Hi Anoob,
On Wed, Nov 29, 2017 at 06:00:38PM +0530, Anoob wrote:
> Hi Nelio,
>
> Since support of RSS with inline crypto/protocol is hardware
> implementation dependent, it would be better if there is some sort of
> capability check before setting the flow parameters in the application.
>
> If the hardware doesn't support RSS with inline processing, then the RSS
> flow action will have to be ignored in the driver. This wouldn't look
> right from application's point of view. And also the PMD would need
> application-specific logic to handle such cases, which may not scale well.
There is a real issue here, RTE_FLOW API needs a terminal action, security is
not one [1] you must have one of the followings: QUEUE, DROP, RSS, PF,
VF or PASSTHRU.
Flow API does not work with "capabilities" as the application can verify
the rule using the validate(). If it cannot be validated the
application can test another kind of rule until the PMD returns a
success.
Here, I am proposing the RSS as RSS with a single queue is equivalent to queue.
On Mellanox NIC we need the RSS or QUEUE in ingress and for Egress PASSTHRU
is good.
What are your needs?
Regards,
> Thanks,
> Anoob
>
> On 11/23/2017 08:42 PM, Nelio Laranjeiro wrote:
>
> Mellanox INNOVA NIC needs to have final target queue actions to perform
> inline crypto.
>
> Signed-off-by: Nelio Laranjeiro [1]<nelio.laranje...@6wind.com>
> ---
> examples/ipsec-secgw/ipsec.c | 27 ++++++++++++++++++++++++++-
> examples/ipsec-secgw/ipsec.h | 2 +-
> 2 files changed, 27 insertions(+), 2 deletions(-)
>
> diff --git a/examples/ipsec-secgw/ipsec.c b/examples/ipsec-secgw/ipsec.c
> index 17bd7620d..e967f88b3 100644
> --- a/examples/ipsec-secgw/ipsec.c
> +++ b/examples/ipsec-secgw/ipsec.c
> @@ -142,6 +142,22 @@ create_session(struct ipsec_ctx *ipsec_ctx, struct
> ipsec_sa *sa)
>
> rte_eth_dev_get_sec_ctx(
> sa->portid);
> const struct rte_security_capability *sec_cap;
> + uint8_t rss_key[40];
> + struct rte_eth_rss_conf rss_conf = {
> + .rss_key = rss_key,
> + .rss_key_len = 40,
> + };
> + struct rte_eth_dev *eth_dev;
> + union {
> + struct rte_flow_action_rss rss;
> + struct {
> + const struct rte_eth_rss_conf
> *rss_conf;
> + uint16_t num;
> + uint16_t
> queue[RTE_MAX_QUEUES_PER_PORT];
> + } local;
> + } action_rss;
> + unsigned int i;
> + unsigned int j;
>
> sa->sec_session = rte_security_session_create(ctx,
> &sess_conf, ipsec_ctx->session_pool);
> @@ -201,7 +217,16 @@ create_session(struct ipsec_ctx *ipsec_ctx, struct
> ipsec_sa *sa)
> sa->action[0].type = RTE_FLOW_ACTION_TYPE_SECURITY;
> sa->action[0].conf = sa->sec_session;
>
> - sa->action[1].type = RTE_FLOW_ACTION_TYPE_END;
> + sa->action[1].type = RTE_FLOW_ACTION_TYPE_RSS;
> + sa->action[1].conf = &action_rss;
> + eth_dev = ctx->device;
> + rte_eth_dev_rss_hash_conf_get(sa->portid, &rss_conf);
> + for (i = 0, j = 0; i < eth_dev->data->nb_rx_queues;
> ++i)
> + if (eth_dev->data->rx_queues[i])
> + action_rss.local.queue[j++] = i;
> + action_rss.local.num = j;
> + action_rss.local.rss_conf = &rss_conf;
> + sa->action[2].type = RTE_FLOW_ACTION_TYPE_END;
>
> sa->attr.egress = (sa->direction ==
> RTE_SECURITY_IPSEC_SA_DIR_EGRESS);
> diff --git a/examples/ipsec-secgw/ipsec.h b/examples/ipsec-secgw/ipsec.h
> index 775b316ff..82ffc1c6d 100644
> --- a/examples/ipsec-secgw/ipsec.h
> +++ b/examples/ipsec-secgw/ipsec.h
> @@ -133,7 +133,7 @@ struct ipsec_sa {
> uint32_t ol_flags;
>
> #define MAX_RTE_FLOW_PATTERN (4)
> -#define MAX_RTE_FLOW_ACTIONS (2)
> +#define MAX_RTE_FLOW_ACTIONS (4)
> struct rte_flow_item pattern[MAX_RTE_FLOW_PATTERN];
> struct rte_flow_action action[MAX_RTE_FLOW_ACTIONS];
> struct rte_flow_attr attr;
>
> References
>
> Visible links
> 1. mailto:nelio.laranje...@6wind.com
[1]
http://dpdk.org/doc/guides/prog_guide/rte_flow.html?highlight=rte_flow#actions
--
Nélio Laranjeiro
6WIND
