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 | |
69 | static inline struct can_ml_priv *can_get_ml_priv(struct net_device *dev) |
70 | { |
71 | return netdev_get_ml_priv(dev, type: ML_PRIV_CAN); |
72 | } |
73 | |
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, type: ML_PRIV_CAN); |
78 | } |
79 | |
80 | #endif /* CAN_ML_H */ |
81 | |