From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Pavan Chebbi <pavan.chebbi@broadcom.com>,
Michael Chan <michael.chan@broadcom.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Sasha Levin <sashal@kernel.org>,
linux-pci@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 01/21] PCI: Add ACS quirk for Broadcom BCM5750x NICs
Date: Sun, 14 Aug 2022 11:35:11 -0400 [thread overview]
Message-ID: <20220814153531.2379705-1-sashal@kernel.org> (raw)
From: Pavan Chebbi <pavan.chebbi@broadcom.com>
[ Upstream commit afd306a65cedb9589564bdb23a0c368abc4215fd ]
The Broadcom BCM5750x NICs may be multi-function devices. They do not
advertise ACS capability. Peer-to-peer transactions are not possible
between the individual functions, so it is safe to treat them as fully
isolated.
Add an ACS quirk for these devices so the functions can be in independent
IOMMU groups and attached individually to userspace applications using
VFIO.
Link: https://lore.kernel.org/r/1654796507-28610-1-git-send-email-michael.chan@broadcom.com
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pci/quirks.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 2a4bc8df8563..8b98b7f3eb24 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4943,6 +4943,9 @@ static const struct pci_dev_acs_enabled {
{ PCI_VENDOR_ID_AMPERE, 0xE00C, pci_quirk_xgene_acs },
/* Broadcom multi-function device */
{ PCI_VENDOR_ID_BROADCOM, 0x16D7, pci_quirk_mf_endpoint_acs },
+ { PCI_VENDOR_ID_BROADCOM, 0x1750, pci_quirk_mf_endpoint_acs },
+ { PCI_VENDOR_ID_BROADCOM, 0x1751, pci_quirk_mf_endpoint_acs },
+ { PCI_VENDOR_ID_BROADCOM, 0x1752, pci_quirk_mf_endpoint_acs },
{ PCI_VENDOR_ID_BROADCOM, 0xD714, pci_quirk_brcm_acs },
/* Amazon Annapurna Labs */
{ PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031, pci_quirk_al_acs },
--
2.35.1
next reply other threads:[~2022-08-14 15:57 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-14 15:35 Sasha Levin [this message]
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 02/21] usb: cdns3 fix use-after-free at workaround 2 Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 03/21] usb: gadget: uvc: call uvc uvcg_warn on completed status instead of uvcg_info Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 04/21] irqchip/tegra: Fix overflow implicit truncation warnings Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 05/21] drm/meson: " Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 06/21] usb: host: ohci-ppc-of: Fix refcount leak bug Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 07/21] usb: renesas: " Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 08/21] vboxguest: Do not use devm for irq Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 09/21] clk: qcom: ipq8074: dont disable gcc_sleep_clk_src Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 10/21] scsi: lpfc: Prevent buffer overflow crashes in debugfs with malformed user input Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 11/21] gadgetfs: ep_io - wait until IRQ finishes Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 12/21] cxl: Fix a memory leak in an error handling path Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 13/21] PCI/ACPI: Guard ARM64-specific mcfg_quirks Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 14/21] um: add "noreboot" command line option for PANIC_TIMEOUT=-1 setups Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 15/21] selftests/kprobe: Do not test for GRP/ without event failures Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 16/21] dmaengine: sprd: Cleanup in .remove() after pm_runtime_get_sync() failed Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 17/21] ARM: 9203/1: kconfig: fix MODULE_PLTS for KASAN with KASAN_VMALLOC Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 18/21] nvmet-tcp: fix lockdep complaint on nvmet_tcp_wq flush during queue teardown Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 19/21] drivers:md:fix a potential use-after-free bug Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 20/21] ext4: avoid remove directory when directory is corrupted Sasha Levin
2022-08-14 15:35 ` [PATCH AUTOSEL 5.4 21/21] ext4: avoid resizing to a partial cluster size Sasha Levin
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