diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c | 1952 |
1 files changed, 1952 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c new file mode 100644 index 0000000000..1b9bc32efd --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c @@ -0,0 +1,1952 @@ +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB +/* Copyright (c) 2021 Mellanox Technologies. */ + +#include <linux/build_bug.h> +#include <linux/list.h> +#include <linux/notifier.h> +#include <net/netevent.h> +#include <net/switchdev.h> +#include "lib/devcom.h" +#include "bridge.h" +#include "eswitch.h" +#include "bridge_priv.h" +#define CREATE_TRACE_POINTS +#include "diag/bridge_tracepoint.h" + +static const struct rhashtable_params fdb_ht_params = { + .key_offset = offsetof(struct mlx5_esw_bridge_fdb_entry, key), + .key_len = sizeof(struct mlx5_esw_bridge_fdb_key), + .head_offset = offsetof(struct mlx5_esw_bridge_fdb_entry, ht_node), + .automatic_shrinking = true, +}; + +static void +mlx5_esw_bridge_fdb_offload_notify(struct net_device *dev, const unsigned char *addr, u16 vid, + unsigned long val) +{ + struct switchdev_notifier_fdb_info send_info = {}; + + send_info.addr = addr; + send_info.vid = vid; + send_info.offloaded = true; + call_switchdev_notifiers(val, dev, &send_info.info, NULL); +} + +static void +mlx5_esw_bridge_fdb_del_notify(struct mlx5_esw_bridge_fdb_entry *entry) +{ + if (!(entry->flags & (MLX5_ESW_BRIDGE_FLAG_ADDED_BY_USER | MLX5_ESW_BRIDGE_FLAG_PEER))) + mlx5_esw_bridge_fdb_offload_notify(entry->dev, entry->key.addr, + entry->key.vid, + SWITCHDEV_FDB_DEL_TO_BRIDGE); +} + +static bool mlx5_esw_bridge_pkt_reformat_vlan_pop_supported(struct mlx5_eswitch *esw) +{ + return BIT(MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, reformat_remove)) && + MLX5_CAP_GEN_2(esw->dev, max_reformat_remove_size) >= sizeof(struct vlan_hdr) && + MLX5_CAP_GEN_2(esw->dev, max_reformat_remove_offset) >= + offsetof(struct vlan_ethhdr, h_vlan_proto); +} + +static struct mlx5_pkt_reformat * +mlx5_esw_bridge_pkt_reformat_vlan_pop_create(struct mlx5_eswitch *esw) +{ + struct mlx5_pkt_reformat_params reformat_params = {}; + + reformat_params.type = MLX5_REFORMAT_TYPE_REMOVE_HDR; + reformat_params.param_0 = MLX5_REFORMAT_CONTEXT_ANCHOR_MAC_START; + reformat_params.param_1 = offsetof(struct vlan_ethhdr, h_vlan_proto); + reformat_params.size = sizeof(struct vlan_hdr); + return mlx5_packet_reformat_alloc(esw->dev, &reformat_params, MLX5_FLOW_NAMESPACE_FDB); +} + +struct mlx5_flow_table * +mlx5_esw_bridge_table_create(int max_fte, u32 level, struct mlx5_eswitch *esw) +{ + struct mlx5_flow_table_attr ft_attr = {}; + struct mlx5_core_dev *dev = esw->dev; + struct mlx5_flow_namespace *ns; + struct mlx5_flow_table *fdb; + + ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_FDB); + if (!ns) { + esw_warn(dev, "Failed to get FDB namespace\n"); + return ERR_PTR(-ENOENT); + } + + ft_attr.flags = MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT; + ft_attr.max_fte = max_fte; + ft_attr.level = level; + ft_attr.prio = FDB_BR_OFFLOAD; + fdb = mlx5_create_flow_table(ns, &ft_attr); + if (IS_ERR(fdb)) + esw_warn(dev, "Failed to create bridge FDB Table (err=%ld)\n", PTR_ERR(fdb)); + + return fdb; +} + +static struct mlx5_flow_group * +mlx5_esw_bridge_ingress_vlan_proto_fg_create(unsigned int from, unsigned int to, u16 vlan_proto, + struct mlx5_eswitch *esw, + struct mlx5_flow_table *ingress_ft) +{ + int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); + struct mlx5_flow_group *fg; + u32 *in, *match; + + in = kvzalloc(inlen, GFP_KERNEL); + if (!in) + return ERR_PTR(-ENOMEM); + + MLX5_SET(create_flow_group_in, in, match_criteria_enable, + MLX5_MATCH_OUTER_HEADERS | MLX5_MATCH_MISC_PARAMETERS_2); + match = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria); + + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.smac_47_16); + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.smac_15_0); + if (vlan_proto == ETH_P_8021Q) + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.cvlan_tag); + else if (vlan_proto == ETH_P_8021AD) + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.svlan_tag); + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.first_vid); + + MLX5_SET(fte_match_param, match, misc_parameters_2.metadata_reg_c_0, + mlx5_eswitch_get_vport_metadata_mask()); + + MLX5_SET(create_flow_group_in, in, start_flow_index, from); + MLX5_SET(create_flow_group_in, in, end_flow_index, to); + + fg = mlx5_create_flow_group(ingress_ft, in); + kvfree(in); + if (IS_ERR(fg)) + esw_warn(esw->dev, + "Failed to create VLAN(proto=%x) flow group for bridge ingress table (err=%ld)\n", + vlan_proto, PTR_ERR(fg)); + + return fg; +} + +static struct mlx5_flow_group * +mlx5_esw_bridge_ingress_vlan_fg_create(struct mlx5_eswitch *esw, + struct mlx5_flow_table *ingress_ft) +{ + unsigned int from = MLX5_ESW_BRIDGE_INGRESS_TABLE_VLAN_GRP_IDX_FROM; + unsigned int to = MLX5_ESW_BRIDGE_INGRESS_TABLE_VLAN_GRP_IDX_TO; + + return mlx5_esw_bridge_ingress_vlan_proto_fg_create(from, to, ETH_P_8021Q, esw, ingress_ft); +} + +static struct mlx5_flow_group * +mlx5_esw_bridge_ingress_qinq_fg_create(struct mlx5_eswitch *esw, + struct mlx5_flow_table *ingress_ft) +{ + unsigned int from = MLX5_ESW_BRIDGE_INGRESS_TABLE_QINQ_GRP_IDX_FROM; + unsigned int to = MLX5_ESW_BRIDGE_INGRESS_TABLE_QINQ_GRP_IDX_TO; + + return mlx5_esw_bridge_ingress_vlan_proto_fg_create(from, to, ETH_P_8021AD, esw, + ingress_ft); +} + +static struct mlx5_flow_group * +mlx5_esw_bridge_ingress_vlan_proto_filter_fg_create(unsigned int from, unsigned int to, + u16 vlan_proto, struct mlx5_eswitch *esw, + struct mlx5_flow_table *ingress_ft) +{ + int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); + struct mlx5_flow_group *fg; + u32 *in, *match; + + in = kvzalloc(inlen, GFP_KERNEL); + if (!in) + return ERR_PTR(-ENOMEM); + + MLX5_SET(create_flow_group_in, in, match_criteria_enable, + MLX5_MATCH_OUTER_HEADERS | MLX5_MATCH_MISC_PARAMETERS_2); + match = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria); + + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.smac_47_16); + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.smac_15_0); + if (vlan_proto == ETH_P_8021Q) + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.cvlan_tag); + else if (vlan_proto == ETH_P_8021AD) + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.svlan_tag); + MLX5_SET(fte_match_param, match, misc_parameters_2.metadata_reg_c_0, + mlx5_eswitch_get_vport_metadata_mask()); + + MLX5_SET(create_flow_group_in, in, start_flow_index, from); + MLX5_SET(create_flow_group_in, in, end_flow_index, to); + + fg = mlx5_create_flow_group(ingress_ft, in); + if (IS_ERR(fg)) + esw_warn(esw->dev, + "Failed to create bridge ingress table VLAN filter flow group (err=%ld)\n", + PTR_ERR(fg)); + kvfree(in); + return fg; +} + +static struct mlx5_flow_group * +mlx5_esw_bridge_ingress_vlan_filter_fg_create(struct mlx5_eswitch *esw, + struct mlx5_flow_table *ingress_ft) +{ + unsigned int from = MLX5_ESW_BRIDGE_INGRESS_TABLE_VLAN_FILTER_GRP_IDX_FROM; + unsigned int to = MLX5_ESW_BRIDGE_INGRESS_TABLE_VLAN_FILTER_GRP_IDX_TO; + + return mlx5_esw_bridge_ingress_vlan_proto_filter_fg_create(from, to, ETH_P_8021Q, esw, + ingress_ft); +} + +static struct mlx5_flow_group * +mlx5_esw_bridge_ingress_qinq_filter_fg_create(struct mlx5_eswitch *esw, + struct mlx5_flow_table *ingress_ft) +{ + unsigned int from = MLX5_ESW_BRIDGE_INGRESS_TABLE_QINQ_FILTER_GRP_IDX_FROM; + unsigned int to = MLX5_ESW_BRIDGE_INGRESS_TABLE_QINQ_FILTER_GRP_IDX_TO; + + return mlx5_esw_bridge_ingress_vlan_proto_filter_fg_create(from, to, ETH_P_8021AD, esw, + ingress_ft); +} + +static struct mlx5_flow_group * +mlx5_esw_bridge_ingress_mac_fg_create(struct mlx5_eswitch *esw, struct mlx5_flow_table *ingress_ft) +{ + int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); + struct mlx5_flow_group *fg; + u32 *in, *match; + + in = kvzalloc(inlen, GFP_KERNEL); + if (!in) + return ERR_PTR(-ENOMEM); + + MLX5_SET(create_flow_group_in, in, match_criteria_enable, + MLX5_MATCH_OUTER_HEADERS | MLX5_MATCH_MISC_PARAMETERS_2); + match = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria); + + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.smac_47_16); + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.smac_15_0); + + MLX5_SET(fte_match_param, match, misc_parameters_2.metadata_reg_c_0, + mlx5_eswitch_get_vport_metadata_mask()); + + MLX5_SET(create_flow_group_in, in, start_flow_index, + MLX5_ESW_BRIDGE_INGRESS_TABLE_MAC_GRP_IDX_FROM); + MLX5_SET(create_flow_group_in, in, end_flow_index, + MLX5_ESW_BRIDGE_INGRESS_TABLE_MAC_GRP_IDX_TO); + + fg = mlx5_create_flow_group(ingress_ft, in); + if (IS_ERR(fg)) + esw_warn(esw->dev, + "Failed to create MAC flow group for bridge ingress table (err=%ld)\n", + PTR_ERR(fg)); + + kvfree(in); + return fg; +} + +static struct mlx5_flow_group * +mlx5_esw_bridge_egress_vlan_proto_fg_create(unsigned int from, unsigned int to, u16 vlan_proto, + struct mlx5_eswitch *esw, + struct mlx5_flow_table *egress_ft) +{ + int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); + struct mlx5_flow_group *fg; + u32 *in, *match; + + in = kvzalloc(inlen, GFP_KERNEL); + if (!in) + return ERR_PTR(-ENOMEM); + + MLX5_SET(create_flow_group_in, in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS); + match = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria); + + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.dmac_47_16); + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.dmac_15_0); + if (vlan_proto == ETH_P_8021Q) + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.cvlan_tag); + else if (vlan_proto == ETH_P_8021AD) + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.svlan_tag); + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.first_vid); + + MLX5_SET(create_flow_group_in, in, start_flow_index, from); + MLX5_SET(create_flow_group_in, in, end_flow_index, to); + + fg = mlx5_create_flow_group(egress_ft, in); + if (IS_ERR(fg)) + esw_warn(esw->dev, + "Failed to create VLAN flow group for bridge egress table (err=%ld)\n", + PTR_ERR(fg)); + kvfree(in); + return fg; +} + +static struct mlx5_flow_group * +mlx5_esw_bridge_egress_vlan_fg_create(struct mlx5_eswitch *esw, struct mlx5_flow_table *egress_ft) +{ + unsigned int from = MLX5_ESW_BRIDGE_EGRESS_TABLE_VLAN_GRP_IDX_FROM; + unsigned int to = MLX5_ESW_BRIDGE_EGRESS_TABLE_VLAN_GRP_IDX_TO; + + return mlx5_esw_bridge_egress_vlan_proto_fg_create(from, to, ETH_P_8021Q, esw, egress_ft); +} + +static struct mlx5_flow_group * +mlx5_esw_bridge_egress_qinq_fg_create(struct mlx5_eswitch *esw, + struct mlx5_flow_table *egress_ft) +{ + unsigned int from = MLX5_ESW_BRIDGE_EGRESS_TABLE_QINQ_GRP_IDX_FROM; + unsigned int to = MLX5_ESW_BRIDGE_EGRESS_TABLE_QINQ_GRP_IDX_TO; + + return mlx5_esw_bridge_egress_vlan_proto_fg_create(from, to, ETH_P_8021AD, esw, egress_ft); +} + +static struct mlx5_flow_group * +mlx5_esw_bridge_egress_mac_fg_create(struct mlx5_eswitch *esw, struct mlx5_flow_table *egress_ft) +{ + int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); + struct mlx5_flow_group *fg; + u32 *in, *match; + + in = kvzalloc(inlen, GFP_KERNEL); + if (!in) + return ERR_PTR(-ENOMEM); + + MLX5_SET(create_flow_group_in, in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS); + match = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria); + + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.dmac_47_16); + MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.dmac_15_0); + + MLX5_SET(create_flow_group_in, in, start_flow_index, + MLX5_ESW_BRIDGE_EGRESS_TABLE_MAC_GRP_IDX_FROM); + MLX5_SET(create_flow_group_in, in, end_flow_index, + MLX5_ESW_BRIDGE_EGRESS_TABLE_MAC_GRP_IDX_TO); + + fg = mlx5_create_flow_group(egress_ft, in); + if (IS_ERR(fg)) + esw_warn(esw->dev, + "Failed to create bridge egress table MAC flow group (err=%ld)\n", + PTR_ERR(fg)); + kvfree(in); + return fg; +} + +static struct mlx5_flow_group * +mlx5_esw_bridge_egress_miss_fg_create(struct mlx5_eswitch *esw, struct mlx5_flow_table *egress_ft) +{ + int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); + struct mlx5_flow_group *fg; + u32 *in, *match; + + in = kvzalloc(inlen, GFP_KERNEL); + if (!in) + return ERR_PTR(-ENOMEM); + + MLX5_SET(create_flow_group_in, in, match_criteria_enable, MLX5_MATCH_MISC_PARAMETERS_2); + match = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria); + + MLX5_SET(fte_match_param, match, misc_parameters_2.metadata_reg_c_1, ESW_TUN_MASK); + + MLX5_SET(create_flow_group_in, in, start_flow_index, + MLX5_ESW_BRIDGE_EGRESS_TABLE_MISS_GRP_IDX_FROM); + MLX5_SET(create_flow_group_in, in, end_flow_index, + MLX5_ESW_BRIDGE_EGRESS_TABLE_MISS_GRP_IDX_TO); + + fg = mlx5_create_flow_group(egress_ft, in); + if (IS_ERR(fg)) + esw_warn(esw->dev, + "Failed to create bridge egress table miss flow group (err=%ld)\n", + PTR_ERR(fg)); + kvfree(in); + return fg; +} + +static int +mlx5_esw_bridge_ingress_table_init(struct mlx5_esw_bridge_offloads *br_offloads) +{ + struct mlx5_flow_group *mac_fg, *qinq_filter_fg, *qinq_fg, *vlan_filter_fg, *vlan_fg; + struct mlx5_flow_table *ingress_ft, *skip_ft; + struct mlx5_eswitch *esw = br_offloads->esw; + int err; + + if (!mlx5_eswitch_vport_match_metadata_enabled(esw)) + return -EOPNOTSUPP; + + ingress_ft = mlx5_esw_bridge_table_create(MLX5_ESW_BRIDGE_INGRESS_TABLE_SIZE, + MLX5_ESW_BRIDGE_LEVEL_INGRESS_TABLE, + esw); + if (IS_ERR(ingress_ft)) + return PTR_ERR(ingress_ft); + + skip_ft = mlx5_esw_bridge_table_create(MLX5_ESW_BRIDGE_SKIP_TABLE_SIZE, + MLX5_ESW_BRIDGE_LEVEL_SKIP_TABLE, + esw); + if (IS_ERR(skip_ft)) { + err = PTR_ERR(skip_ft); + goto err_skip_tbl; + } + + vlan_fg = mlx5_esw_bridge_ingress_vlan_fg_create(esw, ingress_ft); + if (IS_ERR(vlan_fg)) { + err = PTR_ERR(vlan_fg); + goto err_vlan_fg; + } + + vlan_filter_fg = mlx5_esw_bridge_ingress_vlan_filter_fg_create(esw, ingress_ft); + if (IS_ERR(vlan_filter_fg)) { + err = PTR_ERR(vlan_filter_fg); + goto err_vlan_filter_fg; + } + + qinq_fg = mlx5_esw_bridge_ingress_qinq_fg_create(esw, ingress_ft); + if (IS_ERR(qinq_fg)) { + err = PTR_ERR(qinq_fg); + goto err_qinq_fg; + } + + qinq_filter_fg = mlx5_esw_bridge_ingress_qinq_filter_fg_create(esw, ingress_ft); + if (IS_ERR(qinq_filter_fg)) { + err = PTR_ERR(qinq_filter_fg); + goto err_qinq_filter_fg; + } + + mac_fg = mlx5_esw_bridge_ingress_mac_fg_create(esw, ingress_ft); + if (IS_ERR(mac_fg)) { + err = PTR_ERR(mac_fg); + goto err_mac_fg; + } + + br_offloads->ingress_ft = ingress_ft; + br_offloads->skip_ft = skip_ft; + br_offloads->ingress_vlan_fg = vlan_fg; + br_offloads->ingress_vlan_filter_fg = vlan_filter_fg; + br_offloads->ingress_qinq_fg = qinq_fg; + br_offloads->ingress_qinq_filter_fg = qinq_filter_fg; + br_offloads->ingress_mac_fg = mac_fg; + return 0; + +err_mac_fg: + mlx5_destroy_flow_group(qinq_filter_fg); +err_qinq_filter_fg: + mlx5_destroy_flow_group(qinq_fg); +err_qinq_fg: + mlx5_destroy_flow_group(vlan_filter_fg); +err_vlan_filter_fg: + mlx5_destroy_flow_group(vlan_fg); +err_vlan_fg: + mlx5_destroy_flow_table(skip_ft); +err_skip_tbl: + mlx5_destroy_flow_table(ingress_ft); + return err; +} + +static void +mlx5_esw_bridge_ingress_table_cleanup(struct mlx5_esw_bridge_offloads *br_offloads) +{ + mlx5_destroy_flow_group(br_offloads->ingress_mac_fg); + br_offloads->ingress_mac_fg = NULL; + mlx5_destroy_flow_group(br_offloads->ingress_qinq_filter_fg); + br_offloads->ingress_qinq_filter_fg = NULL; + mlx5_destroy_flow_group(br_offloads->ingress_qinq_fg); + br_offloads->ingress_qinq_fg = NULL; + mlx5_destroy_flow_group(br_offloads->ingress_vlan_filter_fg); + br_offloads->ingress_vlan_filter_fg = NULL; + mlx5_destroy_flow_group(br_offloads->ingress_vlan_fg); + br_offloads->ingress_vlan_fg = NULL; + mlx5_destroy_flow_table(br_offloads->skip_ft); + br_offloads->skip_ft = NULL; + mlx5_destroy_flow_table(br_offloads->ingress_ft); + br_offloads->ingress_ft = NULL; +} + +static struct mlx5_flow_handle * +mlx5_esw_bridge_egress_miss_flow_create(struct mlx5_flow_table *egress_ft, + struct mlx5_flow_table *skip_ft, + struct mlx5_pkt_reformat *pkt_reformat); + +static int +mlx5_esw_bridge_egress_table_init(struct mlx5_esw_bridge_offloads *br_offloads, + struct mlx5_esw_bridge *bridge) +{ + struct mlx5_flow_group *miss_fg = NULL, *mac_fg, *vlan_fg, *qinq_fg; + struct mlx5_pkt_reformat *miss_pkt_reformat = NULL; + struct mlx5_flow_handle *miss_handle = NULL; + struct mlx5_eswitch *esw = br_offloads->esw; + struct mlx5_flow_table *egress_ft; + int err; + + egress_ft = mlx5_esw_bridge_table_create(MLX5_ESW_BRIDGE_EGRESS_TABLE_SIZE, + MLX5_ESW_BRIDGE_LEVEL_EGRESS_TABLE, + esw); + if (IS_ERR(egress_ft)) + return PTR_ERR(egress_ft); + + vlan_fg = mlx5_esw_bridge_egress_vlan_fg_create(esw, egress_ft); + if (IS_ERR(vlan_fg)) { + err = PTR_ERR(vlan_fg); + goto err_vlan_fg; + } + + qinq_fg = mlx5_esw_bridge_egress_qinq_fg_create(esw, egress_ft); + if (IS_ERR(qinq_fg)) { + err = PTR_ERR(qinq_fg); + goto err_qinq_fg; + } + + mac_fg = mlx5_esw_bridge_egress_mac_fg_create(esw, egress_ft); + if (IS_ERR(mac_fg)) { + err = PTR_ERR(mac_fg); + goto err_mac_fg; + } + + if (mlx5_esw_bridge_pkt_reformat_vlan_pop_supported(esw)) { + miss_fg = mlx5_esw_bridge_egress_miss_fg_create(esw, egress_ft); + if (IS_ERR(miss_fg)) { + esw_warn(esw->dev, "Failed to create miss flow group (err=%ld)\n", + PTR_ERR(miss_fg)); + miss_fg = NULL; + goto skip_miss_flow; + } + + miss_pkt_reformat = mlx5_esw_bridge_pkt_reformat_vlan_pop_create(esw); + if (IS_ERR(miss_pkt_reformat)) { + esw_warn(esw->dev, + "Failed to alloc packet reformat REMOVE_HEADER (err=%ld)\n", + PTR_ERR(miss_pkt_reformat)); + miss_pkt_reformat = NULL; + mlx5_destroy_flow_group(miss_fg); + miss_fg = NULL; + goto skip_miss_flow; + } + + miss_handle = mlx5_esw_bridge_egress_miss_flow_create(egress_ft, + br_offloads->skip_ft, + miss_pkt_reformat); + if (IS_ERR(miss_handle)) { + esw_warn(esw->dev, "Failed to create miss flow (err=%ld)\n", + PTR_ERR(miss_handle)); + miss_handle = NULL; + mlx5_packet_reformat_dealloc(esw->dev, miss_pkt_reformat); + miss_pkt_reformat = NULL; + mlx5_destroy_flow_group(miss_fg); + miss_fg = NULL; + goto skip_miss_flow; + } + } +skip_miss_flow: + + bridge->egress_ft = egress_ft; + bridge->egress_vlan_fg = vlan_fg; + bridge->egress_qinq_fg = qinq_fg; + bridge->egress_mac_fg = mac_fg; + bridge->egress_miss_fg = miss_fg; + bridge->egress_miss_pkt_reformat = miss_pkt_reformat; + bridge->egress_miss_handle = miss_handle; + return 0; + +err_mac_fg: + mlx5_destroy_flow_group(qinq_fg); +err_qinq_fg: + mlx5_destroy_flow_group(vlan_fg); +err_vlan_fg: + mlx5_destroy_flow_table(egress_ft); + return err; +} + +static void +mlx5_esw_bridge_egress_table_cleanup(struct mlx5_esw_bridge *bridge) +{ + if (bridge->egress_miss_handle) + mlx5_del_flow_rules(bridge->egress_miss_handle); + if (bridge->egress_miss_pkt_reformat) + mlx5_packet_reformat_dealloc(bridge->br_offloads->esw->dev, + bridge->egress_miss_pkt_reformat); + if (bridge->egress_miss_fg) + mlx5_destroy_flow_group(bridge->egress_miss_fg); + mlx5_destroy_flow_group(bridge->egress_mac_fg); + mlx5_destroy_flow_group(bridge->egress_qinq_fg); + mlx5_destroy_flow_group(bridge->egress_vlan_fg); + mlx5_destroy_flow_table(bridge->egress_ft); +} + +static struct mlx5_flow_handle * +mlx5_esw_bridge_ingress_flow_with_esw_create(u16 vport_num, const unsigned char *addr, + struct mlx5_esw_bridge_vlan *vlan, u32 counter_id, + struct mlx5_esw_bridge *bridge, + struct mlx5_eswitch *esw) +{ + struct mlx5_esw_bridge_offloads *br_offloads = bridge->br_offloads; + struct mlx5_flow_act flow_act = { + .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | MLX5_FLOW_CONTEXT_ACTION_COUNT, + .flags = FLOW_ACT_NO_APPEND, + }; + struct mlx5_flow_destination dests[2] = {}; + struct mlx5_flow_spec *rule_spec; + struct mlx5_flow_handle *handle; + u8 *smac_v, *smac_c; + + rule_spec = kvzalloc(sizeof(*rule_spec), GFP_KERNEL); + if (!rule_spec) + return ERR_PTR(-ENOMEM); + + rule_spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS | MLX5_MATCH_MISC_PARAMETERS_2; + + smac_v = MLX5_ADDR_OF(fte_match_param, rule_spec->match_value, + outer_headers.smac_47_16); + ether_addr_copy(smac_v, addr); + smac_c = MLX5_ADDR_OF(fte_match_param, rule_spec->match_criteria, + outer_headers.smac_47_16); + eth_broadcast_addr(smac_c); + + MLX5_SET(fte_match_param, rule_spec->match_criteria, + misc_parameters_2.metadata_reg_c_0, mlx5_eswitch_get_vport_metadata_mask()); + MLX5_SET(fte_match_param, rule_spec->match_value, misc_parameters_2.metadata_reg_c_0, + mlx5_eswitch_get_vport_metadata_for_match(esw, vport_num)); + + if (vlan && vlan->pkt_reformat_push) { + flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT | + MLX5_FLOW_CONTEXT_ACTION_MOD_HDR; + flow_act.pkt_reformat = vlan->pkt_reformat_push; + flow_act.modify_hdr = vlan->pkt_mod_hdr_push_mark; + } else if (vlan) { + if (bridge->vlan_proto == ETH_P_8021Q) { + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_criteria, + outer_headers.cvlan_tag); + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_value, + outer_headers.cvlan_tag); + } else if (bridge->vlan_proto == ETH_P_8021AD) { + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_criteria, + outer_headers.svlan_tag); + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_value, + outer_headers.svlan_tag); + } + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_criteria, + outer_headers.first_vid); + MLX5_SET(fte_match_param, rule_spec->match_value, outer_headers.first_vid, + vlan->vid); + } + + dests[0].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; + dests[0].ft = bridge->egress_ft; + dests[1].type = MLX5_FLOW_DESTINATION_TYPE_COUNTER; + dests[1].counter_id = counter_id; + + handle = mlx5_add_flow_rules(br_offloads->ingress_ft, rule_spec, &flow_act, dests, + ARRAY_SIZE(dests)); + + kvfree(rule_spec); + return handle; +} + +static struct mlx5_flow_handle * +mlx5_esw_bridge_ingress_flow_create(u16 vport_num, const unsigned char *addr, + struct mlx5_esw_bridge_vlan *vlan, u32 counter_id, + struct mlx5_esw_bridge *bridge) +{ + return mlx5_esw_bridge_ingress_flow_with_esw_create(vport_num, addr, vlan, counter_id, + bridge, bridge->br_offloads->esw); +} + +static struct mlx5_flow_handle * +mlx5_esw_bridge_ingress_flow_peer_create(u16 vport_num, u16 esw_owner_vhca_id, + const unsigned char *addr, + struct mlx5_esw_bridge_vlan *vlan, u32 counter_id, + struct mlx5_esw_bridge *bridge) +{ + struct mlx5_devcom_comp_dev *devcom = bridge->br_offloads->esw->devcom, *pos; + struct mlx5_eswitch *tmp, *peer_esw = NULL; + static struct mlx5_flow_handle *handle; + + if (!mlx5_devcom_for_each_peer_begin(devcom)) + return ERR_PTR(-ENODEV); + + mlx5_devcom_for_each_peer_entry(devcom, tmp, pos) { + if (mlx5_esw_is_owner(tmp, vport_num, esw_owner_vhca_id)) { + peer_esw = tmp; + break; + } + } + + if (!peer_esw) { + handle = ERR_PTR(-ENODEV); + goto out; + } + + handle = mlx5_esw_bridge_ingress_flow_with_esw_create(vport_num, addr, vlan, counter_id, + bridge, peer_esw); + +out: + mlx5_devcom_for_each_peer_end(devcom); + return handle; +} + +static struct mlx5_flow_handle * +mlx5_esw_bridge_ingress_filter_flow_create(u16 vport_num, const unsigned char *addr, + struct mlx5_esw_bridge *bridge) +{ + struct mlx5_esw_bridge_offloads *br_offloads = bridge->br_offloads; + struct mlx5_flow_destination dest = { + .type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE, + .ft = br_offloads->skip_ft, + }; + struct mlx5_flow_act flow_act = { + .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST, + .flags = FLOW_ACT_NO_APPEND, + }; + struct mlx5_flow_spec *rule_spec; + struct mlx5_flow_handle *handle; + u8 *smac_v, *smac_c; + + rule_spec = kvzalloc(sizeof(*rule_spec), GFP_KERNEL); + if (!rule_spec) + return ERR_PTR(-ENOMEM); + + rule_spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS | MLX5_MATCH_MISC_PARAMETERS_2; + + smac_v = MLX5_ADDR_OF(fte_match_param, rule_spec->match_value, + outer_headers.smac_47_16); + ether_addr_copy(smac_v, addr); + smac_c = MLX5_ADDR_OF(fte_match_param, rule_spec->match_criteria, + outer_headers.smac_47_16); + eth_broadcast_addr(smac_c); + + MLX5_SET(fte_match_param, rule_spec->match_criteria, + misc_parameters_2.metadata_reg_c_0, mlx5_eswitch_get_vport_metadata_mask()); + MLX5_SET(fte_match_param, rule_spec->match_value, misc_parameters_2.metadata_reg_c_0, + mlx5_eswitch_get_vport_metadata_for_match(br_offloads->esw, vport_num)); + + if (bridge->vlan_proto == ETH_P_8021Q) { + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_criteria, + outer_headers.cvlan_tag); + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_value, + outer_headers.cvlan_tag); + } else if (bridge->vlan_proto == ETH_P_8021AD) { + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_criteria, + outer_headers.svlan_tag); + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_value, + outer_headers.svlan_tag); + } + + handle = mlx5_add_flow_rules(br_offloads->ingress_ft, rule_spec, &flow_act, &dest, 1); + + kvfree(rule_spec); + return handle; +} + +static struct mlx5_flow_handle * +mlx5_esw_bridge_egress_flow_create(u16 vport_num, u16 esw_owner_vhca_id, const unsigned char *addr, + struct mlx5_esw_bridge_vlan *vlan, + struct mlx5_esw_bridge *bridge) +{ + struct mlx5_flow_destination dest = { + .type = MLX5_FLOW_DESTINATION_TYPE_VPORT, + .vport.num = vport_num, + }; + struct mlx5_flow_act flow_act = { + .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST, + .flags = FLOW_ACT_NO_APPEND, + }; + struct mlx5_flow_spec *rule_spec; + struct mlx5_flow_handle *handle; + u8 *dmac_v, *dmac_c; + + rule_spec = kvzalloc(sizeof(*rule_spec), GFP_KERNEL); + if (!rule_spec) + return ERR_PTR(-ENOMEM); + + if (MLX5_CAP_ESW_FLOWTABLE(bridge->br_offloads->esw->dev, flow_source) && + vport_num == MLX5_VPORT_UPLINK) + rule_spec->flow_context.flow_source = + MLX5_FLOW_CONTEXT_FLOW_SOURCE_LOCAL_VPORT; + rule_spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS; + + dmac_v = MLX5_ADDR_OF(fte_match_param, rule_spec->match_value, + outer_headers.dmac_47_16); + ether_addr_copy(dmac_v, addr); + dmac_c = MLX5_ADDR_OF(fte_match_param, rule_spec->match_criteria, + outer_headers.dmac_47_16); + eth_broadcast_addr(dmac_c); + + if (vlan) { + if (vlan->pkt_reformat_pop) { + flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT; + flow_act.pkt_reformat = vlan->pkt_reformat_pop; + } + + if (bridge->vlan_proto == ETH_P_8021Q) { + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_criteria, + outer_headers.cvlan_tag); + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_value, + outer_headers.cvlan_tag); + } else if (bridge->vlan_proto == ETH_P_8021AD) { + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_criteria, + outer_headers.svlan_tag); + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_value, + outer_headers.svlan_tag); + } + MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_criteria, + outer_headers.first_vid); + MLX5_SET(fte_match_param, rule_spec->match_value, outer_headers.first_vid, + vlan->vid); + } + + if (MLX5_CAP_ESW(bridge->br_offloads->esw->dev, merged_eswitch)) { + dest.vport.flags = MLX5_FLOW_DEST_VPORT_VHCA_ID; + dest.vport.vhca_id = esw_owner_vhca_id; + } + handle = mlx5_add_flow_rules(bridge->egress_ft, rule_spec, &flow_act, &dest, 1); + + kvfree(rule_spec); + return handle; +} + +static struct mlx5_flow_handle * +mlx5_esw_bridge_egress_miss_flow_create(struct mlx5_flow_table *egress_ft, + struct mlx5_flow_table *skip_ft, + struct mlx5_pkt_reformat *pkt_reformat) +{ + struct mlx5_flow_destination dest = { + .type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE, + .ft = skip_ft, + }; + struct mlx5_flow_act flow_act = { + .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | + MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT, + .flags = FLOW_ACT_NO_APPEND, + .pkt_reformat = pkt_reformat, + }; + struct mlx5_flow_spec *rule_spec; + struct mlx5_flow_handle *handle; + + rule_spec = kvzalloc(sizeof(*rule_spec), GFP_KERNEL); + if (!rule_spec) + return ERR_PTR(-ENOMEM); + + rule_spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS_2; + + MLX5_SET(fte_match_param, rule_spec->match_criteria, + misc_parameters_2.metadata_reg_c_1, ESW_TUN_MASK); + MLX5_SET(fte_match_param, rule_spec->match_value, misc_parameters_2.metadata_reg_c_1, + ESW_TUN_BRIDGE_INGRESS_PUSH_VLAN_MARK); + + handle = mlx5_add_flow_rules(egress_ft, rule_spec, &flow_act, &dest, 1); + + kvfree(rule_spec); + return handle; +} + +static struct mlx5_esw_bridge *mlx5_esw_bridge_create(struct net_device *br_netdev, + struct mlx5_esw_bridge_offloads *br_offloads) +{ + struct mlx5_esw_bridge *bridge; + int err; + + bridge = kvzalloc(sizeof(*bridge), GFP_KERNEL); + if (!bridge) + return ERR_PTR(-ENOMEM); + + bridge->br_offloads = br_offloads; + err = mlx5_esw_bridge_egress_table_init(br_offloads, bridge); + if (err) + goto err_egress_tbl; + + err = rhashtable_init(&bridge->fdb_ht, &fdb_ht_params); + if (err) + goto err_fdb_ht; + + err = mlx5_esw_bridge_mdb_init(bridge); + if (err) + goto err_mdb_ht; + + INIT_LIST_HEAD(&bridge->fdb_list); + bridge->ifindex = br_netdev->ifindex; + bridge->refcnt = 1; + bridge->ageing_time = clock_t_to_jiffies(BR_DEFAULT_AGEING_TIME); + bridge->vlan_proto = ETH_P_8021Q; + list_add(&bridge->list, &br_offloads->bridges); + mlx5_esw_bridge_debugfs_init(br_netdev, bridge); + + return bridge; + +err_mdb_ht: + rhashtable_destroy(&bridge->fdb_ht); +err_fdb_ht: + mlx5_esw_bridge_egress_table_cleanup(bridge); +err_egress_tbl: + kvfree(bridge); + return ERR_PTR(err); +} + +static void mlx5_esw_bridge_get(struct mlx5_esw_bridge *bridge) +{ + bridge->refcnt++; +} + +static void mlx5_esw_bridge_put(struct mlx5_esw_bridge_offloads *br_offloads, + struct mlx5_esw_bridge *bridge) +{ + if (--bridge->refcnt) + return; + + mlx5_esw_bridge_debugfs_cleanup(bridge); + mlx5_esw_bridge_egress_table_cleanup(bridge); + mlx5_esw_bridge_mcast_disable(bridge); + list_del(&bridge->list); + mlx5_esw_bridge_mdb_cleanup(bridge); + rhashtable_destroy(&bridge->fdb_ht); + kvfree(bridge); + + if (list_empty(&br_offloads->bridges)) + mlx5_esw_bridge_ingress_table_cleanup(br_offloads); +} + +static struct mlx5_esw_bridge * +mlx5_esw_bridge_lookup(struct net_device *br_netdev, struct mlx5_esw_bridge_offloads *br_offloads) +{ + struct mlx5_esw_bridge *bridge; + + ASSERT_RTNL(); + + list_for_each_entry(bridge, &br_offloads->bridges, list) { + if (bridge->ifindex == br_netdev->ifindex) { + mlx5_esw_bridge_get(bridge); + return bridge; + } + } + + if (!br_offloads->ingress_ft) { + int err = mlx5_esw_bridge_ingress_table_init(br_offloads); + + if (err) + return ERR_PTR(err); + } + + bridge = mlx5_esw_bridge_create(br_netdev, br_offloads); + if (IS_ERR(bridge) && list_empty(&br_offloads->bridges)) + mlx5_esw_bridge_ingress_table_cleanup(br_offloads); + return bridge; +} + +static unsigned long mlx5_esw_bridge_port_key_from_data(u16 vport_num, u16 esw_owner_vhca_id) +{ + return vport_num | (unsigned long)esw_owner_vhca_id << sizeof(vport_num) * BITS_PER_BYTE; +} + +unsigned long mlx5_esw_bridge_port_key(struct mlx5_esw_bridge_port *port) +{ + return mlx5_esw_bridge_port_key_from_data(port->vport_num, port->esw_owner_vhca_id); +} + +static int mlx5_esw_bridge_port_insert(struct mlx5_esw_bridge_port *port, + struct mlx5_esw_bridge_offloads *br_offloads) +{ + return xa_insert(&br_offloads->ports, mlx5_esw_bridge_port_key(port), port, GFP_KERNEL); +} + +static struct mlx5_esw_bridge_port * +mlx5_esw_bridge_port_lookup(u16 vport_num, u16 esw_owner_vhca_id, + struct mlx5_esw_bridge_offloads *br_offloads) +{ + return xa_load(&br_offloads->ports, mlx5_esw_bridge_port_key_from_data(vport_num, + esw_owner_vhca_id)); +} + +static void mlx5_esw_bridge_port_erase(struct mlx5_esw_bridge_port *port, + struct mlx5_esw_bridge_offloads *br_offloads) +{ + xa_erase(&br_offloads->ports, mlx5_esw_bridge_port_key(port)); +} + +static struct mlx5_esw_bridge * +mlx5_esw_bridge_from_port_lookup(u16 vport_num, u16 esw_owner_vhca_id, + struct mlx5_esw_bridge_offloads *br_offloads) +{ + struct mlx5_esw_bridge_port *port; + + port = mlx5_esw_bridge_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!port) + return NULL; + + return port->bridge; +} + +static void mlx5_esw_bridge_fdb_entry_refresh(struct mlx5_esw_bridge_fdb_entry *entry) +{ + trace_mlx5_esw_bridge_fdb_entry_refresh(entry); + + mlx5_esw_bridge_fdb_offload_notify(entry->dev, entry->key.addr, + entry->key.vid, + SWITCHDEV_FDB_ADD_TO_BRIDGE); +} + +static void +mlx5_esw_bridge_fdb_entry_cleanup(struct mlx5_esw_bridge_fdb_entry *entry, + struct mlx5_esw_bridge *bridge) +{ + trace_mlx5_esw_bridge_fdb_entry_cleanup(entry); + + rhashtable_remove_fast(&bridge->fdb_ht, &entry->ht_node, fdb_ht_params); + mlx5_del_flow_rules(entry->egress_handle); + if (entry->filter_handle) + mlx5_del_flow_rules(entry->filter_handle); + mlx5_del_flow_rules(entry->ingress_handle); + mlx5_fc_destroy(bridge->br_offloads->esw->dev, entry->ingress_counter); + list_del(&entry->vlan_list); + list_del(&entry->list); + kvfree(entry); +} + +static void +mlx5_esw_bridge_fdb_entry_notify_and_cleanup(struct mlx5_esw_bridge_fdb_entry *entry, + struct mlx5_esw_bridge *bridge) +{ + mlx5_esw_bridge_fdb_del_notify(entry); + mlx5_esw_bridge_fdb_entry_cleanup(entry, bridge); +} + +static void mlx5_esw_bridge_fdb_flush(struct mlx5_esw_bridge *bridge) +{ + struct mlx5_esw_bridge_fdb_entry *entry, *tmp; + + list_for_each_entry_safe(entry, tmp, &bridge->fdb_list, list) + mlx5_esw_bridge_fdb_entry_notify_and_cleanup(entry, bridge); +} + +static struct mlx5_esw_bridge_vlan * +mlx5_esw_bridge_vlan_lookup(u16 vid, struct mlx5_esw_bridge_port *port) +{ + return xa_load(&port->vlans, vid); +} + +static int +mlx5_esw_bridge_vlan_push_create(u16 vlan_proto, struct mlx5_esw_bridge_vlan *vlan, + struct mlx5_eswitch *esw) +{ + struct { + __be16 h_vlan_proto; + __be16 h_vlan_TCI; + } vlan_hdr = { htons(vlan_proto), htons(vlan->vid) }; + struct mlx5_pkt_reformat_params reformat_params = {}; + struct mlx5_pkt_reformat *pkt_reformat; + + if (!BIT(MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, reformat_insert)) || + MLX5_CAP_GEN_2(esw->dev, max_reformat_insert_size) < sizeof(vlan_hdr) || + MLX5_CAP_GEN_2(esw->dev, max_reformat_insert_offset) < + offsetof(struct vlan_ethhdr, h_vlan_proto)) { + esw_warn(esw->dev, "Packet reformat INSERT_HEADER is not supported\n"); + return -EOPNOTSUPP; + } + + reformat_params.type = MLX5_REFORMAT_TYPE_INSERT_HDR; + reformat_params.param_0 = MLX5_REFORMAT_CONTEXT_ANCHOR_MAC_START; + reformat_params.param_1 = offsetof(struct vlan_ethhdr, h_vlan_proto); + reformat_params.size = sizeof(vlan_hdr); + reformat_params.data = &vlan_hdr; + pkt_reformat = mlx5_packet_reformat_alloc(esw->dev, + &reformat_params, + MLX5_FLOW_NAMESPACE_FDB); + if (IS_ERR(pkt_reformat)) { + esw_warn(esw->dev, "Failed to alloc packet reformat INSERT_HEADER (err=%ld)\n", + PTR_ERR(pkt_reformat)); + return PTR_ERR(pkt_reformat); + } + + vlan->pkt_reformat_push = pkt_reformat; + return 0; +} + +static void +mlx5_esw_bridge_vlan_push_cleanup(struct mlx5_esw_bridge_vlan *vlan, struct mlx5_eswitch *esw) +{ + mlx5_packet_reformat_dealloc(esw->dev, vlan->pkt_reformat_push); + vlan->pkt_reformat_push = NULL; +} + +static int +mlx5_esw_bridge_vlan_pop_create(struct mlx5_esw_bridge_vlan *vlan, struct mlx5_eswitch *esw) +{ + struct mlx5_pkt_reformat *pkt_reformat; + + if (!mlx5_esw_bridge_pkt_reformat_vlan_pop_supported(esw)) { + esw_warn(esw->dev, "Packet reformat REMOVE_HEADER is not supported\n"); + return -EOPNOTSUPP; + } + + pkt_reformat = mlx5_esw_bridge_pkt_reformat_vlan_pop_create(esw); + if (IS_ERR(pkt_reformat)) { + esw_warn(esw->dev, "Failed to alloc packet reformat REMOVE_HEADER (err=%ld)\n", + PTR_ERR(pkt_reformat)); + return PTR_ERR(pkt_reformat); + } + + vlan->pkt_reformat_pop = pkt_reformat; + return 0; +} + +static void +mlx5_esw_bridge_vlan_pop_cleanup(struct mlx5_esw_bridge_vlan *vlan, struct mlx5_eswitch *esw) +{ + mlx5_packet_reformat_dealloc(esw->dev, vlan->pkt_reformat_pop); + vlan->pkt_reformat_pop = NULL; +} + +static int +mlx5_esw_bridge_vlan_push_mark_create(struct mlx5_esw_bridge_vlan *vlan, struct mlx5_eswitch *esw) +{ + u8 action[MLX5_UN_SZ_BYTES(set_add_copy_action_in_auto)] = {}; + struct mlx5_modify_hdr *pkt_mod_hdr; + + MLX5_SET(set_action_in, action, action_type, MLX5_ACTION_TYPE_SET); + MLX5_SET(set_action_in, action, field, MLX5_ACTION_IN_FIELD_METADATA_REG_C_1); + MLX5_SET(set_action_in, action, offset, 8); + MLX5_SET(set_action_in, action, length, ESW_TUN_OPTS_BITS + ESW_TUN_ID_BITS); + MLX5_SET(set_action_in, action, data, ESW_TUN_BRIDGE_INGRESS_PUSH_VLAN); + + pkt_mod_hdr = mlx5_modify_header_alloc(esw->dev, MLX5_FLOW_NAMESPACE_FDB, 1, action); + if (IS_ERR(pkt_mod_hdr)) + return PTR_ERR(pkt_mod_hdr); + + vlan->pkt_mod_hdr_push_mark = pkt_mod_hdr; + return 0; +} + +static void +mlx5_esw_bridge_vlan_push_mark_cleanup(struct mlx5_esw_bridge_vlan *vlan, struct mlx5_eswitch *esw) +{ + mlx5_modify_header_dealloc(esw->dev, vlan->pkt_mod_hdr_push_mark); + vlan->pkt_mod_hdr_push_mark = NULL; +} + +static int +mlx5_esw_bridge_vlan_push_pop_fhs_create(u16 vlan_proto, struct mlx5_esw_bridge_port *port, + struct mlx5_esw_bridge_vlan *vlan) +{ + return mlx5_esw_bridge_vlan_mcast_init(vlan_proto, port, vlan); +} + +static void +mlx5_esw_bridge_vlan_push_pop_fhs_cleanup(struct mlx5_esw_bridge_vlan *vlan) +{ + mlx5_esw_bridge_vlan_mcast_cleanup(vlan); +} + +static int +mlx5_esw_bridge_vlan_push_pop_create(u16 vlan_proto, u16 flags, struct mlx5_esw_bridge_port *port, + struct mlx5_esw_bridge_vlan *vlan, struct mlx5_eswitch *esw) +{ + int err; + + if (flags & BRIDGE_VLAN_INFO_PVID) { + err = mlx5_esw_bridge_vlan_push_create(vlan_proto, vlan, esw); + if (err) + return err; + + err = mlx5_esw_bridge_vlan_push_mark_create(vlan, esw); + if (err) + goto err_vlan_push_mark; + } + + if (flags & BRIDGE_VLAN_INFO_UNTAGGED) { + err = mlx5_esw_bridge_vlan_pop_create(vlan, esw); + if (err) + goto err_vlan_pop; + + err = mlx5_esw_bridge_vlan_push_pop_fhs_create(vlan_proto, port, vlan); + if (err) + goto err_vlan_pop_fhs; + } + + return 0; + +err_vlan_pop_fhs: + mlx5_esw_bridge_vlan_pop_cleanup(vlan, esw); +err_vlan_pop: + if (vlan->pkt_mod_hdr_push_mark) + mlx5_esw_bridge_vlan_push_mark_cleanup(vlan, esw); +err_vlan_push_mark: + if (vlan->pkt_reformat_push) + mlx5_esw_bridge_vlan_push_cleanup(vlan, esw); + return err; +} + +static struct mlx5_esw_bridge_vlan * +mlx5_esw_bridge_vlan_create(u16 vlan_proto, u16 vid, u16 flags, struct mlx5_esw_bridge_port *port, + struct mlx5_eswitch *esw) +{ + struct mlx5_esw_bridge_vlan *vlan; + int err; + + vlan = kvzalloc(sizeof(*vlan), GFP_KERNEL); + if (!vlan) + return ERR_PTR(-ENOMEM); + + vlan->vid = vid; + vlan->flags = flags; + INIT_LIST_HEAD(&vlan->fdb_list); + + err = mlx5_esw_bridge_vlan_push_pop_create(vlan_proto, flags, port, vlan, esw); + if (err) + goto err_vlan_push_pop; + + err = xa_insert(&port->vlans, vid, vlan, GFP_KERNEL); + if (err) + goto err_xa_insert; + + trace_mlx5_esw_bridge_vlan_create(vlan); + return vlan; + +err_xa_insert: + if (vlan->mcast_handle) + mlx5_esw_bridge_vlan_push_pop_fhs_cleanup(vlan); + if (vlan->pkt_reformat_pop) + mlx5_esw_bridge_vlan_pop_cleanup(vlan, esw); + if (vlan->pkt_mod_hdr_push_mark) + mlx5_esw_bridge_vlan_push_mark_cleanup(vlan, esw); + if (vlan->pkt_reformat_push) + mlx5_esw_bridge_vlan_push_cleanup(vlan, esw); +err_vlan_push_pop: + kvfree(vlan); + return ERR_PTR(err); +} + +static void mlx5_esw_bridge_vlan_erase(struct mlx5_esw_bridge_port *port, + struct mlx5_esw_bridge_vlan *vlan) +{ + xa_erase(&port->vlans, vlan->vid); +} + +static void mlx5_esw_bridge_vlan_flush(struct mlx5_esw_bridge_port *port, + struct mlx5_esw_bridge_vlan *vlan, + struct mlx5_esw_bridge *bridge) +{ + struct mlx5_eswitch *esw = bridge->br_offloads->esw; + struct mlx5_esw_bridge_fdb_entry *entry, *tmp; + + list_for_each_entry_safe(entry, tmp, &vlan->fdb_list, vlan_list) + mlx5_esw_bridge_fdb_entry_notify_and_cleanup(entry, bridge); + mlx5_esw_bridge_port_mdb_vlan_flush(port, vlan); + + if (vlan->mcast_handle) + mlx5_esw_bridge_vlan_push_pop_fhs_cleanup(vlan); + if (vlan->pkt_reformat_pop) + mlx5_esw_bridge_vlan_pop_cleanup(vlan, esw); + if (vlan->pkt_mod_hdr_push_mark) + mlx5_esw_bridge_vlan_push_mark_cleanup(vlan, esw); + if (vlan->pkt_reformat_push) + mlx5_esw_bridge_vlan_push_cleanup(vlan, esw); +} + +static void mlx5_esw_bridge_vlan_cleanup(struct mlx5_esw_bridge_port *port, + struct mlx5_esw_bridge_vlan *vlan, + struct mlx5_esw_bridge *bridge) +{ + trace_mlx5_esw_bridge_vlan_cleanup(vlan); + mlx5_esw_bridge_vlan_flush(port, vlan, bridge); + mlx5_esw_bridge_vlan_erase(port, vlan); + kvfree(vlan); +} + +static void mlx5_esw_bridge_port_vlans_flush(struct mlx5_esw_bridge_port *port, + struct mlx5_esw_bridge *bridge) +{ + struct mlx5_esw_bridge_vlan *vlan; + unsigned long index; + + xa_for_each(&port->vlans, index, vlan) + mlx5_esw_bridge_vlan_cleanup(port, vlan, bridge); +} + +static int mlx5_esw_bridge_port_vlans_recreate(struct mlx5_esw_bridge_port *port, + struct mlx5_esw_bridge *bridge) +{ + struct mlx5_esw_bridge_offloads *br_offloads = bridge->br_offloads; + struct mlx5_esw_bridge_vlan *vlan; + unsigned long i; + int err; + + xa_for_each(&port->vlans, i, vlan) { + mlx5_esw_bridge_vlan_flush(port, vlan, bridge); + err = mlx5_esw_bridge_vlan_push_pop_create(bridge->vlan_proto, vlan->flags, port, + vlan, br_offloads->esw); + if (err) { + esw_warn(br_offloads->esw->dev, + "Failed to create VLAN=%u(proto=%x) push/pop actions (vport=%u,err=%d)\n", + vlan->vid, bridge->vlan_proto, port->vport_num, + err); + return err; + } + } + + return 0; +} + +static int +mlx5_esw_bridge_vlans_recreate(struct mlx5_esw_bridge *bridge) +{ + struct mlx5_esw_bridge_offloads *br_offloads = bridge->br_offloads; + struct mlx5_esw_bridge_port *port; + unsigned long i; + int err; + + xa_for_each(&br_offloads->ports, i, port) { + if (port->bridge != bridge) + continue; + + err = mlx5_esw_bridge_port_vlans_recreate(port, bridge); + if (err) + return err; + } + + return 0; +} + +static struct mlx5_esw_bridge_vlan * +mlx5_esw_bridge_port_vlan_lookup(u16 vid, u16 vport_num, u16 esw_owner_vhca_id, + struct mlx5_esw_bridge *bridge, struct mlx5_eswitch *esw) +{ + struct mlx5_esw_bridge_port *port; + struct mlx5_esw_bridge_vlan *vlan; + + port = mlx5_esw_bridge_port_lookup(vport_num, esw_owner_vhca_id, bridge->br_offloads); + if (!port) { + /* FDB is added asynchronously on wq while port might have been deleted + * concurrently. Report on 'info' logging level and skip the FDB offload. + */ + esw_info(esw->dev, "Failed to lookup bridge port (vport=%u)\n", vport_num); + return ERR_PTR(-EINVAL); + } + + vlan = mlx5_esw_bridge_vlan_lookup(vid, port); + if (!vlan) { + /* FDB is added asynchronously on wq while vlan might have been deleted + * concurrently. Report on 'info' logging level and skip the FDB offload. + */ + esw_info(esw->dev, "Failed to lookup bridge port vlan metadata (vport=%u)\n", + vport_num); + return ERR_PTR(-EINVAL); + } + + return vlan; +} + +static struct mlx5_esw_bridge_fdb_entry * +mlx5_esw_bridge_fdb_lookup(struct mlx5_esw_bridge *bridge, + const unsigned char *addr, u16 vid) +{ + struct mlx5_esw_bridge_fdb_key key = {}; + + ether_addr_copy(key.addr, addr); + key.vid = vid; + return rhashtable_lookup_fast(&bridge->fdb_ht, &key, fdb_ht_params); +} + +static struct mlx5_esw_bridge_fdb_entry * +mlx5_esw_bridge_fdb_entry_init(struct net_device *dev, u16 vport_num, u16 esw_owner_vhca_id, + const unsigned char *addr, u16 vid, bool added_by_user, bool peer, + struct mlx5_eswitch *esw, struct mlx5_esw_bridge *bridge) +{ + struct mlx5_esw_bridge_vlan *vlan = NULL; + struct mlx5_esw_bridge_fdb_entry *entry; + struct mlx5_flow_handle *handle; + struct mlx5_fc *counter; + int err; + + if (bridge->flags & MLX5_ESW_BRIDGE_VLAN_FILTERING_FLAG && vid) { + vlan = mlx5_esw_bridge_port_vlan_lookup(vid, vport_num, esw_owner_vhca_id, bridge, + esw); + if (IS_ERR(vlan)) + return ERR_CAST(vlan); + } + + entry = mlx5_esw_bridge_fdb_lookup(bridge, addr, vid); + if (entry) + mlx5_esw_bridge_fdb_entry_notify_and_cleanup(entry, bridge); + + entry = kvzalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) + return ERR_PTR(-ENOMEM); + + ether_addr_copy(entry->key.addr, addr); + entry->key.vid = vid; + entry->dev = dev; + entry->vport_num = vport_num; + entry->esw_owner_vhca_id = esw_owner_vhca_id; + entry->lastuse = jiffies; + if (added_by_user) + entry->flags |= MLX5_ESW_BRIDGE_FLAG_ADDED_BY_USER; + if (peer) + entry->flags |= MLX5_ESW_BRIDGE_FLAG_PEER; + + counter = mlx5_fc_create(esw->dev, true); + if (IS_ERR(counter)) { + err = PTR_ERR(counter); + goto err_ingress_fc_create; + } + entry->ingress_counter = counter; + + handle = peer ? + mlx5_esw_bridge_ingress_flow_peer_create(vport_num, esw_owner_vhca_id, + addr, vlan, mlx5_fc_id(counter), + bridge) : + mlx5_esw_bridge_ingress_flow_create(vport_num, addr, vlan, + mlx5_fc_id(counter), bridge); + if (IS_ERR(handle)) { + err = PTR_ERR(handle); + esw_warn(esw->dev, "Failed to create ingress flow(vport=%u,err=%d,peer=%d)\n", + vport_num, err, peer); + goto err_ingress_flow_create; + } + entry->ingress_handle = handle; + + if (bridge->flags & MLX5_ESW_BRIDGE_VLAN_FILTERING_FLAG) { + handle = mlx5_esw_bridge_ingress_filter_flow_create(vport_num, addr, bridge); + if (IS_ERR(handle)) { + err = PTR_ERR(handle); + esw_warn(esw->dev, "Failed to create ingress filter(vport=%u,err=%d)\n", + vport_num, err); + goto err_ingress_filter_flow_create; + } + entry->filter_handle = handle; + } + + handle = mlx5_esw_bridge_egress_flow_create(vport_num, esw_owner_vhca_id, addr, vlan, + bridge); + if (IS_ERR(handle)) { + err = PTR_ERR(handle); + esw_warn(esw->dev, "Failed to create egress flow(vport=%u,err=%d)\n", + vport_num, err); + goto err_egress_flow_create; + } + entry->egress_handle = handle; + + err = rhashtable_insert_fast(&bridge->fdb_ht, &entry->ht_node, fdb_ht_params); + if (err) { + esw_warn(esw->dev, "Failed to insert FDB flow(vport=%u,err=%d)\n", vport_num, err); + goto err_ht_init; + } + + if (vlan) + list_add(&entry->vlan_list, &vlan->fdb_list); + else + INIT_LIST_HEAD(&entry->vlan_list); + list_add(&entry->list, &bridge->fdb_list); + + trace_mlx5_esw_bridge_fdb_entry_init(entry); + return entry; + +err_ht_init: + mlx5_del_flow_rules(entry->egress_handle); +err_egress_flow_create: + if (entry->filter_handle) + mlx5_del_flow_rules(entry->filter_handle); +err_ingress_filter_flow_create: + mlx5_del_flow_rules(entry->ingress_handle); +err_ingress_flow_create: + mlx5_fc_destroy(esw->dev, entry->ingress_counter); +err_ingress_fc_create: + kvfree(entry); + return ERR_PTR(err); +} + +int mlx5_esw_bridge_ageing_time_set(u16 vport_num, u16 esw_owner_vhca_id, unsigned long ageing_time, + struct mlx5_esw_bridge_offloads *br_offloads) +{ + struct mlx5_esw_bridge *bridge; + + bridge = mlx5_esw_bridge_from_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!bridge) + return -EINVAL; + + bridge->ageing_time = clock_t_to_jiffies(ageing_time); + return 0; +} + +int mlx5_esw_bridge_vlan_filtering_set(u16 vport_num, u16 esw_owner_vhca_id, bool enable, + struct mlx5_esw_bridge_offloads *br_offloads) +{ + struct mlx5_esw_bridge *bridge; + bool filtering; + + bridge = mlx5_esw_bridge_from_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!bridge) + return -EINVAL; + + filtering = bridge->flags & MLX5_ESW_BRIDGE_VLAN_FILTERING_FLAG; + if (filtering == enable) + return 0; + + mlx5_esw_bridge_fdb_flush(bridge); + mlx5_esw_bridge_mdb_flush(bridge); + if (enable) + bridge->flags |= MLX5_ESW_BRIDGE_VLAN_FILTERING_FLAG; + else + bridge->flags &= ~MLX5_ESW_BRIDGE_VLAN_FILTERING_FLAG; + + return 0; +} + +int mlx5_esw_bridge_vlan_proto_set(u16 vport_num, u16 esw_owner_vhca_id, u16 proto, + struct mlx5_esw_bridge_offloads *br_offloads) +{ + struct mlx5_esw_bridge *bridge; + + bridge = mlx5_esw_bridge_from_port_lookup(vport_num, esw_owner_vhca_id, + br_offloads); + if (!bridge) + return -EINVAL; + + if (bridge->vlan_proto == proto) + return 0; + if (proto != ETH_P_8021Q && proto != ETH_P_8021AD) { + esw_warn(br_offloads->esw->dev, "Can't set unsupported VLAN protocol %x", proto); + return -EOPNOTSUPP; + } + + mlx5_esw_bridge_fdb_flush(bridge); + mlx5_esw_bridge_mdb_flush(bridge); + bridge->vlan_proto = proto; + mlx5_esw_bridge_vlans_recreate(bridge); + + return 0; +} + +int mlx5_esw_bridge_mcast_set(u16 vport_num, u16 esw_owner_vhca_id, bool enable, + struct mlx5_esw_bridge_offloads *br_offloads) +{ + struct mlx5_eswitch *esw = br_offloads->esw; + struct mlx5_esw_bridge *bridge; + int err = 0; + bool mcast; + + if (!(MLX5_CAP_ESW_FLOWTABLE((esw)->dev, fdb_multi_path_any_table) || + MLX5_CAP_ESW_FLOWTABLE((esw)->dev, fdb_multi_path_any_table_limit_regc)) || + !MLX5_CAP_ESW_FLOWTABLE((esw)->dev, fdb_uplink_hairpin) || + !MLX5_CAP_ESW_FLOWTABLE_FDB((esw)->dev, ignore_flow_level)) + return -EOPNOTSUPP; + + bridge = mlx5_esw_bridge_from_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!bridge) + return -EINVAL; + + mcast = bridge->flags & MLX5_ESW_BRIDGE_MCAST_FLAG; + if (mcast == enable) + return 0; + + if (enable) + err = mlx5_esw_bridge_mcast_enable(bridge); + else + mlx5_esw_bridge_mcast_disable(bridge); + + return err; +} + +static int mlx5_esw_bridge_vport_init(u16 vport_num, u16 esw_owner_vhca_id, u16 flags, + struct mlx5_esw_bridge_offloads *br_offloads, + struct mlx5_esw_bridge *bridge) +{ + struct mlx5_eswitch *esw = br_offloads->esw; + struct mlx5_esw_bridge_port *port; + int err; + + port = kvzalloc(sizeof(*port), GFP_KERNEL); + if (!port) + return -ENOMEM; + + port->vport_num = vport_num; + port->esw_owner_vhca_id = esw_owner_vhca_id; + port->bridge = bridge; + port->flags |= flags; + xa_init(&port->vlans); + + err = mlx5_esw_bridge_port_mcast_init(port); + if (err) { + esw_warn(esw->dev, + "Failed to initialize port multicast (vport=%u,esw_owner_vhca_id=%u,err=%d)\n", + port->vport_num, port->esw_owner_vhca_id, err); + goto err_port_mcast; + } + + err = mlx5_esw_bridge_port_insert(port, br_offloads); + if (err) { + esw_warn(esw->dev, + "Failed to insert port metadata (vport=%u,esw_owner_vhca_id=%u,err=%d)\n", + port->vport_num, port->esw_owner_vhca_id, err); + goto err_port_insert; + } + trace_mlx5_esw_bridge_vport_init(port); + + return 0; + +err_port_insert: + mlx5_esw_bridge_port_mcast_cleanup(port); +err_port_mcast: + kvfree(port); + return err; +} + +static int mlx5_esw_bridge_vport_cleanup(struct mlx5_esw_bridge_offloads *br_offloads, + struct mlx5_esw_bridge_port *port) +{ + u16 vport_num = port->vport_num, esw_owner_vhca_id = port->esw_owner_vhca_id; + struct mlx5_esw_bridge *bridge = port->bridge; + struct mlx5_esw_bridge_fdb_entry *entry, *tmp; + + list_for_each_entry_safe(entry, tmp, &bridge->fdb_list, list) + if (entry->vport_num == vport_num && entry->esw_owner_vhca_id == esw_owner_vhca_id) + mlx5_esw_bridge_fdb_entry_cleanup(entry, bridge); + + trace_mlx5_esw_bridge_vport_cleanup(port); + mlx5_esw_bridge_port_vlans_flush(port, bridge); + mlx5_esw_bridge_port_mcast_cleanup(port); + mlx5_esw_bridge_port_erase(port, br_offloads); + kvfree(port); + mlx5_esw_bridge_put(br_offloads, bridge); + return 0; +} + +static int mlx5_esw_bridge_vport_link_with_flags(struct net_device *br_netdev, u16 vport_num, + u16 esw_owner_vhca_id, u16 flags, + struct mlx5_esw_bridge_offloads *br_offloads, + struct netlink_ext_ack *extack) +{ + struct mlx5_esw_bridge *bridge; + int err; + + bridge = mlx5_esw_bridge_lookup(br_netdev, br_offloads); + if (IS_ERR(bridge)) { + NL_SET_ERR_MSG_MOD(extack, "Error checking for existing bridge with same ifindex"); + return PTR_ERR(bridge); + } + + err = mlx5_esw_bridge_vport_init(vport_num, esw_owner_vhca_id, flags, br_offloads, bridge); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Error initializing port"); + goto err_vport; + } + return 0; + +err_vport: + mlx5_esw_bridge_put(br_offloads, bridge); + return err; +} + +int mlx5_esw_bridge_vport_link(struct net_device *br_netdev, u16 vport_num, u16 esw_owner_vhca_id, + struct mlx5_esw_bridge_offloads *br_offloads, + struct netlink_ext_ack *extack) +{ + return mlx5_esw_bridge_vport_link_with_flags(br_netdev, vport_num, esw_owner_vhca_id, 0, + br_offloads, extack); +} + +int mlx5_esw_bridge_vport_unlink(struct net_device *br_netdev, u16 vport_num, + u16 esw_owner_vhca_id, + struct mlx5_esw_bridge_offloads *br_offloads, + struct netlink_ext_ack *extack) +{ + struct mlx5_esw_bridge_port *port; + int err; + + port = mlx5_esw_bridge_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!port) { + NL_SET_ERR_MSG_MOD(extack, "Port is not attached to any bridge"); + return -EINVAL; + } + if (port->bridge->ifindex != br_netdev->ifindex) { + NL_SET_ERR_MSG_MOD(extack, "Port is attached to another bridge"); + return -EINVAL; + } + + err = mlx5_esw_bridge_vport_cleanup(br_offloads, port); + if (err) + NL_SET_ERR_MSG_MOD(extack, "Port cleanup failed"); + return err; +} + +int mlx5_esw_bridge_vport_peer_link(struct net_device *br_netdev, u16 vport_num, + u16 esw_owner_vhca_id, + struct mlx5_esw_bridge_offloads *br_offloads, + struct netlink_ext_ack *extack) +{ + if (!MLX5_CAP_ESW(br_offloads->esw->dev, merged_eswitch)) + return 0; + + return mlx5_esw_bridge_vport_link_with_flags(br_netdev, vport_num, esw_owner_vhca_id, + MLX5_ESW_BRIDGE_PORT_FLAG_PEER, + br_offloads, extack); +} + +int mlx5_esw_bridge_vport_peer_unlink(struct net_device *br_netdev, u16 vport_num, + u16 esw_owner_vhca_id, + struct mlx5_esw_bridge_offloads *br_offloads, + struct netlink_ext_ack *extack) +{ + return mlx5_esw_bridge_vport_unlink(br_netdev, vport_num, esw_owner_vhca_id, br_offloads, + extack); +} + +int mlx5_esw_bridge_port_vlan_add(u16 vport_num, u16 esw_owner_vhca_id, u16 vid, u16 flags, + struct mlx5_esw_bridge_offloads *br_offloads, + struct netlink_ext_ack *extack) +{ + struct mlx5_esw_bridge_port *port; + struct mlx5_esw_bridge_vlan *vlan; + + port = mlx5_esw_bridge_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!port) + return -EINVAL; + + vlan = mlx5_esw_bridge_vlan_lookup(vid, port); + if (vlan) { + if (vlan->flags == flags) + return 0; + mlx5_esw_bridge_vlan_cleanup(port, vlan, port->bridge); + } + + vlan = mlx5_esw_bridge_vlan_create(port->bridge->vlan_proto, vid, flags, port, + br_offloads->esw); + if (IS_ERR(vlan)) { + NL_SET_ERR_MSG_MOD(extack, "Failed to create VLAN entry"); + return PTR_ERR(vlan); + } + return 0; +} + +void mlx5_esw_bridge_port_vlan_del(u16 vport_num, u16 esw_owner_vhca_id, u16 vid, + struct mlx5_esw_bridge_offloads *br_offloads) +{ + struct mlx5_esw_bridge_port *port; + struct mlx5_esw_bridge_vlan *vlan; + + port = mlx5_esw_bridge_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!port) + return; + + vlan = mlx5_esw_bridge_vlan_lookup(vid, port); + if (!vlan) + return; + mlx5_esw_bridge_vlan_cleanup(port, vlan, port->bridge); +} + +void mlx5_esw_bridge_fdb_update_used(struct net_device *dev, u16 vport_num, u16 esw_owner_vhca_id, + struct mlx5_esw_bridge_offloads *br_offloads, + struct switchdev_notifier_fdb_info *fdb_info) +{ + struct mlx5_esw_bridge_fdb_entry *entry; + struct mlx5_esw_bridge *bridge; + + bridge = mlx5_esw_bridge_from_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!bridge) + return; + + entry = mlx5_esw_bridge_fdb_lookup(bridge, fdb_info->addr, fdb_info->vid); + if (!entry) { + esw_debug(br_offloads->esw->dev, + "FDB update entry with specified key not found (MAC=%pM,vid=%u,vport=%u)\n", + fdb_info->addr, fdb_info->vid, vport_num); + return; + } + + entry->lastuse = jiffies; +} + +void mlx5_esw_bridge_fdb_mark_deleted(struct net_device *dev, u16 vport_num, u16 esw_owner_vhca_id, + struct mlx5_esw_bridge_offloads *br_offloads, + struct switchdev_notifier_fdb_info *fdb_info) +{ + struct mlx5_esw_bridge_fdb_entry *entry; + struct mlx5_esw_bridge *bridge; + + bridge = mlx5_esw_bridge_from_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!bridge) + return; + + entry = mlx5_esw_bridge_fdb_lookup(bridge, fdb_info->addr, fdb_info->vid); + if (!entry) { + esw_debug(br_offloads->esw->dev, + "FDB mark deleted entry with specified key not found (MAC=%pM,vid=%u,vport=%u)\n", + fdb_info->addr, fdb_info->vid, vport_num); + return; + } + + entry->flags |= MLX5_ESW_BRIDGE_FLAG_DELETED; +} + +void mlx5_esw_bridge_fdb_create(struct net_device *dev, u16 vport_num, u16 esw_owner_vhca_id, + struct mlx5_esw_bridge_offloads *br_offloads, + struct switchdev_notifier_fdb_info *fdb_info) +{ + struct mlx5_esw_bridge_fdb_entry *entry; + struct mlx5_esw_bridge_port *port; + struct mlx5_esw_bridge *bridge; + + port = mlx5_esw_bridge_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!port) + return; + + bridge = port->bridge; + entry = mlx5_esw_bridge_fdb_entry_init(dev, vport_num, esw_owner_vhca_id, fdb_info->addr, + fdb_info->vid, fdb_info->added_by_user, + port->flags & MLX5_ESW_BRIDGE_PORT_FLAG_PEER, + br_offloads->esw, bridge); + if (IS_ERR(entry)) + return; + + if (entry->flags & MLX5_ESW_BRIDGE_FLAG_ADDED_BY_USER) + mlx5_esw_bridge_fdb_offload_notify(dev, entry->key.addr, entry->key.vid, + SWITCHDEV_FDB_OFFLOADED); + else if (!(entry->flags & MLX5_ESW_BRIDGE_FLAG_PEER)) + /* Take over dynamic entries to prevent kernel bridge from aging them out. */ + mlx5_esw_bridge_fdb_offload_notify(dev, entry->key.addr, entry->key.vid, + SWITCHDEV_FDB_ADD_TO_BRIDGE); +} + +void mlx5_esw_bridge_fdb_remove(struct net_device *dev, u16 vport_num, u16 esw_owner_vhca_id, + struct mlx5_esw_bridge_offloads *br_offloads, + struct switchdev_notifier_fdb_info *fdb_info) +{ + struct mlx5_eswitch *esw = br_offloads->esw; + struct mlx5_esw_bridge_fdb_entry *entry; + struct mlx5_esw_bridge *bridge; + + bridge = mlx5_esw_bridge_from_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!bridge) + return; + + entry = mlx5_esw_bridge_fdb_lookup(bridge, fdb_info->addr, fdb_info->vid); + if (!entry) { + esw_debug(esw->dev, + "FDB remove entry with specified key not found (MAC=%pM,vid=%u,vport=%u)\n", + fdb_info->addr, fdb_info->vid, vport_num); + return; + } + + mlx5_esw_bridge_fdb_entry_notify_and_cleanup(entry, bridge); +} + +void mlx5_esw_bridge_update(struct mlx5_esw_bridge_offloads *br_offloads) +{ + struct mlx5_esw_bridge_fdb_entry *entry, *tmp; + struct mlx5_esw_bridge *bridge; + + list_for_each_entry(bridge, &br_offloads->bridges, list) { + list_for_each_entry_safe(entry, tmp, &bridge->fdb_list, list) { + unsigned long lastuse = + (unsigned long)mlx5_fc_query_lastuse(entry->ingress_counter); + + if (entry->flags & (MLX5_ESW_BRIDGE_FLAG_ADDED_BY_USER | + MLX5_ESW_BRIDGE_FLAG_DELETED)) + continue; + + if (time_after(lastuse, entry->lastuse)) + mlx5_esw_bridge_fdb_entry_refresh(entry); + else if (!(entry->flags & MLX5_ESW_BRIDGE_FLAG_PEER) && + time_is_before_jiffies(entry->lastuse + bridge->ageing_time)) + mlx5_esw_bridge_fdb_entry_notify_and_cleanup(entry, bridge); + } + } +} + +int mlx5_esw_bridge_port_mdb_add(struct net_device *dev, u16 vport_num, u16 esw_owner_vhca_id, + const unsigned char *addr, u16 vid, + struct mlx5_esw_bridge_offloads *br_offloads, + struct netlink_ext_ack *extack) +{ + struct mlx5_esw_bridge_vlan *vlan; + struct mlx5_esw_bridge_port *port; + struct mlx5_esw_bridge *bridge; + int err; + + port = mlx5_esw_bridge_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!port) { + esw_warn(br_offloads->esw->dev, + "Failed to lookup bridge port to add MDB (MAC=%pM,vport=%u)\n", + addr, vport_num); + NL_SET_ERR_MSG_FMT_MOD(extack, + "Failed to lookup bridge port to add MDB (MAC=%pM,vport=%u)\n", + addr, vport_num); + return -EINVAL; + } + + bridge = port->bridge; + if (bridge->flags & MLX5_ESW_BRIDGE_VLAN_FILTERING_FLAG && vid) { + vlan = mlx5_esw_bridge_vlan_lookup(vid, port); + if (!vlan) { + esw_warn(br_offloads->esw->dev, + "Failed to lookup bridge port vlan metadata to create MDB (MAC=%pM,vid=%u,vport=%u)\n", + addr, vid, vport_num); + NL_SET_ERR_MSG_FMT_MOD(extack, + "Failed to lookup bridge port vlan metadata to create MDB (MAC=%pM,vid=%u,vport=%u)\n", + addr, vid, vport_num); + return -EINVAL; + } + } + + err = mlx5_esw_bridge_port_mdb_attach(dev, port, addr, vid); + if (err) { + NL_SET_ERR_MSG_FMT_MOD(extack, "Failed to add MDB (MAC=%pM,vid=%u,vport=%u)\n", + addr, vid, vport_num); + return err; + } + + return 0; +} + +void mlx5_esw_bridge_port_mdb_del(struct net_device *dev, u16 vport_num, u16 esw_owner_vhca_id, + const unsigned char *addr, u16 vid, + struct mlx5_esw_bridge_offloads *br_offloads) +{ + struct mlx5_esw_bridge_port *port; + + port = mlx5_esw_bridge_port_lookup(vport_num, esw_owner_vhca_id, br_offloads); + if (!port) + return; + + mlx5_esw_bridge_port_mdb_detach(dev, port, addr, vid); +} + +static void mlx5_esw_bridge_flush(struct mlx5_esw_bridge_offloads *br_offloads) +{ + struct mlx5_esw_bridge_port *port; + unsigned long i; + + xa_for_each(&br_offloads->ports, i, port) + mlx5_esw_bridge_vport_cleanup(br_offloads, port); + + WARN_ONCE(!list_empty(&br_offloads->bridges), + "Cleaning up bridge offloads while still having bridges attached\n"); +} + +struct mlx5_esw_bridge_offloads *mlx5_esw_bridge_init(struct mlx5_eswitch *esw) +{ + struct mlx5_esw_bridge_offloads *br_offloads; + + ASSERT_RTNL(); + + br_offloads = kvzalloc(sizeof(*br_offloads), GFP_KERNEL); + if (!br_offloads) + return ERR_PTR(-ENOMEM); + + INIT_LIST_HEAD(&br_offloads->bridges); + xa_init(&br_offloads->ports); + br_offloads->esw = esw; + esw->br_offloads = br_offloads; + mlx5_esw_bridge_debugfs_offloads_init(br_offloads); + + return br_offloads; +} + +void mlx5_esw_bridge_cleanup(struct mlx5_eswitch *esw) +{ + struct mlx5_esw_bridge_offloads *br_offloads = esw->br_offloads; + + ASSERT_RTNL(); + + if (!br_offloads) + return; + + mlx5_esw_bridge_flush(br_offloads); + WARN_ON(!xa_empty(&br_offloads->ports)); + mlx5_esw_bridge_debugfs_offloads_cleanup(br_offloads); + + esw->br_offloads = NULL; + kvfree(br_offloads); +} |