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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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14fe13fcd3
SGEs that are contiguous needlessly consume driver dependent TX resources. The lkey validation logic is enhanced to compress the SGE that ends up in the send wqe when consecutive addresses are detected. The lkey validation API used to return 1 (success) or 0 (fail). The return value is now an -errno, 0 (compressed), or 1 (uncompressed). A additional argument is added to pass the last SQE for the compression. Loopback callers always pass a NULL to last_sge since the optimization is of little benefit in that situation. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
164 lines
5.7 KiB
C
164 lines
5.7 KiB
C
/*
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* Copyright(c) 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(__RVT_TRACE_TX_H) || defined(TRACE_HEADER_MULTI_READ)
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#define __RVT_TRACE_TX_H
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#include <linux/tracepoint.h>
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#include <linux/trace_seq.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/rdma_vt.h>
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM rvt_tx
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#define wr_opcode_name(opcode) { IB_WR_##opcode, #opcode }
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#define show_wr_opcode(opcode) \
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__print_symbolic(opcode, \
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wr_opcode_name(RDMA_WRITE), \
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wr_opcode_name(RDMA_WRITE_WITH_IMM), \
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wr_opcode_name(SEND), \
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wr_opcode_name(SEND_WITH_IMM), \
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wr_opcode_name(RDMA_READ), \
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wr_opcode_name(ATOMIC_CMP_AND_SWP), \
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wr_opcode_name(ATOMIC_FETCH_AND_ADD), \
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wr_opcode_name(LSO), \
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wr_opcode_name(SEND_WITH_INV), \
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wr_opcode_name(RDMA_READ_WITH_INV), \
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wr_opcode_name(LOCAL_INV), \
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wr_opcode_name(MASKED_ATOMIC_CMP_AND_SWP), \
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wr_opcode_name(MASKED_ATOMIC_FETCH_AND_ADD), \
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wr_opcode_name(RESERVED1), \
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wr_opcode_name(RESERVED2), \
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wr_opcode_name(RESERVED3), \
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wr_opcode_name(RESERVED4), \
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wr_opcode_name(RESERVED5), \
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wr_opcode_name(RESERVED6), \
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wr_opcode_name(RESERVED7), \
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wr_opcode_name(RESERVED8), \
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wr_opcode_name(RESERVED9), \
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wr_opcode_name(RESERVED10))
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#define POS_PRN \
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"[%s] wqe %p wr_id %llx send_flags %x qpn %x qpt %u psn %x lpsn %x ssn %x length %u opcode 0x%.2x,%s size %u avail %u head %u last %u pid %u num_sge %u wr_num_sge %u"
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TRACE_EVENT(
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rvt_post_one_wr,
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TP_PROTO(struct rvt_qp *qp, struct rvt_swqe *wqe, int wr_num_sge),
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TP_ARGS(qp, wqe, wr_num_sge),
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TP_STRUCT__entry(
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RDI_DEV_ENTRY(ib_to_rvt(qp->ibqp.device))
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__field(u64, wr_id)
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__field(struct rvt_swqe *, wqe)
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__field(u32, qpn)
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__field(u32, qpt)
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__field(u32, psn)
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__field(u32, lpsn)
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__field(u32, length)
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__field(u32, opcode)
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__field(u32, size)
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__field(u32, avail)
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__field(u32, head)
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__field(u32, last)
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__field(u32, ssn)
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__field(int, send_flags)
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__field(pid_t, pid)
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__field(int, num_sge)
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__field(int, wr_num_sge)
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),
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TP_fast_assign(
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RDI_DEV_ASSIGN(ib_to_rvt(qp->ibqp.device))
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__entry->wqe = wqe;
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__entry->wr_id = wqe->wr.wr_id;
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__entry->qpn = qp->ibqp.qp_num;
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__entry->qpt = qp->ibqp.qp_type;
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__entry->psn = wqe->psn;
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__entry->lpsn = wqe->lpsn;
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__entry->length = wqe->length;
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__entry->opcode = wqe->wr.opcode;
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__entry->size = qp->s_size;
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__entry->avail = qp->s_avail;
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__entry->head = qp->s_head;
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__entry->last = qp->s_last;
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__entry->pid = qp->pid;
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__entry->ssn = wqe->ssn;
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__entry->send_flags = wqe->wr.send_flags;
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__entry->num_sge = wqe->wr.num_sge;
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__entry->wr_num_sge = wr_num_sge;
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),
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TP_printk(
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POS_PRN,
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__get_str(dev),
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__entry->wqe,
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__entry->wr_id,
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__entry->send_flags,
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__entry->qpn,
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__entry->qpt,
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__entry->psn,
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__entry->lpsn,
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__entry->ssn,
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__entry->length,
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__entry->opcode, show_wr_opcode(__entry->opcode),
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__entry->size,
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__entry->avail,
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__entry->head,
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__entry->last,
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__entry->pid,
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__entry->num_sge,
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__entry->wr_num_sge
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)
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);
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#endif /* __RVT_TRACE_TX_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_tx
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#include <trace/define_trace.h>
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