LXR linux/drivers/net/ethernet/aquantia/atlantic/aq

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/* Atlantic Network Driver
   3 * Copyright (C) 2020 Marvell International Ltd.
   4 */
   5
   6#ifndef AQ_MACSEC_H
   7#define AQ_MACSEC_H
   8
   9#include <linux/netdevice.h>
  10#if IS_ENABLED(CONFIG_MACSEC)
  11
  12#include "net/macsec.h"
  13
  14struct aq_nic_s;
  15
  16#define AQ_MACSEC_MAX_SC 32
  17#define AQ_MACSEC_MAX_SA 32
  18
  19enum aq_macsec_sc_sa {
  20        aq_macsec_sa_sc_4sa_8sc,
  21        aq_macsec_sa_sc_not_used,
  22        aq_macsec_sa_sc_2sa_16sc,
  23        aq_macsec_sa_sc_1sa_32sc,
  24};
  25
  26struct aq_macsec_common_stats {
  27        /* Ingress Common Counters */
  28        struct {
  29                u64 ctl_pkts;
  30                u64 tagged_miss_pkts;
  31                u64 untagged_miss_pkts;
  32                u64 notag_pkts;
  33                u64 untagged_pkts;
  34                u64 bad_tag_pkts;
  35                u64 no_sci_pkts;
  36                u64 unknown_sci_pkts;
  37                u64 ctrl_prt_pass_pkts;
  38                u64 unctrl_prt_pass_pkts;
  39                u64 ctrl_prt_fail_pkts;
  40                u64 unctrl_prt_fail_pkts;
  41                u64 too_long_pkts;
  42                u64 igpoc_ctl_pkts;
  43                u64 ecc_error_pkts;
  44                u64 unctrl_hit_drop_redir;
  45        } in;
  46
  47        /* Egress Common Counters */
  48        struct {
  49                u64 ctl_pkts;
  50                u64 unknown_sa_pkts;
  51                u64 untagged_pkts;
  52                u64 too_long;
  53                u64 ecc_error_pkts;
  54                u64 unctrl_hit_drop_redir;
  55        } out;
  56};
  57
  58/* Ingress SA Counters */
  59struct aq_macsec_rx_sa_stats {
  60        u64 untagged_hit_pkts;
  61        u64 ctrl_hit_drop_redir_pkts;
  62        u64 not_using_sa;
  63        u64 unused_sa;
  64        u64 not_valid_pkts;
  65        u64 invalid_pkts;
  66        u64 ok_pkts;
  67        u64 late_pkts;
  68        u64 delayed_pkts;
  69        u64 unchecked_pkts;
  70        u64 validated_octets;
  71        u64 decrypted_octets;
  72};
  73
  74/* Egress SA Counters */
  75struct aq_macsec_tx_sa_stats {
  76        u64 sa_hit_drop_redirect;
  77        u64 sa_protected2_pkts;
  78        u64 sa_protected_pkts;
  79        u64 sa_encrypted_pkts;
  80};
  81
  82/* Egress SC Counters */
  83struct aq_macsec_tx_sc_stats {
  84        u64 sc_protected_pkts;
  85        u64 sc_encrypted_pkts;
  86        u64 sc_protected_octets;
  87        u64 sc_encrypted_octets;
  88};
  89
  90struct aq_macsec_txsc {
  91        u32 hw_sc_idx;
  92        unsigned long tx_sa_idx_busy;
  93        const struct macsec_secy *sw_secy;
  94        u8 tx_sa_key[MACSEC_NUM_AN][MACSEC_MAX_KEY_LEN];
  95        struct aq_macsec_tx_sc_stats stats;
  96        struct aq_macsec_tx_sa_stats tx_sa_stats[MACSEC_NUM_AN];
  97};
  98
  99struct aq_macsec_rxsc {
 100        u32 hw_sc_idx;
 101        unsigned long rx_sa_idx_busy;
 102        const struct macsec_secy *sw_secy;
 103        const struct macsec_rx_sc *sw_rxsc;
 104        u8 rx_sa_key[MACSEC_NUM_AN][MACSEC_MAX_KEY_LEN];
 105        struct aq_macsec_rx_sa_stats rx_sa_stats[MACSEC_NUM_AN];
 106};
 107
 108struct aq_macsec_cfg {
 109        enum aq_macsec_sc_sa sc_sa;
 110        /* Egress channel configuration */
 111        unsigned long txsc_idx_busy;
 112        struct aq_macsec_txsc aq_txsc[AQ_MACSEC_MAX_SC];
 113        /* Ingress channel configuration */
 114        unsigned long rxsc_idx_busy;
 115        struct aq_macsec_rxsc aq_rxsc[AQ_MACSEC_MAX_SC];
 116        /* Statistics / counters */
 117        struct aq_macsec_common_stats stats;
 118};
 119
 120extern const struct macsec_ops aq_macsec_ops;
 121
 122int aq_macsec_init(struct aq_nic_s *nic);
 123void aq_macsec_free(struct aq_nic_s *nic);
 124int aq_macsec_enable(struct aq_nic_s *nic);
 125void aq_macsec_work(struct aq_nic_s *nic);
 126u64 *aq_macsec_get_stats(struct aq_nic_s *nic, u64 *data);
 127int aq_macsec_rx_sa_cnt(struct aq_nic_s *nic);
 128int aq_macsec_tx_sc_cnt(struct aq_nic_s *nic);
 129int aq_macsec_tx_sa_cnt(struct aq_nic_s *nic);
 130
 131#endif
 132
 133#endif /* AQ_MACSEC_H */
 134