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scsi: introduce scsi_req_abort

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This covers the case of canceling a request's I/O and still
completing it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Paolo Bonzini 2011-04-18 17:14:51 +02:00
parent c557e88915
commit 19d110ab8a
3 changed files with 12 additions and 6 deletions
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9
hw/scsi-bus.c
View File

@ -549,6 +549,15 @@ void scsi_req_complete(SCSIRequest *req)
scsi_req_unref(req);
}
void scsi_req_abort(SCSIRequest *req, int status)
{
req->status = status;
if (req->dev && req->dev->info->cancel_io) {
req->dev->info->cancel_io(req);
}
scsi_req_complete(req);
}
void scsi_device_purge_requests(SCSIDevice *sdev)
{
SCSIRequest *req;

1
hw/scsi.h
View File

@ -114,6 +114,7 @@ int scsi_req_parse(SCSIRequest *req, uint8_t *buf);
void scsi_req_print(SCSIRequest *req);
void scsi_req_data(SCSIRequest *req, int len);
void scsi_req_complete(SCSIRequest *req);
void scsi_req_abort(SCSIRequest *req, int status);
void scsi_device_purge_requests(SCSIDevice *sdev);
#endif

8
hw/spapr_vscsi.c
View File

@ -463,10 +463,8 @@ static void vscsi_send_request_sense(VSCSIState *s, vscsi_req *req)
dprintf("VSCSI: Queued request sense tag 0x%x\n", req->qtag);
if (n < 0) {
fprintf(stderr, "VSCSI: REQUEST_SENSE wants write data !?!?!?\n");
sdev->info->cancel_io(req->sreq);
vscsi_makeup_sense(s, req, HARDWARE_ERROR, 0, 0);
vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0);
vscsi_put_req(s, req);
scsi_req_abort(req->sreq, CHECK_CONDITION);
return;
} else if (n == 0) {
return;
@ -547,10 +545,8 @@ static void vscsi_command_complete(SCSIRequest *sreq, int reason, uint32_t arg)
}
if (rc < 0) {
fprintf(stderr, "VSCSI: RDMA error rc=%d!\n", rc);
sdev->info->cancel_io(sreq);
vscsi_makeup_sense(s, req, HARDWARE_ERROR, 0, 0);
vscsi_send_rsp(s, req, CHECK_CONDITION, 0, 0);
vscsi_put_req(s, req);
scsi_req_abort(req->sreq, CHECK_CONDITION);
return;
}