| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Vladimir Oltean | 8525 | 89.11% | 111 | 78.17% |
| Xiaoliang Yang | 344 | 3.60% | 4 | 2.82% |
| Yangbo Lu | 273 | 2.85% | 6 | 4.23% |
| Horatiu Vultur | 101 | 1.06% | 2 | 1.41% |
| Colin Foster | 82 | 0.86% | 2 | 1.41% |
| Russell King | 56 | 0.59% | 4 | 2.82% |
| Ioana Ciornei | 44 | 0.46% | 2 | 1.41% |
| Alexandre Belloni | 40 | 0.42% | 1 | 0.70% |
| Florian Fainelli | 33 | 0.34% | 1 | 0.70% |
| Antoine Tenart | 24 | 0.25% | 1 | 0.70% |
| Joergen Andreasen | 15 | 0.16% | 1 | 0.70% |
| Tobias Waldekranz | 14 | 0.15% | 1 | 0.70% |
| Landen Chao | 5 | 0.05% | 1 | 0.70% |
| David S. Miller | 4 | 0.04% | 1 | 0.70% |
| Claudiu Manoil | 4 | 0.04% | 2 | 1.41% |
| Maxim Kochetkov | 2 | 0.02% | 1 | 0.70% |
| Chenwandun | 1 | 0.01% | 1 | 0.70% |
| Total | 9567 | 142 |
// SPDX-License-Identifier: GPL-2.0 /* Copyright 2019-2021 NXP * * This is an umbrella module for all network switches that are * register-compatible with Ocelot and that perform I/O to their host CPU * through an NPI (Node Processor Interface) Ethernet port. */ #include <uapi/linux/if_bridge.h> #include <soc/mscc/ocelot_vcap.h> #include <soc/mscc/ocelot_qsys.h> #include <soc/mscc/ocelot_sys.h> #include <soc/mscc/ocelot_dev.h> #include <soc/mscc/ocelot_ana.h> #include <soc/mscc/ocelot_ptp.h> #include <soc/mscc/ocelot.h> #include <linux/dsa/8021q.h> #include <linux/dsa/ocelot.h> #include <linux/platform_device.h> #include <linux/ptp_classify.h> #include <linux/module.h> #include <linux/of_net.h> #include <linux/pci.h> #include <linux/of.h> #include <net/pkt_sched.h> #include <net/dsa.h> #include "felix.h" /* Translate the DSA database API into the ocelot switch library API, * which uses VID 0 for all ports that aren't part of a bridge, * and expects the bridge_dev to be NULL in that case. */ static struct net_device *felix_classify_db(struct dsa_db db) { switch (db.type) { case DSA_DB_PORT: case DSA_DB_LAG: return NULL; case DSA_DB_BRIDGE: return db.bridge.dev; default: return ERR_PTR(-EOPNOTSUPP); } } static int felix_cpu_port_for_master(struct dsa_switch *ds, struct net_device *master) { struct ocelot *ocelot = ds->priv; struct dsa_port *cpu_dp; int lag; if (netif_is_lag_master(master)) { mutex_lock(&ocelot->fwd_domain_lock); lag = ocelot_bond_get_id(ocelot, master); mutex_unlock(&ocelot->fwd_domain_lock); return lag; } cpu_dp = master->dsa_ptr; return cpu_dp->index; } /* Set up VCAP ES0 rules for pushing a tag_8021q VLAN towards the CPU such that * the tagger can perform RX source port identification. */ static int felix_tag_8021q_vlan_add_rx(struct dsa_switch *ds, int port, int upstream, u16 vid) { struct ocelot_vcap_filter *outer_tagging_rule; struct ocelot *ocelot = ds->priv; unsigned long cookie; int key_length, err; key_length = ocelot->vcap[VCAP_ES0].keys[VCAP_ES0_IGR_PORT].length; outer_tagging_rule = kzalloc(sizeof(struct ocelot_vcap_filter), GFP_KERNEL); if (!outer_tagging_rule) return -ENOMEM; cookie = OCELOT_VCAP_ES0_TAG_8021Q_RXVLAN(ocelot, port, upstream); outer_tagging_rule->key_type = OCELOT_VCAP_KEY_ANY; outer_tagging_rule->prio = 1; outer_tagging_rule->id.cookie = cookie; outer_tagging_rule->id.tc_offload = false; outer_tagging_rule->block_id = VCAP_ES0; outer_tagging_rule->type = OCELOT_VCAP_FILTER_OFFLOAD; outer_tagging_rule->lookup = 0; outer_tagging_rule->ingress_port.value = port; outer_tagging_rule->ingress_port.mask = GENMASK(key_length - 1, 0); outer_tagging_rule->egress_port.value = upstream; outer_tagging_rule->egress_port.mask = GENMASK(key_length - 1, 0); outer_tagging_rule->action.push_outer_tag = OCELOT_ES0_TAG; outer_tagging_rule->action.tag_a_tpid_sel = OCELOT_TAG_TPID_SEL_8021AD; outer_tagging_rule->action.tag_a_vid_sel = 1; outer_tagging_rule->action.vid_a_val = vid; err = ocelot_vcap_filter_add(ocelot, outer_tagging_rule, NULL); if (err) kfree(outer_tagging_rule); return err; } static int felix_tag_8021q_vlan_del_rx(struct dsa_switch *ds, int port, int upstream, u16 vid) { struct ocelot_vcap_filter *outer_tagging_rule; struct ocelot_vcap_block *block_vcap_es0; struct ocelot *ocelot = ds->priv; unsigned long cookie; block_vcap_es0 = &ocelot->block[VCAP_ES0]; cookie = OCELOT_VCAP_ES0_TAG_8021Q_RXVLAN(ocelot, port, upstream); outer_tagging_rule = ocelot_vcap_block_find_filter_by_id(block_vcap_es0, cookie, false); if (!outer_tagging_rule) return -ENOENT; return ocelot_vcap_filter_del(ocelot, outer_tagging_rule); } /* Set up VCAP IS1 rules for stripping the tag_8021q VLAN on TX and VCAP IS2 * rules for steering those tagged packets towards the correct destination port */ static int felix_tag_8021q_vlan_add_tx(struct dsa_switch *ds, int port, u16 vid) { struct ocelot_vcap_filter *untagging_rule, *redirect_rule; unsigned long cpu_ports = dsa_cpu_ports(ds); struct ocelot *ocelot = ds->priv; unsigned long cookie; int err; untagging_rule = kzalloc(sizeof(struct ocelot_vcap_filter), GFP_KERNEL); if (!untagging_rule) return -ENOMEM; redirect_rule = kzalloc(sizeof(struct ocelot_vcap_filter), GFP_KERNEL); if (!redirect_rule) { kfree(untagging_rule); return -ENOMEM; } cookie = OCELOT_VCAP_IS1_TAG_8021Q_TXVLAN(ocelot, port); untagging_rule->key_type = OCELOT_VCAP_KEY_ANY; untagging_rule->ingress_port_mask = cpu_ports; untagging_rule->vlan.vid.value = vid; untagging_rule->vlan.vid.mask = VLAN_VID_MASK; untagging_rule->prio = 1; untagging_rule->id.cookie = cookie; untagging_rule->id.tc_offload = false; untagging_rule->block_id = VCAP_IS1; untagging_rule->type = OCELOT_VCAP_FILTER_OFFLOAD; untagging_rule->lookup = 0; untagging_rule->action.vlan_pop_cnt_ena = true; untagging_rule->action.vlan_pop_cnt = 1; untagging_rule->action.pag_override_mask = 0xff; untagging_rule->action.pag_val = port; err = ocelot_vcap_filter_add(ocelot, untagging_rule, NULL); if (err) { kfree(untagging_rule); kfree(redirect_rule); return err; } cookie = OCELOT_VCAP_IS2_TAG_8021Q_TXVLAN(ocelot, port); redirect_rule->key_type = OCELOT_VCAP_KEY_ANY; redirect_rule->ingress_port_mask = cpu_ports; redirect_rule->pag = port; redirect_rule->prio = 1; redirect_rule->id.cookie = cookie; redirect_rule->id.tc_offload = false; redirect_rule->block_id = VCAP_IS2; redirect_rule->type = OCELOT_VCAP_FILTER_OFFLOAD; redirect_rule->lookup = 0; redirect_rule->action.mask_mode = OCELOT_MASK_MODE_REDIRECT; redirect_rule->action.port_mask = BIT(port); err = ocelot_vcap_filter_add(ocelot, redirect_rule, NULL); if (err) { ocelot_vcap_filter_del(ocelot, untagging_rule); kfree(redirect_rule); return err; } return 0; } static int felix_tag_8021q_vlan_del_tx(struct dsa_switch *ds, int port, u16 vid) { struct ocelot_vcap_filter *untagging_rule, *redirect_rule; struct ocelot_vcap_block *block_vcap_is1; struct ocelot_vcap_block *block_vcap_is2; struct ocelot *ocelot = ds->priv; unsigned long cookie; int err; block_vcap_is1 = &ocelot->block[VCAP_IS1]; block_vcap_is2 = &ocelot->block[VCAP_IS2]; cookie = OCELOT_VCAP_IS1_TAG_8021Q_TXVLAN(ocelot, port); untagging_rule = ocelot_vcap_block_find_filter_by_id(block_vcap_is1, cookie, false); if (!untagging_rule) return -ENOENT; err = ocelot_vcap_filter_del(ocelot, untagging_rule); if (err) return err; cookie = OCELOT_VCAP_IS2_TAG_8021Q_TXVLAN(ocelot, port); redirect_rule = ocelot_vcap_block_find_filter_by_id(block_vcap_is2, cookie, false); if (!redirect_rule) return -ENOENT; return ocelot_vcap_filter_del(ocelot, redirect_rule); } static int felix_tag_8021q_vlan_add(struct dsa_switch *ds, int port, u16 vid, u16 flags) { struct dsa_port *cpu_dp; int err; /* tag_8021q.c assumes we are implementing this via port VLAN * membership, which we aren't. So we don't need to add any VCAP filter * for the CPU port. */ if (!dsa_is_user_port(ds, port)) return 0; dsa_switch_for_each_cpu_port(cpu_dp, ds) { err = felix_tag_8021q_vlan_add_rx(ds, port, cpu_dp->index, vid); if (err) return err; } err = felix_tag_8021q_vlan_add_tx(ds, port, vid); if (err) goto add_tx_failed; return 0; add_tx_failed: dsa_switch_for_each_cpu_port(cpu_dp, ds) felix_tag_8021q_vlan_del_rx(ds, port, cpu_dp->index, vid); return err; } static int felix_tag_8021q_vlan_del(struct dsa_switch *ds, int port, u16 vid) { struct dsa_port *cpu_dp; int err; if (!dsa_is_user_port(ds, port)) return 0; dsa_switch_for_each_cpu_port(cpu_dp, ds) { err = felix_tag_8021q_vlan_del_rx(ds, port, cpu_dp->index, vid); if (err) return err; } err = felix_tag_8021q_vlan_del_tx(ds, port, vid); if (err) goto del_tx_failed; return 0; del_tx_failed: dsa_switch_for_each_cpu_port(cpu_dp, ds) felix_tag_8021q_vlan_add_rx(ds, port, cpu_dp->index, vid); return err; } static int felix_trap_get_cpu_port(struct dsa_switch *ds, const struct ocelot_vcap_filter *trap) { struct dsa_port *dp; int first_port; if (WARN_ON(!trap->ingress_port_mask)) return -1; first_port = __ffs(trap->ingress_port_mask); dp = dsa_to_port(ds, first_port); return dp->cpu_dp->index; } /* On switches with no extraction IRQ wired, trapped packets need to be * replicated over Ethernet as well, otherwise we'd get no notification of * their arrival when using the ocelot-8021q tagging protocol. */ static int felix_update_trapping_destinations(struct dsa_switch *ds, bool using_tag_8021q) { struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); struct ocelot_vcap_block *block_vcap_is2; struct ocelot_vcap_filter *trap; enum ocelot_mask_mode mask_mode; unsigned long port_mask; bool cpu_copy_ena; int err; if (!felix->info->quirk_no_xtr_irq) return 0; /* We are sure that "cpu" was found, otherwise * dsa_tree_setup_default_cpu() would have failed earlier. */ block_vcap_is2 = &ocelot->block[VCAP_IS2]; /* Make sure all traps are set up for that destination */ list_for_each_entry(trap, &block_vcap_is2->rules, list) { if (!trap->is_trap) continue; /* Figure out the current trapping destination */ if (using_tag_8021q) { /* Redirect to the tag_8021q CPU port. If timestamps * are necessary, also copy trapped packets to the CPU * port module. */ mask_mode = OCELOT_MASK_MODE_REDIRECT; port_mask = BIT(felix_trap_get_cpu_port(ds, trap)); cpu_copy_ena = !!trap->take_ts; } else { /* Trap packets only to the CPU port module, which is * redirected to the NPI port (the DSA CPU port) */ mask_mode = OCELOT_MASK_MODE_PERMIT_DENY; port_mask = 0; cpu_copy_ena = true; } if (trap->action.mask_mode == mask_mode && trap->action.port_mask == port_mask && trap->action.cpu_copy_ena == cpu_copy_ena) continue; trap->action.mask_mode = mask_mode; trap->action.port_mask = port_mask; trap->action.cpu_copy_ena = cpu_copy_ena; err = ocelot_vcap_filter_replace(ocelot, trap); if (err) return err; } return 0; } /* The CPU port module is connected to the Node Processor Interface (NPI). This * is the mode through which frames can be injected from and extracted to an * external CPU, over Ethernet. In NXP SoCs, the "external CPU" is the ARM CPU * running Linux, and this forms a DSA setup together with the enetc or fman * DSA master. */ static void felix_npi_port_init(struct ocelot *ocelot, int port) { ocelot->npi = port; ocelot_write(ocelot, QSYS_EXT_CPU_CFG_EXT_CPUQ_MSK_M | QSYS_EXT_CPU_CFG_EXT_CPU_PORT(port), QSYS_EXT_CPU_CFG); /* NPI port Injection/Extraction configuration */ ocelot_fields_write(ocelot, port, SYS_PORT_MODE_INCL_XTR_HDR, ocelot->npi_xtr_prefix); ocelot_fields_write(ocelot, port, SYS_PORT_MODE_INCL_INJ_HDR, ocelot->npi_inj_prefix); /* Disable transmission of pause frames */ ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 0); } static void felix_npi_port_deinit(struct ocelot *ocelot, int port) { /* Restore hardware defaults */ int unused_port = ocelot->num_phys_ports + 2; ocelot->npi = -1; ocelot_write(ocelot, QSYS_EXT_CPU_CFG_EXT_CPU_PORT(unused_port), QSYS_EXT_CPU_CFG); ocelot_fields_write(ocelot, port, SYS_PORT_MODE_INCL_XTR_HDR, OCELOT_TAG_PREFIX_DISABLED); ocelot_fields_write(ocelot, port, SYS_PORT_MODE_INCL_INJ_HDR, OCELOT_TAG_PREFIX_DISABLED); /* Enable transmission of pause frames */ ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 1); } static int felix_tag_npi_setup(struct dsa_switch *ds) { struct dsa_port *dp, *first_cpu_dp = NULL; struct ocelot *ocelot = ds->priv; dsa_switch_for_each_user_port(dp, ds) { if (first_cpu_dp && dp->cpu_dp != first_cpu_dp) { dev_err(ds->dev, "Multiple NPI ports not supported\n"); return -EINVAL; } first_cpu_dp = dp->cpu_dp; } if (!first_cpu_dp) return -EINVAL; felix_npi_port_init(ocelot, first_cpu_dp->index); return 0; } static void felix_tag_npi_teardown(struct dsa_switch *ds) { struct ocelot *ocelot = ds->priv; felix_npi_port_deinit(ocelot, ocelot->npi); } static unsigned long felix_tag_npi_get_host_fwd_mask(struct dsa_switch *ds) { struct ocelot *ocelot = ds->priv; return BIT(ocelot->num_phys_ports); } static int felix_tag_npi_change_master(struct dsa_switch *ds, int port, struct net_device *master, struct netlink_ext_ack *extack) { struct dsa_port *dp = dsa_to_port(ds, port), *other_dp; struct ocelot *ocelot = ds->priv; if (netif_is_lag_master(master)) { NL_SET_ERR_MSG_MOD(extack, "LAG DSA master only supported using ocelot-8021q"); return -EOPNOTSUPP; } /* Changing the NPI port breaks user ports still assigned to the old * one, so only allow it while they're down, and don't allow them to * come back up until they're all changed to the new one. */ dsa_switch_for_each_user_port(other_dp, ds) { struct net_device *slave = other_dp->slave; if (other_dp != dp && (slave->flags & IFF_UP) && dsa_port_to_master(other_dp) != master) { NL_SET_ERR_MSG_MOD(extack, "Cannot change while old master still has users"); return -EOPNOTSUPP; } } felix_npi_port_deinit(ocelot, ocelot->npi); felix_npi_port_init(ocelot, felix_cpu_port_for_master(ds, master)); return 0; } /* Alternatively to using the NPI functionality, that same hardware MAC * connected internally to the enetc or fman DSA master can be configured to * use the software-defined tag_8021q frame format. As far as the hardware is * concerned, it thinks it is a "dumb switch" - the queues of the CPU port * module are now disconnected from it, but can still be accessed through * register-based MMIO. */ static const struct felix_tag_proto_ops felix_tag_npi_proto_ops = { .setup = felix_tag_npi_setup, .teardown = felix_tag_npi_teardown, .get_host_fwd_mask = felix_tag_npi_get_host_fwd_mask, .change_master = felix_tag_npi_change_master, }; static int felix_tag_8021q_setup(struct dsa_switch *ds) { struct ocelot *ocelot = ds->priv; struct dsa_port *dp; int err; err = dsa_tag_8021q_register(ds, htons(ETH_P_8021AD)); if (err) return err; dsa_switch_for_each_cpu_port(dp, ds) ocelot_port_setup_dsa_8021q_cpu(ocelot, dp->index); dsa_switch_for_each_user_port(dp, ds) ocelot_port_assign_dsa_8021q_cpu(ocelot, dp->index, dp->cpu_dp->index); dsa_switch_for_each_available_port(dp, ds) /* This overwrites ocelot_init(): * Do not forward BPDU frames to the CPU port module, * for 2 reasons: * - When these packets are injected from the tag_8021q * CPU port, we want them to go out, not loop back * into the system. * - STP traffic ingressing on a user port should go to * the tag_8021q CPU port, not to the hardware CPU * port module. */ ocelot_write_gix(ocelot, ANA_PORT_CPU_FWD_BPDU_CFG_BPDU_REDIR_ENA(0), ANA_PORT_CPU_FWD_BPDU_CFG, dp->index); /* The ownership of the CPU port module's queues might have just been * transferred to the tag_8021q tagger from the NPI-based tagger. * So there might still be all sorts of crap in the queues. On the * other hand, the MMIO-based matching of PTP frames is very brittle, * so we need to be careful that there are no extra frames to be * dequeued over MMIO, since we would never know to discard them. */ ocelot_drain_cpu_queue(ocelot, 0); return 0; } static void felix_tag_8021q_teardown(struct dsa_switch *ds) { struct ocelot *ocelot = ds->priv; struct dsa_port *dp; dsa_switch_for_each_available_port(dp, ds) /* Restore the logic from ocelot_init: * do not forward BPDU frames to the front ports. */ ocelot_write_gix(ocelot, ANA_PORT_CPU_FWD_BPDU_CFG_BPDU_REDIR_ENA(0xffff), ANA_PORT_CPU_FWD_BPDU_CFG, dp->index); dsa_switch_for_each_user_port(dp, ds) ocelot_port_unassign_dsa_8021q_cpu(ocelot, dp->index); dsa_switch_for_each_cpu_port(dp, ds) ocelot_port_teardown_dsa_8021q_cpu(ocelot, dp->index); dsa_tag_8021q_unregister(ds); } static unsigned long felix_tag_8021q_get_host_fwd_mask(struct dsa_switch *ds) { return dsa_cpu_ports(ds); } static int felix_tag_8021q_change_master(struct dsa_switch *ds, int port, struct net_device *master, struct netlink_ext_ack *extack) { int cpu = felix_cpu_port_for_master(ds, master); struct ocelot *ocelot = ds->priv; ocelot_port_unassign_dsa_8021q_cpu(ocelot, port); ocelot_port_assign_dsa_8021q_cpu(ocelot, port, cpu); return felix_update_trapping_destinations(ds, true); } static const struct felix_tag_proto_ops felix_tag_8021q_proto_ops = { .setup = felix_tag_8021q_setup, .teardown = felix_tag_8021q_teardown, .get_host_fwd_mask = felix_tag_8021q_get_host_fwd_mask, .change_master = felix_tag_8021q_change_master, }; static void felix_set_host_flood(struct dsa_switch *ds, unsigned long mask, bool uc, bool mc, bool bc) { struct ocelot *ocelot = ds->priv; unsigned long val; val = uc ? mask : 0; ocelot_rmw_rix(ocelot, val, mask, ANA_PGID_PGID, PGID_UC); val = mc ? mask : 0; ocelot_rmw_rix(ocelot, val, mask, ANA_PGID_PGID, PGID_MC); ocelot_rmw_rix(ocelot, val, mask, ANA_PGID_PGID, PGID_MCIPV4); ocelot_rmw_rix(ocelot, val, mask, ANA_PGID_PGID, PGID_MCIPV6); val = bc ? mask : 0; ocelot_rmw_rix(ocelot, val, mask, ANA_PGID_PGID, PGID_BC); } static void felix_migrate_host_flood(struct dsa_switch *ds, const struct felix_tag_proto_ops *proto_ops, const struct felix_tag_proto_ops *old_proto_ops) { struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); unsigned long mask; if (old_proto_ops) { mask = old_proto_ops->get_host_fwd_mask(ds); felix_set_host_flood(ds, mask, false, false, false); } mask = proto_ops->get_host_fwd_mask(ds); felix_set_host_flood(ds, mask, !!felix->host_flood_uc_mask, !!felix->host_flood_mc_mask, true); } static int felix_migrate_mdbs(struct dsa_switch *ds, const struct felix_tag_proto_ops *proto_ops, const struct felix_tag_proto_ops *old_proto_ops) { struct ocelot *ocelot = ds->priv; unsigned long from, to; if (!old_proto_ops) return 0; from = old_proto_ops->get_host_fwd_mask(ds); to = proto_ops->get_host_fwd_mask(ds); return ocelot_migrate_mdbs(ocelot, from, to); } /* Configure the shared hardware resources for a transition between * @old_proto_ops and @proto_ops. * Manual migration is needed because as far as DSA is concerned, no change of * the CPU port is taking place here, just of the tagging protocol. */ static int felix_tag_proto_setup_shared(struct dsa_switch *ds, const struct felix_tag_proto_ops *proto_ops, const struct felix_tag_proto_ops *old_proto_ops) { bool using_tag_8021q = (proto_ops == &felix_tag_8021q_proto_ops); int err; err = felix_migrate_mdbs(ds, proto_ops, old_proto_ops); if (err) return err; felix_update_trapping_destinations(ds, using_tag_8021q); felix_migrate_host_flood(ds, proto_ops, old_proto_ops); return 0; } /* This always leaves the switch in a consistent state, because although the * tag_8021q setup can fail, the NPI setup can't. So either the change is made, * or the restoration is guaranteed to work. */ static int felix_change_tag_protocol(struct dsa_switch *ds, enum dsa_tag_protocol proto) { const struct felix_tag_proto_ops *old_proto_ops, *proto_ops; struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); int err; switch (proto) { case DSA_TAG_PROTO_SEVILLE: case DSA_TAG_PROTO_OCELOT: proto_ops = &felix_tag_npi_proto_ops; break; case DSA_TAG_PROTO_OCELOT_8021Q: proto_ops = &felix_tag_8021q_proto_ops; break; default: return -EPROTONOSUPPORT; } old_proto_ops = felix->tag_proto_ops; if (proto_ops == old_proto_ops) return 0; err = proto_ops->setup(ds); if (err) goto setup_failed; err = felix_tag_proto_setup_shared(ds, proto_ops, old_proto_ops); if (err) goto setup_shared_failed; if (old_proto_ops) old_proto_ops->teardown(ds); felix->tag_proto_ops = proto_ops; felix->tag_proto = proto; return 0; setup_shared_failed: proto_ops->teardown(ds); setup_failed: return err; } static enum dsa_tag_protocol felix_get_tag_protocol(struct dsa_switch *ds, int port, enum dsa_tag_protocol mp) { struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); return felix->tag_proto; } static void felix_port_set_host_flood(struct dsa_switch *ds, int port, bool uc, bool mc) { struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); unsigned long mask; if (uc) felix->host_flood_uc_mask |= BIT(port); else felix->host_flood_uc_mask &= ~BIT(port); if (mc) felix->host_flood_mc_mask |= BIT(port); else felix->host_flood_mc_mask &= ~BIT(port); mask = felix->tag_proto_ops->get_host_fwd_mask(ds); felix_set_host_flood(ds, mask, !!felix->host_flood_uc_mask, !!felix->host_flood_mc_mask, true); } static int felix_port_change_master(struct dsa_switch *ds, int port, struct net_device *master, struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); return felix->tag_proto_ops->change_master(ds, port, master, extack); } static int felix_set_ageing_time(struct dsa_switch *ds, unsigned int ageing_time) { struct ocelot *ocelot = ds->priv; ocelot_set_ageing_time(ocelot, ageing_time); return 0; } static void felix_port_fast_age(struct dsa_switch *ds, int port) { struct ocelot *ocelot = ds->priv; int err; err = ocelot_mact_flush(ocelot, port); if (err) dev_err(ds->dev, "Flushing MAC table on port %d returned %pe\n", port, ERR_PTR(err)); } static int felix_fdb_dump(struct dsa_switch *ds, int port, dsa_fdb_dump_cb_t *cb, void *data) { struct ocelot *ocelot = ds->priv; return ocelot_fdb_dump(ocelot, port, cb, data); } static int felix_fdb_add(struct dsa_switch *ds, int port, const unsigned char *addr, u16 vid, struct dsa_db db) { struct net_device *bridge_dev = felix_classify_db(db); struct dsa_port *dp = dsa_to_port(ds, port); struct ocelot *ocelot = ds->priv; if (IS_ERR(bridge_dev)) return PTR_ERR(bridge_dev); if (dsa_port_is_cpu(dp) && !bridge_dev && dsa_fdb_present_in_other_db(ds, port, addr, vid, db)) return 0; if (dsa_port_is_cpu(dp)) port = PGID_CPU; return ocelot_fdb_add(ocelot, port, addr, vid, bridge_dev); } static int felix_fdb_del(struct dsa_switch *ds, int port, const unsigned char *addr, u16 vid, struct dsa_db db) { struct net_device *bridge_dev = felix_classify_db(db); struct dsa_port *dp = dsa_to_port(ds, port); struct ocelot *ocelot = ds->priv; if (IS_ERR(bridge_dev)) return PTR_ERR(bridge_dev); if (dsa_port_is_cpu(dp) && !bridge_dev && dsa_fdb_present_in_other_db(ds, port, addr, vid, db)) return 0; if (dsa_port_is_cpu(dp)) port = PGID_CPU; return ocelot_fdb_del(ocelot, port, addr, vid, bridge_dev); } static int felix_lag_fdb_add(struct dsa_switch *ds, struct dsa_lag lag, const unsigned char *addr, u16 vid, struct dsa_db db) { struct net_device *bridge_dev = felix_classify_db(db); struct ocelot *ocelot = ds->priv; if (IS_ERR(bridge_dev)) return PTR_ERR(bridge_dev); return ocelot_lag_fdb_add(ocelot, lag.dev, addr, vid, bridge_dev); } static int felix_lag_fdb_del(struct dsa_switch *ds, struct dsa_lag lag, const unsigned char *addr, u16 vid, struct dsa_db db) { struct net_device *bridge_dev = felix_classify_db(db); struct ocelot *ocelot = ds->priv; if (IS_ERR(bridge_dev)) return PTR_ERR(bridge_dev); return ocelot_lag_fdb_del(ocelot, lag.dev, addr, vid, bridge_dev); } static int felix_mdb_add(struct dsa_switch *ds, int port, const struct switchdev_obj_port_mdb *mdb, struct dsa_db db) { struct net_device *bridge_dev = felix_classify_db(db); struct ocelot *ocelot = ds->priv; if (IS_ERR(bridge_dev)) return PTR_ERR(bridge_dev); if (dsa_is_cpu_port(ds, port) && !bridge_dev && dsa_mdb_present_in_other_db(ds, port, mdb, db)) return 0; if (port == ocelot->npi) port = ocelot->num_phys_ports; return ocelot_port_mdb_add(ocelot, port, mdb, bridge_dev); } static int felix_mdb_del(struct dsa_switch *ds, int port, const struct switchdev_obj_port_mdb *mdb, struct dsa_db db) { struct net_device *bridge_dev = felix_classify_db(db); struct ocelot *ocelot = ds->priv; if (IS_ERR(bridge_dev)) return PTR_ERR(bridge_dev); if (dsa_is_cpu_port(ds, port) && !bridge_dev && dsa_mdb_present_in_other_db(ds, port, mdb, db)) return 0; if (port == ocelot->npi) port = ocelot->num_phys_ports; return ocelot_port_mdb_del(ocelot, port, mdb, bridge_dev); } static void felix_bridge_stp_state_set(struct dsa_switch *ds, int port, u8 state) { struct ocelot *ocelot = ds->priv; return ocelot_bridge_stp_state_set(ocelot, port, state); } static int felix_pre_bridge_flags(struct dsa_switch *ds, int port, struct switchdev_brport_flags val, struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv; return ocelot_port_pre_bridge_flags(ocelot, port, val); } static int felix_bridge_flags(struct dsa_switch *ds, int port, struct switchdev_brport_flags val, struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv; if (port == ocelot->npi) port = ocelot->num_phys_ports; ocelot_port_bridge_flags(ocelot, port, val); return 0; } static int felix_bridge_join(struct dsa_switch *ds, int port, struct dsa_bridge bridge, bool *tx_fwd_offload, struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv; return ocelot_port_bridge_join(ocelot, port, bridge.dev, bridge.num, extack); } static void felix_bridge_leave(struct dsa_switch *ds, int port, struct dsa_bridge bridge) { struct ocelot *ocelot = ds->priv; ocelot_port_bridge_leave(ocelot, port, bridge.dev); } static int felix_lag_join(struct dsa_switch *ds, int port, struct dsa_lag lag, struct netdev_lag_upper_info *info, struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv; int err; err = ocelot_port_lag_join(ocelot, port, lag.dev, info, extack); if (err) return err; /* Update the logical LAG port that serves as tag_8021q CPU port */ if (!dsa_is_cpu_port(ds, port)) return 0; return felix_port_change_master(ds, port, lag.dev, extack); } static int felix_lag_leave(struct dsa_switch *ds, int port, struct dsa_lag lag) { struct ocelot *ocelot = ds->priv; ocelot_port_lag_leave(ocelot, port, lag.dev); /* Update the logical LAG port that serves as tag_8021q CPU port */ if (!dsa_is_cpu_port(ds, port)) return 0; return felix_port_change_master(ds, port, lag.dev, NULL); } static int felix_lag_change(struct dsa_switch *ds, int port) { struct dsa_port *dp = dsa_to_port(ds, port); struct ocelot *ocelot = ds->priv; ocelot_port_lag_change(ocelot, port, dp->lag_tx_enabled); return 0; } static int felix_vlan_prepare(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan, struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv; u16 flags = vlan->flags; /* Ocelot switches copy frames as-is to the CPU, so the flags: * egress-untagged or not, pvid or not, make no difference. This * behavior is already better than what DSA just tries to approximate * when it installs the VLAN with the same flags on the CPU port. * Just accept any configuration, and don't let ocelot deny installing * multiple native VLANs on the NPI port, because the switch doesn't * look at the port tag settings towards the NPI interface anyway. */ if (port == ocelot->npi) return 0; return ocelot_vlan_prepare(ocelot, port, vlan->vid, flags & BRIDGE_VLAN_INFO_PVID, flags & BRIDGE_VLAN_INFO_UNTAGGED, extack); } static int felix_vlan_filtering(struct dsa_switch *ds, int port, bool enabled, struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv; return ocelot_port_vlan_filtering(ocelot, port, enabled, extack); } static int felix_vlan_add(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan, struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv; u16 flags = vlan->flags; int err; err = felix_vlan_prepare(ds, port, vlan, extack); if (err) return err; return ocelot_vlan_add(ocelot, port, vlan->vid, flags & BRIDGE_VLAN_INFO_PVID, flags & BRIDGE_VLAN_INFO_UNTAGGED); } static int felix_vlan_del(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan) { struct ocelot *ocelot = ds->priv; return ocelot_vlan_del(ocelot, port, vlan->vid); } static void felix_phylink_get_caps(struct dsa_switch *ds, int port, struct phylink_config *config) { struct ocelot *ocelot = ds->priv; /* This driver does not make use of the speed, duplex, pause or the * advertisement in its mac_config, so it is safe to mark this driver * as non-legacy. */ config->legacy_pre_march2020 = false; config->mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | MAC_10 | MAC_100 | MAC_1000FD | MAC_2500FD; __set_bit(ocelot->ports[port]->phy_mode, config->supported_interfaces); } static struct phylink_pcs *felix_phylink_mac_select_pcs(struct dsa_switch *ds, int port, phy_interface_t iface) { struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); struct phylink_pcs *pcs = NULL; if (felix->pcs && felix->pcs[port]) pcs = felix->pcs[port]; return pcs; } static void felix_phylink_mac_link_down(struct dsa_switch *ds, int port, unsigned int link_an_mode, phy_interface_t interface) { struct ocelot *ocelot = ds->priv; ocelot_phylink_mac_link_down(ocelot, port, link_an_mode, interface, FELIX_MAC_QUIRKS); } static void felix_phylink_mac_link_up(struct dsa_switch *ds, int port, unsigned int link_an_mode, phy_interface_t interface, struct phy_device *phydev, int speed, int duplex, bool tx_pause, bool rx_pause) { struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); ocelot_phylink_mac_link_up(ocelot, port, phydev, link_an_mode, interface, speed, duplex, tx_pause, rx_pause, FELIX_MAC_QUIRKS); if (felix->info->port_sched_speed_set) felix->info->port_sched_speed_set(ocelot, port, speed); } static int felix_port_enable(struct dsa_switch *ds, int port, struct phy_device *phydev) { struct dsa_port *dp = dsa_to_port(ds, port); struct ocelot *ocelot = ds->priv; if (!dsa_port_is_user(dp)) return 0; if (ocelot->npi >= 0) { struct net_device *master = dsa_port_to_master(dp); if (felix_cpu_port_for_master(ds, master) != ocelot->npi) { dev_err(ds->dev, "Multiple masters are not allowed\n"); return -EINVAL; } } return 0; } static void felix_port_qos_map_init(struct ocelot *ocelot, int port) { int i; ocelot_rmw_gix(ocelot, ANA_PORT_QOS_CFG_QOS_PCP_ENA, ANA_PORT_QOS_CFG_QOS_PCP_ENA, ANA_PORT_QOS_CFG, port); for (i = 0; i < OCELOT_NUM_TC * 2; i++) { ocelot_rmw_ix(ocelot, (ANA_PORT_PCP_DEI_MAP_DP_PCP_DEI_VAL & i) | ANA_PORT_PCP_DEI_MAP_QOS_PCP_DEI_VAL(i), ANA_PORT_PCP_DEI_MAP_DP_PCP_DEI_VAL | ANA_PORT_PCP_DEI_MAP_QOS_PCP_DEI_VAL_M, ANA_PORT_PCP_DEI_MAP, port, i); } } static void felix_get_stats64(struct dsa_switch *ds, int port, struct rtnl_link_stats64 *stats) { struct ocelot *ocelot = ds->priv; ocelot_port_get_stats64(ocelot, port, stats); } static void felix_get_pause_stats(struct dsa_switch *ds, int port, struct ethtool_pause_stats *pause_stats) { struct ocelot *ocelot = ds->priv; ocelot_port_get_pause_stats(ocelot, port, pause_stats); } static void felix_get_rmon_stats(struct dsa_switch *ds, int port, struct ethtool_rmon_stats *rmon_stats, const struct ethtool_rmon_hist_range **ranges) { struct ocelot *ocelot = ds->priv; ocelot_port_get_rmon_stats(ocelot, port, rmon_stats, ranges); } static void felix_get_eth_ctrl_stats(struct dsa_switch *ds, int port, struct ethtool_eth_ctrl_stats *ctrl_stats) { struct ocelot *ocelot = ds->priv; ocelot_port_get_eth_ctrl_stats(ocelot, port, ctrl_stats); } static void felix_get_eth_mac_stats(struct dsa_switch *ds, int port, struct ethtool_eth_mac_stats *mac_stats) { struct ocelot *ocelot = ds->priv; ocelot_port_get_eth_mac_stats(ocelot, port, mac_stats); } static void felix_get_eth_phy_stats(struct dsa_switch *ds, int port, struct ethtool_eth_phy_stats *phy_stats) { struct ocelot *ocelot = ds->priv; ocelot_port_get_eth_phy_stats(ocelot, port, phy_stats); } static void felix_get_strings(struct dsa_switch *ds, int port, u32 stringset, u8 *data) { struct ocelot *ocelot = ds->priv; return ocelot_get_strings(ocelot, port, stringset, data); } static void felix_get_ethtool_stats(struct dsa_switch *ds, int port, u64 *data) { struct ocelot *ocelot = ds->priv; ocelot_get_ethtool_stats(ocelot, port, data); } static int felix_get_sset_count(struct dsa_switch *ds, int port, int sset) { struct ocelot *ocelot = ds->priv; return ocelot_get_sset_count(ocelot, port, sset); } static int felix_get_ts_info(struct dsa_switch *ds, int port, struct ethtool_ts_info *info) { struct ocelot *ocelot = ds->priv; return ocelot_get_ts_info(ocelot, port, info); } static const u32 felix_phy_match_table[PHY_INTERFACE_MODE_MAX] = { [PHY_INTERFACE_MODE_INTERNAL] = OCELOT_PORT_MODE_INTERNAL, [PHY_INTERFACE_MODE_SGMII] = OCELOT_PORT_MODE_SGMII, [PHY_INTERFACE_MODE_QSGMII] = OCELOT_PORT_MODE_QSGMII, [PHY_INTERFACE_MODE_USXGMII] = OCELOT_PORT_MODE_USXGMII, [PHY_INTERFACE_MODE_1000BASEX] = OCELOT_PORT_MODE_1000BASEX, [PHY_INTERFACE_MODE_2500BASEX] = OCELOT_PORT_MODE_2500BASEX, }; static int felix_validate_phy_mode(struct felix *felix, int port, phy_interface_t phy_mode) { u32 modes = felix->info->port_modes[port]; if (felix_phy_match_table[phy_mode] & modes) return 0; return -EOPNOTSUPP; } static int felix_parse_ports_node(struct felix *felix, struct device_node *ports_node, phy_interface_t *port_phy_modes) { struct device *dev = felix->ocelot.dev; struct device_node *child; for_each_available_child_of_node(ports_node, child) { phy_interface_t phy_mode; u32 port; int err; /* Get switch port number from DT */ if (of_property_read_u32(child, "reg", &port) < 0) { dev_err(dev, "Port number not defined in device tree " "(property \"reg\")\n"); of_node_put(child); return -ENODEV; } /* Get PHY mode from DT */ err = of_get_phy_mode(child, &phy_mode); if (err) { dev_err(dev, "Failed to read phy-mode or " "phy-interface-type property for port %d\n", port); of_node_put(child); return -ENODEV; } err = felix_validate_phy_mode(felix, port, phy_mode); if (err < 0) { dev_err(dev, "Unsupported PHY mode %s on port %d\n", phy_modes(phy_mode), port); of_node_put(child); return err; } port_phy_modes[port] = phy_mode; } return 0; } static int felix_parse_dt(struct felix *felix, phy_interface_t *port_phy_modes) { struct device *dev = felix->ocelot.dev; struct device_node *switch_node; struct device_node *ports_node; int err; switch_node = dev->of_node; ports_node = of_get_child_by_name(switch_node, "ports"); if (!ports_node) ports_node = of_get_child_by_name(switch_node, "ethernet-ports"); if (!ports_node) { dev_err(dev, "Incorrect bindings: absent \"ports\" or \"ethernet-ports\" node\n"); return -ENODEV; } err = felix_parse_ports_node(felix, ports_node, port_phy_modes); of_node_put(ports_node); return err; } static struct regmap *felix_request_regmap_by_name(struct felix *felix, const char *resource_name) { struct ocelot *ocelot = &felix->ocelot; struct resource res; int i; for (i = 0; i < felix->info->num_resources; i++) { if (strcmp(resource_name, felix->info->resources[i].name)) continue; memcpy(&res, &felix->info->resources[i], sizeof(res)); res.start += felix->switch_base; res.end += felix->switch_base; return ocelot_regmap_init(ocelot, &res); } return ERR_PTR(-ENOENT); } static struct regmap *felix_request_regmap(struct felix *felix, enum ocelot_target target) { const char *resource_name = felix->info->resource_names[target]; /* If the driver didn't provide a resource name for the target, * the resource is optional. */ if (!resource_name) return NULL; return felix_request_regmap_by_name(felix, resource_name); } static struct regmap *felix_request_port_regmap(struct felix *felix, int port) { char resource_name[32]; sprintf(resource_name, "port%d", port); return felix_request_regmap_by_name(felix, resource_name); } static int felix_init_structs(struct felix *felix, int num_phys_ports) { struct ocelot *ocelot = &felix->ocelot; phy_interface_t *port_phy_modes; struct regmap *target; int port, i, err; ocelot->num_phys_ports = num_phys_ports; ocelot->ports = devm_kcalloc(ocelot->dev, num_phys_ports, sizeof(struct ocelot_port *), GFP_KERNEL); if (!ocelot->ports) return -ENOMEM; ocelot->map = felix->info->map; ocelot->num_mact_rows = felix->info->num_mact_rows; ocelot->vcap = felix->info->vcap; ocelot->vcap_pol.base = felix->info->vcap_pol_base; ocelot->vcap_pol.max = felix->info->vcap_pol_max; ocelot->vcap_pol.base2 = felix->info->vcap_pol_base2; ocelot->vcap_pol.max2 = felix->info->vcap_pol_max2; ocelot->ops = felix->info->ops; ocelot->npi_inj_prefix = OCELOT_TAG_PREFIX_SHORT; ocelot->npi_xtr_prefix = OCELOT_TAG_PREFIX_SHORT; ocelot->devlink = felix->ds->devlink; port_phy_modes = kcalloc(num_phys_ports, sizeof(phy_interface_t), GFP_KERNEL); if (!port_phy_modes) return -ENOMEM; err = felix_parse_dt(felix, port_phy_modes); if (err) { kfree(port_phy_modes); return err; } for (i = 0; i < TARGET_MAX; i++) { target = felix_request_regmap(felix, i); if (IS_ERR(target)) { dev_err(ocelot->dev, "Failed to map device memory space: %pe\n", target); kfree(port_phy_modes); return PTR_ERR(target); } ocelot->targets[i] = target; } err = ocelot_regfields_init(ocelot, felix->info->regfields); if (err) { dev_err(ocelot->dev, "failed to init reg fields map\n"); kfree(port_phy_modes); return err; } for (port = 0; port < num_phys_ports; port++) { struct ocelot_port *ocelot_port; ocelot_port = devm_kzalloc(ocelot->dev, sizeof(struct ocelot_port), GFP_KERNEL); if (!ocelot_port) { dev_err(ocelot->dev, "failed to allocate port memory\n"); kfree(port_phy_modes); return -ENOMEM; } target = felix_request_port_regmap(felix, port); if (IS_ERR(target)) { dev_err(ocelot->dev, "Failed to map memory space for port %d: %pe\n", port, target); kfree(port_phy_modes); return PTR_ERR(target); } ocelot_port->phy_mode = port_phy_modes[port]; ocelot_port->ocelot = ocelot; ocelot_port->target = target; ocelot_port->index = port; ocelot->ports[port] = ocelot_port; } kfree(port_phy_modes); if (felix->info->mdio_bus_alloc) { err = felix->info->mdio_bus_alloc(ocelot); if (err < 0) return err; } return 0; } static void ocelot_port_purge_txtstamp_skb(struct ocelot *ocelot, int port, struct sk_buff *skb) { struct ocelot_port *ocelot_port = ocelot->ports[port]; struct sk_buff *clone = OCELOT_SKB_CB(skb)->clone; struct sk_buff *skb_match = NULL, *skb_tmp; unsigned long flags; if (!clone) return; spin_lock_irqsave(&ocelot_port->tx_skbs.lock, flags); skb_queue_walk_safe(&ocelot_port->tx_skbs, skb, skb_tmp) { if (skb != clone) continue; __skb_unlink(skb, &ocelot_port->tx_skbs); skb_match = skb; break; } spin_unlock_irqrestore(&ocelot_port->tx_skbs.lock, flags); WARN_ONCE(!skb_match, "Could not find skb clone in TX timestamping list\n"); } #define work_to_xmit_work(w) \ container_of((w), struct felix_deferred_xmit_work, work) static void felix_port_deferred_xmit(struct kthread_work *work) { struct felix_deferred_xmit_work *xmit_work = work_to_xmit_work(work); struct dsa_switch *ds = xmit_work->dp->ds; struct sk_buff *skb = xmit_work->skb; u32 rew_op = ocelot_ptp_rew_op(skb); struct ocelot *ocelot = ds->priv; int port = xmit_work->dp->index; int retries = 10; do { if (ocelot_can_inject(ocelot, 0)) break; cpu_relax(); } while (--retries); if (!retries) { dev_err(ocelot->dev, "port %d failed to inject skb\n", port); ocelot_port_purge_txtstamp_skb(ocelot, port, skb); kfree_skb(skb); return; } ocelot_port_inject_frame(ocelot, port, 0, rew_op, skb); consume_skb(skb); kfree(xmit_work); } static int felix_connect_tag_protocol(struct dsa_switch *ds, enum dsa_tag_protocol proto) { struct ocelot_8021q_tagger_data *tagger_data; switch (proto) { case DSA_TAG_PROTO_OCELOT_8021Q: tagger_data = ocelot_8021q_tagger_data(ds); tagger_data->xmit_work_fn = felix_port_deferred_xmit; return 0; case DSA_TAG_PROTO_OCELOT: case DSA_TAG_PROTO_SEVILLE: return 0; default: return -EPROTONOSUPPORT; } } /* Hardware initialization done here so that we can allocate structures with * devm without fear of dsa_register_switch returning -EPROBE_DEFER and causing * us to allocate structures twice (leak memory) and map PCI memory twice * (which will not work). */ static int felix_setup(struct dsa_switch *ds) { struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); struct dsa_port *dp; int err; err = felix_init_structs(felix, ds->num_ports); if (err) return err; err = ocelot_init(ocelot); if (err) goto out_mdiobus_free; if (ocelot->ptp) { err = ocelot_init_timestamp(ocelot, felix->info->ptp_caps); if (err) { dev_err(ocelot->dev, "Timestamp initialization failed\n"); ocelot->ptp = 0; } } dsa_switch_for_each_available_port(dp, ds) { ocelot_init_port(ocelot, dp->index); /* Set the default QoS Classification based on PCP and DEI * bits of vlan tag. */ felix_port_qos_map_init(ocelot, dp->index); } err = ocelot_devlink_sb_register(ocelot); if (err) goto out_deinit_ports; /* The initial tag protocol is NPI which won't fail during initial * setup, there's no real point in checking for errors. */ felix_change_tag_protocol(ds, felix->tag_proto); ds->mtu_enforcement_ingress = true; ds->assisted_learning_on_cpu_port = true; ds->fdb_isolation = true; ds->max_num_bridges = ds->num_ports; return 0; out_deinit_ports: dsa_switch_for_each_available_port(dp, ds) ocelot_deinit_port(ocelot, dp->index); ocelot_deinit_timestamp(ocelot); ocelot_deinit(ocelot); out_mdiobus_free: if (felix->info->mdio_bus_free) felix->info->mdio_bus_free(ocelot); return err; } static void felix_teardown(struct dsa_switch *ds) { struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); struct dsa_port *dp; if (felix->tag_proto_ops) felix->tag_proto_ops->teardown(ds); dsa_switch_for_each_available_port(dp, ds) ocelot_deinit_port(ocelot, dp->index); ocelot_devlink_sb_unregister(ocelot); ocelot_deinit_timestamp(ocelot); ocelot_deinit(ocelot); if (felix->info->mdio_bus_free) felix->info->mdio_bus_free(ocelot); } static int felix_hwtstamp_get(struct dsa_switch *ds, int port, struct ifreq *ifr) { struct ocelot *ocelot = ds->priv; return ocelot_hwstamp_get(ocelot, port, ifr); } static int felix_hwtstamp_set(struct dsa_switch *ds, int port, struct ifreq *ifr) { struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); bool using_tag_8021q; int err; err = ocelot_hwstamp_set(ocelot, port, ifr); if (err) return err; using_tag_8021q = felix->tag_proto == DSA_TAG_PROTO_OCELOT_8021Q; return felix_update_trapping_destinations(ds, using_tag_8021q); } static bool felix_check_xtr_pkt(struct ocelot *ocelot) { struct felix *felix = ocelot_to_felix(ocelot); int err = 0, grp = 0; if (felix->tag_proto != DSA_TAG_PROTO_OCELOT_8021Q) return false; if (!felix->info->quirk_no_xtr_irq) return false; while (ocelot_read(ocelot, QS_XTR_DATA_PRESENT) & BIT(grp)) { struct sk_buff *skb; unsigned int type; err = ocelot_xtr_poll_frame(ocelot, grp, &skb); if (err) goto out; /* We trap to the CPU port module all PTP frames, but * felix_rxtstamp() only gets called for event frames. * So we need to avoid sending duplicate general * message frames by running a second BPF classifier * here and dropping those. */ __skb_push(skb, ETH_HLEN); type = ptp_classify_raw(skb); __skb_pull(skb, ETH_HLEN); if (type == PTP_CLASS_NONE) { kfree_skb(skb); continue; } netif_rx(skb); } out: if (err < 0) { dev_err_ratelimited(ocelot->dev, "Error during packet extraction: %pe\n", ERR_PTR(err)); ocelot_drain_cpu_queue(ocelot, 0); } return true; } static bool felix_rxtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb, unsigned int type) { u32 tstamp_lo = OCELOT_SKB_CB(skb)->tstamp_lo; struct skb_shared_hwtstamps *shhwtstamps; struct ocelot *ocelot = ds->priv; struct timespec64 ts; u32 tstamp_hi; u64 tstamp; /* If the "no XTR IRQ" workaround is in use, tell DSA to defer this skb * for RX timestamping. Then free it, and poll for its copy through * MMIO in the CPU port module, and inject that into the stack from * ocelot_xtr_poll(). */ if (felix_check_xtr_pkt(ocelot)) { kfree_skb(skb); return true; } ocelot_ptp_gettime64(&ocelot->ptp_info, &ts); tstamp = ktime_set(ts.tv_sec, ts.tv_nsec); tstamp_hi = tstamp >> 32; if ((tstamp & 0xffffffff) < tstamp_lo) tstamp_hi--; tstamp = ((u64)tstamp_hi << 32) | tstamp_lo; shhwtstamps = skb_hwtstamps(skb); memset(shhwtstamps, 0, sizeof(struct skb_shared_hwtstamps)); shhwtstamps->hwtstamp = tstamp; return false; } static void felix_txtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb) { struct ocelot *ocelot = ds->priv; struct sk_buff *clone = NULL; if (!ocelot->ptp) return; if (ocelot_port_txtstamp_request(ocelot, port, skb, &clone)) { dev_err_ratelimited(ds->dev, "port %d delivering skb without TX timestamp\n", port); return; } if (clone) OCELOT_SKB_CB(skb)->clone = clone; } static int felix_change_mtu(struct dsa_switch *ds, int port, int new_mtu) { struct ocelot *ocelot = ds->priv; struct ocelot_port *ocelot_port = ocelot->ports[port]; struct felix *felix = ocelot_to_felix(ocelot); ocelot_port_set_maxlen(ocelot, port, new_mtu); mutex_lock(&ocelot->tas_lock); if (ocelot_port->taprio && felix->info->tas_guard_bands_update) felix->info->tas_guard_bands_update(ocelot, port); mutex_unlock(&ocelot->tas_lock); return 0; } static int felix_get_max_mtu(struct dsa_switch *ds, int port) { struct ocelot *ocelot = ds->priv; return ocelot_get_max_mtu(ocelot, port); } static int felix_cls_flower_add(struct dsa_switch *ds, int port, struct flow_cls_offload *cls, bool ingress) { struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); bool using_tag_8021q; int err; err = ocelot_cls_flower_replace(ocelot, port, cls, ingress); if (err) return err; using_tag_8021q = felix->tag_proto == DSA_TAG_PROTO_OCELOT_8021Q; return felix_update_trapping_destinations(ds, using_tag_8021q); } static int felix_cls_flower_del(struct dsa_switch *ds, int port, struct flow_cls_offload *cls, bool ingress) { struct ocelot *ocelot = ds->priv; return ocelot_cls_flower_destroy(ocelot, port, cls, ingress); } static int felix_cls_flower_stats(struct dsa_switch *ds, int port, struct flow_cls_offload *cls, bool ingress) { struct ocelot *ocelot = ds->priv; return ocelot_cls_flower_stats(ocelot, port, cls, ingress); } static int felix_port_policer_add(struct dsa_switch *ds, int port, struct dsa_mall_policer_tc_entry *policer) { struct ocelot *ocelot = ds->priv; struct ocelot_policer pol = { .rate = div_u64(policer->rate_bytes_per_sec, 1000) * 8, .burst = policer->burst, }; return ocelot_port_policer_add(ocelot, port, &pol); } static void felix_port_policer_del(struct dsa_switch *ds, int port) { struct ocelot *ocelot = ds->priv; ocelot_port_policer_del(ocelot, port); } static int felix_port_mirror_add(struct dsa_switch *ds, int port, struct dsa_mall_mirror_tc_entry *mirror, bool ingress, struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv; return ocelot_port_mirror_add(ocelot, port, mirror->to_local_port, ingress, extack); } static void felix_port_mirror_del(struct dsa_switch *ds, int port, struct dsa_mall_mirror_tc_entry *mirror) { struct ocelot *ocelot = ds->priv; ocelot_port_mirror_del(ocelot, port, mirror->ingress); } static int felix_port_setup_tc(struct dsa_switch *ds, int port, enum tc_setup_type type, void *type_data) { struct ocelot *ocelot = ds->priv; struct felix *felix = ocelot_to_felix(ocelot); if (felix->info->port_setup_tc) return felix->info->port_setup_tc(ds, port, type, type_data); else return -EOPNOTSUPP; } static int felix_sb_pool_get(struct dsa_switch *ds, unsigned int sb_index, u16 pool_index, struct devlink_sb_pool_info *pool_info) { struct ocelot *ocelot = ds->priv; return ocelot_sb_pool_get(ocelot, sb_index, pool_index, pool_info); } static int felix_sb_pool_set(struct dsa_switch *ds, unsigned int sb_index, u16 pool_index, u32 size, enum devlink_sb_threshold_type threshold_type, struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv; return ocelot_sb_pool_set(ocelot, sb_index, pool_index, size, threshold_type, extack); } static int felix_sb_port_pool_get(struct dsa_switch *ds, int port, unsigned int sb_index, u16 pool_index, u32 *p_threshold) { struct ocelot *ocelot = ds->priv; return ocelot_sb_port_pool_get(ocelot, port, sb_index, pool_index, p_threshold); } static int felix_sb_port_pool_set(struct dsa_switch *ds, int port, unsigned int sb_index, u16 pool_index, u32 threshold, struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv; return ocelot_sb_port_pool_set(ocelot, port, sb_index, pool_index, threshold, extack); } static int felix_sb_tc_pool_bind_get(struct dsa_switch *ds, int port, unsigned int sb_index, u16 tc_index, enum devlink_sb_pool_type pool_type, u16 *p_pool_index, u32 *p_threshold) { struct ocelot *ocelot = ds->priv; return ocelot_sb_tc_pool_bind_get(ocelot, port, sb_index, tc_index, pool_type, p_pool_index, p_threshold); } static int felix_sb_tc_pool_bind_set(struct dsa_switch *ds, int port, unsigned int sb_index, u16 tc_index, enum devlink_sb_pool_type pool_type, u16 pool_index, u32 threshold, struct netlink_ext_ack *extack) { struct ocelot *ocelot = ds->priv; return ocelot_sb_tc_pool_bind_set(ocelot, port, sb_index, tc_index, pool_type, pool_index, threshold, extack); } static int felix_sb_occ_snapshot(struct dsa_switch *ds, unsigned int sb_index) { struct ocelot *ocelot = ds->priv; return ocelot_sb_occ_snapshot(ocelot, sb_index); } static int felix_sb_occ_max_clear(struct dsa_switch *ds, unsigned int sb_index) { struct ocelot *ocelot = ds->priv; return ocelot_sb_occ_max_clear(ocelot, sb_index); } static int felix_sb_occ_port_pool_get(struct dsa_switch *ds, int port, unsigned int sb_index, u16 pool_index, u32 *p_cur, u32 *p_max) { struct ocelot *ocelot = ds->priv; return ocelot_sb_occ_port_pool_get(ocelot, port, sb_index, pool_index, p_cur, p_max); } static int felix_sb_occ_tc_port_bind_get(struct dsa_switch *ds, int port, unsigned int sb_index, u16 tc_index, enum devlink_sb_pool_type pool_type, u32 *p_cur, u32 *p_max) { struct ocelot *ocelot = ds->priv; return ocelot_sb_occ_tc_port_bind_get(ocelot, port, sb_index, tc_index, pool_type, p_cur, p_max); } static int felix_mrp_add(struct dsa_switch *ds, int port, const struct switchdev_obj_mrp *mrp) { struct ocelot *ocelot = ds->priv; return ocelot_mrp_add(ocelot, port, mrp); } static int felix_mrp_del(struct dsa_switch *ds, int port, const struct switchdev_obj_mrp *mrp) { struct ocelot *ocelot = ds->priv; return ocelot_mrp_add(ocelot, port, mrp); } static int felix_mrp_add_ring_role(struct dsa_switch *ds, int port, const struct switchdev_obj_ring_role_mrp *mrp) { struct ocelot *ocelot = ds->priv; return ocelot_mrp_add_ring_role(ocelot, port, mrp); } static int felix_mrp_del_ring_role(struct dsa_switch *ds, int port, const struct switchdev_obj_ring_role_mrp *mrp) { struct ocelot *ocelot = ds->priv; return ocelot_mrp_del_ring_role(ocelot, port, mrp); } static int felix_port_get_default_prio(struct dsa_switch *ds, int port) { struct ocelot *ocelot = ds->priv; return ocelot_port_get_default_prio(ocelot, port); } static int felix_port_set_default_prio(struct dsa_switch *ds, int port, u8 prio) { struct ocelot *ocelot = ds->priv; return ocelot_port_set_default_prio(ocelot, port, prio); } static int felix_port_get_dscp_prio(struct dsa_switch *ds, int port, u8 dscp) { struct ocelot *ocelot = ds->priv; return ocelot_port_get_dscp_prio(ocelot, port, dscp); } static int felix_port_add_dscp_prio(struct dsa_switch *ds, int port, u8 dscp, u8 prio) { struct ocelot *ocelot = ds->priv; return ocelot_port_add_dscp_prio(ocelot, port, dscp, prio); } static int felix_port_del_dscp_prio(struct dsa_switch *ds, int port, u8 dscp, u8 prio) { struct ocelot *ocelot = ds->priv; return ocelot_port_del_dscp_prio(ocelot, port, dscp, prio); } const struct dsa_switch_ops felix_switch_ops = { .get_tag_protocol = felix_get_tag_protocol, .change_tag_protocol = felix_change_tag_protocol, .connect_tag_protocol = felix_connect_tag_protocol, .setup = felix_setup, .teardown = felix_teardown, .set_ageing_time = felix_set_ageing_time, .get_stats64 = felix_get_stats64, .get_pause_stats = felix_get_pause_stats, .get_rmon_stats = felix_get_rmon_stats, .get_eth_ctrl_stats = felix_get_eth_ctrl_stats, .get_eth_mac_stats = felix_get_eth_mac_stats, .get_eth_phy_stats = felix_get_eth_phy_stats, .get_strings = felix_get_strings, .get_ethtool_stats = felix_get_ethtool_stats, .get_sset_count = felix_get_sset_count, .get_ts_info = felix_get_ts_info, .phylink_get_caps = felix_phylink_get_caps, .phylink_mac_select_pcs = felix_phylink_mac_select_pcs, .phylink_mac_link_down = felix_phylink_mac_link_down, .phylink_mac_link_up = felix_phylink_mac_link_up, .port_enable = felix_port_enable, .port_fast_age = felix_port_fast_age, .port_fdb_dump = felix_fdb_dump, .port_fdb_add = felix_fdb_add, .port_fdb_del = felix_fdb_del, .lag_fdb_add = felix_lag_fdb_add, .lag_fdb_del = felix_lag_fdb_del, .port_mdb_add = felix_mdb_add, .port_mdb_del = felix_mdb_del, .port_pre_bridge_flags = felix_pre_bridge_flags, .port_bridge_flags = felix_bridge_flags, .port_bridge_join = felix_bridge_join, .port_bridge_leave = felix_bridge_leave, .port_lag_join = felix_lag_join, .port_lag_leave = felix_lag_leave, .port_lag_change = felix_lag_change, .port_stp_state_set = felix_bridge_stp_state_set, .port_vlan_filtering = felix_vlan_filtering, .port_vlan_add = felix_vlan_add, .port_vlan_del = felix_vlan_del, .port_hwtstamp_get = felix_hwtstamp_get, .port_hwtstamp_set = felix_hwtstamp_set, .port_rxtstamp = felix_rxtstamp, .port_txtstamp = felix_txtstamp, .port_change_mtu = felix_change_mtu, .port_max_mtu = felix_get_max_mtu, .port_policer_add = felix_port_policer_add, .port_policer_del = felix_port_policer_del, .port_mirror_add = felix_port_mirror_add, .port_mirror_del = felix_port_mirror_del, .cls_flower_add = felix_cls_flower_add, .cls_flower_del = felix_cls_flower_del, .cls_flower_stats = felix_cls_flower_stats, .port_setup_tc = felix_port_setup_tc, .devlink_sb_pool_get = felix_sb_pool_get, .devlink_sb_pool_set = felix_sb_pool_set, .devlink_sb_port_pool_get = felix_sb_port_pool_get, .devlink_sb_port_pool_set = felix_sb_port_pool_set, .devlink_sb_tc_pool_bind_get = felix_sb_tc_pool_bind_get, .devlink_sb_tc_pool_bind_set = felix_sb_tc_pool_bind_set, .devlink_sb_occ_snapshot = felix_sb_occ_snapshot, .devlink_sb_occ_max_clear = felix_sb_occ_max_clear, .devlink_sb_occ_port_pool_get = felix_sb_occ_port_pool_get, .devlink_sb_occ_tc_port_bind_get= felix_sb_occ_tc_port_bind_get, .port_mrp_add = felix_mrp_add, .port_mrp_del = felix_mrp_del, .port_mrp_add_ring_role = felix_mrp_add_ring_role, .port_mrp_del_ring_role = felix_mrp_del_ring_role, .tag_8021q_vlan_add = felix_tag_8021q_vlan_add, .tag_8021q_vlan_del = felix_tag_8021q_vlan_del, .port_get_default_prio = felix_port_get_default_prio, .port_set_default_prio = felix_port_set_default_prio, .port_get_dscp_prio = felix_port_get_dscp_prio, .port_add_dscp_prio = felix_port_add_dscp_prio, .port_del_dscp_prio = felix_port_del_dscp_prio, .port_set_host_flood = felix_port_set_host_flood, .port_change_master = felix_port_change_master, }; struct net_device *felix_port_to_netdev(struct ocelot *ocelot, int port) { struct felix *felix = ocelot_to_felix(ocelot); struct dsa_switch *ds = felix->ds; if (!dsa_is_user_port(ds, port)) return NULL; return dsa_to_port(ds, port)->slave; } int felix_netdev_to_port(struct net_device *dev) { struct dsa_port *dp; dp = dsa_port_from_netdev(dev); if (IS_ERR(dp)) return -EINVAL; return dp->index; }
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