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authorMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>2017-10-04 01:20:17 +0300
committerDavid S. Miller <davem@davemloft.net>2017-10-04 02:27:29 +0300
commitac1ed8b82cd60ba8e7d84103ac1414b8c577c485 (patch)
tree23144fff13a5bb0ac5a84f429fd8ac768b49a214 /include/net/sctp
parent637784ade221a3c8a7ecd0f583eddd95d6276b9a (diff)
downloadlinux-ac1ed8b82cd60ba8e7d84103ac1414b8c577c485.tar.xz
sctp: introduce round robin stream scheduler
This patch introduces RFC Draft ndata section 3.2 Priority Based Scheduler (SCTP_SS_RR). Works by maintaining a list of enqueued streams and tracking the last one used to send data. When the datamsg is done, it switches to the next stream. See-also: https://tools.ietf.org/html/draft-ietf-tsvwg-sctp-ndata-13 Tested-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sctp')
-rw-r--r--include/net/sctp/structs.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 40eb8d66a37c..16f949eef52f 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1348,6 +1348,10 @@ struct sctp_stream_out_ext {
struct list_head prio_list;
struct sctp_stream_priorities *prio_head;
};
+ /* Fields used by RR scheduler */
+ struct {
+ struct list_head rr_list;
+ };
};
};
@@ -1374,6 +1378,13 @@ struct sctp_stream {
/* List of priorities scheduled */
struct list_head prio_list;
};
+ /* Fields used by RR scheduler */
+ struct {
+ /* List of streams scheduled */
+ struct list_head rr_list;
+ /* The next stream stream in line */
+ struct sctp_stream_out_ext *rr_next;
+ };
};
};