Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
37 lines
1019 B
ReStructuredText
37 lines
1019 B
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0
|
|
|
|
========================
|
|
tcm_qla2xxx Driver Notes
|
|
========================
|
|
|
|
tcm_qla2xxx jam_host attribute
|
|
------------------------------
|
|
There is now a new module endpoint attribute called jam_host
|
|
attribute::
|
|
|
|
jam_host: boolean=0/1
|
|
|
|
This attribute and accompanying code is only included if the
|
|
Kconfig parameter TCM_QLA2XXX_DEBUG is set to Y
|
|
|
|
By default this jammer code and functionality is disabled
|
|
|
|
Use this attribute to control the discarding of SCSI commands to a
|
|
selected host.
|
|
|
|
This may be useful for testing error handling and simulating slow drain
|
|
and other fabric issues.
|
|
|
|
Setting a boolean of 1 for the jam_host attribute for a particular host
|
|
will discard the commands for that host.
|
|
|
|
Reset back to 0 to stop the jamming.
|
|
|
|
Enable host 4 to be jammed::
|
|
|
|
echo 1 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:27:8f:ae/tpgt_1/attrib/jam_host
|
|
|
|
Disable jamming on host 4::
|
|
|
|
echo 0 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:27:8f:ae/tpgt_1/attrib/jam_host
|