debuggers.hg

view netbsd-2.0-xen-sparse/sys/arch/xen/include/if_xennetvar.h @ 2632:a4fbb98f00cb

bitkeeper revision 1.1159.1.202 (41616cc2-ciBh_VkJKwmQaCL6BEU6Q)

Merge labyrinth.cl.cam.ac.uk:/auto/groups/xeno/BK/xeno.bk
into labyrinth.cl.cam.ac.uk:/auto/anfs/scratch/labyrinth/iap10/xeno-clone/xeno.bk
author iap10@labyrinth.cl.cam.ac.uk
date Mon Oct 04 15:31:14 2004 +0000 (2004-10-04)
parents 309c1fb27f87 aa75f00efa54
children 322541dd9041 fb095fda8aa2
line source
1 /* $NetBSD: if_xennetvar.h,v 1.1.2.1 2004/05/22 15:59:31 he Exp $ */
3 /*
4 *
5 * Copyright (c) 2004 Christian Limpach.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by Christian Limpach.
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
35 #ifndef _XEN_IF_XENNETVAR_H_
36 #define _XEN_IF_XENNETVAR_H_
38 #include <machine/xen.h>
40 union xennet_bufarray {
41 struct {
42 struct mbuf *xbtx_m;
43 } xb_tx;
44 struct {
45 vaddr_t xbrx_va;
46 paddr_t xbrx_pa;
47 struct xennet_softc *xbrx_sc;
48 } xb_rx;
49 int xb_next;
50 };
52 struct xennet_txbuf {
53 SLIST_ENTRY(xennet_txbuf) xt_next;
54 struct xennet_softc *xt_sc;
55 paddr_t xt_pa;
56 u_char xt_buf[0];
57 };
58 #define TXBUF_PER_PAGE 2
59 #define TXBUF_BUFSIZE (PAGE_SIZE / TXBUF_PER_PAGE) - sizeof(struct xennet_txbuf)
61 struct xennet_softc {
62 struct device sc_dev; /* base device glue */
63 struct ethercom sc_ethercom; /* Ethernet common part */
65 int sc_ifno;
67 uint8_t sc_enaddr[6];
69 #ifdef mediacode
70 struct ifmedia sc_media;
71 #endif
73 /* What is the status of our connection to the remote backend? */
74 #define BEST_CLOSED 0
75 #define BEST_DISCONNECTED 1
76 #define BEST_CONNECTED 2
77 unsigned int sc_backend_state;
79 unsigned int sc_evtchn;
80 unsigned int sc_irq;
82 netif_tx_interface_t *sc_tx;
83 netif_rx_interface_t *sc_rx;
84 struct vm_page *sc_pg_tx;
85 struct vm_page *sc_pg_rx;
87 uint32_t sc_tx_entries;
88 uint32_t sc_tx_resp_cons;
90 uint32_t sc_rx_resp_cons;
91 uint32_t sc_rx_bufs_to_notify;
93 union xennet_bufarray sc_tx_bufa[NETIF_TX_RING_SIZE];
94 union xennet_bufarray sc_rx_bufa[NETIF_TX_RING_SIZE];
96 SLIST_HEAD(, xennet_txbuf) sc_tx_bufs;
97 };
99 struct xennet_attach_args {
100 const char *xa_device;
101 int xa_handle;
102 };
104 struct nfs_diskless;
106 int xennet_scan(struct device *, struct xennet_attach_args *, cfprint_t);
107 void xennet_scan_finish(struct device *);
108 void xennet_start(struct ifnet *);
109 int xennet_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
110 void xennet_watchdog(struct ifnet *ifp);
111 int xennet_bootstatic_callback(struct nfs_diskless *);
113 #endif /* _XEN_IF_XENNETVAR_H_ */