[OpenWrt-Devel] [PATCH] oxnas: set irq of usb&sata to cpu1

[Daniel Golle]

On Mon, Nov 23, 2015 at 02:30:34PM +0800, Shonn Lu wrote:
> Signed-off-by: Shonn Lu <countrysideboy at qq.com>
> ---
>  .../linux/oxnas/base-files/init.d/set-irq-affinity | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
>  create mode 100755 target/linux/oxnas/base-files/init.d/set-irq-affinity
> 
> diff --git a/target/linux/oxnas/base-files/init.d/set-irq-affinity b/target/linux/oxnas/base-files/init.d/set-irq-affinity
> new file mode 100755
> index 0000000..8ab066f
> --- /dev/null
> +++ b/target/linux/oxnas/base-files/init.d/set-irq-affinity
> @@ -0,0 +1,22 @@
> +#!/bin/sh /etc/rc.common
> +
> +START=99
> +
> +get_irq() {
> +	local name="$1"
> +	grep -m 1 "$name" /proc/interrupts | cut -d: -f1 | sed 's, *,,'
> +}
> +
> +set_irq_affinity() {
> +	local name="$1"
> +	local val="$2"
> +	local irq="$(get_irq "$name")"
> +	[ -n "$irq" ] || return
> +	echo "$val" > "/proc/irq/$irq/smp_affinity"
> +}
> +
> +start() {
> +	set_irq_affinity ehci_hcd 2
> +	set_irq_affinity xhci_hcd 2
> +	set_irq_affinity sata 2
> +}

I'm sorry to be such a pain, however, now that I have a closer look I
realize that naming is 'ehci_hcd' but 'xhci-hcd' (note: '-' vs. '_')
Maybe

	set_irq_affinity ehci 2
	set_irq_affinity xhci 2

is the safest for now and allows for kernel's driver naming to
eventually get unified in the future...


Cheers


Daniel
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