// SPDX-License-Identifier: GPL-2.0 /* Marvell RVU Admin Function driver * * Copyright (C) 2020 Marvell. */ #include <linux/bitfield.h> #include "rvu_struct.h" #include "rvu_reg.h" #include "rvu.h" #include "npc.h" #include "rvu_npc_fs.h" #include "rvu_npc_hash.h" static const char * const npc_flow_names[] = …; bool npc_is_feature_supported(struct rvu *rvu, u64 features, u8 intf) { … } const char *npc_get_field_name(u8 hdr) { … } /* Compute keyword masks and figure out the number of keywords a field * spans in the key. */ static void npc_set_kw_masks(struct npc_mcam *mcam, u8 type, u8 nr_bits, int start_kwi, int offset, u8 intf) { … } /* Helper function to figure out whether field exists in the key */ static bool npc_is_field_present(struct rvu *rvu, enum key_fields type, u8 intf) { … } static bool npc_is_same(struct npc_key_field *input, struct npc_key_field *field) { … } static void npc_set_layer_mdata(struct npc_mcam *mcam, enum key_fields type, u64 cfg, u8 lid, u8 lt, u8 intf) { … } static bool npc_check_overlap_fields(struct npc_key_field *input1, struct npc_key_field *input2) { … } /* Helper function to check whether given field overlaps with any other fields * in the key. Due to limitations on key size and the key extraction profile in * use higher layers can overwrite lower layer's header fields. Hence overlap * needs to be checked. */ static bool npc_check_overlap(struct rvu *rvu, int blkaddr, enum key_fields type, u8 start_lid, u8 intf) { … } static bool npc_check_field(struct rvu *rvu, int blkaddr, enum key_fields type, u8 intf) { … } static void npc_scan_exact_result(struct npc_mcam *mcam, u8 bit_number, u8 key_nibble, u8 intf) { … } static void npc_scan_parse_result(struct npc_mcam *mcam, u8 bit_number, u8 key_nibble, u8 intf) { … } static void npc_handle_multi_layer_fields(struct rvu *rvu, int blkaddr, u8 intf) { … } static void npc_scan_ldata(struct rvu *rvu, int blkaddr, u8 lid, u8 lt, u64 cfg, u8 intf) { … } static void npc_set_features(struct rvu *rvu, int blkaddr, u8 intf) { … } /* Scan key extraction profile and record how fields of our interest * fill the key structure. Also verify Channel and DMAC exists in * key and not overwritten by other header fields. */ static int npc_scan_kex(struct rvu *rvu, int blkaddr, u8 intf) { … } static int npc_scan_verify_kex(struct rvu *rvu, int blkaddr) { … } int npc_flow_steering_init(struct rvu *rvu, int blkaddr) { … } static int npc_check_unsupported_flows(struct rvu *rvu, u64 features, u8 intf) { … } /* npc_update_entry - Based on the masks generated during * the key scanning, updates the given entry with value and * masks for the field of interest. Maximum 16 bytes of a packet * header can be extracted by HW hence lo and hi are sufficient. * When field bytes are less than or equal to 8 then hi should be * 0 for value and mask. * * If exact match of value is required then mask should be all 1's. * If any bits in mask are 0 then corresponding bits in value are * dont care. */ void npc_update_entry(struct rvu *rvu, enum key_fields type, struct mcam_entry *entry, u64 val_lo, u64 val_hi, u64 mask_lo, u64 mask_hi, u8 intf) { … } static void npc_update_ipv6_flow(struct rvu *rvu, struct mcam_entry *entry, u64 features, struct flow_msg *pkt, struct flow_msg *mask, struct rvu_npc_mcam_rule *output, u8 intf) { … } static void npc_update_vlan_features(struct rvu *rvu, struct mcam_entry *entry, u64 features, u8 intf) { … } static void npc_update_flow(struct rvu *rvu, struct mcam_entry *entry, u64 features, struct flow_msg *pkt, struct flow_msg *mask, struct rvu_npc_mcam_rule *output, u8 intf, int blkaddr) { … } static struct rvu_npc_mcam_rule *rvu_mcam_find_rule(struct npc_mcam *mcam, u16 entry) { … } static void rvu_mcam_add_rule(struct npc_mcam *mcam, struct rvu_npc_mcam_rule *rule) { … } static void rvu_mcam_remove_counter_from_rule(struct rvu *rvu, u16 pcifunc, struct rvu_npc_mcam_rule *rule) { … } static void rvu_mcam_add_counter_to_rule(struct rvu *rvu, u16 pcifunc, struct rvu_npc_mcam_rule *rule, struct npc_install_flow_rsp *rsp) { … } static int npc_mcast_update_action_index(struct rvu *rvu, struct npc_install_flow_req *req, u64 op, void *action) { … } static int npc_update_rx_entry(struct rvu *rvu, struct rvu_pfvf *pfvf, struct mcam_entry *entry, struct npc_install_flow_req *req, u16 target, bool pf_set_vfs_mac) { … } static int npc_update_tx_entry(struct rvu *rvu, struct rvu_pfvf *pfvf, struct mcam_entry *entry, struct npc_install_flow_req *req, u16 target) { … } static int npc_install_flow(struct rvu *rvu, int blkaddr, u16 target, int nixlf, struct rvu_pfvf *pfvf, struct npc_install_flow_req *req, struct npc_install_flow_rsp *rsp, bool enable, bool pf_set_vfs_mac) { … } int rvu_mbox_handler_npc_install_flow(struct rvu *rvu, struct npc_install_flow_req *req, struct npc_install_flow_rsp *rsp) { … } static int npc_delete_flow(struct rvu *rvu, struct rvu_npc_mcam_rule *rule, u16 pcifunc) { … } int rvu_mbox_handler_npc_delete_flow(struct rvu *rvu, struct npc_delete_flow_req *req, struct npc_delete_flow_rsp *rsp) { … } static int npc_update_dmac_value(struct rvu *rvu, int npcblkaddr, struct rvu_npc_mcam_rule *rule, struct rvu_pfvf *pfvf) { … } void npc_mcam_enable_flows(struct rvu *rvu, u16 target) { … } void npc_mcam_disable_flows(struct rvu *rvu, u16 target) { … } /* single drop on non hit rule starting from 0th index. This an extension * to RPM mac filter to support more rules. */ int npc_install_mcam_drop_rule(struct rvu *rvu, int mcam_idx, u16 *counter_idx, u64 chan_val, u64 chan_mask, u64 exact_val, u64 exact_mask, u64 bcast_mcast_val, u64 bcast_mcast_mask) { … } int rvu_mbox_handler_npc_get_field_status(struct rvu *rvu, struct npc_get_field_status_req *req, struct npc_get_field_status_rsp *rsp) { … }
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