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Bluetooth: Initial support for retransmission of packets with REJ frames

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When receiving an I-frame with unexpected txSeq, receiver side start the
recovery procedure by sending a REJ S-frame to the transmitter side. So
the transmitter can re-send the lost I-frame.

This patch just adds a basic support for retransmission, it doesn't
mean that ERTM now has full support for packet retransmission.

Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Gustavo F. Padovan
2009-08-20 22:25:59 -03:00
committed by Marcel Holtmann
parent c74e560cd0
commit 30afb5b2aa
2 changed files with 44 additions and 14 deletions
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include/net/bluetooth/l2cap.h
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@@ -351,6 +351,7 @@ struct l2cap_pinfo {
#define L2CAP_CONF_MAX_CONF_RSP 2
#define L2CAP_CONN_SAR_SDU 0x01
#define L2CAP_CONN_UNDER_REJ 0x02
static inline int l2cap_tx_window_full(struct sock *sk)
{