linux-kernel - [PATCH] PCI: Add function 1 DMA alias quirk for Marvell 9170 SATA controller

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Message-Id: <20190405152047.153417-1-andre.przywara@arm.com>
Date:   Fri,  5 Apr 2019 16:20:47 +0100
From:   Andre Przywara <andre.przywara@....com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] PCI: Add function 1 DMA alias quirk for Marvell 9170 SATA controller

There is a Marvell 88SE9170 PCIe SATA controller I found on a board
here. Some quick testing with the ARM SMMU enabled reveals that it
suffers from the same requester ID mixup problems as the other Marvell
chips listed already.

Add the PCI vendor/device ID to the list of chips which need the
workaround.

Signed-off-by: Andre Przywara <andre.przywara@....com>
---
 drivers/pci/quirks.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index a59ad09ce911..a077f67fe1da 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -3877,6 +3877,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9128,
 /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c14 */
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9130,
 			 quirk_dma_func1_alias);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9170,
+			 quirk_dma_func1_alias);
 /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c47 + c57 */
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9172,
 			 quirk_dma_func1_alias);
-- 
2.17.1