1SCSI_EH_PREP_CMND(9)            SCSI mid layer            SCSI_EH_PREP_CMND(9)
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NAME

6       scsi_eh_prep_cmnd - Save a scsi command info as part of error recovery
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SYNOPSIS

9       void scsi_eh_prep_cmnd(struct scsi_cmnd * scmd,
10                              struct scsi_eh_save * ses, unsigned char * cmnd,
11                              int cmnd_size, unsigned sense_bytes);
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ARGUMENTS

14       scmd
15           SCSI command structure to hijack
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17       ses
18           structure to save restore information
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20       cmnd
21           CDB to send. Can be NULL if no new cmnd is needed
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23       cmnd_size
24           size in bytes of cmnd (must be <= BLK_MAX_CDB)
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26       sense_bytes
27           size of sense data to copy. or 0 (if != 0 cmnd is ignored)
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DESCRIPTION

30       This function is used to save a scsi command information before
31       re-execution as part of the error recovery process. If sense_bytes is 0
32       the command sent must be one that does not transfer any data. If
33       sense_bytes != 0 cmnd is ignored and this functions sets up a
34       REQUEST_SENSE command and cmnd buffers to read sense_bytes into
35       scmd->sense_buffer.
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AUTHORS

38       James Bottomley <James.Bottomley@hansenpartnership.com>
39           Author.
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41       Rob Landley <rob@landley.net>
42           Author.
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45Kernel Hackers Manual 3.10         June 2019              SCSI_EH_PREP_CMND(9)
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