| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Vlad Buslov | 2911 | 15.25% | 12 | 4.72% |
| Roi Dayan | 2499 | 13.09% | 19 | 7.48% |
| Or Gerlitz | 2376 | 12.45% | 28 | 11.02% |
| Mark Bloch | 2067 | 10.83% | 26 | 10.24% |
| Parav Pandit | 1962 | 10.28% | 30 | 11.81% |
| Paul Blakey | 1307 | 6.85% | 12 | 4.72% |
| Jianbo Liu | 1187 | 6.22% | 10 | 3.94% |
| Bodong Wang | 1061 | 5.56% | 23 | 9.06% |
| Ariel Levkovich | 948 | 4.97% | 7 | 2.76% |
| Chris Mi | 703 | 3.68% | 14 | 5.51% |
| Vu Pham | 537 | 2.81% | 10 | 3.94% |
| Maor Gottlieb | 272 | 1.43% | 4 | 1.57% |
| Maor Dickman | 187 | 0.98% | 6 | 2.36% |
| Eli Britstein | 180 | 0.94% | 10 | 3.94% |
| Hadar Hen Zion | 151 | 0.79% | 5 | 1.97% |
| David S. Miller | 107 | 0.56% | 1 | 0.39% |
| Eli Cohen | 100 | 0.52% | 6 | 2.36% |
| Oz Shlomo | 74 | 0.39% | 1 | 0.39% |
| Moshe Shemesh | 68 | 0.36% | 2 | 0.79% |
| sunils | 57 | 0.30% | 1 | 0.39% |
| Sunil Rani | 49 | 0.26% | 1 | 0.39% |
| Leon Romanovsky | 48 | 0.25% | 3 | 1.18% |
| Erez Shitrit | 37 | 0.19% | 1 | 0.39% |
| Aya Levin | 35 | 0.18% | 1 | 0.39% |
| Dima Chumak | 28 | 0.15% | 1 | 0.39% |
| Michael Guralnik | 25 | 0.13% | 1 | 0.39% |
| Dmytro Linkin | 24 | 0.13% | 1 | 0.39% |
| Saeed Mahameed | 21 | 0.11% | 1 | 0.39% |
| Hamdan Igbaria | 10 | 0.05% | 1 | 0.39% |
| Raed Salem | 9 | 0.05% | 1 | 0.39% |
| Rabie Loulou | 8 | 0.04% | 2 | 0.79% |
| Dan Carpenter | 7 | 0.04% | 1 | 0.39% |
| Shahar Klein | 6 | 0.03% | 1 | 0.39% |
| Jiapeng Chong | 6 | 0.03% | 1 | 0.39% |
| Huy Nguyen | 4 | 0.02% | 2 | 0.79% |
| Gustavo A. R. Silva | 4 | 0.02% | 2 | 0.79% |
| Gavi Teitz | 4 | 0.02% | 1 | 0.39% |
| Colin Ian King | 2 | 0.01% | 1 | 0.39% |
| Rongwei Liu | 1 | 0.01% | 1 | 0.39% |
| Zheng Yongjun | 1 | 0.01% | 1 | 0.39% |
| Christophe Jaillet | 1 | 0.01% | 1 | 0.39% |
| Yevgeny Kliteynik | 1 | 0.01% | 1 | 0.39% |
| Total | 19085 | 254 |
/* * Copyright (c) 2016, Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include <linux/etherdevice.h> #include <linux/idr.h> #include <linux/mlx5/driver.h> #include <linux/mlx5/mlx5_ifc.h> #include <linux/mlx5/vport.h> #include <linux/mlx5/fs.h> #include "mlx5_core.h" #include "eswitch.h" #include "esw/indir_table.h" #include "esw/acl/ofld.h" #include "rdma.h" #include "en.h" #include "fs_core.h" #include "lib/devcom.h" #include "lib/eq.h" #include "lib/fs_chains.h" #include "en_tc.h" #include "en/mapping.h" #include "devlink.h" #include "lag/lag.h" #define mlx5_esw_for_each_rep(esw, i, rep) \ xa_for_each(&((esw)->offloads.vport_reps), i, rep) #define mlx5_esw_for_each_sf_rep(esw, i, rep) \ xa_for_each_marked(&((esw)->offloads.vport_reps), i, rep, MLX5_ESW_VPT_SF) #define mlx5_esw_for_each_vf_rep(esw, index, rep) \ mlx5_esw_for_each_entry_marked(&((esw)->offloads.vport_reps), index, \ rep, (esw)->esw_funcs.num_vfs, MLX5_ESW_VPT_VF) /* There are two match-all miss flows, one for unicast dst mac and * one for multicast. */ #define MLX5_ESW_MISS_FLOWS (2) #define UPLINK_REP_INDEX 0 #define MLX5_ESW_VPORT_TBL_SIZE 128 #define MLX5_ESW_VPORT_TBL_NUM_GROUPS 4 #define MLX5_ESW_FT_OFFLOADS_DROP_RULE (1) static const struct esw_vport_tbl_namespace mlx5_esw_vport_tbl_mirror_ns = { .max_fte = MLX5_ESW_VPORT_TBL_SIZE, .max_num_groups = MLX5_ESW_VPORT_TBL_NUM_GROUPS, .flags = 0, }; static struct mlx5_eswitch_rep *mlx5_eswitch_get_rep(struct mlx5_eswitch *esw, u16 vport_num) { return xa_load(&esw->offloads.vport_reps, vport_num); } static void mlx5_eswitch_set_rule_flow_source(struct mlx5_eswitch *esw, struct mlx5_flow_spec *spec, struct mlx5_esw_flow_attr *attr) { if (!MLX5_CAP_ESW_FLOWTABLE(esw->dev, flow_source) || !attr || !attr->in_rep) return; if (attr->int_port) { spec->flow_context.flow_source = mlx5e_tc_int_port_get_flow_source(attr->int_port); return; } spec->flow_context.flow_source = (attr->in_rep->vport == MLX5_VPORT_UPLINK) ? MLX5_FLOW_CONTEXT_FLOW_SOURCE_UPLINK : MLX5_FLOW_CONTEXT_FLOW_SOURCE_LOCAL_VPORT; } /* Actually only the upper 16 bits of reg c0 need to be cleared, but the lower 16 bits * are not needed as well in the following process. So clear them all for simplicity. */ void mlx5_eswitch_clear_rule_source_port(struct mlx5_eswitch *esw, struct mlx5_flow_spec *spec) { if (mlx5_eswitch_vport_match_metadata_enabled(esw)) { void *misc2; misc2 = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters_2); MLX5_SET(fte_match_set_misc2, misc2, metadata_reg_c_0, 0); misc2 = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters_2); MLX5_SET(fte_match_set_misc2, misc2, metadata_reg_c_0, 0); if (!memchr_inv(misc2, 0, MLX5_ST_SZ_BYTES(fte_match_set_misc2))) spec->match_criteria_enable &= ~MLX5_MATCH_MISC_PARAMETERS_2; } } static void mlx5_eswitch_set_rule_source_port(struct mlx5_eswitch *esw, struct mlx5_flow_spec *spec, struct mlx5_flow_attr *attr, struct mlx5_eswitch *src_esw, u16 vport) { struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; u32 metadata; void *misc2; void *misc; /* Use metadata matching because vport is not represented by single * VHCA in dual-port RoCE mode, and matching on source vport may fail. */ if (mlx5_eswitch_vport_match_metadata_enabled(esw)) { if (mlx5_esw_indir_table_decap_vport(attr)) vport = mlx5_esw_indir_table_decap_vport(attr); if (attr && !attr->chain && esw_attr->int_port) metadata = mlx5e_tc_int_port_get_metadata_for_match(esw_attr->int_port); else metadata = mlx5_eswitch_get_vport_metadata_for_match(src_esw, vport); misc2 = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters_2); MLX5_SET(fte_match_set_misc2, misc2, metadata_reg_c_0, metadata); misc2 = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters_2); MLX5_SET(fte_match_set_misc2, misc2, metadata_reg_c_0, mlx5_eswitch_get_vport_metadata_mask()); spec->match_criteria_enable |= MLX5_MATCH_MISC_PARAMETERS_2; } else { misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters); MLX5_SET(fte_match_set_misc, misc, source_port, vport); if (MLX5_CAP_ESW(esw->dev, merged_eswitch)) MLX5_SET(fte_match_set_misc, misc, source_eswitch_owner_vhca_id, MLX5_CAP_GEN(src_esw->dev, vhca_id)); misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters); MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port); if (MLX5_CAP_ESW(esw->dev, merged_eswitch)) MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_eswitch_owner_vhca_id); spec->match_criteria_enable |= MLX5_MATCH_MISC_PARAMETERS; } } static int esw_setup_decap_indir(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr, struct mlx5_flow_spec *spec) { struct mlx5_flow_table *ft; if (!(attr->flags & MLX5_ATTR_FLAG_SRC_REWRITE)) return -EOPNOTSUPP; ft = mlx5_esw_indir_table_get(esw, attr, spec, mlx5_esw_indir_table_decap_vport(attr), true); return PTR_ERR_OR_ZERO(ft); } static void esw_cleanup_decap_indir(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr) { if (mlx5_esw_indir_table_decap_vport(attr)) mlx5_esw_indir_table_put(esw, attr, mlx5_esw_indir_table_decap_vport(attr), true); } static int esw_setup_sampler_dest(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act, u32 sampler_id, int i) { flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL; dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER; dest[i].sampler_id = sampler_id; return 0; } static int esw_setup_ft_dest(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act, struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr, struct mlx5_flow_spec *spec, int i) { flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL; dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; dest[i].ft = attr->dest_ft; if (mlx5_esw_indir_table_decap_vport(attr)) return esw_setup_decap_indir(esw, attr, spec); return 0; } static void esw_setup_accept_dest(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act, struct mlx5_fs_chains *chains, int i) { if (mlx5_chains_ignore_flow_level_supported(chains)) flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL; dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; dest[i].ft = mlx5_chains_get_tc_end_ft(chains); } static void esw_setup_slow_path_dest(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act, struct mlx5_eswitch *esw, int i) { if (MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, ignore_flow_level)) flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL; dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; dest[i].ft = esw->fdb_table.offloads.slow_fdb; } static int esw_setup_chain_dest(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act, struct mlx5_fs_chains *chains, u32 chain, u32 prio, u32 level, int i) { struct mlx5_flow_table *ft; flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL; ft = mlx5_chains_get_table(chains, chain, prio, level); if (IS_ERR(ft)) return PTR_ERR(ft); dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; dest[i].ft = ft; return 0; } static void esw_put_dest_tables_loop(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr, int from, int to) { struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; struct mlx5_fs_chains *chains = esw_chains(esw); int i; for (i = from; i < to; i++) if (esw_attr->dests[i].flags & MLX5_ESW_DEST_CHAIN_WITH_SRC_PORT_CHANGE) mlx5_chains_put_table(chains, 0, 1, 0); else if (mlx5_esw_indir_table_needed(esw, attr, esw_attr->dests[i].rep->vport, esw_attr->dests[i].mdev)) mlx5_esw_indir_table_put(esw, attr, esw_attr->dests[i].rep->vport, false); } static bool esw_is_chain_src_port_rewrite(struct mlx5_eswitch *esw, struct mlx5_esw_flow_attr *esw_attr) { int i; for (i = esw_attr->split_count; i < esw_attr->out_count; i++) if (esw_attr->dests[i].flags & MLX5_ESW_DEST_CHAIN_WITH_SRC_PORT_CHANGE) return true; return false; } static int esw_setup_chain_src_port_rewrite(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act, struct mlx5_eswitch *esw, struct mlx5_fs_chains *chains, struct mlx5_flow_attr *attr, int *i) { struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; int err; if (!(attr->flags & MLX5_ATTR_FLAG_SRC_REWRITE)) return -EOPNOTSUPP; /* flow steering cannot handle more than one dest with the same ft * in a single flow */ if (esw_attr->out_count - esw_attr->split_count > 1) return -EOPNOTSUPP; err = esw_setup_chain_dest(dest, flow_act, chains, attr->dest_chain, 1, 0, *i); if (err) return err; if (esw_attr->dests[esw_attr->split_count].pkt_reformat) { flow_act->action |= MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT; flow_act->pkt_reformat = esw_attr->dests[esw_attr->split_count].pkt_reformat; } (*i)++; return 0; } static void esw_cleanup_chain_src_port_rewrite(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr) { struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; esw_put_dest_tables_loop(esw, attr, esw_attr->split_count, esw_attr->out_count); } static bool esw_is_indir_table(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr) { struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; bool result = false; int i; /* Indirect table is supported only for flows with in_port uplink * and the destination is vport on the same eswitch as the uplink, * return false in case at least one of destinations doesn't meet * this criteria. */ for (i = esw_attr->split_count; i < esw_attr->out_count; i++) { if (esw_attr->dests[i].rep && mlx5_esw_indir_table_needed(esw, attr, esw_attr->dests[i].rep->vport, esw_attr->dests[i].mdev)) { result = true; } else { result = false; break; } } return result; } static int esw_setup_indir_table(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act, struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr, struct mlx5_flow_spec *spec, bool ignore_flow_lvl, int *i) { struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; int j, err; if (!(attr->flags & MLX5_ATTR_FLAG_SRC_REWRITE)) return -EOPNOTSUPP; for (j = esw_attr->split_count; j < esw_attr->out_count; j++, (*i)++) { if (ignore_flow_lvl) flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL; dest[*i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; dest[*i].ft = mlx5_esw_indir_table_get(esw, attr, spec, esw_attr->dests[j].rep->vport, false); if (IS_ERR(dest[*i].ft)) { err = PTR_ERR(dest[*i].ft); goto err_indir_tbl_get; } } if (mlx5_esw_indir_table_decap_vport(attr)) { err = esw_setup_decap_indir(esw, attr, spec); if (err) goto err_indir_tbl_get; } return 0; err_indir_tbl_get: esw_put_dest_tables_loop(esw, attr, esw_attr->split_count, j); return err; } static void esw_cleanup_indir_table(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr) { struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; esw_put_dest_tables_loop(esw, attr, esw_attr->split_count, esw_attr->out_count); esw_cleanup_decap_indir(esw, attr); } static void esw_cleanup_chain_dest(struct mlx5_fs_chains *chains, u32 chain, u32 prio, u32 level) { mlx5_chains_put_table(chains, chain, prio, level); } static void esw_setup_vport_dest(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act, struct mlx5_eswitch *esw, struct mlx5_esw_flow_attr *esw_attr, int attr_idx, int dest_idx, bool pkt_reformat) { dest[dest_idx].type = MLX5_FLOW_DESTINATION_TYPE_VPORT; dest[dest_idx].vport.num = esw_attr->dests[attr_idx].rep->vport; if (MLX5_CAP_ESW(esw->dev, merged_eswitch)) { dest[dest_idx].vport.vhca_id = MLX5_CAP_GEN(esw_attr->dests[attr_idx].mdev, vhca_id); dest[dest_idx].vport.flags |= MLX5_FLOW_DEST_VPORT_VHCA_ID; if (dest[dest_idx].vport.num == MLX5_VPORT_UPLINK && mlx5_lag_mpesw_is_activated(esw->dev)) dest[dest_idx].type = MLX5_FLOW_DESTINATION_TYPE_UPLINK; } if (esw_attr->dests[attr_idx].flags & MLX5_ESW_DEST_ENCAP_VALID) { if (pkt_reformat) { flow_act->action |= MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT; flow_act->pkt_reformat = esw_attr->dests[attr_idx].pkt_reformat; } dest[dest_idx].vport.flags |= MLX5_FLOW_DEST_VPORT_REFORMAT_ID; dest[dest_idx].vport.pkt_reformat = esw_attr->dests[attr_idx].pkt_reformat; } } static int esw_setup_vport_dests(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act, struct mlx5_eswitch *esw, struct mlx5_esw_flow_attr *esw_attr, int i) { int j; for (j = esw_attr->split_count; j < esw_attr->out_count; j++, i++) esw_setup_vport_dest(dest, flow_act, esw, esw_attr, j, i, true); return i; } static bool esw_src_port_rewrite_supported(struct mlx5_eswitch *esw) { return MLX5_CAP_GEN(esw->dev, reg_c_preserve) && mlx5_eswitch_vport_match_metadata_enabled(esw) && MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, ignore_flow_level); } static int esw_setup_dests(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act, struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr, struct mlx5_flow_spec *spec, int *i) { struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; struct mlx5_fs_chains *chains = esw_chains(esw); int err = 0; if (!mlx5_eswitch_termtbl_required(esw, attr, flow_act, spec) && esw_src_port_rewrite_supported(esw)) attr->flags |= MLX5_ATTR_FLAG_SRC_REWRITE; if (attr->flags & MLX5_ATTR_FLAG_SAMPLE && !(attr->flags & MLX5_ATTR_FLAG_SLOW_PATH)) { esw_setup_sampler_dest(dest, flow_act, attr->sample_attr.sampler_id, *i); (*i)++; } else if (attr->flags & MLX5_ATTR_FLAG_SLOW_PATH) { esw_setup_slow_path_dest(dest, flow_act, esw, *i); (*i)++; } else if (attr->flags & MLX5_ATTR_FLAG_ACCEPT) { esw_setup_accept_dest(dest, flow_act, chains, *i); (*i)++; } else if (esw_is_indir_table(esw, attr)) { err = esw_setup_indir_table(dest, flow_act, esw, attr, spec, true, i); } else if (esw_is_chain_src_port_rewrite(esw, esw_attr)) { err = esw_setup_chain_src_port_rewrite(dest, flow_act, esw, chains, attr, i); } else { *i = esw_setup_vport_dests(dest, flow_act, esw, esw_attr, *i); if (attr->dest_ft) { err = esw_setup_ft_dest(dest, flow_act, esw, attr, spec, *i); (*i)++; } else if (attr->dest_chain) { err = esw_setup_chain_dest(dest, flow_act, chains, attr->dest_chain, 1, 0, *i); (*i)++; } } return err; } static void esw_cleanup_dests(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr) { struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; struct mlx5_fs_chains *chains = esw_chains(esw); if (attr->dest_ft) { esw_cleanup_decap_indir(esw, attr); } else if (!mlx5e_tc_attr_flags_skip(attr->flags)) { if (attr->dest_chain) esw_cleanup_chain_dest(chains, attr->dest_chain, 1, 0); else if (esw_is_indir_table(esw, attr)) esw_cleanup_indir_table(esw, attr); else if (esw_is_chain_src_port_rewrite(esw, esw_attr)) esw_cleanup_chain_src_port_rewrite(esw, attr); } } static void esw_setup_meter(struct mlx5_flow_attr *attr, struct mlx5_flow_act *flow_act) { struct mlx5e_flow_meter_handle *meter; meter = attr->meter_attr.meter; flow_act->exe_aso.type = attr->exe_aso_type; flow_act->exe_aso.object_id = meter->obj_id; flow_act->exe_aso.flow_meter.meter_idx = meter->idx; flow_act->exe_aso.flow_meter.init_color = MLX5_FLOW_METER_COLOR_GREEN; /* use metadata reg 5 for packet color */ flow_act->exe_aso.return_reg_id = 5; } struct mlx5_flow_handle * mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw, struct mlx5_flow_spec *spec, struct mlx5_flow_attr *attr) { struct mlx5_flow_act flow_act = { .flags = FLOW_ACT_NO_APPEND, }; struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; struct mlx5_fs_chains *chains = esw_chains(esw); bool split = !!(esw_attr->split_count); struct mlx5_vport_tbl_attr fwd_attr; struct mlx5_flow_destination *dest; struct mlx5_flow_handle *rule; struct mlx5_flow_table *fdb; int i = 0; if (esw->mode != MLX5_ESWITCH_OFFLOADS) return ERR_PTR(-EOPNOTSUPP); dest = kcalloc(MLX5_MAX_FLOW_FWD_VPORTS + 1, sizeof(*dest), GFP_KERNEL); if (!dest) return ERR_PTR(-ENOMEM); flow_act.action = attr->action; /* if per flow vlan pop/push is emulated, don't set that into the firmware */ if (!mlx5_eswitch_vlan_actions_supported(esw->dev, 1)) flow_act.action &= ~(MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH | MLX5_FLOW_CONTEXT_ACTION_VLAN_POP); else if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH) { flow_act.vlan[0].ethtype = ntohs(esw_attr->vlan_proto[0]); flow_act.vlan[0].vid = esw_attr->vlan_vid[0]; flow_act.vlan[0].prio = esw_attr->vlan_prio[0]; if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH_2) { flow_act.vlan[1].ethtype = ntohs(esw_attr->vlan_proto[1]); flow_act.vlan[1].vid = esw_attr->vlan_vid[1]; flow_act.vlan[1].prio = esw_attr->vlan_prio[1]; } } mlx5_eswitch_set_rule_flow_source(esw, spec, esw_attr); if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { int err; err = esw_setup_dests(dest, &flow_act, esw, attr, spec, &i); if (err) { rule = ERR_PTR(err); goto err_create_goto_table; } } if (esw_attr->decap_pkt_reformat) flow_act.pkt_reformat = esw_attr->decap_pkt_reformat; if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_COUNT) { dest[i].type = MLX5_FLOW_DESTINATION_TYPE_COUNTER; dest[i].counter_id = mlx5_fc_id(attr->counter); i++; } if (attr->outer_match_level != MLX5_MATCH_NONE) spec->match_criteria_enable |= MLX5_MATCH_OUTER_HEADERS; if (attr->inner_match_level != MLX5_MATCH_NONE) spec->match_criteria_enable |= MLX5_MATCH_INNER_HEADERS; if (flow_act.action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR) flow_act.modify_hdr = attr->modify_hdr; if ((flow_act.action & MLX5_FLOW_CONTEXT_ACTION_EXECUTE_ASO) && attr->exe_aso_type == MLX5_EXE_ASO_FLOW_METER) esw_setup_meter(attr, &flow_act); if (split) { fwd_attr.chain = attr->chain; fwd_attr.prio = attr->prio; fwd_attr.vport = esw_attr->in_rep->vport; fwd_attr.vport_ns = &mlx5_esw_vport_tbl_mirror_ns; fdb = mlx5_esw_vporttbl_get(esw, &fwd_attr); } else { if (attr->chain || attr->prio) fdb = mlx5_chains_get_table(chains, attr->chain, attr->prio, 0); else fdb = attr->ft; if (!(attr->flags & MLX5_ATTR_FLAG_NO_IN_PORT)) mlx5_eswitch_set_rule_source_port(esw, spec, attr, esw_attr->in_mdev->priv.eswitch, esw_attr->in_rep->vport); } if (IS_ERR(fdb)) { rule = ERR_CAST(fdb); goto err_esw_get; } if (mlx5_eswitch_termtbl_required(esw, attr, &flow_act, spec)) rule = mlx5_eswitch_add_termtbl_rule(esw, fdb, spec, esw_attr, &flow_act, dest, i); else rule = mlx5_add_flow_rules(fdb, spec, &flow_act, dest, i); if (IS_ERR(rule)) goto err_add_rule; else atomic64_inc(&esw->offloads.num_flows); kfree(dest); return rule; err_add_rule: if (split) mlx5_esw_vporttbl_put(esw, &fwd_attr); else if (attr->chain || attr->prio) mlx5_chains_put_table(chains, attr->chain, attr->prio, 0); err_esw_get: esw_cleanup_dests(esw, attr); err_create_goto_table: kfree(dest); return rule; } struct mlx5_flow_handle * mlx5_eswitch_add_fwd_rule(struct mlx5_eswitch *esw, struct mlx5_flow_spec *spec, struct mlx5_flow_attr *attr) { struct mlx5_flow_act flow_act = { .flags = FLOW_ACT_NO_APPEND, }; struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; struct mlx5_fs_chains *chains = esw_chains(esw); struct mlx5_vport_tbl_attr fwd_attr; struct mlx5_flow_destination *dest; struct mlx5_flow_table *fast_fdb; struct mlx5_flow_table *fwd_fdb; struct mlx5_flow_handle *rule; int i, err = 0; dest = kcalloc(MLX5_MAX_FLOW_FWD_VPORTS + 1, sizeof(*dest), GFP_KERNEL); if (!dest) return ERR_PTR(-ENOMEM); fast_fdb = mlx5_chains_get_table(chains, attr->chain, attr->prio, 0); if (IS_ERR(fast_fdb)) { rule = ERR_CAST(fast_fdb); goto err_get_fast; } fwd_attr.chain = attr->chain; fwd_attr.prio = attr->prio; fwd_attr.vport = esw_attr->in_rep->vport; fwd_attr.vport_ns = &mlx5_esw_vport_tbl_mirror_ns; fwd_fdb = mlx5_esw_vporttbl_get(esw, &fwd_attr); if (IS_ERR(fwd_fdb)) { rule = ERR_CAST(fwd_fdb); goto err_get_fwd; } flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; for (i = 0; i < esw_attr->split_count; i++) { if (esw_is_indir_table(esw, attr)) err = esw_setup_indir_table(dest, &flow_act, esw, attr, spec, false, &i); else if (esw_is_chain_src_port_rewrite(esw, esw_attr)) err = esw_setup_chain_src_port_rewrite(dest, &flow_act, esw, chains, attr, &i); else esw_setup_vport_dest(dest, &flow_act, esw, esw_attr, i, i, false); if (err) { rule = ERR_PTR(err); goto err_chain_src_rewrite; } } dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; dest[i].ft = fwd_fdb; i++; mlx5_eswitch_set_rule_source_port(esw, spec, attr, esw_attr->in_mdev->priv.eswitch, esw_attr->in_rep->vport); if (attr->outer_match_level != MLX5_MATCH_NONE) spec->match_criteria_enable |= MLX5_MATCH_OUTER_HEADERS; flow_act.flags |= FLOW_ACT_IGNORE_FLOW_LEVEL; rule = mlx5_add_flow_rules(fast_fdb, spec, &flow_act, dest, i); if (IS_ERR(rule)) { i = esw_attr->split_count; goto err_chain_src_rewrite; } atomic64_inc(&esw->offloads.num_flows); kfree(dest); return rule; err_chain_src_rewrite: esw_put_dest_tables_loop(esw, attr, 0, i); mlx5_esw_vporttbl_put(esw, &fwd_attr); err_get_fwd: mlx5_chains_put_table(chains, attr->chain, attr->prio, 0); err_get_fast: kfree(dest); return rule; } static void __mlx5_eswitch_del_rule(struct mlx5_eswitch *esw, struct mlx5_flow_handle *rule, struct mlx5_flow_attr *attr, bool fwd_rule) { struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; struct mlx5_fs_chains *chains = esw_chains(esw); bool split = (esw_attr->split_count > 0); struct mlx5_vport_tbl_attr fwd_attr; int i; mlx5_del_flow_rules(rule); if (!mlx5e_tc_attr_flags_skip(attr->flags)) { /* unref the term table */ for (i = 0; i < MLX5_MAX_FLOW_FWD_VPORTS; i++) { if (esw_attr->dests[i].termtbl) mlx5_eswitch_termtbl_put(esw, esw_attr->dests[i].termtbl); } } atomic64_dec(&esw->offloads.num_flows); if (fwd_rule || split) { fwd_attr.chain = attr->chain; fwd_attr.prio = attr->prio; fwd_attr.vport = esw_attr->in_rep->vport; fwd_attr.vport_ns = &mlx5_esw_vport_tbl_mirror_ns; } if (fwd_rule) { mlx5_esw_vporttbl_put(esw, &fwd_attr); mlx5_chains_put_table(chains, attr->chain, attr->prio, 0); esw_put_dest_tables_loop(esw, attr, 0, esw_attr->split_count); } else { if (split) mlx5_esw_vporttbl_put(esw, &fwd_attr); else if (attr->chain || attr->prio) mlx5_chains_put_table(chains, attr->chain, attr->prio, 0); esw_cleanup_dests(esw, attr); } } void mlx5_eswitch_del_offloaded_rule(struct mlx5_eswitch *esw, struct mlx5_flow_handle *rule, struct mlx5_flow_attr *attr) { __mlx5_eswitch_del_rule(esw, rule, attr, false); } void mlx5_eswitch_del_fwd_rule(struct mlx5_eswitch *esw, struct mlx5_flow_handle *rule, struct mlx5_flow_attr *attr) { __mlx5_eswitch_del_rule(esw, rule, attr, true); } static int esw_set_global_vlan_pop(struct mlx5_eswitch *esw, u8 val) { struct mlx5_eswitch_rep *rep; unsigned long i; int err = 0; esw_debug(esw->dev, "%s applying global %s policy\n", __func__, val ? "pop" : "none"); mlx5_esw_for_each_host_func_vport(esw, i, rep, esw->esw_funcs.num_vfs) { if (atomic_read(&rep->rep_data[REP_ETH].state) != REP_LOADED) continue; err = __mlx5_eswitch_set_vport_vlan(esw, rep->vport, 0, 0, val); if (err) goto out; } out: return err; } static struct mlx5_eswitch_rep * esw_vlan_action_get_vport(struct mlx5_esw_flow_attr *attr, bool push, bool pop) { struct mlx5_eswitch_rep *in_rep, *out_rep, *vport = NULL; in_rep = attr->in_rep; out_rep = attr->dests[0].rep; if (push) vport = in_rep; else if (pop) vport = out_rep; else vport = in_rep; return vport; } static int esw_add_vlan_action_check(struct mlx5_esw_flow_attr *attr, bool push, bool pop, bool fwd) { struct mlx5_eswitch_rep *in_rep, *out_rep; if ((push || pop) && !fwd) goto out_notsupp; in_rep = attr->in_rep; out_rep = attr->dests[0].rep; if (push && in_rep->vport == MLX5_VPORT_UPLINK) goto out_notsupp; if (pop && out_rep->vport == MLX5_VPORT_UPLINK) goto out_notsupp; /* vport has vlan push configured, can't offload VF --> wire rules w.o it */ if (!push && !pop && fwd) if (in_rep->vlan && out_rep->vport == MLX5_VPORT_UPLINK) goto out_notsupp; /* protects against (1) setting rules with different vlans to push and * (2) setting rules w.o vlans (attr->vlan = 0) && w. vlans to push (!= 0) */ if (push && in_rep->vlan_refcount && (in_rep->vlan != attr->vlan_vid[0])) goto out_notsupp; return 0; out_notsupp: return -EOPNOTSUPP; } int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr) { struct offloads_fdb *offloads = &esw->fdb_table.offloads; struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; struct mlx5_eswitch_rep *vport = NULL; bool push, pop, fwd; int err = 0; /* nop if we're on the vlan push/pop non emulation mode */ if (mlx5_eswitch_vlan_actions_supported(esw->dev, 1)) return 0; push = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH); pop = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP); fwd = !!((attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) && !attr->dest_chain); mutex_lock(&esw->state_lock); err = esw_add_vlan_action_check(esw_attr, push, pop, fwd); if (err) goto unlock; attr->flags &= ~MLX5_ATTR_FLAG_VLAN_HANDLED; vport = esw_vlan_action_get_vport(esw_attr, push, pop); if (!push && !pop && fwd) { /* tracks VF --> wire rules without vlan push action */ if (esw_attr->dests[0].rep->vport == MLX5_VPORT_UPLINK) { vport->vlan_refcount++; attr->flags |= MLX5_ATTR_FLAG_VLAN_HANDLED; } goto unlock; } if (!push && !pop) goto unlock; if (!(offloads->vlan_push_pop_refcount)) { /* it's the 1st vlan rule, apply global vlan pop policy */ err = esw_set_global_vlan_pop(esw, SET_VLAN_STRIP); if (err) goto out; } offloads->vlan_push_pop_refcount++; if (push) { if (vport->vlan_refcount) goto skip_set_push; err = __mlx5_eswitch_set_vport_vlan(esw, vport->vport, esw_attr->vlan_vid[0], 0, SET_VLAN_INSERT | SET_VLAN_STRIP); if (err) goto out; vport->vlan = esw_attr->vlan_vid[0]; skip_set_push: vport->vlan_refcount++; } out: if (!err) attr->flags |= MLX5_ATTR_FLAG_VLAN_HANDLED; unlock: mutex_unlock(&esw->state_lock); return err; } int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr) { struct offloads_fdb *offloads = &esw->fdb_table.offloads; struct mlx5_esw_flow_attr *esw_attr = attr->esw_attr; struct mlx5_eswitch_rep *vport = NULL; bool push, pop, fwd; int err = 0; /* nop if we're on the vlan push/pop non emulation mode */ if (mlx5_eswitch_vlan_actions_supported(esw->dev, 1)) return 0; if (!(attr->flags & MLX5_ATTR_FLAG_VLAN_HANDLED)) return 0; push = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH); pop = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP); fwd = !!(attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST); mutex_lock(&esw->state_lock); vport = esw_vlan_action_get_vport(esw_attr, push, pop); if (!push && !pop && fwd) { /* tracks VF --> wire rules without vlan push action */ if (esw_attr->dests[0].rep->vport == MLX5_VPORT_UPLINK) vport->vlan_refcount--; goto out; } if (push) { vport->vlan_refcount--; if (vport->vlan_refcount) goto skip_unset_push; vport->vlan = 0; err = __mlx5_eswitch_set_vport_vlan(esw, vport->vport, 0, 0, SET_VLAN_STRIP); if (err) goto out; } skip_unset_push: offloads->vlan_push_pop_refcount--; if (offloads->vlan_push_pop_refcount) goto out; /* no more vlan rules, stop global vlan pop policy */ err = esw_set_global_vlan_pop(esw, 0); out: mutex_unlock(&esw->state_lock); return err; } struct mlx5_flow_handle * mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *on_esw, struct mlx5_eswitch *from_esw, struct mlx5_eswitch_rep *rep, u32 sqn) { struct mlx5_flow_act flow_act = {0}; struct mlx5_flow_destination dest = {}; struct mlx5_flow_handle *flow_rule; struct mlx5_flow_spec *spec; void *misc; spec = kvzalloc(sizeof(*spec), GFP_KERNEL); if (!spec) { flow_rule = ERR_PTR(-ENOMEM); goto out; } misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters); MLX5_SET(fte_match_set_misc, misc, source_sqn, sqn); /* source vport is the esw manager */ MLX5_SET(fte_match_set_misc, misc, source_port, from_esw->manager_vport); if (MLX5_CAP_ESW(on_esw->dev, merged_eswitch)) MLX5_SET(fte_match_set_misc, misc, source_eswitch_owner_vhca_id, MLX5_CAP_GEN(from_esw->dev, vhca_id)); misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters); MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_sqn); MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port); if (MLX5_CAP_ESW(on_esw->dev, merged_eswitch)) MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_eswitch_owner_vhca_id); spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS; dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT; dest.vport.num = rep->vport; dest.vport.vhca_id = MLX5_CAP_GEN(rep->esw->dev, vhca_id); dest.vport.flags |= MLX5_FLOW_DEST_VPORT_VHCA_ID; flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; if (rep->vport == MLX5_VPORT_UPLINK) spec->flow_context.flow_source = MLX5_FLOW_CONTEXT_FLOW_SOURCE_LOCAL_VPORT; flow_rule = mlx5_add_flow_rules(on_esw->fdb_table.offloads.slow_fdb, spec, &flow_act, &dest, 1); if (IS_ERR(flow_rule)) esw_warn(on_esw->dev, "FDB: Failed to add send to vport rule err %ld\n", PTR_ERR(flow_rule)); out: kvfree(spec); return flow_rule; } EXPORT_SYMBOL(mlx5_eswitch_add_send_to_vport_rule); void mlx5_eswitch_del_send_to_vport_rule(struct mlx5_flow_handle *rule) { mlx5_del_flow_rules(rule); } void mlx5_eswitch_del_send_to_vport_meta_rule(struct mlx5_flow_handle *rule) { if (rule) mlx5_del_flow_rules(rule); } struct mlx5_flow_handle * mlx5_eswitch_add_send_to_vport_meta_rule(struct mlx5_eswitch *esw, u16 vport_num) { struct mlx5_flow_destination dest = {}; struct mlx5_flow_act flow_act = {0}; struct mlx5_flow_handle *flow_rule; struct mlx5_flow_spec *spec; spec = kvzalloc(sizeof(*spec), GFP_KERNEL); if (!spec) return ERR_PTR(-ENOMEM); MLX5_SET(fte_match_param, spec->match_criteria, misc_parameters_2.metadata_reg_c_0, mlx5_eswitch_get_vport_metadata_mask()); MLX5_SET(fte_match_param, spec->match_criteria, misc_parameters_2.metadata_reg_c_1, ESW_TUN_MASK); MLX5_SET(fte_match_param, spec->match_value, misc_parameters_2.metadata_reg_c_1, ESW_TUN_SLOW_TABLE_GOTO_VPORT_MARK); spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS_2; dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT; flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; MLX5_SET(fte_match_param, spec->match_value, misc_parameters_2.metadata_reg_c_0, mlx5_eswitch_get_vport_metadata_for_match(esw, vport_num)); dest.vport.num = vport_num; flow_rule = mlx5_add_flow_rules(esw->fdb_table.offloads.slow_fdb, spec, &flow_act, &dest, 1); if (IS_ERR(flow_rule)) esw_warn(esw->dev, "FDB: Failed to add send to vport meta rule vport %d, err %ld\n", vport_num, PTR_ERR(flow_rule)); kvfree(spec); return flow_rule; } static bool mlx5_eswitch_reg_c1_loopback_supported(struct mlx5_eswitch *esw) { return MLX5_CAP_ESW_FLOWTABLE(esw->dev, fdb_to_vport_reg_c_id) & MLX5_FDB_TO_VPORT_REG_C_1; } static int esw_set_passing_vport_metadata(struct mlx5_eswitch *esw, bool enable) { u32 out[MLX5_ST_SZ_DW(query_esw_vport_context_out)] = {}; u32 min[MLX5_ST_SZ_DW(modify_esw_vport_context_in)] = {}; u32 in[MLX5_ST_SZ_DW(query_esw_vport_context_in)] = {}; u8 curr, wanted; int err; if (!mlx5_eswitch_reg_c1_loopback_supported(esw) && !mlx5_eswitch_vport_match_metadata_enabled(esw)) return 0; MLX5_SET(query_esw_vport_context_in, in, opcode, MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT); err = mlx5_cmd_exec_inout(esw->dev, query_esw_vport_context, in, out); if (err) return err; curr = MLX5_GET(query_esw_vport_context_out, out, esw_vport_context.fdb_to_vport_reg_c_id); wanted = MLX5_FDB_TO_VPORT_REG_C_0; if (mlx5_eswitch_reg_c1_loopback_supported(esw)) wanted |= MLX5_FDB_TO_VPORT_REG_C_1; if (enable) curr |= wanted; else curr &= ~wanted; MLX5_SET(modify_esw_vport_context_in, min, esw_vport_context.fdb_to_vport_reg_c_id, curr); MLX5_SET(modify_esw_vport_context_in, min, field_select.fdb_to_vport_reg_c_id, 1); err = mlx5_eswitch_modify_esw_vport_context(esw->dev, 0, false, min); if (!err) { if (enable && (curr & MLX5_FDB_TO_VPORT_REG_C_1)) esw->flags |= MLX5_ESWITCH_REG_C1_LOOPBACK_ENABLED; else esw->flags &= ~MLX5_ESWITCH_REG_C1_LOOPBACK_ENABLED; } return err; } static void peer_miss_rules_setup(struct mlx5_eswitch *esw, struct mlx5_core_dev *peer_dev, struct mlx5_flow_spec *spec, struct mlx5_flow_destination *dest) { void *misc; if (mlx5_eswitch_vport_match_metadata_enabled(esw)) { misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters_2); MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0, mlx5_eswitch_get_vport_metadata_mask()); spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS_2; } else { misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters); MLX5_SET(fte_match_set_misc, misc, source_eswitch_owner_vhca_id, MLX5_CAP_GEN(peer_dev, vhca_id)); spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS; misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters); MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port); MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_eswitch_owner_vhca_id); } dest->type = MLX5_FLOW_DESTINATION_TYPE_VPORT; dest->vport.num = peer_dev->priv.eswitch->manager_vport; dest->vport.vhca_id = MLX5_CAP_GEN(peer_dev, vhca_id); dest->vport.flags |= MLX5_FLOW_DEST_VPORT_VHCA_ID; } static void esw_set_peer_miss_rule_source_port(struct mlx5_eswitch *esw, struct mlx5_eswitch *peer_esw, struct mlx5_flow_spec *spec, u16 vport) { void *misc; if (mlx5_eswitch_vport_match_metadata_enabled(esw)) { misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters_2); MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0, mlx5_eswitch_get_vport_metadata_for_match(peer_esw, vport)); } else { misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters); MLX5_SET(fte_match_set_misc, misc, source_port, vport); } } static int esw_add_fdb_peer_miss_rules(struct mlx5_eswitch *esw, struct mlx5_core_dev *peer_dev) { struct mlx5_flow_destination dest = {}; struct mlx5_flow_act flow_act = {0}; struct mlx5_flow_handle **flows; /* total vports is the same for both e-switches */ int nvports = esw->total_vports; struct mlx5_flow_handle *flow; struct mlx5_flow_spec *spec; struct mlx5_vport *vport; unsigned long i; void *misc; int err; spec = kvzalloc(sizeof(*spec), GFP_KERNEL); if (!spec) return -ENOMEM; peer_miss_rules_setup(esw, peer_dev, spec, &dest); flows = kvcalloc(nvports, sizeof(*flows), GFP_KERNEL); if (!flows) { err = -ENOMEM; goto alloc_flows_err; } flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters); if (mlx5_core_is_ecpf_esw_manager(esw->dev)) { vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_PF); esw_set_peer_miss_rule_source_port(esw, peer_dev->priv.eswitch, spec, MLX5_VPORT_PF); flow = mlx5_add_flow_rules(esw->fdb_table.offloads.slow_fdb, spec, &flow_act, &dest, 1); if (IS_ERR(flow)) { err = PTR_ERR(flow); goto add_pf_flow_err; } flows[vport->index] = flow; } if (mlx5_ecpf_vport_exists(esw->dev)) { vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_ECPF); MLX5_SET(fte_match_set_misc, misc, source_port, MLX5_VPORT_ECPF); flow = mlx5_add_flow_rules(esw->fdb_table.offloads.slow_fdb, spec, &flow_act, &dest, 1); if (IS_ERR(flow)) { err = PTR_ERR(flow); goto add_ecpf_flow_err; } flows[vport->index] = flow; } mlx5_esw_for_each_vf_vport(esw, i, vport, mlx5_core_max_vfs(esw->dev)) { esw_set_peer_miss_rule_source_port(esw, peer_dev->priv.eswitch, spec, vport->vport); flow = mlx5_add_flow_rules(esw->fdb_table.offloads.slow_fdb, spec, &flow_act, &dest, 1); if (IS_ERR(flow)) { err = PTR_ERR(flow); goto add_vf_flow_err; } flows[vport->index] = flow; } esw->fdb_table.offloads.peer_miss_rules = flows; kvfree(spec); return 0; add_vf_flow_err: mlx5_esw_for_each_vf_vport(esw, i, vport, mlx5_core_max_vfs(esw->dev)) { if (!flows[vport->index]) continue; mlx5_del_flow_rules(flows[vport->index]); } if (mlx5_ecpf_vport_exists(esw->dev)) { vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_ECPF); mlx5_del_flow_rules(flows[vport->index]); } add_ecpf_flow_err: if (mlx5_core_is_ecpf_esw_manager(esw->dev)) { vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_PF); mlx5_del_flow_rules(flows[vport->index]); } add_pf_flow_err: esw_warn(esw->dev, "FDB: Failed to add peer miss flow rule err %d\n", err); kvfree(flows); alloc_flows_err: kvfree(spec); return err; } static void esw_del_fdb_peer_miss_rules(struct mlx5_eswitch *esw) { struct mlx5_flow_handle **flows; struct mlx5_vport *vport; unsigned long i; flows = esw->fdb_table.offloads.peer_miss_rules; mlx5_esw_for_each_vf_vport(esw, i, vport, mlx5_core_max_vfs(esw->dev)) mlx5_del_flow_rules(flows[vport->index]); if (mlx5_ecpf_vport_exists(esw->dev)) { vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_ECPF); mlx5_del_flow_rules(flows[vport->index]); } if (mlx5_core_is_ecpf_esw_manager(esw->dev)) { vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_PF); mlx5_del_flow_rules(flows[vport->index]); } kvfree(flows); } static int esw_add_fdb_miss_rule(struct mlx5_eswitch *esw) { struct mlx5_flow_act flow_act = {0}; struct mlx5_flow_destination dest = {}; struct mlx5_flow_handle *flow_rule = NULL; struct mlx5_flow_spec *spec; void *headers_c; void *headers_v; int err = 0; u8 *dmac_c; u8 *dmac_v; spec = kvzalloc(sizeof(*spec), GFP_KERNEL); if (!spec) { err = -ENOMEM; goto out; } spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS; headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, outer_headers); dmac_c = MLX5_ADDR_OF(fte_match_param, headers_c, outer_headers.dmac_47_16); dmac_c[0] = 0x01; dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT; dest.vport.num = esw->manager_vport; flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; flow_rule = mlx5_add_flow_rules(esw->fdb_table.offloads.slow_fdb, spec, &flow_act, &dest, 1); if (IS_ERR(flow_rule)) { err = PTR_ERR(flow_rule); esw_warn(esw->dev, "FDB: Failed to add unicast miss flow rule err %d\n", err); goto out; } esw->fdb_table.offloads.miss_rule_uni = flow_rule; headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers); dmac_v = MLX5_ADDR_OF(fte_match_param, headers_v, outer_headers.dmac_47_16); dmac_v[0] = 0x01; flow_rule = mlx5_add_flow_rules(esw->fdb_table.offloads.slow_fdb, spec, &flow_act, &dest, 1); if (IS_ERR(flow_rule)) { err = PTR_ERR(flow_rule); esw_warn(esw->dev, "FDB: Failed to add multicast miss flow rule err %d\n", err); mlx5_del_flow_rules(esw->fdb_table.offloads.miss_rule_uni); goto out; } esw->fdb_table.offloads.miss_rule_multi = flow_rule; out: kvfree(spec); return err; } struct mlx5_flow_handle * esw_add_restore_rule(struct mlx5_eswitch *esw, u32 tag) { struct mlx5_flow_act flow_act = { .flags = FLOW_ACT_NO_APPEND, }; struct mlx5_flow_table *ft = esw->offloads.ft_offloads_restore; struct mlx5_flow_context *flow_context; struct mlx5_flow_handle *flow_rule; struct mlx5_flow_destination dest; struct mlx5_flow_spec *spec; void *misc; if (!mlx5_eswitch_reg_c1_loopback_supported(esw)) return ERR_PTR(-EOPNOTSUPP); spec = kvzalloc(sizeof(*spec), GFP_KERNEL); if (!spec) return ERR_PTR(-ENOMEM); misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters_2); MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0, ESW_REG_C0_USER_DATA_METADATA_MASK); misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters_2); MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0, tag); spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS_2; flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST | MLX5_FLOW_CONTEXT_ACTION_MOD_HDR; flow_act.modify_hdr = esw->offloads.restore_copy_hdr_id; flow_context = &spec->flow_context; flow_context->flags |= FLOW_CONTEXT_HAS_TAG; flow_context->flow_tag = tag; dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE; dest.ft = esw->offloads.ft_offloads; flow_rule = mlx5_add_flow_rules(ft, spec, &flow_act, &dest, 1); kvfree(spec); if (IS_ERR(flow_rule)) esw_warn(esw->dev, "Failed to create restore rule for tag: %d, err(%d)\n", tag, (int)PTR_ERR(flow_rule)); return flow_rule; } #define MAX_PF_SQ 256 #define MAX_SQ_NVPORTS 32 static void esw_set_flow_group_source_port(struct mlx5_eswitch *esw, u32 *flow_group_in) { void *match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria); if (mlx5_eswitch_vport_match_metadata_enabled(esw)) { MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_MISC_PARAMETERS_2); MLX5_SET(fte_match_param, match_criteria, misc_parameters_2.metadata_reg_c_0, mlx5_eswitch_get_vport_metadata_mask()); } else { MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_MISC_PARAMETERS); MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_port); } } #if IS_ENABLED(CONFIG_MLX5_CLS_ACT) static void esw_vport_tbl_put(struct mlx5_eswitch *esw) { struct mlx5_vport_tbl_attr attr; struct mlx5_vport *vport; unsigned long i; attr.chain = 0; attr.prio = 1; mlx5_esw_for_each_vport(esw, i, vport) { attr.vport = vport->vport; attr.vport_ns = &mlx5_esw_vport_tbl_mirror_ns; mlx5_esw_vporttbl_put(esw, &attr); } } static int esw_vport_tbl_get(struct mlx5_eswitch *esw) { struct mlx5_vport_tbl_attr attr; struct mlx5_flow_table *fdb; struct mlx5_vport *vport; unsigned long i; attr.chain = 0; attr.prio = 1; mlx5_esw_for_each_vport(esw, i, vport) { attr.vport = vport->vport; attr.vport_ns = &mlx5_esw_vport_tbl_mirror_ns; fdb = mlx5_esw_vporttbl_get(esw, &attr); if (IS_ERR(fdb)) goto out; } return 0; out: esw_vport_tbl_put(esw); return PTR_ERR(fdb); } #define fdb_modify_header_fwd_to_table_supported(esw) \ (MLX5_CAP_ESW_FLOWTABLE((esw)->dev, fdb_modify_header_fwd_to_table)) static void esw_init_chains_offload_flags(struct mlx5_eswitch *esw, u32 *flags) { struct mlx5_core_dev *dev = esw->dev; if (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, ignore_flow_level)) *flags |= MLX5_CHAINS_IGNORE_FLOW_LEVEL_SUPPORTED; if (!MLX5_CAP_ESW_FLOWTABLE(dev, multi_fdb_encap) && esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE) { *flags &= ~MLX5_CHAINS_AND_PRIOS_SUPPORTED; esw_warn(dev, "Tc chains and priorities offload aren't supported, update firmware if needed\n"); } else if (!mlx5_eswitch_reg_c1_loopback_enabled(esw)) { *flags &= ~MLX5_CHAINS_AND_PRIOS_SUPPORTED; esw_warn(dev, "Tc chains and priorities offload aren't supported\n"); } else if (!fdb_modify_header_fwd_to_table_supported(esw)) { /* Disabled when ttl workaround is needed, e.g * when ESWITCH_IPV4_TTL_MODIFY_ENABLE = true in mlxconfig */ esw_warn(dev, "Tc chains and priorities offload aren't supported, check firmware version, or mlxconfig settings\n"); *flags &= ~MLX5_CHAINS_AND_PRIOS_SUPPORTED; } else { *flags |= MLX5_CHAINS_AND_PRIOS_SUPPORTED; esw_info(dev, "Supported tc chains and prios offload\n"); } if (esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE) *flags |= MLX5_CHAINS_FT_TUNNEL_SUPPORTED; } static int esw_chains_create(struct mlx5_eswitch *esw, struct mlx5_flow_table *miss_fdb) { struct mlx5_core_dev *dev = esw->dev; struct mlx5_flow_table *nf_ft, *ft; struct mlx5_chains_attr attr = {}; struct mlx5_fs_chains *chains; u32 fdb_max; int err; fdb_max = 1 << MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size); esw_init_chains_offload_flags(esw, &attr.flags); attr.ns = MLX5_FLOW_NAMESPACE_FDB; attr.max_ft_sz = fdb_max; attr.max_grp_num = esw->params.large_group_num; attr.default_ft = miss_fdb; attr.mapping = esw->offloads.reg_c0_obj_pool; chains = mlx5_chains_create(dev, &attr); if (IS_ERR(chains)) { err = PTR_ERR(chains); esw_warn(dev, "Failed to create fdb chains err(%d)\n", err); return err; } esw->fdb_table.offloads.esw_chains_priv = chains; /* Create tc_end_ft which is the always created ft chain */ nf_ft = mlx5_chains_get_table(chains, mlx5_chains_get_nf_ft_chain(chains), 1, 0); if (IS_ERR(nf_ft)) { err = PTR_ERR(nf_ft); goto nf_ft_err; } /* Always open the root for fast path */ ft = mlx5_chains_get_table(chains, 0, 1, 0); if (IS_ERR(ft)) { err = PTR_ERR(ft); goto level_0_err; } /* Open level 1 for split fdb rules now if prios isn't supported */ if (!mlx5_chains_prios_supported(chains)) { err = esw_vport_tbl_get(esw); if (err) goto level_1_err; } mlx5_chains_set_end_ft(chains, nf_ft); return 0; level_1_err: mlx5_chains_put_table(chains, 0, 1, 0); level_0_err: mlx5_chains_put_table(chains, mlx5_chains_get_nf_ft_chain(chains), 1, 0); nf_ft_err: mlx5_chains_destroy(chains); esw->fdb_table.offloads.esw_chains_priv = NULL; return err; } static void esw_chains_destroy(struct mlx5_eswitch *esw, struct mlx5_fs_chains *chains) { if (!mlx5_chains_prios_supported(chains)) esw_vport_tbl_put(esw); mlx5_chains_put_table(chains, 0, 1, 0); mlx5_chains_put_table(chains, mlx5_chains_get_nf_ft_chain(chains), 1, 0); mlx5_chains_destroy(chains); } #else /* CONFIG_MLX5_CLS_ACT */ static int esw_chains_create(struct mlx5_eswitch *esw, struct mlx5_flow_table *miss_fdb) { return 0; } static void esw_chains_destroy(struct mlx5_eswitch *esw, struct mlx5_fs_chains *chains) {} #endif static int esw_create_send_to_vport_group(struct mlx5_eswitch *esw, struct mlx5_flow_table *fdb, u32 *flow_group_in, int *ix) { int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); struct mlx5_flow_group *g; void *match_criteria; int count, err = 0; memset(flow_group_in, 0, inlen); MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_MISC_PARAMETERS); match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria); MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_sqn); MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_port); if (MLX5_CAP_ESW(esw->dev, merged_eswitch)) { MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_eswitch_owner_vhca_id); MLX5_SET(create_flow_group_in, flow_group_in, source_eswitch_owner_vhca_id_valid, 1); } /* See comment at table_size calculation */ count = MLX5_MAX_PORTS * (esw->total_vports * MAX_SQ_NVPORTS + MAX_PF_SQ); MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0); MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, *ix + count - 1); *ix += count; g = mlx5_create_flow_group(fdb, flow_group_in); if (IS_ERR(g)) { err = PTR_ERR(g); esw_warn(esw->dev, "Failed to create send-to-vport flow group err(%d)\n", err); goto out; } esw->fdb_table.offloads.send_to_vport_grp = g; out: return err; } static int esw_create_meta_send_to_vport_group(struct mlx5_eswitch *esw, struct mlx5_flow_table *fdb, u32 *flow_group_in, int *ix) { int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); struct mlx5_flow_group *g; void *match_criteria; int err = 0; if (!esw_src_port_rewrite_supported(esw)) return 0; memset(flow_group_in, 0, inlen); MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_MISC_PARAMETERS_2); match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria); MLX5_SET(fte_match_param, match_criteria, misc_parameters_2.metadata_reg_c_0, mlx5_eswitch_get_vport_metadata_mask()); MLX5_SET(fte_match_param, match_criteria, misc_parameters_2.metadata_reg_c_1, ESW_TUN_MASK); MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, *ix); MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, *ix + esw->total_vports - 1); *ix += esw->total_vports; g = mlx5_create_flow_group(fdb, flow_group_in); if (IS_ERR(g)) { err = PTR_ERR(g); esw_warn(esw->dev, "Failed to create send-to-vport meta flow group err(%d)\n", err); goto send_vport_meta_err; } esw->fdb_table.offloads.send_to_vport_meta_grp = g; return 0; send_vport_meta_err: return err; } static int esw_create_peer_esw_miss_group(struct mlx5_eswitch *esw, struct mlx5_flow_table *fdb, u32 *flow_group_in, int *ix) { int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); struct mlx5_flow_group *g; void *match_criteria; int err = 0; if (!MLX5_CAP_ESW(esw->dev, merged_eswitch)) return 0; memset(flow_group_in, 0, inlen); esw_set_flow_group_source_port(esw, flow_group_in); if (!mlx5_eswitch_vport_match_metadata_enabled(esw)) { match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria); MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_eswitch_owner_vhca_id); MLX5_SET(create_flow_group_in, flow_group_in, source_eswitch_owner_vhca_id_valid, 1); } MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, *ix); MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, *ix + esw->total_vports - 1); *ix += esw->total_vports; g = mlx5_create_flow_group(fdb, flow_group_in); if (IS_ERR(g)) { err = PTR_ERR(g); esw_warn(esw->dev, "Failed to create peer miss flow group err(%d)\n", err); goto out; } esw->fdb_table.offloads.peer_miss_grp = g; out: return err; } static int esw_create_miss_group(struct mlx5_eswitch *esw, struct mlx5_flow_table *fdb, u32 *flow_group_in, int *ix) { int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); struct mlx5_flow_group *g; void *match_criteria; int err = 0; u8 *dmac; memset(flow_group_in, 0, inlen); MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS); match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria); dmac = MLX5_ADDR_OF(fte_match_param, match_criteria, outer_headers.dmac_47_16); dmac[0] = 0x01; MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, *ix); MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, *ix + MLX5_ESW_MISS_FLOWS); g = mlx5_create_flow_group(fdb, flow_group_in); if (IS_ERR(g)) { err = PTR_ERR(g); esw_warn(esw->dev, "Failed to create miss flow group err(%d)\n", err); goto miss_err; } esw->fdb_table.offloads.miss_grp = g; err = esw_add_fdb_miss_rule(esw); if (err) goto miss_rule_err; return 0; miss_rule_err: mlx5_destroy_flow_group(esw->fdb_table.offloads.miss_grp); miss_err: return err; } static int esw_create_offloads_fdb_tables(struct mlx5_eswitch *esw) { int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); struct mlx5_flow_table_attr ft_attr = {}; struct mlx5_core_dev *dev = esw->dev; struct mlx5_flow_namespace *root_ns; struct mlx5_flow_table *fdb = NULL; int table_size, ix = 0, err = 0; u32 flags = 0, *flow_group_in; esw_debug(esw->dev, "Create offloads FDB Tables\n"); flow_group_in = kvzalloc(inlen, GFP_KERNEL); if (!flow_group_in) return -ENOMEM; root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_FDB); if (!root_ns) { esw_warn(dev, "Failed to get FDB flow namespace\n"); err = -EOPNOTSUPP; goto ns_err; } esw->fdb_table.offloads.ns = root_ns; err = mlx5_flow_namespace_set_mode(root_ns, esw->dev->priv.steering->mode); if (err) { esw_warn(dev, "Failed to set FDB namespace steering mode\n"); goto ns_err; } /* To be strictly correct: * MLX5_MAX_PORTS * (esw->total_vports * MAX_SQ_NVPORTS + MAX_PF_SQ) * should be: * esw->total_vports * MAX_SQ_NVPORTS + MAX_PF_SQ + * peer_esw->total_vports * MAX_SQ_NVPORTS + MAX_PF_SQ * but as the peer device might not be in switchdev mode it's not * possible. We use the fact that by default FW sets max vfs and max sfs * to the same value on both devices. If it needs to be changed in the future note * the peer miss group should also be created based on the number of * total vports of the peer (currently is also uses esw->total_vports). */ table_size = MLX5_MAX_PORTS * (esw->total_vports * MAX_SQ_NVPORTS + MAX_PF_SQ) + esw->total_vports * 2 + MLX5_ESW_MISS_FLOWS; /* create the slow path fdb with encap set, so further table instances * can be created at run time while VFs are probed if the FW allows that. */ if (esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE) flags |= (MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT | MLX5_FLOW_TABLE_TUNNEL_EN_DECAP); ft_attr.flags = flags; ft_attr.max_fte = table_size; ft_attr.prio = FDB_SLOW_PATH; fdb = mlx5_create_flow_table(root_ns, &ft_attr); if (IS_ERR(fdb)) { err = PTR_ERR(fdb); esw_warn(dev, "Failed to create slow path FDB Table err %d\n", err); goto slow_fdb_err; } esw->fdb_table.offloads.slow_fdb = fdb; /* Create empty TC-miss managed table. This allows plugging in following * priorities without directly exposing their level 0 table to * eswitch_offloads and passing it as miss_fdb to following call to * esw_chains_create(). */ memset(&ft_attr, 0, sizeof(ft_attr)); ft_attr.prio = FDB_TC_MISS; esw->fdb_table.offloads.tc_miss_table = mlx5_create_flow_table(root_ns, &ft_attr); if (IS_ERR(esw->fdb_table.offloads.tc_miss_table)) { err = PTR_ERR(esw->fdb_table.offloads.tc_miss_table); esw_warn(dev, "Failed to create TC miss FDB Table err %d\n", err); goto tc_miss_table_err; } err = esw_chains_create(esw, esw->fdb_table.offloads.tc_miss_table); if (err) { esw_warn(dev, "Failed to open fdb chains err(%d)\n", err); goto fdb_chains_err; } err = esw_create_send_to_vport_group(esw, fdb, flow_group_in, &ix); if (err) goto send_vport_err; err = esw_create_meta_send_to_vport_group(esw, fdb, flow_group_in, &ix); if (err) goto send_vport_meta_err; err = esw_create_peer_esw_miss_group(esw, fdb, flow_group_in, &ix); if (err) goto peer_miss_err; err = esw_create_miss_group(esw, fdb, flow_group_in, &ix); if (err) goto miss_err; kvfree(flow_group_in); return 0; miss_err: if (MLX5_CAP_ESW(esw->dev, merged_eswitch)) mlx5_destroy_flow_group(esw->fdb_table.offloads.peer_miss_grp); peer_miss_err: if (esw->fdb_table.offloads.send_to_vport_meta_grp) mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_meta_grp); send_vport_meta_err: mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_grp); send_vport_err: esw_chains_destroy(esw, esw_chains(esw)); fdb_chains_err: mlx5_destroy_flow_table(esw->fdb_table.offloads.tc_miss_table); tc_miss_table_err: mlx5_destroy_flow_table(esw->fdb_table.offloads.slow_fdb); slow_fdb_err: /* Holds true only as long as DMFS is the default */ mlx5_flow_namespace_set_mode(root_ns, MLX5_FLOW_STEERING_MODE_DMFS); ns_err: kvfree(flow_group_in); return err; } static void esw_destroy_offloads_fdb_tables(struct mlx5_eswitch *esw) { if (!esw->fdb_table.offloads.slow_fdb) return; esw_debug(esw->dev, "Destroy offloads FDB Tables\n"); mlx5_del_flow_rules(esw->fdb_table.offloads.miss_rule_multi); mlx5_del_flow_rules(esw->fdb_table.offloads.miss_rule_uni); mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_grp); if (esw->fdb_table.offloads.send_to_vport_meta_grp) mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_meta_grp); if (MLX5_CAP_ESW(esw->dev, merged_eswitch)) mlx5_destroy_flow_group(esw->fdb_table.offloads.peer_miss_grp); mlx5_destroy_flow_group(esw->fdb_table.offloads.miss_grp); esw_chains_destroy(esw, esw_chains(esw)); mlx5_destroy_flow_table(esw->fdb_table.offloads.tc_miss_table); mlx5_destroy_flow_table(esw->fdb_table.offloads.slow_fdb); /* Holds true only as long as DMFS is the default */ mlx5_flow_namespace_set_mode(esw->fdb_table.offloads.ns, MLX5_FLOW_STEERING_MODE_DMFS); atomic64_set(&esw->user_count, 0); } static int esw_get_nr_ft_offloads_steering_src_ports(struct mlx5_eswitch *esw) { int nvports; nvports = esw->total_vports + MLX5_ESW_MISS_FLOWS; if (mlx5e_tc_int_port_supported(esw)) nvports += MLX5E_TC_MAX_INT_PORT_NUM; return nvports; } static int esw_create_offloads_table(struct mlx5_eswitch *esw) { struct mlx5_flow_table_attr ft_attr = {}; struct mlx5_core_dev *dev = esw->dev; struct mlx5_flow_table *ft_offloads; struct mlx5_flow_namespace *ns; int err = 0; ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_OFFLOADS); if (!ns) { esw_warn(esw->dev, "Failed to get offloads flow namespace\n"); return -EOPNOTSUPP; } ft_attr.max_fte = esw_get_nr_ft_offloads_steering_src_ports(esw) + MLX5_ESW_FT_OFFLOADS_DROP_RULE; ft_attr.prio = 1; ft_offloads = mlx5_create_flow_table(ns, &ft_attr); if (IS_ERR(ft_offloads)) { err = PTR_ERR(ft_offloads); esw_warn(esw->dev, "Failed to create offloads table, err %d\n", err); return err; } esw->offloads.ft_offloads = ft_offloads; return 0; } static void esw_destroy_offloads_table(struct mlx5_eswitch *esw) { struct mlx5_esw_offload *offloads = &esw->offloads; mlx5_destroy_flow_table(offloads->ft_offloads); } static int esw_create_vport_rx_group(struct mlx5_eswitch *esw) { int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); struct mlx5_flow_group *g; u32 *flow_group_in; int nvports; int err = 0; nvports = esw_get_nr_ft_offloads_steering_src_ports(esw); flow_group_in = kvzalloc(inlen, GFP_KERNEL); if (!flow_group_in) return -ENOMEM; /* create vport rx group */ esw_set_flow_group_source_port(esw, flow_group_in); MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0); MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, nvports - 1); g = mlx5_create_flow_group(esw->offloads.ft_offloads, flow_group_in); if (IS_ERR(g)) { err = PTR_ERR(g); mlx5_core_warn(esw->dev, "Failed to create vport rx group err %d\n", err); goto out; } esw->offloads.vport_rx_group = g; out: kvfree(flow_group_in); return err; } static void esw_destroy_vport_rx_group(struct mlx5_eswitch *esw) { mlx5_destroy_flow_group(esw->offloads.vport_rx_group); } static int esw_create_vport_rx_drop_rule_index(struct mlx5_eswitch *esw) { /* ft_offloads table is enlarged by MLX5_ESW_FT_OFFLOADS_DROP_RULE (1) * for the drop rule, which is placed at the end of the table. * So return the total of vport and int_port as rule index. */ return esw_get_nr_ft_offloads_steering_src_ports(esw); } static int esw_create_vport_rx_drop_group(struct mlx5_eswitch *esw) { int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); struct mlx5_flow_group *g; u32 *flow_group_in; int flow_index; int err = 0; flow_index = esw_create_vport_rx_drop_rule_index(esw); flow_group_in = kvzalloc(inlen, GFP_KERNEL); if (!flow_group_in) return -ENOMEM; MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, flow_index); MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, flow_index); g = mlx5_create_flow_group(esw->offloads.ft_offloads, flow_group_in); if (IS_ERR(g)) { err = PTR_ERR(g); mlx5_core_warn(esw->dev, "Failed to create vport rx drop group err %d\n", err); goto out; } esw->offloads.vport_rx_drop_group = g; out: kvfree(flow_group_in); return err; } static void esw_destroy_vport_rx_drop_group(struct mlx5_eswitch *esw) { if (esw->offloads.vport_rx_drop_group) mlx5_destroy_flow_group(esw->offloads.vport_rx_drop_group); } struct mlx5_flow_handle * mlx5_eswitch_create_vport_rx_rule(struct mlx5_eswitch *esw, u16 vport, struct mlx5_flow_destination *dest) { struct mlx5_flow_act flow_act = {0}; struct mlx5_flow_handle *flow_rule; struct mlx5_flow_spec *spec; void *misc; spec = kvzalloc(sizeof(*spec), GFP_KERNEL); if (!spec) { flow_rule = ERR_PTR(-ENOMEM); goto out; } if (mlx5_eswitch_vport_match_metadata_enabled(esw)) { misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters_2); MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0, mlx5_eswitch_get_vport_metadata_for_match(esw, vport)); misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters_2); MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0, mlx5_eswitch_get_vport_metadata_mask()); spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS_2; } else { misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters); MLX5_SET(fte_match_set_misc, misc, source_port, vport); misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters); MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port); spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS; } flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; flow_rule = mlx5_add_flow_rules(esw->offloads.ft_offloads, spec, &flow_act, dest, 1); if (IS_ERR(flow_rule)) { esw_warn(esw->dev, "fs offloads: Failed to add vport rx rule err %ld\n", PTR_ERR(flow_rule)); goto out; } out: kvfree(spec); return flow_rule; } static int esw_create_vport_rx_drop_rule(struct mlx5_eswitch *esw) { struct mlx5_flow_act flow_act = {}; struct mlx5_flow_handle *flow_rule; flow_act.action = MLX5_FLOW_CONTEXT_ACTION_DROP; flow_rule = mlx5_add_flow_rules(esw->offloads.ft_offloads, NULL, &flow_act, NULL, 0); if (IS_ERR(flow_rule)) { esw_warn(esw->dev, "fs offloads: Failed to add vport rx drop rule err %ld\n", PTR_ERR(flow_rule)); return PTR_ERR(flow_rule); } esw->offloads.vport_rx_drop_rule = flow_rule; return 0; } static void esw_destroy_vport_rx_drop_rule(struct mlx5_eswitch *esw) { if (esw->offloads.vport_rx_drop_rule) mlx5_del_flow_rules(esw->offloads.vport_rx_drop_rule); } static int mlx5_eswitch_inline_mode_get(struct mlx5_eswitch *esw, u8 *mode) { u8 prev_mlx5_mode, mlx5_mode = MLX5_INLINE_MODE_L2; struct mlx5_core_dev *dev = esw->dev; struct mlx5_vport *vport; unsigned long i; if (!MLX5_CAP_GEN(dev, vport_group_manager)) return -EOPNOTSUPP; if (!mlx5_esw_is_fdb_created(esw)) return -EOPNOTSUPP; switch (MLX5_CAP_ETH(dev, wqe_inline_mode)) { case MLX5_CAP_INLINE_MODE_NOT_REQUIRED: mlx5_mode = MLX5_INLINE_MODE_NONE; goto out; case MLX5_CAP_INLINE_MODE_L2: mlx5_mode = MLX5_INLINE_MODE_L2; goto out; case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT: goto query_vports; } query_vports: mlx5_query_nic_vport_min_inline(dev, esw->first_host_vport, &prev_mlx5_mode); mlx5_esw_for_each_host_func_vport(esw, i, vport, esw->esw_funcs.num_vfs) { mlx5_query_nic_vport_min_inline(dev, vport->vport, &mlx5_mode); if (prev_mlx5_mode != mlx5_mode) return -EINVAL; prev_mlx5_mode = mlx5_mode; } out: *mode = mlx5_mode; return 0; } static void esw_destroy_restore_table(struct mlx5_eswitch *esw) { struct mlx5_esw_offload *offloads = &esw->offloads; if (!mlx5_eswitch_reg_c1_loopback_supported(esw)) return; mlx5_modify_header_dealloc(esw->dev, offloads->restore_copy_hdr_id); mlx5_destroy_flow_group(offloads->restore_group); mlx5_destroy_flow_table(offloads->ft_offloads_restore); } static int esw_create_restore_table(struct mlx5_eswitch *esw) { u8 modact[MLX5_UN_SZ_BYTES(set_add_copy_action_in_auto)] = {}; int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); struct mlx5_flow_table_attr ft_attr = {}; struct mlx5_core_dev *dev = esw->dev; struct mlx5_flow_namespace *ns; struct mlx5_modify_hdr *mod_hdr; void *match_criteria, *misc; struct mlx5_flow_table *ft; struct mlx5_flow_group *g; u32 *flow_group_in; int err = 0; if (!mlx5_eswitch_reg_c1_loopback_supported(esw)) return 0; ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_OFFLOADS); if (!ns) { esw_warn(esw->dev, "Failed to get offloads flow namespace\n"); return -EOPNOTSUPP; } flow_group_in = kvzalloc(inlen, GFP_KERNEL); if (!flow_group_in) { err = -ENOMEM; goto out_free; } ft_attr.max_fte = 1 << ESW_REG_C0_USER_DATA_METADATA_BITS; ft = mlx5_create_flow_table(ns, &ft_attr); if (IS_ERR(ft)) { err = PTR_ERR(ft); esw_warn(esw->dev, "Failed to create restore table, err %d\n", err); goto out_free; } match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria); misc = MLX5_ADDR_OF(fte_match_param, match_criteria, misc_parameters_2); MLX5_SET(fte_match_set_misc2, misc, metadata_reg_c_0, ESW_REG_C0_USER_DATA_METADATA_MASK); MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0); MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, ft_attr.max_fte - 1); MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_MISC_PARAMETERS_2); g = mlx5_create_flow_group(ft, flow_group_in); if (IS_ERR(g)) { err = PTR_ERR(g); esw_warn(dev, "Failed to create restore flow group, err: %d\n", err); goto err_group; } MLX5_SET(copy_action_in, modact, action_type, MLX5_ACTION_TYPE_COPY); MLX5_SET(copy_action_in, modact, src_field, MLX5_ACTION_IN_FIELD_METADATA_REG_C_1); MLX5_SET(copy_action_in, modact, dst_field, MLX5_ACTION_IN_FIELD_METADATA_REG_B); mod_hdr = mlx5_modify_header_alloc(esw->dev, MLX5_FLOW_NAMESPACE_KERNEL, 1, modact); if (IS_ERR(mod_hdr)) { err = PTR_ERR(mod_hdr); esw_warn(dev, "Failed to create restore mod header, err: %d\n", err); goto err_mod_hdr; } esw->offloads.ft_offloads_restore = ft; esw->offloads.restore_group = g; esw->offloads.restore_copy_hdr_id = mod_hdr; kvfree(flow_group_in); return 0; err_mod_hdr: mlx5_destroy_flow_group(g); err_group: mlx5_destroy_flow_table(ft); out_free: kvfree(flow_group_in); return err; } static int esw_offloads_start(struct mlx5_eswitch *esw, struct netlink_ext_ack *extack) { int err; esw->mode = MLX5_ESWITCH_OFFLOADS; err = mlx5_eswitch_enable_locked(esw, esw->dev->priv.sriov.num_vfs); if (err) { NL_SET_ERR_MSG_MOD(extack, "Failed setting eswitch to offloads"); esw->mode = MLX5_ESWITCH_LEGACY; mlx5_rescan_drivers(esw->dev); } if (esw->offloads.inline_mode == MLX5_INLINE_MODE_NONE) { if (mlx5_eswitch_inline_mode_get(esw, &esw->offloads.inline_mode)) { esw->offloads.inline_mode = MLX5_INLINE_MODE_L2; NL_SET_ERR_MSG_MOD(extack, "Inline mode is different between vports"); } } return err; } static void mlx5_esw_offloads_rep_mark_set(struct mlx5_eswitch *esw, struct mlx5_eswitch_rep *rep, xa_mark_t mark) { bool mark_set; /* Copy the mark from vport to its rep */ mark_set = xa_get_mark(&esw->vports, rep->vport, mark); if (mark_set) xa_set_mark(&esw->offloads.vport_reps, rep->vport, mark); } static int mlx5_esw_offloads_rep_init(struct mlx5_eswitch *esw, const struct mlx5_vport *vport) { struct mlx5_eswitch_rep *rep; int rep_type; int err; rep = kzalloc(sizeof(*rep), GFP_KERNEL); if (!rep) return -ENOMEM; rep->vport = vport->vport; rep->vport_index = vport->index; for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++) atomic_set(&rep->rep_data[rep_type].state, REP_UNREGISTERED); err = xa_insert(&esw->offloads.vport_reps, rep->vport, rep, GFP_KERNEL); if (err) goto insert_err; mlx5_esw_offloads_rep_mark_set(esw, rep, MLX5_ESW_VPT_HOST_FN); mlx5_esw_offloads_rep_mark_set(esw, rep, MLX5_ESW_VPT_VF); mlx5_esw_offloads_rep_mark_set(esw, rep, MLX5_ESW_VPT_SF); return 0; insert_err: kfree(rep); return err; } static void mlx5_esw_offloads_rep_cleanup(struct mlx5_eswitch *esw, struct mlx5_eswitch_rep *rep) { xa_erase(&esw->offloads.vport_reps, rep->vport); kfree(rep); } void esw_offloads_cleanup_reps(struct mlx5_eswitch *esw) { struct mlx5_eswitch_rep *rep; unsigned long i; mlx5_esw_for_each_rep(esw, i, rep) mlx5_esw_offloads_rep_cleanup(esw, rep); xa_destroy(&esw->offloads.vport_reps); } int esw_offloads_init_reps(struct mlx5_eswitch *esw) { struct mlx5_vport *vport; unsigned long i; int err; xa_init(&esw->offloads.vport_reps); mlx5_esw_for_each_vport(esw, i, vport) { err = mlx5_esw_offloads_rep_init(esw, vport); if (err) goto err; } return 0; err: esw_offloads_cleanup_reps(esw); return err; } static void __esw_offloads_unload_rep(struct mlx5_eswitch *esw, struct mlx5_eswitch_rep *rep, u8 rep_type) { if (atomic_cmpxchg(&rep->rep_data[rep_type].state, REP_LOADED, REP_REGISTERED) == REP_LOADED) esw->offloads.rep_ops[rep_type]->unload(rep); } static void __unload_reps_sf_vport(struct mlx5_eswitch *esw, u8 rep_type) { struct mlx5_eswitch_rep *rep; unsigned long i; mlx5_esw_for_each_sf_rep(esw, i, rep) __esw_offloads_unload_rep(esw, rep, rep_type); } static void __unload_reps_all_vport(struct mlx5_eswitch *esw, u8 rep_type) { struct mlx5_eswitch_rep *rep; unsigned long i; __unload_reps_sf_vport(esw, rep_type); mlx5_esw_for_each_vf_rep(esw, i, rep) __esw_offloads_unload_rep(esw, rep, rep_type); if (mlx5_ecpf_vport_exists(esw->dev)) { rep = mlx5_eswitch_get_rep(esw, MLX5_VPORT_ECPF); __esw_offloads_unload_rep(esw, rep, rep_type); } if (mlx5_core_is_ecpf_esw_manager(esw->dev)) { rep = mlx5_eswitch_get_rep(esw, MLX5_VPORT_PF); __esw_offloads_unload_rep(esw, rep, rep_type); } rep = mlx5_eswitch_get_rep(esw, MLX5_VPORT_UPLINK); __esw_offloads_unload_rep(esw, rep, rep_type); } int mlx5_esw_offloads_rep_load(struct mlx5_eswitch *esw, u16 vport_num) { struct mlx5_eswitch_rep *rep; int rep_type; int err; rep = mlx5_eswitch_get_rep(esw, vport_num); for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++) if (atomic_cmpxchg(&rep->rep_data[rep_type].state, REP_REGISTERED, REP_LOADED) == REP_REGISTERED) { err = esw->offloads.rep_ops[rep_type]->load(esw->dev, rep); if (err) goto err_reps; } return 0; err_reps: atomic_set(&rep->rep_data[rep_type].state, REP_REGISTERED); for (--rep_type; rep_type >= 0; rep_type--) __esw_offloads_unload_rep(esw, rep, rep_type); return err; } void mlx5_esw_offloads_rep_unload(struct mlx5_eswitch *esw, u16 vport_num) { struct mlx5_eswitch_rep *rep; int rep_type; rep = mlx5_eswitch_get_rep(esw, vport_num); for (rep_type = NUM_REP_TYPES - 1; rep_type >= 0; rep_type--) __esw_offloads_unload_rep(esw, rep, rep_type); } int esw_offloads_load_rep(struct mlx5_eswitch *esw, u16 vport_num) { int err; if (esw->mode != MLX5_ESWITCH_OFFLOADS) return 0; if (vport_num != MLX5_VPORT_UPLINK) { err = mlx5_esw_offloads_devlink_port_register(esw, vport_num); if (err) return err; } err = mlx5_esw_offloads_rep_load(esw, vport_num); if (err) goto load_err; return err; load_err: if (vport_num != MLX5_VPORT_UPLINK) mlx5_esw_offloads_devlink_port_unregister(esw, vport_num); return err; } void esw_offloads_unload_rep(struct mlx5_eswitch *esw, u16 vport_num) { if (esw->mode != MLX5_ESWITCH_OFFLOADS) return; mlx5_esw_offloads_rep_unload(esw, vport_num); if (vport_num != MLX5_VPORT_UPLINK) mlx5_esw_offloads_devlink_port_unregister(esw, vport_num); } static int esw_set_slave_root_fdb(struct mlx5_core_dev *master, struct mlx5_core_dev *slave) { u32 in[MLX5_ST_SZ_DW(set_flow_table_root_in)] = {}; u32 out[MLX5_ST_SZ_DW(set_flow_table_root_out)] = {}; struct mlx5_flow_root_namespace *root; struct mlx5_flow_namespace *ns; int err; MLX5_SET(set_flow_table_root_in, in, opcode, MLX5_CMD_OP_SET_FLOW_TABLE_ROOT); MLX5_SET(set_flow_table_root_in, in, table_type, FS_FT_FDB); if (master) { ns = mlx5_get_flow_namespace(master, MLX5_FLOW_NAMESPACE_FDB); root = find_root(&ns->node); mutex_lock(&root->chain_lock); MLX5_SET(set_flow_table_root_in, in, table_eswitch_owner_vhca_id_valid, 1); MLX5_SET(set_flow_table_root_in, in, table_eswitch_owner_vhca_id, MLX5_CAP_GEN(master, vhca_id)); MLX5_SET(set_flow_table_root_in, in, table_id, root->root_ft->id); } else { ns = mlx5_get_flow_namespace(slave, MLX5_FLOW_NAMESPACE_FDB); root = find_root(&ns->node); mutex_lock(&root->chain_lock); MLX5_SET(set_flow_table_root_in, in, table_id, root->root_ft->id); } err = mlx5_cmd_exec(slave, in, sizeof(in), out, sizeof(out)); mutex_unlock(&root->chain_lock); return err; } static int __esw_set_master_egress_rule(struct mlx5_core_dev *master, struct mlx5_core_dev *slave, struct mlx5_vport *vport, struct mlx5_flow_table *acl) { struct mlx5_flow_handle *flow_rule = NULL; struct mlx5_flow_destination dest = {}; struct mlx5_flow_act flow_act = {}; struct mlx5_flow_spec *spec; int err = 0; void *misc; spec = kvzalloc(sizeof(*spec), GFP_KERNEL); if (!spec) return -ENOMEM; spec->match_criteria_enable = MLX5_MATCH_MISC_PARAMETERS; misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters); MLX5_SET(fte_match_set_misc, misc, source_port, MLX5_VPORT_UPLINK); MLX5_SET(fte_match_set_misc, misc, source_eswitch_owner_vhca_id, MLX5_CAP_GEN(slave, vhca_id)); misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters); MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port); MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_eswitch_owner_vhca_id); flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT; dest.vport.num = slave->priv.eswitch->manager_vport; dest.vport.vhca_id = MLX5_CAP_GEN(slave, vhca_id); dest.vport.flags |= MLX5_FLOW_DEST_VPORT_VHCA_ID; flow_rule = mlx5_add_flow_rules(acl, spec, &flow_act, &dest, 1); if (IS_ERR(flow_rule)) err = PTR_ERR(flow_rule); else vport->egress.offloads.bounce_rule = flow_rule; kvfree(spec); return err; } static int esw_set_master_egress_rule(struct mlx5_core_dev *master, struct mlx5_core_dev *slave) { int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); struct mlx5_eswitch *esw = master->priv.eswitch; struct mlx5_flow_table_attr ft_attr = { .max_fte = 1, .prio = 0, .level = 0, .flags = MLX5_FLOW_TABLE_OTHER_VPORT, }; struct mlx5_flow_namespace *egress_ns; struct mlx5_flow_table *acl; struct mlx5_flow_group *g; struct mlx5_vport *vport; void *match_criteria; u32 *flow_group_in; int err; vport = mlx5_eswitch_get_vport(esw, esw->manager_vport); if (IS_ERR(vport)) return PTR_ERR(vport); egress_ns = mlx5_get_flow_vport_acl_namespace(master, MLX5_FLOW_NAMESPACE_ESW_EGRESS, vport->index); if (!egress_ns) return -EINVAL; if (vport->egress.acl) return -EINVAL; flow_group_in = kvzalloc(inlen, GFP_KERNEL); if (!flow_group_in) return -ENOMEM; acl = mlx5_create_vport_flow_table(egress_ns, &ft_attr, vport->vport); if (IS_ERR(acl)) { err = PTR_ERR(acl); goto out; } match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria); MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_port); MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_eswitch_owner_vhca_id); MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_MISC_PARAMETERS); MLX5_SET(create_flow_group_in, flow_group_in, source_eswitch_owner_vhca_id_valid, 1); MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0); MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 0); g = mlx5_create_flow_group(acl, flow_group_in); if (IS_ERR(g)) { err = PTR_ERR(g); goto err_group; } err = __esw_set_master_egress_rule(master, slave, vport, acl); if (err) goto err_rule; vport->egress.acl = acl; vport->egress.offloads.bounce_grp = g; kvfree(flow_group_in); return 0; err_rule: mlx5_destroy_flow_group(g); err_group: mlx5_destroy_flow_table(acl); out: kvfree(flow_group_in); return err; } static void esw_unset_master_egress_rule(struct mlx5_core_dev *dev) { struct mlx5_vport *vport; vport = mlx5_eswitch_get_vport(dev->priv.eswitch, dev->priv.eswitch->manager_vport); esw_acl_egress_ofld_cleanup(vport); } int mlx5_eswitch_offloads_config_single_fdb(struct mlx5_eswitch *master_esw, struct mlx5_eswitch *slave_esw) { int err; err = esw_set_slave_root_fdb(master_esw->dev, slave_esw->dev); if (err) return err; err = esw_set_master_egress_rule(master_esw->dev, slave_esw->dev); if (err) goto err_acl; return err; err_acl: esw_set_slave_root_fdb(NULL, slave_esw->dev); return err; } void mlx5_eswitch_offloads_destroy_single_fdb(struct mlx5_eswitch *master_esw, struct mlx5_eswitch *slave_esw) { esw_unset_master_egress_rule(master_esw->dev); esw_set_slave_root_fdb(NULL, slave_esw->dev); } #define ESW_OFFLOADS_DEVCOM_PAIR (0) #define ESW_OFFLOADS_DEVCOM_UNPAIR (1) static void mlx5_esw_offloads_rep_event_unpair(struct mlx5_eswitch *esw) { const struct mlx5_eswitch_rep_ops *ops; struct mlx5_eswitch_rep *rep; unsigned long i; u8 rep_type; mlx5_esw_for_each_rep(esw, i, rep) { rep_type = NUM_REP_TYPES; while (rep_type--) { ops = esw->offloads.rep_ops[rep_type]; if (atomic_read(&rep->rep_data[rep_type].state) == REP_LOADED && ops->event) ops->event(esw, rep, MLX5_SWITCHDEV_EVENT_UNPAIR, NULL); } } } static void mlx5_esw_offloads_unpair(struct mlx5_eswitch *esw) { #if IS_ENABLED(CONFIG_MLX5_CLS_ACT) mlx5e_tc_clean_fdb_peer_flows(esw); #endif mlx5_esw_offloads_rep_event_unpair(esw); esw_del_fdb_peer_miss_rules(esw); } static int mlx5_esw_offloads_pair(struct mlx5_eswitch *esw, struct mlx5_eswitch *peer_esw) { const struct mlx5_eswitch_rep_ops *ops; struct mlx5_eswitch_rep *rep; unsigned long i; u8 rep_type; int err; err = esw_add_fdb_peer_miss_rules(esw, peer_esw->dev); if (err) return err; mlx5_esw_for_each_rep(esw, i, rep) { for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++) { ops = esw->offloads.rep_ops[rep_type]; if (atomic_read(&rep->rep_data[rep_type].state) == REP_LOADED && ops->event) { err = ops->event(esw, rep, MLX5_SWITCHDEV_EVENT_PAIR, peer_esw); if (err) goto err_out; } } } return 0; err_out: mlx5_esw_offloads_unpair(esw); return err; } static int mlx5_esw_offloads_set_ns_peer(struct mlx5_eswitch *esw, struct mlx5_eswitch *peer_esw, bool pair) { struct mlx5_flow_root_namespace *peer_ns; struct mlx5_flow_root_namespace *ns; int err; peer_ns = peer_esw->dev->priv.steering->fdb_root_ns; ns = esw->dev->priv.steering->fdb_root_ns; if (pair) { err = mlx5_flow_namespace_set_peer(ns, peer_ns); if (err) return err; err = mlx5_flow_namespace_set_peer(peer_ns, ns); if (err) { mlx5_flow_namespace_set_peer(ns, NULL); return err; } } else { mlx5_flow_namespace_set_peer(ns, NULL); mlx5_flow_namespace_set_peer(peer_ns, NULL); } return 0; } static int mlx5_esw_offloads_devcom_event(int event, void *my_data, void *event_data) { struct mlx5_eswitch *esw = my_data; struct mlx5_devcom *devcom = esw->dev->priv.devcom; struct mlx5_eswitch *peer_esw = event_data; int err; switch (event) { case ESW_OFFLOADS_DEVCOM_PAIR: if (mlx5_eswitch_vport_match_metadata_enabled(esw) != mlx5_eswitch_vport_match_metadata_enabled(peer_esw)) break; err = mlx5_esw_offloads_set_ns_peer(esw, peer_esw, true); if (err) goto err_out; err = mlx5_esw_offloads_pair(esw, peer_esw); if (err) goto err_peer; err = mlx5_esw_offloads_pair(peer_esw, esw); if (err) goto err_pair; mlx5_devcom_set_paired(devcom, MLX5_DEVCOM_ESW_OFFLOADS, true); break; case ESW_OFFLOADS_DEVCOM_UNPAIR: if (!mlx5_devcom_is_paired(devcom, MLX5_DEVCOM_ESW_OFFLOADS)) break; mlx5_devcom_set_paired(devcom, MLX5_DEVCOM_ESW_OFFLOADS, false); mlx5_esw_offloads_unpair(peer_esw); mlx5_esw_offloads_unpair(esw); mlx5_esw_offloads_set_ns_peer(esw, peer_esw, false); break; } return 0; err_pair: mlx5_esw_offloads_unpair(esw); err_peer: mlx5_esw_offloads_set_ns_peer(esw, peer_esw, false); err_out: mlx5_core_err(esw->dev, "esw offloads devcom event failure, event %u err %d", event, err); return err; } static void esw_offloads_devcom_init(struct mlx5_eswitch *esw) { struct mlx5_devcom *devcom = esw->dev->priv.devcom; INIT_LIST_HEAD(&esw->offloads.peer_flows); mutex_init(&esw->offloads.peer_mutex); if (!MLX5_CAP_ESW(esw->dev, merged_eswitch)) return; if (!mlx5_is_lag_supported(esw->dev)) return; mlx5_devcom_register_component(devcom, MLX5_DEVCOM_ESW_OFFLOADS, mlx5_esw_offloads_devcom_event, esw); mlx5_devcom_send_event(devcom, MLX5_DEVCOM_ESW_OFFLOADS, ESW_OFFLOADS_DEVCOM_PAIR, esw); } static void esw_offloads_devcom_cleanup(struct mlx5_eswitch *esw) { struct mlx5_devcom *devcom = esw->dev->priv.devcom; if (!MLX5_CAP_ESW(esw->dev, merged_eswitch)) return; if (!mlx5_is_lag_supported(esw->dev)) return; mlx5_devcom_send_event(devcom, MLX5_DEVCOM_ESW_OFFLOADS, ESW_OFFLOADS_DEVCOM_UNPAIR, esw); mlx5_devcom_unregister_component(devcom, MLX5_DEVCOM_ESW_OFFLOADS); } bool mlx5_esw_vport_match_metadata_supported(const struct mlx5_eswitch *esw) { if (!MLX5_CAP_ESW(esw->dev, esw_uplink_ingress_acl)) return false; if (!(MLX5_CAP_ESW_FLOWTABLE(esw->dev, fdb_to_vport_reg_c_id) & MLX5_FDB_TO_VPORT_REG_C_0)) return false; if (!MLX5_CAP_ESW_FLOWTABLE(esw->dev, flow_source)) return false; return true; } #define MLX5_ESW_METADATA_RSVD_UPLINK 1 /* Share the same metadata for uplink's. This is fine because: * (a) In shared FDB mode (LAG) both uplink's are treated the * same and tagged with the same metadata. * (b) In non shared FDB mode, packets from physical port0 * cannot hit eswitch of PF1 and vice versa. */ static u32 mlx5_esw_match_metadata_reserved(struct mlx5_eswitch *esw) { return MLX5_ESW_METADATA_RSVD_UPLINK; } u32 mlx5_esw_match_metadata_alloc(struct mlx5_eswitch *esw) { u32 vport_end_ida = (1 << ESW_VPORT_BITS) - 1; /* Reserve 0xf for internal port offload */ u32 max_pf_num = (1 << ESW_PFNUM_BITS) - 2; u32 pf_num; int id; /* Only 4 bits of pf_num */ pf_num = mlx5_get_dev_index(esw->dev); if (pf_num > max_pf_num) return 0; /* Metadata is 4 bits of PFNUM and 12 bits of unique id */ /* Use only non-zero vport_id (2-4095) for all PF's */ id = ida_alloc_range(&esw->offloads.vport_metadata_ida, MLX5_ESW_METADATA_RSVD_UPLINK + 1, vport_end_ida, GFP_KERNEL); if (id < 0) return 0; id = (pf_num << ESW_VPORT_BITS) | id; return id; } void mlx5_esw_match_metadata_free(struct mlx5_eswitch *esw, u32 metadata) { u32 vport_bit_mask = (1 << ESW_VPORT_BITS) - 1; /* Metadata contains only 12 bits of actual ida id */ ida_free(&esw->offloads.vport_metadata_ida, metadata & vport_bit_mask); } static int esw_offloads_vport_metadata_setup(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { if (vport->vport == MLX5_VPORT_UPLINK) vport->default_metadata = mlx5_esw_match_metadata_reserved(esw); else vport->default_metadata = mlx5_esw_match_metadata_alloc(esw); vport->metadata = vport->default_metadata; return vport->metadata ? 0 : -ENOSPC; } static void esw_offloads_vport_metadata_cleanup(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { if (!vport->default_metadata) return; if (vport->vport == MLX5_VPORT_UPLINK) return; WARN_ON(vport->metadata != vport->default_metadata); mlx5_esw_match_metadata_free(esw, vport->default_metadata); } static void esw_offloads_metadata_uninit(struct mlx5_eswitch *esw) { struct mlx5_vport *vport; unsigned long i; if (!mlx5_eswitch_vport_match_metadata_enabled(esw)) return; mlx5_esw_for_each_vport(esw, i, vport) esw_offloads_vport_metadata_cleanup(esw, vport); } static int esw_offloads_metadata_init(struct mlx5_eswitch *esw) { struct mlx5_vport *vport; unsigned long i; int err; if (!mlx5_eswitch_vport_match_metadata_enabled(esw)) return 0; mlx5_esw_for_each_vport(esw, i, vport) { err = esw_offloads_vport_metadata_setup(esw, vport); if (err) goto metadata_err; } return 0; metadata_err: esw_offloads_metadata_uninit(esw); return err; } int mlx5_esw_offloads_vport_metadata_set(struct mlx5_eswitch *esw, bool enable) { int err = 0; down_write(&esw->mode_lock); if (mlx5_esw_is_fdb_created(esw)) { err = -EBUSY; goto done; } if (!mlx5_esw_vport_match_metadata_supported(esw)) { err = -EOPNOTSUPP; goto done; } if (enable) esw->flags |= MLX5_ESWITCH_VPORT_MATCH_METADATA; else esw->flags &= ~MLX5_ESWITCH_VPORT_MATCH_METADATA; done: up_write(&esw->mode_lock); return err; } int esw_vport_create_offloads_acl_tables(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { int err; err = esw_acl_ingress_ofld_setup(esw, vport); if (err) return err; err = esw_acl_egress_ofld_setup(esw, vport); if (err) goto egress_err; return 0; egress_err: esw_acl_ingress_ofld_cleanup(esw, vport); return err; } void esw_vport_destroy_offloads_acl_tables(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { esw_acl_egress_ofld_cleanup(vport); esw_acl_ingress_ofld_cleanup(esw, vport); } static int esw_create_uplink_offloads_acl_tables(struct mlx5_eswitch *esw) { struct mlx5_vport *vport; vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_UPLINK); if (IS_ERR(vport)) return PTR_ERR(vport); return esw_vport_create_offloads_acl_tables(esw, vport); } static void esw_destroy_uplink_offloads_acl_tables(struct mlx5_eswitch *esw) { struct mlx5_vport *vport; vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_UPLINK); if (IS_ERR(vport)) return; esw_vport_destroy_offloads_acl_tables(esw, vport); } int mlx5_eswitch_reload_reps(struct mlx5_eswitch *esw) { struct mlx5_eswitch_rep *rep; unsigned long i; int ret; if (!esw || esw->mode != MLX5_ESWITCH_OFFLOADS) return 0; rep = mlx5_eswitch_get_rep(esw, MLX5_VPORT_UPLINK); if (atomic_read(&rep->rep_data[REP_ETH].state) != REP_LOADED) return 0; ret = mlx5_esw_offloads_rep_load(esw, MLX5_VPORT_UPLINK); if (ret) return ret; mlx5_esw_for_each_rep(esw, i, rep) { if (atomic_read(&rep->rep_data[REP_ETH].state) == REP_LOADED) mlx5_esw_offloads_rep_load(esw, rep->vport); } return 0; } static int esw_offloads_steering_init(struct mlx5_eswitch *esw) { struct mlx5_esw_indir_table *indir; int err; memset(&esw->fdb_table.offloads, 0, sizeof(struct offloads_fdb)); mutex_init(&esw->fdb_table.offloads.vports.lock); hash_init(esw->fdb_table.offloads.vports.table); atomic64_set(&esw->user_count, 0); indir = mlx5_esw_indir_table_init(); if (IS_ERR(indir)) { err = PTR_ERR(indir); goto create_indir_err; } esw->fdb_table.offloads.indir = indir; err = esw_create_uplink_offloads_acl_tables(esw); if (err) goto create_acl_err; err = esw_create_offloads_table(esw); if (err) goto create_offloads_err; err = esw_create_restore_table(esw); if (err) goto create_restore_err; err = esw_create_offloads_fdb_tables(esw); if (err) goto create_fdb_err; err = esw_create_vport_rx_group(esw); if (err) goto create_fg_err; err = esw_create_vport_rx_drop_group(esw); if (err) goto create_rx_drop_fg_err; err = esw_create_vport_rx_drop_rule(esw); if (err) goto create_rx_drop_rule_err; return 0; create_rx_drop_rule_err: esw_destroy_vport_rx_drop_group(esw); create_rx_drop_fg_err: esw_destroy_vport_rx_group(esw); create_fg_err: esw_destroy_offloads_fdb_tables(esw); create_fdb_err: esw_destroy_restore_table(esw); create_restore_err: esw_destroy_offloads_table(esw); create_offloads_err: esw_destroy_uplink_offloads_acl_tables(esw); create_acl_err: mlx5_esw_indir_table_destroy(esw->fdb_table.offloads.indir); create_indir_err: mutex_destroy(&esw->fdb_table.offloads.vports.lock); return err; } static void esw_offloads_steering_cleanup(struct mlx5_eswitch *esw) { esw_destroy_vport_rx_drop_rule(esw); esw_destroy_vport_rx_drop_group(esw); esw_destroy_vport_rx_group(esw); esw_destroy_offloads_fdb_tables(esw); esw_destroy_restore_table(esw); esw_destroy_offloads_table(esw); esw_destroy_uplink_offloads_acl_tables(esw); mlx5_esw_indir_table_destroy(esw->fdb_table.offloads.indir); mutex_destroy(&esw->fdb_table.offloads.vports.lock); } static void esw_vfs_changed_event_handler(struct mlx5_eswitch *esw, const u32 *out) { struct devlink *devlink; bool host_pf_disabled; u16 new_num_vfs; new_num_vfs = MLX5_GET(query_esw_functions_out, out, host_params_context.host_num_of_vfs); host_pf_disabled = MLX5_GET(query_esw_functions_out, out, host_params_context.host_pf_disabled); if (new_num_vfs == esw->esw_funcs.num_vfs || host_pf_disabled) return; devlink = priv_to_devlink(esw->dev); devl_lock(devlink); /* Number of VFs can only change from "0 to x" or "x to 0". */ if (esw->esw_funcs.num_vfs > 0) { mlx5_eswitch_unload_vf_vports(esw, esw->esw_funcs.num_vfs); } else { int err; err = mlx5_eswitch_load_vf_vports(esw, new_num_vfs, MLX5_VPORT_UC_ADDR_CHANGE); if (err) { devl_unlock(devlink); return; } } esw->esw_funcs.num_vfs = new_num_vfs; devl_unlock(devlink); } static void esw_functions_changed_event_handler(struct work_struct *work) { struct mlx5_host_work *host_work; struct mlx5_eswitch *esw; const u32 *out; host_work = container_of(work, struct mlx5_host_work, work); esw = host_work->esw; out = mlx5_esw_query_functions(esw->dev); if (IS_ERR(out)) goto out; esw_vfs_changed_event_handler(esw, out); kvfree(out); out: kfree(host_work); } int mlx5_esw_funcs_changed_handler(struct notifier_block *nb, unsigned long type, void *data) { struct mlx5_esw_functions *esw_funcs; struct mlx5_host_work *host_work; struct mlx5_eswitch *esw; host_work = kzalloc(sizeof(*host_work), GFP_ATOMIC); if (!host_work) return NOTIFY_DONE; esw_funcs = mlx5_nb_cof(nb, struct mlx5_esw_functions, nb); esw = container_of(esw_funcs, struct mlx5_eswitch, esw_funcs); host_work->esw = esw; INIT_WORK(&host_work->work, esw_functions_changed_event_handler); queue_work(esw->work_queue, &host_work->work); return NOTIFY_OK; } static int mlx5_esw_host_number_init(struct mlx5_eswitch *esw) { const u32 *query_host_out; if (!mlx5_core_is_ecpf_esw_manager(esw->dev)) return 0; query_host_out = mlx5_esw_query_functions(esw->dev); if (IS_ERR(query_host_out)) return PTR_ERR(query_host_out); /* Mark non local controller with non zero controller number. */ esw->offloads.host_number = MLX5_GET(query_esw_functions_out, query_host_out, host_params_context.host_number); kvfree(query_host_out); return 0; } bool mlx5_esw_offloads_controller_valid(const struct mlx5_eswitch *esw, u32 controller) { /* Local controller is always valid */ if (controller == 0) return true; if (!mlx5_core_is_ecpf_esw_manager(esw->dev)) return false; /* External host number starts with zero in device */ return (controller == esw->offloads.host_number + 1); } int esw_offloads_enable(struct mlx5_eswitch *esw) { struct mapping_ctx *reg_c0_obj_pool; struct mlx5_vport *vport; unsigned long i; u64 mapping_id; int err; mutex_init(&esw->offloads.termtbl_mutex); mlx5_rdma_enable_roce(esw->dev); err = mlx5_esw_host_number_init(esw); if (err) goto err_metadata; err = esw_offloads_metadata_init(esw); if (err) goto err_metadata; err = esw_set_passing_vport_metadata(esw, true); if (err) goto err_vport_metadata; mapping_id = mlx5_query_nic_system_image_guid(esw->dev); reg_c0_obj_pool = mapping_create_for_id(mapping_id, MAPPING_TYPE_CHAIN, sizeof(struct mlx5_mapped_obj), ESW_REG_C0_USER_DATA_METADATA_MASK, true); if (IS_ERR(reg_c0_obj_pool)) { err = PTR_ERR(reg_c0_obj_pool); goto err_pool; } esw->offloads.reg_c0_obj_pool = reg_c0_obj_pool; err = esw_offloads_steering_init(esw); if (err) goto err_steering_init; /* Representor will control the vport link state */ mlx5_esw_for_each_vf_vport(esw, i, vport, esw->esw_funcs.num_vfs) vport->info.link_state = MLX5_VPORT_ADMIN_STATE_DOWN; /* Uplink vport rep must load first. */ err = esw_offloads_load_rep(esw, MLX5_VPORT_UPLINK); if (err) goto err_uplink; err = mlx5_eswitch_enable_pf_vf_vports(esw, MLX5_VPORT_UC_ADDR_CHANGE); if (err) goto err_vports; esw_offloads_devcom_init(esw); return 0; err_vports: esw_offloads_unload_rep(esw, MLX5_VPORT_UPLINK); err_uplink: esw_offloads_steering_cleanup(esw); err_steering_init: mapping_destroy(reg_c0_obj_pool); err_pool: esw_set_passing_vport_metadata(esw, false); err_vport_metadata: esw_offloads_metadata_uninit(esw); err_metadata: mlx5_rdma_disable_roce(esw->dev); mutex_destroy(&esw->offloads.termtbl_mutex); return err; } static int esw_offloads_stop(struct mlx5_eswitch *esw, struct netlink_ext_ack *extack) { int err; esw->mode = MLX5_ESWITCH_LEGACY; /* If changing from switchdev to legacy mode without sriov enabled, * no need to create legacy fdb. */ if (!mlx5_sriov_is_enabled(esw->dev)) return 0; err = mlx5_eswitch_enable_locked(esw, MLX5_ESWITCH_IGNORE_NUM_VFS); if (err) NL_SET_ERR_MSG_MOD(extack, "Failed setting eswitch to legacy"); return err; } void esw_offloads_disable(struct mlx5_eswitch *esw) { esw_offloads_devcom_cleanup(esw); mlx5_eswitch_disable_pf_vf_vports(esw); esw_offloads_unload_rep(esw, MLX5_VPORT_UPLINK); esw_set_passing_vport_metadata(esw, false); esw_offloads_steering_cleanup(esw); mapping_destroy(esw->offloads.reg_c0_obj_pool); esw_offloads_metadata_uninit(esw); mlx5_rdma_disable_roce(esw->dev); mutex_destroy(&esw->offloads.termtbl_mutex); } static int esw_mode_from_devlink(u16 mode, u16 *mlx5_mode) { switch (mode) { case DEVLINK_ESWITCH_MODE_LEGACY: *mlx5_mode = MLX5_ESWITCH_LEGACY; break; case DEVLINK_ESWITCH_MODE_SWITCHDEV: *mlx5_mode = MLX5_ESWITCH_OFFLOADS; break; default: return -EINVAL; } return 0; } static int esw_mode_to_devlink(u16 mlx5_mode, u16 *mode) { switch (mlx5_mode) { case MLX5_ESWITCH_LEGACY: *mode = DEVLINK_ESWITCH_MODE_LEGACY; break; case MLX5_ESWITCH_OFFLOADS: *mode = DEVLINK_ESWITCH_MODE_SWITCHDEV; break; default: return -EINVAL; } return 0; } static int esw_inline_mode_from_devlink(u8 mode, u8 *mlx5_mode) { switch (mode) { case DEVLINK_ESWITCH_INLINE_MODE_NONE: *mlx5_mode = MLX5_INLINE_MODE_NONE; break; case DEVLINK_ESWITCH_INLINE_MODE_LINK: *mlx5_mode = MLX5_INLINE_MODE_L2; break; case DEVLINK_ESWITCH_INLINE_MODE_NETWORK: *mlx5_mode = MLX5_INLINE_MODE_IP; break; case DEVLINK_ESWITCH_INLINE_MODE_TRANSPORT: *mlx5_mode = MLX5_INLINE_MODE_TCP_UDP; break; default: return -EINVAL; } return 0; } static int esw_inline_mode_to_devlink(u8 mlx5_mode, u8 *mode) { switch (mlx5_mode) { case MLX5_INLINE_MODE_NONE: *mode = DEVLINK_ESWITCH_INLINE_MODE_NONE; break; case MLX5_INLINE_MODE_L2: *mode = DEVLINK_ESWITCH_INLINE_MODE_LINK; break; case MLX5_INLINE_MODE_IP: *mode = DEVLINK_ESWITCH_INLINE_MODE_NETWORK; break; case MLX5_INLINE_MODE_TCP_UDP: *mode = DEVLINK_ESWITCH_INLINE_MODE_TRANSPORT; break; default: return -EINVAL; } return 0; } int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode, struct netlink_ext_ack *extack) { u16 cur_mlx5_mode, mlx5_mode = 0; struct mlx5_eswitch *esw; int err = 0; esw = mlx5_devlink_eswitch_get(devlink); if (IS_ERR(esw)) return PTR_ERR(esw); if (esw_mode_from_devlink(mode, &mlx5_mode)) return -EINVAL; mlx5_lag_disable_change(esw->dev); err = mlx5_esw_try_lock(esw); if (err < 0) { NL_SET_ERR_MSG_MOD(extack, "Can't change mode, E-Switch is busy"); goto enable_lag; } cur_mlx5_mode = err; err = 0; if (cur_mlx5_mode == mlx5_mode) goto unlock; mlx5_eswitch_disable_locked(esw); if (mode == DEVLINK_ESWITCH_MODE_SWITCHDEV) { if (mlx5_devlink_trap_get_num_active(esw->dev)) { NL_SET_ERR_MSG_MOD(extack, "Can't change mode while devlink traps are active"); err = -EOPNOTSUPP; goto unlock; } err = esw_offloads_start(esw, extack); } else if (mode == DEVLINK_ESWITCH_MODE_LEGACY) { err = esw_offloads_stop(esw, extack); mlx5_rescan_drivers(esw->dev); } else { err = -EINVAL; } unlock: mlx5_esw_unlock(esw); enable_lag: mlx5_lag_enable_change(esw->dev); return err; } int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode) { struct mlx5_eswitch *esw; int err; esw = mlx5_devlink_eswitch_get(devlink); if (IS_ERR(esw)) return PTR_ERR(esw); down_write(&esw->mode_lock); err = esw_mode_to_devlink(esw->mode, mode); up_write(&esw->mode_lock); return err; } static int mlx5_esw_vports_inline_set(struct mlx5_eswitch *esw, u8 mlx5_mode, struct netlink_ext_ack *extack) { struct mlx5_core_dev *dev = esw->dev; struct mlx5_vport *vport; u16 err_vport_num = 0; unsigned long i; int err = 0; mlx5_esw_for_each_host_func_vport(esw, i, vport, esw->esw_funcs.num_vfs) { err = mlx5_modify_nic_vport_min_inline(dev, vport->vport, mlx5_mode); if (err) { err_vport_num = vport->vport; NL_SET_ERR_MSG_MOD(extack, "Failed to set min inline on vport"); goto revert_inline_mode; } } return 0; revert_inline_mode: mlx5_esw_for_each_host_func_vport(esw, i, vport, esw->esw_funcs.num_vfs) { if (vport->vport == err_vport_num) break; mlx5_modify_nic_vport_min_inline(dev, vport->vport, esw->offloads.inline_mode); } return err; } int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode, struct netlink_ext_ack *extack) { struct mlx5_core_dev *dev = devlink_priv(devlink); struct mlx5_eswitch *esw; u8 mlx5_mode; int err; esw = mlx5_devlink_eswitch_get(devlink); if (IS_ERR(esw)) return PTR_ERR(esw); down_write(&esw->mode_lock); switch (MLX5_CAP_ETH(dev, wqe_inline_mode)) { case MLX5_CAP_INLINE_MODE_NOT_REQUIRED: if (mode == DEVLINK_ESWITCH_INLINE_MODE_NONE) { err = 0; goto out; } fallthrough; case MLX5_CAP_INLINE_MODE_L2: NL_SET_ERR_MSG_MOD(extack, "Inline mode can't be set"); err = -EOPNOTSUPP; goto out; case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT: break; } if (atomic64_read(&esw->offloads.num_flows) > 0) { NL_SET_ERR_MSG_MOD(extack, "Can't set inline mode when flows are configured"); err = -EOPNOTSUPP; goto out; } err = esw_inline_mode_from_devlink(mode, &mlx5_mode); if (err) goto out; err = mlx5_esw_vports_inline_set(esw, mlx5_mode, extack); if (err) goto out; esw->offloads.inline_mode = mlx5_mode; up_write(&esw->mode_lock); return 0; out: up_write(&esw->mode_lock); return err; } int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode) { struct mlx5_eswitch *esw; int err; esw = mlx5_devlink_eswitch_get(devlink); if (IS_ERR(esw)) return PTR_ERR(esw); down_write(&esw->mode_lock); err = esw_inline_mode_to_devlink(esw->offloads.inline_mode, mode); up_write(&esw->mode_lock); return err; } int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink, enum devlink_eswitch_encap_mode encap, struct netlink_ext_ack *extack) { struct mlx5_core_dev *dev = devlink_priv(devlink); struct mlx5_eswitch *esw; int err = 0; esw = mlx5_devlink_eswitch_get(devlink); if (IS_ERR(esw)) return PTR_ERR(esw); down_write(&esw->mode_lock); if (encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE && (!MLX5_CAP_ESW_FLOWTABLE_FDB(dev, reformat) || !MLX5_CAP_ESW_FLOWTABLE_FDB(dev, decap))) { err = -EOPNOTSUPP; goto unlock; } if (encap && encap != DEVLINK_ESWITCH_ENCAP_MODE_BASIC) { err = -EOPNOTSUPP; goto unlock; } if (esw->mode == MLX5_ESWITCH_LEGACY) { esw->offloads.encap = encap; goto unlock; } if (esw->offloads.encap == encap) goto unlock; if (atomic64_read(&esw->offloads.num_flows) > 0) { NL_SET_ERR_MSG_MOD(extack, "Can't set encapsulation when flows are configured"); err = -EOPNOTSUPP; goto unlock; } esw_destroy_offloads_fdb_tables(esw); esw->offloads.encap = encap; err = esw_create_offloads_fdb_tables(esw); if (err) { NL_SET_ERR_MSG_MOD(extack, "Failed re-creating fast FDB table"); esw->offloads.encap = !encap; (void)esw_create_offloads_fdb_tables(esw); } unlock: up_write(&esw->mode_lock); return err; } int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink, enum devlink_eswitch_encap_mode *encap) { struct mlx5_eswitch *esw; esw = mlx5_devlink_eswitch_get(devlink); if (IS_ERR(esw)) return PTR_ERR(esw); down_write(&esw->mode_lock); *encap = esw->offloads.encap; up_write(&esw->mode_lock); return 0; } static bool mlx5_eswitch_vport_has_rep(const struct mlx5_eswitch *esw, u16 vport_num) { /* Currently, only ECPF based device has representor for host PF. */ if (vport_num == MLX5_VPORT_PF && !mlx5_core_is_ecpf_esw_manager(esw->dev)) return false; if (vport_num == MLX5_VPORT_ECPF && !mlx5_ecpf_vport_exists(esw->dev)) return false; return true; } void mlx5_eswitch_register_vport_reps(struct mlx5_eswitch *esw, const struct mlx5_eswitch_rep_ops *ops, u8 rep_type) { struct mlx5_eswitch_rep_data *rep_data; struct mlx5_eswitch_rep *rep; unsigned long i; esw->offloads.rep_ops[rep_type] = ops; mlx5_esw_for_each_rep(esw, i, rep) { if (likely(mlx5_eswitch_vport_has_rep(esw, rep->vport))) { rep->esw = esw; rep_data = &rep->rep_data[rep_type]; atomic_set(&rep_data->state, REP_REGISTERED); } } } EXPORT_SYMBOL(mlx5_eswitch_register_vport_reps); void mlx5_eswitch_unregister_vport_reps(struct mlx5_eswitch *esw, u8 rep_type) { struct mlx5_eswitch_rep *rep; unsigned long i; if (esw->mode == MLX5_ESWITCH_OFFLOADS) __unload_reps_all_vport(esw, rep_type); mlx5_esw_for_each_rep(esw, i, rep) atomic_set(&rep->rep_data[rep_type].state, REP_UNREGISTERED); } EXPORT_SYMBOL(mlx5_eswitch_unregister_vport_reps); void *mlx5_eswitch_get_uplink_priv(struct mlx5_eswitch *esw, u8 rep_type) { struct mlx5_eswitch_rep *rep; rep = mlx5_eswitch_get_rep(esw, MLX5_VPORT_UPLINK); return rep->rep_data[rep_type].priv; } void *mlx5_eswitch_get_proto_dev(struct mlx5_eswitch *esw, u16 vport, u8 rep_type) { struct mlx5_eswitch_rep *rep; rep = mlx5_eswitch_get_rep(esw, vport); if (atomic_read(&rep->rep_data[rep_type].state) == REP_LOADED && esw->offloads.rep_ops[rep_type]->get_proto_dev) return esw->offloads.rep_ops[rep_type]->get_proto_dev(rep); return NULL; } EXPORT_SYMBOL(mlx5_eswitch_get_proto_dev); void *mlx5_eswitch_uplink_get_proto_dev(struct mlx5_eswitch *esw, u8 rep_type) { return mlx5_eswitch_get_proto_dev(esw, MLX5_VPORT_UPLINK, rep_type); } EXPORT_SYMBOL(mlx5_eswitch_uplink_get_proto_dev); struct mlx5_eswitch_rep *mlx5_eswitch_vport_rep(struct mlx5_eswitch *esw, u16 vport) { return mlx5_eswitch_get_rep(esw, vport); } EXPORT_SYMBOL(mlx5_eswitch_vport_rep); bool mlx5_eswitch_reg_c1_loopback_enabled(const struct mlx5_eswitch *esw) { return !!(esw->flags & MLX5_ESWITCH_REG_C1_LOOPBACK_ENABLED); } EXPORT_SYMBOL(mlx5_eswitch_reg_c1_loopback_enabled); bool mlx5_eswitch_vport_match_metadata_enabled(const struct mlx5_eswitch *esw) { return !!(esw->flags & MLX5_ESWITCH_VPORT_MATCH_METADATA); } EXPORT_SYMBOL(mlx5_eswitch_vport_match_metadata_enabled); u32 mlx5_eswitch_get_vport_metadata_for_match(struct mlx5_eswitch *esw, u16 vport_num) { struct mlx5_vport *vport = mlx5_eswitch_get_vport(esw, vport_num); if (WARN_ON_ONCE(IS_ERR(vport))) return 0; return vport->metadata << (32 - ESW_SOURCE_PORT_METADATA_BITS); } EXPORT_SYMBOL(mlx5_eswitch_get_vport_metadata_for_match); int mlx5_esw_offloads_sf_vport_enable(struct mlx5_eswitch *esw, struct devlink_port *dl_port, u16 vport_num, u32 controller, u32 sfnum) { int err; err = mlx5_esw_vport_enable(esw, vport_num, MLX5_VPORT_UC_ADDR_CHANGE); if (err) return err; err = mlx5_esw_devlink_sf_port_register(esw, dl_port, vport_num, controller, sfnum); if (err) goto devlink_err; mlx5_esw_vport_debugfs_create(esw, vport_num, true, sfnum); err = mlx5_esw_offloads_rep_load(esw, vport_num); if (err) goto rep_err; return 0; rep_err: mlx5_esw_vport_debugfs_destroy(esw, vport_num); mlx5_esw_devlink_sf_port_unregister(esw, vport_num); devlink_err: mlx5_esw_vport_disable(esw, vport_num); return err; } void mlx5_esw_offloads_sf_vport_disable(struct mlx5_eswitch *esw, u16 vport_num) { mlx5_esw_offloads_rep_unload(esw, vport_num); mlx5_esw_vport_debugfs_destroy(esw, vport_num); mlx5_esw_devlink_sf_port_unregister(esw, vport_num); mlx5_esw_vport_disable(esw, vport_num); } static int mlx5_esw_query_vport_vhca_id(struct mlx5_eswitch *esw, u16 vport_num, u16 *vhca_id) { int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out); void *query_ctx; void *hca_caps; int err; *vhca_id = 0; if (mlx5_esw_is_manager_vport(esw, vport_num) || !MLX5_CAP_GEN(esw->dev, vhca_resource_manager)) return -EPERM; query_ctx = kzalloc(query_out_sz, GFP_KERNEL); if (!query_ctx) return -ENOMEM; err = mlx5_vport_get_other_func_cap(esw->dev, vport_num, query_ctx); if (err) goto out_free; hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability); *vhca_id = MLX5_GET(cmd_hca_cap, hca_caps, vhca_id); out_free: kfree(query_ctx); return err; } int mlx5_esw_vport_vhca_id_set(struct mlx5_eswitch *esw, u16 vport_num) { u16 *old_entry, *vhca_map_entry, vhca_id; int err; err = mlx5_esw_query_vport_vhca_id(esw, vport_num, &vhca_id); if (err) { esw_warn(esw->dev, "Getting vhca_id for vport failed (vport=%u,err=%d)\n", vport_num, err); return err; } vhca_map_entry = kmalloc(sizeof(*vhca_map_entry), GFP_KERNEL); if (!vhca_map_entry) return -ENOMEM; *vhca_map_entry = vport_num; old_entry = xa_store(&esw->offloads.vhca_map, vhca_id, vhca_map_entry, GFP_KERNEL); if (xa_is_err(old_entry)) { kfree(vhca_map_entry); return xa_err(old_entry); } kfree(old_entry); return 0; } void mlx5_esw_vport_vhca_id_clear(struct mlx5_eswitch *esw, u16 vport_num) { u16 *vhca_map_entry, vhca_id; int err; err = mlx5_esw_query_vport_vhca_id(esw, vport_num, &vhca_id); if (err) esw_warn(esw->dev, "Getting vhca_id for vport failed (vport=%hu,err=%d)\n", vport_num, err); vhca_map_entry = xa_erase(&esw->offloads.vhca_map, vhca_id); kfree(vhca_map_entry); } int mlx5_eswitch_vhca_id_to_vport(struct mlx5_eswitch *esw, u16 vhca_id, u16 *vport_num) { u16 *res = xa_load(&esw->offloads.vhca_map, vhca_id); if (!res) return -ENOENT; *vport_num = *res; return 0; } u32 mlx5_eswitch_get_vport_metadata_for_set(struct mlx5_eswitch *esw, u16 vport_num) { struct mlx5_vport *vport = mlx5_eswitch_get_vport(esw, vport_num); if (WARN_ON_ONCE(IS_ERR(vport))) return 0; return vport->metadata; } EXPORT_SYMBOL(mlx5_eswitch_get_vport_metadata_for_set); static bool is_port_function_supported(struct mlx5_eswitch *esw, u16 vport_num) { return vport_num == MLX5_VPORT_PF || mlx5_eswitch_is_vf_vport(esw, vport_num) || mlx5_esw_is_sf_vport(esw, vport_num); } int mlx5_devlink_port_function_hw_addr_get(struct devlink_port *port, u8 *hw_addr, int *hw_addr_len, struct netlink_ext_ack *extack) { struct mlx5_eswitch *esw; struct mlx5_vport *vport; u16 vport_num; esw = mlx5_devlink_eswitch_get(port->devlink); if (IS_ERR(esw)) return PTR_ERR(esw); vport_num = mlx5_esw_devlink_port_index_to_vport_num(port->index); if (!is_port_function_supported(esw, vport_num)) return -EOPNOTSUPP; vport = mlx5_eswitch_get_vport(esw, vport_num); if (IS_ERR(vport)) { NL_SET_ERR_MSG_MOD(extack, "Invalid port"); return PTR_ERR(vport); } mutex_lock(&esw->state_lock); ether_addr_copy(hw_addr, vport->info.mac); *hw_addr_len = ETH_ALEN; mutex_unlock(&esw->state_lock); return 0; } int mlx5_devlink_port_function_hw_addr_set(struct devlink_port *port, const u8 *hw_addr, int hw_addr_len, struct netlink_ext_ack *extack) { struct mlx5_eswitch *esw; u16 vport_num; esw = mlx5_devlink_eswitch_get(port->devlink); if (IS_ERR(esw)) { NL_SET_ERR_MSG_MOD(extack, "Eswitch doesn't support set hw_addr"); return PTR_ERR(esw); } vport_num = mlx5_esw_devlink_port_index_to_vport_num(port->index); if (!is_port_function_supported(esw, vport_num)) { NL_SET_ERR_MSG_MOD(extack, "Port doesn't support set hw_addr"); return -EINVAL; } return mlx5_eswitch_set_vport_mac(esw, vport_num, hw_addr); }
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