[PATCH iwl-next v2 0/6] ixgbe: enable EEE for E610 devices

[PATCH iwl-next v2 0/6] ixgbe: enable EEE for E610 devices

[Jedrzej Jagielski]

Align SW structs with latest FW changes related to EEE enablement.
Address compatibility issues caused by the buffer size changes.
Implement ethtool callbacks which can be used to enable/disable EEE, but
generally the feature itself is enabled by default. What's important it
works only for link speeds > 1Gb/s, so even if enabled, it gets down
anytime link conditions aren't met. Still cannot configure LPI timers
and EEE advertised speeds.

Jedrzej Jagielski (6):
  ixgbe: E610: add discovering EEE capability
  ixgbe: E610: use new version of 0x601 ACI command buffer
  ixgbe: E610: update EEE supported speeds
  ixgbe: E610: update ACI command structs with EEE fields
  ixgbe: move EEE config validation out of ixgbe_set_eee()
  ixgbe: E610: add EEE support

 drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c |  73 +++++-
 drivers/net/ethernet/intel/ixgbe/ixgbe_e610.h |   1 +
 .../net/ethernet/intel/ixgbe/ixgbe_ethtool.c  | 244 ++++++++++++++----
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  30 ++-
 drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |   1 +
 .../ethernet/intel/ixgbe/ixgbe_type_e610.h    |  38 ++-
 include/linux/intel/libie/adminq.h            |   1 +
 7 files changed, 325 insertions(+), 63 deletions(-)

---
v2: get rid of eee state refactoring patch; rebase series to the recent
    dev-q branch
---
2.31.1

[PATCH iwl-next v2 1/6] ixgbe: E610: add discovering EEE capability

[Jedrzej Jagielski]

Add detecting and parsing EEE device capability.

Recently EEE functionality support has been introduced to E610 FW.
Currently ixgbe driver has no possibility to detect whether NVM
loaded on given adapter supports EEE.

There's dedicated device capability element reflecting FW support
for given EEE link speed.

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c      | 3 +++
 drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h | 7 +++++++
 include/linux/intel/libie/adminq.h                 | 1 +
 3 files changed, 11 insertions(+)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
index c2f8189a0738..9ae1e3620ee1 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
@@ -628,6 +628,9 @@ static bool ixgbe_parse_e610_caps(struct ixgbe_hw *hw,
 			(phys_id & IXGBE_EXT_TOPO_DEV_IMG_PROG_EN) != 0;
 		break;
 	}
+	case LIBIE_AQC_CAPS_EEE:
+		caps->eee_support = (u8)number;
+		break;
 	default:
 		/* Not one of the recognized common capabilities */
 		return false;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
index cde148eec38d..11dc7fc71b71 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
@@ -892,6 +892,7 @@ struct ixgbe_hw_caps {
 	u8 apm_wol_support;
 	u8 acpi_prog_mthd;
 	u8 proxy_support;
+	u8 eee_support;
 	bool nvm_update_pending_nvm;
 	bool nvm_update_pending_orom;
 	bool nvm_update_pending_netlist;
@@ -927,6 +928,12 @@ struct ixgbe_hw_caps {
 
 #define IXGBE_OROM_CIV_SIGNATURE	"$CIV"
 
+#define IXGBE_EEE_SUPPORT_100BASE_TX	BIT(0)
+#define IXGBE_EEE_SUPPORT_1000BASE_T	BIT(1)
+#define IXGBE_EEE_SUPPORT_10GBASE_T	BIT(2)
+#define IXGBE_EEE_SUPPORT_5GBASE_T	BIT(3)
+#define IXGBE_EEE_SUPPORT_2_5GBASE_T	BIT(4)
+
 struct ixgbe_orom_civd_info {
 	u8 signature[4];	/* Must match ASCII '$CIV' characters */
 	u8 checksum;		/* Simple modulo 256 sum of all structure bytes must equal 0 */
diff --git a/include/linux/intel/libie/adminq.h b/include/linux/intel/libie/adminq.h
index ab13bd777a28..839114d8975a 100644
--- a/include/linux/intel/libie/adminq.h
+++ b/include/linux/intel/libie/adminq.h
@@ -196,6 +196,7 @@ LIBIE_CHECK_STRUCT_LEN(16, libie_aqc_list_caps);
 #define LIBIE_AQC_BIT_ROCEV2_LAG			BIT(0)
 #define LIBIE_AQC_BIT_SRIOV_LAG				BIT(1)
 #define LIBIE_AQC_BIT_SRIOV_AA_LAG			BIT(2)
+#define LIBIE_AQC_CAPS_EEE				0x009B
 #define LIBIE_AQC_CAPS_FLEX10				0x00F1
 #define LIBIE_AQC_CAPS_CEM				0x00F2
 
-- 
2.31.1

RE: [Intel-wired-lan] [PATCH iwl-next v2 1/6] ixgbe: E610: add discovering EEE capability

[Rinitha, SX]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of Jedrzej Jagielski
> Sent: 20 January 2026 19:14
> To: intel-wired-lan@lists.osuosl.org
> Cc: Nguyen, Anthony L <anthony.l.nguyen@intel.com>; netdev@vger.kernel.org; Jagielski, Jedrzej <jedrzej.jagielski@intel.com>; Loktionov, Aleksandr <aleksandr.loktionov@intel.com>
> Subject: [Intel-wired-lan] [PATCH iwl-next v2 1/6] ixgbe: E610: add discovering EEE capability
>
> Add detecting and parsing EEE device capability.
>
> Recently EEE functionality support has been introduced to E610 FW.
> Currently ixgbe driver has no possibility to detect whether NVM loaded on given adapter supports EEE.
>
> There's dedicated device capability element reflecting FW support for given EEE link speed.
>
> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
> drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c      | 3 +++
> drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h | 7 +++++++
> include/linux/intel/libie/adminq.h                 | 1 +
> 3 files changed, 11 insertions(+)
>

Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)

Re: [PATCH iwl-next v2 1/6] ixgbe: E610: add discovering EEE capability

[Jacob Keller]

On 1/20/2026 5:44 AM, Jedrzej Jagielski wrote:
> Add detecting and parsing EEE device capability.
> 
> Recently EEE functionality support has been introduced to E610 FW.
> Currently ixgbe driver has no possibility to detect whether NVM
> loaded on given adapter supports EEE.
> 
> There's dedicated device capability element reflecting FW support
> for given EEE link speed.
> 
> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c      | 3 +++
>  drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h | 7 +++++++
>  include/linux/intel/libie/adminq.h                 | 1 +
>  3 files changed, 11 insertions(+)
> 
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
> index c2f8189a0738..9ae1e3620ee1 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
> @@ -628,6 +628,9 @@ static bool ixgbe_parse_e610_caps(struct ixgbe_hw *hw,
>  			(phys_id & IXGBE_EXT_TOPO_DEV_IMG_PROG_EN) != 0;
>  		break;
>  	}
> +	case LIBIE_AQC_CAPS_EEE:
> +		caps->eee_support = (u8)number;
> +		break;
>  	default:
>  		/* Not one of the recognized common capabilities */
>  		return false;
> diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
> index cde148eec38d..11dc7fc71b71 100644
> --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
> +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
> @@ -892,6 +892,7 @@ struct ixgbe_hw_caps {
>  	u8 apm_wol_support;
>  	u8 acpi_prog_mthd;
>  	u8 proxy_support;
> +	u8 eee_support;
>  	bool nvm_update_pending_nvm;
>  	bool nvm_update_pending_orom;
>  	bool nvm_update_pending_netlist;
> @@ -927,6 +928,12 @@ struct ixgbe_hw_caps {
>  
>  #define IXGBE_OROM_CIV_SIGNATURE	"$CIV"
>  
> +#define IXGBE_EEE_SUPPORT_100BASE_TX	BIT(0)
> +#define IXGBE_EEE_SUPPORT_1000BASE_T	BIT(1)
> +#define IXGBE_EEE_SUPPORT_10GBASE_T	BIT(2)
> +#define IXGBE_EEE_SUPPORT_5GBASE_T	BIT(3)
> +#define IXGBE_EEE_SUPPORT_2_5GBASE_T	BIT(4)
> +

These macros are unused by this series. Sashiko complains about them
existing, since the code appears to actually use IXGBE_ACI_PHY_EEE_*
macros which have different bit positions.

Since they are unused, I am going to drop them in the version I submit
to net-next.

If they ever become needed or useful in the future, then we can always
add them back later.

[PATCH iwl-next v2 2/6] ixgbe: E610: use new version of 0x601 ACI command buffer

[Jedrzej Jagielski]

Since FW version 1.40, buffer size of the 0x601 cmd has been increased
by 2B - from 24 to 26B. Buffer has been extended with new field
which can be used to configure EEE entry delay.

Pre-1.40 FW versions still expect 24B buffer and throws error when
receipts 26B buffer. To keep compatibility, check whether EEE
device capability flag is set and basing on it use appropriate
size of the command buffer.

Additionally place Set PHY Config capabilities defines out of
structs definitions.

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c   | 17 ++++++++++++++++-
 .../net/ethernet/intel/ixgbe/ixgbe_type_e610.h  | 15 +++++++++------
 2 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
index 9ae1e3620ee1..431c932f036b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
@@ -1096,11 +1096,16 @@ int ixgbe_aci_set_phy_cfg(struct ixgbe_hw *hw,
 {
 	struct ixgbe_aci_cmd_set_phy_cfg *cmd;
 	struct libie_aq_desc desc;
+	bool use_buff_eee_field;
+	u16 buf_size;
 	int err;
 
 	if (!cfg)
 		return -EINVAL;
 
+	/* If FW supports EEE, we have to use buffer with EEE field. */
+	use_buff_eee_field = hw->dev_caps.common_cap.eee_support;
+
 	cmd = libie_aq_raw(&desc);
 	/* Ensure that only valid bits of cfg->caps can be turned on. */
 	cfg->caps &= IXGBE_ACI_PHY_ENA_VALID_MASK;
@@ -1109,7 +1114,17 @@ int ixgbe_aci_set_phy_cfg(struct ixgbe_hw *hw,
 	cmd->lport_num = hw->bus.func;
 	desc.flags |= cpu_to_le16(LIBIE_AQ_FLAG_RD);
 
-	err = ixgbe_aci_send_cmd(hw, &desc, cfg, sizeof(*cfg));
+	if (use_buff_eee_field)
+		buf_size = sizeof(*cfg);
+	else
+		/* Buffer w/o eee_entry_delay field is 2B smaller. */
+		buf_size = sizeof(*cfg) - sizeof(u16);
+
+	err = ixgbe_aci_send_cmd(hw, &desc, cfg, buf_size);
+
+	/* 1.40 config format is compatible with pre-1.40, just extends
+	 * it at the end.
+	 */
 	if (!err)
 		hw->phy.curr_user_phy_cfg = *cfg;
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
index 11dc7fc71b71..db62281c9413 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
@@ -382,6 +382,15 @@ struct ixgbe_aci_cmd_set_phy_cfg_data {
 	__le64 phy_type_low; /* Use values from IXGBE_PHY_TYPE_LOW_* */
 	__le64 phy_type_high; /* Use values from IXGBE_PHY_TYPE_HIGH_* */
 	u8 caps;
+	u8 low_power_ctrl_an;
+	__le16 eee_cap; /* Value from ixgbe_aci_get_phy_caps */
+	__le16 eeer_value; /* Use defines from ixgbe_aci_get_phy_caps */
+	u8 link_fec_opt; /* Use defines from ixgbe_aci_get_phy_caps */
+	u8 module_compliance_enforcement;
+	__le16  eee_entry_delay;
+} __packed;
+
+/* Set PHY config capabilities (@caps) defines */
 #define IXGBE_ACI_PHY_ENA_VALID_MASK		0xef
 #define IXGBE_ACI_PHY_ENA_TX_PAUSE_ABILITY	BIT(0)
 #define IXGBE_ACI_PHY_ENA_RX_PAUSE_ABILITY	BIT(1)
@@ -390,12 +399,6 @@ struct ixgbe_aci_cmd_set_phy_cfg_data {
 #define IXGBE_ACI_PHY_ENA_AUTO_LINK_UPDT	BIT(5)
 #define IXGBE_ACI_PHY_ENA_LESM			BIT(6)
 #define IXGBE_ACI_PHY_ENA_AUTO_FEC		BIT(7)
-	u8 low_power_ctrl_an;
-	__le16 eee_cap; /* Value from ixgbe_aci_get_phy_caps */
-	__le16 eeer_value; /* Use defines from ixgbe_aci_get_phy_caps */
-	u8 link_fec_opt; /* Use defines from ixgbe_aci_get_phy_caps */
-	u8 module_compliance_enforcement;
-};
 
 /* Restart AN command data structure (direct 0x0605)
  * Also used for response, with only the lport_num field present.
-- 
2.31.1

RE: [Intel-wired-lan] [PATCH iwl-next v2 2/6] ixgbe: E610: use new version of 0x601 ACI command buffer

[Rinitha, SX]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of Jedrzej Jagielski
> Sent: 20 January 2026 19:15
> To: intel-wired-lan@lists.osuosl.org
> Cc: Nguyen, Anthony L <anthony.l.nguyen@intel.com>; netdev@vger.kernel.org; Jagielski, Jedrzej <jedrzej.jagielski@intel.com>; Loktionov, Aleksandr <aleksandr.loktionov@intel.com>; Kitszel, Przemyslaw <przemyslaw.kitszel@intel.com>
> Subject: [Intel-wired-lan] [PATCH iwl-next v2 2/6] ixgbe: E610: use new version of 0x601 ACI command buffer
>
> Since FW version 1.40, buffer size of the 0x601 cmd has been increased by 2B - from 24 to 26B. Buffer has been extended with new field which can be used to configure EEE entry delay.
>
> Pre-1.40 FW versions still expect 24B buffer and throws error when receipts 26B buffer. To keep compatibility, check whether EEE device capability flag is set and basing on it use appropriate size of the command buffer.
>
> Additionally place Set PHY Config capabilities defines out of structs definitions.
>
> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
> drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c   | 17 ++++++++++++++++-
> .../net/ethernet/intel/ixgbe/ixgbe_type_e610.h  | 15 +++++++++------
> 2 files changed, 25 insertions(+), 7 deletions(-)
>

Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)

[PATCH iwl-next v2 3/6] ixgbe: E610: update EEE supported speeds

[Jedrzej Jagielski]

Despite there was no EEE (Energy Efficient Ethernet) feature
support for E610 adapters, eee_speeds_supported variable was
defined and even initialized with some EEE speeds.

As E610 adapter supports EEE only for 10G, 5G and 2.5G speeds,
update hw.phy.eee_speeds_supported. Remove unsupported speeds -
10M, 100M and 1G.

Add also entry for 5G speed in EEE speeds mapping array used
by ethtool callbacks.

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c    | 11 ++++++++---
 drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c |  1 +
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
index 431c932f036b..289a04183e03 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
@@ -1998,9 +1998,14 @@ int ixgbe_identify_phy_e610(struct ixgbe_hw *hw)
 	/* Set PHY ID */
 	memcpy(&hw->phy.id, pcaps.phy_id_oui, sizeof(u32));
 
-	hw->phy.eee_speeds_supported = IXGBE_LINK_SPEED_10_FULL |
-				       IXGBE_LINK_SPEED_100_FULL |
-				       IXGBE_LINK_SPEED_1GB_FULL;
+	/* E610 supports EEE only for speeds above 1G */
+	if (hw->device_id == IXGBE_DEV_ID_E610_2_5G_T)
+		hw->phy.eee_speeds_supported = IXGBE_LINK_SPEED_2_5GB_FULL;
+	else
+		hw->phy.eee_speeds_supported = IXGBE_LINK_SPEED_2_5GB_FULL |
+					       IXGBE_LINK_SPEED_5GB_FULL |
+					       IXGBE_LINK_SPEED_10GB_FULL;
+
 	hw->phy.eee_speeds_advertised = hw->phy.eee_speeds_supported;
 
 	return 0;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index bb4b53fee234..779e2425e4aa 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -3540,6 +3540,7 @@ static const struct {
 	{ IXGBE_LINK_SPEED_100_FULL, ETHTOOL_LINK_MODE_100baseT_Full_BIT },
 	{ IXGBE_LINK_SPEED_1GB_FULL, ETHTOOL_LINK_MODE_1000baseT_Full_BIT },
 	{ IXGBE_LINK_SPEED_2_5GB_FULL, ETHTOOL_LINK_MODE_2500baseX_Full_BIT },
+	{ IXGBE_LINK_SPEED_5GB_FULL, ETHTOOL_LINK_MODE_5000baseT_Full_BIT },
 	{ IXGBE_LINK_SPEED_10GB_FULL, ETHTOOL_LINK_MODE_10000baseT_Full_BIT },
 };
 
-- 
2.31.1

RE: [Intel-wired-lan] [PATCH iwl-next v2 3/6] ixgbe: E610: update EEE supported speeds

[Rinitha, SX]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of Jedrzej Jagielski
> Sent: 20 January 2026 19:15
> To: intel-wired-lan@lists.osuosl.org
> Cc: Nguyen, Anthony L <anthony.l.nguyen@intel.com>; netdev@vger.kernel.org; Jagielski, Jedrzej <jedrzej.jagielski@intel.com>; Loktionov, Aleksandr <aleksandr.loktionov@intel.com>
> Subject: [Intel-wired-lan] [PATCH iwl-next v2 3/6] ixgbe: E610: update EEE supported speeds
>
> Despite there was no EEE (Energy Efficient Ethernet) feature support for E610 adapters, eee_speeds_supported variable was defined and even initialized with some EEE speeds.
>
> As E610 adapter supports EEE only for 10G, 5G and 2.5G speeds, update hw.phy.eee_speeds_supported. Remove unsupported speeds - 10M, 100M and 1G.
>
> Add also entry for 5G speed in EEE speeds mapping array used by ethtool callbacks.
>
> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
> drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c    | 11 ++++++++---
> drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c |  1 +
> 2 files changed, 9 insertions(+), 3 deletions(-)
>

Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)

[PATCH iwl-next v2 4/6] ixgbe: E610: update ACI command structs with EEE fields

[Jedrzej Jagielski]

There were recent changes in some of the ACI commands,
which have been extended with EEE related fields.
Set PHY Config, Get PHY Caps and Get Link Info have been
affected.

Align SW structs to the recent FW changes.

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c    |  2 ++
 .../net/ethernet/intel/ixgbe/ixgbe_type_e610.h   | 16 +++++++++-------
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
index 289a04183e03..8a3d8000a79c 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
@@ -1076,6 +1076,7 @@ void ixgbe_copy_phy_caps_to_cfg(struct ixgbe_aci_cmd_get_phy_caps_data *caps,
 	cfg->link_fec_opt = caps->link_fec_options;
 	cfg->module_compliance_enforcement =
 		caps->module_compliance_enforcement;
+	cfg->eee_entry_delay = caps->eee_entry_delay;
 }
 
 /**
@@ -1404,6 +1405,7 @@ int ixgbe_aci_get_link_info(struct ixgbe_hw *hw, bool ena_lse,
 	li->topo_media_conflict = link_data.topo_media_conflict;
 	li->pacing = link_data.cfg & (IXGBE_ACI_CFG_PACING_M |
 				      IXGBE_ACI_CFG_PACING_TYPE_M);
+	li->eee_status = link_data.eee_status;
 
 	/* Update fc info. */
 	tx_pause = !!(link_data.an_info & IXGBE_ACI_LINK_PAUSE_TX);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
index db62281c9413..ea305863ba1b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h
@@ -323,10 +323,8 @@ struct ixgbe_aci_cmd_get_phy_caps_data {
 #define IXGBE_ACI_PHY_EEE_EN_100BASE_TX			BIT(0)
 #define IXGBE_ACI_PHY_EEE_EN_1000BASE_T			BIT(1)
 #define IXGBE_ACI_PHY_EEE_EN_10GBASE_T			BIT(2)
-#define IXGBE_ACI_PHY_EEE_EN_1000BASE_KX		BIT(3)
-#define IXGBE_ACI_PHY_EEE_EN_10GBASE_KR			BIT(4)
-#define IXGBE_ACI_PHY_EEE_EN_25GBASE_KR			BIT(5)
-#define IXGBE_ACI_PHY_EEE_EN_10BASE_T			BIT(11)
+#define IXGBE_ACI_PHY_EEE_EN_5GBASE_T			BIT(11)
+#define IXGBE_ACI_PHY_EEE_EN_2_5GBASE_T			BIT(12)
 	__le16 eeer_value;
 	u8 phy_id_oui[4]; /* PHY/Module ID connected on the port */
 	u8 phy_fw_ver[8];
@@ -356,7 +354,9 @@ struct ixgbe_aci_cmd_get_phy_caps_data {
 #define IXGBE_ACI_MOD_TYPE_BYTE2_SFP_PLUS		0xA0
 #define IXGBE_ACI_MOD_TYPE_BYTE2_QSFP_PLUS		0x86
 	u8 qualified_module_count;
-	u8 rsvd2[7];	/* Bytes 47:41 reserved */
+	u8 rsvd2;
+	__le16 eee_entry_delay;
+	u8 rsvd3[4];
 #define IXGBE_ACI_QUAL_MOD_COUNT_MAX			16
 	struct {
 		u8 v_oui[3];
@@ -512,8 +512,9 @@ struct ixgbe_aci_cmd_get_link_status_data {
 #define IXGBE_ACI_LINK_SPEED_200GB		BIT(11)
 #define IXGBE_ACI_LINK_SPEED_UNKNOWN		BIT(15)
 	__le16 reserved3;
-	u8 ext_fec_status;
-#define IXGBE_ACI_LINK_RS_272_FEC_EN	BIT(0) /* RS 272 FEC enabled */
+	u8 eee_status;
+#define IXGBE_ACI_LINK_EEE_ENABLED		BIT(2)
+#define IXGBE_ACI_LINK_EEE_ACTIVE		BIT(3)
 	u8 reserved4;
 	__le64 phy_type_low; /* Use values from ICE_PHY_TYPE_LOW_* */
 	__le64 phy_type_high; /* Use values from ICE_PHY_TYPE_HIGH_* */
@@ -816,6 +817,7 @@ struct ixgbe_link_status {
 	 * of ixgbe_aci_get_phy_caps structure
 	 */
 	u8 module_type[IXGBE_ACI_MODULE_TYPE_TOTAL_BYTE];
+	u8 eee_status;
 };
 
 /* Common HW capabilities for SW use */
-- 
2.31.1

RE: [Intel-wired-lan] [PATCH iwl-next v2 4/6] ixgbe: E610: update ACI command structs with EEE fields

[Rinitha, SX]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of Jedrzej Jagielski
> Sent: 20 January 2026 19:15
> To: intel-wired-lan@lists.osuosl.org
> Cc: Nguyen, Anthony L <anthony.l.nguyen@intel.com>; netdev@vger.kernel.org; Jagielski, Jedrzej <jedrzej.jagielski@intel.com>; Loktionov, Aleksandr <aleksandr.loktionov@intel.com>
> Subject: [Intel-wired-lan] [PATCH iwl-next v2 4/6] ixgbe: E610: update ACI command structs with EEE fields
>
> There were recent changes in some of the ACI commands, which have been extended with EEE related fields.
> Set PHY Config, Get PHY Caps and Get Link Info have been affected.
>
> Align SW structs to the recent FW changes.
>
> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
> drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c    |  2 ++
> .../net/ethernet/intel/ixgbe/ixgbe_type_e610.h   | 16 +++++++++-------
> 2 files changed, 11 insertions(+), 7 deletions(-)
>

Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)

[PATCH iwl-next v2 5/6] ixgbe: move EEE config validation out of ixgbe_set_eee()

[Jedrzej Jagielski]

To make this part of the code mode reusable move all
EEE input checks out of ixgbe_set_eee().

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
---
v2: add comment on returning EALREADY
---
 .../net/ethernet/intel/ixgbe/ixgbe_ethtool.c  | 98 +++++++++++--------
 1 file changed, 57 insertions(+), 41 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index 779e2425e4aa..b5b9b9335d52 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -3556,6 +3556,47 @@ static const struct {
 	{ FW_PHY_ACT_UD_2_10G_KR_EEE, ETHTOOL_LINK_MODE_10000baseKR_Full_BIT},
 };
 
+static int ixgbe_validate_keee(struct net_device *netdev,
+			       struct ethtool_keee *keee_requested)
+{
+	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
+	struct ethtool_keee keee_stored = {};
+	int err;
+
+	if (!(adapter->flags2 & IXGBE_FLAG2_EEE_CAPABLE))
+		return -EOPNOTSUPP;
+
+	err = netdev->ethtool_ops->get_eee(netdev, &keee_stored);
+	if (err)
+		return err;
+
+	if (keee_stored.tx_lpi_enabled != keee_requested->tx_lpi_enabled) {
+		e_err(drv, "Setting EEE tx-lpi is not supported\n");
+		return -EINVAL;
+	}
+
+	if (keee_stored.tx_lpi_timer != keee_requested->tx_lpi_timer) {
+		e_err(drv,
+		      "Setting EEE Tx LPI timer is not supported\n");
+		return -EINVAL;
+	}
+
+	if (!linkmode_equal(keee_stored.advertised,
+			    keee_requested->advertised)) {
+		e_err(drv,
+		      "Setting EEE advertised speeds is not supported\n");
+		return -EINVAL;
+	}
+
+	/* -EALREADY here is for internal use only, must be converted into
+	 * early bail out with 0 by caller
+	 */
+	if (keee_stored.eee_enabled == keee_requested->eee_enabled)
+		return -EALREADY;
+
+	return 0;
+}
+
 static int
 ixgbe_get_eee_fw(struct ixgbe_adapter *adapter, struct ethtool_keee *edata)
 {
@@ -3614,53 +3655,28 @@ static int ixgbe_set_eee(struct net_device *netdev, struct ethtool_keee *edata)
 {
 	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
 	struct ixgbe_hw *hw = &adapter->hw;
-	struct ethtool_keee eee_data;
 	int ret_val;
 
-	if (!(adapter->flags2 & IXGBE_FLAG2_EEE_CAPABLE))
-		return -EOPNOTSUPP;
-
-	memset(&eee_data, 0, sizeof(struct ethtool_keee));
-
-	ret_val = ixgbe_get_eee(netdev, &eee_data);
-	if (ret_val)
+	ret_val = ixgbe_validate_keee(netdev, edata);
+	if (ret_val == -EALREADY)
+		return 0;
+	else if (ret_val)
 		return ret_val;
 
-	if (eee_data.eee_enabled && !edata->eee_enabled) {
-		if (eee_data.tx_lpi_enabled != edata->tx_lpi_enabled) {
-			e_err(drv, "Setting EEE tx-lpi is not supported\n");
-			return -EINVAL;
-		}
-
-		if (eee_data.tx_lpi_timer != edata->tx_lpi_timer) {
-			e_err(drv,
-			      "Setting EEE Tx LPI timer is not supported\n");
-			return -EINVAL;
-		}
-
-		if (!linkmode_equal(eee_data.advertised, edata->advertised)) {
-			e_err(drv,
-			      "Setting EEE advertised speeds is not supported\n");
-			return -EINVAL;
-		}
+	if (edata->eee_enabled) {
+		adapter->flags2 |= IXGBE_FLAG2_EEE_ENABLED;
+		hw->phy.eee_speeds_advertised =
+					   hw->phy.eee_speeds_supported;
+	} else {
+		adapter->flags2 &= ~IXGBE_FLAG2_EEE_ENABLED;
+		hw->phy.eee_speeds_advertised = 0;
 	}
 
-	if (eee_data.eee_enabled != edata->eee_enabled) {
-		if (edata->eee_enabled) {
-			adapter->flags2 |= IXGBE_FLAG2_EEE_ENABLED;
-			hw->phy.eee_speeds_advertised =
-						   hw->phy.eee_speeds_supported;
-		} else {
-			adapter->flags2 &= ~IXGBE_FLAG2_EEE_ENABLED;
-			hw->phy.eee_speeds_advertised = 0;
-		}
-
-		/* reset link */
-		if (netif_running(netdev))
-			ixgbe_reinit_locked(adapter);
-		else
-			ixgbe_reset(adapter);
-	}
+	/* reset link */
+	if (netif_running(netdev))
+		ixgbe_reinit_locked(adapter);
+	else
+		ixgbe_reset(adapter);
 
 	return 0;
 }
-- 
2.31.1

RE: [Intel-wired-lan] [PATCH iwl-next v2 5/6] ixgbe: move EEE config validation out of ixgbe_set_eee()

[Rinitha, SX]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of Jedrzej Jagielski
> Sent: 20 January 2026 19:15
> To: intel-wired-lan@lists.osuosl.org
> Cc: Nguyen, Anthony L <anthony.l.nguyen@intel.com>; netdev@vger.kernel.org; Jagielski, Jedrzej <jedrzej.jagielski@intel.com>; Loktionov, Aleksandr <aleksandr.loktionov@intel.com>
> Subject: [Intel-wired-lan] [PATCH iwl-next v2 5/6] ixgbe: move EEE config validation out of ixgbe_set_eee()
>
> To make this part of the code mode reusable move all EEE input checks out of ixgbe_set_eee().
>
> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
> v2: add comment on returning EALREADY
> ---
> .../net/ethernet/intel/ixgbe/ixgbe_ethtool.c  | 98 +++++++++++--------
> 1 file changed, 57 insertions(+), 41 deletions(-)
>

Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)

[PATCH iwl-next v2 6/6] ixgbe: E610: add EEE support

[Jedrzej Jagielski]

Add E610 specific implementation of .get_eee() and .set_eee() ethtool
callbacks.

Introduce ixgbe_setup_eee_e610() which is used to set EEE config
on E610 device via ixgbe_aci_set_phy_cfg() (0x0601 ACI command).
Assign it to dedicated mac operation.

E610 devices support EEE feature specifically for 2.5, 5 and 10G link
speeds. When user try to set EEE for unsupported speeds log it.

Setting timer and setting EEE advertised speeds are not yet supported.

EEE shall be enabled by default for E610 devices.

Add EEE statuis logging during link watchdog run.

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
---
v2: get rid of setting unsupported speeds from ixgbe_setup_eee_e610();
    remove 10Mb EEE case; remove EEE control (Andrew)
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c |  40 +++++
 drivers/net/ethernet/intel/ixgbe/ixgbe_e610.h |   1 +
 .../net/ethernet/intel/ixgbe/ixgbe_ethtool.c  | 145 +++++++++++++++++-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  30 +++-
 drivers/net/ethernet/intel/ixgbe/ixgbe_type.h |   1 +
 5 files changed, 212 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
index 8a3d8000a79c..3b941906b502 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c
@@ -2013,6 +2013,45 @@ int ixgbe_identify_phy_e610(struct ixgbe_hw *hw)
 	return 0;
 }
 
+/**
+ * ixgbe_setup_eee_e610 - Enable/disable EEE support
+ * @hw: pointer to the HW structure
+ * @enable_eee: boolean flag to enable EEE
+ *
+ * Enable/disable EEE based on @enable_eee.
+ *
+ * Return: the exit code of the operation.
+ */
+int ixgbe_setup_eee_e610(struct ixgbe_hw *hw, bool enable_eee)
+{
+	struct ixgbe_aci_cmd_get_phy_caps_data phy_caps = {};
+	struct ixgbe_aci_cmd_set_phy_cfg_data phy_cfg = {};
+	u16 eee_cap = 0;
+	int err;
+
+	err = ixgbe_aci_get_phy_caps(hw, false,
+		IXGBE_ACI_REPORT_ACTIVE_CFG, &phy_caps);
+	if (err)
+		return err;
+
+	ixgbe_copy_phy_caps_to_cfg(&phy_caps, &phy_cfg);
+	phy_cfg.caps |= (IXGBE_ACI_PHY_ENA_LINK |
+			IXGBE_ACI_PHY_ENA_AUTO_LINK_UPDT);
+
+	if (enable_eee) {
+		if (hw->phy.eee_speeds_advertised & IXGBE_LINK_SPEED_2_5GB_FULL)
+			eee_cap |= IXGBE_ACI_PHY_EEE_EN_2_5GBASE_T;
+		if (hw->phy.eee_speeds_advertised & IXGBE_LINK_SPEED_5GB_FULL)
+			eee_cap |= IXGBE_ACI_PHY_EEE_EN_5GBASE_T;
+		if (hw->phy.eee_speeds_advertised & IXGBE_LINK_SPEED_10GB_FULL)
+			eee_cap |= IXGBE_ACI_PHY_EEE_EN_10GBASE_T;
+	}
+
+	phy_cfg.eee_cap = cpu_to_le16(eee_cap);
+
+	return ixgbe_aci_set_phy_cfg(hw, &phy_cfg);
+}
+
 /**
  * ixgbe_identify_module_e610 - Identify SFP module type
  * @hw: pointer to hardware structure
@@ -4026,6 +4065,7 @@ static const struct ixgbe_mac_operations mac_ops_e610 = {
 	.fw_rollback_mode		= ixgbe_fw_rollback_mode_e610,
 	.get_nvm_ver			= ixgbe_get_active_nvm_ver,
 	.get_link_capabilities		= ixgbe_get_link_capabilities_e610,
+	.setup_eee			= ixgbe_setup_eee_e610,
 	.get_bus_info			= ixgbe_get_bus_info_generic,
 	.acquire_swfw_sync		= ixgbe_acquire_swfw_sync_X540,
 	.release_swfw_sync		= ixgbe_release_swfw_sync_X540,
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.h
index 11916b979d28..2cb76a3d30ae 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_e610.h
@@ -55,6 +55,7 @@ int ixgbe_init_phy_ops_e610(struct ixgbe_hw *hw);
 int ixgbe_identify_phy_e610(struct ixgbe_hw *hw);
 int ixgbe_identify_module_e610(struct ixgbe_hw *hw);
 int ixgbe_setup_phy_link_e610(struct ixgbe_hw *hw);
+int ixgbe_setup_eee_e610(struct ixgbe_hw *hw, bool enable_eee);
 int ixgbe_set_phy_power_e610(struct ixgbe_hw *hw, bool on);
 int ixgbe_enter_lplu_e610(struct ixgbe_hw *hw);
 int ixgbe_init_eeprom_params_e610(struct ixgbe_hw *hw);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index b5b9b9335d52..020b97556ef7 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -12,6 +12,7 @@
 #include <linux/ethtool.h>
 #include <linux/vmalloc.h>
 #include <linux/highmem.h>
+#include <linux/string_choices.h>
 #include <linux/uaccess.h>
 
 #include "ixgbe.h"
@@ -3539,7 +3540,7 @@ static const struct {
 	{ IXGBE_LINK_SPEED_10_FULL, ETHTOOL_LINK_MODE_10baseT_Full_BIT },
 	{ IXGBE_LINK_SPEED_100_FULL, ETHTOOL_LINK_MODE_100baseT_Full_BIT },
 	{ IXGBE_LINK_SPEED_1GB_FULL, ETHTOOL_LINK_MODE_1000baseT_Full_BIT },
-	{ IXGBE_LINK_SPEED_2_5GB_FULL, ETHTOOL_LINK_MODE_2500baseX_Full_BIT },
+	{ IXGBE_LINK_SPEED_2_5GB_FULL, ETHTOOL_LINK_MODE_2500baseT_Full_BIT },
 	{ IXGBE_LINK_SPEED_5GB_FULL, ETHTOOL_LINK_MODE_5000baseT_Full_BIT },
 	{ IXGBE_LINK_SPEED_10GB_FULL, ETHTOOL_LINK_MODE_10000baseT_Full_BIT },
 };
@@ -3556,6 +3557,17 @@ static const struct {
 	{ FW_PHY_ACT_UD_2_10G_KR_EEE, ETHTOOL_LINK_MODE_10000baseKR_Full_BIT},
 };
 
+static const struct {
+	u16 eee_cap_bit;
+	u32 link_mode;
+} ixgbe_eee_cap_map[] = {
+	{ IXGBE_ACI_PHY_EEE_EN_100BASE_TX, ETHTOOL_LINK_MODE_100baseT_Full_BIT },
+	{ IXGBE_ACI_PHY_EEE_EN_1000BASE_T, ETHTOOL_LINK_MODE_1000baseT_Full_BIT },
+	{ IXGBE_ACI_PHY_EEE_EN_10GBASE_T, ETHTOOL_LINK_MODE_10000baseT_Full_BIT },
+	{ IXGBE_ACI_PHY_EEE_EN_5GBASE_T, ETHTOOL_LINK_MODE_5000baseT_Full_BIT },
+	{ IXGBE_ACI_PHY_EEE_EN_2_5GBASE_T, ETHTOOL_LINK_MODE_2500baseT_Full_BIT },
+};
+
 static int ixgbe_validate_keee(struct net_device *netdev,
 			       struct ethtool_keee *keee_requested)
 {
@@ -3597,6 +3609,133 @@ static int ixgbe_validate_keee(struct net_device *netdev,
 	return 0;
 }
 
+/**
+ * ixgbe_is_eee_link_speed_supported_e610 - Check if EEE can be enabled
+ * @adapter: pointer to the adapter struct
+ *
+ * Check whether current link configuration is capable of enabling EEE feature.
+ *
+ * E610 specific function - for other adapters supporting EEE there might be
+ * no such limitation.
+ *
+ * Return: true if EEE can be enabled, false otherwise.
+ */
+static bool
+ixgbe_is_eee_link_speed_supported_e610(struct ixgbe_adapter *adapter)
+{
+	switch (adapter->link_speed) {
+	case IXGBE_LINK_SPEED_10GB_FULL:
+	case IXGBE_LINK_SPEED_2_5GB_FULL:
+	case IXGBE_LINK_SPEED_5GB_FULL:
+		return true;
+	case IXGBE_LINK_SPEED_100_FULL:
+	case IXGBE_LINK_SPEED_1GB_FULL:
+		e_dev_info("Energy Efficient Ethernet (EEE) feature is not supported on link speeds equal to or below 1Gbps. EEE is supported on speeds above 1Gbps.\n");
+		fallthrough;
+	default:
+		return false;
+	}
+}
+
+static int ixgbe_get_eee_e610(struct net_device *netdev,
+			      struct ethtool_keee *kedata)
+{
+	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
+	struct ixgbe_aci_cmd_get_phy_caps_data pcaps;
+	struct ixgbe_hw *hw = &adapter->hw;
+	struct ixgbe_link_status link;
+	u16 eee_cap;
+	int err;
+
+	linkmode_zero(kedata->lp_advertised);
+	linkmode_zero(kedata->supported);
+	linkmode_zero(kedata->advertised);
+
+	err = ixgbe_aci_get_link_info(hw, true, &link);
+	if (err)
+		return err;
+
+	err = ixgbe_aci_get_phy_caps(hw, false, IXGBE_ACI_REPORT_ACTIVE_CFG,
+				     &pcaps);
+	if (err)
+		return err;
+
+	kedata->eee_active =  link.eee_status & IXGBE_ACI_LINK_EEE_ACTIVE;
+	kedata->eee_enabled = link.eee_status & IXGBE_ACI_LINK_EEE_ENABLED;
+
+	/* for E610 devices EEE enablement implies TX LPI enablement */
+	kedata->tx_lpi_enabled = kedata->eee_enabled;
+
+	if (kedata->eee_enabled)
+		kedata->tx_lpi_timer = le16_to_cpu(pcaps.eee_entry_delay);
+
+	eee_cap = le16_to_cpu(pcaps.eee_cap);
+
+	for (int i = 0; i < ARRAY_SIZE(ixgbe_eee_cap_map); i++) {
+		if (eee_cap & ixgbe_eee_cap_map[i].eee_cap_bit)
+			linkmode_set_bit(ixgbe_eee_cap_map[i].link_mode,
+					 kedata->lp_advertised);
+	}
+
+	for (int i = 0; i < ARRAY_SIZE(ixgbe_ls_map); i++) {
+		if (hw->phy.eee_speeds_supported &
+		    ixgbe_ls_map[i].mac_speed)
+			linkmode_set_bit(ixgbe_ls_map[i].link_mode,
+					 kedata->supported);
+
+		if (hw->phy.eee_speeds_advertised &
+		    ixgbe_ls_map[i].mac_speed)
+			linkmode_set_bit(ixgbe_ls_map[i].link_mode,
+					 kedata->advertised);
+	}
+
+	return 0;
+}
+
+static int ixgbe_set_eee_e610(struct net_device *netdev,
+			      struct ethtool_keee *kedata)
+{
+	struct ixgbe_adapter *adapter = ixgbe_from_netdev(netdev);
+	struct ixgbe_hw *hw = &adapter->hw;
+	int err;
+
+	err = ixgbe_validate_keee(netdev, kedata);
+
+	if (err == -EALREADY) {
+		return 0;
+	} else if (err) {
+		if (err == -EOPNOTSUPP)
+			e_dev_info("Energy Efficient Ethernet (EEE) feature is currently not supported on this device, please update the device NVM to the latest and try again");
+		return err;
+	}
+
+	if (!(ixgbe_is_eee_link_speed_supported_e610(adapter)) &&
+	    kedata->eee_enabled)
+		return -EOPNOTSUPP;
+
+	hw->phy.eee_speeds_advertised = kedata->eee_enabled ?
+					hw->phy.eee_speeds_supported : 0;
+
+	err = hw->mac.ops.setup_eee(hw, kedata->eee_enabled);
+	if (err) {
+		e_dev_err("Setting EEE %s failed.\n",
+			  str_on_off(kedata->eee_enabled));
+		return err;
+	}
+
+	if (kedata->eee_enabled)
+		adapter->flags2 |= IXGBE_FLAG2_EEE_ENABLED;
+	else
+		adapter->flags2 &= ~IXGBE_FLAG2_EEE_ENABLED;
+
+	if (netif_running(netdev))
+		ixgbe_reinit_locked(adapter);
+	else
+		ixgbe_reset(adapter);
+
+	return 0;
+}
+
 static int
 ixgbe_get_eee_fw(struct ixgbe_adapter *adapter, struct ethtool_keee *edata)
 {
@@ -3823,8 +3962,8 @@ static const struct ethtool_ops ixgbe_ethtool_ops_e610 = {
 	.set_rxfh		= ixgbe_set_rxfh,
 	.get_rxfh_fields	= ixgbe_get_rxfh_fields,
 	.set_rxfh_fields	= ixgbe_set_rxfh_fields,
-	.get_eee		= ixgbe_get_eee,
-	.set_eee		= ixgbe_set_eee,
+	.get_eee		= ixgbe_get_eee_e610,
+	.set_eee		= ixgbe_set_eee_e610,
 	.get_channels		= ixgbe_get_channels,
 	.set_channels		= ixgbe_set_channels,
 	.get_priv_flags		= ixgbe_get_priv_flags,
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index c58051e4350b..b2bd34b53bf2 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -6748,6 +6748,7 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
 
 /**
  * ixgbe_set_eee_capable - helper function to determine EEE support on X550
+ * and E610
  * @adapter: board private structure
  */
 static void ixgbe_set_eee_capable(struct ixgbe_adapter *adapter)
@@ -6764,6 +6765,20 @@ static void ixgbe_set_eee_capable(struct ixgbe_adapter *adapter)
 			break;
 		adapter->flags2 |= IXGBE_FLAG2_EEE_ENABLED;
 		break;
+	case IXGBE_DEV_ID_E610_BACKPLANE:
+	case IXGBE_DEV_ID_E610_SFP:
+	case IXGBE_DEV_ID_E610_10G_T:
+	case IXGBE_DEV_ID_E610_2_5G_T:
+		if (hw->dev_caps.common_cap.eee_support &&
+		    hw->phy.eee_speeds_supported) {
+			adapter->flags2 |= IXGBE_FLAG2_EEE_CAPABLE;
+			/* For E610 adapters EEE should be enabled by default
+			 * if the feature is supported by FW.
+			 */
+			adapter->flags2 |= IXGBE_FLAG2_EEE_ENABLED;
+			break;
+		}
+		fallthrough;
 	default:
 		adapter->flags2 &= ~IXGBE_FLAG2_EEE_CAPABLE;
 		adapter->flags2 &= ~IXGBE_FLAG2_EEE_ENABLED;
@@ -8074,6 +8089,7 @@ static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter *adapter)
 	struct net_device *netdev = adapter->netdev;
 	struct ixgbe_hw *hw = &adapter->hw;
 	u32 link_speed = adapter->link_speed;
+	struct ethtool_keee keee = {};
 	const char *speed_str;
 	bool flow_rx, flow_tx;
 
@@ -8114,6 +8130,8 @@ static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter *adapter)
 	if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state))
 		ixgbe_ptp_start_cyclecounter(adapter);
 
+	netdev->ethtool_ops->get_eee(netdev, &keee);
+
 	switch (link_speed) {
 	case IXGBE_LINK_SPEED_10GB_FULL:
 		speed_str = "10 Gbps";
@@ -8137,10 +8155,11 @@ static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter *adapter)
 		speed_str = "unknown speed";
 		break;
 	}
-	e_info(drv, "NIC Link is Up %s, Flow Control: %s\n", speed_str,
+	e_info(drv, "NIC Link is Up %s, Flow Control: %s, EEE: %s\n", speed_str,
 	       ((flow_rx && flow_tx) ? "RX/TX" :
 	       (flow_rx ? "RX" :
-	       (flow_tx ? "TX" : "None"))));
+	       (flow_tx ? "TX" : "None"))),
+	       str_on_off(keee.eee_enabled));
 
 	netif_carrier_on(netdev);
 	ixgbe_check_vf_rate_limit(adapter);
@@ -11995,6 +12014,13 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (err)
 		goto err_netdev;
 
+	if (hw->mac.type == ixgbe_mac_e610 &&
+	    (adapter->flags2 & IXGBE_FLAG2_EEE_CAPABLE)) {
+		bool eee_enable = adapter->flags2 & IXGBE_FLAG2_EEE_ENABLED;
+
+		hw->mac.ops.setup_eee(hw, eee_enable);
+	}
+
 	ixgbe_devlink_init_regions(adapter);
 	devl_register(adapter->devlink);
 	devl_unlock(adapter->devlink);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 94e00ab96692..4b8c439df2e2 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -3524,6 +3524,7 @@ struct ixgbe_mac_operations {
 	int (*get_link_capabilities)(struct ixgbe_hw *, ixgbe_link_speed *,
 				     bool *);
 	void (*set_rate_select_speed)(struct ixgbe_hw *, ixgbe_link_speed);
+	int (*setup_eee)(struct ixgbe_hw *hw, bool enable_eee);
 
 	/* Packet Buffer Manipulation */
 	void (*set_rxpba)(struct ixgbe_hw *, int, u32, int);
-- 
2.31.1

RE: [Intel-wired-lan] [PATCH iwl-next v2 6/6] ixgbe: E610: add EEE support

[Rinitha, SX]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf Of Jedrzej Jagielski
> Sent: 20 January 2026 19:15
> To: intel-wired-lan@lists.osuosl.org
> Cc: Nguyen, Anthony L <anthony.l.nguyen@intel.com>; netdev@vger.kernel.org; Jagielski, Jedrzej <jedrzej.jagielski@intel.com>; Loktionov, Aleksandr <aleksandr.loktionov@intel.com>
> Subject: [Intel-wired-lan] [PATCH iwl-next v2 6/6] ixgbe: E610: add EEE support
>
> Add E610 specific implementation of .get_eee() and .set_eee() ethtool callbacks.
>
> Introduce ixgbe_setup_eee_e610() which is used to set EEE config on E610 device via ixgbe_aci_set_phy_cfg() (0x0601 ACI command).
> Assign it to dedicated mac operation.
>
> E610 devices support EEE feature specifically for 2.5, 5 and 10G link speeds. When user try to set EEE for unsupported speeds log it.
>
> Setting timer and setting EEE advertised speeds are not yet supported.
>
> EEE shall be enabled by default for E610 devices.
>
> Add EEE statuis logging during link watchdog run.
>
> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
> Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
> ---
> v2: get rid of setting unsupported speeds from ixgbe_setup_eee_e610();
>    remove 10Mb EEE case; remove EEE control (Andrew)
> ---
>

Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)