729  * ixgbe_acquire_msix_vectors - acquire MSI-X vectors
733  * return a negative error code if unable to acquire MSI-X vectors for any
739 	int i, vectors, vector_threshold;  in ixgbe_acquire_msix_vectors()  local
744 	vectors = max(adapter->num_rx_queues, adapter->num_tx_queues);  in ixgbe_acquire_msix_vectors()
745 	vectors = max(vectors, adapter->num_xdp_queues);  in ixgbe_acquire_msix_vectors()
747 	/* It is easy to be greedy for MSI-X vectors. However, it really  in ixgbe_acquire_msix_vectors()
748 	 * doesn't do much good if we have a lot more vectors than CPUs. We'll  in ixgbe_acquire_msix_vectors()
750 	 * of vectors as there are CPUs.  in ixgbe_acquire_msix_vectors()
752 	vectors = min_t(int, vectors, num_online_cpus());  in ixgbe_acquire_msix_vectors()
754 	/* Some vectors are necessary for non-queue interrupts */  in ixgbe_acquire_msix_vectors()
755 	vectors += NON_Q_VECTORS;  in ixgbe_acquire_msix_vectors()
763 	vectors = min_t(int, vectors, hw->mac.max_msix_vectors);  in ixgbe_acquire_msix_vectors()
765 	/* We want a minimum of two MSI-X vectors for (1) a TxQ[0] + RxQ[0]  in ixgbe_acquire_msix_vectors()
770 	adapter->msix_entries = kcalloc(vectors,  in ixgbe_acquire_msix_vectors()
776 	for (i = 0; i < vectors; i++)  in ixgbe_acquire_msix_vectors()
779 	vectors = pci_enable_msix_range(adapter->pdev, adapter->msix_entries,  in ixgbe_acquire_msix_vectors()
780 					vector_threshold, vectors);  in ixgbe_acquire_msix_vectors()
782 	if (vectors < 0) {  in ixgbe_acquire_msix_vectors()
783 		/* A negative count of allocated vectors indicates an error in  in ixgbe_acquire_msix_vectors()
784 		 * acquiring within the specified range of MSI-X vectors  in ixgbe_acquire_msix_vectors()
787 			   vectors);  in ixgbe_acquire_msix_vectors()
793 		return vectors;  in ixgbe_acquire_msix_vectors()
796 	/* we successfully allocated some number of vectors within our  in ixgbe_acquire_msix_vectors()
801 	/* Adjust for only the vectors we'll use, which is minimum  in ixgbe_acquire_msix_vectors()
802 	 * of max_q_vectors, or the number of vectors we were allocated.  in ixgbe_acquire_msix_vectors()
804 	vectors -= NON_Q_VECTORS;  in ixgbe_acquire_msix_vectors()
805 	adapter->num_q_vectors = min_t(int, vectors, adapter->max_q_vectors);  in ixgbe_acquire_msix_vectors()
1050  * ixgbe_alloc_q_vectors - Allocate memory for interrupt vectors
1135  * ixgbe_free_q_vectors - Free memory allocated for interrupt vectors
1249 		e_dev_err("Unable to allocate memory for queue vectors\n");  in ixgbe_init_interrupt_scheme()