kernel/drivers/staging/rdma/hfi1/trace.c

   1 /*
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2015 Intel Corporation.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * BSD LICENSE
  20  *
  21  * Copyright(c) 2015 Intel Corporation.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  *
  27  *  - Redistributions of source code must retain the above copyright
  28  *    notice, this list of conditions and the following disclaimer.
  29  *  - Redistributions in binary form must reproduce the above copyright
  30  *    notice, this list of conditions and the following disclaimer in
  31  *    the documentation and/or other materials provided with the
  32  *    distribution.
  33  *  - Neither the name of Intel Corporation nor the names of its
  34  *    contributors may be used to endorse or promote products derived
  35  *    from this software without specific prior written permission.
  36  *
  37  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  38  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  39  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  40  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  41  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  42  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  43  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  44  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  45  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  46  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  47  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  48  *
  49  */
  50 #define CREATE_TRACE_POINTS
  51 #include "trace.h"
  52
  53 u8 ibhdr_exhdr_len(struct hfi1_ib_header *hdr)
  54 {
  55         struct hfi1_other_headers *ohdr;
  56         u8 opcode;
  57         u8 lnh = (u8)(be16_to_cpu(hdr->lrh[0]) & 3);
  58
  59         if (lnh == HFI1_LRH_BTH)
  60                 ohdr = &hdr->u.oth;
  61         else
  62                 ohdr = &hdr->u.l.oth;
  63         opcode = be32_to_cpu(ohdr->bth[0]) >> 24;
  64         return hdr_len_by_opcode[opcode] == 0 ?
  65                0 : hdr_len_by_opcode[opcode] - (12 + 8);
  66 }
  67
  68 #define IMM_PRN  "imm %d"
  69 #define RETH_PRN "reth vaddr 0x%.16llx rkey 0x%.8x dlen 0x%.8x"
  70 #define AETH_PRN "aeth syn 0x%.2x msn 0x%.8x"
  71 #define DETH_PRN "deth qkey 0x%.8x sqpn 0x%.6x"
  72 #define ATOMICACKETH_PRN "origdata %lld"
  73 #define ATOMICETH_PRN "vaddr 0x%llx rkey 0x%.8x sdata %lld cdata %lld"
  74
  75 #define OP(transport, op) IB_OPCODE_## transport ## _ ## op
  76
  77 static u64 ib_u64_get(__be32 *p)
  78 {
  79         return ((u64)be32_to_cpu(p[0]) << 32) | be32_to_cpu(p[1]);
  80 }
  81
  82 const char *parse_everbs_hdrs(
  83         struct trace_seq *p,
  84         u8 opcode,
  85         void *ehdrs)
  86 {
  87         union ib_ehdrs *eh = ehdrs;
  88         const char *ret = trace_seq_buffer_ptr(p);
  89
  90         switch (opcode) {
  91         /* imm */
  92         case OP(RC, SEND_LAST_WITH_IMMEDIATE):
  93         case OP(UC, SEND_LAST_WITH_IMMEDIATE):
  94         case OP(RC, SEND_ONLY_WITH_IMMEDIATE):
  95         case OP(UC, SEND_ONLY_WITH_IMMEDIATE):
  96         case OP(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
  97         case OP(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
  98                 trace_seq_printf(p, IMM_PRN,
  99                         be32_to_cpu(eh->imm_data));
 100                 break;
 101         /* reth + imm */
 102         case OP(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 103         case OP(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 104                 trace_seq_printf(p, RETH_PRN " " IMM_PRN,
 105                         (unsigned long long)ib_u64_get(
 106                                 (__be32 *)&eh->rc.reth.vaddr),
 107                         be32_to_cpu(eh->rc.reth.rkey),
 108                         be32_to_cpu(eh->rc.reth.length),
 109                         be32_to_cpu(eh->rc.imm_data));
 110                 break;
 111         /* reth */
 112         case OP(RC, RDMA_READ_REQUEST):
 113         case OP(RC, RDMA_WRITE_FIRST):
 114         case OP(UC, RDMA_WRITE_FIRST):
 115         case OP(RC, RDMA_WRITE_ONLY):
 116         case OP(UC, RDMA_WRITE_ONLY):
 117                 trace_seq_printf(p, RETH_PRN,
 118                         (unsigned long long)ib_u64_get(
 119                                 (__be32 *)&eh->rc.reth.vaddr),
 120                         be32_to_cpu(eh->rc.reth.rkey),
 121                         be32_to_cpu(eh->rc.reth.length));
 122                 break;
 123         case OP(RC, RDMA_READ_RESPONSE_FIRST):
 124         case OP(RC, RDMA_READ_RESPONSE_LAST):
 125         case OP(RC, RDMA_READ_RESPONSE_ONLY):
 126         case OP(RC, ACKNOWLEDGE):
 127                 trace_seq_printf(p, AETH_PRN,
 128                         be32_to_cpu(eh->aeth) >> 24,
 129                         be32_to_cpu(eh->aeth) & HFI1_MSN_MASK);
 130                 break;
 131         /* aeth + atomicacketh */
 132         case OP(RC, ATOMIC_ACKNOWLEDGE):
 133                 trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN,
 134                         (be32_to_cpu(eh->at.aeth) >> 24) & 0xff,
 135                         be32_to_cpu(eh->at.aeth) & HFI1_MSN_MASK,
 136                         (unsigned long long)ib_u64_get(eh->at.atomic_ack_eth));
 137                 break;
 138         /* atomiceth */
 139         case OP(RC, COMPARE_SWAP):
 140         case OP(RC, FETCH_ADD):
 141                 trace_seq_printf(p, ATOMICETH_PRN,
 142                         (unsigned long long)ib_u64_get(eh->atomic_eth.vaddr),
 143                         eh->atomic_eth.rkey,
 144                         (unsigned long long)ib_u64_get(
 145                                 (__be32 *)&eh->atomic_eth.swap_data),
 146                         (unsigned long long) ib_u64_get(
 147                                  (__be32 *)&eh->atomic_eth.compare_data));
 148                 break;
 149         /* deth */
 150         case OP(UD, SEND_ONLY):
 151         case OP(UD, SEND_ONLY_WITH_IMMEDIATE):
 152                 trace_seq_printf(p, DETH_PRN,
 153                         be32_to_cpu(eh->ud.deth[0]),
 154                         be32_to_cpu(eh->ud.deth[1]) & HFI1_QPN_MASK);
 155                 break;
 156         }
 157         trace_seq_putc(p, 0);
 158         return ret;
 159 }
 160
 161 const char *parse_sdma_flags(
 162         struct trace_seq *p,
 163         u64 desc0, u64 desc1)
 164 {
 165         const char *ret = trace_seq_buffer_ptr(p);
 166         char flags[5] = { 'x', 'x', 'x', 'x', 0 };
 167
 168         flags[0] = (desc1 & SDMA_DESC1_INT_REQ_FLAG) ? 'I' : '-';
 169         flags[1] = (desc1 & SDMA_DESC1_HEAD_TO_HOST_FLAG) ?  'H' : '-';
 170         flags[2] = (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) ? 'F' : '-';
 171         flags[3] = (desc0 & SDMA_DESC0_LAST_DESC_FLAG) ? 'L' : '-';
 172         trace_seq_printf(p, "%s", flags);
 173         if (desc0 & SDMA_DESC0_FIRST_DESC_FLAG)
 174                 trace_seq_printf(p, " amode:%u aidx:%u alen:%u",
 175                         (u8)((desc1 >> SDMA_DESC1_HEADER_MODE_SHIFT)
 176                                 & SDMA_DESC1_HEADER_MODE_MASK),
 177                         (u8)((desc1 >> SDMA_DESC1_HEADER_INDEX_SHIFT)
 178                                 & SDMA_DESC1_HEADER_INDEX_MASK),
 179                         (u8)((desc1 >> SDMA_DESC1_HEADER_DWS_SHIFT)
 180                                 & SDMA_DESC1_HEADER_DWS_MASK));
 181         return ret;
 182 }
 183
 184 const char *print_u32_array(
 185         struct trace_seq *p,
 186         u32 *arr, int len)
 187 {
 188         int i;
 189         const char *ret = trace_seq_buffer_ptr(p);
 190
 191         for (i = 0; i < len ; i++)
 192                 trace_seq_printf(p, "%s%#x", i == 0 ? "" : " ", arr[i]);
 193         trace_seq_putc(p, 0);
 194         return ret;
 195 }
 196
 197 const char *print_u64_array(
 198         struct trace_seq *p,
 199         u64 *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, "%s0x%016llx", i == 0 ? "" : " ", arr[i]);
 206         trace_seq_putc(p, 0);
 207         return ret;
 208 }
 209
 210 __hfi1_trace_fn(PKT);
 211 __hfi1_trace_fn(PROC);
 212 __hfi1_trace_fn(SDMA);
 213 __hfi1_trace_fn(LINKVERB);
 214 __hfi1_trace_fn(DEBUG);
 215 __hfi1_trace_fn(SNOOP);
 216 __hfi1_trace_fn(CNTR);
 217 __hfi1_trace_fn(PIO);
 218 __hfi1_trace_fn(DC8051);
 219 __hfi1_trace_fn(FIRMWARE);
 220 __hfi1_trace_fn(RCVCTRL);
 221 __hfi1_trace_fn(TID);