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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-07-17 02:57:58 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-07-22 09:37:49 +0000 |
| commit | 5de619a31d9cb051d1f818e661af4e54def82316 (patch) | |
| tree | bbdf282c42fe3818607fff4f3a4f7d1b74ee064e /include/target | |
| parent | 1d20bb6147954d4fbd337a3d1b40c7eeae254cd7 (diff) | |
| download | linux-3.10-5de619a31d9cb051d1f818e661af4e54def82316.tar.gz linux-3.10-5de619a31d9cb051d1f818e661af4e54def82316.tar.bz2 linux-3.10-5de619a31d9cb051d1f818e661af4e54def82316.zip | |
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>
Diffstat (limited to 'include/target')
| -rw-r--r-- | include/target/target_core_base.h | 1 | ||||
| -rw-r--r-- | include/target/target_core_device.h | 1 | ||||
| -rw-r--r-- | include/target/target_core_transport.h | 2 |
3 files changed, 4 insertions, 0 deletions
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 8204c76ca12..86ca35539b9 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; diff --git a/include/target/target_core_device.h b/include/target/target_core_device.h index f3b6ae65545..46571912086 100644 --- a/include/target/target_core_device.h +++ b/include/target/target_core_device.h @@ -40,6 +40,7 @@ extern int se_dev_set_emulate_tpu(struct se_device *, int); extern int se_dev_set_emulate_tpws(struct se_device *, int); extern int se_dev_set_enforce_pr_isids(struct se_device *, int); extern int se_dev_set_is_nonrot(struct se_device *, int); +extern int se_dev_set_emulate_rest_reord(struct se_device *dev, int); extern int se_dev_set_queue_depth(struct se_device *, u32); extern int se_dev_set_max_sectors(struct se_device *, u32); extern int se_dev_set_optimal_sectors(struct se_device *, u32); diff --git a/include/target/target_core_transport.h b/include/target/target_core_transport.h index 54af39d8e3f..f41b07c7401 100644 --- a/include/target/target_core_transport.h +++ b/include/target/target_core_transport.h @@ -103,6 +103,8 @@ #define DA_STATUS_MAX_SECTORS_MAX 8192 /* By default don't report non-rotating (solid state) medium */ #define DA_IS_NONROT 0 +/* Queue Algorithm Modifier default for restricted reordering in control mode page */ +#define DA_EMULATE_REST_REORD 0 #define SE_MODE_PAGE_BUF 512 |