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security: add reserved bit fields

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In struct rte_security_ipsec_sa_options, for every new option
added, there is an ABI breakage, to avoid, a reserved_opts
bitfield is added to for the remaining bits available in the
structure.
Now for every new sa option, these reserved_opts can be reduced
and new option can be added.

Signed-off-by: Akhil Goyal <gakhil@marvell.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
This commit is contained in:
Akhil Goyal 2021-10-18 10:52:47 +05:30
parent 3867ed0280
commit fb545457ed
1 changed files with 9 additions and 0 deletions
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9
lib/security/rte_security.h
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@ -263,6 +263,15 @@ struct rte_security_ipsec_sa_options {
* PKT_TX_UDP_CKSUM or PKT_TX_L4_MASK in mbuf.
*/
uint32_t l4_csum_enable : 1;
/** Reserved bit fields for future extension
*
* User should ensure reserved_opts is cleared as it may change in
* subsequent releases to support new options.
*
* Note: Reduce number of bits in reserved_opts for every new option.
*/
uint32_t reserved_opts : 18;
};
/** IPSec security association direction */