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Date: Sun, 19 Sep 2021 22:54:24 +0530 From: M Chetan Kumar <m.chetan.kumar@...ux.intel.com> To: netdev@...r.kernel.org Cc: kuba@...nel.org, davem@...emloft.net, johannes@...solutions.net, ryazanov.s.a@...il.com, loic.poulain@...aro.org, krishna.c.sudi@...el.com, m.chetan.kumar@...el.com, linuxwwan@...el.com Subject: [PATCH V2 net-next 0/6] net: wwan: iosm: fw flashing & cd collection This patch series brings-in support for M.2 7560 Device firmware flashing & coredump collection using devlink. - Driver Registers with Devlink framework. - Register devlink params callback for configuring device params required in flashing or coredump flow. - Implements devlink ops flash_update callback that programs modem firmware. - Creates region & snapshot required for device coredump log collection. On early detection of device in boot rom stage. Driver registers with Devlink framework and establish transport channel for PSI (Primary Signed Image) injection. Once PSI is injected to device, the device execution stage details are read to determine whether device is in flash or exception mode. The collected information is reported to devlink user space application & based on this informationi, application proceeds with either modem firmware flashing or coredump collection. Refer to iosm devlink documentation for details on Devlink Params, flash update and coredump collection command usage. Note: Patches are interdependent. Need to apply complete patch series for compilation. Changes since v1: * Break down single patch into multiple patches. * IOSM Driver devlink documentation. * Fixes NULL parameter deference in ipc_devlink_flash_update() reported by smatch static checker. * Fixes memory leak in ipc_devlink_create_region(). * Use kmemdup instead of kzalloc and memcpy in ipc_flash_boot_psi(). * Fixes linux-net build error. M Chetan Kumar (6): net: wwan: iosm: devlink registration net: wwan: iosm: fw flashing support net: wwan: iosm: coredump collection support net: wwan: iosm: transport layer support for fw flashing/cd net: wwan: iosm: devlink fw flashing & cd collection documentation net: wwan: iosm: fw flashing & cd collection infrastructure changes Documentation/networking/devlink/index.rst | 1 + Documentation/networking/devlink/iosm.rst | 182 +++++++ drivers/net/wwan/Kconfig | 1 + drivers/net/wwan/iosm/Makefile | 5 +- drivers/net/wwan/iosm/iosm_ipc_chnl_cfg.c | 6 +- drivers/net/wwan/iosm/iosm_ipc_chnl_cfg.h | 1 + drivers/net/wwan/iosm/iosm_ipc_coredump.c | 110 ++++ drivers/net/wwan/iosm/iosm_ipc_coredump.h | 75 +++ drivers/net/wwan/iosm/iosm_ipc_devlink.c | 363 +++++++++++++ drivers/net/wwan/iosm/iosm_ipc_devlink.h | 207 ++++++++ drivers/net/wwan/iosm/iosm_ipc_flash.c | 561 +++++++++++++++++++++ drivers/net/wwan/iosm/iosm_ipc_flash.h | 271 ++++++++++ drivers/net/wwan/iosm/iosm_ipc_imem.c | 103 +++- drivers/net/wwan/iosm/iosm_ipc_imem.h | 18 +- drivers/net/wwan/iosm/iosm_ipc_imem_ops.c | 317 ++++++++++++ drivers/net/wwan/iosm/iosm_ipc_imem_ops.h | 49 +- 16 files changed, 2239 insertions(+), 31 deletions(-) create mode 100644 Documentation/networking/devlink/iosm.rst create mode 100644 drivers/net/wwan/iosm/iosm_ipc_coredump.c create mode 100644 drivers/net/wwan/iosm/iosm_ipc_coredump.h create mode 100644 drivers/net/wwan/iosm/iosm_ipc_devlink.c create mode 100644 drivers/net/wwan/iosm/iosm_ipc_devlink.h create mode 100644 drivers/net/wwan/iosm/iosm_ipc_flash.c create mode 100644 drivers/net/wwan/iosm/iosm_ipc_flash.h -- 2.25.1
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