1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * libata-trace.c - trace functions for libata
4 *
5 * Copyright 2015 Hannes Reinecke
6 * Copyright 2015 SUSE Linux GmbH
7 */
8
9 #include <linux/kernel.h>
10 #include <linux/trace_seq.h>
11 #include <trace/events/libata.h>
12
13 const char *
libata_trace_parse_status(struct trace_seq * p,unsigned char status)14 libata_trace_parse_status(struct trace_seq *p, unsigned char status)
15 {
16 const char *ret = trace_seq_buffer_ptr(p);
17
18 trace_seq_printf(p, "{ ");
19 if (status & ATA_BUSY)
20 trace_seq_printf(p, "BUSY ");
21 if (status & ATA_DRDY)
22 trace_seq_printf(p, "DRDY ");
23 if (status & ATA_DF)
24 trace_seq_printf(p, "DF ");
25 if (status & ATA_DSC)
26 trace_seq_printf(p, "DSC ");
27 if (status & ATA_DRQ)
28 trace_seq_printf(p, "DRQ ");
29 if (status & ATA_CORR)
30 trace_seq_printf(p, "CORR ");
31 if (status & ATA_SENSE)
32 trace_seq_printf(p, "SENSE ");
33 if (status & ATA_ERR)
34 trace_seq_printf(p, "ERR ");
35 trace_seq_putc(p, '}');
36 trace_seq_putc(p, 0);
37
38 return ret;
39 }
40
41 const char *
libata_trace_parse_host_stat(struct trace_seq * p,unsigned char host_stat)42 libata_trace_parse_host_stat(struct trace_seq *p, unsigned char host_stat)
43 {
44 const char *ret = trace_seq_buffer_ptr(p);
45
46 trace_seq_printf(p, "{ ");
47 if (host_stat & ATA_DMA_INTR)
48 trace_seq_printf(p, "INTR ");
49 if (host_stat & ATA_DMA_ERR)
50 trace_seq_printf(p, "ERR ");
51 if (host_stat & ATA_DMA_ACTIVE)
52 trace_seq_printf(p, "ACTIVE ");
53 trace_seq_putc(p, '}');
54 trace_seq_putc(p, 0);
55
56 return ret;
57 }
58
59 const char *
libata_trace_parse_eh_action(struct trace_seq * p,unsigned int eh_action)60 libata_trace_parse_eh_action(struct trace_seq *p, unsigned int eh_action)
61 {
62 const char *ret = trace_seq_buffer_ptr(p);
63
64 trace_seq_printf(p, "%x", eh_action);
65 if (eh_action) {
66 trace_seq_printf(p, "{ ");
67 if (eh_action & ATA_EH_REVALIDATE)
68 trace_seq_printf(p, "REVALIDATE ");
69 if (eh_action & (ATA_EH_SOFTRESET | ATA_EH_HARDRESET))
70 trace_seq_printf(p, "RESET ");
71 else if (eh_action & ATA_EH_SOFTRESET)
72 trace_seq_printf(p, "SOFTRESET ");
73 else if (eh_action & ATA_EH_HARDRESET)
74 trace_seq_printf(p, "HARDRESET ");
75 if (eh_action & ATA_EH_ENABLE_LINK)
76 trace_seq_printf(p, "ENABLE_LINK ");
77 if (eh_action & ATA_EH_PARK)
78 trace_seq_printf(p, "PARK ");
79 trace_seq_putc(p, '}');
80 }
81 trace_seq_putc(p, 0);
82
83 return ret;
84 }
85
86 const char *
libata_trace_parse_eh_err_mask(struct trace_seq * p,unsigned int eh_err_mask)87 libata_trace_parse_eh_err_mask(struct trace_seq *p, unsigned int eh_err_mask)
88 {
89 const char *ret = trace_seq_buffer_ptr(p);
90
91 trace_seq_printf(p, "%x", eh_err_mask);
92 if (eh_err_mask) {
93 trace_seq_printf(p, "{ ");
94 if (eh_err_mask & AC_ERR_DEV)
95 trace_seq_printf(p, "DEV ");
96 if (eh_err_mask & AC_ERR_HSM)
97 trace_seq_printf(p, "HSM ");
98 if (eh_err_mask & AC_ERR_TIMEOUT)
99 trace_seq_printf(p, "TIMEOUT ");
100 if (eh_err_mask & AC_ERR_MEDIA)
101 trace_seq_printf(p, "MEDIA ");
102 if (eh_err_mask & AC_ERR_ATA_BUS)
103 trace_seq_printf(p, "ATA_BUS ");
104 if (eh_err_mask & AC_ERR_HOST_BUS)
105 trace_seq_printf(p, "HOST_BUS ");
106 if (eh_err_mask & AC_ERR_SYSTEM)
107 trace_seq_printf(p, "SYSTEM ");
108 if (eh_err_mask & AC_ERR_INVALID)
109 trace_seq_printf(p, "INVALID ");
110 if (eh_err_mask & AC_ERR_OTHER)
111 trace_seq_printf(p, "OTHER ");
112 if (eh_err_mask & AC_ERR_NODEV_HINT)
113 trace_seq_printf(p, "NODEV_HINT ");
114 if (eh_err_mask & AC_ERR_NCQ)
115 trace_seq_printf(p, "NCQ ");
116 trace_seq_putc(p, '}');
117 }
118 trace_seq_putc(p, 0);
119
120 return ret;
121 }
122
123 const char *
libata_trace_parse_qc_flags(struct trace_seq * p,unsigned int qc_flags)124 libata_trace_parse_qc_flags(struct trace_seq *p, unsigned int qc_flags)
125 {
126 const char *ret = trace_seq_buffer_ptr(p);
127
128 trace_seq_printf(p, "%x", qc_flags);
129 if (qc_flags) {
130 trace_seq_printf(p, "{ ");
131 if (qc_flags & ATA_QCFLAG_ACTIVE)
132 trace_seq_printf(p, "ACTIVE ");
133 if (qc_flags & ATA_QCFLAG_DMAMAP)
134 trace_seq_printf(p, "DMAMAP ");
135 if (qc_flags & ATA_QCFLAG_IO)
136 trace_seq_printf(p, "IO ");
137 if (qc_flags & ATA_QCFLAG_RESULT_TF)
138 trace_seq_printf(p, "RESULT_TF ");
139 if (qc_flags & ATA_QCFLAG_CLEAR_EXCL)
140 trace_seq_printf(p, "CLEAR_EXCL ");
141 if (qc_flags & ATA_QCFLAG_QUIET)
142 trace_seq_printf(p, "QUIET ");
143 if (qc_flags & ATA_QCFLAG_RETRY)
144 trace_seq_printf(p, "RETRY ");
145 if (qc_flags & ATA_QCFLAG_EH)
146 trace_seq_printf(p, "FAILED ");
147 if (qc_flags & ATA_QCFLAG_SENSE_VALID)
148 trace_seq_printf(p, "SENSE_VALID ");
149 if (qc_flags & ATA_QCFLAG_EH_SCHEDULED)
150 trace_seq_printf(p, "EH_SCHEDULED ");
151 trace_seq_putc(p, '}');
152 }
153 trace_seq_putc(p, 0);
154
155 return ret;
156 }
157
158 const char *
libata_trace_parse_tf_flags(struct trace_seq * p,unsigned int tf_flags)159 libata_trace_parse_tf_flags(struct trace_seq *p, unsigned int tf_flags)
160 {
161 const char *ret = trace_seq_buffer_ptr(p);
162
163 trace_seq_printf(p, "%x", tf_flags);
164 if (tf_flags) {
165 trace_seq_printf(p, "{ ");
166 if (tf_flags & ATA_TFLAG_LBA48)
167 trace_seq_printf(p, "LBA48 ");
168 if (tf_flags & ATA_TFLAG_ISADDR)
169 trace_seq_printf(p, "ISADDR ");
170 if (tf_flags & ATA_TFLAG_DEVICE)
171 trace_seq_printf(p, "DEV ");
172 if (tf_flags & ATA_TFLAG_WRITE)
173 trace_seq_printf(p, "WRITE ");
174 if (tf_flags & ATA_TFLAG_LBA)
175 trace_seq_printf(p, "LBA ");
176 if (tf_flags & ATA_TFLAG_FUA)
177 trace_seq_printf(p, "FUA ");
178 if (tf_flags & ATA_TFLAG_POLLING)
179 trace_seq_printf(p, "POLL ");
180 trace_seq_putc(p, '}');
181 }
182 trace_seq_putc(p, 0);
183
184 return ret;
185 }
186
187 const char *
libata_trace_parse_subcmd(struct trace_seq * p,unsigned char cmd,unsigned char feature,unsigned char hob_nsect)188 libata_trace_parse_subcmd(struct trace_seq *p, unsigned char cmd,
189 unsigned char feature, unsigned char hob_nsect)
190 {
191 const char *ret = trace_seq_buffer_ptr(p);
192
193 switch (cmd) {
194 case ATA_CMD_FPDMA_RECV:
195 switch (hob_nsect & 0x5f) {
196 case ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT:
197 trace_seq_printf(p, " READ_LOG_DMA_EXT");
198 break;
199 case ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN:
200 trace_seq_printf(p, " ZAC_MGMT_IN");
201 break;
202 }
203 break;
204 case ATA_CMD_FPDMA_SEND:
205 switch (hob_nsect & 0x5f) {
206 case ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT:
207 trace_seq_printf(p, " WRITE_LOG_DMA_EXT");
208 break;
209 case ATA_SUBCMD_FPDMA_SEND_DSM:
210 trace_seq_printf(p, " DATASET_MANAGEMENT");
211 break;
212 }
213 break;
214 case ATA_CMD_NCQ_NON_DATA:
215 switch (feature) {
216 case ATA_SUBCMD_NCQ_NON_DATA_ABORT_QUEUE:
217 trace_seq_printf(p, " ABORT_QUEUE");
218 break;
219 case ATA_SUBCMD_NCQ_NON_DATA_SET_FEATURES:
220 trace_seq_printf(p, " SET_FEATURES");
221 break;
222 case ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT:
223 trace_seq_printf(p, " ZERO_EXT");
224 break;
225 case ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT:
226 trace_seq_printf(p, " ZAC_MGMT_OUT");
227 break;
228 }
229 break;
230 case ATA_CMD_ZAC_MGMT_IN:
231 switch (feature) {
232 case ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES:
233 trace_seq_printf(p, " REPORT_ZONES");
234 break;
235 }
236 break;
237 case ATA_CMD_ZAC_MGMT_OUT:
238 switch (feature) {
239 case ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE:
240 trace_seq_printf(p, " CLOSE_ZONE");
241 break;
242 case ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE:
243 trace_seq_printf(p, " FINISH_ZONE");
244 break;
245 case ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE:
246 trace_seq_printf(p, " OPEN_ZONE");
247 break;
248 case ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER:
249 trace_seq_printf(p, " RESET_WRITE_POINTER");
250 break;
251 }
252 break;
253 }
254 trace_seq_putc(p, 0);
255
256 return ret;
257 }
258