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e808190a59
ConnectX-4/5 devices in mlx5core.
The dump is obtained by reading a predefined register map from the
non-destructive crspace, accessible by the vendor-specific PCIe
capability (VSC). The dump is stored in preallocated kernel memory and
managed by the mlx5tool(8), which communicates with the driver using a
character device node.
The utility allows to store the dump in format
<address> <value>
into a file, to reset the dump content, and to manually initiate the
dump.
A call to mlx5_fwdump() should be added at the places where a dump
must be fetched automatically. The most likely place is right before a
firmware reset request.
Submitted by: kib@
MFC after: 1 week
Sponsored by: Mellanox Technologies
60 lines
2 KiB
C
60 lines
2 KiB
C
/*-
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* Copyright (c) 2018, Mellanox Technologies, Ltd. 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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* 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _DEV_MLX5_MLX5IO_H_
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#define _DEV_MLX5_MLX5IO_H_
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#include <sys/ioccom.h>
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struct mlx5_fwdump_reg {
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uint32_t addr;
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uint32_t val;
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};
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struct mlx5_fwdump_addr {
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uint32_t domain;
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uint8_t bus;
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uint8_t slot;
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uint8_t func;
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};
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struct mlx5_fwdump_get {
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struct mlx5_fwdump_addr devaddr;
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struct mlx5_fwdump_reg *buf;
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size_t reg_cnt;
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size_t reg_filled; /* out */
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};
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#define MLX5_FWDUMP_GET _IOWR('m', 1, struct mlx5_fwdump_get)
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#define MLX5_FWDUMP_RESET _IOW('m', 2, struct mlx5_fwdump_addr)
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#define MLX5_FWDUMP_FORCE _IOW('m', 3, struct mlx5_fwdump_addr)
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#ifndef _KERNEL
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#define MLX5_DEV_PATH _PATH_DEV"mlx5ctl"
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#endif
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#endif
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