+ /*
+ * Continue setup of fdirctrl register bits:
+ * Set the maximum length per hash bucket to 0xA filters
+ * Send interrupt when 64 filters are left
+ */
+ *fdirctrl |= (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
+ (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);
+
+ return 0;
+}
+
+/*
+ * ixgbe_check_fdir_flex_conf -check if the flex payload and mask configuration
+ * arguments are valid
+ */
+static int
+ixgbe_set_fdir_flex_conf(struct rte_eth_dev *dev,
+ const struct rte_eth_fdir_flex_conf *conf)
+{
+ struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ struct ixgbe_hw_fdir_info *info =
+ IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
+ const struct rte_eth_flex_payload_cfg *flex_cfg;
+ const struct rte_eth_fdir_flex_mask *flex_mask;
+ uint32_t fdirctrl, fdirm;
+ uint16_t flexbytes = 0;
+ uint16_t i;
+
+ fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
+ fdirm = IXGBE_READ_REG(hw, IXGBE_FDIRM);
+
+ if (conf == NULL) {
+ PMD_DRV_LOG(INFO, "NULL pointer.");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < conf->nb_payloads; i++) {
+ flex_cfg = &conf->flex_set[i];
+ if (flex_cfg->type != RTE_ETH_RAW_PAYLOAD) {
+ PMD_DRV_LOG(ERR, "unsupported payload type.");
+ return -EINVAL;
+ }
+ if (((flex_cfg->src_offset[0] & 0x1) == 0) &&
+ (flex_cfg->src_offset[1] == flex_cfg->src_offset[0] + 1) &&
+ (flex_cfg->src_offset[0] <= IXGBE_MAX_FLX_SOURCE_OFF)) {
+ fdirctrl &= ~IXGBE_FDIRCTRL_FLEX_MASK;
+ fdirctrl |= (flex_cfg->src_offset[0] / sizeof(uint16_t)) <<
+ IXGBE_FDIRCTRL_FLEX_SHIFT;
+ } else {
+ PMD_DRV_LOG(ERR, "invalid flexbytes arguments.");
+ return -EINVAL;
+ }
+ }