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SCSI_ADJUST_QUEUE_DE(9) SCSI mid layer SCSI_ADJUST_QUEUE_DE(9)

NAME

scsi_adjust_queue_depth - Let low level drivers change a device's queue depth

SYNOPSIS

void scsi_adjust_queue_depth(struct scsi_device * sdev, int tagged, int tags);

ARGUMENTS

sdev
SCSI Device in question
tagged
Do we use tagged queueing (non-0) or do we treat this device as an untagged device (0)
tags
Number of tags allowed if tagged queueing enabled, or number of commands the low level driver can queue up in non-tagged mode (as per cmd_per_lun).

RETURNS

Nothing

LOCK STATUS

None held on entry

NOTES

Low level drivers may call this at any time and we will do the right thing depending on whether or not the device is currently active and whether or not it even has the command blocks built yet.

AUTHORS

James Bottomley <James.Bottomley@hansenpartnership.com>
Author.
Rob Landley <rob@landley.net>
Author.

COPYRIGHT

March 2016 Kernel Hackers Manual 3.2.