void usbnet_disconnect (struct usb_interface *intf)
{
struct usbnet *dev;
struct usb_device *xdev;
struct net_device *net;
dev = usb_get_intfdata(intf);
usb_set_intfdata(intf, NULL);
if (!dev)
return;
xdev = interface_to_usbdev (intf);
if (netif_msg_probe (dev))
devinfo (dev, "unregister '%s' usb-%s-%s, %s",
intf->dev.driver->name,
xdev->bus->bus_name, xdev->devpath,
dev->driver_info->description);
net = dev->net;
unregister_netdev (net);
/* we don't hold rtnl here ... */
flush_scheduled_work ();
if (dev->driver_info->unbind)
dev->driver_info->unbind (dev, intf);
free_netdev(net);
usb_put_dev (xdev);
}
static int xgbe_config_irqs(struct xgbe_prv_data *pdata)
{
int ret;
ret = xgbe_config_multi_msi(pdata);
if (!ret)
goto out;
ret = pci_alloc_irq_vectors(pdata->pcidev, 1, 1,
PCI_IRQ_LEGACY | PCI_IRQ_MSI);
if (ret < 0) {
dev_info(pdata->dev, "single IRQ enablement failed\n");
return ret;
}
pdata->isr_as_tasklet = pdata->pcidev->msi_enabled ? 1 : 0;
pdata->irq_count = 1;
pdata->channel_irq_count = 1;
pdata->dev_irq = pci_irq_vector(pdata->pcidev, 0);
pdata->ecc_irq = pci_irq_vector(pdata->pcidev, 0);
pdata->i2c_irq = pci_irq_vector(pdata->pcidev, 0);
pdata->an_irq = pci_irq_vector(pdata->pcidev, 0);
if (netif_msg_probe(pdata))
dev_dbg(pdata->dev, "single %s interrupt enabled\n",
pdata->pcidev->msi_enabled ? "MSI" : "legacy");
out:
if (netif_msg_probe(pdata)) {
unsigned int i;
dev_dbg(pdata->dev, " dev irq=%d\n", pdata->dev_irq);
dev_dbg(pdata->dev, " ecc irq=%d\n", pdata->ecc_irq);
dev_dbg(pdata->dev, " i2c irq=%d\n", pdata->i2c_irq);
dev_dbg(pdata->dev, " an irq=%d\n", pdata->an_irq);
for (i = 0; i < pdata->channel_irq_count; i++)
dev_dbg(pdata->dev, " dma%u irq=%d\n",
i, pdata->channel_irq[i]);
}
return 0;
}
static int pl_reset(struct usbnet *dev)
{
int status;
/* some units seem to need this reset, others reject it utterly.
* FIXME be more like "naplink" or windows drivers.
*/
status = pl_set_QuickLink_features(dev,
PL_S_EN|PL_RESET_OUT|PL_RESET_IN|PL_PEER_E);
if (status != 0 && netif_msg_probe(dev))
netif_dbg(dev, link, dev->net, "pl_reset --> %d\n", status);
return 0;
}
static int pl_reset(struct usbnet *dev)
{
int status;
/*
*/
status = pl_set_QuickLink_features(dev,
PL_S_EN|PL_RESET_OUT|PL_RESET_IN|PL_PEER_E);
if (status != 0 && netif_msg_probe(dev))
netif_dbg(dev, link, dev->net, "pl_reset --> %d\n", status);
return 0;
}
void unregister_networkdev(struct bcm_mini_adapter *Adapter)
{
struct net_device *net = Adapter->dev;
struct bcm_interface_adapter *IntfAdapter = Adapter->pvInterfaceAdapter;
struct usb_interface *udev = IntfAdapter->interface;
struct usb_device *xdev = IntfAdapter->udev;
if (netif_msg_probe(Adapter))
dev_info(&udev->dev, PFX "%s: unregister usb-%s%s\n",
net->name, xdev->bus->bus_name, xdev->devpath);
unregister_netdev(Adapter->dev);
}
int register_networkdev(struct bcm_mini_adapter *Adapter)
{
struct net_device *net = Adapter->dev;
struct bcm_interface_adapter *IntfAdapter = Adapter->pvInterfaceAdapter;
struct usb_interface *udev = IntfAdapter->interface;
struct usb_device *xdev = IntfAdapter->udev;
int result;
net->netdev_ops = &bcmNetDevOps;
net->ethtool_ops = &bcm_ethtool_ops;
net->mtu = MTU_SIZE; /* 1400 Bytes */
net->tx_queue_len = TX_QLEN;
net->flags |= IFF_NOARP;
netif_carrier_off(net);
SET_NETDEV_DEVTYPE(net, &wimax_type);
/* Read the MAC Address from EEPROM */
result = ReadMacAddressFromNVM(Adapter);
if (result != STATUS_SUCCESS) {
dev_err(&udev->dev,
PFX "Error in Reading the mac Address: %d", result);
return -EIO;
}
result = register_netdev(net);
if (result)
return result;
gblpnetdev = Adapter->dev;
if (netif_msg_probe(Adapter))
dev_info(&udev->dev, PFX "%s: register usb-%s-%s %pM\n",
net->name, xdev->bus->bus_name, xdev->devpath,
net->dev_addr);
return 0;
}
static int xgbe_config_multi_msi(struct xgbe_prv_data *pdata)
{
unsigned int vector_count;
unsigned int i, j;
int ret;
vector_count = XGBE_MSI_BASE_COUNT;
vector_count += max(pdata->rx_ring_count,
pdata->tx_ring_count);
ret = pci_alloc_irq_vectors(pdata->pcidev, XGBE_MSI_MIN_COUNT,
vector_count, PCI_IRQ_MSI | PCI_IRQ_MSIX);
if (ret < 0) {
dev_info(pdata->dev, "multi MSI/MSI-X enablement failed\n");
return ret;
}
pdata->isr_as_tasklet = 1;
pdata->irq_count = ret;
pdata->dev_irq = pci_irq_vector(pdata->pcidev, 0);
pdata->ecc_irq = pci_irq_vector(pdata->pcidev, 1);
pdata->i2c_irq = pci_irq_vector(pdata->pcidev, 2);
pdata->an_irq = pci_irq_vector(pdata->pcidev, 3);
for (i = XGBE_MSI_BASE_COUNT, j = 0; i < ret; i++, j++)
pdata->channel_irq[j] = pci_irq_vector(pdata->pcidev, i);
pdata->channel_irq_count = j;
pdata->per_channel_irq = 1;
pdata->channel_irq_mode = XGBE_IRQ_MODE_LEVEL;
if (netif_msg_probe(pdata))
dev_dbg(pdata->dev, "multi %s interrupts enabled\n",
pdata->pcidev->msix_enabled ? "MSI-X" : "MSI");
return 0;
}
static void kevent(void *data)
{
struct usbnet *dev = (struct usbnet *)data;
#else
static void kevent(struct work_struct *work)
{
struct usbnet *dev =
container_of(work, struct usbnet, kevent);
#endif
int status;
/* usb_clear_halt() needs a thread context */
if (test_bit(EVENT_TX_HALT, &dev->flags)) {
unlink_urbs(dev, &dev->txq);
status = usb_clear_halt(dev->udev, dev->out);
if (status < 0
&& status != -EPIPE
&& status != -ESHUTDOWN) {
if (netif_msg_tx_err(dev))
deverr(dev, "can't clear tx halt, status %d",
status);
} else {
clear_bit(EVENT_TX_HALT, &dev->flags);
if (status != -ESHUTDOWN)
netif_wake_queue(dev->net);
}
}
if (test_bit(EVENT_RX_HALT, &dev->flags)) {
unlink_urbs(dev, &dev->rxq);
status = usb_clear_halt(dev->udev, dev->in);
if (status < 0
&& status != -EPIPE
&& status != -ESHUTDOWN) {
if (netif_msg_rx_err(dev))
deverr(dev, "can't clear rx halt, status %d",
status);
} else {
clear_bit(EVENT_RX_HALT, &dev->flags);
tasklet_schedule(&dev->bh);
}
}
/* tasklet could resubmit itself forever if memory is tight */
if (test_bit(EVENT_RX_MEMORY, &dev->flags)) {
struct urb *urb = NULL;
if (netif_running(dev->net))
urb = usb_alloc_urb(0, GFP_KERNEL);
else
clear_bit(EVENT_RX_MEMORY, &dev->flags);
if (urb != NULL) {
clear_bit(EVENT_RX_MEMORY, &dev->flags);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 14)
urb->transfer_flags |= URB_ASYNC_UNLINK;
#endif
rx_submit(dev, urb, GFP_KERNEL);
tasklet_schedule(&dev->bh);
}
}
if (test_bit(EVENT_LINK_RESET, &dev->flags)) {
struct driver_info *info = dev->driver_info;
int retval = 0;
clear_bit(EVENT_LINK_RESET, &dev->flags);
if (info->link_reset) {
retval = info->link_reset(dev);
if (retval < 0) {
devinfo(dev,
"link reset failed (%d) usbnet usb-%s-%s, %s",
retval,
dev->udev->bus->bus_name,
dev->udev->devpath,
info->description);
}
}
}
if (dev->flags)
devdbg(dev, "kevent done, flags = 0x%lx", dev->flags);
}
/*-------------------------------------------------------------------------*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)
static void tx_complete(struct urb *urb, struct pt_regs *regs)
#else
static void tx_complete(struct urb *urb)
#endif
{
struct sk_buff *skb = (struct sk_buff *) urb->context;
struct skb_data *entry = (struct skb_data *) skb->cb;
struct usbnet *dev = entry->dev;
if (urb->status == 0) {
dev->stats.tx_packets++;
dev->stats.tx_bytes += entry->length;
} else {
dev->stats.tx_errors++;
switch (urb->status) {
case -EPIPE:
axusbnet_defer_kevent(dev, EVENT_TX_HALT);
break;
/* software-driven interface shutdown */
case -ECONNRESET: /* async unlink */
case -ESHUTDOWN: /* hardware gone */
break;
/* like rx, tx gets controller i/o faults during khubd delays */
/* and so it uses the same throttling mechanism. */
case -EPROTO:
case -ETIME:
case -EILSEQ:
if (!timer_pending(&dev->delay)) {
mod_timer(&dev->delay,
jiffies + THROTTLE_JIFFIES);
if (netif_msg_link(dev))
devdbg(dev, "tx throttle %d",
urb->status);
}
netif_stop_queue(dev->net);
break;
default:
if (netif_msg_tx_err(dev))
devdbg(dev, "tx err %d", entry->urb->status);
break;
}
}
urb->dev = NULL;
entry->state = tx_done;
defer_bh(dev, skb, &dev->txq);
}
/*-------------------------------------------------------------------------*/
static
void axusbnet_tx_timeout(struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
unlink_urbs(dev, &dev->txq);
tasklet_schedule(&dev->bh);
/* FIXME: device recovery -- reset? */
}
/*-------------------------------------------------------------------------*/
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 32)
static int
#else
static netdev_tx_t
#endif
axusbnet_start_xmit(struct sk_buff *skb, struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
int length;
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 */
if (info->tx_fixup) {
skb = info->tx_fixup(dev, skb, GFP_ATOMIC);
if (!skb) {
if (netif_msg_tx_err(dev))
devdbg(dev, "can't tx_fixup skb");
goto drop;
}
}
length = skb->len;
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!urb) {
if (netif_msg_tx_err(dev))
devdbg(dev, "no urb");
goto drop;
}
entry = (struct skb_data *) skb->cb;
entry->urb = urb;
entry->dev = dev;
entry->state = tx_start;
entry->length = length;
usb_fill_bulk_urb(urb, dev->udev, dev->out, skb->data,
skb->len, tx_complete, skb);
/* don't assume the hardware handles USB_ZERO_PACKET
* NOTE: strictly conforming cdc-ether devices should expect
* the ZLP here, but ignore the one-byte packet.
*/
if (!(info->flags & FLAG_SEND_ZLP) && (length % dev->maxpacket) == 0) {
urb->transfer_buffer_length++;
if (skb_tailroom(skb)) {
skb->data[skb->len] = 0;
__skb_put(skb, 1);
}
}
spin_lock_irqsave(&dev->txq.lock, flags);
switch ((retval = usb_submit_urb(urb, GFP_ATOMIC))) {
case -EPIPE:
netif_stop_queue(net);
axusbnet_defer_kevent(dev, EVENT_TX_HALT);
break;
default:
if (netif_msg_tx_err(dev))
devdbg(dev, "tx: submit urb err %d", retval);
break;
case 0:
net->trans_start = jiffies;
__skb_queue_tail(&dev->txq, skb);
if (dev->txq.qlen >= TX_QLEN(dev))
netif_stop_queue(net);
}
spin_unlock_irqrestore(&dev->txq.lock, flags);
if (retval) {
if (netif_msg_tx_err(dev))
devdbg(dev, "drop, code %d", retval);
drop:
dev->stats.tx_dropped++;
if (skb)
dev_kfree_skb_any(skb);
usb_free_urb(urb);
} else if (netif_msg_tx_queued(dev)) {
devdbg(dev, "> tx, len %d, type 0x%x",
length, skb->protocol);
}
return NETDEV_TX_OK;
}
/*-------------------------------------------------------------------------*/
/* tasklet (work deferred from completions, in_irq) or timer */
static void axusbnet_bh(unsigned long param)
{
struct usbnet *dev = (struct usbnet *) param;
struct sk_buff *skb;
struct skb_data *entry;
while ((skb = skb_dequeue(&dev->done))) {
entry = (struct skb_data *) skb->cb;
switch (entry->state) {
case rx_done:
entry->state = rx_cleanup;
rx_process(dev, skb);
continue;
case tx_done:
case rx_cleanup:
usb_free_urb(entry->urb);
dev_kfree_skb(skb);
continue;
default:
devdbg(dev, "bogus skb state %d", entry->state);
}
}
/* waiting for all pending urbs to complete? */
if (dev->wait) {
if ((dev->txq.qlen + dev->rxq.qlen + dev->done.qlen) == 0)
wake_up(dev->wait);
/* or are we maybe short a few urbs? */
} else if (netif_running(dev->net)
&& netif_device_present(dev->net)
&& !timer_pending(&dev->delay)
&& !test_bit(EVENT_RX_HALT, &dev->flags)) {
int temp = dev->rxq.qlen;
int qlen = RX_QLEN(dev);
if (temp < qlen) {
struct urb *urb;
int i;
/* don't refill the queue all at once */
for (i = 0; i < 10 && dev->rxq.qlen < qlen; i++) {
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (urb != NULL) {
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 14)
urb->transfer_flags |= URB_ASYNC_UNLINK;
#endif
rx_submit(dev, urb, GFP_ATOMIC);
}
}
if (temp != dev->rxq.qlen && netif_msg_link(dev))
devdbg(dev, "rxqlen %d --> %d",
temp, dev->rxq.qlen);
if (dev->rxq.qlen < qlen)
tasklet_schedule(&dev->bh);
}
if (dev->txq.qlen < TX_QLEN(dev))
netif_wake_queue(dev->net);
}
}
/*-------------------------------------------------------------------------
*
* USB Device Driver support
*
*-------------------------------------------------------------------------*/
/* precondition: never called in_interrupt */
static
void axusbnet_disconnect(struct usb_interface *intf)
{
struct usbnet *dev;
struct usb_device *xdev;
struct net_device *net;
dev = usb_get_intfdata(intf);
usb_set_intfdata(intf, NULL);
if (!dev)
return;
xdev = interface_to_usbdev(intf);
if (netif_msg_probe(dev))
devinfo(dev, "unregister '%s' usb-%s-%s, %s",
intf->dev.driver->name,
xdev->bus->bus_name, xdev->devpath,
dev->driver_info->description);
net = dev->net;
unregister_netdev(net);
/* we don't hold rtnl here ... */
flush_scheduled_work();
if (dev->driver_info->unbind)
dev->driver_info->unbind(dev, intf);
free_netdev(net);
usb_put_dev(xdev);
}
/*-------------------------------------------------------------------------*/
/* precondition: never called in_interrupt */
static int
axusbnet_probe(struct usb_interface *udev, const struct usb_device_id *prod)
{
struct usbnet *dev;
struct net_device *net;
struct usb_host_interface *interface;
struct driver_info *info;
struct usb_device *xdev;
int status;
const char *name;
name = udev->dev.driver->name;
info = (struct driver_info *) prod->driver_info;
if (!info) {
printk(KERN_ERR "blacklisted by %s\n", name);
return -ENODEV;
}
xdev = interface_to_usbdev(udev);
interface = udev->cur_altsetting;
usb_get_dev(xdev);
status = -ENOMEM;
/* set up our own records */
net = alloc_etherdev(sizeof(*dev));
if (!net) {
printk(KERN_ERR "can't kmalloc dev");
goto out;
}
dev = netdev_priv(net);
dev->udev = xdev;
dev->intf = udev;
dev->driver_info = info;
dev->driver_name = name;
dev->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV |
NETIF_MSG_PROBE | NETIF_MSG_LINK);
skb_queue_head_init(&dev->rxq);
skb_queue_head_init(&dev->txq);
skb_queue_head_init(&dev->done);
dev->bh.func = axusbnet_bh;
dev->bh.data = (unsigned long) dev;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
INIT_WORK(&dev->kevent, kevent, dev);
#else
INIT_WORK(&dev->kevent, kevent);
#endif
dev->delay.function = axusbnet_bh;
dev->delay.data = (unsigned long) dev;
init_timer(&dev->delay);
/* mutex_init(&dev->phy_mutex); */
dev->net = net;
/* rx and tx sides can use different message sizes;
* bind() should set rx_urb_size in that case.
*/
dev->hard_mtu = net->mtu + net->hard_header_len;
#if 0
/* dma_supported() is deeply broken on almost all architectures */
/* possible with some EHCI controllers */
if (dma_supported(&udev->dev, DMA_BIT_MASK(64)))
net->features |= NETIF_F_HIGHDMA;
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 30)
net->open = axusbnet_open,
net->stop = axusbnet_stop,
net->hard_start_xmit = axusbnet_start_xmit,
net->tx_timeout = axusbnet_tx_timeout,
net->get_stats = axusbnet_get_stats;
#endif
net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
net->ethtool_ops = &axusbnet_ethtool_ops;
/* allow device-specific bind/init procedures */
/* NOTE net->name still not usable ... */
status = info->bind(dev, udev);
if (status < 0) {
deverr(dev, "Binding device failed: %d", status);
goto out1;
}
/* maybe the remote can't receive an Ethernet MTU */
if (net->mtu > (dev->hard_mtu - net->hard_header_len))
net->mtu = dev->hard_mtu - net->hard_header_len;
status = init_status(dev, udev);
if (status < 0)
goto out3;
if (!dev->rx_urb_size)
dev->rx_urb_size = dev->hard_mtu;
dev->maxpacket = usb_maxpacket(dev->udev, dev->out, 1);
SET_NETDEV_DEV(net, &udev->dev);
status = register_netdev(net);
if (status) {
deverr(dev, "net device registration failed: %d", status);
goto out3;
}
if (netif_msg_probe(dev))
devinfo(dev, "register '%s' at usb-%s-%s, %s, %pM",
udev->dev.driver->name,
xdev->bus->bus_name, xdev->devpath,
dev->driver_info->description,
net->dev_addr);
/* ok, it's ready to go. */
usb_set_intfdata(udev, dev);
/* start as if the link is up */
netif_device_attach(net);
return 0;
out3:
if (info->unbind)
info->unbind(dev, udev);
out1:
free_netdev(net);
out:
usb_put_dev(xdev);
return status;
}
/*-------------------------------------------------------------------------*/
/*
* suspend the whole driver as soon as the first interface is suspended
* resume only when the last interface is resumed
*/
static int axusbnet_suspend(struct usb_interface *intf,
#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 10)
pm_message_t message)
#else
u32 message)
#endif
{
struct usbnet *dev = usb_get_intfdata(intf);
if (!dev->suspend_count++) {
/*
* accelerate emptying of the rx and queues, to avoid
* having everything error out.
*/
netif_device_detach(dev->net);
(void) unlink_urbs(dev, &dev->rxq);
(void) unlink_urbs(dev, &dev->txq);
usb_kill_urb(dev->interrupt);
/*
* reattach so runtime management can use and
* wake the device
*/
netif_device_attach(dev->net);
}
return 0;
}
static int
axusbnet_resume(struct usb_interface *intf)
{
struct usbnet *dev = usb_get_intfdata(intf);
int retval = 0;
if (!--dev->suspend_count)
tasklet_schedule(&dev->bh);
retval = init_status(dev, intf);
if (retval < 0)
return retval;
if (dev->interrupt) {
retval = usb_submit_urb(dev->interrupt, GFP_KERNEL);
if (retval < 0 && netif_msg_ifup(dev))
deverr(dev, "intr submit %d", retval);
}
return retval;
}
int
usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
{
struct usbnet *dev;
struct net_device *net;
struct usb_host_interface *interface;
struct driver_info *info;
struct usb_device *xdev;
int status;
const char *name;
name = udev->dev.driver->name;
info = (struct driver_info *) prod->driver_info;
if (!info) {
dev_dbg (&udev->dev, "blacklisted by %s\n", name);
return -ENODEV;
}
xdev = interface_to_usbdev (udev);
interface = udev->cur_altsetting;
usb_get_dev (xdev);
status = -ENOMEM;
// set up our own records
//net = alloc_etherdev(sizeof(*dev));
net = alloc_netdev( sizeof(*dev), "usbeth%d", ether_setup );
if (!net) {
dbg ("can't kmalloc dev");
goto out;
}
dev = netdev_priv(net);
dev->udev = xdev;
dev->driver_info = info;
dev->driver_name = name;
dev->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV
| NETIF_MSG_PROBE | NETIF_MSG_LINK);
skb_queue_head_init (&dev->rxq);
skb_queue_head_init (&dev->txq);
skb_queue_head_init (&dev->done);
dev->bh.func = usbnet_bh;
dev->bh.data = (unsigned long) dev;
INIT_WORK (&dev->kevent, kevent);
dev->delay.function = usbnet_bh;
dev->delay.data = (unsigned long) dev;
init_timer (&dev->delay);
mutex_init (&dev->phy_mutex);
SET_MODULE_OWNER (net);
dev->net = net;
strcpy (net->name, "usbeth%d");
memcpy (net->dev_addr, node_id, sizeof node_id);
/* rx and tx sides can use different message sizes;
* bind() should set rx_urb_size in that case.
*/
dev->hard_mtu = net->mtu + net->hard_header_len;
#if 0
// dma_supported() is deeply broken on almost all architectures
// possible with some EHCI controllers
if (dma_supported (&udev->dev, DMA_64BIT_MASK))
net->features |= NETIF_F_HIGHDMA;
#endif
net->change_mtu = usbnet_change_mtu;
net->get_stats = usbnet_get_stats;
net->hard_start_xmit = usbnet_start_xmit;
net->open = usbnet_open;
net->stop = usbnet_stop;
net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
net->tx_timeout = usbnet_tx_timeout;
net->ethtool_ops = &usbnet_ethtool_ops;
// allow device-specific bind/init procedures
// NOTE net->name still not usable ...
if (info->bind) {
status = info->bind (dev, udev);
if (status < 0)
goto out1;
// heuristic: "usb%d" for links we know are two-host,
// else "eth%d" when there's reasonable doubt. userspace
// can rename the link if it knows better.
if ((dev->driver_info->flags & FLAG_ETHER) != 0
&& (net->dev_addr [0] & 0x02) == 0)
strcpy (net->name, "usbeth%d");
/* maybe the remote can't receive an Ethernet MTU */
if (net->mtu > (dev->hard_mtu - net->hard_header_len))
net->mtu = dev->hard_mtu - net->hard_header_len;
} else if (!info->in || !info->out)
status = usbnet_get_endpoints (dev, udev);
else {
dev->in = usb_rcvbulkpipe (xdev, info->in);
dev->out = usb_sndbulkpipe (xdev, info->out);
if (!(info->flags & FLAG_NO_SETINT))
status = usb_set_interface (xdev,
interface->desc.bInterfaceNumber,
interface->desc.bAlternateSetting);
else
status = 0;
}
if (status == 0 && dev->status)
status = init_status (dev, udev);
if (status < 0)
goto out3;
if (!dev->rx_urb_size)
dev->rx_urb_size = dev->hard_mtu;
dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
SET_NETDEV_DEV(net, &udev->dev);
status = register_netdev (net);
if (status)
goto out3;
if (netif_msg_probe (dev))
devinfo (dev, "register '%s' at usb-%s-%s, %s, "
"%02x:%02x:%02x:%02x:%02x:%02x",
udev->dev.driver->name,
xdev->bus->bus_name, xdev->devpath,
dev->driver_info->description,
net->dev_addr [0], net->dev_addr [1],
net->dev_addr [2], net->dev_addr [3],
net->dev_addr [4], net->dev_addr [5]);
// ok, it's ready to go.
usb_set_intfdata (udev, dev);
// start as if the link is up
netif_device_attach (net);
return 0;
out3:
if (info->unbind)
info->unbind (dev, udev);
out1:
free_netdev(net);
out:
usb_put_dev(xdev);
return status;
}
int
generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
{
int retval;
struct net_device *net = dev->net;
struct cdc_state *info = (void *) &dev->data;
union {
void *buf;
struct rndis_msg_hdr *header;
struct rndis_init *init;
struct rndis_init_c *init_c;
struct rndis_query *get;
struct rndis_query_c *get_c;
struct rndis_set *set;
struct rndis_set_c *set_c;
struct rndis_halt *halt;
} u;
u32 tmp;
__le32 phym_unspec, *phym;
int reply_len;
unsigned char *bp;
/* we can't rely on i/o from stack working, or stack allocation */
u.buf = kmalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
if (!u.buf)
return -ENOMEM;
retval = usbnet_generic_cdc_bind(dev, intf);
if (retval < 0)
goto fail;
u.init->msg_type = RNDIS_MSG_INIT;
u.init->msg_len = cpu_to_le32(sizeof *u.init);
u.init->major_version = cpu_to_le32(1);
u.init->minor_version = cpu_to_le32(0);
/* max transfer (in spec) is 0x4000 at full speed, but for
* TX we'll stick to one Ethernet packet plus RNDIS framing.
* For RX we handle drivers that zero-pad to end-of-packet.
* Don't let userspace change these settings.
*
* NOTE: there still seems to be wierdness here, as if we need
* to do some more things to make sure WinCE targets accept this.
* They default to jumbograms of 8KB or 16KB, which is absurd
* for such low data rates and which is also more than Linux
* can usually expect to allocate for SKB data...
*/
net->hard_header_len += sizeof (struct rndis_data_hdr);
dev->hard_mtu = net->mtu + net->hard_header_len;
dev->maxpacket = usb_maxpacket(dev->udev, dev->out, 1);
if (dev->maxpacket == 0) {
if (netif_msg_probe(dev))
dev_dbg(&intf->dev, "dev->maxpacket can't be 0\n");
retval = -EINVAL;
goto fail_and_release;
}
dev->rx_urb_size = dev->hard_mtu + (dev->maxpacket + 1);
dev->rx_urb_size &= ~(dev->maxpacket - 1);
u.init->max_transfer_size = cpu_to_le32(dev->rx_urb_size);
net->netdev_ops = &rndis_netdev_ops;
retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
if (unlikely(retval < 0)) {
/* it might not even be an RNDIS device!! */
dev_err(&intf->dev, "RNDIS init failed, %d\n", retval);
goto fail_and_release;
}
tmp = le32_to_cpu(u.init_c->max_transfer_size);
if (tmp < dev->hard_mtu) {
if (tmp <= net->hard_header_len) {
dev_err(&intf->dev,
"dev can't take %u byte packets (max %u)\n",
dev->hard_mtu, tmp);
retval = -EINVAL;
goto halt_fail_and_release;
}
dev_warn(&intf->dev,
"dev can't take %u byte packets (max %u), "
"adjusting MTU to %u\n",
dev->hard_mtu, tmp, tmp - net->hard_header_len);
dev->hard_mtu = tmp;
net->mtu = dev->hard_mtu - net->hard_header_len;
}
/* REVISIT: peripheral "alignment" request is ignored ... */
dev_dbg(&intf->dev,
"hard mtu %u (%u from dev), rx buflen %Zu, align %d\n",
dev->hard_mtu, tmp, dev->rx_urb_size,
1 << le32_to_cpu(u.init_c->packet_alignment));
/* module has some device initialization code needs to be done right
* after RNDIS_INIT */
if (dev->driver_info->early_init &&
dev->driver_info->early_init(dev) != 0)
goto halt_fail_and_release;
/* Check physical medium */
phym = NULL;
reply_len = sizeof *phym;
retval = rndis_query(dev, intf, u.buf, OID_GEN_PHYSICAL_MEDIUM,
0, (void **) &phym, &reply_len);
if (retval != 0 || !phym) {
/* OID is optional so don't fail here. */
phym_unspec = RNDIS_PHYSICAL_MEDIUM_UNSPECIFIED;
phym = &phym_unspec;
}
if ((flags & FLAG_RNDIS_PHYM_WIRELESS) &&
*phym != RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN) {
if (netif_msg_probe(dev))
dev_dbg(&intf->dev, "driver requires wireless "
"physical medium, but device is not.\n");
retval = -ENODEV;
goto halt_fail_and_release;
}
if ((flags & FLAG_RNDIS_PHYM_NOT_WIRELESS) &&
*phym == RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN) {
if (netif_msg_probe(dev))
dev_dbg(&intf->dev, "driver requires non-wireless "
"physical medium, but device is wireless.\n");
retval = -ENODEV;
goto halt_fail_and_release;
}
/* Get designated host ethernet address */
reply_len = ETH_ALEN;
retval = rndis_query(dev, intf, u.buf, OID_802_3_PERMANENT_ADDRESS,
48, (void **) &bp, &reply_len);
if (unlikely(retval< 0)) {
dev_err(&intf->dev, "rndis get ethaddr, %d\n", retval);
goto halt_fail_and_release;
}
memcpy(net->dev_addr, bp, ETH_ALEN);
memcpy(net->perm_addr, bp, ETH_ALEN);
/* set a nonzero filter to enable data transfers */
memset(u.set, 0, sizeof *u.set);
u.set->msg_type = RNDIS_MSG_SET;
u.set->msg_len = cpu_to_le32(4 + sizeof *u.set);
u.set->oid = OID_GEN_CURRENT_PACKET_FILTER;
u.set->len = cpu_to_le32(4);
u.set->offset = cpu_to_le32((sizeof *u.set) - 8);
*(__le32 *)(u.buf + sizeof *u.set) = RNDIS_DEFAULT_FILTER;
retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
if (unlikely(retval < 0)) {
dev_err(&intf->dev, "rndis set packet filter, %d\n", retval);
goto halt_fail_and_release;
}
retval = 0;
kfree(u.buf);
return retval;
halt_fail_and_release:
memset(u.halt, 0, sizeof *u.halt);
u.halt->msg_type = RNDIS_MSG_HALT;
u.halt->msg_len = cpu_to_le32(sizeof *u.halt);
(void) rndis_command(dev, (void *)u.halt, CONTROL_BUFFER_SIZE);
fail_and_release:
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver_of(intf), info->data);
info->data = NULL;
fail:
kfree(u.buf);
return retval;
}
static int xgbe_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct xgbe_prv_data *pdata;
struct device *dev = &pdev->dev;
void __iomem * const *iomap_table;
struct pci_dev *rdev;
unsigned int ma_lo, ma_hi;
unsigned int reg;
int bar_mask;
int ret;
pdata = xgbe_alloc_pdata(dev);
if (IS_ERR(pdata)) {
ret = PTR_ERR(pdata);
goto err_alloc;
}
pdata->pcidev = pdev;
pci_set_drvdata(pdev, pdata);
/* Get the version data */
pdata->vdata = (struct xgbe_version_data *)id->driver_data;
ret = pcim_enable_device(pdev);
if (ret) {
dev_err(dev, "pcim_enable_device failed\n");
goto err_pci_enable;
}
/* Obtain the mmio areas for the device */
bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
ret = pcim_iomap_regions(pdev, bar_mask, XGBE_DRV_NAME);
if (ret) {
dev_err(dev, "pcim_iomap_regions failed\n");
goto err_pci_enable;
}
iomap_table = pcim_iomap_table(pdev);
if (!iomap_table) {
dev_err(dev, "pcim_iomap_table failed\n");
ret = -ENOMEM;
goto err_pci_enable;
}
pdata->xgmac_regs = iomap_table[XGBE_XGMAC_BAR];
if (!pdata->xgmac_regs) {
dev_err(dev, "xgmac ioremap failed\n");
ret = -ENOMEM;
goto err_pci_enable;
}
pdata->xprop_regs = pdata->xgmac_regs + XGBE_MAC_PROP_OFFSET;
pdata->xi2c_regs = pdata->xgmac_regs + XGBE_I2C_CTRL_OFFSET;
if (netif_msg_probe(pdata)) {
dev_dbg(dev, "xgmac_regs = %p\n", pdata->xgmac_regs);
dev_dbg(dev, "xprop_regs = %p\n", pdata->xprop_regs);
dev_dbg(dev, "xi2c_regs = %p\n", pdata->xi2c_regs);
}
pdata->xpcs_regs = iomap_table[XGBE_XPCS_BAR];
if (!pdata->xpcs_regs) {
dev_err(dev, "xpcs ioremap failed\n");
ret = -ENOMEM;
goto err_pci_enable;
}
if (netif_msg_probe(pdata))
dev_dbg(dev, "xpcs_regs = %p\n", pdata->xpcs_regs);
/* Set the PCS indirect addressing definition registers */
rdev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0));
if (rdev &&
(rdev->vendor == PCI_VENDOR_ID_AMD) && (rdev->device == 0x15d0)) {
pdata->xpcs_window_def_reg = PCS_V2_RV_WINDOW_DEF;
pdata->xpcs_window_sel_reg = PCS_V2_RV_WINDOW_SELECT;
} else {
pdata->xpcs_window_def_reg = PCS_V2_WINDOW_DEF;
pdata->xpcs_window_sel_reg = PCS_V2_WINDOW_SELECT;
}
pci_dev_put(rdev);
/* Configure the PCS indirect addressing support */
reg = XPCS32_IOREAD(pdata, pdata->xpcs_window_def_reg);
pdata->xpcs_window = XPCS_GET_BITS(reg, PCS_V2_WINDOW_DEF, OFFSET);
pdata->xpcs_window <<= 6;
pdata->xpcs_window_size = XPCS_GET_BITS(reg, PCS_V2_WINDOW_DEF, SIZE);
pdata->xpcs_window_size = 1 << (pdata->xpcs_window_size + 7);
pdata->xpcs_window_mask = pdata->xpcs_window_size - 1;
if (netif_msg_probe(pdata)) {
dev_dbg(dev, "xpcs window def = %#010x\n",
pdata->xpcs_window_def_reg);
dev_dbg(dev, "xpcs window sel = %#010x\n",
pdata->xpcs_window_sel_reg);
dev_dbg(dev, "xpcs window = %#010x\n",
pdata->xpcs_window);
dev_dbg(dev, "xpcs window size = %#010x\n",
pdata->xpcs_window_size);
dev_dbg(dev, "xpcs window mask = %#010x\n",
pdata->xpcs_window_mask);
}
pci_set_master(pdev);
/* Enable all interrupts in the hardware */
XP_IOWRITE(pdata, XP_INT_EN, 0x1fffff);
/* Retrieve the MAC address */
ma_lo = XP_IOREAD(pdata, XP_MAC_ADDR_LO);
ma_hi = XP_IOREAD(pdata, XP_MAC_ADDR_HI);
pdata->mac_addr[0] = ma_lo & 0xff;
pdata->mac_addr[1] = (ma_lo >> 8) & 0xff;
pdata->mac_addr[2] = (ma_lo >> 16) & 0xff;
pdata->mac_addr[3] = (ma_lo >> 24) & 0xff;
pdata->mac_addr[4] = ma_hi & 0xff;
pdata->mac_addr[5] = (ma_hi >> 8) & 0xff;
if (!XP_GET_BITS(ma_hi, XP_MAC_ADDR_HI, VALID) ||
!is_valid_ether_addr(pdata->mac_addr)) {
dev_err(dev, "invalid mac address\n");
ret = -EINVAL;
goto err_pci_enable;
}
/* Clock settings */
pdata->sysclk_rate = XGBE_V2_DMA_CLOCK_FREQ;
pdata->ptpclk_rate = XGBE_V2_PTP_CLOCK_FREQ;
/* Set the DMA coherency values */
pdata->coherent = 1;
pdata->arcr = XGBE_DMA_PCI_ARCR;
pdata->awcr = XGBE_DMA_PCI_AWCR;
pdata->awarcr = XGBE_DMA_PCI_AWARCR;
/* Set the maximum channels and queues */
reg = XP_IOREAD(pdata, XP_PROP_1);
pdata->tx_max_channel_count = XP_GET_BITS(reg, XP_PROP_1, MAX_TX_DMA);
pdata->rx_max_channel_count = XP_GET_BITS(reg, XP_PROP_1, MAX_RX_DMA);
pdata->tx_max_q_count = XP_GET_BITS(reg, XP_PROP_1, MAX_TX_QUEUES);
pdata->rx_max_q_count = XP_GET_BITS(reg, XP_PROP_1, MAX_RX_QUEUES);
if (netif_msg_probe(pdata)) {
dev_dbg(dev, "max tx/rx channel count = %u/%u\n",
pdata->tx_max_channel_count,
pdata->tx_max_channel_count);
dev_dbg(dev, "max tx/rx hw queue count = %u/%u\n",
pdata->tx_max_q_count, pdata->rx_max_q_count);
}
/* Set the hardware channel and queue counts */
xgbe_set_counts(pdata);
/* Set the maximum fifo amounts */
reg = XP_IOREAD(pdata, XP_PROP_2);
pdata->tx_max_fifo_size = XP_GET_BITS(reg, XP_PROP_2, TX_FIFO_SIZE);
pdata->tx_max_fifo_size *= 16384;
pdata->tx_max_fifo_size = min(pdata->tx_max_fifo_size,
pdata->vdata->tx_max_fifo_size);
pdata->rx_max_fifo_size = XP_GET_BITS(reg, XP_PROP_2, RX_FIFO_SIZE);
pdata->rx_max_fifo_size *= 16384;
pdata->rx_max_fifo_size = min(pdata->rx_max_fifo_size,
pdata->vdata->rx_max_fifo_size);
if (netif_msg_probe(pdata))
dev_dbg(dev, "max tx/rx max fifo size = %u/%u\n",
pdata->tx_max_fifo_size, pdata->rx_max_fifo_size);
/* Configure interrupt support */
ret = xgbe_config_irqs(pdata);
if (ret)
goto err_pci_enable;
/* Configure the netdev resource */
ret = xgbe_config_netdev(pdata);
if (ret)
goto err_irq_vectors;
netdev_notice(pdata->netdev, "net device enabled\n");
return 0;
err_irq_vectors:
pci_free_irq_vectors(pdata->pcidev);
err_pci_enable:
xgbe_free_pdata(pdata);
err_alloc:
dev_notice(dev, "net device not enabled\n");
return ret;
}
static int xgbe_probe(struct platform_device *pdev)
{
struct xgbe_prv_data *pdata;
struct net_device *netdev;
struct device *dev = &pdev->dev, *phy_dev;
struct platform_device *phy_pdev;
struct resource *res;
const char *phy_mode;
unsigned int i, phy_memnum, phy_irqnum;
enum dev_dma_attr attr;
int ret;
DBGPR("--> xgbe_probe\n");
netdev = alloc_etherdev_mq(sizeof(struct xgbe_prv_data),
XGBE_MAX_DMA_CHANNELS);
if (!netdev) {
dev_err(dev, "alloc_etherdev failed\n");
ret = -ENOMEM;
goto err_alloc;
}
SET_NETDEV_DEV(netdev, dev);
pdata = netdev_priv(netdev);
pdata->netdev = netdev;
pdata->pdev = pdev;
pdata->adev = ACPI_COMPANION(dev);
pdata->dev = dev;
platform_set_drvdata(pdev, netdev);
spin_lock_init(&pdata->lock);
spin_lock_init(&pdata->xpcs_lock);
mutex_init(&pdata->rss_mutex);
spin_lock_init(&pdata->tstamp_lock);
pdata->msg_enable = netif_msg_init(debug, default_msg_level);
set_bit(XGBE_DOWN, &pdata->dev_state);
/* Check if we should use ACPI or DT */
pdata->use_acpi = dev->of_node ? 0 : 1;
phy_pdev = xgbe_get_phy_pdev(pdata);
if (!phy_pdev) {
dev_err(dev, "unable to obtain phy device\n");
ret = -EINVAL;
goto err_phydev;
}
phy_dev = &phy_pdev->dev;
if (pdev == phy_pdev) {
/* New style device tree or ACPI:
* The XGBE and PHY resources are grouped together with
* the PHY resources listed last
*/
phy_memnum = xgbe_resource_count(pdev, IORESOURCE_MEM) - 3;
phy_irqnum = xgbe_resource_count(pdev, IORESOURCE_IRQ) - 1;
} else {
/* Old style device tree:
* The XGBE and PHY resources are separate
*/
phy_memnum = 0;
phy_irqnum = 0;
}
/* Set and validate the number of descriptors for a ring */
BUILD_BUG_ON_NOT_POWER_OF_2(XGBE_TX_DESC_CNT);
pdata->tx_desc_count = XGBE_TX_DESC_CNT;
if (pdata->tx_desc_count & (pdata->tx_desc_count - 1)) {
dev_err(dev, "tx descriptor count (%d) is not valid\n",
pdata->tx_desc_count);
ret = -EINVAL;
goto err_io;
}
BUILD_BUG_ON_NOT_POWER_OF_2(XGBE_RX_DESC_CNT);
pdata->rx_desc_count = XGBE_RX_DESC_CNT;
if (pdata->rx_desc_count & (pdata->rx_desc_count - 1)) {
dev_err(dev, "rx descriptor count (%d) is not valid\n",
pdata->rx_desc_count);
ret = -EINVAL;
goto err_io;
}
/* Obtain the mmio areas for the device */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pdata->xgmac_regs = devm_ioremap_resource(dev, res);
if (IS_ERR(pdata->xgmac_regs)) {
dev_err(dev, "xgmac ioremap failed\n");
ret = PTR_ERR(pdata->xgmac_regs);
goto err_io;
}
if (netif_msg_probe(pdata))
dev_dbg(dev, "xgmac_regs = %p\n", pdata->xgmac_regs);
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
pdata->xpcs_regs = devm_ioremap_resource(dev, res);
if (IS_ERR(pdata->xpcs_regs)) {
dev_err(dev, "xpcs ioremap failed\n");
ret = PTR_ERR(pdata->xpcs_regs);
goto err_io;
}
if (netif_msg_probe(pdata))
dev_dbg(dev, "xpcs_regs = %p\n", pdata->xpcs_regs);
res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++);
pdata->rxtx_regs = devm_ioremap_resource(dev, res);
if (IS_ERR(pdata->rxtx_regs)) {
dev_err(dev, "rxtx ioremap failed\n");
ret = PTR_ERR(pdata->rxtx_regs);
goto err_io;
}
if (netif_msg_probe(pdata))
dev_dbg(dev, "rxtx_regs = %p\n", pdata->rxtx_regs);
res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++);
pdata->sir0_regs = devm_ioremap_resource(dev, res);
if (IS_ERR(pdata->sir0_regs)) {
dev_err(dev, "sir0 ioremap failed\n");
ret = PTR_ERR(pdata->sir0_regs);
goto err_io;
}
if (netif_msg_probe(pdata))
dev_dbg(dev, "sir0_regs = %p\n", pdata->sir0_regs);
res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++);
pdata->sir1_regs = devm_ioremap_resource(dev, res);
if (IS_ERR(pdata->sir1_regs)) {
dev_err(dev, "sir1 ioremap failed\n");
ret = PTR_ERR(pdata->sir1_regs);
goto err_io;
}
if (netif_msg_probe(pdata))
dev_dbg(dev, "sir1_regs = %p\n", pdata->sir1_regs);
/* Retrieve the MAC address */
ret = device_property_read_u8_array(dev, XGBE_MAC_ADDR_PROPERTY,
pdata->mac_addr,
sizeof(pdata->mac_addr));
if (ret || !is_valid_ether_addr(pdata->mac_addr)) {
dev_err(dev, "invalid %s property\n", XGBE_MAC_ADDR_PROPERTY);
if (!ret)
ret = -EINVAL;
goto err_io;
}
/* Retrieve the PHY mode - it must be "xgmii" */
ret = device_property_read_string(dev, XGBE_PHY_MODE_PROPERTY,
&phy_mode);
if (ret || strcmp(phy_mode, phy_modes(PHY_INTERFACE_MODE_XGMII))) {
dev_err(dev, "invalid %s property\n", XGBE_PHY_MODE_PROPERTY);
if (!ret)
ret = -EINVAL;
goto err_io;
}
pdata->phy_mode = PHY_INTERFACE_MODE_XGMII;
/* Check for per channel interrupt support */
if (device_property_present(dev, XGBE_DMA_IRQS_PROPERTY))
pdata->per_channel_irq = 1;
/* Retrieve the PHY speedset */
ret = device_property_read_u32(phy_dev, XGBE_SPEEDSET_PROPERTY,
&pdata->speed_set);
if (ret) {
dev_err(dev, "invalid %s property\n", XGBE_SPEEDSET_PROPERTY);
goto err_io;
}
switch (pdata->speed_set) {
case XGBE_SPEEDSET_1000_10000:
case XGBE_SPEEDSET_2500_10000:
break;
default:
dev_err(dev, "invalid %s property\n", XGBE_SPEEDSET_PROPERTY);
ret = -EINVAL;
goto err_io;
}
/* Retrieve the PHY configuration properties */
if (device_property_present(phy_dev, XGBE_BLWC_PROPERTY)) {
ret = device_property_read_u32_array(phy_dev,
XGBE_BLWC_PROPERTY,
pdata->serdes_blwc,
XGBE_SPEEDS);
if (ret) {
dev_err(dev, "invalid %s property\n",
XGBE_BLWC_PROPERTY);
goto err_io;
}
} else {
memcpy(pdata->serdes_blwc, xgbe_serdes_blwc,
sizeof(pdata->serdes_blwc));
}
if (device_property_present(phy_dev, XGBE_CDR_RATE_PROPERTY)) {
ret = device_property_read_u32_array(phy_dev,
XGBE_CDR_RATE_PROPERTY,
pdata->serdes_cdr_rate,
XGBE_SPEEDS);
if (ret) {
dev_err(dev, "invalid %s property\n",
XGBE_CDR_RATE_PROPERTY);
goto err_io;
}
} else {
memcpy(pdata->serdes_cdr_rate, xgbe_serdes_cdr_rate,
sizeof(pdata->serdes_cdr_rate));
}
if (device_property_present(phy_dev, XGBE_PQ_SKEW_PROPERTY)) {
ret = device_property_read_u32_array(phy_dev,
XGBE_PQ_SKEW_PROPERTY,
pdata->serdes_pq_skew,
XGBE_SPEEDS);
if (ret) {
dev_err(dev, "invalid %s property\n",
XGBE_PQ_SKEW_PROPERTY);
goto err_io;
}
} else {
memcpy(pdata->serdes_pq_skew, xgbe_serdes_pq_skew,
sizeof(pdata->serdes_pq_skew));
}
if (device_property_present(phy_dev, XGBE_TX_AMP_PROPERTY)) {
ret = device_property_read_u32_array(phy_dev,
XGBE_TX_AMP_PROPERTY,
pdata->serdes_tx_amp,
XGBE_SPEEDS);
if (ret) {
dev_err(dev, "invalid %s property\n",
XGBE_TX_AMP_PROPERTY);
goto err_io;
}
} else {
memcpy(pdata->serdes_tx_amp, xgbe_serdes_tx_amp,
sizeof(pdata->serdes_tx_amp));
}
if (device_property_present(phy_dev, XGBE_DFE_CFG_PROPERTY)) {
ret = device_property_read_u32_array(phy_dev,
XGBE_DFE_CFG_PROPERTY,
pdata->serdes_dfe_tap_cfg,
XGBE_SPEEDS);
if (ret) {
dev_err(dev, "invalid %s property\n",
XGBE_DFE_CFG_PROPERTY);
goto err_io;
}
} else {
memcpy(pdata->serdes_dfe_tap_cfg, xgbe_serdes_dfe_tap_cfg,
sizeof(pdata->serdes_dfe_tap_cfg));
}
if (device_property_present(phy_dev, XGBE_DFE_ENA_PROPERTY)) {
ret = device_property_read_u32_array(phy_dev,
XGBE_DFE_ENA_PROPERTY,
pdata->serdes_dfe_tap_ena,
XGBE_SPEEDS);
if (ret) {
dev_err(dev, "invalid %s property\n",
XGBE_DFE_ENA_PROPERTY);
goto err_io;
}
} else {
memcpy(pdata->serdes_dfe_tap_ena, xgbe_serdes_dfe_tap_ena,
sizeof(pdata->serdes_dfe_tap_ena));
}
/* Obtain device settings unique to ACPI/OF */
if (pdata->use_acpi)
ret = xgbe_acpi_support(pdata);
else
ret = xgbe_of_support(pdata);
if (ret)
goto err_io;
/* Set the DMA coherency values */
attr = device_get_dma_attr(dev);
if (attr == DEV_DMA_NOT_SUPPORTED) {
dev_err(dev, "DMA is not supported");
goto err_io;
}
pdata->coherent = (attr == DEV_DMA_COHERENT);
if (pdata->coherent) {
pdata->axdomain = XGBE_DMA_OS_AXDOMAIN;
pdata->arcache = XGBE_DMA_OS_ARCACHE;
pdata->awcache = XGBE_DMA_OS_AWCACHE;
} else {
pdata->axdomain = XGBE_DMA_SYS_AXDOMAIN;
pdata->arcache = XGBE_DMA_SYS_ARCACHE;
pdata->awcache = XGBE_DMA_SYS_AWCACHE;
}
/* Get the device interrupt */
ret = platform_get_irq(pdev, 0);
if (ret < 0) {
dev_err(dev, "platform_get_irq 0 failed\n");
goto err_io;
}
pdata->dev_irq = ret;
/* Get the auto-negotiation interrupt */
ret = platform_get_irq(phy_pdev, phy_irqnum++);
if (ret < 0) {
dev_err(dev, "platform_get_irq phy 0 failed\n");
goto err_io;
}
pdata->an_irq = ret;
netdev->irq = pdata->dev_irq;
netdev->base_addr = (unsigned long)pdata->xgmac_regs;
memcpy(netdev->dev_addr, pdata->mac_addr, netdev->addr_len);
/* Set all the function pointers */
xgbe_init_all_fptrs(pdata);
/* Issue software reset to device */
pdata->hw_if.exit(pdata);
/* Populate the hardware features */
xgbe_get_all_hw_features(pdata);
/* Set default configuration data */
xgbe_default_config(pdata);
/* Set the DMA mask */
ret = dma_set_mask_and_coherent(dev,
DMA_BIT_MASK(pdata->hw_feat.dma_width));
if (ret) {
dev_err(dev, "dma_set_mask_and_coherent failed\n");
goto err_io;
}
/* Calculate the number of Tx and Rx rings to be created
* -Tx (DMA) Channels map 1-to-1 to Tx Queues so set
* the number of Tx queues to the number of Tx channels
* enabled
* -Rx (DMA) Channels do not map 1-to-1 so use the actual
* number of Rx queues
*/
pdata->tx_ring_count = min_t(unsigned int, num_online_cpus(),
pdata->hw_feat.tx_ch_cnt);
pdata->tx_q_count = pdata->tx_ring_count;
ret = netif_set_real_num_tx_queues(netdev, pdata->tx_ring_count);
if (ret) {
dev_err(dev, "error setting real tx queue count\n");
goto err_io;
}
pdata->rx_ring_count = min_t(unsigned int,
netif_get_num_default_rss_queues(),
pdata->hw_feat.rx_ch_cnt);
pdata->rx_q_count = pdata->hw_feat.rx_q_cnt;
ret = netif_set_real_num_rx_queues(netdev, pdata->rx_ring_count);
if (ret) {
dev_err(dev, "error setting real rx queue count\n");
goto err_io;
}
/* Initialize RSS hash key and lookup table */
netdev_rss_key_fill(pdata->rss_key, sizeof(pdata->rss_key));
for (i = 0; i < XGBE_RSS_MAX_TABLE_SIZE; i++)
XGMAC_SET_BITS(pdata->rss_table[i], MAC_RSSDR, DMCH,
i % pdata->rx_ring_count);
XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, IP2TE, 1);
XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1);
XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
/* Call MDIO/PHY initialization routine */
pdata->phy_if.phy_init(pdata);
/* Set device operations */
netdev->netdev_ops = xgbe_get_netdev_ops();
netdev->ethtool_ops = xgbe_get_ethtool_ops();
#ifdef CONFIG_AMD_XGBE_DCB
netdev->dcbnl_ops = xgbe_get_dcbnl_ops();
#endif
/* Set device features */
netdev->hw_features = NETIF_F_SG |
NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM |
NETIF_F_RXCSUM |
NETIF_F_TSO |
NETIF_F_TSO6 |
NETIF_F_GRO |
NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_VLAN_CTAG_TX |
NETIF_F_HW_VLAN_CTAG_FILTER;
if (pdata->hw_feat.rss)
netdev->hw_features |= NETIF_F_RXHASH;
netdev->vlan_features |= NETIF_F_SG |
NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM |
NETIF_F_TSO |
NETIF_F_TSO6;
netdev->features |= netdev->hw_features;
pdata->netdev_features = netdev->features;
netdev->priv_flags |= IFF_UNICAST_FLT;
/* Use default watchdog timeout */
netdev->watchdog_timeo = 0;
xgbe_init_rx_coalesce(pdata);
xgbe_init_tx_coalesce(pdata);
netif_carrier_off(netdev);
ret = register_netdev(netdev);
if (ret) {
dev_err(dev, "net device registration failed\n");
goto err_io;
}
/* Create the PHY/ANEG name based on netdev name */
snprintf(pdata->an_name, sizeof(pdata->an_name) - 1, "%s-pcs",
netdev_name(netdev));
/* Create workqueues */
pdata->dev_workqueue =
create_singlethread_workqueue(netdev_name(netdev));
if (!pdata->dev_workqueue) {
netdev_err(netdev, "device workqueue creation failed\n");
ret = -ENOMEM;
goto err_netdev;
}
pdata->an_workqueue =
create_singlethread_workqueue(pdata->an_name);
if (!pdata->an_workqueue) {
netdev_err(netdev, "phy workqueue creation failed\n");
ret = -ENOMEM;
goto err_wq;
}
xgbe_ptp_register(pdata);
xgbe_debugfs_init(pdata);
platform_device_put(phy_pdev);
netdev_notice(netdev, "net device enabled\n");
DBGPR("<-- xgbe_probe\n");
return 0;
err_wq:
destroy_workqueue(pdata->dev_workqueue);
err_netdev:
unregister_netdev(netdev);
err_io:
platform_device_put(phy_pdev);
err_phydev:
free_netdev(netdev);
err_alloc:
dev_notice(dev, "net device not enabled\n");
return ret;
}
static int __devinit cyrf6936_probe(struct spi_device *spi)
{
struct net_device *dev;
struct cyrf6936_net *p;
int ret;
dev = alloc_netdev(sizeof(*p), "cwu%d", cyrf6936_net_setup);
if (!dev) {
dev_err(&spi->dev, "failed to allocate device\n");
return -ENOMEM;
}
p = netdev_priv(dev);
mutex_init(&p->lock);
p->spi = spi;
p->netdev = dev;
p->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV);
INIT_WORK(&p->poll_work, cyrf6936_poll_work);
INIT_WORK(&p->tx_work, cyrf6936_tx_work);
SET_NETDEV_DEV(dev, &spi->dev);
spi_set_drvdata(spi, p);
/* initialize pre-made spi message */
p->spi_xfer.len = 2;
p->spi_xfer.bits_per_word = 16;
p->spi_xfer.rx_buf = &p->spi_rxbuf;
p->spi_xfer.tx_buf = &p->spi_txbuf;
spi_message_init(&p->spi_msg);
spi_message_add_tail(&p->spi_xfer, &p->spi_msg);
/* reset device */
cyrf6936_wreg(p, MODE_OVERRIDE, RST);
/* check if chip is connected */
if (cyrf6936_rreg(p, EOP_CTRL) != DEFVAL_EOP_CTRL) {
if (netif_msg_probe(p))
dev_err(&spi->dev, "chip not found\n");
ret = -ENODEV;
goto err_chk;
}
/* switch irq/poll mode */
if (spi->irq) {
p->netdev->irq = spi->irq;
ret = request_irq(spi->irq, cyrf6936_irq, 0, dev->name, p);
if (ret < 0) {
if (netif_msg_probe(p))
dev_err(&spi->dev, "request irq failed");
goto err_irq;
}
} else {
p->pollmode = 1;
init_timer(&p->poll_timer);
}
/* setup wireless extensions */
cyrf6936_iw_setup(p);
ret = register_netdev(dev);
if (ret) {
if (netif_msg_probe(p))
dev_err(&spi->dev, "register netdev error\n");
goto err_reg;
}
return 0;
err_reg:
free_irq(spi->irq, p);
err_chk:
err_irq:
free_netdev(dev);
return ret;
}
int
generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
{
int retval;
struct net_device *net = dev->net;
struct cdc_state *info = (void *) &dev->data;
union {
void *buf;
struct rndis_msg_hdr *header;
struct rndis_init *init;
struct rndis_init_c *init_c;
struct rndis_query *get;
struct rndis_query_c *get_c;
struct rndis_set *set;
struct rndis_set_c *set_c;
struct rndis_halt *halt;
} u;
u32 tmp;
__le32 phym_unspec, *phym;
int reply_len;
unsigned char *bp;
u.buf = kmalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
if (!u.buf)
return -ENOMEM;
retval = usbnet_generic_cdc_bind(dev, intf);
if (retval < 0)
goto fail;
u.init->msg_type = RNDIS_MSG_INIT;
u.init->msg_len = cpu_to_le32(sizeof *u.init);
u.init->major_version = cpu_to_le32(1);
u.init->minor_version = cpu_to_le32(0);
net->hard_header_len += sizeof (struct rndis_data_hdr);
dev->hard_mtu = net->mtu + net->hard_header_len;
dev->maxpacket = usb_maxpacket(dev->udev, dev->out, 1);
if (dev->maxpacket == 0) {
if (netif_msg_probe(dev))
dev_dbg(&intf->dev, "dev->maxpacket can't be 0\n");
retval = -EINVAL;
goto fail_and_release;
}
dev->rx_urb_size = dev->hard_mtu + (dev->maxpacket + 1);
dev->rx_urb_size &= ~(dev->maxpacket - 1);
u.init->max_transfer_size = cpu_to_le32(dev->rx_urb_size);
net->netdev_ops = &rndis_netdev_ops;
retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
if (unlikely(retval < 0)) {
dev_err(&intf->dev, "RNDIS init failed, %d\n", retval);
goto fail_and_release;
}
tmp = le32_to_cpu(u.init_c->max_transfer_size);
if (tmp < dev->hard_mtu) {
if (tmp <= net->hard_header_len) {
dev_err(&intf->dev,
"dev can't take %u byte packets (max %u)\n",
dev->hard_mtu, tmp);
retval = -EINVAL;
goto halt_fail_and_release;
}
dev_warn(&intf->dev,
"dev can't take %u byte packets (max %u), "
"adjusting MTU to %u\n",
dev->hard_mtu, tmp, tmp - net->hard_header_len);
dev->hard_mtu = tmp;
net->mtu = dev->hard_mtu - net->hard_header_len;
}
dev_dbg(&intf->dev,
"hard mtu %u (%u from dev), rx buflen %Zu, align %d\n",
dev->hard_mtu, tmp, dev->rx_urb_size,
1 << le32_to_cpu(u.init_c->packet_alignment));
if (dev->driver_info->early_init &&
dev->driver_info->early_init(dev) != 0)
goto halt_fail_and_release;
phym = NULL;
reply_len = sizeof *phym;
retval = rndis_query(dev, intf, u.buf, OID_GEN_PHYSICAL_MEDIUM,
0, (void **) &phym, &reply_len);
if (retval != 0 || !phym) {
phym_unspec = RNDIS_PHYSICAL_MEDIUM_UNSPECIFIED;
phym = &phym_unspec;
}
if ((flags & FLAG_RNDIS_PHYM_WIRELESS) &&
*phym != RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN) {
if (netif_msg_probe(dev))
dev_dbg(&intf->dev, "driver requires wireless "
"physical medium, but device is not.\n");
retval = -ENODEV;
goto halt_fail_and_release;
}
if ((flags & FLAG_RNDIS_PHYM_NOT_WIRELESS) &&
*phym == RNDIS_PHYSICAL_MEDIUM_WIRELESS_LAN) {
if (netif_msg_probe(dev))
dev_dbg(&intf->dev, "driver requires non-wireless "
"physical medium, but device is wireless.\n");
retval = -ENODEV;
goto halt_fail_and_release;
}
reply_len = ETH_ALEN;
retval = rndis_query(dev, intf, u.buf, OID_802_3_PERMANENT_ADDRESS,
48, (void **) &bp, &reply_len);
if (unlikely(retval< 0)) {
dev_err(&intf->dev, "rndis get ethaddr, %d\n", retval);
goto halt_fail_and_release;
}
memcpy(net->dev_addr, bp, ETH_ALEN);
memcpy(net->perm_addr, bp, ETH_ALEN);
memset(u.set, 0, sizeof *u.set);
u.set->msg_type = RNDIS_MSG_SET;
u.set->msg_len = cpu_to_le32(4 + sizeof *u.set);
u.set->oid = OID_GEN_CURRENT_PACKET_FILTER;
u.set->len = cpu_to_le32(4);
u.set->offset = cpu_to_le32((sizeof *u.set) - 8);
*(__le32 *)(u.buf + sizeof *u.set) = RNDIS_DEFAULT_FILTER;
retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
if (unlikely(retval < 0)) {
dev_err(&intf->dev, "rndis set packet filter, %d\n", retval);
goto halt_fail_and_release;
}
retval = 0;
kfree(u.buf);
return retval;
halt_fail_and_release:
memset(u.halt, 0, sizeof *u.halt);
u.halt->msg_type = RNDIS_MSG_HALT;
u.halt->msg_len = cpu_to_le32(sizeof *u.halt);
(void) rndis_command(dev, (void *)u.halt, CONTROL_BUFFER_SIZE);
fail_and_release:
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver_of(intf), info->data);
info->data = NULL;
fail:
kfree(u.buf);
return retval;
}
static int netvsc_probe(struct hv_device *dev,
const struct hv_vmbus_device_id *dev_id)
{
struct net_device *net = NULL;
struct net_device_context *net_device_ctx;
struct netvsc_device_info device_info;
struct netvsc_device *nvdev;
int ret;
net = alloc_etherdev(sizeof(struct net_device_context));
if (!net)
return -ENOMEM;
netif_carrier_off(net);
net_device_ctx = netdev_priv(net);
net_device_ctx->device_ctx = dev;
net_device_ctx->msg_enable = netif_msg_init(debug, default_msg);
if (netif_msg_probe(net_device_ctx))
netdev_dbg(net, "netvsc msg_enable: %d\n",
net_device_ctx->msg_enable);
hv_set_drvdata(dev, net);
INIT_DELAYED_WORK(&net_device_ctx->dwork, netvsc_link_change);
INIT_WORK(&net_device_ctx->work, do_set_multicast,
(void *)&net_device_ctx->work);
#if defined(RHEL_RELEASE_VERSION) && (RHEL_RELEASE_CODE > 1291)
net->netdev_ops = &device_ops;
#else
net->open = netvsc_open;
net->hard_start_xmit = netvsc_start_xmit;
net->stop = netvsc_close;
net->get_stats = netvsc_get_stats;
net->set_multicast_list = netvsc_set_multicast_list;
net->change_mtu = netvsc_change_mtu;
#endif
#if defined(RHEL_RELEASE_VERSION) && (RHEL_RELEASE_CODE > 1291)
net->hw_features = NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_IP_CSUM |
NETIF_F_TSO;
#endif
net->features = NETIF_F_HW_VLAN_TX | NETIF_F_SG | NETIF_F_RXCSUM |
NETIF_F_IP_CSUM | NETIF_F_TSO;
net->ethtool_ops = ðtool_ops;
SET_NETDEV_DEV(net, &dev->device);
/* Notify the netvsc driver of the new device */
device_info.ring_size = ring_size;
ret = rndis_filter_device_add(dev, &device_info);
if (ret != 0) {
netdev_err(net, "unable to add netvsc device (ret %d)\n", ret);
free_netdev(net);
hv_set_drvdata(dev, NULL);
return ret;
}
memcpy(net->dev_addr, device_info.mac_adr, ETH_ALEN);
nvdev = hv_get_drvdata(dev);
#ifdef NOTYET
netif_set_real_num_tx_queues(net, nvdev->num_chn);
netif_set_real_num_rx_queues(net, nvdev->num_chn);
dev_info(&dev->device, "real num tx,rx queues:%u, %u\n",
net->real_num_tx_queues, nvdev->num_chn);
#endif
ret = register_netdev(net);
if (ret != 0) {
pr_err("Unable to register netdev.\n");
rndis_filter_device_remove(dev);
free_netdev(net);
} else {
schedule_delayed_work(&net_device_ctx->dwork.work, 0);
}
return ret;
}
static int rndis_bind(struct usbnet *dev, struct usb_interface *intf)
{
int retval;
struct net_device *net = dev->net;
struct cdc_state *info = (void *) &dev->data;
union {
void *buf;
struct rndis_msg_hdr *header;
struct rndis_init *init;
struct rndis_init_c *init_c;
struct rndis_query *get;
struct rndis_query_c *get_c;
struct rndis_set *set;
struct rndis_set_c *set_c;
} u;
u32 tmp;
int reply_len;
unsigned char *bp;
/* we can't rely on i/o from stack working, or stack allocation */
u.buf = kmalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
if (!u.buf)
return -ENOMEM;
retval = usbnet_generic_cdc_bind(dev, intf);
if (retval < 0)
goto fail;
u.init->msg_type = RNDIS_MSG_INIT;
u.init->msg_len = ccpu2(sizeof *u.init);
u.init->major_version = ccpu2(1);
u.init->minor_version = ccpu2(0);
/* max transfer (in spec) is 0x4000 at full speed, but for
* TX we'll stick to one Ethernet packet plus RNDIS framing.
* For RX we handle drivers that zero-pad to end-of-packet.
* Don't let userspace change these settings.
*
* NOTE: there still seems to be wierdness here, as if we need
* to do some more things to make sure WinCE targets accept this.
* They default to jumbograms of 8KB or 16KB, which is absurd
* for such low data rates and which is also more than Linux
* can usually expect to allocate for SKB data...
*/
net->hard_header_len += sizeof (struct rndis_data_hdr);
dev->hard_mtu = net->mtu + net->hard_header_len;
dev->maxpacket = usb_maxpacket(dev->udev, dev->out, 1);
if (dev->maxpacket == 0) {
if (netif_msg_probe(dev))
dev_dbg(&intf->dev, "dev->maxpacket can't be 0\n");
retval = -EINVAL;
goto fail_and_release;
}
dev->rx_urb_size = dev->hard_mtu + (dev->maxpacket + 1);
dev->rx_urb_size &= ~(dev->maxpacket - 1);
u.init->max_transfer_size = cpu_to_le32(dev->rx_urb_size);
net->change_mtu = NULL;
retval = rndis_command(dev, u.header);
if (unlikely(retval < 0)) {
/* it might not even be an RNDIS device!! */
dev_err(&intf->dev, "RNDIS init failed, %d\n", retval);
goto fail_and_release;
}
tmp = le32_to_cpu(u.init_c->max_transfer_size);
if (tmp < dev->hard_mtu) {
dev_err(&intf->dev,
"dev can't take %u byte packets (max %u)\n",
dev->hard_mtu, tmp);
retval = -EINVAL;
goto fail_and_release;
}
/* REVISIT: peripheral "alignment" request is ignored ... */
dev_dbg(&intf->dev,
"hard mtu %u (%u from dev), rx buflen %Zu, align %d\n",
dev->hard_mtu, tmp, dev->rx_urb_size,
1 << le32_to_cpu(u.init_c->packet_alignment));
/* Get designated host ethernet address */
reply_len = ETH_ALEN;
retval = rndis_query(dev, intf, u.buf, OID_802_3_PERMANENT_ADDRESS,
48, (void **) &bp, &reply_len);
if (unlikely(retval< 0)) {
dev_err(&intf->dev, "rndis get ethaddr, %d\n", retval);
goto fail_and_release;
}
memcpy(net->dev_addr, bp, ETH_ALEN);
/* set a nonzero filter to enable data transfers */
memset(u.set, 0, sizeof *u.set);
u.set->msg_type = RNDIS_MSG_SET;
u.set->msg_len = ccpu2(4 + sizeof *u.set);
u.set->oid = OID_GEN_CURRENT_PACKET_FILTER;
u.set->len = ccpu2(4);
u.set->offset = ccpu2((sizeof *u.set) - 8);
*(__le32 *)(u.buf + sizeof *u.set) = ccpu2(DEFAULT_FILTER);
retval = rndis_command(dev, u.header);
if (unlikely(retval < 0)) {
dev_err(&intf->dev, "rndis set packet filter, %d\n", retval);
goto fail_and_release;
}
retval = 0;
kfree(u.buf);
return retval;
fail_and_release:
usb_set_intfdata(info->data, NULL);
usb_driver_release_interface(driver_of(intf), info->data);
info->data = NULL;
fail:
kfree(u.buf);
return retval;
}
static int netvsc_probe(struct hv_device *dev,
const struct hv_vmbus_device_id *dev_id)
{
struct net_device *net = NULL;
struct net_device_context *net_device_ctx;
struct netvsc_device_info device_info;
struct netvsc_device *nvdev;
int ret;
u32 max_needed_headroom;
net = alloc_etherdev_mq(sizeof(struct net_device_context),
num_online_cpus());
if (!net)
return -ENOMEM;
max_needed_headroom = sizeof(struct hv_netvsc_packet) +
RNDIS_AND_PPI_SIZE;
netif_carrier_off(net);
net_device_ctx = netdev_priv(net);
net_device_ctx->device_ctx = dev;
net_device_ctx->msg_enable = netif_msg_init(debug, default_msg);
if (netif_msg_probe(net_device_ctx))
netdev_dbg(net, "netvsc msg_enable: %d\n",
net_device_ctx->msg_enable);
net_device_ctx->tx_stats = netdev_alloc_pcpu_stats(struct netvsc_stats);
if (!net_device_ctx->tx_stats) {
free_netdev(net);
return -ENOMEM;
}
net_device_ctx->rx_stats = netdev_alloc_pcpu_stats(struct netvsc_stats);
if (!net_device_ctx->rx_stats) {
free_percpu(net_device_ctx->tx_stats);
free_netdev(net);
return -ENOMEM;
}
hv_set_drvdata(dev, net);
INIT_DELAYED_WORK(&net_device_ctx->dwork, netvsc_link_change);
INIT_WORK(&net_device_ctx->work, do_set_multicast);
net->netdev_ops = &device_ops;
net->hw_features = NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_IP_CSUM |
NETIF_F_TSO;
net->features = NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_SG | NETIF_F_RXCSUM |
NETIF_F_IP_CSUM | NETIF_F_TSO;
net->ethtool_ops = ðtool_ops;
SET_NETDEV_DEV(net, &dev->device);
/*
* Request additional head room in the skb.
* We will use this space to build the rndis
* heaser and other state we need to maintain.
*/
net->needed_headroom = max_needed_headroom;
/* Notify the netvsc driver of the new device */
device_info.ring_size = ring_size;
device_info.max_num_vrss_chns = max_num_vrss_chns;
ret = rndis_filter_device_add(dev, &device_info);
if (ret != 0) {
netdev_err(net, "unable to add netvsc device (ret %d)\n", ret);
netvsc_free_netdev(net);
hv_set_drvdata(dev, NULL);
return ret;
}
memcpy(net->dev_addr, device_info.mac_adr, ETH_ALEN);
nvdev = hv_get_drvdata(dev);
netif_set_real_num_tx_queues(net, nvdev->num_chn);
netif_set_real_num_rx_queues(net, nvdev->num_chn);
ret = register_netdev(net);
if (ret != 0) {
pr_err("Unable to register netdev.\n");
rndis_filter_device_remove(dev);
netvsc_free_netdev(net);
} else {
schedule_delayed_work(&net_device_ctx->dwork, 0);
}
return ret;
}
