netdev - [PATCH net-next 1/3] devlink: Add fw_version

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Date:   Tue, 6 Nov 2018 20:05:00 +0000
From:   Ido Schimmel <idosch@...lanox.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        Jiri Pirko <jiri@...lanox.com>,
        Shalom Toledo <shalomt@...lanox.com>,
        Moshe Shemesh <moshe@...lanox.com>,
        "dsahern@...il.com" <dsahern@...il.com>,
        "jakub.kicinski@...ronome.com" <jakub.kicinski@...ronome.com>,
        "andrew@...n.ch" <andrew@...n.ch>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        mlxsw <mlxsw@...lanox.com>, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 1/3] devlink: Add fw_version_check generic parameter

From: Shalom Toledo <shalomt@...lanox.com>

Many drivers checking the device's firmware version during the
initialization flow and flashing a compatible version if the current
version is not.

fw_version_check gives the ability to skip this check which allows to run
the device with a different firmware version than required by the driver
for testing and/or debugging purposes.

Signed-off-by: Shalom Toledo <shalomt@...lanox.com>
Reviewed-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
 include/net/devlink.h | 4 ++++
 net/core/devlink.c    | 5 +++++
 2 files changed, 9 insertions(+)

diff --git a/include/net/devlink.h b/include/net/devlink.h
index 45db0c79462d..d47ea9d38252 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -365,6 +365,7 @@ enum devlink_param_generic_id {
 	DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI,
 	DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
 	DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
+	DEVLINK_PARAM_GENERIC_ID_FW_VERSION_CHECK,
 
 	/* add new param generic ids above here*/
 	__DEVLINK_PARAM_GENERIC_ID_MAX,
@@ -392,6 +393,9 @@ enum devlink_param_generic_id {
 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min"
 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32
 
+#define DEVLINK_PARAM_GENERIC_FW_VERSION_CHECK_NAME "fw_version_check"
+#define DEVLINK_PARAM_GENERIC_FW_VERSION_CHECK_TYPE DEVLINK_PARAM_TYPE_BOOL
+
 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)	\
 {									\
 	.id = DEVLINK_PARAM_GENERIC_ID_##_id,				\
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 3a4b29a13d31..1a09ad057851 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -2692,6 +2692,11 @@ static const struct devlink_param devlink_param_generic[] = {
 		.name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME,
 		.type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE,
 	},
+	{
+		.id = DEVLINK_PARAM_GENERIC_ID_FW_VERSION_CHECK,
+		.name = DEVLINK_PARAM_GENERIC_FW_VERSION_CHECK_NAME,
+		.type = DEVLINK_PARAM_GENERIC_FW_VERSION_CHECK_TYPE,
+	},
 };
 
 static int devlink_param_generic_verify(const struct devlink_param *param)
-- 
2.19.1