diff options
Diffstat (limited to 'sys/dev/hyperv/netvsc/hv_rndis_filter.h')
| -rw-r--r-- | sys/dev/hyperv/netvsc/hv_rndis_filter.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/sys/dev/hyperv/netvsc/hv_rndis_filter.h b/sys/dev/hyperv/netvsc/hv_rndis_filter.h new file mode 100644 index 0000000..edbb347 --- /dev/null +++ b/sys/dev/hyperv/netvsc/hv_rndis_filter.h @@ -0,0 +1,116 @@ +/*- + * Copyright (c) 2009-2012 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. + */ + +#ifndef __HV_RNDIS_FILTER_H__ +#define __HV_RNDIS_FILTER_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; + + /* + * Fixme: We assumed a fixed size response here. If we do ever + * need to handle a bigger response, we can either define a max + * response message or add a response buffer variable above this field + */ + rndis_msg response_msg; + + /* Simplify allocation by having a netvsc packet inline */ + netvsc_packet pkt; + hv_vmbus_page_buffer buffer; + /* Fixme: We assumed a fixed size request here. */ + rndis_msg request_msg; + /* Fixme: Poor man's semaphore. */ + uint32_t halt_complete_flag; +} rndis_request; + +typedef struct rndis_device_ { + netvsc_dev *net_dev; + + 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[HW_MACADDR_LEN]; +} rndis_device; + +typedef struct rndis_filter_packet_ { + void *completion_context; + /* No longer used */ + pfn_on_send_rx_completion on_completion; + + rndis_msg message; +} rndis_filter_packet; + + +/* + * Externs + */ + +extern int hv_rf_on_receive(struct hv_device *device, netvsc_packet *pkt); +extern int hv_rf_on_device_add(struct hv_device *device, void *additl_info); +extern int hv_rf_on_device_remove(struct hv_device *device, + boolean_t destroy_channel); +extern int hv_rf_on_open(struct hv_device *device); +extern int hv_rf_on_close(struct hv_device *device); +extern int hv_rf_on_send(struct hv_device *device, netvsc_packet *pkt); + + +#endif /* __HV_RNDIS_FILTER_H__ */ + |
