root / hw / scsi-disk.c @ f01b5931
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1 | 2e5d83bb | pbrook | /*
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2 | 2e5d83bb | pbrook | * SCSI Device emulation
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3 | 2e5d83bb | pbrook | *
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4 | 2e5d83bb | pbrook | * Copyright (c) 2006 CodeSourcery.
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5 | 2e5d83bb | pbrook | * Based on code by Fabrice Bellard
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6 | 2e5d83bb | pbrook | *
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7 | 2e5d83bb | pbrook | * Written by Paul Brook
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8 | ad3cea42 | Artyom Tarasenko | * Modifications:
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9 | ad3cea42 | Artyom Tarasenko | * 2009-Dec-12 Artyom Tarasenko : implemented stamdard inquiry for the case
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10 | ad3cea42 | Artyom Tarasenko | * when the allocation length of CDB is smaller
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11 | ad3cea42 | Artyom Tarasenko | * than 36.
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12 | ad3cea42 | Artyom Tarasenko | * 2009-Oct-13 Artyom Tarasenko : implemented the block descriptor in the
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13 | ad3cea42 | Artyom Tarasenko | * MODE SENSE response.
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14 | 2e5d83bb | pbrook | *
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15 | 8e31bf38 | Matthew Fernandez | * This code is licensed under the LGPL.
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16 | a917d384 | pbrook | *
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17 | a917d384 | pbrook | * Note that this file only handles the SCSI architecture model and device
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18 | 1d4db89c | balrog | * commands. Emulation of interface/link layer protocols is handled by
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19 | 1d4db89c | balrog | * the host adapter emulator.
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20 | 2e5d83bb | pbrook | */
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21 | 2e5d83bb | pbrook | |
22 | 2e5d83bb | pbrook | //#define DEBUG_SCSI
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23 | 2e5d83bb | pbrook | |
24 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
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25 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) \
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26 | 001faf32 | Blue Swirl | do { printf("scsi-disk: " fmt , ## __VA_ARGS__); } while (0) |
27 | 2e5d83bb | pbrook | #else
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28 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) do {} while(0) |
29 | 2e5d83bb | pbrook | #endif
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30 | 2e5d83bb | pbrook | |
31 | 001faf32 | Blue Swirl | #define BADF(fmt, ...) \
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32 | 001faf32 | Blue Swirl | do { fprintf(stderr, "scsi-disk: " fmt , ## __VA_ARGS__); } while (0) |
33 | 2e5d83bb | pbrook | |
34 | 87ecb68b | pbrook | #include "qemu-common.h" |
35 | 2f792016 | Markus Armbruster | #include "qemu-error.h" |
36 | 43b443b6 | Gerd Hoffmann | #include "scsi.h" |
37 | 0d65e1f8 | Gerd Hoffmann | #include "scsi-defs.h" |
38 | 666daa68 | Markus Armbruster | #include "sysemu.h" |
39 | 2446333c | Blue Swirl | #include "blockdev.h" |
40 | d1a0739d | Markus Armbruster | #include "block_int.h" |
41 | 22864256 | blueswir1 | |
42 | f0f72ffe | aurel32 | #define SCSI_DMA_BUF_SIZE 131072 |
43 | 57575058 | balrog | #define SCSI_MAX_INQUIRY_LEN 256 |
44 | a917d384 | pbrook | |
45 | 5dba48a8 | Kevin Wolf | #define SCSI_REQ_STATUS_RETRY 0x01 |
46 | 5dba48a8 | Kevin Wolf | #define SCSI_REQ_STATUS_RETRY_TYPE_MASK 0x06 |
47 | 5dba48a8 | Kevin Wolf | #define SCSI_REQ_STATUS_RETRY_READ 0x00 |
48 | 5dba48a8 | Kevin Wolf | #define SCSI_REQ_STATUS_RETRY_WRITE 0x02 |
49 | 78ced65e | Kevin Wolf | #define SCSI_REQ_STATUS_RETRY_FLUSH 0x04 |
50 | ea8a5d7f | aliguori | |
51 | d52affa7 | Gerd Hoffmann | typedef struct SCSIDiskState SCSIDiskState; |
52 | d52affa7 | Gerd Hoffmann | |
53 | 4c41d2ef | Gerd Hoffmann | typedef struct SCSIDiskReq { |
54 | 4c41d2ef | Gerd Hoffmann | SCSIRequest req; |
55 | a917d384 | pbrook | /* Both sector and sector_count are in terms of qemu 512 byte blocks. */
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56 | e035b43d | aliguori | uint64_t sector; |
57 | e035b43d | aliguori | uint32_t sector_count; |
58 | 7285477a | Paolo Bonzini | uint32_t buflen; |
59 | c87c0672 | aliguori | struct iovec iov;
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60 | c87c0672 | aliguori | QEMUIOVector qiov; |
61 | ea8a5d7f | aliguori | uint32_t status; |
62 | a597e79c | Christoph Hellwig | BlockAcctCookie acct; |
63 | 4c41d2ef | Gerd Hoffmann | } SCSIDiskReq; |
64 | a917d384 | pbrook | |
65 | d52affa7 | Gerd Hoffmann | struct SCSIDiskState
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66 | a917d384 | pbrook | { |
67 | d52affa7 | Gerd Hoffmann | SCSIDevice qdev; |
68 | 428c149b | Christoph Hellwig | BlockDriverState *bs; |
69 | a917d384 | pbrook | /* The qemu block layer uses a fixed 512 byte sector size.
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70 | a917d384 | pbrook | This is the number of 512 byte blocks in a single scsi sector. */
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71 | a917d384 | pbrook | int cluster_size;
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72 | 419e691f | Stefan Hajnoczi | uint32_t removable; |
73 | 274fb0e1 | aliguori | uint64_t max_lba; |
74 | 8a9c16f6 | Paolo Bonzini | bool media_changed;
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75 | 213189ab | Markus Armbruster | QEMUBH *bh; |
76 | 383b4d9b | Gerd Hoffmann | char *version;
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77 | a0fef654 | Markus Armbruster | char *serial;
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78 | ece0d5e9 | Markus Armbruster | bool tray_open;
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79 | 81b1008d | Markus Armbruster | bool tray_locked;
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80 | 2e5d83bb | pbrook | }; |
81 | 2e5d83bb | pbrook | |
82 | 5dba48a8 | Kevin Wolf | static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type); |
83 | 7285477a | Paolo Bonzini | static int scsi_disk_emulate_command(SCSIDiskReq *r); |
84 | 5dba48a8 | Kevin Wolf | |
85 | ad2d30f7 | Paolo Bonzini | static void scsi_free_request(SCSIRequest *req) |
86 | 4d611c9a | pbrook | { |
87 | ad2d30f7 | Paolo Bonzini | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
88 | ad2d30f7 | Paolo Bonzini | |
89 | 7285477a | Paolo Bonzini | if (r->iov.iov_base) {
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90 | 7285477a | Paolo Bonzini | qemu_vfree(r->iov.iov_base); |
91 | 7285477a | Paolo Bonzini | } |
92 | 4d611c9a | pbrook | } |
93 | 4d611c9a | pbrook | |
94 | b45ef674 | Paolo Bonzini | /* Helper function for command completion with sense. */
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95 | b45ef674 | Paolo Bonzini | static void scsi_check_condition(SCSIDiskReq *r, SCSISense sense) |
96 | ed3a34a3 | Gerd Hoffmann | { |
97 | 02fa69b6 | Blue Swirl | DPRINTF("Command complete tag=0x%x sense=%d/%d/%d\n",
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98 | 02fa69b6 | Blue Swirl | r->req.tag, sense.key, sense.asc, sense.ascq); |
99 | b45ef674 | Paolo Bonzini | scsi_req_build_sense(&r->req, sense); |
100 | b45ef674 | Paolo Bonzini | scsi_req_complete(&r->req, CHECK_CONDITION); |
101 | 4d611c9a | pbrook | } |
102 | 4d611c9a | pbrook | |
103 | 4d611c9a | pbrook | /* Cancel a pending data transfer. */
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104 | 5c6c0e51 | Hannes Reinecke | static void scsi_cancel_io(SCSIRequest *req) |
105 | 4d611c9a | pbrook | { |
106 | 5c6c0e51 | Hannes Reinecke | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
107 | 5c6c0e51 | Hannes Reinecke | |
108 | 5c6c0e51 | Hannes Reinecke | DPRINTF("Cancel tag=0x%x\n", req->tag);
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109 | 5c6c0e51 | Hannes Reinecke | if (r->req.aiocb) {
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110 | 5c6c0e51 | Hannes Reinecke | bdrv_aio_cancel(r->req.aiocb); |
111 | a917d384 | pbrook | } |
112 | 5c6c0e51 | Hannes Reinecke | r->req.aiocb = NULL;
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113 | a917d384 | pbrook | } |
114 | a917d384 | pbrook | |
115 | 103b40f5 | Paolo Bonzini | static uint32_t scsi_init_iovec(SCSIDiskReq *r)
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116 | 103b40f5 | Paolo Bonzini | { |
117 | 7285477a | Paolo Bonzini | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
118 | 7285477a | Paolo Bonzini | |
119 | 7285477a | Paolo Bonzini | if (!r->iov.iov_base) {
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120 | 7285477a | Paolo Bonzini | r->buflen = SCSI_DMA_BUF_SIZE; |
121 | 7285477a | Paolo Bonzini | r->iov.iov_base = qemu_blockalign(s->bs, r->buflen); |
122 | 7285477a | Paolo Bonzini | } |
123 | 7285477a | Paolo Bonzini | r->iov.iov_len = MIN(r->sector_count * 512, r->buflen);
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124 | 103b40f5 | Paolo Bonzini | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
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125 | 103b40f5 | Paolo Bonzini | return r->qiov.size / 512; |
126 | 103b40f5 | Paolo Bonzini | } |
127 | 103b40f5 | Paolo Bonzini | |
128 | a917d384 | pbrook | static void scsi_read_complete(void * opaque, int ret) |
129 | a917d384 | pbrook | { |
130 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
131 | a597e79c | Christoph Hellwig | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
132 | 5dba48a8 | Kevin Wolf | int n;
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133 | a917d384 | pbrook | |
134 | 8e321cc6 | Paolo Bonzini | if (r->req.aiocb != NULL) { |
135 | 8e321cc6 | Paolo Bonzini | r->req.aiocb = NULL;
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136 | 8e321cc6 | Paolo Bonzini | bdrv_acct_done(s->bs, &r->acct); |
137 | 8e321cc6 | Paolo Bonzini | } |
138 | a597e79c | Christoph Hellwig | |
139 | a917d384 | pbrook | if (ret) {
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140 | 5dba48a8 | Kevin Wolf | if (scsi_handle_rw_error(r, -ret, SCSI_REQ_STATUS_RETRY_READ)) {
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141 | 5dba48a8 | Kevin Wolf | return;
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142 | 5dba48a8 | Kevin Wolf | } |
143 | 4d611c9a | pbrook | } |
144 | 5dba48a8 | Kevin Wolf | |
145 | 103b40f5 | Paolo Bonzini | DPRINTF("Data ready tag=0x%x len=%zd\n", r->req.tag, r->qiov.size);
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146 | a917d384 | pbrook | |
147 | 103b40f5 | Paolo Bonzini | n = r->qiov.size / 512;
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148 | 5dba48a8 | Kevin Wolf | r->sector += n; |
149 | 5dba48a8 | Kevin Wolf | r->sector_count -= n; |
150 | 103b40f5 | Paolo Bonzini | scsi_req_data(&r->req, r->qiov.size); |
151 | 4d611c9a | pbrook | } |
152 | 4d611c9a | pbrook | |
153 | 0a4ac106 | Paolo Bonzini | static void scsi_flush_complete(void * opaque, int ret) |
154 | 0a4ac106 | Paolo Bonzini | { |
155 | 0a4ac106 | Paolo Bonzini | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
156 | 0a4ac106 | Paolo Bonzini | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
157 | 0a4ac106 | Paolo Bonzini | |
158 | 0a4ac106 | Paolo Bonzini | if (r->req.aiocb != NULL) { |
159 | 0a4ac106 | Paolo Bonzini | r->req.aiocb = NULL;
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160 | 0a4ac106 | Paolo Bonzini | bdrv_acct_done(s->bs, &r->acct); |
161 | 0a4ac106 | Paolo Bonzini | } |
162 | 0a4ac106 | Paolo Bonzini | |
163 | 0a4ac106 | Paolo Bonzini | if (ret < 0) { |
164 | 0a4ac106 | Paolo Bonzini | if (scsi_handle_rw_error(r, -ret, SCSI_REQ_STATUS_RETRY_FLUSH)) {
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165 | 0a4ac106 | Paolo Bonzini | return;
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166 | 0a4ac106 | Paolo Bonzini | } |
167 | 0a4ac106 | Paolo Bonzini | } |
168 | 0a4ac106 | Paolo Bonzini | |
169 | 0a4ac106 | Paolo Bonzini | scsi_req_complete(&r->req, GOOD); |
170 | 0a4ac106 | Paolo Bonzini | } |
171 | 5dba48a8 | Kevin Wolf | |
172 | 5c6c0e51 | Hannes Reinecke | /* Read more data from scsi device into buffer. */
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173 | 5c6c0e51 | Hannes Reinecke | static void scsi_read_data(SCSIRequest *req) |
174 | 2e5d83bb | pbrook | { |
175 | 5c6c0e51 | Hannes Reinecke | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
176 | 5dba48a8 | Kevin Wolf | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
177 | 2e5d83bb | pbrook | uint32_t n; |
178 | 2e5d83bb | pbrook | |
179 | a917d384 | pbrook | if (r->sector_count == (uint32_t)-1) { |
180 | aa2b1e89 | Bernhard Kohl | DPRINTF("Read buf_len=%zd\n", r->iov.iov_len);
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181 | a917d384 | pbrook | r->sector_count = 0;
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182 | ab9adc88 | Paolo Bonzini | scsi_req_data(&r->req, r->iov.iov_len); |
183 | a917d384 | pbrook | return;
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184 | 2e5d83bb | pbrook | } |
185 | a917d384 | pbrook | DPRINTF("Read sector_count=%d\n", r->sector_count);
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186 | a917d384 | pbrook | if (r->sector_count == 0) { |
187 | b45ef674 | Paolo Bonzini | /* This also clears the sense buffer for REQUEST SENSE. */
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188 | b45ef674 | Paolo Bonzini | scsi_req_complete(&r->req, GOOD); |
189 | a917d384 | pbrook | return;
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190 | 2e5d83bb | pbrook | } |
191 | 2e5d83bb | pbrook | |
192 | 6fa2c95f | Stefan Hajnoczi | /* No data transfer may already be in progress */
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193 | 6fa2c95f | Stefan Hajnoczi | assert(r->req.aiocb == NULL);
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194 | 6fa2c95f | Stefan Hajnoczi | |
195 | efb9ee02 | Hannes Reinecke | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) {
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196 | efb9ee02 | Hannes Reinecke | DPRINTF("Data transfer direction invalid\n");
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197 | efb9ee02 | Hannes Reinecke | scsi_read_complete(r, -EINVAL); |
198 | efb9ee02 | Hannes Reinecke | return;
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199 | efb9ee02 | Hannes Reinecke | } |
200 | efb9ee02 | Hannes Reinecke | |
201 | a1aff5bf | Markus Armbruster | if (s->tray_open) {
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202 | a1aff5bf | Markus Armbruster | scsi_read_complete(r, -ENOMEDIUM); |
203 | a1aff5bf | Markus Armbruster | } |
204 | 103b40f5 | Paolo Bonzini | n = scsi_init_iovec(r); |
205 | a597e79c | Christoph Hellwig | bdrv_acct_start(s->bs, &r->acct, n * BDRV_SECTOR_SIZE, BDRV_ACCT_READ); |
206 | 428c149b | Christoph Hellwig | r->req.aiocb = bdrv_aio_readv(s->bs, r->sector, &r->qiov, n, |
207 | c87c0672 | aliguori | scsi_read_complete, r); |
208 | d33ea50a | Kevin Wolf | if (r->req.aiocb == NULL) { |
209 | d33ea50a | Kevin Wolf | scsi_read_complete(r, -EIO); |
210 | d33ea50a | Kevin Wolf | } |
211 | 2e5d83bb | pbrook | } |
212 | 2e5d83bb | pbrook | |
213 | 5dba48a8 | Kevin Wolf | static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type) |
214 | 5dba48a8 | Kevin Wolf | { |
215 | 5dba48a8 | Kevin Wolf | int is_read = (type == SCSI_REQ_STATUS_RETRY_READ);
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216 | 4c41d2ef | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
217 | 5dba48a8 | Kevin Wolf | BlockErrorAction action = bdrv_get_on_error(s->bs, is_read); |
218 | ea8a5d7f | aliguori | |
219 | 380f640f | Luiz Capitulino | if (action == BLOCK_ERR_IGNORE) {
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220 | 5dba48a8 | Kevin Wolf | bdrv_mon_event(s->bs, BDRV_ACTION_IGNORE, is_read); |
221 | ea8a5d7f | aliguori | return 0; |
222 | 380f640f | Luiz Capitulino | } |
223 | ea8a5d7f | aliguori | |
224 | ea8a5d7f | aliguori | if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
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225 | ea8a5d7f | aliguori | || action == BLOCK_ERR_STOP_ANY) { |
226 | 5dba48a8 | Kevin Wolf | |
227 | 5dba48a8 | Kevin Wolf | type &= SCSI_REQ_STATUS_RETRY_TYPE_MASK; |
228 | 5dba48a8 | Kevin Wolf | r->status |= SCSI_REQ_STATUS_RETRY | type; |
229 | 5dba48a8 | Kevin Wolf | |
230 | 5dba48a8 | Kevin Wolf | bdrv_mon_event(s->bs, BDRV_ACTION_STOP, is_read); |
231 | 0461d5a6 | Luiz Capitulino | vm_stop(RUN_STATE_IO_ERROR); |
232 | 9fb118e6 | Luiz Capitulino | bdrv_iostatus_set_err(s->bs, error); |
233 | ea8a5d7f | aliguori | } else {
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234 | efb9ee02 | Hannes Reinecke | switch (error) {
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235 | 7e218df5 | Paolo Bonzini | case ENOMEDIUM:
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236 | 7e218df5 | Paolo Bonzini | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
237 | 7e218df5 | Paolo Bonzini | break;
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238 | efb9ee02 | Hannes Reinecke | case ENOMEM:
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239 | b45ef674 | Paolo Bonzini | scsi_check_condition(r, SENSE_CODE(TARGET_FAILURE)); |
240 | efb9ee02 | Hannes Reinecke | break;
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241 | efb9ee02 | Hannes Reinecke | case EINVAL:
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242 | b45ef674 | Paolo Bonzini | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
243 | efb9ee02 | Hannes Reinecke | break;
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244 | efb9ee02 | Hannes Reinecke | default:
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245 | b45ef674 | Paolo Bonzini | scsi_check_condition(r, SENSE_CODE(IO_ERROR)); |
246 | efb9ee02 | Hannes Reinecke | break;
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247 | a1f0cce2 | Hannes Reinecke | } |
248 | 5dba48a8 | Kevin Wolf | bdrv_mon_event(s->bs, BDRV_ACTION_REPORT, is_read); |
249 | ea8a5d7f | aliguori | } |
250 | ea8a5d7f | aliguori | return 1; |
251 | ea8a5d7f | aliguori | } |
252 | ea8a5d7f | aliguori | |
253 | 4d611c9a | pbrook | static void scsi_write_complete(void * opaque, int ret) |
254 | 4d611c9a | pbrook | { |
255 | 4c41d2ef | Gerd Hoffmann | SCSIDiskReq *r = (SCSIDiskReq *)opaque; |
256 | a597e79c | Christoph Hellwig | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
257 | ea8a5d7f | aliguori | uint32_t n; |
258 | ea8a5d7f | aliguori | |
259 | 8e321cc6 | Paolo Bonzini | if (r->req.aiocb != NULL) { |
260 | 8e321cc6 | Paolo Bonzini | r->req.aiocb = NULL;
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261 | 8e321cc6 | Paolo Bonzini | bdrv_acct_done(s->bs, &r->acct); |
262 | 8e321cc6 | Paolo Bonzini | } |
263 | a597e79c | Christoph Hellwig | |
264 | 4d611c9a | pbrook | if (ret) {
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265 | 5dba48a8 | Kevin Wolf | if (scsi_handle_rw_error(r, -ret, SCSI_REQ_STATUS_RETRY_WRITE)) {
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266 | ea8a5d7f | aliguori | return;
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267 | 5dba48a8 | Kevin Wolf | } |
268 | 4d611c9a | pbrook | } |
269 | 4d611c9a | pbrook | |
270 | 103b40f5 | Paolo Bonzini | n = r->qiov.size / 512;
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271 | ea8a5d7f | aliguori | r->sector += n; |
272 | ea8a5d7f | aliguori | r->sector_count -= n; |
273 | a917d384 | pbrook | if (r->sector_count == 0) { |
274 | b45ef674 | Paolo Bonzini | scsi_req_complete(&r->req, GOOD); |
275 | a917d384 | pbrook | } else {
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276 | 103b40f5 | Paolo Bonzini | scsi_init_iovec(r); |
277 | 103b40f5 | Paolo Bonzini | DPRINTF("Write complete tag=0x%x more=%d\n", r->req.tag, r->qiov.size);
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278 | 103b40f5 | Paolo Bonzini | scsi_req_data(&r->req, r->qiov.size); |
279 | 4d611c9a | pbrook | } |
280 | 4d611c9a | pbrook | } |
281 | 4d611c9a | pbrook | |
282 | 42741212 | Paolo Bonzini | static void scsi_write_data(SCSIRequest *req) |
283 | ea8a5d7f | aliguori | { |
284 | 5c6c0e51 | Hannes Reinecke | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
285 | 4c41d2ef | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
286 | ea8a5d7f | aliguori | uint32_t n; |
287 | ea8a5d7f | aliguori | |
288 | 6fa2c95f | Stefan Hajnoczi | /* No data transfer may already be in progress */
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289 | 6fa2c95f | Stefan Hajnoczi | assert(r->req.aiocb == NULL);
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290 | 6fa2c95f | Stefan Hajnoczi | |
291 | efb9ee02 | Hannes Reinecke | if (r->req.cmd.mode != SCSI_XFER_TO_DEV) {
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292 | efb9ee02 | Hannes Reinecke | DPRINTF("Data transfer direction invalid\n");
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293 | efb9ee02 | Hannes Reinecke | scsi_write_complete(r, -EINVAL); |
294 | 42741212 | Paolo Bonzini | return;
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295 | efb9ee02 | Hannes Reinecke | } |
296 | efb9ee02 | Hannes Reinecke | |
297 | 103b40f5 | Paolo Bonzini | n = r->qiov.size / 512;
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298 | ea8a5d7f | aliguori | if (n) {
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299 | a1aff5bf | Markus Armbruster | if (s->tray_open) {
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300 | a1aff5bf | Markus Armbruster | scsi_write_complete(r, -ENOMEDIUM); |
301 | a1aff5bf | Markus Armbruster | } |
302 | a597e79c | Christoph Hellwig | bdrv_acct_start(s->bs, &r->acct, n * BDRV_SECTOR_SIZE, BDRV_ACCT_WRITE); |
303 | 428c149b | Christoph Hellwig | r->req.aiocb = bdrv_aio_writev(s->bs, r->sector, &r->qiov, n, |
304 | 103b40f5 | Paolo Bonzini | scsi_write_complete, r); |
305 | d33ea50a | Kevin Wolf | if (r->req.aiocb == NULL) { |
306 | a1f0cce2 | Hannes Reinecke | scsi_write_complete(r, -ENOMEM); |
307 | d33ea50a | Kevin Wolf | } |
308 | ea8a5d7f | aliguori | } else {
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309 | 103b40f5 | Paolo Bonzini | /* Called for the first time. Ask the driver to send us more data. */
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310 | ea8a5d7f | aliguori | scsi_write_complete(r, 0);
|
311 | ea8a5d7f | aliguori | } |
312 | a917d384 | pbrook | } |
313 | 2e5d83bb | pbrook | |
314 | 213189ab | Markus Armbruster | static void scsi_dma_restart_bh(void *opaque) |
315 | ea8a5d7f | aliguori | { |
316 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = opaque; |
317 | 9af99d98 | Gerd Hoffmann | SCSIRequest *req; |
318 | 9af99d98 | Gerd Hoffmann | SCSIDiskReq *r; |
319 | 213189ab | Markus Armbruster | |
320 | 213189ab | Markus Armbruster | qemu_bh_delete(s->bh); |
321 | 213189ab | Markus Armbruster | s->bh = NULL;
|
322 | ea8a5d7f | aliguori | |
323 | 9af99d98 | Gerd Hoffmann | QTAILQ_FOREACH(req, &s->qdev.requests, next) { |
324 | 9af99d98 | Gerd Hoffmann | r = DO_UPCAST(SCSIDiskReq, req, req); |
325 | ea8a5d7f | aliguori | if (r->status & SCSI_REQ_STATUS_RETRY) {
|
326 | 5dba48a8 | Kevin Wolf | int status = r->status;
|
327 | 78ced65e | Kevin Wolf | int ret;
|
328 | 78ced65e | Kevin Wolf | |
329 | 5dba48a8 | Kevin Wolf | r->status &= |
330 | 5dba48a8 | Kevin Wolf | ~(SCSI_REQ_STATUS_RETRY | SCSI_REQ_STATUS_RETRY_TYPE_MASK); |
331 | 5dba48a8 | Kevin Wolf | |
332 | 5dba48a8 | Kevin Wolf | switch (status & SCSI_REQ_STATUS_RETRY_TYPE_MASK) {
|
333 | 5dba48a8 | Kevin Wolf | case SCSI_REQ_STATUS_RETRY_READ:
|
334 | 5c6c0e51 | Hannes Reinecke | scsi_read_data(&r->req); |
335 | 5dba48a8 | Kevin Wolf | break;
|
336 | 5dba48a8 | Kevin Wolf | case SCSI_REQ_STATUS_RETRY_WRITE:
|
337 | 5c6c0e51 | Hannes Reinecke | scsi_write_data(&r->req); |
338 | 5dba48a8 | Kevin Wolf | break;
|
339 | 78ced65e | Kevin Wolf | case SCSI_REQ_STATUS_RETRY_FLUSH:
|
340 | 7285477a | Paolo Bonzini | ret = scsi_disk_emulate_command(r); |
341 | 78ced65e | Kevin Wolf | if (ret == 0) { |
342 | b45ef674 | Paolo Bonzini | scsi_req_complete(&r->req, GOOD); |
343 | 78ced65e | Kevin Wolf | } |
344 | 5dba48a8 | Kevin Wolf | } |
345 | ea8a5d7f | aliguori | } |
346 | ea8a5d7f | aliguori | } |
347 | ea8a5d7f | aliguori | } |
348 | ea8a5d7f | aliguori | |
349 | 1dfb4dd9 | Luiz Capitulino | static void scsi_dma_restart_cb(void *opaque, int running, RunState state) |
350 | 213189ab | Markus Armbruster | { |
351 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = opaque; |
352 | 213189ab | Markus Armbruster | |
353 | f01b5931 | Paolo Bonzini | if (!running) {
|
354 | 213189ab | Markus Armbruster | return;
|
355 | f01b5931 | Paolo Bonzini | } |
356 | 213189ab | Markus Armbruster | if (!s->bh) {
|
357 | 213189ab | Markus Armbruster | s->bh = qemu_bh_new(scsi_dma_restart_bh, s); |
358 | 213189ab | Markus Armbruster | qemu_bh_schedule(s->bh); |
359 | 213189ab | Markus Armbruster | } |
360 | 213189ab | Markus Armbruster | } |
361 | 213189ab | Markus Armbruster | |
362 | a917d384 | pbrook | /* Return a pointer to the data buffer. */
|
363 | 5c6c0e51 | Hannes Reinecke | static uint8_t *scsi_get_buf(SCSIRequest *req)
|
364 | a917d384 | pbrook | { |
365 | 5c6c0e51 | Hannes Reinecke | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
366 | 2e5d83bb | pbrook | |
367 | 3f4cb3d3 | blueswir1 | return (uint8_t *)r->iov.iov_base;
|
368 | 2e5d83bb | pbrook | } |
369 | 2e5d83bb | pbrook | |
370 | 0b06c059 | Gerd Hoffmann | static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf) |
371 | 0b06c059 | Gerd Hoffmann | { |
372 | 383b4d9b | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
373 | 0b06c059 | Gerd Hoffmann | int buflen = 0; |
374 | 0b06c059 | Gerd Hoffmann | |
375 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[1] & 0x2) { |
376 | 0b06c059 | Gerd Hoffmann | /* Command support data - optional, not implemented */
|
377 | 0b06c059 | Gerd Hoffmann | BADF("optional INQUIRY command support request not implemented\n");
|
378 | 0b06c059 | Gerd Hoffmann | return -1; |
379 | 0b06c059 | Gerd Hoffmann | } |
380 | 0b06c059 | Gerd Hoffmann | |
381 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[1] & 0x1) { |
382 | 0b06c059 | Gerd Hoffmann | /* Vital product data */
|
383 | 0b06c059 | Gerd Hoffmann | uint8_t page_code = req->cmd.buf[2];
|
384 | 0b06c059 | Gerd Hoffmann | if (req->cmd.xfer < 4) { |
385 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (EVPD[%02X]) buffer size %zd is "
|
386 | 0b06c059 | Gerd Hoffmann | "less than 4\n", page_code, req->cmd.xfer);
|
387 | 0b06c059 | Gerd Hoffmann | return -1; |
388 | 0b06c059 | Gerd Hoffmann | } |
389 | 0b06c059 | Gerd Hoffmann | |
390 | f37bd73b | Hannes Reinecke | if (s->qdev.type == TYPE_ROM) {
|
391 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 5;
|
392 | 0b06c059 | Gerd Hoffmann | } else {
|
393 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0;
|
394 | 0b06c059 | Gerd Hoffmann | } |
395 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = page_code ; // this page
|
396 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x00;
|
397 | 0b06c059 | Gerd Hoffmann | |
398 | 0b06c059 | Gerd Hoffmann | switch (page_code) {
|
399 | 0b06c059 | Gerd Hoffmann | case 0x00: /* Supported page codes, mandatory */ |
400 | 39d98982 | Hannes Reinecke | { |
401 | 39d98982 | Hannes Reinecke | int pages;
|
402 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Supported pages] "
|
403 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
404 | 39d98982 | Hannes Reinecke | pages = buflen++; |
405 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x00; // list of supported pages (this page) |
406 | f01b5931 | Paolo Bonzini | if (s->serial) {
|
407 | 3e1c0c9a | Hannes Reinecke | outbuf[buflen++] = 0x80; // unit serial number |
408 | f01b5931 | Paolo Bonzini | } |
409 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x83; // device identification |
410 | f37bd73b | Hannes Reinecke | if (s->qdev.type == TYPE_DISK) {
|
411 | ea3bd56f | Christoph Hellwig | outbuf[buflen++] = 0xb0; // block limits |
412 | ea3bd56f | Christoph Hellwig | outbuf[buflen++] = 0xb2; // thin provisioning |
413 | 39d98982 | Hannes Reinecke | } |
414 | 39d98982 | Hannes Reinecke | outbuf[pages] = buflen - pages - 1; // number of pages |
415 | 0b06c059 | Gerd Hoffmann | break;
|
416 | 39d98982 | Hannes Reinecke | } |
417 | 0b06c059 | Gerd Hoffmann | case 0x80: /* Device serial number, optional */ |
418 | 0b06c059 | Gerd Hoffmann | { |
419 | 3e1c0c9a | Hannes Reinecke | int l;
|
420 | 0b06c059 | Gerd Hoffmann | |
421 | 3e1c0c9a | Hannes Reinecke | if (!s->serial) {
|
422 | 3e1c0c9a | Hannes Reinecke | DPRINTF("Inquiry (EVPD[Serial number] not supported\n");
|
423 | 3e1c0c9a | Hannes Reinecke | return -1; |
424 | 3e1c0c9a | Hannes Reinecke | } |
425 | 3e1c0c9a | Hannes Reinecke | |
426 | 3e1c0c9a | Hannes Reinecke | l = strlen(s->serial); |
427 | f01b5931 | Paolo Bonzini | if (l > req->cmd.xfer) {
|
428 | 0b06c059 | Gerd Hoffmann | l = req->cmd.xfer; |
429 | f01b5931 | Paolo Bonzini | } |
430 | f01b5931 | Paolo Bonzini | if (l > 20) { |
431 | 0b06c059 | Gerd Hoffmann | l = 20;
|
432 | f01b5931 | Paolo Bonzini | } |
433 | 0b06c059 | Gerd Hoffmann | |
434 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Serial number] "
|
435 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
436 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = l; |
437 | a0fef654 | Markus Armbruster | memcpy(outbuf+buflen, s->serial, l); |
438 | 0b06c059 | Gerd Hoffmann | buflen += l; |
439 | 0b06c059 | Gerd Hoffmann | break;
|
440 | 0b06c059 | Gerd Hoffmann | } |
441 | 0b06c059 | Gerd Hoffmann | |
442 | 0b06c059 | Gerd Hoffmann | case 0x83: /* Device identification page, mandatory */ |
443 | 0b06c059 | Gerd Hoffmann | { |
444 | 0b06c059 | Gerd Hoffmann | int max_len = 255 - 8; |
445 | 428c149b | Christoph Hellwig | int id_len = strlen(bdrv_get_device_name(s->bs));
|
446 | 0b06c059 | Gerd Hoffmann | |
447 | f01b5931 | Paolo Bonzini | if (id_len > max_len) {
|
448 | 0b06c059 | Gerd Hoffmann | id_len = max_len; |
449 | f01b5931 | Paolo Bonzini | } |
450 | 0b06c059 | Gerd Hoffmann | DPRINTF("Inquiry EVPD[Device identification] "
|
451 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", req->cmd.xfer);
|
452 | 0b06c059 | Gerd Hoffmann | |
453 | 39d98982 | Hannes Reinecke | outbuf[buflen++] = 4 + id_len;
|
454 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0x2; // ASCII |
455 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0; // not officially assigned |
456 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = 0; // reserved |
457 | 0b06c059 | Gerd Hoffmann | outbuf[buflen++] = id_len; // length of data following
|
458 | 0b06c059 | Gerd Hoffmann | |
459 | 428c149b | Christoph Hellwig | memcpy(outbuf+buflen, bdrv_get_device_name(s->bs), id_len); |
460 | 0b06c059 | Gerd Hoffmann | buflen += id_len; |
461 | 0b06c059 | Gerd Hoffmann | break;
|
462 | 0b06c059 | Gerd Hoffmann | } |
463 | ea3bd56f | Christoph Hellwig | case 0xb0: /* block limits */ |
464 | ee3659e3 | Christoph Hellwig | { |
465 | ea3bd56f | Christoph Hellwig | unsigned int unmap_sectors = |
466 | ea3bd56f | Christoph Hellwig | s->qdev.conf.discard_granularity / s->qdev.blocksize; |
467 | 8cfacf07 | Christoph Hellwig | unsigned int min_io_size = |
468 | 8cfacf07 | Christoph Hellwig | s->qdev.conf.min_io_size / s->qdev.blocksize; |
469 | 8cfacf07 | Christoph Hellwig | unsigned int opt_io_size = |
470 | 8cfacf07 | Christoph Hellwig | s->qdev.conf.opt_io_size / s->qdev.blocksize; |
471 | ee3659e3 | Christoph Hellwig | |
472 | f37bd73b | Hannes Reinecke | if (s->qdev.type == TYPE_ROM) {
|
473 | 39d98982 | Hannes Reinecke | DPRINTF("Inquiry (EVPD[%02X] not supported for CDROM\n",
|
474 | 39d98982 | Hannes Reinecke | page_code); |
475 | 39d98982 | Hannes Reinecke | return -1; |
476 | 39d98982 | Hannes Reinecke | } |
477 | ee3659e3 | Christoph Hellwig | /* required VPD size with unmap support */
|
478 | ee3659e3 | Christoph Hellwig | outbuf[3] = buflen = 0x3c; |
479 | ee3659e3 | Christoph Hellwig | |
480 | ee3659e3 | Christoph Hellwig | memset(outbuf + 4, 0, buflen - 4); |
481 | ee3659e3 | Christoph Hellwig | |
482 | ee3659e3 | Christoph Hellwig | /* optimal transfer length granularity */
|
483 | ee3659e3 | Christoph Hellwig | outbuf[6] = (min_io_size >> 8) & 0xff; |
484 | ee3659e3 | Christoph Hellwig | outbuf[7] = min_io_size & 0xff; |
485 | ee3659e3 | Christoph Hellwig | |
486 | ee3659e3 | Christoph Hellwig | /* optimal transfer length */
|
487 | ee3659e3 | Christoph Hellwig | outbuf[12] = (opt_io_size >> 24) & 0xff; |
488 | ee3659e3 | Christoph Hellwig | outbuf[13] = (opt_io_size >> 16) & 0xff; |
489 | ee3659e3 | Christoph Hellwig | outbuf[14] = (opt_io_size >> 8) & 0xff; |
490 | ee3659e3 | Christoph Hellwig | outbuf[15] = opt_io_size & 0xff; |
491 | ea3bd56f | Christoph Hellwig | |
492 | ea3bd56f | Christoph Hellwig | /* optimal unmap granularity */
|
493 | ea3bd56f | Christoph Hellwig | outbuf[28] = (unmap_sectors >> 24) & 0xff; |
494 | ea3bd56f | Christoph Hellwig | outbuf[29] = (unmap_sectors >> 16) & 0xff; |
495 | ea3bd56f | Christoph Hellwig | outbuf[30] = (unmap_sectors >> 8) & 0xff; |
496 | ea3bd56f | Christoph Hellwig | outbuf[31] = unmap_sectors & 0xff; |
497 | ea3bd56f | Christoph Hellwig | break;
|
498 | ea3bd56f | Christoph Hellwig | } |
499 | ea3bd56f | Christoph Hellwig | case 0xb2: /* thin provisioning */ |
500 | ea3bd56f | Christoph Hellwig | { |
501 | ea3bd56f | Christoph Hellwig | outbuf[3] = buflen = 8; |
502 | ea3bd56f | Christoph Hellwig | outbuf[4] = 0; |
503 | ea3bd56f | Christoph Hellwig | outbuf[5] = 0x40; /* write same with unmap supported */ |
504 | ea3bd56f | Christoph Hellwig | outbuf[6] = 0; |
505 | ea3bd56f | Christoph Hellwig | outbuf[7] = 0; |
506 | ee3659e3 | Christoph Hellwig | break;
|
507 | ee3659e3 | Christoph Hellwig | } |
508 | 0b06c059 | Gerd Hoffmann | default:
|
509 | 0b06c059 | Gerd Hoffmann | BADF("Error: unsupported Inquiry (EVPD[%02X]) "
|
510 | 0b06c059 | Gerd Hoffmann | "buffer size %zd\n", page_code, req->cmd.xfer);
|
511 | 0b06c059 | Gerd Hoffmann | return -1; |
512 | 0b06c059 | Gerd Hoffmann | } |
513 | 0b06c059 | Gerd Hoffmann | /* done with EVPD */
|
514 | 0b06c059 | Gerd Hoffmann | return buflen;
|
515 | 0b06c059 | Gerd Hoffmann | } |
516 | 0b06c059 | Gerd Hoffmann | |
517 | 0b06c059 | Gerd Hoffmann | /* Standard INQUIRY data */
|
518 | 0b06c059 | Gerd Hoffmann | if (req->cmd.buf[2] != 0) { |
519 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (STANDARD) page or code "
|
520 | 0b06c059 | Gerd Hoffmann | "is non-zero [%02X]\n", req->cmd.buf[2]); |
521 | 0b06c059 | Gerd Hoffmann | return -1; |
522 | 0b06c059 | Gerd Hoffmann | } |
523 | 0b06c059 | Gerd Hoffmann | |
524 | 0b06c059 | Gerd Hoffmann | /* PAGE CODE == 0 */
|
525 | 0b06c059 | Gerd Hoffmann | if (req->cmd.xfer < 5) { |
526 | 0b06c059 | Gerd Hoffmann | BADF("Error: Inquiry (STANDARD) buffer size %zd "
|
527 | 0b06c059 | Gerd Hoffmann | "is less than 5\n", req->cmd.xfer);
|
528 | 0b06c059 | Gerd Hoffmann | return -1; |
529 | 0b06c059 | Gerd Hoffmann | } |
530 | 0b06c059 | Gerd Hoffmann | |
531 | 0b06c059 | Gerd Hoffmann | buflen = req->cmd.xfer; |
532 | f01b5931 | Paolo Bonzini | if (buflen > SCSI_MAX_INQUIRY_LEN) {
|
533 | 0b06c059 | Gerd Hoffmann | buflen = SCSI_MAX_INQUIRY_LEN; |
534 | f01b5931 | Paolo Bonzini | } |
535 | 0b06c059 | Gerd Hoffmann | memset(outbuf, 0, buflen);
|
536 | 0b06c059 | Gerd Hoffmann | |
537 | f37bd73b | Hannes Reinecke | outbuf[0] = s->qdev.type & 0x1f; |
538 | f37bd73b | Hannes Reinecke | if (s->qdev.type == TYPE_ROM) {
|
539 | 0b06c059 | Gerd Hoffmann | outbuf[1] = 0x80; |
540 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[16], "QEMU CD-ROM ", 16); |
541 | 0b06c059 | Gerd Hoffmann | } else {
|
542 | 419e691f | Stefan Hajnoczi | outbuf[1] = s->removable ? 0x80 : 0; |
543 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[16], "QEMU HARDDISK ", 16); |
544 | 0b06c059 | Gerd Hoffmann | } |
545 | 550fe6c6 | Laszlo Ast | memcpy(&outbuf[8], "QEMU ", 8); |
546 | 314b1811 | Gerd Hoffmann | memset(&outbuf[32], 0, 4); |
547 | 552fee93 | Markus Armbruster | memcpy(&outbuf[32], s->version, MIN(4, strlen(s->version))); |
548 | 99aba0c4 | Christoph Hellwig | /*
|
549 | 99aba0c4 | Christoph Hellwig | * We claim conformance to SPC-3, which is required for guests
|
550 | 99aba0c4 | Christoph Hellwig | * to ask for modern features like READ CAPACITY(16) or the
|
551 | 99aba0c4 | Christoph Hellwig | * block characteristics VPD page by default. Not all of SPC-3
|
552 | 99aba0c4 | Christoph Hellwig | * is actually implemented, but we're good enough.
|
553 | 99aba0c4 | Christoph Hellwig | */
|
554 | ee3659e3 | Christoph Hellwig | outbuf[2] = 5; |
555 | 0b06c059 | Gerd Hoffmann | outbuf[3] = 2; /* Format 2 */ |
556 | ad3cea42 | Artyom Tarasenko | |
557 | ad3cea42 | Artyom Tarasenko | if (buflen > 36) { |
558 | ad3cea42 | Artyom Tarasenko | outbuf[4] = buflen - 5; /* Additional Length = (Len - 1) - 4 */ |
559 | ad3cea42 | Artyom Tarasenko | } else {
|
560 | ad3cea42 | Artyom Tarasenko | /* If the allocation length of CDB is too small,
|
561 | ad3cea42 | Artyom Tarasenko | the additional length is not adjusted */
|
562 | ad3cea42 | Artyom Tarasenko | outbuf[4] = 36 - 5; |
563 | ad3cea42 | Artyom Tarasenko | } |
564 | ad3cea42 | Artyom Tarasenko | |
565 | 0b06c059 | Gerd Hoffmann | /* Sync data transfer and TCQ. */
|
566 | 0b06c059 | Gerd Hoffmann | outbuf[7] = 0x10 | (req->bus->tcq ? 0x02 : 0); |
567 | 0b06c059 | Gerd Hoffmann | return buflen;
|
568 | 0b06c059 | Gerd Hoffmann | } |
569 | 0b06c059 | Gerd Hoffmann | |
570 | cfc606da | Paolo Bonzini | static int mode_sense_page(SCSIDiskState *s, int page, uint8_t **p_outbuf, |
571 | 282ab04e | Bernhard Kohl | int page_control)
|
572 | ebddfcbe | Gerd Hoffmann | { |
573 | 428c149b | Christoph Hellwig | BlockDriverState *bdrv = s->bs; |
574 | ebddfcbe | Gerd Hoffmann | int cylinders, heads, secs;
|
575 | cfc606da | Paolo Bonzini | uint8_t *p = *p_outbuf; |
576 | ebddfcbe | Gerd Hoffmann | |
577 | 282ab04e | Bernhard Kohl | /*
|
578 | 282ab04e | Bernhard Kohl | * If Changeable Values are requested, a mask denoting those mode parameters
|
579 | 282ab04e | Bernhard Kohl | * that are changeable shall be returned. As we currently don't support
|
580 | 282ab04e | Bernhard Kohl | * parameter changes via MODE_SELECT all bits are returned set to zero.
|
581 | 282ab04e | Bernhard Kohl | * The buffer was already menset to zero by the caller of this function.
|
582 | 282ab04e | Bernhard Kohl | */
|
583 | ebddfcbe | Gerd Hoffmann | switch (page) {
|
584 | 67cc61e4 | Paolo Bonzini | case MODE_PAGE_HD_GEOMETRY:
|
585 | cfc606da | Paolo Bonzini | if (s->qdev.type == TYPE_ROM) {
|
586 | cfc606da | Paolo Bonzini | return -1; |
587 | cfc606da | Paolo Bonzini | } |
588 | ebddfcbe | Gerd Hoffmann | p[0] = 4; |
589 | ebddfcbe | Gerd Hoffmann | p[1] = 0x16; |
590 | 282ab04e | Bernhard Kohl | if (page_control == 1) { /* Changeable Values */ |
591 | cfc606da | Paolo Bonzini | break;
|
592 | 282ab04e | Bernhard Kohl | } |
593 | ebddfcbe | Gerd Hoffmann | /* if a geometry hint is available, use it */
|
594 | ebddfcbe | Gerd Hoffmann | bdrv_get_geometry_hint(bdrv, &cylinders, &heads, &secs); |
595 | ebddfcbe | Gerd Hoffmann | p[2] = (cylinders >> 16) & 0xff; |
596 | ebddfcbe | Gerd Hoffmann | p[3] = (cylinders >> 8) & 0xff; |
597 | ebddfcbe | Gerd Hoffmann | p[4] = cylinders & 0xff; |
598 | ebddfcbe | Gerd Hoffmann | p[5] = heads & 0xff; |
599 | ebddfcbe | Gerd Hoffmann | /* Write precomp start cylinder, disabled */
|
600 | ebddfcbe | Gerd Hoffmann | p[6] = (cylinders >> 16) & 0xff; |
601 | ebddfcbe | Gerd Hoffmann | p[7] = (cylinders >> 8) & 0xff; |
602 | ebddfcbe | Gerd Hoffmann | p[8] = cylinders & 0xff; |
603 | ebddfcbe | Gerd Hoffmann | /* Reduced current start cylinder, disabled */
|
604 | ebddfcbe | Gerd Hoffmann | p[9] = (cylinders >> 16) & 0xff; |
605 | ebddfcbe | Gerd Hoffmann | p[10] = (cylinders >> 8) & 0xff; |
606 | ebddfcbe | Gerd Hoffmann | p[11] = cylinders & 0xff; |
607 | ebddfcbe | Gerd Hoffmann | /* Device step rate [ns], 200ns */
|
608 | ebddfcbe | Gerd Hoffmann | p[12] = 0; |
609 | ebddfcbe | Gerd Hoffmann | p[13] = 200; |
610 | ebddfcbe | Gerd Hoffmann | /* Landing zone cylinder */
|
611 | ebddfcbe | Gerd Hoffmann | p[14] = 0xff; |
612 | ebddfcbe | Gerd Hoffmann | p[15] = 0xff; |
613 | ebddfcbe | Gerd Hoffmann | p[16] = 0xff; |
614 | ebddfcbe | Gerd Hoffmann | /* Medium rotation rate [rpm], 5400 rpm */
|
615 | ebddfcbe | Gerd Hoffmann | p[20] = (5400 >> 8) & 0xff; |
616 | ebddfcbe | Gerd Hoffmann | p[21] = 5400 & 0xff; |
617 | cfc606da | Paolo Bonzini | break;
|
618 | ebddfcbe | Gerd Hoffmann | |
619 | 67cc61e4 | Paolo Bonzini | case MODE_PAGE_FLEXIBLE_DISK_GEOMETRY:
|
620 | cfc606da | Paolo Bonzini | if (s->qdev.type == TYPE_ROM) {
|
621 | cfc606da | Paolo Bonzini | return -1; |
622 | cfc606da | Paolo Bonzini | } |
623 | ebddfcbe | Gerd Hoffmann | p[0] = 5; |
624 | ebddfcbe | Gerd Hoffmann | p[1] = 0x1e; |
625 | 282ab04e | Bernhard Kohl | if (page_control == 1) { /* Changeable Values */ |
626 | cfc606da | Paolo Bonzini | break;
|
627 | 282ab04e | Bernhard Kohl | } |
628 | ebddfcbe | Gerd Hoffmann | /* Transfer rate [kbit/s], 5Mbit/s */
|
629 | ebddfcbe | Gerd Hoffmann | p[2] = 5000 >> 8; |
630 | ebddfcbe | Gerd Hoffmann | p[3] = 5000 & 0xff; |
631 | ebddfcbe | Gerd Hoffmann | /* if a geometry hint is available, use it */
|
632 | ebddfcbe | Gerd Hoffmann | bdrv_get_geometry_hint(bdrv, &cylinders, &heads, &secs); |
633 | ebddfcbe | Gerd Hoffmann | p[4] = heads & 0xff; |
634 | ebddfcbe | Gerd Hoffmann | p[5] = secs & 0xff; |
635 | ebddfcbe | Gerd Hoffmann | p[6] = s->cluster_size * 2; |
636 | ebddfcbe | Gerd Hoffmann | p[8] = (cylinders >> 8) & 0xff; |
637 | ebddfcbe | Gerd Hoffmann | p[9] = cylinders & 0xff; |
638 | ebddfcbe | Gerd Hoffmann | /* Write precomp start cylinder, disabled */
|
639 | ebddfcbe | Gerd Hoffmann | p[10] = (cylinders >> 8) & 0xff; |
640 | ebddfcbe | Gerd Hoffmann | p[11] = cylinders & 0xff; |
641 | ebddfcbe | Gerd Hoffmann | /* Reduced current start cylinder, disabled */
|
642 | ebddfcbe | Gerd Hoffmann | p[12] = (cylinders >> 8) & 0xff; |
643 | ebddfcbe | Gerd Hoffmann | p[13] = cylinders & 0xff; |
644 | ebddfcbe | Gerd Hoffmann | /* Device step rate [100us], 100us */
|
645 | ebddfcbe | Gerd Hoffmann | p[14] = 0; |
646 | ebddfcbe | Gerd Hoffmann | p[15] = 1; |
647 | ebddfcbe | Gerd Hoffmann | /* Device step pulse width [us], 1us */
|
648 | ebddfcbe | Gerd Hoffmann | p[16] = 1; |
649 | ebddfcbe | Gerd Hoffmann | /* Device head settle delay [100us], 100us */
|
650 | ebddfcbe | Gerd Hoffmann | p[17] = 0; |
651 | ebddfcbe | Gerd Hoffmann | p[18] = 1; |
652 | ebddfcbe | Gerd Hoffmann | /* Motor on delay [0.1s], 0.1s */
|
653 | ebddfcbe | Gerd Hoffmann | p[19] = 1; |
654 | ebddfcbe | Gerd Hoffmann | /* Motor off delay [0.1s], 0.1s */
|
655 | ebddfcbe | Gerd Hoffmann | p[20] = 1; |
656 | ebddfcbe | Gerd Hoffmann | /* Medium rotation rate [rpm], 5400 rpm */
|
657 | ebddfcbe | Gerd Hoffmann | p[28] = (5400 >> 8) & 0xff; |
658 | ebddfcbe | Gerd Hoffmann | p[29] = 5400 & 0xff; |
659 | cfc606da | Paolo Bonzini | break;
|
660 | ebddfcbe | Gerd Hoffmann | |
661 | 67cc61e4 | Paolo Bonzini | case MODE_PAGE_CACHING:
|
662 | ebddfcbe | Gerd Hoffmann | p[0] = 8; |
663 | ebddfcbe | Gerd Hoffmann | p[1] = 0x12; |
664 | 282ab04e | Bernhard Kohl | if (page_control == 1) { /* Changeable Values */ |
665 | cfc606da | Paolo Bonzini | break;
|
666 | 282ab04e | Bernhard Kohl | } |
667 | 428c149b | Christoph Hellwig | if (bdrv_enable_write_cache(s->bs)) {
|
668 | ebddfcbe | Gerd Hoffmann | p[2] = 4; /* WCE */ |
669 | ebddfcbe | Gerd Hoffmann | } |
670 | cfc606da | Paolo Bonzini | break;
|
671 | ebddfcbe | Gerd Hoffmann | |
672 | 67cc61e4 | Paolo Bonzini | case MODE_PAGE_CAPABILITIES:
|
673 | cfc606da | Paolo Bonzini | if (s->qdev.type != TYPE_ROM) {
|
674 | cfc606da | Paolo Bonzini | return -1; |
675 | cfc606da | Paolo Bonzini | } |
676 | ebddfcbe | Gerd Hoffmann | p[0] = 0x2a; |
677 | ebddfcbe | Gerd Hoffmann | p[1] = 0x14; |
678 | 282ab04e | Bernhard Kohl | if (page_control == 1) { /* Changeable Values */ |
679 | cfc606da | Paolo Bonzini | break;
|
680 | 282ab04e | Bernhard Kohl | } |
681 | ebddfcbe | Gerd Hoffmann | p[2] = 3; // CD-R & CD-RW read |
682 | ebddfcbe | Gerd Hoffmann | p[3] = 0; // Writing not supported |
683 | ebddfcbe | Gerd Hoffmann | p[4] = 0x7f; /* Audio, composite, digital out, |
684 | ebddfcbe | Gerd Hoffmann | mode 2 form 1&2, multi session */
|
685 | ebddfcbe | Gerd Hoffmann | p[5] = 0xff; /* CD DA, DA accurate, RW supported, |
686 | ebddfcbe | Gerd Hoffmann | RW corrected, C2 errors, ISRC,
|
687 | ebddfcbe | Gerd Hoffmann | UPC, Bar code */
|
688 | 81b1008d | Markus Armbruster | p[6] = 0x2d | (s->tray_locked ? 2 : 0); |
689 | ebddfcbe | Gerd Hoffmann | /* Locking supported, jumper present, eject, tray */
|
690 | ebddfcbe | Gerd Hoffmann | p[7] = 0; /* no volume & mute control, no |
691 | ebddfcbe | Gerd Hoffmann | changer */
|
692 | ebddfcbe | Gerd Hoffmann | p[8] = (50 * 176) >> 8; // 50x read speed |
693 | ebddfcbe | Gerd Hoffmann | p[9] = (50 * 176) & 0xff; |
694 | ebddfcbe | Gerd Hoffmann | p[10] = 0 >> 8; // No volume |
695 | ebddfcbe | Gerd Hoffmann | p[11] = 0 & 0xff; |
696 | ebddfcbe | Gerd Hoffmann | p[12] = 2048 >> 8; // 2M buffer |
697 | ebddfcbe | Gerd Hoffmann | p[13] = 2048 & 0xff; |
698 | ebddfcbe | Gerd Hoffmann | p[14] = (16 * 176) >> 8; // 16x read speed current |
699 | ebddfcbe | Gerd Hoffmann | p[15] = (16 * 176) & 0xff; |
700 | ebddfcbe | Gerd Hoffmann | p[18] = (16 * 176) >> 8; // 16x write speed |
701 | ebddfcbe | Gerd Hoffmann | p[19] = (16 * 176) & 0xff; |
702 | ebddfcbe | Gerd Hoffmann | p[20] = (16 * 176) >> 8; // 16x write speed current |
703 | ebddfcbe | Gerd Hoffmann | p[21] = (16 * 176) & 0xff; |
704 | cfc606da | Paolo Bonzini | break;
|
705 | ebddfcbe | Gerd Hoffmann | |
706 | ebddfcbe | Gerd Hoffmann | default:
|
707 | cfc606da | Paolo Bonzini | return -1; |
708 | ebddfcbe | Gerd Hoffmann | } |
709 | cfc606da | Paolo Bonzini | |
710 | cfc606da | Paolo Bonzini | *p_outbuf += p[1] + 2; |
711 | cfc606da | Paolo Bonzini | return p[1] + 2; |
712 | ebddfcbe | Gerd Hoffmann | } |
713 | ebddfcbe | Gerd Hoffmann | |
714 | cfc606da | Paolo Bonzini | static int scsi_disk_emulate_mode_sense(SCSIDiskReq *r, uint8_t *outbuf) |
715 | ebddfcbe | Gerd Hoffmann | { |
716 | cfc606da | Paolo Bonzini | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev); |
717 | ebddfcbe | Gerd Hoffmann | uint64_t nb_sectors; |
718 | cfc606da | Paolo Bonzini | int page, dbd, buflen, ret, page_control;
|
719 | ebddfcbe | Gerd Hoffmann | uint8_t *p; |
720 | ce512ee1 | Bernhard Kohl | uint8_t dev_specific_param; |
721 | ebddfcbe | Gerd Hoffmann | |
722 | cfc606da | Paolo Bonzini | dbd = r->req.cmd.buf[1] & 0x8; |
723 | cfc606da | Paolo Bonzini | page = r->req.cmd.buf[2] & 0x3f; |
724 | cfc606da | Paolo Bonzini | page_control = (r->req.cmd.buf[2] & 0xc0) >> 6; |
725 | aa2b1e89 | Bernhard Kohl | DPRINTF("Mode Sense(%d) (page %d, xfer %zd, page_control %d)\n",
|
726 | cfc606da | Paolo Bonzini | (r->req.cmd.buf[0] == MODE_SENSE) ? 6 : 10, page, r->req.cmd.xfer, page_control); |
727 | cfc606da | Paolo Bonzini | memset(outbuf, 0, r->req.cmd.xfer);
|
728 | ebddfcbe | Gerd Hoffmann | p = outbuf; |
729 | ebddfcbe | Gerd Hoffmann | |
730 | 0056dcc1 | Naphtali Sprei | if (bdrv_is_read_only(s->bs)) {
|
731 | ce512ee1 | Bernhard Kohl | dev_specific_param = 0x80; /* Readonly. */ |
732 | ce512ee1 | Bernhard Kohl | } else {
|
733 | ce512ee1 | Bernhard Kohl | dev_specific_param = 0x00;
|
734 | ce512ee1 | Bernhard Kohl | } |
735 | ce512ee1 | Bernhard Kohl | |
736 | cfc606da | Paolo Bonzini | if (r->req.cmd.buf[0] == MODE_SENSE) { |
737 | ce512ee1 | Bernhard Kohl | p[1] = 0; /* Default media type. */ |
738 | ce512ee1 | Bernhard Kohl | p[2] = dev_specific_param;
|
739 | ce512ee1 | Bernhard Kohl | p[3] = 0; /* Block descriptor length. */ |
740 | ce512ee1 | Bernhard Kohl | p += 4;
|
741 | ce512ee1 | Bernhard Kohl | } else { /* MODE_SENSE_10 */ |
742 | ce512ee1 | Bernhard Kohl | p[2] = 0; /* Default media type. */ |
743 | ce512ee1 | Bernhard Kohl | p[3] = dev_specific_param;
|
744 | ce512ee1 | Bernhard Kohl | p[6] = p[7] = 0; /* Block descriptor length. */ |
745 | ce512ee1 | Bernhard Kohl | p += 8;
|
746 | ebddfcbe | Gerd Hoffmann | } |
747 | ebddfcbe | Gerd Hoffmann | |
748 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
749 | 333d50fe | Bernhard Kohl | if (!dbd && nb_sectors) {
|
750 | cfc606da | Paolo Bonzini | if (r->req.cmd.buf[0] == MODE_SENSE) { |
751 | ce512ee1 | Bernhard Kohl | outbuf[3] = 8; /* Block descriptor length */ |
752 | ce512ee1 | Bernhard Kohl | } else { /* MODE_SENSE_10 */ |
753 | ce512ee1 | Bernhard Kohl | outbuf[7] = 8; /* Block descriptor length */ |
754 | ce512ee1 | Bernhard Kohl | } |
755 | ebddfcbe | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
756 | f01b5931 | Paolo Bonzini | if (nb_sectors > 0xffffff) { |
757 | 2488b740 | Bernhard Kohl | nb_sectors = 0;
|
758 | f01b5931 | Paolo Bonzini | } |
759 | ebddfcbe | Gerd Hoffmann | p[0] = 0; /* media density code */ |
760 | ebddfcbe | Gerd Hoffmann | p[1] = (nb_sectors >> 16) & 0xff; |
761 | ebddfcbe | Gerd Hoffmann | p[2] = (nb_sectors >> 8) & 0xff; |
762 | ebddfcbe | Gerd Hoffmann | p[3] = nb_sectors & 0xff; |
763 | ebddfcbe | Gerd Hoffmann | p[4] = 0; /* reserved */ |
764 | ebddfcbe | Gerd Hoffmann | p[5] = 0; /* bytes 5-7 are the sector size in bytes */ |
765 | ebddfcbe | Gerd Hoffmann | p[6] = s->cluster_size * 2; |
766 | ebddfcbe | Gerd Hoffmann | p[7] = 0; |
767 | ebddfcbe | Gerd Hoffmann | p += 8;
|
768 | ebddfcbe | Gerd Hoffmann | } |
769 | ebddfcbe | Gerd Hoffmann | |
770 | cfc606da | Paolo Bonzini | if (page_control == 3) { |
771 | cfc606da | Paolo Bonzini | /* Saved Values */
|
772 | cfc606da | Paolo Bonzini | scsi_check_condition(r, SENSE_CODE(SAVING_PARAMS_NOT_SUPPORTED)); |
773 | cfc606da | Paolo Bonzini | return -1; |
774 | 282ab04e | Bernhard Kohl | } |
775 | 282ab04e | Bernhard Kohl | |
776 | cfc606da | Paolo Bonzini | if (page == 0x3f) { |
777 | cfc606da | Paolo Bonzini | for (page = 0; page <= 0x3e; page++) { |
778 | cfc606da | Paolo Bonzini | mode_sense_page(s, page, &p, page_control); |
779 | cfc606da | Paolo Bonzini | } |
780 | cfc606da | Paolo Bonzini | } else {
|
781 | cfc606da | Paolo Bonzini | ret = mode_sense_page(s, page, &p, page_control); |
782 | cfc606da | Paolo Bonzini | if (ret == -1) { |
783 | cfc606da | Paolo Bonzini | return -1; |
784 | cfc606da | Paolo Bonzini | } |
785 | ebddfcbe | Gerd Hoffmann | } |
786 | ebddfcbe | Gerd Hoffmann | |
787 | ebddfcbe | Gerd Hoffmann | buflen = p - outbuf; |
788 | ce512ee1 | Bernhard Kohl | /*
|
789 | ce512ee1 | Bernhard Kohl | * The mode data length field specifies the length in bytes of the
|
790 | ce512ee1 | Bernhard Kohl | * following data that is available to be transferred. The mode data
|
791 | ce512ee1 | Bernhard Kohl | * length does not include itself.
|
792 | ce512ee1 | Bernhard Kohl | */
|
793 | cfc606da | Paolo Bonzini | if (r->req.cmd.buf[0] == MODE_SENSE) { |
794 | ce512ee1 | Bernhard Kohl | outbuf[0] = buflen - 1; |
795 | ce512ee1 | Bernhard Kohl | } else { /* MODE_SENSE_10 */ |
796 | ce512ee1 | Bernhard Kohl | outbuf[0] = ((buflen - 2) >> 8) & 0xff; |
797 | ce512ee1 | Bernhard Kohl | outbuf[1] = (buflen - 2) & 0xff; |
798 | ce512ee1 | Bernhard Kohl | } |
799 | f01b5931 | Paolo Bonzini | if (buflen > r->req.cmd.xfer) {
|
800 | cfc606da | Paolo Bonzini | buflen = r->req.cmd.xfer; |
801 | f01b5931 | Paolo Bonzini | } |
802 | ebddfcbe | Gerd Hoffmann | return buflen;
|
803 | ebddfcbe | Gerd Hoffmann | } |
804 | ebddfcbe | Gerd Hoffmann | |
805 | 02880f43 | Gerd Hoffmann | static int scsi_disk_emulate_read_toc(SCSIRequest *req, uint8_t *outbuf) |
806 | 02880f43 | Gerd Hoffmann | { |
807 | 02880f43 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
808 | 02880f43 | Gerd Hoffmann | int start_track, format, msf, toclen;
|
809 | 02880f43 | Gerd Hoffmann | uint64_t nb_sectors; |
810 | 02880f43 | Gerd Hoffmann | |
811 | 02880f43 | Gerd Hoffmann | msf = req->cmd.buf[1] & 2; |
812 | 02880f43 | Gerd Hoffmann | format = req->cmd.buf[2] & 0xf; |
813 | 02880f43 | Gerd Hoffmann | start_track = req->cmd.buf[6];
|
814 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
815 | 02880f43 | Gerd Hoffmann | DPRINTF("Read TOC (track %d format %d msf %d)\n", start_track, format, msf >> 1); |
816 | 02880f43 | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
817 | 02880f43 | Gerd Hoffmann | switch (format) {
|
818 | 02880f43 | Gerd Hoffmann | case 0: |
819 | 02880f43 | Gerd Hoffmann | toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); |
820 | 02880f43 | Gerd Hoffmann | break;
|
821 | 02880f43 | Gerd Hoffmann | case 1: |
822 | 02880f43 | Gerd Hoffmann | /* multi session : only a single session defined */
|
823 | 02880f43 | Gerd Hoffmann | toclen = 12;
|
824 | 02880f43 | Gerd Hoffmann | memset(outbuf, 0, 12); |
825 | 02880f43 | Gerd Hoffmann | outbuf[1] = 0x0a; |
826 | 02880f43 | Gerd Hoffmann | outbuf[2] = 0x01; |
827 | 02880f43 | Gerd Hoffmann | outbuf[3] = 0x01; |
828 | 02880f43 | Gerd Hoffmann | break;
|
829 | 02880f43 | Gerd Hoffmann | case 2: |
830 | 02880f43 | Gerd Hoffmann | toclen = cdrom_read_toc_raw(nb_sectors, outbuf, msf, start_track); |
831 | 02880f43 | Gerd Hoffmann | break;
|
832 | 02880f43 | Gerd Hoffmann | default:
|
833 | 02880f43 | Gerd Hoffmann | return -1; |
834 | 02880f43 | Gerd Hoffmann | } |
835 | f01b5931 | Paolo Bonzini | if (toclen > req->cmd.xfer) {
|
836 | 02880f43 | Gerd Hoffmann | toclen = req->cmd.xfer; |
837 | f01b5931 | Paolo Bonzini | } |
838 | 02880f43 | Gerd Hoffmann | return toclen;
|
839 | 02880f43 | Gerd Hoffmann | } |
840 | 02880f43 | Gerd Hoffmann | |
841 | 68bb01f3 | Markus Armbruster | static int scsi_disk_emulate_start_stop(SCSIDiskReq *r) |
842 | bfd52647 | Markus Armbruster | { |
843 | bfd52647 | Markus Armbruster | SCSIRequest *req = &r->req; |
844 | bfd52647 | Markus Armbruster | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
845 | bfd52647 | Markus Armbruster | bool start = req->cmd.buf[4] & 1; |
846 | bfd52647 | Markus Armbruster | bool loej = req->cmd.buf[4] & 2; /* load on start, eject on !start */ |
847 | bfd52647 | Markus Armbruster | |
848 | bfd52647 | Markus Armbruster | if (s->qdev.type == TYPE_ROM && loej) {
|
849 | 68bb01f3 | Markus Armbruster | if (!start && !s->tray_open && s->tray_locked) {
|
850 | 68bb01f3 | Markus Armbruster | scsi_check_condition(r, |
851 | 68bb01f3 | Markus Armbruster | bdrv_is_inserted(s->bs) |
852 | 68bb01f3 | Markus Armbruster | ? SENSE_CODE(ILLEGAL_REQ_REMOVAL_PREVENTED) |
853 | 68bb01f3 | Markus Armbruster | : SENSE_CODE(NOT_READY_REMOVAL_PREVENTED)); |
854 | 68bb01f3 | Markus Armbruster | return -1; |
855 | fdec4404 | Markus Armbruster | } |
856 | bfd52647 | Markus Armbruster | bdrv_eject(s->bs, !start); |
857 | ece0d5e9 | Markus Armbruster | s->tray_open = !start; |
858 | bfd52647 | Markus Armbruster | } |
859 | 68bb01f3 | Markus Armbruster | return 0; |
860 | bfd52647 | Markus Armbruster | } |
861 | bfd52647 | Markus Armbruster | |
862 | 7285477a | Paolo Bonzini | static int scsi_disk_emulate_command(SCSIDiskReq *r) |
863 | aa5dbdc1 | Gerd Hoffmann | { |
864 | 8af7a3ab | Kevin Wolf | SCSIRequest *req = &r->req; |
865 | e7e25e32 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
866 | e7e25e32 | Gerd Hoffmann | uint64_t nb_sectors; |
867 | 7285477a | Paolo Bonzini | uint8_t *outbuf; |
868 | aa5dbdc1 | Gerd Hoffmann | int buflen = 0; |
869 | aa5dbdc1 | Gerd Hoffmann | |
870 | 7285477a | Paolo Bonzini | if (!r->iov.iov_base) {
|
871 | 7285477a | Paolo Bonzini | /*
|
872 | 7285477a | Paolo Bonzini | * FIXME: we shouldn't return anything bigger than 4k, but the code
|
873 | 7285477a | Paolo Bonzini | * requires the buffer to be as big as req->cmd.xfer in several
|
874 | 7285477a | Paolo Bonzini | * places. So, do not allow CDBs with a very large ALLOCATION
|
875 | 7285477a | Paolo Bonzini | * LENGTH. The real fix would be to modify scsi_read_data and
|
876 | 7285477a | Paolo Bonzini | * dma_buf_read, so that they return data beyond the buflen
|
877 | 7285477a | Paolo Bonzini | * as all zeros.
|
878 | 7285477a | Paolo Bonzini | */
|
879 | 7285477a | Paolo Bonzini | if (req->cmd.xfer > 65536) { |
880 | 7285477a | Paolo Bonzini | goto illegal_request;
|
881 | 7285477a | Paolo Bonzini | } |
882 | 7285477a | Paolo Bonzini | r->buflen = MAX(4096, req->cmd.xfer);
|
883 | 7285477a | Paolo Bonzini | r->iov.iov_base = qemu_blockalign(s->bs, r->buflen); |
884 | 7285477a | Paolo Bonzini | } |
885 | 7285477a | Paolo Bonzini | |
886 | 7285477a | Paolo Bonzini | outbuf = r->iov.iov_base; |
887 | aa5dbdc1 | Gerd Hoffmann | switch (req->cmd.buf[0]) { |
888 | aa5dbdc1 | Gerd Hoffmann | case TEST_UNIT_READY:
|
889 | f01b5931 | Paolo Bonzini | if (s->tray_open || !bdrv_is_inserted(s->bs)) {
|
890 | aa5dbdc1 | Gerd Hoffmann | goto not_ready;
|
891 | f01b5931 | Paolo Bonzini | } |
892 | 5f71d32f | Hannes Reinecke | break;
|
893 | 0b06c059 | Gerd Hoffmann | case INQUIRY:
|
894 | 0b06c059 | Gerd Hoffmann | buflen = scsi_disk_emulate_inquiry(req, outbuf); |
895 | f01b5931 | Paolo Bonzini | if (buflen < 0) { |
896 | 0b06c059 | Gerd Hoffmann | goto illegal_request;
|
897 | f01b5931 | Paolo Bonzini | } |
898 | 5f71d32f | Hannes Reinecke | break;
|
899 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE:
|
900 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE_10:
|
901 | cfc606da | Paolo Bonzini | buflen = scsi_disk_emulate_mode_sense(r, outbuf); |
902 | f01b5931 | Paolo Bonzini | if (buflen < 0) { |
903 | ebddfcbe | Gerd Hoffmann | goto illegal_request;
|
904 | f01b5931 | Paolo Bonzini | } |
905 | ebddfcbe | Gerd Hoffmann | break;
|
906 | 02880f43 | Gerd Hoffmann | case READ_TOC:
|
907 | 02880f43 | Gerd Hoffmann | buflen = scsi_disk_emulate_read_toc(req, outbuf); |
908 | f01b5931 | Paolo Bonzini | if (buflen < 0) { |
909 | 02880f43 | Gerd Hoffmann | goto illegal_request;
|
910 | f01b5931 | Paolo Bonzini | } |
911 | 02880f43 | Gerd Hoffmann | break;
|
912 | 3d53ba18 | Gerd Hoffmann | case RESERVE:
|
913 | f01b5931 | Paolo Bonzini | if (req->cmd.buf[1] & 1) { |
914 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
915 | f01b5931 | Paolo Bonzini | } |
916 | 3d53ba18 | Gerd Hoffmann | break;
|
917 | 3d53ba18 | Gerd Hoffmann | case RESERVE_10:
|
918 | f01b5931 | Paolo Bonzini | if (req->cmd.buf[1] & 3) { |
919 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
920 | f01b5931 | Paolo Bonzini | } |
921 | 3d53ba18 | Gerd Hoffmann | break;
|
922 | 3d53ba18 | Gerd Hoffmann | case RELEASE:
|
923 | f01b5931 | Paolo Bonzini | if (req->cmd.buf[1] & 1) { |
924 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
925 | f01b5931 | Paolo Bonzini | } |
926 | 3d53ba18 | Gerd Hoffmann | break;
|
927 | 3d53ba18 | Gerd Hoffmann | case RELEASE_10:
|
928 | f01b5931 | Paolo Bonzini | if (req->cmd.buf[1] & 3) { |
929 | 3d53ba18 | Gerd Hoffmann | goto illegal_request;
|
930 | f01b5931 | Paolo Bonzini | } |
931 | 3d53ba18 | Gerd Hoffmann | break;
|
932 | 8d3628ff | Gerd Hoffmann | case START_STOP:
|
933 | 68bb01f3 | Markus Armbruster | if (scsi_disk_emulate_start_stop(r) < 0) { |
934 | 68bb01f3 | Markus Armbruster | return -1; |
935 | 68bb01f3 | Markus Armbruster | } |
936 | 5f71d32f | Hannes Reinecke | break;
|
937 | c68b9f34 | Gerd Hoffmann | case ALLOW_MEDIUM_REMOVAL:
|
938 | 81b1008d | Markus Armbruster | s->tray_locked = req->cmd.buf[4] & 1; |
939 | 025e849a | Markus Armbruster | bdrv_lock_medium(s->bs, req->cmd.buf[4] & 1); |
940 | 5f71d32f | Hannes Reinecke | break;
|
941 | 5e30a07d | Hannes Reinecke | case READ_CAPACITY_10:
|
942 | e7e25e32 | Gerd Hoffmann | /* The normal LEN field for this command is zero. */
|
943 | 5f71d32f | Hannes Reinecke | memset(outbuf, 0, 8); |
944 | 5f71d32f | Hannes Reinecke | bdrv_get_geometry(s->bs, &nb_sectors); |
945 | f01b5931 | Paolo Bonzini | if (!nb_sectors) {
|
946 | e7e25e32 | Gerd Hoffmann | goto not_ready;
|
947 | f01b5931 | Paolo Bonzini | } |
948 | e7e25e32 | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
949 | e7e25e32 | Gerd Hoffmann | /* Returned value is the address of the last sector. */
|
950 | e7e25e32 | Gerd Hoffmann | nb_sectors--; |
951 | e7e25e32 | Gerd Hoffmann | /* Remember the new size for read/write sanity checking. */
|
952 | e7e25e32 | Gerd Hoffmann | s->max_lba = nb_sectors; |
953 | e7e25e32 | Gerd Hoffmann | /* Clip to 2TB, instead of returning capacity modulo 2TB. */
|
954 | f01b5931 | Paolo Bonzini | if (nb_sectors > UINT32_MAX) {
|
955 | e7e25e32 | Gerd Hoffmann | nb_sectors = UINT32_MAX; |
956 | f01b5931 | Paolo Bonzini | } |
957 | e7e25e32 | Gerd Hoffmann | outbuf[0] = (nb_sectors >> 24) & 0xff; |
958 | e7e25e32 | Gerd Hoffmann | outbuf[1] = (nb_sectors >> 16) & 0xff; |
959 | e7e25e32 | Gerd Hoffmann | outbuf[2] = (nb_sectors >> 8) & 0xff; |
960 | e7e25e32 | Gerd Hoffmann | outbuf[3] = nb_sectors & 0xff; |
961 | e7e25e32 | Gerd Hoffmann | outbuf[4] = 0; |
962 | e7e25e32 | Gerd Hoffmann | outbuf[5] = 0; |
963 | e7e25e32 | Gerd Hoffmann | outbuf[6] = s->cluster_size * 2; |
964 | e7e25e32 | Gerd Hoffmann | outbuf[7] = 0; |
965 | e7e25e32 | Gerd Hoffmann | buflen = 8;
|
966 | 5f71d32f | Hannes Reinecke | break;
|
967 | 38215553 | Gerd Hoffmann | case GET_CONFIGURATION:
|
968 | 38215553 | Gerd Hoffmann | memset(outbuf, 0, 8); |
969 | 38215553 | Gerd Hoffmann | /* ??? This should probably return much more information. For now
|
970 | 38215553 | Gerd Hoffmann | just return the basic header indicating the CD-ROM profile. */
|
971 | 38215553 | Gerd Hoffmann | outbuf[7] = 8; // CD-ROM |
972 | 38215553 | Gerd Hoffmann | buflen = 8;
|
973 | 38215553 | Gerd Hoffmann | break;
|
974 | f6515262 | Paolo Bonzini | case SERVICE_ACTION_IN_16:
|
975 | 5dd90e2a | Gerd Hoffmann | /* Service Action In subcommands. */
|
976 | f6515262 | Paolo Bonzini | if ((req->cmd.buf[1] & 31) == SAI_READ_CAPACITY_16) { |
977 | 5dd90e2a | Gerd Hoffmann | DPRINTF("SAI READ CAPACITY(16)\n");
|
978 | 5dd90e2a | Gerd Hoffmann | memset(outbuf, 0, req->cmd.xfer);
|
979 | 428c149b | Christoph Hellwig | bdrv_get_geometry(s->bs, &nb_sectors); |
980 | f01b5931 | Paolo Bonzini | if (!nb_sectors) {
|
981 | 5dd90e2a | Gerd Hoffmann | goto not_ready;
|
982 | f01b5931 | Paolo Bonzini | } |
983 | 5dd90e2a | Gerd Hoffmann | nb_sectors /= s->cluster_size; |
984 | 5dd90e2a | Gerd Hoffmann | /* Returned value is the address of the last sector. */
|
985 | 5dd90e2a | Gerd Hoffmann | nb_sectors--; |
986 | 5dd90e2a | Gerd Hoffmann | /* Remember the new size for read/write sanity checking. */
|
987 | 5dd90e2a | Gerd Hoffmann | s->max_lba = nb_sectors; |
988 | 5dd90e2a | Gerd Hoffmann | outbuf[0] = (nb_sectors >> 56) & 0xff; |
989 | 5dd90e2a | Gerd Hoffmann | outbuf[1] = (nb_sectors >> 48) & 0xff; |
990 | 5dd90e2a | Gerd Hoffmann | outbuf[2] = (nb_sectors >> 40) & 0xff; |
991 | 5dd90e2a | Gerd Hoffmann | outbuf[3] = (nb_sectors >> 32) & 0xff; |
992 | 5dd90e2a | Gerd Hoffmann | outbuf[4] = (nb_sectors >> 24) & 0xff; |
993 | 5dd90e2a | Gerd Hoffmann | outbuf[5] = (nb_sectors >> 16) & 0xff; |
994 | 5dd90e2a | Gerd Hoffmann | outbuf[6] = (nb_sectors >> 8) & 0xff; |
995 | 5dd90e2a | Gerd Hoffmann | outbuf[7] = nb_sectors & 0xff; |
996 | 5dd90e2a | Gerd Hoffmann | outbuf[8] = 0; |
997 | 5dd90e2a | Gerd Hoffmann | outbuf[9] = 0; |
998 | 5dd90e2a | Gerd Hoffmann | outbuf[10] = s->cluster_size * 2; |
999 | 5dd90e2a | Gerd Hoffmann | outbuf[11] = 0; |
1000 | ee3659e3 | Christoph Hellwig | outbuf[12] = 0; |
1001 | ee3659e3 | Christoph Hellwig | outbuf[13] = get_physical_block_exp(&s->qdev.conf);
|
1002 | ea3bd56f | Christoph Hellwig | |
1003 | ea3bd56f | Christoph Hellwig | /* set TPE bit if the format supports discard */
|
1004 | ea3bd56f | Christoph Hellwig | if (s->qdev.conf.discard_granularity) {
|
1005 | ea3bd56f | Christoph Hellwig | outbuf[14] = 0x80; |
1006 | ea3bd56f | Christoph Hellwig | } |
1007 | ea3bd56f | Christoph Hellwig | |
1008 | 5dd90e2a | Gerd Hoffmann | /* Protection, exponent and lowest lba field left blank. */
|
1009 | 5dd90e2a | Gerd Hoffmann | buflen = req->cmd.xfer; |
1010 | 5dd90e2a | Gerd Hoffmann | break;
|
1011 | 5dd90e2a | Gerd Hoffmann | } |
1012 | 5dd90e2a | Gerd Hoffmann | DPRINTF("Unsupported Service Action In\n");
|
1013 | 5dd90e2a | Gerd Hoffmann | goto illegal_request;
|
1014 | 5e30a07d | Hannes Reinecke | case VERIFY_10:
|
1015 | 88f8a5ed | Gerd Hoffmann | break;
|
1016 | aa5dbdc1 | Gerd Hoffmann | default:
|
1017 | b45ef674 | Paolo Bonzini | scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE)); |
1018 | a1f0cce2 | Hannes Reinecke | return -1; |
1019 | aa5dbdc1 | Gerd Hoffmann | } |
1020 | aa5dbdc1 | Gerd Hoffmann | return buflen;
|
1021 | aa5dbdc1 | Gerd Hoffmann | |
1022 | aa5dbdc1 | Gerd Hoffmann | not_ready:
|
1023 | a1aff5bf | Markus Armbruster | if (s->tray_open || !bdrv_is_inserted(s->bs)) {
|
1024 | b45ef674 | Paolo Bonzini | scsi_check_condition(r, SENSE_CODE(NO_MEDIUM)); |
1025 | a1f0cce2 | Hannes Reinecke | } else {
|
1026 | b45ef674 | Paolo Bonzini | scsi_check_condition(r, SENSE_CODE(LUN_NOT_READY)); |
1027 | a1f0cce2 | Hannes Reinecke | } |
1028 | 8af7a3ab | Kevin Wolf | return -1; |
1029 | aa5dbdc1 | Gerd Hoffmann | |
1030 | aa5dbdc1 | Gerd Hoffmann | illegal_request:
|
1031 | cfc606da | Paolo Bonzini | if (r->req.status == -1) { |
1032 | cfc606da | Paolo Bonzini | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
1033 | cfc606da | Paolo Bonzini | } |
1034 | 8af7a3ab | Kevin Wolf | return -1; |
1035 | aa5dbdc1 | Gerd Hoffmann | } |
1036 | aa5dbdc1 | Gerd Hoffmann | |
1037 | 2e5d83bb | pbrook | /* Execute a scsi command. Returns the length of the data expected by the
|
1038 | 2e5d83bb | pbrook | command. This will be Positive for data transfers from the device
|
1039 | 2e5d83bb | pbrook | (eg. disk reads), negative for transfers to the device (eg. disk writes),
|
1040 | 2e5d83bb | pbrook | and zero if the command does not transfer any data. */
|
1041 | 2e5d83bb | pbrook | |
1042 | 5c6c0e51 | Hannes Reinecke | static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf)
|
1043 | 2e5d83bb | pbrook | { |
1044 | 5c6c0e51 | Hannes Reinecke | SCSIDiskReq *r = DO_UPCAST(SCSIDiskReq, req, req); |
1045 | 5c6c0e51 | Hannes Reinecke | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev); |
1046 | ad2d30f7 | Paolo Bonzini | int32_t len; |
1047 | a917d384 | pbrook | uint8_t command; |
1048 | aa5dbdc1 | Gerd Hoffmann | int rc;
|
1049 | a917d384 | pbrook | |
1050 | a917d384 | pbrook | command = buf[0];
|
1051 | 653c1c3f | Hannes Reinecke | DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", req->lun, req->tag, buf[0]); |
1052 | 2dd791b6 | Hannes Reinecke | |
1053 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
|
1054 | 2e5d83bb | pbrook | { |
1055 | 2e5d83bb | pbrook | int i;
|
1056 | 2dd791b6 | Hannes Reinecke | for (i = 1; i < r->req.cmd.len; i++) { |
1057 | 2e5d83bb | pbrook | printf(" 0x%02x", buf[i]);
|
1058 | 2e5d83bb | pbrook | } |
1059 | 2e5d83bb | pbrook | printf("\n");
|
1060 | 2e5d83bb | pbrook | } |
1061 | 2e5d83bb | pbrook | #endif
|
1062 | aa5dbdc1 | Gerd Hoffmann | |
1063 | a917d384 | pbrook | switch (command) {
|
1064 | ebf46023 | Gerd Hoffmann | case TEST_UNIT_READY:
|
1065 | 0b06c059 | Gerd Hoffmann | case INQUIRY:
|
1066 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE:
|
1067 | ebddfcbe | Gerd Hoffmann | case MODE_SENSE_10:
|
1068 | 3d53ba18 | Gerd Hoffmann | case RESERVE:
|
1069 | 3d53ba18 | Gerd Hoffmann | case RESERVE_10:
|
1070 | 3d53ba18 | Gerd Hoffmann | case RELEASE:
|
1071 | 3d53ba18 | Gerd Hoffmann | case RELEASE_10:
|
1072 | 8d3628ff | Gerd Hoffmann | case START_STOP:
|
1073 | c68b9f34 | Gerd Hoffmann | case ALLOW_MEDIUM_REMOVAL:
|
1074 | 5e30a07d | Hannes Reinecke | case READ_CAPACITY_10:
|
1075 | 02880f43 | Gerd Hoffmann | case READ_TOC:
|
1076 | 38215553 | Gerd Hoffmann | case GET_CONFIGURATION:
|
1077 | f6515262 | Paolo Bonzini | case SERVICE_ACTION_IN_16:
|
1078 | 5e30a07d | Hannes Reinecke | case VERIFY_10:
|
1079 | 7285477a | Paolo Bonzini | rc = scsi_disk_emulate_command(r); |
1080 | 8af7a3ab | Kevin Wolf | if (rc < 0) { |
1081 | 0b06c059 | Gerd Hoffmann | return 0; |
1082 | aa5dbdc1 | Gerd Hoffmann | } |
1083 | 8af7a3ab | Kevin Wolf | |
1084 | 8af7a3ab | Kevin Wolf | r->iov.iov_len = rc; |
1085 | 0b06c059 | Gerd Hoffmann | break;
|
1086 | 0a4ac106 | Paolo Bonzini | case SYNCHRONIZE_CACHE:
|
1087 | 0a4ac106 | Paolo Bonzini | bdrv_acct_start(s->bs, &r->acct, 0, BDRV_ACCT_FLUSH);
|
1088 | 0a4ac106 | Paolo Bonzini | r->req.aiocb = bdrv_aio_flush(s->bs, scsi_flush_complete, r); |
1089 | 0a4ac106 | Paolo Bonzini | if (r->req.aiocb == NULL) { |
1090 | 0a4ac106 | Paolo Bonzini | scsi_flush_complete(r, -EIO); |
1091 | 0a4ac106 | Paolo Bonzini | } |
1092 | 0a4ac106 | Paolo Bonzini | return 0; |
1093 | ebf46023 | Gerd Hoffmann | case READ_6:
|
1094 | ebf46023 | Gerd Hoffmann | case READ_10:
|
1095 | bd536cf3 | Gerd Hoffmann | case READ_12:
|
1096 | bd536cf3 | Gerd Hoffmann | case READ_16:
|
1097 | 5c6c0e51 | Hannes Reinecke | len = r->req.cmd.xfer / s->qdev.blocksize; |
1098 | 2dd791b6 | Hannes Reinecke | DPRINTF("Read (sector %" PRId64 ", count %d)\n", r->req.cmd.lba, len); |
1099 | f01b5931 | Paolo Bonzini | if (r->req.cmd.lba > s->max_lba) {
|
1100 | 274fb0e1 | aliguori | goto illegal_lba;
|
1101 | f01b5931 | Paolo Bonzini | } |
1102 | 2dd791b6 | Hannes Reinecke | r->sector = r->req.cmd.lba * s->cluster_size; |
1103 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
1104 | 2e5d83bb | pbrook | break;
|
1105 | ebf46023 | Gerd Hoffmann | case WRITE_6:
|
1106 | ebf46023 | Gerd Hoffmann | case WRITE_10:
|
1107 | bd536cf3 | Gerd Hoffmann | case WRITE_12:
|
1108 | bd536cf3 | Gerd Hoffmann | case WRITE_16:
|
1109 | 5e30a07d | Hannes Reinecke | case WRITE_VERIFY_10:
|
1110 | ebef0bbb | Bernhard Kohl | case WRITE_VERIFY_12:
|
1111 | ebef0bbb | Bernhard Kohl | case WRITE_VERIFY_16:
|
1112 | 5c6c0e51 | Hannes Reinecke | len = r->req.cmd.xfer / s->qdev.blocksize; |
1113 | ebef0bbb | Bernhard Kohl | DPRINTF("Write %s(sector %" PRId64 ", count %d)\n", |
1114 | 2dd791b6 | Hannes Reinecke | (command & 0xe) == 0xe ? "And Verify " : "", |
1115 | 2dd791b6 | Hannes Reinecke | r->req.cmd.lba, len); |
1116 | f01b5931 | Paolo Bonzini | if (r->req.cmd.lba > s->max_lba) {
|
1117 | 274fb0e1 | aliguori | goto illegal_lba;
|
1118 | f01b5931 | Paolo Bonzini | } |
1119 | 2dd791b6 | Hannes Reinecke | r->sector = r->req.cmd.lba * s->cluster_size; |
1120 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
1121 | 2e5d83bb | pbrook | break;
|
1122 | ebef0bbb | Bernhard Kohl | case MODE_SELECT:
|
1123 | 2dd791b6 | Hannes Reinecke | DPRINTF("Mode Select(6) (len %lu)\n", (long)r->req.cmd.xfer); |
1124 | ebef0bbb | Bernhard Kohl | /* We don't support mode parameter changes.
|
1125 | ebef0bbb | Bernhard Kohl | Allow the mode parameter header + block descriptors only. */
|
1126 | 2dd791b6 | Hannes Reinecke | if (r->req.cmd.xfer > 12) { |
1127 | ebef0bbb | Bernhard Kohl | goto fail;
|
1128 | ebef0bbb | Bernhard Kohl | } |
1129 | ebef0bbb | Bernhard Kohl | break;
|
1130 | ebef0bbb | Bernhard Kohl | case MODE_SELECT_10:
|
1131 | 2dd791b6 | Hannes Reinecke | DPRINTF("Mode Select(10) (len %lu)\n", (long)r->req.cmd.xfer); |
1132 | ebef0bbb | Bernhard Kohl | /* We don't support mode parameter changes.
|
1133 | ebef0bbb | Bernhard Kohl | Allow the mode parameter header + block descriptors only. */
|
1134 | 2dd791b6 | Hannes Reinecke | if (r->req.cmd.xfer > 16) { |
1135 | ebef0bbb | Bernhard Kohl | goto fail;
|
1136 | ebef0bbb | Bernhard Kohl | } |
1137 | ebef0bbb | Bernhard Kohl | break;
|
1138 | ebef0bbb | Bernhard Kohl | case SEEK_6:
|
1139 | ebef0bbb | Bernhard Kohl | case SEEK_10:
|
1140 | 2dd791b6 | Hannes Reinecke | DPRINTF("Seek(%d) (sector %" PRId64 ")\n", command == SEEK_6 ? 6 : 10, |
1141 | 2dd791b6 | Hannes Reinecke | r->req.cmd.lba); |
1142 | 2dd791b6 | Hannes Reinecke | if (r->req.cmd.lba > s->max_lba) {
|
1143 | ebef0bbb | Bernhard Kohl | goto illegal_lba;
|
1144 | ebef0bbb | Bernhard Kohl | } |
1145 | ebef0bbb | Bernhard Kohl | break;
|
1146 | ea3bd56f | Christoph Hellwig | case WRITE_SAME_16:
|
1147 | 5c6c0e51 | Hannes Reinecke | len = r->req.cmd.xfer / s->qdev.blocksize; |
1148 | ea3bd56f | Christoph Hellwig | |
1149 | ea3bd56f | Christoph Hellwig | DPRINTF("WRITE SAME(16) (sector %" PRId64 ", count %d)\n", |
1150 | ea3bd56f | Christoph Hellwig | r->req.cmd.lba, len); |
1151 | ea3bd56f | Christoph Hellwig | |
1152 | ea3bd56f | Christoph Hellwig | if (r->req.cmd.lba > s->max_lba) {
|
1153 | ea3bd56f | Christoph Hellwig | goto illegal_lba;
|
1154 | ea3bd56f | Christoph Hellwig | } |
1155 | ea3bd56f | Christoph Hellwig | |
1156 | ea3bd56f | Christoph Hellwig | /*
|
1157 | ea3bd56f | Christoph Hellwig | * We only support WRITE SAME with the unmap bit set for now.
|
1158 | ea3bd56f | Christoph Hellwig | */
|
1159 | ea3bd56f | Christoph Hellwig | if (!(buf[1] & 0x8)) { |
1160 | ea3bd56f | Christoph Hellwig | goto fail;
|
1161 | ea3bd56f | Christoph Hellwig | } |
1162 | ea3bd56f | Christoph Hellwig | |
1163 | ea3bd56f | Christoph Hellwig | rc = bdrv_discard(s->bs, r->req.cmd.lba * s->cluster_size, |
1164 | ea3bd56f | Christoph Hellwig | len * s->cluster_size); |
1165 | ea3bd56f | Christoph Hellwig | if (rc < 0) { |
1166 | ea3bd56f | Christoph Hellwig | /* XXX: better error code ?*/
|
1167 | ea3bd56f | Christoph Hellwig | goto fail;
|
1168 | ea3bd56f | Christoph Hellwig | } |
1169 | ea3bd56f | Christoph Hellwig | |
1170 | ea3bd56f | Christoph Hellwig | break;
|
1171 | 739df215 | Paolo Bonzini | case REQUEST_SENSE:
|
1172 | 739df215 | Paolo Bonzini | abort(); |
1173 | 2e5d83bb | pbrook | default:
|
1174 | 2dd791b6 | Hannes Reinecke | DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]); |
1175 | b45ef674 | Paolo Bonzini | scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE)); |
1176 | a1f0cce2 | Hannes Reinecke | return 0; |
1177 | 2e5d83bb | pbrook | fail:
|
1178 | b45ef674 | Paolo Bonzini | scsi_check_condition(r, SENSE_CODE(INVALID_FIELD)); |
1179 | 2dd791b6 | Hannes Reinecke | return 0; |
1180 | 274fb0e1 | aliguori | illegal_lba:
|
1181 | b45ef674 | Paolo Bonzini | scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE)); |
1182 | 274fb0e1 | aliguori | return 0; |
1183 | 2e5d83bb | pbrook | } |
1184 | c87c0672 | aliguori | if (r->sector_count == 0 && r->iov.iov_len == 0) { |
1185 | b45ef674 | Paolo Bonzini | scsi_req_complete(&r->req, GOOD); |
1186 | a917d384 | pbrook | } |
1187 | c87c0672 | aliguori | len = r->sector_count * 512 + r->iov.iov_len;
|
1188 | efb9ee02 | Hannes Reinecke | if (r->req.cmd.mode == SCSI_XFER_TO_DEV) {
|
1189 | efb9ee02 | Hannes Reinecke | return -len;
|
1190 | a917d384 | pbrook | } else {
|
1191 | f01b5931 | Paolo Bonzini | if (!r->sector_count) {
|
1192 | a917d384 | pbrook | r->sector_count = -1;
|
1193 | f01b5931 | Paolo Bonzini | } |
1194 | efb9ee02 | Hannes Reinecke | return len;
|
1195 | 2e5d83bb | pbrook | } |
1196 | 2e5d83bb | pbrook | } |
1197 | 2e5d83bb | pbrook | |
1198 | e9447f35 | Jan Kiszka | static void scsi_disk_reset(DeviceState *dev) |
1199 | e9447f35 | Jan Kiszka | { |
1200 | e9447f35 | Jan Kiszka | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev.qdev, dev); |
1201 | e9447f35 | Jan Kiszka | uint64_t nb_sectors; |
1202 | e9447f35 | Jan Kiszka | |
1203 | c7b48872 | Paolo Bonzini | scsi_device_purge_requests(&s->qdev, SENSE_CODE(RESET)); |
1204 | e9447f35 | Jan Kiszka | |
1205 | e9447f35 | Jan Kiszka | bdrv_get_geometry(s->bs, &nb_sectors); |
1206 | e9447f35 | Jan Kiszka | nb_sectors /= s->cluster_size; |
1207 | e9447f35 | Jan Kiszka | if (nb_sectors) {
|
1208 | e9447f35 | Jan Kiszka | nb_sectors--; |
1209 | e9447f35 | Jan Kiszka | } |
1210 | e9447f35 | Jan Kiszka | s->max_lba = nb_sectors; |
1211 | e9447f35 | Jan Kiszka | } |
1212 | e9447f35 | Jan Kiszka | |
1213 | e9447f35 | Jan Kiszka | static void scsi_destroy(SCSIDevice *dev) |
1214 | e9447f35 | Jan Kiszka | { |
1215 | e9447f35 | Jan Kiszka | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
1216 | e9447f35 | Jan Kiszka | |
1217 | c7b48872 | Paolo Bonzini | scsi_device_purge_requests(&s->qdev, SENSE_CODE(NO_SENSE)); |
1218 | f8b6cc00 | Markus Armbruster | blockdev_mark_auto_del(s->qdev.conf.bs); |
1219 | 56a14938 | Gerd Hoffmann | } |
1220 | 56a14938 | Gerd Hoffmann | |
1221 | 7d4b4ba5 | Markus Armbruster | static void scsi_cd_change_media_cb(void *opaque, bool load) |
1222 | 2c6942fa | Markus Armbruster | { |
1223 | 8a9c16f6 | Paolo Bonzini | SCSIDiskState *s = opaque; |
1224 | 8a9c16f6 | Paolo Bonzini | |
1225 | 8a9c16f6 | Paolo Bonzini | /*
|
1226 | 8a9c16f6 | Paolo Bonzini | * When a CD gets changed, we have to report an ejected state and
|
1227 | 8a9c16f6 | Paolo Bonzini | * then a loaded state to guests so that they detect tray
|
1228 | 8a9c16f6 | Paolo Bonzini | * open/close and media change events. Guests that do not use
|
1229 | 8a9c16f6 | Paolo Bonzini | * GET_EVENT_STATUS_NOTIFICATION to detect such tray open/close
|
1230 | 8a9c16f6 | Paolo Bonzini | * states rely on this behavior.
|
1231 | 8a9c16f6 | Paolo Bonzini | *
|
1232 | 8a9c16f6 | Paolo Bonzini | * media_changed governs the state machine used for unit attention
|
1233 | 8a9c16f6 | Paolo Bonzini | * report. media_event is used by GET EVENT STATUS NOTIFICATION.
|
1234 | 8a9c16f6 | Paolo Bonzini | */
|
1235 | 8a9c16f6 | Paolo Bonzini | s->media_changed = load; |
1236 | 8a9c16f6 | Paolo Bonzini | s->tray_open = !load; |
1237 | 8a9c16f6 | Paolo Bonzini | s->qdev.unit_attention = SENSE_CODE(UNIT_ATTENTION_NO_MEDIUM); |
1238 | 2c6942fa | Markus Armbruster | } |
1239 | 2c6942fa | Markus Armbruster | |
1240 | e4def80b | Markus Armbruster | static bool scsi_cd_is_tray_open(void *opaque) |
1241 | e4def80b | Markus Armbruster | { |
1242 | e4def80b | Markus Armbruster | return ((SCSIDiskState *)opaque)->tray_open;
|
1243 | e4def80b | Markus Armbruster | } |
1244 | e4def80b | Markus Armbruster | |
1245 | f107639a | Markus Armbruster | static bool scsi_cd_is_medium_locked(void *opaque) |
1246 | f107639a | Markus Armbruster | { |
1247 | f107639a | Markus Armbruster | return ((SCSIDiskState *)opaque)->tray_locked;
|
1248 | f107639a | Markus Armbruster | } |
1249 | f107639a | Markus Armbruster | |
1250 | f107639a | Markus Armbruster | static const BlockDevOps scsi_cd_block_ops = { |
1251 | 2c6942fa | Markus Armbruster | .change_media_cb = scsi_cd_change_media_cb, |
1252 | e4def80b | Markus Armbruster | .is_tray_open = scsi_cd_is_tray_open, |
1253 | f107639a | Markus Armbruster | .is_medium_locked = scsi_cd_is_medium_locked, |
1254 | f107639a | Markus Armbruster | }; |
1255 | f107639a | Markus Armbruster | |
1256 | 8a9c16f6 | Paolo Bonzini | static void scsi_disk_unit_attention_reported(SCSIDevice *dev) |
1257 | 8a9c16f6 | Paolo Bonzini | { |
1258 | 8a9c16f6 | Paolo Bonzini | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
1259 | 8a9c16f6 | Paolo Bonzini | if (s->media_changed) {
|
1260 | 8a9c16f6 | Paolo Bonzini | s->media_changed = false;
|
1261 | 8a9c16f6 | Paolo Bonzini | s->qdev.unit_attention = SENSE_CODE(MEDIUM_CHANGED); |
1262 | 8a9c16f6 | Paolo Bonzini | } |
1263 | 8a9c16f6 | Paolo Bonzini | } |
1264 | 8a9c16f6 | Paolo Bonzini | |
1265 | f37bd73b | Hannes Reinecke | static int scsi_initfn(SCSIDevice *dev, uint8_t scsi_type) |
1266 | 2e5d83bb | pbrook | { |
1267 | d52affa7 | Gerd Hoffmann | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); |
1268 | f8b6cc00 | Markus Armbruster | DriveInfo *dinfo; |
1269 | 2e5d83bb | pbrook | |
1270 | f8b6cc00 | Markus Armbruster | if (!s->qdev.conf.bs) {
|
1271 | 1ecda02b | Markus Armbruster | error_report("scsi-disk: drive property not set");
|
1272 | d52affa7 | Gerd Hoffmann | return -1; |
1273 | d52affa7 | Gerd Hoffmann | } |
1274 | f8b6cc00 | Markus Armbruster | s->bs = s->qdev.conf.bs; |
1275 | d52affa7 | Gerd Hoffmann | |
1276 | f37bd73b | Hannes Reinecke | if (scsi_type == TYPE_DISK && !bdrv_is_inserted(s->bs)) {
|
1277 | 98f28ad7 | Markus Armbruster | error_report("Device needs media, but drive is empty");
|
1278 | 98f28ad7 | Markus Armbruster | return -1; |
1279 | 98f28ad7 | Markus Armbruster | } |
1280 | 98f28ad7 | Markus Armbruster | |
1281 | a0fef654 | Markus Armbruster | if (!s->serial) {
|
1282 | f8b6cc00 | Markus Armbruster | /* try to fall back to value set with legacy -drive serial=... */
|
1283 | f8b6cc00 | Markus Armbruster | dinfo = drive_get_by_blockdev(s->bs); |
1284 | 3e1c0c9a | Hannes Reinecke | if (*dinfo->serial) {
|
1285 | 7267c094 | Anthony Liguori | s->serial = g_strdup(dinfo->serial); |
1286 | 3e1c0c9a | Hannes Reinecke | } |
1287 | a0fef654 | Markus Armbruster | } |
1288 | a0fef654 | Markus Armbruster | |
1289 | 552fee93 | Markus Armbruster | if (!s->version) {
|
1290 | 7267c094 | Anthony Liguori | s->version = g_strdup(QEMU_VERSION); |
1291 | 552fee93 | Markus Armbruster | } |
1292 | 552fee93 | Markus Armbruster | |
1293 | 32bb404a | Markus Armbruster | if (bdrv_is_sg(s->bs)) {
|
1294 | 1ecda02b | Markus Armbruster | error_report("scsi-disk: unwanted /dev/sg*");
|
1295 | 32bb404a | Markus Armbruster | return -1; |
1296 | 32bb404a | Markus Armbruster | } |
1297 | 32bb404a | Markus Armbruster | |
1298 | f37bd73b | Hannes Reinecke | if (scsi_type == TYPE_ROM) {
|
1299 | f107639a | Markus Armbruster | bdrv_set_dev_ops(s->bs, &scsi_cd_block_ops, s); |
1300 | 8cfacf07 | Christoph Hellwig | s->qdev.blocksize = 2048;
|
1301 | f37bd73b | Hannes Reinecke | } else if (scsi_type == TYPE_DISK) { |
1302 | 8cfacf07 | Christoph Hellwig | s->qdev.blocksize = s->qdev.conf.logical_block_size; |
1303 | f37bd73b | Hannes Reinecke | } else {
|
1304 | f37bd73b | Hannes Reinecke | error_report("scsi-disk: Unhandled SCSI type %02x", scsi_type);
|
1305 | f37bd73b | Hannes Reinecke | return -1; |
1306 | 2e5d83bb | pbrook | } |
1307 | 8cfacf07 | Christoph Hellwig | s->cluster_size = s->qdev.blocksize / 512;
|
1308 | 7b6f9300 | Markus Armbruster | bdrv_set_buffer_alignment(s->bs, s->qdev.blocksize); |
1309 | 8cfacf07 | Christoph Hellwig | |
1310 | f37bd73b | Hannes Reinecke | s->qdev.type = scsi_type; |
1311 | ea8a5d7f | aliguori | qemu_add_vm_change_state_handler(scsi_dma_restart_cb, s); |
1312 | 9fb118e6 | Luiz Capitulino | bdrv_iostatus_enable(s->bs); |
1313 | 1ca4d09a | Gleb Natapov | add_boot_device_path(s->qdev.conf.bootindex, &dev->qdev, ",0");
|
1314 | d52affa7 | Gerd Hoffmann | return 0; |
1315 | d52affa7 | Gerd Hoffmann | } |
1316 | d52affa7 | Gerd Hoffmann | |
1317 | b443ae67 | Markus Armbruster | static int scsi_hd_initfn(SCSIDevice *dev) |
1318 | b443ae67 | Markus Armbruster | { |
1319 | f37bd73b | Hannes Reinecke | return scsi_initfn(dev, TYPE_DISK);
|
1320 | b443ae67 | Markus Armbruster | } |
1321 | b443ae67 | Markus Armbruster | |
1322 | b443ae67 | Markus Armbruster | static int scsi_cd_initfn(SCSIDevice *dev) |
1323 | b443ae67 | Markus Armbruster | { |
1324 | f37bd73b | Hannes Reinecke | return scsi_initfn(dev, TYPE_ROM);
|
1325 | b443ae67 | Markus Armbruster | } |
1326 | b443ae67 | Markus Armbruster | |
1327 | b443ae67 | Markus Armbruster | static int scsi_disk_initfn(SCSIDevice *dev) |
1328 | b443ae67 | Markus Armbruster | { |
1329 | 95b5edcd | Markus Armbruster | DriveInfo *dinfo; |
1330 | f37bd73b | Hannes Reinecke | uint8_t scsi_type; |
1331 | b443ae67 | Markus Armbruster | |
1332 | b443ae67 | Markus Armbruster | if (!dev->conf.bs) {
|
1333 | f37bd73b | Hannes Reinecke | scsi_type = TYPE_DISK; /* will die in scsi_initfn() */
|
1334 | b443ae67 | Markus Armbruster | } else {
|
1335 | 95b5edcd | Markus Armbruster | dinfo = drive_get_by_blockdev(dev->conf.bs); |
1336 | f37bd73b | Hannes Reinecke | scsi_type = dinfo->media_cd ? TYPE_ROM : TYPE_DISK; |
1337 | b443ae67 | Markus Armbruster | } |
1338 | b443ae67 | Markus Armbruster | |
1339 | f37bd73b | Hannes Reinecke | return scsi_initfn(dev, scsi_type);
|
1340 | b443ae67 | Markus Armbruster | } |
1341 | b443ae67 | Markus Armbruster | |
1342 | 8dbd4574 | Paolo Bonzini | static SCSIReqOps scsi_disk_reqops = {
|
1343 | 8dbd4574 | Paolo Bonzini | .size = sizeof(SCSIDiskReq),
|
1344 | 12010e7b | Paolo Bonzini | .free_req = scsi_free_request, |
1345 | 12010e7b | Paolo Bonzini | .send_command = scsi_send_command, |
1346 | 12010e7b | Paolo Bonzini | .read_data = scsi_read_data, |
1347 | 12010e7b | Paolo Bonzini | .write_data = scsi_write_data, |
1348 | 12010e7b | Paolo Bonzini | .cancel_io = scsi_cancel_io, |
1349 | 12010e7b | Paolo Bonzini | .get_buf = scsi_get_buf, |
1350 | 8dbd4574 | Paolo Bonzini | }; |
1351 | 8dbd4574 | Paolo Bonzini | |
1352 | 8dbd4574 | Paolo Bonzini | static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag,
|
1353 | 8dbd4574 | Paolo Bonzini | uint32_t lun, void *hba_private)
|
1354 | 8dbd4574 | Paolo Bonzini | { |
1355 | 8dbd4574 | Paolo Bonzini | SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d); |
1356 | 8dbd4574 | Paolo Bonzini | SCSIRequest *req; |
1357 | 8dbd4574 | Paolo Bonzini | |
1358 | 8dbd4574 | Paolo Bonzini | req = scsi_req_alloc(&scsi_disk_reqops, &s->qdev, tag, lun, hba_private); |
1359 | 8dbd4574 | Paolo Bonzini | return req;
|
1360 | 8dbd4574 | Paolo Bonzini | } |
1361 | 8dbd4574 | Paolo Bonzini | |
1362 | b443ae67 | Markus Armbruster | #define DEFINE_SCSI_DISK_PROPERTIES() \
|
1363 | b443ae67 | Markus Armbruster | DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf), \ |
1364 | b443ae67 | Markus Armbruster | DEFINE_PROP_STRING("ver", SCSIDiskState, version), \
|
1365 | b443ae67 | Markus Armbruster | DEFINE_PROP_STRING("serial", SCSIDiskState, serial)
|
1366 | b443ae67 | Markus Armbruster | |
1367 | b443ae67 | Markus Armbruster | static SCSIDeviceInfo scsi_disk_info[] = {
|
1368 | b443ae67 | Markus Armbruster | { |
1369 | b443ae67 | Markus Armbruster | .qdev.name = "scsi-hd",
|
1370 | b443ae67 | Markus Armbruster | .qdev.fw_name = "disk",
|
1371 | b443ae67 | Markus Armbruster | .qdev.desc = "virtual SCSI disk",
|
1372 | b443ae67 | Markus Armbruster | .qdev.size = sizeof(SCSIDiskState),
|
1373 | b443ae67 | Markus Armbruster | .qdev.reset = scsi_disk_reset, |
1374 | b443ae67 | Markus Armbruster | .init = scsi_hd_initfn, |
1375 | b443ae67 | Markus Armbruster | .destroy = scsi_destroy, |
1376 | 5c6c0e51 | Hannes Reinecke | .alloc_req = scsi_new_request, |
1377 | 8a9c16f6 | Paolo Bonzini | .unit_attention_reported = scsi_disk_unit_attention_reported, |
1378 | b443ae67 | Markus Armbruster | .qdev.props = (Property[]) { |
1379 | b443ae67 | Markus Armbruster | DEFINE_SCSI_DISK_PROPERTIES(), |
1380 | b443ae67 | Markus Armbruster | DEFINE_PROP_BIT("removable", SCSIDiskState, removable, 0, false), |
1381 | b443ae67 | Markus Armbruster | DEFINE_PROP_END_OF_LIST(), |
1382 | b443ae67 | Markus Armbruster | } |
1383 | b443ae67 | Markus Armbruster | },{ |
1384 | b443ae67 | Markus Armbruster | .qdev.name = "scsi-cd",
|
1385 | b443ae67 | Markus Armbruster | .qdev.fw_name = "disk",
|
1386 | b443ae67 | Markus Armbruster | .qdev.desc = "virtual SCSI CD-ROM",
|
1387 | b443ae67 | Markus Armbruster | .qdev.size = sizeof(SCSIDiskState),
|
1388 | b443ae67 | Markus Armbruster | .qdev.reset = scsi_disk_reset, |
1389 | b443ae67 | Markus Armbruster | .init = scsi_cd_initfn, |
1390 | b443ae67 | Markus Armbruster | .destroy = scsi_destroy, |
1391 | 5c6c0e51 | Hannes Reinecke | .alloc_req = scsi_new_request, |
1392 | 8a9c16f6 | Paolo Bonzini | .unit_attention_reported = scsi_disk_unit_attention_reported, |
1393 | b443ae67 | Markus Armbruster | .qdev.props = (Property[]) { |
1394 | b443ae67 | Markus Armbruster | DEFINE_SCSI_DISK_PROPERTIES(), |
1395 | b443ae67 | Markus Armbruster | DEFINE_PROP_END_OF_LIST(), |
1396 | b443ae67 | Markus Armbruster | }, |
1397 | b443ae67 | Markus Armbruster | },{ |
1398 | b443ae67 | Markus Armbruster | .qdev.name = "scsi-disk", /* legacy -device scsi-disk */ |
1399 | b443ae67 | Markus Armbruster | .qdev.fw_name = "disk",
|
1400 | b443ae67 | Markus Armbruster | .qdev.desc = "virtual SCSI disk or CD-ROM (legacy)",
|
1401 | b443ae67 | Markus Armbruster | .qdev.size = sizeof(SCSIDiskState),
|
1402 | b443ae67 | Markus Armbruster | .qdev.reset = scsi_disk_reset, |
1403 | b443ae67 | Markus Armbruster | .init = scsi_disk_initfn, |
1404 | b443ae67 | Markus Armbruster | .destroy = scsi_destroy, |
1405 | 5c6c0e51 | Hannes Reinecke | .alloc_req = scsi_new_request, |
1406 | 8a9c16f6 | Paolo Bonzini | .unit_attention_reported = scsi_disk_unit_attention_reported, |
1407 | b443ae67 | Markus Armbruster | .qdev.props = (Property[]) { |
1408 | b443ae67 | Markus Armbruster | DEFINE_SCSI_DISK_PROPERTIES(), |
1409 | b443ae67 | Markus Armbruster | DEFINE_PROP_BIT("removable", SCSIDiskState, removable, 0, false), |
1410 | b443ae67 | Markus Armbruster | DEFINE_PROP_END_OF_LIST(), |
1411 | b443ae67 | Markus Armbruster | } |
1412 | b443ae67 | Markus Armbruster | } |
1413 | d52affa7 | Gerd Hoffmann | }; |
1414 | d52affa7 | Gerd Hoffmann | |
1415 | d52affa7 | Gerd Hoffmann | static void scsi_disk_register_devices(void) |
1416 | d52affa7 | Gerd Hoffmann | { |
1417 | b443ae67 | Markus Armbruster | int i;
|
1418 | b443ae67 | Markus Armbruster | |
1419 | b443ae67 | Markus Armbruster | for (i = 0; i < ARRAY_SIZE(scsi_disk_info); i++) { |
1420 | b443ae67 | Markus Armbruster | scsi_qdev_register(&scsi_disk_info[i]); |
1421 | b443ae67 | Markus Armbruster | } |
1422 | 8ccc2ace | ths | } |
1423 | d52affa7 | Gerd Hoffmann | device_init(scsi_disk_register_devices) |