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authorJiri Pirko <jiri@nvidia.com>2022-04-18 09:42:28 +0300
committerDavid S. Miller <davem@davemloft.net>2022-04-18 11:00:18 +0100
commitb837585985386e05478cb17868d23a6fa87c4f8d (patch)
treec14d4eff80b0ebbda5da6cde9151081be478346b /net/core/devlink.c
parentfc9f50d5b366cd9f35bdee22fe3f8d77833cb1d8 (diff)
devlink: add port to line card relationship set
In order to properly inform user about relationship between port and line card, introduce a driver API to set line card for a port. Use this information to extend port devlink netlink message by line card index and also include the line card index into phys_port_name and by that into a netdevice name. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/devlink.c')
-rw-r--r--net/core/devlink.c26
1 files changed, 25 insertions, 1 deletions
diff --git a/net/core/devlink.c b/net/core/devlink.c
index aec0a517282c..5cc88490f18f 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -1243,6 +1243,10 @@ static int devlink_nl_port_fill(struct sk_buff *msg,
goto nla_put_failure;
if (devlink_nl_port_function_attrs_put(msg, devlink_port, extack))
goto nla_put_failure;
+ if (devlink_port->linecard &&
+ nla_put_u32(msg, DEVLINK_ATTR_LINECARD_INDEX,
+ devlink_port->linecard->index))
+ goto nla_put_failure;
genlmsg_end(msg, hdr);
return 0;
@@ -10105,6 +10109,21 @@ void devlink_rate_nodes_destroy(struct devlink *devlink)
}
EXPORT_SYMBOL_GPL(devlink_rate_nodes_destroy);
+/**
+ * devlink_port_linecard_set - Link port with a linecard
+ *
+ * @devlink_port: devlink port
+ * @linecard: devlink linecard
+ */
+void devlink_port_linecard_set(struct devlink_port *devlink_port,
+ struct devlink_linecard *linecard)
+{
+ if (WARN_ON(devlink_port->devlink))
+ return;
+ devlink_port->linecard = linecard;
+}
+EXPORT_SYMBOL_GPL(devlink_port_linecard_set);
+
static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port,
char *name, size_t len)
{
@@ -10116,7 +10135,12 @@ static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port,
switch (attrs->flavour) {
case DEVLINK_PORT_FLAVOUR_PHYSICAL:
- n = snprintf(name, len, "p%u", attrs->phys.port_number);
+ if (devlink_port->linecard)
+ n = snprintf(name, len, "l%u",
+ devlink_port->linecard->index);
+ if (n < len)
+ n += snprintf(name + n, len - n, "p%u",
+ attrs->phys.port_number);
if (n < len && attrs->split)
n += snprintf(name + n, len - n, "s%u",
attrs->phys.split_subport_number);