1 files changed, 279 insertions, 174 deletions

diff --git a/drivers/net/qlcnic/qlcnic_init.c b/drivers/net/qlcnic/qlcnic_init.c
index 71a4e664ad76..0d180c6e41fe 100644
--- a/drivers/net/qlcnic/qlcnic_init.c
+++ b/drivers/net/qlcnic/qlcnic_init.c
@@ -25,6 +25,7 @@
 #include <linux/netdevice.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
+#include <linux/if_vlan.h>
 #include "qlcnic.h"
 
 struct crb_addr_pair {
@@ -45,6 +46,9 @@ static void
 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
 		struct qlcnic_host_rds_ring *rds_ring);
 
+static int
+qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter);
+
 static void crb_addr_transform_setup(void)
 {
 	crb_addr_transform(XDMA);
@@ -112,14 +116,37 @@ void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter)
 		rds_ring = &recv_ctx->rds_rings[ring];
 		for (i = 0; i < rds_ring->num_desc; ++i) {
 			rx_buf = &(rds_ring->rx_buf_arr[i]);
-			if (rx_buf->state == QLCNIC_BUFFER_FREE)
+			if (rx_buf->skb == NULL)
 				continue;
+
 			pci_unmap_single(adapter->pdev,
 					rx_buf->dma,
 					rds_ring->dma_size,
 					PCI_DMA_FROMDEVICE);
-			if (rx_buf->skb != NULL)
-				dev_kfree_skb_any(rx_buf->skb);
+
+			dev_kfree_skb_any(rx_buf->skb);
+		}
+	}
+}
+
+void qlcnic_reset_rx_buffers_list(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_recv_context *recv_ctx;
+	struct qlcnic_host_rds_ring *rds_ring;
+	struct qlcnic_rx_buffer *rx_buf;
+	int i, ring;
+
+	recv_ctx = &adapter->recv_ctx;
+	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+		rds_ring = &recv_ctx->rds_rings[ring];
+
+		INIT_LIST_HEAD(&rds_ring->free_list);
+
+		rx_buf = rds_ring->rx_buf_arr;
+		for (i = 0; i < rds_ring->num_desc; i++) {
+			list_add_tail(&rx_buf->list,
+					&rds_ring->free_list);
+			rx_buf++;
 		}
 	}
 }
@@ -181,7 +208,9 @@ skip_rds:
 
 	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)
@@ -230,14 +259,14 @@ int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
 		switch (ring) {
 		case RCV_RING_NORMAL:
 			rds_ring->num_desc = adapter->num_rxd;
-			rds_ring->dma_size = QLCNIC_P3_RX_BUF_MAX_LEN;
+			rds_ring->dma_size = QLCNIC_P3P_RX_BUF_MAX_LEN;
 			rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
 			break;
 
 		case RCV_RING_JUMBO:
 			rds_ring->num_desc = adapter->num_jumbo_rxd;
 			rds_ring->dma_size =
-				QLCNIC_P3_RX_JUMBO_BUF_MAX_LEN;
+				QLCNIC_P3P_RX_JUMBO_BUF_MAX_LEN;
 
 			if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
 				rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
@@ -264,7 +293,6 @@ int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
 			list_add_tail(&rx_buf->list,
 					&rds_ring->free_list);
 			rx_buf->ref_handle = i;
-			rx_buf->state = QLCNIC_BUFFER_FREE;
 			rx_buf++;
 		}
 		spin_lock_init(&rds_ring->lock);
@@ -411,11 +439,14 @@ int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
 	u32 off;
 	struct pci_dev *pdev = adapter->pdev;
 
-	/* resetall */
+	QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
+	QLCWR32(adapter, CRB_RCVPEG_STATE, 0);
+
 	qlcnic_rom_lock(adapter);
-	QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xffffffff);
+	QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
 	qlcnic_rom_unlock(adapter);
 
+	/* Init HW CRB block */
 	if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
 			qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
 		dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
@@ -496,13 +527,10 @@ int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
 	}
 	kfree(buf);
 
-	/* p2dn replyCount */
+	/* Initialize protocol process engine */
 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
-	/* disable_peg_cache 0 & 1*/
 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
-
-	/* peg_clr_all */
 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
@@ -511,9 +539,87 @@ int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
 	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
+	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x8, 0);
+	QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0xc, 0);
+	msleep(1);
+	QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
+	QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
 	return 0;
 }
 
+static int qlcnic_cmd_peg_ready(struct qlcnic_adapter *adapter)
+{
+	u32 val;
+	int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT;
+
+	do {
+		val = QLCRD32(adapter, CRB_CMDPEG_STATE);
+
+		switch (val) {
+		case PHAN_INITIALIZE_COMPLETE:
+		case PHAN_INITIALIZE_ACK:
+			return 0;
+		case PHAN_INITIALIZE_FAILED:
+			goto out_err;
+		default:
+			break;
+		}
+
+		msleep(QLCNIC_CMDPEG_CHECK_DELAY);
+
+	} while (--retries);
+
+	QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
+
+out_err:
+	dev_err(&adapter->pdev->dev, "Command Peg initialization not "
+		      "complete, state: 0x%x.\n", val);
+	return -EIO;
+}
+
+static int
+qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
+{
+	u32 val;
+	int retries = QLCNIC_RCVPEG_CHECK_RETRY_COUNT;
+
+	do {
+		val = QLCRD32(adapter, CRB_RCVPEG_STATE);
+
+		if (val == PHAN_PEG_RCV_INITIALIZED)
+			return 0;
+
+		msleep(QLCNIC_RCVPEG_CHECK_DELAY);
+
+	} while (--retries);
+
+	if (!retries) {
+		dev_err(&adapter->pdev->dev, "Receive Peg initialization not "
+			      "complete, state: 0x%x.\n", val);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+int
+qlcnic_check_fw_status(struct qlcnic_adapter *adapter)
+{
+	int err;
+
+	err = qlcnic_cmd_peg_ready(adapter);
+	if (err)
+		return err;
+
+	err = qlcnic_receive_peg_ready(adapter);
+	if (err)
+		return err;
+
+	QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
+
+	return err;
+}
+
 int
 qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
 
@@ -521,39 +627,54 @@ qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
 	u32 val;
 
 	val = QLCRD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
-	val = (val >> (adapter->portnum * 4)) & 0xf;
-
-	if ((val & 0x3) != 1) {
-		dev_err(&adapter->pdev->dev, "Not an Ethernet NIC func=%u\n",
-									val);
+	val = QLC_DEV_GET_DRV(val, adapter->portnum);
+	if ((val & 0x3) != QLCNIC_TYPE_NIC) {
+		dev_err(&adapter->pdev->dev,
+			"Not an Ethernet NIC func=%u\n", val);
 		return -EIO;
 	}
-
 	adapter->physical_port = (val >> 2);
-
 	if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
-		timeo = 30;
+		timeo = QLCNIC_INIT_TIMEOUT_SECS;
 
 	adapter->dev_init_timeo = timeo;
 
 	if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
-		timeo = 10;
+		timeo = QLCNIC_RESET_TIMEOUT_SECS;
 
 	adapter->reset_ack_timeo = timeo;
 
 	return 0;
 }
 
+int
+qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
+{
+	u32 ver = -1, min_ver;
+
+	qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET, (int *)&ver);
+
+	ver = QLCNIC_DECODE_VERSION(ver);
+	min_ver = QLCNIC_MIN_FW_VERSION;
+
+	if (ver < min_ver) {
+		dev_err(&adapter->pdev->dev,
+			"firmware version %d.%d.%d unsupported."
+			"Min supported version %d.%d.%d\n",
+			_major(ver), _minor(ver), _build(ver),
+			_major(min_ver), _minor(min_ver), _build(min_ver));
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int
 qlcnic_has_mn(struct qlcnic_adapter *adapter)
 {
-	u32 capability, flashed_ver;
+	u32 capability;
 	capability = 0;
 
-	qlcnic_rom_fast_read(adapter,
-			QLCNIC_FW_VERSION_OFFSET, (int *)&flashed_ver);
-	flashed_ver = QLCNIC_DECODE_VERSION(flashed_ver);
-
 	capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
 	if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
 		return 1;
@@ -863,54 +984,47 @@ qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
 	return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
 }
 
-int
-qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
+static void qlcnic_rom_lock_recovery(struct qlcnic_adapter *adapter)
 {
-	u32 count, old_count;
-	u32 val, version, major, minor, build;
-	int i, timeout;
-
-	if (adapter->need_fw_reset)
-		return 1;
+	if (qlcnic_pcie_sem_lock(adapter, 2, QLCNIC_ROM_LOCK_ID))
+		dev_info(&adapter->pdev->dev, "Resetting rom_lock\n");
 
-	/* last attempt had failed */
-	if (QLCRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
-		return 1;
+	qlcnic_pcie_sem_unlock(adapter, 2);
+}
 
-	old_count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
+static int
+qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter)
+{
+	u32 heartbeat, ret = -EIO;
+	int retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT;
 
-	for (i = 0; i < 10; i++) {
+	adapter->heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
 
-		timeout = msleep_interruptible(200);
-		if (timeout) {
-			QLCWR32(adapter, CRB_CMDPEG_STATE,
-					PHAN_INITIALIZE_FAILED);
-			return -EINTR;
+	do {
+		msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
+		heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
+		if (heartbeat != adapter->heartbeat) {
+			ret = QLCNIC_RCODE_SUCCESS;
+			break;
 		}
+	} while (--retries);
 
-		count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
-		if (count != old_count)
-			break;
-	}
+	return ret;
+}
 
-	/* firmware is dead */
-	if (count == old_count)
+int
+qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
+{
+	if (qlcnic_check_fw_hearbeat(adapter)) {
+		qlcnic_rom_lock_recovery(adapter);
 		return 1;
+	}
 
-	/* check if we have got newer or different file firmware */
-	if (adapter->fw) {
-
-		val = qlcnic_get_fw_version(adapter);
-
-		version = QLCNIC_DECODE_VERSION(val);
-
-		major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
-		minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
-		build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
+	if (adapter->need_fw_reset)
+		return 1;
 
-		if (version > QLCNIC_VERSION_CODE(major, minor, build))
-			return 1;
-	}
+	if (adapter->fw)
+		return 1;
 
 	return 0;
 }
@@ -1007,7 +1121,7 @@ static int
 qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
 {
 	__le32 val;
-	u32 ver, min_ver, bios, min_size;
+	u32 ver, bios, min_size;
 	struct pci_dev *pdev = adapter->pdev;
 	const struct firmware *fw = adapter->fw;
 	u8 fw_type = adapter->fw_type;
@@ -1029,12 +1143,9 @@ qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
 		return -EINVAL;
 
 	val = qlcnic_get_fw_version(adapter);
-
-	min_ver = QLCNIC_VERSION_CODE(4, 0, 216);
-
 	ver = QLCNIC_DECODE_VERSION(val);
 
-	if ((_major(ver) > _QLCNIC_LINUX_MAJOR) || (ver < min_ver)) {
+	if (ver < QLCNIC_MIN_FW_VERSION) {
 		dev_err(&pdev->dev,
 				"%s: firmware version %d.%d.%d unsupported\n",
 		fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
@@ -1049,18 +1160,6 @@ qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
 		return -EINVAL;
 	}
 
-	/* check if flashed firmware is newer */
-	if (qlcnic_rom_fast_read(adapter,
-			QLCNIC_FW_VERSION_OFFSET, (int *)&val))
-		return -EIO;
-
-	val = QLCNIC_DECODE_VERSION(val);
-	if (val > ver) {
-		dev_info(&pdev->dev, "%s: firmware is older than flash\n",
-				fw_name[fw_type]);
-		return -EINVAL;
-	}
-
 	QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
 	return 0;
 }
@@ -1122,73 +1221,6 @@ qlcnic_release_firmware(struct qlcnic_adapter *adapter)
 	adapter->fw = NULL;
 }
 
-int qlcnic_phantom_init(struct qlcnic_adapter *adapter)
-{
-	u32 val;
-	int retries = 60;
-
-	do {
-		val = QLCRD32(adapter, CRB_CMDPEG_STATE);
-
-		switch (val) {
-		case PHAN_INITIALIZE_COMPLETE:
-		case PHAN_INITIALIZE_ACK:
-			return 0;
-		case PHAN_INITIALIZE_FAILED:
-			goto out_err;
-		default:
-			break;
-		}
-
-		msleep(500);
-
-	} while (--retries);
-
-	QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
-
-out_err:
-	dev_err(&adapter->pdev->dev, "firmware init failed\n");
-	return -EIO;
-}
-
-static int
-qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
-{
-	u32 val;
-	int retries = 2000;
-
-	do {
-		val = QLCRD32(adapter, CRB_RCVPEG_STATE);
-
-		if (val == PHAN_PEG_RCV_INITIALIZED)
-			return 0;
-
-		msleep(10);
-
-	} while (--retries);
-
-	if (!retries) {
-		dev_err(&adapter->pdev->dev, "Receive Peg initialization not "
-			      "complete, state: 0x%x.\n", val);
-		return -EIO;
-	}
-
-	return 0;
-}
-
-int qlcnic_init_firmware(struct qlcnic_adapter *adapter)
-{
-	int err;
-
-	err = qlcnic_receive_peg_ready(adapter);
-	if (err)
-		return err;
-
-	QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
-
-	return err;
-}
-
 static void
 qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
 				struct qlcnic_fw_msg *msg)
@@ -1265,15 +1297,13 @@ qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
 	dma_addr_t dma;
 	struct pci_dev *pdev = adapter->pdev;
 
-	buffer->skb = dev_alloc_skb(rds_ring->skb_size);
-	if (!buffer->skb) {
+	skb = dev_alloc_skb(rds_ring->skb_size);
+	if (!skb) {
 		adapter->stats.skb_alloc_failure++;
 		return -ENOMEM;
 	}
 
-	skb = buffer->skb;
-
-	skb_reserve(skb, 2);
+	skb_reserve(skb, NET_IP_ALIGN);
 
 	dma = pci_map_single(pdev, skb->data,
 			rds_ring->dma_size, PCI_DMA_FROMDEVICE);
@@ -1281,13 +1311,11 @@ qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
 	if (pci_dma_mapping_error(pdev, dma)) {
 		adapter->stats.rx_dma_map_error++;
 		dev_kfree_skb_any(skb);
-		buffer->skb = NULL;
 		return -ENOMEM;
 	}
 
 	buffer->skb = skb;
 	buffer->dma = dma;
-	buffer->state = QLCNIC_BUFFER_BUSY;
 
 	return 0;
 }
@@ -1300,30 +1328,56 @@ static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
 
 	buffer = &rds_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_DMA_FROMDEVICE);
 
 	skb = buffer->skb;
-	if (!skb) {
-		adapter->stats.null_skb++;
-		goto no_skb;
-	}
 
-	if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
+	if (likely(adapter->rx_csum && (cksum == STATUS_CKSUM_OK ||
+						cksum == STATUS_CKSUM_LOOP))) {
 		adapter->stats.csummed++;
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
 	} else {
-		skb->ip_summed = CHECKSUM_NONE;
+		skb_checksum_none_assert(skb);
 	}
 
 	skb->dev = adapter->netdev;
 
 	buffer->skb = NULL;
-no_skb:
-	buffer->state = QLCNIC_BUFFER_FREE;
+
 	return skb;
 }
 
+static int
+qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, struct sk_buff *skb,
+			u16 *vlan_tag)
+{
+	struct ethhdr *eth_hdr;
+
+	if (!__vlan_get_tag(skb, vlan_tag)) {
+		eth_hdr = (struct ethhdr *) skb->data;
+		memmove(skb->data + VLAN_HLEN, eth_hdr, ETH_ALEN * 2);
+		skb_pull(skb, VLAN_HLEN);
+	}
+	if (!adapter->pvid)
+		return 0;
+
+	if (*vlan_tag == adapter->pvid) {
+		/* Outer vlan tag. Packet should follow non-vlan path */
+		*vlan_tag = 0xffff;
+		return 0;
+	}
+	if (adapter->flags & QLCNIC_TAGGING_ENABLED)
+		return 0;
+
+	return -EINVAL;
+}
+
 static struct qlcnic_rx_buffer *
 qlcnic_process_rcv(struct qlcnic_adapter *adapter,
 		struct qlcnic_host_sds_ring *sds_ring,
@@ -1335,6 +1389,7 @@ qlcnic_process_rcv(struct qlcnic_adapter *adapter,
 	struct sk_buff *skb;
 	struct qlcnic_host_rds_ring *rds_ring;
 	int index, length, cksum, pkt_offset;
+	u16 vid = 0xffff;
 
 	if (unlikely(ring >= adapter->max_rds_rings))
 		return NULL;
@@ -1363,10 +1418,18 @@ qlcnic_process_rcv(struct qlcnic_adapter *adapter,
 	if (pkt_offset)
 		skb_pull(skb, pkt_offset);
 
-	skb->truesize = skb->len + sizeof(struct sk_buff);
+	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);
 
-	napi_gro_receive(&sds_ring->napi, skb);
+	if ((vid != 0xffff) && adapter->vlgrp)
+		vlan_gro_receive(&sds_ring->napi, adapter->vlgrp, vid, skb);
+	else
+		napi_gro_receive(&sds_ring->napi, skb);
 
 	adapter->stats.rx_pkts++;
 	adapter->stats.rxbytes += length;
@@ -1395,6 +1458,7 @@ qlcnic_process_lro(struct qlcnic_adapter *adapter,
 	int index;
 	u16 lro_length, length, data_offset;
 	u32 seq_number;
+	u16 vid = 0xffff;
 
 	if (unlikely(ring > adapter->max_rds_rings))
 		return NULL;
@@ -1425,9 +1489,14 @@ qlcnic_process_lro(struct qlcnic_adapter *adapter,
 
 	skb_put(skb, lro_length + data_offset);
 
-	skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
-
 	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);
 
 	iph = (struct iphdr *)skb->data;
@@ -1442,7 +1511,10 @@ qlcnic_process_lro(struct qlcnic_adapter *adapter,
 
 	length = skb->len;
 
-	netif_receive_skb(skb);
+	if ((vid != 0xffff) && adapter->vlgrp)
+		vlan_hwaccel_receive_skb(skb, adapter->vlgrp, vid);
+	else
+		netif_receive_skb(skb);
 
 	adapter->stats.lro_pkts++;
 	adapter->stats.lrobytes += length;
@@ -1495,7 +1567,7 @@ qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
 
 		WARN_ON(desc_cnt > 1);
 
-		if (rxbuf)
+		if (likely(rxbuf))
 			list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
 		else
 			adapter->stats.null_rxbuf++;
@@ -1546,8 +1618,6 @@ qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
 	int producer, count = 0;
 	struct list_head *head;
 
-	spin_lock(&rds_ring->lock);
-
 	producer = rds_ring->producer;
 
 	head = &rds_ring->free_list;
@@ -1577,7 +1647,6 @@ qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
 		writel((producer-1) & (rds_ring->num_desc-1),
 				rds_ring->crb_rcv_producer);
 	}
-	spin_unlock(&rds_ring->lock);
 }
 
 static void
@@ -1624,6 +1693,18 @@ qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
 	spin_unlock(&rds_ring->lock);
 }
 
+static void dump_skb(struct sk_buff *skb)
+{
+	int i;
+	unsigned char *data = skb->data;
+
+	for (i = 0; i < skb->len; i++) {
+		printk("%02x ", data[i]);
+		if ((i & 0x0f) == 8)
+			printk("\n");
+	}
+}
+
 static struct qlcnic_rx_buffer *
 qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
 		struct qlcnic_host_sds_ring *sds_ring,
@@ -1654,15 +1735,18 @@ qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
 	if (!skb)
 		return buffer;
 
-	skb_put(skb, rds_ring->skb_size);
+	if (length > rds_ring->skb_size)
+		skb_put(skb, rds_ring->skb_size);
+	else
+		skb_put(skb, length);
 
 	if (pkt_offset)
 		skb_pull(skb, pkt_offset);
 
-	skb->truesize = skb->len + sizeof(struct sk_buff);
-
 	if (!qlcnic_check_loopback_buff(skb->data))
 		adapter->diag_cnt++;
+	else
+		dump_skb(skb);
 
 	dev_kfree_skb_any(skb);
 	adapter->stats.rx_pkts++;
@@ -1701,3 +1785,24 @@ qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
 	sds_ring->consumer = consumer;
 	writel(consumer, sds_ring->crb_sts_consumer);
 }
+
+void
+qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
+			u8 alt_mac, u8 *mac)
+{
+	u32 mac_low, mac_high;
+	int i;
+
+	mac_low = QLCRD32(adapter, off1);
+	mac_high = QLCRD32(adapter, off2);
+
+	if (alt_mac) {
+		mac_low |= (mac_low >> 16) | (mac_high << 16);
+		mac_high >>= 16;
+	}
+
+	for (i = 0; i < 2; i++)
+		mac[i] = (u8)(mac_high >> ((1 - i) * 8));
+	for (i = 2; i < 6; i++)
+		mac[i] = (u8)(mac_low >> ((5 - i) * 8));
+}