ice_irq.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/* Copyright (C) 2023, Intel Corporation. */
 3
 4#ifndef _ICE_IRQ_H_
 5#define _ICE_IRQ_H_
 6
 7struct ice_irq_entry {
 8	unsigned int index;
 9	bool dynamic;	/* allocation type flag */
10};
11
12struct ice_irq_tracker {
13	struct xarray entries;
14	u16 num_entries;	/* total vectors available */
15	u16 num_static;	/* preallocated entries */
16};
17
18struct ice_virt_irq_tracker {
19	unsigned long *bm;	/* bitmap to track irq usage */
20	u32 num_entries;
21	/* First MSIX vector used by SR-IOV VFs. Calculated by subtracting the
22	 * number of MSIX vectors needed for all SR-IOV VFs from the number of
23	 * MSIX vectors allowed on this PF.
24	 */
25	u32 base;
26};
27
28int ice_init_interrupt_scheme(struct ice_pf *pf);
29void ice_clear_interrupt_scheme(struct ice_pf *pf);
30
31struct msi_map ice_alloc_irq(struct ice_pf *pf, bool dyn_only);
32void ice_free_irq(struct ice_pf *pf, struct msi_map map);
33
34int ice_virt_get_irqs(struct ice_pf *pf, u32 needed);
35void ice_virt_free_irqs(struct ice_pf *pf, u32 index, u32 irqs);
36#endif