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At some point a few kernel debug prints started appearing which
indicated something was sending invalid IEs:
"bad VHT capabilities, disabling VHT"
"Invalid HE elem, Disable HE"
Turns out these were being printed because the local hardware
supported HE/VHT but the peer/AP did not. Bad/invalid indicates,
to me at least, that the IE is in some way malformed, not missing.
For the HE print (ieee80211_verify_peer_he_mcs_support) it will
now silently fail if the HE capability element is missing (still
prints if the element size is wrong).
For the VHT print, it has been removed completely and will silently
set the DISABLE_VHT flag which is consistent with how DISABLE_HT
is set.
Signed-off-by: James Prestwood <prestwoj@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Kalle Valo says:
====================
wireless-next patches for v6.1
Few stack changes and lots of driver changes in this round. brcmfmac
has more activity as usual and it gets new hardware support. ath11k
improves WCN6750 support and also other smaller features. And of
course changes all over.
Note: in early September wireless tree was merged to wireless-next to
avoid some conflicts with mac80211 patches, this shouldn't cause any
problems but wanted to mention anyway.
Major changes:
mac80211
- refactoring and preparation for Wi-Fi 7 Multi-Link Operation (MLO)
feature continues
brcmfmac
- support CYW43439 SDIO chipset
- support BCM4378 on Apple platforms
- support CYW89459 PCIe chipset
rtw89
- more work to get rtw8852c supported
- P2P support
- support for enabling and disabling MSDU aggregation via nl80211
mt76
- tx status reporting improvements
ath11k
- cold boot calibration support on WCN6750
- Target Wake Time (TWT) debugfs support for STA interface
- support to connect to a non-transmit MBSSID AP profile
- enable remain-on-channel support on WCN6750
- implement SRAM dump debugfs interface
- enable threaded NAPI on all hardware
- WoW support for WCN6750
- support to provide transmit power from firmware via nl80211
- support to get power save duration for each client
- spectral scan support for 160 MHz
wcn36xx
- add SNR from a received frame as a source of system entropy
* tag 'wireless-next-2022-09-30' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (231 commits)
wifi: rtl8xxxu: Improve rtl8xxxu_queue_select
wifi: rtl8xxxu: Fix AIFS written to REG_EDCA_*_PARAM
wifi: rtl8xxxu: gen2: Enable 40 MHz channel width
wifi: rtw89: 8852b: configure DLE mem
wifi: rtw89: check DLE FIFO size with reserved size
wifi: rtw89: mac: correct register of report IMR
wifi: rtw89: pci: set power cut closed for 8852be
wifi: rtw89: pci: add to do PCI auto calibration
wifi: rtw89: 8852b: implement chip_ops::{enable,disable}_bb_rf
wifi: rtw89: add DMA busy checking bits to chip info
wifi: rtw89: mac: define DMA channel mask to avoid unsupported channels
wifi: rtw89: pci: mask out unsupported TX channels
iwlegacy: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper
ipw2x00: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
wifi: iwlwifi: Track scan_cmd allocation size explicitly
brcmfmac: Remove the call to "dtim_assoc" IOVAR
brcmfmac: increase dcmd maximum buffer size
brcmfmac: Support 89459 pcie
brcmfmac: increase default max WOWL patterns to 16
cw1200: fix incorrect check to determine if no element is found in list
...
====================
Link: https://lore.kernel.org/r/20220930150413.A7984C433D6@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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No conflicts.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 6911458dc428 ("wifi: mac80211: mlme: refactor assoc success
handling") moved the per-link setup out of ieee80211_assoc_success() into a
new function ieee80211_assoc_config_link() but missed to remove the unlock
of 'sta_mtx' in case of HE capability/operation missing on HE AP, which
leads to a double unlock:
ieee80211_assoc_success() {
...
ieee80211_assoc_config_link() {
...
if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) &&
(!elems->he_cap || !elems->he_operation)) {
mutex_unlock(&sdata->local->sta_mtx);
...
}
...
}
...
mutex_unlock(&sdata->local->sta_mtx);
...
}
Fixes: 6911458dc428 ("wifi: mac80211: mlme: refactor assoc success handling")
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Link: https://lore.kernel.org/r/20220925143420.784975-1-rafaelmendsr@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Commit 98b0b467466c ("wifi: mac80211: mlme: use correct link_sta")
switched to link station instead of deflink and added some checks to do
that, which are done with the 'sta_mtx' mutex held. However, the error
path of these checks does not unlock 'sta_mtx' before returning.
Fixes: 98b0b467466c ("wifi: mac80211: mlme: use correct link_sta")
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Link: https://lore.kernel.org/r/20220924184042.778676-1-rafaelmendsr@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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drivers/net/ethernet/freescale/fec.h
7d650df99d52 ("net: fec: add pm_qos support on imx6q platform")
40c79ce13b03 ("net: fec: add stop mode support for imx8 platform")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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On secondary MLO links, I forgot to set the beacon interval
and DTIM period, fix that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add a link_id parameter to ieee80211_nullfunc_get() to be
able to obtain a correctly addressed frame.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In order to let the driver select active links and properly
make multi-link connections, as a first step isolate the
driver from inactive links, and set the active links to be
only the association link for client-side interfaces. For
AP side nothing changes since APs always have to have all
their links active.
To simplify things, update the for_each_sta_active_link()
API to include the appropriate vif pointer.
This also implies not allocating a chanctx for an inactive
link, which requires a few more changes.
Since we now no longer try to program multiple links to the
driver, remove the check in the MLME code.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Merge wireless/main to get the rx.link fix, which is needed
for further work in this area.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Refactor the code to apply QoS settings to the driver so
we can call it on link switch.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Right now, we assign the link address only after we add
the link to the driver, which is quite obviously wrong.
It happens to work in many cases because it gets updated
immediately, and then link_conf updates may update it,
but it's clearly not really right.
Set the link address during ieee80211_mgd_setup_link()
so it's set before telling the driver about the link.
Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We don't need the sdata argument, and it doesn't make any
sense for a direct conversion from one value to another,
so just remove the argument
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We haven't tried this yet, and it's not very likely to
work well right now, so for now disable 4-addr use on
interfaces that are MLDs.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20220902161143.f2e4cc2efaa1.I5924e8fb44a2d098b676f5711b36bbc1b1bd68e2@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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If we hit an authentication or association timeout, we only
release the chanctx for the deflink, and the other link(s)
are released later by ieee80211_vif_set_links(), but we're
not locking this correctly.
Fix the locking here while releasing the channels and links.
Change-Id: I9e08c1a5434592bdc75253c1abfa6c788f9f39b1
Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In the prep_channel error case we didn't release the deflink
channel leaving it to be left around. Fix that.
Change-Id: If0dfd748125ec46a31fc6045a480dc28e03723d2
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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If we add 6 GHz capability in MLO, we cannot use the SMPS
mode from the deflink. Pass it separately instead since on
a second link we don't even have a link data struct yet.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add link_id parameter to cfg80211_ch_switch_started_notify() to allow
driver to indicate on which link channel switch started on MLD.
Send the data to userspace so it knows as well.
Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
Link: https://lore.kernel.org/r/20220722131143.3438042-1-quic_vjakkam@quicinc.com
Link: https://lore.kernel.org/r/20220722131143.3438042-2-quic_vjakkam@quicinc.com
[squash two patches]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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For AP/non-AP the EHT MCS/NSS subfield size differs, the
4-octet subfield is only used for 20 MHz-only non-AP STA.
Pass an argument around everywhere to be able to parse it
properly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Draft P802.11be_D2.1, section 35.3.17 states that the EML Capabilities
Field shouldn't be included in case the device doesn't have support for
EMLSR or EMLMR.
Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When queuing frames to an interface store the link ID we
determined (which possibly came from the driver in the
RX status in the first place) in the RX status, and use
it in the MLME code to send probe responses, beacons and
CSA frames to the right link.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We've already freed the assoc_data at this point, so need
to use another copy of the AP (MLD) address instead.
Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In MLO we shouldn't call ieee80211_bss_info_change_notify(),
call that only (for backward compatibility) without MLO, and
otherwise ieee80211_vif_cfg_change_notify().
Similarly, ieee80211_reset_erp_info() only applies to the
current link, and in MLO we assume the driver doesn't really
need that.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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To transmit the association frame to the right station and
with address translation, use the correct addresses there
and set up the AP address in the configuration earlier so
it's applied during the transmit of auth/assoc frames.
Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We need to copy the address to both the private and public
portion of the link_sta (the private one is needed for the
hash table). Fix this.
Fixes: bbe90107e1d9 ("wifi: mac80211: mlme: refactor link station setup")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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At this point, we've already changed link_id to be zero for
a non-MLO connection, so use the 'mlo' variable rather than
link ID to determine the MLO status of the station.
Fixes: bd363ee53302 ("wifi: mac80211: mlme: set sta.mlo correctly")
Fixes: 81151ce462e5 ("wifi: mac80211: support MLO authentication/association with one link")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In my previous changes here, I neglected to take the old
conn_flags into account that might still be present from
the authentication, and thus ieee80211_setup_assoc_link()
can misbehave, as well as the override calculation being
wrong. Fix that by ORing in the old flags.
Fixes: 1845c1d4a455 ("wifi: mac80211: mlme: refactor assoc link setup")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In a few places we need to use the AP (MLD) address, not the
deflink BSSID, the link address translation will happen later.
To make that work properly for fast-xmit, set up the ap_addr
in the vif.cfg earlier.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Due to some changes and rebasing between different patches
this fell through the cracks; we need to set sta.mlo if the
connection is using MLO.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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It might seem a bit pointless to do a multi-link operation
connection with just a single link, but this is already a
big change, so for now, limit MLO connections to a single
link.
Extending that to multiple links will require
* work on parsing the multi-link element with STA profile
properly, including element fragmentation;
* checking the per-link status in the multi-link element
* implementing logic to have active/inactive links to let
drivers decide which links should be active;
* implementing multicast RX deduplication;
* and likely more.
For now this is still useful since it lets us do multi-link
connections for the purposes of testing APIs and the higher
layers such as wpa_supplicant.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When we create a station with a non-default link, then
we should have a link address, and we definitely need
to insert it into the link hash table on insertion.
Split the API into with and without link creation and
if it has a link, insert the link into the link hash
table on sta_info_insert().
Fixes: ba6ddab94fc6 ("wifi: mac80211: maintain link-sta hash table")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In AP/mesh where the stations are added by userspace, we
limit the number of A-MSDU subframes according to the
extended capabilities.
Refactor the code and extend that also to client-side.
Fixes: 506bcfa8abeb ("mac80211: limit the A-MSDU Tx based on peer's capabilities")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Split out much of the code in ieee80211_set_associated()
into a new ieee80211_link_set_associated() which can be
called per link later for MLO.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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If NEED_DTIM_BEFORE_ASSOC isn't set, then we don't need
to enter an RCU critical section and look up the beacon
elements.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Factor out the code to set up the assoc link into a
new function ieee80211_setup_assoc_link().
While at it, also modify the 'override' handling to
just take into account whether or not the conn_flags
were changed, which is what we need to setup again
the channel later.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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There's no need to pass the address, we can look at the auth_data
inside the function rather than outside.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Refactor the per-link setup out of ieee80211_assoc_success()
into a new function ieee80211_assoc_config_link().
It looks useless for now to parse the elements again inside
ieee80211_assoc_config_link(), but that will be done with
the link ID in the future.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Refactor ieee80211_prep_channel() to make the link argument
optional and add a conn_flags pointer argument instead, so
that we can later use this for links that don't exist yet
to build the right information for MLO.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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For MLO, we will need to build these elements per link, so
factor out the code that does this, returning the capability,
to simplify building the multi-link element in the future.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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With MLO, when we'll disconnect from an AP MLD, we'll just
destroy all the links. Therefore, the only thing we (may)
need to reset is the deflink data, so switch back to that
and adjust the comments accordingly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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For MLO we'll need to read flags not directly from the link as
it may not even exist yet if we're just setting up flags for
a secondary link before sending the association request, so
pass the incoming conn_flags separately. Also, while at it,
pass the sdata/link separately as for non-tracking now the
link may be NULL.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We'll need ieee80211_prep_channel() in other code for MLO
later, so move the code up - unchanged for now - to avoid
forward declarations in the future.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Refactor the code here since we need to have it also for each
link station after association in MLO later.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The flag here is currently per interface, but the way we
set and clear it means it should be per link, so change
it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Change ieee80211_check_rate_mask() to use a link rather than
the sdata and deflink/bss_conf.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Clean up the code building the supported channels element
a little bit by using a local variable instead of the long
line.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We need to consider the (maximum) size of the EHT element
we'll add for the association request, otherwise we may run
out of space.
Fixes: 820acc810fb6 ("mac80211: Add EHT capabilities to association/probe request")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The functions currently take a link and check data
from it, but this needs to change for MLO. Simplify
the prototypes by passing only the needed arguments.
Remove the regulatory checks, the warnings shouldn't
trigger, and haven't as far as I know.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Rework the sorting of custom elements into the association
request by moving the elements before HT/VHT/HE to each
their own function. While at it, fix the placement of the
ones that should be between VHT and HE.
This doesn't fix the placement of elements that should be
between HE and EHT yet, a similar change might be needed
in the future.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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There's some awkward code that really only exists
because we want to optimize the allocation size,
but that's not really all that necessary.
Refactor the code that adds rates to the association
request frame to have a separate function, removing
the goto.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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James Prestwood
Jakub Kicinski
Rafael Mendonca
Paolo Abeni
Johannes Berg
Veerendranath Jakkam
Mordechay Goodstein