| Age | Commit message (Collapse) | Author |
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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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>
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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>
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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>
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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
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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.
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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
...
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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Bump the firmware API version to 41.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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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>
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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>
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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>
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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: ab6c644539e9 ("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>
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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: e9e1ba3dbf00 ("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>
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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>
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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>
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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>
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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>
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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>
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We have this data available, so add it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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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>
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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>
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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>
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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: e5721e3f770f ("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>
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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>
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This is equivalent to checking he_phy_data != HE_PHY_DATA_INVAL,
which is already done in a number of places, so remove the extra
'overload' variable entirely.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Fix a bug that happens in the following scenario:
1) suspend without WoWLAN
2) mac80211 calls drv_stop because of the suspend
3) __iwl_mvm_mac_stop deallocates the aux station
4) during drv_stop the firmware crashes
5) iwlmvm:
* sets IWL_MVM_STATUS_HW_RESTART_REQUESTED
* asks mac80211 to kick the restart flow
6) mac80211 puts the restart worker into a freezable
queue which means that the worker will not run for now
since the workqueue is already frozen
7) ...
8) resume
9) mac80211 runs ieee80211_reconfig as part of the resume
10) mac80211 detects that a restart flow has been requested
and that we are now resuming from suspend and cancels
the restart worker
11) mac80211 calls drv_start()
12) __iwl_mvm_mac_start checks that IWL_MVM_STATUS_HW_RESTART_REQUESTED
clears it, sets IWL_MVM_STATUS_IN_HW_RESTART and calls
iwl_mvm_restart_cleanup()
13) iwl_fw_error_dump gets called and accesses the device
to get debug data
14) iwl_mvm_up adds the aux station
15) iwl_mvm_add_aux_sta() allocates an internal station for
the aux station
16) iwl_mvm_allocate_int_sta() tests IWL_MVM_STATUS_IN_HW_RESTART
and doesn't really allocate a station ID for the aux
station
17) a new queue is added for the aux station
Note that steps from 5 to 9 aren't really part of the
problem but were described for the sake of completeness.
Once the iwl_mvm_mac_stop() is called, the device is not
accessible, meaning that step 12) can't succeed and we'll
see the following:
drivers/net/wireless/intel/iwlwifi/pcie/trans.c:2122 iwl_trans_pcie_grab_nic_access+0xc0/0x1d6 [iwlwifi]()
Timeout waiting for hardware access (CSR_GP_CNTRL 0x080403d8)
Call Trace:
[<ffffffffc03e6ad3>] iwl_trans_pcie_grab_nic_access+0xc0/0x1d6 [iwlwifi]
[<ffffffffc03e6a13>] iwl_trans_pcie_dump_regs+0x3fd/0x3fd [iwlwifi]
[<ffffffffc03dad42>] iwl_fw_error_dump+0x4f5/0xe8b [iwlwifi]
[<ffffffffc04bd43e>] __iwl_mvm_mac_start+0x5a/0x21a [iwlmvm]
[<ffffffffc04bd6d2>] iwl_mvm_mac_start+0xd4/0x103 [iwlmvm]
[<ffffffffc042d378>] drv_start+0xa1/0xc5 [iwl7000_mac80211]
[<ffffffffc045a339>] ieee80211_reconfig+0x145/0xf50 [mac80211]
[<ffffffffc044788b>] ieee80211_resume+0x62/0x66 [mac80211]
[<ffffffffc0366c5b>] wiphy_resume+0xa9/0xc6 [cfg80211]
The station id of the aux station is set to 0xff in step 3
and because we don't really allocate a new station id for
the auxliary station (as explained in 16), we end up sending
a command to the firmware asking to connect the queue
to station id 0xff. This makes the firmware crash with the
following information:
0x00002093 | ADVANCED_SYSASSERT
0x000002F0 | trm_hw_status0
0x00000000 | trm_hw_status1
0x00000B38 | branchlink2
0x0001978C | interruptlink1
0x00000000 | interruptlink2
0xFF080501 | data1
0xDEADBEEF | data2
0xDEADBEEF | data3
Firmware error during reconfiguration - reprobe!
FW error in SYNC CMD SCD_QUEUE_CFG
Fix this by clearing IWL_MVM_STATUS_HW_RESTART_REQUESTED
in iwl_mvm_mac_stop(). We won't be able to collect debug
data anyway and when we will brought up again, we will
have a clean state from the firmware perspective.
Since we won't have IWL_MVM_STATUS_IN_HW_RESTART set in
step 12) we won't get to the 2093 ASSERT either.
Fixes: bf8b286f86fc ("iwlwifi: mvm: defer setting IWL_MVM_STATUS_IN_HW_RESTART")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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The triplet of get trigger, is trigger enabled and is trigger stopped
repeats itself. Group them in a function to avoid code duplication.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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The code that dumps various memory types repeats itself. Move it to a
function to avoid duplication.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Allow the FW to reorder HB channels and first scan HB channels with
assumed APs, in order to reduce the scan duration.
Currently enable it for all scan requests types.
Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Split iwl_fw_error_dump to two parts. The first part will dump the
actual data, and second will do the file allocations, trans calls and
actual file operations. This is done in order to enable reuse of the
code for the new debug ini infrastructure.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Add a macro to replace all the conditions checking for valid dump
length. In addition, move the fifo len calculation to a helper
function.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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