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net: devlink: extend port attrs for switch ID

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Extend devlink_port_attrs_set() to pass switch ID for ports which are
part of switch and store it in port attrs. For other ports, this is
NULL.

Note that this allows the driver to group devlink ports into one or more
switches according to the actual topology.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
2019-04-03 14:24:16 +02:00
committed by David S. Miller
parent 407dd706fb
commit bec5267cde
6 changed files with 26 additions and 7 deletions
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16
net/core/devlink.c
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@@ -5414,11 +5414,16 @@ EXPORT_SYMBOL_GPL(devlink_port_type_clear);
* @split: indicates if this is split port
* @split_subport_number: if the port is split, this is the number
* of subport.
* @switch_id: if the port is part of switch, this is buffer with ID,
* otwerwise this is NULL
* @switch_id_len: length of the switch_id buffer
*/
void devlink_port_attrs_set(struct devlink_port *devlink_port,
enum devlink_port_flavour flavour,
u32 port_number, bool split,
u32 split_subport_number)
u32 split_subport_number,
const unsigned char *switch_id,
unsigned char switch_id_len)
{
struct devlink_port_attrs *attrs = &devlink_port->attrs;
@@ -5429,6 +5434,15 @@ void devlink_port_attrs_set(struct devlink_port *devlink_port,
attrs->port_number = port_number;
attrs->split = split;
attrs->split_subport_number = split_subport_number;
if (switch_id) {
attrs->switch_port = true;
if (WARN_ON(switch_id_len > MAX_PHYS_ITEM_ID_LEN))
switch_id_len = MAX_PHYS_ITEM_ID_LEN;
memcpy(attrs->switch_id.id, switch_id, switch_id_len);
attrs->switch_id.id_len = switch_id_len;
} else {
attrs->switch_port = false;
}
}
EXPORT_SYMBOL_GPL(devlink_port_attrs_set);