A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 19:21:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

tcm_qla2xxx Add SCSI command jammer/discard capability

Browse source 
This patch introduces support for TCM_QLA2XXX_DEBUG and
associated tcm_qla2xxx_tpg->tpg_attrib.jam_host checking
used to test dropped packets to FC host environments.

Tested by: Laurence Oberman <[email protected]>
Signed-off-by: Laurence Oberman <[email protected]>
Acked-by: Himanshu Madhani <[email protected]>
Signed-off-by: Nicholas Bellinger <[email protected]>
This commit is contained in:
Laurence Oberman 2016-05-10 01:23:17 -07:00 • committed by Nicholas Bellinger
commit 54a5e73f4d
4 changed files with 52 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

22
Documentation/scsi/tcm_qla2xxx.txt Normal file
View file

@ -0,0 +1,22 @@
tcm_qla2xxx jam_host attribute
------------------------------
There is now a new module endpoint atribute 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