One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
void *entry[];
};
instance = kzalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL);
This issue was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Trivial fix to spelling mistake in debug message.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This is needed to test TWT requester on the client side.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
These macros are never used and are actually wrong, so it's very
confusing. Remove them.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Add the rt status of the last assert or 0 if the dump collection was
not initiated by an assert. Add the number of rx and tx fifos in use.
These fields are added to dump info lst file.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Sometimes, due to SCD bug, we need to start the queue with an
higher SSN. The queue allocation function currently increments
the SSN in the packet itself, but it is pointless, since this
value is overridden later by iwl_mvm_tx_mpdu with the value
from mvmsta->tid_data[tid].seq_number. Updating tid data is
sufficient.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
In reclaim code, we don't need to take the queue lock for
waking the queue. The code section is executed only when
the tx path is stopped, and since the reclaim path is not
executed in parallel to itself, no one can update the queue
pointers, and accessing them is safe without a lock.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
There is no need to lock mvm station for transport reclaim.
Move the locking down, after the reclaim.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Handle RX no data notification, which is used for advertising NDP to
radiotap.
Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
HE capabilities differ between AP and STA.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
It's not the iwlwifi module that depends on mac80211, but iwlmvm and
iwldvm. To reflect this better, make MVM and DVM Kconfig options
depend on MAC80211 instead.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The FW expects to get the ppe value for each NSS-BW pair in the same
format as in the he phy capabilities IE, which means that a value of 0
implies ppe should be used for BPSK (mcs 0). If there are no PPE
thresholds in the IE, or if for some NSS-RU pair there's no threshold
set for it (this could happen because it's a variable-sized field), it
means no PPE should not be used for that pair, so the value sent to FW
should be 7 which corresponds to "none".
Fixes: 514c30696f ("iwlwifi: add support for IEEE802.11ax")
Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Make the coupling of station id and queue id clear. Group code
together. Remove outdated comment. Never use an undefined hw
queue as given from mac80211.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Assigning mvmsta to be NULL when we are about to exit the
function is pointless. Remove it. Move the variable declaration
to the scope it is used.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
In iwl_mvm_tx_skb_non_sta(), in case of managed interface,
the AP station was supposed to be used for multicast frames
instead of the auxiliary station to avoid frames possibly
sent to an absent P2P GO. However, when moving to DQA mode,
this was broken as no valid queue was assigned. This is fixed
by a recent patch that directs all non-offchannel traffic to
ap station earlier in the TX path. However, the broken, and
now dead code, remained. Remove it.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
When building AMSDU for gen2, code uses iwl_tx_cmd. The only
updated field is len, which is in the same location, so it
is not a bug. However, it is a bit confusing and error prone,
so change it.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Old firmware versions don't support this command. Sending it
to any firmware before -41.ucode will crash the firmware.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=201975
Fixes: 66e839030f ("iwlwifi: fix wrong WGDS_WIFI_DATA_SIZE")
CC: <stable@vger.kernel.org> #4.19+
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We used to have many versions of statistics notification
coming from the firmware. In one of the cleanup patches,
we forgot to clean the code that checks if data->general
is set. Since it is always set, remove the check.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
command len is set too early in the code, since when building
AMSDU, the size changes. This causes the byte count table to
have the wrong size.
Fixes: a0ec0169b7 ("iwlwifi: support new tx api")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
UL_DL is irrelevant to HE TRIG_BASED PPDU.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
We may have the L-SIG length depending on the phy_data info type;
add it to radiotap when we do.
Move getting the phy_data out one layer up and the info type into
it so we can use this data more generically. We need to call the
iwl_mvm_rx_he() function for other reasons as well, so can't just
combine all of that into something like iwl_mvm_parse_phy_data().
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The firmware changed the PHY data API, so follow suit.
Some data is now available even for HT/VHT frames, so
the info type in the metadata was changed. This change
isn't backwards compatible, but
1) the firmware with the old API was never released;
2) the only overlap in the info type field is from the
old type of TB to the new of HT, so this basically
just means that with older FW and newer driver the
data will be considered missing.
While at it, remove the extra code to set the LTF syms
corresponding to the streams and use the data from the
device instead - we don't really need this in any case
other than when we have it from the device.
As the new API gives use the spatial reuse 1-4 fields
for trigger-based PPDUs, also expose that to radiotap.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When removing the driver, the following flow can happen:
1. host command is in progress, for example at index 68.
2. RX interrupt is received with the response.
3. Before it is processed, the remove flow kicks in, and
calls iwl_pcie_txq_unmap. The function cleans all DMA,
and promotes the read pointer to 69.
4. RX thread proceeds with the processing, and is calling
iwl_pcie_cmdq_reclaim, which will print this error:
iwl_pcie_cmdq_reclaim: Read index for DMA queue txq id (0),
index 4 is out of range [0-256] 69 69.
Detect this situation, and avoid the print. Change it to
warning while at it, to make such issues more noticeable
in the future.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When traffic load is not low or low latency is active, TCM schedules
re-evaluation work so in case traffic stops TCM will detect that
traffic load has become low or that low latency is no longer active.
However, if TCM is paused when the re-evaluation work runs, it does
not re-evaluate and the re-evaluation work is no longer scheduled.
As a result, TCM will not indicate that low latency is no longer
active or that traffic load is low when traffic stops.
Fix this by forcing TCM re-evaluation when TCM is resumed in case
low latency is active or traffic load is not low.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Now that nvm_calib_ver is not checked in opmodes other than dvm, we
can remove it from all irrelevant configurations.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This function is only half-used by mvm (i.e. only the nvm_version part
matters, since the calibration version is irrelevant), so it's
pointless to export it from iwlwifi. If mvm uses this function, it
has the additional complexity of setting the calib version to a bogus
value on all cfg structs.
To avoid this, move the function to dvm and make a simple comparison
of the nvm_version in mvm instead.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
These macros are useless because each one of them is used only once
and the element they are assigned to is already pretty clear about
what they mean, "nvm_hw_section_num".
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Using OTP_LOW_IMAGE_SIZE_FAMILY_8000/9000/22000 only obfuscates the
actual values, since these 3 are the same. Redefine the values per
size so it's easier to understand and compare the different
configurations.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Call the previously introduced apply points entry
point when reaching an apply point.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When ini TLVs are loaded, dump data according to the
stored configuration.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The ht_params, nvm_ver, nvm_calib_ver and max_ht_ampdu_exponent
elements in 9000 devices are always the same. Move them to the common
macro.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
First set of patches for 4.21. Most notable here is support for
Quantenna's QSR1000/QSR2000 chipsets and more flexible ways to provide
nvram files for brcmfmac.
Major changes:
brcmfmac
* add support for first trying to get a board specific nvram file
* add support for getting nvram contents from EFI variables
qtnfmac
* use single PCIe driver for all platforms and rename
Kconfig option CONFIG_QTNFMAC_PEARL_PCIE to CONFIG_QTNFMAC_PCIE
* add support for QSR1000/QSR2000 (Topaz) family of chipsets
ath10k
* add support for WCN3990 firmware crash recovery
* add firmware memory dump support for QCA4019
wil6210
* add firmware error recovery while in AP mode
ath9k
* remove experimental notice from dynack feature
iwlwifi
* PCI IDs for some new 9000-series cards
* improve antenna usage on connection problems
* new firmware debugging infrastructure
* some more work on 802.11ax
* improve support for multiple RF modules with 22000 devices
cordic
* move cordic macros and defines to a public header file
* convert brcmsmac and b43 to fully use cordic library
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Merge tag 'wireless-drivers-next-for-davem-2018-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for 4.21
First set of patches for 4.21. Most notable here is support for
Quantenna's QSR1000/QSR2000 chipsets and more flexible ways to provide
nvram files for brcmfmac.
Major changes:
brcmfmac
* add support for first trying to get a board specific nvram file
* add support for getting nvram contents from EFI variables
qtnfmac
* use single PCIe driver for all platforms and rename
Kconfig option CONFIG_QTNFMAC_PEARL_PCIE to CONFIG_QTNFMAC_PCIE
* add support for QSR1000/QSR2000 (Topaz) family of chipsets
ath10k
* add support for WCN3990 firmware crash recovery
* add firmware memory dump support for QCA4019
wil6210
* add firmware error recovery while in AP mode
ath9k
* remove experimental notice from dynack feature
iwlwifi
* PCI IDs for some new 9000-series cards
* improve antenna usage on connection problems
* new firmware debugging infrastructure
* some more work on 802.11ax
* improve support for multiple RF modules with 22000 devices
cordic
* move cordic macros and defines to a public header file
* convert brcmsmac and b43 to fully use cordic library
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
In AP mode, if AP supports HE (and the STA), send the
STA_HE_CTXT command.
This is needed mainly for PPE (packet extension) params.
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
In AP mode, if AP supports 11ax, add the MAC_FILTER_IN_11AX
flag in MAC_CTXT command (needed for various 11ax stuff).
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
A new field was added. Since the code isn't operational (yet) no
need to worry about backward compatibility.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
FW debug data will oneshot read all data available in DRAM
and fill the supplied user buffer. In case the read request
is greater than the new data in DRAM, the driver will write
all data it has and return the buffer immediately.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Lior Cohen <lior2.cohen@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Add a function to be called when apply point occurs.
For each of the TLVs, the function will perform the
apply point logic:
- For HCMD - send the stored host command
- For buffer allocation - allocate the memory and send the
buffer allocation command
- For trigger and region - update the stored configuration
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When ini is loaded, disable all legacy trigger
configuration.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Support loading and storing ini TLVs from external
file. Those TLVs are appended to the default TLVs,
so store them separately.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The new debug ini TLVs can be either packed into firmware
binary or written in external file. Support loading them
from both. Store the data per apply point. Apply point is
a point during driver runtime, where the TLV becomes active.
For example, a trigger of hardware error may be configured
to collect a subset of data pre-alive, as a opposed to HW
error that occurs after alive.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Add the FW API of the new debug infrastructure. Next patches
will introduce the utilization of this infra.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
We need to check the TWT support of the peer and to
propagte the capability to the firmware.
The current implementation will enable TWT only if the TWT
support is advertised in the HE CAP IE and in the Extended
Capability IE.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
FW dump was missing in case the RT FW ucode
section failed to load. This failure happens when
the RT section of the FW file is corrupted.
Signed-off-by: Lior Cohen <lior2.cohen@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
We have to choose different configuration and different firmwares
depending on the external RF module that is installed. Since the
external module is not represented in the PCI IDs, we need to change
the configuration at runtime, after checking the RF ID of the module
installed. We have a bit of a mess in the code that does this,
because it applies cfg's according to the RF ID only, ignoring the
integrated module that is in use.
Fix that for some devices by adding correct configurations for them
and not ignoring the integrated module's type when making the
decision.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The firmware stopped looking at this field long ago.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Split the dump of RXF and TXF. This is in order to
enable code reuse for INI, which may decide to dump
only RXF and not TXF, and vice versa.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Currently opmode is limited to asking transport to either
dump all the dumps configured at startup, or monitor only.
Instead, pass to transport a bitmask, to allow flexibility.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
We can't use SAR Geo if basic SAR is not enabled, since the SAR Geo
tables define offsets in relation to the basic SAR table in use.
To fix this, make iwl_mvm_sar_init() return one in case WRDS is not
available, so we can skip reading WGDS entirely.
Fixes: a6bff3cb19 ("iwlwifi: mvm: add GEO_TX_POWER_LIMIT cmd for geographic tx power table")
Cc: stable@vger.kernel.org # 4.12+
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
