537 	req->mtu = sys_cpu_to_le16(ch->rx.mtu);  in l2cap_le_conn_req()
577 	req->mtu = sys_cpu_to_le16(ch->rx.mtu);  in l2cap_ecred_conn_req()
581 	req_mtu = ch->tx.mtu;  in l2cap_ecred_conn_req()
588 		__ASSERT(ch->tx.mtu == req_mtu,  in l2cap_ecred_conn_req()
589 			 "The MTU shall be the same for channels in the same request.");  in l2cap_ecred_conn_req()
1221 	/* Use existing MTU if defined */  in l2cap_chan_rx_init()
1222 	if (!chan->rx.mtu) {  in l2cap_chan_rx_init()
1223 		/* If application has not provide the incoming L2CAP SDU MTU use  in l2cap_chan_rx_init()
1224 		 * an MTU that does not require segmentation.  in l2cap_chan_rx_init()
1226 		chan->rx.mtu = BT_L2CAP_SDU_RX_MTU;  in l2cap_chan_rx_init()
1229 	/* MPS shall not be bigger than MTU + BT_L2CAP_SDU_HDR_SIZE as the  in l2cap_chan_rx_init()
1232 	chan->rx.mps = MIN(chan->rx.mtu + BT_L2CAP_SDU_HDR_SIZE,  in l2cap_chan_rx_init()
1235 	/* Truncate MTU if channel have disabled segmentation but still have  in l2cap_chan_rx_init()
1236 	 * set an MTU which requires it.  in l2cap_chan_rx_init()
1239 	    (chan->rx.mps < chan->rx.mtu + BT_L2CAP_SDU_HDR_SIZE)) {  in l2cap_chan_rx_init()
1240 		LOG_WRN("Segmentation disabled but MTU > MPS, truncating MTU");  in l2cap_chan_rx_init()
1241 		chan->rx.mtu = chan->rx.mps - BT_L2CAP_SDU_HDR_SIZE;  in l2cap_chan_rx_init()
1347 			       uint16_t mtu, uint16_t mps, uint16_t credits,  in l2cap_chan_accept()  argument
1396 	le_chan->tx.mtu = mtu;  in l2cap_chan_accept()
1447 	uint16_t psm, scid, mtu, mps, credits;  in le_conn_req()  local
1457 	mtu = sys_le16_to_cpu(req->mtu);  in le_conn_req()
1461 	LOG_DBG("psm 0x%02x scid 0x%04x mtu %u mps %u credits %u", psm, scid, mtu, mps, credits);  in le_conn_req()
1463 	if (mtu < L2CAP_LE_MIN_MTU || mps < L2CAP_LE_MIN_MTU) {  in le_conn_req()
1464 		LOG_ERR("Invalid LE-Conn Req params: mtu %u mps %u", mtu, mps);  in le_conn_req()
1490 	result = l2cap_chan_accept(conn, server, scid, mtu, mps, credits,  in le_conn_req()
1501 	rsp->mtu = sys_cpu_to_le16(le_chan->rx.mtu);  in le_conn_req()
1529 	uint16_t mtu, mps, credits, result = BT_L2CAP_LE_SUCCESS;  in le_ecred_conn_req()  local
1556 	mtu = sys_le16_to_cpu(req->mtu);  in le_ecred_conn_req()
1560 	LOG_DBG("psm 0x%02x mtu %u mps %u credits %u", psm, mtu, mps, credits);  in le_ecred_conn_req()
1562 	if (mtu < BT_L2CAP_ECRED_MIN_MTU || mps < BT_L2CAP_ECRED_MIN_MTU) {  in le_ecred_conn_req()
1563 		LOG_ERR("Invalid ecred conn req params. mtu %u mps %u", mtu, mps);  in le_ecred_conn_req()
1585 		rc = l2cap_chan_accept(conn, server, scid, mtu, mps,  in le_ecred_conn_req()
1621 		rsp->mtu = sys_cpu_to_le16(ch->rx.mtu);  in le_ecred_conn_req()
1655 	uint16_t mtu, mps;  in le_ecred_reconf_req()  local
1667 	mtu = sys_le16_to_cpu(req->mtu);  in le_ecred_reconf_req()
1675 	if (mtu < BT_L2CAP_ECRED_MIN_MTU) {  in le_ecred_reconf_req()
1695 		if (BT_L2CAP_LE_CHAN(chan)->tx.mtu > mtu) {  in le_ecred_reconf_req()
1696 			LOG_ERR("chan %p decreased MTU %u -> %u", chan,  in le_ecred_reconf_req()
1697 				BT_L2CAP_LE_CHAN(chan)->tx.mtu, mtu);  in le_ecred_reconf_req()
1720 		BT_L2CAP_LE_CHAN(chans[i])->tx.mtu = mtu;  in le_ecred_reconf_req()
1728 	LOG_DBG("mtu %u mps %u", mtu, mps);  in le_ecred_reconf_req()
1767 			ch->rx.mtu = ch->pending_rx_mtu;  in le_ecred_reconf_rsp()
1899 	uint16_t dcid, mtu, mps, credits, result, psm;  in le_ecred_conn_rsp()  local
1909 	mtu = sys_le16_to_cpu(rsp->mtu);  in le_ecred_conn_rsp()
1914 	LOG_DBG("mtu 0x%04x mps 0x%04x credits 0x%04x result %u", mtu, mps, credits, result);  in le_ecred_conn_rsp()
1992 			chan->tx.mtu = mtu;  in le_ecred_conn_rsp()
2029 	uint16_t dcid, mtu, mps, credits, result;  in le_conn_rsp()  local
2037 	mtu = sys_le16_to_cpu(rsp->mtu);  in le_conn_rsp()
2042 	LOG_DBG("dcid 0x%04x mtu %u mps %u credits %u result 0x%04x", dcid, mtu, mps, credits,  in le_conn_rsp()
2068 		chan->tx.mtu = mtu;  in le_conn_rsp()
2546 		if (chan->_sdu_len > chan->rx.mtu) {  in l2cap_chan_le_recv_seg_direct()
2547 			LOG_WRN("SDU exceeds MTU");  in l2cap_chan_le_recv_seg_direct()
2613 	if (sdu_len > chan->rx.mtu) {  in l2cap_chan_le_recv()
2897 	LOG_DBG("ch %p psm 0x%02x mtu %u mps %u credits 1", ch, ch->psm, ch->rx.mtu, ch->rx.mps);  in l2cap_ecred_init()
2953 int bt_l2cap_ecred_chan_reconfigure(struct bt_l2cap_chan **chans, uint16_t mtu)  in bt_l2cap_ecred_chan_reconfigure()  argument
2962 	LOG_DBG("chans %p mtu 0x%04x", chans, mtu);  in bt_l2cap_ecred_chan_reconfigure()
2982 		/* validate MTU is not decreased */  in bt_l2cap_ecred_chan_reconfigure()
2983 		if (mtu < BT_L2CAP_LE_CHAN(chans[i])->rx.mtu) {  in bt_l2cap_ecred_chan_reconfigure()
3015 	req->mtu = sys_cpu_to_le16(mtu);  in bt_l2cap_ecred_chan_reconfigure()
3017 	/* MPS shall not be bigger than MTU + BT_L2CAP_SDU_HDR_SIZE  in bt_l2cap_ecred_chan_reconfigure()
3020 	req->mps = sys_cpu_to_le16(MIN(mtu + BT_L2CAP_SDU_HDR_SIZE,  in bt_l2cap_ecred_chan_reconfigure()
3027 		ch->pending_rx_mtu = mtu;  in bt_l2cap_ecred_chan_reconfigure()
3043 					     uint16_t mtu, uint16_t mps)  in bt_l2cap_ecred_chan_reconfigure_explicit()  argument
3050 	LOG_DBG("chans %p chan_count %u mtu 0x%04x mps 0x%04x", chans, chan_count, mtu, mps);  in bt_l2cap_ecred_chan_reconfigure_explicit()
3070 		/* validate MTU is not decreased */  in bt_l2cap_ecred_chan_reconfigure_explicit()
3071 		if (mtu < BT_L2CAP_LE_CHAN(chans[i])->rx.mtu) {  in bt_l2cap_ecred_chan_reconfigure_explicit()
3105 	req->mtu = sys_cpu_to_le16(mtu);  in bt_l2cap_ecred_chan_reconfigure_explicit()
3114 		ch->pending_rx_mtu = mtu;  in bt_l2cap_ecred_chan_reconfigure_explicit()
3221 	if (sdu_len > le_chan->tx.mtu) {  in bt_l2cap_dyn_chan_send()
3222 		LOG_ERR("attempt to send %u bytes on %u MTU chan",  in bt_l2cap_dyn_chan_send()
3223 			sdu_len, le_chan->tx.mtu);  in bt_l2cap_dyn_chan_send()