[PATCH v2 14/15] net/cnxk: add MACsec session and flow configuration

[Akhil Goyal <gakhil@marvell.com>]

Added support for MACsec session/flow create/destroy.

Signed-off-by: Akhil Goyal <gakhil@marvell.com>
---
 drivers/net/cnxk/cn10k_ethdev_sec.c |  11 +-
 drivers/net/cnxk/cn10k_flow.c       |  23 ++-
 drivers/net/cnxk/cnxk_ethdev.c      |   2 +
 drivers/net/cnxk/cnxk_ethdev.h      |  16 ++
 drivers/net/cnxk/cnxk_ethdev_mcs.c  | 261 ++++++++++++++++++++++++++++
 drivers/net/cnxk/cnxk_ethdev_mcs.h  |  25 +++
 drivers/net/cnxk/cnxk_ethdev_sec.c  |   2 +-
 drivers/net/cnxk/cnxk_flow.c        |   5 +
 8 files changed, 341 insertions(+), 4 deletions(-)

diff --git a/drivers/net/cnxk/cn10k_ethdev_sec.c b/drivers/net/cnxk/cn10k_ethdev_sec.c
index 1db29a0b55..f20e573338 100644
--- a/drivers/net/cnxk/cn10k_ethdev_sec.c
+++ b/drivers/net/cnxk/cn10k_ethdev_sec.c
@@ -642,7 +642,9 @@ cn10k_eth_sec_session_create(void *device,
 	if (conf->action_type != RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL)
 		return -ENOTSUP;
 
-	if (conf->protocol != RTE_SECURITY_PROTOCOL_IPSEC)
+	if (conf->protocol == RTE_SECURITY_PROTOCOL_MACSEC)
+		return cnxk_eth_macsec_session_create(dev, conf, sess);
+	else if (conf->protocol != RTE_SECURITY_PROTOCOL_IPSEC)
 		return -ENOTSUP;
 
 	if (rte_security_dynfield_register() < 0)
@@ -887,13 +889,18 @@ cn10k_eth_sec_session_destroy(void *device, struct rte_security_session *sess)
 {
 	struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)device;
 	struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
+	struct cnxk_macsec_sess *macsec_sess;
 	struct cnxk_eth_sec_sess *eth_sec;
 	rte_spinlock_t *lock;
 	void *sa_dptr;
 
 	eth_sec = cnxk_eth_sec_sess_get_by_sess(dev, sess);
-	if (!eth_sec)
+	if (!eth_sec) {
+		macsec_sess = cnxk_eth_macsec_sess_get_by_sess(dev, sess);
+		if (macsec_sess)
+			return cnxk_eth_macsec_session_destroy(dev, sess);
 		return -ENOENT;
+	}
 
 	lock = eth_sec->inb ? &dev->inb.lock : &dev->outb.lock;
 	rte_spinlock_lock(lock);
diff --git a/drivers/net/cnxk/cn10k_flow.c b/drivers/net/cnxk/cn10k_flow.c
index d7a3442c5f..db5e427362 100644
--- a/drivers/net/cnxk/cn10k_flow.c
+++ b/drivers/net/cnxk/cn10k_flow.c
@@ -1,10 +1,11 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  * Copyright(C) 2020 Marvell.
  */
-#include <cnxk_flow.h>
 #include "cn10k_flow.h"
 #include "cn10k_ethdev.h"
 #include "cn10k_rx.h"
+#include "cnxk_ethdev_mcs.h"
+#include <cnxk_flow.h>
 
 static int
 cn10k_mtr_connect(struct rte_eth_dev *eth_dev, uint32_t mtr_id)
@@ -133,6 +134,7 @@ cn10k_flow_create(struct rte_eth_dev *eth_dev, const struct rte_flow_attr *attr,
 	const struct rte_flow_action *act_q = NULL;
 	struct roc_npc *npc = &dev->npc;
 	struct roc_npc_flow *flow;
+	void *mcs_flow = NULL;
 	int vtag_actions = 0;
 	uint32_t req_act = 0;
 	int mark_actions;
@@ -187,6 +189,17 @@ cn10k_flow_create(struct rte_eth_dev *eth_dev, const struct rte_flow_attr *attr,
 		}
 	}
 
+	if (actions[0].type == RTE_FLOW_ACTION_TYPE_SECURITY &&
+	    cnxk_eth_macsec_sess_get_by_sess(dev, actions[0].conf) != NULL) {
+		rc = cnxk_mcs_flow_configure(eth_dev, attr, pattern, actions, error, &mcs_flow);
+		if (rc) {
+			rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_ACTION, NULL,
+					   "Failed to configure mcs flow");
+			return NULL;
+		}
+		return (struct rte_flow *)mcs_flow;
+	}
+
 	flow = cnxk_flow_create(eth_dev, attr, pattern, actions, error);
 	if (!flow) {
 		if (mtr)
@@ -265,6 +278,14 @@ cn10k_flow_destroy(struct rte_eth_dev *eth_dev, struct rte_flow *rte_flow,
 		}
 	}
 
+	if (cnxk_eth_macsec_sess_get_by_sess(dev, (void *)flow) != NULL) {
+		rc = cnxk_mcs_flow_destroy(dev, (void *)flow);
+		if (rc < 0)
+			rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+					NULL, "Failed to free mcs flow");
+		return rc;
+	}
+
 	mtr_id = flow->mtr_id;
 	rc = cnxk_flow_destroy(eth_dev, flow, error);
 	if (!rc && mtr_id != ROC_NIX_MTR_ID_INVALID) {
diff --git a/drivers/net/cnxk/cnxk_ethdev.c b/drivers/net/cnxk/cnxk_ethdev.c
index 5368f0777d..4b98faa729 100644
--- a/drivers/net/cnxk/cnxk_ethdev.c
+++ b/drivers/net/cnxk/cnxk_ethdev.c
@@ -1969,6 +1969,8 @@ cnxk_eth_dev_init(struct rte_eth_dev *eth_dev)
 		}
 		dev->rx_offload_capa |= RTE_ETH_RX_OFFLOAD_MACSEC_STRIP;
 		dev->tx_offload_capa |= RTE_ETH_TX_OFFLOAD_MACSEC_INSERT;
+
+		TAILQ_INIT(&dev->mcs_list);
 	}
 
 	plt_nix_dbg("Port=%d pf=%d vf=%d ver=%s hwcap=0x%" PRIx64
diff --git a/drivers/net/cnxk/cnxk_ethdev.h b/drivers/net/cnxk/cnxk_ethdev.h
index d5bb06b823..45dc72b609 100644
--- a/drivers/net/cnxk/cnxk_ethdev.h
+++ b/drivers/net/cnxk/cnxk_ethdev.h
@@ -292,6 +292,21 @@ struct cnxk_eth_dev_sec_outb {
 	uint64_t cpt_eng_caps;
 };
 
+/* MACsec session private data */
+struct cnxk_macsec_sess {
+	/* List entry */
+	TAILQ_ENTRY(cnxk_macsec_sess) entry;
+
+	/* Back pointer to session */
+	struct rte_security_session *sess;
+	enum mcs_direction dir;
+	uint64_t sci;
+	uint8_t secy_id;
+	uint8_t sc_id;
+	uint8_t flow_id;
+};
+TAILQ_HEAD(cnxk_macsec_sess_list, cnxk_macsec_sess);
+
 struct cnxk_eth_dev {
 	/* ROC NIX */
 	struct roc_nix nix;
@@ -398,6 +413,7 @@ struct cnxk_eth_dev {
 
 	/* MCS device */
 	struct cnxk_mcs_dev *mcs_dev;
+	struct cnxk_macsec_sess_list mcs_list;
 };
 
 struct cnxk_eth_rxq_sp {
diff --git a/drivers/net/cnxk/cnxk_ethdev_mcs.c b/drivers/net/cnxk/cnxk_ethdev_mcs.c
index 89876abc57..b47991e259 100644
--- a/drivers/net/cnxk/cnxk_ethdev_mcs.c
+++ b/drivers/net/cnxk/cnxk_ethdev_mcs.c
@@ -256,6 +256,267 @@ cnxk_eth_macsec_sc_destroy(void *device, uint16_t sc_id, enum rte_security_macse
 	return ret;
 }
 
+struct cnxk_macsec_sess *
+cnxk_eth_macsec_sess_get_by_sess(struct cnxk_eth_dev *dev, const struct rte_security_session *sess)
+{
+	struct cnxk_macsec_sess *macsec_sess = NULL;
+
+	TAILQ_FOREACH(macsec_sess, &dev->mcs_list, entry) {
+		if (macsec_sess->sess == sess)
+			return macsec_sess;
+	}
+
+	return NULL;
+}
+
+int
+cnxk_eth_macsec_session_create(struct cnxk_eth_dev *dev, struct rte_security_session_conf *conf,
+			       struct rte_security_session *sess)
+{
+	struct cnxk_macsec_sess *macsec_sess_priv = SECURITY_GET_SESS_PRIV(sess);
+	struct rte_security_macsec_xform *xform = &conf->macsec;
+	struct cnxk_mcs_dev *mcs_dev = dev->mcs_dev;
+	struct roc_mcs_secy_plcy_write_req req;
+	enum mcs_direction dir;
+	uint8_t secy_id = 0;
+	uint8_t sectag_tci = 0;
+	int ret = 0;
+
+	if (!roc_feature_nix_has_macsec())
+		return -ENOTSUP;
+
+	dir = (xform->dir == RTE_SECURITY_MACSEC_DIR_TX) ? MCS_TX : MCS_RX;
+	ret = mcs_resource_alloc(mcs_dev, dir, &secy_id, 1, CNXK_MCS_RSRC_TYPE_SECY);
+	if (ret) {
+		plt_err("Failed to allocate SECY id.");
+		return -ENOMEM;
+	}
+
+	req.secy_id = secy_id;
+	req.dir = dir;
+	req.plcy = 0L;
+
+	if (xform->dir == RTE_SECURITY_MACSEC_DIR_TX) {
+		sectag_tci = ((uint8_t)xform->tx_secy.sectag_version << 5) |
+			     ((uint8_t)xform->tx_secy.end_station << 4) |
+			     ((uint8_t)xform->tx_secy.send_sci << 3) |
+			     ((uint8_t)xform->tx_secy.scb << 2) |
+			     ((uint8_t)xform->tx_secy.encrypt << 1) |
+			     (uint8_t)xform->tx_secy.encrypt;
+		req.plcy = (((uint64_t)xform->tx_secy.mtu & 0xFFFF) << 28) |
+			   (((uint64_t)sectag_tci & 0x3F) << 22) |
+			   (((uint64_t)xform->tx_secy.sectag_off & 0x7F) << 15) |
+			   ((uint64_t)xform->tx_secy.sectag_insert_mode << 14) |
+			   ((uint64_t)xform->tx_secy.icv_include_da_sa << 13) |
+			   (((uint64_t)xform->cipher_off & 0x7F) << 6) |
+			   ((uint64_t)xform->alg << 2) |
+			   ((uint64_t)xform->tx_secy.protect_frames << 1) |
+			   (uint64_t)xform->tx_secy.ctrl_port_enable;
+	} else {
+		req.plcy = ((uint64_t)xform->rx_secy.replay_win_sz << 18) |
+			   ((uint64_t)xform->rx_secy.replay_protect << 17) |
+			   ((uint64_t)xform->rx_secy.icv_include_da_sa << 16) |
+			   (((uint64_t)xform->cipher_off & 0x7F) << 9) |
+			   ((uint64_t)xform->alg << 5) |
+			   ((uint64_t)xform->rx_secy.preserve_sectag << 4) |
+			   ((uint64_t)xform->rx_secy.preserve_icv << 3) |
+			   ((uint64_t)xform->rx_secy.validate_frames << 1) |
+			   (uint64_t)xform->rx_secy.ctrl_port_enable;
+	}
+
+	ret = roc_mcs_secy_policy_write(mcs_dev->mdev, &req);
+	if (ret) {
+		plt_err(" Failed to configure Tx SECY");
+		return -EINVAL;
+	}
+
+	if (xform->dir == RTE_SECURITY_MACSEC_DIR_RX) {
+		struct roc_mcs_rx_sc_cam_write_req rx_sc_cam = {0};
+
+		rx_sc_cam.sci = xform->sci;
+		rx_sc_cam.secy_id = secy_id & 0x3F;
+		rx_sc_cam.sc_id = xform->sc_id;
+		ret = roc_mcs_rx_sc_cam_write(mcs_dev->mdev, &rx_sc_cam);
+		if (ret) {
+			plt_err(" Failed to write rx_sc_cam");
+			return -EINVAL;
+		}
+	}
+	macsec_sess_priv->sci = xform->sci;
+	macsec_sess_priv->sc_id = xform->sc_id;
+	macsec_sess_priv->secy_id = secy_id;
+	macsec_sess_priv->dir = dir;
+	macsec_sess_priv->sess = sess;
+
+	TAILQ_INSERT_TAIL(&dev->mcs_list, macsec_sess_priv, entry);
+
+	return 0;
+}
+
+int
+cnxk_eth_macsec_session_destroy(struct cnxk_eth_dev *dev, struct rte_security_session *sess)
+{
+	struct cnxk_mcs_dev *mcs_dev = dev->mcs_dev;
+	struct roc_mcs_clear_stats stats_req = {0};
+	struct roc_mcs_free_rsrc_req req = {0};
+	struct cnxk_macsec_sess *s;
+	int ret = 0;
+
+	if (!roc_feature_nix_has_macsec())
+		return -ENOTSUP;
+
+	s = SECURITY_GET_SESS_PRIV(sess);
+
+	stats_req.type = CNXK_MCS_RSRC_TYPE_SECY;
+	stats_req.id = s->secy_id;
+	stats_req.dir = s->dir;
+	stats_req.all = 0;
+
+	ret = roc_mcs_stats_clear(mcs_dev->mdev, &stats_req);
+	if (ret)
+		plt_err("Failed to clear stats for SECY id %u, dir %u.", s->secy_id, s->dir);
+
+	req.rsrc_id = s->secy_id;
+	req.dir = s->dir;
+	req.rsrc_type = CNXK_MCS_RSRC_TYPE_SECY;
+
+	ret = roc_mcs_rsrc_free(mcs_dev->mdev, &req);
+	if (ret)
+		plt_err("Failed to free SC id.");
+
+	TAILQ_REMOVE(&dev->mcs_list, s, entry);
+
+	return ret;
+}
+
+int
+cnxk_mcs_flow_configure(struct rte_eth_dev *eth_dev, const struct rte_flow_attr *attr __rte_unused,
+			 const struct rte_flow_item pattern[],
+			 const struct rte_flow_action actions[],
+			 struct rte_flow_error *error __rte_unused, void **mcs_flow)
+{
+	struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
+	struct roc_mcs_flowid_entry_write_req req = {0};
+	const struct rte_flow_item_eth *eth_item = NULL;
+	struct cnxk_mcs_dev *mcs_dev = dev->mcs_dev;
+	struct cnxk_mcs_flow_opts opts = {0};
+	struct cnxk_macsec_sess *sess;
+	struct rte_ether_addr src;
+	struct rte_ether_addr dst;
+	int ret;
+	int i = 0;
+
+	if (!roc_feature_nix_has_macsec())
+		return -ENOTSUP;
+
+	sess = cnxk_eth_macsec_sess_get_by_sess(dev,
+			(const struct rte_security_session *)actions->conf);
+	if (sess == NULL)
+		return -EINVAL;
+
+	ret = mcs_resource_alloc(mcs_dev, sess->dir, &sess->flow_id, 1,
+				 CNXK_MCS_RSRC_TYPE_FLOWID);
+	if (ret) {
+		plt_err("Failed to allocate FLow id.");
+		return -ENOMEM;
+	}
+	req.sci = sess->sci;
+	req.flow_id = sess->flow_id;
+	req.secy_id = sess->secy_id;
+	req.sc_id = sess->sc_id;
+	req.ena = 1;
+	req.ctr_pkt = 0;
+	req.dir = sess->dir;
+
+	while (pattern[i].type != RTE_FLOW_ITEM_TYPE_END) {
+		if (pattern[i].type == RTE_FLOW_ITEM_TYPE_ETH)
+			eth_item = pattern[i].spec;
+		else
+			plt_err("Unhandled flow item : %d", pattern[i].type);
+		i++;
+	}
+	if (eth_item) {
+		dst = eth_item->hdr.dst_addr;
+		src = eth_item->hdr.src_addr;
+
+		/* Find ways to fill opts */
+
+		req.data[0] =
+			(uint64_t)dst.addr_bytes[0] << 40 | (uint64_t)dst.addr_bytes[1] << 32 |
+			(uint64_t)dst.addr_bytes[2] << 24 | (uint64_t)dst.addr_bytes[3] << 16 |
+			(uint64_t)dst.addr_bytes[4] << 8 | (uint64_t)dst.addr_bytes[5] |
+			(uint64_t)src.addr_bytes[5] << 48 | (uint64_t)src.addr_bytes[4] << 56;
+		req.data[1] = (uint64_t)src.addr_bytes[3] | (uint64_t)src.addr_bytes[2] << 8 |
+			      (uint64_t)src.addr_bytes[1] << 16 |
+			      (uint64_t)src.addr_bytes[0] << 24 |
+			      (uint64_t)eth_item->hdr.ether_type << 32 |
+			      ((uint64_t)opts.outer_tag_id & 0xFFFF) << 48;
+		req.data[2] = ((uint64_t)opts.outer_tag_id & 0xF0000) |
+			      ((uint64_t)opts.outer_priority & 0xF) << 4 |
+			      ((uint64_t)opts.second_outer_tag_id & 0xFFFFF) << 8 |
+			      ((uint64_t)opts.second_outer_priority & 0xF) << 28 |
+			      ((uint64_t)opts.bonus_data << 32) |
+			      ((uint64_t)opts.tag_match_bitmap << 48) |
+			      ((uint64_t)opts.packet_type & 0xF) << 56 |
+			      ((uint64_t)opts.outer_vlan_type & 0x7) << 60 |
+			      ((uint64_t)opts.inner_vlan_type & 0x1) << 63;
+		req.data[3] = ((uint64_t)opts.inner_vlan_type & 0x6) >> 1 |
+			      ((uint64_t)opts.num_tags & 0x7F) << 2 |
+			      ((uint64_t)opts.flowid_user & 0x1F) << 9 |
+			      ((uint64_t)opts.express & 1) << 14 |
+			      ((uint64_t)opts.lmac_id & 0x1F) << 15;
+
+		req.mask[0] = 0x0;
+		req.mask[1] = 0xFFFFFFFF00000000;
+		req.mask[2] = 0xFFFFFFFFFFFFFFFF;
+		req.mask[3] = 0xFFFFFFFFFFFFFFFF;
+
+		ret = roc_mcs_flowid_entry_write(mcs_dev->mdev, &req);
+		if (ret)
+			return ret;
+		*mcs_flow = (void *)(uintptr_t)actions->conf;
+	} else {
+		plt_err("Flow not confirured");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+int
+cnxk_mcs_flow_destroy(struct cnxk_eth_dev *dev, void *flow)
+{
+	const struct cnxk_macsec_sess *s = cnxk_eth_macsec_sess_get_by_sess(dev, flow);
+	struct cnxk_mcs_dev *mcs_dev = dev->mcs_dev;
+	struct roc_mcs_clear_stats stats_req = {0};
+	struct roc_mcs_free_rsrc_req req = {0};
+	int ret = 0;
+
+	if (!roc_feature_nix_has_macsec())
+		return -ENOTSUP;
+
+	if (s == NULL)
+		return 0;
+
+	stats_req.type = CNXK_MCS_RSRC_TYPE_FLOWID;
+	stats_req.id = s->flow_id;
+	stats_req.dir = s->dir;
+	stats_req.all = 0;
+
+	ret = roc_mcs_stats_clear(mcs_dev->mdev, &stats_req);
+	if (ret)
+		plt_err("Failed to clear stats for Flow id %u, dir %u.", s->flow_id, s->dir);
+
+	req.rsrc_id = s->flow_id;
+	req.dir = s->dir;
+	req.rsrc_type = CNXK_MCS_RSRC_TYPE_FLOWID;
+
+	ret = roc_mcs_rsrc_free(mcs_dev->mdev, &req);
+	if (ret)
+		plt_err("Failed to free flow_id: %d.", s->flow_id);
+
+	return ret;
+}
+
 static int
 cnxk_mcs_event_cb(void *userdata, struct roc_mcs_event_desc *desc, void *cb_arg)
 {
diff --git a/drivers/net/cnxk/cnxk_ethdev_mcs.h b/drivers/net/cnxk/cnxk_ethdev_mcs.h
index 68c6493169..2b1a6f2c90 100644
--- a/drivers/net/cnxk/cnxk_ethdev_mcs.h
+++ b/drivers/net/cnxk/cnxk_ethdev_mcs.h
@@ -21,6 +21,27 @@ enum cnxk_mcs_rsrc_type {
 	CNXK_MCS_RSRC_TYPE_PORT,
 };
 
+struct cnxk_mcs_flow_opts {
+	uint32_t outer_tag_id;
+	/**< {VLAN_ID[11:0]}, or 20-bit MPLS label*/
+	uint8_t outer_priority;
+	/**< {PCP/Pbits, DE/CFI} or {1'b0, EXP} for MPLS.*/
+	uint32_t second_outer_tag_id;
+	/**< {VLAN_ID[11:0]}, or 20-bit MPLS label*/
+	uint8_t second_outer_priority;
+	/**< {PCP/Pbits, DE/CFI} or {1'b0, EXP} for MPLS. */
+	uint16_t bonus_data;
+	/**< 2 bytes of additional bonus data extracted from one of the custom tags*/
+	uint8_t tag_match_bitmap;
+	uint8_t packet_type;
+	uint8_t outer_vlan_type;
+	uint8_t inner_vlan_type;
+	uint8_t num_tags;
+	bool express;
+	uint8_t lmac_id;
+	uint8_t flowid_user;
+};
+
 struct cnxk_mcs_event_data {
 	/* Valid for below events
 	 * - ROC_MCS_EVENT_RX_SA_PN_SOFT_EXP
@@ -75,3 +96,7 @@ int cnxk_eth_macsec_sa_destroy(void *device, uint16_t sa_id,
 			       enum rte_security_macsec_direction dir);
 int cnxk_eth_macsec_sc_destroy(void *device, uint16_t sc_id,
 			       enum rte_security_macsec_direction dir);
+
+int cnxk_eth_macsec_session_create(struct cnxk_eth_dev *dev, struct rte_security_session_conf *conf,
+				   struct rte_security_session *sess);
+int cnxk_eth_macsec_session_destroy(struct cnxk_eth_dev *dev, struct rte_security_session *sess);
diff --git a/drivers/net/cnxk/cnxk_ethdev_sec.c b/drivers/net/cnxk/cnxk_ethdev_sec.c
index a66d58ca61..dc17c128de 100644
--- a/drivers/net/cnxk/cnxk_ethdev_sec.c
+++ b/drivers/net/cnxk/cnxk_ethdev_sec.c
@@ -284,7 +284,7 @@ cnxk_eth_sec_sess_get_by_sess(struct cnxk_eth_dev *dev,
 static unsigned int
 cnxk_eth_sec_session_get_size(void *device __rte_unused)
 {
-	return sizeof(struct cnxk_eth_sec_sess);
+	return RTE_MAX(sizeof(struct cnxk_macsec_sess), sizeof(struct cnxk_eth_sec_sess));
 }
 
 struct rte_security_ops cnxk_eth_sec_ops = {
diff --git a/drivers/net/cnxk/cnxk_flow.c b/drivers/net/cnxk/cnxk_flow.c
index 9595fe9386..1bacb20784 100644
--- a/drivers/net/cnxk/cnxk_flow.c
+++ b/drivers/net/cnxk/cnxk_flow.c
@@ -300,6 +300,11 @@ cnxk_flow_validate(struct rte_eth_dev *eth_dev,
 	uint32_t flowkey_cfg = 0;
 	int rc;
 
+	/* Skip flow validation for MACsec. */
+	if (actions[0].type == RTE_FLOW_ACTION_TYPE_SECURITY &&
+	    cnxk_eth_macsec_sess_get_by_sess(dev, actions[0].conf) != NULL)
+		return 0;
+
 	memset(&flow, 0, sizeof(flow));
 	flow.is_validate = true;
 
-- 
2.25.1