[NET]: Add documentation for TFRC structures
This adds documentation for the TFRC structure fields.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
diff --git a/include/linux/tfrc.h b/include/linux/tfrc.h
index 7dab783..31a9b25 100644
--- a/include/linux/tfrc.h
+++ b/include/linux/tfrc.h
@@ -1,7 +1,8 @@
#ifndef _LINUX_TFRC_H_
#define _LINUX_TFRC_H_
/*
- * include/linux/tfrc.h
+ * TFRC - Data Structures for the TCP-Friendly Rate Control congestion
+ * control mechanism as specified in RFC 3448.
*
* Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
* Copyright (c) 2005 Ian McDonald <iam4@cs.waikato.ac.nz>
@@ -13,15 +14,30 @@
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
-
#include <linux/types.h>
+/** tfrc_rx_info - TFRC Receiver Data Structure
+ *
+ * @tfrcrx_x_recv: receiver estimate of sending rate (3.2.2)
+ * @tfrcrx_rtt: round-trip-time (communicated by sender)
+ * @tfrcrx_p: current estimate of loss event rate (3.2.2)
+ */
struct tfrc_rx_info {
__u32 tfrcrx_x_recv;
__u32 tfrcrx_rtt;
__u32 tfrcrx_p;
};
+/** tfrc_tx_info - TFRC Sender Data Structure
+ *
+ * @tfrctx_x: computed transmit rate (4.3 (4))
+ * @tfrctx_x_recv: receiver estimate of send rate (4.3)
+ * @tfrctx_x_calc: return value of throughput equation (3.1)
+ * @tfrctx_rtt: (moving average) estimate of RTT (4.3)
+ * @tfrctx_p: current loss event rate (5.4)
+ * @tfrctx_rto: estimate of RTO, equals 4*RTT (4.3)
+ * @tfrctx_ipi: inter-packet interval (4.6)
+ */
struct tfrc_tx_info {
__u32 tfrctx_x;
__u32 tfrctx_x_recv;