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Analogically to what we did in 2800aadc18a6 ("iwlwifi: Fix softirq/hardirq
disabling in iwl_pcie_enqueue_hcmd()"), we must apply the same fix to
iwl_pcie_gen2_enqueue_hcmd(), as it's being called from exactly the same
contexts.
Reported-by: Heiner Kallweit <hkallweit1@gmail.com
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/nycvar.YFH.7.76.2104171112390.18270@cbobk.fhfr.pm
Unfortunately, since beacon protection isn't fully available
yet, we didn't notice that there are problems with it and
that the replay detection isn't working correctly. We were
relying only on mac80211, since iwl_mvm_rx_crypto() exits
when !ieee80211_has_protected(), which is of course true for
protected (but not encrypted) management frames.
Fix this to properly detect protected (but not encrypted)
management frames and handle them - we continue to only care
about beacons since for others everything can and will be
checked in mac80211.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: b1fdc2505abc ("iwlwifi: mvm: advertise BIGTK client support if available")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210326125611.23c990843369.I09c262a8f6f9852cc8f513cdcb31a7f8f87dd8af@changeid
Since we now call iwl_notification_wait_notify() from the
NAPI poll in soft-IRQ, we get a (valid) lockdep complaint
that we could get a deadlock by taking the spinlock from
sleeping context and then getting the soft-IRQ that also
tries to take it (in NAPI polling).
Fix this by disabling soft-IRQs for this lock.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: 25edc8f259c7 ("iwlwifi: pcie: properly implement NAPI")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210326125611.c3b2e3d6b58b.Ic56f351d04674df70567bab0269cba91bdbc853c@changeid
As the context info gen3 code is only called for >=AX210 devices
(from iwl_trans_pcie_gen2_start_fw()) the code there to set LTR
on 22000 devices cannot actually do anything (22000 < AX210).
Fix this by moving the LTR code to iwl_trans_pcie_gen2_start_fw()
where it can handle both devices. This then requires that we kick
the firmware only after that rather than doing it from the context
info code.
Note that this again had a dead branch in gen3 code, which I've
removed here.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: ed0022da8bd9 ("iwlwifi: pcie: set LTR on more devices")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210326125611.675486178ed1.Ib61463aba6920645059e366dcdca4c4c77f0ff58@changeid
When version 2 of the regulatory capability flags API was implemented,
the flag to disable 11ax was defined as bit 13, but this was later
changed and the bit remained as bit 10, like in version 1. This was
never changed in the driver, so we were checking for the wrong bit in
newer devices. Fix it.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Fixes: e27c506a985c ("iwlwifi: regulatory: regulatory capabilities api change")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210326125611.6d28516b59cd.Id0248d5e4662695254f49ce37b0268834ed52918@changeid
Second set of fixes for v5.12. Only three iwlwifi fixes this time, the
crash with MVM being the most important one and reported by multiple
people.
iwlwifi
* fix kernel crash regression when using LTO with MVM devices
* fix printk format warnings
* fix potential deadlock found by lockdep
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Merge tag 'wireless-drivers-2021-03-03' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for v5.12
Second set of fixes for v5.12. Only three iwlwifi fixes this time, the
crash with MVM being the most important one and reported by multiple
people.
iwlwifi
* fix kernel crash regression when using LTO with MVM devices
* fix printk format warnings
* fix potential deadlock found by lockdep
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
An unsigned long variable should rely on '%lu' format strings, not '%zd'
Fixes: a1a6a4cf49ece ("iwlwifi: pnvm: implement reading PNVM from UEFI")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210302011640.1276636-1-pierre-louis.bossart@linux.intel.com
First set of fixes for v5.12. One iwlwifi kernel crash fix and smaller
fixes to multiple drivers.
ath9k
* fix Spatial Multiplexing Power Save (SMPS) handling to improve thoughtput
mt76
* error handling fixes
* memory leax fixes
iwlwifi
* don't crash during debug collection on DVM devices
MAINTAINERS
* email address update
ath11k
* fix GCC warning about DMA address debug messages
* fix regression which broke QCA6390 AP mode
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Merge tag 'wireless-drivers-2021-02-26' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for v5.12
First set of fixes for v5.12. One iwlwifi kernel crash fix and smaller
fixes to multiple drivers.
ath9k
* fix Spatial Multiplexing Power Save (SMPS) handling to improve thoughtput
mt76
* error handling fixes
* memory leax fixes
iwlwifi
* don't crash during debug collection on DVM devices
MAINTAINERS
* email address update
ath11k
* fix GCC warning about DMA address debug messages
* fix regression which broke QCA6390 AP mode
* tag 'wireless-drivers-2021-02-26' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers:
mt76: mt7915: fix unused 'mode' variable
mt76: dma: do not report truncated frames to mac80211
mt76: mt7921: remove incorrect error handling
iwlwifi: pcie: fix iwl_so_trans_cfg link error when CONFIG_IWLMVM is disabled
ath11k: fix AP mode for QCA6390
ath11k: qmi: use %pad to format dma_addr_t
MAINTAINERS: update for mwifiex driver maintainers
iwlwifi: avoid crash on unsupported debug collection
mt76: mt7915: only modify tx buffer list after allocating tx token id
mt76: fix tx skb error handling in mt76_dma_tx_queue_skb
ath9k: fix transmitting to stations in dynamic SMPS mode
====================
Link: https://lore.kernel.org/r/20210226164411.CDD03C433CA@smtp.codeaurora.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Randy reported an error on his randconfig builds:
ERROR: modpost: "iwl_so_trans_cfg" [drivers/net/wireless/intel/iwlwifi/iwlwifi.ko] undefined!
The problem was that when CONFIG_IWLMVM was disabled we were still accessing
iwl_so_trans_cfg. Fix it by moving IS_ENABLED() check before the access.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: 930be4e76f26 ("iwlwifi: add support for SnJ with Jf devices")
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Luca Coelho <luciano.coelho@intel.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1614236661-20274-1-git-send-email-kvalo@codeaurora.org
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Merge tag 'pci-v5.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Remove unnecessary locking around _OSC (Bjorn Helgaas)
- Clarify message about _OSC failure (Bjorn Helgaas)
- Remove notification of PCIe bandwidth changes (Bjorn Helgaas)
- Tidy checking of syscall user config accessors (Heiner Kallweit)
Resource management:
- Decline to resize resources if boot config must be preserved (Ard
Biesheuvel)
- Fix pci_register_io_range() memory leak (Geert Uytterhoeven)
Error handling (Keith Busch):
- Clear error status from the correct device
- Retain error recovery status so drivers can use it after reset
- Log the type of Port (Root or Switch Downstream) that we reset
- Always request a reset for Downstream Ports in frozen state
Endpoint framework and NTB (Kishon Vijay Abraham I):
- Make *_get_first_free_bar() take into account 64 bit BAR
- Add helper API to get the 'next' unreserved BAR
- Make *_free_bar() return error codes on failure
- Remove unused pci_epf_match_device()
- Add support to associate secondary EPC with EPF
- Add support in configfs to associate two EPCs with EPF
- Add pci_epc_ops to map MSI IRQ
- Add pci_epf_ops to expose function-specific attrs
- Allow user to create sub-directory of 'EPF Device' directory
- Implement ->msi_map_irq() ops for cadence
- Configure LM_EP_FUNC_CFG based on epc->function_num_map for cadence
- Add EP function driver to provide NTB functionality
- Add support for EPF PCI Non-Transparent Bridge
- Add specification for PCI NTB function device
- Add PCI endpoint NTB function user guide
- Add configfs binding documentation for pci-ntb endpoint function
Broadcom STB PCIe controller driver:
- Add support for BCM4908 and external PERST# signal controller
(Rafał Miłecki)
Cadence PCIe controller driver:
- Retrain Link to work around Gen2 training defect (Nadeem Athani)
- Fix merge botch in cdns_pcie_host_map_dma_ranges() (Krzysztof
Wilczyński)
Freescale Layerscape PCIe controller driver:
- Add LX2160A rev2 EP mode support (Hou Zhiqiang)
- Convert to builtin_platform_driver() (Michael Walle)
MediaTek PCIe controller driver:
- Fix OF node reference leak (Krzysztof Wilczyński)
Microchip PolarFlare PCIe controller driver:
- Add Microchip PolarFire PCIe controller driver (Daire McNamara)
Qualcomm PCIe controller driver:
- Use PHY_REFCLK_USE_PAD only for ipq8064 (Ansuel Smith)
- Add support for ddrss_sf_tbu clock for sm8250 (Dmitry Baryshkov)
Renesas R-Car PCIe controller driver:
- Drop PCIE_RCAR config option (Lad Prabhakar)
- Always allocate MSI addresses in 32bit space (Marek Vasut)
Rockchip PCIe controller driver:
- Add FriendlyARM NanoPi M4B DT binding (Chen-Yu Tsai)
- Make 'ep-gpios' DT property optional (Chen-Yu Tsai)
Synopsys DesignWare PCIe controller driver:
- Work around ECRC configuration hardware defect (Vidya Sagar)
- Drop support for config space in DT 'ranges' (Rob Herring)
- Change size to u64 for EP outbound iATU (Shradha Todi)
- Add upper limit address for outbound iATU (Shradha Todi)
- Make dw_pcie ops optional (Jisheng Zhang)
- Remove unnecessary dw_pcie_ops from al driver (Jisheng Zhang)
Xilinx Versal CPM PCIe controller driver:
- Fix OF node reference leak (Pan Bian)
Miscellaneous:
- Remove tango host controller driver (Arnd Bergmann)
- Remove IRQ handler & data together (altera-msi, brcmstb, dwc)
(Martin Kaiser)
- Fix xgene-msi race in installing chained IRQ handler (Martin
Kaiser)
- Apply CONFIG_PCI_DEBUG to entire drivers/pci hierarchy (Junhao He)
- Fix pci-bridge-emul array overruns (Russell King)
- Remove obsolete uses of WARN_ON(in_interrupt()) (Sebastian Andrzej
Siewior)"
* tag 'pci-v5.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (69 commits)
PCI: qcom: Use PHY_REFCLK_USE_PAD only for ipq8064
PCI: qcom: Add support for ddrss_sf_tbu clock
dt-bindings: PCI: qcom: Document ddrss_sf_tbu clock for sm8250
PCI: al: Remove useless dw_pcie_ops
PCI: dwc: Don't assume the ops in dw_pcie always exist
PCI: dwc: Add upper limit address for outbound iATU
PCI: dwc: Change size to u64 for EP outbound iATU
PCI: dwc: Drop support for config space in 'ranges'
PCI: layerscape: Convert to builtin_platform_driver()
PCI: layerscape: Add LX2160A rev2 EP mode support
dt-bindings: PCI: layerscape: Add LX2160A rev2 compatible strings
PCI: dwc: Work around ECRC configuration issue
PCI/portdrv: Report reset for frozen channel
PCI/AER: Specify the type of Port that was reset
PCI/ERR: Retain status from error notification
PCI/AER: Clear AER status from Root Port when resetting Downstream Port
PCI/ERR: Clear status of the reporting device
dt-bindings: arm: rockchip: Add FriendlyARM NanoPi M4B
PCI: rockchip: Make 'ep-gpios' DT property optional
Documentation: PCI: Add PCI endpoint NTB function user guide
...
If the opmode doesn't support debug collection (DVM) then don't
crash, but just skip the callback.
Fixes: d01293154c0a ("iwlwifi: dbg: add op_mode callback for collecting debug data.")
Reported-by: Andy Lavr <andy.lavr@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210219133506.ecabe285bc7d.I73d230d555c595fa2d9bf284f80078729fe18aa4@changeid
We use this driver as a backport that also runs on older kernels (as
part of the backports project). So we use some checks to backport or
prevent code from compiling in incompatible kernel version.
When I took one of the PNVM patches from the backport, I accidentally
left the comment that a certain part of the code doesn't work in older
kernels. This obviously should never be valid for the mainline.
Remove this comment.
Reported-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20210211223049.40d545a0fa89.I04793aaa5312b926335c8db32131f000432df511@changeid
If the SKU_ID doesn't match, we don't increment the pointer and keep
checking the same TLV over and over again.
We need to increment the pointer in all situtations, namely if the TLV
is not a SKU_ID, if the SKU_ID matched or if the SKU_ID didn't match.
So we can increment the pointer already before checking for these
conditions to solve the problem.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Fixes: 6972592850c0 ("iwlwifi: read and parse PNVM file")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210172142.de94d366f3ff.I9a5a54906cf0f4ec8af981d6066bfd771152ffb9@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When the interface goes up, we have already loaded the PNVM during
init, so we don't load it anymore. But we still need to set the PNVM
values in the context so that the FW can load it again.
Call set_pnvm when the PNVM is already loaded and change the
trans_pcie implementation to accept a second call to set_pnvm when we
have already allocated and, in this case, only set the values without
allocating again.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Fixes: 6972592850c0 ("iwlwifi: read and parse PNVM file")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210172142.622546a3566f.I659a8b9aa944d213c4ba446e142d74f3f6db9c64@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When The driver in D3 and FW crash happens, trans->system_pm_mode
is not reset to IWL_PLAT_PM_MODE_DISABLED which causes the driver
not to send INIT conmmands and D3 resume fails.
This patch contains the fix for resetting trans->system_pm_mode to
IWL_PLAT_PM_MODE_DISABLED and D3 resume is successful.
Signed-off-by: Ravi Darsi <ravi.darsi@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210172142.ad170ad48409.Ifc6b10e8b3f235876af91d0e23e90b462d270eff@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Currently, for all devices and families, failing getting the temp
from the fw is indicated in the log as ERR.
This is too severe for two reasons:
1. The driver has a fall back - and schedules the next temp
read immediately after failing to read temp from the fw.
2. The temp read implementation in the fw is different between
HWs, and on older devices the flow is a-sync and may timeout.
Reducing the print severity from ERR to WARN will allow to
track the issue if it will appear many times, but not frighten users
if it appears once.
Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210172142.dfd423b2b2ef.Icd576dc3e2e7174d3ed9c1c32f48ea0013699e72@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
We don't need the NVM until fairly late in the flow and
since this flow will be split soon, get the NVM later to
unite it with the parts that really need it.
Gather all what needs the NVM into a function.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210171218.bab0e65c4909.I789f3eb577b216ad1688269e036ce9fa4880f532@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The STA_CTXT_HE_NIC_NOT_ACK_ENABLED flag tells the firmware
whether *we* support ack-enabled.
So what should be checked is our *own* capability and not
the *peer's* capability.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210171218.59f44e210096.I8f31968f6f7303255e212d869ca0131becd309aa@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Return value of the iwl_mvm_load_nvm_to_nic func is not analyzed. If load
NVM to nic func fails and NVM is not loaded to fw properly, then fw may
behave badly and lead to some strange issue. This commit will analyze
return value and if load NVM to nic has failed, then the error code is
sent to the previous func, which will trigger WRT log collection.
iwl_fw_dbg_error_collect() func collects dump only if tri type is
FW_DBG_TRIGGER_ALIVE_TIMEOUT. But when Load NVM to nic function fails
trig_type is FW_DBG_TRIGGER_DRIVER. This commit also has code changes to
collect dump when trig_type is FW_DBG_TRIGGER_DRIVER.
Signed-off-by: Abhishek Naik <abhishek.naik@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210171218.32998850192a.Ic58d08cb6944ca55e343ff0032c82cfa7821e588@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Since the firmware support for internal station for auxiliary
activities, there is no need to configure an auxiliary station
as part of SCAN_CFG_CMD. Thus, this configuration was removed
from the corresponding structure.
Align the code accordingly.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210171218.9b8da8408692.I7fe99d73cd67ffc817c2ef6af4c9932ce9fc50b2@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
No need to pass the dbgfs_dir just to assign it to mvm.
Assign to mvm and then call iwl_mvm_dbgfs_register.
This is a preparation towards the addition of a delayed
op_mode_start flow.
This will allow to split the op_mode_start flow.
Registration to debugfs must happen after we register to
mac80211 and the registration to mac80211 will soon be
delayed in certain cases. In order not to have to remember
the debugfs_dir in a separate variable, just set it into
the mvm structure so that it can be usable later.
Declare mvm->debugfs_dir in the iwl_mvm structure even when
IWLWIFI_DEBUGFS isn't enabled to simplify the source code.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210171218.a92ee491863d.I047923aa3598fbf4fb6fce2cdff75a4969fedd76@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
All the actions that were taken after the registration can
be taken before the registration to mac80211.
This will help to defer part of the op_mode_mvm_start
function to a later stage in case the device is not
available.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210171218.c03cc5db67c1.Ia928ca34d25a73d959a345ffbe4f1217c3f17394@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
BIOS provides RFI feature enable/disable state via WiFi DSM ACPI
object. By default the feature should be disabled.
The GUID for this feature is different from the one driver currently
uses, so need to provide a set of new definitions.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210171218.242bfe368981.Iaccce1e2fa3986b174d0b08942aa4fbf8bb94a95@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
RF Interference Mitigation is a new feature targeted to handle the
problem of interference between DDR memory and WiFi. The role of
the driver is to configure FW with the table holding a mapping
between problematic channels/bands and the corresponding frequencies.
This patch adds RFI infrastructure and adds two debugfs hooks:
- send RFI configuration command (currently with a default table) which
will reset feature in the FW
- read the table, used by the FW (which can be a subset of the table
that driver sent).
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210171218.2cea55a09bc7.I634b79795abad499ce442631d6672ffef8fc6d41@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Once sending the REPLY_ERROR group ID is not set and this lead to
get it set to wrong value LONG_GROUP later in default handling
Fix this by checking the REPLY_ERROR and avoid changing the Group ID
Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210142629.82578caaea84.I0ca9cfdd4e656d2e88ee7696dd6baf4267e7cb52@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Some new devices contain an extra bit in the CRF ID register to denote
that they support CDB. Add definitions and macros to be able to
support it and add the "NO_CDB" to all existing entired.
Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210142629.7b40184d9899.I3bb2cf9b9afb0457583f786dc52d4d1b1ad75ffc@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
iwl_acpi_get_wifi_pkg() may return a valid pointer (meaning success),
while `tbl_rev` is invalid (equel to 1).
In this case, we will treat that as an error.
Subsequent "users" of this "error code" may either check for nonzero
(good; pointers are never zero) or negative
(bad; pointers may be "positive") fix that by splitting the if statement.
First check if IS_ERR(wifi_pkg) and then if tbl_rev != 0.
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210142629.1c8c4b58c932.I147373f6fd364606b0282af8d402c722eb917225@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
In case user requested to register an unsupported regions,
remove it from active list and trigger list, this saves operational
driver memory and run time at collecting debug data.
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210142629.a0cc944040e8.I3ae37547452b39f8040428c21ed47bdc67ae8f71@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
