Move xen patchset to new version's subdir.

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.31 / patches.drivers / lpfc-8.2.8.7-update

From: Jamie Wellnitz <jamie.wellnitz@emulex.com>
Subject: Update lpfc to 8.2.8.7
References: bnc#420767

This patch updates the SLES 11 inbox lpfc driver 8.2.8.7, which fixes several
issues we've found in testing on SLES 11 Beta.

* Changed version number to 8.2.8.7
* Fixed system lockup problem when HBA is in MSI-X mode (CR 85802, 85441)
* Fixed slow vport deletes
* Fixed locking issue when lpfc_ioctl_send_mgmt_cmd fails to allocate buffer
* Changed mdelay to msleep in the ioctl path (CR 85606)
* Fixed a discovery issue (CR 85714)
* Extended Error Handling (EEH) support on IBM PowerPC P6 platform (CR 85671)
* Fix allocation of HBQs should not be done in interrupt context (CR 84717)
* Fixed loopback tests not working if auth enabled but auth service not
  available (CR 85334)
* Changed version number to 8.2.8.6
* Fix memory leaks in netlink send code
* Fixed fail-to-enable INTx when auth is enabled but auth service is not
  running (CR 85162)
* Fix build warning of uninitialized variable in lpfc_enable_intr
* Fix crash when running latency test (CR 85257)
* Fixed missing CNA attribute for sysfs (CR 85265)
* Fixed false overrun failure for menlo commands that are less than the command
  header size (CR 85168)
* Fixed mbuf leak when lpfc_pci_probe_one hit an error exit in SLI-2 mode
* Fix memory leak with dump mailbox completion
* Fix bpl size to reflect the correct buffer's size
* Fixed lpfc install problem for SLES 11 Beta2 (CR 84623)
* Fix driver online notification to come after port is added to auth list
* Added active interrupt test and automatic fallback for enabling
  MSI/MSI-X/INTx (CR 84266)
* Fixed NULL pointer dereference in lpfc_prep_els_iocb (CR 84470)
* Fixed time out handling in the worker thread (CR 84540)
* Changed version number to 8.2.8.5
* Small cleanup to match upstream 8.2.8 changes
* Fix bug with Interrupt Enable Block support (CR 84106)
* Applied pci_max_read fix from 8.2.0.x driver series (CR 84414)
* Added support for hps bit (CR 84425 84428)

Signed-off-by: Jamie Wellnitz <jamie.wellnitz@emulex.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 7508dea..7bb7971 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -73,6 +73,9 @@ struct lpfc_sli2_slim;
 /* Number of MSI-X vectors the driver uses */
 #define LPFC_MSIX_VECTORS	2
 
+/* Active interrupt test threshold */
+#define LPFC_INTR_THRESHOLD	1
+
 /* lpfc wait event data ready flag */
 #define LPFC_DATA_READY		(1<<0)
 
@@ -629,6 +632,7 @@ struct lpfc_hba {
 	uint32_t cfg_hba_queue_depth;
 	uint32_t cfg_enable_hba_reset;
 	uint32_t cfg_enable_hba_heartbeat;
+	uint32_t cfg_pci_max_read;
 
 	lpfc_vpd_t vpd;		/* vital product data */
 
@@ -718,6 +722,8 @@ struct lpfc_hba {
 
 	struct fc_host_statistics link_stats;
 	enum intr_type_t intr_type;
+	uint32_t intr_mode;
+#define LPFC_INTR_ERROR	0xFFFFFFFF
 	struct msix_entry msix_entries[LPFC_MSIX_VECTORS];
 	struct lpfcdfc_host *dfc_host;
 
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 1069491..2140408 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -42,6 +42,7 @@
 #include "lpfc_crtn.h"
 #include "lpfc_vport.h"
 #include "lpfc_auth_access.h"
+#include "lpfc_security.h"
 
 #define LPFC_DEF_DEVLOSS_TMO 30
 #define LPFC_MIN_DEVLOSS_TMO 1
@@ -3100,6 +3101,27 @@ LPFC_ATTR_R(enable_hba_heartbeat, 1, 0, 1, "Enable HBA Heartbeat.");
  */
 LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT,
 	    LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count");
+/*
+ * lpfc_pci_max_read:  Maximum DMA read byte count. This parameter can have
+ * values 512, 1024, 2048, 4096. Default value is 2048.
+ */
+static int lpfc_pci_max_read = 2048;
+module_param(lpfc_pci_max_read, int, 0);
+MODULE_PARM_DESC(lpfc_pci_max_read,
+	"Maximum DMA read byte count. Allowed values:"
+	" 512,1024,2048,4096.");
+static int
+lpfc_pci_max_read_init(struct lpfc_hba *phba, int val)
+{
+	phba->cfg_pci_max_read = 2048;
+	if ((val == 512) || (val == 1024) || (val == 2048) || (val == 4096))
+		phba->cfg_pci_max_read = val;
+	return 0;
+}
+
+lpfc_param_show(pci_max_read)
+static DEVICE_ATTR(lpfc_pci_max_read, S_IRUGO,
+			lpfc_pci_max_read_show, NULL);
 
 struct device_attribute *lpfc_hba_attrs[] = {
 	&dev_attr_info,
@@ -3136,6 +3158,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
 	&dev_attr_lpfc_fdmi_on,
 	&dev_attr_lpfc_max_luns,
 	&dev_attr_lpfc_enable_npiv,
+	&dev_attr_lpfc_pci_max_read,
 	&dev_attr_nport_evt_cnt,
 	&dev_attr_board_mode,
 	&dev_attr_max_vpi,
@@ -4176,12 +4199,22 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
 	if (error)
 		goto out_remove_ctlreg_attr;
 
+	 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
+					&sysfs_menlo_attr);
+	if (error)
+		goto out_remove_menlo_attr;
+
+
 	return 0;
 out_remove_ctlreg_attr:
 	sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
 out_remove_stat_attr:
 	sysfs_remove_bin_file(&shost->shost_dev.kobj,
 			&sysfs_drvr_stat_data_attr);
+out_remove_menlo_attr:
+	sysfs_remove_bin_file(&shost->shost_dev.kobj,
+			&sysfs_menlo_attr);
+
 out:
 	return error;
 }
@@ -4269,6 +4302,13 @@ lpfc_get_host_port_state(struct Scsi_Host *shost)
 	if (vport->fc_flag & FC_OFFLINE_MODE)
 		fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE;
 	else {
+		if ((vport->cfg_enable_auth) &&
+		    (lpfc_security_service_state == SECURITY_OFFLINE)) {
+			fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
+			spin_unlock_irq(shost->host_lock);
+			return;
+		}
+
 		switch (phba->link_state) {
 		case LPFC_LINK_UNKNOWN:
 		case LPFC_LINK_DOWN:
@@ -4837,6 +4877,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
 	lpfc_link_speed_init(phba, lpfc_link_speed);
 	lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
 	lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
+	lpfc_pci_max_read_init(phba, lpfc_pci_max_read);
 	lpfc_use_msi_init(phba, lpfc_use_msi);
 	lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
 	lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
diff --git a/drivers/scsi/lpfc/lpfc_auth_access.c b/drivers/scsi/lpfc/lpfc_auth_access.c
index 7481eb0..9f48c59 100644
--- a/drivers/scsi/lpfc/lpfc_auth_access.c
+++ b/drivers/scsi/lpfc/lpfc_auth_access.c
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2006-2007 Emulex.  All rights reserved.           *
+ * Copyright (C) 2006-2008 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  *                                                                 *
@@ -213,10 +213,11 @@ lpfc_fc_sc_request(struct lpfc_vport *vport,
 	fc_sc_req->tran_id = seq;
 
 	len = sizeof(struct fc_nl_sc_message) + auth_req_len;
-	fc_nl_sc_msg = kzalloc(sizeof(struct fc_nl_sc_message) + auth_req_len,
-			       GFP_KERNEL);
-	if (!fc_nl_sc_msg)
+	fc_nl_sc_msg = kzalloc(len, GFP_KERNEL);
+	if (!fc_nl_sc_msg) {
+		kfree(fc_sc_req);
 		return -ENOMEM;
+	}
 	fc_nl_sc_msg->msgtype = msg_type;
 	fc_nl_sc_msg->data_len = auth_req_len;
 	memcpy(fc_nl_sc_msg->data, auth_req, auth_req_len);
@@ -228,6 +229,7 @@ lpfc_fc_sc_request(struct lpfc_vport *vport,
 	scsi_nl_send_vendor_msg(fc_service_pid, shost->host_no,
 				(SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX),
 				(char *) fc_nl_sc_msg, len);
+	kfree(fc_nl_sc_msg);
 	lpfc_fc_sc_add_timer(fc_sc_req, FC_SC_REQ_TIMEOUT,
 			     lpfc_fc_sc_req_times_out);
 	return 0;
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index 380acef..cedbfea 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -43,6 +43,7 @@ void lpfc_read_config(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_read_lnk_stat(struct lpfc_hba *, LPFC_MBOXQ_t *);
 int lpfc_reg_login(struct lpfc_hba *, uint16_t, uint32_t, uint8_t *,
 		   LPFC_MBOXQ_t *, uint32_t);
+void lpfc_set_var(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t, uint32_t);
 void lpfc_unreg_login(struct lpfc_hba *, uint16_t, uint32_t, LPFC_MBOXQ_t *);
 void lpfc_unreg_did(struct lpfc_hba *, uint16_t, uint32_t, LPFC_MBOXQ_t *);
 void lpfc_reg_vpi(struct lpfc_hba *, uint16_t, uint32_t, LPFC_MBOXQ_t *);
@@ -166,6 +167,8 @@ void lpfc_offline(struct lpfc_hba *);
 
 int lpfc_sli_setup(struct lpfc_hba *);
 int lpfc_sli_queue_setup(struct lpfc_hba *);
+int  lpfc_sli_set_dma_length(struct lpfc_hba *, uint32_t);
+
 
 void lpfc_handle_eratt(struct lpfc_hba *);
 void lpfc_handle_latt(struct lpfc_hba *);
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 7fecdbb..896c7b0 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -560,18 +560,25 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		irsp->ulpStatus, irsp->un.ulpWord[4], vport->fc_ns_retry);
 
 	/* Don't bother processing response if vport is being torn down. */
-	if (vport->load_flag & FC_UNLOADING)
+	if (vport->load_flag & FC_UNLOADING) {
+		if (vport->fc_flag & FC_RSCN_MODE)
+			lpfc_els_flush_rscn(vport);
 		goto out;
+	}
 
 	if (lpfc_els_chk_latt(vport)) {
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
 				 "0216 Link event during NS query\n");
+		if (vport->fc_flag & FC_RSCN_MODE)
+			lpfc_els_flush_rscn(vport);
 		lpfc_vport_set_state(vport, FC_VPORT_FAILED);
 		goto out;
 	}
 	if (lpfc_error_lost_link(irsp)) {
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
 				 "0226 NS query failed due to link event\n");
+		if (vport->fc_flag & FC_RSCN_MODE)
+			lpfc_els_flush_rscn(vport);
 		goto out;
 	}
 	if (irsp->ulpStatus) {
@@ -587,6 +594,8 @@ lpfc_cmpl_ct_cmd_gid_ft(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			if (rc == 0)
 				goto out;
 		}
+		if (vport->fc_flag & FC_RSCN_MODE)
+			lpfc_els_flush_rscn(vport);
 		lpfc_vport_set_state(vport, FC_VPORT_FAILED);
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
 				 "0257 GID_FT Query error: 0x%x 0x%x\n",
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 3f58a4b..69f92e8 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -278,7 +278,8 @@ lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
 	return elsiocb;
 
 els_iocb_free_pbuf_exit:
-	lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
+	if (expectRsp)
+		lpfc_mbuf_free(phba, prsp->virt, prsp->phys);
 	kfree(pbuflist);
 
 els_iocb_free_prsp_exit:
@@ -943,6 +944,10 @@ lpfc_initial_flogi(struct lpfc_vport *vport)
 	struct lpfc_hba *phba = vport->phba;
 	struct lpfc_nodelist *ndlp;
 
+	if ((vport->cfg_enable_auth) &&
+	    (lpfc_security_service_state == SECURITY_OFFLINE))
+		return 1;
+
 	vport->port_state = LPFC_FLOGI;
 	lpfc_set_disctmo(vport);
 
@@ -4985,10 +4990,6 @@ lpfc_els_timeout_handler(struct lpfc_vport *vport)
 	uint32_t timeout;
 	uint32_t remote_ID = 0xffffffff;
 
-	/* If the timer is already canceled do nothing */
-	if ((vport->work_port_events & WORKER_ELS_TMO) == 0) {
-		return;
-	}
 	spin_lock_irq(&phba->hbalock);
 	timeout = (uint32_t)(phba->fc_ratov << 1);
 
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 358e9de..f02c2bb 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -39,6 +39,7 @@
 #include "lpfc_crtn.h"
 #include "lpfc_vport.h"
 #include "lpfc_debugfs.h"
+#include "lpfc_security.h"
 
 /* AlpaArray for assignment of scsid for scan-down and bind_method */
 static uint8_t lpfcAlpaArray[] = {
@@ -1008,9 +1009,12 @@ lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	/* Start discovery by sending a FLOGI. port_state is identically
 	 * LPFC_FLOGI while waiting for FLOGI cmpl
 	 */
-	if (vport->port_state != LPFC_FLOGI) {
+	if ((vport->cfg_enable_auth) &&
+	    (lpfc_security_service_state == SECURITY_OFFLINE))
+		lpfc_issue_clear_la(phba, vport);
+	else if (vport->port_state != LPFC_FLOGI)
 		lpfc_initial_flogi(vport);
-	}
+
 	return;
 
 out:
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index c77d49e..f9a42f6 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -2370,6 +2370,14 @@ typedef struct {
 	uint32_t rsvd1;
 } CLEAR_LA_VAR;
 
+/* Structure for MB Command SET_SLIM (33) */
+/* Values needed to set MAX_DMA_LENGTH parameter */
+#define SLIM_VAR_MAX_DMA_LENGTH 0x100506
+#define SLIM_VAL_MAX_DMA_512    0x0
+#define SLIM_VAL_MAX_DMA_1024   0x1
+#define SLIM_VAL_MAX_DMA_2048   0x2
+#define SLIM_VAL_MAX_DMA_4096   0x3
+
 /* Structure for MB Command DUMP */
 
 typedef struct {
@@ -2621,10 +2629,17 @@ typedef struct {
 
 	uint32_t pcbLow;       /* bit 31:0  of memory based port config block */
 	uint32_t pcbHigh;      /* bit 63:32 of memory based port config block */
-	uint32_t hbainit[6];
+	uint32_t hbainit[5];
+#ifdef __BIG_ENDIAN_BITFIELD
+	uint32_t hps	   :  1; /* bit 31 word9 Host Pointer in slim */
+	uint32_t rsvd	   : 31; /* least significant 31 bits of word 9 */
+#else   /*  __LITTLE_ENDIAN */
+	uint32_t rsvd      : 31; /* least significant 31 bits of word 9 */
+	uint32_t hps	   :  1; /* bit 31 word9 Host Pointer in slim */
+#endif
 
 #ifdef __BIG_ENDIAN_BITFIELD
-	uint32_t rsvd      : 24;  /* Reserved                             */
+	uint32_t rsvd1     : 24;  /* Reserved                             */
 	uint32_t cmv	   :  1;  /* Configure Max VPIs                   */
 	uint32_t ccrp      :  1;  /* Config Command Ring Polling          */
 	uint32_t csah      :  1;  /* Configure Synchronous Abort Handling */
@@ -2642,7 +2657,7 @@ typedef struct {
 	uint32_t csah      :  1;  /* Configure Synchronous Abort Handling */
 	uint32_t ccrp      :  1;  /* Config Command Ring Polling          */
 	uint32_t cmv	   :  1;  /* Configure Max VPIs                   */
-	uint32_t rsvd      : 24;  /* Reserved                             */
+	uint32_t rsvd1     : 24;  /* Reserved                             */
 #endif
 #ifdef __BIG_ENDIAN_BITFIELD
 	uint32_t rsvd2     : 24;  /* Reserved                             */
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index c151651..4032bda 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -290,8 +290,10 @@ lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 	/* character array used for decoding dist type. */
 	char dist_char[] = "nabx";
 
-	if (pmboxq->mb.mbxStatus != MBX_SUCCESS)
+	if (pmboxq->mb.mbxStatus != MBX_SUCCESS) {
+		mempool_free(pmboxq, phba->mbox_mem_pool);
 		return;
+	}
 
 	prg = (struct prog_id *) &prog_id_word;
 
@@ -309,6 +311,7 @@ lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 		sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 			prg->ver, prg->rev, prg->lev,
 			dist, prg->num);
+	mempool_free(pmboxq, phba->mbox_mem_pool);
 	return;
 }
 
@@ -521,22 +524,46 @@ lpfc_config_port_post(struct lpfc_hba *phba)
 	/* Set up error attention (ERATT) polling timer */
 	mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 
+	/* Use the existing MBOX buffer, it will be freed in mbox compl */
+	lpfc_config_async(phba, pmb, LPFC_ELS_RING);
+	pmb->mbox_cmpl = lpfc_config_async_cmpl;
+	pmb->vport = phba->pport;
+	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"0456 Adapter failed to issue "
+				"ASYNCEVT_ENABLE mbox status x%x \n.", rc);
+		mempool_free(pmb, phba->mbox_mem_pool);
+	}
+
+	/* Allocate new MBOX buffer, it will be freed in mbox compl */
+	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	lpfc_dump_wakeup_param(phba, pmb);
+	pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
+	pmb->vport = phba->pport;
+	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
+	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"0435 Adapter failed to get Option "
+				"ROM version status x%x\n.", rc);
+		mempool_free(pmb, phba->mbox_mem_pool);
+	}
+
 	if (vport->cfg_enable_auth) {
 		if (lpfc_security_service_state == SECURITY_OFFLINE) {
 			lpfc_printf_log(vport->phba, KERN_ERR, LOG_SECURITY,
 				"1000 Authentication is enabled but "
 				"authentication service is not running\n");
 			vport->auth.auth_mode = FC_AUTHMODE_UNKNOWN;
-			phba->link_state = LPFC_HBA_ERROR;
-			mempool_free(pmb, phba->mbox_mem_pool);
-			return 0;
 		}
 	}
 
+	/* Allocate new MBOX buffer, will be freed in mbox compl */
+	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
 	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
-	if (rc != MBX_SUCCESS) {
+	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0454 Adapter failed to init, mbxCmd x%x "
 				"INIT_LINK, mbxStatus x%x\n",
@@ -550,40 +577,9 @@ lpfc_config_port_post(struct lpfc_hba *phba)
 		readl(phba->HAregaddr); /* flush */
 
 		phba->link_state = LPFC_HBA_ERROR;
-		if (rc != MBX_BUSY)
-			mempool_free(pmb, phba->mbox_mem_pool);
-		return -EIO;
-	}
-	/* MBOX buffer will be freed in mbox compl */
-	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-	lpfc_config_async(phba, pmb, LPFC_ELS_RING);
-	pmb->mbox_cmpl = lpfc_config_async_cmpl;
-	pmb->vport = phba->pport;
-	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
-
-	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
-		lpfc_printf_log(phba,
-				KERN_ERR,
-				LOG_INIT,
-				"0456 Adapter failed to issue "
-				"ASYNCEVT_ENABLE mbox status x%x \n.",
-				rc);
-		mempool_free(pmb, phba->mbox_mem_pool);
-	}
-
-	/* Get Option rom version */
-	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-	lpfc_dump_wakeup_param(phba, pmb);
-	pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
-	pmb->vport = phba->pport;
-	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
-
-	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
-				"to get Option ROM version status x%x\n.", rc);
 		mempool_free(pmb, phba->mbox_mem_pool);
+		return -EIO;
 	}
-
 	return 0;
 }
 
@@ -788,11 +784,6 @@ lpfc_hb_timeout_handler(struct lpfc_hba *phba)
 		return;
 
 	spin_lock_irq(&phba->pport->work_port_lock);
-	/* If the timer is already canceled do nothing */
-	if (!(phba->pport->work_port_events & WORKER_HB_TMO)) {
-		spin_unlock_irq(&phba->pport->work_port_lock);
-		return;
-	}
 
 	if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
 		jiffies)) {
@@ -2307,6 +2298,51 @@ void lpfc_host_attrib_init(struct Scsi_Host *shost)
 }
 
 /**
+ * lpfc_setup_max_dma_length: Check the host's chipset and adjust HBA's
+ * max DMA length.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to test the machines chipsets. Some of Emulex's
+ * HBA models expose bugs in these chipsets. To work around these bugs we
+ * tell the HBA to use a smaller maxium DMA length.
+ * This routine is only called during module init. The DMA length is passed
+ * to the driver as a module parameter(lpfc_pci_max_read).
+ *
+ * return: NONE.
+ **/
+void
+lpfc_setup_max_dma_length(struct lpfc_hba *phba)
+{
+	struct pci_dev *pdev = phba->pcidev;
+	struct pci_bus *bus = pdev->bus;
+	uint8_t rev;
+
+	while (bus) {
+		/*
+		 * 0x7450 == PCI_DEVICE_ID_AMD_8131_BRIDGE for 2.6 kernels
+		 * 0x7450 == PCI_DEVICE_ID_AMD_8131_APIC   for 2.4 kernels
+		 */
+		if (bus->self &&
+			(bus->self->vendor == PCI_VENDOR_ID_AMD) &&
+			(bus->self->device == 0x7450)) {
+			pci_read_config_byte(bus->self, 0x08, &rev);
+			if (rev == 0x13) {
+				/*
+				 * If set a value in module paramter,
+				 * use that value.
+				 */
+				if (phba->cfg_pci_max_read == 2048)
+					phba->cfg_pci_max_read = 1024;
+				return;
+			}
+		}
+		bus = bus->parent;
+	}
+	return;
+}
+
+
+/**
  * lpfc_enable_msix: Enable MSI-X interrupt mode.
  * @phba: pointer to lpfc hba data structure.
  *
@@ -2340,8 +2376,7 @@ lpfc_enable_msix(struct lpfc_hba *phba)
 				ARRAY_SIZE(phba->msix_entries));
 	if (rc) {
 		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"0420 Enable MSI-X failed (%d), continuing "
-				"with MSI\n", rc);
+				"0420 PCI enable MSI-X failed (%d)\n", rc);
 		goto msi_fail_out;
 	} else
 		for (i = 0; i < LPFC_MSIX_VECTORS; i++)
@@ -2358,9 +2393,9 @@ lpfc_enable_msix(struct lpfc_hba *phba)
 	rc = request_irq(phba->msix_entries[0].vector, &lpfc_sp_intr_handler,
 			 IRQF_SHARED, LPFC_SP_DRIVER_HANDLER_NAME, phba);
 	if (rc) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 				"0421 MSI-X slow-path request_irq failed "
-				"(%d), continuing with MSI\n", rc);
+				"(%d)\n", rc);
 		goto msi_fail_out;
 	}
 
@@ -2369,9 +2404,9 @@ lpfc_enable_msix(struct lpfc_hba *phba)
 			 IRQF_SHARED, LPFC_FP_DRIVER_HANDLER_NAME, phba);
 
 	if (rc) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 				"0429 MSI-X fast-path request_irq failed "
-				"(%d), continuing with MSI\n", rc);
+				"(%d)\n", rc);
 		goto irq_fail_out;
 	}
 
@@ -2392,7 +2427,7 @@ lpfc_enable_msix(struct lpfc_hba *phba)
 		goto mbx_fail_out;
 	rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 	if (rc != MBX_SUCCESS) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
+		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
 				"0351 Config MSI mailbox command failed, "
 				"mbxCmd x%x, mbxStatus x%x\n",
 				pmb->mb.mbxCommand, pmb->mb.mbxStatus);
@@ -2441,6 +2476,111 @@ lpfc_disable_msix(struct lpfc_hba *phba)
 }
 
 /**
+ * lpfc_enable_msi: Enable MSI interrupt mode.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to enable the MSI interrupt mode. The kernel
+ * function pci_enable_msi() is called to enable the MSI vector. The
+ * device driver is responsible for calling the request_irq() to register
+ * MSI vector with a interrupt the handler, which is done in this function.
+ *
+ * Return codes
+ * 	0 - sucessful
+ * 	other values - error
+ */
+static int
+lpfc_enable_msi(struct lpfc_hba *phba)
+{
+	int rc;
+
+	rc = pci_enable_msi(phba->pcidev);
+	if (!rc)
+		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+				"0462 PCI enable MSI mode success.\n");
+	else {
+		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+				"0471 PCI enable MSI mode failed (%d)\n", rc);
+		return rc;
+	}
+
+	rc = request_irq(phba->pcidev->irq, lpfc_intr_handler,
+			 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
+	if (rc) {
+		pci_disable_msi(phba->pcidev);
+		lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+				"0478 MSI request_irq failed (%d)\n", rc);
+	}
+	return rc;
+}
+
+/**
+ * lpfc_disable_msi: Disable MSI interrupt mode.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is invoked to disable the MSI interrupt mode. The driver
+ * calls free_irq() on MSI vector it has done request_irq() on before
+ * calling pci_disable_msi(). Failure to do so results in a BUG_ON() and
+ * a device will be left with MSI enabled and leaks its vector.
+ */
+
+static void
+lpfc_disable_msi(struct lpfc_hba *phba)
+{
+	free_irq(phba->pcidev->irq, phba);
+	pci_disable_msi(phba->pcidev);
+	return;
+}
+
+/**
+ * lpfc_log_intr_mode: Log the active interrupt mode
+ * @phba: pointer to lpfc hba data structure.
+ * @intr_mode: active interrupt mode adopted.
+ *
+ * This routine it invoked to log the currently used active interrupt mode
+ * to the device.
+ */
+static void
+lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
+{
+	switch (intr_mode) {
+	case 0:
+		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+				"0470 Enable INTx interrupt mode.\n");
+		break;
+	case 1:
+		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+				"0481 Enabled MSI interrupt mode.\n");
+		break;
+	case 2:
+		lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+				"0480 Enabled MSI-X interrupt mode.\n");
+		break;
+	default:
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"0482 Illegal interrupt mode.\n");
+		break;
+	}
+	return;
+}
+
+static void
+lpfc_stop_port(struct lpfc_hba *phba)
+{
+	/* Clear all interrupt enable conditions */
+	writel(0, phba->HCregaddr);
+	readl(phba->HCregaddr); /* flush */
+	/* Clear all pending interrupts */
+	writel(0xffffffff, phba->HAregaddr);
+	readl(phba->HAregaddr); /* flush */
+
+	/* Reset some HBA SLI setup states */
+	lpfc_stop_phba_timers(phba);
+	phba->pport->work_port_events = 0;
+
+	return;
+}
+
+/**
  * lpfc_enable_intr: Enable device interrupt.
  * @phba: pointer to lpfc hba data structure.
  *
@@ -2454,60 +2594,47 @@ lpfc_disable_msix(struct lpfc_hba *phba)
  *   0 - sucessful
  *   other values - error
  **/
-static int
-lpfc_enable_intr(struct lpfc_hba *phba)
+static uint32_t
+lpfc_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
 {
-	int retval = 0;
-
-	/* Starting point of configuring interrupt method */
-	phba->intr_type = NONE;
+	uint32_t intr_mode = LPFC_INTR_ERROR;
+	int retval;
 
-	if (phba->cfg_use_msi == 2) {
+	if (cfg_mode == 2) {
 		/* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
 		retval = lpfc_sli_config_port(phba, 3);
-		if (retval)
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"0478 Firmware not capable of SLI 3 mode.\n");
-		else {
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"0479 Firmware capable of SLI 3 mode.\n");
+		if (!retval) {
 			/* Now, try to enable MSI-X interrupt mode */
 			retval = lpfc_enable_msix(phba);
 			if (!retval) {
+				/* Indicate initialization to MSI-X mode */
 				phba->intr_type = MSIX;
-				lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-						"0480 enable MSI-X mode.\n");
+				intr_mode = 2;
 			}
 		}
 	}
 
 	/* Fallback to MSI if MSI-X initialization failed */
-	if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
-		retval = pci_enable_msi(phba->pcidev);
+	if (cfg_mode >= 1 && phba->intr_type == NONE) {
+		retval = lpfc_enable_msi(phba);
 		if (!retval) {
+			/* Indicate initialization to MSI mode */
 			phba->intr_type = MSI;
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-					"0481 enable MSI mode.\n");
-		} else
-			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-					"0470 enable IRQ mode.\n");
+			intr_mode = 1;
+		}
 	}
 
-	/* MSI-X is the only case the doesn't need to call request_irq */
-	if (phba->intr_type != MSIX) {
+	/* Fallback to INTx if both MSI-X/MSI initalization failed */
+	if (phba->intr_type == NONE) {
 		retval = request_irq(phba->pcidev->irq, lpfc_intr_handler,
 				     IRQF_SHARED, LPFC_DRIVER_NAME, phba);
-		if (retval) {
-			if (phba->intr_type == MSI)
-				pci_disable_msi(phba->pcidev);
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"0471 Enable interrupt handler "
-					"failed\n");
-		} else if (phba->intr_type != MSI)
+		if (!retval) {
+			/* Indicate initialization to INTx mode */
 			phba->intr_type = INTx;
+			intr_mode = 0;
+		}
 	}
-
-	return retval;
+	return intr_mode;
 }
 
 /**
@@ -2522,13 +2649,18 @@ lpfc_enable_intr(struct lpfc_hba *phba)
 static void
 lpfc_disable_intr(struct lpfc_hba *phba)
 {
+	/* Disable the currently initialized interrupt mode */
 	if (phba->intr_type == MSIX)
 		lpfc_disable_msix(phba);
-	else {
+	else if (phba->intr_type == MSI)
+		lpfc_disable_msi(phba);
+	else if (phba->intr_type == INTx)
 		free_irq(phba->pcidev->irq, phba);
-		if (phba->intr_type == MSI)
-			pci_disable_msi(phba->pcidev);
-	}
+
+	/* Reset interrupt management states */
+	phba->intr_type = NONE;
+	phba->sli.slistat.sli_intr = 0;
+
 	return;
 }
 
@@ -2562,6 +2694,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	int error = -ENODEV, retval;
 	int  i, hbq_count;
 	uint16_t iotag;
+	uint32_t cfg_mode, intr_mode;
 	int bars = pci_select_bars(pdev, IORESOURCE_MEM);
 	struct lpfc_adapter_event_header adapter_event;
 
@@ -2593,6 +2726,9 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	 * establish the host.
 	 */
 	lpfc_get_cfgparam(phba);
+	/* Check if we need to change the DMA length */
+	lpfc_setup_max_dma_length(phba);
+
 	phba->max_vpi = lpfc_hba_max_vpi(phba->pcidev->device);
 
 	/* Initialize timers used by driver */
@@ -2615,6 +2751,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	phba->eratt_poll.data = (unsigned long) phba;
 
 	pci_set_master(pdev);
+	pci_save_state(pdev);
 	pci_try_set_mwi(pdev);
 
 	if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0)
@@ -2769,9 +2906,6 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 
 	if ((lpfc_get_security_enabled)(shost)) {
 		unsigned long flags;
-		/* Triggers fcauthd to register if it is running */
-		fc_host_post_event(shost, fc_get_event_number(),
-				   FCH_EVT_PORT_ONLINE, shost->host_no);
 		spin_lock_irqsave(&fc_security_user_lock, flags);
 		list_add_tail(&vport->sc_users, &fc_security_user_list);
 		spin_unlock_irqrestore(&fc_security_user_lock, flags);
@@ -2779,6 +2913,9 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 			lpfc_fc_queue_security_work(vport,
 				&vport->sc_online_work);
 		}
+		/* Triggers fcauthd to register if it is running */
+		fc_host_post_event(shost, fc_get_event_number(),
+				   FCH_EVT_PORT_ONLINE, shost->host_no);
 	}
 	phba->pport = vport;
 	lpfc_debugfs_initialize(vport);
@@ -2791,34 +2928,66 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
 	phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
 
-	/* Configure and enable interrupt */
-	error = lpfc_enable_intr(phba);
-	if (error) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-				"0426 Failed to enable interrupt.\n");
-		goto out_destroy_port;
-	}
-
+	/* Confiugre sysfs attributes */
 	phba->dfc_host = lpfcdfc_host_add(pdev, shost, phba);
 	if (!phba->dfc_host) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
 				"1201 Failed to allocate dfc_host \n");
 		error = -ENOMEM;
-		goto out_free_irq;
+		goto out_destroy_port;
 	}
 
 	if (lpfc_alloc_sysfs_attr(vport)) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"1476 Failed to allocate sysfs attr\n");
 		error = -ENOMEM;
-		goto out_free_irq;
+		goto out_del_dfc_host;
 	}
 
-	if (lpfc_sli_hba_setup(phba)) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-				"1477 Failed to set up hba\n");
-		error = -ENODEV;
-		goto out_remove_device;
+	cfg_mode = phba->cfg_use_msi;
+	while (true) {
+		/* Configure and enable interrupt */
+		intr_mode = lpfc_enable_intr(phba, cfg_mode);
+		if (intr_mode == LPFC_INTR_ERROR) {
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"0426 Failed to enable interrupt.\n");
+			goto out_free_sysfs_attr;
+		}
+		/* HBA SLI setup */
+		if (lpfc_sli_hba_setup(phba)) {
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"1477 Failed to set up hba\n");
+			error = -ENODEV;
+			goto out_remove_device;
+		}
+
+		/* Wait 50ms for the interrupts of previous mailbox commands */
+		msleep(50);
+		/* Check active interrupts received */
+		if (phba->sli.slistat.sli_intr > LPFC_INTR_THRESHOLD) {
+			/* Log the current active interrupt mode */
+			phba->intr_mode = intr_mode;
+			lpfc_log_intr_mode(phba, intr_mode);
+			break;
+		} else {
+			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+					"0451 Configure interrupt mode (%d) "
+					"failed active interrupt test.\n",
+					intr_mode);
+			if (intr_mode == 0) {
+				lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+						"0479 Failed to enable "
+						"interrupt.\n");
+				error = -ENODEV;
+				goto out_remove_device;
+			}
+			/* Stop HBA SLI setups */
+			lpfc_stop_port(phba);
+			/* Disable the current interrupt mode */
+			lpfc_disable_intr(phba);
+			/* Try next level of interrupt mode */
+			cfg_mode = --intr_mode;
+		}
 	}
 
 	/*
@@ -2850,16 +3019,19 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
 	return 0;
 
 out_remove_device:
-	lpfc_free_sysfs_attr(vport);
 	spin_lock_irq(shost->host_lock);
 	vport->load_flag |= FC_UNLOADING;
 	spin_unlock_irq(shost->host_lock);
-out_free_irq:
-	if (phba->dfc_host)
-		lpfcdfc_host_del(phba->dfc_host);
 	lpfc_stop_phba_timers(phba);
 	phba->pport->work_port_events = 0;
 	lpfc_disable_intr(phba);
+	lpfc_sli_hba_down(phba);
+	lpfc_sli_brdrestart(phba);
+out_free_sysfs_attr:
+	lpfc_free_sysfs_attr(vport);
+out_del_dfc_host:
+	if (phba->dfc_host)
+		lpfcdfc_host_del(phba->dfc_host);
 out_destroy_port:
 	destroy_port(vport);
 out_kthread_stop:
@@ -3051,6 +3223,7 @@ lpfc_pci_resume_one(struct pci_dev *pdev)
 {
 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
+	uint32_t intr_mode;
 	int error;
 
 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
@@ -3073,19 +3246,22 @@ lpfc_pci_resume_one(struct pci_dev *pdev)
 		return error;
 	}
 
-	/* Enable interrupt from device */
-	error = lpfc_enable_intr(phba);
-	if (error) {
+	/* Configure and enable interrupt */
+	intr_mode = lpfc_enable_intr(phba, phba->intr_mode);
+	if (intr_mode == LPFC_INTR_ERROR) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-				"0430 PM resume Failed to enable interrupt: "
-				"error=x%x.\n", error);
-		return error;
-	}
+				"0430 PM resume Failed to enable interrupt\n");
+		return -EIO;
+	} else
+		phba->intr_mode = intr_mode;
 
 	/* Restart HBA and bring it online */
 	lpfc_sli_brdrestart(phba);
 	lpfc_online(phba);
 
+	/* Log the current active interrupt mode */
+	lpfc_log_intr_mode(phba, phba->intr_mode);
+
 	return 0;
 }
 
@@ -3161,7 +3337,7 @@ static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
 	struct Scsi_Host *shost = pci_get_drvdata(pdev);
 	struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
 	struct lpfc_sli *psli = &phba->sli;
-	int error;
+	uint32_t intr_mode;
 
 	dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
 	if (pci_enable_device_mem(pdev)) {
@@ -3170,25 +3346,31 @@ static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
 		return PCI_ERS_RESULT_DISCONNECT;
 	}
 
-	pci_set_master(pdev);
+	pci_restore_state(pdev);
+	if (pdev->is_busmaster)
+		pci_set_master(pdev);
 
 	spin_lock_irq(&phba->hbalock);
 	psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
 	spin_unlock_irq(&phba->hbalock);
 
-	/* Enable configured interrupt method */
-	error = lpfc_enable_intr(phba);
-	if (error) {
+	/* Configure and enable interrupt */
+	intr_mode = lpfc_enable_intr(phba, phba->intr_mode);
+	if (intr_mode == LPFC_INTR_ERROR) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0427 Cannot re-enable interrupt after "
 				"slot reset.\n");
 		return PCI_ERS_RESULT_DISCONNECT;
-	}
+	} else
+		phba->intr_mode = intr_mode;
 
 	/* Take device offline; this will perform cleanup */
 	lpfc_offline(phba);
 	lpfc_sli_brdrestart(phba);
 
+	/* Log the current active interrupt mode */
+	lpfc_log_intr_mode(phba, phba->intr_mode);
+
 	return PCI_ERS_RESULT_RECOVERED;
 }
 
diff --git a/drivers/scsi/lpfc/lpfc_ioctl.c b/drivers/scsi/lpfc/lpfc_ioctl.c
index e80d157..127b47b 100644
--- a/drivers/scsi/lpfc/lpfc_ioctl.c
+++ b/drivers/scsi/lpfc/lpfc_ioctl.c
@@ -162,7 +162,7 @@ lpfc_ioctl_hba_rnid(struct lpfc_hba * phba,
 	for (i0 = 0;
 	     i0 < 10 && (pndl->nlp_flag & NLP_ELS_SND_MASK) == NLP_RNID_SND;
 	     i0++) {
-		mdelay(1000);
+		msleep(1000);
 	}
 
 	if (i0 == 10) {
@@ -731,7 +731,6 @@ lpfc_ioctl_send_mgmt_cmd(struct lpfc_hba * phba,
 	outdmp = dfc_cmd_data_alloc(phba, NULL, bpl, snsbfrcnt);
 	if (!outdmp) {
 		rc = ENOMEM;
-		spin_lock_irq(shost->host_lock);
 		goto send_mgmt_cmd_free_indmp;
 	}
 
@@ -1104,7 +1103,7 @@ lpfc_ioctl_loopback_mode(struct lpfc_hba *phba,
 		if (i++ > 500)	/* wait up to 5 seconds */
 			break;
 
-		mdelay(10);
+		msleep(10);
 	}
 
 	memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t));
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index f0ab456..84619ed 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -835,6 +835,40 @@ lpfc_config_pcb_setup(struct lpfc_hba * phba)
 }
 
 /**
+ * lpfc_set_var: Prepare a mailbox command to write slim.
+ * @phba: pointer to lpfc hba data structure.
+ * @pmb: pointer to the driver internal queue element for mailbox command.
+ * @addr: This the set variable number that identifies the variable.
+ * @value:The value that we are setting the parameter to.
+ *
+ * The routine just sets the addr and value in the set variable mailbox
+ * command structure.
+ * returns: NONE.
+ **/
+void
+lpfc_set_var(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, uint32_t addr,
+	      uint32_t value)
+{
+	MAILBOX_t *mb;
+
+	mb = &pmb->mb;
+	memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
+
+	/*
+	 * Always turn on DELAYED ABTS for ELS timeouts
+	 */
+	if ((addr == 0x052198) && (value == 0))
+		value = 1;
+
+	mb->un.varWords[0] = addr;
+	mb->un.varWords[1] = value;
+
+	mb->mbxCommand = MBX_SET_VARIABLE;
+	mb->mbxOwner = OWN_HOST;
+	return;
+}
+
+/**
  * lpfc_read_rev: Prepare a mailbox command for reading HBA revision.
  * @phba: pointer to lpfc hba data structure.
  * @pmb: pointer to the driver internal queue element for mailbox command.
@@ -1093,6 +1127,9 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
 	mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
 
+	/* Always Host Group Pointer is in SLIM */
+	mb->un.varCfgPort.hps = 1;
+
 	/* If HBA supports SLI=3 ask for it */
 
 	if (phba->sli_rev == 3 && phba->vpd.sli3Feat.cerbm) {
@@ -1195,16 +1232,11 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 				    sizeof(*phba->host_gp));
 	}
 
-	/* Setup Port Group ring pointer */
-	if (phba->sli3_options & LPFC_SLI3_INB_ENABLED) {
-		pgp_offset = offsetof(struct lpfc_sli2_slim,
-				      mbx.us.s3_inb_pgp.port);
-		phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get;
-	} else if (phba->sli_rev == 3) {
+	/* Setup Port Group offset */
+	if (phba->sli_rev == 3)
 		pgp_offset = offsetof(struct lpfc_sli2_slim,
 				      mbx.us.s3_pgp.port);
-		phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
-	} else
+	else
 		pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s2.port);
 	pdma_addr = phba->slim2p.phys + pgp_offset;
 	phba->pcb->pgpAddrHigh = putPaddrHigh(pdma_addr);
diff --git a/drivers/scsi/lpfc/lpfc_menlo.c b/drivers/scsi/lpfc/lpfc_menlo.c
index aa36c16..4f3b332 100644
--- a/drivers/scsi/lpfc/lpfc_menlo.c
+++ b/drivers/scsi/lpfc/lpfc_menlo.c
@@ -289,19 +289,16 @@ static void
 sysfs_menlo_idle(struct lpfc_hba *phba,
 		struct lpfc_sysfs_menlo *sysfs_menlo)
 {
-	struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
 
 	spin_lock_irq(&phba->hbalock);
 	list_del_init(&sysfs_menlo->list);
 	spin_unlock_irq(&phba->hbalock);
-	spin_lock_irq(shost->host_lock);
 
 	if (sysfs_menlo->cr.cmdiocbq)
 		sysfs_menlo_genreq_free(phba, &sysfs_menlo->cr);
 	if (sysfs_menlo->cx.cmdiocbq)
 		sysfs_menlo_genreq_free(phba, &sysfs_menlo->cx);
 
-	spin_unlock_irq(shost->host_lock);
 	kfree(sysfs_menlo);
 }
 
@@ -543,14 +540,15 @@ lpfc_menlo_write(struct lpfc_hba *phba,
 	}
 
 	if ((count + sysfs_menlo->cr.offset) > sysfs_menlo->cmdhdr.cmdsize) {
-		if ( sysfs_menlo->cmdhdr.cmdsize != 4) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
+		if (sysfs_menlo->cmdhdr.cmdsize >=
+			sizeof(struct lpfc_sysfs_menlo_hdr)) {
+			lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
 			"1213 FCoE cmd overflow: off %d + cnt %d > cmdsz %d\n",
-			(int)sysfs_menlo->cr.offset,
-			(int)count,
-			(int)sysfs_menlo->cmdhdr.cmdsize);
-		sysfs_menlo_idle(phba, sysfs_menlo);
-		return -ERANGE;
+				(int)sysfs_menlo->cr.offset,
+				(int)count,
+				(int)sysfs_menlo->cmdhdr.cmdsize);
+			sysfs_menlo_idle(phba, sysfs_menlo);
+			return -ERANGE;
 		}
 	}
 
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 0c25d97..8f548ad 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -1929,10 +1929,10 @@ lpfc_device_recov_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	if (vport->fc_flag & FC_RSCN_DEFERRED)
 		return ndlp->nlp_state;
 
+	lpfc_cancel_retry_delay_tmo(vport, ndlp);
 	spin_lock_irq(shost->host_lock);
 	ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
 	spin_unlock_irq(shost->host_lock);
-	lpfc_cancel_retry_delay_tmo(vport, ndlp);
 	return ndlp->nlp_state;
 }
 
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index daf400e..38a7faf 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -65,6 +65,8 @@ lpfc_update_stats(struct lpfc_hba *phba, struct  lpfc_scsi_buf *lpfc_cmd)
 	if (cmd->result)
 		return;
 
+	latency = jiffies_to_msecs((long)jiffies - (long)lpfc_cmd->start_time);
+
 	spin_lock_irqsave(shost->host_lock, flags);
 	if (!vport->stat_data_enabled ||
 		vport->stat_data_blocked ||
@@ -73,13 +75,15 @@ lpfc_update_stats(struct lpfc_hba *phba, struct  lpfc_scsi_buf *lpfc_cmd)
 		spin_unlock_irqrestore(shost->host_lock, flags);
 		return;
 	}
-	latency = jiffies_to_msecs(jiffies - lpfc_cmd->start_time);
 
 	if (phba->bucket_type == LPFC_LINEAR_BUCKET) {
 		i = (latency + phba->bucket_step - 1 - phba->bucket_base)/
 			phba->bucket_step;
-		if (i >= LPFC_MAX_BUCKET_COUNT)
-			i = LPFC_MAX_BUCKET_COUNT;
+		/* check array subscript bounds */
+		if (i < 0)
+			i = 0;
+		else if (i >= LPFC_MAX_BUCKET_COUNT)
+			i = LPFC_MAX_BUCKET_COUNT - 1;
 	} else {
 		for (i = 0; i < LPFC_MAX_BUCKET_COUNT-1; i++)
 			if (latency <= (phba->bucket_base +
@@ -413,14 +417,14 @@ lpfc_new_scsi_buf(struct lpfc_vport *vport)
 	bpl[0].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_cmd));
 	bpl[0].tus.f.bdeSize = sizeof(struct fcp_cmnd);
 	bpl[0].tus.f.bdeFlags = BUFF_TYPE_BDE_64;
-	bpl[0].tus.w = le32_to_cpu(bpl->tus.w);
+	bpl[0].tus.w = le32_to_cpu(bpl[0].tus.w);
 
 	/* Setup the physical region for the FCP RSP */
 	bpl[1].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_rsp));
 	bpl[1].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_rsp));
 	bpl[1].tus.f.bdeSize = sizeof(struct fcp_rsp);
 	bpl[1].tus.f.bdeFlags = BUFF_TYPE_BDE_64;
-	bpl[1].tus.w = le32_to_cpu(bpl->tus.w);
+	bpl[1].tus.w = le32_to_cpu(bpl[1].tus.w);
 
 	/*
 	 * Since the IOCB for the FCP I/O is built into this lpfc_scsi_buf,
@@ -920,7 +924,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
 		if (!pnode || !NLP_CHK_NODE_ACT(pnode)
 		    || (pnode->nlp_state != NLP_STE_MAPPED_NODE))
 			cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED,
-			SAM_STAT_BUSY);
+						 SAM_STAT_BUSY);
 	} else {
 		cmd->result = ScsiResult(DID_OK, 0);
 	}
diff --git a/drivers/scsi/lpfc/lpfc_security.c b/drivers/scsi/lpfc/lpfc_security.c
index c0fbe56..3d2a8c8 100644
--- a/drivers/scsi/lpfc/lpfc_security.c
+++ b/drivers/scsi/lpfc/lpfc_security.c
@@ -45,8 +45,7 @@ lpfc_security_service_online(struct Scsi_Host *shost)
 
 	lpfc_security_service_state = SECURITY_ONLINE;
 	if (vport->cfg_enable_auth &&
-	    vport->auth.auth_mode == FC_AUTHMODE_UNKNOWN &&
-	    vport->phba->link_state == LPFC_HBA_ERROR)
+	    vport->auth.auth_mode == FC_AUTHMODE_UNKNOWN)
 		lpfc_selective_reset(vport->phba);
 }
 
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index ac78493..5838e41 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -1262,68 +1262,6 @@ lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
 }
 
 /**
- * lpfc_sli_replace_hbqbuff: Replace the HBQ buffer with a new buffer.
- * @phba: Pointer to HBA context object.
- * @tag: Tag for the HBQ buffer.
- *
- * This function is called from unsolicited event handler code path to get the
- * HBQ buffer associated with an unsolicited iocb. This function is called with
- * no lock held. It returns the buffer associated with the given tag and posts
- * another buffer to the firmware. Note that the new buffer must be allocated
- * before taking the hbalock and that the hba lock must be held until it is
- * finished with the hbq entry swap.
- **/
-static struct lpfc_dmabuf *
-lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag)
-{
-	struct hbq_dmabuf *hbq_entry, *new_hbq_entry;
-	uint32_t hbqno;
-	void *virt;		/* virtual address ptr */
-	dma_addr_t phys;	/* mapped address */
-	unsigned long flags;
-
-	hbqno = tag >> 16;
-	new_hbq_entry = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
-	/* Check whether HBQ is still in use */
-	spin_lock_irqsave(&phba->hbalock, flags);
-	if (!phba->hbq_in_use) {
-		if (new_hbq_entry)
-			(phba->hbqs[hbqno].hbq_free_buffer)(phba,
-							    new_hbq_entry);
-		spin_unlock_irqrestore(&phba->hbalock, flags);
-		return NULL;
-	}
-
-	hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
-	if (hbq_entry == NULL) {
-		if (new_hbq_entry)
-			(phba->hbqs[hbqno].hbq_free_buffer)(phba,
-							    new_hbq_entry);
-		spin_unlock_irqrestore(&phba->hbalock, flags);
-		return NULL;
-	}
-	list_del(&hbq_entry->dbuf.list);
-
-	if (new_hbq_entry == NULL) {
-		list_add_tail(&hbq_entry->dbuf.list, &phba->hbqbuf_in_list);
-		spin_unlock_irqrestore(&phba->hbalock, flags);
-		return &hbq_entry->dbuf;
-	}
-	new_hbq_entry->tag = -1;
-	phys = new_hbq_entry->dbuf.phys;
-	virt = new_hbq_entry->dbuf.virt;
-	new_hbq_entry->dbuf.phys = hbq_entry->dbuf.phys;
-	new_hbq_entry->dbuf.virt = hbq_entry->dbuf.virt;
-	hbq_entry->dbuf.phys = phys;
-	hbq_entry->dbuf.virt = virt;
-	lpfc_sli_free_hbq(phba, hbq_entry);
-	list_add_tail(&new_hbq_entry->dbuf.list, &phba->hbqbuf_in_list);
-	spin_unlock_irqrestore(&phba->hbalock, flags);
-
-	return &new_hbq_entry->dbuf;
-}
-
-/**
  * lpfc_sli_get_buff: Get the buffer associated with the buffer tag.
  * @phba: Pointer to HBA context object.
  * @pring: Pointer to driver SLI ring object.
@@ -1337,13 +1275,17 @@ lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag)
  **/
 static struct lpfc_dmabuf *
 lpfc_sli_get_buff(struct lpfc_hba *phba,
-			struct lpfc_sli_ring *pring,
-			uint32_t tag)
+		  struct lpfc_sli_ring *pring,
+		  uint32_t tag)
 {
+	struct hbq_dmabuf *hbq_entry;
+
 	if (tag & QUE_BUFTAG_BIT)
 		return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
-	else
-		return lpfc_sli_replace_hbqbuff(phba, tag);
+	hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
+	if (!hbq_entry)
+		return NULL;
+	return &hbq_entry->dbuf;
 }
 
 
@@ -1375,8 +1317,6 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 	match = 0;
 	irsp = &(saveq->iocb);
 
-	if (irsp->ulpStatus == IOSTAT_NEED_BUFFER)
-		return 1;
 	if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
 		if (pring->lpfc_sli_rcv_async_status)
 			pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
@@ -2776,6 +2716,86 @@ lpfc_sli_brdreset(struct lpfc_hba *phba)
 }
 
 /**
+ * lpfc_sli_set_dma_length: Set the HBA's max DMA length.
+ * @phba: Pointer to HBA context object.
+ * @polling: flag that indicates if interrupts are enabled.
+ *
+ * This function sets the HBA's max dma length by issuing a set variable
+ * mailbox command. The dma length is taking from the cfg_pci_max_read
+ * configuration parameter. This parameter is passed as a module parameter
+ * during the driver load. If the HBA does not support this set variable
+ * mbox command the failure status will reset the cfg_pci_max_read to the
+ * default(2048).
+ * If interrupts are not enabled yet then the polling flag = 1  should be
+ * be used so that the right mailbox routine is called.
+ * This function returns 0 for success, non 0 returned for failure.
+ **/
+int
+lpfc_sli_set_dma_length(struct lpfc_hba *phba, uint32_t polling)
+{
+	uint32_t dma_length;
+	LPFC_MBOXQ_t *mbox;
+	int ret = 0;
+
+	switch (phba->cfg_pci_max_read) {
+	case 512:
+		dma_length = SLIM_VAL_MAX_DMA_512;
+		break;
+	case 1024:
+		dma_length = SLIM_VAL_MAX_DMA_1024;
+		break;
+	case 2048:
+		dma_length = SLIM_VAL_MAX_DMA_2048;
+		break;
+	case 4096:
+		dma_length = SLIM_VAL_MAX_DMA_4096;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (!mbox)
+		goto failed;
+
+	lpfc_set_var(phba, mbox, SLIM_VAR_MAX_DMA_LENGTH, dma_length);
+
+	if (polling)
+		ret = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
+	else
+		ret = lpfc_sli_issue_mbox_wait(phba, mbox,
+			LPFC_MBOX_TMO * 2);
+
+	if (ret != MBX_SUCCESS) {
+		if (mbox->mb.mbxStatus != MBXERR_UNKNOWN_CMD)
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"%d:0443 Adapter failed to set maximum"
+				" DMA length mbxStatus x%x \n",
+				phba->brd_no, mbox->mb.mbxStatus);
+		else
+			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
+				"%d:0447 Adapter failed to set maximum"
+				" DMA length mbxStatus x%x \n",
+				phba->brd_no, mbox->mb.mbxStatus);
+		goto failed;
+	}
+
+	mempool_free(mbox, phba->mbox_mem_pool);
+	return 0;
+
+failed:
+	/* If mailbox command failed, reset the value to default value */
+	phba->cfg_pci_max_read = 2048;
+	if (ret == MBX_TIMEOUT) {
+		mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+		return -EPERM;
+	} else if (mbox) {
+		mempool_free(mbox, phba->mbox_mem_pool);
+		return -EPERM;
+	} else
+		return -ENOMEM;
+}
+/**
  * lpfc_sli_brdrestart: Restart the HBA.
  * @phba: Pointer to HBA context object.
  *
@@ -3140,17 +3160,20 @@ lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
 			phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
 		if (pmb->mb.un.varCfgPort.ginb) {
 			phba->sli3_options |= LPFC_SLI3_INB_ENABLED;
+			phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get;
 			phba->port_gp = phba->mbox->us.s3_inb_pgp.port;
 			phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy;
 			phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter;
 			phba->inb_last_counter =
 					phba->mbox->us.s3_inb_pgp.counter;
 		} else {
+			phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
 			phba->port_gp = phba->mbox->us.s3_pgp.port;
 			phba->inb_ha_copy = NULL;
 			phba->inb_counter = NULL;
 		}
 	} else {
+		phba->hbq_get = NULL;
 		phba->port_gp = phba->mbox->us.s2.port;
 		phba->inb_ha_copy = NULL;
 		phba->inb_counter = NULL;
@@ -3226,6 +3249,9 @@ lpfc_sli_hba_setup(struct lpfc_hba *phba)
 	lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 			"0444 Firmware in SLI %x mode. Max_vpi %d\n",
 			phba->sli_rev, phba->max_vpi);
+
+	lpfc_sli_set_dma_length(phba, 1);
+
 	rc = lpfc_sli_ring_map(phba);
 
 	if (rc)
@@ -3301,10 +3327,6 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
 	struct lpfc_sli *psli = &phba->sli;
 	struct lpfc_sli_ring *pring;
 
-	if (!(phba->pport->work_port_events & WORKER_MBOX_TMO)) {
-		return;
-	}
-
 	/* Mbox cmd <mbxCommand> timeout */
 	lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
 			"0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
@@ -5275,6 +5297,7 @@ lpfc_sp_intr_handler(int irq, void *dev_id)
 	uint32_t ha_copy;
 	uint32_t work_ha_copy;
 	unsigned long status;
+	unsigned long iflag;
 	uint32_t control;
 
 	MAILBOX_t *mbox, *pmbox;
@@ -5307,7 +5330,7 @@ lpfc_sp_intr_handler(int irq, void *dev_id)
 		if (unlikely(phba->link_state < LPFC_LINK_DOWN))
 			return IRQ_NONE;
 		/* Need to read HA REG for slow-path events */
-		spin_lock(&phba->hbalock);
+		spin_lock_irqsave(&phba->hbalock, iflag);
 		ha_copy = readl(phba->HAregaddr);
 		/* If somebody is waiting to handle an eratt don't process it
 		 * here. The brdkill function will do this.
@@ -5327,7 +5350,7 @@ lpfc_sp_intr_handler(int irq, void *dev_id)
 		writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
 			phba->HAregaddr);
 		readl(phba->HAregaddr); /* flush */
-		spin_unlock(&phba->hbalock);
+		spin_unlock_irqrestore(&phba->hbalock, iflag);
 	} else
 		ha_copy = phba->ha_copy;
 
@@ -5340,13 +5363,13 @@ lpfc_sp_intr_handler(int irq, void *dev_id)
 				 * Turn off Link Attention interrupts
 				 * until CLEAR_LA done
 				 */
-				spin_lock(&phba->hbalock);
+				spin_lock_irqsave(&phba->hbalock, iflag);
 				phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
 				control = readl(phba->HCregaddr);
 				control &= ~HC_LAINT_ENA;
 				writel(control, phba->HCregaddr);
 				readl(phba->HCregaddr); /* flush */
-				spin_unlock(&phba->hbalock);
+				spin_unlock_irqrestore(&phba->hbalock, iflag);
 			}
 			else
 				work_ha_copy &= ~HA_LATT;
@@ -5361,7 +5384,7 @@ lpfc_sp_intr_handler(int irq, void *dev_id)
 				(HA_RXMASK  << (4*LPFC_ELS_RING)));
 			status >>= (4*LPFC_ELS_RING);
 			if (status & HA_RXMASK) {
-				spin_lock(&phba->hbalock);
+				spin_lock_irqsave(&phba->hbalock, iflag);
 				control = readl(phba->HCregaddr);
 
 				lpfc_debugfs_slow_ring_trc(phba,
@@ -5390,10 +5413,10 @@ lpfc_sp_intr_handler(int irq, void *dev_id)
 						(uint32_t)((unsigned long)
 						&phba->work_waitq));
 				}
-				spin_unlock(&phba->hbalock);
+				spin_unlock_irqrestore(&phba->hbalock, iflag);
 			}
 		}
-		spin_lock(&phba->hbalock);
+		spin_lock_irqsave(&phba->hbalock, iflag);
 		if (work_ha_copy & HA_ERATT)
 			lpfc_sli_read_hs(phba);
 		if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
@@ -5405,7 +5428,7 @@ lpfc_sp_intr_handler(int irq, void *dev_id)
 			/* First check out the status word */
 			lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
 			if (pmbox->mbxOwner != OWN_HOST) {
-				spin_unlock(&phba->hbalock);
+				spin_unlock_irqrestore(&phba->hbalock, iflag);
 				/*
 				 * Stray Mailbox Interrupt, mbxCommand <cmd>
 				 * mbxStatus <status>
@@ -5422,7 +5445,7 @@ lpfc_sp_intr_handler(int irq, void *dev_id)
 				work_ha_copy &= ~HA_MBATT;
 			} else {
 				phba->sli.mbox_active = NULL;
-				spin_unlock(&phba->hbalock);
+				spin_unlock_irqrestore(&phba->hbalock, iflag);
 				phba->last_completion_time = jiffies;
 				del_timer(&phba->sli.mbox_tmo);
 				if (pmb->mbox_cmpl) {
@@ -5480,14 +5503,18 @@ lpfc_sp_intr_handler(int irq, void *dev_id)
 						goto send_current_mbox;
 					}
 				}
-				spin_lock(&phba->pport->work_port_lock);
+				spin_lock_irqsave(
+						&phba->pport->work_port_lock,
+						iflag);
 				phba->pport->work_port_events &=
 					~WORKER_MBOX_TMO;
-				spin_unlock(&phba->pport->work_port_lock);
+				spin_unlock_irqrestore(
+						&phba->pport->work_port_lock,
+						iflag);
 				lpfc_mbox_cmpl_put(phba, pmb);
 			}
 		} else
-			spin_unlock(&phba->hbalock);
+			spin_unlock_irqrestore(&phba->hbalock, iflag);
 
 		if ((work_ha_copy & HA_MBATT) &&
 		    (phba->sli.mbox_active == NULL)) {
@@ -5503,9 +5530,9 @@ send_current_mbox:
 						"MBX_SUCCESS");
 		}
 
-		spin_lock(&phba->hbalock);
+		spin_lock_irqsave(&phba->hbalock, iflag);
 		phba->work_ha |= work_ha_copy;
-		spin_unlock(&phba->hbalock);
+		spin_unlock_irqrestore(&phba->hbalock, iflag);
 		lpfc_worker_wake_up(phba);
 	}
 	return IRQ_HANDLED;
@@ -5537,6 +5564,7 @@ lpfc_fp_intr_handler(int irq, void *dev_id)
 	struct lpfc_hba  *phba;
 	uint32_t ha_copy;
 	unsigned long status;
+	unsigned long iflag;
 
 	/* Get the driver's phba structure from the dev_id and
 	 * assume the HBA is not interrupting.
@@ -5562,11 +5590,11 @@ lpfc_fp_intr_handler(int irq, void *dev_id)
 		/* Need to read HA REG for FCP ring and other ring events */
 		ha_copy = readl(phba->HAregaddr);
 		/* Clear up only attention source related to fast-path */
-		spin_lock(&phba->hbalock);
+		spin_lock_irqsave(&phba->hbalock, iflag);
 		writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
 			phba->HAregaddr);
 		readl(phba->HAregaddr); /* flush */
-		spin_unlock(&phba->hbalock);
+		spin_unlock_irqrestore(&phba->hbalock, iflag);
 	} else
 		ha_copy = phba->ha_copy;
 
diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index 57b559a..16626a5 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -18,7 +18,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "8.2.8.4"
+#define LPFC_DRIVER_VERSION "8.2.8.7"
 
 #define LPFC_DRIVER_NAME		"lpfc"
 #define LPFC_SP_DRIVER_HANDLER_NAME	"lpfc:sp"