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net: qualcomm: rmnet: Add support for GRO

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Add gro_cells so that rmnet devices can call gro_cells_receive
instead of netif_receive_skb.

Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Subash Abhinov Kasiviswanathan 2017-10-26 11:06:49 -06:00 committed by David S. Miller
parent 192c4b5d48
commit ca32fb034c
4 changed files with 14 additions and 1 deletions
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1
drivers/net/ethernet/qualcomm/rmnet/Kconfig
View File

@ -5,6 +5,7 @@
menuconfig RMNET
tristate "RmNet MAP driver"
default n
select GRO_CELLS
---help---
If you select this, you will enable the RMNET module which is used
for handling data in the multiplexing and aggregation protocol (MAP)

2
drivers/net/ethernet/qualcomm/rmnet/rmnet_config.h
View File

@ -14,6 +14,7 @@
*/
#include <linux/skbuff.h>
#include <net/gro_cells.h>
#ifndef _RMNET_CONFIG_H_
#define _RMNET_CONFIG_H_
@ -58,6 +59,7 @@ struct rmnet_priv {
u8 mux_id;
struct net_device *real_dev;
struct rmnet_pcpu_stats __percpu *pcpu_stats;
struct gro_cells gro_cells;
};
struct rmnet_port *rmnet_get_port(struct net_device *real_dev);

4
drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c
View File

@ -46,13 +46,15 @@ static void rmnet_set_skb_proto(struct sk_buff *skb)
static void
rmnet_deliver_skb(struct sk_buff *skb)
{
struct rmnet_priv *priv = netdev_priv(skb->dev);
skb_reset_transport_header(skb);
skb_reset_network_header(skb);
rmnet_vnd_rx_fixup(skb, skb->dev);
skb->pkt_type = PACKET_HOST;
skb_set_mac_header(skb, 0);
netif_receive_skb(skb);
gro_cells_receive(&priv->gro_cells, skb);
}
/* MAP handler */

8
drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c
View File

@ -87,11 +87,18 @@ static int rmnet_vnd_get_iflink(const struct net_device *dev)
static int rmnet_vnd_init(struct net_device *dev)
{
struct rmnet_priv *priv = netdev_priv(dev);
int err;
priv->pcpu_stats = alloc_percpu(struct rmnet_pcpu_stats);
if (!priv->pcpu_stats)
return -ENOMEM;
err = gro_cells_init(&priv->gro_cells, dev);
if (err) {
free_percpu(priv->pcpu_stats);
return err;
}
return 0;
}
@ -99,6 +106,7 @@ static void rmnet_vnd_uninit(struct net_device *dev)
{
struct rmnet_priv *priv = netdev_priv(dev);
gro_cells_destroy(&priv->gro_cells);
free_percpu(priv->pcpu_stats);
}