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-rw-r--r--include/linux/skbuff.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index ca8806b69388..5b50278c4bc8 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -611,9 +611,15 @@ typedef unsigned char *sk_buff_data_t;
* @next: Next buffer in list
* @prev: Previous buffer in list
* @tstamp: Time we arrived/left
+ * @skb_mstamp_ns: (aka @tstamp) earliest departure time; start point
+ * for retransmit timer
* @rbnode: RB tree node, alternative to next/prev for netem/tcp
+ * @list: queue head
* @sk: Socket we are owned by
+ * @ip_defrag_offset: (aka @sk) alternate use of @sk, used in
+ * fragmentation management
* @dev: Device we arrived on/are leaving by
+ * @dev_scratch: (aka @dev) alternate use of @dev when @dev would be %NULL
* @cb: Control buffer. Free for use by every layer. Put private vars here
* @_skb_refdst: destination entry (with norefcount bit)
* @sp: the security path, used for xfrm
@@ -632,6 +638,9 @@ typedef unsigned char *sk_buff_data_t;
* @pkt_type: Packet class
* @fclone: skbuff clone status
* @ipvs_property: skbuff is owned by ipvs
+ * @inner_protocol_type: whether the inner protocol is
+ * ENCAP_TYPE_ETHER or ENCAP_TYPE_IPPROTO
+ * @remcsum_offload: remote checksum offload is enabled
* @offload_fwd_mark: Packet was L2-forwarded in hardware
* @offload_l3_fwd_mark: Packet was L3-forwarded in hardware
* @tc_skip_classify: do not classify packet. set by IFB device
@@ -650,6 +659,8 @@ typedef unsigned char *sk_buff_data_t;
* @tc_index: Traffic control index
* @hash: the packet hash
* @queue_mapping: Queue mapping for multiqueue devices
+ * @head_frag: skb was allocated from page fragments,
+ * not allocated by kmalloc() or vmalloc().
* @pfmemalloc: skbuff was allocated from PFMEMALLOC reserves
* @active_extensions: active extensions (skb_ext_id types)
* @ndisc_nodetype: router type (from link layer)
@@ -660,15 +671,28 @@ typedef unsigned char *sk_buff_data_t;
* @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
+ * @encapsulation: indicates the inner headers in the skbuff are valid
+ * @encap_hdr_csum: software checksum is needed
+ * @csum_valid: checksum is already valid
* @csum_not_inet: use CRC32c to resolve CHECKSUM_PARTIAL
+ * @csum_complete_sw: checksum was completed by software
+ * @csum_level: indicates the number of consecutive checksums found in
+ * the packet minus one that have been verified as
+ * CHECKSUM_UNNECESSARY (max 3)
* @dst_pending_confirm: need to confirm neighbour
* @decrypted: Decrypted SKB
* @napi_id: id of the NAPI struct this skb came from
+ * @sender_cpu: (aka @napi_id) source CPU in XPS
* @secmark: security marking
* @mark: Generic packet mark
+ * @reserved_tailroom: (aka @mark) number of bytes of free space available
+ * at the tail of an sk_buff
+ * @vlan_present: VLAN tag is present
* @vlan_proto: vlan encapsulation protocol
* @vlan_tci: vlan tag control information
* @inner_protocol: Protocol (encapsulation)
+ * @inner_ipproto: (aka @inner_protocol) stores ipproto when
+ * skb->inner_protocol_type == ENCAP_TYPE_IPPROTO;
* @inner_transport_header: Inner transport layer header (encapsulation)
* @inner_network_header: Network layer header (encapsulation)
* @inner_mac_header: Link layer header (encapsulation)
@@ -750,7 +774,9 @@ struct sk_buff {
#endif
#define CLONED_OFFSET() offsetof(struct sk_buff, __cloned_offset)
+ /* private: */
__u8 __cloned_offset[0];
+ /* public: */
__u8 cloned:1,
nohdr:1,
fclone:2,
@@ -775,7 +801,9 @@ struct sk_buff {
#endif
#define PKT_TYPE_OFFSET() offsetof(struct sk_buff, __pkt_type_offset)
+ /* private: */
__u8 __pkt_type_offset[0];
+ /* public: */
__u8 pkt_type:3;
__u8 ignore_df:1;
__u8 nf_trace:1;
@@ -798,7 +826,9 @@ struct sk_buff {
#define PKT_VLAN_PRESENT_BIT 0
#endif
#define PKT_VLAN_PRESENT_OFFSET() offsetof(struct sk_buff, __pkt_vlan_present_offset)
+ /* private: */
__u8 __pkt_vlan_present_offset[0];
+ /* public: */
__u8 vlan_present:1;
__u8 csum_complete_sw:1;
__u8 csum_level:2;