[dpdk-dev] [PATCH v3 02/33] net/txgbe: add ntuple filter init and uninit

[Jiawen Wu <jiawenwu@trustnetic.com>]

Add ntuple filter init and uninit.

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
---
 drivers/net/txgbe/base/txgbe_type.h |  1 +
 drivers/net/txgbe/txgbe_ethdev.c    | 28 ++++++++++++++++++++++++
 drivers/net/txgbe/txgbe_ethdev.h    | 33 +++++++++++++++++++++++++++++
 3 files changed, 62 insertions(+)

diff --git a/drivers/net/txgbe/base/txgbe_type.h b/drivers/net/txgbe/base/txgbe_type.h
index b322a2cac..69aa8993a 100644
--- a/drivers/net/txgbe/base/txgbe_type.h
+++ b/drivers/net/txgbe/base/txgbe_type.h
@@ -15,6 +15,7 @@
 #define TXGBE_FRAME_SIZE_DFT	(1518) /* Default frame size, +FCS */
 #define TXGBE_NUM_POOL		(64)
 #define TXGBE_PBTXSIZE_MAX	0x00028000 /* 160KB Packet Buffer */
+#define TXGBE_MAX_FTQF_FILTERS	128
 #define TXGBE_TXPKT_SIZE_MAX	0xA /* Max Tx Packet size */
 #define TXGBE_MAX_UP		8
 #define TXGBE_MAX_QP		(128)
diff --git a/drivers/net/txgbe/txgbe_ethdev.c b/drivers/net/txgbe/txgbe_ethdev.c
index 0cd4c0908..1208e2f76 100644
--- a/drivers/net/txgbe/txgbe_ethdev.c
+++ b/drivers/net/txgbe/txgbe_ethdev.c
@@ -470,6 +470,7 @@ eth_txgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
 	struct txgbe_vfta *shadow_vfta = TXGBE_DEV_VFTA(eth_dev);
 	struct txgbe_hwstrip *hwstrip = TXGBE_DEV_HWSTRIP(eth_dev);
 	struct txgbe_dcb_config *dcb_config = TXGBE_DEV_DCB_CONFIG(eth_dev);
+	struct txgbe_filter_info *filter_info = TXGBE_DEV_FILTER(eth_dev);
 	struct txgbe_bw_conf *bw_conf = TXGBE_DEV_BW_CONF(eth_dev);
 	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
 	const struct rte_memzone *mz;
@@ -677,6 +678,13 @@ eth_txgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
 	/* enable support intr */
 	txgbe_enable_intr(eth_dev);
 
+	/* initialize filter info */
+	memset(filter_info, 0,
+	       sizeof(struct txgbe_filter_info));
+
+	/* initialize 5tuple filter list */
+	TAILQ_INIT(&filter_info->fivetuple_list);
+
 	/* initialize bandwidth configuration info */
 	memset(bw_conf, 0, sizeof(struct txgbe_bw_conf));
 
@@ -696,6 +704,23 @@ eth_txgbe_dev_uninit(struct rte_eth_dev *eth_dev)
 	return 0;
 }
 
+static int txgbe_ntuple_filter_uninit(struct rte_eth_dev *eth_dev)
+{
+	struct txgbe_filter_info *filter_info = TXGBE_DEV_FILTER(eth_dev);
+	struct txgbe_5tuple_filter *p_5tuple;
+
+	while ((p_5tuple = TAILQ_FIRST(&filter_info->fivetuple_list))) {
+		TAILQ_REMOVE(&filter_info->fivetuple_list,
+			     p_5tuple,
+			     entries);
+		rte_free(p_5tuple);
+	}
+	memset(filter_info->fivetuple_mask, 0,
+	       sizeof(uint32_t) * TXGBE_5TUPLE_ARRAY_SIZE);
+
+	return 0;
+}
+
 static int
 eth_txgbe_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 		struct rte_pci_device *pci_dev)
@@ -1774,6 +1799,9 @@ txgbe_dev_close(struct rte_eth_dev *dev)
 	rte_free(dev->data->hash_mac_addrs);
 	dev->data->hash_mac_addrs = NULL;
 
+	/* Remove all ntuple filters of the device */
+	txgbe_ntuple_filter_uninit(dev);
+
 	return ret;
 }
 
diff --git a/drivers/net/txgbe/txgbe_ethdev.h b/drivers/net/txgbe/txgbe_ethdev.h
index e4eab6342..ab3a5ea47 100644
--- a/drivers/net/txgbe/txgbe_ethdev.h
+++ b/drivers/net/txgbe/txgbe_ethdev.h
@@ -113,6 +113,36 @@ struct txgbe_vf_info {
 	uint16_t mac_count;
 };
 
+TAILQ_HEAD(txgbe_5tuple_filter_list, txgbe_5tuple_filter);
+
+struct txgbe_5tuple_filter_info {
+	uint32_t dst_ip;
+	uint32_t src_ip;
+	uint16_t dst_port;
+	uint16_t src_port;
+	enum txgbe_5tuple_protocol proto;        /* l4 protocol. */
+	uint8_t priority;        /* seven levels (001b-111b), 111b is highest,
+				  * used when more than one filter matches.
+				  */
+	uint8_t dst_ip_mask:1,   /* if mask is 1b, do not compare dst ip. */
+		src_ip_mask:1,   /* if mask is 1b, do not compare src ip. */
+		dst_port_mask:1, /* if mask is 1b, do not compare dst port. */
+		src_port_mask:1, /* if mask is 1b, do not compare src port. */
+		proto_mask:1;    /* if mask is 1b, do not compare protocol. */
+};
+
+/* 5tuple filter structure */
+struct txgbe_5tuple_filter {
+	TAILQ_ENTRY(txgbe_5tuple_filter) entries;
+	uint16_t index;       /* the index of 5tuple filter */
+	struct txgbe_5tuple_filter_info filter_info;
+	uint16_t queue;       /* rx queue assigned to */
+};
+
+#define TXGBE_5TUPLE_ARRAY_SIZE \
+	(RTE_ALIGN(TXGBE_MAX_FTQF_FILTERS, (sizeof(uint32_t) * NBBY)) / \
+	 (sizeof(uint32_t) * NBBY))
+
 struct txgbe_ethertype_filter {
 	uint16_t ethertype;
 	uint32_t etqf;
@@ -131,6 +161,9 @@ struct txgbe_filter_info {
 	uint8_t ethertype_mask;  /* Bit mask for every used ethertype filter */
 	/* store used ethertype filters*/
 	struct txgbe_ethertype_filter ethertype_filters[TXGBE_ETF_ID_MAX];
+	/* Bit mask for every used 5tuple filter */
+	uint32_t fivetuple_mask[TXGBE_5TUPLE_ARRAY_SIZE];
+	struct txgbe_5tuple_filter_list fivetuple_list;
 };
 
 /* The configuration of bandwidth */
-- 
2.18.2