From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
To: linux-pci@vger.kernel.org, helgaas@kernel.org
Cc: linux-wireless@vger.kernel.org,
Miri Korenblit <miriam.rachel.korenblit@intel.com>,
Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Subject: [PATCH] PCI: Disable NoSnoop and Relaxed ordering for Intel wireless BE200
Date: Sun, 21 Jun 2026 09:54:51 +0300 [thread overview]
Message-ID: <20260621065451.21650-1-emmanuel.grumbach@intel.com> (raw)
The Intel wireless BE200 device fails to copy the TLP Attributes from a
Request to the Completion.
Since there is no caching involved the device anyway, disable the
NoSnoop and Relaxed ordering on the root port.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
drivers/pci/quirks.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index c0242f3e9f06..e9f070d07b2c 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4674,6 +4674,13 @@ static void quirk_chelsio_T5_disable_root_port_attributes(struct pci_dev *pdev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CHELSIO, PCI_ANY_ID,
quirk_chelsio_T5_disable_root_port_attributes);
+/*
+ * The Intel wireless BE200 fails to copy TLP Attributes from a Request to the
+ * Completion it generates.
+ */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x272b,
+ quirk_disable_root_port_attributes);
+
/*
* pci_acs_ctrl_enabled - compare desired ACS controls with those provided
* by a device
--
2.54.0
next reply other threads:[~2026-06-21 6:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-21 6:54 Emmanuel Grumbach [this message]
2026-06-21 8:10 ` [PATCH] PCI: Disable NoSnoop and Relaxed ordering for Intel wireless BE200 Lukas Wunner
2026-06-21 8:28 ` Grumbach, Emmanuel
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