2 * Copyright (C) 2010 FUJITSU LIMITED
3 * Copyright (C) 2010 Tomohiro Kusumi <kusumi.tomohiro@jp.fujitsu.com>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 #include <linux/kernel.h>
19 #include <linux/trace_seq.h>
20 #include <trace/events/scsi.h>
22 #define SERVICE_ACTION16(cdb) (cdb[1] & 0x1f)
23 #define SERVICE_ACTION32(cdb) ((cdb[8] << 8) | cdb[9])
26 scsi_trace_misc(struct trace_seq *, unsigned char *, int);
29 scsi_trace_rw6(struct trace_seq *p, unsigned char *cdb, int len)
31 const char *ret = p->buffer + p->len;
32 sector_t lba = 0, txlen = 0;
34 lba |= ((cdb[1] & 0x1F) << 16);
39 trace_seq_printf(p, "lba=%llu txlen=%llu",
40 (unsigned long long)lba, (unsigned long long)txlen);
47 scsi_trace_rw10(struct trace_seq *p, unsigned char *cdb, int len)
49 const char *ret = p->buffer + p->len;
50 sector_t lba = 0, txlen = 0;
52 lba |= (cdb[2] << 24);
53 lba |= (cdb[3] << 16);
56 txlen |= (cdb[7] << 8);
59 trace_seq_printf(p, "lba=%llu txlen=%llu protect=%u",
60 (unsigned long long)lba, (unsigned long long)txlen,
68 scsi_trace_rw12(struct trace_seq *p, unsigned char *cdb, int len)
70 const char *ret = p->buffer + p->len;
71 sector_t lba = 0, txlen = 0;
73 lba |= (cdb[2] << 24);
74 lba |= (cdb[3] << 16);
77 txlen |= (cdb[6] << 24);
78 txlen |= (cdb[7] << 16);
79 txlen |= (cdb[8] << 8);
82 trace_seq_printf(p, "lba=%llu txlen=%llu protect=%u",
83 (unsigned long long)lba, (unsigned long long)txlen,
91 scsi_trace_rw16(struct trace_seq *p, unsigned char *cdb, int len)
93 const char *ret = p->buffer + p->len;
94 sector_t lba = 0, txlen = 0;
96 lba |= ((u64)cdb[2] << 56);
97 lba |= ((u64)cdb[3] << 48);
98 lba |= ((u64)cdb[4] << 40);
99 lba |= ((u64)cdb[5] << 32);
100 lba |= (cdb[6] << 24);
101 lba |= (cdb[7] << 16);
102 lba |= (cdb[8] << 8);
104 txlen |= (cdb[10] << 24);
105 txlen |= (cdb[11] << 16);
106 txlen |= (cdb[12] << 8);
109 trace_seq_printf(p, "lba=%llu txlen=%llu protect=%u",
110 (unsigned long long)lba, (unsigned long long)txlen,
113 if (cdb[0] == WRITE_SAME_16)
114 trace_seq_printf(p, " unmap=%u", cdb[1] >> 3 & 1);
116 trace_seq_putc(p, 0);
122 scsi_trace_rw32(struct trace_seq *p, unsigned char *cdb, int len)
124 const char *ret = p->buffer + p->len, *cmd;
125 sector_t lba = 0, txlen = 0;
128 switch (SERVICE_ACTION32(cdb)) {
142 trace_seq_printf(p, "UNKNOWN");
146 lba |= ((u64)cdb[12] << 56);
147 lba |= ((u64)cdb[13] << 48);
148 lba |= ((u64)cdb[14] << 40);
149 lba |= ((u64)cdb[15] << 32);
150 lba |= (cdb[16] << 24);
151 lba |= (cdb[17] << 16);
152 lba |= (cdb[18] << 8);
154 ei_lbrt |= (cdb[20] << 24);
155 ei_lbrt |= (cdb[21] << 16);
156 ei_lbrt |= (cdb[22] << 8);
158 txlen |= (cdb[28] << 24);
159 txlen |= (cdb[29] << 16);
160 txlen |= (cdb[30] << 8);
163 trace_seq_printf(p, "%s_32 lba=%llu txlen=%llu protect=%u ei_lbrt=%u",
164 cmd, (unsigned long long)lba,
165 (unsigned long long)txlen, cdb[10] >> 5, ei_lbrt);
167 if (SERVICE_ACTION32(cdb) == WRITE_SAME_32)
168 trace_seq_printf(p, " unmap=%u", cdb[10] >> 3 & 1);
171 trace_seq_putc(p, 0);
177 scsi_trace_unmap(struct trace_seq *p, unsigned char *cdb, int len)
179 const char *ret = p->buffer + p->len;
180 unsigned int regions = cdb[7] << 8 | cdb[8];
182 trace_seq_printf(p, "regions=%u", (regions - 8) / 16);
183 trace_seq_putc(p, 0);
189 scsi_trace_service_action_in(struct trace_seq *p, unsigned char *cdb, int len)
191 const char *ret = p->buffer + p->len, *cmd;
195 switch (SERVICE_ACTION16(cdb)) {
196 case SAI_READ_CAPACITY_16:
197 cmd = "READ_CAPACITY_16";
199 case SAI_GET_LBA_STATUS:
200 cmd = "GET_LBA_STATUS";
203 trace_seq_printf(p, "UNKNOWN");
207 lba |= ((u64)cdb[2] << 56);
208 lba |= ((u64)cdb[3] << 48);
209 lba |= ((u64)cdb[4] << 40);
210 lba |= ((u64)cdb[5] << 32);
211 lba |= (cdb[6] << 24);
212 lba |= (cdb[7] << 16);
213 lba |= (cdb[8] << 8);
215 alloc_len |= (cdb[10] << 24);
216 alloc_len |= (cdb[11] << 16);
217 alloc_len |= (cdb[12] << 8);
218 alloc_len |= cdb[13];
220 trace_seq_printf(p, "%s lba=%llu alloc_len=%u", cmd,
221 (unsigned long long)lba, alloc_len);
224 trace_seq_putc(p, 0);
230 scsi_trace_varlen(struct trace_seq *p, unsigned char *cdb, int len)
232 switch (SERVICE_ACTION32(cdb)) {
237 return scsi_trace_rw32(p, cdb, len);
239 return scsi_trace_misc(p, cdb, len);
244 scsi_trace_misc(struct trace_seq *p, unsigned char *cdb, int len)
246 const char *ret = p->buffer + p->len;
248 trace_seq_printf(p, "-");
249 trace_seq_putc(p, 0);
255 scsi_trace_parse_cdb(struct trace_seq *p, unsigned char *cdb, int len)
260 return scsi_trace_rw6(p, cdb, len);
265 return scsi_trace_rw10(p, cdb, len);
269 return scsi_trace_rw12(p, cdb, len);
274 return scsi_trace_rw16(p, cdb, len);
276 return scsi_trace_unmap(p, cdb, len);
277 case SERVICE_ACTION_IN:
278 return scsi_trace_service_action_in(p, cdb, len);
279 case VARIABLE_LENGTH_CMD:
280 return scsi_trace_varlen(p, cdb, len);
282 return scsi_trace_misc(p, cdb, len);