diff options
Diffstat (limited to 'qemu/hw/scsi/megasas.c')
| -rw-r--r-- | qemu/hw/scsi/megasas.c | 2548 |
1 files changed, 0 insertions, 2548 deletions
diff --git a/qemu/hw/scsi/megasas.c b/qemu/hw/scsi/megasas.c deleted file mode 100644 index a63a58155..000000000 --- a/qemu/hw/scsi/megasas.c +++ /dev/null @@ -1,2548 +0,0 @@ -/* - * 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 "qemu/osdep.h" -#include "hw/hw.h" -#include "hw/pci/pci.h" -#include "sysemu/dma.h" -#include "sysemu/block-backend.h" -#include "hw/pci/msi.h" -#include "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_GEN1 "1.70" -#define MEGASAS_VERSION_GEN2 "1.80" -#define MEGASAS_MAX_FRAMES 2048 /* Firmware limit at 65535 */ -#define MEGASAS_DEFAULT_FRAMES 1000 /* Windows requires this */ -#define MEGASAS_GEN2_DEFAULT_FRAMES 1008 /* 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; - int diag; - int adp_reset; - - 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]; - DECLARE_BITMAP(frame_map, MEGASAS_MAX_FRAMES); - SCSIBus bus; -} MegasasState; - -typedef struct MegasasBaseClass { - PCIDeviceClass parent_class; - const char *product_name; - const char *product_version; - int mmio_bar; - int ioport_bar; - int osts; -} MegasasBaseClass; - -#define TYPE_MEGASAS_BASE "megasas-base" -#define TYPE_MEGASAS_GEN1 "megasas" -#define TYPE_MEGASAS_GEN2 "megasas-gen2" - -#define MEGASAS(obj) \ - OBJECT_CHECK(MegasasState, (obj), TYPE_MEGASAS_BASE) - -#define MEGASAS_DEVICE_CLASS(oc) \ - OBJECT_CLASS_CHECK(MegasasBaseClass, (oc), TYPE_MEGASAS_BASE) -#define MEGASAS_DEVICE_GET_CLASS(oc) \ - OBJECT_GET_CLASS(MegasasBaseClass, (oc), TYPE_MEGASAS_BASE) - -#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(MegasasState *s, - unsigned long frame, uint8_t v) -{ - PCIDevice *pci = &s->parent_obj; - stb_pci_dma(pci, frame + offsetof(struct mfi_frame_header, cmd_status), v); -} - -static void megasas_frame_set_scsi_status(MegasasState *s, - unsigned long frame, uint8_t v) -{ - PCIDevice *pci = &s->parent_obj; - stb_pci_dma(pci, 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(MegasasState *s, - unsigned long frame) -{ - PCIDevice *pci = &s->parent_obj; - return ldq_le_pci_dma(pci, 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) -{ - PCIDevice *pcid = PCI_DEVICE(cmd->state); - 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; - pci_dma_write(pcid, 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 | ((uint64_t)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 void megasas_unmap_frame(MegasasState *s, MegasasCmd *cmd) -{ - PCIDevice *p = PCI_DEVICE(s); - - pci_dma_unmap(p, cmd->frame, cmd->pa_size, 0, 0); - cmd->frame = NULL; - cmd->pa = 0; - clear_bit(cmd->index, s->frame_map); -} - -/* - * This absolutely needs to be locked if - * qemu ever goes multithreaded. - */ -static MegasasCmd *megasas_enqueue_frame(MegasasState *s, - hwaddr frame, uint64_t context, int count) -{ - PCIDevice *pcid = PCI_DEVICE(s); - MegasasCmd *cmd = NULL; - int frame_size = MFI_FRAME_SIZE * 16; - hwaddr frame_size_p = frame_size; - unsigned long index; - - index = 0; - while (index < s->fw_cmds) { - index = find_next_zero_bit(s->frame_map, s->fw_cmds, index); - if (!s->frames[index].pa) - break; - /* Busy frame found */ - trace_megasas_qf_mapped(index); - } - if (index >= s->fw_cmds) { - /* All frames busy */ - trace_megasas_qf_busy(frame); - return NULL; - } - cmd = &s->frames[index]; - set_bit(index, s->frame_map); - trace_megasas_qf_new(index, frame); - - cmd->pa = frame; - /* Map all possible frames */ - cmd->frame = pci_dma_map(pcid, frame, &frame_size_p, 0); - if (frame_size_p != frame_size) { - trace_megasas_qf_map_failed(cmd->index, (unsigned long)frame); - if (cmd->frame) { - megasas_unmap_frame(s, cmd); - } - 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++; - - if (s->consumer_pa) { - s->reply_queue_tail = ldl_le_pci_dma(pcid, s->consumer_pa); - } - trace_megasas_qf_enqueue(cmd->index, cmd->count, cmd->context, - s->reply_queue_head, s->reply_queue_tail, 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. - */ - if (megasas_use_queue64(s)) { - queue_offset = s->reply_queue_head * sizeof(uint64_t); - stq_le_pci_dma(pci_dev, s->reply_queue_pa + queue_offset, context); - } else { - queue_offset = s->reply_queue_head * sizeof(uint32_t); - stl_le_pci_dma(pci_dev, s->reply_queue_pa + queue_offset, context); - } - s->reply_queue_tail = ldl_le_pci_dma(pci_dev, s->consumer_pa); - trace_megasas_qf_complete(context, s->reply_queue_head, - s->reply_queue_tail, s->busy); - } - - if (megasas_intr_enabled(s)) { - /* Update reply queue pointer */ - s->reply_queue_tail = ldl_le_pci_dma(pci_dev, s->consumer_pa); - tail = s->reply_queue_head; - s->reply_queue_head = megasas_next_index(s, tail, s->fw_cmds); - trace_megasas_qf_update(s->reply_queue_head, s->reply_queue_tail, - s->busy); - stl_le_pci_dma(pci_dev, s->producer_pa, s->reply_queue_head); - /* Notify HBA */ - 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 { - s->doorbell++; - if (s->doorbell == 1) { - 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) { - megasas_unmap_frame(s, cmd); - } - } - bitmap_zero(s->frame_map, MEGASAS_MAX_FRAMES); -} - -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) -{ - PCIDevice *pcid = PCI_DEVICE(s); - uint32_t pa_hi, pa_lo; - hwaddr iq_pa, initq_size = sizeof(struct mfi_init_qinfo); - struct mfi_init_qinfo *initq = NULL; - uint32_t flags; - int ret = MFI_STAT_OK; - - if (s->reply_queue_pa) { - trace_megasas_initq_mapped(s->reply_queue_pa); - goto out; - } - 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 = pci_dma_map(pcid, 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_pci_dma(pcid, s->producer_pa); - s->reply_queue_tail = ldl_le_pci_dma(pcid, 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) { - pci_dma_unmap(pcid, 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); - PCIDeviceClass *pci_class = PCI_DEVICE_GET_CLASS(pci_dev); - MegasasBaseClass *base_class = MEGASAS_DEVICE_GET_CLASS(s); - struct mfi_ctrl_info info; - size_t dcmd_size = sizeof(info); - BusChild *kid; - int num_pd_disks = 0; - - 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.pci.vendor = cpu_to_le16(pci_class->vendor_id); - info.pci.device = cpu_to_le16(pci_class->device_id); - info.pci.subvendor = cpu_to_le16(pci_class->subsystem_vendor_id); - info.pci.subdevice = cpu_to_le16(pci_class->subsystem_id); - - /* - * 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 = SCSI_DEVICE(kid->child); - uint16_t pd_id; - - if (num_pd_disks < 8) { - pd_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF); - info.device.port_addr[num_pd_disks] = - cpu_to_le64(megasas_get_sata_addr(pd_id)); - } - num_pd_disks++; - } - - memcpy(info.product_name, base_class->product_name, 24); - snprintf(info.serial_number, 32, "%s", s->hba_serial); - snprintf(info.package_version, 0x60, "%s-QEMU", qemu_hw_version()); - memcpy(info.image_component[0].name, "APP", 3); - snprintf(info.image_component[0].version, 10, "%s-QEMU", - base_class->product_version); - 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 = MFI_MAX_LD; - 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); - if (!megasas_is_jbod(s)) - info.lds_present = cpu_to_le16(num_pd_disks); - info.pd_present = cpu_to_le16(num_pd_disks); - info.pd_disks_present = cpu_to_le16(num_pd_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 = ctz32(MEGASAS_MAX_SECTORS + 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; - - 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 > MFI_MAX_SYS_PDS) { - max_pd_disks = MFI_MAX_SYS_PDS; - } - QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { - SCSIDevice *sdev = SCSI_DEVICE(kid->child); - uint16_t pd_id; - - if (num_pd_disks >= max_pd_disks) - break; - - pd_id = ((sdev->id & 0xFF) << 8) | (sdev->lun & 0xFF); - info.addr[num_pd_disks].device_id = cpu_to_le16(pd_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(pd_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); - uint64_t pd_size; - uint16_t pd_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_malloc0(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(pd_id); - info->state.ddf.pd_type = cpu_to_le16(MFI_PD_DDF_TYPE_IN_VD| - MFI_PD_DDF_TYPE_INTF_SAS); - blk_get_geometry(sdev->conf.blk, &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(pd_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; - uint8_t target_id, lun_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]); - target_id = (pd_id >> 8) & 0xFF; - lun_id = pd_id & 0xFF; - sdev = scsi_device_find(&s->bus, 0, target_id, lun_id); - 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; - 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; - } - - max_ld_disks = (cmd->iov_size - 8) / 16; - if (megasas_is_jbod(s)) { - max_ld_disks = 0; - } - if (max_ld_disks > MFI_MAX_LD) { - max_ld_disks = MFI_MAX_LD; - } - QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { - SCSIDevice *sdev = SCSI_DEVICE(kid->child); - - if (num_ld_disks >= max_ld_disks) { - break; - } - /* Logical device size is in blocks */ - blk_get_geometry(sdev->conf.blk, &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_dcmd_ld_list_query(MegasasState *s, MegasasCmd *cmd) -{ - uint16_t flags; - struct mfi_ld_targetid_list info; - size_t dcmd_size = sizeof(info), resid; - uint32_t num_ld_disks = 0, max_ld_disks = s->fw_luns; - BusChild *kid; - - /* 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) { - max_ld_disks = 0; - } - - memset(&info, 0, dcmd_size); - if (cmd->iov_size < 12) { - trace_megasas_dcmd_invalid_xfer_len(cmd->index, cmd->iov_size, - dcmd_size); - return MFI_STAT_INVALID_PARAMETER; - } - dcmd_size = sizeof(uint32_t) * 2 + 3; - max_ld_disks = cmd->iov_size - dcmd_size; - if (megasas_is_jbod(s)) { - max_ld_disks = 0; - } - if (max_ld_disks > MFI_MAX_LD) { - max_ld_disks = MFI_MAX_LD; - } - QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { - SCSIDevice *sdev = SCSI_DEVICE(kid->child); - - if (num_ld_disks >= max_ld_disks) { - break; - } - info.targetid[num_ld_disks] = sdev->lun; - num_ld_disks++; - dcmd_size++; - } - info.ld_count = cpu_to_le32(num_ld_disks); - info.size = dcmd_size; - 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; - uint16_t sdev_id = ((sdev->id & 0xFF) << 8) | (lun & 0xFF); - uint64_t ld_size; - - if (!cmd->iov_buf) { - cmd->iov_buf = g_malloc0(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 */ - blk_get_geometry(sdev->conf.blk, &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 = SCSI_DEVICE(kid->child); - 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); - blk_get_geometry(sdev->conf.blk, &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; - 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) -{ - blk_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; -} - -/* Some implementations use CLUSTER RESET LD to simulate a device reset */ -static int megasas_cluster_reset_ld(MegasasState *s, MegasasCmd *cmd) -{ - uint16_t target_id; - int i; - - /* mbox0 contains the device index */ - target_id = le16_to_cpu(cmd->frame->dcmd.mbox[0]); - trace_megasas_dcmd_reset_ld(cmd->index, target_id); - for (i = 0; i < s->fw_cmds; i++) { - MegasasCmd *tmp_cmd = &s->frames[i]; - if (tmp_cmd->req && tmp_cmd->req->dev->id == target_id) { - SCSIDevice *d = tmp_cmd->req->dev; - qdev_reset_all(&d->qdev); - } - } - return MFI_STAT_OK; -} - -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; - bool is_write; - struct SCSIDevice *sdev = NULL; - - cdb = cmd->frame->pass.cdb; - - if (is_logical) { - if (cmd->frame->header.target_id >= MFI_MAX_LD || - cmd->frame->header.lun_id != 0) { - 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; - } - } - 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); - if (cmd->iov_size) { - if (is_write) { - trace_megasas_scsi_write_start(cmd->index, cmd->iov_size); - } else { - trace_megasas_scsi_read_start(cmd->index, cmd->iov_size); - } - } else { - trace_megasas_scsi_nodata(cmd->index); - } - megasas_enqueue_req(cmd, is_write); - 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 < MFI_MAX_LD && - cmd->frame->header.lun_id == 0) { - 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_unmap_frame(cmd->state, cmd); - 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(s, 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(s, frame_addr, BUSY); - megasas_frame_set_cmd_status(s, 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(s, frame_addr, frame_status); - } - megasas_unmap_frame(s, cmd); - megasas_complete_frame(s, cmd->context); - } -} - -static uint64_t megasas_mmio_read(void *opaque, hwaddr addr, - unsigned size) -{ - MegasasState *s = opaque; - PCIDevice *pci_dev = PCI_DEVICE(s); - MegasasBaseClass *base_class = MEGASAS_DEVICE_GET_CLASS(s); - uint32_t retval = 0; - - switch (addr) { - case MFI_IDB: - retval = 0; - trace_megasas_mmio_readl("MFI_IDB", retval); - break; - case MFI_OMSG0: - case MFI_OSP0: - retval = (msix_present(pci_dev) ? MFI_FWSTATE_MSIX_SUPPORTED : 0) | - (s->fw_state & MFI_FWSTATE_MASK) | - ((s->fw_sge & 0xff) << 16) | - (s->fw_cmds & 0xFFFF); - trace_megasas_mmio_readl(addr == MFI_OMSG0 ? "MFI_OMSG0" : "MFI_OSP0", - retval); - break; - case MFI_OSTS: - if (megasas_intr_enabled(s) && s->doorbell) { - retval = base_class->osts; - } - trace_megasas_mmio_readl("MFI_OSTS", retval); - break; - case MFI_OMSK: - retval = s->intr_mask; - trace_megasas_mmio_readl("MFI_OMSK", retval); - break; - case MFI_ODCR0: - retval = s->doorbell ? 1 : 0; - trace_megasas_mmio_readl("MFI_ODCR0", retval); - break; - case MFI_DIAG: - retval = s->diag; - trace_megasas_mmio_readl("MFI_DIAG", retval); - break; - case MFI_OSP1: - retval = 15; - trace_megasas_mmio_readl("MFI_OSP1", retval); - break; - default: - trace_megasas_mmio_invalid_readl(addr); - break; - } - return retval; -} - -static int adp_reset_seq[] = {0x00, 0x04, 0x0b, 0x02, 0x07, 0x0d}; - -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; - - switch (addr) { - case MFI_IDB: - trace_megasas_mmio_writel("MFI_IDB", val); - 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 */ - } - if (val & MFI_FWINIT_STOP_ADP) { - /* Terminal error, stop processing */ - s->fw_state = MFI_FWSTATE_FAULT; - } - break; - case MFI_OMSK: - trace_megasas_mmio_writel("MFI_OMSK", val); - 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(); - megasas_soft_reset(s); - } - break; - case MFI_ODCR0: - trace_megasas_mmio_writel("MFI_ODCR0", val); - s->doorbell = 0; - if (megasas_intr_enabled(s)) { - if (!msix_enabled(pci_dev) && !msi_enabled(pci_dev)) { - trace_megasas_irq_lower(); - pci_irq_deassert(pci_dev); - } - } - break; - case MFI_IQPH: - trace_megasas_mmio_writel("MFI_IQPH", val); - /* Received high 32 bits of a 64 bit MFI frame address */ - s->frame_hi = val; - break; - case MFI_IQPL: - trace_megasas_mmio_writel("MFI_IQPL", val); - /* Received low 32 bits of a 64 bit MFI frame address */ - /* Fallthrough */ - case MFI_IQP: - if (addr == MFI_IQP) { - trace_megasas_mmio_writel("MFI_IQP", val); - /* Received 64 bit MFI frame address */ - s->frame_hi = 0; - } - 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; - case MFI_SEQ: - trace_megasas_mmio_writel("MFI_SEQ", val); - /* Magic sequence to start ADP reset */ - if (adp_reset_seq[s->adp_reset] == val) { - s->adp_reset++; - } else { - s->adp_reset = 0; - s->diag = 0; - } - if (s->adp_reset == 6) { - s->diag = MFI_DIAG_WRITE_ENABLE; - } - break; - case MFI_DIAG: - trace_megasas_mmio_writel("MFI_DIAG", val); - /* ADP reset */ - if ((s->diag & MFI_DIAG_WRITE_ENABLE) && - (val & MFI_DIAG_RESET_ADP)) { - s->diag |= MFI_DIAG_RESET_ADP; - megasas_soft_reset(s); - s->adp_reset = 0; - s->diag = 0; - } - 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 void megasas_queue_write(void *opaque, hwaddr addr, - uint64_t val, unsigned size) -{ - return; -} - -static const MemoryRegionOps megasas_queue_ops = { - .read = megasas_queue_read, - .write = megasas_queue_write, - .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(s->fw_state); - for (i = 0; i < s->fw_cmds; i++) { - cmd = &s->frames[i]; - megasas_abort_command(cmd); - } - if (s->fw_state == MFI_FWSTATE_READY) { - BusChild *kid; - - /* - * The EFI firmware doesn't handle UA, - * so we need to clear the Power On/Reset UA - * after the initial reset. - */ - QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) { - SCSIDevice *sdev = SCSI_DEVICE(kid->child); - - sdev->unit_attention = SENSE_CODE(NO_SENSE); - scsi_device_unit_attention_reported(sdev); - } - } - 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_gen1 = { - .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 const VMStateDescription vmstate_megasas_gen2 = { - .name = "megasas-gen2", - .version_id = 0, - .minimum_version_id = 0, - .minimum_version_id_old = 0, - .fields = (VMStateField[]) { - VMSTATE_PCIE_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); - } -} - -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 void megasas_scsi_realize(PCIDevice *dev, Error **errp) -{ - DeviceState *d = DEVICE(dev); - MegasasState *s = MEGASAS(dev); - MegasasBaseClass *b = MEGASAS_DEVICE_GET_CLASS(s); - uint8_t *pci_conf; - int i, bar_type; - - 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, b->mmio_bar, 0x2000, - &s->mmio_io, b->mmio_bar, 0x3800, 0x68)) { - s->flags &= ~MEGASAS_MASK_USE_MSIX; - } - if (pci_is_express(dev)) { - pcie_endpoint_cap_init(dev, 0xa0); - } - - bar_type = PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64; - pci_register_bar(dev, b->ioport_bar, - PCI_BASE_ADDRESS_SPACE_IO, &s->port_io); - pci_register_bar(dev, b->mmio_bar, bar_type, &s->mmio_io); - pci_register_bar(dev, 3, bar_type, &s->queue_io); - - if (megasas_use_msix(s)) { - msix_vector_use(dev, 0); - } - - s->fw_state = MFI_FWSTATE_READY; - 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"); - - if (megasas_is_jbod(s)) { - s->fw_luns = MFI_MAX_SYS_PDS; - } else { - s->fw_luns = 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, errp); - } -} - -static Property megasas_properties_gen1[] = { - 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 Property megasas_properties_gen2[] = { - DEFINE_PROP_UINT32("max_sge", MegasasState, fw_sge, - MEGASAS_DEFAULT_SGE), - DEFINE_PROP_UINT32("max_cmds", MegasasState, fw_cmds, - MEGASAS_GEN2_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, true), - DEFINE_PROP_BIT("use_msix", MegasasState, flags, - MEGASAS_FLAG_USE_MSIX, true), - DEFINE_PROP_BIT("use_jbod", MegasasState, flags, - MEGASAS_FLAG_USE_JBOD, false), - DEFINE_PROP_END_OF_LIST(), -}; - -typedef struct MegasasInfo { - const char *name; - const char *desc; - const char *product_name; - const char *product_version; - uint16_t device_id; - uint16_t subsystem_id; - int ioport_bar; - int mmio_bar; - bool is_express; - int osts; - const VMStateDescription *vmsd; - Property *props; -} MegasasInfo; - -static struct MegasasInfo megasas_devices[] = { - { - .name = TYPE_MEGASAS_GEN1, - .desc = "LSI MegaRAID SAS 1078", - .product_name = "LSI MegaRAID SAS 8708EM2", - .product_version = MEGASAS_VERSION_GEN1, - .device_id = PCI_DEVICE_ID_LSI_SAS1078, - .subsystem_id = 0x1013, - .ioport_bar = 2, - .mmio_bar = 0, - .osts = MFI_1078_RM | 1, - .is_express = false, - .vmsd = &vmstate_megasas_gen1, - .props = megasas_properties_gen1, - },{ - .name = TYPE_MEGASAS_GEN2, - .desc = "LSI MegaRAID SAS 2108", - .product_name = "LSI MegaRAID SAS 9260-8i", - .product_version = MEGASAS_VERSION_GEN2, - .device_id = PCI_DEVICE_ID_LSI_SAS0079, - .subsystem_id = 0x9261, - .ioport_bar = 0, - .mmio_bar = 1, - .osts = MFI_GEN2_RM, - .is_express = true, - .vmsd = &vmstate_megasas_gen2, - .props = megasas_properties_gen2, - } -}; - -static void megasas_class_init(ObjectClass *oc, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(oc); - PCIDeviceClass *pc = PCI_DEVICE_CLASS(oc); - MegasasBaseClass *e = MEGASAS_DEVICE_CLASS(oc); - const MegasasInfo *info = data; - - pc->realize = megasas_scsi_realize; - pc->exit = megasas_scsi_uninit; - pc->vendor_id = PCI_VENDOR_ID_LSI_LOGIC; - pc->device_id = info->device_id; - pc->subsystem_vendor_id = PCI_VENDOR_ID_LSI_LOGIC; - pc->subsystem_id = info->subsystem_id; - pc->class_id = PCI_CLASS_STORAGE_RAID; - pc->is_express = info->is_express; - e->mmio_bar = info->mmio_bar; - e->ioport_bar = info->ioport_bar; - e->osts = info->osts; - e->product_name = info->product_name; - e->product_version = info->product_version; - dc->props = info->props; - dc->reset = megasas_scsi_reset; - dc->vmsd = info->vmsd; - set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); - dc->desc = info->desc; -} - -static const TypeInfo megasas_info = { - .name = TYPE_MEGASAS_BASE, - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(MegasasState), - .class_size = sizeof(MegasasBaseClass), - .abstract = true, -}; - -static void megasas_register_types(void) -{ - int i; - - type_register_static(&megasas_info); - for (i = 0; i < ARRAY_SIZE(megasas_devices); i++) { - const MegasasInfo *info = &megasas_devices[i]; - TypeInfo type_info = {}; - - type_info.name = info->name; - type_info.parent = TYPE_MEGASAS_BASE; - type_info.class_data = (void *)info; - type_info.class_init = megasas_class_init; - - type_register(&type_info); - } -} - -type_init(megasas_register_types) |