2e99ea80f8
enic is currently using BSD-2-Clause, whereas the DPDK approved license is BSD-3-Clause. So replace license text with BSD-3-Clause. Remove LICENSE as it is redundant. Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com> Reviewed-by: John Daley <johndale@cisco.com>
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright 2008-2017 Cisco Systems, Inc. All rights reserved.
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* Copyright 2007 Nuova Systems, Inc. All rights reserved.
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*/
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#include "vnic_dev.h"
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#include "vnic_cq.h"
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void vnic_cq_free(struct vnic_cq *cq)
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{
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vnic_dev_free_desc_ring(cq->vdev, &cq->ring);
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cq->ctrl = NULL;
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}
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int vnic_cq_alloc(struct vnic_dev *vdev, struct vnic_cq *cq, unsigned int index,
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unsigned int socket_id,
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unsigned int desc_count, unsigned int desc_size)
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{
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int err;
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char res_name[NAME_MAX];
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static int instance;
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cq->index = index;
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cq->vdev = vdev;
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cq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_CQ, index);
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if (!cq->ctrl) {
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pr_err("Failed to hook CQ[%u] resource\n", index);
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return -EINVAL;
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}
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snprintf(res_name, sizeof(res_name), "%d-cq-%u", instance++, index);
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err = vnic_dev_alloc_desc_ring(vdev, &cq->ring, desc_count, desc_size,
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socket_id, res_name);
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if (err)
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return err;
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return 0;
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}
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void vnic_cq_init(struct vnic_cq *cq, unsigned int flow_control_enable,
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unsigned int color_enable, unsigned int cq_head, unsigned int cq_tail,
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unsigned int cq_tail_color, unsigned int interrupt_enable,
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unsigned int cq_entry_enable, unsigned int cq_message_enable,
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unsigned int interrupt_offset, u64 cq_message_addr)
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{
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u64 paddr;
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paddr = (u64)cq->ring.base_addr | VNIC_PADDR_TARGET;
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writeq(paddr, &cq->ctrl->ring_base);
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iowrite32(cq->ring.desc_count, &cq->ctrl->ring_size);
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iowrite32(flow_control_enable, &cq->ctrl->flow_control_enable);
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iowrite32(color_enable, &cq->ctrl->color_enable);
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iowrite32(cq_head, &cq->ctrl->cq_head);
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iowrite32(cq_tail, &cq->ctrl->cq_tail);
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iowrite32(cq_tail_color, &cq->ctrl->cq_tail_color);
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iowrite32(interrupt_enable, &cq->ctrl->interrupt_enable);
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iowrite32(cq_entry_enable, &cq->ctrl->cq_entry_enable);
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iowrite32(cq_message_enable, &cq->ctrl->cq_message_enable);
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iowrite32(interrupt_offset, &cq->ctrl->interrupt_offset);
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writeq(cq_message_addr, &cq->ctrl->cq_message_addr);
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cq->interrupt_offset = interrupt_offset;
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}
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void vnic_cq_clean(struct vnic_cq *cq)
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{
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cq->to_clean = 0;
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cq->last_color = 0;
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iowrite32(0, &cq->ctrl->cq_head);
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iowrite32(0, &cq->ctrl->cq_tail);
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iowrite32(1, &cq->ctrl->cq_tail_color);
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vnic_dev_clear_desc_ring(&cq->ring);
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}
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