16 static int vnic_wq_get_ctrl(struct vnic_dev *vdev, struct vnic_wq *wq,  in vnic_wq_get_ctrl()  argument
19 	wq->ctrl = vnic_dev_get_res(vdev, res_type, index);  in vnic_wq_get_ctrl()
21 	if (!wq->ctrl)  in vnic_wq_get_ctrl()
28 static int vnic_wq_alloc_ring(struct vnic_dev *vdev, struct vnic_wq *wq,  in vnic_wq_alloc_ring()  argument
31 	return vnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count, desc_size);  in vnic_wq_alloc_ring()
35 static int vnic_wq_alloc_bufs(struct vnic_wq *wq)  in vnic_wq_alloc_bufs()  argument
38 	unsigned int i, j, count = wq->ring.desc_count;  in vnic_wq_alloc_bufs()
42 		wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ, GFP_ATOMIC);  in vnic_wq_alloc_bufs()
43 		if (!wq->bufs[i]) {  in vnic_wq_alloc_bufs()
50 		buf = wq->bufs[i];  in vnic_wq_alloc_bufs()
53 			buf->desc = (u8 *)wq->ring.descs +  in vnic_wq_alloc_bufs()
54 				wq->ring.desc_size * buf->index;  in vnic_wq_alloc_bufs()
56 				buf->next = wq->bufs[0];  in vnic_wq_alloc_bufs()
59 				buf->next = wq->bufs[i + 1];  in vnic_wq_alloc_bufs()
67 	wq->to_use = wq->to_clean = wq->bufs[0];  in vnic_wq_alloc_bufs()
72 void vnic_wq_free(struct vnic_wq *wq)  in vnic_wq_free()  argument
77 	vdev = wq->vdev;  in vnic_wq_free()
79 	vnic_dev_free_desc_ring(vdev, &wq->ring);  in vnic_wq_free()
82 		kfree(wq->bufs[i]);  in vnic_wq_free()
83 		wq->bufs[i] = NULL;  in vnic_wq_free()
86 	wq->ctrl = NULL;  in vnic_wq_free()
90 int vnic_wq_alloc(struct vnic_dev *vdev, struct vnic_wq *wq, unsigned int index,  in vnic_wq_alloc()  argument
95 	wq->index = index;  in vnic_wq_alloc()
96 	wq->vdev = vdev;  in vnic_wq_alloc()
98 	wq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_WQ, index);  in vnic_wq_alloc()
99 	if (!wq->ctrl) {  in vnic_wq_alloc()
104 	vnic_wq_disable(wq);  in vnic_wq_alloc()
106 	err = vnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count, desc_size);  in vnic_wq_alloc()
110 	err = vnic_wq_alloc_bufs(wq);  in vnic_wq_alloc()
112 		vnic_wq_free(wq);  in vnic_wq_alloc()
120 int vnic_wq_devcmd2_alloc(struct vnic_dev *vdev, struct vnic_wq *wq,  in vnic_wq_devcmd2_alloc()  argument
125 	wq->index = 0;  in vnic_wq_devcmd2_alloc()
126 	wq->vdev = vdev;  in vnic_wq_devcmd2_alloc()
128 	err = vnic_wq_get_ctrl(vdev, wq, 0, RES_TYPE_DEVCMD2);  in vnic_wq_devcmd2_alloc()
133 	vnic_wq_disable(wq);  in vnic_wq_devcmd2_alloc()
135 	err = vnic_wq_alloc_ring(vdev, wq, desc_count, desc_size);  in vnic_wq_devcmd2_alloc()
141 void vnic_wq_init_start(struct vnic_wq *wq, unsigned int cq_index,  in vnic_wq_init_start()  argument
147 	unsigned int count = wq->ring.desc_count;  in vnic_wq_init_start()
149 	paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET;  in vnic_wq_init_start()
150 	writeq(paddr, &wq->ctrl->ring_base);  in vnic_wq_init_start()
151 	iowrite32(count, &wq->ctrl->ring_size);  in vnic_wq_init_start()
152 	iowrite32(fetch_index, &wq->ctrl->fetch_index);  in vnic_wq_init_start()
153 	iowrite32(posted_index, &wq->ctrl->posted_index);  in vnic_wq_init_start()
154 	iowrite32(cq_index, &wq->ctrl->cq_index);  in vnic_wq_init_start()
155 	iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable);  in vnic_wq_init_start()
156 	iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset);  in vnic_wq_init_start()
157 	iowrite32(0, &wq->ctrl->error_status);  in vnic_wq_init_start()
159 	wq->to_use = wq->to_clean =  in vnic_wq_init_start()
160 		&wq->bufs[fetch_index / VNIC_WQ_BUF_BLK_ENTRIES]  in vnic_wq_init_start()
165 void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index,  in vnic_wq_init()  argument
171 	paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET;  in vnic_wq_init()
172 	writeq(paddr, &wq->ctrl->ring_base);  in vnic_wq_init()
173 	iowrite32(wq->ring.desc_count, &wq->ctrl->ring_size);  in vnic_wq_init()
174 	iowrite32(0, &wq->ctrl->fetch_index);  in vnic_wq_init()
175 	iowrite32(0, &wq->ctrl->posted_index);  in vnic_wq_init()
176 	iowrite32(cq_index, &wq->ctrl->cq_index);  in vnic_wq_init()
177 	iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable);  in vnic_wq_init()
178 	iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset);  in vnic_wq_init()
179 	iowrite32(0, &wq->ctrl->error_status);  in vnic_wq_init()
182 unsigned int vnic_wq_error_status(struct vnic_wq *wq)  in vnic_wq_error_status()  argument
184 	return ioread32(&wq->ctrl->error_status);  in vnic_wq_error_status()
187 void vnic_wq_enable(struct vnic_wq *wq)  in vnic_wq_enable()  argument
189 	iowrite32(1, &wq->ctrl->enable);  in vnic_wq_enable()
192 int vnic_wq_disable(struct vnic_wq *wq)  in vnic_wq_disable()  argument
196 	iowrite32(0, &wq->ctrl->enable);  in vnic_wq_disable()
200 		if (!(ioread32(&wq->ctrl->running)))  in vnic_wq_disable()
205 	printk(KERN_ERR "Failed to disable WQ[%d]\n", wq->index);  in vnic_wq_disable()
210 void vnic_wq_clean(struct vnic_wq *wq,  in vnic_wq_clean()  argument
211 	void (*buf_clean)(struct vnic_wq *wq, struct vnic_wq_buf *buf))  in vnic_wq_clean()  argument
215 	BUG_ON(ioread32(&wq->ctrl->enable));  in vnic_wq_clean()
217 	buf = wq->to_clean;  in vnic_wq_clean()
219 	while (vnic_wq_desc_used(wq) > 0) {  in vnic_wq_clean()
221 		(*buf_clean)(wq, buf);  in vnic_wq_clean()
223 		buf = wq->to_clean = buf->next;  in vnic_wq_clean()
224 		wq->ring.desc_avail++;  in vnic_wq_clean()
227 	wq->to_use = wq->to_clean = wq->bufs[0];  in vnic_wq_clean()
229 	iowrite32(0, &wq->ctrl->fetch_index);  in vnic_wq_clean()
230 	iowrite32(0, &wq->ctrl->posted_index);  in vnic_wq_clean()
231 	iowrite32(0, &wq->ctrl->error_status);  in vnic_wq_clean()
233 	vnic_dev_clear_desc_ring(&wq->ring);  in vnic_wq_clean()