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Julian Wiedmann 84c91482ee s390/qeth: use netdev_name()
Replace our custom version of netdev_name().

Once we started to allocate the netdev at probe time with
commit d3d1b205e8 ("s390/qeth: allocate netdevice early"), this
stopped working as intended anyway.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 16:22:49 -07:00
Julian Wiedmann 50144f6753 s390/qeth: constify the disciplines
The discipline struct is a fixed group of function pointers.
So declare the L2 and L3 disciplines as constant.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 16:22:49 -07:00
Julian Wiedmann 949bbf4d2d s390/qeth: allow configuration of TX queues for OSA devices
For OSA devices that are _not_ configured in prio-queue mode, give users
the option of selecting the number of active TX queues.
This requires setting up the HW queues with a reasonable default QoS
value in the QIB's PQUE parm area.

As with the other device types, we bring up the device with a minimal
number of TX queues for compatibility reasons.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 16:22:49 -07:00
Julian Wiedmann 72d5e8504e s390/qeth: de-magic the QIB parm area
Use a proper struct, and only program the QIB extensions for devices
where they are supported.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 16:22:49 -07:00
Julian Wiedmann bb5ab54194 s390/qeth: keep track of wanted TX queues
When re-initializing a device, we can hit a situation where
qeth_osa_set_output_queues() detects that it supports more or less
HW TX queues than before. Right now we adjust dev->real_num_tx_queues
from right there, but
1. it's getting more & more complicated to cover all cases, and
2. we can't re-enable the actually expected number of TX queues later
because we lost the needed information.

So keep track of the wanted TX queues (on initial setup, and whenever
its changed via .set_channels), and later use that information when
re-enabling the netdevice.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 16:22:49 -07:00
David S. Miller 14c914fcb5 wireless-drivers-next patches for v5.10
Third set of patches for v5.10. Lots of iwlwifi patches this time, but
 also few patches ath11k and of course smaller changes to other
 drivers.
 
 Major changes:
 
 rtw88
 
 * properly recover from firmware crashes on 8822c
 
 * dump firmware crash log
 
 iwlwifi
 
 * protected Target Wake Time (TWT) implementation
 
 * support disabling 5.8GHz channels via ACPI
 
 * support VHT extended NSS capability
 
 * enable Target Wake Time (TWT) by default
 
 ath11k
 
 * improvements to QCA6390 PCI support to make it more usable
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Merge tag 'wireless-drivers-next-2020-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for v5.10

Third set of patches for v5.10. Lots of iwlwifi patches this time, but
also few patches ath11k and of course smaller changes to other
drivers.

Major changes:

rtw88

* properly recover from firmware crashes on 8822c

* dump firmware crash log

iwlwifi

* protected Target Wake Time (TWT) implementation

* support disabling 5.8GHz channels via ACPI

* support VHT extended NSS capability

* enable Target Wake Time (TWT) by default

ath11k

* improvements to QCA6390 PCI support to make it more usable
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:42:40 -07:00
David S. Miller 0c2a01dc27 Merge branch 'Offload-tc-flower-to-mscc_ocelot-switch-using-VCAP-chains'
Vladimir Oltean says:

====================
Offload tc-flower to mscc_ocelot switch using VCAP chains

The purpose of this patch is to add more comprehensive support for flow
offloading in the mscc_ocelot library and switch drivers.

The design (with chains) is the result of this discussion:
https://lkml.org/lkml/2020/6/2/203

I have tested it on Seville VSC9953 and Felix VSC9959, but it should
also work on Ocelot-1 VSC7514.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:40:30 -07:00
Vladimir Oltean 8cd6b020b6 selftests: ocelot: add some example VCAP IS1, IS2 and ES0 tc offloads
Provide an example script which can be used as a skeleton for offloading
TCAM rules in the Ocelot switches.

Not all actions are demoed, mostly because of difficulty to automate
this from a single board.

For example, policing. We can set up an iperf3 UDP server and client and
measure throughput at destination. But at least with DSA setups, network
namespacing the individual ports is not possible because all switch
ports are handled by the same DSA master. And we cannot assume that the
target platform (an embedded board) has 2 other non-switch generator
ports, we need to work with the generator ports as switch ports (this is
the reason why mausezahn is used, and not IP traffic like ping). When
somebody has an idea how to test policing, that can be added to this
test.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:40:30 -07:00
Vladimir Oltean 16a7a15f4b net: mscc: ocelot: offload redirect action to VCAP IS2
Via the OCELOT_MASK_MODE_REDIRECT flag put in the IS2 action vector, it
is possible to replace previous forwarding decisions with the port mask
installed in this rule.

I have studied Table 54 "MASK_MODE and PORT_MASK Combinations" from the
VSC7514 documentation and it appears to behave sanely when this rule is
installed in either lookup 0 or 1. Namely, a redirect in lookup 1 will
overwrite the forwarding decision taken by any entry in lookup 0.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:40:30 -07:00
Vladimir Oltean f854e6f6f4 net: mscc: ocelot: relax ocelot_exclusive_mac_etype_filter_rules()
The issue which led to the introduction of this check was that MAC_ETYPE
rules, such as filters on dst_mac and src_mac, would only match non-IP
frames. There is a knob in VCAP_S2_CFG which forces all IP frames to be
treated as non-IP, which is what we're currently doing if the user
requested a dst_mac filter, in order to maintain sanity.

But that knob is actually per IS2 lookup. And the good thing with
exposing the lookups to the user via tc chains is that we're now able to
offload MAC_ETYPE keys to one lookup, and IP keys to the other lookup.
So let's do that.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:40:30 -07:00
Vladimir Oltean 226e9cd82a net: mscc: ocelot: only install TCAM entries into a specific lookup and PAG
We were installing TCAM rules with the LOOKUP field as unmasked, meaning
that all entries were matching on all lookups. Now that lookups are
exposed as individual chains, let's make the LOOKUP explicit when
offloading TCAM entries.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:40:30 -07:00
Xiaoliang Yang 2f17c050d8 net: mscc: ocelot: offload egress VLAN rewriting to VCAP ES0
VCAP ES0 is an egress VCAP operating on all outgoing frames.
This patch added ES0 driver to support vlan push action of tc filter.
Usage:

tc filter add dev swp1 egress protocol 802.1Q flower indev swp0 skip_sw \
        vlan_id 1 vlan_prio 1 action vlan push id 2 priority 2

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:40:30 -07:00
Xiaoliang Yang 75944fda1d net: mscc: ocelot: offload ingress skbedit and vlan actions to VCAP IS1
VCAP IS1 is a VCAP module which can filter on the most common L2/L3/L4
Ethernet keys, and modify the results of the basic QoS classification
and VLAN classification based on those flow keys.

There are 3 VCAP IS1 lookups, mapped over chains 10000, 11000 and 12000.
Currently the driver is hardcoded to use IS1_ACTION_TYPE_NORMAL half
keys.

Note that the VLAN_MANGLE has been omitted for now. In hardware, the
VCAP_IS1_ACT_VID_REPLACE_ENA field replaces the classified VLAN
(metadata associated with the frame) and not the VLAN from the header
itself. There are currently some issues which need to be addressed when
operating in standalone, or in bridge with vlan_filtering=0 modes,
because in those cases the switch ports have VLAN awareness disabled,
and changing the classified VLAN to anything other than the pvid causes
the packets to be dropped. Another issue is that on egress, we expect
port tagging to push the classified VLAN, but port tagging is disabled
in the modes mentioned above, so although the classified VLAN is
replaced, it is not visible in the packet transmitted by the switch.

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:40:30 -07:00
Vladimir Oltean 1397a2eb52 net: mscc: ocelot: create TCAM skeleton from tc filter chains
For Ocelot switches, there are 2 ingress pipelines for flow offload
rules: VCAP IS1 (Ingress Classification) and IS2 (Security Enforcement).
IS1 and IS2 support different sets of actions. The pipeline order for a
packet on ingress is:

Basic classification -> VCAP IS1 -> VCAP IS2

Furthermore, IS1 is looked up 3 times, and IS2 is looked up twice (each
TCAM entry can be configured to match only on the first lookup, or only
on the second, or on both etc).

Because the TCAMs are completely independent in hardware, and because of
the fixed pipeline, we actually have very limited options when it comes
to offloading complex rules to them while still maintaining the same
semantics with the software data path.

This patch maps flow offload rules to ingress TCAMs according to a
predefined chain index number. There is going to be a script in
selftests that clarifies the usage model.

There is also an egress TCAM (VCAP ES0, the Egress Rewriter), which is
modeled on top of the default chain 0 of the egress qdisc, because it
doesn't have multiple lookups.

Suggested-by: Allan W. Nielsen <allan.nielsen@microchip.com>
Co-developed-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:40:30 -07:00
Vladimir Oltean 319e4dd11a net: mscc: ocelot: introduce conversion helpers between port and netdev
Since the mscc_ocelot_switch_lib is common between a pure switchdev and
a DSA driver, the procedure of retrieving a net_device for a certain
port index differs, as those are registered by their individual
front-ends.

Up to now that has been dealt with by always passing the port index to
the switch library, but now, we're going to need to work with net_device
pointers from the tc-flower offload, for things like indev, or mirred.
It is not desirable to refactor that, so let's make sure that the flower
offload core has the ability to translate between a net_device and a
port index properly.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:40:30 -07:00
Vladimir Oltean ea9d1f30b1 net: mscc: ocelot: offload multiple tc-flower actions in same rule
At this stage, the tc-flower offload of mscc_ocelot can only delegate
rules to the VCAP IS2 security enforcement block. These rules have, in
hardware, separate bits for policing and for overriding the destination
port mask and/or copying to the CPU. So it makes sense that we attempt
to expose some more of that low-level complexity instead of simply
choosing between a single type of action.

Something similar happens with the VCAP IS1 block, where the same action
can contain enable bits for VLAN classification and for QoS
classification at the same time.

So model the action structure after the hardware description, and let
the high-level ocelot_flower.c construct an action vector from multiple
tc actions.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:40:29 -07:00
David S. Miller 26d0a8edca Another set of changes, this time with:
* lots more S1G band support
  * 6 GHz scanning, finally
  * kernel-doc fixes
  * non-split wiphy dump fixes in nl80211
  * various other small cleanups/features
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Merge tag 'mac80211-next-for-net-next-2020-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Another set of changes, this time with:
 * lots more S1G band support
 * 6 GHz scanning, finally
 * kernel-doc fixes
 * non-split wiphy dump fixes in nl80211
 * various other small cleanups/features
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:33:13 -07:00
Łukasz Stelmach 4f359b653f net/smscx5xx: change to of_get_mac_address() eth_platform_get_mac_address()
Use more generic eth_platform_get_mac_address() which can get a MAC
address from other than DT platform specific sources too. Check if the
obtained address is valid.

Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:21:17 -07:00
Kurt Kanzenbach a3d0ba883c dt-bindings: net: dsa: b53: Add missing reg property to example
The switch has a certain MDIO address and this needs to be specified using the
reg property. Add it to the example.

Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 15:17:35 -07:00
David S. Miller cb307c2d84 Merge branch 'net-dsa-Improve-dsa_untag_bridge_pvid'
Florian Fainelli says:

====================
net: dsa: Improve dsa_untag_bridge_pvid()

This patch series is based on the recent discussions with Vladimir:

https://lore.kernel.org/netdev/20201001030623.343535-1-f.fainelli@gmail.com/

the simplest way forward was to call dsa_untag_bridge_pvid() after
eth_type_trans() has been set which guarantees that skb->protocol is set
to a correct value and this allows us to utilize
__vlan_find_dev_deep_rcu() properly without playing or using the bridge
master as a net_device reference.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 13:36:07 -07:00
Florian Fainelli 3a68844dd2 net: dsa: Utilize __vlan_find_dev_deep_rcu()
Now that we are guaranteed that dsa_untag_bridge_pvid() is called after
eth_type_trans() we can utilize __vlan_find_dev_deep_rcu() which will
take care of finding an 802.1Q upper on top of a bridge master.

A common use case, prior to 12a1526d067 ("net: dsa: untag the bridge
pvid from rx skbs") was to configure a bridge 802.1Q upper like this:

ip link add name br0 type bridge vlan_filtering 0
ip link add link br0 name br0.1 type vlan id 1

in order to pop the default_pvid VLAN tag.

With this change we restore that behavior while still allowing the DSA
receive path to automatically pop the VLAN tag.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 13:36:07 -07:00
Florian Fainelli a348292b63 net: dsa: Obtain VLAN protocol from skb->protocol
Now that dsa_untag_bridge_pvid() is called after eth_type_trans() we are
guaranteed that skb->protocol will be set to a correct value, thus
allowing us to avoid calling vlan_eth_hdr().

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 13:36:07 -07:00
Florian Fainelli 1c5ad5a940 net: dsa: b53: Set untag_bridge_pvid
Indicate to the DSA receive path that we need to untage the bridge PVID,
this allows us to remove the dsa_untag_bridge_pvid() calls from
net/dsa/tag_brcm.c.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 13:36:07 -07:00
Florian Fainelli 1dc0408cdf net: dsa: Call dsa_untag_bridge_pvid() from dsa_switch_rcv()
When a DSA switch driver needs to call dsa_untag_bridge_pvid(), it can
set dsa_switch::untag_brige_pvid to indicate this is necessary.

This is a pre-requisite to making sure that we are always calling
dsa_untag_bridge_pvid() after eth_type_trans() has been called.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 13:36:07 -07:00
David S. Miller c16bcd70a1 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2020-10-02

1) Add a full xfrm compatible layer for 32-bit applications on
   64-bit kernels. From Dmitry Safonov.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 13:16:15 -07:00
Johannes Berg 949ca6b82e netlink: fix policy dump leak
[ Upstream commit a95bc734e6 ]

If userspace doesn't complete the policy dump, we leak the
allocated state. Fix this.

Fixes: d07dcf9aad ("netlink: add infrastructure to expose policies to userspace")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02 13:07:42 -07:00
Thomas Pedersen 75f87eaeac mac80211: avoid processing non-S1G elements on S1G band
In ieee80211_determine_chantype(), the sband->ht_cap was
being processed before S1G Operation element.  Since the
HT capability element should not be present on the S1G
band, avoid processing potential garbage by moving the
call to ieee80211_apply_htcap_overrides() to after the S1G
block.

Also, in case of a missing S1G Operation element, we would
continue trying to process non-S1G elements (and return
with a channel width of 20MHz). Instead, just assume
primary channel is equal to operating and infer the
operating width from the BSS channel, then return.

Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com>
Link: https://lore.kernel.org/r/20201001174748.24520-1-thomas@adapt-ip.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-10-02 12:07:24 +02:00
Johannes Berg ab10c22bc3 nl80211: fix non-split wiphy information
When dumping wiphy information, we try to split the data into
many submessages, but for old userspace we still support the
old mode where this doesn't happen.

However, in this case we were not resetting our state correctly
and dumping multiple messages for each wiphy, which would have
broken such older userspace.

This was broken pretty much immediately afterwards because it
only worked in the original commit where non-split dumps didn't
have any more data than split dumps...

Fixes: fe1abafd94 ("nl80211: re-add channel width and extended capa advertising")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://lore.kernel.org/r/20200928130717.3e6d9c6bada2.Ie0f151a8d0d00a8e1e18f6a8c9244dd02496af67@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-10-02 12:07:09 +02:00
Johannes Berg f8d504caa9 nl80211: reduce non-split wiphy dump size
When wiphy dumps cannot be split, such as in events or with
older userspace that doesn't support it, the size can today
be too big.

Reduce it, by doing two things:

 1) remove data that couldn't have been present before the
    split capability was introduced since it's new, such as
    HE capabilities

 2) as suggested by Martin Willi, remove management frame
    subtypes from the split dumps, as just (1) isn't even
    enough due to other new code capabilities. This is fine
    as old consumers (really just wpa_supplicant) didn't
    check this data before they got support for split dumps.

Reported-by: Martin Willi <martin@strongswan.org>
Suggested-by: Martin Willi <martin@strongswan.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Tested-by: Martin Willi <martin@strongswan.org>
Link: https://lore.kernel.org/r/20200928130655.53bce7873164.I71f06c9a221cd0630429a1a56eeae68a13beca61@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-10-02 12:06:49 +02:00
Armin Wolf 360f898746 lib8390: Use netif_msg_init to initialize msg_enable bits
Use netif_msg_init() to process param settings
and use only the proper initialized value of
ei_local->msg_level for later processing;

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 19:08:46 -07:00
Willy Liu 7a333af6b1 net: phy: realtek: Modify 2.5G PHY name to RTL8226
Realtek single-chip Ethernet PHY solutions can be separated as below:
10M/100Mbps: RTL8201X
1Gbps: RTL8211X
2.5Gbps: RTL8226/RTL8221X
RTL8226 is the first version for realtek that compatible 2.5Gbps single PHY.
Since RTL8226 is single port only, realtek changes its name to RTL8221B from
the second version.
PHY ID for RTL8226 is 0x001cc800 and RTL8226B/RTL8221B is 0x001cc840.

RTL8125 is not a single PHY solution, it integrates PHY/MAC/PCIE bus
controller and embedded memory.

Signed-off-by: Willy Liu <willy.liu@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 18:49:47 -07:00
Jing Xiangfeng f1638a4c79 caif_virtio: Remove redundant initialization of variable err
After commit a8c7687bf2 ("caif_virtio: Check that vringh_config is not
null"), the variable err is being initialized with '-EINVAL' that is
meaningless. So remove it.

Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 18:46:16 -07:00
Ye Bin 000fe2685b net-sysfs: Fix inconsistent of format with argument type in net-sysfs.c
Fix follow warnings:
[net/core/net-sysfs.c:1161]: (warning) %u in format string (no. 1)
	requires 'unsigned int' but the argument type is 'int'.
[net/core/net-sysfs.c:1162]: (warning) %u in format string (no. 1)
	requires 'unsigned int' but the argument type is 'int'.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 18:45:23 -07:00
Ye Bin 32be425b45 pktgen: Fix inconsistent of format with argument type in pktgen.c
Fix follow warnings:
[net/core/pktgen.c:925]: (warning) %u in format string (no. 1)
	requires 'unsigned int' but the argument type is 'signed int'.
[net/core/pktgen.c:942]: (warning) %u in format string (no. 1)
	requires 'unsigned int' but the argument type is 'signed int'.
[net/core/pktgen.c:962]: (warning) %u in format string (no. 1)
	requires 'unsigned int' but the argument type is 'signed int'.
[net/core/pktgen.c:984]: (warning) %u in format string (no. 1)
	requires 'unsigned int' but the argument type is 'signed int'.
[net/core/pktgen.c:1149]: (warning) %d in format string (no. 1)
	requires 'int' but the argument type is 'unsigned int'.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 18:45:23 -07:00
Xie He 8306266c1d drivers/net/wan/hdlc_fr: Correctly handle special skb->protocol values
The fr_hard_header function is used to prepend the header to skbs before
transmission. It is used in 3 situations:
1) When a control packet is generated internally in this driver;
2) When a user sends an skb on an Ethernet-emulating PVC device;
3) When a user sends an skb on a normal PVC device.

These 3 situations need to be handled differently by fr_hard_header.
Different headers should be prepended to the skb in different situations.

Currently fr_hard_header distinguishes these 3 situations using
skb->protocol. For situation 1 and 2, a special skb->protocol value
will be assigned before calling fr_hard_header, so that it can recognize
these 2 situations. All skb->protocol values other than these special ones
are treated by fr_hard_header as situation 3.

However, it is possible that in situation 3, the user sends an skb with
one of the special skb->protocol values. In this case, fr_hard_header
would incorrectly treat it as situation 1 or 2.

This patch tries to solve this issue by using skb->dev instead of
skb->protocol to distinguish between these 3 situations. For situation
1, skb->dev would be NULL; for situation 2, skb->dev->type would be
ARPHRD_ETHER; and for situation 3, skb->dev->type would be ARPHRD_DLCI.

This way fr_hard_header would be able to distinguish these 3 situations
correctly regardless what skb->protocol value the user tries to use in
situation 3.

Cc: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 18:38:18 -07:00
David S. Miller 23a1f682a9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2020-10-01

The following pull-request contains BPF updates for your *net-next* tree.

We've added 90 non-merge commits during the last 8 day(s) which contain
a total of 103 files changed, 7662 insertions(+), 1894 deletions(-).

Note that once bpf(/net) tree gets merged into net-next, there will be a small
merge conflict in tools/lib/bpf/btf.c between commit 1245008122 ("libbpf: Fix
native endian assumption when parsing BTF") from the bpf tree and the commit
3289959b97 ("libbpf: Support BTF loading and raw data output in both endianness")
from the bpf-next tree. Correct resolution would be to stick with bpf-next, it
should look like:

  [...]
        /* check BTF magic */
        if (fread(&magic, 1, sizeof(magic), f) < sizeof(magic)) {
                err = -EIO;
                goto err_out;
        }
        if (magic != BTF_MAGIC && magic != bswap_16(BTF_MAGIC)) {
                /* definitely not a raw BTF */
                err = -EPROTO;
                goto err_out;
        }

        /* get file size */
  [...]

The main changes are:

1) Add bpf_snprintf_btf() and bpf_seq_printf_btf() helpers to support displaying
   BTF-based kernel data structures out of BPF programs, from Alan Maguire.

2) Speed up RCU tasks trace grace periods by a factor of 50 & fix a few race
   conditions exposed by it. It was discussed to take these via BPF and
   networking tree to get better testing exposure, from Paul E. McKenney.

3) Support multi-attach for freplace programs, needed for incremental attachment
   of multiple XDP progs using libxdp dispatcher model, from Toke Høiland-Jørgensen.

4) libbpf support for appending new BTF types at the end of BTF object, allowing
   intrusive changes of prog's BTF (useful for future linking), from Andrii Nakryiko.

5) Several BPF helper improvements e.g. avoid atomic op in cookie generator and add
   a redirect helper into neighboring subsys, from Daniel Borkmann.

6) Allow map updates on sockmaps from bpf_iter context in order to migrate sockmaps
   from one to another, from Lorenz Bauer.

7) Fix 32 bit to 64 bit assignment from latest alu32 bounds tracking which caused
   a verifier issue due to type downgrade to scalar, from John Fastabend.

8) Follow-up on tail-call support in BPF subprogs which optimizes x64 JIT prologue
   and epilogue sections, from Maciej Fijalkowski.

9) Add an option to perf RB map to improve sharing of event entries by avoiding remove-
   on-close behavior. Also, add BPF_PROG_TEST_RUN for raw_tracepoint, from Song Liu.

10) Fix a crash in AF_XDP's socket_release when memory allocation for UMEMs fails,
    from Magnus Karlsson.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 14:29:01 -07:00
David S. Miller 7c89d9d9f9 Merge branch 'net-ravb-Add-support-for-explicit-internal-clock-delay-c
onfiguration'

Geert Uytterhoeven says:

====================
net/ravb: Add support for explicit internal clock delay configuration

Some Renesas EtherAVB variants support internal clock delay
configuration, which can add larger delays than the delays that are
typically supported by the PHY (using an "rgmii-*id" PHY mode, and/or
"[rt]xc-skew-ps" properties).

Historically, the EtherAVB driver configured these delays based on the
"rgmii-*id" PHY mode.  This caused issues with PHY drivers that
implement PHY internal delays properly[1].  Hence a backwards-compatible
workaround was added by masking the PHY mode[2].

This patch series implements the next step of the plan outlined in [3],
and adds proper support for explicit configuration of the MAC internal
clock delays using new "[rt]x-internal-delay-ps" properties.  If none of
these properties is present, the driver falls back to the old handling.

This can be considered the MAC counterpart of commit 9150069bf5
("dt-bindings: net: Add tx and rx internal delays"), which applies to
the PHY.  Note that unlike commit 92252eec91 ("net: phy: Add a
helper to return the index for of the internal delay"), no helpers are
provided to parse the DT properties, as so far there is a single user
only, which supports only zero or a single fixed value.  Of course such
helpers can be added later, when the need arises, or when deemed useful
otherwise.

This series consists of 3 parts:
  1. DT binding updates documenting the new properties, for both the
     generic ethernet-controller and the EtherAVB-specific bindings,
  2. Conversion to json-schema of the Renesas EtherAVB DT bindings.
     Technically, the conversion is independent of all of the above.
     I included it in this series, as it shows how all sanity checks on
     "[rt]x-internal-delay-ps" values are implemented as DT binding
     checks,
  3. EtherAVB driver update implementing support for the new properties.

Given Rob has provided his acks for the DT binding updates, all of this
can be merged through net-next.

Changes compared to v3[4]:
  - Add Reviewed-by,
  - Drop the DT updates, as they will be merged through renesas-devel and
    arm-soc, and have a hard dependency on this series.

Changes compared to v2[5]:
  - Update recently added board DTS files,
  - Add Reviewed-by.

Changes compared to v1[6]:
  - Added "[PATCH 1/7] dt-bindings: net: ethernet-controller: Add
    internal delay properties",
  - Replace "renesas,[rt]xc-delay-ps" by "[rt]x-internal-delay-ps",
  - Incorporated EtherAVB DT binding conversion to json-schema,
  - Add Reviewed-by.

Impacted, tested:
  - Salvator-X(S) with R-Car H3 ES1.0 and ES2.0, M3-W, and M3-N.

Not impacted, tested:
  - Ebisu with R-Car E3.

Impacted, not tested:
  - Salvator-X(S) with other SoC variants,
  - ULCB with R-Car H3/M3-W/M3-N variants,
  - V3MSK and Eagle with R-Car V3M,
  - Draak with R-Car V3H,
  - HiHope RZ/G2[MN] with RZ/G2M or RZ/G2N,
  - Beacon EmbeddedWorks RZ/G2M Development Kit.

To ease testing, I have pushed this series and the DT updates to the
topic/ravb-internal-clock-delays-v4 branch of my renesas-drivers
repository at
git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git.

Thanks for applying!

References:
  [1] Commit bcf3440c6d ("net: phy: micrel: add phy-mode support
      for the KSZ9031 PHY")
  [2] Commit 9b23203c32 ("ravb: Mask PHY mode to avoid inserting
      delays twice").
      https://lore.kernel.org/r/20200529122540.31368-1-geert+renesas@glider.be/
  [3] https://lore.kernel.org/r/CAMuHMdU+MR-2tr3-pH55G0GqPG9HwH3XUd=8HZxprFDMGQeWUw@mail.gmail.com/
  [4] https://lore.kernel.org/linux-devicetree/20200819134344.27813-1-geert+renesas@glider.be/
  [5] https://lore.kernel.org/linux-devicetree/20200706143529.18306-1-geert+renesas@glider.be/
  [6] https://lore.kernel.org/linux-devicetree/20200619191554.24942-1-geert+renesas@glider.be/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 12:53:31 -07:00
Geert Uytterhoeven a6f51f2efa ravb: Add support for explicit internal clock delay configuration
Some EtherAVB variants support internal clock delay configuration, which
can add larger delays than the delays that are typically supported by
the PHY (using an "rgmii-*id" PHY mode, and/or "[rt]xc-skew-ps"
properties).

Historically, the EtherAVB driver configured these delays based on the
"rgmii-*id" PHY mode.  This caused issues with PHY drivers that
implement PHY internal delays properly[1].  Hence a backwards-compatible
workaround was added by masking the PHY mode[2].

Add proper support for explicit configuration of the MAC internal clock
delays using the new "[rt]x-internal-delay-ps" properties.
Fall back to the old handling if none of these properties is present.

[1] Commit bcf3440c6d ("net: phy: micrel: add phy-mode support for
    the KSZ9031 PHY")
[2] Commit 9b23203c32 ("ravb: Mask PHY mode to avoid inserting
    delays twice").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 12:53:31 -07:00
Geert Uytterhoeven ce19a9eb53 ravb: Split delay handling in parsing and applying
Currently, full delay handling is done in both the probe and resume
paths.  Split it in two parts, so the resume path doesn't have to redo
the parsing part over and over again.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 12:53:31 -07:00
Geert Uytterhoeven d7adf63311 dt-bindings: net: renesas,etheravb: Convert to json-schema
Convert the Renesas Ethernet AVB (EthernetAVB-IF) Device Tree binding
documentation to json-schema.

Add missing properties.
Update the example to match reality.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 12:53:30 -07:00
Geert Uytterhoeven 57197b66d0 dt-bindings: net: renesas,ravb: Document internal clock delay properties
Some EtherAVB variants support internal clock delay configuration, which
can add larger delays than the delays that are typically supported by
the PHY (using an "rgmii-*id" PHY mode, and/or "[rt]xc-skew-ps"
properties).

Add properties for configuring the internal MAC delays.
These properties are mandatory, even when specified as zero, to
distinguish between old and new DTBs.

Update the (bogus) example accordingly.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 12:53:30 -07:00
Geert Uytterhoeven 0024bad1f4 dt-bindings: net: ethernet-controller: Add internal delay properties
Internal Receive and Transmit Clock Delays are a common setting for
RGMII capable devices.

While these delays are typically applied by the PHY, some MACs support
configuring internal clock delay settings, too.  Hence add standardized
properties to configure this.

This is the MAC counterpart of commit 9150069bf5 ("dt-bindings:
net: Add tx and rx internal delays"), which applies to the PHY.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-01 12:53:30 -07:00
Kalle Valo 70442ee62d Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git patches for v5.10. Major changes:

ath11k

* improvements to QCA6390 PCI support, adding essential missing
  features: ELF board files, packet log handling to avoid data stalls
  and crash fixes
2020-10-01 22:40:44 +03:00
Loic Poulain fd5ad4d1e9 wcn36xx: Advertise beacon filtering support in bmps
In bmps mode, beacons are filtered, and firmware is in charge
of monitoring the beacons and report changes or loss.

mac80211 must be advertised about such change to prevent it's
internal timer based beacon monitor to report beacon loss.

Fix that by setting/clearing the IEEE80211_VIF_BEACON_FILTER
vif flag on bmps entry/exit.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1592471863-31402-2-git-send-email-loic.poulain@linaro.org
2020-10-01 22:34:04 +03:00
Kalle Valo 404f5de2f9 ath11k: remove unnecessary casts to u32
These casts are not needed. No changes in functionality.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601544890-13450-9-git-send-email-kvalo@codeaurora.org
2020-10-01 22:33:20 +03:00
Carl Huang c83c500b55 ath11k: enable idle power save mode
Host sends wmi command to allow hardware enter idle power
save mode in ath11k_mac_op_start function.

hw parameter idle_ps indicates whether idle power save is supported.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601544890-13450-8-git-send-email-kvalo@codeaurora.org
2020-10-01 22:33:17 +03:00
Carl Huang 9b309970c4 ath11k: start a timer to update HP for CE pipe 4
For QCA6390, Start a timer to update CE pipe 4 ring HP when shadow
register is enabled. Its' to avoid that HP isn't updated to target
register.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601544890-13450-7-git-send-email-kvalo@codeaurora.org
2020-10-01 22:33:15 +03:00
Carl Huang 506e7e9bbf ath11k: start a timer to update REO cmd ring
Start a timer to update REO HP if HP isn't updated to target.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601544890-13450-6-git-send-email-kvalo@codeaurora.org
2020-10-01 22:33:12 +03:00
Carl Huang 8ec5a6ab9c ath11k: start a timer to update TCL HP
The timer is to check if TCL HP isn't updated to target.
The timer will postpone itself if there are TX operations
during the interval, otherwise the timer handler updates
the HP again so the index value in HP register will be
forwarded to target register, and the timer stops afterwards.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601544890-13450-5-git-send-email-kvalo@codeaurora.org
2020-10-01 22:33:09 +03:00
Carl Huang 9df6d8399d ath11k: set WMI pipe credit to 1 for QCA6390
For QCA6390, set wmi credit to 1 to avoid back-to-back write to
shadow register when shadow register is enabled.

Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1

Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601544890-13450-4-git-send-email-kvalo@codeaurora.org
2020-10-01 22:33:07 +03:00