#define VHOST_VDPA_GET_DEVICE_ID _IOR(VHOST_VIRTIO, 0x70, __u32)
#define VHOST_VDPA_GET_STATUS _IOR(VHOST_VIRTIO, 0x71, __u8)
#define VHOST_VDPA_SET_STATUS _IOW(VHOST_VIRTIO, 0x72, __u8)
+#define VHOST_VDPA_GET_CONFIG _IOR(VHOST_VIRTIO, 0x73, struct vhost_vdpa_config)
+#define VHOST_VDPA_SET_CONFIG _IOW(VHOST_VIRTIO, 0x74, struct vhost_vdpa_config)
#define VHOST_VDPA_SET_VRING_ENABLE _IOW(VHOST_VIRTIO, 0x75, struct vhost_vring_state)
#define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64)
#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64)
#define VHOST_IOTLB_MSG_V2 0x2
+struct vhost_vdpa_config {
+ uint32_t off;
+ uint32_t len;
+ uint8_t buf[0];
+};
+
struct vhost_msg {
uint32_t type;
uint32_t reserved;
return vhost_vdpa_ioctl(data->vhostfd, VHOST_VDPA_SET_STATUS, &status);
}
+static int
+vhost_vdpa_get_config(struct virtio_user_dev *dev, uint8_t *data, uint32_t off, uint32_t len)
+{
+ struct vhost_vdpa_data *vdpa_data = dev->backend_data;
+ struct vhost_vdpa_config *config;
+ int ret = 0;
+
+ config = malloc(sizeof(*config) + len);
+ if (!config) {
+ PMD_DRV_LOG(ERR, "Failed to allocate vDPA config data");
+ return -1;
+ }
+
+ config->off = off;
+ config->len = len;
+
+ ret = vhost_vdpa_ioctl(vdpa_data->vhostfd, VHOST_VDPA_GET_CONFIG, config);
+ if (ret) {
+ PMD_DRV_LOG(ERR, "Failed to get vDPA config (offset 0x%x, len 0x%x)", off, len);
+ ret = -1;
+ goto out;
+ }
+
+ memcpy(data, config->buf, len);
+out:
+ free(config);
+
+ return ret;
+}
+
+static int
+vhost_vdpa_set_config(struct virtio_user_dev *dev, const uint8_t *data, uint32_t off, uint32_t len)
+{
+ struct vhost_vdpa_data *vdpa_data = dev->backend_data;
+ struct vhost_vdpa_config *config;
+ int ret = 0;
+
+ config = malloc(sizeof(*config) + len);
+ if (!config) {
+ PMD_DRV_LOG(ERR, "Failed to allocate vDPA config data");
+ return -1;
+ }
+
+ config->off = off;
+ config->len = len;
+
+ memcpy(config->buf, data, len);
+
+ ret = vhost_vdpa_ioctl(vdpa_data->vhostfd, VHOST_VDPA_SET_CONFIG, config);
+ if (ret) {
+ PMD_DRV_LOG(ERR, "Failed to set vDPA config (offset 0x%x, len 0x%x)", off, len);
+ ret = -1;
+ }
+
+ free(config);
+
+ return ret;
+}
+
/**
* Set up environment to talk with a vhost vdpa backend.
*
data->vhostfd = open(dev->path, O_RDWR);
if (data->vhostfd < 0) {
- PMD_DRV_LOG(ERR, "Failed to open %s: %s\n",
+ PMD_DRV_LOG(ERR, "Failed to open %s: %s",
dev->path, strerror(errno));
free(data);
return -1;
if (ioctl(data->vhostfd, VHOST_VDPA_GET_DEVICE_ID, &did) < 0 ||
did != VIRTIO_ID_NETWORK) {
- PMD_DRV_LOG(ERR, "Invalid vdpa device ID: %u\n", did);
+ PMD_DRV_LOG(ERR, "Invalid vdpa device ID: %u", did);
close(data->vhostfd);
free(data);
return -1;
.set_vring_addr = vhost_vdpa_set_vring_addr,
.get_status = vhost_vdpa_get_status,
.set_status = vhost_vdpa_set_status,
+ .get_config = vhost_vdpa_get_config,
+ .set_config = vhost_vdpa_set_config,
.enable_qp = vhost_vdpa_enable_queue_pair,
.dma_map = vhost_vdpa_dma_map_batch,
.dma_unmap = vhost_vdpa_dma_unmap_batch,