netdev - [PATCH net-next v2 1/2] ethtool: Add CMIS 4.0 module type to UAPI

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Date:   Mon, 23 Nov 2020 11:19:57 +0200
From:   Moshe Shemesh <moshe@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, Andrew Lunn <andrew@...n.ch>,
        Adrian Pop <pop.adrian61@...il.com>,
        Michal Kubecek <mkubecek@...e.cz>
Cc:     netdev@...r.kernel.org, Vladyslav Tarasiuk <vladyslavt@...dia.com>,
        Moshe Shemesh <moshe@...dia.com>
Subject: [PATCH net-next v2 1/2] ethtool: Add CMIS 4.0 module type to UAPI

From: Vladyslav Tarasiuk <vladyslavt@...dia.com>

CMIS 4.0 document describes a universal EEPROM memory layout, which is
used for some modules such as DSFP, OSFP and QSFP-DD modules. In order
to distinguish them in userspace from existing standards, add
corresponding values.

CMIS 4.0 EERPOM memory includes mandatory and optional pages, the max
read length 768B includes passive and active cables mandatory pages.

Signed-off-by: Vladyslav Tarasiuk <vladyslavt@...dia.com>
Reviewed-by: Moshe Shemesh <moshe@...dia.com>
---
 include/uapi/linux/ethtool.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 9ca87bc73c44..0ec4c0ea3235 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -1861,9 +1861,12 @@ static inline int ethtool_validate_duplex(__u8 duplex)
 #define ETH_MODULE_SFF_8636_LEN		256
 #define ETH_MODULE_SFF_8436		0x4
 #define ETH_MODULE_SFF_8436_LEN		256
+#define ETH_MODULE_CMIS_4		0x5
+#define ETH_MODULE_CMIS_4_LEN		256
 
 #define ETH_MODULE_SFF_8636_MAX_LEN     640
 #define ETH_MODULE_SFF_8436_MAX_LEN     640
+#define ETH_MODULE_CMIS_4_MAX_LEN	768
 
 /* Reset flags */
 /* The reset() operation must clear the flags for the components which
-- 
2.18.2