Patchwork [V1,08/14] qlcnic: 83xx CNA inter driver communication mechanism

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Submitter Sony Chacko
Date Jan. 1, 2013, 2:11 p.m.
Message ID <1357049515-829-1-git-send-email-sony.chacko@qlogic.com>
Download mbox | patch
Permalink /patch/208926/
State Accepted
Delegated to: David Miller
Headers show

Comments

Sony Chacko - Jan. 1, 2013, 2:11 p.m.
From: Sony Chacko <sony.chacko@qlogic.com>

Inter Driver Communication (IDC) module.
CNA function drivers(ISCSI, FCOE and NIC) which shares the adapter
relies on IDC mechanism for gracefull shut down, restart and
firmware error recovery.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
---
 drivers/net/ethernet/qlogic/qlcnic/Makefile        |    3 +-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h        |   14 +
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c    |  215 +++-
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h    |   80 +
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c  | 1513 ++++++++++++++++++++
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c   |   24 +-
 6 files changed, 1830 insertions(+), 19 deletions(-)
 create mode 100644 drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c

Patch

diff --git a/drivers/net/ethernet/qlogic/qlcnic/Makefile b/drivers/net/ethernet/qlogic/qlcnic/Makefile
index f8d85ae..799325d 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/Makefile
+++ b/drivers/net/ethernet/qlogic/qlcnic/Makefile
@@ -6,4 +6,5 @@  obj-$(CONFIG_QLCNIC) := qlcnic.o
 
 qlcnic-y := qlcnic_hw.o qlcnic_main.o qlcnic_init.o \
 	qlcnic_ethtool.o qlcnic_ctx.o qlcnic_io.o \
-	qlcnic_sysfs.o qlcnic_minidump.o qlcnic_83xx_hw.o
+	qlcnic_sysfs.o qlcnic_minidump.o qlcnic_83xx_hw.o \
+	qlcnic_83xx_init.o
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index f0bec7e..9a6d093 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -299,6 +299,12 @@  struct qlcnic_fdt {
 
 extern char qlcnic_driver_name[];
 
+extern int qlcnic_use_msi;
+extern int qlcnic_use_msi_x;
+extern int qlcnic_auto_fw_reset;
+extern int qlcnic_load_fw_file;
+extern int qlcnic_config_npars;
+
 /* Number of status descriptors to handle per interrupt */
 #define MAX_STATUS_HANDLE	(64)
 
@@ -436,6 +442,8 @@  struct qlcnic_hardware_context {
 	struct qlcnic_nic_intr_coalesce coal;
 	struct qlcnic_fw_dump fw_dump;
 	struct qlcnic_fdt fdt;
+	struct qlc_83xx_idc idc;
+	struct qlc_83xx_fw_info fw_info;
 	struct qlcnic_intrpt_config *intr_tbl;
 	u32 *reg_tbl;
 	u32 *ext_reg_tbl;
@@ -947,6 +955,7 @@  struct qlcnic_ipaddr {
 #define QLCNIC_TEST_IN_PROGRESS		52
 #define QLCNIC_UNDEFINED_ERROR		53
 #define QLCNIC_LB_CABLE_NOT_CONN	54
+#define QLCNIC_ILB_MAX_RCV_LOOP	10
 
 struct qlcnic_filter {
 	struct hlist_node fnode;
@@ -1470,6 +1479,7 @@  int qlcnic_enable_msix(struct qlcnic_adapter *, u32);
 /*  eSwitch management functions */
 int qlcnic_config_switch_port(struct qlcnic_adapter *,
 				struct qlcnic_esw_func_cfg *);
+
 int qlcnic_get_eswitch_port_config(struct qlcnic_adapter *,
 				struct qlcnic_esw_func_cfg *);
 int qlcnic_config_port_mirroring(struct qlcnic_adapter *, u8, u8, u8);
@@ -1501,6 +1511,9 @@  void qlcnic_set_vlan_config(struct qlcnic_adapter *,
 			    struct qlcnic_esw_func_cfg *);
 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *,
 				      struct qlcnic_esw_func_cfg *);
+
+void qlcnic_down(struct qlcnic_adapter *, struct net_device *);
+int qlcnic_up(struct qlcnic_adapter *, struct net_device *);
 void __qlcnic_down(struct qlcnic_adapter *, struct net_device *);
 void qlcnic_detach(struct qlcnic_adapter *);
 void qlcnic_teardown_intr(struct qlcnic_adapter *);
@@ -1508,6 +1521,7 @@  int qlcnic_attach(struct qlcnic_adapter *);
 int __qlcnic_up(struct qlcnic_adapter *, struct net_device *);
 void qlcnic_restore_indev_addr(struct net_device *, unsigned long);
 
+int qlcnic_check_temp(struct qlcnic_adapter *);
 
 /*
  * QLOGIC Board information
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index a4a521e..8fdc4e6 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -267,6 +267,8 @@  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,
+	.request_reset          = qlcnic_83xx_idc_request_reset,
+	.cancel_idc_work        = qlcnic_83xx_idc_exit,
 	.napi_add		= qlcnic_83xx_napi_add,
 	.napi_del		= qlcnic_83xx_napi_del,
 	.config_ipaddr		= qlcnic_83xx_config_ipaddr,
@@ -589,6 +591,7 @@  int qlcnic_83xx_get_port_info(struct qlcnic_adapter *adapter)
 			adapter->ahw->port_type = QLCNIC_XGBE;
 		else
 			adapter->ahw->port_type = QLCNIC_GBE;
+
 		if (QLC_83XX_AUTONEG(adapter->ahw->port_config))
 			adapter->ahw->link_autoneg = AUTONEG_ENABLE;
 	}
@@ -603,6 +606,7 @@  void qlcnic_83xx_enable_mbx_intrpt(struct qlcnic_adapter *adapter)
 		val = BIT_2 | ((adapter->ahw->num_msix - 1) << 8);
 	else
 		val = BIT_2;
+
 	QLCWRX(adapter->ahw, QLCNIC_MBX_INTR_ENBL, val);
 }
 
@@ -612,9 +616,7 @@  void qlcnic_83xx_check_vf(struct qlcnic_adapter *adapter,
 	u32 op_mode, priv_level;
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 
-	/* Determine FW API version */
 	ahw->fw_hal_version = 2;
-	/* Find PCI function number */
 	qlcnic_get_func_no(adapter);
 
 	/* Determine function privilege level */
@@ -691,6 +693,13 @@  int qlcnic_83xx_mbx_op(struct qlcnic_adapter *adapter,
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 
 	opcode = LSW(cmd->req.arg[0]);
+	if (!test_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status)) {
+		dev_info(&adapter->pdev->dev,
+			 "Mailbox cmd attempted, 0x%x\n", opcode);
+		dev_info(&adapter->pdev->dev, "Mailbox detached\n");
+		return 0;
+	}
+
 	spin_lock(&ahw->mbx_lock);
 	mbx_val = QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL);
 
@@ -853,6 +862,7 @@  static void qlcnic_83xx_handle_idc_comp_aen(struct qlcnic_adapter *adapter,
 {
 	dev_dbg(&adapter->pdev->dev, "Completion AEN:0x%x.\n",
 		QLCNIC_MBX_RSP(data[0]));
+	clear_bit(QLC_83XX_IDC_COMP_AEN, &adapter->ahw->idc.status);
 	return;
 }
 
@@ -1306,7 +1316,7 @@  int qlcnic_83xx_nic_set_promisc(struct qlcnic_adapter *adapter, u32 mode)
 int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 {
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
-	int status = 0;
+	int status = 0, loop = 0;
 	u32 config;
 
 	status = qlcnic_83xx_get_port_config(adapter);
@@ -1314,6 +1324,7 @@  int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 		return status;
 
 	config = ahw->port_config;
+	set_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
 
 	if (mode == QLCNIC_ILB_MODE)
 		ahw->port_config |= QLC_83XX_CFG_LOOPBACK_HSS;
@@ -1326,9 +1337,21 @@  int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 			"Failed to Set Loopback Mode = 0x%x.\n",
 			ahw->port_config);
 		ahw->port_config = config;
+		clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
 		return status;
 	}
 
+	/* Wait until firmware send IDC Completion AEN */
+	do {
+		msleep(300);
+		if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP) {
+			dev_err(&adapter->pdev->dev,
+				"FW did not generate IDC completion AEN\n");
+			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
+			return -EIO;
+		}
+	} while (test_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status));
+
 	qlcnic_sre_macaddr_change(adapter, adapter->mac_addr, 0,
 				  QLCNIC_MAC_ADD);
 	return status;
@@ -1337,9 +1360,10 @@  int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 {
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
-	int status = 0;
+	int status = 0, loop = 0;
 	u32 config = ahw->port_config;
 
+	set_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
 	if (mode == QLCNIC_ILB_MODE)
 		ahw->port_config &= ~QLC_83XX_CFG_LOOPBACK_HSS;
 	if (mode == QLCNIC_ELB_MODE)
@@ -1351,9 +1375,21 @@  int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 			"Failed to Clear Loopback Mode = 0x%x.\n",
 			ahw->port_config);
 		ahw->port_config = config;
+		clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
 		return status;
 	}
 
+	/* Wait until firmware send IDC Completion AEN */
+	do {
+		msleep(300);
+		if (loop++ > QLCNIC_ILB_MAX_RCV_LOOP) {
+			dev_err(&adapter->pdev->dev,
+				"Firmware didn't sent IDC completion AEN\n");
+			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
+			return -EIO;
+		}
+	} while (test_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status));
+
 	qlcnic_sre_macaddr_change(adapter, adapter->mac_addr, 0,
 				  QLCNIC_MAC_DEL);
 	return status;
@@ -1813,9 +1849,9 @@  void qlcnic_83xx_unlock_flash(struct qlcnic_adapter *adapter)
 	QLC_SHARED_REG_WR32(adapter, QLCNIC_FLASH_LOCK_OWNER, 0xFF);
 }
 
-static int qlcnic_83xx_lockless_flash_read32(struct qlcnic_adapter *adapter,
-					     u32 flash_addr, u8 *p_data,
-					     int count)
+int qlcnic_83xx_lockless_flash_read32(struct qlcnic_adapter *adapter,
+				      u32 flash_addr, u8 *p_data,
+				      int count)
 {
 	int i, ret;
 	u32 word, range, flash_offset, addr = flash_addr;
@@ -2142,3 +2178,168 @@  int qlcnic_83xx_flash_bulk_write(struct qlcnic_adapter *adapter, u32 addr,
 
 	return 0;
 }
+
+static void qlcnic_83xx_recover_driver_lock(struct qlcnic_adapter *adapter)
+{
+	u32 val, id;
+
+	val = QLCRDX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK);
+
+	/* Check if recovery need to be performed by the calling function */
+	if ((val & QLC_83XX_DRV_LOCK_RECOVERY_STATUS_MASK) == 0) {
+		val = val & ~0x3F;
+		val = val | ((adapter->portnum << 2) |
+			     QLC_83XX_NEED_DRV_LOCK_RECOVERY);
+		QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, val);
+		dev_info(&adapter->pdev->dev,
+			 "%s: lock recovery initiated\n", __func__);
+		msleep(QLC_83XX_DRV_LOCK_RECOVERY_DELAY);
+		val = QLCRDX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK);
+		id = ((val >> 2) & 0xF);
+		if (id == adapter->portnum) {
+			val = val & ~QLC_83XX_DRV_LOCK_RECOVERY_STATUS_MASK;
+			val = val | QLC_83XX_DRV_LOCK_RECOVERY_IN_PROGRESS;
+			QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, val);
+			/* Force release the lock */
+			QLCRDX(adapter->ahw, QLC_83XX_DRV_UNLOCK);
+			/* Clear recovery bits */
+			val = val & ~0x3F;
+			QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, val);
+			dev_info(&adapter->pdev->dev,
+				 "%s: lock recovery completed\n", __func__);
+		} else {
+			dev_info(&adapter->pdev->dev,
+				 "%s: func %d to resume lock recovery process\n",
+				 __func__, id);
+		}
+	} else {
+		dev_info(&adapter->pdev->dev,
+			 "%s: lock recovery initiated by other functions\n",
+			 __func__);
+	}
+}
+
+int qlcnic_83xx_lock_driver(struct qlcnic_adapter *adapter)
+{
+	u32 lock_alive_counter, val, id, i = 0, status = 0, temp = 0;
+	int max_attempt = 0;
+
+	while (status == 0) {
+		status = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK);
+		if (status)
+			break;
+
+		msleep(QLC_83XX_DRV_LOCK_WAIT_DELAY);
+		i++;
+
+		if (i == 1)
+			temp = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
+
+		if (i == QLC_83XX_DRV_LOCK_WAIT_COUNTER) {
+			val = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
+			if (val == temp) {
+				id = val & 0xFF;
+				dev_info(&adapter->pdev->dev,
+					 "%s: lock to be recovered from %d\n",
+					 __func__, id);
+				qlcnic_83xx_recover_driver_lock(adapter);
+				i = 0;
+				max_attempt++;
+			} else {
+				dev_err(&adapter->pdev->dev,
+					"%s: failed to get lock\n", __func__);
+				return -EIO;
+			}
+		}
+
+		/* Force exit from while loop after few attempts */
+		if (max_attempt == QLC_83XX_MAX_DRV_LOCK_RECOVERY_ATTEMPT) {
+			dev_err(&adapter->pdev->dev,
+				"%s: failed to get lock\n", __func__);
+			return -EIO;
+		}
+	}
+
+	val = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
+	lock_alive_counter = val >> 8;
+	lock_alive_counter++;
+	val = lock_alive_counter << 8 | adapter->portnum;
+	QLCWRX(adapter->ahw, QLC_83XX_DRV_LOCK_ID, val);
+
+	return 0;
+}
+
+void qlcnic_83xx_unlock_driver(struct qlcnic_adapter *adapter)
+{
+	u32 val, lock_alive_counter, id;
+
+	val = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
+	id = val & 0xFF;
+	lock_alive_counter = val >> 8;
+
+	if (id != adapter->portnum)
+		dev_err(&adapter->pdev->dev,
+			"%s:Warning func %d is unlocking lock owned by %d\n",
+			__func__, adapter->portnum, id);
+
+	val = (lock_alive_counter << 8) | 0xFF;
+	QLCWRX(adapter->ahw, QLC_83XX_DRV_LOCK_ID, val);
+	QLCRDX(adapter->ahw, QLC_83XX_DRV_UNLOCK);
+}
+
+int qlcnic_83xx_ms_mem_write128(struct qlcnic_adapter *adapter, u64 addr,
+				u32 *data, u32 count)
+{
+	int i, j, ret = 0;
+	u32 temp;
+
+	/* Check alignment */
+	if (addr & 0xF)
+		return -EIO;
+
+	mutex_lock(&adapter->ahw->mem_lock);
+	qlcnic_83xx_wrt_reg_indirect(adapter, QLCNIC_MS_ADDR_HI, 0);
+
+	for (i = 0; i < count; i++, addr += 16) {
+		if (!((ADDR_IN_RANGE(addr, QLCNIC_ADDR_QDR_NET,
+				     QLCNIC_ADDR_QDR_NET_MAX)) ||
+		      (ADDR_IN_RANGE(addr, QLCNIC_ADDR_DDR_NET,
+				     QLCNIC_ADDR_DDR_NET_MAX)))) {
+			mutex_unlock(&adapter->ahw->mem_lock);
+			return -EIO;
+		}
+
+		qlcnic_83xx_wrt_reg_indirect(adapter, QLCNIC_MS_ADDR_LO, addr);
+		qlcnic_83xx_wrt_reg_indirect(adapter, QLCNIC_MS_WRTDATA_LO,
+					     *data++);
+		qlcnic_83xx_wrt_reg_indirect(adapter, QLCNIC_MS_WRTDATA_HI,
+					     *data++);
+		qlcnic_83xx_wrt_reg_indirect(adapter, QLCNIC_MS_WRTDATA_ULO,
+					     *data++);
+		qlcnic_83xx_wrt_reg_indirect(adapter, QLCNIC_MS_WRTDATA_UHI,
+					     *data++);
+		qlcnic_83xx_wrt_reg_indirect(adapter, QLCNIC_MS_CTRL,
+					     QLCNIC_TA_WRITE_ENABLE);
+		qlcnic_83xx_wrt_reg_indirect(adapter, QLCNIC_MS_CTRL,
+					     QLCNIC_TA_WRITE_START);
+
+		for (j = 0; j < MAX_CTL_CHECK; j++) {
+			temp = qlcnic_83xx_rd_reg_indirect(adapter,
+							   QLCNIC_MS_CTRL);
+			if ((temp & TA_CTL_BUSY) == 0)
+				break;
+		}
+
+		/* Status check failure */
+		if (j >= MAX_CTL_CHECK) {
+			printk_ratelimited(KERN_WARNING
+					   "MS memory write failed\n");
+			mutex_unlock(&adapter->ahw->mem_lock);
+			return -EIO;
+		}
+	}
+
+	mutex_unlock(&adapter->ahw->mem_lock);
+
+	return ret;
+}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index 4519995..99b8427 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -53,6 +53,30 @@ 
 #define QLCNIC_HOST_RDS_MBX_IDX			88
 #define QLCNIC_MAX_RING_SETS			8
 
+/* Pause control registers */
+#define QLC_83XX_SRE_SHIM_REG		0x0D200284
+#define QLC_83XX_PORT0_THRESHOLD	0x0B2003A4
+#define QLC_83XX_PORT1_THRESHOLD	0x0B2013A4
+#define QLC_83XX_PORT0_TC_MC_REG	0x0B200388
+#define QLC_83XX_PORT1_TC_MC_REG	0x0B201388
+#define QLC_83XX_PORT0_TC_STATS		0x0B20039C
+#define QLC_83XX_PORT1_TC_STATS		0x0B20139C
+#define QLC_83XX_PORT2_IFB_THRESHOLD	0x0B200704
+#define QLC_83XX_PORT3_IFB_THRESHOLD	0x0B201704
+
+/* Peg PC status registers */
+#define QLC_83XX_CRB_PEG_NET_0		0x3400003c
+#define QLC_83XX_CRB_PEG_NET_1		0x3410003c
+#define QLC_83XX_CRB_PEG_NET_2		0x3420003c
+#define QLC_83XX_CRB_PEG_NET_3		0x3430003c
+#define QLC_83XX_CRB_PEG_NET_4		0x34b0003c
+
+/* Firmware image definitions */
+#define QLC_83XX_BOOTLOADER_FLASH_ADDR	0x10000
+#define QLC_83XX_FW_FILE_NAME		"83xx_fw.bin"
+#define QLC_83XX_BOOT_FROM_FLASH	0
+#define QLC_83XX_BOOT_FROM_FILE		0x12345678
+
 struct qlcnic_intrpt_config {
 	u8	type;
 	u8	enabled;
@@ -65,6 +89,49 @@  struct qlcnic_macvlan_mbx {
 	u16	vlan;
 };
 
+struct qlc_83xx_fw_info {
+	const struct firmware	*fw;
+	u16	major_fw_version;
+	u8	minor_fw_version;
+	u8	sub_fw_version;
+	u8	fw_build_num;
+	u8	load_from_file;
+};
+
+#define QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY		0x1
+#define QLC_83XX_IDC_GRACEFULL_RESET			0x2
+#define QLC_83XX_IDC_TIMESTAMP				0
+#define QLC_83XX_IDC_DURATION				1
+#define QLC_83XX_IDC_INIT_TIMEOUT_SECS			30
+#define QLC_83XX_IDC_RESET_ACK_TIMEOUT_SECS		10
+#define QLC_83XX_IDC_RESET_TIMEOUT_SECS		10
+#define QLC_83XX_IDC_QUIESCE_ACK_TIMEOUT_SECS		20
+#define QLC_83XX_IDC_FW_POLL_DELAY			(1 * HZ)
+#define QLC_83XX_IDC_FW_FAIL_THRESH			2
+#define QLC_83XX_IDC_MAX_FUNC_PER_PARTITION_INFO	8
+#define QLC_83XX_IDC_MAX_CNA_FUNCTIONS			16
+#define QLC_83XX_IDC_MAJOR_VERSION			1
+#define QLC_83XX_IDC_MINOR_VERSION			0
+#define QLC_83XX_IDC_FLASH_PARAM_ADDR			0x3e8020
+
+/* Mailbox process AEN count */
+#define QLC_83XX_MBX_AEN_CNT 5
+
+struct qlcnic_adapter;
+struct qlc_83xx_idc {
+	int (*state_entry) (struct qlcnic_adapter *);
+	u64		sec_counter;
+	u64		delay;
+	unsigned long	status;
+	int		err_code;
+	int		collect_dump;
+	u8		curr_state;
+	u8		prev_state;
+	u8		vnic_state;
+	u8		vnic_wait_limit;
+	u8		quiesce_req;
+	char		**name;
+};
 
 /* Mailbox process AEN count */
 #define QLC_83XX_IDC_COMP_AEN			3
@@ -303,4 +370,17 @@  int qlcnic_83xx_save_flash_status(struct qlcnic_adapter *);
 int qlcnic_83xx_restore_flash_status(struct qlcnic_adapter *, int);
 int qlcnic_83xx_read_flash_mfg_id(struct qlcnic_adapter *);
 int qlcnic_83xx_read_flash_descriptor_table(struct qlcnic_adapter *);
+int qlcnic_83xx_flash_read32(struct qlcnic_adapter *, u32, u8 *, int);
+int qlcnic_83xx_lockless_flash_read32(struct qlcnic_adapter *,
+				      u32, u8 *, int);
+int qlcnic_83xx_init(struct qlcnic_adapter *);
+int qlcnic_83xx_idc_ready_state_entry(struct qlcnic_adapter *);
+int qlcnic_83xx_check_hw_status(struct qlcnic_adapter *p_dev);
+void qlcnic_83xx_idc_poll_dev_state(struct work_struct *);
+void qlcnic_83xx_idc_exit(struct qlcnic_adapter *);
+void qlcnic_83xx_idc_request_reset(struct qlcnic_adapter *, u32);
+int qlcnic_83xx_lock_driver(struct qlcnic_adapter *);
+void qlcnic_83xx_unlock_driver(struct qlcnic_adapter *);
+int qlcnic_83xx_set_default_offload_settings(struct qlcnic_adapter *);
+int qlcnic_83xx_ms_mem_write128(struct qlcnic_adapter *, u64, u32 *, u32);
 #endif
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
new file mode 100644
index 0000000..c26d190
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -0,0 +1,1513 @@ 
+#include "qlcnic.h"
+#include "qlcnic_hw.h"
+
+static int qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter);
+static int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter);
+static int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *p_dev);
+static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter);
+
+static const char *const qlc_83xx_idc_states[] = {
+	"Unknown",
+	"Cold",
+	"Init",
+	"Ready",
+	"Need Reset",
+	"Need Quiesce",
+	"Failed",
+	"Quiesce"
+};
+
+/* Device States */
+enum qlcnic_83xx_states {
+	QLC_83XX_IDC_DEV_UNKNOWN,
+	QLC_83XX_IDC_DEV_COLD,
+	QLC_83XX_IDC_DEV_INIT,
+	QLC_83XX_IDC_DEV_READY,
+	QLC_83XX_IDC_DEV_NEED_RESET,
+	QLC_83XX_IDC_DEV_NEED_QUISCENT,
+	QLC_83XX_IDC_DEV_FAILED,
+	QLC_83XX_IDC_DEV_QUISCENT
+};
+
+static int
+qlcnic_83xx_idc_check_driver_presence_reg(struct qlcnic_adapter *adapter)
+{
+	u32 val;
+
+	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
+	if ((val & 0xFFFF))
+		return 1;
+	else
+		return 0;
+}
+
+static void qlcnic_83xx_idc_log_state_history(struct qlcnic_adapter *adapter)
+{
+	u32 cur, prev;
+	cur = adapter->ahw->idc.curr_state;
+	prev = adapter->ahw->idc.prev_state;
+
+	dev_info(&adapter->pdev->dev,
+		 "current state  = %s,  prev state = %s\n",
+		 adapter->ahw->idc.name[cur],
+		 adapter->ahw->idc.name[prev]);
+}
+
+static int qlcnic_83xx_idc_update_audit_reg(struct qlcnic_adapter *adapter,
+					    u8 mode, int lock)
+{
+	u32 val;
+	int seconds;
+
+	if (lock) {
+		if (qlcnic_83xx_lock_driver(adapter))
+			return -EBUSY;
+	}
+
+	val = adapter->portnum & 0xf;
+	val |= mode << 7;
+	if (mode)
+		seconds = jiffies / HZ - adapter->ahw->idc.sec_counter;
+	else
+		seconds = jiffies / HZ;
+
+	val |= seconds << 8;
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT, val);
+	adapter->ahw->idc.sec_counter = jiffies / HZ;
+
+	if (lock)
+		qlcnic_83xx_unlock_driver(adapter);
+
+	return 0;
+}
+
+static void qlcnic_83xx_idc_update_minor_version(struct qlcnic_adapter *adapter)
+{
+	u32 val;
+
+	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MIN_VERSION);
+	val = val & ~(0x3 << (adapter->portnum * 2));
+	val = val | (QLC_83XX_IDC_MINOR_VERSION << (adapter->portnum * 2));
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_MIN_VERSION, val);
+}
+
+static int qlcnic_83xx_idc_update_major_version(struct qlcnic_adapter *adapter,
+						int lock)
+{
+	u32 val;
+
+	if (lock) {
+		if (qlcnic_83xx_lock_driver(adapter))
+			return -EBUSY;
+	}
+
+	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION);
+	val = val & ~0xFF;
+	val = val | QLC_83XX_IDC_MAJOR_VERSION;
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION, val);
+
+	if (lock)
+		qlcnic_83xx_unlock_driver(adapter);
+
+	return 0;
+}
+
+static int
+qlcnic_83xx_idc_update_drv_presence_reg(struct qlcnic_adapter *adapter,
+					int status, int lock)
+{
+	u32 val;
+
+	if (lock) {
+		if (qlcnic_83xx_lock_driver(adapter))
+			return -EBUSY;
+	}
+
+	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
+
+	if (status)
+		val = val | (1 << adapter->portnum);
+	else
+		val = val & ~(1 << adapter->portnum);
+
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val);
+	qlcnic_83xx_idc_update_minor_version(adapter);
+
+	if (lock)
+		qlcnic_83xx_unlock_driver(adapter);
+
+	return 0;
+}
+
+static int qlcnic_83xx_idc_check_major_version(struct qlcnic_adapter *adapter)
+{
+	u32 val;
+	u8 version;
+
+	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_MAJ_VERSION);
+	version = val & 0xFF;
+
+	if (version != QLC_83XX_IDC_MAJOR_VERSION) {
+		dev_info(&adapter->pdev->dev,
+			 "%s:mismatch. version 0x%x, expected version 0x%x\n",
+			 __func__, version, QLC_83XX_IDC_MAJOR_VERSION);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int qlcnic_83xx_idc_clear_registers(struct qlcnic_adapter *adapter,
+					   int lock)
+{
+	u32 val;
+
+	if (lock) {
+		if (qlcnic_83xx_lock_driver(adapter))
+			return -EBUSY;
+	}
+
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_ACK, 0);
+	/* Clear gracefull reset bit */
+	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+	val &= ~QLC_83XX_IDC_GRACEFULL_RESET;
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
+
+	if (lock)
+		qlcnic_83xx_unlock_driver(adapter);
+
+	return 0;
+}
+
+static int qlcnic_83xx_idc_update_drv_ack_reg(struct qlcnic_adapter *adapter,
+					      int flag, int lock)
+{
+	u32 val;
+
+	if (lock) {
+		if (qlcnic_83xx_lock_driver(adapter))
+			return -EBUSY;
+	}
+
+	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_ACK);
+	if (flag)
+		val = val | (1 << adapter->portnum);
+	else
+		val = val & ~(1 << adapter->portnum);
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_ACK, val);
+
+	if (lock)
+		qlcnic_83xx_unlock_driver(adapter);
+
+	return 0;
+}
+
+static int qlcnic_83xx_idc_check_timeout(struct qlcnic_adapter *adapter,
+					 int time_limit)
+{
+	u64 seconds;
+
+	seconds = jiffies / HZ - adapter->ahw->idc.sec_counter;
+	if (seconds <= time_limit)
+		return 0;
+	else
+		return -EBUSY;
+}
+
+/**
+ * qlcnic_83xx_idc_check_reset_ack_reg
+ *
+ * @adapter: adapter structure
+ *
+ * Check ACK wait limit and clear the functions which failed to ACK
+ *
+ * Return 0 if all functions have acknowledged the reset request.
+ **/
+static int qlcnic_83xx_idc_check_reset_ack_reg(struct qlcnic_adapter *adapter)
+{
+	int timeout;
+	u32 ack, presence, val;
+
+	timeout = QLC_83XX_IDC_RESET_TIMEOUT_SECS;
+	ack = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_ACK);
+	presence = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
+	dev_info(&adapter->pdev->dev,
+		 "%s: ack = 0x%x, presence = 0x%x\n", __func__, ack, presence);
+	if (!((ack & presence) == presence)) {
+		if (qlcnic_83xx_idc_check_timeout(adapter, timeout)) {
+			/* Clear functions which failed to ACK */
+			dev_info(&adapter->pdev->dev,
+				 "%s: ACK wait exceeds time limit\n", __func__);
+			val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
+			val = val & ~(ack ^ presence);
+			if (qlcnic_83xx_lock_driver(adapter))
+				return -EBUSY;
+			QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val);
+			dev_info(&adapter->pdev->dev,
+				 "%s: updated drv presence reg = 0x%x\n",
+				 __func__, val);
+			qlcnic_83xx_unlock_driver(adapter);
+			return 0;
+
+		} else {
+			return 1;
+		}
+	} else {
+		dev_info(&adapter->pdev->dev,
+			 "%s: Reset ACK received from all functions\n",
+			 __func__);
+		return 0;
+	}
+}
+
+/**
+ * qlcnic_83xx_idc_tx_soft_reset
+ *
+ * @adapter: adapter structure
+ *
+ * Handle context deletion and recreation request from transmit routine
+ *
+ * Returns -EBUSY  or Success (0)
+ *
+ **/
+static int qlcnic_83xx_idc_tx_soft_reset(struct qlcnic_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+
+	if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
+		return -EBUSY;
+
+	netif_device_detach(netdev);
+	qlcnic_down(adapter, netdev);
+	qlcnic_up(adapter, netdev);
+	netif_device_attach(netdev);
+	clear_bit(__QLCNIC_RESETTING, &adapter->state);
+	dev_err(&adapter->pdev->dev, "%s:\n", __func__);
+
+	adapter->netdev->trans_start = jiffies;
+
+	return 0;
+}
+
+/**
+ * qlcnic_83xx_idc_detach_driver
+ *
+ * @adapter: adapter structure
+ * Detach net interface, stop TX and cleanup resources before the HW reset.
+ * Returns: None
+ *
+ **/
+static void qlcnic_83xx_idc_detach_driver(struct qlcnic_adapter *adapter)
+{
+	int i;
+	struct net_device *netdev = adapter->netdev;
+
+	netif_device_detach(netdev);
+	/* Disable mailbox interrupt */
+	QLCWRX(adapter->ahw, QLCNIC_MBX_INTR_ENBL, 0);
+	qlcnic_down(adapter, netdev);
+	for (i = 0; i < adapter->ahw->num_msix; i++) {
+		adapter->ahw->intr_tbl[i].id = i;
+		adapter->ahw->intr_tbl[i].enabled = 0;
+		adapter->ahw->intr_tbl[i].src = 0;
+	}
+}
+
+/**
+ * qlcnic_83xx_idc_attach_driver
+ *
+ * @adapter: adapter structure
+ *
+ * Re-attach and re-enable net interface
+ * Returns: None
+ *
+ **/
+static void qlcnic_83xx_idc_attach_driver(struct qlcnic_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+
+	if (netif_running(netdev)) {
+		if (qlcnic_up(adapter, netdev))
+			goto done;
+		qlcnic_restore_indev_addr(netdev, NETDEV_UP);
+	}
+done:
+	netif_device_attach(netdev);
+	if (netif_running(netdev)) {
+		netif_carrier_on(netdev);
+		netif_wake_queue(netdev);
+	}
+}
+
+static int qlcnic_83xx_idc_enter_failed_state(struct qlcnic_adapter *adapter,
+					      int lock)
+{
+	if (lock) {
+		if (qlcnic_83xx_lock_driver(adapter))
+			return -EBUSY;
+	}
+
+	qlcnic_83xx_idc_clear_registers(adapter, 0);
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_FAILED);
+	if (lock)
+		qlcnic_83xx_unlock_driver(adapter);
+
+	qlcnic_83xx_idc_log_state_history(adapter);
+	dev_info(&adapter->pdev->dev, "Device will enter failed state\n");
+
+	return 0;
+}
+
+static int qlcnic_83xx_idc_enter_init_state(struct qlcnic_adapter *adapter,
+					    int lock)
+{
+	if (lock) {
+		if (qlcnic_83xx_lock_driver(adapter))
+			return -EBUSY;
+	}
+
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_INIT);
+
+	if (lock)
+		qlcnic_83xx_unlock_driver(adapter);
+
+	return 0;
+}
+
+static int qlcnic_83xx_idc_enter_need_quiesce(struct qlcnic_adapter *adapter,
+					      int lock)
+{
+	if (lock) {
+		if (qlcnic_83xx_lock_driver(adapter))
+			return -EBUSY;
+	}
+
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE,
+	       QLC_83XX_IDC_DEV_NEED_QUISCENT);
+
+	if (lock)
+		qlcnic_83xx_unlock_driver(adapter);
+
+	return 0;
+}
+
+static int
+qlcnic_83xx_idc_enter_need_reset_state(struct qlcnic_adapter *adapter, int lock)
+{
+	if (lock) {
+		if (qlcnic_83xx_lock_driver(adapter))
+			return -EBUSY;
+	}
+
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE,
+	       QLC_83XX_IDC_DEV_NEED_RESET);
+
+	if (lock)
+		qlcnic_83xx_unlock_driver(adapter);
+
+	return 0;
+}
+
+static int qlcnic_83xx_idc_enter_ready_state(struct qlcnic_adapter *adapter,
+					     int lock)
+{
+	if (lock) {
+		if (qlcnic_83xx_lock_driver(adapter))
+			return -EBUSY;
+	}
+
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE, QLC_83XX_IDC_DEV_READY);
+	if (lock)
+		qlcnic_83xx_unlock_driver(adapter);
+
+	return 0;
+}
+
+/**
+ * qlcnic_83xx_idc_find_reset_owner_id
+ *
+ * @adapter: adapter structure
+ *
+ * NIC gets precedence over ISCSI and ISCSI has precedence over FCOE.
+ * Within the same class, function with lowest PCI ID assumes ownership
+ *
+ * Returns: reset owner id or failure indication (-EIO)
+ *
+ **/
+static int qlcnic_83xx_idc_find_reset_owner_id(struct qlcnic_adapter *adapter)
+{
+	u32 reg, reg1, reg2, i, j, owner, class;
+
+	reg1 = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_PARTITION_INFO_1);
+	reg2 = QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_PARTITION_INFO_2);
+	owner = QLCNIC_TYPE_NIC;
+	i = 0;
+	j = 0;
+	reg = reg1;
+
+	do {
+		class = (((reg & (0xF << j * 4)) >> j * 4) & 0x3);
+		if (class == owner)
+			break;
+		if (i == (QLC_83XX_IDC_MAX_FUNC_PER_PARTITION_INFO - 1)) {
+			reg = reg2;
+			j = 0;
+		} else {
+			j++;
+		}
+
+		if (i == (QLC_83XX_IDC_MAX_CNA_FUNCTIONS - 1)) {
+			if (owner == QLCNIC_TYPE_NIC)
+				owner = QLCNIC_TYPE_ISCSI;
+			else if (owner == QLCNIC_TYPE_ISCSI)
+				owner = QLCNIC_TYPE_FCOE;
+			else if (owner == QLCNIC_TYPE_FCOE)
+				return -EIO;
+			reg = reg1;
+			j = 0;
+			i = 0;
+		}
+	} while (i++ < QLC_83XX_IDC_MAX_CNA_FUNCTIONS);
+
+	return i;
+}
+
+static int qlcnic_83xx_idc_restart_hw(struct qlcnic_adapter *adapter, int lock)
+{
+	int ret = 0;
+
+	ret = qlcnic_83xx_restart_hw(adapter);
+
+	if (ret) {
+		qlcnic_83xx_idc_enter_failed_state(adapter, lock);
+	} else {
+		qlcnic_83xx_idc_clear_registers(adapter, lock);
+		ret = qlcnic_83xx_idc_enter_ready_state(adapter, lock);
+	}
+
+	return ret;
+}
+
+static int qlcnic_83xx_idc_check_fan_failure(struct qlcnic_adapter *adapter)
+{
+	u32 status;
+
+	status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
+
+	if (status & QLCNIC_RCODE_FATAL_ERROR) {
+		dev_err(&adapter->pdev->dev,
+			"peg halt status1=0x%x\n", status);
+		if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
+			dev_err(&adapter->pdev->dev,
+				"On board active cooling fan failed. "
+				"Device has been halted.\n");
+			dev_err(&adapter->pdev->dev,
+				"Replace the adapter.\n");
+			return -EIO;
+		}
+	}
+
+	return 0;
+}
+
+static int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *adapter)
+{
+	qlcnic_83xx_enable_mbx_intrpt(adapter);
+	if ((adapter->flags & QLCNIC_MSIX_ENABLED)) {
+		if (qlcnic_83xx_config_intrpt(adapter, 1)) {
+			netdev_err(adapter->netdev,
+				   "Failed to enable mbx intr\n");
+			return -EIO;
+		}
+	}
+
+	if (qlcnic_83xx_configure_opmode(adapter)) {
+		qlcnic_83xx_idc_enter_failed_state(adapter, 1);
+		return -EIO;
+	}
+
+	if (adapter->nic_ops->init_driver(adapter)) {
+		qlcnic_83xx_idc_enter_failed_state(adapter, 1);
+		return -EIO;
+	}
+
+	qlcnic_83xx_idc_attach_driver(adapter);
+
+	return 0;
+}
+
+static void qlcnic_83xx_idc_update_idc_params(struct qlcnic_adapter *adapter)
+{
+	qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 1);
+	clear_bit(__QLCNIC_RESETTING, &adapter->state);
+	set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
+	qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
+	set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
+	adapter->ahw->idc.quiesce_req = 0;
+	adapter->ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
+	adapter->ahw->idc.err_code = 0;
+	adapter->ahw->idc.collect_dump = 0;
+}
+
+/**
+ * qlcnic_83xx_idc_ready_state_entry
+ *
+ * @adapter: adapter structure
+ *
+ * Perform ready state initialization, this routine will get invoked only
+ * once from READY state.
+ *
+ * Returns: Error code or Success(0)
+ *
+ **/
+int qlcnic_83xx_idc_ready_state_entry(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+
+	if (ahw->idc.prev_state != QLC_83XX_IDC_DEV_READY) {
+		qlcnic_83xx_idc_update_idc_params(adapter);
+		/* Re-attach the device if required */
+		if ((ahw->idc.prev_state == QLC_83XX_IDC_DEV_NEED_RESET) ||
+		    (ahw->idc.prev_state == QLC_83XX_IDC_DEV_INIT)) {
+			if (qlcnic_83xx_idc_reattach_driver(adapter))
+				return -EIO;
+		}
+	}
+
+	return 0;
+}
+
+static int qlcnic_83xx_idc_unknown_state(struct qlcnic_adapter *adapter)
+{
+	adapter->ahw->idc.err_code = -EIO;
+	dev_err(&adapter->pdev->dev,
+		"%s: Device in unknown state\n", __func__);
+	return 0;
+}
+
+/**
+ * qlcnic_83xx_idc_cold_state
+ *
+ * @adapter: adapter structure
+ *
+ * If HW is up and running device will enter READY state.
+ * If firmware image from host needs to be loaded, device is
+ * forced to start with the file firmware image.
+ *
+ * Returns: Error code or Success(0)
+ *
+ **/
+static int qlcnic_83xx_idc_cold_state_handler(struct qlcnic_adapter *adapter)
+{
+	qlcnic_83xx_idc_update_drv_presence_reg(adapter, 1, 0);
+	qlcnic_83xx_idc_update_audit_reg(adapter, 1, 0);
+
+	if (qlcnic_load_fw_file) {
+		qlcnic_83xx_idc_restart_hw(adapter, 0);
+	} else {
+		if (qlcnic_83xx_check_hw_status(adapter)) {
+			qlcnic_83xx_idc_enter_failed_state(adapter, 0);
+			return -EIO;
+		} else {
+			qlcnic_83xx_idc_enter_ready_state(adapter, 0);
+		}
+	}
+	return 0;
+}
+
+/**
+ * qlcnic_83xx_idc_init_state
+ *
+ * @adapter: adapter structure
+ *
+ * Reset owner will restart the device from this state.
+ * Device will enter failed state if it remains
+ * in this state for more than DEV_INIT time limit.
+ *
+ * Returns: Error code or Success(0)
+ *
+ **/
+static int qlcnic_83xx_idc_init_state(struct qlcnic_adapter *adapter)
+{
+	int timeout, ret = 0;
+	u32 owner;
+
+	timeout = QLC_83XX_IDC_INIT_TIMEOUT_SECS;
+	if (adapter->ahw->idc.prev_state == QLC_83XX_IDC_DEV_NEED_RESET) {
+		owner = qlcnic_83xx_idc_find_reset_owner_id(adapter);
+		if (adapter->ahw->pci_func == owner)
+			ret = qlcnic_83xx_idc_restart_hw(adapter, 1);
+	} else {
+		ret = qlcnic_83xx_idc_check_timeout(adapter, timeout);
+		return ret;
+	}
+
+	return ret;
+}
+
+/**
+ * qlcnic_83xx_idc_ready_state
+ *
+ * @adapter: adapter structure
+ *
+ * Perform IDC protocol specicifed actions after monitoring device state and
+ * events.
+ *
+ * Returns: Error code or Success(0)
+ *
+ **/
+static int qlcnic_83xx_idc_ready_state(struct qlcnic_adapter *adapter)
+{
+	u32 val;
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	int ret = 0;
+
+	/* Perform NIC configuration based ready state entry actions */
+	if (ahw->idc.state_entry(adapter))
+		return -EIO;
+
+	if (qlcnic_check_temp(adapter)) {
+		if (ahw->temp == QLCNIC_TEMP_PANIC) {
+			qlcnic_83xx_idc_check_fan_failure(adapter);
+			dev_err(&adapter->pdev->dev,
+				"Error: device temperature %d above limits\n",
+				adapter->ahw->temp);
+			clear_bit(QLC_83XX_MBX_READY, &ahw->idc.status);
+			set_bit(__QLCNIC_RESETTING, &adapter->state);
+			qlcnic_83xx_idc_detach_driver(adapter);
+			qlcnic_83xx_idc_enter_failed_state(adapter, 1);
+			return -EIO;
+		}
+	}
+
+	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+	ret = qlcnic_83xx_check_heartbeat(adapter);
+	if (ret) {
+		adapter->flags |= QLCNIC_FW_HANG;
+		if (!(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) {
+			clear_bit(QLC_83XX_MBX_READY, &ahw->idc.status);
+			set_bit(__QLCNIC_RESETTING, &adapter->state);
+			qlcnic_83xx_idc_enter_need_reset_state(adapter, 1);
+		}
+		return -EIO;
+	}
+
+	if ((val & QLC_83XX_IDC_GRACEFULL_RESET) || ahw->idc.collect_dump) {
+		/* Move to need reset state and prepare for reset */
+		qlcnic_83xx_idc_enter_need_reset_state(adapter, 1);
+		return ret;
+	}
+
+	/* Check for soft reset request */
+	if (ahw->reset_context &&
+	    !(val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY)) {
+		qlcnic_83xx_idc_tx_soft_reset(adapter);
+		return ret;
+	}
+
+	/* Move to need quiesce state if requested */
+	if (adapter->ahw->idc.quiesce_req) {
+		qlcnic_83xx_idc_enter_need_quiesce(adapter, 1);
+		qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
+		return ret;
+	}
+
+	return ret;
+}
+
+/**
+ * qlcnic_83xx_idc_need_reset_state
+ *
+ * @adapter: adapter structure
+ *
+ * Device will remain in this state until:
+ *	Reset request ACK's are recieved from all the functions
+ *	Wait time exceeds max time limit
+ *
+ * Returns: Error code or Success(0)
+ *
+ **/
+static int qlcnic_83xx_idc_need_reset_state(struct qlcnic_adapter *adapter)
+{
+	int ret = 0;
+
+	if (adapter->ahw->idc.prev_state != QLC_83XX_IDC_DEV_NEED_RESET) {
+		qlcnic_83xx_idc_update_drv_ack_reg(adapter, 1, 1);
+		qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
+		set_bit(__QLCNIC_RESETTING, &adapter->state);
+		clear_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
+		qlcnic_83xx_idc_detach_driver(adapter);
+	}
+
+	/* Check ACK from other functions */
+	ret = qlcnic_83xx_idc_check_reset_ack_reg(adapter);
+	if (ret) {
+		dev_info(&adapter->pdev->dev,
+			 "%s: Waiting for reset ACK\n", __func__);
+		return 0;
+	}
+
+	/* Transit to INIT state and restart the HW */
+	qlcnic_83xx_idc_enter_init_state(adapter, 1);
+
+	return ret;
+}
+
+static int qlcnic_83xx_idc_need_quiesce_state(struct qlcnic_adapter *adapter)
+{
+	dev_err(&adapter->pdev->dev, "%s: TBD\n", __func__);
+	return 0;
+}
+
+static int qlcnic_83xx_idc_failed_state(struct qlcnic_adapter *adapter)
+{
+	dev_err(&adapter->pdev->dev, "%s: please restart!!\n", __func__);
+	adapter->ahw->idc.err_code = -EIO;
+
+	return 0;
+}
+
+static int qlcnic_83xx_idc_quiesce_state(struct qlcnic_adapter *adapter)
+{
+	dev_info(&adapter->pdev->dev, "%s: TBD\n", __func__);
+	return 0;
+}
+
+static int qlcnic_83xx_idc_check_state_validity(struct qlcnic_adapter *adapter,
+						u32 state)
+{
+	u32 cur, prev, next;
+
+	cur = adapter->ahw->idc.curr_state;
+	prev = adapter->ahw->idc.prev_state;
+	next = state;
+
+	if ((next < QLC_83XX_IDC_DEV_COLD) ||
+	    (next > QLC_83XX_IDC_DEV_QUISCENT)) {
+		dev_err(&adapter->pdev->dev,
+			"%s: curr %d, prev %d, next state %d is  invalid\n",
+			__func__, cur, prev, state);
+		return 1;
+	}
+
+	if ((cur == QLC_83XX_IDC_DEV_UNKNOWN) &&
+	    (prev == QLC_83XX_IDC_DEV_UNKNOWN)) {
+		if ((next != QLC_83XX_IDC_DEV_COLD) &&
+		    (next != QLC_83XX_IDC_DEV_READY)) {
+			dev_err(&adapter->pdev->dev,
+				"%s: failed, cur %d prev %d next %d\n",
+				__func__, cur, prev, next);
+			return 1;
+		}
+	}
+
+	if (next == QLC_83XX_IDC_DEV_INIT) {
+		if ((prev != QLC_83XX_IDC_DEV_INIT) &&
+		    (prev != QLC_83XX_IDC_DEV_COLD) &&
+		    (prev != QLC_83XX_IDC_DEV_NEED_RESET)) {
+			dev_err(&adapter->pdev->dev,
+				"%s: failed, cur %d prev %d next %d\n",
+				__func__, cur, prev, next);
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static void qlcnic_83xx_periodic_tasks(struct qlcnic_adapter *adapter)
+{
+	if (adapter->fhash.fnum)
+		qlcnic_prune_lb_filters(adapter);
+}
+
+/**
+ * qlcnic_83xx_idc_poll_dev_state
+ *
+ * @work: kernel work queue structure used to schedule the function
+ *
+ * Poll device state periodically and perform state specific
+ * actions defined by Inter Driver Communication (IDC) protocol.
+ *
+ * Returns: None
+ *
+ **/
+void qlcnic_83xx_idc_poll_dev_state(struct work_struct *work)
+{
+	struct qlcnic_adapter *adapter;
+	u32 state;
+
+	adapter = container_of(work, struct qlcnic_adapter, fw_work.work);
+	state =	QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
+
+	if (qlcnic_83xx_idc_check_state_validity(adapter, state)) {
+		qlcnic_83xx_idc_log_state_history(adapter);
+		adapter->ahw->idc.curr_state = QLC_83XX_IDC_DEV_UNKNOWN;
+	} else {
+		adapter->ahw->idc.curr_state = state;
+	}
+
+	switch (adapter->ahw->idc.curr_state) {
+	case QLC_83XX_IDC_DEV_READY:
+		qlcnic_83xx_idc_ready_state(adapter);
+		break;
+	case QLC_83XX_IDC_DEV_NEED_RESET:
+		qlcnic_83xx_idc_need_reset_state(adapter);
+		break;
+	case QLC_83XX_IDC_DEV_NEED_QUISCENT:
+		qlcnic_83xx_idc_need_quiesce_state(adapter);
+		break;
+	case QLC_83XX_IDC_DEV_FAILED:
+		qlcnic_83xx_idc_failed_state(adapter);
+		return;
+	case QLC_83XX_IDC_DEV_INIT:
+		qlcnic_83xx_idc_init_state(adapter);
+		break;
+	case QLC_83XX_IDC_DEV_QUISCENT:
+		qlcnic_83xx_idc_quiesce_state(adapter);
+		break;
+	default:
+		qlcnic_83xx_idc_unknown_state(adapter);
+		return;
+	}
+	adapter->ahw->idc.prev_state = adapter->ahw->idc.curr_state;
+	qlcnic_83xx_periodic_tasks(adapter);
+
+	/* Re-schedule the function */
+	if (test_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status))
+		qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state,
+				     adapter->ahw->idc.delay);
+}
+
+static void qlcnic_83xx_setup_idc_parameters(struct qlcnic_adapter *adapter)
+{
+	u32 idc_params, val;
+
+	if (qlcnic_83xx_lockless_flash_read32(adapter,
+					      QLC_83XX_IDC_FLASH_PARAM_ADDR,
+					      (u8 *)&idc_params, 1)) {
+		dev_info(&adapter->pdev->dev,
+			 "%s:failed to get IDC params from flash\n", __func__);
+		adapter->dev_init_timeo = QLC_83XX_IDC_INIT_TIMEOUT_SECS;
+		adapter->reset_ack_timeo = QLC_83XX_IDC_RESET_TIMEOUT_SECS;
+	} else {
+		adapter->dev_init_timeo = idc_params & 0xFFFF;
+		adapter->reset_ack_timeo = ((idc_params >> 16) & 0xFFFF);
+	}
+
+	adapter->ahw->idc.curr_state = QLC_83XX_IDC_DEV_UNKNOWN;
+	adapter->ahw->idc.prev_state = QLC_83XX_IDC_DEV_UNKNOWN;
+	adapter->ahw->idc.delay = QLC_83XX_IDC_FW_POLL_DELAY;
+	adapter->ahw->idc.err_code = 0;
+	adapter->ahw->idc.collect_dump = 0;
+	adapter->ahw->idc.name = (char **)qlc_83xx_idc_states;
+
+	clear_bit(__QLCNIC_RESETTING, &adapter->state);
+	set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
+	set_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
+
+	/* Check if reset recovery is disabled */
+	if (!qlcnic_auto_fw_reset) {
+		/* Propagate do not reset request to other functions */
+		val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+		val = val | QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY;
+		QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
+	}
+}
+
+static int
+qlcnic_83xx_idc_first_to_load_function_handler(struct qlcnic_adapter *adapter)
+{
+	u32 state, val;
+
+	if (qlcnic_83xx_lock_driver(adapter))
+		return -EIO;
+
+	/* Clear driver lock register */
+	QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, 0);
+	if (qlcnic_83xx_idc_update_major_version(adapter, 0)) {
+		qlcnic_83xx_unlock_driver(adapter);
+		return -EIO;
+	}
+
+	state =	QLCRDX(adapter->ahw, QLC_83XX_IDC_DEV_STATE);
+	if (qlcnic_83xx_idc_check_state_validity(adapter, state)) {
+		qlcnic_83xx_unlock_driver(adapter);
+		return -EIO;
+	}
+
+	if (state != QLC_83XX_IDC_DEV_COLD && qlcnic_load_fw_file) {
+		QLCWRX(adapter->ahw, QLC_83XX_IDC_DEV_STATE,
+		       QLC_83XX_IDC_DEV_COLD);
+		state = QLC_83XX_IDC_DEV_COLD;
+	}
+
+	adapter->ahw->idc.curr_state = state;
+	/* First to load function should cold boot the device */
+	if (state == QLC_83XX_IDC_DEV_COLD)
+		qlcnic_83xx_idc_cold_state_handler(adapter);
+
+	/* Check if reset recovery is enabled */
+	if (qlcnic_auto_fw_reset) {
+		val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+		val = val & ~QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY;
+		QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
+	}
+
+	qlcnic_83xx_unlock_driver(adapter);
+
+	return 0;
+}
+
+static int qlcnic_83xx_idc_init(struct qlcnic_adapter *adapter)
+{
+	qlcnic_83xx_setup_idc_parameters(adapter);
+
+	if (!qlcnic_83xx_idc_check_driver_presence_reg(adapter)) {
+		if (qlcnic_83xx_idc_first_to_load_function_handler(adapter))
+			return -EIO;
+	} else {
+		if (qlcnic_83xx_idc_check_major_version(adapter))
+			return -EIO;
+	}
+
+	qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
+
+	return 0;
+}
+
+void qlcnic_83xx_idc_exit(struct qlcnic_adapter *adapter)
+{
+	int id;
+	u32 val;
+
+	while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
+		usleep_range(10000, 11000);
+
+	id = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
+	id = id & 0xFF;
+
+	if (id == adapter->portnum) {
+		dev_err(&adapter->pdev->dev,
+			"%s: wait for lock recovery.. %d\n", __func__, id);
+		msleep(20);
+		id = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
+		id = id & 0xFF;
+	}
+
+	/* Clear driver presence bit */
+	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
+	val = val & ~(1 << adapter->portnum);
+	QLCWRX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE, val);
+	clear_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status);
+	clear_bit(__QLCNIC_RESETTING, &adapter->state);
+
+	cancel_delayed_work_sync(&adapter->fw_work);
+}
+
+void qlcnic_83xx_idc_request_reset(struct qlcnic_adapter *adapter, u32 key)
+{
+	u32 val;
+
+	if (qlcnic_83xx_lock_driver(adapter)) {
+		dev_err(&adapter->pdev->dev,
+			"%s:failed, please retry\n", __func__);
+		return;
+	}
+
+	val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+	if ((val & QLC_83XX_IDC_DISABLE_FW_RESET_RECOVERY) ||
+	    !qlcnic_auto_fw_reset) {
+		dev_err(&adapter->pdev->dev,
+			"%s:failed, device in non reset mode\n", __func__);
+		qlcnic_83xx_unlock_driver(adapter);
+		return;
+	}
+
+	if (key == QLCNIC_FORCE_FW_RESET) {
+		val = QLCRDX(adapter->ahw, QLC_83XX_IDC_CTRL);
+		val = val | QLC_83XX_IDC_GRACEFULL_RESET;
+		QLCWRX(adapter->ahw, QLC_83XX_IDC_CTRL, val);
+	} else if (key == QLCNIC_FORCE_FW_DUMP_KEY) {
+		adapter->ahw->idc.collect_dump = 1;
+	}
+
+	qlcnic_83xx_unlock_driver(adapter);
+	return;
+}
+
+static int qlcnic_83xx_copy_bootloader(struct qlcnic_adapter *adapter)
+{
+	u8 *p_cache;
+	u32 src, size;
+	u64 dest;
+	int ret = -EIO;
+
+	src = QLC_83XX_BOOTLOADER_FLASH_ADDR;
+	dest = QLCRDX(adapter->ahw, QLCNIC_BOOTLOADER_ADDR);
+	size = QLCRDX(adapter->ahw, QLCNIC_BOOTLOADER_SIZE);
+
+	/* alignment check */
+	if (size & 0xF)
+		size = (size + 16) & ~0xF;
+
+	p_cache = kzalloc(size, GFP_KERNEL);
+
+	if (p_cache == NULL) {
+		dev_err(&adapter->pdev->dev,
+			"Failed to allocate memory for boot loader cache\n");
+		return -ENOMEM;
+	}
+	ret = qlcnic_83xx_lockless_flash_read32(adapter, src, p_cache,
+						size / sizeof(u32));
+	if (ret) {
+		kfree(p_cache);
+		return ret;
+	}
+	/* 16 byte write to MS memory */
+	ret = qlcnic_83xx_ms_mem_write128(adapter, dest, (u32 *)p_cache,
+					  size / 16);
+	if (ret) {
+		kfree(p_cache);
+		return ret;
+	}
+	kfree(p_cache);
+
+	return ret;
+}
+
+static int qlcnic_83xx_copy_fw_file(struct qlcnic_adapter *adapter)
+{
+	u32 dest, *p_cache;
+	u64 addr;
+	u8 data[16];
+	size_t size;
+	int i, ret = -EIO;
+
+	dest = QLCRDX(adapter->ahw, QLCNIC_FW_IMAGE_ADDR);
+	size = (adapter->ahw->fw_info.fw->size & ~0xF);
+	p_cache = (u32 *)adapter->ahw->fw_info.fw->data;
+	addr = (u64)dest;
+
+	ret = qlcnic_83xx_ms_mem_write128(adapter, addr,
+					  (u32 *)p_cache, size / 16);
+	if (ret) {
+		dev_err(&adapter->pdev->dev, "MS memory write failed\n");
+		release_firmware(adapter->ahw->fw_info.fw);
+		adapter->ahw->fw_info.fw = NULL;
+		return -EIO;
+	}
+
+	/* alignment check */
+	if (adapter->ahw->fw_info.fw->size & 0xF) {
+		addr = dest + size;
+		for (i = 0; i < (adapter->ahw->fw_info.fw->size & 0xF); i++)
+			data[i] = adapter->ahw->fw_info.fw->data[size + i];
+		for (; i < 16; i++)
+			data[i] = 0;
+		ret = qlcnic_83xx_ms_mem_write128(adapter, addr,
+						  (u32 *)data, 1);
+		if (ret) {
+			dev_err(&adapter->pdev->dev,
+				"MS memory write failed\n");
+			release_firmware(adapter->ahw->fw_info.fw);
+			adapter->ahw->fw_info.fw = NULL;
+			return -EIO;
+		}
+	}
+	release_firmware(adapter->ahw->fw_info.fw);
+	adapter->ahw->fw_info.fw = NULL;
+
+	return 0;
+}
+
+static void qlcnic_83xx_dump_pause_control_regs(struct qlcnic_adapter *adapter)
+{
+	int i, j;
+	u32 val = 0, val1 = 0, reg = 0;
+
+	val = QLCRD32(adapter, QLC_83XX_SRE_SHIM_REG);
+	dev_info(&adapter->pdev->dev, "SRE-Shim Ctrl:0x%x\n", val);
+
+	for (j = 0; j < 2; j++) {
+		if (j == 0) {
+			dev_info(&adapter->pdev->dev,
+				 "Port 0 RxB Pause Threshold Regs[TC7..TC0]:");
+			reg = QLC_83XX_PORT0_THRESHOLD;
+		} else if (j == 1) {
+			dev_info(&adapter->pdev->dev,
+				 "Port 1 RxB Pause Threshold Regs[TC7..TC0]:");
+			reg = QLC_83XX_PORT1_THRESHOLD;
+		}
+		for (i = 0; i < 8; i++) {
+			val = QLCRD32(adapter, reg + (i * 0x4));
+			dev_info(&adapter->pdev->dev, "0x%x  ", val);
+		}
+		dev_info(&adapter->pdev->dev, "\n");
+	}
+
+	for (j = 0; j < 2; j++) {
+		if (j == 0) {
+			dev_info(&adapter->pdev->dev,
+				 "Port 0 RxB TC Max Cell Registers[4..1]:");
+			reg = QLC_83XX_PORT0_TC_MC_REG;
+		} else if (j == 1) {
+			dev_info(&adapter->pdev->dev,
+				 "Port 1 RxB TC Max Cell Registers[4..1]:");
+			reg = QLC_83XX_PORT1_TC_MC_REG;
+		}
+		for (i = 0; i < 4; i++) {
+			val = QLCRD32(adapter, reg + (i * 0x4));
+			 dev_info(&adapter->pdev->dev, "0x%x  ", val);
+		}
+		dev_info(&adapter->pdev->dev, "\n");
+	}
+
+	for (j = 0; j < 2; j++) {
+		if (j == 0) {
+			dev_info(&adapter->pdev->dev,
+				 "Port 0 RxB Rx TC Stats[TC7..TC0]:");
+			reg = QLC_83XX_PORT0_TC_STATS;
+		} else if (j == 1) {
+			dev_info(&adapter->pdev->dev,
+				 "Port 1 RxB Rx TC Stats[TC7..TC0]:");
+			reg = QLC_83XX_PORT1_TC_STATS;
+		}
+		for (i = 7; i >= 0; i--) {
+			val = QLCRD32(adapter, reg);
+			val &= ~(0x7 << 29);    /* Reset bits 29 to 31 */
+			QLCWR32(adapter, reg, (val | (i << 29)));
+			val = QLCRD32(adapter, reg);
+			dev_info(&adapter->pdev->dev, "0x%x  ", val);
+		}
+		dev_info(&adapter->pdev->dev, "\n");
+	}
+
+	val = QLCRD32(adapter, QLC_83XX_PORT2_IFB_THRESHOLD);
+	val1 = QLCRD32(adapter, QLC_83XX_PORT3_IFB_THRESHOLD);
+	dev_info(&adapter->pdev->dev,
+		 "IFB-Pause Thresholds: Port 2:0x%x, Port 3:0x%x\n",
+		 val, val1);
+}
+
+static void qlcnic_83xx_disable_pause_frames(struct qlcnic_adapter *adapter)
+{
+	u32 reg = 0, i, j;
+
+	if (qlcnic_83xx_lock_driver(adapter)) {
+		dev_err(&adapter->pdev->dev,
+			"%s:failed to acquire driver lock\n", __func__);
+		return;
+	}
+
+	qlcnic_83xx_dump_pause_control_regs(adapter);
+	QLCWR32(adapter, QLC_83XX_SRE_SHIM_REG, 0x0);
+
+	for (j = 0; j < 2; j++) {
+		if (j == 0)
+			reg = QLC_83XX_PORT0_THRESHOLD;
+		else if (j == 1)
+			reg = QLC_83XX_PORT1_THRESHOLD;
+
+		for (i = 0; i < 8; i++)
+			QLCWR32(adapter, reg + (i * 0x4), 0x0);
+	}
+
+	for (j = 0; j < 2; j++) {
+		if (j == 0)
+			reg = QLC_83XX_PORT0_TC_MC_REG;
+		else if (j == 1)
+			reg = QLC_83XX_PORT1_TC_MC_REG;
+
+		for (i = 0; i < 4; i++)
+			QLCWR32(adapter, reg + (i * 0x4), 0x03FF03FF);
+	}
+
+	QLCWR32(adapter, QLC_83XX_PORT2_IFB_THRESHOLD, 0);
+	QLCWR32(adapter, QLC_83XX_PORT3_IFB_THRESHOLD, 0);
+	dev_info(&adapter->pdev->dev,
+		 "Disabled pause frames successfully on all ports\n");
+	qlcnic_83xx_unlock_driver(adapter);
+}
+
+static int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *p_dev)
+{
+	u32 heartbeat, peg_status;
+	int retries, ret = -EIO;
+
+	retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT;
+	p_dev->heartbeat = QLC_SHARED_REG_RD32(p_dev,
+					       QLCNIC_PEG_ALIVE_COUNTER);
+
+	do {
+		msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
+		heartbeat = QLC_SHARED_REG_RD32(p_dev,
+						QLCNIC_PEG_ALIVE_COUNTER);
+		if (heartbeat != p_dev->heartbeat) {
+			ret = QLCNIC_RCODE_SUCCESS;
+			break;
+		}
+	} while (--retries);
+
+	if (ret) {
+		dev_err(&p_dev->pdev->dev, "firmware hang detected\n");
+		qlcnic_83xx_disable_pause_frames(p_dev);
+		peg_status = QLC_SHARED_REG_RD32(p_dev,
+						 QLCNIC_PEG_HALT_STATUS1);
+		dev_info(&p_dev->pdev->dev, "Dumping HW/FW registers\n"
+			 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
+			 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
+			 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
+			 "PEG_NET_4_PC: 0x%x\n", peg_status,
+			 QLC_SHARED_REG_RD32(p_dev, QLCNIC_PEG_HALT_STATUS2),
+			 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_0),
+			 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_1),
+			 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_2),
+			 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_3),
+			 QLCRD32(p_dev, QLC_83XX_CRB_PEG_NET_4));
+
+		if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
+			dev_err(&p_dev->pdev->dev,
+				"Device is being reset err code 0x00006700.\n");
+	}
+
+	return ret;
+}
+
+static int qlcnic_83xx_check_cmd_peg_status(struct qlcnic_adapter *p_dev)
+{
+	int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT;
+	u32 val;
+
+	do {
+		val = QLC_SHARED_REG_RD32(p_dev, QLCNIC_CMDPEG_STATE);
+		if (val == QLC_83XX_CMDPEG_COMPLETE)
+			return 0;
+		msleep(QLCNIC_CMDPEG_CHECK_DELAY);
+	} while (--retries);
+
+	dev_err(&p_dev->pdev->dev, "%s: failed, state = 0x%x\n", __func__, val);
+	return -EIO;
+}
+
+int qlcnic_83xx_check_hw_status(struct qlcnic_adapter *p_dev)
+{
+	int err;
+
+	err = qlcnic_83xx_check_cmd_peg_status(p_dev);
+	if (err)
+		return err;
+
+	err = qlcnic_83xx_check_heartbeat(p_dev);
+	if (err)
+		return err;
+
+	return err;
+}
+
+static int qlcnic_83xx_load_fw_image_from_host(struct qlcnic_adapter *adapter)
+{
+	int err = -EIO;
+
+	if (request_firmware(&adapter->ahw->fw_info.fw,
+			     QLC_83XX_FW_FILE_NAME, &(adapter->pdev->dev))) {
+		dev_err(&adapter->pdev->dev,
+			"No file FW image, loading flash FW image.\n");
+		QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID,
+				    QLC_83XX_BOOT_FROM_FLASH);
+	} else {
+		if (qlcnic_83xx_copy_fw_file(adapter))
+			return err;
+		QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID,
+				    QLC_83XX_BOOT_FROM_FILE);
+	}
+
+	return 0;
+}
+
+static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter)
+{
+	int err = -EIO;
+
+	if (qlcnic_83xx_copy_bootloader(adapter))
+		return err;
+	/* Boot either flash image or firmware image from host file system */
+	if (qlcnic_load_fw_file) {
+		if (qlcnic_83xx_load_fw_image_from_host(adapter))
+			return err;
+	} else {
+		QLC_SHARED_REG_WR32(adapter, QLCNIC_FW_IMG_VALID,
+				    QLC_83XX_BOOT_FROM_FLASH);
+	}
+
+	if (qlcnic_83xx_check_hw_status(adapter))
+		return -EIO;
+
+	return 0;
+}
+
+/**
+* qlcnic_83xx_config_default_opmode
+*
+* @adapter: adapter structure
+*
+* Configure default driver operating mode
+*
+* Returns: Error code or Success(0)
+* */
+int qlcnic_83xx_config_default_opmode(struct qlcnic_adapter *adapter)
+{
+	u32 op_mode;
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+
+	qlcnic_get_func_no(adapter);
+	op_mode = QLCRDX(ahw, QLC_83XX_DRV_OP_MODE);
+
+	if (op_mode == QLC_83XX_DEFAULT_OPMODE) {
+		adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
+		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
+	} else {
+		return -EIO;
+	}
+
+	return 0;
+}
+
+int qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter *adapter)
+{
+	int err;
+	struct qlcnic_info nic_info;
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+
+	memset(&nic_info, 0, sizeof(struct qlcnic_info));
+	err = qlcnic_get_nic_info(adapter, &nic_info, ahw->pci_func);
+	if (err)
+		return -EIO;
+
+	ahw->physical_port = (u8) nic_info.phys_port;
+	ahw->switch_mode = nic_info.switch_mode;
+	ahw->max_tx_ques = nic_info.max_tx_ques;
+	ahw->max_rx_ques = nic_info.max_rx_ques;
+	ahw->capabilities = nic_info.capabilities;
+	ahw->max_mac_filters = nic_info.max_mac_filters;
+	ahw->max_mtu = nic_info.max_mtu;
+
+	if (ahw->capabilities & BIT_23)
+		ahw->nic_mode = QLC_83XX_VIRTUAL_NIC_MODE;
+	else
+		ahw->nic_mode = QLC_83XX_DEFAULT_MODE;
+
+	return ahw->nic_mode;
+}
+
+static int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
+{
+	int ret;
+
+	ret = qlcnic_83xx_get_nic_configuration(adapter);
+	if (ret == -EIO)
+		return -EIO;
+
+	if (ret == QLC_83XX_DEFAULT_MODE) {
+		if (qlcnic_83xx_config_default_opmode(adapter))
+			return -EIO;
+	}
+
+	return 0;
+}
+
+static void qlcnic_83xx_config_buff_descriptors(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+
+	if (ahw->port_type == QLCNIC_XGBE) {
+		adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
+		adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
+		adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
+		adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
+
+	} else if (ahw->port_type == QLCNIC_GBE) {
+		adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
+		adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
+		adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
+		adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
+	}
+	adapter->num_txd = MAX_CMD_DESCRIPTORS;
+	adapter->max_rds_rings = MAX_RDS_RINGS;
+}
+
+static int qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter)
+{
+	int err = -EIO;
+
+	if (qlcnic_83xx_get_port_info(adapter))
+		return err;
+
+	qlcnic_83xx_config_buff_descriptors(adapter);
+	adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
+	adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
+
+	dev_info(&adapter->pdev->dev, "HAL Version: %d\n",
+		 adapter->ahw->fw_hal_version);
+
+	return 0;
+}
+
+#define IS_QLC_83XX_USED(a, b, c) (((1 << a->portnum) & b) || ((c >> 6) & 0x1))
+static void qlcnic_83xx_clear_function_resources(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_cmd_args cmd;
+	u32 presence_mask, audit_mask;
+	int status;
+
+	presence_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_PRESENCE);
+	audit_mask = QLCRDX(adapter->ahw, QLC_83XX_IDC_DRV_AUDIT);
+
+	if (IS_QLC_83XX_USED(adapter, presence_mask, audit_mask)) {
+		qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_STOP_NIC_FUNC);
+		cmd.req.arg[1] = BIT_31;
+		status = qlcnic_issue_cmd(adapter, &cmd);
+		if (status)
+			dev_err(&adapter->pdev->dev,
+				"Failed to clean up the function resources\n");
+		qlcnic_free_mbx_args(&cmd);
+	}
+}
+
+int qlcnic_83xx_init(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+
+	if (qlcnic_83xx_check_hw_status(adapter))
+		return -EIO;
+
+	/* Initilaize 83xx mailbox spinlock */
+	spin_lock_init(&ahw->mbx_lock);
+
+	set_bit(QLC_83XX_MBX_READY, &adapter->ahw->idc.status);
+	qlcnic_83xx_clear_function_resources(adapter);
+
+	if (!qlcnic_83xx_read_flash_descriptor_table(adapter))
+		qlcnic_83xx_read_flash_mfg_id(adapter);
+
+	if (qlcnic_83xx_idc_init(adapter))
+		return -EIO;
+
+	/* Configure default, SR-IOV or Virtual NIC mode of operation */
+	if (qlcnic_83xx_configure_opmode(adapter))
+		return -EIO;
+
+	/* Perform operating mode specific initialization */
+	if (adapter->nic_ops->init_driver(adapter))
+		return -EIO;
+
+	INIT_DELAYED_WORK(&adapter->idc_aen_work, qlcnic_83xx_idc_aen_work);
+
+	/* register for NIC IDC AEN Events */
+	qlcnic_83xx_register_nic_idc_func(adapter, 1);
+
+	/* Periodically monitor device status */
+	qlcnic_83xx_idc_poll_dev_state(&adapter->fw_work.work);
+
+	return adapter->ahw->idc.err_code;
+}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 4a05dc0..c10670f 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -39,23 +39,23 @@  static int qlcnic_mac_learn;
 module_param(qlcnic_mac_learn, int, 0444);
 MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)");
 
-static int qlcnic_use_msi = 1;
+int qlcnic_use_msi = 1;
 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
 
-static int qlcnic_use_msi_x = 1;
+int qlcnic_use_msi_x = 1;
 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
 
-static int qlcnic_auto_fw_reset = 1;
+int qlcnic_auto_fw_reset = 1;
 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
 
-static int qlcnic_load_fw_file;
+int qlcnic_load_fw_file;
 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
 
-static int qlcnic_config_npars;
+int qlcnic_config_npars;
 module_param(qlcnic_config_npars, int, 0444);
 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
 
@@ -1294,9 +1294,7 @@  int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
 	return 0;
 }
 
-/* Usage: During resume and firmware recovery module.*/
-
-static int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
+int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
 {
 	int err = 0;
 
@@ -1340,8 +1338,7 @@  void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
 
 /* Usage: During suspend and firmware recovery module */
 
-static void
-qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
+void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
 {
 	rtnl_lock();
 	if (netif_running(netdev))
@@ -1812,6 +1809,11 @@  qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	} else if (qlcnic_83xx_check(adapter)) {
 		qlcnic_83xx_check_vf(adapter, ent);
 		adapter->portnum = adapter->ahw->pci_func;
+		err = qlcnic_83xx_init(adapter);
+		if (err) {
+			dev_err(&pdev->dev, "%s: failed\n", __func__);
+			goto err_out_free_hw;
+		}
 	} else {
 		dev_err(&pdev->dev,
 			"%s: failed. Please Reboot\n", __func__);
@@ -2135,7 +2137,7 @@  static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
 	adapter->fhash.fmax = 0;
 }
 
-static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
+int qlcnic_check_temp(struct qlcnic_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
 	u32 temp_state, temp_val, temp = 0;