drivers/infiniband/hw/hfi1/trace.c

   1 /*
   2  * Copyright(c) 2015 - 2018 Intel Corporation.
   3  *
   4  * This file is provided under a dual BSD/GPLv2 license.  When using or
   5  * redistributing this file, you may do so under either license.
   6  *
   7  * GPL LICENSE SUMMARY
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of version 2 of the GNU General Public License as
  11  * published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * BSD LICENSE
  19  *
  20  * Redistribution and use in source and binary forms, with or without
  21  * modification, are permitted provided that the following conditions
  22  * are met:
  23  *
  24  *  - Redistributions of source code must retain the above copyright
  25  *    notice, this list of conditions and the following disclaimer.
  26  *  - Redistributions in binary form must reproduce the above copyright
  27  *    notice, this list of conditions and the following disclaimer in
  28  *    the documentation and/or other materials provided with the
  29  *    distribution.
  30  *  - Neither the name of Intel Corporation nor the names of its
  31  *    contributors may be used to endorse or promote products derived
  32  *    from this software without specific prior written permission.
  33  *
  34  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  35  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  36  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  37  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  38  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  39  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  40  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  41  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  42  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  43  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  44  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  45  *
  46  */
  47 #define CREATE_TRACE_POINTS
  48 #include "trace.h"
  49
  50 static u8 __get_ib_hdr_len(struct ib_header *hdr)
  51 {
  52         struct ib_other_headers *ohdr;
  53         u8 opcode;
  54
  55         if (ib_get_lnh(hdr) == HFI1_LRH_BTH)
  56                 ohdr = &hdr->u.oth;
  57         else
  58                 ohdr = &hdr->u.l.oth;
  59         opcode = ib_bth_get_opcode(ohdr);
  60         return hdr_len_by_opcode[opcode] == 0 ?
  61                0 : hdr_len_by_opcode[opcode] - (12 + 8);
  62 }
  63
  64 static u8 __get_16b_hdr_len(struct hfi1_16b_header *hdr)
  65 {
  66         struct ib_other_headers *ohdr = NULL;
  67         u8 opcode;
  68         u8 l4 = hfi1_16B_get_l4(hdr);
  69
  70         if (l4 == OPA_16B_L4_FM) {
  71                 opcode = IB_OPCODE_UD_SEND_ONLY;
  72                 return (8 + 8); /* No BTH */
  73         }
  74
  75         if (l4 == OPA_16B_L4_IB_LOCAL)
  76                 ohdr = &hdr->u.oth;
  77         else
  78                 ohdr = &hdr->u.l.oth;
  79
  80         opcode = ib_bth_get_opcode(ohdr);
  81         return hdr_len_by_opcode[opcode] == 0 ?
  82                0 : hdr_len_by_opcode[opcode] - (12 + 8 + 8);
  83 }
  84
  85 u8 hfi1_trace_packet_hdr_len(struct hfi1_packet *packet)
  86 {
  87         if (packet->etype != RHF_RCV_TYPE_BYPASS)
  88                 return __get_ib_hdr_len(packet->hdr);
  89         else
  90                 return __get_16b_hdr_len(packet->hdr);
  91 }
  92
  93 u8 hfi1_trace_opa_hdr_len(struct hfi1_opa_header *opa_hdr)
  94 {
  95         if (!opa_hdr->hdr_type)
  96                 return __get_ib_hdr_len(&opa_hdr->ibh);
  97         else
  98                 return __get_16b_hdr_len(&opa_hdr->opah);
  99 }
 100
 101 const char *hfi1_trace_get_packet_l4_str(u8 l4)
 102 {
 103         if (l4)
 104                 return "16B";
 105         else
 106                 return "9B";
 107 }
 108
 109 const char *hfi1_trace_get_packet_l2_str(u8 l2)
 110 {
 111         switch (l2) {
 112         case 0:
 113                 return "0";
 114         case 1:
 115                 return "1";
 116         case 2:
 117                 return "16B";
 118         case 3:
 119                 return "9B";
 120         }
 121         return "";
 122 }
 123
 124 #define IMM_PRN  "imm:%d"
 125 #define RETH_PRN "reth vaddr:0x%.16llx rkey:0x%.8x dlen:0x%.8x"
 126 #define AETH_PRN "aeth syn:0x%.2x %s msn:0x%.8x"
 127 #define DETH_PRN "deth qkey:0x%.8x sqpn:0x%.6x"
 128 #define IETH_PRN "ieth rkey:0x%.8x"
 129 #define ATOMICACKETH_PRN "origdata:%llx"
 130 #define ATOMICETH_PRN "vaddr:0x%llx rkey:0x%.8x sdata:%llx cdata:%llx"
 131
 132 #define OP(transport, op) IB_OPCODE_## transport ## _ ## op
 133
 134 static const char *parse_syndrome(u8 syndrome)
 135 {
 136         switch (syndrome >> 5) {
 137         case 0:
 138                 return "ACK";
 139         case 1:
 140                 return "RNRNAK";
 141         case 3:
 142                 return "NAK";
 143         }
 144         return "";
 145 }
 146
 147 void hfi1_trace_parse_9b_bth(struct ib_other_headers *ohdr,
 148                              u8 *ack, bool *becn, bool *fecn, u8 *mig,
 149                              u8 *se, u8 *pad, u8 *opcode, u8 *tver,
 150                              u16 *pkey, u32 *psn, u32 *qpn)
 151 {
 152         *ack = ib_bth_get_ackreq(ohdr);
 153         *becn = ib_bth_get_becn(ohdr);
 154         *fecn = ib_bth_get_fecn(ohdr);
 155         *mig = ib_bth_get_migreq(ohdr);
 156         *se = ib_bth_get_se(ohdr);
 157         *pad = ib_bth_get_pad(ohdr);
 158         *opcode = ib_bth_get_opcode(ohdr);
 159         *tver = ib_bth_get_tver(ohdr);
 160         *pkey = ib_bth_get_pkey(ohdr);
 161         *psn = mask_psn(ib_bth_get_psn(ohdr));
 162         *qpn = ib_bth_get_qpn(ohdr);
 163 }
 164
 165 void hfi1_trace_parse_16b_bth(struct ib_other_headers *ohdr,
 166                               u8 *ack, u8 *mig, u8 *opcode,
 167                               u8 *pad, u8 *se, u8 *tver,
 168                               u32 *psn, u32 *qpn)
 169 {
 170         *ack = ib_bth_get_ackreq(ohdr);
 171         *mig = ib_bth_get_migreq(ohdr);
 172         *opcode = ib_bth_get_opcode(ohdr);
 173         *pad = ib_bth_get_pad(ohdr);
 174         *se = ib_bth_get_se(ohdr);
 175         *tver = ib_bth_get_tver(ohdr);
 176         *psn = mask_psn(ib_bth_get_psn(ohdr));
 177         *qpn = ib_bth_get_qpn(ohdr);
 178 }
 179
 180 void hfi1_trace_parse_9b_hdr(struct ib_header *hdr, bool sc5,
 181                              u8 *lnh, u8 *lver, u8 *sl, u8 *sc,
 182                              u16 *len, u32 *dlid, u32 *slid)
 183 {
 184         *lnh = ib_get_lnh(hdr);
 185         *lver = ib_get_lver(hdr);
 186         *sl = ib_get_sl(hdr);
 187         *sc = ib_get_sc(hdr) | (sc5 << 4);
 188         *len = ib_get_len(hdr);
 189         *dlid = ib_get_dlid(hdr);
 190         *slid = ib_get_slid(hdr);
 191 }
 192
 193 void hfi1_trace_parse_16b_hdr(struct hfi1_16b_header *hdr,
 194                               u8 *age, bool *becn, bool *fecn,
 195                               u8 *l4, u8 *rc, u8 *sc,
 196                               u16 *entropy, u16 *len, u16 *pkey,
 197                               u32 *dlid, u32 *slid)
 198 {
 199         *age = hfi1_16B_get_age(hdr);
 200         *becn = hfi1_16B_get_becn(hdr);
 201         *fecn = hfi1_16B_get_fecn(hdr);
 202         *l4 = hfi1_16B_get_l4(hdr);
 203         *rc = hfi1_16B_get_rc(hdr);
 204         *sc = hfi1_16B_get_sc(hdr);
 205         *entropy = hfi1_16B_get_entropy(hdr);
 206         *len = hfi1_16B_get_len(hdr);
 207         *pkey = hfi1_16B_get_pkey(hdr);
 208         *dlid = hfi1_16B_get_dlid(hdr);
 209         *slid = hfi1_16B_get_slid(hdr);
 210 }
 211
 212 #define LRH_PRN "len:%d sc:%d dlid:0x%.4x slid:0x%.4x "
 213 #define LRH_9B_PRN "lnh:%d,%s lver:%d sl:%d"
 214 #define LRH_16B_PRN "age:%d becn:%d fecn:%d l4:%d " \
 215                     "rc:%d sc:%d pkey:0x%.4x entropy:0x%.4x"
 216 const char *hfi1_trace_fmt_lrh(struct trace_seq *p, bool bypass,
 217                                u8 age, bool becn, bool fecn, u8 l4,
 218                                u8 lnh, const char *lnh_name, u8 lver,
 219                                u8 rc, u8 sc, u8 sl, u16 entropy,
 220                                u16 len, u16 pkey, u32 dlid, u32 slid)
 221 {
 222         const char *ret = trace_seq_buffer_ptr(p);
 223
 224         trace_seq_printf(p, LRH_PRN, len, sc, dlid, slid);
 225
 226         if (bypass)
 227                 trace_seq_printf(p, LRH_16B_PRN,
 228                                  age, becn, fecn, l4, rc, sc, pkey, entropy);
 229
 230         else
 231                 trace_seq_printf(p, LRH_9B_PRN,
 232                                  lnh, lnh_name, lver, sl);
 233         trace_seq_putc(p, 0);
 234
 235         return ret;
 236 }
 237
 238 #define BTH_9B_PRN \
 239         "op:0x%.2x,%s se:%d m:%d pad:%d tver:%d pkey:0x%.4x " \
 240         "f:%d b:%d qpn:0x%.6x a:%d psn:0x%.8x"
 241 #define BTH_16B_PRN \
 242         "op:0x%.2x,%s se:%d m:%d pad:%d tver:%d " \
 243         "qpn:0x%.6x a:%d psn:0x%.8x"
 244 #define L4_FM_16B_PRN \
 245         "op:0x%.2x,%s dest_qpn:0x%.6x src_qpn:0x%.6x"
 246 const char *hfi1_trace_fmt_rest(struct trace_seq *p, bool bypass, u8 l4,
 247                                 u8 ack, bool becn, bool fecn, u8 mig,
 248                                 u8 se, u8 pad, u8 opcode, const char *opname,
 249                                 u8 tver, u16 pkey, u32 psn, u32 qpn,
 250                                 u32 dest_qpn, u32 src_qpn)
 251 {
 252         const char *ret = trace_seq_buffer_ptr(p);
 253
 254         if (bypass)
 255                 if (l4 == OPA_16B_L4_FM)
 256                         trace_seq_printf(p, L4_FM_16B_PRN,
 257                                          opcode, opname, dest_qpn, src_qpn);
 258                 else
 259                         trace_seq_printf(p, BTH_16B_PRN,
 260                                          opcode, opname,
 261                                          se, mig, pad, tver, qpn, ack, psn);
 262
 263         else
 264                 trace_seq_printf(p, BTH_9B_PRN,
 265                                  opcode, opname,
 266                                  se, mig, pad, tver, pkey, fecn, becn,
 267                                  qpn, ack, psn);
 268         trace_seq_putc(p, 0);
 269
 270         return ret;
 271 }
 272
 273 const char *parse_everbs_hdrs(
 274         struct trace_seq *p,
 275         u8 opcode, u8 l4, u32 dest_qpn, u32 src_qpn,
 276         void *ehdrs)
 277 {
 278         union ib_ehdrs *eh = ehdrs;
 279         const char *ret = trace_seq_buffer_ptr(p);
 280
 281         if (l4 == OPA_16B_L4_FM) {
 282                 trace_seq_printf(p, "mgmt pkt");
 283                 goto out;
 284         }
 285
 286         switch (opcode) {
 287         /* imm */
 288         case OP(RC, SEND_LAST_WITH_IMMEDIATE):
 289         case OP(UC, SEND_LAST_WITH_IMMEDIATE):
 290         case OP(RC, SEND_ONLY_WITH_IMMEDIATE):
 291         case OP(UC, SEND_ONLY_WITH_IMMEDIATE):
 292         case OP(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 293         case OP(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 294                 trace_seq_printf(p, IMM_PRN,
 295                                  be32_to_cpu(eh->imm_data));
 296                 break;
 297         /* reth + imm */
 298         case OP(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 299         case OP(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 300                 trace_seq_printf(p, RETH_PRN " " IMM_PRN,
 301                                  get_ib_reth_vaddr(&eh->rc.reth),
 302                                  be32_to_cpu(eh->rc.reth.rkey),
 303                                  be32_to_cpu(eh->rc.reth.length),
 304                                  be32_to_cpu(eh->rc.imm_data));
 305                 break;
 306         /* reth */
 307         case OP(RC, RDMA_READ_REQUEST):
 308         case OP(RC, RDMA_WRITE_FIRST):
 309         case OP(UC, RDMA_WRITE_FIRST):
 310         case OP(RC, RDMA_WRITE_ONLY):
 311         case OP(UC, RDMA_WRITE_ONLY):
 312                 trace_seq_printf(p, RETH_PRN,
 313                                  get_ib_reth_vaddr(&eh->rc.reth),
 314                                  be32_to_cpu(eh->rc.reth.rkey),
 315                                  be32_to_cpu(eh->rc.reth.length));
 316                 break;
 317         case OP(RC, RDMA_READ_RESPONSE_FIRST):
 318         case OP(RC, RDMA_READ_RESPONSE_LAST):
 319         case OP(RC, RDMA_READ_RESPONSE_ONLY):
 320         case OP(RC, ACKNOWLEDGE):
 321                 trace_seq_printf(p, AETH_PRN, be32_to_cpu(eh->aeth) >> 24,
 322                                  parse_syndrome(be32_to_cpu(eh->aeth) >> 24),
 323                                  be32_to_cpu(eh->aeth) & IB_MSN_MASK);
 324                 break;
 325         /* aeth + atomicacketh */
 326         case OP(RC, ATOMIC_ACKNOWLEDGE):
 327                 trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN,
 328                                  be32_to_cpu(eh->at.aeth) >> 24,
 329                                  parse_syndrome(be32_to_cpu(eh->at.aeth) >> 24),
 330                                  be32_to_cpu(eh->at.aeth) & IB_MSN_MASK,
 331                                  ib_u64_get(&eh->at.atomic_ack_eth));
 332                 break;
 333         /* atomiceth */
 334         case OP(RC, COMPARE_SWAP):
 335         case OP(RC, FETCH_ADD):
 336                 trace_seq_printf(p, ATOMICETH_PRN,
 337                                  get_ib_ateth_vaddr(&eh->atomic_eth),
 338                                  eh->atomic_eth.rkey,
 339                                  get_ib_ateth_swap(&eh->atomic_eth),
 340                                  get_ib_ateth_compare(&eh->atomic_eth));
 341                 break;
 342         /* deth */
 343         case OP(UD, SEND_ONLY):
 344         case OP(UD, SEND_ONLY_WITH_IMMEDIATE):
 345                 trace_seq_printf(p, DETH_PRN,
 346                                  be32_to_cpu(eh->ud.deth[0]),
 347                                  be32_to_cpu(eh->ud.deth[1]) & RVT_QPN_MASK);
 348                 break;
 349         /* ieth */
 350         case OP(RC, SEND_LAST_WITH_INVALIDATE):
 351         case OP(RC, SEND_ONLY_WITH_INVALIDATE):
 352                 trace_seq_printf(p, IETH_PRN,
 353                                  be32_to_cpu(eh->ieth));
 354                 break;
 355         }
 356 out:
 357         trace_seq_putc(p, 0);
 358         return ret;
 359 }
 360
 361 const char *parse_sdma_flags(
 362         struct trace_seq *p,
 363         u64 desc0, u64 desc1)
 364 {
 365         const char *ret = trace_seq_buffer_ptr(p);
 366         char flags[5] = { 'x', 'x', 'x', 'x', 0 };
 367
 368         flags[0] = (desc1 & SDMA_DESC1_INT_REQ_FLAG) ? 'I' : '-';
 369         flags[1] = (desc1 & SDMA_DESC1_HEAD_TO_HOST_FLAG) ?  'H' : '-';
 370         flags[2] = (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) ? 'F' : '-';
 371         flags[3] = (desc0 & SDMA_DESC0_LAST_DESC_FLAG) ? 'L' : '-';
 372         trace_seq_printf(p, "%s", flags);
 373         if (desc0 & SDMA_DESC0_FIRST_DESC_FLAG)
 374                 trace_seq_printf(p, " amode:%u aidx:%u alen:%u",
 375                                  (u8)((desc1 >> SDMA_DESC1_HEADER_MODE_SHIFT) &
 376                                       SDMA_DESC1_HEADER_MODE_MASK),
 377                                  (u8)((desc1 >> SDMA_DESC1_HEADER_INDEX_SHIFT) &
 378                                       SDMA_DESC1_HEADER_INDEX_MASK),
 379                                  (u8)((desc1 >> SDMA_DESC1_HEADER_DWS_SHIFT) &
 380                                       SDMA_DESC1_HEADER_DWS_MASK));
 381         return ret;
 382 }
 383
 384 const char *print_u32_array(
 385         struct trace_seq *p,
 386         u32 *arr, int len)
 387 {
 388         int i;
 389         const char *ret = trace_seq_buffer_ptr(p);
 390
 391         for (i = 0; i < len ; i++)
 392                 trace_seq_printf(p, "%s%#x", i == 0 ? "" : " ", arr[i]);
 393         trace_seq_putc(p, 0);
 394         return ret;
 395 }
 396
 397 __hfi1_trace_fn(AFFINITY);
 398 __hfi1_trace_fn(PKT);
 399 __hfi1_trace_fn(PROC);
 400 __hfi1_trace_fn(SDMA);
 401 __hfi1_trace_fn(LINKVERB);
 402 __hfi1_trace_fn(DEBUG);
 403 __hfi1_trace_fn(SNOOP);
 404 __hfi1_trace_fn(CNTR);
 405 __hfi1_trace_fn(PIO);
 406 __hfi1_trace_fn(DC8051);
 407 __hfi1_trace_fn(FIRMWARE);
 408 __hfi1_trace_fn(RCVCTRL);
 409 __hfi1_trace_fn(TID);
 410 __hfi1_trace_fn(MMU);
 411 __hfi1_trace_fn(IOCTL);