Re: [PATCH v5 0/2] add MSI support for PCIe port services and DPC IRQ support

From: Bjorn Helgaas
Date: Fri Jun 16 2017 - 20:37:35 EST


On Tue, May 23, 2017 at 03:23:57PM +0100, Gabriele Paoloni wrote:
> From: gabriele paoloni <gabriele.paoloni@xxxxxxxxxx>
>
> This patchset:
> 1) adds support for MSI interrupt vectors to be used for Roor Port services
> 2) adds support for DPC Root Port service interrupt
>
> The patchset has been tested on Hisilicon Hip08 Chipset
>
> Changes from v4:
> - removed meaningless comment
>
> Changes from v3:
> - removed 2 extra lines at the bottom of comments
>
> Changes from v2:
> - Fixed comment mismatch for function pcie_port_enable_irq_vec
> - removed redundant commet on pci_irq_vector()
>
> Changes from v1:
> According to comments from Christoph Hellwig in
> https://www.spinics.net/lists/kernel/msg2508842.html
> and
> https://www.spinics.net/lists/kernel/msg2508850.html
>
> - reduced the calls of pci_alloc_irq_vectors by ORing PCI_IRQ_MSIX and
> PCI_IRQ_MSI
> - used a unique macro for the max number of MSI/MSIx interrupt vectors
> - reworked pcie_init_service_irqs() to call pci_alloc_irq_vectors() only
> for legacy IRQ
>
>
> Gabriele Paoloni (1):
> PCI/portdrv: add support for different MSI interrupts for PCIe port
> services
>
> gabriele paoloni (1):
> PCI/portdrv: allocate MSI/MSIx vector for DPC RP service
>
> drivers/pci/pcie/portdrv.h | 8 ++++--
> drivers/pci/pcie/portdrv_core.c | 63 +++++++++++++++++++++++++++++------------
> 2 files changed, 50 insertions(+), 21 deletions(-)

Applied to pci/portdrv for v4.13, thanks!

I tweaked the PME/hotplug no-MSI logic in pcie_init_service_irqs()
because I thought it was getting hard to read with the negations and
conjunctions. Please double-check to make sure I didn't break it.

https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/log/?h=pci/portdrv

I also capitalized your name consistently, Gabriele :)