Lines Matching refs:wq
31 static int vnic_wq_alloc_bufs(struct vnic_wq *wq) in vnic_wq_alloc_bufs() argument
34 unsigned int i, j, count = wq->ring.desc_count; in vnic_wq_alloc_bufs()
38 wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ(count), GFP_KERNEL); in vnic_wq_alloc_bufs()
39 if (!wq->bufs[i]) in vnic_wq_alloc_bufs()
44 buf = wq->bufs[i]; in vnic_wq_alloc_bufs()
47 buf->desc = (u8 *)wq->ring.descs + in vnic_wq_alloc_bufs()
48 wq->ring.desc_size * buf->index; in vnic_wq_alloc_bufs()
50 buf->next = wq->bufs[0]; in vnic_wq_alloc_bufs()
54 buf->next = wq->bufs[i + 1]; in vnic_wq_alloc_bufs()
64 wq->to_use = wq->to_clean = wq->bufs[0]; in vnic_wq_alloc_bufs()
69 void vnic_wq_free(struct vnic_wq *wq) in vnic_wq_free() argument
74 vdev = wq->vdev; in vnic_wq_free()
76 vnic_dev_free_desc_ring(vdev, &wq->ring); in vnic_wq_free()
79 if (wq->bufs[i]) { in vnic_wq_free()
80 kfree(wq->bufs[i]); in vnic_wq_free()
81 wq->bufs[i] = NULL; in vnic_wq_free()
85 wq->ctrl = NULL; in vnic_wq_free()
88 int vnic_wq_alloc(struct vnic_dev *vdev, struct vnic_wq *wq, unsigned int index, in vnic_wq_alloc() argument
93 wq->index = index; in vnic_wq_alloc()
94 wq->vdev = vdev; in vnic_wq_alloc()
96 wq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_WQ, index); in vnic_wq_alloc()
97 if (!wq->ctrl) { in vnic_wq_alloc()
102 vnic_wq_disable(wq); in vnic_wq_alloc()
104 err = vnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count, desc_size); in vnic_wq_alloc()
108 err = vnic_wq_alloc_bufs(wq); in vnic_wq_alloc()
110 vnic_wq_free(wq); in vnic_wq_alloc()
117 int enic_wq_devcmd2_alloc(struct vnic_dev *vdev, struct vnic_wq *wq, in enic_wq_devcmd2_alloc() argument
122 wq->index = 0; in enic_wq_devcmd2_alloc()
123 wq->vdev = vdev; in enic_wq_devcmd2_alloc()
125 wq->ctrl = vnic_dev_get_res(vdev, RES_TYPE_DEVCMD2, 0); in enic_wq_devcmd2_alloc()
126 if (!wq->ctrl) in enic_wq_devcmd2_alloc()
128 vnic_wq_disable(wq); in enic_wq_devcmd2_alloc()
129 err = vnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count, desc_size); in enic_wq_devcmd2_alloc()
134 void enic_wq_init_start(struct vnic_wq *wq, unsigned int cq_index, in enic_wq_init_start() argument
140 unsigned int count = wq->ring.desc_count; in enic_wq_init_start()
142 paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET; in enic_wq_init_start()
143 writeq(paddr, &wq->ctrl->ring_base); in enic_wq_init_start()
144 iowrite32(count, &wq->ctrl->ring_size); in enic_wq_init_start()
145 iowrite32(fetch_index, &wq->ctrl->fetch_index); in enic_wq_init_start()
146 iowrite32(posted_index, &wq->ctrl->posted_index); in enic_wq_init_start()
147 iowrite32(cq_index, &wq->ctrl->cq_index); in enic_wq_init_start()
148 iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable); in enic_wq_init_start()
149 iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset); in enic_wq_init_start()
150 iowrite32(0, &wq->ctrl->error_status); in enic_wq_init_start()
152 wq->to_use = wq->to_clean = in enic_wq_init_start()
153 &wq->bufs[fetch_index / VNIC_WQ_BUF_BLK_ENTRIES(count)] in enic_wq_init_start()
157 void vnic_wq_init(struct vnic_wq *wq, unsigned int cq_index, in vnic_wq_init() argument
161 enic_wq_init_start(wq, cq_index, 0, 0, in vnic_wq_init()
166 unsigned int vnic_wq_error_status(struct vnic_wq *wq) in vnic_wq_error_status() argument
168 return ioread32(&wq->ctrl->error_status); in vnic_wq_error_status()
171 void vnic_wq_enable(struct vnic_wq *wq) in vnic_wq_enable() argument
173 iowrite32(1, &wq->ctrl->enable); in vnic_wq_enable()
176 int vnic_wq_disable(struct vnic_wq *wq) in vnic_wq_disable() argument
179 struct vnic_dev *vdev = wq->vdev; in vnic_wq_disable()
181 iowrite32(0, &wq->ctrl->enable); in vnic_wq_disable()
185 if (!(ioread32(&wq->ctrl->running))) in vnic_wq_disable()
190 vdev_neterr(vdev, "Failed to disable WQ[%d]\n", wq->index); in vnic_wq_disable()
195 void vnic_wq_clean(struct vnic_wq *wq, in vnic_wq_clean() argument
196 void (*buf_clean)(struct vnic_wq *wq, struct vnic_wq_buf *buf)) in vnic_wq_clean() argument
200 buf = wq->to_clean; in vnic_wq_clean()
202 while (vnic_wq_desc_used(wq) > 0) { in vnic_wq_clean()
204 (*buf_clean)(wq, buf); in vnic_wq_clean()
206 buf = wq->to_clean = buf->next; in vnic_wq_clean()
207 wq->ring.desc_avail++; in vnic_wq_clean()
210 wq->to_use = wq->to_clean = wq->bufs[0]; in vnic_wq_clean()
212 iowrite32(0, &wq->ctrl->fetch_index); in vnic_wq_clean()
213 iowrite32(0, &wq->ctrl->posted_index); in vnic_wq_clean()
214 iowrite32(0, &wq->ctrl->error_status); in vnic_wq_clean()
216 vnic_dev_clear_desc_ring(&wq->ring); in vnic_wq_clean()