virtio: rename virtio_find_vqs_info() to virtio_find_vqs()

Since the original virtio_find_vqs() is no longer present, rename
virtio_find_vqs_info() back to virtio_find_vqs().

Signed-off-by: Jiri Pi

virtio: rename virtio_find_vqs_info() to virtio_find_vqs()

Since the original virtio_find_vqs() is no longer present, rename
virtio_find_vqs_info() back to virtio_find_vqs().

Signed-off-by: Jiri Pirko <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>

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virtio: convert the rest virtio_find_vqs() users to virtio_find_vqs_info()

Instead of passing separate names and callbacks arrays
to virtio_find_vqs(), have one of virtual_queue_info structs and
pas

virtio: convert the rest virtio_find_vqs() users to virtio_find_vqs_info()

Instead of passing separate names and callbacks arrays
to virtio_find_vqs(), have one of virtual_queue_info structs and
pass it to virtio_find_vqs_info().

Suggested-by: Xuan Zhuo <[email protected]>
Signed-off-by: Jiri Pirko <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>

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virtio: input: drop owner assignment

virtio core already sets the .owner, so driver does not need to.

Signed-off-by: Krzysztof Kozlowski <[email protected]>

Message-Id: <20240331-modu

virtio: input: drop owner assignment

virtio core already sets the .owner, so driver does not need to.

Signed-off-by: Krzysztof Kozlowski <[email protected]>

Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>

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virtio: wrap config->reset calls

This will enable cleanups down the road.
The idea is to disable cbs, then add "flush_queued_cbs" callback
as a parameter, this way drivers can flush any work
queued

virtio: wrap config->reset calls

This will enable cleanups down the road.
The idea is to disable cbs, then add "flush_queued_cbs" callback
as a parameter, this way drivers can flush any work
queued after callbacks have been disabled.

Signed-off-by: Michael S. Tsirkin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael S. Tsirkin <[email protected]>

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virtio-input: add multi-touch support

Without multi-touch slots allocated, ABS_MT_SLOT events will be lost by
input_handle_abs_event.

Implementation is based on uinput_create_device.

Signed-off-by

virtio-input: add multi-touch support

Without multi-touch slots allocated, ABS_MT_SLOT events will be lost by
input_handle_abs_event.

Implementation is based on uinput_create_device.

Signed-off-by: Mathias Crombez <[email protected]>
Co-developed-by: Vasyl Vavrychuk <[email protected]>
Signed-off-by: Vasyl Vavrychuk <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael S. Tsirkin <[email protected]>
Reviewed-by: Gerd Hoffmann <[email protected]>

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virtio_input: Prevent EV_MSC/MSC_TIMESTAMP loop storm for MT.

In 'commit 29cc309d8bf1 ("HID: hid-multitouch: forward MSC_TIMESTAMP")',
EV_MSC/MSC_TIMESTAMP is added to each before EV_SYN event. EV_M

virtio_input: Prevent EV_MSC/MSC_TIMESTAMP loop storm for MT.

In 'commit 29cc309d8bf1 ("HID: hid-multitouch: forward MSC_TIMESTAMP")',
EV_MSC/MSC_TIMESTAMP is added to each before EV_SYN event. EV_MSC is
configured as INPUT_PASS_TO_ALL.
In case of a touch device which report MSC_TIMESTAMP:
BE pass EV_MSC/MSC_TIMESTAMP to FE on receiving event from evdev.
FE pass EV_MSC/MSC_TIMESTAMP back to BE.
BE writes EV_MSC/MSC_TIMESTAMP to evdev due to INPUT_PASS_TO_ALL.
BE receives extra EV_MSC/MSC_TIMESTAMP and pass to FE.
>>> Each new frame becomes larger and larger.

Disable EV_MSC/MSC_TIMESTAMP forwarding for MT.

V2: Rebase.

Signed-off-by: Colin Xu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael S. Tsirkin <[email protected]>
Reviewed-by: Gerd Hoffmann <[email protected]>

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virtio_input: Constify id_table

id_table is not modified, so make it const to allow the compiler to put
it in read-only memory.

Signed-off-by: Rikard Falkeborn <[email protected]>
Link: ht

virtio_input: Constify id_table

id_table is not modified, so make it const to allow the compiler to put
it in read-only memory.

Signed-off-by: Rikard Falkeborn <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael S. Tsirkin <[email protected]>
Reviewed-by: David Hildenbrand <[email protected]>

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virtio_input: convert to LE accessors

Virtio input is modern-only. Use LE accessors for config space.

Signed-off-by: Michael S. Tsirkin <[email protected]>

virtio_input: pull in slab.h

In preparation to virtio header changes, include slab.h directly as
this module is using it.

Signed-off-by: Michael S. Tsirkin <[email protected]>

treewide: Add SPDX license identifier for more missed files

Add SPDX license identifiers to all files which:

- Have no license information of any form

- Have MODULE_LICENCE("GPL*") inside which

treewide: Add SPDX license identifier for more missed files

Add SPDX license identifiers to all files which:

- Have no license information of any form

- Have MODULE_LICENCE("GPL*") inside which was used in the initial
scan/conversion to ignore the file

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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virtio: wrap find_vqs

We are going to add more parameters to find_vqs, let's wrap the call so
we don't need to tweak all drivers every time.

Signed-off-by: Michael S. Tsirkin <[email protected]>

virtio: allow drivers to request IRQ affinity when creating VQs

Add a struct irq_affinity pointer to the find_vqs methods, which if set
is used to tell the PCI layer to create the MSI-X vectors for

virtio: allow drivers to request IRQ affinity when creating VQs

Add a struct irq_affinity pointer to the find_vqs methods, which if set
is used to tell the PCI layer to create the MSI-X vectors for our I/O
virtqueues with the proper affinity from the start. Compared to after
the fact affinity hints this gives us an instantly working setup and
allows to allocate the irq descritors node-local and avoid interconnect
traffic. Last but not least this will allow blk-mq queues are created
based on the interrupt affinity for storage drivers.

Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jason Wang <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>

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virtio: make find_vqs() checkpatch.pl-friendly

checkpatch.pl wants arrays of strings declared as follows:

static const char * const names[] = { "vq-1", "vq-2", "vq-3" };

Currently the find_vqs()

virtio: make find_vqs() checkpatch.pl-friendly

checkpatch.pl wants arrays of strings declared as follows:

static const char * const names[] = { "vq-1", "vq-2", "vq-3" };

Currently the find_vqs() function takes a const char *names[] argument
so passing checkpatch.pl's const char * const names[] results in a
compiler error due to losing the second const.

This patch adjusts the find_vqs() prototype and updates all virtio
transports. This makes it possible for virtio_balloon.c, virtio_input.c,
virtgpu_kms.c, and virtio_rpmsg_bus.c to use the checkpatch.pl-friendly
type.

Signed-off-by: Stefan Hajnoczi <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
Acked-by: Bjorn Andersson <[email protected]>

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virtio-input: reset device and detach unused during remove

Spec requires a device reset during cleanup, so do it and avoid warn
in virtio core. And detach unused buffers to avoid memory leak.

Signe

virtio-input: reset device and detach unused during remove

Spec requires a device reset during cleanup, so do it and avoid warn
in virtio core. And detach unused buffers to avoid memory leak.

Signed-off-by: Jason Wang <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>

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Add virtio-input driver.

virtio-input is basically evdev-events-over-virtio, so this driver isn't
much more than reading configuration from config space and forwarding
incoming events to the linux i

Add virtio-input driver.

virtio-input is basically evdev-events-over-virtio, so this driver isn't
much more than reading configuration from config space and forwarding
incoming events to the linux input layer.

Signed-off-by: Gerd Hoffmann <[email protected]>
Acked-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>

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