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buf_ring.h (185543) buf_ring.h (186207)
1/**************************************************************************
2 *
3 * Copyright (c) 2007,2008 Kip Macy kmacy@freebsd.org
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *

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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
1/**************************************************************************
2 *
3 * Copyright (c) 2007,2008 Kip Macy kmacy@freebsd.org
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *

--- 11 unchanged lines hidden (view full) ---

20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/sys/buf_ring.h 185543 2008-12-02 03:58:10Z kmacy $
28 * $FreeBSD: head/sys/sys/buf_ring.h 186207 2008-12-17 04:00:43Z kmacy $
29 *
30 ***************************************************************************/
31
32#ifndef _SYS_BUF_RING_H_
33#define _SYS_BUF_RING_H_
34
35#include <machine/cpu.h>
36

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43#include <sys/mutex.h>
44#endif
45
46struct buf_ring {
47 volatile uint32_t br_prod_head;
48 volatile uint32_t br_prod_tail;
49 int br_prod_size;
50 int br_prod_mask;
29 *
30 ***************************************************************************/
31
32#ifndef _SYS_BUF_RING_H_
33#define _SYS_BUF_RING_H_
34
35#include <machine/cpu.h>
36

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43#include <sys/mutex.h>
44#endif
45
46struct buf_ring {
47 volatile uint32_t br_prod_head;
48 volatile uint32_t br_prod_tail;
49 int br_prod_size;
50 int br_prod_mask;
51 uint64_t br_drops;
51 /*
52 * Pad out to next L2 cache line
53 */
52 /*
53 * Pad out to next L2 cache line
54 */
54 uint64_t _pad0[14];
55 uint64_t _pad0[13];
55
56 volatile uint32_t br_cons_head;
57 volatile uint32_t br_cons_tail;
58 int br_cons_size;
59 int br_cons_mask;
60
61 /*
62 * Pad out to next L2 cache line

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57 volatile uint32_t br_cons_head;
58 volatile uint32_t br_cons_tail;
59 int br_cons_size;
60 int br_cons_mask;
61
62 /*
63 * Pad out to next L2 cache line

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