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Subject[PATCH 2/3] e1000e: Add Dell's Comet Lake systems into s0ix heuristics
Date
Dell's Comet Lake Latitude and Precision systems containing i219LM are
properly configured and should use the s0ix flows.

Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
---
drivers/net/ethernet/intel/Kconfig | 1 +
drivers/net/ethernet/intel/e1000e/param.c | 80 ++++++++++++++++++++++-
2 files changed, 80 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig
index 5aa86318ed3e..280af47d74d2 100644
--- a/drivers/net/ethernet/intel/Kconfig
+++ b/drivers/net/ethernet/intel/Kconfig
@@ -58,6 +58,7 @@ config E1000
config E1000E
tristate "Intel(R) PRO/1000 PCI-Express Gigabit Ethernet support"
depends on PCI && (!SPARC32 || BROKEN)
+ depends on DMI
select CRC32
imply PTP_1588_CLOCK
help
diff --git a/drivers/net/ethernet/intel/e1000e/param.c b/drivers/net/ethernet/intel/e1000e/param.c
index e66b222c824b..58e6718c4f75 100644
--- a/drivers/net/ethernet/intel/e1000e/param.c
+++ b/drivers/net/ethernet/intel/e1000e/param.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 1999 - 2018 Intel Corporation. */

+#include <linux/dmi.h>
#include <linux/netdevice.h>
#include <linux/module.h>
#include <linux/pci.h>
@@ -201,6 +202,80 @@ static const struct e1000e_me_supported me_supported[] = {
{0}
};

+static const struct dmi_system_id s0ix_supported_systems[] = {
+ {
+ /* Dell Latitude 5310 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_SKU, "099F"),
+ },
+ },
+ {
+ /* Dell Latitude 5410 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_SKU, "09A0"),
+ },
+ },
+ {
+ /* Dell Latitude 5410 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_SKU, "09C9"),
+ },
+ },
+ {
+ /* Dell Latitude 5510 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_SKU, "09A1"),
+ },
+ },
+ {
+ /* Dell Precision 3550 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_SKU, "09A2"),
+ },
+ },
+ {
+ /* Dell Latitude 5411 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_SKU, "09C0"),
+ },
+ },
+ {
+ /* Dell Latitude 5511 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_SKU, "09C1"),
+ },
+ },
+ {
+ /* Dell Precision 3551 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_SKU, "09C2"),
+ },
+ },
+ {
+ /* Dell Precision 7550 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_SKU, "09C3"),
+ },
+ },
+ {
+ /* Dell Precision 7750 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_SKU, "09C4"),
+ },
+ },
+ { }
+};
+
static bool e1000e_check_me(u16 device_id)
{
struct e1000e_me_supported *id;
@@ -599,8 +674,11 @@ void e1000e_check_options(struct e1000_adapter *adapter)
}

if (enabled == S0IX_HEURISTICS) {
+ /* check for allowlist of systems */
+ if (dmi_check_system(s0ix_supported_systems))
+ enabled = S0IX_FORCE_ON;
/* default to off for ME configurations */
- if (e1000e_check_me(hw->adapter->pdev->device))
+ else if (e1000e_check_me(hw->adapter->pdev->device))
enabled = S0IX_FORCE_OFF;
}

--
2.25.1
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