1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2008-2017 Cisco Systems, Inc. All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
8 #include <rte_memzone.h>
10 void vnic_cq_free(struct vnic_cq *cq)
12 vnic_dev_free_desc_ring(cq->vdev, &cq->ring);
17 int vnic_cq_alloc(struct vnic_dev *vdev, struct vnic_cq *cq, unsigned int index,
18 unsigned int socket_id,
19 unsigned int desc_count, unsigned int desc_size)
22 char res_name[RTE_MEMZONE_NAMESIZE];
28 cq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_CQ, index);
30 pr_err("Failed to hook CQ[%u] resource\n", index);
34 snprintf(res_name, sizeof(res_name), "%d-cq-%u", instance++, index);
35 err = vnic_dev_alloc_desc_ring(vdev, &cq->ring, desc_count, desc_size,
43 void vnic_cq_init(struct vnic_cq *cq, unsigned int flow_control_enable,
44 unsigned int color_enable, unsigned int cq_head, unsigned int cq_tail,
45 unsigned int cq_tail_color, unsigned int interrupt_enable,
46 unsigned int cq_entry_enable, unsigned int cq_message_enable,
47 unsigned int interrupt_offset, uint64_t cq_message_addr)
51 paddr = (uint64_t)cq->ring.base_addr | VNIC_PADDR_TARGET;
52 writeq(paddr, &cq->ctrl->ring_base);
53 iowrite32(cq->ring.desc_count, &cq->ctrl->ring_size);
54 iowrite32(flow_control_enable, &cq->ctrl->flow_control_enable);
55 iowrite32(color_enable, &cq->ctrl->color_enable);
56 iowrite32(cq_head, &cq->ctrl->cq_head);
57 iowrite32(cq_tail, &cq->ctrl->cq_tail);
58 iowrite32(cq_tail_color, &cq->ctrl->cq_tail_color);
59 iowrite32(interrupt_enable, &cq->ctrl->interrupt_enable);
60 iowrite32(cq_entry_enable, &cq->ctrl->cq_entry_enable);
61 iowrite32(cq_message_enable, &cq->ctrl->cq_message_enable);
62 iowrite32(interrupt_offset, &cq->ctrl->interrupt_offset);
63 writeq(cq_message_addr, &cq->ctrl->cq_message_addr);
65 cq->interrupt_offset = interrupt_offset;
68 void vnic_cq_clean(struct vnic_cq *cq)
73 iowrite32(0, &cq->ctrl->cq_head);
74 iowrite32(0, &cq->ctrl->cq_tail);
75 iowrite32(1, &cq->ctrl->cq_tail_color);
77 vnic_dev_clear_desc_ring(&cq->ring);