ethdev: add physical port action to flow API

This patch adds the missing action counterpart to the PHY_PORT pattern
item, that is, the ability to directly inject matching traffic into a
physical port of the underlying device.

It breaks ABI compatibility for the following public functions:

- rte_flow_copy()
- rte_flow_create()
- rte_flow_query()
- rte_flow_validate()

Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Mohammad Abdul Awal <mohammad.abdul.awal@intel.com>

app/test-pmd/cmdline_flow.c

@@ -182,6 +182,9 @@ enum index {
 	ACTION_VF,
 	ACTION_VF_ORIGINAL,
 	ACTION_VF_ID,
+	ACTION_PHY_PORT,
+	ACTION_PHY_PORT_ORIGINAL,
+	ACTION_PHY_PORT_INDEX,
 	ACTION_METER,
 	ACTION_METER_ID,
 };
@@ -623,6 +626,7 @@ static const enum index next_action[] = {
 	ACTION_RSS,
 	ACTION_PF,
 	ACTION_VF,
+	ACTION_PHY_PORT,
 	ACTION_METER,
 	ZERO,
 };
@@ -657,6 +661,13 @@ static const enum index action_vf[] = {
 	ZERO,
 };
 
+static const enum index action_phy_port[] = {
+	ACTION_PHY_PORT_ORIGINAL,
+	ACTION_PHY_PORT_INDEX,
+	ACTION_NEXT,
+	ZERO,
+};
+
 static const enum index action_meter[] = {
 	ACTION_METER_ID,
 	ACTION_NEXT,
@@ -1714,6 +1725,30 @@ static const struct token token_list[] = {
 		.args = ARGS(ARGS_ENTRY(struct rte_flow_action_vf, id)),
 		.call = parse_vc_conf,
 	},
+	[ACTION_PHY_PORT] = {
+		.name = "phy_port",
+		.help = "direct packets to physical port index",
+		.priv = PRIV_ACTION(PHY_PORT,
+				    sizeof(struct rte_flow_action_phy_port)),
+		.next = NEXT(action_phy_port),
+		.call = parse_vc,
+	},
+	[ACTION_PHY_PORT_ORIGINAL] = {
+		.name = "original",
+		.help = "use original port index if possible",
+		.next = NEXT(action_phy_port, NEXT_ENTRY(BOOLEAN)),
+		.args = ARGS(ARGS_ENTRY_BF(struct rte_flow_action_phy_port,
+					   original, 1)),
+		.call = parse_vc_conf,
+	},
+	[ACTION_PHY_PORT_INDEX] = {
+		.name = "index",
+		.help = "physical port index",
+		.next = NEXT(action_phy_port, NEXT_ENTRY(UNSIGNED)),
+		.args = ARGS(ARGS_ENTRY(struct rte_flow_action_phy_port,
+					index)),
+		.call = parse_vc_conf,
+	},
 	[ACTION_METER] = {
 		.name = "meter",
 		.help = "meter the directed packets at given id",

app/test-pmd/config.c

@@ -1091,6 +1091,7 @@ static const struct {
 	MK_FLOW_ACTION(RSS, sizeof(struct rte_flow_action_rss)),
 	MK_FLOW_ACTION(PF, 0),
 	MK_FLOW_ACTION(VF, sizeof(struct rte_flow_action_vf)),
+	MK_FLOW_ACTION(PHY_PORT, sizeof(struct rte_flow_action_phy_port)),
 	MK_FLOW_ACTION(METER, sizeof(struct rte_flow_action_meter)),
 };
 

doc/guides/prog_guide/rte_flow.rst

@@ -1433,6 +1433,26 @@ See `Item: VF`_.
    | ``id``       | VF ID                          |
    +--------------+--------------------------------+
 
+Action: ``PHY_PORT``
+^^^^^^^^^^^^^^^^^^^^
+
+Directs matching traffic to a given physical port index of the underlying
+device.
+
+See `Item: PHY_PORT`_.
+
+.. _table_rte_flow_action_phy_port:
+
+.. table:: PHY_PORT
+
+   +--------------+-------------------------------------+
+   | Field        | Value                               |
+   +==============+=====================================+
+   | ``original`` | use original port index if possible |
+   +--------------+-------------------------------------+
+   | ``index``    | physical port index                 |
+   +--------------+-------------------------------------+
+
 Action: ``METER``
 ^^^^^^^^^^^^^^^^^
 

doc/guides/rel_notes/release_18_05.rst

@@ -288,6 +288,8 @@ API Changes
     consistency.
   * Pattern item PORT was renamed PHY_PORT to avoid confusion with DPDK port
     IDs.
+  * An action counterpart to the PHY_PORT pattern item was added in order to
+    redirect matching traffic to a specific physical port.
 
 
 ABI Changes

doc/guides/testpmd_app_ug/testpmd_funcs.rst

@@ -3447,6 +3447,11 @@ This section lists supported actions and their attributes, if any.
   - ``original {boolean}``: use original VF ID if possible.
   - ``id {unsigned}``: VF ID.
 
+- ``phy_port``: direct packets to physical port index.
+
+  - ``original {boolean}``: use original port index if possible.
+  - ``index {unsigned}``: physical port index.
+
 Destroying flow rules
 ~~~~~~~~~~~~~~~~~~~~~
 

lib/librte_ether/rte_flow.c

@@ -76,6 +76,7 @@ static const struct rte_flow_desc_data rte_flow_desc_action[] = {
 	MK_FLOW_ACTION(RSS, sizeof(struct rte_flow_action_rss)),
 	MK_FLOW_ACTION(PF, 0),
 	MK_FLOW_ACTION(VF, sizeof(struct rte_flow_action_vf)),
+	MK_FLOW_ACTION(PHY_PORT, sizeof(struct rte_flow_action_phy_port)),
 };
 
 static int

lib/librte_ether/rte_flow.h

@@ -988,6 +988,14 @@ enum rte_flow_action_type {
 	 */
 	RTE_FLOW_ACTION_TYPE_VF,
 
+	/**
+	 * Directs packets to a given physical port index of the underlying
+	 * device.
+	 *
+	 * See struct rte_flow_action_phy_port.
+	 */
+	RTE_FLOW_ACTION_TYPE_PHY_PORT,
+
 	/**
 	 * Traffic metering and policing (MTR).
 	 *
@@ -1111,6 +1119,20 @@ struct rte_flow_action_vf {
 	uint32_t id; /**< VF ID. */
 };
 
+/**
+ * RTE_FLOW_ACTION_TYPE_PHY_PORT
+ *
+ * Directs packets to a given physical port index of the underlying
+ * device.
+ *
+ * @see RTE_FLOW_ITEM_TYPE_PHY_PORT
+ */
+struct rte_flow_action_phy_port {
+	uint32_t original:1; /**< Use original port index if possible. */
+	uint32_t reserved:31; /**< Reserved, must be zero. */
+	uint32_t index; /**< Physical port index. */
+};
+
 /**
  * RTE_FLOW_ACTION_TYPE_METER
  *