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scsi: docs: convert tcm_qla2xxx.txt to ReST

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Link: https://lore.kernel.org/r/de73fa02f38f67f54f22ef2842f9680c0b34434a.1583136624.git.mchehab+huawei@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Mauro Carvalho Chehab 2020-03-02 09:16:12 +01:00 committed by Martin K. Petersen
parent f02e84d29e
commit e92c45d272
2 changed files with 21 additions and 6 deletions
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1
Documentation/scsi/index.rst
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@ -43,5 +43,6 @@ Linux SCSI Subsystem
st
sym53c500_cs
sym53c8xx_2
tcm_qla2xxx
scsi_transport_srp/figures

20
Documentation/scsi/tcm_qla2xxx.txt → Documentation/scsi/tcm_qla2xxx.rst
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@ -1,22 +1,36 @@
.. SPDX-License-Identifier: GPL-2.0
========================
tcm_qla2xxx Driver Notes
========================
tcm_qla2xxx jam_host attribute
------------------------------
There is now a new module endpoint atribute called jam_host
attribute: jam_host: boolean=0/1
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
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
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