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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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0062e7cc95
Add the IPsec offload support code. This is based off of the similar code in ixgbe, but instead of writing the SA registers, the VF asks the PF to setup the offload by sending the offload information to the PF via the standard mailbox. 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>
67 lines
1.1 KiB
C
67 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright(c) 2018 Oracle and/or its affiliates. All rights reserved. */
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#ifndef _IXGBEVF_IPSEC_H_
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#define _IXGBEVF_IPSEC_H_
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#define IXGBE_IPSEC_MAX_SA_COUNT 1024
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#define IXGBE_IPSEC_BASE_RX_INDEX 0
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#define IXGBE_IPSEC_BASE_TX_INDEX IXGBE_IPSEC_MAX_SA_COUNT
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#define IXGBE_IPSEC_AUTH_BITS 128
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#define IXGBE_RXMOD_VALID 0x00000001
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#define IXGBE_RXMOD_PROTO_ESP 0x00000004
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#define IXGBE_RXMOD_DECRYPT 0x00000008
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#define IXGBE_RXMOD_IPV6 0x00000010
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struct rx_sa {
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struct hlist_node hlist;
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struct xfrm_state *xs;
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__be32 ipaddr[4];
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u32 key[4];
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u32 salt;
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u32 mode;
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u32 pfsa;
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bool used;
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bool decrypt;
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};
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struct rx_ip_sa {
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__be32 ipaddr[4];
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u32 ref_cnt;
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bool used;
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};
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struct tx_sa {
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struct xfrm_state *xs;
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u32 key[4];
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u32 salt;
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u32 pfsa;
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bool encrypt;
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bool used;
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};
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struct ixgbevf_ipsec_tx_data {
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u32 flags;
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u16 trailer_len;
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u16 pfsa;
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};
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struct ixgbevf_ipsec {
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u16 num_rx_sa;
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u16 num_tx_sa;
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struct rx_sa *rx_tbl;
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struct tx_sa *tx_tbl;
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DECLARE_HASHTABLE(rx_sa_list, 10);
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};
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struct sa_mbx_msg {
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__be32 spi;
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u8 flags;
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u8 proto;
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u16 family;
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__be32 addr[4];
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u32 key[5];
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};
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#endif /* _IXGBEVF_IPSEC_H_ */
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