Index: head/sys/dev/hyperv/netvsc/hv_rndis_filter.c =================================================================== --- head/sys/dev/hyperv/netvsc/hv_rndis_filter.c (revision 296027) +++ head/sys/dev/hyperv/netvsc/hv_rndis_filter.c (revision 296028) @@ -1,988 +1,988 @@ /*- * 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. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "hv_net_vsc.h" #include "hv_rndis.h" #include "hv_rndis_filter.h" /* * Forward declarations */ static int hv_rf_send_request(rndis_device *device, rndis_request *request, uint32_t message_type); static void hv_rf_receive_response(rndis_device *device, rndis_msg *response); static void hv_rf_receive_indicate_status(rndis_device *device, rndis_msg *response); static void hv_rf_receive_data(rndis_device *device, rndis_msg *message, netvsc_packet *pkt); static int hv_rf_query_device(rndis_device *device, uint32_t oid, void *result, uint32_t *result_size); static inline int hv_rf_query_device_mac(rndis_device *device); static inline int hv_rf_query_device_link_status(rndis_device *device); static int hv_rf_set_packet_filter(rndis_device *device, uint32_t new_filter); static int hv_rf_init_device(rndis_device *device); static int hv_rf_open_device(rndis_device *device); static int hv_rf_close_device(rndis_device *device); static void hv_rf_on_send_request_completion(void *context); static void hv_rf_on_send_request_halt_completion(void *context); int hv_rf_send_offload_request(struct hv_device *device, rndis_offload_params *offloads); /* * Set the Per-Packet-Info with the specified type */ void * hv_set_rppi_data(rndis_msg *rndis_mesg, uint32_t rppi_size, int pkt_type) { rndis_packet *rndis_pkt; rndis_per_packet_info *rppi; rndis_pkt = &rndis_mesg->msg.packet; rndis_pkt->data_offset += rppi_size; rppi = (rndis_per_packet_info *)((char *)rndis_pkt + rndis_pkt->per_pkt_info_offset + rndis_pkt->per_pkt_info_length); rppi->size = rppi_size; rppi->type = pkt_type; rppi->per_packet_info_offset = sizeof(rndis_per_packet_info); rndis_pkt->per_pkt_info_length += rppi_size; return (rppi); } /* * Get the Per-Packet-Info with the specified type * return NULL if not found. */ void * hv_get_ppi_data(rndis_packet *rpkt, uint32_t type) { rndis_per_packet_info *ppi; int len; if (rpkt->per_pkt_info_offset == 0) return (NULL); ppi = (rndis_per_packet_info *)((unsigned long)rpkt + rpkt->per_pkt_info_offset); len = rpkt->per_pkt_info_length; while (len > 0) { if (ppi->type == type) return (void *)((unsigned long)ppi + ppi->per_packet_info_offset); len -= ppi->size; ppi = (rndis_per_packet_info *)((unsigned long)ppi + ppi->size); } return (NULL); } /* * Allow module_param to work and override to switch to promiscuous mode. */ static inline rndis_device * hv_get_rndis_device(void) { rndis_device *device; device = malloc(sizeof(rndis_device), M_NETVSC, M_WAITOK | M_ZERO); mtx_init(&device->req_lock, "HV-FRL", NULL, MTX_DEF); /* Same effect as STAILQ_HEAD_INITIALIZER() static initializer */ STAILQ_INIT(&device->myrequest_list); device->state = RNDIS_DEV_UNINITIALIZED; return (device); } /* * */ static inline void hv_put_rndis_device(rndis_device *device) { mtx_destroy(&device->req_lock); free(device, M_NETVSC); } /* * */ static inline rndis_request * hv_rndis_request(rndis_device *device, uint32_t message_type, uint32_t message_length) { rndis_request *request; rndis_msg *rndis_mesg; rndis_set_request *set; request = malloc(sizeof(rndis_request), M_NETVSC, M_WAITOK | M_ZERO); sema_init(&request->wait_sema, 0, "rndis sema"); rndis_mesg = &request->request_msg; rndis_mesg->ndis_msg_type = message_type; rndis_mesg->msg_len = message_length; /* * Set the request id. This field is always after the rndis header * for request/response packet types so we just use the set_request * as a template. */ set = &rndis_mesg->msg.set_request; set->request_id = atomic_fetchadd_int(&device->new_request_id, 1); /* Increment to get the new value (call above returns old value) */ set->request_id += 1; /* Add to the request list */ mtx_lock(&device->req_lock); STAILQ_INSERT_TAIL(&device->myrequest_list, request, mylist_entry); mtx_unlock(&device->req_lock); return (request); } /* * */ static inline void hv_put_rndis_request(rndis_device *device, rndis_request *request) { mtx_lock(&device->req_lock); /* Fixme: Has O(n) performance */ /* * XXXKYS: Use Doubly linked lists. */ STAILQ_REMOVE(&device->myrequest_list, request, rndis_request_, mylist_entry); mtx_unlock(&device->req_lock); sema_destroy(&request->wait_sema); free(request, M_NETVSC); } /* * */ static int hv_rf_send_request(rndis_device *device, rndis_request *request, uint32_t message_type) { int ret; netvsc_packet *packet; /* Set up the packet to send it */ packet = &request->pkt; packet->is_data_pkt = FALSE; packet->tot_data_buf_len = request->request_msg.msg_len; packet->page_buf_count = 1; packet->page_buffers[0].pfn = hv_get_phys_addr(&request->request_msg) >> PAGE_SHIFT; packet->page_buffers[0].length = request->request_msg.msg_len; packet->page_buffers[0].offset = (unsigned long)&request->request_msg & (PAGE_SIZE - 1); packet->compl.send.send_completion_context = request; /* packet */ if (message_type != REMOTE_NDIS_HALT_MSG) { packet->compl.send.on_send_completion = hv_rf_on_send_request_completion; } else { packet->compl.send.on_send_completion = hv_rf_on_send_request_halt_completion; } packet->compl.send.send_completion_tid = (unsigned long)device; packet->send_buf_section_idx = NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX; packet->send_buf_section_size = 0; ret = hv_nv_on_send(device->net_dev->dev, packet); return (ret); } /* * RNDIS filter receive response */ static void hv_rf_receive_response(rndis_device *device, rndis_msg *response) { rndis_request *request = NULL; rndis_request *next_request; boolean_t found = FALSE; mtx_lock(&device->req_lock); request = STAILQ_FIRST(&device->myrequest_list); while (request != NULL) { /* * All request/response message contains request_id as the * first field */ if (request->request_msg.msg.init_request.request_id == response->msg.init_complete.request_id) { found = TRUE; break; } next_request = STAILQ_NEXT(request, mylist_entry); request = next_request; } mtx_unlock(&device->req_lock); if (found) { if (response->msg_len <= sizeof(rndis_msg)) { memcpy(&request->response_msg, response, response->msg_len); } else { if (response->ndis_msg_type == REMOTE_NDIS_RESET_CMPLT) { /* Does not have a request id field */ request->response_msg.msg.reset_complete.status = STATUS_BUFFER_OVERFLOW; } else { request->response_msg.msg.init_complete.status = STATUS_BUFFER_OVERFLOW; } } sema_post(&request->wait_sema); } } int hv_rf_send_offload_request(struct hv_device *device, rndis_offload_params *offloads) { rndis_request *request; rndis_set_request *set; rndis_offload_params *offload_req; rndis_set_complete *set_complete; rndis_device *rndis_dev; hn_softc_t *sc = device_get_softc(device->device); device_t dev = device->device; netvsc_dev *net_dev = sc->net_dev; uint32_t vsp_version = net_dev->nvsp_version; uint32_t extlen = sizeof(rndis_offload_params); int ret; if (vsp_version <= NVSP_PROTOCOL_VERSION_4) { extlen = VERSION_4_OFFLOAD_SIZE; /* On NVSP_PROTOCOL_VERSION_4 and below, we do not support * UDP checksum offload. */ offloads->udp_ipv4_csum = 0; offloads->udp_ipv6_csum = 0; } rndis_dev = net_dev->extension; request = hv_rndis_request(rndis_dev, REMOTE_NDIS_SET_MSG, RNDIS_MESSAGE_SIZE(rndis_set_request) + extlen); if (!request) return (ENOMEM); set = &request->request_msg.msg.set_request; set->oid = RNDIS_OID_TCP_OFFLOAD_PARAMETERS; set->info_buffer_length = extlen; set->info_buffer_offset = sizeof(rndis_set_request); set->device_vc_handle = 0; offload_req = (rndis_offload_params *)((unsigned long)set + set->info_buffer_offset); *offload_req = *offloads; offload_req->header.type = RNDIS_OBJECT_TYPE_DEFAULT; offload_req->header.revision = RNDIS_OFFLOAD_PARAMETERS_REVISION_3; offload_req->header.size = extlen; ret = hv_rf_send_request(rndis_dev, request, REMOTE_NDIS_SET_MSG); if (ret != 0) { device_printf(dev, "hv send offload request failed, ret=%d!\n", ret); goto cleanup; } - ret = sema_timedwait(&request->wait_sema, 500); + ret = sema_timedwait(&request->wait_sema, 5 * hz); if (ret != 0) { device_printf(dev, "hv send offload request timeout\n"); goto cleanup; } set_complete = &request->response_msg.msg.set_complete; if (set_complete->status == RNDIS_STATUS_SUCCESS) { device_printf(dev, "hv send offload request succeeded\n"); ret = 0; } else { if (set_complete->status == STATUS_NOT_SUPPORTED) { device_printf(dev, "HV Not support offload\n"); ret = 0; } else { ret = set_complete->status; } } cleanup: if (request) hv_put_rndis_request(rndis_dev, request); return (ret); } /* * RNDIS filter receive indicate status */ static void hv_rf_receive_indicate_status(rndis_device *device, rndis_msg *response) { rndis_indicate_status *indicate = &response->msg.indicate_status; switch(indicate->status) { case RNDIS_STATUS_MEDIA_CONNECT: netvsc_linkstatus_callback(device->net_dev->dev, 1); break; case RNDIS_STATUS_MEDIA_DISCONNECT: netvsc_linkstatus_callback(device->net_dev->dev, 0); break; default: /* TODO: */ device_printf(device->net_dev->dev->device, "unknown status %d received\n", indicate->status); break; } } /* * RNDIS filter receive data */ static void hv_rf_receive_data(rndis_device *device, rndis_msg *message, netvsc_packet *pkt) { rndis_packet *rndis_pkt; ndis_8021q_info *rppi_vlan_info; uint32_t data_offset; rndis_tcp_ip_csum_info *csum_info = NULL; device_t dev = device->net_dev->dev->device; rndis_pkt = &message->msg.packet; /* * Fixme: Handle multiple rndis pkt msgs that may be enclosed in this * netvsc packet (ie tot_data_buf_len != message_length) */ /* Remove rndis header, then pass data packet up the stack */ data_offset = RNDIS_HEADER_SIZE + rndis_pkt->data_offset; pkt->tot_data_buf_len -= data_offset; if (pkt->tot_data_buf_len < rndis_pkt->data_length) { pkt->status = nvsp_status_failure; device_printf(dev, "total length %u is less than data length %u\n", pkt->tot_data_buf_len, rndis_pkt->data_length); return; } pkt->tot_data_buf_len = rndis_pkt->data_length; pkt->data = (void *)((unsigned long)pkt->data + data_offset); rppi_vlan_info = hv_get_ppi_data(rndis_pkt, ieee_8021q_info); if (rppi_vlan_info) { pkt->vlan_tci = rppi_vlan_info->u1.s1.vlan_id; } else { pkt->vlan_tci = 0; } csum_info = hv_get_ppi_data(rndis_pkt, tcpip_chksum_info); netvsc_recv(device->net_dev->dev, pkt, csum_info); } /* * RNDIS filter on receive */ int hv_rf_on_receive(netvsc_dev *net_dev, struct hv_device *device, netvsc_packet *pkt) { rndis_device *rndis_dev; rndis_msg *rndis_hdr; /* Make sure the rndis device state is initialized */ if (net_dev->extension == NULL) { pkt->status = nvsp_status_failure; return (ENODEV); } rndis_dev = (rndis_device *)net_dev->extension; if (rndis_dev->state == RNDIS_DEV_UNINITIALIZED) { pkt->status = nvsp_status_failure; return (EINVAL); } rndis_hdr = pkt->data; switch (rndis_hdr->ndis_msg_type) { /* data message */ case REMOTE_NDIS_PACKET_MSG: hv_rf_receive_data(rndis_dev, rndis_hdr, pkt); break; /* completion messages */ case REMOTE_NDIS_INITIALIZE_CMPLT: case REMOTE_NDIS_QUERY_CMPLT: case REMOTE_NDIS_SET_CMPLT: case REMOTE_NDIS_RESET_CMPLT: case REMOTE_NDIS_KEEPALIVE_CMPLT: hv_rf_receive_response(rndis_dev, rndis_hdr); break; /* notification message */ case REMOTE_NDIS_INDICATE_STATUS_MSG: hv_rf_receive_indicate_status(rndis_dev, rndis_hdr); break; default: printf("hv_rf_on_receive(): Unknown msg_type 0x%x\n", rndis_hdr->ndis_msg_type); break; } return (0); } /* * RNDIS filter query device */ static int hv_rf_query_device(rndis_device *device, uint32_t oid, void *result, uint32_t *result_size) { rndis_request *request; uint32_t in_result_size = *result_size; rndis_query_request *query; rndis_query_complete *query_complete; int ret = 0; *result_size = 0; request = hv_rndis_request(device, REMOTE_NDIS_QUERY_MSG, RNDIS_MESSAGE_SIZE(rndis_query_request)); if (request == NULL) { ret = -1; goto cleanup; } /* Set up the rndis query */ query = &request->request_msg.msg.query_request; query->oid = oid; query->info_buffer_offset = sizeof(rndis_query_request); query->info_buffer_length = 0; query->device_vc_handle = 0; ret = hv_rf_send_request(device, request, REMOTE_NDIS_QUERY_MSG); if (ret != 0) { /* Fixme: printf added */ printf("RNDISFILTER request failed to Send!\n"); goto cleanup; } sema_wait(&request->wait_sema); /* Copy the response back */ query_complete = &request->response_msg.msg.query_complete; if (query_complete->info_buffer_length > in_result_size) { ret = EINVAL; goto cleanup; } memcpy(result, (void *)((unsigned long)query_complete + query_complete->info_buffer_offset), query_complete->info_buffer_length); *result_size = query_complete->info_buffer_length; cleanup: if (request != NULL) hv_put_rndis_request(device, request); return (ret); } /* * RNDIS filter query device MAC address */ static inline int hv_rf_query_device_mac(rndis_device *device) { uint32_t size = HW_MACADDR_LEN; return (hv_rf_query_device(device, RNDIS_OID_802_3_PERMANENT_ADDRESS, device->hw_mac_addr, &size)); } /* * RNDIS filter query device link status */ static inline int hv_rf_query_device_link_status(rndis_device *device) { uint32_t size = sizeof(uint32_t); return (hv_rf_query_device(device, RNDIS_OID_GEN_MEDIA_CONNECT_STATUS, &device->link_status, &size)); } /* * RNDIS filter set packet filter * Sends an rndis request with the new filter, then waits for a response * from the host. * Returns zero on success, non-zero on failure. */ static int hv_rf_set_packet_filter(rndis_device *device, uint32_t new_filter) { rndis_request *request; rndis_set_request *set; rndis_set_complete *set_complete; uint32_t status; int ret; request = hv_rndis_request(device, REMOTE_NDIS_SET_MSG, RNDIS_MESSAGE_SIZE(rndis_set_request) + sizeof(uint32_t)); if (request == NULL) { ret = -1; goto cleanup; } /* Set up the rndis set */ set = &request->request_msg.msg.set_request; set->oid = RNDIS_OID_GEN_CURRENT_PACKET_FILTER; set->info_buffer_length = sizeof(uint32_t); set->info_buffer_offset = sizeof(rndis_set_request); memcpy((void *)((unsigned long)set + sizeof(rndis_set_request)), &new_filter, sizeof(uint32_t)); ret = hv_rf_send_request(device, request, REMOTE_NDIS_SET_MSG); if (ret != 0) { goto cleanup; } /* * Wait for the response from the host. Another thread will signal * us when the response has arrived. In the failure case, * sema_timedwait() returns a non-zero status after waiting 5 seconds. */ - ret = sema_timedwait(&request->wait_sema, 500); + ret = sema_timedwait(&request->wait_sema, 5 * hz); if (ret == 0) { /* Response received, check status */ set_complete = &request->response_msg.msg.set_complete; status = set_complete->status; if (status != RNDIS_STATUS_SUCCESS) { /* Bad response status, return error */ ret = -2; } } else { /* * We cannot deallocate the request since we may still * receive a send completion for it. */ goto exit; } cleanup: if (request != NULL) { hv_put_rndis_request(device, request); } exit: return (ret); } /* * RNDIS filter init device */ static int hv_rf_init_device(rndis_device *device) { rndis_request *request; rndis_initialize_request *init; rndis_initialize_complete *init_complete; uint32_t status; int ret; request = hv_rndis_request(device, REMOTE_NDIS_INITIALIZE_MSG, RNDIS_MESSAGE_SIZE(rndis_initialize_request)); if (!request) { ret = -1; goto cleanup; } /* Set up the rndis set */ init = &request->request_msg.msg.init_request; init->major_version = RNDIS_MAJOR_VERSION; init->minor_version = RNDIS_MINOR_VERSION; /* * Per the RNDIS document, this should be set to the max MTU * plus the header size. However, 2048 works fine, so leaving * it as is. */ init->max_xfer_size = 2048; device->state = RNDIS_DEV_INITIALIZING; ret = hv_rf_send_request(device, request, REMOTE_NDIS_INITIALIZE_MSG); if (ret != 0) { device->state = RNDIS_DEV_UNINITIALIZED; goto cleanup; } sema_wait(&request->wait_sema); init_complete = &request->response_msg.msg.init_complete; status = init_complete->status; if (status == RNDIS_STATUS_SUCCESS) { device->state = RNDIS_DEV_INITIALIZED; ret = 0; } else { device->state = RNDIS_DEV_UNINITIALIZED; ret = -1; } cleanup: if (request) { hv_put_rndis_request(device, request); } return (ret); } #define HALT_COMPLETION_WAIT_COUNT 25 /* * RNDIS filter halt device */ static int hv_rf_halt_device(rndis_device *device) { rndis_request *request; rndis_halt_request *halt; int i, ret; /* Attempt to do a rndis device halt */ request = hv_rndis_request(device, REMOTE_NDIS_HALT_MSG, RNDIS_MESSAGE_SIZE(rndis_halt_request)); if (request == NULL) { return (-1); } /* initialize "poor man's semaphore" */ request->halt_complete_flag = 0; /* Set up the rndis set */ halt = &request->request_msg.msg.halt_request; halt->request_id = atomic_fetchadd_int(&device->new_request_id, 1); /* Increment to get the new value (call above returns old value) */ halt->request_id += 1; ret = hv_rf_send_request(device, request, REMOTE_NDIS_HALT_MSG); if (ret != 0) { return (-1); } /* * Wait for halt response from halt callback. We must wait for * the transaction response before freeing the request and other * resources. */ for (i=HALT_COMPLETION_WAIT_COUNT; i > 0; i--) { if (request->halt_complete_flag != 0) { break; } DELAY(400); } if (i == 0) { return (-1); } device->state = RNDIS_DEV_UNINITIALIZED; if (request != NULL) { hv_put_rndis_request(device, request); } return (0); } /* * RNDIS filter open device */ static int hv_rf_open_device(rndis_device *device) { int ret; if (device->state != RNDIS_DEV_INITIALIZED) { return (0); } if (hv_promisc_mode != 1) { ret = hv_rf_set_packet_filter(device, NDIS_PACKET_TYPE_BROADCAST | NDIS_PACKET_TYPE_ALL_MULTICAST | NDIS_PACKET_TYPE_DIRECTED); } else { ret = hv_rf_set_packet_filter(device, NDIS_PACKET_TYPE_PROMISCUOUS); } if (ret == 0) { device->state = RNDIS_DEV_DATAINITIALIZED; } return (ret); } /* * RNDIS filter close device */ static int hv_rf_close_device(rndis_device *device) { int ret; if (device->state != RNDIS_DEV_DATAINITIALIZED) { return (0); } ret = hv_rf_set_packet_filter(device, 0); if (ret == 0) { device->state = RNDIS_DEV_INITIALIZED; } return (ret); } /* * RNDIS filter on device add */ int hv_rf_on_device_add(struct hv_device *device, void *additl_info) { int ret; netvsc_dev *net_dev; rndis_device *rndis_dev; rndis_offload_params offloads; netvsc_device_info *dev_info = (netvsc_device_info *)additl_info; device_t dev = device->device; rndis_dev = hv_get_rndis_device(); if (rndis_dev == NULL) { return (ENOMEM); } /* * Let the inner driver handle this first to create the netvsc channel * NOTE! Once the channel is created, we may get a receive callback * (hv_rf_on_receive()) before this call is completed. * Note: Earlier code used a function pointer here. */ net_dev = hv_nv_on_device_add(device, additl_info); if (!net_dev) { hv_put_rndis_device(rndis_dev); return (ENOMEM); } /* * Initialize the rndis device */ net_dev->extension = rndis_dev; rndis_dev->net_dev = net_dev; /* Send the rndis initialization message */ ret = hv_rf_init_device(rndis_dev); if (ret != 0) { /* * TODO: If rndis init failed, we will need to shut down * the channel */ } /* Get the mac address */ ret = hv_rf_query_device_mac(rndis_dev); if (ret != 0) { /* TODO: shut down rndis device and the channel */ } /* config csum offload and send request to host */ memset(&offloads, 0, sizeof(offloads)); offloads.ipv4_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED; offloads.tcp_ipv4_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED; offloads.udp_ipv4_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED; offloads.tcp_ipv6_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED; offloads.udp_ipv6_csum = RNDIS_OFFLOAD_PARAMETERS_TX_RX_ENABLED; offloads.lso_v2_ipv4 = RNDIS_OFFLOAD_PARAMETERS_LSOV2_ENABLED; ret = hv_rf_send_offload_request(device, &offloads); if (ret != 0) { /* TODO: shut down rndis device and the channel */ device_printf(dev, "hv_rf_send_offload_request failed, ret=%d\n", ret); } memcpy(dev_info->mac_addr, rndis_dev->hw_mac_addr, HW_MACADDR_LEN); hv_rf_query_device_link_status(rndis_dev); dev_info->link_state = rndis_dev->link_status; return (ret); } /* * RNDIS filter on device remove */ int hv_rf_on_device_remove(struct hv_device *device, boolean_t destroy_channel) { hn_softc_t *sc = device_get_softc(device->device); netvsc_dev *net_dev = sc->net_dev; rndis_device *rndis_dev = (rndis_device *)net_dev->extension; int ret; /* Halt and release the rndis device */ ret = hv_rf_halt_device(rndis_dev); hv_put_rndis_device(rndis_dev); net_dev->extension = NULL; /* Pass control to inner driver to remove the device */ ret |= hv_nv_on_device_remove(device, destroy_channel); return (ret); } /* * RNDIS filter on open */ int hv_rf_on_open(struct hv_device *device) { hn_softc_t *sc = device_get_softc(device->device); netvsc_dev *net_dev = sc->net_dev; return (hv_rf_open_device((rndis_device *)net_dev->extension)); } /* * RNDIS filter on close */ int hv_rf_on_close(struct hv_device *device) { hn_softc_t *sc = device_get_softc(device->device); netvsc_dev *net_dev = sc->net_dev; return (hv_rf_close_device((rndis_device *)net_dev->extension)); } /* * RNDIS filter on send request completion callback */ static void hv_rf_on_send_request_completion(void *context) { } /* * RNDIS filter on send request (halt only) completion callback */ static void hv_rf_on_send_request_halt_completion(void *context) { rndis_request *request = context; /* * Notify hv_rf_halt_device() about halt completion. * The halt code must wait for completion before freeing * the transaction resources. */ request->halt_complete_flag = 1; } /* * RNDIS filter when "all" reception is done */ void hv_rf_receive_rollup(netvsc_dev *net_dev) { rndis_device *rndis_dev; rndis_dev = (rndis_device *)net_dev->extension; netvsc_recv_rollup(rndis_dev->net_dev->dev); } void hv_rf_channel_rollup(netvsc_dev *net_dev) { rndis_device *rndis_dev; rndis_dev = (rndis_device *)net_dev->extension; /* * This could be called pretty early, so we need * to make sure everything has been setup. */ if (rndis_dev == NULL || rndis_dev->net_dev == NULL || rndis_dev->net_dev->dev == NULL) return; netvsc_channel_rollup(rndis_dev->net_dev->dev); } Index: head/sys/dev/hyperv/vmbus/hv_channel.c =================================================================== --- head/sys/dev/hyperv/vmbus/hv_channel.c (revision 296027) +++ head/sys/dev/hyperv/vmbus/hv_channel.c (revision 296028) @@ -1,950 +1,951 @@ /*- * Copyright (c) 2009-2012 Microsoft Corp. * Copyright (c) 2012 NetApp Inc. * Copyright (c) 2012 Citrix 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. */ #include __FBSDID("$FreeBSD$"); #include +#include #include #include #include #include #include #include #include #include #include #include "hv_vmbus_priv.h" static int vmbus_channel_create_gpadl_header( /* must be phys and virt contiguous*/ void* contig_buffer, /* page-size multiple */ uint32_t size, hv_vmbus_channel_msg_info** msg_info, uint32_t* message_count); static void vmbus_channel_set_event(hv_vmbus_channel* channel); static void VmbusProcessChannelEvent(void* channel, int pending); /** * @brief Trigger an event notification on the specified channel */ static void vmbus_channel_set_event(hv_vmbus_channel *channel) { hv_vmbus_monitor_page *monitor_page; if (channel->offer_msg.monitor_allocated) { /* Each uint32_t represents 32 channels */ synch_set_bit((channel->offer_msg.child_rel_id & 31), ((uint32_t *)hv_vmbus_g_connection.send_interrupt_page + ((channel->offer_msg.child_rel_id >> 5)))); monitor_page = (hv_vmbus_monitor_page *) hv_vmbus_g_connection.monitor_page_2; synch_set_bit(channel->monitor_bit, (uint32_t *)&monitor_page-> trigger_group[channel->monitor_group].u.pending); } else { hv_vmbus_set_event(channel); } } /** * @brief Open the specified channel */ int hv_vmbus_channel_open( hv_vmbus_channel* new_channel, uint32_t send_ring_buffer_size, uint32_t recv_ring_buffer_size, void* user_data, uint32_t user_data_len, hv_vmbus_pfn_channel_callback pfn_on_channel_callback, void* context) { int ret = 0; void *in, *out; hv_vmbus_channel_open_channel* open_msg; hv_vmbus_channel_msg_info* open_info; mtx_lock(&new_channel->sc_lock); if (new_channel->state == HV_CHANNEL_OPEN_STATE) { new_channel->state = HV_CHANNEL_OPENING_STATE; } else { mtx_unlock(&new_channel->sc_lock); if(bootverbose) printf("VMBUS: Trying to open channel <%p> which in " "%d state.\n", new_channel, new_channel->state); return (EINVAL); } mtx_unlock(&new_channel->sc_lock); new_channel->on_channel_callback = pfn_on_channel_callback; new_channel->channel_callback_context = context; new_channel->rxq = hv_vmbus_g_context.hv_event_queue[new_channel->target_cpu]; TASK_INIT(&new_channel->channel_task, 0, VmbusProcessChannelEvent, new_channel); /* Allocate the ring buffer */ out = contigmalloc((send_ring_buffer_size + recv_ring_buffer_size), M_DEVBUF, M_ZERO, 0UL, BUS_SPACE_MAXADDR, PAGE_SIZE, 0); KASSERT(out != NULL, ("Error VMBUS: contigmalloc failed to allocate Ring Buffer!")); if (out == NULL) return (ENOMEM); in = ((uint8_t *) out + send_ring_buffer_size); new_channel->ring_buffer_pages = out; new_channel->ring_buffer_page_count = (send_ring_buffer_size + recv_ring_buffer_size) >> PAGE_SHIFT; new_channel->ring_buffer_size = send_ring_buffer_size + recv_ring_buffer_size; hv_vmbus_ring_buffer_init( &new_channel->outbound, out, send_ring_buffer_size); hv_vmbus_ring_buffer_init( &new_channel->inbound, in, recv_ring_buffer_size); /** * Establish the gpadl for the ring buffer */ new_channel->ring_buffer_gpadl_handle = 0; ret = hv_vmbus_channel_establish_gpadl(new_channel, new_channel->outbound.ring_buffer, send_ring_buffer_size + recv_ring_buffer_size, &new_channel->ring_buffer_gpadl_handle); /** * Create and init the channel open message */ open_info = (hv_vmbus_channel_msg_info*) malloc( sizeof(hv_vmbus_channel_msg_info) + sizeof(hv_vmbus_channel_open_channel), M_DEVBUF, M_NOWAIT); KASSERT(open_info != NULL, ("Error VMBUS: malloc failed to allocate Open Channel message!")); if (open_info == NULL) return (ENOMEM); sema_init(&open_info->wait_sema, 0, "Open Info Sema"); open_msg = (hv_vmbus_channel_open_channel*) open_info->msg; open_msg->header.message_type = HV_CHANNEL_MESSAGE_OPEN_CHANNEL; open_msg->open_id = new_channel->offer_msg.child_rel_id; open_msg->child_rel_id = new_channel->offer_msg.child_rel_id; open_msg->ring_buffer_gpadl_handle = new_channel->ring_buffer_gpadl_handle; open_msg->downstream_ring_buffer_page_offset = send_ring_buffer_size >> PAGE_SHIFT; open_msg->target_vcpu = new_channel->target_vcpu; if (user_data_len) memcpy(open_msg->user_data, user_data, user_data_len); mtx_lock_spin(&hv_vmbus_g_connection.channel_msg_lock); TAILQ_INSERT_TAIL( &hv_vmbus_g_connection.channel_msg_anchor, open_info, msg_list_entry); mtx_unlock_spin(&hv_vmbus_g_connection.channel_msg_lock); ret = hv_vmbus_post_message( open_msg, sizeof(hv_vmbus_channel_open_channel)); if (ret != 0) goto cleanup; - ret = sema_timedwait(&open_info->wait_sema, 500); /* KYS 5 seconds */ + ret = sema_timedwait(&open_info->wait_sema, 5 * hz); /* KYS 5 seconds */ if (ret) { if(bootverbose) printf("VMBUS: channel <%p> open timeout.\n", new_channel); goto cleanup; } if (open_info->response.open_result.status == 0) { new_channel->state = HV_CHANNEL_OPENED_STATE; if(bootverbose) printf("VMBUS: channel <%p> open success.\n", new_channel); } else { if(bootverbose) printf("Error VMBUS: channel <%p> open failed - %d!\n", new_channel, open_info->response.open_result.status); } cleanup: mtx_lock_spin(&hv_vmbus_g_connection.channel_msg_lock); TAILQ_REMOVE( &hv_vmbus_g_connection.channel_msg_anchor, open_info, msg_list_entry); mtx_unlock_spin(&hv_vmbus_g_connection.channel_msg_lock); sema_destroy(&open_info->wait_sema); free(open_info, M_DEVBUF); return (ret); } /** * @brief Create a gpadl for the specified buffer */ static int vmbus_channel_create_gpadl_header( void* contig_buffer, uint32_t size, /* page-size multiple */ hv_vmbus_channel_msg_info** msg_info, uint32_t* message_count) { int i; int page_count; unsigned long long pfn; uint32_t msg_size; hv_vmbus_channel_gpadl_header* gpa_header; hv_vmbus_channel_gpadl_body* gpadl_body; hv_vmbus_channel_msg_info* msg_header; hv_vmbus_channel_msg_info* msg_body; int pfnSum, pfnCount, pfnLeft, pfnCurr, pfnSize; page_count = size >> PAGE_SHIFT; pfn = hv_get_phys_addr(contig_buffer) >> PAGE_SHIFT; /*do we need a gpadl body msg */ pfnSize = HV_MAX_SIZE_CHANNEL_MESSAGE - sizeof(hv_vmbus_channel_gpadl_header) - sizeof(hv_gpa_range); pfnCount = pfnSize / sizeof(uint64_t); if (page_count > pfnCount) { /* if(we need a gpadl body) */ /* fill in the header */ msg_size = sizeof(hv_vmbus_channel_msg_info) + sizeof(hv_vmbus_channel_gpadl_header) + sizeof(hv_gpa_range) + pfnCount * sizeof(uint64_t); msg_header = malloc(msg_size, M_DEVBUF, M_NOWAIT | M_ZERO); KASSERT( msg_header != NULL, ("Error VMBUS: malloc failed to allocate Gpadl Message!")); if (msg_header == NULL) return (ENOMEM); TAILQ_INIT(&msg_header->sub_msg_list_anchor); msg_header->message_size = msg_size; gpa_header = (hv_vmbus_channel_gpadl_header*) msg_header->msg; gpa_header->range_count = 1; gpa_header->range_buf_len = sizeof(hv_gpa_range) + page_count * sizeof(uint64_t); gpa_header->range[0].byte_offset = 0; gpa_header->range[0].byte_count = size; for (i = 0; i < pfnCount; i++) { gpa_header->range[0].pfn_array[i] = pfn + i; } *msg_info = msg_header; *message_count = 1; pfnSum = pfnCount; pfnLeft = page_count - pfnCount; /* * figure out how many pfns we can fit */ pfnSize = HV_MAX_SIZE_CHANNEL_MESSAGE - sizeof(hv_vmbus_channel_gpadl_body); pfnCount = pfnSize / sizeof(uint64_t); /* * fill in the body */ while (pfnLeft) { if (pfnLeft > pfnCount) { pfnCurr = pfnCount; } else { pfnCurr = pfnLeft; } msg_size = sizeof(hv_vmbus_channel_msg_info) + sizeof(hv_vmbus_channel_gpadl_body) + pfnCurr * sizeof(uint64_t); msg_body = malloc(msg_size, M_DEVBUF, M_NOWAIT | M_ZERO); KASSERT( msg_body != NULL, ("Error VMBUS: malloc failed to allocate Gpadl msg_body!")); if (msg_body == NULL) return (ENOMEM); msg_body->message_size = msg_size; (*message_count)++; gpadl_body = (hv_vmbus_channel_gpadl_body*) msg_body->msg; /* * gpadl_body->gpadl = kbuffer; */ for (i = 0; i < pfnCurr; i++) { gpadl_body->pfn[i] = pfn + pfnSum + i; } TAILQ_INSERT_TAIL( &msg_header->sub_msg_list_anchor, msg_body, msg_list_entry); pfnSum += pfnCurr; pfnLeft -= pfnCurr; } } else { /* else everything fits in a header */ msg_size = sizeof(hv_vmbus_channel_msg_info) + sizeof(hv_vmbus_channel_gpadl_header) + sizeof(hv_gpa_range) + page_count * sizeof(uint64_t); msg_header = malloc(msg_size, M_DEVBUF, M_NOWAIT | M_ZERO); KASSERT( msg_header != NULL, ("Error VMBUS: malloc failed to allocate Gpadl Message!")); if (msg_header == NULL) return (ENOMEM); msg_header->message_size = msg_size; gpa_header = (hv_vmbus_channel_gpadl_header*) msg_header->msg; gpa_header->range_count = 1; gpa_header->range_buf_len = sizeof(hv_gpa_range) + page_count * sizeof(uint64_t); gpa_header->range[0].byte_offset = 0; gpa_header->range[0].byte_count = size; for (i = 0; i < page_count; i++) { gpa_header->range[0].pfn_array[i] = pfn + i; } *msg_info = msg_header; *message_count = 1; } return (0); } /** * @brief Establish a GPADL for the specified buffer */ int hv_vmbus_channel_establish_gpadl( hv_vmbus_channel* channel, void* contig_buffer, uint32_t size, /* page-size multiple */ uint32_t* gpadl_handle) { int ret = 0; hv_vmbus_channel_gpadl_header* gpadl_msg; hv_vmbus_channel_gpadl_body* gpadl_body; hv_vmbus_channel_msg_info* msg_info; hv_vmbus_channel_msg_info* sub_msg_info; uint32_t msg_count; hv_vmbus_channel_msg_info* curr; uint32_t next_gpadl_handle; next_gpadl_handle = hv_vmbus_g_connection.next_gpadl_handle; atomic_add_int((int*) &hv_vmbus_g_connection.next_gpadl_handle, 1); ret = vmbus_channel_create_gpadl_header( contig_buffer, size, &msg_info, &msg_count); if(ret != 0) { /* if(allocation failed) return immediately */ /* reverse atomic_add_int above */ atomic_subtract_int((int*) &hv_vmbus_g_connection.next_gpadl_handle, 1); return ret; } sema_init(&msg_info->wait_sema, 0, "Open Info Sema"); gpadl_msg = (hv_vmbus_channel_gpadl_header*) msg_info->msg; gpadl_msg->header.message_type = HV_CHANNEL_MESSAGEL_GPADL_HEADER; gpadl_msg->child_rel_id = channel->offer_msg.child_rel_id; gpadl_msg->gpadl = next_gpadl_handle; mtx_lock_spin(&hv_vmbus_g_connection.channel_msg_lock); TAILQ_INSERT_TAIL( &hv_vmbus_g_connection.channel_msg_anchor, msg_info, msg_list_entry); mtx_unlock_spin(&hv_vmbus_g_connection.channel_msg_lock); ret = hv_vmbus_post_message( gpadl_msg, msg_info->message_size - (uint32_t) sizeof(hv_vmbus_channel_msg_info)); if (ret != 0) goto cleanup; if (msg_count > 1) { TAILQ_FOREACH(curr, &msg_info->sub_msg_list_anchor, msg_list_entry) { sub_msg_info = curr; gpadl_body = (hv_vmbus_channel_gpadl_body*) sub_msg_info->msg; gpadl_body->header.message_type = HV_CHANNEL_MESSAGE_GPADL_BODY; gpadl_body->gpadl = next_gpadl_handle; ret = hv_vmbus_post_message( gpadl_body, sub_msg_info->message_size - (uint32_t) sizeof(hv_vmbus_channel_msg_info)); /* if (the post message failed) give up and clean up */ if(ret != 0) goto cleanup; } } - ret = sema_timedwait(&msg_info->wait_sema, 500); /* KYS 5 seconds*/ + ret = sema_timedwait(&msg_info->wait_sema, 5 * hz); /* KYS 5 seconds*/ if (ret != 0) goto cleanup; *gpadl_handle = gpadl_msg->gpadl; cleanup: mtx_lock_spin(&hv_vmbus_g_connection.channel_msg_lock); TAILQ_REMOVE(&hv_vmbus_g_connection.channel_msg_anchor, msg_info, msg_list_entry); mtx_unlock_spin(&hv_vmbus_g_connection.channel_msg_lock); sema_destroy(&msg_info->wait_sema); free(msg_info, M_DEVBUF); return (ret); } /** * @brief Teardown the specified GPADL handle */ int hv_vmbus_channel_teardown_gpdal( hv_vmbus_channel* channel, uint32_t gpadl_handle) { int ret = 0; hv_vmbus_channel_gpadl_teardown* msg; hv_vmbus_channel_msg_info* info; info = (hv_vmbus_channel_msg_info *) malloc( sizeof(hv_vmbus_channel_msg_info) + sizeof(hv_vmbus_channel_gpadl_teardown), M_DEVBUF, M_NOWAIT); KASSERT(info != NULL, ("Error VMBUS: malloc failed to allocate Gpadl Teardown Msg!")); if (info == NULL) { ret = ENOMEM; goto cleanup; } sema_init(&info->wait_sema, 0, "Open Info Sema"); msg = (hv_vmbus_channel_gpadl_teardown*) info->msg; msg->header.message_type = HV_CHANNEL_MESSAGE_GPADL_TEARDOWN; msg->child_rel_id = channel->offer_msg.child_rel_id; msg->gpadl = gpadl_handle; mtx_lock_spin(&hv_vmbus_g_connection.channel_msg_lock); TAILQ_INSERT_TAIL(&hv_vmbus_g_connection.channel_msg_anchor, info, msg_list_entry); mtx_unlock_spin(&hv_vmbus_g_connection.channel_msg_lock); ret = hv_vmbus_post_message(msg, sizeof(hv_vmbus_channel_gpadl_teardown)); if (ret != 0) goto cleanup; - ret = sema_timedwait(&info->wait_sema, 500); /* KYS 5 seconds */ + ret = sema_timedwait(&info->wait_sema, 5 * hz); /* KYS 5 seconds */ cleanup: /* * Received a torndown response */ mtx_lock_spin(&hv_vmbus_g_connection.channel_msg_lock); TAILQ_REMOVE(&hv_vmbus_g_connection.channel_msg_anchor, info, msg_list_entry); mtx_unlock_spin(&hv_vmbus_g_connection.channel_msg_lock); sema_destroy(&info->wait_sema); free(info, M_DEVBUF); return (ret); } static void hv_vmbus_channel_close_internal(hv_vmbus_channel *channel) { int ret = 0; struct taskqueue *rxq = channel->rxq; hv_vmbus_channel_close_channel* msg; hv_vmbus_channel_msg_info* info; channel->state = HV_CHANNEL_OPEN_STATE; channel->sc_creation_callback = NULL; /* * set rxq to NULL to avoid more requests be scheduled */ channel->rxq = NULL; taskqueue_drain(rxq, &channel->channel_task); /* * Grab the lock to prevent race condition when a packet received * and unloading driver is in the process. */ mtx_lock(&channel->inbound_lock); channel->on_channel_callback = NULL; mtx_unlock(&channel->inbound_lock); /** * Send a closing message */ info = (hv_vmbus_channel_msg_info *) malloc( sizeof(hv_vmbus_channel_msg_info) + sizeof(hv_vmbus_channel_close_channel), M_DEVBUF, M_NOWAIT); KASSERT(info != NULL, ("VMBUS: malloc failed hv_vmbus_channel_close!")); if(info == NULL) return; msg = (hv_vmbus_channel_close_channel*) info->msg; msg->header.message_type = HV_CHANNEL_MESSAGE_CLOSE_CHANNEL; msg->child_rel_id = channel->offer_msg.child_rel_id; ret = hv_vmbus_post_message( msg, sizeof(hv_vmbus_channel_close_channel)); /* Tear down the gpadl for the channel's ring buffer */ if (channel->ring_buffer_gpadl_handle) { hv_vmbus_channel_teardown_gpdal(channel, channel->ring_buffer_gpadl_handle); } /* TODO: Send a msg to release the childRelId */ /* cleanup the ring buffers for this channel */ hv_ring_buffer_cleanup(&channel->outbound); hv_ring_buffer_cleanup(&channel->inbound); contigfree(channel->ring_buffer_pages, channel->ring_buffer_size, M_DEVBUF); free(info, M_DEVBUF); } /** * @brief Close the specified channel */ void hv_vmbus_channel_close(hv_vmbus_channel *channel) { hv_vmbus_channel* sub_channel; if (channel->primary_channel != NULL) { /* * We only close multi-channels when the primary is * closed. */ return; } /* * Close all multi-channels first. */ TAILQ_FOREACH(sub_channel, &channel->sc_list_anchor, sc_list_entry) { if (sub_channel->state != HV_CHANNEL_OPENED_STATE) continue; hv_vmbus_channel_close_internal(sub_channel); } /* * Then close the primary channel. */ hv_vmbus_channel_close_internal(channel); } /** * @brief Send the specified buffer on the given channel */ int hv_vmbus_channel_send_packet( hv_vmbus_channel* channel, void* buffer, uint32_t buffer_len, uint64_t request_id, hv_vmbus_packet_type type, uint32_t flags) { int ret = 0; hv_vm_packet_descriptor desc; uint32_t packet_len; uint64_t aligned_data; uint32_t packet_len_aligned; boolean_t need_sig; hv_vmbus_sg_buffer_list buffer_list[3]; packet_len = sizeof(hv_vm_packet_descriptor) + buffer_len; packet_len_aligned = HV_ALIGN_UP(packet_len, sizeof(uint64_t)); aligned_data = 0; /* Setup the descriptor */ desc.type = type; /* HV_VMBUS_PACKET_TYPE_DATA_IN_BAND; */ desc.flags = flags; /* HV_VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED */ /* in 8-bytes granularity */ desc.data_offset8 = sizeof(hv_vm_packet_descriptor) >> 3; desc.length8 = (uint16_t) (packet_len_aligned >> 3); desc.transaction_id = request_id; buffer_list[0].data = &desc; buffer_list[0].length = sizeof(hv_vm_packet_descriptor); buffer_list[1].data = buffer; buffer_list[1].length = buffer_len; buffer_list[2].data = &aligned_data; buffer_list[2].length = packet_len_aligned - packet_len; ret = hv_ring_buffer_write(&channel->outbound, buffer_list, 3, &need_sig); /* TODO: We should determine if this is optional */ if (ret == 0 && need_sig) { vmbus_channel_set_event(channel); } return (ret); } /** * @brief Send a range of single-page buffer packets using * a GPADL Direct packet type */ int hv_vmbus_channel_send_packet_pagebuffer( hv_vmbus_channel* channel, hv_vmbus_page_buffer page_buffers[], uint32_t page_count, void* buffer, uint32_t buffer_len, uint64_t request_id) { int ret = 0; boolean_t need_sig; uint32_t packet_len; uint32_t page_buflen; uint32_t packetLen_aligned; hv_vmbus_sg_buffer_list buffer_list[4]; hv_vmbus_channel_packet_page_buffer desc; uint32_t descSize; uint64_t alignedData = 0; if (page_count > HV_MAX_PAGE_BUFFER_COUNT) return (EINVAL); /* * Adjust the size down since hv_vmbus_channel_packet_page_buffer * is the largest size we support */ descSize = __offsetof(hv_vmbus_channel_packet_page_buffer, range); page_buflen = sizeof(hv_vmbus_page_buffer) * page_count; packet_len = descSize + page_buflen + buffer_len; packetLen_aligned = HV_ALIGN_UP(packet_len, sizeof(uint64_t)); /* Setup the descriptor */ desc.type = HV_VMBUS_PACKET_TYPE_DATA_USING_GPA_DIRECT; desc.flags = HV_VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED; /* in 8-bytes granularity */ desc.data_offset8 = (descSize + page_buflen) >> 3; desc.length8 = (uint16_t) (packetLen_aligned >> 3); desc.transaction_id = request_id; desc.range_count = page_count; buffer_list[0].data = &desc; buffer_list[0].length = descSize; buffer_list[1].data = page_buffers; buffer_list[1].length = page_buflen; buffer_list[2].data = buffer; buffer_list[2].length = buffer_len; buffer_list[3].data = &alignedData; buffer_list[3].length = packetLen_aligned - packet_len; ret = hv_ring_buffer_write(&channel->outbound, buffer_list, 4, &need_sig); /* TODO: We should determine if this is optional */ if (ret == 0 && need_sig) { vmbus_channel_set_event(channel); } return (ret); } /** * @brief Send a multi-page buffer packet using a GPADL Direct packet type */ int hv_vmbus_channel_send_packet_multipagebuffer( hv_vmbus_channel* channel, hv_vmbus_multipage_buffer* multi_page_buffer, void* buffer, uint32_t buffer_len, uint64_t request_id) { int ret = 0; uint32_t desc_size; boolean_t need_sig; uint32_t packet_len; uint32_t packet_len_aligned; uint32_t pfn_count; uint64_t aligned_data = 0; hv_vmbus_sg_buffer_list buffer_list[3]; hv_vmbus_channel_packet_multipage_buffer desc; pfn_count = HV_NUM_PAGES_SPANNED( multi_page_buffer->offset, multi_page_buffer->length); if ((pfn_count == 0) || (pfn_count > HV_MAX_MULTIPAGE_BUFFER_COUNT)) return (EINVAL); /* * Adjust the size down since hv_vmbus_channel_packet_multipage_buffer * is the largest size we support */ desc_size = sizeof(hv_vmbus_channel_packet_multipage_buffer) - ((HV_MAX_MULTIPAGE_BUFFER_COUNT - pfn_count) * sizeof(uint64_t)); packet_len = desc_size + buffer_len; packet_len_aligned = HV_ALIGN_UP(packet_len, sizeof(uint64_t)); /* * Setup the descriptor */ desc.type = HV_VMBUS_PACKET_TYPE_DATA_USING_GPA_DIRECT; desc.flags = HV_VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED; desc.data_offset8 = desc_size >> 3; /* in 8-bytes granularity */ desc.length8 = (uint16_t) (packet_len_aligned >> 3); desc.transaction_id = request_id; desc.range_count = 1; desc.range.length = multi_page_buffer->length; desc.range.offset = multi_page_buffer->offset; memcpy(desc.range.pfn_array, multi_page_buffer->pfn_array, pfn_count * sizeof(uint64_t)); buffer_list[0].data = &desc; buffer_list[0].length = desc_size; buffer_list[1].data = buffer; buffer_list[1].length = buffer_len; buffer_list[2].data = &aligned_data; buffer_list[2].length = packet_len_aligned - packet_len; ret = hv_ring_buffer_write(&channel->outbound, buffer_list, 3, &need_sig); /* TODO: We should determine if this is optional */ if (ret == 0 && need_sig) { vmbus_channel_set_event(channel); } return (ret); } /** * @brief Retrieve the user packet on the specified channel */ int hv_vmbus_channel_recv_packet( hv_vmbus_channel* channel, void* Buffer, uint32_t buffer_len, uint32_t* buffer_actual_len, uint64_t* request_id) { int ret; uint32_t user_len; uint32_t packet_len; hv_vm_packet_descriptor desc; *buffer_actual_len = 0; *request_id = 0; ret = hv_ring_buffer_peek(&channel->inbound, &desc, sizeof(hv_vm_packet_descriptor)); if (ret != 0) return (0); packet_len = desc.length8 << 3; user_len = packet_len - (desc.data_offset8 << 3); *buffer_actual_len = user_len; if (user_len > buffer_len) return (EINVAL); *request_id = desc.transaction_id; /* Copy over the packet to the user buffer */ ret = hv_ring_buffer_read(&channel->inbound, Buffer, user_len, (desc.data_offset8 << 3)); return (0); } /** * @brief Retrieve the raw packet on the specified channel */ int hv_vmbus_channel_recv_packet_raw( hv_vmbus_channel* channel, void* buffer, uint32_t buffer_len, uint32_t* buffer_actual_len, uint64_t* request_id) { int ret; uint32_t packetLen; uint32_t userLen; hv_vm_packet_descriptor desc; *buffer_actual_len = 0; *request_id = 0; ret = hv_ring_buffer_peek( &channel->inbound, &desc, sizeof(hv_vm_packet_descriptor)); if (ret != 0) return (0); packetLen = desc.length8 << 3; userLen = packetLen - (desc.data_offset8 << 3); *buffer_actual_len = packetLen; if (packetLen > buffer_len) return (ENOBUFS); *request_id = desc.transaction_id; /* Copy over the entire packet to the user buffer */ ret = hv_ring_buffer_read(&channel->inbound, buffer, packetLen, 0); return (0); } /** * Process a channel event notification */ static void VmbusProcessChannelEvent(void* context, int pending) { void* arg; uint32_t bytes_to_read; hv_vmbus_channel* channel = (hv_vmbus_channel*)context; boolean_t is_batched_reading; /** * Find the channel based on this relid and invokes * the channel callback to process the event */ if (channel == NULL) { return; } /** * To deal with the race condition where we might * receive a packet while the relevant driver is * being unloaded, dispatch the callback while * holding the channel lock. The unloading driver * will acquire the same channel lock to set the * callback to NULL. This closes the window. */ /* * Disable the lock due to newly added WITNESS check in r277723. * Will seek other way to avoid race condition. * -- whu */ // mtx_lock(&channel->inbound_lock); if (channel->on_channel_callback != NULL) { arg = channel->channel_callback_context; is_batched_reading = channel->batched_reading; /* * Optimize host to guest signaling by ensuring: * 1. While reading the channel, we disable interrupts from * host. * 2. Ensure that we process all posted messages from the host * before returning from this callback. * 3. Once we return, enable signaling from the host. Once this * state is set we check to see if additional packets are * available to read. In this case we repeat the process. */ do { if (is_batched_reading) hv_ring_buffer_read_begin(&channel->inbound); channel->on_channel_callback(arg); if (is_batched_reading) bytes_to_read = hv_ring_buffer_read_end(&channel->inbound); else bytes_to_read = 0; } while (is_batched_reading && (bytes_to_read != 0)); } // mtx_unlock(&channel->inbound_lock); } Index: head/sys/dev/hyperv/vmbus/hv_connection.c =================================================================== --- head/sys/dev/hyperv/vmbus/hv_connection.c (revision 296027) +++ head/sys/dev/hyperv/vmbus/hv_connection.c (revision 296028) @@ -1,409 +1,410 @@ /*- * Copyright (c) 2009-2012 Microsoft Corp. * Copyright (c) 2012 NetApp Inc. * Copyright (c) 2012 Citrix 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. */ #include +#include #include #include #include #include #include #include #include #include #include "hv_vmbus_priv.h" /* * Globals */ hv_vmbus_connection hv_vmbus_g_connection = { .connect_state = HV_DISCONNECTED, .next_gpadl_handle = 0xE1E10, }; uint32_t hv_vmbus_protocal_version = HV_VMBUS_VERSION_WS2008; static uint32_t hv_vmbus_get_next_version(uint32_t current_ver) { switch (current_ver) { case (HV_VMBUS_VERSION_WIN7): return(HV_VMBUS_VERSION_WS2008); case (HV_VMBUS_VERSION_WIN8): return(HV_VMBUS_VERSION_WIN7); case (HV_VMBUS_VERSION_WIN8_1): return(HV_VMBUS_VERSION_WIN8); case (HV_VMBUS_VERSION_WS2008): default: return(HV_VMBUS_VERSION_INVALID); } } /** * Negotiate the highest supported hypervisor version. */ static int hv_vmbus_negotiate_version(hv_vmbus_channel_msg_info *msg_info, uint32_t version) { int ret = 0; hv_vmbus_channel_initiate_contact *msg; sema_init(&msg_info->wait_sema, 0, "Msg Info Sema"); msg = (hv_vmbus_channel_initiate_contact*) msg_info->msg; msg->header.message_type = HV_CHANNEL_MESSAGE_INITIATED_CONTACT; msg->vmbus_version_requested = version; msg->interrupt_page = hv_get_phys_addr( hv_vmbus_g_connection.interrupt_page); msg->monitor_page_1 = hv_get_phys_addr( hv_vmbus_g_connection.monitor_page_1); msg->monitor_page_2 = hv_get_phys_addr( hv_vmbus_g_connection.monitor_page_2); /** * Add to list before we send the request since we may receive the * response before returning from this routine */ mtx_lock_spin(&hv_vmbus_g_connection.channel_msg_lock); TAILQ_INSERT_TAIL( &hv_vmbus_g_connection.channel_msg_anchor, msg_info, msg_list_entry); mtx_unlock_spin(&hv_vmbus_g_connection.channel_msg_lock); ret = hv_vmbus_post_message( msg, sizeof(hv_vmbus_channel_initiate_contact)); if (ret != 0) { mtx_lock_spin(&hv_vmbus_g_connection.channel_msg_lock); TAILQ_REMOVE( &hv_vmbus_g_connection.channel_msg_anchor, msg_info, msg_list_entry); mtx_unlock_spin(&hv_vmbus_g_connection.channel_msg_lock); return (ret); } /** * Wait for the connection response */ - ret = sema_timedwait(&msg_info->wait_sema, 500); /* KYS 5 seconds */ + ret = sema_timedwait(&msg_info->wait_sema, 5 * hz); /* KYS 5 seconds */ mtx_lock_spin(&hv_vmbus_g_connection.channel_msg_lock); TAILQ_REMOVE( &hv_vmbus_g_connection.channel_msg_anchor, msg_info, msg_list_entry); mtx_unlock_spin(&hv_vmbus_g_connection.channel_msg_lock); /** * Check if successful */ if (msg_info->response.version_response.version_supported) { hv_vmbus_g_connection.connect_state = HV_CONNECTED; } else { ret = ECONNREFUSED; } return (ret); } /** * Send a connect request on the partition service connection */ int hv_vmbus_connect(void) { int ret = 0; uint32_t version; hv_vmbus_channel_msg_info* msg_info = NULL; /** * Make sure we are not connecting or connected */ if (hv_vmbus_g_connection.connect_state != HV_DISCONNECTED) { return (-1); } /** * Initialize the vmbus connection */ hv_vmbus_g_connection.connect_state = HV_CONNECTING; TAILQ_INIT(&hv_vmbus_g_connection.channel_msg_anchor); mtx_init(&hv_vmbus_g_connection.channel_msg_lock, "vmbus channel msg", NULL, MTX_SPIN); TAILQ_INIT(&hv_vmbus_g_connection.channel_anchor); mtx_init(&hv_vmbus_g_connection.channel_lock, "vmbus channel", NULL, MTX_DEF); /** * Setup the vmbus event connection for channel interrupt abstraction * stuff */ hv_vmbus_g_connection.interrupt_page = malloc( PAGE_SIZE, M_DEVBUF, M_WAITOK | M_ZERO); hv_vmbus_g_connection.recv_interrupt_page = hv_vmbus_g_connection.interrupt_page; hv_vmbus_g_connection.send_interrupt_page = ((uint8_t *) hv_vmbus_g_connection.interrupt_page + (PAGE_SIZE >> 1)); /** * Set up the monitor notification facility. The 1st page for * parent->child and the 2nd page for child->parent */ hv_vmbus_g_connection.monitor_page_1 = malloc( PAGE_SIZE, M_DEVBUF, M_WAITOK | M_ZERO); hv_vmbus_g_connection.monitor_page_2 = malloc( PAGE_SIZE, M_DEVBUF, M_WAITOK | M_ZERO); msg_info = (hv_vmbus_channel_msg_info*) malloc(sizeof(hv_vmbus_channel_msg_info) + sizeof(hv_vmbus_channel_initiate_contact), M_DEVBUF, M_WAITOK | M_ZERO); hv_vmbus_g_connection.channels = malloc(sizeof(hv_vmbus_channel*) * HV_CHANNEL_MAX_COUNT, M_DEVBUF, M_WAITOK | M_ZERO); /* * Find the highest vmbus version number we can support. */ version = HV_VMBUS_VERSION_CURRENT; do { ret = hv_vmbus_negotiate_version(msg_info, version); if (ret == EWOULDBLOCK) { /* * We timed out. */ goto cleanup; } if (hv_vmbus_g_connection.connect_state == HV_CONNECTED) break; version = hv_vmbus_get_next_version(version); } while (version != HV_VMBUS_VERSION_INVALID); hv_vmbus_protocal_version = version; if (bootverbose) printf("VMBUS: Protocol Version: %d.%d\n", version >> 16, version & 0xFFFF); sema_destroy(&msg_info->wait_sema); free(msg_info, M_DEVBUF); return (0); /* * Cleanup after failure! */ cleanup: hv_vmbus_g_connection.connect_state = HV_DISCONNECTED; mtx_destroy(&hv_vmbus_g_connection.channel_lock); mtx_destroy(&hv_vmbus_g_connection.channel_msg_lock); if (hv_vmbus_g_connection.interrupt_page != NULL) { free(hv_vmbus_g_connection.interrupt_page, M_DEVBUF); hv_vmbus_g_connection.interrupt_page = NULL; } free(hv_vmbus_g_connection.monitor_page_1, M_DEVBUF); free(hv_vmbus_g_connection.monitor_page_2, M_DEVBUF); if (msg_info) { sema_destroy(&msg_info->wait_sema); free(msg_info, M_DEVBUF); } free(hv_vmbus_g_connection.channels, M_DEVBUF); return (ret); } /** * Send a disconnect request on the partition service connection */ int hv_vmbus_disconnect(void) { int ret = 0; hv_vmbus_channel_unload msg; msg.message_type = HV_CHANNEL_MESSAGE_UNLOAD; ret = hv_vmbus_post_message(&msg, sizeof(hv_vmbus_channel_unload)); free(hv_vmbus_g_connection.interrupt_page, M_DEVBUF); mtx_destroy(&hv_vmbus_g_connection.channel_msg_lock); free(hv_vmbus_g_connection.channels, M_DEVBUF); hv_vmbus_g_connection.connect_state = HV_DISCONNECTED; return (ret); } /** * Handler for events */ void hv_vmbus_on_events(int cpu) { int bit; int dword; void *page_addr; uint32_t* recv_interrupt_page = NULL; int rel_id; int maxdword; hv_vmbus_synic_event_flags *event; /* int maxdword = PAGE_SIZE >> 3; */ KASSERT(cpu <= mp_maxid, ("VMBUS: hv_vmbus_on_events: " "cpu out of range!")); if ((hv_vmbus_protocal_version == HV_VMBUS_VERSION_WS2008) || (hv_vmbus_protocal_version == HV_VMBUS_VERSION_WIN7)) { maxdword = HV_MAX_NUM_CHANNELS_SUPPORTED >> 5; /* * receive size is 1/2 page and divide that by 4 bytes */ recv_interrupt_page = hv_vmbus_g_connection.recv_interrupt_page; } else { /* * On Host with Win8 or above, the event page can be * checked directly to get the id of the channel * that has the pending interrupt. */ maxdword = HV_EVENT_FLAGS_DWORD_COUNT; page_addr = hv_vmbus_g_context.syn_ic_event_page[cpu]; event = (hv_vmbus_synic_event_flags *) page_addr + HV_VMBUS_MESSAGE_SINT; recv_interrupt_page = event->flags32; } /* * Check events */ if (recv_interrupt_page != NULL) { for (dword = 0; dword < maxdword; dword++) { if (recv_interrupt_page[dword]) { for (bit = 0; bit < HV_CHANNEL_DWORD_LEN; bit++) { if (synch_test_and_clear_bit(bit, (uint32_t *) &recv_interrupt_page[dword])) { rel_id = (dword << 5) + bit; if (rel_id == 0) { /* * Special case - * vmbus channel protocol msg. */ continue; } else { hv_vmbus_channel * channel = hv_vmbus_g_connection.channels[rel_id]; /* if channel is closed or closing */ if (channel == NULL || channel->rxq == NULL) continue; if (channel->batched_reading) hv_ring_buffer_read_begin(&channel->inbound); taskqueue_enqueue_fast(channel->rxq, &channel->channel_task); } } } } } } return; } /** * Send a msg on the vmbus's message connection */ int hv_vmbus_post_message(void *buffer, size_t bufferLen) { int ret = 0; hv_vmbus_connection_id connId; unsigned retries = 0; /* NetScaler delays from previous code were consolidated here */ static int delayAmount[] = {100, 100, 100, 500, 500, 5000, 5000, 5000}; /* for(each entry in delayAmount) try to post message, * delay a little bit before retrying */ for (retries = 0; retries < sizeof(delayAmount)/sizeof(delayAmount[0]); retries++) { connId.as_uint32_t = 0; connId.u.id = HV_VMBUS_MESSAGE_CONNECTION_ID; ret = hv_vmbus_post_msg_via_msg_ipc(connId, 1, buffer, bufferLen); if (ret != HV_STATUS_INSUFFICIENT_BUFFERS) break; /* TODO: KYS We should use a blocking wait call */ DELAY(delayAmount[retries]); } KASSERT(ret == 0, ("Error VMBUS: Message Post Failed\n")); return (ret); } /** * Send an event notification to the parent */ int hv_vmbus_set_event(hv_vmbus_channel *channel) { int ret = 0; uint32_t child_rel_id = channel->offer_msg.child_rel_id; /* Each uint32_t represents 32 channels */ synch_set_bit(child_rel_id & 31, (((uint32_t *)hv_vmbus_g_connection.send_interrupt_page + (child_rel_id >> 5)))); ret = hv_vmbus_signal_event(channel->signal_event_param); return (ret); }