| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 1 | config INFINIBAND_IPOIB |
| 2 | tristate "IP-over-InfiniBand" |
| 3 | depends on NETDEVICES && INET && (IPV6 || IPV6=n) |
| 4 | ---help--- |
| 5 | Support for the IP-over-InfiniBand protocol (IPoIB). This |
| 6 | transports IP packets over InfiniBand so you can use your IB |
| 7 | device as a fancy NIC. |
| 8 | |
| 9 | See Documentation/infiniband/ipoib.txt for more information |
| 10 | |
| 11 | config INFINIBAND_IPOIB_CM |
| 12 | bool "IP-over-InfiniBand Connected Mode support" |
| 13 | depends on INFINIBAND_IPOIB |
| 14 | default n |
| 15 | ---help--- |
| 16 | This option enables support for IPoIB connected mode. After |
| 17 | enabling this option, you need to switch to connected mode |
| 18 | through /sys/class/net/ibXXX/mode to actually create |
| 19 | connections, and then increase the interface MTU with |
| 20 | e.g. ifconfig ib0 mtu 65520. |
| 21 | |
| 22 | WARNING: Enabling connected mode will trigger some packet |
| 23 | drops for multicast and UD mode traffic from this interface, |
| 24 | unless you limit mtu for these destinations to 2044. |
| 25 | |
| 26 | config INFINIBAND_IPOIB_DEBUG |
| 27 | bool "IP-over-InfiniBand debugging" if EXPERT |
| 28 | depends on INFINIBAND_IPOIB |
| 29 | default y |
| 30 | ---help--- |
| 31 | This option causes debugging code to be compiled into the |
| 32 | IPoIB driver. The output can be turned on via the |
| 33 | debug_level and mcast_debug_level module parameters (which |
| 34 | can also be set after the driver is loaded through sysfs). |
| 35 | |
| 36 | This option also creates a directory tree under ipoib/ in |
| 37 | debugfs, which contains files that expose debugging |
| 38 | information about IB multicast groups used by the IPoIB |
| 39 | driver. |
| 40 | |
| 41 | config INFINIBAND_IPOIB_DEBUG_DATA |
| 42 | bool "IP-over-InfiniBand data path debugging" |
| 43 | depends on INFINIBAND_IPOIB_DEBUG |
| 44 | ---help--- |
| 45 | This option compiles debugging code into the data path |
| 46 | of the IPoIB driver. The output can be turned on via the |
| 47 | data_debug_level module parameter; however, even with output |
| 48 | turned off, this debugging code will have some performance |
| 49 | impact. |