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