drivers/infiniband/hw/hfi1/trace.c

   1 /*
   2  * Copyright(c) 2015, 2016 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;
  67         u8 opcode;
  68
  69         if (hfi1_16B_get_l4(hdr) == OPA_16B_L4_IB_LOCAL)
  70                 ohdr = &hdr->u.oth;
  71         else
  72                 ohdr = &hdr->u.l.oth;
  73         opcode = ib_bth_get_opcode(ohdr);
  74         return hdr_len_by_opcode[opcode] == 0 ?
  75                0 : hdr_len_by_opcode[opcode] - (12 + 8 + 8);
  76 }
  77
  78 u8 hfi1_trace_packet_hdr_len(struct hfi1_packet *packet)
  79 {
  80         if (packet->etype != RHF_RCV_TYPE_BYPASS)
  81                 return __get_ib_hdr_len(packet->hdr);
  82         else
  83                 return __get_16b_hdr_len(packet->hdr);
  84 }
  85
  86 u8 hfi1_trace_opa_hdr_len(struct hfi1_opa_header *opa_hdr)
  87 {
  88         if (!opa_hdr->hdr_type)
  89                 return __get_ib_hdr_len(&opa_hdr->ibh);
  90         else
  91                 return __get_16b_hdr_len(&opa_hdr->opah);
  92 }
  93
  94 const char *hfi1_trace_get_packet_str(struct hfi1_packet *packet)
  95 {
  96         if (packet->etype != RHF_RCV_TYPE_BYPASS)
  97                 return "IB";
  98
  99         switch (hfi1_16B_get_l2(packet->hdr)) {
 100         case 0:
 101                 return "0";
 102         case 1:
 103                 return "1";
 104         case 2:
 105                 return "16B";
 106         case 3:
 107                 return "9B";
 108         }
 109         return "";
 110 }
 111
 112 const char *hfi1_trace_get_packet_type_str(u8 l4)
 113 {
 114         if (l4)
 115                 return "16B";
 116         else
 117                 return "9B";
 118 }
 119
 120 #define IMM_PRN  "imm:%d"
 121 #define RETH_PRN "reth vaddr:0x%.16llx rkey:0x%.8x dlen:0x%.8x"
 122 #define AETH_PRN "aeth syn:0x%.2x %s msn:0x%.8x"
 123 #define DETH_PRN "deth qkey:0x%.8x sqpn:0x%.6x"
 124 #define IETH_PRN "ieth rkey:0x%.8x"
 125 #define ATOMICACKETH_PRN "origdata:%llx"
 126 #define ATOMICETH_PRN "vaddr:0x%llx rkey:0x%.8x sdata:%llx cdata:%llx"
 127
 128 #define OP(transport, op) IB_OPCODE_## transport ## _ ## op
 129
 130 static const char *parse_syndrome(u8 syndrome)
 131 {
 132         switch (syndrome >> 5) {
 133         case 0:
 134                 return "ACK";
 135         case 1:
 136                 return "RNRNAK";
 137         case 3:
 138                 return "NAK";
 139         }
 140         return "";
 141 }
 142
 143 void hfi1_trace_parse_9b_bth(struct ib_other_headers *ohdr,
 144                              u8 *ack, u8 *becn, u8 *fecn, u8 *mig,
 145                              u8 *se, u8 *pad, u8 *opcode, u8 *tver,
 146                              u16 *pkey, u32 *psn, u32 *qpn)
 147 {
 148         *ack = ib_bth_get_ackreq(ohdr);
 149         *becn = ib_bth_get_becn(ohdr);
 150         *fecn = ib_bth_get_fecn(ohdr);
 151         *mig = ib_bth_get_migreq(ohdr);
 152         *se = ib_bth_get_se(ohdr);
 153         *pad = ib_bth_get_pad(ohdr);
 154         *opcode = ib_bth_get_opcode(ohdr);
 155         *tver = ib_bth_get_tver(ohdr);
 156         *pkey = ib_bth_get_pkey(ohdr);
 157         *psn = mask_psn(ib_bth_get_psn(ohdr));
 158         *qpn = ib_bth_get_qpn(ohdr);
 159 }
 160
 161 void hfi1_trace_parse_16b_bth(struct ib_other_headers *ohdr,
 162                               u8 *ack, u8 *mig, u8 *opcode,
 163                               u8 *pad, u8 *se, u8 *tver,
 164                               u32 *psn, u32 *qpn)
 165 {
 166         *ack = ib_bth_get_ackreq(ohdr);
 167         *mig = ib_bth_get_migreq(ohdr);
 168         *opcode = ib_bth_get_opcode(ohdr);
 169         *pad = ib_bth_get_pad(ohdr);
 170         *se = ib_bth_get_se(ohdr);
 171         *tver = ib_bth_get_tver(ohdr);
 172         *psn = mask_psn(ib_bth_get_psn(ohdr));
 173         *qpn = ib_bth_get_qpn(ohdr);
 174 }
 175
 176 void hfi1_trace_parse_9b_hdr(struct ib_header *hdr, bool sc5,
 177                              u8 *lnh, u8 *lver, u8 *sl, u8 *sc,
 178                              u16 *len, u32 *dlid, u32 *slid)
 179 {
 180         *lnh = ib_get_lnh(hdr);
 181         *lver = ib_get_lver(hdr);
 182         *sl = ib_get_sl(hdr);
 183         *sc = ib_get_sc(hdr) | (sc5 << 4);
 184         *len = ib_get_len(hdr);
 185         *dlid = ib_get_dlid(hdr);
 186         *slid = ib_get_slid(hdr);
 187 }
 188
 189 void hfi1_trace_parse_16b_hdr(struct hfi1_16b_header *hdr,
 190                               u8 *age, u8 *becn, u8 *fecn,
 191                               u8 *l4, u8 *rc, u8 *sc,
 192                               u16 *entropy, u16 *len, u16 *pkey,
 193                               u32 *dlid, u32 *slid)
 194 {
 195         *age = hfi1_16B_get_age(hdr);
 196         *becn = hfi1_16B_get_becn(hdr);
 197         *fecn = hfi1_16B_get_fecn(hdr);
 198         *l4 = hfi1_16B_get_l4(hdr);
 199         *rc = hfi1_16B_get_rc(hdr);
 200         *sc = hfi1_16B_get_sc(hdr);
 201         *entropy = hfi1_16B_get_entropy(hdr);
 202         *len = hfi1_16B_get_len(hdr);
 203         *pkey = hfi1_16B_get_pkey(hdr);
 204         *dlid = hfi1_16B_get_dlid(hdr);
 205         *slid = hfi1_16B_get_slid(hdr);
 206 }
 207
 208 #define LRH_PRN "len:%d sc:%d dlid:0x%.4x slid:0x%.4x "
 209 #define LRH_9B_PRN "lnh:%d,%s lver:%d sl:%d"
 210 #define LRH_16B_PRN "age:%d becn:%d fecn:%d l4:%d " \
 211                     "rc:%d sc:%d pkey:0x%.4x entropy:0x%.4x"
 212 const char *hfi1_trace_fmt_lrh(struct trace_seq *p, bool bypass,
 213                                u8 age, u8 becn, u8 fecn, u8 l4,
 214                                u8 lnh, const char *lnh_name, u8 lver,
 215                                u8 rc, u8 sc, u8 sl, u16 entropy,
 216                                u16 len, u16 pkey, u32 dlid, u32 slid)
 217 {
 218         const char *ret = trace_seq_buffer_ptr(p);
 219
 220         trace_seq_printf(p, LRH_PRN, len, sc, dlid, slid);
 221
 222         if (bypass)
 223                 trace_seq_printf(p, LRH_16B_PRN,
 224                                  age, becn, fecn, l4, rc, sc, pkey, entropy);
 225
 226         else
 227                 trace_seq_printf(p, LRH_9B_PRN,
 228                                  lnh, lnh_name, lver, sl);
 229         trace_seq_putc(p, 0);
 230
 231         return ret;
 232 }
 233
 234 #define BTH_9B_PRN \
 235         "op:0x%.2x,%s se:%d m:%d pad:%d tver:%d pkey:0x%.4x " \
 236         "f:%d b:%d qpn:0x%.6x a:%d psn:0x%.8x"
 237 #define BTH_16B_PRN \
 238         "op:0x%.2x,%s se:%d m:%d pad:%d tver:%d " \
 239         "qpn:0x%.6x a:%d psn:0x%.8x"
 240 const char *hfi1_trace_fmt_bth(struct trace_seq *p, bool bypass,
 241                                u8 ack, u8 becn, u8 fecn, u8 mig,
 242                                u8 se, u8 pad, u8 opcode, const char *opname,
 243                                u8 tver, u16 pkey, u32 psn, u32 qpn)
 244 {
 245         const char *ret = trace_seq_buffer_ptr(p);
 246
 247         if (bypass)
 248                 trace_seq_printf(p, BTH_16B_PRN,
 249                                  opcode, opname,
 250                                  se, mig, pad, tver, qpn, ack, psn);
 251
 252         else
 253                 trace_seq_printf(p, BTH_9B_PRN,
 254                                  opcode, opname,
 255                                  se, mig, pad, tver, pkey, fecn, becn,
 256                                  qpn, ack, psn);
 257         trace_seq_putc(p, 0);
 258
 259         return ret;
 260 }
 261
 262 const char *parse_everbs_hdrs(
 263         struct trace_seq *p,
 264         u8 opcode,
 265         void *ehdrs)
 266 {
 267         union ib_ehdrs *eh = ehdrs;
 268         const char *ret = trace_seq_buffer_ptr(p);
 269
 270         switch (opcode) {
 271         /* imm */
 272         case OP(RC, SEND_LAST_WITH_IMMEDIATE):
 273         case OP(UC, SEND_LAST_WITH_IMMEDIATE):
 274         case OP(RC, SEND_ONLY_WITH_IMMEDIATE):
 275         case OP(UC, SEND_ONLY_WITH_IMMEDIATE):
 276         case OP(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 277         case OP(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 278                 trace_seq_printf(p, IMM_PRN,
 279                                  be32_to_cpu(eh->imm_data));
 280                 break;
 281         /* reth + imm */
 282         case OP(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 283         case OP(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 284                 trace_seq_printf(p, RETH_PRN " " IMM_PRN,
 285                                  get_ib_reth_vaddr(&eh->rc.reth),
 286                                  be32_to_cpu(eh->rc.reth.rkey),
 287                                  be32_to_cpu(eh->rc.reth.length),
 288                                  be32_to_cpu(eh->rc.imm_data));
 289                 break;
 290         /* reth */
 291         case OP(RC, RDMA_READ_REQUEST):
 292         case OP(RC, RDMA_WRITE_FIRST):
 293         case OP(UC, RDMA_WRITE_FIRST):
 294         case OP(RC, RDMA_WRITE_ONLY):
 295         case OP(UC, RDMA_WRITE_ONLY):
 296                 trace_seq_printf(p, RETH_PRN,
 297                                  get_ib_reth_vaddr(&eh->rc.reth),
 298                                  be32_to_cpu(eh->rc.reth.rkey),
 299                                  be32_to_cpu(eh->rc.reth.length));
 300                 break;
 301         case OP(RC, RDMA_READ_RESPONSE_FIRST):
 302         case OP(RC, RDMA_READ_RESPONSE_LAST):
 303         case OP(RC, RDMA_READ_RESPONSE_ONLY):
 304         case OP(RC, ACKNOWLEDGE):
 305                 trace_seq_printf(p, AETH_PRN, be32_to_cpu(eh->aeth) >> 24,
 306                                  parse_syndrome(be32_to_cpu(eh->aeth) >> 24),
 307                                  be32_to_cpu(eh->aeth) & IB_MSN_MASK);
 308                 break;
 309         /* aeth + atomicacketh */
 310         case OP(RC, ATOMIC_ACKNOWLEDGE):
 311                 trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN,
 312                                  be32_to_cpu(eh->at.aeth) >> 24,
 313                                  parse_syndrome(be32_to_cpu(eh->at.aeth) >> 24),
 314                                  be32_to_cpu(eh->at.aeth) & IB_MSN_MASK,
 315                                  ib_u64_get(&eh->at.atomic_ack_eth));
 316                 break;
 317         /* atomiceth */
 318         case OP(RC, COMPARE_SWAP):
 319         case OP(RC, FETCH_ADD):
 320                 trace_seq_printf(p, ATOMICETH_PRN,
 321                                  get_ib_ateth_vaddr(&eh->atomic_eth),
 322                                  eh->atomic_eth.rkey,
 323                                  get_ib_ateth_swap(&eh->atomic_eth),
 324                                  get_ib_ateth_compare(&eh->atomic_eth));
 325                 break;
 326         /* deth */
 327         case OP(UD, SEND_ONLY):
 328         case OP(UD, SEND_ONLY_WITH_IMMEDIATE):
 329                 trace_seq_printf(p, DETH_PRN,
 330                                  be32_to_cpu(eh->ud.deth[0]),
 331                                  be32_to_cpu(eh->ud.deth[1]) & RVT_QPN_MASK);
 332                 break;
 333         /* ieth */
 334         case OP(RC, SEND_LAST_WITH_INVALIDATE):
 335         case OP(RC, SEND_ONLY_WITH_INVALIDATE):
 336                 trace_seq_printf(p, IETH_PRN,
 337                                  be32_to_cpu(eh->ieth));
 338                 break;
 339         }
 340         trace_seq_putc(p, 0);
 341         return ret;
 342 }
 343
 344 const char *parse_sdma_flags(
 345         struct trace_seq *p,
 346         u64 desc0, u64 desc1)
 347 {
 348         const char *ret = trace_seq_buffer_ptr(p);
 349         char flags[5] = { 'x', 'x', 'x', 'x', 0 };
 350
 351         flags[0] = (desc1 & SDMA_DESC1_INT_REQ_FLAG) ? 'I' : '-';
 352         flags[1] = (desc1 & SDMA_DESC1_HEAD_TO_HOST_FLAG) ?  'H' : '-';
 353         flags[2] = (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) ? 'F' : '-';
 354         flags[3] = (desc0 & SDMA_DESC0_LAST_DESC_FLAG) ? 'L' : '-';
 355         trace_seq_printf(p, "%s", flags);
 356         if (desc0 & SDMA_DESC0_FIRST_DESC_FLAG)
 357                 trace_seq_printf(p, " amode:%u aidx:%u alen:%u",
 358                                  (u8)((desc1 >> SDMA_DESC1_HEADER_MODE_SHIFT) &
 359                                       SDMA_DESC1_HEADER_MODE_MASK),
 360                                  (u8)((desc1 >> SDMA_DESC1_HEADER_INDEX_SHIFT) &
 361                                       SDMA_DESC1_HEADER_INDEX_MASK),
 362                                  (u8)((desc1 >> SDMA_DESC1_HEADER_DWS_SHIFT) &
 363                                       SDMA_DESC1_HEADER_DWS_MASK));
 364         return ret;
 365 }
 366
 367 const char *print_u32_array(
 368         struct trace_seq *p,
 369         u32 *arr, int len)
 370 {
 371         int i;
 372         const char *ret = trace_seq_buffer_ptr(p);
 373
 374         for (i = 0; i < len ; i++)
 375                 trace_seq_printf(p, "%s%#x", i == 0 ? "" : " ", arr[i]);
 376         trace_seq_putc(p, 0);
 377         return ret;
 378 }
 379
 380 __hfi1_trace_fn(PKT);
 381 __hfi1_trace_fn(PROC);
 382 __hfi1_trace_fn(SDMA);
 383 __hfi1_trace_fn(LINKVERB);
 384 __hfi1_trace_fn(DEBUG);
 385 __hfi1_trace_fn(SNOOP);
 386 __hfi1_trace_fn(CNTR);
 387 __hfi1_trace_fn(PIO);
 388 __hfi1_trace_fn(DC8051);
 389 __hfi1_trace_fn(FIRMWARE);
 390 __hfi1_trace_fn(RCVCTRL);
 391 __hfi1_trace_fn(TID);
 392 __hfi1_trace_fn(MMU);
 393 __hfi1_trace_fn(IOCTL);