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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e509be898d
The send DMA hardware queue voided a number of prior assumptions about when a send is complete which led to completions being generated out of order. There were also a number of locking issues when switching the QP to the error or reset states, and we implement the IB_QPS_SQD state. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
53 lines
2.1 KiB
C
53 lines
2.1 KiB
C
/*
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* Copyright (c) 2007, 2008 QLogic Corporation. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/device.h>
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struct ipath_user_sdma_queue;
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struct ipath_user_sdma_queue *
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ipath_user_sdma_queue_create(struct device *dev, int unit, int port, int sport);
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void ipath_user_sdma_queue_destroy(struct ipath_user_sdma_queue *pq);
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int ipath_user_sdma_writev(struct ipath_devdata *dd,
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struct ipath_user_sdma_queue *pq,
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const struct iovec *iov,
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unsigned long dim);
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int ipath_user_sdma_make_progress(struct ipath_devdata *dd,
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struct ipath_user_sdma_queue *pq);
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void ipath_user_sdma_queue_drain(struct ipath_devdata *dd,
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struct ipath_user_sdma_queue *pq);
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u32 ipath_user_sdma_complete_counter(const struct ipath_user_sdma_queue *pq);
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u32 ipath_user_sdma_inflight_counter(struct ipath_user_sdma_queue *pq);
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