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36 lines
1018 B
36 lines
1018 B
.. SPDX-License-Identifier: GPL-2.0 |
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tcm_qla2xxx Driver Notes |
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tcm_qla2xxx jam_host attribute |
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------------------------------ |
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There is now a new module endpoint atribute called jam_host |
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attribute:: |
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jam_host: boolean=0/1 |
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This attribute and accompanying code is only included if the |
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Kconfig parameter TCM_QLA2XXX_DEBUG is set to Y |
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By default this jammer code and functionality is disabled |
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Use this attribute to control the discarding of SCSI commands to a |
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selected host. |
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This may be useful for testing error handling and simulating slow drain |
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and other fabric issues. |
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Setting a boolean of 1 for the jam_host attribute for a particular host |
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will discard the commands for that host. |
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Reset back to 0 to stop the jamming. |
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Enable host 4 to be jammed:: |
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echo 1 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:27:8f:ae/tpgt_1/attrib/jam_host |
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Disable jamming on host 4:: |
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echo 0 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:27:8f:ae/tpgt_1/attrib/jam_host
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