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4730f4a6c6
As described in earlier patches, ipoib netdev will share receive contexts with existing VNIC netdev through a dummy netdev. The following changes are made to achieve that: - Set up netdev receive contexts after user contexts. A function is added to count the available netdev receive contexts. - Add functions to set/get receive map table free index. - Rename NUM_VNIC_MAP_ENTRIES as NUM_NETDEV_MAP_ENTRIES. - Let the dummy netdev own the receive contexts instead of VNIC. - Allocate the dummy netdev when the hfi1 device is added and free it when the device is removed. - Initialize AIP RSM rules when the IpoIb rxq is initialized and remove the rules when it is de-initialized. - Convert VNIC to use the dummy netdev. Link: https://lore.kernel.org/r/20200511160649.173205.4626.stgit@awfm-01.aw.intel.com Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Sadanand Warrier <sadanand.warrier@intel.com> Signed-off-by: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
67 lines
2.8 KiB
C
67 lines
2.8 KiB
C
/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
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/*
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* Copyright(c) 2018 - 2020 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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#ifndef _HFI1_MSIX_H
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#define _HFI1_MSIX_H
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#include "hfi.h"
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/* MSIx interface */
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int msix_initialize(struct hfi1_devdata *dd);
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int msix_request_irqs(struct hfi1_devdata *dd);
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void msix_clean_up_interrupts(struct hfi1_devdata *dd);
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int msix_request_general_irq(struct hfi1_devdata *dd);
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int msix_request_rcd_irq(struct hfi1_ctxtdata *rcd);
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int msix_request_sdma_irq(struct sdma_engine *sde);
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void msix_free_irq(struct hfi1_devdata *dd, u8 msix_intr);
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/* Netdev interface */
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void msix_netdev_synchronize_irq(struct hfi1_devdata *dd);
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int msix_netdev_request_rcd_irq(struct hfi1_ctxtdata *rcd);
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#endif
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