devlink: Introduce PCI VF port flavour and port attribute

In an eswitch, PCI VF may have port which is normally represented using a representor netdevice. To have better visibility of eswitch port, its association with VF, and its representor netdevice, introduce a PCI VF port flavour. When devlink port flavour is PCI VF, fill up PCI VF attributes of the port. Extend port name creation using PCI PF and VF number scheme on best effort basis, so that vendor drivers can skip defining their own scheme. $ devlink port show pci/0000:05:00.0/0: type eth netdev eth0 flavour pcipf pfnum 0 pci/0000:05:00.0/1: type eth netdev eth1 flavour pcivf pfnum 0 vfnum 0 pci/0000:05:00.0/2: type eth netdev eth2 flavour pcivf pfnum 0 vfnum 1

Parav Pandit committed 7 years ago

Commit e41b6bf1 parent 98fd2d63 files · +54 −0Browse files

Showing the changes to include/uapi/linux (1 of 3 files). Show all

Unified · Split

include/uapi/linux/devlink.h+6−0

@@ -173,6 +173,10 @@ enum devlink_port_flavour { · 172 unmodified lines
173	173	* the PCI PF. It is an internal
174	174	* port that faces the PCI PF.
175	175	*/
	176	+ DEVLINK_PORT_FLAVOUR_PCI_VF, /* Represents eswitch port
	177	+ * for the PCI VF. It is an internal
	178	+ * port that faces the PCI VF.
	179	+ */
176	180	};
177	181
178	182	enum devlink_param_cmode {
@@ -342,6 +346,8 @@ enum devlink_attr { · 163 unmodified lines
342	346	DEVLINK_ATTR_FLASH_UPDATE_STATUS_TOTAL, /* u64 */
343	347
344	348	DEVLINK_ATTR_PORT_PCI_PF_NUMBER, /* u16 */
	349	+ DEVLINK_ATTR_PORT_PCI_VF_NUMBER, /* u16 */
	350	+
345	351	/* add new attributes above here, update the policy in devlink.c */
346	352
347	353	__DEVLINK_ATTR_MAX,