diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2021-07-28 18:24:03 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-29 12:18:12 +0100 |
| commit | 5e10da5385d20c4bae587bc2921e5fdd9655d5fc (patch) | |
| tree | b199e9c7b0e962d363ed6a4d06d6521af76018d9 /net/core/dev.c | |
| parent | 9efb4b5baf6ce851b247288992b0632cb4d31c17 (diff) | |
skbuff: allow 'slow_gro' for skb carring sock reference
This change leverages the infrastructure introduced by the previous
patches to allow soft devices passing to the GRO engine owned skbs
without impacting the fast-path.
It's up to the GRO caller ensuring the slow_gro bit validity before
invoking the GRO engine. The new helper skb_prepare_for_gro() is
introduced for that goal.
On slow_gro, skbs are aggregated only with equal sk.
Additionally, skb truesize on GRO recycle and free is correctly
updated so that sk wmem is not changed by the GRO processing.
rfc-> v1:
- fixed bad truesize on dev_gro_receive NAPI_FREE
- use the existing state bit
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 19565f7497ee..dcc87fcd64ba 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -6034,6 +6034,7 @@ static void gro_list_prepare(const struct list_head *head, struct tc_skb_ext *p_ext; #endif + diffs |= p->sk != skb->sk; diffs |= skb_metadata_dst_cmp(p, skb); diffs |= skb_get_nfct(p) ^ skb_get_nfct(skb); @@ -6311,6 +6312,7 @@ static void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb) skb_shinfo(skb)->gso_type = 0; skb->truesize = SKB_TRUESIZE(skb_end_offset(skb)); if (unlikely(skb->slow_gro)) { + skb_orphan(skb); skb_ext_reset(skb); nf_reset_ct(skb); skb->slow_gro = 0; |