1 /* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ 2 /* Copyright (c) 2002-2007 Volkswagen Group Electronic Research 3 * Copyright (c) 2017 Pengutronix, Marc Kleine-Budde <kernel@pengutronix.de> 4 * 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of Volkswagen nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * Alternatively, provided that this notice is retained in full, this 20 * software may be distributed under the terms of the GNU General 21 * Public License ("GPL") version 2, in which case the provisions of the 22 * GPL apply INSTEAD OF those given above. 23 * 24 * The provided data structures and external interfaces from this code 25 * are not restricted to be used by modules with a GPL compatible license. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 32 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 33 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 34 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 35 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 36 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 37 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 38 * DAMAGE. 39 * 40 */ 41 42 #ifndef CAN_ML_H 43 #define CAN_ML_H 44 45 #include <linux/can.h> 46 #include <linux/list.h> 47 #include <linux/netdevice.h> 48 49 #define CAN_SFF_RCV_ARRAY_SZ (1 << CAN_SFF_ID_BITS) 50 #define CAN_EFF_RCV_HASH_BITS 10 51 #define CAN_EFF_RCV_ARRAY_SZ (1 << CAN_EFF_RCV_HASH_BITS) 52 53 enum { RX_ERR, RX_ALL, RX_FIL, RX_INV, RX_MAX }; 54 55 struct can_dev_rcv_lists { 56 struct hlist_head rx[RX_MAX]; 57 struct hlist_head rx_sff[CAN_SFF_RCV_ARRAY_SZ]; 58 struct hlist_head rx_eff[CAN_EFF_RCV_ARRAY_SZ]; 59 int entries; 60 }; 61 62 struct can_ml_priv { 63 struct can_dev_rcv_lists dev_rcv_lists; 64 #ifdef CAN_J1939 65 struct j1939_priv *j1939_priv; 66 #endif 67 }; 68 can_get_ml_priv(struct net_device * dev)69 static inline struct can_ml_priv *can_get_ml_priv(struct net_device *dev) 70 { 71 return netdev_get_ml_priv(dev, ML_PRIV_CAN); 72 } 73 can_set_ml_priv(struct net_device * dev,struct can_ml_priv * ml_priv)74 static inline void can_set_ml_priv(struct net_device *dev, 75 struct can_ml_priv *ml_priv) 76 { 77 netdev_set_ml_priv(dev, ml_priv, ML_PRIV_CAN); 78 } 79 80 #endif /* CAN_ML_H */ 81