BMC/Intel-BMC/linux.git/drivers/misc/mei/debugfs.c, branch dev-4.10

mei: bus: enable OS version only for SPT and newer

2017-01-11T06:43:57+00:00

Sending OS version for support of TPM2_ChangeEPS() is required only for SPT FW (HMB version 2.0) and newer. On older platforms the command should be just ignored by the firmware but some older platforms misbehave so it's safer to send the command only if required. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=192051 Fixes: 7279b238bade (mei: send OS type to the FW) Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Tested-by: Jan Niehusmann Signed-off-by: Greg Kroah-Hartman

mei: hbm: send immediate reply flag in enum request

2016-02-07T22:47:20+00:00

Signal the FW that it can send an HBM enumeration answer immediately, without waiting for FW initialization completion, meaning before all the FW clients are ready and registered. Organize enumeration response options to enum as a byproduct. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: fixed address clients for the new platforms

2016-02-07T22:47:20+00:00

Enable by default connection to fixed address clients from user-space for skylake and newer platform. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: debugfs: allow hbm features list dump in earlier stages

2016-02-07T22:47:20+00:00

HBM features list is ready while sending enumerate request and enumerating clients, output it to debugfs in these states too. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: debugfs: adjust active clients print buffer

2016-02-07T22:47:20+00:00

In case of many active host clients clients (41 and more) 1K buffer is not enough for full information print. Calculate buffer size according to real clients number. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: Fix debugfs filename in error output

2015-10-27T05:21:42+00:00

Signed-off-by: Alexander Kuleshov Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: fix debugfs files leak on error path

2015-09-21T05:44:51+00:00

if dbgfs_dir is not set then debugfs_remove_recursive is not called on the error path Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: enable async event notifications only from hbm version 2.0

2015-08-04T00:26:45+00:00

Only FW version 2.0 and newer support the async event notification. For backward compatibility block the feature if the FW version is older then 2.0 Signed-off-by: Tomas Winkler Signed-off-by: Alexander Usyskin Signed-off-by: Greg Kroah-Hartman

mei: disconnect on connection request timeout

2015-08-04T00:25:51+00:00

For the FW with HBM version >= 2.0 we don't need to reset the whole device in case of a particular client failing to connect, it is enough to send disconnect a request to bring the device to the stable state. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: support for dynamic clients

2015-08-04T00:25:51+00:00

HBM version 2.0 and above allows ME clients in the system to register/unregister after the system is fully initialized. Clients may be added or removed after enum_resp message was received 1. To preserve backward compatibility the driver can opt-in to receive client add messages by setting allow_add field in enum_req 2. A new client is added upon reception of MEI_HBM_ADD_CLIENT_REQ_CMD 3. A client is removed in a lazy manner when connection request respond with MEI_HBMS_CLIENT_NOT_FOUND status Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman