firewire net: Introduce fwnet_broadcast_stop() to destroy broadcast resources.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
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eac31d58ca
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111534cd7a
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@ -1146,6 +1146,32 @@ static int fwnet_fifo_start(struct fwnet_device *dev)
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return 0;
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return 0;
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}
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}
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static void __fwnet_broadcast_stop(struct fwnet_device *dev)
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{
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unsigned u;
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if (dev->broadcast_state != FWNET_BROADCAST_ERROR) {
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for (u = 0; u < FWNET_ISO_PAGE_COUNT; u++)
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kunmap(dev->broadcast_rcv_buffer.pages[u]);
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fw_iso_buffer_destroy(&dev->broadcast_rcv_buffer, dev->card);
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}
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if (dev->broadcast_rcv_context) {
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fw_iso_context_destroy(dev->broadcast_rcv_context);
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dev->broadcast_rcv_context = NULL;
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}
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kfree(dev->broadcast_rcv_buffer_ptrs);
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dev->broadcast_rcv_buffer_ptrs = NULL;
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dev->broadcast_state = FWNET_BROADCAST_ERROR;
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}
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static void fwnet_broadcast_stop(struct fwnet_device *dev)
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{
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if (dev->broadcast_state == FWNET_BROADCAST_ERROR)
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return;
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fw_iso_context_stop(dev->broadcast_rcv_context);
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__fwnet_broadcast_stop(dev);
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}
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static int fwnet_broadcast_start(struct fwnet_device *dev)
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static int fwnet_broadcast_start(struct fwnet_device *dev)
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{
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{
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struct fw_iso_context *context;
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struct fw_iso_context *context;
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@ -1166,7 +1192,7 @@ static int fwnet_broadcast_start(struct fwnet_device *dev)
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ptrptr = kmalloc(sizeof(void *) * num_packets, GFP_KERNEL);
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ptrptr = kmalloc(sizeof(void *) * num_packets, GFP_KERNEL);
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if (!ptrptr) {
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if (!ptrptr) {
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retval = -ENOMEM;
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retval = -ENOMEM;
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goto failed_ptrs_alloc;
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goto failed;
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}
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}
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dev->broadcast_rcv_buffer_ptrs = ptrptr;
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dev->broadcast_rcv_buffer_ptrs = ptrptr;
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@ -1176,13 +1202,15 @@ static int fwnet_broadcast_start(struct fwnet_device *dev)
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fwnet_receive_broadcast, dev);
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fwnet_receive_broadcast, dev);
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if (IS_ERR(context)) {
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if (IS_ERR(context)) {
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retval = PTR_ERR(context);
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retval = PTR_ERR(context);
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goto failed_context_create;
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goto failed;
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}
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}
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retval = fw_iso_buffer_init(&dev->broadcast_rcv_buffer, dev->card,
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retval = fw_iso_buffer_init(&dev->broadcast_rcv_buffer, dev->card,
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FWNET_ISO_PAGE_COUNT, DMA_FROM_DEVICE);
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FWNET_ISO_PAGE_COUNT, DMA_FROM_DEVICE);
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if (retval < 0)
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if (retval < 0)
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goto failed_buffer_init;
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goto failed;
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dev->broadcast_state = FWNET_BROADCAST_STOPPED;
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for (u = 0; u < FWNET_ISO_PAGE_COUNT; u++) {
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for (u = 0; u < FWNET_ISO_PAGE_COUNT; u++) {
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void *ptr;
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void *ptr;
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@ -1206,7 +1234,7 @@ static int fwnet_broadcast_start(struct fwnet_device *dev)
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retval = fw_iso_context_queue(context, &packet,
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retval = fw_iso_context_queue(context, &packet,
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&dev->broadcast_rcv_buffer, offset);
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&dev->broadcast_rcv_buffer, offset);
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if (retval < 0)
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if (retval < 0)
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goto failed_rcv_queue;
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goto failed;
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offset += max_receive;
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offset += max_receive;
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}
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}
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@ -1216,7 +1244,7 @@ static int fwnet_broadcast_start(struct fwnet_device *dev)
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retval = fw_iso_context_start(context, -1, 0,
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retval = fw_iso_context_start(context, -1, 0,
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FW_ISO_CONTEXT_MATCH_ALL_TAGS); /* ??? sync */
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FW_ISO_CONTEXT_MATCH_ALL_TAGS); /* ??? sync */
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if (retval < 0)
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if (retval < 0)
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goto failed_rcv_queue;
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goto failed;
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/* FIXME: adjust it according to the min. speed of all known peers? */
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/* FIXME: adjust it according to the min. speed of all known peers? */
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dev->broadcast_xmt_max_payload = IEEE1394_MAX_PAYLOAD_S100
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dev->broadcast_xmt_max_payload = IEEE1394_MAX_PAYLOAD_S100
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@ -1225,18 +1253,8 @@ static int fwnet_broadcast_start(struct fwnet_device *dev)
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return 0;
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return 0;
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failed_rcv_queue:
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failed:
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for (u = 0; u < FWNET_ISO_PAGE_COUNT; u++)
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__fwnet_broadcast_stop(dev);
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kunmap(dev->broadcast_rcv_buffer.pages[u]);
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fw_iso_buffer_destroy(&dev->broadcast_rcv_buffer, dev->card);
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failed_buffer_init:
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fw_iso_context_destroy(context);
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dev->broadcast_rcv_context = NULL;
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failed_context_create:
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kfree(dev->broadcast_rcv_buffer_ptrs);
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dev->broadcast_rcv_buffer_ptrs = NULL;
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failed_ptrs_alloc:
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return retval;
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return retval;
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}
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}
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@ -1621,22 +1639,8 @@ static int fwnet_remove(struct device *_dev)
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unregister_netdev(net);
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unregister_netdev(net);
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fwnet_fifo_stop(dev);
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fwnet_fifo_stop(dev);
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if (dev->broadcast_rcv_context) {
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fwnet_broadcast_stop(dev);
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unsigned u;
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fw_iso_context_stop(dev->broadcast_rcv_context);
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for (u = 0; u < FWNET_ISO_PAGE_COUNT; u++)
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kunmap(dev->broadcast_rcv_buffer.pages[u]);
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fw_iso_buffer_destroy(&dev->broadcast_rcv_buffer,
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dev->card);
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fw_iso_context_destroy(dev->broadcast_rcv_context);
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dev->broadcast_rcv_context = NULL;
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kfree(dev->broadcast_rcv_buffer_ptrs);
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dev->broadcast_rcv_buffer_ptrs = NULL;
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dev->broadcast_state = FWNET_BROADCAST_ERROR;
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}
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for (i = 0; dev->queued_datagrams && i < 5; i++)
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for (i = 0; dev->queued_datagrams && i < 5; i++)
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ssleep(1);
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ssleep(1);
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WARN_ON(dev->queued_datagrams);
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WARN_ON(dev->queued_datagrams);
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