[SCSI] qla2xxx: Code changes for qla data structure refactoring

Following changes have been made:

1. Outstanding commands are based on a request queue, scsi_qla_host
   does not maintain it anymore.

2. start_scsi is accessed via isp_ops struct instead of direct
   invocation.

3. Interrupt registrations are done using response queue instead of
   device id.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

6 files changed, 1749 insertions, 1551 deletions

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 4218f20f5ed5..7bee87f90f6d 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -35,7 +35,7 @@ static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
 
 static int qla2x00_restart_isp(scsi_qla_host_t *);
 
-static int qla2x00_find_new_loop_id(scsi_qla_host_t *ha, fc_port_t *dev);
+static int qla2x00_find_new_loop_id(scsi_qla_host_t *, fc_port_t *);
 
 static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
 static int qla84xx_init_chip(scsi_qla_host_t *);
@@ -55,77 +55,77 @@ static int qla84xx_init_chip(scsi_qla_host_t *);
 *      0 = success
 */
 int
-qla2x00_initialize_adapter(scsi_qla_host_t *ha)
+qla2x00_initialize_adapter(scsi_qla_host_t *vha)
 {
 	int	rval;
-
+	struct qla_hw_data *ha = vha->hw;
 	/* Clear adapter flags. */
-	ha->flags.online = 0;
-	ha->flags.reset_active = 0;
-	atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
-	atomic_set(&ha->loop_state, LOOP_DOWN);
-	ha->device_flags = DFLG_NO_CABLE;
-	ha->dpc_flags = 0;
-	ha->flags.management_server_logged_in = 0;
-	ha->marker_needed = 0;
+	vha->flags.online = 0;
+	vha->flags.reset_active = 0;
+	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
+	atomic_set(&vha->loop_state, LOOP_DOWN);
+	vha->device_flags = DFLG_NO_CABLE;
+	vha->dpc_flags = 0;
+	vha->flags.management_server_logged_in = 0;
+	vha->marker_needed = 0;
 	ha->mbx_flags = 0;
 	ha->isp_abort_cnt = 0;
 	ha->beacon_blink_led = 0;
-	set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
+	set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 
 	qla_printk(KERN_INFO, ha, "Configuring PCI space...\n");
-	rval = ha->isp_ops->pci_config(ha);
+	rval = ha->isp_ops->pci_config(vha);
 	if (rval) {
 		DEBUG2(printk("scsi(%ld): Unable to configure PCI space.\n",
-		    ha->host_no));
+		    vha->host_no));
 		return (rval);
 	}
 
-	ha->isp_ops->reset_chip(ha);
+	ha->isp_ops->reset_chip(vha);
 
-	rval = qla2xxx_get_flash_info(ha);
+	rval = qla2xxx_get_flash_info(vha);
 	if (rval) {
 		DEBUG2(printk("scsi(%ld): Unable to validate FLASH data.\n",
-		    ha->host_no));
+		    vha->host_no));
 		return (rval);
 	}
 
-	ha->isp_ops->get_flash_version(ha, ha->request_ring);
+	ha->isp_ops->get_flash_version(vha, ha->req->ring);
 
 	qla_printk(KERN_INFO, ha, "Configure NVRAM parameters...\n");
 
-	ha->isp_ops->nvram_config(ha);
+	ha->isp_ops->nvram_config(vha);
 
 	if (ha->flags.disable_serdes) {
 		/* Mask HBA via NVRAM settings? */
 		qla_printk(KERN_INFO, ha, "Masking HBA WWPN "
 		    "%02x%02x%02x%02x%02x%02x%02x%02x (via NVRAM).\n",
-		    ha->port_name[0], ha->port_name[1],
-		    ha->port_name[2], ha->port_name[3],
-		    ha->port_name[4], ha->port_name[5],
-		    ha->port_name[6], ha->port_name[7]);
+		    vha->port_name[0], vha->port_name[1],
+		    vha->port_name[2], vha->port_name[3],
+		    vha->port_name[4], vha->port_name[5],
+		    vha->port_name[6], vha->port_name[7]);
 		return QLA_FUNCTION_FAILED;
 	}
 
 	qla_printk(KERN_INFO, ha, "Verifying loaded RISC code...\n");
 
-	if (qla2x00_isp_firmware(ha) != QLA_SUCCESS) {
-		rval = ha->isp_ops->chip_diag(ha);
+	if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
+		rval = ha->isp_ops->chip_diag(vha);
 		if (rval)
 			return (rval);
-		rval = qla2x00_setup_chip(ha);
+		rval = qla2x00_setup_chip(vha);
 		if (rval)
 			return (rval);
 	}
 	if (IS_QLA84XX(ha)) {
-		ha->cs84xx = qla84xx_get_chip(ha);
+		ha->cs84xx = qla84xx_get_chip(vha);
 		if (!ha->cs84xx) {
 			qla_printk(KERN_ERR, ha,
 			    "Unable to configure ISP84XX.\n");
 			return QLA_FUNCTION_FAILED;
 		}
 	}
-	rval = qla2x00_init_rings(ha);
+	rval = qla2x00_init_rings(vha);
 
 	return (rval);
 }
@@ -137,10 +137,11 @@ qla2x00_initialize_adapter(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 int
-qla2100_pci_config(scsi_qla_host_t *ha)
+qla2100_pci_config(scsi_qla_host_t *vha)
 {
 	uint16_t w;
 	unsigned long flags;
+	struct qla_hw_data *ha = vha->hw;
 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 
 	pci_set_master(ha->pdev);
@@ -167,11 +168,12 @@ qla2100_pci_config(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 int
-qla2300_pci_config(scsi_qla_host_t *ha)
+qla2300_pci_config(scsi_qla_host_t *vha)
 {
 	uint16_t	w;
 	unsigned long   flags = 0;
 	uint32_t	cnt;
+	struct qla_hw_data *ha = vha->hw;
 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 
 	pci_set_master(ha->pdev);
@@ -248,10 +250,11 @@ qla2300_pci_config(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 int
-qla24xx_pci_config(scsi_qla_host_t *ha)
+qla24xx_pci_config(scsi_qla_host_t *vha)
 {
 	uint16_t w;
 	unsigned long flags = 0;
+	struct qla_hw_data *ha = vha->hw;
 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 
 	pci_set_master(ha->pdev);
@@ -291,9 +294,10 @@ qla24xx_pci_config(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 int
-qla25xx_pci_config(scsi_qla_host_t *ha)
+qla25xx_pci_config(scsi_qla_host_t *vha)
 {
 	uint16_t w;
+	struct qla_hw_data *ha = vha->hw;
 
 	pci_set_master(ha->pdev);
 	pci_try_set_mwi(ha->pdev);
@@ -321,32 +325,33 @@ qla25xx_pci_config(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 static int
-qla2x00_isp_firmware(scsi_qla_host_t *ha)
+qla2x00_isp_firmware(scsi_qla_host_t *vha)
 {
 	int  rval;
 	uint16_t loop_id, topo, sw_cap;
 	uint8_t domain, area, al_pa;
+	struct qla_hw_data *ha = vha->hw;
 
 	/* Assume loading risc code */
 	rval = QLA_FUNCTION_FAILED;
 
 	if (ha->flags.disable_risc_code_load) {
 		DEBUG2(printk("scsi(%ld): RISC CODE NOT loaded\n",
-		    ha->host_no));
+		    vha->host_no));
 		qla_printk(KERN_INFO, ha, "RISC CODE NOT loaded\n");
 
 		/* Verify checksum of loaded RISC code. */
-		rval = qla2x00_verify_checksum(ha, ha->fw_srisc_address);
+		rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
 		if (rval == QLA_SUCCESS) {
 			/* And, verify we are not in ROM code. */
-			rval = qla2x00_get_adapter_id(ha, &loop_id, &al_pa,
+			rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
 			    &area, &domain, &topo, &sw_cap);
 		}
 	}
 
 	if (rval) {
 		DEBUG2_3(printk("scsi(%ld): **** Load RISC code ****\n",
-		    ha->host_no));
+		    vha->host_no));
 	}
 
 	return (rval);
@@ -359,9 +364,10 @@ qla2x00_isp_firmware(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 void
-qla2x00_reset_chip(scsi_qla_host_t *ha)
+qla2x00_reset_chip(scsi_qla_host_t *vha)
 {
 	unsigned long   flags = 0;
+	struct qla_hw_data *ha = vha->hw;
 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 	uint32_t	cnt;
 	uint16_t	cmd;
@@ -499,10 +505,11 @@ qla2x00_reset_chip(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 static inline void
-qla24xx_reset_risc(scsi_qla_host_t *ha)
+qla24xx_reset_risc(scsi_qla_host_t *vha)
 {
 	int hw_evt = 0;
 	unsigned long flags = 0;
+	struct qla_hw_data *ha = vha->hw;
 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 	uint32_t cnt, d2;
 	uint16_t wd;
@@ -541,7 +548,7 @@ qla24xx_reset_risc(scsi_qla_host_t *ha)
 		barrier();
 	}
 	if (cnt == 0 || hw_evt)
-		qla2xxx_hw_event_log(ha, HW_EVENT_RESET_ERR,
+		qla2xxx_hw_event_log(vha, HW_EVENT_RESET_ERR,
 		    RD_REG_WORD(&reg->mailbox1), RD_REG_WORD(&reg->mailbox2),
 		    RD_REG_WORD(&reg->mailbox3));
 
@@ -571,12 +578,13 @@ qla24xx_reset_risc(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 void
-qla24xx_reset_chip(scsi_qla_host_t *ha)
+qla24xx_reset_chip(scsi_qla_host_t *vha)
 {
+	struct qla_hw_data *ha = vha->hw;
 	ha->isp_ops->disable_intrs(ha);
 
 	/* Perform RISC reset. */
-	qla24xx_reset_risc(ha);
+	qla24xx_reset_risc(vha);
 }
 
 /**
@@ -586,9 +594,10 @@ qla24xx_reset_chip(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 int
-qla2x00_chip_diag(scsi_qla_host_t *ha)
+qla2x00_chip_diag(scsi_qla_host_t *vha)
 {
 	int		rval;
+	struct qla_hw_data *ha = vha->hw;
 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 	unsigned long	flags = 0;
 	uint16_t	data;
@@ -599,7 +608,7 @@ qla2x00_chip_diag(scsi_qla_host_t *ha)
 	rval = QLA_FUNCTION_FAILED;
 
 	DEBUG3(printk("scsi(%ld): Testing device at %lx.\n",
-	    ha->host_no, (u_long)&reg->flash_address));
+	    vha->host_no, (u_long)&reg->flash_address));
 
 	spin_lock_irqsave(&ha->hardware_lock, flags);
 
@@ -662,17 +671,17 @@ qla2x00_chip_diag(scsi_qla_host_t *ha)
 	ha->product_id[3] = mb[4];
 
 	/* Adjust fw RISC transfer size */
-	if (ha->request_q_length > 1024)
+	if (ha->req->length > 1024)
 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
 	else
 		ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
-		    ha->request_q_length;
+		    ha->req->length;
 
 	if (IS_QLA2200(ha) &&
 	    RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
 		/* Limit firmware transfer size with a 2200A */
 		DEBUG3(printk("scsi(%ld): Found QLA2200A chip.\n",
-		    ha->host_no));
+		    vha->host_no));
 
 		ha->device_type |= DT_ISP2200A;
 		ha->fw_transfer_size = 128;
@@ -681,11 +690,11 @@ qla2x00_chip_diag(scsi_qla_host_t *ha)
 	/* Wrap Incoming Mailboxes Test. */
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
-	DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", ha->host_no));
-	rval = qla2x00_mbx_reg_test(ha);
+	DEBUG3(printk("scsi(%ld): Checking mailboxes.\n", vha->host_no));
+	rval = qla2x00_mbx_reg_test(vha);
 	if (rval) {
 		DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
-		    ha->host_no));
+		    vha->host_no));
 		qla_printk(KERN_WARNING, ha,
 		    "Failed mailbox send register test\n");
 	}
@@ -698,7 +707,7 @@ qla2x00_chip_diag(scsi_qla_host_t *ha)
 chip_diag_failed:
 	if (rval)
 		DEBUG2_3(printk("scsi(%ld): Chip diagnostics **** FAILED "
-		    "****\n", ha->host_no));
+		    "****\n", vha->host_no));
 
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
@@ -712,19 +721,20 @@ chip_diag_failed:
  * Returns 0 on success.
  */
 int
-qla24xx_chip_diag(scsi_qla_host_t *ha)
+qla24xx_chip_diag(scsi_qla_host_t *vha)
 {
 	int rval;
+	struct qla_hw_data *ha = vha->hw;
 
 	/* Perform RISC reset. */
-	qla24xx_reset_risc(ha);
+	qla24xx_reset_risc(vha);
 
-	ha->fw_transfer_size = REQUEST_ENTRY_SIZE * ha->request_q_length;
+	ha->fw_transfer_size = REQUEST_ENTRY_SIZE * ha->req->length;
 
-	rval = qla2x00_mbx_reg_test(ha);
+	rval = qla2x00_mbx_reg_test(vha);
 	if (rval) {
 		DEBUG(printk("scsi(%ld): Failed mailbox send register test\n",
-		    ha->host_no));
+		    vha->host_no));
 		qla_printk(KERN_WARNING, ha,
 		    "Failed mailbox send register test\n");
 	} else {
@@ -736,13 +746,14 @@ qla24xx_chip_diag(scsi_qla_host_t *ha)
 }
 
 void
-qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
+qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
 {
 	int rval;
 	uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
 	    eft_size, fce_size;
 	dma_addr_t tc_dma;
 	void *tc;
+	struct qla_hw_data *ha = vha->hw;
 
 	if (ha->fw_dump) {
 		qla_printk(KERN_WARNING, ha,
@@ -778,7 +789,7 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *ha)
 		}
 
 		memset(tc, 0, FCE_SIZE);
-		rval = qla2x00_enable_fce_trace(ha, tc_dma, FCE_NUM_BUFFERS,
+		rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
 		    ha->fce_mb, &ha->fce_bufs);
 		if (rval) {
 			qla_printk(KERN_WARNING, ha, "Unable to initialize "
@@ -807,7 +818,7 @@ try_eft:
 		}
 
 		memset(tc, 0, EFT_SIZE);
-		rval = qla2x00_enable_eft_trace(ha, tc_dma, EFT_NUM_BUFFERS);
+		rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
 		if (rval) {
 			qla_printk(KERN_WARNING, ha, "Unable to initialize "
 			    "EFT (%d).\n", rval);
@@ -824,8 +835,8 @@ try_eft:
 		ha->eft = tc;
 	}
 cont_alloc:
-	req_q_size = ha->request_q_length * sizeof(request_t);
-	rsp_q_size = ha->response_q_length * sizeof(response_t);
+	req_q_size = ha->req->length * sizeof(request_t);
+	rsp_q_size = ha->rsp->length * sizeof(response_t);
 
 	dump_size = offsetof(struct qla2xxx_fw_dump, isp);
 	dump_size += fixed_size + mem_size + req_q_size + rsp_q_size +
@@ -875,27 +886,29 @@ cont_alloc:
  * Returns 0 on success.
  */
 static void
-qla2x00_resize_request_q(scsi_qla_host_t *ha)
+qla2x00_resize_request_q(scsi_qla_host_t *vha)
 {
 	int rval;
 	uint16_t fw_iocb_cnt = 0;
 	uint16_t request_q_length = REQUEST_ENTRY_CNT_2XXX_EXT_MEM;
 	dma_addr_t request_dma;
 	request_t *request_ring;
+	struct qla_hw_data *ha = vha->hw;
+	struct req_que *req = ha->req;
 
 	/* Valid only on recent ISPs. */
 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
 		return;
 
 	/* Retrieve IOCB counts available to the firmware. */
-	rval = qla2x00_get_resource_cnts(ha, NULL, NULL, NULL, &fw_iocb_cnt,
-	    &ha->max_npiv_vports);
+	rval = qla2x00_get_resource_cnts(vha, NULL, NULL, NULL, &fw_iocb_cnt,
+					&ha->max_npiv_vports);
 	if (rval)
 		return;
 	/* No point in continuing if current settings are sufficient. */
 	if (fw_iocb_cnt < 1024)
 		return;
-	if (ha->request_q_length >= request_q_length)
+	if (req->length >= request_q_length)
 		return;
 
 	/* Attempt to claim larger area for request queue. */
@@ -909,17 +922,17 @@ qla2x00_resize_request_q(scsi_qla_host_t *ha)
 	qla_printk(KERN_INFO, ha, "Extended memory detected (%d KB)...\n",
 	    (ha->fw_memory_size + 1) / 1024);
 	qla_printk(KERN_INFO, ha, "Resizing request queue depth "
-	    "(%d -> %d)...\n", ha->request_q_length, request_q_length);
+	    "(%d -> %d)...\n", req->length, request_q_length);
 
 	/* Clear old allocations. */
 	dma_free_coherent(&ha->pdev->dev,
-	    (ha->request_q_length + 1) * sizeof(request_t), ha->request_ring,
-	    ha->request_dma);
+	    (req->length + 1) * sizeof(request_t), req->ring,
+	    req->dma);
 
 	/* Begin using larger queue. */
-	ha->request_q_length = request_q_length;
-	ha->request_ring = request_ring;
-	ha->request_dma = request_dma;
+	req->length = request_q_length;
+	req->ring = request_ring;
+	req->dma = request_dma;
 }
 
 /**
@@ -929,10 +942,11 @@ qla2x00_resize_request_q(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 static int
-qla2x00_setup_chip(scsi_qla_host_t *ha)
+qla2x00_setup_chip(scsi_qla_host_t *vha)
 {
 	int rval;
 	uint32_t srisc_address = 0;
+	struct qla_hw_data *ha = vha->hw;
 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 	unsigned long flags;
 
@@ -945,28 +959,27 @@ qla2x00_setup_chip(scsi_qla_host_t *ha)
 	}
 
 	/* Load firmware sequences */
-	rval = ha->isp_ops->load_risc(ha, &srisc_address);
+	rval = ha->isp_ops->load_risc(vha, &srisc_address);
 	if (rval == QLA_SUCCESS) {
 		DEBUG(printk("scsi(%ld): Verifying Checksum of loaded RISC "
-		    "code.\n", ha->host_no));
+		    "code.\n", vha->host_no));
 
-		rval = qla2x00_verify_checksum(ha, srisc_address);
+		rval = qla2x00_verify_checksum(vha, srisc_address);
 		if (rval == QLA_SUCCESS) {
 			/* Start firmware execution. */
 			DEBUG(printk("scsi(%ld): Checksum OK, start "
-			    "firmware.\n", ha->host_no));
+			    "firmware.\n", vha->host_no));
 
-			rval = qla2x00_execute_fw(ha, srisc_address);
+			rval = qla2x00_execute_fw(vha, srisc_address);
 			/* Retrieve firmware information. */
 			if (rval == QLA_SUCCESS && ha->fw_major_version == 0) {
-				qla2x00_get_fw_version(ha,
+				qla2x00_get_fw_version(vha,
 				    &ha->fw_major_version,
 				    &ha->fw_minor_version,
 				    &ha->fw_subminor_version,
 				    &ha->fw_attributes, &ha->fw_memory_size);
 				ha->flags.npiv_supported = 0;
-				if ((IS_QLA24XX(ha) || IS_QLA25XX(ha) ||
-				     IS_QLA84XX(ha)) &&
+				if (IS_QLA2XXX_MIDTYPE(ha) &&
 					 (ha->fw_attributes & BIT_2)) {
 					ha->flags.npiv_supported = 1;
 					if ((!ha->max_npiv_vports) ||
@@ -975,15 +988,15 @@ qla2x00_setup_chip(scsi_qla_host_t *ha)
 						ha->max_npiv_vports =
 						    MIN_MULTI_ID_FABRIC - 1;
 				}
-				qla2x00_resize_request_q(ha);
+				qla2x00_resize_request_q(vha);
 
 				if (ql2xallocfwdump)
-					qla2x00_alloc_fw_dump(ha);
+					qla2x00_alloc_fw_dump(vha);
 			}
 		} else {
 			DEBUG2(printk(KERN_INFO
 			    "scsi(%ld): ISP Firmware failed checksum.\n",
-			    ha->host_no));
+			    vha->host_no));
 		}
 	}
 
@@ -1002,7 +1015,7 @@ qla2x00_setup_chip(scsi_qla_host_t *ha)
 
 	if (rval) {
 		DEBUG2_3(printk("scsi(%ld): Setup chip **** FAILED ****.\n",
-		    ha->host_no));
+		    vha->host_no));
 	}
 
 	return (rval);
@@ -1018,13 +1031,14 @@ qla2x00_setup_chip(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 static void
-qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
+qla2x00_init_response_q_entries(scsi_qla_host_t *vha)
 {
 	uint16_t cnt;
 	response_t *pkt;
+	struct rsp_que *rsp = vha->hw->rsp;
 
-	pkt = ha->response_ring_ptr;
-	for (cnt = 0; cnt < ha->response_q_length; cnt++) {
+	pkt = rsp->ring_ptr;
+	for (cnt = 0; cnt < rsp->length; cnt++) {
 		pkt->signature = RESPONSE_PROCESSED;
 		pkt++;
 	}
@@ -1038,19 +1052,20 @@ qla2x00_init_response_q_entries(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 void
-qla2x00_update_fw_options(scsi_qla_host_t *ha)
+qla2x00_update_fw_options(scsi_qla_host_t *vha)
 {
 	uint16_t swing, emphasis, tx_sens, rx_sens;
+	struct qla_hw_data *ha = vha->hw;
 
 	memset(ha->fw_options, 0, sizeof(ha->fw_options));
-	qla2x00_get_fw_options(ha, ha->fw_options);
+	qla2x00_get_fw_options(vha, ha->fw_options);
 
 	if (IS_QLA2100(ha) || IS_QLA2200(ha))
 		return;
 
 	/* Serial Link options. */
 	DEBUG3(printk("scsi(%ld): Serial link options:\n",
-	    ha->host_no));
+	    vha->host_no));
 	DEBUG3(qla2x00_dump_buffer((uint8_t *)&ha->fw_seriallink_options,
 	    sizeof(ha->fw_seriallink_options)));
 
@@ -1108,19 +1123,20 @@ qla2x00_update_fw_options(scsi_qla_host_t *ha)
 		ha->fw_options[2] |= BIT_13;
 
 	/* Update firmware options. */
-	qla2x00_set_fw_options(ha, ha->fw_options);
+	qla2x00_set_fw_options(vha, ha->fw_options);
 }
 
 void
-qla24xx_update_fw_options(scsi_qla_host_t *ha)
+qla24xx_update_fw_options(scsi_qla_host_t *vha)
 {
 	int rval;
+	struct qla_hw_data *ha = vha->hw;
 
 	/* Update Serial Link options. */
 	if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
 		return;
 
-	rval = qla2x00_set_serdes_params(ha,
+	rval = qla2x00_set_serdes_params(vha,
 	    le16_to_cpu(ha->fw_seriallink_options24[1]),
 	    le16_to_cpu(ha->fw_seriallink_options24[2]),
 	    le16_to_cpu(ha->fw_seriallink_options24[3]));
@@ -1131,19 +1147,22 @@ qla24xx_update_fw_options(scsi_qla_host_t *ha)
 }
 
 void
-qla2x00_config_rings(struct scsi_qla_host *ha)
+qla2x00_config_rings(struct scsi_qla_host *vha)
 {
+	struct qla_hw_data *ha = vha->hw;
 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
+	struct req_que *req = ha->req;
+	struct rsp_que *rsp = ha->rsp;
 
 	/* Setup ring parameters in initialization control block. */
 	ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
 	ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
-	ha->init_cb->request_q_length = cpu_to_le16(ha->request_q_length);
-	ha->init_cb->response_q_length = cpu_to_le16(ha->response_q_length);
-	ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
-	ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
-	ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
-	ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
+	ha->init_cb->request_q_length = cpu_to_le16(req->length);
+	ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
+	ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
+	ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
+	ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
+	ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
 
 	WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
 	WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
@@ -1153,21 +1172,24 @@ qla2x00_config_rings(struct scsi_qla_host *ha)
 }
 
 void
-qla24xx_config_rings(struct scsi_qla_host *ha)
+qla24xx_config_rings(struct scsi_qla_host *vha)
 {
+	struct qla_hw_data *ha = vha->hw;
 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 	struct init_cb_24xx *icb;
+	struct req_que *req = ha->req;
+	struct rsp_que *rsp = ha->rsp;
 
 	/* Setup ring parameters in initialization control block. */
 	icb = (struct init_cb_24xx *)ha->init_cb;
 	icb->request_q_outpointer = __constant_cpu_to_le16(0);
 	icb->response_q_inpointer = __constant_cpu_to_le16(0);
-	icb->request_q_length = cpu_to_le16(ha->request_q_length);
-	icb->response_q_length = cpu_to_le16(ha->response_q_length);
-	icb->request_q_address[0] = cpu_to_le32(LSD(ha->request_dma));
-	icb->request_q_address[1] = cpu_to_le32(MSD(ha->request_dma));
-	icb->response_q_address[0] = cpu_to_le32(LSD(ha->response_dma));
-	icb->response_q_address[1] = cpu_to_le32(MSD(ha->response_dma));
+	icb->request_q_length = cpu_to_le16(req->length);
+	icb->response_q_length = cpu_to_le16(rsp->length);
+	icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
+	icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
+	icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
+	icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
 
 	WRT_REG_DWORD(&reg->req_q_in, 0);
 	WRT_REG_DWORD(&reg->req_q_out, 0);
@@ -1186,11 +1208,14 @@ qla24xx_config_rings(struct scsi_qla_host *ha)
  * Returns 0 on success.
  */
 static int
-qla2x00_init_rings(scsi_qla_host_t *ha)
+qla2x00_init_rings(scsi_qla_host_t *vha)
 {
 	int	rval;
 	unsigned long flags = 0;
 	int cnt;
+	struct qla_hw_data *ha = vha->hw;
+	struct req_que *req = ha->req;
+	struct rsp_que *rsp = ha->rsp;
 	struct mid_init_cb_24xx *mid_init_cb =
 	    (struct mid_init_cb_24xx *) ha->init_cb;
 
@@ -1198,45 +1223,45 @@ qla2x00_init_rings(scsi_qla_host_t *ha)
 
 	/* Clear outstanding commands array. */
 	for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
-		ha->outstanding_cmds[cnt] = NULL;
+		req->outstanding_cmds[cnt] = NULL;
 
-	ha->current_outstanding_cmd = 0;
+	req->current_outstanding_cmd = 0;
 
 	/* Clear RSCN queue. */
-	ha->rscn_in_ptr = 0;
-	ha->rscn_out_ptr = 0;
+	vha->rscn_in_ptr = 0;
+	vha->rscn_out_ptr = 0;
 
 	/* Initialize firmware. */
-	ha->request_ring_ptr  = ha->request_ring;
-	ha->req_ring_index    = 0;
-	ha->req_q_cnt         = ha->request_q_length;
-	ha->response_ring_ptr = ha->response_ring;
-	ha->rsp_ring_index    = 0;
+	req->ring_ptr  = req->ring;
+	req->ring_index    = 0;
+	req->cnt      = req->length;
+	rsp->ring_ptr = rsp->ring;
+	rsp->ring_index    = 0;
 
 	/* Initialize response queue entries */
-	qla2x00_init_response_q_entries(ha);
+	qla2x00_init_response_q_entries(vha);
 
-	ha->isp_ops->config_rings(ha);
+	ha->isp_ops->config_rings(vha);
 
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
 	/* Update any ISP specific firmware options before initialization. */
-	ha->isp_ops->update_fw_options(ha);
+	ha->isp_ops->update_fw_options(vha);
 
-	DEBUG(printk("scsi(%ld): Issue init firmware.\n", ha->host_no));
+	DEBUG(printk("scsi(%ld): Issue init firmware.\n", vha->host_no));
 
 	if (ha->flags.npiv_supported)
 		mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
 
 	mid_init_cb->options = __constant_cpu_to_le16(BIT_1);
 
-	rval = qla2x00_init_firmware(ha, ha->init_cb_size);
+	rval = qla2x00_init_firmware(vha, ha->init_cb_size);
 	if (rval) {
 		DEBUG2_3(printk("scsi(%ld): Init firmware **** FAILED ****.\n",
-		    ha->host_no));
+		    vha->host_no));
 	} else {
 		DEBUG3(printk("scsi(%ld): Init firmware -- success.\n",
-		    ha->host_no));
+		    vha->host_no));
 	}
 
 	return (rval);
@@ -1249,13 +1274,14 @@ qla2x00_init_rings(scsi_qla_host_t *ha)
  * Returns 0 on success.
  */
 static int
-qla2x00_fw_ready(scsi_qla_host_t *ha)
+qla2x00_fw_ready(scsi_qla_host_t *vha)
 {
 	int		rval;
 	unsigned long	wtime, mtime, cs84xx_time;
 	uint16_t	min_wait;	/* Minimum wait time if loop is down */
 	uint16_t	wait_time;	/* Wait time if loop is coming ready */
 	uint16_t	state[3];
+	struct qla_hw_data *ha = vha->hw;
 
 	rval = QLA_SUCCESS;
 
@@ -1277,29 +1303,29 @@ qla2x00_fw_ready(scsi_qla_host_t *ha)
 	wtime = jiffies + (wait_time * HZ);
 
 	/* Wait for ISP to finish LIP */
-	if (!ha->flags.init_done)
+	if (!vha->flags.init_done)
  		qla_printk(KERN_INFO, ha, "Waiting for LIP to complete...\n");
 
 	DEBUG3(printk("scsi(%ld): Waiting for LIP to complete...\n",
-	    ha->host_no));
+	    vha->host_no));
 
 	do {
-		rval = qla2x00_get_firmware_state(ha, state);
+		rval = qla2x00_get_firmware_state(vha, state);
 		if (rval == QLA_SUCCESS) {
 			if (state[0] < FSTATE_LOSS_OF_SYNC) {
-				ha->device_flags &= ~DFLG_NO_CABLE;
+				vha->device_flags &= ~DFLG_NO_CABLE;
 			}
 			if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
 				DEBUG16(printk("scsi(%ld): fw_state=%x "
-				    "84xx=%x.\n", ha->host_no, state[0],
+				    "84xx=%x.\n", vha->host_no, state[0],
 				    state[2]));
 				if ((state[2] & FSTATE_LOGGED_IN) &&
 				     (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
 					DEBUG16(printk("scsi(%ld): Sending "
-					    "verify iocb.\n", ha->host_no));
+					    "verify iocb.\n", vha->host_no));
 
 					cs84xx_time = jiffies;
-					rval = qla84xx_init_chip(ha);
+					rval = qla84xx_init_chip(vha);
 					if (rval != QLA_SUCCESS)
 						break;
 
@@ -1309,13 +1335,13 @@ qla2x00_fw_ready(scsi_qla_host_t *ha)
 					mtime += cs84xx_time;
 					DEBUG16(printk("scsi(%ld): Increasing "
 					    "wait time by %ld. New time %ld\n",
-					    ha->host_no, cs84xx_time, wtime));
+					    vha->host_no, cs84xx_time, wtime));
 				}
 			} else if (state[0] == FSTATE_READY) {
 				DEBUG(printk("scsi(%ld): F/W Ready - OK \n",
-				    ha->host_no));
+				    vha->host_no));
 
-				qla2x00_get_retry_cnt(ha, &ha->retry_count,
+				qla2x00_get_retry_cnt(vha, &ha->retry_count,
 				    &ha->login_timeout, &ha->r_a_tov);
 
 				rval = QLA_SUCCESS;
@@ -1324,7 +1350,7 @@ qla2x00_fw_ready(scsi_qla_host_t *ha)
 
 			rval = QLA_FUNCTION_FAILED;
 
-			if (atomic_read(&ha->loop_down_timer) &&
+			if (atomic_read(&vha->loop_down_timer) &&
 			    state[0] != FSTATE_READY) {
 				/* Loop down. Timeout on min_wait for states
 				 * other than Wait for Login.
@@ -1333,7 +1359,7 @@ qla2x00_fw_ready(scsi_qla_host_t *ha)
 					qla_printk(KERN_INFO, ha,
 					    "Cable is unplugged...\n");
 
-					ha->device_flags |= DFLG_NO_CABLE;
+					vha->device_flags |= DFLG_NO_CABLE;
 					break;
 				}
 			}
@@ -1350,15 +1376,15 @@ qla2x00_fw_ready(scsi_qla_host_t *ha)
 		msleep(500);
 
 		DEBUG3(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
-		    ha->host_no, state[0], jiffies));
+		    vha->host_no, state[0], jiffies));
 	} while (1);
 
 	DEBUG(printk("scsi(%ld): fw_state=%x curr time=%lx.\n",
-	    ha->host_no, state[0], jiffies));
+	    vha->host_no, state[0], jiffies));
 
 	if (rval) {
 		DEBUG2_3(printk("scsi(%ld): Firmware ready **** FAILED ****.\n",
-		    ha->host_no));
+		    vha->host_no));
 	}
 
 	return (rval);
@@ -1378,7 +1404,7 @@ qla2x00_fw_ready(scsi_qla_host_t *ha)
 *      Kernel context.
 */
 static int
-qla2x00_configure_hba(scsi_qla_host_t *ha)
+qla2x00_configure_hba(scsi_qla_host_t *vha)
 {
 	int       rval;
 	uint16_t      loop_id;
@@ -1388,19 +1414,20 @@ qla2x00_configure_hba(scsi_qla_host_t *ha)
 	uint8_t       area;
 	uint8_t       domain;
 	char		connect_type[22];
+	struct qla_hw_data *ha = vha->hw;
 
 	/* Get host addresses. */
-	rval = qla2x00_get_adapter_id(ha,
+	rval = qla2x00_get_adapter_id(vha,
 	    &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
 	if (rval != QLA_SUCCESS) {
-		if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) ||
+		if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
 		    (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
 			DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
-			    __func__, ha->host_no));
+			    __func__, vha->host_no));
 		} else {
 			qla_printk(KERN_WARNING, ha,
 			    "ERROR -- Unable to get host loop ID.\n");
-			set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
+			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 		}
 		return (rval);
 	}
@@ -1411,7 +1438,7 @@ qla2x00_configure_hba(scsi_qla_host_t *ha)
 		return (QLA_FUNCTION_FAILED);
 	}
 
-	ha->loop_id = loop_id;
+	vha->loop_id = loop_id;
 
 	/* initialize */
 	ha->min_external_loopid = SNS_FIRST_LOOP_ID;
@@ -1421,14 +1448,14 @@ qla2x00_configure_hba(scsi_qla_host_t *ha)
 	switch (topo) {
 	case 0:
 		DEBUG3(printk("scsi(%ld): HBA in NL topology.\n",
-		    ha->host_no));
+		    vha->host_no));
 		ha->current_topology = ISP_CFG_NL;
 		strcpy(connect_type, "(Loop)");
 		break;
 
 	case 1:
 		DEBUG3(printk("scsi(%ld): HBA in FL topology.\n",
-		    ha->host_no));
+		    vha->host_no));
 		ha->switch_cap = sw_cap;
 		ha->current_topology = ISP_CFG_FL;
 		strcpy(connect_type, "(FL_Port)");
@@ -1436,7 +1463,7 @@ qla2x00_configure_hba(scsi_qla_host_t *ha)
 
 	case 2:
 		DEBUG3(printk("scsi(%ld): HBA in N P2P topology.\n",
-		    ha->host_no));
+		    vha->host_no));
 		ha->operating_mode = P2P;
 		ha->current_topology = ISP_CFG_N;
 		strcpy(connect_type, "(N_Port-to-N_Port)");
@@ -1444,7 +1471,7 @@ qla2x00_configure_hba(scsi_qla_host_t *ha)
 
 	case 3:
 		DEBUG3(printk("scsi(%ld): HBA in F P2P topology.\n",
-		    ha->host_no));
+		    vha->host_no));
 		ha->switch_cap = sw_cap;
 		ha->operating_mode = P2P;
 		ha->current_topology = ISP_CFG_F;
@@ -1454,7 +1481,7 @@ qla2x00_configure_hba(scsi_qla_host_t *ha)
 	default:
 		DEBUG3(printk("scsi(%ld): HBA in unknown topology %x. "
 		    "Using NL.\n",
-		    ha->host_no, topo));
+		    vha->host_no, topo));
 		ha->current_topology = ISP_CFG_NL;
 		strcpy(connect_type, "(Loop)");
 		break;
@@ -1462,29 +1489,31 @@ qla2x00_configure_hba(scsi_qla_host_t *ha)
 
 	/* Save Host port and loop ID. */
 	/* byte order - Big Endian */
-	ha->d_id.b.domain = domain;
-	ha->d_id.b.area = area;
-	ha->d_id.b.al_pa = al_pa;
+	vha->d_id.b.domain = domain;
+	vha->d_id.b.area = area;
+	vha->d_id.b.al_pa = al_pa;
 
-	if (!ha->flags.init_done)
+	if (!vha->flags.init_done)
  		qla_printk(KERN_INFO, ha,
 		    "Topology - %s, Host Loop address 0x%x\n",
- 		    connect_type, ha->loop_id);
+		    connect_type, vha->loop_id);
 
 	if (rval) {
-		DEBUG2_3(printk("scsi(%ld): FAILED.\n", ha->host_no));
+		DEBUG2_3(printk("scsi(%ld): FAILED.\n", vha->host_no));
 	} else {
-		DEBUG3(printk("scsi(%ld): exiting normally.\n", ha->host_no));
+		DEBUG3(printk("scsi(%ld): exiting normally.\n", vha->host_no));
 	}
 
 	return(rval);
 }
 
 static inline void
-qla2x00_set_model_info(scsi_qla_host_t *ha, uint8_t *model, size_t len, char *def)
+qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
+	char *def)
 {
 	char *st, *en;
 	uint16_t index;
+	struct qla_hw_data *ha = vha->hw;
 
 	if (memcmp(model, BINZERO, len) != 0) {
 		strncpy(ha->model_number, model, len);
@@ -1516,16 +1545,17 @@ qla2x00_set_model_info(scsi_qla_host_t *ha, uint8_t *model, size_t len, char *de
 		}
 	}
 	if (IS_FWI2_CAPABLE(ha))
-		qla2xxx_get_vpd_field(ha, "\x82", ha->model_desc,
+		qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
 		    sizeof(ha->model_desc));
 }
 
 /* On sparc systems, obtain port and node WWN from firmware
  * properties.
  */
-static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, nvram_t *nv)
+static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
 {
 #ifdef CONFIG_SPARC
+	struct qla_hw_data *ha = vha->hw;
 	struct pci_dev *pdev = ha->pdev;
 	struct device_node *dp = pci_device_to_OF_node(pdev);
 	const u8 *val;
@@ -1555,12 +1585,13 @@ static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *ha, nvram_t *nv)
 *      0 = success.
 */
 int
-qla2x00_nvram_config(scsi_qla_host_t *ha)
+qla2x00_nvram_config(scsi_qla_host_t *vha)
 {
 	int             rval;
 	uint8_t         chksum = 0;
 	uint16_t        cnt;
 	uint8_t         *dptr1, *dptr2;
+	struct qla_hw_data *ha = vha->hw;
 	init_cb_t       *icb = ha->init_cb;
 	nvram_t         *nv = ha->nvram;
 	uint8_t         *ptr = ha->nvram;
@@ -1576,11 +1607,11 @@ qla2x00_nvram_config(scsi_qla_host_t *ha)
 			ha->nvram_base = 0x80;
 
 	/* Get NVRAM data and calculate checksum. */
-	ha->isp_ops->read_nvram(ha, ptr, ha->nvram_base, ha->nvram_size);
+	ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
 	for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
 		chksum += *ptr++;
 
-	DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", ha->host_no));
+	DEBUG5(printk("scsi(%ld): Contents of NVRAM\n", vha->host_no));
 	DEBUG5(qla2x00_dump_buffer((uint8_t *)nv, ha->nvram_size));
 
 	/* Bad NVRAM data, set defaults parameters. */
@@ -1594,7 +1625,7 @@ qla2x00_nvram_config(scsi_qla_host_t *ha)
 		    "invalid -- WWPN) defaults.\n");
 
 		if (chksum)
-			qla2xxx_hw_event_log(ha, HW_EVENT_NVRAM_CHKSUM_ERR, 0,
+			qla2xxx_hw_event_log(vha, HW_EVENT_NVRAM_CHKSUM_ERR, 0,
 			    MSW(chksum), LSW(chksum));
 
 		/*
@@ -1631,7 +1662,7 @@ qla2x00_nvram_config(scsi_qla_host_t *ha)