[dpdk-dev] [PATCH 4/6] i40e: function implement in i40e for flow director filter programming

[Jingjing Wu <jingjing.wu@intel.com>]

support the API ops defined in ethdev, the behavior according to each command:

  RTE_CMD_FDIR_RULE_ADD: add a new FDIR filter rule.
  RTE_CMD_FDIR_RULE_DEL: delete a FDIR filter rule. 
  RTE_CMD_FDIR_FLUSH   : clear all FDIR filter rules.
  RTE_CMD_FDIR_INFO_GET: get FDIR information.

Signed-off-by: jingjing.wu <jingjing.wu@intel.com>
---
 lib/librte_pmd_i40e/Makefile      |   4 +
 lib/librte_pmd_i40e/i40e_ethdev.c |  53 +++++++++
 lib/librte_pmd_i40e/i40e_ethdev.h |  10 ++
 lib/librte_pmd_i40e/i40e_fdir.c   | 220 ++++++++++++++++++++++++++++++++++++++
 lib/librte_pmd_i40e/rte_i40e.h    | 125 ++++++++++++++++++++++
 5 files changed, 412 insertions(+)
 create mode 100644 lib/librte_pmd_i40e/rte_i40e.h

diff --git a/lib/librte_pmd_i40e/Makefile b/lib/librte_pmd_i40e/Makefile
index 6537654..3da20c5 100644
--- a/lib/librte_pmd_i40e/Makefile
+++ b/lib/librte_pmd_i40e/Makefile
@@ -88,6 +88,10 @@ SRCS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += i40e_rxtx.c
 SRCS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += i40e_ethdev_vf.c
 SRCS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += i40e_pf.c
 SRCS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += i40e_fdir.c
+
+# install this header file
+SYMLINK-$(CONFIG_RTE_LIBRTE_I40E_PMD)-include := rte_i40e.h
+
 # this lib depends upon:
 DEPDIRS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += lib/librte_eal lib/librte_ether
 DEPDIRS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += lib/librte_mempool lib/librte_mbuf
diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c b/lib/librte_pmd_i40e/i40e_ethdev.c
index 47125c7..c4637be 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_features.h>
 
 #include "i40e_logs.h"
 #include "i40e/i40e_register_x710_int.h"
@@ -203,6 +204,9 @@ static int i40e_dev_rss_hash_update(struct rte_eth_dev *dev,
 				    struct rte_eth_rss_conf *rss_conf);
 static int i40e_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
 				      struct rte_eth_rss_conf *rss_conf);
+static int i40e_rx_classification_filter_ctl(struct rte_eth_dev *dev,
+					     enum rte_eth_command cmd,
+					     void *args);
 
 /* Default hash key buffer for RSS */
 static uint32_t rss_key_default[I40E_PFQF_HKEY_MAX_INDEX + 1];
@@ -248,6 +252,7 @@ static struct eth_dev_ops i40e_eth_dev_ops = {
 	.reta_query                   = i40e_dev_rss_reta_query,
 	.rss_hash_update              = i40e_dev_rss_hash_update,
 	.rss_hash_conf_get            = i40e_dev_rss_hash_conf_get,
+	.rx_classification_filter_ctl = i40e_rx_classification_filter_ctl,
 };
 
 static struct eth_driver rte_i40e_pmd = {
@@ -3984,3 +3989,51 @@ i40e_pf_config_mq_rx(struct i40e_pf *pf)
 
 	return 0;
 }
+
+static int
+i40e_rx_classification_filter_ctl(struct rte_eth_dev *dev,
+				  enum rte_eth_command cmd,
+				  void *args)
+{
+	struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+	struct rte_i40e_fdir_entry *fdir_entry;
+	struct rte_i40e_fdir_info *fdir_info;
+	int ret = I40E_SUCCESS;
+
+	switch (cmd) {
+	case RTE_CMD_FDIR_RULE_ADD:
+		if (args == NULL)
+			return I40E_ERR_PARAM;
+		fdir_entry = (struct rte_i40e_fdir_entry *)args;
+		ret = i40e_fdir_filter_programming(pf,
+			fdir_entry->soft_id,
+			&fdir_entry->input,
+			&fdir_entry->action,
+			TRUE);
+		break;
+	case RTE_CMD_FDIR_RULE_DEL:
+		if (args == NULL)
+			return I40E_ERR_PARAM;
+		fdir_entry = (struct rte_i40e_fdir_entry *)args;
+		ret = i40e_fdir_filter_programming(pf,
+			fdir_entry->soft_id,
+			&fdir_entry->input,
+			&fdir_entry->action,
+			FALSE);
+		break;
+	case RTE_CMD_FDIR_INFO_GET:
+		if (args == NULL)
+			return I40E_ERR_PARAM;
+		fdir_info = (struct rte_i40e_fdir_info *)args;
+		i40e_fdir_info_get(dev, fdir_info);
+		break;
+	case RTE_CMD_FDIR_FLUSH:
+		ret = i40e_fdir_flush(pf);
+		break;
+	default:
+		PMD_DRV_LOG(ERR, "unknown command type %u\n", cmd);
+		ret = I40E_ERR_PARAM;
+		break;
+	}
+	return ret;
+}
diff --git a/lib/librte_pmd_i40e/i40e_ethdev.h b/lib/librte_pmd_i40e/i40e_ethdev.h
index c2c7fa9..7755f5a 100644
--- a/lib/librte_pmd_i40e/i40e_ethdev.h
+++ b/lib/librte_pmd_i40e/i40e_ethdev.h
@@ -34,6 +34,8 @@
 #ifndef _I40E_ETHDEV_H_
 #define _I40E_ETHDEV_H_
 
+#include "rte_i40e.h"
+
 #define I40E_AQ_LEN               32
 #define I40E_AQ_BUF_SZ            4096
 /* Number of queues per TC should be one of 1, 2, 4, 8, 16, 32, 64 */
@@ -332,6 +334,14 @@ i40e_fdir_setup_rx_resources(struct i40e_pf *pf,
 				    unsigned int socket_id);
 int i40e_fdir_setup(struct i40e_pf *pf);
 void i40e_fdir_teardown(struct i40e_pf *pf);
+int i40e_fdir_flush(struct i40e_pf *pf);
+int i40e_fdir_filter_programming(struct i40e_pf *pf,
+			uint16_t soft_id,
+			struct rte_i40e_fdir_input *fdir_filter,
+			struct rte_i40e_fdir_action *fdir_action,
+			bool add);
+void i40e_fdir_info_get(struct rte_eth_dev *dev,
+			   struct rte_i40e_fdir_info *fdir);
 
 /* I40E_DEV_PRIVATE_TO */
 #define I40E_DEV_PRIVATE_TO_PF(adapter) \
diff --git a/lib/librte_pmd_i40e/i40e_fdir.c b/lib/librte_pmd_i40e/i40e_fdir.c
index ecb4a95..373a366 100644
--- a/lib/librte_pmd_i40e/i40e_fdir.c
+++ b/lib/librte_pmd_i40e/i40e_fdir.c
@@ -48,10 +48,23 @@
 #include "i40e/i40e_type.h"
 #include "i40e_ethdev.h"
 #include "i40e_rxtx.h"
+/* Wait count and inteval for fdir filter programming */
+#define I40E_FDIR_WAIT_COUNT       10
+#define I40E_FDIR_WAIT_INTERVAL_US 1000
+/* Wait count and inteval for fdir filter flush */
+#define I40E_FDIR_FLUSH_RETRY       5
+#define I40E_FDIR_FLUSH_INTERVAL_MS 5000
 
 #define I40E_COUNTER_PF           2
 #define I40E_COUNTER_INDEX_FDIR(pf_id)   (0 + (pf_id) * I40E_COUNTER_PF)
 
+#ifndef RTE_MBUF_DATA_DMA_ADDR
+#define RTE_MBUF_DATA_DMA_ADDR(mb) \
+	((uint64_t)((mb)->buf_physaddr + \
+	(uint64_t)((char *)((mb)->pkt.data) - \
+	(char *)(mb)->buf_addr)))
+#endif
+
 /*
  * i40e_fdir_setup - reserve and initialize the Flow Director resources
  * @pf: board private structure
@@ -133,3 +146,210 @@ i40e_fdir_teardown(struct i40e_pf *pf)
 	pf->fdir.fdir_vsi = NULL;
 	return;
 }
+
+/*
+ * i40e_fdir_flush - clear all filters of Flow Director
+ * @pf: board private structure
+ */
+int
+i40e_fdir_flush(struct i40e_pf *pf)
+{
+	struct i40e_hw *hw = I40E_PF_TO_HW(pf);
+	uint32_t reg;
+	uint16_t guarant_cnt, best_cnt;
+	int i;
+
+	I40E_WRITE_REG(hw, I40E_PFQF_CTL_1, I40E_PFQF_CTL_1_CLEARFDTABLE_MASK);
+	I40E_WRITE_FLUSH(hw);
+
+	for (i = 0; i < I40E_FDIR_FLUSH_RETRY; i++) {
+		rte_delay_ms(I40E_FDIR_FLUSH_INTERVAL_MS);
+		reg = I40E_READ_REG(hw, I40E_PFQF_CTL_1);
+		if (!(reg & I40E_PFQF_CTL_1_CLEARFDTABLE_MASK))
+			break;
+	}
+	if (i >= I40E_FDIR_FLUSH_RETRY) {
+		PMD_DRV_LOG(ERR, "FD table did not flush, may need more time\n");
+		return I40E_ERR_TIMEOUT;
+	}
+	guarant_cnt = (uint16_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
+				I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) >>
+				I40E_PFQF_FDSTAT_GUARANT_CNT_SHIFT);
+	best_cnt = (uint16_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
+				I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
+				I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
+	if (guarant_cnt != 0 || best_cnt != 0) {
+		PMD_DRV_LOG(ERR, "Failed to flush FD table\n");
+		return I40E_ERR_CONFIG;
+	} else
+		PMD_DRV_LOG(INFO, "FD table Flush success\n");
+	return I40E_SUCCESS;
+}
+
+/* Construct the tx flags */
+static inline uint64_t
+i40e_build_ctob(uint32_t td_cmd,
+		uint32_t td_offset,
+		unsigned int size,
+		uint32_t td_tag)
+{
+	return rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DATA |
+			((uint64_t)td_cmd  << I40E_TXD_QW1_CMD_SHIFT) |
+			((uint64_t)td_offset << I40E_TXD_QW1_OFFSET_SHIFT) |
+			((uint64_t)size  << I40E_TXD_QW1_TX_BUF_SZ_SHIFT) |
+			((uint64_t)td_tag  << I40E_TXD_QW1_L2TAG1_SHIFT));
+}
+
+/*
+ * Program A flow diretor filter rule.
+ * Is done by Flow Director Programming
+ * Descriptor  followed by packet structure that contains the filter fields
+ * need to match.
+ */
+int
+i40e_fdir_filter_programming(struct i40e_pf *pf,
+			uint16_t soft_id,
+			struct rte_i40e_fdir_input *fdir_input,
+			struct rte_i40e_fdir_action *fdir_action,
+			bool add)
+{
+	struct i40e_tx_queue *txq = pf->fdir.txq;
+	volatile struct i40e_tx_desc *txdp;
+	struct rte_mbuf *mbuf = fdir_input->data;
+	volatile struct i40e_filter_program_desc *fdirdp;
+	uint64_t dma_addr;
+	uint32_t td_cmd;
+	uint16_t i;
+	uint8_t dest;
+
+	PMD_DRV_LOG(INFO, "filling filter prgramming descriptor\n");
+	fdirdp = (volatile struct i40e_filter_program_desc *)
+			(&(txq->tx_ring[txq->tx_tail]));
+
+	fdirdp->qindex_flex_ptype_vsi =
+			rte_cpu_to_le_32((fdir_action->rx_queue <<
+					  I40E_TXD_FLTR_QW0_QINDEX_SHIFT) &
+					  I40E_TXD_FLTR_QW0_QINDEX_MASK);
+
+	fdirdp->qindex_flex_ptype_vsi |=
+			rte_cpu_to_le_32((fdir_input->flex_off <<
+					  I40E_TXD_FLTR_QW0_FLEXOFF_SHIFT) &
+					  I40E_TXD_FLTR_QW0_FLEXOFF_MASK);
+
+	fdirdp->qindex_flex_ptype_vsi |=
+			rte_cpu_to_le_32((fdir_input->pctype <<
+					  I40E_TXD_FLTR_QW0_PCTYPE_SHIFT) &
+					  I40E_TXD_FLTR_QW0_PCTYPE_MASK);
+
+	/* Use LAN VSI Id if not programmed by user */
+	if (fdir_input->dest_vsi == 0)
+		fdirdp->qindex_flex_ptype_vsi |=
+			rte_cpu_to_le_32((pf->main_vsi->vsi_id <<
+					  I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT) &
+					  I40E_TXD_FLTR_QW0_DEST_VSI_MASK);
+	else
+		fdirdp->qindex_flex_ptype_vsi |=
+			rte_cpu_to_le_32((fdir_input->dest_vsi <<
+					  I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT) &
+					  I40E_TXD_FLTR_QW0_DEST_VSI_MASK);
+
+	fdirdp->dtype_cmd_cntindex =
+			rte_cpu_to_le_32(I40E_TX_DESC_DTYPE_FILTER_PROG);
+
+	if (add)
+		fdirdp->dtype_cmd_cntindex |= rte_cpu_to_le_32(
+				I40E_FILTER_PROGRAM_DESC_PCMD_ADD_UPDATE <<
+				I40E_TXD_FLTR_QW1_PCMD_SHIFT);
+	else
+		fdirdp->dtype_cmd_cntindex |= rte_cpu_to_le_32(
+				I40E_FILTER_PROGRAM_DESC_PCMD_REMOVE <<
+				I40E_TXD_FLTR_QW1_PCMD_SHIFT);
+
+	if (fdir_action->drop == RTE_I40E_DEST_DROP_PACKET)
+		dest = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
+	else
+		dest = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
+	fdirdp->dtype_cmd_cntindex |= rte_cpu_to_le_32((dest <<
+				I40E_TXD_FLTR_QW1_DEST_SHIFT) &
+				I40E_TXD_FLTR_QW1_DEST_MASK);
+
+	fdirdp->dtype_cmd_cntindex |=
+		rte_cpu_to_le_32((fdir_action->report_status<<
+				I40E_TXD_FLTR_QW1_FD_STATUS_SHIFT) &
+				I40E_TXD_FLTR_QW1_FD_STATUS_MASK);
+
+	fdirdp->dtype_cmd_cntindex |=
+			rte_cpu_to_le_32(I40E_TXD_FLTR_QW1_CNT_ENA_MASK);
+	if (fdir_action->cnt_index != 0)
+		fdirdp->dtype_cmd_cntindex |=
+				rte_cpu_to_le_32((fdir_action->cnt_index <<
+				I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) &
+				I40E_TXD_FLTR_QW1_CNTINDEX_MASK);
+	else
+		fdirdp->dtype_cmd_cntindex |=
+				rte_cpu_to_le_32((pf->fdir.match_counter_index <<
+				I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) &
+				I40E_TXD_FLTR_QW1_CNTINDEX_MASK);
+
+	fdirdp->fd_id = rte_cpu_to_le_32(soft_id);
+	txq->tx_tail++;
+	if (txq->tx_tail >= txq->nb_tx_desc)
+		txq->tx_tail = 0;
+
+	PMD_DRV_LOG(INFO, "filling transmit descriptor\n");
+	txdp = &(txq->tx_ring[txq->tx_tail]);
+	dma_addr = RTE_MBUF_DATA_DMA_ADDR(mbuf);
+	txdp->buffer_addr = rte_cpu_to_le_64(dma_addr);
+	td_cmd = I40E_TX_DESC_CMD_EOP |
+		 I40E_TX_DESC_CMD_RS  |
+		 I40E_TX_DESC_CMD_DUMMY;
+
+	txdp->cmd_type_offset_bsz =
+		i40e_build_ctob(td_cmd, 0,
+				mbuf->pkt.data_len, 0);
+
+	txq->tx_tail++;
+	if (txq->tx_tail >= txq->nb_tx_desc)
+		txq->tx_tail = 0;
+	/* Update the tx tail register */
+	rte_wmb();
+	I40E_PCI_REG_WRITE(txq->qtx_tail, txq->tx_tail);
+
+	for (i = 0; i < I40E_FDIR_WAIT_COUNT; i++) {
+		rte_delay_us(I40E_FDIR_WAIT_INTERVAL_US);
+		if (txdp->cmd_type_offset_bsz &
+				rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE))
+			break;
+	}
+	if (i >= I40E_FDIR_WAIT_COUNT) {
+		PMD_DRV_LOG(ERR, "Failed to program FDIR filter\n");
+		return I40E_ERR_TIMEOUT;
+	}
+
+	return I40E_SUCCESS;
+}
+
+/*
+ * i40e_fdir_info_get - get information of Flow Director
+ * @dev: ethernet device to add filter to
+ * @fdir: a pointer to a structure of type *rte_eth_dev_fdir* to be filled with
+ *    the flow director information.
+ **/
+void
+i40e_fdir_info_get(struct rte_eth_dev *dev, struct rte_i40e_fdir_info *fdir)
+{
+	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	uint32_t pfqf_ctl;
+
+	pfqf_ctl = I40E_READ_REG(hw, I40E_PFQF_CTL_0);
+	fdir->mode = pfqf_ctl & I40E_PFQF_CTL_0_FD_ENA_MASK ? 1 : 0;
+	fdir->guarant_spc = (uint16_t)hw->func_caps.fd_filters_guaranteed;
+	fdir->guarant_cnt = (uint16_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
+				I40E_PFQF_FDSTAT_GUARANT_CNT_MASK) >>
+				I40E_PFQF_FDSTAT_GUARANT_CNT_SHIFT);
+	fdir->best_spc = (uint16_t)hw->func_caps.fd_filters_best_effort;
+	fdir->best_cnt = (uint16_t)((I40E_READ_REG(hw, I40E_PFQF_FDSTAT) &
+				I40E_PFQF_FDSTAT_BEST_CNT_MASK) >>
+				I40E_PFQF_FDSTAT_BEST_CNT_SHIFT);
+	return;
+}
diff --git a/lib/librte_pmd_i40e/rte_i40e.h b/lib/librte_pmd_i40e/rte_i40e.h
new file mode 100644
index 0000000..699ea53
--- /dev/null
+++ b/lib/librte_pmd_i40e/rte_i40e.h
@@ -0,0 +1,125 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_I40E_H_
+#define _RTE_I40E_H_
+
+/**
+ * @file
+ *
+ * RTE I40E
+ *
+ * The I40E defines the commands and structures specifically for i40e hardware
+ * features. As different types of NIC hardware may have different features,
+ * they might not be common for all types of NIC hardwares. The commands and
+ * structures can be used in applications directly together with generalized
+ * APIs declared in rte_ethdev.h. The commands couldn't be supported by
+ * non-i40e PMD.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define I40E_FDIR_PKT_LEN                   512
+#define I40E_FDIR_IP_DEFAULT_LEN            0x003C
+#define I40E_FDIR_IP_DEFAULT_TTL            0x40
+#define I40E_FDIR_IP_DEFAULT_VERSION_IHL    0x45
+#define I40E_FDIR_TCP_DEFAULT_DATAOFF       0x50
+#define I40E_FDIR_IPv6_DEFAULT_VTC_FLOW     0x60300000
+#define I40E_FDIR_IPv6_DEFAULT_PAYLOAD_LEN  0x0014
+#define I40E_FDIR_IPv6_DEFAULT_HOP_LIMITS   0xFF
+#define I40E_FDIR_UDP_DEFAULT_LEN           0x0028
+
+enum rte_i40e_fdir_status {
+	RTE_I40E_FDIR_NO_REPORT_STATUS = 0, /**< no report FDIR. */
+	RTE_I40E_FDIR_REPORT_FD_ID,         /**< only report FD ID. */
+	RTE_I40E_FDIR_REPORT_FD_ID_FLEX_4,  /**< report FD ID and 4 flex bytes. */
+	RTE_I40E_FDIR_REPORT_FLEX_8,        /**< report 8 flex bytes. */
+};
+
+#define RTE_I40E_DEST_DROP_PACKET          0x01
+#define RTE_I40E_DEST_DIRECT_PACKET_QINDEX 0x02
+
+/**
+ * A structure used to define the input for an flow director filter entry
+ */
+struct rte_i40e_fdir_input {
+	uint8_t  pctype;
+	uint8_t  flex_off;
+	uint16_t dest_vsi; /**< destination VSI*/
+	struct rte_mbuf *data; /**< mbuf store raw packet used to program */
+};
+
+/**
+ * A structure used to define an action when match FDIR packet filter.
+ */
+struct rte_i40e_fdir_action {
+	uint16_t rx_queue;       /**< queue assigned to if fdir match. */
+	uint16_t cnt_index;      /**< statistic count index */
+	uint8_t  drop;            /**< accept or reject */
+	enum rte_i40e_fdir_status report_status;  /**< status report. */
+};
+
+/**
+ * For commands:
+ * 'RTE_CMD_FDIR_RULE_ADD'
+ * 'RTE_CMD_FDIR_RULE_DEL'
+ *
+ * A structure used to define the flow director filter entry
+ */
+struct rte_i40e_fdir_entry {
+	uint16_t soft_id;               /**< id */
+	struct rte_i40e_fdir_input input;   /**< input set */
+	struct rte_i40e_fdir_action action; /**< action taken when match */
+};
+
+/**
+ * For commands:
+ * 'RTE_CMD_FDIR_INFO_GET'
+ *
+ * A structure used for user to get the information of fdir feature.
+ */
+struct rte_i40e_fdir_info {
+	uint8_t  mode;         /**< 0 is disable, 1 is enable. */
+	uint16_t guarant_spc;  /**< guaranteed spaces.*/
+	uint16_t guarant_cnt;  /**< Number of filters in guaranteed spaces. */
+	uint16_t best_spc;     /**< best effort spaces.*/
+	uint16_t best_cnt;     /**< Number of filters in best effort spaces. */
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_I40E_H_ */
-- 
1.8.1.4