Lines Matching refs:wq
28 static int vnic_wq_get_ctrl(struct vnic_dev *vdev, struct vnic_wq *wq, in vnic_wq_get_ctrl() argument
31 wq->ctrl = vnic_dev_get_res(vdev, res_type, index); in vnic_wq_get_ctrl()
33 if (!wq->ctrl) in vnic_wq_get_ctrl()
40 static int vnic_wq_alloc_ring(struct vnic_dev *vdev, struct vnic_wq *wq, in vnic_wq_alloc_ring() argument
43 return vnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count, desc_size); in vnic_wq_alloc_ring()
47 static int vnic_wq_alloc_bufs(struct vnic_wq *wq) in vnic_wq_alloc_bufs() argument
50 unsigned int i, j, count = wq->ring.desc_count; in vnic_wq_alloc_bufs()
54 wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ, GFP_ATOMIC); in vnic_wq_alloc_bufs()
55 if (!wq->bufs[i]) { in vnic_wq_alloc_bufs()
62 buf = wq->bufs[i]; in vnic_wq_alloc_bufs()
65 buf->desc = (u8 *)wq->ring.descs + in vnic_wq_alloc_bufs()
66 wq->ring.desc_size * buf->index; in vnic_wq_alloc_bufs()
68 buf->next = wq->bufs[0]; in vnic_wq_alloc_bufs()
71 buf->next = wq->bufs[i + 1]; in vnic_wq_alloc_bufs()
79 wq->to_use = wq->to_clean = wq->bufs[0]; in vnic_wq_alloc_bufs()
84 void vnic_wq_free(struct vnic_wq *wq) in vnic_wq_free() argument
89 vdev = wq->vdev; in vnic_wq_free()
91 vnic_dev_free_desc_ring(vdev, &wq->ring); in vnic_wq_free()
94 kfree(wq->bufs[i]); in vnic_wq_free()
95 wq->bufs[i] = NULL; in vnic_wq_free()
98 wq->ctrl = NULL; in vnic_wq_free()
102 int vnic_wq_alloc(struct vnic_dev *vdev, struct vnic_wq *wq, unsigned int index, in vnic_wq_alloc() argument
107 wq->index = index; in vnic_wq_alloc()
108 wq->vdev = vdev; in vnic_wq_alloc()
110 wq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_WQ, index); in vnic_wq_alloc()
111 if (!wq->ctrl) { in vnic_wq_alloc()
116 vnic_wq_disable(wq); in vnic_wq_alloc()
118 err = vnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count, desc_size); in vnic_wq_alloc()
122 err = vnic_wq_alloc_bufs(wq); in vnic_wq_alloc()
124 vnic_wq_free(wq); in vnic_wq_alloc()
132 int vnic_wq_devcmd2_alloc(struct vnic_dev *vdev, struct vnic_wq *wq, in vnic_wq_devcmd2_alloc() argument
137 wq->index = 0; in vnic_wq_devcmd2_alloc()
138 wq->vdev = vdev; in vnic_wq_devcmd2_alloc()
140 err = vnic_wq_get_ctrl(vdev, wq, 0, RES_TYPE_DEVCMD2); in vnic_wq_devcmd2_alloc()
145 vnic_wq_disable(wq); in vnic_wq_devcmd2_alloc()
147 err = vnic_wq_alloc_ring(vdev, wq, desc_count, desc_size); in vnic_wq_devcmd2_alloc()
153 void vnic_wq_init_start(struct vnic_wq *wq, unsigned int cq_index, in vnic_wq_init_start() argument
159 unsigned int count = wq->ring.desc_count; in vnic_wq_init_start()
161 paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET; in vnic_wq_init_start()
162 writeq(paddr, &wq->ctrl->ring_base); in vnic_wq_init_start()
163 iowrite32(count, &wq->ctrl->ring_size); in vnic_wq_init_start()
164 iowrite32(fetch_index, &wq->ctrl->fetch_index); in vnic_wq_init_start()
165 iowrite32(posted_index, &wq->ctrl->posted_index); in vnic_wq_init_start()
166 iowrite32(cq_index, &wq->ctrl->cq_index); in vnic_wq_init_start()
167 iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable); in vnic_wq_init_start()
168 iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset); in vnic_wq_init_start()
169 iowrite32(0, &wq->ctrl->error_status); in vnic_wq_init_start()
171 wq->to_use = wq->to_clean = in vnic_wq_init_start()
172 &wq->bufs[fetch_index / VNIC_WQ_BUF_BLK_ENTRIES] in vnic_wq_init_start()
177 void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index, in vnic_wq_init() argument
183 paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET; in vnic_wq_init()
184 writeq(paddr, &wq->ctrl->ring_base); in vnic_wq_init()
185 iowrite32(wq->ring.desc_count, &wq->ctrl->ring_size); in vnic_wq_init()
186 iowrite32(0, &wq->ctrl->fetch_index); in vnic_wq_init()
187 iowrite32(0, &wq->ctrl->posted_index); in vnic_wq_init()
188 iowrite32(cq_index, &wq->ctrl->cq_index); in vnic_wq_init()
189 iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable); in vnic_wq_init()
190 iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset); in vnic_wq_init()
191 iowrite32(0, &wq->ctrl->error_status); in vnic_wq_init()
194 unsigned int vnic_wq_error_status(struct vnic_wq *wq) in vnic_wq_error_status() argument
196 return ioread32(&wq->ctrl->error_status); in vnic_wq_error_status()
199 void vnic_wq_enable(struct vnic_wq *wq) in vnic_wq_enable() argument
201 iowrite32(1, &wq->ctrl->enable); in vnic_wq_enable()
204 int vnic_wq_disable(struct vnic_wq *wq) in vnic_wq_disable() argument
208 iowrite32(0, &wq->ctrl->enable); in vnic_wq_disable()
212 if (!(ioread32(&wq->ctrl->running))) in vnic_wq_disable()
217 printk(KERN_ERR "Failed to disable WQ[%d]\n", wq->index); in vnic_wq_disable()
222 void vnic_wq_clean(struct vnic_wq *wq, in vnic_wq_clean() argument
223 void (*buf_clean)(struct vnic_wq *wq, struct vnic_wq_buf *buf)) in vnic_wq_clean() argument
227 BUG_ON(ioread32(&wq->ctrl->enable)); in vnic_wq_clean()
229 buf = wq->to_clean; in vnic_wq_clean()
231 while (vnic_wq_desc_used(wq) > 0) { in vnic_wq_clean()
233 (*buf_clean)(wq, buf); in vnic_wq_clean()
235 buf = wq->to_clean = buf->next; in vnic_wq_clean()
236 wq->ring.desc_avail++; in vnic_wq_clean()
239 wq->to_use = wq->to_clean = wq->bufs[0]; in vnic_wq_clean()
241 iowrite32(0, &wq->ctrl->fetch_index); in vnic_wq_clean()
242 iowrite32(0, &wq->ctrl->posted_index); in vnic_wq_clean()
243 iowrite32(0, &wq->ctrl->error_status); in vnic_wq_clean()
245 vnic_dev_clear_desc_ring(&wq->ring); in vnic_wq_clean()