Schedule work to query the wakeup reasons, and
disconnect in some cases (e.g. beacon loss).
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
We need to ask the fw to wake up on incoming packets (that
pass the filters).
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Add d0i3_refs debugfs file that prints the currently taken
mvm D0i3 refs.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
We don't want to go into D0i3, when P2P_CLI, AP (including
GO) or IBSS interfaces are running, so take appropriate
references.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Take a reference when ROC command is started, and
unref it on completion.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Take a reference when starting to scan and release it on completion.
Note that if the scan is cancelled/aborted, a completion will still be
sent up.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Hold a bitmap of taken references, according to the
reference reason (e.g. down, scan).
This will allow us validate our state and add some debugfs
entries later on.
Unref the transport when the FW is fully initialized,
allowing it to go into a low power mode.
Disallow the transition to low-power while recovery is in
progress.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Upon D0i3 entry/exit, iterate over the active interfaces
and configure them appropriately.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Configure skip-over-dtim and beacon filtering on D0i3
enter/exit.
Since the D0i3 entry/exit commands require different
command flags (e.g. CMD_HIGH_PRIORITY), add a new parameter
to the functions being called, and make the current users
pass CMD_SYNC.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
When the bus is in D0i3, we can't send regular commands to
the firmware. This means that we need to add a state to
remember what is our d0i3 state and make sure that only
d0i3 exit commands can be sent.
Add flags to CMD_ flags and transport status for this
purpose.
Commands with CMD_HIGH_PRIO set are queued at the head of
the command queue, behind other high priority commands.
Commands with CMD_SEND_IN_IDLE set can be sent while the
transport is idle (without taking rpm reference).
Commands with CMD_MAKE_TRANS_IDLE set indicate that command
completion should mark the transport as idle (and release
the bus).
Commands with CMD_WAKE_UP_TRANS set instruct the transport
to exit from idle when this command is completed.
The transport is marked as idle (STATUS_TRANS_IDLE) when
the FW enters D0i3 state. This bit is cleared when it
enters D0 state again.
Process only commands with CMD_SEND_IN_IDLE flag while the
transport is idle. Other enqueued commands will be
processed only later, right after exiting D0i3.
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Add new enter_d0i3 and exit_d0i3 ops that
will be called by the transport on D0i3 enter/exit.
Each one of these ops will include the host commands
mentionned in the previous patch.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
D0i3 is bus power saving feature. It involves the
firmware - the driver needs to send a list of commands
to the firmware before entering this state. Wake up from
d0i3 also requires a few commands to the firmware.
The trigger to enter D0i3 is an idle timeout that will be
implemented later and will most probably rely on RUNTIME_PM
infrastructure.
In order to prevent entrance to D0i3 in critical flows, we
implement here a reference infrastructure. When a ref is
taken, we can't enter D0i3.
PCIe does't support D0i3.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The tx backoff settings used by the thermal throttling mechanism can
also be used for enforcing a limit on the power consumption of the module.
Handle the platform PCIe power limitation by translating the limit
(measured in mw) to its respective tx backoff value. The translation is
module specific.
The resulting tx backoff value is sent to the ucode, and also serves as the
minimal backoff value that can be set by the thermal throttling mechanism.
Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Some platforms may have power limitations on PCIe cards connected to
specific root ports.
This information is encoded as part of the ACPI tables, for instance:
<snip>
Name (SPLX, Package (0x02)
{
Zero,
Package (0x03)
{
0x07,
0x00000500,
0x80000000
}
})
Method (SPLC, 0, Serialized)
{
Return (SPLX)
}
</snip>
The structure returned contains the domain type, the default power
limitation and the default time window (reserved for future use).
Upon PCI probing, call the relevant ACPI method, parse the returned
structure, and save the power limitation.
Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Divide the maximal quota between all the data interfaces even in the
case of a single low latency binding without any other non low latency
interfaces, so that afterwards the quota allocation (which considers
the number of data interfaces) will be correct.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Currently the quota remainder was added to the first binding, although
it is possible that this was not a data binding (only the P2P_DEVICE
interface is part of the binding).
Fix this by adding the remainder to the first binding that was actually
allocated quota.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This makes the code a little bit longer as zero-extension
has to be done (mov vs. movzwl), but that's miniscule and
the space saving is significant, about 600 bytes in DVM
and 700 bytes in MVM, so the cache effect should be worth
the few bytes more code.
While at it, remove two spurious blank lines in variable
declaration blocks.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This will be useful during tests done on the physical layer.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Allow reading and setting bcast filtering configuration
through debugfs.
By default, mvm->bcast_filters is used for setting
the bcast filtering configuration (these filters
will be configured for each associated station).
For testing purposes, allow overriding this configuration,
and setting the bcast filtering configuration manually.
The following debugfs keys can be used:
* bcast_filtering/override - use debugfs values instead
of default configuration
* bcast_filtering/filters - set filters (+ attributes)
* bcast_filtering/macs - per-mac bcast filtering
configuration (policy + attached filters)
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Add our ip as a new attribute to the bcast filtering
configuration (i.e. check the dest ip field of the
arp request).
Add bcast filter to pass incoming dhcp offer
broadcast frames as well (for sta vifs).
In order to support such dynamic configuration,
use the reserved1 field as a bitmap for driver internal
flags (which will indicate we want to configure the ip
in this attribute), and reconfigure the bcast
filtering on BSS_CHANGED_ARP_FILTER indication.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Configure arp request broadcast filter if this
option is enabled, in order to allow only arp
request broadcasts to pass-in.
(A following patch will make this filter even narrower
by limiting the arp request to our own ip)
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Broadcast filtering allows dropping broadcast
frames that don't match the configured patterns.
Use predefined filters, and configure them for
each associated station vif.
There is no need to optimize and attach the same
filter to multiple vifs, as a following patch
will configure each filter to have per-vif unique
values.
Configure the bcast filtering on assoc changes.
Add a new IWLWIFI_BCAST_FILTERING Kconfig option
in order to enable broadcast filtering.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
As a debug tool, we dump the SRAM from the device when an
error occurs. The main users of this want it in a different
format, so change the format to suit their needs.
Also - add a short delay between the prints to make sure
that the user space logger can catch up.
This happens only when the firmware asserts, and only when
fw_restart is set to 0 which is typically a testing
configuration.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Based on the Bluetooth activity grading, we can stop using
the shared antenna and ask the stations to honor the new
SMPS state.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
If a vif is in low latency mode, it should be in primary
channel.
Also tell BT Coex about the change when a vif enters or
exits low latency mode.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Limit the scheduling duration of bindings without a low-latency
interface in the firmware, this prevents those bindings from
occupying the medium for a period of time longer than what we
want for the other interfaces in low-latency mode.
As older firmware doesn't do anything with the max_duration field
and ignores it completely, there's no need for a firmware flag.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
If there is/are interface(s) in low-latency mode, reserve a
percentage (currently 64%) of the quota for that binding to
improve the quality of service for those interfaces. However,
if there's more than one binding that has low-latency, then
give up and don't reserve, we can't allocate more than 100%.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
While an interface is in low-latency mode, for now powersave
should be disabled for it, so take low-latency into account
in the powersave code and force powersave recalculation when
low-latency mode changes.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
For various traffic use cases, we want to be able to treat multi-
channel scenarios differently. Introduce a low-latency framework
that currently only has a debugfs file to enable low-latency mode,
but can later be extended.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Notify scan completed if fw_restart flow isn't going to be run.
Otherwise, the scan will stay stack forever and mac80211 will
not be able to remove the interface.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Don't stop scheduled scan before reporting HW restart;
mac80211 was changed to reschedule it after reconfigure.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
In iwl_pcie_int_cause_non_ict, trans_pcie is used for lockdep
purposes only. Since this might not be enabled, trans_pcie
finds itself without user leading to a complaint from gcc.
Avoid using trans_pcie by inlining IWL_TRANS_GET_PCIE_TRANS.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Since we use IWL_MVM_STATION_COUNT all over the driver, we
need to make sure that it is the right constant to look at.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
We somtimes need to fetch the iwl_mvm_sta structure from a
station index - provide a helper to do that.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwlwifi-7260-8.ucode has been release. Warn if it is not
on the file system.
iwlwifi-7260-7.ucode is still supported for another kernel
version.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The code seems fine, as buf won't be assigned when an error
is returned, but checking for the error first is easier to
understand.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Also handle the bypass mode in which the second CPU doesn't
interfere.
Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This configuration is invalid for this family.
Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This register is not present in 8000 family devices.
There is prph register instead.
Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
APMG HW block was removed in this NIC, hence, no need to
configure it.
Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The identification of the hardware section in the NVM
of new devices has been changed, hence the need to add it
to iwl_cfg and adapt the code that uses this value
accordingly.
Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Newer firmware will support uAPSD clients in AP/GO mode, so complete
the driver support for it. The way it works is described in comments
in the code, but basically the driver just has to pass down all the
mac80211 requests and do accounting on agg/non-agg queues properly.
For older firmware, this doesn't change anything as it ignores the
fields used by the new firmware, and we only advertise uAPSD support
when the firmware does.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Pull drm updates from Dave Airlie:
"Been a bit busy, first week of kids school, and waiting on other trees
to go in before I could send this, so its a bit later than I'd
normally like.
Highlights:
- core:
timestamp fixes, lots of misc cleanups
- new drivers:
bochs virtual vga
- vmwgfx:
major overhaul for their nextgen virt gpu.
- i915:
runtime D3 on HSW, watermark fixes, power well work, fbc fixes,
bdw is no longer prelim.
- nouveau:
gk110/208 acceleration, more pm groundwork, old overlay support
- radeon:
dpm rework and clockgating for CIK, pci config reset, big endian
fixes
- tegra:
panel support and DSI support, build as module, prime.
- armada, omap, gma500, rcar, exynos, mgag200, cirrus, ast:
fixes
- msm:
hdmi support for mdp5"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (595 commits)
drm/nouveau: resume display if any later suspend bits fail
drm/nouveau: fix lock unbalance in nouveau_crtc_page_flip
drm/nouveau: implement hooks for needed for drm vblank timestamping support
drm/nouveau/disp: add a method to fetch info needed by drm vblank timestamping
drm/nv50: fill in crtc mode struct members from crtc_mode_fixup
drm/radeon/dce8: workaround for atom BlankCrtc table
drm/radeon/DCE4+: clear bios scratch dpms bit (v2)
drm/radeon: set si_notify_smc_display_change properly
drm/radeon: fix DAC interrupt handling on DCE5+
drm/radeon: clean up active vram sizing
drm/radeon: skip async dma init on r6xx
drm/radeon/runpm: don't runtime suspend non-PX cards
drm/radeon: add ring to fence trace functions
drm/radeon: add missing trace point
drm/radeon: fix VMID use tracking
drm: ast,cirrus,mgag200: use drm_can_sleep
drm/gma500: Lock struct_mutex around cursor updates
drm/i915: Fix the offset issue for the stolen GEM objects
DRM: armada: fix missing DRM_KMS_FB_HELPER select
drm/i915: Decouple GPU error reporting from ring initialisation
...
Pull slave-dma updates from Vinod Koul:
- new driver for BCM2835 used in R-pi
- new driver for MOXA ART
- dma_get_any_slave_channel API for DT based systems
- minor fixes and updates spread acrooss driver
[ The fsl-ssi dual fifo mode support addition clashed badly with the
other changes to fsl-ssi that came in through the sound merge. I did
a very rough cut at fixing up the conflict, but Nicolin Chen (author
of both sides) will need to verify and check things ]
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (36 commits)
dmaengine: mmp_pdma: fix mismerge
dma: pl08x: Export pl08x_filter_id
acpi-dma: align documentation with kernel-doc format
dma: fix vchan_cookie_complete() debug print
DMA: dmatest: extend the "device" module parameter to 32 characters
drivers/dma: fix error return code
dma: omap: Set debug level to debugging messages
dmaengine: fix kernel-doc style typos for few comments
dma: tegra: add support for Tegra148/124
dma: dw: use %pad instead of casting dma_addr_t
dma: dw: join split up messages
dma: dw: fix style of multiline comment
dmaengine: k3dma: fix sparse warnings
dma: pl330: Use dma_get_slave_channel() in the of xlate callback
dma: pl330: Differentiate between submitted and issued descriptors
dmaengine: sirf: Add device_slave_caps interface
DMA: Freescale: change BWC from 256 bytes to 1024 bytes
dmaengine: Add MOXA ART DMA engine driver
dmaengine: Add DMA_PRIVATE to BCM2835 driver
dma: imx-sdma: Assign a default script number for ROM firmware cases
...
* Use deferred probing on Chrome OS platforms for the i2c
device registration. This fixes a long-standing race of initialization
of touchpad/screen on Chromebooks.
* Added in platform device registration for pstore console on supported hardware
* Misc smaller fixes (__initdata, module exit cleanup, etc)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform
Pull chrome platform cleanups and improvements from Olof Johansson:
- Use deferred probing on Chrome OS platforms for the i2c device
registration. This fixes a long-standing race of initialization of
touchpad/screen on Chromebooks.
- Added in platform device registration for pstore console on supported
hardware
- Misc smaller fixes (__initdata, module exit cleanup, etc)
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform:
platform/chrome: unregister platform driver/device when module exit
platform/chrome: Make i2c_adapter_names static
platform/chrome: chromeos_laptop - fix incorrect placement of __initdata tag
platform/chrome: chromeos_laptop - Use deferred probing
platform/chrome: chromeos_laptop - Restructure device associations
platform/chrome: Add pstore platform_device
A few patches have been queued up for this merge window:
* Improvements for the ARM-SMMU driver
(IOMMU_EXEC support, IOMMU group support)
* Updates and fixes for the shmobile IOMMU driver
* Various fixes to generic IOMMU code and the
Intel IOMMU driver
* Some cleanups in IOMMU drivers (dev_is_pci() usage)
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Merge tag 'iommu-updates-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU Updates from Joerg Roedel:
"A few patches have been queued up for this merge window:
- improvements for the ARM-SMMU driver (IOMMU_EXEC support, IOMMU
group support)
- updates and fixes for the shmobile IOMMU driver
- various fixes to generic IOMMU code and the Intel IOMMU driver
- some cleanups in IOMMU drivers (dev_is_pci() usage)"
* tag 'iommu-updates-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (36 commits)
iommu/vt-d: Fix signedness bug in alloc_irte()
iommu/vt-d: free all resources if failed to initialize DMARs
iommu/vt-d, trivial: clean sparse warnings
iommu/vt-d: fix wrong return value of dmar_table_init()
iommu/vt-d: release invalidation queue when destroying IOMMU unit
iommu/vt-d: fix access after free issue in function free_dmar_iommu()
iommu/vt-d: keep shared resources when failed to initialize iommu devices
iommu/vt-d: fix invalid memory access when freeing DMAR irq
iommu/vt-d, trivial: simplify code with existing macros
iommu/vt-d, trivial: use defined macro instead of hardcoding
iommu/vt-d: mark internal functions as static
iommu/vt-d, trivial: clean up unused code
iommu/vt-d, trivial: check suitable flag in function detect_intel_iommu()
iommu/vt-d, trivial: print correct domain id of static identity domain
iommu/vt-d, trivial: refine support of 64bit guest address
iommu/vt-d: fix resource leakage on error recovery path in iommu_init_domains()
iommu/vt-d: fix a race window in allocating domain ID for virtual machines
iommu/vt-d: fix PCI device reference leakage on error recovery path
drm/msm: Fix link error with !MSM_IOMMU
iommu/vt-d: use dedicated bitmap to track remapping entry allocation status
...
