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authorHannes Reinecke <hare@suse.de>2011-07-11 15:02:24 +0200
committerKevin Wolf <kwolf@redhat.com>2011-07-19 15:38:58 +0200
commitc5bf71a9a3b10c0cce877b7b3add4484322d3e2c (patch)
tree6f1264c7e1d0ad43429b136076db8629d930502a /hw/scsi.h
parent348e7b8dcd1460df4d681105f63dd90bba70496d (diff)
scsi: Add 'hba_private' to SCSIRequest
'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>
Diffstat (limited to 'hw/scsi.h')
-rw-r--r--hw/scsi.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/hw/scsi.h b/hw/scsi.h
index c1dca35b86..6b15bbc2cd 100644
--- a/hw/scsi.h
+++ b/hw/scsi.h
@@ -43,6 +43,7 @@ struct SCSIRequest {
} cmd;
BlockDriverAIOCB *aiocb;
bool enqueued;
+ void *hba_private;
QTAILQ_ENTRY(SCSIRequest) next;
};
@@ -67,7 +68,8 @@ struct SCSIDeviceInfo {
DeviceInfo qdev;
scsi_qdev_initfn init;
void (*destroy)(SCSIDevice *s);
- SCSIRequest *(*alloc_req)(SCSIDevice *s, uint32_t tag, uint32_t lun);
+ SCSIRequest *(*alloc_req)(SCSIDevice *s, uint32_t tag, uint32_t lun,
+ void *hba_private);
void (*free_req)(SCSIRequest *req);
int32_t (*send_command)(SCSIRequest *req, uint8_t *buf);
void (*read_data)(SCSIRequest *req);
@@ -138,8 +140,10 @@ extern const struct SCSISense sense_code_LUN_FAILURE;
int scsi_build_sense(SCSISense sense, uint8_t *buf, int len, int fixed);
int scsi_sense_valid(SCSISense sense);
-SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag, uint32_t lun);
-SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun);
+SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag,
+ uint32_t lun, void *hba_private);
+SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun,
+ void *hba_private);
int32_t scsi_req_enqueue(SCSIRequest *req, uint8_t *buf);
void scsi_req_free(SCSIRequest *req);
SCSIRequest *scsi_req_ref(SCSIRequest *req);