kernel/include/target/target_core_backend.h, branch linux-4.1.y

target: Use a PASSTHROUGH flag instead of transport_types

2015-05-31T02:58:11Z

It seems like we only care if a transport is passthrough or not. Convert transport_type to a flags field and replace TRANSPORT_PLUGIN_* with a flag, TRANSPORT_FLAG_PASSTHROUGH. Signed-off-by: Andy Grover Reviewed-by: Ilias Tsitsimpis Signed-off-by: Nicholas Bellinger

target: Move passthrough CDB parsing into a common function

2015-05-31T02:57:59Z

Aside from whether they handle BIDI ops or not, parsing of the CDB by kernel and user SCSI passthrough modules should be identical. Move this into a new passthrough_parse_cdb() and call it from tcm-pscsi and tcm-user. Reported-by: Christoph Hellwig Reviewed-by: Ilias Tsitsimpis Signed-off-by: Andy Grover Signed-off-by: Nicholas Bellinger

target: do not reject FUA CDBs when write cache is enabled but emulate_write_cache is 0

2015-03-20T06:26:46Z

A check that rejects a CDB with FUA bit set if no write cache is emulated was added by the following commit: fde9f50 target: Add sanity checks for DPO/FUA bit usage The condition is as follows: if (!dev->dev_attrib.emulate_fua_write || !dev->dev_attrib.emulate_write_cache) However, this check is wrong if the backend device supports WCE but "emulate_write_cache" is disabled. This patch uses se_dev_check_wce() (previously named spc_check_dev_wce) to invoke transport->get_write_cache() if the device has a write cache or check the "emulate_write_cache" attribute otherwise. Reported-by: Christoph Hellwig Signed-off-by: Christophe Vu-Brugier Signed-off-by: Nicholas Bellinger

target: Drop left-over fabric_max_sectors attribute

2015-01-09T23:22:05Z

Now that fabric_max_sectors is no longer used to enforce the maximum I/O size, go ahead and drop it's left-over usage in target-core and associated backend drivers. Cc: Christoph Hellwig Cc: Martin K. Petersen Cc: Roland Dreier Signed-off-by: Nicholas Bellinger

target: Add EXPORT_SYMBOL for existing se_dev_set_*

2014-12-02T05:36:02Z

Now that target_core_backend_configfs.h macros will be using these se_dev_set attribute functions externally to allow backend drivers to populate different attributes, go ahead and add EXPORT_SYMBOL() for the existing default set of 30 device attributes. Also update target_core_backend.h with proper function prototypes. Signed-off-by: Nicholas Bellinger

target: Move dev_stat_cit to struct se_subsystem_api

2014-12-02T05:35:39Z

This patch adds support for dev_stat_cit as an external config_item_type using TB_CIT_SETUP() helper macro, and sets only ct_group_ops following existing code. It updates target_core_make_subdev() + target_core_setup_dev_attrib_cit() + struct target_backend_cits, and drops left-over target_core_dev_stat_cit from target_core_configfs.c code and update comments. This patch introduces no functional change from existing code. Signed-off-by: Nicholas Bellinger

target: Move dev_alua_tg_pt_gps_cit to struct se_subsystem_api

2014-12-02T05:35:39Z

This patch adds support for dev_alua_tg_pt_gps_cit as an external config_item_type using TB_CIT_SETUP() helper macro, and sets only ct_group_ops following existing code. It updates target_core_make_subdev() + target_core_setup_dev_attrib_cit() + struct target_backend_cits, and drops left-over target_core_dev_alua_tg_pt_gps_cit from target_core_configfs.c code and update comments. This patch introduces no functional change from existing code. Signed-off-by: Nicholas Bellinger

target: Move dev_wwn_cit to struct se_subsystem_api

2014-12-02T05:35:39Z

This patch adds support for dev_wwn_cit as an external config_item_type using TB_CIT_SETUP() helper macro, and sets both ct_item_ops + ct_attr following existing code. It updates target_core_make_subdev() + target_core_setup_dev_attrib_cit() + struct target_backend_cits, and drops left-over target_core_dev_wwn_cit from target_core_configfs.c code and update comments. This patch introduces no functional change from existing code. Signed-off-by: Nicholas Bellinger

target: Move dev_pr_cit to struct se_subsystem_api

2014-12-02T05:35:39Z

This patch adds support for dev_pr_cit as an external config_item_type using TB_CIT_SETUP() helper macro, and sets both ct_item_ops + ct_attr following existing code. It updates target_core_make_subdev() + target_core_setup_dev_attrib_cit() + struct target_backend_cits, and drops left-over target_core_dev_pr_cit from target_core_configfs.c code and update comments. This patch introduces no functional change from existing code. Signed-off-by: Nicholas Bellinger

target: Move dev_attrib_cit to struct se_subsystem_api

2014-12-02T05:35:22Z

This patch adds support for dev_attrib_cit as an external config_item_type using TB_CIT_SETUP() helper macro, and sets both ct_item_ops + ct_attr following existing code. It updates target_core_make_subdev() + target_core_setup_dev_attrib_cit() + struct target_backend_cits, and drops left-over target_core_dev_attrib_cit from target_core_configfs.c code and update comments. This patch introduces no functional change from existing code. Signed-off-by: Nicholas Bellinger