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/*-
* Copyright (c) 2007, 2009 Kip Macy <kmacy@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: release/9.1.0/sys/dev/cxgb/sys/mvec.h 237920 2012-07-01 12:00:36Z np $
*
*/
#ifndef _MVEC_H_
#define _MVEC_H_
#include <machine/bus.h>
static __inline void
busdma_map_mbuf_fast(bus_dma_tag_t tag, bus_dmamap_t map,
struct mbuf *m, bus_dma_segment_t *seg)
{
#if defined(__i386__) || defined(__amd64__)
seg->ds_addr = pmap_kextract(mtod(m, vm_offset_t));
seg->ds_len = m->m_len;
#else
int nsegstmp;
bus_dmamap_load_mbuf_sg(tag, map, m, seg, &nsegstmp, 0);
#endif
}
int busdma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
struct mbuf **m, bus_dma_segment_t *segs, int *nsegs);
void busdma_map_sg_vec(bus_dma_tag_t tag, bus_dmamap_t map,
struct mbuf *m, bus_dma_segment_t *segs, int *nsegs);
static __inline void
m_freem_list(struct mbuf *m)
{
struct mbuf *n;
while (m != NULL) {
n = m->m_nextpkt;
if (n != NULL)
prefetch(n);
m_freem(m);
m = n;
}
}
#endif /* _MVEC_H_ */