BMC/Intel-BMC/linux.git/drivers/peci, branch dev-5.14-intel

peci: Add debug printing to check caller PID

2021-10-27T21:35:49+00:00

This commit adds debug printing out to check caller PID for traffic profiling. The printing can be enabled by this command: echo -n 'file drivers/peci/peci-core.c line 218 +p' > /sys/kernel/debug/dynamic_debug/control echo '8' > /proc/sys/kernel/printk Signed-off-by: Jae Hyun Yoo

peci: mctp: Enable PECI over MCTP

2021-10-19T22:10:37+00:00

Remove modparam to enable peci-mctp probe and enable it by default. Tested: Verified that peci-mctp driver probes correctly: peci peci-1: cdev of adapter [peci-mctp] registered as minor 1 Manually verified that applications using PECI work correctly. Signed-off-by: Karol Wachowski

peci: mctp: Add support for CPU discovery

2021-10-19T22:10:37+00:00

When peci-mctp finds that there is no discovered CPU, it queries aspeed-mctp to read BDFs for each static EID reserved by CPU socket. If BDF is non-zero, peci-mctp reads CPUNODEID_CFG register to determine CPU represented by this endpoint. Signed-off-by: Iwona Winiarska

peci: mctp: Extract communication with MCTP

2021-10-19T22:10:37+00:00

Right now, send and receive API functions are called directly from xfer handler. Let's add a dedicated helper function responsible for send/receive to allow issuing PECI messages originated in peci-mctp driver. Signed-off-by: Iwona Winiarska

peci: mctp: Add peci-mctp adapter

2021-10-19T22:10:36+00:00

PECI frames can be encapsulated into MCTP PCIe VDM packets. Let's add driver that allows to send PECI frames via aspeed-mctp driver. Signed-off-by: Iwona Winiarska

peci: Add peci_revision property

2021-10-19T22:10:35+00:00

Right now, PECI revision is determined using a result of GetDIB() PECI command. Because GetDIB() may not be supported by all type of physical media that provides PECI, we need an alternative. Until we figure how to determine PECI revision there (if we can't do that, we'll fallback to device tree), let's allow to hardcode PECI revision as a property of hardware adapter. Signed-off-by: Iwona Winiarska

peci: aspeed: add a WA to cover timing negotiation issue

2021-10-19T22:10:34+00:00

This commit adds a WA to cover timing negotiation hang issue on target CPU cold resets by retriggering the timing negotiation. Signed-off-by: Jae Hyun Yoo

peci: fix error-handling in peci_dev_ioctl()

2021-10-19T22:10:28+00:00

peci_get_xfer_msg() returns NULL on failure, not an ERR_PTR. Also avoid calling kfree() on an ERR_PTR. Fixes: 90ddc4e972b5 ("peci: Add support for PECI bus driver core") Signed-off-by: Zev Weiss Reviewed-by: Jae Hyun Yoo Reviewed-by: Joel Stanley Link: https://lore.kernel.org/r/20200926212734.23836-2-zev@bewilderbeest.net

peci: npcm: add NPCM PECI driver

2021-10-19T22:10:28+00:00

Add support for the Nuvoton NPCM BMC hardware to the Platform Environment Control Interface (PECI) subsystem. Signed-off-by: Tomer Maimon Signed-off-by: Jae Hyun Yoo

peci: Add Aspeed PECI adapter driver

2021-10-19T22:10:28+00:00

This commit adds Aspeed PECI adapter driver for Aspeed AST24xx/25xx/26xx SoCs. Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery