diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0396-PCI-brcmstb-Advertise-MSI-X-support.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0396-PCI-brcmstb-Advertise-MSI-X-support.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0396-PCI-brcmstb-Advertise-MSI-X-support.patch b/target/linux/bcm27xx/patches-5.10/950-0396-PCI-brcmstb-Advertise-MSI-X-support.patch new file mode 100644 index 0000000000..a7145c0c4e --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0396-PCI-brcmstb-Advertise-MSI-X-support.patch @@ -0,0 +1,27 @@ +From 9cd85b8b4c18c913ac1d63eb2b6d13e3230516a3 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.com> +Date: Thu, 3 Dec 2020 13:44:42 +0000 +Subject: [PATCH] PCI: brcmstb: Advertise MSI-X support + +Although the BRCMSTB PCIe interface doesn't technically support the +MSI-X spec, in practise it seems to work provided no more than 32 +MSI-Xs are required. Add the required flag to the driver to allow +experimentation with devices that demand MSI-X support. + +Signed-off-by: Phil Elwell <phil@raspberrypi.com> +--- + drivers/pci/controller/pcie-brcmstb.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/drivers/pci/controller/pcie-brcmstb.c ++++ b/drivers/pci/controller/pcie-brcmstb.c +@@ -463,7 +463,8 @@ static struct irq_chip brcm_msi_irq_chip + + static struct msi_domain_info brcm_msi_domain_info = { + /* Multi MSI is supported by the controller, but not by this driver */ +- .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS), ++ .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS | ++ MSI_FLAG_PCI_MSIX), + .chip = &brcm_msi_irq_chip, + }; + |