| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Header Parser definitions for Marvell PPv2 Network Controller |
| * |
| * Copyright (C) 2014 Marvell |
| * |
| * Marcin Wojtas <mw@semihalf.com> |
| */ |
| #ifndef _MVPP2_PRS_H_ |
| #define _MVPP2_PRS_H_ |
| |
| #include <linux/kernel.h> |
| #include <linux/netdevice.h> |
| #include <linux/platform_device.h> |
| |
| #include "mvpp2.h" |
| |
| /* Parser constants */ |
| #define MVPP2_PRS_TCAM_SRAM_SIZE 256 |
| #define MVPP2_PRS_TCAM_WORDS 6 |
| #define MVPP2_PRS_SRAM_WORDS 4 |
| #define MVPP2_PRS_FLOW_ID_SIZE 64 |
| #define MVPP2_PRS_FLOW_ID_MASK 0x3f |
| #define MVPP2_PRS_TCAM_ENTRY_INVALID 1 |
| #define MVPP2_PRS_TCAM_DSA_TAGGED_BIT BIT(5) |
| #define MVPP2_PRS_IPV4_HEAD 0x40 |
| #define MVPP2_PRS_IPV4_HEAD_MASK 0xf0 |
| #define MVPP2_PRS_IPV4_MC 0xe0 |
| #define MVPP2_PRS_IPV4_MC_MASK 0xf0 |
| #define MVPP2_PRS_IPV4_BC_MASK 0xff |
| #define MVPP2_PRS_IPV4_IHL_MIN 0x5 |
| #define MVPP2_PRS_IPV4_IHL_MAX 0xf |
| #define MVPP2_PRS_IPV4_IHL_MASK 0xf |
| #define MVPP2_PRS_IPV6_MC 0xff |
| #define MVPP2_PRS_IPV6_MC_MASK 0xff |
| #define MVPP2_PRS_IPV6_HOP_MASK 0xff |
| #define MVPP2_PRS_TCAM_PROTO_MASK 0xff |
| #define MVPP2_PRS_TCAM_PROTO_MASK_L 0x3f |
| #define MVPP2_PRS_DBL_VLANS_MAX 100 |
| #define MVPP2_PRS_CAST_MASK BIT(0) |
| #define MVPP2_PRS_MCAST_VAL BIT(0) |
| #define MVPP2_PRS_UCAST_VAL 0x0 |
| |
| /* Tcam structure: |
| * - lookup ID - 4 bits |
| * - port ID - 1 byte |
| * - additional information - 1 byte |
| * - header data - 8 bytes |
| * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(5)->(0). |
| */ |
| #define MVPP2_PRS_AI_BITS 8 |
| #define MVPP2_PRS_AI_MASK 0xff |
| #define MVPP2_PRS_PORT_MASK 0xff |
| #define MVPP2_PRS_LU_MASK 0xf |
| |
| /* TCAM entries in registers are accessed using 16 data bits + 16 enable bits */ |
| #define MVPP2_PRS_BYTE_TO_WORD(byte) ((byte) / 2) |
| #define MVPP2_PRS_BYTE_IN_WORD(byte) ((byte) % 2) |
| |
| #define MVPP2_PRS_TCAM_EN(data) ((data) << 16) |
| #define MVPP2_PRS_TCAM_AI_WORD 4 |
| #define MVPP2_PRS_TCAM_AI(ai) (ai) |
| #define MVPP2_PRS_TCAM_AI_EN(ai) MVPP2_PRS_TCAM_EN(MVPP2_PRS_TCAM_AI(ai)) |
| #define MVPP2_PRS_TCAM_PORT_WORD 4 |
| #define MVPP2_PRS_TCAM_PORT(p) ((p) << 8) |
| #define MVPP2_PRS_TCAM_PORT_EN(p) MVPP2_PRS_TCAM_EN(MVPP2_PRS_TCAM_PORT(p)) |
| #define MVPP2_PRS_TCAM_LU_WORD 5 |
| #define MVPP2_PRS_TCAM_LU(lu) (lu) |
| #define MVPP2_PRS_TCAM_LU_EN(lu) MVPP2_PRS_TCAM_EN(MVPP2_PRS_TCAM_LU(lu)) |
| #define MVPP2_PRS_TCAM_INV_WORD 5 |
| |
| #define MVPP2_PRS_VID_TCAM_BYTE 2 |
| |
| /* TCAM range for unicast and multicast filtering. We have 25 entries per port, |
| * with 4 dedicated to UC filtering and the rest to multicast filtering. |
| * Additionnally we reserve one entry for the broadcast address, and one for |
| * each port's own address. |
| */ |
| #define MVPP2_PRS_MAC_UC_MC_FILT_MAX 25 |
| #define MVPP2_PRS_MAC_RANGE_SIZE 80 |
| |
| /* Number of entries per port dedicated to UC and MC filtering */ |
| #define MVPP2_PRS_MAC_UC_FILT_MAX 4 |
| #define MVPP2_PRS_MAC_MC_FILT_MAX (MVPP2_PRS_MAC_UC_MC_FILT_MAX - \ |
| MVPP2_PRS_MAC_UC_FILT_MAX) |
| |
| /* There is a TCAM range reserved for VLAN filtering entries, range size is 33 |
| * 10 VLAN ID filter entries per port |
| * 1 default VLAN filter entry per port |
| * It is assumed that there are 3 ports for filter, not including loopback port |
| */ |
| #define MVPP2_PRS_VLAN_FILT_MAX 11 |
| #define MVPP2_PRS_VLAN_FILT_RANGE_SIZE 33 |
| |
| #define MVPP2_PRS_VLAN_FILT_MAX_ENTRY (MVPP2_PRS_VLAN_FILT_MAX - 2) |
| #define MVPP2_PRS_VLAN_FILT_DFLT_ENTRY (MVPP2_PRS_VLAN_FILT_MAX - 1) |
| |
| /* Tcam entries ID */ |
| #define MVPP2_PE_DROP_ALL 0 |
| #define MVPP2_PE_FIRST_FREE_TID 1 |
| |
| /* MAC filtering range */ |
| #define MVPP2_PE_MAC_RANGE_END (MVPP2_PE_VID_FILT_RANGE_START - 1) |
| #define MVPP2_PE_MAC_RANGE_START (MVPP2_PE_MAC_RANGE_END - \ |
| MVPP2_PRS_MAC_RANGE_SIZE + 1) |
| /* VLAN filtering range */ |
| #define MVPP2_PE_VID_FILT_RANGE_END (MVPP2_PRS_TCAM_SRAM_SIZE - 32) |
| #define MVPP2_PE_VID_FILT_RANGE_START (MVPP2_PE_VID_FILT_RANGE_END - \ |
| MVPP2_PRS_VLAN_FILT_RANGE_SIZE + 1) |
| #define MVPP2_PE_LAST_FREE_TID (MVPP2_PE_MAC_RANGE_START - 1) |
| #define MVPP2_PE_MH_SKIP_PRS (MVPP2_PRS_TCAM_SRAM_SIZE - 31) |
| #define MVPP2_PE_IP6_EXT_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 30) |
| #define MVPP2_PE_IP6_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 29) |
| #define MVPP2_PE_IP4_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 28) |
| #define MVPP2_PE_LAST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 27) |
| #define MVPP2_PE_FIRST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 22) |
| #define MVPP2_PE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 21) |
| #define MVPP2_PE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 20) |
| #define MVPP2_PE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 19) |
| #define MVPP2_PE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 18) |
| #define MVPP2_PE_ETYPE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 17) |
| #define MVPP2_PE_ETYPE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 16) |
| #define MVPP2_PE_ETYPE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 15) |
| #define MVPP2_PE_ETYPE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 14) |
| #define MVPP2_PE_MH_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 13) |
| #define MVPP2_PE_DSA_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 12) |
| #define MVPP2_PE_IP6_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 11) |
| #define MVPP2_PE_IP4_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 10) |
| #define MVPP2_PE_ETH_TYPE_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 9) |
| #define MVPP2_PE_VID_FLTR_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 8) |
| #define MVPP2_PE_VID_EDSA_FLTR_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 7) |
| #define MVPP2_PE_VLAN_DBL (MVPP2_PRS_TCAM_SRAM_SIZE - 6) |
| #define MVPP2_PE_VLAN_NONE (MVPP2_PRS_TCAM_SRAM_SIZE - 5) |
| #define MVPP2_PE_FC_DROP (MVPP2_PRS_TCAM_SRAM_SIZE - 4) |
| #define MVPP2_PE_MAC_MC_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 3) |
| #define MVPP2_PE_MAC_UC_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 2) |
| #define MVPP2_PE_MAC_NON_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 1) |
| |
| #define MVPP2_PRS_VID_PORT_FIRST(port) (MVPP2_PE_VID_FILT_RANGE_START + \ |
| ((port) * MVPP2_PRS_VLAN_FILT_MAX)) |
| #define MVPP2_PRS_VID_PORT_LAST(port) (MVPP2_PRS_VID_PORT_FIRST(port) \ |
| + MVPP2_PRS_VLAN_FILT_MAX_ENTRY) |
| /* Index of default vid filter for given port */ |
| #define MVPP2_PRS_VID_PORT_DFLT(port) (MVPP2_PRS_VID_PORT_FIRST(port) \ |
| + MVPP2_PRS_VLAN_FILT_DFLT_ENTRY) |
| |
| /* Sram structure |
| * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(3)->(0). |
| */ |
| #define MVPP2_PRS_SRAM_RI_OFFS 0 |
| #define MVPP2_PRS_SRAM_RI_WORD 0 |
| #define MVPP2_PRS_SRAM_RI_CTRL_OFFS 32 |
| #define MVPP2_PRS_SRAM_RI_CTRL_WORD 1 |
| #define MVPP2_PRS_SRAM_RI_CTRL_BITS 32 |
| #define MVPP2_PRS_SRAM_SHIFT_OFFS 64 |
| #define MVPP2_PRS_SRAM_SHIFT_SIGN_BIT 72 |
| #define MVPP2_PRS_SRAM_SHIFT_MASK 0xff |
| #define MVPP2_PRS_SRAM_UDF_OFFS 73 |
| #define MVPP2_PRS_SRAM_UDF_BITS 8 |
| #define MVPP2_PRS_SRAM_UDF_MASK 0xff |
| #define MVPP2_PRS_SRAM_UDF_SIGN_BIT 81 |
| #define MVPP2_PRS_SRAM_UDF_TYPE_OFFS 82 |
| #define MVPP2_PRS_SRAM_UDF_TYPE_MASK 0x7 |
| #define MVPP2_PRS_SRAM_UDF_TYPE_L3 1 |
| #define MVPP2_PRS_SRAM_UDF_TYPE_L4 4 |
| #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS 85 |
| #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK 0x3 |
| #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD 1 |
| #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP4_ADD 2 |
| #define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP6_ADD 3 |
| #define MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS 87 |
| #define MVPP2_PRS_SRAM_OP_SEL_UDF_BITS 2 |
| #define MVPP2_PRS_SRAM_OP_SEL_UDF_MASK 0x3 |
| #define MVPP2_PRS_SRAM_OP_SEL_UDF_ADD 0 |
| #define MVPP2_PRS_SRAM_OP_SEL_UDF_IP4_ADD 2 |
| #define MVPP2_PRS_SRAM_OP_SEL_UDF_IP6_ADD 3 |
| #define MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS 89 |
| #define MVPP2_PRS_SRAM_AI_OFFS 90 |
| #define MVPP2_PRS_SRAM_AI_CTRL_OFFS 98 |
| #define MVPP2_PRS_SRAM_AI_CTRL_BITS 8 |
| #define MVPP2_PRS_SRAM_AI_MASK 0xff |
| #define MVPP2_PRS_SRAM_NEXT_LU_OFFS 106 |
| #define MVPP2_PRS_SRAM_NEXT_LU_MASK 0xf |
| #define MVPP2_PRS_SRAM_LU_DONE_BIT 110 |
| #define MVPP2_PRS_SRAM_LU_GEN_BIT 111 |
| |
| /* Sram result info bits assignment */ |
| #define MVPP2_PRS_RI_MAC_ME_MASK 0x1 |
| #define MVPP2_PRS_RI_DSA_MASK 0x2 |
| #define MVPP2_PRS_RI_VLAN_MASK (BIT(2) | BIT(3)) |
| #define MVPP2_PRS_RI_VLAN_NONE 0x0 |
| #define MVPP2_PRS_RI_VLAN_SINGLE BIT(2) |
| #define MVPP2_PRS_RI_VLAN_DOUBLE BIT(3) |
| #define MVPP2_PRS_RI_VLAN_TRIPLE (BIT(2) | BIT(3)) |
| #define MVPP2_PRS_RI_CPU_CODE_MASK 0x70 |
| #define MVPP2_PRS_RI_CPU_CODE_RX_SPEC BIT(4) |
| #define MVPP2_PRS_RI_L2_CAST_MASK (BIT(9) | BIT(10)) |
| #define MVPP2_PRS_RI_L2_UCAST 0x0 |
| #define MVPP2_PRS_RI_L2_MCAST BIT(9) |
| #define MVPP2_PRS_RI_L2_BCAST BIT(10) |
| #define MVPP2_PRS_RI_PPPOE_MASK 0x800 |
| #define MVPP2_PRS_RI_L3_PROTO_MASK (BIT(12) | BIT(13) | BIT(14)) |
| #define MVPP2_PRS_RI_L3_UN 0x0 |
| #define MVPP2_PRS_RI_L3_IP4 BIT(12) |
| #define MVPP2_PRS_RI_L3_IP4_OPT BIT(13) |
| #define MVPP2_PRS_RI_L3_IP4_OTHER (BIT(12) | BIT(13)) |
| #define MVPP2_PRS_RI_L3_IP6 BIT(14) |
| #define MVPP2_PRS_RI_L3_IP6_EXT (BIT(12) | BIT(14)) |
| #define MVPP2_PRS_RI_L3_ARP (BIT(13) | BIT(14)) |
| #define MVPP2_PRS_RI_L3_ADDR_MASK (BIT(15) | BIT(16)) |
| #define MVPP2_PRS_RI_L3_UCAST 0x0 |
| #define MVPP2_PRS_RI_L3_MCAST BIT(15) |
| #define MVPP2_PRS_RI_L3_BCAST (BIT(15) | BIT(16)) |
| #define MVPP2_PRS_RI_IP_FRAG_MASK 0x20000 |
| #define MVPP2_PRS_RI_IP_FRAG_TRUE BIT(17) |
| #define MVPP2_PRS_RI_UDF3_MASK 0x300000 |
| #define MVPP2_PRS_RI_UDF3_RX_SPECIAL BIT(21) |
| #define MVPP2_PRS_RI_L4_PROTO_MASK 0x1c00000 |
| #define MVPP2_PRS_RI_L4_TCP BIT(22) |
| #define MVPP2_PRS_RI_L4_UDP BIT(23) |
| #define MVPP2_PRS_RI_L4_OTHER (BIT(22) | BIT(23)) |
| #define MVPP2_PRS_RI_UDF7_MASK 0x60000000 |
| #define MVPP2_PRS_RI_UDF7_IP6_LITE BIT(29) |
| #define MVPP2_PRS_RI_DROP_MASK 0x80000000 |
| |
| #define MVPP2_PRS_IP_MASK (MVPP2_PRS_RI_L3_PROTO_MASK | \ |
| MVPP2_PRS_RI_IP_FRAG_MASK | \ |
| MVPP2_PRS_RI_L4_PROTO_MASK) |
| |
| /* Sram additional info bits assignment */ |
| #define MVPP2_PRS_IPV4_DIP_AI_BIT BIT(0) |
| #define MVPP2_PRS_IPV6_NO_EXT_AI_BIT BIT(0) |
| #define MVPP2_PRS_IPV6_EXT_AI_BIT BIT(1) |
| #define MVPP2_PRS_IPV6_EXT_AH_AI_BIT BIT(2) |
| #define MVPP2_PRS_IPV6_EXT_AH_LEN_AI_BIT BIT(3) |
| #define MVPP2_PRS_IPV6_EXT_AH_L4_AI_BIT BIT(4) |
| #define MVPP2_PRS_SINGLE_VLAN_AI 0 |
| #define MVPP2_PRS_DBL_VLAN_AI_BIT BIT(7) |
| #define MVPP2_PRS_EDSA_VID_AI_BIT BIT(0) |
| |
| /* DSA/EDSA type */ |
| #define MVPP2_PRS_TAGGED true |
| #define MVPP2_PRS_UNTAGGED false |
| #define MVPP2_PRS_EDSA true |
| #define MVPP2_PRS_DSA false |
| |
| /* MAC entries, shadow udf */ |
| enum mvpp2_prs_udf { |
| MVPP2_PRS_UDF_MAC_DEF, |
| MVPP2_PRS_UDF_MAC_RANGE, |
| MVPP2_PRS_UDF_L2_DEF, |
| MVPP2_PRS_UDF_L2_DEF_COPY, |
| MVPP2_PRS_UDF_L2_USER, |
| }; |
| |
| /* Lookup ID */ |
| enum mvpp2_prs_lookup { |
| MVPP2_PRS_LU_MH, |
| MVPP2_PRS_LU_MAC, |
| MVPP2_PRS_LU_DSA, |
| MVPP2_PRS_LU_VLAN, |
| MVPP2_PRS_LU_VID, |
| MVPP2_PRS_LU_L2, |
| MVPP2_PRS_LU_PPPOE, |
| MVPP2_PRS_LU_IP4, |
| MVPP2_PRS_LU_IP6, |
| MVPP2_PRS_LU_FLOWS, |
| MVPP2_PRS_LU_LAST, |
| }; |
| |
| struct mvpp2_prs_entry { |
| u32 index; |
| u32 tcam[MVPP2_PRS_TCAM_WORDS]; |
| u32 sram[MVPP2_PRS_SRAM_WORDS]; |
| }; |
| |
| struct mvpp2_prs_result_info { |
| u32 ri; |
| u32 ri_mask; |
| }; |
| |
| struct mvpp2_prs_shadow { |
| bool valid; |
| bool finish; |
| |
| /* Lookup ID */ |
| int lu; |
| |
| /* User defined offset */ |
| int udf; |
| |
| /* Result info */ |
| u32 ri; |
| u32 ri_mask; |
| }; |
| |
| int mvpp2_prs_default_init(struct platform_device *pdev, struct mvpp2 *priv); |
| |
| int mvpp2_prs_init_from_hw(struct mvpp2 *priv, struct mvpp2_prs_entry *pe, |
| int tid); |
| |
| unsigned int mvpp2_prs_tcam_port_map_get(struct mvpp2_prs_entry *pe); |
| |
| void mvpp2_prs_tcam_data_byte_get(struct mvpp2_prs_entry *pe, |
| unsigned int offs, unsigned char *byte, |
| unsigned char *enable); |
| |
| int mvpp2_prs_mac_da_accept(struct mvpp2_port *port, const u8 *da, bool add); |
| |
| int mvpp2_prs_tag_mode_set(struct mvpp2 *priv, int port, int type); |
| |
| int mvpp2_prs_add_flow(struct mvpp2 *priv, int flow, u32 ri, u32 ri_mask); |
| |
| int mvpp2_prs_def_flow(struct mvpp2_port *port); |
| |
| void mvpp2_prs_vid_enable_filtering(struct mvpp2_port *port); |
| |
| void mvpp2_prs_vid_disable_filtering(struct mvpp2_port *port); |
| |
| int mvpp2_prs_vid_entry_add(struct mvpp2_port *port, u16 vid); |
| |
| void mvpp2_prs_vid_entry_remove(struct mvpp2_port *port, u16 vid); |
| |
| void mvpp2_prs_vid_remove_all(struct mvpp2_port *port); |
| |
| void mvpp2_prs_mac_promisc_set(struct mvpp2 *priv, int port, |
| enum mvpp2_prs_l2_cast l2_cast, bool add); |
| |
| void mvpp2_prs_mac_del_all(struct mvpp2_port *port); |
| |
| int mvpp2_prs_update_mac_da(struct net_device *dev, const u8 *da); |
| |
| int mvpp2_prs_hits(struct mvpp2 *priv, int index); |
| |
| #endif |
