drivers/infiniband/hw/hfi1/trace.c

   1 /*
   2  * Copyright(c) 2015 - 2017 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_l4_str(u8 l4)
  95 {
  96         if (l4)
  97                 return "16B";
  98         else
  99                 return "9B";
 100 }
 101
 102 const char *hfi1_trace_get_packet_l2_str(u8 l2)
 103 {
 104         switch (l2) {
 105         case 0:
 106                 return "0";
 107         case 1:
 108                 return "1";
 109         case 2:
 110                 return "16B";
 111         case 3:
 112                 return "9B";
 113         }
 114         return "";
 115 }
 116
 117 #define IMM_PRN  "imm:%d"
 118 #define RETH_PRN "reth vaddr:0x%.16llx rkey:0x%.8x dlen:0x%.8x"
 119 #define AETH_PRN "aeth syn:0x%.2x %s msn:0x%.8x"
 120 #define DETH_PRN "deth qkey:0x%.8x sqpn:0x%.6x"
 121 #define IETH_PRN "ieth rkey:0x%.8x"
 122 #define ATOMICACKETH_PRN "origdata:%llx"
 123 #define ATOMICETH_PRN "vaddr:0x%llx rkey:0x%.8x sdata:%llx cdata:%llx"
 124
 125 #define OP(transport, op) IB_OPCODE_## transport ## _ ## op
 126
 127 static const char *parse_syndrome(u8 syndrome)
 128 {
 129         switch (syndrome >> 5) {
 130         case 0:
 131                 return "ACK";
 132         case 1:
 133                 return "RNRNAK";
 134         case 3:
 135                 return "NAK";
 136         }
 137         return "";
 138 }
 139
 140 void hfi1_trace_parse_9b_bth(struct ib_other_headers *ohdr,
 141                              u8 *ack, bool *becn, bool *fecn, u8 *mig,
 142                              u8 *se, u8 *pad, u8 *opcode, u8 *tver,
 143                              u16 *pkey, u32 *psn, u32 *qpn)
 144 {
 145         *ack = ib_bth_get_ackreq(ohdr);
 146         *becn = ib_bth_get_becn(ohdr);
 147         *fecn = ib_bth_get_fecn(ohdr);
 148         *mig = ib_bth_get_migreq(ohdr);
 149         *se = ib_bth_get_se(ohdr);
 150         *pad = ib_bth_get_pad(ohdr);
 151         *opcode = ib_bth_get_opcode(ohdr);
 152         *tver = ib_bth_get_tver(ohdr);
 153         *pkey = ib_bth_get_pkey(ohdr);
 154         *psn = mask_psn(ib_bth_get_psn(ohdr));
 155         *qpn = ib_bth_get_qpn(ohdr);
 156 }
 157
 158 void hfi1_trace_parse_16b_bth(struct ib_other_headers *ohdr,
 159                               u8 *ack, u8 *mig, u8 *opcode,
 160                               u8 *pad, u8 *se, u8 *tver,
 161                               u32 *psn, u32 *qpn)
 162 {
 163         *ack = ib_bth_get_ackreq(ohdr);
 164         *mig = ib_bth_get_migreq(ohdr);
 165         *opcode = ib_bth_get_opcode(ohdr);
 166         *pad = ib_bth_get_pad(ohdr);
 167         *se = ib_bth_get_se(ohdr);
 168         *tver = ib_bth_get_tver(ohdr);
 169         *psn = mask_psn(ib_bth_get_psn(ohdr));
 170         *qpn = ib_bth_get_qpn(ohdr);
 171 }
 172
 173 void hfi1_trace_parse_9b_hdr(struct ib_header *hdr, bool sc5,
 174                              u8 *lnh, u8 *lver, u8 *sl, u8 *sc,
 175                              u16 *len, u32 *dlid, u32 *slid)
 176 {
 177         *lnh = ib_get_lnh(hdr);
 178         *lver = ib_get_lver(hdr);
 179         *sl = ib_get_sl(hdr);
 180         *sc = ib_get_sc(hdr) | (sc5 << 4);
 181         *len = ib_get_len(hdr);
 182         *dlid = ib_get_dlid(hdr);
 183         *slid = ib_get_slid(hdr);
 184 }
 185
 186 void hfi1_trace_parse_16b_hdr(struct hfi1_16b_header *hdr,
 187                               u8 *age, bool *becn, bool *fecn,
 188                               u8 *l4, u8 *rc, u8 *sc,
 189                               u16 *entropy, u16 *len, u16 *pkey,
 190                               u32 *dlid, u32 *slid)
 191 {
 192         *age = hfi1_16B_get_age(hdr);
 193         *becn = hfi1_16B_get_becn(hdr);
 194         *fecn = hfi1_16B_get_fecn(hdr);
 195         *l4 = hfi1_16B_get_l4(hdr);
 196         *rc = hfi1_16B_get_rc(hdr);
 197         *sc = hfi1_16B_get_sc(hdr);
 198         *entropy = hfi1_16B_get_entropy(hdr);
 199         *len = hfi1_16B_get_len(hdr);
 200         *pkey = hfi1_16B_get_pkey(hdr);
 201         *dlid = hfi1_16B_get_dlid(hdr);
 202         *slid = hfi1_16B_get_slid(hdr);
 203 }
 204
 205 #define LRH_PRN "len:%d sc:%d dlid:0x%.4x slid:0x%.4x "
 206 #define LRH_9B_PRN "lnh:%d,%s lver:%d sl:%d"
 207 #define LRH_16B_PRN "age:%d becn:%d fecn:%d l4:%d " \
 208                     "rc:%d sc:%d pkey:0x%.4x entropy:0x%.4x"
 209 const char *hfi1_trace_fmt_lrh(struct trace_seq *p, bool bypass,
 210                                u8 age, bool becn, bool fecn, u8 l4,
 211                                u8 lnh, const char *lnh_name, u8 lver,
 212                                u8 rc, u8 sc, u8 sl, u16 entropy,
 213                                u16 len, u16 pkey, u32 dlid, u32 slid)
 214 {
 215         const char *ret = trace_seq_buffer_ptr(p);
 216
 217         trace_seq_printf(p, LRH_PRN, len, sc, dlid, slid);
 218
 219         if (bypass)
 220                 trace_seq_printf(p, LRH_16B_PRN,
 221                                  age, becn, fecn, l4, rc, sc, pkey, entropy);
 222
 223         else
 224                 trace_seq_printf(p, LRH_9B_PRN,
 225                                  lnh, lnh_name, lver, sl);
 226         trace_seq_putc(p, 0);
 227
 228         return ret;
 229 }
 230
 231 #define BTH_9B_PRN \
 232         "op:0x%.2x,%s se:%d m:%d pad:%d tver:%d pkey:0x%.4x " \
 233         "f:%d b:%d qpn:0x%.6x a:%d psn:0x%.8x"
 234 #define BTH_16B_PRN \
 235         "op:0x%.2x,%s se:%d m:%d pad:%d tver:%d " \
 236         "qpn:0x%.6x a:%d psn:0x%.8x"
 237 const char *hfi1_trace_fmt_bth(struct trace_seq *p, bool bypass,
 238                                u8 ack, bool becn, bool fecn, u8 mig,
 239                                u8 se, u8 pad, u8 opcode, const char *opname,
 240                                u8 tver, u16 pkey, u32 psn, u32 qpn)
 241 {
 242         const char *ret = trace_seq_buffer_ptr(p);
 243
 244         if (bypass)
 245                 trace_seq_printf(p, BTH_16B_PRN,
 246                                  opcode, opname,
 247                                  se, mig, pad, tver, qpn, ack, psn);
 248
 249         else
 250                 trace_seq_printf(p, BTH_9B_PRN,
 251                                  opcode, opname,
 252                                  se, mig, pad, tver, pkey, fecn, becn,
 253                                  qpn, ack, psn);
 254         trace_seq_putc(p, 0);
 255
 256         return ret;
 257 }
 258
 259 const char *parse_everbs_hdrs(
 260         struct trace_seq *p,
 261         u8 opcode,
 262         void *ehdrs)
 263 {
 264         union ib_ehdrs *eh = ehdrs;
 265         const char *ret = trace_seq_buffer_ptr(p);
 266
 267         switch (opcode) {
 268         /* imm */
 269         case OP(RC, SEND_LAST_WITH_IMMEDIATE):
 270         case OP(UC, SEND_LAST_WITH_IMMEDIATE):
 271         case OP(RC, SEND_ONLY_WITH_IMMEDIATE):
 272         case OP(UC, SEND_ONLY_WITH_IMMEDIATE):
 273         case OP(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 274         case OP(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 275                 trace_seq_printf(p, IMM_PRN,
 276                                  be32_to_cpu(eh->imm_data));
 277                 break;
 278         /* reth + imm */
 279         case OP(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 280         case OP(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 281                 trace_seq_printf(p, RETH_PRN " " IMM_PRN,
 282                                  get_ib_reth_vaddr(&eh->rc.reth),
 283                                  be32_to_cpu(eh->rc.reth.rkey),
 284                                  be32_to_cpu(eh->rc.reth.length),
 285                                  be32_to_cpu(eh->rc.imm_data));
 286                 break;
 287         /* reth */
 288         case OP(RC, RDMA_READ_REQUEST):
 289         case OP(RC, RDMA_WRITE_FIRST):
 290         case OP(UC, RDMA_WRITE_FIRST):
 291         case OP(RC, RDMA_WRITE_ONLY):
 292         case OP(UC, RDMA_WRITE_ONLY):
 293                 trace_seq_printf(p, RETH_PRN,
 294                                  get_ib_reth_vaddr(&eh->rc.reth),
 295                                  be32_to_cpu(eh->rc.reth.rkey),
 296                                  be32_to_cpu(eh->rc.reth.length));
 297                 break;
 298         case OP(RC, RDMA_READ_RESPONSE_FIRST):
 299         case OP(RC, RDMA_READ_RESPONSE_LAST):
 300         case OP(RC, RDMA_READ_RESPONSE_ONLY):
 301         case OP(RC, ACKNOWLEDGE):
 302                 trace_seq_printf(p, AETH_PRN, be32_to_cpu(eh->aeth) >> 24,
 303                                  parse_syndrome(be32_to_cpu(eh->aeth) >> 24),
 304                                  be32_to_cpu(eh->aeth) & IB_MSN_MASK);
 305                 break;
 306         /* aeth + atomicacketh */
 307         case OP(RC, ATOMIC_ACKNOWLEDGE):
 308                 trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN,
 309                                  be32_to_cpu(eh->at.aeth) >> 24,
 310                                  parse_syndrome(be32_to_cpu(eh->at.aeth) >> 24),
 311                                  be32_to_cpu(eh->at.aeth) & IB_MSN_MASK,
 312                                  ib_u64_get(&eh->at.atomic_ack_eth));
 313                 break;
 314         /* atomiceth */
 315         case OP(RC, COMPARE_SWAP):
 316         case OP(RC, FETCH_ADD):
 317                 trace_seq_printf(p, ATOMICETH_PRN,
 318                                  get_ib_ateth_vaddr(&eh->atomic_eth),
 319                                  eh->atomic_eth.rkey,
 320                                  get_ib_ateth_swap(&eh->atomic_eth),
 321                                  get_ib_ateth_compare(&eh->atomic_eth));
 322                 break;
 323         /* deth */
 324         case OP(UD, SEND_ONLY):
 325         case OP(UD, SEND_ONLY_WITH_IMMEDIATE):
 326                 trace_seq_printf(p, DETH_PRN,
 327                                  be32_to_cpu(eh->ud.deth[0]),
 328                                  be32_to_cpu(eh->ud.deth[1]) & RVT_QPN_MASK);
 329                 break;
 330         /* ieth */
 331         case OP(RC, SEND_LAST_WITH_INVALIDATE):
 332         case OP(RC, SEND_ONLY_WITH_INVALIDATE):
 333                 trace_seq_printf(p, IETH_PRN,
 334                                  be32_to_cpu(eh->ieth));
 335                 break;
 336         }
 337         trace_seq_putc(p, 0);
 338         return ret;
 339 }
 340
 341 const char *parse_sdma_flags(
 342         struct trace_seq *p,
 343         u64 desc0, u64 desc1)
 344 {
 345         const char *ret = trace_seq_buffer_ptr(p);
 346         char flags[5] = { 'x', 'x', 'x', 'x', 0 };
 347
 348         flags[0] = (desc1 & SDMA_DESC1_INT_REQ_FLAG) ? 'I' : '-';
 349         flags[1] = (desc1 & SDMA_DESC1_HEAD_TO_HOST_FLAG) ?  'H' : '-';
 350         flags[2] = (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) ? 'F' : '-';
 351         flags[3] = (desc0 & SDMA_DESC0_LAST_DESC_FLAG) ? 'L' : '-';
 352         trace_seq_printf(p, "%s", flags);
 353         if (desc0 & SDMA_DESC0_FIRST_DESC_FLAG)
 354                 trace_seq_printf(p, " amode:%u aidx:%u alen:%u",
 355                                  (u8)((desc1 >> SDMA_DESC1_HEADER_MODE_SHIFT) &
 356                                       SDMA_DESC1_HEADER_MODE_MASK),
 357                                  (u8)((desc1 >> SDMA_DESC1_HEADER_INDEX_SHIFT) &
 358                                       SDMA_DESC1_HEADER_INDEX_MASK),
 359                                  (u8)((desc1 >> SDMA_DESC1_HEADER_DWS_SHIFT) &
 360                                       SDMA_DESC1_HEADER_DWS_MASK));
 361         return ret;
 362 }
 363
 364 const char *print_u32_array(
 365         struct trace_seq *p,
 366         u32 *arr, int len)
 367 {
 368         int i;
 369         const char *ret = trace_seq_buffer_ptr(p);
 370
 371         for (i = 0; i < len ; i++)
 372                 trace_seq_printf(p, "%s%#x", i == 0 ? "" : " ", arr[i]);
 373         trace_seq_putc(p, 0);
 374         return ret;
 375 }
 376
 377 __hfi1_trace_fn(PKT);
 378 __hfi1_trace_fn(PROC);
 379 __hfi1_trace_fn(SDMA);
 380 __hfi1_trace_fn(LINKVERB);
 381 __hfi1_trace_fn(DEBUG);
 382 __hfi1_trace_fn(SNOOP);
 383 __hfi1_trace_fn(CNTR);
 384 __hfi1_trace_fn(PIO);
 385 __hfi1_trace_fn(DC8051);
 386 __hfi1_trace_fn(FIRMWARE);
 387 __hfi1_trace_fn(RCVCTRL);
 388 __hfi1_trace_fn(TID);
 389 __hfi1_trace_fn(MMU);
 390 __hfi1_trace_fn(IOCTL);