Commit | Line | Data |
---|---|---|
54a5e73f LO |
1 | tcm_qla2xxx jam_host attribute |
2 | ------------------------------ | |
3 | There is now a new module endpoint atribute called jam_host | |
4 | attribute: jam_host: boolean=0/1 | |
5 | This attribute and accompanying code is only included if the | |
6 | Kconfig parameter TCM_QLA2XXX_DEBUG is set to Y | |
7 | By default this jammer code and functionality is disabled | |
8 | ||
9 | Use this attribute to control the discarding of SCSI commands to a | |
10 | selected host. | |
11 | This may be useful for testing error handling and simulating slow drain | |
12 | and other fabric issues. | |
13 | ||
14 | Setting a boolean of 1 for the jam_host attribute for a particular host | |
15 | will discard the commands for that host. | |
16 | Reset back to 0 to stop the jamming. | |
17 | ||
18 | Enable host 4 to be jammed | |
19 | echo 1 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:27:8f:ae/tpgt_1/attrib/jam_host | |
20 | ||
21 | Disable jamming on host 4 | |
22 | echo 0 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:27:8f:ae/tpgt_1/attrib/jam_host |