Re: [dpdk-dev] [PATCH v2 1/2] examples/ipsec-secgw: fix 1st pkt dropped for inline crypto

[Akhil Goyal <akhil.goyal@nxp.com>]

Hi Bernard,

On 3/7/2019 8:27 PM, Bernard Iremonger wrote:
> Inline crypto installs a flow rule in the NIC. This flow
> rule must be installed before the first inbound packet is
> received.
>
> The create_session() function installs the flow rule,
> create_session() has been refactored into create_inline_session()
> and create_lookaside_session(). The create_inline_session() function
> uses the socket_ctx data and is now called at initialisation in
> sa_add_rules().
why do we need a separate function for session creation for inline and 
lookaside cases?
Why can't we initialize the sessions on sa_init in both the cases?
>
> The max_session_size() function has been added to calculate memory
> requirements.
>
> The cryprodev_init() function has been refactored to drop calls to
> rte_mempool_create() and to drop calculation of memory requirements.
>
> The main() function has been refactored to call max_session_size() and
> to call session_pool_init() and session_priv_pool_init() earlier.
> The ports are started now before adding a flow rule in main().
> The sa_init(), sp4_init(), sp6_init() and rt_init() functions are
> now called after the ports have been started.
>
> The rte_ipsec_session_prepare() function is called in fill_ipsec_session()
> for inline which is called from the ipsec_sa_init() function.
>
> Fixes: ec17993a145a ("examples/ipsec-secgw: support security offload")
> Fixes: d299106e8e31 ("examples/ipsec-secgw: add IPsec sample application")
> Cc: stable@dpdk.org
>
> Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
> ---
>   examples/ipsec-secgw/ipsec-secgw.c   | 243 +++++++++++++++++------------------
>   examples/ipsec-secgw/ipsec.c         | 123 ++++++++++++------
>   examples/ipsec-secgw/ipsec.h         |   5 +-
>   examples/ipsec-secgw/ipsec_process.c |   9 +-
>   examples/ipsec-secgw/sa.c            |  46 +++++--
>   5 files changed, 246 insertions(+), 180 deletions(-)
>
>