diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index dc73a2f..1f3873a 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -45,6 +45,11 @@
 
 #define MAX_HBAEVT	32
 
+enum lpfc_polling_flags {
+	ENABLE_FCP_RING_POLLING = 0x1,
+	DISABLE_FCP_RING_INT    = 0x2
+};
+
 /* Provide DMA memory definitions the driver uses per port instance. */
 struct lpfc_dmabuf {
 	struct list_head list;
@@ -287,6 +292,8 @@
 	uint32_t cfg_fcp_bind_method;
 	uint32_t cfg_discovery_threads;
 	uint32_t cfg_max_luns;
+	uint32_t cfg_poll;
+	uint32_t cfg_poll_tmo;
 	uint32_t cfg_sg_seg_cnt;
 	uint32_t cfg_sg_dma_buf_size;
 
@@ -338,7 +345,9 @@
 #define VPD_PORT            0x8         /* valid vpd port data */
 #define VPD_MASK            0xf         /* mask for any vpd data */
 
+	struct timer_list fcp_poll_timer;
 	struct timer_list els_tmofunc;
+
 	/*
 	 * stat  counters
 	 */
@@ -349,6 +358,7 @@
 	struct lpfc_sysfs_mbox sysfs_mbox;
 
 	/* fastpath list. */
+	spinlock_t scsi_buf_list_lock;
 	struct list_head lpfc_scsi_buf_list;
 	uint32_t total_scsi_bufs;
 	struct list_head lpfc_iocb_list;
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 89e8222..5625a8c 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -278,6 +278,71 @@
 		return -EIO;
 }
 
+static ssize_t
+lpfc_poll_show(struct class_device *cdev, char *buf)
+{
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
+
+	return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
+}
+
+static ssize_t
+lpfc_poll_store(struct class_device *cdev, const char *buf,
+		size_t count)
+{
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];
+	uint32_t creg_val;
+	uint32_t old_val;
+	int val=0;
+
+	if (!isdigit(buf[0]))
+		return -EINVAL;
+
+	if (sscanf(buf, "%i", &val) != 1)
+		return -EINVAL;
+
+	if ((val & 0x3) != val)
+		return -EINVAL;
+
+	spin_lock_irq(phba->host->host_lock);
+
+	old_val = phba->cfg_poll;
+
+	if (val & ENABLE_FCP_RING_POLLING) {
+		if ((val & DISABLE_FCP_RING_INT) &&
+		    !(old_val & DISABLE_FCP_RING_INT)) {
+			creg_val = readl(phba->HCregaddr);
+			creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
+			writel(creg_val, phba->HCregaddr);
+			readl(phba->HCregaddr); /* flush */
+
+			lpfc_poll_start_timer(phba);
+		}
+	} else if (val != 0x0) {
+		spin_unlock_irq(phba->host->host_lock);
+		return -EINVAL;
+	}
+
+	if (!(val & DISABLE_FCP_RING_INT) &&
+	    (old_val & DISABLE_FCP_RING_INT))
+	{
+		spin_unlock_irq(phba->host->host_lock);
+		del_timer(&phba->fcp_poll_timer);
+		spin_lock_irq(phba->host->host_lock);
+		creg_val = readl(phba->HCregaddr);
+		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
+		writel(creg_val, phba->HCregaddr);
+		readl(phba->HCregaddr); /* flush */
+	}
+
+	phba->cfg_poll = val;
+
+	spin_unlock_irq(phba->host->host_lock);
+
+	return strlen(buf);
+}
 
 #define lpfc_param_show(attr)	\
 static ssize_t \
@@ -416,6 +481,15 @@
 static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR,
 			 lpfc_board_online_show, lpfc_board_online_store);
 
+static int lpfc_poll = 0;
+module_param(lpfc_poll, int, 0);
+MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
+		 " 0 - none,"
+		 " 1 - poll with interrupts enabled"
+		 " 3 - poll and disable FCP ring interrupts");
+
+static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
+			 lpfc_poll_show, lpfc_poll_store);
 
 /*
 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
@@ -523,10 +597,10 @@
 # is 0. Default value of cr_count is 1. The cr_count feature is disabled if
 # cr_delay is set to 0.
 */
-LPFC_ATTR(cr_delay, 0, 0, 63, "A count of milliseconds after which an"
+LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an"
 		"interrupt response is generated");
 
-LPFC_ATTR(cr_count, 1, 1, 255, "A count of I/O completions after which an"
+LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an"
 		"interrupt response is generated");
 
 /*
@@ -553,6 +627,13 @@
 LPFC_ATTR_R(max_luns, 256, 1, 32768,
 	     "Maximum number of LUNs per target driver will support");
 
+/*
+# lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring.
+# Value range is [1,255], default value is 10.
+*/
+LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
+	     "Milliseconds driver will wait between polling FCP ring");
+
 struct class_device_attribute *lpfc_host_attrs[] = {
 	&class_device_attr_info,
 	&class_device_attr_serialnum,
@@ -575,11 +656,15 @@
 	&class_device_attr_lpfc_topology,
 	&class_device_attr_lpfc_scan_down,
 	&class_device_attr_lpfc_link_speed,
+	&class_device_attr_lpfc_cr_delay,
+	&class_device_attr_lpfc_cr_count,
 	&class_device_attr_lpfc_fdmi_on,
 	&class_device_attr_lpfc_max_luns,
 	&class_device_attr_nport_evt_cnt,
 	&class_device_attr_management_version,
 	&class_device_attr_board_online,
+	&class_device_attr_lpfc_poll,
+	&class_device_attr_lpfc_poll_tmo,
 	NULL,
 };
 
@@ -1292,6 +1377,9 @@
 	lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
 	lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
 	lpfc_max_luns_init(phba, lpfc_max_luns);
+	lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
+
+	phba->cfg_poll = lpfc_poll;
 
 	/*
 	 * The total number of segments is the configuration value plus 2
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index d527d05..f1e7089 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -143,6 +143,9 @@
 int lpfc_mem_alloc(struct lpfc_hba *);
 void lpfc_mem_free(struct lpfc_hba *);
 
+void lpfc_poll_timeout(unsigned long ptr);
+void lpfc_poll_start_timer(struct lpfc_hba * phba);
+void lpfc_sli_poll_fcp_ring(struct lpfc_hba * hba);
 struct lpfc_iocbq * lpfc_sli_get_iocbq(struct lpfc_hba *);
 void lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocb);
 uint16_t lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocb);
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 766dac2..db3c2ad 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -370,6 +370,10 @@
 	if (psli->num_rings > 3)
 		status |= HC_R3INT_ENA;
 
+	if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
+	    (phba->cfg_poll & DISABLE_FCP_RING_INT))
+		status &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
+
 	writel(status, phba->HCregaddr);
 	readl(phba->HCregaddr); /* flush */
 	spin_unlock_irq(phba->host->host_lock);
@@ -1237,6 +1241,7 @@
 		}
 	}
 
+	del_timer_sync(&phba->fcp_poll_timer);
 	del_timer_sync(&phba->fc_estabtmo);
 	del_timer_sync(&phba->fc_disctmo);
 	del_timer_sync(&phba->fc_fdmitmo);
@@ -1416,6 +1421,10 @@
 	psli->mbox_tmo.function = lpfc_mbox_timeout;
 	psli->mbox_tmo.data = (unsigned long)phba;
 
+	init_timer(&phba->fcp_poll_timer);
+	phba->fcp_poll_timer.function = lpfc_poll_timeout;
+	phba->fcp_poll_timer.data = (unsigned long)phba;
+
 	/*
 	 * Get all the module params for configuring this host and then
 	 * establish the host parameters.
@@ -1530,6 +1539,7 @@
 	host->max_cmd_len = 16;
 
 	/* Initialize the list of scsi buffers used by driver for scsi IO. */
+	spin_lock_init(&phba->scsi_buf_list_lock);
 	INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
 
 	host->transportt = lpfc_transport_template;
@@ -1561,6 +1571,12 @@
 	if (error)
 		goto out_free_irq;
 
+	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
+		spin_lock_irq(phba->host->host_lock);
+		lpfc_poll_start_timer(phba);
+		spin_unlock_irq(phba->host->host_lock);
+	}
+
 	/*
 	 * set fixed host attributes
 	 * Must done after lpfc_sli_hba_setup()
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 7dc7810..c422220 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -151,18 +151,22 @@
 }
 
 struct  lpfc_scsi_buf*
-lpfc_sli_get_scsi_buf(struct lpfc_hba * phba)
+lpfc_get_scsi_buf(struct lpfc_hba * phba)
 {
 	struct  lpfc_scsi_buf * lpfc_cmd = NULL;
 	struct list_head *scsi_buf_list = &phba->lpfc_scsi_buf_list;
+	unsigned long iflag = 0;
 
+	spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 	list_remove_head(scsi_buf_list, lpfc_cmd, struct lpfc_scsi_buf, list);
+	spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 	return  lpfc_cmd;
 }
 
 static void
 lpfc_release_scsi_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb)
 {
+	unsigned long iflag = 0;
 	/*
 	 * There are only two special cases to consider.  (1) the scsi command
 	 * requested scatter-gather usage or (2) the scsi command allocated
@@ -180,8 +184,10 @@
 		 }
 	}
 
+	spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 	psb->pCmd = NULL;
 	list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list);
+	spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 }
 
 static int
@@ -403,7 +409,6 @@
 	struct lpfc_rport_data *rdata = lpfc_cmd->rdata;
 	struct lpfc_nodelist *pnode = rdata->pnode;
 	struct scsi_cmnd *cmd = lpfc_cmd->pCmd;
-	unsigned long iflag;
 
 	lpfc_cmd->result = pIocbOut->iocb.un.ulpWord[4];
 	lpfc_cmd->status = pIocbOut->iocb.ulpStatus;
@@ -457,9 +462,7 @@
 
 	cmd->scsi_done(cmd);
 
-	spin_lock_irqsave(phba->host->host_lock, iflag);
 	lpfc_release_scsi_buf(phba, lpfc_cmd);
-	spin_unlock_irqrestore(phba->host->host_lock, iflag);
 }
 
 static void
@@ -707,6 +710,37 @@
 	return lpfcinfobuf;
 }
 
+static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba)
+{
+	unsigned long  poll_tmo_expires =
+		(jiffies + msecs_to_jiffies(phba->cfg_poll_tmo));
+
+	if (phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt)
+		mod_timer(&phba->fcp_poll_timer,
+			  poll_tmo_expires);
+}
+
+void lpfc_poll_start_timer(struct lpfc_hba * phba)
+{
+	lpfc_poll_rearm_timer(phba);
+}
+
+void lpfc_poll_timeout(unsigned long ptr)
+{
+	struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
+	unsigned long iflag;
+
+	spin_lock_irqsave(phba->host->host_lock, iflag);
+
+	if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
+		lpfc_sli_poll_fcp_ring (phba);
+		if (phba->cfg_poll & DISABLE_FCP_RING_INT)
+			lpfc_poll_rearm_timer(phba);
+	}
+
+	spin_unlock_irqrestore(phba->host->host_lock, iflag);
+}
+
 static int
 lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 {
@@ -733,7 +767,7 @@
 		cmnd->result = ScsiResult(DID_BUS_BUSY, 0);
 		goto out_fail_command;
 	}
-	lpfc_cmd = lpfc_sli_get_scsi_buf (phba);
+	lpfc_cmd = lpfc_get_scsi_buf (phba);
 	if (lpfc_cmd == NULL) {
 		lpfc_printf_log(phba, KERN_INFO, LOG_FCP,
 				"%d:0707 driver's buffer pool is empty, "
@@ -761,11 +795,17 @@
 				&lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB);
 	if (err)
 		goto out_host_busy_free_buf;
+
+	if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
+		lpfc_sli_poll_fcp_ring(phba);
+		if (phba->cfg_poll & DISABLE_FCP_RING_INT)
+			lpfc_poll_rearm_timer(phba);
+	}
+
 	return 0;
 
  out_host_busy_free_buf:
 	lpfc_release_scsi_buf(phba, lpfc_cmd);
-	cmnd->host_scribble = NULL;
  out_host_busy:
 	return SCSI_MLQUEUE_HOST_BUSY;
 
@@ -839,9 +879,15 @@
 		goto out;
 	}
 
+	if (phba->cfg_poll & DISABLE_FCP_RING_INT)
+		lpfc_sli_poll_fcp_ring (phba);
+
 	/* Wait for abort to complete */
 	while (lpfc_cmd->pCmd == cmnd)
 	{
+		if (phba->cfg_poll & DISABLE_FCP_RING_INT)
+			lpfc_sli_poll_fcp_ring (phba);
+
 		spin_unlock_irq(phba->host->host_lock);
 			schedule_timeout_uninterruptible(LPFC_ABORT_WAIT*HZ);
 		spin_lock_irq(phba->host->host_lock);
@@ -905,7 +951,7 @@
 			break;
 	}
 
-	lpfc_cmd = lpfc_sli_get_scsi_buf (phba);
+	lpfc_cmd = lpfc_get_scsi_buf (phba);
 	if (lpfc_cmd == NULL)
 		goto out;
 
@@ -1001,7 +1047,7 @@
 	lpfc_block_requests(phba);
 	spin_lock_irq(shost->host_lock);
 
-	lpfc_cmd = lpfc_sli_get_scsi_buf (phba);
+	lpfc_cmd = lpfc_get_scsi_buf(phba);
 	if (lpfc_cmd == NULL)
 		goto out;
 
@@ -1136,10 +1182,10 @@
 			break;
 		}
 
-		spin_lock_irqsave(phba->host->host_lock, flags);
+		spin_lock_irqsave(&phba->scsi_buf_list_lock, flags);
 		phba->total_scsi_bufs++;
 		list_add_tail(&scsi_buf->list, &phba->lpfc_scsi_buf_list);
-		spin_unlock_irqrestore(phba->host->host_lock, flags);
+		spin_unlock_irqrestore(&phba->scsi_buf_list_lock, flags);
 	}
 	return 0;
 }
@@ -1163,6 +1209,12 @@
 	 */
 	rport->dev_loss_tmo = phba->cfg_nodev_tmo + 5;
 
+	if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
+		lpfc_sli_poll_fcp_ring(phba);
+		if (phba->cfg_poll & DISABLE_FCP_RING_INT)
+			lpfc_poll_rearm_timer(phba);
+	}
+
 	return 0;
 }
 
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index e2c08c5..7b785ad 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -886,6 +886,182 @@
 	return rc;
 }
 
+static void lpfc_sli_rsp_pointers_error(struct lpfc_hba * phba,
+					struct lpfc_sli_ring * pring)
+{
+	struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
+	/*
+	 * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
+	 * rsp ring <portRspMax>
+	 */
+	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+			"%d:0312 Ring %d handler: portRspPut %d "
+			"is bigger then rsp ring %d\n",
+			phba->brd_no, pring->ringno,
+			le32_to_cpu(pgp->rspPutInx),
+			pring->numRiocb);
+
+	phba->hba_state = LPFC_HBA_ERROR;
+
+	/*
+	 * All error attention handlers are posted to
+	 * worker thread
+	 */
+	phba->work_ha |= HA_ERATT;
+	phba->work_hs = HS_FFER3;
+	if (phba->work_wait)
+		wake_up(phba->work_wait);
+
+	return;
+}
+
+void lpfc_sli_poll_fcp_ring(struct lpfc_hba * phba)
+{
+	struct lpfc_sli      * psli   = &phba->sli;
+	struct lpfc_sli_ring * pring = &psli->ring[LPFC_FCP_RING];
+	IOCB_t *irsp = NULL;
+	IOCB_t *entry = NULL;
+	struct lpfc_iocbq *cmdiocbq = NULL;
+	struct lpfc_iocbq rspiocbq;
+	struct lpfc_pgp *pgp;
+	uint32_t status;
+	uint32_t portRspPut, portRspMax;
+	int type;
+	uint32_t rsp_cmpl = 0;
+	void __iomem *to_slim;
+	uint32_t ha_copy;
+
+	pring->stats.iocb_event++;
+
+	/* The driver assumes SLI-2 mode */
+	pgp =  &phba->slim2p->mbx.us.s2.port[pring->ringno];
+
+	/*
+	 * The next available response entry should never exceed the maximum
+	 * entries.  If it does, treat it as an adapter hardware error.
+	 */
+	portRspMax = pring->numRiocb;
+	portRspPut = le32_to_cpu(pgp->rspPutInx);
+	if (unlikely(portRspPut >= portRspMax)) {
+		lpfc_sli_rsp_pointers_error(phba, pring);
+		return;
+	}
+
+	rmb();
+	while (pring->rspidx != portRspPut) {
+
+		entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
+
+		if (++pring->rspidx >= portRspMax)
+			pring->rspidx = 0;
+
+		lpfc_sli_pcimem_bcopy((uint32_t *) entry,
+				      (uint32_t *) &rspiocbq.iocb,
+				      sizeof (IOCB_t));
+		irsp = &rspiocbq.iocb;
+		type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
+		pring->stats.iocb_rsp++;
+		rsp_cmpl++;
+
+		if (unlikely(irsp->ulpStatus)) {
+			/* Rsp ring <ringno> error: IOCB */
+			lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+					"%d:0326 Rsp Ring %d error: IOCB Data: "
+					"x%x x%x x%x x%x x%x x%x x%x x%x\n",
+					phba->brd_no, pring->ringno,
+					irsp->un.ulpWord[0],
+					irsp->un.ulpWord[1],
+					irsp->un.ulpWord[2],
+					irsp->un.ulpWord[3],
+					irsp->un.ulpWord[4],
+					irsp->un.ulpWord[5],
+					*(((uint32_t *) irsp) + 6),
+					*(((uint32_t *) irsp) + 7));
+		}
+
+		switch (type) {
+		case LPFC_ABORT_IOCB:
+		case LPFC_SOL_IOCB:
+			/*
+			 * Idle exchange closed via ABTS from port.  No iocb
+			 * resources need to be recovered.
+			 */
+			if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
+				printk(KERN_INFO "%s: IOCB cmd 0x%x processed."
+				       " Skipping completion\n", __FUNCTION__,
+				       irsp->ulpCommand);
+				break;
+			}
+
+			cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
+							 &rspiocbq);
+			if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
+				(cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
+						      &rspiocbq);
+			}
+			break;
+		default:
+			if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
+				char adaptermsg[LPFC_MAX_ADPTMSG];
+				memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
+				memcpy(&adaptermsg[0], (uint8_t *) irsp,
+				       MAX_MSG_DATA);
+				dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s",
+					 phba->brd_no, adaptermsg);
+			} else {
+				/* Unknown IOCB command */
+				lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+						"%d:0321 Unknown IOCB command "
+						"Data: x%x, x%x x%x x%x x%x\n",
+						phba->brd_no, type,
+						irsp->ulpCommand,
+						irsp->ulpStatus,
+						irsp->ulpIoTag,
+						irsp->ulpContext);
+			}
+			break;
+		}
+
+		/*
+		 * The response IOCB has been processed.  Update the ring
+		 * pointer in SLIM.  If the port response put pointer has not
+		 * been updated, sync the pgp->rspPutInx and fetch the new port
+		 * response put pointer.
+		 */
+		to_slim = phba->MBslimaddr +
+			(SLIMOFF + (pring->ringno * 2) + 1) * 4;
+		writeb(pring->rspidx, to_slim);
+
+		if (pring->rspidx == portRspPut)
+			portRspPut = le32_to_cpu(pgp->rspPutInx);
+	}
+
+	ha_copy = readl(phba->HAregaddr);
+	ha_copy >>= (LPFC_FCP_RING * 4);
+
+	if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) {
+		pring->stats.iocb_rsp_full++;
+		status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4));
+		writel(status, phba->CAregaddr);
+		readl(phba->CAregaddr);
+	}
+	if ((ha_copy & HA_R0CE_RSP) &&
+	    (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
+		pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
+		pring->stats.iocb_cmd_empty++;
+
+		/* Force update of the local copy of cmdGetInx */
+		pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
+		lpfc_sli_resume_iocb(phba, pring);
+
+		if ((pring->lpfc_sli_cmd_available))
+			(pring->lpfc_sli_cmd_available) (phba, pring);
+
+	}
+
+	return;
+}
+
 /*
  * This routine presumes LPFC_FCP_RING handling and doesn't bother
  * to check it explicitly.
@@ -917,24 +1093,7 @@
 	portRspMax = pring->numRiocb;
 	portRspPut = le32_to_cpu(pgp->rspPutInx);
 	if (unlikely(portRspPut >= portRspMax)) {
-		/*
-		 * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
-		 * rsp ring <portRspMax>
-		 */
-		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
-				"%d:0312 Ring %d handler: portRspPut %d "
-				"is bigger then rsp ring %d\n",
-				phba->brd_no, pring->ringno, portRspPut,
-				portRspMax);
-
-		phba->hba_state = LPFC_HBA_ERROR;
-
-		/* All error attention handlers are posted to worker thread */
-		phba->work_ha |= HA_ERATT;
-		phba->work_hs = HS_FFER3;
-		if (phba->work_wait)
-			wake_up(phba->work_wait);
-
+		lpfc_sli_rsp_pointers_error(phba, pring);
 		spin_unlock_irqrestore(phba->host->host_lock, iflag);
 		return 1;
 	}
@@ -947,6 +1106,10 @@
 		 * network byte order and pci byte orders are different.
 		 */
 		entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
+
+		if (++pring->rspidx >= portRspMax)
+			pring->rspidx = 0;
+
 		lpfc_sli_pcimem_bcopy((uint32_t *) entry,
 				      (uint32_t *) &rspiocbq.iocb,
 				      sizeof (IOCB_t));
@@ -1020,9 +1183,6 @@
 		 * been updated, sync the pgp->rspPutInx and fetch the new port
 		 * response put pointer.
 		 */
-		if (++pring->rspidx >= portRspMax)
-			pring->rspidx = 0;
-
 		to_slim = phba->MBslimaddr +
 			(SLIMOFF + (pring->ringno * 2) + 1) * 4;
 		writel(pring->rspidx, to_slim);
@@ -2615,6 +2775,7 @@
 	DECLARE_WAIT_QUEUE_HEAD(done_q);
 	long timeleft, timeout_req = 0;
 	int retval = IOCB_SUCCESS;
+	uint32_t creg_val;
 
 	/*
 	 * If the caller has provided a response iocbq buffer, then context2
@@ -2630,6 +2791,13 @@
 	piocb->context_un.wait_queue = &done_q;
 	piocb->iocb_flag &= ~LPFC_IO_WAKE;
 
+	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
+		creg_val = readl(phba->HCregaddr);
+		creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
+		writel(creg_val, phba->HCregaddr);
+		readl(phba->HCregaddr); /* flush */
+	}
+
 	retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0);
 	if (retval == IOCB_SUCCESS) {
 		timeout_req = timeout * HZ;
@@ -2663,6 +2831,13 @@
 		retval = IOCB_ERROR;
 	}
 
+	if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
+		creg_val = readl(phba->HCregaddr);
+		creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
+		writel(creg_val, phba->HCregaddr);
+		readl(phba->HCregaddr); /* flush */
+	}
+
 	if (prspiocbq)
 		piocb->context2 = NULL;