e3cbf478f8
Original comment: This patch adds the main chunk of the driver. The ethernet core is used in all of the Mediatek/Ralink Wireless SoCs. Over the years we have seen various changes to * the register layout * the type of ports (single/dual gbit, internal FE/Gbit switch) * dma engine (PDMA/QDMA) and new offloading features were added, such as * checksum * VLAN TX/RX * TSO * LRO The core functionality has however remained the same allowing us to use the same code for all SoCs. The abstraction for the various SoCs uses the typical ops struct pattern which allows us to extend or override the core functionality depending on which SoC we are on. The code to bring up the switches and external ports has also been split into separate files. There are 2 types of DMA engine, PDMA and the newer QDMA. PDMA uses a typical ring buffer while QDMA uses a linked list. Unfortunatley we have the MT7621 which has a few silicon issues. Due to these issues we need to PDMA for RX and QDMA for TX. All SoCs newer than the MT7621 can can run on QDMA exclusively. Most of the SoCs have a switch frontend. Older silicon has a so called ESW (Ethernet Switch) while newer cores have a GSW (Gigabit switch). Additionally there is a MDIO bus that can be used to talk to PHYs. In these cases one switch port get changed into a normal MAC port. Some SoCs have a dual MAC, we currently only support this on MT7623. NeilBrown: - removed everything not closely related to mt7621, as that is all I can test - converted ethtool.c to new ethtool_link_ksettings interfaces. Doesn't work yet. - updated some phydev interface use: e.g. dev_name() -> phydev_name() - updated mdio to use mdiobus_get_phy() - added some missing export_symbols - updated get_stats64 interface - TX_DMA_FPORT and TX_DMA_TSO to tx dma descriptor - range checked RX_DMA_FPORT in rx dma descriptor - tell hardware what mac address was chosen - fixed MT7620_GDMA1_FWD_CFG which was using wrong value Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Michael Lee <igvtee@gmail.com> Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
28 lines
1 KiB
C
28 lines
1 KiB
C
/* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Copyright (C) 2009-2016 John Crispin <blogic@openwrt.org>
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* Copyright (C) 2009-2016 Felix Fietkau <nbd@openwrt.org>
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* Copyright (C) 2013-2016 Michael Lee <igvtee@gmail.com>
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*/
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#ifndef _RALINK_MDIO_H__
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#define _RALINK_MDIO_H__
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#ifdef CONFIG_NET_MEDIATEK_MDIO
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int mtk_mdio_init(struct mtk_eth *eth);
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void mtk_mdio_cleanup(struct mtk_eth *eth);
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int mtk_connect_phy_node(struct mtk_eth *eth, struct mtk_mac *mac,
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struct device_node *phy_node);
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#else
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static inline int mtk_mdio_init(struct mtk_eth *eth) { return 0; }
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static inline void mtk_mdio_cleanup(struct mtk_eth *eth) {}
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#endif
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#endif
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