net/txgbe: support syn filter add and delete

Support add and delete operations on syn filter.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>

diff --git a/drivers/net/txgbe/txgbe_ethdev.c b/drivers/net/txgbe/txgbe_ethdev.c
index a3d18e6..e8362c0 100644 (file)
--- a/drivers/net/txgbe/txgbe_ethdev.c
+++ b/drivers/net/txgbe/txgbe_ethdev.c
@@ -3511,6 +3511,44 @@ txgbe_set_queue_rate_limit(struct rte_eth_dev *dev,
        return 0;
 }
 
+int
+txgbe_syn_filter_set(struct rte_eth_dev *dev,
+                       struct rte_eth_syn_filter *filter,
+                       bool add)
+{
+       struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+       struct txgbe_filter_info *filter_info = TXGBE_DEV_FILTER(dev);
+       uint32_t syn_info;
+       uint32_t synqf;
+
+       if (filter->queue >= TXGBE_MAX_RX_QUEUE_NUM)
+               return -EINVAL;
+
+       syn_info = filter_info->syn_info;
+
+       if (add) {
+               if (syn_info & TXGBE_SYNCLS_ENA)
+                       return -EINVAL;
+               synqf = (uint32_t)TXGBE_SYNCLS_QPID(filter->queue);
+               synqf |= TXGBE_SYNCLS_ENA;
+
+               if (filter->hig_pri)
+                       synqf |= TXGBE_SYNCLS_HIPRIO;
+               else
+                       synqf &= ~TXGBE_SYNCLS_HIPRIO;
+       } else {
+               synqf = rd32(hw, TXGBE_SYNCLS);
+               if (!(syn_info & TXGBE_SYNCLS_ENA))
+                       return -ENOENT;
+               synqf &= ~(TXGBE_SYNCLS_QPID_MASK | TXGBE_SYNCLS_ENA);
+       }
+
+       filter_info->syn_info = synqf;
+       wr32(hw, TXGBE_SYNCLS, synqf);
+       txgbe_flush(hw);
+       return 0;
+}
+
 static inline enum txgbe_5tuple_protocol
 convert_protocol_type(uint8_t protocol_value)
 {
@@ -4445,11 +4483,28 @@ txgbe_ethertype_filter_restore(struct rte_eth_dev *dev)
        }
 }
 
+/* restore SYN filter */
+static inline void
+txgbe_syn_filter_restore(struct rte_eth_dev *dev)
+{
+       struct txgbe_hw *hw = TXGBE_DEV_HW(dev);
+       struct txgbe_filter_info *filter_info = TXGBE_DEV_FILTER(dev);
+       uint32_t synqf;
+
+       synqf = filter_info->syn_info;
+
+       if (synqf & TXGBE_SYNCLS_ENA) {
+               wr32(hw, TXGBE_SYNCLS, synqf);
+               txgbe_flush(hw);
+       }
+}
+
 static int
 txgbe_filter_restore(struct rte_eth_dev *dev)
 {
        txgbe_ntuple_filter_restore(dev);
        txgbe_ethertype_filter_restore(dev);
+       txgbe_syn_filter_restore(dev);
 
        return 0;
 }

diff --git a/drivers/net/txgbe/txgbe_ethdev.h b/drivers/net/txgbe/txgbe_ethdev.h
index 1e8ba8a..6f365eb 100644 (file)
--- a/drivers/net/txgbe/txgbe_ethdev.h
+++ b/drivers/net/txgbe/txgbe_ethdev.h
@@ -167,6 +167,8 @@ struct txgbe_filter_info {
        /* Bit mask for every used 5tuple filter */
        uint32_t fivetuple_mask[TXGBE_5TUPLE_ARRAY_SIZE];
        struct txgbe_5tuple_filter_list fivetuple_list;
+       /* store the SYN filter info */
+       uint32_t syn_info;
 };
 
 /* The configuration of bandwidth */
@@ -323,6 +325,9 @@ int txgbe_add_del_ntuple_filter(struct rte_eth_dev *dev,
 int txgbe_add_del_ethertype_filter(struct rte_eth_dev *dev,
                        struct rte_eth_ethertype_filter *filter,
                        bool add);
+int txgbe_syn_filter_set(struct rte_eth_dev *dev,
+                       struct rte_eth_syn_filter *filter,
+                       bool add);
 
 void txgbe_set_ivar_map(struct txgbe_hw *hw, int8_t direction,
                               uint8_t queue, uint8_t msix_vector);