47 	struct vdpasim vdpasim;  member
52 static struct vdpasim_blk *sim_to_blk(struct vdpasim *vdpasim)  in sim_to_blk()  argument
54 	return container_of(vdpasim, struct vdpasim_blk, vdpasim);  in sim_to_blk()
79 static bool vdpasim_blk_check_range(struct vdpasim *vdpasim, u64 start_sector,  in vdpasim_blk_check_range()  argument
83 		dev_dbg(&vdpasim->vdpa.dev,  in vdpasim_blk_check_range()
89 		dev_dbg(&vdpasim->vdpa.dev,  in vdpasim_blk_check_range()
96 		dev_dbg(&vdpasim->vdpa.dev,  in vdpasim_blk_check_range()
109 static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim,  in vdpasim_blk_handle_req()  argument
112 	struct vdpasim_blk *blk = sim_to_blk(vdpasim);  in vdpasim_blk_handle_req()
129 		dev_dbg(&vdpasim->vdpa.dev, "missing headers - out_iov: %u in_iov %u\n",  in vdpasim_blk_handle_req()
135 		dev_dbg(&vdpasim->vdpa.dev, "request in header too short\n");  in vdpasim_blk_handle_req()
149 		dev_dbg(&vdpasim->vdpa.dev, "request out header too short\n");  in vdpasim_blk_handle_req()
155 	type = vdpasim32_to_cpu(vdpasim, hdr.type);  in vdpasim_blk_handle_req()
156 	sector = vdpasim64_to_cpu(vdpasim, hdr.sector);  in vdpasim_blk_handle_req()
162 		dev_dbg(&vdpasim->vdpa.dev,  in vdpasim_blk_handle_req()
171 		if (!vdpasim_blk_check_range(vdpasim, sector,  in vdpasim_blk_handle_req()
183 			dev_dbg(&vdpasim->vdpa.dev,  in vdpasim_blk_handle_req()
194 		if (!vdpasim_blk_check_range(vdpasim, sector,  in vdpasim_blk_handle_req()
206 			dev_dbg(&vdpasim->vdpa.dev,  in vdpasim_blk_handle_req()
219 			dev_dbg(&vdpasim->vdpa.dev,  in vdpasim_blk_handle_req()
238 			dev_dbg(&vdpasim->vdpa.dev,  in vdpasim_blk_handle_req()
248 			dev_dbg(&vdpasim->vdpa.dev,  in vdpasim_blk_handle_req()
261 			dev_dbg(&vdpasim->vdpa.dev,  in vdpasim_blk_handle_req()
270 			dev_dbg(&vdpasim->vdpa.dev,  in vdpasim_blk_handle_req()
277 		if (!vdpasim_blk_check_range(vdpasim, sector, num_sectors,  in vdpasim_blk_handle_req()
293 		dev_dbg(&vdpasim->vdpa.dev,  in vdpasim_blk_handle_req()
324 static void vdpasim_blk_work(struct vdpasim *vdpasim)  in vdpasim_blk_work()  argument
329 	mutex_lock(&vdpasim->mutex);  in vdpasim_blk_work()
331 	if (!(vdpasim->status & VIRTIO_CONFIG_S_DRIVER_OK))  in vdpasim_blk_work()
334 	if (!vdpasim->running)  in vdpasim_blk_work()
338 		struct vdpasim_virtqueue *vq = &vdpasim->vqs[i];  in vdpasim_blk_work()
344 		while (vdpasim_blk_handle_req(vdpasim, vq)) {  in vdpasim_blk_work()
360 	mutex_unlock(&vdpasim->mutex);  in vdpasim_blk_work()
363 		vdpasim_schedule_work(vdpasim);  in vdpasim_blk_work()
366 static void vdpasim_blk_get_config(struct vdpasim *vdpasim, void *config)  in vdpasim_blk_get_config()  argument
372 	blk_config->capacity = cpu_to_vdpasim64(vdpasim, VDPASIM_BLK_CAPACITY);  in vdpasim_blk_get_config()
373 	blk_config->size_max = cpu_to_vdpasim32(vdpasim, VDPASIM_BLK_SIZE_MAX);  in vdpasim_blk_get_config()
374 	blk_config->seg_max = cpu_to_vdpasim32(vdpasim, VDPASIM_BLK_SEG_MAX);  in vdpasim_blk_get_config()
375 	blk_config->num_queues = cpu_to_vdpasim16(vdpasim, VDPASIM_BLK_VQ_NUM);  in vdpasim_blk_get_config()
376 	blk_config->min_io_size = cpu_to_vdpasim16(vdpasim, 1);  in vdpasim_blk_get_config()
377 	blk_config->opt_io_size = cpu_to_vdpasim32(vdpasim, 1);  in vdpasim_blk_get_config()
378 	blk_config->blk_size = cpu_to_vdpasim32(vdpasim, SECTOR_SIZE);  in vdpasim_blk_get_config()
381 		cpu_to_vdpasim32(vdpasim, SECTOR_SIZE);  in vdpasim_blk_get_config()
383 		cpu_to_vdpasim32(vdpasim, VDPASIM_BLK_DWZ_MAX_SECTORS);  in vdpasim_blk_get_config()
384 	blk_config->max_discard_seg = cpu_to_vdpasim32(vdpasim, 1);  in vdpasim_blk_get_config()
387 		cpu_to_vdpasim32(vdpasim, VDPASIM_BLK_DWZ_MAX_SECTORS);  in vdpasim_blk_get_config()
388 	blk_config->max_write_zeroes_seg = cpu_to_vdpasim32(vdpasim, 1);  in vdpasim_blk_get_config()
392 static void vdpasim_blk_free(struct vdpasim *vdpasim)  in vdpasim_blk_free()  argument
394 	struct vdpasim_blk *blk = sim_to_blk(vdpasim);  in vdpasim_blk_free()
414 	struct vdpasim *simdev;  in vdpasim_blk_dev_add()
462 	struct vdpasim *simdev = container_of(dev, struct vdpasim, vdpa);  in vdpasim_blk_dev_del()