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/** \brief /** \brief Set or delete an NSH header entry keyed by NSP/NSI
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@param is_add - add address if non-zero, else delete
@param nsp_nsi - Key for nsh_header_t entry to map to. : 24bit NSP 8bit NSI
@param md_type - metadata type [1|2] - only MDType1 supported today
@param ver_o_c - version, O-bit and C-bit (see nsh_packet.h)
@param length - header length in n x 32bits, should be 6 for MDtype1
@param next_protocol - next protocol encapsulated behind NSH header: 1=Ethernet, 2=IP4, 3=IP6
@param c1 - 32bit Metadata type1 field (context1)
@param c2 - 32bit Metadata type1 field (context2)
@param c3 - 32bit Metadata type1 field (context3)
@param c4 - 32bit Metadata type1 field (context4)
@param tlvs - Metadata Type 2 only, Type Length Value metadata. Not currently supported
*/
define nsh_add_del_entry {
u32 client_index;
u32 context;
u8 is_add;
u32 nsp_nsi;
u8 md_type;
u8 ver_o_c;
u8 length;
u8 next_protocol;
u32 c1;
u32 c2;
u32 c3;
u32 c4;
u32 tlvs[0];
};
/** \brief Reply from adding NSH entry (nsh_add_del_entry)
@param context - sender context, to match reply w/ request
@param retval - 0 means all ok
*/
define nsh_add_del_entry_reply {
u32 context;
i32 retval;
};
/** \brief Set or delete a mapping from one NSH header to another and its egress (decap to inner packet, encap NSH with outer header)
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@param is_add - add address if non-zero, else delete
@param nsh_nsi - Key for nsh_header_t entry to map to. : 24bit NSP 8bit NSI
@param mapped_nsp_nsi - Key for nsh_header_t entry to map to. : 24bit NSP 8bit NSI this may be ~0
if next action is to decap to NSH next protocol
Note the following heuristic:
- if nsp_nsi == mapped_nsp_nsi then use-case is like SFC SFF
- if nsp_nsi != mapped_nsp_nsi then use-case is like SFC SF
Note: these are heuristics. Rules about NSI decrement are out of scope
@param sw_if_index - index number of outer encap for NSH egress
@param next_node - explicitly which node to send to
Note the above parameters are instantiated by "encap-gre-intf <x>" means sw_if_index x, next_node gre-input
*/
define nsh_add_del_map {
u32 client_index;
u32 context;
u8 is_add;
u32 nsp_nsi;
u32 mapped_nsp_nsi;
u32 sw_if_index;
u32 next_node;
};
/** \brief Reply from adding NSH map (nsh_add_del_map)
@param context - sender context, to match reply w/ request
@param retval - 0 means all ok
*/
define nsh_add_del_map_reply {
u32 context;
i32 retval;
};
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