2022-04-22 15:00:47 +00:00
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From 70855652348e5c83056e18a0a934f33fad77594c Mon Sep 17 00:00:00 2001
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2021-11-24 17:32:01 +00:00
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Thu, 3 Dec 2020 13:44:42 +0000
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2022-04-22 15:00:47 +00:00
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Subject: [PATCH 326/828] PCI: brcmstb: Advertise MSI-X support
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2021-11-24 17:32:01 +00:00
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Although the BRCMSTB PCIe interface doesn't technically support the
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MSI-X spec, in practise it seems to work provided no more than 32
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MSI-Xs are required. Add the required flag to the driver to allow
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experimentation with devices that demand MSI-X support.
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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drivers/pci/controller/pcie-brcmstb.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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--- a/drivers/pci/controller/pcie-brcmstb.c
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+++ b/drivers/pci/controller/pcie-brcmstb.c
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2022-04-22 15:00:47 +00:00
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@@ -471,7 +471,8 @@ static struct irq_chip brcm_msi_irq_chip
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2021-11-24 17:32:01 +00:00
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static struct msi_domain_info brcm_msi_domain_info = {
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/* Multi MSI is supported by the controller, but not by this driver */
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- .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS),
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+ .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
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+ MSI_FLAG_PCI_MSIX),
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.chip = &brcm_msi_irq_chip,
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};
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