diff options
Diffstat (limited to 'include/soc/mscc/ocelot.h')
| -rw-r--r-- | include/soc/mscc/ocelot.h | 111 |
1 files changed, 103 insertions, 8 deletions
diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h index 068f96b1a83e..efc8b613d486 100644 --- a/include/soc/mscc/ocelot.h +++ b/include/soc/mscc/ocelot.h @@ -11,6 +11,66 @@ #include <linux/regmap.h> #include <net/dsa.h> +/* Port Group IDs (PGID) are masks of destination ports. + * + * For L2 forwarding, the switch performs 3 lookups in the PGID table for each + * frame, and forwards the frame to the ports that are present in the logical + * AND of all 3 PGIDs. + * + * These PGID lookups are: + * - In one of PGID[0-63]: for the destination masks. There are 2 paths by + * which the switch selects a destination PGID: + * - The {DMAC, VID} is present in the MAC table. In that case, the + * destination PGID is given by the DEST_IDX field of the MAC table entry + * that matched. + * - The {DMAC, VID} is not present in the MAC table (it is unknown). The + * frame is disseminated as being either unicast, multicast or broadcast, + * and according to that, the destination PGID is chosen as being the + * value contained by ANA_FLOODING_FLD_UNICAST, + * ANA_FLOODING_FLD_MULTICAST or ANA_FLOODING_FLD_BROADCAST. + * The destination PGID can be an unicast set: the first PGIDs, 0 to + * ocelot->num_phys_ports - 1, or a multicast set: the PGIDs from + * ocelot->num_phys_ports to 63. By convention, a unicast PGID corresponds to + * a physical port and has a single bit set in the destination ports mask: + * that corresponding to the port number itself. In contrast, a multicast + * PGID will have potentially more than one single bit set in the destination + * ports mask. + * - In one of PGID[64-79]: for the aggregation mask. The switch classifier + * dissects each frame and generates a 4-bit Link Aggregation Code which is + * used for this second PGID table lookup. The goal of link aggregation is to + * hash multiple flows within the same LAG on to different destination ports. + * The first lookup will result in a PGID with all the LAG members present in + * the destination ports mask, and the second lookup, by Link Aggregation + * Code, will ensure that each flow gets forwarded only to a single port out + * of that mask (there are no duplicates). + * - In one of PGID[80-90]: for the source mask. The third time, the PGID table + * is indexed with the ingress port (plus 80). These PGIDs answer the + * question "is port i allowed to forward traffic to port j?" If yes, then + * BIT(j) of PGID 80+i will be found set. The third PGID lookup can be used + * to enforce the L2 forwarding matrix imposed by e.g. a Linux bridge. + */ + +/* Reserve some destination PGIDs at the end of the range: + * PGID_CPU: used for whitelisting certain MAC addresses, such as the addresses + * of the switch port net devices, towards the CPU port module. + * PGID_UC: the flooding destinations for unknown unicast traffic. + * PGID_MC: the flooding destinations for broadcast and non-IP multicast + * traffic. + * PGID_MCIPV4: the flooding destinations for IPv4 multicast traffic. + * PGID_MCIPV6: the flooding destinations for IPv6 multicast traffic. + */ +#define PGID_CPU 59 +#define PGID_UC 60 +#define PGID_MC 61 +#define PGID_MCIPV4 62 +#define PGID_MCIPV6 63 + +/* Aggregation PGIDs, one per Link Aggregation Code */ +#define PGID_AGGR 64 + +/* Source PGIDs, one per physical port */ +#define PGID_SRC 80 + #define IFH_INJ_BYPASS BIT(31) #define IFH_INJ_POP_CNT_DISABLE (3 << 28) @@ -402,15 +462,22 @@ enum ocelot_tag_prefix { struct ocelot; struct ocelot_ops { - void (*pcs_init)(struct ocelot *ocelot, int port); int (*reset)(struct ocelot *ocelot); }; +struct ocelot_acl_block { + struct list_head rules; + int count; + int pol_lpr; +}; + struct ocelot_port { struct ocelot *ocelot; void __iomem *regs; + bool vlan_aware; + /* Ingress default VLAN (pvid) */ u16 pvid; @@ -435,6 +502,7 @@ struct ocelot { unsigned int num_stats; int shared_queue_sz; + int num_mact_rows; struct net_device *hw_bridge_dev; u16 bridge_mask; @@ -447,14 +515,27 @@ struct ocelot { /* Keep track of the vlan port masks */ u32 vlan_mask[VLAN_N_VID]; + /* In tables like ANA:PORT and the ANA:PGID:PGID mask, + * the CPU is located after the physical ports (at the + * num_phys_ports index). + */ u8 num_phys_ports; - u8 num_cpu_ports; - u8 cpu; + + int npi; + + enum ocelot_tag_prefix inj_prefix; + enum ocelot_tag_prefix xtr_prefix; u32 *lags; struct list_head multicast; + struct ocelot_acl_block acl_block; + + const struct vcap_field *vcap_is2_keys; + const struct vcap_field *vcap_is2_actions; + const struct vcap_props *vcap; + /* Workqueue to check statistics for overflow with its lock */ struct mutex stats_lock; u64 *stats; @@ -469,8 +550,11 @@ struct ocelot { struct mutex ptp_lock; /* Protects the PTP clock */ spinlock_t ptp_clock_lock; +}; - void (*port_pcs_init)(struct ocelot_port *port); +struct ocelot_policer { + u32 rate; /* kilobit per second */ + u32 burst; /* bytes */ }; #define ocelot_read_ix(ocelot, reg, gi, ri) __ocelot_read_ix(ocelot, reg, reg##_GSZ * (gi) + reg##_RSZ * (ri)) @@ -500,9 +584,9 @@ void __ocelot_rmw_ix(struct ocelot *ocelot, u32 val, u32 mask, u32 reg, int ocelot_regfields_init(struct ocelot *ocelot, const struct reg_field *const regfields); struct regmap *ocelot_regmap_init(struct ocelot *ocelot, struct resource *res); -void ocelot_set_cpu_port(struct ocelot *ocelot, int cpu, - enum ocelot_tag_prefix injection, - enum ocelot_tag_prefix extraction); +void ocelot_configure_cpu(struct ocelot *ocelot, int npi, + enum ocelot_tag_prefix injection, + enum ocelot_tag_prefix extraction); int ocelot_init(struct ocelot *ocelot); void ocelot_deinit(struct ocelot *ocelot); void ocelot_init_port(struct ocelot *ocelot, int port); @@ -529,7 +613,7 @@ int ocelot_port_bridge_leave(struct ocelot *ocelot, int port, int ocelot_fdb_dump(struct ocelot *ocelot, int port, dsa_fdb_dump_cb_t *cb, void *data); int ocelot_fdb_add(struct ocelot *ocelot, int port, - const unsigned char *addr, u16 vid, bool vlan_aware); + const unsigned char *addr, u16 vid); int ocelot_fdb_del(struct ocelot *ocelot, int port, const unsigned char *addr, u16 vid); int ocelot_vlan_add(struct ocelot *ocelot, int port, u16 vid, bool pvid, @@ -541,5 +625,16 @@ int ocelot_ptp_gettime64(struct ptp_clock_info *ptp, struct timespec64 *ts); int ocelot_port_add_txtstamp_skb(struct ocelot_port *ocelot_port, struct sk_buff *skb); void ocelot_get_txtstamp(struct ocelot *ocelot); +void ocelot_port_set_maxlen(struct ocelot *ocelot, int port, size_t sdu); +int ocelot_get_max_mtu(struct ocelot *ocelot, int port); +int ocelot_port_policer_add(struct ocelot *ocelot, int port, + struct ocelot_policer *pol); +int ocelot_port_policer_del(struct ocelot *ocelot, int port); +int ocelot_cls_flower_replace(struct ocelot *ocelot, int port, + struct flow_cls_offload *f, bool ingress); +int ocelot_cls_flower_destroy(struct ocelot *ocelot, int port, + struct flow_cls_offload *f, bool ingress); +int ocelot_cls_flower_stats(struct ocelot *ocelot, int port, + struct flow_cls_offload *f, bool ingress); #endif |