release/src-rt-6.x.4708/include/emf/igs/igsc.h

   1 /*
   2  * Copyright (C) 2012, Broadcom Corporation
   3  * All Rights Reserved.
   4  *
   5  * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Broadcom Corporation;
   6  * the contents of this file may not be disclosed to third parties, copied
   7  * or duplicated in any form, in whole or in part, without the prior
   8  * written permission of Broadcom Corporation.
   9  *
  10  * $Id: igsc.h 387069 2013-02-22 23:42:22Z $
  11  */
  12
  13 #ifndef _IGSC_H_
  14 #define _IGSC_H_
  15
  16 #define IGSDB_HASHT_SIZE                        8
  17
  18 #define IGMPV2_TYPE_OFFSET                      0
  19 #define IGMPV2_MAXRSP_TIME_OFFSET               1
  20 #define IGMPV2_CHECKSUM_OFFSET                  2
  21 #define IGMPV2_GRP_ADDR_OFFSET                  4
  22
  23 #define IGMPV2_HOST_MEMBERSHIP_QUERY            0x11
  24 #define IGMPV2_HOST_MEMBERSHIP_REPORT           0x12
  25 #define IGMPV2_HOST_NEW_MEMBERSHIP_REPORT       0x16
  26 #define IGMPV2_LEAVE_GROUP_MESSAGE              0x17
  27
  28 #define IGMPV2_QUERY_INTV                       130000
  29 #define IGMPV2_MAXRSP_TIME                      10000
  30 #define IGMPV2_ROBUSTNESS_VAR                   2
  31 #define IGMPV2_GRP_MEM_INTV                     ((IGMPV2_ROBUSTNESS_VAR * \
  32                                                  IGMPV2_QUERY_INTV) + IGMPV2_MAXRSP_TIME)
  33
  34 #define IPV4_MIN_HLEN                           20
  35 #define IGMP_HLEN                               8
  36 #define IPV4_LEN_OFFSET                         2
  37 #define IPV4_ID_OFFSET                          4
  38 #define IPV4_FRAG_OFFSET                        6
  39 #define IPV4_TTL_OFFSET                         8
  40 #define IPV4_MCADDR_ALLHOSTS                    (0xe0000001U)
  41 #define IP_ISMULTI(addr)                        (((addr) & 0xf0000000) == 0xe0000000)
  42
  43 #define IGSC_STATS_INCR(igsc, member)           (((igsc)->stats.member)++)
  44 #define IGSC_STATS_DECR(igsc, member)           (((igsc)->stats.member)--)
  45
  46 /*
  47  * IGMP Snooping Layer data
  48  */
  49 typedef struct igsc_info
  50 {
  51                                                 /* IGMP Snooping database */
  52         clist_head_t     mgrp_sdb[IGSDB_HASHT_SIZE];
  53         osl_lock_t       sdb_lock;              /* Lock for IGSDB access */
  54         struct emfc_info *emf_handle;           /* Handle for EMF interfaces */
  55         uint32           grp_mem_intv;          /* Group Membership interval */
  56         uint32           query_intv;            /* Query interval */
  57         void             *osh;                  /* OS Layer handle */
  58         void             *igs_info;             /* OS Specific IGS data */
  59         emfc_snooper_t   snooper;               /* Snooper data */
  60         igsc_wrapper_t   wrapper;               /* Wrapper data */
  61         clist_head_t     rtlist_head;           /* Router port list head */
  62         osl_lock_t       rtlist_lock;           /* Lock for router port list */
  63         igs_stats_t      stats;                 /* Multicast frames statistics */
  64 } igsc_info_t;
  65
  66 #define IGSC_INFO(s) ((igsc_info_t *)((char *)(s)-(unsigned long)(&((igsc_info_t *)0)->snooper)))
  67
  68 /*
  69  * Router port list entry
  70  */
  71 typedef struct igsc_rtlist
  72 {
  73         clist_head_t     list;                  /* Router port list prev and next */
  74         void             *ifp;                  /* Interface on which mcast router
  75                                                  * is seen.
  76                                                  */
  77         uint32           mr_ip;                 /* IP address of mcast router */
  78         osl_timer_t      *rtlist_timer;         /* Timer for router entry */
  79         igsc_info_t      *igsc_info;            /* IGSC Instance data */
  80 } igsc_rtlist_t;
  81
  82 typedef struct mc_grp_spl
  83 {
  84         uint32  addr;
  85         uint32  mask;
  86 } mc_grp_spl_t;
  87
  88 #define IGMPV3_HOST_MEMBERSHIP_REPORT   0x22    /* V3 version of 0x11 */
  89
  90 #define IGMPV3_MODE_IS_INCLUDE          1
  91 #define IGMPV3_MODE_IS_EXCLUDE          2
  92 #define IGMPV3_CHANGE_TO_INCLUDE        3
  93 #define IGMPV3_CHANGE_TO_EXCLUDE        4
  94 #define IGMPV3_ALLOW_NEW_SOURCES        5
  95 #define IGMPV3_BLOCK_OLD_SOURCES        6
  96
  97 typedef struct igmpv3_report {
  98         uint8 type;
  99         uint8 reserved1;
 100         uint16 checksum;
 101         uint16 reserved2;
 102         uint16 group_num;
 103 } igmpv3_report_t;
 104
 105
 106 typedef struct igmpv3_group {
 107         uint8 type;
 108         uint8 aux_len;
 109         uint16 src_num;
 110         uint32 mcast_addr;
 111 } igmpv3_group_t;
 112
 113 #define IGMPV3_SRC_ADDR_LEN     4
 114
 115
 116 #endif /* _IGSC_H_ */