git://bbs.cooldavid.org / net-next-2.6.git / blame
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| 0d66548a OH |
1 | /* |
| 2 | * Copyright (c) 2002-2007 Volkswagen Group Electronic Research | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * 3. Neither the name of Volkswagen nor the names of its contributors | |
| 14 | * may be used to endorse or promote products derived from this software | |
| 15 | * without specific prior written permission. | |
| 16 | * | |
| 17 | * Alternatively, provided that this notice is retained in full, this | |
| 18 | * software may be distributed under the terms of the GNU General | |
| 19 | * Public License ("GPL") version 2, in which case the provisions of the | |
| 20 | * GPL apply INSTEAD OF those given above. | |
| 21 | * | |
| 22 | * The provided data structures and external interfaces from this code | |
| 23 | * are not restricted to be used by modules with a GPL compatible license. | |
| 24 | * | |
| 25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 26 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 27 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 28 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 29 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 30 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 31 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 32 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 33 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 34 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 35 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | |
| 36 | * DAMAGE. | |
| 37 | * | |
| 38 | * Send feedback to <socketcan-users@lists.berlios.de> | |
| 39 | * | |
| 40 | */ | |
| 41 | ||
| 42 | #ifndef AF_CAN_H | |
| 43 | #define AF_CAN_H | |
| 44 | ||
| 45 | #include <linux/skbuff.h> | |
| 46 | #include <linux/netdevice.h> | |
| 47 | #include <linux/list.h> | |
| 48 | #include <linux/rcupdate.h> | |
| 49 | #include <linux/can.h> | |
| 50 | ||
| 51 | /* af_can rx dispatcher structures */ | |
| 52 | ||
| 53 | struct receiver { | |
| 54 | struct hlist_node list; | |
| 55 | struct rcu_head rcu; | |
| 56 | canid_t can_id; | |
| 57 | canid_t mask; | |
| 58 | unsigned long matches; | |
| 59 | void (*func)(struct sk_buff *, void *); | |
| 60 | void *data; | |
| 61 | char *ident; | |
| 62 | }; | |
| 63 | ||
| 64 | enum { RX_ERR, RX_ALL, RX_FIL, RX_INV, RX_EFF, RX_MAX }; | |
| 65 | ||
| 20dd3850 | 66 | /* per device receive filters linked at dev->ml_priv */ |
| 0d66548a | 67 | struct dev_rcv_lists { |
| 0d66548a OH |
68 | struct hlist_head rx[RX_MAX]; |
| 69 | struct hlist_head rx_sff[0x800]; | |
| 70 | int remove_on_zero_entries; | |
| 71 | int entries; | |
| 72 | }; | |
| 73 | ||
| 74 | /* statistic structures */ | |
| 75 | ||
| 76 | /* can be reset e.g. by can_init_stats() */ | |
| 77 | struct s_stats { | |
| 78 | unsigned long jiffies_init; | |
| 79 | ||
| 80 | unsigned long rx_frames; | |
| 81 | unsigned long tx_frames; | |
| 82 | unsigned long matches; | |
| 83 | ||
| 84 | unsigned long total_rx_rate; | |
| 85 | unsigned long total_tx_rate; | |
| 86 | unsigned long total_rx_match_ratio; | |
| 87 | ||
| 88 | unsigned long current_rx_rate; | |
| 89 | unsigned long current_tx_rate; | |
| 90 | unsigned long current_rx_match_ratio; | |
| 91 | ||
| 92 | unsigned long max_rx_rate; | |
| 93 | unsigned long max_tx_rate; | |
| 94 | unsigned long max_rx_match_ratio; | |
| 95 | ||
| 96 | unsigned long rx_frames_delta; | |
| 97 | unsigned long tx_frames_delta; | |
| 98 | unsigned long matches_delta; | |
| 99 | }; | |
| 100 | ||
| 101 | /* persistent statistics */ | |
| 102 | struct s_pstats { | |
| 103 | unsigned long stats_reset; | |
| 104 | unsigned long user_reset; | |
| 105 | unsigned long rcv_entries; | |
| 106 | unsigned long rcv_entries_max; | |
| 107 | }; | |
| 108 | ||
| 109 | /* function prototypes for the CAN networklayer procfs (proc.c) */ | |
| 110 | extern void can_init_proc(void); | |
| 111 | extern void can_remove_proc(void); | |
| 112 | extern void can_stat_update(unsigned long data); | |
| 113 | ||
| 114 | /* structures and variables from af_can.c needed in proc.c for reading */ | |
| 115 | extern struct timer_list can_stattimer; /* timer for statistics update */ | |
| 116 | extern struct s_stats can_stats; /* packet statistics */ | |
| 117 | extern struct s_pstats can_pstats; /* receive list statistics */ | |
| 118 | extern struct hlist_head can_rx_dev_list; /* rx dispatcher structures */ | |
| 119 | ||
| 120 | #endif /* AF_CAN_H */ |