xref: /openbmc/linux/drivers/infiniband/hw/hfi1/trace.c (revision b78412b8)
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 static u8 __get_ib_hdr_len(struct ib_header *hdr)
51 {
52 	struct ib_other_headers *ohdr;
53 	u8 opcode;
54 
55 	if (ib_get_lnh(hdr) == HFI1_LRH_BTH)
56 		ohdr = &hdr->u.oth;
57 	else
58 		ohdr = &hdr->u.l.oth;
59 	opcode = ib_bth_get_opcode(ohdr);
60 	return hdr_len_by_opcode[opcode] == 0 ?
61 	       0 : hdr_len_by_opcode[opcode] - (12 + 8);
62 }
63 
64 static u8 __get_16b_hdr_len(struct hfi1_16b_header *hdr)
65 {
66 	struct ib_other_headers *ohdr;
67 	u8 opcode;
68 
69 	if (hfi1_16B_get_l4(hdr) == OPA_16B_L4_IB_LOCAL)
70 		ohdr = &hdr->u.oth;
71 	else
72 		ohdr = &hdr->u.l.oth;
73 	opcode = ib_bth_get_opcode(ohdr);
74 	return hdr_len_by_opcode[opcode] == 0 ?
75 	       0 : hdr_len_by_opcode[opcode] - (12 + 8 + 8);
76 }
77 
78 u8 hfi1_trace_packet_hdr_len(struct hfi1_packet *packet)
79 {
80 	if (packet->etype != RHF_RCV_TYPE_BYPASS)
81 		return __get_ib_hdr_len(packet->hdr);
82 	else
83 		return __get_16b_hdr_len(packet->hdr);
84 }
85 
86 u8 hfi1_trace_opa_hdr_len(struct hfi1_opa_header *opa_hdr)
87 {
88 	if (!opa_hdr->hdr_type)
89 		return __get_ib_hdr_len(&opa_hdr->ibh);
90 	else
91 		return __get_16b_hdr_len(&opa_hdr->opah);
92 }
93 
94 const char *hfi1_trace_get_packet_str(struct hfi1_packet *packet)
95 {
96 	if (packet->etype != RHF_RCV_TYPE_BYPASS)
97 		return "IB";
98 
99 	switch (hfi1_16B_get_l2(packet->hdr)) {
100 	case 0:
101 		return "0";
102 	case 1:
103 		return "1";
104 	case 2:
105 		return "16B";
106 	case 3:
107 		return "9B";
108 	}
109 	return "";
110 }
111 
112 const char *hfi1_trace_get_packet_type_str(u8 l4)
113 {
114 	if (l4)
115 		return "16B";
116 	else
117 		return "9B";
118 }
119 
120 #define IMM_PRN  "imm:%d"
121 #define RETH_PRN "reth vaddr:0x%.16llx rkey:0x%.8x dlen:0x%.8x"
122 #define AETH_PRN "aeth syn:0x%.2x %s msn:0x%.8x"
123 #define DETH_PRN "deth qkey:0x%.8x sqpn:0x%.6x"
124 #define IETH_PRN "ieth rkey:0x%.8x"
125 #define ATOMICACKETH_PRN "origdata:%llx"
126 #define ATOMICETH_PRN "vaddr:0x%llx rkey:0x%.8x sdata:%llx cdata:%llx"
127 
128 #define OP(transport, op) IB_OPCODE_## transport ## _ ## op
129 
130 static const char *parse_syndrome(u8 syndrome)
131 {
132 	switch (syndrome >> 5) {
133 	case 0:
134 		return "ACK";
135 	case 1:
136 		return "RNRNAK";
137 	case 3:
138 		return "NAK";
139 	}
140 	return "";
141 }
142 
143 void hfi1_trace_parse_9b_bth(struct ib_other_headers *ohdr,
144 			     u8 *ack, u8 *becn, u8 *fecn, u8 *mig,
145 			     u8 *se, u8 *pad, u8 *opcode, u8 *tver,
146 			     u16 *pkey, u32 *psn, u32 *qpn)
147 {
148 	*ack = ib_bth_get_ackreq(ohdr);
149 	*becn = ib_bth_get_becn(ohdr);
150 	*fecn = ib_bth_get_fecn(ohdr);
151 	*mig = ib_bth_get_migreq(ohdr);
152 	*se = ib_bth_get_se(ohdr);
153 	*pad = ib_bth_get_pad(ohdr);
154 	*opcode = ib_bth_get_opcode(ohdr);
155 	*tver = ib_bth_get_tver(ohdr);
156 	*pkey = ib_bth_get_pkey(ohdr);
157 	*psn = ib_bth_get_psn(ohdr);
158 	*qpn = ib_bth_get_qpn(ohdr);
159 }
160 
161 void hfi1_trace_parse_16b_bth(struct ib_other_headers *ohdr,
162 			      u8 *ack, u8 *mig, u8 *opcode,
163 			      u8 *pad, u8 *se, u8 *tver,
164 			      u32 *psn, u32 *qpn)
165 {
166 	*ack = ib_bth_get_ackreq(ohdr);
167 	*mig = ib_bth_get_migreq(ohdr);
168 	*opcode = ib_bth_get_opcode(ohdr);
169 	*pad = ib_bth_get_pad(ohdr);
170 	*se = ib_bth_get_se(ohdr);
171 	*tver = ib_bth_get_tver(ohdr);
172 	*psn = ib_bth_get_psn(ohdr);
173 	*qpn = ib_bth_get_qpn(ohdr);
174 }
175 
176 void hfi1_trace_parse_9b_hdr(struct ib_header *hdr, bool sc5,
177 			     u8 *lnh, u8 *lver, u8 *sl, u8 *sc,
178 			     u16 *len, u32 *dlid, u32 *slid)
179 {
180 	*lnh = ib_get_lnh(hdr);
181 	*lver = ib_get_lver(hdr);
182 	*sl = ib_get_sl(hdr);
183 	*sc = ib_get_sc(hdr) | (sc5 << 4);
184 	*len = ib_get_len(hdr);
185 	*dlid = ib_get_dlid(hdr);
186 	*slid = ib_get_slid(hdr);
187 }
188 
189 void hfi1_trace_parse_16b_hdr(struct hfi1_16b_header *hdr,
190 			      u8 *age, u8 *becn, u8 *fecn,
191 			      u8 *l4, u8 *rc, u8 *sc,
192 			      u16 *entropy, u16 *len, u16 *pkey,
193 			      u32 *dlid, u32 *slid)
194 {
195 	*age = hfi1_16B_get_age(hdr);
196 	*becn = hfi1_16B_get_becn(hdr);
197 	*fecn = hfi1_16B_get_fecn(hdr);
198 	*l4 = hfi1_16B_get_l4(hdr);
199 	*rc = hfi1_16B_get_rc(hdr);
200 	*sc = hfi1_16B_get_sc(hdr);
201 	*entropy = hfi1_16B_get_entropy(hdr);
202 	*len = hfi1_16B_get_len(hdr);
203 	*pkey = hfi1_16B_get_pkey(hdr);
204 	*dlid = hfi1_16B_get_dlid(hdr);
205 	*slid = hfi1_16B_get_slid(hdr);
206 }
207 
208 #define LRH_PRN "len:%d sc:%d dlid:0x%.4x slid:0x%.4x "
209 #define LRH_9B_PRN "lnh:%d,%s lver:%d sl:%d"
210 #define LRH_16B_PRN "age:%d becn:%d fecn:%d l4:%d " \
211 		    "rc:%d sc:%d pkey:0x%.4x entropy:0x%.4x"
212 const char *hfi1_trace_fmt_lrh(struct trace_seq *p, bool bypass,
213 			       u8 age, u8 becn, u8 fecn, u8 l4,
214 			       u8 lnh, const char *lnh_name, u8 lver,
215 			       u8 rc, u8 sc, u8 sl, u16 entropy,
216 			       u16 len, u16 pkey, u32 dlid, u32 slid)
217 {
218 	const char *ret = trace_seq_buffer_ptr(p);
219 
220 	trace_seq_printf(p, LRH_PRN, len, sc, dlid, slid);
221 
222 	if (bypass)
223 		trace_seq_printf(p, LRH_16B_PRN,
224 				 age, becn, fecn, l4, rc, sc, pkey, entropy);
225 
226 	else
227 		trace_seq_printf(p, LRH_9B_PRN,
228 				 lnh, lnh_name, lver, sl);
229 	trace_seq_putc(p, 0);
230 
231 	return ret;
232 }
233 
234 #define BTH_9B_PRN \
235 	"op:0x%.2x,%s se:%d m:%d pad:%d tver:%d pkey:0x%.4x " \
236 	"f:%d b:%d qpn:0x%.6x a:%d psn:0x%.8x"
237 #define BTH_16B_PRN \
238 	"op:0x%.2x,%s se:%d m:%d pad:%d tver:%d " \
239 	"qpn:0x%.6x a:%d psn:0x%.8x"
240 const char *hfi1_trace_fmt_bth(struct trace_seq *p, bool bypass,
241 			       u8 ack, u8 becn, u8 fecn, u8 mig,
242 			       u8 se, u8 pad, u8 opcode, const char *opname,
243 			       u8 tver, u16 pkey, u32 psn, u32 qpn)
244 {
245 	const char *ret = trace_seq_buffer_ptr(p);
246 
247 	if (bypass)
248 		trace_seq_printf(p, BTH_16B_PRN,
249 				 opcode, opname,
250 				 se, mig, pad, tver, qpn, ack, psn);
251 
252 	else
253 		trace_seq_printf(p, BTH_9B_PRN,
254 				 opcode, opname,
255 				 se, mig, pad, tver, pkey, fecn, becn,
256 				 qpn, ack, psn);
257 	trace_seq_putc(p, 0);
258 
259 	return ret;
260 }
261 
262 const char *parse_everbs_hdrs(
263 	struct trace_seq *p,
264 	u8 opcode,
265 	void *ehdrs)
266 {
267 	union ib_ehdrs *eh = ehdrs;
268 	const char *ret = trace_seq_buffer_ptr(p);
269 
270 	switch (opcode) {
271 	/* imm */
272 	case OP(RC, SEND_LAST_WITH_IMMEDIATE):
273 	case OP(UC, SEND_LAST_WITH_IMMEDIATE):
274 	case OP(RC, SEND_ONLY_WITH_IMMEDIATE):
275 	case OP(UC, SEND_ONLY_WITH_IMMEDIATE):
276 	case OP(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
277 	case OP(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
278 		trace_seq_printf(p, IMM_PRN,
279 				 be32_to_cpu(eh->imm_data));
280 		break;
281 	/* reth + imm */
282 	case OP(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
283 	case OP(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
284 		trace_seq_printf(p, RETH_PRN " " IMM_PRN,
285 				 get_ib_reth_vaddr(&eh->rc.reth),
286 				 be32_to_cpu(eh->rc.reth.rkey),
287 				 be32_to_cpu(eh->rc.reth.length),
288 				 be32_to_cpu(eh->rc.imm_data));
289 		break;
290 	/* reth */
291 	case OP(RC, RDMA_READ_REQUEST):
292 	case OP(RC, RDMA_WRITE_FIRST):
293 	case OP(UC, RDMA_WRITE_FIRST):
294 	case OP(RC, RDMA_WRITE_ONLY):
295 	case OP(UC, RDMA_WRITE_ONLY):
296 		trace_seq_printf(p, RETH_PRN,
297 				 get_ib_reth_vaddr(&eh->rc.reth),
298 				 be32_to_cpu(eh->rc.reth.rkey),
299 				 be32_to_cpu(eh->rc.reth.length));
300 		break;
301 	case OP(RC, RDMA_READ_RESPONSE_FIRST):
302 	case OP(RC, RDMA_READ_RESPONSE_LAST):
303 	case OP(RC, RDMA_READ_RESPONSE_ONLY):
304 	case OP(RC, ACKNOWLEDGE):
305 		trace_seq_printf(p, AETH_PRN, be32_to_cpu(eh->aeth) >> 24,
306 				 parse_syndrome(be32_to_cpu(eh->aeth) >> 24),
307 				 be32_to_cpu(eh->aeth) & IB_MSN_MASK);
308 		break;
309 	/* aeth + atomicacketh */
310 	case OP(RC, ATOMIC_ACKNOWLEDGE):
311 		trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN,
312 				 be32_to_cpu(eh->at.aeth) >> 24,
313 				 parse_syndrome(be32_to_cpu(eh->at.aeth) >> 24),
314 				 be32_to_cpu(eh->at.aeth) & IB_MSN_MASK,
315 				 ib_u64_get(&eh->at.atomic_ack_eth));
316 		break;
317 	/* atomiceth */
318 	case OP(RC, COMPARE_SWAP):
319 	case OP(RC, FETCH_ADD):
320 		trace_seq_printf(p, ATOMICETH_PRN,
321 				 get_ib_ateth_vaddr(&eh->atomic_eth),
322 				 eh->atomic_eth.rkey,
323 				 get_ib_ateth_swap(&eh->atomic_eth),
324 				 get_ib_ateth_compare(&eh->atomic_eth));
325 		break;
326 	/* deth */
327 	case OP(UD, SEND_ONLY):
328 	case OP(UD, SEND_ONLY_WITH_IMMEDIATE):
329 		trace_seq_printf(p, DETH_PRN,
330 				 be32_to_cpu(eh->ud.deth[0]),
331 				 be32_to_cpu(eh->ud.deth[1]) & RVT_QPN_MASK);
332 		break;
333 	/* ieth */
334 	case OP(RC, SEND_LAST_WITH_INVALIDATE):
335 	case OP(RC, SEND_ONLY_WITH_INVALIDATE):
336 		trace_seq_printf(p, IETH_PRN,
337 				 be32_to_cpu(eh->ieth));
338 		break;
339 	}
340 	trace_seq_putc(p, 0);
341 	return ret;
342 }
343 
344 const char *parse_sdma_flags(
345 	struct trace_seq *p,
346 	u64 desc0, u64 desc1)
347 {
348 	const char *ret = trace_seq_buffer_ptr(p);
349 	char flags[5] = { 'x', 'x', 'x', 'x', 0 };
350 
351 	flags[0] = (desc1 & SDMA_DESC1_INT_REQ_FLAG) ? 'I' : '-';
352 	flags[1] = (desc1 & SDMA_DESC1_HEAD_TO_HOST_FLAG) ?  'H' : '-';
353 	flags[2] = (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) ? 'F' : '-';
354 	flags[3] = (desc0 & SDMA_DESC0_LAST_DESC_FLAG) ? 'L' : '-';
355 	trace_seq_printf(p, "%s", flags);
356 	if (desc0 & SDMA_DESC0_FIRST_DESC_FLAG)
357 		trace_seq_printf(p, " amode:%u aidx:%u alen:%u",
358 				 (u8)((desc1 >> SDMA_DESC1_HEADER_MODE_SHIFT) &
359 				      SDMA_DESC1_HEADER_MODE_MASK),
360 				 (u8)((desc1 >> SDMA_DESC1_HEADER_INDEX_SHIFT) &
361 				      SDMA_DESC1_HEADER_INDEX_MASK),
362 				 (u8)((desc1 >> SDMA_DESC1_HEADER_DWS_SHIFT) &
363 				      SDMA_DESC1_HEADER_DWS_MASK));
364 	return ret;
365 }
366 
367 const char *print_u32_array(
368 	struct trace_seq *p,
369 	u32 *arr, int len)
370 {
371 	int i;
372 	const char *ret = trace_seq_buffer_ptr(p);
373 
374 	for (i = 0; i < len ; i++)
375 		trace_seq_printf(p, "%s%#x", i == 0 ? "" : " ", arr[i]);
376 	trace_seq_putc(p, 0);
377 	return ret;
378 }
379 
380 __hfi1_trace_fn(PKT);
381 __hfi1_trace_fn(PROC);
382 __hfi1_trace_fn(SDMA);
383 __hfi1_trace_fn(LINKVERB);
384 __hfi1_trace_fn(DEBUG);
385 __hfi1_trace_fn(SNOOP);
386 __hfi1_trace_fn(CNTR);
387 __hfi1_trace_fn(PIO);
388 __hfi1_trace_fn(DC8051);
389 __hfi1_trace_fn(FIRMWARE);
390 __hfi1_trace_fn(RCVCTRL);
391 __hfi1_trace_fn(TID);
392 __hfi1_trace_fn(MMU);
393 __hfi1_trace_fn(IOCTL);
394