Linux lhjmq-records 5.15.0-118-generic #128-Ubuntu SMP Fri Jul 5 09:28:59 UTC 2024 x86_64
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# SPDX-License-Identifier: GPL-2.0-only
config INFINIBAND_IPOIB
tristate "IP-over-InfiniBand"
depends on NETDEVICES && INET && (IPV6 || IPV6=n)
help
Support for the IP-over-InfiniBand protocol (IPoIB). This
transports IP packets over InfiniBand so you can use your IB
device as a fancy NIC.
See Documentation/infiniband/ipoib.rst for more information
config INFINIBAND_IPOIB_CM
bool "IP-over-InfiniBand Connected Mode support"
depends on INFINIBAND_IPOIB
default n
help
This option enables support for IPoIB connected mode. After
enabling this option, you need to switch to connected mode
through /sys/class/net/ibXXX/mode to actually create
connections, and then increase the interface MTU with
e.g. ifconfig ib0 mtu 65520.
WARNING: Enabling connected mode will trigger some packet
drops for multicast and UD mode traffic from this interface,
unless you limit mtu for these destinations to 2044.
config INFINIBAND_IPOIB_DEBUG
bool "IP-over-InfiniBand debugging" if EXPERT
depends on INFINIBAND_IPOIB
default y
help
This option causes debugging code to be compiled into the
IPoIB driver. The output can be turned on via the
debug_level and mcast_debug_level module parameters (which
can also be set after the driver is loaded through sysfs).
This option also creates a directory tree under ipoib/ in
debugfs, which contains files that expose debugging
information about IB multicast groups used by the IPoIB
driver.
config INFINIBAND_IPOIB_DEBUG_DATA
bool "IP-over-InfiniBand data path debugging"
depends on INFINIBAND_IPOIB_DEBUG
help
This option compiles debugging code into the data path
of the IPoIB driver. The output can be turned on via the
data_debug_level module parameter; however, even with output
turned off, this debugging code will have some performance
impact.
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