/**
* stmmac_probe - Initialization of the adapter .
* @dev : device pointer
* Description: The function initializes the network device structure for
* the STMMAC driver. It also calls the low level routines
* in order to init the HW (i.e. the DMA engine)
*/
static int stmmac_probe(struct net_device *dev)
{
int ret = 0;
struct stmmac_priv *priv = netdev_priv(dev);
ether_setup(dev);
dev->netdev_ops = &stmmac_netdev_ops;
stmmac_set_ethtool_ops(dev);
dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
dev->features |= dev->hw_features | NETIF_F_HIGHDMA;
dev->watchdog_timeo = msecs_to_jiffies(watchdog);
#ifdef STMMAC_VLAN_TAG_USED
/* Both mac100 and gmac support receive VLAN tag detection */
dev->features |= NETIF_F_HW_VLAN_RX;
#endif
priv->msg_enable = netif_msg_init(debug, default_msg_level);
if (flow_ctrl)
priv->flow_ctrl = FLOW_AUTO; /* RX/TX pause on */
priv->pause = pause;
netif_napi_add(dev, &priv->napi, stmmac_poll, 64);
/* Get the MAC address */
priv->hw->mac->get_umac_addr((void __iomem *) dev->base_addr,
dev->dev_addr, 0);
if (!is_valid_ether_addr(dev->dev_addr))
pr_warning("\tno valid MAC address;"
"please, use ifconfig or nwhwconfig!\n");
spin_lock_init(&priv->lock);
ret = register_netdev(dev);
if (ret) {
pr_err("%s: ERROR %i registering the device\n",
__func__, ret);
return -ENODEV;
}
DBG(probe, DEBUG, "%s: Scatter/Gather: %s - HW checksums: %s\n",
dev->name, (dev->features & NETIF_F_SG) ? "on" : "off",
(dev->features & NETIF_F_IP_CSUM) ? "on" : "off");
return ret;
}
static struct net_device *c2_devinit(struct c2_dev *c2dev,
void __iomem * mmio_addr)
{
struct c2_port *c2_port = NULL;
struct net_device *netdev = alloc_etherdev(sizeof(*c2_port));
if (!netdev) {
pr_debug("c2_port etherdev alloc failed");
return NULL;
}
SET_NETDEV_DEV(netdev, &c2dev->pcidev->dev);
netdev->netdev_ops = &c2_netdev;
netdev->watchdog_timeo = C2_TX_TIMEOUT;
netdev->irq = c2dev->pcidev->irq;
c2_port = netdev_priv(netdev);
c2_port->netdev = netdev;
c2_port->c2dev = c2dev;
c2_port->msg_enable = netif_msg_init(debug, default_msg);
c2_port->tx_ring.count = C2_NUM_TX_DESC;
c2_port->rx_ring.count = C2_NUM_RX_DESC;
spin_lock_init(&c2_port->tx_lock);
memcpy_fromio(netdev->dev_addr, mmio_addr + C2_REGS_ENADDR, 6);
if (!is_valid_ether_addr(netdev->dev_addr)) {
pr_debug("Invalid MAC Address\n");
c2_print_macaddr(netdev);
free_netdev(netdev);
return NULL;
}
c2dev->netdev = netdev;
return netdev;
}
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));
if (!net) {
dbg ("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);
skb_queue_head_init(&dev->rxq_pause);
dev->bh.func = usbnet_bh;
dev->bh.data = (unsigned long) dev;
INIT_WORK (&dev->kevent, kevent);
init_usb_anchor(&dev->deferred);
dev->delay.function = usbnet_bh;
dev->delay.data = (unsigned long) dev;
init_timer (&dev->delay);
mutex_init (&dev->phy_mutex);
dev->net = net;
strcpy (net->name, "usb%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_BIT_MASK(64)))
net->features |= NETIF_F_HIGHDMA;
#endif
net->netdev_ops = &usbnet_netdev_ops;
net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
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, "eth%d");
/* WLAN devices should always be named "wlan%d" */
if ((dev->driver_info->flags & FLAG_WLAN) != 0)
strcpy(net->name, "wlan%d");
/* WWAN devices should always be named "wwan%d" */
if ((dev->driver_info->flags & FLAG_WWAN) != 0)
strcpy(net->name, "wwan%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);
if ((dev->driver_info->flags & FLAG_WLAN) != 0)
SET_NETDEV_DEVTYPE(net, &wlan_type);
if ((dev->driver_info->flags & FLAG_WWAN) != 0)
SET_NETDEV_DEVTYPE(net, &wwan_type);
status = register_netdev (net);
if (status)
goto out3;
netif_info(dev, probe, dev->net,
"register '%s' at usb-%s-%s, %s, %pM\n",
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);
netif_device_attach (net);
if (dev->driver_info->flags & FLAG_LINK_INTR)
netif_carrier_off(net);
return 0;
out3:
if (info->unbind)
info->unbind (dev, udev);
out1:
free_netdev(net);
out:
usb_put_dev(xdev);
return status;
}
/* Search EMAC board, allocate space and register it
*/
static int emac_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct emac_board_info *db;
struct net_device *ndev;
int ret = 0;
const char *mac_addr;
ndev = alloc_etherdev(sizeof(struct emac_board_info));
if (!ndev) {
dev_err(&pdev->dev, "could not allocate device.\n");
return -ENOMEM;
}
SET_NETDEV_DEV(ndev, &pdev->dev);
db = netdev_priv(ndev);
memset(db, 0, sizeof(*db));
db->dev = &pdev->dev;
db->ndev = ndev;
db->pdev = pdev;
db->msg_enable = netif_msg_init(debug, EMAC_DEFAULT_MSG_ENABLE);
spin_lock_init(&db->lock);
db->membase = of_iomap(np, 0);
if (!db->membase) {
dev_err(&pdev->dev, "failed to remap registers\n");
ret = -ENOMEM;
goto out;
}
/* fill in parameters for net-dev structure */
ndev->base_addr = (unsigned long)db->membase;
ndev->irq = irq_of_parse_and_map(np, 0);
if (ndev->irq == -ENXIO) {
netdev_err(ndev, "No irq resource\n");
ret = ndev->irq;
goto out_iounmap;
}
db->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(db->clk)) {
ret = PTR_ERR(db->clk);
goto out_iounmap;
}
ret = clk_prepare_enable(db->clk);
if (ret) {
dev_err(&pdev->dev, "Error couldn't enable clock (%d)\n", ret);
goto out_iounmap;
}
ret = sunxi_sram_claim(&pdev->dev);
if (ret) {
dev_err(&pdev->dev, "Error couldn't map SRAM to device\n");
goto out_clk_disable_unprepare;
}
db->phy_node = of_parse_phandle(np, "phy", 0);
if (!db->phy_node) {
dev_err(&pdev->dev, "no associated PHY\n");
ret = -ENODEV;
goto out_release_sram;
}
/* Read MAC-address from DT */
mac_addr = of_get_mac_address(np);
if (mac_addr)
memcpy(ndev->dev_addr, mac_addr, ETH_ALEN);
/* Check if the MAC address is valid, if not get a random one */
if (!is_valid_ether_addr(ndev->dev_addr)) {
eth_hw_addr_random(ndev);
dev_warn(&pdev->dev, "using random MAC address %pM\n",
ndev->dev_addr);
}
db->emacrx_completed_flag = 1;
emac_powerup(ndev);
emac_reset(db);
ndev->netdev_ops = &emac_netdev_ops;
ndev->watchdog_timeo = msecs_to_jiffies(watchdog);
ndev->ethtool_ops = &emac_ethtool_ops;
platform_set_drvdata(pdev, ndev);
/* Carrier starts down, phylib will bring it up */
netif_carrier_off(ndev);
ret = register_netdev(ndev);
if (ret) {
dev_err(&pdev->dev, "Registering netdev failed!\n");
ret = -ENODEV;
goto out_release_sram;
}
dev_info(&pdev->dev, "%s: at %p, IRQ %d MAC: %pM\n",
ndev->name, db->membase, ndev->irq, ndev->dev_addr);
return 0;
out_release_sram:
sunxi_sram_release(&pdev->dev);
out_clk_disable_unprepare:
clk_disable_unprepare(db->clk);
out_iounmap:
iounmap(db->membase);
out:
dev_err(db->dev, "not found (%d).\n", ret);
free_netdev(ndev);
return ret;
}
static int __init ag71xx_probe(struct platform_device *pdev)
{
struct net_device *dev;
struct resource *res;
struct ag71xx *ag;
struct ag71xx_platform_data *pdata;
int err;
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "no platform data specified\n");
err = -ENXIO;
goto err_out;
}
dev = alloc_etherdev(sizeof(*ag));
if (!dev) {
dev_err(&pdev->dev, "alloc_etherdev failed\n");
err = -ENOMEM;
goto err_out;
}
SET_NETDEV_DEV(dev, &pdev->dev);
ag = netdev_priv(dev);
ag->pdev = pdev;
ag->dev = dev;
ag->mii_bus = ag71xx_mdio_bus->mii_bus;
ag->msg_enable = netif_msg_init(ag71xx_debug,
AG71XX_DEFAULT_MSG_ENABLE);
spin_lock_init(&ag->lock);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base");
if (!res) {
dev_err(&pdev->dev, "no mac_base resource found\n");
err = -ENXIO;
goto err_out;
}
ag->mac_base = ioremap_nocache(res->start, res->end - res->start + 1);
if (!ag->mac_base) {
dev_err(&pdev->dev, "unable to ioremap mac_base\n");
err = -ENOMEM;
goto err_free_dev;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base2");
if (!res) {
dev_err(&pdev->dev, "no mac_base2 resource found\n");
err = -ENXIO;
goto err_unmap_base1;
}
ag->mac_base2 = ioremap_nocache(res->start, res->end - res->start + 1);
if (!ag->mac_base) {
dev_err(&pdev->dev, "unable to ioremap mac_base2\n");
err = -ENOMEM;
goto err_unmap_base1;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mii_ctrl");
if (!res) {
dev_err(&pdev->dev, "no mii_ctrl resource found\n");
err = -ENXIO;
goto err_unmap_base2;
}
ag->mii_ctrl = ioremap_nocache(res->start, res->end - res->start + 1);
if (!ag->mii_ctrl) {
dev_err(&pdev->dev, "unable to ioremap mii_ctrl\n");
err = -ENOMEM;
goto err_unmap_base2;
}
dev->irq = platform_get_irq(pdev, 0);
err = request_irq(dev->irq, ag71xx_interrupt,
IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
dev->name, dev);
if (err) {
dev_err(&pdev->dev, "unable to request IRQ %d\n", dev->irq);
goto err_unmap_mii_ctrl;
}
dev->base_addr = (unsigned long)ag->mac_base;
dev->open = ag71xx_open;
dev->stop = ag71xx_stop;
dev->hard_start_xmit = ag71xx_hard_start_xmit;
dev->set_multicast_list = ag71xx_set_multicast_list;
dev->do_ioctl = ag71xx_do_ioctl;
dev->ethtool_ops = &ag71xx_ethtool_ops;
dev->tx_timeout = ag71xx_tx_timeout;
INIT_WORK(&ag->restart_work, ag71xx_restart_work_func);
init_timer(&ag->oom_timer);
ag->oom_timer.data = (unsigned long) dev;
ag->oom_timer.function = ag71xx_oom_timer_handler;
memcpy(dev->dev_addr, pdata->mac_addr, ETH_ALEN);
netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
err = register_netdev(dev);
if (err) {
dev_err(&pdev->dev, "unable to register net device\n");
goto err_free_irq;
}
printk(KERN_INFO "%s: Atheros AG71xx at 0x%08lx, irq %d\n",
dev->name, dev->base_addr, dev->irq);
ag71xx_dump_regs(ag);
ag71xx_hw_init(ag);
ag71xx_dump_regs(ag);
/* Reset the mdio bus explicitly */
if (ag->mii_bus) {
mutex_lock(&ag->mii_bus->mdio_lock);
ag->mii_bus->reset(ag->mii_bus);
mutex_unlock(&ag->mii_bus->mdio_lock);
}
err = ag71xx_phy_connect(ag);
if (err)
goto err_unregister_netdev;
platform_set_drvdata(pdev, dev);
return 0;
err_unregister_netdev:
unregister_netdev(dev);
err_free_irq:
free_irq(dev->irq, dev);
err_unmap_mii_ctrl:
iounmap(ag->mii_ctrl);
err_unmap_base2:
iounmap(ag->mac_base2);
err_unmap_base1:
iounmap(ag->mac_base);
err_free_dev:
kfree(dev);
err_out:
platform_set_drvdata(pdev, NULL);
return err;
}
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 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;
}
static int __devinit cpsw_probe(struct platform_device *pdev)
{
struct cpsw_platform_data *data = pdev->dev.platform_data;
struct net_device *ndev;
struct cpsw_priv *priv;
struct cpdma_params dma_params;
struct cpsw_ale_params ale_params;
void __iomem *regs;
struct resource *res;
int ret = 0, i, k = 0;
if (!data) {
pr_err("platform data missing\n");
return -ENODEV;
}
ndev = alloc_etherdev(sizeof(struct cpsw_priv));
if (!ndev) {
pr_err("error allocating net_device\n");
return -ENOMEM;
}
platform_set_drvdata(pdev, ndev);
priv = netdev_priv(ndev);
spin_lock_init(&priv->lock);
priv->data = *data;
priv->pdev = pdev;
priv->ndev = ndev;
priv->dev = &ndev->dev;
priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG);
priv->rx_packet_max = max(rx_packet_max, 128);
if (is_valid_ether_addr(data->slave_data[0].mac_addr)) {
memcpy(priv->mac_addr, data->slave_data[0].mac_addr, ETH_ALEN);
pr_info("Detected MACID = %pM", priv->mac_addr);
} else {
random_ether_addr(priv->mac_addr);
pr_info("Random MACID = %pM", priv->mac_addr);
}
memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN);
priv->slaves = kzalloc(sizeof(struct cpsw_slave) * data->slaves,
GFP_KERNEL);
if (!priv->slaves) {
ret = -EBUSY;
goto clean_ndev_ret;
}
for (i = 0; i < data->slaves; i++)
priv->slaves[i].slave_num = i;
priv->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(priv->clk)) {
dev_err(priv->dev, "failed to get device clock)\n");
ret = -EBUSY;
}
priv->cpsw_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!priv->cpsw_res) {
dev_err(priv->dev, "error getting i/o resource\n");
ret = -ENOENT;
goto clean_clk_ret;
}
if (!request_mem_region(priv->cpsw_res->start,
resource_size(priv->cpsw_res), ndev->name)) {
dev_err(priv->dev, "failed request i/o region\n");
ret = -ENXIO;
goto clean_clk_ret;
}
regs = ioremap(priv->cpsw_res->start, resource_size(priv->cpsw_res));
if (!regs) {
dev_err(priv->dev, "unable to map i/o region\n");
goto clean_cpsw_iores_ret;
}
priv->regs = regs;
priv->host_port = data->host_port_num;
priv->host_port_regs = regs + data->host_port_reg_ofs;
priv->cpsw_ss_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!priv->cpsw_ss_res) {
dev_err(priv->dev, "error getting i/o resource\n");
ret = -ENOENT;
goto clean_clk_ret;
}
if (!request_mem_region(priv->cpsw_ss_res->start,
resource_size(priv->cpsw_ss_res), ndev->name)) {
dev_err(priv->dev, "failed request i/o region\n");
ret = -ENXIO;
goto clean_clk_ret;
}
regs = ioremap(priv->cpsw_ss_res->start,
resource_size(priv->cpsw_ss_res));
if (!regs) {
dev_err(priv->dev, "unable to map i/o region\n");
goto clean_cpsw_ss_iores_ret;
}
priv->ss_regs = regs;
for_each_slave(priv, cpsw_slave_init, priv);
memset(&dma_params, 0, sizeof(dma_params));
dma_params.dev = &pdev->dev;
dma_params.dmaregs = cpsw_dma_regs((u32)priv->regs,
data->cpdma_reg_ofs);
dma_params.rxthresh = cpsw_dma_rxthresh((u32)priv->regs,
data->cpdma_reg_ofs);
dma_params.rxfree = cpsw_dma_rxfree((u32)priv->regs,
data->cpdma_reg_ofs);
dma_params.txhdp = cpsw_dma_txhdp((u32)priv->regs,
data->cpdma_sram_ofs);
dma_params.rxhdp = cpsw_dma_rxhdp((u32)priv->regs,
data->cpdma_sram_ofs);
dma_params.txcp = cpsw_dma_txcp((u32)priv->regs,
data->cpdma_sram_ofs);
dma_params.rxcp = cpsw_dma_rxcp((u32)priv->regs,
data->cpdma_sram_ofs);
dma_params.num_chan = data->channels;
dma_params.has_soft_reset = true;
dma_params.min_packet_size = CPSW_MIN_PACKET_SIZE;
dma_params.desc_mem_size = data->bd_ram_size;
dma_params.desc_align = 16;
dma_params.has_ext_regs = true;
dma_params.desc_mem_phys = data->no_bd_ram ? 0 :
(u32 __force)priv->cpsw_res->start + data->bd_ram_ofs;
dma_params.desc_hw_addr = data->hw_ram_addr ?
data->hw_ram_addr : dma_params.desc_mem_phys ;
priv->dma = cpdma_ctlr_create(&dma_params);
if (!priv->dma) {
dev_err(priv->dev, "error initializing dma\n");
ret = -ENOMEM;
goto clean_iomap_ret;
}
priv->txch = cpdma_chan_create(priv->dma, tx_chan_num(0),
cpsw_tx_handler);
priv->rxch = cpdma_chan_create(priv->dma, rx_chan_num(0),
cpsw_rx_handler);
if (WARN_ON(!priv->txch || !priv->rxch)) {
dev_err(priv->dev, "error initializing dma channels\n");
ret = -ENOMEM;
goto clean_dma_ret;
}
memset(&ale_params, 0, sizeof(ale_params));
ale_params.dev = &ndev->dev;
ale_params.ale_regs = (void *)((u32)priv->regs) +
((u32)data->ale_reg_ofs);
ale_params.ale_ageout = ale_ageout;
ale_params.ale_entries = data->ale_entries;
ale_params.ale_ports = data->slaves;
priv->ale = cpsw_ale_create(&ale_params);
if (!priv->ale) {
dev_err(priv->dev, "error initializing ale engine\n");
ret = -ENODEV;
goto clean_dma_ret;
}
ndev->irq = platform_get_irq(pdev, 0);
if (ndev->irq < 0) {
dev_err(priv->dev, "error getting irq resource\n");
ret = -ENOENT;
goto clean_ale_ret;
}
while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, k))) {
for (i = res->start; i <= res->end; i++) {
if (request_irq(i, cpsw_interrupt, IRQF_DISABLED,
dev_name(&pdev->dev), priv)) {
dev_err(priv->dev, "error attaching irq\n");
goto clean_ale_ret;
}
priv->irqs_table[k] = i;
priv->num_irqs = k;
}
k++;
}
ndev->flags |= IFF_ALLMULTI; /* */
ndev->netdev_ops = &cpsw_netdev_ops;
SET_ETHTOOL_OPS(ndev, &cpsw_ethtool_ops);
netif_napi_add(ndev, &priv->napi, cpsw_poll, CPSW_POLL_WEIGHT);
/* */
SET_NETDEV_DEV(ndev, &pdev->dev);
ret = register_netdev(ndev);
if (ret) {
dev_err(priv->dev, "error registering net device\n");
ret = -ENODEV;
goto clean_irq_ret;
}
cpsw_notice(priv, probe, "initialized device (regs %x, irq %d)\n",
priv->cpsw_res->start, ndev->irq);
return 0;
clean_irq_ret:
free_irq(ndev->irq, priv);
clean_ale_ret:
cpsw_ale_destroy(priv->ale);
clean_dma_ret:
cpdma_chan_destroy(priv->txch);
cpdma_chan_destroy(priv->rxch);
cpdma_ctlr_destroy(priv->dma);
clean_iomap_ret:
iounmap(priv->regs);
clean_cpsw_ss_iores_ret:
release_mem_region(priv->cpsw_ss_res->start,
resource_size(priv->cpsw_ss_res));
clean_cpsw_iores_ret:
release_mem_region(priv->cpsw_res->start,
resource_size(priv->cpsw_res));
clean_clk_ret:
clk_put(priv->clk);
kfree(priv->slaves);
clean_ndev_ret:
free_netdev(ndev);
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;
}
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;
}
int adapter_probe(struct sdio_func *func, const struct sdio_device_id *id)
{
struct net_adapter *adapter;
struct net_device *net;
u_char charName[32];
int nRes = -ENOMEM;
u_long idx = 0;
struct wimax732_platform_data *pdata;
dump_debug("Probe!!!!!!!!!");
pdata = (struct wimax732_platform_data *) id->driver_data;
net = alloc_etherdev(sizeof(struct net_adapter));
if (!net) {
dump_debug("adapter_probe: "
"error can't allocate device");
goto alloceth_fail;
}
adapter = netdev_priv(net);
memset(adapter, 0, sizeof(struct net_adapter));
g_adapter = adapter;
adapter->pdata = (struct wimax732_platform_data *) id->driver_data;
adapter->pdata->g_cfg->card_removed = false;
adapter->pdata->g_cfg->powerup_done = false;
/* Initialize control */
control_init(adapter);
/* initialize hardware */
nRes = hw_init(adapter);
if (nRes) {
dump_debug("adapter_probe: error can't"
"allocate receive buffer");
goto hwInit_fail;
}
strcpy(net->name, "uwbr%d");
adapter->func = func;
adapter->net = net;
net->netdev_ops = &wimax_net_ops;
net->watchdog_timeo = ADAPTER_TIMEOUT;
net->mtu = WIMAX_MTU_SIZE;
adapter->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV
| NETIF_MSG_PROBE | NETIF_MSG_LINK);
ether_setup(net);
net->flags |= IFF_NOARP;
adapter->media_state = MEDIA_DISCONNECTED;
adapter->ready = FALSE;
adapter->halted = FALSE;
adapter->downloading = TRUE;
adapter->removed = FALSE;
adapter->mac_ready = FALSE;
sdio_set_drvdata(func, adapter);
SET_NETDEV_DEV(net, &func->dev);
nRes = register_netdev(net);
if (nRes)
goto regdev_fail;
netif_carrier_off(net);
netif_tx_stop_all_queues(net);
sdio_claim_host(adapter->func);
nRes = sdio_enable_func(adapter->func);
if (nRes < 0) {
dump_debug("sdio_enable func error = %d", nRes);
goto sdioen_fail;
}
nRes = sdio_claim_irq(adapter->func, adapter_interrupt);
if (nRes < 0) {
dump_debug("sdio_claim_irq = %d", nRes);
goto sdioirq_fail;
}
sdio_set_block_size(adapter->func, 512);
sdio_release_host(adapter->func);
memset(charName, 0x00, sizeof(charName));
create_char_name(charName, idx);
if (misc_register(&uwibro_dev) != 0) {
dump_debug("adapter_probe: misc_register() failed");
goto regchar_fail;
}
/* Dummy value for "ifconfig up" for 2.6.24 */
random_ether_addr(node_id);
memcpy(net->dev_addr, node_id, sizeof(node_id));
/* sangam dbg */
INIT_WORK(&adapter->receive_work, rx_process_data);
INIT_WORK(&adapter->transmit_work, hw_transmit_thread);
INIT_WORK(&adapter->wimax_reset, cmc7xx_sdio_reset);
if (hw_start(adapter)) {
/* Free the resources and stop the driver processing */
misc_deregister(&uwibro_dev);
dump_debug("hw_start failed");
goto regchar_fail;
}
adapter->ready = TRUE;
return 0;
regchar_fail:
sdio_claim_host(adapter->func);
sdio_release_irq(adapter->func);
sdioirq_fail:
sdio_disable_func(adapter->func);
sdioen_fail:
sdio_release_host(adapter->func);
unregister_netdev(adapter->net);
regdev_fail:
sdio_set_drvdata(func, NULL);
hw_remove(adapter);
hwInit_fail:
free_netdev(net);
alloceth_fail:
pdata->g_cfg->card_removed = true;
pdata->g_cfg->powerup_done = true;
pdata->power(0);
return nRes;
}
static int __devinit ag71xx_probe(struct platform_device *pdev)
{
struct net_device *dev;
struct resource *res;
struct ag71xx *ag;
struct ag71xx_platform_data *pdata;
int err;
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "no platform data specified\n");
err = -ENXIO;
goto err_out;
}
if (pdata->mii_bus_dev == NULL) {
dev_err(&pdev->dev, "no MII bus device specified\n");
err = -EINVAL;
goto err_out;
}
dev = alloc_etherdev(sizeof(*ag));
if (!dev) {
dev_err(&pdev->dev, "alloc_etherdev failed\n");
err = -ENOMEM;
goto err_out;
}
SET_NETDEV_DEV(dev, &pdev->dev);
ag = netdev_priv(dev);
ag->pdev = pdev;
ag->dev = dev;
ag->msg_enable = netif_msg_init(ag71xx_msg_level,
AG71XX_DEFAULT_MSG_ENABLE);
spin_lock_init(&ag->lock);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base");
if (!res) {
dev_err(&pdev->dev, "no mac_base resource found\n");
err = -ENXIO;
goto err_out;
}
ag->mac_base = ioremap_nocache(res->start, res->end - res->start + 1);
if (!ag->mac_base) {
dev_err(&pdev->dev, "unable to ioremap mac_base\n");
err = -ENOMEM;
goto err_free_dev;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mii_ctrl");
if (!res) {
dev_err(&pdev->dev, "no mii_ctrl resource found\n");
err = -ENXIO;
goto err_unmap_base;
}
ag->mii_ctrl = ioremap_nocache(res->start, res->end - res->start + 1);
if (!ag->mii_ctrl) {
dev_err(&pdev->dev, "unable to ioremap mii_ctrl\n");
err = -ENOMEM;
goto err_unmap_base;
}
dev->irq = platform_get_irq(pdev, 0);
err = request_irq(dev->irq, ag71xx_interrupt,
IRQF_DISABLED,
dev->name, dev);
if (err) {
dev_err(&pdev->dev, "unable to request IRQ %d\n", dev->irq);
goto err_unmap_mii_ctrl;
}
dev->base_addr = (unsigned long)ag->mac_base;
dev->netdev_ops = &ag71xx_netdev_ops;
dev->ethtool_ops = &ag71xx_ethtool_ops;
INIT_WORK(&ag->restart_work, ag71xx_restart_work_func);
init_timer(&ag->oom_timer);
ag->oom_timer.data = (unsigned long) dev;
ag->oom_timer.function = ag71xx_oom_timer_handler;
memcpy(dev->dev_addr, pdata->mac_addr, ETH_ALEN);
netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
err = register_netdev(dev);
if (err) {
dev_err(&pdev->dev, "unable to register net device\n");
goto err_free_irq;
}
printk(KERN_INFO "%s: Atheros AG71xx at 0x%08lx, irq %d\n",
dev->name, dev->base_addr, dev->irq);
ag71xx_dump_regs(ag);
ag71xx_hw_init(ag);
ag71xx_dump_regs(ag);
err = ag71xx_phy_connect(ag);
if (err)
goto err_unregister_netdev;
err = ag71xx_debugfs_init(ag);
if (err)
goto err_phy_disconnect;
platform_set_drvdata(pdev, dev);
return 0;
err_phy_disconnect:
ag71xx_phy_disconnect(ag);
err_unregister_netdev:
unregister_netdev(dev);
err_free_irq:
free_irq(dev->irq, dev);
err_unmap_mii_ctrl:
iounmap(ag->mii_ctrl);
err_unmap_base:
iounmap(ag->mac_base);
err_free_dev:
kfree(dev);
err_out:
platform_set_drvdata(pdev, NULL);
return err;
}