lkml.org 
[lkml]   [2013]   [Mar]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectRe: [RFC 1/2] PCI: Introduce new MSI chip infrastructure
On Fri, Mar 22, 2013 at 08:51:46AM +0000, Thierry Reding wrote:
> index ce93a34..ea4a5be 100644
> --- a/include/linux/msi.h
> +++ b/include/linux/msi.h
> @@ -58,5 +58,15 @@ extern int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
> extern void arch_teardown_msi_irqs(struct pci_dev *dev);
> extern int arch_msi_check_device(struct pci_dev* dev, int nvec, int type);
>
> +struct msi_chip {
> + struct module *owner;
> + struct device *dev;
> +
> + int (*setup_irq)(struct msi_chip *chip, struct pci_dev *dev,
> + struct msi_desc *desc);
> + void (*teardown_irq)(struct msi_chip *chip, unsigned int irq);
> + int (*check_device)(struct msi_chip *chip, struct pci_dev *dev,
> + int nvec, int type);
> +};

Is there a need to add setup_irqs and teardown_irqs functions here? This will
allow your MSI chips to support multiple MSIs per requesting device.

What about restore_msi_irqs? Does this fit in here too?

Andrew Murray

\
 
 \ /
  Last update: 2013-03-22 11:21    [W:0.081 / U:0.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site