netdev - [PATCH iwl-next v1 1/7] ixgbe: E610: add discovering EEE capability

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Message-Id: <20260112140108.1173835-2-jedrzej.jagielski@intel.com>
Date: Mon, 12 Jan 2026 15:01:02 +0100
From: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: anthony.l.nguyen@...el.com,
	netdev@...r.kernel.org,
	Jedrzej Jagielski <jedrzej.jagielski@...el.com>,
	Aleksandr Loktionov <aleksandr.loktionov@...el.com>
Subject: [PATCH iwl-next v1 1/7] 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@...el.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_e610.c      | 3 +++
 drivers/net/ethernet/intel/ixgbe/ixgbe_type_e610.h | 7 +++++++
 include/linux/net/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 b202639b92c7..98982d3d87c7 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 75383b2a1fe9..767d04a3f106 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/net/intel/libie/adminq.h b/include/linux/net/intel/libie/adminq.h
index 1dd5d5924aee..4359cbbe6eb7 100644
--- a/include/linux/net/intel/libie/adminq.h
+++ b/include/linux/net/intel/libie/adminq.h
@@ -192,6 +192,7 @@ LIBIE_CHECK_STRUCT_LEN(16, libie_aqc_list_caps);
 #define LIBIE_AQC_CAPS_TX_SCHED_TOPO_COMP_MODE		0x0085
 #define LIBIE_AQC_CAPS_NAC_TOPOLOGY			0x0087
 #define LIBIE_AQC_CAPS_FW_LAG_SUPPORT			0x0092
+#define LIBIE_AQC_CAPS_EEE				0x009B
 #define LIBIE_AQC_CAPS_FLEX10				0x00F1
 #define LIBIE_AQC_CAPS_CEM				0x00F2
 #define LIBIE_AQC_BIT_ROCEV2_LAG			BIT(0)
-- 
2.31.1