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The original Open Systems Adapter (OSA) was introduced by IBM in the mid-90s. These were then superseded by OSA-Express in 1999 which used Queued Direct IO to greatly improve throughput. The newer cards retained the older, slower non-QDIO (OSE) modes for compatibility with older systems. In Linux, the lcs driver was responsible for cards operating in the older OSE mode and the qeth driver was introduced to allow the OSA-Express cards to operate in the newer QDIO (OSD) mode. For an S390 machine from 1998 or later, there is no reason to use the OSE mode and lcs driver as all OSA cards since 1999 provide the faster OSD mode. As a result, it's been years since we have heard of a customer configuration involving the lcs driver. This patch removes the lcs driver. The technology it supports has been obsolete for past 25+ years and is irrelevant for current use cases. Reviewed-by: Alexandra Winter <wintera@linux.ibm.com> Acked-by: Heiko Carstens <hca@linux.ibm.com> Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Aswin Karuvally <aswin@linux.ibm.com> Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250204103135.1619097-1-wintera@linux.ibm.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
106 lines
3.2 KiB
Plaintext
106 lines
3.2 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 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 (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
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imply 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. The adapter can be used with the SMC network protocol.
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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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