[SRU][F/intel][PULL] WWAN upstream stable patchset
chris.chiu at canonical.com
chris.chiu at canonical.com
Wed Jun 16 11:02:04 UTC 2021
From: Chris Chiu <chris.chiu at canonical.com>
BugLink: https://bugs.launchpad.net/bugs/1932124
[Impact]
The Quectel SDX24 EM160R-GL 4G LTE CAT16 PCIE Modem and Foxconn SDX55 T99W175 5G sub6 PCIE Modem are not supported in 5.11 kernel yet. The new WWAN framework and driver support are required to be backported to detect and control the new WWAN modules.
[Fix]
Backport the WWAN framework and drivers support from mainline kernel 5.13.
[Test Case]
Verify whether the Quectel/Foxconn WWAN module are detected or not. And use either `mmcli` commands or NetworkSettings Panel to test the connection.
[Where problem could occur]
Since the WWAN framework is totally new which makes use of the existing MHI
bus drivers and protocols, it should be compatible with old WWAN
modules. The regression can be considered as low.
---
The following changes since commit 6908621780310ab5a100d68da76cbade95bca245:
UBUNTU: Ubuntu-intel-5.11.0-1005.5 (2021-06-07 18:43:08 +0800)
are available in the Git repository at:
git+ssh://mschiu77@git.launchpad.net/~mschiu77/ubuntu/+source/linux-intel/+git/linux-intel austin-1928665
for you to fetch changes up to 38fdafaf7edf7e4b98980207c6ccf22932d5b203:
UBUNTU: [Config] enable configs for WWAN framework and drivers (2021-06-16 16:34:17 +0800)
----------------------------------------------------------------
Bhaumik Bhatt (19):
bus: mhi: core: Update debug prints to include local device state
bus: mhi: Make firmware image optional for controller
bus: mhi: core: Rely on accurate method to determine EDL mode
bus: mhi: core: Wait for ready after an EDL firmware download
bus: mhi: core: Handle EDL mode entry appropriately
bus: mhi: core: Identify Flash Programmer as a mission mode use case
bus: mhi: core: Wait for MHI READY state in most scenarios
bus: mhi: core: Improve state strings for debug messages
bus: mhi: core: Introduce internal register poll helper function
bus: mhi: core: Move to polling method to wait for MHI ready
bus: mhi: core: Remove pre_init flag used for power purposes
bus: mhi: pci_generic: Add SDX65 based modem support
bus: mhi: core: Allow sending the STOP channel command
bus: mhi: core: Improvements to the channel handling state machine
bus: mhi: core: Update debug messages to use client device
bus: mhi: core: Hold device wake for channel update commands
bus: mhi: core: Check channel execution environment before issuing reset
bus: mhi: core: Remove __ prefix for MHI channel unprepare function
bus: mhi: Improve documentation on channel transfer setup APIs
Carl Huang (1):
mhi: use irq_flags if controller driver configures it
Carl Yin (1):
bus: mhi: core: Add support for Flash Programmer execution environment
Chris Chiu (1):
UBUNTU: [Config] enable configs for WWAN framework and drivers
Colin Ian King (1):
bus: mhi: core: remove redundant initialization of variables state and ee
Fan Wu (1):
bus: mhi: core: Return EAGAIN if MHI ring is full
Hemant Kumar (1):
bus: mhi: core: Add helper API to return number of free TREs
Jarvis Jiang (1):
bus: mhi: pci_generic: Introduce Foxconn T99W175 support
Jeffrey Hugo (1):
bus: mhi: core: Check state before processing power_down
Loic Poulain (46):
bus: mhi: core: Add device hardware reset support
mhi: pci-generic: Increase number of hardware events
mhi: unconstify mhi_event_config
mhi: pci_generic: Enable burst mode for hardware channels
mhi: pci_generic: Add support for reset
mhi: pci_generic: Add suspend/resume/recovery procedure
mhi: pci_generic: Add PCI error handlers
mhi: pci_generic: Add health-check
mhi: pci_generic: Increase controller timeout value
mhi: pci_generic: Add diag channels
mhi: pci_generic: Set irq moderation value to 1ms for hw channels
bus: mhi: Ensure correct ring update ordering with memory barrier
mhi: pci_generic: Fix shared MSI vector support
mhi: core: Factorize mhi queuing
mhi: pci_generic: Print warning in case of firmware crash
bus: mhi: pci_generic: Increase num of elements in hw event ring
bus: mhi: pci_generic: Parametrable element count for events
bus: mhi: pci_generic: Introduce quectel EM1XXGR-L support
bus: mhi: pci_generic: Add SDX24 based modem support
bus: mhi: pci_generic: No-Op for device_wake operations
bus: mhi: pci_generic: Use generic PCI power management
bus: mhi: pci_generic: Add support for runtime PM
bus: mhi: core: Fix invalid error returning in mhi_queue
bus: mhi: core: Rename debugfs directory name
bus: mhi: Early MHI resume failure in non M3 state
bus: mhi: core: Fix MHI runtime_pm behavior
bus: mhi: pm: reduce PM state change verbosity
bus: mhi: pci_generic: Implement PCI shutdown callback
bus: mhi: pci_generic: Add FIREHOSE channels
net: mhi: Add raw IP mode support
net: mhi: Set wwan device type
net: mhi: Get RX queue size from MHI core
net: mhi: Get rid of local rx queue count
net: mhi-net: Add re-aggregation of fragmented packets
net: mhi: Add protocol support
net: mhi: Add dedicated folder
net: mhi: Create mhi.h
net: mhi: Add rx_length_errors stat
net: mhi: Add mbim proto
net: mhi: Add support for non-linear MBIM skb processing
net: mhi: Allow decoupled MTU/MRU
net: Add a WWAN subsystem
net: Add Qcom WWAN control driver
net: wwan: Fix bit ops double shift
net: wwan: mhi_wwan_ctrl: Fix RX buffer starvation
net: wwan: core: Return poll error in case of port removal
debian.intel/config/config.common.ubuntu | 3 +
drivers/bus/mhi/core/boot.c | 13 +-
drivers/bus/mhi/core/debugfs.c | 2 +-
drivers/bus/mhi/core/init.c | 54 +--
drivers/bus/mhi/core/internal.h | 19 +-
drivers/bus/mhi/core/main.c | 436 ++++++++++----------
drivers/bus/mhi/core/pm.c | 107 ++---
drivers/bus/mhi/pci_generic.c | 677 +++++++++++++++++++++++++++++--
drivers/net/Kconfig | 2 +
drivers/net/Makefile | 3 +-
drivers/net/mhi/Makefile | 3 +
drivers/net/mhi/mhi.h | 41 ++
drivers/net/{mhi_net.c => mhi/net.c} | 203 ++++++---
drivers/net/mhi/proto_mbim.c | 303 ++++++++++++++
drivers/net/wwan/Kconfig | 37 ++
drivers/net/wwan/Makefile | 9 +
drivers/net/wwan/mhi_wwan_ctrl.c | 284 +++++++++++++
drivers/net/wwan/wwan_core.c | 554 +++++++++++++++++++++++++
include/linux/mhi.h | 48 ++-
include/linux/wwan.h | 111 +++++
20 files changed, 2530 insertions(+), 379 deletions(-)
create mode 100644 drivers/net/mhi/Makefile
create mode 100644 drivers/net/mhi/mhi.h
rename drivers/net/{mhi_net.c => mhi/net.c} (62%)
create mode 100644 drivers/net/mhi/proto_mbim.c
create mode 100644 drivers/net/wwan/Kconfig
create mode 100644 drivers/net/wwan/Makefile
create mode 100644 drivers/net/wwan/mhi_wwan_ctrl.c
create mode 100644 drivers/net/wwan/wwan_core.c
create mode 100644 include/linux/wwan.h
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