Re: [patch v6 0/7] genirq/affinity: Overhaul the multiple interrupt sets support
From: Marc Zyngier
Date: Mon Feb 18 2019 - 03:43:35 EST
On Sat, 16 Feb 2019 18:13:06 +0100
Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> This is the final update to the series with a few corner cases fixes
> vs. V5 which can be found here:
>
> https://lkml.kernel.org/r/20190214204755.819014197@xxxxxxxxxxxxx
>
> The series applies against:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git master
>
> and is also available from:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.irq
>
> Changes vs. V5:
>
> - Change the invocation for the driver callback so it is invoked even
> when there are no interrupts left to spread out. That ensures that the
> driver can adjust to the situation (in case of NVME a single interrupt)
>
> - Make sure the callback is invoked in the legacy irq fallback case so
> the driver is not in a stale state from a failed MSI[X} allocation
> attempt.
>
> - Fix the adjustment logic in the NVME driver as pointed out by Ming and
> Marc, plus another corner case I found during testing.
>
> - Simplify the unmanaged set support
>
> Thanks,
>
> tglx
>
> 8<-------------
> drivers/nvme/host/pci.c | 117 +++++++++++++---------------------------
> drivers/pci/msi.c | 39 +++++--------
> drivers/scsi/be2iscsi/be_main.c | 2
> include/linux/interrupt.h | 35 ++++++++---
> include/linux/pci.h | 4 -
> kernel/irq/affinity.c | 116 ++++++++++++++++++++++++---------------
> 6 files changed, 153 insertions(+), 160 deletions(-)
>
>
For the series (with or without patch 7), feel free to add my
Acked-by: Marc Zyngier <marc.zyngier@xxxxxxx>
Thanks,
M.
--
Without deviation from the norm, progress is not possible.