linux-kernel - [PATCH AUTOSEL 6.4 18/40] thunderbolt: Limit Intel Barlow Ridge USB3 bandwidth

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Message-Id: <20230724013140.2327815-18-sashal@kernel.org>
Date:   Sun, 23 Jul 2023 21:31:18 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Gil Fine <gil.fine@...ux.intel.com>,
        Sasha Levin <sashal@...nel.org>, andreas.noever@...il.com,
        michael.jamet@...el.com, yehezkel.bernat@...el.com
Subject: [PATCH AUTOSEL 6.4 18/40] thunderbolt: Limit Intel Barlow Ridge USB3 bandwidth

From: Mika Westerberg <mika.westerberg@...ux.intel.com>

[ Upstream commit f2bfa944080dcbb8eb56259dfd2c07204cbee17e ]

Intel Barlow Ridge discrete USB4 host router has the same limitation as
the previous generations so make sure the USB3 bandwidth limitation
quirk is applied to Barlow Ridge too.

Signed-off-by: Gil Fine <gil.fine@...ux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/thunderbolt/nhi.h    | 2 ++
 drivers/thunderbolt/quirks.c | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/thunderbolt/nhi.h b/drivers/thunderbolt/nhi.h
index c15a0c46c9cff..0f029ce758825 100644
--- a/drivers/thunderbolt/nhi.h
+++ b/drivers/thunderbolt/nhi.h
@@ -77,6 +77,8 @@ extern const struct tb_nhi_ops icl_nhi_ops;
 #define PCI_DEVICE_ID_INTEL_ADL_NHI1			0x466d
 #define PCI_DEVICE_ID_INTEL_BARLOW_RIDGE_HOST_80G_NHI	0x5781
 #define PCI_DEVICE_ID_INTEL_BARLOW_RIDGE_HOST_40G_NHI	0x5784
+#define PCI_DEVICE_ID_INTEL_BARLOW_RIDGE_HUB_80G_BRIDGE 0x5786
+#define PCI_DEVICE_ID_INTEL_BARLOW_RIDGE_HUB_40G_BRIDGE 0x57a4
 #define PCI_DEVICE_ID_INTEL_MTL_M_NHI0			0x7eb2
 #define PCI_DEVICE_ID_INTEL_MTL_P_NHI0			0x7ec2
 #define PCI_DEVICE_ID_INTEL_MTL_P_NHI1			0x7ec3
diff --git a/drivers/thunderbolt/quirks.c b/drivers/thunderbolt/quirks.c
index 1157b8869bcca..8c2ee431fcde8 100644
--- a/drivers/thunderbolt/quirks.c
+++ b/drivers/thunderbolt/quirks.c
@@ -74,6 +74,14 @@ static const struct tb_quirk tb_quirks[] = {
 		  quirk_usb3_maximum_bandwidth },
 	{ 0x8087, PCI_DEVICE_ID_INTEL_MTL_P_NHI1, 0x0000, 0x0000,
 		  quirk_usb3_maximum_bandwidth },
+	{ 0x8087, PCI_DEVICE_ID_INTEL_BARLOW_RIDGE_HOST_80G_NHI, 0x0000, 0x0000,
+		  quirk_usb3_maximum_bandwidth },
+	{ 0x8087, PCI_DEVICE_ID_INTEL_BARLOW_RIDGE_HOST_40G_NHI, 0x0000, 0x0000,
+		  quirk_usb3_maximum_bandwidth },
+	{ 0x8087, PCI_DEVICE_ID_INTEL_BARLOW_RIDGE_HUB_80G_BRIDGE, 0x0000, 0x0000,
+		  quirk_usb3_maximum_bandwidth },
+	{ 0x8087, PCI_DEVICE_ID_INTEL_BARLOW_RIDGE_HUB_40G_BRIDGE, 0x0000, 0x0000,
+		  quirk_usb3_maximum_bandwidth },
 	/*
 	 * CLx is not supported on AMD USB4 Yellow Carp and Pink Sardine platforms.
 	 */
-- 
2.39.2