blob: 7268c2771e8fb98f1dd6c78624fb324c669905ad (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
.. 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
|
