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
98 lines
3.1 KiB
Groff
98 lines
3.1 KiB
Groff
.\"
|
|
.\" Copyright (c) 2018 Mellanox Technologies
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd March 8, 2018
|
|
.Dt mlx5tool 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm mlx5tool
|
|
.Nd Utility for managing Connect-X 4/5 Mellanox network adapters
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Fl d Ar domain:bus:slot:func
|
|
.Fl e
|
|
.Nm
|
|
.Fl d Ar domain:bus:slot:func
|
|
.Fl r
|
|
.Nm
|
|
.Fl d Ar domain:bus:slot:func
|
|
.Fl o Ar file
|
|
.Fl w
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility is provided for management of the Connect-X 4 and 5 network adapters
|
|
in the aspects not covered by the generic
|
|
.Xr ifconfig 8
|
|
command, mostly related to the PCIe attachment and internal card working.
|
|
The utility executes commands on specific adapter, which is addressed using
|
|
.Em device:bus:slot:function
|
|
conventions of the PCIe buses.
|
|
You can match adapters ethernet name and addresses using the
|
|
.X pciconf 8
|
|
utility.
|
|
The address is passed as an argument of the
|
|
.Fl d
|
|
option, which must be specified for each invocation.
|
|
.Pp
|
|
When the driver detects the malfunctioning of the hardware, or by user
|
|
request, it is possible to create
|
|
.Em firmware dump ,
|
|
which contains debugging information about internal device state, for
|
|
analysis of the failure by the Mellanox support team.
|
|
.Pp
|
|
The following commands are currently implemented:
|
|
.Bl -tag -width indent
|
|
.It Fl e
|
|
Take the snapshot of the firmware registers state and store it in the
|
|
kernel buffer.
|
|
The buffer must be empty, in other words, no dumps should be written so
|
|
far, or existing dump cleared with the
|
|
.Fl r
|
|
command for the specified device.
|
|
.It Fl r
|
|
Clear the stored firmware dump, preparing the kernel buffer for
|
|
the next dump.
|
|
.It Fl w
|
|
Fetche the stored firmware dump and writes it into the file specified
|
|
by the
|
|
.Fl o
|
|
option argument.
|
|
.El
|
|
.Sh FILES
|
|
The
|
|
.Pa /dev/mlx5ctl
|
|
.Xr devfs 5
|
|
node is used to pass commands to the driver.
|
|
.Sh SEE ALSO
|
|
.Xr mlx5en 4 ,
|
|
.Xr mlx5ib 4 ,
|
|
.Xr mlx5io 4 ,
|
|
.Xr ifconfig 8
|
|
and
|
|
.Xr pciconf 8 .
|