openwrt/target/linux/bcm27xx/patches-6.6/950-0269-PCI-brcmstb-Advertise-MSI-X-support.patch

From 78e29270963288d80a173bcf93d80c3f079f0afd Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Thu, 3 Dec 2020 13:44:42 +0000
Subject: [PATCH 0269/1085] 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 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -442,7 +442,7 @@ static struct irq_chip brcm_msi_irq_chip
 
 static struct msi_domain_info brcm_msi_domain_info = {
 	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		   MSI_FLAG_MULTI_PCI_MSI),
+		   MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX),
 	.chip	= &brcm_msi_irq_chip,
 };