| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ido Schimmel | 7198 | 86.20% | 37 | 63.79% |
| Jiri Pirko | 778 | 9.32% | 10 | 17.24% |
| Amit Cohen | 259 | 3.10% | 8 | 13.79% |
| Petr Machata | 112 | 1.34% | 2 | 3.45% |
| Colin Ian King | 3 | 0.04% | 1 | 1.72% |
| Total | 8350 | 58 |
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 /* Copyright (c) 2019 Mellanox Technologies. All rights reserved */ #include <linux/bitops.h> #include <linux/kernel.h> #include <linux/netlink.h> #include <net/devlink.h> #include <uapi/linux/devlink.h> #include "core.h" #include "reg.h" #include "spectrum.h" #include "spectrum_trap.h" struct mlxsw_sp_trap_policer_item { struct devlink_trap_policer policer; u16 hw_id; }; struct mlxsw_sp_trap_group_item { struct devlink_trap_group group; u16 hw_group_id; u8 priority; u8 fixed_policer:1; /* Whether policer binding can change */ }; #define MLXSW_SP_TRAP_LISTENERS_MAX 3 struct mlxsw_sp_trap_item { struct devlink_trap trap; struct mlxsw_listener listeners_arr[MLXSW_SP_TRAP_LISTENERS_MAX]; u8 is_source:1; }; /* All driver-specific traps must be documented in * Documentation/networking/devlink/mlxsw.rst */ enum { DEVLINK_MLXSW_TRAP_ID_BASE = DEVLINK_TRAP_GENERIC_ID_MAX, DEVLINK_MLXSW_TRAP_ID_IRIF_DISABLED, DEVLINK_MLXSW_TRAP_ID_ERIF_DISABLED, }; #define DEVLINK_MLXSW_TRAP_NAME_IRIF_DISABLED \ "irif_disabled" #define DEVLINK_MLXSW_TRAP_NAME_ERIF_DISABLED \ "erif_disabled" #define MLXSW_SP_TRAP_METADATA DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT enum { /* Packet was mirrored from ingress. */ MLXSW_SP_MIRROR_REASON_INGRESS = 1, /* Packet was mirrored from policy engine. */ MLXSW_SP_MIRROR_REASON_POLICY_ENGINE = 2, /* Packet was early dropped. */ MLXSW_SP_MIRROR_REASON_INGRESS_WRED = 9, /* Packet was mirrored from egress. */ MLXSW_SP_MIRROR_REASON_EGRESS = 14, }; static int mlxsw_sp_rx_listener(struct mlxsw_sp *mlxsw_sp, struct sk_buff *skb, u16 local_port, struct mlxsw_sp_port *mlxsw_sp_port) { struct mlxsw_sp_port_pcpu_stats *pcpu_stats; if (unlikely(!mlxsw_sp_port)) { dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n", local_port); kfree_skb(skb); return -EINVAL; } skb->dev = mlxsw_sp_port->dev; pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats); u64_stats_update_begin(&pcpu_stats->syncp); pcpu_stats->rx_packets++; pcpu_stats->rx_bytes += skb->len; u64_stats_update_end(&pcpu_stats->syncp); skb->protocol = eth_type_trans(skb, skb->dev); return 0; } static void mlxsw_sp_rx_drop_listener(struct sk_buff *skb, u16 local_port, void *trap_ctx) { struct devlink_port *in_devlink_port; struct mlxsw_sp_port *mlxsw_sp_port; struct mlxsw_sp *mlxsw_sp; struct devlink *devlink; int err; mlxsw_sp = devlink_trap_ctx_priv(trap_ctx); mlxsw_sp_port = mlxsw_sp->ports[local_port]; err = mlxsw_sp_rx_listener(mlxsw_sp, skb, local_port, mlxsw_sp_port); if (err) return; devlink = priv_to_devlink(mlxsw_sp->core); in_devlink_port = mlxsw_core_port_devlink_port_get(mlxsw_sp->core, local_port); skb_push(skb, ETH_HLEN); devlink_trap_report(devlink, skb, trap_ctx, in_devlink_port, NULL); consume_skb(skb); } static void mlxsw_sp_rx_acl_drop_listener(struct sk_buff *skb, u16 local_port, void *trap_ctx) { u32 cookie_index = mlxsw_skb_cb(skb)->rx_md_info.cookie_index; const struct flow_action_cookie *fa_cookie; struct devlink_port *in_devlink_port; struct mlxsw_sp_port *mlxsw_sp_port; struct mlxsw_sp *mlxsw_sp; struct devlink *devlink; int err; mlxsw_sp = devlink_trap_ctx_priv(trap_ctx); mlxsw_sp_port = mlxsw_sp->ports[local_port]; err = mlxsw_sp_rx_listener(mlxsw_sp, skb, local_port, mlxsw_sp_port); if (err) return; devlink = priv_to_devlink(mlxsw_sp->core); in_devlink_port = mlxsw_core_port_devlink_port_get(mlxsw_sp->core, local_port); skb_push(skb, ETH_HLEN); rcu_read_lock(); fa_cookie = mlxsw_sp_acl_act_cookie_lookup(mlxsw_sp, cookie_index); devlink_trap_report(devlink, skb, trap_ctx, in_devlink_port, fa_cookie); rcu_read_unlock(); consume_skb(skb); } static int __mlxsw_sp_rx_no_mark_listener(struct sk_buff *skb, u16 local_port, void *trap_ctx) { struct devlink_port *in_devlink_port; struct mlxsw_sp_port *mlxsw_sp_port; struct mlxsw_sp *mlxsw_sp; struct devlink *devlink; int err; mlxsw_sp = devlink_trap_ctx_priv(trap_ctx); mlxsw_sp_port = mlxsw_sp->ports[local_port]; err = mlxsw_sp_rx_listener(mlxsw_sp, skb, local_port, mlxsw_sp_port); if (err) return err; devlink = priv_to_devlink(mlxsw_sp->core); in_devlink_port = mlxsw_core_port_devlink_port_get(mlxsw_sp->core, local_port); skb_push(skb, ETH_HLEN); devlink_trap_report(devlink, skb, trap_ctx, in_devlink_port, NULL); skb_pull(skb, ETH_HLEN); return 0; } static void mlxsw_sp_rx_no_mark_listener(struct sk_buff *skb, u16 local_port, void *trap_ctx) { int err; err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx); if (err) return; netif_receive_skb(skb); } static void mlxsw_sp_rx_mark_listener(struct sk_buff *skb, u16 local_port, void *trap_ctx) { skb->offload_fwd_mark = 1; mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx); } static void mlxsw_sp_rx_l3_mark_listener(struct sk_buff *skb, u16 local_port, void *trap_ctx) { skb->offload_l3_fwd_mark = 1; skb->offload_fwd_mark = 1; mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx); } static void mlxsw_sp_rx_ptp_listener(struct sk_buff *skb, u16 local_port, void *trap_ctx) { struct mlxsw_sp *mlxsw_sp = devlink_trap_ctx_priv(trap_ctx); int err; err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx); if (err) return; /* The PTP handler expects skb->data to point to the start of the * Ethernet header. */ skb_push(skb, ETH_HLEN); mlxsw_sp_ptp_receive(mlxsw_sp, skb, local_port); } static struct mlxsw_sp_port * mlxsw_sp_sample_tx_port_get(struct mlxsw_sp *mlxsw_sp, const struct mlxsw_rx_md_info *rx_md_info) { u16 local_port; if (!rx_md_info->tx_port_valid) return NULL; if (rx_md_info->tx_port_is_lag) local_port = mlxsw_core_lag_mapping_get(mlxsw_sp->core, rx_md_info->tx_lag_id, rx_md_info->tx_lag_port_index); else local_port = rx_md_info->tx_sys_port; if (local_port >= mlxsw_core_max_ports(mlxsw_sp->core)) return NULL; return mlxsw_sp->ports[local_port]; } /* The latency units are determined according to MOGCR.mirror_latency_units. It * defaults to 64 nanoseconds. */ #define MLXSW_SP_MIRROR_LATENCY_SHIFT 6 static void mlxsw_sp_psample_md_init(struct mlxsw_sp *mlxsw_sp, struct psample_metadata *md, struct sk_buff *skb, int in_ifindex, bool truncate, u32 trunc_size) { struct mlxsw_rx_md_info *rx_md_info = &mlxsw_skb_cb(skb)->rx_md_info; struct mlxsw_sp_port *mlxsw_sp_port; md->trunc_size = truncate ? trunc_size : skb->len; md->in_ifindex = in_ifindex; mlxsw_sp_port = mlxsw_sp_sample_tx_port_get(mlxsw_sp, rx_md_info); md->out_ifindex = mlxsw_sp_port && mlxsw_sp_port->dev ? mlxsw_sp_port->dev->ifindex : 0; md->out_tc_valid = rx_md_info->tx_tc_valid; md->out_tc = rx_md_info->tx_tc; md->out_tc_occ_valid = rx_md_info->tx_congestion_valid; md->out_tc_occ = rx_md_info->tx_congestion; md->latency_valid = rx_md_info->latency_valid; md->latency = rx_md_info->latency; md->latency <<= MLXSW_SP_MIRROR_LATENCY_SHIFT; } static void mlxsw_sp_rx_sample_listener(struct sk_buff *skb, u16 local_port, void *trap_ctx) { struct mlxsw_sp *mlxsw_sp = devlink_trap_ctx_priv(trap_ctx); struct mlxsw_sp_sample_trigger trigger; struct mlxsw_sp_sample_params *params; struct mlxsw_sp_port *mlxsw_sp_port; struct psample_metadata md = {}; int err; err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx); if (err) return; mlxsw_sp_port = mlxsw_sp->ports[local_port]; if (!mlxsw_sp_port) goto out; trigger.type = MLXSW_SP_SAMPLE_TRIGGER_TYPE_INGRESS; trigger.local_port = local_port; params = mlxsw_sp_sample_trigger_params_lookup(mlxsw_sp, &trigger); if (!params) goto out; /* The psample module expects skb->data to point to the start of the * Ethernet header. */ skb_push(skb, ETH_HLEN); mlxsw_sp_psample_md_init(mlxsw_sp, &md, skb, mlxsw_sp_port->dev->ifindex, params->truncate, params->trunc_size); psample_sample_packet(params->psample_group, skb, params->rate, &md); out: consume_skb(skb); } static void mlxsw_sp_rx_sample_tx_listener(struct sk_buff *skb, u16 local_port, void *trap_ctx) { struct mlxsw_rx_md_info *rx_md_info = &mlxsw_skb_cb(skb)->rx_md_info; struct mlxsw_sp *mlxsw_sp = devlink_trap_ctx_priv(trap_ctx); struct mlxsw_sp_port *mlxsw_sp_port, *mlxsw_sp_port_tx; struct mlxsw_sp_sample_trigger trigger; struct mlxsw_sp_sample_params *params; struct psample_metadata md = {}; int err; /* Locally generated packets are not reported from the policy engine * trigger, so do not report them from the egress trigger as well. */ if (local_port == MLXSW_PORT_CPU_PORT) goto out; err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx); if (err) return; mlxsw_sp_port = mlxsw_sp->ports[local_port]; if (!mlxsw_sp_port) goto out; /* Packet was sampled from Tx, so we need to retrieve the sample * parameters based on the Tx port and not the Rx port. */ mlxsw_sp_port_tx = mlxsw_sp_sample_tx_port_get(mlxsw_sp, rx_md_info); if (!mlxsw_sp_port_tx) goto out; trigger.type = MLXSW_SP_SAMPLE_TRIGGER_TYPE_EGRESS; trigger.local_port = mlxsw_sp_port_tx->local_port; params = mlxsw_sp_sample_trigger_params_lookup(mlxsw_sp, &trigger); if (!params) goto out; /* The psample module expects skb->data to point to the start of the * Ethernet header. */ skb_push(skb, ETH_HLEN); mlxsw_sp_psample_md_init(mlxsw_sp, &md, skb, mlxsw_sp_port->dev->ifindex, params->truncate, params->trunc_size); psample_sample_packet(params->psample_group, skb, params->rate, &md); out: consume_skb(skb); } static void mlxsw_sp_rx_sample_acl_listener(struct sk_buff *skb, u16 local_port, void *trap_ctx) { struct mlxsw_sp *mlxsw_sp = devlink_trap_ctx_priv(trap_ctx); struct mlxsw_sp_sample_trigger trigger = { .type = MLXSW_SP_SAMPLE_TRIGGER_TYPE_POLICY_ENGINE, }; struct mlxsw_sp_sample_params *params; struct mlxsw_sp_port *mlxsw_sp_port; struct psample_metadata md = {}; int err; err = __mlxsw_sp_rx_no_mark_listener(skb, local_port, trap_ctx); if (err) return; mlxsw_sp_port = mlxsw_sp->ports[local_port]; if (!mlxsw_sp_port) goto out; params = mlxsw_sp_sample_trigger_params_lookup(mlxsw_sp, &trigger); if (!params) goto out; /* The psample module expects skb->data to point to the start of the * Ethernet header. */ skb_push(skb, ETH_HLEN); mlxsw_sp_psample_md_init(mlxsw_sp, &md, skb, mlxsw_sp_port->dev->ifindex, params->truncate, params->trunc_size); psample_sample_packet(params->psample_group, skb, params->rate, &md); out: consume_skb(skb); } #define MLXSW_SP_TRAP_DROP(_id, _group_id) \ DEVLINK_TRAP_GENERIC(DROP, DROP, _id, \ DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \ MLXSW_SP_TRAP_METADATA) #define MLXSW_SP_TRAP_DROP_EXT(_id, _group_id, _metadata) \ DEVLINK_TRAP_GENERIC(DROP, DROP, _id, \ DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \ MLXSW_SP_TRAP_METADATA | (_metadata)) #define MLXSW_SP_TRAP_BUFFER_DROP(_id) \ DEVLINK_TRAP_GENERIC(DROP, TRAP, _id, \ DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS, \ MLXSW_SP_TRAP_METADATA) #define MLXSW_SP_TRAP_DRIVER_DROP(_id, _group_id) \ DEVLINK_TRAP_DRIVER(DROP, DROP, DEVLINK_MLXSW_TRAP_ID_##_id, \ DEVLINK_MLXSW_TRAP_NAME_##_id, \ DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \ MLXSW_SP_TRAP_METADATA) #define MLXSW_SP_TRAP_EXCEPTION(_id, _group_id) \ DEVLINK_TRAP_GENERIC(EXCEPTION, TRAP, _id, \ DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \ MLXSW_SP_TRAP_METADATA) #define MLXSW_SP_TRAP_CONTROL(_id, _group_id, _action) \ DEVLINK_TRAP_GENERIC(CONTROL, _action, _id, \ DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \ MLXSW_SP_TRAP_METADATA) #define MLXSW_SP_RXL_DISCARD(_id, _group_id) \ MLXSW_RXL_DIS(mlxsw_sp_rx_drop_listener, DISCARD_##_id, \ TRAP_EXCEPTION_TO_CPU, false, SP_##_group_id, \ SET_FW_DEFAULT, SP_##_group_id) #define MLXSW_SP_RXL_ACL_DISCARD(_id, _en_group_id, _dis_group_id) \ MLXSW_RXL_DIS(mlxsw_sp_rx_acl_drop_listener, DISCARD_##_id, \ TRAP_EXCEPTION_TO_CPU, false, SP_##_en_group_id, \ SET_FW_DEFAULT, SP_##_dis_group_id) #define MLXSW_SP_RXL_BUFFER_DISCARD(_mirror_reason) \ MLXSW_RXL_MIRROR(mlxsw_sp_rx_drop_listener, 0, SP_BUFFER_DISCARDS, \ MLXSW_SP_MIRROR_REASON_##_mirror_reason) #define MLXSW_SP_RXL_EXCEPTION(_id, _group_id, _action) \ MLXSW_RXL(mlxsw_sp_rx_mark_listener, _id, \ _action, false, SP_##_group_id, SET_FW_DEFAULT) #define MLXSW_SP_RXL_NO_MARK(_id, _group_id, _action, _is_ctrl) \ MLXSW_RXL(mlxsw_sp_rx_no_mark_listener, _id, _action, \ _is_ctrl, SP_##_group_id, DISCARD) #define MLXSW_SP_RXL_MARK(_id, _group_id, _action, _is_ctrl) \ MLXSW_RXL(mlxsw_sp_rx_mark_listener, _id, _action, _is_ctrl, \ SP_##_group_id, DISCARD) #define MLXSW_SP_RXL_L3_MARK(_id, _group_id, _action, _is_ctrl) \ MLXSW_RXL(mlxsw_sp_rx_l3_mark_listener, _id, _action, _is_ctrl, \ SP_##_group_id, DISCARD) #define MLXSW_SP_TRAP_POLICER(_id, _rate, _burst) \ DEVLINK_TRAP_POLICER(_id, _rate, _burst, \ MLXSW_REG_QPCR_HIGHEST_CIR, \ MLXSW_REG_QPCR_LOWEST_CIR, \ 1 << MLXSW_REG_QPCR_HIGHEST_CBS, \ 1 << MLXSW_REG_QPCR_LOWEST_CBS) /* Ordered by policer identifier */ static const struct mlxsw_sp_trap_policer_item mlxsw_sp_trap_policer_items_arr[] = { { .policer = MLXSW_SP_TRAP_POLICER(1, 10 * 1024, 4096), }, { .policer = MLXSW_SP_TRAP_POLICER(2, 128, 128), }, { .policer = MLXSW_SP_TRAP_POLICER(3, 128, 128), }, { .policer = MLXSW_SP_TRAP_POLICER(4, 128, 128), }, { .policer = MLXSW_SP_TRAP_POLICER(5, 16 * 1024, 8192), }, { .policer = MLXSW_SP_TRAP_POLICER(6, 128, 128), }, { .policer = MLXSW_SP_TRAP_POLICER(7, 1024, 512), }, { .policer = MLXSW_SP_TRAP_POLICER(8, 20 * 1024, 8192), }, { .policer = MLXSW_SP_TRAP_POLICER(9, 128, 128), }, { .policer = MLXSW_SP_TRAP_POLICER(10, 1024, 512), }, { .policer = MLXSW_SP_TRAP_POLICER(11, 256, 128), }, { .policer = MLXSW_SP_TRAP_POLICER(12, 128, 128), }, { .policer = MLXSW_SP_TRAP_POLICER(13, 128, 128), }, { .policer = MLXSW_SP_TRAP_POLICER(14, 1024, 512), }, { .policer = MLXSW_SP_TRAP_POLICER(15, 1024, 512), }, { .policer = MLXSW_SP_TRAP_POLICER(16, 24 * 1024, 16384), }, { .policer = MLXSW_SP_TRAP_POLICER(17, 19 * 1024, 8192), }, { .policer = MLXSW_SP_TRAP_POLICER(18, 1024, 512), }, { .policer = MLXSW_SP_TRAP_POLICER(19, 1024, 512), }, { .policer = MLXSW_SP_TRAP_POLICER(20, 10240, 4096), }, }; static const struct mlxsw_sp_trap_group_item mlxsw_sp_trap_group_items_arr[] = { { .group = DEVLINK_TRAP_GROUP_GENERIC(L2_DROPS, 1), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_L2_DISCARDS, .priority = 0, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(L3_DROPS, 1), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_L3_DISCARDS, .priority = 0, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(L3_EXCEPTIONS, 1), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_L3_EXCEPTIONS, .priority = 2, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(TUNNEL_DROPS, 1), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_TUNNEL_DISCARDS, .priority = 0, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(ACL_DROPS, 1), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_ACL_DISCARDS, .priority = 0, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(STP, 2), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_STP, .priority = 5, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(LACP, 3), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP, .priority = 5, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(LLDP, 4), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP, .priority = 5, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(MC_SNOOPING, 5), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_MC_SNOOPING, .priority = 3, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(DHCP, 6), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP, .priority = 2, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(NEIGH_DISCOVERY, 7), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_NEIGH_DISCOVERY, .priority = 2, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(BFD, 8), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_BFD, .priority = 5, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(OSPF, 9), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF, .priority = 5, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(BGP, 10), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP, .priority = 4, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(VRRP, 11), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_VRRP, .priority = 5, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(PIM, 12), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PIM, .priority = 5, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(UC_LB, 13), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_LBERROR, .priority = 0, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(LOCAL_DELIVERY, 14), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME, .priority = 2, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(EXTERNAL_DELIVERY, 19), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_EXTERNAL_ROUTE, .priority = 1, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(IPV6, 15), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_IPV6, .priority = 2, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(PTP_EVENT, 16), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP0, .priority = 5, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(PTP_GENERAL, 17), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PTP1, .priority = 2, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(ACL_TRAP, 18), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_FLOW_LOGGING, .priority = 4, }, }; static const struct mlxsw_sp_trap_item mlxsw_sp_trap_items_arr[] = { { .trap = MLXSW_SP_TRAP_DROP(SMAC_MC, L2_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ING_PACKET_SMAC_MC, L2_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(VLAN_TAG_MISMATCH, L2_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ING_SWITCH_VTAG_ALLOW, L2_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(INGRESS_VLAN_FILTER, L2_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ING_SWITCH_VLAN, L2_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(INGRESS_STP_FILTER, L2_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ING_SWITCH_STP, L2_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(EMPTY_TX_LIST, L2_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(LOOKUP_SWITCH_UC, L2_DISCARDS), MLXSW_SP_RXL_DISCARD(LOOKUP_SWITCH_MC_NULL, L2_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(PORT_LOOPBACK_FILTER, L2_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(LOOKUP_SWITCH_LB, L2_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(BLACKHOLE_ROUTE, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ROUTER2, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(NON_IP_PACKET, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ING_ROUTER_NON_IP_PACKET, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(UC_DIP_MC_DMAC, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ING_ROUTER_UC_DIP_MC_DMAC, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(DIP_LB, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ING_ROUTER_DIP_LB, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(SIP_MC, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ING_ROUTER_SIP_MC, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(SIP_LB, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ING_ROUTER_SIP_LB, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(CORRUPTED_IP_HDR, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ING_ROUTER_CORRUPTED_IP_HDR, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(IPV4_SIP_BC, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ING_ROUTER_IPV4_SIP_BC, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(IPV6_MC_DIP_RESERVED_SCOPE, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(IPV6_MC_DIP_RESERVED_SCOPE, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_EXCEPTION(MTU_ERROR, L3_EXCEPTIONS), .listeners_arr = { MLXSW_SP_RXL_EXCEPTION(MTUERROR, L3_EXCEPTIONS, TRAP_TO_CPU), }, }, { .trap = MLXSW_SP_TRAP_EXCEPTION(TTL_ERROR, L3_EXCEPTIONS), .listeners_arr = { MLXSW_SP_RXL_EXCEPTION(TTLERROR, L3_EXCEPTIONS, TRAP_TO_CPU), }, }, { .trap = MLXSW_SP_TRAP_EXCEPTION(RPF, L3_EXCEPTIONS), .listeners_arr = { MLXSW_SP_RXL_EXCEPTION(RPF, L3_EXCEPTIONS, TRAP_TO_CPU), }, }, { .trap = MLXSW_SP_TRAP_EXCEPTION(REJECT_ROUTE, L3_EXCEPTIONS), .listeners_arr = { MLXSW_SP_RXL_EXCEPTION(RTR_INGRESS1, L3_EXCEPTIONS, TRAP_TO_CPU), }, }, { .trap = MLXSW_SP_TRAP_EXCEPTION(UNRESOLVED_NEIGH, L3_EXCEPTIONS), .listeners_arr = { MLXSW_SP_RXL_EXCEPTION(HOST_MISS_IPV4, L3_EXCEPTIONS, TRAP_TO_CPU), MLXSW_SP_RXL_EXCEPTION(HOST_MISS_IPV6, L3_EXCEPTIONS, TRAP_TO_CPU), MLXSW_SP_RXL_EXCEPTION(RTR_EGRESS0, L3_EXCEPTIONS, TRAP_EXCEPTION_TO_CPU), }, }, { .trap = MLXSW_SP_TRAP_EXCEPTION(IPV4_LPM_UNICAST_MISS, L3_EXCEPTIONS), .listeners_arr = { MLXSW_SP_RXL_EXCEPTION(DISCARD_ROUTER_LPM4, L3_EXCEPTIONS, TRAP_EXCEPTION_TO_CPU), }, }, { .trap = MLXSW_SP_TRAP_EXCEPTION(IPV6_LPM_UNICAST_MISS, L3_EXCEPTIONS), .listeners_arr = { MLXSW_SP_RXL_EXCEPTION(DISCARD_ROUTER_LPM6, L3_EXCEPTIONS, TRAP_EXCEPTION_TO_CPU), }, }, { .trap = MLXSW_SP_TRAP_DRIVER_DROP(IRIF_DISABLED, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ROUTER_IRIF_EN, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DRIVER_DROP(ERIF_DISABLED, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ROUTER_ERIF_EN, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP(NON_ROUTABLE, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(NON_ROUTABLE, L3_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_EXCEPTION(DECAP_ERROR, TUNNEL_DROPS), .listeners_arr = { MLXSW_SP_RXL_EXCEPTION(DECAP_ECN0, TUNNEL_DISCARDS, TRAP_EXCEPTION_TO_CPU), MLXSW_SP_RXL_EXCEPTION(IPIP_DECAP_ERROR, TUNNEL_DISCARDS, TRAP_EXCEPTION_TO_CPU), MLXSW_SP_RXL_EXCEPTION(DISCARD_DEC_PKT, TUNNEL_DISCARDS, TRAP_EXCEPTION_TO_CPU), }, }, { .trap = MLXSW_SP_TRAP_DROP(OVERLAY_SMAC_MC, TUNNEL_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(OVERLAY_SMAC_MC, TUNNEL_DISCARDS), }, }, { .trap = MLXSW_SP_TRAP_DROP_EXT(INGRESS_FLOW_ACTION_DROP, ACL_DROPS, DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE), .listeners_arr = { MLXSW_SP_RXL_ACL_DISCARD(INGRESS_ACL, ACL_DISCARDS, DUMMY), }, }, { .trap = MLXSW_SP_TRAP_DROP_EXT(EGRESS_FLOW_ACTION_DROP, ACL_DROPS, DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE), .listeners_arr = { MLXSW_SP_RXL_ACL_DISCARD(EGRESS_ACL, ACL_DISCARDS, DUMMY), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(STP, STP, TRAP), .listeners_arr = { MLXSW_SP_RXL_NO_MARK(STP, STP, TRAP_TO_CPU, true), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(LACP, LACP, TRAP), .listeners_arr = { MLXSW_SP_RXL_NO_MARK(LACP, LACP, TRAP_TO_CPU, true), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(LLDP, LLDP, TRAP), .listeners_arr = { MLXSW_RXL(mlxsw_sp_rx_ptp_listener, LLDP, TRAP_TO_CPU, true, SP_LLDP, DISCARD), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IGMP_QUERY, MC_SNOOPING, MIRROR), .listeners_arr = { MLXSW_SP_RXL_MARK(IGMP_QUERY, MC_SNOOPING, MIRROR_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IGMP_V1_REPORT, MC_SNOOPING, TRAP), .listeners_arr = { MLXSW_SP_RXL_NO_MARK(IGMP_V1_REPORT, MC_SNOOPING, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IGMP_V2_REPORT, MC_SNOOPING, TRAP), .listeners_arr = { MLXSW_SP_RXL_NO_MARK(IGMP_V2_REPORT, MC_SNOOPING, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IGMP_V3_REPORT, MC_SNOOPING, TRAP), .listeners_arr = { MLXSW_SP_RXL_NO_MARK(IGMP_V3_REPORT, MC_SNOOPING, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IGMP_V2_LEAVE, MC_SNOOPING, TRAP), .listeners_arr = { MLXSW_SP_RXL_NO_MARK(IGMP_V2_LEAVE, MC_SNOOPING, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(MLD_QUERY, MC_SNOOPING, MIRROR), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV6_MLDV12_LISTENER_QUERY, MC_SNOOPING, MIRROR_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(MLD_V1_REPORT, MC_SNOOPING, TRAP), .listeners_arr = { MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_REPORT, MC_SNOOPING, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(MLD_V2_REPORT, MC_SNOOPING, TRAP), .listeners_arr = { MLXSW_SP_RXL_NO_MARK(IPV6_MLDV2_LISTENER_REPORT, MC_SNOOPING, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(MLD_V1_DONE, MC_SNOOPING, TRAP), .listeners_arr = { MLXSW_SP_RXL_NO_MARK(IPV6_MLDV1_LISTENER_DONE, MC_SNOOPING, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV4_DHCP, DHCP, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV4_DHCP, DHCP, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_DHCP, DHCP, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV6_DHCP, DHCP, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(ARP_REQUEST, NEIGH_DISCOVERY, MIRROR), .listeners_arr = { MLXSW_SP_RXL_MARK(ROUTER_ARPBC, NEIGH_DISCOVERY, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(ARP_RESPONSE, NEIGH_DISCOVERY, MIRROR), .listeners_arr = { MLXSW_SP_RXL_MARK(ROUTER_ARPUC, NEIGH_DISCOVERY, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(ARP_OVERLAY, NEIGH_DISCOVERY, TRAP), .listeners_arr = { MLXSW_SP_RXL_NO_MARK(NVE_DECAP_ARP, NEIGH_DISCOVERY, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_NEIGH_SOLICIT, NEIGH_DISCOVERY, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_SOLICITATION, NEIGH_DISCOVERY, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_NEIGH_ADVERT, NEIGH_DISCOVERY, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(L3_IPV6_NEIGHBOR_ADVERTISEMENT, NEIGH_DISCOVERY, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV4_BFD, BFD, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV4_BFD, BFD, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_BFD, BFD, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV6_BFD, BFD, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV4_OSPF, OSPF, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV4_OSPF, OSPF, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_OSPF, OSPF, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV6_OSPF, OSPF, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV4_BGP, BGP, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV4_BGP, BGP, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_BGP, BGP, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV6_BGP, BGP, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV4_VRRP, VRRP, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV4_VRRP, VRRP, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_VRRP, VRRP, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV6_VRRP, VRRP, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV4_PIM, PIM, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV4_PIM, PIM, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_PIM, PIM, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV6_PIM, PIM, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(UC_LB, UC_LB, MIRROR), .listeners_arr = { MLXSW_SP_RXL_L3_MARK(LBERROR, LBERROR, MIRROR_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(LOCAL_ROUTE, LOCAL_DELIVERY, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IP2ME, IP2ME, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(EXTERNAL_ROUTE, EXTERNAL_DELIVERY, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(RTR_INGRESS0, EXTERNAL_ROUTE, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_UC_DIP_LINK_LOCAL_SCOPE, LOCAL_DELIVERY, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV6_LINK_LOCAL_DEST, IP2ME, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV4_ROUTER_ALERT, LOCAL_DELIVERY, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV4, IP2ME, TRAP_TO_CPU, false), }, }, { /* IPV6_ROUTER_ALERT is defined in uAPI as 22, but it is not * used in this file, so undefine it. */ #undef IPV6_ROUTER_ALERT .trap = MLXSW_SP_TRAP_CONTROL(IPV6_ROUTER_ALERT, LOCAL_DELIVERY, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(ROUTER_ALERT_IPV6, IP2ME, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_DIP_ALL_NODES, IPV6, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV6_ALL_NODES_LINK, IPV6, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_DIP_ALL_ROUTERS, IPV6, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(IPV6_ALL_ROUTERS_LINK, IPV6, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_ROUTER_SOLICIT, IPV6, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_SOLICITATION, IPV6, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_ROUTER_ADVERT, IPV6, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(L3_IPV6_ROUTER_ADVERTISEMENT, IPV6, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(IPV6_REDIRECT, IPV6, TRAP), .listeners_arr = { MLXSW_SP_RXL_MARK(L3_IPV6_REDIRECTION, IPV6, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(PTP_EVENT, PTP_EVENT, TRAP), .listeners_arr = { MLXSW_RXL(mlxsw_sp_rx_ptp_listener, PTP0, TRAP_TO_CPU, false, SP_PTP0, DISCARD), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(PTP_GENERAL, PTP_GENERAL, TRAP), .listeners_arr = { MLXSW_SP_RXL_NO_MARK(PTP1, PTP1, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_CONTROL(FLOW_ACTION_TRAP, ACL_TRAP, TRAP), .listeners_arr = { MLXSW_SP_RXL_NO_MARK(ACL0, FLOW_LOGGING, TRAP_TO_CPU, false), }, }, { .trap = MLXSW_SP_TRAP_DROP(BLACKHOLE_NEXTHOP, L3_DROPS), .listeners_arr = { MLXSW_SP_RXL_DISCARD(ROUTER3, L3_DISCARDS), }, }, }; static struct mlxsw_sp_trap_policer_item * mlxsw_sp_trap_policer_item_lookup(struct mlxsw_sp *mlxsw_sp, u32 id) { struct mlxsw_sp_trap *trap = mlxsw_sp->trap; int i; for (i = 0; i < trap->policers_count; i++) { if (trap->policer_items_arr[i].policer.id == id) return &trap->policer_items_arr[i]; } return NULL; } static struct mlxsw_sp_trap_group_item * mlxsw_sp_trap_group_item_lookup(struct mlxsw_sp *mlxsw_sp, u16 id) { struct mlxsw_sp_trap *trap = mlxsw_sp->trap; int i; for (i = 0; i < trap->groups_count; i++) { if (trap->group_items_arr[i].group.id == id) return &trap->group_items_arr[i]; } return NULL; } static struct mlxsw_sp_trap_item * mlxsw_sp_trap_item_lookup(struct mlxsw_sp *mlxsw_sp, u16 id) { struct mlxsw_sp_trap *trap = mlxsw_sp->trap; int i; for (i = 0; i < trap->traps_count; i++) { if (trap->trap_items_arr[i].trap.id == id) return &trap->trap_items_arr[i]; } return NULL; } static int mlxsw_sp_trap_cpu_policers_set(struct mlxsw_sp *mlxsw_sp) { struct mlxsw_sp_trap *trap = mlxsw_sp->trap; char qpcr_pl[MLXSW_REG_QPCR_LEN]; u16 hw_id; /* The purpose of "thin" policer is to drop as many packets * as possible. The dummy group is using it. */ hw_id = find_first_zero_bit(trap->policers_usage, trap->max_policers); if (WARN_ON(hw_id == trap->max_policers)) return -ENOBUFS; __set_bit(hw_id, trap->policers_usage); trap->thin_policer_hw_id = hw_id; mlxsw_reg_qpcr_pack(qpcr_pl, hw_id, MLXSW_REG_QPCR_IR_UNITS_M, false, 1, 4); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qpcr), qpcr_pl); } static int mlxsw_sp_trap_dummy_group_init(struct mlxsw_sp *mlxsw_sp) { char htgt_pl[MLXSW_REG_HTGT_LEN]; mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_SP_DUMMY, mlxsw_sp->trap->thin_policer_hw_id, 0, 1); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl); } static int mlxsw_sp_trap_policer_items_arr_init(struct mlxsw_sp *mlxsw_sp) { size_t arr_size = ARRAY_SIZE(mlxsw_sp_trap_policer_items_arr); size_t elem_size = sizeof(struct mlxsw_sp_trap_policer_item); struct mlxsw_sp_trap *trap = mlxsw_sp->trap; size_t free_policers = 0; u32 last_id; int i; for_each_clear_bit(i, trap->policers_usage, trap->max_policers) free_policers++; if (arr_size > free_policers) { dev_err(mlxsw_sp->bus_info->dev, "Exceeded number of supported packet trap policers\n"); return -ENOBUFS; } trap->policer_items_arr = kcalloc(free_policers, elem_size, GFP_KERNEL); if (!trap->policer_items_arr) return -ENOMEM; trap->policers_count = free_policers; /* Initialize policer items array with pre-defined policers. */ memcpy(trap->policer_items_arr, mlxsw_sp_trap_policer_items_arr, elem_size * arr_size); /* Initialize policer items array with the rest of the available * policers. */ last_id = mlxsw_sp_trap_policer_items_arr[arr_size - 1].policer.id; for (i = arr_size; i < trap->policers_count; i++) { const struct mlxsw_sp_trap_policer_item *policer_item; /* Use parameters set for first policer and override * relevant ones. */ policer_item = &mlxsw_sp_trap_policer_items_arr[0]; trap->policer_items_arr[i] = *policer_item; trap->policer_items_arr[i].policer.id = ++last_id; trap->policer_items_arr[i].policer.init_rate = 1; trap->policer_items_arr[i].policer.init_burst = 16; } return 0; } static void mlxsw_sp_trap_policer_items_arr_fini(struct mlxsw_sp *mlxsw_sp) { kfree(mlxsw_sp->trap->policer_items_arr); } static int mlxsw_sp_trap_policers_init(struct mlxsw_sp *mlxsw_sp) { struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); const struct mlxsw_sp_trap_policer_item *policer_item; struct mlxsw_sp_trap *trap = mlxsw_sp->trap; int err, i; err = mlxsw_sp_trap_policer_items_arr_init(mlxsw_sp); if (err) return err; for (i = 0; i < trap->policers_count; i++) { policer_item = &trap->policer_items_arr[i]; err = devl_trap_policers_register(devlink, &policer_item->policer, 1); if (err) goto err_trap_policer_register; } return 0; err_trap_policer_register: for (i--; i >= 0; i--) { policer_item = &trap->policer_items_arr[i]; devl_trap_policers_unregister(devlink, &policer_item->policer, 1); } mlxsw_sp_trap_policer_items_arr_fini(mlxsw_sp); return err; } static void mlxsw_sp_trap_policers_fini(struct mlxsw_sp *mlxsw_sp) { struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); const struct mlxsw_sp_trap_policer_item *policer_item; struct mlxsw_sp_trap *trap = mlxsw_sp->trap; int i; for (i = trap->policers_count - 1; i >= 0; i--) { policer_item = &trap->policer_items_arr[i]; devl_trap_policers_unregister(devlink, &policer_item->policer, 1); } mlxsw_sp_trap_policer_items_arr_fini(mlxsw_sp); } static int mlxsw_sp_trap_group_items_arr_init(struct mlxsw_sp *mlxsw_sp) { size_t common_groups_count = ARRAY_SIZE(mlxsw_sp_trap_group_items_arr); const struct mlxsw_sp_trap_group_item *spec_group_items_arr; size_t elem_size = sizeof(struct mlxsw_sp_trap_group_item); struct mlxsw_sp_trap *trap = mlxsw_sp->trap; size_t groups_count, spec_groups_count; int err; err = mlxsw_sp->trap_ops->groups_init(mlxsw_sp, &spec_group_items_arr, &spec_groups_count); if (err) return err; /* The group items array is created by concatenating the common trap * group items and the ASIC-specific trap group items. */ groups_count = common_groups_count + spec_groups_count; trap->group_items_arr = kcalloc(groups_count, elem_size, GFP_KERNEL); if (!trap->group_items_arr) return -ENOMEM; memcpy(trap->group_items_arr, mlxsw_sp_trap_group_items_arr, elem_size * common_groups_count); memcpy(trap->group_items_arr + common_groups_count, spec_group_items_arr, elem_size * spec_groups_count); trap->groups_count = groups_count; return 0; } static void mlxsw_sp_trap_group_items_arr_fini(struct mlxsw_sp *mlxsw_sp) { kfree(mlxsw_sp->trap->group_items_arr); } static int mlxsw_sp_trap_groups_init(struct mlxsw_sp *mlxsw_sp) { struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); const struct mlxsw_sp_trap_group_item *group_item; struct mlxsw_sp_trap *trap = mlxsw_sp->trap; int err, i; err = mlxsw_sp_trap_group_items_arr_init(mlxsw_sp); if (err) return err; for (i = 0; i < trap->groups_count; i++) { group_item = &trap->group_items_arr[i]; err = devl_trap_groups_register(devlink, &group_item->group, 1); if (err) goto err_trap_group_register; } return 0; err_trap_group_register: for (i--; i >= 0; i--) { group_item = &trap->group_items_arr[i]; devl_trap_groups_unregister(devlink, &group_item->group, 1); } mlxsw_sp_trap_group_items_arr_fini(mlxsw_sp); return err; } static void mlxsw_sp_trap_groups_fini(struct mlxsw_sp *mlxsw_sp) { struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); struct mlxsw_sp_trap *trap = mlxsw_sp->trap; int i; for (i = trap->groups_count - 1; i >= 0; i--) { const struct mlxsw_sp_trap_group_item *group_item; group_item = &trap->group_items_arr[i]; devl_trap_groups_unregister(devlink, &group_item->group, 1); } mlxsw_sp_trap_group_items_arr_fini(mlxsw_sp); } static bool mlxsw_sp_trap_listener_is_valid(const struct mlxsw_listener *listener) { return listener->trap_id != 0; } static int mlxsw_sp_trap_items_arr_init(struct mlxsw_sp *mlxsw_sp) { size_t common_traps_count = ARRAY_SIZE(mlxsw_sp_trap_items_arr); const struct mlxsw_sp_trap_item *spec_trap_items_arr; size_t elem_size = sizeof(struct mlxsw_sp_trap_item); struct mlxsw_sp_trap *trap = mlxsw_sp->trap; size_t traps_count, spec_traps_count; int err; err = mlxsw_sp->trap_ops->traps_init(mlxsw_sp, &spec_trap_items_arr, &spec_traps_count); if (err) return err; /* The trap items array is created by concatenating the common trap * items and the ASIC-specific trap items. */ traps_count = common_traps_count + spec_traps_count; trap->trap_items_arr = kcalloc(traps_count, elem_size, GFP_KERNEL); if (!trap->trap_items_arr) return -ENOMEM; memcpy(trap->trap_items_arr, mlxsw_sp_trap_items_arr, elem_size * common_traps_count); memcpy(trap->trap_items_arr + common_traps_count, spec_trap_items_arr, elem_size * spec_traps_count); trap->traps_count = traps_count; return 0; } static void mlxsw_sp_trap_items_arr_fini(struct mlxsw_sp *mlxsw_sp) { kfree(mlxsw_sp->trap->trap_items_arr); } static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp) { struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); struct mlxsw_sp_trap *trap = mlxsw_sp->trap; const struct mlxsw_sp_trap_item *trap_item; int err, i; err = mlxsw_sp_trap_items_arr_init(mlxsw_sp); if (err) return err; for (i = 0; i < trap->traps_count; i++) { trap_item = &trap->trap_items_arr[i]; err = devl_traps_register(devlink, &trap_item->trap, 1, mlxsw_sp); if (err) goto err_trap_register; } return 0; err_trap_register: for (i--; i >= 0; i--) { trap_item = &trap->trap_items_arr[i]; devl_traps_unregister(devlink, &trap_item->trap, 1); } mlxsw_sp_trap_items_arr_fini(mlxsw_sp); return err; } static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp) { struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); struct mlxsw_sp_trap *trap = mlxsw_sp->trap; int i; for (i = trap->traps_count - 1; i >= 0; i--) { const struct mlxsw_sp_trap_item *trap_item; trap_item = &trap->trap_items_arr[i]; devl_traps_unregister(devlink, &trap_item->trap, 1); } mlxsw_sp_trap_items_arr_fini(mlxsw_sp); } int mlxsw_sp_devlink_traps_init(struct mlxsw_sp *mlxsw_sp) { int err; err = mlxsw_sp_trap_cpu_policers_set(mlxsw_sp); if (err) return err; err = mlxsw_sp_trap_dummy_group_init(mlxsw_sp); if (err) return err; err = mlxsw_sp_trap_policers_init(mlxsw_sp); if (err) return err; err = mlxsw_sp_trap_groups_init(mlxsw_sp); if (err) goto err_trap_groups_init; err = mlxsw_sp_traps_init(mlxsw_sp); if (err) goto err_traps_init; return 0; err_traps_init: mlxsw_sp_trap_groups_fini(mlxsw_sp); err_trap_groups_init: mlxsw_sp_trap_policers_fini(mlxsw_sp); return err; } void mlxsw_sp_devlink_traps_fini(struct mlxsw_sp *mlxsw_sp) { mlxsw_sp_traps_fini(mlxsw_sp); mlxsw_sp_trap_groups_fini(mlxsw_sp); mlxsw_sp_trap_policers_fini(mlxsw_sp); } int mlxsw_sp_trap_init(struct mlxsw_core *mlxsw_core, const struct devlink_trap *trap, void *trap_ctx) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); const struct mlxsw_sp_trap_item *trap_item; int i; trap_item = mlxsw_sp_trap_item_lookup(mlxsw_sp, trap->id); if (WARN_ON(!trap_item)) return -EINVAL; for (i = 0; i < MLXSW_SP_TRAP_LISTENERS_MAX; i++) { const struct mlxsw_listener *listener; int err; listener = &trap_item->listeners_arr[i]; if (!mlxsw_sp_trap_listener_is_valid(listener)) continue; err = mlxsw_core_trap_register(mlxsw_core, listener, trap_ctx); if (err) return err; } return 0; } void mlxsw_sp_trap_fini(struct mlxsw_core *mlxsw_core, const struct devlink_trap *trap, void *trap_ctx) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); const struct mlxsw_sp_trap_item *trap_item; int i; trap_item = mlxsw_sp_trap_item_lookup(mlxsw_sp, trap->id); if (WARN_ON(!trap_item)) return; for (i = MLXSW_SP_TRAP_LISTENERS_MAX - 1; i >= 0; i--) { const struct mlxsw_listener *listener; listener = &trap_item->listeners_arr[i]; if (!mlxsw_sp_trap_listener_is_valid(listener)) continue; mlxsw_core_trap_unregister(mlxsw_core, listener, trap_ctx); } } int mlxsw_sp_trap_action_set(struct mlxsw_core *mlxsw_core, const struct devlink_trap *trap, enum devlink_trap_action action, struct netlink_ext_ack *extack) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); const struct mlxsw_sp_trap_item *trap_item; int i; trap_item = mlxsw_sp_trap_item_lookup(mlxsw_sp, trap->id); if (WARN_ON(!trap_item)) return -EINVAL; if (trap_item->is_source) { NL_SET_ERR_MSG_MOD(extack, "Changing the action of source traps is not supported"); return -EOPNOTSUPP; } for (i = 0; i < MLXSW_SP_TRAP_LISTENERS_MAX; i++) { const struct mlxsw_listener *listener; bool enabled; int err; listener = &trap_item->listeners_arr[i]; if (!mlxsw_sp_trap_listener_is_valid(listener)) continue; switch (action) { case DEVLINK_TRAP_ACTION_DROP: enabled = false; break; case DEVLINK_TRAP_ACTION_TRAP: enabled = true; break; default: return -EINVAL; } err = mlxsw_core_trap_state_set(mlxsw_core, listener, enabled); if (err) return err; } return 0; } static int __mlxsw_sp_trap_group_init(struct mlxsw_core *mlxsw_core, const struct devlink_trap_group *group, u32 policer_id, struct netlink_ext_ack *extack) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); u16 hw_policer_id = MLXSW_REG_HTGT_INVALID_POLICER; const struct mlxsw_sp_trap_group_item *group_item; char htgt_pl[MLXSW_REG_HTGT_LEN]; group_item = mlxsw_sp_trap_group_item_lookup(mlxsw_sp, group->id); if (WARN_ON(!group_item)) return -EINVAL; if (group_item->fixed_policer && policer_id != group->init_policer_id) { NL_SET_ERR_MSG_MOD(extack, "Changing the policer binding of this group is not supported"); return -EOPNOTSUPP; } if (policer_id) { struct mlxsw_sp_trap_policer_item *policer_item; policer_item = mlxsw_sp_trap_policer_item_lookup(mlxsw_sp, policer_id); if (WARN_ON(!policer_item)) return -EINVAL; hw_policer_id = policer_item->hw_id; } mlxsw_reg_htgt_pack(htgt_pl, group_item->hw_group_id, hw_policer_id, group_item->priority, group_item->priority); return mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl); } int mlxsw_sp_trap_group_init(struct mlxsw_core *mlxsw_core, const struct devlink_trap_group *group) { return __mlxsw_sp_trap_group_init(mlxsw_core, group, group->init_policer_id, NULL); } int mlxsw_sp_trap_group_set(struct mlxsw_core *mlxsw_core, const struct devlink_trap_group *group, const struct devlink_trap_policer *policer, struct netlink_ext_ack *extack) { u32 policer_id = policer ? policer->id : 0; return __mlxsw_sp_trap_group_init(mlxsw_core, group, policer_id, extack); } static int mlxsw_sp_trap_policer_item_init(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_trap_policer_item *policer_item) { struct mlxsw_sp_trap *trap = mlxsw_sp->trap; u16 hw_id; /* We should be able to allocate a policer because the number of * policers we registered with devlink is in according with the number * of available policers. */ hw_id = find_first_zero_bit(trap->policers_usage, trap->max_policers); if (WARN_ON(hw_id == trap->max_policers)) return -ENOBUFS; __set_bit(hw_id, trap->policers_usage); policer_item->hw_id = hw_id; return 0; } static void mlxsw_sp_trap_policer_item_fini(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_trap_policer_item *policer_item) { __clear_bit(policer_item->hw_id, mlxsw_sp->trap->policers_usage); } static int mlxsw_sp_trap_policer_bs(u64 burst, u8 *p_burst_size, struct netlink_ext_ack *extack) { int bs = fls64(burst) - 1; if (burst != (BIT_ULL(bs))) { NL_SET_ERR_MSG_MOD(extack, "Policer burst size is not power of two"); return -EINVAL; } *p_burst_size = bs; return 0; } static int __mlxsw_sp_trap_policer_set(struct mlxsw_sp *mlxsw_sp, u16 hw_id, u64 rate, u64 burst, bool clear_counter, struct netlink_ext_ack *extack) { char qpcr_pl[MLXSW_REG_QPCR_LEN]; u8 burst_size; int err; err = mlxsw_sp_trap_policer_bs(burst, &burst_size, extack); if (err) return err; mlxsw_reg_qpcr_pack(qpcr_pl, hw_id, MLXSW_REG_QPCR_IR_UNITS_M, false, rate, burst_size); mlxsw_reg_qpcr_clear_counter_set(qpcr_pl, clear_counter); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qpcr), qpcr_pl); } int mlxsw_sp_trap_policer_init(struct mlxsw_core *mlxsw_core, const struct devlink_trap_policer *policer) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); struct mlxsw_sp_trap_policer_item *policer_item; int err; policer_item = mlxsw_sp_trap_policer_item_lookup(mlxsw_sp, policer->id); if (WARN_ON(!policer_item)) return -EINVAL; err = mlxsw_sp_trap_policer_item_init(mlxsw_sp, policer_item); if (err) return err; err = __mlxsw_sp_trap_policer_set(mlxsw_sp, policer_item->hw_id, policer->init_rate, policer->init_burst, true, NULL); if (err) goto err_trap_policer_set; return 0; err_trap_policer_set: mlxsw_sp_trap_policer_item_fini(mlxsw_sp, policer_item); return err; } void mlxsw_sp_trap_policer_fini(struct mlxsw_core *mlxsw_core, const struct devlink_trap_policer *policer) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); struct mlxsw_sp_trap_policer_item *policer_item; policer_item = mlxsw_sp_trap_policer_item_lookup(mlxsw_sp, policer->id); if (WARN_ON(!policer_item)) return; mlxsw_sp_trap_policer_item_fini(mlxsw_sp, policer_item); } int mlxsw_sp_trap_policer_set(struct mlxsw_core *mlxsw_core, const struct devlink_trap_policer *policer, u64 rate, u64 burst, struct netlink_ext_ack *extack) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); struct mlxsw_sp_trap_policer_item *policer_item; policer_item = mlxsw_sp_trap_policer_item_lookup(mlxsw_sp, policer->id); if (WARN_ON(!policer_item)) return -EINVAL; return __mlxsw_sp_trap_policer_set(mlxsw_sp, policer_item->hw_id, rate, burst, false, extack); } int mlxsw_sp_trap_policer_counter_get(struct mlxsw_core *mlxsw_core, const struct devlink_trap_policer *policer, u64 *p_drops) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); struct mlxsw_sp_trap_policer_item *policer_item; char qpcr_pl[MLXSW_REG_QPCR_LEN]; int err; policer_item = mlxsw_sp_trap_policer_item_lookup(mlxsw_sp, policer->id); if (WARN_ON(!policer_item)) return -EINVAL; mlxsw_reg_qpcr_pack(qpcr_pl, policer_item->hw_id, MLXSW_REG_QPCR_IR_UNITS_M, false, 0, 0); err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(qpcr), qpcr_pl); if (err) return err; *p_drops = mlxsw_reg_qpcr_violate_count_get(qpcr_pl); return 0; } int mlxsw_sp_trap_group_policer_hw_id_get(struct mlxsw_sp *mlxsw_sp, u16 id, bool *p_enabled, u16 *p_hw_id) { struct mlxsw_sp_trap_policer_item *pol_item; struct mlxsw_sp_trap_group_item *gr_item; u32 pol_id; gr_item = mlxsw_sp_trap_group_item_lookup(mlxsw_sp, id); if (!gr_item) return -ENOENT; pol_id = gr_item->group.init_policer_id; if (!pol_id) { *p_enabled = false; return 0; } pol_item = mlxsw_sp_trap_policer_item_lookup(mlxsw_sp, pol_id); if (WARN_ON(!pol_item)) return -ENOENT; *p_enabled = true; *p_hw_id = pol_item->hw_id; return 0; } static const struct mlxsw_sp_trap_group_item mlxsw_sp1_trap_group_items_arr[] = { { .group = DEVLINK_TRAP_GROUP_GENERIC(ACL_SAMPLE, 0), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PKT_SAMPLE, .priority = 0, }, }; static const struct mlxsw_sp_trap_item mlxsw_sp1_trap_items_arr[] = { { .trap = MLXSW_SP_TRAP_CONTROL(FLOW_ACTION_SAMPLE, ACL_SAMPLE, MIRROR), .listeners_arr = { MLXSW_RXL(mlxsw_sp_rx_sample_listener, PKT_SAMPLE, MIRROR_TO_CPU, false, SP_PKT_SAMPLE, DISCARD), }, }, }; static int mlxsw_sp1_trap_groups_init(struct mlxsw_sp *mlxsw_sp, const struct mlxsw_sp_trap_group_item **arr, size_t *p_groups_count) { *arr = mlxsw_sp1_trap_group_items_arr; *p_groups_count = ARRAY_SIZE(mlxsw_sp1_trap_group_items_arr); return 0; } static int mlxsw_sp1_traps_init(struct mlxsw_sp *mlxsw_sp, const struct mlxsw_sp_trap_item **arr, size_t *p_traps_count) { *arr = mlxsw_sp1_trap_items_arr; *p_traps_count = ARRAY_SIZE(mlxsw_sp1_trap_items_arr); return 0; } const struct mlxsw_sp_trap_ops mlxsw_sp1_trap_ops = { .groups_init = mlxsw_sp1_trap_groups_init, .traps_init = mlxsw_sp1_traps_init, }; static const struct mlxsw_sp_trap_group_item mlxsw_sp2_trap_group_items_arr[] = { { .group = DEVLINK_TRAP_GROUP_GENERIC(BUFFER_DROPS, 20), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_BUFFER_DISCARDS, .priority = 0, .fixed_policer = true, }, { .group = DEVLINK_TRAP_GROUP_GENERIC(ACL_SAMPLE, 0), .hw_group_id = MLXSW_REG_HTGT_TRAP_GROUP_SP_PKT_SAMPLE, .priority = 0, .fixed_policer = true, }, }; static const struct mlxsw_sp_trap_item mlxsw_sp2_trap_items_arr[] = { { .trap = MLXSW_SP_TRAP_BUFFER_DROP(EARLY_DROP), .listeners_arr = { MLXSW_SP_RXL_BUFFER_DISCARD(INGRESS_WRED), }, .is_source = true, }, { .trap = MLXSW_SP_TRAP_CONTROL(FLOW_ACTION_SAMPLE, ACL_SAMPLE, MIRROR), .listeners_arr = { MLXSW_RXL_MIRROR(mlxsw_sp_rx_sample_listener, 1, SP_PKT_SAMPLE, MLXSW_SP_MIRROR_REASON_INGRESS), MLXSW_RXL_MIRROR(mlxsw_sp_rx_sample_tx_listener, 1, SP_PKT_SAMPLE, MLXSW_SP_MIRROR_REASON_EGRESS), MLXSW_RXL_MIRROR(mlxsw_sp_rx_sample_acl_listener, 1, SP_PKT_SAMPLE, MLXSW_SP_MIRROR_REASON_POLICY_ENGINE), }, }, }; static int mlxsw_sp2_trap_groups_init(struct mlxsw_sp *mlxsw_sp, const struct mlxsw_sp_trap_group_item **arr, size_t *p_groups_count) { *arr = mlxsw_sp2_trap_group_items_arr; *p_groups_count = ARRAY_SIZE(mlxsw_sp2_trap_group_items_arr); return 0; } static int mlxsw_sp2_traps_init(struct mlxsw_sp *mlxsw_sp, const struct mlxsw_sp_trap_item **arr, size_t *p_traps_count) { *arr = mlxsw_sp2_trap_items_arr; *p_traps_count = ARRAY_SIZE(mlxsw_sp2_trap_items_arr); return 0; } const struct mlxsw_sp_trap_ops mlxsw_sp2_trap_ops = { .groups_init = mlxsw_sp2_trap_groups_init, .traps_init = mlxsw_sp2_traps_init, };
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