51 lines · plain
1# SPDX-License-Identifier: GPL-2.0-only2config INFINIBAND_IPOIB3 tristate "IP-over-InfiniBand"4 depends on NETDEVICES && INET && (IPV6 || IPV6=n)5 help6 Support for the IP-over-InfiniBand protocol (IPoIB). This7 transports IP packets over InfiniBand so you can use your IB8 device as a fancy NIC.9 10 See Documentation/infiniband/ipoib.rst for more information11 12config INFINIBAND_IPOIB_CM13 bool "IP-over-InfiniBand Connected Mode support"14 depends on INFINIBAND_IPOIB15 default n16 help17 This option enables support for IPoIB connected mode. After18 enabling this option, you need to switch to connected mode19 through /sys/class/net/ibXXX/mode to actually create20 connections, and then increase the interface MTU with21 e.g. ifconfig ib0 mtu 65520.22 23 WARNING: Enabling connected mode will trigger some packet24 drops for multicast and UD mode traffic from this interface,25 unless you limit mtu for these destinations to 2044.26 27config INFINIBAND_IPOIB_DEBUG28 bool "IP-over-InfiniBand debugging" if EXPERT29 depends on INFINIBAND_IPOIB30 default y31 help32 This option causes debugging code to be compiled into the33 IPoIB driver. The output can be turned on via the34 debug_level and mcast_debug_level module parameters (which35 can also be set after the driver is loaded through sysfs).36 37 This option also creates a directory tree under ipoib/ in38 debugfs, which contains files that expose debugging39 information about IB multicast groups used by the IPoIB40 driver.41 42config INFINIBAND_IPOIB_DEBUG_DATA43 bool "IP-over-InfiniBand data path debugging"44 depends on INFINIBAND_IPOIB_DEBUG45 help46 This option compiles debugging code into the data path47 of the IPoIB driver. The output can be turned on via the48 data_debug_level module parameter; however, even with output49 turned off, this debugging code will have some performance50 impact.51