1 files changed, 28 insertions, 17 deletions

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index ec89301ada41..abde271c18ae 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -112,8 +112,7 @@
 #define CHECKSUM_COMPLETE       2
 #define CHECKSUM_PARTIAL        3
 
-#define SKB_DATA_ALIGN(X)       (((X) + (SMP_CACHE_BYTES - 1)) & \
-                                 ~(SMP_CACHE_BYTES - 1))
+#define SKB_DATA_ALIGN(X)       ALIGN(X, SMP_CACHE_BYTES)
 #define SKB_WITH_OVERHEAD(X)    \
         ((X) - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
 #define SKB_MAX_ORDER(X, ORDER) \
@@ -211,18 +210,9 @@ static inline void skb_frag_size_sub(skb_frag_t *frag, int delta)
  * struct skb_shared_hwtstamps - hardware time stamps
  * @hwtstamp:   hardware time stamp transformed into duration
  *              since arbitrary point in time
- * @syststamp:  hwtstamp transformed to system time base
  *
  * Software time stamps generated by ktime_get_real() are stored in
- * skb->tstamp. The relation between the different kinds of time
- * stamps is as follows:
- *
- * syststamp and tstamp can be compared against each other in
- * arbitrary combinations.  The accuracy of a
- * syststamp/tstamp/"syststamp from other device" comparison is
- * limited by the accuracy of the transformation into system time
- * base. This depends on the device driver and its underlying
- * hardware.
+ * skb->tstamp.
  *
  * hwtstamps can only be compared against other hwtstamps from
  * the same device.
@@ -232,7 +222,6 @@ static inline void skb_frag_size_sub(skb_frag_t *frag, int delta)
  */
 struct skb_shared_hwtstamps {
         ktime_t hwtstamp;
-        ktime_t syststamp;
 };
 
 /* Definitions for tx_flags in struct skb_shared_info */
@@ -240,7 +229,7 @@ enum {
         /* generate hardware time stamp */
         SKBTX_HW_TSTAMP = 1 << 0,
 
-        /* generate software time stamp */
+        /* generate software time stamp when queueing packet to NIC */
         SKBTX_SW_TSTAMP = 1 << 1,
 
         /* device driver is going to provide hardware time stamp */
@@ -258,8 +247,19 @@ enum {
          * all frags to avoid possible bad checksum
          */
         SKBTX_SHARED_FRAG = 1 << 5,
+
+        /* generate software time stamp when entering packet scheduling */
+        SKBTX_SCHED_TSTAMP = 1 << 6,
+
+        /* generate software timestamp on peer data acknowledgment */
+        SKBTX_ACK_TSTAMP = 1 << 7,
 };
 
+#define SKBTX_ANY_SW_TSTAMP     (SKBTX_SW_TSTAMP    | \
+                                 SKBTX_SCHED_TSTAMP | \
+                                 SKBTX_ACK_TSTAMP)
+#define SKBTX_ANY_TSTAMP        (SKBTX_HW_TSTAMP | SKBTX_ANY_SW_TSTAMP)
+
 /*
  * The callback notifies userspace to release buffers when skb DMA is done in
  * lower device, the skb last reference should be 0 when calling this.
@@ -286,6 +286,7 @@ struct skb_shared_info {
         unsigned short  gso_type;
         struct sk_buff  *frag_list;
         struct skb_shared_hwtstamps hwtstamps;
+        u32             tskey;
         __be32          ip6_frag_id;
 
         /*
@@ -455,6 +456,7 @@ static inline u32 skb_mstamp_us_delta(const struct skb_mstamp *t1,
  *      @ooo_okay: allow the mapping of a socket to a queue to be changed
  *      @l4_hash: indicate hash is a canonical 4-tuple hash over transport
  *              ports.
+ *      @sw_hash: indicates hash was computed in software stack
  *      @wifi_acked_valid: wifi_acked was set
  *      @wifi_acked: whether frame was acked on wifi or not
  *      @no_fcs:  Request NIC to treat last 4 bytes as Ethernet FCS
@@ -562,6 +564,7 @@ struct sk_buff {
         __u8                    pfmemalloc:1;
         __u8                    ooo_okay:1;
         __u8                    l4_hash:1;
+        __u8                    sw_hash:1;
         __u8                    wifi_acked_valid:1;
         __u8                    wifi_acked:1;
         __u8                    no_fcs:1;
@@ -575,7 +578,7 @@ struct sk_buff {
         __u8                    encap_hdr_csum:1;
         __u8                    csum_valid:1;
         __u8                    csum_complete_sw:1;
-        /* 3/5 bit hole (depending on ndisc_nodetype presence) */
+        /* 2/4 bit hole (depending on ndisc_nodetype presence) */
         kmemcheck_bitfield_end(flags2);
 
 #if defined CONFIG_NET_DMA || defined CONFIG_NET_RX_BUSY_POLL
@@ -830,13 +833,14 @@ static inline void
 skb_set_hash(struct sk_buff *skb, __u32 hash, enum pkt_hash_types type)
 {
         skb->l4_hash = (type == PKT_HASH_TYPE_L4);
+        skb->sw_hash = 0;
         skb->hash = hash;
 }
 
 void __skb_get_hash(struct sk_buff *skb);
 static inline __u32 skb_get_hash(struct sk_buff *skb)
 {
-        if (!skb->l4_hash)
+        if (!skb->l4_hash && !skb->sw_hash)
                 __skb_get_hash(skb);
 
         return skb->hash;
@@ -850,6 +854,7 @@ static inline __u32 skb_get_hash_raw(const struct sk_buff *skb)
 static inline void skb_clear_hash(struct sk_buff *skb)
 {
         skb->hash = 0;
+        skb->sw_hash = 0;
         skb->l4_hash = 0;
 }
 
@@ -862,6 +867,7 @@ static inline void skb_clear_hash_if_not_l4(struct sk_buff *skb)
 static inline void skb_copy_hash(struct sk_buff *to, const struct sk_buff *from)
 {
         to->hash = from->hash;
+        to->sw_hash = from->sw_hash;
         to->l4_hash = from->l4_hash;
 };
 
@@ -2549,6 +2555,7 @@ int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen);
 void skb_scrub_packet(struct sk_buff *skb, bool xnet);
 unsigned int skb_gso_transport_seglen(const struct sk_buff *skb);
 struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features);
+struct sk_buff *skb_vlan_untag(struct sk_buff *skb);
 
 struct skb_checksum_ops {
         __wsum (*update)(const void *mem, int len, __wsum wsum);
@@ -2697,6 +2704,10 @@ static inline bool skb_defer_rx_timestamp(struct sk_buff *skb)
 void skb_complete_tx_timestamp(struct sk_buff *skb,
                                struct skb_shared_hwtstamps *hwtstamps);
 
+void __skb_tstamp_tx(struct sk_buff *orig_skb,
+                     struct skb_shared_hwtstamps *hwtstamps,
+                     struct sock *sk, int tstype);
+
 /**
  * skb_tstamp_tx - queue clone of skb with send time stamps
  * @orig_skb:   the original outgoing packet
@@ -3005,7 +3016,7 @@ static inline bool skb_rx_queue_recorded(const struct sk_buff *skb)
         return skb->queue_mapping != 0;
 }
 
-u16 __skb_tx_hash(const struct net_device *dev, const struct sk_buff *skb,
+u16 __skb_tx_hash(const struct net_device *dev, struct sk_buff *skb,
                   unsigned int num_tx_queues);
 
 static inline struct sec_path *skb_sec_path(struct sk_buff *skb)