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>
33 #include <sys/kernel.h>
35 #include <sys/socket.h>
37 #include <sys/mutex.h>
38 #include <net/if_arp.h>
39 #include <net/ethernet.h>
40 #include <sys/types.h>
41 #include <machine/atomic.h>
44 #include <vm/vm_param.h>
47 #include <dev/hyperv/include/hyperv.h>
48 #include "hv_net_vsc.h"
50 #include "hv_rndis_filter.h"
54 * Forward declarations
56 static int hv_rf_send_request(rndis_device *device, rndis_request *request,
57 uint32_t message_type);
58 static void hv_rf_receive_response(rndis_device *device, rndis_msg *response);
59 static void hv_rf_receive_indicate_status(rndis_device *device,
61 static void hv_rf_receive_data(rndis_device *device, rndis_msg *message,
62 struct hv_vmbus_channel *chan,
64 static int hv_rf_query_device(rndis_device *device, uint32_t oid,
65 void *result, uint32_t *result_size);
66 static inline int hv_rf_query_device_mac(rndis_device *device);
67 static inline int hv_rf_query_device_link_status(rndis_device *device);
68 static int hv_rf_set_packet_filter(rndis_device *device, uint32_t new_filter);
69 static int hv_rf_init_device(rndis_device *device);
70 static int hv_rf_open_device(rndis_device *device);
71 static int hv_rf_close_device(rndis_device *device);
72 static void hv_rf_on_send_request_completion(void *context);
73 static void hv_rf_on_send_request_halt_completion(void *context);
75 hv_rf_send_offload_request(struct hv_device *device,
76 rndis_offload_params *offloads);
78 * Set the Per-Packet-Info with the specified type
81 hv_set_rppi_data(rndis_msg *rndis_mesg, uint32_t rppi_size,
84 rndis_packet *rndis_pkt;
85 rndis_per_packet_info *rppi;
87 rndis_pkt = &rndis_mesg->msg.packet;
88 rndis_pkt->data_offset += rppi_size;
90 rppi = (rndis_per_packet_info *)((char *)rndis_pkt +
91 rndis_pkt->per_pkt_info_offset + rndis_pkt->per_pkt_info_length);
93 rppi->size = rppi_size;
94 rppi->type = pkt_type;
95 rppi->per_packet_info_offset = sizeof(rndis_per_packet_info);
97 rndis_pkt->per_pkt_info_length += rppi_size;
103 * Get the Per-Packet-Info with the specified type
104 * return NULL if not found.
107 hv_get_ppi_data(rndis_packet *rpkt, uint32_t type)
109 rndis_per_packet_info *ppi;
112 if (rpkt->per_pkt_info_offset == 0)
115 ppi = (rndis_per_packet_info *)((unsigned long)rpkt +
116 rpkt->per_pkt_info_offset);
117 len = rpkt->per_pkt_info_length;
120 if (ppi->type == type)
121 return (void *)((unsigned long)ppi +
122 ppi->per_packet_info_offset);
125 ppi = (rndis_per_packet_info *)((unsigned long)ppi + ppi->size);
133 * Allow module_param to work and override to switch to promiscuous mode.
135 static inline rndis_device *
136 hv_get_rndis_device(void)
138 rndis_device *device;
140 device = malloc(sizeof(rndis_device), M_NETVSC, M_WAITOK | M_ZERO);
142 mtx_init(&device->req_lock, "HV-FRL", NULL, MTX_DEF);
144 /* Same effect as STAILQ_HEAD_INITIALIZER() static initializer */
145 STAILQ_INIT(&device->myrequest_list);
147 device->state = RNDIS_DEV_UNINITIALIZED;
156 hv_put_rndis_device(rndis_device *device)
158 mtx_destroy(&device->req_lock);
159 free(device, M_NETVSC);
165 static inline rndis_request *
166 hv_rndis_request(rndis_device *device, uint32_t message_type,
167 uint32_t message_length)
169 rndis_request *request;
170 rndis_msg *rndis_mesg;
171 rndis_set_request *set;
173 request = malloc(sizeof(rndis_request), M_NETVSC, M_WAITOK | M_ZERO);
175 sema_init(&request->wait_sema, 0, "rndis sema");
177 rndis_mesg = &request->request_msg;
178 rndis_mesg->ndis_msg_type = message_type;
179 rndis_mesg->msg_len = message_length;
182 * Set the request id. This field is always after the rndis header
183 * for request/response packet types so we just use the set_request
186 set = &rndis_mesg->msg.set_request;
187 set->request_id = atomic_fetchadd_int(&device->new_request_id, 1);
188 /* Increment to get the new value (call above returns old value) */
189 set->request_id += 1;
191 /* Add to the request list */
192 mtx_lock(&device->req_lock);
193 STAILQ_INSERT_TAIL(&device->myrequest_list, request, mylist_entry);
194 mtx_unlock(&device->req_lock);
203 hv_put_rndis_request(rndis_device *device, rndis_request *request)
205 mtx_lock(&device->req_lock);
206 /* Fixme: Has O(n) performance */
208 * XXXKYS: Use Doubly linked lists.
210 STAILQ_REMOVE(&device->myrequest_list, request, rndis_request_,
212 mtx_unlock(&device->req_lock);
214 sema_destroy(&request->wait_sema);
215 free(request, M_NETVSC);
222 hv_rf_send_request(rndis_device *device, rndis_request *request,
223 uint32_t message_type)
226 netvsc_packet *packet;
228 /* Set up the packet to send it */
229 packet = &request->pkt;
231 packet->is_data_pkt = FALSE;
232 packet->tot_data_buf_len = request->request_msg.msg_len;
233 packet->page_buf_count = 1;
235 packet->page_buffers[0].pfn =
236 hv_get_phys_addr(&request->request_msg) >> PAGE_SHIFT;
237 packet->page_buffers[0].length = request->request_msg.msg_len;
238 packet->page_buffers[0].offset =
239 (unsigned long)&request->request_msg & (PAGE_SIZE - 1);
241 packet->compl.send.send_completion_context = request; /* packet */
242 if (message_type != REMOTE_NDIS_HALT_MSG) {
243 packet->compl.send.on_send_completion =
244 hv_rf_on_send_request_completion;
246 packet->compl.send.on_send_completion =
247 hv_rf_on_send_request_halt_completion;
249 packet->compl.send.send_completion_tid = (unsigned long)device;
250 packet->send_buf_section_idx =
251 NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX;
252 packet->send_buf_section_size = 0;
254 ret = hv_nv_on_send(device->net_dev->dev->channel, packet);
260 * RNDIS filter receive response
263 hv_rf_receive_response(rndis_device *device, rndis_msg *response)
265 rndis_request *request = NULL;
266 rndis_request *next_request;
267 boolean_t found = FALSE;
269 mtx_lock(&device->req_lock);
270 request = STAILQ_FIRST(&device->myrequest_list);
271 while (request != NULL) {
273 * All request/response message contains request_id as the
276 if (request->request_msg.msg.init_request.request_id ==
277 response->msg.init_complete.request_id) {
281 next_request = STAILQ_NEXT(request, mylist_entry);
282 request = next_request;
284 mtx_unlock(&device->req_lock);
287 if (response->msg_len <= sizeof(rndis_msg)) {
288 memcpy(&request->response_msg, response,
291 if (response->ndis_msg_type == REMOTE_NDIS_RESET_CMPLT) {
292 /* Does not have a request id field */
293 request->response_msg.msg.reset_complete.status =
294 STATUS_BUFFER_OVERFLOW;
296 request->response_msg.msg.init_complete.status =
297 STATUS_BUFFER_OVERFLOW;
301 sema_post(&request->wait_sema);
306 hv_rf_send_offload_request(struct hv_device *device,
307 rndis_offload_params *offloads)
309 rndis_request *request;
310 rndis_set_request *set;
311 rndis_offload_params *offload_req;
312 rndis_set_complete *set_complete;
313 rndis_device *rndis_dev;
314 hn_softc_t *sc = device_get_softc(device->device);
315 device_t dev = device->device;
316 netvsc_dev *net_dev = sc->net_dev;
317 uint32_t vsp_version = net_dev->nvsp_version;
318 uint32_t extlen = sizeof(rndis_offload_params);
321 if (vsp_version <= NVSP_PROTOCOL_VERSION_4) {
322 extlen = VERSION_4_OFFLOAD_SIZE;
323 /* On NVSP_PROTOCOL_VERSION_4 and below, we do not support
324 * UDP checksum offload.
326 offloads->udp_ipv4_csum = 0;
327 offloads->udp_ipv6_csum = 0;
330 rndis_dev = net_dev->extension;
332 request = hv_rndis_request(rndis_dev, REMOTE_NDIS_SET_MSG,
333 RNDIS_MESSAGE_SIZE(rndis_set_request) + extlen);
337 set = &request->request_msg.msg.set_request;
338 set->oid = RNDIS_OID_TCP_OFFLOAD_PARAMETERS;
339 set->info_buffer_length = extlen;
340 set->info_buffer_offset = sizeof(rndis_set_request);
341 set->device_vc_handle = 0;
343 offload_req = (rndis_offload_params *)((unsigned long)set +
344 set->info_buffer_offset);
345 *offload_req = *offloads;
346 offload_req->header.type = RNDIS_OBJECT_TYPE_DEFAULT;
347 offload_req->header.revision = RNDIS_OFFLOAD_PARAMETERS_REVISION_3;
348 offload_req->header.size = extlen;
350 ret = hv_rf_send_request(rndis_dev, request, REMOTE_NDIS_SET_MSG);
352 device_printf(dev, "hv send offload request failed, ret=%d!\n",
357 ret = sema_timedwait(&request->wait_sema, 5 * hz);
359 device_printf(dev, "hv send offload request timeout\n");
363 set_complete = &request->response_msg.msg.set_complete;
364 if (set_complete->status == RNDIS_STATUS_SUCCESS) {
365 device_printf(dev, "hv send offload request succeeded\n");
368 if (set_complete->status == STATUS_NOT_SUPPORTED) {
369 device_printf(dev, "HV Not support offload\n");
372 ret = set_complete->status;
378 hv_put_rndis_request(rndis_dev, request);
384 * RNDIS filter receive indicate status
387 hv_rf_receive_indicate_status(rndis_device *device, rndis_msg *response)
389 rndis_indicate_status *indicate = &response->msg.indicate_status;
391 switch(indicate->status) {
392 case RNDIS_STATUS_MEDIA_CONNECT:
393 netvsc_linkstatus_callback(device->net_dev->dev, 1);
395 case RNDIS_STATUS_MEDIA_DISCONNECT:
396 netvsc_linkstatus_callback(device->net_dev->dev, 0);
400 device_printf(device->net_dev->dev->device,
401 "unknown status %d received\n", indicate->status);
407 * RNDIS filter receive data
410 hv_rf_receive_data(rndis_device *device, rndis_msg *message,
411 struct hv_vmbus_channel *chan, netvsc_packet *pkt)
413 rndis_packet *rndis_pkt;
414 ndis_8021q_info *rppi_vlan_info;
415 uint32_t data_offset;
416 rndis_tcp_ip_csum_info *csum_info = NULL;
417 device_t dev = device->net_dev->dev->device;
419 rndis_pkt = &message->msg.packet;
422 * Fixme: Handle multiple rndis pkt msgs that may be enclosed in this
423 * netvsc packet (ie tot_data_buf_len != message_length)
426 /* Remove rndis header, then pass data packet up the stack */
427 data_offset = RNDIS_HEADER_SIZE + rndis_pkt->data_offset;
429 pkt->tot_data_buf_len -= data_offset;
430 if (pkt->tot_data_buf_len < rndis_pkt->data_length) {
431 pkt->status = nvsp_status_failure;
433 "total length %u is less than data length %u\n",
434 pkt->tot_data_buf_len, rndis_pkt->data_length);
438 pkt->tot_data_buf_len = rndis_pkt->data_length;
439 pkt->data = (void *)((unsigned long)pkt->data + data_offset);
441 rppi_vlan_info = hv_get_ppi_data(rndis_pkt, ieee_8021q_info);
442 if (rppi_vlan_info) {
443 pkt->vlan_tci = rppi_vlan_info->u1.s1.vlan_id;
448 csum_info = hv_get_ppi_data(rndis_pkt, tcpip_chksum_info);
449 netvsc_recv(chan, pkt, csum_info);
453 * RNDIS filter on receive
456 hv_rf_on_receive(netvsc_dev *net_dev, struct hv_device *device,
457 struct hv_vmbus_channel *chan, netvsc_packet *pkt)
459 rndis_device *rndis_dev;
460 rndis_msg *rndis_hdr;
462 /* Make sure the rndis device state is initialized */
463 if (net_dev->extension == NULL) {
464 pkt->status = nvsp_status_failure;
468 rndis_dev = (rndis_device *)net_dev->extension;
469 if (rndis_dev->state == RNDIS_DEV_UNINITIALIZED) {
470 pkt->status = nvsp_status_failure;
474 rndis_hdr = pkt->data;
476 switch (rndis_hdr->ndis_msg_type) {
479 case REMOTE_NDIS_PACKET_MSG:
480 hv_rf_receive_data(rndis_dev, rndis_hdr, chan, pkt);
482 /* completion messages */
483 case REMOTE_NDIS_INITIALIZE_CMPLT:
484 case REMOTE_NDIS_QUERY_CMPLT:
485 case REMOTE_NDIS_SET_CMPLT:
486 case REMOTE_NDIS_RESET_CMPLT:
487 case REMOTE_NDIS_KEEPALIVE_CMPLT:
488 hv_rf_receive_response(rndis_dev, rndis_hdr);
490 /* notification message */
491 case REMOTE_NDIS_INDICATE_STATUS_MSG:
492 hv_rf_receive_indicate_status(rndis_dev, rndis_hdr);
495 printf("hv_rf_on_receive(): Unknown msg_type 0x%x\n",
496 rndis_hdr->ndis_msg_type);
504 * RNDIS filter query device
507 hv_rf_query_device(rndis_device *device, uint32_t oid, void *result,
508 uint32_t *result_size)
510 rndis_request *request;
511 uint32_t in_result_size = *result_size;
512 rndis_query_request *query;
513 rndis_query_complete *query_complete;
517 request = hv_rndis_request(device, REMOTE_NDIS_QUERY_MSG,
518 RNDIS_MESSAGE_SIZE(rndis_query_request));
519 if (request == NULL) {
524 /* Set up the rndis query */
525 query = &request->request_msg.msg.query_request;
527 query->info_buffer_offset = sizeof(rndis_query_request);
528 query->info_buffer_length = 0;
529 query->device_vc_handle = 0;
531 ret = hv_rf_send_request(device, request, REMOTE_NDIS_QUERY_MSG);
533 /* Fixme: printf added */
534 printf("RNDISFILTER request failed to Send!\n");
538 sema_wait(&request->wait_sema);
540 /* Copy the response back */
541 query_complete = &request->response_msg.msg.query_complete;
543 if (query_complete->info_buffer_length > in_result_size) {
548 memcpy(result, (void *)((unsigned long)query_complete +
549 query_complete->info_buffer_offset),
550 query_complete->info_buffer_length);
552 *result_size = query_complete->info_buffer_length;
556 hv_put_rndis_request(device, request);
562 * RNDIS filter query device MAC address
565 hv_rf_query_device_mac(rndis_device *device)
567 uint32_t size = HW_MACADDR_LEN;
569 return (hv_rf_query_device(device,
570 RNDIS_OID_802_3_PERMANENT_ADDRESS, device->hw_mac_addr, &size));
574 * RNDIS filter query device link status
577 hv_rf_query_device_link_status(rndis_device *device)
579 uint32_t size = sizeof(uint32_t);
581 return (hv_rf_query_device(device,
582 RNDIS_OID_GEN_MEDIA_CONNECT_STATUS, &device->link_status, &size));
586 * RNDIS filter set packet filter
587 * Sends an rndis request with the new filter, then waits for a response
589 * Returns zero on success, non-zero on failure.
592 hv_rf_set_packet_filter(rndis_device *device, uint32_t new_filter)
594 rndis_request *request;
595 rndis_set_request *set;
596 rndis_set_complete *set_complete;
600 request = hv_rndis_request(device, REMOTE_NDIS_SET_MSG,
601 RNDIS_MESSAGE_SIZE(rndis_set_request) + sizeof(uint32_t));
602 if (request == NULL) {
607 /* Set up the rndis set */
608 set = &request->request_msg.msg.set_request;
609 set->oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER;
610 set->info_buffer_length = sizeof(uint32_t);
611 set->info_buffer_offset = sizeof(rndis_set_request);
613 memcpy((void *)((unsigned long)set + sizeof(rndis_set_request)),
614 &new_filter, sizeof(uint32_t));
616 ret = hv_rf_send_request(device, request, REMOTE_NDIS_SET_MSG);
622 * Wait for the response from the host. Another thread will signal
623 * us when the response has arrived. In the failure case,
624 * sema_timedwait() returns a non-zero status after waiting 5 seconds.
626 ret = sema_timedwait(&request->wait_sema, 5 * hz);
628 /* Response received, check status */
629 set_complete = &request->response_msg.msg.set_complete;
630 status = set_complete->status;
631 if (status != RNDIS_STATUS_SUCCESS) {
632 /* Bad response status, return error */
637 * We cannot deallocate the request since we may still
638 * receive a send completion for it.
644 if (request != NULL) {
645 hv_put_rndis_request(device, request);
652 * RNDIS filter init device
655 hv_rf_init_device(rndis_device *device)
657 rndis_request *request;
658 rndis_initialize_request *init;
659 rndis_initialize_complete *init_complete;
663 request = hv_rndis_request(device, REMOTE_NDIS_INITIALIZE_MSG,
664 RNDIS_MESSAGE_SIZE(rndis_initialize_request));
670 /* Set up the rndis set */
671 init = &request->request_msg.msg.init_request;
672 init->major_version = RNDIS_MAJOR_VERSION;
673 init->minor_version = RNDIS_MINOR_VERSION;
675 * Per the RNDIS document, this should be set to the max MTU
676 * plus the header size. However, 2048 works fine, so leaving
679 init->max_xfer_size = 2048;
681 device->state = RNDIS_DEV_INITIALIZING;
683 ret = hv_rf_send_request(device, request, REMOTE_NDIS_INITIALIZE_MSG);
685 device->state = RNDIS_DEV_UNINITIALIZED;
689 sema_wait(&request->wait_sema);
691 init_complete = &request->response_msg.msg.init_complete;
692 status = init_complete->status;
693 if (status == RNDIS_STATUS_SUCCESS) {
694 device->state = RNDIS_DEV_INITIALIZED;
697 device->state = RNDIS_DEV_UNINITIALIZED;
703 hv_put_rndis_request(device, request);
709 #define HALT_COMPLETION_WAIT_COUNT 25
712 * RNDIS filter halt device
715 hv_rf_halt_device(rndis_device *device)
717 rndis_request *request;
718 rndis_halt_request *halt;
721 /* Attempt to do a rndis device halt */
722 request = hv_rndis_request(device, REMOTE_NDIS_HALT_MSG,
723 RNDIS_MESSAGE_SIZE(rndis_halt_request));
724 if (request == NULL) {
728 /* initialize "poor man's semaphore" */
729 request->halt_complete_flag = 0;
731 /* Set up the rndis set */
732 halt = &request->request_msg.msg.halt_request;
733 halt->request_id = atomic_fetchadd_int(&device->new_request_id, 1);
734 /* Increment to get the new value (call above returns old value) */
735 halt->request_id += 1;
737 ret = hv_rf_send_request(device, request, REMOTE_NDIS_HALT_MSG);
743 * Wait for halt response from halt callback. We must wait for
744 * the transaction response before freeing the request and other
747 for (i=HALT_COMPLETION_WAIT_COUNT; i > 0; i--) {
748 if (request->halt_complete_flag != 0) {
757 device->state = RNDIS_DEV_UNINITIALIZED;
759 if (request != NULL) {
760 hv_put_rndis_request(device, request);
767 * RNDIS filter open device
770 hv_rf_open_device(rndis_device *device)
774 if (device->state != RNDIS_DEV_INITIALIZED) {
778 if (hv_promisc_mode != 1) {
779 ret = hv_rf_set_packet_filter(device,
780 NDIS_PACKET_TYPE_BROADCAST |
781 NDIS_PACKET_TYPE_ALL_MULTICAST |
782 NDIS_PACKET_TYPE_DIRECTED);
784 ret = hv_rf_set_packet_filter(device,
785 NDIS_PACKET_TYPE_PROMISCUOUS);
789 device->state = RNDIS_DEV_DATAINITIALIZED;
796 * RNDIS filter close device
799 hv_rf_close_device(rndis_device *device)
803 if (device->state != RNDIS_DEV_DATAINITIALIZED) {
807 ret = hv_rf_set_packet_filter(device, 0);
809 device->state = RNDIS_DEV_INITIALIZED;
816 * RNDIS filter on device add
819 hv_rf_on_device_add(struct hv_device *device, void *additl_info)
823 rndis_device *rndis_dev;
824 rndis_offload_params offloads;
825 netvsc_device_info *dev_info = (netvsc_device_info *)additl_info;
826 device_t dev = device->device;
828 rndis_dev = hv_get_rndis_device();
829 if (rndis_dev == NULL) {
834 * Let the inner driver handle this first to create the netvsc channel
835 * NOTE! Once the channel is created, we may get a receive callback
836 * (hv_rf_on_receive()) before this call is completed.
837 * Note: Earlier code used a function pointer here.
839 net_dev = hv_nv_on_device_add(device, additl_info);
841 hv_put_rndis_device(rndis_dev);
847 * Initialize the rndis device
850 net_dev->extension = rndis_dev;
851 rndis_dev->net_dev = net_dev;
853 /* Send the rndis initialization message */
854 ret = hv_rf_init_device(rndis_dev);
857 * TODO: If rndis init failed, we will need to shut down
862 /* Get the mac address */
863 ret = hv_rf_query_device_mac(rndis_dev);
865 /* TODO: shut down rndis device and the channel */
868 /* config csum offload and send request to host */
869 memset(&offloads, 0, sizeof(offloads));
870 offloads.ipv4_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
871 offloads.tcp_ipv4_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
872 offloads.udp_ipv4_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
873 offloads.tcp_ipv6_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
874 offloads.udp_ipv6_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
875 offloads.lso_v2_ipv4 = RNDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED;
877 ret = hv_rf_send_offload_request(device, &offloads);
879 /* TODO: shut down rndis device and the channel */
881 "hv_rf_send_offload_request failed, ret=%d\n", ret);
884 memcpy(dev_info->mac_addr, rndis_dev->hw_mac_addr, HW_MACADDR_LEN);
886 hv_rf_query_device_link_status(rndis_dev);
888 dev_info->link_state = rndis_dev->link_status;
894 * RNDIS filter on device remove
897 hv_rf_on_device_remove(struct hv_device *device, boolean_t destroy_channel)
899 hn_softc_t *sc = device_get_softc(device->device);
900 netvsc_dev *net_dev = sc->net_dev;
901 rndis_device *rndis_dev = (rndis_device *)net_dev->extension;
904 /* Halt and release the rndis device */
905 ret = hv_rf_halt_device(rndis_dev);
907 hv_put_rndis_device(rndis_dev);
908 net_dev->extension = NULL;
910 /* Pass control to inner driver to remove the device */
911 ret |= hv_nv_on_device_remove(device, destroy_channel);
917 * RNDIS filter on open
920 hv_rf_on_open(struct hv_device *device)
922 hn_softc_t *sc = device_get_softc(device->device);
923 netvsc_dev *net_dev = sc->net_dev;
925 return (hv_rf_open_device((rndis_device *)net_dev->extension));
929 * RNDIS filter on close
932 hv_rf_on_close(struct hv_device *device)
934 hn_softc_t *sc = device_get_softc(device->device);
935 netvsc_dev *net_dev = sc->net_dev;
937 return (hv_rf_close_device((rndis_device *)net_dev->extension));
941 * RNDIS filter on send request completion callback
944 hv_rf_on_send_request_completion(void *context)
949 * RNDIS filter on send request (halt only) completion callback
952 hv_rf_on_send_request_halt_completion(void *context)
954 rndis_request *request = context;
957 * Notify hv_rf_halt_device() about halt completion.
958 * The halt code must wait for completion before freeing
959 * the transaction resources.
961 request->halt_complete_flag = 1;
965 hv_rf_channel_rollup(struct hv_vmbus_channel *chan)
968 netvsc_channel_rollup(chan);