[SCSI] be2iscsi: add 10Gbps iSCSI - BladeEngine 2 driver

[v2: fixed up virt_to_bus() issue spotted by sfr]
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

11 files changed, 7116 insertions, 0 deletions

diff --git a/drivers/scsi/be2iscsi/Kconfig b/drivers/scsi/be2iscsi/Kconfig
new file mode 100644
index 0000000..2952fcd
--- /dev/null
+++ b/drivers/scsi/be2iscsi/Kconfig
@@ -0,0 +1,8 @@
+config BE2ISCSI
+	tristate "ServerEngines' 10Gbps iSCSI - BladeEngine 2"
+	depends on PCI && SCSI
+	select SCSI_ISCSI_ATTRS
+
+	help
+	This driver implements the iSCSI functionality for ServerEngines'
+	10Gbps Storage adapter - BladeEngine 2.
diff --git a/drivers/scsi/be2iscsi/Makefile b/drivers/scsi/be2iscsi/Makefile
new file mode 100644
index 0000000..c11f443
--- /dev/null
+++ b/drivers/scsi/be2iscsi/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile to build the iSCSI driver for ServerEngine's BladeEngine.
+#
+#
+
+obj-$(CONFIG_BE2ISCSI) += be2iscsi.o
+
+be2iscsi-y := be_iscsi.o be_main.o be_mgmt.o be_cmds.o
diff --git a/drivers/scsi/be2iscsi/be.h b/drivers/scsi/be2iscsi/be.h
new file mode 100644
index 0000000..b36020d
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be.h
@@ -0,0 +1,183 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+
+#ifndef BEISCSI_H
+#define BEISCSI_H
+
+#include <linux/pci.h>
+#include <linux/if_vlan.h>
+
+#define FW_VER_LEN 32
+
+struct be_dma_mem {
+	void *va;
+	dma_addr_t dma;
+	u32 size;
+};
+
+struct be_queue_info {
+	struct be_dma_mem dma_mem;
+	u16 len;
+	u16 entry_size;		/* Size of an element in the queue */
+	u16 id;
+	u16 tail, head;
+	bool created;
+	atomic_t used;		/* Number of valid elements in the queue */
+};
+
+static inline u32 MODULO(u16 val, u16 limit)
+{
+	WARN_ON(limit & (limit - 1));
+	return val & (limit - 1);
+}
+
+static inline void index_inc(u16 *index, u16 limit)
+{
+	*index = MODULO((*index + 1), limit);
+}
+
+static inline void *queue_head_node(struct be_queue_info *q)
+{
+	return q->dma_mem.va + q->head * q->entry_size;
+}
+
+static inline void *queue_tail_node(struct be_queue_info *q)
+{
+	return q->dma_mem.va + q->tail * q->entry_size;
+}
+
+static inline void queue_head_inc(struct be_queue_info *q)
+{
+	index_inc(&q->head, q->len);
+}
+
+static inline void queue_tail_inc(struct be_queue_info *q)
+{
+	index_inc(&q->tail, q->len);
+}
+
+/*ISCSI */
+
+struct be_eq_obj {
+	struct be_queue_info q;
+	char desc[32];
+
+	/* Adaptive interrupt coalescing (AIC) info */
+	bool enable_aic;
+	u16 min_eqd;		/* in usecs */
+	u16 max_eqd;		/* in usecs */
+	u16 cur_eqd;		/* in usecs */
+};
+
+struct be_mcc_obj {
+	struct be_queue_info *q;
+	struct be_queue_info *cq;
+};
+
+struct be_ctrl_info {
+	u8 __iomem *csr;
+	u8 __iomem *db;		/* Door Bell */
+	u8 __iomem *pcicfg;	/* PCI config space */
+	struct pci_dev *pdev;
+
+	/* Mbox used for cmd request/response */
+	spinlock_t mbox_lock;	/* For serializing mbox cmds to BE card */
+	struct be_dma_mem mbox_mem;
+	/* Mbox mem is adjusted to align to 16 bytes. The allocated addr
+	 * is stored for freeing purpose */
+	struct be_dma_mem mbox_mem_alloced;
+
+	/* MCC Rings */
+	struct be_mcc_obj mcc_obj;
+	spinlock_t mcc_lock;	/* For serializing mcc cmds to BE card */
+	spinlock_t mcc_cq_lock;
+
+	/* MCC Async callback */
+	void (*async_cb) (void *adapter, bool link_up);
+	void *adapter_ctxt;
+};
+
+#include "be_cmds.h"
+
+#define PAGE_SHIFT_4K 12
+#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
+
+/* Returns number of pages spanned by the data starting at the given addr */
+#define PAGES_4K_SPANNED(_address, size) 				\
+		((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + 	\
+			(size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
+
+/* Byte offset into the page corresponding to given address */
+#define OFFSET_IN_PAGE(addr)						\
+		((size_t)(addr) & (PAGE_SIZE_4K-1))
+
+/* Returns bit offset within a DWORD of a bitfield */
+#define AMAP_BIT_OFFSET(_struct, field)  				\
+		(((size_t)&(((_struct *)0)->field))%32)
+
+/* Returns the bit mask of the field that is NOT shifted into location. */
+static inline u32 amap_mask(u32 bitsize)
+{
+	return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
+}
+
+static inline void amap_set(void *ptr, u32 dw_offset, u32 mask,
+					u32 offset, u32 value)
+{
+	u32 *dw = (u32 *) ptr + dw_offset;
+	*dw &= ~(mask << offset);
+	*dw |= (mask & value) << offset;
+}
+
+#define AMAP_SET_BITS(_struct, field, ptr, val)				\
+		amap_set(ptr,						\
+			offsetof(_struct, field)/32,			\
+			amap_mask(sizeof(((_struct *)0)->field)),	\
+			AMAP_BIT_OFFSET(_struct, field),		\
+			val)
+
+static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
+{
+	u32 *dw = ptr;
+	return mask & (*(dw + dw_offset) >> offset);
+}
+
+#define AMAP_GET_BITS(_struct, field, ptr)				\
+		amap_get(ptr,						\
+			offsetof(_struct, field)/32,			\
+			amap_mask(sizeof(((_struct *)0)->field)),	\
+			AMAP_BIT_OFFSET(_struct, field))
+
+#define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
+#define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
+static inline void swap_dws(void *wrb, int len)
+{
+#ifdef __BIG_ENDIAN
+	u32 *dw = wrb;
+	WARN_ON(len % 4);
+	do {
+		*dw = cpu_to_le32(*dw);
+		dw++;
+		len -= 4;
+	} while (len);
+#endif /* __BIG_ENDIAN */
+}
+
+extern void beiscsi_cq_notify(struct be_ctrl_info *ctrl, u16 qid, bool arm,
+			      u16 num_popped);
+
+#endif /* BEISCSI_H */
diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
new file mode 100644
index 0000000..08007b6
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -0,0 +1,523 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+
+#include "be.h"
+#include "be_mgmt.h"
+#include "be_main.h"
+
+static inline bool be_mcc_compl_is_new(struct be_mcc_compl *compl)
+{
+	if (compl->flags != 0) {
+		compl->flags = le32_to_cpu(compl->flags);
+		WARN_ON((compl->flags & CQE_FLAGS_VALID_MASK) == 0);
+		return true;
+	} else
+		return false;
+}
+
+static inline void be_mcc_compl_use(struct be_mcc_compl *compl)
+{
+	compl->flags = 0;
+}
+
+static int be_mcc_compl_process(struct be_ctrl_info *ctrl,
+				struct be_mcc_compl *compl)
+{
+	u16 compl_status, extd_status;
+
+	be_dws_le_to_cpu(compl, 4);
+
+	compl_status = (compl->status >> CQE_STATUS_COMPL_SHIFT) &
+					CQE_STATUS_COMPL_MASK;
+	if (compl_status != MCC_STATUS_SUCCESS) {
+		extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) &
+						CQE_STATUS_EXTD_MASK;
+		dev_err(&ctrl->pdev->dev,
+			"error in cmd completion: status(compl/extd)=%d/%d\n",
+			compl_status, extd_status);
+		return -1;
+	}
+	return 0;
+}
+
+static inline bool is_link_state_evt(u32 trailer)
+{
+	return (((trailer >> ASYNC_TRAILER_EVENT_CODE_SHIFT) &
+		ASYNC_TRAILER_EVENT_CODE_MASK) == ASYNC_EVENT_CODE_LINK_STATE);
+}
+
+void beiscsi_cq_notify(struct be_ctrl_info *ctrl, u16 qid, bool arm,
+		       u16 num_popped)
+{
+	u32 val = 0;
+	val |= qid & DB_CQ_RING_ID_MASK;
+	if (arm)
+		val |= 1 << DB_CQ_REARM_SHIFT;
+	val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
+	iowrite32(val, ctrl->db + DB_CQ_OFFSET);
+}
+
+static int be_mbox_db_ready_wait(struct be_ctrl_info *ctrl)
+{
+#define long_delay 2000
+	void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET;
+	int cnt = 0, wait = 5;	/* in usecs */
+	u32 ready;
+
+	do {
+		ready = ioread32(db) & MPU_MAILBOX_DB_RDY_MASK;
+		if (ready)
+			break;
+
+		if (cnt > 6000000) {
+			dev_err(&ctrl->pdev->dev, "mbox_db poll timed out\n");
+			return -1;
+		}
+
+		if (cnt > 50) {
+			wait = long_delay;
+			mdelay(long_delay / 1000);
+		} else
+			udelay(wait);
+		cnt += wait;
+	} while (true);
+	return 0;
+}
+
+int be_mbox_notify(struct be_ctrl_info *ctrl)
+{
+	int status;
+	u32 val = 0;
+	void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET;
+	struct be_dma_mem *mbox_mem = &ctrl->mbox_mem;
+	struct be_mcc_mailbox *mbox = mbox_mem->va;
+	struct be_mcc_compl *compl = &mbox->compl;
+
+	val &= ~MPU_MAILBOX_DB_RDY_MASK;
+	val |= MPU_MAILBOX_DB_HI_MASK;
+	val |= (upper_32_bits(mbox_mem->dma) >> 2) << 2;
+	iowrite32(val, db);
+
+	status = be_mbox_db_ready_wait(ctrl);
+	if (status != 0) {
+		SE_DEBUG(DBG_LVL_1, " be_mbox_db_ready_wait failed 1\n");
+		return status;
+	}
+	val = 0;
+	val &= ~MPU_MAILBOX_DB_RDY_MASK;
+	val &= ~MPU_MAILBOX_DB_HI_MASK;
+	val |= (u32) (mbox_mem->dma >> 4) << 2;
+	iowrite32(val, db);
+
+	status = be_mbox_db_ready_wait(ctrl);
+	if (status != 0) {
+		SE_DEBUG(DBG_LVL_1, " be_mbox_db_ready_wait failed 2\n");
+		return status;
+	}
+	if (be_mcc_compl_is_new(compl)) {
+		status = be_mcc_compl_process(ctrl, &mbox->compl);
+		be_mcc_compl_use(compl);
+		if (status) {
+			SE_DEBUG(DBG_LVL_1, "After be_mcc_compl_process \n");
+			return status;
+		}
+	} else {
+		dev_err(&ctrl->pdev->dev, "invalid mailbox completion\n");
+		return -1;
+	}
+	return 0;
+}
+
+void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len,
+				bool embedded, u8 sge_cnt)
+{
+	if (embedded)
+		wrb->embedded |= MCC_WRB_EMBEDDED_MASK;
+	else
+		wrb->embedded |= (sge_cnt & MCC_WRB_SGE_CNT_MASK) <<
+						MCC_WRB_SGE_CNT_SHIFT;
+	wrb->payload_length = payload_len;
+	be_dws_cpu_to_le(wrb, 8);
+}
+
+void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
+			u8 subsystem, u8 opcode, int cmd_len)
+{
+	req_hdr->opcode = opcode;
+	req_hdr->subsystem = subsystem;
+	req_hdr->request_length = cpu_to_le32(cmd_len - sizeof(*req_hdr));
+}
+
+static void be_cmd_page_addrs_prepare(struct phys_addr *pages, u32 max_pages,
+							struct be_dma_mem *mem)
+{
+	int i, buf_pages;
+	u64 dma = (u64) mem->dma;
+
+	buf_pages = min(PAGES_4K_SPANNED(mem->va, mem->size), max_pages);
+	for (i = 0; i < buf_pages; i++) {
+		pages[i].lo = cpu_to_le32(dma & 0xFFFFFFFF);
+		pages[i].hi = cpu_to_le32(upper_32_bits(dma));
+		dma += PAGE_SIZE_4K;
+	}
+}
+
+static u32 eq_delay_to_mult(u32 usec_delay)
+{
+#define MAX_INTR_RATE 651042
+	const u32 round = 10;
+	u32 multiplier;
+
+	if (usec_delay == 0)
+		multiplier = 0;
+	else {
+		u32 interrupt_rate = 1000000 / usec_delay;
+		if (interrupt_rate == 0)
+			multiplier = 1023;
+		else {
+			multiplier = (MAX_INTR_RATE - interrupt_rate) * round;
+			multiplier /= interrupt_rate;
+			multiplier = (multiplier + round / 2) / round;
+			multiplier = min(multiplier, (u32) 1023);
+		}
+	}
+	return multiplier;
+}
+
+struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem)
+{
+	return &((struct be_mcc_mailbox *)(mbox_mem->va))->wrb;
+}
+
+int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
+			  struct be_queue_info *eq, int eq_delay)
+{
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct be_cmd_req_eq_create *req = embedded_payload(wrb);
+	struct be_cmd_resp_eq_create *resp = embedded_payload(wrb);
+	struct be_dma_mem *q_mem = &eq->dma_mem;
+	int status;
+
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+			OPCODE_COMMON_EQ_CREATE, sizeof(*req));
+
+	req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size));
+
+	AMAP_SET_BITS(struct amap_eq_context, func, req->context,
+						PCI_FUNC(ctrl->pdev->devfn));
+	AMAP_SET_BITS(struct amap_eq_context, valid, req->context, 1);
+	AMAP_SET_BITS(struct amap_eq_context, size, req->context, 0);
+	AMAP_SET_BITS(struct amap_eq_context, count, req->context,
+					__ilog2_u32(eq->len / 256));
+	AMAP_SET_BITS(struct amap_eq_context, delaymult, req->context,
+					eq_delay_to_mult(eq_delay));
+	be_dws_cpu_to_le(req->context, sizeof(req->context));
+
+	be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+	status = be_mbox_notify(ctrl);
+	if (!status) {
+		eq->id = le16_to_cpu(resp->eq_id);
+		eq->created = true;
+	}
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
+
+int be_cmd_fw_initialize(struct be_ctrl_info *ctrl)
+{
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	int status;
+	u8 *endian_check;
+
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+
+	endian_check = (u8 *) wrb;
+	*endian_check++ = 0xFF;
+	*endian_check++ = 0x12;
+	*endian_check++ = 0x34;
+	*endian_check++ = 0xFF;
+	*endian_check++ = 0xFF;
+	*endian_check++ = 0x56;
+	*endian_check++ = 0x78;
+	*endian_check++ = 0xFF;
+	be_dws_cpu_to_le(wrb, sizeof(*wrb));
+
+	status = be_mbox_notify(ctrl);
+	if (status)
+		SE_DEBUG(DBG_LVL_1, "be_cmd_fw_initialize Failed \n");
+
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
+
+int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
+			  struct be_queue_info *cq, struct be_queue_info *eq,
+			  bool sol_evts, bool no_delay, int coalesce_wm)
+{
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct be_cmd_req_cq_create *req = embedded_payload(wrb);
+	struct be_cmd_resp_cq_create *resp = embedded_payload(wrb);
+	struct be_dma_mem *q_mem = &cq->dma_mem;
+	void *ctxt = &req->context;
+	int status;
+
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+			OPCODE_COMMON_CQ_CREATE, sizeof(*req));
+
+	if (!q_mem->va)
+		SE_DEBUG(DBG_LVL_1, "uninitialized q_mem->va\n");
+
+	req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size));
+
+	AMAP_SET_BITS(struct amap_cq_context, coalescwm, ctxt, coalesce_wm);
+	AMAP_SET_BITS(struct amap_cq_context, nodelay, ctxt, no_delay);
+	AMAP_SET_BITS(struct amap_cq_context, count, ctxt,
+		      __ilog2_u32(cq->len / 256));
+	AMAP_SET_BITS(struct amap_cq_context, valid, ctxt, 1);
+	AMAP_SET_BITS(struct amap_cq_context, solevent, ctxt, sol_evts);
+	AMAP_SET_BITS(struct amap_cq_context, eventable, ctxt, 1);
+	AMAP_SET_BITS(struct amap_cq_context, eqid, ctxt, eq->id);
+	AMAP_SET_BITS(struct amap_cq_context, armed, ctxt, 1);
+	AMAP_SET_BITS(struct amap_cq_context, func, ctxt,
+		      PCI_FUNC(ctrl->pdev->devfn));
+	be_dws_cpu_to_le(ctxt, sizeof(req->context));
+
+	be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+	status = be_mbox_notify(ctrl);
+	if (!status) {
+		cq->id = le16_to_cpu(resp->cq_id);
+		cq->created = true;
+	} else
+		SE_DEBUG(DBG_LVL_1, "In be_cmd_cq_create, status=ox%08x \n",
+			status);
+	spin_unlock(&ctrl->mbox_lock);
+
+	return status;
+}
+
+static u32 be_encoded_q_len(int q_len)
+{
+	u32 len_encoded = fls(q_len);	/* log2(len) + 1 */
+	if (len_encoded == 16)
+		len_encoded = 0;
+	return len_encoded;
+}
+int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
+			  int queue_type)
+{
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct be_cmd_req_q_destroy *req = embedded_payload(wrb);
+	u8 subsys = 0, opcode = 0;
+	int status;
+
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+	switch (queue_type) {
+	case QTYPE_EQ:
+		subsys = CMD_SUBSYSTEM_COMMON;
+		opcode = OPCODE_COMMON_EQ_DESTROY;
+		break;
+	case QTYPE_CQ:
+		subsys = CMD_SUBSYSTEM_COMMON;
+		opcode = OPCODE_COMMON_CQ_DESTROY;
+		break;
+	case QTYPE_WRBQ:
+		subsys = CMD_SUBSYSTEM_ISCSI;
+		opcode = OPCODE_COMMON_ISCSI_WRBQ_DESTROY;
+		break;
+	case QTYPE_DPDUQ:
+		subsys = CMD_SUBSYSTEM_ISCSI;
+		opcode = OPCODE_COMMON_ISCSI_DEFQ_DESTROY;
+		break;
+	case QTYPE_SGL:
+		subsys = CMD_SUBSYSTEM_ISCSI;
+		opcode = OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES;
+		break;
+	default:
+		spin_unlock(&ctrl->mbox_lock);
+		BUG();
+		return -1;
+	}
+	be_cmd_hdr_prepare(&req->hdr, subsys, opcode, sizeof(*req));
+	if (queue_type != QTYPE_SGL)
+		req->id = cpu_to_le16(q->id);
+
+	status = be_mbox_notify(ctrl);
+
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
+
+int be_cmd_get_mac_addr(struct be_ctrl_info *ctrl, u8 *mac_addr)
+{
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct be_cmd_req_get_mac_addr *req = embedded_payload(wrb);
+	int status;
+
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+			   OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG,
+			   sizeof(*req));
+
+	status = be_mbox_notify(ctrl);
+	if (!status) {
+		struct be_cmd_resp_get_mac_addr *resp = embedded_payload(wrb);
+
+		memcpy(mac_addr, resp->mac_address, ETH_ALEN);
+	}
+
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
+
+int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
+				    struct be_queue_info *cq,
+				    struct be_queue_info *dq, int length,
+				    int entry_size)
+{
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct be_defq_create_req *req = embedded_payload(wrb);
+	struct be_dma_mem *q_mem = &dq->dma_mem;
+	void *ctxt = &req->context;
+	int status;
+
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+			   OPCODE_COMMON_ISCSI_DEFQ_CREATE, sizeof(*req));
+
+	req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
+	AMAP_SET_BITS(struct amap_be_default_pdu_context, rx_pdid, ctxt, 0);
+	AMAP_SET_BITS(struct amap_be_default_pdu_context, rx_pdid_valid, ctxt,
+		      1);
+	AMAP_SET_BITS(struct amap_be_default_pdu_context, pci_func_id, ctxt,
+		      PCI_FUNC(ctrl->pdev->devfn));
+	AMAP_SET_BITS(struct amap_be_default_pdu_context, ring_size, ctxt,
+		      be_encoded_q_len(length / sizeof(struct phys_addr)));
+	AMAP_SET_BITS(struct amap_be_default_pdu_context, default_buffer_size,
+		      ctxt, entry_size);
+	AMAP_SET_BITS(struct amap_be_default_pdu_context, cq_id_recv, ctxt,
+		      cq->id);
+
+	be_dws_cpu_to_le(ctxt, sizeof(req->context));
+
+	be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+	status = be_mbox_notify(ctrl);
+	if (!status) {
+		struct be_defq_create_resp *resp = embedded_payload(wrb);
+
+		dq->id = le16_to_cpu(resp->id);
+		dq->created = true;
+	}
+	spin_unlock(&ctrl->mbox_lock);
+
+	return status;
+}
+
+int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
+		       struct be_queue_info *wrbq)
+{
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct be_wrbq_create_req *req = embedded_payload(wrb);
+	struct be_wrbq_create_resp *resp = embedded_payload(wrb);
+	int status;
+
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+		OPCODE_COMMON_ISCSI_WRBQ_CREATE, sizeof(*req));
+	req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
+	be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+	status = be_mbox_notify(ctrl);
+	if (!status)
+		wrbq->id = le16_to_cpu(resp->cid);
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
+
+int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
+				struct be_dma_mem *q_mem,
+				u32 page_offset, u32 num_pages)
+{
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct be_post_sgl_pages_req *req = embedded_payload(wrb);
+	int status;
+	unsigned int curr_pages;
+	u32 internal_page_offset = 0;
+	u32 temp_num_pages = num_pages;
+
+	if (num_pages == 0xff)
+		num_pages = 1;
+
+	spin_lock(&ctrl->mbox_lock);
+	do {
+		memset(wrb, 0, sizeof(*wrb));
+		be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+		be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+				   OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES,
+				   sizeof(*req));
+		curr_pages = BE_NUMBER_OF_FIELD(struct be_post_sgl_pages_req,
+						pages);
+		req->num_pages = min(num_pages, curr_pages);
+		req->page_offset = page_offset;
+		be_cmd_page_addrs_prepare(req->pages, req->num_pages, q_mem);
+		q_mem->dma = q_mem->dma + (req->num_pages * PAGE_SIZE);
+		internal_page_offset += req->num_pages;
+		page_offset += req->num_pages;
+		num_pages -= req->num_pages;
+
+		if (temp_num_pages == 0xff)
+			req->num_pages = temp_num_pages;
+
+		status = be_mbox_notify(ctrl);
+		if (status) {
+			SE_DEBUG(DBG_LVL_1,
+				 "FW CMD to map iscsi frags failed.\n");
+			goto error;
+		}
+	} while (num_pages > 0);
+error:
+	spin_unlock(&ctrl->mbox_lock);
+	if (status != 0)
+		beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
+	return status;
+}
diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
new file mode 100644
index 0000000..c20d686
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_cmds.h
@@ -0,0 +1,877 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ */
+
+#ifndef BEISCSI_CMDS_H
+#define BEISCSI_CMDS_H
+
+/**
+ * The driver sends configuration and managements command requests to the
+ * firmware in the BE. These requests are communicated to the processor
+ * using Work Request Blocks (WRBs) submitted to the MCC-WRB ring or via one
+ * WRB inside a MAILBOX.
+ * The commands are serviced by the ARM processor in the BladeEngine's MPU.
+ */
+struct be_sge {
+	u32 pa_lo;
+	u32 pa_hi;
+	u32 len;
+};
+
+#define MCC_WRB_SGE_CNT_SHIFT 3	/* bits 3 - 7 of dword 0 */
+#define MCC_WRB_SGE_CNT_MASK 0x1F	/* bits 3 - 7 of dword 0 */
+struct be_mcc_wrb {
+	u32 embedded;		/* dword 0 */
+	u32 payload_length;	/* dword 1 */
+	u32 tag0;		/* dword 2 */
+	u32 tag1;		/* dword 3 */
+	u32 rsvd;		/* dword 4 */
+	union {
+		u8 embedded_payload[236];	/* used by embedded cmds */
+		struct be_sge sgl[19];	/* used by non-embedded cmds */
+	} payload;
+};
+
+#define CQE_FLAGS_VALID_MASK (1 << 31)
+#define CQE_FLAGS_ASYNC_MASK (1 << 30)
+
+/* Completion Status */
+#define MCC_STATUS_SUCCESS 0x0
+
+#define CQE_STATUS_COMPL_MASK 0xFFFF
+#define CQE_STATUS_COMPL_SHIFT 0	/* bits 0 - 15 */
+#define CQE_STATUS_EXTD_MASK 0xFFFF
+#define CQE_STATUS_EXTD_SHIFT 0		/* bits 0 - 15 */
+
+struct be_mcc_compl {
+	u32 status;		/* dword 0 */
+	u32 tag0;		/* dword 1 */
+	u32 tag1;		/* dword 2 */
+	u32 flags;		/* dword 3 */
+};
+
+/********* Mailbox door bell *************/
+/**
+ * Used for driver communication with the FW.
+ * The software must write this register twice to post any command. First,
+ * it writes the register with hi=1 and the upper bits of the physical address
+ * for the MAILBOX structure. Software must poll the ready bit until this
+ * is acknowledged. Then, sotware writes the register with hi=0 with the lower
+ * bits in the address. It must poll the ready bit until the command is
+ * complete. Upon completion, the MAILBOX will contain a valid completion
+ * queue entry.
+ */
+#define MPU_MAILBOX_DB_OFFSET	0x160
+#define MPU_MAILBOX_DB_RDY_MASK	0x1	/* bit 0 */
+#define MPU_MAILBOX_DB_HI_MASK	0x2	/* bit 1 */
+
+/********** MPU semphore ******************/
+#define MPU_EP_SEMAPHORE_OFFSET 0xac
+#define EP_SEMAPHORE_POST_STAGE_MASK 0x0000FFFF
+#define EP_SEMAPHORE_POST_ERR_MASK 0x1
+#define EP_SEMAPHORE_POST_ERR_SHIFT 31
+
+/********** MCC door bell ************/
+#define DB_MCCQ_OFFSET 0x140
+#define DB_MCCQ_RING_ID_MASK 0x7FF		/* bits 0 - 10 */
+/* Number of entries posted */
+#define DB_MCCQ_NUM_POSTED_SHIFT 16		/* bits 16 - 29 */
+
+/* MPU semphore POST stage values */
+#define POST_STAGE_ARMFW_RDY		0xc000	/* FW is done with POST */
+
+/**
+ * When the async bit of mcc_compl is set, the last 4 bytes of
+ * mcc_compl is interpreted as follows:
+ */
+#define ASYNC_TRAILER_EVENT_CODE_SHIFT	8	/* bits 8 - 15 */
+#define ASYNC_TRAILER_EVENT_CODE_MASK	0xFF
+#define ASYNC_EVENT_CODE_LINK_STATE	0x1
+struct be_async_event_trailer {
+	u32 code;
+};
+
+enum {
+	ASYNC_EVENT_LINK_DOWN = 0x0,
+	ASYNC_EVENT_LINK_UP = 0x1
+};
+
+/**
+ * When the event code of an async trailer is link-state, the mcc_compl
+ * must be interpreted as follows
+ */
+struct be_async_event_link_state {
+	u8 physical_port;
+	u8 port_link_status;
+	u8 port_duplex;
+	u8 port_speed;
+	u8 port_fault;
+	u8 rsvd0[7];
+	struct be_async_event_trailer trailer;
+} __packed;
+
+struct be_mcc_mailbox {
+	struct be_mcc_wrb wrb;
+	struct be_mcc_compl compl;
+};
+
+/* Type of subsystems supported by FW */
+#define CMD_SUBSYSTEM_COMMON    0x1
+#define CMD_SUBSYSTEM_ISCSI     0x2
+#define CMD_SUBSYSTEM_ETH       0x3
+#define CMD_SUBSYSTEM_ISCSI_INI 0x6
+#define CMD_COMMON_TCP_UPLOAD   0x1
+
+/**
+ * List of common opcodes subsystem  CMD_SUBSYSTEM_COMMON
+ * These opcodes are unique for each subsystem defined above
+ */
+#define OPCODE_COMMON_CQ_CREATE				12
+#define OPCODE_COMMON_EQ_CREATE				13
+#define OPCODE_COMMON_MCC_CREATE        		21
+#define OPCODE_COMMON_GET_CNTL_ATTRIBUTES               32
+#define OPCODE_COMMON_GET_FW_VERSION			35
+#define OPCODE_COMMON_MODIFY_EQ_DELAY			41
+#define OPCODE_COMMON_FIRMWARE_CONFIG			42
+#define OPCODE_COMMON_MCC_DESTROY        		53
+#define OPCODE_COMMON_CQ_DESTROY        		54
+#define OPCODE_COMMON_EQ_DESTROY        		55
+#define OPCODE_COMMON_QUERY_FIRMWARE_CONFIG		58
+#define OPCODE_COMMON_FUNCTION_RESET			61
+
+/**
+ * LIST of opcodes that are common between Initiator and Target
+ * used by CMD_SUBSYSTEM_ISCSI
+ * These opcodes are unique for each subsystem defined above
+ */
+#define OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES		2
+#define OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES        3
+#define OPCODE_COMMON_ISCSI_NTWK_GET_NIC_CONFIG		7
+#define OPCODE_COMMON_ISCSI_SET_FRAGNUM_BITS_FOR_SGL_CRA 61
+#define OPCODE_COMMON_ISCSI_DEFQ_CREATE                 64
+#define OPCODE_COMMON_ISCSI_DEFQ_DESTROY 		65
+#define OPCODE_COMMON_ISCSI_WRBQ_CREATE			66
+#define OPCODE_COMMON_ISCSI_WRBQ_DESTROY 		67
+
+struct be_cmd_req_hdr {
+	u8 opcode;		/* dword 0 */
+	u8 subsystem;		/* dword 0 */
+	u8 port_number;		/* dword 0 */
+	u8 domain;		/* dword 0 */
+	u32 timeout;		/* dword 1 */
+	u32 request_length;	/* dword 2 */
+	u32 rsvd;		/* dword 3 */
+};
+
+struct be_cmd_resp_hdr {
+	u32 info;		/* dword 0 */
+	u32 status;		/* dword 1 */
+	u32 response_length;	/* dword 2 */
+	u32 actual_resp_len;	/* dword 3 */
+};
+
+struct phys_addr {
+	u32 lo;
+	u32 hi;
+};
+
+/**************************
+ * BE Command definitions *
+ **************************/
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte - used to calculate offset/shift/mask of each field
+ */
+struct amap_eq_context {
+	u8 cidx[13];		/* dword 0 */
+	u8 rsvd0[3];		/* dword 0 */
+	u8 epidx[13];		/* dword 0 */
+	u8 valid;		/* dword 0 */
+	u8 rsvd1;		/* dword 0 */
+	u8 size;		/* dword 0 */
+	u8 pidx[13];		/* dword 1 */
+	u8 rsvd2[3];		/* dword 1 */
+	u8 pd[10];		/* dword 1 */
+	u8 count[3];		/* dword 1 */
+	u8 solevent;		/* dword 1 */
+	u8 stalled;		/* dword 1 */
+	u8 armed;		/* dword 1 */
+	u8 rsvd3[4];		/* dword 2 */
+	u8 func[8];		/* dword 2 */
+	u8 rsvd4;		/* dword 2 */
+	u8 delaymult[10];	/* dword 2 */
+	u8 rsvd5[2];		/* dword 2 */
+	u8 phase[2];		/* dword 2 */
+	u8 nodelay;		/* dword 2 */
+	u8 rsvd6[4];		/* dword 2 */
+	u8 rsvd7[32];		/* dword 3 */
+} __packed;
+
+struct be_cmd_req_eq_create {
+	struct be_cmd_req_hdr hdr;	/* dw[4] */
+	u16 num_pages;		/* sword */
+	u16 rsvd0;		/* sword */
+	u8 context[sizeof(struct amap_eq_context) / 8];	/* dw[4] */
+	struct phys_addr pages[8];
+} __packed;
+
+struct be_cmd_resp_eq_create {
+	struct be_cmd_resp_hdr resp_hdr;
+	u16 eq_id;		/* sword */
+	u16 rsvd0;		/* sword */
+} __packed;
+
+struct mac_addr {
+	u16 size_of_struct;
+	u8 addr[ETH_ALEN];
+} __packed;
+
+struct be_cmd_req_mac_query {
+	struct be_cmd_req_hdr hdr;
+	u8 type;
+	u8 permanent;
+	u16 if_id;
+} __packed;
+
+struct be_cmd_resp_mac_query {
+	struct be_cmd_resp_hdr hdr;
+	struct mac_addr mac;
+};
+
+/******************** Create CQ ***************************/
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte - used to calculate offset/shift/mask of each field
+ */
+struct amap_cq_context {
+	u8 cidx[11];		/* dword 0 */
+	u8 rsvd0;		/* dword 0 */
+	u8 coalescwm[2];	/* dword 0 */
+	u8 nodelay;		/* dword 0 */
+	u8 epidx[11];		/* dword 0 */
+	u8 rsvd1;		/* dword 0 */
+	u8 count[2];		/* dword 0 */
+	u8 valid;		/* dword 0 */
+	u8 solevent;		/* dword 0 */
+	u8 eventable;		/* dword 0 */
+	u8 pidx[11];		/* dword 1 */
+	u8 rsvd2;		/* dword 1 */
+	u8 pd[10];		/* dword 1 */
+	u8 eqid[8];		/* dword 1 */
+	u8 stalled;		/* dword 1 */
+	u8 armed;		/* dword 1 */
+	u8 rsvd3[4];		/* dword 2 */
+	u8 func[8];		/* dword 2 */
+	u8 rsvd4[20];		/* dword 2 */
+	u8 rsvd5[32];		/* dword 3 */
+} __packed;
+
+struct be_cmd_req_cq_create {
+	struct be_cmd_req_hdr hdr;
+	u16 num_pages;
+	u16 rsvd0;
+	u8 context[sizeof(struct amap_cq_context) / 8];
+	struct phys_addr pages[4];
+} __packed;
+
+struct be_cmd_resp_cq_create {
+	struct be_cmd_resp_hdr hdr;
+	u16 cq_id;
+	u16 rsvd0;
+} __packed;
+
+/******************** Create MCCQ ***************************/
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte - used to calculate offset/shift/mask of each field
+ */
+struct amap_mcc_context {
+	u8 con_index[14];
+	u8 rsvd0[2];
+	u8 ring_size[4];
+	u8 fetch_wrb;
+	u8 fetch_r2t;
+	u8 cq_id[10];
+	u8 prod_index[14];
+	u8 fid[8];
+	u8 pdid[9];
+	u8 valid;
+	u8 rsvd1[32];
+	u8 rsvd2[32];
+} __packed;
+
+struct be_cmd_req_mcc_create {
+	struct be_cmd_req_hdr hdr;
+	u16 num_pages;
+	u16 rsvd0;
+	u8 context[sizeof(struct amap_mcc_context) / 8];
+	struct phys_addr pages[8];
+} __packed;
+
+struct be_cmd_resp_mcc_create {
+	struct be_cmd_resp_hdr hdr;
+	u16 id;
+	u16 rsvd0;
+} __packed;
+
+/******************** Q Destroy  ***************************/
+/* Type of Queue to be destroyed */
+enum {
+	QTYPE_EQ = 1,
+	QTYPE_CQ,
+	QTYPE_MCCQ,
+	QTYPE_WRBQ,
+	QTYPE_DPDUQ,
+	QTYPE_SGL
+};
+
+struct be_cmd_req_q_destroy {
+	struct be_cmd_req_hdr hdr;
+	u16 id;
+	u16 bypass_flush;	/* valid only for rx q destroy */
+} __packed;
+
+struct macaddr {
+	u8 byte[ETH_ALEN];
+};
+
+struct be_cmd_req_mcast_mac_config {
+	struct be_cmd_req_hdr hdr;
+	u16 num_mac;
+	u8 promiscuous;
+	u8 interface_id;
+	struct macaddr mac[32];
+} __packed;
+
+static inline void *embedded_payload(struct be_mcc_wrb *wrb)
+{
+	return wrb->payload.embedded_payload;
+}
+
+static inline struct be_sge *nonembedded_sgl(struct be_mcc_wrb *wrb)
+{
+	return &wrb->payload.sgl[0];
+}
+
+/******************** Modify EQ Delay *******************/
+struct be_cmd_req_modify_eq_delay {
+	struct be_cmd_req_hdr hdr;
+	u32 num_eq;
+	struct {
+		u32 eq_id;
+		u32 phase;
+		u32 delay_multiplier;
+	} delay[8];
+} __packed;
+
+/******************** Get MAC ADDR *******************/
+
+#define ETH_ALEN	6
+
+
+struct be_cmd_req_get_mac_addr {
+	struct be_cmd_req_hdr hdr;
+	u32 nic_port_count;
+	u32 speed;
+	u32 max_speed;
+	u32 link_state;
+	u32 max_frame_size;
+	u16 size_of_structure;
+	u8 mac_address[ETH_ALEN];
+	u32 rsvd[23];
+};
+
+struct be_cmd_resp_get_mac_addr {
+	struct be_cmd_resp_hdr hdr;
+	u32 nic_port_count;
+	u32 speed;
+	u32 max_speed;
+	u32 link_state;
+	u32 max_frame_size;
+	u16 size_of_structure;
+	u8 mac_address[6];
+	u32 rsvd[23];
+};
+
+int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl,
+			  struct be_queue_info *eq, int eq_delay);
+
+int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl,
+			  struct be_queue_info *cq, struct be_queue_info *eq,
+			  bool sol_evts, bool no_delay,
+			  int num_cqe_dma_coalesce);
+
+int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
+			  int type);
+int be_poll_mcc(struct be_ctrl_info *ctrl);
+unsigned char mgmt_check_supported_fw(struct be_ctrl_info *ctrl);
+int be_cmd_get_mac_addr(struct be_ctrl_info *ctrl, u8 *mac_addr);
+
+/*ISCSI Functuions */
+int be_cmd_fw_initialize(struct be_ctrl_info *ctrl);
+
+struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem);
+
+int be_mbox_notify(struct be_ctrl_info *ctrl);
+
+int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
+				    struct be_queue_info *cq,
+				    struct be_queue_info *dq, int length,
+				    int entry_size);
+
+int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
+				struct be_dma_mem *q_mem, u32 page_offset,
+				u32 num_pages);
+
+int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
+		       struct be_queue_info *wrbq);
+
+struct be_default_pdu_context {
+	u32 dw[4];
+} __packed;
+
+struct amap_be_default_pdu_context {
+	u8 dbuf_cindex[13];	/* dword 0 */
+	u8 rsvd0[3];		/* dword 0 */
+	u8 ring_size[4];	/* dword 0 */
+	u8 ring_state[4];	/* dword 0 */
+	u8 rsvd1[8];		/* dword 0 */
+	u8 dbuf_pindex[13];	/* dword 1 */
+	u8 rsvd2;		/* dword 1 */
+	u8 pci_func_id[8];	/* dword 1 */
+	u8 rx_pdid[9];		/* dword 1 */
+	u8 rx_pdid_valid;	/* dword 1 */
+	u8 default_buffer_size[16];	/* dword 2 */
+	u8 cq_id_recv[10];	/* dword 2 */
+	u8 rx_pdid_not_valid;	/* dword 2 */
+	u8 rsvd3[5];		/* dword 2 */
+	u8 rsvd4[32];		/* dword 3 */
+} __packed;
+
+struct be_defq_create_req {
+	struct be_cmd_req_hdr hdr;
+	u16 num_pages;
+	u8 ulp_num;
+	u8 rsvd0;
+	struct be_default_pdu_context context;
+	struct phys_addr pages[8];
+} __packed;
+
+struct be_defq_create_resp {
+	struct be_cmd_req_hdr hdr;
+	u16 id;
+	u16 rsvd0;
+} __packed;
+
+struct be_post_sgl_pages_req {
+	struct be_cmd_req_hdr hdr;
+	u16 num_pages;
+	u16 page_offset;
+	u32 rsvd0;
+	struct phys_addr pages[26];
+	u32 rsvd1;
+} __packed;
+
+struct be_wrbq_create_req {
+	struct be_cmd_req_hdr hdr;
+	u16 num_pages;
+	u8 ulp_num;
+	u8 rsvd0;
+	struct phys_addr pages[8];
+} __packed;
+
+struct be_wrbq_create_resp {
+	struct be_cmd_resp_hdr resp_hdr;
+	u16 cid;
+	u16 rsvd0;
+} __packed;
+
+#define SOL_CID_MASK		0x0000FFC0
+#define SOL_CODE_MASK		0x0000003F
+#define SOL_WRB_INDEX_MASK	0x00FF0000
+#define SOL_CMD_WND_MASK	0xFF000000
+#define SOL_RES_CNT_MASK	0x7FFFFFFF
+#define SOL_EXP_CMD_SN_MASK	0xFFFFFFFF
+#define SOL_HW_STS_MASK		0x000000FF
+#define SOL_STS_MASK		0x0000FF00
+#define SOL_RESP_MASK		0x00FF0000
+#define SOL_FLAGS_MASK		0x7F000000
+#define SOL_S_MASK		0x80000000
+
+struct sol_cqe {
+	u32 dw[4];
+};
+
+struct amap_sol_cqe {
+	u8 hw_sts[8];		/* dword 0 */
+	u8 i_sts[8];		/* dword 0 */
+	u8 i_resp[8];		/* dword 0 */
+	u8 i_flags[7];		/* dword 0 */
+	u8 s;			/* dword 0 */
+	u8 i_exp_cmd_sn[32];	/* dword 1 */
+	u8 code[6];		/* dword 2 */
+	u8 cid[10];		/* dword 2 */
+	u8 wrb_index[8];	/* dword 2 */
+	u8 i_cmd_wnd[8];	/* dword 2 */
+	u8 i_res_cnt[31];	/* dword 3 */
+	u8 valid;		/* dword 3 */
+} __packed;
+
+
+/**
+ * Post WRB Queue Doorbell Register used by the host Storage
+ * stack to notify the
+ * controller of a posted Work Request Block
+ */
+#define DB_WRB_POST_CID_MASK		0x3FF	/* bits 0 - 9 */
+#define DB_DEF_PDU_WRB_INDEX_MASK	0xFF	/* bits 0 - 9 */
+
+#define DB_DEF_PDU_WRB_INDEX_SHIFT	16
+#define DB_DEF_PDU_NUM_POSTED_SHIFT	24
+
+struct fragnum_bits_for_sgl_cra_in {
+	struct be_cmd_req_hdr hdr;
+	u32 num_bits;
+} __packed;
+
+struct iscsi_cleanup_req {
+	struct be_cmd_req_hdr hdr;
+	u16 chute;
+	u8 hdr_ring_id;
+	u8 data_ring_id;
+
+} __packed;
+
+struct eq_delay {
+	u32 eq_id;
+	u32 phase;
+	u32 delay_multiplier;
+} __packed;
+
+struct be_eq_delay_params_in {
+	struct be_cmd_req_hdr hdr;
+	u32 num_eq;
+	struct eq_delay delay[8];
+} __packed;
+
+struct ip_address_format {
+	u16 size_of_structure;
+	u8 reserved;
+	u8 ip_type;
+	u8 ip_address[16];
+	u32 rsvd0;
+} __packed;
+
+struct tcp_connect_and_offload_in {
+	struct be_cmd_req_hdr hdr;
+	struct ip_address_format ip_address;
+	u16 tcp_port;
+	u16 cid;
+	u16 cq_id;
+	u16 defq_id;
+	struct phys_addr dataout_template_pa;
+	u16 hdr_ring_id;
+	u16 data_ring_id;
+	u8 do_offload;
+	u8 rsvd0[3];
+} __packed;
+
+struct tcp_connect_and_offload_out {
+	struct be_cmd_resp_hdr hdr;
+	u32 connection_handle;
+	u16 cid;
+	u16 rsvd0;
+
+} __packed;
+
+struct be_mcc_wrb_context {
+	struct MCC_WRB *wrb;
+	int *users_final_status;
+} __packed;
+
+#define DB_DEF_PDU_RING_ID_MASK		0x3FF	/* bits 0 - 9 */
+#define DB_DEF_PDU_CQPROC_MASK		0x3FFF	/* bits 0 - 9 */
+#define DB_DEF_PDU_REARM_SHIFT		14
+#define DB_DEF_PDU_EVENT_SHIFT		15
+#define DB_DEF_PDU_CQPROC_SHIFT		16
+
+struct dmsg_cqe {
+	u32 dw[4];
+} __packed;
+
+struct tcp_upload_params_in {
+	struct be_cmd_req_hdr hdr;
+	u16 id;
+	u16 upload_type;
+	u32 reset_seq;
+} __packed;
+
+struct tcp_upload_params_out {
+	u32 dw[32];
+} __packed;
+
+union tcp_upload_params {
+	struct tcp_upload_params_in request;
+	struct tcp_upload_params_out response;
+} __packed;
+
+struct be_ulp_fw_cfg {
+	u32 ulp_mode;
+	u32 etx_base;
+	u32 etx_count;
+	u32 sq_base;
+	u32 sq_count;
+	u32 rq_base;
+	u32 rq_count;
+	u32 dq_base;
+	u32 dq_count;
+	u32 lro_base;
+	u32 lro_count;
+	u32 icd_base;
+	u32 icd_count;
+};
+
+struct be_fw_cfg {
+	struct be_cmd_req_hdr hdr;
+	u32 be_config_number;
+	u32 asic_revision;
+	u32 phys_port;
+	u32 function_mode;
+	struct be_ulp_fw_cfg ulp[2];
+	u32 function_caps;
+} __packed;
+
+#define CMD_ISCSI_COMMAND_INVALIDATE  1
+#define ISCSI_OPCODE_SCSI_DATA_OUT      5
+#define OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD 70
+#define OPCODE_ISCSI_INI_DRIVER_OFFLOAD_SESSION 41
+#define OPCODE_COMMON_MODIFY_EQ_DELAY	41
+#define OPCODE_COMMON_ISCSI_CLEANUP	59
+#define	OPCODE_COMMON_TCP_UPLOAD	56
+#define OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS 1
+/* --- CMD_ISCSI_INVALIDATE_CONNECTION_TYPE --- */
+#define CMD_ISCSI_CONNECTION_INVALIDATE 1
+#define CMD_ISCSI_CONNECTION_ISSUE_TCP_RST 2
+#define OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION 42
+
+#define INI_WR_CMD			1	/* Initiator write command */
+#define INI_TMF_CMD			2	/* Initiator TMF command */
+#define INI_NOPOUT_CMD			3	/* Initiator; Send a NOP-OUT */
+#define INI_RD_CMD			5	/* Initiator requesting to send
+						 * a read command
+						 */
+#define TGT_CTX_UPDT_CMD		7	/* Target context update */
+#define TGT_STS_CMD			8	/* Target R2T and other BHS
+						 * where only the status number
+						 * need to be updated
+						 */
+#define TGT_DATAIN_CMD			9	/* Target Data-Ins in response
+						 * to read command
+						 */
+#define TGT_SOS_PDU			10	/* Target:standalone status
+						 * response
+						 */
+#define TGT_DM_CMD			11	/* Indicates that the bhs
+						 *  preparedby
+						 * driver should not be touched
+						 */
+/* --- CMD_CHUTE_TYPE --- */
+#define CMD_CONNECTION_CHUTE_0		1
+#define CMD_CONNECTION_CHUTE_1		2
+#define CMD_CONNECTION_CHUTE_2		3
+
+#define EQ_MAJOR_CODE_COMPLETION	0
+
+#define CMD_ISCSI_SESSION_DEL_CFG_FROM_FLASH 0
+#define CMD_ISCSI_SESSION_SAVE_CFG_ON_FLASH 1
+
+/* --- CONNECTION_UPLOAD_PARAMS --- */
+/* These parameters are used to define the type of upload desired.  */
+#define CONNECTION_UPLOAD_GRACEFUL      1	/* Graceful upload  */
+#define CONNECTION_UPLOAD_ABORT_RESET   2	/* Abortive upload with
+						 * reset
+						 */
+#define CONNECTION_UPLOAD_ABORT		3	/* Abortive upload without
+						 * reset
+						 */
+#define CONNECTION_UPLOAD_ABORT_WITH_SEQ 4	/* Abortive upload with reset,
+						 * sequence number by driver  */
+
+/* Returns byte size of given field with a structure. */
+
+/* Returns the number of items in the field array. */
+#define BE_NUMBER_OF_FIELD(_type_, _field_)	\
+	(FIELD_SIZEOF(_type_, _field_)/sizeof((((_type_ *)0)->_field_[0])))\
+
+/**
+ * Different types of iSCSI completions to host driver for both initiator
+ * and taget mode
+ * of operation.
+ */
+#define SOL_CMD_COMPLETE		1	/* Solicited command completed
+						 * normally
+						 */
+#define SOL_CMD_KILLED_DATA_DIGEST_ERR  2	/* Solicited command got
+						 * invalidated internally due
+						 * to Data Digest error
+						 */
+#define CXN_KILLED_PDU_SIZE_EXCEEDS_DSL 3	/* Connection got invalidated
+						 * internally
+						 * due to a recieved PDU
+						 * size > DSL
+						 */
+#define CXN_KILLED_BURST_LEN_MISMATCH   4	/* Connection got invalidated
+						 * internally due ti received
+						 * PDU sequence size >
+						 * FBL/MBL.
+						 */
+#define CXN_KILLED_AHS_RCVD		5	/* Connection got invalidated
+						 * internally due to a recieved
+						 * PDU Hdr that has
+						 * AHS */
+#define CXN_KILLED_HDR_DIGEST_ERR	6	/* Connection got invalidated
+						 * internally due to Hdr Digest
+						 * error
+						 */
+#define CXN_KILLED_UNKNOWN_HDR		7	/* Connection got invalidated
+						 *  internally
+						 * due to a bad opcode in the
+						 * pdu hdr
+						 */
+#define CXN_KILLED_STALE_ITT_TTT_RCVD	8	/* Connection got invalidated
+						 * internally due to a recieved
+						 * ITT/TTT that does not belong
+						 * to this Connection
+						 */
+#define CXN_KILLED_INVALID_ITT_TTT_RCVD 9	/* Connection got invalidated
+						 * internally due to recieved
+						 * ITT/TTT value > Max
+						 * Supported ITTs/TTTs
+						 */
+#define CXN_KILLED_RST_RCVD		10	/* Connection got invalidated
+						 * internally due to an
+						 * incoming TCP RST
+						 */
+#define CXN_KILLED_TIMED_OUT		11	/* Connection got invalidated
+						 * internally due to timeout on
+						 * tcp segment 12 retransmit
+						 * attempts failed
+						 */
+#define CXN_KILLED_RST_SENT		12	/* Connection got invalidated
+						 * internally due to TCP RST
+						 * sent by the Tx side
+						 */
+#define CXN_KILLED_FIN_RCVD		13	/* Connection got invalidated
+						 * internally due to an
+						 * incoming TCP FIN.
+						 */
+#define CXN_KILLED_BAD_UNSOL_PDU_RCVD	14	/* Connection got invalidated
+						 * internally due to bad
+						 * unsolicited PDU Unsolicited
+						 * PDUs are PDUs with
+						 * ITT=0xffffffff
+						 */
+#define CXN_KILLED_BAD_WRB_INDEX_ERROR	15	/* Connection got invalidated
+						 * internally due to bad WRB
+						 * index.
+						 */
+#define CXN_KILLED_OVER_RUN_RESIDUAL	16	/* Command got invalidated
+						 * internally due to recived
+						 * command has residual
+						 * over run bytes.
+						 */
+#define CXN_KILLED_UNDER_RUN_RESIDUAL	17	/* Command got invalidated
+						 * internally due to recived
+						 * command has residual under
+						 * run bytes.
+						 */
+#define CMD_KILLED_INVALID_STATSN_RCVD	18	/* Command got invalidated
+						 * internally due to a recieved
+						 * PDU has an invalid StatusSN
+						 */
+#define CMD_KILLED_INVALID_R2T_RCVD	19	/* Command got invalidated
+						 * internally due to a recieved
+						 * an R2T with some invalid
+						 * fields in it
+						 */
+#define CMD_CXN_KILLED_LUN_INVALID	20	/* Command got invalidated
+						 * internally due to received
+						 * PDU has an invalid LUN.
+						 */
+#define CMD_CXN_KILLED_ICD_INVALID	21	/* Command got invalidated
+						 * internally due to the
+						 * corresponding ICD not in a
+						 * valid state
+						 */
+#define CMD_CXN_KILLED_ITT_INVALID	22	/* Command got invalidated due
+						 *  to received PDU has an
+						 *  invalid ITT.
+						 */
+#define CMD_CXN_KILLED_SEQ_OUTOFORDER	23	/* Command got invalidated due
+						 * to received sequence buffer
+						 * offset is out of order.
+						 */
+#define CMD_CXN_KILLED_INVALID_DATASN_RCVD 24	/* Command got invalidated
+						 * internally due to a
+						 * recieved PDU has an invalid
+						 * DataSN
+						 */
+#define CXN_INVALIDATE_NOTIFY		25	/* Connection invalidation
+						 * completion notify.
+						 */
+#define CXN_INVALIDATE_INDEX_NOTIFY	26	/* Connection invalidation
+						 * completion
+						 * with data PDU index.
+						 */
+#define CMD_INVALIDATED_NOTIFY		27	/* Command invalidation
+						 * completionnotifify.
+						 */
+#define UNSOL_HDR_NOTIFY		28	/* Unsolicited header notify.*/
+#define UNSOL_DATA_NOTIFY		29	/* Unsolicited data notify.*/
+#define UNSOL_DATA_DIGEST_ERROR_NOTIFY 	30	/* Unsolicited data digest
+						 * error notify.
+						 */
+#define DRIVERMSG_NOTIFY		31	/* TCP acknowledge based
+						 * notification.
+						 */
+#define CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN 32 /* Connection got invalidated
+						  * internally due to command
+						  * and data are not on same
+						  * connection.
+						  */
+#define SOL_CMD_KILLED_DIF_ERR		33	/* Solicited command got
+						 *  invalidated internally due
+						 *  to DIF error
+						 */
+#define CXN_KILLED_SYN_RCVD		34	/* Connection got invalidated
+						 * internally due to incoming
+						 * TCP SYN
+						 */
+#define CXN_KILLED_IMM_DATA_RCVD	35	/* Connection got invalidated
+						 * internally due to an
+						 * incoming Unsolicited PDU
+						 * that has immediate data on
+						 * the cxn
+						 */
+
+void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len,
+			bool embedded, u8 sge_cnt);
+
+void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
+			u8 subsystem, u8 opcode, int cmd_len);
+
+#endif /* !BEISCSI_CMDS_H */
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
new file mode 100644
index 0000000..b23526c
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -0,0 +1,646 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Written by: Jayamohan Kallickal (jayamohank@serverengines.com)
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+
+#include <scsi/libiscsi.h>
+#include <scsi/scsi_transport_iscsi.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi.h>
+
+#include "be_iscsi.h"
+
+extern struct iscsi_transport beiscsi_iscsi_transport;
+
+/**
+ * beiscsi_session_create - creates a new iscsi session
+ * @cmds_max: max commands supported
+ * @qdepth: max queue depth supported
+ * @initial_cmdsn: initial iscsi CMDSN
+ */
+struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
+						 u16 cmds_max,
+						 u16 qdepth,
+						 u32 initial_cmdsn)
+{
+	struct Scsi_Host *shost;
+	struct beiscsi_endpoint *beiscsi_ep;
+	struct iscsi_cls_session *cls_session;
+	struct iscsi_session *sess;
+	struct beiscsi_hba *phba;
+	struct iscsi_task *task;
+	struct beiscsi_io_task *io_task;
+	unsigned int max_size, num_cmd;
+	dma_addr_t bus_add;
+	u64 pa_addr;
+	void *vaddr;
+
+	SE_DEBUG(DBG_LVL_8, "In beiscsi_session_create\n");
+
+	if (!ep) {
+		SE_DEBUG(DBG_LVL_1, "beiscsi_session_create: invalid ep \n");
+		return NULL;
+	}
+	beiscsi_ep = ep->dd_data;
+	phba = beiscsi_ep->phba;
+	shost = phba->shost;
+	if (cmds_max > beiscsi_ep->phba->params.wrbs_per_cxn) {
+		shost_printk(KERN_ERR, shost, "Cannot handle %d cmds."
+			     "Max cmds per session supported is %d. Using %d. "
+			     "\n", cmds_max,
+			      beiscsi_ep->phba->params.wrbs_per_cxn,
+			      beiscsi_ep->phba->params.wrbs_per_cxn);
+		cmds_max = beiscsi_ep->phba->params.wrbs_per_cxn;
+	}
+
+	 cls_session = iscsi_session_setup(&beiscsi_iscsi_transport,
+					   shost, cmds_max,
+					   sizeof(struct beiscsi_io_task),
+					   initial_cmdsn, ISCSI_MAX_TARGET);
+	if (!cls_session)
+		return NULL;
+	sess = cls_session->dd_data;
+	max_size = ALIGN(sizeof(struct be_cmd_bhs), 64) * sess->cmds_max;
+	vaddr = pci_alloc_consistent(phba->pcidev, max_size, &bus_add);
+	pa_addr = (__u64) bus_add;
+
+	for (num_cmd = 0; num_cmd < sess->cmds_max; num_cmd++) {
+		task = sess->cmds[num_cmd];
+		io_task = task->dd_data;
+		io_task->cmd_bhs = vaddr;
+		io_task->bhs_pa.u.a64.address = pa_addr;
+		io_task->alloc_size = max_size;
+		vaddr += ALIGN(sizeof(struct be_cmd_bhs), 64);
+		pa_addr += ALIGN(sizeof(struct be_cmd_bhs), 64);
+	}
+	return cls_session;
+}
+
+/**
+ * beiscsi_session_destroy - destroys iscsi session
+ * @cls_session:	pointer to iscsi cls session
+ *
+ * Destroys iSCSI session instance and releases
+ * resources allocated for it.
+ */
+void beiscsi_session_destroy(struct iscsi_cls_session *cls_session)
+{
+	struct iscsi_task *task;
+	struct beiscsi_io_task *io_task;
+	struct iscsi_session *sess = cls_session->dd_data;
+	struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
+	struct beiscsi_hba *phba = iscsi_host_priv(shost);
+
+	task = sess->cmds[0];
+	io_task = task->dd_data;
+	pci_free_consistent(phba->pcidev,
+			    io_task->alloc_size,
+			    io_task->cmd_bhs,
+			    io_task->bhs_pa.u.a64.address);
+	iscsi_session_teardown(cls_session);
+}
+
+/**
+ * beiscsi_conn_create - create an instance of iscsi connection
+ * @cls_session: ptr to iscsi_cls_session
+ * @cid: iscsi cid
+ */
+struct iscsi_cls_conn *
+beiscsi_conn_create(struct iscsi_cls_session *cls_session, u32 cid)
+{
+	struct beiscsi_hba *phba;
+	struct Scsi_Host *shost;
+	struct iscsi_cls_conn *cls_conn;
+	struct beiscsi_conn *beiscsi_conn;
+	struct iscsi_conn *conn;
+
+	SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_create ,cid"
+		 "from iscsi layer=%d\n", cid);
+	shost = iscsi_session_to_shost(cls_session);
+	phba = iscsi_host_priv(shost);
+
+	cls_conn = iscsi_conn_setup(cls_session, sizeof(*beiscsi_conn), cid);
+	if (!cls_conn)
+		return NULL;
+
+	conn = cls_conn->dd_data;
+	beiscsi_conn = conn->dd_data;
+	beiscsi_conn->ep = NULL;
+	beiscsi_conn->phba = phba;
+	beiscsi_conn->conn = conn;
+	return cls_conn;
+}
+
+/**
+ * beiscsi_bindconn_cid - Bind the beiscsi_conn with phba connection table
+ * @beiscsi_conn: The pointer to  beiscsi_conn structure
+ * @phba: The phba instance
+ * @cid: The cid to free
+ */
+static int beiscsi_bindconn_cid(struct beiscsi_hba *phba,
+				struct beiscsi_conn *beiscsi_conn,
+				unsigned int cid)
+{
+	if (phba->conn_table[cid]) {
+		SE_DEBUG(DBG_LVL_1,
+			 "Connection table already occupied. Detected clash\n");
+		return -EINVAL;
+	} else {
+		SE_DEBUG(DBG_LVL_8, "phba->conn_table[%d]=%p(beiscsi_conn) \n",
+			 cid, beiscsi_conn);
+		phba->conn_table[cid] = beiscsi_conn;
+	}
+	return 0;
+}
+
+/**
+ * beiscsi_conn_bind - Binds iscsi session/connection with TCP connection
+ * @cls_session: pointer to iscsi cls session
+ * @cls_conn: pointer to iscsi cls conn
+ * @transport_fd: EP handle(64 bit)
+ *
+ * This function binds the TCP Conn with iSCSI Connection and Session.
+ */
+int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
+		      struct iscsi_cls_conn *cls_conn,
+		      u64 transport_fd, int is_leading)
+{
+	struct iscsi_conn *conn = cls_conn->dd_data;
+	struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+	struct Scsi_Host *shost =
+		(struct Scsi_Host *)iscsi_session_to_shost(cls_session);
+	struct beiscsi_hba *phba = (struct beiscsi_hba *)iscsi_host_priv(shost);
+	struct beiscsi_endpoint *beiscsi_ep;
+	struct iscsi_endpoint *ep;
+
+	SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_bind\n");
+	ep = iscsi_lookup_endpoint(transport_fd);
+	if (!ep)
+		return -EINVAL;
+
+	beiscsi_ep = ep->dd_data;
+
+	if (iscsi_conn_bind(cls_session, cls_conn, is_leading))
+		return -EINVAL;
+
+	if (beiscsi_ep->phba != phba) {
+		SE_DEBUG(DBG_LVL_8,
+			 "beiscsi_ep->hba=%p not equal to phba=%p \n",
+			 beiscsi_ep->phba, phba);
+		return -EEXIST;
+	}
+
+	beiscsi_conn->beiscsi_conn_cid = beiscsi_ep->ep_cid;
+	beiscsi_conn->ep = beiscsi_ep;
+	beiscsi_ep->conn = beiscsi_conn;
+	SE_DEBUG(DBG_LVL_8, "beiscsi_conn=%p conn=%p ep_cid=%d \n",
+		 beiscsi_conn, conn, beiscsi_ep->ep_cid);
+	return beiscsi_bindconn_cid(phba, beiscsi_conn, beiscsi_ep->ep_cid);
+}
+
+/**
+ * beiscsi_conn_get_param - get the iscsi parameter
+ * @cls_conn: pointer to iscsi cls conn
+ * @param: parameter type identifier
+ * @buf: buffer pointer
+ *
+ * returns iscsi parameter
+ */
+int beiscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
+			   enum iscsi_param param, char *buf)
+{
+	struct beiscsi_endpoint *beiscsi_ep;
+	struct iscsi_conn *conn = cls_conn->dd_data;
+	struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+	int len = 0;
+
+	beiscsi_ep = beiscsi_conn->ep;
+	if (!beiscsi_ep) {
+		SE_DEBUG(DBG_LVL_1,
+			 "In beiscsi_conn_get_param , no beiscsi_ep\n");
+		return -1;
+	}
+
+	switch (param) {
+	case ISCSI_PARAM_CONN_PORT:
+		len = sprintf(buf, "%hu\n", beiscsi_ep->dst_tcpport);
+		break;
+	case ISCSI_PARAM_CONN_ADDRESS:
+		if (beiscsi_ep->ip_type == BE2_IPV4)
+			len = sprintf(buf, "%pI4\n", &beiscsi_ep->dst_addr);
+		else
+			len = sprintf(buf, "%pI6\n", &beiscsi_ep->dst6_addr);
+		break;
+	default:
+		return iscsi_conn_get_param(cls_conn, param, buf);
+	}
+	return len;
+}
+
+int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
+		      enum iscsi_param param, char *buf, int buflen)
+{
+	struct iscsi_conn *conn = cls_conn->dd_data;
+	struct iscsi_session *session = conn->session;
+	int ret;
+
+	ret = iscsi_set_param(cls_conn, param, buf, buflen);
+	if (ret)
+		return ret;
+	/*
+	 * If userspace tried to set the value to higher than we can
+	 * support override here.
+	 */
+	switch (param) {
+	case ISCSI_PARAM_FIRST_BURST:
+		if (session->first_burst > 8192)
+			session->first_burst = 8192;
+		break;
+	case ISCSI_PARAM_MAX_RECV_DLENGTH:
+		if (conn->max_recv_dlength > 65536)
+			conn->max_recv_dlength = 65536;
+		break;
+	case ISCSI_PARAM_MAX_BURST:
+		if (session->first_burst > 262144)
+			session->first_burst = 262144;
+		break;
+	default:
+		return 0;
+	}
+
+	return 0;
+}
+
+/**
+ * beiscsi_get_host_param - get the iscsi parameter
+ * @shost: pointer to scsi_host structure
+ * @param: parameter type identifier
+ * @buf: buffer pointer
+ *
+ * returns host parameter
+ */
+int beiscsi_get_host_param(struct Scsi_Host *shost,
+			   enum iscsi_host_param param, char *buf)
+{
+	struct beiscsi_hba *phba = (struct beiscsi_hba *)iscsi_host_priv(shost);
+	int len = 0;
+
+	switch (param) {
+	case ISCSI_HOST_PARAM_HWADDRESS:
+		be_cmd_get_mac_addr(&phba->ctrl, phba->mac_address);
+		len = sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
+		break;
+	default:
+		return iscsi_host_get_param(shost, param, buf);
+	}
+	return len;
+}
+
+/**
+ * beiscsi_conn_get_stats - get the iscsi stats
+ * @cls_conn: pointer to iscsi cls conn
+ * @stats: pointer to iscsi_stats structure
+ *
+ * returns iscsi stats
+ */
+void beiscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn,
+			    struct iscsi_stats *stats)
+{
+	struct iscsi_conn *conn = cls_conn->dd_data;
+
+	SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_get_stats\n");
+	stats->txdata_octets = conn->txdata_octets;
+	stats->rxdata_octets = conn->rxdata_octets;
+	stats->dataout_pdus = conn->dataout_pdus_cnt;
+	stats->scsirsp_pdus = conn->scsirsp_pdus_cnt;
+	stats->scsicmd_pdus = conn->scsicmd_pdus_cnt;
+	stats->datain_pdus = conn->datain_pdus_cnt;
+	stats->tmfrsp_pdus = conn->tmfrsp_pdus_cnt;
+	stats->tmfcmd_pdus = conn->tmfcmd_pdus_cnt;
+	stats->r2t_pdus = conn->r2t_pdus_cnt;
+	stats->digest_err = 0;
+	stats->timeout_err = 0;
+	stats->custom_length = 0;
+	strcpy(stats->custom[0].desc, "eh_abort_cnt");
+	stats->custom[0].value = conn->eh_abort_cnt;
+}
+
+/**
+ * beiscsi_set_params_for_offld - get the parameters for offload
+ * @beiscsi_conn: pointer to beiscsi_conn
+ * @params: pointer to offload_params structure
+ */
+static void  beiscsi_set_params_for_offld(struct beiscsi_conn *beiscsi_conn,
+					  struct beiscsi_offload_params *params)
+{
+	struct iscsi_conn *conn = beiscsi_conn->conn;
+	struct iscsi_session *session = conn->session;
+
+	AMAP_SET_BITS(struct amap_beiscsi_offload_params, max_burst_length,
+		      params, session->max_burst);
+	AMAP_SET_BITS(struct amap_beiscsi_offload_params,
+		      max_send_data_segment_length, params,
+		      conn->max_xmit_dlength);
+	AMAP_SET_BITS(struct amap_beiscsi_offload_params, first_burst_length,
+		      params, session->first_burst);
+	AMAP_SET_BITS(struct amap_beiscsi_offload_params, erl, params,
+		      session->erl);
+	AMAP_SET_BITS(struct amap_beiscsi_offload_params, dde, params,
+		      conn->datadgst_en);
+	AMAP_SET_BITS(struct amap_beiscsi_offload_params, hde, params,
+		      conn->hdrdgst_en);
+	AMAP_SET_BITS(struct amap_beiscsi_offload_params, ir2t, params,
+		      session->initial_r2t_en);
+	AMAP_SET_BITS(struct amap_beiscsi_offload_params, imd, params,
+		      session->imm_data_en);
+	AMAP_SET_BITS(struct amap_beiscsi_offload_params, exp_statsn, params,
+		      (conn->exp_statsn - 1));
+}
+
+/**
+ * beiscsi_conn_start - offload of session to chip
+ * @cls_conn: pointer to beiscsi_conn
+ */
+int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn)
+{
+	struct iscsi_conn *conn = cls_conn->dd_data;
+	struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+	struct beiscsi_endpoint *beiscsi_ep;
+	struct beiscsi_offload_params params;
+	struct iscsi_session *session = conn->session;
+	struct Scsi_Host *shost = iscsi_session_to_shost(session->cls_session);
+	struct beiscsi_hba *phba = iscsi_host_priv(shost);
+
+	memset(&params, 0, sizeof(struct beiscsi_offload_params));
+	beiscsi_ep = beiscsi_conn->ep;
+	if (!beiscsi_ep)
+		SE_DEBUG(DBG_LVL_1, "In beiscsi_conn_start , no beiscsi_ep\n");
+
+	free_mgmt_sgl_handle(phba, beiscsi_conn->plogin_sgl_handle);
+	beiscsi_conn->login_in_progress = 0;
+	beiscsi_set_params_for_offld(beiscsi_conn, &params);
+	beiscsi_offload_connection(beiscsi_conn, &params);
+	iscsi_conn_start(cls_conn);
+	return 0;
+}
+
+/**
+ * beiscsi_get_cid - Allocate a cid
+ * @phba: The phba instance
+ */
+static int beiscsi_get_cid(struct beiscsi_hba *phba)
+{
+	unsigned short cid = 0xFFFF;
+
+	if (!phba->avlbl_cids)
+		return cid;
+
+	cid = phba->cid_array[phba->cid_alloc++];
+	if (phba->cid_alloc == phba->params.cxns_per_ctrl)
+		phba->cid_alloc = 0;
+	phba->avlbl_cids--;
+	return cid;
+}
+
+/**
+ * beiscsi_open_conn - Ask FW to open a TCP connection
+ * @ep:	endpoint to be used
+ * @src_addr: The source IP address
+ * @dst_addr: The Destination  IP address
+ *
+ * Asks the FW to open a TCP connection
+ */
+static int beiscsi_open_conn(struct iscsi_endpoint *ep,
+			     struct sockaddr *src_addr,
+			     struct sockaddr *dst_addr, int non_blocking)
+{
+	struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
+	struct beiscsi_hba *phba = beiscsi_ep->phba;
+	int ret = -1;
+
+	beiscsi_ep->ep_cid = beiscsi_get_cid(phba);
+	if (beiscsi_ep->ep_cid == 0xFFFF) {
+		SE_DEBUG(DBG_LVL_1, "No free cid available\n");
+		return ret;
+	}
+	SE_DEBUG(DBG_LVL_8, "In beiscsi_open_conn, ep_cid=%d ",
+		 beiscsi_ep->ep_cid);
+	phba->ep_array[beiscsi_ep->ep_cid] = ep;
+	if (beiscsi_ep->ep_cid >
+	    (phba->fw_config.iscsi_cid_start + phba->params.cxns_per_ctrl)) {
+		SE_DEBUG(DBG_LVL_1, "Failed in allocate iscsi cid\n");
+		return ret;
+	}
+
+	beiscsi_ep->cid_vld = 0;
+	return mgmt_open_connection(phba, dst_addr, beiscsi_ep);
+}
+
+/**
+ * beiscsi_put_cid - Free the cid
+ * @phba: The phba for which the cid is being freed
+ * @cid: The cid to free
+ */
+static void beiscsi_put_cid(struct beiscsi_hba *phba, unsigned short cid)
+{
+	phba->avlbl_cids++;
+	phba->cid_array[phba->cid_free++] = cid;
+	if (phba->cid_free == phba->params.cxns_per_ctrl)
+		phba->cid_free = 0;
+}
+
+/**
+ * beiscsi_free_ep - free endpoint
+ * @ep:	pointer to iscsi endpoint structure
+ */
+static void beiscsi_free_ep(struct iscsi_endpoint *ep)
+{
+	struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
+	struct beiscsi_hba *phba = beiscsi_ep->phba;
+
+	beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
+	beiscsi_ep->phba = NULL;
+	iscsi_destroy_endpoint(ep);
+}
+
+/**
+ * beiscsi_ep_connect - Ask chip to create TCP Conn
+ * @scsi_host: Pointer to scsi_host structure
+ * @dst_addr: The IP address of Target
+ * @non_blocking: blocking or non-blocking call
+ *
+ * This routines first asks chip to create a connection and then allocates an EP
+ */
+struct iscsi_endpoint *
+beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
+		   int non_blocking)
+{
+	struct beiscsi_hba *phba;
+	struct beiscsi_endpoint *beiscsi_ep;
+	struct iscsi_endpoint *ep;
+	int ret;
+
+	SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_connect \n");
+	if (shost)
+		phba = iscsi_host_priv(shost);
+	else {
+		ret = -ENXIO;
+		SE_DEBUG(DBG_LVL_1, "shost is NULL \n");
+		return ERR_PTR(ret);
+	}
+	ep = iscsi_create_endpoint(sizeof(struct beiscsi_endpoint));
+	if (!ep) {
+		ret = -ENOMEM;
+		return ERR_PTR(ret);
+	}
+
+	beiscsi_ep = ep->dd_data;
+	beiscsi_ep->phba = phba;
+
+	if (beiscsi_open_conn(ep, NULL, dst_addr, non_blocking)) {
+		SE_DEBUG(DBG_LVL_1, "Failed in allocate iscsi cid\n");
+		ret = -ENOMEM;
+		goto free_ep;
+	}
+
+	return ep;
+
+free_ep:
+	beiscsi_free_ep(ep);
+	return ERR_PTR(ret);
+}
+
+/**
+ * beiscsi_ep_poll - Poll to see if connection is established
+ * @ep:	endpoint to be used
+ * @timeout_ms: timeout specified in millisecs
+ *
+ * Poll to see if TCP connection established
+ */
+int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
+{
+	struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
+
+	SE_DEBUG(DBG_LVL_8, "In  beiscsi_ep_poll\n");
+	if (beiscsi_ep->cid_vld == 1)
+		return 1;
+	else
+		return 0;
+}
+
+/**
+ * beiscsi_close_conn - Upload the  connection
+ * @ep: The iscsi endpoint
+ * @flag: The type of connection closure
+ */
+static int beiscsi_close_conn(struct iscsi_endpoint *ep, int flag)
+{
+	int ret = 0;
+	struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
+	struct beiscsi_hba *phba = beiscsi_ep->phba;
+
+	if (MGMT_STATUS_SUCCESS !=
+	    mgmt_upload_connection(phba, beiscsi_ep->ep_cid,
+		CONNECTION_UPLOAD_GRACEFUL)) {
+		SE_DEBUG(DBG_LVL_8, "upload failed for cid 0x%x",
+			 beiscsi_ep->ep_cid);
+		ret = -1;
+	}
+
+	return ret;
+}
+
+/**
+ * beiscsi_ep_disconnect - Tears down the TCP connection
+ * @ep:	endpoint to be used
+ *
+ * Tears down the TCP connection
+ */
+void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
+{
+	struct beiscsi_conn *beiscsi_conn;
+	struct beiscsi_endpoint *beiscsi_ep;
+	struct beiscsi_hba *phba;
+	int flag = 0;
+
+	beiscsi_ep = ep->dd_data;
+	phba = beiscsi_ep->phba;
+	SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect\n");
+
+	if (beiscsi_ep->conn) {
+		beiscsi_conn = beiscsi_ep->conn;
+		iscsi_suspend_queue(beiscsi_conn->conn);
+		beiscsi_close_conn(ep, flag);
+	}
+
+	beiscsi_free_ep(ep);
+}
+
+/**
+ * beiscsi_unbind_conn_to_cid - Unbind the beiscsi_conn from phba conn table
+ * @phba: The phba instance
+ * @cid: The cid to free
+ */
+static int beiscsi_unbind_conn_to_cid(struct beiscsi_hba *phba,
+				      unsigned int cid)
+{
+	if (phba->conn_table[cid])
+		phba->conn_table[cid] = NULL;
+	else {
+		SE_DEBUG(DBG_LVL_8, "Connection table Not occupied. \n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/**
+ * beiscsi_conn_stop - Invalidate and stop the connection
+ * @cls_conn: pointer to get iscsi_conn
+ * @flag: The type of connection closure
+ */
+void beiscsi_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
+{
+	struct iscsi_conn *conn = cls_conn->dd_data;
+	struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+	struct beiscsi_endpoint *beiscsi_ep;
+	struct iscsi_session *session = conn->session;
+	struct Scsi_Host *shost = iscsi_session_to_shost(session->cls_session);
+	struct beiscsi_hba *phba = iscsi_host_priv(shost);
+	unsigned int status;
+	unsigned short savecfg_flag = CMD_ISCSI_SESSION_SAVE_CFG_ON_FLASH;
+
+	SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_stop\n");
+	beiscsi_ep = beiscsi_conn->ep;
+	if (!beiscsi_ep) {
+		SE_DEBUG(DBG_LVL_8, "In beiscsi_conn_stop , no beiscsi_ep\n");
+		return;
+	}
+	status = mgmt_invalidate_connection(phba, beiscsi_ep,
+					    beiscsi_ep->ep_cid, 1,
+					    savecfg_flag);
+	if (status != MGMT_STATUS_SUCCESS) {
+		SE_DEBUG(DBG_LVL_1,
+			 "mgmt_invalidate_connection Failed for cid=%d \n",
+			 beiscsi_ep->ep_cid);
+	}
+	beiscsi_unbind_conn_to_cid(phba, beiscsi_ep->ep_cid);
+	iscsi_conn_stop(cls_conn, flag);
+}
diff --git a/drivers/scsi/be2iscsi/be_iscsi.h b/drivers/scsi/be2iscsi/be_iscsi.h
new file mode 100644
index 0000000..f92ffc5
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_iscsi.h
@@ -0,0 +1,75 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Written by: Jayamohan Kallickal (jayamohank@serverengines.com)
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+
+#ifndef _BE_ISCSI_
+#define _BE_ISCSI_
+
+#include "be_main.h"
+#include "be_mgmt.h"
+
+#define BE2_IPV4  0x1
+#define BE2_IPV6  0x10
+
+void beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
+				struct beiscsi_offload_params *params);
+
+void beiscsi_offload_iscsi(struct beiscsi_hba *phba, struct iscsi_conn *conn,
+			   struct beiscsi_conn *beiscsi_conn,
+			   unsigned int fw_handle);
+
+struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
+						 uint16_t cmds_max,
+						 uint16_t qdepth,
+						 uint32_t initial_cmdsn);
+
+void beiscsi_session_destroy(struct iscsi_cls_session *cls_session);
+
+struct iscsi_cls_conn *beiscsi_conn_create(struct iscsi_cls_session
+					   *cls_session, uint32_t cid);
+
+int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
+		      struct iscsi_cls_conn *cls_conn,
+		      uint64_t transport_fd, int is_leading);
+
+int beiscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
+			   enum iscsi_param param, char *buf);
+
+int beiscsi_get_host_param(struct Scsi_Host *shost,
+			   enum iscsi_host_param param, char *buf);
+
+int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
+		      enum iscsi_param param, char *buf, int buflen);
+
+int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn);
+
+void beiscsi_conn_stop(struct iscsi_cls_conn *cls_conn, int flag);
+
+struct iscsi_endpoint *beiscsi_ep_connect(struct Scsi_Host *shost,
+					  struct sockaddr *dst_addr,
+					  int non_blocking);
+
+int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms);
+
+void beiscsi_ep_disconnect(struct iscsi_endpoint *ep);
+
+void beiscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn,
+			    struct iscsi_stats *stats);
+
+#endif
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
new file mode 100644
index 0000000..d520fe8
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -0,0 +1,3393 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Written by: Jayamohan Kallickal (jayamohank@serverengines.com)
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ *  ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+#include <linux/reboot.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/blkdev.h>
+#include <linux/pci.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/semaphore.h>
+
+#include <scsi/libiscsi.h>
+#include <scsi/scsi_transport_iscsi.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi.h>
+#include "be_main.h"
+#include "be_iscsi.h"
+#include "be_mgmt.h"
+
+static unsigned int be_iopoll_budget = 10;
+static unsigned int be_max_phys_size = 64;
+static unsigned int enable_msix;
+
+MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
+MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR);
+MODULE_AUTHOR("ServerEngines Corporation");
+MODULE_LICENSE("GPL");
+module_param(be_iopoll_budget, int, 0);
+module_param(enable_msix, int, 0);
+module_param(be_max_phys_size, uint, S_IRUGO);
+MODULE_PARM_DESC(be_max_phys_size, "Maximum Size (In Kilobytes) of physically"
+				   "contiguous memory that can be allocated."
+				   "Range is 16 - 128");
+
+static int beiscsi_slave_configure(struct scsi_device *sdev)
+{
+	blk_queue_max_segment_size(sdev->request_queue, 65536);
+	return 0;
+}
+
+static struct scsi_host_template beiscsi_sht = {
+	.module = THIS_MODULE,
+	.name = "ServerEngines 10Gbe open-iscsi Initiator Driver",
+	.proc_name = DRV_NAME,
+	.queuecommand = iscsi_queuecommand,
+	.eh_abort_handler = iscsi_eh_abort,
+	.change_queue_depth = iscsi_change_queue_depth,
+	.slave_configure = beiscsi_slave_configure,
+	.target_alloc = iscsi_target_alloc,
+	.eh_device_reset_handler = iscsi_eh_device_reset,
+	.eh_target_reset_handler = iscsi_eh_target_reset,
+	.sg_tablesize = BEISCSI_SGLIST_ELEMENTS,
+	.can_queue = BE2_IO_DEPTH,
+	.this_id = -1,
+	.max_sectors = BEISCSI_MAX_SECTORS,
+	.cmd_per_lun = BEISCSI_CMD_PER_LUN,
+	.use_clustering = ENABLE_CLUSTERING,
+};
+static struct scsi_transport_template *beiscsi_scsi_transport;
+
+/*------------------- PCI Driver operations and data ----------------- */
+static DEFINE_PCI_DEVICE_TABLE(beiscsi_pci_id_table) = {
+	{ PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
+	{ PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
+	{ PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
+	{ 0 }
+};
+MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
+
+static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev)
+{
+	struct beiscsi_hba *phba;
+	struct Scsi_Host *shost;
+
+	shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0);
+	if (!shost) {
+		dev_err(&pcidev->dev, "beiscsi_hba_alloc -"
+			"iscsi_host_alloc failed \n");
+		return NULL;
+	}
+	shost->dma_boundary = pcidev->dma_mask;
+	shost->max_id = BE2_MAX_SESSIONS;
+	shost->max_channel = 0;
+	shost->max_cmd_len = BEISCSI_MAX_CMD_LEN;
+	shost->max_lun = BEISCSI_NUM_MAX_LUN;
+	shost->transportt = beiscsi_scsi_transport;
+
+	phba = iscsi_host_priv(shost);
+	memset(phba, 0, sizeof(*phba));
+	phba->shost = shost;
+	phba->pcidev = pci_dev_get(pcidev);
+
+	if (iscsi_host_add(shost, &phba->pcidev->dev))
+		goto free_devices;
+	return phba;
+
+free_devices:
+	pci_dev_put(phba->pcidev);
+	iscsi_host_free(phba->shost);
+	return NULL;
+}
+
+static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba)
+{
+	if (phba->csr_va) {
+		iounmap(phba->csr_va);
+		phba->csr_va = NULL;
+	}
+	if (phba->db_va) {
+		iounmap(phba->db_va);
+		phba->db_va = NULL;
+	}
+	if (phba->pci_va) {
+		iounmap(phba->pci_va);
+		phba->pci_va = NULL;
+	}
+}
+
+static int beiscsi_map_pci_bars(struct beiscsi_hba *phba,
+				struct pci_dev *pcidev)
+{
+	u8 __iomem *addr;
+
+	addr = ioremap_nocache(pci_resource_start(pcidev, 2),
+			       pci_resource_len(pcidev, 2));
+	if (addr == NULL)
+		return -ENOMEM;
+	phba->ctrl.csr = addr;
+	phba->csr_va = addr;
+	phba->csr_pa.u.a64.address = pci_resource_start(pcidev, 2);
+
+	addr = ioremap_nocache(pci_resource_start(pcidev, 4), 128 * 1024);
+	if (addr == NULL)
+		goto pci_map_err;
+	phba->ctrl.db = addr;
+	phba->db_va = addr;
+	phba->db_pa.u.a64.address =  pci_resource_start(pcidev, 4);
+
+	addr = ioremap_nocache(pci_resource_start(pcidev, 1),
+			       pci_resource_len(pcidev, 1));
+	if (addr == NULL)
+		goto pci_map_err;
+	phba->ctrl.pcicfg = addr;
+	phba->pci_va = addr;
+	phba->pci_pa.u.a64.address = pci_resource_start(pcidev, 1);
+	return 0;
+
+pci_map_err:
+	beiscsi_unmap_pci_function(phba);
+	return -ENOMEM;
+}
+
+static int beiscsi_enable_pci(struct pci_dev *pcidev)
+{
+	int ret;
+
+	ret = pci_enable_device(pcidev);
+	if (ret) {
+		dev_err(&pcidev->dev, "beiscsi_enable_pci - enable device "
+			"failed. Returning -ENODEV\n");
+		return ret;
+	}
+
+	if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) {
+		ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
+		if (ret) {
+			dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n");
+			pci_disable_device(pcidev);
+			return ret;
+		}
+	}
+	return 0;
+}
+
+static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
+{
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+	struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced;
+	struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem;
+	int status = 0;
+
+	ctrl->pdev = pdev;
+	status = beiscsi_map_pci_bars(phba, pdev);
+	if (status)
+		return status;
+
+	mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
+	mbox_mem_alloc->va = pci_alloc_consistent(pdev,
+						  mbox_mem_alloc->size,
+						  &mbox_mem_alloc->dma);
+	if (!mbox_mem_alloc->va) {
+		beiscsi_unmap_pci_function(phba);
+		status = -ENOMEM;
+		return status;
+	}
+
+	mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
+	mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
+	mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
+	memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
+	spin_lock_init(&ctrl->mbox_lock);
+	return status;
+}
+
+static void beiscsi_get_params(struct beiscsi_hba *phba)
+{
+	phba->params.ios_per_ctrl = BE2_IO_DEPTH;
+	phba->params.cxns_per_ctrl = BE2_MAX_SESSIONS;
+	phba->params.asyncpdus_per_ctrl = BE2_ASYNCPDUS;
+	phba->params.icds_per_ctrl = BE2_MAX_ICDS / 2;
+	phba->params.num_sge_per_io = BE2_SGE;
+	phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ;
+	phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ;
+	phba->params.eq_timer = 64;
+	phba->params.num_eq_entries =
+	    (((BE2_CMDS_PER_CXN * 2 + BE2_LOGOUTS + BE2_TMFS + BE2_ASYNCPDUS) /
+								512) + 1) * 512;
+	phba->params.num_eq_entries = (phba->params.num_eq_entries < 1024)
+				? 1024 : phba->params.num_eq_entries;
+	SE_DEBUG(DBG_LVL_8, "phba->params.num_eq_entries=%d \n",
+		 phba->params.num_eq_entries);
+	phba->params.num_cq_entries =
+	    (((BE2_CMDS_PER_CXN * 2 + BE2_LOGOUTS + BE2_TMFS + BE2_ASYNCPDUS) /
+								512) + 1) * 512;
+	SE_DEBUG(DBG_LVL_8,
+		"phba->params.num_cq_entries=%d BE2_CMDS_PER_CXN=%d"
+		"BE2_LOGOUTS=%d BE2_TMFS=%d BE2_ASYNCPDUS=%d \n",
+		phba->params.num_cq_entries, BE2_CMDS_PER_CXN,
+		BE2_LOGOUTS, BE2_TMFS, BE2_ASYNCPDUS);
+	phba->params.wrbs_per_cxn = 256;
+}
+
+static void hwi_ring_eq_db(struct beiscsi_hba *phba,
+			   unsigned int id, unsigned int clr_interrupt,
+			   unsigned int num_processed,
+			   unsigned char rearm, unsigned char event)
+{
+	u32 val = 0;
+	val |= id & DB_EQ_RING_ID_MASK;
+	if (rearm)
+		val |= 1 << DB_EQ_REARM_SHIFT;
+	if (clr_interrupt)
+		val |= 1 << DB_EQ_CLR_SHIFT;
+	if (event)
+		val |= 1 << DB_EQ_EVNT_SHIFT;
+	val |= num_processed << DB_EQ_NUM_POPPED_SHIFT;
+	iowrite32(val, phba->db_va + DB_EQ_OFFSET);
+}
+
+/**
+ * be_isr - The isr routine of the driver.
+ * @irq: Not used
+ * @dev_id: Pointer to host adapter structure
+ */
+static irqreturn_t be_isr(int irq, void *dev_id)
+{
+	struct beiscsi_hba *phba;
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_context_memory *phwi_context;
+	struct be_eq_entry *eqe = NULL;
+	struct be_queue_info *eq;
+	struct be_queue_info *cq;
+	unsigned long flags, index;
+	unsigned int num_eq_processed;
+	struct be_ctrl_info *ctrl;
+	int isr;
+
+	phba = dev_id;
+	if (!enable_msix) {
+		ctrl = &phba->ctrl;;
+		isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET +
+			       (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE));
+		if (!isr)
+			return IRQ_NONE;
+	}
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	phwi_context = phwi_ctrlr->phwi_ctxt;
+	eq = &phwi_context->be_eq.q;
+	cq = &phwi_context->be_cq;
+	index = 0;
+	eqe = queue_tail_node(eq);
+	if (!eqe)
+		SE_DEBUG(DBG_LVL_1, "eqe is NULL\n");
+
+	num_eq_processed = 0;
+	if (blk_iopoll_enabled) {
+		while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+					& EQE_VALID_MASK) {
+			if (!blk_iopoll_sched_prep(&phba->iopoll))
+				blk_iopoll_sched(&phba->iopoll);
+
+			AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+			queue_tail_inc(eq);
+			eqe = queue_tail_node(eq);
+			num_eq_processed++;
+			SE_DEBUG(DBG_LVL_8, "Valid EQE\n");
+		}
+		if (num_eq_processed) {
+			hwi_ring_eq_db(phba, eq->id, 0,	num_eq_processed, 0, 1);
+			return IRQ_HANDLED;
+		} else
+			return IRQ_NONE;
+	} else {
+		while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+						& EQE_VALID_MASK) {
+
+			if (((eqe->dw[offsetof(struct amap_eq_entry,
+			     resource_id) / 32] &
+			     EQE_RESID_MASK) >> 16) != cq->id) {
+				spin_lock_irqsave(&phba->isr_lock, flags);
+				phba->todo_mcc_cq = 1;
+				spin_unlock_irqrestore(&phba->isr_lock, flags);
+			} else {
+				spin_lock_irqsave(&phba->isr_lock, flags);
+				phba->todo_cq = 1;
+				spin_unlock_irqrestore(&phba->isr_lock, flags);
+			}
+			AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+			queue_tail_inc(eq);
+			eqe = queue_tail_node(eq);
+			num_eq_processed++;
+		}
+		if (phba->todo_cq || phba->todo_mcc_cq)
+			queue_work(phba->wq, &phba->work_cqs);
+
+		if (num_eq_processed) {
+			hwi_ring_eq_db(phba, eq->id, 0, num_eq_processed, 1, 1);
+			return IRQ_HANDLED;
+		} else
+			return IRQ_NONE;
+	}
+}
+
+static int beiscsi_init_irqs(struct beiscsi_hba *phba)
+{
+	struct pci_dev *pcidev = phba->pcidev;
+	int ret;
+
+	ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED, "beiscsi", phba);
+	if (ret) {
+		shost_printk(KERN_ERR, phba->shost, "beiscsi_init_irqs-"
+			     "Failed to register irq\\n");
+		return ret;
+	}
+	return 0;
+}
+
+static void hwi_ring_cq_db(struct beiscsi_hba *phba,
+			   unsigned int id, unsigned int num_processed,
+			   unsigned char rearm, unsigned char event)
+{
+	u32 val = 0;
+	val |= id & DB_CQ_RING_ID_MASK;
+	if (rearm)
+		val |= 1 << DB_CQ_REARM_SHIFT;
+	val |= num_processed << DB_CQ_NUM_POPPED_SHIFT;
+	iowrite32(val, phba->db_va + DB_CQ_OFFSET);
+}
+
+/*
+ * async pdus include
+ * a. unsolicited NOP-In (target initiated NOP-In)
+ * b. Async Messages
+ * c. Reject PDU
+ * d. Login response
+ * These headers arrive unprocessed by the EP firmware and iSCSI layer
+ * process them
+ */
+static unsigned int
+beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn,
+			  struct beiscsi_hba *phba,
+			  unsigned short cid,
+			  struct pdu_base *ppdu,
+			  unsigned long pdu_len,
+			  void *pbuffer, unsigned long buf_len)
+{
+	struct iscsi_conn *conn = beiscsi_conn->conn;
+	struct iscsi_session *session = conn->session;
+
+	switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] &
+						PDUBASE_OPCODE_MASK) {
+	case ISCSI_OP_NOOP_IN:
+		pbuffer = NULL;
+		buf_len = 0;
+		break;
+	case ISCSI_OP_ASYNC_EVENT:
+		break;
+	case ISCSI_OP_REJECT:
+		WARN_ON(!pbuffer);
+		WARN_ON(!(buf_len == 48));
+		SE_DEBUG(DBG_LVL_1, "In ISCSI_OP_REJECT\n");
+		break;
+	case ISCSI_OP_LOGIN_RSP:
+		break;
+	default:
+		shost_printk(KERN_WARNING, phba->shost,
+			     "Unrecognized opcode 0x%x in async msg \n",
+			     (ppdu->
+			     dw[offsetof(struct amap_pdu_base, opcode) / 32]
+						& PDUBASE_OPCODE_MASK));
+		return 1;
+	}
+
+	spin_lock_bh(&session->lock);
+	__iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len);
+	spin_unlock_bh(&session->lock);
+	return 0;
+}
+
+static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba)
+{
+	struct sgl_handle *psgl_handle;
+
+	if (phba->io_sgl_hndl_avbl) {
+		SE_DEBUG(DBG_LVL_8,
+			 "In alloc_io_sgl_handle,io_sgl_alloc_index=%d \n",
+			 phba->io_sgl_alloc_index);
+		psgl_handle = phba->io_sgl_hndl_base[phba->
+						io_sgl_alloc_index];
+		phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL;
+		phba->io_sgl_hndl_avbl--;
+		if (phba->io_sgl_alloc_index == (phba->params.ios_per_ctrl - 1))
+			phba->io_sgl_alloc_index = 0;
+		else
+			phba->io_sgl_alloc_index++;
+	} else
+		psgl_handle = NULL;
+	return psgl_handle;
+}
+
+static void
+free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
+{
+	SE_DEBUG(DBG_LVL_8, "In free_,io_sgl_free_index=%d \n",
+		 phba->io_sgl_free_index);
+	if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) {
+		/*
+		 * this can happen if clean_task is called on a task that
+		 * failed in xmit_task or alloc_pdu.
+		 */
+		 SE_DEBUG(DBG_LVL_8,
+			 "Double Free in IO SGL io_sgl_free_index=%d,"
+			 "value there=%p \n", phba->io_sgl_free_index,
+			 phba->io_sgl_hndl_base[phba->io_sgl_free_index]);
+		return;
+	}
+	phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle;
+	phba->io_sgl_hndl_avbl++;
+	if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1))
+		phba->io_sgl_free_index = 0;
+	else
+		phba->io_sgl_free_index++;
+}
+
+/**
+ * alloc_wrb_handle - To allocate a wrb handle
+ * @phba: The hba pointer
+ * @cid: The cid to use for allocation
+ * @index: index allocation and wrb index
+ *
+ * This happens under session_lock until submission to chip
+ */
+struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid,
+				    int index)
+{
+	struct hwi_wrb_context *pwrb_context;
+	struct hwi_controller *phwi_ctrlr;
+	struct wrb_handle *pwrb_handle;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	pwrb_context = &phwi_ctrlr->wrb_context[cid];
+	pwrb_handle = pwrb_context->pwrb_handle_base[index];
+	pwrb_handle->wrb_index = index;
+	pwrb_handle->nxt_wrb_index = index;
+	return pwrb_handle;
+}
+
+/**
+ * free_wrb_handle - To free the wrb handle back to pool
+ * @phba: The hba pointer
+ * @pwrb_context: The context to free from
+ * @pwrb_handle: The wrb_handle to free
+ *
+ * This happens under session_lock until submission to chip
+ */
+static void
+free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context,
+		struct wrb_handle *pwrb_handle)
+{
+	SE_DEBUG(DBG_LVL_8,
+		 "FREE WRB: pwrb_handle=%p free_index=%d=0x%x"
+		 "wrb_handles_available=%d \n",
+		 pwrb_handle, pwrb_context->free_index,
+		 pwrb_context->free_index, pwrb_context->wrb_handles_available);
+}
+
+static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba)
+{
+	struct sgl_handle *psgl_handle;
+
+	if (phba->eh_sgl_hndl_avbl) {
+		psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index];
+		phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL;
+		SE_DEBUG(DBG_LVL_8, "mgmt_sgl_alloc_index=%d=0x%x \n",
+			 phba->eh_sgl_alloc_index, phba->eh_sgl_alloc_index);
+		phba->eh_sgl_hndl_avbl--;
+		if (phba->eh_sgl_alloc_index ==
+		    (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl -
+		     1))
+			phba->eh_sgl_alloc_index = 0;
+		else
+			phba->eh_sgl_alloc_index++;
+	} else
+		psgl_handle = NULL;
+	return psgl_handle;
+}
+
+void
+free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
+{
+
+	if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) {
+		/*
+		 * this can happen if clean_task is called on a task that
+		 * failed in xmit_task or alloc_pdu.
+		 */
+		SE_DEBUG(DBG_LVL_8,
+			 "Double Free in eh SGL ,eh_sgl_free_index=%d \n",
+			 phba->eh_sgl_free_index);
+		return;
+	}
+	phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle;
+	phba->eh_sgl_hndl_avbl++;
+	if (phba->eh_sgl_free_index ==
+	    (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1))
+		phba->eh_sgl_free_index = 0;
+	else
+		phba->eh_sgl_free_index++;
+}
+
+static void
+be_complete_io(struct beiscsi_conn *beiscsi_conn,
+	       struct iscsi_task *task, struct sol_cqe *psol)
+{
+	struct beiscsi_io_task *io_task = task->dd_data;
+	struct be_status_bhs *sts_bhs =
+				(struct be_status_bhs *)io_task->cmd_bhs;
+	struct iscsi_conn *conn = beiscsi_conn->conn;
+	unsigned int sense_len;
+	unsigned char *sense;
+	u32 resid = 0, exp_cmdsn, max_cmdsn;
+	u8 rsp, status, flags;
+
+	exp_cmdsn = be32_to_cpu(psol->
+			dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
+			& SOL_EXP_CMD_SN_MASK);
+	max_cmdsn = be32_to_cpu((psol->
+			dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
+			& SOL_EXP_CMD_SN_MASK) +
+			((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
+				/ 32] & SOL_CMD_WND_MASK) >> 24) - 1);
+	rsp = ((psol->dw[offsetof(struct amap_sol_cqe, i_resp) / 32]
+						& SOL_RESP_MASK) >> 16);
+	status = ((psol->dw[offsetof(struct amap_sol_cqe, i_sts) / 32]
+						& SOL_STS_MASK) >> 8);
+	flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
+					& SOL_FLAGS_MASK) >> 24) | 0x80;
+
+	task->sc->result = (DID_OK << 16) | status;
+	if (rsp != ISCSI_STATUS_CMD_COMPLETED) {
+		task->sc->result = DID_ERROR << 16;
+		goto unmap;
+	}
+
+	/* bidi not initially supported */
+	if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) {
+		resid = (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) /
+				32] & SOL_RES_CNT_MASK);
+
+		if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW))
+			task->sc->result = DID_ERROR << 16;
+
+		if (flags & ISCSI_FLAG_CMD_UNDERFLOW) {
+			scsi_set_resid(task->sc, resid);
+			if (!status && (scsi_bufflen(task->sc) - resid <
+			    task->sc->underflow))
+				task->sc->result = DID_ERROR << 16;
+		}
+	}
+
+	if (status == SAM_STAT_CHECK_CONDITION) {
+		sense = sts_bhs->sense_info + sizeof(unsigned short);
+		sense_len =
+		    cpu_to_be16((unsigned short)(sts_bhs->sense_info[0]));
+		memcpy(task->sc->sense_buffer, sense,
+		       min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE));
+	}
+	if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ) {
+		if (psol->dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32]
+							& SOL_RES_CNT_MASK)
+			 conn->rxdata_octets += (psol->
+			      dw[offsetof(struct amap_sol_cqe, i_res_cnt) / 32]
+							& SOL_RES_CNT_MASK);
+	}
+unmap:
+	scsi_dma_unmap(io_task->scsi_cmnd);
+	iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn);
+}
+
+static void
+be_complete_logout(struct beiscsi_conn *beiscsi_conn,
+		   struct iscsi_task *task, struct sol_cqe *psol)
+{
+	struct iscsi_logout_rsp *hdr;
+	struct iscsi_conn *conn = beiscsi_conn->conn;
+
+	hdr = (struct iscsi_logout_rsp *)task->hdr;
+	hdr->t2wait = 5;
+	hdr->t2retain = 0;
+	hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
+					& SOL_FLAGS_MASK) >> 24) | 0x80;
+	hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) /
+					32] & SOL_RESP_MASK);
+	hdr->exp_cmdsn = cpu_to_be32(psol->
+			dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
+					& SOL_EXP_CMD_SN_MASK);
+	hdr->max_cmdsn = be32_to_cpu((psol->
+			 dw[offsetof(struct amap_sol_cqe, i_exp_cmd_sn) / 32]
+					& SOL_EXP_CMD_SN_MASK) +
+			((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
+					/ 32] & SOL_CMD_WND_MASK) >> 24) - 1);
+	hdr->hlength = 0;
+
+	__iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
+}
+
+static void
+be_complete_tmf(struct beiscsi_conn *beiscsi_conn,
+		struct iscsi_task *task, struct sol_cqe *psol)
+{
+	struct iscsi_tm_rsp *hdr;
+	struct iscsi_conn *conn = beiscsi_conn->conn;
+
+	hdr = (struct iscsi_tm_rsp *)task->hdr;
+	hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
+					& SOL_FLAGS_MASK) >> 24) | 0x80;
+	hdr->response = (psol->dw[offsetof(struct amap_sol_cqe, i_resp) /
+					32] & SOL_RESP_MASK);
+	hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe,
+				     i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK);
+	hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe,
+			i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) +
+			((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
+			/ 32] & SOL_CMD_WND_MASK) >> 24) - 1);
+	__iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
+}
+
+static void
+hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
+		       struct beiscsi_hba *phba, struct sol_cqe *psol)
+{
+	struct hwi_wrb_context *pwrb_context;
+	struct wrb_handle *pwrb_handle;
+	struct hwi_controller *phwi_ctrlr;
+	struct iscsi_conn *conn = beiscsi_conn->conn;
+	struct iscsi_session *session = conn->session;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	pwrb_context = &phwi_ctrlr->wrb_context[((psol->
+				dw[offsetof(struct amap_sol_cqe, cid) / 32] &
+				SOL_CID_MASK) >> 6)];
+	pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol->
+				dw[offsetof(struct amap_sol_cqe, wrb_index) /
+				32] & SOL_WRB_INDEX_MASK) >> 16)];
+	spin_lock_bh(&session->lock);
+	free_wrb_handle(phba, pwrb_context, pwrb_handle);
+	spin_unlock_bh(&session->lock);
+}
+
+static void
+be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn,
+		       struct iscsi_task *task, struct sol_cqe *psol)
+{
+	struct iscsi_nopin *hdr;
+	struct iscsi_conn *conn = beiscsi_conn->conn;
+
+	hdr = (struct iscsi_nopin *)task->hdr;
+	hdr->flags = ((psol->dw[offsetof(struct amap_sol_cqe, i_flags) / 32]
+			& SOL_FLAGS_MASK) >> 24) | 0x80;
+	hdr->exp_cmdsn = cpu_to_be32(psol->dw[offsetof(struct amap_sol_cqe,
+				     i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK);
+	hdr->max_cmdsn = be32_to_cpu((psol->dw[offsetof(struct amap_sol_cqe,
+			i_exp_cmd_sn) / 32] & SOL_EXP_CMD_SN_MASK) +
+			((psol->dw[offsetof(struct amap_sol_cqe, i_cmd_wnd)
+			/ 32] & SOL_CMD_WND_MASK) >> 24) - 1);
+	hdr->opcode = ISCSI_OP_NOOP_IN;
+	__iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
+}
+
+static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn,
+			     struct beiscsi_hba *phba, struct sol_cqe *psol)
+{
+	struct hwi_wrb_context *pwrb_context;
+	struct wrb_handle *pwrb_handle;
+	struct iscsi_wrb *pwrb = NULL;
+	struct hwi_controller *phwi_ctrlr;
+	struct iscsi_task *task;
+	struct beiscsi_io_task *io_task;
+	struct iscsi_conn *conn = beiscsi_conn->conn;
+	struct iscsi_session *session = conn->session;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+
+	pwrb_context = &phwi_ctrlr->
+		wrb_context[((psol->dw[offsetof(struct amap_sol_cqe, cid) / 32]
+		& SOL_CID_MASK) >> 6)];
+	pwrb_handle = pwrb_context->pwrb_handle_basestd[((psol->
+				dw[offsetof(struct amap_sol_cqe, wrb_index) /
+				32] & SOL_WRB_INDEX_MASK) >> 16)];
+
+	task = pwrb_handle->pio_handle;
+	io_task = task->dd_data;
+	spin_lock_bh(&session->lock);
+	pwrb = pwrb_handle->pwrb;
+	switch ((pwrb->dw[offsetof(struct amap_iscsi_wrb, type) / 32] &
+		 WRB_TYPE_MASK) >> 28) {
+	case HWH_TYPE_IO:
+	case HWH_TYPE_IO_RD:
+		if ((task->hdr->opcode & ISCSI_OPCODE_MASK) ==
+		    ISCSI_OP_NOOP_OUT) {
+			be_complete_nopin_resp(beiscsi_conn, task, psol);
+		} else
+			be_complete_io(beiscsi_conn, task, psol);
+		break;
+
+	case HWH_TYPE_LOGOUT:
+		be_complete_logout(beiscsi_conn, task, psol);
+		break;
+
+	case HWH_TYPE_LOGIN:
+		SE_DEBUG(DBG_LVL_1,
+			 "\t\t No HWH_TYPE_LOGIN Expected in hwi_complete_cmd"
+			 "- Solicited path \n");
+		break;
+
+	case HWH_TYPE_TMF:
+		be_complete_tmf(beiscsi_conn, task, psol);
+		break;
+
+	case HWH_TYPE_NOP:
+		be_complete_nopin_resp(beiscsi_conn, task, psol);
+		break;
+
+	default:
+		shost_printk(KERN_WARNING, phba->shost,
+			    "wrb_index 0x%x CID 0x%x\n",
+			    ((psol->dw[offsetof(struct amap_iscsi_wrb, type) /
+					32] & SOL_WRB_INDEX_MASK) >> 16),
+			    ((psol->dw[offsetof(struct amap_sol_cqe, cid) / 32]
+					& SOL_CID_MASK) >> 6));
+		break;
+	}
+
+	spin_unlock_bh(&session->lock);
+}
+
+static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context
+					  *pasync_ctx, unsigned int is_header,
+					  unsigned int host_write_ptr)
+{
+	if (is_header)
+		return &pasync_ctx->async_entry[host_write_ptr].
+		    header_busy_list;
+	else
+		return &pasync_ctx->async_entry[host_write_ptr].data_busy_list;
+}
+
+static struct async_pdu_handle *
+hwi_get_async_handle(struct beiscsi_hba *phba,
+		     struct beiscsi_conn *beiscsi_conn,
+		     struct hwi_async_pdu_context *pasync_ctx,
+		     struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index)
+{
+	struct be_bus_address phys_addr;
+	struct list_head *pbusy_list;
+	struct async_pdu_handle *pasync_handle = NULL;
+	int buffer_len = 0;
+	unsigned char buffer_index = -1;
+	unsigned char is_header = 0;
+
+	phys_addr.u.a32.address_lo =
+	    pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_lo) / 32] -
+	    ((pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32]
+						& PDUCQE_DPL_MASK) >> 16);
+	phys_addr.u.a32.address_hi =
+	    pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, db_addr_hi) / 32];
+
+	phys_addr.u.a64.address =
+			*((unsigned long long *)(&phys_addr.u.a64.address));
+
+	switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32]
+			& PDUCQE_CODE_MASK) {
+	case UNSOL_HDR_NOTIFY:
+		is_header = 1;
+
+		pbusy_list = hwi_get_async_busy_list(pasync_ctx, 1,
+			(pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
+			index) / 32] & PDUCQE_INDEX_MASK));
+
+		buffer_len = (unsigned int)(phys_addr.u.a64.address -
+				pasync_ctx->async_header.pa_base.u.a64.address);
+
+		buffer_index = buffer_len /
+				pasync_ctx->async_header.buffer_size;
+
+		break;
+	case UNSOL_DATA_NOTIFY:
+		pbusy_list = hwi_get_async_busy_list(pasync_ctx, 0, (pdpdu_cqe->
+					dw[offsetof(struct amap_i_t_dpdu_cqe,
+					index) / 32] & PDUCQE_INDEX_MASK));
+		buffer_len = (unsigned long)(phys_addr.u.a64.address -
+					pasync_ctx->async_data.pa_base.u.
+					a64.address);
+		buffer_index = buffer_len / pasync_ctx->async_data.buffer_size;
+		break;
+	default:
+		pbusy_list = NULL;
+		shost_printk(KERN_WARNING, phba->shost,
+			"Unexpected code=%d \n",
+			 pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
+					code) / 32] & PDUCQE_CODE_MASK);
+		return NULL;
+	}
+
+	WARN_ON(!(buffer_index <= pasync_ctx->async_data.num_entries));
+	WARN_ON(list_empty(pbusy_list));
+	list_for_each_entry(pasync_handle, pbusy_list, link) {
+		WARN_ON(pasync_handle->consumed);
+		if (pasync_handle->index == buffer_index)
+			break;
+	}
+
+	WARN_ON(!pasync_handle);
+
+	pasync_handle->cri = (unsigned short)beiscsi_conn->beiscsi_conn_cid;
+	pasync_handle->is_header = is_header;
+	pasync_handle->buffer_len = ((pdpdu_cqe->
+			dw[offsetof(struct amap_i_t_dpdu_cqe, dpl) / 32]
+			& PDUCQE_DPL_MASK) >> 16);
+
+	*pcq_index = (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
+			index) / 32] & PDUCQE_INDEX_MASK);
+	return pasync_handle;
+}
+
+static unsigned int
+hwi_update_async_writables(struct hwi_async_pdu_context *pasync_ctx,
+			   unsigned int is_header, unsigned int cq_index)
+{
+	struct list_head *pbusy_list;
+	struct async_pdu_handle *pasync_handle;
+	unsigned int num_entries, writables = 0;
+	unsigned int *pep_read_ptr, *pwritables;
+
+
+	if (is_header) {
+		pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr;
+		pwritables = &pasync_ctx->async_header.writables;
+		num_entries = pasync_ctx->async_header.num_entries;
+	} else {
+		pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr;
+		pwritables = &pasync_ctx->async_data.writables;
+		num_entries = pasync_ctx->async_data.num_entries;
+	}
+
+	while ((*pep_read_ptr) != cq_index) {
+		(*pep_read_ptr)++;
+		*pep_read_ptr = (*pep_read_ptr) % num_entries;
+
+		pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header,
+						     *pep_read_ptr);
+		if (writables == 0)
+			WARN_ON(list_empty(pbusy_list));
+
+		if (!list_empty(pbusy_list)) {
+			pasync_handle = list_entry(pbusy_list->next,
+						   struct async_pdu_handle,
+						   link);
+			WARN_ON(!pasync_handle);
+			pasync_handle->consumed = 1;
+		}
+
+		writables++;
+	}
+
+	if (!writables) {
+		SE_DEBUG(DBG_LVL_1,
+			 "Duplicate notification received - index 0x%x!!\n",
+			 cq_index);
+		WARN_ON(1);
+	}
+
+	*pwritables = *pwritables + writables;
+	return 0;
+}
+
+static unsigned int hwi_free_async_msg(struct beiscsi_hba *phba,
+				       unsigned int cri)
+{
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_async_pdu_context *pasync_ctx;
+	struct async_pdu_handle *pasync_handle, *tmp_handle;
+	struct list_head *plist;
+	unsigned int i = 0;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+
+	plist  = &pasync_ctx->async_entry[cri].wait_queue.list;
+
+	list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) {
+		list_del(&pasync_handle->link);
+
+		if (i == 0) {
+			list_add_tail(&pasync_handle->link,
+				      &pasync_ctx->async_header.free_list);
+			pasync_ctx->async_header.free_entries++;
+			i++;
+		} else {
+			list_add_tail(&pasync_handle->link,
+				      &pasync_ctx->async_data.free_list);
+			pasync_ctx->async_data.free_entries++;
+			i++;
+		}
+	}
+
+	INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list);
+	pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0;
+	pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0;
+	return 0;
+}
+
+static struct phys_addr *
+hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx,
+		     unsigned int is_header, unsigned int host_write_ptr)
+{
+	struct phys_addr *pasync_sge = NULL;
+
+	if (is_header)
+		pasync_sge = pasync_ctx->async_header.ring_base;
+	else
+		pasync_sge = pasync_ctx->async_data.ring_base;
+
+	return pasync_sge + host_write_ptr;
+}
+
+static void hwi_post_async_buffers(struct beiscsi_hba *phba,
+				   unsigned int is_header)
+{
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_async_pdu_context *pasync_ctx;
+	struct async_pdu_handle *pasync_handle;
+	struct list_head *pfree_link, *pbusy_list;
+	struct phys_addr *pasync_sge;
+	unsigned int ring_id, num_entries;
+	unsigned int host_write_num;
+	unsigned int writables;
+	unsigned int i = 0;
+	u32 doorbell = 0;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+
+	if (is_header) {
+		num_entries = pasync_ctx->async_header.num_entries;
+		writables = min(pasync_ctx->async_header.writables,
+				pasync_ctx->async_header.free_entries);
+		pfree_link = pasync_ctx->async_header.free_list.next;
+		host_write_num = pasync_ctx->async_header.host_write_ptr;
+		ring_id = phwi_ctrlr->default_pdu_hdr.id;
+	} else {
+		num_entries = pasync_ctx->async_data.num_entries;
+		writables = min(pasync_ctx->async_data.writables,
+				pasync_ctx->async_data.free_entries);
+		pfree_link = pasync_ctx->async_data.free_list.next;
+		host_write_num = pasync_ctx->async_data.host_write_ptr;
+		ring_id = phwi_ctrlr->default_pdu_data.id;
+	}
+
+	writables = (writables / 8) * 8;
+	if (writables) {
+		for (i = 0; i < writables; i++) {
+			pbusy_list =
+			    hwi_get_async_busy_list(pasync_ctx, is_header,
+						    host_write_num);
+			pasync_handle =
+			    list_entry(pfree_link, struct async_pdu_handle,
+								link);
+			WARN_ON(!pasync_handle);
+			pasync_handle->consumed = 0;
+
+			pfree_link = pfree_link->next;
+
+			pasync_sge = hwi_get_ring_address(pasync_ctx,
+						is_header, host_write_num);
+
+			pasync_sge->hi = pasync_handle->pa.u.a32.address_lo;
+			pasync_sge->lo = pasync_handle->pa.u.a32.address_hi;
+
+			list_move(&pasync_handle->link, pbusy_list);
+
+			host_write_num++;
+			host_write_num = host_write_num % num_entries;
+		}
+
+		if (is_header) {
+			pasync_ctx->async_header.host_write_ptr =
+							host_write_num;
+			pasync_ctx->async_header.free_entries -= writables;
+			pasync_ctx->async_header.writables -= writables;
+			pasync_ctx->async_header.busy_entries += writables;
+		} else {
+			pasync_ctx->async_data.host_write_ptr = host_write_num;
+			pasync_ctx->async_data.free_entries -= writables;
+			pasync_ctx->async_data.writables -= writables;
+			pasync_ctx->async_data.busy_entries += writables;
+		}
+
+		doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK;
+		doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT;
+		doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT;
+		doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK)
+					<< DB_DEF_PDU_CQPROC_SHIFT;
+
+		iowrite32(doorbell, phba->db_va + DB_RXULP0_OFFSET);
+	}
+}
+
+static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba,
+					 struct beiscsi_conn *beiscsi_conn,
+					 struct i_t_dpdu_cqe *pdpdu_cqe)
+{
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_async_pdu_context *pasync_ctx;
+	struct async_pdu_handle *pasync_handle = NULL;
+	unsigned int cq_index = -1;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+
+	pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
+					     pdpdu_cqe, &cq_index);
+	BUG_ON(pasync_handle->is_header != 0);
+	if (pasync_handle->consumed == 0)
+		hwi_update_async_writables(pasync_ctx, pasync_handle->is_header,
+					   cq_index);
+
+	hwi_free_async_msg(phba, pasync_handle->cri);
+	hwi_post_async_buffers(phba, pasync_handle->is_header);
+}
+
+static unsigned int
+hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn,
+		  struct beiscsi_hba *phba,
+		  struct hwi_async_pdu_context *pasync_ctx, unsigned short cri)
+{
+	struct list_head *plist;
+	struct async_pdu_handle *pasync_handle;
+	void *phdr = NULL;
+	unsigned int hdr_len = 0, buf_len = 0;
+	unsigned int status, index = 0, offset = 0;
+	void *pfirst_buffer = NULL;
+	unsigned int num_buf = 0;
+
+	plist = &pasync_ctx->async_entry[cri].wait_queue.list;
+
+	list_for_each_entry(pasync_handle, plist, link) {
+		if (index == 0) {
+			phdr = pasync_handle->pbuffer;
+			hdr_len = pasync_handle->buffer_len;
+		} else {
+			buf_len = pasync_handle->buffer_len;
+			if (!num_buf) {
+				pfirst_buffer = pasync_handle->pbuffer;
+				num_buf++;
+			}
+			memcpy(pfirst_buffer + offset,
+			       pasync_handle->pbuffer, buf_len);
+			offset = buf_len;
+		}
+		index++;
+	}
+
+	status = beiscsi_process_async_pdu(beiscsi_conn, phba,
+					   beiscsi_conn->beiscsi_conn_cid,
+					   phdr, hdr_len, pfirst_buffer,
+					   buf_len);
+
+	if (status == 0)
+		hwi_free_async_msg(phba, cri);
+	return 0;
+}
+
+static unsigned int
+hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn,
+		     struct beiscsi_hba *phba,
+		     struct async_pdu_handle *pasync_handle)
+{
+	struct hwi_async_pdu_context *pasync_ctx;
+	struct hwi_controller *phwi_ctrlr;
+	unsigned int bytes_needed = 0, status = 0;
+	unsigned short cri = pasync_handle->cri;
+	struct pdu_base *ppdu;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+
+	list_del(&pasync_handle->link);
+	if (pasync_handle->is_header) {
+		pasync_ctx->async_header.busy_entries--;
+		if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
+			hwi_free_async_msg(phba, cri);
+			BUG();
+		}
+
+		pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0;
+		pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1;
+		pasync_ctx->async_entry[cri].wait_queue.hdr_len =
+				(unsigned short)pasync_handle->buffer_len;
+		list_add_tail(&pasync_handle->link,
+			      &pasync_ctx->async_entry[cri].wait_queue.list);
+
+		ppdu = pasync_handle->pbuffer;
+		bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base,
+			data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) &
+			0xFFFF0000) | ((be16_to_cpu((ppdu->
+			dw[offsetof(struct amap_pdu_base, data_len_lo) / 32]
+			& PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF));
+
+		if (status == 0) {
+			pasync_ctx->async_entry[cri].wait_queue.bytes_needed =
+			    bytes_needed;
+
+			if (bytes_needed == 0)
+				status = hwi_fwd_async_msg(beiscsi_conn, phba,
+							   pasync_ctx, cri);
+		}
+	} else {
+		pasync_ctx->async_data.busy_entries--;
+		if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
+			list_add_tail(&pasync_handle->link,
+				      &pasync_ctx->async_entry[cri].wait_queue.
+				      list);
+			pasync_ctx->async_entry[cri].wait_queue.
+				bytes_received +=
+				(unsigned short)pasync_handle->buffer_len;
+
+			if (pasync_ctx->async_entry[cri].wait_queue.
+			    bytes_received >=
+			    pasync_ctx->async_entry[cri].wait_queue.
+			    bytes_needed)
+				status = hwi_fwd_async_msg(beiscsi_conn, phba,
+							   pasync_ctx, cri);
+		}
+	}
+	return status;
+}
+
+static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn,
+					 struct beiscsi_hba *phba,
+					 struct i_t_dpdu_cqe *pdpdu_cqe)
+{
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_async_pdu_context *pasync_ctx;
+	struct async_pdu_handle *pasync_handle = NULL;
+	unsigned int cq_index = -1;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+	pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
+					     pdpdu_cqe, &cq_index);
+
+	if (pasync_handle->consumed == 0)
+		hwi_update_async_writables(pasync_ctx, pasync_handle->is_header,
+					   cq_index);
+	hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle);
+	hwi_post_async_buffers(phba, pasync_handle->is_header);
+}
+
+static unsigned int beiscsi_process_cq(struct beiscsi_hba *phba)
+{
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_context_memory *phwi_context;
+	struct be_queue_info *cq;
+	struct sol_cqe *sol;
+	struct dmsg_cqe *dmsg;
+	unsigned int num_processed = 0;
+	unsigned int tot_nump = 0;
+	struct beiscsi_conn *beiscsi_conn;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	phwi_context = phwi_ctrlr->phwi_ctxt;
+	cq = &phwi_context->be_cq;
+	sol = queue_tail_node(cq);
+
+	while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] &
+	       CQE_VALID_MASK) {
+		be_dws_le_to_cpu(sol, sizeof(struct sol_cqe));
+
+		beiscsi_conn = phba->conn_table[(u32) (sol->
+				 dw[offsetof(struct amap_sol_cqe, cid) / 32] &
+				 SOL_CID_MASK) >> 6];
+
+		if (!beiscsi_conn || !beiscsi_conn->ep) {
+			shost_printk(KERN_WARNING, phba->shost,
+				     "Connection table empty for cid = %d\n",
+				     (u32)(sol->dw[offsetof(struct amap_sol_cqe,
+				     cid) / 32] & SOL_CID_MASK) >> 6);
+			return 0;
+		}
+
+		if (num_processed >= 32) {
+			hwi_ring_cq_db(phba, phwi_context->be_cq.id,
+					num_processed, 0, 0);
+			tot_nump += num_processed;
+			num_processed = 0;
+		}
+
+		switch ((u32) sol->dw[offsetof(struct amap_sol_cqe, code) /
+			32] & CQE_CODE_MASK) {
+		case SOL_CMD_COMPLETE:
+			hwi_complete_cmd(beiscsi_conn, phba, sol);
+			break;
+		case DRIVERMSG_NOTIFY:
+			SE_DEBUG(DBG_LVL_8, "Received DRIVERMSG_NOTIFY \n");
+			dmsg = (struct dmsg_cqe *)sol;
+			hwi_complete_drvr_msgs(beiscsi_conn, phba, sol);
+			break;
+		case UNSOL_HDR_NOTIFY:
+		case UNSOL_DATA_NOTIFY:
+			SE_DEBUG(DBG_LVL_8, "Received UNSOL_HDR/DATA_NOTIFY\n");
+			hwi_process_default_pdu_ring(beiscsi_conn, phba,
+					     (struct i_t_dpdu_cqe *)sol);
+			break;
+		case CXN_INVALIDATE_INDEX_NOTIFY:
+		case CMD_INVALIDATED_NOTIFY:
+		case CXN_INVALIDATE_NOTIFY:
+			SE_DEBUG(DBG_LVL_1,
+				 "Ignoring CQ Error notification for cmd/cxn"
+				 "invalidate\n");
+			break;
+		case SOL_CMD_KILLED_DATA_DIGEST_ERR:
+		case CMD_KILLED_INVALID_STATSN_RCVD:
+		case CMD_KILLED_INVALID_R2T_RCVD:
+		case CMD_CXN_KILLED_LUN_INVALID:
+		case CMD_CXN_KILLED_ICD_INVALID:
+		case CMD_CXN_KILLED_ITT_INVALID:
+		case CMD_CXN_KILLED_SEQ_OUTOFORDER:
+		case CMD_CXN_KILLED_INVALID_DATASN_RCVD:
+			SE_DEBUG(DBG_LVL_1,
+				 "CQ Error notification for cmd.. "
+				 "code %d cid 0x%x\n",
+				 sol->dw[offsetof(struct amap_sol_cqe, code) /
+				 32] & CQE_CODE_MASK,
+				 (sol->dw[offsetof(struct amap_sol_cqe, cid) /
+				 32] & SOL_CID_MASK));
+			break;
+		case UNSOL_DATA_DIGEST_ERROR_NOTIFY:
+			SE_DEBUG(DBG_LVL_1,
+				 "Digest error on def pdu ring, dropping..\n");
+			hwi_flush_default_pdu_buffer(phba, beiscsi_conn,
+					     (struct i_t_dpdu_cqe *) sol);
+			break;
+		case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL:
+		case CXN_KILLED_BURST_LEN_MISMATCH:
+		case CXN_KILLED_AHS_RCVD:
+		case CXN_KILLED_HDR_DIGEST_ERR:
+		case CXN_KILLED_UNKNOWN_HDR:
+		case CXN_KILLED_STALE_ITT_TTT_RCVD:
+		case CXN_KILLED_INVALID_ITT_TTT_RCVD:
+		case CXN_KILLED_TIMED_OUT:
+		case CXN_KILLED_FIN_RCVD:
+		case CXN_KILLED_BAD_UNSOL_PDU_RCVD:
+		case CXN_KILLED_BAD_WRB_INDEX_ERROR:
+		case CXN_KILLED_OVER_RUN_RESIDUAL:
+		case CXN_KILLED_UNDER_RUN_RESIDUAL:
+		case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN:
+			SE_DEBUG(DBG_LVL_1, "CQ Error %d, resetting CID "
+				 "0x%x...\n",
+				 sol->dw[offsetof(struct amap_sol_cqe, code) /
+				 32] & CQE_CODE_MASK,
+				 sol->dw[offsetof(struct amap_sol_cqe, cid) /
+				 32] & CQE_CID_MASK);
+			iscsi_conn_failure(beiscsi_conn->conn,
+					   ISCSI_ERR_CONN_FAILED);
+			break;
+		case CXN_KILLED_RST_SENT:
+		case CXN_KILLED_RST_RCVD:
+			SE_DEBUG(DBG_LVL_1, "CQ Error %d, reset received/sent "
+				 "on CID 0x%x...\n",
+				 sol->dw[offsetof(struct amap_sol_cqe, code) /
+				 32] & CQE_CODE_MASK,
+				 sol->dw[offsetof(struct amap_sol_cqe, cid) /
+				 32] & CQE_CID_MASK);
+			iscsi_conn_failure(beiscsi_conn->conn,
+					   ISCSI_ERR_CONN_FAILED);
+			break;
+		default:
+			SE_DEBUG(DBG_LVL_1, "CQ Error Invalid code= %d "
+				 "received on CID 0x%x...\n",
+				 sol->dw[offsetof(struct amap_sol_cqe, code) /
+				 32] & CQE_CODE_MASK,
+				 sol->dw[offsetof(struct amap_sol_cqe, cid) /
+				 32] & CQE_CID_MASK);
+			break;
+		}
+
+		AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0);
+		queue_tail_inc(cq);
+		sol = queue_tail_node(cq);
+		num_processed++;
+	}
+
+	if (num_processed > 0) {
+		tot_nump += num_processed;
+		hwi_ring_cq_db(phba, phwi_context->be_cq.id, num_processed,
+			       1, 0);
+	}
+	return tot_nump;
+}
+
+static void beiscsi_process_all_cqs(struct work_struct *work)
+{
+	unsigned long flags;
+	struct beiscsi_hba *phba =
+	    container_of(work, struct beiscsi_hba, work_cqs);
+
+	if (phba->todo_mcc_cq) {
+		spin_lock_irqsave(&phba->isr_lock, flags);
+		phba->todo_mcc_cq = 0;
+		spin_unlock_irqrestore(&phba->isr_lock, flags);
+		SE_DEBUG(DBG_LVL_1, "MCC Interrupt Not expected \n");
+	}
+
+	if (phba->todo_cq) {
+		spin_lock_irqsave(&phba->isr_lock, flags);
+		phba->todo_cq = 0;
+		spin_unlock_irqrestore(&phba->isr_lock, flags);
+		beiscsi_process_cq(phba);
+	}
+}
+
+static int be_iopoll(struct blk_iopoll *iop, int budget)
+{
+	static unsigned int ret;
+	struct beiscsi_hba *phba;
+
+	phba = container_of(iop, struct beiscsi_hba, iopoll);
+
+	ret = beiscsi_process_cq(phba);
+	if (ret < budget) {
+		struct hwi_controller *phwi_ctrlr;
+		struct hwi_context_memory *phwi_context;
+
+		phwi_ctrlr = phba->phwi_ctrlr;
+		phwi_context = phwi_ctrlr->phwi_ctxt;
+		blk_iopoll_complete(iop);
+		hwi_ring_eq_db(phba, phwi_context->be_eq.q.id, 0,
+							0, 1, 1);
+	}
+	return ret;
+}
+
+static void
+hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg,
+	      unsigned int num_sg, struct beiscsi_io_task *io_task)
+{
+	struct iscsi_sge *psgl;
+	unsigned short sg_len, index;
+	unsigned int sge_len = 0;
+	unsigned long long addr;
+	struct scatterlist *l_sg;
+	unsigned int offset;
+
+	AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb,
+				      io_task->bhs_pa.u.a32.address_lo);
+	AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb,
+				      io_task->bhs_pa.u.a32.address_hi);
+
+	l_sg = sg;
+	for (index = 0; (index < num_sg) && (index < 2); index++, sg_next(sg)) {
+		if (index == 0) {
+			sg_len = sg_dma_len(sg);
+			addr = (u64) sg_dma_address(sg);
+			AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb,
+							(addr & 0xFFFFFFFF));
+			AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb,
+							(addr >> 32));
+			AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb,
+							sg_len);
+			sge_len = sg_len;
+			AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
+							1);
+		} else {
+			AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
+							0);
+			AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset,
+							pwrb, sge_len);
+			sg_len = sg_dma_len(sg);
+			addr = (u64) sg_dma_address(sg);
+			AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb,
+							(addr & 0xFFFFFFFF));
+			AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb,
+							(addr >> 32));
+			AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb,
+							sg_len);
+		}
+	}
+	psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
+	memset(psgl, 0, sizeof(*psgl) * BE2_SGE);
+
+	AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2);
+
+	AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+			io_task->bhs_pa.u.a32.address_hi);
+	AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+			io_task->bhs_pa.u.a32.address_lo);
+
+	if (num_sg == 2)
+		AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb, 1);
+	sg = l_sg;
+	psgl++;
+	psgl++;
+	offset = 0;
+	for (index = 0; index < num_sg; index++, sg_next(sg), psgl++) {
+		sg_len = sg_dma_len(sg);
+		addr = (u64) sg_dma_address(sg);
+		AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+						(addr & 0xFFFFFFFF));
+		AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+						(addr >> 32));
+		AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len);
+		AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset);
+		AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
+		offset += sg_len;
+	}
+	psgl--;
+	AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
+}
+
+static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task)
+{
+	struct iscsi_sge *psgl;
+	unsigned long long addr;
+	struct beiscsi_io_task *io_task = task->dd_data;
+	struct beiscsi_conn *beiscsi_conn = io_task->conn;
+	struct beiscsi_hba *phba = beiscsi_conn->phba;
+
+	io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2;
+	AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb,
+				io_task->bhs_pa.u.a32.address_lo);
+	AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb,
+				io_task->bhs_pa.u.a32.address_hi);
+
+	if (task->data) {
+		if (task->data_count) {
+			AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
+			addr = (u64) pci_map_single(phba->pcidev,
+						    task->data,
+						    task->data_count, 1);
+		} else {
+			AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
+			addr = 0;
+		}
+		AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb,
+						(addr & 0xFFFFFFFF));
+		AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb,
+						(addr >> 32));
+		AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb,
+						task->data_count);
+
+		AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1);
+	} else {
+		AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
+		addr = 0;
+	}
+
+	psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
+
+	AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len);
+
+	AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+		      io_task->bhs_pa.u.a32.address_hi);
+	AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+		      io_task->bhs_pa.u.a32.address_lo);
+	if (task->data) {
+		psgl++;
+		AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0);
+		AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0);
+		AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0);
+		AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0);
+		AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0);
+		AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
+
+		psgl++;
+		if (task->data) {
+			AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
+						(addr & 0xFFFFFFFF));
+			AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
+						(addr >> 32));
+		}
+		AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106);
+	}
+	AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
+}
+
+static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
+{
+	unsigned int num_cq_pages, num_eq_pages, num_async_pdu_buf_pages;
+	unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn;
+	unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages;
+
+	num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \
+				      sizeof(struct sol_cqe));
+	num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \
+				      sizeof(struct be_eq_entry));
+	num_async_pdu_buf_pages =
+			PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
+				       phba->params.defpdu_hdr_sz);
+	num_async_pdu_buf_sgl_pages =
+			PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
+				       sizeof(struct phys_addr));
+	num_async_pdu_data_pages =
+			PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
+				       phba->params.defpdu_data_sz);
+	num_async_pdu_data_sgl_pages =
+			PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
+				       sizeof(struct phys_addr));
+
+	phba->params.hwi_ws_sz = sizeof(struct hwi_controller);
+
+	phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 *
+						 BE_ISCSI_PDU_HEADER_SIZE;
+	phba->mem_req[HWI_MEM_ADDN_CONTEXT] =
+					    sizeof(struct hwi_context_memory);
+
+	phba->mem_req[HWI_MEM_CQ] = num_cq_pages * PAGE_SIZE;
+	phba->mem_req[HWI_MEM_EQ] = num_eq_pages * PAGE_SIZE;
+
+	phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb)
+	    * (phba->params.wrbs_per_cxn)
+	    * phba->params.cxns_per_ctrl;
+	wrb_sz_per_cxn =  sizeof(struct wrb_handle) *
+				 (phba->params.wrbs_per_cxn);
+	phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) *
+				phba->params.cxns_per_ctrl);
+
+	phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) *
+		phba->params.icds_per_ctrl;
+	phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) *
+		phba->params.num_sge_per_io * phba->params.icds_per_ctrl;
+
+	phba->mem_req[HWI_MEM_ASYNC_HEADER_BUF] =
+		num_async_pdu_buf_pages * PAGE_SIZE;
+	phba->mem_req[HWI_MEM_ASYNC_DATA_BUF] =
+		num_async_pdu_data_pages * PAGE_SIZE;
+	phba->mem_req[HWI_MEM_ASYNC_HEADER_RING] =
+		num_async_pdu_buf_sgl_pages * PAGE_SIZE;
+	phba->mem_req[HWI_MEM_ASYNC_DATA_RING] =
+		num_async_pdu_data_sgl_pages * PAGE_SIZE;
+	phba->mem_req[HWI_MEM_ASYNC_HEADER_HANDLE] =
+		phba->params.asyncpdus_per_ctrl *
+		sizeof(struct async_pdu_handle);
+	phba->mem_req[HWI_MEM_ASYNC_DATA_HANDLE] =
+		phba->params.asyncpdus_per_ctrl *
+		sizeof(struct async_pdu_handle);
+	phba->mem_req[HWI_MEM_ASYNC_PDU_CONTEXT] =
+		sizeof(struct hwi_async_pdu_context) +
+		(phba->params.cxns_per_ctrl * sizeof(struct hwi_async_entry));
+}
+
+static int beiscsi_alloc_mem(struct beiscsi_hba *phba)
+{
+	struct be_mem_descriptor *mem_descr;
+	dma_addr_t bus_add;
+	struct mem_array *mem_arr, *mem_arr_orig;
+	unsigned int i, j, alloc_size, curr_alloc_size;
+
+	phba->phwi_ctrlr = kmalloc(phba->params.hwi_ws_sz, GFP_KERNEL);
+	if (!phba->phwi_ctrlr)
+		return -ENOMEM;
+
+	phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr),
+				 GFP_KERNEL);
+	if (!phba->init_mem) {
+		kfree(phba->phwi_ctrlr);
+		return -ENOMEM;
+	}
+
+	mem_arr_orig = kmalloc(sizeof(*mem_arr_orig) * BEISCSI_MAX_FRAGS_INIT,
+			       GFP_KERNEL);
+	if (!mem_arr_orig) {
+		kfree(phba->init_mem);
+		kfree(phba->phwi_ctrlr);
+		return -ENOMEM;
+	}
+
+	mem_descr = phba->init_mem;
+	for (i = 0; i < SE_MEM_MAX; i++) {
+		j = 0;
+		mem_arr = mem_arr_orig;
+		alloc_size = phba->mem_req[i];
+		memset(mem_arr, 0, sizeof(struct mem_array) *
+		       BEISCSI_MAX_FRAGS_INIT);
+		curr_alloc_size = min(be_max_phys_size * 1024, alloc_size);
+		do {
+			mem_arr->virtual_address = pci_alloc_consistent(
+							phba->pcidev,
+							curr_alloc_size,
+							&bus_add);
+			if (!mem_arr->virtual_address) {
+				if (curr_alloc_size <= BE_MIN_MEM_SIZE)
+					goto free_mem;
+				if (curr_alloc_size -
+					rounddown_pow_of_two(curr_alloc_size))
+					curr_alloc_size = rounddown_pow_of_two
+							     (curr_alloc_size);
+				else
+					curr_alloc_size = curr_alloc_size / 2;
+			} else {
+				mem_arr->bus_address.u.
+				    a64.address = (__u64) bus_add;
+				mem_arr->size = curr_alloc_size;
+				alloc_size -= curr_alloc_size;
+				curr_alloc_size = min(be_max_phys_size *
+						      1024, alloc_size);
+				j++;
+				mem_arr++;
+			}
+		} while (alloc_size);
+		mem_descr->num_elements = j;
+		mem_descr->size_in_bytes = phba->mem_req[i];
+		mem_descr->mem_array = kmalloc(sizeof(*mem_arr) * j,
+					       GFP_KERNEL);
+		if (!mem_descr->mem_array)
+			goto free_mem;
+
+		memcpy(mem_descr->mem_array, mem_arr_orig,
+		       sizeof(struct mem_array) * j);
+		mem_descr++;
+	}
+	kfree(mem_arr_orig);
+	return 0;
+free_mem:
+	mem_descr->num_elements = j;
+	while ((i) || (j)) {
+		for (j = mem_descr->num_elements; j > 0; j--) {
+			pci_free_consistent(phba->pcidev,
+					    mem_descr->mem_array[j - 1].size,
+					    mem_descr->mem_array[j - 1].
+					    virtual_address,
+					    mem_descr->mem_array[j - 1].
+					    bus_address.u.a64.address);
+		}
+		if (i) {
+			i--;
+			kfree(mem_descr->mem_array);
+			mem_descr--;
+		}
+	}
+	kfree(mem_arr_orig);
+	kfree(phba->init_mem);
+	kfree(phba->phwi_ctrlr);
+	return -ENOMEM;
+}
+
+static int beiscsi_get_memory(struct beiscsi_hba *phba)
+{
+	beiscsi_find_mem_req(phba);
+	return beiscsi_alloc_mem(phba);
+}
+
+static void iscsi_init_global_templates(struct beiscsi_hba *phba)
+{
+	struct pdu_data_out *pdata_out;
+	struct pdu_nop_out *pnop_out;
+	struct be_mem_descriptor *mem_descr;
+
+	mem_descr = phba->init_mem;
+	mem_descr += ISCSI_MEM_GLOBAL_HEADER;
+	pdata_out =
+	    (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address;
+	memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE);
+
+	AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out,
+		      IIOC_SCSI_DATA);
+
+	pnop_out =
+	    (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0].
+				   virtual_address + BE_ISCSI_PDU_HEADER_SIZE);
+
+	memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE);
+	AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF);
+	AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1);
+	AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0);
+}
+
+static void beiscsi_init_wrb_handle(struct beiscsi_hba *phba)
+{
+	struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb;
+	struct wrb_handle *pwrb_handle;
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_wrb_context *pwrb_context;
+	struct iscsi_wrb *pwrb;
+	unsigned int num_cxn_wrbh;
+	unsigned int num_cxn_wrb, j, idx, index;
+
+	mem_descr_wrbh = phba->init_mem;
+	mem_descr_wrbh += HWI_MEM_WRBH;
+
+	mem_descr_wrb = phba->init_mem;
+	mem_descr_wrb += HWI_MEM_WRB;
+
+	idx = 0;
+	pwrb_handle = mem_descr_wrbh->mem_array[idx].virtual_address;
+	num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) /
+			((sizeof(struct wrb_handle)) *
+			 phba->params.wrbs_per_cxn));
+	phwi_ctrlr = phba->phwi_ctrlr;
+
+	for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) {
+		pwrb_context = &phwi_ctrlr->wrb_context[index];
+		SE_DEBUG(DBG_LVL_8, "cid=%d pwrb_context=%p \n", index,
+						pwrb_context);
+		pwrb_context->pwrb_handle_base =
+				kzalloc(sizeof(struct wrb_handle *) *
+					phba->params.wrbs_per_cxn, GFP_KERNEL);
+		pwrb_context->pwrb_handle_basestd =
+				kzalloc(sizeof(struct wrb_handle *) *
+					phba->params.wrbs_per_cxn, GFP_KERNEL);
+		if (num_cxn_wrbh) {
+			pwrb_context->alloc_index = 0;
+			pwrb_context->wrb_handles_available = 0;
+			for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
+				pwrb_context->pwrb_handle_base[j] = pwrb_handle;
+				pwrb_context->pwrb_handle_basestd[j] =
+								pwrb_handle;
+				pwrb_context->wrb_handles_available++;
+				pwrb_handle++;
+			}
+			pwrb_context->free_index = 0;
+			num_cxn_wrbh--;
+		} else {
+			idx++;
+			pwrb_handle =
+			    mem_descr_wrbh->mem_array[idx].virtual_address;
+			num_cxn_wrbh =
+			    ((mem_descr_wrbh->mem_array[idx].size) /
+			     ((sizeof(struct wrb_handle)) *
+			      phba->params.wrbs_per_cxn));
+			pwrb_context->alloc_index = 0;
+			for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
+				pwrb_context->pwrb_handle_base[j] = pwrb_handle;
+				pwrb_context->pwrb_handle_basestd[j] =
+				    pwrb_handle;
+				pwrb_context->wrb_handles_available++;
+				pwrb_handle++;
+			}
+			pwrb_context->free_index = 0;
+			num_cxn_wrbh--;
+		}
+	}
+	idx = 0;
+	pwrb = mem_descr_wrb->mem_array[idx].virtual_address;
+	num_cxn_wrb =
+	    ((mem_descr_wrb->mem_array[idx].size) / (sizeof(struct iscsi_wrb)) *
+	     phba->params.wrbs_per_cxn);
+
+	for (index = 0; index < phba->params.cxns_per_ctrl; index += 2) {
+		pwrb_context = &phwi_ctrlr->wrb_context[index];
+		if (num_cxn_wrb) {
+			for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
+				pwrb_handle = pwrb_context->pwrb_handle_base[j];
+				pwrb_handle->pwrb = pwrb;
+				pwrb++;
+			}
+			num_cxn_wrb--;
+		} else {
+			idx++;
+			pwrb = mem_descr_wrb->mem_array[idx].virtual_address;
+			num_cxn_wrb = ((mem_descr_wrb->mem_array[idx].size) /
+					(sizeof(struct iscsi_wrb)) *
+					phba->params.wrbs_per_cxn);
+			for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
+				pwrb_handle = pwrb_context->pwrb_handle_base[j];
+				pwrb_handle->pwrb = pwrb;
+				pwrb++;
+			}
+			num_cxn_wrb--;
+		}
+	}
+}
+
+static void hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
+{
+	struct hwi_controller *phwi_ctrlr;
+	struct hba_parameters *p = &phba->params;
+	struct hwi_async_pdu_context *pasync_ctx;
+	struct async_pdu_handle *pasync_header_h, *pasync_data_h;
+	unsigned int index;
+	struct be_mem_descriptor *mem_descr;
+
+	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+	mem_descr += HWI_MEM_ASYNC_PDU_CONTEXT;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	phwi_ctrlr->phwi_ctxt->pasync_ctx = (struct hwi_async_pdu_context *)
+				mem_descr->mem_array[0].virtual_address;
+	pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx;
+	memset(pasync_ctx, 0, sizeof(*pasync_ctx));
+
+	pasync_ctx->async_header.num_entries = p->asyncpdus_per_ctrl;
+	pasync_ctx->async_header.buffer_size = p->defpdu_hdr_sz;
+	pasync_ctx->async_data.buffer_size = p->defpdu_data_sz;
+	pasync_ctx->async_data.num_entries = p->asyncpdus_per_ctrl;
+
+	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+	mem_descr += HWI_MEM_ASYNC_HEADER_BUF;
+	if (mem_descr->mem_array[0].virtual_address) {
+		SE_DEBUG(DBG_LVL_8,
+			 "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_BUF"
+			 "va=%p \n", mem_descr->mem_array[0].virtual_address);
+	} else
+		shost_printk(KERN_WARNING, phba->shost,
+			     "No Virtual address \n");
+
+	pasync_ctx->async_header.va_base =
+			mem_descr->mem_array[0].virtual_address;
+
+	pasync_ctx->async_header.pa_base.u.a64.address =
+			mem_descr->mem_array[0].bus_address.u.a64.address;
+
+	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+	mem_descr += HWI_MEM_ASYNC_HEADER_RING;
+	if (mem_descr->mem_array[0].virtual_address) {
+		SE_DEBUG(DBG_LVL_8,
+			 "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_RING"
+			 "va=%p \n", mem_descr->mem_array[0].virtual_address);
+	} else
+		shost_printk(KERN_WARNING, phba->shost,
+			    "No Virtual address \n");
+	pasync_ctx->async_header.ring_base =
+			mem_descr->mem_array[0].virtual_address;
+
+	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+	mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE;
+	if (mem_descr->mem_array[0].virtual_address) {
+		SE_DEBUG(DBG_LVL_8,
+			 "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_HEADER_HANDLE"
+			 "va=%p \n", mem_descr->mem_array[0].virtual_address);
+	} else
+		shost_printk(KERN_WARNING, phba->shost,
+			    "No Virtual address \n");
+
+	pasync_ctx->async_header.handle_base =
+			mem_descr->mem_array[0].virtual_address;
+	pasync_ctx->async_header.writables = 0;
+	INIT_LIST_HEAD(&pasync_ctx->async_header.free_list);
+
+	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+	mem_descr += HWI_MEM_ASYNC_DATA_BUF;
+	if (mem_descr->mem_array[0].virtual_address) {
+		SE_DEBUG(DBG_LVL_8,
+			 "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_BUF"
+			 "va=%p \n", mem_descr->mem_array[0].virtual_address);
+	} else
+		shost_printk(KERN_WARNING, phba->shost,
+			    "No Virtual address \n");
+	pasync_ctx->async_data.va_base =
+			mem_descr->mem_array[0].virtual_address;
+	pasync_ctx->async_data.pa_base.u.a64.address =
+			mem_descr->mem_array[0].bus_address.u.a64.address;
+
+	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+	mem_descr += HWI_MEM_ASYNC_DATA_RING;
+	if (mem_descr->mem_array[0].virtual_address) {
+		SE_DEBUG(DBG_LVL_8,
+			 "hwi_init_async_pdu_ctx HWI_MEM_ASYNC_DATA_RING"
+			 "va=%p \n", mem_descr->mem_array[0].virtual_address);
+	} else
+		shost_printk(KERN_WARNING, phba->shost,
+			     "No Virtual address \n");
+
+	pasync_ctx->async_data.ring_base =
+			mem_descr->mem_array[0].virtual_address;
+
+	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+	mem_descr += HWI_MEM_ASYNC_DATA_HANDLE;
+	if (!mem_descr->mem_array[0].virtual_address)
+		shost_printk(KERN_WARNING, phba->shost,
+			    "No Virtual address \n");
+
+	pasync_ctx->async_data.handle_base =
+			mem_descr->mem_array[0].virtual_address;
+	pasync_ctx->async_data.writables = 0;
+	INIT_LIST_HEAD(&pasync_ctx->async_data.free_list);
+
+	pasync_header_h =
+		(struct async_pdu_handle *)pasync_ctx->async_header.handle_base;
+	pasync_data_h =
+		(struct async_pdu_handle *)pasync_ctx->async_data.handle_base;
+
+	for (index = 0; index < p->asyncpdus_per_ctrl; index++) {
+		pasync_header_h->cri = -1;
+		pasync_header_h->index = (char)index;
+		INIT_LIST_HEAD(&pasync_header_h->link);
+		pasync_header_h->pbuffer =
+			(void *)((unsigned long)
+			(pasync_ctx->async_header.va_base) +
+			(p->defpdu_hdr_sz * index));
+
+		pasync_header_h->pa.u.a64.address =
+			pasync_ctx->async_header.pa_base.u.a64.address +
+			(p->defpdu_hdr_sz * index);
+
+		list_add_tail(&pasync_header_h->link,
+				&pasync_ctx->async_header.free_list);
+		pasync_header_h++;
+		pasync_ctx->async_header.free_entries++;
+		pasync_ctx->async_header.writables++;
+
+		INIT_LIST_HEAD(&pasync_ctx->async_entry[index].wait_queue.list);
+		INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
+			       header_busy_list);
+		pasync_data_h->cri = -1;
+		pasync_data_h->index = (char)index;
+		INIT_LIST_HEAD(&pasync_data_h->link);
+		pasync_data_h->pbuffer =
+			(void *)((unsigned long)
+			(pasync_ctx->async_data.va_base) +
+			(p->defpdu_data_sz * index));
+
+		pasync_data_h->pa.u.a64.address =
+		    pasync_ctx->async_data.pa_base.u.a64.address +
+		    (p->defpdu_data_sz * index);
+
+		list_add_tail(&pasync_data_h->link,
+			      &pasync_ctx->async_data.free_list);
+		pasync_data_h++;
+		pasync_ctx->async_data.free_entries++;
+		pasync_ctx->async_data.writables++;
+
+		INIT_LIST_HEAD(&pasync_ctx->async_entry[index].data_busy_list);
+	}
+
+	pasync_ctx->async_header.host_write_ptr = 0;
+	pasync_ctx->async_header.ep_read_ptr = -1;
+	pasync_ctx->async_data.host_write_ptr = 0;
+	pasync_ctx->async_data.ep_read_ptr = -1;
+}
+
+static int
+be_sgl_create_contiguous(void *virtual_address,
+			 u64 physical_address, u32 length,
+			 struct be_dma_mem *sgl)
+{
+	WARN_ON(!virtual_address);
+	WARN_ON(!physical_address);
+	WARN_ON(!length > 0);
+	WARN_ON(!sgl);
+
+	sgl->va = virtual_address;
+	sgl->dma = physical_address;
+	sgl->size = length;
+
+	return 0;
+}
+
+static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl)
+{
+	memset(sgl, 0, sizeof(*sgl));
+}
+
+static void
+hwi_build_be_sgl_arr(struct beiscsi_hba *phba,
+		     struct mem_array *pmem, struct be_dma_mem *sgl)
+{
+	if (sgl->va)
+		be_sgl_destroy_contiguous(sgl);
+
+	be_sgl_create_contiguous(pmem->virtual_address,
+				 pmem->bus_address.u.a64.address,
+				 pmem->size, sgl);
+}
+
+static void
+hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba,
+			   struct mem_array *pmem, struct be_dma_mem *sgl)
+{
+	if (sgl->va)
+		be_sgl_destroy_contiguous(sgl);
+
+	be_sgl_create_contiguous((unsigned char *)pmem->virtual_address,
+				 pmem->bus_address.u.a64.address,
+				 pmem->size, sgl);
+}
+
+static int be_fill_queue(struct be_queue_info *q,
+		u16 len, u16 entry_size, void *vaddress)
+{
+	struct be_dma_mem *mem = &q->dma_mem;
+
+	memset(q, 0, sizeof(*q));
+	q->len = len;
+	q->entry_size = entry_size;
+	mem->size = len * entry_size;
+	mem->va = vaddress;
+	if (!mem->va)
+		return -ENOMEM;
+	memset(mem->va, 0, mem->size);
+	return 0;
+}
+
+static int beiscsi_create_eq(struct beiscsi_hba *phba,
+			     struct hwi_context_memory *phwi_context)
+{
+	unsigned int idx;
+	int ret;
+	struct be_queue_info *eq;
+	struct be_dma_mem *mem;
+	struct be_mem_descriptor *mem_descr;
+	void *eq_vaddress;
+
+	idx = 0;
+	eq = &phwi_context->be_eq.q;
+	mem = &eq->dma_mem;
+	mem_descr = phba->init_mem;
+	mem_descr += HWI_MEM_EQ;
+	eq_vaddress = mem_descr->mem_array[idx].virtual_address;
+
+	ret = be_fill_queue(eq, phba->params.num_eq_entries,
+			    sizeof(struct be_eq_entry), eq_vaddress);
+	if (ret) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "be_fill_queue Failed for EQ \n");
+		return ret;
+	}
+
+	mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
+
+	ret = beiscsi_cmd_eq_create(&phba->ctrl, eq,
+				    phwi_context->be_eq.cur_eqd);
+	if (ret) {
+		shost_printk(KERN_ERR, phba->shost, "beiscsi_cmd_eq_create"
+			     "Failedfor EQ \n");
+		return ret;
+	}
+	SE_DEBUG(DBG_LVL_8, "eq id is %d\n", phwi_context->be_eq.q.id);
+	return 0;
+}
+
+static int beiscsi_create_cq(struct beiscsi_hba *phba,
+			     struct hwi_context_memory *phwi_context)
+{
+	unsigned int idx;
+	int ret;
+	struct be_queue_info *cq, *eq;
+	struct be_dma_mem *mem;
+	struct be_mem_descriptor *mem_descr;
+	void *cq_vaddress;
+
+	idx = 0;
+	cq = &phwi_context->be_cq;
+	eq = &phwi_context->be_eq.q;
+	mem = &cq->dma_mem;
+	mem_descr = phba->init_mem;
+	mem_descr += HWI_MEM_CQ;
+	cq_vaddress = mem_descr->mem_array[idx].virtual_address;
+	ret = be_fill_queue(cq, phba->params.icds_per_ctrl / 2,
+			    sizeof(struct sol_cqe), cq_vaddress);
+	if (ret) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "be_fill_queue Failed for ISCSI CQ \n");
+		return ret;
+	}
+
+	mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
+	ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false, false, 0);
+	if (ret) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "beiscsi_cmd_eq_create Failed for ISCSI CQ \n");
+		return ret;
+	}
+	SE_DEBUG(DBG_LVL_8, "iscsi cq id is %d\n", phwi_context->be_cq.id);
+	SE_DEBUG(DBG_LVL_8, "ISCSI CQ CREATED\n");
+	return 0;
+}
+
+static int
+beiscsi_create_def_hdr(struct beiscsi_hba *phba,
+		       struct hwi_context_memory *phwi_context,
+		       struct hwi_controller *phwi_ctrlr,
+		       unsigned int def_pdu_ring_sz)
+{
+	unsigned int idx;
+	int ret;
+	struct be_queue_info *dq, *cq;
+	struct be_dma_mem *mem;
+	struct be_mem_descriptor *mem_descr;
+	void *dq_vaddress;
+
+	idx = 0;
+	dq = &phwi_context->be_def_hdrq;
+	cq = &phwi_context->be_cq;
+	mem = &dq->dma_mem;
+	mem_descr = phba->init_mem;
+	mem_descr += HWI_MEM_ASYNC_HEADER_RING;
+	dq_vaddress = mem_descr->mem_array[idx].virtual_address;
+	ret = be_fill_queue(dq, mem_descr->mem_array[0].size /
+			    sizeof(struct phys_addr),
+			    sizeof(struct phys_addr), dq_vaddress);
+	if (ret) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "be_fill_queue Failed for DEF PDU HDR\n");
+		return ret;
+	}
+	mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
+	ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq,
+					      def_pdu_ring_sz,
+					      phba->params.defpdu_hdr_sz);
+	if (ret) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "be_cmd_create_default_pdu_queue Failed DEFHDR\n");
+		return ret;
+	}
+	phwi_ctrlr->default_pdu_hdr.id = phwi_context->be_def_hdrq.id;
+	SE_DEBUG(DBG_LVL_8, "iscsi def pdu id is %d\n",
+		 phwi_context->be_def_hdrq.id);
+	hwi_post_async_buffers(phba, 1);
+	return 0;
+}
+
+static int
+beiscsi_create_def_data(struct beiscsi_hba *phba,
+			struct hwi_context_memory *phwi_context,
+			struct hwi_controller *phwi_ctrlr,
+			unsigned int def_pdu_ring_sz)
+{
+	unsigned int idx;
+	int ret;
+	struct be_queue_info *dataq, *cq;
+	struct be_dma_mem *mem;
+	struct be_mem_descriptor *mem_descr;
+	void *dq_vaddress;
+
+	idx = 0;
+	dataq = &phwi_context->be_def_dataq;
+	cq = &phwi_context->be_cq;
+	mem = &dataq->dma_mem;
+	mem_descr = phba->init_mem;
+	mem_descr += HWI_MEM_ASYNC_DATA_RING;
+	dq_vaddress = mem_descr->mem_array[idx].virtual_address;
+	ret = be_fill_queue(dataq, mem_descr->mem_array[0].size /
+			    sizeof(struct phys_addr),
+			    sizeof(struct phys_addr), dq_vaddress);
+	if (ret) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "be_fill_queue Failed for DEF PDU DATA\n");
+		return ret;
+	}
+	mem->dma = mem_descr->mem_array[idx].bus_address.u.a64.address;
+	ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq,
+					      def_pdu_ring_sz,
+					      phba->params.defpdu_data_sz);
+	if (ret) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "be_cmd_create_default_pdu_queue Failed"
+			     " for DEF PDU DATA\n");
+		return ret;
+	}
+	phwi_ctrlr->default_pdu_data.id = phwi_context->be_def_dataq.id;
+	SE_DEBUG(DBG_LVL_8, "iscsi def data id is %d\n",
+		 phwi_context->be_def_dataq.id);
+	hwi_post_async_buffers(phba, 0);
+	SE_DEBUG(DBG_LVL_8, "DEFAULT PDU DATA RING CREATED \n");
+	return 0;
+}
+
+static int
+beiscsi_post_pages(struct beiscsi_hba *phba)
+{
+	struct be_mem_descriptor *mem_descr;
+	struct mem_array *pm_arr;
+	unsigned int page_offset, i;
+	struct be_dma_mem sgl;
+	int status;
+
+	mem_descr = phba->init_mem;
+	mem_descr += HWI_MEM_SGE;
+	pm_arr = mem_descr->mem_array;
+
+	page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io *
+			phba->fw_config.iscsi_icd_start) / PAGE_SIZE;
+	for (i = 0; i < mem_descr->num_elements; i++) {
+		hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
+		status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl,
+						page_offset,
+						(pm_arr->size / PAGE_SIZE));
+		page_offset += pm_arr->size / PAGE_SIZE;
+		if (status != 0) {
+			shost_printk(KERN_ERR, phba->shost,
+				     "post sgl failed.\n");
+			return status;
+		}
+		pm_arr++;
+	}
+	SE_DEBUG(DBG_LVL_8, "POSTED PAGES \n");
+	return 0;
+}
+
+static int
+beiscsi_create_wrb_rings(struct beiscsi_hba *phba,
+			 struct hwi_context_memory *phwi_context,
+			 struct hwi_controller *phwi_ctrlr)
+{
+	unsigned int wrb_mem_index, offset, size, num_wrb_rings;
+	u64 pa_addr_lo;
+	unsigned int idx, num, i;
+	struct mem_array *pwrb_arr;
+	void *wrb_vaddr;
+	struct be_dma_mem sgl;
+	struct be_mem_descriptor *mem_descr;
+	int status;
+
+	idx = 0;
+	mem_descr = phba->init_mem;
+	mem_descr += HWI_MEM_WRB;
+	pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl,
+			   GFP_KERNEL);
+	if (!pwrb_arr) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "Memory alloc failed in create wrb ring.\n");
+		return -ENOMEM;
+	}
+	wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
+	pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address;
+	num_wrb_rings = mem_descr->mem_array[idx].size /
+		(phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb));
+
+	for (num = 0; num < phba->params.cxns_per_ctrl; num++) {
+		if (num_wrb_rings) {
+			pwrb_arr[num].virtual_address = wrb_vaddr;
+			pwrb_arr[num].bus_address.u.a64.address	= pa_addr_lo;
+			pwrb_arr[num].size = phba->params.wrbs_per_cxn *
+					    sizeof(struct iscsi_wrb);
+			wrb_vaddr += pwrb_arr[num].size;
+			pa_addr_lo += pwrb_arr[num].size;
+			num_wrb_rings--;
+		} else {
+			idx++;
+			wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
+			pa_addr_lo = mem_descr->mem_array[idx].\
+					bus_address.u.a64.address;
+			num_wrb_rings = mem_descr->mem_array[idx].size /
+					(phba->params.wrbs_per_cxn *
+					sizeof(struct iscsi_wrb));
+			pwrb_arr[num].virtual_address = wrb_vaddr;
+			pwrb_arr[num].bus_address.u.a64.address\
+						= pa_addr_lo;
+			pwrb_arr[num].size = phba->params.wrbs_per_cxn *
+						 sizeof(struct iscsi_wrb);
+			wrb_vaddr += pwrb_arr[num].size;
+			pa_addr_lo   += pwrb_arr[num].size;
+			num_wrb_rings--;
+		}
+	}
+	for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
+		wrb_mem_index = 0;
+		offset = 0;
+		size = 0;
+
+		hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl);
+		status = be_cmd_wrbq_create(&phba->ctrl, &sgl,
+					    &phwi_context->be_wrbq[i]);
+		if (status != 0) {
+			shost_printk(KERN_ERR, phba->shost,
+				     "wrbq create failed.");
+			return status;
+		}
+		phwi_ctrlr->wrb_context[i].cid = phwi_context->be_wrbq[i].id;
+	}
+	kfree(pwrb_arr);
+	return 0;
+}
+
+static void free_wrb_handles(struct beiscsi_hba *phba)
+{
+	unsigned int index;
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_wrb_context *pwrb_context;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	for (index = 0; index < phba->params.cxns_per_ctrl * 2; index += 2) {
+		pwrb_context = &phwi_ctrlr->wrb_context[index];
+		kfree(pwrb_context->pwrb_handle_base);
+		kfree(pwrb_context->pwrb_handle_basestd);
+	}
+}
+
+static void hwi_cleanup(struct beiscsi_hba *phba)
+{
+	struct be_queue_info *q;
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_context_memory *phwi_context;
+	int i;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	phwi_context = phwi_ctrlr->phwi_ctxt;
+	for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
+		q = &phwi_context->be_wrbq[i];
+		if (q->created)
+			beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ);
+	}
+
+	free_wrb_handles(phba);
+
+	q = &phwi_context->be_def_hdrq;
+	if (q->created)
+		beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+
+	q = &phwi_context->be_def_dataq;
+	if (q->created)
+		beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+
+	beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
+
+	q = &phwi_context->be_cq;
+	if (q->created)
+		beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
+
+	q = &phwi_context->be_eq.q;
+	if (q->created)
+		beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
+}
+
+static int hwi_init_port(struct beiscsi_hba *phba)
+{
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_context_memory *phwi_context;
+	unsigned int def_pdu_ring_sz;
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+	int status;
+
+	def_pdu_ring_sz =
+		phba->params.asyncpdus_per_ctrl * sizeof(struct phys_addr);
+	phwi_ctrlr = phba->phwi_ctrlr;
+
+	phwi_context = phwi_ctrlr->phwi_ctxt;
+	phwi_context->be_eq.max_eqd = 0;
+	phwi_context->be_eq.min_eqd = 0;
+	phwi_context->be_eq.cur_eqd = 64;
+	phwi_context->be_eq.enable_aic = false;
+	be_cmd_fw_initialize(&phba->ctrl);
+	status = beiscsi_create_eq(phba, phwi_context);
+	if (status != 0) {
+		shost_printk(KERN_ERR, phba->shost, "EQ not created \n");
+		goto error;
+	}
+
+	status = mgmt_check_supported_fw(ctrl);
+	if (status != 0) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "Unsupported fw version \n");
+		goto error;
+	}
+
+	status = mgmt_get_fw_config(ctrl, phba);
+	if (status != 0) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "Error getting fw config\n");
+		goto error;
+	}
+
+	status = beiscsi_create_cq(phba, phwi_context);
+	if (status != 0) {
+		shost_printk(KERN_ERR, phba->shost, "CQ not created\n");
+		goto error;
+	}
+
+	status = beiscsi_create_def_hdr(phba, phwi_context, phwi_ctrlr,
+					def_pdu_ring_sz);
+	if (status != 0) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "Default Header not created\n");
+		goto error;
+	}
+
+	status = beiscsi_create_def_data(phba, phwi_context,
+					 phwi_ctrlr, def_pdu_ring_sz);
+	if (status != 0) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "Default Data not created\n");
+		goto error;
+	}
+
+	status = beiscsi_post_pages(phba);
+	if (status != 0) {
+		shost_printk(KERN_ERR, phba->shost, "Post SGL Pages Failed\n");
+		goto error;
+	}
+
+	status = beiscsi_create_wrb_rings(phba,	phwi_context, phwi_ctrlr);
+	if (status != 0) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "WRB Rings not created\n");
+		goto error;
+	}
+
+	SE_DEBUG(DBG_LVL_8, "hwi_init_port success\n");
+	return 0;
+
+error:
+	shost_printk(KERN_ERR, phba->shost, "hwi_init_port failed");
+	hwi_cleanup(phba);
+	return -ENOMEM;
+}
+
+
+static int hwi_init_controller(struct beiscsi_hba *phba)
+{
+	struct hwi_controller *phwi_ctrlr;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) {
+		phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba->
+		    init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address;
+		SE_DEBUG(DBG_LVL_8, " phwi_ctrlr->phwi_ctxt=%p \n",
+			 phwi_ctrlr->phwi_ctxt);
+	} else {
+		shost_printk(KERN_ERR, phba->shost,
+			     "HWI_MEM_ADDN_CONTEXT is more than one element."
+			     "Failing to load\n");
+		return -ENOMEM;
+	}
+
+	iscsi_init_global_templates(phba);
+	beiscsi_init_wrb_handle(phba);
+	hwi_init_async_pdu_ctx(phba);
+	if (hwi_init_port(phba) != 0) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "hwi_init_controller failed\n");
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+static void beiscsi_free_mem(struct beiscsi_hba *phba)
+{
+	struct be_mem_descriptor *mem_descr;
+	int i, j;
+
+	mem_descr = phba->init_mem;
+	i = 0;
+	j = 0;
+	for (i = 0; i < SE_MEM_MAX; i++) {
+		for (j = mem_descr->num_elements; j > 0; j--) {
+			pci_free_consistent(phba->pcidev,
+			  mem_descr->mem_array[j - 1].size,
+			  mem_descr->mem_array[j - 1].virtual_address,
+			  mem_descr->mem_array[j - 1].bus_address.
+				u.a64.address);
+		}
+		kfree(mem_descr->mem_array);
+		mem_descr++;
+	}
+	kfree(phba->init_mem);
+	kfree(phba->phwi_ctrlr);
+}
+
+static int beiscsi_init_controller(struct beiscsi_hba *phba)
+{
+	int ret = -ENOMEM;
+
+	ret = beiscsi_get_memory(phba);
+	if (ret < 0) {
+		shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe -"
+			     "Failed in beiscsi_alloc_memory \n");
+		return ret;
+	}
+
+	ret = hwi_init_controller(phba);
+	if (ret)
+		goto free_init;
+	SE_DEBUG(DBG_LVL_8, "Return success from beiscsi_init_controller");
+	return 0;
+
+free_init:
+	beiscsi_free_mem(phba);
+	return -ENOMEM;
+}
+
+static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
+{
+	struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg;
+	struct sgl_handle *psgl_handle;
+	struct iscsi_sge *pfrag;
+	unsigned int arr_index, i, idx;
+
+	phba->io_sgl_hndl_avbl = 0;
+	phba->eh_sgl_hndl_avbl = 0;
+	mem_descr_sglh = phba->init_mem;
+	mem_descr_sglh += HWI_MEM_SGLH;
+	if (1 == mem_descr_sglh->num_elements) {
+		phba->io_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) *
+						 phba->params.ios_per_ctrl,
+						 GFP_KERNEL);
+		if (!phba->io_sgl_hndl_base) {
+			shost_printk(KERN_ERR, phba->shost,
+				     "Mem Alloc Failed. Failing to load\n");
+			return -ENOMEM;
+		}
+		phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) *
+						 (phba->params.icds_per_ctrl -
+						 phba->params.ios_per_ctrl),
+						 GFP_KERNEL);
+		if (!phba->eh_sgl_hndl_base) {
+			kfree(phba->io_sgl_hndl_base);
+			shost_printk(KERN_ERR, phba->shost,
+				     "Mem Alloc Failed. Failing to load\n");
+			return -ENOMEM;
+		}
+	} else {
+		shost_printk(KERN_ERR, phba->shost,
+			     "HWI_MEM_SGLH is more than one element."
+			     "Failing to load\n");
+		return -ENOMEM;
+	}
+
+	arr_index = 0;
+	idx = 0;
+	while (idx < mem_descr_sglh->num_elements) {
+		psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address;
+
+		for (i = 0; i < (mem_descr_sglh->mem_array[idx].size /
+		      sizeof(struct sgl_handle)); i++) {
+			if (arr_index < phba->params.ios_per_ctrl) {
+				phba->io_sgl_hndl_base[arr_index] = psgl_handle;
+				phba->io_sgl_hndl_avbl++;
+				arr_index++;
+			} else {
+				phba->eh_sgl_hndl_base[arr_index -
+					phba->params.ios_per_ctrl] =
+								psgl_handle;
+				arr_index++;
+				phba->eh_sgl_hndl_avbl++;
+			}
+			psgl_handle++;
+		}
+		idx++;
+	}
+	SE_DEBUG(DBG_LVL_8,
+		 "phba->io_sgl_hndl_avbl=%d"
+		 "phba->eh_sgl_hndl_avbl=%d \n",
+		 phba->io_sgl_hndl_avbl,
+		 phba->eh_sgl_hndl_avbl);
+	mem_descr_sg = phba->init_mem;
+	mem_descr_sg += HWI_MEM_SGE;
+	SE_DEBUG(DBG_LVL_8, "\n mem_descr_sg->num_elements=%d \n",
+		 mem_descr_sg->num_elements);
+	arr_index = 0;
+	idx = 0;
+	while (idx < mem_descr_sg->num_elements) {
+		pfrag = mem_descr_sg->mem_array[idx].virtual_address;
+
+		for (i = 0;
+		     i < (mem_descr_sg->mem_array[idx].size) /
+		     (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io);
+		     i++) {
+			if (arr_index < phba->params.ios_per_ctrl)
+				psgl_handle = phba->io_sgl_hndl_base[arr_index];
+			else
+				psgl_handle = phba->eh_sgl_hndl_base[arr_index -
+						phba->params.ios_per_ctrl];
+			psgl_handle->pfrag = pfrag;
+			AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0);
+			AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0);
+			pfrag += phba->params.num_sge_per_io;
+			psgl_handle->sgl_index =
+				phba->fw_config.iscsi_cid_start + arr_index++;
+		}
+		idx++;
+	}
+	phba->io_sgl_free_index = 0;
+	phba->io_sgl_alloc_index = 0;
+	phba->eh_sgl_free_index = 0;
+	phba->eh_sgl_alloc_index = 0;
+	return 0;
+}
+
+static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
+{
+	int i, new_cid;
+
+	phba->cid_array = kmalloc(sizeof(void *) * phba->params.cxns_per_ctrl,
+				  GFP_KERNEL);
+	if (!phba->cid_array) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "Failed to allocate memory in "
+			     "hba_setup_cid_tbls\n");
+		return -ENOMEM;
+	}
+	phba->ep_array = kmalloc(sizeof(struct iscsi_endpoint *) *
+				 phba->params.cxns_per_ctrl * 2, GFP_KERNEL);
+	if (!phba->ep_array) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "Failed to allocate memory in "
+			     "hba_setup_cid_tbls \n");
+		kfree(phba->cid_array);
+		return -ENOMEM;
+	}
+	new_cid = phba->fw_config.iscsi_icd_start;
+	for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
+		phba->cid_array[i] = new_cid;
+		new_cid += 2;
+	}
+	phba->avlbl_cids = phba->params.cxns_per_ctrl;
+	return 0;
+}
+
+static unsigned char hwi_enable_intr(struct beiscsi_hba *phba)
+{
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_context_memory *phwi_context;
+	struct be_queue_info *eq;
+	u8 __iomem *addr;
+	u32 reg;
+	u32 enabled;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	phwi_context = phwi_ctrlr->phwi_ctxt;
+
+	eq = &phwi_context->be_eq.q;
+	addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg +
+			PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET);
+	reg = ioread32(addr);
+	SE_DEBUG(DBG_LVL_8, "reg =x%08x \n", reg);
+
+	enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
+	if (!enabled) {
+		reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
+		SE_DEBUG(DBG_LVL_8, "reg =x%08x addr=%p \n", reg, addr);
+		iowrite32(reg, addr);
+		SE_DEBUG(DBG_LVL_8, "eq->id=%d \n", eq->id);
+
+		hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
+	} else
+		shost_printk(KERN_WARNING, phba->shost,
+			     "In hwi_enable_intr, Not Enabled \n");
+	return true;
+}
+
+static void hwi_disable_intr(struct beiscsi_hba *phba)
+{
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+
+	u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
+	u32 reg = ioread32(addr);
+
+	u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
+	if (enabled) {
+		reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
+		iowrite32(reg, addr);
+	} else
+		shost_printk(KERN_WARNING, phba->shost,
+			     "In hwi_disable_intr, Already Disabled \n");
+}
+
+static int beiscsi_init_port(struct beiscsi_hba *phba)
+{
+	int ret;
+
+	ret = beiscsi_init_controller(phba);
+	if (ret < 0) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "beiscsi_dev_probe - Failed in"
+			     "beiscsi_init_controller \n");
+		return ret;
+	}
+	ret = beiscsi_init_sgl_handle(phba);
+	if (ret < 0) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "beiscsi_dev_probe - Failed in"
+			     "beiscsi_init_sgl_handle \n");
+		goto do_cleanup_ctrlr;
+	}
+
+	if (hba_setup_cid_tbls(phba)) {
+		shost_printk(KERN_ERR, phba->shost,
+			     "Failed in hba_setup_cid_tbls\n");
+		kfree(phba->io_sgl_hndl_base);
+		kfree(phba->eh_sgl_hndl_base);
+		goto do_cleanup_ctrlr;
+	}
+
+	return ret;
+
+do_cleanup_ctrlr:
+	hwi_cleanup(phba);
+	return ret;
+}
+
+static void hwi_purge_eq(struct beiscsi_hba *phba)
+{
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_context_memory *phwi_context;
+	struct be_queue_info *eq;
+	struct be_eq_entry *eqe = NULL;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	phwi_context = phwi_ctrlr->phwi_ctxt;
+	eq = &phwi_context->be_eq.q;
+	eqe = queue_tail_node(eq);
+
+	while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
+						& EQE_VALID_MASK) {
+		AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
+		queue_tail_inc(eq);
+		eqe = queue_tail_node(eq);
+	}
+}
+
+static void beiscsi_clean_port(struct beiscsi_hba *phba)
+{
+	unsigned char mgmt_status;
+
+	mgmt_status = mgmt_epfw_cleanup(phba, CMD_CONNECTION_CHUTE_0);
+	if (mgmt_status)
+		shost_printk(KERN_WARNING, phba->shost,
+			     "mgmt_epfw_cleanup FAILED \n");
+	hwi_cleanup(phba);
+	hwi_purge_eq(phba);
+	kfree(phba->io_sgl_hndl_base);
+	kfree(phba->eh_sgl_hndl_base);
+	kfree(phba->cid_array);
+	kfree(phba->ep_array);
+}
+
+void
+beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
+			   struct beiscsi_offload_params *params)
+{
+	struct wrb_handle *pwrb_handle;
+	struct iscsi_target_context_update_wrb *pwrb = NULL;
+	struct be_mem_descriptor *mem_descr;
+	struct beiscsi_hba *phba = beiscsi_conn->phba;
+	u32 doorbell = 0;
+
+	/*
+	 * We can always use 0 here because it is reserved by libiscsi for
+	 * login/startup related tasks.
+	 */
+	pwrb_handle = alloc_wrb_handle(phba, beiscsi_conn->beiscsi_conn_cid, 0);
+	pwrb = (struct iscsi_target_context_update_wrb *)pwrb_handle->pwrb;
+	memset(pwrb, 0, sizeof(*pwrb));
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+		      max_burst_length, pwrb, params->dw[offsetof
+		      (struct amap_beiscsi_offload_params,
+		      max_burst_length) / 32]);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+		      max_send_data_segment_length, pwrb,
+		      params->dw[offsetof(struct amap_beiscsi_offload_params,
+		      max_send_data_segment_length) / 32]);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+		      first_burst_length,
+		      pwrb,
+		      params->dw[offsetof(struct amap_beiscsi_offload_params,
+		      first_burst_length) / 32]);
+
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, erl, pwrb,
+		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
+		      erl) / 32] & OFFLD_PARAMS_ERL));
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, dde, pwrb,
+		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
+		      dde) / 32] & OFFLD_PARAMS_DDE) >> 2);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, hde, pwrb,
+		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
+		      hde) / 32] & OFFLD_PARAMS_HDE) >> 3);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ir2t, pwrb,
+		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
+		      ir2t) / 32] & OFFLD_PARAMS_IR2T) >> 4);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, imd, pwrb,
+		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
+		       imd) / 32] & OFFLD_PARAMS_IMD) >> 5);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, stat_sn,
+		      pwrb,
+		      (params->dw[offsetof(struct amap_beiscsi_offload_params,
+		      exp_statsn) / 32] + 1));
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, type, pwrb,
+		      0x7);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, wrb_idx,
+		      pwrb, pwrb_handle->wrb_index);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, ptr2nextwrb,
+		      pwrb, pwrb_handle->nxt_wrb_index);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+			session_state, pwrb, 0);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, compltonack,
+		      pwrb, 1);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, notpredblq,
+		      pwrb, 0);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb, mode, pwrb,
+		      0);
+
+	mem_descr = phba->init_mem;
+	mem_descr += ISCSI_MEM_GLOBAL_HEADER;
+
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+			pad_buffer_addr_hi, pwrb,
+		      mem_descr->mem_array[0].bus_address.u.a32.address_hi);
+	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
+			pad_buffer_addr_lo, pwrb,
+		      mem_descr->mem_array[0].bus_address.u.a32.address_lo);
+
+	be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_target_context_update_wrb));
+
+	doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
+	doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK) <<
+					DB_DEF_PDU_WRB_INDEX_SHIFT;
+	doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
+
+	iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
+}
+
+static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt,
+			      int *index, int *age)
+{
+	*index = be32_to_cpu(itt) >> 16;
+	if (age)
+		*age = conn->session->age;
+}
+
+/**
+ * beiscsi_alloc_pdu - allocates pdu and related resources
+ * @task: libiscsi task
+ * @opcode: opcode of pdu for task
+ *
+ * This is called with the session lock held. It will allocate
+ * the wrb and sgl if needed for the command. And it will prep
+ * the pdu's itt. beiscsi_parse_pdu will later translate
+ * the pdu itt to the libiscsi task itt.
+ */
+static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
+{
+	struct beiscsi_io_task *io_task = task->dd_data;
+	struct iscsi_conn *conn = task->conn;
+	struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+	struct beiscsi_hba *phba = beiscsi_conn->phba;
+	struct hwi_wrb_context *pwrb_context;
+	struct hwi_controller *phwi_ctrlr;
+	itt_t itt;
+
+	io_task->pwrb_handle = alloc_wrb_handle(phba,
+						beiscsi_conn->beiscsi_conn_cid,
+						task->itt);
+	io_task->pwrb_handle->pio_handle = task;
+	io_task->conn = beiscsi_conn;
+
+	task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr;
+	task->hdr_max = sizeof(struct be_cmd_bhs);
+
+	if (task->sc) {
+		spin_lock(&phba->io_sgl_lock);
+		io_task->psgl_handle = alloc_io_sgl_handle(phba);
+		spin_unlock(&phba->io_sgl_lock);
+		if (!io_task->psgl_handle) {
+			phwi_ctrlr = phba->phwi_ctrlr;
+			pwrb_context = &phwi_ctrlr->wrb_context
+					[beiscsi_conn->beiscsi_conn_cid];
+			free_wrb_handle(phba, pwrb_context,
+						io_task->pwrb_handle);
+			io_task->pwrb_handle = NULL;
+			SE_DEBUG(DBG_LVL_1,
+				 "Alloc of SGL_ICD Failed \n");
+			return -ENOMEM;
+		}
+	} else {
+		io_task->scsi_cmnd = NULL;
+		if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) {
+			if (!beiscsi_conn->login_in_progress) {
+				spin_lock(&phba->mgmt_sgl_lock);
+				io_task->psgl_handle = (struct sgl_handle *)
+						alloc_mgmt_sgl_handle(phba);
+				spin_unlock(&phba->mgmt_sgl_lock);
+				if (!io_task->psgl_handle) {
+					phwi_ctrlr = phba->phwi_ctrlr;
+					pwrb_context =
+					&phwi_ctrlr->wrb_context
+					[beiscsi_conn->beiscsi_conn_cid];
+					free_wrb_handle(phba, pwrb_context,
+							io_task->pwrb_handle);
+					io_task->pwrb_handle = NULL;
+					SE_DEBUG(DBG_LVL_1, "Alloc of "
+						"MGMT_SGL_ICD Failed \n");
+					return -ENOMEM;
+				}
+				beiscsi_conn->login_in_progress = 1;
+				beiscsi_conn->plogin_sgl_handle =
+							io_task->psgl_handle;
+			} else {
+				io_task->psgl_handle =
+						beiscsi_conn->plogin_sgl_handle;
+			}
+		} else {
+			spin_lock(&phba->mgmt_sgl_lock);
+			io_task->psgl_handle = alloc_mgmt_sgl_handle(phba);
+			spin_unlock(&phba->mgmt_sgl_lock);
+			if (!io_task->psgl_handle) {
+				phwi_ctrlr = phba->phwi_ctrlr;
+				pwrb_context = &phwi_ctrlr->wrb_context
+					[beiscsi_conn->beiscsi_conn_cid];
+				free_wrb_handle(phba, pwrb_context,
+							io_task->pwrb_handle);
+				io_task->pwrb_handle = NULL;
+				SE_DEBUG(DBG_LVL_1, "Alloc of "
+					 "MGMT_SGL_ICD Failed \n");
+				return -ENOMEM;
+			}
+		}
+	}
+	itt = (itt_t) cpu_to_be32(((unsigned int)task->itt << 16) |
+			(unsigned int)(io_task->psgl_handle->sgl_index));
+	io_task->cmd_bhs->iscsi_hdr.itt = itt;
+	return 0;
+}
+
+static void beiscsi_cleanup_task(struct iscsi_task *task)
+{
+	struct beiscsi_io_task *io_task = task->dd_data;
+	struct iscsi_conn *conn = task->conn;
+	struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+	struct beiscsi_hba *phba = beiscsi_conn->phba;
+	struct hwi_wrb_context *pwrb_context;
+	struct hwi_controller *phwi_ctrlr;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	pwrb_context = &phwi_ctrlr->wrb_context[beiscsi_conn->beiscsi_conn_cid];
+	if (io_task->pwrb_handle) {
+		free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle);
+		io_task->pwrb_handle = NULL;
+	}
+
+	if (task->sc) {
+		if (io_task->psgl_handle) {
+			spin_lock(&phba->io_sgl_lock);
+			free_io_sgl_handle(phba, io_task->psgl_handle);
+			spin_unlock(&phba->io_sgl_lock);
+			io_task->psgl_handle = NULL;
+		}
+	} else {
+		if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN)
+			return;
+		if (io_task->psgl_handle) {
+			spin_lock(&phba->mgmt_sgl_lock);
+			free_mgmt_sgl_handle(phba, io_task->psgl_handle);
+			spin_unlock(&phba->mgmt_sgl_lock);
+			io_task->psgl_handle = NULL;
+		}
+	}
+}
+
+static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
+			  unsigned int num_sg, unsigned int xferlen,
+			  unsigned int writedir)
+{
+
+	struct beiscsi_io_task *io_task = task->dd_data;
+	struct iscsi_conn *conn = task->conn;
+	struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+	struct beiscsi_hba *phba = beiscsi_conn->phba;
+	struct iscsi_wrb *pwrb = NULL;
+	unsigned int doorbell = 0;
+
+	pwrb = io_task->pwrb_handle->pwrb;
+
+	io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0;
+	io_task->bhs_len = sizeof(struct be_cmd_bhs);
+
+	if (writedir) {
+		SE_DEBUG(DBG_LVL_4, " WRITE Command \t");
+		memset(&io_task->cmd_bhs->iscsi_data_pdu, 0, 48);
+		AMAP_SET_BITS(struct amap_pdu_data_out, itt,
+			      &io_task->cmd_bhs->iscsi_data_pdu,
+			      (unsigned int)io_task->cmd_bhs->iscsi_hdr.itt);
+		AMAP_SET_BITS(struct amap_pdu_data_out, opcode,
+			      &io_task->cmd_bhs->iscsi_data_pdu,
+			      ISCSI_OPCODE_SCSI_DATA_OUT);
+		AMAP_SET_BITS(struct amap_pdu_data_out, final_bit,
+			      &io_task->cmd_bhs->iscsi_data_pdu, 1);
+		AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_WR_CMD);
+		AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
+
+	} else {
+		SE_DEBUG(DBG_LVL_4, "READ Command \t");
+		AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_RD_CMD);
+		AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
+	}
+	memcpy(&io_task->cmd_bhs->iscsi_data_pdu.
+	       dw[offsetof(struct amap_pdu_data_out, lun) / 32],
+	       io_task->cmd_bhs->iscsi_hdr.lun, sizeof(struct scsi_lun));
+
+	AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb,
+		      cpu_to_be16((unsigned short)io_task->cmd_bhs->iscsi_hdr.
+				  lun[0]));
+	AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen);
+	AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
+		      io_task->pwrb_handle->wrb_index);
+	AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
+		      be32_to_cpu(task->cmdsn));
+	AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb,
+		      io_task->psgl_handle->sgl_index);
+
+	hwi_write_sgl(pwrb, sg, num_sg, io_task);
+
+	AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb,
+		      io_task->pwrb_handle->nxt_wrb_index);
+	be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
+
+	doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
+	doorbell |= (io_task->pwrb_handle->wrb_index &
+		     DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
+	doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
+
+	iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
+	return 0;
+}
+
+static int beiscsi_mtask(struct iscsi_task *task)
+{
+	struct beiscsi_io_task *aborted_io_task, *io_task = task->dd_data;
+	struct iscsi_conn *conn = task->conn;
+	struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+	struct beiscsi_hba *phba = beiscsi_conn->phba;
+	struct iscsi_wrb *pwrb = NULL;
+	unsigned int doorbell = 0;
+	struct iscsi_task *aborted_task;
+
+	pwrb = io_task->pwrb_handle->pwrb;
+	AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
+		      be32_to_cpu(task->cmdsn));
+	AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
+		      io_task->pwrb_handle->wrb_index);
+	AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb,
+		      io_task->psgl_handle->sgl_index);
+
+	switch (task->hdr->opcode & ISCSI_OPCODE_MASK) {
+	case ISCSI_OP_LOGIN:
+		AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, TGT_DM_CMD);
+		AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0);
+		AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1);
+		hwi_write_buffer(pwrb, task);
+		break;
+	case ISCSI_OP_NOOP_OUT:
+		AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_RD_CMD);
+		hwi_write_buffer(pwrb, task);
+		break;
+	case ISCSI_OP_TEXT:
+		AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_WR_CMD);
+		AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
+		hwi_write_buffer(pwrb, task);
+		break;
+	case ISCSI_OP_SCSI_TMFUNC:
+		aborted_task = iscsi_itt_to_task(conn,
+					((struct iscsi_tm *)task->hdr)->rtt);
+		 if (!aborted_task)
+			return 0;
+		aborted_io_task = aborted_task->dd_data;
+		if (!aborted_io_task->scsi_cmnd)
+			return 0;
+
+		mgmt_invalidate_icds(phba,
+				     aborted_io_task->psgl_handle->sgl_index,
+				     beiscsi_conn->beiscsi_conn_cid);
+		AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb, INI_TMF_CMD);
+		AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0);
+		hwi_write_buffer(pwrb, task);
+		break;
+	case ISCSI_OP_LOGOUT:
+		AMAP_SET_BITS(struct amap_iscsi_wrb, dmsg, pwrb, 0);
+		AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
+				HWH_TYPE_LOGOUT);
+		hwi_write_buffer(pwrb, task);
+		break;
+
+	default:
+		SE_DEBUG(DBG_LVL_1, "opcode =%d Not supported \n",
+			 task->hdr->opcode & ISCSI_OPCODE_MASK);
+		return -EINVAL;
+	}
+
+	AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb,
+		      be32_to_cpu(task->data_count));
+	AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb,
+		      io_task->pwrb_handle->nxt_wrb_index);
+	be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
+
+	doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
+	doorbell |= (io_task->pwrb_handle->wrb_index &
+		     DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
+	doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
+	iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
+	return 0;
+}
+
+static int beiscsi_task_xmit(struct iscsi_task *task)
+{
+	struct iscsi_conn *conn = task->conn;
+	struct beiscsi_io_task *io_task = task->dd_data;
+	struct scsi_cmnd *sc = task->sc;
+	struct beiscsi_conn *beiscsi_conn = conn->dd_data;
+	struct scatterlist *sg;
+	int num_sg;
+	unsigned int  writedir = 0, xferlen = 0;
+
+	SE_DEBUG(DBG_LVL_4, "\n cid=%d In beiscsi_task_xmit task=%p conn=%p \t"
+		 "beiscsi_conn=%p \n", beiscsi_conn->beiscsi_conn_cid,
+		 task, conn, beiscsi_conn);
+	if (!sc)
+		return beiscsi_mtask(task);
+
+	io_task->scsi_cmnd = sc;
+	num_sg = scsi_dma_map(sc);
+	if (num_sg < 0) {
+		SE_DEBUG(DBG_LVL_1, " scsi_dma_map Failed\n")
+		return num_sg;
+	}
+	SE_DEBUG(DBG_LVL_4, "xferlen=0x%08x scmd=%p num_sg=%d sernum=%lu\n",
+		  (scsi_bufflen(sc)), sc, num_sg, sc->serial_number);
+	xferlen = scsi_bufflen(sc);
+	sg = scsi_sglist(sc);
+	if (sc->sc_data_direction == DMA_TO_DEVICE) {
+		writedir = 1;
+		SE_DEBUG(DBG_LVL_4, "task->imm_count=0x%08x \n",
+			 task->imm_count);
+	} else
+		writedir = 0;
+	return beiscsi_iotask(task, sg, num_sg, xferlen, writedir);
+}
+
+static void beiscsi_remove(struct pci_dev *pcidev)
+{
+	struct beiscsi_hba *phba = NULL;
+
+	phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev);
+	if (!phba) {
+		dev_err(&pcidev->dev, "beiscsi_remove called with no phba \n");
+		return;
+	}
+
+	hwi_disable_intr(phba);
+	if (phba->pcidev->irq)
+		free_irq(phba->pcidev->irq, phba);
+	destroy_workqueue(phba->wq);
+	if (blk_iopoll_enabled)
+		blk_iopoll_disable(&phba->iopoll);
+
+	beiscsi_clean_port(phba);
+	beiscsi_free_mem(phba);
+	beiscsi_unmap_pci_function(phba);
+	pci_free_consistent(phba->pcidev,
+			    phba->ctrl.mbox_mem_alloced.size,
+			    phba->ctrl.mbox_mem_alloced.va,
+			    phba->ctrl.mbox_mem_alloced.dma);
+	iscsi_host_remove(phba->shost);
+	pci_dev_put(phba->pcidev);
+	iscsi_host_free(phba->shost);
+}
+
+static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
+				const struct pci_device_id *id)
+{
+	struct beiscsi_hba *phba = NULL;
+	int ret;
+
+	ret = beiscsi_enable_pci(pcidev);
+	if (ret < 0) {
+		shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
+			     "Failed to enable pci device \n");
+		return ret;
+	}
+
+	phba = beiscsi_hba_alloc(pcidev);
+	if (!phba) {
+		dev_err(&pcidev->dev, "beiscsi_dev_probe-"
+			" Failed in beiscsi_hba_alloc \n");
+		goto disable_pci;
+	}
+
+	pci_set_drvdata(pcidev, phba);
+	ret = be_ctrl_init(phba, pcidev);
+	if (ret) {
+		shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
+				"Failed in be_ctrl_init\n");
+		goto hba_free;
+	}
+
+	spin_lock_init(&phba->io_sgl_lock);
+	spin_lock_init(&phba->mgmt_sgl_lock);
+	spin_lock_init(&phba->isr_lock);
+	beiscsi_get_params(phba);
+	ret = beiscsi_init_port(phba);
+	if (ret < 0) {
+		shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
+			     "Failed in beiscsi_init_port\n");
+		goto free_port;
+	}
+
+	snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_q_irq%u",
+		 phba->shost->host_no);
+	phba->wq = create_singlethread_workqueue(phba->wq_name);
+	if (!phba->wq) {
+		shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
+				"Failed to allocate work queue\n");
+		goto free_twq;
+	}
+
+	INIT_WORK(&phba->work_cqs, beiscsi_process_all_cqs);
+
+	if (blk_iopoll_enabled) {
+		blk_iopoll_init(&phba->iopoll, be_iopoll_budget, be_iopoll);
+		blk_iopoll_enable(&phba->iopoll);
+	}
+
+	ret = beiscsi_init_irqs(phba);
+	if (ret < 0) {
+		shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
+			     "Failed to beiscsi_init_irqs\n");
+		goto free_blkenbld;
+	}
+	ret = hwi_enable_intr(phba);
+	if (ret < 0) {
+		shost_printk(KERN_ERR, phba->shost, "beiscsi_dev_probe-"
+			     "Failed to hwi_enable_intr\n");
+		goto free_ctrlr;
+	}
+
+	SE_DEBUG(DBG_LVL_8, "\n\n\n SUCCESS - DRIVER LOADED \n\n\n");
+	return 0;
+
+free_ctrlr:
+	if (phba->pcidev->irq)
+		free_irq(phba->pcidev->irq, phba);
+free_blkenbld:
+	destroy_workqueue(phba->wq);
+	if (blk_iopoll_enabled)
+		blk_iopoll_disable(&phba->iopoll);
+free_twq:
+	beiscsi_clean_port(phba);
+	beiscsi_free_mem(phba);
+free_port:
+	pci_free_consistent(phba->pcidev,
+			    phba->ctrl.mbox_mem_alloced.size,
+			    phba->ctrl.mbox_mem_alloced.va,
+			   phba->ctrl.mbox_mem_alloced.dma);
+	beiscsi_unmap_pci_function(phba);
+hba_free:
+	iscsi_host_remove(phba->shost);
+	pci_dev_put(phba->pcidev);
+	iscsi_host_free(phba->shost);
+disable_pci:
+	pci_disable_device(pcidev);
+	return ret;
+}
+
+struct iscsi_transport beiscsi_iscsi_transport = {
+	.owner = THIS_MODULE,
+	.name = DRV_NAME,
+	.caps = CAP_RECOVERY_L0 | CAP_HDRDGST |
+		CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD,
+	.param_mask = ISCSI_MAX_RECV_DLENGTH |
+		ISCSI_MAX_XMIT_DLENGTH |
+		ISCSI_HDRDGST_EN |
+		ISCSI_DATADGST_EN |
+		ISCSI_INITIAL_R2T_EN |
+		ISCSI_MAX_R2T |
+		ISCSI_IMM_DATA_EN |
+		ISCSI_FIRST_BURST |
+		ISCSI_MAX_BURST |
+		ISCSI_PDU_INORDER_EN |
+		ISCSI_DATASEQ_INORDER_EN |
+		ISCSI_ERL |
+		ISCSI_CONN_PORT |
+		ISCSI_CONN_ADDRESS |
+		ISCSI_EXP_STATSN |
+		ISCSI_PERSISTENT_PORT |
+		ISCSI_PERSISTENT_ADDRESS |
+		ISCSI_TARGET_NAME | ISCSI_TPGT |
+		ISCSI_USERNAME | ISCSI_PASSWORD |
+		ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN |
+		ISCSI_FAST_ABORT | ISCSI_ABORT_TMO |
+		ISCSI_LU_RESET_TMO |
+		ISCSI_PING_TMO | ISCSI_RECV_TMO |
+		ISCSI_IFACE_NAME | ISCSI_INITIATOR_NAME,
+	.host_param_mask = ISCSI_HOST_HWADDRESS | ISCSI_HOST_IPADDRESS |
+				ISCSI_HOST_INITIATOR_NAME,
+	.create_session = beiscsi_session_create,
+	.destroy_session = beiscsi_session_destroy,
+	.create_conn = beiscsi_conn_create,
+	.bind_conn = beiscsi_conn_bind,
+	.destroy_conn = iscsi_conn_teardown,
+	.set_param = beiscsi_set_param,
+	.get_conn_param = beiscsi_conn_get_param,
+	.get_session_param = iscsi_session_get_param,
+	.get_host_param = beiscsi_get_host_param,
+	.start_conn = beiscsi_conn_start,
+	.stop_conn = beiscsi_conn_stop,
+	.send_pdu = iscsi_conn_send_pdu,
+	.xmit_task = beiscsi_task_xmit,
+	.cleanup_task = beiscsi_cleanup_task,
+	.alloc_pdu = beiscsi_alloc_pdu,
+	.parse_pdu_itt = beiscsi_parse_pdu,
+	.get_stats = beiscsi_conn_get_stats,
+	.ep_connect = beiscsi_ep_connect,
+	.ep_poll = beiscsi_ep_poll,
+	.ep_disconnect = beiscsi_ep_disconnect,
+	.session_recovery_timedout = iscsi_session_recovery_timedout,
+};
+
+static struct pci_driver beiscsi_pci_driver = {
+	.name = DRV_NAME,
+	.probe = beiscsi_dev_probe,
+	.remove = beiscsi_remove,
+	.id_table = beiscsi_pci_id_table
+};
+
+static int __init beiscsi_module_init(void)
+{
+	int ret;
+
+	beiscsi_scsi_transport =
+			iscsi_register_transport(&beiscsi_iscsi_transport);
+	if (!beiscsi_scsi_transport) {
+		SE_DEBUG(DBG_LVL_1,
+			 "beiscsi_module_init - Unable to  register beiscsi"
+			 "transport.\n");
+		ret = -ENOMEM;
+	}
+	SE_DEBUG(DBG_LVL_8, "In beiscsi_module_init, tt=%p \n",
+		 &beiscsi_iscsi_transport);
+
+	ret = pci_register_driver(&beiscsi_pci_driver);
+	if (ret) {
+		SE_DEBUG(DBG_LVL_1,
+			 "beiscsi_module_init - Unable to  register"
+			 "beiscsi pci driver.\n");
+		goto unregister_iscsi_transport;
+	}
+	return 0;
+
+unregister_iscsi_transport:
+	iscsi_unregister_transport(&beiscsi_iscsi_transport);
+	return ret;
+}
+
+static void __exit beiscsi_module_exit(void)
+{
+	pci_unregister_driver(&beiscsi_pci_driver);
+	iscsi_unregister_transport(&beiscsi_iscsi_transport);
+}
+
+module_init(beiscsi_module_init);
+module_exit(beiscsi_module_exit);
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
new file mode 100644
index 0000000..2520c39
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -0,0 +1,833 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Written by: Jayamohan Kallickal (jayamohank@serverengines.com)
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+
+#ifndef _BEISCSI_MAIN_
+#define _BEISCSI_MAIN_
+
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/in.h>
+#include <linux/blk-iopoll.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/iscsi_proto.h>
+#include <scsi/libiscsi.h>
+#include <scsi/scsi_transport_iscsi.h>
+
+#include "be.h"
+
+
+
+#define DRV_NAME		"be2iscsi"
+#define BUILD_STR		"2.0.527.0"
+
+#define BE_NAME			"ServerEngines BladeEngine2" \
+				"Linux iSCSI Driver version" BUILD_STR
+#define DRV_DESC		BE_NAME " " "Driver"
+
+#define BE_VENDOR_ID 		0x19A2
+#define BE_DEVICE_ID1		0x212
+#define OC_DEVICE_ID1		0x702
+#define OC_DEVICE_ID2		0x703
+
+#define BE2_MAX_SESSIONS	64
+#define BE2_CMDS_PER_CXN	128
+#define BE2_LOGOUTS		BE2_MAX_SESSIONS
+#define BE2_TMFS		16
+#define BE2_NOPOUT_REQ		16
+#define BE2_ASYNCPDUS		BE2_MAX_SESSIONS
+#define BE2_MAX_ICDS		2048
+#define BE2_SGE			32
+#define BE2_DEFPDU_HDR_SZ	64
+#define BE2_DEFPDU_DATA_SZ	8192
+#define BE2_IO_DEPTH \
+	(BE2_MAX_ICDS / 2 - (BE2_LOGOUTS + BE2_TMFS + BE2_NOPOUT_REQ))
+
+#define BEISCSI_SGLIST_ELEMENTS	BE2_SGE
+
+#define BEISCSI_MAX_CMNDS	1024	/* Max IO's per Ctrlr sht->can_queue */
+#define BEISCSI_CMD_PER_LUN	128	/* scsi_host->cmd_per_lun */
+#define BEISCSI_MAX_SECTORS	2048	/* scsi_host->max_sectors */
+
+#define BEISCSI_MAX_CMD_LEN	16	/* scsi_host->max_cmd_len */
+#define BEISCSI_NUM_MAX_LUN	256	/* scsi_host->max_lun */
+#define BEISCSI_NUM_DEVICES_SUPPORTED	0x01
+#define BEISCSI_MAX_FRAGS_INIT	192
+#define BE_NUM_MSIX_ENTRIES 	1
+#define MPU_EP_SEMAPHORE 	0xac
+
+#define BE_SENSE_INFO_SIZE		258
+#define BE_ISCSI_PDU_HEADER_SIZE	64
+#define BE_MIN_MEM_SIZE			16384
+
+#define IIOC_SCSI_DATA                  0x05	/* Write Operation */
+
+#define DBG_LVL				0x00000001
+#define DBG_LVL_1			0x00000001
+#define DBG_LVL_2			0x00000002
+#define DBG_LVL_3			0x00000004
+#define DBG_LVL_4			0x00000008
+#define DBG_LVL_5			0x00000010
+#define DBG_LVL_6			0x00000020
+#define DBG_LVL_7			0x00000040
+#define DBG_LVL_8			0x00000080
+
+#define SE_DEBUG(debug_mask, fmt, args...)		\
+do {							\
+	if (debug_mask & DBG_LVL) {			\
+		printk(KERN_ERR "(%s():%d):", __func__, __LINE__);\
+		printk(fmt, ##args);			\
+	}						\
+} while (0);
+
+/**
+ * hardware needs the async PDU buffers to be posted in multiples of 8
+ * So have atleast 8 of them by default
+ */
+
+#define HWI_GET_ASYNC_PDU_CTX(phwi)	(phwi->phwi_ctxt->pasync_ctx)
+
+/********* Memory BAR register ************/
+#define PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET 	0xfc
+/**
+ * Host Interrupt Enable, if set interrupts are enabled although "PCI Interrupt
+ * Disable" may still globally block interrupts in addition to individual
+ * interrupt masks; a mechanism for the device driver to block all interrupts
+ * atomically without having to arbitrate for the PCI Interrupt Disable bit
+ * with the OS.
+ */
+#define MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK	(1 << 29)	/* bit 29 */
+
+/********* ISR0 Register offset **********/
+#define CEV_ISR0_OFFSET 			0xC18
+#define CEV_ISR_SIZE				4
+
+/**
+ * Macros for reading/writing a protection domain or CSR registers
+ * in BladeEngine.
+ */
+
+#define DB_TXULP0_OFFSET 0x40
+#define DB_RXULP0_OFFSET 0xA0
+/********* Event Q door bell *************/
+#define DB_EQ_OFFSET			DB_CQ_OFFSET
+#define DB_EQ_RING_ID_MASK		0x1FF	/* bits 0 - 8 */
+/* Clear the interrupt for this eq */
+#define DB_EQ_CLR_SHIFT			(9)	/* bit 9 */
+/* Must be 1 */
+#define DB_EQ_EVNT_SHIFT		(10)	/* bit 10 */
+/* Number of event entries processed */
+#define DB_EQ_NUM_POPPED_SHIFT		(16)	/* bits 16 - 28 */
+/* Rearm bit */
+#define DB_EQ_REARM_SHIFT		(29)	/* bit 29 */
+
+/********* Compl Q door bell *************/
+#define DB_CQ_OFFSET 			0x120
+#define DB_CQ_RING_ID_MASK		0x3FF	/* bits 0 - 9 */
+/* Number of event entries processed */
+#define DB_CQ_NUM_POPPED_SHIFT		(16) 	/* bits 16 - 28 */
+/* Rearm bit */
+#define DB_CQ_REARM_SHIFT		(29) 	/* bit 29 */
+
+#define GET_HWI_CONTROLLER_WS(pc)	(pc->phwi_ctrlr)
+#define HWI_GET_DEF_BUFQ_ID(pc) (((struct hwi_controller *)\
+		(GET_HWI_CONTROLLER_WS(pc)))->default_pdu_data.id)
+#define HWI_GET_DEF_HDRQ_ID(pc) (((struct hwi_controller *)\
+		(GET_HWI_CONTROLLER_WS(pc)))->default_pdu_hdr.id)
+
+#define PAGES_REQUIRED(x) \
+	((x < PAGE_SIZE) ? 1 :  ((x + PAGE_SIZE - 1) / PAGE_SIZE))
+
+enum be_mem_enum {
+	HWI_MEM_ADDN_CONTEXT,
+	HWI_MEM_CQ,
+	HWI_MEM_EQ,
+	HWI_MEM_WRB,
+	HWI_MEM_WRBH,
+	HWI_MEM_SGLH,	/* 5 */
+	HWI_MEM_SGE,
+	HWI_MEM_ASYNC_HEADER_BUF,
+	HWI_MEM_ASYNC_DATA_BUF,
+	HWI_MEM_ASYNC_HEADER_RING,
+	HWI_MEM_ASYNC_DATA_RING,	/* 10 */
+	HWI_MEM_ASYNC_HEADER_HANDLE,
+	HWI_MEM_ASYNC_DATA_HANDLE,
+	HWI_MEM_ASYNC_PDU_CONTEXT,
+	ISCSI_MEM_GLOBAL_HEADER,
+	SE_MEM_MAX  	/* 15 */
+};
+
+struct be_bus_address32 {
+	unsigned int address_lo;
+	unsigned int address_hi;
+};
+
+struct be_bus_address64 {
+	unsigned long long address;
+};
+
+struct be_bus_address {
+	union {
+		struct be_bus_address32 a32;
+		struct be_bus_address64 a64;
+	} u;
+};
+
+struct mem_array {
+	struct be_bus_address bus_address;	/* Bus address of location */
+	void *virtual_address;		/* virtual address to the location */
+	unsigned int size;		/* Size required by memory block */
+};
+
+struct be_mem_descriptor {
+	unsigned int index;	/* Index of this memory parameter */
+	unsigned int category;	/* type indicates cached/non-cached */
+	unsigned int num_elements;	/* number of elements in this
+					 * descriptor
+					 */
+	unsigned int alignment_mask;	/* Alignment mask for this block */
+	unsigned int size_in_bytes;	/* Size required by memory block */
+	struct mem_array *mem_array;
+};
+
+struct sgl_handle {
+	unsigned int sgl_index;
+	struct iscsi_sge *pfrag;
+};
+
+struct hba_parameters {
+	unsigned int ios_per_ctrl;
+	unsigned int cxns_per_ctrl;
+	unsigned int asyncpdus_per_ctrl;
+	unsigned int icds_per_ctrl;
+	unsigned int num_sge_per_io;
+	unsigned int defpdu_hdr_sz;
+	unsigned int defpdu_data_sz;
+	unsigned int num_cq_entries;
+	unsigned int num_eq_entries;
+	unsigned int wrbs_per_cxn;
+	unsigned int crashmode;
+	unsigned int hba_num;
+
+	unsigned int mgmt_ws_sz;
+	unsigned int hwi_ws_sz;
+
+	unsigned int eto;
+	unsigned int ldto;
+
+	unsigned int dbg_flags;
+	unsigned int num_cxn;
+
+	unsigned int eq_timer;
+	/**
+	 * These are calculated from other params. They're here
+	 * for debug purposes
+	 */
+	unsigned int num_mcc_pages;
+	unsigned int num_mcc_cq_pages;
+	unsigned int num_cq_pages;
+	unsigned int num_eq_pages;
+
+	unsigned int num_async_pdu_buf_pages;
+	unsigned int num_async_pdu_buf_sgl_pages;
+	unsigned int num_async_pdu_buf_cq_pages;
+
+	unsigned int num_async_pdu_hdr_pages;
+	unsigned int num_async_pdu_hdr_sgl_pages;
+	unsigned int num_async_pdu_hdr_cq_pages;
+
+	unsigned int num_sge;
+};
+
+struct beiscsi_hba {
+	struct hba_parameters params;
+	struct hwi_controller *phwi_ctrlr;
+	unsigned int mem_req[SE_MEM_MAX];
+	/* PCI BAR mapped addresses */
+	u8 __iomem *csr_va;	/* CSR */
+	u8 __iomem *db_va;	/* Door  Bell  */
+	u8 __iomem *pci_va;	/* PCI Config */
+	struct be_bus_address csr_pa;	/* CSR */
+	struct be_bus_address db_pa;	/* CSR */
+	struct be_bus_address pci_pa;	/* CSR */
+	/* PCI representation of our HBA */
+	struct pci_dev *pcidev;
+	unsigned int state;
+	unsigned short asic_revision;
+	struct blk_iopoll	iopoll;
+	struct be_mem_descriptor *init_mem;
+
+	unsigned short io_sgl_alloc_index;
+	unsigned short io_sgl_free_index;
+	unsigned short io_sgl_hndl_avbl;
+	struct sgl_handle **io_sgl_hndl_base;
+
+	unsigned short eh_sgl_alloc_index;
+	unsigned short eh_sgl_free_index;
+	unsigned short eh_sgl_hndl_avbl;
+	struct sgl_handle **eh_sgl_hndl_base;
+	spinlock_t io_sgl_lock;
+	spinlock_t mgmt_sgl_lock;
+	spinlock_t isr_lock;
+	unsigned int age;
+	unsigned short avlbl_cids;
+	unsigned short cid_alloc;
+	unsigned short cid_free;
+	struct beiscsi_conn *conn_table[BE2_MAX_SESSIONS * 2];
+	struct list_head hba_queue;
+	unsigned short *cid_array;
+	struct iscsi_endpoint **ep_array;
+	struct Scsi_Host *shost;
+	struct {
+		/**
+		 * group together since they are used most frequently
+		 * for cid to cri conversion
+		 */
+		unsigned int iscsi_cid_start;
+		unsigned int phys_port;
+
+		unsigned int isr_offset;
+		unsigned int iscsi_icd_start;
+		unsigned int iscsi_cid_count;
+		unsigned int iscsi_icd_count;
+		unsigned int pci_function;
+
+		unsigned short cid_alloc;
+		unsigned short cid_free;
+		unsigned short avlbl_cids;
+		spinlock_t cid_lock;
+	} fw_config;
+
+	u8 mac_address[ETH_ALEN];
+	unsigned short todo_cq;
+	unsigned short todo_mcc_cq;
+	char wq_name[20];
+	struct workqueue_struct *wq;	/* The actuak work queue */
+	struct work_struct work_cqs;	/* The work being queued */
+	struct be_ctrl_info ctrl;
+};
+
+/**
+ * struct beiscsi_conn - iscsi connection structure
+ */
+struct beiscsi_conn {
+	struct iscsi_conn *conn;
+	struct beiscsi_hba *phba;
+	u32 exp_statsn;
+	u32 beiscsi_conn_cid;
+	struct beiscsi_endpoint *ep;
+	unsigned short login_in_progress;
+	struct sgl_handle *plogin_sgl_handle;
+};
+
+/* This structure is used by the chip */
+struct pdu_data_out {
+	u32 dw[12];
+};
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_pdu_data_out {
+	u8 opcode[6];		/* opcode */
+	u8 rsvd0[2];		/* should be 0 */
+	u8 rsvd1[7];
+	u8 final_bit;		/* F bit */
+	u8 rsvd2[16];
+	u8 ahs_length[8];	/* no AHS */
+	u8 data_len_hi[8];
+	u8 data_len_lo[16];	/* DataSegmentLength */
+	u8 lun[64];
+	u8 itt[32];		/* ITT; initiator task tag */
+	u8 ttt[32];		/* TTT; valid for R2T or 0xffffffff */
+	u8 rsvd3[32];
+	u8 exp_stat_sn[32];
+	u8 rsvd4[32];
+	u8 data_sn[32];
+	u8 buffer_offset[32];
+	u8 rsvd5[32];
+};
+
+struct be_cmd_bhs {
+	struct iscsi_cmd iscsi_hdr;
+	unsigned char pad1[16];
+	struct pdu_data_out iscsi_data_pdu;
+	unsigned char pad2[BE_SENSE_INFO_SIZE -
+			sizeof(struct pdu_data_out)];
+};
+
+struct beiscsi_io_task {
+	struct wrb_handle *pwrb_handle;
+	struct sgl_handle *psgl_handle;
+	struct beiscsi_conn *conn;
+	struct scsi_cmnd *scsi_cmnd;
+	unsigned int cmd_sn;
+	unsigned int flags;
+	unsigned short cid;
+	unsigned short header_len;
+
+	unsigned int alloc_size;
+	struct be_cmd_bhs *cmd_bhs;
+	struct be_bus_address bhs_pa;
+	unsigned short bhs_len;
+};
+
+struct be_nonio_bhs {
+	struct iscsi_hdr iscsi_hdr;
+	unsigned char pad1[16];
+	struct pdu_data_out iscsi_data_pdu;
+	unsigned char pad2[BE_SENSE_INFO_SIZE -
+			sizeof(struct pdu_data_out)];
+};
+
+struct be_status_bhs {
+	struct iscsi_cmd iscsi_hdr;
+	unsigned char pad1[16];
+	/**
+	 * The plus 2 below is to hold the sense info length that gets
+	 * DMA'ed by RxULP
+	 */
+	unsigned char sense_info[BE_SENSE_INFO_SIZE];
+};
+
+struct iscsi_sge {
+	u32 dw[4];
+};
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_iscsi_sge {
+	u8 addr_hi[32];
+	u8 addr_lo[32];
+	u8 sge_offset[22];	/* DWORD 2 */
+	u8 rsvd0[9];		/* DWORD 2 */
+	u8 last_sge;		/* DWORD 2 */
+	u8 len[17];		/* DWORD 3 */
+	u8 rsvd1[15];		/* DWORD 3 */
+};
+
+struct beiscsi_offload_params {
+	u32 dw[5];
+};
+
+#define OFFLD_PARAMS_ERL	0x00000003
+#define OFFLD_PARAMS_DDE	0x00000004
+#define OFFLD_PARAMS_HDE	0x00000008
+#define OFFLD_PARAMS_IR2T	0x00000010
+#define OFFLD_PARAMS_IMD	0x00000020
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_beiscsi_offload_params {
+	u8 max_burst_length[32];
+	u8 max_send_data_segment_length[32];
+	u8 first_burst_length[32];
+	u8 erl[2];
+	u8 dde[1];
+	u8 hde[1];
+	u8 ir2t[1];
+	u8 imd[1];
+	u8 pad[26];
+	u8 exp_statsn[32];
+};
+
+/* void hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
+		struct beiscsi_hba *phba, struct sol_cqe *psol);*/
+
+struct async_pdu_handle {
+	struct list_head link;
+	struct be_bus_address pa;
+	void *pbuffer;
+	unsigned int consumed;
+	unsigned char index;
+	unsigned char is_header;
+	unsigned short cri;
+	unsigned long buffer_len;
+};
+
+struct hwi_async_entry {
+	struct {
+		unsigned char hdr_received;
+		unsigned char hdr_len;
+		unsigned short bytes_received;
+		unsigned int bytes_needed;
+		struct list_head list;
+	} wait_queue;
+
+	struct list_head header_busy_list;
+	struct list_head data_busy_list;
+};
+
+#define BE_MIN_ASYNC_ENTRIES 128
+
+struct hwi_async_pdu_context {
+	struct {
+		struct be_bus_address pa_base;
+		void *va_base;
+		void *ring_base;
+		struct async_pdu_handle *handle_base;
+
+		unsigned int host_write_ptr;
+		unsigned int ep_read_ptr;
+		unsigned int writables;
+
+		unsigned int free_entries;
+		unsigned int busy_entries;
+		unsigned int buffer_size;
+		unsigned int num_entries;
+
+		struct list_head free_list;
+	} async_header;
+
+	struct {
+		struct be_bus_address pa_base;
+		void *va_base;
+		void *ring_base;
+		struct async_pdu_handle *handle_base;
+
+		unsigned int host_write_ptr;
+		unsigned int ep_read_ptr;
+		unsigned int writables;
+
+		unsigned int free_entries;
+		unsigned int busy_entries;
+		unsigned int buffer_size;
+		struct list_head free_list;
+		unsigned int num_entries;
+	} async_data;
+
+	/**
+	 * This is a varying size list! Do not add anything
+	 * after this entry!!
+	 */
+	struct hwi_async_entry async_entry[BE_MIN_ASYNC_ENTRIES];
+};
+
+#define PDUCQE_CODE_MASK	0x0000003F
+#define PDUCQE_DPL_MASK		0xFFFF0000
+#define PDUCQE_INDEX_MASK	0x0000FFFF
+
+struct i_t_dpdu_cqe {
+	u32 dw[4];
+} __packed;
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_i_t_dpdu_cqe {
+	u8 db_addr_hi[32];
+	u8 db_addr_lo[32];
+	u8 code[6];
+	u8 cid[10];
+	u8 dpl[16];
+	u8 index[16];
+	u8 num_cons[10];
+	u8 rsvd0[4];
+	u8 final;
+	u8 valid;
+} __packed;
+
+#define CQE_VALID_MASK	0x80000000
+#define CQE_CODE_MASK	0x0000003F
+#define CQE_CID_MASK	0x0000FFC0
+
+#define EQE_VALID_MASK		0x00000001
+#define EQE_MAJORCODE_MASK	0x0000000E
+#define EQE_RESID_MASK		0xFFFF0000
+
+struct be_eq_entry {
+	u32 dw[1];
+} __packed;
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_eq_entry {
+	u8 valid;		/* DWORD 0 */
+	u8 major_code[3];	/* DWORD 0 */
+	u8 minor_code[12];	/* DWORD 0 */
+	u8 resource_id[16];	/* DWORD 0 */
+
+} __packed;
+
+struct cq_db {
+	u32 dw[1];
+} __packed;
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_cq_db {
+	u8 qid[10];
+	u8 event[1];
+	u8 rsvd0[5];
+	u8 num_popped[13];
+	u8 rearm[1];
+	u8 rsvd1[2];
+} __packed;
+
+void beiscsi_process_eq(struct beiscsi_hba *phba);
+
+
+struct iscsi_wrb {
+	u32 dw[16];
+} __packed;
+
+#define WRB_TYPE_MASK 0xF0000000
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_iscsi_wrb {
+	u8 lun[14];		/* DWORD 0 */
+	u8 lt;			/* DWORD 0 */
+	u8 invld;		/* DWORD 0 */
+	u8 wrb_idx[8];		/* DWORD 0 */
+	u8 dsp;			/* DWORD 0 */
+	u8 dmsg;		/* DWORD 0 */
+	u8 undr_run;		/* DWORD 0 */
+	u8 over_run;		/* DWORD 0 */
+	u8 type[4];		/* DWORD 0 */
+	u8 ptr2nextwrb[8];	/* DWORD 1 */
+	u8 r2t_exp_dtl[24];	/* DWORD 1 */
+	u8 sgl_icd_idx[12];	/* DWORD 2 */
+	u8 rsvd0[20];		/* DWORD 2 */
+	u8 exp_data_sn[32];	/* DWORD 3 */
+	u8 iscsi_bhs_addr_hi[32];	/* DWORD 4 */
+	u8 iscsi_bhs_addr_lo[32];	/* DWORD 5 */
+	u8 cmdsn_itt[32];	/* DWORD 6 */
+	u8 dif_ref_tag[32];	/* DWORD 7 */
+	u8 sge0_addr_hi[32];	/* DWORD 8 */
+	u8 sge0_addr_lo[32];	/* DWORD 9  */
+	u8 sge0_offset[22];	/* DWORD 10 */
+	u8 pbs;			/* DWORD 10 */
+	u8 dif_mode[2];		/* DWORD 10 */
+	u8 rsvd1[6];		/* DWORD 10 */
+	u8 sge0_last;		/* DWORD 10 */
+	u8 sge0_len[17];	/* DWORD 11 */
+	u8 dif_meta_tag[14];	/* DWORD 11 */
+	u8 sge0_in_ddr;		/* DWORD 11 */
+	u8 sge1_addr_hi[32];	/* DWORD 12 */
+	u8 sge1_addr_lo[32];	/* DWORD 13 */
+	u8 sge1_r2t_offset[22];	/* DWORD 14 */
+	u8 rsvd2[9];		/* DWORD 14 */
+	u8 sge1_last;		/* DWORD 14 */
+	u8 sge1_len[17];	/* DWORD 15 */
+	u8 ref_sgl_icd_idx[12];	/* DWORD 15 */
+	u8 rsvd3[2];		/* DWORD 15 */
+	u8 sge1_in_ddr;		/* DWORD 15 */
+
+} __packed;
+
+struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid,
+				    int index);
+void
+free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle);
+
+struct pdu_nop_out {
+	u32 dw[12];
+};
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_pdu_nop_out {
+	u8 opcode[6];		/* opcode 0x00 */
+	u8 i_bit;		/* I Bit */
+	u8 x_bit;		/* reserved; should be 0 */
+	u8 fp_bit_filler1[7];
+	u8 f_bit;		/* always 1 */
+	u8 reserved1[16];
+	u8 ahs_length[8];	/* no AHS */
+	u8 data_len_hi[8];
+	u8 data_len_lo[16];	/* DataSegmentLength */
+	u8 lun[64];
+	u8 itt[32];		/* initiator id for ping or 0xffffffff */
+	u8 ttt[32];		/* target id for ping or 0xffffffff */
+	u8 cmd_sn[32];
+	u8 exp_stat_sn[32];
+	u8 reserved5[128];
+};
+
+#define PDUBASE_OPCODE_MASK	0x0000003F
+#define PDUBASE_DATALENHI_MASK	0x0000FF00
+#define PDUBASE_DATALENLO_MASK	0xFFFF0000
+
+struct pdu_base {
+	u32 dw[16];
+} __packed;
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_pdu_base {
+	u8 opcode[6];
+	u8 i_bit;		/* immediate bit */
+	u8 x_bit;		/* reserved, always 0 */
+	u8 reserved1[24];	/* opcode-specific fields */
+	u8 ahs_length[8];	/* length units is 4 byte words */
+	u8 data_len_hi[8];
+	u8 data_len_lo[16];	/* DatasegmentLength */
+	u8 lun[64];		/* lun or opcode-specific fields */
+	u8 itt[32];		/* initiator task tag */
+	u8 reserved4[224];
+};
+
+struct iscsi_target_context_update_wrb {
+	u32 dw[16];
+} __packed;
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_iscsi_target_context_update_wrb {
+	u8 lun[14];		/* DWORD 0 */
+	u8 lt;			/* DWORD 0 */
+	u8 invld;		/* DWORD 0 */
+	u8 wrb_idx[8];		/* DWORD 0 */
+	u8 dsp;			/* DWORD 0 */
+	u8 dmsg;		/* DWORD 0 */
+	u8 undr_run;		/* DWORD 0 */
+	u8 over_run;		/* DWORD 0 */
+	u8 type[4];		/* DWORD 0 */
+	u8 ptr2nextwrb[8];	/* DWORD 1 */
+	u8 max_burst_length[19];	/* DWORD 1 */
+	u8 rsvd0[5];		/* DWORD 1 */
+	u8 rsvd1[15];		/* DWORD 2 */
+	u8 max_send_data_segment_length[17];	/* DWORD 2 */
+	u8 first_burst_length[14];	/* DWORD 3 */
+	u8 rsvd2[2];		/* DWORD 3 */
+	u8 tx_wrbindex_drv_msg[8];	/* DWORD 3 */
+	u8 rsvd3[5];		/* DWORD 3 */
+	u8 session_state[3];	/* DWORD 3 */
+	u8 rsvd4[16];		/* DWORD 4 */
+	u8 tx_jumbo;		/* DWORD 4 */
+	u8 hde;			/* DWORD 4 */
+	u8 dde;			/* DWORD 4 */
+	u8 erl[2];		/* DWORD 4 */
+	u8 domain_id[5];		/* DWORD 4 */
+	u8 mode;		/* DWORD 4 */
+	u8 imd;			/* DWORD 4 */
+	u8 ir2t;		/* DWORD 4 */
+	u8 notpredblq[2];	/* DWORD 4 */
+	u8 compltonack;		/* DWORD 4 */
+	u8 stat_sn[32];		/* DWORD 5 */
+	u8 pad_buffer_addr_hi[32];	/* DWORD 6 */
+	u8 pad_buffer_addr_lo[32];	/* DWORD 7 */
+	u8 pad_addr_hi[32];	/* DWORD 8 */
+	u8 pad_addr_lo[32];	/* DWORD 9 */
+	u8 rsvd5[32];		/* DWORD 10 */
+	u8 rsvd6[32];		/* DWORD 11 */
+	u8 rsvd7[32];		/* DWORD 12 */
+	u8 rsvd8[32];		/* DWORD 13 */
+	u8 rsvd9[32];		/* DWORD 14 */
+	u8 rsvd10[32];		/* DWORD 15 */
+
+} __packed;
+
+struct be_ring {
+	u32 pages;		/* queue size in pages */
+	u32 id;			/* queue id assigned by beklib */
+	u32 num;		/* number of elements in queue */
+	u32 cidx;		/* consumer index */
+	u32 pidx;		/* producer index -- not used by most rings */
+	u32 item_size;		/* size in bytes of one object */
+
+	void *va;		/* The virtual address of the ring.  This
+				 * should be last to allow 32 & 64 bit debugger
+				 * extensions to work.
+				 */
+};
+
+struct hwi_wrb_context {
+	struct list_head wrb_handle_list;
+	struct list_head wrb_handle_drvr_list;
+	struct wrb_handle **pwrb_handle_base;
+	struct wrb_handle **pwrb_handle_basestd;
+	struct iscsi_wrb *plast_wrb;
+	unsigned short alloc_index;
+	unsigned short free_index;
+	unsigned short wrb_handles_available;
+	unsigned short cid;
+};
+
+struct hwi_controller {
+	struct list_head io_sgl_list;
+	struct list_head eh_sgl_list;
+	struct sgl_handle *psgl_handle_base;
+	unsigned int wrb_mem_index;
+
+	struct hwi_wrb_context wrb_context[BE2_MAX_SESSIONS * 2];
+	struct mcc_wrb *pmcc_wrb_base;
+	struct be_ring default_pdu_hdr;
+	struct be_ring default_pdu_data;
+	struct hwi_context_memory *phwi_ctxt;
+	unsigned short cq_errors[CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN];
+};
+
+enum hwh_type_enum {
+	HWH_TYPE_IO = 1,
+	HWH_TYPE_LOGOUT = 2,
+	HWH_TYPE_TMF = 3,
+	HWH_TYPE_NOP = 4,
+	HWH_TYPE_IO_RD = 5,
+	HWH_TYPE_LOGIN = 11,
+	HWH_TYPE_INVALID = 0xFFFFFFFF
+};
+
+struct wrb_handle {
+	enum hwh_type_enum type;
+	unsigned short wrb_index;
+	unsigned short nxt_wrb_index;
+
+	struct iscsi_task *pio_handle;
+	struct iscsi_wrb *pwrb;
+};
+
+struct hwi_context_memory {
+	struct be_eq_obj be_eq;
+	struct be_queue_info be_cq;
+	struct be_queue_info be_mcc_cq;
+	struct be_queue_info be_mcc;
+
+	struct be_queue_info be_def_hdrq;
+	struct be_queue_info be_def_dataq;
+
+	struct be_queue_info be_wrbq[BE2_MAX_SESSIONS];
+	struct be_mcc_wrb_context *pbe_mcc_context;
+
+	struct hwi_async_pdu_context *pasync_ctx;
+};
+
+#endif
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
new file mode 100644
index 0000000..12e644f
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -0,0 +1,321 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Written by: Jayamohan Kallickal (jayamohank@serverengines.com)
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+
+#include "be_mgmt.h"
+#include "be_iscsi.h"
+
+unsigned char mgmt_get_fw_config(struct be_ctrl_info *ctrl,
+				struct beiscsi_hba *phba)
+{
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct be_fw_cfg *req = embedded_payload(wrb);
+	int status = 0;
+
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+			   OPCODE_COMMON_QUERY_FIRMWARE_CONFIG, sizeof(*req));
+
+	status = be_mbox_notify(ctrl);
+	if (!status) {
+		struct be_fw_cfg *pfw_cfg;
+		pfw_cfg = req;
+		phba->fw_config.phys_port = pfw_cfg->phys_port;
+		phba->fw_config.iscsi_icd_start =
+					pfw_cfg->ulp[0].icd_base;
+		phba->fw_config.iscsi_icd_count =
+					pfw_cfg->ulp[0].icd_count;
+		phba->fw_config.iscsi_cid_start =
+					pfw_cfg->ulp[0].sq_base;
+		phba->fw_config.iscsi_cid_count =
+					pfw_cfg->ulp[0].sq_count;
+	} else {
+		shost_printk(KERN_WARNING, phba->shost,
+			     "Failed in mgmt_get_fw_config \n");
+	}
+
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
+
+unsigned char mgmt_check_supported_fw(struct be_ctrl_info *ctrl)
+{
+	struct be_dma_mem nonemb_cmd;
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct be_mgmt_controller_attributes *req;
+	struct be_sge *sge = nonembedded_sgl(wrb);
+	int status = 0;
+
+	nonemb_cmd.va = pci_alloc_consistent(ctrl->pdev,
+				sizeof(struct be_mgmt_controller_attributes),
+				&nonemb_cmd.dma);
+	if (nonemb_cmd.va == NULL) {
+		SE_DEBUG(DBG_LVL_1,
+			 "Failed to allocate memory for mgmt_check_supported_fw"
+			 "\n");
+		return -1;
+	}
+	nonemb_cmd.size = sizeof(struct be_mgmt_controller_attributes);
+	req = nonemb_cmd.va;
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+	be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+			   OPCODE_COMMON_GET_CNTL_ATTRIBUTES, sizeof(*req));
+	sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
+	sge->pa_lo = cpu_to_le32(nonemb_cmd.dma & 0xFFFFFFFF);
+	sge->len = cpu_to_le32(nonemb_cmd.size);
+
+	status = be_mbox_notify(ctrl);
+	if (!status) {
+		struct be_mgmt_controller_attributes_resp *resp = nonemb_cmd.va;
+		SE_DEBUG(DBG_LVL_8, "Firmware version of CMD: %s\n",
+			resp->params.hba_attribs.flashrom_version_string);
+		SE_DEBUG(DBG_LVL_8, "Firmware version is : %s\n",
+			resp->params.hba_attribs.firmware_version_string);
+		SE_DEBUG(DBG_LVL_8,
+			"Developer Build, not performing version check...\n");
+
+	} else
+		SE_DEBUG(DBG_LVL_1, " Failed in mgmt_check_supported_fw\n");
+	if (nonemb_cmd.va)
+		pci_free_consistent(ctrl->pdev, nonemb_cmd.size,
+				    nonemb_cmd.va, nonemb_cmd.dma);
+
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
+
+unsigned char mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute)
+{
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct iscsi_cleanup_req *req = embedded_payload(wrb);
+	int status = 0;
+
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+			   OPCODE_COMMON_ISCSI_CLEANUP, sizeof(*req));
+
+	req->chute = chute;
+	req->hdr_ring_id = 0;
+	req->data_ring_id = 0;
+
+	status = be_mbox_notify(ctrl);
+	if (status)
+		shost_printk(KERN_WARNING, phba->shost,
+			     " mgmt_epfw_cleanup , FAILED\n");
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
+
+unsigned char mgmt_invalidate_icds(struct beiscsi_hba *phba,
+				   unsigned int icd, unsigned int cid)
+{
+	struct be_dma_mem nonemb_cmd;
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct be_sge *sge = nonembedded_sgl(wrb);
+	struct invalidate_commands_params_in *req;
+	int status = 0;
+
+	nonemb_cmd.va = pci_alloc_consistent(ctrl->pdev,
+				sizeof(struct invalidate_commands_params_in),
+				&nonemb_cmd.dma);
+	if (nonemb_cmd.va == NULL) {
+		SE_DEBUG(DBG_LVL_1,
+			 "Failed to allocate memory for"
+			 "mgmt_invalidate_icds \n");
+		return -1;
+	}
+	nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);
+	req = nonemb_cmd.va;
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+
+	be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+			OPCODE_COMMON_ISCSI_ERROR_RECOVERY_INVALIDATE_COMMANDS,
+			sizeof(*req));
+	req->ref_handle = 0;
+	req->cleanup_type = CMD_ISCSI_COMMAND_INVALIDATE;
+	req->icd_count = 0;
+	req->table[req->icd_count].icd = icd;
+	req->table[req->icd_count].cid = cid;
+	sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd.dma));
+	sge->pa_lo = cpu_to_le32(nonemb_cmd.dma & 0xFFFFFFFF);
+	sge->len = cpu_to_le32(nonemb_cmd.size);
+
+	status = be_mbox_notify(ctrl);
+	if (status)
+		SE_DEBUG(DBG_LVL_1, "ICDS Invalidation Failed\n");
+	spin_unlock(&ctrl->mbox_lock);
+	if (nonemb_cmd.va)
+		pci_free_consistent(ctrl->pdev, nonemb_cmd.size,
+				    nonemb_cmd.va, nonemb_cmd.dma);
+	return status;
+}
+
+unsigned char mgmt_invalidate_connection(struct beiscsi_hba *phba,
+					 struct beiscsi_endpoint *beiscsi_ep,
+					 unsigned short cid,
+					 unsigned short issue_reset,
+					 unsigned short savecfg_flag)
+{
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct iscsi_invalidate_connection_params_in *req =
+						embedded_payload(wrb);
+	int status = 0;
+
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI_INI,
+			   OPCODE_ISCSI_INI_DRIVER_INVALIDATE_CONNECTION,
+			   sizeof(*req));
+	req->session_handle = beiscsi_ep->fw_handle;
+	req->cid = cid;
+	if (issue_reset)
+		req->cleanup_type = CMD_ISCSI_CONNECTION_ISSUE_TCP_RST;
+	else
+		req->cleanup_type = CMD_ISCSI_CONNECTION_INVALIDATE;
+	req->save_cfg = savecfg_flag;
+	status = be_mbox_notify(ctrl);
+	if (status)
+		SE_DEBUG(DBG_LVL_1, "Invalidation Failed\n");
+
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
+
+unsigned char mgmt_upload_connection(struct beiscsi_hba *phba,
+				unsigned short cid, unsigned int upload_flag)
+{
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct tcp_upload_params_in *req = embedded_payload(wrb);
+	int status = 0;
+
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+	be_cmd_hdr_prepare(&req->hdr, CMD_COMMON_TCP_UPLOAD,
+			   OPCODE_COMMON_TCP_UPLOAD, sizeof(*req));
+	req->id = (unsigned short)cid;
+	req->upload_type = (unsigned char)upload_flag;
+	status = be_mbox_notify(ctrl);
+	if (status)
+		SE_DEBUG(DBG_LVL_1, "mgmt_upload_connection Failed\n");
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
+
+int mgmt_open_connection(struct beiscsi_hba *phba,
+			 struct sockaddr *dst_addr,
+			 struct beiscsi_endpoint *beiscsi_ep)
+{
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_context_memory *phwi_context;
+	struct sockaddr_in *daddr_in = (struct sockaddr_in *)dst_addr;
+	struct sockaddr_in6 *daddr_in6 = (struct sockaddr_in6 *)dst_addr;
+	struct be_ctrl_info *ctrl = &phba->ctrl;
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct tcp_connect_and_offload_in *req = embedded_payload(wrb);
+	unsigned short def_hdr_id;
+	unsigned short def_data_id;
+	struct phys_addr template_address = { 0, 0 };
+	struct phys_addr *ptemplate_address;
+	int status = 0;
+	unsigned short cid = beiscsi_ep->ep_cid;
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	phwi_context = phwi_ctrlr->phwi_ctxt;
+	def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba);
+	def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba);
+
+	ptemplate_address = &template_address;
+	ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address);
+	spin_lock(&ctrl->mbox_lock);
+	memset(wrb, 0, sizeof(*wrb));
+
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
+			   OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD,
+			   sizeof(*req));
+	if (dst_addr->sa_family == PF_INET) {
+		__be32 s_addr = daddr_in->sin_addr.s_addr;
+		req->ip_address.ip_type = BE2_IPV4;
+		req->ip_address.ip_address[0] = s_addr & 0x000000ff;
+		req->ip_address.ip_address[1] = (s_addr & 0x0000ff00) >> 8;
+		req->ip_address.ip_address[2] = (s_addr & 0x00ff0000) >> 16;
+		req->ip_address.ip_address[3] = (s_addr & 0xff000000) >> 24;
+		req->tcp_port = ntohs(daddr_in->sin_port);
+		beiscsi_ep->dst_addr = daddr_in->sin_addr.s_addr;
+		beiscsi_ep->dst_tcpport = ntohs(daddr_in->sin_port);
+		beiscsi_ep->ip_type = BE2_IPV4;
+	} else if (dst_addr->sa_family == PF_INET6) {
+		req->ip_address.ip_type = BE2_IPV6;
+		memcpy(&req->ip_address.ip_address,
+		       &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
+		req->tcp_port = ntohs(daddr_in6->sin6_port);
+		beiscsi_ep->dst_tcpport = ntohs(daddr_in6->sin6_port);
+		memcpy(&beiscsi_ep->dst6_addr,
+		       &daddr_in6->sin6_addr.in6_u.u6_addr8, 16);
+		beiscsi_ep->ip_type = BE2_IPV6;
+	} else{
+		shost_printk(KERN_ERR, phba->shost, "unknown addr family %d\n",
+			     dst_addr->sa_family);
+		spin_unlock(&ctrl->mbox_lock);
+		return -EINVAL;
+
+	}
+	req->cid = cid;
+	req->cq_id = phwi_context->be_cq.id;
+	req->defq_id = def_hdr_id;
+	req->hdr_ring_id = def_hdr_id;
+	req->data_ring_id = def_data_id;
+	req->do_offload = 1;
+	req->dataout_template_pa.lo = ptemplate_address->lo;
+	req->dataout_template_pa.hi = ptemplate_address->hi;
+	status = be_mbox_notify(ctrl);
+	if (!status) {
+		struct iscsi_endpoint *ep;
+		struct tcp_connect_and_offload_out *ptcpcnct_out =
+							embedded_payload(wrb);
+
+		ep = phba->ep_array[ptcpcnct_out->cid];
+		beiscsi_ep = ep->dd_data;
+		beiscsi_ep->fw_handle = 0;
+		beiscsi_ep->cid_vld = 1;
+		SE_DEBUG(DBG_LVL_8, "mgmt_open_connection Success\n");
+	} else
+		SE_DEBUG(DBG_LVL_1, "mgmt_open_connection Failed\n");
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
diff --git a/drivers/scsi/be2iscsi/be_mgmt.h b/drivers/scsi/be2iscsi/be_mgmt.h
new file mode 100644
index 0000000..00e816e
--- /dev/null
+++ b/drivers/scsi/be2iscsi/be_mgmt.h
@@ -0,0 +1,249 @@
+/**
+ * Copyright (C) 2005 - 2009 ServerEngines
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.  The full GNU General
+ * Public License is included in this distribution in the file called COPYING.
+ *
+ * Written by: Jayamohan Kallickal (jayamohank@serverengines.com)
+ *
+ * Contact Information:
+ * linux-drivers@serverengines.com
+ *
+ * ServerEngines
+ * 209 N. Fair Oaks Ave
+ * Sunnyvale, CA 94085
+ *
+ */
+
+#ifndef _BEISCSI_MGMT_
+#define _BEISCSI_MGMT_
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include "be_iscsi.h"
+#include "be_main.h"
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_mcc_sge {
+	u8 pa_lo[32];		/* dword 0 */
+	u8 pa_hi[32];		/* dword 1 */
+	u8 length[32];		/* DWORD 2 */
+} __packed;
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_mcc_wrb_payload {
+	union {
+		struct amap_mcc_sge sgl[19];
+		u8 embedded[59 * 32];	/* DWORDS 57 to 115 */
+	} u;
+} __packed;
+
+/**
+ * Pseudo amap definition in which each bit of the actual structure is defined
+ * as a byte: used to calculate offset/shift/mask of each field
+ */
+struct amap_mcc_wrb {
+	u8 embedded;		/* DWORD 0 */
+	u8 rsvd0[2];		/* DWORD 0 */
+	u8 sge_count[5];	/* DWORD 0 */
+	u8 rsvd1[16];		/* DWORD 0 */
+	u8 special[8];		/* DWORD 0 */
+	u8 payload_length[32];
+	u8 tag[64];		/* DWORD 2 */
+	u8 rsvd2[32];		/* DWORD 4 */
+	struct amap_mcc_wrb_payload payload;
+};
+
+struct mcc_sge {
+	u32 pa_lo;		/* dword 0 */
+	u32 pa_hi;		/* dword 1 */
+	u32 length;		/* DWORD 2 */
+} __packed;
+
+struct mcc_wrb_payload {
+	union {
+		struct mcc_sge sgl[19];
+		u32 embedded[59];	/* DWORDS 57 to 115 */
+	} u;
+} __packed;
+
+#define MCC_WRB_EMBEDDED_MASK                0x00000001
+
+struct mcc_wrb {
+	u32 dw[0];		/* DWORD 0 */
+	u32 payload_length;
+	u32 tag[2];		/* DWORD 2 */
+	u32 rsvd2[1];		/* DWORD 4 */
+	struct mcc_wrb_payload payload;
+};
+
+unsigned char mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute);
+int mgmt_open_connection(struct beiscsi_hba *phba, struct sockaddr *dst_addr,
+			 struct beiscsi_endpoint *beiscsi_ep);
+
+unsigned char mgmt_upload_connection(struct beiscsi_hba *phba,
+				     unsigned short cid,
+				     unsigned int upload_flag);
+unsigned char mgmt_invalidate_icds(struct beiscsi_hba *phba,
+				   unsigned int icd, unsigned int cid);
+
+struct iscsi_invalidate_connection_params_in {
+	struct be_cmd_req_hdr hdr;
+	unsigned int session_handle;
+	unsigned short cid;
+	unsigned short unused;
+	unsigned short cleanup_type;
+	unsigned short save_cfg;
+} __packed;
+
+struct iscsi_invalidate_connection_params_out {
+	unsigned int session_handle;
+	unsigned short cid;
+	unsigned short unused;
+} __packed;
+
+union iscsi_invalidate_connection_params {
+	struct iscsi_invalidate_connection_params_in request;
+	struct iscsi_invalidate_connection_params_out response;
+} __packed;
+
+struct invalidate_command_table {
+	unsigned short icd;
+	unsigned short cid;
+} __packed;
+
+struct invalidate_commands_params_in {
+	struct be_cmd_req_hdr hdr;
+	unsigned int ref_handle;
+	unsigned int icd_count;
+	struct invalidate_command_table table[128];
+	unsigned short cleanup_type;
+	unsigned short unused;
+} __packed;
+
+struct invalidate_commands_params_out {
+	unsigned int ref_handle;
+	unsigned int icd_count;
+	unsigned int icd_status[128];
+} __packed;
+
+union invalidate_commands_params {
+	struct invalidate_commands_params_in request;
+	struct invalidate_commands_params_out response;
+} __packed;
+
+struct mgmt_hba_attributes {
+	u8 flashrom_version_string[32];
+	u8 manufacturer_name[32];
+	u32 supported_modes;
+	u8 seeprom_version_lo;
+	u8 seeprom_version_hi;
+	u8 rsvd0[2];
+	u32 fw_cmd_data_struct_version;
+	u32 ep_fw_data_struct_version;
+	u32 future_reserved[12];
+	u32 default_extended_timeout;
+	u8 controller_model_number[32];
+	u8 controller_description[64];
+	u8 controller_serial_number[32];
+	u8 ip_version_string[32];
+	u8 firmware_version_string[32];
+	u8 bios_version_string[32];
+	u8 redboot_version_string[32];
+	u8 driver_version_string[32];
+	u8 fw_on_flash_version_string[32];
+	u32 functionalities_supported;
+	u16 max_cdblength;
+	u8 asic_revision;
+	u8 generational_guid[16];
+	u8 hba_port_count;
+	u16 default_link_down_timeout;
+	u8 iscsi_ver_min_max;
+	u8 multifunction_device;
+	u8 cache_valid;
+	u8 hba_status;
+	u8 max_domains_supported;
+	u8 phy_port;
+	u32 firmware_post_status;
+	u32 hba_mtu[8];
+	u32 future_u32[4];
+} __packed;
+
+struct mgmt_controller_attributes {
+	struct mgmt_hba_attributes hba_attribs;
+	u16 pci_vendor_id;
+	u16 pci_device_id;
+	u16 pci_sub_vendor_id;
+	u16 pci_sub_system_id;
+	u8 pci_bus_number;
+	u8 pci_device_number;
+	u8 pci_function_number;
+	u8 interface_type;
+	u64 unique_identifier;
+	u8 netfilters;
+	u8 rsvd0[3];
+	u8 future_u32[4];
+} __packed;
+
+struct be_mgmt_controller_attributes {
+	struct be_cmd_req_hdr hdr;
+	struct mgmt_controller_attributes params;
+} __packed;
+
+struct be_mgmt_controller_attributes_resp {
+	struct be_cmd_resp_hdr hdr;
+	struct mgmt_controller_attributes params;
+} __packed;
+
+/* configuration management */
+
+#define GET_MGMT_CONTROLLER_WS(phba)    (phba->pmgmt_ws)
+
+/* MGMT CMD flags */
+
+#define MGMT_CMDH_FREE                (1<<0)
+
+/*  --- MGMT_ERROR_CODES --- */
+/*  Error Codes returned in the status field of the CMD response header */
+#define MGMT_STATUS_SUCCESS 0	/* The CMD completed without errors */
+#define MGMT_STATUS_FAILED 1	/* Error status in the Status field of */
+				/* the CMD_RESPONSE_HEADER  */
+
+#define ISCSI_GET_PDU_TEMPLATE_ADDRESS(pc, pa) {\
+    pa->lo = phba->init_mem[ISCSI_MEM_GLOBAL_HEADER].mem_array[0].\
+					bus_address.u.a32.address_lo;  \
+    pa->hi = phba->init_mem[ISCSI_MEM_GLOBAL_HEADER].mem_array[0].\
+					bus_address.u.a32.address_hi;  \
+}
+
+struct beiscsi_endpoint {
+	struct beiscsi_hba *phba;
+	struct beiscsi_sess *sess;
+	struct beiscsi_conn *conn;
+	unsigned short ip_type;
+	char dst6_addr[ISCSI_ADDRESS_BUF_LEN];
+	unsigned long dst_addr;
+	unsigned short ep_cid;
+	unsigned int fw_handle;
+	u16 dst_tcpport;
+	u16 cid_vld;
+};
+
+unsigned char mgmt_get_fw_config(struct be_ctrl_info *ctrl,
+				 struct beiscsi_hba *phba);
+
+unsigned char mgmt_invalidate_connection(struct beiscsi_hba *phba,
+					 struct beiscsi_endpoint *beiscsi_ep,
+					 unsigned short cid,
+					 unsigned short issue_reset,
+					 unsigned short savecfg_flag);
+#endif