An I/O request of a User VM, which is constructed by the hypervisor, is
distributed by the ACRN Hypervisor Service Module to an I/O client
corresponding to the address range of the I/O request.
For each User VM, there is a shared 4-KByte memory region used for I/O
requests communication between the hypervisor and Service VM. An I/O
request is a 256-byte structure buffer, which is 'struct
acrn_io_request', that is filled by an I/O handler of the hypervisor
when a trapped I/O access happens in a User VM. ACRN userspace in the
Service VM first allocates a 4-KByte page and passes the GPA (Guest
Physical Address) of the buffer to the hypervisor. The buffer is used as
an array of 16 I/O request slots with each I/O request slot being 256
bytes. This array is indexed by vCPU ID.
An I/O client, which is 'struct acrn_ioreq_client', is responsible for
handling User VM I/O requests whose accessed GPA falls in a certain
range. Multiple I/O clients can be associated with each User VM. There
is a special client associated with each User VM, called the default
client, that handles all I/O requests that do not fit into the range of
any other I/O clients. The ACRN userspace acts as the default client for
each User VM.
The state transitions of a ACRN I/O request are as follows.
FREE -> PENDING -> PROCESSING -> COMPLETE -> FREE -> ...
FREE: this I/O request slot is empty
PENDING: a valid I/O request is pending in this slot
PROCESSING: the I/O request is being processed
COMPLETE: the I/O request has been processed
An I/O request in COMPLETE or FREE state is owned by the hypervisor. HSM
and ACRN userspace are in charge of processing the others.
The processing flow of I/O requests are listed as following:
a) The I/O handler of the hypervisor will fill an I/O request with
PENDING state when a trapped I/O access happens in a User VM.
b) The hypervisor makes an upcall, which is a notification interrupt, to
the Service VM.
c) The upcall handler schedules a worker to dispatch I/O requests.
d) The worker looks for the PENDING I/O requests, assigns them to
different registered clients based on the address of the I/O accesses,
updates their state to PROCESSING, and notifies the corresponding
client to handle.
e) The notified client handles the assigned I/O requests.
f) The HSM updates I/O requests states to COMPLETE and notifies the
hypervisor of the completion via hypercalls.
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Yu Wang <yu1.wang@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Link: https://lore.kernel.org/r/20210207031040.49576-10-shuo.a.liu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The HSM provides hypervisor services to the ACRN userspace. While
launching a User VM, ACRN userspace needs to allocate memory and request
the ACRN Hypervisor to set up the EPT mapping for the VM.
A mapping cache is introduced for accelerating the translation between
the Service VM kernel virtual address and User VM physical address.
>From the perspective of the hypervisor, the types of GPA of User VM can be
listed as following:
1) RAM region, which is used by User VM as system ram.
2) MMIO region, which is recognized by User VM as MMIO. MMIO region is
used to be utilized for devices emulation.
Generally, User VM RAM regions mapping is set up before VM started and
is released in the User VM destruction. MMIO regions mapping may be set
and unset dynamically during User VM running.
To achieve this, ioctls ACRN_IOCTL_SET_MEMSEG and ACRN_IOCTL_UNSET_MEMSEG
are introduced in HSM.
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Yu Wang <yu1.wang@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Link: https://lore.kernel.org/r/20210207031040.49576-9-shuo.a.liu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A virtual CPU of User VM has different context due to the different
registers state. ACRN userspace needs to set the virtual CPU
registers state (e.g. giving a initial registers state to a virtual
BSP of a User VM).
HSM provides an ioctl ACRN_IOCTL_SET_VCPU_REGS to do the virtual CPU
registers state setting. The ioctl passes the registers state from ACRN
userspace to the hypervisor directly.
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Yu Wang <yu1.wang@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Link: https://lore.kernel.org/r/20210207031040.49576-8-shuo.a.liu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The VM management interfaces expose several VM operations to ACRN
userspace via ioctls. For example, creating VM, starting VM, destroying
VM and so on.
The ACRN Hypervisor needs to exchange data with the ACRN userspace
during the VM operations. HSM provides VM operation ioctls to the ACRN
userspace and communicates with the ACRN Hypervisor for VM operations
via hypercalls.
HSM maintains a list of User VM. Each User VM will be bound to an
existing file descriptor of /dev/acrn_hsm. The User VM will be
destroyed when the file descriptor is closed.
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Yu Wang <yu1.wang@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Link: https://lore.kernel.org/r/20210207031040.49576-7-shuo.a.liu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Improve communication protocol with device CPU CP application.
The change prevents random (rare) out-of-sync errors.
- Notify F/W to start sending events only after initialization of
device is done. This fixes the issue where fatal events were received
but ignored.
- Fix integer handling (static analysis warning).
- Always fetch HBM ECC errors from F/W (if available).
- Minor fix in GAUDI-specific initialization code.
-----BEGIN PGP SIGNATURE-----
iQFHBAABCgAxFiEE7TEboABC71LctBLFZR1NuKta54AFAmAhZjITHG9nYWJiYXlA
a2VybmVsLm9yZwAKCRBlHU24q1rngLg4B/9LWydC5nBf1RrJb9hbJjWYHfJxtA+0
SLwEnNCmUQ8UqfIsXEpzr0u1nZeali/jPXvH5ohkPAxahv83o4q2cVT3FdQbaHXP
InsdtCjxole+Ne2hQpR7yWBZrqU8n5msN/e3OsRfNFGv5jmafIEhn9Ef+DMILiF2
yt+yBdoQMHg0TZE/pZcGedFumf4tPMaQcp83krp7Ma4EzqDvMJwDexcfbpla2tuZ
tnndKNYB60p6YAdfDmvD+7nXxpA5JnnkXcZNBBRw3gce62q90yt2bRTEEHXrkaOj
lERhksXHy8VeMGuLfd6BebBzNOSjl2HN+LnSBwGUM6obnr6gt7df2Xn5
=/k5r
-----END PGP SIGNATURE-----
Merge tag 'misc-habanalabs-next-2021-02-08' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux into char-misc-next
Oded writes:
This tag contains the following changes for 5.12-rc1:
- Improve communication protocol with device CPU CP application.
The change prevents random (rare) out-of-sync errors.
- Notify F/W to start sending events only after initialization of
device is done. This fixes the issue where fatal events were received
but ignored.
- Fix integer handling (static analysis warning).
- Always fetch HBM ECC errors from F/W (if available).
- Minor fix in GAUDI-specific initialization code.
* tag 'misc-habanalabs-next-2021-02-08' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux:
habanalabs/gaudi: don't enable clock gating on DMA5
habanalabs: return block size + block ID
habanalabs: update security map after init CPU Qs
habanalabs: enable F/W events after init done
habanalabs/gaudi: use HBM_ECC_EN bit for ECC ERR
habanalabs: support fetching first available user CQ
habanalabs: improve communication protocol with cpucp
habanalabs: fix integer handling issue
Updates forv5.12-rc1 are:
- New no_pm IO routines and the usage in Intel drivers
- Intel driver & Cadence lib updates
-----BEGIN PGP SIGNATURE-----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=ZNSl
-----END PGP SIGNATURE-----
Merge tag 'soundwire-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-next
Vinod writes:
soundwire updates for 5.12-rc1
Updates forv5.12-rc1 are:
- New no_pm IO routines and the usage in Intel drivers
- Intel driver & Cadence lib updates
* tag 'soundwire-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: bus: clarify dev_err/dbg device references
soundwire: bus: fix confusion on device used by pm_runtime
soundwire: export sdw_write/read_no_pm functions
soundwire: bus: use no_pm IO routines for all interrupt handling
soundwire: bus: use sdw_write_no_pm when setting the bus scale registers
soundwire: bus: use sdw_update_no_pm when initializing a device
soundwire: Revert "soundwire: debugfs: use controller id instead of link_id"
soundwire: return earlier if no slave is attached
soundwire: bus: add better dev_dbg to track complete() calls
soundwire: cadence: adjust verbosity in response handling
soundwire: cadence: fix ACK/NAK handling
soundwire: bus: add more details to track failed transfers
soundwire: cadence: add status in dev_dbg 'State change' log
soundwire: use consistent format for Slave devID logs
soundwire: intel: don't return error when clock stop failed
soundwire: debugfs: use controller id instead of link_id
MAINTAINERS: soundwire: Add soundwire tree
soundwire: sysfs: Constify static struct attribute_group
soundwire: cadence: reduce timeout on transactions
soundwire: intel: Use kzalloc for allocating only one thing
The driver core ignores the return value of mei_cl_device_remove() so
passing an error value doesn't solve any problem. As most mei drivers'
remove callbacks return 0 unconditionally and returning a different value
doesn't have any effect, change this prototype to return void and return 0
unconditionally in mei_cl_device_remove(). The only driver that could
return an error value is modified to emit an explicit warning in the error
case.
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Link: https://lore.kernel.org/r/20210208073705.428185-3-uwe@kleine-koenig.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When user gives us a block address to get its ID to mmap it, he also
needs to get from us the block size to pass to the driver in the mmap
function.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
User must be aware of the available CQs when it needs to use them.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Loic improved the MHI PCI generic controller by adding support for DIAG channel,
PCI error handling, suspend/recovery/resume, and health check. Loic also added
support for resetting the MHI device as per the MHI specification. This includes
writing to a specific register for default cases and looking for controller
specific callback when provided.
Along with this Loic, also added a new API which gets the number for free TREs
(Transfer Ring Elements) from the MHI core. The client drivers can make use of
this API and the current consumer is the "mhi-net" driver. For taking both the
"mhi-net" driver change and the API change, we created "mhi-net-immutable"
branch for this patch and merged the same into net-next and mhi-next.
Carl added a patch which lets the controller driver to pass the custom IRQ
flags for BHI and MHI event interrupts to the MHI core. The current consumer of
this feature is the ath11k MHI controller driver. For taking both the changes,
we created "mhi-ath11k-immutable" branch for this patch and merged into
ath11k-next and mhi-next.
Finally, Loic cleaned up the MHI queue APIs and fixed the shared MSI vector
support.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEZ6VDKoFIy9ikWCeXVZ8R5v6RzvUFAmAdQIMACgkQVZ8R5v6R
zvWtsQgApNckrY1W+CAOi/CkYrwvO7ADNw+nZIEu1FkhnDo5qCTwDYfNogf3K9lq
LbtuQLaBBE4ilvrB+o4ubLYBaRN0Bt4B+ImShvPmJw6/HDuuzW2AmdDn66bMMRHz
wZ0cXgisnrJn8tSIZUfx05wyxT6AV+A4f0cZv/FzU0rzIgrHsJVdDtrGcxOnoK2w
tbUoGuIwCIN8uJp+XXpBufujKz6S+2GSHKP6ELdNhoNhgag7u+fau5IUZVewTkSM
ayAYwlzHOR5TCnI+/clOEh7RHodORZ0xvsj5IqEuaFz0PwF/fT/37LMWfNP3Cc11
FjM/ZU++gKh6aa/PEJlGTxSlqVK+NQ==
=tdTN
-----END PGP SIGNATURE-----
Merge tag 'mhi-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi into char-misc-next
Manivannan writes:
MHI changes for v5.12
Loic improved the MHI PCI generic controller by adding support for DIAG channel,
PCI error handling, suspend/recovery/resume, and health check. Loic also added
support for resetting the MHI device as per the MHI specification. This includes
writing to a specific register for default cases and looking for controller
specific callback when provided.
Along with this Loic, also added a new API which gets the number for free TREs
(Transfer Ring Elements) from the MHI core. The client drivers can make use of
this API and the current consumer is the "mhi-net" driver. For taking both the
"mhi-net" driver change and the API change, we created "mhi-net-immutable"
branch for this patch and merged the same into net-next and mhi-next.
Carl added a patch which lets the controller driver to pass the custom IRQ
flags for BHI and MHI event interrupts to the MHI core. The current consumer of
this feature is the ath11k MHI controller driver. For taking both the changes,
we created "mhi-ath11k-immutable" branch for this patch and merged into
ath11k-next and mhi-next.
Finally, Loic cleaned up the MHI queue APIs and fixed the shared MSI vector
support.
* tag 'mhi-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/mani/mhi:
bus: mhi: pci_generic: Increase num of elements in hw event ring
mhi: pci_generic: Print warning in case of firmware crash
bus: mhi: core: Add helper API to return number of free TREs
mhi: core: Factorize mhi queuing
mhi: use irq_flags if controller driver configures it
mhi: pci_generic: Fix shared MSI vector support
mhi: unconstify mhi_event_config
bus: mhi: Ensure correct ring update ordering with memory barrier
mhi: pci_generic: Set irq moderation value to 1ms for hw channels
mhi: pci_generic: Add diag channels
mhi: pci_generic: Increase controller timeout value
mhi: pci_generic: Add health-check
mhi: pci_generic: Add PCI error handlers
mhi: pci_generic: Add suspend/resume/recovery procedure
mhi: pci_generic: Add support for reset
mhi: pci_generic: Enable burst mode for hardware channels
mhi: pci-generic: Increase number of hardware events
bus: mhi: core: Add device hardware reset support
This merges from linux-arm at 860660fd82 ("ARM: 9055/1: mailbox:
arm_mhuv2: make remove callback return void") into char-misc-next to get
the amba fixes from Uwe.
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here are the interconnect changes for the 5.12-rc1 merge window
consisting of driver updates.
Driver changes:
- Refactoring and consolidation of drivers.
- New driver for MSM8939 platforms.
- New driver for SDX55 platforms.
Signed-off-by: Georgi Djakov <djakov@kernel.org>
-----BEGIN PGP SIGNATURE-----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=hEE3
-----END PGP SIGNATURE-----
Merge tag 'icc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-misc-next
Georgi writes:
interconnect changes for 5.12
Here are the interconnect changes for the 5.12-rc1 merge window
consisting of driver updates.
Driver changes:
- Refactoring and consolidation of drivers.
- New driver for MSM8939 platforms.
- New driver for SDX55 platforms.
Signed-off-by: Georgi Djakov <djakov@kernel.org>
* tag 'icc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/djakov/icc:
interconnect: qcom: Add SDX55 interconnect provider driver
dt-bindings: interconnect: Add Qualcomm SDX55 DT bindings
interconnect: qcom: Add MSM8939 interconnect provider driver
dt-bindings: interconnect: Add Qualcomm MSM8939 DT bindings
dt-bindings: interconnect: single yaml file for RPM interconnect drivers
interconnect: qcom: qcs404: use shared code
interconnect: qcom: Consolidate interconnect RPM support
We are about to introduce support for sysreg access to ETMv4.4+
component. Since there are generic routines that access the
registers (e.g, CS_LOCK/UNLOCK , claim/disclaim operations, timeout)
and in order to preserve the logic of these operations at a
single place we introduce an abstraction layer for the accesses
to a given device.
Link: https://lore.kernel.org/r/20210110224850.1880240-4-suzuki.poulose@arm.com
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210201181351.1475223-6-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Add feature called "staged command submissions". In this feature,
the driver allows the user to submit multiple command submissions
that describe a single pass on the deep learning graph. The driver
tracks the completion of the entire pass by the last stage CS.
- Update code to support the latest firmware image
- Optimizations and improvements to MMU code:
- Support page size that is not power-of-2
- Make the locks scheme simpler
- mmap areas in device configuration space to userspace
- Security fixes:
- Make ETR non-secured
- Remove access to kernel memory through debug-fs interface
- Remove access through PCI bar to SyncManager register block
in Gaudi
- Many small bug fixes
-----BEGIN PGP SIGNATURE-----
iQFHBAABCgAxFiEE7TEboABC71LctBLFZR1NuKta54AFAmARvmgTHG9nYWJiYXlA
a2VybmVsLm9yZwAKCRBlHU24q1rngJ67B/9eSEhEXDoYVXjdt0qebOf2sAI65csq
ZZ5FXcnkQHjStytpSfBTztlz1fvRF9sged7Kta98Bl+H70JqebzRhv076ZDT5IEs
0DI//FoMYIShItTtFwgjINU8QGBww42Cod4SXNJ6wpRBrIhtBQF3Yn9XpWA7nesY
ido3O7Vf73mU+gCA+mj1TBkhmGg+tZ8c1rwhItBkNYjU9mQwSZSEY/fGwtadwsB/
GECYAu3ekZn/RmUC9YvJ68o6b/CLpAmOGSqcOsj6mRzL9CsI73KuVU23N0plnLaX
kuCCSLRZb2AbNnj5u7Hp7FvwBa8LVlxYRsCKbTJ9KXpmSlbrj67I4sHw
=cqv6
-----END PGP SIGNATURE-----
Merge tag 'misc-habanalabs-next-2021-01-27' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux into char-misc-next
Oded writes:
This tag contains habanalabs driver changes for v5.12:
- Add feature called "staged command submissions". In this feature,
the driver allows the user to submit multiple command submissions
that describe a single pass on the deep learning graph. The driver
tracks the completion of the entire pass by the last stage CS.
- Update code to support the latest firmware image
- Optimizations and improvements to MMU code:
- Support page size that is not power-of-2
- Make the locks scheme simpler
- mmap areas in device configuration space to userspace
- Security fixes:
- Make ETR non-secured
- Remove access to kernel memory through debug-fs interface
- Remove access through PCI bar to SyncManager register block
in Gaudi
- Many small bug fixes
* tag 'misc-habanalabs-next-2021-01-27' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux: (41 commits)
habanalabs: update to latest hl_boot_if.h spec from F/W
habanalabs/gaudi: unmask HBM interrupts after handling
habanalabs: update SyncManager interrupt handling
habanalabs: fix ETR security issue
habanalabs: staged submission support
habanalabs: modify device_idle interface
habanalabs: add CS completion and timeout properties
habanalabs: add new mem ioctl op for mapping hw blocks
habanalabs: fix MMU debugfs related nodes
habanalabs: add user available interrupt to hw_ip
habanalabs: always try to use the hint address
CREDITS: update email address and home address
habanalabs: update email address in sysfs/debugfs docs
habanalabs: add security violations dump to debugfs
habanalabs: ignore F/W BMC errors in case no BMC present
habanalabs/gaudi: print sync manager SEI interrupt info
habanalabs: Use 'dma_set_mask_and_coherent()'
habanalabs/gaudi: remove PCI access to SM block
habanalabs: add driver support for internal cb scheduling
habanalabs: increment ctx ref from within a cs allocation
...
All amba drivers return 0 in their remove callback. Together with the
driver core ignoring the return value anyhow, it doesn't make sense to
return a value here.
Change the remove prototype to return void, which makes it explicit that
returning an error value doesn't work as expected. This simplifies changing
the core remove callback to return void, too.
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org> # for drivers/memory
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com> # for hwtracing/coresight
Acked-By: Vinod Koul <vkoul@kernel.org> # for dmaengine
Acked-by: Guenter Roeck <linux@roeck-us.net> # for watchdog
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Acked-by: Takashi Iwai <tiwai@suse.de> # for sound
Acked-by: Vladimir Zapolskiy <vz@mleia.com> # for memory/pl172
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20210126165835.687514-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Currently this API uses single 64 bits mask for engines idle indication.
Recently, it was observed that more bits are needed for some ASICs.
This patch modifies the use of the idle mask and the idle_extensions
mask.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
For future ASIC support the driver allows user to map certain regions
in the device's configuration space for direct access from userspace.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
In order to support completions that arrive directly to the user,
the driver needs to supply the user with the first available msix
interrupt available.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Instead of having it hard-coded as a define, pass it to the user
in runtime.
Signed-off-by: Moti Haimovski <mhaimovski@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
In order to support the staged submission feature, user must be
allowed to use the same CS sequence for all submissions in the
same staged submission.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Adding userspace support for the MC (Management Complex) means exporting
an ioctl capable device file representing the root resource container.
This new functionality in the fsl-mc bus driver intends to provide
userspace applications an interface to interact with the MC firmware.
Commands that are composed in userspace are sent to the MC firmware
through the FSL_MC_SEND_MC_COMMAND ioctl. By default the implicit MC
I/O portal is used for this operation, but if the implicit one is busy,
a dynamic portal is allocated and then freed upon execution.
The command received through the ioctl interface is checked against a
known whitelist of accepted MC commands. Commands that attempt a change
in hardware configuration will need CAP_NET_ADMIN, while commands used
in debugging do not need it.
Acked-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/20210114170752.2927915-4-ciorneiioana@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Intel Moorestown and Medfield are quite old Intel Atom based
32-bit platforms, which were in limited use in some Android phones,
tablets and consumer electronics more than eight years ago.
There are no bugs or problems ever reported outside from Intel
for breaking any of that platforms for years. It seems no real
users exists who run more or less fresh kernel on it. The commit
05f4434bc1 ("ASoC: Intel: remove mfld_machine") also in align
with this theory.
Due to above and to reduce a burden of supporting outdated drivers
we remove the support of outdated platforms completely.
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210122114358.39299-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Introduce mhi_get_free_desc_count() API to return number
of TREs available to queue buffer. MHI clients can use this
API to know before hand if ring is full without calling queue
API.
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1610388462-16322-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
The Qualcomm SDX55 platform has several bus fabrics that could be
controlled and tuned dynamically over RPMh according to the bandwidth
demand.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210121053254.8355-2-manivannan.sadhasivam@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
When create the VMCI queue pair tracking data structures on the host
side, the IOCTL for creating the VMCI queue pair didn't validate
the queue pair size parameters. This change adds checks for this.
This avoids a memory allocation issue in qp_host_alloc_queue, as
reported by nslusarek@gmx.net. The check in qp_host_alloc_queue
has also been updated to enforce the maximum queue pair size
as defined by VMCI_MAX_GUEST_QP_MEMORY.
The fix has been verified using sample code supplied by
nslusarek@gmx.net.
Reported-by: nslusarek@gmx.net
Reviewed-by: Vishnu Dasa <vdasa@vmware.com>
Signed-off-by: Jorgen Hansen <jhansen@vmware.com>
Link: https://lore.kernel.org/r/1611160420-30573-1-git-send-email-jhansen@vmware.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add user space api for bcm-vk driver.
Provide ioctl api to load images and issue reset command to card.
FW status registers in PCI BAR space also defined as part
of API so that user space is able to interpret these memory locations
as needed via direct PCIe access.
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Scott Branden <scott.branden@broadcom.com>
Link: https://lore.kernel.org/r/20210120175827.14820-2-scott.branden@broadcom.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----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=Bblh
-----END PGP SIGNATURE-----
Merge tag 'block-5.11-2021-01-24' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull request from Christoph:
- fix a status code in nvmet (Chaitanya Kulkarni)
- avoid double completions in nvme-rdma/nvme-tcp (Chao Leng)
- fix the CMB support to cope with NVMe 1.4 controllers (Klaus Jensen)
- fix PRINFO handling in the passthrough ioctl (Revanth Rajashekar)
- fix a double DMA unmap in nvme-pci
- lightnvm error path leak fix (Pan)
- MD pull request from Song:
- Flush request fix (Xiao)
* tag 'block-5.11-2021-01-24' of git://git.kernel.dk/linux-block:
lightnvm: fix memory leak when submit fails
nvme-pci: fix error unwind in nvme_map_data
nvme-pci: refactor nvme_unmap_data
md: Set prev_flush_start and flush_bio in an atomic way
nvmet: set right status on error in id-ns handler
nvme-pci: allow use of cmb on v1.4 controllers
nvme-tcp: avoid request double completion for concurrent nvme_tcp_timeout
nvme-rdma: avoid request double completion for concurrent nvme_rdma_timeout
nvme: check the PRINFO bit before deciding the host buffer length
Here are some small driver core fixes for 5.11-rc5 that resolve some
reported problems:
- revert of a -rc1 patch that was causing problems with some
machines
- device link device name collision problem fix (busses only
have to name devices unique to their bus, not unique to all
busses)
- kernfs splice bugfixes to resolve firmware loading problems
for Qualcomm systems.
- other tiny driver core fixes for minor issues reported.
All of these have been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCYA1qGw8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ymd2ACgzVEpWJddtLNz+9guU9kAIIPcNboAn2GreCle
vgNkgCapi2ZjYtWBk8Cl
=YNIw
-----END PGP SIGNATURE-----
Merge tag 'driver-core-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are some small driver core fixes for 5.11-rc5 that resolve some
reported problems:
- revert of a -rc1 patch that was causing problems with some machines
- device link device name collision problem fix (busses only have to
name devices unique to their bus, not unique to all busses)
- kernfs splice bugfixes to resolve firmware loading problems for
Qualcomm systems.
- other tiny driver core fixes for minor issues reported.
All of these have been in linux-next with no reported problems"
* tag 'driver-core-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
driver core: Fix device link device name collision
driver core: Extend device_is_dependent()
kernfs: wire up ->splice_read and ->splice_write
kernfs: implement ->write_iter
kernfs: implement ->read_iter
Revert "driver core: Reorder devices on successful probe"
Driver core: platform: Add extra error check in devm_platform_get_irqs_affinity()
drivers core: Free dma_range_map when driver probe failed
single CPU vs such which are affine to only one CPU, mark per-cpu workqueue
threads as such and make sure that marking "survives" CPU hotplug. Fix CPU
hotplug issues with such kthreads.
- A fix to not push away tasks on CPUs coming online.
- Have workqueue CPU hotplug code use cpu_possible_mask when breaking affinity
on CPU offlining so that pending workers can finish on newly arrived onlined
CPUs too.
- Dump tasks which haven't vacated a CPU which is currently being unplugged.
- Register a special scale invariance callback which gets called on resume
from RAM to read out APERF/MPERF after resume and thus make the schedutil
scaling governor more precise.
-----BEGIN PGP SIGNATURE-----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=2DAF
-----END PGP SIGNATURE-----
Merge tag 'sched_urgent_for_v5.11_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:
- Correct the marking of kthreads which are supposed to run on a
specific, single CPU vs such which are affine to only one CPU, mark
per-cpu workqueue threads as such and make sure that marking
"survives" CPU hotplug. Fix CPU hotplug issues with such kthreads.
- A fix to not push away tasks on CPUs coming online.
- Have workqueue CPU hotplug code use cpu_possible_mask when breaking
affinity on CPU offlining so that pending workers can finish on newly
arrived onlined CPUs too.
- Dump tasks which haven't vacated a CPU which is currently being
unplugged.
- Register a special scale invariance callback which gets called on
resume from RAM to read out APERF/MPERF after resume and thus make
the schedutil scaling governor more precise.
* tag 'sched_urgent_for_v5.11_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Relax the set_cpus_allowed_ptr() semantics
sched: Fix CPU hotplug / tighten is_per_cpu_kthread()
sched: Prepare to use balance_push in ttwu()
workqueue: Restrict affinity change to rescuer
workqueue: Tag bound workers with KTHREAD_IS_PER_CPU
kthread: Extract KTHREAD_IS_PER_CPU
sched: Don't run cpu-online with balance_push() enabled
workqueue: Use cpu_possible_mask instead of cpu_active_mask to break affinity
sched/core: Print out straggler tasks in sched_cpu_dying()
x86: PM: Register syscore_ops for scale invariance
happening every 2 seconds instead of the intended every 11 minutes.
- Get rid of now unused get_seconds().
-----BEGIN PGP SIGNATURE-----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=fFOL
-----END PGP SIGNATURE-----
Merge tag 'timers_urgent_for_v5.11_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Borislav Petkov:
- Fix an integer overflow in the NTP RTC synchronization which led to
the latter happening every 2 seconds instead of the intended every 11
minutes.
- Get rid of now unused get_seconds().
* tag 'timers_urgent_for_v5.11_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
ntp: Fix RTC synchronization on 32-bit platforms
timekeeping: Remove unused get_seconds()
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCYA1opwAKCRCRxhvAZXjc
osnpAP4wjExvtwgh1eA7IgBPtAFzL1EPK2lrv7WM6yuMJNh23wEAxU+quoNrBT7U
R5UQvmXi2SwxjeGXR/BTLq/HU9rSJA4=
=6YJX
-----END PGP SIGNATURE-----
Merge tag 'for-linus-2021-01-24' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull misc fixes from Christian Brauner:
- Jann reported sparse complaints because of a missing __user
annotation in a helper we added way back when we added
pidfd_send_signal() to avoid compat syscall handling. Fix it.
- Yanfei replaces a reference in a comment to the _do_fork() helper I
removed a while ago with a reference to the new kernel_clone()
replacement
- Alexander Guril added a simple coding style fix
* tag 'for-linus-2021-01-24' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
kthread: remove comments about old _do_fork() helper
Kernel: fork.c: Fix coding style: Do not use {} around single-line statements
signal: Add missing __user annotation to copy_siginfo_from_user_any
There is a need to distinguish geniune per-cpu kthreads from kthreads
that happen to have a single CPU affinity.
Geniune per-cpu kthreads are kthreads that are CPU affine for
correctness, these will obviously have PF_KTHREAD set, but must also
have PF_NO_SETAFFINITY set, lest userspace modify their affinity and
ruins things.
However, these two things are not sufficient, PF_NO_SETAFFINITY is
also set on other tasks that have their affinities controlled through
other means, like for instance workqueues.
Therefore another bit is needed; it turns out kthread_create_per_cpu()
already has such a bit: KTHREAD_IS_PER_CPU, which is used to make
kthread_park()/kthread_unpark() work correctly.
Expose this flag and remove the implicit setting of it from
kthread_create_on_cpu(); the io_uring usage of it seems dubious at
best.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
Tested-by: Valentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210121103506.557620262@infradead.org
The device link device's name was of the form:
<supplier-dev-name>--<consumer-dev-name>
This can cause name collision as reported here [1] as device names are
not globally unique. Since device names have to be unique within the
bus/class, add the bus/class name as a prefix to the device names used to
construct the device link device name.
So the devuce link device's name will be of the form:
<supplier-bus-name>:<supplier-dev-name>--<consumer-bus-name>:<consumer-dev-name>
[1] - https://lore.kernel.org/lkml/20201229033440.32142-1-michael@walle.cc/
Fixes: 287905e68d ("driver core: Expose device link details in sysfs")
Cc: stable@vger.kernel.org
Reported-by: Michael Walle <michael@walle.cc>
Tested-by: Michael Walle <michael@walle.cc>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20210110175408.1465657-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If controller driver has specified the irq_flags, mhi uses this specified
irq_flags. Otherwise, mhi uses default irq_flags.
The purpose of this change is to support one MSI vector for QCA6390.
MHI will use one same MSI vector too in this scenario.
In case of one MSI vector, IRQ_NO_BALANCING is needed when irq handler
is requested. The reason is if irq migration happens, the msi_data may
change too. However, the msi_data is already programmed to QCA6390
hardware during initialization phase. This msi_data inconsistence will
result in crash in kernel.
Another issue is in case of one MSI vector, IRQF_NO_SUSPEND will trigger
WARNINGS because QCA6390 wants to disable the IRQ during the suspend.
To avoid above two issues, QCA6390 driver specifies the irq_flags in case
of one MSI vector when mhi_register_controller is called.
Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Some parameters may have to be determined at runtime.
It is the case for the event ring MSI vector.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
and can trees.
Current release - regressions:
- nfc: nci: fix the wrong NCI_CORE_INIT parameters
Current release - new code bugs:
- bpf: allow empty module BTFs
Previous releases - regressions:
- bpf: fix signed_{sub,add32}_overflows type handling
- tcp: do not mess with cloned skbs in tcp_add_backlog()
- bpf: prevent double bpf_prog_put call from bpf_tracing_prog_attach
- bpf: don't leak memory in bpf getsockopt when optlen == 0
- tcp: fix potential use-after-free due to double kfree()
- mac80211: fix encryption issues with WEP
- devlink: use right genl user_ptr when handling port param get/set
- ipv6: set multicast flag on the multicast route
- tcp: fix TCP_USER_TIMEOUT with zero window
Previous releases - always broken:
- bpf: local storage helpers should check nullness of owner ptr passed
- mac80211: fix incorrect strlen of .write in debugfs
- cls_flower: call nla_ok() before nla_next()
- skbuff: back tiny skbs with kmalloc() in __netdev_alloc_skb() too
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-----BEGIN PGP SIGNATURE-----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=KyY7
-----END PGP SIGNATURE-----
Merge tag 'net-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes for 5.11-rc5, including fixes from bpf, wireless, and
can trees.
Current release - regressions:
- nfc: nci: fix the wrong NCI_CORE_INIT parameters
Current release - new code bugs:
- bpf: allow empty module BTFs
Previous releases - regressions:
- bpf: fix signed_{sub,add32}_overflows type handling
- tcp: do not mess with cloned skbs in tcp_add_backlog()
- bpf: prevent double bpf_prog_put call from bpf_tracing_prog_attach
- bpf: don't leak memory in bpf getsockopt when optlen == 0
- tcp: fix potential use-after-free due to double kfree()
- mac80211: fix encryption issues with WEP
- devlink: use right genl user_ptr when handling port param get/set
- ipv6: set multicast flag on the multicast route
- tcp: fix TCP_USER_TIMEOUT with zero window
Previous releases - always broken:
- bpf: local storage helpers should check nullness of owner ptr passed
- mac80211: fix incorrect strlen of .write in debugfs
- cls_flower: call nla_ok() before nla_next()
- skbuff: back tiny skbs with kmalloc() in __netdev_alloc_skb() too"
* tag 'net-5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (52 commits)
net: systemport: free dev before on error path
net: usb: cdc_ncm: don't spew notifications
net: mscc: ocelot: Fix multicast to the CPU port
tcp: Fix potential use-after-free due to double kfree()
bpf: Fix signed_{sub,add32}_overflows type handling
can: peak_usb: fix use after free bugs
can: vxcan: vxcan_xmit: fix use after free bug
can: dev: can_restart: fix use after free bug
tcp: fix TCP socket rehash stats mis-accounting
net: dsa: b53: fix an off by one in checking "vlan->vid"
tcp: do not mess with cloned skbs in tcp_add_backlog()
selftests: net: fib_tests: remove duplicate log test
net: nfc: nci: fix the wrong NCI_CORE_INIT parameters
sh_eth: Fix power down vs. is_opened flag ordering
net: Disable NETIF_F_HW_TLS_RX when RXCSUM is disabled
netfilter: rpfilter: mask ecn bits before fib lookup
udp: mask TOS bits in udp_v4_early_demux()
xsk: Clear pool even for inactive queues
bpf: Fix helper bpf_map_peek_elem_proto pointing to wrong callback
sh_eth: Make PHY access aware of Runtime PM to fix reboot crash
...
A dummy zero bit is sent preceding the data during a read transfer by the
Microchip 93LC46B eeprom (section 2.7 of[1]). This results in right shift
of data during a read. In order to ignore this bit a quirk can be added to
send an extra zero bit after the read address.
Add a quirk to ignore the zero bit sent before data by adding a zero bit
after the read address.
[1] - https://www.mouser.com/datasheet/2/268/20001749K-277859.pdf
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Link: https://lore.kernel.org/r/20210105105817.17644-3-a-govindraju@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
RTL8156 sends notifications about every 32ms.
Only display/log notifications when something changes.
This issue has been reported by others:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1832472https://lkml.org/lkml/2020/8/27/1083
...
[785962.779840] usb 1-1: new high-speed USB device number 5 using xhci_hcd
[785962.929944] usb 1-1: New USB device found, idVendor=0bda, idProduct=8156, bcdDevice=30.00
[785962.929949] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=6
[785962.929952] usb 1-1: Product: USB 10/100/1G/2.5G LAN
[785962.929954] usb 1-1: Manufacturer: Realtek
[785962.929956] usb 1-1: SerialNumber: 000000001
[785962.991755] usbcore: registered new interface driver cdc_ether
[785963.017068] cdc_ncm 1-1:2.0: MAC-Address: 00:24:27:88:08:15
[785963.017072] cdc_ncm 1-1:2.0: setting rx_max = 16384
[785963.017169] cdc_ncm 1-1:2.0: setting tx_max = 16384
[785963.017682] cdc_ncm 1-1:2.0 usb0: register 'cdc_ncm' at usb-0000:00:14.0-1, CDC NCM, 00:24:27:88:08:15
[785963.019211] usbcore: registered new interface driver cdc_ncm
[785963.023856] usbcore: registered new interface driver cdc_wdm
[785963.025461] usbcore: registered new interface driver cdc_mbim
[785963.038824] cdc_ncm 1-1:2.0 enx002427880815: renamed from usb0
[785963.089586] cdc_ncm 1-1:2.0 enx002427880815: network connection: disconnected
[785963.121673] cdc_ncm 1-1:2.0 enx002427880815: network connection: disconnected
[785963.153682] cdc_ncm 1-1:2.0 enx002427880815: network connection: disconnected
...
This is about 2KB per second and will overwrite all contents of a 1MB
dmesg buffer in under 10 minutes rendering them useless for debugging
many kernel problems.
This is also an extra 180 MB/day in /var/logs (or 1GB per week) rendering
the majority of those logs useless too.
When the link is up (expected state), spew amount is >2x higher:
...
[786139.600992] cdc_ncm 2-1:2.0 enx002427880815: network connection: connected
[786139.632997] cdc_ncm 2-1:2.0 enx002427880815: 2500 mbit/s downlink 2500 mbit/s uplink
[786139.665097] cdc_ncm 2-1:2.0 enx002427880815: network connection: connected
[786139.697100] cdc_ncm 2-1:2.0 enx002427880815: 2500 mbit/s downlink 2500 mbit/s uplink
[786139.729094] cdc_ncm 2-1:2.0 enx002427880815: network connection: connected
[786139.761108] cdc_ncm 2-1:2.0 enx002427880815: 2500 mbit/s downlink 2500 mbit/s uplink
...
Chrome OS cannot support RTL8156 until this is fixed.
Signed-off-by: Grant Grundler <grundler@chromium.org>
Reviewed-by: Hayes Wang <hayeswang@realtek.com>
Link: https://lore.kernel.org/r/20210120011208.3768105-1-grundler@chromium.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The previous commit 32efcc06d2 ("tcp: export count for rehash attempts")
would mis-account rehashing SNMP and socket stats:
a. During handshake of an active open, only counts the first
SYN timeout
b. After handshake of passive and active open, stop updating
after (roughly) TCP_RETRIES1 recurring RTOs
c. After the socket aborts, over count timeout_rehash by 1
This patch fixes this by checking the rehash result from sk_rethink_txhash.
Fixes: 32efcc06d2 ("tcp: export count for rehash attempts")
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Link: https://lore.kernel.org/r/20210119192619.1848270-1-ycheng@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Avoid exposing parent of root directory in NFSv3 READDIRPLUS results
- Fix a tracepoint change that went in the initial 5.11 merge
-----BEGIN PGP SIGNATURE-----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=Qf5O
-----END PGP SIGNATURE-----
Merge tag 'nfsd-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
- Avoid exposing parent of root directory in NFSv3 READDIRPLUS results
- Fix a tracepoint change that went in the initial 5.11 merge
* tag 'nfsd-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
SUNRPC: Move the svc_xdr_recvfrom tracepoint again
nfsd4: readdirplus shouldn't return parent of export
Export mdiobb_read() and mdiobb_write(), so Ethernet controller drivers
can call them from their MDIO read/write wrappers.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
