162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright 2008 Cisco Systems, Inc. All rights reserved. 462306a36Sopenharmony_ci * Copyright 2007 Nuova Systems, Inc. All rights reserved. 562306a36Sopenharmony_ci */ 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci#include <linux/kernel.h> 862306a36Sopenharmony_ci#include <linux/errno.h> 962306a36Sopenharmony_ci#include <linux/types.h> 1062306a36Sopenharmony_ci#include <linux/pci.h> 1162306a36Sopenharmony_ci#include <linux/delay.h> 1262306a36Sopenharmony_ci#include "vnic_dev.h" 1362306a36Sopenharmony_ci#include "vnic_intr.h" 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_civoid vnic_intr_free(struct vnic_intr *intr) 1662306a36Sopenharmony_ci{ 1762306a36Sopenharmony_ci intr->ctrl = NULL; 1862306a36Sopenharmony_ci} 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ciint vnic_intr_alloc(struct vnic_dev *vdev, struct vnic_intr *intr, 2162306a36Sopenharmony_ci unsigned int index) 2262306a36Sopenharmony_ci{ 2362306a36Sopenharmony_ci intr->index = index; 2462306a36Sopenharmony_ci intr->vdev = vdev; 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ci intr->ctrl = vnic_dev_get_res(vdev, RES_TYPE_INTR_CTRL, index); 2762306a36Sopenharmony_ci if (!intr->ctrl) { 2862306a36Sopenharmony_ci printk(KERN_ERR "Failed to hook INTR[%d].ctrl resource\n", 2962306a36Sopenharmony_ci index); 3062306a36Sopenharmony_ci return -EINVAL; 3162306a36Sopenharmony_ci } 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ci return 0; 3462306a36Sopenharmony_ci} 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_civoid vnic_intr_init(struct vnic_intr *intr, unsigned int coalescing_timer, 3762306a36Sopenharmony_ci unsigned int coalescing_type, unsigned int mask_on_assertion) 3862306a36Sopenharmony_ci{ 3962306a36Sopenharmony_ci iowrite32(coalescing_timer, &intr->ctrl->coalescing_timer); 4062306a36Sopenharmony_ci iowrite32(coalescing_type, &intr->ctrl->coalescing_type); 4162306a36Sopenharmony_ci iowrite32(mask_on_assertion, &intr->ctrl->mask_on_assertion); 4262306a36Sopenharmony_ci iowrite32(0, &intr->ctrl->int_credits); 4362306a36Sopenharmony_ci} 4462306a36Sopenharmony_ci 4562306a36Sopenharmony_civoid vnic_intr_clean(struct vnic_intr *intr) 4662306a36Sopenharmony_ci{ 4762306a36Sopenharmony_ci iowrite32(0, &intr->ctrl->int_credits); 4862306a36Sopenharmony_ci} 49