#include <rte_log.h>
#include <rte_memzone.h>
#include <rte_malloc.h>
+#include <rte_ip.h>
+#include <rte_udp.h>
+#include <rte_tcp.h>
+#include <rte_sctp.h>
#include "i40e_logs.h"
#include "i40e/i40e_type.h"
#include "i40e_rxtx.h"
#define I40E_FDIR_MZ_NAME "FDIR_MEMZONE"
-#define I40E_FDIR_PKT_LEN 512
+#ifndef IPV6_ADDR_LEN
+#define IPV6_ADDR_LEN 16
+#endif
+#define I40E_FDIR_PKT_LEN 512
+#define I40E_FDIR_IP_DEFAULT_LEN 420
+#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_HOP_LIMITS 0xFF
+#define I40E_FDIR_IPv6_PAYLOAD_LEN 380
+#define I40E_FDIR_UDP_DEFAULT_LEN 400
+
+/* Wait count and interval for fdir filter programming */
+#define I40E_FDIR_WAIT_COUNT 10
+#define I40E_FDIR_WAIT_INTERVAL_US 1000
/* Wait count and interval for fdir filter flush */
#define I40E_FDIR_FLUSH_RETRY 50
#define I40E_FLX_OFFSET_IN_FIELD_VECTOR 50
static int i40e_fdir_rx_queue_init(struct i40e_rx_queue *rxq);
+static int i40e_fdir_construct_pkt(struct i40e_pf *pf,
+ const struct rte_eth_fdir_input *fdir_input,
+ unsigned char *raw_pkt);
+static int i40e_add_del_fdir_filter(struct rte_eth_dev *dev,
+ const struct rte_eth_fdir_filter *filter,
+ bool add);
+static int i40e_fdir_filter_programming(struct i40e_pf *pf,
+ enum i40e_filter_pctype pctype,
+ const struct rte_eth_fdir_filter *filter,
+ bool add);
static int i40e_fdir_flush(struct rte_eth_dev *dev);
static int
return ret;
}
+static inline void
+i40e_fdir_fill_eth_ip_head(const struct rte_eth_fdir_input *fdir_input,
+ unsigned char *raw_pkt)
+{
+ struct ether_hdr *ether = (struct ether_hdr *)raw_pkt;
+ struct ipv4_hdr *ip;
+ struct ipv6_hdr *ip6;
+ static const uint8_t next_proto[] = {
+ [RTE_ETH_FLOW_TYPE_UDPV4] = IPPROTO_UDP,
+ [RTE_ETH_FLOW_TYPE_TCPV4] = IPPROTO_TCP,
+ [RTE_ETH_FLOW_TYPE_SCTPV4] = IPPROTO_SCTP,
+ [RTE_ETH_FLOW_TYPE_IPV4_OTHER] = IPPROTO_IP,
+ [RTE_ETH_FLOW_TYPE_FRAG_IPV4] = IPPROTO_IP,
+ [RTE_ETH_FLOW_TYPE_UDPV6] = IPPROTO_UDP,
+ [RTE_ETH_FLOW_TYPE_TCPV6] = IPPROTO_TCP,
+ [RTE_ETH_FLOW_TYPE_SCTPV6] = IPPROTO_SCTP,
+ [RTE_ETH_FLOW_TYPE_IPV6_OTHER] = IPPROTO_NONE,
+ [RTE_ETH_FLOW_TYPE_FRAG_IPV6] = IPPROTO_NONE,
+ };
+
+ switch (fdir_input->flow_type) {
+ case RTE_ETH_FLOW_TYPE_UDPV4:
+ case RTE_ETH_FLOW_TYPE_TCPV4:
+ case RTE_ETH_FLOW_TYPE_SCTPV4:
+ case RTE_ETH_FLOW_TYPE_IPV4_OTHER:
+ case RTE_ETH_FLOW_TYPE_FRAG_IPV4:
+ ip = (struct ipv4_hdr *)(raw_pkt + sizeof(struct ether_hdr));
+
+ ether->ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv4);
+ ip->version_ihl = I40E_FDIR_IP_DEFAULT_VERSION_IHL;
+ /* set len to by default */
+ ip->total_length = rte_cpu_to_be_16(I40E_FDIR_IP_DEFAULT_LEN);
+ ip->time_to_live = I40E_FDIR_IP_DEFAULT_TTL;
+ /*
+ * The source and destination fields in the transmitted packet
+ * need to be presented in a reversed order with respect
+ * to the expected received packets.
+ */
+ ip->src_addr = fdir_input->flow.ip4_flow.dst_ip;
+ ip->dst_addr = fdir_input->flow.ip4_flow.src_ip;
+ ip->next_proto_id = next_proto[fdir_input->flow_type];
+ break;
+ case RTE_ETH_FLOW_TYPE_UDPV6:
+ case RTE_ETH_FLOW_TYPE_TCPV6:
+ case RTE_ETH_FLOW_TYPE_SCTPV6:
+ case RTE_ETH_FLOW_TYPE_IPV6_OTHER:
+ case RTE_ETH_FLOW_TYPE_FRAG_IPV6:
+ ip6 = (struct ipv6_hdr *)(raw_pkt + sizeof(struct ether_hdr));
+
+ ether->ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv6);
+ ip6->vtc_flow =
+ rte_cpu_to_be_32(I40E_FDIR_IPv6_DEFAULT_VTC_FLOW);
+ ip6->payload_len =
+ rte_cpu_to_be_16(I40E_FDIR_IPv6_PAYLOAD_LEN);
+ ip6->hop_limits = I40E_FDIR_IPv6_DEFAULT_HOP_LIMITS;
+
+ /*
+ * The source and destination fields in the transmitted packet
+ * need to be presented in a reversed order with respect
+ * to the expected received packets.
+ */
+ rte_memcpy(&(ip6->src_addr),
+ &(fdir_input->flow.ip6_flow.dst_ip),
+ IPV6_ADDR_LEN);
+ rte_memcpy(&(ip6->dst_addr),
+ &(fdir_input->flow.ip6_flow.src_ip),
+ IPV6_ADDR_LEN);
+ ip6->proto = next_proto[fdir_input->flow_type];
+ break;
+ default:
+ PMD_DRV_LOG(ERR, "unknown flow type %u.",
+ fdir_input->flow_type);
+ break;
+ }
+}
+
+
+/*
+ * i40e_fdir_construct_pkt - construct packet based on fields in input
+ * @pf: board private structure
+ * @fdir_input: input set of the flow director entry
+ * @raw_pkt: a packet to be constructed
+ */
+static int
+i40e_fdir_construct_pkt(struct i40e_pf *pf,
+ const struct rte_eth_fdir_input *fdir_input,
+ unsigned char *raw_pkt)
+{
+ unsigned char *payload, *ptr;
+ struct udp_hdr *udp;
+ struct tcp_hdr *tcp;
+ struct sctp_hdr *sctp;
+ uint8_t size, dst = 0;
+ uint8_t i, pit_idx, set_idx = I40E_FLXPLD_L4_IDX; /* use l4 by default*/
+
+ /* fill the ethernet and IP head */
+ i40e_fdir_fill_eth_ip_head(fdir_input, raw_pkt);
+
+ /* fill the L4 head */
+ switch (fdir_input->flow_type) {
+ case RTE_ETH_FLOW_TYPE_UDPV4:
+ udp = (struct udp_hdr *)(raw_pkt + sizeof(struct ether_hdr) +
+ sizeof(struct ipv4_hdr));
+ payload = (unsigned char *)udp + sizeof(struct udp_hdr);
+ /*
+ * The source and destination fields in the transmitted packet
+ * need to be presented in a reversed order with respect
+ * to the expected received packets.
+ */
+ udp->src_port = fdir_input->flow.udp4_flow.dst_port;
+ udp->dst_port = fdir_input->flow.udp4_flow.src_port;
+ udp->dgram_len = rte_cpu_to_be_16(I40E_FDIR_UDP_DEFAULT_LEN);
+ break;
+
+ case RTE_ETH_FLOW_TYPE_TCPV4:
+ tcp = (struct tcp_hdr *)(raw_pkt + sizeof(struct ether_hdr) +
+ sizeof(struct ipv4_hdr));
+ payload = (unsigned char *)tcp + sizeof(struct tcp_hdr);
+ /*
+ * The source and destination fields in the transmitted packet
+ * need to be presented in a reversed order with respect
+ * to the expected received packets.
+ */
+ tcp->src_port = fdir_input->flow.tcp4_flow.dst_port;
+ tcp->dst_port = fdir_input->flow.tcp4_flow.src_port;
+ tcp->data_off = I40E_FDIR_TCP_DEFAULT_DATAOFF;
+ break;
+
+ case RTE_ETH_FLOW_TYPE_SCTPV4:
+ sctp = (struct sctp_hdr *)(raw_pkt + sizeof(struct ether_hdr) +
+ sizeof(struct ipv4_hdr));
+ payload = (unsigned char *)sctp + sizeof(struct sctp_hdr);
+ sctp->tag = fdir_input->flow.sctp4_flow.verify_tag;
+ break;
+
+ case RTE_ETH_FLOW_TYPE_IPV4_OTHER:
+ case RTE_ETH_FLOW_TYPE_FRAG_IPV4:
+ payload = raw_pkt + sizeof(struct ether_hdr) +
+ sizeof(struct ipv4_hdr);
+ set_idx = I40E_FLXPLD_L3_IDX;
+ break;
+
+ case RTE_ETH_FLOW_TYPE_UDPV6:
+ udp = (struct udp_hdr *)(raw_pkt + sizeof(struct ether_hdr) +
+ sizeof(struct ipv6_hdr));
+ payload = (unsigned char *)udp + sizeof(struct udp_hdr);
+ /*
+ * The source and destination fields in the transmitted packet
+ * need to be presented in a reversed order with respect
+ * to the expected received packets.
+ */
+ udp->src_port = fdir_input->flow.udp6_flow.dst_port;
+ udp->dst_port = fdir_input->flow.udp6_flow.src_port;
+ udp->dgram_len = rte_cpu_to_be_16(I40E_FDIR_IPv6_PAYLOAD_LEN);
+ break;
+
+ case RTE_ETH_FLOW_TYPE_TCPV6:
+ tcp = (struct tcp_hdr *)(raw_pkt + sizeof(struct ether_hdr) +
+ sizeof(struct ipv6_hdr));
+ payload = (unsigned char *)tcp + sizeof(struct tcp_hdr);
+ /*
+ * The source and destination fields in the transmitted packet
+ * need to be presented in a reversed order with respect
+ * to the expected received packets.
+ */
+ tcp->data_off = I40E_FDIR_TCP_DEFAULT_DATAOFF;
+ tcp->src_port = fdir_input->flow.udp6_flow.dst_port;
+ tcp->dst_port = fdir_input->flow.udp6_flow.src_port;
+ break;
+
+ case RTE_ETH_FLOW_TYPE_SCTPV6:
+ sctp = (struct sctp_hdr *)(raw_pkt + sizeof(struct ether_hdr) +
+ sizeof(struct ipv6_hdr));
+ payload = (unsigned char *)sctp + sizeof(struct sctp_hdr);
+ sctp->tag = fdir_input->flow.sctp6_flow.verify_tag;
+ break;
+
+ case RTE_ETH_FLOW_TYPE_IPV6_OTHER:
+ case RTE_ETH_FLOW_TYPE_FRAG_IPV6:
+ payload = raw_pkt + sizeof(struct ether_hdr) +
+ sizeof(struct ipv6_hdr);
+ set_idx = I40E_FLXPLD_L3_IDX;
+ break;
+ default:
+ PMD_DRV_LOG(ERR, "unknown flow type %u.", fdir_input->flow_type);
+ return -EINVAL;
+ }
+
+ /* fill the flexbytes to payload */
+ for (i = 0; i < I40E_MAX_FLXPLD_FIED; i++) {
+ pit_idx = set_idx * I40E_MAX_FLXPLD_FIED + i;
+ size = pf->fdir.flex_set[pit_idx].size;
+ if (size == 0)
+ continue;
+ dst = pf->fdir.flex_set[pit_idx].dst_offset * sizeof(uint16_t);
+ ptr = payload +
+ pf->fdir.flex_set[pit_idx].src_offset * sizeof(uint16_t);
+ (void)rte_memcpy(ptr,
+ &fdir_input->flow_ext.flexbytes[dst],
+ size * sizeof(uint16_t));
+ }
+
+ return 0;
+}
+
+/* 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));
+}
+
+/*
+ * check the programming status descriptor in rx queue.
+ * done after Programming Flow Director is programmed on
+ * tx queue
+ */
+static inline int
+i40e_check_fdir_programming_status(struct i40e_rx_queue *rxq)
+{
+ volatile union i40e_rx_desc *rxdp;
+ uint64_t qword1;
+ uint32_t rx_status;
+ uint32_t len, id;
+ uint32_t error;
+ int ret = 0;
+
+ rxdp = &rxq->rx_ring[rxq->rx_tail];
+ qword1 = rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len);
+ rx_status = (qword1 & I40E_RXD_QW1_STATUS_MASK)
+ >> I40E_RXD_QW1_STATUS_SHIFT;
+
+ if (rx_status & (1 << I40E_RX_DESC_STATUS_DD_SHIFT)) {
+ len = qword1 >> I40E_RX_PROG_STATUS_DESC_LENGTH_SHIFT;
+ id = (qword1 & I40E_RX_PROG_STATUS_DESC_QW1_PROGID_MASK) >>
+ I40E_RX_PROG_STATUS_DESC_QW1_PROGID_SHIFT;
+
+ if (len == I40E_RX_PROG_STATUS_DESC_LENGTH &&
+ id == I40E_RX_PROG_STATUS_DESC_FD_FILTER_STATUS) {
+ error = (qword1 &
+ I40E_RX_PROG_STATUS_DESC_QW1_ERROR_MASK) >>
+ I40E_RX_PROG_STATUS_DESC_QW1_ERROR_SHIFT;
+ if (error == (0x1 <<
+ I40E_RX_PROG_STATUS_DESC_FD_TBL_FULL_SHIFT)) {
+ PMD_DRV_LOG(ERR, "Failed to add FDIR filter"
+ " (FD_ID %u): programming status"
+ " reported.",
+ rxdp->wb.qword0.hi_dword.fd_id);
+ ret = -1;
+ } else if (error == (0x1 <<
+ I40E_RX_PROG_STATUS_DESC_NO_FD_ENTRY_SHIFT)) {
+ PMD_DRV_LOG(ERR, "Failed to delete FDIR filter"
+ " (FD_ID %u): programming status"
+ " reported.",
+ rxdp->wb.qword0.hi_dword.fd_id);
+ ret = -1;
+ } else
+ PMD_DRV_LOG(ERR, "invalid programming status"
+ " reported, error = %u.", error);
+ } else
+ PMD_DRV_LOG(ERR, "unknown programming status"
+ " reported, len = %d, id = %u.", len, id);
+ rxdp->wb.qword1.status_error_len = 0;
+ rxq->rx_tail++;
+ if (unlikely(rxq->rx_tail == rxq->nb_rx_desc))
+ rxq->rx_tail = 0;
+ }
+ return ret;
+}
+
+/*
+ * i40e_add_del_fdir_filter - add or remove a flow director filter.
+ * @pf: board private structure
+ * @filter: fdir filter entry
+ * @add: 0 - delete, 1 - add
+ */
+static int
+i40e_add_del_fdir_filter(struct rte_eth_dev *dev,
+ const struct rte_eth_fdir_filter *filter,
+ bool add)
+{
+ struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+ unsigned char *pkt = (unsigned char *)pf->fdir.prg_pkt;
+ enum i40e_filter_pctype pctype;
+ int ret = 0;
+
+ if (!(pf->flags & I40E_FLAG_FDIR)) {
+ PMD_DRV_LOG(ERR, "FDIR is not enabled.");
+ return -ENOTSUP;
+ }
+ if (!I40E_VALID_FLOW_TYPE(filter->input.flow_type)) {
+ PMD_DRV_LOG(ERR, "invalid flow_type input.");
+ return -EINVAL;
+ }
+ if (filter->action.rx_queue >= pf->dev_data->nb_rx_queues) {
+ PMD_DRV_LOG(ERR, "Invalid queue ID");
+ return -EINVAL;
+ }
+
+ memset(pkt, 0, I40E_FDIR_PKT_LEN);
+
+ ret = i40e_fdir_construct_pkt(pf, &filter->input, pkt);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "construct packet for fdir fails.");
+ return ret;
+ }
+ pctype = i40e_flowtype_to_pctype(filter->input.flow_type);
+ ret = i40e_fdir_filter_programming(pf, pctype, filter, add);
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "fdir programming fails for PCTYPE(%u).",
+ pctype);
+ return ret;
+ }
+ return ret;
+}
+
+/*
+ * i40e_fdir_filter_programming - Program a flow director filter rule.
+ * Is done by Flow Director Programming Descriptor followed by packet
+ * structure that contains the filter fields need to match.
+ * @pf: board private structure
+ * @pctype: pctype
+ * @filter: fdir filter entry
+ * @add: 0 - delelet, 1 - add
+ */
+static int
+i40e_fdir_filter_programming(struct i40e_pf *pf,
+ enum i40e_filter_pctype pctype,
+ const struct rte_eth_fdir_filter *filter,
+ bool add)
+{
+ struct i40e_tx_queue *txq = pf->fdir.txq;
+ struct i40e_rx_queue *rxq = pf->fdir.rxq;
+ const struct rte_eth_fdir_action *fdir_action = &filter->action;
+ volatile struct i40e_tx_desc *txdp;
+ volatile struct i40e_filter_program_desc *fdirdp;
+ uint32_t td_cmd;
+ uint16_t i;
+ uint8_t dest;
+
+ PMD_DRV_LOG(INFO, "filling filter programming descriptor.");
+ 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_action->flex_off <<
+ I40E_TXD_FLTR_QW0_FLEXOFF_SHIFT) &
+ I40E_TXD_FLTR_QW0_FLEXOFF_MASK);
+
+ fdirdp->qindex_flex_ptype_vsi |=
+ rte_cpu_to_le_32((pctype <<
+ I40E_TXD_FLTR_QW0_PCTYPE_SHIFT) &
+ I40E_TXD_FLTR_QW0_PCTYPE_MASK);
+
+ /* Use LAN VSI Id by default */
+ 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);
+
+ 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->behavior == RTE_ETH_FDIR_REJECT)
+ 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);
+ 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(filter->soft_id);
+
+ PMD_DRV_LOG(INFO, "filling transmit descriptor.");
+ txdp = &(txq->tx_ring[txq->tx_tail + 1]);
+ txdp->buffer_addr = rte_cpu_to_le_64(pf->fdir.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, I40E_FDIR_PKT_LEN, 0);
+
+ txq->tx_tail += 2; /* set 2 descriptors above, fdirdp and txdp */
+ 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:"
+ " time out to get DD on tx queue.");
+ return -ETIMEDOUT;
+ }
+ /* totally delay 10 ms to check programming status*/
+ rte_delay_us((I40E_FDIR_WAIT_COUNT - i) * I40E_FDIR_WAIT_INTERVAL_US);
+ if (i40e_check_fdir_programming_status(rxq) < 0) {
+ PMD_DRV_LOG(ERR, "Failed to program FDIR filter:"
+ " programming status reported.");
+ return -ENOSYS;
+ }
+
+ return 0;
+}
+
/*
* i40e_fdir_flush - clear all filters of Flow Director table
* @pf: board private structure
PMD_DRV_LOG(INFO, "FD table Flush success.");
return 0;
}
+
+/*
+ * i40e_fdir_ctrl_func - deal with all operations on flow director.
+ * @pf: board private structure
+ * @filter_op:operation will be taken.
+ * @arg: a pointer to specific structure corresponding to the filter_op
+ */
+int
+i40e_fdir_ctrl_func(struct rte_eth_dev *dev,
+ enum rte_filter_op filter_op,
+ void *arg)
+{
+ struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+ int ret = 0;
+
+ if (filter_op == RTE_ETH_FILTER_NOP) {
+ if (!(pf->flags & I40E_FLAG_FDIR))
+ ret = -ENOTSUP;
+ return ret;
+ }
+
+ if (arg == NULL)
+ return -EINVAL;
+
+ switch (filter_op) {
+ case RTE_ETH_FILTER_ADD:
+ ret = i40e_add_del_fdir_filter(dev,
+ (struct rte_eth_fdir_filter *)arg,
+ TRUE);
+ break;
+ case RTE_ETH_FILTER_DELETE:
+ ret = i40e_add_del_fdir_filter(dev,
+ (struct rte_eth_fdir_filter *)arg,
+ FALSE);
+ break;
+ default:
+ PMD_DRV_LOG(ERR, "unknown operation %u.", filter_op);
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}