diff options
Diffstat (limited to 'Documentation/scsi')
| -rw-r--r-- | Documentation/scsi/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/scsi/tcm_qla2xxx.rst (renamed from Documentation/scsi/tcm_qla2xxx.txt) | 26 |
2 files changed, 21 insertions, 6 deletions
diff --git a/Documentation/scsi/index.rst b/Documentation/scsi/index.rst index 238dd0ac36a6..df005cb94f6b 100644 --- a/Documentation/scsi/index.rst +++ b/Documentation/scsi/index.rst @@ -43,5 +43,6 @@ Linux SCSI Subsystem st sym53c500_cs sym53c8xx_2 + tcm_qla2xxx scsi_transport_srp/figures diff --git a/Documentation/scsi/tcm_qla2xxx.txt b/Documentation/scsi/tcm_qla2xxx.rst index c3a670a25e2b..91bc1fcd369e 100644 --- a/Documentation/scsi/tcm_qla2xxx.txt +++ b/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:: + + 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 + echo 0 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:27:8f:ae/tpgt_1/attrib/jam_host |