1tcm_qla2xxx jam_host attribute
2------------------------------
3There is now a new module endpoint atribute called jam_host
4attribute: jam_host: boolean=0/1
5This attribute and accompanying code is only included if the
6Kconfig parameter TCM_QLA2XXX_DEBUG is set to Y
7By default this jammer code and functionality is disabled
8
9Use this attribute to control the discarding of SCSI commands to a
10selected host.
11This may be useful for testing error handling and simulating slow drain
12and other fabric issues.
13
14Setting a boolean of 1 for the jam_host attribute for a particular host
15 will discard the commands for that host.
16Reset back to 0 to stop the jamming.
17
18Enable host 4 to be jammed
19echo 1 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:27:8f:ae/tpgt_1/attrib/jam_host
20
21Disable jamming on host 4
22echo 0 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:27:8f:ae/tpgt_1/attrib/jam_host
23