GNU Linux-libre 4.9.287-gnu1
[releases.git] / 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);