From: Ankur Dwivedi <adwiv...@marvell.com>

This patch adds the driver outbound worker thread for ipsec-secgw.
In this mode the security session is a fixed one and sa update
is not done.

Signed-off-by: Ankur Dwivedi <adwiv...@marvell.com>
Signed-off-by: Anoob Joseph <ano...@marvell.com>
Signed-off-by: Lukasz Bartosik <lbarto...@marvell.com>
---
 examples/ipsec-secgw/ipsec-secgw.c  | 12 +++++
 examples/ipsec-secgw/ipsec.c        |  9 ++++
 examples/ipsec-secgw/ipsec_worker.c | 90 ++++++++++++++++++++++++++++++++++++-
 3 files changed, 110 insertions(+), 1 deletion(-)

diff --git a/examples/ipsec-secgw/ipsec-secgw.c 
b/examples/ipsec-secgw/ipsec-secgw.c
index 2e7d4d8..76719f2 100644
--- a/examples/ipsec-secgw/ipsec-secgw.c
+++ b/examples/ipsec-secgw/ipsec-secgw.c
@@ -2011,6 +2011,18 @@ cryptodevs_init(void)
                        i++;
                }
 
+               /*
+                * Set the queue pair to at least the number of ethernet
+                * devices for inline outbound.
+                */
+               qp = RTE_MAX(rte_eth_dev_count_avail(), qp);
+
+               /*
+                * The requested number of queues should never exceed
+                * the max available
+                */
+               qp = RTE_MIN(qp, max_nb_qps);
+
                if (qp == 0)
                        continue;
 
diff --git a/examples/ipsec-secgw/ipsec.c b/examples/ipsec-secgw/ipsec.c
index e529f68..9ff8a63 100644
--- a/examples/ipsec-secgw/ipsec.c
+++ b/examples/ipsec-secgw/ipsec.c
@@ -141,6 +141,10 @@ create_lookaside_session(struct ipsec_ctx *ipsec_ctx, 
struct ipsec_sa *sa,
        return 0;
 }
 
+uint16_t sa_no;
+#define MAX_FIXED_SESSIONS     10
+struct rte_security_session *sec_session_fixed[MAX_FIXED_SESSIONS];
+
 int
 create_inline_session(struct socket_ctx *skt_ctx, struct ipsec_sa *sa,
                struct rte_ipsec_session *ips)
@@ -401,6 +405,11 @@ create_inline_session(struct socket_ctx *skt_ctx, struct 
ipsec_sa *sa,
 
                ips->security.ol_flags = sec_cap->ol_flags;
                ips->security.ctx = sec_ctx;
+               if (sa_no < MAX_FIXED_SESSIONS) {
+                       sec_session_fixed[sa_no] =
+                               ipsec_get_primary_session(sa)->security.ses;
+                       sa_no++;
+               }
        }
 
 set_cdev_id:
diff --git a/examples/ipsec-secgw/ipsec_worker.c 
b/examples/ipsec-secgw/ipsec_worker.c
index 2af9475..e202277 100644
--- a/examples/ipsec-secgw/ipsec_worker.c
+++ b/examples/ipsec-secgw/ipsec_worker.c
@@ -263,7 +263,7 @@ process_ipsec_ev_inbound(struct ipsec_ctx *ctx, struct 
route_table *rt,
  */
 
 /* Workers registered */
-#define IPSEC_EVENTMODE_WORKERS                2
+#define IPSEC_EVENTMODE_WORKERS                3
 
 /*
  * Event mode worker
@@ -423,6 +423,84 @@ ipsec_wrkr_non_burst_int_port_app_mode_inb(struct 
eh_event_link_info *links,
        return;
 }
 
+/*
+ * Event mode worker
+ * Operating parameters : non-burst - Tx internal port - driver mode - outbound
+ */
+extern struct rte_security_session *sec_session_fixed[];
+static void
+ipsec_wrkr_non_burst_int_port_drvr_mode_outb(struct eh_event_link_info *links,
+               uint8_t nb_links)
+{
+       unsigned int nb_rx = 0;
+       struct rte_mbuf *pkt;
+       unsigned int port_id;
+       struct rte_event ev;
+       uint32_t lcore_id;
+
+       /* Check if we have links registered for this lcore */
+       if (nb_links == 0) {
+               /* No links registered - exit */
+               goto exit;
+       }
+
+       /* Get core ID */
+       lcore_id = rte_lcore_id();
+
+       RTE_LOG(INFO, IPSEC,
+               "Launching event mode worker (non-burst - Tx internal port - "
+               "driver mode - outbound) on lcore %d\n", lcore_id);
+
+       /* We have valid links */
+
+       /* Check if it's single link */
+       if (nb_links != 1) {
+               RTE_LOG(INFO, IPSEC,
+                       "Multiple links not supported. Using first link\n");
+       }
+
+       RTE_LOG(INFO, IPSEC, " -- lcoreid=%u event_port_id=%u\n", lcore_id,
+                       links[0].event_port_id);
+       while (!force_quit) {
+               /* Read packet from event queues */
+               nb_rx = rte_event_dequeue_burst(links[0].eventdev_id,
+                               links[0].event_port_id,
+                               &ev,    /* events */
+                               1,      /* nb_events */
+                               0       /* timeout_ticks */);
+
+               if (nb_rx == 0)
+                       continue;
+
+               port_id = ev.queue_id;
+               pkt = ev.mbuf;
+
+               rte_prefetch0(rte_pktmbuf_mtod(pkt, void *));
+
+               /* Process packet */
+               ipsec_event_pre_forward(pkt, port_id);
+
+               pkt->udata64 = (uint64_t) sec_session_fixed[port_id];
+
+               /* Mark the packet for Tx security offload */
+               pkt->ol_flags |= PKT_TX_SEC_OFFLOAD;
+
+               /*
+                * Since tx internal port is available, events can be
+                * directly enqueued to the adapter and it would be
+                * internally submitted to the eth device.
+                */
+               rte_event_eth_tx_adapter_enqueue(links[0].eventdev_id,
+                               links[0].event_port_id,
+                               &ev,    /* events */
+                               1,      /* nb_events */
+                               0       /* flags */);
+       }
+
+exit:
+       return;
+}
+
 static uint8_t
 ipsec_eventmode_populate_wrkr_params(struct eh_app_worker_params *wrkrs)
 {
@@ -449,6 +527,16 @@ ipsec_eventmode_populate_wrkr_params(struct 
eh_app_worker_params *wrkrs)
        wrkr->cap.ipsec_dir = EH_IPSEC_DIR_TYPE_INBOUND;
        wrkr->worker_thread = ipsec_wrkr_non_burst_int_port_app_mode_inb;
 
+       wrkr++;
+       nb_wrkr_param++;
+
+       /* Non-burst - Tx internal port - driver mode - outbound */
+       wrkr->cap.burst = EH_RX_TYPE_NON_BURST;
+       wrkr->cap.tx_internal_port = EH_TX_TYPE_INTERNAL_PORT;
+       wrkr->cap.ipsec_mode = EH_IPSEC_MODE_TYPE_DRIVER;
+       wrkr->cap.ipsec_dir = EH_IPSEC_DIR_TYPE_OUTBOUND;
+       wrkr->worker_thread = ipsec_wrkr_non_burst_int_port_drvr_mode_outb;
+
        nb_wrkr_param++;
        return nb_wrkr_param;
 }
-- 
2.7.4

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