If the device is MMIO-based, we must ensure all TxD/TxP on the host
memory all being consumed by the device prior to safely switching to
fw_own state.

Fixes: ec7bd7b4 ("mt76: connac: check wake refcount in mcu_fw_pmctrl")
Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Keep Rx path classifier the mt7921 firmware prefers to allow frames pass
through MCU.

Fixes: 5c14a5f9 ("mt76: mt7921: introduce mt7921e support")
Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

WiFi subsytem reset should control MT_WFSYS_SW_RST_B and then poll the
same register until the bit WFSYS_SW_INIT_DONE bit is set.

Fixes: 0c1ce988 ("mt76: mt7921: add wifi reset support")
Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

As already done for mt7615 and mt7915, enable rx header translation
offload for mt7663 in order to reduce cpu load in the rx path.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

As already done for mt7915 and mt7921, free registered irq line if
mt7615_mmio_probe routine fails
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

BIT(0) in MT_EE_NIC_CONF_1 is use to notify the driver if the radio RF
switch is controlled through a gpio. Use dev_debug instead of dev_err
to log this info.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Fix theoretical NULL pointer dereference in mt7615_tx_prepare_skb and
mt7663_usb_sdio_tx_prepare_skb routines. This issue has been identified
by code analysis.

Fixes: 6aa4ed79 ("mt76: mt7615: implement DMA support for MT7622")
Fixes: 4bb586bc ("mt76: mt7663u: sync probe sampling with rate configuration")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Even if this is not a real issue since mt76_tx is never run with wcid set
to NULL, fix a theoretical NULL pointer dereference in mt76_tx routine

Fixes: db9f11d3 ("mt76: store wcid tx rate info in one u32 reduce locking")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Add runtime configuration for bitrate mask. This update firmware rate
control to add a boundary on top of table to limit the rate selection
for each peer, so when user set bitrates vht-mcs-5 1:9, which actually
means nss = 1 mcs = 0~9. This only applies to data frames as for other
mgmt, mcast, bcast still use legacy rates as it is.

Note that driver does not support GI configuration.

Example:
iw dev wlan0 set bitrates vht-mcs-5 1:9 he-mcs-5 2:7
iw dev wlan0 set bitrates legacy-5 6 he-mcs-5 2:0-11
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Remove obsoleted codes. This is the preparation for .set_bitrate_mask().
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

As already done for mt7615 and mt7915, enable hw rx checksum offload.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

As already done for mt7615 and mt7915, enable rx header translation
offload for mt7921 in order to reduce cpu load in the rx path.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Add missing configuration parameters in mt76_connac_mcu_wtbl_hdr_trans_tlv
routine
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Enable hw rx-amsdu de-aggregation support available in 7921 devices.
This is a preliminary patch to enable rx checksum offload.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

"idx" needs to be signed for the error handling to work.

Fixes: 495184ac ("mt76: mt7915: add support for applying pre-calibration data")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Correct the bitfield which indicates TSSI on/off for MT7915D NIC.
Signed-off-by: Evelyn Tsai <evelyn.tsai@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Move mt76_rates array in mt76 module and remove duplicated code since it
is shared by all drivers
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

For now, this only reports ACK status
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Instead of attaching the last reported rate to tx packets, use
ieee80211_tx_status_ext to immediately pass the rate to mac80211 after
receiving it from the firmware.
Preparation for implementing full tx status reporting
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Fixes AQL issues on full queues, especially with 802.3 encap offload
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Use ieee80211_tx_status_ext instead of ieee80211_free_skb and
ieee80211_tx_status. This makes it compatible with 802.3 encap offload
and improves performance by removing a redundant sta lookup
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Avoid accidentally mapping them to WCID 0 on completion
Signed-off-by: Felix Fietkau <nbd@nbd.name>

It overwrites mt76_tx_cb data in the skb
Signed-off-by: Felix Fietkau <nbd@nbd.name>

It overwrites mt76_tx_cb data in the skb
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Rely on the txs fixed-rate bit instead of info->control.rates
Signed-off-by: Felix Fietkau <nbd@nbd.name>

It is not really DMA specific, and moving it makes it possible to make some
functions in mac.c static
Signed-off-by: Felix Fietkau <nbd@nbd.name>

The same is done on the other chips already, so it is very likely needed
on MT7915 as well
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Move IRQ processing to a tasklet, similar to MT7615/MT7663
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Merge tag 'wireless-drivers-next-2021-06-16' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for v5.14

First set of patches for v5.14. Major new features are here support
WCN6855 PCI in ath11k and WoWLAN support for wcn36xx. Also smaller
fixes and cleanups all over.

ath9k

* provide STBC info in the received frames

brcmfmac

* fix setting of station info chains bitmask

* correctly report average RSSI in station info

rsi

* support for changing beacon interval in AP mode

ath11k

* support for WCN6855 PCI hardware

wcn36xx

* WoWLAN support with magic packets and GTK rekeying
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Vadym Kochan says:

====================
Marvell Prestera add flower and match all support

Add ACL infrastructure for Prestera Switch ASICs family devices to
offload cls_flower rules to be processed in the HW.

ACL implementation is based on tc filter api. The flower classifier
is supported to configure ACL rules/matches/action.

Supported actions:

    - drop
    - trap
    - pass

Supported dissector keys:

    - indev
    - src_mac
    - dst_mac
    - src_ip
    - dst_ip
    - ip_proto
    - src_port
    - dst_port
    - vlan_id
    - vlan_ethtype
    - icmp type/code

- Introduce matchall filter support
- Add SPAN API to configure port mirroring.
- Add tc mirror action.

At this moment, only mirror (egress) action is supported.

Example:
    tc filter ... action mirred egress mirror dev DEV

v2:
    Fixed "newline at EOF warnings" from "git am" by
        re-applying with --whitespace=fix

    patch #1:
        1) Set TC HW Offload always enabled without disable it     [suggested by Vladimir Oltean]
           by user. It reduced the logic by removing feature
           handling and acl block disable counting.

    patch #2:
        1) Removed extra not needed diff with prestera_port and    [suggested by Vladimir Oltean]
           prestera_switch  lines exchanging in prestera_acl.h

        2) Fix local variables ordering to reverse chrostmas tree  [suggested by Vladimir Oltean]

        3) Use tc_cls_can_offload_and_chain0() in                  [suggested by Vladimir Oltean]
           prestera_span_replace()

        4) Removed TODO about prio check                           [suggested by Vladimir Oltean]

        5) Rephrase error message if prestera_netdev_check()       [suggested by Vladimir Oltean]
           fails in prestera_span_replace()
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

- Introduce matchall filter support
- Add SPAN API to configure port mirroring.
- Add tc mirror action.

At this moment, only mirror (egress) action is supported.

Example:
    tc filter ... action mirred egress mirror dev DEV
Co-developed-by: Volodymyr Mytnyk <vmytnyk@marvell.com>
Signed-off-by: Volodymyr Mytnyk <vmytnyk@marvell.com>
Signed-off-by: Serhiy Boiko <serhiy.boiko@plvision.eu>
Signed-off-by: Vadym Kochan <vkochan@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add ACL infrastructure for Prestera Switch ASICs family devices to
offload cls_flower rules to be processed in the HW.

ACL implementation is based on tc filter api. The flower classifier
is supported to configure ACL rules/matches/action.

Supported actions:

    - drop
    - trap
    - pass

Supported dissector keys:

    - indev
    - src_mac
    - dst_mac
    - src_ip
    - dst_ip
    - ip_proto
    - src_port
    - dst_port
    - vlan_id
    - vlan_ethtype
    - icmp type/code
Co-developed-by: Volodymyr Mytnyk <vmytnyk@marvell.com>
Signed-off-by: Volodymyr Mytnyk <vmytnyk@marvell.com>
Signed-off-by: Serhiy Boiko <serhiy.boiko@plvision.eu>
Signed-off-by: Vadym Kochan <vkochan@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Karsten Graul says:

====================
net/smc: Add SMC statistic support

Please apply the following patch series for smc to netdev's net-next tree.

This v2 is a resend of the code contained in v1 but with an updated
cover letter to describe why we have chosen to use the generic netlink
mechanism to access the smc protocol's statistic data.

The patchset adds statistic support to the SMC protocol. Per-cpu
variables are used to collect the statistic information for better
performance and for reducing concurrency pitfalls. The code that is
collecting statistic data is implemented in macros to increase code
reuse and readability.
The generic netlink mechanism in SMC is extended to provide the
collected statistics to userspace.
Network namespace awareness is also part of the statistics
implementation.

SMC is a protocol interacting with PCI devices (like RoCE Cards) and
runs on top of the TCP protocol. As SMC is a network protocol and not
an ethernet device driver, we decided to use the generic netlink
interface. This should be comparable to what other protocols in the
net subsystem like tipc, ncsi, ieee802154 or tcp, et al, do.
There is already an established internal generic netlink interface
mechanism in SMC which is used to collect SMC Protocol internal
information. This patchset extends that existing mechanism.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Make the gathered SMC statistics network namespace aware, for each
namespace collect an own set of statistic information.
Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add support to collect more detailed SMC fallback reason statistics and
provide these statistics to user space on the netlink interface.
Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add the netlink function which collects the statistics information and
delivers it to the userspace.
Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Add the ability to collect SMC statistics information. Per-cpu
variables are used to collect the statistic information for better
performance and for reducing concurrency pitfalls. The code that is
collecting statistic data is implemented in macros to increase code
reuse and readability.
Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The continue statement at the end of a for-loop has no effect,
remove it.

Addresses-Coverity: ("Continue has no effect")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Simon Horman says:

====================
Next set of conntrack patches for the nfp driver

Louis Peens says:

This follows on from the previous series of a similar nature.
Looking at the diagram as explained in the previous series
this implements changes up to the point where the merged
nft entries are saved. There are still bits of stubbed
out code where offloading of the flows will be implemented.

	+-------------+                      +----------+
	| pre_ct flow +--------+             | nft flow |
	+-------------+        v             +------+---+
	                  +----------+              |
	                  | tc_merge +--------+     |
	                  +----------+        v     v
	+--------------+       ^           +-------------+
	| post_ct flow +-------+       +---+nft_tc merge |
	+--------------+               |   +-------------+
	                               |
	                               |
	                               |
	                               v
	                        Offload to nfp
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Fill in code stub to check that the flow actions are valid for
merge. The actions of the flow X should not conflict with the
matches of flow X+1. For now this check is quite strict and
set_actions are very limited, will need to update this when
NAT support is added.
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>