diff options
Diffstat (limited to 'hw/scsi/scsi-disk.c')
| -rw-r--r-- | hw/scsi/scsi-disk.c | 810 |
1 files changed, 496 insertions, 314 deletions
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c index 0e9027c8f3..4bd7af9d0c 100644 --- a/hw/scsi/scsi-disk.c +++ b/hw/scsi/scsi-disk.c @@ -19,28 +19,29 @@ * the host adapter emulator. */ -//#define DEBUG_SCSI - -#ifdef DEBUG_SCSI -#define DPRINTF(fmt, ...) \ -do { printf("scsi-disk: " fmt , ## __VA_ARGS__); } while (0) -#else -#define DPRINTF(fmt, ...) do {} while(0) -#endif - #include "qemu/osdep.h" #include "qemu/units.h" #include "qapi/error.h" #include "qemu/error-report.h" +#include "qemu/main-loop.h" +#include "qemu/module.h" +#include "qemu/hw-version.h" +#include "qemu/memalign.h" #include "hw/scsi/scsi.h" +#include "migration/qemu-file-types.h" +#include "migration/vmstate.h" #include "hw/scsi/emulation.h" #include "scsi/constants.h" -#include "sysemu/sysemu.h" #include "sysemu/block-backend.h" #include "sysemu/blockdev.h" #include "hw/block/block.h" +#include "hw/qdev-properties.h" +#include "hw/qdev-properties-system.h" #include "sysemu/dma.h" +#include "sysemu/sysemu.h" #include "qemu/cutils.h" +#include "trace.h" +#include "qom/object.h" #ifdef __linux #include <scsi/sg.h> @@ -57,23 +58,19 @@ do { printf("scsi-disk: " fmt , ## __VA_ARGS__); } while (0) #define TYPE_SCSI_DISK_BASE "scsi-disk-base" -#define SCSI_DISK_BASE(obj) \ - OBJECT_CHECK(SCSIDiskState, (obj), TYPE_SCSI_DISK_BASE) -#define SCSI_DISK_BASE_CLASS(klass) \ - OBJECT_CLASS_CHECK(SCSIDiskClass, (klass), TYPE_SCSI_DISK_BASE) -#define SCSI_DISK_BASE_GET_CLASS(obj) \ - OBJECT_GET_CLASS(SCSIDiskClass, (obj), TYPE_SCSI_DISK_BASE) +OBJECT_DECLARE_TYPE(SCSIDiskState, SCSIDiskClass, SCSI_DISK_BASE) -typedef struct SCSIDiskClass { +struct SCSIDiskClass { SCSIDeviceClass parent_class; DMAIOFunc *dma_readv; DMAIOFunc *dma_writev; bool (*need_fua_emulation)(SCSICommand *cmd); -} SCSIDiskClass; + void (*update_sense)(SCSIRequest *r); +}; typedef struct SCSIDiskReq { SCSIRequest req; - /* Both sector and sector_count are in terms of qemu 512 byte blocks. */ + /* Both sector and sector_count are in terms of BDRV_SECTOR_SIZE bytes. */ uint64_t sector; uint32_t sector_count; uint32_t buflen; @@ -82,15 +79,13 @@ typedef struct SCSIDiskReq { struct iovec iov; QEMUIOVector qiov; BlockAcctCookie acct; - unsigned char *status; } SCSIDiskReq; #define SCSI_DISK_F_REMOVABLE 0 #define SCSI_DISK_F_DPOFUA 1 #define SCSI_DISK_F_NO_REMOVABLE_DEVOPS 2 -typedef struct SCSIDiskState -{ +struct SCSIDiskState { SCSIDevice qdev; uint32_t features; bool media_changed; @@ -99,11 +94,13 @@ typedef struct SCSIDiskState uint16_t port_index; uint64_t max_unmap_size; uint64_t max_io_size; + uint32_t quirks; QEMUBH *bh; char *version; char *serial; char *vendor; char *product; + char *device_id; bool tray_open; bool tray_locked; /* @@ -114,9 +111,7 @@ typedef struct SCSIDiskState * 0xffff - reserved */ uint16_t rotation_rate; -} SCSIDiskState; - -static bool scsi_handle_rw_error(SCSIDiskReq *r, int error, bool acct_failed); +}; static void scsi_free_request(SCSIRequest *req) { @@ -128,8 +123,8 @@ static void scsi_free_request(SCSIRequest *req) /* Helper function for command completion with sense. */ static void scsi_check_condition(SCSIDiskReq *r, SCSISense sense) { - DPRINTF("Command complete tag=0x%x sense=%d/%d/%d\n", - r->req.tag, sense.key, sense.asc, sense.ascq); + trace_scsi_disk_check_condition(r->req.tag, sense.key, sense.asc, + sense.ascq); scsi_req_build_sense(&r->req, sense); scsi_req_complete(&r->req, CHECK_CONDITION); } @@ -142,7 +137,7 @@ static void scsi_init_iovec(SCSIDiskReq *r, size_t size) r->buflen = size; r->iov.iov_base = blk_blockalign(s->qdev.conf.blk, r->buflen); } - r->iov.iov_len = MIN(r->sector_count * 512, r->buflen); + r->iov.iov_len = MIN(r->sector_count * BDRV_SECTOR_SIZE, r->buflen); qemu_iovec_init_external(&r->qiov, &r->iov, 1); } @@ -187,6 +182,78 @@ static void scsi_disk_load_request(QEMUFile *f, SCSIRequest *req) qemu_iovec_init_external(&r->qiov, &r->iov, 1); } +/* + * scsi_handle_rw_error has two return values. False means that the error + * must be ignored, true means that the error has been processed and the + * caller should not do anything else for this request. Note that + * scsi_handle_rw_error always manages its reference counts, independent + * of the return value. + */ +static bool scsi_handle_rw_error(SCSIDiskReq *r, int ret, bool acct_failed) +{ + bool is_read = (r->req.cmd.mode == SCSI_XFER_FROM_DEV); + SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); + SCSIDiskClass *sdc = (SCSIDiskClass *) object_get_class(OBJECT(s)); + SCSISense sense = SENSE_CODE(NO_SENSE); + int error = 0; + bool req_has_sense = false; + BlockErrorAction action; + int status; + + if (ret < 0) { + status = scsi_sense_from_errno(-ret, &sense); + error = -ret; + } else { + /* A passthrough command has completed with nonzero status. */ + status = ret; + if (status == CHECK_CONDITION) { + req_has_sense = true; + error = scsi_sense_buf_to_errno(r->req.sense, sizeof(r->req.sense)); + } else { + error = EINVAL; + } + } + + /* + * Check whether the error has to be handled by the guest or should + * rather follow the rerror=/werror= settings. Guest-handled errors + * are usually retried immediately, so do not post them to QMP and + * do not account them as failed I/O. + */ + if (req_has_sense && + scsi_sense_buf_is_guest_recoverable(r->req.sense, sizeof(r->req.sense))) { + action = BLOCK_ERROR_ACTION_REPORT; + acct_failed = false; + } else { + action = blk_get_error_action(s->qdev.conf.blk, is_read, error); + blk_error_action(s->qdev.conf.blk, action, is_read, error); + } + + switch (action) { + case BLOCK_ERROR_ACTION_REPORT: + if (acct_failed) { + block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); + } + if (req_has_sense) { + sdc->update_sense(&r->req); + } else if (status == CHECK_CONDITION) { + scsi_req_build_sense(&r->req, sense); + } + scsi_req_complete(&r->req, status); + return true; + + case BLOCK_ERROR_ACTION_IGNORE: + return false; + + case BLOCK_ERROR_ACTION_STOP: + scsi_req_retry(&r->req); + return true; + + default: + g_assert_not_reached(); + } +} + static bool scsi_disk_req_check_error(SCSIDiskReq *r, int ret, bool acct_failed) { if (r->req.io_canceled) { @@ -194,8 +261,8 @@ static bool scsi_disk_req_check_error(SCSIDiskReq *r, int ret, bool acct_failed) return true; } - if (ret < 0 || (r->status && *r->status)) { - return scsi_handle_rw_error(r, -ret, acct_failed); + if (ret < 0) { + return scsi_handle_rw_error(r, ret, acct_failed); } return false; @@ -206,9 +273,13 @@ static void scsi_aio_complete(void *opaque, int ret) SCSIDiskReq *r = (SCSIDiskReq *)opaque; SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); + /* The request must only run in the BlockBackend's AioContext */ + assert(blk_get_aio_context(s->qdev.conf.blk) == + qemu_get_current_aio_context()); + assert(r->req.aiocb != NULL); r->req.aiocb = NULL; - aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); + if (scsi_disk_req_check_error(r, ret, true)) { goto done; } @@ -217,7 +288,6 @@ static void scsi_aio_complete(void *opaque, int ret) scsi_req_complete(&r->req, GOOD); done: - aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); scsi_req_unref(&r->req); } @@ -293,40 +363,52 @@ static void scsi_dma_complete(void *opaque, int ret) assert(r->req.aiocb != NULL); r->req.aiocb = NULL; - aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); if (ret < 0) { block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); } else { block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); } scsi_dma_complete_noio(r, ret); - aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); } -static void scsi_read_complete(void * opaque, int ret) +static void scsi_read_complete_noio(SCSIDiskReq *r, int ret) { - SCSIDiskReq *r = (SCSIDiskReq *)opaque; SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); - int n; + uint32_t n; - assert(r->req.aiocb != NULL); - r->req.aiocb = NULL; - aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); - if (scsi_disk_req_check_error(r, ret, true)) { + /* The request must only run in the BlockBackend's AioContext */ + assert(blk_get_aio_context(s->qdev.conf.blk) == + qemu_get_current_aio_context()); + + assert(r->req.aiocb == NULL); + if (scsi_disk_req_check_error(r, ret, false)) { goto done; } - block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); - DPRINTF("Data ready tag=0x%x len=%zd\n", r->req.tag, r->qiov.size); - - n = r->qiov.size / 512; + n = r->qiov.size / BDRV_SECTOR_SIZE; r->sector += n; r->sector_count -= n; scsi_req_data(&r->req, r->qiov.size); done: scsi_req_unref(&r->req); - aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); +} + +static void scsi_read_complete(void *opaque, int ret) +{ + SCSIDiskReq *r = (SCSIDiskReq *)opaque; + SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); + + assert(r->req.aiocb != NULL); + r->req.aiocb = NULL; + + if (ret < 0) { + block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); + } else { + block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); + trace_scsi_disk_read_complete(r->req.tag, r->qiov.size); + } + scsi_read_complete_noio(r, ret); } /* Actually issue a read to the block device. */ @@ -345,7 +427,7 @@ static void scsi_do_read(SCSIDiskReq *r, int ret) if (r->req.sg) { dma_acct_start(s->qdev.conf.blk, &r->acct, r->req.sg, BLOCK_ACCT_READ); - r->req.resid -= r->req.sg->size; + r->req.residual -= r->req.sg->size; r->req.aiocb = dma_blk_io(blk_get_aio_context(s->qdev.conf.blk), r->req.sg, r->sector << BDRV_SECTOR_BITS, BDRV_SECTOR_SIZE, @@ -371,14 +453,12 @@ static void scsi_do_read_cb(void *opaque, int ret) assert (r->req.aiocb != NULL); r->req.aiocb = NULL; - aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); if (ret < 0) { block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); } else { block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); } scsi_do_read(opaque, ret); - aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); } /* Read more data from scsi device into buffer. */ @@ -388,7 +468,7 @@ static void scsi_read_data(SCSIRequest *req) SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); bool first; - DPRINTF("Read sector_count=%d\n", r->sector_count); + trace_scsi_disk_read_data_count(r->sector_count); if (r->sector_count == 0) { /* This also clears the sense buffer for REQUEST SENSE. */ scsi_req_complete(&r->req, GOOD); @@ -401,13 +481,13 @@ static void scsi_read_data(SCSIRequest *req) /* The request is used as the AIO opaque value, so add a ref. */ scsi_req_ref(&r->req); if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { - DPRINTF("Data transfer direction invalid\n"); - scsi_read_complete(r, -EINVAL); + trace_scsi_disk_read_data_invalid(); + scsi_read_complete_noio(r, -EINVAL); return; } if (!blk_is_available(req->dev->conf.blk)) { - scsi_read_complete(r, -ENOMEDIUM); + scsi_read_complete_noio(r, -ENOMEDIUM); return; } @@ -422,79 +502,21 @@ static void scsi_read_data(SCSIRequest *req) } } -/* - * scsi_handle_rw_error has two return values. False means that the error - * must be ignored, true means that the error has been processed and the - * caller should not do anything else for this request. Note that - * scsi_handle_rw_error always manages its reference counts, independent - * of the return value. - */ -static bool scsi_handle_rw_error(SCSIDiskReq *r, int error, bool acct_failed) -{ - bool is_read = (r->req.cmd.mode == SCSI_XFER_FROM_DEV); - SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); - BlockErrorAction action = blk_get_error_action(s->qdev.conf.blk, - is_read, error); - - if (action == BLOCK_ERROR_ACTION_REPORT) { - if (acct_failed) { - block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); - } - switch (error) { - case 0: - /* A passthrough command has run and has produced sense data; check - * whether the error has to be handled by the guest or should rather - * pause the host. - */ - assert(r->status && *r->status); - error = scsi_sense_buf_to_errno(r->req.sense, sizeof(r->req.sense)); - if (error == ECANCELED || error == EAGAIN || error == ENOTCONN || - error == 0) { - /* These errors are handled by guest. */ - scsi_req_complete(&r->req, *r->status); - return true; - } - break; - case ENOMEDIUM: - scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); - break; - case ENOMEM: - scsi_check_condition(r, SENSE_CODE(TARGET_FAILURE)); - break; - case EINVAL: - scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); - break; - case ENOSPC: - scsi_check_condition(r, SENSE_CODE(SPACE_ALLOC_FAILED)); - break; - default: - scsi_check_condition(r, SENSE_CODE(IO_ERROR)); - break; - } - } - - blk_error_action(s->qdev.conf.blk, action, is_read, error); - if (action == BLOCK_ERROR_ACTION_IGNORE) { - scsi_req_complete(&r->req, 0); - return true; - } - - if (action == BLOCK_ERROR_ACTION_STOP) { - scsi_req_retry(&r->req); - } - return true; -} - static void scsi_write_complete_noio(SCSIDiskReq *r, int ret) { + SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); uint32_t n; + /* The request must only run in the BlockBackend's AioContext */ + assert(blk_get_aio_context(s->qdev.conf.blk) == + qemu_get_current_aio_context()); + assert (r->req.aiocb == NULL); if (scsi_disk_req_check_error(r, ret, false)) { goto done; } - n = r->qiov.size / 512; + n = r->qiov.size / BDRV_SECTOR_SIZE; r->sector += n; r->sector_count -= n; if (r->sector_count == 0) { @@ -502,7 +524,7 @@ static void scsi_write_complete_noio(SCSIDiskReq *r, int ret) return; } else { scsi_init_iovec(r, SCSI_DMA_BUF_SIZE); - DPRINTF("Write complete tag=0x%x more=%zd\n", r->req.tag, r->qiov.size); + trace_scsi_disk_write_complete_noio(r->req.tag, r->qiov.size); scsi_req_data(&r->req, r->qiov.size); } @@ -518,14 +540,12 @@ static void scsi_write_complete(void * opaque, int ret) assert (r->req.aiocb != NULL); r->req.aiocb = NULL; - aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); if (ret < 0) { block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct); } else { block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); } scsi_write_complete_noio(r, ret); - aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); } static void scsi_write_data(SCSIRequest *req) @@ -540,7 +560,7 @@ static void scsi_write_data(SCSIRequest *req) /* The request is used as the AIO opaque value, so add a ref. */ scsi_req_ref(&r->req); if (r->req.cmd.mode != SCSI_XFER_TO_DEV) { - DPRINTF("Data transfer direction invalid\n"); + trace_scsi_disk_write_data_invalid(); scsi_write_complete_noio(r, -EINVAL); return; } @@ -568,7 +588,7 @@ static void scsi_write_data(SCSIRequest *req) if (r->req.sg) { dma_acct_start(s->qdev.conf.blk, &r->acct, r->req.sg, BLOCK_ACCT_WRITE); - r->req.resid -= r->req.sg->size; + r->req.residual -= r->req.sg->size; r->req.aiocb = dma_blk_io(blk_get_aio_context(s->qdev.conf.blk), r->req.sg, r->sector << BDRV_SECTOR_BITS, BDRV_SECTOR_SIZE, @@ -605,8 +625,7 @@ static int scsi_disk_emulate_vpd_page(SCSIRequest *req, uint8_t *outbuf) switch (page_code) { case 0x00: /* Supported page codes, mandatory */ { - DPRINTF("Inquiry EVPD[Supported pages] " - "buffer size %zd\n", req->cmd.xfer); + trace_scsi_disk_emulate_vpd_page_00(req->cmd.xfer); outbuf[buflen++] = 0x00; /* list of supported pages (this page) */ if (s->serial) { outbuf[buflen++] = 0x80; /* unit serial number */ @@ -624,7 +643,7 @@ static int scsi_disk_emulate_vpd_page(SCSIRequest *req, uint8_t *outbuf) int l; if (!s->serial) { - DPRINTF("Inquiry (EVPD[Serial number] not supported\n"); + trace_scsi_disk_emulate_vpd_page_80_not_supported(); return -1; } @@ -633,8 +652,7 @@ static int scsi_disk_emulate_vpd_page(SCSIRequest *req, uint8_t *outbuf) l = 36; } - DPRINTF("Inquiry EVPD[Serial number] " - "buffer size %zd\n", req->cmd.xfer); + trace_scsi_disk_emulate_vpd_page_80(req->cmd.xfer); memcpy(outbuf + buflen, s->serial, l); buflen += l; break; @@ -642,22 +660,18 @@ static int scsi_disk_emulate_vpd_page(SCSIRequest *req, uint8_t *outbuf) case 0x83: /* Device identification page, mandatory */ { - const char *str = s->serial ?: blk_name(s->qdev.conf.blk); - int max_len = s->serial ? 20 : 255 - 8; - int id_len = strlen(str); + int id_len = s->device_id ? MIN(strlen(s->device_id), 255 - 8) : 0; - if (id_len > max_len) { - id_len = max_len; - } - DPRINTF("Inquiry EVPD[Device identification] " - "buffer size %zd\n", req->cmd.xfer); + trace_scsi_disk_emulate_vpd_page_83(req->cmd.xfer); - outbuf[buflen++] = 0x2; /* ASCII */ - outbuf[buflen++] = 0; /* not officially assigned */ - outbuf[buflen++] = 0; /* reserved */ - outbuf[buflen++] = id_len; /* length of data following */ - memcpy(outbuf + buflen, str, id_len); - buflen += id_len; + if (id_len) { + outbuf[buflen++] = 0x2; /* ASCII */ + outbuf[buflen++] = 0; /* not officially assigned */ + outbuf[buflen++] = 0; /* reserved */ + outbuf[buflen++] = id_len; /* length of data following */ + memcpy(outbuf + buflen, s->device_id, id_len); + buflen += id_len; + } if (s->qdev.wwn) { outbuf[buflen++] = 0x1; /* Binary */ @@ -695,8 +709,7 @@ static int scsi_disk_emulate_vpd_page(SCSIRequest *req, uint8_t *outbuf) SCSIBlockLimits bl = {}; if (s->qdev.type == TYPE_ROM) { - DPRINTF("Inquiry (EVPD[%02X] not supported for CDROM\n", - page_code); + trace_scsi_disk_emulate_vpd_page_b0_not_supported(); return -1; } bl.wsnz = 1; @@ -1071,17 +1084,20 @@ static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, int page_control) { static const int mode_sense_valid[0x3f] = { + [MODE_PAGE_VENDOR_SPECIFIC] = (1 << TYPE_DISK) | (1 << TYPE_ROM), [MODE_PAGE_HD_GEOMETRY] = (1 << TYPE_DISK), [MODE_PAGE_FLEXIBLE_DISK_GEOMETRY] = (1 << TYPE_DISK), [MODE_PAGE_CACHING] = (1 << TYPE_DISK) | (1 << TYPE_ROM), [MODE_PAGE_R_W_ERROR] = (1 << TYPE_DISK) | (1 << TYPE_ROM), [MODE_PAGE_AUDIO_CTL] = (1 << TYPE_ROM), [MODE_PAGE_CAPABILITIES] = (1 << TYPE_ROM), + [MODE_PAGE_APPLE_VENDOR] = (1 << TYPE_ROM), }; uint8_t *p = *p_outbuf + 2; int length; + assert(page < ARRAY_SIZE(mode_sense_valid)); if ((mode_sense_valid[page] & (1 << s->qdev.type)) == 0) { return -1; } @@ -1177,6 +1193,10 @@ static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, case MODE_PAGE_R_W_ERROR: length = 10; if (page_control == 1) { /* Changeable Values */ + if (s->qdev.type == TYPE_ROM) { + /* Automatic Write Reallocation Enabled */ + p[0] = 0x80; + } break; } p[0] = 0x80; /* Automatic Write Reallocation Enabled */ @@ -1220,6 +1240,36 @@ static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, p[19] = (16 * 176) & 0xff; break; + case MODE_PAGE_APPLE_VENDOR: + if (s->quirks & (1 << SCSI_DISK_QUIRK_MODE_PAGE_APPLE_VENDOR)) { + length = 0x1e; + if (page_control == 1) { /* Changeable Values */ + break; + } + + memset(p, 0, length); + strcpy((char *)p + 8, "APPLE COMPUTER, INC "); + break; + } else { + return -1; + } + + case MODE_PAGE_VENDOR_SPECIFIC: + if (s->qdev.type == TYPE_DISK && (s->quirks & + (1 << SCSI_DISK_QUIRK_MODE_PAGE_VENDOR_SPECIFIC_APPLE))) { + length = 0x2; + if (page_control == 1) { /* Changeable Values */ + p[0] = 0xff; + p[1] = 0xff; + break; + } + p[0] = 0; + p[1] = 0; + break; + } else { + return -1; + } + default: return -1; } @@ -1243,21 +1293,39 @@ static int scsi_disk_emulate_mode_sense(SCSIDiskReq *r, uint8_t *outbuf) dbd = (r->req.cmd.buf[1] & 0x8) != 0; page = r->req.cmd.buf[2] & 0x3f; page_control = (r->req.cmd.buf[2] & 0xc0) >> 6; - DPRINTF("Mode Sense(%d) (page %d, xfer %zd, page_control %d)\n", - (r->req.cmd.buf[0] == MODE_SENSE) ? 6 : 10, page, r->req.cmd.xfer, page_control); + + trace_scsi_disk_emulate_mode_sense((r->req.cmd.buf[0] == MODE_SENSE) ? 6 : + 10, page, r->req.cmd.xfer, page_control); memset(outbuf, 0, r->req.cmd.xfer); p = outbuf; if (s->qdev.type == TYPE_DISK) { dev_specific_param = s->features & (1 << SCSI_DISK_F_DPOFUA) ? 0x10 : 0; - if (blk_is_read_only(s->qdev.conf.blk)) { + if (!blk_is_writable(s->qdev.conf.blk)) { dev_specific_param |= 0x80; /* Readonly. */ } } else { - /* MMC prescribes that CD/DVD drives have no block descriptors, - * and defines no device-specific parameter. */ - dev_specific_param = 0x00; - dbd = true; + if (s->quirks & (1 << SCSI_DISK_QUIRK_MODE_SENSE_ROM_USE_DBD)) { + /* Use DBD from the request... */ + dev_specific_param = 0x00; + + /* + * ... unless we receive a request for MODE_PAGE_APPLE_VENDOR + * which should never return a block descriptor even though DBD is + * not set, otherwise CDROM detection fails in MacOS + */ + if (s->quirks & (1 << SCSI_DISK_QUIRK_MODE_PAGE_APPLE_VENDOR) && + page == MODE_PAGE_APPLE_VENDOR) { + dbd = true; + } + } else { + /* + * MMC prescribes that CD/DVD drives have no block descriptors, + * and defines no device-specific parameter. + */ + dev_specific_param = 0x00; + dbd = true; + } } if (r->req.cmd.buf[0] == MODE_SENSE) { @@ -1279,7 +1347,7 @@ static int scsi_disk_emulate_mode_sense(SCSIDiskReq *r, uint8_t *outbuf) } else { /* MODE_SENSE_10 */ outbuf[7] = 8; /* Block descriptor length */ } - nb_sectors /= (s->qdev.blocksize / 512); + nb_sectors /= (s->qdev.blocksize / BDRV_SECTOR_SIZE); if (nb_sectors > 0xffffff) { nb_sectors = 0; } @@ -1336,8 +1404,8 @@ static int scsi_disk_emulate_read_toc(SCSIRequest *req, uint8_t *outbuf) format = req->cmd.buf[2] & 0xf; start_track = req->cmd.buf[6]; blk_get_geometry(s->qdev.conf.blk, &nb_sectors); - DPRINTF("Read TOC (track %d format %d msf %d)\n", start_track, format, msf >> 1); - nb_sectors /= s->qdev.blocksize / 512; + trace_scsi_disk_emulate_read_toc(start_track, format, msf >> 1); + nb_sectors /= s->qdev.blocksize / BDRV_SECTOR_SIZE; switch (format) { case 0: toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); @@ -1395,7 +1463,7 @@ static void scsi_disk_emulate_read_data(SCSIRequest *req) int buflen = r->iov.iov_len; if (buflen) { - DPRINTF("Read buf_len=%d\n", buflen); + trace_scsi_disk_emulate_read_data(buflen); r->iov.iov_len = 0; r->started = true; scsi_req_data(&r->req, buflen); @@ -1422,6 +1490,11 @@ static int scsi_disk_check_mode_select(SCSIDiskState *s, int page, return -1; } + /* MODE_PAGE_ALLS is only valid for MODE SENSE commands */ + if (page == MODE_PAGE_ALLS) { + return -1; + } + p = mode_current; memset(mode_current, 0, inlen + 2); len = mode_sense_page(s, page, &p, 0); @@ -1488,7 +1561,10 @@ static int mode_select_pages(SCSIDiskReq *r, uint8_t *p, int len, bool change) goto invalid_param; } if (page_len > len) { - goto invalid_param_len; + if (!(s->quirks & SCSI_DISK_QUIRK_MODE_PAGE_TRUNCATED)) { + goto invalid_param_len; + } + trace_scsi_disk_mode_select_page_truncated(page, page_len, len); } if (!change) { @@ -1520,12 +1596,15 @@ static void scsi_disk_emulate_mode_select(SCSIDiskReq *r, uint8_t *inbuf) int cmd = r->req.cmd.buf[0]; int len = r->req.cmd.xfer; int hdr_len = (cmd == MODE_SELECT ? 4 : 8); - int bd_len; + int bd_len, bs; int pass; - /* We only support PF=1, SP=0. */ if ((r->req.cmd.buf[1] & 0x11) != 0x10) { - goto invalid_field; + if (!(s->quirks & + (1 << SCSI_DISK_QUIRK_MODE_PAGE_VENDOR_SPECIFIC_APPLE))) { + /* We only support PF=1, SP=0. */ + goto invalid_field; + } } if (len < hdr_len) { @@ -1542,6 +1621,23 @@ static void scsi_disk_emulate_mode_select(SCSIDiskReq *r, uint8_t *inbuf) goto invalid_param; } + /* Allow changing the block size */ + if (bd_len) { + bs = p[5] << 16 | p[6] << 8 | p[7]; + + /* + * Since the existing code only checks/updates bits 8-15 of the block + * size, restrict ourselves to the same requirement for now to ensure + * that a block size set by a block descriptor and then read back by + * a subsequent SCSI command will be the same. Also disallow a block + * size of 256 since we cannot handle anything below BDRV_SECTOR_SIZE. + */ + if (bs && !(bs & ~0xfe00) && bs != s->qdev.blocksize) { + s->qdev.blocksize = bs; + trace_scsi_disk_mode_select_set_blocksize(s->qdev.blocksize); + } + } + len -= bd_len; p += bd_len; @@ -1576,6 +1672,7 @@ invalid_field: scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); } +/* sector_num and nb_sectors expected to be in qdev blocksize */ static inline bool check_lba_range(SCSIDiskState *s, uint64_t sector_num, uint32_t nb_sectors) { @@ -1604,25 +1701,29 @@ static void scsi_unmap_complete_noio(UnmapCBData *data, int ret) { SCSIDiskReq *r = data->r; SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); - uint64_t sector_num; - uint32_t nb_sectors; assert(r->req.aiocb == NULL); - if (scsi_disk_req_check_error(r, ret, false)) { - goto done; - } if (data->count > 0) { - sector_num = ldq_be_p(&data->inbuf[0]); - nb_sectors = ldl_be_p(&data->inbuf[8]) & 0xffffffffULL; + uint64_t sector_num = ldq_be_p(&data->inbuf[0]); + uint32_t nb_sectors = ldl_be_p(&data->inbuf[8]) & 0xffffffffULL; + r->sector = sector_num * (s->qdev.blocksize / BDRV_SECTOR_SIZE); + r->sector_count = nb_sectors * (s->qdev.blocksize / BDRV_SECTOR_SIZE); + if (!check_lba_range(s, sector_num, nb_sectors)) { + block_acct_invalid(blk_get_stats(s->qdev.conf.blk), + BLOCK_ACCT_UNMAP); scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); goto done; } + block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, + r->sector_count * BDRV_SECTOR_SIZE, + BLOCK_ACCT_UNMAP); + r->req.aiocb = blk_aio_pdiscard(s->qdev.conf.blk, - sector_num * s->qdev.blocksize, - nb_sectors * s->qdev.blocksize, + r->sector * BDRV_SECTOR_SIZE, + r->sector_count * BDRV_SECTOR_SIZE, scsi_unmap_complete, data); data->count--; data->inbuf += 16; @@ -1645,9 +1746,13 @@ static void scsi_unmap_complete(void *opaque, int ret) assert(r->req.aiocb != NULL); r->req.aiocb = NULL; - aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); - scsi_unmap_complete_noio(data, ret); - aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); + if (scsi_disk_req_check_error(r, ret, true)) { + scsi_req_unref(&r->req); + g_free(data); + } else { + block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); + scsi_unmap_complete_noio(data, ret); + } } static void scsi_disk_emulate_unmap(SCSIDiskReq *r, uint8_t *inbuf) @@ -1675,7 +1780,8 @@ static void scsi_disk_emulate_unmap(SCSIDiskReq *r, uint8_t *inbuf) goto invalid_param_len; } - if (blk_is_read_only(s->qdev.conf.blk)) { + if (!blk_is_writable(s->qdev.conf.blk)) { + block_acct_invalid(blk_get_stats(s->qdev.conf.blk), BLOCK_ACCT_UNMAP); scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); return; } @@ -1691,10 +1797,12 @@ static void scsi_disk_emulate_unmap(SCSIDiskReq *r, uint8_t *inbuf) return; invalid_param_len: + block_acct_invalid(blk_get_stats(s->qdev.conf.blk), BLOCK_ACCT_UNMAP); scsi_check_condition(r, SENSE_CODE(INVALID_PARAM_LEN)); return; invalid_field: + block_acct_invalid(blk_get_stats(s->qdev.conf.blk), BLOCK_ACCT_UNMAP); scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); } @@ -1714,16 +1822,17 @@ static void scsi_write_same_complete(void *opaque, int ret) assert(r->req.aiocb != NULL); r->req.aiocb = NULL; - aio_context_acquire(blk_get_aio_context(s->qdev.conf.blk)); + if (scsi_disk_req_check_error(r, ret, true)) { goto done; } block_acct_done(blk_get_stats(s->qdev.conf.blk), &r->acct); - data->nb_sectors -= data->iov.iov_len / 512; - data->sector += data->iov.iov_len / 512; - data->iov.iov_len = MIN(data->nb_sectors * 512, data->iov.iov_len); + data->nb_sectors -= data->iov.iov_len / BDRV_SECTOR_SIZE; + data->sector += data->iov.iov_len / BDRV_SECTOR_SIZE; + data->iov.iov_len = MIN(data->nb_sectors * BDRV_SECTOR_SIZE, + data->iov.iov_len); if (data->iov.iov_len) { block_acct_start(blk_get_stats(s->qdev.conf.blk), &r->acct, data->iov.iov_len, BLOCK_ACCT_WRITE); @@ -1734,7 +1843,6 @@ static void scsi_write_same_complete(void *opaque, int ret) data->sector << BDRV_SECTOR_BITS, &data->qiov, 0, scsi_write_same_complete, data); - aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); return; } @@ -1744,7 +1852,6 @@ done: scsi_req_unref(&r->req); qemu_vfree(data->iov.iov_base); g_free(data); - aio_context_release(blk_get_aio_context(s->qdev.conf.blk)); } static void scsi_disk_emulate_write_same(SCSIDiskReq *r, uint8_t *inbuf) @@ -1754,7 +1861,7 @@ static void scsi_disk_emulate_write_same(SCSIDiskReq *r, uint8_t *inbuf) uint32_t nb_sectors = scsi_data_cdb_xfer(r->req.cmd.buf); WriteSameCBData *data; uint8_t *buf; - int i; + int i, l; /* Fail if PBDATA=1 or LBDATA=1 or ANCHOR=1. */ if (nb_sectors == 0 || (req->cmd.buf[1] & 0x16)) { @@ -1762,7 +1869,7 @@ static void scsi_disk_emulate_write_same(SCSIDiskReq *r, uint8_t *inbuf) return; } - if (blk_is_read_only(s->qdev.conf.blk)) { + if (!blk_is_writable(s->qdev.conf.blk)) { scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); return; } @@ -1788,15 +1895,17 @@ static void scsi_disk_emulate_write_same(SCSIDiskReq *r, uint8_t *inbuf) data = g_new0(WriteSameCBData, 1); data->r = r; - data->sector = r->req.cmd.lba * (s->qdev.blocksize / 512); - data->nb_sectors = nb_sectors * (s->qdev.blocksize / 512); - data->iov.iov_len = MIN(data->nb_sectors * 512, SCSI_WRITE_SAME_MAX); + data->sector = r->req.cmd.lba * (s->qdev.blocksize / BDRV_SECTOR_SIZE); + data->nb_sectors = nb_sectors * (s->qdev.blocksize / BDRV_SECTOR_SIZE); + data->iov.iov_len = MIN(data->nb_sectors * BDRV_SECTOR_SIZE, + SCSI_WRITE_SAME_MAX); data->iov.iov_base = buf = blk_blockalign(s->qdev.conf.blk, data->iov.iov_len); qemu_iovec_init_external(&data->qiov, &data->iov, 1); - for (i = 0; i < data->iov.iov_len; i += s->qdev.blocksize) { - memcpy(&buf[i], inbuf, s->qdev.blocksize); + for (i = 0; i < data->iov.iov_len; i += l) { + l = MIN(s->qdev.blocksize, data->iov.iov_len - i); + memcpy(&buf[i], inbuf, l); } scsi_req_ref(&r->req); @@ -1814,7 +1923,7 @@ static void scsi_disk_emulate_write_data(SCSIRequest *req) if (r->iov.iov_len) { int buflen = r->iov.iov_len; - DPRINTF("Write buf_len=%d\n", buflen); + trace_scsi_disk_emulate_write_data(buflen); r->iov.iov_len = 0; scsi_req_data(&r->req, buflen); return; @@ -1844,6 +1953,10 @@ static void scsi_disk_emulate_write_data(SCSIRequest *req) scsi_disk_emulate_write_same(r, r->iov.iov_base); break; + case FORMAT_UNIT: + scsi_req_complete(&r->req, GOOD); + break; + default: abort(); } @@ -1898,7 +2011,6 @@ static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf) r->iov.iov_base = blk_blockalign(s->qdev.conf.blk, r->buflen); } - buflen = req->cmd.xfer; outbuf = r->iov.iov_base; memset(outbuf, 0, r->buflen); switch (req->cmd.buf[0]) { @@ -1964,7 +2076,7 @@ static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf) if ((req->cmd.buf[8] & 1) == 0 && req->cmd.lba) { goto illegal_request; } - nb_sectors /= s->qdev.blocksize / 512; + nb_sectors /= s->qdev.blocksize / BDRV_SECTOR_SIZE; /* Returned value is the address of the last sector. */ nb_sectors--; /* Remember the new size for read/write sanity checking. */ @@ -2023,7 +2135,7 @@ static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf) case SERVICE_ACTION_IN_16: /* Service Action In subcommands. */ if ((req->cmd.buf[1] & 31) == SAI_READ_CAPACITY_16) { - DPRINTF("SAI READ CAPACITY(16)\n"); + trace_scsi_disk_emulate_command_SAI_16(); memset(outbuf, 0, req->cmd.xfer); blk_get_geometry(s->qdev.conf.blk, &nb_sectors); if (!nb_sectors) { @@ -2033,7 +2145,7 @@ static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf) if ((req->cmd.buf[14] & 1) == 0 && req->cmd.lba) { goto illegal_request; } - nb_sectors /= s->qdev.blocksize / 512; + nb_sectors /= s->qdev.blocksize / BDRV_SECTOR_SIZE; /* Returned value is the address of the last sector. */ nb_sectors--; /* Remember the new size for read/write sanity checking. */ @@ -2061,7 +2173,7 @@ static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf) /* Protection, exponent and lowest lba field left blank. */ break; } - DPRINTF("Unsupported Service Action In\n"); + trace_scsi_disk_emulate_command_SAI_unsupported(); goto illegal_request; case SYNCHRONIZE_CACHE: /* The request is used as the AIO opaque value, so add a ref. */ @@ -2071,37 +2183,39 @@ static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf) r->req.aiocb = blk_aio_flush(s->qdev.conf.blk, scsi_aio_complete, r); return 0; case SEEK_10: - DPRINTF("Seek(10) (sector %" PRId64 ")\n", r->req.cmd.lba); + trace_scsi_disk_emulate_command_SEEK_10(r->req.cmd.lba); if (r->req.cmd.lba > s->qdev.max_lba) { goto illegal_lba; } break; case MODE_SELECT: - DPRINTF("Mode Select(6) (len %lu)\n", (unsigned long)r->req.cmd.xfer); + trace_scsi_disk_emulate_command_MODE_SELECT(r->req.cmd.xfer); break; case MODE_SELECT_10: - DPRINTF("Mode Select(10) (len %lu)\n", (unsigned long)r->req.cmd.xfer); + trace_scsi_disk_emulate_command_MODE_SELECT_10(r->req.cmd.xfer); break; case UNMAP: - DPRINTF("Unmap (len %lu)\n", (unsigned long)r->req.cmd.xfer); + trace_scsi_disk_emulate_command_UNMAP(r->req.cmd.xfer); break; case VERIFY_10: case VERIFY_12: case VERIFY_16: - DPRINTF("Verify (bytchk %d)\n", (req->cmd.buf[1] >> 1) & 3); + trace_scsi_disk_emulate_command_VERIFY((req->cmd.buf[1] >> 1) & 3); if (req->cmd.buf[1] & 6) { goto illegal_request; } break; case WRITE_SAME_10: case WRITE_SAME_16: - DPRINTF("WRITE SAME %d (len %lu)\n", - req->cmd.buf[0] == WRITE_SAME_10 ? 10 : 16, - (unsigned long)r->req.cmd.xfer); + trace_scsi_disk_emulate_command_WRITE_SAME( + req->cmd.buf[0] == WRITE_SAME_10 ? 10 : 16, r->req.cmd.xfer); + break; + case FORMAT_UNIT: + trace_scsi_disk_emulate_command_FORMAT_UNIT(r->req.cmd.xfer); break; default: - DPRINTF("Unknown SCSI command (%2.2x=%s)\n", buf[0], - scsi_command_name(buf[0])); + trace_scsi_disk_emulate_command_UNKNOWN(buf[0], + scsi_command_name(buf[0])); scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE)); return 0; } @@ -2154,7 +2268,7 @@ static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf) case READ_10: case READ_12: case READ_16: - DPRINTF("Read (sector %" PRId64 ", count %u)\n", r->req.cmd.lba, len); + trace_scsi_disk_dma_command_READ(r->req.cmd.lba, len); /* Protection information is not supported. For SCSI versions 2 and * older (as determined by snooping the guest's INQUIRY commands), * there is no RD/WR/VRPROTECT, so skip this check in these versions. @@ -2165,8 +2279,8 @@ static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf) if (!check_lba_range(s, r->req.cmd.lba, len)) { goto illegal_lba; } - r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512); - r->sector_count = len * (s->qdev.blocksize / 512); + r->sector = r->req.cmd.lba * (s->qdev.blocksize / BDRV_SECTOR_SIZE); + r->sector_count = len * (s->qdev.blocksize / BDRV_SECTOR_SIZE); break; case WRITE_6: case WRITE_10: @@ -2175,11 +2289,11 @@ static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf) case WRITE_VERIFY_10: case WRITE_VERIFY_12: case WRITE_VERIFY_16: - if (blk_is_read_only(s->qdev.conf.blk)) { + if (!blk_is_writable(s->qdev.conf.blk)) { scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); return 0; } - DPRINTF("Write %s(sector %" PRId64 ", count %u)\n", + trace_scsi_disk_dma_command_WRITE( (command & 0xe) == 0xe ? "And Verify " : "", r->req.cmd.lba, len); /* fall through */ @@ -2196,8 +2310,8 @@ static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf) if (!check_lba_range(s, r->req.cmd.lba, len)) { goto illegal_lba; } - r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512); - r->sector_count = len * (s->qdev.blocksize / 512); + r->sector = r->req.cmd.lba * (s->qdev.blocksize / BDRV_SECTOR_SIZE); + r->sector_count = len * (s->qdev.blocksize / BDRV_SECTOR_SIZE); break; default: abort(); @@ -2214,9 +2328,9 @@ static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf) } assert(r->iov.iov_len == 0); if (r->req.cmd.mode == SCSI_XFER_TO_DEV) { - return -r->sector_count * 512; + return -r->sector_count * BDRV_SECTOR_SIZE; } else { - return r->sector_count * 512; + return r->sector_count * BDRV_SECTOR_SIZE; } } @@ -2228,7 +2342,8 @@ static void scsi_disk_reset(DeviceState *dev) scsi_device_purge_requests(&s->qdev, SENSE_CODE(RESET)); blk_get_geometry(s->qdev.conf.blk, &nb_sectors); - nb_sectors /= s->qdev.blocksize / 512; + + nb_sectors /= s->qdev.blocksize / BDRV_SECTOR_SIZE; if (nb_sectors) { nb_sectors--; } @@ -2240,6 +2355,20 @@ static void scsi_disk_reset(DeviceState *dev) s->qdev.scsi_version = s->qdev.default_scsi_version; } +static void scsi_disk_drained_begin(void *opaque) +{ + SCSIDiskState *s = opaque; + + scsi_device_drained_begin(&s->qdev); +} + +static void scsi_disk_drained_end(void *opaque) +{ + SCSIDiskState *s = opaque; + + scsi_device_drained_end(&s->qdev); +} + static void scsi_disk_resize_cb(void *opaque) { SCSIDiskState *s = opaque; @@ -2294,16 +2423,19 @@ static bool scsi_cd_is_medium_locked(void *opaque) } static const BlockDevOps scsi_disk_removable_block_ops = { - .change_media_cb = scsi_cd_change_media_cb, + .change_media_cb = scsi_cd_change_media_cb, + .drained_begin = scsi_disk_drained_begin, + .drained_end = scsi_disk_drained_end, .eject_request_cb = scsi_cd_eject_request_cb, - .is_tray_open = scsi_cd_is_tray_open, .is_medium_locked = scsi_cd_is_medium_locked, - - .resize_cb = scsi_disk_resize_cb, + .is_tray_open = scsi_cd_is_tray_open, + .resize_cb = scsi_disk_resize_cb, }; static const BlockDevOps scsi_disk_block_ops = { - .resize_cb = scsi_disk_resize_cb, + .drained_begin = scsi_disk_drained_begin, + .drained_end = scsi_disk_drained_end, + .resize_cb = scsi_disk_resize_cb, }; static void scsi_disk_unit_attention_reported(SCSIDevice *dev) @@ -2318,6 +2450,7 @@ static void scsi_disk_unit_attention_reported(SCSIDevice *dev) static void scsi_realize(SCSIDevice *dev, Error **errp) { SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); + bool read_only; if (!s->qdev.conf.blk) { error_setg(errp, "drive property not set"); @@ -2330,12 +2463,14 @@ static void scsi_realize(SCSIDevice *dev, Error **errp) return; } - blkconf_blocksizes(&s->qdev.conf); + if (!blkconf_blocksizes(&s->qdev.conf, errp)) { + return; + } - if (s->qdev.conf.logical_block_size > - s->qdev.conf.physical_block_size) { - error_setg(errp, - "logical_block_size > physical_block_size not supported"); + if (blk_get_aio_context(s->qdev.conf.blk) != qemu_get_aio_context() && + !s->qdev.hba_supports_iothread) + { + error_setg(errp, "HBA does not support iothreads"); return; } @@ -2344,8 +2479,13 @@ static void scsi_realize(SCSIDevice *dev, Error **errp) return; } } - if (!blkconf_apply_backend_options(&dev->conf, - blk_is_read_only(s->qdev.conf.blk), + + read_only = !blk_supports_write_perm(s->qdev.conf.blk); + if (dev->type == TYPE_ROM) { + read_only = true; + } + + if (!blkconf_apply_backend_options(&dev->conf, read_only, dev->type == TYPE_DISK, errp)) { return; } @@ -2361,6 +2501,16 @@ static void scsi_realize(SCSIDevice *dev, Error **errp) if (!s->vendor) { s->vendor = g_strdup("QEMU"); } + if (!s->device_id) { + if (s->serial) { + s->device_id = g_strdup_printf("%.20s", s->serial); + } else { + const char *str = blk_name(s->qdev.conf.blk); + if (str && *str) { + s->device_id = g_strdup(str); + } + } + } if (blk_is_sg(s->qdev.conf.blk)) { error_setg(errp, "unwanted /dev/sg*"); @@ -2373,19 +2523,31 @@ static void scsi_realize(SCSIDevice *dev, Error **errp) } else { blk_set_dev_ops(s->qdev.conf.blk, &scsi_disk_block_ops, s); } - blk_set_guest_block_size(s->qdev.conf.blk, s->qdev.blocksize); blk_iostatus_enable(s->qdev.conf.blk); + + add_boot_device_lchs(&dev->qdev, NULL, + dev->conf.lcyls, + dev->conf.lheads, + dev->conf.lsecs); +} + +static void scsi_unrealize(SCSIDevice *dev) +{ + del_boot_device_lchs(&dev->qdev, NULL); } static void scsi_hd_realize(SCSIDevice *dev, Error **errp) { SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); + /* can happen for devices without drive. The error message for missing * backend will be issued in scsi_realize */ if (s->qdev.conf.blk) { - blkconf_blocksizes(&s->qdev.conf); + if (!blkconf_blocksizes(&s->qdev.conf, errp)) { + return; + } } s->qdev.blocksize = s->qdev.conf.logical_block_size; s->qdev.type = TYPE_DISK; @@ -2399,16 +2561,21 @@ static void scsi_cd_realize(SCSIDevice *dev, Error **errp) { SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); int ret; + uint32_t blocksize = 2048; if (!dev->conf.blk) { /* Anonymous BlockBackend for an empty drive. As we put it into * dev->conf, qdev takes care of detaching on unplug. */ - dev->conf.blk = blk_new(0, BLK_PERM_ALL); + dev->conf.blk = blk_new(qemu_get_aio_context(), 0, BLK_PERM_ALL); ret = blk_attach_dev(dev->conf.blk, &dev->qdev); assert(ret == 0); } - s->qdev.blocksize = 2048; + if (dev->conf.physical_block_size != 0) { + blocksize = dev->conf.physical_block_size; + } + + s->qdev.blocksize = blocksize; s->qdev.type = TYPE_ROM; s->features |= 1 << SCSI_DISK_F_REMOVABLE; if (!s->product) { @@ -2417,25 +2584,6 @@ static void scsi_cd_realize(SCSIDevice *dev, Error **errp) scsi_realize(&s->qdev, errp); } -static void scsi_disk_realize(SCSIDevice *dev, Error **errp) -{ - DriveInfo *dinfo; - Error *local_err = NULL; - - if (!dev->conf.blk) { - scsi_realize(dev, &local_err); - assert(local_err); - error_propagate(errp, local_err); - return; - } - - dinfo = blk_legacy_dinfo(dev->conf.blk); - if (dinfo && dinfo->media_cd) { - scsi_cd_realize(dev, errp); - } else { - scsi_hd_realize(dev, errp); - } -} static const SCSIReqOps scsi_disk_emulate_reqops = { .size = sizeof(SCSIDiskReq), @@ -2483,6 +2631,7 @@ static const SCSIReqOps *const scsi_disk_reqops_dispatch[256] = { [VERIFY_10] = &scsi_disk_emulate_reqops, [VERIFY_12] = &scsi_disk_emulate_reqops, [VERIFY_16] = &scsi_disk_emulate_reqops, + [FORMAT_UNIT] = &scsi_disk_emulate_reqops, [READ_6] = &scsi_disk_dma_reqops, [READ_10] = &scsi_disk_dma_reqops, @@ -2497,6 +2646,23 @@ static const SCSIReqOps *const scsi_disk_reqops_dispatch[256] = { [WRITE_VERIFY_16] = &scsi_disk_dma_reqops, }; +static void scsi_disk_new_request_dump(uint32_t lun, uint32_t tag, uint8_t *buf) +{ + int i; + int len = scsi_cdb_length(buf); + char *line_buffer, *p; + + assert(len > 0 && len <= 16); + line_buffer = g_malloc(len * 5 + 1); + + for (i = 0, p = line_buffer; i < len; i++) { + p += sprintf(p, " 0x%02x", buf[i]); + } + trace_scsi_disk_new_request(lun, tag, line_buffer); + + g_free(line_buffer); +} + static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun, uint8_t *buf, void *hba_private) { @@ -2512,16 +2678,9 @@ static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun, } req = scsi_req_alloc(ops, &s->qdev, tag, lun, hba_private); -#ifdef DEBUG_SCSI - DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", lun, tag, buf[0]); - { - int i; - for (i = 1; i < scsi_cdb_length(buf); i++) { - printf(" 0x%02x", buf[i]); - } - printf("\n"); + if (trace_event_get_state_backends(TRACE_SCSI_DISK_NEW_REQUEST)) { + scsi_disk_new_request_dump(lun, tag, buf); } -#endif return req; } @@ -2539,7 +2698,7 @@ static int get_device_type(SCSIDiskState *s) cmd[4] = sizeof(buf); ret = scsi_SG_IO_FROM_DEV(s->qdev.conf.blk, cmd, sizeof(cmd), - buf, sizeof(buf)); + buf, sizeof(buf), s->qdev.io_timeout); if (ret < 0) { return -1; } @@ -2616,8 +2775,43 @@ typedef struct SCSIBlockReq { /* CDB passed to SG_IO. */ uint8_t cdb[16]; + BlockCompletionFunc *cb; + void *cb_opaque; } SCSIBlockReq; +static void scsi_block_sgio_complete(void *opaque, int ret) +{ + SCSIBlockReq *req = (SCSIBlockReq *)opaque; + SCSIDiskReq *r = &req->req; + sg_io_hdr_t *io_hdr = &req->io_header; + + if (ret == 0) { + if (io_hdr->host_status != SCSI_HOST_OK) { + scsi_req_complete_failed(&r->req, io_hdr->host_status); + scsi_req_unref(&r->req); + return; + } + + if (io_hdr->driver_status & SG_ERR_DRIVER_TIMEOUT) { + ret = BUSY; + } else { + ret = io_hdr->status; + } + + if (ret > 0) { + if (scsi_handle_rw_error(r, ret, true)) { + scsi_req_unref(&r->req); + return; + } + + /* Ignore error. */ + ret = 0; + } + } + + req->cb(req->cb_opaque, ret); +} + static BlockAIOCB *scsi_block_do_sgio(SCSIBlockReq *req, int64_t offset, QEMUIOVector *iov, int direction, @@ -2693,11 +2887,14 @@ static BlockAIOCB *scsi_block_do_sgio(SCSIBlockReq *req, /* The rest is as in scsi-generic.c. */ io_header->mx_sb_len = sizeof(r->req.sense); io_header->sbp = r->req.sense; - io_header->timeout = UINT_MAX; + io_header->timeout = s->qdev.io_timeout * 1000; io_header->usr_ptr = r; io_header->flags |= SG_FLAG_DIRECT_IO; - - aiocb = blk_aio_ioctl(s->qdev.conf.blk, SG_IO, io_header, cb, opaque); + req->cb = cb; + req->cb_opaque = opaque; + trace_scsi_disk_aio_sgio_command(r->req.tag, req->cdb[0], lba, + nb_logical_blocks, io_header->timeout); + aiocb = blk_aio_ioctl(s->qdev.conf.blk, SG_IO, io_header, scsi_block_sgio_complete, req); assert(aiocb != NULL); return aiocb; } @@ -2811,7 +3008,6 @@ static int32_t scsi_block_dma_command(SCSIRequest *req, uint8_t *buf) return 0; } - r->req.status = &r->io_header.status; return scsi_disk_dma_command(req, buf); } @@ -2842,17 +3038,24 @@ static SCSIRequest *scsi_block_new_request(SCSIDevice *d, uint32_t tag, } static int scsi_block_parse_cdb(SCSIDevice *d, SCSICommand *cmd, - uint8_t *buf, void *hba_private) + uint8_t *buf, size_t buf_len, + void *hba_private) { SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); if (scsi_block_is_passthrough(s, buf)) { - return scsi_bus_parse_cdb(&s->qdev, cmd, buf, hba_private); + return scsi_bus_parse_cdb(&s->qdev, cmd, buf, buf_len, hba_private); } else { - return scsi_req_parse_cdb(&s->qdev, cmd, buf); + return scsi_req_parse_cdb(&s->qdev, cmd, buf, buf_len); } } +static void scsi_block_update_sense(SCSIRequest *req) +{ + SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); + SCSIBlockReq *br = DO_UPCAST(SCSIBlockReq, req, r); + r->req.sense_len = MIN(br->io_header.sb_len_wr, sizeof(r->req.sense)); +} #endif static @@ -2896,13 +3099,16 @@ static const TypeInfo scsi_disk_base_info = { .abstract = true, }; -#define DEFINE_SCSI_DISK_PROPERTIES() \ - DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf), \ - DEFINE_BLOCK_ERROR_PROPERTIES(SCSIDiskState, qdev.conf), \ - DEFINE_PROP_STRING("ver", SCSIDiskState, version), \ - DEFINE_PROP_STRING("serial", SCSIDiskState, serial), \ - DEFINE_PROP_STRING("vendor", SCSIDiskState, vendor), \ - DEFINE_PROP_STRING("product", SCSIDiskState, product) +#define DEFINE_SCSI_DISK_PROPERTIES() \ + DEFINE_PROP_DRIVE_IOTHREAD("drive", SCSIDiskState, qdev.conf.blk), \ + DEFINE_BLOCK_PROPERTIES_BASE(SCSIDiskState, qdev.conf), \ + DEFINE_BLOCK_ERROR_PROPERTIES(SCSIDiskState, qdev.conf), \ + DEFINE_PROP_STRING("ver", SCSIDiskState, version), \ + DEFINE_PROP_STRING("serial", SCSIDiskState, serial), \ + DEFINE_PROP_STRING("vendor", SCSIDiskState, vendor), \ + DEFINE_PROP_STRING("product", SCSIDiskState, product), \ + DEFINE_PROP_STRING("device_id", SCSIDiskState, device_id) + static Property scsi_hd_properties[] = { DEFINE_SCSI_DISK_PROPERTIES(), @@ -2920,6 +3126,9 @@ static Property scsi_hd_properties[] = { DEFINE_PROP_UINT16("rotation_rate", SCSIDiskState, rotation_rate, 0), DEFINE_PROP_INT32("scsi_version", SCSIDiskState, qdev.default_scsi_version, 5), + DEFINE_PROP_BIT("quirk_mode_page_vendor_specific_apple", SCSIDiskState, + quirks, SCSI_DISK_QUIRK_MODE_PAGE_VENDOR_SPECIFIC_APPLE, + 0), DEFINE_BLOCK_CHS_PROPERTIES(SCSIDiskState, qdev.conf), DEFINE_PROP_END_OF_LIST(), }; @@ -2928,7 +3137,7 @@ static const VMStateDescription vmstate_scsi_disk_state = { .name = "scsi-disk", .version_id = 1, .minimum_version_id = 1, - .fields = (VMStateField[]) { + .fields = (const VMStateField[]) { VMSTATE_SCSI_DEVICE(qdev, SCSIDiskState), VMSTATE_BOOL(media_changed, SCSIDiskState), VMSTATE_BOOL(media_event, SCSIDiskState), @@ -2945,10 +3154,11 @@ static void scsi_hd_class_initfn(ObjectClass *klass, void *data) SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); sc->realize = scsi_hd_realize; + sc->unrealize = scsi_unrealize; sc->alloc_req = scsi_new_request; sc->unit_attention_reported = scsi_disk_unit_attention_reported; dc->desc = "virtual SCSI disk"; - dc->props = scsi_hd_properties; + device_class_set_props(dc, scsi_hd_properties); dc->vmsd = &vmstate_scsi_disk_state; } @@ -2967,6 +3177,15 @@ static Property scsi_cd_properties[] = { DEFAULT_MAX_IO_SIZE), DEFINE_PROP_INT32("scsi_version", SCSIDiskState, qdev.default_scsi_version, 5), + DEFINE_PROP_BIT("quirk_mode_page_apple_vendor", SCSIDiskState, quirks, + SCSI_DISK_QUIRK_MODE_PAGE_APPLE_VENDOR, 0), + DEFINE_PROP_BIT("quirk_mode_sense_rom_use_dbd", SCSIDiskState, quirks, + SCSI_DISK_QUIRK_MODE_SENSE_ROM_USE_DBD, 0), + DEFINE_PROP_BIT("quirk_mode_page_vendor_specific_apple", SCSIDiskState, + quirks, SCSI_DISK_QUIRK_MODE_PAGE_VENDOR_SPECIFIC_APPLE, + 0), + DEFINE_PROP_BIT("quirk_mode_page_truncated", SCSIDiskState, quirks, + SCSI_DISK_QUIRK_MODE_PAGE_TRUNCATED, 0), DEFINE_PROP_END_OF_LIST(), }; @@ -2979,7 +3198,7 @@ static void scsi_cd_class_initfn(ObjectClass *klass, void *data) sc->alloc_req = scsi_new_request; sc->unit_attention_reported = scsi_disk_unit_attention_reported; dc->desc = "virtual SCSI CD-ROM"; - dc->props = scsi_cd_properties; + device_class_set_props(dc, scsi_cd_properties); dc->vmsd = &vmstate_scsi_disk_state; } @@ -2991,7 +3210,7 @@ static const TypeInfo scsi_cd_info = { #ifdef __linux__ static Property scsi_block_properties[] = { - DEFINE_BLOCK_ERROR_PROPERTIES(SCSIDiskState, qdev.conf), \ + DEFINE_BLOCK_ERROR_PROPERTIES(SCSIDiskState, qdev.conf), DEFINE_PROP_DRIVE("drive", SCSIDiskState, qdev.conf.blk), DEFINE_PROP_BOOL("share-rw", SCSIDiskState, qdev.conf.share_rw, false), DEFINE_PROP_UINT16("rotation_rate", SCSIDiskState, rotation_rate, 0), @@ -3001,6 +3220,8 @@ static Property scsi_block_properties[] = { DEFAULT_MAX_IO_SIZE), DEFINE_PROP_INT32("scsi_version", SCSIDiskState, qdev.default_scsi_version, -1), + DEFINE_PROP_UINT32("io_timeout", SCSIDiskState, qdev.io_timeout, + DEFAULT_IO_TIMEOUT), DEFINE_PROP_END_OF_LIST(), }; @@ -3015,9 +3236,10 @@ static void scsi_block_class_initfn(ObjectClass *klass, void *data) sc->parse_cdb = scsi_block_parse_cdb; sdc->dma_readv = scsi_block_dma_readv; sdc->dma_writev = scsi_block_dma_writev; + sdc->update_sense = scsi_block_update_sense; sdc->need_fua_emulation = scsi_block_no_fua; dc->desc = "SCSI block device passthrough"; - dc->props = scsi_block_properties; + device_class_set_props(dc, scsi_block_properties); dc->vmsd = &vmstate_scsi_disk_state; } @@ -3028,45 +3250,6 @@ static const TypeInfo scsi_block_info = { }; #endif -static Property scsi_disk_properties[] = { - DEFINE_SCSI_DISK_PROPERTIES(), - DEFINE_PROP_BIT("removable", SCSIDiskState, features, - SCSI_DISK_F_REMOVABLE, false), - DEFINE_PROP_BIT("dpofua", SCSIDiskState, features, - SCSI_DISK_F_DPOFUA, false), - DEFINE_PROP_UINT64("wwn", SCSIDiskState, qdev.wwn, 0), - DEFINE_PROP_UINT64("port_wwn", SCSIDiskState, qdev.port_wwn, 0), - DEFINE_PROP_UINT16("port_index", SCSIDiskState, port_index, 0), - DEFINE_PROP_UINT64("max_unmap_size", SCSIDiskState, max_unmap_size, - DEFAULT_MAX_UNMAP_SIZE), - DEFINE_PROP_UINT64("max_io_size", SCSIDiskState, max_io_size, - DEFAULT_MAX_IO_SIZE), - DEFINE_PROP_INT32("scsi_version", SCSIDiskState, qdev.default_scsi_version, - 5), - DEFINE_PROP_END_OF_LIST(), -}; - -static void scsi_disk_class_initfn(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); - - sc->realize = scsi_disk_realize; - sc->alloc_req = scsi_new_request; - sc->unit_attention_reported = scsi_disk_unit_attention_reported; - dc->fw_name = "disk"; - dc->desc = "virtual SCSI disk or CD-ROM (legacy)"; - dc->reset = scsi_disk_reset; - dc->props = scsi_disk_properties; - dc->vmsd = &vmstate_scsi_disk_state; -} - -static const TypeInfo scsi_disk_info = { - .name = "scsi-disk", - .parent = TYPE_SCSI_DISK_BASE, - .class_init = scsi_disk_class_initfn, -}; - static void scsi_disk_register_types(void) { type_register_static(&scsi_disk_base_info); @@ -3075,7 +3258,6 @@ static void scsi_disk_register_types(void) #ifdef __linux__ type_register_static(&scsi_block_info); #endif - type_register_static(&scsi_disk_info); } type_init(scsi_disk_register_types) |