Merge tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

Pull IEEE 1394 (FireWire) subsystem updates post v3.3 from Stefan Richter:

 - Some SBP-2 initiator fixes, side product from ongoing work on a target.

 - Reintroduction of an isochronous I/O feature of the older ieee1394 driver
   stack (flush buffer completions); it was evidently rarely used but not
   actually unused.  Matching libraw1394 code is already available.

 - Be sure to prefix all kernel log messages with device name or card name,
   and other logging related cleanups.

 - Misc other small cleanups, among them a small API change that affects
   sound/firewire/ too. Clemens Ladisch is aware of it.

* tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: (26 commits)
  firewire: allow explicit flushing of iso packet completions
  firewire: prevent dropping of completed iso packet header data
  firewire: ohci: factor out iso completion flushing code
  firewire: ohci: simplify iso header pointer arithmetic
  firewire: ohci: optimize control bit checks
  firewire: ohci: remove unused excess_bytes field
  firewire: ohci: copy_iso_headers(): make comment match the code
  firewire: cdev: fix IR multichannel event documentation
  firewire: ohci: fix too-early completion of IR multichannel buffers
  firewire: ohci: move runtime debug facility out of #ifdef
  firewire: tone down some diagnostic log messages
  firewire: sbp2: replace a GFP_ATOMIC allocation
  firewire: sbp2: Fix SCSI sense data mangling
  firewire: sbp2: Ignore SBP-2 targets on the local node
  firewire: sbp2: Take into account Unit_Unique_ID
  firewire: nosy: Use the macro DMA_BIT_MASK().
  firewire: core: convert AR-req handler lock from _irqsave to _bh
  firewire: core: fix race at address_handler unregistration
  firewire: core: remove obsolete comment
  firewire: core: prefix log messages with card name
  ...

drivers/firewire/Kconfig

@@ -28,11 +28,6 @@ config FIREWIRE_OHCI
 	  To compile this driver as a module, say M here:  The module will be
 	  called firewire-ohci.
 
-config FIREWIRE_OHCI_DEBUG
-	bool
-	depends on FIREWIRE_OHCI
-	default y
-
 config FIREWIRE_SBP2
 	tristate "Storage devices (SBP-2 protocol)"
 	depends on FIREWIRE && SCSI

drivers/firewire/core-card.c

@@ -37,6 +37,22 @@
 
 #include "core.h"
 
+#define define_fw_printk_level(func, kern_level)		\
+void func(const struct fw_card *card, const char *fmt, ...)	\
+{								\
+	struct va_format vaf;					\
+	va_list args;						\
+								\
+	va_start(args, fmt);					\
+	vaf.fmt = fmt;						\
+	vaf.va = &args;						\
+	printk(kern_level KBUILD_MODNAME " %s: %pV",		\
+	       dev_name(card->device), &vaf);			\
+	va_end(args);						\
+}
+define_fw_printk_level(fw_err, KERN_ERR);
+define_fw_printk_level(fw_notice, KERN_NOTICE);
+
 int fw_compute_block_crc(__be32 *block)
 {
 	int length;
@@ -260,7 +276,7 @@ static void allocate_broadcast_channel(struct fw_card *card, int generation)
 		fw_iso_resource_manage(card, generation, 1ULL << 31,
 				       &channel, &bandwidth, true);
 		if (channel != 31) {
-			fw_notify("failed to allocate broadcast channel\n");
+			fw_notice(card, "failed to allocate broadcast channel\n");
 			return;
 		}
 		card->broadcast_channel_allocated = true;
@@ -343,14 +359,14 @@ static void bm_work(struct work_struct *work)
 
 		if (!card->irm_node->link_on) {
 			new_root_id = local_id;
-			fw_notify("%s, making local node (%02x) root.\n",
+			fw_notice(card, "%s, making local node (%02x) root\n",
 				  "IRM has link off", new_root_id);
 			goto pick_me;
 		}
 
 		if (irm_is_1394_1995_only && !keep_this_irm) {
 			new_root_id = local_id;
-			fw_notify("%s, making local node (%02x) root.\n",
+			fw_notice(card, "%s, making local node (%02x) root\n",
 				  "IRM is not 1394a compliant", new_root_id);
 			goto pick_me;
 		}
@@ -405,7 +421,7 @@ static void bm_work(struct work_struct *work)
 			 * root, and thus, IRM.
 			 */
 			new_root_id = local_id;
-			fw_notify("%s, making local node (%02x) root.\n",
+			fw_notice(card, "%s, making local node (%02x) root\n",
 				  "BM lock failed", new_root_id);
 			goto pick_me;
 		}
@@ -478,8 +494,8 @@ static void bm_work(struct work_struct *work)
 	spin_unlock_irq(&card->lock);
 
 	if (do_reset) {
-		fw_notify("phy config: card %d, new root=%x, gap_count=%d\n",
-			  card->index, new_root_id, gap_count);
+		fw_notice(card, "phy config: new root=%x, gap_count=%d\n",
+			  new_root_id, gap_count);
 		fw_send_phy_config(card, new_root_id, generation, gap_count);
 		reset_bus(card, true);
 		/* Will allocate broadcast channel after the reset. */
@@ -634,6 +650,11 @@ static void dummy_flush_queue_iso(struct fw_iso_context *ctx)
 {
 }
 
+static int dummy_flush_iso_completions(struct fw_iso_context *ctx)
+{
+	return -ENODEV;
+}
+
 static const struct fw_card_driver dummy_driver_template = {
 	.read_phy_reg		= dummy_read_phy_reg,
 	.update_phy_reg		= dummy_update_phy_reg,
@@ -646,6 +667,7 @@ static const struct fw_card_driver dummy_driver_template = {
 	.set_iso_channels	= dummy_set_iso_channels,
 	.queue_iso		= dummy_queue_iso,
 	.flush_queue_iso	= dummy_flush_queue_iso,
+	.flush_iso_completions	= dummy_flush_iso_completions,
 };
 
 void fw_card_release(struct kref *kref)

drivers/firewire/core-cdev.c

@@ -51,7 +51,7 @@
 /*
  * ABI version history is documented in linux/firewire-cdev.h.
  */
-#define FW_CDEV_KERNEL_VERSION			4
+#define FW_CDEV_KERNEL_VERSION			5
 #define FW_CDEV_VERSION_EVENT_REQUEST2		4
 #define FW_CDEV_VERSION_ALLOCATE_REGION_END	4
 
@@ -389,7 +389,7 @@ static void queue_bus_reset_event(struct client *client)
 
 	e = kzalloc(sizeof(*e), GFP_KERNEL);
 	if (e == NULL) {
-		fw_notify("Out of memory when allocating event\n");
+		fw_notice(client->device->card, "out of memory when allocating event\n");
 		return;
 	}
 
@@ -438,6 +438,7 @@ union ioctl_arg {
 	struct fw_cdev_send_phy_packet		send_phy_packet;
 	struct fw_cdev_receive_phy_packets	receive_phy_packets;
 	struct fw_cdev_set_iso_channels		set_iso_channels;
+	struct fw_cdev_flush_iso		flush_iso;
 };
 
 static int ioctl_get_info(struct client *client, union ioctl_arg *arg)
@@ -691,7 +692,7 @@ static void handle_request(struct fw_card *card, struct fw_request *request,
 	r = kmalloc(sizeof(*r), GFP_ATOMIC);
 	e = kmalloc(sizeof(*e), GFP_ATOMIC);
 	if (r == NULL || e == NULL) {
-		fw_notify("Out of memory when allocating event\n");
+		fw_notice(card, "out of memory when allocating event\n");
 		goto failed;
 	}
 	r->card    = card;
@@ -928,7 +929,7 @@ static void iso_callback(struct fw_iso_context *context, u32 cycle,
 
 	e = kmalloc(sizeof(*e) + header_length, GFP_ATOMIC);
 	if (e == NULL) {
-		fw_notify("Out of memory when allocating event\n");
+		fw_notice(context->card, "out of memory when allocating event\n");
 		return;
 	}
 	e->interrupt.type      = FW_CDEV_EVENT_ISO_INTERRUPT;
@@ -948,7 +949,7 @@ static void iso_mc_callback(struct fw_iso_context *context,
 
 	e = kmalloc(sizeof(*e), GFP_ATOMIC);
 	if (e == NULL) {
-		fw_notify("Out of memory when allocating event\n");
+		fw_notice(context->card, "out of memory when allocating event\n");
 		return;
 	}
 	e->interrupt.type      = FW_CDEV_EVENT_ISO_INTERRUPT_MULTICHANNEL;
@@ -1168,6 +1169,16 @@ static int ioctl_stop_iso(struct client *client, union ioctl_arg *arg)
 	return fw_iso_context_stop(client->iso_context);
 }
 
+static int ioctl_flush_iso(struct client *client, union ioctl_arg *arg)
+{
+	struct fw_cdev_flush_iso *a = &arg->flush_iso;
+
+	if (client->iso_context == NULL || a->handle != 0)
+		return -EINVAL;
+
+	return fw_iso_context_flush_completions(client->iso_context);
+}
+
 static int ioctl_get_cycle_timer2(struct client *client, union ioctl_arg *arg)
 {
 	struct fw_cdev_get_cycle_timer2 *a = &arg->get_cycle_timer2;
@@ -1548,7 +1559,7 @@ void fw_cdev_handle_phy_packet(struct fw_card *card, struct fw_packet *p)
 	list_for_each_entry(client, &card->phy_receiver_list, phy_receiver_link) {
 		e = kmalloc(sizeof(*e) + 8, GFP_ATOMIC);
 		if (e == NULL) {
-			fw_notify("Out of memory when allocating event\n");
+			fw_notice(card, "out of memory when allocating event\n");
 			break;
 		}
 		e->phy_packet.closure	= client->phy_receiver_closure;
@@ -1589,6 +1600,7 @@ static int (* const ioctl_handlers[])(struct client *, union ioctl_arg *) = {
 	[0x15] = ioctl_send_phy_packet,
 	[0x16] = ioctl_receive_phy_packets,
 	[0x17] = ioctl_set_iso_channels,
+	[0x18] = ioctl_flush_iso,
 };
 
 static int dispatch_ioctl(struct client *client,

drivers/firewire/core-device.c

@@ -485,6 +485,7 @@ static int read_rom(struct fw_device *device,
  */
 static int read_config_rom(struct fw_device *device, int generation)
 {
+	struct fw_card *card = device->card;
 	const u32 *old_rom, *new_rom;
 	u32 *rom, *stack;
 	u32 sp, key;
@@ -529,12 +530,12 @@ static int read_config_rom(struct fw_device *device, int generation)
 	 */
 	if ((rom[2] & 0x7) < device->max_speed ||
 	    device->max_speed == SCODE_BETA ||
-	    device->card->beta_repeaters_present) {
+	    card->beta_repeaters_present) {
 		u32 dummy;
 
 		/* for S1600 and S3200 */
 		if (device->max_speed == SCODE_BETA)
-			device->max_speed = device->card->link_speed;
+			device->max_speed = card->link_speed;
 
 		while (device->max_speed > SCODE_100) {
 			if (read_rom(device, generation, 0, &dummy) ==
@@ -576,9 +577,9 @@ static int read_config_rom(struct fw_device *device, int generation)
 			 * a firmware bug.  Ignore this whole block, i.e.
 			 * simply set a fake block length of 0.
 			 */
-			fw_error("skipped invalid ROM block %x at %llx\n",
-				 rom[i],
-				 i * 4 | CSR_REGISTER_BASE | CSR_CONFIG_ROM);
+			fw_err(card, "skipped invalid ROM block %x at %llx\n",
+			       rom[i],
+			       i * 4 | CSR_REGISTER_BASE | CSR_CONFIG_ROM);
 			rom[i] = 0;
 			end = i;
 		}
@@ -604,9 +605,10 @@ static int read_config_rom(struct fw_device *device, int generation)
 			 * the ROM don't have to check offsets all the time.
 			 */
 			if (i + (rom[i] & 0xffffff) >= MAX_CONFIG_ROM_SIZE) {
-				fw_error("skipped unsupported ROM entry %x at %llx\n",
-					 rom[i],
-					 i * 4 | CSR_REGISTER_BASE | CSR_CONFIG_ROM);
+				fw_err(card,
+				       "skipped unsupported ROM entry %x at %llx\n",
+				       rom[i],
+				       i * 4 | CSR_REGISTER_BASE | CSR_CONFIG_ROM);
 				rom[i] = 0;
 				continue;
 			}
@@ -641,6 +643,7 @@ static void fw_unit_release(struct device *dev)
 {
 	struct fw_unit *unit = fw_unit(dev);
 
+	fw_device_put(fw_parent_device(unit));
 	kfree(unit);
 }
 
@@ -672,7 +675,7 @@ static void create_units(struct fw_device *device)
 		 */
 		unit = kzalloc(sizeof(*unit), GFP_KERNEL);
 		if (unit == NULL) {
-			fw_error("failed to allocate memory for unit\n");
+			fw_err(device->card, "out of memory for unit\n");
 			continue;
 		}
 
@@ -692,6 +695,7 @@ static void create_units(struct fw_device *device)
 		if (device_register(&unit->device) < 0)
 			goto skip_unit;
 
+		fw_device_get(device);
 		continue;
 
 	skip_unit:
@@ -873,7 +877,7 @@ static int lookup_existing_device(struct device *dev, void *data)
 		smp_wmb();  /* update node_id before generation */
 		old->generation = card->generation;
 		old->config_rom_retries = 0;
-		fw_notify("rediscovered device %s\n", dev_name(dev));
+		fw_notice(card, "rediscovered device %s\n", dev_name(dev));
 
 		PREPARE_DELAYED_WORK(&old->work, fw_device_update);
 		fw_schedule_device_work(old, 0);
@@ -954,6 +958,7 @@ static void fw_device_init(struct work_struct *work)
 {
 	struct fw_device *device =
 		container_of(work, struct fw_device, work.work);
+	struct fw_card *card = device->card;
 	struct device *revived_dev;
 	int minor, ret;
 
@@ -970,16 +975,16 @@ static void fw_device_init(struct work_struct *work)
 			fw_schedule_device_work(device, RETRY_DELAY);
 		} else {
 			if (device->node->link_on)
-				fw_notify("giving up on config rom for node id %x\n",
+				fw_notice(card, "giving up on Config ROM for node id %x\n",
 					  device->node_id);
-			if (device->node == device->card->root_node)
-				fw_schedule_bm_work(device->card, 0);
+			if (device->node == card->root_node)
+				fw_schedule_bm_work(card, 0);
 			fw_device_release(&device->device);
 		}
 		return;
 	}
 
-	revived_dev = device_find_child(device->card->device,
+	revived_dev = device_find_child(card->device,
 					device, lookup_existing_device);
 	if (revived_dev) {
 		put_device(revived_dev);
@@ -1002,7 +1007,7 @@ static void fw_device_init(struct work_struct *work)
 
 	device->device.bus = &fw_bus_type;
 	device->device.type = &fw_device_type;
-	device->device.parent = device->card->device;
+	device->device.parent = card->device;
 	device->device.devt = MKDEV(fw_cdev_major, minor);
 	dev_set_name(&device->device, "fw%d", minor);
 
@@ -1014,7 +1019,7 @@ static void fw_device_init(struct work_struct *work)
 				&device->attribute_group);
 
 	if (device_add(&device->device)) {
-		fw_error("Failed to add device.\n");
+		fw_err(card, "failed to add device\n");
 		goto error_with_cdev;
 	}
 
@@ -1035,18 +1040,10 @@ static void fw_device_init(struct work_struct *work)
 		PREPARE_DELAYED_WORK(&device->work, fw_device_shutdown);
 		fw_schedule_device_work(device, SHUTDOWN_DELAY);
 	} else {
-		if (device->config_rom_retries)
-			fw_notify("created device %s: GUID %08x%08x, S%d00, "
-				  "%d config ROM retries\n",
-				  dev_name(&device->device),
-				  device->config_rom[3], device->config_rom[4],
-				  1 << device->max_speed,
-				  device->config_rom_retries);
-		else
-			fw_notify("created device %s: GUID %08x%08x, S%d00\n",
-				  dev_name(&device->device),
-				  device->config_rom[3], device->config_rom[4],
-				  1 << device->max_speed);
+		fw_notice(card, "created device %s: GUID %08x%08x, S%d00\n",
+			  dev_name(&device->device),
+			  device->config_rom[3], device->config_rom[4],
+			  1 << device->max_speed);
 		device->config_rom_retries = 0;
 
 		set_broadcast_channel(device, device->generation);
@@ -1058,8 +1055,8 @@ static void fw_device_init(struct work_struct *work)
 	 * just end up running the IRM work a couple of extra times -
 	 * pretty harmless.
 	 */
-	if (device->node == device->card->root_node)
-		fw_schedule_bm_work(device->card, 0);
+	if (device->node == card->root_node)
+		fw_schedule_bm_work(card, 0);
 
 	return;
 
@@ -1163,12 +1160,13 @@ static void fw_device_refresh(struct work_struct *work)
 			   FW_DEVICE_RUNNING) == FW_DEVICE_GONE)
 		goto gone;
 
-	fw_notify("refreshed device %s\n", dev_name(&device->device));
+	fw_notice(card, "refreshed device %s\n", dev_name(&device->device));
 	device->config_rom_retries = 0;
 	goto out;
 
  give_up:
-	fw_notify("giving up on refresh of device %s\n", dev_name(&device->device));
+	fw_notice(card, "giving up on refresh of device %s\n",
+		  dev_name(&device->device));
  gone:
 	atomic_set(&device->state, FW_DEVICE_GONE);
 	PREPARE_DELAYED_WORK(&device->work, fw_device_shutdown);

drivers/firewire/core-iso.c

@@ -192,6 +192,12 @@ void fw_iso_context_queue_flush(struct fw_iso_context *ctx)
 }
 EXPORT_SYMBOL(fw_iso_context_queue_flush);
 
+int fw_iso_context_flush_completions(struct fw_iso_context *ctx)
+{
+	return ctx->card->driver->flush_iso_completions(ctx);
+}
+EXPORT_SYMBOL(fw_iso_context_flush_completions);
+
 int fw_iso_context_stop(struct fw_iso_context *ctx)
 {
 	return ctx->card->driver->stop_iso(ctx);

drivers/firewire/core-topology.c

@@ -205,19 +205,19 @@ static struct fw_node *build_tree(struct fw_card *card,
 		next_sid = count_ports(sid, &port_count, &child_port_count);
 
 		if (next_sid == NULL) {
-			fw_error("Inconsistent extended self IDs.\n");
+			fw_err(card, "inconsistent extended self IDs\n");
 			return NULL;
 		}
 
 		q = *sid;
 		if (phy_id != SELF_ID_PHY_ID(q)) {
-			fw_error("PHY ID mismatch in self ID: %d != %d.\n",
-				 phy_id, SELF_ID_PHY_ID(q));
+			fw_err(card, "PHY ID mismatch in self ID: %d != %d\n",
+			       phy_id, SELF_ID_PHY_ID(q));
 			return NULL;
 		}
 
 		if (child_port_count > stack_depth) {
-			fw_error("Topology stack underflow\n");
+			fw_err(card, "topology stack underflow\n");
 			return NULL;
 		}
 
@@ -235,7 +235,7 @@ static struct fw_node *build_tree(struct fw_card *card,
 
 		node = fw_node_create(q, port_count, card->color);
 		if (node == NULL) {
-			fw_error("Out of memory while building topology.\n");
+			fw_err(card, "out of memory while building topology\n");
 			return NULL;
 		}
 
@@ -284,8 +284,8 @@ static struct fw_node *build_tree(struct fw_card *card,
 		 */
 		if ((next_sid == end && parent_count != 0) ||
 		    (next_sid < end && parent_count != 1)) {
-			fw_error("Parent port inconsistency for node %d: "
-				 "parent_count=%d\n", phy_id, parent_count);
+			fw_err(card, "parent port inconsistency for node %d: "
+			       "parent_count=%d\n", phy_id, parent_count);
 			return NULL;
 		}
 
@@ -530,7 +530,6 @@ void fw_core_handle_bus_reset(struct fw_card *card, int node_id, int generation,
 	 */
 	if (!is_next_generation(generation, card->generation) &&
 	    card->local_node != NULL) {
-		fw_notify("skipped bus generations, destroying all nodes\n");
 		fw_destroy_nodes(card);
 		card->bm_retries = 0;
 	}
@@ -557,7 +556,7 @@ void fw_core_handle_bus_reset(struct fw_card *card, int node_id, int generation,
 	card->color++;
 
 	if (local_node == NULL) {
-		fw_error("topology build failed\n");
+		fw_err(card, "topology build failed\n");
 		/* FIXME: We need to issue a bus reset in this case. */
 	} else if (card->local_node == NULL) {
 		card->local_node = local_node;

drivers/firewire/core-transaction.c

@@ -565,7 +565,6 @@ int fw_core_add_address_handler(struct fw_address_handler *handler,
 				const struct fw_address_region *region)
 {
 	struct fw_address_handler *other;
-	unsigned long flags;
 	int ret = -EBUSY;
 
 	if (region->start & 0xffff000000000003ULL ||
@@ -575,7 +574,7 @@ int fw_core_add_address_handler(struct fw_address_handler *handler,
 	    handler->length == 0)
 		return -EINVAL;
 
-	spin_lock_irqsave(&address_handler_lock, flags);
+	spin_lock_bh(&address_handler_lock);
 
 	handler->offset = region->start;
 	while (handler->offset + handler->length <= region->end) {
@@ -594,7 +593,7 @@ int fw_core_add_address_handler(struct fw_address_handler *handler,
 		}
 	}
 
-	spin_unlock_irqrestore(&address_handler_lock, flags);
+	spin_unlock_bh(&address_handler_lock);
 
 	return ret;
 }
@@ -602,14 +601,15 @@ EXPORT_SYMBOL(fw_core_add_address_handler);
 
 /**
  * fw_core_remove_address_handler() - unregister an address handler
+ *
+ * When fw_core_remove_address_handler() returns, @handler->callback() is
+ * guaranteed to not run on any CPU anymore.
  */
 void fw_core_remove_address_handler(struct fw_address_handler *handler)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&address_handler_lock, flags);
+	spin_lock_bh(&address_handler_lock);
 	list_del(&handler->link);
-	spin_unlock_irqrestore(&address_handler_lock, flags);
+	spin_unlock_bh(&address_handler_lock);
 }
 EXPORT_SYMBOL(fw_core_remove_address_handler);
 
@@ -770,7 +770,7 @@ static struct fw_request *allocate_request(struct fw_card *card,
 		break;
 
 	default:
-		fw_error("ERROR - corrupt request received - %08x %08x %08x\n",
+		fw_notice(card, "ERROR - corrupt request received - %08x %08x %08x\n",
 			 p->header[0], p->header[1], p->header[2]);
 		return NULL;
 	}
@@ -826,7 +826,6 @@ static void handle_exclusive_region_request(struct fw_card *card,
 					    unsigned long long offset)
 {
 	struct fw_address_handler *handler;
-	unsigned long flags;
 	int tcode, destination, source;
 
 	destination = HEADER_GET_DESTINATION(p->header[0]);
@@ -835,27 +834,19 @@ static void handle_exclusive_region_request(struct fw_card *card,
 	if (tcode == TCODE_LOCK_REQUEST)
 		tcode = 0x10 + HEADER_GET_EXTENDED_TCODE(p->header[3]);
 
-	spin_lock_irqsave(&address_handler_lock, flags);
+	spin_lock_bh(&address_handler_lock);
 	handler = lookup_enclosing_address_handler(&address_handler_list,
 						   offset, request->length);
-	spin_unlock_irqrestore(&address_handler_lock, flags);
-
-	/*
-	 * FIXME: lookup the fw_node corresponding to the sender of
-	 * this request and pass that to the address handler instead
-	 * of the node ID.  We may also want to move the address
-	 * allocations to fw_node so we only do this callback if the
-	 * upper layers registered it for this node.
-	 */
-
-	if (handler == NULL)
-		fw_send_response(card, request, RCODE_ADDRESS_ERROR);
-	else
+	if (handler)
 		handler->address_callback(card, request,
 					  tcode, destination, source,
 					  p->generation, offset,
 					  request->data, request->length,
 					  handler->callback_data);
+	spin_unlock_bh(&address_handler_lock);
+
+	if (!handler)
+		fw_send_response(card, request, RCODE_ADDRESS_ERROR);
 }
 
 static void handle_fcp_region_request(struct fw_card *card,
@@ -864,7 +855,6 @@ static void handle_fcp_region_request(struct fw_card *card,
 				      unsigned long long offset)
 {
 	struct fw_address_handler *handler;
-	unsigned long flags;
 	int tcode, destination, source;
 
 	if ((offset != (CSR_REGISTER_BASE | CSR_FCP_COMMAND) &&
@@ -886,7 +876,7 @@ static void handle_fcp_region_request(struct fw_card *card,
 		return;
 	}
 
-	spin_lock_irqsave(&address_handler_lock, flags);
+	spin_lock_bh(&address_handler_lock);
 	list_for_each_entry(handler, &address_handler_list, link) {
 		if (is_enclosing_handler(handler, offset, request->length))
 			handler->address_callback(card, NULL, tcode,
@@ -896,7 +886,7 @@ static void handle_fcp_region_request(struct fw_card *card,
 						  request->length,
 						  handler->callback_data);
 	}
-	spin_unlock_irqrestore(&address_handler_lock, flags);
+	spin_unlock_bh(&address_handler_lock);
 
 	fw_send_response(card, request, RCODE_COMPLETE);
 }
@@ -960,7 +950,7 @@ void fw_core_handle_response(struct fw_card *card, struct fw_packet *p)
 
 	if (&t->link == &card->transaction_list) {
  timed_out:
-		fw_notify("Unsolicited response (source %x, tlabel %x)\n",
+		fw_notice(card, "unsolicited response (source %x, tlabel %x)\n",
 			  source, tlabel);
 		return;
 	}

drivers/firewire/core.h

 #ifndef _FIREWIRE_CORE_H
 #define _FIREWIRE_CORE_H
 
+#include <linux/compiler.h>
+#include <linux/device.h>
 #include <linux/fs.h>
 #include <linux/list.h>
 #include <linux/idr.h>
@@ -23,6 +25,11 @@ struct fw_packet;
 
 /* -card */
 
+extern __printf(2, 3)
+void fw_err(const struct fw_card *card, const char *fmt, ...);
+extern __printf(2, 3)
+void fw_notice(const struct fw_card *card, const char *fmt, ...);
+
 /* bitfields within the PHY registers */
 #define PHY_LINK_ACTIVE		0x80
 #define PHY_CONTENDER		0x40
@@ -99,6 +106,8 @@ struct fw_card_driver {
 
 	void (*flush_queue_iso)(struct fw_iso_context *ctx);
 
+	int (*flush_iso_completions)(struct fw_iso_context *ctx);
+
 	int (*stop_iso)(struct fw_iso_context *ctx);
 };
 
@@ -141,6 +150,18 @@ extern struct rw_semaphore fw_device_rwsem;
 extern struct idr fw_device_idr;
 extern int fw_cdev_major;
 
+static inline struct fw_device *fw_device_get(struct fw_device *device)
+{
+	get_device(&device->device);
+
+	return device;
+}
+
+static inline void fw_device_put(struct fw_device *device)
+{
+	put_device(&device->device);
+}
+
 struct fw_device *fw_device_get_by_devt(dev_t devt);
 int fw_device_set_broadcast_channel(struct device *dev, void *gen);
 void fw_node_event(struct fw_card *card, struct fw_node *node, int event);

drivers/firewire/net.c

@@ -256,8 +256,8 @@ static int fwnet_header_rebuild(struct sk_buff *skb)
 	if (get_unaligned_be16(&h->h_proto) == ETH_P_IP)
 		return arp_find((unsigned char *)&h->h_dest, skb);
 
-	fw_notify("%s: unable to resolve type %04x addresses\n",
-		  skb->dev->name, be16_to_cpu(h->h_proto));
+	dev_notice(&skb->dev->dev, "unable to resolve type %04x addresses\n",
+		   be16_to_cpu(h->h_proto));
 	return 0;
 }
 
@@ -369,7 +369,7 @@ static struct fwnet_fragment_info *fwnet_frag_new(
 
 	new = kmalloc(sizeof(*new), GFP_ATOMIC);
 	if (!new) {
-		fw_error("out of memory\n");
+		dev_err(&pd->skb->dev->dev, "out of memory\n");
 		return NULL;
 	}
 
@@ -414,7 +414,7 @@ static struct fwnet_partial_datagram *fwnet_pd_new(struct net_device *net,
 fail_w_new:
 	kfree(new);
 fail:
-	fw_error("out of memory\n");
+	dev_err(&net->dev, "out of memory\n");
 
 	return NULL;
 }
@@ -554,7 +554,7 @@ static int fwnet_finish_incoming_packet(struct net_device *net,
 		sspd = arp1394->sspd;
 		/* Sanity check.  OS X 10.3 PPC reportedly sends 131. */
 		if (sspd > SCODE_3200) {
-			fw_notify("sspd %x out of range\n", sspd);
+			dev_notice(&net->dev, "sspd %x out of range\n", sspd);
 			sspd = SCODE_3200;
 		}
 		max_payload = fwnet_max_payload(arp1394->max_rec, sspd);
@@ -574,8 +574,9 @@ static int fwnet_finish_incoming_packet(struct net_device *net,
 		spin_unlock_irqrestore(&dev->lock, flags);
 
 		if (!peer) {
-			fw_notify("No peer for ARP packet from %016llx\n",
-				  (unsigned long long)peer_guid);
+			dev_notice(&net->dev,
+				   "no peer for ARP packet from %016llx\n",
+				   (unsigned long long)peer_guid);
 			goto no_peer;
 		}
 
@@ -691,7 +692,7 @@ static int fwnet_incoming_packet(struct fwnet_device *dev, __be32 *buf, int len,
 
 		skb = dev_alloc_skb(len + net->hard_header_len + 15);
 		if (unlikely(!skb)) {
-			fw_error("out of memory\n");
+			dev_err(&net->dev, "out of memory\n");
 			net->stats.rx_dropped++;
 
 			return -ENOMEM;
@@ -814,7 +815,7 @@ static void fwnet_receive_packet(struct fw_card *card, struct fw_request *r,
 		rcode = RCODE_TYPE_ERROR;
 	else if (fwnet_incoming_packet(dev, payload, length,
 				       source, generation, false) != 0) {
-		fw_error("Incoming packet failure\n");
+		dev_err(&dev->netdev->dev, "incoming packet failure\n");
 		rcode = RCODE_CONFLICT_ERROR;
 	} else
 		rcode = RCODE_COMPLETE;
@@ -881,7 +882,7 @@ static void fwnet_receive_broadcast(struct fw_iso_context *context,
 	if (retval >= 0)
 		fw_iso_context_queue_flush(dev->broadcast_rcv_context);
 	else
-		fw_error("requeue failed\n");
+		dev_err(&dev->netdev->dev, "requeue failed\n");
 }
 
 static struct kmem_cache *fwnet_packet_task_cache;
@@ -936,9 +937,10 @@ static void fwnet_transmit_packet_done(struct fwnet_packet_task *ptask)
 		case RFC2374_HDR_LASTFRAG:
 		case RFC2374_HDR_UNFRAG:
 		default:
-			fw_error("Outstanding packet %x lf %x, header %x,%x\n",
-				 ptask->outstanding_pkts, lf, ptask->hdr.w0,
-				 ptask->hdr.w1);
+			dev_err(&dev->netdev->dev,
+				"outstanding packet %x lf %x, header %x,%x\n",
+				ptask->outstanding_pkts, lf, ptask->hdr.w0,
+				ptask->hdr.w1);
 			BUG();
 
 		case RFC2374_HDR_FIRSTFRAG:
@@ -1010,8 +1012,9 @@ static void fwnet_write_complete(struct fw_card *card, int rcode,
 		fwnet_transmit_packet_failed(ptask);
 
 		if (printk_timed_ratelimit(&j,  1000) || rcode != last_rcode) {
-			fw_error("fwnet_write_complete: "
-				"failed: %x (skipped %d)\n", rcode, errors_skipped);
+			dev_err(&ptask->dev->netdev->dev,
+				"fwnet_write_complete failed: %x (skipped %d)\n",
+				rcode, errors_skipped);
 
 			errors_skipped = 0;
 			last_rcode = rcode;
@@ -1539,14 +1542,12 @@ static int fwnet_probe(struct device *_dev)
 	put_unaligned_be64(card->guid, net->dev_addr);
 	put_unaligned_be64(~0ULL, net->broadcast);
 	ret = register_netdev(net);
-	if (ret) {
-		fw_error("Cannot register the driver\n");
+	if (ret)
 		goto out;
-	}
 
 	list_add_tail(&dev->dev_link, &fwnet_device_list);
-	fw_notify("%s: IPv4 over FireWire on device %016llx\n",
-		  net->name, (unsigned long long)card->guid);
+	dev_notice(&net->dev, "IPv4 over IEEE 1394 on card %s\n",
+		   dev_name(card->device));
  have_dev:
 	ret = fwnet_add_peer(dev, unit, device);
 	if (ret && allocated_netdev) {
@@ -1648,7 +1649,7 @@ static const struct ieee1394_device_id fwnet_id_table[] = {
 static struct fw_driver fwnet_driver = {
 	.driver = {
 		.owner  = THIS_MODULE,
-		.name   = "net",
+		.name   = KBUILD_MODNAME,
 		.bus    = &fw_bus_type,
 		.probe  = fwnet_probe,
 		.remove = fwnet_remove,

drivers/firewire/nosy.c

@@ -36,7 +36,7 @@
 #include <linux/timex.h>
 #include <linux/uaccess.h>
 #include <linux/wait.h>
-
+#include <linux/dma-mapping.h>
 #include <linux/atomic.h>
 #include <asm/byteorder.h>
 
@@ -536,7 +536,7 @@ add_card(struct pci_dev *dev, const struct pci_device_id *unused)
 	u32 p, end;
 	int ret, i;
 
-	if (pci_set_dma_mask(dev, 0xffffffff)) {
+	if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) {
 		dev_err(&dev->dev,
 		    "DMA address limits not supported for PCILynx hardware\n");
 		return -ENXIO;

drivers/firewire/ohci.c

@@ -170,10 +170,12 @@ struct context {
 struct iso_context {
 	struct fw_iso_context base;
 	struct context context;
-	int excess_bytes;
 	void *header;
 	size_t header_length;
-
+	unsigned long flushing_completions;
+	u32 mc_buffer_bus;
+	u16 mc_completed;
+	u16 last_timestamp;
 	u8 sync;
 	u8 tags;
 };
@@ -338,8 +340,6 @@ MODULE_PARM_DESC(quirks, "Chip quirks (default = 0"
 #define OHCI_PARAM_DEBUG_IRQS		4
 #define OHCI_PARAM_DEBUG_BUSRESETS	8 /* only effective before chip init */
 
-#ifdef CONFIG_FIREWIRE_OHCI_DEBUG
-
 static int param_debug;
 module_param_named(debug, param_debug, int, 0644);
 MODULE_PARM_DESC(debug, "Verbose logging (default = 0"
@@ -349,7 +349,7 @@ MODULE_PARM_DESC(debug, "Verbose logging (default = 0"
 	", busReset events = "	__stringify(OHCI_PARAM_DEBUG_BUSRESETS)
 	", or a combination, or all = -1)");
 
-static void log_irqs(u32 evt)
+static void log_irqs(struct fw_ohci *ohci, u32 evt)
 {
 	if (likely(!(param_debug &
 			(OHCI_PARAM_DEBUG_IRQS | OHCI_PARAM_DEBUG_BUSRESETS))))
@@ -359,7 +359,8 @@ static void log_irqs(u32 evt)
 	    !(evt & OHCI1394_busReset))
 		return;
 
-	fw_notify("IRQ %08x%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", evt,
+	dev_notice(ohci->card.device,
+	    "IRQ %08x%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", evt,
 	    evt & OHCI1394_selfIDComplete	? " selfID"		: "",
 	    evt & OHCI1394_RQPkt		? " AR_req"		: "",
 	    evt & OHCI1394_RSPkt		? " AR_resp"		: "",
@@ -398,24 +399,29 @@ static char _p(u32 *s, int shift)
 	return port[*s >> shift & 3];
 }
 
-static void log_selfids(int node_id, int generation, int self_id_count, u32 *s)
+static void log_selfids(struct fw_ohci *ohci, int generation, int self_id_count)
 {
+	u32 *s;
+
 	if (likely(!(param_debug & OHCI_PARAM_DEBUG_SELFIDS)))
 		return;
 
-	fw_notify("%d selfIDs, generation %d, local node ID %04x\n",
-		  self_id_count, generation, node_id);
+	dev_notice(ohci->card.device,
+		   "%d selfIDs, generation %d, local node ID %04x\n",
+		   self_id_count, generation, ohci->node_id);
 
-	for (; self_id_count--; ++s)
+	for (s = ohci->self_id_buffer; self_id_count--; ++s)
 		if ((*s & 1 << 23) == 0)
-			fw_notify("selfID 0: %08x, phy %d [%c%c%c] "
+			dev_notice(ohci->card.device,
+			    "selfID 0: %08x, phy %d [%c%c%c] "
 			    "%s gc=%d %s %s%s%s\n",
 			    *s, *s >> 24 & 63, _p(s, 6), _p(s, 4), _p(s, 2),
 			    speed[*s >> 14 & 3], *s >> 16 & 63,
 			    power[*s >> 8 & 7], *s >> 22 & 1 ? "L" : "",
 			    *s >> 11 & 1 ? "c" : "", *s & 2 ? "i" : "");
 		else
-			fw_notify("selfID n: %08x, phy %d [%c%c%c%c%c%c%c%c]\n",
+			dev_notice(ohci->card.device,
+			    "selfID n: %08x, phy %d [%c%c%c%c%c%c%c%c]\n",
 			    *s, *s >> 24 & 63,
 			    _p(s, 16), _p(s, 14), _p(s, 12), _p(s, 10),
 			    _p(s,  8), _p(s,  6), _p(s,  4), _p(s,  2));
@@ -451,7 +457,8 @@ static const char *tcodes[] = {
 	[0xe] = "link internal",	[0xf] = "-reserved-",
 };
 
-static void log_ar_at_event(char dir, int speed, u32 *header, int evt)
+static void log_ar_at_event(struct fw_ohci *ohci,
+			    char dir, int speed, u32 *header, int evt)
 {
 	int tcode = header[0] >> 4 & 0xf;
 	char specific[12];
@@ -463,8 +470,9 @@ static void log_ar_at_event(char dir, int speed, u32 *header, int evt)
 			evt = 0x1f;
 
 	if (evt == OHCI1394_evt_bus_reset) {
-		fw_notify("A%c evt_bus_reset, generation %d\n",
-		    dir, (header[2] >> 16) & 0xff);
+		dev_notice(ohci->card.device,
+			   "A%c evt_bus_reset, generation %d\n",
+			   dir, (header[2] >> 16) & 0xff);
 		return;
 	}
 
@@ -483,39 +491,35 @@ static void log_ar_at_event(char dir, int speed, u32 *header, int evt)
 
 	switch (tcode) {
 	case 0xa:
-		fw_notify("A%c %s, %s\n", dir, evts[evt], tcodes[tcode]);
+		dev_notice(ohci->card.device,
+			   "A%c %s, %s\n",
+			   dir, evts[evt], tcodes[tcode]);
 		break;
 	case 0xe:
-		fw_notify("A%c %s, PHY %08x %08x\n",
-			  dir, evts[evt], header[1], header[2]);
+		dev_notice(ohci->card.device,
+			   "A%c %s, PHY %08x %08x\n",
+			   dir, evts[evt], header[1], header[2]);
 		break;
 	case 0x0: case 0x1: case 0x4: case 0x5: case 0x9:
-		fw_notify("A%c spd %x tl %02x, "
-		    "%04x -> %04x, %s, "
-		    "%s, %04x%08x%s\n",
-		    dir, speed, header[0] >> 10 & 0x3f,
-		    header[1] >> 16, header[0] >> 16, evts[evt],
-		    tcodes[tcode], header[1] & 0xffff, header[2], specific);
+		dev_notice(ohci->card.device,
+			   "A%c spd %x tl %02x, "
+			   "%04x -> %04x, %s, "
+			   "%s, %04x%08x%s\n",
+			   dir, speed, header[0] >> 10 & 0x3f,
+			   header[1] >> 16, header[0] >> 16, evts[evt],
+			   tcodes[tcode], header[1] & 0xffff, header[2], specific);
 		break;
 	default:
-		fw_notify("A%c spd %x tl %02x, "
-		    "%04x -> %04x, %s, "
-		    "%s%s\n",
-		    dir, speed, header[0] >> 10 & 0x3f,
-		    header[1] >> 16, header[0] >> 16, evts[evt],
-		    tcodes[tcode], specific);
+		dev_notice(ohci->card.device,
+			   "A%c spd %x tl %02x, "
+			   "%04x -> %04x, %s, "
+			   "%s%s\n",
+			   dir, speed, header[0] >> 10 & 0x3f,
+			   header[1] >> 16, header[0] >> 16, evts[evt],
+			   tcodes[tcode], specific);
 	}
 }
 
-#else
-
-#define param_debug 0
-static inline void log_irqs(u32 evt) {}
-static inline void log_selfids(int node_id, int generation, int self_id_count, u32 *s) {}
-static inline void log_ar_at_event(char dir, int speed, u32 *header, int evt) {}
-
-#endif /* CONFIG_FIREWIRE_OHCI_DEBUG */
-
 static inline void reg_write(const struct fw_ohci *ohci, int offset, u32 data)
 {
 	writel(data, ohci->registers + offset);
@@ -559,7 +563,7 @@ static int read_phy_reg(struct fw_ohci *ohci, int addr)
 		if (i >= 3)
 			msleep(1);
 	}
-	fw_error("failed to read phy reg\n");
+	dev_err(ohci->card.device, "failed to read phy reg\n");
 
 	return -EBUSY;
 }
@@ -581,7 +585,7 @@ static int write_phy_reg(const struct fw_ohci *ohci, int addr, u32 val)
 		if (i >= 3)
 			msleep(1);
 	}
-	fw_error("failed to write phy reg\n");
+	dev_err(ohci->card.device, "failed to write phy reg\n");
 
 	return -EBUSY;
 }
@@ -680,11 +684,14 @@ static void ar_context_release(struct ar_context *ctx)
 
 static void ar_context_abort(struct ar_context *ctx, const char *error_msg)
 {
-	if (reg_read(ctx->ohci, CONTROL_CLEAR(ctx->regs)) & CONTEXT_RUN) {
-		reg_write(ctx->ohci, CONTROL_CLEAR(ctx->regs), CONTEXT_RUN);
-		flush_writes(ctx->ohci);
+	struct fw_ohci *ohci = ctx->ohci;
+
+	if (reg_read(ohci, CONTROL_CLEAR(ctx->regs)) & CONTEXT_RUN) {
+		reg_write(ohci, CONTROL_CLEAR(ctx->regs), CONTEXT_RUN);
+		flush_writes(ohci);
 
-		fw_error("AR error: %s; DMA stopped\n", error_msg);
+		dev_err(ohci->card.device, "AR error: %s; DMA stopped\n",
+			error_msg);
 	}
 	/* FIXME: restart? */
 }
@@ -854,7 +861,7 @@ static __le32 *handle_ar_packet(struct ar_context *ctx, __le32 *buffer)
 	p.timestamp  = status & 0xffff;
 	p.generation = ohci->request_generation;
 
-	log_ar_at_event('R', p.speed, p.header, evt);
+	log_ar_at_event(ohci, 'R', p.speed, p.header, evt);
 
 	/*
 	 * Several controllers, notably from NEC and VIA, forget to
@@ -1226,21 +1233,22 @@ static void context_append(struct context *ctx,
 
 static void context_stop(struct context *ctx)
 {
+	struct fw_ohci *ohci = ctx->ohci;
 	u32 reg;
 	int i;
 
-	reg_write(ctx->ohci, CONTROL_CLEAR(ctx->regs), CONTEXT_RUN);
+	reg_write(ohci, CONTROL_CLEAR(ctx->regs), CONTEXT_RUN);
 	ctx->running = false;
 
 	for (i = 0; i < 1000; i++) {
-		reg = reg_read(ctx->ohci, CONTROL_SET(ctx->regs));
+		reg = reg_read(ohci, CONTROL_SET(ctx->regs));
 		if ((reg & CONTEXT_ACTIVE) == 0)
 			return;
 
 		if (i)
 			udelay(10);
 	}
-	fw_error("Error: DMA context still active (0x%08x)\n", reg);
+	dev_err(ohci->card.device, "DMA context still active (0x%08x)\n", reg);
 }
 
 struct driver_data {
@@ -1420,7 +1428,7 @@ static int handle_at_packet(struct context *context,
 	evt = le16_to_cpu(last->transfer_status) & 0x1f;
 	packet->timestamp = le16_to_cpu(last->res_count);
 
-	log_ar_at_event('T', packet->speed, packet->header, evt);
+	log_ar_at_event(ohci, 'T', packet->speed, packet->header, evt);
 
 	switch (evt) {
 	case OHCI1394_evt_timeout:
@@ -1549,7 +1557,7 @@ static void handle_local_lock(struct fw_ohci *ohci,
 			goto out;
 		}
 
-	fw_error("swap not done (CSR lock timeout)\n");
+	dev_err(ohci->card.device, "swap not done (CSR lock timeout)\n");
 	fw_fill_response(&response, packet->header, RCODE_BUSY, NULL, 0);
 
  out:
@@ -1623,15 +1631,10 @@ static void detect_dead_context(struct fw_ohci *ohci,
 	u32 ctl;
 
 	ctl = reg_read(ohci, CONTROL_SET(regs));
-	if (ctl & CONTEXT_DEAD) {
-#ifdef CONFIG_FIREWIRE_OHCI_DEBUG
-		fw_error("DMA context %s has stopped, error code: %s\n",
-			 name, evts[ctl & 0x1f]);
-#else
-		fw_error("DMA context %s has stopped, error code: %#x\n",
-			 name, ctl & 0x1f);
-#endif
-	}
+	if (ctl & CONTEXT_DEAD)
+		dev_err(ohci->card.device,
+			"DMA context %s has stopped, error code: %s\n",
+			name, evts[ctl & 0x1f]);
 }
 
 static void handle_dead_contexts(struct fw_ohci *ohci)
@@ -1781,7 +1784,8 @@ static int find_and_insert_self_id(struct fw_ohci *ohci, int self_id_count)
 
 	reg = reg_read(ohci, OHCI1394_NodeID);
 	if (!(reg & OHCI1394_NodeID_idValid)) {
-		fw_notify("node ID not valid, new bus reset in progress\n");
+		dev_notice(ohci->card.device,
+			   "node ID not valid, new bus reset in progress\n");
 		return -EBUSY;
 	}
 	self_id |= ((reg & 0x3f) << 24); /* phy ID */
@@ -1827,11 +1831,12 @@ static void bus_reset_work(struct work_struct *work)
 
 	reg = reg_read(ohci, OHCI1394_NodeID);
 	if (!(reg & OHCI1394_NodeID_idValid)) {
-		fw_notify("node ID not valid, new bus reset in progress\n");
+		dev_notice(ohci->card.device,
+			   "node ID not valid, new bus reset in progress\n");
 		return;
 	}
 	if ((reg & OHCI1394_NodeID_nodeNumber) == 63) {
-		fw_notify("malconfigured bus\n");
+		dev_notice(ohci->card.device, "malconfigured bus\n");
 		return;
 	}
 	ohci->node_id = reg & (OHCI1394_NodeID_busNumber |
@@ -1845,7 +1850,7 @@ static void bus_reset_work(struct work_struct *work)
 
 	reg = reg_read(ohci, OHCI1394_SelfIDCount);
 	if (reg & OHCI1394_SelfIDCount_selfIDError) {
-		fw_notify("inconsistent self IDs\n");
+		dev_notice(ohci->card.device, "inconsistent self IDs\n");
 		return;
 	}
 	/*
@@ -1857,7 +1862,7 @@ static void bus_reset_work(struct work_struct *work)
 	self_id_count = (reg >> 3) & 0xff;
 
 	if (self_id_count > 252) {
-		fw_notify("inconsistent self IDs\n");
+		dev_notice(ohci->card.device, "inconsistent self IDs\n");
 		return;
 	}
 
@@ -1875,11 +1880,13 @@ static void bus_reset_work(struct work_struct *work)
 			 */
 			if (cond_le32_to_cpu(ohci->self_id_cpu[i])
 							== 0xffff008f) {
-				fw_notify("ignoring spurious self IDs\n");
+				dev_notice(ohci->card.device,
+					   "ignoring spurious self IDs\n");
 				self_id_count = j;
 				break;
 			} else {
-				fw_notify("inconsistent self IDs\n");
+				dev_notice(ohci->card.device,
+					   "inconsistent self IDs\n");
 				return;
 			}
 		}
@@ -1890,13 +1897,14 @@ static void bus_reset_work(struct work_struct *work)
 	if (ohci->quirks & QUIRK_TI_SLLZ059) {
 		self_id_count = find_and_insert_self_id(ohci, self_id_count);
 		if (self_id_count < 0) {
-			fw_notify("could not construct local self ID\n");
+			dev_notice(ohci->card.device,
+				   "could not construct local self ID\n");
 			return;
 		}
 	}
 
 	if (self_id_count == 0) {
-		fw_notify("inconsistent self IDs\n");
+		dev_notice(ohci->card.device, "inconsistent self IDs\n");
 		return;
 	}
 	rmb();
@@ -1917,8 +1925,8 @@ static void bus_reset_work(struct work_struct *work)
 
 	new_generation = (reg_read(ohci, OHCI1394_SelfIDCount) >> 16) & 0xff;
 	if (new_generation != generation) {
-		fw_notify("recursive bus reset detected, "
-			  "discarding self ids\n");
+		dev_notice(ohci->card.device,
+			   "new bus reset, discarding self ids\n");
 		return;
 	}
 
@@ -1989,8 +1997,7 @@ static void bus_reset_work(struct work_struct *work)
 		dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
 				  free_rom, free_rom_bus);
 
-	log_selfids(ohci->node_id, generation,
-		    self_id_count, ohci->self_id_buffer);
+	log_selfids(ohci, generation, self_id_count);
 
 	fw_core_handle_bus_reset(&ohci->card, ohci->node_id, generation,
 				 self_id_count, ohci->self_id_buffer,
@@ -2015,7 +2022,7 @@ static irqreturn_t irq_handler(int irq, void *data)
 	 */
 	reg_write(ohci, OHCI1394_IntEventClear,
 		  event & ~(OHCI1394_busReset | OHCI1394_postedWriteErr));
-	log_irqs(event);
+	log_irqs(ohci, event);
 
 	if (event & OHCI1394_selfIDComplete)
 		queue_work(fw_workqueue, &ohci->bus_reset_work);
@@ -2057,8 +2064,7 @@ static irqreturn_t irq_handler(int irq, void *data)
 	}
 
 	if (unlikely(event & OHCI1394_regAccessFail))
-		fw_error("Register access failure - "
-			 "please notify linux1394-devel@lists.sf.net\n");
+		dev_err(ohci->card.device, "register access failure\n");
 
 	if (unlikely(event & OHCI1394_postedWriteErr)) {
 		reg_read(ohci, OHCI1394_PostedWriteAddressHi);
@@ -2066,12 +2072,13 @@ static irqreturn_t irq_handler(int irq, void *data)
 		reg_write(ohci, OHCI1394_IntEventClear,
 			  OHCI1394_postedWriteErr);
 		if (printk_ratelimit())
-			fw_error("PCI posted write error\n");
+			dev_err(ohci->card.device, "PCI posted write error\n");
 	}
 
 	if (unlikely(event & OHCI1394_cycleTooLong)) {
 		if (printk_ratelimit())
-			fw_notify("isochronous cycle too long\n");
+			dev_notice(ohci->card.device,
+				   "isochronous cycle too long\n");
 		reg_write(ohci, OHCI1394_LinkControlSet,
 			  OHCI1394_LinkControl_cycleMaster);
 	}
@@ -2084,7 +2091,8 @@ static irqreturn_t irq_handler(int irq, void *data)
 		 * them at least two cycles later.  (FIXME?)
 		 */
 		if (printk_ratelimit())
-			fw_notify("isochronous cycle inconsistent\n");
+			dev_notice(ohci->card.device,
+				   "isochronous cycle inconsistent\n");
 	}
 
 	if (unlikely(event & OHCI1394_unrecoverableError))
@@ -2211,7 +2219,7 @@ static int ohci_enable(struct fw_card *card,
 	int i, ret;
 
 	if (software_reset(ohci)) {
-		fw_error("Failed to reset ohci card.\n");
+		dev_err(card->device, "failed to reset ohci card\n");
 		return -EBUSY;
 	}
 
@@ -2235,7 +2243,7 @@ static int ohci_enable(struct fw_card *card,
 	}
 
 	if (!lps) {
-		fw_error("Failed to set Link Power Status\n");
+		dev_err(card->device, "failed to set Link Power Status\n");
 		return -EIO;
 	}
 
@@ -2244,7 +2252,7 @@ static int ohci_enable(struct fw_card *card,
 		if (ret < 0)
 			return ret;
 		if (ret)
-			fw_notify("local TSB41BA3D phy\n");
+			dev_notice(card->device, "local TSB41BA3D phy\n");
 		else
 			ohci->quirks &= ~QUIRK_TI_SLLZ059;
 	}
@@ -2344,7 +2352,8 @@ static int ohci_enable(struct fw_card *card,
 	if (request_irq(dev->irq, irq_handler,
 			pci_dev_msi_enabled(dev) ? 0 : IRQF_SHARED,
 			ohci_driver_name, ohci)) {
-		fw_error("Failed to allocate interrupt %d.\n", dev->irq);
+		dev_err(card->device, "failed to allocate interrupt %d\n",
+			dev->irq);
 		pci_disable_msi(dev);
 
 		if (config_rom) {
@@ -2509,7 +2518,7 @@ static int ohci_cancel_packet(struct fw_card *card, struct fw_packet *packet)
 		dma_unmap_single(ohci->card.device, packet->payload_bus,
 				 packet->payload_length, DMA_TO_DEVICE);
 
-	log_ar_at_event('T', packet->speed, packet->header, 0x20);
+	log_ar_at_event(ohci, 'T', packet->speed, packet->header, 0x20);
 	driver_data->packet = NULL;
 	packet->ack = RCODE_CANCELLED;
 	packet->callback(packet, &ohci->card, packet->ack);
@@ -2674,25 +2683,35 @@ static void ohci_write_csr(struct fw_card *card, int csr_offset, u32 value)
 	}
 }
 
-static void copy_iso_headers(struct iso_context *ctx, void *p)
+static void flush_iso_completions(struct iso_context *ctx)
 {
-	int i = ctx->header_length;
+	ctx->base.callback.sc(&ctx->base, ctx->last_timestamp,
+			      ctx->header_length, ctx->header,
+			      ctx->base.callback_data);
+	ctx->header_length = 0;
+}
 
-	if (i + ctx->base.header_size > PAGE_SIZE)
-		return;
+static void copy_iso_headers(struct iso_context *ctx, const u32 *dma_hdr)
+{
+	u32 *ctx_hdr;
+
+	if (ctx->header_length + ctx->base.header_size > PAGE_SIZE)
+		flush_iso_completions(ctx);
+
+	ctx_hdr = ctx->header + ctx->header_length;
+	ctx->last_timestamp = (u16)le32_to_cpu((__force __le32)dma_hdr[0]);
 
 	/*
-	 * The iso header is byteswapped to little endian by
-	 * the controller, but the remaining header quadlets
-	 * are big endian.  We want to present all the headers
-	 * as big endian, so we have to swap the first quadlet.
+	 * The two iso header quadlets are byteswapped to little
+	 * endian by the controller, but we want to present them
+	 * as big endian for consistency with the bus endianness.
 	 */
 	if (ctx->base.header_size > 0)
-		*(u32 *) (ctx->header + i) = __swab32(*(u32 *) (p + 4));
+		ctx_hdr[0] = swab32(dma_hdr[1]); /* iso packet header */
 	if (ctx->base.header_size > 4)
-		*(u32 *) (ctx->header + i + 4) = __swab32(*(u32 *) p);
+		ctx_hdr[1] = swab32(dma_hdr[0]); /* timestamp */
 	if (ctx->base.header_size > 8)
-		memcpy(ctx->header + i + 8, p + 8, ctx->base.header_size - 8);
+		memcpy(&ctx_hdr[2], &dma_hdr[2], ctx->base.header_size - 8);
 	ctx->header_length += ctx->base.header_size;
 }
 
@@ -2704,8 +2723,6 @@ static int handle_ir_packet_per_buffer(struct context *context,
 		container_of(context, struct iso_context, context);
 	struct descriptor *pd;
 	u32 buffer_dma;
-	__le32 *ir_header;
-	void *p;
 
 	for (pd = d; pd <= last; pd++)
 		if (pd->transfer_status)
@@ -2724,17 +2741,10 @@ static int handle_ir_packet_per_buffer(struct context *context,
 					      DMA_FROM_DEVICE);
 	}
 
-	p = last + 1;
-	copy_iso_headers(ctx, p);
+	copy_iso_headers(ctx, (u32 *) (last + 1));
 
-	if (le16_to_cpu(last->control) & DESCRIPTOR_IRQ_ALWAYS) {
-		ir_header = (__le32 *) p;
-		ctx->base.callback.sc(&ctx->base,
-				      le32_to_cpu(ir_header[0]) & 0xffff,
-				      ctx->header_length, ctx->header,
-				      ctx->base.callback_data);
-		ctx->header_length = 0;
-	}
+	if (last->control & cpu_to_le16(DESCRIPTOR_IRQ_ALWAYS))
+		flush_iso_completions(ctx);
 
 	return 1;
 }
@@ -2746,29 +2756,51 @@ static int handle_ir_buffer_fill(struct context *context,
 {
 	struct iso_context *ctx =
 		container_of(context, struct iso_context, context);
+	unsigned int req_count, res_count, completed;
 	u32 buffer_dma;
 
-	if (!last->transfer_status)
+	req_count = le16_to_cpu(last->req_count);
+	res_count = le16_to_cpu(ACCESS_ONCE(last->res_count));
+	completed = req_count - res_count;
+	buffer_dma = le32_to_cpu(last->data_address);
+
+	if (completed > 0) {
+		ctx->mc_buffer_bus = buffer_dma;
+		ctx->mc_completed = completed;
+	}
+
+	if (res_count != 0)
 		/* Descriptor(s) not done yet, stop iteration */
 		return 0;
 
-	buffer_dma = le32_to_cpu(last->data_address);
 	dma_sync_single_range_for_cpu(context->ohci->card.device,
 				      buffer_dma & PAGE_MASK,
 				      buffer_dma & ~PAGE_MASK,
-				      le16_to_cpu(last->req_count),
-				      DMA_FROM_DEVICE);
+				      completed, DMA_FROM_DEVICE);
 
-	if (le16_to_cpu(last->control) & DESCRIPTOR_IRQ_ALWAYS)
+	if (last->control & cpu_to_le16(DESCRIPTOR_IRQ_ALWAYS)) {
 		ctx->base.callback.mc(&ctx->base,
-				      le32_to_cpu(last->data_address) +
-				      le16_to_cpu(last->req_count) -
-				      le16_to_cpu(last->res_count),
+				      buffer_dma + completed,
 				      ctx->base.callback_data);
+		ctx->mc_completed = 0;
+	}
 
 	return 1;
 }
 
+static void flush_ir_buffer_fill(struct iso_context *ctx)
+{
+	dma_sync_single_range_for_cpu(ctx->context.ohci->card.device,
+				      ctx->mc_buffer_bus & PAGE_MASK,
+				      ctx->mc_buffer_bus & ~PAGE_MASK,
+				      ctx->mc_completed, DMA_FROM_DEVICE);
+
+	ctx->base.callback.mc(&ctx->base,
+			      ctx->mc_buffer_bus + ctx->mc_completed,
+			      ctx->base.callback_data);
+	ctx->mc_completed = 0;
+}
+
 static inline void sync_it_packet_for_cpu(struct context *context,
 					  struct descriptor *pd)
 {
@@ -2812,8 +2844,8 @@ static int handle_it_packet(struct context *context,
 {
 	struct iso_context *ctx =
 		container_of(context, struct iso_context, context);
-	int i;
 	struct descriptor *pd;
+	__be32 *ctx_hdr;
 
 	for (pd = d; pd <= last; pd++)
 		if (pd->transfer_status)
@@ -2824,20 +2856,19 @@ static int handle_it_packet(struct context *context,
 
 	sync_it_packet_for_cpu(context, d);
 
-	i = ctx->header_length;
-	if (i + 4 < PAGE_SIZE) {
-		/* Present this value as big-endian to match the receive code */
-		*(__be32 *)(ctx->header + i) = cpu_to_be32(
-				((u32)le16_to_cpu(pd->transfer_status) << 16) |
-				le16_to_cpu(pd->res_count));
-		ctx->header_length += 4;
-	}
-	if (le16_to_cpu(last->control) & DESCRIPTOR_IRQ_ALWAYS) {
-		ctx->base.callback.sc(&ctx->base, le16_to_cpu(last->res_count),
-				      ctx->header_length, ctx->header,
-				      ctx->base.callback_data);
-		ctx->header_length = 0;
-	}
+	if (ctx->header_length + 4 > PAGE_SIZE)
+		flush_iso_completions(ctx);
+
+	ctx_hdr = ctx->header + ctx->header_length;
+	ctx->last_timestamp = le16_to_cpu(last->res_count);
+	/* Present this value as big-endian to match the receive code */
+	*ctx_hdr = cpu_to_be32((le16_to_cpu(pd->transfer_status) << 16) |
+			       le16_to_cpu(pd->res_count));
+	ctx->header_length += 4;
+
+	if (last->control & cpu_to_le16(DESCRIPTOR_IRQ_ALWAYS))
+		flush_iso_completions(ctx);
+
 	return 1;
 }
 
@@ -2924,8 +2955,10 @@ static struct fw_iso_context *ohci_allocate_iso_context(struct fw_card *card,
 	if (ret < 0)
 		goto out_with_header;
 
-	if (type == FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL)
+	if (type == FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL) {
 		set_multichannel_mask(ohci, 0);
+		ctx->mc_completed = 0;
+	}
 
 	return &ctx->base;
 
@@ -3387,6 +3420,39 @@ static void ohci_flush_queue_iso(struct fw_iso_context *base)
 	reg_write(ctx->ohci, CONTROL_SET(ctx->regs), CONTEXT_WAKE);
 }
 
+static int ohci_flush_iso_completions(struct fw_iso_context *base)
+{
+	struct iso_context *ctx = container_of(base, struct iso_context, base);
+	int ret = 0;
+
+	tasklet_disable(&ctx->context.tasklet);
+
+	if (!test_and_set_bit_lock(0, &ctx->flushing_completions)) {
+		context_tasklet((unsigned long)&ctx->context);
+
+		switch (base->type) {
+		case FW_ISO_CONTEXT_TRANSMIT:
+		case FW_ISO_CONTEXT_RECEIVE:
+			if (ctx->header_length != 0)
+				flush_iso_completions(ctx);
+			break;
+		case FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL:
+			if (ctx->mc_completed != 0)
+				flush_ir_buffer_fill(ctx);
+			break;
+		default:
+			ret = -ENOSYS;
+		}
+
+		clear_bit_unlock(0, &ctx->flushing_completions);
+		smp_mb__after_clear_bit();
+	}
+
+	tasklet_enable(&ctx->context.tasklet);
+
+	return ret;
+}
+
 static const struct fw_card_driver ohci_driver = {
 	.enable			= ohci_enable,
 	.read_phy_reg		= ohci_read_phy_reg,
@@ -3404,6 +3470,7 @@ static const struct fw_card_driver ohci_driver = {
 	.set_iso_channels	= ohci_set_iso_channels,
 	.queue_iso		= ohci_queue_iso,
 	.flush_queue_iso	= ohci_flush_queue_iso,
+	.flush_iso_completions	= ohci_flush_iso_completions,
 	.start_iso		= ohci_start_iso,
 	.stop_iso		= ohci_stop_iso,
 };
@@ -3463,7 +3530,7 @@ static int __devinit pci_probe(struct pci_dev *dev,
 
 	err = pci_enable_device(dev);
 	if (err) {
-		fw_error("Failed to enable OHCI hardware\n");
+		dev_err(&dev->dev, "failed to enable OHCI hardware\n");
 		goto fail_free;
 	}
 
@@ -3478,13 +3545,13 @@ static int __devinit pci_probe(struct pci_dev *dev,
 
 	err = pci_request_region(dev, 0, ohci_driver_name);
 	if (err) {
-		fw_error("MMIO resource unavailable\n");
+		dev_err(&dev->dev, "MMIO resource unavailable\n");
 		goto fail_disable;
 	}
 
 	ohci->registers = pci_iomap(dev, 0, OHCI1394_REGISTER_SIZE);
 	if (ohci->registers == NULL) {
-		fw_error("Failed to remap registers\n");
+		dev_err(&dev->dev, "failed to remap registers\n");
 		err = -ENXIO;
 		goto fail_iomem;
 	}
@@ -3573,9 +3640,10 @@ static int __devinit pci_probe(struct pci_dev *dev,
 		goto fail_contexts;
 
 	version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff;
-	fw_notify("Added fw-ohci device %s, OHCI v%x.%x, "
+	dev_notice(&dev->dev,
+		  "added OHCI v%x.%x device as card %d, "
 		  "%d IR + %d IT contexts, quirks 0x%x\n",
-		  dev_name(&dev->dev), version >> 16, version & 0xff,
+		  version >> 16, version & 0xff, ohci->card.index,
 		  ohci->n_ir, ohci->n_it, ohci->quirks);
 
 	return 0;
@@ -3604,7 +3672,7 @@ static int __devinit pci_probe(struct pci_dev *dev,
 	pmac_ohci_off(dev);
  fail:
 	if (err == -ENOMEM)
-		fw_error("Out of memory\n");
+		dev_err(&dev->dev, "out of memory\n");
 
 	return err;
 }
@@ -3648,7 +3716,7 @@ static void pci_remove(struct pci_dev *dev)
 	kfree(ohci);
 	pmac_ohci_off(dev);
 
-	fw_notify("Removed fw-ohci device.\n");
+	dev_notice(&dev->dev, "removed fw-ohci device\n");
 }
 
 #ifdef CONFIG_PM
@@ -3662,12 +3730,12 @@ static int pci_suspend(struct pci_dev *dev, pm_message_t state)
 	pci_disable_msi(dev);
 	err = pci_save_state(dev);
 	if (err) {
-		fw_error("pci_save_state failed\n");
+		dev_err(&dev->dev, "pci_save_state failed\n");
 		return err;
 	}
 	err = pci_set_power_state(dev, pci_choose_state(dev, state));
 	if (err)
-		fw_error("pci_set_power_state failed with %d\n", err);
+		dev_err(&dev->dev, "pci_set_power_state failed with %d\n", err);
 	pmac_ohci_off(dev);
 
 	return 0;
@@ -3683,7 +3751,7 @@ static int pci_resume(struct pci_dev *dev)
 	pci_restore_state(dev);
 	err = pci_enable_device(dev);
 	if (err) {
-		fw_error("pci_enable_device failed\n");
+		dev_err(&dev->dev, "pci_enable_device failed\n");
 		return err;
 	}
 

drivers/firewire/sbp2.c

@@ -125,8 +125,6 @@ MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0"
 	", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE)
 	", or a combination)");
 
-static const char sbp2_driver_name[] = "sbp2";
-
 /*
  * We create one struct sbp2_logical_unit per SBP-2 Logical Unit Number Entry
  * and one struct scsi_device per sbp2_logical_unit.
@@ -165,7 +163,6 @@ static void sbp2_queue_work(struct sbp2_logical_unit *lu, unsigned long delay)
  */
 struct sbp2_target {
 	struct fw_unit *unit;
-	const char *bus_id;
 	struct list_head lu_list;
 
 	u64 management_agent_address;
@@ -181,11 +178,21 @@ struct sbp2_target {
 	int blocked;	/* ditto */
 };
 
-static struct fw_device *target_device(struct sbp2_target *tgt)
+static struct fw_device *target_parent_device(struct sbp2_target *tgt)
 {
 	return fw_parent_device(tgt->unit);
 }
 
+static const struct device *tgt_dev(const struct sbp2_target *tgt)
+{
+	return &tgt->unit->device;
+}
+
+static const struct device *lu_dev(const struct sbp2_logical_unit *lu)
+{
+	return &lu->tgt->unit->device;
+}
+
 /* Impossible login_id, to detect logout attempt before successful login */
 #define INVALID_LOGIN_ID 0x10000
 
@@ -211,6 +218,7 @@ static struct fw_device *target_device(struct sbp2_target *tgt)
 #define SBP2_CSR_UNIT_CHARACTERISTICS	0x3a
 #define SBP2_CSR_FIRMWARE_REVISION	0x3c
 #define SBP2_CSR_LOGICAL_UNIT_NUMBER	0x14
+#define SBP2_CSR_UNIT_UNIQUE_ID		0x8d
 #define SBP2_CSR_LOGICAL_UNIT_DIRECTORY	0xd4
 
 /* Management orb opcodes */
@@ -430,7 +438,8 @@ static void sbp2_status_write(struct fw_card *card, struct fw_request *request,
 		memcpy(status.data, payload + 8, length - 8);
 
 	if (STATUS_GET_SOURCE(status) == 2 || STATUS_GET_SOURCE(status) == 3) {
-		fw_notify("non-orb related status write, not handled\n");
+		dev_notice(lu_dev(lu),
+			   "non-ORB related status write, not handled\n");
 		fw_send_response(card, request, RCODE_COMPLETE);
 		return;
 	}
@@ -451,7 +460,7 @@ static void sbp2_status_write(struct fw_card *card, struct fw_request *request,
 		orb->callback(orb, &status);
 		kref_put(&orb->kref, free_orb); /* orb callback reference */
 	} else {
-		fw_error("status write for unknown orb\n");
+		dev_err(lu_dev(lu), "status write for unknown ORB\n");
 	}
 
 	fw_send_response(card, request, RCODE_COMPLETE);
@@ -492,7 +501,7 @@ static void complete_transaction(struct fw_card *card, int rcode,
 static void sbp2_send_orb(struct sbp2_orb *orb, struct sbp2_logical_unit *lu,
 			  int node_id, int generation, u64 offset)
 {
-	struct fw_device *device = target_device(lu->tgt);
+	struct fw_device *device = target_parent_device(lu->tgt);
 	struct sbp2_pointer orb_pointer;
 	unsigned long flags;
 
@@ -513,7 +522,7 @@ static void sbp2_send_orb(struct sbp2_orb *orb, struct sbp2_logical_unit *lu,
 
 static int sbp2_cancel_orbs(struct sbp2_logical_unit *lu)
 {
-	struct fw_device *device = target_device(lu->tgt);
+	struct fw_device *device = target_parent_device(lu->tgt);
 	struct sbp2_orb *orb, *next;
 	struct list_head list;
 	unsigned long flags;
@@ -552,7 +561,7 @@ static int sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id,
 				    int generation, int function,
 				    int lun_or_login_id, void *response)
 {
-	struct fw_device *device = target_device(lu->tgt);
+	struct fw_device *device = target_parent_device(lu->tgt);
 	struct sbp2_management_orb *orb;
 	unsigned int timeout;
 	int retval = -ENOMEM;
@@ -560,7 +569,7 @@ static int sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id,
 	if (function == SBP2_LOGOUT_REQUEST && fw_device_is_shutdown(device))
 		return 0;
 
-	orb = kzalloc(sizeof(*orb), GFP_ATOMIC);
+	orb = kzalloc(sizeof(*orb), GFP_NOIO);
 	if (orb == NULL)
 		return -ENOMEM;
 
@@ -612,20 +621,20 @@ static int sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id,
 
 	retval = -EIO;
 	if (sbp2_cancel_orbs(lu) == 0) {
-		fw_error("%s: orb reply timed out, rcode=0x%02x\n",
-			 lu->tgt->bus_id, orb->base.rcode);
+		dev_err(lu_dev(lu), "ORB reply timed out, rcode 0x%02x\n",
+			orb->base.rcode);
 		goto out;
 	}
 
 	if (orb->base.rcode != RCODE_COMPLETE) {
-		fw_error("%s: management write failed, rcode 0x%02x\n",
-			 lu->tgt->bus_id, orb->base.rcode);
+		dev_err(lu_dev(lu), "management write failed, rcode 0x%02x\n",
+			orb->base.rcode);
 		goto out;
 	}
 
 	if (STATUS_GET_RESPONSE(orb->status) != 0 ||
 	    STATUS_GET_SBP_STATUS(orb->status) != 0) {
-		fw_error("%s: error status: %d:%d\n", lu->tgt->bus_id,
+		dev_err(lu_dev(lu), "error status: %d:%d\n",
 			 STATUS_GET_RESPONSE(orb->status),
 			 STATUS_GET_SBP_STATUS(orb->status));
 		goto out;
@@ -648,7 +657,7 @@ static int sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id,
 
 static void sbp2_agent_reset(struct sbp2_logical_unit *lu)
 {
-	struct fw_device *device = target_device(lu->tgt);
+	struct fw_device *device = target_parent_device(lu->tgt);
 	__be32 d = 0;
 
 	fw_run_transaction(device->card, TCODE_WRITE_QUADLET_REQUEST,
@@ -665,7 +674,7 @@ static void complete_agent_reset_write_no_wait(struct fw_card *card,
 
 static void sbp2_agent_reset_no_wait(struct sbp2_logical_unit *lu)
 {
-	struct fw_device *device = target_device(lu->tgt);
+	struct fw_device *device = target_parent_device(lu->tgt);
 	struct fw_transaction *t;
 	static __be32 d;
 
@@ -704,7 +713,7 @@ static inline void sbp2_allow_block(struct sbp2_logical_unit *lu)
 static void sbp2_conditionally_block(struct sbp2_logical_unit *lu)
 {
 	struct sbp2_target *tgt = lu->tgt;
-	struct fw_card *card = target_device(tgt)->card;
+	struct fw_card *card = target_parent_device(tgt)->card;
 	struct Scsi_Host *shost =
 		container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
 	unsigned long flags;
@@ -728,7 +737,7 @@ static void sbp2_conditionally_block(struct sbp2_logical_unit *lu)
 static void sbp2_conditionally_unblock(struct sbp2_logical_unit *lu)
 {
 	struct sbp2_target *tgt = lu->tgt;
-	struct fw_card *card = target_device(tgt)->card;
+	struct fw_card *card = target_parent_device(tgt)->card;
 	struct Scsi_Host *shost =
 		container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
 	unsigned long flags;
@@ -753,7 +762,7 @@ static void sbp2_conditionally_unblock(struct sbp2_logical_unit *lu)
  */
 static void sbp2_unblock(struct sbp2_target *tgt)
 {
-	struct fw_card *card = target_device(tgt)->card;
+	struct fw_card *card = target_parent_device(tgt)->card;
 	struct Scsi_Host *shost =
 		container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
 	unsigned long flags;
@@ -794,7 +803,7 @@ static int sbp2_lun2int(u16 lun)
  */
 static void sbp2_set_busy_timeout(struct sbp2_logical_unit *lu)
 {
-	struct fw_device *device = target_device(lu->tgt);
+	struct fw_device *device = target_parent_device(lu->tgt);
 	__be32 d = cpu_to_be32(SBP2_CYCLE_LIMIT | SBP2_RETRY_LIMIT);
 
 	fw_run_transaction(device->card, TCODE_WRITE_QUADLET_REQUEST,
@@ -809,7 +818,7 @@ static void sbp2_login(struct work_struct *work)
 	struct sbp2_logical_unit *lu =
 		container_of(work, struct sbp2_logical_unit, work.work);
 	struct sbp2_target *tgt = lu->tgt;
-	struct fw_device *device = target_device(tgt);
+	struct fw_device *device = target_parent_device(tgt);
 	struct Scsi_Host *shost;
 	struct scsi_device *sdev;
 	struct sbp2_login_response response;
@@ -833,8 +842,8 @@ static void sbp2_login(struct work_struct *work)
 		if (lu->retries++ < 5) {
 			sbp2_queue_work(lu, DIV_ROUND_UP(HZ, 5));
 		} else {
-			fw_error("%s: failed to login to LUN %04x\n",
-				 tgt->bus_id, lu->lun);
+			dev_err(tgt_dev(tgt), "failed to login to LUN %04x\n",
+				lu->lun);
 			/* Let any waiting I/O fail from now on. */
 			sbp2_unblock(lu->tgt);
 		}
@@ -851,8 +860,8 @@ static void sbp2_login(struct work_struct *work)
 		      << 32) | be32_to_cpu(response.command_block_agent.low);
 	lu->login_id = be32_to_cpu(response.misc) & 0xffff;
 
-	fw_notify("%s: logged in to LUN %04x (%d retries)\n",
-		  tgt->bus_id, lu->lun, lu->retries);
+	dev_notice(tgt_dev(tgt), "logged in to LUN %04x (%d retries)\n",
+		   lu->lun, lu->retries);
 
 	/* set appropriate retry limit(s) in BUSY_TIMEOUT register */
 	sbp2_set_busy_timeout(lu);
@@ -919,7 +928,7 @@ static void sbp2_reconnect(struct work_struct *work)
 	struct sbp2_logical_unit *lu =
 		container_of(work, struct sbp2_logical_unit, work.work);
 	struct sbp2_target *tgt = lu->tgt;
-	struct fw_device *device = target_device(tgt);
+	struct fw_device *device = target_parent_device(tgt);
 	int generation, node_id, local_node_id;
 
 	if (fw_device_is_shutdown(device))
@@ -943,7 +952,7 @@ static void sbp2_reconnect(struct work_struct *work)
 		smp_rmb(); /* get current card generation */
 		if (generation == device->card->generation ||
 		    lu->retries++ >= 5) {
-			fw_error("%s: failed to reconnect\n", tgt->bus_id);
+			dev_err(tgt_dev(tgt), "failed to reconnect\n");
 			lu->retries = 0;
 			PREPARE_DELAYED_WORK(&lu->work, sbp2_login);
 		}
@@ -957,8 +966,8 @@ static void sbp2_reconnect(struct work_struct *work)
 	smp_wmb();	  /* node IDs must not be older than generation */
 	lu->generation	  = generation;
 
-	fw_notify("%s: reconnected to LUN %04x (%d retries)\n",
-		  tgt->bus_id, lu->lun, lu->retries);
+	dev_notice(tgt_dev(tgt), "reconnected to LUN %04x (%d retries)\n",
+		   lu->lun, lu->retries);
 
 	sbp2_agent_reset(lu);
 	sbp2_cancel_orbs(lu);
@@ -997,6 +1006,13 @@ static int sbp2_add_logical_unit(struct sbp2_target *tgt, int lun_entry)
 	return 0;
 }
 
+static void sbp2_get_unit_unique_id(struct sbp2_target *tgt,
+				    const u32 *leaf)
+{
+	if ((leaf[0] & 0xffff0000) == 0x00020000)
+		tgt->guid = (u64)leaf[1] << 32 | leaf[2];
+}
+
 static int sbp2_scan_logical_unit_dir(struct sbp2_target *tgt,
 				      const u32 *directory)
 {
@@ -1048,6 +1064,10 @@ static int sbp2_scan_unit_dir(struct sbp2_target *tgt, const u32 *directory,
 				return -ENOMEM;
 			break;
 
+		case SBP2_CSR_UNIT_UNIQUE_ID:
+			sbp2_get_unit_unique_id(tgt, ci.p - 1 + value);
+			break;
+
 		case SBP2_CSR_LOGICAL_UNIT_DIRECTORY:
 			/* Adjust for the increment in the iterator */
 			if (sbp2_scan_logical_unit_dir(tgt, ci.p - 1 + value) < 0)
@@ -1068,8 +1088,8 @@ static void sbp2_clamp_management_orb_timeout(struct sbp2_target *tgt)
 	unsigned int timeout = tgt->mgt_orb_timeout;
 
 	if (timeout > 40000)
-		fw_notify("%s: %ds mgt_ORB_timeout limited to 40s\n",
-			  tgt->bus_id, timeout / 1000);
+		dev_notice(tgt_dev(tgt), "%ds mgt_ORB_timeout limited to 40s\n",
+			   timeout / 1000);
 
 	tgt->mgt_orb_timeout = clamp_val(timeout, 5000, 40000);
 }
@@ -1081,9 +1101,9 @@ static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model,
 	unsigned int w = sbp2_param_workarounds;
 
 	if (w)
-		fw_notify("Please notify linux1394-devel@lists.sourceforge.net "
-			  "if you need the workarounds parameter for %s\n",
-			  tgt->bus_id);
+		dev_notice(tgt_dev(tgt),
+			   "Please notify linux1394-devel@lists.sf.net "
+			   "if you need the workarounds parameter\n");
 
 	if (w & SBP2_WORKAROUND_OVERRIDE)
 		goto out;
@@ -1103,9 +1123,9 @@ static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model,
 	}
  out:
 	if (w)
-		fw_notify("Workarounds for %s: 0x%x "
-			  "(firmware_revision 0x%06x, model_id 0x%06x)\n",
-			  tgt->bus_id, w, firmware_revision, model);
+		dev_notice(tgt_dev(tgt), "workarounds 0x%x "
+			   "(firmware_revision 0x%06x, model_id 0x%06x)\n",
+			   w, firmware_revision, model);
 	tgt->workarounds = w;
 }
 
@@ -1121,6 +1141,10 @@ static int sbp2_probe(struct device *dev)
 	struct Scsi_Host *shost;
 	u32 model, firmware_revision;
 
+	/* cannot (or should not) handle targets on the local node */
+	if (device->is_local)
+		return -ENODEV;
+
 	if (dma_get_max_seg_size(device->card->device) > SBP2_MAX_SEG_SIZE)
 		BUG_ON(dma_set_max_seg_size(device->card->device,
 					    SBP2_MAX_SEG_SIZE));
@@ -1133,7 +1157,6 @@ static int sbp2_probe(struct device *dev)
 	dev_set_drvdata(&unit->device, tgt);
 	tgt->unit = unit;
 	INIT_LIST_HEAD(&tgt->lu_list);
-	tgt->bus_id = dev_name(&unit->device);
 	tgt->guid = (u64)device->config_rom[3] << 32 | device->config_rom[4];
 
 	if (fw_device_enable_phys_dma(device) < 0)
@@ -1239,7 +1262,7 @@ static int sbp2_remove(struct device *dev)
 		kfree(lu);
 	}
 	scsi_remove_host(shost);
-	fw_notify("released %s, target %d:0:0\n", tgt->bus_id, shost->host_no);
+	dev_notice(dev, "released target %d:0:0\n", shost->host_no);
 
 	scsi_host_put(shost);
 	return 0;
@@ -1261,7 +1284,7 @@ static const struct ieee1394_device_id sbp2_id_table[] = {
 static struct fw_driver sbp2_driver = {
 	.driver   = {
 		.owner  = THIS_MODULE,
-		.name   = sbp2_driver_name,
+		.name   = KBUILD_MODNAME,
 		.bus    = &fw_bus_type,
 		.probe  = sbp2_probe,
 		.remove = sbp2_remove,
@@ -1286,10 +1309,19 @@ static void sbp2_unmap_scatterlist(struct device *card_device,
 static unsigned int sbp2_status_to_sense_data(u8 *sbp2_status, u8 *sense_data)
 {
 	int sam_status;
+	int sfmt = (sbp2_status[0] >> 6) & 0x03;
+
+	if (sfmt == 2 || sfmt == 3) {
+		/*
+		 * Reserved for future standardization (2) or
+		 * Status block format vendor-dependent (3)
+		 */
+		return DID_ERROR << 16;
+	}
 
-	sense_data[0] = 0x70;
+	sense_data[0] = 0x70 | sfmt | (sbp2_status[1] & 0x80);
 	sense_data[1] = 0x0;
-	sense_data[2] = sbp2_status[1];
+	sense_data[2] = ((sbp2_status[1] << 1) & 0xe0) | (sbp2_status[1] & 0x0f);
 	sense_data[3] = sbp2_status[4];
 	sense_data[4] = sbp2_status[5];
 	sense_data[5] = sbp2_status[6];
@@ -1325,7 +1357,7 @@ static void complete_command_orb(struct sbp2_orb *base_orb,
 {
 	struct sbp2_command_orb *orb =
 		container_of(base_orb, struct sbp2_command_orb, base);
-	struct fw_device *device = target_device(orb->lu->tgt);
+	struct fw_device *device = target_parent_device(orb->lu->tgt);
 	int result;
 
 	if (status != NULL) {
@@ -1433,7 +1465,7 @@ static int sbp2_scsi_queuecommand(struct Scsi_Host *shost,
 				  struct scsi_cmnd *cmd)
 {
 	struct sbp2_logical_unit *lu = cmd->device->hostdata;
-	struct fw_device *device = target_device(lu->tgt);
+	struct fw_device *device = target_parent_device(lu->tgt);
 	struct sbp2_command_orb *orb;
 	int generation, retval = SCSI_MLQUEUE_HOST_BUSY;
 
@@ -1442,7 +1474,7 @@ static int sbp2_scsi_queuecommand(struct Scsi_Host *shost,
 	 * transfer direction not handled.
 	 */
 	if (cmd->sc_data_direction == DMA_BIDIRECTIONAL) {
-		fw_error("Can't handle DMA_BIDIRECTIONAL, rejecting command\n");
+		dev_err(lu_dev(lu), "cannot handle bidirectional command\n");
 		cmd->result = DID_ERROR << 16;
 		cmd->scsi_done(cmd);
 		return 0;
@@ -1450,7 +1482,7 @@ static int sbp2_scsi_queuecommand(struct Scsi_Host *shost,
 
 	orb = kzalloc(sizeof(*orb), GFP_ATOMIC);
 	if (orb == NULL) {
-		fw_notify("failed to alloc orb\n");
+		dev_notice(lu_dev(lu), "failed to alloc ORB\n");
 		return SCSI_MLQUEUE_HOST_BUSY;
 	}
 
@@ -1550,7 +1582,7 @@ static int sbp2_scsi_abort(struct scsi_cmnd *cmd)
 {
 	struct sbp2_logical_unit *lu = cmd->device->hostdata;
 
-	fw_notify("%s: sbp2_scsi_abort\n", lu->tgt->bus_id);
+	dev_notice(lu_dev(lu), "sbp2_scsi_abort\n");
 	sbp2_agent_reset(lu);
 	sbp2_cancel_orbs(lu);
 
@@ -1590,7 +1622,7 @@ static struct device_attribute *sbp2_scsi_sysfs_attrs[] = {
 static struct scsi_host_template scsi_driver_template = {
 	.module			= THIS_MODULE,
 	.name			= "SBP-2 IEEE-1394",
-	.proc_name		= sbp2_driver_name,
+	.proc_name		= "sbp2",
 	.queuecommand		= sbp2_scsi_queuecommand,
 	.slave_alloc		= sbp2_scsi_slave_alloc,
 	.slave_configure	= sbp2_scsi_slave_configure,

include/linux/firewire-cdev.h

@@ -207,12 +207,16 @@ struct fw_cdev_event_request2 {
  * @closure:	See &fw_cdev_event_common;
  *		set by %FW_CDEV_CREATE_ISO_CONTEXT ioctl
  * @type:	See &fw_cdev_event_common; always %FW_CDEV_EVENT_ISO_INTERRUPT
- * @cycle:	Cycle counter of the interrupt packet
+ * @cycle:	Cycle counter of the last completed packet
  * @header_length: Total length of following headers, in bytes
  * @header:	Stripped headers, if any
  *
  * This event is sent when the controller has completed an &fw_cdev_iso_packet
- * with the %FW_CDEV_ISO_INTERRUPT bit set.
+ * with the %FW_CDEV_ISO_INTERRUPT bit set, when explicitly requested with
+ * %FW_CDEV_IOC_FLUSH_ISO, or when there have been so many completed packets
+ * without the interrupt bit set that the kernel's internal buffer for @header
+ * is about to overflow.  (In the last case, kernels with ABI version < 5 drop
+ * header data up to the next interrupt packet.)
  *
  * Isochronous transmit events (context type %FW_CDEV_ISO_CONTEXT_TRANSMIT):
  *
@@ -267,9 +271,9 @@ struct fw_cdev_event_iso_interrupt {
  *
  * This event is sent in multichannel contexts (context type
  * %FW_CDEV_ISO_CONTEXT_RECEIVE_MULTICHANNEL) for &fw_cdev_iso_packet buffer
- * chunks that have the %FW_CDEV_ISO_INTERRUPT bit set.  Whether this happens
- * when a packet is completed and/or when a buffer chunk is completed depends
- * on the hardware implementation.
+ * chunks that have been completely filled and that have the
+ * %FW_CDEV_ISO_INTERRUPT bit set, or when explicitly requested with
+ * %FW_CDEV_IOC_FLUSH_ISO.
  *
  * The buffer is continuously filled with the following data, per packet:
  *  - the 1394 iso packet header as described at &fw_cdev_event_iso_interrupt,
@@ -419,6 +423,9 @@ union fw_cdev_event {
 #define FW_CDEV_IOC_RECEIVE_PHY_PACKETS _IOW('#', 0x16, struct fw_cdev_receive_phy_packets)
 #define FW_CDEV_IOC_SET_ISO_CHANNELS    _IOW('#', 0x17, struct fw_cdev_set_iso_channels)
 
+/* available since kernel version 3.4 */
+#define FW_CDEV_IOC_FLUSH_ISO           _IOW('#', 0x18, struct fw_cdev_flush_iso)
+
 /*
  * ABI version history
  *  1  (2.6.22)  - initial version
@@ -441,6 +448,9 @@ union fw_cdev_event {
  *               - added %FW_CDEV_EVENT_ISO_INTERRUPT_MULTICHANNEL,
  *                 %FW_CDEV_ISO_CONTEXT_RECEIVE_MULTICHANNEL, and
  *                 %FW_CDEV_IOC_SET_ISO_CHANNELS
+ *  5  (3.4)     - send %FW_CDEV_EVENT_ISO_INTERRUPT events when needed to
+ *                 avoid dropping data
+ *               - added %FW_CDEV_IOC_FLUSH_ISO
  */
 
 /**
@@ -850,6 +860,25 @@ struct fw_cdev_stop_iso {
 	__u32 handle;
 };
 
+/**
+ * struct fw_cdev_flush_iso - flush completed iso packets
+ * @handle:	handle of isochronous context to flush
+ *
+ * For %FW_CDEV_ISO_CONTEXT_TRANSMIT or %FW_CDEV_ISO_CONTEXT_RECEIVE contexts,
+ * report any completed packets.
+ *
+ * For %FW_CDEV_ISO_CONTEXT_RECEIVE_MULTICHANNEL contexts, report the current
+ * offset in the receive buffer, if it has changed; this is typically in the
+ * middle of some buffer chunk.
+ *
+ * Any %FW_CDEV_EVENT_ISO_INTERRUPT or %FW_CDEV_EVENT_ISO_INTERRUPT_MULTICHANNEL
+ * events generated by this ioctl are sent synchronously, i.e., are available
+ * for reading from the file descriptor when this ioctl returns.
+ */
+struct fw_cdev_flush_iso {
+	__u32 handle;
+};
+
 /**
  * struct fw_cdev_get_cycle_timer - read cycle timer register
  * @local_time:   system time, in microseconds since the Epoch

include/linux/firewire.h

@@ -17,9 +17,6 @@
 #include <linux/atomic.h>
 #include <asm/byteorder.h>
 
-#define fw_notify(s, args...) printk(KERN_NOTICE KBUILD_MODNAME ": " s, ## args)
-#define fw_error(s, args...) printk(KERN_ERR KBUILD_MODNAME ": " s, ## args)
-
 #define CSR_REGISTER_BASE		0xfffff0000000ULL
 
 /* register offsets are relative to CSR_REGISTER_BASE */
@@ -203,18 +200,6 @@ static inline int fw_device_is_shutdown(struct fw_device *device)
 	return atomic_read(&device->state) == FW_DEVICE_SHUTDOWN;
 }
 
-static inline struct fw_device *fw_device_get(struct fw_device *device)
-{
-	get_device(&device->device);
-
-	return device;
-}
-
-static inline void fw_device_put(struct fw_device *device)
-{
-	put_device(&device->device);
-}
-
 int fw_device_enable_phys_dma(struct fw_device *device);
 
 /*
@@ -441,6 +426,7 @@ int fw_iso_context_queue(struct fw_iso_context *ctx,
 			 struct fw_iso_buffer *buffer,
 			 unsigned long payload);
 void fw_iso_context_queue_flush(struct fw_iso_context *ctx);
+int fw_iso_context_flush_completions(struct fw_iso_context *ctx);
 int fw_iso_context_start(struct fw_iso_context *ctx,
 			 int cycle, int sync, int tags);
 int fw_iso_context_stop(struct fw_iso_context *ctx);

sound/firewire/isight.c

@@ -611,7 +611,6 @@ static void isight_card_free(struct snd_card *card)
 
 	fw_iso_resources_destroy(&isight->resources);
 	fw_unit_put(isight->unit);
-	fw_device_put(isight->device);
 	mutex_destroy(&isight->mutex);
 }
 
@@ -644,7 +643,7 @@ static int isight_probe(struct device *unit_dev)
 	isight->card = card;
 	mutex_init(&isight->mutex);
 	isight->unit = fw_unit_get(unit);
-	isight->device = fw_device_get(fw_dev);
+	isight->device = fw_dev;
 	isight->audio_base = get_unit_base(unit);
 	if (!isight->audio_base) {
 		dev_err(&unit->device, "audio unit base not found\n");
@@ -681,7 +680,6 @@ static int isight_probe(struct device *unit_dev)
 
 err_unit:
 	fw_unit_put(isight->unit);
-	fw_device_put(isight->device);
 	mutex_destroy(&isight->mutex);
 error:
 	snd_card_free(card);

sound/firewire/speakers.c

@@ -656,12 +656,10 @@ static u32 fwspk_read_firmware_version(struct fw_unit *unit)
 static void fwspk_card_free(struct snd_card *card)
 {
 	struct fwspk *fwspk = card->private_data;
-	struct fw_device *dev = fw_parent_device(fwspk->unit);
 
 	amdtp_out_stream_destroy(&fwspk->stream);
 	cmp_connection_destroy(&fwspk->connection);
 	fw_unit_put(fwspk->unit);
-	fw_device_put(dev);
 	mutex_destroy(&fwspk->mutex);
 }
 
@@ -718,7 +716,6 @@ static int __devinit fwspk_probe(struct device *unit_dev)
 	fwspk = card->private_data;
 	fwspk->card = card;
 	mutex_init(&fwspk->mutex);
-	fw_device_get(fw_dev);
 	fwspk->unit = fw_unit_get(unit);
 	fwspk->device_info = fwspk_detect(fw_dev);
 	if (!fwspk->device_info) {
@@ -767,7 +764,6 @@ static int __devinit fwspk_probe(struct device *unit_dev)
 	cmp_connection_destroy(&fwspk->connection);
 err_unit:
 	fw_unit_put(fwspk->unit);
-	fw_device_put(fw_dev);
 	mutex_destroy(&fwspk->mutex);
 error:
 	snd_card_free(card);