net: txgbe: use irq_domain for interrupt controller

In the current interrupt controller, the MAC interrupt acts as the
parent interrupt in the GPIO IRQ chip. But when the number of Rx/Tx
ring changes, the PCI IRQ vector needs to be reallocated. Then this
interrupt controller would be corrupted. So use irq_domain structure
to avoid the above problem.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: wangxun: add ethtool_ops for channel number

Add support to get RX/TX queue number with ethtool -l, and set RX/TX
queue number with ethtool -L. Since interrupts need to be rescheduled,
adjust the allocation of msix enties.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: wangxun: add coalesce options support

Support to show RX/TX coalesce with ethtool -c and set RX/TX
coalesce with ethtool -C.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: wangxun: add ethtool_ops for ring parameters

Support to query RX/TX depth with ethtool -g, and change RX/TX depth
with ethtool -G.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: wangxun: add flow control support

Add support to set pause params with ethtool -A and get pause
params with ethtool -a, for ethernet driver txgbe and ngbe.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: libwx: add phylink to libwx

For the following implementation, add struct phylink and phylink_config
to wx structure. Add the helper function for converting phylink to wx,
implement ethtool ksetting and nway reset in libwx.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: libwx: fix memory leak on free page

ifconfig ethx up, will set page->refcount larger than 1,
and then ifconfig ethx down, calling __page_frag_cache_drain()
to free pages, it is not compatible with page pool.
So deleting codes which changing page->refcount.

Fixes: 3c47e8ae113a ("net: libwx: Support to receive packets in NAPI")
Signed-off-by: duanqiangwen <duanqiangwen@net-swift.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: libwx: support hardware statistics

Implement update and clear Rx/Tx statistics.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Link: https://lore.kernel.org/r/20231011091906.70486-2-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: wangxun: move MDIO bus implementation to the library

Move similar code of accessing MDIO bus from txgbe/ngbe to libwx.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230912031424.721386-1-jiawenwu@trustnetic.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

net: txgbe: support copper NIC with external PHY

Wangxun SP chip supports to connect with external PHY (marvell 88x3310),
which links to 10GBASE-T/1000BASE-T/100BASE-T. Add the identification of
media types from subsystem device IDs. For sp_media_copper, register mdio
bus for the external PHY.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: txgbe: support switching mode to 1000BASE-X and SGMII

Disable data path before PCS VR reset while switching PCS mode, to prevent
the blocking of data path. Enable AN interrupt for CL37 auto-negotiation.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: ngbe: add Wake on Lan support

Implement ethtool_ops get_wol and set_wol.
Implement Wake-on-LAN support.

Wol requires hardware board support which use sub id
to identify.
Magic packets are checked by fw, for now just support
WAKE_MAGIC.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: txgbe: Support GPIO to SFP socket

Register GPIO chip and handle GPIO IRQ for SFP socket.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

net: txgbe: Add software nodes to support phylink

Register software nodes for GPIO, I2C, SFP and PHYLINK. Define the
device properties.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Piotr Raczynski <piotr.raczynski@intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

net: libwx: Implement xx_set_features ops

Implement wx_set_features function which to support
ndo_set_features.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: wangxun: Implement vlan add and kill functions

Implement vlan add/kill functions which add and remove
vlan id in hardware.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: wangxun: libwx add rx offload functions

Add rx offload functions for wx_clean_rx_irq
which supports ngbe and txgbe to implement
rx offload function.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: wangxun: libwx add tx offload functions

Add tx offload functions for wx_xmit_frame_ring which
includes wx_encode_tx_desc_ptype, wx_tso and wx_tx_csum.
which supports ngbe and txgbe to implement tx offload
function.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: libwx: Replace zero-length array with flexible-array member

Zero-length arrays as fake flexible arrays are deprecated, and we are
moving towards adopting C99 flexible-array members instead.

Transform zero-length array into flexible-array member in struct
wx_q_vector.

Link: https://github.com/KSPP/linux/issues/21
Link: https://github.com/KSPP/linux/issues/286
Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/ZGKGwtsobVZecWa4@work
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: wangxun: Remove macro that is redefined

Remove PCI_VENDOR_ID_WANGXUN which is redefined in
drivers/pci/quirks.

Signed-off-by: mengyuanlou <mengyuanlou@net-swift.com>
Link: https://lore.kernel.org/r/20230315091846.17314-1-mengyuanlou@net-swift.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: wangxun: Implement the ndo change mtu interface

Add ngbe and txgbe ndo_change_mtu support.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: wangxun: Fix vector length of interrupt cause

There is 64-bit interrupt cause register for txgbe. Fix to clear upper
32 bits.

Fixes: 3f703186113f ("net: libwx: Add irq flow functions")
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230322103632.132011-1-jiawenwu@trustnetic.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: wangxun: Add the basic ethtool interfaces

Add the basic ethtool ops get_drvinfo and get_link for ngbe and txgbe.
Ngbe implements get_link_ksettings, nway_reset and set_link_ksettings
for free using phylib code.
The code related to the physical interface is not yet fully implemented
in txgbe using phylink code. So do not implement get_link_ksettings,
nway_reset and set_link_ksettings in txgbe.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230214091527.69943-1-mengyuanlou@net-swift.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: libwx: Add tx path to process packets

Support to transmit packets without hardware features.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: libwx: Support to receive packets in NAPI

Clean all queues associated with a q_vector, to simple receive packets
without hardware features.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: txgbe: Setup Rx and Tx ring

Improve the configuration of Rx and Tx ring, set Rx flags and implement
ndo_set_rx_mode ops.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: libwx: Allocate Rx and Tx resources

Setup Rx and Tx descriptors for specefic rings.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: libwx: Configure Rx and Tx unit on hardware

Configure hardware for preparing to process packets. Including configure
receive and transmit unit of the MAC layer, and setup the specific rings.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: libwx: Add irq flow functions

Add irq flow functions for ngbe and txgbe.
Alloc pcie msix irqs for drivers, otherwise fall back to msi/legacy.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: wangxun: clean up the code

Convert various mult-bit fields to be defined using GENMASK/FIELD_PREP.
Simplify the code with the ternary operator.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230116103839.84087-1-mengyuanlou@net-swift.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: ngbe: Add ngbe mdio bus driver.

Add mdio bus register for ngbe.
The internal phy and external phy need to be handled separately.
Add phy changed event detection.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230111111718.40745-1-mengyuanlou@net-swift.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: ngbe: Remove structure ngbe_adapter

Move the total private structure to libwx.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: txgbe: Remove structure txgbe_adapter

Move the total private structure to libwx.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: wangxun: Rename private structure in libwx

In order to move the total members in struct adapter to struct wx_hw
to keep the code clean, it's a bad name of 'wx_hw' only for hardware.
Rename 'wx_hw' to 'wx', and rename the pointers at use.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: wangxun: Move MAC address handling to libwx

For setting MAC address, both txgbe and ngbe drivers have the same handling
flow with different parameters. Move the same codes to libwx.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net: ngbe: Initialize sw info and register netdev

Initialize ngbe mac/phy type.
Check whether the firmware is initialized.
Initialize ngbe hw and register netdev.

Signed-off-by: Mengyuan Lou <mengyuanlou@net-swift.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: libwx: Implement interaction with firmware

Add mailbox commands to interact with firmware.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: txgbe: Set MAC address and register netdev

Add MAC address related operations, and register netdev.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: txgbe: Reset hardware

Reset and initialize the hardware by configuring the MAC layer.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net: txgbe: Store PCI info

Get PCI config space info, set LAN id and check flash status.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>