RE: [tip:irq/core] genirq/matrix: Improve target CPU selection for managed interrupts.

2018-11-07 Thread Michael Kelley
From: Thomas Gleixner Sent: Wednesday, November 7, 2018 12:23 PM > > There is another interesting property of managed interrupts vs. CPU > hotplug. When the last CPU in the affinity mask goes offline, then the core > code shuts down the interrupt and the device driver and related layers >

RE: [tip:irq/core] genirq/matrix: Improve target CPU selection for managed interrupts.

2018-11-07 Thread Michael Kelley
From: Thomas Gleixner Sent: Wednesday, November 7, 2018 12:23 PM > > There is another interesting property of managed interrupts vs. CPU > hotplug. When the last CPU in the affinity mask goes offline, then the core > code shuts down the interrupt and the device driver and related layers >

RE: [tip:irq/core] genirq/matrix: Improve target CPU selection for managed interrupts.

2018-11-07 Thread Thomas Gleixner
Michael, On Wed, 7 Nov 2018, Michael Kelley wrote: > > 2) Managed interrupts: > > > > Managed interrupts guarantee vector reservation when the MSI/MSI-X > > functionality of a device is enabled, which is achieved by reserving > > vectors in the bitmaps of the possible target CPUs.

RE: [tip:irq/core] genirq/matrix: Improve target CPU selection for managed interrupts.

2018-11-07 Thread Thomas Gleixner
Michael, On Wed, 7 Nov 2018, Michael Kelley wrote: > > 2) Managed interrupts: > > > > Managed interrupts guarantee vector reservation when the MSI/MSI-X > > functionality of a device is enabled, which is achieved by reserving > > vectors in the bitmaps of the possible target CPUs.

RE: [tip:irq/core] genirq/matrix: Improve target CPU selection for managed interrupts.

2018-11-07 Thread Michael Kelley
From: tip tree robot Sent: Tuesday, November 6, 2018 2:28 PM > > Committer: Thomas Gleixner > CommitDate: Tue, 6 Nov 2018 23:20:13 +0100 > > 2) Managed interrupts: > > Managed interrupts guarantee vector reservation when the MSI/MSI-X > functionality of a device is enabled, which is

RE: [tip:irq/core] genirq/matrix: Improve target CPU selection for managed interrupts.

2018-11-07 Thread Michael Kelley
From: tip tree robot Sent: Tuesday, November 6, 2018 2:28 PM > > Committer: Thomas Gleixner > CommitDate: Tue, 6 Nov 2018 23:20:13 +0100 > > 2) Managed interrupts: > > Managed interrupts guarantee vector reservation when the MSI/MSI-X > functionality of a device is enabled, which is

[tip:irq/core] genirq/matrix: Improve target CPU selection for managed interrupts.

2018-11-06 Thread tip-bot for Long Li
Commit-ID: e8da8794a7fd9eef1ec9a07f0d4897c68581c72b Gitweb: https://git.kernel.org/tip/e8da8794a7fd9eef1ec9a07f0d4897c68581c72b Author: Long Li AuthorDate: Tue, 6 Nov 2018 04:00:00 + Committer: Thomas Gleixner CommitDate: Tue, 6 Nov 2018 23:20:13 +0100 genirq/matrix: Improve

[tip:irq/core] genirq/matrix: Improve target CPU selection for managed interrupts.

2018-11-06 Thread tip-bot for Long Li
Commit-ID: e8da8794a7fd9eef1ec9a07f0d4897c68581c72b Gitweb: https://git.kernel.org/tip/e8da8794a7fd9eef1ec9a07f0d4897c68581c72b Author: Long Li AuthorDate: Tue, 6 Nov 2018 04:00:00 + Committer: Thomas Gleixner CommitDate: Tue, 6 Nov 2018 23:20:13 +0100 genirq/matrix: Improve