On 12/11/2014 04:25 PM, Robbie King (robking) wrote:
> See [rk] below.
> 
> -----Original Message-----
> From: Taras Kondratiuk [mailto:taras.kondrat...@linaro.org] 
> Sent: Wednesday, December 10, 2014 7:12 PM
> To: Robbie King (robking); lng-odp@lists.linaro.org
> Subject: Re: [lng-odp] [RFC v2 3/3] Update IPsec example app to use new 
> completion event constructs
> 
> On 12/10/2014 05:12 PM, Robbie King wrote:
>> @@ -761,9 +766,9 @@ pkt_disposition_e do_ipsec_in_classify(odp_packet_t pkt,
>>   */
>>  static
>>  pkt_disposition_e do_ipsec_in_finish(odp_packet_t pkt,
>> -                                 pkt_ctx_t *ctx)
>> +                                 pkt_ctx_t *ctx,
>> +                                 odp_crypto_compl_event_t event)
>>  {
>> -    odp_buffer_t event;
>>      odp_crypto_compl_status_t cipher_rc;
>>      odp_crypto_compl_status_t auth_rc;
>>      odph_ipv4hdr_t *ip;
>> @@ -771,8 +776,8 @@ pkt_disposition_e do_ipsec_in_finish(odp_packet_t pkt,
>>      int trl_len = 0;
>>  
>>      /* Check crypto result */
>> -    event = odp_packet_to_buffer(pkt);
>>      odp_crypto_get_operation_compl_status(event, &cipher_rc, &auth_rc);
>> +    odp_crypto_release_compl_event(event);
> 
> If operation is done synchronously but out of place, then 'pkt' is an
> old packet.
> 
> [rk] The packet handle passed back through the completion event should
> be the output packet handle (see below), and in my changes "pkt" is 
> extracted from the completion event.  Are you talking about the 
> line "event = ...(pkt)" above that was deleted?
> 
>       /* Build Result (no HW so no errors) */
>       result = get_op_result_from_compl_event(completion_event);
>       result->magic = OP_RESULT_MAGIC;
>       result->ctx = ctx;
>       result->pkt = params->out_pkt;
> 

Maybe I'm missing something, but in a current patch packet is extracted
from completion event only in asynchronous case when packet is dequeued
from a queue. In synchronous case PKT_CONTINUE is returned from this
function and old packet is used for a next step.

-- 
Taras Kondratiuk

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