diff options
| author |   Lior Nahmanson <liorna@nvidia.com> | 2022-09-05 22:21:15 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-09-07 14:02:08 +0100 |
| commit | b1671253c6015841f6cabd39730fa42fb6d3d407 (patch) | |
| tree | ad930e9b3dc4e27779d3bb9b307f285fd62f8317 /include/net | |
| parent | net/macsec: Add MACsec skb_metadata_dst Rx Data path support (diff) | |
| download | linux-dev-b1671253c6015841f6cabd39730fa42fb6d3d407.tar.xz linux-dev-b1671253c6015841f6cabd39730fa42fb6d3d407.zip | |
net/macsec: Move some code for sharing with various drivers that implements offload
Move some MACsec infrastructure like defines and functions,
in order to avoid code duplication for future drivers which
implements MACsec offload.
Signed-off-by: Lior Nahmanson <liorna@nvidia.com>
Reviewed-by: Raed Salem <raeds@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Ben Ben-Ishay <benishay@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/macsec.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/net/macsec.h b/include/net/macsec.h index 8494953fb0de..871599b11707 100644 --- a/include/net/macsec.h +++ b/include/net/macsec.h @@ -16,6 +16,20 @@ #define MACSEC_NUM_AN 4 /* 2 bits for the association number */ +#define MACSEC_SCI_LEN 8 +#define MACSEC_PORT_ES (htons(0x0001)) + +#define MACSEC_TCI_VERSION 0x80 +#define MACSEC_TCI_ES 0x40 /* end station */ +#define MACSEC_TCI_SC 0x20 /* SCI present */ +#define MACSEC_TCI_SCB 0x10 /* epon */ +#define MACSEC_TCI_E 0x08 /* encryption */ +#define MACSEC_TCI_C 0x04 /* changed text */ +#define MACSEC_AN_MASK 0x03 /* association number */ +#define MACSEC_TCI_CONFID (MACSEC_TCI_E | MACSEC_TCI_C) + +#define MACSEC_DEFAULT_ICV_LEN 16 + typedef u64 __bitwise sci_t; typedef u32 __bitwise ssci_t; @@ -292,5 +306,12 @@ struct macsec_ops { }; void macsec_pn_wrapped(struct macsec_secy *secy, struct macsec_tx_sa *tx_sa); +static inline bool macsec_send_sci(const struct macsec_secy *secy) +{ + const struct macsec_tx_sc *tx_sc = &secy->tx_sc; + + return tx_sc->send_sci || + (secy->n_rx_sc > 1 && !tx_sc->end_station && !tx_sc->scb); +} #endif /* _NET_MACSEC_H_ */ |