/**
* request_netinfo - triggers retrieving of network info
* @iface: pointer to the interface
* @channel_id: corresponding channel ID
*
* Send a command to INIC which triggers retrieving of network info by means of
* "Message exchange over MDP/MEP". Return 0 on success, negative on failure.
*/
static void request_netinfo(struct most_interface *most_iface, int ch_idx,
void (*on_netinfo)(struct most_interface *,
unsigned char, unsigned char *))
{
struct dim2_hdm *dev = iface_to_hdm(most_iface);
struct mbo *mbo;
u8 *data;
dev->on_netinfo = on_netinfo;
if (!on_netinfo)
return;
if (dev->atx_idx < 0) {
pr_err("Async Tx Not initialized\n");
return;
}
mbo = most_get_mbo(&dev->most_iface, dev->atx_idx, NULL);
if (!mbo)
return;
mbo->buffer_length = 5;
data = mbo->virt_address;
data[0] = 0x00; /* PML High byte */
data[1] = 0x03; /* PML Low byte */
data[2] = 0x02; /* PMHL */
data[3] = 0x08; /* FPH */
data[4] = 0x40; /* FMF (FIFO cmd msg - Triggers NAOverMDP) */
most_submit_mbo(mbo);
}
static netdev_tx_t most_nd_start_xmit(struct sk_buff *skb,
struct net_device *dev)
{
struct net_dev_context *nd = netdev_priv(dev);
struct mbo *mbo;
int ret;
mbo = most_get_mbo(nd->iface, nd->tx.ch_id, &comp);
if (!mbo) {
netif_stop_queue(dev);
dev->stats.tx_fifo_errors++;
return NETDEV_TX_BUSY;
}
if (nd->is_mamac)
ret = skb_to_mamac(skb, mbo);
else
ret = skb_to_mep(skb, mbo);
if (ret) {
most_put_mbo(mbo);
dev->stats.tx_dropped++;
kfree_skb(skb);
return NETDEV_TX_OK;
}
most_submit_mbo(mbo);
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
kfree_skb(skb);
return NETDEV_TX_OK;
}