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Commit 25393d3f authored by Steffen Klassert's avatar Steffen Klassert
Browse files

net: Prepare gro for packet consuming gro callbacks 



The upcomming IPsec ESP gro callbacks will consume the skb,
so prepare for that.

Signed-off-by: default avatarSteffen Klassert <steffen.klassert@secunet.com>
parent 5f114163

include/linux/netdevice.h

+9 −0
Original line number Diff line number Diff line
@@ -352,6 +352,7 @@ enum gro_result { 
	GRO_HELD,

	GRO_NORMAL,

	GRO_DROP,

	GRO_CONSUMED,

};

typedef enum gro_result gro_result_t;
@@ -2661,10 +2662,18 @@ static inline void skb_gro_remcsum_cleanup(struct sk_buff *skb, 
	remcsum_unadjust((__sum16 *)ptr, grc->delta);

}



#ifdef CONFIG_XFRM_OFFLOAD

static inline void skb_gro_flush_final(struct sk_buff *skb, struct sk_buff **pp, int flush)

{

	if (PTR_ERR(pp) != -EINPROGRESS)

		NAPI_GRO_CB(skb)->flush |= flush;

}

#else

static inline void skb_gro_flush_final(struct sk_buff *skb, struct sk_buff **pp, int flush)

{

	NAPI_GRO_CB(skb)->flush |= flush;

}

#endif



static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev,

				  unsigned short type,

net/core/dev.c

+7 −0
Original line number Diff line number Diff line
@@ -4505,6 +4505,11 @@ static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff 
	if (&ptype->list == head)

		goto normal;



	if (IS_ERR(pp) && PTR_ERR(pp) == -EINPROGRESS) {

		ret = GRO_CONSUMED;

		goto ok;

	}



	same_flow = NAPI_GRO_CB(skb)->same_flow;

	ret = NAPI_GRO_CB(skb)->free ? GRO_MERGED_FREE : GRO_MERGED;
@@ -4609,6 +4614,7 @@ static gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb) 


	case GRO_HELD:

	case GRO_MERGED:

	case GRO_CONSUMED:

		break;

	}
@@ -4680,6 +4686,7 @@ static gro_result_t napi_frags_finish(struct napi_struct *napi, 
		break;



	case GRO_MERGED:

	case GRO_CONSUMED:

		break;

	}

net/xfrm/Kconfig

+4 −0
Original line number Diff line number Diff line
@@ -5,6 +5,10 @@ config XFRM 
       bool

       depends on NET



config XFRM_OFFLOAD

       bool

       depends on XFRM



config XFRM_ALGO

	tristate

	select XFRM