summaryrefslogtreecommitdiffstats
path: root/qemu/hw/scsi/mptsas.c
diff options
context:
space:
mode:
Diffstat (limited to 'qemu/hw/scsi/mptsas.c')
-rw-r--r--qemu/hw/scsi/mptsas.c1442
1 files changed, 0 insertions, 1442 deletions
diff --git a/qemu/hw/scsi/mptsas.c b/qemu/hw/scsi/mptsas.c
deleted file mode 100644
index 499c1465a..000000000
--- a/qemu/hw/scsi/mptsas.c
+++ /dev/null
@@ -1,1442 +0,0 @@
-/*
- * 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 <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-#include "hw/hw.h"
-#include "hw/pci/pci.h"
-#include "sysemu/dma.h"
-#include "sysemu/block-backend.h"
-#include "hw/pci/msi.h"
-#include "qemu/iov.h"
-#include "hw/scsi/scsi.h"
-#include "block/scsi.h"
-#include "trace.h"
-
-#include "mptsas.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 (s->msi_in_use && 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_new(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, &notifier->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, &notifier->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(&s->bus.qbus);
- 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;
-
- if (s->state != MPI_IOC_STATE_OPERATIONAL) {
- mptsas_set_fault(s, MPI_IOCSTATUS_INVALID_STATE);
- return;
- }
-
- /* 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;
-
- 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(&s->bus.qbus);
- 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.
- * When we do, we might be able to re-enable NDEBUG below.
- */
-#ifdef NDEBUG
-#error building with NDEBUG is not supported
-#endif
- 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_init(PCIDevice *dev, Error **errp)
-{
- DeviceState *d = DEVICE(dev);
- MPTSASState *s = MPT_SAS(dev);
-
- dev->config[PCI_LATENCY_TIMER] = 0;
- dev->config[PCI_INTERRUPT_PIN] = 0x01;
-
- 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);
-
- if (s->msi_available &&
- msi_init(dev, 0, 1, true, false) >= 0) {
- s->msi_in_use = true;
- }
-
- 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_bus_num(dev->bus) << 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);
- if (!d->hotplugged) {
- scsi_bus_legacy_handle_cmdline(&s->bus, errp);
- }
-}
-
-static void mptsas_scsi_uninit(PCIDevice *dev)
-{
- MPTSASState *s = MPT_SAS(dev);
-
- qemu_bh_delete(s->request_bh);
- if (s->msi_in_use) {
- 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_BIT("msi", MPTSASState, msi_available, 0, true),
- 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_init;
- 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";
-}
-
-static const TypeInfo mptsas_info = {
- .name = TYPE_MPTSAS1068,
- .parent = TYPE_PCI_DEVICE,
- .instance_size = sizeof(MPTSASState),
- .class_init = mptsas1068_class_init,
-};
-
-static void mptsas_register_types(void)
-{
- type_register(&mptsas_info);
-}
-
-type_init(mptsas_register_types)