160 unsigned int vnic_dev_desc_ring_size(struct vnic_dev_ring *ring,  in vnic_dev_desc_ring_size()  argument
173 	ring->base_align = 512;  in vnic_dev_desc_ring_size()
178 	ring->desc_count = ALIGN(desc_count, count_align);  in vnic_dev_desc_ring_size()
180 	ring->desc_size = ALIGN(desc_size, desc_align);  in vnic_dev_desc_ring_size()
182 	ring->size = ring->desc_count * ring->desc_size;  in vnic_dev_desc_ring_size()
183 	ring->size_unaligned = ring->size + ring->base_align;  in vnic_dev_desc_ring_size()
185 	return ring->size_unaligned;  in vnic_dev_desc_ring_size()
188 void vnic_dev_clear_desc_ring(struct vnic_dev_ring *ring)  in vnic_dev_clear_desc_ring()  argument
190 	memset(ring->descs, 0, ring->size);  in vnic_dev_clear_desc_ring()
193 int vnic_dev_alloc_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring,  in vnic_dev_alloc_desc_ring()  argument
196 	vnic_dev_desc_ring_size(ring, desc_count, desc_size);  in vnic_dev_alloc_desc_ring()
198 	ring->descs_unaligned = pci_alloc_consistent(vdev->pdev,  in vnic_dev_alloc_desc_ring()
199 		ring->size_unaligned,  in vnic_dev_alloc_desc_ring()
200 		&ring->base_addr_unaligned);  in vnic_dev_alloc_desc_ring()
202 	if (!ring->descs_unaligned) {  in vnic_dev_alloc_desc_ring()
205 			(int)ring->size);  in vnic_dev_alloc_desc_ring()
209 	ring->base_addr = ALIGN(ring->base_addr_unaligned,  in vnic_dev_alloc_desc_ring()
210 		ring->base_align);  in vnic_dev_alloc_desc_ring()
211 	ring->descs = (u8 *)ring->descs_unaligned +  in vnic_dev_alloc_desc_ring()
212 		(ring->base_addr - ring->base_addr_unaligned);  in vnic_dev_alloc_desc_ring()
214 	vnic_dev_clear_desc_ring(ring);  in vnic_dev_alloc_desc_ring()
216 	ring->desc_avail = ring->desc_count - 1;  in vnic_dev_alloc_desc_ring()
221 void vnic_dev_free_desc_ring(struct vnic_dev *vdev, struct vnic_dev_ring *ring)  in vnic_dev_free_desc_ring()  argument
223 	if (ring->descs) {  in vnic_dev_free_desc_ring()
225 			ring->size_unaligned,  in vnic_dev_free_desc_ring()
226 			ring->descs_unaligned,  in vnic_dev_free_desc_ring()
227 			ring->base_addr_unaligned);  in vnic_dev_free_desc_ring()
228 		ring->descs = NULL;  in vnic_dev_free_desc_ring()