static void
rmnet_map_ingress_handler(struct sk_buff *skb,
struct rmnet_port *port)
{
struct sk_buff *skbn;
if (port->ingress_data_format & RMNET_INGRESS_FORMAT_DEAGGREGATION) {
while ((skbn = rmnet_map_deaggregate(skb)) != NULL)
__rmnet_map_ingress_handler(skbn, port);
consume_skb(skb);
} else {
__rmnet_map_ingress_handler(skb, port);
}
}
/**
* rmnet_map_ingress_handler() - MAP ingress handler
* @skb: Packet being received
* @config: Physical endpoint configuration for the ingress device
*
* Called if and only if MAP is configured in the ingress device's ingress data
* format. Deaggregation is done here, actual MAP processing is done in
* _rmnet_map_ingress_handler().
*
* Return:
* - RX_HANDLER_CONSUMED for aggregated packets
* - RX_HANDLER_CONSUMED for dropped packets
* - result of _rmnet_map_ingress_handler() for all other cases
*/
static rx_handler_result_t rmnet_map_ingress_handler(struct sk_buff *skb,
struct rmnet_phys_ep_conf_s *config)
{
struct sk_buff *skbn;
int rc, co = 0;
if (config->ingress_data_format & RMNET_INGRESS_FORMAT_DEAGGREGATION) {
trace_rmnet_start_deaggregation(skb);
while ((skbn = rmnet_map_deaggregate(skb, config)) != 0) {
_rmnet_map_ingress_handler(skbn, config);
co++;
}
trace_rmnet_end_deaggregation(skb, co);
LOGD("De-aggregated %d packets", co);
rmnet_stats_deagg_pkts(co);
rmnet_kfree_skb(skb, RMNET_STATS_SKBFREE_MAPINGRESS_AGGBUF);
rc = RX_HANDLER_CONSUMED;
} else {
rc = _rmnet_map_ingress_handler(skb, config);
}
return rc;
}
static void
rmnet_map_ingress_handler(struct sk_buff *skb,
struct rmnet_port *port)
{
struct sk_buff *skbn;
if (skb->dev->type == ARPHRD_ETHER) {
if (pskb_expand_head(skb, ETH_HLEN, 0, GFP_ATOMIC)) {
kfree_skb(skb);
return;
}
skb_push(skb, ETH_HLEN);
}
if (port->data_format & RMNET_FLAGS_INGRESS_DEAGGREGATION) {
while ((skbn = rmnet_map_deaggregate(skb, port)) != NULL)
__rmnet_map_ingress_handler(skbn, port);
consume_skb(skb);
} else {
__rmnet_map_ingress_handler(skb, port);
}
}
