pci/pds/cmds.c

204 				    struct pds_vfio_lm_file *lm_file)
213 	if (!lm_file)
217 	err = dma_map_sgtable(dev, &lm_file->sg_table, dir, 0);
221 	lm_file->num_sge = lm_file->sg_table.nents;
224 	sgl_size = lm_file->num_sge * sizeof(struct pds_lm_sg_elem);
233 	for_each_sgtable_dma_sg(&lm_file->sg_table, sg, i) {
246 	lm_file->sgl = sgl;
247 	lm_file->sgl_addr = sgl_addr;
254 	lm_file->num_sge = 0;
255 	dma_unmap_sgtable(dev, &lm_file->sg_table, dir, 0);
261 				       struct pds_vfio_lm_file *lm_file)
263 	if (!lm_file)
267 	if (lm_file->sgl) {
268 		dma_unmap_single(dev, lm_file->sgl_addr,
269 				 lm_file->num_sge * sizeof(*lm_file->sgl),
271 		kfree(lm_file->sgl);
272 		lm_file->sgl = NULL;
273 		lm_file->sgl_addr = DMA_MAPPING_ERROR;
274 		lm_file->num_sge = 0;
278 	dma_unmap_sgtable(dev, &lm_file->sg_table, dir, 0);
292 	struct pds_vfio_lm_file *lm_file;
297 	lm_file = pds_vfio->save_file;
299 	err = pds_vfio_dma_map_lm_file(pdsc_dev, DMA_FROM_DEVICE, lm_file);
306 	cmd.lm_save.sgl_addr = cpu_to_le64(lm_file->sgl_addr);
307 	cmd.lm_save.num_sge = cpu_to_le32(lm_file->num_sge);
314 	pds_vfio_dma_unmap_lm_file(pdsc_dev, DMA_FROM_DEVICE, lm_file);
330 	struct pds_vfio_lm_file *lm_file;
335 	lm_file = pds_vfio->restore_file;
337 	err = pds_vfio_dma_map_lm_file(pdsc_dev, DMA_TO_DEVICE, lm_file);
345 	cmd.lm_restore.sgl_addr = cpu_to_le64(lm_file->sgl_addr);
346 	cmd.lm_restore.num_sge = cpu_to_le32(lm_file->num_sge);
353 	pds_vfio_dma_unmap_lm_file(pdsc_dev, DMA_TO_DEVICE, lm_file);