Bluetooth: Add RFCOMM option to use L2CAP ERTM mode
By default the RFCOMM layer would still use L2CAP basic mode. For testing
purposes this option enables RFCOMM to select enhanced retransmission
mode.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 25692bc..fc5ee32 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -51,6 +51,7 @@
static int disable_cfc = 0;
static int channel_mtu = -1;
static unsigned int l2cap_mtu = RFCOMM_MAX_L2CAP_MTU;
+static int l2cap_ertm = 0;
static struct task_struct *rfcomm_thread;
@@ -702,6 +703,8 @@
sk = sock->sk;
lock_sock(sk);
l2cap_pi(sk)->imtu = l2cap_mtu;
+ if (l2cap_ertm)
+ l2cap_pi(sk)->mode = L2CAP_MODE_ERTM;
release_sock(sk);
s = rfcomm_session_add(sock, BT_BOUND);
@@ -2185,6 +2188,9 @@
module_param(l2cap_mtu, uint, 0644);
MODULE_PARM_DESC(l2cap_mtu, "Default MTU for the L2CAP connection");
+module_param(l2cap_ertm, bool, 0644);
+MODULE_PARM_DESC(l2cap_ertm, "Use L2CAP ERTM mode for connection");
+
MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Bluetooth RFCOMM ver " VERSION);
MODULE_VERSION(VERSION);