void rmnet_mhi_rx_cb(mhi_cb_info *cb_info)
{
struct net_device *dev;
struct rmnet_mhi_private *rmnet_mhi_ptr;
if (NULL != cb_info && NULL != cb_info->result) {
dev = (struct net_device *)cb_info->result->user_data;
rmnet_mhi_ptr = netdev_priv(dev);
}
switch(cb_info->cb_reason) {
case MHI_CB_XFER_SUCCESS:
case MHI_CB_MHI_ENABLED:
break;
case MHI_CB_MHI_DISABLED:
return;
break;
default:
pr_err("%s(): Received bad return code %d from core", __func__,
cb_info->cb_reason);
break;
}
rx_interrupts_count[rmnet_mhi_ptr->dev_index]++;
/* Disable interrupts */
mhi_mask_irq(rmnet_mhi_ptr->rx_client_handle);
atomic_inc(&rmnet_mhi_ptr->irq_masked);
/* We need to start a watchdog here, not sure how to do that yet */
if (napi_schedule_prep(&(rmnet_mhi_ptr->napi)))
__napi_schedule(&(rmnet_mhi_ptr->napi));
else
rx_interrupts_in_masked_irq[rmnet_mhi_ptr->dev_index]++;
}
static int rmnet_mhi_open(struct net_device *dev)
{
struct rmnet_mhi_private *rmnet_mhi_ptr =
*(struct rmnet_mhi_private **)netdev_priv(dev);
rmnet_log(MSG_INFO,
"Opened net dev interface for MHI chans %d and %d\n",
rmnet_mhi_ptr->tx_channel,
rmnet_mhi_ptr->rx_channel);
netif_start_queue(dev);
napi_enable(&(rmnet_mhi_ptr->napi));
/* Poll to check if any buffers are accumulated in the
* transport buffers
*/
if (napi_schedule_prep(&(rmnet_mhi_ptr->napi))) {
mhi_mask_irq(rmnet_mhi_ptr->rx_client_handle);
atomic_inc(&rmnet_mhi_ptr->irq_masked_cntr);
__napi_schedule(&(rmnet_mhi_ptr->napi));
} else {
rx_interrupts_in_masked_irq[rmnet_mhi_ptr->dev_index]++;
}
return 0;
}
static void rmnet_mhi_rx_cb(struct mhi_result *result)
{
struct net_device *dev;
struct rmnet_mhi_private *rmnet_mhi_ptr;
rmnet_mhi_ptr = result->user_data;
dev = rmnet_mhi_ptr->dev;
rmnet_log(MSG_VERBOSE, "Entered\n");
rx_interrupts_count[rmnet_mhi_ptr->dev_index]++;
if (napi_schedule_prep(&(rmnet_mhi_ptr->napi))) {
mhi_mask_irq(rmnet_mhi_ptr->rx_client_handle);
atomic_inc(&rmnet_mhi_ptr->irq_masked_cntr);
__napi_schedule(&(rmnet_mhi_ptr->napi));
} else {
rx_interrupts_in_masked_irq[rmnet_mhi_ptr->dev_index]++;
}
rmnet_log(MSG_VERBOSE, "Exited\n");
}