net/sctp/tsnmap.h

30  * Array    order TSN's have been received (relative to the
31  *          Last Rcvd TSN). If no gaps exist, i.e. no out of
37 	/* This array counts the number of chunks with each TSN.
43 	/* This is the TSN at tsn_map[0].  */
46 	/* Last Rcvd   : This is the last TSN received in
47 	 * TSN	       : sequence. This value is set initially by
48 	 *             : taking the peer's Initial TSN, received in
53 	 * "Cumulative TSN ACK Point".  In this case, we
59 	/* This is the highest TSN we've marked.  */
89 /* Test the tracking state of this TSN.
91  *   0 if the TSN has not yet been seen
92  *  >0 if the TSN has been seen (duplicate)
93  *  <0 if the TSN is invalid (too large to track)
95 int sctp_tsnmap_check(const struct sctp_tsnmap *, __u32 tsn);
97 /* Mark this TSN as seen.  */
98 int sctp_tsnmap_mark(struct sctp_tsnmap *, __u32 tsn,
101 /* Mark this TSN and all lower as seen. */
102 void sctp_tsnmap_skip(struct sctp_tsnmap *map, __u32 tsn);
104 /* Retrieve the Cumulative TSN ACK Point.  */
110 /* Retrieve the highest TSN we've seen.  */
122 /* Return pointer to duplicate tsn array as needed by SACK. */
136 /* Is there a gap in the TSN map?  */
142 /* Mark a duplicate TSN.  Note:  limit the storage of duplicate TSN
145 static inline void sctp_tsnmap_mark_dup(struct sctp_tsnmap *map, __u32 tsn)  in sctp_tsnmap_mark_dup()  argument
148 		map->dup_tsns[map->num_dup_tsns++] = htonl(tsn);  in sctp_tsnmap_mark_dup()
151 /* Renege a TSN that was seen.  */
152 void sctp_tsnmap_renege(struct sctp_tsnmap *, __u32 tsn);
154 /* Is there a gap in the TSN map? */