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From: Dima Ruinskiy <dima.ruinskiy@intel.com>
To: intel-wired-lan@lists.osuosl.org
Cc: dima.ruinskiy@intel.com, anthony.l.nguyen@intel.com,
	Christoph Groth <christoph@grothesque.org>,
	ghrafn <ghrafn@proton.me>
Subject: [PATCH iwl-net] e1000e: Add additional systems to disable K1 list
Date: Tue, 13 Oct 2026 00:41:13 +0300	[thread overview]
Message-ID: <20261012214113.69770-1-dima.ruinskiy@intel.com> (raw)

On some Lenovo laptops performance issues were reported with K1 enabled.
Add them to the list of systems where K1 is disabled by default.

Cc: stable@vger.kernel.org
Fixes: 578294b8b60d ("e1000e: Reconfigure PLL clock gate timeout and re-enable K1 on Meteor Lake")
Reported-by: Christoph Groth <christoph@grothesque.org>
Link: https://lore.kernel.org/intel-wired-lan/87v77ial45.fsf@grothesque.org/
Reported-by: ghrafn <ghrafn@proton.me>
Link: https://lore.kernel.org/intel-wired-lan/_kB6DUeC6oOmJnK0FobVVJHADewewO3wzeFw_GrempgMu6s5CUwHpkT16Bwn8tXRq0k_CN4b2NY6API37M6mVciEpH6DKbTqK7f13KMpmgI=@proton.me/
Signed-off-by: Dima Ruinskiy <dima.ruinskiy@intel.com>
---
 drivers/net/ethernet/intel/e1000e/netdev.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 834a5b8883df..35c729368684 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -74,6 +74,20 @@ static const struct dmi_system_id disable_k1_list[] = {
 			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad P14s Gen 5"),
 		},
 	},
+	{
+		.ident = "Lenovo ThinkPad P14s Gen 6",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad P14s Gen 6"),
+		},
+	},
+	{
+		.ident = "Lenovo ThinkPad T14 Gen 6",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T14 Gen 6"),
+		},
+	},
 	{}
 };
 
-- 
2.34.1


             reply	other threads:[~2026-10-12 21:41 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-12 21:41 Dima Ruinskiy [this message]
2026-10-13  5:16 ` [PATCH iwl-net] e1000e: Add additional systems to disable K1 list Paul Menzel
2026-10-13 17:33   ` Mark Pearson

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