kernel: bump 5.15 to 5.15.39

[openwrt/staging/chunkeey.git] / target / linux / generic / pending-5.15 / 850-0012-PCI-aardvark-Enable-MSI-X-support.patch

diff --git a/target/linux/generic/pending-5.15/850-0012-PCI-aardvark-Enable-MSI-X-support.patch b/target/linux/generic/pending-5.15/850-0012-PCI-aardvark-Enable-MSI-X-support.patch
deleted file mode 100644 (file)
index eeca514..0000000
--- a/target/linux/generic/pending-5.15/850-0012-PCI-aardvark-Enable-MSI-X-support.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From 735a4ac9782b96fbe1543c578aa8334364f21abd Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
-Date: Fri, 2 Apr 2021 14:05:24 +0200
-Subject: [PATCH] PCI: aardvark: Enable MSI-X support
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-According to PCI 3.0 specification, sending both MSI and MSI-X interrupts
-is done by DWORD memory write operation to doorbell message address. The
-write operation for MSI has zero upper 16 bits and the MSI interrupt number
-in the lower 16 bits, while the write operation for MSI-X contains a 32-bit
-value from MSI-X table.
-
-Since the driver only uses interrupt numbers from range 0..31, the upper
-16 bits of the DWORD memory write operation to doorbell message address
-are zero even for MSI-X interrupts. Thus we can enable MSI-X interrupts.
-
-Testing proves that kernel can correctly receive MSI-X interrupts from PCIe
-cards which supports both MSI and MSI-X interrupts.
-
-Signed-off-by: Pali Rohár <pali@kernel.org>
-Signed-off-by: Marek Behún <kabel@kernel.org>
----
- drivers/pci/controller/pci-aardvark.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/drivers/pci/controller/pci-aardvark.c
-+++ b/drivers/pci/controller/pci-aardvark.c
-@@ -1339,7 +1339,7 @@ static struct irq_chip advk_msi_irq_chip
- 
- static struct msi_domain_info advk_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   = &advk_msi_irq_chip,
- };
-