drivers/infiniband/hw/hfi1/trace.c - linux-imx - Git at Google

 /*
  * Copyright(c) 2015, 2016 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
  *
  * GPL LICENSE SUMMARY
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
  * published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * General Public License for more details.
  *
  * BSD LICENSE
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  *  - Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *  - Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
  *  - Neither the name of Intel Corporation nor the names of its
  *    contributors may be used to endorse or promote products derived
  *    from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
 #define CREATE_TRACE_POINTS
 #include "trace.h"

 static u8 __get_ib_hdr_len(struct ib_header *hdr)
 {
 	struct ib_other_headers *ohdr;
 	u8 opcode;

 	if (ib_get_lnh(hdr) == HFI1_LRH_BTH)
 		ohdr = &hdr->u.oth;
 	else
 		ohdr = &hdr->u.l.oth;
 	opcode = ib_bth_get_opcode(ohdr);
 	return hdr_len_by_opcode[opcode] == 0 ?
 	       0 : hdr_len_by_opcode[opcode] - (12 + 8);
 }

 static u8 __get_16b_hdr_len(struct hfi1_16b_header *hdr)
 {
 	struct ib_other_headers *ohdr;
 	u8 opcode;

 	if (hfi1_16B_get_l4(hdr) == OPA_16B_L4_IB_LOCAL)
 		ohdr = &hdr->u.oth;
 	else
 		ohdr = &hdr->u.l.oth;
 	opcode = ib_bth_get_opcode(ohdr);
 	return hdr_len_by_opcode[opcode] == 0 ?
 	       0 : hdr_len_by_opcode[opcode] - (12 + 8 + 8);
 }

 u8 hfi1_trace_packet_hdr_len(struct hfi1_packet *packet)
 {
 	if (packet->etype != RHF_RCV_TYPE_BYPASS)
 		return __get_ib_hdr_len(packet->hdr);
 	else
 		return __get_16b_hdr_len(packet->hdr);
 }

 u8 hfi1_trace_opa_hdr_len(struct hfi1_opa_header *opa_hdr)
 {
 	if (!opa_hdr->hdr_type)
 		return __get_ib_hdr_len(&opa_hdr->ibh);
 	else
 		return __get_16b_hdr_len(&opa_hdr->opah);
 }

 const char *hfi1_trace_get_packet_str(struct hfi1_packet *packet)
 {
 	if (packet->etype != RHF_RCV_TYPE_BYPASS)
 		return "IB";

 	switch (hfi1_16B_get_l2(packet->hdr)) {
 	case 0:
 		return "0";
 	case 1:
 		return "1";
 	case 2:
 		return "16B";
 	case 3:
 		return "9B";
 	}
 	return "";
 }

 const char *hfi1_trace_get_packet_type_str(u8 l4)
 {
 	if (l4)
 		return "16B";
 	else
 		return "9B";
 }

 #define IMM_PRN  "imm:%d"
 #define RETH_PRN "reth vaddr:0x%.16llx rkey:0x%.8x dlen:0x%.8x"
 #define AETH_PRN "aeth syn:0x%.2x %s msn:0x%.8x"
 #define DETH_PRN "deth qkey:0x%.8x sqpn:0x%.6x"
 #define IETH_PRN "ieth rkey:0x%.8x"
 #define ATOMICACKETH_PRN "origdata:%llx"
 #define ATOMICETH_PRN "vaddr:0x%llx rkey:0x%.8x sdata:%llx cdata:%llx"

 #define OP(transport, op) IB_OPCODE_## transport ## _ ## op

 static const char *parse_syndrome(u8 syndrome)
 {
 	switch (syndrome >> 5) {
 	case 0:
 		return "ACK";
 	case 1:
 		return "RNRNAK";
 	case 3:
 		return "NAK";
 	}
 	return "";
 }

 void hfi1_trace_parse_9b_bth(struct ib_other_headers *ohdr,
 			     u8 *ack, u8 *becn, u8 *fecn, u8 *mig,
 			     u8 *se, u8 *pad, u8 *opcode, u8 *tver,
 			     u16 *pkey, u32 *psn, u32 *qpn)
 {
 	*ack = ib_bth_get_ackreq(ohdr);
 	*becn = ib_bth_get_becn(ohdr);
 	*fecn = ib_bth_get_fecn(ohdr);
 	*mig = ib_bth_get_migreq(ohdr);
 	*se = ib_bth_get_se(ohdr);
 	*pad = ib_bth_get_pad(ohdr);
 	*opcode = ib_bth_get_opcode(ohdr);
 	*tver = ib_bth_get_tver(ohdr);
 	*pkey = ib_bth_get_pkey(ohdr);
 	*psn = mask_psn(ib_bth_get_psn(ohdr));
 	*qpn = ib_bth_get_qpn(ohdr);
 }

 void hfi1_trace_parse_16b_bth(struct ib_other_headers *ohdr,
 			      u8 *ack, u8 *mig, u8 *opcode,
 			      u8 *pad, u8 *se, u8 *tver,
 			      u32 *psn, u32 *qpn)
 {
 	*ack = ib_bth_get_ackreq(ohdr);
 	*mig = ib_bth_get_migreq(ohdr);
 	*opcode = ib_bth_get_opcode(ohdr);
 	*pad = ib_bth_get_pad(ohdr);
 	*se = ib_bth_get_se(ohdr);
 	*tver = ib_bth_get_tver(ohdr);
 	*psn = mask_psn(ib_bth_get_psn(ohdr));
 	*qpn = ib_bth_get_qpn(ohdr);
 }

 void hfi1_trace_parse_9b_hdr(struct ib_header *hdr, bool sc5,
 			     u8 *lnh, u8 *lver, u8 *sl, u8 *sc,
 			     u16 *len, u32 *dlid, u32 *slid)
 {
 	*lnh = ib_get_lnh(hdr);
 	*lver = ib_get_lver(hdr);
 	*sl = ib_get_sl(hdr);
 	*sc = ib_get_sc(hdr) | (sc5 << 4);
 	*len = ib_get_len(hdr);
 	*dlid = ib_get_dlid(hdr);
 	*slid = ib_get_slid(hdr);
 }

 void hfi1_trace_parse_16b_hdr(struct hfi1_16b_header *hdr,
 			      u8 *age, u8 *becn, u8 *fecn,
 			      u8 *l4, u8 *rc, u8 *sc,
 			      u16 *entropy, u16 *len, u16 *pkey,
 			      u32 *dlid, u32 *slid)
 {
 	*age = hfi1_16B_get_age(hdr);
 	*becn = hfi1_16B_get_becn(hdr);
 	*fecn = hfi1_16B_get_fecn(hdr);
 	*l4 = hfi1_16B_get_l4(hdr);
 	*rc = hfi1_16B_get_rc(hdr);
 	*sc = hfi1_16B_get_sc(hdr);
 	*entropy = hfi1_16B_get_entropy(hdr);
 	*len = hfi1_16B_get_len(hdr);
 	*pkey = hfi1_16B_get_pkey(hdr);
 	*dlid = hfi1_16B_get_dlid(hdr);
 	*slid = hfi1_16B_get_slid(hdr);
 }

 #define LRH_PRN "len:%d sc:%d dlid:0x%.4x slid:0x%.4x "
 #define LRH_9B_PRN "lnh:%d,%s lver:%d sl:%d"
 #define LRH_16B_PRN "age:%d becn:%d fecn:%d l4:%d " \
 		    "rc:%d sc:%d pkey:0x%.4x entropy:0x%.4x"
 const char *hfi1_trace_fmt_lrh(struct trace_seq *p, bool bypass,
 			       u8 age, u8 becn, u8 fecn, u8 l4,
 			       u8 lnh, const char *lnh_name, u8 lver,
 			       u8 rc, u8 sc, u8 sl, u16 entropy,
 			       u16 len, u16 pkey, u32 dlid, u32 slid)
 {
 	const char *ret = trace_seq_buffer_ptr(p);

 	trace_seq_printf(p, LRH_PRN, len, sc, dlid, slid);

 	if (bypass)
 		trace_seq_printf(p, LRH_16B_PRN,
 				 age, becn, fecn, l4, rc, sc, pkey, entropy);

 	else
 		trace_seq_printf(p, LRH_9B_PRN,
 				 lnh, lnh_name, lver, sl);
 	trace_seq_putc(p, 0);

 	return ret;
 }

 #define BTH_9B_PRN \
 	"op:0x%.2x,%s se:%d m:%d pad:%d tver:%d pkey:0x%.4x " \
 	"f:%d b:%d qpn:0x%.6x a:%d psn:0x%.8x"
 #define BTH_16B_PRN \
 	"op:0x%.2x,%s se:%d m:%d pad:%d tver:%d " \
 	"qpn:0x%.6x a:%d psn:0x%.8x"
 const char *hfi1_trace_fmt_bth(struct trace_seq *p, bool bypass,
 			       u8 ack, u8 becn, u8 fecn, u8 mig,
 			       u8 se, u8 pad, u8 opcode, const char *opname,
 			       u8 tver, u16 pkey, u32 psn, u32 qpn)
 {
 	const char *ret = trace_seq_buffer_ptr(p);

 	if (bypass)
 		trace_seq_printf(p, BTH_16B_PRN,
 				 opcode, opname,
 				 se, mig, pad, tver, qpn, ack, psn);

 	else
 		trace_seq_printf(p, BTH_9B_PRN,
 				 opcode, opname,
 				 se, mig, pad, tver, pkey, fecn, becn,
 				 qpn, ack, psn);
 	trace_seq_putc(p, 0);

 	return ret;
 }

 const char *parse_everbs_hdrs(
 	struct trace_seq *p,
 	u8 opcode,
 	void *ehdrs)
 {
 	union ib_ehdrs *eh = ehdrs;
 	const char *ret = trace_seq_buffer_ptr(p);

 	switch (opcode) {
 	/* imm */
 	case OP(RC, SEND_LAST_WITH_IMMEDIATE):
 	case OP(UC, SEND_LAST_WITH_IMMEDIATE):
 	case OP(RC, SEND_ONLY_WITH_IMMEDIATE):
 	case OP(UC, SEND_ONLY_WITH_IMMEDIATE):
 	case OP(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 	case OP(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
 		trace_seq_printf(p, IMM_PRN,
 				 be32_to_cpu(eh->imm_data));
 		break;
 	/* reth + imm */
 	case OP(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 	case OP(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
 		trace_seq_printf(p, RETH_PRN " " IMM_PRN,
 				 get_ib_reth_vaddr(&eh->rc.reth),
 				 be32_to_cpu(eh->rc.reth.rkey),
 				 be32_to_cpu(eh->rc.reth.length),
 				 be32_to_cpu(eh->rc.imm_data));
 		break;
 	/* reth */
 	case OP(RC, RDMA_READ_REQUEST):
 	case OP(RC, RDMA_WRITE_FIRST):
 	case OP(UC, RDMA_WRITE_FIRST):
 	case OP(RC, RDMA_WRITE_ONLY):
 	case OP(UC, RDMA_WRITE_ONLY):
 		trace_seq_printf(p, RETH_PRN,
 				 get_ib_reth_vaddr(&eh->rc.reth),
 				 be32_to_cpu(eh->rc.reth.rkey),
 				 be32_to_cpu(eh->rc.reth.length));
 		break;
 	case OP(RC, RDMA_READ_RESPONSE_FIRST):
 	case OP(RC, RDMA_READ_RESPONSE_LAST):
 	case OP(RC, RDMA_READ_RESPONSE_ONLY):
 	case OP(RC, ACKNOWLEDGE):
 		trace_seq_printf(p, AETH_PRN, be32_to_cpu(eh->aeth) >> 24,
 				 parse_syndrome(be32_to_cpu(eh->aeth) >> 24),
 				 be32_to_cpu(eh->aeth) & IB_MSN_MASK);
 		break;
 	/* aeth + atomicacketh */
 	case OP(RC, ATOMIC_ACKNOWLEDGE):
 		trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN,
 				 be32_to_cpu(eh->at.aeth) >> 24,
 				 parse_syndrome(be32_to_cpu(eh->at.aeth) >> 24),
 				 be32_to_cpu(eh->at.aeth) & IB_MSN_MASK,
 				 ib_u64_get(&eh->at.atomic_ack_eth));
 		break;
 	/* atomiceth */
 	case OP(RC, COMPARE_SWAP):
 	case OP(RC, FETCH_ADD):
 		trace_seq_printf(p, ATOMICETH_PRN,
 				 get_ib_ateth_vaddr(&eh->atomic_eth),
 				 eh->atomic_eth.rkey,
 				 get_ib_ateth_swap(&eh->atomic_eth),
 				 get_ib_ateth_compare(&eh->atomic_eth));
 		break;
 	/* deth */
 	case OP(UD, SEND_ONLY):
 	case OP(UD, SEND_ONLY_WITH_IMMEDIATE):
 		trace_seq_printf(p, DETH_PRN,
 				 be32_to_cpu(eh->ud.deth[0]),
 				 be32_to_cpu(eh->ud.deth[1]) & RVT_QPN_MASK);
 		break;
 	/* ieth */
 	case OP(RC, SEND_LAST_WITH_INVALIDATE):
 	case OP(RC, SEND_ONLY_WITH_INVALIDATE):
 		trace_seq_printf(p, IETH_PRN,
 				 be32_to_cpu(eh->ieth));
 		break;
 	}
 	trace_seq_putc(p, 0);
 	return ret;
 }

 const char *parse_sdma_flags(
 	struct trace_seq *p,
 	u64 desc0, u64 desc1)
 {
 	const char *ret = trace_seq_buffer_ptr(p);
 	char flags[5] = { 'x', 'x', 'x', 'x', 0 };

 	flags[0] = (desc1 & SDMA_DESC1_INT_REQ_FLAG) ? 'I' : '-';
 	flags[1] = (desc1 & SDMA_DESC1_HEAD_TO_HOST_FLAG) ?  'H' : '-';
 	flags[2] = (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) ? 'F' : '-';
 	flags[3] = (desc0 & SDMA_DESC0_LAST_DESC_FLAG) ? 'L' : '-';
 	trace_seq_printf(p, "%s", flags);
 	if (desc0 & SDMA_DESC0_FIRST_DESC_FLAG)
 		trace_seq_printf(p, " amode:%u aidx:%u alen:%u",
 				 (u8)((desc1 >> SDMA_DESC1_HEADER_MODE_SHIFT) &
 				      SDMA_DESC1_HEADER_MODE_MASK),
 				 (u8)((desc1 >> SDMA_DESC1_HEADER_INDEX_SHIFT) &
 				      SDMA_DESC1_HEADER_INDEX_MASK),
 				 (u8)((desc1 >> SDMA_DESC1_HEADER_DWS_SHIFT) &
 				      SDMA_DESC1_HEADER_DWS_MASK));
 	return ret;
 }

 const char *print_u32_array(
 	struct trace_seq *p,
 	u32 *arr, int len)
 {
 	int i;
 	const char *ret = trace_seq_buffer_ptr(p);

 	for (i = 0; i < len ; i++)
 		trace_seq_printf(p, "%s%#x", i == 0 ? "" : " ", arr[i]);
 	trace_seq_putc(p, 0);
 	return ret;
 }

 __hfi1_trace_fn(PKT);
 __hfi1_trace_fn(PROC);
 __hfi1_trace_fn(SDMA);
 __hfi1_trace_fn(LINKVERB);
 __hfi1_trace_fn(DEBUG);
 __hfi1_trace_fn(SNOOP);
 __hfi1_trace_fn(CNTR);
 __hfi1_trace_fn(PIO);
 __hfi1_trace_fn(DC8051);
 __hfi1_trace_fn(FIRMWARE);
 __hfi1_trace_fn(RCVCTRL);
 __hfi1_trace_fn(TID);
 __hfi1_trace_fn(MMU);
 __hfi1_trace_fn(IOCTL);
	/*
	* Copyright(c) 2015, 2016 Intel Corporation.
	*
	* This file is provided under a dual BSD/GPLv2 license. When using or
	* redistributing this file, you may do so under either license.
	*
	* GPL LICENSE SUMMARY
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of version 2 of the GNU General Public License as
	* published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* General Public License for more details.
	*
	* BSD LICENSE
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	*
	* - Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* - Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in
	* the documentation and/or other materials provided with the
	* distribution.
	* - Neither the name of Intel Corporation nor the names of its
	* contributors may be used to endorse or promote products derived
	* from this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*
	*/
	#define CREATE_TRACE_POINTS
	#include "trace.h"

	static u8 __get_ib_hdr_len(struct ib_header *hdr)
	{
	struct ib_other_headers *ohdr;
	u8 opcode;

	if (ib_get_lnh(hdr) == HFI1_LRH_BTH)
	ohdr = &hdr->u.oth;
	else
	ohdr = &hdr->u.l.oth;
	opcode = ib_bth_get_opcode(ohdr);
	return hdr_len_by_opcode[opcode] == 0 ?
	0 : hdr_len_by_opcode[opcode] - (12 + 8);
	}

	static u8 __get_16b_hdr_len(struct hfi1_16b_header *hdr)
	{
	struct ib_other_headers *ohdr;
	u8 opcode;

	if (hfi1_16B_get_l4(hdr) == OPA_16B_L4_IB_LOCAL)
	ohdr = &hdr->u.oth;
	else
	ohdr = &hdr->u.l.oth;
	opcode = ib_bth_get_opcode(ohdr);
	return hdr_len_by_opcode[opcode] == 0 ?
	0 : hdr_len_by_opcode[opcode] - (12 + 8 + 8);
	}

	u8 hfi1_trace_packet_hdr_len(struct hfi1_packet *packet)
	{
	if (packet->etype != RHF_RCV_TYPE_BYPASS)
	return __get_ib_hdr_len(packet->hdr);
	else
	return __get_16b_hdr_len(packet->hdr);
	}

	u8 hfi1_trace_opa_hdr_len(struct hfi1_opa_header *opa_hdr)
	{
	if (!opa_hdr->hdr_type)
	return __get_ib_hdr_len(&opa_hdr->ibh);
	else
	return __get_16b_hdr_len(&opa_hdr->opah);
	}

	const char hfi1_trace_get_packet_str(struct hfi1_packet packet)
	{
	if (packet->etype != RHF_RCV_TYPE_BYPASS)
	return "IB";

	switch (hfi1_16B_get_l2(packet->hdr)) {
	case 0:
	return "0";
	case 1:
	return "1";
	case 2:
	return "16B";
	case 3:
	return "9B";
	}
	return "";
	}

	const char *hfi1_trace_get_packet_type_str(u8 l4)
	{
	if (l4)
	return "16B";
	else
	return "9B";
	}

	#define IMM_PRN "imm:%d"
	#define RETH_PRN "reth vaddr:0x%.16llx rkey:0x%.8x dlen:0x%.8x"
	#define AETH_PRN "aeth syn:0x%.2x %s msn:0x%.8x"
	#define DETH_PRN "deth qkey:0x%.8x sqpn:0x%.6x"
	#define IETH_PRN "ieth rkey:0x%.8x"
	#define ATOMICACKETH_PRN "origdata:%llx"
	#define ATOMICETH_PRN "vaddr:0x%llx rkey:0x%.8x sdata:%llx cdata:%llx"

	#define OP(transport, op) IB_OPCODE_## transport ## _ ## op

	static const char *parse_syndrome(u8 syndrome)
	{
	switch (syndrome >> 5) {
	case 0:
	return "ACK";
	case 1:
	return "RNRNAK";
	case 3:
	return "NAK";
	}
	return "";
	}

	void hfi1_trace_parse_9b_bth(struct ib_other_headers *ohdr,
	u8 ack, u8 becn, u8 fecn, u8 mig,
	u8 se, u8 pad, u8 opcode, u8 tver,
	u16 pkey, u32 psn, u32 *qpn)
	{
	*ack = ib_bth_get_ackreq(ohdr);
	*becn = ib_bth_get_becn(ohdr);
	*fecn = ib_bth_get_fecn(ohdr);
	*mig = ib_bth_get_migreq(ohdr);
	*se = ib_bth_get_se(ohdr);
	*pad = ib_bth_get_pad(ohdr);
	*opcode = ib_bth_get_opcode(ohdr);
	*tver = ib_bth_get_tver(ohdr);
	*pkey = ib_bth_get_pkey(ohdr);
	*psn = mask_psn(ib_bth_get_psn(ohdr));
	*qpn = ib_bth_get_qpn(ohdr);
	}

	void hfi1_trace_parse_16b_bth(struct ib_other_headers *ohdr,
	u8 ack, u8 mig, u8 *opcode,
	u8 pad, u8 se, u8 *tver,
	u32 psn, u32 qpn)
	{
	*ack = ib_bth_get_ackreq(ohdr);
	*mig = ib_bth_get_migreq(ohdr);
	*opcode = ib_bth_get_opcode(ohdr);
	*pad = ib_bth_get_pad(ohdr);
	*se = ib_bth_get_se(ohdr);
	*tver = ib_bth_get_tver(ohdr);
	*psn = mask_psn(ib_bth_get_psn(ohdr));
	*qpn = ib_bth_get_qpn(ohdr);
	}

	void hfi1_trace_parse_9b_hdr(struct ib_header *hdr, bool sc5,
	u8 lnh, u8 lver, u8 sl, u8 sc,
	u16 len, u32 dlid, u32 *slid)
	{
	*lnh = ib_get_lnh(hdr);
	*lver = ib_get_lver(hdr);
	*sl = ib_get_sl(hdr);
	*sc = ib_get_sc(hdr) \| (sc5 << 4);
	*len = ib_get_len(hdr);
	*dlid = ib_get_dlid(hdr);
	*slid = ib_get_slid(hdr);
	}

	void hfi1_trace_parse_16b_hdr(struct hfi1_16b_header *hdr,
	u8 age, u8 becn, u8 *fecn,
	u8 l4, u8 rc, u8 *sc,
	u16 entropy, u16 len, u16 *pkey,
	u32 dlid, u32 slid)
	{
	*age = hfi1_16B_get_age(hdr);
	*becn = hfi1_16B_get_becn(hdr);
	*fecn = hfi1_16B_get_fecn(hdr);
	*l4 = hfi1_16B_get_l4(hdr);
	*rc = hfi1_16B_get_rc(hdr);
	*sc = hfi1_16B_get_sc(hdr);
	*entropy = hfi1_16B_get_entropy(hdr);
	*len = hfi1_16B_get_len(hdr);
	*pkey = hfi1_16B_get_pkey(hdr);
	*dlid = hfi1_16B_get_dlid(hdr);
	*slid = hfi1_16B_get_slid(hdr);
	}

	#define LRH_PRN "len:%d sc:%d dlid:0x%.4x slid:0x%.4x "
	#define LRH_9B_PRN "lnh:%d,%s lver:%d sl:%d"
	#define LRH_16B_PRN "age:%d becn:%d fecn:%d l4:%d " \
	"rc:%d sc:%d pkey:0x%.4x entropy:0x%.4x"
	const char hfi1_trace_fmt_lrh(struct trace_seq p, bool bypass,
	u8 age, u8 becn, u8 fecn, u8 l4,
	u8 lnh, const char *lnh_name, u8 lver,
	u8 rc, u8 sc, u8 sl, u16 entropy,
	u16 len, u16 pkey, u32 dlid, u32 slid)
	{
	const char *ret = trace_seq_buffer_ptr(p);

	trace_seq_printf(p, LRH_PRN, len, sc, dlid, slid);

	if (bypass)
	trace_seq_printf(p, LRH_16B_PRN,
	age, becn, fecn, l4, rc, sc, pkey, entropy);

	else
	trace_seq_printf(p, LRH_9B_PRN,
	lnh, lnh_name, lver, sl);
	trace_seq_putc(p, 0);

	return ret;
	}

	#define BTH_9B_PRN \
	"op:0x%.2x,%s se:%d m:%d pad:%d tver:%d pkey:0x%.4x " \
	"f:%d b:%d qpn:0x%.6x a:%d psn:0x%.8x"
	#define BTH_16B_PRN \
	"op:0x%.2x,%s se:%d m:%d pad:%d tver:%d " \
	"qpn:0x%.6x a:%d psn:0x%.8x"
	const char hfi1_trace_fmt_bth(struct trace_seq p, bool bypass,
	u8 ack, u8 becn, u8 fecn, u8 mig,
	u8 se, u8 pad, u8 opcode, const char *opname,
	u8 tver, u16 pkey, u32 psn, u32 qpn)
	{
	const char *ret = trace_seq_buffer_ptr(p);

	if (bypass)
	trace_seq_printf(p, BTH_16B_PRN,
	opcode, opname,
	se, mig, pad, tver, qpn, ack, psn);

	else
	trace_seq_printf(p, BTH_9B_PRN,
	opcode, opname,
	se, mig, pad, tver, pkey, fecn, becn,
	qpn, ack, psn);
	trace_seq_putc(p, 0);

	return ret;
	}

	const char *parse_everbs_hdrs(
	struct trace_seq *p,
	u8 opcode,
	void *ehdrs)
	{
	union ib_ehdrs *eh = ehdrs;
	const char *ret = trace_seq_buffer_ptr(p);

	switch (opcode) {
	/* imm */
	case OP(RC, SEND_LAST_WITH_IMMEDIATE):
	case OP(UC, SEND_LAST_WITH_IMMEDIATE):
	case OP(RC, SEND_ONLY_WITH_IMMEDIATE):
	case OP(UC, SEND_ONLY_WITH_IMMEDIATE):
	case OP(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
	case OP(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE):
	trace_seq_printf(p, IMM_PRN,
	be32_to_cpu(eh->imm_data));
	break;
	/* reth + imm */
	case OP(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
	case OP(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE):
	trace_seq_printf(p, RETH_PRN " " IMM_PRN,
	get_ib_reth_vaddr(&eh->rc.reth),
	be32_to_cpu(eh->rc.reth.rkey),
	be32_to_cpu(eh->rc.reth.length),
	be32_to_cpu(eh->rc.imm_data));
	break;
	/* reth */
	case OP(RC, RDMA_READ_REQUEST):
	case OP(RC, RDMA_WRITE_FIRST):
	case OP(UC, RDMA_WRITE_FIRST):
	case OP(RC, RDMA_WRITE_ONLY):
	case OP(UC, RDMA_WRITE_ONLY):
	trace_seq_printf(p, RETH_PRN,
	get_ib_reth_vaddr(&eh->rc.reth),
	be32_to_cpu(eh->rc.reth.rkey),
	be32_to_cpu(eh->rc.reth.length));
	break;
	case OP(RC, RDMA_READ_RESPONSE_FIRST):
	case OP(RC, RDMA_READ_RESPONSE_LAST):
	case OP(RC, RDMA_READ_RESPONSE_ONLY):
	case OP(RC, ACKNOWLEDGE):
	trace_seq_printf(p, AETH_PRN, be32_to_cpu(eh->aeth) >> 24,
	parse_syndrome(be32_to_cpu(eh->aeth) >> 24),
	be32_to_cpu(eh->aeth) & IB_MSN_MASK);
	break;
	/* aeth + atomicacketh */
	case OP(RC, ATOMIC_ACKNOWLEDGE):
	trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN,
	be32_to_cpu(eh->at.aeth) >> 24,
	parse_syndrome(be32_to_cpu(eh->at.aeth) >> 24),
	be32_to_cpu(eh->at.aeth) & IB_MSN_MASK,
	ib_u64_get(&eh->at.atomic_ack_eth));
	break;
	/* atomiceth */
	case OP(RC, COMPARE_SWAP):
	case OP(RC, FETCH_ADD):
	trace_seq_printf(p, ATOMICETH_PRN,
	get_ib_ateth_vaddr(&eh->atomic_eth),
	eh->atomic_eth.rkey,
	get_ib_ateth_swap(&eh->atomic_eth),
	get_ib_ateth_compare(&eh->atomic_eth));
	break;
	/* deth */
	case OP(UD, SEND_ONLY):
	case OP(UD, SEND_ONLY_WITH_IMMEDIATE):
	trace_seq_printf(p, DETH_PRN,
	be32_to_cpu(eh->ud.deth[0]),
	be32_to_cpu(eh->ud.deth[1]) & RVT_QPN_MASK);
	break;
	/* ieth */
	case OP(RC, SEND_LAST_WITH_INVALIDATE):
	case OP(RC, SEND_ONLY_WITH_INVALIDATE):
	trace_seq_printf(p, IETH_PRN,
	be32_to_cpu(eh->ieth));
	break;
	}
	trace_seq_putc(p, 0);
	return ret;
	}

	const char *parse_sdma_flags(
	struct trace_seq *p,
	u64 desc0, u64 desc1)
	{
	const char *ret = trace_seq_buffer_ptr(p);
	char flags[5] = { 'x', 'x', 'x', 'x', 0 };

	flags[0] = (desc1 & SDMA_DESC1_INT_REQ_FLAG) ? 'I' : '-';
	flags[1] = (desc1 & SDMA_DESC1_HEAD_TO_HOST_FLAG) ? 'H' : '-';
	flags[2] = (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) ? 'F' : '-';
	flags[3] = (desc0 & SDMA_DESC0_LAST_DESC_FLAG) ? 'L' : '-';
	trace_seq_printf(p, "%s", flags);
	if (desc0 & SDMA_DESC0_FIRST_DESC_FLAG)
	trace_seq_printf(p, " amode:%u aidx:%u alen:%u",
	(u8)((desc1 >> SDMA_DESC1_HEADER_MODE_SHIFT) &
	SDMA_DESC1_HEADER_MODE_MASK),
	(u8)((desc1 >> SDMA_DESC1_HEADER_INDEX_SHIFT) &
	SDMA_DESC1_HEADER_INDEX_MASK),
	(u8)((desc1 >> SDMA_DESC1_HEADER_DWS_SHIFT) &
	SDMA_DESC1_HEADER_DWS_MASK));
	return ret;
	}

	const char *print_u32_array(
	struct trace_seq *p,
	u32 *arr, int len)
	{
	int i;
	const char *ret = trace_seq_buffer_ptr(p);

	for (i = 0; i < len ; i++)
	trace_seq_printf(p, "%s%#x", i == 0 ? "" : " ", arr[i]);
	trace_seq_putc(p, 0);
	return ret;
	}

	__hfi1_trace_fn(PKT);
	__hfi1_trace_fn(PROC);
	__hfi1_trace_fn(SDMA);
	__hfi1_trace_fn(LINKVERB);
	__hfi1_trace_fn(DEBUG);
	__hfi1_trace_fn(SNOOP);
	__hfi1_trace_fn(CNTR);
	__hfi1_trace_fn(PIO);
	__hfi1_trace_fn(DC8051);
	__hfi1_trace_fn(FIRMWARE);
	__hfi1_trace_fn(RCVCTRL);
	__hfi1_trace_fn(TID);
	__hfi1_trace_fn(MMU);
	__hfi1_trace_fn(IOCTL);