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qemu/hw/scsi/megasas.c
Juan Quintela d49805aeea savevm: Remove all the unneeded version_minimum_id_old (x86) 
After previous Peter patch, they are redundant.  This way we don't
assign them except when needed.  Once there, there were lots of case
where the ".fields" indentation was wrong:

     .fields = (VMStateField []) {
and
     .fields =      (VMStateField []) {

Change all the combinations to:

     .fields = (VMStateField[]){

The biggest problem (appart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Acked-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-16 04:55:26 +02:00

2286 lines
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/*
* QEMU MegaRAID SAS 8708EM2 Host Bus Adapter emulation
* Based on the linux driver code at drivers/scsi/megaraid
*
* Copyright (c) 2009-2012 Hannes Reinecke, SUSE Labs
*
* 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 "hw/hw.h"
#include "hw/pci/pci.h"
#include "sysemu/dma.h"
#include "hw/pci/msi.h"
#include "hw/pci/msix.h"
#include "qemu/iov.h"
#include "hw/scsi/scsi.h"
#include "block/scsi.h"
#include "trace.h"
#include "mfi.h"
#define MEGASAS_VERSION "1.70"
#define MEGASAS_MAX_FRAMES 2048 /* Firmware limit at 65535 */
#define MEGASAS_DEFAULT_FRAMES 1000 /* Windows requires this */
#define MEGASAS_MAX_SGE 128 /* Firmware limit */
#define MEGASAS_DEFAULT_SGE 80
#define MEGASAS_MAX_SECTORS 0xFFFF /* No real limit */
#define MEGASAS_MAX_ARRAYS 128
#define MEGASAS_HBA_SERIAL "QEMU123456"
#define NAA_LOCALLY_ASSIGNED_ID 0x3ULL
#define IEEE_COMPANY_LOCALLY_ASSIGNED 0x525400
#define MEGASAS_FLAG_USE_JBOD 0
#define MEGASAS_MASK_USE_JBOD (1 << MEGASAS_FLAG_USE_JBOD)
#define MEGASAS_FLAG_USE_MSI 1
#define MEGASAS_MASK_USE_MSI (1 << MEGASAS_FLAG_USE_MSI)
#define MEGASAS_FLAG_USE_MSIX 2
#define MEGASAS_MASK_USE_MSIX (1 << MEGASAS_FLAG_USE_MSIX)
#define MEGASAS_FLAG_USE_QUEUE64 3
#define MEGASAS_MASK_USE_QUEUE64 (1 << MEGASAS_FLAG_USE_QUEUE64)
static const char *mfi_frame_desc[] = {
"MFI init", "LD Read", "LD Write", "LD SCSI", "PD SCSI",
"MFI Doorbell", "MFI Abort", "MFI SMP", "MFI Stop"};
typedef struct MegasasCmd {
uint32_t index;
uint16_t flags;
uint16_t count;
uint64_t context;
hwaddr pa;
hwaddr pa_size;
union mfi_frame *frame;
SCSIRequest *req;
QEMUSGList qsg;
void *iov_buf;
size_t iov_size;
size_t iov_offset;
struct MegasasState *state;
} MegasasCmd;
typedef struct MegasasState {
/*< private >*/
PCIDevice parent_obj;
/*< public >*/
MemoryRegion mmio_io;
MemoryRegion port_io;
MemoryRegion queue_io;
uint32_t frame_hi;
int fw_state;
uint32_t fw_sge;
uint32_t fw_cmds;
uint32_t flags;
int fw_luns;
int intr_mask;
int doorbell;
int busy;
MegasasCmd *event_cmd;
int event_locale;
int event_class;
int event_count;
int shutdown_event;
int boot_event;
uint64_t sas_addr;
char *hba_serial;
uint64_t reply_queue_pa;
void *reply_queue;
int reply_queue_len;
int reply_queue_head;
int reply_queue_tail;
uint64_t consumer_pa;
uint64_t producer_pa;
MegasasCmd frames[MEGASAS_MAX_FRAMES];
SCSIBus bus;
} MegasasState;
#define TYPE_MEGASAS "megasas"
#define MEGASAS(obj) \
OBJECT_CHECK(MegasasState, (obj), TYPE_MEGASAS)
#define MEGASAS_INTR_DISABLED_MASK 0xFFFFFFFF
static bool megasas_intr_enabled(MegasasState *s)
{
if ((s->intr_mask & MEGASAS_INTR_DISABLED_MASK) !=
MEGASAS_INTR_DISABLED_MASK) {
return true;
}
return false;
}
static bool megasas_use_queue64(MegasasState *s)
{
return s->flags & MEGASAS_MASK_USE_QUEUE64;
}
static bool megasas_use_msi(MegasasState *s)
{
return s->flags & MEGASAS_MASK_USE_MSI;
}
static bool megasas_use_msix(MegasasState *s)
{
return s->flags & MEGASAS_MASK_USE_MSIX;
}
static bool megasas_is_jbod(MegasasState *s)
{
return s->flags & MEGASAS_MASK_USE_JBOD;
}
static void megasas_frame_set_cmd_status(unsigned long frame, uint8_t v)
{
stb_phys(&address_space_memory,
frame + offsetof(struct mfi_frame_header, cmd_status), v);
}
static void megasas_frame_set_scsi_status(unsigned long frame, uint8_t v)
{
stb_phys(&address_space_memory,
frame + offsetof(struct mfi_frame_header, scsi_status), v);
}
/*
* Context is considered opaque, but the HBA firmware is running
* in little endian mode. So convert it to little endian, too.
*/
static uint64_t megasas_frame_get_context(unsigned long frame)
{
return ldq_le_phys(&address_space_memory,
frame + offsetof(struct mfi_frame_header, context));
}
static bool megasas_frame_is_ieee_sgl(MegasasCmd *cmd)
{
return cmd->flags & MFI_FRAME_IEEE_SGL;
}
static bool megasas_frame_is_sgl64(MegasasCmd *cmd)
{
return cmd->flags & MFI_FRAME_SGL64;
}
static bool megasas_frame_is_sense64(MegasasCmd *cmd)
{
return cmd->flags & MFI_FRAME_SENSE64;
}
static uint64_t megasas_sgl_get_addr(MegasasCmd *cmd,
union mfi_sgl *sgl)
{
uint64_t addr;
if (megasas_frame_is_ieee_sgl(cmd)) {
addr = le64_to_cpu(sgl->sg_skinny->addr);
} else if (megasas_frame_is_sgl64(cmd)) {
addr = le64_to_cpu(sgl->sg64->addr);
} else {
addr = le32_to_cpu(sgl->sg32->addr);
}
return addr;
}
static uint32_t megasas_sgl_get_len(MegasasCmd *cmd,
union mfi_sgl *sgl)
{
uint32_t len;
if (megasas_frame_is_ieee_sgl(cmd)) {
len = le32_to_cpu(sgl->sg_skinny->len);
} else if (megasas_frame_is_sgl64(cmd)) {
len = le32_to_cpu(sgl->sg64->len);
} else {
len = le32_to_cpu(sgl->sg32->len);
}
return len;
}
static union mfi_sgl *megasas_sgl_next(MegasasCmd *cmd,
union mfi_sgl *sgl)
{
uint8_t *next = (uint8_t *)sgl;
if (megasas_frame_is_ieee_sgl(cmd)) {
next += sizeof(struct mfi_sg_skinny);
} else if (megasas_frame_is_sgl64(cmd)) {
next += sizeof(struct mfi_sg64);
} else {
next += sizeof(struct mfi_sg32);
}
if (next >= (uint8_t *)cmd->frame + cmd->pa_size) {
return NULL;
}
return (union mfi_sgl *)next;
}
static void megasas_soft_reset(MegasasState *s);
static int megasas_map_sgl(MegasasState *s, MegasasCmd *cmd, union mfi_sgl *sgl)
{
int i;
int iov_count = 0;
size_t iov_size = 0;
cmd->flags = le16_to_cpu(cmd->frame->header.flags);
iov_count = cmd->frame->header.sge_count;
if (iov_count > MEGASAS_MAX_SGE) {
trace_megasas_iovec_sgl_overflow(cmd->index, iov_count,
MEGASAS_MAX_SGE);
return iov_count;
}
pci_dma_sglist_init(&cmd->qsg, PCI_DEVICE(s), iov_count);
for (i = 0; i < iov_count; i++) {
dma_addr_t iov_pa, iov_size_p;
if (!sgl) {
trace_megasas_iovec_sgl_underflow(cmd->index, i);
goto unmap;
}
iov_pa = megasas_sgl_get_addr(cmd, sgl);
iov_size_p = megasas_sgl_get_len(cmd, sgl);
if (!iov_pa || !iov_size_p) {
trace_megasas_iovec_sgl_invalid(cmd->index, i,
iov_pa, iov_size_p);
goto unmap;
}
qemu_sglist_add(&cmd->qsg, iov_pa, iov_size_p);
sgl = megasas_sgl_next(cmd, sgl);
iov_size += (size_t)iov_size_p;
}
if (cmd->iov_size > iov_size) {
trace_megasas_iovec_overflow(cmd->index, iov_size, cmd->iov_size);
} else if (cmd->iov_size < iov_size) {
trace_megasas_iovec_underflow(cmd->iov_size, iov_size, cmd->iov_size);
}
cmd->iov_offset = 0;
return 0;
unmap:
qemu_sglist_destroy(&cmd->qsg);
return iov_count - i;
}
static void megasas_unmap_sgl(MegasasCmd *cmd)
{
qemu_sglist_destroy(&cmd->qsg);
cmd->iov_offset = 0;
}
/*
* passthrough sense and io sense are at the same offset
*/
static int megasas_build_sense(MegasasCmd *cmd, uint8_t *sense_ptr,
uint8_t sense_len)
{
uint32_t pa_hi = 0, pa_lo;
hwaddr pa;
if (sense_len > cmd->frame->header.sense_len) {
sense_len = cmd->frame->header.sense_len;
}
if (sense_len) {
pa_lo = le32_to_cpu(cmd->frame->pass.sense_addr_lo);
if (megasas_frame_is_sense64(cmd)) {
pa_hi = le32_to_cpu(cmd->frame->pass.sense_addr_hi);
}
pa = ((uint64_t) pa_hi << 32) | pa_lo;
cpu_physical_memory_write(pa, sense_ptr, sense_len);
cmd->frame->header.sense_len = sense_len;
}
return sense_len;
}
static void megasas_write_sense(MegasasCmd *cmd, SCSISense sense)
{
uint8_t sense_buf[SCSI_SENSE_BUF_SIZE];
uint8_t sense_len = 18;
memset(sense_buf, 0, sense_len);
sense_buf[0] = 0xf0;
sense_buf[2] = sense.key;
sense_buf[7] = 10;
sense_buf[12] = sense.asc;
sense_buf[13] = sense.ascq;
megasas_build_sense(cmd, sense_buf, sense_len);
}
static void megasas_copy_sense(MegasasCmd *cmd)
{
uint8_t sense_buf[SCSI_SENSE_BUF_SIZE];
uint8_t sense_len;
sense_len = scsi_req_get_sense(cmd->req, sense_buf,
SCSI_SENSE_BUF_SIZE);
megasas_build_sense(cmd, sense_buf, sense_len);
}
/*
* Format an INQUIRY CDB
*/
static int megasas_setup_inquiry(uint8_t *cdb, int pg, int len)
{
memset(cdb, 0, 6);
cdb[0] = INQUIRY;
if (pg > 0) {
cdb[1] = 0x1;
cdb[2] = pg;
}
cdb[3] = (len >> 8) & 0xff;
cdb[4] = (len & 0xff);
return len;
}
/*
* Encode lba and len into a READ_16/WRITE_16 CDB
*/
static void megasas_encode_lba(uint8_t *cdb, uint64_t lba,
uint32_t len, bool is_write)
{
memset(cdb, 0x0, 16);
if (is_write) {
cdb[0] = WRITE_16;
} else {
cdb[0] = READ_16;
}
cdb[2] = (lba >> 56) & 0xff;
cdb[3] = (lba >> 48) & 0xff;
cdb[4] = (lba >> 40) & 0xff;
cdb[5] = (lba >> 32) & 0xff;
cdb[6] = (lba >> 24) & 0xff;
cdb[7] = (lba >> 16) & 0xff;
cdb[8] = (lba >> 8) & 0xff;
cdb[9] = (lba) & 0xff;
cdb[10] = (len >> 24) & 0xff;
cdb[11] = (len >> 16) & 0xff;
cdb[12] = (len >> 8) & 0xff;
cdb[13] = (len) & 0xff;
}
/*
* Utility functions
*/
static uint64_t megasas_fw_time(void)
{
struct tm curtime;
uint64_t bcd_time;
qemu_get_timedate(&curtime, 0);
bcd_time = ((uint64_t)curtime.tm_sec & 0xff) << 48 |
((uint64_t)curtime.tm_min & 0xff) << 40 |
((uint64_t)curtime.tm_hour & 0xff) << 32 |
((uint64_t)curtime.tm_mday & 0xff) << 24 |
((uint64_t)curtime.tm_mon & 0xff) << 16 |
((uint64_t)(curtime.tm_year + 1900) & 0xffff);
return bcd_time;
}
/*
* Default disk sata address
* 0x1221 is the magic number as
* present in real hardware,
* so use it here, too.
*/
static uint64_t megasas_get_sata_addr(uint16_t id)
{
uint64_t addr = (0x1221ULL << 48);
return addr & (id << 24);
}
/*
* Frame handling
*/
static int megasas_next_index(MegasasState *s, int index, int limit)
{
index++;
if (index == limit) {
index = 0;
}
return index;
}
static MegasasCmd *megasas_lookup_frame(MegasasState *s,
hwaddr frame)
{
MegasasCmd *cmd = NULL;
int num = 0, index;
index = s->reply_queue_head;
while (num < s->fw_cmds) {
if (s->frames[index].pa && s->frames[index].pa == frame) {
cmd = &s->frames[index];
break;
}
index = megasas_next_index(s, index, s->fw_cmds);
num++;
}
return cmd;
}
static MegasasCmd *megasas_next_frame(MegasasState *s,
hwaddr frame)
{
MegasasCmd *cmd = NULL;
int num = 0, index;
cmd = megasas_lookup_frame(s, frame);
if (cmd) {
trace_megasas_qf_found(cmd->index, cmd->pa);
return cmd;
}
index = s->reply_queue_head;
num = 0;
while (num < s->fw_cmds) {
if (!s->frames[index].pa) {
cmd = &s->frames[index];
break;
}
index = megasas_next_index(s, index, s->fw_cmds);
num++;
}
if (!cmd) {
trace_megasas_qf_failed(frame);
}
trace_megasas_qf_new(index, cmd);
return cmd;
}
static MegasasCmd *megasas_enqueue_frame(MegasasState *s,
hwaddr frame, uint64_t context, int count)
{
MegasasCmd *cmd = NULL;
int frame_size = MFI_FRAME_SIZE * 16;
hwaddr frame_size_p = frame_size;
cmd = megasas_next_frame(s, frame);
/* All frames busy */
if (!cmd) {
return NULL;
}
if (!cmd->pa) {
cmd->pa = frame;
/* Map all possible frames */
cmd->frame = cpu_physical_memory_map(frame, &frame_size_p, 0);
if (frame_size_p != frame_size) {
trace_megasas_qf_map_failed(cmd->index, (unsigned long)frame);
if (cmd->frame) {
cpu_physical_memory_unmap(cmd->frame, frame_size_p, 0, 0);
cmd->frame = NULL;
cmd->pa = 0;
}
s->event_count++;
return NULL;
}
cmd->pa_size = frame_size_p;
cmd->context = context;
if (!megasas_use_queue64(s)) {
cmd->context &= (uint64_t)0xFFFFFFFF;
}
}
cmd->count = count;
s->busy++;
trace_megasas_qf_enqueue(cmd->index, cmd->count, cmd->context,
s->reply_queue_head, s->busy);
return cmd;
}
static void megasas_complete_frame(MegasasState *s, uint64_t context)
{
PCIDevice *pci_dev = PCI_DEVICE(s);
int tail, queue_offset;
/* Decrement busy count */
s->busy--;
if (s->reply_queue_pa) {
/*
* Put command on the reply queue.
* Context is opaque, but emulation is running in
* little endian. So convert it.
*/
tail = s->reply_queue_head;
if (megasas_use_queue64(s)) {
queue_offset = tail * sizeof(uint64_t);
stq_le_phys(&address_space_memory,
s->reply_queue_pa + queue_offset, context);
} else {
queue_offset = tail * sizeof(uint32_t);
stl_le_phys(&address_space_memory,
s->reply_queue_pa + queue_offset, context);
}
s->reply_queue_head = megasas_next_index(s, tail, s->fw_cmds);
trace_megasas_qf_complete(context, tail, queue_offset,
s->busy, s->doorbell);
}
if (megasas_intr_enabled(s)) {
/* Notify HBA */
s->doorbell++;
if (s->doorbell == 1) {
if (msix_enabled(pci_dev)) {
trace_megasas_msix_raise(0);
msix_notify(pci_dev, 0);
} else if (msi_enabled(pci_dev)) {
trace_megasas_msi_raise(0);
msi_notify(pci_dev, 0);
} else {
trace_megasas_irq_raise();
pci_irq_assert(pci_dev);
}
}
} else {
trace_megasas_qf_complete_noirq(context);
}
}
static void megasas_reset_frames(MegasasState *s)
{
int i;
MegasasCmd *cmd;
for (i = 0; i < s->fw_cmds; i++) {
cmd = &s->frames[i];
if (cmd->pa) {
cpu_physical_memory_unmap(cmd->frame, cmd->pa_size, 0, 0);
cmd->frame = NULL;
cmd->pa = 0;
}
}
}
static void megasas_abort_command(MegasasCmd *cmd)
{
if (cmd->req) {
scsi_req_cancel(cmd->req);
cmd->req = NULL;
}
}
static int megasas_init_firmware(MegasasState *s, MegasasCmd *cmd)
{
uint32_t pa_hi, pa_lo;
hwaddr iq_pa, initq_size;
struct mfi_init_qinfo *initq;
uint32_t flags;
int ret = MFI_STAT_OK;
pa_lo = le32_to_cpu(cmd->frame->init.qinfo_new_addr_lo);
pa_hi = le32_to_cpu(cmd->frame->init.qinfo_new_addr_hi);
iq_pa = (((uint64_t) pa_hi << 32) | pa_lo);
trace_megasas_init_firmware((uint64_t)iq_pa);
initq_size = sizeof(*initq);
initq = cpu_physical_memory_map(iq_pa, &initq_size, 0);
if (!initq || initq_size != sizeof(*initq)) {
trace_megasas_initq_map_failed(cmd->index);
s->event_count++;
ret = MFI_STAT_MEMORY_NOT_AVAILABLE;
goto out;
}
s->reply_queue_len = le32_to_cpu(initq->rq_entries) & 0xFFFF;
if (s->reply_queue_len > s->fw_cmds) {
trace_megasas_initq_mismatch(s->reply_queue_len, s->fw_cmds);
s->event_count++;
ret = MFI_STAT_INVALID_PARAMETER;
goto out;
}
pa_lo = le32_to_cpu(initq->rq_addr_lo);
pa_hi = le32_to_cpu(initq->rq_addr_hi);
s->reply_queue_pa = ((uint64_t) pa_hi << 32) | pa_lo;
pa_lo = le32_to_cpu(initq->ci_addr_lo);
pa_hi = le32_to_cpu(initq->ci_addr_hi);
s->consumer_pa = ((uint64_t) pa_hi << 32) | pa_lo;
pa_lo = le32_to_cpu(initq->pi_addr_lo);
pa_hi = le32_to_cpu(initq->pi_addr_hi);
s->producer_pa = ((uint64_t) pa_hi << 32) | pa_lo;
s->reply_queue_head = ldl_le_phys(&address_space_memory, s->producer_pa);
s->reply_queue_tail = ldl_le_phys(&address_space_memory, s->consumer_pa);
flags = le32_to_cpu(initq->flags);
if (flags & MFI_QUEUE_FLAG_CONTEXT64) {
s->flags |= MEGASAS_MASK_USE_QUEUE64;
}
trace_megasas_init_queue((unsigned long)s->reply_queue_pa,
s->reply_queue_len, s->reply_queue_head,
s->reply_queue_tail, flags);
megasas_reset_frames(s);
s->fw_state = MFI_FWSTATE_OPERATIONAL;
out:
if (initq) {
cpu_physical_memory_unmap(initq, initq_size, 0, 0);
}
return ret;
}
static int megasas_map_dcmd(MegasasState *s, MegasasCmd *cmd)
{
dma_addr_t iov_pa, iov_size;
cmd->flags = le16_to_cpu(cmd->frame->header.flags);
if (!cmd->frame->header.sge_count) {
trace_megasas_dcmd_zero_sge(cmd->index);
cmd->iov_size = 0;
return 0;
} else if (cmd->frame->header.sge_count > 1) {
trace_megasas_dcmd_invalid_sge(cmd->index,
cmd->frame->header.sge_count);
cmd->iov_size = 0;
return -1;
}
iov_pa = megasas_sgl_get_addr(cmd, &cmd->frame->dcmd.sgl);
iov_size = megasas_sgl_get_len(cmd, &cmd->frame->dcmd.sgl);
pci_dma_sglist_init(&cmd->qsg, PCI_DEVICE(s), 1);
qemu_sglist_add(&cmd->qsg, iov_pa, iov_size);
cmd->iov_size = iov_size;
return cmd->iov_size;
}
static void megasas_finish_dcmd(MegasasCmd *cmd, uint32_t iov_size)
{
trace_megasas_finish_dcmd(cmd->index, iov_size);
if (cmd->frame->header.sge_count) {
qemu_sglist_destroy(&cmd->qsg);
}
if (iov_size > cmd->iov_size) {
if (megasas_frame_is_ieee_sgl(cmd)) {
cmd->frame->dcmd.sgl.sg_skinny->len = cpu_to_le32(iov_size);
} else if (megasas_frame_is_sgl64(cmd)) {
cmd->frame->dcmd.sgl.sg64->len = cpu_to_le32(iov_size);
} else {
cmd->frame->dcmd.sgl.sg32->len = cpu_to_le32(iov_size);
}
}
cmd->iov_size = 0;
}
static int megasas_ctrl_get_info(MegasasState *s, MegasasCmd *cmd)
{
PCIDevice *pci_dev = PCI_DEVICE(s);
struct mfi_ctrl_info info;
size_t dcmd_size = sizeof(info);
BusChild *kid;
int num_ld_disks = 0;
uint16_t sdev_id;
memset(&info, 0x0, cmd->iov_size);
if (cmd->iov_size < dcmd_size) {
trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
dcmd_size);
return MFI_STAT_INVALID_PARAMETER;
}
info.pci.vendor = cpu_to_le16(PCI_VENDOR_ID_LSI_LOGIC);
info.pci.device = cpu_to_le16(PCI_DEVICE_ID_LSI_SAS1078);
info.pci.subvendor = cpu_to_le16(PCI_VENDOR_ID_LSI_LOGIC);
info.pci.subdevice = cpu_to_le16(0x1013);
/*
* For some reason the firmware supports
* only up to 8 device ports.
* Despite supporting a far larger number
* of devices for the physical devices.
* So just display the first 8 devices
* in the device port list, independent
* of how many logical devices are actually
* present.
*/
info.host.type = MFI_INFO_HOST_PCIE;
info.device.type = MFI_INFO_DEV_SAS3G;
info.device.port_count = 8;
QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
SCSIDevice *sdev = DO_UPCAST(SCSIDevice, qdev, kid->child);
if (num_ld_disks < 8) {
sdev_id = ((sdev->id & 0xFF) >> 8) | (sdev->lun & 0xFF);
info.device.port_addr[num_ld_disks] =
cpu_to_le64(megasas_get_sata_addr(sdev_id));
}
num_ld_disks++;
}
memcpy(info.product_name, "MegaRAID SAS 8708EM2", 20);
snprintf(info.serial_number, 32, "%s", s->hba_serial);
snprintf(info.package_version, 0x60, "%s-QEMU", QEMU_VERSION);
memcpy(info.image_component[0].name, "APP", 3);
memcpy(info.image_component[0].version, MEGASAS_VERSION "-QEMU", 9);
memcpy(info.image_component[0].build_date, "Apr 1 2014", 11);
memcpy(info.image_component[0].build_time, "12:34:56", 8);
info.image_component_count = 1;
if (pci_dev->has_rom) {
uint8_t biosver[32];
uint8_t *ptr;
ptr = memory_region_get_ram_ptr(&pci_dev->rom);
memcpy(biosver, ptr + 0x41, 31);
memcpy(info.image_component[1].name, "BIOS", 4);
memcpy(info.image_component[1].version, biosver,
strlen((const char *)biosver));
info.image_component_count++;
}
info.current_fw_time = cpu_to_le32(megasas_fw_time());
info.max_arms = 32;
info.max_spans = 8;
info.max_arrays = MEGASAS_MAX_ARRAYS;
info.max_lds = s->fw_luns;
info.max_cmds = cpu_to_le16(s->fw_cmds);
info.max_sg_elements = cpu_to_le16(s->fw_sge);
info.max_request_size = cpu_to_le32(MEGASAS_MAX_SECTORS);
info.lds_present = cpu_to_le16(num_ld_disks);
info.pd_present = cpu_to_le16(num_ld_disks);
info.pd_disks_present = cpu_to_le16(num_ld_disks);
info.hw_present = cpu_to_le32(MFI_INFO_HW_NVRAM |
MFI_INFO_HW_MEM |
MFI_INFO_HW_FLASH);
info.memory_size = cpu_to_le16(512);
info.nvram_size = cpu_to_le16(32);
info.flash_size = cpu_to_le16(16);
info.raid_levels = cpu_to_le32(MFI_INFO_RAID_0);
info.adapter_ops = cpu_to_le32(MFI_INFO_AOPS_RBLD_RATE |
MFI_INFO_AOPS_SELF_DIAGNOSTIC |
MFI_INFO_AOPS_MIXED_ARRAY);
info.ld_ops = cpu_to_le32(MFI_INFO_LDOPS_DISK_CACHE_POLICY |
MFI_INFO_LDOPS_ACCESS_POLICY |
MFI_INFO_LDOPS_IO_POLICY |
MFI_INFO_LDOPS_WRITE_POLICY |
MFI_INFO_LDOPS_READ_POLICY);
info.max_strips_per_io = cpu_to_le16(s->fw_sge);
info.stripe_sz_ops.min = 3;
info.stripe_sz_ops.max = ffs(MEGASAS_MAX_SECTORS + 1) - 1;
info.properties.pred_fail_poll_interval = cpu_to_le16(300);
info.properties.intr_throttle_cnt = cpu_to_le16(16);
info.properties.intr_throttle_timeout = cpu_to_le16(50);
info.properties.rebuild_rate = 30;
info.properties.patrol_read_rate = 30;
info.properties.bgi_rate = 30;
info.properties.cc_rate = 30;
info.properties.recon_rate = 30;
info.properties.cache_flush_interval = 4;
info.properties.spinup_drv_cnt = 2;
info.properties.spinup_delay = 6;
info.properties.ecc_bucket_size = 15;
info.properties.ecc_bucket_leak_rate = cpu_to_le16(1440);
info.properties.expose_encl_devices = 1;
info.properties.OnOffProperties = cpu_to_le32(MFI_CTRL_PROP_EnableJBOD);
info.pd_ops = cpu_to_le32(MFI_INFO_PDOPS_FORCE_ONLINE |
MFI_INFO_PDOPS_FORCE_OFFLINE);
info.pd_mix_support = cpu_to_le32(MFI_INFO_PDMIX_SAS |
MFI_INFO_PDMIX_SATA |
MFI_INFO_PDMIX_LD);
cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
return MFI_STAT_OK;
}
static int megasas_mfc_get_defaults(MegasasState *s, MegasasCmd *cmd)
{
struct mfi_defaults info;
size_t dcmd_size = sizeof(struct mfi_defaults);
memset(&info, 0x0, dcmd_size);
if (cmd->iov_size < dcmd_size) {
trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
dcmd_size);
return MFI_STAT_INVALID_PARAMETER;
}
info.sas_addr = cpu_to_le64(s->sas_addr);
info.stripe_size = 3;
info.flush_time = 4;
info.background_rate = 30;
info.allow_mix_in_enclosure = 1;
info.allow_mix_in_ld = 1;
info.direct_pd_mapping = 1;
/* Enable for BIOS support */
info.bios_enumerate_lds = 1;
info.disable_ctrl_r = 1;
info.expose_enclosure_devices = 1;
info.disable_preboot_cli = 1;
info.cluster_disable = 1;
cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
return MFI_STAT_OK;
}
static int megasas_dcmd_get_bios_info(MegasasState *s, MegasasCmd *cmd)
{
struct mfi_bios_data info;
size_t dcmd_size = sizeof(info);
memset(&info, 0x0, dcmd_size);
if (cmd->iov_size < dcmd_size) {
trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
dcmd_size);
return MFI_STAT_INVALID_PARAMETER;
}
info.continue_on_error = 1;
info.verbose = 1;
if (megasas_is_jbod(s)) {
info.expose_all_drives = 1;
}
cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
return MFI_STAT_OK;
}
static int megasas_dcmd_get_fw_time(MegasasState *s, MegasasCmd *cmd)
{
uint64_t fw_time;
size_t dcmd_size = sizeof(fw_time);
fw_time = cpu_to_le64(megasas_fw_time());
cmd->iov_size -= dma_buf_read((uint8_t *)&fw_time, dcmd_size, &cmd->qsg);
return MFI_STAT_OK;
}
static int megasas_dcmd_set_fw_time(MegasasState *s, MegasasCmd *cmd)
{
uint64_t fw_time;
/* This is a dummy; setting of firmware time is not allowed */
memcpy(&fw_time, cmd->frame->dcmd.mbox, sizeof(fw_time));
trace_megasas_dcmd_set_fw_time(cmd->index, fw_time);
fw_time = cpu_to_le64(megasas_fw_time());
return MFI_STAT_OK;
}
static int megasas_event_info(MegasasState *s, MegasasCmd *cmd)
{
struct mfi_evt_log_state info;
size_t dcmd_size = sizeof(info);
memset(&info, 0, dcmd_size);
info.newest_seq_num = cpu_to_le32(s->event_count);
info.shutdown_seq_num = cpu_to_le32(s->shutdown_event);
info.boot_seq_num = cpu_to_le32(s->boot_event);
cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
return MFI_STAT_OK;
}
static int megasas_event_wait(MegasasState *s, MegasasCmd *cmd)
{
union mfi_evt event;
if (cmd->iov_size < sizeof(struct mfi_evt_detail)) {
trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
sizeof(struct mfi_evt_detail));
return MFI_STAT_INVALID_PARAMETER;
}
s->event_count = cpu_to_le32(cmd->frame->dcmd.mbox[0]);
event.word = cpu_to_le32(cmd->frame->dcmd.mbox[4]);
s->event_locale = event.members.locale;
s->event_class = event.members.class;
s->event_cmd = cmd;
/* Decrease busy count; event frame doesn't count here */
s->busy--;
cmd->iov_size = sizeof(struct mfi_evt_detail);
return MFI_STAT_INVALID_STATUS;
}
static int megasas_dcmd_pd_get_list(MegasasState *s, MegasasCmd *cmd)
{
struct mfi_pd_list info;
size_t dcmd_size = sizeof(info);
BusChild *kid;
uint32_t offset, dcmd_limit, num_pd_disks = 0, max_pd_disks;
uint16_t sdev_id;
memset(&info, 0, dcmd_size);
offset = 8;
dcmd_limit = offset + sizeof(struct mfi_pd_address);
if (cmd->iov_size < dcmd_limit) {
trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
dcmd_limit);
return MFI_STAT_INVALID_PARAMETER;
}
max_pd_disks = (cmd->iov_size - offset) / sizeof(struct mfi_pd_address);
if (max_pd_disks > s->fw_luns) {
max_pd_disks = s->fw_luns;
}
QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
SCSIDevice *sdev = DO_UPCAST(SCSIDevice, qdev, kid->child);
sdev_id = ((sdev->id & 0xFF) >> 8) | (sdev->lun & 0xFF);
info.addr[num_pd_disks].device_id = cpu_to_le16(sdev_id);
info.addr[num_pd_disks].encl_device_id = 0xFFFF;
info.addr[num_pd_disks].encl_index = 0;
info.addr[num_pd_disks].slot_number = (sdev->id & 0xFF);
info.addr[num_pd_disks].scsi_dev_type = sdev->type;
info.addr[num_pd_disks].connect_port_bitmap = 0x1;
info.addr[num_pd_disks].sas_addr[0] =
cpu_to_le64(megasas_get_sata_addr(sdev_id));
num_pd_disks++;
offset += sizeof(struct mfi_pd_address);
}
trace_megasas_dcmd_pd_get_list(cmd->index, num_pd_disks,
max_pd_disks, offset);
info.size = cpu_to_le32(offset);
info.count = cpu_to_le32(num_pd_disks);
cmd->iov_size -= dma_buf_read((uint8_t *)&info, offset, &cmd->qsg);
return MFI_STAT_OK;
}
static int megasas_dcmd_pd_list_query(MegasasState *s, MegasasCmd *cmd)
{
uint16_t flags;
/* mbox0 contains flags */
flags = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
trace_megasas_dcmd_pd_list_query(cmd->index, flags);
if (flags == MR_PD_QUERY_TYPE_ALL ||
megasas_is_jbod(s)) {
return megasas_dcmd_pd_get_list(s, cmd);
}
return MFI_STAT_OK;
}
static int megasas_pd_get_info_submit(SCSIDevice *sdev, int lun,
MegasasCmd *cmd)
{
struct mfi_pd_info *info = cmd->iov_buf;
size_t dcmd_size = sizeof(struct mfi_pd_info);
BlockConf *conf = &sdev->conf;
uint64_t pd_size;
uint16_t sdev_id = ((sdev->id & 0xFF) >> 8) | (lun & 0xFF);
uint8_t cmdbuf[6];
SCSIRequest *req;
size_t len, resid;
if (!cmd->iov_buf) {
cmd->iov_buf = g_malloc(dcmd_size);
memset(cmd->iov_buf, 0, dcmd_size);
info = cmd->iov_buf;
info->inquiry_data[0] = 0x7f; /* Force PQual 0x3, PType 0x1f */
info->vpd_page83[0] = 0x7f;
megasas_setup_inquiry(cmdbuf, 0, sizeof(info->inquiry_data));
req = scsi_req_new(sdev, cmd->index, lun, cmdbuf, cmd);
if (!req) {
trace_megasas_dcmd_req_alloc_failed(cmd->index,
"PD get info std inquiry");
g_free(cmd->iov_buf);
cmd->iov_buf = NULL;
return MFI_STAT_FLASH_ALLOC_FAIL;
}
trace_megasas_dcmd_internal_submit(cmd->index,
"PD get info std inquiry", lun);
len = scsi_req_enqueue(req);
if (len > 0) {
cmd->iov_size = len;
scsi_req_continue(req);
}
return MFI_STAT_INVALID_STATUS;
} else if (info->inquiry_data[0] != 0x7f && info->vpd_page83[0] == 0x7f) {
megasas_setup_inquiry(cmdbuf, 0x83, sizeof(info->vpd_page83));
req = scsi_req_new(sdev, cmd->index, lun, cmdbuf, cmd);
if (!req) {
trace_megasas_dcmd_req_alloc_failed(cmd->index,
"PD get info vpd inquiry");
return MFI_STAT_FLASH_ALLOC_FAIL;
}
trace_megasas_dcmd_internal_submit(cmd->index,
"PD get info vpd inquiry", lun);
len = scsi_req_enqueue(req);
if (len > 0) {
cmd->iov_size = len;
scsi_req_continue(req);
}
return MFI_STAT_INVALID_STATUS;
}
/* Finished, set FW state */
if ((info->inquiry_data[0] >> 5) == 0) {
if (megasas_is_jbod(cmd->state)) {
info->fw_state = cpu_to_le16(MFI_PD_STATE_SYSTEM);
} else {
info->fw_state = cpu_to_le16(MFI_PD_STATE_ONLINE);
}
} else {
info->fw_state = cpu_to_le16(MFI_PD_STATE_OFFLINE);
}
info->ref.v.device_id = cpu_to_le16(sdev_id);
info->state.ddf.pd_type = cpu_to_le16(MFI_PD_DDF_TYPE_IN_VD|
MFI_PD_DDF_TYPE_INTF_SAS);
bdrv_get_geometry(conf->bs, &pd_size);
info->raw_size = cpu_to_le64(pd_size);
info->non_coerced_size = cpu_to_le64(pd_size);
info->coerced_size = cpu_to_le64(pd_size);
info->encl_device_id = 0xFFFF;
info->slot_number = (sdev->id & 0xFF);
info->path_info.count = 1;
info->path_info.sas_addr[0] =
cpu_to_le64(megasas_get_sata_addr(sdev_id));
info->connected_port_bitmap = 0x1;
info->device_speed = 1;
info->link_speed = 1;
resid = dma_buf_read(cmd->iov_buf, dcmd_size, &cmd->qsg);
g_free(cmd->iov_buf);
cmd->iov_size = dcmd_size - resid;
cmd->iov_buf = NULL;
return MFI_STAT_OK;
}
static int megasas_dcmd_pd_get_info(MegasasState *s, MegasasCmd *cmd)
{
size_t dcmd_size = sizeof(struct mfi_pd_info);
uint16_t pd_id;
SCSIDevice *sdev = NULL;
int retval = MFI_STAT_DEVICE_NOT_FOUND;
if (cmd->iov_size < dcmd_size) {
return MFI_STAT_INVALID_PARAMETER;
}
/* mbox0 has the ID */
pd_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
sdev = scsi_device_find(&s->bus, 0, pd_id, 0);
trace_megasas_dcmd_pd_get_info(cmd->index, pd_id);
if (sdev) {
/* Submit inquiry */
retval = megasas_pd_get_info_submit(sdev, pd_id, cmd);
}
return retval;
}
static int megasas_dcmd_ld_get_list(MegasasState *s, MegasasCmd *cmd)
{
struct mfi_ld_list info;
size_t dcmd_size = sizeof(info), resid;
uint32_t num_ld_disks = 0, max_ld_disks = s->fw_luns;
uint64_t ld_size;
BusChild *kid;
memset(&info, 0, dcmd_size);
if (cmd->iov_size < dcmd_size) {
trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
dcmd_size);
return MFI_STAT_INVALID_PARAMETER;
}
if (megasas_is_jbod(s)) {
max_ld_disks = 0;
}
QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
SCSIDevice *sdev = DO_UPCAST(SCSIDevice, qdev, kid->child);
BlockConf *conf = &sdev->conf;
if (num_ld_disks >= max_ld_disks) {
break;
}
/* Logical device size is in blocks */
bdrv_get_geometry(conf->bs, &ld_size);
info.ld_list[num_ld_disks].ld.v.target_id = sdev->id;
info.ld_list[num_ld_disks].ld.v.lun_id = sdev->lun;
info.ld_list[num_ld_disks].state = MFI_LD_STATE_OPTIMAL;
info.ld_list[num_ld_disks].size = cpu_to_le64(ld_size);
num_ld_disks++;
}
info.ld_count = cpu_to_le32(num_ld_disks);
trace_megasas_dcmd_ld_get_list(cmd->index, num_ld_disks, max_ld_disks);
resid = dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
cmd->iov_size = dcmd_size - resid;
return MFI_STAT_OK;
}
static int megasas_dcmd_ld_list_query(MegasasState *s, MegasasCmd *cmd)
{
uint16_t flags;
/* mbox0 contains flags */
flags = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
trace_megasas_dcmd_ld_list_query(cmd->index, flags);
if (flags == MR_LD_QUERY_TYPE_ALL ||
flags == MR_LD_QUERY_TYPE_EXPOSED_TO_HOST) {
return megasas_dcmd_ld_get_list(s, cmd);
}
return MFI_STAT_OK;
}
static int megasas_ld_get_info_submit(SCSIDevice *sdev, int lun,
MegasasCmd *cmd)
{
struct mfi_ld_info *info = cmd->iov_buf;
size_t dcmd_size = sizeof(struct mfi_ld_info);
uint8_t cdb[6];
SCSIRequest *req;
ssize_t len, resid;
BlockConf *conf = &sdev->conf;
uint16_t sdev_id = ((sdev->id & 0xFF) >> 8) | (lun & 0xFF);
uint64_t ld_size;
if (!cmd->iov_buf) {
cmd->iov_buf = g_malloc(dcmd_size);
memset(cmd->iov_buf, 0x0, dcmd_size);
info = cmd->iov_buf;
megasas_setup_inquiry(cdb, 0x83, sizeof(info->vpd_page83));
req = scsi_req_new(sdev, cmd->index, lun, cdb, cmd);
if (!req) {
trace_megasas_dcmd_req_alloc_failed(cmd->index,
"LD get info vpd inquiry");
g_free(cmd->iov_buf);
cmd->iov_buf = NULL;
return MFI_STAT_FLASH_ALLOC_FAIL;
}
trace_megasas_dcmd_internal_submit(cmd->index,
"LD get info vpd inquiry", lun);
len = scsi_req_enqueue(req);
if (len > 0) {
cmd->iov_size = len;
scsi_req_continue(req);
}
return MFI_STAT_INVALID_STATUS;
}
info->ld_config.params.state = MFI_LD_STATE_OPTIMAL;
info->ld_config.properties.ld.v.target_id = lun;
info->ld_config.params.stripe_size = 3;
info->ld_config.params.num_drives = 1;
info->ld_config.params.is_consistent = 1;
/* Logical device size is in blocks */
bdrv_get_geometry(conf->bs, &ld_size);
info->size = cpu_to_le64(ld_size);
memset(info->ld_config.span, 0, sizeof(info->ld_config.span));
info->ld_config.span[0].start_block = 0;
info->ld_config.span[0].num_blocks = info->size;
info->ld_config.span[0].array_ref = cpu_to_le16(sdev_id);
resid = dma_buf_read(cmd->iov_buf, dcmd_size, &cmd->qsg);
g_free(cmd->iov_buf);
cmd->iov_size = dcmd_size - resid;
cmd->iov_buf = NULL;
return MFI_STAT_OK;
}
static int megasas_dcmd_ld_get_info(MegasasState *s, MegasasCmd *cmd)
{
struct mfi_ld_info info;
size_t dcmd_size = sizeof(info);
uint16_t ld_id;
uint32_t max_ld_disks = s->fw_luns;
SCSIDevice *sdev = NULL;
int retval = MFI_STAT_DEVICE_NOT_FOUND;
if (cmd->iov_size < dcmd_size) {
return MFI_STAT_INVALID_PARAMETER;
}
/* mbox0 has the ID */
ld_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]);
trace_megasas_dcmd_ld_get_info(cmd->index, ld_id);
if (megasas_is_jbod(s)) {
return MFI_STAT_DEVICE_NOT_FOUND;
}
if (ld_id < max_ld_disks) {
sdev = scsi_device_find(&s->bus, 0, ld_id, 0);
}
if (sdev) {
retval = megasas_ld_get_info_submit(sdev, ld_id, cmd);
}
return retval;
}
static int megasas_dcmd_cfg_read(MegasasState *s, MegasasCmd *cmd)
{
uint8_t data[4096];
struct mfi_config_data *info;
int num_pd_disks = 0, array_offset, ld_offset;
BusChild *kid;
if (cmd->iov_size > 4096) {
return MFI_STAT_INVALID_PARAMETER;
}
QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
num_pd_disks++;
}
info = (struct mfi_config_data *)&data;
/*
* Array mapping:
* - One array per SCSI device
* - One logical drive per SCSI device
* spanning the entire device
*/
info->array_count = num_pd_disks;
info->array_size = sizeof(struct mfi_array) * num_pd_disks;
info->log_drv_count = num_pd_disks;
info->log_drv_size = sizeof(struct mfi_ld_config) * num_pd_disks;
info->spares_count = 0;
info->spares_size = sizeof(struct mfi_spare);
info->size = sizeof(struct mfi_config_data) + info->array_size +
info->log_drv_size;
if (info->size > 4096) {
return MFI_STAT_INVALID_PARAMETER;
}
array_offset = sizeof(struct mfi_config_data);
ld_offset = array_offset + sizeof(struct mfi_array) * num_pd_disks;
QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
SCSIDevice *sdev = DO_UPCAST(SCSIDevice, qdev, kid->child);
BlockConf *conf = &sdev->conf;
uint16_t sdev_id = ((sdev->id & 0xFF) >> 8) | (sdev->lun & 0xFF);
struct mfi_array *array;
struct mfi_ld_config *ld;
uint64_t pd_size;
int i;
array = (struct mfi_array *)(data + array_offset);
bdrv_get_geometry(conf->bs, &pd_size);
array->size = cpu_to_le64(pd_size);
array->num_drives = 1;
array->array_ref = cpu_to_le16(sdev_id);
array->pd[0].ref.v.device_id = cpu_to_le16(sdev_id);
array->pd[0].ref.v.seq_num = 0;
array->pd[0].fw_state = MFI_PD_STATE_ONLINE;
array->pd[0].encl.pd = 0xFF;
array->pd[0].encl.slot = (sdev->id & 0xFF);
for (i = 1; i < MFI_MAX_ROW_SIZE; i++) {
array->pd[i].ref.v.device_id = 0xFFFF;
array->pd[i].ref.v.seq_num = 0;
array->pd[i].fw_state = MFI_PD_STATE_UNCONFIGURED_GOOD;
array->pd[i].encl.pd = 0xFF;
array->pd[i].encl.slot = 0xFF;
}
array_offset += sizeof(struct mfi_array);
ld = (struct mfi_ld_config *)(data + ld_offset);
memset(ld, 0, sizeof(struct mfi_ld_config));
ld->properties.ld.v.target_id = (sdev->id & 0xFF);
ld->properties.default_cache_policy = MR_LD_CACHE_READ_AHEAD |
MR_LD_CACHE_READ_ADAPTIVE;
ld->properties.current_cache_policy = MR_LD_CACHE_READ_AHEAD |
MR_LD_CACHE_READ_ADAPTIVE;
ld->params.state = MFI_LD_STATE_OPTIMAL;
ld->params.stripe_size = 3;
ld->params.num_drives = 1;
ld->params.span_depth = 1;
ld->params.is_consistent = 1;
ld->span[0].start_block = 0;
ld->span[0].num_blocks = cpu_to_le64(pd_size);
ld->span[0].array_ref = cpu_to_le16(sdev_id);
ld_offset += sizeof(struct mfi_ld_config);
}
cmd->iov_size -= dma_buf_read((uint8_t *)data, info->size, &cmd->qsg);
return MFI_STAT_OK;
}
static int megasas_dcmd_get_properties(MegasasState *s, MegasasCmd *cmd)
{
struct mfi_ctrl_props info;
size_t dcmd_size = sizeof(info);
memset(&info, 0x0, dcmd_size);
if (cmd->iov_size < dcmd_size) {
trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
dcmd_size);
return MFI_STAT_INVALID_PARAMETER;
}
info.pred_fail_poll_interval = cpu_to_le16(300);
info.intr_throttle_cnt = cpu_to_le16(16);
info.intr_throttle_timeout = cpu_to_le16(50);
info.rebuild_rate = 30;
info.patrol_read_rate = 30;
info.bgi_rate = 30;
info.cc_rate = 30;
info.recon_rate = 30;
info.cache_flush_interval = 4;
info.spinup_drv_cnt = 2;
info.spinup_delay = 6;
info.ecc_bucket_size = 15;
info.ecc_bucket_leak_rate = cpu_to_le16(1440);
info.expose_encl_devices = 1;
cmd->iov_size -= dma_buf_read((uint8_t *)&info, dcmd_size, &cmd->qsg);
return MFI_STAT_OK;
}
static int megasas_cache_flush(MegasasState *s, MegasasCmd *cmd)
{
bdrv_drain_all();
return MFI_STAT_OK;
}
static int megasas_ctrl_shutdown(MegasasState *s, MegasasCmd *cmd)
{
s->fw_state = MFI_FWSTATE_READY;
return MFI_STAT_OK;
}
static int megasas_cluster_reset_ld(MegasasState *s, MegasasCmd *cmd)
{
return MFI_STAT_INVALID_DCMD;
}
static int megasas_dcmd_set_properties(MegasasState *s, MegasasCmd *cmd)
{
struct mfi_ctrl_props info;
size_t dcmd_size = sizeof(info);
if (cmd->iov_size < dcmd_size) {
trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size,
dcmd_size);
return MFI_STAT_INVALID_PARAMETER;
}
dma_buf_write((uint8_t *)&info, cmd->iov_size, &cmd->qsg);
trace_megasas_dcmd_unsupported(cmd->index, cmd->iov_size);
return MFI_STAT_OK;
}
static int megasas_dcmd_dummy(MegasasState *s, MegasasCmd *cmd)
{
trace_megasas_dcmd_dummy(cmd->index, cmd->iov_size);
return MFI_STAT_OK;
}
static const struct dcmd_cmd_tbl_t {
int opcode;
const char *desc;
int (*func)(MegasasState *s, MegasasCmd *cmd);
} dcmd_cmd_tbl[] = {
{ MFI_DCMD_CTRL_MFI_HOST_MEM_ALLOC, "CTRL_HOST_MEM_ALLOC",
megasas_dcmd_dummy },
{ MFI_DCMD_CTRL_GET_INFO, "CTRL_GET_INFO",
megasas_ctrl_get_info },
{ MFI_DCMD_CTRL_GET_PROPERTIES, "CTRL_GET_PROPERTIES",
megasas_dcmd_get_properties },
{ MFI_DCMD_CTRL_SET_PROPERTIES, "CTRL_SET_PROPERTIES",
megasas_dcmd_set_properties },
{ MFI_DCMD_CTRL_ALARM_GET, "CTRL_ALARM_GET",
megasas_dcmd_dummy },
{ MFI_DCMD_CTRL_ALARM_ENABLE, "CTRL_ALARM_ENABLE",
megasas_dcmd_dummy },
{ MFI_DCMD_CTRL_ALARM_DISABLE, "CTRL_ALARM_DISABLE",
megasas_dcmd_dummy },
{ MFI_DCMD_CTRL_ALARM_SILENCE, "CTRL_ALARM_SILENCE",
megasas_dcmd_dummy },
{ MFI_DCMD_CTRL_ALARM_TEST, "CTRL_ALARM_TEST",
megasas_dcmd_dummy },
{ MFI_DCMD_CTRL_EVENT_GETINFO, "CTRL_EVENT_GETINFO",
megasas_event_info },
{ MFI_DCMD_CTRL_EVENT_GET, "CTRL_EVENT_GET",
megasas_dcmd_dummy },
{ MFI_DCMD_CTRL_EVENT_WAIT, "CTRL_EVENT_WAIT",
megasas_event_wait },
{ MFI_DCMD_CTRL_SHUTDOWN, "CTRL_SHUTDOWN",
megasas_ctrl_shutdown },
{ MFI_DCMD_HIBERNATE_STANDBY, "CTRL_STANDBY",
megasas_dcmd_dummy },
{ MFI_DCMD_CTRL_GET_TIME, "CTRL_GET_TIME",
megasas_dcmd_get_fw_time },
{ MFI_DCMD_CTRL_SET_TIME, "CTRL_SET_TIME",
megasas_dcmd_set_fw_time },
{ MFI_DCMD_CTRL_BIOS_DATA_GET, "CTRL_BIOS_DATA_GET",
megasas_dcmd_get_bios_info },
{ MFI_DCMD_CTRL_FACTORY_DEFAULTS, "CTRL_FACTORY_DEFAULTS",
megasas_dcmd_dummy },
{ MFI_DCMD_CTRL_MFC_DEFAULTS_GET, "CTRL_MFC_DEFAULTS_GET",
megasas_mfc_get_defaults },
{ MFI_DCMD_CTRL_MFC_DEFAULTS_SET, "CTRL_MFC_DEFAULTS_SET",
megasas_dcmd_dummy },
{ MFI_DCMD_CTRL_CACHE_FLUSH, "CTRL_CACHE_FLUSH",
megasas_cache_flush },
{ MFI_DCMD_PD_GET_LIST, "PD_GET_LIST",
megasas_dcmd_pd_get_list },
{ MFI_DCMD_PD_LIST_QUERY, "PD_LIST_QUERY",
megasas_dcmd_pd_list_query },
{ MFI_DCMD_PD_GET_INFO, "PD_GET_INFO",
megasas_dcmd_pd_get_info },
{ MFI_DCMD_PD_STATE_SET, "PD_STATE_SET",
megasas_dcmd_dummy },
{ MFI_DCMD_PD_REBUILD, "PD_REBUILD",
megasas_dcmd_dummy },
{ MFI_DCMD_PD_BLINK, "PD_BLINK",
megasas_dcmd_dummy },
{ MFI_DCMD_PD_UNBLINK, "PD_UNBLINK",
megasas_dcmd_dummy },
{ MFI_DCMD_LD_GET_LIST, "LD_GET_LIST",
megasas_dcmd_ld_get_list},
{ MFI_DCMD_LD_LIST_QUERY, "LD_LIST_QUERY",
megasas_dcmd_ld_list_query },
{ MFI_DCMD_LD_GET_INFO, "LD_GET_INFO",
megasas_dcmd_ld_get_info },
{ MFI_DCMD_LD_GET_PROP, "LD_GET_PROP",
megasas_dcmd_dummy },
{ MFI_DCMD_LD_SET_PROP, "LD_SET_PROP",
megasas_dcmd_dummy },
{ MFI_DCMD_LD_DELETE, "LD_DELETE",
megasas_dcmd_dummy },
{ MFI_DCMD_CFG_READ, "CFG_READ",
megasas_dcmd_cfg_read },
{ MFI_DCMD_CFG_ADD, "CFG_ADD",
megasas_dcmd_dummy },
{ MFI_DCMD_CFG_CLEAR, "CFG_CLEAR",
megasas_dcmd_dummy },
{ MFI_DCMD_CFG_FOREIGN_READ, "CFG_FOREIGN_READ",
megasas_dcmd_dummy },
{ MFI_DCMD_CFG_FOREIGN_IMPORT, "CFG_FOREIGN_IMPORT",
megasas_dcmd_dummy },
{ MFI_DCMD_BBU_STATUS, "BBU_STATUS",
megasas_dcmd_dummy },
{ MFI_DCMD_BBU_CAPACITY_INFO, "BBU_CAPACITY_INFO",
megasas_dcmd_dummy },
{ MFI_DCMD_BBU_DESIGN_INFO, "BBU_DESIGN_INFO",
megasas_dcmd_dummy },
{ MFI_DCMD_BBU_PROP_GET, "BBU_PROP_GET",
megasas_dcmd_dummy },
{ MFI_DCMD_CLUSTER, "CLUSTER",
megasas_dcmd_dummy },
{ MFI_DCMD_CLUSTER_RESET_ALL, "CLUSTER_RESET_ALL",
megasas_dcmd_dummy },
{ MFI_DCMD_CLUSTER_RESET_LD, "CLUSTER_RESET_LD",
megasas_cluster_reset_ld },
{ -1, NULL, NULL }
};
static int megasas_handle_dcmd(MegasasState *s, MegasasCmd *cmd)
{
int opcode, len;
int retval = 0;
const struct dcmd_cmd_tbl_t *cmdptr = dcmd_cmd_tbl;
opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
trace_megasas_handle_dcmd(cmd->index, opcode);
len = megasas_map_dcmd(s, cmd);
if (len < 0) {
return MFI_STAT_MEMORY_NOT_AVAILABLE;
}
while (cmdptr->opcode != -1 && cmdptr->opcode != opcode) {
cmdptr++;
}
if (cmdptr->opcode == -1) {
trace_megasas_dcmd_unhandled(cmd->index, opcode, len);
retval = megasas_dcmd_dummy(s, cmd);
} else {
trace_megasas_dcmd_enter(cmd->index, cmdptr->desc, len);
retval = cmdptr->func(s, cmd);
}
if (retval != MFI_STAT_INVALID_STATUS) {
megasas_finish_dcmd(cmd, len);
}
return retval;
}
static int megasas_finish_internal_dcmd(MegasasCmd *cmd,
SCSIRequest *req)
{
int opcode;
int retval = MFI_STAT_OK;
int lun = req->lun;
opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
scsi_req_unref(req);
trace_megasas_dcmd_internal_finish(cmd->index, opcode, lun);
switch (opcode) {
case MFI_DCMD_PD_GET_INFO:
retval = megasas_pd_get_info_submit(req->dev, lun, cmd);
break;
case MFI_DCMD_LD_GET_INFO:
retval = megasas_ld_get_info_submit(req->dev, lun, cmd);
break;
default:
trace_megasas_dcmd_internal_invalid(cmd->index, opcode);
retval = MFI_STAT_INVALID_DCMD;
break;
}
if (retval != MFI_STAT_INVALID_STATUS) {
megasas_finish_dcmd(cmd, cmd->iov_size);
}
return retval;
}
static int megasas_enqueue_req(MegasasCmd *cmd, bool is_write)
{
int len;
len = scsi_req_enqueue(cmd->req);
if (len < 0) {
len = -len;
}
if (len > 0) {
if (len > cmd->iov_size) {
if (is_write) {
trace_megasas_iov_write_overflow(cmd->index, len,
cmd->iov_size);
} else {
trace_megasas_iov_read_overflow(cmd->index, len,
cmd->iov_size);
}
}
if (len < cmd->iov_size) {
if (is_write) {
trace_megasas_iov_write_underflow(cmd->index, len,
cmd->iov_size);
} else {
trace_megasas_iov_read_underflow(cmd->index, len,
cmd->iov_size);
}
cmd->iov_size = len;
}
scsi_req_continue(cmd->req);
}
return len;
}
static int megasas_handle_scsi(MegasasState *s, MegasasCmd *cmd,
bool is_logical)
{
uint8_t *cdb;
int len;
bool is_write;
struct SCSIDevice *sdev = NULL;
cdb = cmd->frame->pass.cdb;
if (cmd->frame->header.target_id < s->fw_luns) {
sdev = scsi_device_find(&s->bus, 0, cmd->frame->header.target_id,
cmd->frame->header.lun_id);
}
cmd->iov_size = le32_to_cpu(cmd->frame->header.data_len);
trace_megasas_handle_scsi(mfi_frame_desc[cmd->frame->header.frame_cmd],
is_logical, cmd->frame->header.target_id,
cmd->frame->header.lun_id, sdev, cmd->iov_size);
if (!sdev || (megasas_is_jbod(s) && is_logical)) {
trace_megasas_scsi_target_not_present(
mfi_frame_desc[cmd->frame->header.frame_cmd], is_logical,
cmd->frame->header.target_id, cmd->frame->header.lun_id);
return MFI_STAT_DEVICE_NOT_FOUND;
}
if (cmd->frame->header.cdb_len > 16) {
trace_megasas_scsi_invalid_cdb_len(
mfi_frame_desc[cmd->frame->header.frame_cmd], is_logical,
cmd->frame->header.target_id, cmd->frame->header.lun_id,
cmd->frame->header.cdb_len);
megasas_write_sense(cmd, SENSE_CODE(INVALID_OPCODE));
cmd->frame->header.scsi_status = CHECK_CONDITION;
s->event_count++;
return MFI_STAT_SCSI_DONE_WITH_ERROR;
}
if (megasas_map_sgl(s, cmd, &cmd->frame->pass.sgl)) {
megasas_write_sense(cmd, SENSE_CODE(TARGET_FAILURE));
cmd->frame->header.scsi_status = CHECK_CONDITION;
s->event_count++;
return MFI_STAT_SCSI_DONE_WITH_ERROR;
}
cmd->req = scsi_req_new(sdev, cmd->index,
cmd->frame->header.lun_id, cdb, cmd);
if (!cmd->req) {
trace_megasas_scsi_req_alloc_failed(
mfi_frame_desc[cmd->frame->header.frame_cmd],
cmd->frame->header.target_id, cmd->frame->header.lun_id);
megasas_write_sense(cmd, SENSE_CODE(NO_SENSE));
cmd->frame->header.scsi_status = BUSY;
s->event_count++;
return MFI_STAT_SCSI_DONE_WITH_ERROR;
}
is_write = (cmd->req->cmd.mode == SCSI_XFER_TO_DEV);
len = megasas_enqueue_req(cmd, is_write);
if (len > 0) {
if (is_write) {
trace_megasas_scsi_write_start(cmd->index, len);
} else {
trace_megasas_scsi_read_start(cmd->index, len);
}
} else {
trace_megasas_scsi_nodata(cmd->index);
}
return MFI_STAT_INVALID_STATUS;
}
static int megasas_handle_io(MegasasState *s, MegasasCmd *cmd)
{
uint32_t lba_count, lba_start_hi, lba_start_lo;
uint64_t lba_start;
bool is_write = (cmd->frame->header.frame_cmd == MFI_CMD_LD_WRITE);
uint8_t cdb[16];
int len;
struct SCSIDevice *sdev = NULL;
lba_count = le32_to_cpu(cmd->frame->io.header.data_len);
lba_start_lo = le32_to_cpu(cmd->frame->io.lba_lo);
lba_start_hi = le32_to_cpu(cmd->frame->io.lba_hi);
lba_start = ((uint64_t)lba_start_hi << 32) | lba_start_lo;
if (cmd->frame->header.target_id < s->fw_luns) {
sdev = scsi_device_find(&s->bus, 0, cmd->frame->header.target_id,
cmd->frame->header.lun_id);
}
trace_megasas_handle_io(cmd->index,
mfi_frame_desc[cmd->frame->header.frame_cmd],
cmd->frame->header.target_id,
cmd->frame->header.lun_id,
(unsigned long)lba_start, (unsigned long)lba_count);
if (!sdev) {
trace_megasas_io_target_not_present(cmd->index,
mfi_frame_desc[cmd->frame->header.frame_cmd],
cmd->frame->header.target_id, cmd->frame->header.lun_id);
return MFI_STAT_DEVICE_NOT_FOUND;
}
if (cmd->frame->header.cdb_len > 16) {
trace_megasas_scsi_invalid_cdb_len(
mfi_frame_desc[cmd->frame->header.frame_cmd], 1,
cmd->frame->header.target_id, cmd->frame->header.lun_id,
cmd->frame->header.cdb_len);
megasas_write_sense(cmd, SENSE_CODE(INVALID_OPCODE));
cmd->frame->header.scsi_status = CHECK_CONDITION;
s->event_count++;
return MFI_STAT_SCSI_DONE_WITH_ERROR;
}
cmd->iov_size = lba_count * sdev->blocksize;
if (megasas_map_sgl(s, cmd, &cmd->frame->io.sgl)) {
megasas_write_sense(cmd, SENSE_CODE(TARGET_FAILURE));
cmd->frame->header.scsi_status = CHECK_CONDITION;
s->event_count++;
return MFI_STAT_SCSI_DONE_WITH_ERROR;
}
megasas_encode_lba(cdb, lba_start, lba_count, is_write);
cmd->req = scsi_req_new(sdev, cmd->index,
cmd->frame->header.lun_id, cdb, cmd);
if (!cmd->req) {
trace_megasas_scsi_req_alloc_failed(
mfi_frame_desc[cmd->frame->header.frame_cmd],
cmd->frame->header.target_id, cmd->frame->header.lun_id);
megasas_write_sense(cmd, SENSE_CODE(NO_SENSE));
cmd->frame->header.scsi_status = BUSY;
s->event_count++;
return MFI_STAT_SCSI_DONE_WITH_ERROR;
}
len = megasas_enqueue_req(cmd, is_write);
if (len > 0) {
if (is_write) {
trace_megasas_io_write_start(cmd->index, lba_start, lba_count, len);
} else {
trace_megasas_io_read_start(cmd->index, lba_start, lba_count, len);
}
}
return MFI_STAT_INVALID_STATUS;
}
static int megasas_finish_internal_command(MegasasCmd *cmd,
SCSIRequest *req, size_t resid)
{
int retval = MFI_STAT_INVALID_CMD;
if (cmd->frame->header.frame_cmd == MFI_CMD_DCMD) {
cmd->iov_size -= resid;
retval = megasas_finish_internal_dcmd(cmd, req);
}
return retval;
}
static QEMUSGList *megasas_get_sg_list(SCSIRequest *req)
{
MegasasCmd *cmd = req->hba_private;
if (cmd->frame->header.frame_cmd == MFI_CMD_DCMD) {
return NULL;
} else {
return &cmd->qsg;
}
}
static void megasas_xfer_complete(SCSIRequest *req, uint32_t len)
{
MegasasCmd *cmd = req->hba_private;
uint8_t *buf;
uint32_t opcode;
trace_megasas_io_complete(cmd->index, len);
if (cmd->frame->header.frame_cmd != MFI_CMD_DCMD) {
scsi_req_continue(req);
return;
}
buf = scsi_req_get_buf(req);
opcode = le32_to_cpu(cmd->frame->dcmd.opcode);
if (opcode == MFI_DCMD_PD_GET_INFO && cmd->iov_buf) {
struct mfi_pd_info *info = cmd->iov_buf;
if (info->inquiry_data[0] == 0x7f) {
memset(info->inquiry_data, 0, sizeof(info->inquiry_data));
memcpy(info->inquiry_data, buf, len);
} else if (info->vpd_page83[0] == 0x7f) {
memset(info->vpd_page83, 0, sizeof(info->vpd_page83));
memcpy(info->vpd_page83, buf, len);
}
scsi_req_continue(req);
} else if (opcode == MFI_DCMD_LD_GET_INFO) {
struct mfi_ld_info *info = cmd->iov_buf;
if (cmd->iov_buf) {
memcpy(info->vpd_page83, buf, sizeof(info->vpd_page83));
scsi_req_continue(req);
}
}
}
static void megasas_command_complete(SCSIRequest *req, uint32_t status,
size_t resid)
{
MegasasCmd *cmd = req->hba_private;
uint8_t cmd_status = MFI_STAT_OK;
trace_megasas_command_complete(cmd->index, status, resid);
if (cmd->req != req) {
/*
* Internal command complete
*/
cmd_status = megasas_finish_internal_command(cmd, req, resid);
if (cmd_status == MFI_STAT_INVALID_STATUS) {
return;
}
} else {
req->status = status;
trace_megasas_scsi_complete(cmd->index, req->status,
cmd->iov_size, req->cmd.xfer);
if (req->status != GOOD) {
cmd_status = MFI_STAT_SCSI_DONE_WITH_ERROR;
}
if (req->status == CHECK_CONDITION) {
megasas_copy_sense(cmd);
}
megasas_unmap_sgl(cmd);
cmd->frame->header.scsi_status = req->status;
scsi_req_unref(cmd->req);
cmd->req = NULL;
}
cmd->frame->header.cmd_status = cmd_status;
megasas_complete_frame(cmd->state, cmd->context);
}
static void megasas_command_cancel(SCSIRequest *req)
{
MegasasCmd *cmd = req->hba_private;
if (cmd) {
megasas_abort_command(cmd);
} else {
scsi_req_unref(req);
}
}
static int megasas_handle_abort(MegasasState *s, MegasasCmd *cmd)
{
uint64_t abort_ctx = le64_to_cpu(cmd->frame->abort.abort_context);
hwaddr abort_addr, addr_hi, addr_lo;
MegasasCmd *abort_cmd;
addr_hi = le32_to_cpu(cmd->frame->abort.abort_mfi_addr_hi);
addr_lo = le32_to_cpu(cmd->frame->abort.abort_mfi_addr_lo);
abort_addr = ((uint64_t)addr_hi << 32) | addr_lo;
abort_cmd = megasas_lookup_frame(s, abort_addr);
if (!abort_cmd) {
trace_megasas_abort_no_cmd(cmd->index, abort_ctx);
s->event_count++;
return MFI_STAT_OK;
}
if (!megasas_use_queue64(s)) {
abort_ctx &= (uint64_t)0xFFFFFFFF;
}
if (abort_cmd->context != abort_ctx) {
trace_megasas_abort_invalid_context(cmd->index, abort_cmd->index,
abort_cmd->context);
s->event_count++;
return MFI_STAT_ABORT_NOT_POSSIBLE;
}
trace_megasas_abort_frame(cmd->index, abort_cmd->index);
megasas_abort_command(abort_cmd);
if (!s->event_cmd || abort_cmd != s->event_cmd) {
s->event_cmd = NULL;
}
s->event_count++;
return MFI_STAT_OK;
}
static void megasas_handle_frame(MegasasState *s, uint64_t frame_addr,
uint32_t frame_count)
{
uint8_t frame_status = MFI_STAT_INVALID_CMD;
uint64_t frame_context;
MegasasCmd *cmd;
/*
* Always read 64bit context, top bits will be
* masked out if required in megasas_enqueue_frame()
*/
frame_context = megasas_frame_get_context(frame_addr);
cmd = megasas_enqueue_frame(s, frame_addr, frame_context, frame_count);
if (!cmd) {
/* reply queue full */
trace_megasas_frame_busy(frame_addr);
megasas_frame_set_scsi_status(frame_addr, BUSY);
megasas_frame_set_cmd_status(frame_addr, MFI_STAT_SCSI_DONE_WITH_ERROR);
megasas_complete_frame(s, frame_context);
s->event_count++;
return;
}
switch (cmd->frame->header.frame_cmd) {
case MFI_CMD_INIT:
frame_status = megasas_init_firmware(s, cmd);
break;
case MFI_CMD_DCMD:
frame_status = megasas_handle_dcmd(s, cmd);
break;
case MFI_CMD_ABORT:
frame_status = megasas_handle_abort(s, cmd);
break;
case MFI_CMD_PD_SCSI_IO:
frame_status = megasas_handle_scsi(s, cmd, 0);
break;
case MFI_CMD_LD_SCSI_IO:
frame_status = megasas_handle_scsi(s, cmd, 1);
break;
case MFI_CMD_LD_READ:
case MFI_CMD_LD_WRITE:
frame_status = megasas_handle_io(s, cmd);
break;
default:
trace_megasas_unhandled_frame_cmd(cmd->index,
cmd->frame->header.frame_cmd);
s->event_count++;
break;
}
if (frame_status != MFI_STAT_INVALID_STATUS) {
if (cmd->frame) {
cmd->frame->header.cmd_status = frame_status;
} else {
megasas_frame_set_cmd_status(frame_addr, frame_status);
}
megasas_complete_frame(s, cmd->context);
}
}
static uint64_t megasas_mmio_read(void *opaque, hwaddr addr,
unsigned size)
{
MegasasState *s = opaque;
uint32_t retval = 0;
switch (addr) {
case MFI_IDB:
retval = 0;
break;
case MFI_OMSG0:
case MFI_OSP0:
retval = (megasas_use_msix(s) ? MFI_FWSTATE_MSIX_SUPPORTED : 0) |
(s->fw_state & MFI_FWSTATE_MASK) |
((s->fw_sge & 0xff) << 16) |
(s->fw_cmds & 0xFFFF);
break;
case MFI_OSTS:
if (megasas_intr_enabled(s) && s->doorbell) {
retval = MFI_1078_RM | 1;
}
break;
case MFI_OMSK:
retval = s->intr_mask;
break;
case MFI_ODCR0:
retval = s->doorbell;
break;
default:
trace_megasas_mmio_invalid_readl(addr);
break;
}
trace_megasas_mmio_readl(addr, retval);
return retval;
}
static void megasas_mmio_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
{
MegasasState *s = opaque;
PCIDevice *pci_dev = PCI_DEVICE(s);
uint64_t frame_addr;
uint32_t frame_count;
int i;
trace_megasas_mmio_writel(addr, val);
switch (addr) {
case MFI_IDB:
if (val & MFI_FWINIT_ABORT) {
/* Abort all pending cmds */
for (i = 0; i < s->fw_cmds; i++) {
megasas_abort_command(&s->frames[i]);
}
}
if (val & MFI_FWINIT_READY) {
/* move to FW READY */
megasas_soft_reset(s);
}
if (val & MFI_FWINIT_MFIMODE) {
/* discard MFIs */
}
break;
case MFI_OMSK:
s->intr_mask = val;
if (!megasas_intr_enabled(s) &&
!msi_enabled(pci_dev) &&
!msix_enabled(pci_dev)) {
trace_megasas_irq_lower();
pci_irq_deassert(pci_dev);
}
if (megasas_intr_enabled(s)) {
if (msix_enabled(pci_dev)) {
trace_megasas_msix_enabled(0);
} else if (msi_enabled(pci_dev)) {
trace_megasas_msi_enabled(0);
} else {
trace_megasas_intr_enabled();
}
} else {
trace_megasas_intr_disabled();
}
break;
case MFI_ODCR0:
s->doorbell = 0;
if (s->producer_pa && megasas_intr_enabled(s)) {
/* Update reply queue pointer */
trace_megasas_qf_update(s->reply_queue_head, s->busy);
stl_le_phys(&address_space_memory,
s->producer_pa, s->reply_queue_head);
if (!msix_enabled(pci_dev)) {
trace_megasas_irq_lower();
pci_irq_deassert(pci_dev);
}
}
break;
case MFI_IQPH:
/* Received high 32 bits of a 64 bit MFI frame address */
s->frame_hi = val;
break;
case MFI_IQPL:
/* Received low 32 bits of a 64 bit MFI frame address */
case MFI_IQP:
/* Received 32 bit MFI frame address */
frame_addr = (val & ~0x1F);
/* Add possible 64 bit offset */
frame_addr |= ((uint64_t)s->frame_hi << 32);
s->frame_hi = 0;
frame_count = (val >> 1) & 0xF;
megasas_handle_frame(s, frame_addr, frame_count);
break;
default:
trace_megasas_mmio_invalid_writel(addr, val);
break;
}
}
static const MemoryRegionOps megasas_mmio_ops = {
.read = megasas_mmio_read,
.write = megasas_mmio_write,
.endianness = DEVICE_LITTLE_ENDIAN,
.impl = {
.min_access_size = 8,
.max_access_size = 8,
}
};
static uint64_t megasas_port_read(void *opaque, hwaddr addr,
unsigned size)
{
return megasas_mmio_read(opaque, addr & 0xff, size);
}
static void megasas_port_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
{
megasas_mmio_write(opaque, addr & 0xff, val, size);
}
static const MemoryRegionOps megasas_port_ops = {
.read = megasas_port_read,
.write = megasas_port_write,
.endianness = DEVICE_LITTLE_ENDIAN,
.impl = {
.min_access_size = 4,
.max_access_size = 4,
}
};
static uint64_t megasas_queue_read(void *opaque, hwaddr addr,
unsigned size)
{
return 0;
}
static const MemoryRegionOps megasas_queue_ops = {
.read = megasas_queue_read,
.endianness = DEVICE_LITTLE_ENDIAN,
.impl = {
.min_access_size = 8,
.max_access_size = 8,
}
};
static void megasas_soft_reset(MegasasState *s)
{
int i;
MegasasCmd *cmd;
trace_megasas_reset();
for (i = 0; i < s->fw_cmds; i++) {
cmd = &s->frames[i];
megasas_abort_command(cmd);
}
megasas_reset_frames(s);
s->reply_queue_len = s->fw_cmds;
s->reply_queue_pa = 0;
s->consumer_pa = 0;
s->producer_pa = 0;
s->fw_state = MFI_FWSTATE_READY;
s->doorbell = 0;
s->intr_mask = MEGASAS_INTR_DISABLED_MASK;
s->frame_hi = 0;
s->flags &= ~MEGASAS_MASK_USE_QUEUE64;
s->event_count++;
s->boot_event = s->event_count;
}
static void megasas_scsi_reset(DeviceState *dev)
{
MegasasState *s = MEGASAS(dev);
megasas_soft_reset(s);
}
static const VMStateDescription vmstate_megasas = {
.name = "megasas",
.version_id = 0,
.minimum_version_id = 0,
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(parent_obj, MegasasState),
VMSTATE_MSIX(parent_obj, MegasasState),
VMSTATE_INT32(fw_state, MegasasState),
VMSTATE_INT32(intr_mask, MegasasState),
VMSTATE_INT32(doorbell, MegasasState),
VMSTATE_UINT64(reply_queue_pa, MegasasState),
VMSTATE_UINT64(consumer_pa, MegasasState),
VMSTATE_UINT64(producer_pa, MegasasState),
VMSTATE_END_OF_LIST()
}
};
static void megasas_scsi_uninit(PCIDevice *d)
{
MegasasState *s = MEGASAS(d);
if (megasas_use_msix(s)) {
msix_uninit(d, &s->mmio_io, &s->mmio_io);
}
if (megasas_use_msi(s)) {
msi_uninit(d);
}
memory_region_destroy(&s->mmio_io);
memory_region_destroy(&s->port_io);
memory_region_destroy(&s->queue_io);
}
static const struct SCSIBusInfo megasas_scsi_info = {
.tcq = true,
.max_target = MFI_MAX_LD,
.max_lun = 255,
.transfer_data = megasas_xfer_complete,
.get_sg_list = megasas_get_sg_list,
.complete = megasas_command_complete,
.cancel = megasas_command_cancel,
};
static int megasas_scsi_init(PCIDevice *dev)
{
DeviceState *d = DEVICE(dev);
MegasasState *s = MEGASAS(dev);
uint8_t *pci_conf;
int i, bar_type;
Error *err = NULL;
pci_conf = dev->config;
/* PCI latency timer = 0 */
pci_conf[PCI_LATENCY_TIMER] = 0;
/* Interrupt pin 1 */
pci_conf[PCI_INTERRUPT_PIN] = 0x01;
memory_region_init_io(&s->mmio_io, OBJECT(s), &megasas_mmio_ops, s,
"megasas-mmio", 0x4000);
memory_region_init_io(&s->port_io, OBJECT(s), &megasas_port_ops, s,
"megasas-io", 256);
memory_region_init_io(&s->queue_io, OBJECT(s), &megasas_queue_ops, s,
"megasas-queue", 0x40000);
if (megasas_use_msi(s) &&
msi_init(dev, 0x50, 1, true, false)) {
s->flags &= ~MEGASAS_MASK_USE_MSI;
}
if (megasas_use_msix(s) &&
msix_init(dev, 15, &s->mmio_io, 0, 0x2000,
&s->mmio_io, 0, 0x3800, 0x68)) {
s->flags &= ~MEGASAS_MASK_USE_MSIX;
}
bar_type = PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64;
pci_register_bar(dev, 0, bar_type, &s->mmio_io);
pci_register_bar(dev, 2, PCI_BASE_ADDRESS_SPACE_IO, &s->port_io);
pci_register_bar(dev, 3, bar_type, &s->queue_io);
if (megasas_use_msix(s)) {
msix_vector_use(dev, 0);
}
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);
}
if (!s->hba_serial) {
s->hba_serial = g_strdup(MEGASAS_HBA_SERIAL);
}
if (s->fw_sge >= MEGASAS_MAX_SGE - MFI_PASS_FRAME_SIZE) {
s->fw_sge = MEGASAS_MAX_SGE - MFI_PASS_FRAME_SIZE;
} else if (s->fw_sge >= 128 - MFI_PASS_FRAME_SIZE) {
s->fw_sge = 128 - MFI_PASS_FRAME_SIZE;
} else {
s->fw_sge = 64 - MFI_PASS_FRAME_SIZE;
}
if (s->fw_cmds > MEGASAS_MAX_FRAMES) {
s->fw_cmds = MEGASAS_MAX_FRAMES;
}
trace_megasas_init(s->fw_sge, s->fw_cmds,
megasas_is_jbod(s) ? "jbod" : "raid");
s->fw_luns = (MFI_MAX_LD > MAX_SCSI_DEVS) ?
MAX_SCSI_DEVS : MFI_MAX_LD;
s->producer_pa = 0;
s->consumer_pa = 0;
for (i = 0; i < s->fw_cmds; i++) {
s->frames[i].index = i;
s->frames[i].context = -1;
s->frames[i].pa = 0;
s->frames[i].state = s;
}
scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev),
&megasas_scsi_info, NULL);
if (!d->hotplugged) {
scsi_bus_legacy_handle_cmdline(&s->bus, &err);
if (err != NULL) {
error_free(err);
return -1;
}
}
return 0;
}
static void
megasas_write_config(PCIDevice *pci, uint32_t addr, uint32_t val, int len)
{
pci_default_write_config(pci, addr, val, len);
msi_write_config(pci, addr, val, len);
}
static Property megasas_properties[] = {
DEFINE_PROP_UINT32("max_sge", MegasasState, fw_sge,
MEGASAS_DEFAULT_SGE),
DEFINE_PROP_UINT32("max_cmds", MegasasState, fw_cmds,
MEGASAS_DEFAULT_FRAMES),
DEFINE_PROP_STRING("hba_serial", MegasasState, hba_serial),
DEFINE_PROP_UINT64("sas_address", MegasasState, sas_addr, 0),
DEFINE_PROP_BIT("use_msi", MegasasState, flags,
MEGASAS_FLAG_USE_MSI, false),
DEFINE_PROP_BIT("use_msix", MegasasState, flags,
MEGASAS_FLAG_USE_MSIX, false),
DEFINE_PROP_BIT("use_jbod", MegasasState, flags,
MEGASAS_FLAG_USE_JBOD, false),
DEFINE_PROP_END_OF_LIST(),
};
static void megasas_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
PCIDeviceClass *pc = PCI_DEVICE_CLASS(oc);
pc->init = megasas_scsi_init;
pc->exit = megasas_scsi_uninit;
pc->vendor_id = PCI_VENDOR_ID_LSI_LOGIC;
pc->device_id = PCI_DEVICE_ID_LSI_SAS1078;
pc->subsystem_vendor_id = PCI_VENDOR_ID_LSI_LOGIC;
pc->subsystem_id = 0x1013;
pc->class_id = PCI_CLASS_STORAGE_RAID;
dc->props = megasas_properties;
dc->reset = megasas_scsi_reset;
dc->vmsd = &vmstate_megasas;
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
dc->desc = "LSI MegaRAID SAS 1078";
pc->config_write = megasas_write_config;
}
static const TypeInfo megasas_info = {
.name = TYPE_MEGASAS,
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(MegasasState),
.class_init = megasas_class_init,
};
static void megasas_register_types(void)
{
type_register_static(&megasas_info);
}
type_init(megasas_register_types)
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