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