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-rw-r--r--drivers/net/usb/Kconfig8
-rw-r--r--drivers/net/usb/Makefile4
-rw-r--r--drivers/net/usb/hso.c335
-rw-r--r--drivers/net/usb/mcs7830.c2
-rw-r--r--drivers/net/usb/pegasus.c20
-rw-r--r--drivers/net/usb/smsc95xx.c1225
-rw-r--r--drivers/net/usb/smsc95xx.h253
-rw-r--r--drivers/net/usb/usbnet.c3
8 files changed, 1738 insertions, 112 deletions
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 0973b6e37024..8ee21030e9ac 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -188,6 +188,14 @@ config USB_NET_DM9601
This option adds support for Davicom DM9601 based USB 1.1
10/100 Ethernet adapters.
+config USB_NET_SMSC95XX
+ tristate "SMSC LAN95XX based USB 2.0 10/100 ethernet devices"
+ depends on USB_USBNET
+ select CRC32
+ help
+ This option adds support for SMSC LAN95XX based USB 2.0
+ 10/100 Ethernet adapters.
+
config USB_NET_GL620A
tristate "GeneSys GL620USB-A based cables"
depends on USB_USBNET
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index 24800c157f98..88a87eeb376a 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_USB_HSO) += hso.o
obj-$(CONFIG_USB_NET_AX8817X) += asix.o
obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o
obj-$(CONFIG_USB_NET_DM9601) += dm9601.o
+obj-$(CONFIG_USB_NET_SMSC95XX) += smsc95xx.o
obj-$(CONFIG_USB_NET_GL620A) += gl620a.o
obj-$(CONFIG_USB_NET_NET1080) += net1080.o
obj-$(CONFIG_USB_NET_PLUSB) += plusb.o
@@ -19,6 +20,3 @@ obj-$(CONFIG_USB_NET_ZAURUS) += zaurus.o
obj-$(CONFIG_USB_NET_MCS7830) += mcs7830.o
obj-$(CONFIG_USB_USBNET) += usbnet.o
-ifeq ($(CONFIG_USB_DEBUG),y)
-EXTRA_CFLAGS += -DDEBUG
-endif
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 6e42b5a8c22b..1164c52e2c0a 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -92,9 +92,6 @@
#define HSO_NET_TX_TIMEOUT (HZ*10)
-/* Serial port defines and structs. */
-#define HSO_SERIAL_FLAG_RX_SENT 0
-
#define HSO_SERIAL_MAGIC 0x48534f31
/* Number of ttys to handle */
@@ -179,6 +176,12 @@ struct hso_net {
unsigned long flags;
};
+enum rx_ctrl_state{
+ RX_IDLE,
+ RX_SENT,
+ RX_PENDING
+};
+
struct hso_serial {
struct hso_device *parent;
int magic;
@@ -205,7 +208,7 @@ struct hso_serial {
struct usb_endpoint_descriptor *in_endp;
struct usb_endpoint_descriptor *out_endp;
- unsigned long flags;
+ enum rx_ctrl_state rx_state;
u8 rts_state;
u8 dtr_state;
unsigned tx_urb_used:1;
@@ -216,6 +219,15 @@ struct hso_serial {
spinlock_t serial_lock;
int (*write_data) (struct hso_serial *serial);
+ /* Hacks required to get flow control
+ * working on the serial receive buffers
+ * so as not to drop characters on the floor.
+ */
+ int curr_rx_urb_idx;
+ u16 curr_rx_urb_offset;
+ u8 rx_urb_filled[MAX_RX_URBS];
+ struct tasklet_struct unthrottle_tasklet;
+ struct work_struct retry_unthrottle_workqueue;
};
struct hso_device {
@@ -271,7 +283,7 @@ struct hso_device {
static int hso_serial_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
static void ctrl_callback(struct urb *urb);
-static void put_rxbuf_data(struct urb *urb, struct hso_serial *serial);
+static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial);
static void hso_kick_transmit(struct hso_serial *serial);
/* Helper functions */
static int hso_mux_submit_intr_urb(struct hso_shared_int *mux_int,
@@ -287,6 +299,8 @@ static int hso_start_net_device(struct hso_device *hso_dev);
static void hso_free_shared_int(struct hso_shared_int *shared_int);
static int hso_stop_net_device(struct hso_device *hso_dev);
static void hso_serial_ref_free(struct kref *ref);
+static void hso_std_serial_read_bulk_callback(struct urb *urb);
+static int hso_mux_serial_read(struct hso_serial *serial);
static void async_get_intf(struct work_struct *data);
static void async_put_intf(struct work_struct *data);
static int hso_put_activity(struct hso_device *hso_dev);
@@ -458,6 +472,17 @@ static ssize_t hso_sysfs_show_porttype(struct device *dev,
}
static DEVICE_ATTR(hsotype, S_IRUGO, hso_sysfs_show_porttype, NULL);
+static int hso_urb_to_index(struct hso_serial *serial, struct urb *urb)
+{
+ int idx;
+
+ for (idx = 0; idx < serial->num_rx_urbs; idx++)
+ if (serial->rx_urb[idx] == urb)
+ return idx;
+ dev_err(serial->parent->dev, "hso_urb_to_index failed\n");
+ return -1;
+}
+
/* converts mux value to a port spec value */
static u32 hso_mux_to_port(int mux)
{
@@ -1039,6 +1064,158 @@ static void _hso_serial_set_termios(struct tty_struct *tty,
return;
}
+static void hso_resubmit_rx_bulk_urb(struct hso_serial *serial, struct urb *urb)
+{
+ int result;
+#ifdef CONFIG_HSO_AUTOPM
+ usb_mark_last_busy(urb->dev);
+#endif
+ /* We are done with this URB, resubmit it. Prep the USB to wait for
+ * another frame */
+ usb_fill_bulk_urb(urb, serial->parent->usb,
+ usb_rcvbulkpipe(serial->parent->usb,
+ serial->in_endp->
+ bEndpointAddress & 0x7F),
+ urb->transfer_buffer, serial->rx_data_length,
+ hso_std_serial_read_bulk_callback, serial);
+ /* Give this to the USB subsystem so it can tell us when more data
+ * arrives. */
+ result = usb_submit_urb(urb, GFP_ATOMIC);
+ if (result) {
+ dev_err(&urb->dev->dev, "%s failed submit serial rx_urb %d\n",
+ __func__, result);
+ }
+}
+
+
+
+
+static void put_rxbuf_data_and_resubmit_bulk_urb(struct hso_serial *serial)
+{
+ int count;
+ struct urb *curr_urb;
+
+ while (serial->rx_urb_filled[serial->curr_rx_urb_idx]) {
+ curr_urb = serial->rx_urb[serial->curr_rx_urb_idx];
+ count = put_rxbuf_data(curr_urb, serial);
+ if (count == -1)
+ return;
+ if (count == 0) {
+ serial->curr_rx_urb_idx++;
+ if (serial->curr_rx_urb_idx >= serial->num_rx_urbs)
+ serial->curr_rx_urb_idx = 0;
+ hso_resubmit_rx_bulk_urb(serial, curr_urb);
+ }
+ }
+}
+
+static void put_rxbuf_data_and_resubmit_ctrl_urb(struct hso_serial *serial)
+{
+ int count = 0;
+ struct urb *urb;
+
+ urb = serial->rx_urb[0];
+ if (serial->open_count > 0) {
+ count = put_rxbuf_data(urb, serial);
+ if (count == -1)
+ return;
+ }
+ /* Re issue a read as long as we receive data. */
+
+ if (count == 0 && ((urb->actual_length != 0) ||
+ (serial->rx_state == RX_PENDING))) {
+ serial->rx_state = RX_SENT;
+ hso_mux_serial_read(serial);
+ } else
+ serial->rx_state = RX_IDLE;
+}
+
+
+/* read callback for Diag and CS port */
+static void hso_std_serial_read_bulk_callback(struct urb *urb)
+{
+ struct hso_serial *serial = urb->context;
+ int status = urb->status;
+
+ /* sanity check */
+ if (!serial) {
+ D1("serial == NULL");
+ return;
+ } else if (status) {
+ log_usb_status(status, __func__);
+ return;
+ }
+
+ D4("\n--- Got serial_read_bulk callback %02x ---", status);
+ D1("Actual length = %d\n", urb->actual_length);
+ DUMP1(urb->transfer_buffer, urb->actual_length);
+
+ /* Anyone listening? */
+ if (serial->open_count == 0)
+ return;
+
+ if (status == 0) {
+ if (serial->parent->port_spec & HSO_INFO_CRC_BUG) {
+ u32 rest;
+ u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF };
+ rest =
+ urb->actual_length %
+ serial->in_endp->wMaxPacketSize;
+ if (((rest == 5) || (rest == 6))
+ && !memcmp(((u8 *) urb->transfer_buffer) +
+ urb->actual_length - 4, crc_check, 4)) {
+ urb->actual_length -= 4;
+ }
+ }
+ /* Valid data, handle RX data */
+ spin_lock(&serial->serial_lock);
+ serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 1;
+ put_rxbuf_data_and_resubmit_bulk_urb(serial);
+ spin_unlock(&serial->serial_lock);
+ } else if (status == -ENOENT || status == -ECONNRESET) {
+ /* Unlinked - check for throttled port. */
+ D2("Port %d, successfully unlinked urb", serial->minor);
+ spin_lock(&serial->serial_lock);
+ serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 0;
+ hso_resubmit_rx_bulk_urb(serial, urb);
+ spin_unlock(&serial->serial_lock);
+ } else {
+ D2("Port %d, status = %d for read urb", serial->minor, status);
+ return;
+ }
+}
+
+/*
+ * This needs to be a tasklet otherwise we will
+ * end up recursively calling this function.
+ */
+void hso_unthrottle_tasklet(struct hso_serial *serial)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&serial->serial_lock, flags);
+ if ((serial->parent->port_spec & HSO_INTF_MUX))
+ put_rxbuf_data_and_resubmit_ctrl_urb(serial);
+ else
+ put_rxbuf_data_and_resubmit_bulk_urb(serial);
+ spin_unlock_irqrestore(&serial->serial_lock, flags);
+}
+
+static void hso_unthrottle(struct tty_struct *tty)
+{
+ struct hso_serial *serial = get_serial_by_tty(tty);
+
+ tasklet_hi_schedule(&serial->unthrottle_tasklet);
+}
+
+void hso_unthrottle_workfunc(struct work_struct *work)
+{
+ struct hso_serial *serial =
+ container_of(work, struct hso_serial,
+ retry_unthrottle_workqueue);
+ hso_unthrottle_tasklet(serial);
+}
+
/* open the requested serial port */
static int hso_serial_open(struct tty_struct *tty, struct file *filp)
{
@@ -1064,13 +1241,18 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
tty->driver_data = serial;
serial->tty = tty;
- /* check for port allready opened, if not set the termios */
+ /* check for port already opened, if not set the termios */
serial->open_count++;
if (serial->open_count == 1) {
tty->low_latency = 1;
- serial->flags = 0;
+ serial->rx_state = RX_IDLE;
/* Force default termio settings */
_hso_serial_set_termios(tty, NULL);
+ tasklet_init(&serial->unthrottle_tasklet,
+ (void (*)(unsigned long))hso_unthrottle_tasklet,
+ (unsigned long)serial);
+ INIT_WORK(&serial->retry_unthrottle_workqueue,
+ hso_unthrottle_workfunc);
result = hso_start_serial_device(serial->parent, GFP_KERNEL);
if (result) {
hso_stop_serial_device(serial->parent);
@@ -1117,9 +1299,13 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp)
}
if (!usb_gone)
hso_stop_serial_device(serial->parent);
+ tasklet_kill(&serial->unthrottle_tasklet);
+ cancel_work_sync(&serial->retry_unthrottle_workqueue);
}
+
if (!usb_gone)
usb_autopm_put_interface(serial->parent->interface);
+
mutex_unlock(&serial->parent->mutex);
}
@@ -1422,15 +1608,21 @@ static void intr_callback(struct urb *urb)
(1 << i));
if (serial != NULL) {
D1("Pending read interrupt on port %d\n", i);
- if (!test_and_set_bit(HSO_SERIAL_FLAG_RX_SENT,
- &serial->flags)) {
+ spin_lock(&serial->serial_lock);
+ if (serial->rx_state == RX_IDLE) {
/* Setup and send a ctrl req read on
* port i */
- hso_mux_serial_read(serial);
+ if (!serial->rx_urb_filled[0]) {
+ serial->rx_state = RX_SENT;
+ hso_mux_serial_read(serial);
+ } else
+ serial->rx_state = RX_PENDING;
+
} else {
D1("Already pending a read on "
"port %d\n", i);
}
+ spin_unlock(&serial->serial_lock);
}
}
}
@@ -1532,16 +1724,10 @@ static void ctrl_callback(struct urb *urb)
if (req->bRequestType ==
(USB_DIR_IN | USB_TYPE_OPTION_VENDOR | USB_RECIP_INTERFACE)) {
/* response to a read command */
- if (serial->open_count > 0) {
- /* handle RX data the normal way */
- put_rxbuf_data(urb, serial);
- }
-
- /* Re issue a read as long as we receive data. */
- if (urb->actual_length != 0)
- hso_mux_serial_read(serial);
- else
- clear_bit(HSO_SERIAL_FLAG_RX_SENT, &serial->flags);
+ serial->rx_urb_filled[0] = 1;
+ spin_lock(&serial->serial_lock);
+ put_rxbuf_data_and_resubmit_ctrl_urb(serial);
+ spin_unlock(&serial->serial_lock);
} else {
hso_put_activity(serial->parent);
if (serial->tty)
@@ -1552,91 +1738,42 @@ static void ctrl_callback(struct urb *urb)
}
/* handle RX data for serial port */
-static void put_rxbuf_data(struct urb *urb, struct hso_serial *serial)
+static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial)
{
struct tty_struct *tty = serial->tty;
-
+ int write_length_remaining = 0;
+ int curr_write_len;
/* Sanity check */
if (urb == NULL || serial == NULL) {
D1("serial = NULL");
- return;
+ return -2;
}
/* Push data to tty */
- if (tty && urb->actual_length) {
+ if (tty) {
+ write_length_remaining = urb->actual_length -
+ serial->curr_rx_urb_offset;
D1("data to push to tty");
- tty_insert_flip_string(tty, urb->transfer_buffer,
- urb->actual_length);
- tty_flip_buffer_push(tty);
- }
-}
-
-/* read callback for Diag and CS port */
-static void hso_std_serial_read_bulk_callback(struct urb *urb)
-{
- struct hso_serial *serial = urb->context;
- int result;
- int status = urb->status;
-
- /* sanity check */
- if (!serial) {
- D1("serial == NULL");
- return;
- } else if (status) {
- log_usb_status(status, __func__);
- return;
- }
-
- D4("\n--- Got serial_read_bulk callback %02x ---", status);
- D1("Actual length = %d\n", urb->actual_length);
- DUMP1(urb->transfer_buffer, urb->actual_length);
-
- /* Anyone listening? */
- if (serial->open_count == 0)
- return;
-
- if (status == 0) {
- if (serial->parent->port_spec & HSO_INFO_CRC_BUG) {
- u32 rest;
- u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF };
- rest =
- urb->actual_length %
- serial->in_endp->wMaxPacketSize;
- if (((rest == 5) || (rest == 6))
- && !memcmp(((u8 *) urb->transfer_buffer) +
- urb->actual_length - 4, crc_check, 4)) {
- urb->actual_length -= 4;
- }
+ while (write_length_remaining) {
+ if (test_bit(TTY_THROTTLED, &tty->flags))
+ return -1;
+ curr_write_len = tty_insert_flip_string
+ (tty, urb->transfer_buffer +
+ serial->curr_rx_urb_offset,
+ write_length_remaining);
+ serial->curr_rx_urb_offset += curr_write_len;
+ write_length_remaining -= curr_write_len;
+ tty_flip_buffer_push(tty);
}
- /* Valid data, handle RX data */
- put_rxbuf_data(urb, serial);
- } else if (status == -ENOENT || status == -ECONNRESET) {
- /* Unlinked - check for throttled port. */
- D2("Port %d, successfully unlinked urb", serial->minor);
- } else {
- D2("Port %d, status = %d for read urb", serial->minor, status);
- return;
}
-
- usb_mark_last_busy(urb->dev);
-
- /* We are done with this URB, resubmit it. Prep the USB to wait for
- * another frame */
- usb_fill_bulk_urb(urb, serial->parent->usb,
- usb_rcvbulkpipe(serial->parent->usb,
- serial->in_endp->
- bEndpointAddress & 0x7F),
- urb->transfer_buffer, serial->rx_data_length,
- hso_std_serial_read_bulk_callback, serial);
- /* Give this to the USB subsystem so it can tell us when more data
- * arrives. */
- result = usb_submit_urb(urb, GFP_ATOMIC);
- if (result) {
- dev_err(&urb->dev->dev, "%s failed submit serial rx_urb %d",
- __func__, result);
+ if (write_length_remaining == 0) {
+ serial->curr_rx_urb_offset = 0;
+ serial->rx_urb_filled[hso_urb_to_index(serial, urb)] = 0;
}
+ return write_length_remaining;
}
+
/* Base driver functions */
static void hso_log_port(struct hso_device *hso_dev)
@@ -1794,9 +1931,13 @@ static int hso_stop_serial_device(struct hso_device *hso_dev)
return -ENODEV;
for (i = 0; i < serial->num_rx_urbs; i++) {
- if (serial->rx_urb[i])
+ if (serial->rx_urb[i]) {
usb_kill_urb(serial->rx_urb[i]);
+ serial->rx_urb_filled[i] = 0;
+ }
}
+ serial->curr_rx_urb_idx = 0;
+ serial->curr_rx_urb_offset = 0;
if (serial->tx_urb)
usb_kill_urb(serial->tx_urb);
@@ -2211,14 +2352,14 @@ static struct hso_device *hso_create_bulk_serial_device(
USB_DIR_IN);
if (!serial->in_endp) {
dev_err(&interface->dev, "Failed to find BULK IN ep\n");
- goto exit;
+ goto exit2;
}
if (!
(serial->out_endp =
hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, USB_DIR_OUT))) {
dev_err(&interface->dev, "Failed to find BULK IN ep\n");
- goto exit;
+ goto exit2;
}
serial->write_data = hso_std_serial_write_data;
@@ -2231,9 +2372,10 @@ static struct hso_device *hso_create_bulk_serial_device(
/* done, return it */
return hso_dev;
+
+exit2:
+ hso_serial_common_free(serial);
exit:
- if (hso_dev && serial)
- hso_serial_common_free(serial);
kfree(serial);
hso_free_device(hso_dev);
return NULL;
@@ -2740,6 +2882,7 @@ static const struct tty_operations hso_serial_ops = {
.chars_in_buffer = hso_serial_chars_in_buffer,
.tiocmget = hso_serial_tiocmget,
.tiocmset = hso_serial_tiocmset,
+ .unthrottle = hso_unthrottle
};
static struct usb_driver hso_driver = {
diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
index ca9d00c1194e..b5143509e8be 100644
--- a/drivers/net/usb/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
@@ -118,7 +118,7 @@ static void mcs7830_async_cmd_callback(struct urb *urb)
if (urb->status < 0)
printk(KERN_DEBUG "%s() failed with %d\n",
- __FUNCTION__, urb->status);
+ __func__, urb->status);
kfree(req);
usb_free_urb(urb);
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 8c19307e5040..38b90e7a7ed3 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -119,7 +119,7 @@ static void ctrl_callback(struct urb *urb)
default:
if (netif_msg_drv(pegasus) && printk_ratelimit())
dev_dbg(&pegasus->intf->dev, "%s, status %d\n",
- __FUNCTION__, urb->status);
+ __func__, urb->status);
}
pegasus->flags &= ~ETH_REGS_CHANGED;
wake_up(&pegasus->ctrl_wait);
@@ -136,7 +136,7 @@ static int get_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
if (!buffer) {
if (netif_msg_drv(pegasus))
dev_warn(&pegasus->intf->dev, "out of memory in %s\n",
- __FUNCTION__);
+ __func__);
return -ENOMEM;
}
add_wait_queue(&pegasus->ctrl_wait, &wait);
@@ -224,7 +224,7 @@ static int set_registers(pegasus_t * pegasus, __u16 indx, __u16 size,
netif_device_detach(pegasus->net);
if (netif_msg_drv(pegasus))
dev_err(&pegasus->intf->dev, "%s, status %d\n",
- __FUNCTION__, ret);
+ __func__, ret);
goto out;
}
@@ -246,7 +246,7 @@ static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data)
if (!tmp) {
if (netif_msg_drv(pegasus))
dev_warn(&pegasus->intf->dev, "out of memory in %s\n",
- __FUNCTION__);
+ __func__);
return -ENOMEM;
}
memcpy(tmp, &data, 1);
@@ -277,7 +277,7 @@ static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data)
netif_device_detach(pegasus->net);
if (netif_msg_drv(pegasus) && printk_ratelimit())
dev_err(&pegasus->intf->dev, "%s, status %d\n",
- __FUNCTION__, ret);
+ __func__, ret);
goto out;
}
@@ -310,7 +310,7 @@ static int update_eth_regs_async(pegasus_t * pegasus)
netif_device_detach(pegasus->net);
if (netif_msg_drv(pegasus))
dev_err(&pegasus->intf->dev, "%s, status %d\n",
- __FUNCTION__, ret);
+ __func__, ret);
}
return ret;
@@ -341,7 +341,7 @@ static int read_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 * regd)
}
fail:
if (netif_msg_drv(pegasus))
- dev_warn(&pegasus->intf->dev, "%s failed\n", __FUNCTION__);
+ dev_warn(&pegasus->intf->dev, "%s failed\n", __func__);
return ret;
}
@@ -378,7 +378,7 @@ static int write_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 regd)
fail:
if (netif_msg_drv(pegasus))
- dev_warn(&pegasus->intf->dev, "%s failed\n", __FUNCTION__);
+ dev_warn(&pegasus->intf->dev, "%s failed\n", __func__);
return -ETIMEDOUT;
}
@@ -415,7 +415,7 @@ static int read_eprom_word(pegasus_t * pegasus, __u8 index, __u16 * retdata)
fail:
if (netif_msg_drv(pegasus))
- dev_warn(&pegasus->intf->dev, "%s failed\n", __FUNCTION__);
+ dev_warn(&pegasus->intf->dev, "%s failed\n", __func__);
return -ETIMEDOUT;
}
@@ -463,7 +463,7 @@ static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data)
return ret;
fail:
if (netif_msg_drv(pegasus))
- dev_warn(&pegasus->intf->dev, "%s failed\n", __FUNCTION__);
+ dev_warn(&pegasus->intf->dev, "%s failed\n", __func__);
return -ETIMEDOUT;
}
#endif /* PEGASUS_WRITE_EEPROM */
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
new file mode 100644
index 000000000000..51e2f5d7d14e
--- /dev/null
+++ b/drivers/net/usb/smsc95xx.c
@@ -0,0 +1,1225 @@
+ /***************************************************************************
+ *
+ * Copyright (C) 2007-2008 SMSC
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *****************************************************************************/
+
+#include <linux/module.h>
+#include <linux/kmod.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/crc32.h>
+#include <linux/usb/usbnet.h>
+#include "smsc95xx.h"
+
+#define SMSC_CHIPNAME "smsc95xx"
+#define SMSC_DRIVER_VERSION "1.0.3"
+#define HS_USB_PKT_SIZE (512)
+#define FS_USB_PKT_SIZE (64)
+#define DEFAULT_HS_BURST_CAP_SIZE (16 * 1024 + 5 * HS_USB_PKT_SIZE)
+#define DEFAULT_FS_BURST_CAP_SIZE (6 * 1024 + 33 * FS_USB_PKT_SIZE)
+#define DEFAULT_BULK_IN_DELAY (0x00002000)
+#define MAX_SINGLE_PACKET_SIZE (2048)
+#define LAN95XX_EEPROM_MAGIC (0x9500)
+#define EEPROM_MAC_OFFSET (0x01)
+#define DEFAULT_RX_CSUM_ENABLE (true)
+#define SMSC95XX_INTERNAL_PHY_ID (1)
+#define SMSC95XX_TX_OVERHEAD (8)
+#define FLOW_CTRL_TX (1)
+#define FLOW_CTRL_RX (2)
+
+struct smsc95xx_priv {
+ u32 mac_cr;
+ spinlock_t mac_cr_lock;
+ bool use_rx_csum;
+};
+
+struct usb_context {
+ struct usb_ctrlrequest req;
+ struct completion notify;
+ struct usbnet *dev;
+};
+
+int turbo_mode = true;
+module_param(turbo_mode, bool, 0644);
+MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
+
+static int smsc95xx_read_reg(struct usbnet *dev, u32 index, u32 *data)
+{
+ u32 *buf = kmalloc(4, GFP_KERNEL);
+ int ret;
+
+ BUG_ON(!dev);
+
+ if (!buf)
+ return -ENOMEM;
+
+ ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+ USB_VENDOR_REQUEST_READ_REGISTER,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 00, index, buf, 4, USB_CTRL_GET_TIMEOUT);
+
+ if (unlikely(ret < 0))
+ devwarn(dev, "Failed to read register index 0x%08x", index);
+
+ le32_to_cpus(buf);
+ *data = *buf;
+ kfree(buf);
+
+ return ret;
+}
+
+static int smsc95xx_write_reg(struct usbnet *dev, u32 index, u32 data)
+{
+ u32 *buf = kmalloc(4, GFP_KERNEL);
+ int ret;
+
+ BUG_ON(!dev);
+
+ if (!buf)
+ return -ENOMEM;
+
+ *buf = data;
+ cpu_to_le32s(buf);
+
+ ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+ USB_VENDOR_REQUEST_WRITE_REGISTER,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 00, index, buf, 4, USB_CTRL_SET_TIMEOUT);
+
+ if (unlikely(ret < 0))
+ devwarn(dev, "Failed to write register index 0x%08x", index);
+
+ kfree(buf);
+
+ return ret;
+}
+
+/* Loop until the read is completed with timeout
+ * called with phy_mutex held */
+static int smsc95xx_phy_wait_not_busy(struct usbnet *dev)
+{
+ unsigned long start_time = jiffies;
+ u32 val;
+
+ do {
+ smsc95xx_read_reg(dev, MII_ADDR, &val);
+ if (!(val & MII_BUSY_))
+ return 0;
+ } while (!time_after(jiffies, start_time + HZ));
+
+ return -EIO;
+}
+
+static int smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u32 val, addr;
+
+ mutex_lock(&dev->phy_mutex);
+
+ /* confirm MII not busy */
+ if (smsc95xx_phy_wait_not_busy(dev)) {
+ devwarn(dev, "MII is busy in smsc95xx_mdio_read");
+ mutex_unlock(&dev->phy_mutex);
+ return -EIO;
+ }
+
+ /* set the address, index & direction (read from PHY) */
+ phy_id &= dev->mii.phy_id_mask;
+ idx &= dev->mii.reg_num_mask;
+ addr = (phy_id << 11) | (idx << 6) | MII_READ_;
+ smsc95xx_write_reg(dev, MII_ADDR, addr);
+
+ if (smsc95xx_phy_wait_not_busy(dev)) {
+ devwarn(dev, "Timed out reading MII reg %02X", idx);
+ mutex_unlock(&dev->phy_mutex);
+ return -EIO;
+ }
+
+ smsc95xx_read_reg(dev, MII_DATA, &val);
+
+ mutex_unlock(&dev->phy_mutex);
+
+ return (u16)(val & 0xFFFF);
+}
+
+static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx,
+ int regval)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ u32 val, addr;
+
+ mutex_lock(&dev->phy_mutex);
+
+ /* confirm MII not busy */
+ if (smsc95xx_phy_wait_not_busy(dev)) {
+ devwarn(dev, "MII is busy in smsc95xx_mdio_write");
+ mutex_unlock(&dev->phy_mutex);
+ return;
+ }
+
+ val = regval;
+ smsc95xx_write_reg(dev, MII_DATA, val);
+
+ /* set the address, index & direction (write to PHY) */
+ phy_id &= dev->mii.phy_id_mask;
+ idx &= dev->mii.reg_num_mask;
+ addr = (phy_id << 11) | (idx << 6) | MII_WRITE_;
+ smsc95xx_write_reg(dev, MII_ADDR, addr);
+
+ if (smsc95xx_phy_wait_not_busy(dev))
+ devwarn(dev, "Timed out writing MII reg %02X", idx);
+
+ mutex_unlock(&dev->phy_mutex);
+}
+
+static int smsc95xx_wait_eeprom(struct usbnet *dev)
+{
+ unsigned long start_time = jiffies;
+ u32 val;
+
+ do {
+ smsc95xx_read_reg(dev, E2P_CMD, &val);
+ if (!(val & E2P_CMD_BUSY_) || (val & E2P_CMD_TIMEOUT_))
+ break;
+ udelay(40);
+ } while (!time_after(jiffies, start_time + HZ));
+
+ if (val & (E2P_CMD_TIMEOUT_ | E2P_CMD_BUSY_)) {
+ devwarn(dev, "EEPROM read operation timeout");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int smsc95xx_eeprom_confirm_not_busy(struct usbnet *dev)
+{
+ unsigned long start_time = jiffies;
+ u32 val;
+
+ 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;
+
+ udelay(40);
+ } while (!time_after(jiffies, start_time + HZ));
+
+ devwarn(dev, "EEPROM is busy");
+ return -EIO;
+}
+
+static int smsc95xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length,
+ u8 *data)
+{
+ u32 val;
+ int i, ret;
+
+ BUG_ON(!dev);
+ BUG_ON(!data);
+
+ ret = smsc95xx_eeprom_confirm_not_busy(dev);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < length; i++) {
+ val = E2P_CMD_BUSY_ | E2P_CMD_READ_ | (offset & E2P_CMD_ADDR_);
+ smsc95xx_write_reg(dev, E2P_CMD, val);
+
+ ret = smsc95xx_wait_eeprom(dev);
+ if (ret < 0)
+ return ret;
+
+ smsc95xx_read_reg(dev, E2P_DATA, &val);
+
+ data[i] = val & 0xFF;
+ offset++;
+ }
+
+ return 0;
+}
+
+static int smsc95xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length,
+ u8 *data)
+{
+ u32 val;
+ int i, ret;
+
+ BUG_ON(!dev);
+ BUG_ON(!data);
+
+ ret = smsc95xx_eeprom_confirm_not_busy(dev);
+ if (ret)
+ return ret;
+
+ /* Issue write/erase enable command */
+ val = E2P_CMD_BUSY_ | E2P_CMD_EWEN_;
+ smsc95xx_write_reg(dev, E2P_CMD, val);
+
+ ret = smsc95xx_wait_eeprom(dev);
+ if (ret < 0)
+ return ret;
+
+ for (i = 0; i < length; i++) {
+
+ /* Fill data register */
+ val = data[i];
+ smsc95xx_write_reg(dev, E2P_DATA, val);
+
+ /* Send "write" command */
+ val = E2P_CMD_BUSY_ | E2P_CMD_WRITE_ | (offset & E2P_CMD_ADDR_);
+ smsc95xx_write_reg(dev, E2P_CMD, val);
+
+ ret = smsc95xx_wait_eeprom(dev);
+ if (ret < 0)
+ return ret;
+
+ offset++;
+ }
+
+ return 0;
+}
+
+static void smsc95xx_async_cmd_callback(struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_context *usb_context = urb->context;
+ struct usbnet *dev = usb_context->dev;
+
+ if (urb->status < 0)
+ devwarn(dev, "async callback failed with %d", urb->status);
+
+ complete(&usb_context->notify);
+
+ kfree(usb_context);
+ usb_free_urb(urb);
+}
+
+static int smsc95xx_write_reg_async(struct usbnet *dev, u16 index, u32 *data)
+{
+ struct usb_context *usb_context;
+ int status;
+ struct urb *urb;
+ const u16 size = 4;
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb) {
+ devwarn(dev, "Error allocating URB");
+ return -ENOMEM;
+ }
+
+ usb_context = kmalloc(sizeof(struct usb_context), GFP_ATOMIC);
+ if (usb_context == NULL) {
+ devwarn(dev, "Error allocating control msg");
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ usb_context->req.bRequestType =
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
+ usb_context->req.bRequest = USB_VENDOR_REQUEST_WRITE_REGISTER;
+ usb_context->req.wValue = 00;
+ usb_context->req.wIndex = cpu_to_le16(index);
+ usb_context->req.wLength = cpu_to_le16(size);
+ init_completion(&usb_context->notify);
+
+ usb_fill_control_urb(urb, dev->udev, usb_sndctrlpipe(dev->udev, 0),
+ (void *)&usb_context->req, data, size,
+ (usb_complete_t)smsc95xx_async_cmd_callback,
+ (void *)usb_context);
+
+ status = usb_submit_urb(urb, GFP_ATOMIC);
+ if (status < 0) {
+ devwarn(dev, "Error submitting control msg, sts=%d", status);
+ kfree(usb_context);
+ usb_free_urb(urb);
+ }
+
+ return status;
+}
+
+/* returns hash bit number for given MAC address
+ * example:
+ * 01 00 5E 00 00 01 -> returns bit number 31 */
+static unsigned int smsc95xx_hash(char addr[ETH_ALEN])
+{
+ return (ether_crc(ETH_ALEN, addr) >> 26) & 0x3f;
+}
+
+static void smsc95xx_set_multicast(struct net_device *netdev)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ u32 hash_hi = 0;
+ u32 hash_lo = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdata->mac_cr_lock, flags);
+
+ if (dev->net->flags & IFF_PROMISC) {
+ if (netif_msg_drv(dev))
+ devdbg(dev, "promiscuous mode enabled");
+ pdata->mac_cr |= MAC_CR_PRMS_;
+ pdata->mac_cr &= ~(MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
+ } else if (dev->net->flags & IFF_ALLMULTI) {
+ if (netif_msg_drv(dev))
+ devdbg(dev, "receive all multicast enabled");
+ pdata->mac_cr |= MAC_CR_MCPAS_;
+ pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_HPFILT_);
+ } else if (dev->net->mc_count > 0) {
+ struct dev_mc_list *mc_list = dev->net->mc_list;
+ int count = 0;
+
+ pdata->mac_cr |= MAC_CR_HPFILT_;
+ pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
+
+ while (mc_list) {
+ count++;
+ if (mc_list->dmi_addrlen == ETH_ALEN) {
+ u32 bitnum = smsc95xx_hash(mc_list->dmi_addr);
+ u32 mask = 0x01 << (bitnum & 0x1F);
+ if (bitnum & 0x20)
+ hash_hi |= mask;
+ else
+ hash_lo |= mask;
+ } else {
+ devwarn(dev, "dmi_addrlen != 6");
+ }
+ mc_list = mc_list->next;
+ }
+
+ if (count != ((u32)dev->net->mc_count))
+ devwarn(dev, "mc_count != dev->mc_count");
+
+ if (netif_msg_drv(dev))
+ devdbg(dev, "HASHH=0x%08X, HASHL=0x%08X", hash_hi,
+ hash_lo);
+ } else {
+ if (netif_msg_drv(dev))
+ devdbg(dev, "receive own packets only");
+ pdata->mac_cr &=
+ ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
+ }
+
+ spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
+
+ /* Initiate async writes, as we can't wait for completion here */
+ smsc95xx_write_reg_async(dev, HASHH, &hash_hi);
+ smsc95xx_write_reg_async(dev, HASHL, &hash_lo);
+ smsc95xx_write_reg_async(dev, MAC_CR, &pdata->mac_cr);
+}
+
+static u8 smsc95xx_resolve_flowctrl_fulldplx(u16 lcladv, u16 rmtadv)
+{
+ u8 cap = 0;
+
+ if (lcladv & ADVERTISE_PAUSE_CAP) {
+ if (lcladv & ADVERTISE_PAUSE_ASYM) {
+ if (rmtadv & LPA_PAUSE_CAP)
+ cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
+ else if (rmtadv & LPA_PAUSE_ASYM)
+ cap = FLOW_CTRL_RX;
+ } else {
+ if (rmtadv & LPA_PAUSE_CAP)
+ cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
+ }
+ } else if (lcladv & ADVERTISE_PAUSE_ASYM) {
+ if ((rmtadv & LPA_PAUSE_CAP) && (rmtadv & LPA_PAUSE_ASYM))
+ cap = FLOW_CTRL_TX;
+ }
+
+ return cap;
+}
+
+static void smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
+ u16 lcladv, u16 rmtadv)
+{
+ u32 flow, afc_cfg = 0;
+
+ int ret = smsc95xx_read_reg(dev, AFC_CFG, &afc_cfg);
+ if (ret < 0) {
+ devwarn(dev, "error reading AFC_CFG");
+ return;
+ }
+
+ if (duplex == DUPLEX_FULL) {
+ u8 cap = smsc95xx_resolve_flowctrl_fulldplx(lcladv, rmtadv);
+
+ if (cap & FLOW_CTRL_RX)
+ flow = 0xFFFF0002;
+ else
+ flow = 0;
+
+ if (cap & FLOW_CTRL_TX)
+ afc_cfg |= 0xF;
+ else
+ afc_cfg &= ~0xF;
+
+ if (netif_msg_link(dev))
+ devdbg(dev, "rx pause %s, tx pause %s",
+ (cap & FLOW_CTRL_RX ? "enabled" : "disabled"),
+ (cap & FLOW_CTRL_TX ? "enabled" : "disabled"));
+ } else {
+ if (netif_msg_link(dev))
+ devdbg(dev, "half duplex");
+ flow = 0;
+ afc_cfg |= 0xF;
+ }
+
+ smsc95xx_write_reg(dev, FLOW, flow);
+ smsc95xx_write_reg(dev, AFC_CFG, afc_cfg);
+}
+
+static int smsc95xx_link_reset(struct usbnet *dev)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ struct mii_if_info *mii = &dev->mii;
+ struct ethtool_cmd ecmd;
+ unsigned long flags;
+ u16 lcladv, rmtadv;
+ u32 intdata;
+
+ /* clear interrupt status */
+ smsc95xx_mdio_read(dev->net, mii->phy_id, PHY_INT_SRC);
+ intdata = 0xFFFFFFFF;
+ smsc95xx_write_reg(dev, INT_STS, intdata);
+
+ mii_check_media(mii, 1, 1);
+ mii_ethtool_gset(&dev->mii, &ecmd);
+ lcladv = smsc95xx_mdio_read(dev->net, mii->phy_id, MII_ADVERTISE);
+ rmtadv = smsc95xx_mdio_read(dev->net, mii->phy_id, MII_LPA);
+
+ if (netif_msg_link(dev))
+ devdbg(dev, "speed: %d duplex: %d lcladv: %04x rmtadv: %04x",
+ ecmd.speed, ecmd.duplex, lcladv, rmtadv);
+
+ spin_lock_irqsave(&pdata->mac_cr_lock, flags);
+ if (ecmd.duplex != DUPLEX_FULL) {
+ pdata->mac_cr &= ~MAC_CR_FDPX_;
+ pdata->mac_cr |= MAC_CR_RCVOWN_;
+ } else {
+ pdata->mac_cr &= ~MAC_CR_RCVOWN_;
+ pdata->mac_cr |= MAC_CR_FDPX_;
+ }
+ spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
+
+ smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+
+ smsc95xx_phy_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv);
+
+ return 0;
+}
+
+static void smsc95xx_status(struct usbnet *dev, struct urb *urb)
+{
+ u32 intdata;
+
+ if (urb->actual_length != 4) {
+ devwarn(dev, "unexpected urb length %d", urb->actual_length);
+ return;
+ }
+
+ memcpy(&intdata, urb->transfer_buffer, 4);
+ le32_to_cpus(&intdata);
+
+ if (netif_msg_link(dev))
+ devdbg(dev, "intdata: 0x%08X", intdata);
+
+ if (intdata & INT_ENP_PHY_INT_)
+ usbnet_defer_kevent(dev, EVENT_LINK_RESET);
+ else
+ devwarn(dev, "unexpected interrupt, intdata=0x%08X", intdata);
+}
+
+/* Enable or disable Rx checksum offload engine */
+static int smsc95xx_set_rx_csum(struct usbnet *dev, bool enable)
+{
+ u32 read_buf;
+ int ret = smsc95xx_read_reg(dev, COE_CR, &read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to read COE_CR: %d", ret);
+ return ret;
+ }
+
+ if (enable)
+ read_buf |= Rx_COE_EN_;
+ else
+ read_buf &= ~Rx_COE_EN_;
+
+ ret = smsc95xx_write_reg(dev, COE_CR, read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write COE_CR: %d", ret);
+ return ret;
+ }
+
+ if (netif_msg_hw(dev))
+ devdbg(dev, "COE_CR = 0x%08x", read_buf);
+ return 0;
+}
+
+static int smsc95xx_ethtool_get_eeprom_len(struct net_device *net)
+{
+ return MAX_EEPROM_SIZE;
+}
+
+static int smsc95xx_ethtool_get_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *ee, u8 *data)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+
+ ee->magic = LAN95XX_EEPROM_MAGIC;
+
+ return smsc95xx_read_eeprom(dev, ee->offset, ee->len, data);
+}
+
+static int smsc95xx_ethtool_set_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *ee, u8 *data)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+
+ if (ee->magic != LAN95XX_EEPROM_MAGIC) {
+ devwarn(dev, "EEPROM: magic value mismatch, magic = 0x%x",
+ ee->magic);
+ return -EINVAL;
+ }
+
+ return smsc95xx_write_eeprom(dev, ee->offset, ee->len, data);
+}
+
+static u32 smsc95xx_ethtool_get_rx_csum(struct net_device *netdev)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+
+ return pdata->use_rx_csum;
+}
+
+static int smsc95xx_ethtool_set_rx_csum(struct net_device *netdev, u32 val)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+
+ pdata->use_rx_csum = !!val;
+
+ return smsc95xx_set_rx_csum(dev, pdata->use_rx_csum);
+}
+
+static struct ethtool_ops smsc95xx_ethtool_ops = {
+ .get_link = usbnet_get_link,
+ .nway_reset = usbnet_nway_reset,
+ .get_drvinfo = usbnet_get_drvinfo,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+ .get_settings = usbnet_get_settings,
+ .set_settings = usbnet_set_settings,
+ .get_eeprom_len = smsc95xx_ethtool_get_eeprom_len,
+ .get_eeprom = smsc95xx_ethtool_get_eeprom,
+ .set_eeprom = smsc95xx_ethtool_set_eeprom,
+ .get_rx_csum = smsc95xx_ethtool_get_rx_csum,
+ .set_rx_csum = smsc95xx_ethtool_set_rx_csum,
+};
+
+static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
+{
+ struct usbnet *dev = netdev_priv(netdev);
+
+ if (!netif_running(netdev))
+ return -EINVAL;
+
+ return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
+}
+
+static void smsc95xx_init_mac_address(struct usbnet *dev)
+{
+ /* try reading mac address from EEPROM */
+ if (smsc95xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
+ dev->net->dev_addr) == 0) {
+ if (is_valid_ether_addr(dev->net->dev_addr)) {
+ /* eeprom values are valid so use them */
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "MAC address read from EEPROM");
+ return;
+ }
+ }
+
+ /* no eeprom, or eeprom values are invalid. generate random MAC */
+ random_ether_addr(dev->net->dev_addr);
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "MAC address set to random_ether_addr");
+}
+
+static int smsc95xx_set_mac_address(struct usbnet *dev)
+{
+ u32 addr_lo = dev->net->dev_addr[0] | dev->net->dev_addr[1] << 8 |
+ dev->net->dev_addr[2] << 16 | dev->net->dev_addr[3] << 24;
+ u32 addr_hi = dev->net->dev_addr[4] | dev->net->dev_addr[5] << 8;
+ int ret;
+
+ ret = smsc95xx_write_reg(dev, ADDRL, addr_lo);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write ADDRL: %d", ret);
+ return ret;
+ }
+
+ ret = smsc95xx_write_reg(dev, ADDRH, addr_hi);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write ADDRH: %d", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+/* starts the TX path */
+static void smsc95xx_start_tx_path(struct usbnet *dev)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ unsigned long flags;
+ u32 reg_val;
+
+ /* Enable Tx at MAC */
+ spin_lock_irqsave(&pdata->mac_cr_lock, flags);
+ pdata->mac_cr |= MAC_CR_TXEN_;
+ spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
+
+ smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+
+ /* Enable Tx at SCSRs */
+ reg_val = TX_CFG_ON_;
+ smsc95xx_write_reg(dev, TX_CFG, reg_val);
+}
+
+/* Starts the Receive path */
+static void smsc95xx_start_rx_path(struct usbnet *dev)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdata->mac_cr_lock, flags);
+ pdata->mac_cr |= MAC_CR_RXEN_;
+ spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
+
+ smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
+}
+
+static int smsc95xx_phy_initialize(struct usbnet *dev)
+{
+ /* Initialize MII structure */
+ dev->mii.dev = dev->net;
+ dev->mii.mdio_read = smsc95xx_mdio_read;
+ dev->mii.mdio_write = smsc95xx_mdio_write;
+ dev->mii.phy_id_mask = 0x1f;
+ dev->mii.reg_num_mask = 0x1f;
+ dev->mii.phy_id = SMSC95XX_INTERNAL_PHY_ID;
+
+ smsc95xx_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
+ smsc95xx_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
+ ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP |
+ ADVERTISE_PAUSE_ASYM);
+
+ /* read to clear */
+ smsc95xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC);
+
+ smsc95xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_MASK,
+ PHY_INT_MASK_DEFAULT_);
+ mii_nway_restart(&dev->mii);
+
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "phy initialised succesfully");
+ return 0;
+}
+
+static int smsc95xx_reset(struct usbnet *dev)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ u32 read_buf, write_buf, burst_cap;
+ int ret = 0, timeout;
+ DECLARE_MAC_BUF(mac);
+
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "entering smsc95xx_reset");
+
+ write_buf = HW_CFG_LRST_;
+ ret = smsc95xx_write_reg(dev, HW_CFG, write_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write HW_CFG_LRST_ bit in HW_CFG "
+ "register, ret = %d", ret);
+ return ret;
+ }
+
+ timeout = 0;
+ do {
+ ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to read HW_CFG: %d", ret);
+ return ret;
+ }
+ msleep(10);
+ timeout++;
+ } while ((read_buf & HW_CFG_LRST_) && (timeout < 100));
+
+ if (timeout >= 100) {
+ devwarn(dev, "timeout waiting for completion of Lite Reset");
+ return ret;
+ }
+
+ write_buf = PM_CTL_PHY_RST_;
+ ret = smsc95xx_write_reg(dev, PM_CTRL, write_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write PM_CTRL: %d", ret);
+ return ret;
+ }
+
+ timeout = 0;
+ do {
+ ret = smsc95xx_read_reg(dev, PM_CTRL, &read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to read PM_CTRL: %d", ret);
+ return ret;
+ }
+ msleep(10);
+ timeout++;
+ } while ((read_buf & PM_CTL_PHY_RST_) && (timeout < 100));
+
+ if (timeout >= 100) {
+ devwarn(dev, "timeout waiting for PHY Reset");
+ return ret;
+ }
+
+ smsc95xx_init_mac_address(dev);
+
+ ret = smsc95xx_set_mac_address(dev);
+ if (ret < 0)
+ return ret;
+
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "MAC Address: %s",
+ print_mac(mac, dev->net->dev_addr));
+
+ ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to read HW_CFG: %d", ret);
+ return ret;
+ }
+
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "Read Value from HW_CFG : 0x%08x", read_buf);
+
+ read_buf |= HW_CFG_BIR_;
+
+ ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write HW_CFG_BIR_ bit in HW_CFG "
+ "register, ret = %d", ret);
+ return ret;
+ }
+
+ ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to read HW_CFG: %d", ret);
+ return ret;
+ }
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "Read Value from HW_CFG after writing "
+ "HW_CFG_BIR_: 0x%08x", read_buf);
+
+ if (!turbo_mode) {
+ burst_cap = 0;
+ dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
+ } else if (dev->udev->speed == USB_SPEED_HIGH) {
+ burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
+ dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
+ } else {
+ burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
+ dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
+ }
+
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "rx_urb_size=%ld", (ulong)dev->rx_urb_size);
+
+ ret = smsc95xx_write_reg(dev, BURST_CAP, burst_cap);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write BURST_CAP: %d", ret);
+ return ret;
+ }
+
+ ret = smsc95xx_read_reg(dev, BURST_CAP, &read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to read BURST_CAP: %d", ret);
+ return ret;
+ }
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "Read Value from BURST_CAP after writing: 0x%08x",
+ read_buf);
+
+ read_buf = DEFAULT_BULK_IN_DELAY;
+ ret = smsc95xx_write_reg(dev, BULK_IN_DLY, read_buf);
+ if (ret < 0) {
+ devwarn(dev, "ret = %d", ret);
+ return ret;
+ }
+
+ ret = smsc95xx_read_reg(dev, BULK_IN_DLY, &read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to read BULK_IN_DLY: %d", ret);
+ return ret;
+ }
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "Read Value from BULK_IN_DLY after writing: "
+ "0x%08x", read_buf);
+
+ ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to read HW_CFG: %d", ret);
+ return ret;
+ }
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "Read Value from HW_CFG: 0x%08x", read_buf);
+
+ if (turbo_mode)
+ read_buf |= (HW_CFG_MEF_ | HW_CFG_BCE_);
+
+ read_buf &= ~HW_CFG_RXDOFF_;
+
+ /* set Rx data offset=2, Make IP header aligns on word boundary. */
+ read_buf |= NET_IP_ALIGN << 9;
+
+ ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write HW_CFG register, ret=%d", ret);
+ return ret;
+ }
+
+ ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to read HW_CFG: %d", ret);
+ return ret;
+ }
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "Read Value from HW_CFG after writing: 0x%08x",
+ read_buf);
+
+ write_buf = 0xFFFFFFFF;
+ ret = smsc95xx_write_reg(dev, INT_STS, write_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write INT_STS register, ret=%d", ret);
+ return ret;
+ }
+
+ ret = smsc95xx_read_reg(dev, ID_REV, &read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to read ID_REV: %d", ret);
+ return ret;
+ }
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "ID_REV = 0x%08x", read_buf);
+
+ /* Init Tx */
+ write_buf = 0;
+ ret = smsc95xx_write_reg(dev, FLOW, write_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write FLOW: %d", ret);
+ return ret;
+ }
+
+ read_buf = AFC_CFG_DEFAULT;
+ ret = smsc95xx_write_reg(dev, AFC_CFG, read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write AFC_CFG: %d", ret);
+ return ret;
+ }
+
+ /* Don't need mac_cr_lock during initialisation */
+ ret = smsc95xx_read_reg(dev, MAC_CR, &pdata->mac_cr);
+ if (ret < 0) {
+ devwarn(dev, "Failed to read MAC_CR: %d", ret);
+ return ret;
+ }
+
+ /* Init Rx */
+ /* Set Vlan */
+ write_buf = (u32)ETH_P_8021Q;
+ ret = smsc95xx_write_reg(dev, VLAN1, write_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write VAN1: %d", ret);
+ return ret;
+ }
+
+ /* Enable or disable Rx checksum offload engine */
+ ret = smsc95xx_set_rx_csum(dev, pdata->use_rx_csum);
+ if (ret < 0) {
+ devwarn(dev, "Failed to set Rx csum offload: %d", ret);
+ return ret;
+ }
+
+ smsc95xx_set_multicast(dev->net);
+
+ if (smsc95xx_phy_initialize(dev) < 0)
+ return -EIO;
+
+ ret = smsc95xx_read_reg(dev, INT_EP_CTL, &read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to read INT_EP_CTL: %d", ret);
+ return ret;
+ }
+
+ /* enable PHY interrupts */
+ read_buf |= INT_EP_CTL_PHY_INT_;
+
+ ret = smsc95xx_write_reg(dev, INT_EP_CTL, read_buf);
+ if (ret < 0) {
+ devwarn(dev, "Failed to write INT_EP_CTL: %d", ret);
+ return ret;
+ }
+
+ smsc95xx_start_tx_path(dev);
+ smsc95xx_start_rx_path(dev);
+
+ if (netif_msg_ifup(dev))
+ devdbg(dev, "smsc95xx_reset, return 0");
+ return 0;
+}
+
+static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct smsc95xx_priv *pdata = NULL;
+ int ret;
+
+ printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n");
+
+ ret = usbnet_get_endpoints(dev, intf);
+ if (ret < 0) {
+ devwarn(dev, "usbnet_get_endpoints failed: %d", ret);
+ return ret;
+ }
+
+ dev->data[0] = (unsigned long)kzalloc(sizeof(struct smsc95xx_priv),
+ GFP_KERNEL);
+
+ pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ if (!pdata) {
+ devwarn(dev, "Unable to allocate struct smsc95xx_priv");
+ return -ENOMEM;
+ }
+
+ spin_lock_init(&pdata->mac_cr_lock);
+
+ pdata->use_rx_csum = DEFAULT_RX_CSUM_ENABLE;
+
+ /* Init all registers */
+ ret = smsc95xx_reset(dev);
+
+ dev->net->do_ioctl = smsc95xx_ioctl;
+ dev->net->ethtool_ops = &smsc95xx_ethtool_ops;
+ dev->net->set_multicast_list = smsc95xx_set_multicast;
+ dev->net->flags |= IFF_MULTICAST;
+ dev->net->hard_header_len += SMSC95XX_TX_OVERHEAD;
+ return 0;
+}
+
+static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+ if (pdata) {
+ if (netif_msg_ifdown(dev))
+ devdbg(dev, "free pdata");
+ kfree(pdata);
+ pdata = NULL;
+ dev->data[0] = 0;
+ }
+}
+
+static void smsc95xx_rx_csum_offload(struct sk_buff *skb)
+{
+ skb->csum = *(u16 *)(skb_tail_pointer(skb) - 2);
+ skb->ip_summed = CHECKSUM_COMPLETE;
+ skb_trim(skb, skb->len - 2);
+}
+
+static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
+{
+ struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
+
+ while (skb->len > 0) {
+ u32 header, align_count;
+ struct sk_buff *ax_skb;
+ unsigned char *packet;
+ u16 size;
+
+ memcpy(&header, skb->data, sizeof(header));
+ le32_to_cpus(&header);
+ skb_pull(skb, 4 + NET_IP_ALIGN);
+ packet = skb->data;
+
+ /* get the packet length */
+ size = (u16)((header & RX_STS_FL_) >> 16);
+ align_count = (4 - ((size + NET_IP_ALIGN) % 4)) % 4;
+
+ if (unlikely(header & RX_STS_ES_)) {
+ if (netif_msg_rx_err(dev))
+ devdbg(dev, "Error header=0x%08x", header);
+ dev->stats.rx_errors++;
+ dev->stats.rx_dropped++;
+
+ if (header & RX_STS_CRC_) {
+ dev->stats.rx_crc_errors++;
+ } else {
+ if (header & (RX_STS_TL_ | RX_STS_RF_))
+ dev->stats.rx_frame_errors++;
+
+ if ((header & RX_STS_LE_) &&
+ (!(header & RX_STS_FT_)))
+ dev->stats.rx_length_errors++;
+ }
+ } else {
+ /* ETH_FRAME_LEN + 4(CRC) + 2(COE) + 4(Vlan) */
+ if (unlikely(size > (ETH_FRAME_LEN + 12))) {
+ if (netif_msg_rx_err(dev))
+ devdbg(dev, "size err header=0x%08x",
+ header);
+ return 0;
+ }
+
+ /* last frame in this batch */
+ if (skb->len == size) {
+ if (pdata->use_rx_csum)
+ smsc95xx_rx_csum_offload(skb);
+
+ skb->truesize = size + sizeof(struct sk_buff);
+
+ return 1;
+ }
+
+ ax_skb = skb_clone(skb, GFP_ATOMIC);
+ if (unlikely(!ax_skb)) {
+ devwarn(dev, "Error allocating skb");
+ return 0;
+ }
+
+ ax_skb->len = size;
+ ax_skb->data = packet;
+ skb_set_tail_pointer(ax_skb, size);
+
+ if (pdata->use_rx_csum)
+ smsc95xx_rx_csum_offload(ax_skb);
+
+ ax_skb->truesize = size + sizeof(struct sk_buff);
+
+ usbnet_skb_return(dev, ax_skb);
+ }
+
+ skb_pull(skb, size);
+
+ /* padding bytes before the next frame starts */
+ if (skb->len)
+ skb_pull(skb, align_count);
+ }
+
+ if (unlikely(skb->len < 0)) {
+ devwarn(dev, "invalid rx length<0 %d", skb->len);
+ return 0;
+ }
+
+ return 1;
+}
+
+static struct sk_buff *smsc95xx_tx_fixup(struct usbnet *dev,
+ struct sk_buff *skb, gfp_t flags)
+{
+ u32 tx_cmd_a, tx_cmd_b;
+
+ if (skb_headroom(skb) < SMSC95XX_TX_OVERHEAD) {
+ struct sk_buff *skb2 = skb_copy_expand(skb,
+ SMSC95XX_TX_OVERHEAD, 0, flags);
+ dev_kfree_skb_any(skb);
+ skb = skb2;
+ if (!skb)
+ return NULL;
+ }
+
+ skb_push(skb, 4);
+ tx_cmd_b = (u32)(skb->len - 4);
+ cpu_to_le32s(&tx_cmd_b);
+ memcpy(skb->data, &tx_cmd_b, 4);
+
+ skb_push(skb, 4);
+ tx_cmd_a = (u32)(skb->len - 8) | TX_CMD_A_FIRST_SEG_ |
+ TX_CMD_A_LAST_SEG_;
+ cpu_to_le32s(&tx_cmd_a);
+ memcpy(skb->data, &tx_cmd_a, 4);
+
+ return skb;
+}
+
+static const struct driver_info smsc95xx_info = {
+ .description = "smsc95xx USB 2.0 Ethernet",
+ .bind = smsc95xx_bind,
+ .unbind = smsc95xx_unbind,
+ .link_reset = smsc95xx_link_reset,
+ .reset = smsc95xx_reset,
+ .rx_fixup = smsc95xx_rx_fixup,
+ .tx_fixup = smsc95xx_tx_fixup,
+ .status = smsc95xx_status,
+ .flags = FLAG_ETHER,
+};
+
+static const struct usb_device_id products[] = {
+ {
+ /* SMSC9500 USB Ethernet Device */
+ USB_DEVICE(0x0424, 0x9500),
+ .driver_info = (unsigned long) &smsc95xx_info,
+ },
+ { }, /* END */
+};
+MODULE_DEVICE_TABLE(usb, products);
+
+static struct usb_driver smsc95xx_driver = {
+ .name = "smsc95xx",
+ .id_table = products,
+ .probe = usbnet_probe,
+ .suspend = usbnet_suspend,
+ .resume = usbnet_resume,
+ .disconnect = usbnet_disconnect,
+};
+
+static int __init smsc95xx_init(void)
+{
+ return usb_register(&smsc95xx_driver);
+}
+module_init(smsc95xx_init);
+
+static void __exit smsc95xx_exit(void)
+{
+ usb_deregister(&smsc95xx_driver);
+}
+module_exit(smsc95xx_exit);
+
+MODULE_AUTHOR("Nancy Lin");
+MODULE_AUTHOR("Steve Glendinning <steve.glendinning@smsc.com>");
+MODULE_DESCRIPTION("SMSC95XX USB 2.0 Ethernet Devices");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/usb/smsc95xx.h b/drivers/net/usb/smsc95xx.h
new file mode 100644
index 000000000000..66b5c84f302e
--- /dev/null
+++ b/drivers/net/usb/smsc95xx.h
@@ -0,0 +1,253 @@
+ /***************************************************************************
+ *
+ * Copyright (C) 2007-2008 SMSC
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *****************************************************************************/
+
+#ifndef _SMSC95XX_H
+#define _SMSC95XX_H
+
+/* Tx command words */
+#define TX_CMD_A_DATA_OFFSET_ (0x001F0000)
+#define TX_CMD_A_FIRST_SEG_ (0x00002000)
+#define TX_CMD_A_LAST_SEG_ (0x00001000)
+#define TX_CMD_A_BUF_SIZE_ (0x000007FF)
+
+#define TX_CMD_B_CSUM_ENABLE (0x00004000)
+#define TX_CMD_B_ADD_CRC_DISABLE_ (0x00002000)
+#define TX_CMD_B_DISABLE_PADDING_ (0x00001000)
+#define TX_CMD_B_PKT_BYTE_LENGTH_ (0x000007FF)
+
+/* Rx status word */
+#define RX_STS_FF_ (0x40000000) /* Filter Fail */
+#define RX_STS_FL_ (0x3FFF0000) /* Frame Length */
+#define RX_STS_ES_ (0x00008000) /* Error Summary */
+#define RX_STS_BF_ (0x00002000) /* Broadcast Frame */
+#define RX_STS_LE_ (0x00001000) /* Length Error */
+#define RX_STS_RF_ (0x00000800) /* Runt Frame */
+#define RX_STS_MF_ (0x00000400) /* Multicast Frame */
+#define RX_STS_TL_ (0x00000080) /* Frame too long */
+#define RX_STS_CS_ (0x00000040) /* Collision Seen */
+#define RX_STS_FT_ (0x00000020) /* Frame Type */
+#define RX_STS_RW_ (0x00000010) /* Receive Watchdog */
+#define RX_STS_ME_ (0x00000008) /* Mii Error */
+#define RX_STS_DB_ (0x00000004) /* Dribbling */
+#define RX_STS_CRC_ (0x00000002) /* CRC Error */
+
+/* SCSRs */
+#define ID_REV (0x00)
+#define ID_REV_CHIP_ID_MASK_ (0xFFFF0000)
+#define ID_REV_CHIP_REV_MASK_ (0x0000FFFF)
+#define ID_REV_CHIP_ID_9500_ (0x9500)
+
+#define INT_STS (0x08)
+#define INT_STS_TX_STOP_ (0x00020000)
+#define INT_STS_RX_STOP_ (0x00010000)
+#define INT_STS_PHY_INT_ (0x00008000)
+#define INT_STS_TXE_ (0x00004000)
+#define INT_STS_TDFU_ (0x00002000)
+#define INT_STS_TDFO_ (0x00001000)
+#define INT_STS_RXDF_ (0x00000800)
+#define INT_STS_GPIOS_ (0x000007FF)
+
+#define RX_CFG (0x0C)
+#define RX_FIFO_FLUSH_ (0x00000001)
+
+#define TX_CFG (0x10)
+#define TX_CFG_ON_ (0x00000004)
+#define TX_CFG_STOP_ (0x00000002)
+#define TX_CFG_FIFO_FLUSH_ (0x00000001)
+
+#define HW_CFG (0x14)
+#define HW_CFG_BIR_ (0x00001000)
+#define HW_CFG_LEDB_ (0x00000800)
+#define HW_CFG_RXDOFF_ (0x00000600)
+#define HW_CFG_DRP_ (0x00000040)
+#define HW_CFG_MEF_ (0x00000020)
+#define HW_CFG_LRST_ (0x00000008)
+#define HW_CFG_PSEL_ (0x00000004)
+#define HW_CFG_BCE_ (0x00000002)
+#define HW_CFG_SRST_ (0x00000001)
+
+#define PM_CTRL (0x20)
+#define PM_CTL_DEV_RDY_ (0x00000080)
+#define PM_CTL_SUS_MODE_ (0x00000060)
+#define PM_CTL_SUS_MODE_0 (0x00000000)
+#define PM_CTL_SUS_MODE_1 (0x00000020)
+#define PM_CTL_SUS_MODE_2 (0x00000060)
+#define PM_CTL_PHY_RST_ (0x00000010)
+#define PM_CTL_WOL_EN_ (0x00000008)
+#define PM_CTL_ED_EN_ (0x00000004)
+#define PM_CTL_WUPS_ (0x00000003)
+#define PM_CTL_WUPS_NO_ (0x00000000)
+#define PM_CTL_WUPS_ED_ (0x00000001)
+#define PM_CTL_WUPS_WOL_ (0x00000002)
+#define PM_CTL_WUPS_MULTI_ (0x00000003)
+
+#define LED_GPIO_CFG (0x24)
+
+#define GPIO_CFG (0x28)
+
+#define AFC_CFG (0x2C)
+
+/* Hi watermark = 15.5Kb (~10 mtu pkts) */
+/* low watermark = 3k (~2 mtu pkts) */
+/* backpressure duration = ~ 350us */
+/* Apply FC on any frame. */
+#define AFC_CFG_DEFAULT (0x00F830A1)
+
+#define E2P_CMD (0x30)
+#define E2P_CMD_BUSY_ (0x80000000)
+#define E2P_CMD_MASK_ (0x70000000)
+#define E2P_CMD_READ_ (0x00000000)
+#define E2P_CMD_EWDS_ (0x10000000)
+#define E2P_CMD_EWEN_ (0x20000000)
+#define E2P_CMD_WRITE_ (0x30000000)
+#define E2P_CMD_WRAL_ (0x40000000)
+#define E2P_CMD_ERASE_ (0x50000000)
+#define E2P_CMD_ERAL_ (0x60000000)
+#define E2P_CMD_RELOAD_ (0x70000000)
+#define E2P_CMD_TIMEOUT_ (0x00000400)
+#define E2P_CMD_LOADED_ (0x00000200)
+#define E2P_CMD_ADDR_ (0x000001FF)
+
+#define MAX_EEPROM_SIZE (512)
+
+#define E2P_DATA (0x34)
+#define E2P_DATA_MASK_ (0x000000FF)
+
+#define BURST_CAP (0x38)
+
+#define GPIO_WAKE (0x64)
+
+#define INT_EP_CTL (0x68)
+#define INT_EP_CTL_INTEP_ (0x80000000)
+#define INT_EP_CTL_MACRTO_ (0x00080000)
+#define INT_EP_CTL_TX_STOP_ (0x00020000)
+#define INT_EP_CTL_RX_STOP_ (0x00010000)
+#define INT_EP_CTL_PHY_INT_ (0x00008000)
+#define INT_EP_CTL_TXE_ (0x00004000)
+#define INT_EP_CTL_TDFU_ (0x00002000)
+#define INT_EP_CTL_TDFO_ (0x00001000)
+#define INT_EP_CTL_RXDF_ (0x00000800)
+#define INT_EP_CTL_GPIOS_ (0x000007FF)
+
+#define BULK_IN_DLY (0x6C)
+
+/* MAC CSRs */
+#define MAC_CR (0x100)
+#define MAC_CR_RXALL_ (0x80000000)
+#define MAC_CR_RCVOWN_ (0x00800000)
+#define MAC_CR_LOOPBK_ (0x00200000)
+#define MAC_CR_FDPX_ (0x00100000)
+#define MAC_CR_MCPAS_ (0x00080000)
+#define MAC_CR_PRMS_ (0x00040000)
+#define MAC_CR_INVFILT_ (0x00020000)
+#define MAC_CR_PASSBAD_ (0x00010000)
+#define MAC_CR_HFILT_ (0x00008000)
+#define MAC_CR_HPFILT_ (0x00002000)
+#define MAC_CR_LCOLL_ (0x00001000)
+#define MAC_CR_BCAST_ (0x00000800)
+#define MAC_CR_DISRTY_ (0x00000400)
+#define MAC_CR_PADSTR_ (0x00000100)
+#define MAC_CR_BOLMT_MASK (0x000000C0)
+#define MAC_CR_DFCHK_ (0x00000020)
+#define MAC_CR_TXEN_ (0x00000008)
+#define MAC_CR_RXEN_ (0x00000004)
+
+#define ADDRH (0x104)
+
+#define ADDRL (0x108)
+
+#define HASHH (0x10C)
+
+#define HASHL (0x110)
+
+#define MII_ADDR (0x114)
+#define MII_WRITE_ (0x02)
+#define MII_BUSY_ (0x01)
+#define MII_READ_ (0x00) /* ~of MII Write bit */
+
+#define MII_DATA (0x118)
+
+#define FLOW (0x11C)
+#define FLOW_FCPT_ (0xFFFF0000)
+#define FLOW_FCPASS_ (0x00000004)
+#define FLOW_FCEN_ (0x00000002)
+#define FLOW_FCBSY_ (0x00000001)
+
+#define VLAN1 (0x120)
+
+#define VLAN2 (0x124)
+
+#define WUFF (0x128)
+
+#define WUCSR (0x12C)
+
+#define COE_CR (0x130)
+#define Tx_COE_EN_ (0x00010000)
+#define Rx_COE_MODE_ (0x00000002)
+#define Rx_COE_EN_ (0x00000001)
+
+/* Vendor-specific PHY Definitions */
+
+/* Mode Control/Status Register */
+#define PHY_MODE_CTRL_STS (17)
+#define MODE_CTRL_STS_EDPWRDOWN_ ((u16)0x2000)
+#define MODE_CTRL_STS_ENERGYON_ ((u16)0x0002)
+
+#define SPECIAL_CTRL_STS (27)
+#define SPECIAL_CTRL_STS_OVRRD_AMDIX_ ((u16)0x8000)
+#define SPECIAL_CTRL_STS_AMDIX_ENABLE_ ((u16)0x4000)
+#define SPECIAL_CTRL_STS_AMDIX_STATE_ ((u16)0x2000)
+
+#define PHY_INT_SRC (29)
+#define PHY_INT_SRC_ENERGY_ON_ ((u16)0x0080)
+#define PHY_INT_SRC_ANEG_COMP_ ((u16)0x0040)
+#define PHY_INT_SRC_REMOTE_FAULT_ ((u16)0x0020)
+#define PHY_INT_SRC_LINK_DOWN_ ((u16)0x0010)
+
+#define PHY_INT_MASK (30)
+#define PHY_INT_MASK_ENERGY_ON_ ((u16)0x0080)
+#define PHY_INT_MASK_ANEG_COMP_ ((u16)0x0040)
+#define PHY_INT_MASK_REMOTE_FAULT_ ((u16)0x0020)
+#define PHY_INT_MASK_LINK_DOWN_ ((u16)0x0010)
+#define PHY_INT_MASK_DEFAULT_ (PHY_INT_MASK_ANEG_COMP_ | \
+ PHY_INT_MASK_LINK_DOWN_)
+
+#define PHY_SPECIAL (31)
+#define PHY_SPECIAL_SPD_ ((u16)0x001C)
+#define PHY_SPECIAL_SPD_10HALF_ ((u16)0x0004)
+#define PHY_SPECIAL_SPD_10FULL_ ((u16)0x0014)
+#define PHY_SPECIAL_SPD_100HALF_ ((u16)0x0008)
+#define PHY_SPECIAL_SPD_100FULL_ ((u16)0x0018)
+
+/* USB Vendor Requests */
+#define USB_VENDOR_REQUEST_WRITE_REGISTER 0xA0
+#define USB_VENDOR_REQUEST_READ_REGISTER 0xA1
+#define USB_VENDOR_REQUEST_GET_STATS 0xA2
+
+/* Interrupt Endpoint status word bitfields */
+#define INT_ENP_TX_STOP_ ((u32)BIT(17))
+#define INT_ENP_RX_STOP_ ((u32)BIT(16))
+#define INT_ENP_PHY_INT_ ((u32)BIT(15))
+#define INT_ENP_TXE_ ((u32)BIT(14))
+#define INT_ENP_TDFU_ ((u32)BIT(13))
+#define INT_ENP_TDFO_ ((u32)BIT(12))
+#define INT_ENP_RXDF_ ((u32)BIT(11))
+
+#endif /* _SMSC95XX_H */
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 8463efb9e0b1..02d25c743994 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -512,14 +512,13 @@ static int unlink_urbs (struct usbnet *dev, struct sk_buff_head *q)
int count = 0;
spin_lock_irqsave (&q->lock, flags);
- for (skb = q->next; skb != (struct sk_buff *) q; skb = skbnext) {
+ skb_queue_walk_safe(q, skb, skbnext) {
struct skb_data *entry;
struct urb *urb;
int retval;
entry = (struct skb_data *) skb->cb;
urb = entry->urb;
- skbnext = skb->next;
// during some PM-driven resume scenarios,
// these (async) unlinks complete immediately
generated by cgit (git 2.34.1) at 2024-06-09 12:16:23 +0000