Lines Matching refs:wq
26 static inline int vnic_wq_get_ctrl(struct vnic_dev *vdev, struct vnic_wq *wq,
29 wq->ctrl = svnic_dev_get_res(vdev, res_type, index);
30 if (!wq->ctrl)
36 static inline int vnic_wq_alloc_ring(struct vnic_dev *vdev, struct vnic_wq *wq,
39 return svnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count,
43 static int vnic_wq_alloc_bufs(struct vnic_wq *wq)
46 unsigned int i, j, count = wq->ring.desc_count;
50 wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ, GFP_ATOMIC);
51 if (!wq->bufs[i]) {
59 buf = wq->bufs[i];
62 buf->desc = (u8 *)wq->ring.descs +
63 wq->ring.desc_size * buf->index;
65 buf->next = wq->bufs[0];
68 buf->next = wq->bufs[i + 1];
76 wq->to_use = wq->to_clean = wq->bufs[0];
81 void svnic_wq_free(struct vnic_wq *wq)
86 vdev = wq->vdev;
88 svnic_dev_free_desc_ring(vdev, &wq->ring);
91 kfree(wq->bufs[i]);
92 wq->bufs[i] = NULL;
95 wq->ctrl = NULL;
99 int vnic_wq_devcmd2_alloc(struct vnic_dev *vdev, struct vnic_wq *wq,
104 wq->index = 0;
105 wq->vdev = vdev;
107 err = vnic_wq_get_ctrl(vdev, wq, 0, RES_TYPE_DEVCMD2);
114 svnic_wq_disable(wq);
116 err = vnic_wq_alloc_ring(vdev, wq, 0, desc_count, desc_size);
123 int svnic_wq_alloc(struct vnic_dev *vdev, struct vnic_wq *wq,
128 wq->index = index;
129 wq->vdev = vdev;
131 err = vnic_wq_get_ctrl(vdev, wq, index, RES_TYPE_WQ);
138 svnic_wq_disable(wq);
140 err = vnic_wq_alloc_ring(vdev, wq, index, desc_count, desc_size);
144 err = vnic_wq_alloc_bufs(wq);
146 svnic_wq_free(wq);
154 void vnic_wq_init_start(struct vnic_wq *wq, unsigned int cq_index,
160 unsigned int count = wq->ring.desc_count;
162 paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET;
163 writeq(paddr, &wq->ctrl->ring_base);
164 iowrite32(count, &wq->ctrl->ring_size);
165 iowrite32(fetch_index, &wq->ctrl->fetch_index);
166 iowrite32(posted_index, &wq->ctrl->posted_index);
167 iowrite32(cq_index, &wq->ctrl->cq_index);
168 iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable);
169 iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset);
170 iowrite32(0, &wq->ctrl->error_status);
172 wq->to_use = wq->to_clean =
173 &wq->bufs[fetch_index / VNIC_WQ_BUF_BLK_ENTRIES(count)]
177 void svnic_wq_init(struct vnic_wq *wq, unsigned int cq_index,
181 vnic_wq_init_start(wq, cq_index, 0, 0, error_interrupt_enable,
185 unsigned int svnic_wq_error_status(struct vnic_wq *wq)
187 return ioread32(&wq->ctrl->error_status);
190 void svnic_wq_enable(struct vnic_wq *wq)
192 iowrite32(1, &wq->ctrl->enable);
195 int svnic_wq_disable(struct vnic_wq *wq)
199 iowrite32(0, &wq->ctrl->enable);
203 if (!(ioread32(&wq->ctrl->running)))
208 pr_err("Failed to disable WQ[%d]\n", wq->index);
213 void svnic_wq_clean(struct vnic_wq *wq,
214 void (*buf_clean)(struct vnic_wq *wq, struct vnic_wq_buf *buf))
218 BUG_ON(ioread32(&wq->ctrl->enable));
220 buf = wq->to_clean;
222 while (svnic_wq_desc_used(wq) > 0) {
224 (*buf_clean)(wq, buf);
226 buf = wq->to_clean = buf->next;
227 wq->ring.desc_avail++;
230 wq->to_use = wq->to_clean = wq->bufs[0];
232 iowrite32(0, &wq->ctrl->fetch_index);
233 iowrite32(0, &wq->ctrl->posted_index);
234 iowrite32(0, &wq->ctrl->error_status);
236 svnic_dev_clear_desc_ring(&wq->ring);