ramips: remove legacy ethernet driver components for mt7621

The mt7621 subtarget has been switched to DSA quite a while ago and
seems to run sufficiently fine. Build with older kernels than 5.4 has
been disabled directly during the kernel bump, so our local ethernet
driver is unused in master since then.

Therefore, let's remove the mt7621-specific parts of "our" ethernet
driver, so we don't have to maintain them and it's obvious to
everybody that they are not used anymore.

This also drops the offloading components as this was specifically
implemented to depend on mt7621.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 0 insertions, 260 deletions

diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_offload.h b/target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_offload.h
deleted file mode 100644
index f714c90f92..0000000000
--- a/target/linux/ramips/files/drivers/net/ethernet/ralink/mtk_offload.h
+++ /dev/null
@@ -1,260 +0,0 @@
-/*   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; version 2 of the License
- *
- *   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.
- *
- *   Copyright (C) 2014-2016 Sean Wang <sean.wang@mediatek.com>
- *   Copyright (C) 2016-2017 John Crispin <blogic@openwrt.org>
- */
-
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/if.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-#include <linux/reset.h>
-#include <linux/netfilter.h>
-#include <linux/netdevice.h>
-#include <net/netfilter/nf_flow_table.h>
-#include <linux/debugfs.h>
-#include <linux/etherdevice.h>
-#include <linux/bitfield.h>
-
-#include "mtk_eth_soc.h"
-
-#ifdef CONFIG_RALINK
-/* ramips compat */
-#define mtk_eth					fe_priv
-#define MTK_GDMA_FWD_CFG(x)			(0x500 + (x * 0x1000))
-#define mtk_m32					fe_m32
-
-static inline u32
-mtk_r32(struct mtk_eth *eth, u32 reg)
-{
-	return fe_r32(reg);
-}
-
-static inline void
-mtk_w32(struct mtk_eth *eth, u32 val, u32 reg)
-{
-	fe_w32(val, reg);
-}
-#endif
-
-#define MTK_REG_PPE_GLO_CFG			0xe00
-#define   MTK_PPE_GLO_CFG_BUSY			BIT(31)
-#define   MTK_PPE_GLO_CFG_TTL0_DROP		BIT(4)
-#define   MTK_PPE_GLO_CFG_EN			BIT(0)
-
-#define MTK_REG_PPE_FLOW_CFG			0xe04
-#define   MTK_PPE_FLOW_CFG_IPV4_GREK_EN		BIT(19)
-#define   MTK_PPE_FLOW_CFG_IPV4_NAT_FRAG_EN	BIT(17)
-#define   MTK_PPE_FLOW_CFG_IPV4_NAPT_EN		BIT(13)
-#define   MTK_PPE_FLOW_CFG_IPV4_NAT_EN		BIT(12)
-#define   MTK_PPE_FLOW_CFG_FUC_FOE		BIT(2)
-#define   MTK_PPE_FLOW_CFG_FMC_FOE		BIT(1)
-
-#define MTK_REG_PPE_IP_PROT_CHK			0xe08
-
-#define MTK_REG_PPE_TB_BASE			0xe20
-
-#define MTK_REG_PPE_BNDR			0xe28
-#define   MTK_PPE_BNDR_RATE_MASK		0xffff
-
-#define MTK_REG_PPE_BIND_LMT_0			0xe2C
-
-#define MTK_REG_PPE_BIND_LMT_1			0xe30
-#define   MTK_PPE_NTU_KA			BIT(16)
-
-#define MTK_REG_PPE_KA				0xe34
-#define   MTK_PPE_KA_T				BIT(0)
-#define   MTK_PPE_KA_TCP			BIT(16)
-#define   MTK_PPE_KA_UDP			BIT(24)
-
-#define MTK_REG_PPE_UNB_AGE			0xe38
-#define   MTK_PPE_UNB_AGE_MNP_MASK		(0xffff << 16)
-#define   MTK_PPE_UNB_AGE_MNP			(1000 << 16)
-#define   MTK_PPE_UNB_AGE_DLTA_MASK		0xff
-#define   MTK_PPE_UNB_AGE_DLTA			3
-
-#define MTK_REG_PPE_BND_AGE0			0xe3c
-#define   MTK_PPE_BND_AGE0_NTU_DLTA_MASK	(0xffff << 16)
-#define   MTK_PPE_BND_AGE0_NTU_DLTA		(5 << 16)
-#define   MTK_PPE_BND_AGE0_UDP_DLTA_MASK	0xffff
-#define   MTK_PPE_BND_AGE0_UDP_DLTA		5
-
-#define MTK_REG_PPE_BND_AGE1			0xe40
-#define   MTK_PPE_BND_AGE1_FIN_DLTA_MASK	(0xffff << 16)
-#define   MTK_PPE_BND_AGE1_FIN_DLTA		(5 << 16)
-#define   MTK_PPE_BND_AGE1_TCP_DLTA_MASK	0xffff
-#define   MTK_PPE_BND_AGE1_TCP_DLTA		5
-
-#define MTK_REG_PPE_DFT_CPORT			0xe48
-
-#define MTK_REG_PPE_TB_CFG			0xe1c
-#define   MTK_PPE_TB_CFG_X_MODE_MASK		(3 << 18)
-#define   MTK_PPE_TB_CFG_HASH_MODE1		BIT(14)
-#define   MTK_PPE_TB_CFG_HASH_MODE_MASK		(0x3 << 14)
-#define   MTK_PPE_TB_CFG_KA			(3 << 12)
-#define   MTK_PPE_TB_CFG_KA_MASK		(0x3 << 12)
-#define   MTK_PPE_TB_CFG_FIN_AGE		BIT(11)
-#define   MTK_PPE_TB_CFG_UDP_AGE		BIT(10)
-#define   MTK_PPE_TB_CFG_TCP_AGE		BIT(9)
-#define   MTK_PPE_TB_CFG_UNBD_AGE		BIT(8)
-#define   MTK_PPE_TB_CFG_NTU_AGE		BIT(7)
-#define   MTK_PPE_TB_CFG_SMA_FWD_CPU		(0x3 << 4)
-#define   MTK_PPE_TB_CFG_SMA_MASK		(0x3 << 4)
-#define   MTK_PPE_TB_CFG_ENTRY_SZ_64B		0
-#define   MTK_PPE_TB_CFG_ENTRY_SZ_MASK		BIT(3)
-#define   MTK_PPE_TB_CFG_TBL_SZ_4K		2
-#define   MTK_PPE_TB_CFG_TBL_SZ_MASK		0x7
-
-#define MTK_REG_PPE_HASH_SEED			0xe44
-#define   MTK_PPE_HASH_SEED			0x12345678
-
-
-#define MTK_REG_PPE_CAH_CTRL			0xf20
-#define   MTK_PPE_CAH_CTRL_X_MODE		BIT(9)
-#define   MTK_PPE_CAH_CTRL_EN			BIT(0)
-
-struct mtk_foe_unbind_info_blk {
-	u32 time_stamp:8;
-	u32 pcnt:16;		/* packet count */
-	u32 preb:1;
-	u32 pkt_type:3;
-	u32 state:2;
-	u32 udp:1;
-	u32 sta:1;		/* static entry */
-} __attribute__ ((packed));
-
-struct mtk_foe_bind_info_blk {
-	u32 time_stamp:15;
-	u32 ka:1;		/* keep alive */
-	u32 vlan_layer:3;
-	u32 psn:1;		/* egress packet has PPPoE session */
-#ifdef CONFIG_RALINK
-	u32 vpm:2;		/* 0:ethertype remark, 1:0x8100(CR default) */
-#else
-	u32 vpm:1;		/* 0:ethertype remark, 1:0x8100(CR default) */
-	u32 ps:1;		/* packet sampling */
-#endif
-	u32 cah:1;		/* cacheable flag */
-	u32 rmt:1;		/* remove tunnel ip header (6rd/dslite only) */
-	u32 ttl:1;
-	u32 pkt_type:3;
-	u32 state:2;
-	u32 udp:1;
-	u32 sta:1;		/* static entry */
-} __attribute__ ((packed));
-
-struct mtk_foe_info_blk2 {
-	u32 qid:4;		/* QID in Qos Port */
-	u32 fqos:1;		/* force to PSE QoS port */
-	u32 dp:3;		/* force to PSE port x 
-				 0:PSE,1:GSW, 2:GMAC,4:PPE,5:QDMA,7=DROP */
-	u32 mcast:1;		/* multicast this packet to CPU */
-	u32 pcpl:1;		/* OSBN */
-	u32 mlen:1;		/* 0:post 1:pre packet length in meter */
-	u32 alen:1;		/* 0:post 1:pre packet length in accounting */
-	u32 port_mg:6;		/* port meter group */
-	u32 port_ag:6;		/* port account group */
-	u32 dscp:8;		/* DSCP value */
-} __attribute__ ((packed));
-
-struct mtk_foe_ipv4_hnapt {
-	union {
-		struct mtk_foe_bind_info_blk bfib1;
-		struct mtk_foe_unbind_info_blk udib1;
-		u32 info_blk1;
-	};
-	u32 sip;
-	u32 dip;
-	u16 dport;
-	u16 sport;
-	union {
-		struct mtk_foe_info_blk2 iblk2;
-		u32 info_blk2;
-	};
-	u32 new_sip;
-	u32 new_dip;
-	u16 new_dport;
-	u16 new_sport;
-	u32 resv1;
-	u32 resv2;
-	u32 resv3:26;
-	u32 act_dp:6;		/* UDF */
-	u16 vlan1;
-	u16 etype;
-	u32 dmac_hi;
-	u16 vlan2;
-	u16 dmac_lo;
-	u32 smac_hi;
-	u16 pppoe_id;
-	u16 smac_lo;
-} __attribute__ ((packed));
-
-struct mtk_foe_entry {
-	union {
-		struct mtk_foe_unbind_info_blk udib1;
-		struct mtk_foe_bind_info_blk bfib1;
-		struct mtk_foe_ipv4_hnapt ipv4_hnapt;
-	};
-};
-
-enum mtk_foe_entry_state {
-	FOE_STATE_INVALID = 0,
-	FOE_STATE_UNBIND = 1,
-	FOE_STATE_BIND = 2,
-	FOE_STATE_FIN = 3
-};
-
-
-#define MTK_RXD4_FOE_ENTRY		GENMASK(13, 0)
-#define MTK_RXD4_CPU_REASON		GENMASK(18, 14)
-#define MTK_RXD4_SRC_PORT		GENMASK(21, 19)
-#define MTK_RXD4_ALG			GENMASK(31, 22)
-
-enum mtk_foe_cpu_reason {
-	MTK_CPU_REASON_TTL_EXCEEDED		= 0x02,
-	MTK_CPU_REASON_OPTION_HEADER		= 0x03,
-	MTK_CPU_REASON_NO_FLOW			= 0x07,
-	MTK_CPU_REASON_IPV4_FRAG		= 0x08,
-	MTK_CPU_REASON_IPV4_DSLITE_FRAG		= 0x09,
-	MTK_CPU_REASON_IPV4_DSLITE_NO_TCP_UDP	= 0x0a,
-	MTK_CPU_REASON_IPV6_6RD_NO_TCP_UDP	= 0x0b,
-	MTK_CPU_REASON_TCP_FIN_SYN_RST		= 0x0c,
-	MTK_CPU_REASON_UN_HIT			= 0x0d,
-	MTK_CPU_REASON_HIT_UNBIND		= 0x0e,
-	MTK_CPU_REASON_HIT_UNBIND_RATE_REACHED	= 0x0f,
-	MTK_CPU_REASON_HIT_BIND_TCP_FIN		= 0x10,
-	MTK_CPU_REASON_HIT_TTL_1		= 0x11,
-	MTK_CPU_REASON_HIT_BIND_VLAN_VIOLATION	= 0x12,
-	MTK_CPU_REASON_KEEPALIVE_UC_OLD_HDR	= 0x13,
-	MTK_CPU_REASON_KEEPALIVE_MC_NEW_HDR	= 0x14,
-	MTK_CPU_REASON_KEEPALIVE_DUP_OLD_HDR	= 0x15,
-	MTK_CPU_REASON_HIT_BIND_FORCE_CPU	= 0x16,
-	MTK_CPU_REASON_TUNNEL_OPTION_HEADER	= 0x17,
-	MTK_CPU_REASON_MULTICAST_TO_CPU		= 0x18,
-	MTK_CPU_REASON_MULTICAST_TO_GMAC1_CPU	= 0x19,
-	MTK_CPU_REASON_HIT_PRE_BIND		= 0x1a,
-	MTK_CPU_REASON_PACKET_SAMPLING		= 0x1b,
-	MTK_CPU_REASON_EXCEED_MTU		= 0x1c,
-	MTK_CPU_REASON_PPE_BYPASS		= 0x1e,
-	MTK_CPU_REASON_INVALID			= 0x1f,
-};
-
-
-/* our table size is 4K */
-#define MTK_PPE_ENTRY_CNT		0x1000
-#define MTK_PPE_TBL_SZ			\
-			(MTK_PPE_ENTRY_CNT * sizeof(struct mtk_foe_entry))
-
-int mtk_ppe_debugfs_init(struct mtk_eth *eth);
-
-