| /* |
| * Private stuff for vfio_ccw driver |
| * |
| * Copyright IBM Corp. 2017 |
| * |
| * Author(s): Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> |
| * Xiao Feng Ren <renxiaof@linux.vnet.ibm.com> |
| */ |
| |
| #ifndef _VFIO_CCW_PRIVATE_H_ |
| #define _VFIO_CCW_PRIVATE_H_ |
| |
| #include <linux/completion.h> |
| #include <linux/vfio_ccw.h> |
| |
| #include "css.h" |
| #include "vfio_ccw_cp.h" |
| |
| /** |
| * struct vfio_ccw_private |
| * @sch: pointer to the subchannel |
| * @completion: synchronization helper of the I/O completion |
| * @avail: available for creating a mediated device |
| * @mdev: pointer to the mediated device |
| * @nb: notifier for vfio events |
| * @io_region: MMIO region to input/output I/O arguments/results |
| * @wait_q: wait for interrupt |
| * @intparm: record current interrupt parameter, used for wait interrupt |
| * @cp: channel program for the current I/O operation |
| * @irb: irb info received from interrupt |
| * @scsw: scsw info |
| */ |
| struct vfio_ccw_private { |
| struct subchannel *sch; |
| struct completion *completion; |
| atomic_t avail; |
| struct mdev_device *mdev; |
| struct notifier_block nb; |
| struct ccw_io_region io_region; |
| |
| wait_queue_head_t wait_q; |
| u32 intparm; |
| struct channel_program cp; |
| struct irb irb; |
| union scsw scsw; |
| } __aligned(8); |
| |
| extern int vfio_ccw_mdev_reg(struct subchannel *sch); |
| extern void vfio_ccw_mdev_unreg(struct subchannel *sch); |
| |
| extern int vfio_ccw_sch_quiesce(struct subchannel *sch); |
| extern int vfio_ccw_sch_cmd_request(struct vfio_ccw_private *private); |
| |
| #endif |
