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_eh_action(struct trace_seq * p,unsigned int eh_action)42 libata_trace_parse_eh_action(struct trace_seq *p, unsigned int eh_action)
43 {
44 const char *ret = trace_seq_buffer_ptr(p);
45
46 trace_seq_printf(p, "%x", eh_action);
47 if (eh_action) {
48 trace_seq_printf(p, "{ ");
49 if (eh_action & ATA_EH_REVALIDATE)
50 trace_seq_printf(p, "REVALIDATE ");
51 if (eh_action & (ATA_EH_SOFTRESET | ATA_EH_HARDRESET))
52 trace_seq_printf(p, "RESET ");
53 else if (eh_action & ATA_EH_SOFTRESET)
54 trace_seq_printf(p, "SOFTRESET ");
55 else if (eh_action & ATA_EH_HARDRESET)
56 trace_seq_printf(p, "HARDRESET ");
57 if (eh_action & ATA_EH_ENABLE_LINK)
58 trace_seq_printf(p, "ENABLE_LINK ");
59 if (eh_action & ATA_EH_PARK)
60 trace_seq_printf(p, "PARK ");
61 trace_seq_putc(p, '}');
62 }
63 trace_seq_putc(p, 0);
64
65 return ret;
66 }
67
68 const char *
libata_trace_parse_eh_err_mask(struct trace_seq * p,unsigned int eh_err_mask)69 libata_trace_parse_eh_err_mask(struct trace_seq *p, unsigned int eh_err_mask)
70 {
71 const char *ret = trace_seq_buffer_ptr(p);
72
73 trace_seq_printf(p, "%x", eh_err_mask);
74 if (eh_err_mask) {
75 trace_seq_printf(p, "{ ");
76 if (eh_err_mask & AC_ERR_DEV)
77 trace_seq_printf(p, "DEV ");
78 if (eh_err_mask & AC_ERR_HSM)
79 trace_seq_printf(p, "HSM ");
80 if (eh_err_mask & AC_ERR_TIMEOUT)
81 trace_seq_printf(p, "TIMEOUT ");
82 if (eh_err_mask & AC_ERR_MEDIA)
83 trace_seq_printf(p, "MEDIA ");
84 if (eh_err_mask & AC_ERR_ATA_BUS)
85 trace_seq_printf(p, "ATA_BUS ");
86 if (eh_err_mask & AC_ERR_HOST_BUS)
87 trace_seq_printf(p, "HOST_BUS ");
88 if (eh_err_mask & AC_ERR_SYSTEM)
89 trace_seq_printf(p, "SYSTEM ");
90 if (eh_err_mask & AC_ERR_INVALID)
91 trace_seq_printf(p, "INVALID ");
92 if (eh_err_mask & AC_ERR_OTHER)
93 trace_seq_printf(p, "OTHER ");
94 if (eh_err_mask & AC_ERR_NODEV_HINT)
95 trace_seq_printf(p, "NODEV_HINT ");
96 if (eh_err_mask & AC_ERR_NCQ)
97 trace_seq_printf(p, "NCQ ");
98 trace_seq_putc(p, '}');
99 }
100 trace_seq_putc(p, 0);
101
102 return ret;
103 }
104
105 const char *
libata_trace_parse_qc_flags(struct trace_seq * p,unsigned int qc_flags)106 libata_trace_parse_qc_flags(struct trace_seq *p, unsigned int qc_flags)
107 {
108 const char *ret = trace_seq_buffer_ptr(p);
109
110 trace_seq_printf(p, "%x", qc_flags);
111 if (qc_flags) {
112 trace_seq_printf(p, "{ ");
113 if (qc_flags & ATA_QCFLAG_ACTIVE)
114 trace_seq_printf(p, "ACTIVE ");
115 if (qc_flags & ATA_QCFLAG_DMAMAP)
116 trace_seq_printf(p, "DMAMAP ");
117 if (qc_flags & ATA_QCFLAG_IO)
118 trace_seq_printf(p, "IO ");
119 if (qc_flags & ATA_QCFLAG_RESULT_TF)
120 trace_seq_printf(p, "RESULT_TF ");
121 if (qc_flags & ATA_QCFLAG_CLEAR_EXCL)
122 trace_seq_printf(p, "CLEAR_EXCL ");
123 if (qc_flags & ATA_QCFLAG_QUIET)
124 trace_seq_printf(p, "QUIET ");
125 if (qc_flags & ATA_QCFLAG_RETRY)
126 trace_seq_printf(p, "RETRY ");
127 if (qc_flags & ATA_QCFLAG_FAILED)
128 trace_seq_printf(p, "FAILED ");
129 if (qc_flags & ATA_QCFLAG_SENSE_VALID)
130 trace_seq_printf(p, "SENSE_VALID ");
131 if (qc_flags & ATA_QCFLAG_EH_SCHEDULED)
132 trace_seq_printf(p, "EH_SCHEDULED ");
133 trace_seq_putc(p, '}');
134 }
135 trace_seq_putc(p, 0);
136
137 return ret;
138 }
139
140 const char *
libata_trace_parse_subcmd(struct trace_seq * p,unsigned char cmd,unsigned char feature,unsigned char hob_nsect)141 libata_trace_parse_subcmd(struct trace_seq *p, unsigned char cmd,
142 unsigned char feature, unsigned char hob_nsect)
143 {
144 const char *ret = trace_seq_buffer_ptr(p);
145
146 switch (cmd) {
147 case ATA_CMD_FPDMA_RECV:
148 switch (hob_nsect & 0x5f) {
149 case ATA_SUBCMD_FPDMA_RECV_RD_LOG_DMA_EXT:
150 trace_seq_printf(p, " READ_LOG_DMA_EXT");
151 break;
152 case ATA_SUBCMD_FPDMA_RECV_ZAC_MGMT_IN:
153 trace_seq_printf(p, " ZAC_MGMT_IN");
154 break;
155 }
156 break;
157 case ATA_CMD_FPDMA_SEND:
158 switch (hob_nsect & 0x5f) {
159 case ATA_SUBCMD_FPDMA_SEND_WR_LOG_DMA_EXT:
160 trace_seq_printf(p, " WRITE_LOG_DMA_EXT");
161 break;
162 case ATA_SUBCMD_FPDMA_SEND_DSM:
163 trace_seq_printf(p, " DATASET_MANAGEMENT");
164 break;
165 }
166 break;
167 case ATA_CMD_NCQ_NON_DATA:
168 switch (feature) {
169 case ATA_SUBCMD_NCQ_NON_DATA_ABORT_QUEUE:
170 trace_seq_printf(p, " ABORT_QUEUE");
171 break;
172 case ATA_SUBCMD_NCQ_NON_DATA_SET_FEATURES:
173 trace_seq_printf(p, " SET_FEATURES");
174 break;
175 case ATA_SUBCMD_NCQ_NON_DATA_ZERO_EXT:
176 trace_seq_printf(p, " ZERO_EXT");
177 break;
178 case ATA_SUBCMD_NCQ_NON_DATA_ZAC_MGMT_OUT:
179 trace_seq_printf(p, " ZAC_MGMT_OUT");
180 break;
181 }
182 break;
183 case ATA_CMD_ZAC_MGMT_IN:
184 switch (feature) {
185 case ATA_SUBCMD_ZAC_MGMT_IN_REPORT_ZONES:
186 trace_seq_printf(p, " REPORT_ZONES");
187 break;
188 }
189 break;
190 case ATA_CMD_ZAC_MGMT_OUT:
191 switch (feature) {
192 case ATA_SUBCMD_ZAC_MGMT_OUT_CLOSE_ZONE:
193 trace_seq_printf(p, " CLOSE_ZONE");
194 break;
195 case ATA_SUBCMD_ZAC_MGMT_OUT_FINISH_ZONE:
196 trace_seq_printf(p, " FINISH_ZONE");
197 break;
198 case ATA_SUBCMD_ZAC_MGMT_OUT_OPEN_ZONE:
199 trace_seq_printf(p, " OPEN_ZONE");
200 break;
201 case ATA_SUBCMD_ZAC_MGMT_OUT_RESET_WRITE_POINTER:
202 trace_seq_printf(p, " RESET_WRITE_POINTER");
203 break;
204 }
205 break;
206 }
207 trace_seq_putc(p, 0);
208
209 return ret;
210 }
211