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 | |
10 | static 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 | |
22 | static 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 | |
36 | static 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 | |
52 | static 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 | |
66 | static 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 | |
83 | static 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 | |
95 | static 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 | |
105 | const 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 | |
122 | static 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 | |
150 | static 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 | |
183 | const 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 | |
203 | static 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 | |
217 | static 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 | |
233 | static 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 | |
245 | static 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 | |
259 | static 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 | |
273 | static 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 | |
282 | const 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 | |
301 | const 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 | |
312 | const 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 | |