[dpdk-dev] [PATCH v5 3/5] net/i40e: add new functions to manipulate with pctype mapping table

[Kirill Rybalchenko]

Add new functions which allow modify, return or reset to default
the contents of flow type to pctype dynamic mapping table.

v3:
Function rte_pmd_i40e_flow_type_mapping_get returns now full
mapping table.

v4:
Fix typo in rte_pmd_i40e_version.map file.

v5:
Fix code style warnings.

Signed-off-by: Kirill Rybalchenko <kirill.rybalchenko at intel.com>
---
 drivers/net/i40e/rte_pmd_i40e.c           | 94 +++++++++++++++++++++++++++++++
 drivers/net/i40e/rte_pmd_i40e.h           | 55 ++++++++++++++++++
 drivers/net/i40e/rte_pmd_i40e_version.map |  3 +
 3 files changed, 152 insertions(+)

diff --git a/drivers/net/i40e/rte_pmd_i40e.c b/drivers/net/i40e/rte_pmd_i40e.c
index c08e07a..3b4582d 100644
--- a/drivers/net/i40e/rte_pmd_i40e.c
+++ b/drivers/net/i40e/rte_pmd_i40e.c
@@ -2161,3 +2161,97 @@ rte_pmd_i40e_add_vf_mac_addr(uint8_t port, uint16_t vf_id,
 
 	return 0;
 }
+
+int rte_pmd_i40e_flow_type_mapping_reset(uint8_t port)
+{
+	struct rte_eth_dev *dev;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+	dev = &rte_eth_devices[port];
+
+	if (!is_i40e_supported(dev))
+		return -ENOTSUP;
+
+	i40e_set_default_pctype_table(dev);
+
+	return 0;
+}
+
+int rte_pmd_i40e_flow_type_mapping_get(
+			uint8_t port,
+			struct rte_pmd_i40e_flow_type_mapping *mapping_items)
+{
+	struct rte_eth_dev *dev;
+	struct i40e_adapter *ad;
+	uint16_t i;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+	dev = &rte_eth_devices[port];
+
+	if (!is_i40e_supported(dev))
+		return -ENOTSUP;
+
+	ad = I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+
+	for (i = 0; i < I40E_FLOW_TYPE_MAX; i++) {
+		mapping_items[i].flow_type = i;
+		mapping_items[i].pctype = ad->pctypes_tbl[i];
+	}
+
+	return 0;
+}
+
+int
+rte_pmd_i40e_flow_type_mapping_update(
+			uint8_t port,
+			struct rte_pmd_i40e_flow_type_mapping *mapping_items,
+			uint16_t count,
+			uint8_t exclusive)
+{
+	struct rte_eth_dev *dev;
+	struct i40e_adapter *ad;
+	int i;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+	dev = &rte_eth_devices[port];
+
+	if (!is_i40e_supported(dev))
+		return -ENOTSUP;
+
+	if (count > I40E_FLOW_TYPE_MAX)
+		return -EINVAL;
+
+	for (i = 0; i < count; i++)
+		if (mapping_items[i].flow_type >= I40E_FLOW_TYPE_MAX ||
+		    mapping_items[i].flow_type == RTE_ETH_FLOW_UNKNOWN ||
+		    (mapping_items[i].pctype &
+		    (1ULL << I40E_FILTER_PCTYPE_INVALID)))
+			return -EINVAL;
+
+	ad = I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+
+	if (exclusive) {
+		for (i = 0; i < I40E_FLOW_TYPE_MAX; i++)
+			ad->pctypes_tbl[i] = 0ULL;
+		ad->flow_types_mask = 0ULL;
+	}
+
+	for (i = 0; i < count; i++) {
+		ad->pctypes_tbl[mapping_items[i].flow_type] =
+						mapping_items[i].pctype;
+		if (mapping_items[i].pctype)
+			ad->flow_types_mask |=
+					(1ULL << mapping_items[i].flow_type);
+		else
+			ad->flow_types_mask &=
+					~(1ULL << mapping_items[i].flow_type);
+	}
+
+	for (i = 0, ad->pctypes_mask = 0ULL; i < I40E_FLOW_TYPE_MAX; i++)
+		ad->pctypes_mask |= ad->pctypes_tbl[i];
+
+	return 0;
+}
diff --git a/drivers/net/i40e/rte_pmd_i40e.h b/drivers/net/i40e/rte_pmd_i40e.h
index 155b7e8..004a8a5 100644
--- a/drivers/net/i40e/rte_pmd_i40e.h
+++ b/drivers/net/i40e/rte_pmd_i40e.h
@@ -657,4 +657,59 @@ int rte_pmd_i40e_ptype_mapping_replace(uint8_t port,
 int rte_pmd_i40e_add_vf_mac_addr(uint8_t port, uint16_t vf_id,
 				 struct ether_addr *mac_addr);
 
+#define RTE_PMD_I40E_PCTYPE_MAX		64
+#define RTE_PMD_I40E_FLOW_TYPE_MAX	64
+
+struct rte_pmd_i40e_flow_type_mapping {
+	uint16_t flow_type; /**< software defined flow type*/
+	uint64_t pctype;    /**< hardware defined pctype */
+};
+
+/**
+ * Update hardware defined pctype to software defined flow type
+ * mapping table.
+ *
+ * @param port
+ *    pointer to port identifier of the device.
+ * @param mapping_items
+ *    the base address of the mapping items array.
+ * @param count
+ *    number of mapping items.
+ * @param exclusive
+ *    the flag indicate different pctype mapping update method.
+ *    -(0) only overwrite referred PCTYPE mapping,
+ *	keep other PCTYPEs mapping unchanged.
+ *    -(!0) overwrite referred PCTYPE mapping,
+ *	set other PCTYPEs maps to PCTYPE_INVALID.
+ */
+int rte_pmd_i40e_flow_type_mapping_update(
+			uint8_t port,
+			struct rte_pmd_i40e_flow_type_mapping *mapping_items,
+			uint16_t count,
+			uint8_t exclusive);
+
+/**
+ * Get software defined flow type to hardware defined pctype
+ * mapping items.
+ *
+ * @param port
+ *    pointer to port identifier of the device.
+ * @param mapping_items
+ *    the base address of the array to store returned items.
+ *    array should be allocated by caller with minimum size of
+ *    RTE_PMD_I40E_FLOW_TYPE_MAX items
+ */
+int rte_pmd_i40e_flow_type_mapping_get(
+			uint8_t port,
+			struct rte_pmd_i40e_flow_type_mapping *mapping_items);
+
+/**
+ * Reset hardware defined pctype to software defined flow type
+ * mapping table to default.
+ *
+ * @param port
+ *    pointer to port identifier of the device
+ */
+int rte_pmd_i40e_flow_type_mapping_reset(uint8_t port);
+
 #endif /* _PMD_I40E_H_ */
diff --git a/drivers/net/i40e/rte_pmd_i40e_version.map b/drivers/net/i40e/rte_pmd_i40e_version.map
index ef8882b..9292454 100644
--- a/drivers/net/i40e/rte_pmd_i40e_version.map
+++ b/drivers/net/i40e/rte_pmd_i40e_version.map
@@ -50,5 +50,8 @@ DPDK_17.11 {
 	global:
 
 	rte_pmd_i40e_add_vf_mac_addr;
+	rte_pmd_i40e_flow_type_mapping_update;
+	rte_pmd_i40e_flow_type_mapping_get;
+	rte_pmd_i40e_flow_type_mapping_reset;
 
 } DPDK_17.08;
-- 
2.5.5