[dpdk-dev] [PATCH 6/7] net/sfc: support port representor related flow actions

[Ivan Malov <ivan.malov@oktetlabs.ru>]

Add support for actions PORT_REPRESENTOR and REPRESENTED_PORT.

The former should be used instead of ambiguous PORT_ID.

The latter sends traffic to the entity represented by
the given ethdev (network port or VF).

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
---
 doc/guides/nics/features/sfc.ini |  2 +
 doc/guides/nics/sfc_efx.rst      |  4 ++
 drivers/net/sfc/sfc_mae.c        | 66 ++++++++++++++++++++++++++++++++
 3 files changed, 72 insertions(+)

diff --git a/doc/guides/nics/features/sfc.ini b/doc/guides/nics/features/sfc.ini
index c830426eb2..0d785f4765 100644
--- a/doc/guides/nics/features/sfc.ini
+++ b/doc/guides/nics/features/sfc.ini
@@ -73,6 +73,8 @@ of_set_vlan_vid      = Y
 pf                   = Y
 phy_port             = Y
 port_id              = Y
+port_representor     = Y
+represented_port     = Y
 queue                = Y
 rss                  = Y
 vf                   = Y
diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst
index 8dbd250b3c..960e25bf98 100644
--- a/doc/guides/nics/sfc_efx.rst
+++ b/doc/guides/nics/sfc_efx.rst
@@ -248,6 +248,10 @@ Supported actions (***transfer*** rules):
 
 - VF
 
+- PORT_REPRESENTOR
+
+- REPRESENTED_PORT
+
 - PORT_ID
 
 - COUNT
diff --git a/drivers/net/sfc/sfc_mae.c b/drivers/net/sfc/sfc_mae.c
index 8ec4036275..411f2ac27e 100644
--- a/drivers/net/sfc/sfc_mae.c
+++ b/drivers/net/sfc/sfc_mae.c
@@ -3488,6 +3488,58 @@ sfc_mae_rule_parse_action_port_id(struct sfc_adapter *sa,
 	return rc;
 }
 
+static int
+sfc_mae_rule_parse_action_port_representor(struct sfc_adapter *sa,
+		const struct rte_flow_action_ethdev *conf,
+		efx_mae_actions_t *spec)
+{
+	struct sfc_mae *mae = &sa->mae;
+	efx_mport_sel_t mport;
+	int rc;
+
+	rc = sfc_mae_switch_get_ethdev_mport(mae->switch_domain_id,
+					     conf->port_id, &mport);
+	if (rc != 0) {
+		sfc_err(sa, "failed to get m-port for the given ethdev (port_id=%u): %s",
+			conf->port_id, strerror(rc));
+		return rc;
+	}
+
+	rc = efx_mae_action_set_populate_deliver(spec, &mport);
+	if (rc != 0) {
+		sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
+			mport.sel, strerror(rc));
+	}
+
+	return rc;
+}
+
+static int
+sfc_mae_rule_parse_action_represented_port(struct sfc_adapter *sa,
+		const struct rte_flow_action_ethdev *conf,
+		efx_mae_actions_t *spec)
+{
+	struct sfc_mae *mae = &sa->mae;
+	efx_mport_sel_t mport;
+	int rc;
+
+	rc = sfc_mae_switch_get_entity_mport(mae->switch_domain_id,
+					     conf->port_id, &mport);
+	if (rc != 0) {
+		sfc_err(sa, "failed to get m-port for the given ethdev (port_id=%u): %s",
+			conf->port_id, strerror(rc));
+		return rc;
+	}
+
+	rc = efx_mae_action_set_populate_deliver(spec, &mport);
+	if (rc != 0) {
+		sfc_err(sa, "failed to request action DELIVER with m-port selector 0x%08x: %s",
+			mport.sel, strerror(rc));
+	}
+
+	return rc;
+}
+
 static const char * const action_names[] = {
 	[RTE_FLOW_ACTION_TYPE_VXLAN_DECAP] = "VXLAN_DECAP",
 	[RTE_FLOW_ACTION_TYPE_OF_POP_VLAN] = "OF_POP_VLAN",
@@ -3501,6 +3553,8 @@ static const char * const action_names[] = {
 	[RTE_FLOW_ACTION_TYPE_PF] = "PF",
 	[RTE_FLOW_ACTION_TYPE_VF] = "VF",
 	[RTE_FLOW_ACTION_TYPE_PORT_ID] = "PORT_ID",
+	[RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR] = "PORT_REPRESENTOR",
+	[RTE_FLOW_ACTION_TYPE_REPRESENTED_PORT] = "REPRESENTED_PORT",
 	[RTE_FLOW_ACTION_TYPE_DROP] = "DROP",
 	[RTE_FLOW_ACTION_TYPE_JUMP] = "JUMP",
 };
@@ -3609,6 +3663,18 @@ sfc_mae_rule_parse_action(struct sfc_adapter *sa,
 				       bundle->actions_mask);
 		rc = sfc_mae_rule_parse_action_port_id(sa, action->conf, spec);
 		break;
+	case RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR:
+		SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR,
+				       bundle->actions_mask);
+		rc = sfc_mae_rule_parse_action_port_representor(sa,
+				action->conf, spec);
+		break;
+	case RTE_FLOW_ACTION_TYPE_REPRESENTED_PORT:
+		SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_REPRESENTED_PORT,
+				       bundle->actions_mask);
+		rc = sfc_mae_rule_parse_action_represented_port(sa,
+				action->conf, spec);
+		break;
 	case RTE_FLOW_ACTION_TYPE_DROP:
 		SFC_BUILD_SET_OVERFLOW(RTE_FLOW_ACTION_TYPE_DROP,
 				       bundle->actions_mask);
-- 
2.20.1