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With all the cleanups now, we can rename the structure to
better indicate the functionality. For older devices this
isn't quite accurate, of course, but it's better to have a
name that reflects future use for maintenance.
Add some kernel-doc while at it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20250509104454.2582160-9-miriam.rachel.korenblit@intel.com
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
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Instead of building invalid chandefs on the fly, use only
chandefs throughout and ensure those are valid. Also add
more chandefs that will be needed for new tests.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250430151952.6643fa8773f1.I644e9053d222a772e1d109799c4bfa0677add4d7@changeid
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Currently iwlmld_kunit_add_chanctx receives a band, picks a predefined
static chandef, and creates the chanctx from it.
Change it to receive a bandwidth as well. Otherwise, the bandwidth in
the chanctx/phy will be different than what test specified in the
iwl_mld_kunit_link.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Link: https://patch.msgid.link/20250313002008.85a1285d34cd.Ia71cdcd4241fe73501bc93e3cb2c6bb3f631b9ec@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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To allow setting up association/EMLSR states with more flexibility,
change the relevant functions to receive a new struct, iwl_mld_kunit_link,
which will contain all the link parameters (for now just link id, band
and bandwidth).
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Link: https://patch.msgid.link/20250313002008.f336491ccc4e.I6b727765eb394a3dbb78cea71e356be1bdc4a17c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Due to the iwl_mld_get_chandef_from_chanctx() logic, even after
the OMI handshake to reduce bandwidth the driver wouldn't apply
that to the PHY context, since it always uses the normal, not
the reduced, configuration on 6 GHz (not strictly always, but
OMI will only apply if the original bandwidth is > 80 MHz.) Fix
this by making that selection contingent on AP mode. Refactor
the code a bit to also make it clearer why the min_def isn't
used in that case (for FILS.)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250309073442.2706cbd0b100.Ic34636b1aee81a140eb690fca8139909a58f8e8b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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For each channel context, track the avarage channel load by others in the
driver specific phy data, to be used by EMLSR.
Due to FW limitations, this value is incorrect in EMLSR, so it is
shouldn't be used in EMLSR.
On EMLSR exit, clear it so the wrong value won't be used.
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Link: https://patch.msgid.link/20250309073442.dd443fc5b178.I68b2fed197aae14888159b7a73bf40c2f346f41f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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iwlwifi is the driver of all Intel wifi devices since 2008.
Since then, the hardware has changed a lot, but the firmware
API has changed even more. The need to keep one driver that
supports all those different APIs led us to introduce a new
architecture circa 2012 which allowed us to keep the same
interface to the hardware (DMAs, Tx queues, etc...) with a
new layer to implement the mid-layer between mac80211 and
the firmware. The first component is called the 'transport'
and the latter is called 'operation_mode' a.k.a op_mode.
In 2013 we took advantage of the new architecture to
introduce iwlmvm which allowed us to implement the, then,
new firmware API. This op_mode supports 7260 and up, those
devices supports support at least VHT.
Since then, wifi evolved and so did the firmware. It became
much bigger and took a lot of functionality from the driver.
It became increasingly hard to keep the same op_mode for the
newest devices and we experienced frequent regressions on
older devices. In order to avoid those regressions and keep
the code maintainable, we decided it was about time to start
a new op_mode.
iwlmld is a new op_mode that supports BE200 or newer if the
firmware being used is 97.ucode or newer. If the user has
an older devices or BE200 with .96.ucode, iwlmvm will be
loaded. Of course, this op_mode selection is seamless.
All the features supported in iwlmvm are supported in
iwlmld besides a few seldom used use cases: injection and
Hotspot 2.0. Those are under work.
A few points about the implementation:
* iwlmld doesn't have any mutexes, it relies on the
wiphy_lock
* iwlmld is more "resource oriented": stations, links and
interfaces are allocated and freed only after all the
relevant flows are completed.
* Firmware notifications' sizes are validated in a more
structured way.
We would love to see this new op_mode merged in 6.15. The
firmware for this new driver (.97.ucode) is not yet publicly
available but it'll be sent very soon.
People eager to get an early version of this firmware can
contact Emmanuel at:
emmanuel.grumbach@intel.com
I've listed the people who directly contributed
code, but many others from various teams have
contributed in other ways.
Co-developed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Co-developed-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Co-developed-by: Daniel Gabay <daniel.gabay@intel.com>
Signed-off-by: Daniel Gabay <daniel.gabay@intel.com>
Co-developed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Co-developed-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Co-developed-by: Yedidya Benshimol <yedidya.ben.shimol@intel.com>
Signed-off-by: Yedidya Benshimol <yedidya.ben.shimol@intel.com>
Co-developed-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Co-developed-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://lore.kernel.org/linux-wireless/20250216094321.537988-1-miriam.rachel.korenblit@intel.com/
[fix Kconfig, fix api/phy.h includes, SPDX tag and coding
style issues, duplicated includes per 0-day robot]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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