12 static inline int vnic_wq_get_ctrl(struct vnic_dev *vdev, struct vnic_wq *wq,  in vnic_wq_get_ctrl()  argument
15 	wq->ctrl = svnic_dev_get_res(vdev, res_type, index);  in vnic_wq_get_ctrl()
16 	if (!wq->ctrl)  in vnic_wq_get_ctrl()
22 static inline int vnic_wq_alloc_ring(struct vnic_dev *vdev, struct vnic_wq *wq,  in vnic_wq_alloc_ring()  argument
25 	return svnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count,  in vnic_wq_alloc_ring()
29 static int vnic_wq_alloc_bufs(struct vnic_wq *wq)  in vnic_wq_alloc_bufs()  argument
32 	unsigned int i, j, count = wq->ring.desc_count;  in vnic_wq_alloc_bufs()
36 		wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ, GFP_ATOMIC);  in vnic_wq_alloc_bufs()
37 		if (!wq->bufs[i]) {  in vnic_wq_alloc_bufs()
45 		buf = wq->bufs[i];  in vnic_wq_alloc_bufs()
48 			buf->desc = (u8 *)wq->ring.descs +  in vnic_wq_alloc_bufs()
49 				wq->ring.desc_size * buf->index;  in vnic_wq_alloc_bufs()
51 				buf->next = wq->bufs[0];  in vnic_wq_alloc_bufs()
54 				buf->next = wq->bufs[i + 1];  in vnic_wq_alloc_bufs()
62 	wq->to_use = wq->to_clean = wq->bufs[0];  in vnic_wq_alloc_bufs()
67 void svnic_wq_free(struct vnic_wq *wq)  in svnic_wq_free()  argument
72 	vdev = wq->vdev;  in svnic_wq_free()
74 	svnic_dev_free_desc_ring(vdev, &wq->ring);  in svnic_wq_free()
77 		kfree(wq->bufs[i]);  in svnic_wq_free()
78 		wq->bufs[i] = NULL;  in svnic_wq_free()
81 	wq->ctrl = NULL;  in svnic_wq_free()
85 int vnic_wq_devcmd2_alloc(struct vnic_dev *vdev, struct vnic_wq *wq,  in vnic_wq_devcmd2_alloc()  argument
90 	wq->index = 0;  in vnic_wq_devcmd2_alloc()
91 	wq->vdev = vdev;  in vnic_wq_devcmd2_alloc()
93 	err = vnic_wq_get_ctrl(vdev, wq, 0, RES_TYPE_DEVCMD2);  in vnic_wq_devcmd2_alloc()
100 	svnic_wq_disable(wq);  in vnic_wq_devcmd2_alloc()
102 	err = vnic_wq_alloc_ring(vdev, wq, 0, desc_count, desc_size);  in vnic_wq_devcmd2_alloc()
109 int svnic_wq_alloc(struct vnic_dev *vdev, struct vnic_wq *wq,  in svnic_wq_alloc()  argument
114 	wq->index = index;  in svnic_wq_alloc()
115 	wq->vdev = vdev;  in svnic_wq_alloc()
117 	err = vnic_wq_get_ctrl(vdev, wq, index, RES_TYPE_WQ);  in svnic_wq_alloc()
124 	svnic_wq_disable(wq);  in svnic_wq_alloc()
126 	err = vnic_wq_alloc_ring(vdev, wq, index, desc_count, desc_size);  in svnic_wq_alloc()
130 	err = vnic_wq_alloc_bufs(wq);  in svnic_wq_alloc()
132 		svnic_wq_free(wq);  in svnic_wq_alloc()
140 void vnic_wq_init_start(struct vnic_wq *wq, unsigned int cq_index,  in vnic_wq_init_start()  argument
146 	unsigned int count = wq->ring.desc_count;  in vnic_wq_init_start()
148 	paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET;  in vnic_wq_init_start()
149 	writeq(paddr, &wq->ctrl->ring_base);  in vnic_wq_init_start()
150 	iowrite32(count, &wq->ctrl->ring_size);  in vnic_wq_init_start()
151 	iowrite32(fetch_index, &wq->ctrl->fetch_index);  in vnic_wq_init_start()
152 	iowrite32(posted_index, &wq->ctrl->posted_index);  in vnic_wq_init_start()
153 	iowrite32(cq_index, &wq->ctrl->cq_index);  in vnic_wq_init_start()
154 	iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable);  in vnic_wq_init_start()
155 	iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset);  in vnic_wq_init_start()
156 	iowrite32(0, &wq->ctrl->error_status);  in vnic_wq_init_start()
158 	wq->to_use = wq->to_clean =  in vnic_wq_init_start()
159 		&wq->bufs[fetch_index / VNIC_WQ_BUF_BLK_ENTRIES(count)]  in vnic_wq_init_start()
163 void svnic_wq_init(struct vnic_wq *wq, unsigned int cq_index,  in svnic_wq_init()  argument
167 	vnic_wq_init_start(wq, cq_index, 0, 0, error_interrupt_enable,  in svnic_wq_init()
171 unsigned int svnic_wq_error_status(struct vnic_wq *wq)  in svnic_wq_error_status()  argument
173 	return ioread32(&wq->ctrl->error_status);  in svnic_wq_error_status()
176 void svnic_wq_enable(struct vnic_wq *wq)  in svnic_wq_enable()  argument
178 	iowrite32(1, &wq->ctrl->enable);  in svnic_wq_enable()
181 int svnic_wq_disable(struct vnic_wq *wq)  in svnic_wq_disable()  argument
185 	iowrite32(0, &wq->ctrl->enable);  in svnic_wq_disable()
189 		if (!(ioread32(&wq->ctrl->running)))  in svnic_wq_disable()
194 	pr_err("Failed to disable WQ[%d]\n", wq->index);  in svnic_wq_disable()
199 void svnic_wq_clean(struct vnic_wq *wq,  in svnic_wq_clean()  argument
200 	void (*buf_clean)(struct vnic_wq *wq, struct vnic_wq_buf *buf))  in svnic_wq_clean()  argument
204 	BUG_ON(ioread32(&wq->ctrl->enable));  in svnic_wq_clean()
206 	buf = wq->to_clean;  in svnic_wq_clean()
208 	while (svnic_wq_desc_used(wq) > 0) {  in svnic_wq_clean()
210 		(*buf_clean)(wq, buf);  in svnic_wq_clean()
212 		buf = wq->to_clean = buf->next;  in svnic_wq_clean()
213 		wq->ring.desc_avail++;  in svnic_wq_clean()
216 	wq->to_use = wq->to_clean = wq->bufs[0];  in svnic_wq_clean()
218 	iowrite32(0, &wq->ctrl->fetch_index);  in svnic_wq_clean()
219 	iowrite32(0, &wq->ctrl->posted_index);  in svnic_wq_clean()
220 	iowrite32(0, &wq->ctrl->error_status);  in svnic_wq_clean()
222 	svnic_dev_clear_desc_ring(&wq->ring);  in svnic_wq_clean()