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 u8 ibhdr_exhdr_len(struct ib_header *hdr)
  51 {
  52         struct ib_other_headers *ohdr;
  53         u8 opcode;
  54         u8 lnh = (u8)(be16_to_cpu(hdr->lrh[0]) & 3);
  55
  56         if (lnh == HFI1_LRH_BTH)
  57                 ohdr = &hdr->u.oth;
  58         else
  59                 ohdr = &hdr->u.l.oth;
  60         opcode = be32_to_cpu(ohdr->bth[0]) >> 24;
  61         return hdr_len_by_opcode[opcode] == 0 ?
  62                0 : hdr_len_by_opcode[opcode] - (12 + 8);
  63 }
  64
  65 #define IMM_PRN  "imm %d"
  66 #define RETH_PRN "reth vaddr 0x%.16llx rkey 0x%.8x dlen 0x%.8x"
  67 #define AETH_PRN "aeth syn 0x%.2x %s msn 0x%.8x"
  68 #define DETH_PRN "deth qkey 0x%.8x sqpn 0x%.6x"
  69 #define IETH_PRN "ieth rkey 0x%.8x"
  70 #define ATOMICACKETH_PRN "origdata %llx"
  71 #define ATOMICETH_PRN "vaddr 0x%llx rkey 0x%.8x sdata %llx cdata %llx"
  72
  73 #define OP(transport, op) IB_OPCODE_## transport ## _ ## op
  74
  75 static const char *parse_syndrome(u8 syndrome)
  76 {
  77         switch (syndrome >> 5) {
  78         case 0:
  79                 return "ACK";
  80         case 1:
  81                 return "RNRNAK";
  82         case 3:
  83                 return "NAK";
  84         }
  85         return "";
  86 }
  87
  88 const char *parse_everbs_hdrs(
  89         struct trace_seq *p,
  90         u8 opcode,
  91         void *ehdrs)
  92 {
  93         union ib_ehdrs *eh = ehdrs;
  94         const char *ret = trace_seq_buffer_ptr(p);
  95
  96         switch (opcode) {
  97         /* imm */
  98         case OP(RC, SEND_LAST_WITH_IMMEDIATE):
  99         case OP(UC, SEND_LAST_WITH_IMMEDIATE):
 100         case OP(RC, SEND_ONLY_WITH_IMMEDIATE):
 101         case OP(UC, SEND_ONLY_WITH_IMMEDIATE):
 102         case OP(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 103         case OP(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 104                 trace_seq_printf(p, IMM_PRN,
 105                                  be32_to_cpu(eh->imm_data));
 106                 break;
 107         /* reth + imm */
 108         case OP(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 109         case OP(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 110                 trace_seq_printf(p, RETH_PRN " " IMM_PRN,
 111                                  get_ib_reth_vaddr(&eh->rc.reth),
 112                                  be32_to_cpu(eh->rc.reth.rkey),
 113                                  be32_to_cpu(eh->rc.reth.length),
 114                                  be32_to_cpu(eh->rc.imm_data));
 115                 break;
 116         /* reth */
 117         case OP(RC, RDMA_READ_REQUEST):
 118         case OP(RC, RDMA_WRITE_FIRST):
 119         case OP(UC, RDMA_WRITE_FIRST):
 120         case OP(RC, RDMA_WRITE_ONLY):
 121         case OP(UC, RDMA_WRITE_ONLY):
 122                 trace_seq_printf(p, RETH_PRN,
 123                                  get_ib_reth_vaddr(&eh->rc.reth),
 124                                  be32_to_cpu(eh->rc.reth.rkey),
 125                                  be32_to_cpu(eh->rc.reth.length));
 126                 break;
 127         case OP(RC, RDMA_READ_RESPONSE_FIRST):
 128         case OP(RC, RDMA_READ_RESPONSE_LAST):
 129         case OP(RC, RDMA_READ_RESPONSE_ONLY):
 130         case OP(RC, ACKNOWLEDGE):
 131                 trace_seq_printf(p, AETH_PRN, be32_to_cpu(eh->aeth) >> 24,
 132                                  parse_syndrome(be32_to_cpu(eh->aeth) >> 24),
 133                                  be32_to_cpu(eh->aeth) & HFI1_MSN_MASK);
 134                 break;
 135         /* aeth + atomicacketh */
 136         case OP(RC, ATOMIC_ACKNOWLEDGE):
 137                 trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN,
 138                                  be32_to_cpu(eh->at.aeth) >> 24,
 139                                  parse_syndrome(be32_to_cpu(eh->at.aeth) >> 24),
 140                                  be32_to_cpu(eh->at.aeth) & HFI1_MSN_MASK,
 141                                  ib_u64_get(&eh->at.atomic_ack_eth));
 142                 break;
 143         /* atomiceth */
 144         case OP(RC, COMPARE_SWAP):
 145         case OP(RC, FETCH_ADD):
 146                 trace_seq_printf(p, ATOMICETH_PRN,
 147                                  get_ib_ateth_vaddr(&eh->atomic_eth),
 148                                  eh->atomic_eth.rkey,
 149                                  get_ib_ateth_swap(&eh->atomic_eth),
 150                                  get_ib_ateth_compare(&eh->atomic_eth));
 151                 break;
 152         /* deth */
 153         case OP(UD, SEND_ONLY):
 154         case OP(UD, SEND_ONLY_WITH_IMMEDIATE):
 155                 trace_seq_printf(p, DETH_PRN,
 156                                  be32_to_cpu(eh->ud.deth[0]),
 157                                  be32_to_cpu(eh->ud.deth[1]) & RVT_QPN_MASK);
 158                 break;
 159         /* ieth */
 160         case OP(RC, SEND_LAST_WITH_INVALIDATE):
 161         case OP(RC, SEND_ONLY_WITH_INVALIDATE):
 162                 trace_seq_printf(p, IETH_PRN,
 163                                  be32_to_cpu(eh->ieth));
 164                 break;
 165         }
 166         trace_seq_putc(p, 0);
 167         return ret;
 168 }
 169
 170 const char *parse_sdma_flags(
 171         struct trace_seq *p,
 172         u64 desc0, u64 desc1)
 173 {
 174         const char *ret = trace_seq_buffer_ptr(p);
 175         char flags[5] = { 'x', 'x', 'x', 'x', 0 };
 176
 177         flags[0] = (desc1 & SDMA_DESC1_INT_REQ_FLAG) ? 'I' : '-';
 178         flags[1] = (desc1 & SDMA_DESC1_HEAD_TO_HOST_FLAG) ?  'H' : '-';
 179         flags[2] = (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) ? 'F' : '-';
 180         flags[3] = (desc0 & SDMA_DESC0_LAST_DESC_FLAG) ? 'L' : '-';
 181         trace_seq_printf(p, "%s", flags);
 182         if (desc0 & SDMA_DESC0_FIRST_DESC_FLAG)
 183                 trace_seq_printf(p, " amode:%u aidx:%u alen:%u",
 184                                  (u8)((desc1 >> SDMA_DESC1_HEADER_MODE_SHIFT) &
 185                                       SDMA_DESC1_HEADER_MODE_MASK),
 186                                  (u8)((desc1 >> SDMA_DESC1_HEADER_INDEX_SHIFT) &
 187                                       SDMA_DESC1_HEADER_INDEX_MASK),
 188                                  (u8)((desc1 >> SDMA_DESC1_HEADER_DWS_SHIFT) &
 189                                       SDMA_DESC1_HEADER_DWS_MASK));
 190         return ret;
 191 }
 192
 193 const char *print_u32_array(
 194         struct trace_seq *p,
 195         u32 *arr, int len)
 196 {
 197         int i;
 198         const char *ret = trace_seq_buffer_ptr(p);
 199
 200         for (i = 0; i < len ; i++)
 201                 trace_seq_printf(p, "%s%#x", i == 0 ? "" : " ", arr[i]);
 202         trace_seq_putc(p, 0);
 203         return ret;
 204 }
 205
 206 __hfi1_trace_fn(PKT);
 207 __hfi1_trace_fn(PROC);
 208 __hfi1_trace_fn(SDMA);
 209 __hfi1_trace_fn(LINKVERB);
 210 __hfi1_trace_fn(DEBUG);
 211 __hfi1_trace_fn(SNOOP);
 212 __hfi1_trace_fn(CNTR);
 213 __hfi1_trace_fn(PIO);
 214 __hfi1_trace_fn(DC8051);
 215 __hfi1_trace_fn(FIRMWARE);
 216 __hfi1_trace_fn(RCVCTRL);
 217 __hfi1_trace_fn(TID);
 218 __hfi1_trace_fn(MMU);
 219 __hfi1_trace_fn(IOCTL);