xref: /openbmc/linux/drivers/net/dsa/ocelot/felix.h (revision c6081914)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright 2019 NXP
3  */
4 #ifndef _MSCC_FELIX_H
5 #define _MSCC_FELIX_H
6 
7 #define ocelot_to_felix(o)		container_of((o), struct felix, ocelot)
8 #define FELIX_MAC_QUIRKS		OCELOT_QUIRK_PCS_PERFORMS_RATE_ADAPTATION
9 
10 #define OCELOT_PORT_MODE_NONE		0
11 #define OCELOT_PORT_MODE_INTERNAL	BIT(0)
12 #define OCELOT_PORT_MODE_SGMII		BIT(1)
13 #define OCELOT_PORT_MODE_QSGMII		BIT(2)
14 #define OCELOT_PORT_MODE_2500BASEX	BIT(3)
15 #define OCELOT_PORT_MODE_USXGMII	BIT(4)
16 #define OCELOT_PORT_MODE_1000BASEX	BIT(5)
17 
18 struct device_node;
19 
20 /* Platform-specific information */
21 struct felix_info {
22 	/* Hardcoded resources provided by the hardware instantiation. */
23 	const struct resource		*resources;
24 	size_t				num_resources;
25 	/* Names of the mandatory resources that will be requested during
26 	 * probe. Must have TARGET_MAX elements, since it is indexed by target.
27 	 */
28 	const char *const		*resource_names;
29 	const struct reg_field		*regfields;
30 	const u32 *const		*map;
31 	const struct ocelot_ops		*ops;
32 	const u32			*port_modes;
33 	int				num_mact_rows;
34 	int				num_ports;
35 	int				num_tx_queues;
36 	struct vcap_props		*vcap;
37 	u16				vcap_pol_base;
38 	u16				vcap_pol_max;
39 	u16				vcap_pol_base2;
40 	u16				vcap_pol_max2;
41 	const struct ptp_clock_info	*ptp_caps;
42 	unsigned long			quirks;
43 
44 	/* Some Ocelot switches are integrated into the SoC without the
45 	 * extraction IRQ line connected to the ARM GIC. By enabling this
46 	 * workaround, the few packets that are delivered to the CPU port
47 	 * module (currently only PTP) are copied not only to the hardware CPU
48 	 * port module, but also to the 802.1Q Ethernet CPU port, and polling
49 	 * the extraction registers is triggered once the DSA tagger sees a PTP
50 	 * frame. The Ethernet frame is only used as a notification: it is
51 	 * dropped, and the original frame is extracted over MMIO and annotated
52 	 * with the RX timestamp.
53 	 */
54 	bool				quirk_no_xtr_irq;
55 
56 	int	(*mdio_bus_alloc)(struct ocelot *ocelot);
57 	void	(*mdio_bus_free)(struct ocelot *ocelot);
58 	int	(*port_setup_tc)(struct dsa_switch *ds, int port,
59 				 enum tc_setup_type type, void *type_data);
60 	void	(*port_sched_speed_set)(struct ocelot *ocelot, int port,
61 					u32 speed);
62 	void	(*phylink_mac_config)(struct ocelot *ocelot, int port,
63 				      unsigned int mode,
64 				      const struct phylink_link_state *state);
65 	int	(*configure_serdes)(struct ocelot *ocelot, int port,
66 				    struct device_node *portnp);
67 };
68 
69 /* Methods for initializing the hardware resources specific to a tagging
70  * protocol (like the NPI port, for "ocelot" or "seville", or the VCAP TCAMs,
71  * for "ocelot-8021q").
72  * It is important that the resources configured here do not have side effects
73  * for the other tagging protocols. If that is the case, their configuration
74  * needs to go to felix_tag_proto_setup_shared().
75  */
76 struct felix_tag_proto_ops {
77 	int (*setup)(struct dsa_switch *ds);
78 	void (*teardown)(struct dsa_switch *ds);
79 	unsigned long (*get_host_fwd_mask)(struct dsa_switch *ds);
80 	int (*change_master)(struct dsa_switch *ds, int port,
81 			     struct net_device *master,
82 			     struct netlink_ext_ack *extack);
83 };
84 
85 extern const struct dsa_switch_ops felix_switch_ops;
86 
87 /* DSA glue / front-end for struct ocelot */
88 struct felix {
89 	struct dsa_switch		*ds;
90 	const struct felix_info		*info;
91 	struct ocelot			ocelot;
92 	struct mii_bus			*imdio;
93 	struct phylink_pcs		**pcs;
94 	resource_size_t			switch_base;
95 	enum dsa_tag_protocol		tag_proto;
96 	const struct felix_tag_proto_ops *tag_proto_ops;
97 	struct kthread_worker		*xmit_worker;
98 	unsigned long			host_flood_uc_mask;
99 	unsigned long			host_flood_mc_mask;
100 };
101 
102 struct net_device *felix_port_to_netdev(struct ocelot *ocelot, int port);
103 int felix_netdev_to_port(struct net_device *dev);
104 
105 #endif
106