diff options
Diffstat (limited to 'target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_offload.h')
-rw-r--r-- | target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_offload.h | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_offload.h b/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_offload.h new file mode 100644 index 0000000000..f714c90f92 --- /dev/null +++ b/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/mtk_offload.h @@ -0,0 +1,260 @@ +/* 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); + + |