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_create_sq(struct trace_seq *p, u8 *cdw10)
12 const char *ret = trace_seq_buffer_ptr(p);
13 u16 sqid = get_unaligned_le16(cdw10);
14 u16 qsize = get_unaligned_le16(cdw10 + 2);
15 u16 sq_flags = get_unaligned_le16(cdw10 + 4);
16 u16 cqid = get_unaligned_le16(cdw10 + 6);
19 trace_seq_printf(p, "sqid=%u, qsize=%u, sq_flags=0x%x, cqid=%u",
20 sqid, qsize, sq_flags, cqid);
26 static const char *nvme_trace_create_cq(struct trace_seq *p, u8 *cdw10)
28 const char *ret = trace_seq_buffer_ptr(p);
29 u16 cqid = get_unaligned_le16(cdw10);
30 u16 qsize = get_unaligned_le16(cdw10 + 2);
31 u16 cq_flags = get_unaligned_le16(cdw10 + 4);
32 u16 irq_vector = get_unaligned_le16(cdw10 + 6);
34 trace_seq_printf(p, "cqid=%u, qsize=%u, cq_flags=0x%x, irq_vector=%u",
35 cqid, qsize, cq_flags, irq_vector);
41 static const char *nvme_trace_admin_identify(struct trace_seq *p, u8 *cdw10)
43 const char *ret = trace_seq_buffer_ptr(p);
45 u16 ctrlid = get_unaligned_le16(cdw10 + 2);
47 trace_seq_printf(p, "cns=%u, ctrlid=%u", cns, ctrlid);
53 static const char *nvme_trace_admin_get_features(struct trace_seq *p,
56 const char *ret = trace_seq_buffer_ptr(p);
58 u8 sel = cdw10[1] & 0x7;
59 u32 cdw11 = get_unaligned_le32(cdw10 + 4);
61 trace_seq_printf(p, "fid=0x%x sel=0x%x cdw11=0x%x", fid, sel, cdw11);
67 static const char *nvme_trace_read_write(struct trace_seq *p, u8 *cdw10)
69 const char *ret = trace_seq_buffer_ptr(p);
70 u64 slba = get_unaligned_le64(cdw10);
71 u16 length = get_unaligned_le16(cdw10 + 8);
72 u16 control = get_unaligned_le16(cdw10 + 10);
73 u32 dsmgmt = get_unaligned_le32(cdw10 + 12);
74 u32 reftag = get_unaligned_le32(cdw10 + 16);
77 "slba=%llu, len=%u, ctrl=0x%x, dsmgmt=%u, reftag=%u",
78 slba, length, control, dsmgmt, reftag);
84 static const char *nvme_trace_dsm(struct trace_seq *p, u8 *cdw10)
86 const char *ret = trace_seq_buffer_ptr(p);
88 trace_seq_printf(p, "nr=%u, attributes=%u",
89 get_unaligned_le32(cdw10),
90 get_unaligned_le32(cdw10 + 4));
96 static const char *nvme_trace_common(struct trace_seq *p, u8 *cdw10)
98 const char *ret = trace_seq_buffer_ptr(p);
100 trace_seq_printf(p, "cdw10=%*ph", 24, cdw10);
101 trace_seq_putc(p, 0);
106 const char *nvme_trace_parse_admin_cmd(struct trace_seq *p,
107 u8 opcode, u8 *cdw10)
110 case nvme_admin_create_sq:
111 return nvme_trace_create_sq(p, cdw10);
112 case nvme_admin_create_cq:
113 return nvme_trace_create_cq(p, cdw10);
114 case nvme_admin_identify:
115 return nvme_trace_admin_identify(p, cdw10);
116 case nvme_admin_get_features:
117 return nvme_trace_admin_get_features(p, cdw10);
119 return nvme_trace_common(p, cdw10);
123 const char *nvme_trace_parse_nvm_cmd(struct trace_seq *p,
124 u8 opcode, u8 *cdw10)
129 case nvme_cmd_write_zeroes:
130 return nvme_trace_read_write(p, cdw10);
132 return nvme_trace_dsm(p, cdw10);
134 return nvme_trace_common(p, cdw10);
138 static const char *nvme_trace_fabrics_property_set(struct trace_seq *p, u8 *spc)
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 *nvme_trace_fabrics_connect(struct trace_seq *p, u8 *spc)
153 const char *ret = trace_seq_buffer_ptr(p);
154 u16 recfmt = get_unaligned_le16(spc);
155 u16 qid = get_unaligned_le16(spc + 2);
156 u16 sqsize = get_unaligned_le16(spc + 4);
158 u32 kato = get_unaligned_le32(spc + 8);
160 trace_seq_printf(p, "recfmt=%u, qid=%u, sqsize=%u, cattr=%u, kato=%u",
161 recfmt, qid, sqsize, cattr, kato);
162 trace_seq_putc(p, 0);
166 static const char *nvme_trace_fabrics_property_get(struct trace_seq *p, u8 *spc)
168 const char *ret = trace_seq_buffer_ptr(p);
170 u32 ofst = get_unaligned_le32(spc + 4);
172 trace_seq_printf(p, "attrib=%u, ofst=0x%x", attrib, ofst);
173 trace_seq_putc(p, 0);
177 static const char *nvme_trace_fabrics_common(struct trace_seq *p, u8 *spc)
179 const char *ret = trace_seq_buffer_ptr(p);
181 trace_seq_printf(p, "spcecific=%*ph", 24, spc);
182 trace_seq_putc(p, 0);
186 const char *nvme_trace_parse_fabrics_cmd(struct trace_seq *p,
190 case nvme_fabrics_type_property_set:
191 return nvme_trace_fabrics_property_set(p, spc);
192 case nvme_fabrics_type_connect:
193 return nvme_trace_fabrics_connect(p, spc);
194 case nvme_fabrics_type_property_get:
195 return nvme_trace_fabrics_property_get(p, spc);
197 return nvme_trace_fabrics_common(p, spc);
201 const char *nvme_trace_disk_name(struct trace_seq *p, char *name)
203 const char *ret = trace_seq_buffer_ptr(p);
206 trace_seq_printf(p, "disk=%s, ", name);
207 trace_seq_putc(p, 0);
212 EXPORT_TRACEPOINT_SYMBOL_GPL(nvme_sq);