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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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01c7fc501b
This patch eliminate special cases by adding a fast_handler member to the receive context and changes to the fast handler as specified in the new variable. Initialize the variable as soon as the setting for dma tail is known when the context is created. Setting fast path is called every time when any context has entered slow path. Add function to check if contexts is using fast path and do not set fast path when it is already done to improve RCD fastpath setting. Link: https://lore.kernel.org/r/20200106134150.119356.87558.stgit@awfm-01.aw.intel.com Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com> Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
153 lines
5.1 KiB
C
153 lines
5.1 KiB
C
/*
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* Copyright(c) 2015 - 2018 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_RX_H) || defined(TRACE_HEADER_MULTI_READ)
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#define __HFI1_TRACE_RX_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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#define tidtype_name(type) { PT_##type, #type }
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#define show_tidtype(type) \
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__print_symbolic(type, \
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tidtype_name(EXPECTED), \
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tidtype_name(EAGER), \
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tidtype_name(INVALID)) \
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM hfi1_rx
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TRACE_EVENT(hfi1_rcvhdr,
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TP_PROTO(struct hfi1_packet *packet),
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TP_ARGS(packet),
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TP_STRUCT__entry(DD_DEV_ENTRY(packet->rcd->dd)
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__field(u64, eflags)
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__field(u32, ctxt)
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__field(u32, etype)
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__field(u32, hlen)
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__field(u32, tlen)
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__field(u32, updegr)
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__field(u32, etail)
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),
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TP_fast_assign(DD_DEV_ASSIGN(packet->rcd->dd);
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__entry->eflags = rhf_err_flags(packet->rhf);
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__entry->ctxt = packet->rcd->ctxt;
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__entry->etype = packet->etype;
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__entry->hlen = packet->hlen;
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__entry->tlen = packet->tlen;
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__entry->updegr = packet->updegr;
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__entry->etail = rhf_egr_index(packet->rhf);
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),
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TP_printk(
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"[%s] ctxt %d eflags 0x%llx etype %d,%s hlen %d tlen %d updegr %d etail %d",
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__get_str(dev),
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__entry->ctxt,
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__entry->eflags,
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__entry->etype, show_packettype(__entry->etype),
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__entry->hlen,
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__entry->tlen,
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__entry->updegr,
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__entry->etail
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)
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);
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TRACE_EVENT(hfi1_receive_interrupt,
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TP_PROTO(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd),
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TP_ARGS(dd, rcd),
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TP_STRUCT__entry(DD_DEV_ENTRY(dd)
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__field(u32, ctxt)
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__field(u8, slow_path)
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__field(u8, dma_rtail)
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),
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TP_fast_assign(DD_DEV_ASSIGN(dd);
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__entry->ctxt = rcd->ctxt;
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__entry->slow_path = hfi1_is_slowpath(rcd);
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__entry->dma_rtail = get_dma_rtail_setting(rcd);
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),
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TP_printk("[%s] ctxt %d SlowPath: %d DmaRtail: %d",
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__get_str(dev),
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__entry->ctxt,
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__entry->slow_path,
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__entry->dma_rtail
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)
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);
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TRACE_EVENT(hfi1_mmu_invalidate,
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TP_PROTO(unsigned int ctxt, u16 subctxt, const char *type,
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unsigned long start, unsigned long end),
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TP_ARGS(ctxt, subctxt, type, start, end),
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TP_STRUCT__entry(
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__field(unsigned int, ctxt)
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__field(u16, subctxt)
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__string(type, type)
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__field(unsigned long, start)
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__field(unsigned long, end)
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),
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TP_fast_assign(
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__entry->ctxt = ctxt;
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__entry->subctxt = subctxt;
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__assign_str(type, type);
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__entry->start = start;
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__entry->end = end;
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),
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TP_printk("[%3u:%02u] MMU Invalidate (%s) 0x%lx - 0x%lx",
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__entry->ctxt,
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__entry->subctxt,
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__get_str(type),
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__entry->start,
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__entry->end
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)
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);
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#endif /* __HFI1_TRACE_RX_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_rx
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#include <trace/define_trace.h>
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