scsi_eh_prep_cmnd
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Name

scsi_eh_prep_cmnd — Save a scsi command info as part of error recory

Synopsis

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

Arguments

scmd

SCSI command structure to hijack

ses

structure to save restore information

cmnd

CDB to send. Can be NULL if no new cmnd is needed

cmnd_size

size in bytes of cmnd (must be <= BLK_MAX_CDB)

sense_bytes

size of sense data to copy. or 0 (if != 0 cmnd is ignored)

Description

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

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