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authorGustavo F. Padovan <gustavo@las.ic.unicamp.br>2009-10-03 01:34:38 -0400
committerMarcel Holtmann <marcel@holtmann.org>2009-12-03 13:34:23 -0500
commit9f121a5a80b4417c6db5a35e26d2e79c29c3fc0d (patch)
tree8e01df10e3e640c0f76b4c3f380db351543900bb /include/net
parent889a3ca466018ab68363c3168993793bc2d984f1 (diff)
Bluetooth: Fix sending ReqSeq on I-frames
As specified by ERTM spec an ERTM channel can acknowledge received I-frames(the data frames) by sending an I-frame with the proper ReqSeq value (i.e. ReqSeq is set to BufferSeq). Until now we aren't setting the ReqSeq value on I-frame control bits. That way we can save sending S-frames(Supervise frames) only to acknowledge receipt of I-frames. It is very helpful to the full-duplex channel. ReqSeq is the packet sequence number sent in an acknowledgement frame to acknowledge receipt of frames up to (ReqSeq - 1). BufferSeq controls the receiver buffer, it is used to delay acknowledgement of new frames to not cause buffer overflow. BufferSeq value is not increased until frames are pulled by reassembly function. Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/bluetooth/l2cap.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 9516f4b4a3c2..327eb57dab51 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -324,7 +324,6 @@ struct l2cap_pinfo {
324 324
325 __u8 next_tx_seq; 325 __u8 next_tx_seq;
326 __u8 expected_ack_seq; 326 __u8 expected_ack_seq;
327 __u8 req_seq;
328 __u8 expected_tx_seq; 327 __u8 expected_tx_seq;
329 __u8 buffer_seq; 328 __u8 buffer_seq;
330 __u8 buffer_seq_srej; 329 __u8 buffer_seq_srej;