This makes it easier to conditionally replace full allocation of
auth_data to use reallocation for the case of continuing SAE
authentication. Furthermore, there was not really any point in having
this check done so late in the function after having already completed
number of steps that cannot be used anyway in the error case.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Authentication exchange can be completed in both TX and RX paths for
SAE, so move this common functionality into a helper function to avoid
having to implement practically the same operations in two places when
extending SAE implementation in the following commits.
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When there are few packets (e.g. for sampling attempts), the exponentially
weighted variance is usually vastly overestimated, making the resulting data
essentially useless. As far as I know, there has not been any practical use
for this, so let's not waste any cycles on it.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
These rates are highly unlikely to be used quickly, even if the link
deteriorates rapidly. This improves throughput in cases where CCK rates
are not reliable enough to be skipped entirely during sampling.
Sampling these rates regularly can cost a lot of airtime.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Long/short preamble selection cannot be sampled separately, since it
depends on the BSS state. Because of that, sampling attempts to
currently not used preamble modes are not counted in the statistics,
which leads to CCK rates being sampled too often.
Fix statistics accounting for long/short preamble by increasing the
index where necessary.
Fix excessive CCK rate sampling by dropping unsupported sample attempts.
This improves throughput on 2.4 GHz channels
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes a harmless underflow issue when CCK rates are actively being used
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
mi->supported[MINSTREL_CCK_GROUP] needs to be updated
short preamble rates need to be marked as supported regardless of
whether it's currently enabled. Its state can change at any time without
a rate_update call.
Fixes: 782dda00ab ("mac80211: minstrel_ht: move short preamble check out of get_rate")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
By storing a shift value for all duration values of a group, we can
reduce precision by a neglegible amount to make it fit into a u16 value.
This improves cache footprint and reduces size:
Before:
text data bss dec hex filename
10024 116 0 10140 279c rc80211_minstrel_ht.o
After:
text data bss dec hex filename
9368 116 0 9484 250c rc80211_minstrel_ht.o
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Legacy-only devices are not very common and the overhead of the extra
code for HT and VHT rates is not big enough to justify all those extra
lines of code to make it optional.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
debugfs entries are cleaned up by debugfs_remove_recursive already.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If peer support reception of STBC and LDPC, enable them for better
performance.
Signed-off-by: Chaitanya TK <chaitanya.mgit@gmail.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
I'm not really sure exactly _why_ I've been carrying a note
for what's probably _years_ to check that we don't do this,
but we clearly do reflect frames back to the station itself
if it sends such.
One way or the other, it's useless since the station doesn't
really need the AP to talk to itself, so suppress it.
While at it, clarify some of the logic by removing skb->data
references in favour of the destination address (pointer) we
already have separately.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Instead of open-coding a lot of calls to is_valid_ie_attr(),
add this validation directly to the policy, now that we can.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Many range checks can be done in the policy, move them
there. A few in mesh are added in the code (taken out of
the macros) because they don't fit into the s16 range in
the policy validation.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Using skcipher just makes the code longer, and mac80211
also "open-codes" the WEP encrypt/decrypt.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The work-queue was used for deferred destruction of hwsim radios;
this does not work well with namespaces about to exit. The one
remaining user has been migrated, so drop the now unused work-queue
instance.
Signed-off-by: Martin Willi <martin@strongswan.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Merge net-next, which pulled in net, so I can merge a few more
patches that would otherwise conflict.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fix 5 warnings and 14 checks issued by checkpatch.pl:
CHECK: Logical continuations should be on the previous line
+ if ((q->vars.qdelay < q->params.target / 2)
+ && (q->vars.prob < MAX_PROB / 5))
WARNING: line over 80 characters
+ q->params.tupdate = usecs_to_jiffies(nla_get_u32(tb[TCA_PIE_TUPDATE]));
CHECK: Blank lines aren't necessary after an open brace '{'
+{
+
CHECK: braces {} should be used on all arms of this statement
+ if (qlen < QUEUE_THRESHOLD)
[...]
+ else {
[...]
CHECK: Unbalanced braces around else statement
+ else {
CHECK: No space is necessary after a cast
+ if (delta > (s32) (MAX_PROB / (100 / 2)) &&
CHECK: Unnecessary parentheses around 'qdelay == 0'
+ if ((qdelay == 0) && (qdelay_old == 0) && update_prob)
CHECK: Unnecessary parentheses around 'qdelay_old == 0'
+ if ((qdelay == 0) && (qdelay_old == 0) && update_prob)
CHECK: Unnecessary parentheses around 'q->vars.prob == 0'
+ if ((q->vars.qdelay < q->params.target / 2) &&
+ (q->vars.qdelay_old < q->params.target / 2) &&
+ (q->vars.prob == 0) &&
+ (q->vars.avg_dq_rate > 0))
CHECK: Unnecessary parentheses around 'q->vars.avg_dq_rate > 0'
+ if ((q->vars.qdelay < q->params.target / 2) &&
+ (q->vars.qdelay_old < q->params.target / 2) &&
+ (q->vars.prob == 0) &&
+ (q->vars.avg_dq_rate > 0))
CHECK: Blank lines aren't necessary before a close brace '}'
+
+}
CHECK: Comparison to NULL could be written "!opts"
+ if (opts == NULL)
CHECK: No space is necessary after a cast
+ ((u32) PSCHED_TICKS2NS(q->params.target)) /
WARNING: line over 80 characters
+ nla_put_u32(skb, TCA_PIE_TUPDATE, jiffies_to_usecs(q->params.tupdate)) ||
CHECK: Blank lines aren't necessary before a close brace '}'
+
+}
CHECK: No space is necessary after a cast
+ .delay = ((u32) PSCHED_TICKS2NS(q->vars.qdelay)) /
WARNING: Missing a blank line after declarations
+ struct sk_buff *skb;
+ skb = qdisc_dequeue_head(sch);
WARNING: Missing a blank line after declarations
+ struct pie_sched_data *q = qdisc_priv(sch);
+ qdisc_reset_queue(sch);
WARNING: Missing a blank line after declarations
+ struct pie_sched_data *q = qdisc_priv(sch);
+ q->params.tupdate = 0;
Signed-off-by: Leslie Monis <lesliemonis@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no need to compare *val.vu32* with < 0 because
such variable is of type u32 (32 bits, unsigned), making it
impossible to hold a negative value. Fix this by removing
such comparison.
Also, initialize variable *max_val* to -1, just in case
it is not initialized to either BNXT_MSIX_VEC_MAX or
BNXT_MSIX_VEC_MIN_MAX before using it in a comparison
with val.vu32 at line 159:
if (val.vu32 > max_val)
Addresses-Coverity-ID: 1473915 ("Unsigned compared against 0")
Addresses-Coverity-ID: 1473920 ("Uninitialized scalar variable")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Second set of patches for 4.20. Heavy refactoring on mt76 continues
and the usual drivers in active development (iwlwifi, qtnfmac, ath10k)
getting new features. And as always, fixes and cleanup all over.
Major changes:
mt76
* more major refactoring to make it easier add new hardware support
* more work on mt76x0e support
* support for getting firmware version via ethtool
* add mt7650 PCI ID
iwlwifi
* HE radiotap cleanup and improvements
* reorder channel optimization for scans
* bump the FW API version
qtnfmac
* fixes for 'iw' output: rates for enabled SGI, 'dump station'
* expose more scan features to host: scan flush and dwell time
* inform cfg80211 when OBSS is not supported by firmware
wlcore
* add support for optional wakeirq
ath10k
* retrieve MAC address from system firmware if provided
* support extended board data download for dual-band QCA9984
* extended per sta tx statistics support via debugfs
* average ack rssi support for data frames
* speed up QCA6174 and QCA9377 firmware download using diag Copy
Engine
* HTT High Latency mode support needed by SDIO and USB support
* get STA power save state via debugfs
ath9k
* add reset functionality for airtime station debugfs file
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Merge tag 'wireless-drivers-next-for-davem-2018-10-07' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for 4.20
Second set of patches for 4.20. Heavy refactoring on mt76 continues
and the usual drivers in active development (iwlwifi, qtnfmac, ath10k)
getting new features. And as always, fixes and cleanup all over.
Major changes:
mt76
* more major refactoring to make it easier add new hardware support
* more work on mt76x0e support
* support for getting firmware version via ethtool
* add mt7650 PCI ID
iwlwifi
* HE radiotap cleanup and improvements
* reorder channel optimization for scans
* bump the FW API version
qtnfmac
* fixes for 'iw' output: rates for enabled SGI, 'dump station'
* expose more scan features to host: scan flush and dwell time
* inform cfg80211 when OBSS is not supported by firmware
wlcore
* add support for optional wakeirq
ath10k
* retrieve MAC address from system firmware if provided
* support extended board data download for dual-band QCA9984
* extended per sta tx statistics support via debugfs
* average ack rssi support for data frames
* speed up QCA6174 and QCA9377 firmware download using diag Copy
Engine
* HTT High Latency mode support needed by SDIO and USB support
* get STA power save state via debugfs
ath9k
* add reset functionality for airtime station debugfs file
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
* unify code between mt76x0, mt76x2
* mt76x0 fixes
* another fix for rx buffer allocation regression on usb
* move mt76x2 source files to mt76x2 folder
* more work on mt76x0e support
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Merge tag 'mt76-for-kvalo-2018-10-05' of https://github.com/nbd168/wireless
mt76 patches for 4.20
* unify code between mt76x0, mt76x2
* mt76x0 fixes
* another fix for rx buffer allocation regression on usb
* move mt76x2 source files to mt76x2 folder
* more work on mt76x0e support
* Fix for a race condition that caused the FW to crash;
* HE radiotap cleanup and improvements;
* Reorder channel optimization for scans;
* Bumped the FW API version supported after the last API change for
this release;
* Debugging improvements;
* A few bug fixes;
* Some cleanups in preparation for a new implementation;
* Other small improvements, cleanups and fixes.
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Merge tag 'iwlwifi-next-for-kalle-2018-10-06' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
Third set of iwlwifi patches for 4.20
* Fix for a race condition that caused the FW to crash;
* HE radiotap cleanup and improvements;
* Reorder channel optimization for scans;
* Bumped the FW API version supported after the last API change for
this release;
* Debugging improvements;
* A few bug fixes;
* Some cleanups in preparation for a new implementation;
* Other small improvements, cleanups and fixes.
Dave writes:
"Networking fixes:
1) Fix truncation of 32-bit right shift in bpf, from Jann Horn.
2) Fix memory leak in wireless wext compat, from Stefan Seyfried.
3) Use after free in cfg80211's reg_process_hint(), from Yu Zhao.
4) Need to cancel pending work when unbinding in smsc75xx otherwise
we oops, also from Yu Zhao.
5) Don't allow enslaving a team device to itself, from Ido Schimmel.
6) Fix backwards compat with older userspace for rtnetlink FDB dumps.
From Mauricio Faria.
7) Add validation of tc policy netlink attributes, from David Ahern.
8) Fix RCU locking in rawv6_send_hdrinc(), from Wei Wang."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits)
net: mvpp2: Extract the correct ethtype from the skb for tx csum offload
ipv6: take rcu lock in rawv6_send_hdrinc()
net: sched: Add policy validation for tc attributes
rtnetlink: fix rtnl_fdb_dump() for ndmsg header
yam: fix a missing-check bug
net: bpfilter: Fix type cast and pointer warnings
net: cxgb3_main: fix a missing-check bug
bpf: 32-bit RSH verification must truncate input before the ALU op
net: phy: phylink: fix SFP interface autodetection
be2net: don't flip hw_features when VXLANs are added/deleted
net/packet: fix packet drop as of virtio gso
net: dsa: b53: Keep CPU port as tagged in all VLANs
openvswitch: load NAT helper
bnxt_en: get the reduced max_irqs by the ones used by RDMA
bnxt_en: free hwrm resources, if driver probe fails.
bnxt_en: Fix enables field in HWRM_QUEUE_COS2BW_CFG request
bnxt_en: Fix VNIC reservations on the PF.
team: Forbid enslaving team device to itself
net/usb: cancel pending work when unbinding smsc75xx
mlxsw: spectrum: Delete RIF when VLAN device is removed
...
As preparation for new trigger type, make iwl_fw_dbg_collect_desc
agnostic to the trigger structure.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
iwl_fw_dbg_collect can be called by any function that already
has the error string ready. iwl_fw_dbg_collect_trig, on the
other hand, does string formatting. The occurrences decrement
is at iwl_fw_dbg_collect_trig, instead of iwl_fw_dbg_collect,
which causes it to sometimes be skipped. Move it to the right
location.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
match_string() returns the index of an array for a matching string,
which can be used intead of open coded variant.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
As preparation for new trigger format, make the function
agnostic to the trigger fomat. Instead it gets the relevant
parameters - id and delay.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
For trigger-based PPDUs, most values aren't part of the HE-SIG-A
because they're preconfigured by the trigger frame. However, we
still have this information since we used the trigger frame to
configure the hardware, so we can (and do) read it back out and
can thus show it in radiotap.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
When the info type is MU, we still have the data from the TSF
overload words, so should decode that. When it's MU_EXT_INFO
we additionally have the SIG-B common 0/1/2 fields.
Also document the validity depending on the info type and fix
the name of the regular TB PPDU info type accordingly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Add debugfs to send host command in mvm and fmac op modes.
Allows to send host command at runtime via send_hcmd debugfs file.
The command is received as a string that represents hex values.
The struct of the command is as follows:
[cmd_id][flags][length][data]
cmd_id and flags are 8 chars long each.
length is 4 chars long.
data is length * 2 chars long.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Add send host command op to firmware runtime op struct to allow sending
host commands to the op mode from the fw runtime context.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Change MCC update response API to be compatible with new FW API.
While at it change v2 which is not in use anymore to v3 and cleanup
mcc_update v1 command and response which is obsolete.
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
If we use the iwl_pcie_txq_build_tfd() return value for BIT(),
we should validate that it's not going to be negative, so do
the check and bail out if we hit an error. We shouldn't, as
we check if it'll fit beforehand, but better be safe.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The fall-through to the MVM case is intended as we have to do
*something* to continue, and can't easily clean up. So we'll
just fail in mvm later, if this does happen.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
If we use the iwl_pcie_gen2_set_tb() return value for BIT(),
we should validate that it's not going to be negative, so do
the check and bail out if we hit an error. We shouldn't, as
we check if it'll fit beforehand, but better be safe.
Fixes: ab6c644539 ("iwlwifi: pcie: copy TX functions to new transport")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
With NICs that don't read the NVM directly and instead rely on getting
the relevant data from the firmware, the number of reserved MAC
addresses was not added to the API. This caused the driver to assume
there is only one address which results in all interfaces getting the
same address. Update the API to fix this.
While at it, fix-up the comments with firmware api names to actually
match what we have in the firmware.
Fixes: e9e1ba3dbf ("iwlwifi: mvm: support getting nvm data from firmware")
Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Trigger dump collection if the alive flow fails, regardless of the
reason.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
If all free RB queues are empty, the driver will never restock the
free RB queue. That's because the restocking happens in the Rx flow,
and if the free queue is empty there will be no Rx.
Although there's a background worker (a.k.a. allocator) allocating
memory for RBs so that the Rx handler can restock them, the worker may
run only after the free queue has become empty (and then it is too
late for restocking as explained above).
There is a solution for that called 'emergency': If the number of used
RB's reaches half the amount of all RB's, the Rx handler will not wait
for the allocator but immediately allocate memory for the used RB's
and restock the free queue.
But, since the used RB's is per queue, it may happen that the used
RB's are spread between the queues such that the emergency check will
fail for each of the queues
(and still run out of RBs, causing the above symptom).
To fix it, move to emergency mode if the sum of *all* used RBs (for
all Rx queues) reaches half the amount of all RB's
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
In mac80211, the default remains for HT, so set the limit to
HE for our driver.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
For SU/SU-ER/MU PPDUs we have spatial reuse.
For those where it's relevant we also know the pre-FEC
padding factor, PE disambiguity bit, beam change bit
and doppler bit.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Add information about the LDCP extra symbol segment to the HE
data when applicable (not for trigger-based PPDUs).
While at it, clean up the code for UL/DL a bit.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This code gets shorter if it doesn't have to check all the
conditions, so move it to an appropriate place that has all
of them validated already.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Split the code out into a separate routine, and move that to be
called inside the previously introduced iwl_mvm_decode_he_phy_data()
function.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Pull some of the decoding of he_phy_data into a separate function so
we don't need to check over and over again if it's valid.
While at it, fix the UL/DL bit reporting to be for all but trigger-
based frames.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
As detected by Luca during code review when I move this in the
next patch, the code here is putting the data into the wrong
field (flags1 instead of flags2). Fix that.
Fixes: e5721e3f77 ("iwlwifi: mvm: add radiotap data for HE")
Reported-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Remove a stray empty line, unbreak some lines that aren't
really that long, and move on variable setting into the
initializer to avoid initializing it twice.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
