root / hw / scsi-disk.c @ c4470b25
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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 | 2e5d83bb | pbrook | *
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9 | 2e5d83bb | pbrook | * This code is licenced under the LGPL.
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10 | a917d384 | pbrook | *
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11 | a917d384 | pbrook | * Note that this file only handles the SCSI architecture model and device
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12 | 1d4db89c | balrog | * commands. Emulation of interface/link layer protocols is handled by
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13 | 1d4db89c | balrog | * the host adapter emulator.
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14 | 2e5d83bb | pbrook | */
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15 | 2e5d83bb | pbrook | |
16 | fa879c64 | aliguori | #include <qemu-common.h> |
17 | fa879c64 | aliguori | #include <sysemu.h> |
18 | 2e5d83bb | pbrook | //#define DEBUG_SCSI
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19 | 2e5d83bb | pbrook | |
20 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
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21 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) \
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22 | 001faf32 | Blue Swirl | do { printf("scsi-disk: " fmt , ## __VA_ARGS__); } while (0) |
23 | 2e5d83bb | pbrook | #else
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24 | 001faf32 | Blue Swirl | #define DPRINTF(fmt, ...) do {} while(0) |
25 | 2e5d83bb | pbrook | #endif
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26 | 2e5d83bb | pbrook | |
27 | 001faf32 | Blue Swirl | #define BADF(fmt, ...) \
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28 | 001faf32 | Blue Swirl | do { fprintf(stderr, "scsi-disk: " fmt , ## __VA_ARGS__); } while (0) |
29 | 2e5d83bb | pbrook | |
30 | 87ecb68b | pbrook | #include "qemu-common.h" |
31 | 87ecb68b | pbrook | #include "block.h" |
32 | 87ecb68b | pbrook | #include "scsi-disk.h" |
33 | 2e5d83bb | pbrook | |
34 | 2e5d83bb | pbrook | #define SENSE_NO_SENSE 0 |
35 | 1aacf348 | pbrook | #define SENSE_NOT_READY 2 |
36 | 4d611c9a | pbrook | #define SENSE_HARDWARE_ERROR 4 |
37 | 2e5d83bb | pbrook | #define SENSE_ILLEGAL_REQUEST 5 |
38 | 2e5d83bb | pbrook | |
39 | 22864256 | blueswir1 | #define STATUS_GOOD 0 |
40 | 22864256 | blueswir1 | #define STATUS_CHECK_CONDITION 2 |
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 | ea8a5d7f | aliguori | #define SCSI_REQ_STATUS_RETRY 0x01 |
46 | ea8a5d7f | aliguori | |
47 | a917d384 | pbrook | typedef struct SCSIRequest { |
48 | 8ccc2ace | ths | SCSIDeviceState *dev; |
49 | 2e5d83bb | pbrook | uint32_t tag; |
50 | e035b43d | aliguori | /* ??? We should probably keep track of whether the data transfer is
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51 | 2e5d83bb | pbrook | a read or a write. Currently we rely on the host getting it right. */
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52 | a917d384 | pbrook | /* Both sector and sector_count are in terms of qemu 512 byte blocks. */
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53 | e035b43d | aliguori | uint64_t sector; |
54 | e035b43d | aliguori | uint32_t sector_count; |
55 | c87c0672 | aliguori | struct iovec iov;
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56 | c87c0672 | aliguori | QEMUIOVector qiov; |
57 | 4d611c9a | pbrook | BlockDriverAIOCB *aiocb; |
58 | a917d384 | pbrook | struct SCSIRequest *next;
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59 | ea8a5d7f | aliguori | uint32_t status; |
60 | a917d384 | pbrook | } SCSIRequest; |
61 | a917d384 | pbrook | |
62 | 8ccc2ace | ths | struct SCSIDeviceState
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63 | a917d384 | pbrook | { |
64 | a917d384 | pbrook | BlockDriverState *bdrv; |
65 | a917d384 | pbrook | SCSIRequest *requests; |
66 | a917d384 | pbrook | /* The qemu block layer uses a fixed 512 byte sector size.
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67 | a917d384 | pbrook | This is the number of 512 byte blocks in a single scsi sector. */
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68 | a917d384 | pbrook | int cluster_size;
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69 | 274fb0e1 | aliguori | uint64_t max_lba; |
70 | a917d384 | pbrook | int sense;
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71 | a917d384 | pbrook | int tcq;
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72 | 4d611c9a | pbrook | /* Completion functions may be called from either scsi_{read,write}_data
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73 | 4d611c9a | pbrook | or from the AIO completion routines. */
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74 | 2e5d83bb | pbrook | scsi_completionfn completion; |
75 | 2e5d83bb | pbrook | void *opaque;
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76 | fa879c64 | aliguori | char drive_serial_str[21]; |
77 | 213189ab | Markus Armbruster | QEMUBH *bh; |
78 | 2e5d83bb | pbrook | }; |
79 | 2e5d83bb | pbrook | |
80 | a917d384 | pbrook | /* Global pool of SCSIRequest structures. */
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81 | a917d384 | pbrook | static SCSIRequest *free_requests = NULL; |
82 | a917d384 | pbrook | |
83 | 8ccc2ace | ths | static SCSIRequest *scsi_new_request(SCSIDeviceState *s, uint32_t tag)
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84 | 2e5d83bb | pbrook | { |
85 | a917d384 | pbrook | SCSIRequest *r; |
86 | a917d384 | pbrook | |
87 | a917d384 | pbrook | if (free_requests) {
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88 | a917d384 | pbrook | r = free_requests; |
89 | a917d384 | pbrook | free_requests = r->next; |
90 | a917d384 | pbrook | } else {
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91 | a917d384 | pbrook | r = qemu_malloc(sizeof(SCSIRequest));
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92 | c87c0672 | aliguori | r->iov.iov_base = qemu_memalign(512, SCSI_DMA_BUF_SIZE);
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93 | a917d384 | pbrook | } |
94 | a917d384 | pbrook | r->dev = s; |
95 | a917d384 | pbrook | r->tag = tag; |
96 | a917d384 | pbrook | r->sector_count = 0;
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97 | c87c0672 | aliguori | r->iov.iov_len = 0;
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98 | a917d384 | pbrook | r->aiocb = NULL;
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99 | ea8a5d7f | aliguori | r->status = 0;
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100 | a917d384 | pbrook | |
101 | a917d384 | pbrook | r->next = s->requests; |
102 | a917d384 | pbrook | s->requests = r; |
103 | a917d384 | pbrook | return r;
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104 | 2e5d83bb | pbrook | } |
105 | 2e5d83bb | pbrook | |
106 | a917d384 | pbrook | static void scsi_remove_request(SCSIRequest *r) |
107 | 4d611c9a | pbrook | { |
108 | a917d384 | pbrook | SCSIRequest *last; |
109 | 8ccc2ace | ths | SCSIDeviceState *s = r->dev; |
110 | a917d384 | pbrook | |
111 | a917d384 | pbrook | if (s->requests == r) {
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112 | a917d384 | pbrook | s->requests = r->next; |
113 | a917d384 | pbrook | } else {
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114 | a917d384 | pbrook | last = s->requests; |
115 | a917d384 | pbrook | while (last && last->next != r)
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116 | a917d384 | pbrook | last = last->next; |
117 | a917d384 | pbrook | if (last) {
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118 | a917d384 | pbrook | last->next = r->next; |
119 | a917d384 | pbrook | } else {
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120 | a917d384 | pbrook | BADF("Orphaned request\n");
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121 | a917d384 | pbrook | } |
122 | a917d384 | pbrook | } |
123 | a917d384 | pbrook | r->next = free_requests; |
124 | a917d384 | pbrook | free_requests = r; |
125 | 4d611c9a | pbrook | } |
126 | 4d611c9a | pbrook | |
127 | 8ccc2ace | ths | static SCSIRequest *scsi_find_request(SCSIDeviceState *s, uint32_t tag)
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128 | 4d611c9a | pbrook | { |
129 | a917d384 | pbrook | SCSIRequest *r; |
130 | 4d611c9a | pbrook | |
131 | a917d384 | pbrook | r = s->requests; |
132 | a917d384 | pbrook | while (r && r->tag != tag)
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133 | a917d384 | pbrook | r = r->next; |
134 | 4d611c9a | pbrook | |
135 | a917d384 | pbrook | return r;
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136 | a917d384 | pbrook | } |
137 | a917d384 | pbrook | |
138 | a917d384 | pbrook | /* Helper function for command completion. */
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139 | 22864256 | blueswir1 | static void scsi_command_complete(SCSIRequest *r, int status, int sense) |
140 | a917d384 | pbrook | { |
141 | 8ccc2ace | ths | SCSIDeviceState *s = r->dev; |
142 | a917d384 | pbrook | uint32_t tag; |
143 | 22864256 | blueswir1 | DPRINTF("Command complete tag=0x%x status=%d sense=%d\n", r->tag, status, sense);
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144 | a917d384 | pbrook | s->sense = sense; |
145 | a917d384 | pbrook | tag = r->tag; |
146 | a917d384 | pbrook | scsi_remove_request(r); |
147 | 22864256 | blueswir1 | s->completion(s->opaque, SCSI_REASON_DONE, tag, status); |
148 | 4d611c9a | pbrook | } |
149 | 4d611c9a | pbrook | |
150 | 4d611c9a | pbrook | /* Cancel a pending data transfer. */
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151 | 8ccc2ace | ths | static void scsi_cancel_io(SCSIDevice *d, uint32_t tag) |
152 | 4d611c9a | pbrook | { |
153 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
154 | a917d384 | pbrook | SCSIRequest *r; |
155 | a917d384 | pbrook | DPRINTF("Cancel tag=0x%x\n", tag);
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156 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
157 | a917d384 | pbrook | if (r) {
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158 | a917d384 | pbrook | if (r->aiocb)
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159 | a917d384 | pbrook | bdrv_aio_cancel(r->aiocb); |
160 | a917d384 | pbrook | r->aiocb = NULL;
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161 | a917d384 | pbrook | scsi_remove_request(r); |
162 | a917d384 | pbrook | } |
163 | a917d384 | pbrook | } |
164 | a917d384 | pbrook | |
165 | a917d384 | pbrook | static void scsi_read_complete(void * opaque, int ret) |
166 | a917d384 | pbrook | { |
167 | a917d384 | pbrook | SCSIRequest *r = (SCSIRequest *)opaque; |
168 | 8ccc2ace | ths | SCSIDeviceState *s = r->dev; |
169 | a917d384 | pbrook | |
170 | a917d384 | pbrook | if (ret) {
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171 | a917d384 | pbrook | DPRINTF("IO error\n");
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172 | 22864256 | blueswir1 | s->completion(s->opaque, SCSI_REASON_DATA, r->tag, 0);
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173 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_NO_SENSE); |
174 | 4d611c9a | pbrook | return;
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175 | 4d611c9a | pbrook | } |
176 | 0bf9e31a | Blue Swirl | DPRINTF("Data ready tag=0x%x len=%" PRId64 "\n", r->tag, r->iov.iov_len); |
177 | a917d384 | pbrook | |
178 | c87c0672 | aliguori | s->completion(s->opaque, SCSI_REASON_DATA, r->tag, r->iov.iov_len); |
179 | 4d611c9a | pbrook | } |
180 | 4d611c9a | pbrook | |
181 | a917d384 | pbrook | /* Read more data from scsi device into buffer. */
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182 | 8ccc2ace | ths | static void scsi_read_data(SCSIDevice *d, uint32_t tag) |
183 | 2e5d83bb | pbrook | { |
184 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
185 | a917d384 | pbrook | SCSIRequest *r; |
186 | 2e5d83bb | pbrook | uint32_t n; |
187 | 2e5d83bb | pbrook | |
188 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
189 | a917d384 | pbrook | if (!r) {
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190 | a917d384 | pbrook | BADF("Bad read tag 0x%x\n", tag);
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191 | b1fa7164 | blueswir1 | /* ??? This is the wrong error. */
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192 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR); |
193 | a917d384 | pbrook | return;
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194 | 2e5d83bb | pbrook | } |
195 | a917d384 | pbrook | if (r->sector_count == (uint32_t)-1) { |
196 | 0bf9e31a | Blue Swirl | DPRINTF("Read buf_len=%" PRId64 "\n", r->iov.iov_len); |
197 | a917d384 | pbrook | r->sector_count = 0;
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198 | c87c0672 | aliguori | s->completion(s->opaque, SCSI_REASON_DATA, r->tag, r->iov.iov_len); |
199 | a917d384 | pbrook | return;
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200 | 2e5d83bb | pbrook | } |
201 | a917d384 | pbrook | DPRINTF("Read sector_count=%d\n", r->sector_count);
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202 | a917d384 | pbrook | if (r->sector_count == 0) { |
203 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_GOOD, SENSE_NO_SENSE); |
204 | a917d384 | pbrook | return;
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205 | 2e5d83bb | pbrook | } |
206 | 2e5d83bb | pbrook | |
207 | a917d384 | pbrook | n = r->sector_count; |
208 | a917d384 | pbrook | if (n > SCSI_DMA_BUF_SIZE / 512) |
209 | a917d384 | pbrook | n = SCSI_DMA_BUF_SIZE / 512;
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210 | a917d384 | pbrook | |
211 | c87c0672 | aliguori | r->iov.iov_len = n * 512;
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212 | c87c0672 | aliguori | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
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213 | c87c0672 | aliguori | r->aiocb = bdrv_aio_readv(s->bdrv, r->sector, &r->qiov, n, |
214 | c87c0672 | aliguori | scsi_read_complete, r); |
215 | a917d384 | pbrook | if (r->aiocb == NULL) |
216 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR); |
217 | a917d384 | pbrook | r->sector += n; |
218 | a917d384 | pbrook | r->sector_count -= n; |
219 | 2e5d83bb | pbrook | } |
220 | 2e5d83bb | pbrook | |
221 | ea8a5d7f | aliguori | static int scsi_handle_write_error(SCSIRequest *r, int error) |
222 | ea8a5d7f | aliguori | { |
223 | ea8a5d7f | aliguori | BlockInterfaceErrorAction action = drive_get_onerror(r->dev->bdrv); |
224 | ea8a5d7f | aliguori | |
225 | ea8a5d7f | aliguori | if (action == BLOCK_ERR_IGNORE)
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226 | ea8a5d7f | aliguori | return 0; |
227 | ea8a5d7f | aliguori | |
228 | ea8a5d7f | aliguori | if ((error == ENOSPC && action == BLOCK_ERR_STOP_ENOSPC)
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229 | ea8a5d7f | aliguori | || action == BLOCK_ERR_STOP_ANY) { |
230 | ea8a5d7f | aliguori | r->status |= SCSI_REQ_STATUS_RETRY; |
231 | ea8a5d7f | aliguori | vm_stop(0);
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232 | ea8a5d7f | aliguori | } else {
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233 | ea8a5d7f | aliguori | scsi_command_complete(r, STATUS_CHECK_CONDITION, |
234 | ea8a5d7f | aliguori | SENSE_HARDWARE_ERROR); |
235 | ea8a5d7f | aliguori | } |
236 | ea8a5d7f | aliguori | |
237 | ea8a5d7f | aliguori | return 1; |
238 | ea8a5d7f | aliguori | } |
239 | ea8a5d7f | aliguori | |
240 | 4d611c9a | pbrook | static void scsi_write_complete(void * opaque, int ret) |
241 | 4d611c9a | pbrook | { |
242 | a917d384 | pbrook | SCSIRequest *r = (SCSIRequest *)opaque; |
243 | 8ccc2ace | ths | SCSIDeviceState *s = r->dev; |
244 | a917d384 | pbrook | uint32_t len; |
245 | ea8a5d7f | aliguori | uint32_t n; |
246 | ea8a5d7f | aliguori | |
247 | ea8a5d7f | aliguori | r->aiocb = NULL;
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248 | 4d611c9a | pbrook | |
249 | 4d611c9a | pbrook | if (ret) {
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250 | ea8a5d7f | aliguori | if (scsi_handle_write_error(r, -ret))
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251 | ea8a5d7f | aliguori | return;
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252 | 4d611c9a | pbrook | } |
253 | 4d611c9a | pbrook | |
254 | c87c0672 | aliguori | n = r->iov.iov_len / 512;
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255 | ea8a5d7f | aliguori | r->sector += n; |
256 | ea8a5d7f | aliguori | r->sector_count -= n; |
257 | a917d384 | pbrook | if (r->sector_count == 0) { |
258 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_GOOD, SENSE_NO_SENSE); |
259 | a917d384 | pbrook | } else {
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260 | a917d384 | pbrook | len = r->sector_count * 512;
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261 | a917d384 | pbrook | if (len > SCSI_DMA_BUF_SIZE) {
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262 | a917d384 | pbrook | len = SCSI_DMA_BUF_SIZE; |
263 | a917d384 | pbrook | } |
264 | c87c0672 | aliguori | r->iov.iov_len = len; |
265 | a917d384 | pbrook | DPRINTF("Write complete tag=0x%x more=%d\n", r->tag, len);
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266 | a917d384 | pbrook | s->completion(s->opaque, SCSI_REASON_DATA, r->tag, len); |
267 | 4d611c9a | pbrook | } |
268 | 4d611c9a | pbrook | } |
269 | 4d611c9a | pbrook | |
270 | ea8a5d7f | aliguori | static void scsi_write_request(SCSIRequest *r) |
271 | ea8a5d7f | aliguori | { |
272 | ea8a5d7f | aliguori | SCSIDeviceState *s = r->dev; |
273 | ea8a5d7f | aliguori | uint32_t n; |
274 | ea8a5d7f | aliguori | |
275 | c87c0672 | aliguori | n = r->iov.iov_len / 512;
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276 | ea8a5d7f | aliguori | if (n) {
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277 | c87c0672 | aliguori | qemu_iovec_init_external(&r->qiov, &r->iov, 1);
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278 | c87c0672 | aliguori | r->aiocb = bdrv_aio_writev(s->bdrv, r->sector, &r->qiov, n, |
279 | c87c0672 | aliguori | scsi_write_complete, r); |
280 | ea8a5d7f | aliguori | if (r->aiocb == NULL) |
281 | ea8a5d7f | aliguori | scsi_command_complete(r, STATUS_CHECK_CONDITION, |
282 | ea8a5d7f | aliguori | SENSE_HARDWARE_ERROR); |
283 | ea8a5d7f | aliguori | } else {
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284 | ea8a5d7f | aliguori | /* Invoke completion routine to fetch data from host. */
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285 | ea8a5d7f | aliguori | scsi_write_complete(r, 0);
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286 | ea8a5d7f | aliguori | } |
287 | ea8a5d7f | aliguori | } |
288 | ea8a5d7f | aliguori | |
289 | 4d611c9a | pbrook | /* Write data to a scsi device. Returns nonzero on failure.
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290 | 4d611c9a | pbrook | The transfer may complete asynchronously. */
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291 | 8ccc2ace | ths | static int scsi_write_data(SCSIDevice *d, uint32_t tag) |
292 | 2e5d83bb | pbrook | { |
293 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
294 | a917d384 | pbrook | SCSIRequest *r; |
295 | 2e5d83bb | pbrook | |
296 | a917d384 | pbrook | DPRINTF("Write data tag=0x%x\n", tag);
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297 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
298 | a917d384 | pbrook | if (!r) {
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299 | a917d384 | pbrook | BADF("Bad write tag 0x%x\n", tag);
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300 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR); |
301 | 2e5d83bb | pbrook | return 1; |
302 | 2e5d83bb | pbrook | } |
303 | ea8a5d7f | aliguori | |
304 | a917d384 | pbrook | if (r->aiocb)
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305 | a917d384 | pbrook | BADF("Data transfer already in progress\n");
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306 | ea8a5d7f | aliguori | |
307 | ea8a5d7f | aliguori | scsi_write_request(r); |
308 | 2e5d83bb | pbrook | |
309 | a917d384 | pbrook | return 0; |
310 | a917d384 | pbrook | } |
311 | 2e5d83bb | pbrook | |
312 | 213189ab | Markus Armbruster | static void scsi_dma_restart_bh(void *opaque) |
313 | ea8a5d7f | aliguori | { |
314 | ea8a5d7f | aliguori | SCSIDeviceState *s = opaque; |
315 | ea8a5d7f | aliguori | SCSIRequest *r = s->requests; |
316 | 213189ab | Markus Armbruster | |
317 | 213189ab | Markus Armbruster | qemu_bh_delete(s->bh); |
318 | 213189ab | Markus Armbruster | s->bh = NULL;
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319 | ea8a5d7f | aliguori | |
320 | ea8a5d7f | aliguori | while (r) {
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321 | ea8a5d7f | aliguori | if (r->status & SCSI_REQ_STATUS_RETRY) {
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322 | ea8a5d7f | aliguori | r->status &= ~SCSI_REQ_STATUS_RETRY; |
323 | ea8a5d7f | aliguori | scsi_write_request(r); |
324 | ea8a5d7f | aliguori | } |
325 | ea8a5d7f | aliguori | r = r->next; |
326 | ea8a5d7f | aliguori | } |
327 | ea8a5d7f | aliguori | } |
328 | ea8a5d7f | aliguori | |
329 | 213189ab | Markus Armbruster | static void scsi_dma_restart_cb(void *opaque, int running, int reason) |
330 | 213189ab | Markus Armbruster | { |
331 | 213189ab | Markus Armbruster | SCSIDeviceState *s = opaque; |
332 | 213189ab | Markus Armbruster | |
333 | 213189ab | Markus Armbruster | if (!running)
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334 | 213189ab | Markus Armbruster | return;
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335 | 213189ab | Markus Armbruster | |
336 | 213189ab | Markus Armbruster | if (!s->bh) {
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337 | 213189ab | Markus Armbruster | s->bh = qemu_bh_new(scsi_dma_restart_bh, s); |
338 | 213189ab | Markus Armbruster | qemu_bh_schedule(s->bh); |
339 | 213189ab | Markus Armbruster | } |
340 | 213189ab | Markus Armbruster | } |
341 | 213189ab | Markus Armbruster | |
342 | a917d384 | pbrook | /* Return a pointer to the data buffer. */
|
343 | 8ccc2ace | ths | static uint8_t *scsi_get_buf(SCSIDevice *d, uint32_t tag)
|
344 | a917d384 | pbrook | { |
345 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
346 | a917d384 | pbrook | SCSIRequest *r; |
347 | 2e5d83bb | pbrook | |
348 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
349 | a917d384 | pbrook | if (!r) {
|
350 | a917d384 | pbrook | BADF("Bad buffer tag 0x%x\n", tag);
|
351 | a917d384 | pbrook | return NULL; |
352 | 4d611c9a | pbrook | } |
353 | 3f4cb3d3 | blueswir1 | return (uint8_t *)r->iov.iov_base;
|
354 | 2e5d83bb | pbrook | } |
355 | 2e5d83bb | pbrook | |
356 | 2e5d83bb | pbrook | /* Execute a scsi command. Returns the length of the data expected by the
|
357 | 2e5d83bb | pbrook | command. This will be Positive for data transfers from the device
|
358 | 2e5d83bb | pbrook | (eg. disk reads), negative for transfers to the device (eg. disk writes),
|
359 | 2e5d83bb | pbrook | and zero if the command does not transfer any data. */
|
360 | 2e5d83bb | pbrook | |
361 | 8ccc2ace | ths | static int32_t scsi_send_command(SCSIDevice *d, uint32_t tag,
|
362 | 8ccc2ace | ths | uint8_t *buf, int lun)
|
363 | 2e5d83bb | pbrook | { |
364 | 8ccc2ace | ths | SCSIDeviceState *s = d->state; |
365 | 96b8f136 | ths | uint64_t nb_sectors; |
366 | 86106e59 | aliguori | uint64_t lba; |
367 | 2e5d83bb | pbrook | uint32_t len; |
368 | 2e5d83bb | pbrook | int cmdlen;
|
369 | 2e5d83bb | pbrook | int is_write;
|
370 | a917d384 | pbrook | uint8_t command; |
371 | a917d384 | pbrook | uint8_t *outbuf; |
372 | a917d384 | pbrook | SCSIRequest *r; |
373 | a917d384 | pbrook | |
374 | a917d384 | pbrook | command = buf[0];
|
375 | a917d384 | pbrook | r = scsi_find_request(s, tag); |
376 | a917d384 | pbrook | if (r) {
|
377 | a917d384 | pbrook | BADF("Tag 0x%x already in use\n", tag);
|
378 | 8ccc2ace | ths | scsi_cancel_io(d, tag); |
379 | a917d384 | pbrook | } |
380 | a917d384 | pbrook | /* ??? Tags are not unique for different luns. We only implement a
|
381 | a917d384 | pbrook | single lun, so this should not matter. */
|
382 | a917d384 | pbrook | r = scsi_new_request(s, tag); |
383 | 3f4cb3d3 | blueswir1 | outbuf = (uint8_t *)r->iov.iov_base; |
384 | 2e5d83bb | pbrook | is_write = 0;
|
385 | a917d384 | pbrook | DPRINTF("Command: lun=%d tag=0x%x data=0x%02x", lun, tag, buf[0]); |
386 | a917d384 | pbrook | switch (command >> 5) { |
387 | 2e5d83bb | pbrook | case 0: |
388 | 86106e59 | aliguori | lba = (uint64_t) buf[3] | ((uint64_t) buf[2] << 8) | |
389 | 86106e59 | aliguori | (((uint64_t) buf[1] & 0x1f) << 16); |
390 | 2e5d83bb | pbrook | len = buf[4];
|
391 | 2e5d83bb | pbrook | cmdlen = 6;
|
392 | 2e5d83bb | pbrook | break;
|
393 | 2e5d83bb | pbrook | case 1: |
394 | 2e5d83bb | pbrook | case 2: |
395 | 86106e59 | aliguori | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | |
396 | 86106e59 | aliguori | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); |
397 | 2e5d83bb | pbrook | len = buf[8] | (buf[7] << 8); |
398 | 2e5d83bb | pbrook | cmdlen = 10;
|
399 | 2e5d83bb | pbrook | break;
|
400 | 2e5d83bb | pbrook | case 4: |
401 | 86106e59 | aliguori | lba = (uint64_t) buf[9] | ((uint64_t) buf[8] << 8) | |
402 | 86106e59 | aliguori | ((uint64_t) buf[7] << 16) | ((uint64_t) buf[6] << 24) | |
403 | 86106e59 | aliguori | ((uint64_t) buf[5] << 32) | ((uint64_t) buf[4] << 40) | |
404 | 86106e59 | aliguori | ((uint64_t) buf[3] << 48) | ((uint64_t) buf[2] << 56); |
405 | 2e5d83bb | pbrook | len = buf[13] | (buf[12] << 8) | (buf[11] << 16) | (buf[10] << 24); |
406 | 2e5d83bb | pbrook | cmdlen = 16;
|
407 | 2e5d83bb | pbrook | break;
|
408 | 2e5d83bb | pbrook | case 5: |
409 | 86106e59 | aliguori | lba = (uint64_t) buf[5] | ((uint64_t) buf[4] << 8) | |
410 | 86106e59 | aliguori | ((uint64_t) buf[3] << 16) | ((uint64_t) buf[2] << 24); |
411 | 2e5d83bb | pbrook | len = buf[9] | (buf[8] << 8) | (buf[7] << 16) | (buf[6] << 24); |
412 | 2e5d83bb | pbrook | cmdlen = 12;
|
413 | 2e5d83bb | pbrook | break;
|
414 | 2e5d83bb | pbrook | default:
|
415 | a917d384 | pbrook | BADF("Unsupported command length, command %x\n", command);
|
416 | 2e5d83bb | pbrook | goto fail;
|
417 | 2e5d83bb | pbrook | } |
418 | 2e5d83bb | pbrook | #ifdef DEBUG_SCSI
|
419 | 2e5d83bb | pbrook | { |
420 | 2e5d83bb | pbrook | int i;
|
421 | 2e5d83bb | pbrook | for (i = 1; i < cmdlen; i++) { |
422 | 2e5d83bb | pbrook | printf(" 0x%02x", buf[i]);
|
423 | 2e5d83bb | pbrook | } |
424 | 2e5d83bb | pbrook | printf("\n");
|
425 | 2e5d83bb | pbrook | } |
426 | 2e5d83bb | pbrook | #endif
|
427 | 0fc5c15a | pbrook | if (lun || buf[1] >> 5) { |
428 | 2e5d83bb | pbrook | /* Only LUN 0 supported. */
|
429 | 0fc5c15a | pbrook | DPRINTF("Unimplemented LUN %d\n", lun ? lun : buf[1] >> 5); |
430 | 22864256 | blueswir1 | if (command != 0x03 && command != 0x12) /* REQUEST SENSE and INQUIRY */ |
431 | 22864256 | blueswir1 | goto fail;
|
432 | 2e5d83bb | pbrook | } |
433 | a917d384 | pbrook | switch (command) {
|
434 | 2e5d83bb | pbrook | case 0x0: |
435 | 2e5d83bb | pbrook | DPRINTF("Test Unit Ready\n");
|
436 | 58a2c436 | blueswir1 | if (!bdrv_is_inserted(s->bdrv))
|
437 | 58a2c436 | blueswir1 | goto notready;
|
438 | 2e5d83bb | pbrook | break;
|
439 | 2e5d83bb | pbrook | case 0x03: |
440 | 2e5d83bb | pbrook | DPRINTF("Request Sense (len %d)\n", len);
|
441 | 2e5d83bb | pbrook | if (len < 4) |
442 | 2e5d83bb | pbrook | goto fail;
|
443 | 67cd24a8 | ths | memset(outbuf, 0, 4); |
444 | c87c0672 | aliguori | r->iov.iov_len = 4;
|
445 | ed6a9b30 | blueswir1 | if (s->sense == SENSE_NOT_READY && len >= 18) { |
446 | ed6a9b30 | blueswir1 | memset(outbuf, 0, 18); |
447 | c87c0672 | aliguori | r->iov.iov_len = 18;
|
448 | ed6a9b30 | blueswir1 | outbuf[7] = 10; |
449 | ed6a9b30 | blueswir1 | /* asc 0x3a, ascq 0: Medium not present */
|
450 | ed6a9b30 | blueswir1 | outbuf[12] = 0x3a; |
451 | ed6a9b30 | blueswir1 | outbuf[13] = 0; |
452 | ed6a9b30 | blueswir1 | } |
453 | a917d384 | pbrook | outbuf[0] = 0xf0; |
454 | a917d384 | pbrook | outbuf[1] = 0; |
455 | a917d384 | pbrook | outbuf[2] = s->sense;
|
456 | 2e5d83bb | pbrook | break;
|
457 | 2e5d83bb | pbrook | case 0x12: |
458 | 7d8406be | pbrook | DPRINTF("Inquiry (len %d)\n", len);
|
459 | 1d4db89c | balrog | if (buf[1] & 0x2) { |
460 | 1d4db89c | balrog | /* Command support data - optional, not implemented */
|
461 | 1d4db89c | balrog | BADF("optional INQUIRY command support request not implemented\n");
|
462 | 1d4db89c | balrog | goto fail;
|
463 | 1d4db89c | balrog | } |
464 | 1d4db89c | balrog | else if (buf[1] & 0x1) { |
465 | 1d4db89c | balrog | /* Vital product data */
|
466 | 1d4db89c | balrog | uint8_t page_code = buf[2];
|
467 | 1d4db89c | balrog | if (len < 4) { |
468 | 1d4db89c | balrog | BADF("Error: Inquiry (EVPD[%02X]) buffer size %d is "
|
469 | 1d4db89c | balrog | "less than 4\n", page_code, len);
|
470 | 1d4db89c | balrog | goto fail;
|
471 | 1d4db89c | balrog | } |
472 | 1d4db89c | balrog | |
473 | 1d4db89c | balrog | switch (page_code) {
|
474 | 1d4db89c | balrog | case 0x00: |
475 | 1d4db89c | balrog | { |
476 | 1d4db89c | balrog | /* Supported page codes, mandatory */
|
477 | 1d4db89c | balrog | DPRINTF("Inquiry EVPD[Supported pages] "
|
478 | 1d4db89c | balrog | "buffer size %d\n", len);
|
479 | 1d4db89c | balrog | |
480 | c87c0672 | aliguori | r->iov.iov_len = 0;
|
481 | 1d4db89c | balrog | |
482 | 1d4db89c | balrog | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
483 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 5;
|
484 | 1d4db89c | balrog | } else {
|
485 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0;
|
486 | 1d4db89c | balrog | } |
487 | 1d4db89c | balrog | |
488 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x00; // this page |
489 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x00;
|
490 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 3; // number of pages |
491 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x00; // list of supported pages (this page) |
492 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x80; // unit serial number |
493 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x83; // device identification |
494 | 1d4db89c | balrog | } |
495 | 1d4db89c | balrog | break;
|
496 | 1d4db89c | balrog | case 0x80: |
497 | 1d4db89c | balrog | { |
498 | fa879c64 | aliguori | int l;
|
499 | fa879c64 | aliguori | |
500 | 1d4db89c | balrog | /* Device serial number, optional */
|
501 | 1d4db89c | balrog | if (len < 4) { |
502 | 1d4db89c | balrog | BADF("Error: EVPD[Serial number] Inquiry buffer "
|
503 | 1d4db89c | balrog | "size %d too small, %d needed\n", len, 4); |
504 | 1d4db89c | balrog | goto fail;
|
505 | 1d4db89c | balrog | } |
506 | 1d4db89c | balrog | |
507 | 1d4db89c | balrog | DPRINTF("Inquiry EVPD[Serial number] buffer size %d\n", len);
|
508 | fa879c64 | aliguori | l = MIN(len, strlen(s->drive_serial_str)); |
509 | 1d4db89c | balrog | |
510 | c87c0672 | aliguori | r->iov.iov_len = 0;
|
511 | 1d4db89c | balrog | |
512 | 1d4db89c | balrog | /* Supported page codes */
|
513 | 1d4db89c | balrog | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
514 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 5;
|
515 | 1d4db89c | balrog | } else {
|
516 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0;
|
517 | 1d4db89c | balrog | } |
518 | 1d4db89c | balrog | |
519 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x80; // this page |
520 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x00;
|
521 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = l; |
522 | c87c0672 | aliguori | memcpy(&outbuf[r->iov.iov_len], s->drive_serial_str, l); |
523 | c87c0672 | aliguori | r->iov.iov_len += l; |
524 | 1d4db89c | balrog | } |
525 | 1d4db89c | balrog | |
526 | 1d4db89c | balrog | break;
|
527 | 1d4db89c | balrog | case 0x83: |
528 | 1d4db89c | balrog | { |
529 | 1d4db89c | balrog | /* Device identification page, mandatory */
|
530 | 1d4db89c | balrog | int max_len = 255 - 8; |
531 | 1d4db89c | balrog | int id_len = strlen(bdrv_get_device_name(s->bdrv));
|
532 | 1d4db89c | balrog | if (id_len > max_len)
|
533 | 1d4db89c | balrog | id_len = max_len; |
534 | 1d4db89c | balrog | |
535 | 1d4db89c | balrog | DPRINTF("Inquiry EVPD[Device identification] "
|
536 | 1d4db89c | balrog | "buffer size %d\n", len);
|
537 | c87c0672 | aliguori | r->iov.iov_len = 0;
|
538 | 1d4db89c | balrog | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
539 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 5;
|
540 | 1d4db89c | balrog | } else {
|
541 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0;
|
542 | 1d4db89c | balrog | } |
543 | 1d4db89c | balrog | |
544 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x83; // this page |
545 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x00;
|
546 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 3 + id_len;
|
547 | 1d4db89c | balrog | |
548 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0x2; // ASCII |
549 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0; // not officially assigned |
550 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = 0; // reserved |
551 | c87c0672 | aliguori | outbuf[r->iov.iov_len++] = id_len; // length of data following
|
552 | 1d4db89c | balrog | |
553 | c87c0672 | aliguori | memcpy(&outbuf[r->iov.iov_len], |
554 | 1d4db89c | balrog | bdrv_get_device_name(s->bdrv), id_len); |
555 | c87c0672 | aliguori | r->iov.iov_len += id_len; |
556 | 1d4db89c | balrog | } |
557 | 1d4db89c | balrog | break;
|
558 | 1d4db89c | balrog | default:
|
559 | 1d4db89c | balrog | BADF("Error: unsupported Inquiry (EVPD[%02X]) "
|
560 | 1d4db89c | balrog | "buffer size %d\n", page_code, len);
|
561 | 1d4db89c | balrog | goto fail;
|
562 | 1d4db89c | balrog | } |
563 | 1d4db89c | balrog | /* done with EVPD */
|
564 | 1d4db89c | balrog | break;
|
565 | 1d4db89c | balrog | } |
566 | 1d4db89c | balrog | else {
|
567 | 1d4db89c | balrog | /* Standard INQUIRY data */
|
568 | 1d4db89c | balrog | if (buf[2] != 0) { |
569 | 1d4db89c | balrog | BADF("Error: Inquiry (STANDARD) page or code "
|
570 | 1d4db89c | balrog | "is non-zero [%02X]\n", buf[2]); |
571 | 1d4db89c | balrog | goto fail;
|
572 | 1d4db89c | balrog | } |
573 | 1d4db89c | balrog | |
574 | 1d4db89c | balrog | /* PAGE CODE == 0 */
|
575 | 1d4db89c | balrog | if (len < 5) { |
576 | 1d4db89c | balrog | BADF("Error: Inquiry (STANDARD) buffer size %d "
|
577 | 1d4db89c | balrog | "is less than 5\n", len);
|
578 | 1d4db89c | balrog | goto fail;
|
579 | 1d4db89c | balrog | } |
580 | 1d4db89c | balrog | |
581 | 1d4db89c | balrog | if (len < 36) { |
582 | 1d4db89c | balrog | BADF("Error: Inquiry (STANDARD) buffer size %d "
|
583 | 1d4db89c | balrog | "is less than 36 (TODO: only 5 required)\n", len);
|
584 | 1d4db89c | balrog | } |
585 | 2e5d83bb | pbrook | } |
586 | 57575058 | balrog | |
587 | 57575058 | balrog | if(len > SCSI_MAX_INQUIRY_LEN)
|
588 | 57575058 | balrog | len = SCSI_MAX_INQUIRY_LEN; |
589 | 57575058 | balrog | |
590 | 57575058 | balrog | memset(outbuf, 0, len);
|
591 | 22864256 | blueswir1 | |
592 | 22864256 | blueswir1 | if (lun || buf[1] >> 5) { |
593 | 22864256 | blueswir1 | outbuf[0] = 0x7f; /* LUN not supported */ |
594 | 22864256 | blueswir1 | } else if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) { |
595 | a917d384 | pbrook | outbuf[0] = 5; |
596 | a917d384 | pbrook | outbuf[1] = 0x80; |
597 | a917d384 | pbrook | memcpy(&outbuf[16], "QEMU CD-ROM ", 16); |
598 | 2e5d83bb | pbrook | } else {
|
599 | a917d384 | pbrook | outbuf[0] = 0; |
600 | a917d384 | pbrook | memcpy(&outbuf[16], "QEMU HARDDISK ", 16); |
601 | 2e5d83bb | pbrook | } |
602 | a917d384 | pbrook | memcpy(&outbuf[8], "QEMU ", 8); |
603 | a917d384 | pbrook | memcpy(&outbuf[32], QEMU_VERSION, 4); |
604 | 17acfe32 | pbrook | /* Identify device as SCSI-3 rev 1.
|
605 | 17acfe32 | pbrook | Some later commands are also implemented. */
|
606 | a917d384 | pbrook | outbuf[2] = 3; |
607 | a917d384 | pbrook | outbuf[3] = 2; /* Format 2 */ |
608 | 57575058 | balrog | outbuf[4] = len - 5; /* Additional Length = (Len - 1) - 4 */ |
609 | a917d384 | pbrook | /* Sync data transfer and TCQ. */
|
610 | a917d384 | pbrook | outbuf[7] = 0x10 | (s->tcq ? 0x02 : 0); |
611 | c87c0672 | aliguori | r->iov.iov_len = len; |
612 | 2e5d83bb | pbrook | break;
|
613 | 2e5d83bb | pbrook | case 0x16: |
614 | 2e5d83bb | pbrook | DPRINTF("Reserve(6)\n");
|
615 | 2e5d83bb | pbrook | if (buf[1] & 1) |
616 | 2e5d83bb | pbrook | goto fail;
|
617 | 2e5d83bb | pbrook | break;
|
618 | 2e5d83bb | pbrook | case 0x17: |
619 | 2e5d83bb | pbrook | DPRINTF("Release(6)\n");
|
620 | 2e5d83bb | pbrook | if (buf[1] & 1) |
621 | 2e5d83bb | pbrook | goto fail;
|
622 | 2e5d83bb | pbrook | break;
|
623 | 2e5d83bb | pbrook | case 0x1a: |
624 | 7d8406be | pbrook | case 0x5a: |
625 | 17acfe32 | pbrook | { |
626 | a917d384 | pbrook | uint8_t *p; |
627 | 17acfe32 | pbrook | int page;
|
628 | 17acfe32 | pbrook | |
629 | 17acfe32 | pbrook | page = buf[2] & 0x3f; |
630 | 17acfe32 | pbrook | DPRINTF("Mode Sense (page %d, len %d)\n", page, len);
|
631 | a917d384 | pbrook | p = outbuf; |
632 | 17acfe32 | pbrook | memset(p, 0, 4); |
633 | a917d384 | pbrook | outbuf[1] = 0; /* Default media type. */ |
634 | a917d384 | pbrook | outbuf[3] = 0; /* Block descriptor length. */ |
635 | 17acfe32 | pbrook | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
636 | a917d384 | pbrook | outbuf[2] = 0x80; /* Readonly. */ |
637 | 17acfe32 | pbrook | } |
638 | 17acfe32 | pbrook | p += 4;
|
639 | 5e65a310 | blueswir1 | if (page == 4) { |
640 | 5e65a310 | blueswir1 | int cylinders, heads, secs;
|
641 | 5e65a310 | blueswir1 | |
642 | 5e65a310 | blueswir1 | /* Rigid disk device geometry page. */
|
643 | 5e65a310 | blueswir1 | p[0] = 4; |
644 | 5e65a310 | blueswir1 | p[1] = 0x16; |
645 | 5e65a310 | blueswir1 | /* if a geometry hint is available, use it */
|
646 | 5e65a310 | blueswir1 | bdrv_get_geometry_hint(s->bdrv, &cylinders, &heads, &secs); |
647 | 5e65a310 | blueswir1 | p[2] = (cylinders >> 16) & 0xff; |
648 | 5e65a310 | blueswir1 | p[3] = (cylinders >> 8) & 0xff; |
649 | 5e65a310 | blueswir1 | p[4] = cylinders & 0xff; |
650 | 5e65a310 | blueswir1 | p[5] = heads & 0xff; |
651 | 5e65a310 | blueswir1 | /* Write precomp start cylinder, disabled */
|
652 | 5e65a310 | blueswir1 | p[6] = (cylinders >> 16) & 0xff; |
653 | 5e65a310 | blueswir1 | p[7] = (cylinders >> 8) & 0xff; |
654 | 5e65a310 | blueswir1 | p[8] = cylinders & 0xff; |
655 | 5e65a310 | blueswir1 | /* Reduced current start cylinder, disabled */
|
656 | 5e65a310 | blueswir1 | p[9] = (cylinders >> 16) & 0xff; |
657 | 5e65a310 | blueswir1 | p[10] = (cylinders >> 8) & 0xff; |
658 | 5e65a310 | blueswir1 | p[11] = cylinders & 0xff; |
659 | 5e65a310 | blueswir1 | /* Device step rate [ns], 200ns */
|
660 | 5e65a310 | blueswir1 | p[12] = 0; |
661 | 5e65a310 | blueswir1 | p[13] = 200; |
662 | 5e65a310 | blueswir1 | /* Landing zone cylinder */
|
663 | 5e65a310 | blueswir1 | p[14] = 0xff; |
664 | 5e65a310 | blueswir1 | p[15] = 0xff; |
665 | 5e65a310 | blueswir1 | p[16] = 0xff; |
666 | 5e65a310 | blueswir1 | /* Medium rotation rate [rpm], 5400 rpm */
|
667 | 5e65a310 | blueswir1 | p[20] = (5400 >> 8) & 0xff; |
668 | 5e65a310 | blueswir1 | p[21] = 5400 & 0xff; |
669 | 5e65a310 | blueswir1 | p += 0x16;
|
670 | 5e65a310 | blueswir1 | } else if (page == 5) { |
671 | 5e65a310 | blueswir1 | int cylinders, heads, secs;
|
672 | 5e65a310 | blueswir1 | |
673 | 5e65a310 | blueswir1 | /* Flexible disk device geometry page. */
|
674 | 5e65a310 | blueswir1 | p[0] = 5; |
675 | 5e65a310 | blueswir1 | p[1] = 0x1e; |
676 | 5e65a310 | blueswir1 | /* Transfer rate [kbit/s], 5Mbit/s */
|
677 | 5e65a310 | blueswir1 | p[2] = 5000 >> 8; |
678 | 5e65a310 | blueswir1 | p[3] = 5000 & 0xff; |
679 | 5e65a310 | blueswir1 | /* if a geometry hint is available, use it */
|
680 | 5e65a310 | blueswir1 | bdrv_get_geometry_hint(s->bdrv, &cylinders, &heads, &secs); |
681 | 5e65a310 | blueswir1 | p[4] = heads & 0xff; |
682 | 5e65a310 | blueswir1 | p[5] = secs & 0xff; |
683 | 5e65a310 | blueswir1 | p[6] = s->cluster_size * 2; |
684 | 5e65a310 | blueswir1 | p[8] = (cylinders >> 8) & 0xff; |
685 | 5e65a310 | blueswir1 | p[9] = cylinders & 0xff; |
686 | 5e65a310 | blueswir1 | /* Write precomp start cylinder, disabled */
|
687 | 5e65a310 | blueswir1 | p[10] = (cylinders >> 8) & 0xff; |
688 | 5e65a310 | blueswir1 | p[11] = cylinders & 0xff; |
689 | 5e65a310 | blueswir1 | /* Reduced current start cylinder, disabled */
|
690 | 5e65a310 | blueswir1 | p[12] = (cylinders >> 8) & 0xff; |
691 | 5e65a310 | blueswir1 | p[13] = cylinders & 0xff; |
692 | 5e65a310 | blueswir1 | /* Device step rate [100us], 100us */
|
693 | 5e65a310 | blueswir1 | p[14] = 0; |
694 | 5e65a310 | blueswir1 | p[15] = 1; |
695 | 5e65a310 | blueswir1 | /* Device step pulse width [us], 1us */
|
696 | 5e65a310 | blueswir1 | p[16] = 1; |
697 | 5e65a310 | blueswir1 | /* Device head settle delay [100us], 100us */
|
698 | 5e65a310 | blueswir1 | p[17] = 0; |
699 | 5e65a310 | blueswir1 | p[18] = 1; |
700 | 5e65a310 | blueswir1 | /* Motor on delay [0.1s], 0.1s */
|
701 | 5e65a310 | blueswir1 | p[19] = 1; |
702 | 5e65a310 | blueswir1 | /* Motor off delay [0.1s], 0.1s */
|
703 | 5e65a310 | blueswir1 | p[20] = 1; |
704 | 5e65a310 | blueswir1 | /* Medium rotation rate [rpm], 5400 rpm */
|
705 | 5e65a310 | blueswir1 | p[28] = (5400 >> 8) & 0xff; |
706 | 5e65a310 | blueswir1 | p[29] = 5400 & 0xff; |
707 | 5e65a310 | blueswir1 | p += 0x1e;
|
708 | 5e65a310 | blueswir1 | } else if ((page == 8 || page == 0x3f)) { |
709 | 17acfe32 | pbrook | /* Caching page. */
|
710 | 67cd24a8 | ths | memset(p,0,20); |
711 | 17acfe32 | pbrook | p[0] = 8; |
712 | 17acfe32 | pbrook | p[1] = 0x12; |
713 | 17acfe32 | pbrook | p[2] = 4; /* WCE */ |
714 | 67cd24a8 | ths | p += 20;
|
715 | 17acfe32 | pbrook | } |
716 | 17acfe32 | pbrook | if ((page == 0x3f || page == 0x2a) |
717 | 17acfe32 | pbrook | && (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM)) { |
718 | 17acfe32 | pbrook | /* CD Capabilities and Mechanical Status page. */
|
719 | 17acfe32 | pbrook | p[0] = 0x2a; |
720 | 17acfe32 | pbrook | p[1] = 0x14; |
721 | 17acfe32 | pbrook | p[2] = 3; // CD-R & CD-RW read |
722 | 17acfe32 | pbrook | p[3] = 0; // Writing not supported |
723 | 17acfe32 | pbrook | p[4] = 0x7f; /* Audio, composite, digital out, |
724 | 17acfe32 | pbrook | mode 2 form 1&2, multi session */
|
725 | 17acfe32 | pbrook | p[5] = 0xff; /* CD DA, DA accurate, RW supported, |
726 | 17acfe32 | pbrook | RW corrected, C2 errors, ISRC,
|
727 | 17acfe32 | pbrook | UPC, Bar code */
|
728 | 17acfe32 | pbrook | p[6] = 0x2d | (bdrv_is_locked(s->bdrv)? 2 : 0); |
729 | 17acfe32 | pbrook | /* Locking supported, jumper present, eject, tray */
|
730 | 17acfe32 | pbrook | p[7] = 0; /* no volume & mute control, no |
731 | 17acfe32 | pbrook | changer */
|
732 | 17acfe32 | pbrook | p[8] = (50 * 176) >> 8; // 50x read speed |
733 | 17acfe32 | pbrook | p[9] = (50 * 176) & 0xff; |
734 | 17acfe32 | pbrook | p[10] = 0 >> 8; // No volume |
735 | 17acfe32 | pbrook | p[11] = 0 & 0xff; |
736 | 17acfe32 | pbrook | p[12] = 2048 >> 8; // 2M buffer |
737 | 17acfe32 | pbrook | p[13] = 2048 & 0xff; |
738 | 17acfe32 | pbrook | p[14] = (16 * 176) >> 8; // 16x read speed current |
739 | 17acfe32 | pbrook | p[15] = (16 * 176) & 0xff; |
740 | 17acfe32 | pbrook | p[18] = (16 * 176) >> 8; // 16x write speed |
741 | 17acfe32 | pbrook | p[19] = (16 * 176) & 0xff; |
742 | 17acfe32 | pbrook | p[20] = (16 * 176) >> 8; // 16x write speed current |
743 | 17acfe32 | pbrook | p[21] = (16 * 176) & 0xff; |
744 | 67cd24a8 | ths | p += 22;
|
745 | 17acfe32 | pbrook | } |
746 | c87c0672 | aliguori | r->iov.iov_len = p - outbuf; |
747 | c87c0672 | aliguori | outbuf[0] = r->iov.iov_len - 4; |
748 | c87c0672 | aliguori | if (r->iov.iov_len > len)
|
749 | c87c0672 | aliguori | r->iov.iov_len = len; |
750 | 7d8406be | pbrook | } |
751 | 17acfe32 | pbrook | break;
|
752 | 17acfe32 | pbrook | case 0x1b: |
753 | 17acfe32 | pbrook | DPRINTF("Start Stop Unit\n");
|
754 | b2056c16 | blueswir1 | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM &&
|
755 | b2056c16 | blueswir1 | (buf[4] & 2)) |
756 | b2056c16 | blueswir1 | /* load/eject medium */
|
757 | b2056c16 | blueswir1 | bdrv_eject(s->bdrv, !(buf[4] & 1)); |
758 | 17acfe32 | pbrook | break;
|
759 | 17acfe32 | pbrook | case 0x1e: |
760 | 17acfe32 | pbrook | DPRINTF("Prevent Allow Medium Removal (prevent = %d)\n", buf[4] & 3); |
761 | 17acfe32 | pbrook | bdrv_set_locked(s->bdrv, buf[4] & 1); |
762 | 2e5d83bb | pbrook | break;
|
763 | 2e5d83bb | pbrook | case 0x25: |
764 | 2e5d83bb | pbrook | DPRINTF("Read Capacity\n");
|
765 | 2e5d83bb | pbrook | /* The normal LEN field for this command is zero. */
|
766 | a917d384 | pbrook | memset(outbuf, 0, 8); |
767 | 2e5d83bb | pbrook | bdrv_get_geometry(s->bdrv, &nb_sectors); |
768 | c1c0438c | aliguori | nb_sectors /= s->cluster_size; |
769 | 51c1ebb1 | pbrook | /* Returned value is the address of the last sector. */
|
770 | 51c1ebb1 | pbrook | if (nb_sectors) {
|
771 | 51c1ebb1 | pbrook | nb_sectors--; |
772 | 274fb0e1 | aliguori | /* Remember the new size for read/write sanity checking. */
|
773 | 274fb0e1 | aliguori | s->max_lba = nb_sectors; |
774 | e035b43d | aliguori | /* Clip to 2TB, instead of returning capacity modulo 2TB. */
|
775 | e035b43d | aliguori | if (nb_sectors > UINT32_MAX)
|
776 | e035b43d | aliguori | nb_sectors = UINT32_MAX; |
777 | a917d384 | pbrook | outbuf[0] = (nb_sectors >> 24) & 0xff; |
778 | a917d384 | pbrook | outbuf[1] = (nb_sectors >> 16) & 0xff; |
779 | a917d384 | pbrook | outbuf[2] = (nb_sectors >> 8) & 0xff; |
780 | a917d384 | pbrook | outbuf[3] = nb_sectors & 0xff; |
781 | a917d384 | pbrook | outbuf[4] = 0; |
782 | a917d384 | pbrook | outbuf[5] = 0; |
783 | a917d384 | pbrook | outbuf[6] = s->cluster_size * 2; |
784 | a917d384 | pbrook | outbuf[7] = 0; |
785 | c87c0672 | aliguori | r->iov.iov_len = 8;
|
786 | 51c1ebb1 | pbrook | } else {
|
787 | 58a2c436 | blueswir1 | notready:
|
788 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_NOT_READY); |
789 | 35f1df84 | pbrook | return 0; |
790 | 51c1ebb1 | pbrook | } |
791 | 2e5d83bb | pbrook | break;
|
792 | 2e5d83bb | pbrook | case 0x08: |
793 | 2e5d83bb | pbrook | case 0x28: |
794 | 86106e59 | aliguori | case 0x88: |
795 | 0bf9e31a | Blue Swirl | DPRINTF("Read (sector %" PRId64 ", count %d)\n", lba, len); |
796 | 274fb0e1 | aliguori | if (lba > s->max_lba)
|
797 | 274fb0e1 | aliguori | goto illegal_lba;
|
798 | a917d384 | pbrook | r->sector = lba * s->cluster_size; |
799 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
800 | 2e5d83bb | pbrook | break;
|
801 | 2e5d83bb | pbrook | case 0x0a: |
802 | 2e5d83bb | pbrook | case 0x2a: |
803 | 86106e59 | aliguori | case 0x8a: |
804 | 0bf9e31a | Blue Swirl | DPRINTF("Write (sector %" PRId64 ", count %d)\n", lba, len); |
805 | 274fb0e1 | aliguori | if (lba > s->max_lba)
|
806 | 274fb0e1 | aliguori | goto illegal_lba;
|
807 | a917d384 | pbrook | r->sector = lba * s->cluster_size; |
808 | a917d384 | pbrook | r->sector_count = len * s->cluster_size; |
809 | 2e5d83bb | pbrook | is_write = 1;
|
810 | 2e5d83bb | pbrook | break;
|
811 | 7d8406be | pbrook | case 0x35: |
812 | 0bf9e31a | Blue Swirl | DPRINTF("Synchronise cache (sector %" PRId64 ", count %d)\n", lba, len); |
813 | 7a6cba61 | pbrook | bdrv_flush(s->bdrv); |
814 | 7d8406be | pbrook | break;
|
815 | 2e5d83bb | pbrook | case 0x43: |
816 | 2e5d83bb | pbrook | { |
817 | 7c22dd52 | pbrook | int start_track, format, msf, toclen;
|
818 | 2e5d83bb | pbrook | |
819 | 2e5d83bb | pbrook | msf = buf[1] & 2; |
820 | 2e5d83bb | pbrook | format = buf[2] & 0xf; |
821 | 2e5d83bb | pbrook | start_track = buf[6];
|
822 | 2e5d83bb | pbrook | bdrv_get_geometry(s->bdrv, &nb_sectors); |
823 | 2e5d83bb | pbrook | DPRINTF("Read TOC (track %d format %d msf %d)\n", start_track, format, msf >> 1); |
824 | ee16b24a | blueswir1 | nb_sectors /= s->cluster_size; |
825 | 2e5d83bb | pbrook | switch(format) {
|
826 | 2e5d83bb | pbrook | case 0: |
827 | a917d384 | pbrook | toclen = cdrom_read_toc(nb_sectors, outbuf, msf, start_track); |
828 | 2e5d83bb | pbrook | break;
|
829 | 2e5d83bb | pbrook | case 1: |
830 | 2e5d83bb | pbrook | /* multi session : only a single session defined */
|
831 | 7c22dd52 | pbrook | toclen = 12;
|
832 | a917d384 | pbrook | memset(outbuf, 0, 12); |
833 | a917d384 | pbrook | outbuf[1] = 0x0a; |
834 | a917d384 | pbrook | outbuf[2] = 0x01; |
835 | a917d384 | pbrook | outbuf[3] = 0x01; |
836 | 2e5d83bb | pbrook | break;
|
837 | 2e5d83bb | pbrook | case 2: |
838 | a917d384 | pbrook | toclen = cdrom_read_toc_raw(nb_sectors, outbuf, msf, start_track); |
839 | 2e5d83bb | pbrook | break;
|
840 | 2e5d83bb | pbrook | default:
|
841 | 7c22dd52 | pbrook | goto error_cmd;
|
842 | 7c22dd52 | pbrook | } |
843 | 7c22dd52 | pbrook | if (toclen > 0) { |
844 | 7c22dd52 | pbrook | if (len > toclen)
|
845 | 7c22dd52 | pbrook | len = toclen; |
846 | c87c0672 | aliguori | r->iov.iov_len = len; |
847 | 7c22dd52 | pbrook | break;
|
848 | 2e5d83bb | pbrook | } |
849 | 7c22dd52 | pbrook | error_cmd:
|
850 | 7c22dd52 | pbrook | DPRINTF("Read TOC error\n");
|
851 | 7c22dd52 | pbrook | goto fail;
|
852 | 2e5d83bb | pbrook | } |
853 | 17acfe32 | pbrook | case 0x46: |
854 | 17acfe32 | pbrook | DPRINTF("Get Configuration (rt %d, maxlen %d)\n", buf[1] & 3, len); |
855 | a917d384 | pbrook | memset(outbuf, 0, 8); |
856 | 1235fc06 | ths | /* ??? This should probably return much more information. For now
|
857 | 17acfe32 | pbrook | just return the basic header indicating the CD-ROM profile. */
|
858 | a917d384 | pbrook | outbuf[7] = 8; // CD-ROM |
859 | c87c0672 | aliguori | r->iov.iov_len = 8;
|
860 | 17acfe32 | pbrook | break;
|
861 | 2e5d83bb | pbrook | case 0x56: |
862 | 2e5d83bb | pbrook | DPRINTF("Reserve(10)\n");
|
863 | 2e5d83bb | pbrook | if (buf[1] & 3) |
864 | 2e5d83bb | pbrook | goto fail;
|
865 | 2e5d83bb | pbrook | break;
|
866 | 2e5d83bb | pbrook | case 0x57: |
867 | 2e5d83bb | pbrook | DPRINTF("Release(10)\n");
|
868 | 2e5d83bb | pbrook | if (buf[1] & 3) |
869 | 2e5d83bb | pbrook | goto fail;
|
870 | 2e5d83bb | pbrook | break;
|
871 | 86106e59 | aliguori | case 0x9e: |
872 | 86106e59 | aliguori | /* Service Action In subcommands. */
|
873 | 86106e59 | aliguori | if ((buf[1] & 31) == 0x10) { |
874 | 86106e59 | aliguori | DPRINTF("SAI READ CAPACITY(16)\n");
|
875 | 86106e59 | aliguori | memset(outbuf, 0, len);
|
876 | 86106e59 | aliguori | bdrv_get_geometry(s->bdrv, &nb_sectors); |
877 | c1c0438c | aliguori | nb_sectors /= s->cluster_size; |
878 | 86106e59 | aliguori | /* Returned value is the address of the last sector. */
|
879 | 86106e59 | aliguori | if (nb_sectors) {
|
880 | 86106e59 | aliguori | nb_sectors--; |
881 | 274fb0e1 | aliguori | /* Remember the new size for read/write sanity checking. */
|
882 | 274fb0e1 | aliguori | s->max_lba = nb_sectors; |
883 | 86106e59 | aliguori | outbuf[0] = (nb_sectors >> 56) & 0xff; |
884 | 86106e59 | aliguori | outbuf[1] = (nb_sectors >> 48) & 0xff; |
885 | 86106e59 | aliguori | outbuf[2] = (nb_sectors >> 40) & 0xff; |
886 | 86106e59 | aliguori | outbuf[3] = (nb_sectors >> 32) & 0xff; |
887 | 86106e59 | aliguori | outbuf[4] = (nb_sectors >> 24) & 0xff; |
888 | 86106e59 | aliguori | outbuf[5] = (nb_sectors >> 16) & 0xff; |
889 | 86106e59 | aliguori | outbuf[6] = (nb_sectors >> 8) & 0xff; |
890 | 86106e59 | aliguori | outbuf[7] = nb_sectors & 0xff; |
891 | 86106e59 | aliguori | outbuf[8] = 0; |
892 | 86106e59 | aliguori | outbuf[9] = 0; |
893 | 86106e59 | aliguori | outbuf[10] = s->cluster_size * 2; |
894 | 86106e59 | aliguori | outbuf[11] = 0; |
895 | 86106e59 | aliguori | /* Protection, exponent and lowest lba field left blank. */
|
896 | c87c0672 | aliguori | r->iov.iov_len = len; |
897 | 86106e59 | aliguori | } else {
|
898 | 86106e59 | aliguori | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_NOT_READY); |
899 | 86106e59 | aliguori | return 0; |
900 | 86106e59 | aliguori | } |
901 | 86106e59 | aliguori | break;
|
902 | 86106e59 | aliguori | } |
903 | 86106e59 | aliguori | DPRINTF("Unsupported Service Action In\n");
|
904 | 86106e59 | aliguori | goto fail;
|
905 | 2e5d83bb | pbrook | case 0xa0: |
906 | 2e5d83bb | pbrook | DPRINTF("Report LUNs (len %d)\n", len);
|
907 | 2e5d83bb | pbrook | if (len < 16) |
908 | 2e5d83bb | pbrook | goto fail;
|
909 | a917d384 | pbrook | memset(outbuf, 0, 16); |
910 | a917d384 | pbrook | outbuf[3] = 8; |
911 | c87c0672 | aliguori | r->iov.iov_len = 16;
|
912 | 2e5d83bb | pbrook | break;
|
913 | 22864256 | blueswir1 | case 0x2f: |
914 | 0bf9e31a | Blue Swirl | DPRINTF("Verify (sector %" PRId64 ", count %d)\n", lba, len); |
915 | 22864256 | blueswir1 | break;
|
916 | 2e5d83bb | pbrook | default:
|
917 | 2e5d83bb | pbrook | DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]); |
918 | 2e5d83bb | pbrook | fail:
|
919 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_ILLEGAL_REQUEST); |
920 | 2e5d83bb | pbrook | return 0; |
921 | 274fb0e1 | aliguori | illegal_lba:
|
922 | 274fb0e1 | aliguori | scsi_command_complete(r, STATUS_CHECK_CONDITION, SENSE_HARDWARE_ERROR); |
923 | 274fb0e1 | aliguori | return 0; |
924 | 2e5d83bb | pbrook | } |
925 | c87c0672 | aliguori | if (r->sector_count == 0 && r->iov.iov_len == 0) { |
926 | 22864256 | blueswir1 | scsi_command_complete(r, STATUS_GOOD, SENSE_NO_SENSE); |
927 | a917d384 | pbrook | } |
928 | c87c0672 | aliguori | len = r->sector_count * 512 + r->iov.iov_len;
|
929 | a917d384 | pbrook | if (is_write) {
|
930 | a917d384 | pbrook | return -len;
|
931 | a917d384 | pbrook | } else {
|
932 | a917d384 | pbrook | if (!r->sector_count)
|
933 | a917d384 | pbrook | r->sector_count = -1;
|
934 | a917d384 | pbrook | return len;
|
935 | 2e5d83bb | pbrook | } |
936 | 2e5d83bb | pbrook | } |
937 | 2e5d83bb | pbrook | |
938 | 8ccc2ace | ths | static void scsi_destroy(SCSIDevice *d) |
939 | 2e5d83bb | pbrook | { |
940 | 8ccc2ace | ths | qemu_free(d->state); |
941 | 8ccc2ace | ths | qemu_free(d); |
942 | 2e5d83bb | pbrook | } |
943 | 2e5d83bb | pbrook | |
944 | 8ccc2ace | ths | SCSIDevice *scsi_disk_init(BlockDriverState *bdrv, int tcq,
|
945 | 8ccc2ace | ths | scsi_completionfn completion, void *opaque)
|
946 | 2e5d83bb | pbrook | { |
947 | 8ccc2ace | ths | SCSIDevice *d; |
948 | 8ccc2ace | ths | SCSIDeviceState *s; |
949 | 274fb0e1 | aliguori | uint64_t nb_sectors; |
950 | 2e5d83bb | pbrook | |
951 | 8ccc2ace | ths | s = (SCSIDeviceState *)qemu_mallocz(sizeof(SCSIDeviceState));
|
952 | 2e5d83bb | pbrook | s->bdrv = bdrv; |
953 | a917d384 | pbrook | s->tcq = tcq; |
954 | 2e5d83bb | pbrook | s->completion = completion; |
955 | 2e5d83bb | pbrook | s->opaque = opaque; |
956 | 2e5d83bb | pbrook | if (bdrv_get_type_hint(s->bdrv) == BDRV_TYPE_CDROM) {
|
957 | 7c22dd52 | pbrook | s->cluster_size = 4;
|
958 | 2e5d83bb | pbrook | } else {
|
959 | 7c22dd52 | pbrook | s->cluster_size = 1;
|
960 | 2e5d83bb | pbrook | } |
961 | 274fb0e1 | aliguori | bdrv_get_geometry(s->bdrv, &nb_sectors); |
962 | 274fb0e1 | aliguori | nb_sectors /= s->cluster_size; |
963 | 274fb0e1 | aliguori | if (nb_sectors)
|
964 | 274fb0e1 | aliguori | nb_sectors--; |
965 | 274fb0e1 | aliguori | s->max_lba = nb_sectors; |
966 | fa879c64 | aliguori | strncpy(s->drive_serial_str, drive_get_serial(s->bdrv), |
967 | fa879c64 | aliguori | sizeof(s->drive_serial_str));
|
968 | fa879c64 | aliguori | if (strlen(s->drive_serial_str) == 0) |
969 | 00766a4e | blueswir1 | pstrcpy(s->drive_serial_str, sizeof(s->drive_serial_str), "0"); |
970 | ea8a5d7f | aliguori | qemu_add_vm_change_state_handler(scsi_dma_restart_cb, s); |
971 | 8ccc2ace | ths | d = (SCSIDevice *)qemu_mallocz(sizeof(SCSIDevice));
|
972 | 8ccc2ace | ths | d->state = s; |
973 | 8ccc2ace | ths | d->destroy = scsi_destroy; |
974 | 8ccc2ace | ths | d->send_command = scsi_send_command; |
975 | 8ccc2ace | ths | d->read_data = scsi_read_data; |
976 | 8ccc2ace | ths | d->write_data = scsi_write_data; |
977 | 8ccc2ace | ths | d->cancel_io = scsi_cancel_io; |
978 | 8ccc2ace | ths | d->get_buf = scsi_get_buf; |
979 | 2e5d83bb | pbrook | |
980 | 8ccc2ace | ths | return d;
|
981 | 8ccc2ace | ths | } |