> From: Intel-wired-lan <intel-wired-lan-boun...@osuosl.org> On Behalf Of
> Mario Limonciello
> Sent: Sunday, September 27, 2020 9:40 PM
> To: Kirsher, Jeffrey T <jeffrey.t.kirs...@intel.com>; intel-wired-
> l...@lists.osuosl.org
> Cc: perry.y...@dell.com; yijun.s...@dell.com; linux-kernel@vger.kernel.org;
> Mario Limonciello <mario.limoncie...@dell.com>
> Subject: [Intel-wired-lan] [PATCH 2/3] e1000e: Add Dell's Comet Lake systems
> into s0ix heuristics
>
> 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.limoncie...@dell.com>
> ---
> drivers/net/ethernet/intel/Kconfig | 1 +
> drivers/net/ethernet/intel/e1000e/param.c | 80 ++++++++++++++++++++++-
> 2 files changed, 80 insertions(+), 1 deletion(-)
Is there anyone who touched this hardware with this patch willing to provide a
Tested-by:?
I am happy to do regression / sanity checks against other e1000e based systems,
but do not have access to these devices.
>
> 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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