On Mon 13 Apr 20:59 PDT 2020, Wang Wenhu wrote: > RPMON is a driver framework. It supports remote processor monitor > from user level. The basic components are a character device > with sysfs interfaces for user space communication and different > kinds of message drivers introduced modularly, which are used to > communicate with remote processors. > > As for user space, one can get notifications of different events > of remote processors, like their registrations, through standard > file read operation of the file descriptors related to the exported > character devices. Actions can also be taken into account via > standard write operations to the devices. Besides, the sysfs class > attributes could be accessed conveniently. > > Message drivers act as engines to communicate with remote processors. > Currently RPMON_QMI is available which uses QMI infrastructures > on Qualcomm SoC Platforms. > > RPMON_QMI implements a kind of communication routine for RPMON to > communicate with remote processors through QMI infrastructure. > RPMON_QMI itself is designed as a modular framework that would > introduce different kind of message sets which are binding to > different services. > > RPMON_QMI creates a device of rpmon_device type for each remote > processor endpoint. All the endpoint devices share an unique set > of QMI suite. > > RPMON_QMI_MSG_V01 implements a RPMON_QMI message set for connection check. > RPMON_QMI defines its message types modularly. Each rpmon service > binds to a message set and introduced as a module. This version 1.0 > message set could be used for connection checking of remote processors. > > RPMON_QMI messages depend on QCOM_QMI_HELPERS and should be updated > together with QMI related modules. > Hi Wang, What additional transports do you expect for this to be a framework and not just a driver? Why not implement the rpmon client directly in userspace? Regards, Bjorn > Changes since v1: > - Addressed review comments from Randy > Changes since v2: > - Added Cc list > - Commit log typo fixing > - Use the ARRAY_SIZE instead of calculations of multiple sizeof() > - Use micros for qmi message tly_type fields > > Wang Wenhu (3): > driver: rpmon: new driver Remote Processor Monitor > driver: rpmon: qmi message version 01 > driver: rpmon: add rpmon_qmi driver > > drivers/Kconfig | 2 + > drivers/Makefile | 1 + > drivers/rpmon/Kconfig | 54 ++++ > drivers/rpmon/Makefile | 3 + > drivers/rpmon/rpmon.c | 506 +++++++++++++++++++++++++++++++ > drivers/rpmon/rpmon_qmi.c | 431 ++++++++++++++++++++++++++ > drivers/rpmon/rpmon_qmi.h | 76 +++++ > drivers/rpmon/rpmon_qmi_msg_v1.c | 258 ++++++++++++++++ > include/linux/rpmon.h | 68 +++++ > 9 files changed, 1399 insertions(+) > create mode 100644 drivers/rpmon/Kconfig > create mode 100644 drivers/rpmon/Makefile > create mode 100644 drivers/rpmon/rpmon.c > create mode 100644 drivers/rpmon/rpmon_qmi.c > create mode 100644 drivers/rpmon/rpmon_qmi.h > create mode 100644 drivers/rpmon/rpmon_qmi_msg_v1.c > create mode 100644 include/linux/rpmon.h > > -- > 2.17.1 >
