drivers/infiniband/hw/hfi1/trace.c

   1 /*
   2  * Copyright(c) 2015 - 2020 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 #include "exp_rcv.h"
  50 #include "ipoib.h"
  51
  52 static u8 __get_ib_hdr_len(struct ib_header *hdr)
  53 {
  54         struct ib_other_headers *ohdr;
  55         u8 opcode;
  56
  57         if (ib_get_lnh(hdr) == HFI1_LRH_BTH)
  58                 ohdr = &hdr->u.oth;
  59         else
  60                 ohdr = &hdr->u.l.oth;
  61         opcode = ib_bth_get_opcode(ohdr);
  62         return hdr_len_by_opcode[opcode] == 0 ?
  63                0 : hdr_len_by_opcode[opcode] - (12 + 8);
  64 }
  65
  66 static u8 __get_16b_hdr_len(struct hfi1_16b_header *hdr)
  67 {
  68         struct ib_other_headers *ohdr = NULL;
  69         u8 opcode;
  70         u8 l4 = hfi1_16B_get_l4(hdr);
  71
  72         if (l4 == OPA_16B_L4_FM) {
  73                 opcode = IB_OPCODE_UD_SEND_ONLY;
  74                 return (8 + 8); /* No BTH */
  75         }
  76
  77         if (l4 == OPA_16B_L4_IB_LOCAL)
  78                 ohdr = &hdr->u.oth;
  79         else
  80                 ohdr = &hdr->u.l.oth;
  81
  82         opcode = ib_bth_get_opcode(ohdr);
  83         return hdr_len_by_opcode[opcode] == 0 ?
  84                0 : hdr_len_by_opcode[opcode] - (12 + 8 + 8);
  85 }
  86
  87 u8 hfi1_trace_packet_hdr_len(struct hfi1_packet *packet)
  88 {
  89         if (packet->etype != RHF_RCV_TYPE_BYPASS)
  90                 return __get_ib_hdr_len(packet->hdr);
  91         else
  92                 return __get_16b_hdr_len(packet->hdr);
  93 }
  94
  95 u8 hfi1_trace_opa_hdr_len(struct hfi1_opa_header *opa_hdr)
  96 {
  97         if (!opa_hdr->hdr_type)
  98                 return __get_ib_hdr_len(&opa_hdr->ibh);
  99         else
 100                 return __get_16b_hdr_len(&opa_hdr->opah);
 101 }
 102
 103 const char *hfi1_trace_get_packet_l4_str(u8 l4)
 104 {
 105         if (l4)
 106                 return "16B";
 107         else
 108                 return "9B";
 109 }
 110
 111 const char *hfi1_trace_get_packet_l2_str(u8 l2)
 112 {
 113         switch (l2) {
 114         case 0:
 115                 return "0";
 116         case 1:
 117                 return "1";
 118         case 2:
 119                 return "16B";
 120         case 3:
 121                 return "9B";
 122         }
 123         return "";
 124 }
 125
 126 #define IMM_PRN  "imm:%d"
 127 #define RETH_PRN "reth vaddr:0x%.16llx rkey:0x%.8x dlen:0x%.8x"
 128 #define AETH_PRN "aeth syn:0x%.2x %s msn:0x%.8x"
 129 #define DETH_PRN "deth qkey:0x%.8x sqpn:0x%.6x"
 130 #define DETH_ENTROPY_PRN "deth qkey:0x%.8x sqpn:0x%.6x entropy:0x%.2x"
 131 #define IETH_PRN "ieth rkey:0x%.8x"
 132 #define ATOMICACKETH_PRN "origdata:%llx"
 133 #define ATOMICETH_PRN "vaddr:0x%llx rkey:0x%.8x sdata:%llx cdata:%llx"
 134 #define TID_RDMA_KDETH "kdeth0 0x%x kdeth1 0x%x"
 135 #define TID_RDMA_KDETH_DATA "kdeth0 0x%x: kver %u sh %u intr %u tidctrl %u tid %x offset %x kdeth1 0x%x: jkey %x"
 136 #define TID_READ_REQ_PRN "tid_flow_psn 0x%x tid_flow_qp 0x%x verbs_qp 0x%x"
 137 #define TID_READ_RSP_PRN "verbs_qp 0x%x"
 138 #define TID_WRITE_REQ_PRN "original_qp 0x%x"
 139 #define TID_WRITE_RSP_PRN "tid_flow_psn 0x%x tid_flow_qp 0x%x verbs_qp 0x%x"
 140 #define TID_WRITE_DATA_PRN "verbs_qp 0x%x"
 141 #define TID_ACK_PRN "tid_flow_psn 0x%x verbs_psn 0x%x tid_flow_qp 0x%x verbs_qp 0x%x"
 142 #define TID_RESYNC_PRN "verbs_qp 0x%x"
 143
 144 #define OP(transport, op) IB_OPCODE_## transport ## _ ## op
 145
 146 static const char *parse_syndrome(u8 syndrome)
 147 {
 148         switch (syndrome >> 5) {
 149         case 0:
 150                 return "ACK";
 151         case 1:
 152                 return "RNRNAK";
 153         case 3:
 154                 return "NAK";
 155         }
 156         return "";
 157 }
 158
 159 void hfi1_trace_parse_9b_bth(struct ib_other_headers *ohdr,
 160                              u8 *ack, bool *becn, bool *fecn, u8 *mig,
 161                              u8 *se, u8 *pad, u8 *opcode, u8 *tver,
 162                              u16 *pkey, u32 *psn, u32 *qpn)
 163 {
 164         *ack = ib_bth_get_ackreq(ohdr);
 165         *becn = ib_bth_get_becn(ohdr);
 166         *fecn = ib_bth_get_fecn(ohdr);
 167         *mig = ib_bth_get_migreq(ohdr);
 168         *se = ib_bth_get_se(ohdr);
 169         *pad = ib_bth_get_pad(ohdr);
 170         *opcode = ib_bth_get_opcode(ohdr);
 171         *tver = ib_bth_get_tver(ohdr);
 172         *pkey = ib_bth_get_pkey(ohdr);
 173         *psn = mask_psn(ib_bth_get_psn(ohdr));
 174         *qpn = ib_bth_get_qpn(ohdr);
 175 }
 176
 177 void hfi1_trace_parse_16b_bth(struct ib_other_headers *ohdr,
 178                               u8 *ack, u8 *mig, u8 *opcode,
 179                               u8 *pad, u8 *se, u8 *tver,
 180                               u32 *psn, u32 *qpn)
 181 {
 182         *ack = ib_bth_get_ackreq(ohdr);
 183         *mig = ib_bth_get_migreq(ohdr);
 184         *opcode = ib_bth_get_opcode(ohdr);
 185         *pad = ib_bth_get_pad(ohdr);
 186         *se = ib_bth_get_se(ohdr);
 187         *tver = ib_bth_get_tver(ohdr);
 188         *psn = mask_psn(ib_bth_get_psn(ohdr));
 189         *qpn = ib_bth_get_qpn(ohdr);
 190 }
 191
 192 void hfi1_trace_parse_9b_hdr(struct ib_header *hdr, bool sc5,
 193                              u8 *lnh, u8 *lver, u8 *sl, u8 *sc,
 194                              u16 *len, u32 *dlid, u32 *slid)
 195 {
 196         *lnh = ib_get_lnh(hdr);
 197         *lver = ib_get_lver(hdr);
 198         *sl = ib_get_sl(hdr);
 199         *sc = ib_get_sc(hdr) | (sc5 << 4);
 200         *len = ib_get_len(hdr);
 201         *dlid = ib_get_dlid(hdr);
 202         *slid = ib_get_slid(hdr);
 203 }
 204
 205 void hfi1_trace_parse_16b_hdr(struct hfi1_16b_header *hdr,
 206                               u8 *age, bool *becn, bool *fecn,
 207                               u8 *l4, u8 *rc, u8 *sc,
 208                               u16 *entropy, u16 *len, u16 *pkey,
 209                               u32 *dlid, u32 *slid)
 210 {
 211         *age = hfi1_16B_get_age(hdr);
 212         *becn = hfi1_16B_get_becn(hdr);
 213         *fecn = hfi1_16B_get_fecn(hdr);
 214         *l4 = hfi1_16B_get_l4(hdr);
 215         *rc = hfi1_16B_get_rc(hdr);
 216         *sc = hfi1_16B_get_sc(hdr);
 217         *entropy = hfi1_16B_get_entropy(hdr);
 218         *len = hfi1_16B_get_len(hdr);
 219         *pkey = hfi1_16B_get_pkey(hdr);
 220         *dlid = hfi1_16B_get_dlid(hdr);
 221         *slid = hfi1_16B_get_slid(hdr);
 222 }
 223
 224 #define LRH_PRN "len:%d sc:%d dlid:0x%.4x slid:0x%.4x "
 225 #define LRH_9B_PRN "lnh:%d,%s lver:%d sl:%d"
 226 #define LRH_16B_PRN "age:%d becn:%d fecn:%d l4:%d " \
 227                     "rc:%d sc:%d pkey:0x%.4x entropy:0x%.4x"
 228 const char *hfi1_trace_fmt_lrh(struct trace_seq *p, bool bypass,
 229                                u8 age, bool becn, bool fecn, u8 l4,
 230                                u8 lnh, const char *lnh_name, u8 lver,
 231                                u8 rc, u8 sc, u8 sl, u16 entropy,
 232                                u16 len, u16 pkey, u32 dlid, u32 slid)
 233 {
 234         const char *ret = trace_seq_buffer_ptr(p);
 235
 236         trace_seq_printf(p, LRH_PRN, len, sc, dlid, slid);
 237
 238         if (bypass)
 239                 trace_seq_printf(p, LRH_16B_PRN,
 240                                  age, becn, fecn, l4, rc, sc, pkey, entropy);
 241
 242         else
 243                 trace_seq_printf(p, LRH_9B_PRN,
 244                                  lnh, lnh_name, lver, sl);
 245         trace_seq_putc(p, 0);
 246
 247         return ret;
 248 }
 249
 250 #define BTH_9B_PRN \
 251         "op:0x%.2x,%s se:%d m:%d pad:%d tver:%d pkey:0x%.4x " \
 252         "f:%d b:%d qpn:0x%.6x a:%d psn:0x%.8x"
 253 #define BTH_16B_PRN \
 254         "op:0x%.2x,%s se:%d m:%d pad:%d tver:%d " \
 255         "qpn:0x%.6x a:%d psn:0x%.8x"
 256 #define L4_FM_16B_PRN \
 257         "op:0x%.2x,%s dest_qpn:0x%.6x src_qpn:0x%.6x"
 258 const char *hfi1_trace_fmt_rest(struct trace_seq *p, bool bypass, u8 l4,
 259                                 u8 ack, bool becn, bool fecn, u8 mig,
 260                                 u8 se, u8 pad, u8 opcode, const char *opname,
 261                                 u8 tver, u16 pkey, u32 psn, u32 qpn,
 262                                 u32 dest_qpn, u32 src_qpn)
 263 {
 264         const char *ret = trace_seq_buffer_ptr(p);
 265
 266         if (bypass)
 267                 if (l4 == OPA_16B_L4_FM)
 268                         trace_seq_printf(p, L4_FM_16B_PRN,
 269                                          opcode, opname, dest_qpn, src_qpn);
 270                 else
 271                         trace_seq_printf(p, BTH_16B_PRN,
 272                                          opcode, opname,
 273                                          se, mig, pad, tver, qpn, ack, psn);
 274
 275         else
 276                 trace_seq_printf(p, BTH_9B_PRN,
 277                                  opcode, opname,
 278                                  se, mig, pad, tver, pkey, fecn, becn,
 279                                  qpn, ack, psn);
 280         trace_seq_putc(p, 0);
 281
 282         return ret;
 283 }
 284
 285 const char *parse_everbs_hdrs(
 286         struct trace_seq *p,
 287         u8 opcode, u8 l4, u32 dest_qpn, u32 src_qpn,
 288         void *ehdrs)
 289 {
 290         union ib_ehdrs *eh = ehdrs;
 291         const char *ret = trace_seq_buffer_ptr(p);
 292
 293         if (l4 == OPA_16B_L4_FM) {
 294                 trace_seq_printf(p, "mgmt pkt");
 295                 goto out;
 296         }
 297
 298         switch (opcode) {
 299         /* imm */
 300         case OP(RC, SEND_LAST_WITH_IMMEDIATE):
 301         case OP(UC, SEND_LAST_WITH_IMMEDIATE):
 302         case OP(RC, SEND_ONLY_WITH_IMMEDIATE):
 303         case OP(UC, SEND_ONLY_WITH_IMMEDIATE):
 304         case OP(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 305         case OP(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 306                 trace_seq_printf(p, IMM_PRN,
 307                                  be32_to_cpu(eh->imm_data));
 308                 break;
 309         /* reth + imm */
 310         case OP(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 311         case OP(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 312                 trace_seq_printf(p, RETH_PRN " " IMM_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                                  be32_to_cpu(eh->rc.imm_data));
 317                 break;
 318         /* reth */
 319         case OP(RC, RDMA_READ_REQUEST):
 320         case OP(RC, RDMA_WRITE_FIRST):
 321         case OP(UC, RDMA_WRITE_FIRST):
 322         case OP(RC, RDMA_WRITE_ONLY):
 323         case OP(UC, RDMA_WRITE_ONLY):
 324                 trace_seq_printf(p, RETH_PRN,
 325                                  get_ib_reth_vaddr(&eh->rc.reth),
 326                                  be32_to_cpu(eh->rc.reth.rkey),
 327                                  be32_to_cpu(eh->rc.reth.length));
 328                 break;
 329         case OP(RC, RDMA_READ_RESPONSE_FIRST):
 330         case OP(RC, RDMA_READ_RESPONSE_LAST):
 331         case OP(RC, RDMA_READ_RESPONSE_ONLY):
 332         case OP(RC, ACKNOWLEDGE):
 333                 trace_seq_printf(p, AETH_PRN, be32_to_cpu(eh->aeth) >> 24,
 334                                  parse_syndrome(be32_to_cpu(eh->aeth) >> 24),
 335                                  be32_to_cpu(eh->aeth) & IB_MSN_MASK);
 336                 break;
 337         case OP(TID_RDMA, WRITE_REQ):
 338                 trace_seq_printf(p, TID_RDMA_KDETH " " RETH_PRN " "
 339                                  TID_WRITE_REQ_PRN,
 340                                  le32_to_cpu(eh->tid_rdma.w_req.kdeth0),
 341                                  le32_to_cpu(eh->tid_rdma.w_req.kdeth1),
 342                                  ib_u64_get(&eh->tid_rdma.w_req.reth.vaddr),
 343                                  be32_to_cpu(eh->tid_rdma.w_req.reth.rkey),
 344                                  be32_to_cpu(eh->tid_rdma.w_req.reth.length),
 345                                  be32_to_cpu(eh->tid_rdma.w_req.verbs_qp));
 346                 break;
 347         case OP(TID_RDMA, WRITE_RESP):
 348                 trace_seq_printf(p, TID_RDMA_KDETH " " AETH_PRN " "
 349                                  TID_WRITE_RSP_PRN,
 350                                  le32_to_cpu(eh->tid_rdma.w_rsp.kdeth0),
 351                                  le32_to_cpu(eh->tid_rdma.w_rsp.kdeth1),
 352                                  be32_to_cpu(eh->tid_rdma.w_rsp.aeth) >> 24,
 353                                  parse_syndrome(/* aeth */
 354                                          be32_to_cpu(eh->tid_rdma.w_rsp.aeth)
 355                                          >> 24),
 356                                  (be32_to_cpu(eh->tid_rdma.w_rsp.aeth) &
 357                                   IB_MSN_MASK),
 358                                  be32_to_cpu(eh->tid_rdma.w_rsp.tid_flow_psn),
 359                                  be32_to_cpu(eh->tid_rdma.w_rsp.tid_flow_qp),
 360                                  be32_to_cpu(eh->tid_rdma.w_rsp.verbs_qp));
 361                 break;
 362         case OP(TID_RDMA, WRITE_DATA_LAST):
 363         case OP(TID_RDMA, WRITE_DATA):
 364                 trace_seq_printf(p, TID_RDMA_KDETH_DATA " " TID_WRITE_DATA_PRN,
 365                                  le32_to_cpu(eh->tid_rdma.w_data.kdeth0),
 366                                  KDETH_GET(eh->tid_rdma.w_data.kdeth0, KVER),
 367                                  KDETH_GET(eh->tid_rdma.w_data.kdeth0, SH),
 368                                  KDETH_GET(eh->tid_rdma.w_data.kdeth0, INTR),
 369                                  KDETH_GET(eh->tid_rdma.w_data.kdeth0, TIDCTRL),
 370                                  KDETH_GET(eh->tid_rdma.w_data.kdeth0, TID),
 371                                  KDETH_GET(eh->tid_rdma.w_data.kdeth0, OFFSET),
 372                                  le32_to_cpu(eh->tid_rdma.w_data.kdeth1),
 373                                  KDETH_GET(eh->tid_rdma.w_data.kdeth1, JKEY),
 374                                  be32_to_cpu(eh->tid_rdma.w_data.verbs_qp));
 375                 break;
 376         case OP(TID_RDMA, READ_REQ):
 377                 trace_seq_printf(p, TID_RDMA_KDETH " " RETH_PRN " "
 378                                  TID_READ_REQ_PRN,
 379                                  le32_to_cpu(eh->tid_rdma.r_req.kdeth0),
 380                                  le32_to_cpu(eh->tid_rdma.r_req.kdeth1),
 381                                  ib_u64_get(&eh->tid_rdma.r_req.reth.vaddr),
 382                                  be32_to_cpu(eh->tid_rdma.r_req.reth.rkey),
 383                                  be32_to_cpu(eh->tid_rdma.r_req.reth.length),
 384                                  be32_to_cpu(eh->tid_rdma.r_req.tid_flow_psn),
 385                                  be32_to_cpu(eh->tid_rdma.r_req.tid_flow_qp),
 386                                  be32_to_cpu(eh->tid_rdma.r_req.verbs_qp));
 387                 break;
 388         case OP(TID_RDMA, READ_RESP):
 389                 trace_seq_printf(p, TID_RDMA_KDETH_DATA " " AETH_PRN " "
 390                                  TID_READ_RSP_PRN,
 391                                  le32_to_cpu(eh->tid_rdma.r_rsp.kdeth0),
 392                                  KDETH_GET(eh->tid_rdma.r_rsp.kdeth0, KVER),
 393                                  KDETH_GET(eh->tid_rdma.r_rsp.kdeth0, SH),
 394                                  KDETH_GET(eh->tid_rdma.r_rsp.kdeth0, INTR),
 395                                  KDETH_GET(eh->tid_rdma.r_rsp.kdeth0, TIDCTRL),
 396                                  KDETH_GET(eh->tid_rdma.r_rsp.kdeth0, TID),
 397                                  KDETH_GET(eh->tid_rdma.r_rsp.kdeth0, OFFSET),
 398                                  le32_to_cpu(eh->tid_rdma.r_rsp.kdeth1),
 399                                  KDETH_GET(eh->tid_rdma.r_rsp.kdeth1, JKEY),
 400                                  be32_to_cpu(eh->tid_rdma.r_rsp.aeth) >> 24,
 401                                  parse_syndrome(/* aeth */
 402                                          be32_to_cpu(eh->tid_rdma.r_rsp.aeth)
 403                                          >> 24),
 404                                  (be32_to_cpu(eh->tid_rdma.r_rsp.aeth) &
 405                                   IB_MSN_MASK),
 406                                  be32_to_cpu(eh->tid_rdma.r_rsp.verbs_qp));
 407                 break;
 408         case OP(TID_RDMA, ACK):
 409                 trace_seq_printf(p, TID_RDMA_KDETH " " AETH_PRN " "
 410                                  TID_ACK_PRN,
 411                                  le32_to_cpu(eh->tid_rdma.ack.kdeth0),
 412                                  le32_to_cpu(eh->tid_rdma.ack.kdeth1),
 413                                  be32_to_cpu(eh->tid_rdma.ack.aeth) >> 24,
 414                                  parse_syndrome(/* aeth */
 415                                          be32_to_cpu(eh->tid_rdma.ack.aeth)
 416                                          >> 24),
 417                                  (be32_to_cpu(eh->tid_rdma.ack.aeth) &
 418                                   IB_MSN_MASK),
 419                                  be32_to_cpu(eh->tid_rdma.ack.tid_flow_psn),
 420                                  be32_to_cpu(eh->tid_rdma.ack.verbs_psn),
 421                                  be32_to_cpu(eh->tid_rdma.ack.tid_flow_qp),
 422                                  be32_to_cpu(eh->tid_rdma.ack.verbs_qp));
 423                 break;
 424         case OP(TID_RDMA, RESYNC):
 425                 trace_seq_printf(p, TID_RDMA_KDETH " " TID_RESYNC_PRN,
 426                                  le32_to_cpu(eh->tid_rdma.resync.kdeth0),
 427                                  le32_to_cpu(eh->tid_rdma.resync.kdeth1),
 428                                  be32_to_cpu(eh->tid_rdma.resync.verbs_qp));
 429                 break;
 430         /* aeth + atomicacketh */
 431         case OP(RC, ATOMIC_ACKNOWLEDGE):
 432                 trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN,
 433                                  be32_to_cpu(eh->at.aeth) >> 24,
 434                                  parse_syndrome(be32_to_cpu(eh->at.aeth) >> 24),
 435                                  be32_to_cpu(eh->at.aeth) & IB_MSN_MASK,
 436                                  ib_u64_get(&eh->at.atomic_ack_eth));
 437                 break;
 438         /* atomiceth */
 439         case OP(RC, COMPARE_SWAP):
 440         case OP(RC, FETCH_ADD):
 441                 trace_seq_printf(p, ATOMICETH_PRN,
 442                                  get_ib_ateth_vaddr(&eh->atomic_eth),
 443                                  eh->atomic_eth.rkey,
 444                                  get_ib_ateth_swap(&eh->atomic_eth),
 445                                  get_ib_ateth_compare(&eh->atomic_eth));
 446                 break;
 447         /* deth */
 448         case OP(UD, SEND_ONLY):
 449                 trace_seq_printf(p, DETH_ENTROPY_PRN,
 450                                  be32_to_cpu(eh->ud.deth[0]),
 451                                  be32_to_cpu(eh->ud.deth[1]) & RVT_QPN_MASK,
 452                                  be32_to_cpu(eh->ud.deth[1]) >>
 453                                              HFI1_IPOIB_ENTROPY_SHIFT);
 454                 break;
 455         case OP(UD, SEND_ONLY_WITH_IMMEDIATE):
 456                 trace_seq_printf(p, DETH_PRN,
 457                                  be32_to_cpu(eh->ud.deth[0]),
 458                                  be32_to_cpu(eh->ud.deth[1]) & RVT_QPN_MASK);
 459                 break;
 460         /* ieth */
 461         case OP(RC, SEND_LAST_WITH_INVALIDATE):
 462         case OP(RC, SEND_ONLY_WITH_INVALIDATE):
 463                 trace_seq_printf(p, IETH_PRN,
 464                                  be32_to_cpu(eh->ieth));
 465                 break;
 466         }
 467 out:
 468         trace_seq_putc(p, 0);
 469         return ret;
 470 }
 471
 472 const char *parse_sdma_flags(
 473         struct trace_seq *p,
 474         u64 desc0, u64 desc1)
 475 {
 476         const char *ret = trace_seq_buffer_ptr(p);
 477         char flags[5] = { 'x', 'x', 'x', 'x', 0 };
 478
 479         flags[0] = (desc1 & SDMA_DESC1_INT_REQ_FLAG) ? 'I' : '-';
 480         flags[1] = (desc1 & SDMA_DESC1_HEAD_TO_HOST_FLAG) ?  'H' : '-';
 481         flags[2] = (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) ? 'F' : '-';
 482         flags[3] = (desc0 & SDMA_DESC0_LAST_DESC_FLAG) ? 'L' : '-';
 483         trace_seq_printf(p, "%s", flags);
 484         if (desc0 & SDMA_DESC0_FIRST_DESC_FLAG)
 485                 trace_seq_printf(p, " amode:%u aidx:%u alen:%u",
 486                                  (u8)((desc1 >> SDMA_DESC1_HEADER_MODE_SHIFT) &
 487                                       SDMA_DESC1_HEADER_MODE_MASK),
 488                                  (u8)((desc1 >> SDMA_DESC1_HEADER_INDEX_SHIFT) &
 489                                       SDMA_DESC1_HEADER_INDEX_MASK),
 490                                  (u8)((desc1 >> SDMA_DESC1_HEADER_DWS_SHIFT) &
 491                                       SDMA_DESC1_HEADER_DWS_MASK));
 492         return ret;
 493 }
 494
 495 const char *print_u32_array(
 496         struct trace_seq *p,
 497         u32 *arr, int len)
 498 {
 499         int i;
 500         const char *ret = trace_seq_buffer_ptr(p);
 501
 502         for (i = 0; i < len ; i++)
 503                 trace_seq_printf(p, "%s%#x", i == 0 ? "" : " ", arr[i]);
 504         trace_seq_putc(p, 0);
 505         return ret;
 506 }
 507
 508 u8 hfi1_trace_get_tid_ctrl(u32 ent)
 509 {
 510         return EXP_TID_GET(ent, CTRL);
 511 }
 512
 513 u16 hfi1_trace_get_tid_len(u32 ent)
 514 {
 515         return EXP_TID_GET(ent, LEN);
 516 }
 517
 518 u16 hfi1_trace_get_tid_idx(u32 ent)
 519 {
 520         return EXP_TID_GET(ent, IDX);
 521 }
 522
 523 struct hfi1_ctxt_hist {
 524         atomic_t count;
 525         atomic_t data[255];
 526 };
 527
 528 struct hfi1_ctxt_hist hist = {
 529         .count = ATOMIC_INIT(0)
 530 };
 531
 532 const char *hfi1_trace_print_rsm_hist(struct trace_seq *p, unsigned int ctxt)
 533 {
 534         int i, len = ARRAY_SIZE(hist.data);
 535         const char *ret = trace_seq_buffer_ptr(p);
 536         unsigned long packet_count = atomic_fetch_inc(&hist.count);
 537
 538         trace_seq_printf(p, "packet[%lu]", packet_count);
 539         for (i = 0; i < len; ++i) {
 540                 unsigned long val;
 541                 atomic_t *count = &hist.data[i];
 542
 543                 if (ctxt == i)
 544                         val = atomic_fetch_inc(count);
 545                 else
 546                         val = atomic_read(count);
 547
 548                 if (val)
 549                         trace_seq_printf(p, "(%d:%lu)", i, val);
 550         }
 551         trace_seq_putc(p, 0);
 552         return ret;
 553 }
 554
 555 __hfi1_trace_fn(AFFINITY);
 556 __hfi1_trace_fn(PKT);
 557 __hfi1_trace_fn(PROC);
 558 __hfi1_trace_fn(SDMA);
 559 __hfi1_trace_fn(LINKVERB);
 560 __hfi1_trace_fn(DEBUG);
 561 __hfi1_trace_fn(SNOOP);
 562 __hfi1_trace_fn(CNTR);
 563 __hfi1_trace_fn(PIO);
 564 __hfi1_trace_fn(DC8051);
 565 __hfi1_trace_fn(FIRMWARE);
 566 __hfi1_trace_fn(RCVCTRL);
 567 __hfi1_trace_fn(TID);
 568 __hfi1_trace_fn(MMU);
 569 __hfi1_trace_fn(IOCTL);