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From: Raymond Pang <RaymondPang-oc@zhaoxin.com>
To: <bhelgaas@google.com>, <linux-pci@vger.kernel.org>
Cc: <TonyWWang-oc@zhaoxin.com>, <linux-kernel@vger.kernel.org>
Subject: [PATCH 2/3] PCI: Add ACS quirk for Zhaoxin's multi-function devices
Date: Fri, 27 Mar 2020 17:11:47 +0800
Message-ID: <20200327091148.5190-3-RaymondPang-oc@zhaoxin.com> (raw)
In-Reply-To: <20200327091148.5190-1-RaymondPang-oc@zhaoxin.com>

Some Zhaoxin's endpoints are implemented as multi-function devices
without ACS capability. They actually don't support peer-to-peer
transactions. So add ACS quirk to declare DMA isolation.

Signed-off-by: Raymond Pang <RaymondPang-oc@zhaoxin.com>
---
 drivers/pci/quirks.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 3e0ca273f903..3f06496a3d4c 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4767,6 +4767,10 @@ static const struct pci_dev_acs_enabled {
 	{ PCI_VENDOR_ID_BROADCOM, 0xD714, pci_quirk_brcm_acs },
 	/* Amazon Annapurna Labs */
 	{ PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031, pci_quirk_al_acs },
+	/* Zhaoxin multi-function devices */
+	{ PCI_VENDOR_ID_ZHAOXIN, 0x3038, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_ZHAOXIN, 0x3104, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_ZHAOXIN, 0x9083, pci_quirk_mf_endpoint_acs },
 	{ 0 }
 };
 
-- 
2.26.0


  parent reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-27  9:11 [PATCH 0/3] Add ACS quirk for Zhaoxin Raymond Pang
2020-03-27  9:11 ` [PATCH 1/3] PCI: Add Zhaoxin Vendor ID Raymond Pang
2020-03-27  9:11 ` Raymond Pang [this message]
2020-03-27  9:11 ` [PATCH 3/3] PCI: Add ACS quirk for Root/Downstream Ports Raymond Pang
2020-03-28 21:59 ` [PATCH 0/3] Add ACS quirk for Zhaoxin Bjorn Helgaas

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