Suspend and crash dump operations can happen simultaneously
in case there is a FW assert during the suspend procedure
or when SSR calls all the devices crashdump callbacks.

To prevent that, a new flag is added, indicating that the
dumps collection is in progress, in order to allow the
suspend/reset decline if the dumps collection already started.
Signed-off-by: NMaya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

In some cases the platform should be aware of the FW capabilities
to decide which feature to enable.
For example, FW can control the external REF clock for power saving.
Driver should notify the platform about that, to allow platform
power management optimization.
Signed-off-by: NMaya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Add get_capa callback to platform ops to allow reading the platform
capabilities.
Supported capabilities:
- Keeping 11ad connection during suspend
- T_POWER_ON 0 support
- Usage of external clock
Signed-off-by: NMaya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Add the option to support 40bit addresses since some platforms
may not support 48bits but support 40bits
Signed-off-by: NLazar Alexei <qca_ailizaro@qca.qualcomm.com>
Signed-off-by: NMaya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Add support for sched_scan_start/stop by sending PNO commands to FW.
Driver reports max_sched_scan_reqs and invokes
cfg80211_sched_scan_results upon receiving WMI_SCHED_SCAN_RESULT_EVENTID
from FW.
Signed-off-by: NDedy Lansky <qca_dlansky@qca.qualcomm.com>
Signed-off-by: NMaya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Update year for Qualcomm Atheros, Inc. copyrights.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

Copy two regions of registers and bigger DRAM region to the dump file.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

Add memory dump to the firmware crash data file which is provided to user space
via devcoredump interface. This makes it easier for firmware engineers to debug
firmware crashes.

Due to increased memory consumption the memory dump is disabled by default. To
enable it make sure that bit 3 is set in coredump_mask module parameter:

modprobe ath10k_core coredump_mask=0xffffffff

When RAMDUMP is enabled a buffer for the dump is allocated with vmalloc during
device probe. The actual memory layout is different in hardware versions and
the layouts are defined in coredump.c. The memory is split to regions and, to
get even finegrained control of what to copy, the region can split to smaller
sections as not all registers are readable (which could cause the whole system
to stall).
Signed-off-by: NAlan Liu <alanliu@qca.qualcomm.com>
[kvalo@qca.qualcomm.com: refactoring and cleanup]
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

For memory dump support (it consumes quite a lot of memory) we need to control
what is exactly stored to the crash dump. Add a module parameter call
coredump_mask to do that. It's a bit mask of these values:

enum ath10k_fw_crash_dump_type {
	ATH10K_FW_CRASH_DUMP_REGISTERS = 0,
	ATH10K_FW_CRASH_DUMP_CE_DATA = 1,

	ATH10K_FW_CRASH_DUMP_MAX,
};

For example, if we only want to store CE_DATA we would enable bit 2:

modprobe ath10k_core coredump_mask=0x2
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

Now coredump is totally separate from debug.c and doesn't depend on
CONFIG_ATH10K_DEBUGFS anymore, only on CONFIG_DEV_COREDUMP. Also remove
leftovers from the removed debugfs file support.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

In preparation to add RAM dump support. No functional changes, only moving code
and renaming function names.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

The fw_crash_dump file was deprecated by commmit 727000e6 ("ath10k: support
dev_coredump for crash dump") in v4.11 in favor of dev_coredump interface,
remove it now for good. Everyone should use dev_coredump now.
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

Enable TDLS wider bandwidth support for 5GHz based on firmware wmi capabilities.

This patch is required for chipset QCA9888. Tested with firmware version
10.4-3.5.1-00018.
Signed-off-by: NBalaji Pothunoori <bpothuno@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

HL1.0 firmware is not loaded via bmi. The bmi specific
code should not be executed for HL1.0

Add fw feature flag for non bmi targets and skip the bmi
specific code for non bmi targets.
Signed-off-by: NRakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

WCN3990 target uses SNOC bus.
Add debug mask for SNOC bus type.
Signed-off-by: NGovind Singh <govinds@qti.qualcomm.com>
Signed-off-by: NRakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

WCN3990 is integrated chipset which uses system NOC.
Add SNOC bus type and related definitions.
Signed-off-by: NGovind Singh <govinds@qti.qualcomm.com>
Signed-off-by: NRakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

WCN3990 CE descriptor uses 64bit address for
src/dst ring buffer. It has extended field for toeplitz
hash result, which is being used for HW assisted
hash results.

To accommodate WCN3990 descriptor, define new CE
descriptor for extended addressing mode and related
methods to handle the descriptor data.
Signed-off-by: NGovind Singh <govinds@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

CE send and receive API's are using u32 ring address, which
truncates the address for target with 64bit addressing range.
Use dma_addr_t for ce buffers to support target with extended
addressing range.
Signed-off-by: NGovind Singh <govinds@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

paddrs_ring_64 holds the physical device address of the
rx buffers that host SW provides for the MAC HW to fill.
Since this field is used in rx ring setup and rx ring
replenish in rx data path. Define separate methods
for handling 64 bit ring paddr and attach them dynamically
based on target_64bit hw param flag. Use u64 type
while popping paddr from the rx hash table for 64bit target.
Signed-off-by: NGovind Singh <govinds@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

WCN3990 uses larger ring size in comparison to existing
ring size value.
Add rx ring size hw param for supporting different rx ring
size across multiple target.
Signed-off-by: NGovind Singh <govinds@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

WCN3990 target uses 64 bit frags_paddr in htt tx descriptor,
which holds the physical address of SKB fragments in tx data path.

In order to support 64 bit bit frags_paddr in htt tx descriptor, define
htt_data_tx_desc_64 descriptor and ath10k_htt_tx_64 method for handling
tx data path with new descriptor fields.
Signed-off-by: NGovind Singh <govinds@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

WCN3990 target uses 64 bit frag descriptor and more
fields in TSO flag.
Add support for 64 bit HTT frag descriptor.
Signed-off-by: NGovind Singh <govinds@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

WCN3900 target uses 64bit rx_ring_base_paddr and
fw_idx_shadow_reg_paddr fields in HTT rx ring cfg message.
These address points to the memory region where remote
ring empty buffers are allocated.
In order to add 64 bit htt rx ring cfg, define separate
64 bit htt rx ring cfg message and attach it in runtime
based on target_64bit hw param flag.
Signed-off-by: NGovind Singh <govinds@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

WCN3990 target use 64bit msdu address in htt in-order
indication message. Add support for 64 bit msdu address in
HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND message.
Signed-off-by: NGovind Singh <govinds@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

WCN3990 rx descriptor uses different offset of msdu start, msdu end,
ppdu end, rx pkt end and rx frag info.
To accommodate different offsets, define respective fields in
rx descriptor of WCN3990 target.
Signed-off-by: NGovind Singh <govinds@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

WCN3990 target supports 37-bit addressing mode. In order
to accommodate extended address support, add hw param to
indicate if the target supports addressing above 32-bits.
Signed-off-by: NRakesh Pillai <pillair@qti.qualcomm.com>
Signed-off-by: NGovind Singh <govinds@qti.qualcomm.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

The #ifdef checks are hard to get right, in this case some functions
should have been left inside a CONFIG_PM_SLEEP check as seen by this
message:

drivers/net/wireless/ath/wil6210/pcie_bus.c:489:12: error: 'wil6210_pm_resume' defined but not used [-Werror=unused-function]
drivers/net/wireless/ath/wil6210/pcie_bus.c:484:12: error: 'wil6210_pm_suspend' defined but not used [-Werror=unused-function]

Using an __maybe_unused is easier here, so I'm replacing all the
other #ifdef in this file as well for consistency.

Fixes: 94162666 ("wil6210: run-time PM when interface down")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

Variable fc is being assigned but never used, so remove it. Cleans
up the clang warning:

warning: Value stored to 'fc' is never read
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>

Simon Horman says:

====================
nfp: flower: add Geneve tunnel support

John Hurley says:

This patchset adds support for offloading the encap and decap of Geneve
tunnels to the NFP. In both cases, specifying well known port 6081 is a
requirement for rule offload.

Geneve firmware support has been recently added, so the patchset includes
the reading of a fw symbol that defines a bitmap of newly supported
features. Geneve will only be offloaded if the fw supports it. The new
symbol is added in fw r5646.

Geneve option fields are not supported as either a match or an action due
there current exclussion from TC flower. Because Geneve (as both a match
and action) behaves the same as other udp tunnels such as VXLAN, generic
functions are created that handle both Geneve and VXLAN. It is anticapated
that these functions will be modified to support options in future
patches.

The removal of an unused variable 'tun_dst_mask' is included as a separate
patch here. This does not affect functionality.

Also included are modifications to the test framework to check that the
new encap and decap features are functioning correctly.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Generate rules for the NFP to encapsulate packets in Geneve tunnels. Move
the vxlan action code to generic udp tunnel actions and use core code for
both vxlan and Geneve.

Only support outputting to well known port 6081. Setting tunnel options
is not supported yet.

Only attempt to offload if the fw supports Geneve.
Signed-off-by: NJohn Hurley <john.hurley@netronome.com>
Reviewed-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NSimon Horman <simon.horman@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Compile Geneve match fields for offloading to the NFP. The addition of
Geneve overflows the 8 bit key_layer field, so apply extended metadata to
the match cmsg allowing up to 32 more key_layer fields.

Rather than adding new Geneve blocks, move the vxlan code to generic ipv4
udp tunnel structs and use these for both vxlan and Geneve.

Matches are only supported when specifically mentioning well known port
6081. Geneve tunnel options are not yet included in the match.

Only offload Geneve if the fw supports it - include check for this.
Signed-off-by: NJohn Hurley <john.hurley@netronome.com>
Reviewed-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NSimon Horman <simon.horman@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Extract the _abi_flower_extra_features symbol from the fw which gives a 64
bit bitmap of new features (on top of the flower base support) that the fw
can offload. Store this bitmap in the priv data associated with each app.
If the symbol does not exist, set the bitmap to 0.
Signed-off-by: NJohn Hurley <john.hurley@netronome.com>
Reviewed-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NSimon Horman <simon.horman@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The tunnel dest IP is required for separate offload to the NFP. It is
already verified that a dest IP must be present and must be an exact
match in the flower rule. Therefore, we can just extract the IP from the
generated offload rule and remove the unused mask variable. The function
is then no longer required to return the IP separately.

Because tun_dst is localised to tunnel matches, move the declaration to
the tunnel if branch.
Signed-off-by: NJohn Hurley <john.hurley@netronome.com>
Reviewed-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: NSimon Horman <simon.horman@netronome.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

RSS table is 4k for T6 and later cards, add check for the
same.
Signed-off-by: NGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

First, the check of &q->ring.queue against NULL is wrong, it
is always false. We should check the value rather than the address.

Secondly, we need the same check in pfifo_fast_reset() too,
as both ->reset() and ->destroy() are called in qdisc_destroy().

Fixes: c5ad119f ("net: sched: pfifo_fast use skb_array")
Reported-by: Nsyzbot <syzkaller@googlegroups.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com>
Acked-by: NJohn Fastabend <john.fastabend@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

In recent tests with new adapters, it was discovered that ARP
packets were not being properly processed. This patch adds
support for ARP packet headers to be passed to backing adapters,
if necessary.
Signed-off-by: NThomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Thomas Falcon says:

====================
ibmvnic: Fix and increase maximum TX/RX queues

This series renames IBMVNIC_MAX_TX_QUEUES to IBMVNIC_MAX_QUEUES since
it is used to allocate both RX and TX queues. The value is also increased
to accommodate newer hardware.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Increase the number of queues allocated to accommodate recent
network adapter inclusions on the IBM vNIC platform.
Signed-off-by: NThomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This value denotes the maximum number of TX queues but is used
to allocate both RX and TX queues.
Signed-off-by: NThomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Merge tag 'wireless-drivers-next-for-davem-2017-12-18' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

The drivers/net/wireless/intel/iwlwifi/pcie/drv.c conflict was
resolved using a diff provided by Kalle in his pull request.

Kalle Valo says:

====================
wireless-drivers-next patches for 4.16

A bigger pull request this time, the most visible change being the new
driver mt76. But there's also Kconfig refactoring in ath9k and ath10k,
work beginning in iwlwifi to have rate scaling in firmware/hardware,
wcn3990 support getting closer in ath10k and lots of smaller changes.

mt76

* a new driver for MT76x2e, a 2x2 PCIe 802.11ac chipset by MediaTek

ath10k

* enable multiqueue support for all hw using mac80211 wake_tx_queue op

* new Kconfig option ATH10K_SPECTRAL to save RAM

* show tx stats on QCA9880

* new qcom,ath10k-calibration-variant DT entry

* WMI layer support for wcn3990

ath9k

* new Kconfig option ATH9K_COMMON_SPECTRAL to save RAM

wcn36xx

* hardware scan offload support

wil6210

* run-time PM support when interface is down

iwlwifi

* initial work for rate-scaling offload

* Support for new FW API version 36

* Rename the temporary hw name A000 to 22000

ssb

* make SSB a menuconfig to ease disabling it all

mwl8k

* enable non-DFS 5G channels 149-165
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>