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
 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 */