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net/macsec: Move some code for sharing with various drivers that implements offload

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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>
This commit is contained in:
Lior Nahmanson
2022-09-05 22:21:15 -07:00
committed by David S. Miller
parent 860ead89b8
commit b1671253c6
2 changed files with 27 additions and 27 deletions
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21
include/net/macsec.h
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@@ -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_ */