summaryrefslogtreecommitdiff
path: root/include/linux/skbuff.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r--include/linux/skbuff.h17
1 files changed, 12 insertions, 5 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index ec89301ada41..369430340ed9 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -211,7 +211,7 @@ 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
+ * @syststamp: hwtstamp transformed to system time base (deprecated)
*
* Software time stamps generated by ktime_get_real() are stored in
* skb->tstamp. The relation between the different kinds of time
@@ -222,7 +222,9 @@ static inline void skb_frag_size_sub(skb_frag_t *frag, int delta)
* 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.
+ * hardware. The syststamp implementation is deprecated in favor
+ * of hwtstamps and hw PTP clock sources exposed directly to
+ * userspace.
*
* hwtstamps can only be compared against other hwtstamps from
* the same device.
@@ -455,6 +457,7 @@ 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 +565,7 @@ 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 +579,7 @@ 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 +834,14 @@ 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 +855,7 @@ 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 +868,7 @@ 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;
};
@@ -3005,7 +3012,7 @@ 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)