net: ethernet: mtk_eth_soc: support 36-bit DMA addressing on MT7988

Systems having 4 GiB of RAM and more require DMA addressing beyond the
current 32-bit limit. Starting from MT7988 the hardware now

net: ethernet: mtk_eth_soc: support 36-bit DMA addressing on MT7988

Systems having 4 GiB of RAM and more require DMA addressing beyond the
current 32-bit limit. Starting from MT7988 the hardware now supports
36-bit DMA addressing, let's use that new capability in the driver to
avoid running into swiotlb on systems with 4 GiB of RAM or more.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/95b919c98876c9e49761e44662e7c937479eecb8.1692721443.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: add support for in-SoC SRAM

MT7981, MT7986 and MT7988 come with in-SoC SRAM dedicated for Ethernet
DMA rings. Support using the SRAM without breaking existing device tree

net: ethernet: mtk_eth_soc: add support for in-SoC SRAM

MT7981, MT7986 and MT7988 come with in-SoC SRAM dedicated for Ethernet
DMA rings. Support using the SRAM without breaking existing device tree
bindings, ie. only new SoC starting from MT7988 will have the SRAM
declared as additional resource in device tree. For MT7981 and MT7986
an offset on top of the main I/O base is used.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/e45e0f230c63ad58869e8fe35b95a2fb8925b625.1692721443.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: add reset bits for MT7988

Add bits needed to reset the frame engine on MT7988.

Fixes: 445eb6448ed3 ("net: ethernet: mtk_eth_soc: add basic support for MT7988 SoC")
Signe

net: ethernet: mtk_eth_soc: add reset bits for MT7988

Add bits needed to reset the frame engine on MT7988.

Fixes: 445eb6448ed3 ("net: ethernet: mtk_eth_soc: add basic support for MT7988 SoC")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/89b6c38380e7a3800c1362aa7575600717bc7543.1692721443.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: fix register definitions for MT7988

More register macros need to be adjusted for the 3rd GMAC on MT7988.
Account for added bit in SYSCFG0_SGMII_MASK.

Fixes: 445eb6448ed3

net: ethernet: mtk_eth_soc: fix register definitions for MT7988

More register macros need to be adjusted for the 3rd GMAC on MT7988.
Account for added bit in SYSCFG0_SGMII_MASK.

Fixes: 445eb6448ed3 ("net: ethernet: mtk_eth_soc: add basic support for MT7988 SoC")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/1c8da012e2ca80939906d85f314138c552139f0f.1692721443.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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page_pool: split types and declarations from page_pool.h

Split types and pure function declarations from page_pool.h
and add them in page_page/types.h, so that C sources can
include page_pool.h and

page_pool: split types and declarations from page_pool.h

Split types and pure function declarations from page_pool.h
and add them in page_page/types.h, so that C sources can
include page_pool.h and headers should generally only include
page_pool/types.h as suggested by jakub.
Rename page_pool.h to page_pool/helpers.h to have both in
one place.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20230804180529.2483231-2-aleksander.lobakin@intel.com
[Jakub: change microsoft/mana, fix kdoc paths in Documentation]
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: add basic support for MT7988 SoC

Introduce support for ethernet chip available in MT7988 SoC to
mtk_eth_soc driver. As a first step support only the first GMAC which
is h

net: ethernet: mtk_eth_soc: add basic support for MT7988 SoC

Introduce support for ethernet chip available in MT7988 SoC to
mtk_eth_soc driver. As a first step support only the first GMAC which
is hard-wired to the internal DSA switch having 4 built-in gigabit
Ethernet PHYs.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/25c8377095b95d186872eeda7aa055da83e8f0ca.1690246605.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: convert clock bitmap to u64

The to-be-added MT7988 SoC adds many new clocks which need to be
controlled by the Ethernet driver, which will result in their total
number ex

net: ethernet: mtk_eth_soc: convert clock bitmap to u64

The to-be-added MT7988 SoC adds many new clocks which need to be
controlled by the Ethernet driver, which will result in their total
number exceeding 32.
Prepare by converting clock bitmaps into 64-bit types.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/6960a39bb0078cf84d7642a9558e6a91c6cc9df3.1690246066.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: convert caps in mtk_soc_data struct to u64

This is a preliminary patch to introduce support for MT7988 SoC.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-o

net: ethernet: mtk_eth_soc: convert caps in mtk_soc_data struct to u64

This is a preliminary patch to introduce support for MT7988 SoC.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/9499ac3670b2fc5b444404b84e8a4a169beabbf2.1690246066.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: add NETSYS_V3 version support

Introduce NETSYS_V3 chipset version support.
This is a preliminary patch to introduce support for MT7988 SoC.

Signed-off-by: Lorenzo Bianco

net: ethernet: mtk_eth_soc: add NETSYS_V3 version support

Introduce NETSYS_V3 chipset version support.
This is a preliminary patch to introduce support for MT7988 SoC.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/0db2260910755d76fa48e303b9f9bdf4e5a82340.1690246066.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: rely on MTK_MAX_DEVS and remove MTK_MAC_COUNT

Get rid of MTK_MAC_COUNT since it is a duplicated of MTK_MAX_DEVS.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Sig

net: ethernet: mtk_eth_soc: rely on MTK_MAX_DEVS and remove MTK_MAC_COUNT

Get rid of MTK_MAC_COUNT since it is a duplicated of MTK_MAX_DEVS.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/1856f4266f2fc80677807b1bad867659e7b00c65.1690246066.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: increase MAX_DEVS to 3

This is a preliminary patch to add MT7988 SoC support since it runs 3
macs instead of 2.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Sign

net: ethernet: mtk_eth_soc: increase MAX_DEVS to 3

This is a preliminary patch to add MT7988 SoC support since it runs 3
macs instead of 2.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/3563e5fab367e7d79a7f1296fabaa5c20f202d7a.1690246066.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: add version in mtk_soc_data

Introduce version field in mtk_soc_data data structure in order to
make mtk_eth driver easier to maintain for chipset configuration
codebase.

net: ethernet: mtk_eth_soc: add version in mtk_soc_data

Introduce version field in mtk_soc_data data structure in order to
make mtk_eth driver easier to maintain for chipset configuration
codebase. Get rid of MTK_NETSYS_V2 bit in chip capabilities.
This is a preliminary patch to introduce support for MT7988 SoC.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/e52fae302ca135436e5cdd26d38d87be2da63055.1690246066.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: remove incorrect PLL configuration

MT7623 GMAC0 attempts to configure the system clocking according to the
required speed in the .mac_config callback for non-SGMII, non-b

net: ethernet: mtk_eth_soc: remove incorrect PLL configuration

MT7623 GMAC0 attempts to configure the system clocking according to the
required speed in the .mac_config callback for non-SGMII, non-baseX and
non-TRGMII modes.

state->speed setting has never been reliable in the .mac_config
callback - there are cases where this is not the link speed,
particularly via ethtool paths, so this has always been unreliable (as
detailed in phylink's documentation.)

There is the additional issue that mtk_gmac0_rgmii_adjust() will only
be called if state->interface changes, which means it only configures
the system clocking on the very first .mac_config call, which will be
made when the network device is first brought up before any link is
established.

Essentially, this code is incredibly buggy, and probably never worked.

Moreover, checking the in-kernel DT files, it seems no platform makes
use of this code path.

Therefore, let's remove it, and disable interface modes for port 0 that
are not SGMII, 1000base-X, 2500base-X or TRGMII on the MT7623.

Reviewed-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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net: ethernet: mtk_eth_soc: drop generic vlan rx offload, only use DSA untagging

Through testing I found out that hardware vlan rx offload support seems to
have some hardware issues. At least when u

net: ethernet: mtk_eth_soc: drop generic vlan rx offload, only use DSA untagging

Through testing I found out that hardware vlan rx offload support seems to
have some hardware issues. At least when using multiple MACs and when
receiving tagged packets on the secondary MAC, the hardware can sometimes
start to emit wrong tags on the first MAC as well.

In order to avoid such issues, drop the feature configuration and use
the offload feature only for DSA hardware untagging on MT7621/MT7622
devices where this feature works properly.

Fixes: 08666cbb7dd5 ("net: ethernet: mtk_eth_soc: add support for configuring vlan rx offload")
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/20230426172153.8352-1-linux@fw-web.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: add code for offloading flows from wlan devices

WED version 2 (on MT7986 and later) can offload flows originating from
wireless devices.
In order to make that work, ndo_s

net: ethernet: mtk_eth_soc: add code for offloading flows from wlan devices

WED version 2 (on MT7986 and later) can offload flows originating from
wireless devices.
In order to make that work, ndo_setup_tc needs to be implemented on the
netdevs. This adds the required code to offload flows coming in from WED,
while keeping track of the incoming wed index used for selecting the
correct PPE device.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: mtk_eth_soc: switch to external PCS driver

Now that we got a PCS driver, use it and remove the now redundant
PCS code and it's header macros from the Ethernet driver.

Signed-off-by:

net: ethernet: mtk_eth_soc: switch to external PCS driver

Now that we got a PCS driver, use it and remove the now redundant
PCS code and it's header macros from the Ethernet driver.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: ppe: add support for flow accounting

The PPE units found in MT7622 and newer support packet and byte
accounting of hw-offloaded flows. Add support for reading those count

net: ethernet: mtk_eth_soc: ppe: add support for flow accounting

The PPE units found in MT7622 and newer support packet and byte
accounting of hw-offloaded flows. Add support for reading those counters
as found in MediaTek's SDK[1].

[1]: https://git01.mediatek.com/plugins/gitiles/openwrt/feeds/mtk-openwrt-feeds/+/bc6a6a375c800dc2b80e1a325a2c732d1737df92
Tested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: set MDIO bus clock frequency

Set MDIO bus clock frequency and allow setting a custom maximum
frequency from device tree.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Review

net: ethernet: mtk_eth_soc: set MDIO bus clock frequency

Set MDIO bus clock frequency and allow setting a custom maximum
frequency from device tree.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: add support for MT7981 SoC

The MediaTek MT7981 SoC comes with two 1G/2.5G SGMII ports, just like
MT7986.

In addition MT7981 is equipped with a built-in 1000Base-T PHY wh

net: ethernet: mtk_eth_soc: add support for MT7981 SoC

The MediaTek MT7981 SoC comes with two 1G/2.5G SGMII ports, just like
MT7986.

In addition MT7981 is equipped with a built-in 1000Base-T PHY which can
be used with GMAC1.

As many MT7981 boards make use of inverting SGMII signal polarity, add
new device-tree attribute 'mediatek,pn_swap' to support them.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: reset PCS state

Reset the internal PCS state machine when changing interface mode.
This prevents confusing the state machine when changing interface
modes, e.g. from SGMI

net: ethernet: mtk_eth_soc: reset PCS state

Reset the internal PCS state machine when changing interface mode.
This prevents confusing the state machine when changing interface
modes, e.g. from SGMII to 2500Base-X or vice-versa.

Fixes: 7e538372694b ("net: ethernet: mediatek: Re-add support SGMII")
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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net: ethernet: mtk_eth_soc: fix RX data corruption issue

Fix data corruption issue with SerDes connected PHYs operating at 1.25
Gbps speed where we could previously observe about 30% packet loss whi

net: ethernet: mtk_eth_soc: fix RX data corruption issue

Fix data corruption issue with SerDes connected PHYs operating at 1.25
Gbps speed where we could previously observe about 30% packet loss while
the bad packet counter was increasing.

As almost all boards with MediaTek MT7622 or MT7986 use either the MT7531
switch IC operating at 3.125Gbps SerDes rate or single-port PHYs using
rate-adaptation to 2500Base-X mode, this issue only got exposed now when
we started trying to use SFP modules operating with 1.25 Gbps with the
BananaPi R3 board.

The fix is to set bit 12 which disables the RX FIFO clear function when
setting up MAC MCR, MediaTek SDK did the same change stating:
"If without this patch, kernel might receive invalid packets that are
corrupted by GMAC."[1]

[1]: https://git01.mediatek.com/plugins/gitiles/openwrt/feeds/mtk-openwrt-feeds/+/d8a2975939a12686c4a95c40db21efdc3f821f63

Fixes: 42c03844e93d ("net-next: mediatek: add support for MediaTek MT7622 SoC")
Tested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/138da2735f92c8b6f8578ec2e5a794ee515b665f.1677937317.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: mediatek: sgmii: fix duplex configuration

The logic of the duplex bit is inverted. Setting it means half
duplex, not full duplex.

Fix and rename macro to avoid confusion.

Fixes: 7e538372694b

net: mediatek: sgmii: fix duplex configuration

The logic of the duplex bit is inverted. Setting it means half
duplex, not full duplex.

Fix and rename macro to avoid confusion.

Fixes: 7e538372694b ("net: ethernet: mediatek: Re-add support SGMII")
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: mediatek: sgmii: ensure the SGMII PHY is powered down on configuration

The code expect the PHY to be in power down which is only true after reset.
Allow changes of the SGMII parameters more tha

net: mediatek: sgmii: ensure the SGMII PHY is powered down on configuration

The code expect the PHY to be in power down which is only true after reset.
Allow changes of the SGMII parameters more than once.

Only power down when reconfiguring to avoid bouncing the link when there's
no reason to - based on code from Russell King.

There are cases when the SGMII_PHYA_PWD register contains 0x9 which
prevents SGMII from working. The SGMII still shows link but no traffic
can flow. Writing 0x0 to the PHYA_PWD register fix the issue. 0x0 was
taken from a good working state of the SGMII interface.

Fixes: 42c03844e93d ("net-next: mediatek: add support for MediaTek MT7622 SoC")
Suggested-by: Russell King (Oracle) <linux@armlinux.org.uk>
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
[ bmork: rebased and squashed into one patch ]
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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net: ethernet: mtk_eth_soc: add dma checks to mtk_hw_reset_check

Introduce mtk_hw_check_dma_hang routine to monitor possible dma hangs.

Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Tested-by: D

net: ethernet: mtk_eth_soc: add dma checks to mtk_hw_reset_check

Introduce mtk_hw_check_dma_hang routine to monitor possible dma hangs.

Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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net: ethernet: mtk_eth_soc: align reset procedure to vendor sdk

Avoid to power-down the ethernet chip during hw reset and align reset
procedure to vendor sdk.

Reviewed-by: Leon Romanovsky <leonro@n

net: ethernet: mtk_eth_soc: align reset procedure to vendor sdk

Avoid to power-down the ethernet chip during hw reset and align reset
procedure to vendor sdk.

Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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