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-rw-r--r--Documentation/networking/dccp.txt10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/networking/dccp.txt b/Documentation/networking/dccp.txt
index 387482e46c47..4504cc59e405 100644
--- a/Documentation/networking/dccp.txt
+++ b/Documentation/networking/dccp.txt
@@ -57,6 +57,16 @@ DCCP_SOCKOPT_SEND_CSCOV is for the receiver and has a different meaning: it
57 coverage value are also acceptable. The higher the number, the more 57 coverage value are also acceptable. The higher the number, the more
58 restrictive this setting (see [RFC 4340, sec. 9.2.1]). 58 restrictive this setting (see [RFC 4340, sec. 9.2.1]).
59 59
60The following two options apply to CCID 3 exclusively and are getsockopt()-only.
61In either case, a TFRC info struct (defined in <linux/tfrc.h>) is returned.
62DCCP_SOCKOPT_CCID_RX_INFO
63 Returns a `struct tfrc_rx_info' in optval; the buffer for optval and
64 optlen must be set to at least sizeof(struct tfrc_rx_info).
65DCCP_SOCKOPT_CCID_TX_INFO
66 Returns a `struct tfrc_tx_info' in optval; the buffer for optval and
67 optlen must be set to at least sizeof(struct tfrc_tx_info).
68
69
60Sysctl variables 70Sysctl variables
61================ 71================
62Several DCCP default parameters can be managed by the following sysctls 72Several DCCP default parameters can be managed by the following sysctls