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| author |   Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com> | 2017-03-17 04:17:35 +0100 |
|---|---|---|
| committer |   Cornelia Huck <cornelia.huck@de.ibm.com> | 2017-03-31 12:55:07 +0200 |
| commit | 4e149e431a2858b86b4f9c801b2a4dde50c929f9 (patch) | |
| tree | a7547d4f98ea5e31a7516806e32feeaaa41b14be /drivers/s390/cio/vfio_ccw_private.h | |
| parent | vfio: ccw: introduce ccw_io_region (diff) | |
| download | linux-dev-4e149e431a2858b86b4f9c801b2a4dde50c929f9.tar.xz linux-dev-4e149e431a2858b86b4f9c801b2a4dde50c929f9.zip | |
vfio: ccw: handle ccw command request
We implement the basic ccw command handling infrastructure
here:
1. Translate the ccw commands.
2. Issue the translated ccw commands to the device.
3. Once we get the execution result, update the guest SCSW
with it.
Acked-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Message-Id: <20170317031743.40128-9-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 | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h index 359e96ba9c6c..79e53378f212 100644 --- a/drivers/s390/cio/vfio_ccw_private.h +++ b/drivers/s390/cio/vfio_ccw_private.h @@ -10,9 +10,11 @@ #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 @@ -22,6 +24,11 @@ * @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; @@ -30,11 +37,18 @@ struct vfio_ccw_private { 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 |