[dpdk-dev] [PATCH v7 07/10] i40e:implement the API of VxLAN filter in librte_pmd_i40e

[Jijiang Liu <jijiang.liu@intel.com>]

The filter types supported are listed below for VxLAN:
   1. Inner MAC and Inner VLAN ID.
   2. Inner MAC address, inner VLAN ID and tenant ID.
   3. Inner MAC and tenant ID.
   4. Inner MAC address.
   5. Outer MAC address, tenant ID and inner MAC address.

Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
---
 lib/librte_pmd_i40e/i40e_ethdev.c |  174 ++++++++++++++++++++++++++++++++++++-
 1 files changed, 172 insertions(+), 2 deletions(-)

diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c b/lib/librte_pmd_i40e/i40e_ethdev.c
index eb643e5..be83268 100644
--- a/lib/librte_pmd_i40e/i40e_ethdev.c
+++ b/lib/librte_pmd_i40e/i40e_ethdev.c
@@ -48,6 +48,7 @@
 #include <rte_malloc.h>
 #include <rte_memcpy.h>
 #include <rte_dev.h>
+#include <rte_eth_ctrl.h>
 
 #include "i40e_logs.h"
 #include "i40e/i40e_register_x710_int.h"
@@ -4099,6 +4100,108 @@ i40e_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
 }
 
 static int
+i40e_dev_get_filter_type(uint16_t filter_type, uint16_t *flag)
+{
+	switch (filter_type) {
+	case RTE_TUNNEL_FILTER_IMAC_IVLAN:
+		*flag = I40E_AQC_ADD_CLOUD_FILTER_IMAC_IVLAN;
+		break;
+	case RTE_TUNNEL_FILTER_IMAC_IVLAN_TENID:
+		*flag = I40E_AQC_ADD_CLOUD_FILTER_IMAC_IVLAN_TEN_ID;
+		break;
+	case RTE_TUNNEL_FILTER_IMAC_TENID:
+		*flag = I40E_AQC_ADD_CLOUD_FILTER_IMAC_TEN_ID;
+		break;
+	case RTE_TUNNEL_FILTER_OMAC_TENID_IMAC:
+		*flag = I40E_AQC_ADD_CLOUD_FILTER_OMAC_TEN_ID_IMAC;
+		break;
+	case ETH_TUNNEL_FILTER_IMAC:
+		*flag = I40E_AQC_ADD_CLOUD_FILTER_IMAC;
+		break;
+	default:
+		PMD_DRV_LOG(ERR, "invalid tunnel filter type\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int
+i40e_dev_tunnel_filter_set(struct i40e_pf *pf,
+			struct rte_eth_tunnel_filter_conf *tunnel_filter,
+			uint8_t add)
+{
+	uint16_t ip_type;
+	uint8_t tun_type = 0;
+	int val, ret = 0;
+	struct i40e_hw *hw = I40E_PF_TO_HW(pf);
+	struct i40e_vsi *vsi = pf->main_vsi;
+	struct i40e_aqc_add_remove_cloud_filters_element_data  *cld_filter;
+	struct i40e_aqc_add_remove_cloud_filters_element_data  *pfilter;
+
+	cld_filter = rte_zmalloc("tunnel_filter",
+		sizeof(struct i40e_aqc_add_remove_cloud_filters_element_data),
+		0);
+
+	if (NULL == cld_filter) {
+		PMD_DRV_LOG(ERR, "Failed to alloc memory.\n");
+		return -EINVAL;
+	}
+	pfilter = cld_filter;
+
+	(void)rte_memcpy(&pfilter->outer_mac, tunnel_filter->outer_mac,
+			sizeof(struct ether_addr));
+	(void)rte_memcpy(&pfilter->inner_mac, tunnel_filter->inner_mac,
+			sizeof(struct ether_addr));
+
+	pfilter->inner_vlan = tunnel_filter->inner_vlan;
+	if (tunnel_filter->ip_type == RTE_TUNNEL_IPTYPE_IPV4) {
+		ip_type = I40E_AQC_ADD_CLOUD_FLAGS_IPV4;
+		(void)rte_memcpy(&pfilter->ipaddr.v4.data,
+				&tunnel_filter->ip_addr,
+				sizeof(pfilter->ipaddr.v4.data));
+	} else {
+		ip_type = I40E_AQC_ADD_CLOUD_FLAGS_IPV6;
+		(void)rte_memcpy(&pfilter->ipaddr.v6.data,
+				&tunnel_filter->ip_addr,
+				sizeof(pfilter->ipaddr.v6.data));
+	}
+
+	/* check tunneled type */
+	switch (tunnel_filter->tunnel_type) {
+	case RTE_TUNNEL_TYPE_VXLAN:
+		tun_type = I40E_AQC_ADD_CLOUD_TNL_TYPE_XVLAN;
+		break;
+	default:
+		/* Other tunnel types is not supported. */
+		PMD_DRV_LOG(ERR, "tunnel type is not supported.\n");
+		rte_free(cld_filter);
+		return -EINVAL;
+	}
+
+	val = i40e_dev_get_filter_type(tunnel_filter->filter_type,
+						&pfilter->flags);
+	if (val < 0) {
+		rte_free(cld_filter);
+		return -EINVAL;
+	}
+
+	pfilter->flags |= I40E_AQC_ADD_CLOUD_FLAGS_TO_QUEUE | ip_type |
+		(tun_type << I40E_AQC_ADD_CLOUD_TNL_TYPE_SHIFT);
+	pfilter->tenant_id = tunnel_filter->tenant_id;
+	pfilter->queue_number = tunnel_filter->queue_id;
+
+	if (add)
+		ret = i40e_aq_add_cloud_filters(hw, vsi->seid, cld_filter, 1);
+	else
+		ret = i40e_aq_remove_cloud_filters(hw, vsi->seid,
+						cld_filter, 1);
+
+	rte_free(cld_filter);
+	return ret;
+}
+
+static int
 i40e_get_vxlan_port_idx(struct i40e_pf *pf, uint16_t port)
 {
 	uint8_t i;
@@ -4286,6 +4389,72 @@ i40e_pf_config_rss(struct i40e_pf *pf)
 }
 
 static int
+i40e_tunnel_filter_param_check(struct i40e_pf *pf,
+			struct rte_eth_tunnel_filter_conf *filter)
+{
+	if (pf == NULL || filter == NULL) {
+		PMD_DRV_LOG(ERR, "Invalid parameter\n");
+		return -EINVAL;
+	}
+
+	if (filter->queue_id >= pf->dev_data->nb_rx_queues) {
+		PMD_DRV_LOG(ERR, "Invalid queue ID\n");
+		return -EINVAL;
+	}
+
+	if (filter->inner_vlan > ETHER_MAX_VLAN_ID) {
+		PMD_DRV_LOG(ERR, "Invalid inner VLAN ID\n");
+		return -EINVAL;
+	}
+
+	if ((filter->filter_type & ETH_TUNNEL_FILTER_OMAC) &&
+		(is_zero_ether_addr(filter->outer_mac))) {
+		PMD_DRV_LOG(ERR, "Cannot add NULL outer MAC address\n");
+		return -EINVAL;
+	}
+
+	if ((filter->filter_type & ETH_TUNNEL_FILTER_IMAC) &&
+		(is_zero_ether_addr(filter->inner_mac))) {
+		PMD_DRV_LOG(ERR, "Cannot add NULL inner MAC address\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int
+i40e_tunnel_filter_handle(struct rte_eth_dev *dev, enum rte_filter_op filter_op,
+			void *arg)
+{
+	struct rte_eth_tunnel_filter_conf *filter;
+	struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+	int ret = I40E_SUCCESS;
+
+	filter = (struct rte_eth_tunnel_filter_conf *)(arg);
+
+	if (i40e_tunnel_filter_param_check(pf, filter) < 0)
+		return I40E_ERR_PARAM;
+
+	switch (filter_op) {
+	case RTE_ETH_FILTER_NOP:
+		if (!(pf->flags & I40E_FLAG_VXLAN))
+			ret = I40E_NOT_SUPPORTED;
+	case RTE_ETH_FILTER_ADD:
+		ret = i40e_dev_tunnel_filter_set(pf, filter, 1);
+		break;
+	case RTE_ETH_FILTER_DELETE:
+		ret = i40e_dev_tunnel_filter_set(pf, filter, 0);
+		break;
+	default:
+		PMD_DRV_LOG(ERR, "unknown operation %u\n", filter_op);
+		ret = I40E_ERR_PARAM;
+		break;
+	}
+
+	return ret;
+}
+
+static int
 i40e_pf_config_mq_rx(struct i40e_pf *pf)
 {
 	if (!pf->dev_data->sriov.active) {
@@ -4309,13 +4478,14 @@ i40e_dev_filter_ctrl(struct rte_eth_dev *dev,
 		     void *arg)
 {
 	int ret = 0;
-	(void)filter_op;
-	(void)arg;
 
 	if (dev == NULL)
 		return -EINVAL;
 
 	switch (filter_type) {
+	case RTE_ETH_FILTER_TUNNEL:
+		ret = i40e_tunnel_filter_handle(dev, filter_op, arg);
+		break;
 	default:
 		PMD_DRV_LOG(WARNING, "Filter type (%d) not supported",
 							filter_type);
-- 
1.7.7.6