When many domains per card are available, then the results of the SCDMD
CHSC call may not fit into the output area, and a partial result is
returned. The further results must be retrieved with another CHSC call.
Fix the code to pass the correct next-domain to the subsequent CHSC call
of a partial response. Otherwise the same set of domains 1 to n are
retrieved again, resulting in an infinite loop, because this will always
produce a partial result.
Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Dependent on kernel config option CHSC_SCH the device node /dev/chsc may
exist per default or not. In case the kernel is built with CHSC_SCH=M,
then the device driver is built as separate kernel module, and must
therefore be loaded using modprobe chsc_sch to make device node /dev/chsc
available.
Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
The zcryptstats tool displays usage statistics of IBM Crypto Express
adapters. It obtains cryptographic performance measurement data
periodically and displays the data for each cryptographic device for
each interval. A cryptographic device can be either a card device or
a queue device (APQN).
Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Ingo Franzki