There are 2 Broadcom tags in use, one places the DSA tag before the
Ethernet destination MAC address, and the other before the EtherType.
Nonetheless, both displace the rest of the headers, so this tagger can
use the generic flow dissector procedure which accounts for that.
The ASCII art drawing is a good reference though, so keep it but move it
somewhere else.
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
With the recent mitigations against speculative execution exploits,
indirect function calls are more expensive and it would be good to avoid
them where possible.
In the case of DSA, most switch taggers will shift the EtherType and
next headers by a fixed amount equal to that tag's length in bytes.
So we can use a generic procedure to determine that, without calling
into custom tagger code. However we still leave the flow_dissect method
inside struct dsa_device_ops as an override for the generic function.
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The Marvell 88E6060 uses tag_trailer.c and the KSZ8795, KSZ9477 and
KSZ9893 switches also use tail tags.
Tell that to the DSA core, since this makes a difference for the flow
dissector. Most switches break the parsing of frame headers, but these
ones don't, so no flow dissector adjustment needs to be done for them.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
For all DSA formats that don't use tail tags, it looks like behind the
obscure number crunching they're all doing the same thing: locating the
real EtherType behind the DSA tag. Nonetheless, this is not immediately
obvious, so create a generic helper for those DSA taggers that put the
header before the EtherType.
Another assumption for the generic function is that the DSA tags are of
equal length on RX and on TX. Prior to the previous patch, this was not
true for ocelot and for gswip. The problem was resolved for ocelot, but
for gswip it still remains, so that can't use this helper yet.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no tagger that returns anything other than zero, so just change
the return type appropriately.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are 2 goals that we follow:
- Reduce the header size
- Make the header size equal between RX and TX
The issue that required long prefix on RX was the fact that the ocelot
DSA tag, being put before Ethernet as it is, would overlap with the area
that a DSA master uses for RX filtering (destination MAC address
mainly).
Now that we can ask DSA to put the master in promiscuous mode, in theory
we could remove the prefix altogether and call it a day, but it looks
like we can't. Using no prefix on ingress, some packets (such as ICMP)
would be received, while others (such as PTP) would not be received.
This is because the DSA master we use (enetc) triggers parse errors
("MAC rx frame errors") presumably because it sees Ethernet frames with
a bad length. And indeed, when using no prefix, the EtherType (bytes
12-13 of the frame, bits 96-111) falls over the REW_VAL field from the
extraction header, aka the PTP timestamp.
When turning the short (32-bit) prefix on, the EtherType overlaps with
bits 64-79 of the extraction header, which are a reserved area
transmitted as zero by the switch. The packets are not dropped by the
DSA master with a short prefix. Actually, the frames look like this in
tcpdump (below is a PTP frame, with an extra dsa_8021q tag - dadb 0482 -
added by a downstream sja1105).
89:0c:a9:f2:01:00 > 88:80:00:0a:00:1d, 802.3, length 0: LLC, \
dsap Unknown (0x10) Individual, ssap ProWay NM (0x0e) Response, \
ctrl 0x0004: Information, send seq 2, rcv seq 0, \
Flags [Response], length 78
0x0000: 8880 000a 001d 890c a9f2 0100 0000 100f ................
0x0010: 0400 0000 0180 c200 000e 001f 7b63 0248 ............{c.H
0x0020: dadb 0482 88f7 1202 0036 0000 0000 0000 .........6......
0x0030: 0000 0000 0000 0000 0000 001f 7bff fe63 ............{..c
0x0040: 0248 0001 1f81 0500 0000 0000 0000 0000 .H..............
0x0050: 0000 0000 0000 0000 0000 0000 ............
So the short prefix is our new default: we've shortened our RX frames by
12 octets, increased TX by 4, and headers are now equal between RX and
TX. Note that we still need promiscuous mode for the DSA master to not
drop it.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently PTP is broken when ports are in standalone mode (the tagger
keeps printing this message):
sja1105 spi0.1: Expected meta frame, is 01-80-c2-00-00-0e in the DSA master multicast filter?
Sure, one might say "simply add 01-80-c2-00-00-0e to the master's RX
filter" but things become more complicated because:
- Actually all frames in the 01-80-c2-xx-xx-xx and 01-1b-19-xx-xx-xx
range are trapped to the CPU automatically
- The switch mangles bytes 3 and 4 of the MAC address via the incl_srcpt
("include source port [in the DMAC]") option, which is how source port
and switch id identification is done for link-local traffic on RX. But
this means that an address installed to the RX filter would, at the
end of the day, not correspond to the final address seen by the DSA
master.
Assume RX filtering lists on DSA masters are typically too small to
include all necessary addresses for PTP to work properly on sja1105, and
just request promiscuous mode unconditionally.
Just an example:
Assuming the following addresses are trapped to the CPU:
01-80-c2-00-00-00 to 01-80-c2-00-00-ff
01-1b-19-00-00-00 to 01-1b-19-00-00-ff
These are 512 addresses.
Now let's say this is a board with 3 switches, and 4 ports per switch.
The 512 addresses become 6144 addresses that must be managed by the DSA
master's RX filtering lists.
This may be refined in the future, but for now, it is simply not worth
it to add the additional addresses to the master's RX filter, so simply
request it to become promiscuous as soon as the driver probes.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently DSA assumes that taggers don't mess with the destination MAC
address of the frames on RX. That is not always the case. Some DSA
headers are placed before the Ethernet header (ocelot), and others
simply mangle random bytes from the destination MAC address (sja1105
with its incl_srcpt option).
Currently the DSA master goes to promiscuous mode automatically when the
slave devices go too (such as when enslaved to a bridge), but in
standalone mode this is a problem that needs to be dealt with.
So give drivers the possibility to signal that their tagging protocol
will get randomly dropped otherwise, and let DSA deal with fixing that.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove the ocelot_configure_cpu() function, which was in fact bringing
up 2 ports: the CPU port module, which both switchdev and DSA have, and
the NPI port, which only DSA has.
The (non-Ethernet) CPU port module is at a fixed index in the analyzer,
whereas the NPI port is selected through the "ethernet" property in the
device tree.
Therefore, the function to set up an NPI port is DSA-specific, so we
move it there, simplifying the ocelot switch library a little bit.
Cc: Horatiu Vultur <horatiu.vultur@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: UNGLinuxDriver <UNGLinuxDriver@microchip.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 546c044c96.
Nothing prevents user from sending frames to "external" VxLAN devices.
In fact kernel itself may generate icmp chatter.
This is fine, such frames should be dropped.
The point of the "missing encapsulation" warning was that
frames with missing encap should not make it into vxlan_xmit_one().
And vxlan_xmit() drops them cleanly, so let it just do that.
Without this revert the warning is triggered by the udp_tunnel_nic.sh
test, but the minimal repro is:
$ ip link add vxlan0 type vxlan \
group 239.1.1.1 \
dev lo \
dstport 1234 \
external
$ ip li set dev vxlan0 up
[ 419.165981] vxlan0: Missing encapsulation instructions
[ 419.166551] WARNING: CPU: 0 PID: 1041 at drivers/net/vxlan.c:2889 vxlan_xmit+0x15c0/0x1fc0 [vxlan]
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jacob Keller says:
====================
devlink flash update overwrite mask
This series introduces support for a new attribute to the flash update
command: DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK.
This attribute is a bitfield which allows userspace to specify what set of
subfields to overwrite when performing a flash update for a device.
The intention is to support the ability to control the behavior of
overwriting the configuration and identifying fields in the Intel ice device
flash update process. This is necessary as the firmware layout for the ice
device includes some settings and configuration within the same flash
section as the main firmware binary.
This series, and the accompanying iproute2 series, introduce support for the
attribute. Once applied, the overwrite support can be be invoked via
devlink:
# overwrite settings
devlink dev flash pci/0000:af:00.0 file firmware.bin overwrite settings
# overwrite identifiers and settings
devlink dev flash pci/0000:af:00.0 file firmware.bin overwrite settings overwrite identifiers
To aid in the safe addition of new parameters, first some refactoring is
done to the .flash_update function: its parameters are converted from a
series of function arguments into a structure. This makes it easier to add
the new parameter without changing the signature of the .flash_update
handler in the future. Additionally, a "supported_flash_update_params" field
is added to devlink_ops. This field is similar to the ethtool
"supported_coalesc_params" field. The devlink core will now check that the
DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT bit is set before forwarding the
component attribute. Similarly, the new overwrite attribute will also
require a supported bit.
Doing these refactors will aid in adding any other attributes in the future,
and creates a good pattern for other interfaces to use in the future. By
requiring drivers to opt-in, we reduce the risk of accidentally breaking
drivers when ever we add an additional parameter. We also reduce boiler
plate code in drivers which do not support the parameters.
Changes since v9:
* rebased to current net-next, no other changes
Changes since v7
* resend, hopefully avoiding the SMTP server issues I experienced on Friday
Changes since v6
* Rebased to current net-next to resolve conflicts
* Added changes to the ionic driver that recently merged flash update support
* Fixed the changes for mlxsw to apply to core instead of spectrum.c after
the recent refactor.
* Picked up the review tags from Jakub
Changes since v5
* Fix *all* of the BIT usage to use _BITUL() (thanks Jakub!)
Changes since v4
* Renamed nla_overwrite to nla_overwrite_mask at Jiri's suggestion
* Added "by this device" to the netlink error messages for unsupported
attributes
* Removed use of BIT() in the uapi header
* Fixed the commit message for the netdevsim patch
* Picked up Jakub's reviewed
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Support the recently added DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK
parameter in the ice flash update handler. Convert the overwrite mask
bitfield into the appropriate preservation level used by the firmware
when updating.
Because there is no equivalent preservation level for overwriting only
identifiers, this combination is rejected by the driver as not supported
with an appropriate extended ACK message.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The devlink interface recently gained support for a new "overwrite mask"
parameter that allows specifying how various sub-sections of a flash
component are modified when updating.
Add support for this to netdevsim, to enable easily testing the
interface. Make the allowed overwrite mask values controllable via
a debugfs parameter. This enables testing a flow where the driver
rejects an unsupportable overwrite mask.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sections of device flash may contain settings or device identifying
information. When performing a flash update, it is generally expected
that these settings and identifiers are not overwritten.
However, it may sometimes be useful to allow overwriting these fields
when performing a flash update. Some examples include, 1) customizing
the initial device config on first programming, such as overwriting
default device identifying information, or 2) reverting a device
configuration to known good state provided in the new firmware image, or
3) in case it is suspected that current firmware logic for managing the
preservation of fields during an update is broken.
Although some devices are able to completely separate these types of
settings and fields into separate components, this is not true for all
hardware.
To support controlling this behavior, a new
DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK is defined. This is an
nla_bitfield32 which will define what subset of fields in a component
should be overwritten during an update.
If no bits are specified, or of the overwrite mask is not provided, then
an update should not overwrite anything, and should maintain the
settings and identifiers as they are in the previous image.
If the overwrite mask has the DEVLINK_FLASH_OVERWRITE_SETTINGS bit set,
then the device should be configured to overwrite any of the settings in
the requested component with settings found in the provided image.
Similarly, if the DEVLINK_FLASH_OVERWRITE_IDENTIFIERS bit is set, the
device should be configured to overwrite any device identifiers in the
requested component with the identifiers from the image.
Multiple overwrite modes may be combined to indicate that a combination
of the set of fields that should be overwritten.
Drivers which support the new overwrite mask must set the
DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK in the
supported_flash_update_params field of their devlink_ops.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The devlink core recently gained support for checking whether the driver
supports a flash_update parameter, via `supported_flash_update_params`.
However, parameters are specified as function arguments. Adding a new
parameter still requires modifying the signature of the .flash_update
callback in all drivers.
Convert the .flash_update function to take a new `struct
devlink_flash_update_params` instead. By using this structure, and the
`supported_flash_update_params` bit field, a new parameter to
flash_update can be added without requiring modification to existing
drivers.
As before, all parameters except file_name will require driver opt-in.
Because file_name is a necessary field to for the flash_update to make
sense, no "SUPPORTED" bitflag is provided and it is always considered
valid. All future additional parameters will require a new bit in the
supported_flash_update_params bitfield.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Michael Chan <michael.chan@broadcom.com>
Cc: Bin Luo <luobin9@huawei.com>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Ido Schimmel <idosch@mellanox.com>
Cc: Danielle Ratson <danieller@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When implementing .flash_update, drivers which do not support
per-component update are manually checking the component parameter to
verify that it is NULL. Without this check, the driver might accept an
update request with a component specified even though it will not honor
such a request.
Instead of having each driver check this, move the logic into
net/core/devlink.c, and use a new `supported_flash_update_params` field
in the devlink_ops. Drivers which will support per-component update must
now specify this by setting DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT in
the supported_flash_update_params in their devlink_ops.
This helps ensure that drivers do not forget to check for a NULL
component if they do not support per-component update. This also enables
a slightly better error message by enabling the core stack to set the
netlink bad attribute message to indicate precisely the unsupported
attribute in the message.
Going forward, any new additional parameter to flash update will require
a bit in the supported_flash_update_params bitfield.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Michael Chan <michael.chan@broadcom.com>
Cc: Bin Luo <luobin9@huawei.com>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Ido Schimmel <idosch@mellanox.com>
Cc: Danielle Ratson <danieller@mellanox.com>
Cc: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yuchung Cheng says:
====================
simplify TCP loss marking code
The TCP loss marking is implemented by a set of intertwined
subroutines. TCP has several loss detection algorithms
(RACK, RFC6675/FACK, NewReno, etc) each calls a subset of
these routines to mark a packet lost. This has led to
various bugs (and fixes and fixes of fixes).
This patch set is to consolidate the loss marking code so
all detection algorithms call the same routine tcp_mark_skb_lost().
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
tcp_skb_mark_lost is used by RFC6675-SACK and can easily be replaced
with the new tcp_mark_skb_lost handler.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch consolidates and simplifes the loss marking logic used
by a few loss detections (RACK, RFC6675, NewReno). Previously
each detection uses a subset of several intertwined subroutines.
This unncessary complexity has led to bugs (and fixes of bug fixes).
tcp_mark_skb_lost now is the single one routine to mark a packet loss
when a loss detection caller deems an skb ist lost:
1. rewind tp->retransmit_hint_skb if skb has lower sequence or
all lost ones have been retransmitted.
2. book-keeping: adjust flags and counts depending on if skb was
retransmitted or not.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A pure refactor to move tcp_mark_skb_lost to tcp_input.c to prepare
for the later loss marking consolidation.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
tcp_simple_retransmit() used for path MTU discovery may not adjust
the retransmit hint properly by deducting retrans_out before checking
it to adjust the hint. This patch fixes this by a correct routine
tcp_mark_skb_lost() already used by the RACK loss detection.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is a null-check for _pcs_, but it is being dereferenced
prior to this null-check. So, if _pcs_ can actually be null,
then there is a potential null pointer dereference that should
be fixed by null-checking _pcs_ before being dereferenced.
Addresses-Coverity-ID: 1497159 ("Dereference before null check")
Fixes: 94ae899b20 ("dpaa2-mac: add PCS support through the Lynx module")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ioana Ciornei says:
====================
dpaa2-eth: small updates
This patch set is just a collection of small updates to the dpaa2-eth
driver.
First, we only need to check the availability of the DTS child node, not
both child and parent node. Then remove a call to
dpaa2_eth_link_state_update() which is now just a leftover and it's not
useful in how are things working now in the PHY integration. Lastly,
modify how the driver is behaving when the the flow steering table is
used between all the traffic classes.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When SHARED_FS is enabled on a DPNI object the flow steering tables are
shared between all the traffic classes. Modify the driver so that we
only add a new flow steering entry on the TC#0 when this new option is
enabled.
Signed-off-by: Ionut-robert Aron <ionut-robert.aron@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The call to dpaa2_eth_link_state_update() is a leftover from the time
when on DPAA2 platforms the PHYs were started at boot time so when an
ifconfig was issued on the associated interface, the link status needed
to be checked directly from the ndo_open() callback.
This is not needed anymore since we are now properly integrated with the
PHY layer thus a link interrupt will come directly from the PHY
eventually without the need to call the sync function.
Fix this up by removing the call to dpaa2_eth_link_state_update().
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no need to check if both the MDIO controller node and its
child node, the PCS device, are available since there is no chance that
the child node would be enabled when the parent it's not.
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fabian Frederick says:
====================
vxlan: clean-up
This small patchet does some clean-up on vxlan.
Second version removes VXLAN_NL2FLAG macro relevant patches as suggested by Michal and David
I hope to have some feedback/ACK from vxlan developers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit aab8cc3630
("vxlan: add support for underlay in non-default VRF")
vxlan_find_sock() also checks if socket is assigned to the right
level 3 master device when lower device is not in the default VRF.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
rtnl_configure_link is always checked if < 0 for error code.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
vxlan_xmit_one() was only called from vxlan_xmit() without rdst and
info was already tested. Emit warning in that function instead
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
small optimization around checking as it's being done in all
receptions
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
call vxlan_remcsum() before md filling in vxlan_rcv()
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
We should remove a group from the sg_port hash only if it's an S,G
entry. This makes it correct and more symmetric with group add. Also
since *,G groups are not added to that hash we can hide a bug.
Fixes: 085b53c8be ("net: bridge: mcast: add sg_port rhashtable")
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add option in plat_stmmacenet_data struct to enable VLAN Filter Fail
Queuing. This option allows packets that fail VLAN filter to be routed
to a specific Rx queue when Receive All is also set.
When this option is enabled:
- Enable VFFQ only when entering promiscuous mode, because Receive All
will pass up all rx packets that failed address filtering (similar to
promiscuous mode).
- VLAN-promiscuous mode is never entered to allow rx packet to fail VLAN
filters and get routed to selected VFFQ Rx queue.
Reviewed-by: Voon Weifeng <weifeng.voon@intel.com>
Reviewed-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Chuah, Kim Tatt <kim.tatt.chuah@intel.com>
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean says:
====================
Devlink regions for SJA1105 DSA driver
This series exposes the SJA1105 static config as a devlink region. This
can be used for debugging, for example with the sja1105_dump user space
program that I have derived from Andrew Lunn's mv88e6xxx_dump:
https://github.com/vladimiroltean/mv88e6xxx_dump/tree/sja1105
Changes in v2:
- Tear down devlink params on initialization failure.
- Add driver identification through devlink.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Return the driver name and ASIC ID so that generic user space
application are able to know they're looking at sja1105 devlink regions
when pretty-printing them.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As explained in Documentation/networking/dsa/sja1105.rst, this switch
has a static config held in the driver's memory and re-uploaded from
time to time into the device (after any major change).
The format of this static config is in fact described in UM10944.pdf and
it contains all the switch's settings (it also contains device ID, table
CRCs, etc, just like in the manual). So it is a useful and universal
devlink region to expose to user space, for debugging purposes.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We'll have more devlink code soon. Group it together in a separate
translation object.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jesse Brandeburg says:
====================
make drivers/net/ethernet W=1 clean
The Goal: move to W=1 being default for drivers/net/ethernet, and
then use automation to catch more code issues (warnings) being
introduced.
The status: Getting much closer but not quite done for all
architectures.
After applying the patches below, the drivers/net/ethernet
directory can be built as modules with W=1 with no warnings (so
far on x64_64 arch only!). As Jakub pointed out, there is much
more work to do to clean up C=1, but that will be another series
of changes.
This series removes 1,247 warnings and hopefully allows the
ethernet directory to move forward from here without more
warnings being added. There is only one objtool warning now.
This version drops one of the Intel patches, as I couldn't
reproduce the original issue to document the warning.
Some of these patches are already sent and tested on Intel Wired
Lan, but the rest of the series titled drivers/net/ethernet
affects other drivers. The changes are all pretty
straightforward.
====================
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Saeed Mahameed <saeed@kernel.org>
As part of the W=1 cleanups for ethernet, a million [*] driver
comments had to be cleaned up to get the W=1 compilation to
succeed. This change finally makes the drivers/net/ethernet tree
compile with W=1 set on the command line. NOTE: The kernel uses
kdoc style (see Documentation/process/kernel-doc.rst) when
documenting code, not doxygen or other styles.
After this patch the x86_64 build has no warnings from W=1, however
scripts/kernel-doc says there are 1545 more warnings in source files, that
I need to develop a script to fix in a followup patch.
The errors fixed here are all kdoc of a few classes, with a few outliers:
In file included from drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c:10:
drivers/net/ethernet/qlogic/netxen/netxen_nic.h:1193:18: warning: ‘FW_DUMP_LEVELS’ defined but not used [-Wunused-const-variable=]
1193 | static const u32 FW_DUMP_LEVELS[] = { 0x3, 0x7, 0xf, 0x1f, 0x3f, 0x7f, 0xff };
| ^~~~~~~~~~~~~~
... repeats 4 times...
drivers/net/ethernet/sun/cassini.c:2084:24: warning: suggest braces around empty body in an ‘else’ statement [-Wempty-body]
2084 | RX_USED_ADD(page, i);
drivers/net/ethernet/natsemi/ns83820.c: In function ‘phy_intr’:
drivers/net/ethernet/natsemi/ns83820.c:603:6: warning: variable ‘tbisr’ set but not used [-Wunused-but-set-variable]
603 | u32 tbisr, tanar, tanlpar;
| ^~~~~
drivers/net/ethernet/natsemi/ns83820.c: In function ‘ns83820_get_link_ksettings’:
drivers/net/ethernet/natsemi/ns83820.c:1207:11: warning: variable ‘tanar’ set but not used [-Wunused-but-set-variable]
1207 | u32 cfg, tanar, tbicr;
| ^~~~~
drivers/net/ethernet/packetengines/yellowfin.c:1063:18: warning: variable ‘yf_size’ set but not used [-Wunused-but-set-variable]
1063 | int data_size, yf_size;
| ^~~~~~~
Normal kdoc fixes:
warning: Function parameter or member 'x' not described in 'y'
warning: Excess function parameter 'x' description in 'y'
warning: Cannot understand <string> on line <NNN> - I thought it was a doc line
[*] - ok it wasn't quite a million, but it felt like it.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
kernel-doc script as used by W=1, is confused by the macro
usage inside the header describing the efx_ptp_data struct.
drivers/net/ethernet/sfc/ptp.c:345: warning: Function parameter or member 'MC_CMD_PTP_IN_TRANSMIT_LENMAX' not described in 'efx_ptp_data'
After some discussion on the list, break this patch out to
a separate one, and fix the issue through a creative
macro declaration.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As part of the W=1 series for ethernet, these drivers were
discovered to be using kdoc style comments but were not actually
doing kdoc. The kernel uses kdoc style when documenting code, not
doxygen or other styles.
Fixed Warnings:
drivers/net/ethernet/amazon/ena/ena_com.c:613: warning: Function parameter or member 'ena_dev' not described in 'ena_com_set_llq'
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c:1540: warning: Cannot understand * @brief Set VLAN filter table
drivers/net/ethernet/xilinx/ll_temac_main.c:114: warning: Function parameter or member 'lp' not described in 'temac_indirect_busywait'
drivers/net/ethernet/xilinx/ll_temac_main.c:129: warning: Function parameter or member 'lp' not described in 'temac_indirect_in32'
drivers/net/ethernet/xilinx/ll_temac_main.c:129: warning: Function parameter or member 'reg' not described in 'temac_indirect_in32'
drivers/net/ethernet/xilinx/ll_temac_main.c:147: warning: Function parameter or member 'lp' not described in 'temac_indirect_in32_locked'
drivers/net/ethernet/xilinx/ll_temac_main.c:147: warning: Function parameter or member 'reg' not described in 'temac_indirect_in32_locked'
drivers/net/ethernet/xilinx/ll_temac_main.c:172: warning: Function parameter or member 'lp' not described in 'temac_indirect_out32'
drivers/net/ethernet/xilinx/ll_temac_main.c:172: warning: Function parameter or member 'reg' not described in 'temac_indirect_out32'
drivers/net/ethernet/xilinx/ll_temac_main.c:172: warning: Function parameter or member 'value' not described in 'temac_indirect_out32'
drivers/net/ethernet/xilinx/ll_temac_main.c:188: warning: Function parameter or member 'lp' not described in 'temac_indirect_out32_locked'
drivers/net/ethernet/xilinx/ll_temac_main.c:188: warning: Function parameter or member 'reg' not described in 'temac_indirect_out32_locked'
drivers/net/ethernet/xilinx/ll_temac_main.c:188: warning: Function parameter or member 'value' not described in 'temac_indirect_out32_locked'
drivers/net/ethernet/xilinx/ll_temac_main.c:212: warning: Function parameter or member 'lp' not described in 'temac_dma_in32_be'
drivers/net/ethernet/xilinx/ll_temac_main.c:212: warning: Function parameter or member 'reg' not described in 'temac_dma_in32_be'
drivers/net/ethernet/xilinx/ll_temac_main.c:228: warning: Function parameter or member 'lp' not described in 'temac_dma_out32_be'
drivers/net/ethernet/xilinx/ll_temac_main.c:228: warning: Function parameter or member 'reg' not described in 'temac_dma_out32_be'
drivers/net/ethernet/xilinx/ll_temac_main.c:228: warning: Function parameter or member 'value' not described in 'temac_dma_out32_be'
drivers/net/ethernet/xilinx/ll_temac_main.c:247: warning: Function parameter or member 'lp' not described in 'temac_dma_dcr_in'
drivers/net/ethernet/xilinx/ll_temac_main.c:247: warning: Function parameter or member 'reg' not described in 'temac_dma_dcr_in'
drivers/net/ethernet/xilinx/ll_temac_main.c:255: warning: Function parameter or member 'lp' not described in 'temac_dma_dcr_out'
drivers/net/ethernet/xilinx/ll_temac_main.c:255: warning: Function parameter or member 'reg' not described in 'temac_dma_dcr_out'
drivers/net/ethernet/xilinx/ll_temac_main.c:255: warning: Function parameter or member 'value' not described in 'temac_dma_dcr_out'
drivers/net/ethernet/xilinx/ll_temac_main.c:265: warning: Function parameter or member 'lp' not described in 'temac_dcr_setup'
drivers/net/ethernet/xilinx/ll_temac_main.c:265: warning: Function parameter or member 'op' not described in 'temac_dcr_setup'
drivers/net/ethernet/xilinx/ll_temac_main.c:265: warning: Function parameter or member 'np' not described in 'temac_dcr_setup'
drivers/net/ethernet/xilinx/ll_temac_main.c:300: warning: Function parameter or member 'ndev' not described in 'temac_dma_bd_release'
drivers/net/ethernet/xilinx/ll_temac_main.c:330: warning: Function parameter or member 'ndev' not described in 'temac_dma_bd_init'
drivers/net/ethernet/xilinx/ll_temac_main.c:600: warning: Function parameter or member 'ndev' not described in 'temac_setoptions'
drivers/net/ethernet/xilinx/ll_temac_main.c:600: warning: Function parameter or member 'options' not described in 'temac_setoptions'
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A couple of drivers had a "generic documentation" section that
would trigger a "can't understand" message from W=1 compiles.
Fix by using correct DOC: tags in the generic sections.
Fixed Warnings:
drivers/net/ethernet/arc/emac_arc.c:4: info: Scanning doc for c
drivers/net/ethernet/cadence/macb_pci.c:3: warning: missing initial short description on line:
* Cadence GEM PCI wrapper.
drivers/net/ethernet/cadence/macb_pci.c:3: info: Scanning doc for Cadence
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
While fixing the W=1 builds, this warning came up because the
developers used a very tricky way to get structures initialized
to a non-zero value, but this causes GCC to warn about an
override. In this case the override was intentional, so just
disable the warning for this code with a kernel macro that results
in disabling the warning for compiles on GCC versions after 8.
It is not appropriate to change the struct to initialize all the
values as it will just add a lot more code for no value. The code
is completely correct as is, we just want to acknowledge that
this code could generate a warning and we're ok with that.
NOTE: the __diag_ignore macro currently only accepts a second
argument of 8 (version 80000), it's either use this one or
open code the pragma.
Fixed Warnings example (all the same):
drivers/net/ethernet/renesas/sh_eth.c:51:12: warning: initialized field overwritten [-Woverride-init]
drivers/net/ethernet/renesas/sh_eth.c:52:12: warning: initialized field overwritten [-Woverride-init]
drivers/net/ethernet/renesas/sh_eth.c:53:13: warning: initialized field overwritten [-Woverride-init]
+ 256 more...
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The W=1 builds showed a few files exporting functions
(non-static) that were not prototyped. What actually happened is
that there were prototypes, but the include file was forgotten in
the implementation file.
Add the include file and remove the warnings.
Fixed Warnings:
drivers/net/ethernet/cavium/liquidio/cn68xx_device.c:124:5: warning: no previous prototype for ‘lio_setup_cn68xx_octeon_device’ [-Wmissing-prototypes]
drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:159:1: warning: no previous prototype for ‘octeon_pci_read_core_mem’ [-Wmissing-prototypes]
drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:168:1: warning: no previous prototype for ‘octeon_pci_write_core_mem’ [-Wmissing-prototypes]
drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:176:5: warning: no previous prototype for ‘octeon_read_device_mem64’ [-Wmissing-prototypes]
drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:185:5: warning: no previous prototype for ‘octeon_read_device_mem32’ [-Wmissing-prototypes]
drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:194:6: warning: no previous prototype for ‘octeon_write_device_mem32’ [-Wmissing-prototypes]
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c:453:6: warning: no previous prototype for ‘hclge_dcb_ops_set’ [-Wmissing-prototypes]
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As part of the W=1 compliation series, these lines all created
warnings about unused variables that were assigned a value. Most
of them are from register reads, but some are just picking up
a return value from a function and never doing anything with it.
Fixed warnings:
.../ethernet/brocade/bna/bnad.c:3280:6: warning: variable ‘rx_count’ set but not used [-Wunused-but-set-variable]
.../ethernet/brocade/bna/bnad.c:3280:6: warning: variable ‘rx_count’ set but not used [-Wunused-but-set-variable]
.../ethernet/cortina/gemini.c:512:6: warning: variable ‘val’ set but not used [-Wunused-but-set-variable]
.../ethernet/cortina/gemini.c:2110:21: warning: variable ‘config0’ set but not used [-Wunused-but-set-variable]
.../ethernet/cavium/liquidio/octeon_device.c:1327:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable]
.../ethernet/cavium/liquidio/octeon_device.c:1358:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable]
.../ethernet/dec/tulip/media.c:322:8: warning: variable ‘setup’ set but not used [-Wunused-but-set-variable]
.../ethernet/dec/tulip/de4x5.c:4928:13: warning: variable ‘r3’ set but not used [-Wunused-but-set-variable]
.../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable]
.../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable]
.../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable]
.../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable]
.../ethernet/micrel/ksz884x.c:4981:6: warning: variable ‘rx_status’ set but not used [-Wunused-but-set-variable]
.../ethernet/micrel/ksz884x.c:6510:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable]
.../ethernet/micrel/ksz884x.c:6087: warning: cannot understand function prototype: 'struct hw_regs '
.../ethernet/microchip/lan743x_main.c:161:6: warning: variable ‘int_en’ set but not used [-Wunused-but-set-variable]
.../ethernet/microchip/lan743x_main.c:1702:6: warning: variable ‘int_sts’ set but not used [-Wunused-but-set-variable]
.../ethernet/microchip/lan743x_main.c:3041:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
.../ethernet/natsemi/ns83820.c:603:6: warning: variable ‘tbisr’ set but not used [-Wunused-but-set-variable]
.../ethernet/natsemi/ns83820.c:1207:11: warning: variable ‘tanar’ set but not used [-Wunused-but-set-variable]
.../ethernet/marvell/mvneta.c:754:6: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable]
.../ethernet/neterion/vxge/vxge-traffic.c:33:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable]
.../ethernet/neterion/vxge/vxge-traffic.c:160:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable]
.../ethernet/neterion/vxge/vxge-traffic.c:490:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable]
.../ethernet/neterion/vxge/vxge-traffic.c:2378:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable]
.../ethernet/packetengines/yellowfin.c:1063:18: warning: variable ‘yf_size’ set but not used [-Wunused-but-set-variable]
.../ethernet/realtek/8139cp.c:1242:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable]
.../ethernet/mellanox/mlx4/en_tx.c:858:6: warning: variable ‘ring_cons’ set but not used [-Wunused-but-set-variable]
.../ethernet/sis/sis900.c:792:6: warning: variable ‘status’ set but not used [-Wunused-but-set-variable]
.../ethernet/sfc/falcon/farch.c:878:11: warning: variable ‘rx_ev_pkt_type’ set but not used [-Wunused-but-set-variable]
.../ethernet/sfc/falcon/farch.c:877:23: warning: variable ‘rx_ev_mcast_pkt’ set but not used [-Wunused-but-set-variable]
.../ethernet/sfc/falcon/farch.c:877:7: warning: variable ‘rx_ev_hdr_type’ set but not used [-Wunused-but-set-variable]
.../ethernet/sfc/falcon/farch.c:876:7: warning: variable ‘rx_ev_other_err’ set but not used [-Wunused-but-set-variable]
.../ethernet/sfc/falcon/farch.c:1646:21: warning: variable ‘buftbl_min’ set but not used [-Wunused-but-set-variable]
.../ethernet/sfc/falcon/farch.c:2535:32: warning: variable ‘spec’ set but not used [-Wunused-but-set-variable]
.../ethernet/via/via-velocity.c:880:6: warning: variable ‘curr_status’ set but not used [-Wunused-but-set-variable]
.../ethernet/ti/tlan.c:656:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable]
.../ethernet/ti/davinci_emac.c:1230:6: warning: variable ‘num_tx_pkts’ set but not used [-Wunused-but-set-variable]
.../ethernet/synopsys/dwc-xlgmac-common.c:516:8: warning: variable ‘str’ set but not used [-Wunused-but-set-variable]
.../ethernet/ti/cpsw_new.c:1662:22: warning: variable ‘priv’ set but not used [-Wunused-but-set-variable]
The register reads should be OK, because the current
implementation of readl and friends will always execute even
without an lvalue.
When it makes sense, just remove the lvalue assignment and the
local. Other times, just remove the offending code, and
occasionally, just mark the variable as maybe unused since it
could be used in an ifdef or debug scenario.
Only compile tested with W=1.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove variables that were storing a return value from a register
read or other read, where the return value wasn't used. Those
conversions to remove the lvalue of the assignment should be safe
because the readl memory mapped reads are marked volatile and
should not be optimized out without an lvalue (I suspect a very
long time ago this wasn't guaranteed as it is today).
These changes are part of a separate patch to make it easier to review.
Warnings Fixed:
.../intel/e100.c:2596:9: warning: variable ‘err’ set but not used [-Wunused-but-set-variable]
.../intel/ixgb/ixgb_hw.c:101:6: warning: variable ‘icr_reg’ set but not used [-Wunused-but-set-variable]
.../intel/ixgb/ixgb_hw.c:277:6: warning: variable ‘ctrl_reg’ set but not used [-Wunused-but-set-variable]
.../intel/ixgb/ixgb_hw.c:952:15: warning: variable ‘temp_reg’ set but not used [-Wunused-but-set-variable]
.../intel/ixgb/ixgb_hw.c:1164:7: warning: variable ‘mdio_reg’ set but not used [-Wunused-but-set-variable]
.../intel/e1000/e1000_hw.c:132:6: warning: variable ‘ret_val’ set but not used [-Wunused-but-set-variable]
.../intel/e1000/e1000_hw.c:380:6: warning: variable ‘icr’ set but not used [-Wunused-but-set-variable]
.../intel/e1000/e1000_hw.c:2378:6: warning: variable ‘signal’ set but not used [-Wunused-but-set-variable]
.../intel/e1000/e1000_hw.c:2374:6: warning: variable ‘ctrl’ set but not used [-Wunused-but-set-variable]
.../intel/e1000/e1000_hw.c:2373:6: warning: variable ‘rxcw’ set but not used [-Wunused-but-set-variable]
.../intel/e1000/e1000_hw.c:4678:15: warning: variable ‘temp’ set but not used [-Wunused-but-set-variable]
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This takes care of all of the trivial W=1 fixes in the Intel
Ethernet drivers, which allows developers and maintainers to
build more of the networking tree with more complete warning
checks.
There are three classes of kdoc warnings fixed:
- cannot understand function prototype: 'x'
- Excess function parameter 'x' description in 'y'
- Function parameter or member 'x' not described in 'y'
All of the changes were trivial comment updates on
function headers.
Inspired by Lee Jones' series of wireless work to do the same.
Compile tested only, and passes simple test of
$ git ls-files *.[ch] | egrep drivers/net/ethernet/intel | \
xargs scripts/kernel-doc -none
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
While we should always make sure that we specify a valid VLAN protocol
to vlan_proto_idx(), killing the machine when an invalid value is
specified is too harsh and not helpful for debugging. All callers are
capable of dealing with an error returned by vlan_proto_idx() so check
the index value and propagate it accordingly.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Second set of patches for v5.10. Biggest change here is wcn3680
support to wcn36xx driver, otherwise smaller features. And naturally
the usual fixes and cleanups.
Major changes:
brcmfmac
* support 4-way handshake offloading for WPA/WPA2-PSK in AP mode
* support SAE authentication offload in AP mode
mt76
* mt7663 runtime power management improvements
* mt7915 A-MSDU offload
wcn36xx
* add support wcn3680 Wi-Fi 5 devices
ath11k
* spectral scan support for ipq6018
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Merge tag 'wireless-drivers-next-2020-09-25' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
wireless-drivers-next patches for v5.10
Second set of patches for v5.10. Biggest change here is wcn3680
support to wcn36xx driver, otherwise smaller features. And naturally
the usual fixes and cleanups.
Major changes:
brcmfmac
* support 4-way handshake offloading for WPA/WPA2-PSK in AP mode
* support SAE authentication offload in AP mode
mt76
* mt7663 runtime power management improvements
* mt7915 A-MSDU offload
wcn36xx
* add support wcn3680 Wi-Fi 5 devices
ath11k
* spectral scan support for ipq6018
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
