1# SPDX-License-Identifier: GPL-2.0-only 2config INFINIBAND_IPOIB 3 tristate "IP-over-InfiniBand" 4 depends on NETDEVICES && INET && (IPV6 || IPV6=n) 5 help 6 Support for the IP-over-InfiniBand protocol (IPoIB). This 7 transports IP packets over InfiniBand so you can use your IB 8 device as a fancy NIC. 9 10 See Documentation/infiniband/ipoib.rst for more information 11 12config INFINIBAND_IPOIB_CM 13 bool "IP-over-InfiniBand Connected Mode support" 14 depends on INFINIBAND_IPOIB 15 default n 16 help 17 This option enables support for IPoIB connected mode. After 18 enabling this option, you need to switch to connected mode 19 through /sys/class/net/ibXXX/mode to actually create 20 connections, and then increase the interface MTU with 21 e.g. ifconfig ib0 mtu 65520. 22 23 WARNING: Enabling connected mode will trigger some packet 24 drops for multicast and UD mode traffic from this interface, 25 unless you limit mtu for these destinations to 2044. 26 27config INFINIBAND_IPOIB_DEBUG 28 bool "IP-over-InfiniBand debugging" if EXPERT 29 depends on INFINIBAND_IPOIB 30 default y 31 help 32 This option causes debugging code to be compiled into the 33 IPoIB driver. The output can be turned on via the 34 debug_level and mcast_debug_level module parameters (which 35 can also be set after the driver is loaded through sysfs). 36 37 This option also creates a directory tree under ipoib/ in 38 debugfs, which contains files that expose debugging 39 information about IB multicast groups used by the IPoIB 40 driver. 41 42config INFINIBAND_IPOIB_DEBUG_DATA 43 bool "IP-over-InfiniBand data path debugging" 44 depends on INFINIBAND_IPOIB_DEBUG 45 help 46 This option compiles debugging code into the data path 47 of the IPoIB driver. The output can be turned on via the 48 data_debug_level module parameter; however, even with output 49 turned off, this debugging code will have some performance 50 impact. 51