brintos

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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Copyright 2008 Cisco Systems, Inc.  All rights reserved.4 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.5 */6 7#include <linux/kernel.h>8#include <linux/errno.h>9#include <linux/types.h>10#include <linux/pci.h>11#include <linux/delay.h>12#include "vnic_dev.h"13#include "vnic_intr.h"14 15void vnic_intr_free(struct vnic_intr *intr)16{17	intr->ctrl = NULL;18}19 20int vnic_intr_alloc(struct vnic_dev *vdev, struct vnic_intr *intr,21	unsigned int index)22{23	intr->index = index;24	intr->vdev = vdev;25 26	intr->ctrl = vnic_dev_get_res(vdev, RES_TYPE_INTR_CTRL, index);27	if (!intr->ctrl) {28		printk(KERN_ERR "Failed to hook INTR[%d].ctrl resource\n",29			index);30		return -EINVAL;31	}32 33	return 0;34}35 36void vnic_intr_init(struct vnic_intr *intr, unsigned int coalescing_timer,37	unsigned int coalescing_type, unsigned int mask_on_assertion)38{39	iowrite32(coalescing_timer, &intr->ctrl->coalescing_timer);40	iowrite32(coalescing_type, &intr->ctrl->coalescing_type);41	iowrite32(mask_on_assertion, &intr->ctrl->mask_on_assertion);42	iowrite32(0, &intr->ctrl->int_credits);43}44 45void vnic_intr_clean(struct vnic_intr *intr)46{47	iowrite32(0, &intr->ctrl->int_credits);48}49