Set up the data structures to be used by the ipsec offload.
v2: ipaddr[] becomes __be32
increase the hash table size
Signed-off-by: Shannon Nelson <shannon.nel...@oracle.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe.h | 5 ++++
drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.h | 40 ++++++++++++++++++++++++++
2 files changed, 45 insertions(+)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index 1e11462..9487750 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -622,6 +622,7 @@ 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;
@@ -772,6 +773,10 @@ 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)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.h
b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.h
index 8fe8289..da3ce78 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.h
@@ -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_ */
--
2.7.4
