diff options
| author | Don Brace <don.brace@microchip.com> | 2023-09-27 10:45:46 -0500 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2023-09-30 00:54:30 +0200 |
| commit | 1f7f3cd7060a11237b12cc6af2d0cb6f47631e35 (patch) | |
| tree | a53f2cf1a46c999d4f0aa92e9d690a447dfff198 /man4 | |
| parent | e66a881b0ca33c32dd42065e3ce4409c77db39d3 (diff) | |
smartpqi.4: Add module parameter disable_managed_interrupts
Add in a description for module parameter disable_managed_interrupts.
This module parameter allows users to disable automatic irq affinity
setting by turning off the PCI_IRQ_AFFINITY flag when requesting
interrupts.
When the flag PCI_IRQ_AFFINITY is set, users cannot change the interrupt
affinity through /proc/irq/<irq#>/*affinity*
Some customers would like to change interrupt affinity based on their
requirements.
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Diffstat (limited to 'man4')
| -rw-r--r-- | man4/smartpqi.4 | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/man4/smartpqi.4 b/man4/smartpqi.4 index 428d79a19..d095a197c 100644 --- a/man4/smartpqi.4 +++ b/man4/smartpqi.4 @@ -16,6 +16,7 @@ smartpqi \- Microchip Smart Storage SCSI driver .RB [ lockup_action= { none | reboot | panic }] .RB [ expose_ld_first= { 0 | 1 }] .RB [ hide_vsep= { 0 | 1 }] +.RB [ disable_managed_interrupts= { 0 | 1 }] .YS .SH DESCRIPTION .B smartpqi @@ -100,6 +101,12 @@ The default value is 0 (physical devices exposed first). .BR hide_vsep= { 0 | 1 } This option disables exposure of the virtual SEP to the OS. The default value is 0 (virtual SEP is exposed). +.TP +.BR disable_managed_interrupts= { 0 | 1 } +Disables driver utilization of Linux kernel managed interrupts for controllers. +The managed interrupts feature automatically distributes interrupts +to all available CPUs and assigns SMP affinity. +The default value is 0 (managed interrupts enabled). .SH FILES .SS Device nodes Logical drives are accessed via the SCSI disk driver |