net/i40e: fix check of flow director programming status
In i40e FDIR PMD code for checking programming status function i40e_check_fdir_programming_status(), the initial value of return value ret should be set to -1 not 0, because if DD bit of I40E_RX_DESC_STATUS_DD is not write back, this function will return 0 to upper function, this give an error info to upper function, the fact for this is it is time out for DD write back and it should return -1. Fixes: 05999aab4ca6 ("i40e: add or delete flow director") Cc: stable@dpdk.org Signed-off-by: Wei Zhao <wei.zhao1@intel.com> Acked-by: Qi Zhang <qi.z.zhang@intel.com>
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@ -1360,6 +1360,8 @@ i40e_check_fdir_programming_status(struct i40e_rx_queue *rxq)
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I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
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else
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I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->rx_tail - 1);
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} else {
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ret = -1;
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}
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return ret;
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