8540336ada
The last s390 machine that supported FDDI was z900 ('7th generation',
released in 2000). The oldest machine generation currently supported by
the Linux kernel is MARCH_Z10 (released 2008). If there is still a usecase
for connecting a Linux on s390 instance to a LAN Channel Station (LCS), it
can only do so via Ethernet.
Randy Dunlap[1] found that LCS over FDDI has never worked, when FDDI
was compiled as module. Instead of fixing that, remove the FDDI option
from the lcs driver.
While at it, make the CONFIG_LCS description a bit more helpful.
References:
[1] https://lore.kernel.org/netdev/20230621213742.8245-1-rdunlap@infradead.org/
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230724131546.3597001-1-wintera@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
114 lines
3.4 KiB
Plaintext
114 lines
3.4 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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menu "S/390 network device drivers"
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depends on NETDEVICES && S390
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config LCS
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def_tristate m
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prompt "Lan Channel Station Interface"
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depends on CCW && NETDEVICES && ETHERNET
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help
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Select this option if you want to use LCS networking on IBM System z.
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To compile as a module, choose M. The module name is lcs.
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If you do not use LCS, choose N.
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config CTCM
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def_tristate m
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prompt "CTC and MPC SNA device support"
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depends on CCW && NETDEVICES
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help
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Select this option if you want to use channel-to-channel
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point-to-point networking on IBM System z.
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This device driver supports real CTC coupling using ESCON.
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It also supports virtual CTCs when running under VM.
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This driver also supports channel-to-channel MPC SNA devices.
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MPC is an SNA protocol device used by Communication Server for Linux.
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To compile as a module, choose M. The module name is ctcm.
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To compile into the kernel, choose Y.
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If you do not need any channel-to-channel connection, choose N.
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config NETIUCV
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def_tristate m
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prompt "IUCV network device support (VM only)"
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depends on IUCV && NETDEVICES
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help
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Select this option if you want to use inter-user communication
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vehicle networking under VM or VIF. It enables a fast communication
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link between VM guests. Using ifconfig a point-to-point connection
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can be established to the Linux on IBM System z
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running on the other VM guest. To compile as a module, choose M.
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The module name is netiucv. If unsure, choose Y.
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config SMSGIUCV
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def_tristate m
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prompt "IUCV special message support (VM only)"
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depends on IUCV
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help
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Select this option if you want to be able to receive SMSG messages
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from other VM guest systems.
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config SMSGIUCV_EVENT
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def_tristate m
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prompt "Deliver IUCV special messages as uevents (VM only)"
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depends on SMSGIUCV
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help
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Select this option to deliver CP special messages (SMSGs) as
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uevents. The driver handles only those special messages that
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start with "APP".
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To compile as a module, choose M. The module name is "smsgiucv_app".
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config QETH
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def_tristate y
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prompt "Gigabit Ethernet device support"
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depends on CCW && NETDEVICES && IP_MULTICAST && QDIO && ETHERNET
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help
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This driver supports IBM's OSA Express network adapters in QDIO mode,
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HiperSockets interfaces and z/VM virtual NICs for Guest LAN and
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VSWITCH.
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To compile this driver as a module, choose M.
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The module name is qeth.
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config QETH_L2
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def_tristate y
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prompt "qeth layer 2 device support"
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depends on QETH
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depends on BRIDGE || BRIDGE=n
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help
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Select this option to be able to run qeth devices in layer 2 mode.
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To compile as a module, choose M. The module name is qeth_l2.
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If unsure, choose y.
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config QETH_L3
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def_tristate y
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prompt "qeth layer 3 device support"
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depends on QETH
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help
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Select this option to be able to run qeth devices in layer 3 mode.
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To compile as a module choose M. The module name is qeth_l3.
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If unsure, choose Y.
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config QETH_OSX
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def_bool !HAVE_MARCH_Z15_FEATURES
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prompt "qeth OSX device support"
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depends on QETH
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help
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This enables the qeth driver to support devices in OSX mode.
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If unsure, choose N.
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config CCWGROUP
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tristate
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default (LCS || CTCM || QETH || SMC)
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config ISM
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tristate "Support for ISM vPCI Adapter"
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depends on PCI && SMC
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default n
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help
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Select this option if you want to use the Internal Shared Memory
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vPCI Adapter.
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To compile as a module choose M. The module name is ism.
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If unsure, choose N.
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endmenu
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