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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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fb64de1bc3
OSN devices currently spend an awful long time in qeth_l2_set_online() until various unsupported HW cmds time out. This has been broken for over two years, ever since commitd22ffb5a71("s390/qeth: fix IPA command submission race") triggered a FW bug in cmd processing. Prior to commit782e4a7921("s390/qeth: don't poll for cmd IO completion"), this wait for timeout would have even been spent busy-polling. The offending patch was picked up by stable and all relevant distros, and yet noone noticed. OSN setups only ever worked in combination with an out-of-tree blob, and the last machine that even offered HW with OSN support was released back in 2015. Rather than attempting to work-around this FW issue for no actual gain, add a deprecation warning so anyone who still wants to maintain this part of the code can speak up. Else rip it all out in 2021. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
126 lines
3.9 KiB
Plaintext
126 lines
3.9 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 || FDDI)
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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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This device driver supports FDDI (IEEE 802.7) and Ethernet.
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To compile as a module, choose M. The module name is lcs.
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If you do not know what it is, it's safe to choose Y.
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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 the IBM System z OSA Express adapters
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in QDIO mode (all media types), HiperSockets interfaces and z/VM
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virtual NICs for Guest LAN and VSWITCH.
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For details please refer to the documentation provided by IBM at
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<http://www.ibm.com/developerworks/linux/linux390>
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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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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_OSN
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def_bool !HAVE_MARCH_Z14_FEATURES
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prompt "qeth OSN 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 OSN mode.
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This feature will be removed in 2021.
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If unsure, choose N.
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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)
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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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