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[RFC,1/7] skbuff: define field for hash report type

Message ID 20210112194143.1494-2-yuri.benditovich@daynix.com (mailing list archive)
State RFC
Headers show
Series Support for virtio-net hash reporting | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Yuri Benditovich Jan. 12, 2021, 7:41 p.m. UTC 
Used by virtio-net receive side scaling

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
---
 include/linux/skbuff.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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Patch

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 416bf95cd5f2..36cf40ec0259 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -510,7 +510,7 @@  int skb_zerocopy_iter_stream(struct sock *sk, struct sk_buff *skb,
  * the end of the header data, ie. at skb->end.
  */
 struct skb_shared_info {
-	__u8		__unused;
+	__u8		hash_report_type; /* virtio-net rss */
 	__u8		meta_len;
 	__u8		nr_frags;
 	__u8		tx_flags;
@@ -1430,6 +1430,11 @@  static inline struct skb_shared_hwtstamps *skb_hwtstamps(struct sk_buff *skb)
 	return &skb_shinfo(skb)->hwtstamps;
 }
 
+static inline __u8 *skb_hash_report_type(struct sk_buff *skb)
+{
+	return &skb_shinfo(skb)->hash_report_type;
+}
+
 static inline struct ubuf_info *skb_zcopy(struct sk_buff *skb)
 {
 	bool is_zcopy = skb && skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY;