1 // SPDX-License-Identifier: GPL-2.0
3 * NVM Express target device driver tracepoints
4 * Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH
7 #include <asm/unaligned.h>
10 static const char *nvmet_trace_admin_identify(struct trace_seq
*p
, u8
*cdw10
)
12 const char *ret
= trace_seq_buffer_ptr(p
);
14 u16 ctrlid
= get_unaligned_le16(cdw10
+ 2);
16 trace_seq_printf(p
, "cns=%u, ctrlid=%u", cns
, ctrlid
);
22 static const char *nvmet_trace_admin_get_features(struct trace_seq
*p
,
25 const char *ret
= trace_seq_buffer_ptr(p
);
27 u8 sel
= cdw10
[1] & 0x7;
28 u32 cdw11
= get_unaligned_le32(cdw10
+ 4);
30 trace_seq_printf(p
, "fid=0x%x, sel=0x%x, cdw11=0x%x", fid
, sel
, cdw11
);
36 static const char *nvmet_trace_get_lba_status(struct trace_seq
*p
,
39 const char *ret
= trace_seq_buffer_ptr(p
);
40 u64 slba
= get_unaligned_le64(cdw10
);
41 u32 mndw
= get_unaligned_le32(cdw10
+ 8);
42 u16 rl
= get_unaligned_le16(cdw10
+ 12);
45 trace_seq_printf(p
, "slba=0x%llx, mndw=0x%x, rl=0x%x, atype=%u",
46 slba
, mndw
, rl
, atype
);
52 static const char *nvmet_trace_admin_set_features(struct trace_seq
*p
,
55 const char *ret
= trace_seq_buffer_ptr(p
);
57 u8 sv
= cdw10
[3] & 0x8;
58 u32 cdw11
= get_unaligned_le32(cdw10
+ 4);
60 trace_seq_printf(p
, "fid=0x%x, sv=0x%x, cdw11=0x%x", fid
, sv
, cdw11
);
66 static const char *nvmet_trace_read_write(struct trace_seq
*p
, u8
*cdw10
)
68 const char *ret
= trace_seq_buffer_ptr(p
);
69 u64 slba
= get_unaligned_le64(cdw10
);
70 u16 length
= get_unaligned_le16(cdw10
+ 8);
71 u16 control
= get_unaligned_le16(cdw10
+ 10);
72 u32 dsmgmt
= get_unaligned_le32(cdw10
+ 12);
73 u32 reftag
= get_unaligned_le32(cdw10
+ 16);
76 "slba=%llu, len=%u, ctrl=0x%x, dsmgmt=%u, reftag=%u",
77 slba
, length
, control
, dsmgmt
, reftag
);
83 static const char *nvmet_trace_dsm(struct trace_seq
*p
, u8
*cdw10
)
85 const char *ret
= trace_seq_buffer_ptr(p
);
87 trace_seq_printf(p
, "nr=%u, attributes=%u",
88 get_unaligned_le32(cdw10
),
89 get_unaligned_le32(cdw10
+ 4));
95 static const char *nvmet_trace_common(struct trace_seq
*p
, u8
*cdw10
)
97 const char *ret
= trace_seq_buffer_ptr(p
);
99 trace_seq_printf(p
, "cdw10=%*ph", 24, cdw10
);
100 trace_seq_putc(p
, 0);
105 const char *nvmet_trace_parse_admin_cmd(struct trace_seq
*p
,
106 u8 opcode
, u8
*cdw10
)
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
);
118 return nvmet_trace_common(p
, cdw10
);
122 const char *nvmet_trace_parse_nvm_cmd(struct trace_seq
*p
,
123 u8 opcode
, u8
*cdw10
)
128 case nvme_cmd_write_zeroes
:
129 return nvmet_trace_read_write(p
, cdw10
);
131 return nvmet_trace_dsm(p
, cdw10
);
133 return nvmet_trace_common(p
, cdw10
);
137 static const char *nvmet_trace_fabrics_property_set(struct trace_seq
*p
,
140 const char *ret
= trace_seq_buffer_ptr(p
);
142 u32 ofst
= get_unaligned_le32(spc
+ 4);
143 u64 value
= get_unaligned_le64(spc
+ 8);
145 trace_seq_printf(p
, "attrib=%u, ofst=0x%x, value=0x%llx",
146 attrib
, ofst
, value
);
147 trace_seq_putc(p
, 0);
151 static const char *nvmet_trace_fabrics_connect(struct trace_seq
*p
,
154 const char *ret
= trace_seq_buffer_ptr(p
);
155 u16 recfmt
= get_unaligned_le16(spc
);
156 u16 qid
= get_unaligned_le16(spc
+ 2);
157 u16 sqsize
= get_unaligned_le16(spc
+ 4);
159 u32 kato
= get_unaligned_le32(spc
+ 8);
161 trace_seq_printf(p
, "recfmt=%u, qid=%u, sqsize=%u, cattr=%u, kato=%u",
162 recfmt
, qid
, sqsize
, cattr
, kato
);
163 trace_seq_putc(p
, 0);
167 static const char *nvmet_trace_fabrics_property_get(struct trace_seq
*p
,
170 const char *ret
= trace_seq_buffer_ptr(p
);
172 u32 ofst
= get_unaligned_le32(spc
+ 4);
174 trace_seq_printf(p
, "attrib=%u, ofst=0x%x", attrib
, ofst
);
175 trace_seq_putc(p
, 0);
179 static const char *nvmet_trace_fabrics_common(struct trace_seq
*p
, u8
*spc
)
181 const char *ret
= trace_seq_buffer_ptr(p
);
183 trace_seq_printf(p
, "specific=%*ph", 24, spc
);
184 trace_seq_putc(p
, 0);
188 const char *nvmet_trace_parse_fabrics_cmd(struct trace_seq
*p
,
192 case nvme_fabrics_type_property_set
:
193 return nvmet_trace_fabrics_property_set(p
, spc
);
194 case nvme_fabrics_type_connect
:
195 return nvmet_trace_fabrics_connect(p
, spc
);
196 case nvme_fabrics_type_property_get
:
197 return nvmet_trace_fabrics_property_get(p
, spc
);
199 return nvmet_trace_fabrics_common(p
, spc
);
203 const char *nvmet_trace_disk_name(struct trace_seq
*p
, char *name
)
205 const char *ret
= trace_seq_buffer_ptr(p
);
208 trace_seq_printf(p
, "disk=%s, ", name
);
209 trace_seq_putc(p
, 0);
214 const char *nvmet_trace_ctrl_id(struct trace_seq
*p
, u16 ctrl_id
)
216 const char *ret
= trace_seq_buffer_ptr(p
);
219 * XXX: We don't know the controller instance before executing the
220 * connect command itself because the connect command for the admin
221 * queue will not provide the cntlid which will be allocated in this
222 * command. In case of io queues, the controller instance will be
223 * mapped by the extra data of the connect command.
224 * If we can know the extra data of the connect command in this stage,
225 * we can update this print statement later.
228 trace_seq_printf(p
, "%d", ctrl_id
);
230 trace_seq_printf(p
, "_");
231 trace_seq_putc(p
, 0);