| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Parav Pandit | 4115 | 42.77% | 40 | 20.73% |
| Saeed Mahameed | 1753 | 18.22% | 14 | 7.25% |
| Mohamad Haj Yahia | 823 | 8.55% | 14 | 7.25% |
| Dmytro Linkin | 676 | 7.03% | 5 | 2.59% |
| Bodong Wang | 419 | 4.36% | 22 | 11.40% |
| Roi Dayan | 240 | 2.49% | 7 | 3.63% |
| Chris Mi | 226 | 2.35% | 8 | 4.15% |
| Maor Gottlieb | 179 | 1.86% | 6 | 3.11% |
| Vlad Buslov | 124 | 1.29% | 5 | 2.59% |
| Moshe Shemesh | 120 | 1.25% | 4 | 2.07% |
| Eugenia Emantayev | 106 | 1.10% | 1 | 0.52% |
| Mark Bloch | 106 | 1.10% | 8 | 4.15% |
| Huy Nguyen | 96 | 1.00% | 1 | 0.52% |
| Eli Cohen | 88 | 0.91% | 5 | 2.59% |
| Yishai Hadas | 66 | 0.69% | 1 | 0.52% |
| Or Gerlitz | 64 | 0.67% | 11 | 5.70% |
| Paul Blakey | 53 | 0.55% | 3 | 1.55% |
| Rabie Loulou | 46 | 0.48% | 3 | 1.55% |
| Shay Drory | 42 | 0.44% | 2 | 1.04% |
| Michael Guralnik | 41 | 0.43% | 1 | 0.52% |
| Vu Pham | 38 | 0.39% | 6 | 3.11% |
| Leon Romanovsky | 34 | 0.35% | 3 | 1.55% |
| Hadar Hen Zion | 33 | 0.34% | 4 | 2.07% |
| Jianbo Liu | 26 | 0.27% | 4 | 2.07% |
| Noa Osherovich | 26 | 0.27% | 1 | 0.52% |
| Aya Levin | 15 | 0.16% | 2 | 1.04% |
| Ron Diskin | 14 | 0.15% | 1 | 0.52% |
| Adi Nissim | 12 | 0.12% | 1 | 0.52% |
| Jack Morgenstein | 11 | 0.11% | 1 | 0.52% |
| Tonghao Zhang | 10 | 0.10% | 1 | 0.52% |
| Vladyslav Tarasiuk | 7 | 0.07% | 2 | 1.04% |
| Alaa Hleihel | 3 | 0.03% | 1 | 0.52% |
| Shahar Klein | 3 | 0.03% | 1 | 0.52% |
| Erez Shitrit | 2 | 0.02% | 1 | 0.52% |
| Eli Britstein | 2 | 0.02% | 1 | 0.52% |
| caihuoqing | 1 | 0.01% | 1 | 0.52% |
| Qing Huang | 1 | 0.01% | 1 | 0.52% |
| Total | 9621 | 193 |
/* * Copyright (c) 2015, 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/mlx5/driver.h> #include <linux/mlx5/mlx5_ifc.h> #include <linux/mlx5/vport.h> #include <linux/mlx5/fs.h> #include <linux/mlx5/mpfs.h> #include <linux/debugfs.h> #include "esw/acl/lgcy.h" #include "esw/legacy.h" #include "esw/qos.h" #include "mlx5_core.h" #include "lib/eq.h" #include "eswitch.h" #include "fs_core.h" #include "devlink.h" #include "ecpf.h" #include "en/mod_hdr.h" enum { MLX5_ACTION_NONE = 0, MLX5_ACTION_ADD = 1, MLX5_ACTION_DEL = 2, }; /* Vport UC/MC hash node */ struct vport_addr { struct l2addr_node node; u8 action; u16 vport; struct mlx5_flow_handle *flow_rule; bool mpfs; /* UC MAC was added to MPFs */ /* A flag indicating that mac was added due to mc promiscuous vport */ bool mc_promisc; }; static int mlx5_eswitch_check(const struct mlx5_core_dev *dev) { if (MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH) return -EOPNOTSUPP; if (!MLX5_ESWITCH_MANAGER(dev)) return -EOPNOTSUPP; return 0; } struct mlx5_eswitch *mlx5_devlink_eswitch_get(struct devlink *devlink) { struct mlx5_core_dev *dev = devlink_priv(devlink); int err; err = mlx5_eswitch_check(dev); if (err) return ERR_PTR(err); return dev->priv.eswitch; } struct mlx5_vport *__must_check mlx5_eswitch_get_vport(struct mlx5_eswitch *esw, u16 vport_num) { struct mlx5_vport *vport; if (!esw || !MLX5_CAP_GEN(esw->dev, vport_group_manager)) return ERR_PTR(-EPERM); vport = xa_load(&esw->vports, vport_num); if (!vport) { esw_debug(esw->dev, "vport out of range: num(0x%x)\n", vport_num); return ERR_PTR(-EINVAL); } return vport; } static int arm_vport_context_events_cmd(struct mlx5_core_dev *dev, u16 vport, u32 events_mask) { u32 in[MLX5_ST_SZ_DW(modify_nic_vport_context_in)] = {}; void *nic_vport_ctx; MLX5_SET(modify_nic_vport_context_in, in, opcode, MLX5_CMD_OP_MODIFY_NIC_VPORT_CONTEXT); MLX5_SET(modify_nic_vport_context_in, in, field_select.change_event, 1); MLX5_SET(modify_nic_vport_context_in, in, vport_number, vport); MLX5_SET(modify_nic_vport_context_in, in, other_vport, 1); nic_vport_ctx = MLX5_ADDR_OF(modify_nic_vport_context_in, in, nic_vport_context); MLX5_SET(nic_vport_context, nic_vport_ctx, arm_change_event, 1); if (events_mask & MLX5_VPORT_UC_ADDR_CHANGE) MLX5_SET(nic_vport_context, nic_vport_ctx, event_on_uc_address_change, 1); if (events_mask & MLX5_VPORT_MC_ADDR_CHANGE) MLX5_SET(nic_vport_context, nic_vport_ctx, event_on_mc_address_change, 1); if (events_mask & MLX5_VPORT_PROMISC_CHANGE) MLX5_SET(nic_vport_context, nic_vport_ctx, event_on_promisc_change, 1); return mlx5_cmd_exec_in(dev, modify_nic_vport_context, in); } /* E-Switch vport context HW commands */ int mlx5_eswitch_modify_esw_vport_context(struct mlx5_core_dev *dev, u16 vport, bool other_vport, void *in) { MLX5_SET(modify_esw_vport_context_in, in, opcode, MLX5_CMD_OP_MODIFY_ESW_VPORT_CONTEXT); MLX5_SET(modify_esw_vport_context_in, in, vport_number, vport); MLX5_SET(modify_esw_vport_context_in, in, other_vport, other_vport); return mlx5_cmd_exec_in(dev, modify_esw_vport_context, in); } static int modify_esw_vport_cvlan(struct mlx5_core_dev *dev, u16 vport, u16 vlan, u8 qos, u8 set_flags) { u32 in[MLX5_ST_SZ_DW(modify_esw_vport_context_in)] = {}; if (!MLX5_CAP_ESW(dev, vport_cvlan_strip) || !MLX5_CAP_ESW(dev, vport_cvlan_insert_if_not_exist)) return -EOPNOTSUPP; esw_debug(dev, "Set Vport[%d] VLAN %d qos %d set=%x\n", vport, vlan, qos, set_flags); if (set_flags & SET_VLAN_STRIP) MLX5_SET(modify_esw_vport_context_in, in, esw_vport_context.vport_cvlan_strip, 1); if (set_flags & SET_VLAN_INSERT) { if (MLX5_CAP_ESW(dev, vport_cvlan_insert_always)) { /* insert either if vlan exist in packet or not */ MLX5_SET(modify_esw_vport_context_in, in, esw_vport_context.vport_cvlan_insert, MLX5_VPORT_CVLAN_INSERT_ALWAYS); } else { /* insert only if no vlan in packet */ MLX5_SET(modify_esw_vport_context_in, in, esw_vport_context.vport_cvlan_insert, MLX5_VPORT_CVLAN_INSERT_WHEN_NO_CVLAN); } MLX5_SET(modify_esw_vport_context_in, in, esw_vport_context.cvlan_pcp, qos); MLX5_SET(modify_esw_vport_context_in, in, esw_vport_context.cvlan_id, vlan); } MLX5_SET(modify_esw_vport_context_in, in, field_select.vport_cvlan_strip, 1); MLX5_SET(modify_esw_vport_context_in, in, field_select.vport_cvlan_insert, 1); return mlx5_eswitch_modify_esw_vport_context(dev, vport, true, in); } /* E-Switch FDB */ static struct mlx5_flow_handle * __esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u16 vport, bool rx_rule, u8 mac_c[ETH_ALEN], u8 mac_v[ETH_ALEN]) { int match_header = (is_zero_ether_addr(mac_c) ? 0 : MLX5_MATCH_OUTER_HEADERS); struct mlx5_flow_handle *flow_rule = NULL; struct mlx5_flow_act flow_act = {0}; struct mlx5_flow_destination dest = {}; struct mlx5_flow_spec *spec; void *mv_misc = NULL; void *mc_misc = NULL; u8 *dmac_v = NULL; u8 *dmac_c = NULL; if (rx_rule) match_header |= MLX5_MATCH_MISC_PARAMETERS; spec = kvzalloc(sizeof(*spec), GFP_KERNEL); if (!spec) return NULL; dmac_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers.dmac_47_16); dmac_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, outer_headers.dmac_47_16); if (match_header & MLX5_MATCH_OUTER_HEADERS) { ether_addr_copy(dmac_v, mac_v); ether_addr_copy(dmac_c, mac_c); } if (match_header & MLX5_MATCH_MISC_PARAMETERS) { mv_misc = MLX5_ADDR_OF(fte_match_param, spec->match_value, misc_parameters); mc_misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria, misc_parameters); MLX5_SET(fte_match_set_misc, mv_misc, source_port, MLX5_VPORT_UPLINK); MLX5_SET_TO_ONES(fte_match_set_misc, mc_misc, source_port); } dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT; dest.vport.num = vport; esw_debug(esw->dev, "\tFDB add rule dmac_v(%pM) dmac_c(%pM) -> vport(%d)\n", dmac_v, dmac_c, vport); spec->match_criteria_enable = match_header; flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; flow_rule = mlx5_add_flow_rules(esw->fdb_table.legacy.fdb, spec, &flow_act, &dest, 1); if (IS_ERR(flow_rule)) { esw_warn(esw->dev, "FDB: Failed to add flow rule: dmac_v(%pM) dmac_c(%pM) -> vport(%d), err(%ld)\n", dmac_v, dmac_c, vport, PTR_ERR(flow_rule)); flow_rule = NULL; } kvfree(spec); return flow_rule; } static struct mlx5_flow_handle * esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u8 mac[ETH_ALEN], u16 vport) { u8 mac_c[ETH_ALEN]; eth_broadcast_addr(mac_c); return __esw_fdb_set_vport_rule(esw, vport, false, mac_c, mac); } static struct mlx5_flow_handle * esw_fdb_set_vport_allmulti_rule(struct mlx5_eswitch *esw, u16 vport) { u8 mac_c[ETH_ALEN]; u8 mac_v[ETH_ALEN]; eth_zero_addr(mac_c); eth_zero_addr(mac_v); mac_c[0] = 0x01; mac_v[0] = 0x01; return __esw_fdb_set_vport_rule(esw, vport, false, mac_c, mac_v); } static struct mlx5_flow_handle * esw_fdb_set_vport_promisc_rule(struct mlx5_eswitch *esw, u16 vport) { u8 mac_c[ETH_ALEN]; u8 mac_v[ETH_ALEN]; eth_zero_addr(mac_c); eth_zero_addr(mac_v); return __esw_fdb_set_vport_rule(esw, vport, true, mac_c, mac_v); } /* E-Switch vport UC/MC lists management */ typedef int (*vport_addr_action)(struct mlx5_eswitch *esw, struct vport_addr *vaddr); static int esw_add_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr) { u8 *mac = vaddr->node.addr; u16 vport = vaddr->vport; int err; /* Skip mlx5_mpfs_add_mac for eswitch_managers, * it is already done by its netdev in mlx5e_execute_l2_action */ if (mlx5_esw_is_manager_vport(esw, vport)) goto fdb_add; err = mlx5_mpfs_add_mac(esw->dev, mac); if (err) { esw_warn(esw->dev, "Failed to add L2 table mac(%pM) for vport(0x%x), err(%d)\n", mac, vport, err); return err; } vaddr->mpfs = true; fdb_add: /* SRIOV is enabled: Forward UC MAC to vport */ if (esw->fdb_table.legacy.fdb && esw->mode == MLX5_ESWITCH_LEGACY) vaddr->flow_rule = esw_fdb_set_vport_rule(esw, mac, vport); esw_debug(esw->dev, "\tADDED UC MAC: vport[%d] %pM fr(%p)\n", vport, mac, vaddr->flow_rule); return 0; } static int esw_del_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr) { u8 *mac = vaddr->node.addr; u16 vport = vaddr->vport; int err = 0; /* Skip mlx5_mpfs_del_mac for eswitch managers, * it is already done by its netdev in mlx5e_execute_l2_action */ if (!vaddr->mpfs || mlx5_esw_is_manager_vport(esw, vport)) goto fdb_del; err = mlx5_mpfs_del_mac(esw->dev, mac); if (err) esw_warn(esw->dev, "Failed to del L2 table mac(%pM) for vport(%d), err(%d)\n", mac, vport, err); vaddr->mpfs = false; fdb_del: if (vaddr->flow_rule) mlx5_del_flow_rules(vaddr->flow_rule); vaddr->flow_rule = NULL; return 0; } static void update_allmulti_vports(struct mlx5_eswitch *esw, struct vport_addr *vaddr, struct esw_mc_addr *esw_mc) { u8 *mac = vaddr->node.addr; struct mlx5_vport *vport; unsigned long i; u16 vport_num; mlx5_esw_for_each_vport(esw, i, vport) { struct hlist_head *vport_hash = vport->mc_list; struct vport_addr *iter_vaddr = l2addr_hash_find(vport_hash, mac, struct vport_addr); vport_num = vport->vport; if (IS_ERR_OR_NULL(vport->allmulti_rule) || vaddr->vport == vport_num) continue; switch (vaddr->action) { case MLX5_ACTION_ADD: if (iter_vaddr) continue; iter_vaddr = l2addr_hash_add(vport_hash, mac, struct vport_addr, GFP_KERNEL); if (!iter_vaddr) { esw_warn(esw->dev, "ALL-MULTI: Failed to add MAC(%pM) to vport[%d] DB\n", mac, vport_num); continue; } iter_vaddr->vport = vport_num; iter_vaddr->flow_rule = esw_fdb_set_vport_rule(esw, mac, vport_num); iter_vaddr->mc_promisc = true; break; case MLX5_ACTION_DEL: if (!iter_vaddr) continue; mlx5_del_flow_rules(iter_vaddr->flow_rule); l2addr_hash_del(iter_vaddr); break; } } } static int esw_add_mc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr) { struct hlist_head *hash = esw->mc_table; struct esw_mc_addr *esw_mc; u8 *mac = vaddr->node.addr; u16 vport = vaddr->vport; if (!esw->fdb_table.legacy.fdb) return 0; esw_mc = l2addr_hash_find(hash, mac, struct esw_mc_addr); if (esw_mc) goto add; esw_mc = l2addr_hash_add(hash, mac, struct esw_mc_addr, GFP_KERNEL); if (!esw_mc) return -ENOMEM; esw_mc->uplink_rule = /* Forward MC MAC to Uplink */ esw_fdb_set_vport_rule(esw, mac, MLX5_VPORT_UPLINK); /* Add this multicast mac to all the mc promiscuous vports */ update_allmulti_vports(esw, vaddr, esw_mc); add: /* If the multicast mac is added as a result of mc promiscuous vport, * don't increment the multicast ref count */ if (!vaddr->mc_promisc) esw_mc->refcnt++; /* Forward MC MAC to vport */ vaddr->flow_rule = esw_fdb_set_vport_rule(esw, mac, vport); esw_debug(esw->dev, "\tADDED MC MAC: vport[%d] %pM fr(%p) refcnt(%d) uplinkfr(%p)\n", vport, mac, vaddr->flow_rule, esw_mc->refcnt, esw_mc->uplink_rule); return 0; } static int esw_del_mc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr) { struct hlist_head *hash = esw->mc_table; struct esw_mc_addr *esw_mc; u8 *mac = vaddr->node.addr; u16 vport = vaddr->vport; if (!esw->fdb_table.legacy.fdb) return 0; esw_mc = l2addr_hash_find(hash, mac, struct esw_mc_addr); if (!esw_mc) { esw_warn(esw->dev, "Failed to find eswitch MC addr for MAC(%pM) vport(%d)", mac, vport); return -EINVAL; } esw_debug(esw->dev, "\tDELETE MC MAC: vport[%d] %pM fr(%p) refcnt(%d) uplinkfr(%p)\n", vport, mac, vaddr->flow_rule, esw_mc->refcnt, esw_mc->uplink_rule); if (vaddr->flow_rule) mlx5_del_flow_rules(vaddr->flow_rule); vaddr->flow_rule = NULL; /* If the multicast mac is added as a result of mc promiscuous vport, * don't decrement the multicast ref count. */ if (vaddr->mc_promisc || (--esw_mc->refcnt > 0)) return 0; /* Remove this multicast mac from all the mc promiscuous vports */ update_allmulti_vports(esw, vaddr, esw_mc); if (esw_mc->uplink_rule) mlx5_del_flow_rules(esw_mc->uplink_rule); l2addr_hash_del(esw_mc); return 0; } /* Apply vport UC/MC list to HW l2 table and FDB table */ static void esw_apply_vport_addr_list(struct mlx5_eswitch *esw, struct mlx5_vport *vport, int list_type) { bool is_uc = list_type == MLX5_NVPRT_LIST_TYPE_UC; vport_addr_action vport_addr_add; vport_addr_action vport_addr_del; struct vport_addr *addr; struct l2addr_node *node; struct hlist_head *hash; struct hlist_node *tmp; int hi; vport_addr_add = is_uc ? esw_add_uc_addr : esw_add_mc_addr; vport_addr_del = is_uc ? esw_del_uc_addr : esw_del_mc_addr; hash = is_uc ? vport->uc_list : vport->mc_list; for_each_l2hash_node(node, tmp, hash, hi) { addr = container_of(node, struct vport_addr, node); switch (addr->action) { case MLX5_ACTION_ADD: vport_addr_add(esw, addr); addr->action = MLX5_ACTION_NONE; break; case MLX5_ACTION_DEL: vport_addr_del(esw, addr); l2addr_hash_del(addr); break; } } } /* Sync vport UC/MC list from vport context */ static void esw_update_vport_addr_list(struct mlx5_eswitch *esw, struct mlx5_vport *vport, int list_type) { bool is_uc = list_type == MLX5_NVPRT_LIST_TYPE_UC; u8 (*mac_list)[ETH_ALEN]; struct l2addr_node *node; struct vport_addr *addr; struct hlist_head *hash; struct hlist_node *tmp; int size; int err; int hi; int i; size = is_uc ? MLX5_MAX_UC_PER_VPORT(esw->dev) : MLX5_MAX_MC_PER_VPORT(esw->dev); mac_list = kcalloc(size, ETH_ALEN, GFP_KERNEL); if (!mac_list) return; hash = is_uc ? vport->uc_list : vport->mc_list; for_each_l2hash_node(node, tmp, hash, hi) { addr = container_of(node, struct vport_addr, node); addr->action = MLX5_ACTION_DEL; } if (!vport->enabled) goto out; err = mlx5_query_nic_vport_mac_list(esw->dev, vport->vport, list_type, mac_list, &size); if (err) goto out; esw_debug(esw->dev, "vport[%d] context update %s list size (%d)\n", vport->vport, is_uc ? "UC" : "MC", size); for (i = 0; i < size; i++) { if (is_uc && !is_valid_ether_addr(mac_list[i])) continue; if (!is_uc && !is_multicast_ether_addr(mac_list[i])) continue; addr = l2addr_hash_find(hash, mac_list[i], struct vport_addr); if (addr) { addr->action = MLX5_ACTION_NONE; /* If this mac was previously added because of allmulti * promiscuous rx mode, its now converted to be original * vport mac. */ if (addr->mc_promisc) { struct esw_mc_addr *esw_mc = l2addr_hash_find(esw->mc_table, mac_list[i], struct esw_mc_addr); if (!esw_mc) { esw_warn(esw->dev, "Failed to MAC(%pM) in mcast DB\n", mac_list[i]); continue; } esw_mc->refcnt++; addr->mc_promisc = false; } continue; } addr = l2addr_hash_add(hash, mac_list[i], struct vport_addr, GFP_KERNEL); if (!addr) { esw_warn(esw->dev, "Failed to add MAC(%pM) to vport[%d] DB\n", mac_list[i], vport->vport); continue; } addr->vport = vport->vport; addr->action = MLX5_ACTION_ADD; } out: kfree(mac_list); } /* Sync vport UC/MC list from vport context * Must be called after esw_update_vport_addr_list */ static void esw_update_vport_mc_promisc(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { struct l2addr_node *node; struct vport_addr *addr; struct hlist_head *hash; struct hlist_node *tmp; int hi; hash = vport->mc_list; for_each_l2hash_node(node, tmp, esw->mc_table, hi) { u8 *mac = node->addr; addr = l2addr_hash_find(hash, mac, struct vport_addr); if (addr) { if (addr->action == MLX5_ACTION_DEL) addr->action = MLX5_ACTION_NONE; continue; } addr = l2addr_hash_add(hash, mac, struct vport_addr, GFP_KERNEL); if (!addr) { esw_warn(esw->dev, "Failed to add allmulti MAC(%pM) to vport[%d] DB\n", mac, vport->vport); continue; } addr->vport = vport->vport; addr->action = MLX5_ACTION_ADD; addr->mc_promisc = true; } } /* Apply vport rx mode to HW FDB table */ static void esw_apply_vport_rx_mode(struct mlx5_eswitch *esw, struct mlx5_vport *vport, bool promisc, bool mc_promisc) { struct esw_mc_addr *allmulti_addr = &esw->mc_promisc; if (IS_ERR_OR_NULL(vport->allmulti_rule) != mc_promisc) goto promisc; if (mc_promisc) { vport->allmulti_rule = esw_fdb_set_vport_allmulti_rule(esw, vport->vport); if (!allmulti_addr->uplink_rule) allmulti_addr->uplink_rule = esw_fdb_set_vport_allmulti_rule(esw, MLX5_VPORT_UPLINK); allmulti_addr->refcnt++; } else if (vport->allmulti_rule) { mlx5_del_flow_rules(vport->allmulti_rule); vport->allmulti_rule = NULL; if (--allmulti_addr->refcnt > 0) goto promisc; if (allmulti_addr->uplink_rule) mlx5_del_flow_rules(allmulti_addr->uplink_rule); allmulti_addr->uplink_rule = NULL; } promisc: if (IS_ERR_OR_NULL(vport->promisc_rule) != promisc) return; if (promisc) { vport->promisc_rule = esw_fdb_set_vport_promisc_rule(esw, vport->vport); } else if (vport->promisc_rule) { mlx5_del_flow_rules(vport->promisc_rule); vport->promisc_rule = NULL; } } /* Sync vport rx mode from vport context */ static void esw_update_vport_rx_mode(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { int promisc_all = 0; int promisc_uc = 0; int promisc_mc = 0; int err; err = mlx5_query_nic_vport_promisc(esw->dev, vport->vport, &promisc_uc, &promisc_mc, &promisc_all); if (err) return; esw_debug(esw->dev, "vport[%d] context update rx mode promisc_all=%d, all_multi=%d\n", vport->vport, promisc_all, promisc_mc); if (!vport->info.trusted || !vport->enabled) { promisc_uc = 0; promisc_mc = 0; promisc_all = 0; } esw_apply_vport_rx_mode(esw, vport, promisc_all, (promisc_all || promisc_mc)); } void esw_vport_change_handle_locked(struct mlx5_vport *vport) { struct mlx5_core_dev *dev = vport->dev; struct mlx5_eswitch *esw = dev->priv.eswitch; u8 mac[ETH_ALEN]; mlx5_query_nic_vport_mac_address(dev, vport->vport, true, mac); esw_debug(dev, "vport[%d] Context Changed: perm mac: %pM\n", vport->vport, mac); if (vport->enabled_events & MLX5_VPORT_UC_ADDR_CHANGE) { esw_update_vport_addr_list(esw, vport, MLX5_NVPRT_LIST_TYPE_UC); esw_apply_vport_addr_list(esw, vport, MLX5_NVPRT_LIST_TYPE_UC); } if (vport->enabled_events & MLX5_VPORT_MC_ADDR_CHANGE) esw_update_vport_addr_list(esw, vport, MLX5_NVPRT_LIST_TYPE_MC); if (vport->enabled_events & MLX5_VPORT_PROMISC_CHANGE) { esw_update_vport_rx_mode(esw, vport); if (!IS_ERR_OR_NULL(vport->allmulti_rule)) esw_update_vport_mc_promisc(esw, vport); } if (vport->enabled_events & (MLX5_VPORT_PROMISC_CHANGE | MLX5_VPORT_MC_ADDR_CHANGE)) esw_apply_vport_addr_list(esw, vport, MLX5_NVPRT_LIST_TYPE_MC); esw_debug(esw->dev, "vport[%d] Context Changed: Done\n", vport->vport); if (vport->enabled) arm_vport_context_events_cmd(dev, vport->vport, vport->enabled_events); } static void esw_vport_change_handler(struct work_struct *work) { struct mlx5_vport *vport = container_of(work, struct mlx5_vport, vport_change_handler); struct mlx5_eswitch *esw = vport->dev->priv.eswitch; mutex_lock(&esw->state_lock); esw_vport_change_handle_locked(vport); mutex_unlock(&esw->state_lock); } static void node_guid_gen_from_mac(u64 *node_guid, const u8 *mac) { ((u8 *)node_guid)[7] = mac[0]; ((u8 *)node_guid)[6] = mac[1]; ((u8 *)node_guid)[5] = mac[2]; ((u8 *)node_guid)[4] = 0xff; ((u8 *)node_guid)[3] = 0xfe; ((u8 *)node_guid)[2] = mac[3]; ((u8 *)node_guid)[1] = mac[4]; ((u8 *)node_guid)[0] = mac[5]; } static int esw_vport_setup_acl(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { if (esw->mode == MLX5_ESWITCH_LEGACY) return esw_legacy_vport_acl_setup(esw, vport); else return esw_vport_create_offloads_acl_tables(esw, vport); } static void esw_vport_cleanup_acl(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { if (esw->mode == MLX5_ESWITCH_LEGACY) esw_legacy_vport_acl_cleanup(esw, vport); else esw_vport_destroy_offloads_acl_tables(esw, vport); } static int mlx5_esw_vport_caps_get(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out); void *query_ctx; void *hca_caps; int err; if (!MLX5_CAP_GEN(esw->dev, vhca_resource_manager)) return 0; query_ctx = kzalloc(query_out_sz, GFP_KERNEL); if (!query_ctx) return -ENOMEM; err = mlx5_vport_get_other_func_cap(esw->dev, vport->vport, query_ctx, MLX5_CAP_GENERAL); if (err) goto out_free; hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability); vport->info.roce_enabled = MLX5_GET(cmd_hca_cap, hca_caps, roce); memset(query_ctx, 0, query_out_sz); err = mlx5_vport_get_other_func_cap(esw->dev, vport->vport, query_ctx, MLX5_CAP_GENERAL_2); if (err) goto out_free; hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability); vport->info.mig_enabled = MLX5_GET(cmd_hca_cap_2, hca_caps, migratable); out_free: kfree(query_ctx); return err; } static int esw_vport_setup(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { bool vst_mode_steering = esw_vst_mode_is_steering(esw); u16 vport_num = vport->vport; int flags; int err; err = esw_vport_setup_acl(esw, vport); if (err) return err; if (mlx5_esw_is_manager_vport(esw, vport_num)) return 0; err = mlx5_esw_vport_caps_get(esw, vport); if (err) goto err_caps; mlx5_modify_vport_admin_state(esw->dev, MLX5_VPORT_STATE_OP_MOD_ESW_VPORT, vport_num, 1, vport->info.link_state); /* Host PF has its own mac/guid. */ if (vport_num) { mlx5_modify_nic_vport_mac_address(esw->dev, vport_num, vport->info.mac); mlx5_modify_nic_vport_node_guid(esw->dev, vport_num, vport->info.node_guid); } flags = (vport->info.vlan || vport->info.qos) ? SET_VLAN_STRIP | SET_VLAN_INSERT : 0; if (esw->mode == MLX5_ESWITCH_OFFLOADS || !vst_mode_steering) modify_esw_vport_cvlan(esw->dev, vport_num, vport->info.vlan, vport->info.qos, flags); return 0; err_caps: esw_vport_cleanup_acl(esw, vport); return err; } /* Don't cleanup vport->info, it's needed to restore vport configuration */ static void esw_vport_cleanup(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { u16 vport_num = vport->vport; if (!mlx5_esw_is_manager_vport(esw, vport_num)) mlx5_modify_vport_admin_state(esw->dev, MLX5_VPORT_STATE_OP_MOD_ESW_VPORT, vport_num, 1, MLX5_VPORT_ADMIN_STATE_DOWN); mlx5_esw_qos_vport_disable(esw, vport); esw_vport_cleanup_acl(esw, vport); } int mlx5_esw_vport_enable(struct mlx5_eswitch *esw, u16 vport_num, enum mlx5_eswitch_vport_event enabled_events) { struct mlx5_vport *vport; int ret; vport = mlx5_eswitch_get_vport(esw, vport_num); if (IS_ERR(vport)) return PTR_ERR(vport); mutex_lock(&esw->state_lock); WARN_ON(vport->enabled); esw_debug(esw->dev, "Enabling VPORT(%d)\n", vport_num); ret = esw_vport_setup(esw, vport); if (ret) goto done; /* Sync with current vport context */ vport->enabled_events = enabled_events; vport->enabled = true; /* Esw manager is trusted by default. Host PF (vport 0) is trusted as well * in smartNIC as it's a vport group manager. */ if (mlx5_esw_is_manager_vport(esw, vport_num) || (!vport_num && mlx5_core_is_ecpf(esw->dev))) vport->info.trusted = true; if (!mlx5_esw_is_manager_vport(esw, vport->vport) && MLX5_CAP_GEN(esw->dev, vhca_resource_manager)) { ret = mlx5_esw_vport_vhca_id_set(esw, vport_num); if (ret) goto err_vhca_mapping; } /* External controller host PF has factory programmed MAC. * Read it from the device. */ if (mlx5_core_is_ecpf(esw->dev) && vport_num == MLX5_VPORT_PF) mlx5_query_nic_vport_mac_address(esw->dev, vport_num, true, vport->info.mac); esw_vport_change_handle_locked(vport); esw->enabled_vports++; esw_debug(esw->dev, "Enabled VPORT(%d)\n", vport_num); done: mutex_unlock(&esw->state_lock); return ret; err_vhca_mapping: esw_vport_cleanup(esw, vport); mutex_unlock(&esw->state_lock); return ret; } void mlx5_esw_vport_disable(struct mlx5_eswitch *esw, u16 vport_num) { struct mlx5_vport *vport; vport = mlx5_eswitch_get_vport(esw, vport_num); if (IS_ERR(vport)) return; mutex_lock(&esw->state_lock); if (!vport->enabled) goto done; esw_debug(esw->dev, "Disabling vport(%d)\n", vport_num); /* Mark this vport as disabled to discard new events */ vport->enabled = false; /* Disable events from this vport */ arm_vport_context_events_cmd(esw->dev, vport->vport, 0); if (!mlx5_esw_is_manager_vport(esw, vport->vport) && MLX5_CAP_GEN(esw->dev, vhca_resource_manager)) mlx5_esw_vport_vhca_id_clear(esw, vport_num); /* We don't assume VFs will cleanup after themselves. * Calling vport change handler while vport is disabled will cleanup * the vport resources. */ esw_vport_change_handle_locked(vport); vport->enabled_events = 0; esw_vport_cleanup(esw, vport); esw->enabled_vports--; done: mutex_unlock(&esw->state_lock); } static int eswitch_vport_event(struct notifier_block *nb, unsigned long type, void *data) { struct mlx5_eswitch *esw = mlx5_nb_cof(nb, struct mlx5_eswitch, nb); struct mlx5_eqe *eqe = data; struct mlx5_vport *vport; u16 vport_num; vport_num = be16_to_cpu(eqe->data.vport_change.vport_num); vport = mlx5_eswitch_get_vport(esw, vport_num); if (!IS_ERR(vport)) queue_work(esw->work_queue, &vport->vport_change_handler); return NOTIFY_OK; } /** * mlx5_esw_query_functions - Returns raw output about functions state * @dev: Pointer to device to query * * mlx5_esw_query_functions() allocates and returns functions changed * raw output memory pointer from device on success. Otherwise returns ERR_PTR. * Caller must free the memory using kvfree() when valid pointer is returned. */ const u32 *mlx5_esw_query_functions(struct mlx5_core_dev *dev) { int outlen = MLX5_ST_SZ_BYTES(query_esw_functions_out); u32 in[MLX5_ST_SZ_DW(query_esw_functions_in)] = {}; u32 *out; int err; out = kvzalloc(outlen, GFP_KERNEL); if (!out) return ERR_PTR(-ENOMEM); MLX5_SET(query_esw_functions_in, in, opcode, MLX5_CMD_OP_QUERY_ESW_FUNCTIONS); err = mlx5_cmd_exec(dev, in, sizeof(in), out, outlen); if (!err) return out; kvfree(out); return ERR_PTR(err); } static void mlx5_eswitch_event_handlers_register(struct mlx5_eswitch *esw) { MLX5_NB_INIT(&esw->nb, eswitch_vport_event, NIC_VPORT_CHANGE); mlx5_eq_notifier_register(esw->dev, &esw->nb); if (esw->mode == MLX5_ESWITCH_OFFLOADS && mlx5_eswitch_is_funcs_handler(esw->dev)) { MLX5_NB_INIT(&esw->esw_funcs.nb, mlx5_esw_funcs_changed_handler, ESW_FUNCTIONS_CHANGED); mlx5_eq_notifier_register(esw->dev, &esw->esw_funcs.nb); } } static void mlx5_eswitch_event_handlers_unregister(struct mlx5_eswitch *esw) { if (esw->mode == MLX5_ESWITCH_OFFLOADS && mlx5_eswitch_is_funcs_handler(esw->dev)) mlx5_eq_notifier_unregister(esw->dev, &esw->esw_funcs.nb); mlx5_eq_notifier_unregister(esw->dev, &esw->nb); flush_workqueue(esw->work_queue); } static void mlx5_eswitch_clear_vf_vports_info(struct mlx5_eswitch *esw) { struct mlx5_vport *vport; unsigned long i; mlx5_esw_for_each_vf_vport(esw, i, vport, esw->esw_funcs.num_vfs) { memset(&vport->qos, 0, sizeof(vport->qos)); memset(&vport->info, 0, sizeof(vport->info)); vport->info.link_state = MLX5_VPORT_ADMIN_STATE_AUTO; } } /* Public E-Switch API */ int mlx5_eswitch_load_vport(struct mlx5_eswitch *esw, u16 vport_num, enum mlx5_eswitch_vport_event enabled_events) { int err; err = mlx5_esw_vport_enable(esw, vport_num, enabled_events); if (err) return err; mlx5_esw_vport_debugfs_create(esw, vport_num, false, 0); err = esw_offloads_load_rep(esw, vport_num); if (err) goto err_rep; return err; err_rep: mlx5_esw_vport_debugfs_destroy(esw, vport_num); mlx5_esw_vport_disable(esw, vport_num); return err; } void mlx5_eswitch_unload_vport(struct mlx5_eswitch *esw, u16 vport_num) { esw_offloads_unload_rep(esw, vport_num); mlx5_esw_vport_debugfs_destroy(esw, vport_num); mlx5_esw_vport_disable(esw, vport_num); } void mlx5_eswitch_unload_vf_vports(struct mlx5_eswitch *esw, u16 num_vfs) { struct mlx5_vport *vport; unsigned long i; mlx5_esw_for_each_vf_vport(esw, i, vport, num_vfs) { if (!vport->enabled) continue; mlx5_eswitch_unload_vport(esw, vport->vport); } } int mlx5_eswitch_load_vf_vports(struct mlx5_eswitch *esw, u16 num_vfs, enum mlx5_eswitch_vport_event enabled_events) { struct mlx5_vport *vport; unsigned long i; int err; mlx5_esw_for_each_vf_vport(esw, i, vport, num_vfs) { err = mlx5_eswitch_load_vport(esw, vport->vport, enabled_events); if (err) goto vf_err; } return 0; vf_err: mlx5_eswitch_unload_vf_vports(esw, num_vfs); return err; } static int host_pf_enable_hca(struct mlx5_core_dev *dev) { if (!mlx5_core_is_ecpf(dev)) return 0; /* Once vport and representor are ready, take out the external host PF * out of initializing state. Enabling HCA clears the iser->initializing * bit and host PF driver loading can progress. */ return mlx5_cmd_host_pf_enable_hca(dev); } static void host_pf_disable_hca(struct mlx5_core_dev *dev) { if (!mlx5_core_is_ecpf(dev)) return; mlx5_cmd_host_pf_disable_hca(dev); } /* mlx5_eswitch_enable_pf_vf_vports() enables vports of PF, ECPF and VFs * whichever are present on the eswitch. */ int mlx5_eswitch_enable_pf_vf_vports(struct mlx5_eswitch *esw, enum mlx5_eswitch_vport_event enabled_events) { int ret; /* Enable PF vport */ ret = mlx5_eswitch_load_vport(esw, MLX5_VPORT_PF, enabled_events); if (ret) return ret; /* Enable external host PF HCA */ ret = host_pf_enable_hca(esw->dev); if (ret) goto pf_hca_err; /* Enable ECPF vport */ if (mlx5_ecpf_vport_exists(esw->dev)) { ret = mlx5_eswitch_load_vport(esw, MLX5_VPORT_ECPF, enabled_events); if (ret) goto ecpf_err; } /* Enable VF vports */ ret = mlx5_eswitch_load_vf_vports(esw, esw->esw_funcs.num_vfs, enabled_events); if (ret) goto vf_err; return 0; vf_err: if (mlx5_ecpf_vport_exists(esw->dev)) mlx5_eswitch_unload_vport(esw, MLX5_VPORT_ECPF); ecpf_err: host_pf_disable_hca(esw->dev); pf_hca_err: mlx5_eswitch_unload_vport(esw, MLX5_VPORT_PF); return ret; } /* mlx5_eswitch_disable_pf_vf_vports() disables vports of PF, ECPF and VFs * whichever are previously enabled on the eswitch. */ void mlx5_eswitch_disable_pf_vf_vports(struct mlx5_eswitch *esw) { mlx5_eswitch_unload_vf_vports(esw, esw->esw_funcs.num_vfs); if (mlx5_ecpf_vport_exists(esw->dev)) mlx5_eswitch_unload_vport(esw, MLX5_VPORT_ECPF); host_pf_disable_hca(esw->dev); mlx5_eswitch_unload_vport(esw, MLX5_VPORT_PF); } static void mlx5_eswitch_get_devlink_param(struct mlx5_eswitch *esw) { struct devlink *devlink = priv_to_devlink(esw->dev); union devlink_param_value val; int err; err = devlink_param_driverinit_value_get(devlink, MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM, &val); if (!err) { esw->params.large_group_num = val.vu32; } else { esw_warn(esw->dev, "Devlink can't get param fdb_large_groups, uses default (%d).\n", ESW_OFFLOADS_DEFAULT_NUM_GROUPS); esw->params.large_group_num = ESW_OFFLOADS_DEFAULT_NUM_GROUPS; } } static void mlx5_eswitch_update_num_of_vfs(struct mlx5_eswitch *esw, int num_vfs) { const u32 *out; if (num_vfs < 0) return; if (!mlx5_core_is_ecpf_esw_manager(esw->dev)) { esw->esw_funcs.num_vfs = num_vfs; return; } out = mlx5_esw_query_functions(esw->dev); if (IS_ERR(out)) return; esw->esw_funcs.num_vfs = MLX5_GET(query_esw_functions_out, out, host_params_context.host_num_of_vfs); kvfree(out); } static void mlx5_esw_mode_change_notify(struct mlx5_eswitch *esw, u16 mode) { struct mlx5_esw_event_info info = {}; info.new_mode = mode; blocking_notifier_call_chain(&esw->n_head, 0, &info); } static int mlx5_esw_acls_ns_init(struct mlx5_eswitch *esw) { struct mlx5_core_dev *dev = esw->dev; int total_vports; int err; if (esw->flags & MLX5_ESWITCH_VPORT_ACL_NS_CREATED) return 0; total_vports = mlx5_eswitch_get_total_vports(dev); if (MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support)) { err = mlx5_fs_egress_acls_init(dev, total_vports); if (err) return err; } else { esw_warn(dev, "engress ACL is not supported by FW\n"); } if (MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support)) { err = mlx5_fs_ingress_acls_init(dev, total_vports); if (err) goto err; } else { esw_warn(dev, "ingress ACL is not supported by FW\n"); } esw->flags |= MLX5_ESWITCH_VPORT_ACL_NS_CREATED; return 0; err: if (MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support)) mlx5_fs_egress_acls_cleanup(dev); return err; } static void mlx5_esw_acls_ns_cleanup(struct mlx5_eswitch *esw) { struct mlx5_core_dev *dev = esw->dev; esw->flags &= ~MLX5_ESWITCH_VPORT_ACL_NS_CREATED; if (MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support)) mlx5_fs_ingress_acls_cleanup(dev); if (MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support)) mlx5_fs_egress_acls_cleanup(dev); } /** * mlx5_eswitch_enable_locked - Enable eswitch * @esw: Pointer to eswitch * @num_vfs: Enable eswitch for given number of VFs. This is optional. * Valid value are 0, > 0 and MLX5_ESWITCH_IGNORE_NUM_VFS. * Caller should pass num_vfs > 0 when enabling eswitch for * vf vports. Caller should pass num_vfs = 0, when eswitch * is enabled without sriov VFs or when caller * is unaware of the sriov state of the host PF on ECPF based * eswitch. Caller should pass < 0 when num_vfs should be * completely ignored. This is typically the case when eswitch * is enabled without sriov regardless of PF/ECPF system. * mlx5_eswitch_enable_locked() Enables eswitch in either legacy or offloads * mode. If num_vfs >=0 is provided, it setup VF related eswitch vports. * It returns 0 on success or error code on failure. */ int mlx5_eswitch_enable_locked(struct mlx5_eswitch *esw, int num_vfs) { int err; lockdep_assert_held(&esw->mode_lock); if (!MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, ft_support)) { esw_warn(esw->dev, "FDB is not supported, aborting ...\n"); return -EOPNOTSUPP; } mlx5_eswitch_get_devlink_param(esw); err = mlx5_esw_acls_ns_init(esw); if (err) return err; mlx5_eswitch_update_num_of_vfs(esw, num_vfs); if (esw->mode == MLX5_ESWITCH_LEGACY) { err = esw_legacy_enable(esw); } else { mlx5_rescan_drivers(esw->dev); err = esw_offloads_enable(esw); } if (err) goto abort; esw->fdb_table.flags |= MLX5_ESW_FDB_CREATED; mlx5_eswitch_event_handlers_register(esw); esw_info(esw->dev, "Enable: mode(%s), nvfs(%d), active vports(%d)\n", esw->mode == MLX5_ESWITCH_LEGACY ? "LEGACY" : "OFFLOADS", esw->esw_funcs.num_vfs, esw->enabled_vports); mlx5_esw_mode_change_notify(esw, esw->mode); return 0; abort: mlx5_esw_acls_ns_cleanup(esw); return err; } /** * mlx5_eswitch_enable - Enable eswitch * @esw: Pointer to eswitch * @num_vfs: Enable eswitch switch for given number of VFs. * Caller must pass num_vfs > 0 when enabling eswitch for * vf vports. * mlx5_eswitch_enable() returns 0 on success or error code on failure. */ int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int num_vfs) { bool toggle_lag; int ret; if (!mlx5_esw_allowed(esw)) return 0; devl_assert_locked(priv_to_devlink(esw->dev)); toggle_lag = !mlx5_esw_is_fdb_created(esw); if (toggle_lag) mlx5_lag_disable_change(esw->dev); down_write(&esw->mode_lock); if (!mlx5_esw_is_fdb_created(esw)) { ret = mlx5_eswitch_enable_locked(esw, num_vfs); } else { enum mlx5_eswitch_vport_event vport_events; vport_events = (esw->mode == MLX5_ESWITCH_LEGACY) ? MLX5_LEGACY_SRIOV_VPORT_EVENTS : MLX5_VPORT_UC_ADDR_CHANGE; ret = mlx5_eswitch_load_vf_vports(esw, num_vfs, vport_events); if (!ret) esw->esw_funcs.num_vfs = num_vfs; } up_write(&esw->mode_lock); if (toggle_lag) mlx5_lag_enable_change(esw->dev); return ret; } /* When disabling sriov, free driver level resources. */ void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw, bool clear_vf) { if (!mlx5_esw_allowed(esw)) return; devl_assert_locked(priv_to_devlink(esw->dev)); down_write(&esw->mode_lock); /* If driver is unloaded, this function is called twice by remove_one() * and mlx5_unload(). Prevent the second call. */ if (!esw->esw_funcs.num_vfs && !clear_vf) goto unlock; esw_info(esw->dev, "Unload vfs: mode(%s), nvfs(%d), active vports(%d)\n", esw->mode == MLX5_ESWITCH_LEGACY ? "LEGACY" : "OFFLOADS", esw->esw_funcs.num_vfs, esw->enabled_vports); mlx5_eswitch_unload_vf_vports(esw, esw->esw_funcs.num_vfs); if (clear_vf) mlx5_eswitch_clear_vf_vports_info(esw); /* If disabling sriov in switchdev mode, free meta rules here * because it depends on num_vfs. */ if (esw->mode == MLX5_ESWITCH_OFFLOADS) { struct devlink *devlink = priv_to_devlink(esw->dev); devl_rate_nodes_destroy(devlink); } /* Destroy legacy fdb when disabling sriov in legacy mode. */ if (esw->mode == MLX5_ESWITCH_LEGACY) mlx5_eswitch_disable_locked(esw); esw->esw_funcs.num_vfs = 0; unlock: up_write(&esw->mode_lock); } /* Free resources for corresponding eswitch mode. It is called by devlink * when changing eswitch mode or modprobe when unloading driver. */ void mlx5_eswitch_disable_locked(struct mlx5_eswitch *esw) { struct devlink *devlink = priv_to_devlink(esw->dev); /* Notify eswitch users that it is exiting from current mode. * So that it can do necessary cleanup before the eswitch is disabled. */ mlx5_esw_mode_change_notify(esw, MLX5_ESWITCH_LEGACY); mlx5_eswitch_event_handlers_unregister(esw); esw_info(esw->dev, "Disable: mode(%s), nvfs(%d), active vports(%d)\n", esw->mode == MLX5_ESWITCH_LEGACY ? "LEGACY" : "OFFLOADS", esw->esw_funcs.num_vfs, esw->enabled_vports); if (esw->fdb_table.flags & MLX5_ESW_FDB_CREATED) { esw->fdb_table.flags &= ~MLX5_ESW_FDB_CREATED; if (esw->mode == MLX5_ESWITCH_OFFLOADS) esw_offloads_disable(esw); else if (esw->mode == MLX5_ESWITCH_LEGACY) esw_legacy_disable(esw); mlx5_esw_acls_ns_cleanup(esw); } if (esw->mode == MLX5_ESWITCH_OFFLOADS) devl_rate_nodes_destroy(devlink); } void mlx5_eswitch_disable(struct mlx5_eswitch *esw) { if (!mlx5_esw_allowed(esw)) return; devl_assert_locked(priv_to_devlink(esw->dev)); mlx5_lag_disable_change(esw->dev); down_write(&esw->mode_lock); mlx5_eswitch_disable_locked(esw); esw->mode = MLX5_ESWITCH_LEGACY; up_write(&esw->mode_lock); mlx5_lag_enable_change(esw->dev); } static int mlx5_query_hca_cap_host_pf(struct mlx5_core_dev *dev, void *out) { u16 opmod = (MLX5_CAP_GENERAL << 1) | (HCA_CAP_OPMOD_GET_MAX & 0x01); u8 in[MLX5_ST_SZ_BYTES(query_hca_cap_in)] = {}; MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP); MLX5_SET(query_hca_cap_in, in, op_mod, opmod); MLX5_SET(query_hca_cap_in, in, function_id, MLX5_VPORT_PF); MLX5_SET(query_hca_cap_in, in, other_function, true); return mlx5_cmd_exec_inout(dev, query_hca_cap, in, out); } int mlx5_esw_sf_max_hpf_functions(struct mlx5_core_dev *dev, u16 *max_sfs, u16 *sf_base_id) { int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out); void *query_ctx; void *hca_caps; int err; if (!mlx5_core_is_ecpf(dev)) { *max_sfs = 0; return 0; } query_ctx = kzalloc(query_out_sz, GFP_KERNEL); if (!query_ctx) return -ENOMEM; err = mlx5_query_hca_cap_host_pf(dev, query_ctx); if (err) goto out_free; hca_caps = MLX5_ADDR_OF(query_hca_cap_out, query_ctx, capability); *max_sfs = MLX5_GET(cmd_hca_cap, hca_caps, max_num_sf); *sf_base_id = MLX5_GET(cmd_hca_cap, hca_caps, sf_base_id); out_free: kfree(query_ctx); return err; } static int mlx5_esw_vport_alloc(struct mlx5_eswitch *esw, struct mlx5_core_dev *dev, int index, u16 vport_num) { struct mlx5_vport *vport; int err; vport = kzalloc(sizeof(*vport), GFP_KERNEL); if (!vport) return -ENOMEM; vport->dev = esw->dev; vport->vport = vport_num; vport->index = index; vport->info.link_state = MLX5_VPORT_ADMIN_STATE_AUTO; INIT_WORK(&vport->vport_change_handler, esw_vport_change_handler); err = xa_insert(&esw->vports, vport_num, vport, GFP_KERNEL); if (err) goto insert_err; esw->total_vports++; return 0; insert_err: kfree(vport); return err; } static void mlx5_esw_vport_free(struct mlx5_eswitch *esw, struct mlx5_vport *vport) { xa_erase(&esw->vports, vport->vport); kfree(vport); } static void mlx5_esw_vports_cleanup(struct mlx5_eswitch *esw) { struct mlx5_vport *vport; unsigned long i; mlx5_esw_for_each_vport(esw, i, vport) mlx5_esw_vport_free(esw, vport); xa_destroy(&esw->vports); } static int mlx5_esw_vports_init(struct mlx5_eswitch *esw) { struct mlx5_core_dev *dev = esw->dev; u16 max_host_pf_sfs; u16 base_sf_num; int idx = 0; int err; int i; xa_init(&esw->vports); err = mlx5_esw_vport_alloc(esw, dev, idx, MLX5_VPORT_PF); if (err) goto err; if (esw->first_host_vport == MLX5_VPORT_PF) xa_set_mark(&esw->vports, idx, MLX5_ESW_VPT_HOST_FN); idx++; for (i = 0; i < mlx5_core_max_vfs(dev); i++) { err = mlx5_esw_vport_alloc(esw, dev, idx, idx); if (err) goto err; xa_set_mark(&esw->vports, idx, MLX5_ESW_VPT_VF); xa_set_mark(&esw->vports, idx, MLX5_ESW_VPT_HOST_FN); idx++; } base_sf_num = mlx5_sf_start_function_id(dev); for (i = 0; i < mlx5_sf_max_functions(dev); i++) { err = mlx5_esw_vport_alloc(esw, dev, idx, base_sf_num + i); if (err) goto err; xa_set_mark(&esw->vports, base_sf_num + i, MLX5_ESW_VPT_SF); idx++; } err = mlx5_esw_sf_max_hpf_functions(dev, &max_host_pf_sfs, &base_sf_num); if (err) goto err; for (i = 0; i < max_host_pf_sfs; i++) { err = mlx5_esw_vport_alloc(esw, dev, idx, base_sf_num + i); if (err) goto err; xa_set_mark(&esw->vports, base_sf_num + i, MLX5_ESW_VPT_SF); idx++; } if (mlx5_ecpf_vport_exists(dev)) { err = mlx5_esw_vport_alloc(esw, dev, idx, MLX5_VPORT_ECPF); if (err) goto err; idx++; } err = mlx5_esw_vport_alloc(esw, dev, idx, MLX5_VPORT_UPLINK); if (err) goto err; return 0; err: mlx5_esw_vports_cleanup(esw); return err; } int mlx5_eswitch_init(struct mlx5_core_dev *dev) { struct mlx5_eswitch *esw; int err; if (!MLX5_VPORT_MANAGER(dev)) return 0; esw = kzalloc(sizeof(*esw), GFP_KERNEL); if (!esw) return -ENOMEM; esw->dev = dev; esw->manager_vport = mlx5_eswitch_manager_vport(dev); esw->first_host_vport = mlx5_eswitch_first_host_vport_num(dev); esw->work_queue = create_singlethread_workqueue("mlx5_esw_wq"); if (!esw->work_queue) { err = -ENOMEM; goto abort; } err = mlx5_esw_vports_init(esw); if (err) goto abort; err = esw_offloads_init_reps(esw); if (err) goto reps_err; mutex_init(&esw->offloads.encap_tbl_lock); hash_init(esw->offloads.encap_tbl); mutex_init(&esw->offloads.decap_tbl_lock); hash_init(esw->offloads.decap_tbl); mlx5e_mod_hdr_tbl_init(&esw->offloads.mod_hdr); atomic64_set(&esw->offloads.num_flows, 0); ida_init(&esw->offloads.vport_metadata_ida); xa_init_flags(&esw->offloads.vhca_map, XA_FLAGS_ALLOC); mutex_init(&esw->state_lock); init_rwsem(&esw->mode_lock); refcount_set(&esw->qos.refcnt, 0); esw->enabled_vports = 0; esw->mode = MLX5_ESWITCH_LEGACY; esw->offloads.inline_mode = MLX5_INLINE_MODE_NONE; if (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, reformat) && MLX5_CAP_ESW_FLOWTABLE_FDB(dev, decap)) esw->offloads.encap = DEVLINK_ESWITCH_ENCAP_MODE_BASIC; else esw->offloads.encap = DEVLINK_ESWITCH_ENCAP_MODE_NONE; if (MLX5_ESWITCH_MANAGER(dev) && mlx5_esw_vport_match_metadata_supported(esw)) esw->flags |= MLX5_ESWITCH_VPORT_MATCH_METADATA; dev->priv.eswitch = esw; BLOCKING_INIT_NOTIFIER_HEAD(&esw->n_head); esw->dbgfs = debugfs_create_dir("esw", mlx5_debugfs_get_dev_root(esw->dev)); esw_info(dev, "Total vports %d, per vport: max uc(%d) max mc(%d)\n", esw->total_vports, MLX5_MAX_UC_PER_VPORT(dev), MLX5_MAX_MC_PER_VPORT(dev)); return 0; reps_err: mlx5_esw_vports_cleanup(esw); abort: if (esw->work_queue) destroy_workqueue(esw->work_queue); kfree(esw); return err; } void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw) { if (!esw || !MLX5_VPORT_MANAGER(esw->dev)) return; esw_info(esw->dev, "cleanup\n"); debugfs_remove_recursive(esw->dbgfs); esw->dev->priv.eswitch = NULL; destroy_workqueue(esw->work_queue); WARN_ON(refcount_read(&esw->qos.refcnt)); mutex_destroy(&esw->state_lock); WARN_ON(!xa_empty(&esw->offloads.vhca_map)); xa_destroy(&esw->offloads.vhca_map); ida_destroy(&esw->offloads.vport_metadata_ida); mlx5e_mod_hdr_tbl_destroy(&esw->offloads.mod_hdr); mutex_destroy(&esw->offloads.encap_tbl_lock); mutex_destroy(&esw->offloads.decap_tbl_lock); esw_offloads_cleanup_reps(esw); mlx5_esw_vports_cleanup(esw); kfree(esw); } /* Vport Administration */ static int mlx5_esw_set_vport_mac_locked(struct mlx5_eswitch *esw, struct mlx5_vport *evport, const u8 *mac) { u16 vport_num = evport->vport; u64 node_guid; int err = 0; if (is_multicast_ether_addr(mac)) return -EINVAL; if (evport->info.spoofchk && !is_valid_ether_addr(mac)) mlx5_core_warn(esw->dev, "Set invalid MAC while spoofchk is on, vport(%d)\n", vport_num); err = mlx5_modify_nic_vport_mac_address(esw->dev, vport_num, mac); if (err) { mlx5_core_warn(esw->dev, "Failed to mlx5_modify_nic_vport_mac vport(%d) err=(%d)\n", vport_num, err); return err; } node_guid_gen_from_mac(&node_guid, mac); err = mlx5_modify_nic_vport_node_guid(esw->dev, vport_num, node_guid); if (err) mlx5_core_warn(esw->dev, "Failed to set vport %d node guid, err = %d. RDMA_CM will not function properly for this VF.\n", vport_num, err); ether_addr_copy(evport->info.mac, mac); evport->info.node_guid = node_guid; if (evport->enabled && esw->mode == MLX5_ESWITCH_LEGACY) err = esw_acl_ingress_lgcy_setup(esw, evport); return err; } int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw, u16 vport, const u8 *mac) { struct mlx5_vport *evport = mlx5_eswitch_get_vport(esw, vport); int err = 0; if (IS_ERR(evport)) return PTR_ERR(evport); mutex_lock(&esw->state_lock); err = mlx5_esw_set_vport_mac_locked(esw, evport, mac); mutex_unlock(&esw->state_lock); return err; } static bool mlx5_esw_check_port_type(struct mlx5_eswitch *esw, u16 vport_num, xa_mark_t mark) { struct mlx5_vport *vport; vport = mlx5_eswitch_get_vport(esw, vport_num); if (IS_ERR(vport)) return false; return xa_get_mark(&esw->vports, vport_num, mark); } bool mlx5_eswitch_is_vf_vport(struct mlx5_eswitch *esw, u16 vport_num) { return mlx5_esw_check_port_type(esw, vport_num, MLX5_ESW_VPT_VF); } bool mlx5_esw_is_sf_vport(struct mlx5_eswitch *esw, u16 vport_num) { return mlx5_esw_check_port_type(esw, vport_num, MLX5_ESW_VPT_SF); } int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw, u16 vport, int link_state) { struct mlx5_vport *evport = mlx5_eswitch_get_vport(esw, vport); int opmod = MLX5_VPORT_STATE_OP_MOD_ESW_VPORT; int other_vport = 1; int err = 0; if (!mlx5_esw_allowed(esw)) return -EPERM; if (IS_ERR(evport)) return PTR_ERR(evport); if (vport == MLX5_VPORT_UPLINK) { opmod = MLX5_VPORT_STATE_OP_MOD_UPLINK; other_vport = 0; vport = 0; } mutex_lock(&esw->state_lock); if (esw->mode != MLX5_ESWITCH_LEGACY) { err = -EOPNOTSUPP; goto unlock; } err = mlx5_modify_vport_admin_state(esw->dev, opmod, vport, other_vport, link_state); if (err) { mlx5_core_warn(esw->dev, "Failed to set vport %d link state, opmod = %d, err = %d", vport, opmod, err); goto unlock; } evport->info.link_state = link_state; unlock: mutex_unlock(&esw->state_lock); return err; } int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw, u16 vport, struct ifla_vf_info *ivi) { struct mlx5_vport *evport = mlx5_eswitch_get_vport(esw, vport); if (IS_ERR(evport)) return PTR_ERR(evport); memset(ivi, 0, sizeof(*ivi)); ivi->vf = vport - 1; mutex_lock(&esw->state_lock); ether_addr_copy(ivi->mac, evport->info.mac); ivi->linkstate = evport->info.link_state; ivi->vlan = evport->info.vlan; ivi->qos = evport->info.qos; ivi->spoofchk = evport->info.spoofchk; ivi->trusted = evport->info.trusted; if (evport->qos.enabled) { ivi->min_tx_rate = evport->qos.min_rate; ivi->max_tx_rate = evport->qos.max_rate; } mutex_unlock(&esw->state_lock); return 0; } int __mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw, u16 vport, u16 vlan, u8 qos, u8 set_flags) { struct mlx5_vport *evport = mlx5_eswitch_get_vport(esw, vport); bool vst_mode_steering = esw_vst_mode_is_steering(esw); int err = 0; if (IS_ERR(evport)) return PTR_ERR(evport); if (vlan > 4095 || qos > 7) return -EINVAL; if (esw->mode == MLX5_ESWITCH_OFFLOADS || !vst_mode_steering) { err = modify_esw_vport_cvlan(esw->dev, vport, vlan, qos, set_flags); if (err) return err; } evport->info.vlan = vlan; evport->info.qos = qos; if (evport->enabled && esw->mode == MLX5_ESWITCH_LEGACY) { err = esw_acl_ingress_lgcy_setup(esw, evport); if (err) return err; err = esw_acl_egress_lgcy_setup(esw, evport); } return err; } int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw, u16 vport_num, struct ifla_vf_stats *vf_stats) { struct mlx5_vport *vport = mlx5_eswitch_get_vport(esw, vport_num); int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out); u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)] = {}; struct mlx5_vport_drop_stats stats = {}; int err = 0; u32 *out; if (IS_ERR(vport)) return PTR_ERR(vport); out = kvzalloc(outlen, GFP_KERNEL); if (!out) return -ENOMEM; MLX5_SET(query_vport_counter_in, in, opcode, MLX5_CMD_OP_QUERY_VPORT_COUNTER); MLX5_SET(query_vport_counter_in, in, op_mod, 0); MLX5_SET(query_vport_counter_in, in, vport_number, vport->vport); MLX5_SET(query_vport_counter_in, in, other_vport, 1); err = mlx5_cmd_exec_inout(esw->dev, query_vport_counter, in, out); if (err) goto free_out; #define MLX5_GET_CTR(p, x) \ MLX5_GET64(query_vport_counter_out, p, x) memset(vf_stats, 0, sizeof(*vf_stats)); vf_stats->rx_packets = MLX5_GET_CTR(out, received_eth_unicast.packets) + MLX5_GET_CTR(out, received_ib_unicast.packets) + MLX5_GET_CTR(out, received_eth_multicast.packets) + MLX5_GET_CTR(out, received_ib_multicast.packets) + MLX5_GET_CTR(out, received_eth_broadcast.packets); vf_stats->rx_bytes = MLX5_GET_CTR(out, received_eth_unicast.octets) + MLX5_GET_CTR(out, received_ib_unicast.octets) + MLX5_GET_CTR(out, received_eth_multicast.octets) + MLX5_GET_CTR(out, received_ib_multicast.octets) + MLX5_GET_CTR(out, received_eth_broadcast.octets); vf_stats->tx_packets = MLX5_GET_CTR(out, transmitted_eth_unicast.packets) + MLX5_GET_CTR(out, transmitted_ib_unicast.packets) + MLX5_GET_CTR(out, transmitted_eth_multicast.packets) + MLX5_GET_CTR(out, transmitted_ib_multicast.packets) + MLX5_GET_CTR(out, transmitted_eth_broadcast.packets); vf_stats->tx_bytes = MLX5_GET_CTR(out, transmitted_eth_unicast.octets) + MLX5_GET_CTR(out, transmitted_ib_unicast.octets) + MLX5_GET_CTR(out, transmitted_eth_multicast.octets) + MLX5_GET_CTR(out, transmitted_ib_multicast.octets) + MLX5_GET_CTR(out, transmitted_eth_broadcast.octets); vf_stats->multicast = MLX5_GET_CTR(out, received_eth_multicast.packets) + MLX5_GET_CTR(out, received_ib_multicast.packets); vf_stats->broadcast = MLX5_GET_CTR(out, received_eth_broadcast.packets); err = mlx5_esw_query_vport_drop_stats(esw->dev, vport, &stats); if (err) goto free_out; vf_stats->rx_dropped = stats.rx_dropped; vf_stats->tx_dropped = stats.tx_dropped; free_out: kvfree(out); return err; } u8 mlx5_eswitch_mode(const struct mlx5_core_dev *dev) { struct mlx5_eswitch *esw = dev->priv.eswitch; return mlx5_esw_allowed(esw) ? esw->mode : MLX5_ESWITCH_LEGACY; } EXPORT_SYMBOL_GPL(mlx5_eswitch_mode); enum devlink_eswitch_encap_mode mlx5_eswitch_get_encap_mode(const struct mlx5_core_dev *dev) { struct mlx5_eswitch *esw; esw = dev->priv.eswitch; return (mlx5_eswitch_mode(dev) == MLX5_ESWITCH_OFFLOADS) ? esw->offloads.encap : DEVLINK_ESWITCH_ENCAP_MODE_NONE; } EXPORT_SYMBOL(mlx5_eswitch_get_encap_mode); bool mlx5_esw_multipath_prereq(struct mlx5_core_dev *dev0, struct mlx5_core_dev *dev1) { return (dev0->priv.eswitch->mode == MLX5_ESWITCH_OFFLOADS && dev1->priv.eswitch->mode == MLX5_ESWITCH_OFFLOADS); } int mlx5_esw_event_notifier_register(struct mlx5_eswitch *esw, struct notifier_block *nb) { return blocking_notifier_chain_register(&esw->n_head, nb); } void mlx5_esw_event_notifier_unregister(struct mlx5_eswitch *esw, struct notifier_block *nb) { blocking_notifier_chain_unregister(&esw->n_head, nb); } /** * mlx5_esw_hold() - Try to take a read lock on esw mode lock. * @mdev: mlx5 core device. * * Should be called by esw resources callers. * * Return: true on success or false. */ bool mlx5_esw_hold(struct mlx5_core_dev *mdev) { struct mlx5_eswitch *esw = mdev->priv.eswitch; /* e.g. VF doesn't have eswitch so nothing to do */ if (!mlx5_esw_allowed(esw)) return true; if (down_read_trylock(&esw->mode_lock) != 0) return true; return false; } /** * mlx5_esw_release() - Release a read lock on esw mode lock. * @mdev: mlx5 core device. */ void mlx5_esw_release(struct mlx5_core_dev *mdev) { struct mlx5_eswitch *esw = mdev->priv.eswitch; if (mlx5_esw_allowed(esw)) up_read(&esw->mode_lock); } /** * mlx5_esw_get() - Increase esw user count. * @mdev: mlx5 core device. */ void mlx5_esw_get(struct mlx5_core_dev *mdev) { struct mlx5_eswitch *esw = mdev->priv.eswitch; if (mlx5_esw_allowed(esw)) atomic64_inc(&esw->user_count); } /** * mlx5_esw_put() - Decrease esw user count. * @mdev: mlx5 core device. */ void mlx5_esw_put(struct mlx5_core_dev *mdev) { struct mlx5_eswitch *esw = mdev->priv.eswitch; if (mlx5_esw_allowed(esw)) atomic64_dec_if_positive(&esw->user_count); } /** * mlx5_esw_try_lock() - Take a write lock on esw mode lock. * @esw: eswitch device. * * Should be called by esw mode change routine. * * Return: * * 0 - esw mode if successfully locked and refcount is 0. * * -EBUSY - refcount is not 0. * * -EINVAL - In the middle of switching mode or lock is already held. */ int mlx5_esw_try_lock(struct mlx5_eswitch *esw) { if (down_write_trylock(&esw->mode_lock) == 0) return -EINVAL; if (atomic64_read(&esw->user_count) > 0) { up_write(&esw->mode_lock); return -EBUSY; } return esw->mode; } /** * mlx5_esw_unlock() - Release write lock on esw mode lock * @esw: eswitch device. */ void mlx5_esw_unlock(struct mlx5_eswitch *esw) { up_write(&esw->mode_lock); } /** * mlx5_eswitch_get_total_vports - Get total vports of the eswitch * * @dev: Pointer to core device * * mlx5_eswitch_get_total_vports returns total number of eswitch vports. */ u16 mlx5_eswitch_get_total_vports(const struct mlx5_core_dev *dev) { struct mlx5_eswitch *esw; esw = dev->priv.eswitch; return mlx5_esw_allowed(esw) ? esw->total_vports : 0; } EXPORT_SYMBOL_GPL(mlx5_eswitch_get_total_vports); /** * mlx5_eswitch_get_core_dev - Get the mdev device * @esw : eswitch device. * * Return the mellanox core device which manages the eswitch. */ struct mlx5_core_dev *mlx5_eswitch_get_core_dev(struct mlx5_eswitch *esw) { return mlx5_esw_allowed(esw) ? esw->dev : NULL; } EXPORT_SYMBOL(mlx5_eswitch_get_core_dev);
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