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ixgbe: add ipsec data structures 

Set up the data structures to be used by the ipsec offload.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Shannon Nelson 2017-12-19 15:59:56 -08:00 committed by Jeff Kirsher
parent 49a94d74d9
commit 34c822e2fb
2 changed files with 45 additions and 0 deletions
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5
drivers/net/ethernet/intel/ixgbe/ixgbe.h
View File

@ -630,6 +630,7 @@ struct ixgbe_adapter {
#define IXGBE_FLAG2_EEE_CAPABLE BIT(14)
#define IXGBE_FLAG2_EEE_ENABLED BIT(15)
#define IXGBE_FLAG2_RX_LEGACY BIT(16)
#define IXGBE_FLAG2_IPSEC_ENABLED BIT(17)
/* Tx fast path data */
int num_tx_queues;
@ -782,6 +783,10 @@ struct ixgbe_adapter {
#define IXGBE_RSS_KEY_SIZE 40 /* size of RSS Hash Key in bytes */
u32 *rss_key;
#ifdef CONFIG_XFRM
struct ixgbe_ipsec *ipsec;
#endif /* CONFIG_XFRM */
};
static inline u8 ixgbe_max_rss_indices(struct ixgbe_adapter *adapter)

40
drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.h
View File

@ -50,4 +50,44 @@ enum ixgbe_ipsec_tbl_sel {
#define IXGBE_RXMOD_DECRYPT 0x00000008
#define IXGBE_RXMOD_IPV6 0x00000010
struct rx_sa {
struct hlist_node hlist;
struct xfrm_state *xs;
__be32 ipaddr[4];
u32 key[4];
u32 salt;
u32 mode;
u8 iptbl_ind;
bool used;
bool decrypt;
};
struct rx_ip_sa {
__be32 ipaddr[4];
u32 ref_cnt;
bool used;
};
struct tx_sa {
struct xfrm_state *xs;
u32 key[4];
u32 salt;
bool encrypt;
bool used;
};
struct ixgbe_ipsec_tx_data {
u32 flags;
u16 trailer_len;
u16 sa_idx;
};
struct ixgbe_ipsec {
u16 num_rx_sa;
u16 num_tx_sa;
struct rx_ip_sa *ip_tbl;
struct rx_sa *rx_tbl;
struct tx_sa *tx_tbl;
DECLARE_HASHTABLE(rx_sa_list, 10);
};
#endif /* _IXGBE_IPSEC_H_ */