drivers/net/ethernet/intel/ice/ice_irq.h

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2023, Intel Corporation. */

#ifndef _ICE_IRQ_H_
#define _ICE_IRQ_H_

struct ice_irq_entry {
	unsigned int index;
	bool dynamic;	/* allocation type flag */
};

struct ice_irq_tracker {
	struct xarray entries;
	u16 num_entries;	/* total vectors available */
	u16 num_static;	/* preallocated entries */
};

struct ice_virt_irq_tracker {
	unsigned long *bm;	/* bitmap to track irq usage */
	u32 num_entries;
	/* First MSIX vector used by SR-IOV VFs. Calculated by subtracting the
	 * number of MSIX vectors needed for all SR-IOV VFs from the number of
	 * MSIX vectors allowed on this PF.
	 */
	u32 base;
};

int ice_init_interrupt_scheme(struct ice_pf *pf);
void ice_clear_interrupt_scheme(struct ice_pf *pf);

struct msi_map ice_alloc_irq(struct ice_pf *pf, bool dyn_only);
void ice_free_irq(struct ice_pf *pf, struct msi_map map);

int ice_virt_get_irqs(struct ice_pf *pf, u32 needed);
void ice_virt_free_irqs(struct ice_pf *pf, u32 index, u32 irqs);
#endif