xref: /f-stack/lib/ff_veth.h (revision 8d76b62e)
1 /*
2  * Copyright (C) 2017 THL A29 Limited, a Tencent company.
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 are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice, this
9  *   list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright notice,
11  *   this list of conditions and the following disclaimer in the documentation
12  *   and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
18  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
23  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  *
25  */
26 
27 #ifndef _FSTACK_VETH_H
28 #define _FSTACK_VETH_H
29 
30 struct ff_port_cfg;
31 void *ff_veth_attach(struct ff_port_cfg *cfg);
32 int ff_veth_detach(void *arg);
33 
34 void *ff_mbuf_gethdr(void *pkt, uint16_t total, void *data,
35     uint16_t len, uint8_t rx_csum);
36 void *ff_mbuf_get(void *p, void *m, void *data, uint16_t len);
37 void ff_mbuf_free(void *m);
38 
39 int ff_mbuf_copydata(void *m, void *data, int off, int len);
40 int ff_next_mbuf(void **mbuf_bsd, void **data, unsigned *len);
41 void* ff_mbuf_mtod(void* bsd_mbuf);
42 void* ff_rte_frm_extcl(void* mbuf);
43 
44 struct ff_tx_offload;
45 void ff_mbuf_tx_offload(void *m, struct ff_tx_offload *offload);
46 
47 void ff_veth_process_packet(void *arg, void *m);
48 
49 void *ff_veth_softc_to_hostc(void *softc);
50 
51 void ff_mbuf_set_vlan_info(void *hdr, uint16_t vlan_tci);
52 
53 #endif /* ifndef _FSTACK_VETH_H */
54