From: David Ahern <dsahern@gmail.com>
Date: Tue, 5 Jun 2018 08:14:09 -0700
Subject: devlink: Add extack to reload and port_{un, }split operations
Patch-mainline: v4.18-rc1
Git-commit: ac0fc8a1bbcbe03ee67278afded105c05eb3535e
References: bsc#1112374

Add extack argument to reload, port_split and port_unsplit operations.

Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlxsw/core.c       |    9 ++++++---
 drivers/net/ethernet/netronome/nfp/nfp_devlink.c |    5 +++--
 drivers/net/netdevsim/devlink.c                  |    3 ++-
 include/net/devlink.h                            |    7 ++++---
 net/core/devlink.c                               |   18 ++++++++++--------
 5 files changed, 25 insertions(+), 17 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -770,7 +770,8 @@ static void mlxsw_core_driver_put(const
 
 static int mlxsw_devlink_port_split(struct devlink *devlink,
 				    unsigned int port_index,
-				    unsigned int count)
+				    unsigned int count,
+				    struct netlink_ext_ack *extack)
 {
 	struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
 
@@ -782,7 +783,8 @@ static int mlxsw_devlink_port_split(stru
 }
 
 static int mlxsw_devlink_port_unsplit(struct devlink *devlink,
-				      unsigned int port_index)
+				      unsigned int port_index,
+				      struct netlink_ext_ack *extack)
 {
 	struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
 
@@ -963,7 +965,8 @@ mlxsw_devlink_sb_occ_tc_port_bind_get(st
 						     pool_type, p_cur, p_max);
 }
 
-static int mlxsw_devlink_core_bus_device_reload(struct devlink *devlink)
+static int mlxsw_devlink_core_bus_device_reload(struct devlink *devlink,
+						struct netlink_ext_ack *extack)
 {
 	struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
 	int err;
--- a/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_devlink.c
@@ -92,7 +92,7 @@ nfp_devlink_set_lanes(struct nfp_pf *pf,
 
 static int
 nfp_devlink_port_split(struct devlink *devlink, unsigned int port_index,
-		       unsigned int count)
+		       unsigned int count, struct netlink_ext_ack *extack)
 {
 	struct nfp_pf *pf = devlink_priv(devlink);
 	struct nfp_eth_table_port eth_port;
@@ -123,7 +123,8 @@ out:
 }
 
 static int
-nfp_devlink_port_unsplit(struct devlink *devlink, unsigned int port_index)
+nfp_devlink_port_unsplit(struct devlink *devlink, unsigned int port_index,
+			 struct netlink_ext_ack *extack)
 {
 	struct nfp_pf *pf = devlink_priv(devlink);
 	struct nfp_eth_table_port eth_port;
--- a/drivers/net/netdevsim/devlink.c
+++ b/drivers/net/netdevsim/devlink.c
@@ -147,7 +147,8 @@ out:
 	return err;
 }
 
-static int nsim_devlink_reload(struct devlink *devlink)
+static int nsim_devlink_reload(struct devlink *devlink,
+			       struct netlink_ext_ack *extack)
 {
 	enum nsim_resource_id res_ids[] = {
 		NSIM_RESOURCE_IPV4_FIB, NSIM_RESOURCE_IPV4_FIB_RULES,
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -296,12 +296,13 @@ struct devlink_resource {
 #define DEVLINK_RESOURCE_ID_PARENT_TOP 0
 
 struct devlink_ops {
-	int (*reload)(struct devlink *devlink);
+	int (*reload)(struct devlink *devlink, struct netlink_ext_ack *extack);
 	int (*port_type_set)(struct devlink_port *devlink_port,
 			     enum devlink_port_type port_type);
 	int (*port_split)(struct devlink *devlink, unsigned int port_index,
-			  unsigned int count);
-	int (*port_unsplit)(struct devlink *devlink, unsigned int port_index);
+			  unsigned int count, struct netlink_ext_ack *extack);
+	int (*port_unsplit)(struct devlink *devlink, unsigned int port_index,
+			    struct netlink_ext_ack *extack);
 	int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index,
 			   u16 pool_index,
 			   struct devlink_sb_pool_info *pool_info);
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -702,12 +702,13 @@ static int devlink_nl_cmd_port_set_doit(
 	return 0;
 }
 
-static int devlink_port_split(struct devlink *devlink,
-			      u32 port_index, u32 count)
+static int devlink_port_split(struct devlink *devlink, u32 port_index,
+			      u32 count, struct netlink_ext_ack *extack)
 
 {
 	if (devlink->ops && devlink->ops->port_split)
-		return devlink->ops->port_split(devlink, port_index, count);
+		return devlink->ops->port_split(devlink, port_index, count,
+						extack);
 	return -EOPNOTSUPP;
 }
 
@@ -724,14 +725,15 @@ static int devlink_nl_cmd_port_split_doi
 
 	port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]);
 	count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]);
-	return devlink_port_split(devlink, port_index, count);
+	return devlink_port_split(devlink, port_index, count, info->extack);
 }
 
-static int devlink_port_unsplit(struct devlink *devlink, u32 port_index)
+static int devlink_port_unsplit(struct devlink *devlink, u32 port_index,
+				struct netlink_ext_ack *extack)
 
 {
 	if (devlink->ops && devlink->ops->port_unsplit)
-		return devlink->ops->port_unsplit(devlink, port_index);
+		return devlink->ops->port_unsplit(devlink, port_index, extack);
 	return -EOPNOTSUPP;
 }
 
@@ -745,7 +747,7 @@ static int devlink_nl_cmd_port_unsplit_d
 		return -EINVAL;
 
 	port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]);
-	return devlink_port_unsplit(devlink, port_index);
+	return devlink_port_unsplit(devlink, port_index, info->extack);
 }
 
 static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink,
@@ -2603,7 +2605,7 @@ static int devlink_nl_cmd_reload(struct
 		NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed");
 		return err;
 	}
-	return devlink->ops->reload(devlink);
+	return devlink->ops->reload(devlink, info->extack);
 }
 
 static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {