linux-dev/drivers/s390/net/Kconfig, branch master

s390/qeth: Switchdev event handler

2021-08-07T08:44:02Z

QETH HiperSockets devices with LEARNING_SYNC capability can be used to construct a linux bridge with: 2 isolated southbound interfaces: a) a default network interface b) a LEARNING-SYNC HiperSockets interface and 1 non-isolated northbound interface. This is called a 'HiperSockets Converged Interface' (HSCI). The existing LEARNING_SYNC functionality is used to update the bridge fdb with MAC addresses that should be sent-out via the HiperSockets interface, instead of the default network interface. Add handling of switchdev events SWITCHDEV_FDB_ADD_TO_DEVICE and SWITCHDEV_FDB_DEL_TO_DEVICE to the qeth LEARNING_SYNC functionality. Thus if the northbound bridgeport of an HSCI doesn't only have a single static MAC address, but instead is a learning bridgeport, work is enqueued, so the HiperSockets virtual switch (that is external to this Linux instance) can update its fdb. When BRIDGE is a loadable module, QETH_L2 mustn't be built-in: drivers/s390/net/qeth_l2_main.o: in function 'qeth_l2_switchdev_event': drivers/s390/net/qeth_l2_main.c:927: undefined reference to 'br_port_flag_is_set' Add Kconfig dependency to enforce usable configurations. Signed-off-by: Alexandra Winter Reviewed-by: Wenjia Zhang Signed-off-by: Karsten Graul Signed-off-by: David S. Miller

s390/qeth: remove OSN support

2021-07-20T13:17:06Z

Commit fb64de1bc36c ("s390/qeth: phase out OSN support") spelled out why the OSN support in qeth is in a bad shape, and put any remaining interested parties on notice to speak up before it gets ripped out. It's 2021 now, so make true on that promise and remove all the OSN-specific parts from qeth. This also means that we no longer need to export various parts of the cmd & data path internals to the L2 driver. Signed-off-by: Julian Wiedmann Reviewed-by: Alexandra Winter Signed-off-by: David S. Miller

s390/net: add SMC config as one of the defaults of CCWGROUP

2020-09-10T22:24:26Z

arch/s390/net/pnet.c uses ccwgroup function dev_is_ccwgroup() in pnetid_by_dev_port(). For s390 the net/smc code makes use of function pnetid_by_dev_port(). Make sure ccwgroup is built into the kernel, if smc is to be built into the kernel. Signed-off-by: Guvenc Gulce Reviewed-by: Ursula Braun Signed-off-by: Karsten Graul Signed-off-by: David S. Miller

s390/qeth: clean up Kconfig help text

2020-05-06T21:11:26Z

Remove a stale doc link. While at it also reword the help text to get rid of an outdated marketing term. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller

s390/qeth: phase out OSN support

2020-03-27T22:36:56Z

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 commit d22ffb5a712f ("s390/qeth: fix IPA command submission race") triggered a FW bug in cmd processing. Prior to commit 782e4a792147 ("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 Signed-off-by: David S. Miller

s390/qeth: make OSN / OSX support configurable

2020-03-27T22:36:56Z

The last machine generation that supports OSN is z13, and OSX is only supported up to z14. Allow users and distros to decide whether they still need support for these device types. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller

s390/Kconfig: pedantic cleanups

2019-06-04T13:03:46Z

Formatting of Kconfig files doesn't look so pretty, so just take damp cloth and clean it up. Signed-off-by: Enrico Weigelt, metux IT consult Signed-off-by: Heiko Carstens

s390/ism: add device driver for internal shared memory

2018-06-30T11:42:26Z

Add support for the Internal Shared Memory vPCI Adapter. This driver implements the interfaces of the SMC-D protocol. Signed-off-by: Sebastian Ott Signed-off-by: Ursula Braun Signed-off-by: David S. Miller

s390/qeth: drop CONFIG_QETH_IPV6

2017-12-20T20:23:44Z

commit "s390/qeth: use ip*_eth_mc_map helpers" removed the last occurrence of CONFIG_IPV6-dependent code. Signed-off-by: Julian Wiedmann Signed-off-by: David S. Miller

s390: add a few more SPDX identifiers

2017-12-05T06:51:09Z

Add the correct SPDX license to a few more files under arch/s390 and drivers/s390 which have been missed to far. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. Signed-off-by: Martin Schwidefsky