drivers/net/ethernet/aquantia/atlantic/aq_macsec.h

   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
  14 struct aq_nic_s;
  15
  16 #define AQ_MACSEC_MAX_SC 32
  17 #define AQ_MACSEC_MAX_SA 32
  18
  19 enum 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
  26 struct 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 */
  59 struct 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 */
  75 struct 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 */
  83 struct 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
  90 struct 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_KEYID_LEN];
  95         struct aq_macsec_tx_sc_stats stats;
  96         struct aq_macsec_tx_sa_stats tx_sa_stats[MACSEC_NUM_AN];
  97 };
  98
  99 struct 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_KEYID_LEN];
 105         struct aq_macsec_rx_sa_stats rx_sa_stats[MACSEC_NUM_AN];
 106 };
 107
 108 struct 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
 120 extern const struct macsec_ops aq_macsec_ops;
 121
 122 int aq_macsec_init(struct aq_nic_s *nic);
 123 void aq_macsec_free(struct aq_nic_s *nic);
 124 int aq_macsec_enable(struct aq_nic_s *nic);
 125 void aq_macsec_work(struct aq_nic_s *nic);
 126 u64 *aq_macsec_get_stats(struct aq_nic_s *nic, u64 *data);
 127 int aq_macsec_rx_sa_cnt(struct aq_nic_s *nic);
 128 int aq_macsec_tx_sc_cnt(struct aq_nic_s *nic);
 129 int aq_macsec_tx_sa_cnt(struct aq_nic_s *nic);
 130
 131 #endif
 132
 133 #endif /* AQ_MACSEC_H */