2 * Copyright (c) 2009-2012 Microsoft Corp.
3 * Copyright (c) 2010-2012 Citrix Inc.
4 * Copyright (c) 2012 NetApp Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice unmodified, this list of conditions, and the following
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
34 #include <sys/socket.h>
36 #include <sys/mutex.h>
37 #include <net/if_arp.h>
38 #include <net/ethernet.h>
39 #include <sys/types.h>
40 #include <machine/atomic.h>
43 #include <vm/vm_param.h>
46 #include <dev/hyperv/include/hyperv.h>
47 #include "hv_net_vsc.h"
49 #include "hv_rndis_filter.h"
53 * Forward declarations
55 static int hv_rf_send_request(rndis_device *device, rndis_request *request,
56 uint32_t message_type);
57 static void hv_rf_receive_response(rndis_device *device, rndis_msg *response);
58 static void hv_rf_receive_indicate_status(rndis_device *device,
60 static void hv_rf_receive_data(rndis_device *device, rndis_msg *message,
62 static int hv_rf_query_device(rndis_device *device, uint32_t oid,
63 void *result, uint32_t *result_size);
64 static inline int hv_rf_query_device_mac(rndis_device *device);
65 static inline int hv_rf_query_device_link_status(rndis_device *device);
66 static int hv_rf_set_packet_filter(rndis_device *device, uint32_t new_filter);
67 static int hv_rf_init_device(rndis_device *device);
68 static int hv_rf_open_device(rndis_device *device);
69 static int hv_rf_close_device(rndis_device *device);
70 static void hv_rf_on_send_request_completion(void *context);
71 static void hv_rf_on_send_request_halt_completion(void *context);
73 hv_rf_send_offload_request(struct hv_device *device,
74 rndis_offload_params *offloads);
76 * Set the Per-Packet-Info with the specified type
79 hv_set_rppi_data(rndis_msg *rndis_mesg, uint32_t rppi_size,
82 rndis_packet *rndis_pkt;
83 rndis_per_packet_info *rppi;
85 rndis_pkt = &rndis_mesg->msg.packet;
86 rndis_pkt->data_offset += rppi_size;
88 rppi = (rndis_per_packet_info *)((char *)rndis_pkt +
89 rndis_pkt->per_pkt_info_offset + rndis_pkt->per_pkt_info_length);
91 rppi->size = rppi_size;
92 rppi->type = pkt_type;
93 rppi->per_packet_info_offset = sizeof(rndis_per_packet_info);
95 rndis_pkt->per_pkt_info_length += rppi_size;
101 * Get the Per-Packet-Info with the specified type
102 * return NULL if not found.
105 hv_get_ppi_data(rndis_packet *rpkt, uint32_t type)
107 rndis_per_packet_info *ppi;
110 if (rpkt->per_pkt_info_offset == 0)
113 ppi = (rndis_per_packet_info *)((unsigned long)rpkt +
114 rpkt->per_pkt_info_offset);
115 len = rpkt->per_pkt_info_length;
118 if (ppi->type == type)
119 return (void *)((unsigned long)ppi +
120 ppi->per_packet_info_offset);
123 ppi = (rndis_per_packet_info *)((unsigned long)ppi + ppi->size);
131 * Allow module_param to work and override to switch to promiscuous mode.
133 static inline rndis_device *
134 hv_get_rndis_device(void)
136 rndis_device *device;
138 device = malloc(sizeof(rndis_device), M_NETVSC, M_NOWAIT | M_ZERO);
139 if (device == NULL) {
143 mtx_init(&device->req_lock, "HV-FRL", NULL, MTX_SPIN | MTX_RECURSE);
145 /* Same effect as STAILQ_HEAD_INITIALIZER() static initializer */
146 STAILQ_INIT(&device->myrequest_list);
148 device->state = RNDIS_DEV_UNINITIALIZED;
157 hv_put_rndis_device(rndis_device *device)
159 mtx_destroy(&device->req_lock);
160 free(device, M_NETVSC);
166 static inline rndis_request *
167 hv_rndis_request(rndis_device *device, uint32_t message_type,
168 uint32_t message_length)
170 rndis_request *request;
171 rndis_msg *rndis_mesg;
172 rndis_set_request *set;
174 request = malloc(sizeof(rndis_request), M_NETVSC, M_NOWAIT | M_ZERO);
175 if (request == NULL) {
179 sema_init(&request->wait_sema, 0, "rndis sema");
181 rndis_mesg = &request->request_msg;
182 rndis_mesg->ndis_msg_type = message_type;
183 rndis_mesg->msg_len = message_length;
186 * Set the request id. This field is always after the rndis header
187 * for request/response packet types so we just use the set_request
190 set = &rndis_mesg->msg.set_request;
191 set->request_id = atomic_fetchadd_int(&device->new_request_id, 1);
192 /* Increment to get the new value (call above returns old value) */
193 set->request_id += 1;
195 /* Add to the request list */
196 mtx_lock_spin(&device->req_lock);
197 STAILQ_INSERT_TAIL(&device->myrequest_list, request, mylist_entry);
198 mtx_unlock_spin(&device->req_lock);
207 hv_put_rndis_request(rndis_device *device, rndis_request *request)
209 mtx_lock_spin(&device->req_lock);
210 /* Fixme: Has O(n) performance */
212 * XXXKYS: Use Doubly linked lists.
214 STAILQ_REMOVE(&device->myrequest_list, request, rndis_request_,
216 mtx_unlock_spin(&device->req_lock);
218 sema_destroy(&request->wait_sema);
219 free(request, M_NETVSC);
226 hv_rf_send_request(rndis_device *device, rndis_request *request,
227 uint32_t message_type)
230 netvsc_packet *packet;
232 /* Set up the packet to send it */
233 packet = &request->pkt;
235 packet->is_data_pkt = FALSE;
236 packet->tot_data_buf_len = request->request_msg.msg_len;
237 packet->page_buf_count = 1;
239 packet->page_buffers[0].pfn =
240 hv_get_phys_addr(&request->request_msg) >> PAGE_SHIFT;
241 packet->page_buffers[0].length = request->request_msg.msg_len;
242 packet->page_buffers[0].offset =
243 (unsigned long)&request->request_msg & (PAGE_SIZE - 1);
245 packet->compl.send.send_completion_context = request; /* packet */
246 if (message_type != REMOTE_NDIS_HALT_MSG) {
247 packet->compl.send.on_send_completion =
248 hv_rf_on_send_request_completion;
250 packet->compl.send.on_send_completion =
251 hv_rf_on_send_request_halt_completion;
253 packet->compl.send.send_completion_tid = (unsigned long)device;
254 packet->send_buf_section_idx =
255 NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX;
256 packet->send_buf_section_size = 0;
258 ret = hv_nv_on_send(device->net_dev->dev, packet);
264 * RNDIS filter receive response
267 hv_rf_receive_response(rndis_device *device, rndis_msg *response)
269 rndis_request *request = NULL;
270 rndis_request *next_request;
271 boolean_t found = FALSE;
273 mtx_lock_spin(&device->req_lock);
274 request = STAILQ_FIRST(&device->myrequest_list);
275 while (request != NULL) {
277 * All request/response message contains request_id as the
280 if (request->request_msg.msg.init_request.request_id ==
281 response->msg.init_complete.request_id) {
285 next_request = STAILQ_NEXT(request, mylist_entry);
286 request = next_request;
288 mtx_unlock_spin(&device->req_lock);
291 if (response->msg_len <= sizeof(rndis_msg)) {
292 memcpy(&request->response_msg, response,
295 if (response->ndis_msg_type == REMOTE_NDIS_RESET_CMPLT) {
296 /* Does not have a request id field */
297 request->response_msg.msg.reset_complete.status =
298 STATUS_BUFFER_OVERFLOW;
300 request->response_msg.msg.init_complete.status =
301 STATUS_BUFFER_OVERFLOW;
305 sema_post(&request->wait_sema);
310 hv_rf_send_offload_request(struct hv_device *device,
311 rndis_offload_params *offloads)
313 rndis_request *request;
314 rndis_set_request *set;
315 rndis_offload_params *offload_req;
316 rndis_set_complete *set_complete;
317 rndis_device *rndis_dev;
318 hn_softc_t *sc = device_get_softc(device->device);
319 device_t dev = device->device;
320 netvsc_dev *net_dev = sc->net_dev;
321 uint32_t vsp_version = net_dev->nvsp_version;
322 uint32_t extlen = sizeof(rndis_offload_params);
325 if (vsp_version <= NVSP_PROTOCOL_VERSION_4) {
326 extlen = VERSION_4_OFFLOAD_SIZE;
327 /* On NVSP_PROTOCOL_VERSION_4 and below, we do not support
328 * UDP checksum offload.
330 offloads->udp_ipv4_csum = 0;
331 offloads->udp_ipv6_csum = 0;
334 rndis_dev = net_dev->extension;
336 request = hv_rndis_request(rndis_dev, REMOTE_NDIS_SET_MSG,
337 RNDIS_MESSAGE_SIZE(rndis_set_request) + extlen);
341 set = &request->request_msg.msg.set_request;
342 set->oid = RNDIS_OID_TCP_OFFLOAD_PARAMETERS;
343 set->info_buffer_length = extlen;
344 set->info_buffer_offset = sizeof(rndis_set_request);
345 set->device_vc_handle = 0;
347 offload_req = (rndis_offload_params *)((unsigned long)set +
348 set->info_buffer_offset);
349 *offload_req = *offloads;
350 offload_req->header.type = RNDIS_OBJECT_TYPE_DEFAULT;
351 offload_req->header.revision = RNDIS_OFFLOAD_PARAMETERS_REVISION_3;
352 offload_req->header.size = extlen;
354 ret = hv_rf_send_request(rndis_dev, request, REMOTE_NDIS_SET_MSG);
356 device_printf(dev, "hv send offload request failed, ret=%d!\n",
361 ret = sema_timedwait(&request->wait_sema, 500);
363 device_printf(dev, "hv send offload request timeout\n");
367 set_complete = &request->response_msg.msg.set_complete;
368 if (set_complete->status == RNDIS_STATUS_SUCCESS) {
369 device_printf(dev, "hv send offload request succeeded\n");
372 if (set_complete->status == STATUS_NOT_SUPPORTED) {
373 device_printf(dev, "HV Not support offload\n");
376 ret = set_complete->status;
382 hv_put_rndis_request(rndis_dev, request);
388 * RNDIS filter receive indicate status
391 hv_rf_receive_indicate_status(rndis_device *device, rndis_msg *response)
393 rndis_indicate_status *indicate = &response->msg.indicate_status;
395 switch(indicate->status) {
396 case RNDIS_STATUS_MEDIA_CONNECT:
397 netvsc_linkstatus_callback(device->net_dev->dev, 1);
399 case RNDIS_STATUS_MEDIA_DISCONNECT:
400 netvsc_linkstatus_callback(device->net_dev->dev, 0);
404 device_printf(device->net_dev->dev->device,
405 "unknown status %d received\n", indicate->status);
411 * RNDIS filter receive data
414 hv_rf_receive_data(rndis_device *device, rndis_msg *message, netvsc_packet *pkt)
416 rndis_packet *rndis_pkt;
417 ndis_8021q_info *rppi_vlan_info;
418 uint32_t data_offset;
419 rndis_tcp_ip_csum_info *csum_info = NULL;
420 device_t dev = device->net_dev->dev->device;
422 rndis_pkt = &message->msg.packet;
425 * Fixme: Handle multiple rndis pkt msgs that may be enclosed in this
426 * netvsc packet (ie tot_data_buf_len != message_length)
429 /* Remove rndis header, then pass data packet up the stack */
430 data_offset = RNDIS_HEADER_SIZE + rndis_pkt->data_offset;
432 pkt->tot_data_buf_len -= data_offset;
433 if (pkt->tot_data_buf_len < rndis_pkt->data_length) {
434 pkt->status = nvsp_status_failure;
436 "total length %u is less than data length %u\n",
437 pkt->tot_data_buf_len, rndis_pkt->data_length);
441 pkt->tot_data_buf_len = rndis_pkt->data_length;
442 pkt->data = (void *)((unsigned long)pkt->data + data_offset);
444 rppi_vlan_info = hv_get_ppi_data(rndis_pkt, ieee_8021q_info);
445 if (rppi_vlan_info) {
446 pkt->vlan_tci = rppi_vlan_info->u1.s1.vlan_id;
451 csum_info = hv_get_ppi_data(rndis_pkt, tcpip_chksum_info);
452 netvsc_recv(device->net_dev->dev, pkt, csum_info);
456 * RNDIS filter on receive
459 hv_rf_on_receive(netvsc_dev *net_dev, struct hv_device *device, netvsc_packet *pkt)
461 rndis_device *rndis_dev;
462 rndis_msg *rndis_hdr;
464 /* Make sure the rndis device state is initialized */
465 if (net_dev->extension == NULL) {
466 pkt->status = nvsp_status_failure;
470 rndis_dev = (rndis_device *)net_dev->extension;
471 if (rndis_dev->state == RNDIS_DEV_UNINITIALIZED) {
472 pkt->status = nvsp_status_failure;
476 rndis_hdr = pkt->data;
478 switch (rndis_hdr->ndis_msg_type) {
481 case REMOTE_NDIS_PACKET_MSG:
482 hv_rf_receive_data(rndis_dev, rndis_hdr, pkt);
484 /* completion messages */
485 case REMOTE_NDIS_INITIALIZE_CMPLT:
486 case REMOTE_NDIS_QUERY_CMPLT:
487 case REMOTE_NDIS_SET_CMPLT:
488 case REMOTE_NDIS_RESET_CMPLT:
489 case REMOTE_NDIS_KEEPALIVE_CMPLT:
490 hv_rf_receive_response(rndis_dev, rndis_hdr);
492 /* notification message */
493 case REMOTE_NDIS_INDICATE_STATUS_MSG:
494 hv_rf_receive_indicate_status(rndis_dev, rndis_hdr);
497 printf("hv_rf_on_receive(): Unknown msg_type 0x%x\n",
498 rndis_hdr->ndis_msg_type);
506 * RNDIS filter query device
509 hv_rf_query_device(rndis_device *device, uint32_t oid, void *result,
510 uint32_t *result_size)
512 rndis_request *request;
513 uint32_t in_result_size = *result_size;
514 rndis_query_request *query;
515 rndis_query_complete *query_complete;
519 request = hv_rndis_request(device, REMOTE_NDIS_QUERY_MSG,
520 RNDIS_MESSAGE_SIZE(rndis_query_request));
521 if (request == NULL) {
526 /* Set up the rndis query */
527 query = &request->request_msg.msg.query_request;
529 query->info_buffer_offset = sizeof(rndis_query_request);
530 query->info_buffer_length = 0;
531 query->device_vc_handle = 0;
533 ret = hv_rf_send_request(device, request, REMOTE_NDIS_QUERY_MSG);
535 /* Fixme: printf added */
536 printf("RNDISFILTER request failed to Send!\n");
540 sema_wait(&request->wait_sema);
542 /* Copy the response back */
543 query_complete = &request->response_msg.msg.query_complete;
545 if (query_complete->info_buffer_length > in_result_size) {
550 memcpy(result, (void *)((unsigned long)query_complete +
551 query_complete->info_buffer_offset),
552 query_complete->info_buffer_length);
554 *result_size = query_complete->info_buffer_length;
558 hv_put_rndis_request(device, request);
564 * RNDIS filter query device MAC address
567 hv_rf_query_device_mac(rndis_device *device)
569 uint32_t size = HW_MACADDR_LEN;
571 return (hv_rf_query_device(device,
572 RNDIS_OID_802_3_PERMANENT_ADDRESS, device->hw_mac_addr, &size));
576 * RNDIS filter query device link status
579 hv_rf_query_device_link_status(rndis_device *device)
581 uint32_t size = sizeof(uint32_t);
583 return (hv_rf_query_device(device,
584 RNDIS_OID_GEN_MEDIA_CONNECT_STATUS, &device->link_status, &size));
588 * RNDIS filter set packet filter
589 * Sends an rndis request with the new filter, then waits for a response
591 * Returns zero on success, non-zero on failure.
594 hv_rf_set_packet_filter(rndis_device *device, uint32_t new_filter)
596 rndis_request *request;
597 rndis_set_request *set;
598 rndis_set_complete *set_complete;
602 request = hv_rndis_request(device, REMOTE_NDIS_SET_MSG,
603 RNDIS_MESSAGE_SIZE(rndis_set_request) + sizeof(uint32_t));
604 if (request == NULL) {
609 /* Set up the rndis set */
610 set = &request->request_msg.msg.set_request;
611 set->oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER;
612 set->info_buffer_length = sizeof(uint32_t);
613 set->info_buffer_offset = sizeof(rndis_set_request);
615 memcpy((void *)((unsigned long)set + sizeof(rndis_set_request)),
616 &new_filter, sizeof(uint32_t));
618 ret = hv_rf_send_request(device, request, REMOTE_NDIS_SET_MSG);
624 * Wait for the response from the host. Another thread will signal
625 * us when the response has arrived. In the failure case,
626 * sema_timedwait() returns a non-zero status after waiting 5 seconds.
628 ret = sema_timedwait(&request->wait_sema, 500);
630 /* Response received, check status */
631 set_complete = &request->response_msg.msg.set_complete;
632 status = set_complete->status;
633 if (status != RNDIS_STATUS_SUCCESS) {
634 /* Bad response status, return error */
639 * We cannot deallocate the request since we may still
640 * receive a send completion for it.
646 if (request != NULL) {
647 hv_put_rndis_request(device, request);
654 * RNDIS filter init device
657 hv_rf_init_device(rndis_device *device)
659 rndis_request *request;
660 rndis_initialize_request *init;
661 rndis_initialize_complete *init_complete;
665 request = hv_rndis_request(device, REMOTE_NDIS_INITIALIZE_MSG,
666 RNDIS_MESSAGE_SIZE(rndis_initialize_request));
672 /* Set up the rndis set */
673 init = &request->request_msg.msg.init_request;
674 init->major_version = RNDIS_MAJOR_VERSION;
675 init->minor_version = RNDIS_MINOR_VERSION;
677 * Per the RNDIS document, this should be set to the max MTU
678 * plus the header size. However, 2048 works fine, so leaving
681 init->max_xfer_size = 2048;
683 device->state = RNDIS_DEV_INITIALIZING;
685 ret = hv_rf_send_request(device, request, REMOTE_NDIS_INITIALIZE_MSG);
687 device->state = RNDIS_DEV_UNINITIALIZED;
691 sema_wait(&request->wait_sema);
693 init_complete = &request->response_msg.msg.init_complete;
694 status = init_complete->status;
695 if (status == RNDIS_STATUS_SUCCESS) {
696 device->state = RNDIS_DEV_INITIALIZED;
699 device->state = RNDIS_DEV_UNINITIALIZED;
705 hv_put_rndis_request(device, request);
711 #define HALT_COMPLETION_WAIT_COUNT 25
714 * RNDIS filter halt device
717 hv_rf_halt_device(rndis_device *device)
719 rndis_request *request;
720 rndis_halt_request *halt;
723 /* Attempt to do a rndis device halt */
724 request = hv_rndis_request(device, REMOTE_NDIS_HALT_MSG,
725 RNDIS_MESSAGE_SIZE(rndis_halt_request));
726 if (request == NULL) {
730 /* initialize "poor man's semaphore" */
731 request->halt_complete_flag = 0;
733 /* Set up the rndis set */
734 halt = &request->request_msg.msg.halt_request;
735 halt->request_id = atomic_fetchadd_int(&device->new_request_id, 1);
736 /* Increment to get the new value (call above returns old value) */
737 halt->request_id += 1;
739 ret = hv_rf_send_request(device, request, REMOTE_NDIS_HALT_MSG);
745 * Wait for halt response from halt callback. We must wait for
746 * the transaction response before freeing the request and other
749 for (i=HALT_COMPLETION_WAIT_COUNT; i > 0; i--) {
750 if (request->halt_complete_flag != 0) {
759 device->state = RNDIS_DEV_UNINITIALIZED;
761 if (request != NULL) {
762 hv_put_rndis_request(device, request);
769 * RNDIS filter open device
772 hv_rf_open_device(rndis_device *device)
776 if (device->state != RNDIS_DEV_INITIALIZED) {
780 if (hv_promisc_mode != 1) {
781 ret = hv_rf_set_packet_filter(device,
782 NDIS_PACKET_TYPE_BROADCAST |
783 NDIS_PACKET_TYPE_ALL_MULTICAST |
784 NDIS_PACKET_TYPE_DIRECTED);
786 ret = hv_rf_set_packet_filter(device,
787 NDIS_PACKET_TYPE_PROMISCUOUS);
791 device->state = RNDIS_DEV_DATAINITIALIZED;
798 * RNDIS filter close device
801 hv_rf_close_device(rndis_device *device)
805 if (device->state != RNDIS_DEV_DATAINITIALIZED) {
809 ret = hv_rf_set_packet_filter(device, 0);
811 device->state = RNDIS_DEV_INITIALIZED;
818 * RNDIS filter on device add
821 hv_rf_on_device_add(struct hv_device *device, void *additl_info)
825 rndis_device *rndis_dev;
826 rndis_offload_params offloads;
827 netvsc_device_info *dev_info = (netvsc_device_info *)additl_info;
828 device_t dev = device->device;
830 rndis_dev = hv_get_rndis_device();
831 if (rndis_dev == NULL) {
836 * Let the inner driver handle this first to create the netvsc channel
837 * NOTE! Once the channel is created, we may get a receive callback
838 * (hv_rf_on_receive()) before this call is completed.
839 * Note: Earlier code used a function pointer here.
841 net_dev = hv_nv_on_device_add(device, additl_info);
843 hv_put_rndis_device(rndis_dev);
849 * Initialize the rndis device
852 net_dev->extension = rndis_dev;
853 rndis_dev->net_dev = net_dev;
855 /* Send the rndis initialization message */
856 ret = hv_rf_init_device(rndis_dev);
859 * TODO: If rndis init failed, we will need to shut down
864 /* Get the mac address */
865 ret = hv_rf_query_device_mac(rndis_dev);
867 /* TODO: shut down rndis device and the channel */
870 /* config csum offload and send request to host */
871 memset(&offloads, 0, sizeof(offloads));
872 offloads.ipv4_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
873 offloads.tcp_ipv4_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
874 offloads.udp_ipv4_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
875 offloads.tcp_ipv6_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
876 offloads.udp_ipv6_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
877 offloads.lso_v2_ipv4 = RNDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED;
879 ret = hv_rf_send_offload_request(device, &offloads);
881 /* TODO: shut down rndis device and the channel */
883 "hv_rf_send_offload_request failed, ret=%d\n", ret);
886 memcpy(dev_info->mac_addr, rndis_dev->hw_mac_addr, HW_MACADDR_LEN);
888 hv_rf_query_device_link_status(rndis_dev);
890 dev_info->link_state = rndis_dev->link_status;
896 * RNDIS filter on device remove
899 hv_rf_on_device_remove(struct hv_device *device, boolean_t destroy_channel)
901 hn_softc_t *sc = device_get_softc(device->device);
902 netvsc_dev *net_dev = sc->net_dev;
903 rndis_device *rndis_dev = (rndis_device *)net_dev->extension;
906 /* Halt and release the rndis device */
907 ret = hv_rf_halt_device(rndis_dev);
909 hv_put_rndis_device(rndis_dev);
910 net_dev->extension = NULL;
912 /* Pass control to inner driver to remove the device */
913 ret |= hv_nv_on_device_remove(device, destroy_channel);
919 * RNDIS filter on open
922 hv_rf_on_open(struct hv_device *device)
924 hn_softc_t *sc = device_get_softc(device->device);
925 netvsc_dev *net_dev = sc->net_dev;
927 return (hv_rf_open_device((rndis_device *)net_dev->extension));
931 * RNDIS filter on close
934 hv_rf_on_close(struct hv_device *device)
936 hn_softc_t *sc = device_get_softc(device->device);
937 netvsc_dev *net_dev = sc->net_dev;
939 return (hv_rf_close_device((rndis_device *)net_dev->extension));
943 * RNDIS filter on send request completion callback
946 hv_rf_on_send_request_completion(void *context)
951 * RNDIS filter on send request (halt only) completion callback
954 hv_rf_on_send_request_halt_completion(void *context)
956 rndis_request *request = context;
959 * Notify hv_rf_halt_device() about halt completion.
960 * The halt code must wait for completion before freeing
961 * the transaction resources.
963 request->halt_complete_flag = 1;