openbcm

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tunnel.h (3421B)

      1 /*
      2  * 
      3  * This license is set out in https://raw.githubusercontent.com/Broadcom-Network-Switching-Software/OpenBCM/master/Legal/LICENSE file.
      4  * 
      5  * Copyright 2007-2020 Broadcom Inc. All rights reserved.
      6  *
      7  * File:        tunnel.h
      8  * Purpose:     tunnel internal definitions to the BCM library.
      9  */
     10 
     11 #ifndef   _BCM_INT_DPP_TUNNEL_H_
     12 #define   _BCM_INT_DPP_TUNNEL_H_
     13 
     14 
     15 /* tunnel subtype.
     16    For example, for a tunnel type bcmTunnelTypeL2gre, subtype l2gre_is_erspan indicate we're building an IP tunnel for ERPSAN
     17                                                       subtype none indicate we're building an L2gre tunnel  */
     18 typedef enum _bcm_tunnel_subtype_e {
     19     _bcm_tunnel_subtype_none = 0,
     20     _bcm_tunnel_subtype_l2gre_is_erspan = 1, /* IP_Tunnel.size will include erspan */
     21     _bcm_tunnel_subtype_gre_with_lb = 2      /* bcmTunnelTypeGreAnyIn4 will include LB key */
     22 } _bcm_tunnel_subtype_t;
     23 
     24 
     25 
     26 int _bcm_ip_tunnel_sw_init(int unit);
     27 int _bcm_ip_tunnel_sw_cleanup(int unit);
     28 
     29 int bcm_petra_tunnel_initiator_data_set(
     30     int unit, 
     31     bcm_l3_intf_t *intf, 
     32     bcm_tunnel_initiator_t *tunnel,
     33     int vsi_param,
     34     int ll_eep_param,
     35     int *tunnel_eep
     36     ); /* needed only in case intf is of type EEP */
     37 
     38 int 
     39 bcm_petra_data_entry_set(
     40     int unit,
     41     bcm_tunnel_initiator_t *tunnel);
     42 
     43 int 
     44 bcm_petra_data_entry_clear(
     45     int unit,
     46     bcm_l3_intf_t *intf);
     47 
     48 int
     49 _bcm_petra_tunnel_initiator_set(
     50     int unit, 
     51     bcm_l3_intf_t *intf, 
     52     bcm_tunnel_initiator_t *tunnel
     53     ); 
     54 
     55 int 
     56 _bcm_petra_tunnel_terminator_add(
     57     int unit, 
     58     bcm_tunnel_terminator_t *info) ;
     59 
     60 int
     61 _bcm_dpp_in_lif_tunnel_term_get(int unit, bcm_tunnel_terminator_t *tunnel_term, int lif);
     62 
     63 /* see _bcm_petra_tunnel_ipv4_type_to_ppd comments */
     64 int
     65 _bcm_petra_tunnel_ipv4_type_from_ppd(int unit, 
     66                                      SOC_PPC_EG_ENCAP_IPV4_ENCAP_INFO *ipv4_encap_info, 
     67                                      bcm_tunnel_type_t *tunnel_type, 
     68                                      _bcm_tunnel_subtype_t *tunnel_subtype);
     69 
     70 
     71 /*
     72  * setup template, encapsulation size and IP.protocol according to tunnel type
     73  * supported From jericho B0 / QAX
     74  */
     75 int
     76 _bcm_petra_tunnel_ipv4_type_to_ppd_template(int unit,
     77                                             bcm_tunnel_type_t tunnel_type,
     78                                             _bcm_tunnel_subtype_t tunnel_subtype,
     79                                             SOC_PPC_EG_ENCAP_IP_TUNNEL_SIZE_PROTOCOL_TEMPLATE_INFO *ip_tunnel_size_protocol_template);
     80 
     81 /* 
     82  * resolve the ppd tunnel type to use. 
     83  *  
     84  * For Jericho A0 and below, tunnel type is bcmTunnelType.
     85  * For Jericho B0 and above, tunnel type is composed of bcmTunnelType and tunnel_subtype. 
     86  * In most case there are no tunnel_subtype. 
     87  * Ex:  
     88  * For VxLAN:  bcmTunnelType: bcmTunnelTypeVxlan and tunnel_subtype: _bcm_tunnel_subtype_none
     89  * For Erspan: bcmTunnelType: bcmTunnelTypeL2Gre and tunnel_subtype: _bcm_tunnel_subtype_l2gre_is_erspan. 
     90  *             tunnel_subtype indicates that the IP_Tunnel.size should include erspan. 
     91  */   
     92 int 
     93 _bcm_petra_tunnel_ipv4_type_to_ppd(int unit, 
     94                                    bcm_tunnel_type_t tunnel_type, 
     95                                    _bcm_tunnel_subtype_t tunnel_subtype, 
     96                                    SOC_PPC_EG_ENCAP_IPV4_ENCAP_INFO *ipv4_encap_info, 
     97                                    uint32 is_replace); 
     98 
     99 #endif /* _BCM_INT_DPP_TUNNEL_H_ */