megasas: LSI Megaraid SAS HBA emulation
This patch adds an emulation for the LSI Megaraid SAS 8708EM2 HBA.
I've tested it to work with Linux, Windows Vista, and Windows7.
Signed-off-by: Hannes Reinecke <hare@suse.de>
[ Squashed trivial changes from Andreas Faerber, rebased over IOMMU
and QBus changes - Paolo ]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/hw/megasas.c b/hw/megasas.c
new file mode 100644
index 0000000..b48836f
--- /dev/null
+++ b/hw/megasas.c
@@ -0,0 +1,2198 @@
+/*
+ * 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.h"
+#include "pci.h"
+#include "dma.h"
+#include "msix.h"
+#include "iov.h"
+#include "scsi.h"
+#include "scsi-defs.h"
+#include "block_int.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_FLAG_USE_JBOD 0
+#define MEGASAS_MASK_USE_JBOD (1 << MEGASAS_FLAG_USE_JBOD)
+#define MEGASAS_FLAG_USE_MSIX 1
+#define MEGASAS_MASK_USE_MSIX (1 << MEGASAS_FLAG_USE_MSIX)
+#define MEGASAS_FLAG_USE_QUEUE64 2
+#define MEGASAS_MASK_USE_QUEUE64 (1 << MEGASAS_FLAG_USE_QUEUE64)
+
+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;
+
+ target_phys_addr_t pa;
+ target_phys_addr_t 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 {
+ PCIDevice dev;
+ 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 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 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_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(frame + offsetof(struct mfi_frame_header, cmd_status), v);
+}
+
+static void megasas_frame_set_scsi_status(unsigned long frame, uint8_t v)
+{
+ stb_phys(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(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;
+ }
+ qemu_sglist_init(&cmd->qsg, iov_count, pci_dma_context(&s->dev));
+ 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;
+ target_phys_addr_t 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;
+}
+
+static uint64_t megasas_gen_sas_addr(uint64_t id)
+{
+ uint64_t addr;
+
+ addr = 0x5001a4aULL << 36;
+ addr |= id & 0xfffffffff;
+
+ return addr;
+}
+
+/*
+ * 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,
+ target_phys_addr_t 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,
+ target_phys_addr_t 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,
+ target_phys_addr_t frame, uint64_t context, int count)
+{
+ MegasasCmd *cmd = NULL;
+ int frame_size = MFI_FRAME_SIZE * 16;
+ target_phys_addr_t 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)
+{
+ 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(s->reply_queue_pa + queue_offset, context);
+ } else {
+ queue_offset = tail * sizeof(uint32_t);
+ stl_le_phys(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(&s->dev)) {
+ trace_megasas_msix_raise(0);
+ msix_notify(&s->dev, 0);
+ } else {
+ trace_megasas_irq_raise();
+ qemu_irq_raise(s->dev.irq[0]);
+ }
+ }
+ } 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_abort(cmd->req, ABORTED_COMMAND);
+ cmd->req = NULL;
+ }
+}
+
+static int megasas_init_firmware(MegasasState *s, MegasasCmd *cmd)
+{
+ uint32_t pa_hi, pa_lo;
+ target_phys_addr_t 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(s->producer_pa);
+ s->reply_queue_tail = ldl_le_phys(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);
+ qemu_sglist_init(&cmd->qsg, 1, pci_dma_context(&s->dev));
+ 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;
+ return;
+}
+
+static int megasas_ctrl_get_info(MegasasState *s, MegasasCmd *cmd)
+{
+ struct mfi_ctrl_info info;
+ size_t dcmd_size = sizeof(info);
+ BusChild *kid;
+ int num_ld_disks = 0;
+
+ QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
+ num_ld_disks++;
+ }
+
+ 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);
+
+ info.host.type = MFI_INFO_HOST_PCIX;
+ info.device.type = MFI_INFO_DEV_SAS3G;
+ info.device.port_count = 2;
+ info.device.port_addr[0] = cpu_to_le64(megasas_gen_sas_addr((uint64_t)s));
+
+ memcpy(info.product_name, "MegaRAID SAS 8708EM2", 20);
+ snprintf(info.serial_number, 32, "QEMU%08lx",
+ (unsigned long)s & 0xFFFFFFFF);
+ 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, __DATE__, 11);
+ memcpy(info.image_component[0].build_time, __TIME__, 8);
+ info.image_component_count = 1;
+ if (s->dev.has_rom) {
+ uint8_t biosver[32];
+ uint8_t *ptr;
+
+ ptr = memory_region_get_ram_ptr(&s->dev.rom);
+ memcpy(biosver, ptr + 0x41, 31);
+ qemu_put_ram_ptr(ptr);
+ 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(megasas_gen_sas_addr((uint64_t)s));
+ 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_gen_sas_addr((uint64_t)sdev));
+ 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_gen_sas_addr((uint64_t)sdev));
+ 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].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_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)
+{
+ qemu_aio_flush();
+ 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)
+{
+ uint8_t *dummy = g_malloc(cmd->iov_size);
+
+ dma_buf_write(dummy, cmd->iov_size, &cmd->qsg);
+
+ trace_megasas_dcmd_dump_frame(0,
+ dummy[0x00], dummy[0x01], dummy[0x02], dummy[0x03],
+ dummy[0x04], dummy[0x05], dummy[0x06], dummy[0x07]);
+ trace_megasas_dcmd_dump_frame(1,
+ dummy[0x08], dummy[0x09], dummy[0x0a], dummy[0x0b],
+ dummy[0x0c], dummy[0x0d], dummy[0x0e], dummy[0x0f]);
+ trace_megasas_dcmd_dump_frame(2,
+ dummy[0x10], dummy[0x11], dummy[0x12], dummy[0x13],
+ dummy[0x14], dummy[0x15], dummy[0x16], dummy[0x17]);
+ trace_megasas_dcmd_dump_frame(3,
+ dummy[0x18], dummy[0x19], dummy[0x1a], dummy[0x1b],
+ dummy[0x1c], dummy[0x1d], dummy[0x1e], dummy[0x1f]);
+ trace_megasas_dcmd_dump_frame(4,
+ dummy[0x20], dummy[0x21], dummy[0x22], dummy[0x23],
+ dummy[0x24], dummy[0x25], dummy[0x26], dummy[0x27]);
+ trace_megasas_dcmd_dump_frame(5,
+ dummy[0x28], dummy[0x29], dummy[0x2a], dummy[0x2b],
+ dummy[0x2c], dummy[0x2d], dummy[0x2e], dummy[0x2f]);
+ trace_megasas_dcmd_dump_frame(6,
+ dummy[0x30], dummy[0x31], dummy[0x32], dummy[0x33],
+ dummy[0x34], dummy[0x35], dummy[0x36], dummy[0x37]);
+ trace_megasas_dcmd_dump_frame(7,
+ dummy[0x38], dummy[0x39], dummy[0x3a], dummy[0x3b],
+ dummy[0x3c], dummy[0x3d], dummy[0x3e], dummy[0x3f]);
+ g_free(dummy);
+ 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_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);
+ target_phys_addr_t 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, target_phys_addr_t 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, target_phys_addr_t addr,
+ uint64_t val, unsigned size)
+{
+ MegasasState *s = opaque;
+ 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) && !msix_enabled(&s->dev)) {
+ trace_megasas_irq_lower();
+ qemu_irq_lower(s->dev.irq[0]);
+ }
+ if (megasas_intr_enabled(s)) {
+ 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(s->producer_pa, s->reply_queue_head);
+ if (!msix_enabled(&s->dev)) {
+ trace_megasas_irq_lower();
+ qemu_irq_lower(s->dev.irq[0]);
+ }
+ }
+ 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, target_phys_addr_t addr,
+ unsigned size)
+{
+ return megasas_mmio_read(opaque, addr & 0xff, size);
+}
+
+static void megasas_port_write(void *opaque, target_phys_addr_t 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, target_phys_addr_t 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 = DO_UPCAST(MegasasState, dev.qdev, dev);
+
+ megasas_soft_reset(s);
+}
+
+static const VMStateDescription vmstate_megasas = {
+ .name = "megasas",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .minimum_version_id_old = 0,
+ .fields = (VMStateField[]) {
+ VMSTATE_PCI_DEVICE(dev, 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 int megasas_scsi_uninit(PCIDevice *d)
+{
+ MegasasState *s = DO_UPCAST(MegasasState, dev, d);
+
+#ifdef USE_MSIX
+ msix_uninit(&s->dev, &s->mmio_io);
+#endif
+ memory_region_destroy(&s->mmio_io);
+ memory_region_destroy(&s->port_io);
+ memory_region_destroy(&s->queue_io);
+ return 0;
+}
+
+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)
+{
+ MegasasState *s = DO_UPCAST(MegasasState, dev, dev);
+ uint8_t *pci_conf;
+ int i, bar_type;
+
+ pci_conf = s->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, &megasas_mmio_ops, s,
+ "megasas-mmio", 0x4000);
+ memory_region_init_io(&s->port_io, &megasas_port_ops, s,
+ "megasas-io", 256);
+ memory_region_init_io(&s->queue_io, &megasas_queue_ops, s,
+ "megasas-queue", 0x40000);
+
+#ifdef USE_MSIX
+ /* MSI-X support is currently broken */
+ if (megasas_use_msix(s) &&
+ msix_init(&s->dev, 15, &s->mmio_io, 0, 0x2000)) {
+ s->flags &= ~MEGASAS_MASK_USE_MSIX;
+ }
+#else
+ s->flags &= ~MEGASAS_MASK_USE_MSIX;
+#endif
+
+ bar_type = PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64;
+ pci_register_bar(&s->dev, 0, bar_type, &s->mmio_io);
+ pci_register_bar(&s->dev, 2, PCI_BASE_ADDRESS_SPACE_IO, &s->port_io);
+ pci_register_bar(&s->dev, 3, bar_type, &s->queue_io);
+
+ if (megasas_use_msix(s)) {
+ msix_vector_use(&s->dev, 0);
+ }
+
+ 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_use_msix(s) ? "MSI-X" : "INTx",
+ 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, &dev->qdev, &megasas_scsi_info);
+ scsi_bus_legacy_handle_cmdline(&s->bus);
+ return 0;
+}
+
+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),
+#ifdef USE_MSIX
+ DEFINE_PROP_BIT("use_msix", MegasasState, flags,
+ MEGASAS_FLAG_USE_MSIX, false),
+#endif
+ 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;
+ dc->desc = "LSI MegaRAID SAS 1078";
+}
+
+static const TypeInfo megasas_info = {
+ .name = "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)
