drivers/staging/rdma/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 hfi1_ib_header *hdr)
  51 {
  52         struct hfi1_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 ATOMICACKETH_PRN "origdata %lld"
  70 #define ATOMICETH_PRN "vaddr 0x%llx rkey 0x%.8x sdata %lld cdata %lld"
  71
  72 #define OP(transport, op) IB_OPCODE_## transport ## _ ## op
  73
  74 static u64 ib_u64_get(__be32 *p)
  75 {
  76         return ((u64)be32_to_cpu(p[0]) << 32) | be32_to_cpu(p[1]);
  77 }
  78
  79 static const char *parse_syndrome(u8 syndrome)
  80 {
  81         switch (syndrome >> 5) {
  82         case 0:
  83                 return "ACK";
  84         case 1:
  85                 return "RNRNAK";
  86         case 3:
  87                 return "NAK";
  88         }
  89         return "";
  90 }
  91
  92 const char *parse_everbs_hdrs(
  93         struct trace_seq *p,
  94         u8 opcode,
  95         void *ehdrs)
  96 {
  97         union ib_ehdrs *eh = ehdrs;
  98         const char *ret = trace_seq_buffer_ptr(p);
  99
 100         switch (opcode) {
 101         /* imm */
 102         case OP(RC, SEND_LAST_WITH_IMMEDIATE):
 103         case OP(UC, SEND_LAST_WITH_IMMEDIATE):
 104         case OP(RC, SEND_ONLY_WITH_IMMEDIATE):
 105         case OP(UC, SEND_ONLY_WITH_IMMEDIATE):
 106         case OP(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 107         case OP(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 108                 trace_seq_printf(p, IMM_PRN,
 109                                  be32_to_cpu(eh->imm_data));
 110                 break;
 111         /* reth + imm */
 112         case OP(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 113         case OP(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 114                 trace_seq_printf(p, RETH_PRN " " IMM_PRN,
 115                                  (unsigned long long)ib_u64_get(
 116                                  (__be32 *)&eh->rc.reth.vaddr),
 117                                  be32_to_cpu(eh->rc.reth.rkey),
 118                                  be32_to_cpu(eh->rc.reth.length),
 119                                  be32_to_cpu(eh->rc.imm_data));
 120                 break;
 121         /* reth */
 122         case OP(RC, RDMA_READ_REQUEST):
 123         case OP(RC, RDMA_WRITE_FIRST):
 124         case OP(UC, RDMA_WRITE_FIRST):
 125         case OP(RC, RDMA_WRITE_ONLY):
 126         case OP(UC, RDMA_WRITE_ONLY):
 127                 trace_seq_printf(p, RETH_PRN,
 128                                  (unsigned long long)ib_u64_get(
 129                                  (__be32 *)&eh->rc.reth.vaddr),
 130                                  be32_to_cpu(eh->rc.reth.rkey),
 131                                  be32_to_cpu(eh->rc.reth.length));
 132                 break;
 133         case OP(RC, RDMA_READ_RESPONSE_FIRST):
 134         case OP(RC, RDMA_READ_RESPONSE_LAST):
 135         case OP(RC, RDMA_READ_RESPONSE_ONLY):
 136         case OP(RC, ACKNOWLEDGE):
 137                 trace_seq_printf(p, AETH_PRN, be32_to_cpu(eh->aeth) >> 24,
 138                                  parse_syndrome(be32_to_cpu(eh->aeth) >> 24),
 139                                  be32_to_cpu(eh->aeth) & HFI1_MSN_MASK);
 140                 break;
 141         /* aeth + atomicacketh */
 142         case OP(RC, ATOMIC_ACKNOWLEDGE):
 143                 trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN,
 144                                  be32_to_cpu(eh->at.aeth) >> 24,
 145                                  parse_syndrome(be32_to_cpu(eh->at.aeth) >> 24),
 146                                  be32_to_cpu(eh->at.aeth) & HFI1_MSN_MASK,
 147                                  (unsigned long long)
 148                                  ib_u64_get(eh->at.atomic_ack_eth));
 149                 break;
 150         /* atomiceth */
 151         case OP(RC, COMPARE_SWAP):
 152         case OP(RC, FETCH_ADD):
 153                 trace_seq_printf(p, ATOMICETH_PRN,
 154                                  (unsigned long long)ib_u64_get(
 155                                  eh->atomic_eth.vaddr),
 156                                  eh->atomic_eth.rkey,
 157                                  (unsigned long long)ib_u64_get(
 158                                  (__be32 *)&eh->atomic_eth.swap_data),
 159                                  (unsigned long long)ib_u64_get(
 160                                  (__be32 *)&eh->atomic_eth.compare_data));
 161                 break;
 162         /* deth */
 163         case OP(UD, SEND_ONLY):
 164         case OP(UD, SEND_ONLY_WITH_IMMEDIATE):
 165                 trace_seq_printf(p, DETH_PRN,
 166                                  be32_to_cpu(eh->ud.deth[0]),
 167                                  be32_to_cpu(eh->ud.deth[1]) & RVT_QPN_MASK);
 168                 break;
 169         }
 170         trace_seq_putc(p, 0);
 171         return ret;
 172 }
 173
 174 const char *parse_sdma_flags(
 175         struct trace_seq *p,
 176         u64 desc0, u64 desc1)
 177 {
 178         const char *ret = trace_seq_buffer_ptr(p);
 179         char flags[5] = { 'x', 'x', 'x', 'x', 0 };
 180
 181         flags[0] = (desc1 & SDMA_DESC1_INT_REQ_FLAG) ? 'I' : '-';
 182         flags[1] = (desc1 & SDMA_DESC1_HEAD_TO_HOST_FLAG) ?  'H' : '-';
 183         flags[2] = (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) ? 'F' : '-';
 184         flags[3] = (desc0 & SDMA_DESC0_LAST_DESC_FLAG) ? 'L' : '-';
 185         trace_seq_printf(p, "%s", flags);
 186         if (desc0 & SDMA_DESC0_FIRST_DESC_FLAG)
 187                 trace_seq_printf(p, " amode:%u aidx:%u alen:%u",
 188                                  (u8)((desc1 >> SDMA_DESC1_HEADER_MODE_SHIFT) &
 189                                       SDMA_DESC1_HEADER_MODE_MASK),
 190                                  (u8)((desc1 >> SDMA_DESC1_HEADER_INDEX_SHIFT) &
 191                                       SDMA_DESC1_HEADER_INDEX_MASK),
 192                                  (u8)((desc1 >> SDMA_DESC1_HEADER_DWS_SHIFT) &
 193                                       SDMA_DESC1_HEADER_DWS_MASK));
 194         return ret;
 195 }
 196
 197 const char *print_u32_array(
 198         struct trace_seq *p,
 199         u32 *arr, int len)
 200 {
 201         int i;
 202         const char *ret = trace_seq_buffer_ptr(p);
 203
 204         for (i = 0; i < len ; i++)
 205                 trace_seq_printf(p, "%s%#x", i == 0 ? "" : " ", arr[i]);
 206         trace_seq_putc(p, 0);
 207         return ret;
 208 }
 209
 210 const char *print_u64_array(
 211         struct trace_seq *p,
 212         u64 *arr, int len)
 213 {
 214         int i;
 215         const char *ret = trace_seq_buffer_ptr(p);
 216
 217         for (i = 0; i < len; i++)
 218                 trace_seq_printf(p, "%s0x%016llx", i == 0 ? "" : " ", arr[i]);
 219         trace_seq_putc(p, 0);
 220         return ret;
 221 }
 222
 223 __hfi1_trace_fn(PKT);
 224 __hfi1_trace_fn(PROC);
 225 __hfi1_trace_fn(SDMA);
 226 __hfi1_trace_fn(LINKVERB);
 227 __hfi1_trace_fn(DEBUG);
 228 __hfi1_trace_fn(SNOOP);
 229 __hfi1_trace_fn(CNTR);
 230 __hfi1_trace_fn(PIO);
 231 __hfi1_trace_fn(DC8051);
 232 __hfi1_trace_fn(FIRMWARE);
 233 __hfi1_trace_fn(RCVCTRL);
 234 __hfi1_trace_fn(TID);
 235 __hfi1_trace_fn(MMU);