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path: root/drivers/net/usb/pegasus.c
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Diffstat (limited to 'drivers/net/usb/pegasus.c')
-rw-r--r--drivers/net/usb/pegasus.c107
1 files changed, 66 insertions, 41 deletions
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 7914867110e..a8228d87c8c 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -93,17 +93,19 @@ module_param (msg_level, int, 0);
MODULE_PARM_DESC (msg_level, "Override default message level");
MODULE_DEVICE_TABLE(usb, pegasus_ids);
+static const struct net_device_ops pegasus_netdev_ops;
static int update_eth_regs_async(pegasus_t *);
/* Aargh!!! I _really_ hate such tweaks */
static void ctrl_callback(struct urb *urb)
{
pegasus_t *pegasus = urb->context;
+ int status = urb->status;
if (!pegasus)
return;
- switch (urb->status) {
+ switch (status) {
case 0:
if (pegasus->flags & ETH_REGS_CHANGE) {
pegasus->flags &= ~ETH_REGS_CHANGE;
@@ -119,7 +121,7 @@ static void ctrl_callback(struct urb *urb)
default:
if (netif_msg_drv(pegasus) && printk_ratelimit())
dev_dbg(&pegasus->intf->dev, "%s, status %d\n",
- __func__, urb->status);
+ __func__, status);
}
pegasus->flags &= ~ETH_REGS_CHANGED;
wake_up(&pegasus->ctrl_wait);
@@ -149,8 +151,8 @@ static int get_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
pegasus->dr.bRequestType = PEGASUS_REQT_READ;
pegasus->dr.bRequest = PEGASUS_REQ_GET_REGS;
pegasus->dr.wValue = cpu_to_le16(0);
- pegasus->dr.wIndex = cpu_to_le16p(&indx);
- pegasus->dr.wLength = cpu_to_le16p(&size);
+ pegasus->dr.wIndex = cpu_to_le16(indx);
+ pegasus->dr.wLength = cpu_to_le16(size);
pegasus->ctrl_urb->transfer_buffer_length = size;
usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
@@ -207,8 +209,8 @@ static int set_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
pegasus->dr.bRequestType = PEGASUS_REQT_WRITE;
pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS;
pegasus->dr.wValue = cpu_to_le16(0);
- pegasus->dr.wIndex = cpu_to_le16p(&indx);
- pegasus->dr.wLength = cpu_to_le16p(&size);
+ pegasus->dr.wIndex = cpu_to_le16(indx);
+ pegasus->dr.wLength = cpu_to_le16(size);
pegasus->ctrl_urb->transfer_buffer_length = size;
usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb,
@@ -260,7 +262,7 @@ static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data)
pegasus->dr.bRequestType = PEGASUS_REQT_WRITE;
pegasus->dr.bRequest = PEGASUS_REQ_SET_REG;
pegasus->dr.wValue = cpu_to_le16(data);
- pegasus->dr.wIndex = cpu_to_le16p(&indx);
+ pegasus->dr.wIndex = cpu_to_le16(indx);
pegasus->dr.wLength = cpu_to_le16(1);
pegasus->ctrl_urb->transfer_buffer_length = 1;
@@ -475,7 +477,7 @@ static inline void get_node_id(pegasus_t * pegasus, __u8 * id)
for (i = 0; i < 3; i++) {
read_eprom_word(pegasus, i, &w16);
- ((__le16 *) id)[i] = cpu_to_le16p(&w16);
+ ((__le16 *) id)[i] = cpu_to_le16(w16);
}
}
@@ -611,6 +613,7 @@ static void read_bulk_callback(struct urb *urb)
pegasus_t *pegasus = urb->context;
struct net_device *net;
int rx_status, count = urb->actual_length;
+ int status = urb->status;
u8 *buf = urb->transfer_buffer;
__u16 pkt_len;
@@ -621,7 +624,7 @@ static void read_bulk_callback(struct urb *urb)
if (!netif_device_present(net) || !netif_running(net))
return;
- switch (urb->status) {
+ switch (status) {
case 0:
break;
case -ETIME:
@@ -639,11 +642,11 @@ static void read_bulk_callback(struct urb *urb)
case -ECONNRESET:
case -ESHUTDOWN:
if (netif_msg_ifdown(pegasus))
- pr_debug("%s: rx unlink, %d\n", net->name, urb->status);
+ pr_debug("%s: rx unlink, %d\n", net->name, status);
return;
default:
if (netif_msg_rx_err(pegasus))
- pr_debug("%s: RX status %d\n", net->name, urb->status);
+ pr_debug("%s: RX status %d\n", net->name, status);
goto goon;
}
@@ -769,6 +772,7 @@ static void write_bulk_callback(struct urb *urb)
{
pegasus_t *pegasus = urb->context;
struct net_device *net;
+ int status = urb->status;
if (!pegasus)
return;
@@ -778,7 +782,7 @@ static void write_bulk_callback(struct urb *urb)
if (!netif_device_present(net) || !netif_running(net))
return;
- switch (urb->status) {
+ switch (status) {
case -EPIPE:
/* FIXME schedule_work() to clear the tx halt */
netif_stop_queue(net);
@@ -790,11 +794,11 @@ static void write_bulk_callback(struct urb *urb)
case -ECONNRESET:
case -ESHUTDOWN:
if (netif_msg_ifdown(pegasus))
- pr_debug("%s: tx unlink, %d\n", net->name, urb->status);
+ pr_debug("%s: tx unlink, %d\n", net->name, status);
return;
default:
if (netif_msg_tx_err(pegasus))
- pr_info("%s: TX status %d\n", net->name, urb->status);
+ pr_info("%s: TX status %d\n", net->name, status);
/* FALL THROUGH */
case 0:
break;
@@ -808,13 +812,13 @@ static void intr_callback(struct urb *urb)
{
pegasus_t *pegasus = urb->context;
struct net_device *net;
- int status;
+ int res, status = urb->status;
if (!pegasus)
return;
net = pegasus->net;
- switch (urb->status) {
+ switch (status) {
case 0:
break;
case -ECONNRESET: /* unlink */
@@ -827,7 +831,7 @@ static void intr_callback(struct urb *urb)
*/
if (netif_msg_timer(pegasus))
pr_debug("%s: intr status %d\n", net->name,
- urb->status);
+ status);
}
if (urb->actual_length >= 6) {
@@ -854,12 +858,12 @@ static void intr_callback(struct urb *urb)
pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4];
}
- status = usb_submit_urb(urb, GFP_ATOMIC);
- if (status == -ENODEV)
+ res = usb_submit_urb(urb, GFP_ATOMIC);
+ if (res == -ENODEV)
netif_device_detach(pegasus->net);
- if (status && netif_msg_timer(pegasus))
+ if (res && netif_msg_timer(pegasus))
printk(KERN_ERR "%s: can't resubmit interrupt urb, %d\n",
- net->name, status);
+ net->name, res);
}
static void pegasus_tx_timeout(struct net_device *net)
@@ -1213,7 +1217,7 @@ static void pegasus_set_multicast(struct net_device *net)
pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST;
pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
if (netif_msg_link(pegasus))
- pr_info("%s: set allmulti\n", net->name);
+ pr_debug("%s: set allmulti\n", net->name);
} else {
pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST;
pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
@@ -1273,6 +1277,7 @@ static inline void setup_pegasus_II(pegasus_t * pegasus)
}
+static int pegasus_count;
static struct workqueue_struct *pegasus_workqueue = NULL;
#define CARRIER_CHECK_DELAY (2 * HZ)
@@ -1301,6 +1306,18 @@ static int pegasus_blacklisted(struct usb_device *udev)
return 0;
}
+/* we rely on probe() and remove() being serialized so we
+ * don't need extra locking on pegasus_count.
+ */
+static void pegasus_dec_workqueue(void)
+{
+ pegasus_count--;
+ if (pegasus_count == 0) {
+ destroy_workqueue(pegasus_workqueue);
+ pegasus_workqueue = NULL;
+ }
+}
+
static int pegasus_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@@ -1309,14 +1326,18 @@ static int pegasus_probe(struct usb_interface *intf,
pegasus_t *pegasus;
int dev_index = id - pegasus_ids;
int res = -ENOMEM;
- DECLARE_MAC_BUF(mac);
- usb_get_dev(dev);
+ if (pegasus_blacklisted(dev))
+ return -ENODEV;
- if (pegasus_blacklisted(dev)) {
- res = -ENODEV;
- goto out;
+ if (pegasus_count == 0) {
+ pegasus_workqueue = create_singlethread_workqueue("pegasus");
+ if (!pegasus_workqueue)
+ return -ENOMEM;
}
+ pegasus_count++;
+
+ usb_get_dev(dev);
net = alloc_etherdev(sizeof(struct pegasus));
if (!net) {
@@ -1340,14 +1361,10 @@ static int pegasus_probe(struct usb_interface *intf,
pegasus->intf = intf;
pegasus->usb = dev;
pegasus->net = net;
- net->open = pegasus_open;
- net->stop = pegasus_close;
+
+
net->watchdog_timeo = PEGASUS_TX_TIMEOUT;
- net->tx_timeout = pegasus_tx_timeout;
- net->do_ioctl = pegasus_ioctl;
- net->hard_start_xmit = pegasus_start_xmit;
- net->set_multicast_list = pegasus_set_multicast;
- net->get_stats = pegasus_netdev_stats;
+ net->netdev_ops = &pegasus_netdev_ops;
SET_ETHTOOL_OPS(net, &ops);
pegasus->mii.dev = net;
pegasus->mii.mdio_read = mdio_read;
@@ -1386,10 +1403,10 @@ static int pegasus_probe(struct usb_interface *intf,
queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
CARRIER_CHECK_DELAY);
- dev_info(&intf->dev, "%s, %s, %s\n",
+ dev_info(&intf->dev, "%s, %s, %pM\n",
net->name,
usb_dev_id[dev_index].name,
- print_mac(mac, net->dev_addr));
+ net->dev_addr);
return 0;
out3:
@@ -1401,6 +1418,7 @@ out1:
free_netdev(net);
out:
usb_put_dev(dev);
+ pegasus_dec_workqueue();
return res;
}
@@ -1426,6 +1444,7 @@ static void pegasus_disconnect(struct usb_interface *intf)
pegasus->rx_skb = NULL;
}
free_netdev(pegasus->net);
+ pegasus_dec_workqueue();
}
static int pegasus_suspend (struct usb_interface *intf, pm_message_t message)
@@ -1460,6 +1479,16 @@ static int pegasus_resume (struct usb_interface *intf)
return 0;
}
+static const struct net_device_ops pegasus_netdev_ops = {
+ .ndo_open = pegasus_open,
+ .ndo_stop = pegasus_close,
+ .ndo_do_ioctl = pegasus_ioctl,
+ .ndo_start_xmit = pegasus_start_xmit,
+ .ndo_set_multicast_list = pegasus_set_multicast,
+ .ndo_get_stats = pegasus_netdev_stats,
+ .ndo_tx_timeout = pegasus_tx_timeout,
+};
+
static struct usb_driver pegasus_driver = {
.name = driver_name,
.probe = pegasus_probe,
@@ -1469,7 +1498,7 @@ static struct usb_driver pegasus_driver = {
.resume = pegasus_resume,
};
-static void parse_id(char *id)
+static void __init parse_id(char *id)
{
unsigned int vendor_id=0, device_id=0, flags=0, i=0;
char *token, *name=NULL;
@@ -1505,15 +1534,11 @@ static int __init pegasus_init(void)
pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION);
if (devid)
parse_id(devid);
- pegasus_workqueue = create_singlethread_workqueue("pegasus");
- if (!pegasus_workqueue)
- return -ENOMEM;
return usb_register(&pegasus_driver);
}
static void __exit pegasus_exit(void)
{
- destroy_workqueue(pegasus_workqueue);
usb_deregister(&pegasus_driver);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-10 14:20:39 +0000