Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (38 commits)
fusion: mptsas, fix lock imbalance
[SCSI] scsi_transport_fc: replace BUS_ID_SIZE by fixed count
sd, sr: fix Driver 'sd' needs updating message
scsi_transport_iscsi: return -EOVERFLOW for Too many iscsi targets
fc_transport: Selective return value from BSG timeout function
fc_transport: The softirq_done function registration for BSG request
sym53c8xx: ratelimit parity errors
explain the hidden scsi_wait_scan Kconfig variable
ibmvfc: Fix endless PRLI loop in discovery
ibmvfc: Process async events before command responses
libfc: Add runtime debugging with debug_logging module parameter
libfcoe: Add runtime debugging with module param debug_logging
fcoe: Add runtime debug logging with module parameter debug_logging
scsi_debug: Add support for physical block exponent and alignment
cnic: add NETDEV_1000 and NETDEVICES to Kconfig select
cnic: Fix __symbol_get() build error.
Revert "[SCSI] cnic: fix error: implicit declaration of function ‘__symbol_get’"
ipr: differentiate pci-x and pci-e based adapters
ipr: add test for MSI interrupt support
scsi_transport_spi: Blacklist Ultrium-3 tape for IU transfers
...

block/bsg.c

···
 	blk_put_request(rq);
 	if (next_rq) {
 		blk_rq_unmap_user(next_rq->bio);
-		next_rq->bio = NULL;
 		blk_put_request(next_rq);
 	}
 	return ERR_PTR(ret);
···
 		hdr->dout_resid = rq->resid_len;
 		hdr->din_resid = rq->next_rq->resid_len;
 		blk_rq_unmap_user(bidi_bio);
-		rq->next_rq->bio = NULL;
 		blk_put_request(rq->next_rq);
 	} else if (rq_data_dir(rq) == READ)
 		hdr->din_resid = rq->resid_len;
···
 	blk_rq_unmap_user(bio);
 	if (rq->cmd != rq->__cmd)
 		kfree(rq->cmd);
-	rq->bio = NULL;
 	blk_put_request(rq);
 
 	return ret;

drivers/message/fusion/mptsas.c

···
 		} else
 			mptsas_volume_delete(ioc, sas_info->fw.id);
 	}
-	mutex_lock(&ioc->sas_device_info_mutex);
+	mutex_unlock(&ioc->sas_device_info_mutex);
 
 	/* expanders */
 	mutex_lock(&ioc->sas_topology_mutex);
···
 			goto redo_expander_scan;
 		}
 	}
-	mutex_lock(&ioc->sas_topology_mutex);
+	mutex_unlock(&ioc->sas_topology_mutex);
 }
 
 /**

drivers/net/cnic.c

···
 #include <linux/delay.h>
 #include <linux/ethtool.h>
 #include <linux/if_vlan.h>
-#include <linux/module.h>
-
 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
 #define BCM_VLAN 1
 #endif
···
 	struct cnic_dev *cdev;
 	struct cnic_local *cp;
 	struct cnic_eth_dev *ethdev = NULL;
-	struct cnic_eth_dev *(*probe)(void *) = NULL;
+	struct cnic_eth_dev *(*probe)(struct net_device *) = NULL;
 
-	probe = __symbol_get("bnx2_cnic_probe");
+	probe = symbol_get(bnx2_cnic_probe);
 	if (probe) {
 		ethdev = (*probe)(dev);
 		symbol_put_addr(probe);

drivers/net/cnic_if.h

···
 
 extern int cnic_unregister_driver(int ulp_type);
 
+extern struct cnic_eth_dev *bnx2_cnic_probe(struct net_device *dev);
+
 #endif

drivers/scsi/Kconfig

···
 	  or async on the kernel's command line.
 
 config SCSI_WAIT_SCAN
-	tristate
+	tristate  # No prompt here, this is an invisible symbol.
 	default m
 	depends on SCSI
 	depends on MODULES
+# scsi_wait_scan is a loadable module which waits until all the async scans are
+# complete.  The idea is to use it in initrd/ initramfs scripts.  You modprobe
+# it after all the modprobes of the root SCSI drivers and it will wait until
+# they have all finished scanning their buses before allowing the boot to
+# proceed.  (This method is not applicable if targets boot independently in
+# parallel with the initiator, or with transports with non-deterministic target
+# discovery schemes, or if a transport driver does not support scsi_wait_scan.)
+#
+# This symbol is not exposed as a prompt because little is to be gained by
+# disabling it, whereas people who accidentally switch it off may wonder why
+# their mkinitrd gets into trouble.
 
 menu "SCSI Transports"
 	depends on SCSI

drivers/scsi/bnx2i/Kconfig

···
 config SCSI_BNX2_ISCSI
 	tristate "Broadcom NetXtreme II iSCSI support"
 	select SCSI_ISCSI_ATTRS
+	select NETDEVICES
+	select NETDEV_1000
 	select CNIC
 	depends on PCI
 	---help---

drivers/scsi/cxgb3i/cxgb3i_ddp.c

···
 	return DDP_PGIDX_MAX;
 }
 
+/**
+ * cxgb3i_ddp_adjust_page_table - adjust page table with PAGE_SIZE
+ * return the ddp page index, if no match is found return DDP_PGIDX_MAX.
+ */
+int cxgb3i_ddp_adjust_page_table(void)
+{
+	int i;
+	unsigned int base_order, order;
+
+	if (PAGE_SIZE < (1UL << ddp_page_shift[0])) {
+		ddp_log_info("PAGE_SIZE 0x%lx too small, min. 0x%lx.\n",
+				PAGE_SIZE, 1UL << ddp_page_shift[0]);
+		return -EINVAL;
+	}
+
+	base_order = get_order(1UL << ddp_page_shift[0]);
+	order = get_order(1 << PAGE_SHIFT);
+	for (i = 0; i < DDP_PGIDX_MAX; i++) {
+		/* first is the kernel page size, then just doubling the size */
+		ddp_page_order[i] = order - base_order + i;
+		ddp_page_shift[i] = PAGE_SHIFT + i;
+	}
+	return 0;
+}
+
 static inline void ddp_gl_unmap(struct pci_dev *pdev,
 				struct cxgb3i_gather_list *gl)
 {
···
  * release all the resource held by the ddp pagepod manager for a given
  * adapter if needed
  */
+
+static void ddp_cleanup(struct kref *kref)
+{
+	struct cxgb3i_ddp_info *ddp = container_of(kref,
+						struct cxgb3i_ddp_info,
+						refcnt);
+	int i = 0;
+
+	ddp_log_info("kref release ddp 0x%p, t3dev 0x%p.\n", ddp, ddp->tdev);
+
+	ddp->tdev->ulp_iscsi = NULL;
+	while (i < ddp->nppods) {
+		struct cxgb3i_gather_list *gl = ddp->gl_map[i];
+		if (gl) {
+			int npods = (gl->nelem + PPOD_PAGES_MAX - 1)
+					>> PPOD_PAGES_SHIFT;
+			ddp_log_info("t3dev 0x%p, ddp %d + %d.\n",
+					ddp->tdev, i, npods);
+			kfree(gl);
+			ddp_free_gl_skb(ddp, i, npods);
+			i += npods;
+		} else
+			i++;
+	}
+	cxgb3i_free_big_mem(ddp);
+}
+
 void cxgb3i_ddp_cleanup(struct t3cdev *tdev)
 {
-	int i = 0;
 	struct cxgb3i_ddp_info *ddp = (struct cxgb3i_ddp_info *)tdev->ulp_iscsi;
 
 	ddp_log_info("t3dev 0x%p, release ddp 0x%p.\n", tdev, ddp);
-
-	if (ddp) {
-		tdev->ulp_iscsi = NULL;
-		while (i < ddp->nppods) {
-			struct cxgb3i_gather_list *gl = ddp->gl_map[i];
-			if (gl) {
-				int npods = (gl->nelem + PPOD_PAGES_MAX - 1)
-						>> PPOD_PAGES_SHIFT;
-				ddp_log_info("t3dev 0x%p, ddp %d + %d.\n",
-						tdev, i, npods);
-				kfree(gl);
-				ddp_free_gl_skb(ddp, i, npods);
-				i += npods;
-			} else
-				i++;
-		}
-		cxgb3i_free_big_mem(ddp);
-	}
+	if (ddp)
+		kref_put(&ddp->refcnt, ddp_cleanup);
 }
 
 /**
···
  */
 static void ddp_init(struct t3cdev *tdev)
 {
-	struct cxgb3i_ddp_info *ddp;
+	struct cxgb3i_ddp_info *ddp = tdev->ulp_iscsi;
 	struct ulp_iscsi_info uinfo;
 	unsigned int ppmax, bits;
 	int i, err;
 
-	if (tdev->ulp_iscsi) {
+	if (ddp) {
+		kref_get(&ddp->refcnt);
 		ddp_log_warn("t3dev 0x%p, ddp 0x%p already set up.\n",
 				tdev, tdev->ulp_iscsi);
 		return;
···
 					  ppmax *
 					  sizeof(struct cxgb3i_gather_list *));
 	spin_lock_init(&ddp->map_lock);
+	kref_init(&ddp->refcnt);
 
 	ddp->tdev = tdev;
 	ddp->pdev = uinfo.pdev;
···
 {
 	if (page_idx == DDP_PGIDX_MAX) {
 		page_idx = cxgb3i_ddp_find_page_index(PAGE_SIZE);
+
+		if (page_idx == DDP_PGIDX_MAX) {
+			ddp_log_info("system PAGE_SIZE %lu, update hw.\n",
+					PAGE_SIZE);
+			if (cxgb3i_ddp_adjust_page_table() < 0) {
+				ddp_log_info("PAGE_SIZE %lu, ddp disabled.\n",
+						PAGE_SIZE);
+				return;
+			}
+			page_idx = cxgb3i_ddp_find_page_index(PAGE_SIZE);
+		}
 		ddp_log_info("system PAGE_SIZE %lu, ddp idx %u.\n",
 				PAGE_SIZE, page_idx);
 	}

drivers/scsi/cxgb3i/cxgb3i_ddp.h

···
  * struct cxgb3i_ddp_info - cxgb3i direct data placement for pdu payload
  *
  * @list:	list head to link elements
+ * @refcnt:	ref. count
  * @tdev:	pointer to t3cdev used by cxgb3 driver
  * @max_txsz:	max tx packet size for ddp
  * @max_rxsz:	max rx packet size for ddp
···
  */
 struct cxgb3i_ddp_info {
 	struct list_head list;
+	struct kref refcnt;
 	struct t3cdev *tdev;
 	struct pci_dev *pdev;
 	unsigned int max_txsz;

drivers/scsi/fcoe/fcoe.c

···
 
 #include "fcoe.h"
 
-static int debug_fcoe;
-
 MODULE_AUTHOR("Open-FCoE.org");
 MODULE_DESCRIPTION("FCoE");
 MODULE_LICENSE("GPL v2");
···
 #ifdef NETIF_F_FCOE_CRC
 	if (netdev->features & NETIF_F_FCOE_CRC) {
 		lp->crc_offload = 1;
-		printk(KERN_DEBUG "fcoe:%s supports FCCRC offload\n",
-		       netdev->name);
+		FCOE_NETDEV_DBG(netdev, "Supports FCCRC offload\n");
 	}
 #endif
 #ifdef NETIF_F_FSO
 	if (netdev->features & NETIF_F_FSO) {
 		lp->seq_offload = 1;
 		lp->lso_max = netdev->gso_max_size;
-		printk(KERN_DEBUG "fcoe:%s supports LSO for max len 0x%x\n",
-		       netdev->name, lp->lso_max);
+		FCOE_NETDEV_DBG(netdev, "Supports LSO for max len 0x%x\n",
+				lp->lso_max);
 	}
 #endif
 	if (netdev->fcoe_ddp_xid) {
 		lp->lro_enabled = 1;
 		lp->lro_xid = netdev->fcoe_ddp_xid;
-		printk(KERN_DEBUG "fcoe:%s supports LRO for max xid 0x%x\n",
-		       netdev->name, lp->lro_xid);
+		FCOE_NETDEV_DBG(netdev, "Supports LRO for max xid 0x%x\n",
+				lp->lro_xid);
 	}
 	skb_queue_head_init(&fc->fcoe_pending_queue);
 	fc->fcoe_pending_queue_active = 0;
···
 	/* add the new host to the SCSI-ml */
 	rc = scsi_add_host(lp->host, dev);
 	if (rc) {
-		FC_DBG("fcoe_shost_config:error on scsi_add_host\n");
+		FCOE_NETDEV_DBG(fcoe_netdev(lp), "fcoe_shost_config: "
+				"error on scsi_add_host\n");
 		return rc;
 	}
 	sprintf(fc_host_symbolic_name(lp->host), "%s v%s over %s",
···
 
 	BUG_ON(!netdev);
 
-	printk(KERN_DEBUG "fcoe_if_destroy:interface on %s\n",
-	       netdev->name);
+	FCOE_NETDEV_DBG(netdev, "Destroying interface\n");
 
 	lp = fcoe_hostlist_lookup(netdev);
 	if (!lp)
···
 
 	BUG_ON(!netdev);
 
-	printk(KERN_DEBUG "fcoe_if_create:interface on %s\n",
-	       netdev->name);
+	FCOE_NETDEV_DBG(netdev, "Create Interface\n");
 
 	lp = fcoe_hostlist_lookup(netdev);
 	if (lp)
···
 	shost = libfc_host_alloc(&fcoe_shost_template,
 				 sizeof(struct fcoe_softc));
 	if (!shost) {
-		FC_DBG("Could not allocate host structure\n");
+		FCOE_NETDEV_DBG(netdev, "Could not allocate host structure\n");
 		return -ENOMEM;
 	}
 	lp = shost_priv(shost);
···
 	/* configure fc_lport, e.g., em */
 	rc = fcoe_lport_config(lp);
 	if (rc) {
-		FC_DBG("Could not configure lport\n");
+		FCOE_NETDEV_DBG(netdev, "Could not configure lport for the "
+				"interface\n");
 		goto out_host_put;
 	}
 
···
 	/* configure lport network properties */
 	rc = fcoe_netdev_config(lp, netdev);
 	if (rc) {
-		FC_DBG("Could not configure netdev for the interface\n");
+		FCOE_NETDEV_DBG(netdev, "Could not configure netdev for the "
+				"interface\n");
 		goto out_netdev_cleanup;
 	}
 
 	/* configure lport scsi host properties */
 	rc = fcoe_shost_config(lp, shost, &netdev->dev);
 	if (rc) {
-		FC_DBG("Could not configure shost for lport\n");
+		FCOE_NETDEV_DBG(netdev, "Could not configure shost for the "
+				"interface\n");
 		goto out_netdev_cleanup;
 	}
 
 	/* lport exch manager allocation */
 	rc = fcoe_em_config(lp);
 	if (rc) {
-		FC_DBG("Could not configure em for lport\n");
+		FCOE_NETDEV_DBG(netdev, "Could not configure the EM for the "
+				"interface\n");
 		goto out_netdev_cleanup;
 	}
 
 	/* Initialize the library */
 	rc = fcoe_libfc_config(lp, &fcoe_libfc_fcn_templ);
 	if (rc) {
-		FC_DBG("Could not configure libfc for lport!\n");
+		FCOE_NETDEV_DBG(netdev, "Could not configure libfc for the "
+				"interface\n");
 		goto out_lp_destroy;
 	}
 
···
 		fc_attach_transport(&fcoe_transport_function);
 
 	if (!scsi_transport_fcoe_sw) {
-		printk(KERN_ERR "fcoe_init:fc_attach_transport() failed\n");
+		printk(KERN_ERR "fcoe: Failed to attach to the FC transport\n");
 		return -ENODEV;
 	}
 
···
 	unsigned targ_cpu = smp_processor_id();
 #endif /* CONFIG_SMP */
 
-	printk(KERN_DEBUG "fcoe: Destroying receive thread for CPU %d\n", cpu);
+	FCOE_DBG("Destroying receive thread for CPU %d\n", cpu);
 
 	/* Prevent any new skbs from being queued for this CPU. */
 	p = &per_cpu(fcoe_percpu, cpu);
···
 		p0 = &per_cpu(fcoe_percpu, targ_cpu);
 		spin_lock_bh(&p0->fcoe_rx_list.lock);
 		if (p0->thread) {
-			FC_DBG("Moving frames from CPU %d to CPU %d\n",
-			       cpu, targ_cpu);
+			FCOE_DBG("Moving frames from CPU %d to CPU %d\n",
+				 cpu, targ_cpu);
 
 			while ((skb = __skb_dequeue(&p->fcoe_rx_list)) != NULL)
 				__skb_queue_tail(&p0->fcoe_rx_list, skb);
···
 	switch (action) {
 	case CPU_ONLINE:
 	case CPU_ONLINE_FROZEN:
-		FC_DBG("CPU %x online: Create Rx thread\n", cpu);
+		FCOE_DBG("CPU %x online: Create Rx thread\n", cpu);
 		fcoe_percpu_thread_create(cpu);
 		break;
 	case CPU_DEAD:
 	case CPU_DEAD_FROZEN:
-		FC_DBG("CPU %x offline: Remove Rx thread\n", cpu);
+		FCOE_DBG("CPU %x offline: Remove Rx thread\n", cpu);
 		fcoe_percpu_thread_destroy(cpu);
 		break;
 	default:
···
 	fc = container_of(ptype, struct fcoe_softc, fcoe_packet_type);
 	lp = fc->ctlr.lp;
 	if (unlikely(lp == NULL)) {
-		FC_DBG("cannot find hba structure");
+		FCOE_NETDEV_DBG(dev, "Cannot find hba structure");
 		goto err2;
 	}
 	if (!lp->link_up)
 		goto err2;
 
-	if (unlikely(debug_fcoe)) {
-		FC_DBG("skb_info: len:%d data_len:%d head:%p data:%p tail:%p "
-		       "end:%p sum:%d dev:%s", skb->len, skb->data_len,
-		       skb->head, skb->data, skb_tail_pointer(skb),
-		       skb_end_pointer(skb), skb->csum,
-		       skb->dev ? skb->dev->name : "<NULL>");
-
-	}
+	FCOE_NETDEV_DBG(dev, "skb_info: len:%d data_len:%d head:%p "
+			"data:%p tail:%p end:%p sum:%d dev:%s",
+			skb->len, skb->data_len, skb->head, skb->data,
+			skb_tail_pointer(skb), skb_end_pointer(skb),
+			skb->csum, skb->dev ? skb->dev->name : "<NULL>");
 
 	/* check for FCOE packet type */
 	if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
-		FC_DBG("wrong FC type frame");
+		FCOE_NETDEV_DBG(dev, "Wrong FC type frame");
 		goto err;
 	}
 
···
 		 * the first CPU now. For non-SMP systems this
 		 * will check the same CPU twice.
 		 */
-		FC_DBG("CPU is online, but no receive thread ready "
-		       "for incoming skb- using first online CPU.\n");
+		FCOE_NETDEV_DBG(dev, "CPU is online, but no receive thread "
+				"ready for incoming skb- using first online "
+				"CPU.\n");
 
 		spin_unlock_bh(&fps->fcoe_rx_list.lock);
 		cpu = first_cpu(cpu_online_map);
···
 		fr = fcoe_dev_from_skb(skb);
 		lp = fr->fr_dev;
 		if (unlikely(lp == NULL)) {
-			FC_DBG("invalid HBA Structure");
+			FCOE_NETDEV_DBG(skb->dev, "Invalid HBA Structure");
 			kfree_skb(skb);
 			continue;
 		}
 
-		if (unlikely(debug_fcoe)) {
-			FC_DBG("skb_info: len:%d data_len:%d head:%p data:%p "
-			       "tail:%p end:%p sum:%d dev:%s",
-			       skb->len, skb->data_len,
-			       skb->head, skb->data, skb_tail_pointer(skb),
-			       skb_end_pointer(skb), skb->csum,
-			       skb->dev ? skb->dev->name : "<NULL>");
-		}
+		FCOE_NETDEV_DBG(skb->dev, "skb_info: len:%d data_len:%d "
+				"head:%p data:%p tail:%p end:%p sum:%d dev:%s",
+				skb->len, skb->data_len,
+				skb->head, skb->data, skb_tail_pointer(skb),
+				skb_end_pointer(skb), skb->csum,
+				skb->dev ? skb->dev->name : "<NULL>");
 
 		/*
 		 * Save source MAC address before discarding header.
···
 		stats = fc_lport_get_stats(lp);
 		if (unlikely(FC_FCOE_DECAPS_VER(hp) != FC_FCOE_VER)) {
 			if (stats->ErrorFrames < 5)
-				printk(KERN_WARNING "FCoE version "
+				printk(KERN_WARNING "fcoe: FCoE version "
 				       "mismatch: The frame has "
 				       "version %x, but the "
 				       "initiator supports version "
···
 		if (fr_flags(fp) & FCPHF_CRC_UNCHECKED) {
 			if (le32_to_cpu(fr_crc(fp)) !=
 			    ~crc32(~0, skb->data, fr_len)) {
-				if (debug_fcoe || stats->InvalidCRCCount < 5)
+				if (stats->InvalidCRCCount < 5)
 					printk(KERN_WARNING "fcoe: dropping "
 					       "frame with CRC error\n");
 				stats->InvalidCRCCount++;
···
 	case NETDEV_REGISTER:
 		break;
 	default:
-		FC_DBG("Unknown event %ld from netdev netlink\n", event);
+		FCOE_NETDEV_DBG(real_dev, "Unknown event %ld "
+				"from netdev netlink\n", event);
 	}
 	if (link_possible && !fcoe_link_ok(lp))
 		fcoe_ctlr_link_up(&fc->ctlr);
···
 
 	owner = fcoe_netdev_to_module_owner(netdev);
 	if (owner) {
-		printk(KERN_DEBUG "fcoe:hold driver module %s for %s\n",
-		       module_name(owner), netdev->name);
+		FCOE_NETDEV_DBG(netdev, "Hold driver module %s\n",
+				module_name(owner));
 		return  try_module_get(owner);
 	}
 	return -ENODEV;
···
 
 	owner = fcoe_netdev_to_module_owner(netdev);
 	if (owner) {
-		printk(KERN_DEBUG "fcoe:release driver module %s for %s\n",
-		       module_name(owner), netdev->name);
+		FCOE_NETDEV_DBG(netdev, "Release driver module %s\n",
+				module_name(owner));
 		module_put(owner);
 		return 0;
 	}
···
 	}
 	rc = fcoe_if_destroy(netdev);
 	if (rc) {
-		printk(KERN_ERR "fcoe: fcoe_if_destroy(%s) failed\n",
+		printk(KERN_ERR "fcoe: Failed to destroy interface (%s)\n",
 		       netdev->name);
 		rc = -EIO;
 		goto out_putdev;
···
 
 	rc = fcoe_if_create(netdev);
 	if (rc) {
-		printk(KERN_ERR "fcoe: fcoe_if_create(%s) failed\n",
+		printk(KERN_ERR "fcoe: Failed to create interface (%s)\n",
 		       netdev->name);
 		fcoe_ethdrv_put(netdev);
 		rc = -EIO;

drivers/scsi/fcoe/fcoe.h

···
 #define FCOE_MIN_XID		0x0001	/* the min xid supported by fcoe_sw */
 #define FCOE_MAX_XID		0x07ef	/* the max xid supported by fcoe_sw */
 
+unsigned int fcoe_debug_logging;
+module_param_named(debug_logging, fcoe_debug_logging, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
+
+#define FCOE_LOGGING        0x01 /* General logging, not categorized */
+#define FCOE_NETDEV_LOGGING 0x02 /* Netdevice logging */
+
+#define FCOE_CHECK_LOGGING(LEVEL, CMD)					\
+do {                                                            	\
+	if (unlikely(fcoe_debug_logging & LEVEL))			\
+		do {							\
+			CMD;						\
+		} while (0);						\
+} while (0);
+
+#define FCOE_DBG(fmt, args...)						\
+	FCOE_CHECK_LOGGING(FCOE_LOGGING,				\
+			   printk(KERN_INFO "fcoe: " fmt, ##args);)
+
+#define FCOE_NETDEV_DBG(netdev, fmt, args...)			\
+	FCOE_CHECK_LOGGING(FCOE_NETDEV_LOGGING,			\
+			   printk(KERN_INFO "fcoe: %s" fmt,	\
+				  netdev->name, ##args);)
+
 /*
  * this percpu struct for fcoe
  */

drivers/scsi/fcoe/libfcoe.c

···
 
 static u8 fcoe_all_fcfs[ETH_ALEN] = FIP_ALL_FCF_MACS;
 
-static u32 fcoe_ctlr_debug;	/* 1 for basic, 2 for noisy debug */
+unsigned int libfcoe_debug_logging;
+module_param_named(debug_logging, libfcoe_debug_logging, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
 
-#define FIP_DBG_LVL(level, fmt, args...) 				\
+#define LIBFCOE_LOGGING     0x01 /* General logging, not categorized */
+#define LIBFCOE_FIP_LOGGING 0x02 /* FIP logging */
+
+#define LIBFCOE_CHECK_LOGGING(LEVEL, CMD)				\
+do {                                                            	\
+	if (unlikely(libfcoe_debug_logging & LEVEL))			\
 		do {							\
-			if (fcoe_ctlr_debug >= (level))			\
-				FC_DBG(fmt, ##args);			\
-		} while (0)
+			CMD;						\
+		} while (0);						\
+} while (0);
 
-#define FIP_DBG(fmt, args...)	FIP_DBG_LVL(1, fmt, ##args)
+#define LIBFCOE_DBG(fmt, args...)					\
+	LIBFCOE_CHECK_LOGGING(LIBFCOE_LOGGING,				\
+			      printk(KERN_INFO "libfcoe: " fmt, ##args);)
+
+#define LIBFCOE_FIP_DBG(fmt, args...)					\
+	LIBFCOE_CHECK_LOGGING(LIBFCOE_FIP_LOGGING,			\
+			      printk(KERN_INFO "fip: " fmt, ##args);)
 
 /*
  * Return non-zero if FCF fcoe_size has been validated.
···
 		fip->last_link = 1;
 		fip->link = 1;
 		spin_unlock_bh(&fip->lock);
-		FIP_DBG("%s", "setting AUTO mode.\n");
+		LIBFCOE_FIP_DBG("%s", "setting AUTO mode.\n");
 		fc_linkup(fip->lp);
 		fcoe_ctlr_solicit(fip, NULL);
 	} else
···
 			       ((struct fip_mac_desc *)desc)->fd_mac,
 			       ETH_ALEN);
 			if (!is_valid_ether_addr(fcf->fcf_mac)) {
-				FIP_DBG("invalid MAC addr in FIP adv\n");
+				LIBFCOE_FIP_DBG("Invalid MAC address "
+						"in FIP adv\n");
 				return -EINVAL;
 			}
 			break;
···
 		case FIP_DT_LOGO:
 		case FIP_DT_ELP:
 		default:
-			FIP_DBG("unexpected descriptor type %x in FIP adv\n",
-				desc->fip_dtype);
+			LIBFCOE_FIP_DBG("unexpected descriptor type %x "
+					"in FIP adv\n", desc->fip_dtype);
 			/* standard says ignore unknown descriptors >= 128 */
 			if (desc->fip_dtype < FIP_DT_VENDOR_BASE)
 				return -EINVAL;
···
 	return 0;
 
 len_err:
-	FIP_DBG("FIP length error in descriptor type %x len %zu\n",
-		desc->fip_dtype, dlen);
+	LIBFCOE_FIP_DBG("FIP length error in descriptor type %x len %zu\n",
+			desc->fip_dtype, dlen);
 	return -EINVAL;
 }
 
···
 	}
 	mtu_valid = fcoe_ctlr_mtu_valid(fcf);
 	fcf->time = jiffies;
-	FIP_DBG_LVL(found ? 2 : 1, "%s FCF for fab %llx map %x val %d\n",
-		    found ? "old" : "new",
-		    fcf->fabric_name, fcf->fc_map, mtu_valid);
+	if (!found) {
+		LIBFCOE_FIP_DBG("New FCF for fab %llx map %x val %d\n",
+				fcf->fabric_name, fcf->fc_map, mtu_valid);
+	}
 
 	/*
 	 * If this advertisement is not solicited and our max receive size
···
 			       ((struct fip_mac_desc *)desc)->fd_mac,
 			       ETH_ALEN);
 			if (!is_valid_ether_addr(granted_mac)) {
-				FIP_DBG("invalid MAC addrs in FIP ELS\n");
+				LIBFCOE_FIP_DBG("Invalid MAC address "
+						"in FIP ELS\n");
 				goto drop;
 			}
 			break;
···
 			els_dtype = desc->fip_dtype;
 			break;
 		default:
-			FIP_DBG("unexpected descriptor type %x "
-				"in FIP adv\n", desc->fip_dtype);
+			LIBFCOE_FIP_DBG("unexpected descriptor type %x "
+					"in FIP adv\n", desc->fip_dtype);
 			/* standard says ignore unknown descriptors >= 128 */
 			if (desc->fip_dtype < FIP_DT_VENDOR_BASE)
 				goto drop;
···
 	return;
 
 len_err:
-	FIP_DBG("FIP length error in descriptor type %x len %zu\n",
-		desc->fip_dtype, dlen);
+	LIBFCOE_FIP_DBG("FIP length error in descriptor type %x len %zu\n",
+			desc->fip_dtype, dlen);
 drop:
 	kfree_skb(skb);
 }
···
 	struct fc_lport *lp = fip->lp;
 	u32	desc_mask;
 
-	FIP_DBG("Clear Virtual Link received\n");
+	LIBFCOE_FIP_DBG("Clear Virtual Link received\n");
 	if (!fcf)
 		return;
 	if (!fcf || !fc_host_port_id(lp->host))
···
 	 * reset only if all required descriptors were present and valid.
 	 */
 	if (desc_mask) {
-		FIP_DBG("missing descriptors mask %x\n", desc_mask);
+		LIBFCOE_FIP_DBG("missing descriptors mask %x\n", desc_mask);
 	} else {
-		FIP_DBG("performing Clear Virtual Link\n");
+		LIBFCOE_FIP_DBG("performing Clear Virtual Link\n");
 		fcoe_ctlr_reset(fip, FIP_ST_ENABLED);
 	}
 }
···
 	op = ntohs(fiph->fip_op);
 	sub = fiph->fip_subcode;
 
-	FIP_DBG_LVL(2, "ver %x op %x/%x dl %x fl %x\n",
-		    FIP_VER_DECAPS(fiph->fip_ver), op, sub,
-		    ntohs(fiph->fip_dl_len), ntohs(fiph->fip_flags));
-
 	if (FIP_VER_DECAPS(fiph->fip_ver) != FIP_VER)
 		goto drop;
 	if (ntohs(fiph->fip_dl_len) * FIP_BPW + sizeof(*fiph) > skb->len)
···
 		fip->map_dest = 0;
 		fip->state = FIP_ST_ENABLED;
 		state = FIP_ST_ENABLED;
-		FIP_DBG("using FIP mode\n");
+		LIBFCOE_FIP_DBG("Using FIP mode\n");
 	}
 	spin_unlock_bh(&fip->lock);
 	if (state != FIP_ST_ENABLED)
···
 	struct fcoe_fcf *best = NULL;
 
 	list_for_each_entry(fcf, &fip->fcfs, list) {
-		FIP_DBG("consider FCF for fab %llx VFID %d map %x val %d\n",
-			fcf->fabric_name, fcf->vfid,
-			fcf->fc_map, fcoe_ctlr_mtu_valid(fcf));
+		LIBFCOE_FIP_DBG("consider FCF for fab %llx VFID %d map %x "
+				"val %d\n", fcf->fabric_name, fcf->vfid,
+				fcf->fc_map, fcoe_ctlr_mtu_valid(fcf));
 		if (!fcoe_ctlr_fcf_usable(fcf)) {
-			FIP_DBG("FCF for fab %llx map %x %svalid %savailable\n",
-				fcf->fabric_name, fcf->fc_map,
-				(fcf->flags & FIP_FL_SOL) ? "" : "in",
-				(fcf->flags & FIP_FL_AVAIL) ? "" : "un");
+			LIBFCOE_FIP_DBG("FCF for fab %llx map %x %svalid "
+					"%savailable\n", fcf->fabric_name,
+					fcf->fc_map, (fcf->flags & FIP_FL_SOL)
+					? "" : "in", (fcf->flags & FIP_FL_AVAIL)
+					? "" : "un");
 			continue;
 		}
 		if (!best) {
···
 		if (fcf->fabric_name != best->fabric_name ||
 		    fcf->vfid != best->vfid ||
 		    fcf->fc_map != best->fc_map) {
-			FIP_DBG("conflicting fabric, VFID, or FC-MAP\n");
+			LIBFCOE_FIP_DBG("Conflicting fabric, VFID, "
+					"or FC-MAP\n");
 			return;
 		}
 		if (fcf->pri < best->pri)
···
 	if (sel != fcf) {
 		fcf = sel;		/* the old FCF may have been freed */
 		if (sel) {
-			printk(KERN_INFO "host%d: FIP selected "
+			printk(KERN_INFO "libfcoe: host%d: FIP selected "
 			       "Fibre-Channel Forwarder MAC %s\n",
 			       fip->lp->host->host_no,
 			       print_mac(buf, sel->fcf_mac));
···
 			fip->ctlr_ka_time = jiffies + sel->fka_period;
 			fip->link = 1;
 		} else {
-			printk(KERN_NOTICE "host%d: "
+			printk(KERN_NOTICE "libfcoe: host%d: "
 			       "FIP Fibre-Channel Forwarder timed out.  "
 			       "Starting FCF discovery.\n",
 			       fip->lp->host->host_no);
···
 			return -EINVAL;
 		}
 		fip->state = FIP_ST_NON_FIP;
-		FIP_DBG("received FLOGI LS_ACC using non-FIP mode\n");
+		LIBFCOE_FIP_DBG("received FLOGI LS_ACC using non-FIP mode\n");
 
 		/*
 		 * FLOGI accepted.
···
 			memcpy(fip->dest_addr, sa, ETH_ALEN);
 			fip->map_dest = 0;
 			if (fip->state == FIP_ST_NON_FIP)
-				FIP_DBG("received FLOGI REQ, "
+				LIBFCOE_FIP_DBG("received FLOGI REQ, "
 						"using non-FIP mode\n");
 			fip->state = FIP_ST_NON_FIP;
 		}

drivers/scsi/hosts.c

···
 #include "scsi_logging.h"
 
 
-static int scsi_host_next_hn;		/* host_no for next new host */
+static atomic_t scsi_host_next_hn;	/* host_no for next new host */
 
 
 static void scsi_host_cls_release(struct device *dev)
···
 
 	mutex_init(&shost->scan_mutex);
 
-	shost->host_no = scsi_host_next_hn++; /* XXX(hch): still racy */
+	/*
+	 * subtract one because we increment first then return, but we need to
+	 * know what the next host number was before increment
+	 */
+	shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1;
 	shost->dma_channel = 0xff;
 
 	/* These three are default values which can be overridden */

drivers/scsi/ibmvscsi/ibmvfc.c

···
 				continue;
 			if (crq->node_name && tgt->ids.node_name != crq->node_name)
 				continue;
-			ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
+			if (tgt->need_login && crq->event == IBMVFC_AE_ELS_LOGO)
+				tgt->logo_rcvd = 1;
+			if (!tgt->need_login || crq->event == IBMVFC_AE_ELS_PLOGI) {
+				ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
+				ibmvfc_reinit_host(vhost);
+			}
 		}
-
-		ibmvfc_reinit_host(vhost);
 		break;
 	case IBMVFC_AE_LINK_DOWN:
 	case IBMVFC_AE_ADAPTER_FAILED:
···
 
 	spin_lock_irqsave(vhost->host->host_lock, flags);
 	while (!done) {
-		/* Pull all the valid messages off the CRQ */
-		while ((crq = ibmvfc_next_crq(vhost)) != NULL) {
-			ibmvfc_handle_crq(crq, vhost);
-			crq->valid = 0;
-		}
-
 		/* Pull all the valid messages off the async CRQ */
 		while ((async = ibmvfc_next_async_crq(vhost)) != NULL) {
 			ibmvfc_handle_async(async, vhost);
 			async->valid = 0;
 		}
 
-		vio_enable_interrupts(vdev);
-		if ((crq = ibmvfc_next_crq(vhost)) != NULL) {
-			vio_disable_interrupts(vdev);
+		/* Pull all the valid messages off the CRQ */
+		while ((crq = ibmvfc_next_crq(vhost)) != NULL) {
 			ibmvfc_handle_crq(crq, vhost);
 			crq->valid = 0;
-		} else if ((async = ibmvfc_next_async_crq(vhost)) != NULL) {
+		}
+
+		vio_enable_interrupts(vdev);
+		if ((async = ibmvfc_next_async_crq(vhost)) != NULL) {
 			vio_disable_interrupts(vdev);
 			ibmvfc_handle_async(async, vhost);
 			async->valid = 0;
+		} else if ((crq = ibmvfc_next_crq(vhost)) != NULL) {
+			vio_disable_interrupts(vdev);
+			ibmvfc_handle_crq(crq, vhost);
+			crq->valid = 0;
 		} else
 			done = 1;
 	}
···
 		break;
 	case IBMVFC_MAD_FAILED:
 	default:
-		if (ibmvfc_retry_cmd(rsp->status, rsp->error))
+		if ((rsp->status & IBMVFC_VIOS_FAILURE) && rsp->error == IBMVFC_PLOGI_REQUIRED)
+			level += ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_plogi);
+		else if (tgt->logo_rcvd)
+			level += ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_plogi);
+		else if (ibmvfc_retry_cmd(rsp->status, rsp->error))
 			level += ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_send_prli);
 		else
 			ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT);
···
 		return;
 
 	kref_get(&tgt->kref);
+	tgt->logo_rcvd = 0;
 	evt = ibmvfc_get_event(vhost);
 	vhost->discovery_threads++;
 	ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_INIT_WAIT);

drivers/scsi/ibmvscsi/ibmvfc.h

···
 	int need_login;
 	int add_rport;
 	int init_retries;
+	int logo_rcvd;
 	u32 cancel_key;
 	struct ibmvfc_service_parms service_parms;
 	struct ibmvfc_service_parms service_parms_change;

drivers/scsi/ipr.c

···
 };
 
 static const struct ipr_chip_t ipr_chip[] = {
-	{ PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] },
-	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] },
-	{ PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] },
-	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] },
-	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, &ipr_chip_cfg[0] },
-	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] },
-	{ PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] }
+	{ PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, &ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, &ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, &ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, &ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, &ipr_chip_cfg[0] },
+	{ PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, &ipr_chip_cfg[1] },
+	{ PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, &ipr_chip_cfg[1] }
 };
 
 static int ipr_max_bus_speeds [] = {
···
 	INIT_LIST_HEAD(&ioa_cfg->used_res_q);
 	INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
 	init_waitqueue_head(&ioa_cfg->reset_wait_q);
+	init_waitqueue_head(&ioa_cfg->msi_wait_q);
 	ioa_cfg->sdt_state = INACTIVE;
 	if (ipr_enable_cache)
 		ioa_cfg->cache_state = CACHE_ENABLED;
···
 }
 
 /**
- * ipr_get_chip_cfg - Find adapter chip configuration
+ * ipr_get_chip_info - Find adapter chip information
  * @dev_id:		PCI device id struct
  *
  * Return value:
- * 	ptr to chip config on success / NULL on failure
+ * 	ptr to chip information on success / NULL on failure
  **/
-static const struct ipr_chip_cfg_t * __devinit
-ipr_get_chip_cfg(const struct pci_device_id *dev_id)
+static const struct ipr_chip_t * __devinit
+ipr_get_chip_info(const struct pci_device_id *dev_id)
 {
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
 		if (ipr_chip[i].vendor == dev_id->vendor &&
 		    ipr_chip[i].device == dev_id->device)
-			return ipr_chip[i].cfg;
+			return &ipr_chip[i];
 	return NULL;
+}
+
+/**
+ * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
+ * @pdev:		PCI device struct
+ *
+ * Description: Simply set the msi_received flag to 1 indicating that
+ * Message Signaled Interrupts are supported.
+ *
+ * Return value:
+ * 	0 on success / non-zero on failure
+ **/
+static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
+{
+	struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
+	unsigned long lock_flags = 0;
+	irqreturn_t rc = IRQ_HANDLED;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+	ioa_cfg->msi_received = 1;
+	wake_up(&ioa_cfg->msi_wait_q);
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+	return rc;
+}
+
+/**
+ * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
+ * @pdev:		PCI device struct
+ *
+ * Description: The return value from pci_enable_msi() can not always be
+ * trusted.  This routine sets up and initiates a test interrupt to determine
+ * if the interrupt is received via the ipr_test_intr() service routine.
+ * If the tests fails, the driver will fall back to LSI.
+ *
+ * Return value:
+ * 	0 on success / non-zero on failure
+ **/
+static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
+				  struct pci_dev *pdev)
+{
+	int rc;
+	volatile u32 int_reg;
+	unsigned long lock_flags = 0;
+
+	ENTER;
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	init_waitqueue_head(&ioa_cfg->msi_wait_q);
+	ioa_cfg->msi_received = 0;
+	ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
+	writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg);
+	int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+
+	rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
+	if (rc) {
+		dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
+		return rc;
+	} else if (ipr_debug)
+		dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
+
+	writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg);
+	int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
+	wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
+	ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
+
+	spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+	if (!ioa_cfg->msi_received) {
+		/* MSI test failed */
+		dev_info(&pdev->dev, "MSI test failed.  Falling back to LSI.\n");
+		rc = -EOPNOTSUPP;
+	} else if (ipr_debug)
+		dev_info(&pdev->dev, "MSI test succeeded.\n");
+
+	spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+
+	free_irq(pdev->irq, ioa_cfg);
+
+	LEAVE;
+
+	return rc;
 }
 
 /**
···
 		goto out;
 	}
 
-	if (!(rc = pci_enable_msi(pdev)))
-		dev_info(&pdev->dev, "MSI enabled\n");
-	else if (ipr_debug)
-		dev_info(&pdev->dev, "Cannot enable MSI\n");
-
 	dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
 
 	host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
···
 	ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
 		      sata_port_info.flags, &ipr_sata_ops);
 
-	ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id);
+	ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
 
-	if (!ioa_cfg->chip_cfg) {
+	if (!ioa_cfg->ipr_chip) {
 		dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
 			dev_id->vendor, dev_id->device);
 		goto out_scsi_host_put;
 	}
+
+	ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
 
 	if (ipr_transop_timeout)
 		ioa_cfg->transop_timeout = ipr_transop_timeout;
···
 		goto cleanup_nomem;
 	}
 
+	/* Enable MSI style interrupts if they are supported. */
+	if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
+		rc = ipr_test_msi(ioa_cfg, pdev);
+		if (rc == -EOPNOTSUPP)
+			pci_disable_msi(pdev);
+		else if (rc)
+			goto out_msi_disable;
+		else
+			dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
+	} else if (ipr_debug)
+		dev_info(&pdev->dev, "Cannot enable MSI.\n");
+
 	/* Save away PCI config space for use following IOA reset */
 	rc = pci_save_state(pdev);
 
···
 		ioa_cfg->ioa_unit_checked = 1;
 
 	ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
-	rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg);
+	rc = request_irq(pdev->irq, ipr_isr,
+			 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
+			 IPR_NAME, ioa_cfg);
 
 	if (rc) {
 		dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
···
 	ipr_free_mem(ioa_cfg);
 cleanup_nomem:
 	iounmap(ipr_regs);
+out_msi_disable:
+	pci_disable_msi(pdev);
 out_release_regions:
 	pci_release_regions(pdev);
 out_scsi_host_put:
 	scsi_host_put(host);
 out_disable:
-	pci_disable_msi(pdev);
 	pci_disable_device(pdev);
 	goto out;
 }

drivers/scsi/ipr.h

···
 /*
  * Literals
  */
-#define IPR_DRIVER_VERSION "2.4.2"
-#define IPR_DRIVER_DATE "(January 21, 2009)"
+#define IPR_DRIVER_VERSION "2.4.3"
+#define IPR_DRIVER_DATE "(June 10, 2009)"
 
 /*
  * IPR_MAX_CMD_PER_LUN: This defines the maximum number of outstanding
···
 struct ipr_chip_t {
 	u16 vendor;
 	u16 device;
+	u16 intr_type;
+#define IPR_USE_LSI			0x00
+#define IPR_USE_MSI			0x01
 	const struct ipr_chip_cfg_t *cfg;
 };
 
···
 	u8 needs_hard_reset:1;
 	u8 dual_raid:1;
 	u8 needs_warm_reset:1;
+	u8 msi_received:1;
 
 	u8 revid;
 
···
 
 	unsigned int transop_timeout;
 	const struct ipr_chip_cfg_t *chip_cfg;
+	const struct ipr_chip_t *ipr_chip;
 
 	void __iomem *hdw_dma_regs;	/* iomapped PCI memory space */
 	unsigned long hdw_dma_regs_pci;	/* raw PCI memory space */
···
 	struct work_struct work_q;
 
 	wait_queue_head_t reset_wait_q;
+	wait_queue_head_t msi_wait_q;
 
 	struct ipr_dump *dump;
 	enum ipr_sdt_state sdt_state;

drivers/scsi/iscsi_tcp.c

···
 
 		if (r < 0) {
 			iscsi_tcp_segment_unmap(segment);
-			if (copied || r == -EAGAIN)
-				break;
 			return r;
 		}
 		copied += r;
···
 
 	while (1) {
 		rc = iscsi_sw_tcp_xmit_segment(tcp_conn, segment);
-		if (rc < 0) {
+		/*
+		 * We may not have been able to send data because the conn
+		 * is getting stopped. libiscsi will know so propogate err
+		 * for it to do the right thing.
+		 */
+		if (rc == -EAGAIN)
+			return rc;
+		else if (rc < 0) {
 			rc = ISCSI_ERR_XMIT_FAILED;
 			goto error;
-		}
-		if (rc == 0)
+		} else if (rc == 0)
 			break;
 
 		consumed += rc;

drivers/scsi/libfc/fc_disc.c

···
 
 #define	FC_DISC_DELAY		3
 
-static int fc_disc_debug;
-
-#define FC_DEBUG_DISC(fmt...)			\
-	do {					\
-		if (fc_disc_debug)		\
-			FC_DBG(fmt);		\
-	} while (0)
-
 static void fc_disc_gpn_ft_req(struct fc_disc *);
 static void fc_disc_gpn_ft_resp(struct fc_seq *, struct fc_frame *, void *);
 static int fc_disc_new_target(struct fc_disc *, struct fc_rport *,
···
 	struct fc_rport_libfc_priv *rdata = rport->dd_data;
 	struct fc_disc *disc = &lport->disc;
 
-	FC_DEBUG_DISC("Received a %d event for port (%6x)\n", event,
-		      rport->port_id);
+	FC_DISC_DBG(disc, "Received a %d event for port (%6x)\n", event,
+		    rport->port_id);
 
 	switch (event) {
 	case RPORT_EV_CREATED:
···
 
 	lport = disc->lport;
 
-	FC_DEBUG_DISC("Received an RSCN event on port (%6x)\n",
-		      fc_host_port_id(lport->host));
+	FC_DISC_DBG(disc, "Received an RSCN event\n");
 
 	/* make sure the frame contains an RSCN message */
 	rp = fc_frame_payload_get(fp, sizeof(*rp));
···
 		 */
 		switch (fmt) {
 		case ELS_ADDR_FMT_PORT:
-			FC_DEBUG_DISC("Port address format for port (%6x)\n",
-				      ntoh24(pp->rscn_fid));
+			FC_DISC_DBG(disc, "Port address format for port "
+				    "(%6x)\n", ntoh24(pp->rscn_fid));
 			dp = kzalloc(sizeof(*dp), GFP_KERNEL);
 			if (!dp) {
 				redisc = 1;
···
 		case ELS_ADDR_FMT_DOM:
 		case ELS_ADDR_FMT_FAB:
 		default:
-			FC_DEBUG_DISC("Address format is (%d)\n", fmt);
+			FC_DISC_DBG(disc, "Address format is (%d)\n", fmt);
 			redisc = 1;
 			break;
 		}
 	}
 	lport->tt.seq_els_rsp_send(sp, ELS_LS_ACC, NULL);
 	if (redisc) {
-		FC_DEBUG_DISC("RSCN received: rediscovering\n");
+		FC_DISC_DBG(disc, "RSCN received: rediscovering\n");
 		fc_disc_restart(disc);
 	} else {
-		FC_DEBUG_DISC("RSCN received: not rediscovering. "
-			      "redisc %d state %d in_prog %d\n",
-			      redisc, lport->state, disc->pending);
+		FC_DISC_DBG(disc, "RSCN received: not rediscovering. "
+			    "redisc %d state %d in_prog %d\n",
+			    redisc, lport->state, disc->pending);
 		list_for_each_entry_safe(dp, next, &disc_ports, peers) {
 			list_del(&dp->peers);
 			rport = lport->tt.rport_lookup(lport, dp->ids.port_id);
···
 	fc_frame_free(fp);
 	return;
 reject:
-	FC_DEBUG_DISC("Received a bad RSCN frame\n");
+	FC_DISC_DBG(disc, "Received a bad RSCN frame\n");
 	rjt_data.fp = NULL;
 	rjt_data.reason = ELS_RJT_LOGIC;
 	rjt_data.explan = ELS_EXPL_NONE;
···
 		mutex_unlock(&disc->disc_mutex);
 		break;
 	default:
-		FC_DBG("Received an unsupported request. opcode (%x)\n", op);
+		FC_DISC_DBG(disc, "Received an unsupported request, "
+			    "the opcode is (%x)\n", op);
 		break;
 	}
 }
···
 	struct fc_rport_libfc_priv *rdata, *next;
 	struct fc_lport *lport = disc->lport;
 
-	FC_DEBUG_DISC("Restarting discovery for port (%6x)\n",
-		      fc_host_port_id(lport->host));
+	FC_DISC_DBG(disc, "Restarting discovery\n");
 
 	list_for_each_entry_safe(rdata, next, &disc->rports, peers) {
 		rport = PRIV_TO_RPORT(rdata);
-		FC_DEBUG_DISC("list_del(%6x)\n", rport->port_id);
 		list_del(&rdata->peers);
 		lport->tt.rport_logoff(rport);
 	}
···
 	struct fc_lport *lport = disc->lport;
 	enum fc_disc_event event;
 
-	FC_DEBUG_DISC("Discovery complete for port (%6x)\n",
-		      fc_host_port_id(lport->host));
+	FC_DISC_DBG(disc, "Discovery complete\n");
 
 	event = disc->event;
 	disc->event = DISC_EV_NONE;
···
 {
 	struct fc_lport *lport = disc->lport;
 	unsigned long delay = 0;
-	if (fc_disc_debug)
-		FC_DBG("Error %ld, retries %d/%d\n",
-		       PTR_ERR(fp), disc->retry_count,
-		       FC_DISC_RETRY_LIMIT);
+
+	FC_DISC_DBG(disc, "Error %ld, retries %d/%d\n",
+		    PTR_ERR(fp), disc->retry_count,
+		    FC_DISC_RETRY_LIMIT);
 
 	if (!fp || PTR_ERR(fp) == -FC_EX_TIMEOUT) {
 		/*
···
 					      &disc->rogue_rports);
 				lport->tt.rport_login(rport);
 			} else
-				FC_DBG("Failed to allocate memory for "
-				       "the newly discovered port (%6x)\n",
-				       dp.ids.port_id);
+				printk(KERN_WARNING "libfc: Failed to allocate "
+				       "memory for the newly discovered port "
+				       "(%6x)\n", dp.ids.port_id);
 		}
 
 		if (np->fp_flags & FC_NS_FID_LAST) {
···
 	 */
 	if (error == 0 && len > 0 && len < sizeof(*np)) {
 		if (np != &disc->partial_buf) {
-			FC_DEBUG_DISC("Partial buffer remains "
-				      "for discovery by (%6x)\n",
-				      fc_host_port_id(lport->host));
+			FC_DISC_DBG(disc, "Partial buffer remains "
+				    "for discovery\n");
 			memcpy(&disc->partial_buf, np, len);
 		}
 		disc->buf_len = (unsigned char) len;
···
 	int error;
 
 	mutex_lock(&disc->disc_mutex);
-	FC_DEBUG_DISC("Received a GPN_FT response on port (%6x)\n",
-		      fc_host_port_id(disc->lport->host));
+	FC_DISC_DBG(disc, "Received a GPN_FT response\n");
 
 	if (IS_ERR(fp)) {
 		fc_disc_error(disc, fp);
···
 	    disc->seq_count == 0) {
 		cp = fc_frame_payload_get(fp, sizeof(*cp));
 		if (!cp) {
-			FC_DBG("GPN_FT response too short, len %d\n",
-			       fr_len(fp));
+			FC_DISC_DBG(disc, "GPN_FT response too short, len %d\n",
+				    fr_len(fp));
 		} else if (ntohs(cp->ct_cmd) == FC_FS_ACC) {
 
 			/* Accepted, parse the response. */
 			buf = cp + 1;
 			len -= sizeof(*cp);
 		} else if (ntohs(cp->ct_cmd) == FC_FS_RJT) {
-			FC_DBG("GPN_FT rejected reason %x exp %x "
-			       "(check zoning)\n", cp->ct_reason,
-			       cp->ct_explan);
+			FC_DISC_DBG(disc, "GPN_FT rejected reason %x exp %x "
+				    "(check zoning)\n", cp->ct_reason,
+				    cp->ct_explan);
 			disc->event = DISC_EV_FAILED;
 			fc_disc_done(disc);
 		} else {
-			FC_DBG("GPN_FT unexpected response code %x\n",
-			       ntohs(cp->ct_cmd));
+			FC_DISC_DBG(disc, "GPN_FT unexpected response code "
+				    "%x\n", ntohs(cp->ct_cmd));
 		}
 	} else if (fr_sof(fp) == FC_SOF_N3 &&
 		   seq_cnt == disc->seq_count) {
 		buf = fh + 1;
 	} else {
-		FC_DBG("GPN_FT unexpected frame - out of sequence? "
-		       "seq_cnt %x expected %x sof %x eof %x\n",
-		       seq_cnt, disc->seq_count, fr_sof(fp), fr_eof(fp));
+		FC_DISC_DBG(disc, "GPN_FT unexpected frame - out of sequence? "
+			    "seq_cnt %x expected %x sof %x eof %x\n",
+			    seq_cnt, disc->seq_count, fr_sof(fp), fr_eof(fp));
 	}
 	if (buf) {
 		error = fc_disc_gpn_ft_parse(disc, buf, len);

drivers/scsi/libfc/fc_exch.c

···
 #include <scsi/libfc.h>
 #include <scsi/fc_encode.h>
 
-/*
- * fc_exch_debug can be set in debugger or at compile time to get more logs.
- */
-static int fc_exch_debug;
-
-#define FC_DEBUG_EXCH(fmt...)			\
-	do {					\
-		if (fc_exch_debug)		\
-			FC_DBG(fmt);		\
-	} while (0)
-
-static struct kmem_cache *fc_em_cachep;	/* cache for exchanges */
+static struct kmem_cache *fc_em_cachep;        /* cache for exchanges */
 
 /*
  * Structure and function definitions for managing Fibre Channel Exchanges
···
 	if (ep->state & (FC_EX_RST_CLEANUP | FC_EX_DONE))
 		return;
 
-	FC_DEBUG_EXCH("Exchange (%4x) timed out, notifying the upper layer\n",
-		      ep->xid);
+	FC_EXCH_DBG(ep, "Exchange timed out, notifying the upper layer\n");
+
 	if (schedule_delayed_work(&ep->timeout_work,
 				  msecs_to_jiffies(timer_msec)))
 		fc_exch_hold(ep);		/* hold for timer */
···
 		/* alloc a new xid */
 		xid = fc_em_alloc_xid(mp, fp);
 		if (!xid) {
-			printk(KERN_ERR "fc_em_alloc_xid() failed\n");
+			printk(KERN_WARNING "libfc: Failed to allocate an exhange\n");
 			goto err;
 		}
 	}
···
 	struct fc_exch *ep = fc_seq_exch(sp);
 
 	sp = fc_seq_alloc(ep, ep->seq_id++);
-	FC_DEBUG_EXCH("exch %4x f_ctl %6x seq %2x\n",
-		      ep->xid, ep->f_ctl, sp->id);
+	FC_EXCH_DBG(ep, "f_ctl %6x seq %2x\n",
+		    ep->f_ctl, sp->id);
 	return sp;
 }
 /*
···
 		fc_exch_els_rec(sp, els_data->fp);
 		break;
 	default:
-		FC_DBG("Invalid ELS CMD:%x\n", els_cmd);
+		FC_EXCH_DBG(fc_seq_exch(sp), "Invalid ELS CMD:%x\n", els_cmd);
 	}
 }
 EXPORT_SYMBOL(fc_seq_els_rsp_send);
···
 			lp->tt.lport_recv(lp, sp, fp);
 		fc_exch_release(ep);	/* release from lookup */
 	} else {
-		FC_DEBUG_EXCH("exch/seq lookup failed: reject %x\n", reject);
+		FC_EM_DBG(mp, "exch/seq lookup failed: reject %x\n", reject);
 		fc_frame_free(fp);
 	}
 }
···
 	sp = fc_seq_lookup_orig(mp, fp);	/* doesn't hold sequence */
 	if (!sp) {
 		atomic_inc(&mp->stats.xid_not_found);
-		FC_DEBUG_EXCH("seq lookup failed\n");
+		FC_EM_DBG(mp, "seq lookup failed\n");
 	} else {
 		atomic_inc(&mp->stats.non_bls_resp);
-		FC_DEBUG_EXCH("non-BLS response to sequence");
+		FC_EM_DBG(mp, "non-BLS response to sequence");
 	}
 	fc_frame_free(fp);
 }
···
 	int rc = 1, has_rec = 0;
 
 	fh = fc_frame_header_get(fp);
-	FC_DEBUG_EXCH("exch: BLS rctl %x - %s\n",
-		      fh->fh_r_ctl, fc_exch_rctl_name(fh->fh_r_ctl));
+	FC_EXCH_DBG(ep, "exch: BLS rctl %x - %s\n", fh->fh_r_ctl,
+		    fc_exch_rctl_name(fh->fh_r_ctl));
 
 	if (cancel_delayed_work_sync(&ep->timeout_work))
 		fc_exch_release(ep);	/* release from pending timer hold */
···
 		case FC_RCTL_ACK_0:
 			break;
 		default:
-			FC_DEBUG_EXCH("BLS rctl %x - %s received",
-				      fh->fh_r_ctl,
-				      fc_exch_rctl_name(fh->fh_r_ctl));
+			FC_EXCH_DBG(ep, "BLS rctl %x - %s received",
+				    fh->fh_r_ctl,
+				    fc_exch_rctl_name(fh->fh_r_ctl));
 			break;
 		}
 		fc_frame_free(fp);
···
 
 		if (err == -FC_EX_CLOSED || err == -FC_EX_TIMEOUT)
 			goto cleanup;
-		FC_DBG("Cannot process RRQ, because of frame error %d\n", err);
+		FC_EXCH_DBG(aborted_ep, "Cannot process RRQ, "
+			    "frame error %d\n", err);
 		return;
 	}
 
···
 
 	switch (op) {
 	case ELS_LS_RJT:
-		FC_DBG("LS_RJT for RRQ");
+		FC_EXCH_DBG(aborted_ep, "LS_RJT for RRQ");
 		/* fall through */
 	case ELS_LS_ACC:
 		goto cleanup;
 	default:
-		FC_DBG("unexpected response op %x for RRQ", op);
+		FC_EXCH_DBG(aborted_ep, "unexpected response op %x "
+			    "for RRQ", op);
 		return;
 	}
 
···
 	size_t len;
 
 	if (max_xid <= min_xid || min_xid == 0 || max_xid == FC_XID_UNKNOWN) {
-		FC_DBG("Invalid min_xid 0x:%x and max_xid 0x:%x\n",
-		       min_xid, max_xid);
+		FC_LPORT_DBG(lp, "Invalid min_xid 0x:%x and max_xid 0x:%x\n",
+			     min_xid, max_xid);
 		return NULL;
 	}
 
···
 
 	/* lport lock ? */
 	if (!lp || !mp || (lp->state == LPORT_ST_NONE)) {
-		FC_DBG("fc_lport or EM is not allocated and configured");
+		FC_LPORT_DBG(lp, "Receiving frames for an lport that "
+			     "has not been initialized correctly\n");
 		fc_frame_free(fp);
 		return;
 	}
···
 			fc_exch_recv_req(lp, mp, fp);
 		break;
 	default:
-		FC_DBG("dropping invalid frame (eof %x)", fr_eof(fp));
+		FC_EM_DBG(mp, "dropping invalid frame (eof %x)", fr_eof(fp));
 		fc_frame_free(fp);
 		break;
 	}

drivers/scsi/libfc/fc_fcp.c

···
 MODULE_DESCRIPTION("libfc");
 MODULE_LICENSE("GPL v2");
 
-static int fc_fcp_debug;
-
-#define FC_DEBUG_FCP(fmt...)			\
-	do {					\
-		if (fc_fcp_debug)		\
-			FC_DBG(fmt);		\
-	} while (0)
+unsigned int fc_debug_logging;
+module_param_named(debug_logging, fc_debug_logging, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels");
 
 static struct kmem_cache *scsi_pkt_cachep;
 
···
 		if ((fr_flags(fp) & FCPHF_CRC_UNCHECKED) &&
 		    fc_frame_crc_check(fp))
 			goto crc_err;
-		FC_DEBUG_FCP("data received past end. len %zx offset %zx "
-			     "data_len %x\n", len, offset, fsp->data_len);
+		FC_FCP_DBG(fsp, "data received past end. len %zx offset %zx "
+			   "data_len %x\n", len, offset, fsp->data_len);
 		fc_fcp_retry_cmd(fsp);
 		return;
 	}
···
 			stats->ErrorFrames++;
 			/* FIXME - per cpu count, not total count! */
 			if (stats->InvalidCRCCount++ < 5)
-				printk(KERN_WARNING "CRC error on data frame for port (%6x)\n",
+				printk(KERN_WARNING "libfc: CRC error on data "
+				       "frame for port (%6x)\n",
 				       fc_host_port_id(lp->host));
 			/*
 			 * Assume the frame is total garbage.
···
 	WARN_ON(seq_blen <= 0);
 	if (unlikely(offset + seq_blen > fsp->data_len)) {
 		/* this should never happen */
-		FC_DEBUG_FCP("xfer-ready past end. seq_blen %zx offset %zx\n",
-			     seq_blen, offset);
+		FC_FCP_DBG(fsp, "xfer-ready past end. seq_blen %zx "
+			   "offset %zx\n", seq_blen, offset);
 		fc_fcp_send_abort(fsp);
 		return 0;
 	} else if (offset != fsp->xfer_len) {
 		/* Out of Order Data Request - no problem, but unexpected. */
-		FC_DEBUG_FCP("xfer-ready non-contiguous. "
-			     "seq_blen %zx offset %zx\n", seq_blen, offset);
+		FC_FCP_DBG(fsp, "xfer-ready non-contiguous. "
+			   "seq_blen %zx offset %zx\n", seq_blen, offset);
 	}
 
 	/*
···
 	t_blen = fsp->max_payload;
 	if (lp->seq_offload) {
 		t_blen = min(seq_blen, (size_t)lp->lso_max);
-		FC_DEBUG_FCP("fsp=%p:lso:blen=%zx lso_max=0x%x t_blen=%zx\n",
+		FC_FCP_DBG(fsp, "fsp=%p:lso:blen=%zx lso_max=0x%x t_blen=%zx\n",
 			   fsp, seq_blen, lp->lso_max, t_blen);
 	}
 
···
 	if (!can_queue)
 		can_queue = 1;
 	lp->host->can_queue = can_queue;
-	shost_printk(KERN_ERR, lp->host, "Could not allocate frame.\n"
+	shost_printk(KERN_ERR, lp->host, "libfc: Could not allocate frame.\n"
 		     "Reducing can_queue to %d.\n", can_queue);
 done:
 	spin_unlock_irqrestore(lp->host->host_lock, flags);
···
 
 		fc_fcp_resp(fsp, fp);
 	} else {
-		FC_DBG("unexpected frame.  r_ctl %x\n", r_ctl);
+		FC_FCP_DBG(fsp, "unexpected frame.  r_ctl %x\n", r_ctl);
 	}
 unlock:
 	fc_fcp_unlock_pkt(fsp);
···
 			return;
 		}
 		fsp->status_code = FC_DATA_OVRRUN;
-		FC_DBG("tgt %6x xfer len %zx greater than expected len %x. "
-		       "data len %x\n",
-		       fsp->rport->port_id,
-		       fsp->xfer_len, expected_len, fsp->data_len);
+		FC_FCP_DBG(fsp, "tgt %6x xfer len %zx greater than expected, "
+			   "len %x, data len %x\n",
+			   fsp->rport->port_id,
+			   fsp->xfer_len, expected_len, fsp->data_len);
 	}
 	fc_fcp_complete_locked(fsp);
 	return;
 
 len_err:
-	FC_DBG("short FCP response. flags 0x%x len %u respl %u snsl %u\n",
-	       flags, fr_len(fp), respl, snsl);
+	FC_FCP_DBG(fsp, "short FCP response. flags 0x%x len %u respl %u "
+		   "snsl %u\n", flags, fr_len(fp), respl, snsl);
 err:
 	fsp->status_code = FC_ERROR;
 	fc_fcp_complete_locked(fsp);
···
 	if (fc_fcp_lock_pkt(fsp))
 		return;
 
-	switch (error) {
-	case -FC_EX_CLOSED:
+	if (error == -FC_EX_CLOSED) {
 		fc_fcp_retry_cmd(fsp);
 		goto unlock;
-	default:
-		FC_DBG("unknown error %ld\n", PTR_ERR(fp));
 	}
+
 	/*
 	 * clear abort pending, because the lower layer
 	 * decided to force completion.
···
 	fsp->wait_for_comp = 0;
 
 	if (!rc) {
-		FC_DBG("target abort cmd  failed\n");
+		FC_FCP_DBG(fsp, "target abort cmd  failed\n");
 		rc = FAILED;
 	} else if (fsp->state & FC_SRB_ABORTED) {
-		FC_DBG("target abort cmd  passed\n");
+		FC_FCP_DBG(fsp, "target abort cmd  passed\n");
 		rc = SUCCESS;
 		fc_fcp_complete_locked(fsp);
 	}
···
 	spin_unlock_bh(&fsp->scsi_pkt_lock);
 
 	if (!rc) {
-		FC_DBG("lun reset failed\n");
+		FC_SCSI_DBG(lp, "lun reset failed\n");
 		return FAILED;
 	}
 
···
 	if (fsp->cdb_status != FCP_TMF_CMPL)
 		return FAILED;
 
-	FC_DBG("lun reset to lun %u completed\n", lun);
+	FC_SCSI_DBG(lp, "lun reset to lun %u completed\n", lun);
 	fc_fcp_cleanup_each_cmd(lp, id, lun, FC_CMD_ABORTED);
 	return SUCCESS;
 }
···
 		rjt = fc_frame_payload_get(fp, sizeof(*rjt));
 		switch (rjt->er_reason) {
 		default:
-			FC_DEBUG_FCP("device %x unexpected REC reject "
-				     "reason %d expl %d\n",
-				     fsp->rport->port_id, rjt->er_reason,
-				     rjt->er_explan);
+			FC_FCP_DBG(fsp, "device %x unexpected REC reject "
+				   "reason %d expl %d\n",
+				   fsp->rport->port_id, rjt->er_reason,
+				   rjt->er_explan);
 			/* fall through */
 		case ELS_RJT_UNSUP:
-			FC_DEBUG_FCP("device does not support REC\n");
+			FC_FCP_DBG(fsp, "device does not support REC\n");
 			rp = fsp->rport->dd_data;
 			/*
 			 * if we do not spport RECs or got some bogus
···
 		break;
 
 	default:
-		FC_DBG("REC %p fid %x error unexpected error %d\n",
-		       fsp, fsp->rport->port_id, error);
+		FC_FCP_DBG(fsp, "REC %p fid %x error unexpected error %d\n",
+			   fsp, fsp->rport->port_id, error);
 		fsp->status_code = FC_CMD_PLOGO;
 		/* fall through */
 
···
 		 * Assume REC or LS_ACC was lost.
 		 * The exchange manager will have aborted REC, so retry.
 		 */
-		FC_DBG("REC fid %x error error %d retry %d/%d\n",
-		       fsp->rport->port_id, error, fsp->recov_retry,
-		       FC_MAX_RECOV_RETRY);
+		FC_FCP_DBG(fsp, "REC fid %x error error %d retry %d/%d\n",
+			   fsp->rport->port_id, error, fsp->recov_retry,
+			   FC_MAX_RECOV_RETRY);
 		if (fsp->recov_retry++ < FC_MAX_RECOV_RETRY)
 			fc_fcp_rec(fsp);
 		else
···
 	if (lp->state != LPORT_ST_READY)
 		return rc;
 
+	FC_SCSI_DBG(lp, "Resetting rport (%6x)\n", rport->port_id);
+
 	fsp = fc_fcp_pkt_alloc(lp, GFP_NOIO);
 	if (fsp == NULL) {
-		FC_DBG("could not allocate scsi_pkt\n");
+		printk(KERN_WARNING "libfc: could not allocate scsi_pkt\n");
 		sc_cmd->result = DID_NO_CONNECT << 16;
 		goto out;
 	}
···
 	struct fc_lport *lp = shost_priv(shost);
 	unsigned long wait_tmo;
 
+	FC_SCSI_DBG(lp, "Resetting host\n");
+
 	lp->tt.lport_reset(lp);
 	wait_tmo = jiffies + FC_HOST_RESET_TIMEOUT;
 	while (!fc_fcp_lport_queue_ready(lp) && time_before(jiffies, wait_tmo))
 		msleep(1000);
 
 	if (fc_fcp_lport_queue_ready(lp)) {
-		shost_printk(KERN_INFO, shost, "Host reset succeeded.\n");
+		shost_printk(KERN_INFO, shost, "libfc: Host reset succeeded "
+			     "on port (%6x)\n", fc_host_port_id(lp->host));
 		return SUCCESS;
 	} else {
-		shost_printk(KERN_INFO, shost, "Host reset failed. "
-			     "lport not ready.\n");
+		shost_printk(KERN_INFO, shost, "libfc: Host reset failed, "
+			     "port (%6x) is not ready.\n",
+			     fc_host_port_id(lp->host));
 		return FAILED;
 	}
 }
···
 	struct fc_fcp_internal *si = fc_get_scsi_internal(lp);
 
 	if (!list_empty(&si->scsi_pkt_queue))
-		printk(KERN_ERR "Leaked scsi packets.\n");
+		printk(KERN_ERR "libfc: Leaked SCSI packets when destroying "
+		       "port (%6x)\n", fc_host_port_id(lp->host));
 
 	mempool_destroy(si->scsi_pkt_pool);
 	kfree(si);
···
 					    sizeof(struct fc_fcp_pkt),
 					    0, SLAB_HWCACHE_ALIGN, NULL);
 	if (scsi_pkt_cachep == NULL) {
-		FC_DBG("Unable to allocate SRB cache...module load failed!");
+		printk(KERN_ERR "libfc: Unable to allocate SRB cache, "
+		       "module load failed!");
 		return -ENOMEM;
 	}
 

drivers/scsi/libfc/fc_lport.c

···
 
 #define	DNS_DELAY	      3 /* Discovery delay after RSCN (in seconds)*/
 
-static int fc_lport_debug;
-
-#define FC_DEBUG_LPORT(fmt...)			\
-	do {					\
-		if (fc_lport_debug)		\
-			FC_DBG(fmt);		\
-	} while (0)
-
 static void fc_lport_error(struct fc_lport *, struct fc_frame *);
 
 static void fc_lport_enter_reset(struct fc_lport *);
···
 				    struct fc_rport *rport,
 				    enum fc_rport_event event)
 {
-	FC_DEBUG_LPORT("Received a %d event for port (%6x)\n", event,
-		       rport->port_id);
+	FC_LPORT_DBG(lport, "Received a %d event for port (%6x)\n", event,
+		     rport->port_id);
 
 	switch (event) {
 	case RPORT_EV_CREATED:
···
 				lport->dns_rp = rport;
 				fc_lport_enter_rpn_id(lport);
 			} else {
-				FC_DEBUG_LPORT("Received an CREATED event on "
-					       "port (%6x) for the directory "
-					       "server, but the lport is not "
-					       "in the DNS state, it's in the "
-					       "%d state", rport->port_id,
-					       lport->state);
+				FC_LPORT_DBG(lport, "Received an CREATED event "
+					     "on port (%6x) for the directory "
+					     "server, but the lport is not "
+					     "in the DNS state, it's in the "
+					     "%d state", rport->port_id,
+					     lport->state);
 				lport->tt.rport_logoff(rport);
 			}
 			mutex_unlock(&lport->lp_mutex);
 		} else
-			FC_DEBUG_LPORT("Received an event for port (%6x) "
-				       "which is not the directory server\n",
-				       rport->port_id);
+			FC_LPORT_DBG(lport, "Received an event for port (%6x) "
+				     "which is not the directory server\n",
+				     rport->port_id);
 		break;
 	case RPORT_EV_LOGO:
 	case RPORT_EV_FAILED:
···
 			mutex_unlock(&lport->lp_mutex);
 
 		} else
-			FC_DEBUG_LPORT("Received an event for port (%6x) "
-				       "which is not the directory server\n",
-				       rport->port_id);
+			FC_LPORT_DBG(lport, "Received an event for port (%6x) "
+				     "which is not the directory server\n",
+				     rport->port_id);
 		break;
 	case RPORT_EV_NONE:
 		break;
···
 static void fc_lport_recv_rlir_req(struct fc_seq *sp, struct fc_frame *fp,
 				   struct fc_lport *lport)
 {
-	FC_DEBUG_LPORT("Received RLIR request while in state %s\n",
-		       fc_lport_state(lport));
+	FC_LPORT_DBG(lport, "Received RLIR request while in state %s\n",
+		     fc_lport_state(lport));
 
 	lport->tt.seq_els_rsp_send(sp, ELS_LS_ACC, NULL);
 	fc_frame_free(fp);
···
 	void *dp;
 	u32 f_ctl;
 
-	FC_DEBUG_LPORT("Received RLIR request while in state %s\n",
-		       fc_lport_state(lport));
+	FC_LPORT_DBG(lport, "Received RLIR request while in state %s\n",
+		     fc_lport_state(lport));
 
 	len = fr_len(in_fp) - sizeof(struct fc_frame_header);
 	pp = fc_frame_payload_get(in_fp, len);
···
 	size_t len;
 	u32 f_ctl;
 
-	FC_DEBUG_LPORT("Received RNID request while in state %s\n",
-		       fc_lport_state(lport));
+	FC_LPORT_DBG(lport, "Received RNID request while in state %s\n",
+		     fc_lport_state(lport));
 
 	req = fc_frame_payload_get(in_fp, sizeof(*req));
 	if (!req) {
···
 	size_t len;
 	u32 f_ctl;
 
-	FC_DEBUG_LPORT("Received ADISC request while in state %s\n",
-		       fc_lport_state(lport));
+	FC_LPORT_DBG(lport, "Received ADISC request while in state %s\n",
+		     fc_lport_state(lport));
 
 	req = fc_frame_payload_get(in_fp, sizeof(*req));
 	if (!req) {
···
  */
 void fc_linkup(struct fc_lport *lport)
 {
-	FC_DEBUG_LPORT("Link is up for port (%6x)\n",
-		       fc_host_port_id(lport->host));
+	printk(KERN_INFO "libfc: Link up on port (%6x)\n",
+	       fc_host_port_id(lport->host));
 
 	mutex_lock(&lport->lp_mutex);
 	if (!lport->link_up) {
···
 void fc_linkdown(struct fc_lport *lport)
 {
 	mutex_lock(&lport->lp_mutex);
-	FC_DEBUG_LPORT("Link is down for port (%6x)\n",
-		       fc_host_port_id(lport->host));
+	printk(KERN_INFO "libfc: Link down on port (%6x)\n",
+	       fc_host_port_id(lport->host));
 
 	if (lport->link_up) {
 		lport->link_up = 0;
···
 {
 	switch (event) {
 	case DISC_EV_SUCCESS:
-		FC_DEBUG_LPORT("Got a SUCCESS event for port (%6x)\n",
-			       fc_host_port_id(lport->host));
+		FC_LPORT_DBG(lport, "Discovery succeeded\n");
 		break;
 	case DISC_EV_FAILED:
-		FC_DEBUG_LPORT("Got a FAILED event for port (%6x)\n",
-			       fc_host_port_id(lport->host));
+		printk(KERN_ERR "libfc: Discovery failed for port (%6x)\n",
+		       fc_host_port_id(lport->host));
 		mutex_lock(&lport->lp_mutex);
 		fc_lport_enter_reset(lport);
 		mutex_unlock(&lport->lp_mutex);
···
  */
 static void fc_lport_enter_ready(struct fc_lport *lport)
 {
-	FC_DEBUG_LPORT("Port (%6x) entered Ready from state %s\n",
-		       fc_host_port_id(lport->host), fc_lport_state(lport));
+	FC_LPORT_DBG(lport, "Entered READY from state %s\n",
+		     fc_lport_state(lport));
 
 	fc_lport_state_enter(lport, LPORT_ST_READY);
 
···
 	u32 local_fid;
 	u32 f_ctl;
 
-	FC_DEBUG_LPORT("Received FLOGI request while in state %s\n",
-		       fc_lport_state(lport));
+	FC_LPORT_DBG(lport, "Received FLOGI request while in state %s\n",
+		     fc_lport_state(lport));
 
 	fh = fc_frame_header_get(rx_fp);
 	remote_fid = ntoh24(fh->fh_s_id);
···
 		goto out;
 	remote_wwpn = get_unaligned_be64(&flp->fl_wwpn);
 	if (remote_wwpn == lport->wwpn) {
-		FC_DBG("FLOGI from port with same WWPN %llx "
-		       "possible configuration error\n",
-		       (unsigned long long)remote_wwpn);
+		printk(KERN_WARNING "libfc: Received FLOGI from port "
+		       "with same WWPN %llx\n", remote_wwpn);
 		goto out;
 	}
-	FC_DBG("FLOGI from port WWPN %llx\n", (unsigned long long)remote_wwpn);
+	FC_LPORT_DBG(lport, "FLOGI from port WWPN %llx\n", remote_wwpn);
 
 	/*
 	 * XXX what is the right thing to do for FIDs?
···
 			}
 		}
 	} else {
-		FC_DBG("dropping invalid frame (eof %x)\n", fr_eof(fp));
+		FC_LPORT_DBG(lport, "dropping invalid frame (eof %x)\n",
+			     fr_eof(fp));
 		fc_frame_free(fp);
 	}
 	mutex_unlock(&lport->lp_mutex);
···
  */
 static void fc_lport_enter_reset(struct fc_lport *lport)
 {
-	FC_DEBUG_LPORT("Port (%6x) entered RESET state from %s state\n",
-		       fc_host_port_id(lport->host), fc_lport_state(lport));
+	FC_LPORT_DBG(lport, "Entered RESET state from %s state\n",
+		     fc_lport_state(lport));
 
 	fc_lport_state_enter(lport, LPORT_ST_RESET);
 
···
 static void fc_lport_error(struct fc_lport *lport, struct fc_frame *fp)
 {
 	unsigned long delay = 0;
-	FC_DEBUG_LPORT("Error %ld in state %s, retries %d\n",
-		       PTR_ERR(fp), fc_lport_state(lport),
-		       lport->retry_count);
+	FC_LPORT_DBG(lport, "Error %ld in state %s, retries %d\n",
+		     PTR_ERR(fp), fc_lport_state(lport),
+		     lport->retry_count);
 
 	if (!fp || PTR_ERR(fp) == -FC_EX_TIMEOUT) {
 		/*
···
 
 	mutex_lock(&lport->lp_mutex);
 
-	FC_DEBUG_LPORT("Received a RFT_ID response\n");
+	FC_LPORT_DBG(lport, "Received a RFT_ID response\n");
 
 	if (lport->state != LPORT_ST_RFT_ID) {
-		FC_DBG("Received a RFT_ID response, but in state %s\n",
-		       fc_lport_state(lport));
+		FC_LPORT_DBG(lport, "Received a RFT_ID response, but in state "
+			     "%s\n", fc_lport_state(lport));
 		if (IS_ERR(fp))
 			goto err;
 		goto out;
···
 
 	mutex_lock(&lport->lp_mutex);
 
-	FC_DEBUG_LPORT("Received a RPN_ID response\n");
+	FC_LPORT_DBG(lport, "Received a RPN_ID response\n");
 
 	if (lport->state != LPORT_ST_RPN_ID) {
-		FC_DBG("Received a RPN_ID response, but in state %s\n",
-		       fc_lport_state(lport));
+		FC_LPORT_DBG(lport, "Received a RPN_ID response, but in state "
+			     "%s\n", fc_lport_state(lport));
 		if (IS_ERR(fp))
 			goto err;
 		goto out;
···
 
 	mutex_lock(&lport->lp_mutex);
 
-	FC_DEBUG_LPORT("Received a SCR response\n");
+	FC_LPORT_DBG(lport, "Received a SCR response\n");
 
 	if (lport->state != LPORT_ST_SCR) {
-		FC_DBG("Received a SCR response, but in state %s\n",
-		       fc_lport_state(lport));
+		FC_LPORT_DBG(lport, "Received a SCR response, but in state "
+			     "%s\n", fc_lport_state(lport));
 		if (IS_ERR(fp))
 			goto err;
 		goto out;
···
 {
 	struct fc_frame *fp;
 
-	FC_DEBUG_LPORT("Port (%6x) entered SCR state from %s state\n",
-		       fc_host_port_id(lport->host), fc_lport_state(lport));
+	FC_LPORT_DBG(lport, "Entered SCR state from %s state\n",
+		     fc_lport_state(lport));
 
 	fc_lport_state_enter(lport, LPORT_ST_SCR);
 
···
 	struct fc_ns_fts *lps;
 	int i;
 
-	FC_DEBUG_LPORT("Port (%6x) entered RFT_ID state from %s state\n",
-		       fc_host_port_id(lport->host), fc_lport_state(lport));
+	FC_LPORT_DBG(lport, "Entered RFT_ID state from %s state\n",
+		     fc_lport_state(lport));
 
 	fc_lport_state_enter(lport, LPORT_ST_RFT_ID);
 
···
 {
 	struct fc_frame *fp;
 
-	FC_DEBUG_LPORT("Port (%6x) entered RPN_ID state from %s state\n",
-		       fc_host_port_id(lport->host), fc_lport_state(lport));
+	FC_LPORT_DBG(lport, "Entered RPN_ID state from %s state\n",
+		     fc_lport_state(lport));
 
 	fc_lport_state_enter(lport, LPORT_ST_RPN_ID);
 
···
 	dp.ids.roles = FC_RPORT_ROLE_UNKNOWN;
 	dp.lp = lport;
 
-	FC_DEBUG_LPORT("Port (%6x) entered DNS state from %s state\n",
-		       fc_host_port_id(lport->host), fc_lport_state(lport));
+	FC_LPORT_DBG(lport, "Entered DNS state from %s state\n",
+		     fc_lport_state(lport));
 
 	fc_lport_state_enter(lport, LPORT_ST_DNS);
 
···
 
 	mutex_lock(&lport->lp_mutex);
 
-	FC_DEBUG_LPORT("Received a LOGO response\n");
+	FC_LPORT_DBG(lport, "Received a LOGO response\n");
 
 	if (lport->state != LPORT_ST_LOGO) {
-		FC_DBG("Received a LOGO response, but in state %s\n",
-		       fc_lport_state(lport));
+		FC_LPORT_DBG(lport, "Received a LOGO response, but in state "
+			     "%s\n", fc_lport_state(lport));
 		if (IS_ERR(fp))
 			goto err;
 		goto out;
···
 	struct fc_frame *fp;
 	struct fc_els_logo *logo;
 
-	FC_DEBUG_LPORT("Port (%6x) entered LOGO state from %s state\n",
-		       fc_host_port_id(lport->host), fc_lport_state(lport));
+	FC_LPORT_DBG(lport, "Entered LOGO state from %s state\n",
+		     fc_lport_state(lport));
 
 	fc_lport_state_enter(lport, LPORT_ST_LOGO);
 
···
 
 	mutex_lock(&lport->lp_mutex);
 
-	FC_DEBUG_LPORT("Received a FLOGI response\n");
+	FC_LPORT_DBG(lport, "Received a FLOGI response\n");
 
 	if (lport->state != LPORT_ST_FLOGI) {
-		FC_DBG("Received a FLOGI response, but in state %s\n",
-		       fc_lport_state(lport));
+		FC_LPORT_DBG(lport, "Received a FLOGI response, but in state "
+			     "%s\n", fc_lport_state(lport));
 		if (IS_ERR(fp))
 			goto err;
 		goto out;
···
 	did = ntoh24(fh->fh_d_id);
 	if (fc_frame_payload_op(fp) == ELS_LS_ACC && did != 0) {
 
-		FC_DEBUG_LPORT("Assigned fid %x\n", did);
+		printk(KERN_INFO "libfc: Assigned FID (%6x) in FLOGI response\n",
+		       did);
 		fc_host_port_id(lport->host) = did;
 
 		flp = fc_frame_payload_get(fp, sizeof(*flp));
···
 				if (e_d_tov > lport->e_d_tov)
 					lport->e_d_tov = e_d_tov;
 				lport->r_a_tov = 2 * e_d_tov;
-				FC_DBG("Point-to-Point mode\n");
+				printk(KERN_INFO "libfc: Port (%6x) entered "
+				       "point to point mode\n", did);
 				fc_lport_ptp_setup(lport, ntoh24(fh->fh_s_id),
 						   get_unaligned_be64(
 							   &flp->fl_wwpn),
···
 			}
 		}
 	} else {
-		FC_DBG("bad FLOGI response\n");
+		FC_LPORT_DBG(lport, "Bad FLOGI response\n");
 	}
 
 out:
···
 {
 	struct fc_frame *fp;
 
-	FC_DEBUG_LPORT("Processing FLOGI state\n");
+	FC_LPORT_DBG(lport, "Entered FLOGI state from %s state\n",
+		     fc_lport_state(lport));
 
 	fc_lport_state_enter(lport, LPORT_ST_FLOGI);
 

drivers/scsi/libfc/fc_rport.c

···
 #include <scsi/libfc.h>
 #include <scsi/fc_encode.h>
 
-static int fc_rport_debug;
-
-#define FC_DEBUG_RPORT(fmt...)			\
-	do {					\
-		if (fc_rport_debug)		\
-			FC_DBG(fmt);		\
-	} while (0)
-
 struct workqueue_struct *rport_event_queue;
 
 static void fc_rport_enter_plogi(struct fc_rport *);
···
 static void fc_rport_rogue_destroy(struct device *dev)
 {
 	struct fc_rport *rport = dev_to_rport(dev);
-	FC_DEBUG_RPORT("Destroying rogue rport (%6x)\n", rport->port_id);
+	FC_RPORT_DBG(rport, "Destroying rogue rport\n");
 	kfree(rport);
 }
 
···
 
 			fc_rport_state_enter(new_rport, RPORT_ST_READY);
 		} else {
-			FC_DBG("Failed to create the rport for port "
-			       "(%6x).\n", ids.port_id);
+			printk(KERN_WARNING "libfc: Failed to allocate "
+			       " memory for rport (%6x)\n", ids.port_id);
 			event = RPORT_EV_FAILED;
 		}
 		if (rport->port_id != FC_FID_DIR_SERV)
···
 
 	mutex_lock(&rdata->rp_mutex);
 
-	FC_DEBUG_RPORT("Login to port (%6x)\n", rport->port_id);
+	FC_RPORT_DBG(rport, "Login to port\n");
 
 	fc_rport_enter_plogi(rport);
 
···
 int fc_rport_logoff(struct fc_rport *rport)
 {
 	struct fc_rport_libfc_priv *rdata = rport->dd_data;
-	struct fc_lport *lport = rdata->local_port;
 
 	mutex_lock(&rdata->rp_mutex);
 
-	FC_DEBUG_RPORT("Remove port (%6x)\n", rport->port_id);
+	FC_RPORT_DBG(rport, "Remove port\n");
 
 	if (rdata->rp_state == RPORT_ST_NONE) {
-		FC_DEBUG_RPORT("(%6x): Port (%6x) in NONE state,"
-			       " not removing", fc_host_port_id(lport->host),
-			       rport->port_id);
+		FC_RPORT_DBG(rport, "Port in NONE state, not removing\n");
 		mutex_unlock(&rdata->rp_mutex);
 		goto out;
 	}
···
 
 	fc_rport_state_enter(rport, RPORT_ST_READY);
 
-	FC_DEBUG_RPORT("Port (%6x) is Ready\n", rport->port_id);
+	FC_RPORT_DBG(rport, "Port is Ready\n");
 
 	rdata->event = RPORT_EV_CREATED;
 	queue_work(rport_event_queue, &rdata->event_work);
···
 {
 	struct fc_rport_libfc_priv *rdata = rport->dd_data;
 
-	FC_DEBUG_RPORT("Error %ld in state %s, retries %d\n",
-		       PTR_ERR(fp), fc_rport_state(rport), rdata->retries);
+	FC_RPORT_DBG(rport, "Error %ld in state %s, retries %d\n",
+		     PTR_ERR(fp), fc_rport_state(rport), rdata->retries);
 
 	switch (rdata->rp_state) {
 	case RPORT_ST_PLOGI:
···
 		return fc_rport_error(rport, fp);
 
 	if (rdata->retries < rdata->local_port->max_rport_retry_count) {
-		FC_DEBUG_RPORT("Error %ld in state %s, retrying\n",
-			       PTR_ERR(fp), fc_rport_state(rport));
+		FC_RPORT_DBG(rport, "Error %ld in state %s, retrying\n",
+			     PTR_ERR(fp), fc_rport_state(rport));
 		rdata->retries++;
 		/* no additional delay on exchange timeouts */
 		if (PTR_ERR(fp) == -FC_EX_TIMEOUT)
···
 
 	mutex_lock(&rdata->rp_mutex);
 
-	FC_DEBUG_RPORT("Received a PLOGI response from port (%6x)\n",
-		       rport->port_id);
+	FC_RPORT_DBG(rport, "Received a PLOGI response\n");
 
 	if (rdata->rp_state != RPORT_ST_PLOGI) {
-		FC_DBG("Received a PLOGI response, but in state %s\n",
-		       fc_rport_state(rport));
+		FC_RPORT_DBG(rport, "Received a PLOGI response, but in state "
+			     "%s\n", fc_rport_state(rport));
 		if (IS_ERR(fp))
 			goto err;
 		goto out;
···
 	struct fc_lport *lport = rdata->local_port;
 	struct fc_frame *fp;
 
-	FC_DEBUG_RPORT("Port (%6x) entered PLOGI state from %s state\n",
-		       rport->port_id, fc_rport_state(rport));
+	FC_RPORT_DBG(rport, "Port entered PLOGI state from %s state\n",
+		     fc_rport_state(rport));
 
 	fc_rport_state_enter(rport, RPORT_ST_PLOGI);
 
···
 
 	mutex_lock(&rdata->rp_mutex);
 
-	FC_DEBUG_RPORT("Received a PRLI response from port (%6x)\n",
-		       rport->port_id);
+	FC_RPORT_DBG(rport, "Received a PRLI response\n");
 
 	if (rdata->rp_state != RPORT_ST_PRLI) {
-		FC_DBG("Received a PRLI response, but in state %s\n",
-		       fc_rport_state(rport));
+		FC_RPORT_DBG(rport, "Received a PRLI response, but in state "
+			     "%s\n", fc_rport_state(rport));
 		if (IS_ERR(fp))
 			goto err;
 		goto out;
···
 		fc_rport_enter_rtv(rport);
 
 	} else {
-		FC_DBG("Bad ELS response\n");
+		FC_RPORT_DBG(rport, "Bad ELS response for PRLI command\n");
 		rdata->event = RPORT_EV_FAILED;
 		fc_rport_state_enter(rport, RPORT_ST_NONE);
 		queue_work(rport_event_queue, &rdata->event_work);
···
 
 	mutex_lock(&rdata->rp_mutex);
 
-	FC_DEBUG_RPORT("Received a LOGO response from port (%6x)\n",
-		       rport->port_id);
+	FC_RPORT_DBG(rport, "Received a LOGO response\n");
 
 	if (rdata->rp_state != RPORT_ST_LOGO) {
-		FC_DEBUG_RPORT("Received a LOGO response, but in state %s\n",
-			       fc_rport_state(rport));
+		FC_RPORT_DBG(rport, "Received a LOGO response, but in state "
+			     "%s\n", fc_rport_state(rport));
 		if (IS_ERR(fp))
 			goto err;
 		goto out;
···
 	if (op == ELS_LS_ACC) {
 		fc_rport_enter_rtv(rport);
 	} else {
-		FC_DBG("Bad ELS response\n");
+		FC_RPORT_DBG(rport, "Bad ELS response for LOGO command\n");
 		rdata->event = RPORT_EV_LOGO;
 		fc_rport_state_enter(rport, RPORT_ST_NONE);
 		queue_work(rport_event_queue, &rdata->event_work);
···
 	} *pp;
 	struct fc_frame *fp;
 
-	FC_DEBUG_RPORT("Port (%6x) entered PRLI state from %s state\n",
-		       rport->port_id, fc_rport_state(rport));
+	FC_RPORT_DBG(rport, "Port entered PRLI state from %s state\n",
+		     fc_rport_state(rport));
 
 	fc_rport_state_enter(rport, RPORT_ST_PRLI);
 
···
 
 	mutex_lock(&rdata->rp_mutex);
 
-	FC_DEBUG_RPORT("Received a RTV response from port (%6x)\n",
-		       rport->port_id);
+	FC_RPORT_DBG(rport, "Received a RTV response\n");
 
 	if (rdata->rp_state != RPORT_ST_RTV) {
-		FC_DBG("Received a RTV response, but in state %s\n",
-		       fc_rport_state(rport));
+		FC_RPORT_DBG(rport, "Received a RTV response, but in state "
+			     "%s\n", fc_rport_state(rport));
 		if (IS_ERR(fp))
 			goto err;
 		goto out;
···
 	struct fc_rport_libfc_priv *rdata = rport->dd_data;
 	struct fc_lport *lport = rdata->local_port;
 
-	FC_DEBUG_RPORT("Port (%6x) entered RTV state from %s state\n",
-		       rport->port_id, fc_rport_state(rport));
+	FC_RPORT_DBG(rport, "Port entered RTV state from %s state\n",
+		     fc_rport_state(rport));
 
 	fc_rport_state_enter(rport, RPORT_ST_RTV);
 
···
 	struct fc_lport *lport = rdata->local_port;
 	struct fc_frame *fp;
 
-	FC_DEBUG_RPORT("Port (%6x) entered LOGO state from %s state\n",
-		       rport->port_id, fc_rport_state(rport));
+	FC_RPORT_DBG(rport, "Port entered LOGO state from %s state\n",
+		     fc_rport_state(rport));
 
 	fc_rport_state_enter(rport, RPORT_ST_LOGO);
 
···
 
 	fh = fc_frame_header_get(fp);
 
-	FC_DEBUG_RPORT("Received PLOGI request from port (%6x) "
-		       "while in state %s\n", ntoh24(fh->fh_s_id),
-		       fc_rport_state(rport));
+	FC_RPORT_DBG(rport, "Received PLOGI request while in state %s\n",
+		     fc_rport_state(rport));
 
 	sid = ntoh24(fh->fh_s_id);
 	pl = fc_frame_payload_get(fp, sizeof(*pl));
 	if (!pl) {
-		FC_DBG("incoming PLOGI from %x too short\n", sid);
+		FC_RPORT_DBG(rport, "Received PLOGI too short\n");
 		WARN_ON(1);
 		/* XXX TBD: send reject? */
 		fc_frame_free(fp);
···
 	 */
 	switch (rdata->rp_state) {
 	case RPORT_ST_INIT:
-		FC_DEBUG_RPORT("incoming PLOGI from %6x wwpn %llx state INIT "
-			       "- reject\n", sid, (unsigned long long)wwpn);
+		FC_RPORT_DBG(rport, "Received PLOGI, wwpn %llx state INIT "
+			     "- reject\n", (unsigned long long)wwpn);
 		reject = ELS_RJT_UNSUP;
 		break;
 	case RPORT_ST_PLOGI:
-		FC_DEBUG_RPORT("incoming PLOGI from %x in PLOGI state %d\n",
-			       sid, rdata->rp_state);
+		FC_RPORT_DBG(rport, "Received PLOGI in PLOGI state %d\n",
+			     rdata->rp_state);
 		if (wwpn < lport->wwpn)
 			reject = ELS_RJT_INPROG;
 		break;
 	case RPORT_ST_PRLI:
 	case RPORT_ST_READY:
-		FC_DEBUG_RPORT("incoming PLOGI from %x in logged-in state %d "
-			       "- ignored for now\n", sid, rdata->rp_state);
+		FC_RPORT_DBG(rport, "Received PLOGI in logged-in state %d "
+			     "- ignored for now\n", rdata->rp_state);
 		/* XXX TBD - should reset */
 		break;
 	case RPORT_ST_NONE:
 	default:
-		FC_DEBUG_RPORT("incoming PLOGI from %x in unexpected "
-			       "state %d\n", sid, rdata->rp_state);
+		FC_RPORT_DBG(rport, "Received PLOGI in unexpected "
+			     "state %d\n", rdata->rp_state);
 		fc_frame_free(fp);
 		return;
 		break;
···
 
 	fh = fc_frame_header_get(rx_fp);
 
-	FC_DEBUG_RPORT("Received PRLI request from port (%6x) "
-		       "while in state %s\n", ntoh24(fh->fh_s_id),
-		       fc_rport_state(rport));
+	FC_RPORT_DBG(rport, "Received PRLI request while in state %s\n",
+		     fc_rport_state(rport));
 
 	switch (rdata->rp_state) {
 	case RPORT_ST_PRLI:
···
 
 	fh = fc_frame_header_get(fp);
 
-	FC_DEBUG_RPORT("Received PRLO request from port (%6x) "
-		       "while in state %s\n", ntoh24(fh->fh_s_id),
-		       fc_rport_state(rport));
+	FC_RPORT_DBG(rport, "Received PRLO request while in state %s\n",
+		     fc_rport_state(rport));
 
 	if (rdata->rp_state == RPORT_ST_NONE) {
 		fc_frame_free(fp);
···
 
 	fh = fc_frame_header_get(fp);
 
-	FC_DEBUG_RPORT("Received LOGO request from port (%6x) "
-		       "while in state %s\n", ntoh24(fh->fh_s_id),
-		       fc_rport_state(rport));
+	FC_RPORT_DBG(rport, "Received LOGO request while in state %s\n",
+		     fc_rport_state(rport));
 
 	if (rdata->rp_state == RPORT_ST_NONE) {
 		fc_frame_free(fp);
···
 {
 	flush_workqueue(rport_event_queue);
 }
-
 
 int fc_rport_init(struct fc_lport *lport)
 {

drivers/scsi/libiscsi.c

···
 #include <scsi/scsi_transport_iscsi.h>
 #include <scsi/libiscsi.h>
 
-static int iscsi_dbg_lib;
-module_param_named(debug_libiscsi, iscsi_dbg_lib, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug_libiscsi, "Turn on debugging for libiscsi module. "
-		 "Set to 1 to turn on, and zero to turn off. Default "
-		 "is off.");
+static int iscsi_dbg_lib_conn;
+module_param_named(debug_libiscsi_conn, iscsi_dbg_lib_conn, int,
+		   S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug_libiscsi_conn,
+		 "Turn on debugging for connections in libiscsi module. "
+		 "Set to 1 to turn on, and zero to turn off. Default is off.");
+
+static int iscsi_dbg_lib_session;
+module_param_named(debug_libiscsi_session, iscsi_dbg_lib_session, int,
+		   S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug_libiscsi_session,
+		 "Turn on debugging for sessions in libiscsi module. "
+		 "Set to 1 to turn on, and zero to turn off. Default is off.");
+
+static int iscsi_dbg_lib_eh;
+module_param_named(debug_libiscsi_eh, iscsi_dbg_lib_eh, int,
+		   S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug_libiscsi_eh,
+		 "Turn on debugging for error handling in libiscsi module. "
+		 "Set to 1 to turn on, and zero to turn off. Default is off.");
 
 #define ISCSI_DBG_CONN(_conn, dbg_fmt, arg...)			\
 	do {							\
-		if (iscsi_dbg_lib)				\
+		if (iscsi_dbg_lib_conn)				\
 			iscsi_conn_printk(KERN_INFO, _conn,	\
 					     "%s " dbg_fmt,	\
 					     __func__, ##arg);	\
···
 
 #define ISCSI_DBG_SESSION(_session, dbg_fmt, arg...)			\
 	do {								\
-		if (iscsi_dbg_lib)					\
+		if (iscsi_dbg_lib_session)				\
+			iscsi_session_printk(KERN_INFO, _session,	\
+					     "%s " dbg_fmt,		\
+					     __func__, ##arg);		\
+	} while (0);
+
+#define ISCSI_DBG_EH(_session, dbg_fmt, arg...)				\
+	do {								\
+		if (iscsi_dbg_lib_eh)					\
 			iscsi_session_printk(KERN_INFO, _session,	\
 					     "%s " dbg_fmt,		\
 					     __func__, ##arg);		\
···
 		task = iscsi_itt_to_ctask(conn, hdr->itt);
 		if (!task)
 			return ISCSI_ERR_BAD_ITT;
+		task->last_xfer = jiffies;
 		break;
 	case ISCSI_OP_R2T:
 		/*
···
 	spin_unlock_bh(&conn->session->lock);
 	rc = conn->session->tt->xmit_task(task);
 	spin_lock_bh(&conn->session->lock);
-	__iscsi_put_task(task);
-	if (!rc)
+	if (!rc) {
 		/* done with this task */
+		task->last_xfer = jiffies;
 		conn->task = NULL;
+	}
+	__iscsi_put_task(task);
 	return rc;
 }
 
···
 	task->state = ISCSI_TASK_PENDING;
 	task->conn = conn;
 	task->sc = sc;
+	task->have_checked_conn = false;
+	task->last_timeout = jiffies;
+	task->last_xfer = jiffies;
 	INIT_LIST_HEAD(&task->running);
 	return task;
 }
···
 	spin_lock_bh(&session->lock);
 	if (session->state == ISCSI_STATE_TERMINATE) {
 failed:
-		iscsi_session_printk(KERN_INFO, session,
-				     "failing target reset: Could not log "
-				     "back into target [age %d]\n",
-				     session->age);
+		ISCSI_DBG_EH(session,
+			     "failing target reset: Could not log back into "
+			     "target [age %d]\n",
+			     session->age);
 		spin_unlock_bh(&session->lock);
 		mutex_unlock(&session->eh_mutex);
 		return FAILED;
···
 	 */
 	iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
 
-	ISCSI_DBG_SESSION(session, "wait for relogin\n");
+	ISCSI_DBG_EH(session, "wait for relogin\n");
 	wait_event_interruptible(conn->ehwait,
 				 session->state == ISCSI_STATE_TERMINATE ||
 				 session->state == ISCSI_STATE_LOGGED_IN ||
···
 
 	mutex_lock(&session->eh_mutex);
 	spin_lock_bh(&session->lock);
-	if (session->state == ISCSI_STATE_LOGGED_IN)
-		iscsi_session_printk(KERN_INFO, session,
-				     "target reset succeeded\n");
-	else
+	if (session->state == ISCSI_STATE_LOGGED_IN) {
+		ISCSI_DBG_EH(session,
+			     "target reset succeeded\n");
+	} else
 		goto failed;
 	spin_unlock_bh(&session->lock);
 	mutex_unlock(&session->eh_mutex);
···
 	spin_lock(&session->lock);
 	if (conn->tmf_state == TMF_QUEUED) {
 		conn->tmf_state = TMF_TIMEDOUT;
-		ISCSI_DBG_SESSION(session, "tmf timedout\n");
+		ISCSI_DBG_EH(session, "tmf timedout\n");
 		/* unblock eh_abort() */
 		wake_up(&conn->ehwait);
 	}
···
 		spin_unlock_bh(&session->lock);
 		iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
 		spin_lock_bh(&session->lock);
-		ISCSI_DBG_SESSION(session, "tmf exec failure\n");
+		ISCSI_DBG_EH(session, "tmf exec failure\n");
 		return -EPERM;
 	}
 	conn->tmfcmd_pdus_cnt++;
···
 	conn->tmf_timer.function = iscsi_tmf_timedout;
 	conn->tmf_timer.data = (unsigned long)conn;
 	add_timer(&conn->tmf_timer);
-	ISCSI_DBG_SESSION(session, "tmf set timeout\n");
+	ISCSI_DBG_EH(session, "tmf set timeout\n");
 
 	spin_unlock_bh(&session->lock);
 	mutex_unlock(&session->eh_mutex);
···
 		return 0;
 }
 
-static enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *scmd)
+static enum blk_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *sc)
 {
+	enum blk_eh_timer_return rc = BLK_EH_NOT_HANDLED;
+	struct iscsi_task *task = NULL;
 	struct iscsi_cls_session *cls_session;
 	struct iscsi_session *session;
 	struct iscsi_conn *conn;
-	enum blk_eh_timer_return rc = BLK_EH_NOT_HANDLED;
 
-	cls_session = starget_to_session(scsi_target(scmd->device));
+	cls_session = starget_to_session(scsi_target(sc->device));
 	session = cls_session->dd_data;
 
-	ISCSI_DBG_SESSION(session, "scsi cmd %p timedout\n", scmd);
+	ISCSI_DBG_EH(session, "scsi cmd %p timedout\n", sc);
 
 	spin_lock(&session->lock);
 	if (session->state != ISCSI_STATE_LOGGED_IN) {
···
 		goto done;
 	}
 
+	task = (struct iscsi_task *)sc->SCp.ptr;
+	if (!task)
+		goto done;
+	/*
+	 * If we have sent (at least queued to the network layer) a pdu or
+	 * recvd one for the task since the last timeout ask for
+	 * more time. If on the next timeout we have not made progress
+	 * we can check if it is the task or connection when we send the
+	 * nop as a ping.
+	 */
+	if (time_after_eq(task->last_xfer, task->last_timeout)) {
+		ISCSI_DBG_EH(session, "Command making progress. Asking "
+			     "scsi-ml for more time to complete. "
+			     "Last data recv at %lu. Last timeout was at "
+			     "%lu\n.", task->last_xfer, task->last_timeout);
+		task->have_checked_conn = false;
+		rc = BLK_EH_RESET_TIMER;
+		goto done;
+	}
+
 	if (!conn->recv_timeout && !conn->ping_timeout)
 		goto done;
 	/*
···
 		rc = BLK_EH_RESET_TIMER;
 		goto done;
 	}
+
+	/* Assumes nop timeout is shorter than scsi cmd timeout */
+	if (task->have_checked_conn)
+		goto done;
+
 	/*
-	 * if we are about to check the transport then give the command
-	 * more time
+	 * Checking the transport already or nop from a cmd timeout still
+	 * running
 	 */
-	if (time_before_eq(conn->last_recv + (conn->recv_timeout * HZ),
-			   jiffies)) {
+	if (conn->ping_task) {
+		task->have_checked_conn = true;
 		rc = BLK_EH_RESET_TIMER;
 		goto done;
 	}
 
-	/* if in the middle of checking the transport then give us more time */
-	if (conn->ping_task)
-		rc = BLK_EH_RESET_TIMER;
+	/* Make sure there is a transport check done */
+	iscsi_send_nopout(conn, NULL);
+	task->have_checked_conn = true;
+	rc = BLK_EH_RESET_TIMER;
+
 done:
+	if (task)
+		task->last_timeout = jiffies;
 	spin_unlock(&session->lock);
-	ISCSI_DBG_SESSION(session, "return %s\n", rc == BLK_EH_RESET_TIMER ?
-			  "timer reset" : "nh");
+	ISCSI_DBG_EH(session, "return %s\n", rc == BLK_EH_RESET_TIMER ?
+		     "timer reset" : "nh");
 	return rc;
 }
 
···
 	cls_session = starget_to_session(scsi_target(sc->device));
 	session = cls_session->dd_data;
 
-	ISCSI_DBG_SESSION(session, "aborting sc %p\n", sc);
+	ISCSI_DBG_EH(session, "aborting sc %p\n", sc);
 
 	mutex_lock(&session->eh_mutex);
 	spin_lock_bh(&session->lock);
···
 	 * got the command.
 	 */
 	if (!sc->SCp.ptr) {
-		ISCSI_DBG_SESSION(session, "sc never reached iscsi layer or "
-				  "it completed.\n");
+		ISCSI_DBG_EH(session, "sc never reached iscsi layer or "
+				      "it completed.\n");
 		spin_unlock_bh(&session->lock);
 		mutex_unlock(&session->eh_mutex);
 		return SUCCESS;
···
 	    sc->SCp.phase != session->age) {
 		spin_unlock_bh(&session->lock);
 		mutex_unlock(&session->eh_mutex);
-		ISCSI_DBG_SESSION(session, "failing abort due to dropped "
+		ISCSI_DBG_EH(session, "failing abort due to dropped "
 				  "session.\n");
 		return FAILED;
 	}
···
 	age = session->age;
 
 	task = (struct iscsi_task *)sc->SCp.ptr;
-	ISCSI_DBG_SESSION(session, "aborting [sc %p itt 0x%x]\n",
-			  sc, task->itt);
+	ISCSI_DBG_EH(session, "aborting [sc %p itt 0x%x]\n",
+		     sc, task->itt);
 
 	/* task completed before time out */
 	if (!task->sc) {
-		ISCSI_DBG_SESSION(session, "sc completed while abort in "
-				  "progress\n");
+		ISCSI_DBG_EH(session, "sc completed while abort in progress\n");
 		goto success;
 	}
 
···
 		if (!sc->SCp.ptr) {
 			conn->tmf_state = TMF_INITIAL;
 			/* task completed before tmf abort response */
-			ISCSI_DBG_SESSION(session, "sc completed while abort "
-					  "in progress\n");
+			ISCSI_DBG_EH(session, "sc completed while abort	in "
+					      "progress\n");
 			goto success;
 		}
 		/* fall through */
···
 success:
 	spin_unlock_bh(&session->lock);
 success_unlocked:
-	ISCSI_DBG_SESSION(session, "abort success [sc %p itt 0x%x]\n",
-			  sc, task->itt);
+	ISCSI_DBG_EH(session, "abort success [sc %p itt 0x%x]\n",
+		     sc, task->itt);
 	mutex_unlock(&session->eh_mutex);
 	return SUCCESS;
 
 failed:
 	spin_unlock_bh(&session->lock);
 failed_unlocked:
-	ISCSI_DBG_SESSION(session, "abort failed [sc %p itt 0x%x]\n", sc,
-			  task ? task->itt : 0);
+	ISCSI_DBG_EH(session, "abort failed [sc %p itt 0x%x]\n", sc,
+		     task ? task->itt : 0);
 	mutex_unlock(&session->eh_mutex);
 	return FAILED;
 }
···
 	cls_session = starget_to_session(scsi_target(sc->device));
 	session = cls_session->dd_data;
 
-	ISCSI_DBG_SESSION(session, "LU Reset [sc %p lun %u]\n",
-			  sc, sc->device->lun);
+	ISCSI_DBG_EH(session, "LU Reset [sc %p lun %u]\n", sc, sc->device->lun);
 
 	mutex_lock(&session->eh_mutex);
 	spin_lock_bh(&session->lock);
···
 unlock:
 	spin_unlock_bh(&session->lock);
 done:
-	ISCSI_DBG_SESSION(session, "dev reset result = %s\n",
-			 rc == SUCCESS ? "SUCCESS" : "FAILED");
+	ISCSI_DBG_EH(session, "dev reset result = %s\n",
+		     rc == SUCCESS ? "SUCCESS" : "FAILED");
 	mutex_unlock(&session->eh_mutex);
 	return rc;
 }

drivers/scsi/libiscsi_tcp.c

···
 				     "offset=%d, datalen=%d)\n",
 				      tcp_task->data_offset,
 				      tcp_conn->in.datalen);
+			task->last_xfer = jiffies;
 			rc = iscsi_segment_seek_sg(&tcp_conn->in.segment,
 						   sdb->table.sgl,
 						   sdb->table.nents,
···
 			rc = ISCSI_ERR_BAD_ITT;
 		else if (ahslen)
 			rc = ISCSI_ERR_AHSLEN;
-		else if (task->sc->sc_data_direction == DMA_TO_DEVICE)
+		else if (task->sc->sc_data_direction == DMA_TO_DEVICE) {
+			task->last_xfer = jiffies;
 			rc = iscsi_tcp_r2t_rsp(conn, task);
-		else
+		} else
 			rc = ISCSI_ERR_PROTO;
 		spin_unlock(&conn->session->lock);
 		break;

drivers/scsi/qla2xxx/qla_dbg.c

···
 
 static int
 qla2xxx_dump_ram(struct qla_hw_data *ha, uint32_t addr, uint16_t *ram,
-    uint16_t ram_words, void **nxt)
+    uint32_t ram_words, void **nxt)
 {
 	int rval;
 	uint32_t cnt, stat, timer, words, idx;

drivers/scsi/qla2xxx/qla_init.c

···
 	static char *link_speeds[] = { "1", "2", "?", "4", "8", "10" };
 	char *link_speed;
 	int rval;
-	uint16_t mb[6];
+	uint16_t mb[4];
 	struct qla_hw_data *ha = vha->hw;
 
 	if (!IS_IIDMA_CAPABLE(ha))

drivers/scsi/qla2xxx/qla_mbx.c

···
 
 	mcp->mb[0] = MBC_GET_FIRMWARE_STATE;
 	mcp->out_mb = MBX_0;
-	mcp->in_mb = MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
+	if (IS_FWI2_CAPABLE(vha->hw))
+		mcp->in_mb = MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
+	else
+		mcp->in_mb = MBX_1|MBX_0;
 	mcp->tov = MBX_TOV_SECONDS;
 	mcp->flags = 0;
 	rval = qla2x00_mailbox_command(vha, mcp);
 
 	/* Return firmware states. */
 	states[0] = mcp->mb[1];
-	states[1] = mcp->mb[2];
-	states[2] = mcp->mb[3];
-	states[3] = mcp->mb[4];
-	states[4] = mcp->mb[5];
+	if (IS_FWI2_CAPABLE(vha->hw)) {
+		states[1] = mcp->mb[2];
+		states[2] = mcp->mb[3];
+		states[3] = mcp->mb[4];
+		states[4] = mcp->mb[5];
+	}
 
 	if (rval != QLA_SUCCESS) {
 		/*EMPTY*/
···
 	mcp->mb[0] = MBC_PORT_PARAMS;
 	mcp->mb[1] = loop_id;
 	mcp->mb[2] = BIT_0;
-	mcp->mb[3] = port_speed & (BIT_2|BIT_1|BIT_0);
-	mcp->mb[4] = mcp->mb[5] = 0;
-	mcp->out_mb = MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
-	mcp->in_mb = MBX_5|MBX_4|MBX_3|MBX_1|MBX_0;
+	if (IS_QLA81XX(vha->hw))
+		mcp->mb[3] = port_speed & (BIT_5|BIT_4|BIT_3|BIT_2|BIT_1|BIT_0);
+	else
+		mcp->mb[3] = port_speed & (BIT_2|BIT_1|BIT_0);
+	mcp->mb[9] = vha->vp_idx;
+	mcp->out_mb = MBX_9|MBX_3|MBX_2|MBX_1|MBX_0;
+	mcp->in_mb = MBX_3|MBX_1|MBX_0;
 	mcp->tov = MBX_TOV_SECONDS;
 	mcp->flags = 0;
 	rval = qla2x00_mailbox_command(vha, mcp);
···
 		mb[0] = mcp->mb[0];
 		mb[1] = mcp->mb[1];
 		mb[3] = mcp->mb[3];
-		mb[4] = mcp->mb[4];
-		mb[5] = mcp->mb[5];
 	}
 
 	if (rval != QLA_SUCCESS) {

drivers/scsi/qla2xxx/qla_os.c

···
 		/* queue 0 uses two msix vectors */
 		if (ql2xmultique_tag) {
 			cpus = num_online_cpus();
-			ha->max_rsp_queues = (ha->msix_count - 1 - cpus) ?
+			ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
 				(cpus + 1) : (ha->msix_count - 1);
 			ha->max_req_queues = 2;
 		} else if (ql2xmaxqueues > 1) {

drivers/scsi/qla2xxx/qla_version.h

···
 /*
  * Driver version
  */
-#define QLA2XXX_VERSION      "8.03.01-k3"
+#define QLA2XXX_VERSION      "8.03.01-k4"
 
 #define QLA_DRIVER_MAJOR_VER	8
 #define QLA_DRIVER_MINOR_VER	3

drivers/scsi/scsi_debug.c

···
 #define DEF_DIF 0
 #define DEF_GUARD 0
 #define DEF_ATO 1
+#define DEF_PHYSBLK_EXP 0
+#define DEF_LOWEST_ALIGNED 0
 
 /* bit mask values for scsi_debug_opts */
 #define SCSI_DEBUG_OPT_NOISE   1
···
 static int scsi_debug_dif = DEF_DIF;
 static int scsi_debug_guard = DEF_GUARD;
 static int scsi_debug_ato = DEF_ATO;
+static int scsi_debug_physblk_exp = DEF_PHYSBLK_EXP;
+static int scsi_debug_lowest_aligned = DEF_LOWEST_ALIGNED;
 
 static int scsi_debug_cmnd_count = 0;
 
···
 
 static int inquiry_evpd_b0(unsigned char * arr)
 {
+	unsigned int gran;
+
 	memcpy(arr, vpdb0_data, sizeof(vpdb0_data));
+	gran = 1 << scsi_debug_physblk_exp;
+	arr[2] = (gran >> 8) & 0xff;
+	arr[3] = gran & 0xff;
 	if (sdebug_store_sectors > 0x400) {
 		arr[4] = (sdebug_store_sectors >> 24) & 0xff;
 		arr[5] = (sdebug_store_sectors >> 16) & 0xff;
···
 	arr[9] = (scsi_debug_sector_size >> 16) & 0xff;
 	arr[10] = (scsi_debug_sector_size >> 8) & 0xff;
 	arr[11] = scsi_debug_sector_size & 0xff;
+	arr[13] = scsi_debug_physblk_exp & 0xf;
+	arr[14] = (scsi_debug_lowest_aligned >> 8) & 0x3f;
+	arr[15] = scsi_debug_lowest_aligned & 0xff;
 
 	if (scsi_debug_dif) {
 		arr[12] = (scsi_debug_dif - 1) << 1; /* P_TYPE */
···
 module_param_named(dif, scsi_debug_dif, int, S_IRUGO);
 module_param_named(guard, scsi_debug_guard, int, S_IRUGO);
 module_param_named(ato, scsi_debug_ato, int, S_IRUGO);
+module_param_named(physblk_exp, scsi_debug_physblk_exp, int, S_IRUGO);
+module_param_named(lowest_aligned, scsi_debug_lowest_aligned, int, S_IRUGO);
 
 MODULE_AUTHOR("Eric Youngdale + Douglas Gilbert");
 MODULE_DESCRIPTION("SCSI debug adapter driver");
···
 MODULE_PARM_DESC(scsi_level, "SCSI level to simulate(def=5[SPC-3])");
 MODULE_PARM_DESC(virtual_gb, "virtual gigabyte size (def=0 -> use dev_size_mb)");
 MODULE_PARM_DESC(vpd_use_hostno, "0 -> dev ids ignore hostno (def=1 -> unique dev ids)");
-MODULE_PARM_DESC(sector_size, "hardware sector size in bytes (def=512)");
+MODULE_PARM_DESC(sector_size, "logical block size in bytes (def=512)");
+MODULE_PARM_DESC(physblk_exp, "physical block exponent (def=0)");
+MODULE_PARM_DESC(lowest_aligned, "lowest aligned lba (def=0)");
 MODULE_PARM_DESC(dix, "data integrity extensions mask (def=0)");
 MODULE_PARM_DESC(dif, "data integrity field type: 0-3 (def=0)");
 MODULE_PARM_DESC(guard, "protection checksum: 0=crc, 1=ip (def=0)");
···
 
 	if (scsi_debug_ato > 1) {
 		printk(KERN_ERR "scsi_debug_init: ato must be 0 or 1\n");
+		return -EINVAL;
+	}
+
+	if (scsi_debug_physblk_exp > 15) {
+		printk(KERN_ERR "scsi_debug_init: invalid physblk_exp %u\n",
+		       scsi_debug_physblk_exp);
+		return -EINVAL;
+	}
+
+	if (scsi_debug_lowest_aligned > 0x3fff) {
+		printk(KERN_ERR "scsi_debug_init: lowest_aligned too big: %u\n",
+		       scsi_debug_lowest_aligned);
 		return -EINVAL;
 	}
 

drivers/scsi/scsi_devinfo.c

···
 	unsigned compatible; /* for use with scsi_static_device_list entries */
 };
 
+struct scsi_dev_info_list_table {
+	struct list_head node;	/* our node for being on the master list */
+	struct list_head scsi_dev_info_list; /* head of dev info list */
+	const char *name;	/* name of list for /proc (NULL for global) */
+	int key;		/* unique numeric identifier */
+};
+
 
 static const char spaces[] = "                "; /* 16 of them */
 static unsigned scsi_default_dev_flags;
···
 	{ NULL, NULL, NULL, 0 },
 };
 
+static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key)
+{
+	struct scsi_dev_info_list_table *devinfo_table;
+	int found = 0;
+
+	list_for_each_entry(devinfo_table, &scsi_dev_info_list, node)
+		if (devinfo_table->key == key) {
+			found = 1;
+			break;
+		}
+	if (!found)
+		return ERR_PTR(-EINVAL);
+
+	return devinfo_table;
+}
+
 /*
  * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
  * devinfo vendor and model strings.
···
 static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
 			    char *strflags, int flags)
 {
+	return scsi_dev_info_list_add_keyed(compatible, vendor, model,
+					    strflags, flags,
+					    SCSI_DEVINFO_GLOBAL);
+}
+
+/**
+ * scsi_dev_info_list_add_keyed - add one dev_info list entry.
+ * @compatible: if true, null terminate short strings.  Otherwise space pad.
+ * @vendor:	vendor string
+ * @model:	model (product) string
+ * @strflags:	integer string
+ * @flags:	if strflags NULL, use this flag value
+ * @key:	specify list to use
+ *
+ * Description:
+ * 	Create and add one dev_info entry for @vendor, @model,
+ * 	@strflags or @flag in list specified by @key. If @compatible,
+ * 	add to the tail of the list, do not space pad, and set
+ * 	devinfo->compatible. The scsi_static_device_list entries are
+ * 	added with @compatible 1 and @clfags NULL.
+ *
+ * Returns: 0 OK, -error on failure.
+ **/
+int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model,
+				 char *strflags, int flags, int key)
+{
 	struct scsi_dev_info_list *devinfo;
+	struct scsi_dev_info_list_table *devinfo_table =
+		scsi_devinfo_lookup_by_key(key);
+
+	if (IS_ERR(devinfo_table))
+		return PTR_ERR(devinfo_table);
 
 	devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
 	if (!devinfo) {
···
 	devinfo->compatible = compatible;
 
 	if (compatible)
-		list_add_tail(&devinfo->dev_info_list, &scsi_dev_info_list);
+		list_add_tail(&devinfo->dev_info_list,
+			      &devinfo_table->scsi_dev_info_list);
 	else
-		list_add(&devinfo->dev_info_list, &scsi_dev_info_list);
+		list_add(&devinfo->dev_info_list,
+			 &devinfo_table->scsi_dev_info_list);
 
 	return 0;
 }
+EXPORT_SYMBOL(scsi_dev_info_list_add_keyed);
 
 /**
  * scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list.
···
  * @model:	model name
  *
  * Description:
- *     Search the scsi_dev_info_list for an entry matching @vendor and
- *     @model, if found, return the matching flags value, else return
- *     the host or global default settings.  Called during scan time.
+ *     Search the global scsi_dev_info_list (specified by list zero)
+ *     for an entry matching @vendor and @model, if found, return the
+ *     matching flags value, else return the host or global default
+ *     settings.  Called during scan time.
  **/
 int scsi_get_device_flags(struct scsi_device *sdev,
 			  const unsigned char *vendor,
 			  const unsigned char *model)
 {
+	return scsi_get_device_flags_keyed(sdev, vendor, model,
+					   SCSI_DEVINFO_GLOBAL);
+}
+
+
+/**
+ * get_device_flags_keyed - get device specific flags from the dynamic device list.
+ * @sdev:       &scsi_device to get flags for
+ * @vendor:	vendor name
+ * @model:	model name
+ * @key:	list to look up
+ *
+ * Description:
+ *     Search the scsi_dev_info_list specified by @key for an entry
+ *     matching @vendor and @model, if found, return the matching
+ *     flags value, else return the host or global default settings.
+ *     Called during scan time.
+ **/
+int scsi_get_device_flags_keyed(struct scsi_device *sdev,
+				const unsigned char *vendor,
+				const unsigned char *model,
+				int key)
+{
 	struct scsi_dev_info_list *devinfo;
-	unsigned int bflags;
+	struct scsi_dev_info_list_table *devinfo_table;
 
-	bflags = sdev->sdev_bflags;
-	if (!bflags)
-		bflags = scsi_default_dev_flags;
+	devinfo_table = scsi_devinfo_lookup_by_key(key);
 
-	list_for_each_entry(devinfo, &scsi_dev_info_list, dev_info_list) {
+	if (IS_ERR(devinfo_table))
+		return PTR_ERR(devinfo_table);
+
+	list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
+			    dev_info_list) {
 		if (devinfo->compatible) {
 			/*
 			 * Behave like the older version of get_device_flags.
···
 				return devinfo->flags;
 		}
 	}
-	return bflags;
+	/* nothing found, return nothing */
+	if (key != SCSI_DEVINFO_GLOBAL)
+		return 0;
+
+	/* except for the global list, where we have an exception */
+	if (sdev->sdev_bflags)
+		return sdev->sdev_bflags;
+
+	return scsi_default_dev_flags;
 }
+EXPORT_SYMBOL(scsi_get_device_flags_keyed);
 
 #ifdef CONFIG_SCSI_PROC_FS
+struct double_list {
+	struct list_head *top;
+	struct list_head *bottom;
+};
+
 static int devinfo_seq_show(struct seq_file *m, void *v)
 {
+	struct double_list *dl = v;
+	struct scsi_dev_info_list_table *devinfo_table =
+		list_entry(dl->top, struct scsi_dev_info_list_table, node);
 	struct scsi_dev_info_list *devinfo =
-		list_entry(v, struct scsi_dev_info_list, dev_info_list);
+		list_entry(dl->bottom, struct scsi_dev_info_list,
+			   dev_info_list);
+
+	if (devinfo_table->scsi_dev_info_list.next == dl->bottom &&
+	    devinfo_table->name)
+		seq_printf(m, "[%s]:\n", devinfo_table->name);
 
 	seq_printf(m, "'%.8s' '%.16s' 0x%x\n",
-			devinfo->vendor, devinfo->model, devinfo->flags);
+		   devinfo->vendor, devinfo->model, devinfo->flags);
 	return 0;
 }
 
-static void * devinfo_seq_start(struct seq_file *m, loff_t *pos)
+static void *devinfo_seq_start(struct seq_file *m, loff_t *ppos)
 {
-	return seq_list_start(&scsi_dev_info_list, *pos);
+	struct double_list *dl = kmalloc(sizeof(*dl), GFP_KERNEL);
+	loff_t pos = *ppos;
+
+	if (!dl)
+		return NULL;
+
+	list_for_each(dl->top, &scsi_dev_info_list) {
+		struct scsi_dev_info_list_table *devinfo_table =
+			list_entry(dl->top, struct scsi_dev_info_list_table,
+				   node);
+		list_for_each(dl->bottom, &devinfo_table->scsi_dev_info_list)
+			if (pos-- == 0)
+				return dl;
+	}
+
+	kfree(dl);
+	return NULL;
 }
 
-static void * devinfo_seq_next(struct seq_file *m, void *v, loff_t *pos)
+static void *devinfo_seq_next(struct seq_file *m, void *v, loff_t *ppos)
 {
-	return seq_list_next(v, &scsi_dev_info_list, pos);
+	struct double_list *dl = v;
+	struct scsi_dev_info_list_table *devinfo_table =
+		list_entry(dl->top, struct scsi_dev_info_list_table, node);
+
+	++*ppos;
+	dl->bottom = dl->bottom->next;
+	while (&devinfo_table->scsi_dev_info_list == dl->bottom) {
+		dl->top = dl->top->next;
+		if (dl->top == &scsi_dev_info_list) {
+			kfree(dl);
+			return NULL;
+		}
+		devinfo_table = list_entry(dl->top,
+					   struct scsi_dev_info_list_table,
+					   node);
+		dl->bottom = devinfo_table->scsi_dev_info_list.next;
+	}
+
+	return dl;
 }
 
 static void devinfo_seq_stop(struct seq_file *m, void *v)
 {
+	kfree(v);
 }
 
 static const struct seq_operations scsi_devinfo_seq_ops = {
···
  **/
 void scsi_exit_devinfo(void)
 {
-	struct list_head *lh, *lh_next;
-	struct scsi_dev_info_list *devinfo;
-
 #ifdef CONFIG_SCSI_PROC_FS
 	remove_proc_entry("scsi/device_info", NULL);
 #endif
 
-	list_for_each_safe(lh, lh_next, &scsi_dev_info_list) {
+	scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL);
+}
+
+/**
+ * scsi_dev_info_add_list - add a new devinfo list
+ * @key:	key of the list to add
+ * @name:	Name of the list to add (for /proc/scsi/device_info)
+ *
+ * Adds the requested list, returns zero on success, -EEXIST if the
+ * key is already registered to a list, or other error on failure.
+ */
+int scsi_dev_info_add_list(int key, const char *name)
+{
+	struct scsi_dev_info_list_table *devinfo_table =
+		scsi_devinfo_lookup_by_key(key);
+
+	if (!IS_ERR(devinfo_table))
+		/* list already exists */
+		return -EEXIST;
+
+	devinfo_table = kmalloc(sizeof(*devinfo_table), GFP_KERNEL);
+
+	if (!devinfo_table)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&devinfo_table->node);
+	INIT_LIST_HEAD(&devinfo_table->scsi_dev_info_list);
+	devinfo_table->name = name;
+	devinfo_table->key = key;
+	list_add_tail(&devinfo_table->node, &scsi_dev_info_list);
+
+	return 0;
+}
+EXPORT_SYMBOL(scsi_dev_info_add_list);
+
+/**
+ * scsi_dev_info_remove_list - destroy an added devinfo list
+ * @key: key of the list to destroy
+ *
+ * Iterates over the entire list first, freeing all the values, then
+ * frees the list itself.  Returns 0 on success or -EINVAL if the key
+ * can't be found.
+ */
+int scsi_dev_info_remove_list(int key)
+{
+	struct list_head *lh, *lh_next;
+	struct scsi_dev_info_list_table *devinfo_table =
+		scsi_devinfo_lookup_by_key(key);
+
+	if (IS_ERR(devinfo_table))
+		/* no such list */
+		return -EINVAL;
+
+	/* remove from the master list */
+	list_del(&devinfo_table->node);
+
+	list_for_each_safe(lh, lh_next, &devinfo_table->scsi_dev_info_list) {
+		struct scsi_dev_info_list *devinfo;
+
 		devinfo = list_entry(lh, struct scsi_dev_info_list,
 				     dev_info_list);
 		kfree(devinfo);
 	}
+	kfree(devinfo_table);
+
+	return 0;
 }
+EXPORT_SYMBOL(scsi_dev_info_remove_list);
 
 /**
  * scsi_init_devinfo - set up the dynamic device list.
···
 #endif
 	int error, i;
 
-	error = scsi_dev_info_list_add_str(scsi_dev_flags);
+	error = scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL, NULL);
 	if (error)
 		return error;
+
+	error = scsi_dev_info_list_add_str(scsi_dev_flags);
+	if (error)
+		goto out;
 
 	for (i = 0; scsi_static_device_list[i].vendor; i++) {
 		error = scsi_dev_info_list_add(1 /* compatibile */,

drivers/scsi/scsi_lib.c

···
 		ret = scsi_setup_blk_pc_cmnd(sdev, req);
 	return scsi_prep_return(q, req, ret);
 }
+EXPORT_SYMBOL(scsi_prep_fn);
 
 /*
  * scsi_dev_queue_ready: if we can send requests to sdev, return 1 else

drivers/scsi/scsi_priv.h

···
 #endif
 
 /* scsi_devinfo.c */
+
+/* list of keys for the lists */
+enum {
+	SCSI_DEVINFO_GLOBAL = 0,
+	SCSI_DEVINFO_SPI,
+};
+
 extern int scsi_get_device_flags(struct scsi_device *sdev,
 				 const unsigned char *vendor,
 				 const unsigned char *model);
+extern int scsi_get_device_flags_keyed(struct scsi_device *sdev,
+				       const unsigned char *vendor,
+				       const unsigned char *model, int key);
+extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
+					char *model, char *strflags,
+					int flags, int key);
+extern int scsi_dev_info_add_list(int key, const char *name);
+extern int scsi_dev_info_remove_list(int key);
+
 extern int __init scsi_init_devinfo(void);
 extern void scsi_exit_devinfo(void);
 
···
 extern void scsi_exit_queue(void);
 struct request_queue;
 struct request;
-extern int scsi_prep_fn(struct request_queue *, struct request *);
 extern struct kmem_cache *scsi_sdb_cache;
 
 /* scsi_proc.c */

drivers/scsi/scsi_sysfs.c

···
 	return err;
 }
 
-static int scsi_bus_remove(struct device *dev)
-{
-	struct device_driver *drv = dev->driver;
-	struct scsi_device *sdev = to_scsi_device(dev);
-	int err = 0;
-
-	/* reset the prep_fn back to the default since the
-	 * driver may have altered it and it's being removed */
-	blk_queue_prep_rq(sdev->request_queue, scsi_prep_fn);
-
-	if (drv && drv->remove)
-		err = drv->remove(dev);
-
-	return 0;
-}
-
 struct bus_type scsi_bus_type = {
         .name		= "scsi",
         .match		= scsi_bus_match,
 	.uevent		= scsi_bus_uevent,
 	.suspend	= scsi_bus_suspend,
 	.resume		= scsi_bus_resume,
-	.remove		= scsi_bus_remove,
 };
 EXPORT_SYMBOL_GPL(scsi_bus_type);
 

drivers/scsi/scsi_transport_fc.c

···
 	kfree(job);
 }
 
-
 /**
  * fc_bsg_jobdone - completion routine for bsg requests that the LLD has
  *                  completed
···
 {
 	struct request *req = job->req;
 	struct request *rsp = req->next_rq;
-	unsigned long flags;
 	int err;
 
-	spin_lock_irqsave(&job->job_lock, flags);
-	job->state_flags |= FC_RQST_STATE_DONE;
-	job->ref_cnt--;
-	spin_unlock_irqrestore(&job->job_lock, flags);
-
 	err = job->req->errors = job->reply->result;
+
 	if (err < 0)
 		/* we're only returning the result field in the reply */
 		job->req->sense_len = sizeof(uint32_t);
···
 		rsp->resid_len -= min(job->reply->reply_payload_rcv_len,
 				      rsp->resid_len);
 	}
-
-	blk_end_request_all(req, err);
-
-	fc_destroy_bsgjob(job);
+	blk_complete_request(req);
 }
 
+/**
+ * fc_bsg_softirq_done - softirq done routine for destroying the bsg requests
+ * @req:        BSG request that holds the job to be destroyed
+ */
+static void fc_bsg_softirq_done(struct request *rq)
+{
+	struct fc_bsg_job *job = rq->special;
+	unsigned long flags;
+
+	spin_lock_irqsave(&job->job_lock, flags);
+	job->state_flags |= FC_RQST_STATE_DONE;
+	job->ref_cnt--;
+	spin_unlock_irqrestore(&job->job_lock, flags);
+
+	blk_end_request_all(rq, rq->errors);
+	fc_destroy_bsgjob(job);
+}
 
 /**
  * fc_bsg_job_timeout - handler for when a bsg request timesout
···
 				"abort failed with status %d\n", err);
 	}
 
-	if (!done) {
-		spin_lock_irqsave(&job->job_lock, flags);
-		job->ref_cnt--;
-		spin_unlock_irqrestore(&job->job_lock, flags);
-		fc_destroy_bsgjob(job);
-	}
-
 	/* the blk_end_sync_io() doesn't check the error */
-	return BLK_EH_HANDLED;
+	if (done)
+		return BLK_EH_NOT_HANDLED;
+	else
+		return BLK_EH_HANDLED;
 }
-
-
 
 static int
 fc_bsg_map_buffer(struct fc_bsg_buffer *buf, struct request *req)
···
 	struct fc_internal *i = to_fc_internal(shost->transportt);
 	struct request_queue *q;
 	int err;
-	char bsg_name[BUS_ID_SIZE]; /*20*/
+	char bsg_name[20];
 
 	fc_host->rqst_q = NULL;
 
···
 
 	q->queuedata = shost;
 	queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q);
+	blk_queue_softirq_done(q, fc_bsg_softirq_done);
 	blk_queue_rq_timed_out(q, fc_bsg_job_timeout);
 	blk_queue_rq_timeout(q, FC_DEFAULT_BSG_TIMEOUT);
 
···
 
 	q->queuedata = rport;
 	queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q);
+	blk_queue_softirq_done(q, fc_bsg_softirq_done);
 	blk_queue_rq_timed_out(q, fc_bsg_job_timeout);
 	blk_queue_rq_timeout(q, BLK_DEFAULT_SG_TIMEOUT);
 

drivers/scsi/scsi_transport_iscsi.c

···
 						 "Too many iscsi targets. Max "
 						 "number of targets is %d.\n",
 						 ISCSI_MAX_TARGET - 1);
+			err = -EOVERFLOW;
 			goto release_host;
 		}
 	}

drivers/scsi/scsi_transport_sas.c

···
 		ret = handler(shost, rphy, req);
 		req->errors = ret;
 
-		spin_lock_irq(q->queue_lock);
+		blk_end_request_all(req, ret);
 
-		req->end_io(req, ret);
+		spin_lock_irq(q->queue_lock);
 	}
 }
 

drivers/scsi/scsi_transport_spi.c

···
 #define DV_RETRIES	3	/* should only need at most 
 				 * two cc/ua clears */
 
+/* Our blacklist flags */
+enum {
+	SPI_BLIST_NOIUS = 0x1,
+};
+
+/* blacklist table, modelled on scsi_devinfo.c */
+static struct {
+	char *vendor;
+	char *model;
+	unsigned flags;
+} spi_static_device_list[] __initdata = {
+	{"HP", "Ultrium 3-SCSI", SPI_BLIST_NOIUS },
+	{"IBM", "ULTRIUM-TD3", SPI_BLIST_NOIUS },
+	{NULL, NULL, 0}
+};
+
 /* Private data accessors (keep these out of the header file) */
 #define spi_dv_in_progress(x) (((struct spi_transport_attrs *)&(x)->starget_data)->dv_in_progress)
 #define spi_dv_mutex(x) (((struct spi_transport_attrs *)&(x)->starget_data)->dv_mutex)
···
 {
 	struct scsi_device *sdev = to_scsi_device(dev);
 	struct scsi_target *starget = sdev->sdev_target;
+	unsigned bflags = scsi_get_device_flags_keyed(sdev, &sdev->inquiry[8],
+						      &sdev->inquiry[16],
+						      SCSI_DEVINFO_SPI);
 
 	/* Populate the target capability fields with the values
 	 * gleaned from the device inquiry */
···
 	spi_support_dt(starget) = scsi_device_dt(sdev);
 	spi_support_dt_only(starget) = scsi_device_dt_only(sdev);
 	spi_support_ius(starget) = scsi_device_ius(sdev);
+	if (bflags & SPI_BLIST_NOIUS) {
+		dev_info(dev, "Information Units disabled by blacklist\n");
+		spi_support_ius(starget) = 0;
+	}
 	spi_support_qas(starget) = scsi_device_qas(sdev);
 
 	return 0;
···
 		return;
 	}
 
-	if (!scsi_device_wide(sdev)) {
+	if (!spi_support_wide(starget)) {
 		spi_max_width(starget) = 0;
 		max_width = 0;
 	}
···
 		return;
 
 	/* device can't handle synchronous */
-	if (!scsi_device_sync(sdev) && !scsi_device_dt(sdev))
+	if (!spi_support_sync(starget) && !spi_support_dt(starget))
 		return;
 
 	/* len == -1 is the signal that we need to ascertain the
···
 
 	/* try QAS requests; this should be harmless to set if the
 	 * target supports it */
-	if (scsi_device_qas(sdev) && spi_max_qas(starget)) {
+	if (spi_support_qas(starget) && spi_max_qas(starget)) {
 		DV_SET(qas, 1);
 	} else {
 		DV_SET(qas, 0);
 	}
 
-	if (scsi_device_ius(sdev) && spi_max_iu(starget) && min_period < 9) {
+	if (spi_support_ius(starget) && spi_max_iu(starget) &&
+	    min_period < 9) {
 		/* This u320 (or u640). Set IU transfers */
 		DV_SET(iu, 1);
 		/* Then set the optional parameters */
···
 		i->f->get_signalling(shost);
 	if (spi_signalling(shost) == SPI_SIGNAL_SE ||
 	    spi_signalling(shost) == SPI_SIGNAL_HVD ||
-	    !scsi_device_dt(sdev)) {
+	    !spi_support_dt(starget)) {
 		DV_SET(dt, 0);
 	} else {
 		DV_SET(dt, 1);
···
 
 static __init int spi_transport_init(void)
 {
-	int error = transport_class_register(&spi_transport_class);
+	int error = scsi_dev_info_add_list(SCSI_DEVINFO_SPI,
+					   "SCSI Parallel Transport Class");
+	if (!error) {
+		int i;
+
+		for (i = 0; spi_static_device_list[i].vendor; i++)
+			scsi_dev_info_list_add_keyed(1,	/* compatible */
+						     spi_static_device_list[i].vendor,
+						     spi_static_device_list[i].model,
+						     NULL,
+						     spi_static_device_list[i].flags,
+						     SCSI_DEVINFO_SPI);
+	}
+
+	error = transport_class_register(&spi_transport_class);
 	if (error)
 		return error;
 	error = anon_transport_class_register(&spi_device_class);
···
 	transport_class_unregister(&spi_transport_class);
 	anon_transport_class_unregister(&spi_device_class);
 	transport_class_unregister(&spi_host_class);
+	scsi_dev_info_remove_list(SCSI_DEVINFO_SPI);
 }
 
 MODULE_AUTHOR("Martin Hicks");

drivers/scsi/sd.c

···
 	int sense_valid = 0;
 	int the_result;
 	int retries = 3;
+	unsigned int alignment;
 	unsigned long long lba;
 	unsigned sector_size;
 
···
 		sdkp->capacity = 0;
 		return -EOVERFLOW;
 	}
+
+	/* Logical blocks per physical block exponent */
+	sdkp->hw_sector_size = (1 << (buffer[13] & 0xf)) * sector_size;
+
+	/* Lowest aligned logical block */
+	alignment = ((buffer[14] & 0x3f) << 8 | buffer[15]) * sector_size;
+	blk_queue_alignment_offset(sdp->request_queue, alignment);
+	if (alignment && sdkp->first_scan)
+		sd_printk(KERN_NOTICE, sdkp,
+			  "physical block alignment offset: %u\n", alignment);
 
 	sdkp->capacity = lba + 1;
 	return sector_size;
···
 	}
 
 	sdkp->capacity = lba + 1;
+	sdkp->hw_sector_size = sector_size;
 	return sector_size;
 }
 
···
 		string_get_size(sz, STRING_UNITS_10, cap_str_10,
 				sizeof(cap_str_10));
 
-		if (sdkp->first_scan || old_capacity != sdkp->capacity)
+		if (sdkp->first_scan || old_capacity != sdkp->capacity) {
 			sd_printk(KERN_NOTICE, sdkp,
-				  "%llu %d-byte hardware sectors: (%s/%s)\n",
+				  "%llu %d-byte logical blocks: (%s/%s)\n",
 				  (unsigned long long)sdkp->capacity,
 				  sector_size, cap_str_10, cap_str_2);
+
+			if (sdkp->hw_sector_size != sector_size)
+				sd_printk(KERN_NOTICE, sdkp,
+					  "%u-byte physical blocks\n",
+					  sdkp->hw_sector_size);
+		}
 	}
 
 	/* Rescale capacity to 512-byte units */
···
 	else if (sector_size == 256)
 		sdkp->capacity >>= 1;
 
+	blk_queue_physical_block_size(sdp->request_queue, sdkp->hw_sector_size);
 	sdkp->device->sector_size = sector_size;
 }
 
···
 }
 
 /**
+ * sd_read_block_limits - Query disk device for preferred I/O sizes.
+ * @disk: disk to query
+ */
+static void sd_read_block_limits(struct scsi_disk *sdkp)
+{
+	unsigned int sector_sz = sdkp->device->sector_size;
+	char *buffer;
+
+	/* Block Limits VPD */
+	buffer = scsi_get_vpd_page(sdkp->device, 0xb0);
+
+	if (buffer == NULL)
+		return;
+
+	blk_queue_io_min(sdkp->disk->queue,
+			 get_unaligned_be16(&buffer[6]) * sector_sz);
+	blk_queue_io_opt(sdkp->disk->queue,
+			 get_unaligned_be32(&buffer[12]) * sector_sz);
+
+	kfree(buffer);
+}
+
+/**
+ * sd_read_block_characteristics - Query block dev. characteristics
+ * @disk: disk to query
+ */
+static void sd_read_block_characteristics(struct scsi_disk *sdkp)
+{
+	char *buffer;
+	u16 rot;
+
+	/* Block Device Characteristics VPD */
+	buffer = scsi_get_vpd_page(sdkp->device, 0xb1);
+
+	if (buffer == NULL)
+		return;
+
+	rot = get_unaligned_be16(&buffer[4]);
+
+	if (rot == 1)
+		queue_flag_set_unlocked(QUEUE_FLAG_NONROT, sdkp->disk->queue);
+
+	kfree(buffer);
+}
+
+/**
  *	sd_revalidate_disk - called the first time a new disk is seen,
  *	performs disk spin up, read_capacity, etc.
  *	@disk: struct gendisk we care about
···
 	 */
 	if (sdkp->media_present) {
 		sd_read_capacity(sdkp, buffer);
+		sd_read_block_limits(sdkp);
+		sd_read_block_characteristics(sdkp);
 		sd_read_write_protect_flag(sdkp, buffer);
 		sd_read_cache_type(sdkp, buffer);
 		sd_read_app_tag_own(sdkp, buffer);
···
 	add_disk(gd);
 	sd_dif_config_host(sdkp);
 
+	sd_revalidate_disk(gd);
+
 	sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n",
 		  sdp->removable ? "removable " : "");
 }
···
 
 	async_synchronize_full();
 	sdkp = dev_get_drvdata(dev);
+	blk_queue_prep_rq(sdkp->device->request_queue, scsi_prep_fn);
 	device_del(&sdkp->dev);
 	del_gendisk(sdkp->disk);
 	sd_shutdown(dev);

drivers/scsi/sd.h

···
 	unsigned int	openers;	/* protected by BKL for now, yuck */
 	sector_t	capacity;	/* size in 512-byte sectors */
 	u32		index;
+	unsigned short	hw_sector_size;
 	u8		media_present;
 	u8		write_prot;
 	u8		protection_type;/* Data Integrity Field */

drivers/scsi/sr.c

···
 {
 	struct scsi_cd *cd = dev_get_drvdata(dev);
 
+	blk_queue_prep_rq(cd->device->request_queue, scsi_prep_fn);
 	del_gendisk(cd->disk);
 
 	mutex_lock(&sr_ref_mutex);

drivers/scsi/sym53c8xx_2/sym_hipd.c

···
 	int phase	= cmd & 7;
 	struct sym_ccb *cp	= sym_ccb_from_dsa(np, dsa);
 
-	printf("%s: SCSI parity error detected: SCR1=%d DBC=%x SBCL=%x\n",
-		sym_name(np), hsts, dbc, sbcl);
+	if (printk_ratelimit())
+		printf("%s: SCSI parity error detected: SCR1=%d DBC=%x SBCL=%x\n",
+			sym_name(np), hsts, dbc, sbcl);
 
 	/*
 	 *  Check that the chip is connected to the SCSI BUS.

include/scsi/fc_encode.h

···
 		break;
 
 	default:
-		FC_DBG("Invalid op code %x \n", op);
 		return -EINVAL;
 	}
 	*r_ctl = FC_RCTL_DD_UNSOL_CTL;
···
 		break;
 
 	default:
-		FC_DBG("Invalid op code %x \n", op);
 		return -EINVAL;
 	}
 

include/scsi/libfc.h

···
 
 #include <scsi/fc_frame.h>
 
-#define LIBFC_DEBUG
+#define FC_LIBFC_LOGGING 0x01 /* General logging, not categorized */
+#define FC_LPORT_LOGGING 0x02 /* lport layer logging */
+#define FC_DISC_LOGGING  0x04 /* discovery layer logging */
+#define FC_RPORT_LOGGING 0x08 /* rport layer logging */
+#define FC_FCP_LOGGING   0x10 /* I/O path logging */
+#define FC_EM_LOGGING    0x20 /* Exchange Manager logging */
+#define FC_EXCH_LOGGING  0x40 /* Exchange/Sequence logging */
+#define FC_SCSI_LOGGING  0x80 /* SCSI logging (mostly error handling) */
 
-#ifdef LIBFC_DEBUG
-/* Log messages */
-#define FC_DBG(fmt, args...)						\
-	do {								\
-		printk(KERN_INFO "%s " fmt, __func__, ##args);		\
-	} while (0)
-#else
-#define FC_DBG(fmt, args...)
-#endif
+extern unsigned int fc_debug_logging;
+
+#define FC_CHECK_LOGGING(LEVEL, CMD)				\
+do {								\
+	if (unlikely(fc_debug_logging & LEVEL))			\
+		do {						\
+			CMD;					\
+		} while (0);					\
+} while (0);
+
+#define FC_LIBFC_DBG(fmt, args...)					\
+	FC_CHECK_LOGGING(FC_LIBFC_LOGGING,				\
+			 printk(KERN_INFO "libfc: " fmt, ##args);)
+
+#define FC_LPORT_DBG(lport, fmt, args...)				\
+	FC_CHECK_LOGGING(FC_LPORT_LOGGING,				\
+			 printk(KERN_INFO "lport: %6x: " fmt,		\
+				fc_host_port_id(lport->host), ##args);)
+
+#define FC_DISC_DBG(disc, fmt, args...)					\
+	FC_CHECK_LOGGING(FC_DISC_LOGGING,				\
+			 printk(KERN_INFO "disc: %6x: " fmt,		\
+				fc_host_port_id(disc->lport->host),	\
+				##args);)
+
+#define FC_RPORT_DBG(rport, fmt, args...)				\
+do {									\
+	struct fc_rport_libfc_priv *rdata = rport->dd_data;		\
+	struct fc_lport *lport = rdata->local_port;			\
+	FC_CHECK_LOGGING(FC_RPORT_LOGGING,				\
+			 printk(KERN_INFO "rport: %6x: %6x: " fmt,	\
+				fc_host_port_id(lport->host),		\
+				rport->port_id, ##args);)		\
+} while (0);
+
+#define FC_FCP_DBG(pkt, fmt, args...)					\
+	FC_CHECK_LOGGING(FC_FCP_LOGGING,				\
+			 printk(KERN_INFO "fcp: %6x: %6x: " fmt,	\
+				fc_host_port_id(pkt->lp->host),		\
+				pkt->rport->port_id, ##args);)
+
+#define FC_EM_DBG(em, fmt, args...)					\
+	FC_CHECK_LOGGING(FC_EM_LOGGING,					\
+			 printk(KERN_INFO "em: %6x: " fmt,		\
+				fc_host_port_id(em->lp->host),		\
+				##args);)
+
+#define FC_EXCH_DBG(exch, fmt, args...)					\
+	FC_CHECK_LOGGING(FC_EXCH_LOGGING,				\
+			 printk(KERN_INFO "exch: %6x: %4x: " fmt,	\
+				fc_host_port_id(exch->lp->host),	\
+				exch->xid, ##args);)
+
+#define FC_SCSI_DBG(lport, fmt, args...)				\
+	FC_CHECK_LOGGING(FC_SCSI_LOGGING,                               \
+			 printk(KERN_INFO "scsi: %6x: " fmt,		\
+				fc_host_port_id(lport->host), ##args);)
 
 /*
  * libfc error codes

include/scsi/libiscsi.h

···
 	struct scsi_cmnd	*sc;		/* associated SCSI cmd*/
 	struct iscsi_conn	*conn;		/* used connection    */
 
+	/* data processing tracking */
+	unsigned long		last_xfer;
+	unsigned long		last_timeout;
+	bool			have_checked_conn;
 	/* state set/tested under session->lock */
 	int			state;
 	atomic_t		refcount;

include/scsi/scsi_driver.h

···
 int scsi_setup_fs_cmnd(struct scsi_device *sdev, struct request *req);
 int scsi_prep_state_check(struct scsi_device *sdev, struct request *req);
 int scsi_prep_return(struct request_queue *q, struct request *req, int ret);
+int scsi_prep_fn(struct request_queue *, struct request *);
 
 #endif /* _SCSI_SCSI_DRIVER_H */