104 lines
3.2 KiB
C
104 lines
3.2 KiB
C
/* $NetBSD: if_xennetvar.h,v 1.3 2004/09/15 04:55:21 tls Exp $ */
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/*
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*
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* Copyright (c) 2004 Christian Limpach.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christian Limpach.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _XEN_IF_XENNETVAR_H_
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#define _XEN_IF_XENNETVAR_H_
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#include <machine/xen.h>
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#include <machine/hypervisor-ifs/network.h>
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union xennet_bufarray {
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struct mbuf *xb_m;
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struct {
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vaddr_t xbrx_va;
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paddr_t xbrx_ptpa;
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struct xennet_softc *xbrx_sc;
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} xb_rx;
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int xb_next;
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};
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struct xennet_txbuf {
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SLIST_ENTRY(xennet_txbuf) xt_next;
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struct xennet_softc *xt_sc;
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paddr_t xt_pa;
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u_char xt_buf[0];
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};
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#define TXBUF_PER_PAGE 2
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#define TXBUF_BUFSIZE (PAGE_SIZE / TXBUF_PER_PAGE) - sizeof(struct xennet_txbuf)
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struct xennet_softc {
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struct device sc_dev; /* base device glue */
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struct ethercom sc_ethercom; /* Ethernet common part */
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int sc_ifno;
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uint8_t sc_enaddr[6];
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#ifdef mediacode
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struct ifmedia sc_media;
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#endif
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net_ring_t *sc_net_ring;
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net_idx_t *sc_net_idx;
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uint32_t sc_tx_entries;
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uint32_t sc_tx_resp_cons;
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uint32_t sc_rx_resp_cons;
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uint32_t sc_rx_bufs_to_notify;
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union xennet_bufarray sc_tx_bufa[TX_RING_SIZE];
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union xennet_bufarray sc_rx_bufa[TX_RING_SIZE];
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SLIST_HEAD(, xennet_txbuf) sc_tx_bufs;
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#if NRND > 0
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rndsource_element_t sc_rnd_source;
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#endif
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};
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struct xennet_attach_args {
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const char *xa_device;
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netop_t xa_netop;
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};
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struct nfs_diskless;
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int xennet_scan(struct device *, struct xennet_attach_args *, cfprint_t);
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void xennet_start(struct ifnet *);
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int xennet_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
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void xennet_watchdog(struct ifnet *ifp);
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int xennet_bootstatic_callback(struct nfs_diskless *);
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#endif /* _XEN_IF_XENNETVAR_H_ */
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