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| author | Steffen Klassert <steffen.klassert@secunet.com> | 2017-02-15 09:39:44 +0100 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2017-02-15 09:39:44 +0100 |
| commit | 25393d3fc055b76587fcc91627aee8c345400c3a (patch) | |
| tree | 79405b1081d20494137ea9c4058073e98e75259d | |
| parent | net: Add a skb_gro_flush_final helper. (diff) | |
| download | linux-25393d3fc055b76587fcc91627aee8c345400c3a.tar.xz linux-25393d3fc055b76587fcc91627aee8c345400c3a.zip | |
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: Steffen Klassert <steffen.klassert@secunet.com>
| -rw-r--r-- | include/linux/netdevice.h | 9 | ||||
| -rw-r--r-- | net/core/dev.c | 7 | ||||
| -rw-r--r-- | net/xfrm/Kconfig | 4 |
3 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index f9da3acfee9a..9e5d1cd9d975 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -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, diff --git a/net/core/dev.c b/net/core/dev.c index 3e1a60102e64..64efbb9e4436 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -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; } diff --git a/net/xfrm/Kconfig b/net/xfrm/Kconfig index bda1a13628a8..a484451c72ec 100644 --- a/net/xfrm/Kconfig +++ b/net/xfrm/Kconfig @@ -5,6 +5,10 @@ config XFRM bool depends on NET +config XFRM_OFFLOAD + bool + depends on XFRM + config XFRM_ALGO tristate select XFRM |