1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * NVM Express device driver tracepoints 4 * Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH 5 */ 6 7 #include <asm/unaligned.h> 8 #include "trace.h" 9 10 static const char *nvme_trace_delete_sq(struct trace_seq *p, u8 *cdw10) 11 { 12 const char *ret = trace_seq_buffer_ptr(p); 13 u16 sqid = get_unaligned_le16(cdw10); 14 15 trace_seq_printf(p, "sqid=%u", sqid); 16 trace_seq_putc(p, 0); 17 18 return ret; 19 } 20 21 static const char *nvme_trace_create_sq(struct trace_seq *p, u8 *cdw10) 22 { 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); 28 29 30 trace_seq_printf(p, "sqid=%u, qsize=%u, sq_flags=0x%x, cqid=%u", 31 sqid, qsize, sq_flags, cqid); 32 trace_seq_putc(p, 0); 33 34 return ret; 35 } 36 37 static const char *nvme_trace_delete_cq(struct trace_seq *p, u8 *cdw10) 38 { 39 const char *ret = trace_seq_buffer_ptr(p); 40 u16 cqid = get_unaligned_le16(cdw10); 41 42 trace_seq_printf(p, "cqid=%u", cqid); 43 trace_seq_putc(p, 0); 44 45 return ret; 46 } 47 48 static const char *nvme_trace_create_cq(struct trace_seq *p, u8 *cdw10) 49 { 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); 55 56 trace_seq_printf(p, "cqid=%u, qsize=%u, cq_flags=0x%x, irq_vector=%u", 57 cqid, qsize, cq_flags, irq_vector); 58 trace_seq_putc(p, 0); 59 60 return ret; 61 } 62 63 static const char *nvme_trace_admin_identify(struct trace_seq *p, u8 *cdw10) 64 { 65 const char *ret = trace_seq_buffer_ptr(p); 66 u8 cns = cdw10[0]; 67 u16 ctrlid = get_unaligned_le16(cdw10 + 2); 68 69 trace_seq_printf(p, "cns=%u, ctrlid=%u", cns, ctrlid); 70 trace_seq_putc(p, 0); 71 72 return ret; 73 } 74 75 static const char *nvme_trace_admin_get_features(struct trace_seq *p, 76 u8 *cdw10) 77 { 78 const char *ret = trace_seq_buffer_ptr(p); 79 u8 fid = cdw10[0]; 80 u8 sel = cdw10[1] & 0x7; 81 u32 cdw11 = get_unaligned_le32(cdw10 + 4); 82 83 trace_seq_printf(p, "fid=0x%x sel=0x%x cdw11=0x%x", fid, sel, cdw11); 84 trace_seq_putc(p, 0); 85 86 return ret; 87 } 88 89 static const char *nvme_trace_get_lba_status(struct trace_seq *p, 90 u8 *cdw10) 91 { 92 const char *ret = trace_seq_buffer_ptr(p); 93 u64 slba = get_unaligned_le64(cdw10); 94 u32 mndw = get_unaligned_le32(cdw10 + 8); 95 u16 rl = get_unaligned_le16(cdw10 + 12); 96 u8 atype = cdw10[15]; 97 98 trace_seq_printf(p, "slba=0x%llx, mndw=0x%x, rl=0x%x, atype=%u", 99 slba, mndw, rl, atype); 100 trace_seq_putc(p, 0); 101 102 return ret; 103 } 104 105 static const char *nvme_trace_admin_format_nvm(struct trace_seq *p, u8 *cdw10) 106 { 107 const char *ret = trace_seq_buffer_ptr(p); 108 u8 lbaf = cdw10[0] & 0xF; 109 u8 mset = (cdw10[0] >> 4) & 0x1; 110 u8 pi = (cdw10[0] >> 5) & 0x7; 111 u8 pil = cdw10[1] & 0x1; 112 u8 ses = (cdw10[1] >> 1) & 0x7; 113 114 trace_seq_printf(p, "lbaf=%u, mset=%u, pi=%u, pil=%u, ses=%u", 115 lbaf, mset, pi, pil, ses); 116 117 trace_seq_putc(p, 0); 118 119 return ret; 120 } 121 122 static const char *nvme_trace_read_write(struct trace_seq *p, u8 *cdw10) 123 { 124 const char *ret = trace_seq_buffer_ptr(p); 125 u64 slba = get_unaligned_le64(cdw10); 126 u16 length = get_unaligned_le16(cdw10 + 8); 127 u16 control = get_unaligned_le16(cdw10 + 10); 128 u32 dsmgmt = get_unaligned_le32(cdw10 + 12); 129 u32 reftag = get_unaligned_le32(cdw10 + 16); 130 131 trace_seq_printf(p, 132 "slba=%llu, len=%u, ctrl=0x%x, dsmgmt=%u, reftag=%u", 133 slba, length, control, dsmgmt, reftag); 134 trace_seq_putc(p, 0); 135 136 return ret; 137 } 138 139 static const char *nvme_trace_dsm(struct trace_seq *p, u8 *cdw10) 140 { 141 const char *ret = trace_seq_buffer_ptr(p); 142 143 trace_seq_printf(p, "nr=%u, attributes=%u", 144 get_unaligned_le32(cdw10), 145 get_unaligned_le32(cdw10 + 4)); 146 trace_seq_putc(p, 0); 147 148 return ret; 149 } 150 151 static const char *nvme_trace_zone_mgmt_send(struct trace_seq *p, u8 *cdw10) 152 { 153 const char *ret = trace_seq_buffer_ptr(p); 154 u64 slba = get_unaligned_le64(cdw10); 155 u8 zsa = cdw10[12]; 156 u8 all = cdw10[13]; 157 158 trace_seq_printf(p, "slba=%llu, zsa=%u, all=%u", slba, zsa, all); 159 trace_seq_putc(p, 0); 160 161 return ret; 162 } 163 164 static const char *nvme_trace_zone_mgmt_recv(struct trace_seq *p, u8 *cdw10) 165 { 166 const char *ret = trace_seq_buffer_ptr(p); 167 u64 slba = get_unaligned_le64(cdw10); 168 u32 numd = get_unaligned_le32(cdw10 + 8); 169 u8 zra = cdw10[12]; 170 u8 zrasf = cdw10[13]; 171 u8 pr = cdw10[14]; 172 173 trace_seq_printf(p, "slba=%llu, numd=%u, zra=%u, zrasf=%u, pr=%u", 174 slba, numd, zra, zrasf, pr); 175 trace_seq_putc(p, 0); 176 177 return ret; 178 } 179 180 static const char *nvme_trace_common(struct trace_seq *p, u8 *cdw10) 181 { 182 const char *ret = trace_seq_buffer_ptr(p); 183 184 trace_seq_printf(p, "cdw10=%*ph", 24, cdw10); 185 trace_seq_putc(p, 0); 186 187 return ret; 188 } 189 190 const char *nvme_trace_parse_admin_cmd(struct trace_seq *p, 191 u8 opcode, u8 *cdw10) 192 { 193 switch (opcode) { 194 case nvme_admin_delete_sq: 195 return nvme_trace_delete_sq(p, cdw10); 196 case nvme_admin_create_sq: 197 return nvme_trace_create_sq(p, cdw10); 198 case nvme_admin_delete_cq: 199 return nvme_trace_delete_cq(p, cdw10); 200 case nvme_admin_create_cq: 201 return nvme_trace_create_cq(p, cdw10); 202 case nvme_admin_identify: 203 return nvme_trace_admin_identify(p, cdw10); 204 case nvme_admin_get_features: 205 return nvme_trace_admin_get_features(p, cdw10); 206 case nvme_admin_get_lba_status: 207 return nvme_trace_get_lba_status(p, cdw10); 208 case nvme_admin_format_nvm: 209 return nvme_trace_admin_format_nvm(p, cdw10); 210 default: 211 return nvme_trace_common(p, cdw10); 212 } 213 } 214 215 const char *nvme_trace_parse_nvm_cmd(struct trace_seq *p, 216 u8 opcode, u8 *cdw10) 217 { 218 switch (opcode) { 219 case nvme_cmd_read: 220 case nvme_cmd_write: 221 case nvme_cmd_write_zeroes: 222 case nvme_cmd_zone_append: 223 return nvme_trace_read_write(p, cdw10); 224 case nvme_cmd_dsm: 225 return nvme_trace_dsm(p, cdw10); 226 case nvme_cmd_zone_mgmt_send: 227 return nvme_trace_zone_mgmt_send(p, cdw10); 228 case nvme_cmd_zone_mgmt_recv: 229 return nvme_trace_zone_mgmt_recv(p, cdw10); 230 default: 231 return nvme_trace_common(p, cdw10); 232 } 233 } 234 235 static const char *nvme_trace_fabrics_property_set(struct trace_seq *p, u8 *spc) 236 { 237 const char *ret = trace_seq_buffer_ptr(p); 238 u8 attrib = spc[0]; 239 u32 ofst = get_unaligned_le32(spc + 4); 240 u64 value = get_unaligned_le64(spc + 8); 241 242 trace_seq_printf(p, "attrib=%u, ofst=0x%x, value=0x%llx", 243 attrib, ofst, value); 244 trace_seq_putc(p, 0); 245 return ret; 246 } 247 248 static const char *nvme_trace_fabrics_connect(struct trace_seq *p, u8 *spc) 249 { 250 const char *ret = trace_seq_buffer_ptr(p); 251 u16 recfmt = get_unaligned_le16(spc); 252 u16 qid = get_unaligned_le16(spc + 2); 253 u16 sqsize = get_unaligned_le16(spc + 4); 254 u8 cattr = spc[6]; 255 u32 kato = get_unaligned_le32(spc + 8); 256 257 trace_seq_printf(p, "recfmt=%u, qid=%u, sqsize=%u, cattr=%u, kato=%u", 258 recfmt, qid, sqsize, cattr, kato); 259 trace_seq_putc(p, 0); 260 return ret; 261 } 262 263 static const char *nvme_trace_fabrics_property_get(struct trace_seq *p, u8 *spc) 264 { 265 const char *ret = trace_seq_buffer_ptr(p); 266 u8 attrib = spc[0]; 267 u32 ofst = get_unaligned_le32(spc + 4); 268 269 trace_seq_printf(p, "attrib=%u, ofst=0x%x", attrib, ofst); 270 trace_seq_putc(p, 0); 271 return ret; 272 } 273 274 static const char *nvme_trace_fabrics_common(struct trace_seq *p, u8 *spc) 275 { 276 const char *ret = trace_seq_buffer_ptr(p); 277 278 trace_seq_printf(p, "specific=%*ph", 24, spc); 279 trace_seq_putc(p, 0); 280 return ret; 281 } 282 283 const char *nvme_trace_parse_fabrics_cmd(struct trace_seq *p, 284 u8 fctype, u8 *spc) 285 { 286 switch (fctype) { 287 case nvme_fabrics_type_property_set: 288 return nvme_trace_fabrics_property_set(p, spc); 289 case nvme_fabrics_type_connect: 290 return nvme_trace_fabrics_connect(p, spc); 291 case nvme_fabrics_type_property_get: 292 return nvme_trace_fabrics_property_get(p, spc); 293 default: 294 return nvme_trace_fabrics_common(p, spc); 295 } 296 } 297 298 const char *nvme_trace_disk_name(struct trace_seq *p, char *name) 299 { 300 const char *ret = trace_seq_buffer_ptr(p); 301 302 if (*name) 303 trace_seq_printf(p, "disk=%s, ", name); 304 trace_seq_putc(p, 0); 305 306 return ret; 307 } 308 309 EXPORT_TRACEPOINT_SYMBOL_GPL(nvme_sq); 310