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Commit 44dd46de authored by Marcel Holtmann's avatar Marcel Holtmann
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Bluetooth: Add module option to enable L2CAP ERTM support 



Since the Enhanced Retransmission mode for L2CAP is still under heavy
development disable it by default and provide a module option to enable
it manually for testing.

Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 52d18347

net/bluetooth/l2cap.c

+10 −2
Original line number Diff line number Diff line
@@ -50,7 +50,9 @@ 
#include <net/bluetooth/hci_core.h>

#include <net/bluetooth/l2cap.h>



#define VERSION "2.13"

#define VERSION "2.14"



static int enable_ertm = 0;



static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN;

static u8 l2cap_fixed_chan[8] = { 0x02, };
@@ -2205,10 +2207,13 @@ static inline int l2cap_information_req(struct l2cap_conn *conn, struct l2cap_cm 


	if (type == L2CAP_IT_FEAT_MASK) {

		u8 buf[8];

		u32 feat_mask = l2cap_feat_mask;

		struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) buf;

		rsp->type   = cpu_to_le16(L2CAP_IT_FEAT_MASK);

		rsp->result = cpu_to_le16(L2CAP_IR_SUCCESS);

		put_unaligned(cpu_to_le32(l2cap_feat_mask), (__le32 *) rsp->data);

		if (enable_ertm)

			feat_mask |= L2CAP_FEAT_ERTM;

		put_unaligned(cpu_to_le32(feat_mask), (__le32 *) rsp->data);

		l2cap_send_cmd(conn, cmd->ident,

					L2CAP_INFO_RSP, sizeof(buf), buf);

	} else if (type == L2CAP_IT_FIXED_CHAN) {
@@ -2828,6 +2833,9 @@ EXPORT_SYMBOL(l2cap_load); 
module_init(l2cap_init);

module_exit(l2cap_exit);



module_param(enable_ertm, bool, 0644);

MODULE_PARM_DESC(enable_ertm, "Enable enhanced retransmission mode");



MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");

MODULE_DESCRIPTION("Bluetooth L2CAP ver " VERSION);

MODULE_VERSION(VERSION);