From: saeed@kernel.org
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Jason Gunthorpe <jgg@nvidia.com>
Cc: Leon Romanovsky <leonro@nvidia.com>,
netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
David Ahern <dsahern@kernel.org>,
Jacob Keller <jacob.e.keller@intel.com>,
Sridhar Samudrala <sridhar.samudrala@intel.com>,
david.m.ertman@intel.com, dan.j.williams@intel.com,
kiran.patil@intel.com, gregkh@linuxfoundation.org,
Parav Pandit <parav@nvidia.com>, Jiri Pirko <jiri@nvidia.com>,
Vu Pham <vuhuong@nvidia.com>, Saeed Mahameed <saeedm@nvidia.com>
Subject: [PATCH net-next v2 01/14] devlink: Prepare code to fill multiple port function attributes
Date: Tue, 8 Dec 2020 23:29:21 -0800 [thread overview]
Message-ID: <20201209072934.1272819-2-saeed@kernel.org> (raw)
In-Reply-To: <20201209072934.1272819-1-saeed@kernel.org>
From: Parav Pandit <parav@nvidia.com>
Prepare code to fill zero or more port function optional attributes.
Subsequent patch makes use of this to fill more port function
attributes.
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Vu Pham <vuhuong@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
net/core/devlink.c | 63 +++++++++++++++++++++++-----------------------
1 file changed, 32 insertions(+), 31 deletions(-)
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 88c0ac8ed444..d812ed26a330 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -712,6 +712,31 @@ static int devlink_nl_port_attrs_put(struct sk_buff *msg,
return 0;
}
+static int
+devlink_port_function_hw_addr_fill(struct devlink *devlink, const struct devlink_ops *ops,
+ struct devlink_port *port, struct sk_buff *msg,
+ struct netlink_ext_ack *extack, bool *msg_updated)
+{
+ u8 hw_addr[MAX_ADDR_LEN];
+ int hw_addr_len;
+ int err;
+
+ if (!ops->port_function_hw_addr_get)
+ return 0;
+
+ err = ops->port_function_hw_addr_get(devlink, port, hw_addr, &hw_addr_len, extack);
+ if (err) {
+ if (err == -EOPNOTSUPP)
+ return 0;
+ return err;
+ }
+ err = nla_put(msg, DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, hw_addr_len, hw_addr);
+ if (err)
+ return err;
+ *msg_updated = true;
+ return 0;
+}
+
static int
devlink_nl_port_function_attrs_put(struct sk_buff *msg, struct devlink_port *port,
struct netlink_ext_ack *extack)
@@ -719,36 +744,16 @@ devlink_nl_port_function_attrs_put(struct sk_buff *msg, struct devlink_port *por
struct devlink *devlink = port->devlink;
const struct devlink_ops *ops;
struct nlattr *function_attr;
- bool empty_nest = true;
- int err = 0;
+ bool msg_updated = false;
+ int err;
function_attr = nla_nest_start_noflag(msg, DEVLINK_ATTR_PORT_FUNCTION);
if (!function_attr)
return -EMSGSIZE;
ops = devlink->ops;
- if (ops->port_function_hw_addr_get) {
- int hw_addr_len;
- u8 hw_addr[MAX_ADDR_LEN];
-
- err = ops->port_function_hw_addr_get(devlink, port, hw_addr, &hw_addr_len, extack);
- if (err == -EOPNOTSUPP) {
- /* Port function attributes are optional for a port. If port doesn't
- * support function attribute, returning -EOPNOTSUPP is not an error.
- */
- err = 0;
- goto out;
- } else if (err) {
- goto out;
- }
- err = nla_put(msg, DEVLINK_PORT_FUNCTION_ATTR_HW_ADDR, hw_addr_len, hw_addr);
- if (err)
- goto out;
- empty_nest = false;
- }
-
-out:
- if (err || empty_nest)
+ err = devlink_port_function_hw_addr_fill(devlink, ops, port, msg, extack, &msg_updated);
+ if (err || !msg_updated)
nla_nest_cancel(msg, function_attr);
else
nla_nest_end(msg, function_attr);
@@ -986,7 +991,6 @@ devlink_port_function_hw_addr_set(struct devlink *devlink, struct devlink_port *
const struct devlink_ops *ops;
const u8 *hw_addr;
int hw_addr_len;
- int err;
hw_addr = nla_data(attr);
hw_addr_len = nla_len(attr);
@@ -1011,12 +1015,7 @@ devlink_port_function_hw_addr_set(struct devlink *devlink, struct devlink_port *
return -EOPNOTSUPP;
}
- err = ops->port_function_hw_addr_set(devlink, port, hw_addr, hw_addr_len, extack);
- if (err)
- return err;
-
- devlink_port_notify(port, DEVLINK_CMD_PORT_NEW);
- return 0;
+ return ops->port_function_hw_addr_set(devlink, port, hw_addr, hw_addr_len, extack);
}
static int
@@ -1037,6 +1036,8 @@ devlink_port_function_set(struct devlink *devlink, struct devlink_port *port,
if (attr)
err = devlink_port_function_hw_addr_set(devlink, port, attr, extack);
+ if (!err)
+ devlink_port_notify(port, DEVLINK_CMD_PORT_NEW);
return err;
}
--
2.26.2
next prev parent reply other threads:[~2020-12-09 7:31 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-09 7:29 [PATCH net-next v2 00/14] Add mlx5 subfunction support saeed
2020-12-09 7:29 ` saeed [this message]
2020-12-09 7:29 ` [PATCH net-next v2 02/14] devlink: Introduce PCI SF port flavour and port attribute saeed
2020-12-09 7:29 ` [PATCH net-next v2 03/14] devlink: Support add and delete devlink port saeed
2020-12-09 7:29 ` [PATCH net-next v2 04/14] devlink: Support get and set state of port function saeed
2020-12-09 7:29 ` [PATCH net-next v2 05/14] net/mlx5: Introduce vhca state event notifier saeed
2020-12-09 7:29 ` [PATCH net-next v2 06/14] net/mlx5: SF, Add auxiliary device support saeed
2020-12-09 7:29 ` [PATCH net-next v2 07/14] net/mlx5: SF, Add auxiliary device driver saeed
2020-12-09 7:29 ` [PATCH net-next v2 08/14] net/mlx5: E-switch, Prepare eswitch to handle SF vport saeed
2020-12-09 7:29 ` [PATCH net-next v2 09/14] net/mlx5: E-switch, Add eswitch helpers for " saeed
2020-12-09 7:29 ` [PATCH net-next v2 10/14] net/mlx5: SF, Add port add delete functionality saeed
2020-12-09 7:29 ` [PATCH net-next v2 11/14] net/mlx5: SF, Port function state change support saeed
2020-12-09 7:29 ` [PATCH net-next v2 12/14] devlink: Add devlink port documentation saeed
2020-12-09 7:29 ` [PATCH net-next v2 13/14] devlink: Extend devlink port documentation for subfunctions saeed
2020-12-09 7:29 ` [PATCH net-next v2 14/14] net/mlx5: Add devlink subfunction port documentation saeed
2020-12-11 4:11 ` [PATCH net-next v2 00/14] Add mlx5 subfunction support Samudrala, Sridhar
2020-12-11 8:33 ` Parav Pandit
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