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devlink: Expose port split ability 

Add a new attribute that indicates the port split ability to devlink port.

Expose the attribute to user space as RO value, for example:

$devlink port show swp1
pci/0000:03:00.0/61: type eth netdev swp1 flavour physical port 1
splittable false lanes 1

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
This commit is contained in:
Danielle Ratson 2020-07-30 17:33:18 +03:00 committed by David Ahern
parent fcbc6c1c71
commit e5f4165a9e
1 changed files with 4 additions and 0 deletions
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4
devlink/devlink.c
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@ -582,6 +582,7 @@ static const enum mnl_attr_data_type devlink_policy[DEVLINK_ATTR_MAX + 1] = {
[DEVLINK_ATTR_PORT_NETDEV_NAME] = MNL_TYPE_NUL_STRING,
[DEVLINK_ATTR_PORT_IBDEV_NAME] = MNL_TYPE_NUL_STRING,
[DEVLINK_ATTR_PORT_LANES] = MNL_TYPE_U32,
[DEVLINK_ATTR_PORT_SPLITTABLE] = MNL_TYPE_U8,
[DEVLINK_ATTR_SB_INDEX] = MNL_TYPE_U32,
[DEVLINK_ATTR_SB_SIZE] = MNL_TYPE_U32,
[DEVLINK_ATTR_SB_INGRESS_POOL_COUNT] = MNL_TYPE_U16,
@ -3424,6 +3425,9 @@ static void pr_out_port(struct dl *dl, struct nlattr **tb)
if (tb[DEVLINK_ATTR_PORT_SPLIT_GROUP])
print_uint(PRINT_ANY, "split_group", " split_group %u",
mnl_attr_get_u32(tb[DEVLINK_ATTR_PORT_SPLIT_GROUP]));
if (tb[DEVLINK_ATTR_PORT_SPLITTABLE])
print_bool(PRINT_ANY, "splittable", " splittable %s",
mnl_attr_get_u8(tb[DEVLINK_ATTR_PORT_SPLITTABLE]));
if (tb[DEVLINK_ATTR_PORT_LANES])
print_uint(PRINT_ANY, "lanes", " lanes %u",
mnl_attr_get_u32(tb[DEVLINK_ATTR_PORT_LANES]));