Commit e92c45d2 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab Committed by Martin K. Petersen
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scsi: docs: convert tcm_qla2xxx.txt to ReST 

Link: https://lore.kernel.org/r/de73fa02f38f67f54f22ef2842f9680c0b34434a.1583136624.git.mchehab+huawei@kernel.org


Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent f02e84d2

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

Documentation/scsi/tcm_qla2xxx.txt→Documentation/scsi/tcm_qla2xxx.rst

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.. 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