bna: Brocade 10Gb Ethernet device driver

diff -ruP net-next-2.6.35-rc1-orig/drivers/net/bna/bnad.c net-next-2.6.35-rc1-mod/drivers/net/bna/bnad.c
@@ -0,0 +1,3270 @@
+/*
+ * Linux network driver for Brocade Converged Network Adapter.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License (GPL) Version 2 as
+ * published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+/*
+ * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * All rights reserved
+ * www.brocade.com
+ */
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/etherdevice.h>
+#include <linux/in.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+
+#include "bnad.h"
+#include "bna.h"
+#include "cna.h"
+
+DEFINE_MUTEX(bnad_fwimg_mutex);
+
+/*
+ * Module params
+ */
+static uint bnad_msix_disable;
+module_param(bnad_msix_disable, uint, 0444);
+MODULE_PARM_DESC(bnad_msix_disable, "Disable MSIX mode");
+
+static uint bnad_ioc_auto_recover = 1;
+module_param(bnad_ioc_auto_recover, uint, 0444);
+MODULE_PARM_DESC(bnad_ioc_auto_recover, "Enable / Disable auto recovery");
+
+/*
+ * Global variables
+ */
+u32 bnad_rxqs_per_cq = 2;
+
+const u8 bnad_bcast_addr[] =  {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+
+/*
+ * Local MACROS
+ */
+#define BNAD_TX_UNMAPQ_DEPTH (bnad->txq_depth * 2)
+
+#define BNAD_RX_UNMAPQ_DEPTH (bnad->rxq_depth)
+
+#define BNAD_GET_MBOX_IRQ(_bnad)				\
+	(((_bnad)->cfg_flags & BNAD_CF_MSIX) ?			\
+	 ((_bnad)->msix_table[(_bnad)->msix_num - 1].vector) : 	\
+	 ((_bnad)->pcidev->irq))
+
+#define BNAD_FILL_UNMAPQ_MEM_REQ(_res_info, _num, _depth)	\
+do {								\
+	(_res_info)->res_type = BNA_RES_T_MEM;			\
+	(_res_info)->res_u.mem_info.mem_type = BNA_MEM_T_KVA;	\
+	(_res_info)->res_u.mem_info.num = (_num);		\
+	(_res_info)->res_u.mem_info.len =			\
+	sizeof(struct bnad_unmap_q) +				\
+	(sizeof(struct bnad_skb_unmap) * ((_depth) - 1));	\
+} while (0)
+
+/*
+ * Reinitialize completions in CQ, once Rx is taken down
+ */
+static void
+bnad_cq_cmpl_init(struct bnad *bnad, struct bna_ccb *ccb)
+{
+	struct bna_cq_entry *cmpl, *next_cmpl;
+	unsigned int wi_range, wis = 0, ccb_prod = 0;
+	int i;
+
+	BNA_CQ_QPGE_PTR_GET(ccb_prod, ccb->sw_qpt, cmpl,
+			    wi_range);
+
+	for (i = 0; i < ccb->q_depth; i++) {
+		wis++;
+		if (likely(--wi_range))
+			next_cmpl = cmpl + 1;
+		else {
+			BNA_QE_INDX_ADD(ccb_prod, wis, ccb->q_depth);
+			wis = 0;
+			BNA_CQ_QPGE_PTR_GET(ccb_prod, ccb->sw_qpt,
+						next_cmpl, wi_range);
+		}
+		cmpl->valid = 0;
+		cmpl = next_cmpl;
+	}
+}
+
+/*
+ * Frees all pending Tx Bufs
+ * At this point no activity is expected on the Q,
+ * so DMA unmap & freeing is fine.
+ */
+static void
+bnad_free_all_txbufs(struct bnad *bnad,
+		 struct bna_tcb *tcb)
+{
+	u16 		unmap_cons;
+	struct bnad_unmap_q *unmap_q = tcb->unmap_q;
+	struct bnad_skb_unmap *unmap_array;
+	struct sk_buff 		*skb = NULL;
+	int			i;
+
+	unmap_array = unmap_q->unmap_array;
+
+	unmap_cons = 0;
+	while (unmap_cons < unmap_q->q_depth) {
+		skb = unmap_array[unmap_cons].skb;
+		if (!skb) {
+			unmap_cons++;
+			continue;
+		}
+		unmap_array[unmap_cons].skb = NULL;
+
+		pci_unmap_single(bnad->pcidev,
+				 pci_unmap_addr(&unmap_array[unmap_cons],
+						dma_addr), skb_headlen(skb),
+						PCI_DMA_TODEVICE);
+
+		pci_unmap_addr_set(&unmap_array[unmap_cons], dma_addr, 0);
+		unmap_cons++;
+		for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+			pci_unmap_page(bnad->pcidev,
+				       pci_unmap_addr(&unmap_array[unmap_cons],
+						      dma_addr),
+				       skb_shinfo(skb)->frags[i].size,
+				       PCI_DMA_TODEVICE);
+			pci_unmap_addr_set(&unmap_array[unmap_cons], dma_addr,
+					   0);
+			unmap_cons++;
+		}
+		dev_kfree_skb_any(skb);
+	}
+}
+
+/* Data Path Handlers */
+
+/*
+ * bnad_free_txbufs : Frees the Tx bufs on Tx completion
+ * Can be called in a) Interrupt context
+ *		    b) Sending context
+ *		    c) Tasklet context
+ */
+static u32
+bnad_free_txbufs(struct bnad *bnad,
+		 struct bna_tcb *tcb)
+{
+	u32 		sent_packets = 0, sent_bytes = 0;
+	u16 		wis, unmap_cons, updated_hw_cons;
+	struct bnad_unmap_q *unmap_q = tcb->unmap_q;
+	struct bnad_skb_unmap *unmap_array;
+	struct sk_buff 		*skb;
+	int i;
+
+	/*
+	 * Just return if TX is stopped. This check is useful
+	 * when bnad_free_txbufs() runs out of a tasklet scheduled
+	 * before bnad_cb_tx_cleanup() cleared BNAD_RF_TX_STARTED bit
+	 * but this routine runs actually after the cleanup has been
+	 * executed.
+	 */
+	if (!test_bit(BNAD_RF_TX_STARTED, &bnad->run_flags))
+		return 0;
+
+	updated_hw_cons = *(tcb->hw_consumer_index);
+
+	wis = BNA_Q_INDEX_CHANGE(tcb->consumer_index,
+				  updated_hw_cons, tcb->q_depth);
+
+	BUG_ON(!(wis <= BNA_QE_IN_USE_CNT(tcb, tcb->q_depth)));
+
+	unmap_array = unmap_q->unmap_array;
+	unmap_cons = unmap_q->consumer_index;
+
+	prefetch(&unmap_array[unmap_cons + 1]);
+	while (wis) {
+		skb = unmap_array[unmap_cons].skb;
+
+		unmap_array[unmap_cons].skb = NULL;
+
+		sent_packets++;
+		sent_bytes += skb->len;
+		wis -= BNA_TXQ_WI_NEEDED(1 + skb_shinfo(skb)->nr_frags);
+
+		pci_unmap_single(bnad->pcidev,
+				 pci_unmap_addr(&unmap_array[unmap_cons],
+						dma_addr), skb_headlen(skb),
+				 PCI_DMA_TODEVICE);
+		pci_unmap_addr_set(&unmap_array[unmap_cons], dma_addr, 0);
+		BNA_QE_INDX_ADD(unmap_cons, 1, unmap_q->q_depth);
+
+		prefetch(&unmap_array[unmap_cons + 1]);
+		for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+			prefetch(&unmap_array[unmap_cons + 1]);
+
+			pci_unmap_page(bnad->pcidev,
+				       pci_unmap_addr(&unmap_array[unmap_cons],
+						      dma_addr),
+				       skb_shinfo(skb)->frags[i].size,
+				       PCI_DMA_TODEVICE);
+			pci_unmap_addr_set(&unmap_array[unmap_cons], dma_addr,
+					   0);
+			BNA_QE_INDX_ADD(unmap_cons, 1, unmap_q->q_depth);
+		}
+		dev_kfree_skb_any(skb);
+	}
+
+	/* Update consumer pointers. */
+	tcb->consumer_index = updated_hw_cons;
+	unmap_q->consumer_index = unmap_cons;
+
+	tcb->txq->tx_packets += sent_packets;
+	tcb->txq->tx_bytes += sent_bytes;
+
+	return sent_packets;
+}
+
+/* Tx Free Tasklet function */
+/* Frees for all the tcb's in all the Tx's */
+/*
+ * Scheduled from sending context, so that
+ * the fat Tx lock is not held for too long
+ * in the sending context.
+ */
+static void
+bnad_tx_free_tasklet(unsigned long bnad_ptr)
+{
+	struct bnad *bnad = (struct bnad *)bnad_ptr;
+	struct bna_tcb *tcb;
+	u32 		acked;
+	int			i, j;
+
+	for (i = 0; i < bnad->num_tx; i++) {
+		for (j = 0; j < bnad->num_txq_per_tx; j++) {
+			tcb = bnad->tx_info[i].tcb[j];
+			if (!tcb)
+				continue;
+			if (((u16) (*tcb->hw_consumer_index) !=
+				tcb->consumer_index) &&
+				(!test_and_set_bit(BNAD_TXQ_FREE_SENT,
+						  &tcb->flags))) {
+				acked = bnad_free_txbufs(bnad, tcb);
+				bna_ib_ack(tcb->i_dbell, acked);
+				smp_mb__before_clear_bit();
+				clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
+			}
+		}
+	}
+}
+
+static u32
+bnad_tx(struct bnad *bnad, struct bna_tcb *tcb)
+{
+	struct net_device *netdev = bnad->netdev;
+	u32 sent;
+
+	if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags))
+		return 0;
+
+	sent = bnad_free_txbufs(bnad, tcb);
+	if (sent) {
+		if (netif_queue_stopped(netdev) &&
+		    netif_carrier_ok(netdev) &&
+		    BNA_QE_FREE_CNT(tcb, tcb->q_depth) >=
+				    BNAD_NETIF_WAKE_THRESHOLD) {
+			netif_wake_queue(netdev);
+			BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
+		}
+		bna_ib_ack(tcb->i_dbell, sent);
+	} else
+		bna_ib_ack(tcb->i_dbell, 0);
+
+	smp_mb__before_clear_bit();
+	clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
+
+	return sent;
+}
+
+/* MSIX Tx Completion Handler */
+static irqreturn_t
+bnad_msix_tx(int irq, void *data)
+{
+	struct bna_tcb *tcb = (struct bna_tcb *)data;
+	struct bnad *bnad = tcb->bnad;
+
+	bnad_tx(bnad, tcb);
+
+	return IRQ_HANDLED;
+}
+
+static void
+bnad_reset_rcb(struct bnad *bnad, struct bna_rcb *rcb)
+{
+	struct bnad_unmap_q *unmap_q = rcb->unmap_q;
+
+	rcb->producer_index = 0;
+	rcb->consumer_index = 0;
+
+	unmap_q->producer_index = 0;
+	unmap_q->consumer_index = 0;
+}
+
+static void
+bnad_free_rxbufs(struct bnad *bnad, struct bna_rcb *rcb)
+{
+	struct bnad_unmap_q *unmap_q;
+	struct sk_buff *skb;
+
+	unmap_q = rcb->unmap_q;
+	while (BNA_QE_IN_USE_CNT(unmap_q, unmap_q->q_depth)) {
+		skb = unmap_q->unmap_array[unmap_q->consumer_index].skb;
+		BUG_ON(!(skb));
+		unmap_q->unmap_array[unmap_q->consumer_index].skb = NULL;
+		pci_unmap_single(bnad->pcidev, pci_unmap_addr(&unmap_q->
+					unmap_array[unmap_q->consumer_index],
+					dma_addr), rcb->rxq->buffer_size +
+					NET_IP_ALIGN, PCI_DMA_FROMDEVICE);
+		dev_kfree_skb(skb);
+		BNA_QE_INDX_ADD(unmap_q->consumer_index, 1, unmap_q->q_depth);
+		BNA_QE_INDX_ADD(rcb->consumer_index, 1, rcb->q_depth);
+	}
+
+	bnad_reset_rcb(bnad, rcb);
+}
+
+static void
+bnad_alloc_n_post_rxbufs(struct bnad *bnad, struct bna_rcb *rcb)
+{
+	u16 to_alloc, alloced, unmap_prod, wi_range;
+	struct bnad_unmap_q *unmap_q = rcb->unmap_q;
+	struct bnad_skb_unmap *unmap_array;
+	struct bna_rxq_entry *rxent;
+	struct sk_buff *skb;
+	dma_addr_t dma_addr;
+
+	alloced = 0;
+	to_alloc =
+		BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth);
+
+	unmap_array = unmap_q->unmap_array;
+	unmap_prod = unmap_q->producer_index;
+
+	BNA_RXQ_QPGE_PTR_GET(unmap_prod, rcb->sw_qpt, rxent, wi_range);
+
+	while (to_alloc--) {
+		if (!wi_range) {
+			BNA_RXQ_QPGE_PTR_GET(unmap_prod, rcb->sw_qpt, rxent,
+					     wi_range);
+		}
+		skb = alloc_skb(rcb->rxq->buffer_size + NET_IP_ALIGN,
+				     GFP_ATOMIC);
+		if (unlikely(!skb)) {
+			BNAD_UPDATE_CTR(bnad, rxbuf_alloc_failed);
+			goto finishing;
+		}
+		skb->dev = bnad->netdev;
+		skb_reserve(skb, NET_IP_ALIGN);
+		unmap_array[unmap_prod].skb = skb;
+		dma_addr = pci_map_single(bnad->pcidev, skb->data,
+			rcb->rxq->buffer_size, PCI_DMA_FROMDEVICE);
+		pci_unmap_addr_set(&unmap_array[unmap_prod], dma_addr,
+				   dma_addr);
+		BNA_SET_DMA_ADDR(dma_addr, &rxent->host_addr);
+		BNA_QE_INDX_ADD(unmap_prod, 1, unmap_q->q_depth);
+
+		rxent++;
+		wi_range--;
+		alloced++;
+	}
+
+finishing:
+	if (likely(alloced)) {
+		unmap_q->producer_index = unmap_prod;
+		rcb->producer_index = unmap_prod;
+		smp_mb();
+		bna_rxq_prod_indx_doorbell(rcb);
+	}
+}
+
+/*
+ * Locking is required in the enable path
+ * because it is called from a napi poll
+ * context, where the bna_lock is not held
+ * unlike the IRQ context.
+ */
+static void
+bnad_enable_txrx_irqs(struct bnad *bnad)
+{
+	struct bna_tcb *tcb;
+	struct bna_ccb *ccb;
+	int i, j;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	for (i = 0; i < bnad->num_tx; i++) {
+		for (j = 0; j < bnad->num_txq_per_tx; j++) {
+			tcb = bnad->tx_info[i].tcb[j];
+			bna_ib_coalescing_timer_set(tcb->i_dbell,
+				tcb->txq->ib->ib_config.coalescing_timeo);
+			bna_ib_ack(tcb->i_dbell, 0);
+		}
+	}
+
+	for (i = 0; i < bnad->num_rx; i++) {
+		for (j = 0; j < bnad->num_rxp_per_rx; j++) {
+			ccb = bnad->rx_info[i].rx_ctrl[j].ccb;
+			bnad_enable_rx_irq_unsafe(ccb);
+		}
+	}
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+}
+
+static inline void
+bnad_refill_rxq(struct bnad *bnad, struct bna_rcb *rcb)
+{
+	struct bnad_unmap_q *unmap_q = rcb->unmap_q;
+
+	if (!test_and_set_bit(BNAD_RXQ_REFILL, &rcb->flags)) {
+		if (BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth)
+			 >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT)
+			bnad_alloc_n_post_rxbufs(bnad, rcb);
+		smp_mb__before_clear_bit();
+		clear_bit(BNAD_RXQ_REFILL, &rcb->flags);
+	}
+}
+
+static u32
+bnad_poll_cq(struct bnad *bnad, struct bna_ccb *ccb, int budget)
+{
+	struct bna_cq_entry *cmpl, *next_cmpl;
+	struct bna_rcb *rcb = NULL;
+	unsigned int wi_range, packets = 0, wis = 0;
+	struct bnad_unmap_q *unmap_q;
+	struct sk_buff *skb;
+	u32 flags;
+	u32 qid0 = ccb->rcb[0]->rxq->rxq_id;
+	struct bna_pkt_rate *pkt_rt = &ccb->pkt_rate;
+
+	prefetch(bnad->netdev);
+	BNA_CQ_QPGE_PTR_GET(ccb->producer_index, ccb->sw_qpt, cmpl,
+			    wi_range);
+	BUG_ON(!(wi_range <= ccb->q_depth));
+	while (cmpl->valid && packets < budget) {
+		packets++;
+		BNA_UPDATE_PKT_CNT(pkt_rt, ntohs(cmpl->length));
+
+		if (qid0 == cmpl->rxq_id)
+			rcb = ccb->rcb[0];
+		else
+			rcb = ccb->rcb[1];
+
+		unmap_q = rcb->unmap_q;
+
+		skb = unmap_q->unmap_array[unmap_q->consumer_index].skb;
+		BUG_ON(!(skb));
+		unmap_q->unmap_array[unmap_q->consumer_index].skb = NULL;
+		pci_unmap_single(bnad->pcidev,
+				 pci_unmap_addr(&unmap_q->
+						unmap_array[unmap_q->
+							    consumer_index],
+						dma_addr),
+						rcb->rxq->buffer_size,
+						PCI_DMA_FROMDEVICE);
+		BNA_QE_INDX_ADD(unmap_q->consumer_index, 1, unmap_q->q_depth);
+
+		/* Should be more efficient ? Performance ? */
+		BNA_QE_INDX_ADD(rcb->consumer_index, 1, rcb->q_depth);
+
+		wis++;
+		if (likely(--wi_range))
+			next_cmpl = cmpl + 1;
+		else {
+			BNA_QE_INDX_ADD(ccb->producer_index, wis, ccb->q_depth);
+			wis = 0;
+			BNA_CQ_QPGE_PTR_GET(ccb->producer_index, ccb->sw_qpt,
+						next_cmpl, wi_range);
+			BUG_ON(!(wi_range <= ccb->q_depth));
+		}
+		prefetch(next_cmpl);
+
+		flags = ntohl(cmpl->flags);
+		if (unlikely
+		    (flags &
+		     (BNA_CQ_EF_MAC_ERROR | BNA_CQ_EF_FCS_ERROR |
+		      BNA_CQ_EF_TOO_LONG))) {
+			dev_kfree_skb_any(skb);
+			rcb->rxq->rx_packets_with_error++;
+			goto next;
+		}
+
+		skb_put(skb, ntohs(cmpl->length));
+		if (likely
+		    (bnad->rx_csum &&
+		     (((flags & BNA_CQ_EF_IPV4) &&
+		      (flags & BNA_CQ_EF_L3_CKSUM_OK)) ||
+		      (flags & BNA_CQ_EF_IPV6)) &&
+		      (flags & (BNA_CQ_EF_TCP | BNA_CQ_EF_UDP)) &&
+		      (flags & BNA_CQ_EF_L4_CKSUM_OK)))
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+		else
+			skb->ip_summed = CHECKSUM_NONE;
+
+		rcb->rxq->rx_packets++;
+		rcb->rxq->rx_bytes += skb->len;
+		skb->protocol = eth_type_trans(skb, bnad->netdev);
+
+		if (bnad->vlan_grp && (flags & BNA_CQ_EF_VLAN)) {
+			struct bnad_rx_ctrl *rx_ctrl =
+				(struct bnad_rx_ctrl *)ccb->ctrl;
+			if (skb->ip_summed == CHECKSUM_UNNECESSARY)
+				vlan_gro_receive(&rx_ctrl->napi, bnad->vlan_grp,
+						ntohs(cmpl->vlan_tag), skb);
+			else
+				vlan_hwaccel_receive_skb(skb,
+							 bnad->vlan_grp,
+							 ntohs(cmpl->vlan_tag));
+
+		} else { /* Not VLAN tagged/stripped */
+			struct bnad_rx_ctrl *rx_ctrl =
+				(struct bnad_rx_ctrl *)ccb->ctrl;
+			if (skb->ip_summed == CHECKSUM_UNNECESSARY)
+				napi_gro_receive(&rx_ctrl->napi, skb);
+			else
+				netif_receive_skb(skb);
+		}
+
+next:
+		cmpl->valid = 0;
+		cmpl = next_cmpl;
+	}
+
+	BNA_QE_INDX_ADD(ccb->producer_index, wis, ccb->q_depth);
+
+	if (likely(ccb)) {
+		bna_ib_ack(ccb->i_dbell, packets);
+		bnad_refill_rxq(bnad, ccb->rcb[0]);
+		if (ccb->rcb[1])
+			bnad_refill_rxq(bnad, ccb->rcb[1]);
+	} else
+		bna_ib_ack(ccb->i_dbell, 0);
+
+	return packets;
+}
+
+static void
+bnad_disable_rx_irq(struct bnad *bnad, struct bna_ccb *ccb)
+{
+	bna_ib_coalescing_timer_set(ccb->i_dbell, 0);
+	bna_ib_ack(ccb->i_dbell, 0);
+}
+
+static void
+bnad_enable_rx_irq(struct bnad *bnad, struct bna_ccb *ccb)
+{
+	spin_lock_irq(&bnad->bna_lock); /* Because of polling context */
+	bnad_enable_rx_irq_unsafe(ccb);
+	spin_unlock_irq(&bnad->bna_lock);
+}
+
+static void
+bnad_netif_rx_schedule_poll(struct bnad *bnad, struct bna_ccb *ccb)
+{
+	struct bnad_rx_ctrl *rx_ctrl = (struct bnad_rx_ctrl *)(ccb->ctrl);
+	if (likely(napi_schedule_prep((&rx_ctrl->napi)))) {
+		bnad_disable_rx_irq(bnad, ccb);
+		__napi_schedule((&rx_ctrl->napi));
+	}
+	BNAD_UPDATE_CTR(bnad, netif_rx_schedule);
+}
+
+/* MSIX Rx Path Handler */
+static irqreturn_t
+bnad_msix_rx(int irq, void *data)
+{
+	struct bna_ccb *ccb = (struct bna_ccb *)data;
+	struct bnad *bnad = ccb->bnad;
+
+	bnad_netif_rx_schedule_poll(bnad, ccb);
+
+	return IRQ_HANDLED;
+}
+
+/* Interrupt handlers */
+
+/* Mbox Interrupt Handlers */
+static irqreturn_t
+bnad_msix_mbox_handler(int irq, void *data)
+{
+	u32 intr_status;
+	unsigned long  flags;
+	struct net_device *netdev = data;
+	struct bnad *bnad;
+
+	bnad = netdev_priv(netdev);
+
+	/* BNA_ISR_GET(bnad); Inc Ref count */
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+
+	bna_intr_status_get(&bnad->bna, intr_status);
+
+	if (BNA_IS_MBOX_ERR_INTR(intr_status))
+		bna_mbox_handler(&bnad->bna, intr_status);
+
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	/* BNAD_ISR_PUT(bnad); Dec Ref count */
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t
+bnad_isr(int irq, void *data)
+{
+	int i, j;
+	u32 intr_status;
+	unsigned long flags;
+	struct net_device *netdev = data;
+	struct bnad *bnad = netdev_priv(netdev);
+	struct bnad_rx_info *rx_info;
+	struct bnad_rx_ctrl *rx_ctrl;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+
+	bna_intr_status_get(&bnad->bna, intr_status);
+	if (!intr_status) {
+		spin_unlock_irqrestore(&bnad->bna_lock, flags);
+		return IRQ_NONE;
+	}
+
+	if (BNA_IS_MBOX_ERR_INTR(intr_status)) {
+		bna_mbox_handler(&bnad->bna, intr_status);
+		if (!BNA_IS_INTX_DATA_INTR(intr_status)) {
+			spin_unlock_irqrestore(&bnad->bna_lock, flags);
+			goto done;
+		}
+	}
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	/* Process data interrupts */
+	for (i = 0; i < bnad->num_rx; i++) {
+		rx_info = &bnad->rx_info[i];
+		if (!rx_info->rx)
+			continue;
+		for (j = 0; j < bnad->num_rxp_per_rx; j++) {
+			rx_ctrl = &rx_info->rx_ctrl[j];
+			if (rx_ctrl->ccb)
+				bnad_netif_rx_schedule_poll(bnad,
+							    rx_ctrl->ccb);
+		}
+	}
+done:
+	return IRQ_HANDLED;
+}
+
+/*
+ * Called in interrupt / callback context
+ * with bna_lock held, so cfg_flags access is OK
+ */
+static void
+bnad_enable_mbox_irq(struct bnad *bnad)
+{
+	int irq = BNAD_GET_MBOX_IRQ(bnad);
+
+	if (!(bnad->cfg_flags & BNAD_CF_MSIX))
+		return;
+
+	if (test_and_clear_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))
+		enable_irq(irq);
+	BNAD_UPDATE_CTR(bnad, mbox_intr_enabled);
+}
+
+/*
+ * Called with bnad->bna_lock held b'cos of
+ * bnad->cfg_flags access.
+ */
+void
+bnad_disable_mbox_irq(struct bnad *bnad)
+{
+	int irq = BNAD_GET_MBOX_IRQ(bnad);
+
+	if (!(bnad->cfg_flags & BNAD_CF_MSIX))
+		return;
+
+	if (!test_and_set_bit(BNAD_RF_MBOX_IRQ_DISABLED, &bnad->run_flags))
+		disable_irq_nosync(irq);
+	BNAD_UPDATE_CTR(bnad, mbox_intr_disabled);
+}
+
+/* Control Path Handlers */
+
+/* Callbacks */
+void
+bnad_cb_device_enable_mbox_intr(struct bnad *bnad)
+{
+	bnad_enable_mbox_irq(bnad);
+}
+
+void
+bnad_cb_device_disable_mbox_intr(struct bnad *bnad)
+{
+	bnad_disable_mbox_irq(bnad);
+}
+
+void
+bnad_cb_device_enabled(struct bnad *bnad, enum bna_cb_status status)
+{
+	complete(&bnad->bnad_completions.ioc_comp);
+	bnad->bnad_completions.ioc_comp_status = status;
+}
+
+void
+bnad_cb_device_disabled(struct bnad *bnad, enum bna_cb_status status)
+{
+	complete(&bnad->bnad_completions.ioc_comp);
+	bnad->bnad_completions.ioc_comp_status = status;
+}
+
+static void
+bnad_cb_port_disabled(void *arg, enum bna_cb_status status)
+{
+	struct bnad *bnad = (struct bnad *)arg;
+
+	complete(&bnad->bnad_completions.port_comp);
+
+	netif_carrier_off(bnad->netdev);
+}
+
+void
+bnad_cb_port_link_status(struct bnad *bnad,
+			enum bna_link_status link_status)
+{
+	bool link_up = 0;
+
+	link_up = (link_status == BNA_LINK_UP) || (link_status == BNA_CEE_UP);
+
+	if (link_status == BNA_CEE_UP) {
+		set_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags);
+		BNAD_UPDATE_CTR(bnad, cee_up);
+	} else
+		clear_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags);
+
+	if (link_up) {
+		if (!netif_carrier_ok(bnad->netdev)) {
+			pr_warn("bna: %s link up\n",
+				bnad->netdev->name);
+			netif_carrier_on(bnad->netdev);
+			BNAD_UPDATE_CTR(bnad, link_toggle);
+			if (test_bit(BNAD_RF_TX_STARTED, &bnad->run_flags)) {
+				/* Force an immediate Transmit Schedule */
+				pr_info("bna: %s TX_STARTED\n",
+					bnad->netdev->name);
+				netif_wake_queue(bnad->netdev);
+				BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
+			} else {
+				netif_stop_queue(bnad->netdev);
+				BNAD_UPDATE_CTR(bnad, netif_queue_stop);
+			}
+		}
+	} else {
+		if (netif_carrier_ok(bnad->netdev)) {
+			pr_warn("bna: %s link down\n",
+				bnad->netdev->name);
+			netif_carrier_off(bnad->netdev);
+			BNAD_UPDATE_CTR(bnad, link_toggle);
+		}
+	}
+}
+
+static void
+bnad_cb_tx_disabled(void *arg, struct bna_tx *tx,
+			enum bna_cb_status status)
+{
+	struct bnad *bnad = (struct bnad *)arg;
+
+	complete(&bnad->bnad_completions.tx_comp);
+}
+
+static void
+bnad_cb_tcb_setup(struct bnad *bnad, struct bna_tcb *tcb)
+{
+	struct bnad_tx_info *tx_info =
+			(struct bnad_tx_info *)tcb->txq->tx->priv;
+	struct bnad_unmap_q *unmap_q = tcb->unmap_q;
+
+	tx_info->tcb[tcb->id] = tcb;
+	unmap_q->producer_index = 0;
+	unmap_q->consumer_index = 0;
+	unmap_q->q_depth = BNAD_TX_UNMAPQ_DEPTH;
+}
+
+static void
+bnad_cb_tcb_destroy(struct bnad *bnad, struct bna_tcb *tcb)
+{
+	struct bnad_tx_info *tx_info =
+			(struct bnad_tx_info *)tcb->txq->tx->priv;
+
+	tx_info->tcb[tcb->id] = NULL;
+}
+
+static void
+bnad_cb_rcb_setup(struct bnad *bnad, struct bna_rcb *rcb)
+{
+	struct bnad_unmap_q *unmap_q = rcb->unmap_q;
+
+	unmap_q->producer_index = 0;
+	unmap_q->consumer_index = 0;
+	unmap_q->q_depth = BNAD_RX_UNMAPQ_DEPTH;
+}
+
+static void
+bnad_cb_ccb_setup(struct bnad *bnad, struct bna_ccb *ccb)
+{
+	struct bnad_rx_info *rx_info =
+			(struct bnad_rx_info *)ccb->cq->rx->priv;
+
+	rx_info->rx_ctrl[ccb->id].ccb = ccb;
+	ccb->ctrl = &rx_info->rx_ctrl[ccb->id];
+}
+
+static void
+bnad_cb_ccb_destroy(struct bnad *bnad, struct bna_ccb *ccb)
+{
+	struct bnad_rx_info *rx_info =
+			(struct bnad_rx_info *)ccb->cq->rx->priv;
+
+	rx_info->rx_ctrl[ccb->id].ccb = NULL;
+}
+
+static void
+bnad_cb_tx_stall(struct bnad *bnad, struct bna_tcb *tcb)
+{
+	struct bnad_tx_info *tx_info =
+			(struct bnad_tx_info *)tcb->txq->tx->priv;
+
+	if (tx_info != &bnad->tx_info[0])
+		return;
+
+	clear_bit(BNAD_RF_TX_STARTED, &bnad->run_flags);
+	netif_stop_queue(bnad->netdev);
+	pr_info("bna: %s TX_STOPPED\n", bnad->netdev->name);
+}
+
+static void
+bnad_cb_tx_resume(struct bnad *bnad, struct bna_tcb *tcb)
+{
+	if (test_and_set_bit(BNAD_RF_TX_STARTED, &bnad->run_flags))
+		return;
+
+	if (netif_carrier_ok(bnad->netdev)) {
+		pr_info("bna: %s TX_STARTED\n", bnad->netdev->name);
+		netif_wake_queue(bnad->netdev);
+		BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
+	}
+}
+
+static void
+bnad_cb_tx_cleanup(struct bnad *bnad, struct bna_tcb *tcb)
+{
+	struct bnad_unmap_q *unmap_q = tcb->unmap_q;
+
+	if (!tcb || (!tcb->unmap_q))
+		return;
+
+	if (!unmap_q->unmap_array)
+		return;
+
+	if (test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags))
+		return;
+
+	bnad_free_all_txbufs(bnad, tcb);
+
+	unmap_q->producer_index = 0;
+	unmap_q->consumer_index = 0;
+
+	smp_mb__before_clear_bit();
+	clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
+}
+
+static void
+bnad_cb_rx_cleanup(struct bnad *bnad,
+			struct bna_ccb *ccb)
+{
+	bnad_cq_cmpl_init(bnad, ccb);
+
+	bnad_free_rxbufs(bnad, ccb->rcb[0]);
+	clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[0]->flags);
+
+	if (ccb->rcb[1]) {
+		bnad_free_rxbufs(bnad, ccb->rcb[1]);
+		clear_bit(BNAD_RXQ_STARTED, &ccb->rcb[1]->flags);
+	}
+}
+
+static void
+bnad_cb_rx_post(struct bnad *bnad, struct bna_rcb *rcb)
+{
+	struct bnad_unmap_q *unmap_q = rcb->unmap_q;
+
+	set_bit(BNAD_RXQ_STARTED, &rcb->flags);
+
+	/* Now allocate & post buffers for this RCB */
+	/* !!Allocation in callback context */
+	if (!test_and_set_bit(BNAD_RXQ_REFILL, &rcb->flags)) {
+		if (BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth)
+			 >> BNAD_RXQ_REFILL_THRESHOLD_SHIFT)
+			bnad_alloc_n_post_rxbufs(bnad, rcb);
+		smp_mb__before_clear_bit();
+		clear_bit(BNAD_RXQ_REFILL, &rcb->flags);
+	}
+}
+
+static void
+bnad_cb_rx_disabled(void *arg, struct bna_rx *rx,
+			enum bna_cb_status status)
+{
+	struct bnad *bnad = (struct bnad *)arg;
+
+	complete(&bnad->bnad_completions.rx_comp);
+}
+
+static void
+bnad_cb_rx_mcast_add(struct bnad *bnad, struct bna_rx *rx,
+				enum bna_cb_status status)
+{
+	bnad->bnad_completions.mcast_comp_status = status;
+	complete(&bnad->bnad_completions.mcast_comp);
+}
+
+void
+bnad_cb_stats_get(struct bnad *bnad, enum bna_cb_status status,
+		       struct bna_stats *stats)
+{
+	if (status == BNA_CB_SUCCESS)
+		BNAD_UPDATE_CTR(bnad, hw_stats_updates);
+
+	if (!netif_running(bnad->netdev) ||
+		!test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags))
+		return;
+
+	mod_timer(&bnad->stats_timer,
+		  jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ));
+}
+
+void
+bnad_cb_stats_clr(struct bnad *bnad)
+{
+}
+
+/* Resource allocation, free functions */
+
+static void
+bnad_mem_free(struct bnad *bnad,
+	      struct bna_mem_info *mem_info)
+{
+	int i;
+	dma_addr_t dma_pa;
+
+	if (mem_info->mdl == NULL)
+		return;
+
+	for (i = 0; i < mem_info->num; i++) {
+		if (mem_info->mdl[i].kva != NULL) {
+			if (mem_info->mem_type == BNA_MEM_T_DMA) {
+				BNA_GET_DMA_ADDR(&(mem_info->mdl[i].dma),
+						dma_pa);
+				pci_free_consistent(bnad->pcidev,
+						mem_info->mdl[i].len,
+						mem_info->mdl[i].kva, dma_pa);
+			} else
+				kfree(mem_info->mdl[i].kva);
+		}
+	}
+	kfree(mem_info->mdl);
+	mem_info->mdl = NULL;
+}
+
+static int
+bnad_mem_alloc(struct bnad *bnad,
+	       struct bna_mem_info *mem_info)
+{
+	int i;
+	dma_addr_t dma_pa;
+
+	if ((mem_info->num == 0) || (mem_info->len == 0)) {
+		mem_info->mdl = NULL;
+		return 0;
+	}
+
+	mem_info->mdl = kcalloc(mem_info->num, sizeof(struct bna_mem_descr),
+				GFP_KERNEL);
+	if (mem_info->mdl == NULL)
+		return -ENOMEM;
+
+	if (mem_info->mem_type == BNA_MEM_T_DMA) {
+		for (i = 0; i < mem_info->num; i++) {
+			mem_info->mdl[i].len = mem_info->len;
+			mem_info->mdl[i].kva =
+				pci_alloc_consistent(bnad->pcidev,
+						mem_info->len, &dma_pa);
+
+			if (mem_info->mdl[i].kva == NULL)
+				goto err_return;
+
+			BNA_SET_DMA_ADDR(dma_pa,
+					 &(mem_info->mdl[i].dma));
+		}
+	} else {
+		for (i = 0; i < mem_info->num; i++) {
+			mem_info->mdl[i].len = mem_info->len;
+			mem_info->mdl[i].kva = kzalloc(mem_info->len,
+							GFP_KERNEL);
+			if (mem_info->mdl[i].kva == NULL)
+				goto err_return;
+		}
+	}
+
+	return 0;
+
+err_return:
+	bnad_mem_free(bnad, mem_info);
+	return -ENOMEM;
+}
+
+/* Free IRQ for Mailbox */
+static void
+bnad_mbox_irq_free(struct bnad *bnad,
+		   struct bna_intr_info *intr_info)
+{
+	int irq;
+	unsigned long flags;
+
+	if (intr_info->idl == NULL)
+		return;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+
+	bnad_disable_mbox_irq(bnad);
+
+	irq = BNAD_GET_MBOX_IRQ(bnad);
+	free_irq(irq, bnad->netdev);
+
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	kfree(intr_info->idl);
+}
+
+/*
+ * Allocates IRQ for Mailbox, but keep it disabled
+ * This will be enabled once we get the mbox enable callback
+ * from bna
+ */
+static int
+bnad_mbox_irq_alloc(struct bnad *bnad,
+		    struct bna_intr_info *intr_info)
+{
+	int 		err;
+	unsigned long 	flags;
+	u32	irq;
+	irq_handler_t 	irq_handler;
+
+	/* Mbox should use only 1 vector */
+
+	intr_info->idl = kzalloc(sizeof(*(intr_info->idl)), GFP_KERNEL);
+	if (!intr_info->idl)
+		return -ENOMEM;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	if (bnad->cfg_flags & BNAD_CF_MSIX) {
+		irq_handler = (irq_handler_t)bnad_msix_mbox_handler;
+		irq = bnad->msix_table[bnad->msix_num - 1].vector;
+		flags = 0;
+		intr_info->intr_type = BNA_INTR_T_MSIX;
+		intr_info->idl[0].vector = bnad->msix_num - 1;
+	} else {
+		irq_handler = (irq_handler_t)bnad_isr;
+		irq = bnad->pcidev->irq;
+		flags = IRQF_SHARED;
+		intr_info->intr_type = BNA_INTR_T_INTX;
+		/* intr_info->idl.vector = 0 ? */
+	}
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	sprintf(bnad->mbox_irq_name, "%s", BNAD_NAME);
+
+	err = request_irq(irq, irq_handler, flags,
+			  bnad->mbox_irq_name, bnad->netdev);
+	if (err) {
+		kfree(intr_info->idl);
+		intr_info->idl = NULL;
+		return err;
+	}
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bnad_disable_mbox_irq(bnad);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+	return 0;
+}
+
+static void
+bnad_txrx_irq_free(struct bnad *bnad, struct bna_intr_info *intr_info)
+{
+	kfree(intr_info->idl);
+	intr_info->idl = NULL;
+}
+
+/* Allocates Interrupt Descriptor List for MSIX/INT-X vectors */
+static int
+bnad_txrx_irq_alloc(struct bnad *bnad, enum bnad_intr_source src,
+		    uint txrx_id, struct bna_intr_info *intr_info)
+{
+	int i, vector_start = 0;
+	u32 cfg_flags;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	cfg_flags = bnad->cfg_flags;
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	if (cfg_flags & BNAD_CF_MSIX) {
+		intr_info->intr_type = BNA_INTR_T_MSIX;
+		intr_info->idl = kcalloc(intr_info->num,
+					sizeof(struct bna_intr_descr),
+					GFP_KERNEL);
+		if (!intr_info->idl)
+			return -ENOMEM;
+
+		switch (src) {
+		case BNAD_INTR_TX:
+			vector_start = txrx_id;
+			break;
+
+		case BNAD_INTR_RX:
+			vector_start = bnad->num_tx * bnad->num_txq_per_tx +
+					txrx_id;
+			break;
+
+		default:
+			BUG();
+		}
+
+		for (i = 0; i < intr_info->num; i++)
+			intr_info->idl[i].vector = vector_start + i;
+	} else {
+		intr_info->intr_type = BNA_INTR_T_INTX;
+		intr_info->num = 1;
+		intr_info->idl = kcalloc(intr_info->num,
+					sizeof(struct bna_intr_descr),
+					GFP_KERNEL);
+		if (!intr_info->idl)
+			return -ENOMEM;
+
+		switch (src) {
+		case BNAD_INTR_TX:
+			intr_info->idl[0].vector = 0x1; /* Bit mask : Tx IB */
+			break;
+
+		case BNAD_INTR_RX:
+			intr_info->idl[0].vector = 0x2; /* Bit mask : Rx IB */
+			break;
+		}
+	}
+	return 0;
+}
+
+/**
+ * NOTE: Should be called for MSIX only
+ * Unregisters Tx MSIX vector(s) from the kernel
+ */
+static void
+bnad_tx_msix_unregister(struct bnad *bnad, struct bnad_tx_info *tx_info,
+			int num_txqs)
+{
+	int i;
+	int vector_num;
+
+	for (i = 0; i < num_txqs; i++) {
+		if (tx_info->tcb[i] == NULL)
+			continue;
+
+		vector_num = tx_info->tcb[i]->intr_vector;
+		free_irq(bnad->msix_table[vector_num].vector, tx_info->tcb[i]);
+	}
+}
+
+/**
+ * NOTE: Should be called for MSIX only
+ * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel
+ */
+static int
+bnad_tx_msix_register(struct bnad *bnad, struct bnad_tx_info *tx_info,
+			uint tx_id, int num_txqs)
+{
+	int i;
+	int err;
+	int vector_num;
+
+	for (i = 0; i < num_txqs; i++) {
+		vector_num = tx_info->tcb[i]->intr_vector;
+		sprintf(tx_info->tcb[i]->name, "%s TXQ %d", bnad->netdev->name,
+				tx_id + tx_info->tcb[i]->id);
+		err = request_irq(bnad->msix_table[vector_num].vector,
+				  (irq_handler_t)bnad_msix_tx, 0,
+				  tx_info->tcb[i]->name,
+				  tx_info->tcb[i]);
+		if (err)
+			goto err_return;
+	}
+
+	return 0;
+
+err_return:
+	if (i > 0)
+		bnad_tx_msix_unregister(bnad, tx_info, (i - 1));
+	return -1;
+}
+
+/**
+ * NOTE: Should be called for MSIX only
+ * Unregisters Rx MSIX vector(s) from the kernel
+ */
+static void
+bnad_rx_msix_unregister(struct bnad *bnad, struct bnad_rx_info *rx_info,
+			int num_rxps)
+{
+	int i;
+	int vector_num;
+
+	for (i = 0; i < num_rxps; i++) {
+		if (rx_info->rx_ctrl[i].ccb == NULL)
+			continue;
+
+		vector_num = rx_info->rx_ctrl[i].ccb->intr_vector;
+		free_irq(bnad->msix_table[vector_num].vector,
+			 rx_info->rx_ctrl[i].ccb);
+	}
+}
+
+/**
+ * NOTE: Should be called for MSIX only
+ * Registers Tx MSIX vector(s) and ISR(s), cookie with the kernel
+ */
+static int
+bnad_rx_msix_register(struct bnad *bnad, struct bnad_rx_info *rx_info,
+			uint rx_id, int num_rxps)
+{
+	int i;
+	int err;
+	int vector_num;
+
+	for (i = 0; i < num_rxps; i++) {
+		vector_num = rx_info->rx_ctrl[i].ccb->intr_vector;
+		sprintf(rx_info->rx_ctrl[i].ccb->name, "%s CQ %d",
+			bnad->netdev->name,
+			rx_id + rx_info->rx_ctrl[i].ccb->id);
+		err = request_irq(bnad->msix_table[vector_num].vector,
+				  (irq_handler_t)bnad_msix_rx, 0,
+				  rx_info->rx_ctrl[i].ccb->name,
+				  rx_info->rx_ctrl[i].ccb);
+		if (err)
+			goto err_return;
+	}
+
+	return 0;
+
+err_return:
+	if (i > 0)
+		bnad_rx_msix_unregister(bnad, rx_info, (i - 1));
+	return -1;
+}
+
+/* Free Tx object Resources */
+static void
+bnad_tx_res_free(struct bnad *bnad, struct bna_res_info *res_info)
+{
+	int i;
+
+	for (i = 0; i < BNA_TX_RES_T_MAX; i++) {
+		if (res_info[i].res_type == BNA_RES_T_MEM)
+			bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
+		else if (res_info[i].res_type == BNA_RES_T_INTR)
+			bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info);
+	}
+}
+
+/* Allocates memory and interrupt resources for Tx object */
+static int
+bnad_tx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info,
+		  uint tx_id)
+{
+	int i, err = 0;
+
+	for (i = 0; i < BNA_TX_RES_T_MAX; i++) {
+		if (res_info[i].res_type == BNA_RES_T_MEM)
+			err = bnad_mem_alloc(bnad,
+					&res_info[i].res_u.mem_info);
+		else if (res_info[i].res_type == BNA_RES_T_INTR)
+			err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_TX, tx_id,
+					&res_info[i].res_u.intr_info);
+		if (err)
+			goto err_return;
+	}
+	return 0;
+
+err_return:
+	bnad_tx_res_free(bnad, res_info);
+	return err;
+}
+
+/* Free Rx object Resources */
+static void
+bnad_rx_res_free(struct bnad *bnad, struct bna_res_info *res_info)
+{
+	int i;
+
+	for (i = 0; i < BNA_RX_RES_T_MAX; i++) {
+		if (res_info[i].res_type == BNA_RES_T_MEM)
+			bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
+		else if (res_info[i].res_type == BNA_RES_T_INTR)
+			bnad_txrx_irq_free(bnad, &res_info[i].res_u.intr_info);
+	}
+}
+
+/* Allocates memory and interrupt resources for Rx object */
+static int
+bnad_rx_res_alloc(struct bnad *bnad, struct bna_res_info *res_info,
+		  uint rx_id)
+{
+	int i, err = 0;
+
+	/* All memory needs to be allocated before setup_ccbs */
+	for (i = 0; i < BNA_RX_RES_T_MAX; i++) {
+		if (res_info[i].res_type == BNA_RES_T_MEM)
+			err = bnad_mem_alloc(bnad,
+					&res_info[i].res_u.mem_info);
+		else if (res_info[i].res_type == BNA_RES_T_INTR)
+			err = bnad_txrx_irq_alloc(bnad, BNAD_INTR_RX, rx_id,
+					&res_info[i].res_u.intr_info);
+		if (err)
+			goto err_return;
+	}
+	return 0;
+
+err_return:
+	bnad_rx_res_free(bnad, res_info);
+	return err;
+}
+
+/* Timer callbacks */
+/* a) IOC timer */
+static void
+bnad_ioc_timeout(unsigned long data)
+{
+	struct bnad *bnad = (struct bnad *)data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bfa_ioc_timeout((void *) &bnad->bna.device.ioc);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+}
+
+static void
+bnad_ioc_hb_check(unsigned long data)
+{
+	struct bnad *bnad = (struct bnad *)data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bfa_ioc_hb_check((void *) &bnad->bna.device.ioc);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+}
+
+static void
+bnad_ioc_sem_timeout(unsigned long data)
+{
+	struct bnad *bnad = (struct bnad *)data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bfa_ioc_sem_timeout((void *) &bnad->bna.device.ioc);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+}
+
+/*
+ * All timer routines use bnad->bna_lock to protect against
+ * the following race, which may occur in case of no locking:
+ * 	Time	CPU m  		CPU n
+ *	0       1 = test_bit
+ *	1			clear_bit
+ *	2			del_timer_sync
+ *	3	mod_timer
+ */
+
+/* b) Dynamic Interrupt Moderation Timer */
+static void
+bnad_dim_timeout(unsigned long data)
+{
+	struct bnad *bnad = (struct bnad *)data;
+	struct bnad_rx_info *rx_info;
+	struct bnad_rx_ctrl *rx_ctrl;
+	int i, j;
+	unsigned long flags;
+
+	if (!netif_carrier_ok(bnad->netdev))
+		return;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	for (i = 0; i < bnad->num_rx; i++) {
+		rx_info = &bnad->rx_info[i];
+		if (!rx_info->rx)
+			continue;
+		for (j = 0; j < bnad->num_rxp_per_rx; j++) {
+			rx_ctrl = &rx_info->rx_ctrl[j];
+			if (!rx_ctrl->ccb)
+				continue;
+			bna_rx_dim_update(rx_ctrl->ccb);
+		}
+	}
+
+	/* Check for BNAD_CF_DIM_ENABLED, does not eleminate a race */
+	if (test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags))
+		mod_timer(&bnad->dim_timer,
+			  jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ));
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+}
+
+/* c)  Statistics Timer */
+static void
+bnad_stats_timeout(unsigned long data)
+{
+	struct bnad *bnad = (struct bnad *)data;
+	unsigned long flags;
+
+	if (!netif_running(bnad->netdev) ||
+		!test_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags))
+		return;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_stats_get(&bnad->bna);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+}
+
+/*
+ * Set up timer for DIM
+ * Called with bnad->bna_lock held
+ */
+void
+bnad_dim_timer_start(struct bnad *bnad)
+{
+	if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED &&
+	    !test_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags)) {
+		setup_timer(&bnad->dim_timer, bnad_dim_timeout,
+			    (unsigned long)bnad);
+		set_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags);
+		mod_timer(&bnad->dim_timer,
+			  jiffies + msecs_to_jiffies(BNAD_DIM_TIMER_FREQ));
+	}
+}
+
+/*
+ * Set up timer for statistics
+ * Called with mutex_lock(&bnad->conf_mutex) held
+ */
+static void
+bnad_stats_timer_start(struct bnad *bnad)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	if (!test_and_set_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags)) {
+		setup_timer(&bnad->stats_timer, bnad_stats_timeout,
+			    (unsigned long)bnad);
+		mod_timer(&bnad->stats_timer,
+			  jiffies + msecs_to_jiffies(BNAD_STATS_TIMER_FREQ));
+	}
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+}
+
+/*
+ * Stops the stats timer
+ * Called with mutex_lock(&bnad->conf_mutex) held
+ */
+static void
+bnad_stats_timer_stop(struct bnad *bnad)
+{
+	int to_del = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	if (test_and_clear_bit(BNAD_RF_STATS_TIMER_RUNNING, &bnad->run_flags))
+		to_del = 1;
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+	if (to_del)
+		del_timer_sync(&bnad->stats_timer);
+}
+
+/* Utilities */
+
+static void
+bnad_netdev_mc_list_get(struct net_device *netdev, u8 *mc_list)
+{
+	int i = 1; /* Index 0 has broadcast address */
+	struct netdev_hw_addr *mc_addr;
+
+	netdev_for_each_mc_addr(mc_addr, netdev) {
+		memcpy(&mc_list[i * ETH_ALEN], &mc_addr->addr[0],
+							ETH_ALEN);
+		i++;
+	}
+}
+
+static int
+bnad_napi_poll_rx(struct napi_struct *napi, int budget)
+{
+	struct bnad_rx_ctrl *rx_ctrl =
+		container_of(napi, struct bnad_rx_ctrl, napi);
+	struct bna_ccb *ccb;
+	struct bnad *bnad;
+	int rcvd = 0;
+
+	ccb = rx_ctrl->ccb;
+
+	bnad = ccb->bnad;
+
+	if (!netif_carrier_ok(bnad->netdev))
+		goto poll_exit;
+
+	rcvd = bnad_poll_cq(bnad, ccb, budget);
+	if (rcvd == budget)
+		return rcvd;
+
+poll_exit:
+	napi_complete((napi));
+
+	BNAD_UPDATE_CTR(bnad, netif_rx_complete);
+
+	bnad_enable_rx_irq(bnad, ccb);
+	return rcvd;
+}
+
+static int
+bnad_napi_poll_txrx(struct napi_struct *napi, int budget)
+{
+	struct bnad_rx_ctrl *rx_ctrl =
+		container_of(napi, struct bnad_rx_ctrl, napi);
+	struct bna_ccb *ccb;
+	struct bnad *bnad;
+	int 			rcvd = 0;
+	int			i, j;
+
+	ccb = rx_ctrl->ccb;
+
+	bnad = ccb->bnad;
+
+	if (!netif_carrier_ok(bnad->netdev))
+		goto poll_exit;
+
+	/* Handle Tx Completions, if any */
+	for (i = 0; i < bnad->num_tx; i++) {
+		for (j = 0; j < bnad->num_txq_per_tx; j++)
+			bnad_tx(bnad, bnad->tx_info[i].tcb[j]);
+	}
+
+	/* Handle Rx Completions */
+	rcvd = bnad_poll_cq(bnad, ccb, budget);
+	if (rcvd == budget)
+		return rcvd;
+poll_exit:
+	napi_complete((napi));
+
+	BNAD_UPDATE_CTR(bnad, netif_rx_complete);
+
+	bnad_enable_txrx_irqs(bnad);
+	return rcvd;
+}
+
+static void
+bnad_napi_enable(struct bnad *bnad, u32 rx_id)
+{
+	int (*napi_poll) (struct napi_struct *, int);
+	struct bnad_rx_ctrl *rx_ctrl;
+	int i;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	if (bnad->cfg_flags & BNAD_CF_MSIX)
+		napi_poll = bnad_napi_poll_rx;
+	else
+		napi_poll = bnad_napi_poll_txrx;
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	/* Initialize & enable NAPI */
+	for (i = 0; i <	bnad->num_rxp_per_rx; i++) {
+		rx_ctrl = &bnad->rx_info[rx_id].rx_ctrl[i];
+		netif_napi_add(bnad->netdev, &rx_ctrl->napi,
+			       napi_poll, 64);
+		napi_enable(&rx_ctrl->napi);
+	}
+}
+
+static void
+bnad_napi_disable(struct bnad *bnad, u32 rx_id)
+{
+	int i;
+
+	/* First disable and then clean up */
+	for (i = 0; i < bnad->num_rxp_per_rx; i++) {
+		napi_disable(&bnad->rx_info[rx_id].rx_ctrl[i].napi);
+		netif_napi_del(&bnad->rx_info[rx_id].rx_ctrl[i].napi);
+	}
+}
+
+/* Should be held with conf_lock held */
+void
+bnad_cleanup_tx(struct bnad *bnad, uint tx_id)
+{
+	struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id];
+	struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0];
+	unsigned long flags;
+
+	if (!tx_info->tx)
+		return;
+
+	init_completion(&bnad->bnad_completions.tx_comp);
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_tx_disable(tx_info->tx, BNA_HARD_CLEANUP, bnad_cb_tx_disabled);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+	wait_for_completion(&bnad->bnad_completions.tx_comp);
+
+	if (tx_info->tcb[0]->intr_type == BNA_INTR_T_MSIX)
+		bnad_tx_msix_unregister(bnad, tx_info,
+			bnad->num_txq_per_tx);
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_tx_destroy(tx_info->tx);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	tx_info->tx = NULL;
+
+	if (0 == tx_id)
+		tasklet_kill(&bnad->tx_free_tasklet);
+
+	bnad_tx_res_free(bnad, res_info);
+}
+
+/* Should be held with conf_lock held */
+int
+bnad_setup_tx(struct bnad *bnad, uint tx_id)
+{
+	int err;
+	struct bnad_tx_info *tx_info = &bnad->tx_info[tx_id];
+	struct bna_res_info *res_info = &bnad->tx_res_info[tx_id].res_info[0];
+	struct bna_intr_info *intr_info =
+			&res_info[BNA_TX_RES_INTR_T_TXCMPL].res_u.intr_info;
+	struct bna_tx_config *tx_config = &bnad->tx_config[tx_id];
+	struct bna_tx_event_cbfn tx_cbfn;
+	struct bna_tx *tx;
+	unsigned long flags;
+
+	/* Initialize the Tx object configuration */
+	tx_config->num_txq = bnad->num_txq_per_tx;
+	tx_config->txq_depth = bnad->txq_depth;
+	tx_config->tx_type = BNA_TX_T_REGULAR;
+
+	/* Initialize the tx event handlers */
+	tx_cbfn.tcb_setup_cbfn = bnad_cb_tcb_setup;
+	tx_cbfn.tcb_destroy_cbfn = bnad_cb_tcb_destroy;
+	tx_cbfn.tx_stall_cbfn = bnad_cb_tx_stall;
+	tx_cbfn.tx_resume_cbfn = bnad_cb_tx_resume;
+	tx_cbfn.tx_cleanup_cbfn = bnad_cb_tx_cleanup;
+
+	/* Get BNA's resource requirement for one tx object */
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_tx_res_req(bnad->num_txq_per_tx,
+		bnad->txq_depth, res_info);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	/* Fill Unmap Q memory requirements */
+	BNAD_FILL_UNMAPQ_MEM_REQ(
+			&res_info[BNA_TX_RES_MEM_T_UNMAPQ],
+			bnad->num_txq_per_tx,
+			BNAD_TX_UNMAPQ_DEPTH);
+
+	/* Allocate resources */
+	err = bnad_tx_res_alloc(bnad, res_info, tx_id);
+	if (err)
+		return err;
+
+	/* Ask BNA to create one Tx object, supplying required resources */
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	tx = bna_tx_create(&bnad->bna, bnad, tx_config, &tx_cbfn, res_info,
+			tx_info);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+	if (!tx)
+		goto err_return;
+	tx_info->tx = tx;
+
+	/* Register ISR for the Tx object */
+	if (intr_info->intr_type == BNA_INTR_T_MSIX) {
+		err = bnad_tx_msix_register(bnad, tx_info,
+			tx_id, bnad->num_txq_per_tx);
+		if (err)
+			goto err_return;
+	}
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_tx_enable(tx);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	return 0;
+
+err_return:
+	bnad_tx_res_free(bnad, res_info);
+	return err;
+}
+
+/* Setup the rx config for bna_rx_create */
+/* bnad decides the configuration */
+static void
+bnad_init_rx_config(struct bnad *bnad, struct bna_rx_config *rx_config)
+{
+	rx_config->rx_type = BNA_RX_T_REGULAR;
+	rx_config->num_paths = bnad->num_rxp_per_rx;
+
+	if (bnad->num_rxp_per_rx > 1) {
+		rx_config->rss_status = BNA_STATUS_T_ENABLED;
+		rx_config->rss_config.hash_type =
+				(BFI_RSS_T_V4_TCP |
+				 BFI_RSS_T_V6_TCP |
+				 BFI_RSS_T_V4_IP  |
+				 BFI_RSS_T_V6_IP);
+		rx_config->rss_config.hash_mask =
+				bnad->num_rxp_per_rx - 1;
+		get_random_bytes(rx_config->rss_config.toeplitz_hash_key,
+			sizeof(rx_config->rss_config.toeplitz_hash_key));
+	} else {
+		rx_config->rss_status = BNA_STATUS_T_DISABLED;
+		memset(&rx_config->rss_config, 0,
+		       sizeof(rx_config->rss_config));
+	}
+	rx_config->rxp_type = BNA_RXP_SLR;
+	rx_config->q_depth = bnad->rxq_depth;
+
+	rx_config->small_buff_size = BFI_SMALL_RXBUF_SIZE;
+
+	rx_config->vlan_strip_status = BNA_STATUS_T_ENABLED;
+}
+
+/* Called with mutex_lock(&bnad->conf_mutex) held */
+void
+bnad_cleanup_rx(struct bnad *bnad, uint rx_id)
+{
+	struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id];
+	struct bna_rx_config *rx_config = &bnad->rx_config[rx_id];
+	struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0];
+	unsigned long flags;
+	int dim_timer_del = 0;
+
+	if (!rx_info->rx)
+		return;
+
+	if (0 == rx_id) {
+		spin_lock_irqsave(&bnad->bna_lock, flags);
+		dim_timer_del = bnad_dim_timer_running(bnad);
+		if (dim_timer_del)
+			clear_bit(BNAD_RF_DIM_TIMER_RUNNING, &bnad->run_flags);
+		spin_unlock_irqrestore(&bnad->bna_lock, flags);
+		if (dim_timer_del)
+			del_timer_sync(&bnad->dim_timer);
+	}
+
+	bnad_napi_disable(bnad, rx_id);
+
+	init_completion(&bnad->bnad_completions.rx_comp);
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_rx_disable(rx_info->rx, BNA_HARD_CLEANUP, bnad_cb_rx_disabled);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+	wait_for_completion(&bnad->bnad_completions.rx_comp);
+
+	if (rx_info->rx_ctrl[0].ccb->intr_type == BNA_INTR_T_MSIX)
+		bnad_rx_msix_unregister(bnad, rx_info, rx_config->num_paths);
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_rx_destroy(rx_info->rx);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	rx_info->rx = NULL;
+
+	bnad_rx_res_free(bnad, res_info);
+}
+
+/* Called with mutex_lock(&bnad->conf_mutex) held */
+int
+bnad_setup_rx(struct bnad *bnad, uint rx_id)
+{
+	int err;
+	struct bnad_rx_info *rx_info = &bnad->rx_info[rx_id];
+	struct bna_res_info *res_info = &bnad->rx_res_info[rx_id].res_info[0];
+	struct bna_intr_info *intr_info =
+			&res_info[BNA_RX_RES_T_INTR].res_u.intr_info;
+	struct bna_rx_config *rx_config = &bnad->rx_config[rx_id];
+	struct bna_rx_event_cbfn rx_cbfn;
+	struct bna_rx *rx;
+	unsigned long flags;
+
+	/* Initialize the Rx object configuration */
+	bnad_init_rx_config(bnad, rx_config);
+
+	/* Initialize the Rx event handlers */
+	rx_cbfn.rcb_setup_cbfn = bnad_cb_rcb_setup;
+	rx_cbfn.rcb_destroy_cbfn = NULL;
+	rx_cbfn.ccb_setup_cbfn = bnad_cb_ccb_setup;
+	rx_cbfn.ccb_destroy_cbfn = bnad_cb_ccb_destroy;
+	rx_cbfn.rx_cleanup_cbfn = bnad_cb_rx_cleanup;
+	rx_cbfn.rx_post_cbfn = bnad_cb_rx_post;
+
+	/* Get BNA's resource requirement for one Rx object */
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_rx_res_req(rx_config, res_info);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	/* Fill Unmap Q memory requirements */
+	BNAD_FILL_UNMAPQ_MEM_REQ(
+			&res_info[BNA_RX_RES_MEM_T_UNMAPQ],
+			rx_config->num_paths +
+			((rx_config->rxp_type == BNA_RXP_SINGLE) ? 0 :
+				rx_config->num_paths), BNAD_RX_UNMAPQ_DEPTH);
+
+	/* Allocate resource */
+	err = bnad_rx_res_alloc(bnad, res_info, rx_id);
+	if (err)
+		return err;
+
+	/* Ask BNA to create one Rx object, supplying required resources */
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	rx = bna_rx_create(&bnad->bna, bnad, rx_config, &rx_cbfn, res_info,
+			rx_info);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+	if (!rx)
+		goto err_return;
+	rx_info->rx = rx;
+
+	/* Register ISR for the Rx object */
+	if (intr_info->intr_type == BNA_INTR_T_MSIX) {
+		err = bnad_rx_msix_register(bnad, rx_info, rx_id,
+						rx_config->num_paths);
+		if (err)
+			goto err_return;
+	}
+
+	/* Enable NAPI */
+	bnad_napi_enable(bnad, rx_id);
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	if (0 == rx_id) {
+		/* Set up Dynamic Interrupt Moderation Vector */
+		if (bnad->cfg_flags & BNAD_CF_DIM_ENABLED)
+			bna_rx_dim_reconfig(&bnad->bna, bna_napi_dim_vector);
+
+		/* Enable VLAN filtering only on the default Rx */
+		bna_rx_vlanfilter_enable(rx);
+
+		/* Start the DIM timer */
+		bnad_dim_timer_start(bnad);
+	}
+
+	bna_rx_enable(rx);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	return 0;
+
+err_return:
+	bnad_cleanup_rx(bnad, rx_id);
+	return err;
+}
+
+/* Called with conf_lock & bnad->bna_lock held */
+void
+bnad_tx_coalescing_timeo_set(struct bnad *bnad)
+{
+	struct bnad_tx_info *tx_info;
+
+	tx_info = &bnad->tx_info[0];
+	if (!tx_info->tx)
+		return;
+
+	bna_tx_coalescing_timeo_set(tx_info->tx, bnad->tx_coalescing_timeo);
+}
+
+/* Called with conf_lock & bnad->bna_lock held */
+void
+bnad_rx_coalescing_timeo_set(struct bnad *bnad)
+{
+	struct bnad_rx_info *rx_info;
+	int 	i;
+
+	for (i = 0; i < bnad->num_rx; i++) {
+		rx_info = &bnad->rx_info[i];
+		if (!rx_info->rx)
+			continue;
+		bna_rx_coalescing_timeo_set(rx_info->rx,
+				bnad->rx_coalescing_timeo);
+	}
+}
+
+/*
+ * Called with bnad->bna_lock held
+ */
+static int
+bnad_mac_addr_set_locked(struct bnad *bnad, u8 *mac_addr)
+{
+	int ret;
+
+	if (!is_valid_ether_addr(mac_addr))
+		return -EADDRNOTAVAIL;
+
+	/* If datapath is down, pretend everything went through */
+	if (!bnad->rx_info[0].rx)
+		return 0;
+
+	ret = bna_rx_ucast_set(bnad->rx_info[0].rx, mac_addr, NULL);
+	if (ret != BNA_CB_SUCCESS)
+		return -EADDRNOTAVAIL;
+
+	return 0;
+}
+
+/* Should be called with conf_lock held */
+static int
+bnad_enable_default_bcast(struct bnad *bnad)
+{
+	struct bnad_rx_info *rx_info = &bnad->rx_info[0];
+	int ret;
+	unsigned long flags;
+
+	init_completion(&bnad->bnad_completions.mcast_comp);
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	ret = bna_rx_mcast_add(rx_info->rx, (u8 *)bnad_bcast_addr,
+				bnad_cb_rx_mcast_add);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	if (ret == BNA_CB_SUCCESS)
+		wait_for_completion(&bnad->bnad_completions.mcast_comp);
+	else
+		return -ENODEV;
+
+	if (bnad->bnad_completions.mcast_comp_status != BNA_CB_SUCCESS)
+		return -ENODEV;
+
+	return 0;
+}
+
+/* Statistics utilities */
+void
+bnad_netdev_qstats_fill(struct bnad *bnad)
+{
+	struct net_device_stats *net_stats = &bnad->net_stats;
+	int i, j;
+
+	for (i = 0; i < bnad->num_rx; i++) {
+		for (j = 0; j < bnad->num_rxp_per_rx; j++) {
+			if (bnad->rx_info[i].rx_ctrl[j].ccb) {
+				net_stats->rx_packets += bnad->rx_info[i].
+				rx_ctrl[j].ccb->rcb[0]->rxq->rx_packets;
+				net_stats->rx_bytes += bnad->rx_info[i].
+					rx_ctrl[j].ccb->rcb[0]->rxq->rx_bytes;
+				if (bnad->rx_info[i].rx_ctrl[j].ccb->rcb[1] &&
+					bnad->rx_info[i].rx_ctrl[j].ccb->
+					rcb[1]->rxq) {
+					net_stats->rx_packets +=
+						bnad->rx_info[i].rx_ctrl[j].
+						ccb->rcb[1]->rxq->rx_packets;
+					net_stats->rx_bytes +=
+						bnad->rx_info[i].rx_ctrl[j].
+						ccb->rcb[1]->rxq->rx_bytes;
+				}
+			}
+		}
+	}
+	for (i = 0; i < bnad->num_tx; i++) {
+		for (j = 0; j < bnad->num_txq_per_tx; j++) {
+			if (bnad->tx_info[i].tcb[j]) {
+				net_stats->tx_packets +=
+				bnad->tx_info[i].tcb[j]->txq->tx_packets;
+				net_stats->tx_bytes +=
+					bnad->tx_info[i].tcb[j]->txq->tx_bytes;
+			}
+		}
+	}
+}
+
+/*
+ * Must be called with the bna_lock held.
+ */
+void
+bnad_netdev_hwstats_fill(struct bnad *bnad)
+{
+	struct bfi_ll_stats_mac *mac_stats;
+	struct net_device_stats *net_stats = &bnad->net_stats;
+	u64 bmap;
+	int i;
+
+	mac_stats = &bnad->stats.bna_stats->hw_stats->mac_stats;
+	net_stats->rx_errors =
+		mac_stats->rx_fcs_error + mac_stats->rx_alignment_error +
+		mac_stats->rx_frame_length_error + mac_stats->rx_code_error +
+		mac_stats->rx_undersize;
+	net_stats->tx_errors = mac_stats->tx_fcs_error +
+					mac_stats->tx_undersize;
+	net_stats->rx_dropped = mac_stats->rx_drop;
+	net_stats->tx_dropped = mac_stats->tx_drop;
+	net_stats->multicast = mac_stats->rx_multicast;
+	net_stats->collisions = mac_stats->tx_total_collision;
+
+	net_stats->rx_length_errors = mac_stats->rx_frame_length_error;
+
+	/* receive ring buffer overflow  ?? */
+
+	net_stats->rx_crc_errors = mac_stats->rx_fcs_error;
+	net_stats->rx_frame_errors = mac_stats->rx_alignment_error;
+	/* recv'r fifo overrun */
+	bmap = (u64)bnad->stats.bna_stats->rxf_bmap[0] |
+		((u64)bnad->stats.bna_stats->rxf_bmap[1] << 32);
+	for (i = 0; bmap && (i < BFI_LL_RXF_ID_MAX); i++) {
+		if (bmap & 1) {
+			net_stats->rx_fifo_errors =
+				bnad->stats.bna_stats->
+					hw_stats->rxf_stats[i].frame_drops;
+			break;
+		}
+		bmap >>= 1;
+	}
+}
+
+static void
+bnad_mbox_irq_sync(struct bnad *bnad)
+{
+	u32 irq;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	if (bnad->cfg_flags & BNAD_CF_MSIX)
+		irq = bnad->msix_table[bnad->msix_num - 1].vector;
+	else
+		irq = bnad->pcidev->irq;
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	synchronize_irq(irq);
+}
+
+/* Utility used by bnad_start_xmit, for doing TSO */
+static int
+bnad_tso_prepare(struct bnad *bnad, struct sk_buff *skb)
+{
+	int err;
+
+	/* SKB_GSO_TCPV4 and SKB_GSO_TCPV6 is defined since 2.6.18. */
+	BUG_ON(!(skb_shinfo(skb)->gso_type == SKB_GSO_TCPV4 ||
+		   skb_shinfo(skb)->gso_type == SKB_GSO_TCPV6));
+	if (skb_header_cloned(skb)) {
+		err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
+		if (err) {
+			BNAD_UPDATE_CTR(bnad, tso_err);
+			return err;
+		}
+	}
+
+	/*
+	 * For TSO, the TCP checksum field is seeded with pseudo-header sum
+	 * excluding the length field.
+	 */
+	if (skb->protocol == htons(ETH_P_IP)) {
+		struct iphdr *iph = ip_hdr(skb);
+
+		/* Do we really need these? */
+		iph->tot_len = 0;
+		iph->check = 0;
+
+		tcp_hdr(skb)->check =
+			~csum_tcpudp_magic(iph->saddr, iph->daddr, 0,
+					   IPPROTO_TCP, 0);
+		BNAD_UPDATE_CTR(bnad, tso4);
+	} else {
+		struct ipv6hdr *ipv6h = ipv6_hdr(skb);
+
+		BUG_ON(!(skb->protocol == htons(ETH_P_IPV6)));
+		ipv6h->payload_len = 0;
+		tcp_hdr(skb)->check =
+			~csum_ipv6_magic(&ipv6h->saddr, &ipv6h->daddr, 0,
+					 IPPROTO_TCP, 0);
+		BNAD_UPDATE_CTR(bnad, tso6);
+	}
+
+	return 0;
+}
+
+/*
+ * Initialize Q numbers depending on Rx Paths
+ * Called with bnad->bna_lock held, because of cfg_flags
+ * access.
+ */
+static void
+bnad_q_num_init(struct bnad *bnad)
+{
+	int rxps;
+
+	rxps = min((uint)num_online_cpus(),
+			(uint)(BNAD_MAX_RXS * BNAD_MAX_RXPS_PER_RX));
+
+	if (!(bnad->cfg_flags & BNAD_CF_MSIX))
+		rxps = 1;	/* INTx */
+
+	bnad->num_rx = 1;
+	bnad->num_tx = 1;
+	bnad->num_rxp_per_rx = rxps;
+	bnad->num_txq_per_tx = BNAD_TXQ_NUM;
+}
+
+/*
+ * Adjusts the Q numbers, given a number of msix vectors
+ * Give preference to RSS as opposed to Tx priority Queues,
+ * in such a case, just use 1 Tx Q
+ * Called with bnad->bna_lock held b'cos of cfg_flags access
+ */
+static void
+bnad_q_num_adjust(struct bnad *bnad, int msix_vectors)
+{
+	bnad->num_txq_per_tx = 1;
+	if ((msix_vectors >= (bnad->num_tx * bnad->num_txq_per_tx)  +
+	     bnad_rxqs_per_cq + BNAD_MAILBOX_MSIX_VECTORS) &&
+	    (bnad->cfg_flags & BNAD_CF_MSIX)) {
+		bnad->num_rxp_per_rx = msix_vectors -
+			(bnad->num_tx * bnad->num_txq_per_tx) -
+			BNAD_MAILBOX_MSIX_VECTORS;
+	} else
+		bnad->num_rxp_per_rx = 1;
+}
+
+static void
+bnad_set_netdev_perm_addr(struct bnad *bnad)
+{
+	struct net_device *netdev = bnad->netdev;
+
+	memcpy(netdev->perm_addr, &bnad->perm_addr, netdev->addr_len);
+	if (is_zero_ether_addr(netdev->dev_addr))
+		memcpy(netdev->dev_addr, &bnad->perm_addr, netdev->addr_len);
+}
+
+/* Enable / disable device */
+static void
+bnad_device_disable(struct bnad *bnad)
+{
+	unsigned long flags;
+
+	init_completion(&bnad->bnad_completions.ioc_comp);
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_device_disable(&bnad->bna.device, BNA_HARD_CLEANUP);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	wait_for_completion(&bnad->bnad_completions.ioc_comp);
+
+}
+
+static int
+bnad_device_enable(struct bnad *bnad)
+{
+	int err = 0;
+	unsigned long flags;
+
+	init_completion(&bnad->bnad_completions.ioc_comp);
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_device_enable(&bnad->bna.device);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	wait_for_completion(&bnad->bnad_completions.ioc_comp);
+
+	if (bnad->bnad_completions.ioc_comp_status)
+		err = bnad->bnad_completions.ioc_comp_status;
+
+	return err;
+}
+
+/* Free BNA resources */
+static void
+bnad_res_free(struct bnad *bnad)
+{
+	int i;
+	struct bna_res_info *res_info = &bnad->res_info[0];
+
+	for (i = 0; i < BNA_RES_T_MAX; i++) {
+		if (res_info[i].res_type == BNA_RES_T_MEM)
+			bnad_mem_free(bnad, &res_info[i].res_u.mem_info);
+		else
+			bnad_mbox_irq_free(bnad, &res_info[i].res_u.intr_info);
+	}
+}
+
+/* Allocates memory and interrupt resources for BNA */
+static int
+bnad_res_alloc(struct bnad *bnad)
+{
+	int i, err;
+	struct bna_res_info *res_info = &bnad->res_info[0];
+
+	for (i = 0; i < BNA_RES_T_MAX; i++) {
+		if (res_info[i].res_type == BNA_RES_T_MEM)
+			err = bnad_mem_alloc(bnad, &res_info[i].res_u.mem_info);
+		else
+			err = bnad_mbox_irq_alloc(bnad,
+						  &res_info[i].res_u.intr_info);
+		if (err)
+			goto err_return;
+	}
+	return 0;
+
+err_return:
+	bnad_res_free(bnad);
+	return err;
+}
+
+/* Interrupt enable / disable */
+static void
+bnad_enable_msix(struct bnad *bnad)
+{
+	int i, ret;
+	u32 tot_msix_num;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	if (!(bnad->cfg_flags & BNAD_CF_MSIX)) {
+		spin_unlock_irqrestore(&bnad->bna_lock, flags);
+		return;
+	}
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	if (bnad->msix_table)
+		return;
+
+	tot_msix_num = bnad->msix_num + bnad->msix_diag_num;
+
+	bnad->msix_table =
+		kcalloc(tot_msix_num, sizeof(struct msix_entry), GFP_KERNEL);
+
+	if (!bnad->msix_table)
+		goto intx_mode;
+
+	for (i = 0; i < tot_msix_num; i++)
+		bnad->msix_table[i].entry = i;
+
+	ret = pci_enable_msix(bnad->pcidev, bnad->msix_table, tot_msix_num);
+	if (ret > 0) {
+		/* Not enough MSI-X vectors. */
+
+		spin_lock_irqsave(&bnad->bna_lock, flags);
+		/* ret = #of vectors that we got */
+		bnad_q_num_adjust(bnad, ret);
+		spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+		bnad->msix_num = (bnad->num_tx * bnad->num_txq_per_tx)
+			+ (bnad->num_rx
+			* bnad->num_rxp_per_rx) +
+			 BNAD_MAILBOX_MSIX_VECTORS;
+		tot_msix_num = bnad->msix_num + bnad->msix_diag_num;
+
+		/* Try once more with adjusted numbers */
+		/* If this fails, fall back to INTx */
+		ret = pci_enable_msix(bnad->pcidev, bnad->msix_table,
+				      tot_msix_num);
+		if (ret)
+			goto intx_mode;
+
+	} else if (ret < 0)
+		goto intx_mode;
+	return;
+
+intx_mode:
+
+	kfree(bnad->msix_table);
+	bnad->msix_table = NULL;
+	bnad->msix_num = 0;
+	bnad->msix_diag_num = 0;
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bnad->cfg_flags &= ~BNAD_CF_MSIX;
+	bnad_q_num_init(bnad);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+}
+
+static void
+bnad_disable_msix(struct bnad *bnad)
+{
+	u32 cfg_flags;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	cfg_flags = bnad->cfg_flags;
+	if (bnad->cfg_flags & BNAD_CF_MSIX)
+		bnad->cfg_flags &= ~BNAD_CF_MSIX;
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	if (cfg_flags & BNAD_CF_MSIX) {
+		pci_disable_msix(bnad->pcidev);
+		kfree(bnad->msix_table);
+		bnad->msix_table = NULL;
+	}
+}
+
+/* Netdev entry points */
+static int
+bnad_open(struct net_device *netdev)
+{
+	int err;
+	struct bnad *bnad = netdev_priv(netdev);
+	struct bna_pause_config pause_config;
+	int mtu;
+	unsigned long flags;
+
+	mutex_lock(&bnad->conf_mutex);
+
+	/* Tx */
+	err = bnad_setup_tx(bnad, 0);
+	if (err)
+		goto err_return;
+
+	/* Rx */
+	err = bnad_setup_rx(bnad, 0);
+	if (err)
+		goto cleanup_tx;
+
+	/* Port */
+	pause_config.tx_pause = 0;
+	pause_config.rx_pause = 0;
+
+	mtu = ETH_HLEN + bnad->netdev->mtu + ETH_FCS_LEN;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_port_mtu_set(&bnad->bna.port, mtu, NULL);
+	bna_port_pause_config(&bnad->bna.port, &pause_config, NULL);
+	bna_port_enable(&bnad->bna.port);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	/* Enable broadcast */
+	bnad_enable_default_bcast(bnad);
+
+	/* Set the UCAST address */
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bnad_mac_addr_set_locked(bnad, netdev->dev_addr);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	/* Start the stats timer */
+	bnad_stats_timer_start(bnad);
+
+	mutex_unlock(&bnad->conf_mutex);
+
+	return 0;
+
+cleanup_tx:
+	bnad_cleanup_tx(bnad, 0);
+
+err_return:
+	mutex_unlock(&bnad->conf_mutex);
+	return err;
+}
+
+static int
+bnad_stop(struct net_device *netdev)
+{
+	struct bnad *bnad = netdev_priv(netdev);
+	unsigned long flags;
+
+	mutex_lock(&bnad->conf_mutex);
+
+	/* Stop the stats timer */
+	bnad_stats_timer_stop(bnad);
+
+	init_completion(&bnad->bnad_completions.port_comp);
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_port_disable(&bnad->bna.port, BNA_HARD_CLEANUP,
+			bnad_cb_port_disabled);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	wait_for_completion(&bnad->bnad_completions.port_comp);
+
+	bnad_cleanup_tx(bnad, 0);
+	bnad_cleanup_rx(bnad, 0);
+
+	/* Synchronize mailbox IRQ */
+	bnad_mbox_irq_sync(bnad);
+
+	mutex_unlock(&bnad->conf_mutex);
+
+	return 0;
+}
+
+/* TX */
+/*
+ * bnad_start_xmit : Netdev entry point for Transmit
+ *		     Called under lock held by net_device
+ */
+static netdev_tx_t
+bnad_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+{
+	struct bnad *bnad = netdev_priv(netdev);
+
+	u16 		txq_prod, vlan_tag = 0;
+	u32 		unmap_prod, wis, wis_used, wi_range;
+	u32 		vectors, vect_id, i, acked;
+	u32		tx_id;
+	int 			err;
+
+	struct bnad_tx_info *tx_info;
+	struct bna_tcb *tcb;
+	struct bnad_unmap_q *unmap_q;
+	dma_addr_t 		dma_addr;
+	struct bna_txq_entry *txqent;
+	bna_txq_wi_ctrl_flag_t 	flags;
+
+	if (unlikely
+	    (skb->len <= ETH_HLEN || skb->len > BFI_TX_MAX_DATA_PER_PKT)) {
+		dev_kfree_skb(skb);
+		return NETDEV_TX_OK;
+	}
+
+	/*
+	 * Takes care of the Tx that is scheduled between clearing the flag
+	 * and the netif_stop_queue() call.
+	 */
+	if (unlikely(!test_bit(BNAD_RF_TX_STARTED, &bnad->run_flags))) {
+		dev_kfree_skb(skb);
+		return NETDEV_TX_OK;
+	}
+
+	tx_id = 0;
+
+	tx_info = &bnad->tx_info[tx_id];
+	tcb = tx_info->tcb[tx_id];
+	unmap_q = tcb->unmap_q;
+
+	vectors = 1 + skb_shinfo(skb)->nr_frags;
+	if (vectors > BFI_TX_MAX_VECTORS_PER_PKT) {
+		dev_kfree_skb(skb);
+		return NETDEV_TX_OK;
+	}
+	wis = BNA_TXQ_WI_NEEDED(vectors);	/* 4 vectors per work item */
+	acked = 0;
+	if (unlikely
+	    (wis > BNA_QE_FREE_CNT(tcb, tcb->q_depth) ||
+	     vectors > BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth))) {
+		if ((u16) (*tcb->hw_consumer_index) !=
+		    tcb->consumer_index &&
+		    !test_and_set_bit(BNAD_TXQ_FREE_SENT, &tcb->flags)) {
+			acked = bnad_free_txbufs(bnad, tcb);
+			bna_ib_ack(tcb->i_dbell, acked);
+			smp_mb__before_clear_bit();
+			clear_bit(BNAD_TXQ_FREE_SENT, &tcb->flags);
+		} else {
+			netif_stop_queue(netdev);
+			BNAD_UPDATE_CTR(bnad, netif_queue_stop);
+		}
+
+		smp_mb();
+		/*
+		 * Check again to deal with race condition between
+		 * netif_stop_queue here, and netif_wake_queue in
+		 * interrupt handler which is not inside netif tx lock.
+		 */
+		if (likely
+		    (wis > BNA_QE_FREE_CNT(tcb, tcb->q_depth) ||
+		     vectors > BNA_QE_FREE_CNT(unmap_q, unmap_q->q_depth))) {
+			BNAD_UPDATE_CTR(bnad, netif_queue_stop);
+			return NETDEV_TX_BUSY;
+		} else {
+			netif_wake_queue(netdev);
+			BNAD_UPDATE_CTR(bnad, netif_queue_wakeup);
+		}
+	}
+
+	unmap_prod = unmap_q->producer_index;
+	wis_used = 1;
+	vect_id = 0;
+	flags = 0;
+
+	txq_prod = tcb->producer_index;
+	BNA_TXQ_QPGE_PTR_GET(txq_prod, tcb->sw_qpt, txqent, wi_range);
+	BUG_ON(!(wi_range <= tcb->q_depth));
+	txqent->hdr.wi.reserved = 0;
+	txqent->hdr.wi.num_vectors = vectors;
+	txqent->hdr.wi.opcode =
+		htons((skb_is_gso(skb) ? BNA_TXQ_WI_SEND_LSO :
+		       BNA_TXQ_WI_SEND));
+
+	if (bnad->vlan_grp && vlan_tx_tag_present(skb)) {
+		vlan_tag = (u16) vlan_tx_tag_get(skb);
+		flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN);
+	}
+	if (test_bit(BNAD_RF_CEE_RUNNING, &bnad->run_flags)) {
+		vlan_tag =
+			(tcb->priority & 0x7) << 13 | (vlan_tag & 0x1fff);
+		flags |= (BNA_TXQ_WI_CF_INS_PRIO | BNA_TXQ_WI_CF_INS_VLAN);
+	}
+
+	txqent->hdr.wi.vlan_tag = htons(vlan_tag);
+
+	if (skb_is_gso(skb)) {
+		err = bnad_tso_prepare(bnad, skb);
+		if (err) {
+			dev_kfree_skb(skb);
+			return NETDEV_TX_OK;
+		}
+		txqent->hdr.wi.lso_mss = htons(skb_is_gso(skb));
+		flags |= (BNA_TXQ_WI_CF_IP_CKSUM | BNA_TXQ_WI_CF_TCP_CKSUM);
+		txqent->hdr.wi.l4_hdr_size_n_offset =
+			htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
+			      (tcp_hdrlen(skb) >> 2,
+			       skb_transport_offset(skb)));
+	} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+		u8 proto = 0;
+
+		txqent->hdr.wi.lso_mss = 0;
+
+		if (skb->protocol == htons(ETH_P_IP))
+			proto = ip_hdr(skb)->protocol;
+		else if (skb->protocol == htons(ETH_P_IPV6)) {
+			/* nexthdr may not be TCP immediately. */
+			proto = ipv6_hdr(skb)->nexthdr;
+		}
+		if (proto == IPPROTO_TCP) {
+			flags |= BNA_TXQ_WI_CF_TCP_CKSUM;
+			txqent->hdr.wi.l4_hdr_size_n_offset =
+				htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
+				      (0, skb_transport_offset(skb)));
+
+			BNAD_UPDATE_CTR(bnad, tcpcsum_offload);
+
+			BUG_ON(!(skb_headlen(skb) >=
+				skb_transport_offset(skb) + tcp_hdrlen(skb)));
+
+		} else if (proto == IPPROTO_UDP) {
+			flags |= BNA_TXQ_WI_CF_UDP_CKSUM;
+			txqent->hdr.wi.l4_hdr_size_n_offset =
+				htons(BNA_TXQ_WI_L4_HDR_N_OFFSET
+				      (0, skb_transport_offset(skb)));
+
+			BNAD_UPDATE_CTR(bnad, udpcsum_offload);
+
+			BUG_ON(!(skb_headlen(skb) >=
+				   skb_transport_offset(skb) +
+				   sizeof(struct udphdr)));
+		} else {
+			err = skb_checksum_help(skb);
+			BNAD_UPDATE_CTR(bnad, csum_help);
+			if (err) {
+				dev_kfree_skb(skb);
+				BNAD_UPDATE_CTR(bnad, csum_help_err);
+				return NETDEV_TX_OK;
+			}
+		}
+	} else {
+		txqent->hdr.wi.lso_mss = 0;
+		txqent->hdr.wi.l4_hdr_size_n_offset = 0;
+	}
+
+	txqent->hdr.wi.flags = htons(flags);
+
+	txqent->hdr.wi.frame_length = htonl(skb->len);
+
+	unmap_q->unmap_array[unmap_prod].skb = skb;
+	BUG_ON(!(skb_headlen(skb) <= BFI_TX_MAX_DATA_PER_VECTOR));
+	txqent->vector[vect_id].length = htons(skb_headlen(skb));
+	dma_addr = pci_map_single(bnad->pcidev, skb->data, skb_headlen(skb),
+		PCI_DMA_TODEVICE);
+	pci_unmap_addr_set(&unmap_q->unmap_array[unmap_prod], dma_addr,
+			   dma_addr);
+
+	BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr);
+	BNA_QE_INDX_ADD(unmap_prod, 1, unmap_q->q_depth);
+
+	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+		struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
+		u32		size = frag->size;
+
+		if (++vect_id == BFI_TX_MAX_VECTORS_PER_WI) {
+			vect_id = 0;
+			if (--wi_range)
+				txqent++;
+			else {
+				BNA_QE_INDX_ADD(txq_prod, wis_used,
+						tcb->q_depth);
+				wis_used = 0;
+				BNA_TXQ_QPGE_PTR_GET(txq_prod, tcb->sw_qpt,
+						     txqent, wi_range);
+				BUG_ON(!(wi_range <= tcb->q_depth));
+			}
+			wis_used++;
+			txqent->hdr.wi_ext.opcode = htons(BNA_TXQ_WI_EXTENSION);
+		}
+
+		BUG_ON(!(size <= BFI_TX_MAX_DATA_PER_VECTOR));
+		txqent->vector[vect_id].length = htons(size);
+		dma_addr =
+			pci_map_page(bnad->pcidev, frag->page,
+				     frag->page_offset, size,
+				     PCI_DMA_TODEVICE);
+		pci_unmap_addr_set(&unmap_q->unmap_array[unmap_prod], dma_addr,
+				   dma_addr);
+		BNA_SET_DMA_ADDR(dma_addr, &txqent->vector[vect_id].host_addr);
+		BNA_QE_INDX_ADD(unmap_prod, 1, unmap_q->q_depth);
+	}
+
+	unmap_q->producer_index = unmap_prod;
+	BNA_QE_INDX_ADD(txq_prod, wis_used, tcb->q_depth);
+	tcb->producer_index = txq_prod;
+
+	smp_mb();
+	bna_txq_prod_indx_doorbell(tcb);
+
+	if ((u16) (*tcb->hw_consumer_index) != tcb->consumer_index)
+		tasklet_schedule(&bnad->tx_free_tasklet);
+
+	return NETDEV_TX_OK;
+}
+
+/*
+ * Used spin_lock to synchronize reading of stats structures, which
+ * is written by BNA under the same lock.
+ */
+static struct net_device_stats *
+bnad_get_netdev_stats(struct net_device *netdev)
+{
+	struct bnad *bnad = netdev_priv(netdev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+
+	memset(&bnad->net_stats, 0, sizeof(struct net_device_stats));
+
+	bnad_netdev_qstats_fill(bnad);
+	bnad_netdev_hwstats_fill(bnad);
+
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	return &bnad->net_stats;
+}
+
+static void
+bnad_set_rx_mode(struct net_device *netdev)
+{
+	struct bnad *bnad = netdev_priv(netdev);
+	u32	new_mask, valid_mask;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+
+	new_mask = valid_mask = 0;
+
+	if (netdev->flags & IFF_PROMISC) {
+		if (!(bnad->cfg_flags & BNAD_CF_PROMISC)) {
+			new_mask = BNAD_RXMODE_PROMISC_DEFAULT;
+			valid_mask = BNAD_RXMODE_PROMISC_DEFAULT;
+			bnad->cfg_flags |= BNAD_CF_PROMISC;
+		}
+	} else {
+		if (bnad->cfg_flags & BNAD_CF_PROMISC) {
+			new_mask = ~BNAD_RXMODE_PROMISC_DEFAULT;
+			valid_mask = BNAD_RXMODE_PROMISC_DEFAULT;
+			bnad->cfg_flags &= ~BNAD_CF_PROMISC;
+		}
+	}
+
+	if (netdev->flags & IFF_ALLMULTI) {
+		if (!(bnad->cfg_flags & BNAD_CF_ALLMULTI)) {
+			new_mask |= BNA_RXMODE_ALLMULTI;
+			valid_mask |= BNA_RXMODE_ALLMULTI;
+			bnad->cfg_flags |= BNAD_CF_ALLMULTI;
+		}
+	} else {
+		if (bnad->cfg_flags & BNAD_CF_ALLMULTI) {
+			new_mask &= ~BNA_RXMODE_ALLMULTI;
+			valid_mask |= BNA_RXMODE_ALLMULTI;
+			bnad->cfg_flags &= ~BNAD_CF_ALLMULTI;
+		}
+	}
+
+	bna_rx_mode_set(bnad->rx_info[0].rx, new_mask, valid_mask, NULL);
+
+	if (!netdev_mc_empty(netdev)) {
+		u8 *mcaddr_list;
+		int mc_count = netdev_mc_count(netdev);
+
+		/* Index 0 holds the broadcast address */
+		mcaddr_list =
+			kzalloc((mc_count + 1) * ETH_ALEN,
+				GFP_ATOMIC);
+		if (!mcaddr_list)
+			return;
+
+		memcpy(&mcaddr_list[0], &bnad_bcast_addr[0], ETH_ALEN);
+
+		/* Copy rest of the MC addresses */
+		bnad_netdev_mc_list_get(netdev, mcaddr_list);
+
+		bna_rx_mcast_listset(bnad->rx_info[0].rx, mc_count + 1,
+					mcaddr_list, NULL);
+
+		/* Should we enable BNAD_CF_ALLMULTI for err != 0 ? */
+		kfree(mcaddr_list);
+	}
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+}
+
+/*
+ * bna_lock is used to sync writes to netdev->addr
+ * conf_lock cannot be used since this call may be made
+ * in a non-blocking context.
+ */
+static int
+bnad_set_mac_address(struct net_device *netdev, void *mac_addr)
+{
+	int err;
+	struct bnad *bnad = netdev_priv(netdev);
+	struct sockaddr *sa = (struct sockaddr *)mac_addr;
+	unsigned long flags;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+
+	err = bnad_mac_addr_set_locked(bnad, sa->sa_data);
+
+	if (!err)
+		memcpy(netdev->dev_addr, sa->sa_data, netdev->addr_len);
+
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	return err;
+}
+
+static int
+bnad_change_mtu(struct net_device *netdev, int new_mtu)
+{
+	int mtu, err = 0;
+	unsigned long flags;
+
+	struct bnad *bnad = netdev_priv(netdev);
+
+	if (new_mtu + ETH_HLEN < ETH_ZLEN || new_mtu > BNAD_JUMBO_MTU)
+		return -EINVAL;
+
+	mutex_lock(&bnad->conf_mutex);
+
+	netdev->mtu = new_mtu;
+
+	mtu = ETH_HLEN + new_mtu + ETH_FCS_LEN;
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_port_mtu_set(&bnad->bna.port, mtu, NULL);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	mutex_unlock(&bnad->conf_mutex);
+	return err;
+}
+
+static void
+bnad_vlan_rx_register(struct net_device *netdev,
+				  struct vlan_group *vlan_grp)
+{
+	struct bnad *bnad = netdev_priv(netdev);
+
+	mutex_lock(&bnad->conf_mutex);
+	bnad->vlan_grp = vlan_grp;
+	mutex_unlock(&bnad->conf_mutex);
+}
+
+static void
+bnad_vlan_rx_add_vid(struct net_device *netdev,
+				 unsigned short vid)
+{
+	struct bnad *bnad = netdev_priv(netdev);
+	unsigned long flags;
+
+	if (!bnad->rx_info[0].rx)
+		return;
+
+	mutex_lock(&bnad->conf_mutex);
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_rx_vlan_add(bnad->rx_info[0].rx, vid);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	mutex_unlock(&bnad->conf_mutex);
+}
+
+static void
+bnad_vlan_rx_kill_vid(struct net_device *netdev,
+				  unsigned short vid)
+{
+	struct bnad *bnad = netdev_priv(netdev);
+	unsigned long flags;
+
+	if (!bnad->rx_info[0].rx)
+		return;
+
+	mutex_lock(&bnad->conf_mutex);
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	bna_rx_vlan_del(bnad->rx_info[0].rx, vid);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	mutex_unlock(&bnad->conf_mutex);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void
+bnad_netpoll(struct net_device *netdev)
+{
+	struct bnad *bnad = netdev_priv(netdev);
+	struct bnad_rx_info *rx_info;
+	struct bnad_rx_ctrl *rx_ctrl;
+	u32 curr_mask;
+	int i, j;
+
+	if (!(bnad->cfg_flags & BNAD_CF_MSIX)) {
+		bna_intx_disable(&bnad->bna, curr_mask);
+		bnad_isr(bnad->pcidev->irq, netdev);
+		bna_intx_enable(&bnad->bna, curr_mask);
+	} else {
+		for (i = 0; i < bnad->num_rx; i++) {
+			rx_info = &bnad->rx_info[i];
+			if (!rx_info->rx)
+				continue;
+			for (j = 0; j < bnad->num_rxp_per_rx; j++) {
+				rx_ctrl = &rx_info->rx_ctrl[j];
+				if (rx_ctrl->ccb) {
+					bnad_disable_rx_irq(bnad,
+							    rx_ctrl->ccb);
+					bnad_netif_rx_schedule_poll(bnad,
+							    rx_ctrl->ccb);
+				}
+			}
+		}
+	}
+}
+#endif
+
+static const struct net_device_ops bnad_netdev_ops = {
+	.ndo_open		= bnad_open,
+	.ndo_stop		= bnad_stop,
+	.ndo_start_xmit		= bnad_start_xmit,
+	.ndo_get_stats		= bnad_get_netdev_stats,
+	.ndo_set_rx_mode	= bnad_set_rx_mode,
+	.ndo_set_multicast_list = bnad_set_rx_mode,
+	.ndo_validate_addr      = eth_validate_addr,
+	.ndo_set_mac_address    = bnad_set_mac_address,
+	.ndo_change_mtu		= bnad_change_mtu,
+	.ndo_vlan_rx_register   = bnad_vlan_rx_register,
+	.ndo_vlan_rx_add_vid    = bnad_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid   = bnad_vlan_rx_kill_vid,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller    = bnad_netpoll
+#endif
+};
+
+static void
+bnad_netdev_init(struct bnad *bnad, bool using_dac)
+{
+	struct net_device *netdev = bnad->netdev;
+
+	netdev->features |= NETIF_F_IPV6_CSUM;
+	netdev->features |= NETIF_F_TSO;
+	netdev->features |= NETIF_F_TSO6;
+
+	netdev->features |= NETIF_F_GRO;
+	pr_warn("bna: GRO enabled, using kernel stack GRO\n");
+
+	netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
+
+	if (using_dac)
+		netdev->features |= NETIF_F_HIGHDMA;
+
+	netdev->features |=
+		NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX |
+		NETIF_F_HW_VLAN_FILTER;
+
+	netdev->vlan_features = netdev->features;
+	netdev->mem_start = bnad->mmio_start;
+	netdev->mem_end = bnad->mmio_start + bnad->mmio_len - 1;
+
+	netdev->netdev_ops = &bnad_netdev_ops;
+	bnad_set_ethtool_ops(netdev);
+}
+
+/*
+ * 1. Initialize the bnad structure
+ * 2. Setup netdev pointer in pci_dev
+ * 3. Initialze Tx free tasklet
+ * 4. Initialize no. of TxQ & CQs & MSIX vectors
+ */
+static int
+bnad_init(struct bnad *bnad,
+	  struct pci_dev *pdev, struct net_device *netdev)
+{
+	unsigned long flags;
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+	pci_set_drvdata(pdev, netdev);
+
+	bnad->netdev = netdev;
+	bnad->pcidev = pdev;
+	bnad->mmio_start = pci_resource_start(pdev, 0);
+	bnad->mmio_len = pci_resource_len(pdev, 0);
+	bnad->bar0 = ioremap_nocache(bnad->mmio_start, bnad->mmio_len);
+	if (!bnad->bar0) {
+		dev_err(&pdev->dev, "ioremap for bar0 failed\n");
+		pci_set_drvdata(pdev, NULL);
+		return -ENOMEM;
+	}
+	pr_info("bar0 mapped to %p, len %llu\n", bnad->bar0,
+	       (unsigned long long) bnad->mmio_len);
+
+	spin_lock_irqsave(&bnad->bna_lock, flags);
+	if (!bnad_msix_disable)
+		bnad->cfg_flags = BNAD_CF_MSIX;
+
+	bnad->cfg_flags |= BNAD_CF_DIM_ENABLED;
+
+	bnad_q_num_init(bnad);
+	spin_unlock_irqrestore(&bnad->bna_lock, flags);
+
+	bnad->msix_num = (bnad->num_tx * bnad->num_txq_per_tx) +
+		(bnad->num_rx * bnad->num_rxp_per_rx) +
+			 BNAD_MAILBOX_MSIX_VECTORS;
+	bnad->msix_diag_num = 2;	/* 1 for Tx, 1 for Rx */
+
+	bnad->txq_depth = BNAD_TXQ_DEPTH;
+	bnad->rxq_depth = BNAD_RXQ_DEPTH;
+	bnad->rx_csum = true;
+
+	bnad->tx_coalescing_timeo = BFI_TX_COALESCING_TIMEO;
+	bnad->rx_coalescing_timeo = BFI_RX_COALESCING_TIMEO;
+
+	tasklet_init(&bnad->tx_free_tasklet, bnad_tx_free_tasklet,
+		     (unsigned long)bnad);
+
+	return 0;
+}
+
+/*
+ * Must be called after bnad_pci_uninit()
+ * so that iounmap() and pci_set_drvdata(NULL)
+ * happens only after PCI uninitialization.
+ */
+static void
+bnad_uninit(struct bnad *bnad)
+{
+	if (bnad->bar0)
+		iounmap(bnad->bar0);
+	pci_set_drvdata(bnad->pcidev, NULL);
+}
+
+/*
+ * Initialize locks
+	a) Per device mutes used for serializing configuration
+	   changes from OS interface
+	b) spin lock used to protect bna state machine
+ */
+static void
+bnad_lock_init(struct bnad *bnad)
+{
+	spin_lock_init(&bnad->bna_lock);
+	mutex_init(&bnad->conf_mutex);
+}
+
+static void
+bnad_lock_uninit(struct bnad *bnad)
+{
+	mutex_destroy(&bnad->conf_mutex);
+}
+
+/* PCI Initialization */
+static int
+bnad_pci_init(struct bnad *bnad,
+	      struct pci_dev *pdev, bool *using_dac)
+{
+	int err;
+
+	err = pci_enable_device(pdev);
+	if (err)
+		return err;
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