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c105547501
- fix trace_hfi1_ctxt_info() to pass large struct by reference instead of by value
- convert 'type array[]' tracepoint arguments into 'type *array',
since compiler will warn that sizeof('type array[]') == sizeof('type *array')
and later should be used instead
The CAST_TO_U64 macro in the later patch will enforce that tracepoint
arguments can only be integers, pointers, or less than 8 byte structures.
Larger structures should be passed by reference.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
148 lines
5.3 KiB
C
148 lines
5.3 KiB
C
/*
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* Copyright(c) 2015, 2016 Intel Corporation.
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* BSD LICENSE
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* - Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#if !defined(__HFI1_TRACE_CTXTS_H) || defined(TRACE_HEADER_MULTI_READ)
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#define __HFI1_TRACE_CTXTS_H
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#include <linux/tracepoint.h>
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#include <linux/trace_seq.h>
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#include "hfi.h"
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM hfi1_ctxts
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#define UCTXT_FMT \
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"cred:%u, credaddr:0x%llx, piobase:0x%p, rcvhdr_cnt:%u, " \
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"rcvbase:0x%llx, rcvegrc:%u, rcvegrb:0x%llx, subctxt_cnt:%u"
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TRACE_EVENT(hfi1_uctxtdata,
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TP_PROTO(struct hfi1_devdata *dd, struct hfi1_ctxtdata *uctxt,
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unsigned int subctxt),
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TP_ARGS(dd, uctxt, subctxt),
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TP_STRUCT__entry(DD_DEV_ENTRY(dd)
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__field(unsigned int, ctxt)
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__field(unsigned int, subctxt)
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__field(u32, credits)
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__field(u64, hw_free)
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__field(void __iomem *, piobase)
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__field(u16, rcvhdrq_cnt)
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__field(u64, rcvhdrq_dma)
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__field(u32, eager_cnt)
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__field(u64, rcvegr_dma)
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__field(unsigned int, subctxt_cnt)
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),
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TP_fast_assign(DD_DEV_ASSIGN(dd);
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__entry->ctxt = uctxt->ctxt;
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__entry->subctxt = subctxt;
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__entry->credits = uctxt->sc->credits;
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__entry->hw_free = le64_to_cpu(*uctxt->sc->hw_free);
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__entry->piobase = uctxt->sc->base_addr;
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__entry->rcvhdrq_cnt = uctxt->rcvhdrq_cnt;
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__entry->rcvhdrq_dma = uctxt->rcvhdrq_dma;
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__entry->eager_cnt = uctxt->egrbufs.alloced;
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__entry->rcvegr_dma = uctxt->egrbufs.rcvtids[0].dma;
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__entry->subctxt_cnt = uctxt->subctxt_cnt;
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),
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TP_printk("[%s] ctxt %u:%u " UCTXT_FMT,
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__get_str(dev),
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__entry->ctxt,
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__entry->subctxt,
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__entry->credits,
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__entry->hw_free,
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__entry->piobase,
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__entry->rcvhdrq_cnt,
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__entry->rcvhdrq_dma,
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__entry->eager_cnt,
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__entry->rcvegr_dma,
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__entry->subctxt_cnt
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)
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);
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#define CINFO_FMT \
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"egrtids:%u, egr_size:%u, hdrq_cnt:%u, hdrq_size:%u, sdma_ring_size:%u"
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TRACE_EVENT(hfi1_ctxt_info,
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TP_PROTO(struct hfi1_devdata *dd, unsigned int ctxt,
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unsigned int subctxt,
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struct hfi1_ctxt_info *cinfo),
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TP_ARGS(dd, ctxt, subctxt, cinfo),
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TP_STRUCT__entry(DD_DEV_ENTRY(dd)
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__field(unsigned int, ctxt)
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__field(unsigned int, subctxt)
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__field(u16, egrtids)
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__field(u16, rcvhdrq_cnt)
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__field(u16, rcvhdrq_size)
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__field(u16, sdma_ring_size)
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__field(u32, rcvegr_size)
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),
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TP_fast_assign(DD_DEV_ASSIGN(dd);
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__entry->ctxt = ctxt;
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__entry->subctxt = subctxt;
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__entry->egrtids = cinfo->egrtids;
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__entry->rcvhdrq_cnt = cinfo->rcvhdrq_cnt;
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__entry->rcvhdrq_size = cinfo->rcvhdrq_entsize;
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__entry->sdma_ring_size = cinfo->sdma_ring_size;
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__entry->rcvegr_size = cinfo->rcvegr_size;
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),
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TP_printk("[%s] ctxt %u:%u " CINFO_FMT,
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__get_str(dev),
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__entry->ctxt,
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__entry->subctxt,
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__entry->egrtids,
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__entry->rcvegr_size,
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__entry->rcvhdrq_cnt,
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__entry->rcvhdrq_size,
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__entry->sdma_ring_size
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)
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);
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#endif /* __HFI1_TRACE_CTXTS_H */
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#undef TRACE_INCLUDE_PATH
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_PATH .
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#define TRACE_INCLUDE_FILE trace_ctxts
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#include <trace/define_trace.h>
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