xref: /openbmc/linux/drivers/infiniband/hw/hfi1/trace.c (revision ba61bb17)
1 /*
2  * Copyright(c) 2015 - 2018 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 = NULL;
67 	u8 opcode;
68 	u8 l4 = hfi1_16B_get_l4(hdr);
69 
70 	if (l4 == OPA_16B_L4_FM) {
71 		opcode = IB_OPCODE_UD_SEND_ONLY;
72 		return (8 + 8); /* No BTH */
73 	}
74 
75 	if (l4 == OPA_16B_L4_IB_LOCAL)
76 		ohdr = &hdr->u.oth;
77 	else
78 		ohdr = &hdr->u.l.oth;
79 
80 	opcode = ib_bth_get_opcode(ohdr);
81 	return hdr_len_by_opcode[opcode] == 0 ?
82 	       0 : hdr_len_by_opcode[opcode] - (12 + 8 + 8);
83 }
84 
85 u8 hfi1_trace_packet_hdr_len(struct hfi1_packet *packet)
86 {
87 	if (packet->etype != RHF_RCV_TYPE_BYPASS)
88 		return __get_ib_hdr_len(packet->hdr);
89 	else
90 		return __get_16b_hdr_len(packet->hdr);
91 }
92 
93 u8 hfi1_trace_opa_hdr_len(struct hfi1_opa_header *opa_hdr)
94 {
95 	if (!opa_hdr->hdr_type)
96 		return __get_ib_hdr_len(&opa_hdr->ibh);
97 	else
98 		return __get_16b_hdr_len(&opa_hdr->opah);
99 }
100 
101 const char *hfi1_trace_get_packet_l4_str(u8 l4)
102 {
103 	if (l4)
104 		return "16B";
105 	else
106 		return "9B";
107 }
108 
109 const char *hfi1_trace_get_packet_l2_str(u8 l2)
110 {
111 	switch (l2) {
112 	case 0:
113 		return "0";
114 	case 1:
115 		return "1";
116 	case 2:
117 		return "16B";
118 	case 3:
119 		return "9B";
120 	}
121 	return "";
122 }
123 
124 #define IMM_PRN  "imm:%d"
125 #define RETH_PRN "reth vaddr:0x%.16llx rkey:0x%.8x dlen:0x%.8x"
126 #define AETH_PRN "aeth syn:0x%.2x %s msn:0x%.8x"
127 #define DETH_PRN "deth qkey:0x%.8x sqpn:0x%.6x"
128 #define IETH_PRN "ieth rkey:0x%.8x"
129 #define ATOMICACKETH_PRN "origdata:%llx"
130 #define ATOMICETH_PRN "vaddr:0x%llx rkey:0x%.8x sdata:%llx cdata:%llx"
131 
132 #define OP(transport, op) IB_OPCODE_## transport ## _ ## op
133 
134 static const char *parse_syndrome(u8 syndrome)
135 {
136 	switch (syndrome >> 5) {
137 	case 0:
138 		return "ACK";
139 	case 1:
140 		return "RNRNAK";
141 	case 3:
142 		return "NAK";
143 	}
144 	return "";
145 }
146 
147 void hfi1_trace_parse_9b_bth(struct ib_other_headers *ohdr,
148 			     u8 *ack, bool *becn, bool *fecn, u8 *mig,
149 			     u8 *se, u8 *pad, u8 *opcode, u8 *tver,
150 			     u16 *pkey, u32 *psn, u32 *qpn)
151 {
152 	*ack = ib_bth_get_ackreq(ohdr);
153 	*becn = ib_bth_get_becn(ohdr);
154 	*fecn = ib_bth_get_fecn(ohdr);
155 	*mig = ib_bth_get_migreq(ohdr);
156 	*se = ib_bth_get_se(ohdr);
157 	*pad = ib_bth_get_pad(ohdr);
158 	*opcode = ib_bth_get_opcode(ohdr);
159 	*tver = ib_bth_get_tver(ohdr);
160 	*pkey = ib_bth_get_pkey(ohdr);
161 	*psn = mask_psn(ib_bth_get_psn(ohdr));
162 	*qpn = ib_bth_get_qpn(ohdr);
163 }
164 
165 void hfi1_trace_parse_16b_bth(struct ib_other_headers *ohdr,
166 			      u8 *ack, u8 *mig, u8 *opcode,
167 			      u8 *pad, u8 *se, u8 *tver,
168 			      u32 *psn, u32 *qpn)
169 {
170 	*ack = ib_bth_get_ackreq(ohdr);
171 	*mig = ib_bth_get_migreq(ohdr);
172 	*opcode = ib_bth_get_opcode(ohdr);
173 	*pad = ib_bth_get_pad(ohdr);
174 	*se = ib_bth_get_se(ohdr);
175 	*tver = ib_bth_get_tver(ohdr);
176 	*psn = mask_psn(ib_bth_get_psn(ohdr));
177 	*qpn = ib_bth_get_qpn(ohdr);
178 }
179 
180 void hfi1_trace_parse_9b_hdr(struct ib_header *hdr, bool sc5,
181 			     u8 *lnh, u8 *lver, u8 *sl, u8 *sc,
182 			     u16 *len, u32 *dlid, u32 *slid)
183 {
184 	*lnh = ib_get_lnh(hdr);
185 	*lver = ib_get_lver(hdr);
186 	*sl = ib_get_sl(hdr);
187 	*sc = ib_get_sc(hdr) | (sc5 << 4);
188 	*len = ib_get_len(hdr);
189 	*dlid = ib_get_dlid(hdr);
190 	*slid = ib_get_slid(hdr);
191 }
192 
193 void hfi1_trace_parse_16b_hdr(struct hfi1_16b_header *hdr,
194 			      u8 *age, bool *becn, bool *fecn,
195 			      u8 *l4, u8 *rc, u8 *sc,
196 			      u16 *entropy, u16 *len, u16 *pkey,
197 			      u32 *dlid, u32 *slid)
198 {
199 	*age = hfi1_16B_get_age(hdr);
200 	*becn = hfi1_16B_get_becn(hdr);
201 	*fecn = hfi1_16B_get_fecn(hdr);
202 	*l4 = hfi1_16B_get_l4(hdr);
203 	*rc = hfi1_16B_get_rc(hdr);
204 	*sc = hfi1_16B_get_sc(hdr);
205 	*entropy = hfi1_16B_get_entropy(hdr);
206 	*len = hfi1_16B_get_len(hdr);
207 	*pkey = hfi1_16B_get_pkey(hdr);
208 	*dlid = hfi1_16B_get_dlid(hdr);
209 	*slid = hfi1_16B_get_slid(hdr);
210 }
211 
212 #define LRH_PRN "len:%d sc:%d dlid:0x%.4x slid:0x%.4x "
213 #define LRH_9B_PRN "lnh:%d,%s lver:%d sl:%d"
214 #define LRH_16B_PRN "age:%d becn:%d fecn:%d l4:%d " \
215 		    "rc:%d sc:%d pkey:0x%.4x entropy:0x%.4x"
216 const char *hfi1_trace_fmt_lrh(struct trace_seq *p, bool bypass,
217 			       u8 age, bool becn, bool fecn, u8 l4,
218 			       u8 lnh, const char *lnh_name, u8 lver,
219 			       u8 rc, u8 sc, u8 sl, u16 entropy,
220 			       u16 len, u16 pkey, u32 dlid, u32 slid)
221 {
222 	const char *ret = trace_seq_buffer_ptr(p);
223 
224 	trace_seq_printf(p, LRH_PRN, len, sc, dlid, slid);
225 
226 	if (bypass)
227 		trace_seq_printf(p, LRH_16B_PRN,
228 				 age, becn, fecn, l4, rc, sc, pkey, entropy);
229 
230 	else
231 		trace_seq_printf(p, LRH_9B_PRN,
232 				 lnh, lnh_name, lver, sl);
233 	trace_seq_putc(p, 0);
234 
235 	return ret;
236 }
237 
238 #define BTH_9B_PRN \
239 	"op:0x%.2x,%s se:%d m:%d pad:%d tver:%d pkey:0x%.4x " \
240 	"f:%d b:%d qpn:0x%.6x a:%d psn:0x%.8x"
241 #define BTH_16B_PRN \
242 	"op:0x%.2x,%s se:%d m:%d pad:%d tver:%d " \
243 	"qpn:0x%.6x a:%d psn:0x%.8x"
244 #define L4_FM_16B_PRN \
245 	"op:0x%.2x,%s dest_qpn:0x%.6x src_qpn:0x%.6x"
246 const char *hfi1_trace_fmt_rest(struct trace_seq *p, bool bypass, u8 l4,
247 				u8 ack, bool becn, bool fecn, u8 mig,
248 				u8 se, u8 pad, u8 opcode, const char *opname,
249 				u8 tver, u16 pkey, u32 psn, u32 qpn,
250 				u32 dest_qpn, u32 src_qpn)
251 {
252 	const char *ret = trace_seq_buffer_ptr(p);
253 
254 	if (bypass)
255 		if (l4 == OPA_16B_L4_FM)
256 			trace_seq_printf(p, L4_FM_16B_PRN,
257 					 opcode, opname, dest_qpn, src_qpn);
258 		else
259 			trace_seq_printf(p, BTH_16B_PRN,
260 					 opcode, opname,
261 					 se, mig, pad, tver, qpn, ack, psn);
262 
263 	else
264 		trace_seq_printf(p, BTH_9B_PRN,
265 				 opcode, opname,
266 				 se, mig, pad, tver, pkey, fecn, becn,
267 				 qpn, ack, psn);
268 	trace_seq_putc(p, 0);
269 
270 	return ret;
271 }
272 
273 const char *parse_everbs_hdrs(
274 	struct trace_seq *p,
275 	u8 opcode, u8 l4, u32 dest_qpn, u32 src_qpn,
276 	void *ehdrs)
277 {
278 	union ib_ehdrs *eh = ehdrs;
279 	const char *ret = trace_seq_buffer_ptr(p);
280 
281 	if (l4 == OPA_16B_L4_FM) {
282 		trace_seq_printf(p, "mgmt pkt");
283 		goto out;
284 	}
285 
286 	switch (opcode) {
287 	/* imm */
288 	case OP(RC, SEND_LAST_WITH_IMMEDIATE):
289 	case OP(UC, SEND_LAST_WITH_IMMEDIATE):
290 	case OP(RC, SEND_ONLY_WITH_IMMEDIATE):
291 	case OP(UC, SEND_ONLY_WITH_IMMEDIATE):
292 	case OP(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
293 	case OP(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
294 		trace_seq_printf(p, IMM_PRN,
295 				 be32_to_cpu(eh->imm_data));
296 		break;
297 	/* reth + imm */
298 	case OP(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
299 	case OP(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
300 		trace_seq_printf(p, RETH_PRN " " IMM_PRN,
301 				 get_ib_reth_vaddr(&eh->rc.reth),
302 				 be32_to_cpu(eh->rc.reth.rkey),
303 				 be32_to_cpu(eh->rc.reth.length),
304 				 be32_to_cpu(eh->rc.imm_data));
305 		break;
306 	/* reth */
307 	case OP(RC, RDMA_READ_REQUEST):
308 	case OP(RC, RDMA_WRITE_FIRST):
309 	case OP(UC, RDMA_WRITE_FIRST):
310 	case OP(RC, RDMA_WRITE_ONLY):
311 	case OP(UC, RDMA_WRITE_ONLY):
312 		trace_seq_printf(p, RETH_PRN,
313 				 get_ib_reth_vaddr(&eh->rc.reth),
314 				 be32_to_cpu(eh->rc.reth.rkey),
315 				 be32_to_cpu(eh->rc.reth.length));
316 		break;
317 	case OP(RC, RDMA_READ_RESPONSE_FIRST):
318 	case OP(RC, RDMA_READ_RESPONSE_LAST):
319 	case OP(RC, RDMA_READ_RESPONSE_ONLY):
320 	case OP(RC, ACKNOWLEDGE):
321 		trace_seq_printf(p, AETH_PRN, be32_to_cpu(eh->aeth) >> 24,
322 				 parse_syndrome(be32_to_cpu(eh->aeth) >> 24),
323 				 be32_to_cpu(eh->aeth) & IB_MSN_MASK);
324 		break;
325 	/* aeth + atomicacketh */
326 	case OP(RC, ATOMIC_ACKNOWLEDGE):
327 		trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN,
328 				 be32_to_cpu(eh->at.aeth) >> 24,
329 				 parse_syndrome(be32_to_cpu(eh->at.aeth) >> 24),
330 				 be32_to_cpu(eh->at.aeth) & IB_MSN_MASK,
331 				 ib_u64_get(&eh->at.atomic_ack_eth));
332 		break;
333 	/* atomiceth */
334 	case OP(RC, COMPARE_SWAP):
335 	case OP(RC, FETCH_ADD):
336 		trace_seq_printf(p, ATOMICETH_PRN,
337 				 get_ib_ateth_vaddr(&eh->atomic_eth),
338 				 eh->atomic_eth.rkey,
339 				 get_ib_ateth_swap(&eh->atomic_eth),
340 				 get_ib_ateth_compare(&eh->atomic_eth));
341 		break;
342 	/* deth */
343 	case OP(UD, SEND_ONLY):
344 	case OP(UD, SEND_ONLY_WITH_IMMEDIATE):
345 		trace_seq_printf(p, DETH_PRN,
346 				 be32_to_cpu(eh->ud.deth[0]),
347 				 be32_to_cpu(eh->ud.deth[1]) & RVT_QPN_MASK);
348 		break;
349 	/* ieth */
350 	case OP(RC, SEND_LAST_WITH_INVALIDATE):
351 	case OP(RC, SEND_ONLY_WITH_INVALIDATE):
352 		trace_seq_printf(p, IETH_PRN,
353 				 be32_to_cpu(eh->ieth));
354 		break;
355 	}
356 out:
357 	trace_seq_putc(p, 0);
358 	return ret;
359 }
360 
361 const char *parse_sdma_flags(
362 	struct trace_seq *p,
363 	u64 desc0, u64 desc1)
364 {
365 	const char *ret = trace_seq_buffer_ptr(p);
366 	char flags[5] = { 'x', 'x', 'x', 'x', 0 };
367 
368 	flags[0] = (desc1 & SDMA_DESC1_INT_REQ_FLAG) ? 'I' : '-';
369 	flags[1] = (desc1 & SDMA_DESC1_HEAD_TO_HOST_FLAG) ?  'H' : '-';
370 	flags[2] = (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) ? 'F' : '-';
371 	flags[3] = (desc0 & SDMA_DESC0_LAST_DESC_FLAG) ? 'L' : '-';
372 	trace_seq_printf(p, "%s", flags);
373 	if (desc0 & SDMA_DESC0_FIRST_DESC_FLAG)
374 		trace_seq_printf(p, " amode:%u aidx:%u alen:%u",
375 				 (u8)((desc1 >> SDMA_DESC1_HEADER_MODE_SHIFT) &
376 				      SDMA_DESC1_HEADER_MODE_MASK),
377 				 (u8)((desc1 >> SDMA_DESC1_HEADER_INDEX_SHIFT) &
378 				      SDMA_DESC1_HEADER_INDEX_MASK),
379 				 (u8)((desc1 >> SDMA_DESC1_HEADER_DWS_SHIFT) &
380 				      SDMA_DESC1_HEADER_DWS_MASK));
381 	return ret;
382 }
383 
384 const char *print_u32_array(
385 	struct trace_seq *p,
386 	u32 *arr, int len)
387 {
388 	int i;
389 	const char *ret = trace_seq_buffer_ptr(p);
390 
391 	for (i = 0; i < len ; i++)
392 		trace_seq_printf(p, "%s%#x", i == 0 ? "" : " ", arr[i]);
393 	trace_seq_putc(p, 0);
394 	return ret;
395 }
396 
397 __hfi1_trace_fn(AFFINITY);
398 __hfi1_trace_fn(PKT);
399 __hfi1_trace_fn(PROC);
400 __hfi1_trace_fn(SDMA);
401 __hfi1_trace_fn(LINKVERB);
402 __hfi1_trace_fn(DEBUG);
403 __hfi1_trace_fn(SNOOP);
404 __hfi1_trace_fn(CNTR);
405 __hfi1_trace_fn(PIO);
406 __hfi1_trace_fn(DC8051);
407 __hfi1_trace_fn(FIRMWARE);
408 __hfi1_trace_fn(RCVCTRL);
409 __hfi1_trace_fn(TID);
410 __hfi1_trace_fn(MMU);
411 __hfi1_trace_fn(IOCTL);
412