target: Update QUEUE ALGORITHM MODIFIER control page default

This patch adds the default 'Unrestricted reordering allowed' for SCSI
control mode page QUEUE ALGORITHM MODIFIER on a per se_device basis in
target_modesense_control() following spc4r23.  This includes a new
emuluate_rest_reord configfs attribute that currently (only) accepts
zero to signal 'Unrestricted reordering allowed' in control mode page
usage by the backend target device.

Reported-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@risingtidesystems.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 8204c76ca12b..86ca35539b94 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -662,6 +662,7 @@ struct se_dev_attrib {
         int             emulate_alua;
         int             enforce_pr_isids;
         int             is_nonrot;
+        int             emulate_rest_reord;
         u32             hw_block_size;
         u32             block_size;
         u32             hw_max_sectors;