linux-stable.git/drivers, branch v4.12.6

drm/vmwgfx: Fix cursor hotspot issue with Wayland on Fedora

2017-08-11T15:34:00+00:00

commit 14979adb0294f04cf6fbbb81555acff9ec1e7c9c upstream.

Parts of commit <8fbf9d92a7bc> (“drm/vmwgfx: Implement the
cursor_set2 callback v2”) were not moved over when we started
atomic mode set development because at that time the DRM did
not support cursor hotspots in the fb struct.

This patch fixes what was not moved over.

Signed-off-by: Sinclair Yeh 
Reviewed-by: Brian Paul 
Tested-by: Brian Paul 
Signed-off-by: Greg Kroah-Hartman

virtio_net: fix truesize for mergeable buffers

2017-08-11T15:33:59+00:00

[ Upstream commit 1daa8790d0280d2c719658e39bd59fce65efa909 ]

Seth Forshee noticed a performance degradation with some workloads.
This turns out to be due to packet drops.  Euan Kemp noticed that this
is because we drop all packets where length exceeds the truesize, but
for some packets we add in extra memory without updating the truesize.
This in turn was kept around unchanged from ab7db91705e95 ("virtio-net:
auto-tune mergeable rx buffer size for improved performance").  That
commit had an internal reason not to account for the extra space: not
enough bits to do it.  No longer true so let's account for the allocated
length exactly.

Many thanks to Seth Forshee for the report and bisecting and Euan Kemp
for debugging the issue.

Fixes: 680557cf79f8 ("virtio_net: rework mergeable buffer handling")
Reported-by: Euan Kemp 
Tested-by: Euan Kemp 
Reported-by: Seth Forshee 
Tested-by: Seth Forshee 
Signed-off-by: Michael S. Tsirkin 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

net: phy: Correctly process PHY_HALTED in phy_stop_machine()

2017-08-11T15:33:59+00:00

[ Upstream commit 7ad813f208533cebfcc32d3d7474dc1677d1b09a ]

Marc reported that he was not getting the PHY library adjust_link()
callback function to run when calling phy_stop() + phy_disconnect()
which does not indeed happen because we set the state machine to
PHY_HALTED but we don't get to run it to process this state past that
point.

Fix this with a synchronous call to phy_state_machine() in order to have
the state machine actually act on PHY_HALTED, set the PHY device's link
down, turn the network device's carrier off and finally call the
adjust_link() function.

Reported-by: Marc Gonzalez 
Fixes: a390d1f379cf ("phylib: convert state_queue work to delayed_work")
Signed-off-by: Florian Fainelli 
Signed-off-by: Marc Gonzalez 
Signed-off-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

net/mlx5: Fix mlx5_add_flow_rules call with correct num of dests

2017-08-11T15:33:59+00:00

[ Upstream commit bcec601f30fb41e9233674942fa4040a6e63657a ]

When adding ethtool steering rule with action DISCARD we wrongly
pass a NULL dest with dest_num 1 to mlx5_add_flow_rules().
What this error seems to have caused is sending VPORT 0
(MLX5_FLOW_DESTINATION_TYPE_VPORT) as the fte dest instead of no dests.
We have fte action correctly set to DROP so it might been ignored
anyways.

To reproduce use:
 # sudo ethtool --config-nfc  flow-type ether \
   dst aa:bb:cc:dd:ee:ff action -1

Fixes: 74491de93712 ("net/mlx5: Add multi dest support")
Signed-off-by: Paul Blakey 
Reviewed-by: Mark Bloch 
Signed-off-by: Saeed Mahameed 
Signed-off-by: Greg Kroah-Hartman

net/mlx5e: Schedule overflow check work to mlx5e workqueue

2017-08-11T15:33:59+00:00

[ Upstream commit f08c39ed0bfb503c7b3e013cd40d036ce6a0941a ]

This is done in order to ensure that work will not run after the cleanup.

Fixes: ef9814deafd0 ('net/mlx5e: Add HW timestamping (TS) support')
Signed-off-by: Eugenia Emantayev 
Signed-off-by: Saeed Mahameed 
Signed-off-by: Greg Kroah-Hartman

net/mlx5e: Fix wrong delay calculation for overflow check scheduling

2017-08-11T15:33:59+00:00

[ Upstream commit d439c84509a510e864fdc6166c760482cd03fc57 ]

The overflow_period is calculated in seconds. In order to use it
for delayed work scheduling translation to jiffies is needed.

Fixes: ef9814deafd0 ('net/mlx5e: Add HW timestamping (TS) support')
Signed-off-by: Eugenia Emantayev 
Signed-off-by: Saeed Mahameed 
Signed-off-by: Greg Kroah-Hartman

net/mlx5e: Add missing support for PTP_CLK_REQ_PPS request

2017-08-11T15:33:59+00:00

[ Upstream commit cf5033089b078303b102b65e3ccbbfa3ce0f4367 ]

Add the missing option to enable the PTP_CLK_PPS function.
In this case pin should be configured as 1PPS IN first and
then it will be connected to PPS mechanism.
Events will be reported as PTP_CLOCK_PPSUSR events to relevant sysfs.

Fixes: ee7f12205abc ('net/mlx5e: Implement 1PPS support')
Signed-off-by: Eugenia Emantayev 
Signed-off-by: Saeed Mahameed 
Signed-off-by: Greg Kroah-Hartman

net/mlx5e: Change 1PPS out scheme

2017-08-11T15:33:58+00:00

[ Upstream commit 4272f9b88db9223216cdf87314f570f6d81295b4 ]

In order to fix the drift in 1PPS out need to adjust the next pulse.
On each 1PPS out falling edge driver gets the event, then the event
handler adjusts the next pulse starting time.

Fixes: ee7f12205abc ('net/mlx5e: Implement 1PPS support')
Signed-off-by: Eugenia Emantayev 
Signed-off-by: Saeed Mahameed 
Signed-off-by: Greg Kroah-Hartman

net/mlx5e: Fix broken disable 1PPS flow

2017-08-11T15:33:58+00:00

[ Upstream commit 49c5031ca6f0628ef973a11b17e463e088bf859e ]

Need to disable the MTPPS and unsubscribe from the pulse events
when user disables the 1PPS functionality.

Fixes: ee7f12205abc ('net/mlx5e: Implement 1PPS support')
Signed-off-by: Eugenia Emantayev 
Signed-off-by: Saeed Mahameed 
Signed-off-by: Greg Kroah-Hartman

net/mlx5e: Add field select to MTPPS register

2017-08-11T15:33:58+00:00

[ Upstream commit fa3676885e3b5be1edfa1b2cc775e20a45b34a19 ]

In order to mark relevant fields while setting the MTPPS register
add field select. Otherwise it can cause a misconfiguration in
firmware.

Fixes: ee7f12205abc ('net/mlx5e: Implement 1PPS support')
Signed-off-by: Eugenia Emantayev 
Signed-off-by: Saeed Mahameed 
Signed-off-by: Greg Kroah-Hartman