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,
63 static int hv_rf_query_device(rndis_device *device, uint32_t oid,
64 void *result, uint32_t *result_size);
65 static inline int hv_rf_query_device_mac(rndis_device *device);
66 static inline int hv_rf_query_device_link_status(rndis_device *device);
67 static int hv_rf_set_packet_filter(rndis_device *device, uint32_t new_filter);
68 static int hv_rf_init_device(rndis_device *device);
69 static int hv_rf_open_device(rndis_device *device);
70 static int hv_rf_close_device(rndis_device *device);
71 static void hv_rf_on_send_request_completion(void *context);
72 static void hv_rf_on_send_request_halt_completion(void *context);
74 hv_rf_send_offload_request(struct hv_device *device,
75 rndis_offload_params *offloads);
77 * Set the Per-Packet-Info with the specified type
80 hv_set_rppi_data(rndis_msg *rndis_mesg, uint32_t rppi_size,
83 rndis_packet *rndis_pkt;
84 rndis_per_packet_info *rppi;
86 rndis_pkt = &rndis_mesg->msg.packet;
87 rndis_pkt->data_offset += rppi_size;
89 rppi = (rndis_per_packet_info *)((char *)rndis_pkt +
90 rndis_pkt->per_pkt_info_offset + rndis_pkt->per_pkt_info_length);
92 rppi->size = rppi_size;
93 rppi->type = pkt_type;
94 rppi->per_packet_info_offset = sizeof(rndis_per_packet_info);
96 rndis_pkt->per_pkt_info_length += rppi_size;
102 * Get the Per-Packet-Info with the specified type
103 * return NULL if not found.
106 hv_get_ppi_data(rndis_packet *rpkt, uint32_t type)
108 rndis_per_packet_info *ppi;
111 if (rpkt->per_pkt_info_offset == 0)
114 ppi = (rndis_per_packet_info *)((unsigned long)rpkt +
115 rpkt->per_pkt_info_offset);
116 len = rpkt->per_pkt_info_length;
119 if (ppi->type == type)
120 return (void *)((unsigned long)ppi +
121 ppi->per_packet_info_offset);
124 ppi = (rndis_per_packet_info *)((unsigned long)ppi + ppi->size);
132 * Allow module_param to work and override to switch to promiscuous mode.
134 static inline rndis_device *
135 hv_get_rndis_device(void)
137 rndis_device *device;
139 device = malloc(sizeof(rndis_device), M_NETVSC, M_WAITOK | M_ZERO);
141 mtx_init(&device->req_lock, "HV-FRL", NULL, MTX_DEF);
143 /* Same effect as STAILQ_HEAD_INITIALIZER() static initializer */
144 STAILQ_INIT(&device->myrequest_list);
146 device->state = RNDIS_DEV_UNINITIALIZED;
155 hv_put_rndis_device(rndis_device *device)
157 mtx_destroy(&device->req_lock);
158 free(device, M_NETVSC);
164 static inline rndis_request *
165 hv_rndis_request(rndis_device *device, uint32_t message_type,
166 uint32_t message_length)
168 rndis_request *request;
169 rndis_msg *rndis_mesg;
170 rndis_set_request *set;
172 request = malloc(sizeof(rndis_request), M_NETVSC, M_WAITOK | M_ZERO);
174 sema_init(&request->wait_sema, 0, "rndis sema");
176 rndis_mesg = &request->request_msg;
177 rndis_mesg->ndis_msg_type = message_type;
178 rndis_mesg->msg_len = message_length;
181 * Set the request id. This field is always after the rndis header
182 * for request/response packet types so we just use the set_request
185 set = &rndis_mesg->msg.set_request;
186 set->request_id = atomic_fetchadd_int(&device->new_request_id, 1);
187 /* Increment to get the new value (call above returns old value) */
188 set->request_id += 1;
190 /* Add to the request list */
191 mtx_lock(&device->req_lock);
192 STAILQ_INSERT_TAIL(&device->myrequest_list, request, mylist_entry);
193 mtx_unlock(&device->req_lock);
202 hv_put_rndis_request(rndis_device *device, rndis_request *request)
204 mtx_lock(&device->req_lock);
205 /* Fixme: Has O(n) performance */
207 * XXXKYS: Use Doubly linked lists.
209 STAILQ_REMOVE(&device->myrequest_list, request, rndis_request_,
211 mtx_unlock(&device->req_lock);
213 sema_destroy(&request->wait_sema);
214 free(request, M_NETVSC);
221 hv_rf_send_request(rndis_device *device, rndis_request *request,
222 uint32_t message_type)
225 netvsc_packet *packet;
227 /* Set up the packet to send it */
228 packet = &request->pkt;
230 packet->is_data_pkt = FALSE;
231 packet->tot_data_buf_len = request->request_msg.msg_len;
232 packet->page_buf_count = 1;
234 packet->page_buffers[0].pfn =
235 hv_get_phys_addr(&request->request_msg) >> PAGE_SHIFT;
236 packet->page_buffers[0].length = request->request_msg.msg_len;
237 packet->page_buffers[0].offset =
238 (unsigned long)&request->request_msg & (PAGE_SIZE - 1);
240 packet->compl.send.send_completion_context = request; /* packet */
241 if (message_type != REMOTE_NDIS_HALT_MSG) {
242 packet->compl.send.on_send_completion =
243 hv_rf_on_send_request_completion;
245 packet->compl.send.on_send_completion =
246 hv_rf_on_send_request_halt_completion;
248 packet->compl.send.send_completion_tid = (unsigned long)device;
249 packet->send_buf_section_idx =
250 NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX;
251 packet->send_buf_section_size = 0;
253 ret = hv_nv_on_send(device->net_dev->dev, packet);
259 * RNDIS filter receive response
262 hv_rf_receive_response(rndis_device *device, rndis_msg *response)
264 rndis_request *request = NULL;
265 rndis_request *next_request;
266 boolean_t found = FALSE;
268 mtx_lock(&device->req_lock);
269 request = STAILQ_FIRST(&device->myrequest_list);
270 while (request != NULL) {
272 * All request/response message contains request_id as the
275 if (request->request_msg.msg.init_request.request_id ==
276 response->msg.init_complete.request_id) {
280 next_request = STAILQ_NEXT(request, mylist_entry);
281 request = next_request;
283 mtx_unlock(&device->req_lock);
286 if (response->msg_len <= sizeof(rndis_msg)) {
287 memcpy(&request->response_msg, response,
290 if (response->ndis_msg_type == REMOTE_NDIS_RESET_CMPLT) {
291 /* Does not have a request id field */
292 request->response_msg.msg.reset_complete.status =
293 STATUS_BUFFER_OVERFLOW;
295 request->response_msg.msg.init_complete.status =
296 STATUS_BUFFER_OVERFLOW;
300 sema_post(&request->wait_sema);
305 hv_rf_send_offload_request(struct hv_device *device,
306 rndis_offload_params *offloads)
308 rndis_request *request;
309 rndis_set_request *set;
310 rndis_offload_params *offload_req;
311 rndis_set_complete *set_complete;
312 rndis_device *rndis_dev;
313 hn_softc_t *sc = device_get_softc(device->device);
314 device_t dev = device->device;
315 netvsc_dev *net_dev = sc->net_dev;
316 uint32_t vsp_version = net_dev->nvsp_version;
317 uint32_t extlen = sizeof(rndis_offload_params);
320 if (vsp_version <= NVSP_PROTOCOL_VERSION_4) {
321 extlen = VERSION_4_OFFLOAD_SIZE;
322 /* On NVSP_PROTOCOL_VERSION_4 and below, we do not support
323 * UDP checksum offload.
325 offloads->udp_ipv4_csum = 0;
326 offloads->udp_ipv6_csum = 0;
329 rndis_dev = net_dev->extension;
331 request = hv_rndis_request(rndis_dev, REMOTE_NDIS_SET_MSG,
332 RNDIS_MESSAGE_SIZE(rndis_set_request) + extlen);
336 set = &request->request_msg.msg.set_request;
337 set->oid = RNDIS_OID_TCP_OFFLOAD_PARAMETERS;
338 set->info_buffer_length = extlen;
339 set->info_buffer_offset = sizeof(rndis_set_request);
340 set->device_vc_handle = 0;
342 offload_req = (rndis_offload_params *)((unsigned long)set +
343 set->info_buffer_offset);
344 *offload_req = *offloads;
345 offload_req->header.type = RNDIS_OBJECT_TYPE_DEFAULT;
346 offload_req->header.revision = RNDIS_OFFLOAD_PARAMETERS_REVISION_3;
347 offload_req->header.size = extlen;
349 ret = hv_rf_send_request(rndis_dev, request, REMOTE_NDIS_SET_MSG);
351 device_printf(dev, "hv send offload request failed, ret=%d!\n",
356 ret = sema_timedwait(&request->wait_sema, 5 * hz);
358 device_printf(dev, "hv send offload request timeout\n");
362 set_complete = &request->response_msg.msg.set_complete;
363 if (set_complete->status == RNDIS_STATUS_SUCCESS) {
364 device_printf(dev, "hv send offload request succeeded\n");
367 if (set_complete->status == STATUS_NOT_SUPPORTED) {
368 device_printf(dev, "HV Not support offload\n");
371 ret = set_complete->status;
377 hv_put_rndis_request(rndis_dev, request);
383 * RNDIS filter receive indicate status
386 hv_rf_receive_indicate_status(rndis_device *device, rndis_msg *response)
388 rndis_indicate_status *indicate = &response->msg.indicate_status;
390 switch(indicate->status) {
391 case RNDIS_STATUS_MEDIA_CONNECT:
392 netvsc_linkstatus_callback(device->net_dev->dev, 1);
394 case RNDIS_STATUS_MEDIA_DISCONNECT:
395 netvsc_linkstatus_callback(device->net_dev->dev, 0);
399 device_printf(device->net_dev->dev->device,
400 "unknown status %d received\n", indicate->status);
406 * RNDIS filter receive data
409 hv_rf_receive_data(rndis_device *device, rndis_msg *message, netvsc_packet *pkt)
411 rndis_packet *rndis_pkt;
412 ndis_8021q_info *rppi_vlan_info;
413 uint32_t data_offset;
414 rndis_tcp_ip_csum_info *csum_info = NULL;
415 device_t dev = device->net_dev->dev->device;
417 rndis_pkt = &message->msg.packet;
420 * Fixme: Handle multiple rndis pkt msgs that may be enclosed in this
421 * netvsc packet (ie tot_data_buf_len != message_length)
424 /* Remove rndis header, then pass data packet up the stack */
425 data_offset = RNDIS_HEADER_SIZE + rndis_pkt->data_offset;
427 pkt->tot_data_buf_len -= data_offset;
428 if (pkt->tot_data_buf_len < rndis_pkt->data_length) {
429 pkt->status = nvsp_status_failure;
431 "total length %u is less than data length %u\n",
432 pkt->tot_data_buf_len, rndis_pkt->data_length);
436 pkt->tot_data_buf_len = rndis_pkt->data_length;
437 pkt->data = (void *)((unsigned long)pkt->data + data_offset);
439 rppi_vlan_info = hv_get_ppi_data(rndis_pkt, ieee_8021q_info);
440 if (rppi_vlan_info) {
441 pkt->vlan_tci = rppi_vlan_info->u1.s1.vlan_id;
446 csum_info = hv_get_ppi_data(rndis_pkt, tcpip_chksum_info);
447 netvsc_recv(device->net_dev->dev, pkt, csum_info);
451 * RNDIS filter on receive
454 hv_rf_on_receive(netvsc_dev *net_dev, struct hv_device *device, netvsc_packet *pkt)
456 rndis_device *rndis_dev;
457 rndis_msg *rndis_hdr;
459 /* Make sure the rndis device state is initialized */
460 if (net_dev->extension == NULL) {
461 pkt->status = nvsp_status_failure;
465 rndis_dev = (rndis_device *)net_dev->extension;
466 if (rndis_dev->state == RNDIS_DEV_UNINITIALIZED) {
467 pkt->status = nvsp_status_failure;
471 rndis_hdr = pkt->data;
473 switch (rndis_hdr->ndis_msg_type) {
476 case REMOTE_NDIS_PACKET_MSG:
477 hv_rf_receive_data(rndis_dev, rndis_hdr, pkt);
479 /* completion messages */
480 case REMOTE_NDIS_INITIALIZE_CMPLT:
481 case REMOTE_NDIS_QUERY_CMPLT:
482 case REMOTE_NDIS_SET_CMPLT:
483 case REMOTE_NDIS_RESET_CMPLT:
484 case REMOTE_NDIS_KEEPALIVE_CMPLT:
485 hv_rf_receive_response(rndis_dev, rndis_hdr);
487 /* notification message */
488 case REMOTE_NDIS_INDICATE_STATUS_MSG:
489 hv_rf_receive_indicate_status(rndis_dev, rndis_hdr);
492 printf("hv_rf_on_receive(): Unknown msg_type 0x%x\n",
493 rndis_hdr->ndis_msg_type);
501 * RNDIS filter query device
504 hv_rf_query_device(rndis_device *device, uint32_t oid, void *result,
505 uint32_t *result_size)
507 rndis_request *request;
508 uint32_t in_result_size = *result_size;
509 rndis_query_request *query;
510 rndis_query_complete *query_complete;
514 request = hv_rndis_request(device, REMOTE_NDIS_QUERY_MSG,
515 RNDIS_MESSAGE_SIZE(rndis_query_request));
516 if (request == NULL) {
521 /* Set up the rndis query */
522 query = &request->request_msg.msg.query_request;
524 query->info_buffer_offset = sizeof(rndis_query_request);
525 query->info_buffer_length = 0;
526 query->device_vc_handle = 0;
528 ret = hv_rf_send_request(device, request, REMOTE_NDIS_QUERY_MSG);
530 /* Fixme: printf added */
531 printf("RNDISFILTER request failed to Send!\n");
535 sema_wait(&request->wait_sema);
537 /* Copy the response back */
538 query_complete = &request->response_msg.msg.query_complete;
540 if (query_complete->info_buffer_length > in_result_size) {
545 memcpy(result, (void *)((unsigned long)query_complete +
546 query_complete->info_buffer_offset),
547 query_complete->info_buffer_length);
549 *result_size = query_complete->info_buffer_length;
553 hv_put_rndis_request(device, request);
559 * RNDIS filter query device MAC address
562 hv_rf_query_device_mac(rndis_device *device)
564 uint32_t size = HW_MACADDR_LEN;
566 return (hv_rf_query_device(device,
567 RNDIS_OID_802_3_PERMANENT_ADDRESS, device->hw_mac_addr, &size));
571 * RNDIS filter query device link status
574 hv_rf_query_device_link_status(rndis_device *device)
576 uint32_t size = sizeof(uint32_t);
578 return (hv_rf_query_device(device,
579 RNDIS_OID_GEN_MEDIA_CONNECT_STATUS, &device->link_status, &size));
583 * RNDIS filter set packet filter
584 * Sends an rndis request with the new filter, then waits for a response
586 * Returns zero on success, non-zero on failure.
589 hv_rf_set_packet_filter(rndis_device *device, uint32_t new_filter)
591 rndis_request *request;
592 rndis_set_request *set;
593 rndis_set_complete *set_complete;
597 request = hv_rndis_request(device, REMOTE_NDIS_SET_MSG,
598 RNDIS_MESSAGE_SIZE(rndis_set_request) + sizeof(uint32_t));
599 if (request == NULL) {
604 /* Set up the rndis set */
605 set = &request->request_msg.msg.set_request;
606 set->oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER;
607 set->info_buffer_length = sizeof(uint32_t);
608 set->info_buffer_offset = sizeof(rndis_set_request);
610 memcpy((void *)((unsigned long)set + sizeof(rndis_set_request)),
611 &new_filter, sizeof(uint32_t));
613 ret = hv_rf_send_request(device, request, REMOTE_NDIS_SET_MSG);
619 * Wait for the response from the host. Another thread will signal
620 * us when the response has arrived. In the failure case,
621 * sema_timedwait() returns a non-zero status after waiting 5 seconds.
623 ret = sema_timedwait(&request->wait_sema, 5 * hz);
625 /* Response received, check status */
626 set_complete = &request->response_msg.msg.set_complete;
627 status = set_complete->status;
628 if (status != RNDIS_STATUS_SUCCESS) {
629 /* Bad response status, return error */
634 * We cannot deallocate the request since we may still
635 * receive a send completion for it.
641 if (request != NULL) {
642 hv_put_rndis_request(device, request);
649 * RNDIS filter init device
652 hv_rf_init_device(rndis_device *device)
654 rndis_request *request;
655 rndis_initialize_request *init;
656 rndis_initialize_complete *init_complete;
660 request = hv_rndis_request(device, REMOTE_NDIS_INITIALIZE_MSG,
661 RNDIS_MESSAGE_SIZE(rndis_initialize_request));
667 /* Set up the rndis set */
668 init = &request->request_msg.msg.init_request;
669 init->major_version = RNDIS_MAJOR_VERSION;
670 init->minor_version = RNDIS_MINOR_VERSION;
672 * Per the RNDIS document, this should be set to the max MTU
673 * plus the header size. However, 2048 works fine, so leaving
676 init->max_xfer_size = 2048;
678 device->state = RNDIS_DEV_INITIALIZING;
680 ret = hv_rf_send_request(device, request, REMOTE_NDIS_INITIALIZE_MSG);
682 device->state = RNDIS_DEV_UNINITIALIZED;
686 sema_wait(&request->wait_sema);
688 init_complete = &request->response_msg.msg.init_complete;
689 status = init_complete->status;
690 if (status == RNDIS_STATUS_SUCCESS) {
691 device->state = RNDIS_DEV_INITIALIZED;
694 device->state = RNDIS_DEV_UNINITIALIZED;
700 hv_put_rndis_request(device, request);
706 #define HALT_COMPLETION_WAIT_COUNT 25
709 * RNDIS filter halt device
712 hv_rf_halt_device(rndis_device *device)
714 rndis_request *request;
715 rndis_halt_request *halt;
718 /* Attempt to do a rndis device halt */
719 request = hv_rndis_request(device, REMOTE_NDIS_HALT_MSG,
720 RNDIS_MESSAGE_SIZE(rndis_halt_request));
721 if (request == NULL) {
725 /* initialize "poor man's semaphore" */
726 request->halt_complete_flag = 0;
728 /* Set up the rndis set */
729 halt = &request->request_msg.msg.halt_request;
730 halt->request_id = atomic_fetchadd_int(&device->new_request_id, 1);
731 /* Increment to get the new value (call above returns old value) */
732 halt->request_id += 1;
734 ret = hv_rf_send_request(device, request, REMOTE_NDIS_HALT_MSG);
740 * Wait for halt response from halt callback. We must wait for
741 * the transaction response before freeing the request and other
744 for (i=HALT_COMPLETION_WAIT_COUNT; i > 0; i--) {
745 if (request->halt_complete_flag != 0) {
754 device->state = RNDIS_DEV_UNINITIALIZED;
756 if (request != NULL) {
757 hv_put_rndis_request(device, request);
764 * RNDIS filter open device
767 hv_rf_open_device(rndis_device *device)
771 if (device->state != RNDIS_DEV_INITIALIZED) {
775 if (hv_promisc_mode != 1) {
776 ret = hv_rf_set_packet_filter(device,
777 NDIS_PACKET_TYPE_BROADCAST |
778 NDIS_PACKET_TYPE_ALL_MULTICAST |
779 NDIS_PACKET_TYPE_DIRECTED);
781 ret = hv_rf_set_packet_filter(device,
782 NDIS_PACKET_TYPE_PROMISCUOUS);
786 device->state = RNDIS_DEV_DATAINITIALIZED;
793 * RNDIS filter close device
796 hv_rf_close_device(rndis_device *device)
800 if (device->state != RNDIS_DEV_DATAINITIALIZED) {
804 ret = hv_rf_set_packet_filter(device, 0);
806 device->state = RNDIS_DEV_INITIALIZED;
813 * RNDIS filter on device add
816 hv_rf_on_device_add(struct hv_device *device, void *additl_info)
820 rndis_device *rndis_dev;
821 rndis_offload_params offloads;
822 netvsc_device_info *dev_info = (netvsc_device_info *)additl_info;
823 device_t dev = device->device;
825 rndis_dev = hv_get_rndis_device();
826 if (rndis_dev == NULL) {
831 * Let the inner driver handle this first to create the netvsc channel
832 * NOTE! Once the channel is created, we may get a receive callback
833 * (hv_rf_on_receive()) before this call is completed.
834 * Note: Earlier code used a function pointer here.
836 net_dev = hv_nv_on_device_add(device, additl_info);
838 hv_put_rndis_device(rndis_dev);
844 * Initialize the rndis device
847 net_dev->extension = rndis_dev;
848 rndis_dev->net_dev = net_dev;
850 /* Send the rndis initialization message */
851 ret = hv_rf_init_device(rndis_dev);
854 * TODO: If rndis init failed, we will need to shut down
859 /* Get the mac address */
860 ret = hv_rf_query_device_mac(rndis_dev);
862 /* TODO: shut down rndis device and the channel */
865 /* config csum offload and send request to host */
866 memset(&offloads, 0, sizeof(offloads));
867 offloads.ipv4_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
868 offloads.tcp_ipv4_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
869 offloads.udp_ipv4_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
870 offloads.tcp_ipv6_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
871 offloads.udp_ipv6_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED;
872 offloads.lso_v2_ipv4 = RNDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED;
874 ret = hv_rf_send_offload_request(device, &offloads);
876 /* TODO: shut down rndis device and the channel */
878 "hv_rf_send_offload_request failed, ret=%d\n", ret);
881 memcpy(dev_info->mac_addr, rndis_dev->hw_mac_addr, HW_MACADDR_LEN);
883 hv_rf_query_device_link_status(rndis_dev);
885 dev_info->link_state = rndis_dev->link_status;
891 * RNDIS filter on device remove
894 hv_rf_on_device_remove(struct hv_device *device, boolean_t destroy_channel)
896 hn_softc_t *sc = device_get_softc(device->device);
897 netvsc_dev *net_dev = sc->net_dev;
898 rndis_device *rndis_dev = (rndis_device *)net_dev->extension;
901 /* Halt and release the rndis device */
902 ret = hv_rf_halt_device(rndis_dev);
904 hv_put_rndis_device(rndis_dev);
905 net_dev->extension = NULL;
907 /* Pass control to inner driver to remove the device */
908 ret |= hv_nv_on_device_remove(device, destroy_channel);
914 * RNDIS filter on open
917 hv_rf_on_open(struct hv_device *device)
919 hn_softc_t *sc = device_get_softc(device->device);
920 netvsc_dev *net_dev = sc->net_dev;
922 return (hv_rf_open_device((rndis_device *)net_dev->extension));
926 * RNDIS filter on close
929 hv_rf_on_close(struct hv_device *device)
931 hn_softc_t *sc = device_get_softc(device->device);
932 netvsc_dev *net_dev = sc->net_dev;
934 return (hv_rf_close_device((rndis_device *)net_dev->extension));
938 * RNDIS filter on send request completion callback
941 hv_rf_on_send_request_completion(void *context)
946 * RNDIS filter on send request (halt only) completion callback
949 hv_rf_on_send_request_halt_completion(void *context)
951 rndis_request *request = context;
954 * Notify hv_rf_halt_device() about halt completion.
955 * The halt code must wait for completion before freeing
956 * the transaction resources.
958 request->halt_complete_flag = 1;
962 * RNDIS filter when "all" reception is done
965 hv_rf_receive_rollup(netvsc_dev *net_dev)
967 rndis_device *rndis_dev;
969 rndis_dev = (rndis_device *)net_dev->extension;
970 netvsc_recv_rollup(rndis_dev->net_dev->dev);
974 hv_rf_channel_rollup(netvsc_dev *net_dev)
976 rndis_device *rndis_dev;
978 rndis_dev = (rndis_device *)net_dev->extension;
981 * This could be called pretty early, so we need
982 * to make sure everything has been setup.
984 if (rndis_dev == NULL ||
985 rndis_dev->net_dev == NULL ||
986 rndis_dev->net_dev->dev == NULL)
988 netvsc_channel_rollup(rndis_dev->net_dev->dev);