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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 __HV_RNDIS_FILTER_H__
#define __HV_RNDIS_FILTER_H__
#include <sys/param.h>
#include <net/ethernet.h>
#include <dev/hyperv/netvsc/if_hnvar.h>
/*
* Defines
*/
/* Destroy or preserve channel on filter/netvsc teardown */
#define HV_RF_NV_DESTROY_CHANNEL TRUE
#define HV_RF_NV_RETAIN_CHANNEL FALSE
/*
* Number of page buffers to reserve for the RNDIS filter packet in the
* transmitted message.
*/
#define HV_RF_NUM_TX_RESERVED_PAGE_BUFS 1
/*
* Data types
*/
typedef enum {
RNDIS_DEV_UNINITIALIZED = 0,
RNDIS_DEV_INITIALIZING,
RNDIS_DEV_INITIALIZED,
RNDIS_DEV_DATAINITIALIZED,
} rndis_device_state;
typedef struct rndis_request_ {
STAILQ_ENTRY(rndis_request_) mylist_entry;
struct sema wait_sema;
/*
* The max response size is sizeof(rndis_msg) + PAGE_SIZE.
*
* XXX
* This is ugly and should be cleaned up once we busdma-fy
* RNDIS request bits.
*/
rndis_msg response_msg;
uint8_t buf_resp[PAGE_SIZE];
/* Simplify allocation by having a netvsc packet inline */
struct hn_send_ctx send_ctx;
/*
* The max request size is sizeof(rndis_msg) + PAGE_SIZE.
*
* NOTE:
* This is required for the large request like RSS settings.
*
* XXX
* This is ugly and should be cleaned up once we busdma-fy
* RNDIS request bits.
*/
rndis_msg request_msg;
uint8_t buf_req[PAGE_SIZE];
/* Fixme: Poor man's semaphore. */
uint32_t halt_complete_flag;
} rndis_request;
typedef struct rndis_device_ {
struct hn_softc *sc;
rndis_device_state state;
uint32_t link_status;
uint32_t new_request_id;
struct mtx req_lock;
STAILQ_HEAD(RQ, rndis_request_) myrequest_list;
uint8_t hw_mac_addr[ETHER_ADDR_LEN];
} rndis_device;
/*
* Externs
*/
struct hn_rx_ring;
int hv_rf_on_receive(struct hn_softc *sc, struct hn_rx_ring *rxr,
const void *data, int dlen);
void hv_rf_channel_rollup(struct hn_rx_ring *rxr, struct hn_tx_ring *txr);
int hv_rf_on_device_add(struct hn_softc *sc, void *additl_info, int *nchan,
struct hn_rx_ring *rxr);
int hv_rf_on_device_remove(struct hn_softc *sc, boolean_t destroy_channel);
int hv_rf_on_open(struct hn_softc *sc);
int hv_rf_on_close(struct hn_softc *sc);
#endif /* __HV_RNDIS_FILTER_H__ */
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