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64 lines
2.5 KiB
C
64 lines
2.5 KiB
C
// SPDX-License-Identifier: BSD-2-Clause-Views
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/*
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* Copyright 2022, The Regents of the University of California.
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* All rights reserved.
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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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* 1. 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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*
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* 2. 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 provided
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* with the distribution.
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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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* The views and conclusions contained in the software and documentation
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* are those of the authors and should not be interpreted as representing
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* official policies, either expressed or implied, of The Regents of the
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* University of California.
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*/
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#include "mqnic.h"
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void mqnic_stats_init(struct mqnic_dev *mdev)
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{
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mdev->stats_rb = mqnic_find_reg_block(mdev->rb_list, MQNIC_RB_STATS_TYPE, MQNIC_RB_STATS_VER, 0);
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if (!mdev->stats_rb)
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return;
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mdev->stats_offset = ioread32(mdev->stats_rb->regs + MQNIC_RB_STATS_REG_OFFSET);
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mdev->stats_count = ioread32(mdev->stats_rb->regs + MQNIC_RB_STATS_REG_COUNT);
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mdev->stats_stride = ioread32(mdev->stats_rb->regs + MQNIC_RB_STATS_REG_STRIDE);
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mdev->stats_flags = ioread32(mdev->stats_rb->regs + MQNIC_RB_STATS_REG_FLAGS);
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}
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u64 mqnic_stats_read(struct mqnic_dev *mdev, int index)
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{
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u64 val;
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if (!mdev->stats_rb || index < 0 || index >= mdev->stats_count)
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return 0;
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val = (u64)ioread32(mdev->hw_addr + mdev->stats_offset + index*8 + 0);
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val |= (u64)ioread32(mdev->hw_addr + mdev->stats_offset + index*8 + 4) << 32;
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return val;
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}
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EXPORT_SYMBOL(mqnic_stats_read);
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