From e445375882883f69018aa669b67cbb37ec873406 Mon Sep 17 00:00:00 2001
From: Yifeng Li <tomli@tomli.me>
Date: Thu, 2 Dec 2021 06:35:21 +0000
Subject: [PATCH] PCI: Add function 1 DMA alias quirk for Marvell 88SE9125 SATA
controller
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Git-commit: e445375882883f69018aa669b67cbb37ec873406
References: git-fixes
Patch-mainline: v5.17-rc1
Like other SATA controller chips in the Marvell 88SE91xx series, the
Marvell 88SE9125 has the same DMA requester ID hardware bug that prevents
it from working under IOMMU. Add it to the list of devices that need the
quirk.
Without this patch, device initialization fails with DMA errors:
ata8: softreset failed (1st FIS failed)
DMAR: DRHD: handling fault status reg 2
DMAR: [DMA Write NO_PASID] Request device [03:00.1] fault addr 0xfffc0000 [fault reason 0x02] Present bit in context entry is clear
DMAR: DRHD: handling fault status reg 2
DMAR: [DMA Read NO_PASID] Request device [03:00.1] fault addr 0xfffc0000 [fault reason 0x02] Present bit in context entry is clear
After applying the patch, the controller can be successfully initialized:
ata8: SATA link up 1.5 Gbps (SStatus 113 SControl 330)
ata8.00: ATAPI: PIONEER BD-RW BDR-207M, 1.21, max UDMA/100
ata8.00: configured for UDMA/100
scsi 7:0:0:0: CD-ROM PIONEER BD-RW BDR-207M 1.21 PQ: 0 ANSI: 5
Link: https://lore.kernel.org/r/YahpKVR+McJVDdkD@work
Reported-by: Sam Bingner <sam@bingner.com>
Tested-by: Sam Bingner <sam@bingner.com>
Tested-by: Yifeng Li <tomli@tomli.me>
Signed-off-by: Yifeng Li <tomli@tomli.me>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
Cc: stable@vger.kernel.org
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
drivers/pci/quirks.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 003950c738d2..20a932690738 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4103,6 +4103,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9120,
quirk_dma_func1_alias);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9123,
quirk_dma_func1_alias);
+/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c136 */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9125,
+ quirk_dma_func1_alias);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9128,
quirk_dma_func1_alias);
/* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c14 */
--
2.34.1