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-rw-r--r--drivers/net/usb/catc.c5
-rw-r--r--drivers/net/usb/cdc-phonet.c6
-rw-r--r--drivers/net/usb/hso.c5
-rw-r--r--drivers/net/usb/kaweth.c7
-rw-r--r--drivers/net/usb/pegasus.c5
-rw-r--r--drivers/net/usb/rndis_host.c50
-rw-r--r--drivers/net/usb/rtl8150.c5
-rw-r--r--drivers/net/usb/smsc95xx.c5
-rw-r--r--drivers/net/usb/usbnet.c96
9 files changed, 126 insertions, 58 deletions
diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c
index b9dd42574288..0ffc0c6d03be 100644
--- a/drivers/net/usb/catc.c
+++ b/drivers/net/usb/catc.c
@@ -411,7 +411,8 @@ static void catc_tx_done(struct urb *urb)
spin_unlock_irqrestore(&catc->tx_lock, flags);
}
-static int catc_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t catc_start_xmit(struct sk_buff *skb,
+ struct net_device *netdev)
{
struct catc *catc = netdev_priv(netdev);
unsigned long flags;
@@ -448,7 +449,7 @@ static int catc_start_xmit(struct sk_buff *skb, struct net_device *netdev)
dev_kfree_skb(skb);
- return 0;
+ return NETDEV_TX_OK;
}
static void catc_tx_timeout(struct net_device *netdev)
diff --git a/drivers/net/usb/cdc-phonet.c b/drivers/net/usb/cdc-phonet.c
index 792af72da8ac..0ca5916ca8df 100644
--- a/drivers/net/usb/cdc-phonet.c
+++ b/drivers/net/usb/cdc-phonet.c
@@ -55,7 +55,7 @@ static void rx_complete(struct urb *req);
/*
* Network device callbacks
*/
-static int usbpn_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t usbpn_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct usbpn_dev *pnd = netdev_priv(dev);
struct urb *req = NULL;
@@ -82,12 +82,12 @@ static int usbpn_xmit(struct sk_buff *skb, struct net_device *dev)
if (pnd->tx_queue >= dev->tx_queue_len)
netif_stop_queue(dev);
spin_unlock_irqrestore(&pnd->tx_lock, flags);
- return 0;
+ return NETDEV_TX_OK;
drop:
dev_kfree_skb(skb);
dev->stats.tx_dropped++;
- return 0;
+ return NETDEV_TX_OK;
}
static void tx_complete(struct urb *req)
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index f8c6d7ea7264..123f9b84dd29 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -771,7 +771,8 @@ static void write_bulk_callback(struct urb *urb)
}
/* called by kernel when we need to transmit a packet */
-static int hso_net_start_xmit(struct sk_buff *skb, struct net_device *net)
+static netdev_tx_t hso_net_start_xmit(struct sk_buff *skb,
+ struct net_device *net)
{
struct hso_net *odev = netdev_priv(net);
int result;
@@ -780,7 +781,7 @@ static int hso_net_start_xmit(struct sk_buff *skb, struct net_device *net)
netif_stop_queue(net);
if (hso_get_activity(odev->parent) == -EAGAIN) {
odev->skb_tx_buf = skb;
- return 0;
+ return NETDEV_TX_OK;
}
/* log if asked */
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index 1f9ec29fce50..7f397365b437 100644
--- a/drivers/net/usb/kaweth.c
+++ b/drivers/net/usb/kaweth.c
@@ -803,7 +803,8 @@ static void kaweth_usb_transmit_complete(struct urb *urb)
/****************************************************************
* kaweth_start_xmit
****************************************************************/
-static int kaweth_start_xmit(struct sk_buff *skb, struct net_device *net)
+static netdev_tx_t kaweth_start_xmit(struct sk_buff *skb,
+ struct net_device *net)
{
struct kaweth_device *kaweth = netdev_priv(net);
__le16 *private_header;
@@ -829,7 +830,7 @@ static int kaweth_start_xmit(struct sk_buff *skb, struct net_device *net)
kaweth->stats.tx_errors++;
netif_start_queue(net);
spin_unlock_irq(&kaweth->device_lock);
- return 0;
+ return NETDEV_TX_OK;
}
}
@@ -864,7 +865,7 @@ skip:
spin_unlock_irq(&kaweth->device_lock);
- return 0;
+ return NETDEV_TX_OK;
}
/****************************************************************
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 631d269ac980..7b935b846424 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -876,7 +876,8 @@ static void pegasus_tx_timeout(struct net_device *net)
pegasus->stats.tx_errors++;
}
-static int pegasus_start_xmit(struct sk_buff *skb, struct net_device *net)
+static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb,
+ struct net_device *net)
{
pegasus_t *pegasus = netdev_priv(net);
int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3;
@@ -914,7 +915,7 @@ static int pegasus_start_xmit(struct sk_buff *skb, struct net_device *net)
}
dev_kfree_skb(skb);
- return 0;
+ return NETDEV_TX_OK;
}
static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev)
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index 2232232b7989..d032bba9bc4c 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -65,6 +65,32 @@ void rndis_status(struct usbnet *dev, struct urb *urb)
EXPORT_SYMBOL_GPL(rndis_status);
/*
+ * RNDIS indicate messages.
+ */
+static void rndis_msg_indicate(struct usbnet *dev, struct rndis_indicate *msg,
+ int buflen)
+{
+ struct cdc_state *info = (void *)&dev->data;
+ struct device *udev = &info->control->dev;
+
+ if (dev->driver_info->indication) {
+ dev->driver_info->indication(dev, msg, buflen);
+ } else {
+ switch (msg->status) {
+ case RNDIS_STATUS_MEDIA_CONNECT:
+ dev_info(udev, "rndis media connect\n");
+ break;
+ case RNDIS_STATUS_MEDIA_DISCONNECT:
+ dev_info(udev, "rndis media disconnect\n");
+ break;
+ default:
+ dev_info(udev, "rndis indication: 0x%08x\n",
+ le32_to_cpu(msg->status));
+ }
+ }
+}
+
+/*
* RPC done RNDIS-style. Caller guarantees:
* - message is properly byteswapped
* - there's no other request pending
@@ -143,27 +169,9 @@ int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen)
request_id, xid);
/* then likely retry */
} else switch (buf->msg_type) {
- case RNDIS_MSG_INDICATE: { /* fault/event */
- struct rndis_indicate *msg = (void *)buf;
- int state = 0;
-
- switch (msg->status) {
- case RNDIS_STATUS_MEDIA_CONNECT:
- state = 1;
- case RNDIS_STATUS_MEDIA_DISCONNECT:
- dev_info(&info->control->dev,
- "rndis media %sconnect\n",
- !state?"dis":"");
- if (dev->driver_info->link_change)
- dev->driver_info->link_change(
- dev, state);
- break;
- default:
- dev_info(&info->control->dev,
- "rndis indication: 0x%08x\n",
- le32_to_cpu(msg->status));
- }
- }
+ case RNDIS_MSG_INDICATE: /* fault/event */
+ rndis_msg_indicate(dev, (void *)buf, buflen);
+
break;
case RNDIS_MSG_KEEPALIVE: { /* ping */
struct rndis_keepalive_c *msg = (void *)buf;
diff --git a/drivers/net/usb/rtl8150.c b/drivers/net/usb/rtl8150.c
index fcc6fa0905d1..d9f84f22fbc7 100644
--- a/drivers/net/usb/rtl8150.c
+++ b/drivers/net/usb/rtl8150.c
@@ -727,7 +727,8 @@ static void rtl8150_set_multicast(struct net_device *netdev)
netif_wake_queue(netdev);
}
-static int rtl8150_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t rtl8150_start_xmit(struct sk_buff *skb,
+ struct net_device *netdev)
{
rtl8150_t *dev = netdev_priv(netdev);
int count, res;
@@ -753,7 +754,7 @@ static int rtl8150_start_xmit(struct sk_buff *skb, struct net_device *netdev)
netdev->trans_start = jiffies;
}
- return 0;
+ return NETDEV_TX_OK;
}
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index fe045896406b..09bd6351f64c 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -220,11 +220,6 @@ static int smsc95xx_eeprom_confirm_not_busy(struct usbnet *dev)
do {
smsc95xx_read_reg(dev, E2P_CMD, &val);
- if (!(val & E2P_CMD_LOADED_)) {
- devwarn(dev, "No EEPROM present");
- return -EIO;
- }
-
if (!(val & E2P_CMD_BUSY_))
return 0;
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index edfd9e10ceba..d166e3385c64 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -233,6 +233,11 @@ void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
{
int status;
+ if (test_bit(EVENT_RX_PAUSED, &dev->flags)) {
+ skb_queue_tail(&dev->rxq_pause, skb);
+ return;
+ }
+
skb->protocol = eth_type_trans (skb, dev->net);
dev->net->stats.rx_packets++;
dev->net->stats.rx_bytes += skb->len;
@@ -526,6 +531,41 @@ static void intr_complete (struct urb *urb)
}
/*-------------------------------------------------------------------------*/
+void usbnet_pause_rx(struct usbnet *dev)
+{
+ set_bit(EVENT_RX_PAUSED, &dev->flags);
+
+ if (netif_msg_rx_status(dev))
+ devdbg(dev, "paused rx queue enabled");
+}
+EXPORT_SYMBOL_GPL(usbnet_pause_rx);
+
+void usbnet_resume_rx(struct usbnet *dev)
+{
+ struct sk_buff *skb;
+ int num = 0;
+
+ clear_bit(EVENT_RX_PAUSED, &dev->flags);
+
+ while ((skb = skb_dequeue(&dev->rxq_pause)) != NULL) {
+ usbnet_skb_return(dev, skb);
+ num++;
+ }
+
+ tasklet_schedule(&dev->bh);
+
+ if (netif_msg_rx_status(dev))
+ devdbg(dev, "paused rx queue disabled, %d skbs requeued", num);
+}
+EXPORT_SYMBOL_GPL(usbnet_resume_rx);
+
+void usbnet_purge_paused_rxq(struct usbnet *dev)
+{
+ skb_queue_purge(&dev->rxq_pause);
+}
+EXPORT_SYMBOL_GPL(usbnet_purge_paused_rxq);
+
+/*-------------------------------------------------------------------------*/
// unlink pending rx/tx; completion handlers do all other cleanup
@@ -575,7 +615,9 @@ EXPORT_SYMBOL_GPL(usbnet_unlink_rx_urbs);
int usbnet_stop (struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
+ struct driver_info *info = dev->driver_info;
int temp;
+ int retval;
DECLARE_WAIT_QUEUE_HEAD_ONSTACK (unlink_wakeup);
DECLARE_WAITQUEUE (wait, current);
@@ -587,24 +629,42 @@ int usbnet_stop (struct net_device *net)
net->stats.rx_errors, net->stats.tx_errors
);
- // ensure there are no more active urbs
- add_wait_queue (&unlink_wakeup, &wait);
- dev->wait = &unlink_wakeup;
- temp = unlink_urbs (dev, &dev->txq) + unlink_urbs (dev, &dev->rxq);
+ /* allow minidriver to stop correctly (wireless devices to turn off
+ * radio etc) */
+ if (info->stop) {
+ retval = info->stop(dev);
+ if (retval < 0 && netif_msg_ifdown(dev))
+ devinfo(dev,
+ "stop fail (%d) usbnet usb-%s-%s, %s",
+ retval,
+ dev->udev->bus->bus_name, dev->udev->devpath,
+ info->description);
+ }
- // maybe wait for deletions to finish.
- while (!skb_queue_empty(&dev->rxq)
- && !skb_queue_empty(&dev->txq)
- && !skb_queue_empty(&dev->done)) {
- msleep(UNLINK_TIMEOUT_MS);
- if (netif_msg_ifdown (dev))
- devdbg (dev, "waited for %d urb completions", temp);
+ if (!(info->flags & FLAG_AVOID_UNLINK_URBS)) {
+ /* ensure there are no more active urbs */
+ add_wait_queue(&unlink_wakeup, &wait);
+ dev->wait = &unlink_wakeup;
+ temp = unlink_urbs(dev, &dev->txq) +
+ unlink_urbs(dev, &dev->rxq);
+
+ /* maybe wait for deletions to finish. */
+ while (!skb_queue_empty(&dev->rxq)
+ && !skb_queue_empty(&dev->txq)
+ && !skb_queue_empty(&dev->done)) {
+ msleep(UNLINK_TIMEOUT_MS);
+ if (netif_msg_ifdown(dev))
+ devdbg(dev, "waited for %d urb completions",
+ temp);
+ }
+ dev->wait = NULL;
+ remove_wait_queue(&unlink_wakeup, &wait);
}
- dev->wait = NULL;
- remove_wait_queue (&unlink_wakeup, &wait);
usb_kill_urb(dev->interrupt);
+ usbnet_purge_paused_rxq(dev);
+
/* deferred work (task, timer, softirq) must also stop.
* can't flush_scheduled_work() until we drop rtnl (later),
* else workers could deadlock; so make workers a NOP.
@@ -947,15 +1007,16 @@ EXPORT_SYMBOL_GPL(usbnet_tx_timeout);
/*-------------------------------------------------------------------------*/
-int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net)
+netdev_tx_t usbnet_start_xmit (struct sk_buff *skb,
+ struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
int length;
- int retval = NET_XMIT_SUCCESS;
struct urb *urb = NULL;
struct skb_data *entry;
struct driver_info *info = dev->driver_info;
unsigned long flags;
+ int retval;
// some devices want funky USB-level framing, for
// win32 driver (usually) and/or hardware quirks
@@ -1019,7 +1080,6 @@ int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net)
if (netif_msg_tx_err (dev))
devdbg (dev, "drop, code %d", retval);
drop:
- retval = NET_XMIT_SUCCESS;
dev->net->stats.tx_dropped++;
if (skb)
dev_kfree_skb_any (skb);
@@ -1028,7 +1088,7 @@ drop:
devdbg (dev, "> tx, len %d, type 0x%x",
length, skb->protocol);
}
- return retval;
+ return NETDEV_TX_OK;
}
EXPORT_SYMBOL_GPL(usbnet_start_xmit);
@@ -1095,7 +1155,6 @@ static void usbnet_bh (unsigned long param)
}
-
/*-------------------------------------------------------------------------
*
* USB Device Driver support
@@ -1192,6 +1251,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
skb_queue_head_init (&dev->rxq);
skb_queue_head_init (&dev->txq);
skb_queue_head_init (&dev->done);
+ skb_queue_head_init(&dev->rxq_pause);
dev->bh.func = usbnet_bh;
dev->bh.data = (unsigned long) dev;
INIT_WORK (&dev->kevent, kevent);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.