netdev - [PATCH v2 net-next] net/mlx4: Add support for EEPROM high pages query for QSFP/QSFP+/QSFP28

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Message-ID: <b17c5336-6dc3-41f2-afa6-f9e79231f224@ans.pl>
Date: Tue, 30 Jul 2024 17:49:53 -0700
From: Krzysztof Olędzki <ole@....pl>
To: Tariq Toukan <tariqt@...dia.com>, "David S. Miller"
 <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        linux-rdma@...r.kernel.org, Dan Merillat <git@....merillat.org>,
        Moshe Shemesh <moshe@...dia.com>, Michal Kubecek <mkubecek@...e.cz>,
        Andrew Lunn <andrew@...n.ch>, Ido Schimmel <idosch@...dia.com>
Subject: [PATCH v2 net-next] net/mlx4: Add support for EEPROM high pages query
 for QSFP/QSFP+/QSFP28

Enable reading additional EEPROM information from high pages such as
thresholds and alarms on QSFP/QSFP+/QSFP28 modules.

"This is similar to commit a708fb7b1f8d ("net/mlx5e: ethtool, Add
support for EEPROM high pages query") but given all the required logic
already exists in mlx4_qsfp_eeprom_params_set() only s/_LEN/MAX_LEN/ is
needed.

Tested-by: Dan Merillat <git@....merillat.org>
Signed-off-by: Krzysztof Piotr Oledzki <ole@....pl>
---
 drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index 619e1c3ef7f9..aca968b4dc15 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -2055,20 +2055,20 @@ static int mlx4_en_get_module_info(struct net_device *dev,
 	switch (data[0] /* identifier */) {
 	case MLX4_MODULE_ID_QSFP:
 		modinfo->type = ETH_MODULE_SFF_8436;
-		modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
+		modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN;
 		break;
 	case MLX4_MODULE_ID_QSFP_PLUS:
 		if (data[1] >= 0x3) { /* revision id */
 			modinfo->type = ETH_MODULE_SFF_8636;
-			modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
+			modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN;
 		} else {
 			modinfo->type = ETH_MODULE_SFF_8436;
-			modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
+			modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN;
 		}
 		break;
 	case MLX4_MODULE_ID_QSFP28:
 		modinfo->type = ETH_MODULE_SFF_8636;
-		modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
+		modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN;
 		break;
 	case MLX4_MODULE_ID_SFP:
 		modinfo->type = ETH_MODULE_SFF_8472;
-- 
2.45.2