199 static unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring,  in vnic_dev_desc_ring_size()  argument
211 	ring->base_align = 512;  in vnic_dev_desc_ring_size()
216 	ring->desc_count = ALIGN(desc_count, count_align);  in vnic_dev_desc_ring_size()
218 	ring->desc_size = ALIGN(desc_size, desc_align);  in vnic_dev_desc_ring_size()
220 	ring->size = ring->desc_count * ring->desc_size;  in vnic_dev_desc_ring_size()
221 	ring->size_unaligned = ring->size + ring->base_align;  in vnic_dev_desc_ring_size()
223 	return ring->size_unaligned;  in vnic_dev_desc_ring_size()
226 void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring)  in vnic_dev_clear_desc_ring()  argument
228 	memset(ring->descs, 0, ring->size);  in vnic_dev_clear_desc_ring()
231 int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring,  in vnic_dev_alloc_desc_ring()  argument
234 	vnic_dev_desc_ring_size(ring, desc_count, desc_size);  in vnic_dev_alloc_desc_ring()
236 	ring->descs_unaligned = pci_alloc_consistent(vdev->pdev,  in vnic_dev_alloc_desc_ring()
237 		ring->size_unaligned,  in vnic_dev_alloc_desc_ring()
238 		&ring->base_addr_unaligned);  in vnic_dev_alloc_desc_ring()
240 	if (!ring->descs_unaligned) {  in vnic_dev_alloc_desc_ring()
242 			(int)ring->size);  in vnic_dev_alloc_desc_ring()
246 	ring->base_addr = ALIGN(ring->base_addr_unaligned,  in vnic_dev_alloc_desc_ring()
247 		ring->base_align);  in vnic_dev_alloc_desc_ring()
248 	ring->descs = (u8 *)ring->descs_unaligned +  in vnic_dev_alloc_desc_ring()
249 		(ring->base_addr - ring->base_addr_unaligned);  in vnic_dev_alloc_desc_ring()
251 	vnic_dev_clear_desc_ring(ring);  in vnic_dev_alloc_desc_ring()
253 	ring->desc_avail = ring->desc_count - 1;  in vnic_dev_alloc_desc_ring()
258 void vnic_dev_free_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring)  in vnic_dev_free_desc_ring()  argument
260 	if (ring->descs) {  in vnic_dev_free_desc_ring()
262 			ring->size_unaligned,  in vnic_dev_free_desc_ring()
263 			ring->descs_unaligned,  in vnic_dev_free_desc_ring()
264 			ring->base_addr_unaligned);  in vnic_dev_free_desc_ring()
265 		ring->descs = NULL;  in vnic_dev_free_desc_ring()