Cross Reference: /drivers/scsi/fnic/vnic

Lines Matching defs:wq
27 static int vnic_wq_alloc_bufs(struct vnic_wq *wq)
31 	unsigned int i, j, count = wq->ring.desc_count;
34 	vdev = wq->vdev;
37 		wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ, GFP_ATOMIC);
38 		if (!wq->bufs[i]) {
45 		buf = wq->bufs[i];
48 			buf->desc = (u8 *)wq->ring.descs +
49 				wq->ring.desc_size * buf->index;
51 				buf->next = wq->bufs[0];
54 				buf->next = wq->bufs[i + 1];
62 	wq->to_use = wq->to_clean = wq->bufs[0];
67 void vnic_wq_free(struct vnic_wq *wq)
72 	vdev = wq->vdev;
74 	vnic_dev_free_desc_ring(vdev, &wq->ring);
77 		kfree(wq->bufs[i]);
78 		wq->bufs[i] = NULL;
81 	wq->ctrl = NULL;
85 int vnic_wq_alloc(struct vnic_dev *vdev, struct vnic_wq *wq, unsigned int index,
90 	wq->index = index;
91 	wq->vdev = vdev;
93 	wq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_WQ, index);
94 	if (!wq->ctrl) {
99 	vnic_wq_disable(wq);
101 	err = vnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count, desc_size);
105 	err = vnic_wq_alloc_bufs(wq);
107 		vnic_wq_free(wq);
114 void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index,
120 	paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET;
121 	writeq(paddr, &wq->ctrl->ring_base);
122 	iowrite32(wq->ring.desc_count, &wq->ctrl->ring_size);
123 	iowrite32(0, &wq->ctrl->fetch_index);
124 	iowrite32(0, &wq->ctrl->posted_index);
125 	iowrite32(cq_index, &wq->ctrl->cq_index);
126 	iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable);
127 	iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset);
128 	iowrite32(0, &wq->ctrl->error_status);
131 unsigned int vnic_wq_error_status(struct vnic_wq *wq)
133 	return ioread32(&wq->ctrl->error_status);
136 void vnic_wq_enable(struct vnic_wq *wq)
138 	iowrite32(1, &wq->ctrl->enable);
141 int vnic_wq_disable(struct vnic_wq *wq)
145 	iowrite32(0, &wq->ctrl->enable);
149 		if (!(ioread32(&wq->ctrl->running)))
154 	printk(KERN_ERR "Failed to disable WQ[%d]\n", wq->index);
159 void vnic_wq_clean(struct vnic_wq *wq,
160 	void (*buf_clean)(struct vnic_wq *wq, struct vnic_wq_buf *buf))
164 	BUG_ON(ioread32(&wq->ctrl->enable));
166 	buf = wq->to_clean;
168 	while (vnic_wq_desc_used(wq) > 0) {
170 		(*buf_clean)(wq, buf);
172 		buf = wq->to_clean = buf->next;
173 		wq->ring.desc_avail++;
176 	wq->to_use = wq->to_clean = wq->bufs[0];
178 	iowrite32(0, &wq->ctrl->fetch_index);
179 	iowrite32(0, &wq->ctrl->posted_index);
180 	iowrite32(0, &wq->ctrl->error_status);
182 	vnic_dev_clear_desc_ring(&wq->ring);