Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/ieee1394/linux1394-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: new stack is no longer experimental
  firewire: net: better FIFO address range check and rcodes
  firewire: net: fix card driver reloading
  firewire: core: fix iso context shutdown on card removal
  firewire: core: fix DMA unmapping in iso buffer removal
  firewire: net: adjust net_device ops
  firewire: net: remove unused code
  firewire: net: allow for unordered unit discovery
  firewire: net: style changes
  firewire: net: add Kconfig item, rename driver
  firewire: add IPv4 support

drivers/firewire/Kconfig

@@ -1,28 +1,29 @@
-comment "A new alternative FireWire stack is available with EXPERIMENTAL=y"
-	depends on EXPERIMENTAL=n
-
-comment "Enable only one of the two stacks, unless you know what you are doing"
-	depends on EXPERIMENTAL
+comment "You can enable one or both FireWire driver stacks."
+comment "See the help texts for more information."
 
 config FIREWIRE
-	tristate "New FireWire stack, EXPERIMENTAL"
-	depends on EXPERIMENTAL
+	tristate "FireWire driver stack"
 	select CRC_ITU_T
 	help
-	  This is the "Juju" FireWire stack, a new alternative implementation
-	  designed for robustness and simplicity.  You can build either this
-	  stack, or the old stack (the ieee1394 driver, ohci1394 etc.) or both.
-	  Please read http://ieee1394.wiki.kernel.org/index.php/Juju_Migration
-	  before you enable the new stack.
+	  This is the new-generation IEEE 1394 (FireWire) driver stack
+	  a.k.a. Juju, a new implementation designed for robustness and
+	  simplicity.
+	  See http://ieee1394.wiki.kernel.org/index.php/Juju_Migration
+	  for information about migration from the older Linux 1394 stack
+	  to the new driver stack.
 
 	  To compile this driver as a module, say M here: the module will be
 	  called firewire-core.
 
 	  This module functionally replaces ieee1394, raw1394, and video1394.
 	  To access it from application programs, you generally need at least
-	  libraw1394 version 2.  IIDC/DCAM applications also need libdc1394
-	  version 2.  No libraries are required to access storage devices
-	  through the firewire-sbp2 driver.
+	  libraw1394 v2.  IIDC/DCAM applications need libdc1394 v2.
+	  No libraries are required to access storage devices through the
+	  firewire-sbp2 driver.
+
+	  NOTE:
+	  FireWire audio devices currently require the old drivers (ieee1394,
+	  ohci1394, raw1394).
 
 config FIREWIRE_OHCI
 	tristate "OHCI-1394 controllers"
@@ -37,11 +38,9 @@ config FIREWIRE_OHCI
 	  stack.
 
 	  NOTE:
-
-	  You should only build either firewire-ohci or the old ohci1394 driver,
-	  but not both.  If you nevertheless want to install both, you should
-	  configure them only as modules and blacklist the driver(s) which you
-	  don't want to have auto-loaded.  Add either
+	  If you want to install firewire-ohci and ohci1394 together, you
+	  should configure them only as modules and blacklist the driver(s)
+	  which you don't want to have auto-loaded.  Add either
 
 	      blacklist firewire-ohci
 	  or
@@ -50,12 +49,7 @@ config FIREWIRE_OHCI
 	      blacklist dv1394
 
 	  to /etc/modprobe.conf or /etc/modprobe.d/* and update modprobe.conf
-	  depending on your distribution.  The latter two modules should be
-	  blacklisted together with ohci1394 because they depend on ohci1394.
-
-	  If you have an old modprobe which doesn't implement the blacklist
-	  directive, use "install modulename /bin/true" for the modules to be
-	  blacklisted.
+	  depending on your distribution.
 
 config FIREWIRE_OHCI_DEBUG
 	bool
@@ -77,3 +71,17 @@ config FIREWIRE_SBP2
 
 	  You should also enable support for disks, CD-ROMs, etc. in the SCSI
 	  configuration section.
+
+config FIREWIRE_NET
+	tristate "IP networking over 1394 (EXPERIMENTAL)"
+	depends on FIREWIRE && INET && EXPERIMENTAL
+	help
+	  This enables IPv4 over IEEE 1394, providing IP connectivity with
+	  other implementations of RFC 2734 as found on several operating
+	  systems.  Multicast support is currently limited.
+
+	  NOTE, this driver is not stable yet!
+
+	  To compile this driver as a module, say M here:  The module will be
+	  called firewire-net.  It replaces eth1394 of the classic IEEE 1394
+	  stack.

drivers/firewire/Makefile

@@ -6,7 +6,9 @@ firewire-core-y += core-card.o core-cdev.o core-device.o \
                    core-iso.o core-topology.o core-transaction.o
 firewire-ohci-y += ohci.o
 firewire-sbp2-y += sbp2.o
+firewire-net-y  += net.o
 
-obj-$(CONFIG_FIREWIRE) += firewire-core.o
+obj-$(CONFIG_FIREWIRE)      += firewire-core.o
 obj-$(CONFIG_FIREWIRE_OHCI) += firewire-ohci.o
 obj-$(CONFIG_FIREWIRE_SBP2) += firewire-sbp2.o
+obj-$(CONFIG_FIREWIRE_NET)  += firewire-net.o

drivers/firewire/core-card.c

@@ -176,6 +176,7 @@ int fw_core_add_descriptor(struct fw_descriptor *desc)
 
 	return 0;
 }
+EXPORT_SYMBOL(fw_core_add_descriptor);
 
 void fw_core_remove_descriptor(struct fw_descriptor *desc)
 {
@@ -189,6 +190,7 @@ void fw_core_remove_descriptor(struct fw_descriptor *desc)
 
 	mutex_unlock(&card_mutex);
 }
+EXPORT_SYMBOL(fw_core_remove_descriptor);
 
 static void allocate_broadcast_channel(struct fw_card *card, int generation)
 {
@@ -459,11 +461,11 @@ EXPORT_SYMBOL(fw_card_add);
 
 
 /*
- * The next few functions implements a dummy driver that use once a
- * card driver shuts down an fw_card.  This allows the driver to
- * cleanly unload, as all IO to the card will be handled by the dummy
- * driver instead of calling into the (possibly) unloaded module.  The
- * dummy driver just fails all IO.
+ * The next few functions implement a dummy driver that is used once a card
+ * driver shuts down an fw_card.  This allows the driver to cleanly unload,
+ * as all IO to the card will be handled (and failed) by the dummy driver
+ * instead of calling into the module.  Only functions for iso context
+ * shutdown still need to be provided by the card driver.
  */
 
 static int dummy_enable(struct fw_card *card, u32 *config_rom, size_t length)
@@ -510,7 +512,7 @@ static int dummy_enable_phys_dma(struct fw_card *card,
 	return -ENODEV;
 }
 
-static struct fw_card_driver dummy_driver = {
+static const struct fw_card_driver dummy_driver_template = {
 	.enable          = dummy_enable,
 	.update_phy_reg  = dummy_update_phy_reg,
 	.set_config_rom  = dummy_set_config_rom,
@@ -529,6 +531,8 @@ void fw_card_release(struct kref *kref)
 
 void fw_core_remove_card(struct fw_card *card)
 {
+	struct fw_card_driver dummy_driver = dummy_driver_template;
+
 	card->driver->update_phy_reg(card, 4,
 				     PHY_LINK_ACTIVE | PHY_CONTENDER, 0);
 	fw_core_initiate_bus_reset(card, 1);
@@ -537,7 +541,9 @@ void fw_core_remove_card(struct fw_card *card)
 	list_del_init(&card->link);
 	mutex_unlock(&card_mutex);
 
-	/* Set up the dummy driver. */
+	/* Switch off most of the card driver interface. */
+	dummy_driver.free_iso_context	= card->driver->free_iso_context;
+	dummy_driver.stop_iso		= card->driver->stop_iso;
 	card->driver = &dummy_driver;
 
 	fw_destroy_nodes(card);

drivers/firewire/core-iso.c

@@ -71,7 +71,7 @@ int fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card,
 	for (j = 0; j < i; j++) {
 		address = page_private(buffer->pages[j]);
 		dma_unmap_page(card->device, address,
-			       PAGE_SIZE, DMA_TO_DEVICE);
+			       PAGE_SIZE, direction);
 		__free_page(buffer->pages[j]);
 	}
 	kfree(buffer->pages);
@@ -80,6 +80,7 @@ int fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card,
 
 	return -ENOMEM;
 }
+EXPORT_SYMBOL(fw_iso_buffer_init);
 
 int fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma)
 {
@@ -107,13 +108,14 @@ void fw_iso_buffer_destroy(struct fw_iso_buffer *buffer,
 	for (i = 0; i < buffer->page_count; i++) {
 		address = page_private(buffer->pages[i]);
 		dma_unmap_page(card->device, address,
-			       PAGE_SIZE, DMA_TO_DEVICE);
+			       PAGE_SIZE, buffer->direction);
 		__free_page(buffer->pages[i]);
 	}
 
 	kfree(buffer->pages);
 	buffer->pages = NULL;
 }
+EXPORT_SYMBOL(fw_iso_buffer_destroy);
 
 struct fw_iso_context *fw_iso_context_create(struct fw_card *card,
 		int type, int channel, int speed, size_t header_size,
@@ -136,19 +138,22 @@ struct fw_iso_context *fw_iso_context_create(struct fw_card *card,
 
 	return ctx;
 }
+EXPORT_SYMBOL(fw_iso_context_create);
 
 void fw_iso_context_destroy(struct fw_iso_context *ctx)
 {
 	struct fw_card *card = ctx->card;
 
 	card->driver->free_iso_context(ctx);
 }
+EXPORT_SYMBOL(fw_iso_context_destroy);
 
 int fw_iso_context_start(struct fw_iso_context *ctx,
 			 int cycle, int sync, int tags)
 {
 	return ctx->card->driver->start_iso(ctx, cycle, sync, tags);
 }
+EXPORT_SYMBOL(fw_iso_context_start);
 
 int fw_iso_context_queue(struct fw_iso_context *ctx,
 			 struct fw_iso_packet *packet,
@@ -159,11 +164,13 @@ int fw_iso_context_queue(struct fw_iso_context *ctx,
 
 	return card->driver->queue_iso(ctx, packet, buffer, payload);
 }
+EXPORT_SYMBOL(fw_iso_context_queue);
 
 int fw_iso_context_stop(struct fw_iso_context *ctx)
 {
 	return ctx->card->driver->stop_iso(ctx);
 }
+EXPORT_SYMBOL(fw_iso_context_stop);
 
 /*
  * Isochronous bus resource management (channels, bandwidth), client side

drivers/firewire/core.h

@@ -1,7 +1,6 @@
 #ifndef _FIREWIRE_CORE_H
 #define _FIREWIRE_CORE_H
 
-#include <linux/dma-mapping.h>
 #include <linux/fs.h>
 #include <linux/list.h>
 #include <linux/idr.h>
@@ -97,17 +96,6 @@ int fw_core_initiate_bus_reset(struct fw_card *card, int short_reset);
 int fw_compute_block_crc(u32 *block);
 void fw_schedule_bm_work(struct fw_card *card, unsigned long delay);
 
-struct fw_descriptor {
-	struct list_head link;
-	size_t length;
-	u32 immediate;
-	u32 key;
-	const u32 *data;
-};
-
-int fw_core_add_descriptor(struct fw_descriptor *desc);
-void fw_core_remove_descriptor(struct fw_descriptor *desc);
-
 
 /* -cdev */
 
@@ -130,77 +118,7 @@ void fw_node_event(struct fw_card *card, struct fw_node *node, int event);
 
 /* -iso */
 
-/*
- * The iso packet format allows for an immediate header/payload part
- * stored in 'header' immediately after the packet info plus an
- * indirect payload part that is pointer to by the 'payload' field.
- * Applications can use one or the other or both to implement simple
- * low-bandwidth streaming (e.g. audio) or more advanced
- * scatter-gather streaming (e.g. assembling video frame automatically).
- */
-struct fw_iso_packet {
-	u16 payload_length;	/* Length of indirect payload. */
-	u32 interrupt:1;	/* Generate interrupt on this packet */
-	u32 skip:1;		/* Set to not send packet at all. */
-	u32 tag:2;
-	u32 sy:4;
-	u32 header_length:8;	/* Length of immediate header. */
-	u32 header[0];
-};
-
-#define FW_ISO_CONTEXT_TRANSMIT	0
-#define FW_ISO_CONTEXT_RECEIVE	1
-
-#define FW_ISO_CONTEXT_MATCH_TAG0	 1
-#define FW_ISO_CONTEXT_MATCH_TAG1	 2
-#define FW_ISO_CONTEXT_MATCH_TAG2	 4
-#define FW_ISO_CONTEXT_MATCH_TAG3	 8
-#define FW_ISO_CONTEXT_MATCH_ALL_TAGS	15
-
-/*
- * An iso buffer is just a set of pages mapped for DMA in the
- * specified direction.  Since the pages are to be used for DMA, they
- * are not mapped into the kernel virtual address space.  We store the
- * DMA address in the page private. The helper function
- * fw_iso_buffer_map() will map the pages into a given vma.
- */
-struct fw_iso_buffer {
-	enum dma_data_direction direction;
-	struct page **pages;
-	int page_count;
-};
-
-typedef void (*fw_iso_callback_t)(struct fw_iso_context *context,
-				  u32 cycle, size_t header_length,
-				  void *header, void *data);
-
-struct fw_iso_context {
-	struct fw_card *card;
-	int type;
-	int channel;
-	int speed;
-	size_t header_size;
-	fw_iso_callback_t callback;
-	void *callback_data;
-};
-
-int fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card,
-		       int page_count, enum dma_data_direction direction);
 int fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma);
-void fw_iso_buffer_destroy(struct fw_iso_buffer *buffer, struct fw_card *card);
-
-struct fw_iso_context *fw_iso_context_create(struct fw_card *card,
-		int type, int channel, int speed, size_t header_size,
-		fw_iso_callback_t callback, void *callback_data);
-int fw_iso_context_queue(struct fw_iso_context *ctx,
-			 struct fw_iso_packet *packet,
-			 struct fw_iso_buffer *buffer,
-			 unsigned long payload);
-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);
-void fw_iso_context_destroy(struct fw_iso_context *ctx);
-
 void fw_iso_resource_manage(struct fw_card *card, int generation,
 		u64 channels_mask, int *channel, int *bandwidth, bool allocate);
 
@@ -285,9 +203,4 @@ void fw_flush_transactions(struct fw_card *card);
 void fw_send_phy_config(struct fw_card *card,
 			int node_id, int generation, int gap_count);
 
-static inline int fw_stream_packet_destination_id(int tag, int channel, int sy)
-{
-	return tag << 14 | channel << 8 | sy;
-}
-
 #endif /* _FIREWIRE_CORE_H */