KSZ8794 4-port Ethernet switch driver. More...

#include "core/net.h"
#include "core/ethernet_misc.h"
#include "drivers/switch/ksz8794_driver.h"
#include "debug.h"

Macros
#define	TRACE_LEVEL NIC_TRACE_LEVEL

Functions
error_t	ksz8794Init (NetInterface *interface)
	KSZ8794 Ethernet switch initialization. More...

__weak_func void	ksz8794InitHook (NetInterface *interface)
	KSZ8794 custom configuration. More...

void	ksz8794Tick (NetInterface *interface)
	KSZ8794 timer handler. More...

void	ksz8794EnableIrq (NetInterface *interface)
	Enable interrupts. More...

void	ksz8794DisableIrq (NetInterface *interface)
	Disable interrupts. More...

void	ksz8794EventHandler (NetInterface *interface)
	KSZ8794 event handler. More...

error_t	ksz8794TagFrame (NetInterface interface, NetBuffer buffer, size_t offset, NetTxAncillary ancillary)
	Add tail tag to Ethernet frame. More...

error_t	ksz8794UntagFrame (NetInterface interface, uint8_t frame, size_t length, NetRxAncillary *ancillary)
	Decode tail tag from incoming Ethernet frame. More...

bool_t	ksz8794GetLinkState (NetInterface *interface, uint8_t port)
	Get link state. More...

uint32_t	ksz8794GetLinkSpeed (NetInterface *interface, uint8_t port)
	Get link speed. More...

NicDuplexMode	ksz8794GetDuplexMode (NetInterface *interface, uint8_t port)
	Get duplex mode. More...

void	ksz8794SetPortState (NetInterface *interface, uint8_t port, SwitchPortState state)
	Set port state. More...

SwitchPortState	ksz8794GetPortState (NetInterface *interface, uint8_t port)
	Get port state. More...

void	ksz8794SetAgingTime (NetInterface *interface, uint32_t agingTime)
	Set aging time for dynamic filtering entries. More...

void	ksz8794EnableIgmpSnooping (NetInterface *interface, bool_t enable)
	Enable IGMP snooping. More...

void	ksz8794EnableMldSnooping (NetInterface *interface, bool_t enable)
	Enable MLD snooping. More...

void	ksz8794EnableRsvdMcastTable (NetInterface *interface, bool_t enable)
	Enable reserved multicast table. More...

error_t	ksz8794AddStaticFdbEntry (NetInterface interface, const SwitchFdbEntry entry)
	Add a new entry to the static MAC table. More...

error_t	ksz8794DeleteStaticFdbEntry (NetInterface interface, const SwitchFdbEntry entry)
	Remove an entry from the static MAC table. More...

error_t	ksz8794GetStaticFdbEntry (NetInterface interface, uint_t index, SwitchFdbEntry entry)
	Read an entry from the static MAC table. More...

void	ksz8794FlushStaticFdbTable (NetInterface *interface)
	Flush static MAC table. More...

error_t	ksz8794GetDynamicFdbEntry (NetInterface interface, uint_t index, SwitchFdbEntry entry)
	Read an entry from the dynamic MAC table. More...

void	ksz8794FlushDynamicFdbTable (NetInterface *interface, uint8_t port)
	Flush dynamic MAC table. More...

void	ksz8794SetUnknownMcastFwdPorts (NetInterface *interface, bool_t enable, uint32_t forwardPorts)
	Set forward ports for unknown multicast packets. More...

void	ksz8794WritePhyReg (NetInterface *interface, uint8_t port, uint8_t address, uint16_t data)
	Write PHY register. More...

uint16_t	ksz8794ReadPhyReg (NetInterface *interface, uint8_t port, uint8_t address)
	Read PHY register. More...

void	ksz8794DumpPhyReg (NetInterface *interface, uint8_t port)
	Dump PHY registers for debugging purpose. More...

void	ksz8794WriteSwitchReg (NetInterface *interface, uint16_t address, uint8_t data)
	Write switch register. More...

uint8_t	ksz8794ReadSwitchReg (NetInterface *interface, uint16_t address)
	Read switch register. More...

void	ksz8794DumpSwitchReg (NetInterface *interface)
	Dump switch registers for debugging purpose. More...

Variables
const SwitchDriver	ksz8794SwitchDriver
	KSZ8794 Ethernet switch driver. More...

const uint8_t	ksz8794IngressTailTag [4]
	Tail tag rules (host to KSZ8794) More...

Detailed Description

KSZ8794 4-port Ethernet switch driver.

License

SPDX-License-Identifier: GPL-2.0-or-later

This file is part of CycloneTCP Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author: Oryx Embedded SARL (www.oryx-embedded.com)

Version: 2.4.4

Definition in file ksz8794_driver.c.

Macro Definition Documentation

◆ TRACE_LEVEL

#define TRACE_LEVEL NIC_TRACE_LEVEL

Definition at line 32 of file ksz8794_driver.c.

Function Documentation

◆ ksz8794AddStaticFdbEntry()

error_t ksz8794AddStaticFdbEntry	(	NetInterface *	interface,
		const SwitchFdbEntry *	entry
	)

Add a new entry to the static MAC table.

Parameters

[in]	interface	Underlying network interface
[in]	entry	Pointer to the forwarding database entry

Returns: Error code

Definition at line 965 of file ksz8794_driver.c.

◆ ksz8794DeleteStaticFdbEntry()

error_t ksz8794DeleteStaticFdbEntry	(	NetInterface *	interface,
		const SwitchFdbEntry *	entry
	)

Remove an entry from the static MAC table.

Parameters

[in]	interface	Underlying network interface
[in]	entry	Forwarding database entry to remove from the table

Returns: Error code

Definition at line 1067 of file ksz8794_driver.c.

◆ ksz8794DisableIrq()

void ksz8794DisableIrq ( NetInterface * interface )

Disable interrupts.

Parameters

[in] interface Underlying network interface

Definition at line 299 of file ksz8794_driver.c.

◆ ksz8794DumpPhyReg()

void ksz8794DumpPhyReg	(	NetInterface *	interface,
		uint8_t	port
	)

Dump PHY registers for debugging purpose.

Parameters

[in]	interface	Underlying network interface
[in]	port	Port number

Definition at line 1481 of file ksz8794_driver.c.

◆ ksz8794DumpSwitchReg()

void ksz8794DumpSwitchReg ( NetInterface * interface )

Dump switch registers for debugging purpose.

Parameters

[in] interface Underlying network interface

Definition at line 1589 of file ksz8794_driver.c.

◆ ksz8794EnableIgmpSnooping()

void ksz8794EnableIgmpSnooping	(	NetInterface *	interface,
		bool_t	enable
	)

Enable IGMP snooping.

Parameters

[in]	interface	Underlying network interface
[in]	enable	Enable or disable IGMP snooping

Definition at line 867 of file ksz8794_driver.c.

◆ ksz8794EnableIrq()

void ksz8794EnableIrq ( NetInterface * interface )

Enable interrupts.

Parameters

[in] interface Underlying network interface

Definition at line 289 of file ksz8794_driver.c.

◆ ksz8794EnableMldSnooping()

void ksz8794EnableMldSnooping	(	NetInterface *	interface,
		bool_t	enable
	)

Enable MLD snooping.

Parameters

[in]	interface	Underlying network interface
[in]	enable	Enable or disable MLD snooping

Definition at line 895 of file ksz8794_driver.c.

◆ ksz8794EnableRsvdMcastTable()

void ksz8794EnableRsvdMcastTable	(	NetInterface *	interface,
		bool_t	enable
	)

Enable reserved multicast table.

Parameters

[in]	interface	Underlying network interface
[in]	enable	Enable or disable reserved group addresses

Definition at line 923 of file ksz8794_driver.c.

◆ ksz8794EventHandler()

void ksz8794EventHandler ( NetInterface * interface )

KSZ8794 event handler.

Parameters

[in] interface Underlying network interface

Definition at line 309 of file ksz8794_driver.c.

◆ ksz8794FlushDynamicFdbTable()

void ksz8794FlushDynamicFdbTable	(	NetInterface *	interface,
		uint8_t	port
	)

Flush dynamic MAC table.

Parameters

[in]	interface	Underlying network interface
[in]	port	Port number

Definition at line 1330 of file ksz8794_driver.c.

◆ ksz8794FlushStaticFdbTable()

void ksz8794FlushStaticFdbTable ( NetInterface * interface )

Flush static MAC table.

Parameters

[in] interface Underlying network interface

Definition at line 1198 of file ksz8794_driver.c.

◆ ksz8794GetDuplexMode()

NicDuplexMode ksz8794GetDuplexMode	(	NetInterface *	interface,
		uint8_t	port
	)

Get duplex mode.

Parameters

[in]	interface	Underlying network interface
[in]	port	Port number

Returns: Duplex mode

Definition at line 672 of file ksz8794_driver.c.

◆ ksz8794GetDynamicFdbEntry()

error_t ksz8794GetDynamicFdbEntry	(	NetInterface *	interface,
		uint_t	index,
		SwitchFdbEntry *	entry
	)

Read an entry from the dynamic MAC table.

Parameters

[in]	interface	Underlying network interface
[in]	index	Zero-based index of the entry to read
[out]	entry	Pointer to the forwarding database entry

Returns: Error code

Definition at line 1246 of file ksz8794_driver.c.

◆ ksz8794GetLinkSpeed()

uint32_t ksz8794GetLinkSpeed	(	NetInterface *	interface,
		uint8_t	port
	)

Get link speed.

Parameters

[in]	interface	Underlying network interface
[in]	port	Port number

Returns: Link speed

Definition at line 589 of file ksz8794_driver.c.

◆ ksz8794GetLinkState()

bool_t ksz8794GetLinkState	(	NetInterface *	interface,
		uint8_t	port
	)

Get link state.

Parameters

[in]	interface	Underlying network interface
[in]	port	Port number

Returns: Link state

Definition at line 545 of file ksz8794_driver.c.

◆ ksz8794GetPortState()

SwitchPortState ksz8794GetPortState	(	NetInterface *	interface,
		uint8_t	port
	)

Get port state.

Parameters

[in]	interface	Underlying network interface
[in]	port	Port number

Returns: Port state

Definition at line 792 of file ksz8794_driver.c.

◆ ksz8794GetStaticFdbEntry()

error_t ksz8794GetStaticFdbEntry	(	NetInterface *	interface,
		uint_t	index,
		SwitchFdbEntry *	entry
	)

Read an entry from the static MAC table.

Parameters

[in]	interface	Underlying network interface
[in]	index	Zero-based index of the entry to read
[out]	entry	Pointer to the forwarding database entry

Returns: Error code

Definition at line 1136 of file ksz8794_driver.c.

◆ ksz8794Init()

error_t ksz8794Init ( NetInterface * interface )

KSZ8794 Ethernet switch initialization.

Parameters

[in] interface Underlying network interface

Returns: Error code

Definition at line 92 of file ksz8794_driver.c.

◆ ksz8794InitHook()

__weak_func void ksz8794InitHook ( NetInterface * interface )

KSZ8794 custom configuration.

Parameters

[in] interface Underlying network interface

Definition at line 209 of file ksz8794_driver.c.

◆ ksz8794ReadPhyReg()

uint16_t ksz8794ReadPhyReg	(	NetInterface *	interface,
		uint8_t	port,
		uint8_t	address
	)

Read PHY register.

Parameters

[in]	interface	Underlying network interface
[in]	port	Port number
[in]	address	PHY register address

Returns: Register value

Definition at line 1455 of file ksz8794_driver.c.

◆ ksz8794ReadSwitchReg()

uint8_t ksz8794ReadSwitchReg	(	NetInterface *	interface,
		uint16_t	address
	)

Read switch register.

Parameters

[in]	interface	Underlying network interface
[in]	address	Switch register address

Returns: Register value

Definition at line 1546 of file ksz8794_driver.c.

◆ ksz8794SetAgingTime()

void ksz8794SetAgingTime	(	NetInterface *	interface,
		uint32_t	agingTime
	)

Set aging time for dynamic filtering entries.

Parameters

[in]	interface	Underlying network interface
[in]	agingTime	Aging time, in seconds

Definition at line 855 of file ksz8794_driver.c.

◆ ksz8794SetPortState()

void ksz8794SetPortState	(	NetInterface *	interface,
		uint8_t	port,
		SwitchPortState	state
	)

Set port state.

Parameters

[in]	interface	Underlying network interface
[in]	port	Port number
[in]	state	Port state

Definition at line 736 of file ksz8794_driver.c.

◆ ksz8794SetUnknownMcastFwdPorts()

void ksz8794SetUnknownMcastFwdPorts	(	NetInterface *	interface,
		bool_t	enable,
		uint32_t	forwardPorts
	)

Set forward ports for unknown multicast packets.

Parameters

[in]	interface	Underlying network interface
[in]	enable	Enable or disable forwarding of unknown multicast packets
[in]	forwardPorts	Port map

Definition at line 1387 of file ksz8794_driver.c.

◆ ksz8794TagFrame()

error_t ksz8794TagFrame	(	NetInterface *	interface,
		NetBuffer *	buffer,
		size_t *	offset,
		NetTxAncillary *	ancillary
	)

Add tail tag to Ethernet frame.

Parameters

[in]	interface	Underlying network interface
[in]	buffer	Multi-part buffer containing the payload
[in,out]	offset	Offset to the first payload byte
[in]	ancillary	Additional options passed to the stack along with the packet

Returns: Error code

Definition at line 434 of file ksz8794_driver.c.

◆ ksz8794Tick()

void ksz8794Tick ( NetInterface * interface )

KSZ8794 timer handler.

Parameters

[in] interface Underlying network interface

Definition at line 219 of file ksz8794_driver.c.

◆ ksz8794UntagFrame()

error_t ksz8794UntagFrame	(	NetInterface *	interface,
		uint8_t **	frame,
		size_t *	length,
		NetRxAncillary *	ancillary
	)

Decode tail tag from incoming Ethernet frame.

Parameters

[in]	interface	Underlying network interface
[in,out]	frame	Pointer to the received Ethernet frame
[in,out]	length	Length of the frame, in bytes
[in,out]	ancillary	Additional options passed to the stack along with the packet

Returns: Error code

Definition at line 493 of file ksz8794_driver.c.

◆ ksz8794WritePhyReg()

void ksz8794WritePhyReg	(	NetInterface *	interface,
		uint8_t	port,
		uint8_t	address,
		uint16_t	data
	)

Write PHY register.

Parameters

[in]	interface	Underlying network interface
[in]	port	Port number
[in]	address	PHY register address
[in]	data	Register value

Definition at line 1432 of file ksz8794_driver.c.

◆ ksz8794WriteSwitchReg()

void ksz8794WriteSwitchReg	(	NetInterface *	interface,
		uint16_t	address,
		uint8_t	data
	)

Write switch register.

Parameters

[in]	interface	Underlying network interface
[in]	address	Switch register address
[in]	data	Register value

Definition at line 1505 of file ksz8794_driver.c.

Variable Documentation

◆ ksz8794IngressTailTag

const uint8_t ksz8794IngressTailTag[4]

Initial value:

=
{
   KSZ8794_TAIL_TAG_NORMAL_ADDR_LOOKUP,
   KSZ8794_TAIL_TAG_PORT_SEL | KSZ8794_TAIL_TAG_DEST_PORT1,
   KSZ8794_TAIL_TAG_PORT_SEL | KSZ8794_TAIL_TAG_DEST_PORT2,
   KSZ8794_TAIL_TAG_PORT_SEL | KSZ8794_TAIL_TAG_DEST_PORT3
}

Tail tag rules (host to KSZ8794)

Definition at line 77 of file ksz8794_driver.c.

◆ ksz8794SwitchDriver

const SwitchDriver ksz8794SwitchDriver

Initial value:

KSZ8794 Ethernet switch driver.

Definition at line 45 of file ksz8794_driver.c.

Macros

Functions

Variables

Detailed Description

License

Macro Definition Documentation

◆ TRACE_LEVEL

Function Documentation

◆ ksz8794AddStaticFdbEntry()

◆ ksz8794DeleteStaticFdbEntry()

◆ ksz8794DisableIrq()

◆ ksz8794DumpPhyReg()

◆ ksz8794DumpSwitchReg()

◆ ksz8794EnableIgmpSnooping()

◆ ksz8794EnableIrq()

◆ ksz8794EnableMldSnooping()

◆ ksz8794EnableRsvdMcastTable()

◆ ksz8794EventHandler()

◆ ksz8794FlushDynamicFdbTable()

◆ ksz8794FlushStaticFdbTable()

◆ ksz8794GetDuplexMode()

◆ ksz8794GetDynamicFdbEntry()

◆ ksz8794GetLinkSpeed()

◆ ksz8794GetLinkState()

◆ ksz8794GetPortState()

◆ ksz8794GetStaticFdbEntry()

◆ ksz8794Init()

◆ ksz8794InitHook()

◆ ksz8794ReadPhyReg()

◆ ksz8794ReadSwitchReg()

◆ ksz8794SetAgingTime()

◆ ksz8794SetPortState()

◆ ksz8794SetUnknownMcastFwdPorts()

◆ ksz8794TagFrame()

◆ ksz8794Tick()

◆ ksz8794UntagFrame()

◆ ksz8794WritePhyReg()

◆ ksz8794WriteSwitchReg()

Variable Documentation

◆ ksz8794IngressTailTag

◆ ksz8794SwitchDriver