openwrt/staging/blogic.git
6 years agoiwlwifi: mvm Support new MCC update response
Haim Dreyfuss [Mon, 4 Jun 2018 10:20:00 +0000 (13:20 +0300)]
iwlwifi: mvm Support new MCC update response

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mcc_update v1 command and response which is obsolete.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>
6 years agoiwlwifi: pcie: check iwl_pcie_txq_build_tfd() return value
Johannes Berg [Mon, 18 Jun 2018 07:53:36 +0000 (09:53 +0200)]
iwlwifi: pcie: check iwl_pcie_txq_build_tfd() return value

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>
6 years agoiwlwifi: add fall through comment
Johannes Berg [Mon, 18 Jun 2018 08:22:03 +0000 (10:22 +0200)]
iwlwifi: add fall through comment

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>
6 years agoiwlwifi: pcie gen2: check iwl_pcie_gen2_set_tb() return value
Johannes Berg [Mon, 18 Jun 2018 07:53:36 +0000 (09:53 +0200)]
iwlwifi: pcie gen2: check iwl_pcie_gen2_set_tb() return value

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>
6 years agoiwlwifi: nvm: get num of hw addresses from firmware
Naftali Goldstein [Tue, 12 Jun 2018 06:08:40 +0000 (09:08 +0300)]
iwlwifi: nvm: get num of hw addresses from firmware

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>
6 years agoiwlwifi: add dump collection in case alive flow fails
Shahar S Matityahu [Sun, 27 May 2018 14:17:07 +0000 (17:17 +0300)]
iwlwifi: add dump collection in case alive flow fails

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>
6 years agoiwlwifi: pcie: avoid empty free RB queue
Shaul Triebitz [Wed, 6 Jun 2018 14:20:58 +0000 (17:20 +0300)]
iwlwifi: pcie: avoid empty free RB queue

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>
6 years agoiwlwifi: mvm: set max TX/RX A-MPDU subframes to HE limit
Johannes Berg [Fri, 15 Jun 2018 12:21:53 +0000 (14:21 +0200)]
iwlwifi: mvm: set max TX/RX A-MPDU subframes to HE limit

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>
6 years agoiwlwifi: mvm: add more information to HE radiotap
Johannes Berg [Thu, 14 Jun 2018 14:30:52 +0000 (16:30 +0200)]
iwlwifi: mvm: add more information to HE radiotap

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>
6 years agoiwlwifi: mvm: add LDPC-XSYM to HE radiotap data
Johannes Berg [Thu, 14 Jun 2018 12:58:24 +0000 (14:58 +0200)]
iwlwifi: mvm: add LDPC-XSYM to HE radiotap data

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>
6 years agoiwlwifi: mvm: add TXOP to HE radiotap data
Johannes Berg [Thu, 14 Jun 2018 12:54:38 +0000 (14:54 +0200)]
iwlwifi: mvm: add TXOP to HE radiotap data

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>
6 years agoiwlwifi: mvm: move HE-MU LTF_NUM parsing to he_phy_data parsing
Johannes Berg [Thu, 14 Jun 2018 12:52:19 +0000 (14:52 +0200)]
iwlwifi: mvm: move HE-MU LTF_NUM parsing to he_phy_data parsing

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>
6 years agoiwlwifi: mvm: clean up HE radiotap RU allocation parsing
Johannes Berg [Thu, 14 Jun 2018 12:48:27 +0000 (14:48 +0200)]
iwlwifi: mvm: clean up HE radiotap RU allocation parsing

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>
6 years agoiwlwifi: mvm: pull some he_phy_data decoding into a separate function
Johannes Berg [Thu, 14 Jun 2018 12:36:22 +0000 (14:36 +0200)]
iwlwifi: mvm: pull some he_phy_data decoding into a separate function

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>
6 years agoiwlwifi: mvm: put HE SIG-B symbols/users data correctly
Johannes Berg [Fri, 15 Jun 2018 07:43:43 +0000 (09:43 +0200)]
iwlwifi: mvm: put HE SIG-B symbols/users data correctly

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>
6 years agoiwlwifi: mvm: minor cleanups to HE radiotap code
Johannes Berg [Thu, 14 Jun 2018 12:17:42 +0000 (14:17 +0200)]
iwlwifi: mvm: minor cleanups to HE radiotap code

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>
6 years agoiwlwifi: mvm: remove unnecessary overload variable
Johannes Berg [Thu, 14 Jun 2018 12:07:49 +0000 (14:07 +0200)]
iwlwifi: mvm: remove unnecessary overload variable

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>
6 years agoiwlwifi: mvm: clear HW_RESTART_REQUESTED when stopping the interface
Emmanuel Grumbach [Wed, 13 Jun 2018 08:49:20 +0000 (11:49 +0300)]
iwlwifi: mvm: clear HW_RESTART_REQUESTED when stopping the interface

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>
6 years agoiwlwifi: dbg: group trigger condition to helper function
Sara Sharon [Tue, 12 Jun 2018 07:41:35 +0000 (10:41 +0300)]
iwlwifi: dbg: group trigger condition to helper function

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>
6 years agoiwlwifi: dbg: dump memory in a helper function
Sara Sharon [Tue, 12 Jun 2018 11:34:32 +0000 (14:34 +0300)]
iwlwifi: dbg: dump memory in a helper function

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>
6 years agoiwlwifi: mvm: allow channel reorder optimization during scan
Ayala Beker [Thu, 17 May 2018 07:05:17 +0000 (10:05 +0300)]
iwlwifi: mvm: allow channel reorder optimization during scan

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>
6 years agoiwlwifi: dbg: split iwl_fw_error_dump to two functions
Sara Sharon [Mon, 11 Jun 2018 12:30:07 +0000 (15:30 +0300)]
iwlwifi: dbg: split iwl_fw_error_dump to two functions

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>
6 years agoiwlwifi: dbg: refactor dump code to improve readability
Sara Sharon [Mon, 11 Jun 2018 09:43:26 +0000 (12:43 +0300)]
iwlwifi: dbg: refactor dump code to improve readability

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>
6 years agoiwlwifi: dbg: move debug data to a struct
Sara Sharon [Mon, 11 Jun 2018 08:43:09 +0000 (11:43 +0300)]
iwlwifi: dbg: move debug data to a struct

The debug variables are bloating the iwl_fw struct.  And the fields
are out of order, missing docs and some are redundant.

Clean this up.  This serves as preparation for unionizing it for the
new ini infra.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoiwlwifi: mvm: check for n_profiles validity in EWRD ACPI
Luca Coelho [Mon, 11 Jun 2018 08:15:17 +0000 (11:15 +0300)]
iwlwifi: mvm: check for n_profiles validity in EWRD ACPI

When reading the profiles from the EWRD table in ACPI, we loop over
the data and set it into our internal table.  We use the number of
profiles specified in ACPI without checking its validity, so if the
ACPI table is corrupted and the number is larger than our array size,
we will try to make an out-of-bounds access.

Fix this by making sure the value specified in the ACPI table is
valid.

Fixes: 6996490501ed ("iwlwifi: mvm: add support for EWRD (Dynamic SAR) ACPI table")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
6 years agoqtnfmac: implement dump_station support for STA mode
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:46 +0000 (10:11 +0000)]
qtnfmac: implement dump_station support for STA mode

Current implementation of dump_station cfg80211 callback supports
AP mode only. Add support for STA mode as well: by default in STA
mode this callback is supposed to return AP on managed interface.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: drop redundant data copy in control path
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:45 +0000 (10:11 +0000)]
qtnfmac: drop redundant data copy in control path

Command responses and events from the firmware are copied twice in
control path: at first in shm core (qtnf_shm_handle_new_data) and
then in pcie bus drivers (qtnf_pcie_control_rx_callback). There
is no need to copy this data twice, it can be done only once
in rx callbacks.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: add support for scan dwell time configuration
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:43 +0000 (10:11 +0000)]
qtnfmac: add support for scan dwell time configuration

Firmware supports scan dwell time tuning for various types of scans.
Enable support for this feature:
- advertise capability to configure channel dwell time to host
- pass scan dwell parameters to wireless card in scan request

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: add support for scan flush
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:41 +0000 (10:11 +0000)]
qtnfmac: add support for scan flush

Notify firmware to flush cache before scanning when needed.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: drop error reports for out-of-bounds key indexes
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:40 +0000 (10:11 +0000)]
qtnfmac: drop error reports for out-of-bounds key indexes

On disconnect wireless core attempts to remove all the supported keys.
Following cfg80211_ops conventions, firmware returns -ENOENT code
for the out-of-bound key indexes. This is a normal behavior,
so no need to report errors for this case.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: inform wireless core about supported extended capabilities
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:38 +0000 (10:11 +0000)]
qtnfmac: inform wireless core about supported extended capabilities

Driver retrieves information about supported extended capabilities
from wireless card. However this information is not propagated
further to Linux wireless core. Fix this by setting extended
capabilities fields of wiphy structure.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: pass sgi rate info flag to wireless core
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:36 +0000 (10:11 +0000)]
qtnfmac: pass sgi rate info flag to wireless core

SGI should be passed to wireless core as a part of rate structure.
Otherwise wireless core performs incorrect rate calculation when
SGI is enabled in hardware but not reported to host.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: do not cancel scan in disconnect callback
Igor Mitsyanko [Fri, 5 Oct 2018 10:11:35 +0000 (10:11 +0000)]
qtnfmac: do not cancel scan in disconnect callback

Do not cancel scan in disconnect callback. If there is an active scan,
it will be cancelled by firmware, then host driver will be properly
notified by event.

Cancelling scan in disconnect callback occasionally may lead to the
following race issue. Host is able to queue one scan after scan
abort in disconnect callback, and another scan after scan abort
in event handler. As a result, firmware receives second scan
before the first scan completes.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: cleanup and unify command error handling
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:33 +0000 (10:11 +0000)]
qtnfmac: cleanup and unify command error handling

Unify command error handling using qtnf_cmd_resp_result_decode
function. Do not duplicate error messages in command handlers
and cfg80211 callbacks: report 'cmd exec fail' only on control
path internal failure. Remove redundant 'unlikely' macros.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: do not initialize per-MAC data multiple times
Igor Mitsyanko [Fri, 5 Oct 2018 10:11:31 +0000 (10:11 +0000)]
qtnfmac: do not initialize per-MAC data multiple times

Several members of pwr-MAC structure are re-initialized several times
together with per-VIF initialization. Fix that and simplify the code.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: request userspace to do OBSS scanning if FW can not
Igor Mitsyanko [Fri, 5 Oct 2018 10:11:30 +0000 (10:11 +0000)]
qtnfmac: request userspace to do OBSS scanning if FW can not

In case firmware reports that it can not do OBSS scanning for 40MHz
2.4GHz channels itself, tell userpsace to do that instead by setting
NL80211_FEATURE_NEED_OBSS_SCAN flag.

Signed-off-by: Igor mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: generate local disconnect event in disconnect callback
Igor Mitsyanko [Fri, 5 Oct 2018 10:11:28 +0000 (10:11 +0000)]
qtnfmac: generate local disconnect event in disconnect callback

When cfg80211 disconnect callback is triggered and command is
processed by firmware, disconnect event with local parameter
set must be sent immediately. Indicating that it's a "local"
event (not from AP) will help upper layers to process this
event correctly.

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoqtnfmac: do not track STA states in driver
Sergey Matyukevich [Fri, 5 Oct 2018 10:11:27 +0000 (10:11 +0000)]
qtnfmac: do not track STA states in driver

Remove STA connection states tracking from driver.
Leave it wireless core on host and to firmware.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agob43: remove set but not used variable 'wl'
YueHaibing [Fri, 5 Oct 2018 04:15:45 +0000 (04:15 +0000)]
b43: remove set but not used variable 'wl'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/broadcom/b43/main.c: In function 'b43_one_core_detach':
drivers/net/wireless/broadcom/b43/main.c:5496:17: warning:
 variable 'wl' set but not used [-Wunused-but-set-variable]

After commit 644aa4d62096 ("b43: remove list of IEEE 802.11 devices")
'wl' is not used any more.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agossb: chipcommon: fix fall-through annotation
Gustavo A. R. Silva [Wed, 3 Oct 2018 12:01:02 +0000 (14:01 +0200)]
ssb: chipcommon: fix fall-through annotation

Replace "Fallthough" with a proper "fall through" annotation.

This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Michael Buesch <m@bues.ch>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agozd1211rw: Replace spin_is_locked() with lockdep
Lance Roy [Wed, 3 Oct 2018 05:38:54 +0000 (22:38 -0700)]
zd1211rw: Replace spin_is_locked() with lockdep

lockdep_assert_held() is better suited to checking locking requirements,
since it won't get confused when someone else holds the lock. This is
also a step towards possibly removing spin_is_locked().

Signed-off-by: Lance Roy <ldr709@gmail.com>
Cc: Daniel Drake <dsd@gentoo.org>
Cc: Ulrich Kunitz <kune@deine-taler.de>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: <linux-wireless@vger.kernel.org>
Cc: <netdev@vger.kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agowlcore: Add support for optional wakeirq
Tony Lindgren [Mon, 1 Oct 2018 21:41:10 +0000 (14:41 -0700)]
wlcore: Add support for optional wakeirq

Now with wlcore using PM runtime, we can also add support for Linux
generic wakeirq handling for it if configured in the dts file.

The wakeirq can be configured as the second interrupt in the dts file
with interrupts-extended property where it is the padconf irq of the OOB
GPIO pin used for wlcore interrupt.

Note that eventually we should also allow configuring wlcore to use the
SDIO dat1 IRQ for wake-up, and in that case the the wakeirq should be
configured to be the padconf interrupt of the dat1 pin and not the
padconf interrupt of the OOB GPIO pin.

Cc: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agowlcore: Fix BUG with clear completion on timeout
Tony Lindgren [Mon, 1 Oct 2018 21:38:05 +0000 (14:38 -0700)]
wlcore: Fix BUG with clear completion on timeout

We do not currently clear wl->elp_compl on ELP timeout and we have bogus
lingering pointer that wlcore_irq then will try to access after recovery
is done:

BUG: spinlock bad magic on CPU#1, irq/255-wl12xx/580
...
(spin_dump) from [<c01b9344>] (do_raw_spin_lock+0xc8/0x124)
(do_raw_spin_lock) from [<c09b3970>] (_raw_spin_lock_irqsave+0x68/0x74)
(_raw_spin_lock_irqsave) from [<c01a02f0>] (complete+0x24/0x58)
(complete) from [<bf572610>] (wlcore_irq+0x48/0x17c [wlcore])
(wlcore_irq [wlcore]) from [<c01c5efc>] (irq_thread_fn+0x2c/0x64)
(irq_thread_fn) from [<c01c623c>] (irq_thread+0x148/0x290)
(irq_thread) from [<c016b4b0>] (kthread+0x160/0x17c)
(kthread) from [<c01010b4>] (ret_from_fork+0x14/0x20)
...

After that the system will hang. Let's fix this by adding a flag for
recovery and moving the recovery work call to to the error handling
section.

And we want to set WL1271_FLAG_INTENDED_FW_RECOVERY and actually clear
it too in wl1271_recovery_work() and just downgrade the error to a
warning to prevent overly verbose output.

Cc: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agortlwifi: Removed unused define and code efuse_re_pg* from wifi.h
Ping-Ke Shih [Mon, 1 Oct 2018 09:25:14 +0000 (17:25 +0800)]
rtlwifi: Removed unused define and code efuse_re_pg* from wifi.h

The following:
 bool efuse_re_pg_sec1flag;
 u8 efuse_re_pg_data[8];
are not referenced anywhere in the rtlwifi code.

This patch is originally created by Rick Veens <rickveens92@gmail.com>,
and Joe Perches <joe@perches.com> reminded to apply it to rtlwifi.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agobrcmfmac: fix full timeout waiting for action frame on-channel tx
Chung-Hsien Hsu [Thu, 27 Sep 2018 14:59:49 +0000 (14:59 +0000)]
brcmfmac: fix full timeout waiting for action frame on-channel tx

The driver sends an action frame down and waits for a completion signal
triggered by the received BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE event
to continue the process. However, the action frame could be transmitted
either on the current channel or on an off channel. For the on-channel
case, only BRCMF_E_ACTION_FRAME_COMPLETE event will be received when
the frame is transmitted, which make the driver always wait a full
timeout duration. This patch has the completion signal be triggered by
receiving the BRCMF_E_ACTION_FRAME_COMPLETE event for the on-channel
case.

This change fixes WFA p2p certification 5.1.19 failure.

Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agobrcmfmac: reduce timeout for action frame scan
Chung-Hsien Hsu [Thu, 27 Sep 2018 14:59:44 +0000 (14:59 +0000)]
brcmfmac: reduce timeout for action frame scan

Finding a common channel to send an action frame out is required for
some action types. Since a loop with several scan retry is used to find
the channel, a short wait time could be considered for each attempt.
This patch reduces the wait time from 1500 to 450 msec for each action
frame scan.

This patch fixes the WFA p2p certification 5.1.20 failure caused by the
long action frame send time.

Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
6 years agoMerge tag 'mt76-for-kvalo-2018-10-01' of https://github.com/nbd168/wireless
Kalle Valo [Thu, 4 Oct 2018 05:35:58 +0000 (08:35 +0300)]
Merge tag 'mt76-for-kvalo-2018-10-01' of https://github.com/nbd168/wireless

mt76 patches for 4.20

* unify code between mt76x0, mt76x2
* mt76x0 fixes
* tx power configuration fix for 76x2
* more progress on mt76x0e support
* support for getting firmware version via ethtool
* fix for rx buffer allocation regression on usb
* fix for handling powersave responses
* fix for mt76x2 beacon transmission

6 years agoMerge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
Kalle Valo [Thu, 4 Oct 2018 05:33:42 +0000 (08:33 +0300)]
Merge ath-next from git://git./linux/kernel/git/kvalo/ath.git

ath.git patches for 4.20. Major changes:

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

6 years agotls: Add support for inplace records encryption
Vakul Garg [Sun, 30 Sep 2018 02:34:35 +0000 (08:04 +0530)]
tls: Add support for inplace records encryption

Presently, for non-zero copy case, separate pages are allocated for
storing plaintext and encrypted text of records. These pages are stored
in sg_plaintext_data and sg_encrypted_data scatterlists inside record
structure. Further, sg_plaintext_data & sg_encrypted_data are passed
to cryptoapis for record encryption. Allocating separate pages for
plaintext and encrypted text is inefficient from both required memory
and performance point of view.

This patch adds support of inplace encryption of records. For non-zero
copy case, we reuse the pages from sg_encrypted_data scatterlist to
copy the application's plaintext data. For the movement of pages from
sg_encrypted_data to sg_plaintext_data scatterlists, we introduce a new
function move_to_plaintext_sg(). This function add pages into
sg_plaintext_data from sg_encrypted_data scatterlists.

tls_do_encryption() is modified to pass the same scatterlist as both
source and destination into aead_request_set_crypt() if inplace crypto
has been enabled. A new ariable 'inplace_crypto' has been introduced in
record structure to signify whether the same scatterlist can be used.
By default, the inplace_crypto is enabled in get_rec(). If zero-copy is
used (i.e. plaintext data is not copied), inplace_crypto is set to '0'.

Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Reviewed-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: dsa: lantiq: Fix path in MAINTAINERS file
Hauke Mehrtens [Sat, 29 Sep 2018 11:26:30 +0000 (13:26 +0200)]
net: dsa: lantiq: Fix path in MAINTAINERS file

The MAINTAINERS file contained the wrong file name of the driver.

Fixes: 14fceff4771e ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agohv_netvsc: remove ndo_poll_controller
Stephen Hemminger [Sat, 29 Sep 2018 12:52:56 +0000 (14:52 +0200)]
hv_netvsc: remove ndo_poll_controller

Similar to other patches from ERic.

As diagnosed by Song Liu, ndo_poll_controller() can
be very dangerous on loaded hosts, since the cpu
calling ndo_poll_controller() might steal all NAPI
contexts (for all RX/TX queues of the NIC). This capture
can last for unlimited amount of time, since one
cpu is generally not able to drain all the queues under load.

In netvsc driver it uses NAPI for TX completions. The default
poll_napi will do this for us now and avoid the capture.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Eric Dumazet <edumazet@google.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMAINTAINERS: Fix wrong include file path
Andrew Lunn [Sat, 29 Sep 2018 19:57:02 +0000 (21:57 +0200)]
MAINTAINERS: Fix wrong include file path

Fix the patch for the mv88e6xxx.h header file in MAINTAINERS

Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetoot...
David S. Miller [Wed, 3 Oct 2018 05:34:54 +0000 (22:34 -0700)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: bluetooth-next 2018-09-30

Here's the first bluetooth-next pull request for the 4.20 kernel.

 - Fixes & cleanups to hci_qca driver
 - NULL dereference fix to debugfs
 - Improved L2CAP Connection-oriented Channel MTU & MPS handling
 - Added support for USB-based RTL8822C controller
 - Added device ID for BCM4335C0 UART-based controller
 - Various other smaller cleanups & fixes

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agocxgb4: Use proper enum in IEEE_FAUX_SYNC
Nathan Chancellor [Mon, 1 Oct 2018 03:47:38 +0000 (20:47 -0700)]
cxgb4: Use proper enum in IEEE_FAUX_SYNC

Clang warns when one enumerated type is implicitly converted to another.

drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c:390:4: warning: implicit
conversion from enumeration type 'enum cxgb4_dcb_state' to different
enumeration type 'enum cxgb4_dcb_state_input' [-Wenum-conversion]
                        IEEE_FAUX_SYNC(dev, dcb);
                        ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h:70:10: note: expanded
from macro 'IEEE_FAUX_SYNC'
                                            CXGB4_DCB_STATE_FW_ALLSYNCED);
                                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Use the equivalent value of the expected type to silence Clang while
resulting in no functional change.

CXGB4_DCB_STATE_FW_ALLSYNCED = CXGB4_DCB_INPUT_FW_ALLSYNCED = 3

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agocxgb4: Use proper enum in cxgb4_dcb_handle_fw_update
Nathan Chancellor [Mon, 1 Oct 2018 03:51:43 +0000 (20:51 -0700)]
cxgb4: Use proper enum in cxgb4_dcb_handle_fw_update

Clang warns when one enumerated type is implicitly converted to another.

drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c:303:7: warning: implicit
conversion from enumeration type 'enum cxgb4_dcb_state' to different
enumeration type 'enum cxgb4_dcb_state_input' [-Wenum-conversion]
                         ? CXGB4_DCB_STATE_FW_ALLSYNCED
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c:304:7: warning: implicit
conversion from enumeration type 'enum cxgb4_dcb_state' to different
enumeration type 'enum cxgb4_dcb_state_input' [-Wenum-conversion]
                         : CXGB4_DCB_STATE_FW_INCOMPLETE);
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 warnings generated.

Use the equivalent value of the expected type to silence Clang while
resulting in no functional change.

CXGB4_DCB_STATE_FW_INCOMPLETE = CXGB4_DCB_INPUT_FW_INCOMPLETE = 2
CXGB4_DCB_STATE_FW_ALLSYNCED = CXGB4_DCB_INPUT_FW_ALLSYNCED = 3

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agodpaa_eth: Remove useless declaration
Nathan Chancellor [Mon, 1 Oct 2018 04:10:29 +0000 (21:10 -0700)]
dpaa_eth: Remove useless declaration

Clang warns:

drivers/net/ethernet/freescale/dpaa/dpaa_eth.c:2734:34: warning:
tentative array definition assumed to have one element
static const struct of_device_id dpaa_match[];
                                 ^
1 warning generated.

Turns out that since this driver was introduced in commit 9ad1a3749333
("dpaa_eth: add support for DPAA Ethernet"), this declaration has been
unused. Remove it to silence the warning.

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoipv6: add vrf table handling code for ipv6 mcast
Patrick Ruddy [Mon, 1 Oct 2018 08:41:27 +0000 (09:41 +0100)]
ipv6: add vrf table handling code for ipv6 mcast

The code to obtain the correct table for the incoming interface was
missing for IPv6. This has been added along with the table creation
notification to fib rules for the RTNL_FAMILY_IP6MR address family.

Signed-off-by: Patrick Ruddy <pruddy@vyatta.att-mail.com>
Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoipv4: Allow sending multicast packets on specific i/f using VRF socket
Robert Shearman [Mon, 1 Oct 2018 08:40:23 +0000 (09:40 +0100)]
ipv4: Allow sending multicast packets on specific i/f using VRF socket

It is useful to be able to use the same socket for listening in a
specific VRF, as for sending multicast packets out of a specific
interface. However, the bound device on the socket currently takes
precedence and results in the packets not being sent.

Relax the condition on overriding the output interface to use for
sending packets out of UDP, raw and ping sockets to allow multicast
packets to be sent using the specified multicast interface.

Signed-off-by: Robert Shearman <rshearma@vyatta.att-mail.com>
Signed-off-by: Mike Manning <mmanning@vyatta.att-mail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agobridge: mcast: Default back to multicast enabled state
Ido Schimmel [Mon, 1 Oct 2018 08:57:01 +0000 (11:57 +0300)]
bridge: mcast: Default back to multicast enabled state

Commit 13cefad2f2c1 ("net: bridge: convert and rename mcast disabled")
converted the 'multicast_disabled' field to an option bit named
'BROPT_MULTICAST_ENABLED'.

While the old field was implicitly initialized to 0, the new field is
not initialized, resulting in the bridge defaulting to multicast
disabled state and breaking existing applications.

Fix this by explicitly initializing the option.

Fixes: 13cefad2f2c1 ("net: bridge: convert and rename mcast disabled")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch 'dpaa2-eth-Add-support-for-Rx-flow-classification'
David S. Miller [Wed, 3 Oct 2018 05:24:08 +0000 (22:24 -0700)]
Merge branch 'dpaa2-eth-Add-support-for-Rx-flow-classification'

Ioana Radulescu says:

====================
dpaa2-eth: Add support for Rx flow classification

The Management Complex (MC) firmware initially allowed the
configuration of a single key to be used both for Rx flow hashing
and flow classification. This prevented us from supporting
Rx flow classification independently of the hash key configuration.

Newer firmware versions expose separate commands for
configuring the two types of keys, so we can use them to
introduce Rx classification support. For frames that don't match
any classification rule, we fall back to statistical distribution
based on the current hash key.

The first patch in this set updates the Rx hashing code to use
the new firmware API for key config. Subsequent patches introduce
the firmware API for configuring the classification and actual
support for adding and deleting rules via ethtool.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agodpaa2-eth: Add ethtool support for flow classification
Ioana Radulescu [Mon, 1 Oct 2018 10:44:58 +0000 (13:44 +0300)]
dpaa2-eth: Add ethtool support for flow classification

Add support for inserting and deleting Rx flow classification
rules through ethtool.

We support classification based on some header fields for
flow-types ether, ip4, tcp4, udp4 and sctp4.

Rx queues are core affine, so the action argument effectively
selects on which cpu the matching frame will be processed.
Discarding the frame is also supported.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agodpaa2-eth: Configure Rx flow classification key
Ioana Radulescu [Mon, 1 Oct 2018 10:44:57 +0000 (13:44 +0300)]
dpaa2-eth: Configure Rx flow classification key

For firmware versions that support it, configure an Rx flow
classification key at probe time.

Hardware expects all rules in the classification table to share
the same key. So we setup a key containing all supported fields
at driver init and when a user adds classification rules through
ethtool, we will just mask out the unused header fields.

Since the key composition process is the same for flow
classification and hashing, reuse existing code where possible.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agodpaa2-eth: Rename structure
Ioana Radulescu [Mon, 1 Oct 2018 10:44:56 +0000 (13:44 +0300)]
dpaa2-eth: Rename structure

Since the array of supported header fields will be used for
Rx flow classification as well, rename it from "hash_fields" to
the more inclusive "dist_fields".

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agodpaa2-eth: Use new API for Rx flow hashing
Ioana Radulescu [Mon, 1 Oct 2018 10:44:55 +0000 (13:44 +0300)]
dpaa2-eth: Use new API for Rx flow hashing

The Management Complex (MC) firmware initially allowed the
configuration of a single key to be used both for Rx flow hashing
and flow classification. This prevented us from supporting
Rx flow classification through ethtool.

Starting with version 10.7.0, the Management Complex(MC) offers
a new set of APIs for separate configuration of Rx hashing and
classification keys.

Update the Rx flow hashing support to use the new API, if available.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: usbnet: make driver_info const
Ben Dooks [Mon, 1 Oct 2018 16:02:43 +0000 (17:02 +0100)]
net: usbnet: make driver_info const

The driver_info field that is used for describing each of the usb-net
drivers using the usbnet.c core all declare their information as const
and the usbnet.c itself does not try and modify the struct.

It is therefore a good idea to make this const in the usbnet.c structure
in case anyone tries to modify it.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agotcp: do not release socket ownership in tcp_close()
Eric Dumazet [Tue, 2 Oct 2018 06:24:26 +0000 (23:24 -0700)]
tcp: do not release socket ownership in tcp_close()

syzkaller was able to hit the WARN_ON(sock_owned_by_user(sk));
in tcp_close()

While a socket is being closed, it is very possible other
threads find it in rtnetlink dump.

tcp_get_info() will acquire the socket lock for a short amount
of time (slow = lock_sock_fast(sk)/unlock_sock_fast(sk, slow);),
enough to trigger the warning.

Fixes: 67db3e4bfbc9 ("tcp: no longer hold ehash lock while calling tcp_get_info()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: inet6_rtm_getroute() - use new style struct initializer instead of memset
Maciej Żenczykowski [Sun, 30 Sep 2018 06:44:54 +0000 (23:44 -0700)]
net: inet6_rtm_getroute() - use new style struct initializer instead of memset

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: rtm_to_fib6_config() - use new style struct initializer instead of memset
Maciej Żenczykowski [Sun, 30 Sep 2018 06:44:53 +0000 (23:44 -0700)]
net: rtm_to_fib6_config() - use new style struct initializer instead of memset

(allows for better compiler optimization)

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: rtmsg_to_fib6_config() - use new style struct initializer instead of memset
Maciej Żenczykowski [Sun, 30 Sep 2018 06:44:52 +0000 (23:44 -0700)]
net: rtmsg_to_fib6_config() - use new style struct initializer instead of memset

(allows for better compiler optimization)

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: ip6_update_pmtu() - use new style struct initializer instead of memset
Maciej Żenczykowski [Sun, 30 Sep 2018 06:44:51 +0000 (23:44 -0700)]
net: ip6_update_pmtu() - use new style struct initializer instead of memset

(allows for better compiler optimization)

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: remove 1 always zero parameter from ip6_redirect_no_header()
Maciej Żenczykowski [Sun, 30 Sep 2018 06:44:50 +0000 (23:44 -0700)]
net: remove 1 always zero parameter from ip6_redirect_no_header()

(the parameter in question is mark)

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: ip6_redirect_no_header() - use new style struct initializer instead of memset
Maciej Żenczykowski [Sun, 30 Sep 2018 06:44:49 +0000 (23:44 -0700)]
net: ip6_redirect_no_header() - use new style struct initializer instead of memset

(allows for better compiler optimization)

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: ip6_redirect() - use new style struct initializer instead of memset
Maciej Żenczykowski [Sun, 30 Sep 2018 06:44:48 +0000 (23:44 -0700)]
net: ip6_redirect() - use new style struct initializer instead of memset

(allows for better compiler optimization)

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: inet_rtm_getroute() - use new style struct initializer instead of memset
Maciej Żenczykowski [Sun, 30 Sep 2018 06:44:47 +0000 (23:44 -0700)]
net: inet_rtm_getroute() - use new style struct initializer instead of memset

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: ip_rt_get_source() - use new style struct initializer instead of memset
Maciej Żenczykowski [Sun, 30 Sep 2018 06:44:46 +0000 (23:44 -0700)]
net: ip_rt_get_source() - use new style struct initializer instead of memset

(allows for better compiler optimization)

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge tag 'wireless-drivers-next-for-davem-2018-10-02' of git://git.kernel.org/pub...
David S. Miller [Tue, 2 Oct 2018 18:46:29 +0000 (11:46 -0700)]
Merge tag 'wireless-drivers-next-for-davem-2018-10-02' of git://git./linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.20

First set of new features for 4.20. mt76 driver is going through major
refactoring and that's why there are so many mt76 patches. iwlwifi is
also under heavy development and smaller changes to other drivers.

Also wireless-drivers was merged to fix a conflict between the two trees.

Major changes:

ath10k

* limit available channels via DT ieee80211-freq-limit

wil6210

* add 802.11r Fast Roaming support for AP and station modes

* add support for channel 4

iwlwifi

* new FW API handling

* some improvements in the PCI recovery mechanism

* enable a new scanning feature;

* continued work on HE (mostly radiotap)

* TKIP implementation in new devices

* work continues for new 22560 hardware

mt76

* add support for Alfa AWUS036ACM

* lots of refactoring to make it easier to add new hardware support

* prepare for adding mt76x0e (pci-e variant) support

* add CONFIG_MT76x0E kconfig symbol

brcmfmac

* add support CYW89342 mini-PCIe device

* add 4-way handshake offload detection for FT-802.1X

* enable NL80211_EXT_FEATURE_CQM_RSSI_LIST

* fix for proper support of 160MHz bandwidth

rtl8xxxu

* add rtl8188ctv support
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next...
David S. Miller [Tue, 2 Oct 2018 18:39:09 +0000 (11:39 -0700)]
Merge branch '100GbE' of git://git./linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
100GbE Intel Wired LAN Driver Updates 2018-10-02

This series contains updates to ice driver only.

Anirudh expands the use of VSI handles across the rest of the driver,
which includes refactoring the code to correctly use VSI handles.  After
a reset, ensure that all configurations for a VSI get re-applied before
moving on to rebuilding the next VSI.

Dave fixed the driver to check the current link state after reset to
ensure that the correct link state of a port is reported.  Fixed an
issue where if the driver is unloaded when traffic is in progress,
errors are generated.

Preethi breaks up the IRQ tracker into a software and hardware IRQ
tracker, where the software IRQ tracker tracks only the PF's IRQ
requests and does not play any role in the VF initialization.  The
hardware IRQ tracker represents the device's interrupt space and will be
looked up to see if the device has run our of interrupts when a
interrupt has to be allocated in the device for either PF or VF.

Md Fahad adds support for enabling/disabling RSS via ethtool.

Brett aligns the ice_reset_req enum values to the values that the
hardware understands.  Also added initial support for dynamic interrupt
moderation in the ice driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch 'qed-20g'
David S. Miller [Tue, 2 Oct 2018 18:29:41 +0000 (11:29 -0700)]
Merge branch 'qed-20g'

Sudarsana Reddy Kalluru says:

====================
qed*: Driver support for 20G link speed.

The patch series adds driver support for configuring/reading the 20G link
speed.

Please consider applying this to "net-next".
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoqede: Add driver support for 20G link speed.
Sudarsana Reddy Kalluru [Tue, 2 Oct 2018 13:16:12 +0000 (06:16 -0700)]
qede: Add driver support for 20G link speed.

Add driver support for reading/configuring the 20G link speed via ethtool.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoqed: Add driver support for 20G link speed.
Sudarsana Reddy Kalluru [Tue, 2 Oct 2018 13:16:11 +0000 (06:16 -0700)]
qed: Add driver support for 20G link speed.

Add driver support for configuring/reading the 20G link speed.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoisdn/hisax: Fix fall-through annotation
Gustavo A. R. Silva [Tue, 2 Oct 2018 10:28:32 +0000 (12:28 +0200)]
isdn/hisax: Fix fall-through annotation

Replace "fallthru" with a proper "fall through" annotation.

This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: drop unused skb_append_datato_frags()
Paolo Abeni [Tue, 2 Oct 2018 09:03:40 +0000 (11:03 +0200)]
net: drop unused skb_append_datato_frags()

This helper is unused since commit 988cf74deb45 ("inet:
Stop generating UFO packets.")

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoice: Fix error on driver remove
Dave Ertman [Thu, 20 Sep 2018 00:43:07 +0000 (17:43 -0700)]
ice: Fix error on driver remove

If the driver is unloaded when traffic is in progress, errors are
generated. Fix this by releasing qvectors and NAPI handler on remove.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoice: Add support for dynamic interrupt moderation
Brett Creeley [Thu, 20 Sep 2018 00:23:19 +0000 (17:23 -0700)]
ice: Add support for dynamic interrupt moderation

Currently there is no support for dynamic interrupt moderation. This
patch adds some initial code to support this. The following changes
were made:

1. Currently we are using multiple members to store the interrupt
   granularity (itr_gran_25/50/100/200). This is not necessary because
   we can query the device to determine what the interrupt granularity
   should be set to, done by a new function ice_get_itr_intrl_gran.

2. Added intrl to ice_q_vector structure to support interrupt rate
   limiting.

3. Added the function ice_intrl_usecs_to_reg for converting to a value
   in usecs that the device understands.

4. Added call to write to the GLINT_RATE register. Disable intrl by
   default for now.

5. Changed rx/tx_itr_setting to itr_setting because having both seems
   redundant because a ring is either Tx or Rx.

6. Initialize itr_setting for both Tx/Rx rings in ice_vsi_alloc_rings()

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoice: Align ice_reset_req enum values to hardware reset values
Brett Creeley [Thu, 20 Sep 2018 00:23:18 +0000 (17:23 -0700)]
ice: Align ice_reset_req enum values to hardware reset values

Currently the ice_reset_req enum values have to be translated into
a different set of values that the hardware understands for the same
reset types. Avoid this translation by aligning ice_reset_req enum
values to the ones that the hardware understands.

Also add and else if block to check for ICE_RESET_EMPR and put a dev_dbg
message in the else case.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoice: Implement ethtool hook for RSS switch
Md Fahad Iqbal Polash [Thu, 20 Sep 2018 00:23:17 +0000 (17:23 -0700)]
ice: Implement ethtool hook for RSS switch

This patch implements ethtool hook for enabling/disabling
RSS. While disabling RSS, the LUT should be cleared. And
the LUT should be reconfigured while enabling RSS.

Signed-off-by: Md Fahad Iqbal Polash <md.fahad.iqbal.polash@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoice: Split irq_tracker into sw_irq_tracker and hw_irq_tracker
Preethi Banala [Thu, 20 Sep 2018 00:23:16 +0000 (17:23 -0700)]
ice: Split irq_tracker into sw_irq_tracker and hw_irq_tracker

For the PF driver, when mapping interrupts to queues, we need to request
IRQs from the kernel and we also have to allocate interrupts from
the device.

Similarly, when the VF driver (iavf.ko) initializes, it requests the kernel
IRQs that it needs but it can't directly allocate interrupts in the device.
Instead, it sends a mailbox message to the ice driver, which then allocates
interrupts in the device on the VF driver's behalf.

Currently both these cases end up having to reserve entries in
pf->irq_tracker but irq_tracker itself is sized based on how many vectors
the PF driver needs. Under the right circumstances, the VF driver can fail
to get entries in irq_tracker, which will result in the VF driver failing
probe.

To fix this, sw_irq_tracker and hw_irq_tracker are introduced. The
sw_irq_tracker tracks only the PF's IRQ request and doesn't play any
role in VF init. hw_irq_tracker represents the device's interrupt space.
When interrupts have to be allocated in the device for either PF or VF,
hw_irq_tracker will be looked up to see if the device has run out of
interrupts.

Signed-off-by: Preethi Banala <preethi.banala@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoice: Check for actual link state of port after reset
Dave Ertman [Thu, 20 Sep 2018 00:23:15 +0000 (17:23 -0700)]
ice: Check for actual link state of port after reset

We are currently replaying the link state of a port after a reset, but
it is possible that the link state of a port can change during the reset
process. So check for the current link state of a port during the rebuild
process of a reset.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoice: Implement VSI replay framework
Anirudh Venkataramanan [Thu, 20 Sep 2018 00:23:14 +0000 (17:23 -0700)]
ice: Implement VSI replay framework

Currently, switch filters get replayed after reset. In addition to
filters, other VSI attributes (like RSS configuration, Tx scheduler
configuration, etc.) also need to be replayed after reset.

Thus, instead of replaying based on functional blocks (i.e. replay
all filters for all VSIs, followed by RSS configuration replay for
all VSIs, and so on), it makes more sense to have the replay centered
around a VSI. In other words, replay all configurations for a VSI before
moving on to rebuilding the next VSI.

To that effect, this patch introduces a VSI replay framework in a new
function ice_vsi_replay_all. Currently it only replays switch filters,
but it will be expanded in the future to replay additional VSI attributes.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoice: Expand use of VSI handles part 2/2
Anirudh Venkataramanan [Thu, 20 Sep 2018 00:23:13 +0000 (17:23 -0700)]
ice: Expand use of VSI handles part 2/2

This patch is a continuation of the previous patch where VSI
handles are used instead of VSI numbers.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoice: Expand use of VSI handles part 1/2
Anirudh Venkataramanan [Thu, 20 Sep 2018 00:23:12 +0000 (17:23 -0700)]
ice: Expand use of VSI handles part 1/2

A VSI handle is just a number the driver maintains to uniquely identify
a VSI. A VSI handle is backed by a VSI number in the hardware. When
interacting when the hardware, VSI handles are converted into VSI numbers.

In commit 0f9d5027a749 ("ice: Refactor VSI allocation, deletion and
rebuild flow"), VSI handles were introduced but it was used only
when creating and deleting VSIs. This patch is part one of two patches
that expands the use of VSI handles across the rest of the driver. Also
in this patch, certain parts of the code had to be refactored to correctly
use VSI handles.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
6 years agoMerge branch 'ibmvnic-Implement-driver-defined-queue-limits'
David S. Miller [Tue, 2 Oct 2018 06:31:16 +0000 (23:31 -0700)]
Merge branch 'ibmvnic-Implement-driver-defined-queue-limits'

Thomas Falcon says:

====================
ibmvnic: Implement driver-defined queue limits

In this patch series, update the ibmvnic driver to use driver-defined
queue limits instead of limits imposed by the Virtual I/O server
management partition. For some deviced, initial max queue size and
amount limits, despite their definition, can actually be exceeded if
the client driver requests it. With this in mind, define a private
ethtool flag that toggles the use of driver-defined limits. These
limits are currently more than what supported hardware will likely
allow, so the driver will attempt to get as close as possible to
the user request but may not fully succeed.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoibmvnic: Add ethtool private flag for driver-defined queue limits
Thomas Falcon [Fri, 28 Sep 2018 23:38:26 +0000 (18:38 -0500)]
ibmvnic: Add ethtool private flag for driver-defined queue limits

When choosing channel amounts and ring sizes, the maximums in the
ibmvnic driver are defined by the virtual i/o server management
partition. Even though they are defined as maximums, the client
driver may in fact successfully request resources that exceed
these limits, which are mostly dependent on a user's hardware

With this in mind, provide an ethtool flag that when enabled will
allow the user to request resources limited by driver-defined
maximums instead of limits defined by the management partition.
The driver will try to honor the user's request but may not allowed
by the management partition. In this case, the driver requests
as close as it can get to the desired amount until it succeeds.

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoibmvnic: Introduce driver limits for ring sizes
Thomas Falcon [Fri, 28 Sep 2018 23:38:25 +0000 (18:38 -0500)]
ibmvnic: Introduce driver limits for ring sizes

Introduce driver-defined maximums for queue ring sizes. Devices
available for IBM vNIC today will likely not allow this amount,
but this should give us some leeway for future devices that may
support larger ring sizes.

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoibmvnic: Increase maximum queue size limit
Thomas Falcon [Fri, 28 Sep 2018 23:38:24 +0000 (18:38 -0500)]
ibmvnic: Increase maximum queue size limit

Increase queue size limit to 16. Devices available for IBM vNIC today
will not allow this amount, but this should give us some leeway for
future devices that may support more RX or TX queues.

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: phy: Convert to using %pOFn instead of device_node.name
Rob Herring [Fri, 28 Sep 2018 22:04:59 +0000 (17:04 -0500)]
net: phy: Convert to using %pOFn instead of device_node.name

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Andrew Lunn <andrew@lunn.ch>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agotcp/fq: move back to CLOCK_MONOTONIC
Eric Dumazet [Fri, 28 Sep 2018 17:28:44 +0000 (10:28 -0700)]
tcp/fq: move back to CLOCK_MONOTONIC

In the recent TCP/EDT patch series, I switched TCP and sch_fq
clocks from MONOTONIC to TAI, in order to meet the choice done
earlier for sch_etf packet scheduler.

But sure enough, this broke some setups were the TAI clock
jumps forward (by almost 50 year...), as reported
by Leonard Crestez.

If we want to converge later, we'll probably need to add
an skb field to differentiate the clock bases, or a socket option.

In the meantime, an UDP application will need to use CLOCK_MONOTONIC
base for its SCM_TXTIME timestamps if using fq packet scheduler.

Fixes: 72b0094f9182 ("tcp: switch tcp_clock_ns() to CLOCK_TAI base")
Fixes: 142537e41923 ("net_sched: sch_fq: switch to CLOCK_TAI")
Fixes: fd2bca2aa789 ("tcp: switch internal pacing timer to CLOCK_TAI")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Leonard Crestez <leonard.crestez@nxp.com>
Tested-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoselftests/tls: Fix recv(MSG_PEEK) & splice() test cases
Vakul Garg [Fri, 28 Sep 2018 16:18:08 +0000 (21:48 +0530)]
selftests/tls: Fix recv(MSG_PEEK) & splice() test cases

TLS test cases splice_from_pipe, send_and_splice &
recv_peek_multiple_records expect to receive a given nummber of bytes
and then compare them against the number of bytes which were sent.
Therefore, system call recv() must not return before receiving the
requested number of bytes, otherwise the subsequent memcmp() fails.
This patch passes MSG_WAITALL flag to recv() so that it does not return
prematurely before requested number of bytes are copied to receive
buffer.

Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agohv_netvsc: Fix rndis_per_packet_info internal field initialization
Haiyang Zhang [Fri, 28 Sep 2018 14:41:23 +0000 (14:41 +0000)]
hv_netvsc: Fix rndis_per_packet_info internal field initialization

The RSC feature -- a bit field "internal" was added here with total
size unchanged:
struct rndis_per_packet_info {
u32 size;
u32 type:31;
u32 internal:1;
u32 ppi_offset;
};

On TX path, we put rndis msg into skb head room, which is not zeroed
before passing to us. We do not use the "internal" field in TX path,
but it may impact older hosts which use the entire 32 bits as "type".

To fix the bug, this patch sets the field "internal" to zero.

Fixes: c8e4eff4675f ("hv_netvsc: Add support for LRO/RSC in the vSwitch")
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: phy: improve handling delayed work
Heiner Kallweit [Fri, 28 Sep 2018 06:51:09 +0000 (08:51 +0200)]
net: phy: improve handling delayed work

Using mod_delayed_work() allows to simplify handling delayed work and
removes the need for the sync parameter in phy_trigger_machine().
Also introduce a helper phy_queue_state_machine() to encapsulate the
low-level delayed work calls. No functional change intended.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>