.ncmd.u64 = 0;
+	nctrl.ncmd.s.cmd = OCTNET_CMD_QUEUE_COUNT_CTL;
+	nctrl.ncmd.s.param1 = num_queues;
+	nctrl.ncmd.s.param2 = num_queues;
+	nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
+	nctrl.wait_time = 100;
+	nctrl.netpndev = (u64)netdev;
+	nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;
+
+	ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
+	if (ret < 0) {
+		dev_err(&oct->pci_dev->dev, "Failed to send Queue reset command (ret: 0x%x)\n",
+			ret);
+		return -1;
+	}
+
+	return 0;
+}
+
 static void
 lio_ethtool_get_channels(struct net_device *dev,
 			 struct ethtool_channels *channel)
@@ -307,6 +337,7 @@ lio_ethtool_get_channels(struct net_device *dev,
 	struct lio *lio = GET_LIO(dev);
 	struct octeon_device *oct = lio->oct_dev;
 	u32 max_rx = 0, max_tx = 0, tx_count = 0, rx_count = 0;
+	u32 combined_count = 0, max_combined = 0;
 
 	if (OCTEON_CN6XXX(oct)) {
 		struct octeon_config *conf6x = CHIP_CONF(oct, cn6xxx);
@@ -316,22 +347,137 @@ lio_ethtool_get_channels(struct net_device *dev,
 		rx_count = CFG_GET_NUM_RXQS_NIC_IF(conf6x, lio->ifidx);
 		tx_count = CFG_GET_NUM_TXQS_NIC_IF(conf6x, lio->ifidx);
 	} else if (OCTEON_CN23XX_PF(oct)) {
-
-		max_rx = oct->sriov_info.num_pf_rings;
-		max_tx = oct->sriov_info.num_pf_rings;
-		rx_count = lio->linfo.num_rxpciq;
-		tx_count = lio->linfo.num_txpciq;
+		max_combined = lio->linfo.num_txpciq;
+		combined_count = oct->num_iqs;
 	} else if (OCTEON_CN23XX_VF(oct)) {
-		max_tx = oct->sriov_info.rings_per_vf;
-		max_rx = oct->sriov_info.rings_per_vf;
-		rx_count = lio->linfo.num_rxpciq;
-		tx_count = lio->linfo.num_txpciq;
+		u64 reg_val = 0ULL;
+		u64 ctrl = CN23XX_VF_SLI_IQ_PKT_CONTROL64(0);
+
+		reg_val = octeon_read_csr64(oct, ctrl);
+		reg_val = reg_val >> CN23XX_PKT_INPUT_CTL_RPVF_POS;
+		max_combined = reg_val & CN23XX_PKT_INPUT_CTL_RPVF_MASK;
+		combined_count = oct->num_iqs;
 	}
 
 	channel->max_rx = max_rx;
 	channel->max_tx = max_tx;
+	channel->max_combined = max_combined;
 	channel->rx_count = rx_count;
 	channel->tx_count = tx_count;
+	channel->combined_count = combined_count;
+}
+
+static int
+lio_irq_reallocate_irqs(struct octeon_device *oct, uint32_t num_ioqs)
+{
+	struct msix_entry *msix_entries;
+	int num_msix_irqs = 0;
+	int i;
+
+	if (!oct->msix_on)
+		return 0;
+
+	/* Disable the input and output queues now. No more packets will
+	 * arrive from Octeon.
+	 */
+	oct->fn_list.disable_interrupt(oct, OCTEON_ALL_INTR);
+
+	if (oct->msix_on) {
+		if (OCTEON_CN23XX_PF(oct))
+			num_msix_irqs = oct->num_msix_irqs - 1;
+		else if (OCTEON_CN23XX_VF(oct))
+			num_msix_irqs = oct->num_msix_irqs;
+
+		msix_entries = (struct msix_entry *)oct->msix_entries;
+		for (i = 0; i < num_msix_irqs; i++) {
+			if (oct->ioq_vector[i].vector) {
+				/* clear the affinity_cpumask */
+				irq_set_affinity_hint(msix_entries[i].vector,
+						      NULL);
+				free_irq(msix_entries[i].vector,
+					 &oct->ioq_vector[i]);
+				oct->ioq_vector[i].vector = 0;
+			}
+		}
+
+		/* non-iov vector's argument is oct struct */
+		if (OCTEON_CN23XX_PF(oct))
+			free_irq(msix_entries[i].vector, oct);
+
+		pci_disable_msix(oct->pci_dev);
+		kfree(oct->msix_entries);
+		oct->msix_entries = NULL;
+	}
+
+	kfree(oct->irq_name_storage);
+	oct->irq_name_storage = NULL;
+	if (octeon_setup_interrupt(oct, num_ioqs)) {
+		dev_info(&oct->pci_dev->dev, "Setup interuupt failed\n");
+		return 1;
+	}
+
+	/* Enable Octeon device interrupts */
+	oct->fn_list.enable_interrupt(oct, OCTEON_ALL_INTR);
+
+	return 0;
+}
+
+static int
+lio_ethtool_set_channels(struct net_device *dev,
+			 struct ethtool_channels *channel)
+{
+	u32 combined_count, max_combined;
+	struct lio *lio = GET_LIO(dev);
+	struct octeon_device *oct = lio->oct_dev;
+	int stopped = 0;
+
+	if (strcmp(oct->fw_info.liquidio_firmware_version, "1.6.1") < 0) {
+		dev_err(&oct->pci_dev->dev, "Minimum firmware version required is 1.6.1\n");
+		return -EINVAL;
+	}
+
+	if (!channel->combined_count || channel->other_count ||
+	    channel->rx_count || channel->tx_count)
+		return -EINVAL;
+
+	combined_count = channel->combined_count;
+
+	if (OCTEON_CN23XX_PF(oct)) {
+		max_combined = channel->max_combined;
+	} else if (OCTEON_CN23XX_VF(oct)) {
+		u64 reg_val = 0ULL;
+		u64 ctrl = CN23XX_VF_SLI_IQ_PKT_CONTROL64(0);
+
+		reg_val = octeon_read_csr64(oct, ctrl);
+		reg_val = reg_val >> CN23XX_PKT_INPUT_CTL_RPVF_POS;
+		max_combined = reg_val & CN23XX_PKT_INPUT_CTL_RPVF_MASK;
+	} else {
+		return -EINVAL;
+	}
+
+	if (combined_count > max_combined || combined_count < 1)
+		return -EINVAL;
+
+	if (combined_count == oct->num_iqs)
+		return 0;
+
+	ifstate_set(lio, LIO_IFSTATE_RESETTING);
+
+	if (netif_running(dev)) {
+		dev->netdev_ops->ndo_stop(dev);
+		stopped = 1;
+	}
+
+	if (lio_reset_queues(dev, combined_count))
+		return -EINVAL;
+
+	lio_irq_reallocate_irqs(oct, combined_count);
+	if (stopped)
+		dev->netdev_ops->ndo_open(dev);
+
+	ifstate_reset(lio, LIO_IFSTATE_RESETTING);
+
+	return 0;
 }
 
 static int lio_get_eeprom_len(struct net_device *netdev)
@@ -664,15 +810,12 @@ lio_ethtool_get_ringparam(struct net_device *netdev,
 	ering->rx_jumbo_max_pending = 0;
 }
 
-static int lio_reset_queues(struct net_device *netdev)
+static int lio_reset_queues(struct net_device *netdev, uint32_t num_qs)
 {
 	struct lio *lio = GET_LIO(netdev);
 	struct octeon_device *oct = lio->oct_dev;
 	struct napi_struct *napi, *n;
-	int i;
-
-	dev_dbg(&oct->pci_dev->dev, "%s:%d ifidx %d\n",
-		__func__, __LINE__, lio->ifidx);
+	int i, update = 0;
 
 	if (wait_for_pending_requests(oct))
 		dev_err(&oct->pci_dev->dev, "There were pending requests\n");
@@ -693,6 +836,12 @@ static int lio_reset_queues(struct net_device *netdev)
 	list_for_each_entry_safe(napi, n, &netdev->napi_list, dev_list)
 		netif_napi_del(napi);
 
+	if (num_qs != oct->num_iqs) {
+		netif_set_real_num_rx_queues(netdev, num_qs);
+		netif_set_real_num_tx_queues(netdev, num_qs);
+		update = 1;
+	}
+
 	for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct); i++) {
 		if (!(oct->io_qmask.oq & BIT_ULL(i)))
 			continue;
@@ -710,7 +859,7 @@ static int lio_reset_queues(struct net_device *netdev)
 		return -1;
 	}
 
-	if (liquidio_setup_io_queues(oct, 0)) {
+	if (liquidio_setup_io_queues(oct, 0, num_qs, num_qs)) {
 		dev_err(&oct->pci_dev->dev, "IO queues initialization failed\n");
 		return -1;
 	}
@@ -721,6 +870,9 @@ static int lio_reset_queues(struct net_device *netdev)
 		return -1;
 	}
 
+	if (update && lio_send_queue_count_update(netdev, num_qs))
+		return -1;
+
 	return 0;
 }
 
@@ -764,7 +916,7 @@ static int lio_ethtool_set_ringparam(struct net_device *netdev,
 		CFG_SET_NUM_RX_DESCS_NIC_IF(octeon_get_conf(oct), lio->ifidx,
 					    rx_count);
 
-	if (lio_reset_queues(netdev))
+	if (lio_reset_queues(netdev, lio->linfo.num_txpciq))
 		goto err_lio_reset_queues;
 
 	if (stopped)
@@ -1194,7 +1346,7 @@ static void lio_vf_get_ethtool_stats(struct net_device *netdev,
 	/* lio->link_changes */
 	data[i++] = CVM_CAST64(lio->link_changes);
 
-	for (vj = 0; vj < lio->linfo.num_txpciq; vj++) {
+	for (vj = 0; vj < oct_dev->num_iqs; vj++) {
 		j = lio->linfo.txpciq[vj].s.q_no;
 
 		/* packets to network port */
@@ -1236,7 +1388,7 @@ static void lio_vf_get_ethtool_stats(struct net_device *netdev,
 	}
 
 	/* RX */
-	for (vj = 0; vj < lio->linfo.num_rxpciq; vj++) {
+	for (vj = 0; vj < oct_dev->num_oqs; vj++) {
 		j = lio->linfo.rxpciq[vj].s.q_no;
 
 		/* packets send to TCP/IP network stack */
@@ -2705,6 +2857,7 @@ static const struct ethtool_ops lio_ethtool_ops = {
 	.get_ringparam		= lio_ethtool_get_ringparam,
 	.set_ringparam		= lio_ethtool_set_ringparam,
 	.get_channels		= lio_ethtool_get_channels,
+	.set_channels		= lio_ethtool_set_channels,
 	.set_phys_id		= lio_set_phys_id,
 	.get_eeprom_len		= lio_get_eeprom_len,
 	.get_eeprom		= lio_get_eeprom,
@@ -2731,6 +2884,7 @@ static const struct ethtool_ops lio_vf_ethtool_ops = {
 	.get_ringparam		= lio_ethtool_get_ringparam,
 	.set_ringparam          = lio_ethtool_set_ringparam,
 	.get_channels		= lio_ethtool_get_channels,
+	.set_channels		= lio_ethtool_set_channels,
 	.get_strings		= lio_vf_get_strings,
 	.get_ethtool_stats	= lio_vf_get_ethtool_stats,
 	.get_regs_len		= lio_get_regs_len,
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c
index 82ed201e7a30..0eea6a2d0200 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
@@ -560,7 +560,7 @@ static inline void txqs_wake(struct net_device *netdev)
 
 		for (i = 0; i < netdev->num_tx_queues; i++) {
 			int qno = lio->linfo.txpciq[i %
-				(lio->linfo.num_txpciq)].s.q_no;
+				lio->oct_dev->num_iqs].s.q_no;
 
 			if (__netif_subqueue_stopped(netdev, i)) {
 				INCR_INSTRQUEUE_PKT_COUNT(lio->oct_dev, qno,
@@ -640,7 +640,7 @@ static inline int check_txq_status(struct lio *lio)
 		/* check each sub-queue state */
 		for (q = 0; q < numqs; q++) {
 			iq = lio->linfo.txpciq[q %
-				(lio->linfo.num_txpciq)].s.q_no;
+				lio->oct_dev->num_iqs].s.q_no;
 			if (octnet_iq_is_full(lio->oct_dev, iq))
 				continue;
 			if (__netif_subqueue_stopped(lio->netdev, q)) {
@@ -1181,11 +1181,15 @@ static void octeon_destroy_resources(struct octeon_device *oct)
 		if (oct->msix_on) {
 			msix_entries = (struct msix_entry *)oct->msix_entries;
 			for (i = 0; i < oct->num_msix_irqs - 1; i++) {
-				/* clear the affinity_cpumask */
-				irq_set_affinity_hint(msix_entries[i].vector,
-						      NULL);
-				free_irq(msix_entries[i].vector,
-					 &oct->ioq_vector[i]);
+				if (oct->ioq_vector[i].vector) {
+					/* clear the affinity_cpumask */
+					irq_set_affinity_hint(
+							msix_entries[i].vector,
+							NULL);
+					free_irq(msix_entries[i].vector,
+						 &oct->ioq_vector[i]);
+					oct->ioq_vector[i].vector = 0;
+				}
 			}
 			/* non-iov vector's argument is oct struct */
 			free_irq(msix_entries[i].vector, oct);
@@ -1465,7 +1469,7 @@ static int liquidio_stop_nic_module(struct octeon_device *oct)
 
 	for (i = 0; i < oct->ifcount; i++) {
 		lio = GET_LIO(oct->props[i].netdev);
-		for (j = 0; j < lio->linfo.num_rxpciq; j++)
+		for (j = 0; j < oct->num_oqs; j++)
 			octeon_unregister_droq_ops(oct,
 						   lio->linfo.rxpciq[j].s.q_no);
 	}
@@ -1605,7 +1609,7 @@ static inline int check_txq_state(struct lio *lio, struct sk_buff *skb)
 
 	if (netif_is_multiqueue(lio->netdev)) {
 		q = skb->queue_mapping;
-		iq = lio->linfo.txpciq[(q % (lio->linfo.num_txpciq))].s.q_no;
+		iq = lio->linfo.txpciq[(q % lio->oct_dev->num_iqs)].s.q_no;
 	} else {
 		iq = lio->txq;
 		q = iq;
@@ -2262,7 +2266,7 @@ static struct net_device_stats *liquidio_get_stats(struct net_device *netdev)
 	if (ifstate_check(lio, LIO_IFSTATE_RESETTING))
 		return stats;
 
-	for (i = 0; i < lio->linfo.num_txpciq; i++) {
+	for (i = 0; i < oct->num_iqs; i++) {
 		iq_no = lio->linfo.txpciq[i].s.q_no;
 		iq_stats = &oct->instr_queue[iq_no]->stats;
 		pkts += iq_stats->tx_done;
@@ -2278,7 +2282,7 @@ static struct net_device_stats *liquidio_get_stats(struct net_device *netdev)
 	drop = 0;
 	bytes = 0;
 
-	for (i = 0; i < lio->linfo.num_rxpciq; i++) {
+	for (i = 0; i < oct->num_oqs; i++) {
 		oq_no = lio->linfo.rxpciq[i].s.q_no;
 		oq_stats = &oct->droq[oq_no]->stats;
 		pkts += oq_stats->rx_pkts_received;
@@ -3533,7 +3537,9 @@ static int setup_nic_devices(struct octeon_device *octeon_dev)
 		 */
 		lio->txq = lio->linfo.txpciq[0].s.q_no;
 		lio->rxq = lio->linfo.rxpciq[0].s.q_no;
-		if (liquidio_setup_io_queues(octeon_dev, i)) {
+		if (liquidio_setup_io_queues(octeon_dev, i,
+					     lio->linfo.num_txpciq,
+					     lio->linfo.num_rxpciq)) {
 			dev_err(&octeon_dev->pci_dev->dev, "I/O queues creation failed\n");
 			goto setup_nic_dev_fail;
 		}
@@ -4012,7 +4018,8 @@ static int octeon_device_init(struct octeon_device *octeon_dev)
 
 	/* Setup the interrupt handler and record the INT SUM register address
 	 */
-	if (octeon_setup_interrupt(octeon_dev))
+	if (octeon_setup_interrupt(octeon_dev,
+				   octeon_dev->sriov_info.num_pf_rings))
 		return 1;
 
 	/* Enable Octeon device interrupts */
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
index a2f0d628958d..35a977abc7c4 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
@@ -342,7 +342,7 @@ static void txqs_wake(struct net_device *netdev)
 		int i;
 
 		for (i = 0; i < netdev->num_tx_queues; i++) {
-			int qno = lio->linfo.txpciq[i % (lio->linfo.num_txpciq)]
+			int 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,
@@ -750,10 +750,14 @@ static void octeon_destroy_resources(struct octeon_device *oct)
 		if (oct->msix_on) {
 			msix_entries = (struct msix_entry *)oct->msix_entries;
 			for (i = 0; i < oct->num_msix_irqs; i++) {
-				irq_set_affinity_hint(msix_entries[i].vector,
-						      NULL);
-				free_irq(msix_entries[i].vector,
-					 &oct->ioq_vector[i]);
+				if (oct->ioq_vector[i].vector) {
+					irq_set_affinity_hint(
+							msix_entries[i].vector,
+							NULL);
+					free_irq(msix_entries[i].vector,
+						 &oct->ioq_vector[i]);
+					oct->ioq_vector[i].vector = 0;
+				}
 			}
 			pci_disable_msix(oct->pci_dev);
 			kfree(oct->msix_entries);
@@ -986,7 +990,7 @@ static int liquidio_stop_nic_module(struct octeon_device *oct)
 
 	for (i = 0; i < oct->ifcount; i++) {
 		lio = GET_LIO(oct->props[i].netdev);
-		for (j = 0; j < lio->linfo.num_rxpciq; j++)
+		for (j = 0; j < oct->num_oqs; j++)
 			octeon_unregister_droq_ops(oct,
 						   lio->linfo.rxpciq[j].s.q_no);
 	}
@@ -1074,7 +1078,7 @@ static int check_txq_state(struct lio *lio, struct sk_buff *skb)
 
 	if (netif_is_multiqueue(lio->netdev)) {
 		q = skb->queue_mapping;
-		iq = lio->linfo.txpciq[(q % (lio->linfo.num_txpciq))].s.q_no;
+		iq = lio->linfo.txpciq[q % lio->oct_dev->num_iqs].s.q_no;
 	} else {
 		iq = lio->txq;
 		q = iq;
@@ -1494,7 +1498,7 @@ static struct net_device_stats *liquidio_get_stats(struct net_device *netdev)
 	if (ifstate_check(lio, LIO_IFSTATE_RESETTING))
 		return stats;
 
-	for (i = 0; i < lio->linfo.num_txpciq; i++) {
+	for (i = 0; i < oct->num_iqs; i++) {
 		iq_no = lio->linfo.txpciq[i].s.q_no;
 		iq_stats = &oct->instr_queue[iq_no]->stats;
 		pkts += iq_stats->tx_done;
@@ -1510,7 +1514,7 @@ static struct net_device_stats *liquidio_get_stats(struct net_device *netdev)
 	drop = 0;
 	bytes = 0;
 
-	for (i = 0; i < lio->linfo.num_rxpciq; i++) {
+	for (i = 0; i < oct->num_oqs; i++) {
 		oq_no = lio->linfo.rxpciq[i].s.q_no;
 		oq_stats = &oct->droq[oq_no]->stats;
 		pkts += oq_stats->rx_pkts_received;
@@ -2465,7 +2469,9 @@ static int setup_nic_devices(struct octeon_device *octeon_dev)
 		/* Copy MAC Address to OS network device structure */
 		ether_addr_copy(netdev->dev_addr, mac);
 
-		if (liquidio_setup_io_queues(octeon_dev, i)) {
+		if (liquidio_setup_io_queues(octeon_dev, i,
+					     lio->linfo.num_txpciq,
+					     lio->linfo.num_rxpciq)) {
 			dev_err(&octeon_dev->pci_dev->dev, "I/O queues creation failed\n");
 			goto setup_nic_dev_fail;
 		}
@@ -2688,7 +2694,7 @@ static int octeon_device_init(struct octeon_device *oct)
 		 LIQUIDIO_VERSION, oct->sriov_info.rings_per_vf);
 
 	/* Setup the interrupt handler and record the INT SUM register address*/
-	if (octeon_setup_interrupt(oct))
+	if (octeon_setup_interrupt(oct, oct->sriov_info.rings_per_vf))
 		return 1;
 
 	atomic_set(&oct->status, OCT_DEV_INTR_SET_DONE);
diff --git a/drivers/net/ethernet/cavium/liquidio/liquidio_common.h b/drivers/net/ethernet/cavium/liquidio/liquidio_common.h
index 3b9e3646b971..18d29550e2f8 100644
--- a/drivers/net/ethernet/cavium/liquidio/liquidio_common.h
+++ b/drivers/net/ethernet/cavium/liquidio/liquidio_common.h
@@ -226,6 +226,9 @@ static inline void add_sg_size(struct octeon_sg_entry *sg_entry,
 
 #define   OCTNET_CMD_SET_UC_LIST       0x1b
 #define   OCTNET_CMD_SET_VF_LINKSTATE  0x1c
+
+#define   OCTNET_CMD_QUEUE_COUNT_CTL	0x1f
+
 #define   OCTNET_CMD_VXLAN_PORT_ADD    0x0
 #define   OCTNET_CMD_VXLAN_PORT_DEL    0x1
 #define   OCTNET_CMD_RXCSUM_ENABLE     0x0
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_network.h b/drivers/net/ethernet/cavium/liquidio/octeon_network.h
index ad29550c91f7..9e36319cead6 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_network.h
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_network.h
@@ -167,12 +167,13 @@ void cleanup_rx_oom_poll_fn(struct net_device *netdev);
  */
 void liquidio_link_ctrl_cmd_completion(void *nctrl_ptr);
 
-int liquidio_setup_io_queues(struct octeon_device *octeon_dev, int ifidx);
+int liquidio_setup_io_queues(struct octeon_device *octeon_dev, int ifidx,
+			     u32 num_iqs, u32 num_oqs);
 
 irqreturn_t liquidio_msix_intr_handler(int irq __attribute__((unused)),
 				       void *dev);
 
-int octeon_setup_interrupt(struct octeon_device *oct);
+int octeon_setup_interrupt(struct octeon_device *oct, u32 num_ioqs);
 
 /**
  * \brief Register ethtool operations