1 // SPDX-License-Identifier: GPL-2.0
3 * NVM Express device driver tracepoints
4 * Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH
7 #include <asm/unaligned.h>
10 static const char *nvme_trace_delete_sq(struct trace_seq *p, u8 *cdw10)
12 const char *ret = trace_seq_buffer_ptr(p);
13 u16 sqid = get_unaligned_le16(cdw10);
15 trace_seq_printf(p, "sqid=%u", sqid);
21 static const char *nvme_trace_create_sq(struct trace_seq *p, u8 *cdw10)
23 const char *ret = trace_seq_buffer_ptr(p);
24 u16 sqid = get_unaligned_le16(cdw10);
25 u16 qsize = get_unaligned_le16(cdw10 + 2);
26 u16 sq_flags = get_unaligned_le16(cdw10 + 4);
27 u16 cqid = get_unaligned_le16(cdw10 + 6);
30 trace_seq_printf(p, "sqid=%u, qsize=%u, sq_flags=0x%x, cqid=%u",
31 sqid, qsize, sq_flags, cqid);
37 static const char *nvme_trace_delete_cq(struct trace_seq *p, u8 *cdw10)
39 const char *ret = trace_seq_buffer_ptr(p);
40 u16 cqid = get_unaligned_le16(cdw10);
42 trace_seq_printf(p, "cqid=%u", cqid);
48 static const char *nvme_trace_create_cq(struct trace_seq *p, u8 *cdw10)
50 const char *ret = trace_seq_buffer_ptr(p);
51 u16 cqid = get_unaligned_le16(cdw10);
52 u16 qsize = get_unaligned_le16(cdw10 + 2);
53 u16 cq_flags = get_unaligned_le16(cdw10 + 4);
54 u16 irq_vector = get_unaligned_le16(cdw10 + 6);
56 trace_seq_printf(p, "cqid=%u, qsize=%u, cq_flags=0x%x, irq_vector=%u",
57 cqid, qsize, cq_flags, irq_vector);
63 static const char *nvme_trace_admin_identify(struct trace_seq *p, u8 *cdw10)
65 const char *ret = trace_seq_buffer_ptr(p);
67 u16 ctrlid = get_unaligned_le16(cdw10 + 2);
69 trace_seq_printf(p, "cns=%u, ctrlid=%u", cns, ctrlid);
75 static const char *nvme_trace_admin_get_features(struct trace_seq *p,
78 const char *ret = trace_seq_buffer_ptr(p);
80 u8 sel = cdw10[1] & 0x7;
81 u32 cdw11 = get_unaligned_le32(cdw10 + 4);
83 trace_seq_printf(p, "fid=0x%x sel=0x%x cdw11=0x%x", fid, sel, cdw11);
89 static const char *nvme_trace_read_write(struct trace_seq *p, u8 *cdw10)
91 const char *ret = trace_seq_buffer_ptr(p);
92 u64 slba = get_unaligned_le64(cdw10);
93 u16 length = get_unaligned_le16(cdw10 + 8);
94 u16 control = get_unaligned_le16(cdw10 + 10);
95 u32 dsmgmt = get_unaligned_le32(cdw10 + 12);
96 u32 reftag = get_unaligned_le32(cdw10 + 16);
99 "slba=%llu, len=%u, ctrl=0x%x, dsmgmt=%u, reftag=%u",
100 slba, length, control, dsmgmt, reftag);
101 trace_seq_putc(p, 0);
106 static const char *nvme_trace_dsm(struct trace_seq *p, u8 *cdw10)
108 const char *ret = trace_seq_buffer_ptr(p);
110 trace_seq_printf(p, "nr=%u, attributes=%u",
111 get_unaligned_le32(cdw10),
112 get_unaligned_le32(cdw10 + 4));
113 trace_seq_putc(p, 0);
118 static const char *nvme_trace_common(struct trace_seq *p, u8 *cdw10)
120 const char *ret = trace_seq_buffer_ptr(p);
122 trace_seq_printf(p, "cdw10=%*ph", 24, cdw10);
123 trace_seq_putc(p, 0);
128 const char *nvme_trace_parse_admin_cmd(struct trace_seq *p,
129 u8 opcode, u8 *cdw10)
132 case nvme_admin_delete_sq:
133 return nvme_trace_delete_sq(p, cdw10);
134 case nvme_admin_create_sq:
135 return nvme_trace_create_sq(p, cdw10);
136 case nvme_admin_delete_cq:
137 return nvme_trace_delete_cq(p, cdw10);
138 case nvme_admin_create_cq:
139 return nvme_trace_create_cq(p, cdw10);
140 case nvme_admin_identify:
141 return nvme_trace_admin_identify(p, cdw10);
142 case nvme_admin_get_features:
143 return nvme_trace_admin_get_features(p, cdw10);
145 return nvme_trace_common(p, cdw10);
149 const char *nvme_trace_parse_nvm_cmd(struct trace_seq *p,
150 u8 opcode, u8 *cdw10)
155 case nvme_cmd_write_zeroes:
156 return nvme_trace_read_write(p, cdw10);
158 return nvme_trace_dsm(p, cdw10);
160 return nvme_trace_common(p, cdw10);
164 static const char *nvme_trace_fabrics_property_set(struct trace_seq *p, u8 *spc)
166 const char *ret = trace_seq_buffer_ptr(p);
168 u32 ofst = get_unaligned_le32(spc + 4);
169 u64 value = get_unaligned_le64(spc + 8);
171 trace_seq_printf(p, "attrib=%u, ofst=0x%x, value=0x%llx",
172 attrib, ofst, value);
173 trace_seq_putc(p, 0);
177 static const char *nvme_trace_fabrics_connect(struct trace_seq *p, u8 *spc)
179 const char *ret = trace_seq_buffer_ptr(p);
180 u16 recfmt = get_unaligned_le16(spc);
181 u16 qid = get_unaligned_le16(spc + 2);
182 u16 sqsize = get_unaligned_le16(spc + 4);
184 u32 kato = get_unaligned_le32(spc + 8);
186 trace_seq_printf(p, "recfmt=%u, qid=%u, sqsize=%u, cattr=%u, kato=%u",
187 recfmt, qid, sqsize, cattr, kato);
188 trace_seq_putc(p, 0);
192 static const char *nvme_trace_fabrics_property_get(struct trace_seq *p, u8 *spc)
194 const char *ret = trace_seq_buffer_ptr(p);
196 u32 ofst = get_unaligned_le32(spc + 4);
198 trace_seq_printf(p, "attrib=%u, ofst=0x%x", attrib, ofst);
199 trace_seq_putc(p, 0);
203 static const char *nvme_trace_fabrics_common(struct trace_seq *p, u8 *spc)
205 const char *ret = trace_seq_buffer_ptr(p);
207 trace_seq_printf(p, "specific=%*ph", 24, spc);
208 trace_seq_putc(p, 0);
212 const char *nvme_trace_parse_fabrics_cmd(struct trace_seq *p,
216 case nvme_fabrics_type_property_set:
217 return nvme_trace_fabrics_property_set(p, spc);
218 case nvme_fabrics_type_connect:
219 return nvme_trace_fabrics_connect(p, spc);
220 case nvme_fabrics_type_property_get:
221 return nvme_trace_fabrics_property_get(p, spc);
223 return nvme_trace_fabrics_common(p, spc);
227 const char *nvme_trace_disk_name(struct trace_seq *p, char *name)
229 const char *ret = trace_seq_buffer_ptr(p);
232 trace_seq_printf(p, "disk=%s, ", name);
233 trace_seq_putc(p, 0);
238 EXPORT_TRACEPOINT_SYMBOL_GPL(nvme_sq);