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authorJakub Kicinski <kuba@kernel.org>2025-08-13 17:31:46 -0700
committerJakub Kicinski <kuba@kernel.org>2025-08-13 17:31:46 -0700
commit212122775ea78ffe0508ee7ed08a9c2b980f09e2 (patch)
tree5cf672b1c8a79afdad4bc53e59e26e4396718892
parent39f8fcda2088382a4aa70b258d6f7225aa386f11 (diff)
parente67a0bc3ed4fd8ee1697cb6d937e2b294ec13b5e (diff)
Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says: ==================== ixgbe: bypass devlink phys_port_name generation Jedrzej adds option to skip phys_port_name generation and opts ixgbe into it as some configurations rely on pre-devlink naming which could end up broken as a result. * '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue: ixgbe: prevent from unwanted interface name changes devlink: let driver opt out of automatic phys_port_name generation ==================== Link: https://patch.msgid.link/20250812205226.1984369-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/ethernet/intel/ixgbe/devlink/devlink.c1
-rw-r--r--include/net/devlink.h6
-rw-r--r--net/devlink/port.c2
3 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/devlink/devlink.c b/drivers/net/ethernet/intel/ixgbe/devlink/devlink.c
index 54f1b83dfe42..d227f4d2a2d1 100644
--- a/drivers/net/ethernet/intel/ixgbe/devlink/devlink.c
+++ b/drivers/net/ethernet/intel/ixgbe/devlink/devlink.c
@@ -543,6 +543,7 @@ int ixgbe_devlink_register_port(struct ixgbe_adapter *adapter)
attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
attrs.phys.port_number = adapter->hw.bus.func;
+ attrs.no_phys_port_name = 1;
ixgbe_devlink_set_switch_id(adapter, &attrs.switch_id);
devlink_port_attrs_set(devlink_port, &attrs);
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 93640a29427c..b32c9ceeb81d 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -78,6 +78,9 @@ struct devlink_port_pci_sf_attrs {
* @flavour: flavour of the port
* @split: indicates if this is split port
* @splittable: indicates if the port can be split.
+ * @no_phys_port_name: skip automatic phys_port_name generation; for
+ * compatibility only, newly added driver/port instance
+ * should never set this.
* @lanes: maximum number of lanes the port supports. 0 value is not passed to netlink.
* @switch_id: if the port is part of switch, this is buffer with ID, otherwise this is NULL
* @phys: physical port attributes
@@ -87,7 +90,8 @@ struct devlink_port_pci_sf_attrs {
*/
struct devlink_port_attrs {
u8 split:1,
- splittable:1;
+ splittable:1,
+ no_phys_port_name:1;
u32 lanes;
enum devlink_port_flavour flavour;
struct netdev_phys_item_id switch_id;
diff --git a/net/devlink/port.c b/net/devlink/port.c
index 939081a0e615..cb8d4df61619 100644
--- a/net/devlink/port.c
+++ b/net/devlink/port.c
@@ -1519,7 +1519,7 @@ static int __devlink_port_phys_port_name_get(struct devlink_port *devlink_port,
struct devlink_port_attrs *attrs = &devlink_port->attrs;
int n = 0;
- if (!devlink_port->attrs_set)
+ if (!devlink_port->attrs_set || devlink_port->attrs.no_phys_port_name)
return -EOPNOTSUPP;
switch (attrs->flavour) {