scsi: qla2xxx: Add support for ZIO6 interrupt threshold
authorQuinn Tran <quinn.tran@cavium.com>
Tue, 4 Sep 2018 21:19:14 +0000 (14:19 -0700)
committerMartin K. Petersen <martin.petersen@oracle.com>
Wed, 12 Sep 2018 00:28:08 +0000 (20:28 -0400)
commit8b4673ba3a1b992b757a32667d2d3adae80e11fd
tree4ed44894051dbf45b28977d3b4c3f9fec5096ec8
parent6b0431d6fa20bd1b600a1e6df76bf7425fe178b5
scsi: qla2xxx: Add support for ZIO6 interrupt threshold

Add sysfs support to control zio6 interrupt threshold. Using this sysfs hook
user can set when to generate interrupts. This value will be used to tell
firmware to generate interrupt at a certain interval.  If the number of
exchanges/commands fall below defined setting, then the interrupt will be
generated immediately by the firmware.

By default ZIO6 will coalesce interrupts to a specified interval
regardless of low traffic or high traffic.

[mkp: fixed several typos]

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/qla2xxx/qla_attr.c
drivers/scsi/qla2xxx/qla_def.h
drivers/scsi/qla2xxx/qla_init.c
drivers/scsi/qla2xxx/qla_mbx.c
drivers/scsi/qla2xxx/qla_os.c
drivers/scsi/qla2xxx/qla_target.c