scsi/fnic/vnic_wq_copy.c

13 void vnic_wq_copy_enable(struct vnic_wq_copy *wq)
15 	iowrite32(1, &wq->ctrl->enable);
18 int vnic_wq_copy_disable(struct vnic_wq_copy *wq)
22 	iowrite32(0, &wq->ctrl->enable);
26 		if (!(ioread32(&wq->ctrl->running)))
33 	       wq->index, ioread32(&wq->ctrl->fetch_index),
34 	       ioread32(&wq->ctrl->posted_index));
39 void vnic_wq_copy_clean(struct vnic_wq_copy *wq,
40 	void (*q_clean)(struct vnic_wq_copy *wq,
43 	BUG_ON(ioread32(&wq->ctrl->enable));
45 	if (vnic_wq_copy_desc_in_use(wq))
46 		vnic_wq_copy_service(wq, -1, q_clean);
48 	wq->to_use_index = wq->to_clean_index = 0;
50 	iowrite32(0, &wq->ctrl->fetch_index);
51 	iowrite32(0, &wq->ctrl->posted_index);
52 	iowrite32(0, &wq->ctrl->error_status);
54 	vnic_dev_clear_desc_ring(&wq->ring);
57 void vnic_wq_copy_free(struct vnic_wq_copy *wq)
61 	vdev = wq->vdev;
62 	vnic_dev_free_desc_ring(vdev, &wq->ring);
63 	wq->ctrl = NULL;
66 int vnic_wq_copy_alloc(struct vnic_dev *vdev, struct vnic_wq_copy *wq,
70 	wq->index = index;
71 	wq->vdev = vdev;
72 	wq->to_use_index = wq->to_clean_index = 0;
73 	wq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_WQ, index);
74 	if (!wq->ctrl) {
79 	vnic_wq_copy_disable(wq);
81 	return vnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count, desc_size);
84 void vnic_wq_copy_init(struct vnic_wq_copy *wq, unsigned int cq_index,
90 	paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET;
91 	writeq(paddr, &wq->ctrl->ring_base);
92 	iowrite32(wq->ring.desc_count, &wq->ctrl->ring_size);
93 	iowrite32(0, &wq->ctrl->fetch_index);
94 	iowrite32(0, &wq->ctrl->posted_index);
95 	iowrite32(cq_index, &wq->ctrl->cq_index);
96 	iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable);
97 	iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset);