/* * QEMU LSI SAS1068 Host Bus Adapter emulation * Based on the QEMU Megaraid emulator * * Copyright (c) 2009-2012 Hannes Reinecke, SUSE Labs * Copyright (c) 2012 Verizon, Inc. * Copyright (c) 2016 Red Hat, Inc. * * Authors: Don Slutz, Paolo Bonzini * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see . */ #include "qemu/osdep.h" #include "hw/pci/pci.h" #include "sysemu/dma.h" #include "hw/pci/msi.h" #include "qemu/iov.h" #include "qemu/main-loop.h" #include "qemu/module.h" #include "hw/scsi/scsi.h" #include "scsi/constants.h" #include "trace.h" #include "qapi/error.h" #include "mptsas.h" #include "migration/qemu-file-types.h" #include "migration/vmstate.h" #include "mpi.h" #define NAA_LOCALLY_ASSIGNED_ID 0x3ULL #define IEEE_COMPANY_LOCALLY_ASSIGNED 0x525400 #define TYPE_MPTSAS1068 "mptsas1068" #define MPT_SAS(obj) \ OBJECT_CHECK(MPTSASState, (obj), TYPE_MPTSAS1068) #define MPTSAS1068_PRODUCT_ID \ (MPI_FW_HEADER_PID_FAMILY_1068_SAS | \ MPI_FW_HEADER_PID_PROD_INITIATOR_SCSI | \ MPI_FW_HEADER_PID_TYPE_SAS) struct MPTSASRequest { MPIMsgSCSIIORequest scsi_io; SCSIRequest *sreq; QEMUSGList qsg; MPTSASState *dev; QTAILQ_ENTRY(MPTSASRequest) next; }; static void mptsas_update_interrupt(MPTSASState *s) { PCIDevice *pci = (PCIDevice *) s; uint32_t state = s->intr_status & ~(s->intr_mask | MPI_HIS_IOP_DOORBELL_STATUS); if (msi_enabled(pci)) { if (state) { trace_mptsas_irq_msi(s); msi_notify(pci, 0); } } trace_mptsas_irq_intx(s, !!state); pci_set_irq(pci, !!state); } static void mptsas_set_fault(MPTSASState *s, uint32_t code) { if ((s->state & MPI_IOC_STATE_FAULT) == 0) { s->state = MPI_IOC_STATE_FAULT | code; } } #define MPTSAS_FIFO_INVALID(s, name) \ ((s)->name##_head > ARRAY_SIZE((s)->name) || \ (s)->name##_tail > ARRAY_SIZE((s)->name)) #define MPTSAS_FIFO_EMPTY(s, name) \ ((s)->name##_head == (s)->name##_tail) #define MPTSAS_FIFO_FULL(s, name) \ ((s)->name##_head == ((s)->name##_tail + 1) % ARRAY_SIZE((s)->name)) #define MPTSAS_FIFO_GET(s, name) ({ \ uint32_t _val = (s)->name[(s)->name##_head++]; \ (s)->name##_head %= ARRAY_SIZE((s)->name); \ _val; \ }) #define MPTSAS_FIFO_PUT(s, name, val) do { \ (s)->name[(s)->name##_tail++] = (val); \ (s)->name##_tail %= ARRAY_SIZE((s)->name); \ } while(0) static void mptsas_post_reply(MPTSASState *s, MPIDefaultReply *reply) { PCIDevice *pci = (PCIDevice *) s; uint32_t addr_lo; if (MPTSAS_FIFO_EMPTY(s, reply_free) || MPTSAS_FIFO_FULL(s, reply_post)) { mptsas_set_fault(s, MPI_IOCSTATUS_INSUFFICIENT_RESOURCES); return; } addr_lo = MPTSAS_FIFO_GET(s, reply_free); pci_dma_write(pci, addr_lo | s->host_mfa_high_addr, reply, MIN(s->reply_frame_size, 4 * reply->MsgLength)); MPTSAS_FIFO_PUT(s, reply_post, MPI_ADDRESS_REPLY_A_BIT | (addr_lo >> 1)); s->intr_status |= MPI_HIS_REPLY_MESSAGE_INTERRUPT; if (s->doorbell_state == DOORBELL_WRITE) { s->doorbell_state = DOORBELL_NONE; s->intr_status |= MPI_HIS_DOORBELL_INTERRUPT; } mptsas_update_interrupt(s); } void mptsas_reply(MPTSASState *s, MPIDefaultReply *reply) { if (s->doorbell_state == DOORBELL_WRITE) { /* The reply is sent out in 16 bit chunks, while the size * in the reply is in 32 bit units. */ s->doorbell_state = DOORBELL_READ; s->doorbell_reply_idx = 0; s->doorbell_reply_size = reply->MsgLength * 2; memcpy(s->doorbell_reply, reply, s->doorbell_reply_size * 2); s->intr_status |= MPI_HIS_DOORBELL_INTERRUPT; mptsas_update_interrupt(s); } else { mptsas_post_reply(s, reply); } } static void mptsas_turbo_reply(MPTSASState *s, uint32_t msgctx) { if (MPTSAS_FIFO_FULL(s, reply_post)) { mptsas_set_fault(s, MPI_IOCSTATUS_INSUFFICIENT_RESOURCES); return; } /* The reply is just the message context ID (bit 31 = clear). */ MPTSAS_FIFO_PUT(s, reply_post, msgctx); s->intr_status |= MPI_HIS_REPLY_MESSAGE_INTERRUPT; mptsas_update_interrupt(s); } #define MPTSAS_MAX_REQUEST_SIZE 52 static const int mpi_request_sizes[] = { [MPI_FUNCTION_SCSI_IO_REQUEST] = sizeof(MPIMsgSCSIIORequest), [MPI_FUNCTION_SCSI_TASK_MGMT] = sizeof(MPIMsgSCSITaskMgmt), [MPI_FUNCTION_IOC_INIT] = sizeof(MPIMsgIOCInit), [MPI_FUNCTION_IOC_FACTS] = sizeof(MPIMsgIOCFacts), [MPI_FUNCTION_CONFIG] = sizeof(MPIMsgConfig), [MPI_FUNCTION_PORT_FACTS] = sizeof(MPIMsgPortFacts), [MPI_FUNCTION_PORT_ENABLE] = sizeof(MPIMsgPortEnable), [MPI_FUNCTION_EVENT_NOTIFICATION] = sizeof(MPIMsgEventNotify), }; static dma_addr_t mptsas_ld_sg_base(MPTSASState *s, uint32_t flags_and_length, dma_addr_t *sgaddr) { PCIDevice *pci = (PCIDevice *) s; dma_addr_t addr; if (flags_and_length & MPI_SGE_FLAGS_64_BIT_ADDRESSING) { addr = ldq_le_pci_dma(pci, *sgaddr + 4); *sgaddr += 12; } else { addr = ldl_le_pci_dma(pci, *sgaddr + 4); *sgaddr += 8; } return addr; } static int mptsas_build_sgl(MPTSASState *s, MPTSASRequest *req, hwaddr addr) { PCIDevice *pci = (PCIDevice *) s; hwaddr next_chain_addr; uint32_t left; hwaddr sgaddr; uint32_t chain_offset; chain_offset = req->scsi_io.ChainOffset; next_chain_addr = addr + chain_offset * sizeof(uint32_t); sgaddr = addr + sizeof(MPIMsgSCSIIORequest); pci_dma_sglist_init(&req->qsg, pci, 4); left = req->scsi_io.DataLength; for(;;) { dma_addr_t addr, len; uint32_t flags_and_length; flags_and_length = ldl_le_pci_dma(pci, sgaddr); len = flags_and_length & MPI_SGE_LENGTH_MASK; if ((flags_and_length & MPI_SGE_FLAGS_ELEMENT_TYPE_MASK) != MPI_SGE_FLAGS_SIMPLE_ELEMENT || (!len && !(flags_and_length & MPI_SGE_FLAGS_END_OF_LIST) && !(flags_and_length & MPI_SGE_FLAGS_END_OF_BUFFER))) { return MPI_IOCSTATUS_INVALID_SGL; } len = MIN(len, left); if (!len) { /* We reached the desired transfer length, ignore extra * elements of the s/g list. */ break; } addr = mptsas_ld_sg_base(s, flags_and_length, &sgaddr); qemu_sglist_add(&req->qsg, addr, len); left -= len; if (flags_and_length & MPI_SGE_FLAGS_END_OF_LIST) { break; } if (flags_and_length & MPI_SGE_FLAGS_LAST_ELEMENT) { if (!chain_offset) { break; } flags_and_length = ldl_le_pci_dma(pci, next_chain_addr); if ((flags_and_length & MPI_SGE_FLAGS_ELEMENT_TYPE_MASK) != MPI_SGE_FLAGS_CHAIN_ELEMENT) { return MPI_IOCSTATUS_INVALID_SGL; } sgaddr = mptsas_ld_sg_base(s, flags_and_length, &next_chain_addr); chain_offset = (flags_and_length & MPI_SGE_CHAIN_OFFSET_MASK) >> MPI_SGE_CHAIN_OFFSET_SHIFT; next_chain_addr = sgaddr + chain_offset * sizeof(uint32_t); } } return 0; } static void mptsas_free_request(MPTSASRequest *req) { MPTSASState *s = req->dev; if (req->sreq != NULL) { req->sreq->hba_private = NULL; scsi_req_unref(req->sreq); req->sreq = NULL; QTAILQ_REMOVE(&s->pending, req, next); } qemu_sglist_destroy(&req->qsg); g_free(req); } static int mptsas_scsi_device_find(MPTSASState *s, int bus, int target, uint8_t *lun, SCSIDevice **sdev) { if (bus != 0) { return MPI_IOCSTATUS_SCSI_INVALID_BUS; } if (target >= s->max_devices) { return MPI_IOCSTATUS_SCSI_INVALID_TARGETID; } *sdev = scsi_device_find(&s->bus, bus, target, lun[1]); if (!*sdev) { return MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE; } return 0; } static int mptsas_process_scsi_io_request(MPTSASState *s, MPIMsgSCSIIORequest *scsi_io, hwaddr addr) { MPTSASRequest *req; MPIMsgSCSIIOReply reply; SCSIDevice *sdev; int status; mptsas_fix_scsi_io_endianness(scsi_io); trace_mptsas_process_scsi_io_request(s, scsi_io->Bus, scsi_io->TargetID, scsi_io->LUN[1], scsi_io->DataLength); status = mptsas_scsi_device_find(s, scsi_io->Bus, scsi_io->TargetID, scsi_io->LUN, &sdev); if (status) { goto bad; } req = g_new0(MPTSASRequest, 1); QTAILQ_INSERT_TAIL(&s->pending, req, next); req->scsi_io = *scsi_io; req->dev = s; status = mptsas_build_sgl(s, req, addr); if (status) { goto free_bad; } if (req->qsg.size < scsi_io->DataLength) { trace_mptsas_sgl_overflow(s, scsi_io->MsgContext, scsi_io->DataLength, req->qsg.size); status = MPI_IOCSTATUS_INVALID_SGL; goto free_bad; } req->sreq = scsi_req_new(sdev, scsi_io->MsgContext, scsi_io->LUN[1], scsi_io->CDB, req); if (req->sreq->cmd.xfer > scsi_io->DataLength) { goto overrun; } switch (scsi_io->Control & MPI_SCSIIO_CONTROL_DATADIRECTION_MASK) { case MPI_SCSIIO_CONTROL_NODATATRANSFER: if (req->sreq->cmd.mode != SCSI_XFER_NONE) { goto overrun; } break; case MPI_SCSIIO_CONTROL_WRITE: if (req->sreq->cmd.mode != SCSI_XFER_TO_DEV) { goto overrun; } break; case MPI_SCSIIO_CONTROL_READ: if (req->sreq->cmd.mode != SCSI_XFER_FROM_DEV) { goto overrun; } break; } if (scsi_req_enqueue(req->sreq)) { scsi_req_continue(req->sreq); } return 0; overrun: trace_mptsas_scsi_overflow(s, scsi_io->MsgContext, req->sreq->cmd.xfer, scsi_io->DataLength); status = MPI_IOCSTATUS_SCSI_DATA_OVERRUN; free_bad: mptsas_free_request(req); bad: memset(&reply, 0, sizeof(reply)); reply.TargetID = scsi_io->TargetID; reply.Bus = scsi_io->Bus; reply.MsgLength = sizeof(reply) / 4; reply.Function = scsi_io->Function; reply.CDBLength = scsi_io->CDBLength; reply.SenseBufferLength = scsi_io->SenseBufferLength; reply.MsgContext = scsi_io->MsgContext; reply.SCSIState = MPI_SCSI_STATE_NO_SCSI_STATUS; reply.IOCStatus = status; mptsas_fix_scsi_io_reply_endianness(&reply); mptsas_reply(s, (MPIDefaultReply *)&reply); return 0; } typedef struct { Notifier notifier; MPTSASState *s; MPIMsgSCSITaskMgmtReply *reply; } MPTSASCancelNotifier; static void mptsas_cancel_notify(Notifier *notifier, void *data) { MPTSASCancelNotifier *n = container_of(notifier, MPTSASCancelNotifier, notifier); /* Abusing IOCLogInfo to store the expected number of requests... */ if (++n->reply->TerminationCount == n->reply->IOCLogInfo) { n->reply->IOCLogInfo = 0; mptsas_fix_scsi_task_mgmt_reply_endianness(n->reply); mptsas_post_reply(n->s, (MPIDefaultReply *)n->reply); g_free(n->reply); } g_free(n); } static void mptsas_process_scsi_task_mgmt(MPTSASState *s, MPIMsgSCSITaskMgmt *req) { MPIMsgSCSITaskMgmtReply reply; MPIMsgSCSITaskMgmtReply *reply_async; int status, count; SCSIDevice *sdev; SCSIRequest *r, *next; BusChild *kid; mptsas_fix_scsi_task_mgmt_endianness(req); QEMU_BUILD_BUG_ON(MPTSAS_MAX_REQUEST_SIZE < sizeof(*req)); QEMU_BUILD_BUG_ON(sizeof(s->doorbell_msg) < sizeof(*req)); QEMU_BUILD_BUG_ON(sizeof(s->doorbell_reply) < sizeof(reply)); memset(&reply, 0, sizeof(reply)); reply.TargetID = req->TargetID; reply.Bus = req->Bus; reply.MsgLength = sizeof(reply) / 4; reply.Function = req->Function; reply.TaskType = req->TaskType; reply.MsgContext = req->MsgContext; switch (req->TaskType) { case MPI_SCSITASKMGMT_TASKTYPE_ABORT_TASK: case MPI_SCSITASKMGMT_TASKTYPE_QUERY_TASK: status = mptsas_scsi_device_find(s, req->Bus, req->TargetID, req->LUN, &sdev); if (status) { reply.IOCStatus = status; goto out; } if (sdev->lun != req->LUN[1]) { reply.ResponseCode = MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN; goto out; } QTAILQ_FOREACH_SAFE(r, &sdev->requests, next, next) { MPTSASRequest *cmd_req = r->hba_private; if (cmd_req && cmd_req->scsi_io.MsgContext == req->TaskMsgContext) { break; } } if (r) { /* * Assert that the request has not been completed yet, we * check for it in the loop above. */ assert(r->hba_private); if (req->TaskType == MPI_SCSITASKMGMT_TASKTYPE_QUERY_TASK) { /* "If the specified command is present in the task set, then * return a service response set to FUNCTION SUCCEEDED". */ reply.ResponseCode = MPI_SCSITASKMGMT_RSP_TM_SUCCEEDED; } else { MPTSASCancelNotifier *notifier; reply_async = g_memdup(&reply, sizeof(MPIMsgSCSITaskMgmtReply)); reply_async->IOCLogInfo = INT_MAX; count = 1; notifier = g_new(MPTSASCancelNotifier, 1); notifier->s = s; notifier->reply = reply_async; notifier->notifier.notify = mptsas_cancel_notify; scsi_req_cancel_async(r, ¬ifier->notifier); goto reply_maybe_async; } } break; case MPI_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET: case MPI_SCSITASKMGMT_TASKTYPE_CLEAR_TASK_SET: status = mptsas_scsi_device_find(s, req->Bus, req->TargetID, req->LUN, &sdev); if (status) { reply.IOCStatus = status; goto out; } if (sdev->lun != req->LUN[1]) { reply.ResponseCode = MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN; goto out; } reply_async = g_memdup(&reply, sizeof(MPIMsgSCSITaskMgmtReply)); reply_async->IOCLogInfo = INT_MAX; count = 0; QTAILQ_FOREACH_SAFE(r, &sdev->requests, next, next) { if (r->hba_private) { MPTSASCancelNotifier *notifier; count++; notifier = g_new(MPTSASCancelNotifier, 1); notifier->s = s; notifier->reply = reply_async; notifier->notifier.notify = mptsas_cancel_notify; scsi_req_cancel_async(r, ¬ifier->notifier); } } reply_maybe_async: if (reply_async->TerminationCount < count) { reply_async->IOCLogInfo = count; return; } g_free(reply_async); reply.TerminationCount = count; break; case MPI_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET: status = mptsas_scsi_device_find(s, req->Bus, req->TargetID, req->LUN, &sdev); if (status) { reply.IOCStatus = status; goto out; } if (sdev->lun != req->LUN[1]) { reply.ResponseCode = MPI_SCSITASKMGMT_RSP_TM_INVALID_LUN; goto out; } qdev_reset_all(&sdev->qdev); break; case MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET: if (req->Bus != 0) { reply.IOCStatus = MPI_IOCSTATUS_SCSI_INVALID_BUS; goto out; } if (req->TargetID > s->max_devices) { reply.IOCStatus = MPI_IOCSTATUS_SCSI_INVALID_TARGETID; goto out; } QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { sdev = SCSI_DEVICE(kid->child); if (sdev->channel == 0 && sdev->id == req->TargetID) { qdev_reset_all(kid->child); } } break; case MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS: qbus_reset_all(BUS(&s->bus)); break; default: reply.ResponseCode = MPI_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED; break; } out: mptsas_fix_scsi_task_mgmt_reply_endianness(&reply); mptsas_post_reply(s, (MPIDefaultReply *)&reply); } static void mptsas_process_ioc_init(MPTSASState *s, MPIMsgIOCInit *req) { MPIMsgIOCInitReply reply; mptsas_fix_ioc_init_endianness(req); QEMU_BUILD_BUG_ON(MPTSAS_MAX_REQUEST_SIZE < sizeof(*req)); QEMU_BUILD_BUG_ON(sizeof(s->doorbell_msg) < sizeof(*req)); QEMU_BUILD_BUG_ON(sizeof(s->doorbell_reply) < sizeof(reply)); s->who_init = req->WhoInit; s->reply_frame_size = req->ReplyFrameSize; s->max_buses = req->MaxBuses; s->max_devices = req->MaxDevices ? req->MaxDevices : 256; s->host_mfa_high_addr = (hwaddr)req->HostMfaHighAddr << 32; s->sense_buffer_high_addr = (hwaddr)req->SenseBufferHighAddr << 32; if (s->state == MPI_IOC_STATE_READY) { s->state = MPI_IOC_STATE_OPERATIONAL; } memset(&reply, 0, sizeof(reply)); reply.WhoInit = s->who_init; reply.MsgLength = sizeof(reply) / 4; reply.Function = req->Function; reply.MaxDevices = s->max_devices; reply.MaxBuses = s->max_buses; reply.MsgContext = req->MsgContext; mptsas_fix_ioc_init_reply_endianness(&reply); mptsas_reply(s, (MPIDefaultReply *)&reply); } static void mptsas_process_ioc_facts(MPTSASState *s, MPIMsgIOCFacts *req) { MPIMsgIOCFactsReply reply; mptsas_fix_ioc_facts_endianness(req); QEMU_BUILD_BUG_ON(MPTSAS_MAX_REQUEST_SIZE < sizeof(*req)); QEMU_BUILD_BUG_ON(sizeof(s->doorbell_msg) < sizeof(*req)); QEMU_BUILD_BUG_ON(sizeof(s->doorbell_reply) < sizeof(reply)); memset(&reply, 0, sizeof(reply)); reply.MsgVersion = 0x0105; reply.MsgLength = sizeof(reply) / 4; reply.Function = req->Function; reply.MsgContext = req->MsgContext; reply.MaxChainDepth = MPTSAS_MAXIMUM_CHAIN_DEPTH; reply.WhoInit = s->who_init; reply.BlockSize = MPTSAS_MAX_REQUEST_SIZE / sizeof(uint32_t); reply.ReplyQueueDepth = ARRAY_SIZE(s->reply_post) - 1; QEMU_BUILD_BUG_ON(ARRAY_SIZE(s->reply_post) != ARRAY_SIZE(s->reply_free)); reply.RequestFrameSize = 128; reply.ProductID = MPTSAS1068_PRODUCT_ID; reply.CurrentHostMfaHighAddr = s->host_mfa_high_addr >> 32; reply.GlobalCredits = ARRAY_SIZE(s->request_post) - 1; reply.NumberOfPorts = MPTSAS_NUM_PORTS; reply.CurrentSenseBufferHighAddr = s->sense_buffer_high_addr >> 32; reply.CurReplyFrameSize = s->reply_frame_size; reply.MaxDevices = s->max_devices; reply.MaxBuses = s->max_buses; reply.FWVersionDev = 0; reply.FWVersionUnit = 0x92; reply.FWVersionMinor = 0x32; reply.FWVersionMajor = 0x1; mptsas_fix_ioc_facts_reply_endianness(&reply); mptsas_reply(s, (MPIDefaultReply *)&reply); } static void mptsas_process_port_facts(MPTSASState *s, MPIMsgPortFacts *req) { MPIMsgPortFactsReply reply; mptsas_fix_port_facts_endianness(req); QEMU_BUILD_BUG_ON(MPTSAS_MAX_REQUEST_SIZE < sizeof(*req)); QEMU_BUILD_BUG_ON(sizeof(s->doorbell_msg) < sizeof(*req)); QEMU_BUILD_BUG_ON(sizeof(s->doorbell_reply) < sizeof(reply)); memset(&reply, 0, sizeof(reply)); reply.MsgLength = sizeof(reply) / 4; reply.Function = req->Function; reply.PortNumber = req->PortNumber; reply.MsgContext = req->MsgContext; if (req->PortNumber < MPTSAS_NUM_PORTS) { reply.PortType = MPI_PORTFACTS_PORTTYPE_SAS; reply.MaxDevices = MPTSAS_NUM_PORTS; reply.PortSCSIID = MPTSAS_NUM_PORTS; reply.ProtocolFlags = MPI_PORTFACTS_PROTOCOL_LOGBUSADDR | MPI_PORTFACTS_PROTOCOL_INITIATOR; } mptsas_fix_port_facts_reply_endianness(&reply); mptsas_reply(s, (MPIDefaultReply *)&reply); } static void mptsas_process_port_enable(MPTSASState *s, MPIMsgPortEnable *req) { MPIMsgPortEnableReply reply; mptsas_fix_port_enable_endianness(req); QEMU_BUILD_BUG_ON(MPTSAS_MAX_REQUEST_SIZE < sizeof(*req)); QEMU_BUILD_BUG_ON(sizeof(s->doorbell_msg) < sizeof(*req)); QEMU_BUILD_BUG_ON(sizeof(s->doorbell_reply) < sizeof(reply)); memset(&reply, 0, sizeof(reply)); reply.MsgLength = sizeof(reply) / 4; reply.PortNumber = req->PortNumber; reply.Function = req->Function; reply.MsgContext = req->MsgContext; mptsas_fix_port_enable_reply_endianness(&reply); mptsas_reply(s, (MPIDefaultReply *)&reply); } static void mptsas_process_event_notification(MPTSASState *s, MPIMsgEventNotify *req) { MPIMsgEventNotifyReply reply; mptsas_fix_event_notification_endianness(req); QEMU_BUILD_BUG_ON(MPTSAS_MAX_REQUEST_SIZE < sizeof(*req)); QEMU_BUILD_BUG_ON(sizeof(s->doorbell_msg) < sizeof(*req)); QEMU_BUILD_BUG_ON(sizeof(s->doorbell_reply) < sizeof(reply)); /* Don't even bother storing whether event notification is enabled, * since it is not accessible. */ memset(&reply, 0, sizeof(reply)); reply.EventDataLength = sizeof(reply.Data) / 4; reply.MsgLength = sizeof(reply) / 4; reply.Function = req->Function; /* This is set because events are sent through the reply FIFOs. */ reply.MsgFlags = MPI_MSGFLAGS_CONTINUATION_REPLY; reply.MsgContext = req->MsgContext; reply.Event = MPI_EVENT_EVENT_CHANGE; reply.Data[0] = !!req->Switch; mptsas_fix_event_notification_reply_endianness(&reply); mptsas_reply(s, (MPIDefaultReply *)&reply); } static void mptsas_process_message(MPTSASState *s, MPIRequestHeader *req) { trace_mptsas_process_message(s, req->Function, req->MsgContext); switch (req->Function) { case MPI_FUNCTION_SCSI_TASK_MGMT: mptsas_process_scsi_task_mgmt(s, (MPIMsgSCSITaskMgmt *)req); break; case MPI_FUNCTION_IOC_INIT: mptsas_process_ioc_init(s, (MPIMsgIOCInit *)req); break; case MPI_FUNCTION_IOC_FACTS: mptsas_process_ioc_facts(s, (MPIMsgIOCFacts *)req); break; case MPI_FUNCTION_PORT_FACTS: mptsas_process_port_facts(s, (MPIMsgPortFacts *)req); break; case MPI_FUNCTION_PORT_ENABLE: mptsas_process_port_enable(s, (MPIMsgPortEnable *)req); break; case MPI_FUNCTION_EVENT_NOTIFICATION: mptsas_process_event_notification(s, (MPIMsgEventNotify *)req); break; case MPI_FUNCTION_CONFIG: mptsas_process_config(s, (MPIMsgConfig *)req); break; default: trace_mptsas_unhandled_cmd(s, req->Function, 0); mptsas_set_fault(s, MPI_IOCSTATUS_INVALID_FUNCTION); break; } } static void mptsas_fetch_request(MPTSASState *s) { PCIDevice *pci = (PCIDevice *) s; char req[MPTSAS_MAX_REQUEST_SIZE]; MPIRequestHeader *hdr = (MPIRequestHeader *)req; hwaddr addr; int size; /* Read the message header from the guest first. */ addr = s->host_mfa_high_addr | MPTSAS_FIFO_GET(s, request_post); pci_dma_read(pci, addr, req, sizeof(*hdr)); if (hdr->Function < ARRAY_SIZE(mpi_request_sizes) && mpi_request_sizes[hdr->Function]) { /* Read the rest of the request based on the type. Do not * reread everything, as that could cause a TOC/TOU mismatch * and leak data from the QEMU stack. */ size = mpi_request_sizes[hdr->Function]; assert(size <= MPTSAS_MAX_REQUEST_SIZE); pci_dma_read(pci, addr + sizeof(*hdr), &req[sizeof(*hdr)], size - sizeof(*hdr)); } if (hdr->Function == MPI_FUNCTION_SCSI_IO_REQUEST) { /* SCSI I/O requests are separate from mptsas_process_message * because they cannot be sent through the doorbell yet. */ mptsas_process_scsi_io_request(s, (MPIMsgSCSIIORequest *)req, addr); } else { mptsas_process_message(s, (MPIRequestHeader *)req); } } static void mptsas_fetch_requests(void *opaque) { MPTSASState *s = opaque; if (s->state != MPI_IOC_STATE_OPERATIONAL) { mptsas_set_fault(s, MPI_IOCSTATUS_INVALID_STATE); return; } while (!MPTSAS_FIFO_EMPTY(s, request_post)) { mptsas_fetch_request(s); } } static void mptsas_soft_reset(MPTSASState *s) { uint32_t save_mask; trace_mptsas_reset(s); /* Temporarily disable interrupts */ save_mask = s->intr_mask; s->intr_mask = MPI_HIM_DIM | MPI_HIM_RIM; mptsas_update_interrupt(s); qbus_reset_all(BUS(&s->bus)); s->intr_status = 0; s->intr_mask = save_mask; s->reply_free_tail = 0; s->reply_free_head = 0; s->reply_post_tail = 0; s->reply_post_head = 0; s->request_post_tail = 0; s->request_post_head = 0; qemu_bh_cancel(s->request_bh); s->state = MPI_IOC_STATE_READY; } static uint32_t mptsas_doorbell_read(MPTSASState *s) { uint32_t ret; ret = (s->who_init << MPI_DOORBELL_WHO_INIT_SHIFT) & MPI_DOORBELL_WHO_INIT_MASK; ret |= s->state; switch (s->doorbell_state) { case DOORBELL_NONE: break; case DOORBELL_WRITE: ret |= MPI_DOORBELL_ACTIVE; break; case DOORBELL_READ: /* Get rid of the IOC fault code. */ ret &= ~MPI_DOORBELL_DATA_MASK; assert(s->intr_status & MPI_HIS_DOORBELL_INTERRUPT); assert(s->doorbell_reply_idx <= s->doorbell_reply_size); ret |= MPI_DOORBELL_ACTIVE; if (s->doorbell_reply_idx < s->doorbell_reply_size) { /* For more information about this endian switch, see the * commit message for commit 36b62ae ("fw_cfg: fix endianness in * fw_cfg_data_mem_read() / _write()", 2015-01-16). */ ret |= le16_to_cpu(s->doorbell_reply[s->doorbell_reply_idx++]); } break; default: abort(); } return ret; } static void mptsas_doorbell_write(MPTSASState *s, uint32_t val) { if (s->doorbell_state == DOORBELL_WRITE) { if (s->doorbell_idx < s->doorbell_cnt) { /* For more information about this endian switch, see the * commit message for commit 36b62ae ("fw_cfg: fix endianness in * fw_cfg_data_mem_read() / _write()", 2015-01-16). */ s->doorbell_msg[s->doorbell_idx++] = cpu_to_le32(val); if (s->doorbell_idx == s->doorbell_cnt) { mptsas_process_message(s, (MPIRequestHeader *)s->doorbell_msg); } } return; } switch ((val & MPI_DOORBELL_FUNCTION_MASK) >> MPI_DOORBELL_FUNCTION_SHIFT) { case MPI_FUNCTION_IOC_MESSAGE_UNIT_RESET: mptsas_soft_reset(s); break; case MPI_FUNCTION_IO_UNIT_RESET: break; case MPI_FUNCTION_HANDSHAKE: s->doorbell_state = DOORBELL_WRITE; s->doorbell_idx = 0; s->doorbell_cnt = (val & MPI_DOORBELL_ADD_DWORDS_MASK) >> MPI_DOORBELL_ADD_DWORDS_SHIFT; s->intr_status |= MPI_HIS_DOORBELL_INTERRUPT; mptsas_update_interrupt(s); break; default: trace_mptsas_unhandled_doorbell_cmd(s, val); break; } } static void mptsas_write_sequence_write(MPTSASState *s, uint32_t val) { /* If the diagnostic register is enabled, any write to this register * will disable it. Otherwise, the guest has to do a magic five-write * sequence. */ if (s->diagnostic & MPI_DIAG_DRWE) { goto disable; } switch (s->diagnostic_idx) { case 0: if ((val & MPI_WRSEQ_KEY_VALUE_MASK) != MPI_WRSEQ_1ST_KEY_VALUE) { goto disable; } break; case 1: if ((val & MPI_WRSEQ_KEY_VALUE_MASK) != MPI_WRSEQ_2ND_KEY_VALUE) { goto disable; } break; case 2: if ((val & MPI_WRSEQ_KEY_VALUE_MASK) != MPI_WRSEQ_3RD_KEY_VALUE) { goto disable; } break; case 3: if ((val & MPI_WRSEQ_KEY_VALUE_MASK) != MPI_WRSEQ_4TH_KEY_VALUE) { goto disable; } break; case 4: if ((val & MPI_WRSEQ_KEY_VALUE_MASK) != MPI_WRSEQ_5TH_KEY_VALUE) { goto disable; } /* Prepare Spaceball One for departure, and change the * combination on my luggage! */ s->diagnostic |= MPI_DIAG_DRWE; break; } s->diagnostic_idx++; return; disable: s->diagnostic &= ~MPI_DIAG_DRWE; s->diagnostic_idx = 0; } static int mptsas_hard_reset(MPTSASState *s) { mptsas_soft_reset(s); s->intr_mask = MPI_HIM_DIM | MPI_HIM_RIM; s->host_mfa_high_addr = 0; s->sense_buffer_high_addr = 0; s->reply_frame_size = 0; s->max_devices = MPTSAS_NUM_PORTS; s->max_buses = 1; return 0; } static void mptsas_interrupt_status_write(MPTSASState *s) { switch (s->doorbell_state) { case DOORBELL_NONE: case DOORBELL_WRITE: s->intr_status &= ~MPI_HIS_DOORBELL_INTERRUPT; break; case DOORBELL_READ: /* The reply can be read continuously, so leave the interrupt up. */ assert(s->intr_status & MPI_HIS_DOORBELL_INTERRUPT); if (s->doorbell_reply_idx == s->doorbell_reply_size) { s->doorbell_state = DOORBELL_NONE; } break; default: abort(); } mptsas_update_interrupt(s); } static uint32_t mptsas_reply_post_read(MPTSASState *s) { uint32_t ret; if (!MPTSAS_FIFO_EMPTY(s, reply_post)) { ret = MPTSAS_FIFO_GET(s, reply_post); } else { ret = -1; s->intr_status &= ~MPI_HIS_REPLY_MESSAGE_INTERRUPT; mptsas_update_interrupt(s); } return ret; } static uint64_t mptsas_mmio_read(void *opaque, hwaddr addr, unsigned size) { MPTSASState *s = opaque; uint32_t ret = 0; switch (addr & ~3) { case MPI_DOORBELL_OFFSET: ret = mptsas_doorbell_read(s); break; case MPI_DIAGNOSTIC_OFFSET: ret = s->diagnostic; break; case MPI_HOST_INTERRUPT_STATUS_OFFSET: ret = s->intr_status; break; case MPI_HOST_INTERRUPT_MASK_OFFSET: ret = s->intr_mask; break; case MPI_REPLY_POST_FIFO_OFFSET: ret = mptsas_reply_post_read(s); break; default: trace_mptsas_mmio_unhandled_read(s, addr); break; } trace_mptsas_mmio_read(s, addr, ret); return ret; } static void mptsas_mmio_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { MPTSASState *s = opaque; trace_mptsas_mmio_write(s, addr, val); switch (addr) { case MPI_DOORBELL_OFFSET: mptsas_doorbell_write(s, val); break; case MPI_WRITE_SEQUENCE_OFFSET: mptsas_write_sequence_write(s, val); break; case MPI_DIAGNOSTIC_OFFSET: if (val & MPI_DIAG_RESET_ADAPTER) { mptsas_hard_reset(s); } break; case MPI_HOST_INTERRUPT_STATUS_OFFSET: mptsas_interrupt_status_write(s); break; case MPI_HOST_INTERRUPT_MASK_OFFSET: s->intr_mask = val & (MPI_HIM_RIM | MPI_HIM_DIM); mptsas_update_interrupt(s); break; case MPI_REQUEST_POST_FIFO_OFFSET: if (MPTSAS_FIFO_FULL(s, request_post)) { mptsas_set_fault(s, MPI_IOCSTATUS_INSUFFICIENT_RESOURCES); } else { MPTSAS_FIFO_PUT(s, request_post, val & ~0x03); qemu_bh_schedule(s->request_bh); } break; case MPI_REPLY_FREE_FIFO_OFFSET: if (MPTSAS_FIFO_FULL(s, reply_free)) { mptsas_set_fault(s, MPI_IOCSTATUS_INSUFFICIENT_RESOURCES); } else { MPTSAS_FIFO_PUT(s, reply_free, val); } break; default: trace_mptsas_mmio_unhandled_write(s, addr, val); break; } } static const MemoryRegionOps mptsas_mmio_ops = { .read = mptsas_mmio_read, .write = mptsas_mmio_write, .endianness = DEVICE_LITTLE_ENDIAN, .impl = { .min_access_size = 4, .max_access_size = 4, } }; static const MemoryRegionOps mptsas_port_ops = { .read = mptsas_mmio_read, .write = mptsas_mmio_write, .endianness = DEVICE_LITTLE_ENDIAN, .impl = { .min_access_size = 4, .max_access_size = 4, } }; static uint64_t mptsas_diag_read(void *opaque, hwaddr addr, unsigned size) { MPTSASState *s = opaque; trace_mptsas_diag_read(s, addr, 0); return 0; } static void mptsas_diag_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { MPTSASState *s = opaque; trace_mptsas_diag_write(s, addr, val); } static const MemoryRegionOps mptsas_diag_ops = { .read = mptsas_diag_read, .write = mptsas_diag_write, .endianness = DEVICE_LITTLE_ENDIAN, .impl = { .min_access_size = 4, .max_access_size = 4, } }; static QEMUSGList *mptsas_get_sg_list(SCSIRequest *sreq) { MPTSASRequest *req = sreq->hba_private; return &req->qsg; } static void mptsas_command_complete(SCSIRequest *sreq, uint32_t status, size_t resid) { MPTSASRequest *req = sreq->hba_private; MPTSASState *s = req->dev; uint8_t sense_buf[SCSI_SENSE_BUF_SIZE]; uint8_t sense_len; hwaddr sense_buffer_addr = req->dev->sense_buffer_high_addr | req->scsi_io.SenseBufferLowAddr; trace_mptsas_command_complete(s, req->scsi_io.MsgContext, status, resid); sense_len = scsi_req_get_sense(sreq, sense_buf, SCSI_SENSE_BUF_SIZE); if (sense_len > 0) { pci_dma_write(PCI_DEVICE(s), sense_buffer_addr, sense_buf, MIN(req->scsi_io.SenseBufferLength, sense_len)); } if (sreq->status != GOOD || resid || req->dev->doorbell_state == DOORBELL_WRITE) { MPIMsgSCSIIOReply reply; memset(&reply, 0, sizeof(reply)); reply.TargetID = req->scsi_io.TargetID; reply.Bus = req->scsi_io.Bus; reply.MsgLength = sizeof(reply) / 4; reply.Function = req->scsi_io.Function; reply.CDBLength = req->scsi_io.CDBLength; reply.SenseBufferLength = req->scsi_io.SenseBufferLength; reply.MsgFlags = req->scsi_io.MsgFlags; reply.MsgContext = req->scsi_io.MsgContext; reply.SCSIStatus = sreq->status; if (sreq->status == GOOD) { reply.TransferCount = req->scsi_io.DataLength - resid; if (resid) { reply.IOCStatus = MPI_IOCSTATUS_SCSI_DATA_UNDERRUN; } } else { reply.SCSIState = MPI_SCSI_STATE_AUTOSENSE_VALID; reply.SenseCount = sense_len; reply.IOCStatus = MPI_IOCSTATUS_SCSI_DATA_UNDERRUN; } mptsas_fix_scsi_io_reply_endianness(&reply); mptsas_post_reply(req->dev, (MPIDefaultReply *)&reply); } else { mptsas_turbo_reply(req->dev, req->scsi_io.MsgContext); } mptsas_free_request(req); } static void mptsas_request_cancelled(SCSIRequest *sreq) { MPTSASRequest *req = sreq->hba_private; MPIMsgSCSIIOReply reply; memset(&reply, 0, sizeof(reply)); reply.TargetID = req->scsi_io.TargetID; reply.Bus = req->scsi_io.Bus; reply.MsgLength = sizeof(reply) / 4; reply.Function = req->scsi_io.Function; reply.CDBLength = req->scsi_io.CDBLength; reply.SenseBufferLength = req->scsi_io.SenseBufferLength; reply.MsgFlags = req->scsi_io.MsgFlags; reply.MsgContext = req->scsi_io.MsgContext; reply.SCSIState = MPI_SCSI_STATE_NO_SCSI_STATUS; reply.IOCStatus = MPI_IOCSTATUS_SCSI_TASK_TERMINATED; mptsas_fix_scsi_io_reply_endianness(&reply); mptsas_post_reply(req->dev, (MPIDefaultReply *)&reply); mptsas_free_request(req); } static void mptsas_save_request(QEMUFile *f, SCSIRequest *sreq) { MPTSASRequest *req = sreq->hba_private; int i; qemu_put_buffer(f, (unsigned char *)&req->scsi_io, sizeof(req->scsi_io)); qemu_put_be32(f, req->qsg.nsg); for (i = 0; i < req->qsg.nsg; i++) { qemu_put_be64(f, req->qsg.sg[i].base); qemu_put_be64(f, req->qsg.sg[i].len); } } static void *mptsas_load_request(QEMUFile *f, SCSIRequest *sreq) { SCSIBus *bus = sreq->bus; MPTSASState *s = container_of(bus, MPTSASState, bus); PCIDevice *pci = PCI_DEVICE(s); MPTSASRequest *req; int i, n; req = g_new(MPTSASRequest, 1); qemu_get_buffer(f, (unsigned char *)&req->scsi_io, sizeof(req->scsi_io)); n = qemu_get_be32(f); /* TODO: add a way for SCSIBusInfo's load_request to fail, * and fail migration instead of asserting here. * This is just one thing (there are probably more) that must be * fixed before we can allow NDEBUG compilation. */ assert(n >= 0); pci_dma_sglist_init(&req->qsg, pci, n); for (i = 0; i < n; i++) { uint64_t base = qemu_get_be64(f); uint64_t len = qemu_get_be64(f); qemu_sglist_add(&req->qsg, base, len); } scsi_req_ref(sreq); req->sreq = sreq; req->dev = s; return req; } static const struct SCSIBusInfo mptsas_scsi_info = { .tcq = true, .max_target = MPTSAS_NUM_PORTS, .max_lun = 1, .get_sg_list = mptsas_get_sg_list, .complete = mptsas_command_complete, .cancel = mptsas_request_cancelled, .save_request = mptsas_save_request, .load_request = mptsas_load_request, }; static void mptsas_scsi_realize(PCIDevice *dev, Error **errp) { MPTSASState *s = MPT_SAS(dev); Error *err = NULL; int ret; dev->config[PCI_LATENCY_TIMER] = 0; dev->config[PCI_INTERRUPT_PIN] = 0x01; if (s->msi != ON_OFF_AUTO_OFF) { ret = msi_init(dev, 0, 1, true, false, &err); /* Any error other than -ENOTSUP(board's MSI support is broken) * is a programming error */ assert(!ret || ret == -ENOTSUP); if (ret && s->msi == ON_OFF_AUTO_ON) { /* Can't satisfy user's explicit msi=on request, fail */ error_append_hint(&err, "You have to use msi=auto (default) or " "msi=off with this machine type.\n"); error_propagate(errp, err); return; } assert(!err || s->msi == ON_OFF_AUTO_AUTO); /* With msi=auto, we fall back to MSI off silently */ error_free(err); /* Only used for migration. */ s->msi_in_use = (ret == 0); } memory_region_init_io(&s->mmio_io, OBJECT(s), &mptsas_mmio_ops, s, "mptsas-mmio", 0x4000); memory_region_init_io(&s->port_io, OBJECT(s), &mptsas_port_ops, s, "mptsas-io", 256); memory_region_init_io(&s->diag_io, OBJECT(s), &mptsas_diag_ops, s, "mptsas-diag", 0x10000); pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->port_io); pci_register_bar(dev, 1, PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_32, &s->mmio_io); pci_register_bar(dev, 2, PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_32, &s->diag_io); if (!s->sas_addr) { s->sas_addr = ((NAA_LOCALLY_ASSIGNED_ID << 24) | IEEE_COMPANY_LOCALLY_ASSIGNED) << 36; s->sas_addr |= (pci_dev_bus_num(dev) << 16); s->sas_addr |= (PCI_SLOT(dev->devfn) << 8); s->sas_addr |= PCI_FUNC(dev->devfn); } s->max_devices = MPTSAS_NUM_PORTS; s->request_bh = qemu_bh_new(mptsas_fetch_requests, s); QTAILQ_INIT(&s->pending); scsi_bus_new(&s->bus, sizeof(s->bus), &dev->qdev, &mptsas_scsi_info, NULL); } static void mptsas_scsi_uninit(PCIDevice *dev) { MPTSASState *s = MPT_SAS(dev); qemu_bh_delete(s->request_bh); msi_uninit(dev); } static void mptsas_reset(DeviceState *dev) { MPTSASState *s = MPT_SAS(dev); mptsas_hard_reset(s); } static int mptsas_post_load(void *opaque, int version_id) { MPTSASState *s = opaque; if (s->doorbell_idx > s->doorbell_cnt || s->doorbell_cnt > ARRAY_SIZE(s->doorbell_msg) || s->doorbell_reply_idx > s->doorbell_reply_size || s->doorbell_reply_size > ARRAY_SIZE(s->doorbell_reply) || MPTSAS_FIFO_INVALID(s, request_post) || MPTSAS_FIFO_INVALID(s, reply_post) || MPTSAS_FIFO_INVALID(s, reply_free) || s->diagnostic_idx > 4) { return -EINVAL; } return 0; } static const VMStateDescription vmstate_mptsas = { .name = "mptsas", .version_id = 0, .minimum_version_id = 0, .minimum_version_id_old = 0, .post_load = mptsas_post_load, .fields = (VMStateField[]) { VMSTATE_PCI_DEVICE(dev, MPTSASState), VMSTATE_BOOL(msi_in_use, MPTSASState), VMSTATE_UINT32(state, MPTSASState), VMSTATE_UINT8(who_init, MPTSASState), VMSTATE_UINT8(doorbell_state, MPTSASState), VMSTATE_UINT32_ARRAY(doorbell_msg, MPTSASState, 256), VMSTATE_INT32(doorbell_idx, MPTSASState), VMSTATE_INT32(doorbell_cnt, MPTSASState), VMSTATE_UINT16_ARRAY(doorbell_reply, MPTSASState, 256), VMSTATE_INT32(doorbell_reply_idx, MPTSASState), VMSTATE_INT32(doorbell_reply_size, MPTSASState), VMSTATE_UINT32(diagnostic, MPTSASState), VMSTATE_UINT8(diagnostic_idx, MPTSASState), VMSTATE_UINT32(intr_status, MPTSASState), VMSTATE_UINT32(intr_mask, MPTSASState), VMSTATE_UINT32_ARRAY(request_post, MPTSASState, MPTSAS_REQUEST_QUEUE_DEPTH + 1), VMSTATE_UINT16(request_post_head, MPTSASState), VMSTATE_UINT16(request_post_tail, MPTSASState), VMSTATE_UINT32_ARRAY(reply_post, MPTSASState, MPTSAS_REPLY_QUEUE_DEPTH + 1), VMSTATE_UINT16(reply_post_head, MPTSASState), VMSTATE_UINT16(reply_post_tail, MPTSASState), VMSTATE_UINT32_ARRAY(reply_free, MPTSASState, MPTSAS_REPLY_QUEUE_DEPTH + 1), VMSTATE_UINT16(reply_free_head, MPTSASState), VMSTATE_UINT16(reply_free_tail, MPTSASState), VMSTATE_UINT16(max_buses, MPTSASState), VMSTATE_UINT16(max_devices, MPTSASState), VMSTATE_UINT16(reply_frame_size, MPTSASState), VMSTATE_UINT64(host_mfa_high_addr, MPTSASState), VMSTATE_UINT64(sense_buffer_high_addr, MPTSASState), VMSTATE_END_OF_LIST() } }; static Property mptsas_properties[] = { DEFINE_PROP_UINT64("sas_address", MPTSASState, sas_addr, 0), /* TODO: test MSI support under Windows */ DEFINE_PROP_ON_OFF_AUTO("msi", MPTSASState, msi, ON_OFF_AUTO_AUTO), DEFINE_PROP_END_OF_LIST(), }; static void mptsas1068_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); PCIDeviceClass *pc = PCI_DEVICE_CLASS(oc); pc->realize = mptsas_scsi_realize; pc->exit = mptsas_scsi_uninit; pc->romfile = 0; pc->vendor_id = PCI_VENDOR_ID_LSI_LOGIC; pc->device_id = PCI_DEVICE_ID_LSI_SAS1068; pc->subsystem_vendor_id = PCI_VENDOR_ID_LSI_LOGIC; pc->subsystem_id = 0x8000; pc->class_id = PCI_CLASS_STORAGE_SCSI; dc->props = mptsas_properties; dc->reset = mptsas_reset; dc->vmsd = &vmstate_mptsas; dc->desc = "LSI SAS 1068"; set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); } static const TypeInfo mptsas_info = { .name = TYPE_MPTSAS1068, .parent = TYPE_PCI_DEVICE, .instance_size = sizeof(MPTSASState), .class_init = mptsas1068_class_init, .interfaces = (InterfaceInfo[]) { { INTERFACE_CONVENTIONAL_PCI_DEVICE }, { }, }, }; static void mptsas_register_types(void) { type_register(&mptsas_info); } type_init(mptsas_register_types)