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net: qualcomm: rmnet: Process packets over ethernet

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Add support to send and receive packets over ethernet.
An example of usage is testing the data path on UML. This can be
achieved by setting up two UML instances in multicast mode and
associating rmnet over the UML ethernet device.

Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Subash Abhinov Kasiviswanathan 2017-12-11 17:30:13 -07:00 committed by David S. Miller
parent e971a9a09d
commit 74692caf1b
1 changed files with 10 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c
View file

@ -15,6 +15,7 @@
#include <linux/netdevice.h> #include <linux/netdevice.h>
#include <linux/netdev_features.h> #include <linux/netdev_features.h>
#include <linux/if_arp.h>
#include "rmnet_private.h" #include "rmnet_private.h"
#include "rmnet_config.h" #include "rmnet_config.h"
#include "rmnet_vnd.h" #include "rmnet_vnd.h"
@ -104,6 +105,15 @@ rmnet_map_ingress_handler(struct sk_buff *skb,
{ {
struct sk_buff *skbn; struct sk_buff *skbn;
if (skb->dev->type == ARPHRD_ETHER) {
if (pskb_expand_head(skb, ETH_HLEN, 0, GFP_KERNEL)) {
kfree_skb(skb);
return;
}
skb_push(skb, ETH_HLEN);
}
if (port->ingress_data_format & RMNET_INGRESS_FORMAT_DEAGGREGATION) { if (port->ingress_data_format & RMNET_INGRESS_FORMAT_DEAGGREGATION) {
while ((skbn = rmnet_map_deaggregate(skb)) != NULL) while ((skbn = rmnet_map_deaggregate(skb)) != NULL)
__rmnet_map_ingress_handler(skbn, port); __rmnet_map_ingress_handler(skbn, port);