On Tue, Jul 28, 2015 at 10:07 PM, Ley Foon Tan [off-list ref] wrote:

On Wed, Jul 29, 2015 at 1:00 AM, Dinh Nguyen [off-list ref] wrote:

quoted

On Tue, Jul 28, 2015 at 5:45 AM, Ley Foon Tan [off-list ref] wrote:

quoted

This patch adds Altera PCIe MSI driver. This soft IP supports configurable
number of vectors, which is a dts parameter.

@@ -154,4 +154,11 @@ config PCIE_ALTERA
          Say Y here if you want to enable PCIe controller support for Altera
          SoCFPGA family of SoCs.

+config PCIE_ALTERA_MSI
+       bool "Altera PCIe MSI feature"
+       depends on PCI_MSI && PCIE_ALTERA
+       help
+         Say Y here if you want PCIe MSI support for the Altera SocFPGA SoC.
+         This MSI driver supports Altera MSI to GIC controller IP.
+

Couldn't this driver get combined with the pcie-altera driver?

This MSI IP is a soft IP and it is optional to PCI system. So, we have
individual driver for it and user can disable it.

So why can't you use CONFIG_PCI_MSI in the pcie-altera driver? I see
that most, if not
all of the other drivers are combined with MSI.

Dinh