linux-toradex.git/drivers/target/target_core_configfs.c, branch v3.11

target: Alter core_pr_dump_initiator_port for ease of use

2013-06-14T07:04:31+00:00

We use this function exclusively in debug prints. Instead of returning
0 or 1 if isid is present, just set buf to "" if it isn't there. This
saves callers from having to check the return value.

Signed-off-by: Andy Grover 
Signed-off-by: Nicholas Bellinger

target: Have dev/enable show if TCM device is configured

2013-05-03T23:46:02+00:00

User tools need to know if the device is properly configured, since if
not, some other attributes are invalid.

Signed-off-by: Andy Grover 
Signed-off-by: Nicholas Bellinger

target: Add device attribute to expose config_item_name for INQUIRY model

2013-02-13T19:27:58+00:00

This patch changes LIO to use the configfs backend device name as the
model if you echo '1' to an individual device's emulate_model_alias attribute.
This is a valid operation only on devices with an export count of 0.

Signed-off-by: Tregaron Bayly 
Signed-off-by: Nicholas Bellinger

target/configfs: use kmalloc() instead of kzalloc() for default groups

2012-11-28T06:49:24+00:00

All elements are assigned even the NULL member at the end so there is no
reason to allocate zeroed memory.

(nab: Fix up minor apply breakage in for-next)

Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Nicholas Bellinger

target/configfs: allocate only 6 slots for dev_cg->default_groups

2012-11-28T06:49:23+00:00

Only slots 0-5 are used so 6 slots should be enough. I don't see anyone
writting anything else than NULL into ->default_groups[5] so a "late"
initialisation should not happen here.

(nab: Fix up minor apply breakage in for-next)

Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Nicholas Bellinger

target/configfs: allocate pointers instead of full struct for default_groups

2012-11-28T06:49:22+00:00

default_groups is defined as struct config_group **default_groups so
we don't need to allocate a whole struct but only enough space for a
pointer that points there.

(nab: Fix up minor apply breakage in for-next)

Signed-off-by: Sebastian Andrzej Siewior 
Signed-off-by: Nicholas Bellinger

target: Update copyright information to 2012

2012-11-28T06:47:02+00:00

v2: Use correct target_core_stat.c 2006 copyright year
v3: Drop extra unnessary legal verbage from header (hch)

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

target: Add/check max_write_same_len device attribute + update block limits VPD

2012-11-15T20:27:21+00:00

This patch adds a new max_write_same_len device attribute for use with
WRITE_SAME w/ UNMAP=0 backend emulation.  This can be useful for
lowering the default backend value (IBLOCK uses 0xFFFF).

Also, update block limits VPD emulation code in spc_emulate_evpd_b0() to
report MAXIMUM WRITE SAME LENGTH, and enforce max_write_same_len during
sbc_parse() -> sbc_setup_write_same() CDB sanity checking for all emulated
WRITE_SAME w/ UNMAP=0 cases.

(Robert: Move max_write_same_len check in sbc_setup_write_same() to
         check both WRITE_SAME w/ UNMAP=1 and w/ UNMAP=0 cases)

Cc: Christoph Hellwig 
Cc: Martin K. Petersen 
Cc: Robert Elliott 
Signed-off-by: Nicholas Bellinger

target: simplify alua support

2012-11-07T04:55:45+00:00

We always support ALUA for virtual backends, and never for physical ones.  Simplify
the code to just deal with these two cases and remove the superflous abstractions.

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

target: simplify reservations code

2012-11-07T04:55:45+00:00

We do not support host-level reservations for the pscsi backend, and all
virtual backends are newere than SCSI-2, so just make the combined
SPC-3 + SCSI-2 support the only supported variant and kill the switches
for the different implementations, given that this code handles the no-op
version just fine.

(hch: Update DRF_SPC2_RESERVATIONS lock usage)

Signed-off-by: Christoph Hellwig