dpdk +vfio 关闭和开启中断 dpdk +vfio 关闭和开启中断

    **request_irq会去写mxi msg**

>       1. 普通网卡驱动申请中断

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>       3. int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter)
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>       4. {
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>       5.  
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>       6.     err = ixgbe_alloc_q_vectors(adapter);
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>       7.  
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>       8. }
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>       9. static int ixgbe_alloc_q_vectors(struct ixgbe_adapter *adapter)
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>       10. {
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>       11.  
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>       12.     if (q_vectors >= (rxr_remaining + txr_remaining)) {
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>       13.         for (; rxr_remaining; v_idx++) {
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>       14.             err = ixgbe_alloc_q_vector(adapter, q_