/* * 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 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see . */ #include "qemu/osdep.h" #include "hw/pci/pci.h" #include "hw/qdev-properties.h" #include "sysemu/dma.h" #include "sysemu/block-backend.h" #include "sysemu/rtc.h" #include "hw/pci/msi.h" #include "hw/pci/msix.h" #include "qemu/iov.h" #include "qemu/module.h" #include "hw/scsi/scsi.h" #include "scsi/constants.h" #include "trace.h" #include "qapi/error.h" #include "mfi.h" #include "migration/vmstate.h" #include "qom/object.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_QUEUE64 1 #define MEGASAS_MASK_USE_QUEUE64 (1 << MEGASAS_FLAG_USE_QUEUE64) typedef struct MegasasCmd { uint32_t index; uint16_t flags; uint16_t count; uint64_t context; hwaddr pa; hwaddr pa_size; uint32_t dcmd_opcode; union mfi_frame *frame; SCSIRequest *req; QEMUSGList qsg; void *iov_buf; size_t iov_size; size_t iov_offset; struct MegasasState *state; } MegasasCmd; struct MegasasState { /*< private >*/ PCIDevice parent_obj; /*< public >*/ MemoryRegion mmio_io; MemoryRegion port_io; MemoryRegion queue_io; uint32_t frame_hi; uint32_t fw_state; uint32_t fw_sge; uint32_t fw_cmds; uint32_t flags; uint32_t fw_luns; uint32_t intr_mask; uint32_t doorbell; uint32_t busy; uint32_t diag; uint32_t adp_reset; OnOffAuto msi; OnOffAuto msix; MegasasCmd *event_cmd; uint16_t event_locale; int event_class; uint32_t event_count; uint32_t shutdown_event; uint32_t boot_event; uint64_t sas_addr; char *hba_serial; uint64_t reply_queue_pa; void *reply_queue; uint16_t reply_queue_len; uint32_t reply_queue_head; uint32_t 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; }; typedef struct MegasasState MegasasState; struct MegasasBaseClass { PCIDeviceClass parent_class; const char *product_name; const char *product_version; int mmio_bar; int ioport_bar; int osts; }; typedef struct MegasasBaseClass MegasasBaseClass; #define TYPE_MEGASAS_BASE "megasas-base" #define TYPE_MEGASAS_GEN1 "megasas" #define TYPE_MEGASAS_GEN2 "megasas-gen2" DECLARE_OBJ_CHECKERS(MegasasState, MegasasBaseClass, MEGASAS, 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_msix(MegasasState *s) { return s->msix != ON_OFF_AUTO_OFF; } 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, MEMTXATTRS_UNSPECIFIED); } 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, MEMTXATTRS_UNSPECIFIED); } static inline const char *mfi_frame_desc(unsigned int cmd) { static const char *mfi_frame_descs[] = { "MFI init", "LD Read", "LD Write", "LD SCSI", "PD SCSI", "MFI Doorbell", "MFI Abort", "MFI SMP", "MFI Stop" }; if (cmd < ARRAY_SIZE(mfi_frame_descs)) { return mfi_frame_descs[cmd]; } return "Unknown"; } /* * 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; uint64_t val; ldq_le_pci_dma(pci, frame + offsetof(struct mfi_frame_header, context), &val, MEMTXATTRS_UNSPECIFIED); return val; } 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 || iov_count > MEGASAS_MAX_SGE) { trace_megasas_iovec_sgl_overflow(cmd->index, iov_count, MEGASAS_MAX_SGE); return -1; } 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); goto unmap; } else if (cmd->iov_size < iov_size) { trace_megasas_iovec_underflow(cmd->index, iov_size, cmd->iov_size); } cmd->iov_offset = 0; return 0; unmap: qemu_sglist_destroy(&cmd->qsg); return -1; } /* * 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; int frame_sense_len; frame_sense_len = cmd->frame->header.sense_len; if (sense_len > frame_sense_len) { sense_len = frame_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; } stw_be_p(&cdb[3], len); 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; } stq_be_p(&cdb[2], lba); stl_be_p(&cdb[2 + 8], len); } /* * Utility functions */ static uint64_t megasas_fw_time(void) { struct tm curtime; qemu_get_timedate(&curtime, 0); return ((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); } /* * 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 && index < MEGASAS_MAX_FRAMES) { 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); if (cmd->pa_size) { pci_dma_unmap(p, cmd->frame, cmd->pa_size, 0, 0); } cmd->frame = NULL; cmd->pa = 0; cmd->pa_size = 0; qemu_sglist_destroy(&cmd->qsg); 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 = MEGASAS_MAX_SGE * sizeof(union mfi_sgl); 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 (!cmd->frame || 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; cmd->dcmd_opcode = -1; s->busy++; if (s->consumer_pa) { ldl_le_pci_dma(pcid, s->consumer_pa, &s->reply_queue_tail, MEMTXATTRS_UNSPECIFIED); } 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) { const MemTxAttrs attrs = MEMTXATTRS_UNSPECIFIED; 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, attrs); } else { queue_offset = s->reply_queue_head * sizeof(uint32_t); stl_le_pci_dma(pci_dev, s->reply_queue_pa + queue_offset, context, attrs); } ldl_le_pci_dma(pci_dev, s->consumer_pa, &s->reply_queue_tail, attrs); trace_megasas_qf_complete(context, s->reply_queue_head, s->reply_queue_tail, s->busy); } if (megasas_intr_enabled(s)) { /* Update reply queue pointer */ ldl_le_pci_dma(pci_dev, s->consumer_pa, &s->reply_queue_tail, attrs); 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, attrs); /* 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_complete_command(MegasasCmd *cmd) { cmd->iov_size = 0; cmd->iov_offset = 0; cmd->req->hba_private = NULL; scsi_req_unref(cmd->req); cmd->req = NULL; megasas_unmap_frame(cmd->state, cmd); megasas_complete_frame(cmd->state, cmd->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) { /* Never abort internal commands. */ if (cmd->dcmd_opcode != -1) { return; } if (cmd->req != NULL) { scsi_req_cancel(cmd->req); } } static int megasas_init_firmware(MegasasState *s, MegasasCmd *cmd) { const MemTxAttrs attrs = MEMTXATTRS_UNSPECIFIED; 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; ldl_le_pci_dma(pcid, s->producer_pa, &s->reply_queue_head, attrs); s->reply_queue_head %= MEGASAS_MAX_FRAMES; ldl_le_pci_dma(pcid, s->consumer_pa, &s->reply_queue_tail, attrs); s->reply_queue_tail %= MEGASAS_MAX_FRAMES; 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; int iov_count; cmd->flags = le16_to_cpu(cmd->frame->header.flags); iov_count = cmd->frame->header.sge_count; if (!iov_count) { trace_megasas_dcmd_zero_sge(cmd->index); cmd->iov_size = 0; return 0; } else if (iov_count > 1) { trace_megasas_dcmd_invalid_sge(cmd->index, iov_count); cmd->iov_size = 0; return -EINVAL; } 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 0; } static void megasas_finish_dcmd(MegasasCmd *cmd, uint32_t iov_size) { trace_megasas_finish_dcmd(cmd->index, iov_size); 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); } } } 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_GET_CLASS(s); struct mfi_ctrl_info info; size_t dcmd_size = sizeof(info); BusChild *kid; int num_pd_disks = 0; dma_addr_t residual; 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); biosver[31] = 0; 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); dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); cmd->iov_size -= residual; 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); dma_addr_t residual; 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; dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); cmd->iov_size -= residual; 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); dma_addr_t residual; 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; } dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); cmd->iov_size -= residual; 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); dma_addr_t residual; fw_time = cpu_to_le64(megasas_fw_time()); dma_buf_read(&fw_time, dcmd_size, &residual, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); cmd->iov_size -= residual; 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); dma_addr_t residual; 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); dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); cmd->iov_size -= residual; 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; dma_addr_t residual; 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); dma_buf_read(&info, offset, &residual, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); cmd->iov_size -= residual; 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]; size_t len; dma_addr_t residual; 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)); cmd->req = scsi_req_new(sdev, cmd->index, lun, cmdbuf, cmd); if (!cmd->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(cmd->req); if (len > 0) { cmd->iov_size = len; scsi_req_continue(cmd->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)); cmd->req = scsi_req_new(sdev, cmd->index, lun, cmdbuf, cmd); if (!cmd->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(cmd->req); if (len > 0) { cmd->iov_size = len; scsi_req_continue(cmd->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; dma_buf_read(cmd->iov_buf, dcmd_size, &residual, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); cmd->iov_size -= residual; g_free(cmd->iov_buf); cmd->iov_size = dcmd_size - residual; 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); dma_addr_t residual; 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); dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); cmd->iov_size = dcmd_size - residual; 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); dma_addr_t residual; 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); dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); cmd->iov_size = dcmd_size - residual; 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]; ssize_t len; dma_addr_t residual; 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)); cmd->req = scsi_req_new(sdev, cmd->index, lun, cdb, cmd); if (!cmd->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(cmd->req); if (len > 0) { cmd->iov_size = len; scsi_req_continue(cmd->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); dma_buf_read(cmd->iov_buf, dcmd_size, &residual, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); g_free(cmd->iov_buf); cmd->iov_size = dcmd_size - residual; 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] = { 0 }; struct mfi_config_data *info; int num_pd_disks = 0, array_offset, ld_offset; BusChild *kid; dma_addr_t residual; 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); } dma_buf_read(data, info->size, &residual, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); cmd->iov_size -= residual; 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); dma_addr_t residual; 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; dma_buf_read(&info, dcmd_size, &residual, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); cmd->iov_size -= residual; 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(&info, dcmd_size, NULL, &cmd->qsg, MEMTXATTRS_UNSPECIFIED); 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 retval = 0; size_t len; const struct dcmd_cmd_tbl_t *cmdptr = dcmd_cmd_tbl; cmd->dcmd_opcode = le32_to_cpu(cmd->frame->dcmd.opcode); trace_megasas_handle_dcmd(cmd->index, cmd->dcmd_opcode); if (megasas_map_dcmd(s, cmd) < 0) { return MFI_STAT_MEMORY_NOT_AVAILABLE; } while (cmdptr->opcode != -1 && cmdptr->opcode != cmd->dcmd_opcode) { cmdptr++; } len = cmd->iov_size; if (cmdptr->opcode == -1) { trace_megasas_dcmd_unhandled(cmd->index, cmd->dcmd_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, dma_addr_t residual) { int retval = MFI_STAT_OK; int lun = req->lun; trace_megasas_dcmd_internal_finish(cmd->index, cmd->dcmd_opcode, lun); cmd->iov_size -= residual; switch (cmd->dcmd_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, cmd->dcmd_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, int frame_cmd) { uint8_t *cdb; int target_id, lun_id, cdb_len; bool is_write; struct SCSIDevice *sdev = NULL; bool is_logical = (frame_cmd == MFI_CMD_LD_SCSI_IO); cdb = cmd->frame->pass.cdb; target_id = cmd->frame->header.target_id; lun_id = cmd->frame->header.lun_id; cdb_len = cmd->frame->header.cdb_len; if (is_logical) { if (target_id >= MFI_MAX_LD || lun_id != 0) { trace_megasas_scsi_target_not_present( mfi_frame_desc(frame_cmd), is_logical, target_id, lun_id); return MFI_STAT_DEVICE_NOT_FOUND; } } sdev = scsi_device_find(&s->bus, 0, target_id, lun_id); cmd->iov_size = le32_to_cpu(cmd->frame->header.data_len); trace_megasas_handle_scsi(mfi_frame_desc(frame_cmd), is_logical, target_id, lun_id, sdev, cmd->iov_size); if (!sdev || (megasas_is_jbod(s) && is_logical)) { trace_megasas_scsi_target_not_present( mfi_frame_desc(frame_cmd), is_logical, target_id, lun_id); return MFI_STAT_DEVICE_NOT_FOUND; } if (cdb_len > 16) { trace_megasas_scsi_invalid_cdb_len( mfi_frame_desc(frame_cmd), is_logical, target_id, lun_id, 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, lun_id, cdb, cmd); if (!cmd->req) { trace_megasas_scsi_req_alloc_failed( mfi_frame_desc(frame_cmd), target_id, 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, int frame_cmd) { uint32_t lba_count, lba_start_hi, lba_start_lo; uint64_t lba_start; bool is_write = (frame_cmd == MFI_CMD_LD_WRITE); uint8_t cdb[16]; int len; struct SCSIDevice *sdev = NULL; int target_id, lun_id, cdb_len; 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; target_id = cmd->frame->header.target_id; lun_id = cmd->frame->header.lun_id; cdb_len = cmd->frame->header.cdb_len; if (target_id < MFI_MAX_LD && lun_id == 0) { sdev = scsi_device_find(&s->bus, 0, target_id, lun_id); } trace_megasas_handle_io(cmd->index, mfi_frame_desc(frame_cmd), target_id, lun_id, (unsigned long)lba_start, (unsigned long)lba_count); if (!sdev) { trace_megasas_io_target_not_present(cmd->index, mfi_frame_desc(frame_cmd), target_id, lun_id); return MFI_STAT_DEVICE_NOT_FOUND; } if (cdb_len > 16) { trace_megasas_scsi_invalid_cdb_len( mfi_frame_desc(frame_cmd), 1, target_id, lun_id, 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, lun_id, cdb, cmd); if (!cmd->req) { trace_megasas_scsi_req_alloc_failed( mfi_frame_desc(frame_cmd), target_id, 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 QEMUSGList *megasas_get_sg_list(SCSIRequest *req) { MegasasCmd *cmd = req->hba_private; if (cmd->dcmd_opcode != -1) { return NULL; } else { return &cmd->qsg; } } static void megasas_xfer_complete(SCSIRequest *req, uint32_t len) { MegasasCmd *cmd = req->hba_private; uint8_t *buf; trace_megasas_io_complete(cmd->index, len); if (cmd->dcmd_opcode != -1) { scsi_req_continue(req); return; } buf = scsi_req_get_buf(req); if (cmd->dcmd_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 (cmd->dcmd_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, size_t residual) { MegasasCmd *cmd = req->hba_private; uint8_t cmd_status = MFI_STAT_OK; trace_megasas_command_complete(cmd->index, req->status, residual); if (req->io_canceled) { return; } if (cmd->dcmd_opcode != -1) { /* * Internal command complete */ cmd_status = megasas_finish_internal_dcmd(cmd, req, residual); if (cmd_status == MFI_STAT_INVALID_STATUS) { return; } } else { 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); } cmd->frame->header.scsi_status = req->status; } cmd->frame->header.cmd_status = cmd_status; megasas_complete_command(cmd); } static void megasas_command_cancelled(SCSIRequest *req) { MegasasCmd *cmd = req->hba_private; if (!cmd) { return; } cmd->frame->header.cmd_status = MFI_STAT_SCSI_IO_FAILED; megasas_complete_command(cmd); } 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->context, abort_cmd->index); 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; int frame_cmd; 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; } frame_cmd = cmd->frame->header.frame_cmd; switch (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: case MFI_CMD_LD_SCSI_IO: frame_status = megasas_handle_scsi(s, cmd, frame_cmd); break; case MFI_CMD_LD_READ: case MFI_CMD_LD_WRITE: frame_status = megasas_handle_io(s, cmd, frame_cmd); break; default: trace_megasas_unhandled_frame_cmd(cmd->index, 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_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) { if (s->adp_reset == 6) { s->adp_reset = 0; s->diag = MFI_DIAG_WRITE_ENABLE; } } else { s->adp_reset = 0; s->diag = 0; } 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_UINT32(fw_state, MegasasState), VMSTATE_UINT32(intr_mask, MegasasState), VMSTATE_UINT32(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_PCI_DEVICE(parent_obj, MegasasState), VMSTATE_MSIX(parent_obj, MegasasState), VMSTATE_UINT32(fw_state, MegasasState), VMSTATE_UINT32(intr_mask, MegasasState), VMSTATE_UINT32(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); } 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_cancelled, }; static void megasas_scsi_realize(PCIDevice *dev, Error **errp) { MegasasState *s = MEGASAS(dev); MegasasBaseClass *b = MEGASAS_GET_CLASS(s); uint8_t *pci_conf; int i, bar_type; Error *err = NULL; int ret; pci_conf = dev->config; /* PCI latency timer = 0 */ pci_conf[PCI_LATENCY_TIMER] = 0; /* Interrupt pin 1 */ pci_conf[PCI_INTERRUPT_PIN] = 0x01; if (s->msi != ON_OFF_AUTO_OFF) { ret = msi_init(dev, 0x50, 1, true, false, &err); /* Any error other than -ENOTSUP(board's MSI support is broken) * is a programming error */ assert(!ret || ret == -ENOTSUP); if (ret && s->msi == ON_OFF_AUTO_ON) { /* Can't satisfy user's explicit msi=on request, fail */ error_append_hint(&err, "You have to use msi=auto (default) or " "msi=off with this machine type.\n"); error_propagate(errp, err); return; } else if (ret) { /* With msi=auto, we fall back to MSI off silently */ s->msi = ON_OFF_AUTO_OFF; error_free(err); } } 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_msix(s) && msix_init(dev, 15, &s->mmio_io, b->mmio_bar, 0x2000, &s->mmio_io, b->mmio_bar, 0x3800, 0x68, NULL)) { /* TODO: check msix_init's error, and should fail on msix=on */ s->msix = ON_OFF_AUTO_OFF; } 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_dev_bus_num(dev) << 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_init(&s->bus, sizeof(s->bus), DEVICE(dev), &megasas_scsi_info); } 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_ON_OFF_AUTO("msi", MegasasState, msi, ON_OFF_AUTO_AUTO), DEFINE_PROP_ON_OFF_AUTO("msix", MegasasState, msix, ON_OFF_AUTO_AUTO), 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_ON_OFF_AUTO("msi", MegasasState, msi, ON_OFF_AUTO_AUTO), DEFINE_PROP_ON_OFF_AUTO("msix", MegasasState, msix, ON_OFF_AUTO_AUTO), 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; int osts; const VMStateDescription *vmsd; Property *props; InterfaceInfo *interfaces; } 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, .vmsd = &vmstate_megasas_gen1, .props = megasas_properties_gen1, .interfaces = (InterfaceInfo[]) { { INTERFACE_CONVENTIONAL_PCI_DEVICE }, { }, }, },{ .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, .vmsd = &vmstate_megasas_gen2, .props = megasas_properties_gen2, .interfaces = (InterfaceInfo[]) { { INTERFACE_PCIE_DEVICE }, { } }, } }; static void megasas_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); PCIDeviceClass *pc = PCI_DEVICE_CLASS(oc); MegasasBaseClass *e = MEGASAS_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; 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; device_class_set_props(dc, 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_info.interfaces = info->interfaces; type_register(&type_info); } } type_init(megasas_register_types)