scsi: docs: convert tcm_qla2xxx.txt to ReST

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>

Documentation/scsi/index.rst

@@ -43,5 +43,6 @@ Linux SCSI Subsystem
    st
    sym53c500_cs
    sym53c8xx_2
+   tcm_qla2xxx
 
    scsi_transport_srp/figures

Documentation/scsi/tcm_qla2xxx.rst

@@ -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.
+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
+Enable host 4 to be jammed::
 
-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
+  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