1// SPDX-License-Identifier: GPL-2.0 2/* 3 * NVM Express target device driver tracepoints 4 * Copyright (c) 2018 Johannes Thumshirn, SUSE Linux GmbH 5 */ 6 7#include <asm/unaligned.h> 8#include "trace.h" 9 10static const char *nvmet_trace_admin_identify(struct trace_seq *p, u8 *cdw10) 11{ 12 const char *ret = trace_seq_buffer_ptr(p); 13 u8 cns = cdw10[0]; 14 u16 ctrlid = get_unaligned_le16(cdw10 + 2); 15 16 trace_seq_printf(p, "cns=%u, ctrlid=%u", cns, ctrlid); 17 trace_seq_putc(p, 0); 18 19 return ret; 20} 21 22static const char *nvmet_trace_admin_get_features(struct trace_seq *p, 23 u8 *cdw10) 24{ 25 const char *ret = trace_seq_buffer_ptr(p); 26 u8 fid = cdw10[0]; 27 u8 sel = cdw10[1] & 0x7; 28 u32 cdw11 = get_unaligned_le32(cdw10 + 4); 29 30 trace_seq_printf(p, "fid=0x%x, sel=0x%x, cdw11=0x%x", fid, sel, cdw11); 31 trace_seq_putc(p, 0); 32 33 return ret; 34} 35 36static const char *nvmet_trace_get_lba_status(struct trace_seq *p, 37 u8 *cdw10) 38{ 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); 43 u8 atype = cdw10[15]; 44 45 trace_seq_printf(p, "slba=0x%llx, mndw=0x%x, rl=0x%x, atype=%u", 46 slba, mndw, rl, atype); 47 trace_seq_putc(p, 0); 48 49 return ret; 50} 51 52static const char *nvmet_trace_admin_set_features(struct trace_seq *p, 53 u8 *cdw10) 54{ 55 const char *ret = trace_seq_buffer_ptr(p); 56 u8 fid = cdw10[0]; 57 u8 sv = cdw10[3] & 0x8; 58 u32 cdw11 = get_unaligned_le32(cdw10 + 4); 59 60 trace_seq_printf(p, "fid=0x%x, sv=0x%x, cdw11=0x%x", fid, sv, cdw11); 61 trace_seq_putc(p, 0); 62 63 return ret; 64} 65 66static const char *nvmet_trace_read_write(struct trace_seq *p, u8 *cdw10) 67{ 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); 74 75 trace_seq_printf(p, 76 "slba=%llu, len=%u, ctrl=0x%x, dsmgmt=%u, reftag=%u", 77 slba, length, control, dsmgmt, reftag); 78 trace_seq_putc(p, 0); 79 80 return ret; 81} 82 83static const char *nvmet_trace_dsm(struct trace_seq *p, u8 *cdw10) 84{ 85 const char *ret = trace_seq_buffer_ptr(p); 86 87 trace_seq_printf(p, "nr=%u, attributes=%u", 88 get_unaligned_le32(cdw10), 89 get_unaligned_le32(cdw10 + 4)); 90 trace_seq_putc(p, 0); 91 92 return ret; 93} 94 95static const char *nvmet_trace_common(struct trace_seq *p, u8 *cdw10) 96{ 97 const char *ret = trace_seq_buffer_ptr(p); 98 99 trace_seq_printf(p, "cdw10=%*ph", 24, cdw10); 100 trace_seq_putc(p, 0); 101 102 return ret; 103} 104 105const char *nvmet_trace_parse_admin_cmd(struct trace_seq *p, 106 u8 opcode, u8 *cdw10) 107{ 108 switch (opcode) { 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); 117 default: 118 return nvmet_trace_common(p, cdw10); 119 } 120} 121 122static const char *nvmet_trace_zone_mgmt_send(struct trace_seq *p, u8 *cdw10) 123{ 124 static const char * const zsa_strs[] = { 125 [0x01] = "close zone", 126 [0x02] = "finish zone", 127 [0x03] = "open zone", 128 [0x04] = "reset zone", 129 [0x05] = "offline zone", 130 [0x10] = "set zone descriptor extension" 131 }; 132 const char *ret = trace_seq_buffer_ptr(p); 133 u64 slba = get_unaligned_le64(cdw10); 134 const char *zsa_str; 135 u8 zsa = cdw10[12]; 136 u8 all = cdw10[13]; 137 138 if (zsa < ARRAY_SIZE(zsa_strs) && zsa_strs[zsa]) 139 zsa_str = zsa_strs[zsa]; 140 else 141 zsa_str = "reserved"; 142 143 trace_seq_printf(p, "slba=%llu, zsa=%u:%s, all=%u", 144 slba, zsa, zsa_str, all); 145 trace_seq_putc(p, 0); 146 147 return ret; 148} 149 150static const char *nvmet_trace_zone_mgmt_recv(struct trace_seq *p, u8 *cdw10) 151{ 152 static const char * const zrasf_strs[] = { 153 [0x00] = "list all zones", 154 [0x01] = "list the zones in the ZSE: Empty state", 155 [0x02] = "list the zones in the ZSIO: Implicitly Opened state", 156 [0x03] = "list the zones in the ZSEO: Explicitly Opened state", 157 [0x04] = "list the zones in the ZSC: Closed state", 158 [0x05] = "list the zones in the ZSF: Full state", 159 [0x06] = "list the zones in the ZSRO: Read Only state", 160 [0x07] = "list the zones in the ZSO: Offline state", 161 [0x09] = "list the zones that have the zone attribute" 162 }; 163 const char *ret = trace_seq_buffer_ptr(p); 164 u64 slba = get_unaligned_le64(cdw10); 165 u32 numd = get_unaligned_le32(&cdw10[8]); 166 u8 zra = cdw10[12]; 167 u8 zrasf = cdw10[13]; 168 const char *zrasf_str; 169 u8 pr = cdw10[14]; 170 171 if (zrasf < ARRAY_SIZE(zrasf_strs) && zrasf_strs[zrasf]) 172 zrasf_str = zrasf_strs[zrasf]; 173 else 174 zrasf_str = "reserved"; 175 176 trace_seq_printf(p, "slba=%llu, numd=%u, zra=%u, zrasf=%u:%s, pr=%u", 177 slba, numd, zra, zrasf, zrasf_str, pr); 178 trace_seq_putc(p, 0); 179 180 return ret; 181} 182 183const char *nvmet_trace_parse_nvm_cmd(struct trace_seq *p, 184 u8 opcode, u8 *cdw10) 185{ 186 switch (opcode) { 187 case nvme_cmd_read: 188 case nvme_cmd_write: 189 case nvme_cmd_write_zeroes: 190 case nvme_cmd_zone_append: 191 return nvmet_trace_read_write(p, cdw10); 192 case nvme_cmd_dsm: 193 return nvmet_trace_dsm(p, cdw10); 194 case nvme_cmd_zone_mgmt_send: 195 return nvmet_trace_zone_mgmt_send(p, cdw10); 196 case nvme_cmd_zone_mgmt_recv: 197 return nvmet_trace_zone_mgmt_recv(p, cdw10); 198 default: 199 return nvmet_trace_common(p, cdw10); 200 } 201} 202 203static const char *nvmet_trace_fabrics_property_set(struct trace_seq *p, 204 u8 *spc) 205{ 206 const char *ret = trace_seq_buffer_ptr(p); 207 u8 attrib = spc[0]; 208 u32 ofst = get_unaligned_le32(spc + 4); 209 u64 value = get_unaligned_le64(spc + 8); 210 211 trace_seq_printf(p, "attrib=%u, ofst=0x%x, value=0x%llx", 212 attrib, ofst, value); 213 trace_seq_putc(p, 0); 214 return ret; 215} 216 217static const char *nvmet_trace_fabrics_connect(struct trace_seq *p, 218 u8 *spc) 219{ 220 const char *ret = trace_seq_buffer_ptr(p); 221 u16 recfmt = get_unaligned_le16(spc); 222 u16 qid = get_unaligned_le16(spc + 2); 223 u16 sqsize = get_unaligned_le16(spc + 4); 224 u8 cattr = spc[6]; 225 u32 kato = get_unaligned_le32(spc + 8); 226 227 trace_seq_printf(p, "recfmt=%u, qid=%u, sqsize=%u, cattr=%u, kato=%u", 228 recfmt, qid, sqsize, cattr, kato); 229 trace_seq_putc(p, 0); 230 return ret; 231} 232 233static const char *nvmet_trace_fabrics_property_get(struct trace_seq *p, 234 u8 *spc) 235{ 236 const char *ret = trace_seq_buffer_ptr(p); 237 u8 attrib = spc[0]; 238 u32 ofst = get_unaligned_le32(spc + 4); 239 240 trace_seq_printf(p, "attrib=%u, ofst=0x%x", attrib, ofst); 241 trace_seq_putc(p, 0); 242 return ret; 243} 244 245static const char *nvmet_trace_fabrics_auth_send(struct trace_seq *p, u8 *spc) 246{ 247 const char *ret = trace_seq_buffer_ptr(p); 248 u8 spsp0 = spc[1]; 249 u8 spsp1 = spc[2]; 250 u8 secp = spc[3]; 251 u32 tl = get_unaligned_le32(spc + 4); 252 253 trace_seq_printf(p, "spsp0=%02x, spsp1=%02x, secp=%02x, tl=%u", 254 spsp0, spsp1, secp, tl); 255 trace_seq_putc(p, 0); 256 return ret; 257} 258 259static const char *nvmet_trace_fabrics_auth_receive(struct trace_seq *p, u8 *spc) 260{ 261 const char *ret = trace_seq_buffer_ptr(p); 262 u8 spsp0 = spc[1]; 263 u8 spsp1 = spc[2]; 264 u8 secp = spc[3]; 265 u32 al = get_unaligned_le32(spc + 4); 266 267 trace_seq_printf(p, "spsp0=%02x, spsp1=%02x, secp=%02x, al=%u", 268 spsp0, spsp1, secp, al); 269 trace_seq_putc(p, 0); 270 return ret; 271} 272 273static const char *nvmet_trace_fabrics_common(struct trace_seq *p, u8 *spc) 274{ 275 const char *ret = trace_seq_buffer_ptr(p); 276 277 trace_seq_printf(p, "specific=%*ph", 24, spc); 278 trace_seq_putc(p, 0); 279 return ret; 280} 281 282const char *nvmet_trace_parse_fabrics_cmd(struct trace_seq *p, 283 u8 fctype, u8 *spc) 284{ 285 switch (fctype) { 286 case nvme_fabrics_type_property_set: 287 return nvmet_trace_fabrics_property_set(p, spc); 288 case nvme_fabrics_type_connect: 289 return nvmet_trace_fabrics_connect(p, spc); 290 case nvme_fabrics_type_property_get: 291 return nvmet_trace_fabrics_property_get(p, spc); 292 case nvme_fabrics_type_auth_send: 293 return nvmet_trace_fabrics_auth_send(p, spc); 294 case nvme_fabrics_type_auth_receive: 295 return nvmet_trace_fabrics_auth_receive(p, spc); 296 default: 297 return nvmet_trace_fabrics_common(p, spc); 298 } 299} 300 301const char *nvmet_trace_disk_name(struct trace_seq *p, char *name) 302{ 303 const char *ret = trace_seq_buffer_ptr(p); 304 305 if (*name) 306 trace_seq_printf(p, "disk=%s, ", name); 307 trace_seq_putc(p, 0); 308 309 return ret; 310} 311 312const char *nvmet_trace_ctrl_id(struct trace_seq *p, u16 ctrl_id) 313{ 314 const char *ret = trace_seq_buffer_ptr(p); 315 316 /* 317 * XXX: We don't know the controller instance before executing the 318 * connect command itself because the connect command for the admin 319 * queue will not provide the cntlid which will be allocated in this 320 * command. In case of io queues, the controller instance will be 321 * mapped by the extra data of the connect command. 322 * If we can know the extra data of the connect command in this stage, 323 * we can update this print statement later. 324 */ 325 if (ctrl_id) 326 trace_seq_printf(p, "%d", ctrl_id); 327 else 328 trace_seq_printf(p, "_"); 329 trace_seq_putc(p, 0); 330 331 return ret; 332} 333 334