diff options
| author |   Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> | 2017-03-17 04:17:31 +0100 |
|---|---|---|
| committer |   Cornelia Huck <cornelia.huck@de.ibm.com> | 2017-03-31 12:55:04 +0200 |
| commit | 63f1934d562de7cf3124de0ef617dcd3be98b279 (patch) | |
| tree | d3613dee9a8c23ab9db3770aa192b3fbe6a8a458 /drivers/s390/cio/vfio_ccw_private.h | |
| parent | vfio: ccw: define device_api strings (diff) | |
| download | linux-dev-63f1934d562de7cf3124de0ef617dcd3be98b279.tar.xz linux-dev-63f1934d562de7cf3124de0ef617dcd3be98b279.zip | |
vfio: ccw: basic implementation for vfio_ccw driver
To make vfio support subchannel devices, we need a css driver for
the vfio subchannels. This patch adds a basic vfio-ccw subchannel
driver for this purpose.
To enable VFIO for vfio-ccw, enable S390_CCW_IOMMU config option
and configure VFIO as required.
Acked-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Message-Id: <20170317031743.40128-5-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/vfio_ccw_private.h')
| -rw-r--r-- | drivers/s390/cio/vfio_ccw_private.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h new file mode 100644 index 000000000000..38d69a59cb12 --- /dev/null +++ b/drivers/s390/cio/vfio_ccw_private.h @@ -0,0 +1,25 @@ +/* + * 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 "css.h" + +/** + * struct vfio_ccw_private + * @sch: pointer to the subchannel + * @completion: synchronization helper of the I/O completion + */ +struct vfio_ccw_private { + struct subchannel *sch; + struct completion *completion; +} __aligned(8); + +#endif |