// SPDX-License-Identifier: GPL-2.0 /* * Header Parser helpers for Marvell PPv2 Network Controller * * Copyright (C) 2014 Marvell * * Marcin Wojtas <[email protected]> */ #include <linux/kernel.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/platform_device.h> #include <uapi/linux/ppp_defs.h> #include <net/ip.h> #include <net/ipv6.h> #include "mvpp2.h" #include "mvpp2_prs.h" /* Update parser tcam and sram hw entries */ static int mvpp2_prs_hw_write(struct mvpp2 *priv, struct mvpp2_prs_entry *pe) { … } /* Initialize tcam entry from hw */ int mvpp2_prs_init_from_hw(struct mvpp2 *priv, struct mvpp2_prs_entry *pe, int tid) { … } /* Invalidate tcam hw entry */ static void mvpp2_prs_hw_inv(struct mvpp2 *priv, int index) { … } /* Enable shadow table entry and set its lookup ID */ static void mvpp2_prs_shadow_set(struct mvpp2 *priv, int index, int lu) { … } /* Update ri fields in shadow table entry */ static void mvpp2_prs_shadow_ri_set(struct mvpp2 *priv, int index, unsigned int ri, unsigned int ri_mask) { … } /* Update lookup field in tcam sw entry */ static void mvpp2_prs_tcam_lu_set(struct mvpp2_prs_entry *pe, unsigned int lu) { … } /* Update mask for single port in tcam sw entry */ static void mvpp2_prs_tcam_port_set(struct mvpp2_prs_entry *pe, unsigned int port, bool add) { … } /* Update port map in tcam sw entry */ static void mvpp2_prs_tcam_port_map_set(struct mvpp2_prs_entry *pe, unsigned int ports) { … } /* Obtain port map from tcam sw entry */ unsigned int mvpp2_prs_tcam_port_map_get(struct mvpp2_prs_entry *pe) { … } /* Set byte of data and its enable bits in tcam sw entry */ static void mvpp2_prs_tcam_data_byte_set(struct mvpp2_prs_entry *pe, unsigned int offs, unsigned char byte, unsigned char enable) { … } /* Get byte of data and its enable bits from tcam sw entry */ void mvpp2_prs_tcam_data_byte_get(struct mvpp2_prs_entry *pe, unsigned int offs, unsigned char *byte, unsigned char *enable) { … } /* Compare tcam data bytes with a pattern */ static bool mvpp2_prs_tcam_data_cmp(struct mvpp2_prs_entry *pe, int offs, u16 data) { … } /* Update ai bits in tcam sw entry */ static void mvpp2_prs_tcam_ai_update(struct mvpp2_prs_entry *pe, unsigned int bits, unsigned int enable) { … } /* Get ai bits from tcam sw entry */ static int mvpp2_prs_tcam_ai_get(struct mvpp2_prs_entry *pe) { … } /* Set ethertype in tcam sw entry */ static void mvpp2_prs_match_etype(struct mvpp2_prs_entry *pe, int offset, unsigned short ethertype) { … } /* Set vid in tcam sw entry */ static void mvpp2_prs_match_vid(struct mvpp2_prs_entry *pe, int offset, unsigned short vid) { … } /* Set bits in sram sw entry */ static void mvpp2_prs_sram_bits_set(struct mvpp2_prs_entry *pe, int bit_num, u32 val) { … } /* Clear bits in sram sw entry */ static void mvpp2_prs_sram_bits_clear(struct mvpp2_prs_entry *pe, int bit_num, u32 val) { … } /* Update ri bits in sram sw entry */ static void mvpp2_prs_sram_ri_update(struct mvpp2_prs_entry *pe, unsigned int bits, unsigned int mask) { … } /* Obtain ri bits from sram sw entry */ static int mvpp2_prs_sram_ri_get(struct mvpp2_prs_entry *pe) { … } /* Update ai bits in sram sw entry */ static void mvpp2_prs_sram_ai_update(struct mvpp2_prs_entry *pe, unsigned int bits, unsigned int mask) { … } /* Read ai bits from sram sw entry */ static int mvpp2_prs_sram_ai_get(struct mvpp2_prs_entry *pe) { … } /* In sram sw entry set lookup ID field of the tcam key to be used in the next * lookup interation */ static void mvpp2_prs_sram_next_lu_set(struct mvpp2_prs_entry *pe, unsigned int lu) { … } /* In the sram sw entry set sign and value of the next lookup offset * and the offset value generated to the classifier */ static void mvpp2_prs_sram_shift_set(struct mvpp2_prs_entry *pe, int shift, unsigned int op) { … } /* In the sram sw entry set sign and value of the user defined offset * generated to the classifier */ static void mvpp2_prs_sram_offset_set(struct mvpp2_prs_entry *pe, unsigned int type, int offset, unsigned int op) { … } /* Find parser flow entry */ static int mvpp2_prs_flow_find(struct mvpp2 *priv, int flow) { … } /* Return first free tcam index, seeking from start to end */ static int mvpp2_prs_tcam_first_free(struct mvpp2 *priv, unsigned char start, unsigned char end) { … } /* Drop flow control pause frames */ static void mvpp2_prs_drop_fc(struct mvpp2 *priv) { … } /* Enable/disable dropping all mac da's */ static void mvpp2_prs_mac_drop_all_set(struct mvpp2 *priv, int port, bool add) { … } /* Set port to unicast or multicast promiscuous mode */ void mvpp2_prs_mac_promisc_set(struct mvpp2 *priv, int port, enum mvpp2_prs_l2_cast l2_cast, bool add) { … } /* Set entry for dsa packets */ static void mvpp2_prs_dsa_tag_set(struct mvpp2 *priv, int port, bool add, bool tagged, bool extend) { … } /* Set entry for dsa ethertype */ static void mvpp2_prs_dsa_tag_ethertype_set(struct mvpp2 *priv, int port, bool add, bool tagged, bool extend) { … } /* Search for existing single/triple vlan entry */ static int mvpp2_prs_vlan_find(struct mvpp2 *priv, unsigned short tpid, int ai) { … } /* Add/update single/triple vlan entry */ static int mvpp2_prs_vlan_add(struct mvpp2 *priv, unsigned short tpid, int ai, unsigned int port_map) { … } /* Get first free double vlan ai number */ static int mvpp2_prs_double_vlan_ai_free_get(struct mvpp2 *priv) { … } /* Search for existing double vlan entry */ static int mvpp2_prs_double_vlan_find(struct mvpp2 *priv, unsigned short tpid1, unsigned short tpid2) { … } /* Add or update double vlan entry */ static int mvpp2_prs_double_vlan_add(struct mvpp2 *priv, unsigned short tpid1, unsigned short tpid2, unsigned int port_map) { … } /* IPv4 header parsing for fragmentation and L4 offset */ static int mvpp2_prs_ip4_proto(struct mvpp2 *priv, unsigned short proto, unsigned int ri, unsigned int ri_mask) { … } /* IPv4 L3 multicast or broadcast */ static int mvpp2_prs_ip4_cast(struct mvpp2 *priv, unsigned short l3_cast) { … } /* Set entries for protocols over IPv6 */ static int mvpp2_prs_ip6_proto(struct mvpp2 *priv, unsigned short proto, unsigned int ri, unsigned int ri_mask) { … } /* IPv6 L3 multicast entry */ static int mvpp2_prs_ip6_cast(struct mvpp2 *priv, unsigned short l3_cast) { … } /* Parser per-port initialization */ static void mvpp2_prs_hw_port_init(struct mvpp2 *priv, int port, int lu_first, int lu_max, int offset) { … } /* Default flow entries initialization for all ports */ static void mvpp2_prs_def_flow_init(struct mvpp2 *priv) { … } /* Set default entry for Marvell Header field */ static void mvpp2_prs_mh_init(struct mvpp2 *priv) { … } /* Set default entires (place holder) for promiscuous, non-promiscuous and * multicast MAC addresses */ static void mvpp2_prs_mac_init(struct mvpp2 *priv) { … } /* Set default entries for various types of dsa packets */ static void mvpp2_prs_dsa_init(struct mvpp2 *priv) { … } /* Initialize parser entries for VID filtering */ static void mvpp2_prs_vid_init(struct mvpp2 *priv) { … } /* Match basic ethertypes */ static int mvpp2_prs_etype_init(struct mvpp2 *priv) { … } /* Configure vlan entries and detect up to 2 successive VLAN tags. * Possible options: * 0x8100, 0x88A8 * 0x8100, 0x8100 * 0x8100 * 0x88A8 */ static int mvpp2_prs_vlan_init(struct platform_device *pdev, struct mvpp2 *priv) { … } /* Set entries for PPPoE ethertype */ static int mvpp2_prs_pppoe_init(struct mvpp2 *priv) { … } /* Initialize entries for IPv4 */ static int mvpp2_prs_ip4_init(struct mvpp2 *priv) { … } /* Initialize entries for IPv6 */ static int mvpp2_prs_ip6_init(struct mvpp2 *priv) { … } /* Find tcam entry with matched pair <vid,port> */ static int mvpp2_prs_vid_range_find(struct mvpp2_port *port, u16 vid, u16 mask) { … } /* Write parser entry for VID filtering */ int mvpp2_prs_vid_entry_add(struct mvpp2_port *port, u16 vid) { … } /* Write parser entry for VID filtering */ void mvpp2_prs_vid_entry_remove(struct mvpp2_port *port, u16 vid) { … } /* Remove all existing VID filters on this port */ void mvpp2_prs_vid_remove_all(struct mvpp2_port *port) { … } /* Remove VID filering entry for this port */ void mvpp2_prs_vid_disable_filtering(struct mvpp2_port *port) { … } /* Add guard entry that drops packets when no VID is matched on this port */ void mvpp2_prs_vid_enable_filtering(struct mvpp2_port *port) { … } /* Parser default initialization */ int mvpp2_prs_default_init(struct platform_device *pdev, struct mvpp2 *priv) { … } /* Compare MAC DA with tcam entry data */ static bool mvpp2_prs_mac_range_equals(struct mvpp2_prs_entry *pe, const u8 *da, unsigned char *mask) { … } /* Find tcam entry with matched pair <MAC DA, port> */ static int mvpp2_prs_mac_da_range_find(struct mvpp2 *priv, int pmap, const u8 *da, unsigned char *mask, int udf_type) { … } /* Update parser's mac da entry */ int mvpp2_prs_mac_da_accept(struct mvpp2_port *port, const u8 *da, bool add) { … } int mvpp2_prs_update_mac_da(struct net_device *dev, const u8 *da) { … } void mvpp2_prs_mac_del_all(struct mvpp2_port *port) { … } 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) { … } /* Set prs flow for the port */ int mvpp2_prs_def_flow(struct mvpp2_port *port) { … } int mvpp2_prs_hits(struct mvpp2 *priv, int index) { … }
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