---

yaml
---
r: 4443
b: refs/heads/master
c: 5c23804
h: refs/heads/master
i:
  4441: 7f67920
  4439: 6a57e0d
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ec6bced6c7b92904f5ead39c9c1b8dc734e6eff0
+refs/heads/master: 5c23804a0941a111752fdacefe0bea2db1b4d93f

trunk/arch/xtensa/kernel/syscalls.c

@@ -42,7 +42,6 @@
 #include <asm/mman.h>
 #include <asm/shmparam.h>
 #include <asm/page.h>
-#include <asm/ipc.h>
 
 extern void do_syscall_trace(void);
 typedef int (*syscall_t)(void *a0,...);

trunk/drivers/ieee1394/Kconfig

@@ -66,6 +66,18 @@ config IEEE1394_CONFIG_ROM_IP1394
 	  with MacOSX and WinXP IP-over-1394), enable this option and the
 	  eth1394 option below.
 
+config IEEE1394_EXPORT_FULL_API
+	bool "Export all symbols of ieee1394's API"
+	depends on IEEE1394
+	default n
+	help
+	  Export all symbols of ieee1394's driver programming interface, even
+	  those that are not currently used by the standard IEEE 1394 drivers.
+
+	  This option does not affect the interface to userspace applications.
+	  Say Y here if you want to compile externally developed drivers that
+	  make extended use of ieee1394's API. It is otherwise safe to say N.
+
 comment "Device Drivers"
 	depends on IEEE1394
 

trunk/drivers/ieee1394/csr.c

@@ -28,6 +28,7 @@
 #include "hosts.h"
 #include "ieee1394.h"
 #include "highlevel.h"
+#include "ieee1394_core.h"
 
 /* Module Parameters */
 /* this module parameter can be used to disable mapping of the FCP registers */
@@ -232,7 +233,7 @@ static void add_host(struct hpsb_host *host)
 	host->csr.generation = 2;
 
 	bus_info[1] = __constant_cpu_to_be32(0x31333934);
-	bus_info[2] = cpu_to_be32((1 << CSR_IRMC_SHIFT) |
+	bus_info[2] = cpu_to_be32((hpsb_disable_irm ? 0 : 1 << CSR_IRMC_SHIFT) |
 				  (1 << CSR_CMC_SHIFT) |
 				  (1 << CSR_ISC_SHIFT) |
 				  (0 << CSR_BMC_SHIFT) |

trunk/drivers/ieee1394/csr1212.c

@@ -209,7 +209,15 @@ void csr1212_init_local_csr(struct csr1212_csr *csr,
 {
 	static const int mr_map[] = { 4, 64, 1024, 0 };
 
+#ifdef __KERNEL__
+	BUG_ON(max_rom & ~0x3);
 	csr->max_rom = mr_map[max_rom];
+#else
+	if (max_rom & ~0x3) /* caller supplied invalid argument */
+		csr->max_rom = 0;
+	else
+		csr->max_rom = mr_map[max_rom];
+#endif
 	memcpy(csr->bus_info_data, bus_info_data, csr->bus_info_len);
 }
 
@@ -533,12 +541,15 @@ struct csr1212_keyval *csr1212_new_icon_descriptor_leaf(u_int32_t version,
 	static const int pd[4] = { 0, 4, 16, 256 };
 	static const int cs[16] = { 4, 2 };
 	struct csr1212_keyval *kv;
-	int palette_size = pd[palette_depth] * cs[color_space];
+	int palette_size;
 	int pixel_size = (hscan * vscan + 3) & ~0x3;
 
-	if ((palette_depth && !palette) || !pixels)
+	if (!pixels || (!palette && palette_depth) ||
+	    (palette_depth & ~0x3) || (color_space & ~0xf))
 		return NULL;
 
+	palette_size = pd[palette_depth] * cs[color_space];
+
 	kv = csr1212_new_descriptor_leaf(1, 0, NULL,
 					 palette_size + pixel_size +
 					 CSR1212_ICON_DESCRIPTOR_LEAF_OVERHEAD);
@@ -760,9 +771,9 @@ static int csr1212_append_new_cache(struct csr1212_csr *csr, size_t romsize)
 	struct csr1212_csr_rom_cache *cache;
 	u_int64_t csr_addr;
 
-	if (!csr || !csr->ops->allocate_addr_range ||
-	    !csr->ops->release_addr)
-		return CSR1212_ENOMEM;
+	if (!csr || !csr->ops || !csr->ops->allocate_addr_range ||
+	    !csr->ops->release_addr || csr->max_rom < 1)
+		return CSR1212_EINVAL;
 
 	/* ROM size must be a multiple of csr->max_rom */
 	romsize = (romsize + (csr->max_rom - 1)) & ~(csr->max_rom - 1);
@@ -1145,6 +1156,8 @@ int csr1212_generate_csr_image(struct csr1212_csr *csr)
 
 			/* Make sure the Extended ROM leaf is a multiple of
 			 * max_rom in size. */
+			if (csr->max_rom < 1)
+				return CSR1212_EINVAL;
 			leaf_size = (cache->len + (csr->max_rom - 1)) &
 				~(csr->max_rom - 1);
 
@@ -1409,7 +1422,7 @@ int _csr1212_read_keyval(struct csr1212_csr *csr, struct csr1212_keyval *kv)
 	u_int32_t *cache_ptr;
 	u_int16_t kv_len = 0;
 
-	if (!csr || !kv)
+	if (!csr || !kv || csr->max_rom < 1)
 		return CSR1212_EINVAL;
 
 	/* First find which cache the data should be in (or go in if not read
@@ -1572,7 +1585,7 @@ int csr1212_parse_csr(struct csr1212_csr *csr)
 	struct csr1212_dentry *dentry;
 	int ret;
 
-	if (!csr || !csr->ops->bus_read)
+	if (!csr || !csr->ops || !csr->ops->bus_read)
 		return CSR1212_EINVAL;
 
 	ret = csr1212_parse_bus_info_block(csr);
@@ -1581,9 +1594,13 @@ int csr1212_parse_csr(struct csr1212_csr *csr)
 
 	if (!csr->ops->get_max_rom)
 		csr->max_rom = mr_map[0];	/* default value */
-	else
-		csr->max_rom = mr_map[csr->ops->get_max_rom(csr->bus_info_data,
-							    csr->private)];
+	else {
+		int i = csr->ops->get_max_rom(csr->bus_info_data,
+					      csr->private);
+		if (i & ~0x3)
+			return CSR1212_EINVAL;
+		csr->max_rom = mr_map[i];
+	}
 
 	csr->cache_head->layout_head = csr->root_kv;
 	csr->cache_head->layout_tail = csr->root_kv;

trunk/drivers/ieee1394/dma.c

@@ -158,7 +158,7 @@ static inline int dma_region_find(struct dma_region *dma, unsigned long offset,
 
 dma_addr_t dma_region_offset_to_bus(struct dma_region *dma, unsigned long offset)
 {
-	unsigned long rem;
+	unsigned long rem = 0;
 
 	struct scatterlist *sg = &dma->sglist[dma_region_find(dma, offset, &rem)];
 	return sg_dma_address(sg) + rem;

trunk/drivers/ieee1394/eth1394.c

@@ -89,7 +89,7 @@
 #define TRACE() printk(KERN_ERR "%s:%s[%d] ---- TRACE\n", driver_name, __FUNCTION__, __LINE__)
 
 static char version[] __devinitdata =
-	"$Rev: 1247 $ Ben Collins <bcollins@debian.org>";
+	"$Rev: 1264 $ Ben Collins <bcollins@debian.org>";
 
 struct fragment_info {
 	struct list_head list;
@@ -706,7 +706,7 @@ static void ether1394_host_reset (struct hpsb_host *host)
 		return;
 
 	dev = hi->dev;
-	priv = netdev_priv(dev);
+	priv = (struct eth1394_priv *)netdev_priv(dev);
 
 	/* Reset our private host data, but not our mtu */
 	netif_stop_queue (dev);
@@ -1770,7 +1770,7 @@ static int ether1394_tx (struct sk_buff *skb, struct net_device *dev)
 static void ether1394_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
 {
 	strcpy (info->driver, driver_name);
-	strcpy (info->version, "$Rev: 1247 $");
+	strcpy (info->version, "$Rev: 1264 $");
 	/* FIXME XXX provide sane businfo */
 	strcpy (info->bus_info, "ieee1394");
 }

trunk/drivers/ieee1394/ieee1394_core.c

@@ -52,7 +52,7 @@
 /*
  * Disable the nodemgr detection and config rom reading functionality.
  */
-static int disable_nodemgr = 0;
+static int disable_nodemgr;
 module_param(disable_nodemgr, int, 0444);
 MODULE_PARM_DESC(disable_nodemgr, "Disable nodemgr functionality.");
 
@@ -520,6 +520,9 @@ int hpsb_send_packet(struct hpsb_packet *packet)
 
 	if (!packet->no_waiter || packet->expect_response) {
 		atomic_inc(&packet->refcnt);
+		/* Set the initial "sendtime" to 10 seconds from now, to
+		   prevent premature expiry.  If a packet takes more than
+		   10 seconds to hit the wire, we have bigger problems :) */
 		packet->sendtime = jiffies + 10 * HZ;
 		skb_queue_tail(&host->pending_packet_queue, packet->skb);
 	}
@@ -1223,16 +1226,18 @@ EXPORT_SYMBOL(hpsb_protocol_class);
 EXPORT_SYMBOL(hpsb_set_packet_complete_task);
 EXPORT_SYMBOL(hpsb_alloc_packet);
 EXPORT_SYMBOL(hpsb_free_packet);
-EXPORT_SYMBOL(hpsb_send_phy_config);
 EXPORT_SYMBOL(hpsb_send_packet);
-EXPORT_SYMBOL(hpsb_send_packet_and_wait);
 EXPORT_SYMBOL(hpsb_reset_bus);
 EXPORT_SYMBOL(hpsb_bus_reset);
 EXPORT_SYMBOL(hpsb_selfid_received);
 EXPORT_SYMBOL(hpsb_selfid_complete);
 EXPORT_SYMBOL(hpsb_packet_sent);
 EXPORT_SYMBOL(hpsb_packet_received);
 EXPORT_SYMBOL_GPL(hpsb_disable_irm);
+#ifdef CONFIG_IEEE1394_EXPORT_FULL_API
+EXPORT_SYMBOL(hpsb_send_phy_config);
+EXPORT_SYMBOL(hpsb_send_packet_and_wait);
+#endif
 
 /** ieee1394_transactions.c **/
 EXPORT_SYMBOL(hpsb_get_tlabel);
@@ -1262,17 +1267,21 @@ EXPORT_SYMBOL(hpsb_destroy_hostinfo);
 EXPORT_SYMBOL(hpsb_set_hostinfo_key);
 EXPORT_SYMBOL(hpsb_get_hostinfo_bykey);
 EXPORT_SYMBOL(hpsb_set_hostinfo);
+EXPORT_SYMBOL(highlevel_host_reset);
+#ifdef CONFIG_IEEE1394_EXPORT_FULL_API
 EXPORT_SYMBOL(highlevel_add_host);
 EXPORT_SYMBOL(highlevel_remove_host);
-EXPORT_SYMBOL(highlevel_host_reset);
+#endif
 
 /** nodemgr.c **/
 EXPORT_SYMBOL(hpsb_node_fill_packet);
 EXPORT_SYMBOL(hpsb_node_write);
 EXPORT_SYMBOL(hpsb_register_protocol);
 EXPORT_SYMBOL(hpsb_unregister_protocol);
 EXPORT_SYMBOL(ieee1394_bus_type);
+#ifdef CONFIG_IEEE1394_EXPORT_FULL_API
 EXPORT_SYMBOL(nodemgr_for_each_host);
+#endif
 
 /** csr.c **/
 EXPORT_SYMBOL(hpsb_update_config_rom);
@@ -1309,19 +1318,21 @@ EXPORT_SYMBOL(hpsb_iso_wake);
 EXPORT_SYMBOL(hpsb_iso_recv_flush);
 
 /** csr1212.c **/
-EXPORT_SYMBOL(csr1212_create_csr);
-EXPORT_SYMBOL(csr1212_init_local_csr);
-EXPORT_SYMBOL(csr1212_new_immediate);
 EXPORT_SYMBOL(csr1212_new_directory);
-EXPORT_SYMBOL(csr1212_associate_keyval);
 EXPORT_SYMBOL(csr1212_attach_keyval_to_directory);
-EXPORT_SYMBOL(csr1212_new_string_descriptor_leaf);
 EXPORT_SYMBOL(csr1212_detach_keyval_from_directory);
 EXPORT_SYMBOL(csr1212_release_keyval);
-EXPORT_SYMBOL(csr1212_destroy_csr);
 EXPORT_SYMBOL(csr1212_read);
-EXPORT_SYMBOL(csr1212_generate_csr_image);
 EXPORT_SYMBOL(csr1212_parse_keyval);
-EXPORT_SYMBOL(csr1212_parse_csr);
 EXPORT_SYMBOL(_csr1212_read_keyval);
 EXPORT_SYMBOL(_csr1212_destroy_keyval);
+#ifdef CONFIG_IEEE1394_EXPORT_FULL_API
+EXPORT_SYMBOL(csr1212_create_csr);
+EXPORT_SYMBOL(csr1212_init_local_csr);
+EXPORT_SYMBOL(csr1212_new_immediate);
+EXPORT_SYMBOL(csr1212_associate_keyval);
+EXPORT_SYMBOL(csr1212_new_string_descriptor_leaf);
+EXPORT_SYMBOL(csr1212_destroy_csr);
+EXPORT_SYMBOL(csr1212_generate_csr_image);
+EXPORT_SYMBOL(csr1212_parse_csr);
+#endif

trunk/drivers/ieee1394/iso.c

@@ -62,10 +62,10 @@ static struct hpsb_iso* hpsb_iso_common_init(struct hpsb_host *host, enum hpsb_i
 	if ((dma_mode < HPSB_ISO_DMA_DEFAULT) || (dma_mode > HPSB_ISO_DMA_PACKET_PER_BUFFER))
 		dma_mode=HPSB_ISO_DMA_DEFAULT;
 
+	if ((irq_interval < 0) || (irq_interval > buf_packets / 4))
+ 		irq_interval = buf_packets / 4;
 	if (irq_interval == 0)     /* really interrupt for each packet*/
 		irq_interval = 1;
-	else if ((irq_interval < 0) || (irq_interval > buf_packets / 4))
- 		irq_interval = buf_packets / 4;
 
 	if (channel < -1 || channel >= 64)
 		return NULL;
@@ -106,6 +106,7 @@ static struct hpsb_iso* hpsb_iso_common_init(struct hpsb_host *host, enum hpsb_i
 	}
 
 	atomic_set(&iso->overflows, 0);
+	iso->bytes_discarded = 0;
 	iso->flags = 0;
 	iso->prebuffer = 0;
 
@@ -241,12 +242,12 @@ int hpsb_iso_xmit_start(struct hpsb_iso *iso, int cycle, int prebuffer)
 	iso->xmit_cycle = cycle;
 
 	if (prebuffer < 0)
-		prebuffer = iso->buf_packets;
+		prebuffer = iso->buf_packets - 1;
 	else if (prebuffer == 0)
 		prebuffer = 1;
 
-	if (prebuffer > iso->buf_packets)
-		prebuffer = iso->buf_packets;
+	if (prebuffer >= iso->buf_packets)
+		prebuffer = iso->buf_packets - 1;
 
 	iso->prebuffer = prebuffer;
 
@@ -395,18 +396,21 @@ void hpsb_iso_packet_sent(struct hpsb_iso *iso, int cycle, int error)
 }
 
 void hpsb_iso_packet_received(struct hpsb_iso *iso, u32 offset, u16 len,
-			      u16 cycle, u8 channel, u8 tag, u8 sy)
+			      u16 total_len, u16 cycle, u8 channel, u8 tag, u8 sy)
 {
 	unsigned long flags;
 	spin_lock_irqsave(&iso->lock, flags);
 
 	if (iso->n_ready_packets == iso->buf_packets) {
 		/* overflow! */
 		atomic_inc(&iso->overflows);
+		/* Record size of this discarded packet */
+		iso->bytes_discarded += total_len;
 	} else {
 		struct hpsb_iso_packet_info *info = &iso->infos[iso->pkt_dma];
 		info->offset = offset;
 		info->len = len;
+		info->total_len = total_len;
 		info->cycle = cycle;
 		info->channel = channel;
 		info->tag = tag;
@@ -437,6 +441,17 @@ int hpsb_iso_recv_release_packets(struct hpsb_iso *iso, unsigned int n_packets)
 
 		iso->first_packet = (iso->first_packet+1) % iso->buf_packets;
 		iso->n_ready_packets--;
+
+		/* release memory from packets discarded when queue was full  */
+		if (iso->n_ready_packets == 0) { /* Release only after all prior packets handled */
+			if (iso->bytes_discarded != 0) {
+				struct hpsb_iso_packet_info inf;
+				inf.total_len = iso->bytes_discarded;
+				iso->host->driver->isoctl(iso, RECV_RELEASE,
+							(unsigned long) &inf);
+				iso->bytes_discarded = 0;
+			}
+		}
 	}
 	spin_unlock_irqrestore(&iso->lock, flags);
 	return rv;

trunk/drivers/ieee1394/iso.h

@@ -47,6 +47,14 @@ struct hpsb_iso_packet_info {
 	/* 2-bit 'tag' and 4-bit 'sy' fields of the isochronous header */
 	__u8 tag;
 	__u8 sy;
+
+	/*
+	 * length in bytes of the packet including header/trailer.
+	 * MUST be at structure end, since the first part of this structure is also 
+	 * defined in raw1394.h (i.e. struct raw1394_iso_packet_info), is copied to 
+	 * userspace and is accessed there through libraw1394. 
+	 */
+	__u16 total_len;
 };
 
 enum hpsb_iso_type { HPSB_ISO_RECV = 0, HPSB_ISO_XMIT = 1 };
@@ -111,6 +119,9 @@ struct hpsb_iso {
 	/* how many times the buffer has overflowed or underflowed */
 	atomic_t overflows;
 
+	/* Current number of bytes lost in discarded packets */
+	int bytes_discarded;
+
 	/* private flags to track initialization progress */
 #define HPSB_ISO_DRIVER_INIT     (1<<0)
 #define HPSB_ISO_DRIVER_STARTED  (1<<1)
@@ -193,7 +204,7 @@ void hpsb_iso_packet_sent(struct hpsb_iso *iso, int cycle, int error);
 
 /* call after a packet has been received (interrupt context OK) */
 void hpsb_iso_packet_received(struct hpsb_iso *iso, u32 offset, u16 len,
-			      u16 cycle, u8 channel, u8 tag, u8 sy);
+			      u16 total_len, u16 cycle, u8 channel, u8 tag, u8 sy);
 
 /* call to wake waiting processes after buffer space has opened up. */
 void hpsb_iso_wake(struct hpsb_iso *iso);

trunk/drivers/ieee1394/nodemgr.c

@@ -30,7 +30,7 @@
 #include "csr.h"
 #include "nodemgr.h"
 
-static int ignore_drivers = 0;
+static int ignore_drivers;
 module_param(ignore_drivers, int, 0444);
 MODULE_PARM_DESC(ignore_drivers, "Disable automatic probing for drivers.");