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Commit 6348f9f9 authored by Subash Abhinov Kasiviswanathan's avatar Subash Abhinov Kasiviswanathan
Browse files

net: qualcomm: rmnet: Add support for GRO 



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

CRs-Fixed: 2156182
Change-Id: I6fc0bbc2ea13aa1c4f25425a44e65f365ac08d8c
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Git-commit: ca32fb034c19e00cfb5e0fd7217eb92f81302048
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: default avatarSubash Abhinov Kasiviswanathan <subashab@codeaurora.org>
parent 49b72ed7

drivers/net/ethernet/qualcomm/rmnet/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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)

drivers/net/ethernet/qualcomm/rmnet/rmnet_config.h

+2 −0
Original line number Diff line number Diff line
@@ -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);

drivers/net/ethernet/qualcomm/rmnet/rmnet_handlers.c

+3 −1
Original line number Diff line number Diff line
@@ -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 */

drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c

+8 −0
Original line number Diff line number Diff line
@@ -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);

}