mirror of
https://github.com/adulau/aha.git
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Staging: hv: reorg StorVsc.c
This gets rid of all of the forward declarations. Cc: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
parent
068c5df20e
commit
163680b4db
1 changed files with 250 additions and 267 deletions
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@ -79,21 +79,6 @@ static const struct hv_guid gStorVscDeviceType = {
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};
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};
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static int StorVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo);
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static int StorVscOnDeviceRemove(struct hv_device *Device);
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static int StorVscOnIORequest(struct hv_device *Device,
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struct hv_storvsc_request *Request);
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static int StorVscOnHostReset(struct hv_device *Device);
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static void StorVscOnCleanup(struct hv_driver *Device);
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static void StorVscOnChannelCallback(void *Context);
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static void StorVscOnIOCompletion(struct hv_device *Device,
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struct vstor_packet *VStorPacket,
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struct storvsc_request_extension *RequestExt);
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static void StorVscOnReceive(struct hv_device *Device,
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struct vstor_packet *VStorPacket,
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struct storvsc_request_extension *RequestExt);
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static int StorVscConnectToVsp(struct hv_device *Device);
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static inline struct storvsc_device *AllocStorDevice(struct hv_device *Device)
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static inline struct storvsc_device *AllocStorDevice(struct hv_device *Device)
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{
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{
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struct storvsc_device *storDevice;
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struct storvsc_device *storDevice;
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@ -189,116 +174,6 @@ static inline struct storvsc_device *FinalReleaseStorDevice(
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return storDevice;
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return storDevice;
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}
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}
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/**
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* StorVscInitialize - Main entry point
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*/
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int StorVscInitialize(struct hv_driver *Driver)
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{
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struct storvsc_driver_object *storDriver;
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DPRINT_ENTER(STORVSC);
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storDriver = (struct storvsc_driver_object *)Driver;
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DPRINT_DBG(STORVSC, "sizeof(STORVSC_REQUEST)=%zd "
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"sizeof(struct storvsc_request_extension)=%zd "
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"sizeof(struct vstor_packet)=%zd, "
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"sizeof(struct vmscsi_request)=%zd",
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sizeof(struct hv_storvsc_request),
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sizeof(struct storvsc_request_extension),
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sizeof(struct vstor_packet),
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sizeof(struct vmscsi_request));
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/* Make sure we are at least 2 pages since 1 page is used for control */
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ASSERT(storDriver->RingBufferSize >= (PAGE_SIZE << 1));
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Driver->name = gDriverName;
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memcpy(&Driver->deviceType, &gStorVscDeviceType,
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sizeof(struct hv_guid));
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storDriver->RequestExtSize = sizeof(struct storvsc_request_extension);
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/*
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* Divide the ring buffer data size (which is 1 page less
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* than the ring buffer size since that page is reserved for
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* the ring buffer indices) by the max request size (which is
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* VMBUS_CHANNEL_PACKET_MULITPAGE_BUFFER + struct vstor_packet + u64)
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*/
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storDriver->MaxOutstandingRequestsPerChannel =
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((storDriver->RingBufferSize - PAGE_SIZE) /
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ALIGN_UP(MAX_MULTIPAGE_BUFFER_PACKET +
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sizeof(struct vstor_packet) + sizeof(u64),
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sizeof(u64)));
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DPRINT_INFO(STORVSC, "max io %u, currently %u\n",
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storDriver->MaxOutstandingRequestsPerChannel,
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STORVSC_MAX_IO_REQUESTS);
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/* Setup the dispatch table */
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storDriver->Base.OnDeviceAdd = StorVscOnDeviceAdd;
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storDriver->Base.OnDeviceRemove = StorVscOnDeviceRemove;
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storDriver->Base.OnCleanup = StorVscOnCleanup;
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storDriver->OnIORequest = StorVscOnIORequest;
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storDriver->OnHostReset = StorVscOnHostReset;
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DPRINT_EXIT(STORVSC);
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return 0;
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}
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/**
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* StorVscOnDeviceAdd - Callback when the device belonging to this driver is added
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*/
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static int StorVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo)
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{
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struct storvsc_device *storDevice;
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/* struct vmstorage_channel_properties *props; */
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struct storvsc_device_info *deviceInfo;
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int ret = 0;
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DPRINT_ENTER(STORVSC);
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deviceInfo = (struct storvsc_device_info *)AdditionalInfo;
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storDevice = AllocStorDevice(Device);
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if (!storDevice) {
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ret = -1;
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goto Cleanup;
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}
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/* Save the channel properties to our storvsc channel */
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/* props = (struct vmstorage_channel_properties *)
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* channel->offerMsg.Offer.u.Standard.UserDefined; */
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/* FIXME: */
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/*
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* If we support more than 1 scsi channel, we need to set the
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* port number here to the scsi channel but how do we get the
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* scsi channel prior to the bus scan
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*/
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/* storChannel->PortNumber = 0;
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storChannel->PathId = props->PathId;
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storChannel->TargetId = props->TargetId; */
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storDevice->PortNumber = deviceInfo->PortNumber;
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/* Send it back up */
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ret = StorVscConnectToVsp(Device);
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/* deviceInfo->PortNumber = storDevice->PortNumber; */
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deviceInfo->PathId = storDevice->PathId;
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deviceInfo->TargetId = storDevice->TargetId;
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DPRINT_DBG(STORVSC, "assigned port %u, path %u target %u\n",
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storDevice->PortNumber, storDevice->PathId,
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storDevice->TargetId);
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Cleanup:
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DPRINT_EXIT(STORVSC);
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return ret;
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}
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static int StorVscChannelInit(struct hv_device *Device)
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static int StorVscChannelInit(struct hv_device *Device)
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{
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{
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struct storvsc_device *storDevice;
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struct storvsc_device *storDevice;
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@ -469,6 +344,163 @@ Cleanup:
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return ret;
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return ret;
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}
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}
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static void StorVscOnIOCompletion(struct hv_device *Device,
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struct vstor_packet *VStorPacket,
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struct storvsc_request_extension *RequestExt)
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{
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struct hv_storvsc_request *request;
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struct storvsc_device *storDevice;
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DPRINT_ENTER(STORVSC);
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storDevice = MustGetStorDevice(Device);
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if (!storDevice) {
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DPRINT_ERR(STORVSC, "unable to get stor device..."
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"device being destroyed?");
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DPRINT_EXIT(STORVSC);
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return;
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}
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DPRINT_DBG(STORVSC, "IO_COMPLETE_OPERATION - request extension %p "
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"completed bytes xfer %u", RequestExt,
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VStorPacket->VmSrb.DataTransferLength);
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ASSERT(RequestExt != NULL);
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ASSERT(RequestExt->Request != NULL);
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request = RequestExt->Request;
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ASSERT(request->OnIOCompletion != NULL);
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/* Copy over the status...etc */
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request->Status = VStorPacket->VmSrb.ScsiStatus;
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if (request->Status != 0 || VStorPacket->VmSrb.SrbStatus != 1) {
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DPRINT_WARN(STORVSC,
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"cmd 0x%x scsi status 0x%x srb status 0x%x\n",
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request->Cdb[0], VStorPacket->VmSrb.ScsiStatus,
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VStorPacket->VmSrb.SrbStatus);
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}
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if ((request->Status & 0xFF) == 0x02) {
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/* CHECK_CONDITION */
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if (VStorPacket->VmSrb.SrbStatus & 0x80) {
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/* autosense data available */
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DPRINT_WARN(STORVSC, "storvsc pkt %p autosense data "
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"valid - len %d\n", RequestExt,
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VStorPacket->VmSrb.SenseInfoLength);
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ASSERT(VStorPacket->VmSrb.SenseInfoLength <=
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request->SenseBufferSize);
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memcpy(request->SenseBuffer,
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VStorPacket->VmSrb.SenseData,
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VStorPacket->VmSrb.SenseInfoLength);
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request->SenseBufferSize =
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VStorPacket->VmSrb.SenseInfoLength;
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}
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}
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/* TODO: */
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request->BytesXfer = VStorPacket->VmSrb.DataTransferLength;
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request->OnIOCompletion(request);
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atomic_dec(&storDevice->NumOutstandingRequests);
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PutStorDevice(Device);
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DPRINT_EXIT(STORVSC);
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}
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static void StorVscOnReceive(struct hv_device *Device,
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struct vstor_packet *VStorPacket,
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struct storvsc_request_extension *RequestExt)
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{
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switch (VStorPacket->Operation) {
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case VStorOperationCompleteIo:
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DPRINT_DBG(STORVSC, "IO_COMPLETE_OPERATION");
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StorVscOnIOCompletion(Device, VStorPacket, RequestExt);
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break;
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case VStorOperationRemoveDevice:
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DPRINT_INFO(STORVSC, "REMOVE_DEVICE_OPERATION");
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/* TODO: */
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break;
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default:
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DPRINT_INFO(STORVSC, "Unknown operation received - %d",
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VStorPacket->Operation);
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break;
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}
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}
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static void StorVscOnChannelCallback(void *context)
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{
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struct hv_device *device = (struct hv_device *)context;
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struct storvsc_device *storDevice;
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u32 bytesRecvd;
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u64 requestId;
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unsigned char packet[ALIGN_UP(sizeof(struct vstor_packet), 8)];
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struct storvsc_request_extension *request;
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int ret;
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DPRINT_ENTER(STORVSC);
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ASSERT(device);
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storDevice = MustGetStorDevice(device);
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if (!storDevice) {
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DPRINT_ERR(STORVSC, "unable to get stor device..."
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"device being destroyed?");
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DPRINT_EXIT(STORVSC);
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return;
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}
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do {
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ret = device->Driver->VmbusChannelInterface.RecvPacket(device,
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packet,
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ALIGN_UP(sizeof(struct vstor_packet), 8),
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&bytesRecvd, &requestId);
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if (ret == 0 && bytesRecvd > 0) {
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DPRINT_DBG(STORVSC, "receive %d bytes - tid %llx",
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bytesRecvd, requestId);
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/* ASSERT(bytesRecvd == sizeof(struct vstor_packet)); */
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request = (struct storvsc_request_extension *)
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(unsigned long)requestId;
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ASSERT(request);
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/* if (vstorPacket.Flags & SYNTHETIC_FLAG) */
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if ((request == &storDevice->InitRequest) ||
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(request == &storDevice->ResetRequest)) {
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/* DPRINT_INFO(STORVSC,
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* "reset completion - operation "
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* "%u status %u",
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* vstorPacket.Operation,
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* vstorPacket.Status); */
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memcpy(&request->VStorPacket, packet,
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sizeof(struct vstor_packet));
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osd_WaitEventSet(request->WaitEvent);
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} else {
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StorVscOnReceive(device,
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(struct vstor_packet *)packet,
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request);
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}
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} else {
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/* DPRINT_DBG(STORVSC, "nothing else to read..."); */
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break;
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}
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} while (1);
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PutStorDevice(device);
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DPRINT_EXIT(STORVSC);
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return;
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}
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static int StorVscConnectToVsp(struct hv_device *Device)
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static int StorVscConnectToVsp(struct hv_device *Device)
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{
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{
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struct vmstorage_channel_properties props;
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struct vmstorage_channel_properties props;
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@ -500,6 +532,57 @@ static int StorVscConnectToVsp(struct hv_device *Device)
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return ret;
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return ret;
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}
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}
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/**
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* StorVscOnDeviceAdd - Callback when the device belonging to this driver is added
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*/
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static int StorVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo)
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{
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struct storvsc_device *storDevice;
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/* struct vmstorage_channel_properties *props; */
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struct storvsc_device_info *deviceInfo;
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int ret = 0;
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DPRINT_ENTER(STORVSC);
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deviceInfo = (struct storvsc_device_info *)AdditionalInfo;
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storDevice = AllocStorDevice(Device);
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if (!storDevice) {
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ret = -1;
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goto Cleanup;
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}
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/* Save the channel properties to our storvsc channel */
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/* props = (struct vmstorage_channel_properties *)
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* channel->offerMsg.Offer.u.Standard.UserDefined; */
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/* FIXME: */
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/*
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* If we support more than 1 scsi channel, we need to set the
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* port number here to the scsi channel but how do we get the
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* scsi channel prior to the bus scan
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*/
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/* storChannel->PortNumber = 0;
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storChannel->PathId = props->PathId;
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storChannel->TargetId = props->TargetId; */
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storDevice->PortNumber = deviceInfo->PortNumber;
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/* Send it back up */
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ret = StorVscConnectToVsp(Device);
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/* deviceInfo->PortNumber = storDevice->PortNumber; */
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deviceInfo->PathId = storDevice->PathId;
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deviceInfo->TargetId = storDevice->TargetId;
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DPRINT_DBG(STORVSC, "assigned port %u, path %u target %u\n",
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storDevice->PortNumber, storDevice->PathId,
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storDevice->TargetId);
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Cleanup:
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DPRINT_EXIT(STORVSC);
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return ret;
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}
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/**
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/**
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* StorVscOnDeviceRemove - Callback when the our device is being removed
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* StorVscOnDeviceRemove - Callback when the our device is being removed
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@ -708,160 +791,60 @@ static void StorVscOnCleanup(struct hv_driver *Driver)
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DPRINT_EXIT(STORVSC);
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DPRINT_EXIT(STORVSC);
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}
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}
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static void StorVscOnIOCompletion(struct hv_device *Device,
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/**
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struct vstor_packet *VStorPacket,
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* StorVscInitialize - Main entry point
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struct storvsc_request_extension *RequestExt)
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*/
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int StorVscInitialize(struct hv_driver *Driver)
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{
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{
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struct hv_storvsc_request *request;
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struct storvsc_driver_object *storDriver;
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struct storvsc_device *storDevice;
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||||||
|
|
||||||
DPRINT_ENTER(STORVSC);
|
DPRINT_ENTER(STORVSC);
|
||||||
|
|
||||||
storDevice = MustGetStorDevice(Device);
|
storDriver = (struct storvsc_driver_object *)Driver;
|
||||||
if (!storDevice) {
|
|
||||||
DPRINT_ERR(STORVSC, "unable to get stor device..."
|
|
||||||
"device being destroyed?");
|
|
||||||
DPRINT_EXIT(STORVSC);
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
DPRINT_DBG(STORVSC, "IO_COMPLETE_OPERATION - request extension %p "
|
DPRINT_DBG(STORVSC, "sizeof(STORVSC_REQUEST)=%zd "
|
||||||
"completed bytes xfer %u", RequestExt,
|
"sizeof(struct storvsc_request_extension)=%zd "
|
||||||
VStorPacket->VmSrb.DataTransferLength);
|
"sizeof(struct vstor_packet)=%zd, "
|
||||||
|
"sizeof(struct vmscsi_request)=%zd",
|
||||||
|
sizeof(struct hv_storvsc_request),
|
||||||
|
sizeof(struct storvsc_request_extension),
|
||||||
|
sizeof(struct vstor_packet),
|
||||||
|
sizeof(struct vmscsi_request));
|
||||||
|
|
||||||
ASSERT(RequestExt != NULL);
|
/* Make sure we are at least 2 pages since 1 page is used for control */
|
||||||
ASSERT(RequestExt->Request != NULL);
|
ASSERT(storDriver->RingBufferSize >= (PAGE_SIZE << 1));
|
||||||
|
|
||||||
request = RequestExt->Request;
|
Driver->name = gDriverName;
|
||||||
|
memcpy(&Driver->deviceType, &gStorVscDeviceType,
|
||||||
|
sizeof(struct hv_guid));
|
||||||
|
|
||||||
ASSERT(request->OnIOCompletion != NULL);
|
storDriver->RequestExtSize = sizeof(struct storvsc_request_extension);
|
||||||
|
|
||||||
/* Copy over the status...etc */
|
/*
|
||||||
request->Status = VStorPacket->VmSrb.ScsiStatus;
|
* Divide the ring buffer data size (which is 1 page less
|
||||||
|
* than the ring buffer size since that page is reserved for
|
||||||
|
* the ring buffer indices) by the max request size (which is
|
||||||
|
* VMBUS_CHANNEL_PACKET_MULITPAGE_BUFFER + struct vstor_packet + u64)
|
||||||
|
*/
|
||||||
|
storDriver->MaxOutstandingRequestsPerChannel =
|
||||||
|
((storDriver->RingBufferSize - PAGE_SIZE) /
|
||||||
|
ALIGN_UP(MAX_MULTIPAGE_BUFFER_PACKET +
|
||||||
|
sizeof(struct vstor_packet) + sizeof(u64),
|
||||||
|
sizeof(u64)));
|
||||||
|
|
||||||
if (request->Status != 0 || VStorPacket->VmSrb.SrbStatus != 1) {
|
DPRINT_INFO(STORVSC, "max io %u, currently %u\n",
|
||||||
DPRINT_WARN(STORVSC,
|
storDriver->MaxOutstandingRequestsPerChannel,
|
||||||
"cmd 0x%x scsi status 0x%x srb status 0x%x\n",
|
STORVSC_MAX_IO_REQUESTS);
|
||||||
request->Cdb[0], VStorPacket->VmSrb.ScsiStatus,
|
|
||||||
VStorPacket->VmSrb.SrbStatus);
|
|
||||||
}
|
|
||||||
|
|
||||||
if ((request->Status & 0xFF) == 0x02) {
|
/* Setup the dispatch table */
|
||||||
/* CHECK_CONDITION */
|
storDriver->Base.OnDeviceAdd = StorVscOnDeviceAdd;
|
||||||
if (VStorPacket->VmSrb.SrbStatus & 0x80) {
|
storDriver->Base.OnDeviceRemove = StorVscOnDeviceRemove;
|
||||||
/* autosense data available */
|
storDriver->Base.OnCleanup = StorVscOnCleanup;
|
||||||
DPRINT_WARN(STORVSC, "storvsc pkt %p autosense data "
|
|
||||||
"valid - len %d\n", RequestExt,
|
|
||||||
VStorPacket->VmSrb.SenseInfoLength);
|
|
||||||
|
|
||||||
ASSERT(VStorPacket->VmSrb.SenseInfoLength <=
|
storDriver->OnIORequest = StorVscOnIORequest;
|
||||||
request->SenseBufferSize);
|
storDriver->OnHostReset = StorVscOnHostReset;
|
||||||
memcpy(request->SenseBuffer,
|
|
||||||
VStorPacket->VmSrb.SenseData,
|
|
||||||
VStorPacket->VmSrb.SenseInfoLength);
|
|
||||||
|
|
||||||
request->SenseBufferSize =
|
|
||||||
VStorPacket->VmSrb.SenseInfoLength;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/* TODO: */
|
|
||||||
request->BytesXfer = VStorPacket->VmSrb.DataTransferLength;
|
|
||||||
|
|
||||||
request->OnIOCompletion(request);
|
|
||||||
|
|
||||||
atomic_dec(&storDevice->NumOutstandingRequests);
|
|
||||||
|
|
||||||
PutStorDevice(Device);
|
|
||||||
|
|
||||||
DPRINT_EXIT(STORVSC);
|
DPRINT_EXIT(STORVSC);
|
||||||
}
|
|
||||||
|
return 0;
|
||||||
|
|
||||||
static void StorVscOnReceive(struct hv_device *Device,
|
|
||||||
struct vstor_packet *VStorPacket,
|
|
||||||
struct storvsc_request_extension *RequestExt)
|
|
||||||
{
|
|
||||||
switch (VStorPacket->Operation) {
|
|
||||||
case VStorOperationCompleteIo:
|
|
||||||
DPRINT_DBG(STORVSC, "IO_COMPLETE_OPERATION");
|
|
||||||
StorVscOnIOCompletion(Device, VStorPacket, RequestExt);
|
|
||||||
break;
|
|
||||||
case VStorOperationRemoveDevice:
|
|
||||||
DPRINT_INFO(STORVSC, "REMOVE_DEVICE_OPERATION");
|
|
||||||
/* TODO: */
|
|
||||||
break;
|
|
||||||
|
|
||||||
default:
|
|
||||||
DPRINT_INFO(STORVSC, "Unknown operation received - %d",
|
|
||||||
VStorPacket->Operation);
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
static void StorVscOnChannelCallback(void *context)
|
|
||||||
{
|
|
||||||
struct hv_device *device = (struct hv_device *)context;
|
|
||||||
struct storvsc_device *storDevice;
|
|
||||||
u32 bytesRecvd;
|
|
||||||
u64 requestId;
|
|
||||||
unsigned char packet[ALIGN_UP(sizeof(struct vstor_packet), 8)];
|
|
||||||
struct storvsc_request_extension *request;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
DPRINT_ENTER(STORVSC);
|
|
||||||
|
|
||||||
ASSERT(device);
|
|
||||||
|
|
||||||
storDevice = MustGetStorDevice(device);
|
|
||||||
if (!storDevice) {
|
|
||||||
DPRINT_ERR(STORVSC, "unable to get stor device..."
|
|
||||||
"device being destroyed?");
|
|
||||||
DPRINT_EXIT(STORVSC);
|
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|
||||||
do {
|
|
||||||
ret = device->Driver->VmbusChannelInterface.RecvPacket(device,
|
|
||||||
packet,
|
|
||||||
ALIGN_UP(sizeof(struct vstor_packet), 8),
|
|
||||||
&bytesRecvd, &requestId);
|
|
||||||
if (ret == 0 && bytesRecvd > 0) {
|
|
||||||
DPRINT_DBG(STORVSC, "receive %d bytes - tid %llx",
|
|
||||||
bytesRecvd, requestId);
|
|
||||||
|
|
||||||
/* ASSERT(bytesRecvd == sizeof(struct vstor_packet)); */
|
|
||||||
|
|
||||||
request = (struct storvsc_request_extension *)
|
|
||||||
(unsigned long)requestId;
|
|
||||||
ASSERT(request);
|
|
||||||
|
|
||||||
/* if (vstorPacket.Flags & SYNTHETIC_FLAG) */
|
|
||||||
if ((request == &storDevice->InitRequest) ||
|
|
||||||
(request == &storDevice->ResetRequest)) {
|
|
||||||
/* DPRINT_INFO(STORVSC,
|
|
||||||
* "reset completion - operation "
|
|
||||||
* "%u status %u",
|
|
||||||
* vstorPacket.Operation,
|
|
||||||
* vstorPacket.Status); */
|
|
||||||
|
|
||||||
memcpy(&request->VStorPacket, packet,
|
|
||||||
sizeof(struct vstor_packet));
|
|
||||||
|
|
||||||
osd_WaitEventSet(request->WaitEvent);
|
|
||||||
} else {
|
|
||||||
StorVscOnReceive(device,
|
|
||||||
(struct vstor_packet *)packet,
|
|
||||||
request);
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
/* DPRINT_DBG(STORVSC, "nothing else to read..."); */
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
} while (1);
|
|
||||||
|
|
||||||
PutStorDevice(device);
|
|
||||||
|
|
||||||
DPRINT_EXIT(STORVSC);
|
|
||||||
return;
|
|
||||||
}
|
}
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue