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015487b89f
linux/drivers/target
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Roland Dreier 015487b89f target: Untangle front-end and back-end meanings of max_sectors attribute 
se_dev_attrib.max_sectors currently has two independent meanings:

 - It is reported in the block limits VPD page as the maximum transfer
   length, ie the largest IO that the front-end (fabric) can handle.
   Also the target core doesn't enforce this maximum transfer length.

 - It is used to hold the size of the largest IO that the back-end can
   handle, so we know when to split SCSI commands into multiple tasks.

Fix this by adding a new se_dev_attrib.fabric_max_sectors to hold the
maximum transfer length, and checking incoming IOs against that limit.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-02-25 14:37:49 -08:00
..
iscsi target: Add SCF_SCSI_TMR_CDB usage and drop se_tmr_req_cache 2012-02-25 14:37:47 -08:00
loopback tcm_loop: switch to using transport_handle_cdb_direct 2012-02-25 14:37:48 -08:00
tcm_fc tcm_fc: Convert ft_send_tm to use target_submit_tmr 2012-02-25 14:37:48 -08:00
Kconfig iscsi-target: Add iSCSI fabric support for target v4.1 2011-07-26 09:16:43 +00:00
Makefile target: remove the ->transport_split_cdb callback in se_cmd 2011-10-24 03:21:15 +00:00
target_core_alua.c target: Allow control CDBs with data > 1 page 2012-01-18 08:35:58 +00:00
target_core_alua.h target: pass the se_task to the CDB emulation callback 2011-11-04 08:00:17 +00:00
target_core_cdb.c target: Untangle front-end and back-end meanings of max_sectors attribute 2012-02-25 14:37:49 -08:00
target_core_configfs.c target: Untangle front-end and back-end meanings of max_sectors attribute 2012-02-25 14:37:49 -08:00
target_core_device.c target: Untangle front-end and back-end meanings of max_sectors attribute 2012-02-25 14:37:49 -08:00
target_core_fabric_configfs.c target: fix return code of core_tpg_.*_lun 2012-01-18 08:33:44 +00:00
target_core_fabric_lib.c target: remove useless casts 2011-12-14 11:28:07 +00:00
target_core_file.c target: remove useless casts 2011-12-14 11:28:07 +00:00
target_core_file.h target: make the ->get_cdb method optional 2011-10-24 03:21:11 +00:00
target_core_hba.c target: header reshuffle, part2 2011-12-14 11:26:05 +00:00
target_core_iblock.c target: increase iblock task sizes 2012-02-25 14:37:46 -08:00
target_core_iblock.h target: increase iblock task sizes 2012-02-25 14:37:46 -08:00
target_core_internal.h target: Untangle front-end and back-end meanings of max_sectors attribute 2012-02-25 14:37:49 -08:00
target_core_pr.c target: Use LIST_HEAD()/DEFINE_MUTEX() for static objects 2012-02-25 14:37:46 -08:00
target_core_pr.h target: Move core_scsi3_check_cdb_abort_and_preempt 2011-12-14 11:27:34 +00:00
target_core_pscsi.c target: Allow control CDBs with data > 1 page 2012-01-18 08:35:58 +00:00
target_core_pscsi.h target: cleanup pscsi request submission 2011-10-24 03:20:44 +00:00
target_core_rd.c target: use \n as a separator for configuration 2011-12-14 11:27:23 +00:00
target_core_rd.h target: make the ->get_cdb method optional 2011-10-24 03:21:11 +00:00
target_core_stat.c target: remove useless casts 2011-12-14 11:28:07 +00:00
target_core_tmr.c target: Add TMR_ABORT_TASK task management support 2012-02-25 14:37:49 -08:00
target_core_tpg.c target: fix return code of core_tpg_.*_lun 2012-01-18 08:33:44 +00:00
target_core_transport.c target: Untangle front-end and back-end meanings of max_sectors attribute 2012-02-25 14:37:49 -08:00
target_core_ua.c target: header reshuffle, part2 2011-12-14 11:26:05 +00:00
target_core_ua.h [SCSI] target: Add LIO target core v4.0.0-rc6 2011-01-14 10:12:29 -06:00