1// SPDX-License-Identifier: GPL-2.0
2/*
3 * NVM Express target device driver tracepoints
4 * Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH
5 */
6
7#include <asm/unaligned.h>
8#include "trace.h"
9
10static const char *nvmet_trace_admin_identify(struct trace_seq *p, u8 *cdw10)
11{
12 const char *ret = trace_seq_buffer_ptr(s: p);
13 u8 cns = cdw10[0];
14 u16 ctrlid = get_unaligned_le16(p: cdw10 + 2);
15
16 trace_seq_printf(s: p, fmt: "cns=%u, ctrlid=%u", cns, ctrlid);
17 trace_seq_putc(s: p, c: 0);
18
19 return ret;
20}
21
22static const char *nvmet_trace_admin_get_features(struct trace_seq *p,
23 u8 *cdw10)
24{
25 const char *ret = trace_seq_buffer_ptr(s: p);
26 u8 fid = cdw10[0];
27 u8 sel = cdw10[1] & 0x7;
28 u32 cdw11 = get_unaligned_le32(p: cdw10 + 4);
29
30 trace_seq_printf(s: p, fmt: "fid=0x%x, sel=0x%x, cdw11=0x%x", fid, sel, cdw11);
31 trace_seq_putc(s: p, c: 0);
32
33 return ret;
34}
35
36static const char *nvmet_trace_get_lba_status(struct trace_seq *p,
37 u8 *cdw10)
38{
39 const char *ret = trace_seq_buffer_ptr(s: p);
40 u64 slba = get_unaligned_le64(p: cdw10);
41 u32 mndw = get_unaligned_le32(p: cdw10 + 8);
42 u16 rl = get_unaligned_le16(p: cdw10 + 12);
43 u8 atype = cdw10[15];
44
45 trace_seq_printf(s: p, fmt: "slba=0x%llx, mndw=0x%x, rl=0x%x, atype=%u",
46 slba, mndw, rl, atype);
47 trace_seq_putc(s: p, c: 0);
48
49 return ret;
50}
51
52static const char *nvmet_trace_admin_set_features(struct trace_seq *p,
53 u8 *cdw10)
54{
55 const char *ret = trace_seq_buffer_ptr(s: p);
56 u8 fid = cdw10[0];
57 u8 sv = cdw10[3] & 0x8;
58 u32 cdw11 = get_unaligned_le32(p: cdw10 + 4);
59
60 trace_seq_printf(s: p, fmt: "fid=0x%x, sv=0x%x, cdw11=0x%x", fid, sv, cdw11);
61 trace_seq_putc(s: p, c: 0);
62
63 return ret;
64}
65
66static const char *nvmet_trace_read_write(struct trace_seq *p, u8 *cdw10)
67{
68 const char *ret = trace_seq_buffer_ptr(s: p);
69 u64 slba = get_unaligned_le64(p: cdw10);
70 u16 length = get_unaligned_le16(p: cdw10 + 8);
71 u16 control = get_unaligned_le16(p: cdw10 + 10);
72 u32 dsmgmt = get_unaligned_le32(p: cdw10 + 12);
73 u32 reftag = get_unaligned_le32(p: cdw10 + 16);
74
75 trace_seq_printf(s: p,
76 fmt: "slba=%llu, len=%u, ctrl=0x%x, dsmgmt=%u, reftag=%u",
77 slba, length, control, dsmgmt, reftag);
78 trace_seq_putc(s: p, c: 0);
79
80 return ret;
81}
82
83static const char *nvmet_trace_dsm(struct trace_seq *p, u8 *cdw10)
84{
85 const char *ret = trace_seq_buffer_ptr(s: p);
86
87 trace_seq_printf(s: p, fmt: "nr=%u, attributes=%u",
88 get_unaligned_le32(p: cdw10),
89 get_unaligned_le32(p: cdw10 + 4));
90 trace_seq_putc(s: p, c: 0);
91
92 return ret;
93}
94
95static const char *nvmet_trace_common(struct trace_seq *p, u8 *cdw10)
96{
97 const char *ret = trace_seq_buffer_ptr(s: p);
98
99 trace_seq_printf(s: p, fmt: "cdw10=%*ph", 24, cdw10);
100 trace_seq_putc(s: p, c: 0);
101
102 return ret;
103}
104
105const char *nvmet_trace_parse_admin_cmd(struct trace_seq *p,
106 u8 opcode, u8 *cdw10)
107{
108 switch (opcode) {
109 case nvme_admin_identify:
110 return nvmet_trace_admin_identify(p, cdw10);
111 case nvme_admin_set_features:
112 return nvmet_trace_admin_set_features(p, cdw10);
113 case nvme_admin_get_features:
114 return nvmet_trace_admin_get_features(p, cdw10);
115 case nvme_admin_get_lba_status:
116 return nvmet_trace_get_lba_status(p, cdw10);
117 default:
118 return nvmet_trace_common(p, cdw10);
119 }
120}
121
122static const char *nvmet_trace_zone_mgmt_send(struct trace_seq *p, u8 *cdw10)
123{
124 static const char * const zsa_strs[] = {
125 [0x01] = "close zone",
126 [0x02] = "finish zone",
127 [0x03] = "open zone",
128 [0x04] = "reset zone",
129 [0x05] = "offline zone",
130 [0x10] = "set zone descriptor extension"
131 };
132 const char *ret = trace_seq_buffer_ptr(s: p);
133 u64 slba = get_unaligned_le64(p: cdw10);
134 const char *zsa_str;
135 u8 zsa = cdw10[12];
136 u8 all = cdw10[13];
137
138 if (zsa < ARRAY_SIZE(zsa_strs) && zsa_strs[zsa])
139 zsa_str = zsa_strs[zsa];
140 else
141 zsa_str = "reserved";
142
143 trace_seq_printf(s: p, fmt: "slba=%llu, zsa=%u:%s, all=%u",
144 slba, zsa, zsa_str, all);
145 trace_seq_putc(s: p, c: 0);
146
147 return ret;
148}
149
150static const char *nvmet_trace_zone_mgmt_recv(struct trace_seq *p, u8 *cdw10)
151{
152 static const char * const zrasf_strs[] = {
153 [0x00] = "list all zones",
154 [0x01] = "list the zones in the ZSE: Empty state",
155 [0x02] = "list the zones in the ZSIO: Implicitly Opened state",
156 [0x03] = "list the zones in the ZSEO: Explicitly Opened state",
157 [0x04] = "list the zones in the ZSC: Closed state",
158 [0x05] = "list the zones in the ZSF: Full state",
159 [0x06] = "list the zones in the ZSRO: Read Only state",
160 [0x07] = "list the zones in the ZSO: Offline state",
161 [0x09] = "list the zones that have the zone attribute"
162 };
163 const char *ret = trace_seq_buffer_ptr(s: p);
164 u64 slba = get_unaligned_le64(p: cdw10);
165 u32 numd = get_unaligned_le32(p: &cdw10[8]);
166 u8 zra = cdw10[12];
167 u8 zrasf = cdw10[13];
168 const char *zrasf_str;
169 u8 pr = cdw10[14];
170
171 if (zrasf < ARRAY_SIZE(zrasf_strs) && zrasf_strs[zrasf])
172 zrasf_str = zrasf_strs[zrasf];
173 else
174 zrasf_str = "reserved";
175
176 trace_seq_printf(s: p, fmt: "slba=%llu, numd=%u, zra=%u, zrasf=%u:%s, pr=%u",
177 slba, numd, zra, zrasf, zrasf_str, pr);
178 trace_seq_putc(s: p, c: 0);
179
180 return ret;
181}
182
183const char *nvmet_trace_parse_nvm_cmd(struct trace_seq *p,
184 u8 opcode, u8 *cdw10)
185{
186 switch (opcode) {
187 case nvme_cmd_read:
188 case nvme_cmd_write:
189 case nvme_cmd_write_zeroes:
190 case nvme_cmd_zone_append:
191 return nvmet_trace_read_write(p, cdw10);
192 case nvme_cmd_dsm:
193 return nvmet_trace_dsm(p, cdw10);
194 case nvme_cmd_zone_mgmt_send:
195 return nvmet_trace_zone_mgmt_send(p, cdw10);
196 case nvme_cmd_zone_mgmt_recv:
197 return nvmet_trace_zone_mgmt_recv(p, cdw10);
198 default:
199 return nvmet_trace_common(p, cdw10);
200 }
201}
202
203static const char *nvmet_trace_fabrics_property_set(struct trace_seq *p,
204 u8 *spc)
205{
206 const char *ret = trace_seq_buffer_ptr(s: p);
207 u8 attrib = spc[0];
208 u32 ofst = get_unaligned_le32(p: spc + 4);
209 u64 value = get_unaligned_le64(p: spc + 8);
210
211 trace_seq_printf(s: p, fmt: "attrib=%u, ofst=0x%x, value=0x%llx",
212 attrib, ofst, value);
213 trace_seq_putc(s: p, c: 0);
214 return ret;
215}
216
217static const char *nvmet_trace_fabrics_connect(struct trace_seq *p,
218 u8 *spc)
219{
220 const char *ret = trace_seq_buffer_ptr(s: p);
221 u16 recfmt = get_unaligned_le16(p: spc);
222 u16 qid = get_unaligned_le16(p: spc + 2);
223 u16 sqsize = get_unaligned_le16(p: spc + 4);
224 u8 cattr = spc[6];
225 u32 kato = get_unaligned_le32(p: spc + 8);
226
227 trace_seq_printf(s: p, fmt: "recfmt=%u, qid=%u, sqsize=%u, cattr=%u, kato=%u",
228 recfmt, qid, sqsize, cattr, kato);
229 trace_seq_putc(s: p, c: 0);
230 return ret;
231}
232
233static const char *nvmet_trace_fabrics_property_get(struct trace_seq *p,
234 u8 *spc)
235{
236 const char *ret = trace_seq_buffer_ptr(s: p);
237 u8 attrib = spc[0];
238 u32 ofst = get_unaligned_le32(p: spc + 4);
239
240 trace_seq_printf(s: p, fmt: "attrib=%u, ofst=0x%x", attrib, ofst);
241 trace_seq_putc(s: p, c: 0);
242 return ret;
243}
244
245static const char *nvmet_trace_fabrics_auth_send(struct trace_seq *p, u8 *spc)
246{
247 const char *ret = trace_seq_buffer_ptr(s: p);
248 u8 spsp0 = spc[1];
249 u8 spsp1 = spc[2];
250 u8 secp = spc[3];
251 u32 tl = get_unaligned_le32(p: spc + 4);
252
253 trace_seq_printf(s: p, fmt: "spsp0=%02x, spsp1=%02x, secp=%02x, tl=%u",
254 spsp0, spsp1, secp, tl);
255 trace_seq_putc(s: p, c: 0);
256 return ret;
257}
258
259static const char *nvmet_trace_fabrics_auth_receive(struct trace_seq *p, u8 *spc)
260{
261 const char *ret = trace_seq_buffer_ptr(s: p);
262 u8 spsp0 = spc[1];
263 u8 spsp1 = spc[2];
264 u8 secp = spc[3];
265 u32 al = get_unaligned_le32(p: spc + 4);
266
267 trace_seq_printf(s: p, fmt: "spsp0=%02x, spsp1=%02x, secp=%02x, al=%u",
268 spsp0, spsp1, secp, al);
269 trace_seq_putc(s: p, c: 0);
270 return ret;
271}
272
273static const char *nvmet_trace_fabrics_common(struct trace_seq *p, u8 *spc)
274{
275 const char *ret = trace_seq_buffer_ptr(s: p);
276
277 trace_seq_printf(s: p, fmt: "specific=%*ph", 24, spc);
278 trace_seq_putc(s: p, c: 0);
279 return ret;
280}
281
282const char *nvmet_trace_parse_fabrics_cmd(struct trace_seq *p,
283 u8 fctype, u8 *spc)
284{
285 switch (fctype) {
286 case nvme_fabrics_type_property_set:
287 return nvmet_trace_fabrics_property_set(p, spc);
288 case nvme_fabrics_type_connect:
289 return nvmet_trace_fabrics_connect(p, spc);
290 case nvme_fabrics_type_property_get:
291 return nvmet_trace_fabrics_property_get(p, spc);
292 case nvme_fabrics_type_auth_send:
293 return nvmet_trace_fabrics_auth_send(p, spc);
294 case nvme_fabrics_type_auth_receive:
295 return nvmet_trace_fabrics_auth_receive(p, spc);
296 default:
297 return nvmet_trace_fabrics_common(p, spc);
298 }
299}
300
301const char *nvmet_trace_disk_name(struct trace_seq *p, char *name)
302{
303 const char *ret = trace_seq_buffer_ptr(s: p);
304
305 if (*name)
306 trace_seq_printf(s: p, fmt: "disk=%s, ", name);
307 trace_seq_putc(s: p, c: 0);
308
309 return ret;
310}
311
312const char *nvmet_trace_ctrl_id(struct trace_seq *p, u16 ctrl_id)
313{
314 const char *ret = trace_seq_buffer_ptr(s: p);
315
316 /*
317 * XXX: We don't know the controller instance before executing the
318 * connect command itself because the connect command for the admin
319 * queue will not provide the cntlid which will be allocated in this
320 * command. In case of io queues, the controller instance will be
321 * mapped by the extra data of the connect command.
322 * If we can know the extra data of the connect command in this stage,
323 * we can update this print statement later.
324 */
325 if (ctrl_id)
326 trace_seq_printf(s: p, fmt: "%d", ctrl_id);
327 else
328 trace_seq_printf(s: p, fmt: "_");
329 trace_seq_putc(s: p, c: 0);
330
331 return ret;
332}
333
334

source code of linux/drivers/nvme/target/trace.c