root / hw / scsi-disk.c @ 9c17d615
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/*
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|---|---|
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* SCSI Device emulation
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*
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* Copyright (c) 2006 CodeSourcery.
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* Based on code by Fabrice Bellard
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*
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* Written by Paul Brook
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* Modifications:
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* 2009-Dec-12 Artyom Tarasenko : implemented stamdard inquiry for the case
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* when the allocation length of CDB is smaller
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* than 36.
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* 2009-Oct-13 Artyom Tarasenko : implemented the block descriptor in the
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* MODE SENSE response.
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*
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* This code is licensed under the LGPL.
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*
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* Note that this file only handles the SCSI architecture model and device
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* commands. Emulation of interface/link layer protocols is handled by
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* the host adapter emulator.
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*/
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//#define DEBUG_SCSI
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#ifdef DEBUG_SCSI
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#define DPRINTF(fmt, ...) \
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do { printf("scsi-disk: " fmt , ## __VA_ARGS__); } while (0) |
| 27 |
#else
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#define DPRINTF(fmt, ...) do {} while(0) |
| 29 |
#endif
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#include "qemu-common.h" |
| 32 |
#include "qemu/error-report.h" |
| 33 |
#include "scsi.h" |
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#include "scsi-defs.h" |
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#include "sysemu/sysemu.h" |
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#include "sysemu/blockdev.h" |
| 37 |
#include "hw/block-common.h" |
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#include "sysemu/dma.h" |
| 39 |
|
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#ifdef __linux
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#include <scsi/sg.h> |
| 42 |
#endif
|
| 43 |
|
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#define SCSI_DMA_BUF_SIZE 131072 |
| 45 |
#define SCSI_MAX_INQUIRY_LEN 256 |
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#define SCSI_MAX_MODE_LEN 256 |
| 47 |
|
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typedef struct SCSIDiskState SCSIDiskState; |
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|
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typedef struct SCSIDiskReq { |
| 51 |
SCSIRequest req; |
| 52 |
/* Both sector and sector_count are in terms of qemu 512 byte blocks. */
|
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uint64_t sector; |
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uint32_t sector_count; |
| 55 |
uint32_t buflen; |
| 56 |
bool started;
|
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struct iovec iov;
|
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QEMUIOVector qiov; |
| 59 |
BlockAcctCookie acct; |
| 60 |
} SCSIDiskReq; |
| 61 |
|
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#define SCSI_DISK_F_REMOVABLE 0 |
| 63 |
#define SCSI_DISK_F_DPOFUA 1 |
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|
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struct SCSIDiskState
|
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{
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SCSIDevice qdev; |
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uint32_t features; |
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bool media_changed;
|
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bool media_event;
|
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bool eject_request;
|
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uint64_t wwn; |
| 73 |
QEMUBH *bh; |
| 74 |
char *version;
|
| 75 |
char *serial;
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char *vendor;
|
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char *product;
|
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bool tray_open;
|
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bool tray_locked;
|
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}; |
| 81 |
|
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static int scsi_handle_rw_error(SCSIDiskReq *r, int error); |
| 83 |
|
| 84 |
static void scsi_free_request(SCSIRequest *req) |
| 85 |
{
|
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SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
| 87 |
|
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if (r->iov.iov_base) {
|
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qemu_vfree(r->iov.iov_base); |
| 90 |
} |
| 91 |
} |
| 92 |
|
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/* Helper function for command completion with sense. */
|
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static void scsi_check_condition(SCSIDiskReq *r, SCSISense sense) |
| 95 |
{
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DPRINTF("Command complete tag=0x%x sense=%d/%d/%d\n",
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r->req.tag, sense.key, sense.asc, sense.ascq); |
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scsi_req_build_sense(&r->req, sense); |
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scsi_req_complete(&r->req, CHECK_CONDITION); |
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} |
| 101 |
|
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/* Cancel a pending data transfer. */
|
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static void scsi_cancel_io(SCSIRequest *req) |
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{
|
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SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
| 106 |
|
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DPRINTF("Cancel tag=0x%x\n", req->tag);
|
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if (r->req.aiocb) {
|
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bdrv_aio_cancel(r->req.aiocb); |
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|
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/* This reference was left in by scsi_*_data. We take ownership of
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* it the moment scsi_req_cancel is called, independent of whether
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* bdrv_aio_cancel completes the request or not. */
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scsi_req_unref(&r->req); |
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} |
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r->req.aiocb = NULL;
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} |
| 118 |
|
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static uint32_t scsi_init_iovec(SCSIDiskReq *r, size_t size)
|
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{
|
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SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 122 |
|
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if (!r->iov.iov_base) {
|
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r->buflen = size; |
| 125 |
r->iov.iov_base = qemu_blockalign(s->qdev.conf.bs, r->buflen); |
| 126 |
} |
| 127 |
r->iov.iov_len = MIN(r->sector_count * 512, r->buflen);
|
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qemu_iovec_init_external(&r->qiov, &r->iov, 1);
|
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return r->qiov.size / 512; |
| 130 |
} |
| 131 |
|
| 132 |
static void scsi_disk_save_request(QEMUFile *f, SCSIRequest *req) |
| 133 |
{
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SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
| 135 |
|
| 136 |
qemu_put_be64s(f, &r->sector); |
| 137 |
qemu_put_be32s(f, &r->sector_count); |
| 138 |
qemu_put_be32s(f, &r->buflen); |
| 139 |
if (r->buflen) {
|
| 140 |
if (r->req.cmd.mode == SCSI_XFER_TO_DEV) {
|
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qemu_put_buffer(f, r->iov.iov_base, r->iov.iov_len); |
| 142 |
} else if (!req->retry) { |
| 143 |
uint32_t len = r->iov.iov_len; |
| 144 |
qemu_put_be32s(f, &len); |
| 145 |
qemu_put_buffer(f, r->iov.iov_base, r->iov.iov_len); |
| 146 |
} |
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} |
| 148 |
} |
| 149 |
|
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static void scsi_disk_load_request(QEMUFile *f, SCSIRequest *req) |
| 151 |
{
|
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SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
| 153 |
|
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qemu_get_be64s(f, &r->sector); |
| 155 |
qemu_get_be32s(f, &r->sector_count); |
| 156 |
qemu_get_be32s(f, &r->buflen); |
| 157 |
if (r->buflen) {
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scsi_init_iovec(r, r->buflen); |
| 159 |
if (r->req.cmd.mode == SCSI_XFER_TO_DEV) {
|
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qemu_get_buffer(f, r->iov.iov_base, r->iov.iov_len); |
| 161 |
} else if (!r->req.retry) { |
| 162 |
uint32_t len; |
| 163 |
qemu_get_be32s(f, &len); |
| 164 |
r->iov.iov_len = len; |
| 165 |
assert(r->iov.iov_len <= r->buflen); |
| 166 |
qemu_get_buffer(f, r->iov.iov_base, r->iov.iov_len); |
| 167 |
} |
| 168 |
} |
| 169 |
|
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qemu_iovec_init_external(&r->qiov, &r->iov, 1);
|
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} |
| 172 |
|
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static void scsi_aio_complete(void *opaque, int ret) |
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{
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SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
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SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
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assert(r->req.aiocb != NULL);
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r->req.aiocb = NULL;
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bdrv_acct_done(s->qdev.conf.bs, &r->acct); |
| 181 |
|
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if (ret < 0) { |
| 183 |
if (scsi_handle_rw_error(r, -ret)) {
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goto done;
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} |
| 186 |
} |
| 187 |
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scsi_req_complete(&r->req, GOOD); |
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|
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done:
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if (!r->req.io_canceled) {
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scsi_req_unref(&r->req); |
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} |
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} |
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|
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static bool scsi_is_cmd_fua(SCSICommand *cmd) |
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{
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switch (cmd->buf[0]) { |
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case READ_10:
|
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case READ_12:
|
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case READ_16:
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case WRITE_10:
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case WRITE_12:
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case WRITE_16:
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return (cmd->buf[1] & 8) != 0; |
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case VERIFY_10:
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case VERIFY_12:
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case VERIFY_16:
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case WRITE_VERIFY_10:
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case WRITE_VERIFY_12:
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case WRITE_VERIFY_16:
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return true; |
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case READ_6:
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case WRITE_6:
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default:
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return false; |
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} |
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} |
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|
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static void scsi_write_do_fua(SCSIDiskReq *r) |
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{
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SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 225 |
|
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if (scsi_is_cmd_fua(&r->req.cmd)) {
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bdrv_acct_start(s->qdev.conf.bs, &r->acct, 0, BDRV_ACCT_FLUSH);
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r->req.aiocb = bdrv_aio_flush(s->qdev.conf.bs, scsi_aio_complete, r); |
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return;
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} |
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scsi_req_complete(&r->req, GOOD); |
| 233 |
if (!r->req.io_canceled) {
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scsi_req_unref(&r->req); |
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} |
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} |
| 237 |
|
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static void scsi_dma_complete(void *opaque, int ret) |
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{
|
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SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
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SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 242 |
|
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assert(r->req.aiocb != NULL);
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r->req.aiocb = NULL;
|
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bdrv_acct_done(s->qdev.conf.bs, &r->acct); |
| 246 |
|
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if (ret < 0) { |
| 248 |
if (scsi_handle_rw_error(r, -ret)) {
|
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goto done;
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} |
| 251 |
} |
| 252 |
|
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r->sector += r->sector_count; |
| 254 |
r->sector_count = 0;
|
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if (r->req.cmd.mode == SCSI_XFER_TO_DEV) {
|
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scsi_write_do_fua(r); |
| 257 |
return;
|
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} else {
|
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scsi_req_complete(&r->req, GOOD); |
| 260 |
} |
| 261 |
|
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done:
|
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if (!r->req.io_canceled) {
|
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scsi_req_unref(&r->req); |
| 265 |
} |
| 266 |
} |
| 267 |
|
| 268 |
static void scsi_read_complete(void * opaque, int ret) |
| 269 |
{
|
| 270 |
SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
| 271 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 272 |
int n;
|
| 273 |
|
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assert(r->req.aiocb != NULL);
|
| 275 |
r->req.aiocb = NULL;
|
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bdrv_acct_done(s->qdev.conf.bs, &r->acct); |
| 277 |
|
| 278 |
if (ret < 0) { |
| 279 |
if (scsi_handle_rw_error(r, -ret)) {
|
| 280 |
goto done;
|
| 281 |
} |
| 282 |
} |
| 283 |
|
| 284 |
DPRINTF("Data ready tag=0x%x len=%zd\n", r->req.tag, r->qiov.size);
|
| 285 |
|
| 286 |
n = r->qiov.size / 512;
|
| 287 |
r->sector += n; |
| 288 |
r->sector_count -= n; |
| 289 |
scsi_req_data(&r->req, r->qiov.size); |
| 290 |
|
| 291 |
done:
|
| 292 |
if (!r->req.io_canceled) {
|
| 293 |
scsi_req_unref(&r->req); |
| 294 |
} |
| 295 |
} |
| 296 |
|
| 297 |
/* Actually issue a read to the block device. */
|
| 298 |
static void scsi_do_read(void *opaque, int ret) |
| 299 |
{
|
| 300 |
SCSIDiskReq *r = opaque; |
| 301 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 302 |
uint32_t n; |
| 303 |
|
| 304 |
if (r->req.aiocb != NULL) { |
| 305 |
r->req.aiocb = NULL;
|
| 306 |
bdrv_acct_done(s->qdev.conf.bs, &r->acct); |
| 307 |
} |
| 308 |
|
| 309 |
if (ret < 0) { |
| 310 |
if (scsi_handle_rw_error(r, -ret)) {
|
| 311 |
goto done;
|
| 312 |
} |
| 313 |
} |
| 314 |
|
| 315 |
if (r->req.io_canceled) {
|
| 316 |
return;
|
| 317 |
} |
| 318 |
|
| 319 |
/* The request is used as the AIO opaque value, so add a ref. */
|
| 320 |
scsi_req_ref(&r->req); |
| 321 |
|
| 322 |
if (r->req.sg) {
|
| 323 |
dma_acct_start(s->qdev.conf.bs, &r->acct, r->req.sg, BDRV_ACCT_READ); |
| 324 |
r->req.resid -= r->req.sg->size; |
| 325 |
r->req.aiocb = dma_bdrv_read(s->qdev.conf.bs, r->req.sg, r->sector, |
| 326 |
scsi_dma_complete, r); |
| 327 |
} else {
|
| 328 |
n = scsi_init_iovec(r, SCSI_DMA_BUF_SIZE); |
| 329 |
bdrv_acct_start(s->qdev.conf.bs, &r->acct, n * BDRV_SECTOR_SIZE, BDRV_ACCT_READ); |
| 330 |
r->req.aiocb = bdrv_aio_readv(s->qdev.conf.bs, r->sector, &r->qiov, n, |
| 331 |
scsi_read_complete, r); |
| 332 |
} |
| 333 |
|
| 334 |
done:
|
| 335 |
if (!r->req.io_canceled) {
|
| 336 |
scsi_req_unref(&r->req); |
| 337 |
} |
| 338 |
} |
| 339 |
|
| 340 |
/* Read more data from scsi device into buffer. */
|
| 341 |
static void scsi_read_data(SCSIRequest *req) |
| 342 |
{
|
| 343 |
SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
| 344 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 345 |
bool first;
|
| 346 |
|
| 347 |
DPRINTF("Read sector_count=%d\n", r->sector_count);
|
| 348 |
if (r->sector_count == 0) { |
| 349 |
/* This also clears the sense buffer for REQUEST SENSE. */
|
| 350 |
scsi_req_complete(&r->req, GOOD); |
| 351 |
return;
|
| 352 |
} |
| 353 |
|
| 354 |
/* No data transfer may already be in progress */
|
| 355 |
assert(r->req.aiocb == NULL);
|
| 356 |
|
| 357 |
/* The request is used as the AIO opaque value, so add a ref. */
|
| 358 |
scsi_req_ref(&r->req); |
| 359 |
if (r->req.cmd.mode == SCSI_XFER_TO_DEV) {
|
| 360 |
DPRINTF("Data transfer direction invalid\n");
|
| 361 |
scsi_read_complete(r, -EINVAL); |
| 362 |
return;
|
| 363 |
} |
| 364 |
|
| 365 |
if (s->tray_open) {
|
| 366 |
scsi_read_complete(r, -ENOMEDIUM); |
| 367 |
return;
|
| 368 |
} |
| 369 |
|
| 370 |
first = !r->started; |
| 371 |
r->started = true;
|
| 372 |
if (first && scsi_is_cmd_fua(&r->req.cmd)) {
|
| 373 |
bdrv_acct_start(s->qdev.conf.bs, &r->acct, 0, BDRV_ACCT_FLUSH);
|
| 374 |
r->req.aiocb = bdrv_aio_flush(s->qdev.conf.bs, scsi_do_read, r); |
| 375 |
} else {
|
| 376 |
scsi_do_read(r, 0);
|
| 377 |
} |
| 378 |
} |
| 379 |
|
| 380 |
/*
|
| 381 |
* scsi_handle_rw_error has two return values. 0 means that the error
|
| 382 |
* must be ignored, 1 means that the error has been processed and the
|
| 383 |
* caller should not do anything else for this request. Note that
|
| 384 |
* scsi_handle_rw_error always manages its reference counts, independent
|
| 385 |
* of the return value.
|
| 386 |
*/
|
| 387 |
static int scsi_handle_rw_error(SCSIDiskReq *r, int error) |
| 388 |
{
|
| 389 |
bool is_read = (r->req.cmd.xfer == SCSI_XFER_FROM_DEV);
|
| 390 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 391 |
BlockErrorAction action = bdrv_get_error_action(s->qdev.conf.bs, is_read, error); |
| 392 |
|
| 393 |
if (action == BDRV_ACTION_REPORT) {
|
| 394 |
switch (error) {
|
| 395 |
case ENOMEDIUM:
|
| 396 |
scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
| 397 |
break;
|
| 398 |
case ENOMEM:
|
| 399 |
scsi_check_condition(r, SENSE_CODE(TARGET_FAILURE)); |
| 400 |
break;
|
| 401 |
case EINVAL:
|
| 402 |
scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
| 403 |
break;
|
| 404 |
default:
|
| 405 |
scsi_check_condition(r, SENSE_CODE(IO_ERROR)); |
| 406 |
break;
|
| 407 |
} |
| 408 |
} |
| 409 |
bdrv_error_action(s->qdev.conf.bs, action, is_read, error); |
| 410 |
if (action == BDRV_ACTION_STOP) {
|
| 411 |
scsi_req_retry(&r->req); |
| 412 |
} |
| 413 |
return action != BDRV_ACTION_IGNORE;
|
| 414 |
} |
| 415 |
|
| 416 |
static void scsi_write_complete(void * opaque, int ret) |
| 417 |
{
|
| 418 |
SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
| 419 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 420 |
uint32_t n; |
| 421 |
|
| 422 |
if (r->req.aiocb != NULL) { |
| 423 |
r->req.aiocb = NULL;
|
| 424 |
bdrv_acct_done(s->qdev.conf.bs, &r->acct); |
| 425 |
} |
| 426 |
|
| 427 |
if (ret < 0) { |
| 428 |
if (scsi_handle_rw_error(r, -ret)) {
|
| 429 |
goto done;
|
| 430 |
} |
| 431 |
} |
| 432 |
|
| 433 |
n = r->qiov.size / 512;
|
| 434 |
r->sector += n; |
| 435 |
r->sector_count -= n; |
| 436 |
if (r->sector_count == 0) { |
| 437 |
scsi_write_do_fua(r); |
| 438 |
return;
|
| 439 |
} else {
|
| 440 |
scsi_init_iovec(r, SCSI_DMA_BUF_SIZE); |
| 441 |
DPRINTF("Write complete tag=0x%x more=%zd\n", r->req.tag, r->qiov.size);
|
| 442 |
scsi_req_data(&r->req, r->qiov.size); |
| 443 |
} |
| 444 |
|
| 445 |
done:
|
| 446 |
if (!r->req.io_canceled) {
|
| 447 |
scsi_req_unref(&r->req); |
| 448 |
} |
| 449 |
} |
| 450 |
|
| 451 |
static void scsi_write_data(SCSIRequest *req) |
| 452 |
{
|
| 453 |
SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
| 454 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 455 |
uint32_t n; |
| 456 |
|
| 457 |
/* No data transfer may already be in progress */
|
| 458 |
assert(r->req.aiocb == NULL);
|
| 459 |
|
| 460 |
/* The request is used as the AIO opaque value, so add a ref. */
|
| 461 |
scsi_req_ref(&r->req); |
| 462 |
if (r->req.cmd.mode != SCSI_XFER_TO_DEV) {
|
| 463 |
DPRINTF("Data transfer direction invalid\n");
|
| 464 |
scsi_write_complete(r, -EINVAL); |
| 465 |
return;
|
| 466 |
} |
| 467 |
|
| 468 |
if (!r->req.sg && !r->qiov.size) {
|
| 469 |
/* Called for the first time. Ask the driver to send us more data. */
|
| 470 |
r->started = true;
|
| 471 |
scsi_write_complete(r, 0);
|
| 472 |
return;
|
| 473 |
} |
| 474 |
if (s->tray_open) {
|
| 475 |
scsi_write_complete(r, -ENOMEDIUM); |
| 476 |
return;
|
| 477 |
} |
| 478 |
|
| 479 |
if (r->req.cmd.buf[0] == VERIFY_10 || r->req.cmd.buf[0] == VERIFY_12 || |
| 480 |
r->req.cmd.buf[0] == VERIFY_16) {
|
| 481 |
if (r->req.sg) {
|
| 482 |
scsi_dma_complete(r, 0);
|
| 483 |
} else {
|
| 484 |
scsi_write_complete(r, 0);
|
| 485 |
} |
| 486 |
return;
|
| 487 |
} |
| 488 |
|
| 489 |
if (r->req.sg) {
|
| 490 |
dma_acct_start(s->qdev.conf.bs, &r->acct, r->req.sg, BDRV_ACCT_WRITE); |
| 491 |
r->req.resid -= r->req.sg->size; |
| 492 |
r->req.aiocb = dma_bdrv_write(s->qdev.conf.bs, r->req.sg, r->sector, |
| 493 |
scsi_dma_complete, r); |
| 494 |
} else {
|
| 495 |
n = r->qiov.size / 512;
|
| 496 |
bdrv_acct_start(s->qdev.conf.bs, &r->acct, n * BDRV_SECTOR_SIZE, BDRV_ACCT_WRITE); |
| 497 |
r->req.aiocb = bdrv_aio_writev(s->qdev.conf.bs, r->sector, &r->qiov, n, |
| 498 |
scsi_write_complete, r); |
| 499 |
} |
| 500 |
} |
| 501 |
|
| 502 |
/* Return a pointer to the data buffer. */
|
| 503 |
static uint8_t *scsi_get_buf(SCSIRequest *req)
|
| 504 |
{
|
| 505 |
SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
| 506 |
|
| 507 |
return (uint8_t *)r->iov.iov_base;
|
| 508 |
} |
| 509 |
|
| 510 |
static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf) |
| 511 |
{
|
| 512 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
| 513 |
int buflen = 0; |
| 514 |
int start;
|
| 515 |
|
| 516 |
if (req->cmd.buf[1] & 0x1) { |
| 517 |
/* Vital product data */
|
| 518 |
uint8_t page_code = req->cmd.buf[2];
|
| 519 |
|
| 520 |
outbuf[buflen++] = s->qdev.type & 0x1f;
|
| 521 |
outbuf[buflen++] = page_code ; // this page
|
| 522 |
outbuf[buflen++] = 0x00;
|
| 523 |
outbuf[buflen++] = 0x00;
|
| 524 |
start = buflen; |
| 525 |
|
| 526 |
switch (page_code) {
|
| 527 |
case 0x00: /* Supported page codes, mandatory */ |
| 528 |
{
|
| 529 |
DPRINTF("Inquiry EVPD[Supported pages] "
|
| 530 |
"buffer size %zd\n", req->cmd.xfer);
|
| 531 |
outbuf[buflen++] = 0x00; // list of supported pages (this page) |
| 532 |
if (s->serial) {
|
| 533 |
outbuf[buflen++] = 0x80; // unit serial number |
| 534 |
} |
| 535 |
outbuf[buflen++] = 0x83; // device identification |
| 536 |
if (s->qdev.type == TYPE_DISK) {
|
| 537 |
outbuf[buflen++] = 0xb0; // block limits |
| 538 |
outbuf[buflen++] = 0xb2; // thin provisioning |
| 539 |
} |
| 540 |
break;
|
| 541 |
} |
| 542 |
case 0x80: /* Device serial number, optional */ |
| 543 |
{
|
| 544 |
int l;
|
| 545 |
|
| 546 |
if (!s->serial) {
|
| 547 |
DPRINTF("Inquiry (EVPD[Serial number] not supported\n");
|
| 548 |
return -1; |
| 549 |
} |
| 550 |
|
| 551 |
l = strlen(s->serial); |
| 552 |
if (l > 20) { |
| 553 |
l = 20;
|
| 554 |
} |
| 555 |
|
| 556 |
DPRINTF("Inquiry EVPD[Serial number] "
|
| 557 |
"buffer size %zd\n", req->cmd.xfer);
|
| 558 |
memcpy(outbuf+buflen, s->serial, l); |
| 559 |
buflen += l; |
| 560 |
break;
|
| 561 |
} |
| 562 |
|
| 563 |
case 0x83: /* Device identification page, mandatory */ |
| 564 |
{
|
| 565 |
const char *str = s->serial ?: bdrv_get_device_name(s->qdev.conf.bs); |
| 566 |
int max_len = s->serial ? 20 : 255 - 8; |
| 567 |
int id_len = strlen(str);
|
| 568 |
|
| 569 |
if (id_len > max_len) {
|
| 570 |
id_len = max_len; |
| 571 |
} |
| 572 |
DPRINTF("Inquiry EVPD[Device identification] "
|
| 573 |
"buffer size %zd\n", req->cmd.xfer);
|
| 574 |
|
| 575 |
outbuf[buflen++] = 0x2; // ASCII |
| 576 |
outbuf[buflen++] = 0; // not officially assigned |
| 577 |
outbuf[buflen++] = 0; // reserved |
| 578 |
outbuf[buflen++] = id_len; // length of data following
|
| 579 |
memcpy(outbuf+buflen, str, id_len); |
| 580 |
buflen += id_len; |
| 581 |
|
| 582 |
if (s->wwn) {
|
| 583 |
outbuf[buflen++] = 0x1; // Binary |
| 584 |
outbuf[buflen++] = 0x3; // NAA |
| 585 |
outbuf[buflen++] = 0; // reserved |
| 586 |
outbuf[buflen++] = 8;
|
| 587 |
stq_be_p(&outbuf[buflen], s->wwn); |
| 588 |
buflen += 8;
|
| 589 |
} |
| 590 |
break;
|
| 591 |
} |
| 592 |
case 0xb0: /* block limits */ |
| 593 |
{
|
| 594 |
unsigned int unmap_sectors = |
| 595 |
s->qdev.conf.discard_granularity / s->qdev.blocksize; |
| 596 |
unsigned int min_io_size = |
| 597 |
s->qdev.conf.min_io_size / s->qdev.blocksize; |
| 598 |
unsigned int opt_io_size = |
| 599 |
s->qdev.conf.opt_io_size / s->qdev.blocksize; |
| 600 |
|
| 601 |
if (s->qdev.type == TYPE_ROM) {
|
| 602 |
DPRINTF("Inquiry (EVPD[%02X] not supported for CDROM\n",
|
| 603 |
page_code); |
| 604 |
return -1; |
| 605 |
} |
| 606 |
/* required VPD size with unmap support */
|
| 607 |
buflen = 0x40;
|
| 608 |
memset(outbuf + 4, 0, buflen - 4); |
| 609 |
|
| 610 |
/* optimal transfer length granularity */
|
| 611 |
outbuf[6] = (min_io_size >> 8) & 0xff; |
| 612 |
outbuf[7] = min_io_size & 0xff; |
| 613 |
|
| 614 |
/* optimal transfer length */
|
| 615 |
outbuf[12] = (opt_io_size >> 24) & 0xff; |
| 616 |
outbuf[13] = (opt_io_size >> 16) & 0xff; |
| 617 |
outbuf[14] = (opt_io_size >> 8) & 0xff; |
| 618 |
outbuf[15] = opt_io_size & 0xff; |
| 619 |
|
| 620 |
/* optimal unmap granularity */
|
| 621 |
outbuf[28] = (unmap_sectors >> 24) & 0xff; |
| 622 |
outbuf[29] = (unmap_sectors >> 16) & 0xff; |
| 623 |
outbuf[30] = (unmap_sectors >> 8) & 0xff; |
| 624 |
outbuf[31] = unmap_sectors & 0xff; |
| 625 |
break;
|
| 626 |
} |
| 627 |
case 0xb2: /* thin provisioning */ |
| 628 |
{
|
| 629 |
buflen = 8;
|
| 630 |
outbuf[4] = 0; |
| 631 |
outbuf[5] = 0xe0; /* unmap & write_same 10/16 all supported */ |
| 632 |
outbuf[6] = s->qdev.conf.discard_granularity ? 2 : 1; |
| 633 |
outbuf[7] = 0; |
| 634 |
break;
|
| 635 |
} |
| 636 |
default:
|
| 637 |
return -1; |
| 638 |
} |
| 639 |
/* done with EVPD */
|
| 640 |
assert(buflen - start <= 255);
|
| 641 |
outbuf[start - 1] = buflen - start;
|
| 642 |
return buflen;
|
| 643 |
} |
| 644 |
|
| 645 |
/* Standard INQUIRY data */
|
| 646 |
if (req->cmd.buf[2] != 0) { |
| 647 |
return -1; |
| 648 |
} |
| 649 |
|
| 650 |
/* PAGE CODE == 0 */
|
| 651 |
buflen = req->cmd.xfer; |
| 652 |
if (buflen > SCSI_MAX_INQUIRY_LEN) {
|
| 653 |
buflen = SCSI_MAX_INQUIRY_LEN; |
| 654 |
} |
| 655 |
|
| 656 |
outbuf[0] = s->qdev.type & 0x1f; |
| 657 |
outbuf[1] = (s->features & (1 << SCSI_DISK_F_REMOVABLE)) ? 0x80 : 0; |
| 658 |
|
| 659 |
strpadcpy((char *) &outbuf[16], 16, s->product, ' '); |
| 660 |
strpadcpy((char *) &outbuf[8], 8, s->vendor, ' '); |
| 661 |
|
| 662 |
memset(&outbuf[32], 0, 4); |
| 663 |
memcpy(&outbuf[32], s->version, MIN(4, strlen(s->version))); |
| 664 |
/*
|
| 665 |
* We claim conformance to SPC-3, which is required for guests
|
| 666 |
* to ask for modern features like READ CAPACITY(16) or the
|
| 667 |
* block characteristics VPD page by default. Not all of SPC-3
|
| 668 |
* is actually implemented, but we're good enough.
|
| 669 |
*/
|
| 670 |
outbuf[2] = 5; |
| 671 |
outbuf[3] = 2 | 0x10; /* Format 2, HiSup */ |
| 672 |
|
| 673 |
if (buflen > 36) { |
| 674 |
outbuf[4] = buflen - 5; /* Additional Length = (Len - 1) - 4 */ |
| 675 |
} else {
|
| 676 |
/* If the allocation length of CDB is too small,
|
| 677 |
the additional length is not adjusted */
|
| 678 |
outbuf[4] = 36 - 5; |
| 679 |
} |
| 680 |
|
| 681 |
/* Sync data transfer and TCQ. */
|
| 682 |
outbuf[7] = 0x10 | (req->bus->info->tcq ? 0x02 : 0); |
| 683 |
return buflen;
|
| 684 |
} |
| 685 |
|
| 686 |
static inline bool media_is_dvd(SCSIDiskState *s) |
| 687 |
{
|
| 688 |
uint64_t nb_sectors; |
| 689 |
if (s->qdev.type != TYPE_ROM) {
|
| 690 |
return false; |
| 691 |
} |
| 692 |
if (!bdrv_is_inserted(s->qdev.conf.bs)) {
|
| 693 |
return false; |
| 694 |
} |
| 695 |
bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
| 696 |
return nb_sectors > CD_MAX_SECTORS;
|
| 697 |
} |
| 698 |
|
| 699 |
static inline bool media_is_cd(SCSIDiskState *s) |
| 700 |
{
|
| 701 |
uint64_t nb_sectors; |
| 702 |
if (s->qdev.type != TYPE_ROM) {
|
| 703 |
return false; |
| 704 |
} |
| 705 |
if (!bdrv_is_inserted(s->qdev.conf.bs)) {
|
| 706 |
return false; |
| 707 |
} |
| 708 |
bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
| 709 |
return nb_sectors <= CD_MAX_SECTORS;
|
| 710 |
} |
| 711 |
|
| 712 |
static int scsi_read_disc_information(SCSIDiskState *s, SCSIDiskReq *r, |
| 713 |
uint8_t *outbuf) |
| 714 |
{
|
| 715 |
uint8_t type = r->req.cmd.buf[1] & 7; |
| 716 |
|
| 717 |
if (s->qdev.type != TYPE_ROM) {
|
| 718 |
return -1; |
| 719 |
} |
| 720 |
|
| 721 |
/* Types 1/2 are only defined for Blu-Ray. */
|
| 722 |
if (type != 0) { |
| 723 |
scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
| 724 |
return -1; |
| 725 |
} |
| 726 |
|
| 727 |
memset(outbuf, 0, 34); |
| 728 |
outbuf[1] = 32; |
| 729 |
outbuf[2] = 0xe; /* last session complete, disc finalized */ |
| 730 |
outbuf[3] = 1; /* first track on disc */ |
| 731 |
outbuf[4] = 1; /* # of sessions */ |
| 732 |
outbuf[5] = 1; /* first track of last session */ |
| 733 |
outbuf[6] = 1; /* last track of last session */ |
| 734 |
outbuf[7] = 0x20; /* unrestricted use */ |
| 735 |
outbuf[8] = 0x00; /* CD-ROM or DVD-ROM */ |
| 736 |
/* 9-10-11: most significant byte corresponding bytes 4-5-6 */
|
| 737 |
/* 12-23: not meaningful for CD-ROM or DVD-ROM */
|
| 738 |
/* 24-31: disc bar code */
|
| 739 |
/* 32: disc application code */
|
| 740 |
/* 33: number of OPC tables */
|
| 741 |
|
| 742 |
return 34; |
| 743 |
} |
| 744 |
|
| 745 |
static int scsi_read_dvd_structure(SCSIDiskState *s, SCSIDiskReq *r, |
| 746 |
uint8_t *outbuf) |
| 747 |
{
|
| 748 |
static const int rds_caps_size[5] = { |
| 749 |
[0] = 2048 + 4, |
| 750 |
[1] = 4 + 4, |
| 751 |
[3] = 188 + 4, |
| 752 |
[4] = 2048 + 4, |
| 753 |
}; |
| 754 |
|
| 755 |
uint8_t media = r->req.cmd.buf[1];
|
| 756 |
uint8_t layer = r->req.cmd.buf[6];
|
| 757 |
uint8_t format = r->req.cmd.buf[7];
|
| 758 |
int size = -1; |
| 759 |
|
| 760 |
if (s->qdev.type != TYPE_ROM) {
|
| 761 |
return -1; |
| 762 |
} |
| 763 |
if (media != 0) { |
| 764 |
scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
| 765 |
return -1; |
| 766 |
} |
| 767 |
|
| 768 |
if (format != 0xff) { |
| 769 |
if (s->tray_open || !bdrv_is_inserted(s->qdev.conf.bs)) {
|
| 770 |
scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
| 771 |
return -1; |
| 772 |
} |
| 773 |
if (media_is_cd(s)) {
|
| 774 |
scsi_check_condition(r, SENSE_CODE(INCOMPATIBLE_FORMAT)); |
| 775 |
return -1; |
| 776 |
} |
| 777 |
if (format >= ARRAY_SIZE(rds_caps_size)) {
|
| 778 |
return -1; |
| 779 |
} |
| 780 |
size = rds_caps_size[format]; |
| 781 |
memset(outbuf, 0, size);
|
| 782 |
} |
| 783 |
|
| 784 |
switch (format) {
|
| 785 |
case 0x00: { |
| 786 |
/* Physical format information */
|
| 787 |
uint64_t nb_sectors; |
| 788 |
if (layer != 0) { |
| 789 |
goto fail;
|
| 790 |
} |
| 791 |
bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
| 792 |
|
| 793 |
outbuf[4] = 1; /* DVD-ROM, part version 1 */ |
| 794 |
outbuf[5] = 0xf; /* 120mm disc, minimum rate unspecified */ |
| 795 |
outbuf[6] = 1; /* one layer, read-only (per MMC-2 spec) */ |
| 796 |
outbuf[7] = 0; /* default densities */ |
| 797 |
|
| 798 |
stl_be_p(&outbuf[12], (nb_sectors >> 2) - 1); /* end sector */ |
| 799 |
stl_be_p(&outbuf[16], (nb_sectors >> 2) - 1); /* l0 end sector */ |
| 800 |
break;
|
| 801 |
} |
| 802 |
|
| 803 |
case 0x01: /* DVD copyright information, all zeros */ |
| 804 |
break;
|
| 805 |
|
| 806 |
case 0x03: /* BCA information - invalid field for no BCA info */ |
| 807 |
return -1; |
| 808 |
|
| 809 |
case 0x04: /* DVD disc manufacturing information, all zeros */ |
| 810 |
break;
|
| 811 |
|
| 812 |
case 0xff: { /* List capabilities */ |
| 813 |
int i;
|
| 814 |
size = 4;
|
| 815 |
for (i = 0; i < ARRAY_SIZE(rds_caps_size); i++) { |
| 816 |
if (!rds_caps_size[i]) {
|
| 817 |
continue;
|
| 818 |
} |
| 819 |
outbuf[size] = i; |
| 820 |
outbuf[size + 1] = 0x40; /* Not writable, readable */ |
| 821 |
stw_be_p(&outbuf[size + 2], rds_caps_size[i]);
|
| 822 |
size += 4;
|
| 823 |
} |
| 824 |
break;
|
| 825 |
} |
| 826 |
|
| 827 |
default:
|
| 828 |
return -1; |
| 829 |
} |
| 830 |
|
| 831 |
/* Size of buffer, not including 2 byte size field */
|
| 832 |
stw_be_p(outbuf, size - 2);
|
| 833 |
return size;
|
| 834 |
|
| 835 |
fail:
|
| 836 |
return -1; |
| 837 |
} |
| 838 |
|
| 839 |
static int scsi_event_status_media(SCSIDiskState *s, uint8_t *outbuf) |
| 840 |
{
|
| 841 |
uint8_t event_code, media_status; |
| 842 |
|
| 843 |
media_status = 0;
|
| 844 |
if (s->tray_open) {
|
| 845 |
media_status = MS_TRAY_OPEN; |
| 846 |
} else if (bdrv_is_inserted(s->qdev.conf.bs)) { |
| 847 |
media_status = MS_MEDIA_PRESENT; |
| 848 |
} |
| 849 |
|
| 850 |
/* Event notification descriptor */
|
| 851 |
event_code = MEC_NO_CHANGE; |
| 852 |
if (media_status != MS_TRAY_OPEN) {
|
| 853 |
if (s->media_event) {
|
| 854 |
event_code = MEC_NEW_MEDIA; |
| 855 |
s->media_event = false;
|
| 856 |
} else if (s->eject_request) { |
| 857 |
event_code = MEC_EJECT_REQUESTED; |
| 858 |
s->eject_request = false;
|
| 859 |
} |
| 860 |
} |
| 861 |
|
| 862 |
outbuf[0] = event_code;
|
| 863 |
outbuf[1] = media_status;
|
| 864 |
|
| 865 |
/* These fields are reserved, just clear them. */
|
| 866 |
outbuf[2] = 0; |
| 867 |
outbuf[3] = 0; |
| 868 |
return 4; |
| 869 |
} |
| 870 |
|
| 871 |
static int scsi_get_event_status_notification(SCSIDiskState *s, SCSIDiskReq *r, |
| 872 |
uint8_t *outbuf) |
| 873 |
{
|
| 874 |
int size;
|
| 875 |
uint8_t *buf = r->req.cmd.buf; |
| 876 |
uint8_t notification_class_request = buf[4];
|
| 877 |
if (s->qdev.type != TYPE_ROM) {
|
| 878 |
return -1; |
| 879 |
} |
| 880 |
if ((buf[1] & 1) == 0) { |
| 881 |
/* asynchronous */
|
| 882 |
return -1; |
| 883 |
} |
| 884 |
|
| 885 |
size = 4;
|
| 886 |
outbuf[0] = outbuf[1] = 0; |
| 887 |
outbuf[3] = 1 << GESN_MEDIA; /* supported events */ |
| 888 |
if (notification_class_request & (1 << GESN_MEDIA)) { |
| 889 |
outbuf[2] = GESN_MEDIA;
|
| 890 |
size += scsi_event_status_media(s, &outbuf[size]); |
| 891 |
} else {
|
| 892 |
outbuf[2] = 0x80; |
| 893 |
} |
| 894 |
stw_be_p(outbuf, size - 4);
|
| 895 |
return size;
|
| 896 |
} |
| 897 |
|
| 898 |
static int scsi_get_configuration(SCSIDiskState *s, uint8_t *outbuf) |
| 899 |
{
|
| 900 |
int current;
|
| 901 |
|
| 902 |
if (s->qdev.type != TYPE_ROM) {
|
| 903 |
return -1; |
| 904 |
} |
| 905 |
current = media_is_dvd(s) ? MMC_PROFILE_DVD_ROM : MMC_PROFILE_CD_ROM; |
| 906 |
memset(outbuf, 0, 40); |
| 907 |
stl_be_p(&outbuf[0], 36); /* Bytes after the data length field */ |
| 908 |
stw_be_p(&outbuf[6], current);
|
| 909 |
/* outbuf[8] - outbuf[19]: Feature 0 - Profile list */
|
| 910 |
outbuf[10] = 0x03; /* persistent, current */ |
| 911 |
outbuf[11] = 8; /* two profiles */ |
| 912 |
stw_be_p(&outbuf[12], MMC_PROFILE_DVD_ROM);
|
| 913 |
outbuf[14] = (current == MMC_PROFILE_DVD_ROM);
|
| 914 |
stw_be_p(&outbuf[16], MMC_PROFILE_CD_ROM);
|
| 915 |
outbuf[18] = (current == MMC_PROFILE_CD_ROM);
|
| 916 |
/* outbuf[20] - outbuf[31]: Feature 1 - Core feature */
|
| 917 |
stw_be_p(&outbuf[20], 1); |
| 918 |
outbuf[22] = 0x08 | 0x03; /* version 2, persistent, current */ |
| 919 |
outbuf[23] = 8; |
| 920 |
stl_be_p(&outbuf[24], 1); /* SCSI */ |
| 921 |
outbuf[28] = 1; /* DBE = 1, mandatory */ |
| 922 |
/* outbuf[32] - outbuf[39]: Feature 3 - Removable media feature */
|
| 923 |
stw_be_p(&outbuf[32], 3); |
| 924 |
outbuf[34] = 0x08 | 0x03; /* version 2, persistent, current */ |
| 925 |
outbuf[35] = 4; |
| 926 |
outbuf[36] = 0x39; /* tray, load=1, eject=1, unlocked at powerup, lock=1 */ |
| 927 |
/* TODO: Random readable, CD read, DVD read, drive serial number,
|
| 928 |
power management */
|
| 929 |
return 40; |
| 930 |
} |
| 931 |
|
| 932 |
static int scsi_emulate_mechanism_status(SCSIDiskState *s, uint8_t *outbuf) |
| 933 |
{
|
| 934 |
if (s->qdev.type != TYPE_ROM) {
|
| 935 |
return -1; |
| 936 |
} |
| 937 |
memset(outbuf, 0, 8); |
| 938 |
outbuf[5] = 1; /* CD-ROM */ |
| 939 |
return 8; |
| 940 |
} |
| 941 |
|
| 942 |
static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, |
| 943 |
int page_control)
|
| 944 |
{
|
| 945 |
static const int mode_sense_valid[0x3f] = { |
| 946 |
[MODE_PAGE_HD_GEOMETRY] = (1 << TYPE_DISK),
|
| 947 |
[MODE_PAGE_FLEXIBLE_DISK_GEOMETRY] = (1 << TYPE_DISK),
|
| 948 |
[MODE_PAGE_CACHING] = (1 << TYPE_DISK) | (1 << TYPE_ROM), |
| 949 |
[MODE_PAGE_R_W_ERROR] = (1 << TYPE_DISK) | (1 << TYPE_ROM), |
| 950 |
[MODE_PAGE_AUDIO_CTL] = (1 << TYPE_ROM),
|
| 951 |
[MODE_PAGE_CAPABILITIES] = (1 << TYPE_ROM),
|
| 952 |
}; |
| 953 |
|
| 954 |
uint8_t *p = *p_outbuf + 2;
|
| 955 |
int length;
|
| 956 |
|
| 957 |
if ((mode_sense_valid[page] & (1 << s->qdev.type)) == 0) { |
| 958 |
return -1; |
| 959 |
} |
| 960 |
|
| 961 |
/*
|
| 962 |
* If Changeable Values are requested, a mask denoting those mode parameters
|
| 963 |
* that are changeable shall be returned. As we currently don't support
|
| 964 |
* parameter changes via MODE_SELECT all bits are returned set to zero.
|
| 965 |
* The buffer was already menset to zero by the caller of this function.
|
| 966 |
*
|
| 967 |
* The offsets here are off by two compared to the descriptions in the
|
| 968 |
* SCSI specs, because those include a 2-byte header. This is unfortunate,
|
| 969 |
* but it is done so that offsets are consistent within our implementation
|
| 970 |
* of MODE SENSE and MODE SELECT. MODE SELECT has to deal with both
|
| 971 |
* 2-byte and 4-byte headers.
|
| 972 |
*/
|
| 973 |
switch (page) {
|
| 974 |
case MODE_PAGE_HD_GEOMETRY:
|
| 975 |
length = 0x16;
|
| 976 |
if (page_control == 1) { /* Changeable Values */ |
| 977 |
break;
|
| 978 |
} |
| 979 |
/* if a geometry hint is available, use it */
|
| 980 |
p[0] = (s->qdev.conf.cyls >> 16) & 0xff; |
| 981 |
p[1] = (s->qdev.conf.cyls >> 8) & 0xff; |
| 982 |
p[2] = s->qdev.conf.cyls & 0xff; |
| 983 |
p[3] = s->qdev.conf.heads & 0xff; |
| 984 |
/* Write precomp start cylinder, disabled */
|
| 985 |
p[4] = (s->qdev.conf.cyls >> 16) & 0xff; |
| 986 |
p[5] = (s->qdev.conf.cyls >> 8) & 0xff; |
| 987 |
p[6] = s->qdev.conf.cyls & 0xff; |
| 988 |
/* Reduced current start cylinder, disabled */
|
| 989 |
p[7] = (s->qdev.conf.cyls >> 16) & 0xff; |
| 990 |
p[8] = (s->qdev.conf.cyls >> 8) & 0xff; |
| 991 |
p[9] = s->qdev.conf.cyls & 0xff; |
| 992 |
/* Device step rate [ns], 200ns */
|
| 993 |
p[10] = 0; |
| 994 |
p[11] = 200; |
| 995 |
/* Landing zone cylinder */
|
| 996 |
p[12] = 0xff; |
| 997 |
p[13] = 0xff; |
| 998 |
p[14] = 0xff; |
| 999 |
/* Medium rotation rate [rpm], 5400 rpm */
|
| 1000 |
p[18] = (5400 >> 8) & 0xff; |
| 1001 |
p[19] = 5400 & 0xff; |
| 1002 |
break;
|
| 1003 |
|
| 1004 |
case MODE_PAGE_FLEXIBLE_DISK_GEOMETRY:
|
| 1005 |
length = 0x1e;
|
| 1006 |
if (page_control == 1) { /* Changeable Values */ |
| 1007 |
break;
|
| 1008 |
} |
| 1009 |
/* Transfer rate [kbit/s], 5Mbit/s */
|
| 1010 |
p[0] = 5000 >> 8; |
| 1011 |
p[1] = 5000 & 0xff; |
| 1012 |
/* if a geometry hint is available, use it */
|
| 1013 |
p[2] = s->qdev.conf.heads & 0xff; |
| 1014 |
p[3] = s->qdev.conf.secs & 0xff; |
| 1015 |
p[4] = s->qdev.blocksize >> 8; |
| 1016 |
p[6] = (s->qdev.conf.cyls >> 8) & 0xff; |
| 1017 |
p[7] = s->qdev.conf.cyls & 0xff; |
| 1018 |
/* Write precomp start cylinder, disabled */
|
| 1019 |
p[8] = (s->qdev.conf.cyls >> 8) & 0xff; |
| 1020 |
p[9] = s->qdev.conf.cyls & 0xff; |
| 1021 |
/* Reduced current start cylinder, disabled */
|
| 1022 |
p[10] = (s->qdev.conf.cyls >> 8) & 0xff; |
| 1023 |
p[11] = s->qdev.conf.cyls & 0xff; |
| 1024 |
/* Device step rate [100us], 100us */
|
| 1025 |
p[12] = 0; |
| 1026 |
p[13] = 1; |
| 1027 |
/* Device step pulse width [us], 1us */
|
| 1028 |
p[14] = 1; |
| 1029 |
/* Device head settle delay [100us], 100us */
|
| 1030 |
p[15] = 0; |
| 1031 |
p[16] = 1; |
| 1032 |
/* Motor on delay [0.1s], 0.1s */
|
| 1033 |
p[17] = 1; |
| 1034 |
/* Motor off delay [0.1s], 0.1s */
|
| 1035 |
p[18] = 1; |
| 1036 |
/* Medium rotation rate [rpm], 5400 rpm */
|
| 1037 |
p[26] = (5400 >> 8) & 0xff; |
| 1038 |
p[27] = 5400 & 0xff; |
| 1039 |
break;
|
| 1040 |
|
| 1041 |
case MODE_PAGE_CACHING:
|
| 1042 |
length = 0x12;
|
| 1043 |
if (page_control == 1 || /* Changeable Values */ |
| 1044 |
bdrv_enable_write_cache(s->qdev.conf.bs)) {
|
| 1045 |
p[0] = 4; /* WCE */ |
| 1046 |
} |
| 1047 |
break;
|
| 1048 |
|
| 1049 |
case MODE_PAGE_R_W_ERROR:
|
| 1050 |
length = 10;
|
| 1051 |
if (page_control == 1) { /* Changeable Values */ |
| 1052 |
break;
|
| 1053 |
} |
| 1054 |
p[0] = 0x80; /* Automatic Write Reallocation Enabled */ |
| 1055 |
if (s->qdev.type == TYPE_ROM) {
|
| 1056 |
p[1] = 0x20; /* Read Retry Count */ |
| 1057 |
} |
| 1058 |
break;
|
| 1059 |
|
| 1060 |
case MODE_PAGE_AUDIO_CTL:
|
| 1061 |
length = 14;
|
| 1062 |
break;
|
| 1063 |
|
| 1064 |
case MODE_PAGE_CAPABILITIES:
|
| 1065 |
length = 0x14;
|
| 1066 |
if (page_control == 1) { /* Changeable Values */ |
| 1067 |
break;
|
| 1068 |
} |
| 1069 |
|
| 1070 |
p[0] = 0x3b; /* CD-R & CD-RW read */ |
| 1071 |
p[1] = 0; /* Writing not supported */ |
| 1072 |
p[2] = 0x7f; /* Audio, composite, digital out, |
| 1073 |
mode 2 form 1&2, multi session */
|
| 1074 |
p[3] = 0xff; /* CD DA, DA accurate, RW supported, |
| 1075 |
RW corrected, C2 errors, ISRC,
|
| 1076 |
UPC, Bar code */
|
| 1077 |
p[4] = 0x2d | (s->tray_locked ? 2 : 0); |
| 1078 |
/* Locking supported, jumper present, eject, tray */
|
| 1079 |
p[5] = 0; /* no volume & mute control, no |
| 1080 |
changer */
|
| 1081 |
p[6] = (50 * 176) >> 8; /* 50x read speed */ |
| 1082 |
p[7] = (50 * 176) & 0xff; |
| 1083 |
p[8] = 2 >> 8; /* Two volume levels */ |
| 1084 |
p[9] = 2 & 0xff; |
| 1085 |
p[10] = 2048 >> 8; /* 2M buffer */ |
| 1086 |
p[11] = 2048 & 0xff; |
| 1087 |
p[12] = (16 * 176) >> 8; /* 16x read speed current */ |
| 1088 |
p[13] = (16 * 176) & 0xff; |
| 1089 |
p[16] = (16 * 176) >> 8; /* 16x write speed */ |
| 1090 |
p[17] = (16 * 176) & 0xff; |
| 1091 |
p[18] = (16 * 176) >> 8; /* 16x write speed current */ |
| 1092 |
p[19] = (16 * 176) & 0xff; |
| 1093 |
break;
|
| 1094 |
|
| 1095 |
default:
|
| 1096 |
return -1; |
| 1097 |
} |
| 1098 |
|
| 1099 |
assert(length < 256);
|
| 1100 |
(*p_outbuf)[0] = page;
|
| 1101 |
(*p_outbuf)[1] = length;
|
| 1102 |
*p_outbuf += length + 2;
|
| 1103 |
return length + 2; |
| 1104 |
} |
| 1105 |
|
| 1106 |
static int scsi_disk_emulate_mode_sense(SCSIDiskReq *r, uint8_t *outbuf) |
| 1107 |
{
|
| 1108 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 1109 |
uint64_t nb_sectors; |
| 1110 |
bool dbd;
|
| 1111 |
int page, buflen, ret, page_control;
|
| 1112 |
uint8_t *p; |
| 1113 |
uint8_t dev_specific_param; |
| 1114 |
|
| 1115 |
dbd = (r->req.cmd.buf[1] & 0x8) != 0; |
| 1116 |
page = r->req.cmd.buf[2] & 0x3f; |
| 1117 |
page_control = (r->req.cmd.buf[2] & 0xc0) >> 6; |
| 1118 |
DPRINTF("Mode Sense(%d) (page %d, xfer %zd, page_control %d)\n",
|
| 1119 |
(r->req.cmd.buf[0] == MODE_SENSE) ? 6 : 10, page, r->req.cmd.xfer, page_control); |
| 1120 |
memset(outbuf, 0, r->req.cmd.xfer);
|
| 1121 |
p = outbuf; |
| 1122 |
|
| 1123 |
if (s->qdev.type == TYPE_DISK) {
|
| 1124 |
dev_specific_param = s->features & (1 << SCSI_DISK_F_DPOFUA) ? 0x10 : 0; |
| 1125 |
if (bdrv_is_read_only(s->qdev.conf.bs)) {
|
| 1126 |
dev_specific_param |= 0x80; /* Readonly. */ |
| 1127 |
} |
| 1128 |
} else {
|
| 1129 |
/* MMC prescribes that CD/DVD drives have no block descriptors,
|
| 1130 |
* and defines no device-specific parameter. */
|
| 1131 |
dev_specific_param = 0x00;
|
| 1132 |
dbd = true;
|
| 1133 |
} |
| 1134 |
|
| 1135 |
if (r->req.cmd.buf[0] == MODE_SENSE) { |
| 1136 |
p[1] = 0; /* Default media type. */ |
| 1137 |
p[2] = dev_specific_param;
|
| 1138 |
p[3] = 0; /* Block descriptor length. */ |
| 1139 |
p += 4;
|
| 1140 |
} else { /* MODE_SENSE_10 */ |
| 1141 |
p[2] = 0; /* Default media type. */ |
| 1142 |
p[3] = dev_specific_param;
|
| 1143 |
p[6] = p[7] = 0; /* Block descriptor length. */ |
| 1144 |
p += 8;
|
| 1145 |
} |
| 1146 |
|
| 1147 |
bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
| 1148 |
if (!dbd && nb_sectors) {
|
| 1149 |
if (r->req.cmd.buf[0] == MODE_SENSE) { |
| 1150 |
outbuf[3] = 8; /* Block descriptor length */ |
| 1151 |
} else { /* MODE_SENSE_10 */ |
| 1152 |
outbuf[7] = 8; /* Block descriptor length */ |
| 1153 |
} |
| 1154 |
nb_sectors /= (s->qdev.blocksize / 512);
|
| 1155 |
if (nb_sectors > 0xffffff) { |
| 1156 |
nb_sectors = 0;
|
| 1157 |
} |
| 1158 |
p[0] = 0; /* media density code */ |
| 1159 |
p[1] = (nb_sectors >> 16) & 0xff; |
| 1160 |
p[2] = (nb_sectors >> 8) & 0xff; |
| 1161 |
p[3] = nb_sectors & 0xff; |
| 1162 |
p[4] = 0; /* reserved */ |
| 1163 |
p[5] = 0; /* bytes 5-7 are the sector size in bytes */ |
| 1164 |
p[6] = s->qdev.blocksize >> 8; |
| 1165 |
p[7] = 0; |
| 1166 |
p += 8;
|
| 1167 |
} |
| 1168 |
|
| 1169 |
if (page_control == 3) { |
| 1170 |
/* Saved Values */
|
| 1171 |
scsi_check_condition(r, SENSE_CODE(SAVING_PARAMS_NOT_SUPPORTED)); |
| 1172 |
return -1; |
| 1173 |
} |
| 1174 |
|
| 1175 |
if (page == 0x3f) { |
| 1176 |
for (page = 0; page <= 0x3e; page++) { |
| 1177 |
mode_sense_page(s, page, &p, page_control); |
| 1178 |
} |
| 1179 |
} else {
|
| 1180 |
ret = mode_sense_page(s, page, &p, page_control); |
| 1181 |
if (ret == -1) { |
| 1182 |
return -1; |
| 1183 |
} |
| 1184 |
} |
| 1185 |
|
| 1186 |
buflen = p - outbuf; |
| 1187 |
/*
|
| 1188 |
* The mode data length field specifies the length in bytes of the
|
| 1189 |
* following data that is available to be transferred. The mode data
|
| 1190 |
* length does not include itself.
|
| 1191 |
*/
|
| 1192 |
if (r->req.cmd.buf[0] == MODE_SENSE) { |
| 1193 |
outbuf[0] = buflen - 1; |
| 1194 |
} else { /* MODE_SENSE_10 */ |
| 1195 |
outbuf[0] = ((buflen - 2) >> 8) & 0xff; |
| 1196 |
outbuf[1] = (buflen - 2) & 0xff; |
| 1197 |
} |
| 1198 |
return buflen;
|
| 1199 |
} |
| 1200 |
|
| 1201 |
static int scsi_disk_emulate_read_toc(SCSIRequest *req, uint8_t *outbuf) |
| 1202 |
{
|
| 1203 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
| 1204 |
int start_track, format, msf, toclen;
|
| 1205 |
uint64_t nb_sectors; |
| 1206 |
|
| 1207 |
msf = req->cmd.buf[1] & 2; |
| 1208 |
format = req->cmd.buf[2] & 0xf; |
| 1209 |
start_track = req->cmd.buf[6];
|
| 1210 |
bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
| 1211 |
DPRINTF("Read TOC (track %d format %d msf %d)\n", start_track, format, msf >> 1); |
| 1212 |
nb_sectors /= s->qdev.blocksize / 512;
|
| 1213 |
switch (format) {
|
| 1214 |
case 0: |
| 1215 |
toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); |
| 1216 |
break;
|
| 1217 |
case 1: |
| 1218 |
/* multi session : only a single session defined */
|
| 1219 |
toclen = 12;
|
| 1220 |
memset(outbuf, 0, 12); |
| 1221 |
outbuf[1] = 0x0a; |
| 1222 |
outbuf[2] = 0x01; |
| 1223 |
outbuf[3] = 0x01; |
| 1224 |
break;
|
| 1225 |
case 2: |
| 1226 |
toclen = cdrom_read_toc_raw(nb_sectors, outbuf, msf, start_track); |
| 1227 |
break;
|
| 1228 |
default:
|
| 1229 |
return -1; |
| 1230 |
} |
| 1231 |
return toclen;
|
| 1232 |
} |
| 1233 |
|
| 1234 |
static int scsi_disk_emulate_start_stop(SCSIDiskReq *r) |
| 1235 |
{
|
| 1236 |
SCSIRequest *req = &r->req; |
| 1237 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
| 1238 |
bool start = req->cmd.buf[4] & 1; |
| 1239 |
bool loej = req->cmd.buf[4] & 2; /* load on start, eject on !start */ |
| 1240 |
int pwrcnd = req->cmd.buf[4] & 0xf0; |
| 1241 |
|
| 1242 |
if (pwrcnd) {
|
| 1243 |
/* eject/load only happens for power condition == 0 */
|
| 1244 |
return 0; |
| 1245 |
} |
| 1246 |
|
| 1247 |
if ((s->features & (1 << SCSI_DISK_F_REMOVABLE)) && loej) { |
| 1248 |
if (!start && !s->tray_open && s->tray_locked) {
|
| 1249 |
scsi_check_condition(r, |
| 1250 |
bdrv_is_inserted(s->qdev.conf.bs) |
| 1251 |
? SENSE_CODE(ILLEGAL_REQ_REMOVAL_PREVENTED) |
| 1252 |
: SENSE_CODE(NOT_READY_REMOVAL_PREVENTED)); |
| 1253 |
return -1; |
| 1254 |
} |
| 1255 |
|
| 1256 |
if (s->tray_open != !start) {
|
| 1257 |
bdrv_eject(s->qdev.conf.bs, !start); |
| 1258 |
s->tray_open = !start; |
| 1259 |
} |
| 1260 |
} |
| 1261 |
return 0; |
| 1262 |
} |
| 1263 |
|
| 1264 |
static void scsi_disk_emulate_read_data(SCSIRequest *req) |
| 1265 |
{
|
| 1266 |
SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
| 1267 |
int buflen = r->iov.iov_len;
|
| 1268 |
|
| 1269 |
if (buflen) {
|
| 1270 |
DPRINTF("Read buf_len=%d\n", buflen);
|
| 1271 |
r->iov.iov_len = 0;
|
| 1272 |
r->started = true;
|
| 1273 |
scsi_req_data(&r->req, buflen); |
| 1274 |
return;
|
| 1275 |
} |
| 1276 |
|
| 1277 |
/* This also clears the sense buffer for REQUEST SENSE. */
|
| 1278 |
scsi_req_complete(&r->req, GOOD); |
| 1279 |
} |
| 1280 |
|
| 1281 |
static int scsi_disk_check_mode_select(SCSIDiskState *s, int page, |
| 1282 |
uint8_t *inbuf, int inlen)
|
| 1283 |
{
|
| 1284 |
uint8_t mode_current[SCSI_MAX_MODE_LEN]; |
| 1285 |
uint8_t mode_changeable[SCSI_MAX_MODE_LEN]; |
| 1286 |
uint8_t *p; |
| 1287 |
int len, expected_len, changeable_len, i;
|
| 1288 |
|
| 1289 |
/* The input buffer does not include the page header, so it is
|
| 1290 |
* off by 2 bytes.
|
| 1291 |
*/
|
| 1292 |
expected_len = inlen + 2;
|
| 1293 |
if (expected_len > SCSI_MAX_MODE_LEN) {
|
| 1294 |
return -1; |
| 1295 |
} |
| 1296 |
|
| 1297 |
p = mode_current; |
| 1298 |
memset(mode_current, 0, inlen + 2); |
| 1299 |
len = mode_sense_page(s, page, &p, 0);
|
| 1300 |
if (len < 0 || len != expected_len) { |
| 1301 |
return -1; |
| 1302 |
} |
| 1303 |
|
| 1304 |
p = mode_changeable; |
| 1305 |
memset(mode_changeable, 0, inlen + 2); |
| 1306 |
changeable_len = mode_sense_page(s, page, &p, 1);
|
| 1307 |
assert(changeable_len == len); |
| 1308 |
|
| 1309 |
/* Check that unchangeable bits are the same as what MODE SENSE
|
| 1310 |
* would return.
|
| 1311 |
*/
|
| 1312 |
for (i = 2; i < len; i++) { |
| 1313 |
if (((mode_current[i] ^ inbuf[i - 2]) & ~mode_changeable[i]) != 0) { |
| 1314 |
return -1; |
| 1315 |
} |
| 1316 |
} |
| 1317 |
return 0; |
| 1318 |
} |
| 1319 |
|
| 1320 |
static void scsi_disk_apply_mode_select(SCSIDiskState *s, int page, uint8_t *p) |
| 1321 |
{
|
| 1322 |
switch (page) {
|
| 1323 |
case MODE_PAGE_CACHING:
|
| 1324 |
bdrv_set_enable_write_cache(s->qdev.conf.bs, (p[0] & 4) != 0); |
| 1325 |
break;
|
| 1326 |
|
| 1327 |
default:
|
| 1328 |
break;
|
| 1329 |
} |
| 1330 |
} |
| 1331 |
|
| 1332 |
static int mode_select_pages(SCSIDiskReq *r, uint8_t *p, int len, bool change) |
| 1333 |
{
|
| 1334 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 1335 |
|
| 1336 |
while (len > 0) { |
| 1337 |
int page, subpage, page_len;
|
| 1338 |
|
| 1339 |
/* Parse both possible formats for the mode page headers. */
|
| 1340 |
page = p[0] & 0x3f; |
| 1341 |
if (p[0] & 0x40) { |
| 1342 |
if (len < 4) { |
| 1343 |
goto invalid_param_len;
|
| 1344 |
} |
| 1345 |
subpage = p[1];
|
| 1346 |
page_len = lduw_be_p(&p[2]);
|
| 1347 |
p += 4;
|
| 1348 |
len -= 4;
|
| 1349 |
} else {
|
| 1350 |
if (len < 2) { |
| 1351 |
goto invalid_param_len;
|
| 1352 |
} |
| 1353 |
subpage = 0;
|
| 1354 |
page_len = p[1];
|
| 1355 |
p += 2;
|
| 1356 |
len -= 2;
|
| 1357 |
} |
| 1358 |
|
| 1359 |
if (subpage) {
|
| 1360 |
goto invalid_param;
|
| 1361 |
} |
| 1362 |
if (page_len > len) {
|
| 1363 |
goto invalid_param_len;
|
| 1364 |
} |
| 1365 |
|
| 1366 |
if (!change) {
|
| 1367 |
if (scsi_disk_check_mode_select(s, page, p, page_len) < 0) { |
| 1368 |
goto invalid_param;
|
| 1369 |
} |
| 1370 |
} else {
|
| 1371 |
scsi_disk_apply_mode_select(s, page, p); |
| 1372 |
} |
| 1373 |
|
| 1374 |
p += page_len; |
| 1375 |
len -= page_len; |
| 1376 |
} |
| 1377 |
return 0; |
| 1378 |
|
| 1379 |
invalid_param:
|
| 1380 |
scsi_check_condition(r, SENSE_CODE(INVALID_PARAM)); |
| 1381 |
return -1; |
| 1382 |
|
| 1383 |
invalid_param_len:
|
| 1384 |
scsi_check_condition(r, SENSE_CODE(INVALID_PARAM_LEN)); |
| 1385 |
return -1; |
| 1386 |
} |
| 1387 |
|
| 1388 |
static void scsi_disk_emulate_mode_select(SCSIDiskReq *r, uint8_t *inbuf) |
| 1389 |
{
|
| 1390 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 1391 |
uint8_t *p = inbuf; |
| 1392 |
int cmd = r->req.cmd.buf[0]; |
| 1393 |
int len = r->req.cmd.xfer;
|
| 1394 |
int hdr_len = (cmd == MODE_SELECT ? 4 : 8); |
| 1395 |
int bd_len;
|
| 1396 |
int pass;
|
| 1397 |
|
| 1398 |
/* We only support PF=1, SP=0. */
|
| 1399 |
if ((r->req.cmd.buf[1] & 0x11) != 0x10) { |
| 1400 |
goto invalid_field;
|
| 1401 |
} |
| 1402 |
|
| 1403 |
if (len < hdr_len) {
|
| 1404 |
goto invalid_param_len;
|
| 1405 |
} |
| 1406 |
|
| 1407 |
bd_len = (cmd == MODE_SELECT ? p[3] : lduw_be_p(&p[6])); |
| 1408 |
len -= hdr_len; |
| 1409 |
p += hdr_len; |
| 1410 |
if (len < bd_len) {
|
| 1411 |
goto invalid_param_len;
|
| 1412 |
} |
| 1413 |
if (bd_len != 0 && bd_len != 8) { |
| 1414 |
goto invalid_param;
|
| 1415 |
} |
| 1416 |
|
| 1417 |
len -= bd_len; |
| 1418 |
p += bd_len; |
| 1419 |
|
| 1420 |
/* Ensure no change is made if there is an error! */
|
| 1421 |
for (pass = 0; pass < 2; pass++) { |
| 1422 |
if (mode_select_pages(r, p, len, pass == 1) < 0) { |
| 1423 |
assert(pass == 0);
|
| 1424 |
return;
|
| 1425 |
} |
| 1426 |
} |
| 1427 |
if (!bdrv_enable_write_cache(s->qdev.conf.bs)) {
|
| 1428 |
/* The request is used as the AIO opaque value, so add a ref. */
|
| 1429 |
scsi_req_ref(&r->req); |
| 1430 |
bdrv_acct_start(s->qdev.conf.bs, &r->acct, 0, BDRV_ACCT_FLUSH);
|
| 1431 |
r->req.aiocb = bdrv_aio_flush(s->qdev.conf.bs, scsi_aio_complete, r); |
| 1432 |
return;
|
| 1433 |
} |
| 1434 |
|
| 1435 |
scsi_req_complete(&r->req, GOOD); |
| 1436 |
return;
|
| 1437 |
|
| 1438 |
invalid_param:
|
| 1439 |
scsi_check_condition(r, SENSE_CODE(INVALID_PARAM)); |
| 1440 |
return;
|
| 1441 |
|
| 1442 |
invalid_param_len:
|
| 1443 |
scsi_check_condition(r, SENSE_CODE(INVALID_PARAM_LEN)); |
| 1444 |
return;
|
| 1445 |
|
| 1446 |
invalid_field:
|
| 1447 |
scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
| 1448 |
} |
| 1449 |
|
| 1450 |
static inline bool check_lba_range(SCSIDiskState *s, |
| 1451 |
uint64_t sector_num, uint32_t nb_sectors) |
| 1452 |
{
|
| 1453 |
/*
|
| 1454 |
* The first line tests that no overflow happens when computing the last
|
| 1455 |
* sector. The second line tests that the last accessed sector is in
|
| 1456 |
* range.
|
| 1457 |
*
|
| 1458 |
* Careful, the computations should not underflow for nb_sectors == 0,
|
| 1459 |
* and a 0-block read to the first LBA beyond the end of device is
|
| 1460 |
* valid.
|
| 1461 |
*/
|
| 1462 |
return (sector_num <= sector_num + nb_sectors &&
|
| 1463 |
sector_num + nb_sectors <= s->qdev.max_lba + 1);
|
| 1464 |
} |
| 1465 |
|
| 1466 |
typedef struct UnmapCBData { |
| 1467 |
SCSIDiskReq *r; |
| 1468 |
uint8_t *inbuf; |
| 1469 |
int count;
|
| 1470 |
} UnmapCBData; |
| 1471 |
|
| 1472 |
static void scsi_unmap_complete(void *opaque, int ret) |
| 1473 |
{
|
| 1474 |
UnmapCBData *data = opaque; |
| 1475 |
SCSIDiskReq *r = data->r; |
| 1476 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
| 1477 |
uint64_t sector_num; |
| 1478 |
uint32_t nb_sectors; |
| 1479 |
|
| 1480 |
r->req.aiocb = NULL;
|
| 1481 |
if (ret < 0) { |
| 1482 |
if (scsi_handle_rw_error(r, -ret)) {
|
| 1483 |
goto done;
|
| 1484 |
} |
| 1485 |
} |
| 1486 |
|
| 1487 |
if (data->count > 0 && !r->req.io_canceled) { |
| 1488 |
sector_num = ldq_be_p(&data->inbuf[0]);
|
| 1489 |
nb_sectors = ldl_be_p(&data->inbuf[8]) & 0xffffffffULL; |
| 1490 |
if (!check_lba_range(s, sector_num, nb_sectors)) {
|
| 1491 |
scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); |
| 1492 |
goto done;
|
| 1493 |
} |
| 1494 |
|
| 1495 |
r->req.aiocb = bdrv_aio_discard(s->qdev.conf.bs, |
| 1496 |
sector_num * (s->qdev.blocksize / 512),
|
| 1497 |
nb_sectors * (s->qdev.blocksize / 512),
|
| 1498 |
scsi_unmap_complete, data); |
| 1499 |
data->count--; |
| 1500 |
data->inbuf += 16;
|
| 1501 |
return;
|
| 1502 |
} |
| 1503 |
|
| 1504 |
done:
|
| 1505 |
if (data->count == 0) { |
| 1506 |
scsi_req_complete(&r->req, GOOD); |
| 1507 |
} |
| 1508 |
if (!r->req.io_canceled) {
|
| 1509 |
scsi_req_unref(&r->req); |
| 1510 |
} |
| 1511 |
g_free(data); |
| 1512 |
} |
| 1513 |
|
| 1514 |
static void scsi_disk_emulate_unmap(SCSIDiskReq *r, uint8_t *inbuf) |
| 1515 |
{
|
| 1516 |
uint8_t *p = inbuf; |
| 1517 |
int len = r->req.cmd.xfer;
|
| 1518 |
UnmapCBData *data; |
| 1519 |
|
| 1520 |
if (len < 8) { |
| 1521 |
goto invalid_param_len;
|
| 1522 |
} |
| 1523 |
if (len < lduw_be_p(&p[0]) + 2) { |
| 1524 |
goto invalid_param_len;
|
| 1525 |
} |
| 1526 |
if (len < lduw_be_p(&p[2]) + 8) { |
| 1527 |
goto invalid_param_len;
|
| 1528 |
} |
| 1529 |
if (lduw_be_p(&p[2]) & 15) { |
| 1530 |
goto invalid_param_len;
|
| 1531 |
} |
| 1532 |
|
| 1533 |
data = g_new0(UnmapCBData, 1);
|
| 1534 |
data->r = r; |
| 1535 |
data->inbuf = &p[8];
|
| 1536 |
data->count = lduw_be_p(&p[2]) >> 4; |
| 1537 |
|
| 1538 |
/* The matching unref is in scsi_unmap_complete, before data is freed. */
|
| 1539 |
scsi_req_ref(&r->req); |
| 1540 |
scsi_unmap_complete(data, 0);
|
| 1541 |
return;
|
| 1542 |
|
| 1543 |
invalid_param_len:
|
| 1544 |
scsi_check_condition(r, SENSE_CODE(INVALID_PARAM_LEN)); |
| 1545 |
} |
| 1546 |
|
| 1547 |
static void scsi_disk_emulate_write_data(SCSIRequest *req) |
| 1548 |
{
|
| 1549 |
SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
| 1550 |
|
| 1551 |
if (r->iov.iov_len) {
|
| 1552 |
int buflen = r->iov.iov_len;
|
| 1553 |
DPRINTF("Write buf_len=%d\n", buflen);
|
| 1554 |
r->iov.iov_len = 0;
|
| 1555 |
scsi_req_data(&r->req, buflen); |
| 1556 |
return;
|
| 1557 |
} |
| 1558 |
|
| 1559 |
switch (req->cmd.buf[0]) { |
| 1560 |
case MODE_SELECT:
|
| 1561 |
case MODE_SELECT_10:
|
| 1562 |
/* This also clears the sense buffer for REQUEST SENSE. */
|
| 1563 |
scsi_disk_emulate_mode_select(r, r->iov.iov_base); |
| 1564 |
break;
|
| 1565 |
|
| 1566 |
case UNMAP:
|
| 1567 |
scsi_disk_emulate_unmap(r, r->iov.iov_base); |
| 1568 |
break;
|
| 1569 |
|
| 1570 |
default:
|
| 1571 |
abort(); |
| 1572 |
} |
| 1573 |
} |
| 1574 |
|
| 1575 |
static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf)
|
| 1576 |
{
|
| 1577 |
SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
| 1578 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
| 1579 |
uint64_t nb_sectors; |
| 1580 |
uint8_t *outbuf; |
| 1581 |
int buflen;
|
| 1582 |
|
| 1583 |
switch (req->cmd.buf[0]) { |
| 1584 |
case INQUIRY:
|
| 1585 |
case MODE_SENSE:
|
| 1586 |
case MODE_SENSE_10:
|
| 1587 |
case RESERVE:
|
| 1588 |
case RESERVE_10:
|
| 1589 |
case RELEASE:
|
| 1590 |
case RELEASE_10:
|
| 1591 |
case START_STOP:
|
| 1592 |
case ALLOW_MEDIUM_REMOVAL:
|
| 1593 |
case GET_CONFIGURATION:
|
| 1594 |
case GET_EVENT_STATUS_NOTIFICATION:
|
| 1595 |
case MECHANISM_STATUS:
|
| 1596 |
case REQUEST_SENSE:
|
| 1597 |
break;
|
| 1598 |
|
| 1599 |
default:
|
| 1600 |
if (s->tray_open || !bdrv_is_inserted(s->qdev.conf.bs)) {
|
| 1601 |
scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
| 1602 |
return 0; |
| 1603 |
} |
| 1604 |
break;
|
| 1605 |
} |
| 1606 |
|
| 1607 |
/*
|
| 1608 |
* FIXME: we shouldn't return anything bigger than 4k, but the code
|
| 1609 |
* requires the buffer to be as big as req->cmd.xfer in several
|
| 1610 |
* places. So, do not allow CDBs with a very large ALLOCATION
|
| 1611 |
* LENGTH. The real fix would be to modify scsi_read_data and
|
| 1612 |
* dma_buf_read, so that they return data beyond the buflen
|
| 1613 |
* as all zeros.
|
| 1614 |
*/
|
| 1615 |
if (req->cmd.xfer > 65536) { |
| 1616 |
goto illegal_request;
|
| 1617 |
} |
| 1618 |
r->buflen = MAX(4096, req->cmd.xfer);
|
| 1619 |
|
| 1620 |
if (!r->iov.iov_base) {
|
| 1621 |
r->iov.iov_base = qemu_blockalign(s->qdev.conf.bs, r->buflen); |
| 1622 |
} |
| 1623 |
|
| 1624 |
buflen = req->cmd.xfer; |
| 1625 |
outbuf = r->iov.iov_base; |
| 1626 |
memset(outbuf, 0, r->buflen);
|
| 1627 |
switch (req->cmd.buf[0]) { |
| 1628 |
case TEST_UNIT_READY:
|
| 1629 |
assert(!s->tray_open && bdrv_is_inserted(s->qdev.conf.bs)); |
| 1630 |
break;
|
| 1631 |
case INQUIRY:
|
| 1632 |
buflen = scsi_disk_emulate_inquiry(req, outbuf); |
| 1633 |
if (buflen < 0) { |
| 1634 |
goto illegal_request;
|
| 1635 |
} |
| 1636 |
break;
|
| 1637 |
case MODE_SENSE:
|
| 1638 |
case MODE_SENSE_10:
|
| 1639 |
buflen = scsi_disk_emulate_mode_sense(r, outbuf); |
| 1640 |
if (buflen < 0) { |
| 1641 |
goto illegal_request;
|
| 1642 |
} |
| 1643 |
break;
|
| 1644 |
case READ_TOC:
|
| 1645 |
buflen = scsi_disk_emulate_read_toc(req, outbuf); |
| 1646 |
if (buflen < 0) { |
| 1647 |
goto illegal_request;
|
| 1648 |
} |
| 1649 |
break;
|
| 1650 |
case RESERVE:
|
| 1651 |
if (req->cmd.buf[1] & 1) { |
| 1652 |
goto illegal_request;
|
| 1653 |
} |
| 1654 |
break;
|
| 1655 |
case RESERVE_10:
|
| 1656 |
if (req->cmd.buf[1] & 3) { |
| 1657 |
goto illegal_request;
|
| 1658 |
} |
| 1659 |
break;
|
| 1660 |
case RELEASE:
|
| 1661 |
if (req->cmd.buf[1] & 1) { |
| 1662 |
goto illegal_request;
|
| 1663 |
} |
| 1664 |
break;
|
| 1665 |
case RELEASE_10:
|
| 1666 |
if (req->cmd.buf[1] & 3) { |
| 1667 |
goto illegal_request;
|
| 1668 |
} |
| 1669 |
break;
|
| 1670 |
case START_STOP:
|
| 1671 |
if (scsi_disk_emulate_start_stop(r) < 0) { |
| 1672 |
return 0; |
| 1673 |
} |
| 1674 |
break;
|
| 1675 |
case ALLOW_MEDIUM_REMOVAL:
|
| 1676 |
s->tray_locked = req->cmd.buf[4] & 1; |
| 1677 |
bdrv_lock_medium(s->qdev.conf.bs, req->cmd.buf[4] & 1); |
| 1678 |
break;
|
| 1679 |
case READ_CAPACITY_10:
|
| 1680 |
/* The normal LEN field for this command is zero. */
|
| 1681 |
memset(outbuf, 0, 8); |
| 1682 |
bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
| 1683 |
if (!nb_sectors) {
|
| 1684 |
scsi_check_condition(r, SENSE_CODE(LUN_NOT_READY)); |
| 1685 |
return -1; |
| 1686 |
} |
| 1687 |
if ((req->cmd.buf[8] & 1) == 0 && req->cmd.lba) { |
| 1688 |
goto illegal_request;
|
| 1689 |
} |
| 1690 |
nb_sectors /= s->qdev.blocksize / 512;
|
| 1691 |
/* Returned value is the address of the last sector. */
|
| 1692 |
nb_sectors--; |
| 1693 |
/* Remember the new size for read/write sanity checking. */
|
| 1694 |
s->qdev.max_lba = nb_sectors; |
| 1695 |
/* Clip to 2TB, instead of returning capacity modulo 2TB. */
|
| 1696 |
if (nb_sectors > UINT32_MAX) {
|
| 1697 |
nb_sectors = UINT32_MAX; |
| 1698 |
} |
| 1699 |
outbuf[0] = (nb_sectors >> 24) & 0xff; |
| 1700 |
outbuf[1] = (nb_sectors >> 16) & 0xff; |
| 1701 |
outbuf[2] = (nb_sectors >> 8) & 0xff; |
| 1702 |
outbuf[3] = nb_sectors & 0xff; |
| 1703 |
outbuf[4] = 0; |
| 1704 |
outbuf[5] = 0; |
| 1705 |
outbuf[6] = s->qdev.blocksize >> 8; |
| 1706 |
outbuf[7] = 0; |
| 1707 |
break;
|
| 1708 |
case REQUEST_SENSE:
|
| 1709 |
/* Just return "NO SENSE". */
|
| 1710 |
buflen = scsi_build_sense(NULL, 0, outbuf, r->buflen, |
| 1711 |
(req->cmd.buf[1] & 1) == 0); |
| 1712 |
if (buflen < 0) { |
| 1713 |
goto illegal_request;
|
| 1714 |
} |
| 1715 |
break;
|
| 1716 |
case MECHANISM_STATUS:
|
| 1717 |
buflen = scsi_emulate_mechanism_status(s, outbuf); |
| 1718 |
if (buflen < 0) { |
| 1719 |
goto illegal_request;
|
| 1720 |
} |
| 1721 |
break;
|
| 1722 |
case GET_CONFIGURATION:
|
| 1723 |
buflen = scsi_get_configuration(s, outbuf); |
| 1724 |
if (buflen < 0) { |
| 1725 |
goto illegal_request;
|
| 1726 |
} |
| 1727 |
break;
|
| 1728 |
case GET_EVENT_STATUS_NOTIFICATION:
|
| 1729 |
buflen = scsi_get_event_status_notification(s, r, outbuf); |
| 1730 |
if (buflen < 0) { |
| 1731 |
goto illegal_request;
|
| 1732 |
} |
| 1733 |
break;
|
| 1734 |
case READ_DISC_INFORMATION:
|
| 1735 |
buflen = scsi_read_disc_information(s, r, outbuf); |
| 1736 |
if (buflen < 0) { |
| 1737 |
goto illegal_request;
|
| 1738 |
} |
| 1739 |
break;
|
| 1740 |
case READ_DVD_STRUCTURE:
|
| 1741 |
buflen = scsi_read_dvd_structure(s, r, outbuf); |
| 1742 |
if (buflen < 0) { |
| 1743 |
goto illegal_request;
|
| 1744 |
} |
| 1745 |
break;
|
| 1746 |
case SERVICE_ACTION_IN_16:
|
| 1747 |
/* Service Action In subcommands. */
|
| 1748 |
if ((req->cmd.buf[1] & 31) == SAI_READ_CAPACITY_16) { |
| 1749 |
DPRINTF("SAI READ CAPACITY(16)\n");
|
| 1750 |
memset(outbuf, 0, req->cmd.xfer);
|
| 1751 |
bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
| 1752 |
if (!nb_sectors) {
|
| 1753 |
scsi_check_condition(r, SENSE_CODE(LUN_NOT_READY)); |
| 1754 |
return -1; |
| 1755 |
} |
| 1756 |
if ((req->cmd.buf[14] & 1) == 0 && req->cmd.lba) { |
| 1757 |
goto illegal_request;
|
| 1758 |
} |
| 1759 |
nb_sectors /= s->qdev.blocksize / 512;
|
| 1760 |
/* Returned value is the address of the last sector. */
|
| 1761 |
nb_sectors--; |
| 1762 |
/* Remember the new size for read/write sanity checking. */
|
| 1763 |
s->qdev.max_lba = nb_sectors; |
| 1764 |
outbuf[0] = (nb_sectors >> 56) & 0xff; |
| 1765 |
outbuf[1] = (nb_sectors >> 48) & 0xff; |
| 1766 |
outbuf[2] = (nb_sectors >> 40) & 0xff; |
| 1767 |
outbuf[3] = (nb_sectors >> 32) & 0xff; |
| 1768 |
outbuf[4] = (nb_sectors >> 24) & 0xff; |
| 1769 |
outbuf[5] = (nb_sectors >> 16) & 0xff; |
| 1770 |
outbuf[6] = (nb_sectors >> 8) & 0xff; |
| 1771 |
outbuf[7] = nb_sectors & 0xff; |
| 1772 |
outbuf[8] = 0; |
| 1773 |
outbuf[9] = 0; |
| 1774 |
outbuf[10] = s->qdev.blocksize >> 8; |
| 1775 |
outbuf[11] = 0; |
| 1776 |
outbuf[12] = 0; |
| 1777 |
outbuf[13] = get_physical_block_exp(&s->qdev.conf);
|
| 1778 |
|
| 1779 |
/* set TPE bit if the format supports discard */
|
| 1780 |
if (s->qdev.conf.discard_granularity) {
|
| 1781 |
outbuf[14] = 0x80; |
| 1782 |
} |
| 1783 |
|
| 1784 |
/* Protection, exponent and lowest lba field left blank. */
|
| 1785 |
break;
|
| 1786 |
} |
| 1787 |
DPRINTF("Unsupported Service Action In\n");
|
| 1788 |
goto illegal_request;
|
| 1789 |
case SYNCHRONIZE_CACHE:
|
| 1790 |
/* The request is used as the AIO opaque value, so add a ref. */
|
| 1791 |
scsi_req_ref(&r->req); |
| 1792 |
bdrv_acct_start(s->qdev.conf.bs, &r->acct, 0, BDRV_ACCT_FLUSH);
|
| 1793 |
r->req.aiocb = bdrv_aio_flush(s->qdev.conf.bs, scsi_aio_complete, r); |
| 1794 |
return 0; |
| 1795 |
case SEEK_10:
|
| 1796 |
DPRINTF("Seek(10) (sector %" PRId64 ")\n", r->req.cmd.lba); |
| 1797 |
if (r->req.cmd.lba > s->qdev.max_lba) {
|
| 1798 |
goto illegal_lba;
|
| 1799 |
} |
| 1800 |
break;
|
| 1801 |
case MODE_SELECT:
|
| 1802 |
DPRINTF("Mode Select(6) (len %lu)\n", (long)r->req.cmd.xfer); |
| 1803 |
break;
|
| 1804 |
case MODE_SELECT_10:
|
| 1805 |
DPRINTF("Mode Select(10) (len %lu)\n", (long)r->req.cmd.xfer); |
| 1806 |
break;
|
| 1807 |
case UNMAP:
|
| 1808 |
DPRINTF("Unmap (len %lu)\n", (long)r->req.cmd.xfer); |
| 1809 |
break;
|
| 1810 |
case WRITE_SAME_10:
|
| 1811 |
case WRITE_SAME_16:
|
| 1812 |
nb_sectors = scsi_data_cdb_length(r->req.cmd.buf); |
| 1813 |
if (bdrv_is_read_only(s->qdev.conf.bs)) {
|
| 1814 |
scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); |
| 1815 |
return 0; |
| 1816 |
} |
| 1817 |
if (!check_lba_range(s, r->req.cmd.lba, nb_sectors)) {
|
| 1818 |
goto illegal_lba;
|
| 1819 |
} |
| 1820 |
|
| 1821 |
/*
|
| 1822 |
* We only support WRITE SAME with the unmap bit set for now.
|
| 1823 |
*/
|
| 1824 |
if (!(req->cmd.buf[1] & 0x8)) { |
| 1825 |
goto illegal_request;
|
| 1826 |
} |
| 1827 |
|
| 1828 |
/* The request is used as the AIO opaque value, so add a ref. */
|
| 1829 |
scsi_req_ref(&r->req); |
| 1830 |
r->req.aiocb = bdrv_aio_discard(s->qdev.conf.bs, |
| 1831 |
r->req.cmd.lba * (s->qdev.blocksize / 512),
|
| 1832 |
nb_sectors * (s->qdev.blocksize / 512),
|
| 1833 |
scsi_aio_complete, r); |
| 1834 |
return 0; |
| 1835 |
default:
|
| 1836 |
DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]); |
| 1837 |
scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE)); |
| 1838 |
return 0; |
| 1839 |
} |
| 1840 |
assert(!r->req.aiocb); |
| 1841 |
r->iov.iov_len = MIN(r->buflen, req->cmd.xfer); |
| 1842 |
if (r->iov.iov_len == 0) { |
| 1843 |
scsi_req_complete(&r->req, GOOD); |
| 1844 |
} |
| 1845 |
if (r->req.cmd.mode == SCSI_XFER_TO_DEV) {
|
| 1846 |
assert(r->iov.iov_len == req->cmd.xfer); |
| 1847 |
return -r->iov.iov_len;
|
| 1848 |
} else {
|
| 1849 |
return r->iov.iov_len;
|
| 1850 |
} |
| 1851 |
|
| 1852 |
illegal_request:
|
| 1853 |
if (r->req.status == -1) { |
| 1854 |
scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
| 1855 |
} |
| 1856 |
return 0; |
| 1857 |
|
| 1858 |
illegal_lba:
|
| 1859 |
scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); |
| 1860 |
return 0; |
| 1861 |
} |
| 1862 |
|
| 1863 |
/* Execute a scsi command. Returns the length of the data expected by the
|
| 1864 |
command. This will be Positive for data transfers from the device
|
| 1865 |
(eg. disk reads), negative for transfers to the device (eg. disk writes),
|
| 1866 |
and zero if the command does not transfer any data. */
|
| 1867 |
|
| 1868 |
static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf)
|
| 1869 |
{
|
| 1870 |
SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
| 1871 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
| 1872 |
uint32_t len; |
| 1873 |
uint8_t command; |
| 1874 |
|
| 1875 |
command = buf[0];
|
| 1876 |
|
| 1877 |
if (s->tray_open || !bdrv_is_inserted(s->qdev.conf.bs)) {
|
| 1878 |
scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
| 1879 |
return 0; |
| 1880 |
} |
| 1881 |
|
| 1882 |
len = scsi_data_cdb_length(r->req.cmd.buf); |
| 1883 |
switch (command) {
|
| 1884 |
case READ_6:
|
| 1885 |
case READ_10:
|
| 1886 |
case READ_12:
|
| 1887 |
case READ_16:
|
| 1888 |
DPRINTF("Read (sector %" PRId64 ", count %u)\n", r->req.cmd.lba, len); |
| 1889 |
if (r->req.cmd.buf[1] & 0xe0) { |
| 1890 |
goto illegal_request;
|
| 1891 |
} |
| 1892 |
if (!check_lba_range(s, r->req.cmd.lba, len)) {
|
| 1893 |
goto illegal_lba;
|
| 1894 |
} |
| 1895 |
r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512);
|
| 1896 |
r->sector_count = len * (s->qdev.blocksize / 512);
|
| 1897 |
break;
|
| 1898 |
case WRITE_6:
|
| 1899 |
case WRITE_10:
|
| 1900 |
case WRITE_12:
|
| 1901 |
case WRITE_16:
|
| 1902 |
case WRITE_VERIFY_10:
|
| 1903 |
case WRITE_VERIFY_12:
|
| 1904 |
case WRITE_VERIFY_16:
|
| 1905 |
if (bdrv_is_read_only(s->qdev.conf.bs)) {
|
| 1906 |
scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); |
| 1907 |
return 0; |
| 1908 |
} |
| 1909 |
/* fallthrough */
|
| 1910 |
case VERIFY_10:
|
| 1911 |
case VERIFY_12:
|
| 1912 |
case VERIFY_16:
|
| 1913 |
DPRINTF("Write %s(sector %" PRId64 ", count %u)\n", |
| 1914 |
(command & 0xe) == 0xe ? "And Verify " : "", |
| 1915 |
r->req.cmd.lba, len); |
| 1916 |
if (r->req.cmd.buf[1] & 0xe0) { |
| 1917 |
goto illegal_request;
|
| 1918 |
} |
| 1919 |
if (!check_lba_range(s, r->req.cmd.lba, len)) {
|
| 1920 |
goto illegal_lba;
|
| 1921 |
} |
| 1922 |
r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512);
|
| 1923 |
r->sector_count = len * (s->qdev.blocksize / 512);
|
| 1924 |
break;
|
| 1925 |
default:
|
| 1926 |
abort(); |
| 1927 |
illegal_request:
|
| 1928 |
scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
| 1929 |
return 0; |
| 1930 |
illegal_lba:
|
| 1931 |
scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); |
| 1932 |
return 0; |
| 1933 |
} |
| 1934 |
if (r->sector_count == 0) { |
| 1935 |
scsi_req_complete(&r->req, GOOD); |
| 1936 |
} |
| 1937 |
assert(r->iov.iov_len == 0);
|
| 1938 |
if (r->req.cmd.mode == SCSI_XFER_TO_DEV) {
|
| 1939 |
return -r->sector_count * 512; |
| 1940 |
} else {
|
| 1941 |
return r->sector_count * 512; |
| 1942 |
} |
| 1943 |
} |
| 1944 |
|
| 1945 |
static void scsi_disk_reset(DeviceState *dev) |
| 1946 |
{
|
| 1947 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev.qdev, dev); |
| 1948 |
uint64_t nb_sectors; |
| 1949 |
|
| 1950 |
scsi_device_purge_requests(&s->qdev, SENSE_CODE(RESET)); |
| 1951 |
|
| 1952 |
bdrv_get_geometry(s->qdev.conf.bs, &nb_sectors); |
| 1953 |
nb_sectors /= s->qdev.blocksize / 512;
|
| 1954 |
if (nb_sectors) {
|
| 1955 |
nb_sectors--; |
| 1956 |
} |
| 1957 |
s->qdev.max_lba = nb_sectors; |
| 1958 |
} |
| 1959 |
|
| 1960 |
static void scsi_destroy(SCSIDevice *dev) |
| 1961 |
{
|
| 1962 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
| 1963 |
|
| 1964 |
scsi_device_purge_requests(&s->qdev, SENSE_CODE(NO_SENSE)); |
| 1965 |
blockdev_mark_auto_del(s->qdev.conf.bs); |
| 1966 |
} |
| 1967 |
|
| 1968 |
static void scsi_disk_resize_cb(void *opaque) |
| 1969 |
{
|
| 1970 |
SCSIDiskState *s = opaque; |
| 1971 |
|
| 1972 |
/* SPC lists this sense code as available only for
|
| 1973 |
* direct-access devices.
|
| 1974 |
*/
|
| 1975 |
if (s->qdev.type == TYPE_DISK) {
|
| 1976 |
scsi_device_report_change(&s->qdev, SENSE_CODE(CAPACITY_CHANGED)); |
| 1977 |
} |
| 1978 |
} |
| 1979 |
|
| 1980 |
static void scsi_cd_change_media_cb(void *opaque, bool load) |
| 1981 |
{
|
| 1982 |
SCSIDiskState *s = opaque; |
| 1983 |
|
| 1984 |
/*
|
| 1985 |
* When a CD gets changed, we have to report an ejected state and
|
| 1986 |
* then a loaded state to guests so that they detect tray
|
| 1987 |
* open/close and media change events. Guests that do not use
|
| 1988 |
* GET_EVENT_STATUS_NOTIFICATION to detect such tray open/close
|
| 1989 |
* states rely on this behavior.
|
| 1990 |
*
|
| 1991 |
* media_changed governs the state machine used for unit attention
|
| 1992 |
* report. media_event is used by GET EVENT STATUS NOTIFICATION.
|
| 1993 |
*/
|
| 1994 |
s->media_changed = load; |
| 1995 |
s->tray_open = !load; |
| 1996 |
scsi_device_set_ua(&s->qdev, SENSE_CODE(UNIT_ATTENTION_NO_MEDIUM)); |
| 1997 |
s->media_event = true;
|
| 1998 |
s->eject_request = false;
|
| 1999 |
} |
| 2000 |
|
| 2001 |
static void scsi_cd_eject_request_cb(void *opaque, bool force) |
| 2002 |
{
|
| 2003 |
SCSIDiskState *s = opaque; |
| 2004 |
|
| 2005 |
s->eject_request = true;
|
| 2006 |
if (force) {
|
| 2007 |
s->tray_locked = false;
|
| 2008 |
} |
| 2009 |
} |
| 2010 |
|
| 2011 |
static bool scsi_cd_is_tray_open(void *opaque) |
| 2012 |
{
|
| 2013 |
return ((SCSIDiskState *)opaque)->tray_open;
|
| 2014 |
} |
| 2015 |
|
| 2016 |
static bool scsi_cd_is_medium_locked(void *opaque) |
| 2017 |
{
|
| 2018 |
return ((SCSIDiskState *)opaque)->tray_locked;
|
| 2019 |
} |
| 2020 |
|
| 2021 |
static const BlockDevOps scsi_disk_removable_block_ops = { |
| 2022 |
.change_media_cb = scsi_cd_change_media_cb, |
| 2023 |
.eject_request_cb = scsi_cd_eject_request_cb, |
| 2024 |
.is_tray_open = scsi_cd_is_tray_open, |
| 2025 |
.is_medium_locked = scsi_cd_is_medium_locked, |
| 2026 |
|
| 2027 |
.resize_cb = scsi_disk_resize_cb, |
| 2028 |
}; |
| 2029 |
|
| 2030 |
static const BlockDevOps scsi_disk_block_ops = { |
| 2031 |
.resize_cb = scsi_disk_resize_cb, |
| 2032 |
}; |
| 2033 |
|
| 2034 |
static void scsi_disk_unit_attention_reported(SCSIDevice *dev) |
| 2035 |
{
|
| 2036 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
| 2037 |
if (s->media_changed) {
|
| 2038 |
s->media_changed = false;
|
| 2039 |
scsi_device_set_ua(&s->qdev, SENSE_CODE(MEDIUM_CHANGED)); |
| 2040 |
} |
| 2041 |
} |
| 2042 |
|
| 2043 |
static int scsi_initfn(SCSIDevice *dev) |
| 2044 |
{
|
| 2045 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
| 2046 |
|
| 2047 |
if (!s->qdev.conf.bs) {
|
| 2048 |
error_report("drive property not set");
|
| 2049 |
return -1; |
| 2050 |
} |
| 2051 |
|
| 2052 |
if (!(s->features & (1 << SCSI_DISK_F_REMOVABLE)) && |
| 2053 |
!bdrv_is_inserted(s->qdev.conf.bs)) {
|
| 2054 |
error_report("Device needs media, but drive is empty");
|
| 2055 |
return -1; |
| 2056 |
} |
| 2057 |
|
| 2058 |
blkconf_serial(&s->qdev.conf, &s->serial); |
| 2059 |
if (dev->type == TYPE_DISK
|
| 2060 |
&& blkconf_geometry(&dev->conf, NULL, 65535, 255, 255) < 0) { |
| 2061 |
return -1; |
| 2062 |
} |
| 2063 |
|
| 2064 |
if (!s->version) {
|
| 2065 |
s->version = g_strdup(qemu_get_version()); |
| 2066 |
} |
| 2067 |
if (!s->vendor) {
|
| 2068 |
s->vendor = g_strdup("QEMU");
|
| 2069 |
} |
| 2070 |
|
| 2071 |
if (bdrv_is_sg(s->qdev.conf.bs)) {
|
| 2072 |
error_report("unwanted /dev/sg*");
|
| 2073 |
return -1; |
| 2074 |
} |
| 2075 |
|
| 2076 |
if (s->features & (1 << SCSI_DISK_F_REMOVABLE)) { |
| 2077 |
bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_disk_removable_block_ops, s); |
| 2078 |
} else {
|
| 2079 |
bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_disk_block_ops, s); |
| 2080 |
} |
| 2081 |
bdrv_set_buffer_alignment(s->qdev.conf.bs, s->qdev.blocksize); |
| 2082 |
|
| 2083 |
bdrv_iostatus_enable(s->qdev.conf.bs); |
| 2084 |
add_boot_device_path(s->qdev.conf.bootindex, &dev->qdev, NULL);
|
| 2085 |
return 0; |
| 2086 |
} |
| 2087 |
|
| 2088 |
static int scsi_hd_initfn(SCSIDevice *dev) |
| 2089 |
{
|
| 2090 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
| 2091 |
s->qdev.blocksize = s->qdev.conf.logical_block_size; |
| 2092 |
s->qdev.type = TYPE_DISK; |
| 2093 |
if (!s->product) {
|
| 2094 |
s->product = g_strdup("QEMU HARDDISK");
|
| 2095 |
} |
| 2096 |
return scsi_initfn(&s->qdev);
|
| 2097 |
} |
| 2098 |
|
| 2099 |
static int scsi_cd_initfn(SCSIDevice *dev) |
| 2100 |
{
|
| 2101 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
| 2102 |
s->qdev.blocksize = 2048;
|
| 2103 |
s->qdev.type = TYPE_ROM; |
| 2104 |
s->features |= 1 << SCSI_DISK_F_REMOVABLE;
|
| 2105 |
if (!s->product) {
|
| 2106 |
s->product = g_strdup("QEMU CD-ROM");
|
| 2107 |
} |
| 2108 |
return scsi_initfn(&s->qdev);
|
| 2109 |
} |
| 2110 |
|
| 2111 |
static int scsi_disk_initfn(SCSIDevice *dev) |
| 2112 |
{
|
| 2113 |
DriveInfo *dinfo; |
| 2114 |
|
| 2115 |
if (!dev->conf.bs) {
|
| 2116 |
return scsi_initfn(dev); /* ... and die there */ |
| 2117 |
} |
| 2118 |
|
| 2119 |
dinfo = drive_get_by_blockdev(dev->conf.bs); |
| 2120 |
if (dinfo->media_cd) {
|
| 2121 |
return scsi_cd_initfn(dev);
|
| 2122 |
} else {
|
| 2123 |
return scsi_hd_initfn(dev);
|
| 2124 |
} |
| 2125 |
} |
| 2126 |
|
| 2127 |
static const SCSIReqOps scsi_disk_emulate_reqops = { |
| 2128 |
.size = sizeof(SCSIDiskReq),
|
| 2129 |
.free_req = scsi_free_request, |
| 2130 |
.send_command = scsi_disk_emulate_command, |
| 2131 |
.read_data = scsi_disk_emulate_read_data, |
| 2132 |
.write_data = scsi_disk_emulate_write_data, |
| 2133 |
.get_buf = scsi_get_buf, |
| 2134 |
}; |
| 2135 |
|
| 2136 |
static const SCSIReqOps scsi_disk_dma_reqops = { |
| 2137 |
.size = sizeof(SCSIDiskReq),
|
| 2138 |
.free_req = scsi_free_request, |
| 2139 |
.send_command = scsi_disk_dma_command, |
| 2140 |
.read_data = scsi_read_data, |
| 2141 |
.write_data = scsi_write_data, |
| 2142 |
.cancel_io = scsi_cancel_io, |
| 2143 |
.get_buf = scsi_get_buf, |
| 2144 |
.load_request = scsi_disk_load_request, |
| 2145 |
.save_request = scsi_disk_save_request, |
| 2146 |
}; |
| 2147 |
|
| 2148 |
static const SCSIReqOps *const scsi_disk_reqops_dispatch[256] = { |
| 2149 |
[TEST_UNIT_READY] = &scsi_disk_emulate_reqops, |
| 2150 |
[INQUIRY] = &scsi_disk_emulate_reqops, |
| 2151 |
[MODE_SENSE] = &scsi_disk_emulate_reqops, |
| 2152 |
[MODE_SENSE_10] = &scsi_disk_emulate_reqops, |
| 2153 |
[START_STOP] = &scsi_disk_emulate_reqops, |
| 2154 |
[ALLOW_MEDIUM_REMOVAL] = &scsi_disk_emulate_reqops, |
| 2155 |
[READ_CAPACITY_10] = &scsi_disk_emulate_reqops, |
| 2156 |
[READ_TOC] = &scsi_disk_emulate_reqops, |
| 2157 |
[READ_DVD_STRUCTURE] = &scsi_disk_emulate_reqops, |
| 2158 |
[READ_DISC_INFORMATION] = &scsi_disk_emulate_reqops, |
| 2159 |
[GET_CONFIGURATION] = &scsi_disk_emulate_reqops, |
| 2160 |
[GET_EVENT_STATUS_NOTIFICATION] = &scsi_disk_emulate_reqops, |
| 2161 |
[MECHANISM_STATUS] = &scsi_disk_emulate_reqops, |
| 2162 |
[SERVICE_ACTION_IN_16] = &scsi_disk_emulate_reqops, |
| 2163 |
[REQUEST_SENSE] = &scsi_disk_emulate_reqops, |
| 2164 |
[SYNCHRONIZE_CACHE] = &scsi_disk_emulate_reqops, |
| 2165 |
[SEEK_10] = &scsi_disk_emulate_reqops, |
| 2166 |
[MODE_SELECT] = &scsi_disk_emulate_reqops, |
| 2167 |
[MODE_SELECT_10] = &scsi_disk_emulate_reqops, |
| 2168 |
[UNMAP] = &scsi_disk_emulate_reqops, |
| 2169 |
[WRITE_SAME_10] = &scsi_disk_emulate_reqops, |
| 2170 |
[WRITE_SAME_16] = &scsi_disk_emulate_reqops, |
| 2171 |
|
| 2172 |
[READ_6] = &scsi_disk_dma_reqops, |
| 2173 |
[READ_10] = &scsi_disk_dma_reqops, |
| 2174 |
[READ_12] = &scsi_disk_dma_reqops, |
| 2175 |
[READ_16] = &scsi_disk_dma_reqops, |
| 2176 |
[VERIFY_10] = &scsi_disk_dma_reqops, |
| 2177 |
[VERIFY_12] = &scsi_disk_dma_reqops, |
| 2178 |
[VERIFY_16] = &scsi_disk_dma_reqops, |
| 2179 |
[WRITE_6] = &scsi_disk_dma_reqops, |
| 2180 |
[WRITE_10] = &scsi_disk_dma_reqops, |
| 2181 |
[WRITE_12] = &scsi_disk_dma_reqops, |
| 2182 |
[WRITE_16] = &scsi_disk_dma_reqops, |
| 2183 |
[WRITE_VERIFY_10] = &scsi_disk_dma_reqops, |
| 2184 |
[WRITE_VERIFY_12] = &scsi_disk_dma_reqops, |
| 2185 |
[WRITE_VERIFY_16] = &scsi_disk_dma_reqops, |
| 2186 |
}; |
| 2187 |
|
| 2188 |
static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun,
|
| 2189 |
uint8_t *buf, void *hba_private)
|
| 2190 |
{
|
| 2191 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
| 2192 |
SCSIRequest *req; |
| 2193 |
const SCSIReqOps *ops;
|
| 2194 |
uint8_t command; |
| 2195 |
|
| 2196 |
command = buf[0];
|
| 2197 |
ops = scsi_disk_reqops_dispatch[command]; |
| 2198 |
if (!ops) {
|
| 2199 |
ops = &scsi_disk_emulate_reqops; |
| 2200 |
} |
| 2201 |
req = scsi_req_alloc(ops, &s->qdev, tag, lun, hba_private); |
| 2202 |
|
| 2203 |
#ifdef DEBUG_SCSI
|
| 2204 |
DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", lun, tag, buf[0]); |
| 2205 |
{
|
| 2206 |
int i;
|
| 2207 |
for (i = 1; i < req->cmd.len; i++) { |
| 2208 |
printf(" 0x%02x", buf[i]);
|
| 2209 |
} |
| 2210 |
printf("\n");
|
| 2211 |
} |
| 2212 |
#endif
|
| 2213 |
|
| 2214 |
return req;
|
| 2215 |
} |
| 2216 |
|
| 2217 |
#ifdef __linux__
|
| 2218 |
static int get_device_type(SCSIDiskState *s) |
| 2219 |
{
|
| 2220 |
BlockDriverState *bdrv = s->qdev.conf.bs; |
| 2221 |
uint8_t cmd[16];
|
| 2222 |
uint8_t buf[36];
|
| 2223 |
uint8_t sensebuf[8];
|
| 2224 |
sg_io_hdr_t io_header; |
| 2225 |
int ret;
|
| 2226 |
|
| 2227 |
memset(cmd, 0, sizeof(cmd)); |
| 2228 |
memset(buf, 0, sizeof(buf)); |
| 2229 |
cmd[0] = INQUIRY;
|
| 2230 |
cmd[4] = sizeof(buf); |
| 2231 |
|
| 2232 |
memset(&io_header, 0, sizeof(io_header)); |
| 2233 |
io_header.interface_id = 'S';
|
| 2234 |
io_header.dxfer_direction = SG_DXFER_FROM_DEV; |
| 2235 |
io_header.dxfer_len = sizeof(buf);
|
| 2236 |
io_header.dxferp = buf; |
| 2237 |
io_header.cmdp = cmd; |
| 2238 |
io_header.cmd_len = sizeof(cmd);
|
| 2239 |
io_header.mx_sb_len = sizeof(sensebuf);
|
| 2240 |
io_header.sbp = sensebuf; |
| 2241 |
io_header.timeout = 6000; /* XXX */ |
| 2242 |
|
| 2243 |
ret = bdrv_ioctl(bdrv, SG_IO, &io_header); |
| 2244 |
if (ret < 0 || io_header.driver_status || io_header.host_status) { |
| 2245 |
return -1; |
| 2246 |
} |
| 2247 |
s->qdev.type = buf[0];
|
| 2248 |
if (buf[1] & 0x80) { |
| 2249 |
s->features |= 1 << SCSI_DISK_F_REMOVABLE;
|
| 2250 |
} |
| 2251 |
return 0; |
| 2252 |
} |
| 2253 |
|
| 2254 |
static int scsi_block_initfn(SCSIDevice *dev) |
| 2255 |
{
|
| 2256 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
| 2257 |
int sg_version;
|
| 2258 |
int rc;
|
| 2259 |
|
| 2260 |
if (!s->qdev.conf.bs) {
|
| 2261 |
error_report("scsi-block: drive property not set");
|
| 2262 |
return -1; |
| 2263 |
} |
| 2264 |
|
| 2265 |
/* check we are using a driver managing SG_IO (version 3 and after) */
|
| 2266 |
if (bdrv_ioctl(s->qdev.conf.bs, SG_GET_VERSION_NUM, &sg_version) < 0 || |
| 2267 |
sg_version < 30000) {
|
| 2268 |
error_report("scsi-block: scsi generic interface too old");
|
| 2269 |
return -1; |
| 2270 |
} |
| 2271 |
|
| 2272 |
/* get device type from INQUIRY data */
|
| 2273 |
rc = get_device_type(s); |
| 2274 |
if (rc < 0) { |
| 2275 |
error_report("scsi-block: INQUIRY failed");
|
| 2276 |
return -1; |
| 2277 |
} |
| 2278 |
|
| 2279 |
/* Make a guess for the block size, we'll fix it when the guest sends.
|
| 2280 |
* READ CAPACITY. If they don't, they likely would assume these sizes
|
| 2281 |
* anyway. (TODO: check in /sys).
|
| 2282 |
*/
|
| 2283 |
if (s->qdev.type == TYPE_ROM || s->qdev.type == TYPE_WORM) {
|
| 2284 |
s->qdev.blocksize = 2048;
|
| 2285 |
} else {
|
| 2286 |
s->qdev.blocksize = 512;
|
| 2287 |
} |
| 2288 |
return scsi_initfn(&s->qdev);
|
| 2289 |
} |
| 2290 |
|
| 2291 |
static SCSIRequest *scsi_block_new_request(SCSIDevice *d, uint32_t tag,
|
| 2292 |
uint32_t lun, uint8_t *buf, |
| 2293 |
void *hba_private)
|
| 2294 |
{
|
| 2295 |
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
| 2296 |
|
| 2297 |
switch (buf[0]) { |
| 2298 |
case READ_6:
|
| 2299 |
case READ_10:
|
| 2300 |
case READ_12:
|
| 2301 |
case READ_16:
|
| 2302 |
case VERIFY_10:
|
| 2303 |
case VERIFY_12:
|
| 2304 |
case VERIFY_16:
|
| 2305 |
case WRITE_6:
|
| 2306 |
case WRITE_10:
|
| 2307 |
case WRITE_12:
|
| 2308 |
case WRITE_16:
|
| 2309 |
case WRITE_VERIFY_10:
|
| 2310 |
case WRITE_VERIFY_12:
|
| 2311 |
case WRITE_VERIFY_16:
|
| 2312 |
/* If we are not using O_DIRECT, we might read stale data from the
|
| 2313 |
* host cache if writes were made using other commands than these
|
| 2314 |
* ones (such as WRITE SAME or EXTENDED COPY, etc.). So, without
|
| 2315 |
* O_DIRECT everything must go through SG_IO.
|
| 2316 |
*/
|
| 2317 |
if (bdrv_get_flags(s->qdev.conf.bs) & BDRV_O_NOCACHE) {
|
| 2318 |
break;
|
| 2319 |
} |
| 2320 |
|
| 2321 |
/* MMC writing cannot be done via pread/pwrite, because it sometimes
|
| 2322 |
* involves writing beyond the maximum LBA or to negative LBA (lead-in).
|
| 2323 |
* And once you do these writes, reading from the block device is
|
| 2324 |
* unreliable, too. It is even possible that reads deliver random data
|
| 2325 |
* from the host page cache (this is probably a Linux bug).
|
| 2326 |
*
|
| 2327 |
* We might use scsi_disk_dma_reqops as long as no writing commands are
|
| 2328 |
* seen, but performance usually isn't paramount on optical media. So,
|
| 2329 |
* just make scsi-block operate the same as scsi-generic for them.
|
| 2330 |
*/
|
| 2331 |
if (s->qdev.type != TYPE_ROM) {
|
| 2332 |
return scsi_req_alloc(&scsi_disk_dma_reqops, &s->qdev, tag, lun,
|
| 2333 |
hba_private); |
| 2334 |
} |
| 2335 |
} |
| 2336 |
|
| 2337 |
return scsi_req_alloc(&scsi_generic_req_ops, &s->qdev, tag, lun,
|
| 2338 |
hba_private); |
| 2339 |
} |
| 2340 |
#endif
|
| 2341 |
|
| 2342 |
#define DEFINE_SCSI_DISK_PROPERTIES() \
|
| 2343 |
DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf), \ |
| 2344 |
DEFINE_PROP_STRING("ver", SCSIDiskState, version), \
|
| 2345 |
DEFINE_PROP_STRING("serial", SCSIDiskState, serial), \
|
| 2346 |
DEFINE_PROP_STRING("vendor", SCSIDiskState, vendor), \
|
| 2347 |
DEFINE_PROP_STRING("product", SCSIDiskState, product)
|
| 2348 |
|
| 2349 |
static Property scsi_hd_properties[] = {
|
| 2350 |
DEFINE_SCSI_DISK_PROPERTIES(), |
| 2351 |
DEFINE_PROP_BIT("removable", SCSIDiskState, features,
|
| 2352 |
SCSI_DISK_F_REMOVABLE, false),
|
| 2353 |
DEFINE_PROP_BIT("dpofua", SCSIDiskState, features,
|
| 2354 |
SCSI_DISK_F_DPOFUA, false),
|
| 2355 |
DEFINE_PROP_HEX64("wwn", SCSIDiskState, wwn, 0), |
| 2356 |
DEFINE_BLOCK_CHS_PROPERTIES(SCSIDiskState, qdev.conf), |
| 2357 |
DEFINE_PROP_END_OF_LIST(), |
| 2358 |
}; |
| 2359 |
|
| 2360 |
static const VMStateDescription vmstate_scsi_disk_state = { |
| 2361 |
.name = "scsi-disk",
|
| 2362 |
.version_id = 1,
|
| 2363 |
.minimum_version_id = 1,
|
| 2364 |
.minimum_version_id_old = 1,
|
| 2365 |
.fields = (VMStateField[]) {
|
| 2366 |
VMSTATE_SCSI_DEVICE(qdev, SCSIDiskState), |
| 2367 |
VMSTATE_BOOL(media_changed, SCSIDiskState), |
| 2368 |
VMSTATE_BOOL(media_event, SCSIDiskState), |
| 2369 |
VMSTATE_BOOL(eject_request, SCSIDiskState), |
| 2370 |
VMSTATE_BOOL(tray_open, SCSIDiskState), |
| 2371 |
VMSTATE_BOOL(tray_locked, SCSIDiskState), |
| 2372 |
VMSTATE_END_OF_LIST() |
| 2373 |
} |
| 2374 |
}; |
| 2375 |
|
| 2376 |
static void scsi_hd_class_initfn(ObjectClass *klass, void *data) |
| 2377 |
{
|
| 2378 |
DeviceClass *dc = DEVICE_CLASS(klass); |
| 2379 |
SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); |
| 2380 |
|
| 2381 |
sc->init = scsi_hd_initfn; |
| 2382 |
sc->destroy = scsi_destroy; |
| 2383 |
sc->alloc_req = scsi_new_request; |
| 2384 |
sc->unit_attention_reported = scsi_disk_unit_attention_reported; |
| 2385 |
dc->fw_name = "disk";
|
| 2386 |
dc->desc = "virtual SCSI disk";
|
| 2387 |
dc->reset = scsi_disk_reset; |
| 2388 |
dc->props = scsi_hd_properties; |
| 2389 |
dc->vmsd = &vmstate_scsi_disk_state; |
| 2390 |
} |
| 2391 |
|
| 2392 |
static TypeInfo scsi_hd_info = {
|
| 2393 |
.name = "scsi-hd",
|
| 2394 |
.parent = TYPE_SCSI_DEVICE, |
| 2395 |
.instance_size = sizeof(SCSIDiskState),
|
| 2396 |
.class_init = scsi_hd_class_initfn, |
| 2397 |
}; |
| 2398 |
|
| 2399 |
static Property scsi_cd_properties[] = {
|
| 2400 |
DEFINE_SCSI_DISK_PROPERTIES(), |
| 2401 |
DEFINE_PROP_HEX64("wwn", SCSIDiskState, wwn, 0), |
| 2402 |
DEFINE_PROP_END_OF_LIST(), |
| 2403 |
}; |
| 2404 |
|
| 2405 |
static void scsi_cd_class_initfn(ObjectClass *klass, void *data) |
| 2406 |
{
|
| 2407 |
DeviceClass *dc = DEVICE_CLASS(klass); |
| 2408 |
SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); |
| 2409 |
|
| 2410 |
sc->init = scsi_cd_initfn; |
| 2411 |
sc->destroy = scsi_destroy; |
| 2412 |
sc->alloc_req = scsi_new_request; |
| 2413 |
sc->unit_attention_reported = scsi_disk_unit_attention_reported; |
| 2414 |
dc->fw_name = "disk";
|
| 2415 |
dc->desc = "virtual SCSI CD-ROM";
|
| 2416 |
dc->reset = scsi_disk_reset; |
| 2417 |
dc->props = scsi_cd_properties; |
| 2418 |
dc->vmsd = &vmstate_scsi_disk_state; |
| 2419 |
} |
| 2420 |
|
| 2421 |
static TypeInfo scsi_cd_info = {
|
| 2422 |
.name = "scsi-cd",
|
| 2423 |
.parent = TYPE_SCSI_DEVICE, |
| 2424 |
.instance_size = sizeof(SCSIDiskState),
|
| 2425 |
.class_init = scsi_cd_class_initfn, |
| 2426 |
}; |
| 2427 |
|
| 2428 |
#ifdef __linux__
|
| 2429 |
static Property scsi_block_properties[] = {
|
| 2430 |
DEFINE_PROP_DRIVE("drive", SCSIDiskState, qdev.conf.bs),
|
| 2431 |
DEFINE_PROP_INT32("bootindex", SCSIDiskState, qdev.conf.bootindex, -1), |
| 2432 |
DEFINE_PROP_END_OF_LIST(), |
| 2433 |
}; |
| 2434 |
|
| 2435 |
static void scsi_block_class_initfn(ObjectClass *klass, void *data) |
| 2436 |
{
|
| 2437 |
DeviceClass *dc = DEVICE_CLASS(klass); |
| 2438 |
SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); |
| 2439 |
|
| 2440 |
sc->init = scsi_block_initfn; |
| 2441 |
sc->destroy = scsi_destroy; |
| 2442 |
sc->alloc_req = scsi_block_new_request; |
| 2443 |
dc->fw_name = "disk";
|
| 2444 |
dc->desc = "SCSI block device passthrough";
|
| 2445 |
dc->reset = scsi_disk_reset; |
| 2446 |
dc->props = scsi_block_properties; |
| 2447 |
dc->vmsd = &vmstate_scsi_disk_state; |
| 2448 |
} |
| 2449 |
|
| 2450 |
static TypeInfo scsi_block_info = {
|
| 2451 |
.name = "scsi-block",
|
| 2452 |
.parent = TYPE_SCSI_DEVICE, |
| 2453 |
.instance_size = sizeof(SCSIDiskState),
|
| 2454 |
.class_init = scsi_block_class_initfn, |
| 2455 |
}; |
| 2456 |
#endif
|
| 2457 |
|
| 2458 |
static Property scsi_disk_properties[] = {
|
| 2459 |
DEFINE_SCSI_DISK_PROPERTIES(), |
| 2460 |
DEFINE_PROP_BIT("removable", SCSIDiskState, features,
|
| 2461 |
SCSI_DISK_F_REMOVABLE, false),
|
| 2462 |
DEFINE_PROP_BIT("dpofua", SCSIDiskState, features,
|
| 2463 |
SCSI_DISK_F_DPOFUA, false),
|
| 2464 |
DEFINE_PROP_HEX64("wwn", SCSIDiskState, wwn, 0), |
| 2465 |
DEFINE_PROP_END_OF_LIST(), |
| 2466 |
}; |
| 2467 |
|
| 2468 |
static void scsi_disk_class_initfn(ObjectClass *klass, void *data) |
| 2469 |
{
|
| 2470 |
DeviceClass *dc = DEVICE_CLASS(klass); |
| 2471 |
SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass); |
| 2472 |
|
| 2473 |
sc->init = scsi_disk_initfn; |
| 2474 |
sc->destroy = scsi_destroy; |
| 2475 |
sc->alloc_req = scsi_new_request; |
| 2476 |
sc->unit_attention_reported = scsi_disk_unit_attention_reported; |
| 2477 |
dc->fw_name = "disk";
|
| 2478 |
dc->desc = "virtual SCSI disk or CD-ROM (legacy)";
|
| 2479 |
dc->reset = scsi_disk_reset; |
| 2480 |
dc->props = scsi_disk_properties; |
| 2481 |
dc->vmsd = &vmstate_scsi_disk_state; |
| 2482 |
} |
| 2483 |
|
| 2484 |
static TypeInfo scsi_disk_info = {
|
| 2485 |
.name = "scsi-disk",
|
| 2486 |
.parent = TYPE_SCSI_DEVICE, |
| 2487 |
.instance_size = sizeof(SCSIDiskState),
|
| 2488 |
.class_init = scsi_disk_class_initfn, |
| 2489 |
}; |
| 2490 |
|
| 2491 |
static void scsi_disk_register_types(void) |
| 2492 |
{
|
| 2493 |
type_register_static(&scsi_hd_info); |
| 2494 |
type_register_static(&scsi_cd_info); |
| 2495 |
#ifdef __linux__
|
| 2496 |
type_register_static(&scsi_block_info); |
| 2497 |
#endif
|
| 2498 |
type_register_static(&scsi_disk_info); |
| 2499 |
} |
| 2500 |
|
| 2501 |
type_init(scsi_disk_register_types) |