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| author | Fam Zheng <famz@redhat.com> | 2014-09-28 09:48:00 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-09-30 13:30:51 +0200 |
| commit | 8e0a9320e94930fd6e5c2906c478203b80392f5c (patch) | |
| tree | 73d7bfb2fc1b5c0b1e5ec233fc5b64289a1edad3 /include/hw/scsi | |
| parent | d5776465ee9a55815792efa34d79de240f4ffd99 (diff) | |
| download | qemu-8e0a9320e94930fd6e5c2906c478203b80392f5c.tar.gz qemu-8e0a9320e94930fd6e5c2906c478203b80392f5c.tar.bz2 qemu-8e0a9320e94930fd6e5c2906c478203b80392f5c.zip | |
scsi: Introduce scsi_req_cancel_async
Devices will call this function to start an asynchronous cancellation. The
bus->info->cancel will be called after the request is canceled.
Devices will probably need to track a separate TMF request that triggers this
cancellation, and wait until the cancellation is done before completing it. So
we store a notifier list in SCSIRequest and in scsi_req_cancel_complete we
notify them.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/hw/scsi')
| -rw-r--r-- | include/hw/scsi/scsi.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/hw/scsi/scsi.h b/include/hw/scsi/scsi.h index 2127a335ba..b61bedb28c 100644 --- a/include/hw/scsi/scsi.h +++ b/include/hw/scsi/scsi.h @@ -5,6 +5,7 @@ #include "block/block.h" #include "hw/block/block.h" #include "sysemu/sysemu.h" +#include "qemu/notify.h" #define MAX_SCSI_DEVS 255 @@ -53,6 +54,7 @@ struct SCSIRequest { void *hba_private; size_t resid; SCSICommand cmd; + NotifierList cancel_notifiers; /* Note: * - fields before sense are initialized by scsi_req_alloc; @@ -266,6 +268,7 @@ uint8_t *scsi_req_get_buf(SCSIRequest *req); int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len); void scsi_req_cancel_complete(SCSIRequest *req); void scsi_req_cancel(SCSIRequest *req); +void scsi_req_cancel_async(SCSIRequest *req, Notifier *notifier); void scsi_req_retry(SCSIRequest *req); void scsi_device_purge_requests(SCSIDevice *sdev, SCSISense sense); void scsi_device_set_ua(SCSIDevice *sdev, SCSISense sense); |