if (netif_queue_stopped(net))
netif_wake_queue(net);
- net->last_rx = jiffies;
-
return 0;
}
int speed, unsigned long long offset, void *payload,
size_t length, void *callback_data)
{
- struct fwnet_device *dev;
- int status;
+ struct fwnet_device *dev = callback_data;
+ int rcode;
- dev = callback_data;
- if (tcode != TCODE_WRITE_BLOCK_REQUEST
- || destination != card->node_id /* <- FIXME */
- || generation != card->generation /* <- FIXME */
- || offset != dev->handler.offset) {
- fw_send_response(card, r, RCODE_CONFLICT_ERROR);
+ if (destination == IEEE1394_ALL_NODES) {
+ kfree(r);
return;
}
- status = fwnet_incoming_packet(dev, payload, length,
- source, generation, false);
- if (status != 0) {
+ if (offset != dev->handler.offset)
+ rcode = RCODE_ADDRESS_ERROR;
+ else if (tcode != TCODE_WRITE_BLOCK_REQUEST)
+ rcode = RCODE_TYPE_ERROR;
+ else if (fwnet_incoming_packet(dev, payload, length,
+ source, generation, false) != 0) {
fw_error("Incoming packet failure\n");
- fw_send_response(card, r, RCODE_CONFLICT_ERROR);
-
- return;
- }
+ rcode = RCODE_CONFLICT_ERROR;
+ } else
+ rcode = RCODE_COMPLETE;
- fw_send_response(card, r, RCODE_COMPLETE);
+ fw_send_response(card, r, rcode);
}
static void fwnet_receive_broadcast(struct fw_iso_context *context,
static struct kmem_cache *fwnet_packet_task_cache;
+static void fwnet_free_ptask(struct fwnet_packet_task *ptask)
+{
+ dev_kfree_skb_any(ptask->skb);
+ kmem_cache_free(fwnet_packet_task_cache, ptask);
+}
+
static int fwnet_send_packet(struct fwnet_packet_task *ptask);
static void fwnet_transmit_packet_done(struct fwnet_packet_task *ptask)
{
- struct fwnet_device *dev;
+ struct fwnet_device *dev = ptask->dev;
unsigned long flags;
-
- dev = ptask->dev;
+ bool free;
spin_lock_irqsave(&dev->lock, flags);
- list_del(&ptask->pt_link);
- spin_unlock_irqrestore(&dev->lock, flags);
- ptask->outstanding_pkts--; /* FIXME access inside lock */
+ ptask->outstanding_pkts--;
+
+ /* Check whether we or the networking TX soft-IRQ is last user. */
+ free = (ptask->outstanding_pkts == 0 && !list_empty(&ptask->pt_link));
+
+ if (ptask->outstanding_pkts == 0)
+ list_del(&ptask->pt_link);
+
+ spin_unlock_irqrestore(&dev->lock, flags);
if (ptask->outstanding_pkts > 0) {
u16 dg_size;
ptask->max_payload = skb->len + RFC2374_FRAG_HDR_SIZE;
}
fwnet_send_packet(ptask);
- } else {
- dev_kfree_skb_any(ptask->skb);
- kmem_cache_free(fwnet_packet_task_cache, ptask);
}
+
+ if (free)
+ fwnet_free_ptask(ptask);
}
static void fwnet_write_complete(struct fw_card *card, int rcode,
unsigned tx_len;
struct rfc2734_header *bufhdr;
unsigned long flags;
+ bool free;
dev = ptask->dev;
tx_len = ptask->max_payload;
generation, SCODE_100, 0ULL, ptask->skb->data,
tx_len + 8, fwnet_write_complete, ptask);
- /* FIXME race? */
spin_lock_irqsave(&dev->lock, flags);
- list_add_tail(&ptask->pt_link, &dev->broadcasted_list);
+
+ /* If the AT tasklet already ran, we may be last user. */
+ free = (ptask->outstanding_pkts == 0 && list_empty(&ptask->pt_link));
+ if (!free)
+ list_add_tail(&ptask->pt_link, &dev->broadcasted_list);
+
spin_unlock_irqrestore(&dev->lock, flags);
- return 0;
+ goto out;
}
fw_send_request(dev->card, &ptask->transaction,
ptask->generation, ptask->speed, ptask->fifo_addr,
ptask->skb->data, tx_len, fwnet_write_complete, ptask);
- /* FIXME race? */
spin_lock_irqsave(&dev->lock, flags);
- list_add_tail(&ptask->pt_link, &dev->sent_list);
+
+ /* If the AT tasklet already ran, we may be last user. */
+ free = (ptask->outstanding_pkts == 0 && list_empty(&ptask->pt_link));
+ if (!free)
+ list_add_tail(&ptask->pt_link, &dev->sent_list);
+
spin_unlock_irqrestore(&dev->lock, flags);
dev->netdev->trans_start = jiffies;
+ out:
+ if (free)
+ fwnet_free_ptask(ptask);
return 0;
}
return 0;
}
-static int fwnet_tx(struct sk_buff *skb, struct net_device *net)
+static netdev_tx_t fwnet_tx(struct sk_buff *skb, struct net_device *net)
{
struct fwnet_header hdr_buf;
struct fwnet_device *dev = netdev_priv(net);
spin_unlock_irqrestore(&dev->lock, flags);
ptask->max_payload = max_payload;
+ INIT_LIST_HEAD(&ptask->pt_link);
+
fwnet_send_packet(ptask);
return NETDEV_TX_OK;
strcpy(info->bus_info, "ieee1394");
}
-static struct ethtool_ops fwnet_ethtool_ops = {
+static const struct ethtool_ops fwnet_ethtool_ops = {
.get_drvinfo = fwnet_get_drvinfo,
};
if (!peer)
return -ENOMEM;
- unit->device.driver_data = peer;
+ dev_set_drvdata(&unit->device, peer);
+
peer->dev = dev;
peer->guid = (u64)device->config_rom[3] << 32 | device->config_rom[4];
peer->fifo = FWNET_NO_FIFO_ADDR;
struct fw_device *device = fw_parent_device(unit);
struct fw_card *card = device->card;
struct net_device *net;
+ bool allocated_netdev = false;
struct fwnet_device *dev;
unsigned max_mtu;
- bool new_netdev;
int ret;
mutex_lock(&fwnet_device_mutex);
dev = fwnet_dev_find(card);
if (dev) {
- new_netdev = false;
net = dev->netdev;
goto have_dev;
}
- new_netdev = true;
net = alloc_netdev(sizeof(*dev), "firewire%d", fwnet_init_dev);
if (net == NULL) {
ret = -ENOMEM;
goto out;
}
+ allocated_netdev = true;
SET_NETDEV_DEV(net, card->device);
dev = netdev_priv(net);
net->name, (unsigned long long)card->guid);
have_dev:
ret = fwnet_add_peer(dev, unit, device);
- if (ret && new_netdev) {
+ if (ret && allocated_netdev) {
unregister_netdev(net);
list_del(&dev->dev_link);
}
out:
- if (ret && new_netdev)
+ if (ret && allocated_netdev)
free_netdev(net);
mutex_unlock(&fwnet_device_mutex);
static int fwnet_remove(struct device *_dev)
{
- struct fwnet_peer *peer = _dev->driver_data;
+ struct fwnet_peer *peer = dev_get_drvdata(_dev);
struct fwnet_device *dev = peer->dev;
struct net_device *net;
struct fwnet_packet_task *ptask, *pt_next;
dev_kfree_skb_any(ptask->skb);
kmem_cache_free(fwnet_packet_task_cache, ptask);
}
+ list_del(&dev->dev_link);
+
free_netdev(net);
}
static void fwnet_update(struct fw_unit *unit)
{
struct fw_device *device = fw_parent_device(unit);
- struct fwnet_peer *peer = unit->device.driver_data;
+ struct fwnet_peer *peer = dev_get_drvdata(&unit->device);
int generation;
generation = device->generation;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff