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);