kernel/linux.git/drivers/char/ipmi/Kconfig, branch v6.19.11

ipmi: Add Loongson-2K BMC support

2025-09-16T15:15:54+00:00

This patch adds Loongson-2K BMC IPMI support. According to the existing design, we use software simulation to implement the KCS interface registers: Stauts/Command/Data_Out/Data_In. Also since both host side and BMC side read and write kcs status, fifo flag is used to ensure data consistency. The single KCS message block is as follows: +-------------------------------------------------------------------------+ |FIFO flags| KCS register data | CMD data | KCS version | WR REQ | WR ACK | +-------------------------------------------------------------------------+ Co-developed-by: Chong Qiao Signed-off-by: Chong Qiao Reviewed-by: Huacai Chen Acked-by: Corey Minyard Signed-off-by: Binbin Zhou Message-ID: <8f9ffb6f0405345af8f04193ce1510aacd075e72.1756987761.git.zhoubinbin@loongson.cn> Signed-off-by: Corey Minyard

ipmi: ASPEED_BT_IPMI_BMC: select REGMAP_MMIO instead of depending on it

2023-03-02T22:14:15+00:00

REGMAP is a hidden (not user visible) symbol. Users cannot set it directly thru "make *config", so drivers should select it instead of depending on it if they need it. Consistently using "select" or "depends on" can also help reduce Kconfig circular dependency issues. Therefore, change the use of "depends on REGMAP_MMIO" to "select REGMAP_MMIO", which will also set REGMAP. Fixes: eb994594bc22 ("ipmi: bt-bmc: Use a regmap for register access") Signed-off-by: Randy Dunlap Cc: Andrew Jeffery Cc: Corey Minyard Cc: openipmi-developer@lists.sourceforge.net Cc: Arnd Bergmann Cc: Greg Kroah-Hartman Message-Id: <20230226053953.4681-2-rdunlap@infradead.org> Signed-off-by: Corey Minyard

ipmi: ssif_bmc: Add SSIF BMC driver

2022-10-17T14:51:26+00:00

The SMBus system interface (SSIF) IPMI BMC driver can be used to perform in-band IPMI communication with their host in management (BMC) side. Thanks Dan for the copy_from_user() fix in the link below. Link: https://lore.kernel.org/linux-arm-kernel/20220310114119.13736-4-quan@os.amperecomputing.com/ Signed-off-by: Quan Nguyen Message-Id: <20221004093106.1653317-2-quan@os.amperecomputing.com> Signed-off-by: Corey Minyard

char: ipmi: modify NPCM KCS configuration

2022-07-19T00:27:57+00:00

Modify NPCM IPMI KCS configuration to support all NPCM BMC SoC. Signed-off-by: Tomer Maimon Message-Id: <20220717121124.154734-3-tmaimon77@gmail.com> Signed-off-by: Corey Minyard

ipmi: ipmb: fix dependencies to eliminate build error

2021-10-14T16:17:18+00:00

When CONFIG_I2C=m, CONFIG_I2C_SLAVE=y (bool), and CONFIG_IPMI_IPMB=y, the build fails with: ld: drivers/char/ipmi/ipmi_ipmb.o: in function `ipmi_ipmb_remove': ipmi_ipmb.c:(.text+0x6b): undefined reference to `i2c_slave_unregister' ld: drivers/char/ipmi/ipmi_ipmb.o: in function `ipmi_ipmb_thread': ipmi_ipmb.c:(.text+0x2a4): undefined reference to `i2c_transfer' ld: drivers/char/ipmi/ipmi_ipmb.o: in function `ipmi_ipmb_probe': ipmi_ipmb.c:(.text+0x646): undefined reference to `i2c_slave_register' ld: drivers/char/ipmi/ipmi_ipmb.o: in function `ipmi_ipmb_driver_init': ipmi_ipmb.c:(.init.text+0xa): undefined reference to `i2c_register_driver' ld: drivers/char/ipmi/ipmi_ipmb.o: in function `ipmi_ipmb_driver_exit': ipmi_ipmb.c:(.exit.text+0x8): undefined reference to `i2c_del_driver' This is due to having a tristate depending on a bool symbol. By adding I2C (tristate) as a dependency, the desired dependencies are met, causing IPMI_IPMB to be changed from =y to =m: -CONFIG_IPMI_IPMB=y +CONFIG_IPMI_IPMB=m Fixes: 63c4eb347164 ("ipmi:ipmb: Add initial support for IPMI over IPMB") Signed-off-by: Randy Dunlap Cc: Corey Minyard Cc: openipmi-developer@lists.sourceforge.net Cc: Arnd Bergmann Cc: Greg Kroah-Hartman Message-Id: <20211012204416.23108-1-rdunlap@infradead.org> Signed-off-by: Corey Minyard

ipmi:ssif: Use depends on, not select, for I2C

2021-10-05T11:54:17+00:00

It's more appropriate here. Suggested-by: Randy Dunlap Signed-off-by: Corey Minyard

ipmi:ipmb: Add initial support for IPMI over IPMB

2021-10-05T11:54:17+00:00

This provides access to the management controllers on an IPMB bus to a device sitting on the IPMB bus. It also provides slave capability to respond to received messages on the bus. Signed-off-by: Corey Minyard Tested-by: Andrew Manley Reviewed-by: Andrew Manley

ipmi: kcs_bmc: Add serio adaptor

2021-06-22T00:50:28+00:00

kcs_bmc_serio acts as a bridge between the KCS drivers in the IPMI subsystem and the existing userspace interfaces available through the serio subsystem. This is useful when userspace would like to make use of the BMC KCS devices for purposes that aren't IPMI. Signed-off-by: Andrew Jeffery Message-Id: <20210608104757.582199-12-andrew@aj.id.au> Reviewed-by: Zev Weiss Signed-off-by: Corey Minyard

ipmi: kcs_bmc: Decouple the IPMI chardev from the core

2021-06-22T00:50:22+00:00

Now that we have untangled the data-structures, split the userspace interface out into its own module. Userspace interfaces and drivers are registered to the KCS BMC core to support arbitrary binding of either. Signed-off-by: Andrew Jeffery Message-Id: <20210608104757.582199-9-andrew@aj.id.au> Reviewed-by: Zev Weiss Signed-off-by: Corey Minyard

docs: fix references for ipmi.rst file

2020-05-15T17:55:21+00:00

As this file got moved, fix references for it. Signed-off-by: Mauro Carvalho Chehab Link: https://lore.kernel.org/r/b6c1ded590f27198de15b16237509128e55fa810.1588345503.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet