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Message-Id: <20190222195410.9494-2-jakub.kicinski@netronome.com>
Date: Fri, 22 Feb 2019 11:54:06 -0800
From: Jakub Kicinski <jakub.kicinski@...ronome.com>
To: davem@...emloft.net, jiri@...nulli.us
Cc: mkubecek@...e.cz, andrew@...n.ch, f.fainelli@...il.com,
netdev@...r.kernel.org, oss-drivers@...ronome.com,
Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH net-next v2 1/5] net: devlink: turn devlink into a built-in
Being able to build devlink as a module causes growing pains.
First all drivers had to add a meta dependency to make sure
they are not built in when devlink is built as a module. Now
we are struggling to invoke ethtool compat code reliably.
Make devlink code built-in, users can still not build it at
all but the dynamically loadable module option is removed.
Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
---
drivers/infiniband/hw/bnxt_re/Kconfig | 1 -
drivers/infiniband/hw/mlx4/Kconfig | 1 -
drivers/net/Kconfig | 1 -
drivers/net/ethernet/broadcom/Kconfig | 1 -
drivers/net/ethernet/cavium/Kconfig | 1 -
drivers/net/ethernet/mellanox/mlx4/Kconfig | 1 -
drivers/net/ethernet/mellanox/mlx5/core/Kconfig | 1 -
drivers/net/ethernet/mellanox/mlxsw/Kconfig | 1 -
drivers/net/ethernet/netronome/Kconfig | 1 -
include/net/devlink.h | 10 ++++------
net/Kconfig | 11 +----------
net/core/devlink.c | 15 ++-------------
net/dsa/Kconfig | 2 +-
13 files changed, 8 insertions(+), 39 deletions(-)
diff --git a/drivers/infiniband/hw/bnxt_re/Kconfig b/drivers/infiniband/hw/bnxt_re/Kconfig
index 18f5ed082f41..19982a4a9bba 100644
--- a/drivers/infiniband/hw/bnxt_re/Kconfig
+++ b/drivers/infiniband/hw/bnxt_re/Kconfig
@@ -1,7 +1,6 @@
config INFINIBAND_BNXT_RE
tristate "Broadcom Netxtreme HCA support"
depends on ETHERNET && NETDEVICES && PCI && INET && DCB
- depends on MAY_USE_DEVLINK
select NET_VENDOR_BROADCOM
select BNXT
---help---
diff --git a/drivers/infiniband/hw/mlx4/Kconfig b/drivers/infiniband/hw/mlx4/Kconfig
index d1de3285fd88..4e9936731867 100644
--- a/drivers/infiniband/hw/mlx4/Kconfig
+++ b/drivers/infiniband/hw/mlx4/Kconfig
@@ -2,7 +2,6 @@ config MLX4_INFINIBAND
tristate "Mellanox ConnectX HCA support"
depends on NETDEVICES && ETHERNET && PCI && INET
depends on INFINIBAND_USER_ACCESS || !INFINIBAND_USER_ACCESS
- depends on MAY_USE_DEVLINK
select NET_VENDOR_MELLANOX
select MLX4_CORE
---help---
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 6210757772ed..5e4ca082cfcd 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -505,7 +505,6 @@ source "drivers/net/hyperv/Kconfig"
config NETDEVSIM
tristate "Simulated networking device"
depends on DEBUG_FS
- depends on MAY_USE_DEVLINK
help
This driver is a developer testing tool and software model that can
be used to test various control path networking APIs, especially
diff --git a/drivers/net/ethernet/broadcom/Kconfig b/drivers/net/ethernet/broadcom/Kconfig
index c1d3ee9baf7e..716bfbba59cf 100644
--- a/drivers/net/ethernet/broadcom/Kconfig
+++ b/drivers/net/ethernet/broadcom/Kconfig
@@ -194,7 +194,6 @@ config SYSTEMPORT
config BNXT
tristate "Broadcom NetXtreme-C/E support"
depends on PCI
- depends on MAY_USE_DEVLINK
select FW_LOADER
select LIBCRC32C
---help---
diff --git a/drivers/net/ethernet/cavium/Kconfig b/drivers/net/ethernet/cavium/Kconfig
index 05f4a3b21e29..6650e2a5f171 100644
--- a/drivers/net/ethernet/cavium/Kconfig
+++ b/drivers/net/ethernet/cavium/Kconfig
@@ -64,7 +64,6 @@ config CAVIUM_PTP
config LIQUIDIO
tristate "Cavium LiquidIO support"
depends on 64BIT && PCI
- depends on MAY_USE_DEVLINK
depends on PCI
imply PTP_1588_CLOCK
select FW_LOADER
diff --git a/drivers/net/ethernet/mellanox/mlx4/Kconfig b/drivers/net/ethernet/mellanox/mlx4/Kconfig
index f200b8c420d5..ff8057ed97ee 100644
--- a/drivers/net/ethernet/mellanox/mlx4/Kconfig
+++ b/drivers/net/ethernet/mellanox/mlx4/Kconfig
@@ -4,7 +4,6 @@
config MLX4_EN
tristate "Mellanox Technologies 1/10/40Gbit Ethernet support"
- depends on MAY_USE_DEVLINK
depends on PCI && NETDEVICES && ETHERNET && INET
select MLX4_CORE
imply PTP_1588_CLOCK
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
index 37a551436e4a..6debffb8336b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig
@@ -4,7 +4,6 @@
config MLX5_CORE
tristate "Mellanox 5th generation network adapters (ConnectX series) core driver"
- depends on MAY_USE_DEVLINK
depends on PCI
imply PTP_1588_CLOCK
imply VXLAN
diff --git a/drivers/net/ethernet/mellanox/mlxsw/Kconfig b/drivers/net/ethernet/mellanox/mlxsw/Kconfig
index b9a25aed5d11..9c195dfed031 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/Kconfig
+++ b/drivers/net/ethernet/mellanox/mlxsw/Kconfig
@@ -4,7 +4,6 @@
config MLXSW_CORE
tristate "Mellanox Technologies Switch ASICs support"
- depends on MAY_USE_DEVLINK
---help---
This driver supports Mellanox Technologies Switch ASICs family.
diff --git a/drivers/net/ethernet/netronome/Kconfig b/drivers/net/ethernet/netronome/Kconfig
index 66f15b05b65e..549898d5d450 100644
--- a/drivers/net/ethernet/netronome/Kconfig
+++ b/drivers/net/ethernet/netronome/Kconfig
@@ -19,7 +19,6 @@ config NFP
tristate "Netronome(R) NFP4000/NFP6000 NIC driver"
depends on PCI && PCI_MSI
depends on VXLAN || VXLAN=n
- depends on MAY_USE_DEVLINK
---help---
This driver supports the Netronome(R) NFP4000/NFP6000 based
cards working as a advanced Ethernet NIC. It works with both
diff --git a/include/net/devlink.h b/include/net/devlink.h
index a2da49dd9147..f9f7fe974652 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -707,6 +707,10 @@ devlink_health_reporter_priv(struct devlink_health_reporter *reporter);
int devlink_health_report(struct devlink_health_reporter *reporter,
const char *msg, void *priv_ctx);
+void devlink_compat_running_version(struct net_device *dev,
+ char *buf, size_t len);
+int devlink_compat_flash_update(struct net_device *dev, const char *file_name);
+
#else
static inline struct devlink *devlink_alloc(const struct devlink_ops *ops,
@@ -1190,13 +1194,7 @@ devlink_health_report(struct devlink_health_reporter *reporter,
{
return 0;
}
-#endif
-#if IS_REACHABLE(CONFIG_NET_DEVLINK)
-void devlink_compat_running_version(struct net_device *dev,
- char *buf, size_t len);
-int devlink_compat_flash_update(struct net_device *dev, const char *file_name);
-#else
static inline void
devlink_compat_running_version(struct net_device *dev, char *buf, size_t len)
{
diff --git a/net/Kconfig b/net/Kconfig
index 62da6148e9f8..1efe1f9ee492 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -429,21 +429,12 @@ config NET_SOCK_MSG
with the help of BPF programs.
config NET_DEVLINK
- tristate "Network physical/parent device Netlink interface"
+ bool "Network physical/parent device Netlink interface"
help
Network physical/parent device Netlink interface provides
infrastructure to support access to physical chip-wide config and
monitoring.
-config MAY_USE_DEVLINK
- tristate
- default m if NET_DEVLINK=m
- default y if NET_DEVLINK=y || NET_DEVLINK=n
- help
- Drivers using the devlink infrastructure should have a dependency
- on MAY_USE_DEVLINK to ensure they do not cause link errors when
- devlink is a loadable module and the driver using it is built-in.
-
config PAGE_POOL
bool
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 4f31ddc883e7..05e04ea0a5c7 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -6482,20 +6482,9 @@ int devlink_compat_flash_update(struct net_device *dev, const char *file_name)
return -EOPNOTSUPP;
}
-static int __init devlink_module_init(void)
+static int __init devlink_init(void)
{
return genl_register_family(&devlink_nl_family);
}
-static void __exit devlink_module_exit(void)
-{
- genl_unregister_family(&devlink_nl_family);
-}
-
-module_init(devlink_module_init);
-module_exit(devlink_module_exit);
-
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Jiri Pirko <jiri@...lanox.com>");
-MODULE_DESCRIPTION("Network physical device Netlink interface");
-MODULE_ALIAS_GENL_FAMILY(DEVLINK_GENL_NAME);
+subsys_initcall(devlink_init);
diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig
index 91e52973ee13..fab49132345f 100644
--- a/net/dsa/Kconfig
+++ b/net/dsa/Kconfig
@@ -6,7 +6,7 @@ config HAVE_NET_DSA
config NET_DSA
tristate "Distributed Switch Architecture"
- depends on HAVE_NET_DSA && MAY_USE_DEVLINK
+ depends on HAVE_NET_DSA
depends on BRIDGE || BRIDGE=n
select NET_SWITCHDEV
select PHYLINK
--
2.19.2
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