qlcnic: 83xx data path routines

Add 83xx adapter data path routines
Update few 82xx adapter data path routines
Modify datapath resource allocation routines

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/qlcnic/qlcnic.h

@@ -431,6 +431,7 @@ struct qlcnic_adapter_stats {
 	u64  rx_dma_map_error;
 	u64  tx_dma_map_error;
 	u64  spurious_intr;
+	u64  mac_filter_limit_overrun;
 };
 
 /*
@@ -469,6 +470,7 @@ struct qlcnic_host_sds_ring {
 } ____cacheline_internodealigned_in_smp;
 
 struct qlcnic_host_tx_ring {
+	int irq;
 	void __iomem *crb_intr_mask;
 	char name[IFNAMSIZ+4];
 	u16 ctx_id;
@@ -477,6 +479,8 @@ struct qlcnic_host_tx_ring {
 	u32 num_desc;
 	void __iomem *crb_cmd_producer;
 	struct cmd_desc_type0 *desc_head;
+	struct qlcnic_adapter *adapter;
+	struct napi_struct napi;
 	struct qlcnic_cmd_buffer *cmd_buf_arr;
 	__le32 *hw_consumer;
 
@@ -1402,7 +1406,7 @@ void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter);
 int qlcnic_check_fw_status(struct qlcnic_adapter *adapter);
 void qlcnic_watchdog_task(struct work_struct *work);
 void qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter,
-		struct qlcnic_host_rds_ring *rds_ring);
+		struct qlcnic_host_rds_ring *rds_ring, u8 ring_id);
 int qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max);
 void qlcnic_set_multi(struct net_device *netdev);
 void qlcnic_free_mac_list(struct qlcnic_adapter *adapter);
@@ -1443,7 +1447,6 @@ int qlcnic_clear_esw_stats(struct qlcnic_adapter *adapter, u8, u8, u8);
 int qlcnic_get_mac_stats(struct qlcnic_adapter *, struct qlcnic_mac_statistics *);
 
 void qlcnic_free_mbx_args(struct qlcnic_cmd_args *cmd);
-void qlcnic_napi_del(struct qlcnic_adapter *);
 
 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *, int);
 void qlcnic_free_sds_rings(struct qlcnic_recv_context *);
@@ -1495,6 +1498,7 @@ struct qlcnic_nic_template {
 	void (*request_reset) (struct qlcnic_adapter *, u32);
 	void (*cancel_idc_work) (struct qlcnic_adapter *);
 	int (*napi_add)(struct qlcnic_adapter *, struct net_device *);
+	void (*napi_del)(struct qlcnic_adapter *);
 	void (*config_ipaddr)(struct qlcnic_adapter *, __be32, int);
 	irqreturn_t (*clear_legacy_intr)(struct qlcnic_adapter *);
 };
@@ -1670,6 +1674,11 @@ static inline int qlcnic_napi_add(struct qlcnic_adapter *adapter,
 	return adapter->nic_ops->napi_add(adapter, netdev);
 }
 
+static inline void qlcnic_napi_del(struct qlcnic_adapter *adapter)
+{
+	adapter->nic_ops->napi_del(adapter);
+}
+
 static inline void qlcnic_napi_enable(struct qlcnic_adapter *adapter)
 {
 	adapter->ahw->hw_ops->napi_enable(adapter);

drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c

@@ -242,6 +242,7 @@ static struct qlcnic_hardware_ops qlcnic_83xx_hw_ops = {
 	.get_func_no			= qlcnic_83xx_get_func_no,
 	.api_lock			= qlcnic_83xx_cam_lock,
 	.api_unlock			= qlcnic_83xx_cam_unlock,
+	.process_lb_rcv_ring_diag	= qlcnic_83xx_process_rcv_ring_diag,
 	.create_rx_ctx			= qlcnic_83xx_create_rx_ctx,
 	.create_tx_ctx			= qlcnic_83xx_create_tx_ctx,
 	.setup_link_event		= qlcnic_83xx_setup_link_event,
@@ -249,6 +250,8 @@ static struct qlcnic_hardware_ops qlcnic_83xx_hw_ops = {
 	.get_pci_info			= qlcnic_83xx_get_pci_info,
 	.set_nic_info			= qlcnic_83xx_set_nic_info,
 	.change_macvlan			= qlcnic_83xx_sre_macaddr_change,
+	.napi_enable			= qlcnic_83xx_napi_enable,
+	.napi_disable			= qlcnic_83xx_napi_disable,
 	.config_intr_coal		= qlcnic_83xx_config_intr_coal,
 	.config_rss			= qlcnic_83xx_config_rss,
 	.config_hw_lro			= qlcnic_83xx_config_hw_lro,
@@ -262,6 +265,8 @@ static struct qlcnic_hardware_ops qlcnic_83xx_hw_ops = {
 static struct qlcnic_nic_template qlcnic_83xx_ops = {
 	.config_bridged_mode	= qlcnic_config_bridged_mode,
 	.config_led		= qlcnic_config_led,
+	.napi_add		= qlcnic_83xx_napi_add,
+	.napi_del		= qlcnic_83xx_napi_del,
 	.config_ipaddr		= qlcnic_83xx_config_ipaddr,
 	.clear_legacy_intr	= qlcnic_83xx_clear_legacy_intr,
 };

drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h

@@ -193,8 +193,7 @@ void qlcnic_83xx_write_crb(struct qlcnic_adapter *, char *, loff_t, size_t);
 void qlcnic_83xx_read_crb(struct qlcnic_adapter *, char *, loff_t, size_t);
 int qlcnic_83xx_rd_reg_indirect(struct qlcnic_adapter *, ulong);
 int qlcnic_83xx_wrt_reg_indirect(struct qlcnic_adapter *, ulong, u32);
-void qlcnic_83xx_process_rcv_diag(struct qlcnic_adapter *,
+void qlcnic_83xx_process_rcv_diag(struct qlcnic_adapter *, int, u64 []);
-				  struct qlcnic_host_sds_ring *, int, u64 []);
 int qlcnic_83xx_nic_set_promisc(struct qlcnic_adapter *, u32);
 int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *, u8);
 int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *, u8);
@@ -206,6 +205,11 @@ int qlcnic_83xx_get_pci_info(struct qlcnic_adapter *, struct qlcnic_pci_info *);
 int qlcnic_83xx_set_nic_info(struct qlcnic_adapter *, struct qlcnic_info *);
 void qlcnic_83xx_register_nic_idc_func(struct qlcnic_adapter *, int);
 
+int qlcnic_83xx_napi_add(struct qlcnic_adapter *, struct net_device *);
+void qlcnic_83xx_napi_del(struct qlcnic_adapter *);
+void qlcnic_83xx_napi_enable(struct qlcnic_adapter *);
+void qlcnic_83xx_napi_disable(struct qlcnic_adapter *);
+
 void qlcnic_ind_wr(struct qlcnic_adapter *, u32, u32);
 int qlcnic_ind_rd(struct qlcnic_adapter *, u32);
 void qlcnic_83xx_get_stats(struct qlcnic_adapter *,

drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c

@@ -498,37 +498,43 @@ qlcnic_fw_cmd_set_port(struct qlcnic_adapter *adapter, u32 config)
 int qlcnic_alloc_hw_resources(struct qlcnic_adapter *adapter)
 {
 	void *addr;
-	int err;
+	int err, ring;
-	int ring;
 	struct qlcnic_recv_context *recv_ctx;
 	struct qlcnic_host_rds_ring *rds_ring;
 	struct qlcnic_host_sds_ring *sds_ring;
 	struct qlcnic_host_tx_ring *tx_ring;
+	__le32 *ptr;
 
 	struct pci_dev *pdev = adapter->pdev;
 
 	recv_ctx = adapter->recv_ctx;
-	tx_ring = adapter->tx_ring;
 
-	tx_ring->hw_consumer = (__le32 *) dma_alloc_coherent(&pdev->dev,
+	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
-		sizeof(u32), &tx_ring->hw_cons_phys_addr, GFP_KERNEL);
+		tx_ring = &adapter->tx_ring[ring];
-	if (tx_ring->hw_consumer == NULL) {
+		ptr = (__le32 *)dma_alloc_coherent(&pdev->dev, sizeof(u32),
-		dev_err(&pdev->dev, "failed to allocate tx consumer\n");
+						   &tx_ring->hw_cons_phys_addr,
-		return -ENOMEM;
+						   GFP_KERNEL);
+
+		if (ptr == NULL) {
+			dev_err(&pdev->dev, "failed to allocate tx consumer\n");
+			return -ENOMEM;
+		}
+		tx_ring->hw_consumer = ptr;
+		/* cmd desc ring */
+		addr = dma_alloc_coherent(&pdev->dev, TX_DESC_RINGSIZE(tx_ring),
+					  &tx_ring->phys_addr,
+					  GFP_KERNEL);
+
+		if (addr == NULL) {
+			dev_err(&pdev->dev,
+				"failed to allocate tx desc ring\n");
+			err = -ENOMEM;
+			goto err_out_free;
+		}
+
+		tx_ring->desc_head = addr;
 	}
 
-	/* cmd desc ring */
-	addr = dma_alloc_coherent(&pdev->dev, TX_DESC_RINGSIZE(tx_ring),
-			&tx_ring->phys_addr, GFP_KERNEL);
-
-	if (addr == NULL) {
-		dev_err(&pdev->dev, "failed to allocate tx desc ring\n");
-		err = -ENOMEM;
-		goto err_out_free;
-	}
-
-	tx_ring->desc_head = addr;
-
 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 		rds_ring = &recv_ctx->rds_rings[ring];
 		addr = dma_alloc_coherent(&adapter->pdev->dev,
@@ -624,20 +630,23 @@ void qlcnic_free_hw_resources(struct qlcnic_adapter *adapter)
 
 	recv_ctx = adapter->recv_ctx;
 
-	tx_ring = adapter->tx_ring;
+	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
-	if (tx_ring->hw_consumer != NULL) {
+		tx_ring = &adapter->tx_ring[ring];
-		dma_free_coherent(&adapter->pdev->dev,
+		if (tx_ring->hw_consumer != NULL) {
-				sizeof(u32),
+			dma_free_coherent(&adapter->pdev->dev, sizeof(u32),
-				tx_ring->hw_consumer,
+					  tx_ring->hw_consumer,
-				tx_ring->hw_cons_phys_addr);
+					  tx_ring->hw_cons_phys_addr);
-		tx_ring->hw_consumer = NULL;
-	}
 
-	if (tx_ring->desc_head != NULL) {
+			tx_ring->hw_consumer = NULL;
-		dma_free_coherent(&adapter->pdev->dev,
+		}
-				TX_DESC_RINGSIZE(tx_ring),
+
-				tx_ring->desc_head, tx_ring->phys_addr);
+		if (tx_ring->desc_head != NULL) {
-		tx_ring->desc_head = NULL;
+			dma_free_coherent(&adapter->pdev->dev,
+					  TX_DESC_RINGSIZE(tx_ring),
+					  tx_ring->desc_head,
+					  tx_ring->phys_addr);
+			tx_ring->desc_head = NULL;
+		}
 	}
 
 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {

drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c

@@ -163,13 +163,12 @@ void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
 {
 	struct qlcnic_recv_context *recv_ctx;
 	struct qlcnic_host_rds_ring *rds_ring;
-	struct qlcnic_host_tx_ring *tx_ring;
 	int ring;
 
 	recv_ctx = adapter->recv_ctx;
 
 	if (recv_ctx->rds_rings == NULL)
-		goto skip_rds;
+		return;
 
 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 		rds_ring = &recv_ctx->rds_rings[ring];
@@ -177,16 +176,6 @@ void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
 		rds_ring->rx_buf_arr = NULL;
 	}
 	kfree(recv_ctx->rds_rings);
-
-skip_rds:
-	if (adapter->tx_ring == NULL)
-		return;
-
-	tx_ring = adapter->tx_ring;
-	vfree(tx_ring->cmd_buf_arr);
-	tx_ring->cmd_buf_arr = NULL;
-	kfree(adapter->tx_ring);
-	adapter->tx_ring = NULL;
 }
 
 int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
@@ -194,31 +183,11 @@ int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
 	struct qlcnic_recv_context *recv_ctx;
 	struct qlcnic_host_rds_ring *rds_ring;
 	struct qlcnic_host_sds_ring *sds_ring;
-	struct qlcnic_host_tx_ring *tx_ring;
 	struct qlcnic_rx_buffer *rx_buf;
 	int ring, i, size;
 
-	struct qlcnic_cmd_buffer *cmd_buf_arr;
 	struct net_device *netdev = adapter->netdev;
 
-	size = sizeof(struct qlcnic_host_tx_ring);
-	tx_ring = kzalloc(size, GFP_KERNEL);
-	if (tx_ring == NULL) {
-		dev_err(&netdev->dev, "failed to allocate tx ring struct\n");
-		return -ENOMEM;
-	}
-	adapter->tx_ring = tx_ring;
-
-	tx_ring->num_desc = adapter->num_txd;
-	tx_ring->txq = netdev_get_tx_queue(netdev, 0);
-
-	cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
-	if (cmd_buf_arr == NULL) {
-		dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n");
-		goto err_out;
-	}
-	tx_ring->cmd_buf_arr = cmd_buf_arr;
-
 	recv_ctx = adapter->recv_ctx;
 
 	size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring);
@@ -253,10 +222,11 @@ int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
 		}
 		rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
 		if (rds_ring->rx_buf_arr == NULL) {
-			dev_err(&netdev->dev, "Failed to allocate "
+			dev_err(&netdev->dev,
-				"rx buffer ring %d\n", ring);
+				"Failed to allocate rx buffer ring %d\n", ring);
 			goto err_out;
 		}
+
 		INIT_LIST_HEAD(&rds_ring->free_list);
 		/*
 		 * Now go through all of them, set reference handles

drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c

@@ -5,9 +5,6 @@
 
 #include "qlcnic.h"
 
-#define QLCNIC_MAC_HASH(MAC)\
-	((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
-
 #define TX_ETHER_PKT	0x01
 #define TX_TCP_PKT	0x02
 #define TX_UDP_PKT	0x03
@@ -91,10 +88,61 @@
 #define QLCNIC_RESPONSE_DESC	0x05
 #define QLCNIC_LRO_DESC  	0x12
 
+#define QLCNIC_TX_POLL_BUDGET		128
+#define QLCNIC_TCP_HDR_SIZE		20
+#define QLCNIC_TCP_TS_OPTION_SIZE	12
+#define QLCNIC_FETCH_RING_ID(handle)	((handle) >> 63)
+#define QLCNIC_DESC_OWNER_FW		cpu_to_le64(STATUS_OWNER_PHANTOM)
+
+#define QLCNIC_TCP_TS_HDR_SIZE (QLCNIC_TCP_HDR_SIZE + QLCNIC_TCP_TS_OPTION_SIZE)
+
 /* for status field in status_desc */
 #define STATUS_CKSUM_LOOP	0
 #define STATUS_CKSUM_OK		2
 
+#define qlcnic_83xx_pktln(sts)		((sts >> 32) & 0x3FFF)
+#define qlcnic_83xx_hndl(sts)		((sts >> 48) & 0x7FFF)
+#define qlcnic_83xx_csum_status(sts)	((sts >> 39) & 7)
+#define qlcnic_83xx_opcode(sts)	((sts >> 42) & 0xF)
+#define qlcnic_83xx_vlan_tag(sts)	(((sts) >> 48) & 0xFFFF)
+#define qlcnic_83xx_lro_pktln(sts)	(((sts) >> 32) & 0x3FFF)
+#define qlcnic_83xx_l2_hdr_off(sts)	(((sts) >> 16) & 0xFF)
+#define qlcnic_83xx_l4_hdr_off(sts)	(((sts) >> 24) & 0xFF)
+#define qlcnic_83xx_pkt_cnt(sts)	(((sts) >> 16) & 0x7)
+#define qlcnic_83xx_is_tstamp(sts)	(((sts) >> 40) & 1)
+#define qlcnic_83xx_is_psh_bit(sts)	(((sts) >> 41) & 1)
+#define qlcnic_83xx_is_ip_align(sts)	(((sts) >> 46) & 1)
+#define qlcnic_83xx_has_vlan_tag(sts)	(((sts) >> 47) & 1)
+
+struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *,
+				     struct qlcnic_host_rds_ring *, u16, u16);
+
+inline void qlcnic_83xx_enable_tx_intr(struct qlcnic_adapter *adapter,
+				       struct qlcnic_host_tx_ring *tx_ring)
+{
+	writel(0, tx_ring->crb_intr_mask);
+}
+
+inline void qlcnic_83xx_disable_tx_intr(struct qlcnic_adapter *adapter,
+					struct qlcnic_host_tx_ring *tx_ring)
+{
+	writel(1, tx_ring->crb_intr_mask);
+}
+
+static inline u8 qlcnic_mac_hash(u64 mac)
+{
+	return (u8)((mac & 0xff) ^ ((mac >> 40) & 0xff));
+}
+
+static inline u32 qlcnic_get_ref_handle(struct qlcnic_adapter *adapter,
+					u16 handle, u8 ring_id)
+{
+	if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X)
+		return handle | (ring_id << 15);
+	else
+		return handle;
+}
+
 void qlcnic_82xx_change_filter(struct qlcnic_adapter *adapter, u64 *uaddr,
 			       __le16 vlan_id)
 {
@@ -128,29 +176,33 @@ void qlcnic_82xx_change_filter(struct qlcnic_adapter *adapter, u64 *uaddr,
 }
 
 static void qlcnic_send_filter(struct qlcnic_adapter *adapter,
-			       struct qlcnic_host_tx_ring *tx_ring,
 			       struct cmd_desc_type0 *first_desc,
 			       struct sk_buff *skb)
 {
 	struct qlcnic_filter *fil, *tmp_fil;
 	struct hlist_node *tmp_hnode, *n;
 	struct hlist_head *head;
+	struct net_device *netdev = adapter->netdev;
 	struct ethhdr *phdr = (struct ethhdr *)(skb->data);
 	u64 src_addr = 0;
 	__le16 vlan_id = 0;
 	u8 hindex;
 
-	if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
+	if (ether_addr_equal(phdr->h_source, adapter->mac_addr))
 		return;
 
-	if (adapter->fhash.fnum >= adapter->fhash.fmax)
+	if (adapter->fhash.fnum >= adapter->fhash.fmax) {
+		adapter->stats.mac_filter_limit_overrun++;
+		netdev_info(netdev, "Can not add more than %d mac addresses\n",
+			    adapter->fhash.fmax);
 		return;
+	}
 
 	/* Only NPAR capable devices support vlan based learning */
 	if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 		vlan_id = first_desc->vlan_TCI;
 	memcpy(&src_addr, phdr->h_source, ETH_ALEN);
-	hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
+	hindex = qlcnic_mac_hash(src_addr) & (adapter->fhash.fbucket_size - 1);
 	head = &(adapter->fhash.fhead[hindex]);
 
 	hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
@@ -470,7 +522,7 @@ netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 		goto unwind_buff;
 
 	if (adapter->mac_learn)
-		qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
+		qlcnic_send_filter(adapter, first_desc, skb);
 
 	adapter->stats.txbytes += skb->len;
 	adapter->stats.xmitcalled++;
@@ -523,8 +575,8 @@ static int qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
 	}
 
 	skb_reserve(skb, NET_IP_ALIGN);
-	dma = pci_map_single(pdev, skb->data, rds_ring->dma_size,
+	dma = pci_map_single(pdev, skb->data,
-			     PCI_DMA_FROMDEVICE);
+			     rds_ring->dma_size, PCI_DMA_FROMDEVICE);
 
 	if (pci_dma_mapping_error(pdev, dma)) {
 		adapter->stats.rx_dma_map_error++;
@@ -539,12 +591,13 @@ static int qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
 }
 
 static void qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
-					 struct qlcnic_host_rds_ring *rds_ring)
+					struct qlcnic_host_rds_ring *rds_ring,
+					u8 ring_id)
 {
 	struct rcv_desc *pdesc;
 	struct qlcnic_rx_buffer *buffer;
 	int  count = 0;
-	uint32_t producer;
+	uint32_t producer, handle;
 	struct list_head *head;
 
 	if (!spin_trylock(&rds_ring->lock))
@@ -552,7 +605,6 @@ static void qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
 
 	producer = rds_ring->producer;
 	head = &rds_ring->free_list;
-
 	while (!list_empty(head)) {
 		buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
 
@@ -560,28 +612,29 @@ static void qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
 			if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
 				break;
 		}
-
 		count++;
 		list_del(&buffer->list);
 
 		/* make a rcv descriptor  */
 		pdesc = &rds_ring->desc_head[producer];
-		pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
+		handle = qlcnic_get_ref_handle(adapter,
+					       buffer->ref_handle, ring_id);
+		pdesc->reference_handle = cpu_to_le16(handle);
 		pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
 		pdesc->addr_buffer = cpu_to_le64(buffer->dma);
 		producer = get_next_index(producer, rds_ring->num_desc);
 	}
-
 	if (count) {
 		rds_ring->producer = producer;
 		writel((producer - 1) & (rds_ring->num_desc - 1),
 		       rds_ring->crb_rcv_producer);
 	}
-
 	spin_unlock(&rds_ring->lock);
 }
 
-static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
+static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter,
+				   struct qlcnic_host_tx_ring *tx_ring,
+				   int budget)
 {
 	u32 sw_consumer, hw_consumer;
 	int i, done, count = 0;
@@ -589,7 +642,6 @@ static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
 	struct pci_dev *pdev = adapter->pdev;
 	struct net_device *netdev = adapter->netdev;
 	struct qlcnic_skb_frag *frag;
-	struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
 
 	if (!spin_trylock(&adapter->tx_clean_lock))
 		return 1;
@@ -610,22 +662,19 @@ static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
 					       PCI_DMA_TODEVICE);
 				frag->dma = 0ULL;
 			}
-
 			adapter->stats.xmitfinished++;
 			dev_kfree_skb_any(buffer->skb);
 			buffer->skb = NULL;
 		}
 
 		sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
-		if (++count >= MAX_STATUS_HANDLE)
+		if (++count >= budget)
 			break;
 	}
 
 	if (count && netif_running(netdev)) {
 		tx_ring->sw_consumer = sw_consumer;
-
 		smp_mb();
-
 		if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
 			if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
 				netif_wake_queue(netdev);
@@ -649,7 +698,6 @@ static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
 	 */
 	hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
 	done = (sw_consumer == hw_consumer);
-
 	spin_unlock(&adapter->tx_clean_lock);
 
 	return done;
@@ -657,16 +705,15 @@ static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
 
 static int qlcnic_poll(struct napi_struct *napi, int budget)
 {
+	int tx_complete, work_done;
 	struct qlcnic_host_sds_ring *sds_ring;
 	struct qlcnic_adapter *adapter;
-	int tx_complete, work_done;
 
 	sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi);
 	adapter = sds_ring->adapter;
-
+	tx_complete = qlcnic_process_cmd_ring(adapter, adapter->tx_ring,
-	tx_complete = qlcnic_process_cmd_ring(adapter);
+					      budget);
 	work_done = qlcnic_process_rcv_ring(sds_ring, budget);
-
 	if ((work_done < budget) && tx_complete) {
 		napi_complete(&sds_ring->napi);
 		if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
@@ -799,26 +846,23 @@ static void qlcnic_handle_fw_message(int desc_cnt, int index,
 	}
 }
 
-static struct sk_buff *
+struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
-qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
+				     struct qlcnic_host_rds_ring *ring,
-		     struct qlcnic_host_rds_ring *rds_ring, u16 index,
+				     u16 index, u16 cksum)
-		     u16 cksum)
 {
 	struct qlcnic_rx_buffer *buffer;
 	struct sk_buff *skb;
 
-	buffer = &rds_ring->rx_buf_arr[index];
+	buffer = &ring->rx_buf_arr[index];
-
 	if (unlikely(buffer->skb == NULL)) {
 		WARN_ON(1);
 		return NULL;
 	}
 
-	pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
+	pci_unmap_single(adapter->pdev, buffer->dma, ring->dma_size,
 			 PCI_DMA_FROMDEVICE);
 
 	skb = buffer->skb;
-
 	if (likely((adapter->netdev->features & NETIF_F_RXCSUM) &&
 		   (cksum == STATUS_CKSUM_OK || cksum == STATUS_CKSUM_LOOP))) {
 		adapter->stats.csummed++;
@@ -827,6 +871,7 @@ qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
 		skb_checksum_none_assert(skb);
 	}
 
+
 	buffer->skb = NULL;
 
 	return skb;
@@ -1001,9 +1046,9 @@ int qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
 	struct list_head *cur;
 	struct status_desc *desc;
 	struct qlcnic_rx_buffer *rxbuf;
+	int opcode, desc_cnt, count = 0;
 	u64 sts_data0, sts_data1;
-	__le64 owner_phantom = cpu_to_le64(STATUS_OWNER_PHANTOM);
+	u8 ring;
-	int opcode, ring, desc_cnt, count = 0;
 	u32 consumer = sds_ring->consumer;
 
 	while (count < max) {
@@ -1015,7 +1060,6 @@ int qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
 
 		desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
 		opcode = qlcnic_get_sts_opcode(sts_data0);
-
 		switch (opcode) {
 		case QLCNIC_RXPKT_DESC:
 		case QLCNIC_OLD_RXPKT_DESC:
@@ -1035,18 +1079,16 @@ int qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
 		default:
 			goto skip;
 		}
-
 		WARN_ON(desc_cnt > 1);
 
 		if (likely(rxbuf))
 			list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
 		else
 			adapter->stats.null_rxbuf++;
-
 skip:
 		for (; desc_cnt > 0; desc_cnt--) {
 			desc = &sds_ring->desc_head[consumer];
-			desc->status_desc_data[0] = owner_phantom;
+			desc->status_desc_data[0] = QLCNIC_DESC_OWNER_FW;
 			consumer = get_next_index(consumer, sds_ring->num_desc);
 		}
 		count++;
@@ -1054,7 +1096,6 @@ skip:
 
 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 		rds_ring = &adapter->recv_ctx->rds_rings[ring];
-
 		if (!list_empty(&sds_ring->free_list[ring])) {
 			list_for_each(cur, &sds_ring->free_list[ring]) {
 				rxbuf = list_entry(cur, struct qlcnic_rx_buffer,
@@ -1067,7 +1108,7 @@ skip:
 			spin_unlock(&rds_ring->lock);
 		}
 
-		qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
+		qlcnic_post_rx_buffers_nodb(adapter, rds_ring, ring);
 	}
 
 	if (count) {
@@ -1079,12 +1120,12 @@ skip:
 }
 
 void qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter,
-			    struct qlcnic_host_rds_ring *rds_ring)
+			    struct qlcnic_host_rds_ring *rds_ring, u8 ring_id)
 {
 	struct rcv_desc *pdesc;
 	struct qlcnic_rx_buffer *buffer;
 	int count = 0;
-	u32 producer;
+	u32 producer, handle;
 	struct list_head *head;
 
 	producer = rds_ring->producer;
@@ -1105,7 +1146,9 @@ void qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter,
 		/* make a rcv descriptor  */
 		pdesc = &rds_ring->desc_head[producer];
 		pdesc->addr_buffer = cpu_to_le64(buffer->dma);
-		pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
+		handle = qlcnic_get_ref_handle(adapter, buffer->ref_handle,
+					       ring_id);
+		pdesc->reference_handle = cpu_to_le16(handle);
 		pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
 		producer = get_next_index(producer, rds_ring->num_desc);
 	}
@@ -1226,8 +1269,7 @@ int qlcnic_82xx_napi_add(struct qlcnic_adapter *adapter,
 
 	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
-
+		if (ring == adapter->max_sds_rings - 1)
-		if (ring == max_sds_rings - 1)
 			netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
 				       QLCNIC_NETDEV_WEIGHT / max_sds_rings);
 		else
@@ -1235,10 +1277,15 @@ int qlcnic_82xx_napi_add(struct qlcnic_adapter *adapter,
 				       QLCNIC_NETDEV_WEIGHT*2);
 	}
 
+	if (qlcnic_alloc_tx_rings(adapter, netdev)) {
+		qlcnic_free_sds_rings(recv_ctx);
+		return -ENOMEM;
+	}
+
 	return 0;
 }
 
-void qlcnic_napi_del(struct qlcnic_adapter *adapter)
+void qlcnic_82xx_napi_del(struct qlcnic_adapter *adapter)
 {
 	int ring;
 	struct qlcnic_host_sds_ring *sds_ring;
@@ -1250,6 +1297,7 @@ void qlcnic_napi_del(struct qlcnic_adapter *adapter)
 	}
 
 	qlcnic_free_sds_rings(adapter->recv_ctx);
+	qlcnic_free_tx_rings(adapter);
 }
 
 void qlcnic_82xx_napi_enable(struct qlcnic_adapter *adapter)
@@ -1284,3 +1332,447 @@ void qlcnic_82xx_napi_disable(struct qlcnic_adapter *adapter)
 		napi_disable(&sds_ring->napi);
 	}
 }
+
+static struct qlcnic_rx_buffer *
+qlcnic_83xx_process_rcv(struct qlcnic_adapter *adapter,
+			struct qlcnic_host_sds_ring *sds_ring,
+			u8 ring, u64 sts_data[])
+{
+	struct net_device *netdev = adapter->netdev;
+	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+	struct qlcnic_rx_buffer *buffer;
+	struct sk_buff *skb;
+	struct qlcnic_host_rds_ring *rds_ring;
+	int index, length, cksum;
+	u16 vid = 0xffff;
+
+	if (unlikely(ring >= adapter->max_rds_rings))
+		return NULL;
+
+	rds_ring = &recv_ctx->rds_rings[ring];
+
+	index = qlcnic_83xx_hndl(sts_data[0]);
+	if (unlikely(index >= rds_ring->num_desc))
+		return NULL;
+
+	buffer = &rds_ring->rx_buf_arr[index];
+	length = qlcnic_83xx_pktln(sts_data[0]);
+	cksum  = qlcnic_83xx_csum_status(sts_data[1]);
+	skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
+	if (!skb)
+		return buffer;
+
+	if (length > rds_ring->skb_size)
+		skb_put(skb, rds_ring->skb_size);
+	else
+		skb_put(skb, length);
+
+	if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
+		adapter->stats.rxdropped++;
+		dev_kfree_skb(skb);
+		return buffer;
+	}
+
+	skb->protocol = eth_type_trans(skb, netdev);
+
+	if (vid != 0xffff)
+		__vlan_hwaccel_put_tag(skb, vid);
+
+	napi_gro_receive(&sds_ring->napi, skb);
+
+	adapter->stats.rx_pkts++;
+	adapter->stats.rxbytes += length;
+
+	return buffer;
+}
+
+static struct qlcnic_rx_buffer *
+qlcnic_83xx_process_lro(struct qlcnic_adapter *adapter,
+			u8 ring, u64 sts_data[])
+{
+	struct net_device *netdev = adapter->netdev;
+	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+	struct qlcnic_rx_buffer *buffer;
+	struct sk_buff *skb;
+	struct qlcnic_host_rds_ring *rds_ring;
+	struct iphdr *iph;
+	struct ipv6hdr *ipv6h;
+	struct tcphdr *th;
+	bool push;
+	int l2_hdr_offset, l4_hdr_offset;
+	int index;
+	u16 lro_length, length, data_offset;
+	u16 vid = 0xffff;
+
+	if (unlikely(ring > adapter->max_rds_rings))
+		return NULL;
+
+	rds_ring = &recv_ctx->rds_rings[ring];
+
+	index = qlcnic_83xx_hndl(sts_data[0]);
+	if (unlikely(index > rds_ring->num_desc))
+		return NULL;
+
+	buffer = &rds_ring->rx_buf_arr[index];
+
+	lro_length = qlcnic_83xx_lro_pktln(sts_data[0]);
+	l2_hdr_offset = qlcnic_83xx_l2_hdr_off(sts_data[1]);
+	l4_hdr_offset = qlcnic_83xx_l4_hdr_off(sts_data[1]);
+	push = qlcnic_83xx_is_psh_bit(sts_data[1]);
+
+	skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
+	if (!skb)
+		return buffer;
+	if (qlcnic_83xx_is_tstamp(sts_data[1]))
+		data_offset = l4_hdr_offset + QLCNIC_TCP_TS_HDR_SIZE;
+	else
+		data_offset = l4_hdr_offset + QLCNIC_TCP_HDR_SIZE;
+
+	skb_put(skb, lro_length + data_offset);
+	skb_pull(skb, l2_hdr_offset);
+
+	if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
+		adapter->stats.rxdropped++;
+		dev_kfree_skb(skb);
+		return buffer;
+	}
+
+	skb->protocol = eth_type_trans(skb, netdev);
+	if (ntohs(skb->protocol) == ETH_P_IPV6) {
+		ipv6h = (struct ipv6hdr *)skb->data;
+		th = (struct tcphdr *)(skb->data + sizeof(struct ipv6hdr));
+
+		length = (th->doff << 2) + lro_length;
+		ipv6h->payload_len = htons(length);
+	} else {
+		iph = (struct iphdr *)skb->data;
+		th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
+		length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
+		iph->tot_len = htons(length);
+		iph->check = 0;
+		iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
+	}
+
+	th->psh = push;
+	length = skb->len;
+
+	if (vid != 0xffff)
+		__vlan_hwaccel_put_tag(skb, vid);
+
+	netif_receive_skb(skb);
+
+	adapter->stats.lro_pkts++;
+	adapter->stats.lrobytes += length;
+	return buffer;
+}
+
+static int qlcnic_83xx_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring,
+					int max)
+{
+	struct qlcnic_host_rds_ring *rds_ring;
+	struct qlcnic_adapter *adapter = sds_ring->adapter;
+	struct list_head *cur;
+	struct status_desc *desc;
+	struct qlcnic_rx_buffer *rxbuf = NULL;
+	u8 ring;
+	u64 sts_data[2];
+	int count = 0, opcode;
+	u32 consumer = sds_ring->consumer;
+
+	while (count < max) {
+		desc = &sds_ring->desc_head[consumer];
+		sts_data[1] = le64_to_cpu(desc->status_desc_data[1]);
+		opcode = qlcnic_83xx_opcode(sts_data[1]);
+		if (!opcode)
+			break;
+		sts_data[0] = le64_to_cpu(desc->status_desc_data[0]);
+		ring = QLCNIC_FETCH_RING_ID(sts_data[0]);
+
+		switch (opcode) {
+		case QLC_83XX_REG_DESC:
+			rxbuf = qlcnic_83xx_process_rcv(adapter, sds_ring,
+							ring, sts_data);
+			break;
+		case QLC_83XX_LRO_DESC:
+			rxbuf = qlcnic_83xx_process_lro(adapter, ring,
+							sts_data);
+			break;
+		default:
+			dev_info(&adapter->pdev->dev,
+				 "Unkonwn opcode: 0x%x\n", opcode);
+			goto skip;
+		}
+
+		if (likely(rxbuf))
+			list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
+		else
+			adapter->stats.null_rxbuf++;
+skip:
+		desc = &sds_ring->desc_head[consumer];
+		/* Reset the descriptor */
+		desc->status_desc_data[1] = 0;
+		consumer = get_next_index(consumer, sds_ring->num_desc);
+		count++;
+	}
+	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+		rds_ring = &adapter->recv_ctx->rds_rings[ring];
+		if (!list_empty(&sds_ring->free_list[ring])) {
+			list_for_each(cur, &sds_ring->free_list[ring]) {
+				rxbuf = list_entry(cur, struct qlcnic_rx_buffer,
+						   list);
+				qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
+			}
+			spin_lock(&rds_ring->lock);
+			list_splice_tail_init(&sds_ring->free_list[ring],
+					      &rds_ring->free_list);
+			spin_unlock(&rds_ring->lock);
+		}
+		qlcnic_post_rx_buffers_nodb(adapter, rds_ring, ring);
+	}
+	if (count) {
+		sds_ring->consumer = consumer;
+		writel(consumer, sds_ring->crb_sts_consumer);
+	}
+	return count;
+}
+
+static int qlcnic_83xx_poll(struct napi_struct *napi, int budget)
+{
+	int tx_complete;
+	int work_done;
+	struct qlcnic_host_sds_ring *sds_ring;
+	struct qlcnic_adapter *adapter;
+	struct qlcnic_host_tx_ring *tx_ring;
+
+	sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi);
+	adapter = sds_ring->adapter;
+	/* tx ring count = 1 */
+	tx_ring = adapter->tx_ring;
+
+	if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
+		qlcnic_83xx_process_aen(adapter);
+
+	tx_complete = qlcnic_process_cmd_ring(adapter, tx_ring, budget);
+	work_done = qlcnic_83xx_process_rcv_ring(sds_ring, budget);
+	if ((work_done < budget) && tx_complete) {
+		napi_complete(&sds_ring->napi);
+		if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
+			qlcnic_83xx_enable_intr(adapter, sds_ring);
+	}
+
+	return work_done;
+}
+
+static int qlcnic_83xx_msix_tx_poll(struct napi_struct *napi, int budget)
+{
+	int work_done;
+	struct qlcnic_host_tx_ring *tx_ring;
+	struct qlcnic_adapter *adapter;
+
+	budget = QLCNIC_TX_POLL_BUDGET;
+	tx_ring = container_of(napi, struct qlcnic_host_tx_ring, napi);
+	adapter = tx_ring->adapter;
+	work_done = qlcnic_process_cmd_ring(adapter, tx_ring, budget);
+	if (work_done) {
+		napi_complete(&tx_ring->napi);
+		if (test_bit(__QLCNIC_DEV_UP , &adapter->state))
+			qlcnic_83xx_enable_tx_intr(adapter, tx_ring);
+	}
+
+	return work_done;
+}
+
+static int qlcnic_83xx_rx_poll(struct napi_struct *napi, int budget)
+{
+	int work_done;
+	struct qlcnic_host_sds_ring *sds_ring;
+	struct qlcnic_adapter *adapter;
+
+	sds_ring = container_of(napi, struct qlcnic_host_sds_ring, napi);
+	adapter = sds_ring->adapter;
+	work_done = qlcnic_83xx_process_rcv_ring(sds_ring, budget);
+	if (work_done < budget) {
+		napi_complete(&sds_ring->napi);
+		if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
+			qlcnic_83xx_enable_intr(adapter, sds_ring);
+	}
+
+	return work_done;
+}
+
+void qlcnic_83xx_napi_enable(struct qlcnic_adapter *adapter)
+{
+	int ring;
+	struct qlcnic_host_sds_ring *sds_ring;
+	struct qlcnic_host_tx_ring *tx_ring;
+	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+
+	if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
+		return;
+
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+		napi_enable(&sds_ring->napi);
+		qlcnic_83xx_enable_intr(adapter, sds_ring);
+	}
+
+	if (adapter->flags & QLCNIC_MSIX_ENABLED) {
+		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+			tx_ring = &adapter->tx_ring[ring];
+			napi_enable(&tx_ring->napi);
+			qlcnic_83xx_enable_tx_intr(adapter, tx_ring);
+		}
+	}
+}
+
+void qlcnic_83xx_napi_disable(struct qlcnic_adapter *adapter)
+{
+	int ring;
+	struct qlcnic_host_sds_ring *sds_ring;
+	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+	struct qlcnic_host_tx_ring *tx_ring;
+
+	if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
+		return;
+
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+		writel(1, sds_ring->crb_intr_mask);
+		napi_synchronize(&sds_ring->napi);
+		napi_disable(&sds_ring->napi);
+	}
+
+	if (adapter->flags & QLCNIC_MSIX_ENABLED) {
+		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+			tx_ring = &adapter->tx_ring[ring];
+			qlcnic_83xx_disable_tx_intr(adapter, tx_ring);
+			napi_synchronize(&tx_ring->napi);
+			napi_disable(&tx_ring->napi);
+		}
+	}
+}
+
+int qlcnic_83xx_napi_add(struct qlcnic_adapter *adapter,
+			 struct net_device *netdev)
+{
+	int ring, max_sds_rings;
+	struct qlcnic_host_sds_ring *sds_ring;
+	struct qlcnic_host_tx_ring *tx_ring;
+	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+
+	if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
+		return -ENOMEM;
+
+	max_sds_rings = adapter->max_sds_rings;
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+		if (adapter->flags & QLCNIC_MSIX_ENABLED)
+			netif_napi_add(netdev, &sds_ring->napi,
+				       qlcnic_83xx_rx_poll,
+				       QLCNIC_NETDEV_WEIGHT * 2);
+		else
+			netif_napi_add(netdev, &sds_ring->napi,
+				       qlcnic_83xx_poll,
+				       QLCNIC_NETDEV_WEIGHT / max_sds_rings);
+	}
+
+	if (qlcnic_alloc_tx_rings(adapter, netdev)) {
+		qlcnic_free_sds_rings(recv_ctx);
+		return -ENOMEM;
+	}
+
+	if (adapter->flags & QLCNIC_MSIX_ENABLED) {
+		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+			tx_ring = &adapter->tx_ring[ring];
+			netif_napi_add(netdev, &tx_ring->napi,
+				       qlcnic_83xx_msix_tx_poll,
+				       QLCNIC_NETDEV_WEIGHT);
+		}
+	}
+
+	return 0;
+}
+
+void qlcnic_83xx_napi_del(struct qlcnic_adapter *adapter)
+{
+	int ring;
+	struct qlcnic_host_sds_ring *sds_ring;
+	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+	struct qlcnic_host_tx_ring *tx_ring;
+
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+		netif_napi_del(&sds_ring->napi);
+	}
+
+	qlcnic_free_sds_rings(adapter->recv_ctx);
+
+	if ((adapter->flags & QLCNIC_MSIX_ENABLED)) {
+		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+			tx_ring = &adapter->tx_ring[ring];
+			netif_napi_del(&tx_ring->napi);
+		}
+	}
+
+	qlcnic_free_tx_rings(adapter);
+}
+
+void qlcnic_83xx_process_rcv_diag(struct qlcnic_adapter *adapter,
+				  int ring, u64 sts_data[])
+{
+	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
+	struct sk_buff *skb;
+	struct qlcnic_host_rds_ring *rds_ring;
+	int index, length;
+
+	if (unlikely(ring >= adapter->max_rds_rings))
+		return;
+
+	rds_ring = &recv_ctx->rds_rings[ring];
+	index = qlcnic_83xx_hndl(sts_data[0]);
+	if (unlikely(index >= rds_ring->num_desc))
+		return;
+
+	length = qlcnic_83xx_pktln(sts_data[0]);
+
+	skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
+	if (!skb)
+		return;
+
+	if (length > rds_ring->skb_size)
+		skb_put(skb, rds_ring->skb_size);
+	else
+		skb_put(skb, length);
+
+	if (!qlcnic_check_loopback_buff(skb->data, adapter->mac_addr))
+		adapter->ahw->diag_cnt++;
+	else
+		dump_skb(skb, adapter);
+
+	dev_kfree_skb_any(skb);
+	return;
+}
+
+void qlcnic_83xx_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
+{
+	struct qlcnic_adapter *adapter = sds_ring->adapter;
+	struct status_desc *desc;
+	u64 sts_data[2];
+	int ring, opcode;
+	u32 consumer = sds_ring->consumer;
+
+	desc = &sds_ring->desc_head[consumer];
+	sts_data[0] = le64_to_cpu(desc->status_desc_data[0]);
+	sts_data[1] = le64_to_cpu(desc->status_desc_data[1]);
+	opcode = qlcnic_83xx_opcode(sts_data[1]);
+	if (!opcode)
+		return;
+
+	ring = QLCNIC_FETCH_RING_ID(qlcnic_83xx_hndl(sts_data[0]));
+	qlcnic_83xx_process_rcv_diag(adapter, ring, sts_data);
+	desc = &sds_ring->desc_head[consumer];
+	desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
+	consumer = get_next_index(consumer, sds_ring->num_desc);
+	sds_ring->consumer = consumer;
+	writel(consumer, sds_ring->crb_sts_consumer);
+}

drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c

@@ -303,6 +303,7 @@ static struct qlcnic_nic_template qlcnic_ops = {
 	.request_reset		= qlcnic_82xx_dev_request_reset,
 	.cancel_idc_work	= qlcnic_82xx_cancel_idc_work,
 	.napi_add		= qlcnic_82xx_napi_add,
+	.napi_del		= qlcnic_82xx_napi_del,
 	.config_ipaddr		= qlcnic_82xx_config_ipaddr,
 	.clear_legacy_intr	= qlcnic_82xx_clear_legacy_intr,
 };
@@ -1201,7 +1202,7 @@ __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
 
 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 		rds_ring = &adapter->recv_ctx->rds_rings[ring];
-		qlcnic_post_rx_buffers(adapter, rds_ring);
+		qlcnic_post_rx_buffers(adapter, rds_ring, ring);
 	}
 
 	qlcnic_set_multi(netdev);
@@ -1380,21 +1381,11 @@ out:
 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
 {
 	int err = 0;
-	adapter->ahw = kzalloc(sizeof(struct qlcnic_hardware_context),
-				GFP_KERNEL);
-	if (!adapter->ahw) {
-		dev_err(&adapter->pdev->dev,
-			"Failed to allocate recv ctx resources for adapter\n");
-		err = -ENOMEM;
-		goto err_out;
-	}
 	adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
 				GFP_KERNEL);
 	if (!adapter->recv_ctx) {
 		dev_err(&adapter->pdev->dev,
 			"Failed to allocate recv ctx resources for adapter\n");
-		kfree(adapter->ahw);
-		adapter->ahw = NULL;
 		err = -ENOMEM;
 		goto err_out;
 	}
@@ -1402,6 +1393,8 @@ static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
 	adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
 	adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
 	adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
+	/* clear stats */
+	memset(&adapter->stats, 0, sizeof(adapter->stats));
 err_out:
 	return err;
 }
@@ -1415,8 +1408,8 @@ static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
 		vfree(adapter->ahw->fw_dump.tmpl_hdr);
 		adapter->ahw->fw_dump.tmpl_hdr = NULL;
 	}
-	kfree(adapter->ahw);
+
-	adapter->ahw = NULL;
+	adapter->ahw->fw_dump.tmpl_hdr = NULL;
 }
 
 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
@@ -1436,6 +1429,7 @@ int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
 
 	adapter->max_sds_rings = 1;
 	adapter->ahw->diag_test = test;
+	adapter->ahw->linkup = 0;
 
 	ret = qlcnic_attach(adapter);
 	if (ret) {
@@ -1452,7 +1446,7 @@ int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
 
 	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 		rds_ring = &adapter->recv_ctx->rds_rings[ring];
-		qlcnic_post_rx_buffers(adapter, rds_ring);
+		qlcnic_post_rx_buffers(adapter, rds_ring, ring);
 	}
 
 	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
@@ -1601,6 +1595,66 @@ qlcnic_alloc_msix_entries(struct qlcnic_adapter *adapter, u16 count)
 	return -ENOMEM;
 }
 
+void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
+{
+	int ring;
+	struct qlcnic_host_tx_ring *tx_ring;
+
+	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		tx_ring = &adapter->tx_ring[ring];
+		if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
+			vfree(tx_ring->cmd_buf_arr);
+			tx_ring->cmd_buf_arr = NULL;
+		}
+	}
+	if (adapter->tx_ring != NULL)
+		kfree(adapter->tx_ring);
+}
+
+int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
+			  struct net_device *netdev)
+{
+	int ring, size, vector, index;
+	struct qlcnic_host_tx_ring *tx_ring;
+	struct qlcnic_cmd_buffer *cmd_buf_arr;
+
+	size = adapter->max_drv_tx_rings * sizeof(struct qlcnic_host_tx_ring);
+	tx_ring = kzalloc(size, GFP_KERNEL);
+	if (tx_ring == NULL) {
+		dev_err(&netdev->dev, "failed to allocate tx rings\n");
+		return -ENOMEM;
+	}
+	adapter->tx_ring = tx_ring;
+
+	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		tx_ring = &adapter->tx_ring[ring];
+		tx_ring->num_desc = adapter->num_txd;
+		tx_ring->txq = netdev_get_tx_queue(netdev, ring);
+		cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
+		if (cmd_buf_arr == NULL) {
+			dev_err(&netdev->dev,
+				"failed to allocate cmd buffer ring\n");
+			qlcnic_free_tx_rings(adapter);
+			return -ENOMEM;
+		}
+		memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
+		tx_ring->cmd_buf_arr = cmd_buf_arr;
+	}
+
+	if (qlcnic_83xx_check(adapter)) {
+		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+			tx_ring = &adapter->tx_ring[ring];
+			tx_ring->adapter = adapter;
+			if (adapter->flags & QLCNIC_MSIX_ENABLED) {
+				index = adapter->max_sds_rings + ring;
+				vector = adapter->msix_entries[index].vector;
+				tx_ring->irq = vector;
+			}
+		}
+	}
+	return 0;
+}
+
 static int __devinit
 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {