diff options
Diffstat (limited to 'drivers/net/dsa/ocelot/felix.h')
| -rw-r--r-- | drivers/net/dsa/ocelot/felix.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/net/dsa/ocelot/felix.h b/drivers/net/dsa/ocelot/felix.h new file mode 100644 index 0000000000..1d4befe7cf --- /dev/null +++ b/drivers/net/dsa/ocelot/felix.h @@ -0,0 +1,105 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright 2019 NXP + */ +#ifndef _MSCC_FELIX_H +#define _MSCC_FELIX_H + +#define ocelot_to_felix(o) container_of((o), struct felix, ocelot) +#define FELIX_MAC_QUIRKS OCELOT_QUIRK_PCS_PERFORMS_RATE_ADAPTATION + +#define OCELOT_PORT_MODE_NONE 0 +#define OCELOT_PORT_MODE_INTERNAL BIT(0) +#define OCELOT_PORT_MODE_SGMII BIT(1) +#define OCELOT_PORT_MODE_QSGMII BIT(2) +#define OCELOT_PORT_MODE_2500BASEX BIT(3) +#define OCELOT_PORT_MODE_USXGMII BIT(4) +#define OCELOT_PORT_MODE_1000BASEX BIT(5) + +struct device_node; + +/* Platform-specific information */ +struct felix_info { + /* Hardcoded resources provided by the hardware instantiation. */ + const struct resource *resources; + size_t num_resources; + /* Names of the mandatory resources that will be requested during + * probe. Must have TARGET_MAX elements, since it is indexed by target. + */ + const char *const *resource_names; + const struct reg_field *regfields; + const u32 *const *map; + const struct ocelot_ops *ops; + const u32 *port_modes; + int num_mact_rows; + int num_ports; + int num_tx_queues; + struct vcap_props *vcap; + u16 vcap_pol_base; + u16 vcap_pol_max; + u16 vcap_pol_base2; + u16 vcap_pol_max2; + const struct ptp_clock_info *ptp_caps; + unsigned long quirks; + + /* Some Ocelot switches are integrated into the SoC without the + * extraction IRQ line connected to the ARM GIC. By enabling this + * workaround, the few packets that are delivered to the CPU port + * module (currently only PTP) are copied not only to the hardware CPU + * port module, but also to the 802.1Q Ethernet CPU port, and polling + * the extraction registers is triggered once the DSA tagger sees a PTP + * frame. The Ethernet frame is only used as a notification: it is + * dropped, and the original frame is extracted over MMIO and annotated + * with the RX timestamp. + */ + bool quirk_no_xtr_irq; + + int (*mdio_bus_alloc)(struct ocelot *ocelot); + void (*mdio_bus_free)(struct ocelot *ocelot); + int (*port_setup_tc)(struct dsa_switch *ds, int port, + enum tc_setup_type type, void *type_data); + void (*port_sched_speed_set)(struct ocelot *ocelot, int port, + u32 speed); + void (*phylink_mac_config)(struct ocelot *ocelot, int port, + unsigned int mode, + const struct phylink_link_state *state); + int (*configure_serdes)(struct ocelot *ocelot, int port, + struct device_node *portnp); +}; + +/* Methods for initializing the hardware resources specific to a tagging + * protocol (like the NPI port, for "ocelot" or "seville", or the VCAP TCAMs, + * for "ocelot-8021q"). + * It is important that the resources configured here do not have side effects + * for the other tagging protocols. If that is the case, their configuration + * needs to go to felix_tag_proto_setup_shared(). + */ +struct felix_tag_proto_ops { + int (*setup)(struct dsa_switch *ds); + void (*teardown)(struct dsa_switch *ds); + unsigned long (*get_host_fwd_mask)(struct dsa_switch *ds); + int (*change_master)(struct dsa_switch *ds, int port, + struct net_device *master, + struct netlink_ext_ack *extack); +}; + +extern const struct dsa_switch_ops felix_switch_ops; + +/* DSA glue / front-end for struct ocelot */ +struct felix { + struct dsa_switch *ds; + const struct felix_info *info; + struct ocelot ocelot; + struct mii_bus *imdio; + struct phylink_pcs **pcs; + resource_size_t switch_base; + enum dsa_tag_protocol tag_proto; + const struct felix_tag_proto_ops *tag_proto_ops; + struct kthread_worker *xmit_worker; + unsigned long host_flood_uc_mask; + unsigned long host_flood_mc_mask; +}; + +struct net_device *felix_port_to_netdev(struct ocelot *ocelot, int port); +int felix_netdev_to_port(struct net_device *dev); + +#endif |