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#include "headers.h"
struct net_device *gblpnetdev;
static INT bcm_open(struct net_device *dev)
{
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(dev);
if (Adapter->fw_download_done == false) {
pr_notice(PFX "%s: link up failed (download in progress)\n",
dev->name);
return -EBUSY;
}
if (netif_msg_ifup(Adapter))
pr_info(PFX "%s: enabling interface\n", dev->name);
if (Adapter->LinkUpStatus) {
if (netif_msg_link(Adapter))
pr_info(PFX "%s: link up\n", dev->name);
netif_carrier_on(Adapter->dev);
netif_start_queue(Adapter->dev);
}
return 0;
}
static INT bcm_close(struct net_device *dev)
{
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(dev);
if (netif_msg_ifdown(Adapter))
pr_info(PFX "%s: disabling interface\n", dev->name);
netif_carrier_off(dev);
netif_stop_queue(dev);
return 0;
}
static u16 bcm_select_queue(struct net_device *dev, struct sk_buff *skb)
{
return ClassifyPacket(netdev_priv(dev), skb);
}
/*******************************************************************
* Function - bcm_transmit()
*
* Description - This is the main transmit function for our virtual
* interface(eth0). It handles the ARP packets. It
* clones this packet and then Queue it to a suitable
* Queue. Then calls the transmit_packet().
*
* Parameter - skb - Pointer to the socket buffer structure
* dev - Pointer to the virtual net device structure
*
*********************************************************************/
static netdev_tx_t bcm_transmit(struct sk_buff *skb, struct net_device *dev)
{
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(dev);
u16 qindex = skb_get_queue_mapping(skb);
if (Adapter->device_removed || !Adapter->LinkUpStatus)
goto drop;
if (Adapter->TransferMode != IP_PACKET_ONLY_MODE)
goto drop;
if (INVALID_QUEUE_INDEX == qindex)
goto drop;
if (Adapter->PackInfo[qindex].uiCurrentPacketsOnHost >=
SF_MAX_ALLOWED_PACKETS_TO_BACKUP)
return NETDEV_TX_BUSY;
/* Now Enqueue the packet */
if (netif_msg_tx_queued(Adapter))
pr_info(PFX "%s: enqueueing packet to queue %d\n",
dev->name, qindex);
spin_lock(&Adapter->PackInfo[qindex].SFQueueLock);
Adapter->PackInfo[qindex].uiCurrentBytesOnHost += skb->len;
Adapter->PackInfo[qindex].uiCurrentPacketsOnHost++;
*((B_UINT32 *) skb->cb + SKB_CB_LATENCY_OFFSET) = jiffies;
ENQUEUEPACKET(Adapter->PackInfo[qindex].FirstTxQueue,
Adapter->PackInfo[qindex].LastTxQueue, skb);
atomic_inc(&Adapter->TotalPacketCount);
spin_unlock(&Adapter->PackInfo[qindex].SFQueueLock);
/* FIXME - this is racy and incorrect, replace with work queue */
if (!atomic_read(&Adapter->TxPktAvail)) {
atomic_set(&Adapter->TxPktAvail, 1);
wake_up(&Adapter->tx_packet_wait_queue);
}
return NETDEV_TX_OK;
drop:
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
/**
@ingroup init_functions
Register other driver entry points with the kernel
*/
static const struct net_device_ops bcmNetDevOps = {
.ndo_open = bcm_open,
.ndo_stop = bcm_close,
.ndo_start_xmit = bcm_transmit,
.ndo_change_mtu = eth_change_mtu,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_select_queue = bcm_select_queue,
};
static struct device_type wimax_type = {
.name = "wimax",
};
static int bcm_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
cmd->supported = 0;
cmd->advertising = 0;
cmd->speed = SPEED_10000;
cmd->duplex = DUPLEX_FULL;
cmd->port = PORT_TP;
cmd->phy_address = 0;
cmd->transceiver = XCVR_INTERNAL;
cmd->autoneg = AUTONEG_DISABLE;
cmd->maxtxpkt = 0;
cmd->maxrxpkt = 0;
return 0;
}
static void bcm_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(dev);
struct bcm_interface_adapter *psIntfAdapter =
Adapter->pvInterfaceAdapter;
struct usb_device *udev = interface_to_usbdev(psIntfAdapter->interface);
strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
strlcpy(info->version, DRV_VERSION, sizeof(info->version));
snprintf(info->fw_version, sizeof(info->fw_version), "%u.%u",
Adapter->uiFlashLayoutMajorVersion,
Adapter->uiFlashLayoutMinorVersion);
usb_make_path(udev, info->bus_info, sizeof(info->bus_info));
}
static u32 bcm_get_link(struct net_device *dev)
{
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(dev);
return Adapter->LinkUpStatus;
}
static u32 bcm_get_msglevel(struct net_device *dev)
{
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(dev);
return Adapter->msg_enable;
}
static void bcm_set_msglevel(struct net_device *dev, u32 level)
{
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(dev);
Adapter->msg_enable = level;
}
static const struct ethtool_ops bcm_ethtool_ops = {
.get_settings = bcm_get_settings,
.get_drvinfo = bcm_get_drvinfo,
.get_link = bcm_get_link,
.get_msglevel = bcm_get_msglevel,
.set_msglevel = bcm_set_msglevel,
};
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;
}
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);
}
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