18e0ad55aSJoel Dahl /*-
24d846d26SWarner Losh * SPDX-License-Identifier: BSD-2-Clause
3718cf2ccSPedro F. Giffuni *
48e0ad55aSJoel Dahl * Copyright (c) 2007, 2009 Kip Macy <kmacy@freebsd.org>
5a8d9a363SKip Macy * All rights reserved.
6a8d9a363SKip Macy *
7a8d9a363SKip Macy * Redistribution and use in source and binary forms, with or without
88e0ad55aSJoel Dahl * modification, are permitted provided that the following conditions
98e0ad55aSJoel Dahl * are met:
108e0ad55aSJoel Dahl * 1. Redistributions of source code must retain the above copyright
118e0ad55aSJoel Dahl * notice, this list of conditions and the following disclaimer.
128e0ad55aSJoel Dahl * 2. Redistributions in binary form must reproduce the above copyright
138e0ad55aSJoel Dahl * notice, this list of conditions and the following disclaimer in the
148e0ad55aSJoel Dahl * documentation and/or other materials provided with the distribution.
15a8d9a363SKip Macy *
168e0ad55aSJoel Dahl * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
178e0ad55aSJoel Dahl * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18a8d9a363SKip Macy * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
198e0ad55aSJoel Dahl * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
208e0ad55aSJoel Dahl * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
218e0ad55aSJoel Dahl * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
228e0ad55aSJoel Dahl * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
238e0ad55aSJoel Dahl * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
248e0ad55aSJoel Dahl * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
258e0ad55aSJoel Dahl * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
268e0ad55aSJoel Dahl * SUCH DAMAGE.
27a8d9a363SKip Macy *
288e0ad55aSJoel Dahl */
29a8d9a363SKip Macy
30db2faf11SKip Macy #ifndef _MVEC_H_
31db2faf11SKip Macy #define _MVEC_H_
328e10660fSKip Macy #include <machine/bus.h>
33db2faf11SKip Macy
34fd3e7902SNavdeep Parhar int busdma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
353f345a5dSKip Macy struct mbuf **m, bus_dma_segment_t *segs, int *nsegs);
36fd3e7902SNavdeep Parhar void busdma_map_sg_vec(bus_dma_tag_t tag, bus_dmamap_t map,
3775417d6dSKip Macy struct mbuf *m, bus_dma_segment_t *segs, int *nsegs);
38501e1590SKip Macy
39501e1590SKip Macy static __inline void
m_freem_list(struct mbuf * m)403f345a5dSKip Macy m_freem_list(struct mbuf *m)
418e10660fSKip Macy {
423f345a5dSKip Macy struct mbuf *n;
438e10660fSKip Macy
443f345a5dSKip Macy while (m != NULL) {
453f345a5dSKip Macy n = m->m_nextpkt;
463f345a5dSKip Macy if (n != NULL)
473f345a5dSKip Macy prefetch(n);
483f345a5dSKip Macy m_freem(m);
493f345a5dSKip Macy m = n;
50501e1590SKip Macy }
51a8d9a363SKip Macy }
52db2faf11SKip Macy
53501e1590SKip Macy #endif /* _MVEC_H_ */
54