diff options
Diffstat (limited to 'drivers/staging/hv/netvsc.c')
| -rw-r--r-- | drivers/staging/hv/netvsc.c | 939 |
1 files changed, 491 insertions, 448 deletions
diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c index 4c2632cb19e9..0edbe7483a4c 100644 --- a/drivers/staging/hv/netvsc.c +++ b/drivers/staging/hv/netvsc.c @@ -31,147 +31,149 @@ /* Globals */ -static const char *gDriverName = "netvsc"; +static const char *driver_name = "netvsc"; /* {F8615163-DF3E-46c5-913F-F2D2F965ED0E} */ -static const struct hv_guid gNetVscDeviceType = { +static const struct hv_guid netvsc_device_type = { .data = { 0x63, 0x51, 0x61, 0xF8, 0x3E, 0xDF, 0xc5, 0x46, 0x91, 0x3F, 0xF2, 0xD2, 0xF9, 0x65, 0xED, 0x0E } }; -static int NetVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo); +static int netvsc_device_add(struct hv_device *device, void *additional_info); -static int NetVscOnDeviceRemove(struct hv_device *Device); +static int netvsc_device_remove(struct hv_device *device); -static void NetVscOnCleanup(struct hv_driver *Driver); +static void netvsc_cleanup(struct hv_driver *driver); -static void NetVscOnChannelCallback(void *context); +static void netvsc_channel_cb(void *context); -static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device); +static int netvsc_init_send_buf(struct hv_device *device); -static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device); +static int netvsc_init_recv_buf(struct hv_device *device); -static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice); +static int netvsc_destroy_send_buf(struct netvsc_device *net_device); -static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice); +static int netvsc_destroy_recv_buf(struct netvsc_device *net_device); -static int NetVscConnectToVsp(struct hv_device *Device); +static int netvsc_connect_vsp(struct hv_device *device); -static void NetVscOnSendCompletion(struct hv_device *Device, - struct vmpacket_descriptor *Packet); +static void netvsc_send_completion(struct hv_device *device, + struct vmpacket_descriptor *packet); -static int NetVscOnSend(struct hv_device *Device, - struct hv_netvsc_packet *Packet); +static int netvsc_send(struct hv_device *device, + struct hv_netvsc_packet *packet); -static void NetVscOnReceive(struct hv_device *Device, - struct vmpacket_descriptor *Packet); +static void netvsc_receive(struct hv_device *device, + struct vmpacket_descriptor *packet); -static void NetVscOnReceiveCompletion(void *Context); +static void netvsc_receive_completion(void *context); -static void NetVscSendReceiveCompletion(struct hv_device *Device, - u64 TransactionId); +static void netvsc_send_recv_completion(struct hv_device *device, + u64 transaction_id); -static struct netvsc_device *AllocNetDevice(struct hv_device *Device) +static struct netvsc_device *alloc_net_device(struct hv_device *device) { - struct netvsc_device *netDevice; + struct netvsc_device *net_device; - netDevice = kzalloc(sizeof(struct netvsc_device), GFP_KERNEL); - if (!netDevice) + net_device = kzalloc(sizeof(struct netvsc_device), GFP_KERNEL); + if (!net_device) return NULL; /* Set to 2 to allow both inbound and outbound traffic */ - atomic_cmpxchg(&netDevice->RefCount, 0, 2); + atomic_cmpxchg(&net_device->refcnt, 0, 2); - netDevice->Device = Device; - Device->Extension = netDevice; + net_device->dev = device; + device->Extension = net_device; - return netDevice; + return net_device; } -static void FreeNetDevice(struct netvsc_device *Device) +static void free_net_device(struct netvsc_device *device) { - WARN_ON(atomic_read(&Device->RefCount) == 0); - Device->Device->Extension = NULL; - kfree(Device); + WARN_ON(atomic_read(&device->refcnt) == 0); + device->dev->Extension = NULL; + kfree(device); } /* Get the net device object iff exists and its refcount > 1 */ -static struct netvsc_device *GetOutboundNetDevice(struct hv_device *Device) +static struct netvsc_device *get_outbound_net_device(struct hv_device *device) { - struct netvsc_device *netDevice; + struct netvsc_device *net_device; - netDevice = Device->Extension; - if (netDevice && atomic_read(&netDevice->RefCount) > 1) - atomic_inc(&netDevice->RefCount); + net_device = device->Extension; + if (net_device && atomic_read(&net_device->refcnt) > 1) + atomic_inc(&net_device->refcnt); else - netDevice = NULL; + net_device = NULL; - return netDevice; + return net_device; } /* Get the net device object iff exists and its refcount > 0 */ -static struct netvsc_device *GetInboundNetDevice(struct hv_device *Device) +static struct netvsc_device *get_inbound_net_device(struct hv_device *device) { - struct netvsc_device *netDevice; + struct netvsc_device *net_device; - netDevice = Device->Extension; - if (netDevice && atomic_read(&netDevice->RefCount)) - atomic_inc(&netDevice->RefCount); + net_device = device->Extension; + if (net_device && atomic_read(&net_device->refcnt)) + atomic_inc(&net_device->refcnt); else - netDevice = NULL; + net_device = NULL; - return netDevice; + return net_device; } -static void PutNetDevice(struct hv_device *Device) +static void put_net_device(struct hv_device *device) { - struct netvsc_device *netDevice; + struct netvsc_device *net_device; - netDevice = Device->Extension; + net_device = device->Extension; /* ASSERT(netDevice); */ - atomic_dec(&netDevice->RefCount); + atomic_dec(&net_device->refcnt); } -static struct netvsc_device *ReleaseOutboundNetDevice(struct hv_device *Device) +static struct netvsc_device *release_outbound_net_device( + struct hv_device *device) { - struct netvsc_device *netDevice; + struct netvsc_device *net_device; - netDevice = Device->Extension; - if (netDevice == NULL) + net_device = device->Extension; + if (net_device == NULL) return NULL; /* Busy wait until the ref drop to 2, then set it to 1 */ - while (atomic_cmpxchg(&netDevice->RefCount, 2, 1) != 2) + while (atomic_cmpxchg(&net_device->refcnt, 2, 1) != 2) udelay(100); - return netDevice; + return net_device; } -static struct netvsc_device *ReleaseInboundNetDevice(struct hv_device *Device) +static struct netvsc_device *release_inbound_net_device( + struct hv_device *device) { - struct netvsc_device *netDevice; + struct netvsc_device *net_device; - netDevice = Device->Extension; - if (netDevice == NULL) + net_device = device->Extension; + if (net_device == NULL) return NULL; /* Busy wait until the ref drop to 1, then set it to 0 */ - while (atomic_cmpxchg(&netDevice->RefCount, 1, 0) != 1) + while (atomic_cmpxchg(&net_device->refcnt, 1, 0) != 1) udelay(100); - Device->Extension = NULL; - return netDevice; + device->Extension = NULL; + return net_device; } /* - * NetVscInitialize - Main entry point + * netvsc_initialize - Main entry point */ -int NetVscInitialize(struct hv_driver *drv) +int netvsc_initialize(struct hv_driver *drv) { struct netvsc_driver *driver = (struct netvsc_driver *)drv; @@ -185,8 +187,8 @@ int NetVscInitialize(struct hv_driver *drv) /* Make sure we are at least 2 pages since 1 page is used for control */ /* ASSERT(driver->RingBufferSize >= (PAGE_SIZE << 1)); */ - drv->name = gDriverName; - memcpy(&drv->deviceType, &gNetVscDeviceType, sizeof(struct hv_guid)); + drv->name = driver_name; + memcpy(&drv->deviceType, &netvsc_device_type, sizeof(struct hv_guid)); /* Make sure it is set by the caller */ /* FIXME: These probably should still be tested in some way */ @@ -194,24 +196,24 @@ int NetVscInitialize(struct hv_driver *drv) /* ASSERT(driver->OnLinkStatusChanged); */ /* Setup the dispatch table */ - driver->Base.OnDeviceAdd = NetVscOnDeviceAdd; - driver->Base.OnDeviceRemove = NetVscOnDeviceRemove; - driver->Base.OnCleanup = NetVscOnCleanup; + driver->base.OnDeviceAdd = netvsc_device_add; + driver->base.OnDeviceRemove = netvsc_device_remove; + driver->base.OnCleanup = netvsc_cleanup; - driver->OnSend = NetVscOnSend; + driver->send = netvsc_send; - RndisFilterInit(driver); + rndis_filter_init(driver); return 0; } -static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device) +static int netvsc_init_recv_buf(struct hv_device *device) { int ret = 0; - struct netvsc_device *netDevice; - struct nvsp_message *initPacket; + struct netvsc_device *net_device; + struct nvsp_message *init_packet; - netDevice = GetOutboundNetDevice(Device); - if (!netDevice) { + net_device = get_outbound_net_device(device); + if (!net_device) { DPRINT_ERR(NETVSC, "unable to get net device..." "device being destroyed?"); return -1; @@ -220,12 +222,12 @@ static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device) /* page-size grandularity */ /* ASSERT((netDevice->ReceiveBufferSize & (PAGE_SIZE - 1)) == 0); */ - netDevice->ReceiveBuffer = - osd_PageAlloc(netDevice->ReceiveBufferSize >> PAGE_SHIFT); - if (!netDevice->ReceiveBuffer) { + net_device->recv_buf = + osd_page_alloc(net_device->recv_buf_size >> PAGE_SHIFT); + if (!net_device->recv_buf) { DPRINT_ERR(NETVSC, "unable to allocate receive buffer of size %d", - netDevice->ReceiveBufferSize); + net_device->recv_buf_size); ret = -1; goto Cleanup; } @@ -240,32 +242,34 @@ static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device) * channel. Note: This call uses the vmbus connection rather * than the channel to establish the gpadl handle. */ - ret = vmbus_establish_gpadl(Device->channel, netDevice->ReceiveBuffer, - netDevice->ReceiveBufferSize, - &netDevice->ReceiveBufferGpadlHandle); + ret = vmbus_establish_gpadl(device->channel, net_device->recv_buf, + net_device->recv_buf_size, + &net_device->recv_buf_gpadl_handle); if (ret != 0) { DPRINT_ERR(NETVSC, "unable to establish receive buffer's gpadl"); goto Cleanup; } - /* osd_WaitEventWait(ext->ChannelInitEvent); */ + /* osd_waitevent_wait(ext->ChannelInitEvent); */ /* Notify the NetVsp of the gpadl handle */ DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeSendReceiveBuffer..."); - initPacket = &netDevice->ChannelInitPacket; + init_packet = &net_device->channel_init_pkt; - memset(initPacket, 0, sizeof(struct nvsp_message)); + memset(init_packet, 0, sizeof(struct nvsp_message)); - initPacket->Header.MessageType = NvspMessage1TypeSendReceiveBuffer; - initPacket->Messages.Version1Messages.SendReceiveBuffer.GpadlHandle = netDevice->ReceiveBufferGpadlHandle; - initPacket->Messages.Version1Messages.SendReceiveBuffer.Id = NETVSC_RECEIVE_BUFFER_ID; + init_packet->hdr.msg_type = NVSP_MSG1_TYPE_SEND_RECV_BUF; + init_packet->msg.v1_msg.send_recv_buf. + gpadl_handle = net_device->recv_buf_gpadl_handle; + init_packet->msg.v1_msg. + send_recv_buf.id = NETVSC_RECEIVE_BUFFER_ID; /* Send the gpadl notification request */ - ret = vmbus_sendpacket(Device->channel, initPacket, + ret = vmbus_sendpacket(device->channel, init_packet, sizeof(struct nvsp_message), - (unsigned long)initPacket, + (unsigned long)init_packet, VmbusPacketTypeDataInBand, VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED); if (ret != 0) { @@ -274,13 +278,15 @@ static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device) goto Cleanup; } - osd_WaitEventWait(netDevice->ChannelInitEvent); + osd_waitevent_wait(net_device->channel_init_event); /* Check the response */ - if (initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Status != NvspStatusSuccess) { + if (init_packet->msg.v1_msg. + send_recv_buf_complete.status != NVSP_STAT_SUCCESS) { DPRINT_ERR(NETVSC, "Unable to complete receive buffer " "initialzation with NetVsp - status %d", - initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Status); + init_packet->msg.v1_msg. + send_recv_buf_complete.status); ret = -1; goto Cleanup; } @@ -289,32 +295,36 @@ static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device) /* ASSERT(netDevice->ReceiveSectionCount == 0); */ /* ASSERT(netDevice->ReceiveSections == NULL); */ - netDevice->ReceiveSectionCount = initPacket->Messages.Version1Messages.SendReceiveBufferComplete.NumSections; + net_device->recv_section_cnt = init_packet->msg. + v1_msg.send_recv_buf_complete.num_sections; - netDevice->ReceiveSections = kmalloc(netDevice->ReceiveSectionCount * sizeof(struct nvsp_1_receive_buffer_section), GFP_KERNEL); - if (netDevice->ReceiveSections == NULL) { + net_device->recv_section = kmalloc(net_device->recv_section_cnt + * sizeof(struct nvsp_1_receive_buffer_section), GFP_KERNEL); + if (net_device->recv_section == NULL) { ret = -1; goto Cleanup; } - memcpy(netDevice->ReceiveSections, - initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Sections, - netDevice->ReceiveSectionCount * sizeof(struct nvsp_1_receive_buffer_section)); + memcpy(net_device->recv_section, + init_packet->msg.v1_msg. + send_recv_buf_complete.sections, + net_device->recv_section_cnt * + sizeof(struct nvsp_1_receive_buffer_section)); DPRINT_INFO(NETVSC, "Receive sections info (count %d, offset %d, " "endoffset %d, suballoc size %d, num suballocs %d)", - netDevice->ReceiveSectionCount, - netDevice->ReceiveSections[0].Offset, - netDevice->ReceiveSections[0].EndOffset, - netDevice->ReceiveSections[0].SubAllocationSize, - netDevice->ReceiveSections[0].NumSubAllocations); + net_device->recv_section_cnt, + net_device->recv_section[0].offset, + net_device->recv_section[0].end_offset, + net_device->recv_section[0].sub_alloc_size, + net_device->recv_section[0].num_sub_allocs); /* * For 1st release, there should only be 1 section that represents the * entire receive buffer */ - if (netDevice->ReceiveSectionCount != 1 || - netDevice->ReceiveSections->Offset != 0) { + if (net_device->recv_section_cnt != 1 || + net_device->recv_section->offset != 0) { ret = -1; goto Cleanup; } @@ -322,26 +332,26 @@ static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device) goto Exit; Cleanup: - NetVscDestroyReceiveBuffer(netDevice); + netvsc_destroy_recv_buf(net_device); Exit: - PutNetDevice(Device); + put_net_device(device); return ret; } -static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device) +static int netvsc_init_send_buf(struct hv_device *device) { int ret = 0; - struct netvsc_device *netDevice; - struct nvsp_message *initPacket; + struct netvsc_device *net_device; + struct nvsp_message *init_packet; - netDevice = GetOutboundNetDevice(Device); - if (!netDevice) { + net_device = get_outbound_net_device(device); + if (!net_device) { DPRINT_ERR(NETVSC, "unable to get net device..." "device being destroyed?"); return -1; } - if (netDevice->SendBufferSize <= 0) { + if (net_device->send_buf_size <= 0) { ret = -EINVAL; goto Cleanup; } @@ -349,11 +359,11 @@ static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device) /* page-size grandularity */ /* ASSERT((netDevice->SendBufferSize & (PAGE_SIZE - 1)) == 0); */ - netDevice->SendBuffer = - osd_PageAlloc(netDevice->SendBufferSize >> PAGE_SHIFT); - if (!netDevice->SendBuffer) { + net_device->send_buf = + osd_page_alloc(net_device->send_buf_size >> PAGE_SHIFT); + if (!net_device->send_buf) { DPRINT_ERR(NETVSC, "unable to allocate send buffer of size %d", - netDevice->SendBufferSize); + net_device->send_buf_size); ret = -1; goto Cleanup; } @@ -367,31 +377,33 @@ static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device) * channel. Note: This call uses the vmbus connection rather * than the channel to establish the gpadl handle. */ - ret = vmbus_establish_gpadl(Device->channel, netDevice->SendBuffer, - netDevice->SendBufferSize, - &netDevice->SendBufferGpadlHandle); + ret = vmbus_establish_gpadl(device->channel, net_device->send_buf, + net_device->send_buf_size, + &net_device->send_buf_gpadl_handle); if (ret != 0) { DPRINT_ERR(NETVSC, "unable to establish send buffer's gpadl"); goto Cleanup; } - /* osd_WaitEventWait(ext->ChannelInitEvent); */ + /* osd_waitevent_wait(ext->ChannelInitEvent); */ /* Notify the NetVsp of the gpadl handle */ DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeSendSendBuffer..."); - initPacket = &netDevice->ChannelInitPacket; + init_packet = &net_device->channel_init_pkt; - memset(initPacket, 0, sizeof(struct nvsp_message)); + memset(init_packet, 0, sizeof(struct nvsp_message)); - initPacket->Header.MessageType = NvspMessage1TypeSendSendBuffer; - initPacket->Messages.Version1Messages.SendReceiveBuffer.GpadlHandle = netDevice->SendBufferGpadlHandle; - initPacket->Messages.Version1Messages.SendReceiveBuffer.Id = NETVSC_SEND_BUFFER_ID; + init_packet->hdr.msg_type = NVSP_MSG1_TYPE_SEND_SEND_BUF; + init_packet->msg.v1_msg.send_recv_buf. + gpadl_handle = net_device->send_buf_gpadl_handle; + init_packet->msg.v1_msg.send_recv_buf.id = + NETVSC_SEND_BUFFER_ID; /* Send the gpadl notification request */ - ret = vmbus_sendpacket(Device->channel, initPacket, + ret = vmbus_sendpacket(device->channel, init_packet, sizeof(struct nvsp_message), - (unsigned long)initPacket, + (unsigned long)init_packet, VmbusPacketTypeDataInBand, VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED); if (ret != 0) { @@ -400,32 +412,35 @@ static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device) goto Cleanup; } - osd_WaitEventWait(netDevice->ChannelInitEvent); + osd_waitevent_wait(net_device->channel_init_event); /* Check the response */ - if (initPacket->Messages.Version1Messages.SendSendBufferComplete.Status != NvspStatusSuccess) { + if (init_packet->msg.v1_msg. + send_send_buf_complete.status != NVSP_STAT_SUCCESS) { DPRINT_ERR(NETVSC, "Unable to complete send buffer " "initialzation with NetVsp - status %d", - initPacket->Messages.Version1Messages.SendSendBufferComplete.Status); + init_packet->msg.v1_msg. + send_send_buf_complete.status); ret = -1; goto Cleanup; } - netDevice->SendSectionSize = initPacket->Messages.Version1Messages.SendSendBufferComplete.SectionSize; + net_device->send_section_size = init_packet-> + msg.v1_msg.send_send_buf_complete.section_size; goto Exit; Cleanup: - NetVscDestroySendBuffer(netDevice); + netvsc_destroy_send_buf(net_device); Exit: - PutNetDevice(Device); + put_net_device(device); return ret; } -static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice) +static int netvsc_destroy_recv_buf(struct netvsc_device *net_device) { - struct nvsp_message *revokePacket; + struct nvsp_message *revoke_packet; int ret = 0; /* @@ -434,20 +449,23 @@ static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice) * NvspMessage1TypeSendReceiveBuffer msg) therefore, we need * to send a revoke msg here */ - if (NetDevice->ReceiveSectionCount) { + if (net_device->recv_section_cnt) { DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeRevokeReceiveBuffer..."); /* Send the revoke receive buffer */ - revokePacket = &NetDevice->RevokePacket; - memset(revokePacket, 0, sizeof(struct nvsp_message)); + revoke_packet = &net_device->revoke_packet; + memset(revoke_packet, 0, sizeof(struct nvsp_message)); - revokePacket->Header.MessageType = NvspMessage1TypeRevokeReceiveBuffer; - revokePacket->Messages.Version1Messages.RevokeReceiveBuffer.Id = NETVSC_RECEIVE_BUFFER_ID; + revoke_packet->hdr.msg_type = + NVSP_MSG1_TYPE_REVOKE_RECV_BUF; + revoke_packet->msg.v1_msg. + revoke_recv_buf.id = NETVSC_RECEIVE_BUFFER_ID; - ret = vmbus_sendpacket(NetDevice->Device->channel, revokePacket, + ret = vmbus_sendpacket(net_device->dev->channel, + revoke_packet, sizeof(struct nvsp_message), - (unsigned long)revokePacket, + (unsigned long)revoke_packet, VmbusPacketTypeDataInBand, 0); /* * If we failed here, we might as well return and @@ -461,11 +479,11 @@ static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice) } /* Teardown the gpadl on the vsp end */ - if (NetDevice->ReceiveBufferGpadlHandle) { + if (net_device->recv_buf_gpadl_handle) { DPRINT_INFO(NETVSC, "Tearing down receive buffer's GPADL..."); - ret = vmbus_teardown_gpadl(NetDevice->Device->channel, - NetDevice->ReceiveBufferGpadlHandle); + ret = vmbus_teardown_gpadl(net_device->dev->channel, + net_device->recv_buf_gpadl_handle); /* If we failed here, we might as well return and have a leak rather than continue and a bugchk */ if (ret != 0) { @@ -473,30 +491,30 @@ static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice) "unable to teardown receive buffer's gpadl"); return -1; } - NetDevice->ReceiveBufferGpadlHandle = 0; + net_device->recv_buf_gpadl_handle = 0; } - if (NetDevice->ReceiveBuffer) { + if (net_device->recv_buf) { DPRINT_INFO(NETVSC, "Freeing up receive buffer..."); /* Free up the receive buffer */ - osd_PageFree(NetDevice->ReceiveBuffer, - NetDevice->ReceiveBufferSize >> PAGE_SHIFT); - NetDevice->ReceiveBuffer = NULL; + osd_page_free(net_device->recv_buf, + net_device->recv_buf_size >> PAGE_SHIFT); + net_device->recv_buf = NULL; } - if (NetDevice->ReceiveSections) { - NetDevice->ReceiveSectionCount = 0; - kfree(NetDevice->ReceiveSections); - NetDevice->ReceiveSections = NULL; + if (net_device->recv_section) { + net_device->recv_section_cnt = 0; + kfree(net_device->recv_section); + net_device->recv_section = NULL; } return ret; } -static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice) +static int netvsc_destroy_send_buf(struct netvsc_device *net_device) { - struct nvsp_message *revokePacket; + struct nvsp_message *revoke_packet; int ret = 0; /* @@ -505,20 +523,23 @@ static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice) * NvspMessage1TypeSendReceiveBuffer msg) therefore, we need * to send a revoke msg here */ - if (NetDevice->SendSectionSize) { + if (net_device->send_section_size) { DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeRevokeSendBuffer..."); /* Send the revoke send buffer */ - revokePacket = &NetDevice->RevokePacket; - memset(revokePacket, 0, sizeof(struct nvsp_message)); + revoke_packet = &net_device->revoke_packet; + memset(revoke_packet, 0, sizeof(struct nvsp_message)); - revokePacket->Header.MessageType = NvspMessage1TypeRevokeSendBuffer; - revokePacket->Messages.Version1Messages.RevokeSendBuffer.Id = NETVSC_SEND_BUFFER_ID; + revoke_packet->hdr.msg_type = + NVSP_MSG1_TYPE_REVOKE_SEND_BUF; + revoke_packet->msg.v1_msg. + revoke_send_buf.id = NETVSC_SEND_BUFFER_ID; - ret = vmbus_sendpacket(NetDevice->Device->channel, revokePacket, + ret = vmbus_sendpacket(net_device->dev->channel, + revoke_packet, sizeof(struct nvsp_message), - (unsigned long)revokePacket, + (unsigned long)revoke_packet, VmbusPacketTypeDataInBand, 0); /* * If we failed here, we might as well return and have a leak @@ -532,10 +553,10 @@ static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice) } /* Teardown the gpadl on the vsp end */ - if (NetDevice->SendBufferGpadlHandle) { + if (net_device->send_buf_gpadl_handle) { DPRINT_INFO(NETVSC, "Tearing down send buffer's GPADL..."); - ret = vmbus_teardown_gpadl(NetDevice->Device->channel, - NetDevice->SendBufferGpadlHandle); + ret = vmbus_teardown_gpadl(net_device->dev->channel, + net_device->send_buf_gpadl_handle); /* * If we failed here, we might as well return and have a leak @@ -546,49 +567,51 @@ static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice) "gpadl"); return -1; } - NetDevice->SendBufferGpadlHandle = 0; + net_device->send_buf_gpadl_handle = 0; } - if (NetDevice->SendBuffer) { + if (net_device->send_buf) { DPRINT_INFO(NETVSC, "Freeing up send buffer..."); /* Free up the receive buffer */ - osd_PageFree(NetDevice->SendBuffer, - NetDevice->SendBufferSize >> PAGE_SHIFT); - NetDevice->SendBuffer = NULL; + osd_page_free(net_device->send_buf, + net_device->send_buf_size >> PAGE_SHIFT); + net_device->send_buf = NULL; } return ret; } -static int NetVscConnectToVsp(struct hv_device *Device) +static int netvsc_connect_vsp(struct hv_device *device) { int ret; - struct netvsc_device *netDevice; - struct nvsp_message *initPacket; - int ndisVersion; + struct netvsc_device *net_device; + struct nvsp_message *init_packet; + int ndis_version; - netDevice = GetOutboundNetDevice(Device); - if (!netDevice) { + net_device = get_outbound_net_device(device); + if (!net_device) { DPRINT_ERR(NETVSC, "unable to get net device..." "device being destroyed?"); return -1; } - initPacket = &netDevice->ChannelInitPacket; + init_packet = &net_device->channel_init_pkt; - memset(initPacket, 0, sizeof(struct nvsp_message)); - initPacket->Header.MessageType = NvspMessageTypeInit; - initPacket->Messages.InitMessages.Init.MinProtocolVersion = NVSP_MIN_PROTOCOL_VERSION; - initPacket->Messages.InitMessages.Init.MaxProtocolVersion = NVSP_MAX_PROTOCOL_VERSION; + memset(init_packet, 0, sizeof(struct nvsp_message)); + init_packet->hdr.msg_type = NVSP_MSG_TYPE_INIT; + init_packet->msg.init_msg.init.min_protocol_ver = + NVSP_MIN_PROTOCOL_VERSION; + init_packet->msg.init_msg.init.max_protocol_ver = + NVSP_MAX_PROTOCOL_VERSION; DPRINT_INFO(NETVSC, "Sending NvspMessageTypeInit..."); /* Send the init request */ - ret = vmbus_sendpacket(Device->channel, initPacket, + ret = vmbus_sendpacket(device->channel, init_packet, sizeof(struct nvsp_message), - (unsigned long)initPacket, + (unsigned long)init_packet, VmbusPacketTypeDataInBand, VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED); @@ -597,47 +620,52 @@ static int NetVscConnectToVsp(struct hv_device *Device) goto Cleanup; } - osd_WaitEventWait(netDevice->ChannelInitEvent); + osd_waitevent_wait(net_device->channel_init_event); /* Now, check the response */ /* ASSERT(initPacket->Messages.InitMessages.InitComplete.MaximumMdlChainLength <= MAX_MULTIPAGE_BUFFER_COUNT); */ DPRINT_INFO(NETVSC, "NvspMessageTypeInit status(%d) max mdl chain (%d)", - initPacket->Messages.InitMessages.InitComplete.Status, - initPacket->Messages.InitMessages.InitComplete.MaximumMdlChainLength); + init_packet->msg.init_msg.init_complete.status, + init_packet->msg.init_msg. + init_complete.max_mdl_chain_len); - if (initPacket->Messages.InitMessages.InitComplete.Status != - NvspStatusSuccess) { + if (init_packet->msg.init_msg.init_complete.status != + NVSP_STAT_SUCCESS) { DPRINT_ERR(NETVSC, "unable to initialize with netvsp (status 0x%x)", - initPacket->Messages.InitMessages.InitComplete.Status); + init_packet->msg.init_msg.init_complete.status); ret = -1; goto Cleanup; } - if (initPacket->Messages.InitMessages.InitComplete.NegotiatedProtocolVersion != NVSP_PROTOCOL_VERSION_1) { + if (init_packet->msg.init_msg.init_complete. + negotiated_protocol_ver != NVSP_PROTOCOL_VERSION_1) { DPRINT_ERR(NETVSC, "unable to initialize with netvsp " "(version expected 1 got %d)", - initPacket->Messages.InitMessages.InitComplete.NegotiatedProtocolVersion); + init_packet->msg.init_msg. + init_complete.negotiated_protocol_ver); ret = -1; goto Cleanup; } DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeSendNdisVersion..."); /* Send the ndis version */ - memset(initPacket, 0, sizeof(struct nvsp_message)); + memset(init_packet, 0, sizeof(struct nvsp_message)); - ndisVersion = 0x00050000; + ndis_version = 0x00050000; - initPacket->Header.MessageType = NvspMessage1TypeSendNdisVersion; - initPacket->Messages.Version1Messages.SendNdisVersion.NdisMajorVersion = - (ndisVersion & 0xFFFF0000) >> 16; - initPacket->Messages.Version1Messages.SendNdisVersion.NdisMinorVersion = - ndisVersion & 0xFFFF; + init_packet->hdr.msg_type = NVSP_MSG1_TYPE_SEND_NDIS_VER; + init_packet->msg.v1_msg. + send_ndis_ver.ndis_major_ver = + (ndis_version & 0xFFFF0000) >> 16; + init_packet->msg.v1_msg. + send_ndis_ver.ndis_minor_ver = + ndis_version & 0xFFFF; /* Send the init request */ - ret = vmbus_sendpacket(Device->channel, initPacket, + ret = vmbus_sendpacket(device->channel, init_packet, sizeof(struct nvsp_message), - (unsigned long)initPacket, + (unsigned long)init_packet, VmbusPacketTypeDataInBand, 0); if (ret != 0) { DPRINT_ERR(NETVSC, @@ -651,51 +679,52 @@ static int NetVscConnectToVsp(struct hv_device *Device) * packet) since our Vmbus always set the * VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED flag */ - /* osd_WaitEventWait(NetVscChannel->ChannelInitEvent); */ + /* osd_waitevent_wait(NetVscChannel->ChannelInitEvent); */ /* Post the big receive buffer to NetVSP */ - ret = NetVscInitializeReceiveBufferWithNetVsp(Device); + ret = netvsc_init_recv_buf(device); if (ret == 0) - ret = NetVscInitializeSendBufferWithNetVsp(Device); + ret = netvsc_init_send_buf(device); Cleanup: - PutNetDevice(Device); + put_net_device(device); return ret; } -static void NetVscDisconnectFromVsp(struct netvsc_device *NetDevice) +static void NetVscDisconnectFromVsp(struct netvsc_device *net_device) { - NetVscDestroyReceiveBuffer(NetDevice); - NetVscDestroySendBuffer(NetDevice); + netvsc_destroy_recv_buf(net_device); + netvsc_destroy_send_buf(net_device); } /* - * NetVscOnDeviceAdd - Callback when the device belonging to this driver is added + * netvsc_device_add - Callback when the device belonging to this + * driver is added */ -static int NetVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo) +static int netvsc_device_add(struct hv_device *device, void *additional_info) { int ret = 0; int i; - struct netvsc_device *netDevice; + struct netvsc_device *net_device; struct hv_netvsc_packet *packet, *pos; - struct netvsc_driver *netDriver = - (struct netvsc_driver *)Device->Driver; + struct netvsc_driver *net_driver = + (struct netvsc_driver *)device->Driver; - netDevice = AllocNetDevice(Device); - if (!netDevice) { + net_device = alloc_net_device(device); + if (!net_device) { ret = -1; goto Cleanup; } - DPRINT_DBG(NETVSC, "netvsc channel object allocated - %p", netDevice); + DPRINT_DBG(NETVSC, "netvsc channel object allocated - %p", net_device); /* Initialize the NetVSC channel extension */ - netDevice->ReceiveBufferSize = NETVSC_RECEIVE_BUFFER_SIZE; - spin_lock_init(&netDevice->receive_packet_list_lock); + net_device->recv_buf_size = NETVSC_RECEIVE_BUFFER_SIZE; + spin_lock_init(&net_device->recv_pkt_list_lock); - netDevice->SendBufferSize = NETVSC_SEND_BUFFER_SIZE; + net_device->send_buf_size = NETVSC_SEND_BUFFER_SIZE; - INIT_LIST_HEAD(&netDevice->ReceivePacketList); + INIT_LIST_HEAD(&net_device->recv_pkt_list); for (i = 0; i < NETVSC_RECEIVE_PACKETLIST_COUNT; i++) { packet = kzalloc(sizeof(struct hv_netvsc_packet) + @@ -707,19 +736,19 @@ static int NetVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo) NETVSC_RECEIVE_PACKETLIST_COUNT, i); break; } - list_add_tail(&packet->ListEntry, - &netDevice->ReceivePacketList); + list_add_tail(&packet->list_ent, + &net_device->recv_pkt_list); } - netDevice->ChannelInitEvent = osd_WaitEventCreate(); - if (!netDevice->ChannelInitEvent) { + net_device->channel_init_event = osd_waitevent_create(); + if (!net_device->channel_init_event) { ret = -ENOMEM; goto Cleanup; } /* Open the channel */ - ret = vmbus_open(Device->channel, netDriver->RingBufferSize, - netDriver->RingBufferSize, NULL, 0, - NetVscOnChannelCallback, Device); + ret = vmbus_open(device->channel, net_driver->ring_buf_size, + net_driver->ring_buf_size, NULL, 0, + netvsc_channel_cb, device); if (ret != 0) { DPRINT_ERR(NETVSC, "unable to open channel: %d", ret); @@ -731,7 +760,7 @@ static int NetVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo) DPRINT_INFO(NETVSC, "*** NetVSC channel opened successfully! ***"); /* Connect with the NetVsp */ - ret = NetVscConnectToVsp(Device); + ret = netvsc_connect_vsp(device); if (ret != 0) { DPRINT_ERR(NETVSC, "unable to connect to NetVSP - %d", ret); ret = -1; @@ -745,174 +774,178 @@ static int NetVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo) close: /* Now, we can close the channel safely */ - vmbus_close(Device->channel); + vmbus_close(device->channel); Cleanup: - if (netDevice) { - kfree(netDevice->ChannelInitEvent); + if (net_device) { + kfree(net_device->channel_init_event); list_for_each_entry_safe(packet, pos, - &netDevice->ReceivePacketList, - ListEntry) { - list_del(&packet->ListEntry); + &net_device->recv_pkt_list, + list_ent) { + list_del(&packet->list_ent); kfree(packet); } - ReleaseOutboundNetDevice(Device); - ReleaseInboundNetDevice(Device); + release_outbound_net_device(device); + release_inbound_net_device(device); - FreeNetDevice(netDevice); + free_net_device(net_device); } return ret; } /* - * NetVscOnDeviceRemove - Callback when the root bus device is removed + * netvsc_device_remove - Callback when the root bus device is removed */ -static int NetVscOnDeviceRemove(struct hv_device *Device) +static int netvsc_device_remove(struct hv_device *device) { - struct netvsc_device *netDevice; - struct hv_netvsc_packet *netvscPacket, *pos; + struct netvsc_device *net_device; + struct hv_netvsc_packet *netvsc_packet, *pos; DPRINT_INFO(NETVSC, "Disabling outbound traffic on net device (%p)...", - Device->Extension); + device->Extension); /* Stop outbound traffic ie sends and receives completions */ - netDevice = ReleaseOutboundNetDevice(Device); - if (!netDevice) { + net_device = release_outbound_net_device(device); + if (!net_device) { DPRINT_ERR(NETVSC, "No net device present!!"); return -1; } /* Wait for all send completions */ - while (atomic_read(&netDevice->NumOutstandingSends)) { + while (atomic_read(&net_device->num_outstanding_sends)) { DPRINT_INFO(NETVSC, "waiting for %d requests to complete...", - atomic_read(&netDevice->NumOutstandingSends)); + atomic_read(&net_device->num_outstanding_sends)); udelay(100); } DPRINT_INFO(NETVSC, "Disconnecting from netvsp..."); - NetVscDisconnectFromVsp(netDevice); + NetVscDisconnectFromVsp(net_device); DPRINT_INFO(NETVSC, "Disabling inbound traffic on net device (%p)...", - Device->Extension); + device->Extension); /* Stop inbound traffic ie receives and sends completions */ - netDevice = ReleaseInboundNetDevice(Device); + net_device = release_inbound_net_device(device); /* At this point, no one should be accessing netDevice except in here */ - DPRINT_INFO(NETVSC, "net device (%p) safe to remove", netDevice); + DPRINT_INFO(NETVSC, "net device (%p) safe to remove", net_device); /* Now, we can close the channel safely */ - vmbus_close(Device->channel); + vmbus_close(device->channel); /* Release all resources */ - list_for_each_entry_safe(netvscPacket, pos, - &netDevice->ReceivePacketList, ListEntry) { - list_del(&netvscPacket->ListEntry); - kfree(netvscPacket); + list_for_each_entry_safe(netvsc_packet, pos, + &net_device->recv_pkt_list, list_ent) { + list_del(&netvsc_packet->list_ent); + kfree(netvsc_packet); } - kfree(netDevice->ChannelInitEvent); - FreeNetDevice(netDevice); + kfree(net_device->channel_init_event); + free_net_device(net_device); return 0; } /* - * NetVscOnCleanup - Perform any cleanup when the driver is removed + * netvsc_cleanup - Perform any cleanup when the driver is removed */ -static void NetVscOnCleanup(struct hv_driver *drv) +static void netvsc_cleanup(struct hv_driver *drv) { } -static void NetVscOnSendCompletion(struct hv_device *Device, - struct vmpacket_descriptor *Packet) +static void netvsc_send_completion(struct hv_device *device, + struct vmpacket_descriptor *packet) { - struct netvsc_device *netDevice; - struct nvsp_message *nvspPacket; - struct hv_netvsc_packet *nvscPacket; + struct netvsc_device *net_device; + struct nvsp_message *nvsp_packet; + struct hv_netvsc_packet *nvsc_packet; - netDevice = GetInboundNetDevice(Device); - if (!netDevice) { + net_device = get_inbound_net_device(device); + if (!net_device) { DPRINT_ERR(NETVSC, "unable to get net device..." "device being destroyed?"); return; } - nvspPacket = (struct nvsp_message *)((unsigned long)Packet + (Packet->DataOffset8 << 3)); + nvsp_packet = (struct nvsp_message *)((unsigned long)packet + + (packet->DataOffset8 << 3)); DPRINT_DBG(NETVSC, "send completion packet - type %d", - nvspPacket->Header.MessageType); + nvsp_packet->hdr.msg_type); - if ((nvspPacket->Header.MessageType == NvspMessageTypeInitComplete) || - (nvspPacket->Header.MessageType == - NvspMessage1TypeSendReceiveBufferComplete) || - (nvspPacket->Header.MessageType == - NvspMessage1TypeSendSendBufferComplete)) { + if ((nvsp_packet->hdr.msg_type == NVSP_MSG_TYPE_INIT_COMPLETE) || + (nvsp_packet->hdr.msg_type == + NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE) || + (nvsp_packet->hdr.msg_type == + NVSP_MSG1_TYPE_SEND_SEND_BUF_COMPLETE)) { /* Copy the response back */ - memcpy(&netDevice->ChannelInitPacket, nvspPacket, + memcpy(&net_device->channel_init_pkt, nvsp_packet, sizeof(struct nvsp_message)); - osd_WaitEventSet(netDevice->ChannelInitEvent); - } else if (nvspPacket->Header.MessageType == - NvspMessage1TypeSendRNDISPacketComplete) { + osd_waitevent_set(net_device->channel_init_event); + } else if (nvsp_packet->hdr.msg_type == + NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE) { /* Get the send context */ - nvscPacket = (struct hv_netvsc_packet *)(unsigned long)Packet->TransactionId; + nvsc_packet = (struct hv_netvsc_packet *)(unsigned long) + packet->TransactionId; /* ASSERT(nvscPacket); */ /* Notify the layer above us */ - nvscPacket->Completion.Send.OnSendCompletion(nvscPacket->Completion.Send.SendCompletionContext); + nvsc_packet->completion.send.send_completion( + nvsc_packet->completion.send.send_completion_ctx); - atomic_dec(&netDevice->NumOutstandingSends); + atomic_dec(&net_device->num_outstanding_sends); } else { DPRINT_ERR(NETVSC, "Unknown send completion packet type - " - "%d received!!", nvspPacket->Header.MessageType); + "%d received!!", nvsp_packet->hdr.msg_type); } - PutNetDevice(Device); + put_net_device(device); } -static int NetVscOnSend(struct hv_device *Device, - struct hv_netvsc_packet *Packet) +static int netvsc_send(struct hv_device *device, + struct hv_netvsc_packet *packet) { - struct netvsc_device *netDevice; + struct netvsc_device *net_device; int ret = 0; struct nvsp_message sendMessage; - netDevice = GetOutboundNetDevice(Device); - if (!netDevice) { + net_device = get_outbound_net_device(device); + if (!net_device) { DPRINT_ERR(NETVSC, "net device (%p) shutting down..." - "ignoring outbound packets", netDevice); + "ignoring outbound packets", net_device); return -2; } - sendMessage.Header.MessageType = NvspMessage1TypeSendRNDISPacket; - if (Packet->IsDataPacket) { + sendMessage.hdr.msg_type = NVSP_MSG1_TYPE_SEND_RNDIS_PKT; + if (packet->is_data_pkt) { /* 0 is RMC_DATA; */ - sendMessage.Messages.Version1Messages.SendRNDISPacket.ChannelType = 0; + sendMessage.msg.v1_msg.send_rndis_pkt.channel_type = 0; } else { /* 1 is RMC_CONTROL; */ - sendMessage.Messages.Version1Messages.SendRNDISPacket.ChannelType = 1; + sendMessage.msg.v1_msg.send_rndis_pkt.channel_type = 1; } /* Not using send buffer section */ - sendMessage.Messages.Version1Messages.SendRNDISPacket.SendBufferSectionIndex = 0xFFFFFFFF; - sendMessage.Messages.Version1Messages.SendRNDISPacket.SendBufferSectionSize = 0; - - if (Packet->PageBufferCount) { - ret = vmbus_sendpacket_pagebuffer(Device->channel, - Packet->PageBuffers, - Packet->PageBufferCount, + sendMessage.msg.v1_msg.send_rndis_pkt.send_buf_section_index = + 0xFFFFFFFF; + sendMessage.msg.v1_msg.send_rndis_pkt.send_buf_section_size = 0; + + if (packet->page_buf_cnt) { + ret = vmbus_sendpacket_pagebuffer(device->channel, + packet->page_buf, + packet->page_buf_cnt, &sendMessage, sizeof(struct nvsp_message), - (unsigned long)Packet); + (unsigned long)packet); } else { - ret = vmbus_sendpacket(Device->channel, &sendMessage, + ret = vmbus_sendpacket(device->channel, &sendMessage, sizeof(struct nvsp_message), - (unsigned long)Packet, + (unsigned long)packet, VmbusPacketTypeDataInBand, VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED); @@ -920,31 +953,31 @@ static int NetVscOnSend(struct hv_device *Device, if (ret != 0) DPRINT_ERR(NETVSC, "Unable to send packet %p ret %d", - Packet, ret); + packet, ret); - atomic_inc(&netDevice->NumOutstandingSends); - PutNetDevice(Device); + atomic_inc(&net_device->num_outstanding_sends); + put_net_device(device); return ret; } -static void NetVscOnReceive(struct hv_device *Device, - struct vmpacket_descriptor *Packet) +static void netvsc_receive(struct hv_device *device, + struct vmpacket_descriptor *packet) { - struct netvsc_device *netDevice; - struct vmtransfer_page_packet_header *vmxferpagePacket; - struct nvsp_message *nvspPacket; - struct hv_netvsc_packet *netvscPacket = NULL; + struct netvsc_device *net_device; + struct vmtransfer_page_packet_header *vmxferpage_packet; + struct nvsp_message *nvsp_packet; + struct hv_netvsc_packet *netvsc_packet = NULL; unsigned long start; - unsigned long end, endVirtual; + unsigned long end, end_virtual; /* struct netvsc_driver *netvscDriver; */ - struct xferpage_packet *xferpagePacket = NULL; + struct xferpage_packet *xferpage_packet = NULL; int i, j; - int count = 0, bytesRemain = 0; + int count = 0, bytes_remain = 0; unsigned long flags; LIST_HEAD(listHead); - netDevice = GetInboundNetDevice(Device); - if (!netDevice) { + net_device = get_inbound_net_device(device); + if (!net_device) { DPRINT_ERR(NETVSC, "unable to get net device..." "device being destroyed?"); return; @@ -954,39 +987,40 @@ static void NetVscOnReceive(struct hv_device *Device, * All inbound packets other than send completion should be xfer page * packet */ - if (Packet->Type != VmbusPacketTypeDataUsingTransferPages) { + if (packet->Type != VmbusPacketTypeDataUsingTransferPages) { DPRINT_ERR(NETVSC, "Unknown packet type received - %d", - Packet->Type); - PutNetDevice(Device); + packet->Type); + put_net_device(device); return; } - nvspPacket = (struct nvsp_message *)((unsigned long)Packet + - (Packet->DataOffset8 << 3)); + nvsp_packet = (struct nvsp_message *)((unsigned long)packet + + (packet->DataOffset8 << 3)); /* Make sure this is a valid nvsp packet */ - if (nvspPacket->Header.MessageType != NvspMessage1TypeSendRNDISPacket) { + if (nvsp_packet->hdr.msg_type != + NVSP_MSG1_TYPE_SEND_RNDIS_PKT) { DPRINT_ERR(NETVSC, "Unknown nvsp packet type received - %d", - nvspPacket->Header.MessageType); - PutNetDevice(Device); + nvsp_packet->hdr.msg_type); + put_net_device(device); return; } DPRINT_DBG(NETVSC, "NVSP packet received - type %d", - nvspPacket->Header.MessageType); + nvsp_packet->hdr.msg_type); - vmxferpagePacket = (struct vmtransfer_page_packet_header *)Packet; + vmxferpage_packet = (struct vmtransfer_page_packet_header *)packet; - if (vmxferpagePacket->TransferPageSetId != NETVSC_RECEIVE_BUFFER_ID) { + if (vmxferpage_packet->TransferPageSetId != NETVSC_RECEIVE_BUFFER_ID) { DPRINT_ERR(NETVSC, "Invalid xfer page set id - " "expecting %x got %x", NETVSC_RECEIVE_BUFFER_ID, - vmxferpagePacket->TransferPageSetId); - PutNetDevice(Device); + vmxferpage_packet->TransferPageSetId); + put_net_device(device); return; } DPRINT_DBG(NETVSC, "xfer page - range count %d", - vmxferpagePacket->RangeCount); + vmxferpage_packet->RangeCount); /* * Grab free packets (range count + 1) to represent this xfer @@ -994,13 +1028,13 @@ static void NetVscOnReceive(struct hv_device *Device, * We grab it here so that we know exactly how many we can * fulfil */ - spin_lock_irqsave(&netDevice->receive_packet_list_lock, flags); - while (!list_empty(&netDevice->ReceivePacketList)) { - list_move_tail(netDevice->ReceivePacketList.next, &listHead); - if (++count == vmxferpagePacket->RangeCount + 1) + spin_lock_irqsave(&net_device->recv_pkt_list_lock, flags); + while (!list_empty(&net_device->recv_pkt_list)) { + list_move_tail(net_device->recv_pkt_list.next, &listHead); + if (++count == vmxferpage_packet->RangeCount + 1) break; } - spin_unlock_irqrestore(&netDevice->receive_packet_list_lock, flags); + spin_unlock_irqrestore(&net_device->recv_pkt_list_lock, flags); /* * We need at least 2 netvsc pkts (1 to represent the xfer @@ -1010,140 +1044,149 @@ static void NetVscOnReceive(struct hv_device *Device, if (count < 2) { DPRINT_ERR(NETVSC, "Got only %d netvsc pkt...needed %d pkts. " "Dropping this xfer page packet completely!", - count, vmxferpagePacket->RangeCount + 1); + count, vmxferpage_packet->RangeCount + 1); /* Return it to the freelist */ - spin_lock_irqsave(&netDevice->receive_packet_list_lock, flags); + spin_lock_irqsave(&net_device->recv_pkt_list_lock, flags); for (i = count; i != 0; i--) { list_move_tail(listHead.next, - &netDevice->ReceivePacketList); + &net_device->recv_pkt_list); } - spin_unlock_irqrestore(&netDevice->receive_packet_list_lock, + spin_unlock_irqrestore(&net_device->recv_pkt_list_lock, flags); - NetVscSendReceiveCompletion(Device, - vmxferpagePacket->d.TransactionId); + netvsc_send_recv_completion(device, + vmxferpage_packet->d.TransactionId); - PutNetDevice(Device); + put_net_device(device); return; } /* Remove the 1st packet to represent the xfer page packet itself */ - xferpagePacket = (struct xferpage_packet *)listHead.next; - list_del(&xferpagePacket->ListEntry); + xferpage_packet = (struct xferpage_packet *)listHead.next; + list_del(&xferpage_packet->list_ent); /* This is how much we can satisfy */ - xferpagePacket->Count = count - 1; + xferpage_packet->count = count - 1; /* ASSERT(xferpagePacket->Count > 0 && xferpagePacket->Count <= */ /* vmxferpagePacket->RangeCount); */ - if (xferpagePacket->Count != vmxferpagePacket->RangeCount) { + if (xferpage_packet->count != vmxferpage_packet->RangeCount) { DPRINT_INFO(NETVSC, "Needed %d netvsc pkts to satisy this xfer " - "page...got %d", vmxferpagePacket->RangeCount, - xferpagePacket->Count); + "page...got %d", vmxferpage_packet->RangeCount, + xferpage_packet->count); } /* Each range represents 1 RNDIS pkt that contains 1 ethernet frame */ for (i = 0; i < (count - 1); i++) { - netvscPacket = (struct hv_netvsc_packet *)listHead.next; - list_del(&netvscPacket->ListEntry); + netvsc_packet = (struct hv_netvsc_packet *)listHead.next; + list_del(&netvsc_packet->list_ent); /* Initialize the netvsc packet */ - netvscPacket->XferPagePacket = xferpagePacket; - netvscPacket->Completion.Recv.OnReceiveCompletion = - NetVscOnReceiveCompletion; - netvscPacket->Completion.Recv.ReceiveCompletionContext = - netvscPacket; - netvscPacket->Device = Device; + netvsc_packet->xfer_page_pkt = xferpage_packet; + netvsc_packet->completion.recv.recv_completion = + netvsc_receive_completion; + netvsc_packet->completion.recv.recv_completion_ctx = + netvsc_packet; + netvsc_packet->device = device; /* Save this so that we can send it back */ - netvscPacket->Completion.Recv.ReceiveCompletionTid = - vmxferpagePacket->d.TransactionId; + netvsc_packet->completion.recv.recv_completion_tid = + vmxferpage_packet->d.TransactionId; - netvscPacket->TotalDataBufferLength = - vmxferpagePacket->Ranges[i].ByteCount; - netvscPacket->PageBufferCount = 1; + netvsc_packet->total_data_buflen = + vmxferpage_packet->Ranges[i].ByteCount; + netvsc_packet->page_buf_cnt = 1; /* ASSERT(vmxferpagePacket->Ranges[i].ByteOffset + */ /* vmxferpagePacket->Ranges[i].ByteCount < */ /* netDevice->ReceiveBufferSize); */ - netvscPacket->PageBuffers[0].Length = - vmxferpagePacket->Ranges[i].ByteCount; + netvsc_packet->page_buf[0].Length = + vmxferpage_packet->Ranges[i].ByteCount; - start = virt_to_phys((void *)((unsigned long)netDevice->ReceiveBuffer + vmxferpagePacket->Ranges[i].ByteOffset)); + start = virt_to_phys((void *)((unsigned long)net_device-> + recv_buf + vmxferpage_packet->Ranges[i].ByteOffset)); - netvscPacket->PageBuffers[0].Pfn = start >> PAGE_SHIFT; - endVirtual = (unsigned long)netDevice->ReceiveBuffer - + vmxferpagePacket->Ranges[i].ByteOffset - + vmxferpagePacket->Ranges[i].ByteCount - 1; - end = virt_to_phys((void *)endVirtual); + netvsc_packet->page_buf[0].Pfn = start >> PAGE_SHIFT; + end_virtual = (unsigned long)net_device->recv_buf + + vmxferpage_packet->Ranges[i].ByteOffset + + vmxferpage_packet->Ranges[i].ByteCount - 1; + end = virt_to_phys((void *)end_virtual); /* Calculate the page relative offset */ - netvscPacket->PageBuffers[0].Offset = - vmxferpagePacket->Ranges[i].ByteOffset & (PAGE_SIZE - 1); + netvsc_packet->page_buf[0].Offset = + vmxferpage_packet->Ranges[i].ByteOffset & + (PAGE_SIZE - 1); if ((end >> PAGE_SHIFT) != (start >> PAGE_SHIFT)) { /* Handle frame across multiple pages: */ - netvscPacket->PageBuffers[0].Length = - (netvscPacket->PageBuffers[0].Pfn << PAGE_SHIFT) + netvsc_packet->page_buf[0].Length = + (netvsc_packet->page_buf[0].Pfn << + PAGE_SHIFT) + PAGE_SIZE - start; - bytesRemain = netvscPacket->TotalDataBufferLength - - netvscPacket->PageBuffers[0].Length; + bytes_remain = netvsc_packet->total_data_buflen - + netvsc_packet->page_buf[0].Length; for (j = 1; j < NETVSC_PACKET_MAXPAGE; j++) { - netvscPacket->PageBuffers[j].Offset = 0; - if (bytesRemain <= PAGE_SIZE) { - netvscPacket->PageBuffers[j].Length = bytesRemain; - bytesRemain = 0; + netvsc_packet->page_buf[j].Offset = 0; + if (bytes_remain <= PAGE_SIZE) { + netvsc_packet->page_buf[j].Length = + bytes_remain; + bytes_remain = 0; } else { - netvscPacket->PageBuffers[j].Length = PAGE_SIZE; - bytesRemain -= PAGE_SIZE; + netvsc_packet->page_buf[j].Length = + PAGE_SIZE; + bytes_remain -= PAGE_SIZE; } - netvscPacket->PageBuffers[j].Pfn = - virt_to_phys((void *)(endVirtual - bytesRemain)) >> PAGE_SHIFT; - netvscPacket->PageBufferCount++; - if (bytesRemain == 0) + netvsc_packet->page_buf[j].Pfn = + virt_to_phys((void *)(end_virtual - + bytes_remain)) >> PAGE_SHIFT; + netvsc_packet->page_buf_cnt++; + if (bytes_remain == 0) break; } /* ASSERT(bytesRemain == 0); */ } DPRINT_DBG(NETVSC, "[%d] - (abs offset %u len %u) => " "(pfn %llx, offset %u, len %u)", i, - vmxferpagePacket->Ranges[i].ByteOffset, - vmxferpagePacket->Ranges[i].ByteCount, - netvscPacket->PageBuffers[0].Pfn, - netvscPacket->PageBuffers[0].Offset, - netvscPacket->PageBuffers[0].Length); + vmxferpage_packet->Ranges[i].ByteOffset, + vmxferpage_packet->Ranges[i].ByteCount, + netvsc_packet->page_buf[0].Pfn, + netvsc_packet->page_buf[0].Offset, + netvsc_packet->page_buf[0].Length); /* Pass it to the upper layer */ - ((struct netvsc_driver *)Device->Driver)->OnReceiveCallback(Device, netvscPacket); + ((struct netvsc_driver *)device->Driver)-> + recv_cb(device, netvsc_packet); - NetVscOnReceiveCompletion(netvscPacket->Completion.Recv.ReceiveCompletionContext); + netvsc_receive_completion(netvsc_packet-> + completion.recv.recv_completion_ctx); } /* ASSERT(list_empty(&listHead)); */ - PutNetDevice(Device); + put_net_device(device); } -static void NetVscSendReceiveCompletion(struct hv_device *Device, - u64 TransactionId) +static void netvsc_send_recv_completion(struct hv_device *device, + u64 transaction_id) { struct nvsp_message recvcompMessage; int retries = 0; int ret; DPRINT_DBG(NETVSC, "Sending receive completion pkt - %llx", - TransactionId); + transaction_id); - recvcompMessage.Header.MessageType = - NvspMessage1TypeSendRNDISPacketComplete; + recvcompMessage.hdr.msg_type = + NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE; /* FIXME: Pass in the status */ - recvcompMessage.Messages.Version1Messages.SendRNDISPacketComplete.Status = NvspStatusSuccess; + recvcompMessage.msg.v1_msg.send_rndis_pkt_complete.status = + NVSP_STAT_SUCCESS; retry_send_cmplt: /* Send the completion */ - ret = vmbus_sendpacket(Device->channel, &recvcompMessage, - sizeof(struct nvsp_message), TransactionId, + ret = vmbus_sendpacket(device->channel, &recvcompMessage, + sizeof(struct nvsp_message), transaction_id, VmbusPacketTypeCompletion, 0); if (ret == 0) { /* success */ @@ -1152,7 +1195,7 @@ retry_send_cmplt: /* no more room...wait a bit and attempt to retry 3 times */ retries++; DPRINT_ERR(NETVSC, "unable to send receive completion pkt " - "(tid %llx)...retrying %d", TransactionId, retries); + "(tid %llx)...retrying %d", transaction_id, retries); if (retries < 4) { udelay(100); @@ -1160,22 +1203,22 @@ retry_send_cmplt: } else { DPRINT_ERR(NETVSC, "unable to send receive completion " "pkt (tid %llx)...give up retrying", - TransactionId); + transaction_id); } } else { DPRINT_ERR(NETVSC, "unable to send receive completion pkt - " - "%llx", TransactionId); + "%llx", transaction_id); } } /* Send a receive completion packet to RNDIS device (ie NetVsp) */ -static void NetVscOnReceiveCompletion(void *Context) +static void netvsc_receive_completion(void *context) { - struct hv_netvsc_packet *packet = Context; - struct hv_device *device = (struct hv_device *)packet->Device; - struct netvsc_device *netDevice; - u64 transactionId = 0; - bool fSendReceiveComp = false; + struct hv_netvsc_packet *packet = context; + struct hv_device *device = (struct hv_device *)packet->device; + struct netvsc_device *net_device; + u64 transaction_id = 0; + bool fsend_receive_comp = false; unsigned long flags; /* ASSERT(packet->XferPagePacket); */ @@ -1185,49 +1228,49 @@ static void NetVscOnReceiveCompletion(void *Context) * send out receive completion, we are using GetInboundNetDevice() * since we may have disable outbound traffic already. */ - netDevice = GetInboundNetDevice(device); - if (!netDevice) { + net_device = get_inbound_net_device(device); + if (!net_device) { DPRINT_ERR(NETVSC, "unable to get net device..." "device being destroyed?"); return; } /* Overloading use of the lock. */ - spin_lock_irqsave(&netDevice->receive_packet_list_lock, flags); + spin_lock_irqsave(&net_device->recv_pkt_list_lock, flags); /* ASSERT(packet->XferPagePacket->Count > 0); */ - packet->XferPagePacket->Count--; + packet->xfer_page_pkt->count--; /* * Last one in the line that represent 1 xfer page packet. * Return the xfer page packet itself to the freelist */ - if (packet->XferPagePacket->Count == 0) { - fSendReceiveComp = true; - transactionId = packet->Completion.Recv.ReceiveCompletionTid; - list_add_tail(&packet->XferPagePacket->ListEntry, - &netDevice->ReceivePacketList); + if (packet->xfer_page_pkt->count == 0) { + fsend_receive_comp = true; + transaction_id = packet->completion.recv.recv_completion_tid; + list_add_tail(&packet->xfer_page_pkt->list_ent, + &net_device->recv_pkt_list); } /* Put the packet back */ - list_add_tail(&packet->ListEntry, &netDevice->ReceivePacketList); - spin_unlock_irqrestore(&netDevice->receive_packet_list_lock, flags); + list_add_tail(&packet->list_ent, &net_device->recv_pkt_list); + spin_unlock_irqrestore(&net_device->recv_pkt_list_lock, flags); /* Send a receive completion for the xfer page packet */ - if (fSendReceiveComp) - NetVscSendReceiveCompletion(device, transactionId); + if (fsend_receive_comp) + netvsc_send_recv_completion(device, transaction_id); - PutNetDevice(device); + put_net_device(device); } -static void NetVscOnChannelCallback(void *Context) +static void netvsc_channel_cb(void *context) { int ret; - struct hv_device *device = Context; - struct netvsc_device *netDevice; - u32 bytesRecvd; - u64 requestId; + struct hv_device *device = context; + struct netvsc_device *net_device; + u32 bytes_recvd; + u64 request_id; unsigned char *packet; struct vmpacket_descriptor *desc; unsigned char *buffer; @@ -1236,42 +1279,42 @@ static void NetVscOnChannelCallback(void *Context) /* ASSERT(device); */ packet = kzalloc(NETVSC_PACKET_SIZE * sizeof(unsigned char), - GFP_KERNEL); + GFP_ATOMIC); if (!packet) return; buffer = packet; - netDevice = GetInboundNetDevice(device); - if (!netDevice) { + net_device = get_inbound_net_device(device); + if (!net_device) { DPRINT_ERR(NETVSC, "net device (%p) shutting down..." - "ignoring inbound packets", netDevice); + "ignoring inbound packets", net_device); goto out; } do { ret = vmbus_recvpacket_raw(device->channel, buffer, bufferlen, - &bytesRecvd, &requestId); + &bytes_recvd, &request_id); if (ret == 0) { - if (bytesRecvd > 0) { + if (bytes_recvd > 0) { DPRINT_DBG(NETVSC, "receive %d bytes, tid %llx", - bytesRecvd, requestId); + bytes_recvd, request_id); desc = (struct vmpacket_descriptor *)buffer; switch (desc->Type) { case VmbusPacketTypeCompletion: - NetVscOnSendCompletion(device, desc); + netvsc_send_completion(device, desc); break; case VmbusPacketTypeDataUsingTransferPages: - NetVscOnReceive(device, desc); + netvsc_receive(device, desc); break; default: DPRINT_ERR(NETVSC, "unhandled packet type %d, " "tid %llx len %d\n", - desc->Type, requestId, - bytesRecvd); + desc->Type, request_id, + bytes_recvd); break; } @@ -1293,20 +1336,20 @@ static void NetVscOnChannelCallback(void *Context) } } else if (ret == -2) { /* Handle large packet */ - buffer = kmalloc(bytesRecvd, GFP_ATOMIC); + buffer = kmalloc(bytes_recvd, GFP_ATOMIC); if (buffer == NULL) { /* Try again next time around */ DPRINT_ERR(NETVSC, "unable to allocate buffer of size " - "(%d)!!", bytesRecvd); + "(%d)!!", bytes_recvd); break; } - bufferlen = bytesRecvd; + bufferlen = bytes_recvd; } } while (1); - PutNetDevice(device); + put_net_device(device); out: kfree(buffer); return; |