drivers/nvme/host/trace.c

   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);