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/*-
* Copyright (c) 2009-2012,2016 Microsoft Corp.
* Copyright (c) 2010-2012 Citrix Inc.
* Copyright (c) 2012 NetApp Inc.
* 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 unmodified, 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 ``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 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.
*
* $FreeBSD$
*/
#ifndef _HN_NVS_H_
#define _HN_NVS_H_
struct hn_nvs_sendctx;
struct vmbus_channel;
struct hn_softc;
typedef void (*hn_nvs_sent_t)
(struct hn_nvs_sendctx *, struct hn_softc *,
struct vmbus_channel *, const void *, int);
struct hn_nvs_sendctx {
hn_nvs_sent_t hn_cb;
void *hn_cbarg;
};
#define HN_NVS_SENDCTX_INITIALIZER(cb, cbarg) \
{ \
.hn_cb = cb, \
.hn_cbarg = cbarg \
}
static __inline void
hn_nvs_sendctx_init(struct hn_nvs_sendctx *sndc, hn_nvs_sent_t cb, void *cbarg)
{
sndc->hn_cb = cb;
sndc->hn_cbarg = cbarg;
}
static __inline int
hn_nvs_send(struct vmbus_channel *chan, uint16_t flags,
void *nvs_msg, int nvs_msglen, struct hn_nvs_sendctx *sndc)
{
return (vmbus_chan_send(chan, VMBUS_CHANPKT_TYPE_INBAND, flags,
nvs_msg, nvs_msglen, (uint64_t)(uintptr_t)sndc));
}
static __inline int
hn_nvs_send_sglist(struct vmbus_channel *chan, struct vmbus_gpa sg[], int sglen,
void *nvs_msg, int nvs_msglen, struct hn_nvs_sendctx *sndc)
{
return (vmbus_chan_send_sglist(chan, sg, sglen, nvs_msg, nvs_msglen,
(uint64_t)(uintptr_t)sndc));
}
static __inline int
hn_nvs_send_rndis_sglist(struct vmbus_channel *chan, uint32_t rndis_mtype,
struct hn_nvs_sendctx *sndc, struct vmbus_gpa *gpa, int gpa_cnt)
{
struct hn_nvs_rndis rndis;
rndis.nvs_type = HN_NVS_TYPE_RNDIS;
rndis.nvs_rndis_mtype = rndis_mtype;
rndis.nvs_chim_idx = HN_NVS_CHIM_IDX_INVALID;
rndis.nvs_chim_sz = 0;
return (hn_nvs_send_sglist(chan, gpa, gpa_cnt,
&rndis, sizeof(rndis), sndc));
}
int hn_nvs_attach(struct hn_softc *sc, int mtu);
void hn_nvs_detach(struct hn_softc *sc);
int hn_nvs_alloc_subchans(struct hn_softc *sc, int *nsubch);
void hn_nvs_sent_xact(struct hn_nvs_sendctx *sndc,
struct hn_softc *sc, struct vmbus_channel *chan,
const void *data, int dlen);
int hn_nvs_send_rndis_ctrl(struct vmbus_channel *chan,
struct hn_nvs_sendctx *sndc, struct vmbus_gpa *gpa,
int gpa_cnt);
void hn_nvs_set_datapath(struct hn_softc *sc, uint32_t path);
extern struct hn_nvs_sendctx hn_nvs_sendctx_none;
#endif /* !_HN_NVS_H_ */
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