04e8ec7419
There were defines which originally allowed sharing of some code with the enic kernel driver. The code has long since diverged and now the abstraction just makes the code harder to read. Mostly mechanical replacement of defines and reformatting. Signed-off-by: John Daley <johndale@cisco.com> Reviewed-by: Hyong Youb Kim <hyonkim@cisco.com>
79 lines
2.2 KiB
C
79 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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#include <rte_memzone.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[RTE_MEMZONE_NAMESIZE];
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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, uint64_t cq_message_addr)
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{
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uint64_t paddr;
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paddr = (uint64_t)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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