diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/eswitch.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 2075 |
1 files changed, 2075 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c new file mode 100644 index 000000000..48939c72b --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c @@ -0,0 +1,2075 @@ +/* + * 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 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; + + 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; +} + +/* 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_apply_vport_rx_mode(esw, vport, false, false); + 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_handler_register(struct mlx5_eswitch *esw) +{ + 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_handler_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); + + 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); + + MLX5_NB_INIT(&esw->nb, eswitch_vport_event, NIC_VPORT_CHANGE); + mlx5_eq_notifier_register(esw->dev, &esw->nb); + + 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_handler_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_eq_notifier_unregister(esw->dev, &esw->nb); + mlx5_eswitch_event_handler_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); |