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To: Akhil Goyal <gakhil@marvell.com>, Declan Doherty <declan.doherty@intel.com>
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From: "Nicolau, Radu" <radu.nicolau@intel.com>
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Subject: Re: [dpdk-dev] [EXT] [PATCH v4 03/10] security: add ESN field to
ipsec_xform
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On 9/5/2021 3:47 PM, Akhil Goyal wrote:
> Hi Radu,
>
>> ----------------------------------------------------------------------
>> Update ipsec_xform definition to include ESN field.
>>
>> Signed-off-by: Declan Doherty <declan.doherty@intel.com>
>> Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
>> Signed-off-by: Abhijit Sinha <abhijit.sinha@intel.com>
>> Signed-off-by: Daniel Martin Buckley <daniel.m.buckley@intel.com>
>> ---
>> lib/security/rte_security.h | 8 ++++++++
>> 1 file changed, 8 insertions(+)
>>
>> diff --git a/lib/security/rte_security.h b/lib/security/rte_security.h
>> index 03572b10ab..702de58b48 100644
>> --- a/lib/security/rte_security.h
>> +++ b/lib/security/rte_security.h
>> @@ -240,6 +240,14 @@ struct rte_security_ipsec_xform {
>> */
>> uint32_t mss;
>> /**< IPsec payload Maximum Segment Size */
>> + union {
>> + uint64_t value;
>> + struct {
>> + uint32_t low;
>> + uint32_t hi;
>> + };
>> + } esn;
>> + /**< Extended Sequence Number */
>> };
> Can we use the following change for monitoring ESN?
> http://patches.dpdk.org/project/dpdk/patch/1629207767-262-2-git-send-email-anoobj@marvell.com/
>
> I believe ESN is not required to be set as SA parameter, it is normally
> maintained by the PMD and application should be notified if a limit is reached.
>
> Regards,
> Akhil
Hi Akhil, I suppose they can be complementary, with this one being a
hard ESN limit that the user can enforce by setting the initial ESN
value - but there is no requirement to do so. Also, this change doesn't
need explicit support added in the PMDs.