e61005fedc
MFC after: 1 week Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8353
107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
/*-
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* Copyright (c) 2009-2012,2016 Microsoft Corp.
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* Copyright (c) 2010-2012 Citrix Inc.
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* Copyright (c) 2012 NetApp Inc.
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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 unmodified, this list of conditions, and the following
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* 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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*
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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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* $FreeBSD$
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*/
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#ifndef _HN_NVS_H_
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#define _HN_NVS_H_
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struct hn_nvs_sendctx;
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struct vmbus_channel;
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struct hn_softc;
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typedef void (*hn_nvs_sent_t)
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(struct hn_nvs_sendctx *, struct hn_softc *,
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struct vmbus_channel *, const void *, int);
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struct hn_nvs_sendctx {
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hn_nvs_sent_t hn_cb;
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void *hn_cbarg;
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};
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#define HN_NVS_SENDCTX_INITIALIZER(cb, cbarg) \
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{ \
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.hn_cb = cb, \
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.hn_cbarg = cbarg \
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}
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static __inline void
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hn_nvs_sendctx_init(struct hn_nvs_sendctx *sndc, hn_nvs_sent_t cb, void *cbarg)
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{
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sndc->hn_cb = cb;
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sndc->hn_cbarg = cbarg;
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}
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static __inline int
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hn_nvs_send(struct vmbus_channel *chan, uint16_t flags,
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void *nvs_msg, int nvs_msglen, struct hn_nvs_sendctx *sndc)
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{
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return (vmbus_chan_send(chan, VMBUS_CHANPKT_TYPE_INBAND, flags,
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nvs_msg, nvs_msglen, (uint64_t)(uintptr_t)sndc));
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}
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static __inline int
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hn_nvs_send_sglist(struct vmbus_channel *chan, struct vmbus_gpa sg[], int sglen,
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void *nvs_msg, int nvs_msglen, struct hn_nvs_sendctx *sndc)
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{
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return (vmbus_chan_send_sglist(chan, sg, sglen, nvs_msg, nvs_msglen,
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(uint64_t)(uintptr_t)sndc));
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}
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static __inline int
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hn_nvs_send_rndis_sglist(struct vmbus_channel *chan, uint32_t rndis_mtype,
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struct hn_nvs_sendctx *sndc, struct vmbus_gpa *gpa, int gpa_cnt)
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{
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struct hn_nvs_rndis rndis;
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rndis.nvs_type = HN_NVS_TYPE_RNDIS;
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rndis.nvs_rndis_mtype = rndis_mtype;
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rndis.nvs_chim_idx = HN_NVS_CHIM_IDX_INVALID;
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rndis.nvs_chim_sz = 0;
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return (hn_nvs_send_sglist(chan, gpa, gpa_cnt,
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&rndis, sizeof(rndis), sndc));
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}
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int hn_nvs_attach(struct hn_softc *sc, int mtu);
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void hn_nvs_detach(struct hn_softc *sc);
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int hn_nvs_alloc_subchans(struct hn_softc *sc, int *nsubch);
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void hn_nvs_sent_xact(struct hn_nvs_sendctx *sndc,
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struct hn_softc *sc, struct vmbus_channel *chan,
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const void *data, int dlen);
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int hn_nvs_send_rndis_ctrl(struct vmbus_channel *chan,
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struct hn_nvs_sendctx *sndc, struct vmbus_gpa *gpa,
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int gpa_cnt);
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extern struct hn_nvs_sendctx hn_nvs_sendctx_none;
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#endif /* !_HN_NVS_H_ */
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