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scsi: Add 'hba_private' to SCSIRequest

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'tag' is just an abstraction to identify the command
from the driver. So we should make that explicit by
replacing 'tag' with a driver-defined pointer 'hba_private'.
This saves the lookup for driver handling several commands
in parallel.
'tag' is still being kept for tracing purposes.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Hannes Reinecke 2011-07-11 15:02:24 +02:00 • committed by Kevin Wolf
parent 348e7b8dcd
commit c5bf71a9a3
8 changed files with 37 additions and 52 deletions
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4
hw/scsi-disk.c
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@ -81,13 +81,13 @@ static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type);
static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf);
static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag,
uint32_t lun)
uint32_t lun, void *hba_private)
{
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d);
SCSIRequest *req;
SCSIDiskReq *r;
req = scsi_req_alloc(sizeof(SCSIDiskReq), &s->qdev, tag, lun);
req = scsi_req_alloc(sizeof(SCSIDiskReq), &s->qdev, tag, lun, hba_private);
r = DO_UPCAST(SCSIDiskReq, req, req);
r->iov.iov_base = qemu_blockalign(s->bs, SCSI_DMA_BUF_SIZE);
return req;