drivers/net/ethernet/intel/ixgbevf/ipsec.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright(c) 2018 Oracle and/or its affiliates. All rights reserved. */
   3
   4 #ifndef _IXGBEVF_IPSEC_H_
   5 #define _IXGBEVF_IPSEC_H_
   6
   7 #define IXGBE_IPSEC_MAX_SA_COUNT        1024
   8 #define IXGBE_IPSEC_BASE_RX_INDEX       0
   9 #define IXGBE_IPSEC_BASE_TX_INDEX       IXGBE_IPSEC_MAX_SA_COUNT
  10 #define IXGBE_IPSEC_AUTH_BITS           128
  11
  12 #define IXGBE_RXMOD_VALID               0x00000001
  13 #define IXGBE_RXMOD_PROTO_ESP           0x00000004
  14 #define IXGBE_RXMOD_DECRYPT             0x00000008
  15 #define IXGBE_RXMOD_IPV6                0x00000010
  16
  17 struct rx_sa {
  18         struct hlist_node hlist;
  19         struct xfrm_state *xs;
  20         __be32 ipaddr[4];
  21         u32 key[4];
  22         u32 salt;
  23         u32 mode;
  24         u32 pfsa;
  25         bool used;
  26         bool decrypt;
  27 };
  28
  29 struct rx_ip_sa {
  30         __be32 ipaddr[4];
  31         u32 ref_cnt;
  32         bool used;
  33 };
  34
  35 struct tx_sa {
  36         struct xfrm_state *xs;
  37         u32 key[4];
  38         u32 salt;
  39         u32 pfsa;
  40         bool encrypt;
  41         bool used;
  42 };
  43
  44 struct ixgbevf_ipsec_tx_data {
  45         u32 flags;
  46         u16 trailer_len;
  47         u16 pfsa;
  48 };
  49
  50 struct ixgbevf_ipsec {
  51         u16 num_rx_sa;
  52         u16 num_tx_sa;
  53         struct rx_sa *rx_tbl;
  54         struct tx_sa *tx_tbl;
  55         DECLARE_HASHTABLE(rx_sa_list, 10);
  56 };
  57
  58 struct sa_mbx_msg {
  59         __be32 spi;
  60         u8 dir;
  61         u8 proto;
  62         u16 family;
  63         __be32 addr[4];
  64         u32 key[5];
  65 };
  66 #endif /* _IXGBEVF_IPSEC_H_ */