linux/drivers/infiniband/hw/hfi1/trace.c
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   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
  50static 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
  64static 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
  78u8 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
  86u8 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
  94const char *hfi1_trace_get_packet_l4_str(u8 l4)
  95{
  96        if (l4)
  97                return "16B";
  98        else
  99                return "9B";
 100}
 101
 102const 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
 127static 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
 140void 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
 158void 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
 173void 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
 186void 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"
 209const 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"
 237const 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
 259const 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
 341const 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
 364const 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);
 391