linux/include/target, branch v3.5

target: Add TFO->put_session() caller for HW fabric session shutdown

2012-06-13T02:33:05Z

This patch adds an optional target_core_fabric_ops->put_session() caller within the existing target_put_session() code path. This is required by tcm_qla2xxx code in order to invoke it's own fabric specific session shutdown handler using se_session->sess_kref. Signed-off-by: Joern Engel Cc: Roland Dreier Cc: Arun Easi Signed-off-by: Nicholas Bellinger

target: Add MI_REPORT_TARGET_PGS ext. header + implict_trans_secs attribute

2012-05-17T07:45:58Z

This patch adds support for ALUA MI_REPORT_TARGET_PGS extended header format defined within SPC-4. It changes target core ALUA emulation logic within target_emulate_report_target_port_groups() to support both the extended and original length only header formats. It includes adding a new 'implict_trans_secs' attribute for each ALUA target port group to control the value returned to the application client for an recommended implict translation timeout in seconds. By default this value is currently set to zero, and limited up to 255 by virtue of using a single byte in the extended header format. This value is used by target_emulate_report_target_port_groups() within the extended header logic to set IMPLICIT TRANSITION TIME as defined by spc4r30. Cc: Hannes Reinecke Cc: Rob Evers Cc: Christoph Hellwig Cc: Roland Dreier Signed-off-by: Nicholas Bellinger

target: make target_put_session void

2012-05-11T22:01:52Z

No real change, it effectively already was. Signed-off-by: Joern Engel Signed-off-by: Nicholas Bellinger

target: Remove max_sectors device attribute for modern se_task less code

2012-05-09T22:08:47Z

This patch removes the original usage of dev_attr->max_sectors in favor of dev_attr->hw_max_sectors that is now being enforced by target core from within transport_generic_cmd_sequencer() for SCF_SCSI_DATA_SG_IO_CDB ops. After the recent se_task removal patches from hch, this value for IBLOCK backends being set via configfs by userspace from an saved max_sectors value that is turning out to be problematic, so it makes sense to go ahead and remove this now legacy attribute all-together. This patch also continues to make se_dev_set_default_attribs() do (sectors / block_size) alignment for what actually get used by target_core_mod to be safe here, following the same alignment currently used by fabric_max_sectors. Reported-by: Andy Grover Cc: Christoph Hellwig Cc: Roland Dreier Signed-off-by: Nicholas Bellinger

target: remove the t_se_count field in struct se_cmd

2012-05-06T22:11:28Z

Now that tasks are gone we are guaranteed to only get a single completion per command, and thus don't need this counter. Signed-off-by: Christoph Hellwig Signed-off-by: Nicholas Bellinger

target: remove the t_task_cdbs_ex_left field in struct se_cmd

2012-05-06T22:11:27Z

Now that tasks are gone we are guaranteed to only get a single completion per command, and thus don't need this counter. Signed-off-by: Christoph Hellwig Signed-off-by: Nicholas Bellinger

target: remove the t_task_cdbs_left field in struct se_cmd

2012-05-06T22:11:27Z

Now that tasks are gone we are guaranteed to only get a single completion per command, and thus don't need this counter. Signed-off-by: Christoph Hellwig Signed-off-by: Nicholas Bellinger

target: remove struct se_task

2012-05-06T22:11:26Z

We can use struct se_cmd for everything it did. Make sure to pass the S/G list and data direction to the execution function to ease adding back BIDI support later on. Signed-off-by: Christoph Hellwig Signed-off-by: Nicholas Bellinger

target: move the state and execute lists to the command

2012-05-06T22:11:26Z

Signed-off-by: Christoph Hellwig Signed-off-by: Nicholas Bellinger

target: simplify command to task linkage

2012-05-06T22:11:25Z

Now that we only have a single task per command we can use a direct pointer to it instead of list. Signed-off-by: Christoph Hellwig Signed-off-by: Nicholas Bellinger