This output shows that the ambient temperature is currently 48°C.
Driver Logging Levels
For the X3522 net driver, two settings affect the verbosity of log messages appearing in dmesg
output and
/var/log/messages
:
• The kernel console log level
• The netif message per network log level.
The kernel console log level controls the overall log message verbosity and can be set with the
command
dmesg -n
or through the
/proc/sys/kernel/printk
file:
echo 6 > /proc/sys/kernel/printk
Refer to ‘man 2 syslog’ for log levels and
Documentation/sysctl/kernel.txt
for a
description of the values in
/proc/sys/kernel/printk
.
The netif message level provides additional logging control for a specified interface. These
message levels are documented in
Documentation/networking/netif-msg.txt
. A
message will only appear on the terminal console if both the kernel console log level and netif
message level requirements are met.
The current netif message level can be viewed using the following command:
ethtool <iface> | grep -A 1 'message level:'
Current message level: 0x000020f7 (8439)
drv probe link ifdown ifup rx_err tx_err hw
Changes to the netif message level can be made with ethtool, either by name:
ethtool -s <iface> msglvl rx_status on
or by bit mask:
ethtool -s <iface> msglvl 0x7fff
The initial setting of the netif msg level for all interfaces is configured using the debug module
parameter. For example:
modprobe xilinx_efct debug=0x7fff
ethtool <iface> | grep -A 1 'message level:'
Current message level: 0x00007fff (32767)
drv probe link timer ifdown ifup rx_err
tx_err tx_queued intr tx_done rx_status pktdata hw wol
Chapter 8: Statistics and Logging
UG1523 (v1.0) October 18, 2022
Alveo X3522 User Guide
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