tran_quiesce(9e)

1tran_quiesce(9E)              Driver Entry Points             tran_quiesce(9E)
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NAME

6       tran_quiesce, tran_unquiesce - quiesce and unquiesce a SCSI bus
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SYNOPSIS

9       #include <sys/scsi/scsi.h>
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11       int prefixtran_quiesce(dev_info_t *hba_dip);
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14       int prefixtran_unquiesce(dev_info_t *hba_dip);
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INTERFACE LEVEL

18       Solaris DDI
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PARAMETERS

21       hba_dip    The dev_info_t pointer associated with the SCSI HBA.
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DESCRIPTION

25       The     tran_quiesce()    and     tran_unquiesce()   vectors   in   the
26       scsi_hba_tran(9S)  structure  should  be  initialized  during  the  HBA
27       driver's   attach(9E).  They  are  HBA entry points to be called when a
28       user initiates quiesce and unquiesce operations through device  control
29       interfaces.
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32       tran_quiesce() should wait for all outstanding commands to complete and
33       blocks (or queues) any I/O  requests  issued.  tran_unquiesce()  should
34       allow I/O activities to resume on the SCSI bus.
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37       Implementation is hardware specific.
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RETURN VALUES

40       tran_quiesce() and tran_unquiesce() should return:
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42       0           Successful completion.
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45       Non-zero    An error occurred.
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ATTRIBUTES

49       See attributes(5) for a description of the following attributes:
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54       ┌─────────────────────────────┬─────────────────────────────┐
55       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
56       ├─────────────────────────────┼─────────────────────────────┤
57       │Interface Stability          │Committed                    │
58       └─────────────────────────────┴─────────────────────────────┘
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