2396 lines
63 KiB
C
2396 lines
63 KiB
C
/*
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* Copyright (c) 2015, Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/etherdevice.h>
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#include <linux/debugfs.h>
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#include <linux/mlx5/driver.h>
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#include <linux/mlx5/mlx5_ifc.h>
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#include <linux/mlx5/vport.h>
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#include <linux/mlx5/fs.h>
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#include <linux/mlx5/mpfs.h>
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#include "esw/acl/lgcy.h"
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#include "esw/legacy.h"
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#include "esw/qos.h"
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#include "mlx5_core.h"
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#include "lib/eq.h"
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#include "lag/lag.h"
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#include "eswitch.h"
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#include "fs_core.h"
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#include "devlink.h"
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#include "ecpf.h"
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#include "en/mod_hdr.h"
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#include "en_accel/ipsec.h"
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enum {
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MLX5_ACTION_NONE = 0,
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MLX5_ACTION_ADD = 1,
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MLX5_ACTION_DEL = 2,
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};
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/* Vport UC/MC hash node */
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struct vport_addr {
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struct l2addr_node node;
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u8 action;
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u16 vport;
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struct mlx5_flow_handle *flow_rule;
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bool mpfs; /* UC MAC was added to MPFs */
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/* A flag indicating that mac was added due to mc promiscuous vport */
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bool mc_promisc;
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};
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static int mlx5_eswitch_check(const struct mlx5_core_dev *dev)
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{
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if (MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
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return -EOPNOTSUPP;
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if (!MLX5_ESWITCH_MANAGER(dev))
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return -EOPNOTSUPP;
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return 0;
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}
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static struct mlx5_eswitch *__mlx5_devlink_eswitch_get(struct devlink *devlink, bool check)
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{
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struct mlx5_core_dev *dev = devlink_priv(devlink);
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int err;
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if (check) {
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err = mlx5_eswitch_check(dev);
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if (err)
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return ERR_PTR(err);
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}
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return dev->priv.eswitch;
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}
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struct mlx5_eswitch *__must_check
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mlx5_devlink_eswitch_get(struct devlink *devlink)
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{
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return __mlx5_devlink_eswitch_get(devlink, true);
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}
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struct mlx5_eswitch *mlx5_devlink_eswitch_nocheck_get(struct devlink *devlink)
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{
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return __mlx5_devlink_eswitch_get(devlink, false);
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}
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struct mlx5_vport *__must_check
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mlx5_eswitch_get_vport(struct mlx5_eswitch *esw, u16 vport_num)
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{
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struct mlx5_vport *vport;
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if (!esw)
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return ERR_PTR(-EPERM);
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vport = xa_load(&esw->vports, vport_num);
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if (!vport) {
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esw_debug(esw->dev, "vport out of range: num(0x%x)\n", vport_num);
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return ERR_PTR(-EINVAL);
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}
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return vport;
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}
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static int arm_vport_context_events_cmd(struct mlx5_core_dev *dev, u16 vport,
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u32 events_mask)
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{
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u32 in[MLX5_ST_SZ_DW(modify_nic_vport_context_in)] = {};
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void *nic_vport_ctx;
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MLX5_SET(modify_nic_vport_context_in, in,
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opcode, MLX5_CMD_OP_MODIFY_NIC_VPORT_CONTEXT);
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MLX5_SET(modify_nic_vport_context_in, in, field_select.change_event, 1);
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MLX5_SET(modify_nic_vport_context_in, in, vport_number, vport);
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if (vport || mlx5_core_is_ecpf(dev))
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MLX5_SET(modify_nic_vport_context_in, in, other_vport, 1);
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nic_vport_ctx = MLX5_ADDR_OF(modify_nic_vport_context_in,
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in, nic_vport_context);
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MLX5_SET(nic_vport_context, nic_vport_ctx, arm_change_event, 1);
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if (events_mask & MLX5_VPORT_UC_ADDR_CHANGE)
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MLX5_SET(nic_vport_context, nic_vport_ctx,
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event_on_uc_address_change, 1);
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if (events_mask & MLX5_VPORT_MC_ADDR_CHANGE)
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MLX5_SET(nic_vport_context, nic_vport_ctx,
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event_on_mc_address_change, 1);
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if (events_mask & MLX5_VPORT_PROMISC_CHANGE)
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MLX5_SET(nic_vport_context, nic_vport_ctx,
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event_on_promisc_change, 1);
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return mlx5_cmd_exec_in(dev, modify_nic_vport_context, in);
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}
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/* E-Switch vport context HW commands */
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int mlx5_eswitch_modify_esw_vport_context(struct mlx5_core_dev *dev, u16 vport,
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bool other_vport, void *in)
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{
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MLX5_SET(modify_esw_vport_context_in, in, opcode,
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MLX5_CMD_OP_MODIFY_ESW_VPORT_CONTEXT);
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MLX5_SET(modify_esw_vport_context_in, in, vport_number, vport);
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MLX5_SET(modify_esw_vport_context_in, in, other_vport, other_vport);
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return mlx5_cmd_exec_in(dev, modify_esw_vport_context, in);
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}
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static int modify_esw_vport_cvlan(struct mlx5_core_dev *dev, u16 vport,
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u16 vlan, u8 qos, u8 set_flags)
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{
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u32 in[MLX5_ST_SZ_DW(modify_esw_vport_context_in)] = {};
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if (!MLX5_CAP_ESW(dev, vport_cvlan_strip) ||
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!MLX5_CAP_ESW(dev, vport_cvlan_insert_if_not_exist))
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return -EOPNOTSUPP;
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esw_debug(dev, "Set Vport[%d] VLAN %d qos %d set=%x\n",
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vport, vlan, qos, set_flags);
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if (set_flags & SET_VLAN_STRIP)
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MLX5_SET(modify_esw_vport_context_in, in,
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esw_vport_context.vport_cvlan_strip, 1);
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if (set_flags & SET_VLAN_INSERT) {
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if (MLX5_CAP_ESW(dev, vport_cvlan_insert_always)) {
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/* insert either if vlan exist in packet or not */
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MLX5_SET(modify_esw_vport_context_in, in,
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esw_vport_context.vport_cvlan_insert,
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MLX5_VPORT_CVLAN_INSERT_ALWAYS);
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} else {
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/* insert only if no vlan in packet */
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MLX5_SET(modify_esw_vport_context_in, in,
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esw_vport_context.vport_cvlan_insert,
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MLX5_VPORT_CVLAN_INSERT_WHEN_NO_CVLAN);
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}
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MLX5_SET(modify_esw_vport_context_in, in,
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esw_vport_context.cvlan_pcp, qos);
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MLX5_SET(modify_esw_vport_context_in, in,
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esw_vport_context.cvlan_id, vlan);
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}
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MLX5_SET(modify_esw_vport_context_in, in,
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field_select.vport_cvlan_strip, 1);
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MLX5_SET(modify_esw_vport_context_in, in,
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field_select.vport_cvlan_insert, 1);
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return mlx5_eswitch_modify_esw_vport_context(dev, vport, true, in);
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}
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/* E-Switch FDB */
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static struct mlx5_flow_handle *
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__esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u16 vport, bool rx_rule,
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u8 mac_c[ETH_ALEN], u8 mac_v[ETH_ALEN])
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{
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int match_header = (is_zero_ether_addr(mac_c) ? 0 :
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MLX5_MATCH_OUTER_HEADERS);
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struct mlx5_flow_handle *flow_rule = NULL;
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struct mlx5_flow_act flow_act = {0};
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struct mlx5_flow_destination dest = {};
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struct mlx5_flow_spec *spec;
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void *mv_misc = NULL;
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void *mc_misc = NULL;
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u8 *dmac_v = NULL;
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u8 *dmac_c = NULL;
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if (rx_rule)
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match_header |= MLX5_MATCH_MISC_PARAMETERS;
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spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
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if (!spec)
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return NULL;
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dmac_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
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outer_headers.dmac_47_16);
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dmac_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
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outer_headers.dmac_47_16);
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if (match_header & MLX5_MATCH_OUTER_HEADERS) {
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ether_addr_copy(dmac_v, mac_v);
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ether_addr_copy(dmac_c, mac_c);
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}
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if (match_header & MLX5_MATCH_MISC_PARAMETERS) {
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mv_misc = MLX5_ADDR_OF(fte_match_param, spec->match_value,
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misc_parameters);
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mc_misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
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misc_parameters);
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MLX5_SET(fte_match_set_misc, mv_misc, source_port, MLX5_VPORT_UPLINK);
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MLX5_SET_TO_ONES(fte_match_set_misc, mc_misc, source_port);
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}
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dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
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dest.vport.num = vport;
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esw_debug(esw->dev,
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"\tFDB add rule dmac_v(%pM) dmac_c(%pM) -> vport(%d)\n",
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dmac_v, dmac_c, vport);
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spec->match_criteria_enable = match_header;
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flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
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flow_rule =
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mlx5_add_flow_rules(esw->fdb_table.legacy.fdb, spec,
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&flow_act, &dest, 1);
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if (IS_ERR(flow_rule)) {
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esw_warn(esw->dev,
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"FDB: Failed to add flow rule: dmac_v(%pM) dmac_c(%pM) -> vport(%d), err(%ld)\n",
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dmac_v, dmac_c, vport, PTR_ERR(flow_rule));
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flow_rule = NULL;
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}
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kvfree(spec);
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return flow_rule;
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}
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static struct mlx5_flow_handle *
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esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u8 mac[ETH_ALEN], u16 vport)
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{
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u8 mac_c[ETH_ALEN];
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eth_broadcast_addr(mac_c);
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return __esw_fdb_set_vport_rule(esw, vport, false, mac_c, mac);
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}
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static struct mlx5_flow_handle *
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esw_fdb_set_vport_allmulti_rule(struct mlx5_eswitch *esw, u16 vport)
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{
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u8 mac_c[ETH_ALEN];
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u8 mac_v[ETH_ALEN];
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eth_zero_addr(mac_c);
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eth_zero_addr(mac_v);
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mac_c[0] = 0x01;
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mac_v[0] = 0x01;
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return __esw_fdb_set_vport_rule(esw, vport, false, mac_c, mac_v);
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}
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static struct mlx5_flow_handle *
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esw_fdb_set_vport_promisc_rule(struct mlx5_eswitch *esw, u16 vport)
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{
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u8 mac_c[ETH_ALEN];
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u8 mac_v[ETH_ALEN];
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eth_zero_addr(mac_c);
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eth_zero_addr(mac_v);
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return __esw_fdb_set_vport_rule(esw, vport, true, mac_c, mac_v);
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}
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/* E-Switch vport UC/MC lists management */
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typedef int (*vport_addr_action)(struct mlx5_eswitch *esw,
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struct vport_addr *vaddr);
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static int esw_add_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
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{
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u8 *mac = vaddr->node.addr;
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u16 vport = vaddr->vport;
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int err;
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/* Skip mlx5_mpfs_add_mac for eswitch_managers,
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* it is already done by its netdev in mlx5e_execute_l2_action
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*/
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if (mlx5_esw_is_manager_vport(esw, vport))
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goto fdb_add;
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err = mlx5_mpfs_add_mac(esw->dev, mac);
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if (err) {
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esw_warn(esw->dev,
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"Failed to add L2 table mac(%pM) for vport(0x%x), err(%d)\n",
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mac, vport, err);
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return err;
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}
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vaddr->mpfs = true;
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fdb_add:
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/* SRIOV is enabled: Forward UC MAC to vport */
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if (esw->fdb_table.legacy.fdb && esw->mode == MLX5_ESWITCH_LEGACY) {
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vaddr->flow_rule = esw_fdb_set_vport_rule(esw, mac, vport);
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esw_debug(esw->dev, "\tADDED UC MAC: vport[%d] %pM fr(%p)\n",
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vport, mac, vaddr->flow_rule);
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}
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return 0;
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}
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static int esw_del_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
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{
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u8 *mac = vaddr->node.addr;
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u16 vport = vaddr->vport;
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int err = 0;
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|
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/* Skip mlx5_mpfs_del_mac for eswitch managers,
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* it is already done by its netdev in mlx5e_execute_l2_action
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*/
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if (!vaddr->mpfs || mlx5_esw_is_manager_vport(esw, vport))
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goto fdb_del;
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err = mlx5_mpfs_del_mac(esw->dev, mac);
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if (err)
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esw_warn(esw->dev,
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"Failed to del L2 table mac(%pM) for vport(%d), err(%d)\n",
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mac, vport, err);
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vaddr->mpfs = false;
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|
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fdb_del:
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if (vaddr->flow_rule)
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mlx5_del_flow_rules(vaddr->flow_rule);
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vaddr->flow_rule = NULL;
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|
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return 0;
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}
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|
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static void update_allmulti_vports(struct mlx5_eswitch *esw,
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struct vport_addr *vaddr,
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struct esw_mc_addr *esw_mc)
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{
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u8 *mac = vaddr->node.addr;
|
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struct mlx5_vport *vport;
|
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unsigned long i;
|
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u16 vport_num;
|
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|
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mlx5_esw_for_each_vport(esw, i, vport) {
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struct hlist_head *vport_hash = vport->mc_list;
|
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struct vport_addr *iter_vaddr =
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l2addr_hash_find(vport_hash,
|
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mac,
|
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struct vport_addr);
|
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vport_num = vport->vport;
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if (IS_ERR_OR_NULL(vport->allmulti_rule) ||
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vaddr->vport == vport_num)
|
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continue;
|
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switch (vaddr->action) {
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case MLX5_ACTION_ADD:
|
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if (iter_vaddr)
|
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continue;
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iter_vaddr = l2addr_hash_add(vport_hash, mac,
|
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struct vport_addr,
|
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GFP_KERNEL);
|
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if (!iter_vaddr) {
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esw_warn(esw->dev,
|
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"ALL-MULTI: Failed to add MAC(%pM) to vport[%d] DB\n",
|
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mac, vport_num);
|
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continue;
|
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}
|
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iter_vaddr->vport = vport_num;
|
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iter_vaddr->flow_rule =
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esw_fdb_set_vport_rule(esw,
|
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mac,
|
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vport_num);
|
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iter_vaddr->mc_promisc = true;
|
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break;
|
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case MLX5_ACTION_DEL:
|
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if (!iter_vaddr)
|
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continue;
|
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mlx5_del_flow_rules(iter_vaddr->flow_rule);
|
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l2addr_hash_del(iter_vaddr);
|
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break;
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}
|
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}
|
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}
|
|
|
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static int esw_add_mc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
|
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{
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struct hlist_head *hash = esw->mc_table;
|
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struct esw_mc_addr *esw_mc;
|
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u8 *mac = vaddr->node.addr;
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u16 vport = vaddr->vport;
|
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|
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if (!esw->fdb_table.legacy.fdb)
|
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return 0;
|
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|
|
esw_mc = l2addr_hash_find(hash, mac, struct esw_mc_addr);
|
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if (esw_mc)
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goto add;
|
|
|
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esw_mc = l2addr_hash_add(hash, mac, struct esw_mc_addr, GFP_KERNEL);
|
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if (!esw_mc)
|
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return -ENOMEM;
|
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|
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esw_mc->uplink_rule = /* Forward MC MAC to Uplink */
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esw_fdb_set_vport_rule(esw, mac, MLX5_VPORT_UPLINK);
|
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|
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/* Add this multicast mac to all the mc promiscuous vports */
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update_allmulti_vports(esw, vaddr, esw_mc);
|
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|
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add:
|
|
/* If the multicast mac is added as a result of mc promiscuous vport,
|
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* 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];
|
|
|
|
if (!MLX5_CAP_GEN(dev, log_max_l2_table))
|
|
return;
|
|
|
|
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);
|
|
|
|
if (!MLX5_CAP_GEN_MAX(esw->dev, hca_cap_2))
|
|
goto out_free;
|
|
|
|
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);
|
|
|
|
err = mlx5_esw_ipsec_vf_offload_get(esw->dev, vport);
|
|
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, struct mlx5_vport *vport,
|
|
enum mlx5_eswitch_vport_event enabled_events)
|
|
{
|
|
u16 vport_num = vport->vport;
|
|
int ret;
|
|
|
|
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;
|
|
if (vport->vport != MLX5_VPORT_PF &&
|
|
(vport->info.ipsec_crypto_enabled || vport->info.ipsec_packet_enabled))
|
|
esw->enabled_ipsec_vf_count++;
|
|
|
|
/* 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_num) &&
|
|
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, struct mlx5_vport *vport)
|
|
{
|
|
u16 vport_num = vport->vport;
|
|
|
|
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 */
|
|
if (MLX5_CAP_GEN(esw->dev, log_max_l2_table))
|
|
arm_vport_context_events_cmd(esw->dev, vport_num, 0);
|
|
|
|
if (!mlx5_esw_is_manager_vport(esw, vport_num) &&
|
|
MLX5_CAP_GEN(esw->dev, vhca_resource_manager))
|
|
mlx5_esw_vport_vhca_id_clear(esw, vport_num);
|
|
|
|
if (vport->vport != MLX5_VPORT_PF &&
|
|
(vport->info.ipsec_crypto_enabled || vport->info.ipsec_packet_enabled))
|
|
esw->enabled_ipsec_vf_count--;
|
|
|
|
/* 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;
|
|
}
|
|
}
|
|
|
|
static void mlx5_eswitch_clear_ec_vf_vports_info(struct mlx5_eswitch *esw)
|
|
{
|
|
struct mlx5_vport *vport;
|
|
unsigned long i;
|
|
|
|
mlx5_esw_for_each_ec_vf_vport(esw, i, vport, esw->esw_funcs.num_ec_vfs) {
|
|
memset(&vport->qos, 0, sizeof(vport->qos));
|
|
memset(&vport->info, 0, sizeof(vport->info));
|
|
vport->info.link_state = MLX5_VPORT_ADMIN_STATE_AUTO;
|
|
}
|
|
}
|
|
|
|
static int mlx5_eswitch_load_vport(struct mlx5_eswitch *esw, struct mlx5_vport *vport,
|
|
enum mlx5_eswitch_vport_event enabled_events)
|
|
{
|
|
int err;
|
|
|
|
err = mlx5_esw_vport_enable(esw, vport, enabled_events);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mlx5_esw_offloads_load_rep(esw, vport);
|
|
if (err)
|
|
goto err_rep;
|
|
|
|
return err;
|
|
|
|
err_rep:
|
|
mlx5_esw_vport_disable(esw, vport);
|
|
return err;
|
|
}
|
|
|
|
static void mlx5_eswitch_unload_vport(struct mlx5_eswitch *esw, struct mlx5_vport *vport)
|
|
{
|
|
mlx5_esw_offloads_unload_rep(esw, vport);
|
|
mlx5_esw_vport_disable(esw, vport);
|
|
}
|
|
|
|
static int mlx5_eswitch_load_pf_vf_vport(struct mlx5_eswitch *esw, u16 vport_num,
|
|
enum mlx5_eswitch_vport_event enabled_events)
|
|
{
|
|
struct mlx5_vport *vport;
|
|
int err;
|
|
|
|
vport = mlx5_eswitch_get_vport(esw, vport_num);
|
|
if (IS_ERR(vport))
|
|
return PTR_ERR(vport);
|
|
|
|
err = mlx5_esw_offloads_init_pf_vf_rep(esw, vport);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mlx5_eswitch_load_vport(esw, vport, enabled_events);
|
|
if (err)
|
|
goto err_load;
|
|
return 0;
|
|
|
|
err_load:
|
|
mlx5_esw_offloads_cleanup_pf_vf_rep(esw, vport);
|
|
return err;
|
|
}
|
|
|
|
static void mlx5_eswitch_unload_pf_vf_vport(struct mlx5_eswitch *esw, u16 vport_num)
|
|
{
|
|
struct mlx5_vport *vport;
|
|
|
|
vport = mlx5_eswitch_get_vport(esw, vport_num);
|
|
if (IS_ERR(vport))
|
|
return;
|
|
|
|
mlx5_eswitch_unload_vport(esw, vport);
|
|
mlx5_esw_offloads_cleanup_pf_vf_rep(esw, vport);
|
|
}
|
|
|
|
int mlx5_eswitch_load_sf_vport(struct mlx5_eswitch *esw, u16 vport_num,
|
|
enum mlx5_eswitch_vport_event enabled_events,
|
|
struct mlx5_devlink_port *dl_port, u32 controller, u32 sfnum)
|
|
{
|
|
struct mlx5_vport *vport;
|
|
int err;
|
|
|
|
vport = mlx5_eswitch_get_vport(esw, vport_num);
|
|
if (IS_ERR(vport))
|
|
return PTR_ERR(vport);
|
|
|
|
err = mlx5_esw_offloads_init_sf_rep(esw, vport, dl_port, controller, sfnum);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mlx5_eswitch_load_vport(esw, vport, enabled_events);
|
|
if (err)
|
|
goto err_load;
|
|
|
|
return 0;
|
|
|
|
err_load:
|
|
mlx5_esw_offloads_cleanup_sf_rep(esw, vport);
|
|
return err;
|
|
}
|
|
|
|
void mlx5_eswitch_unload_sf_vport(struct mlx5_eswitch *esw, u16 vport_num)
|
|
{
|
|
struct mlx5_vport *vport;
|
|
|
|
vport = mlx5_eswitch_get_vport(esw, vport_num);
|
|
if (IS_ERR(vport))
|
|
return;
|
|
|
|
mlx5_eswitch_unload_vport(esw, vport);
|
|
mlx5_esw_offloads_cleanup_sf_rep(esw, vport);
|
|
}
|
|
|
|
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_pf_vf_vport(esw, vport->vport);
|
|
}
|
|
}
|
|
|
|
static void mlx5_eswitch_unload_ec_vf_vports(struct mlx5_eswitch *esw,
|
|
u16 num_ec_vfs)
|
|
{
|
|
struct mlx5_vport *vport;
|
|
unsigned long i;
|
|
|
|
mlx5_esw_for_each_ec_vf_vport(esw, i, vport, num_ec_vfs) {
|
|
if (!vport->enabled)
|
|
continue;
|
|
mlx5_eswitch_unload_pf_vf_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_pf_vf_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 mlx5_eswitch_load_ec_vf_vports(struct mlx5_eswitch *esw, u16 num_ec_vfs,
|
|
enum mlx5_eswitch_vport_event enabled_events)
|
|
{
|
|
struct mlx5_vport *vport;
|
|
unsigned long i;
|
|
int err;
|
|
|
|
mlx5_esw_for_each_ec_vf_vport(esw, i, vport, num_ec_vfs) {
|
|
err = mlx5_eswitch_load_pf_vf_vport(esw, vport->vport, enabled_events);
|
|
if (err)
|
|
goto vf_err;
|
|
}
|
|
|
|
return 0;
|
|
|
|
vf_err:
|
|
mlx5_eswitch_unload_ec_vf_vports(esw, num_ec_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)
|
|
{
|
|
bool pf_needed;
|
|
int ret;
|
|
|
|
pf_needed = mlx5_core_is_ecpf_esw_manager(esw->dev) ||
|
|
esw->mode == MLX5_ESWITCH_LEGACY;
|
|
|
|
/* Enable PF vport */
|
|
if (pf_needed) {
|
|
ret = mlx5_eswitch_load_pf_vf_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_pf_vf_vport(esw, MLX5_VPORT_ECPF, enabled_events);
|
|
if (ret)
|
|
goto ecpf_err;
|
|
if (mlx5_core_ec_sriov_enabled(esw->dev)) {
|
|
ret = mlx5_eswitch_load_ec_vf_vports(esw, esw->esw_funcs.num_ec_vfs,
|
|
enabled_events);
|
|
if (ret)
|
|
goto ec_vf_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_core_ec_sriov_enabled(esw->dev))
|
|
mlx5_eswitch_unload_ec_vf_vports(esw, esw->esw_funcs.num_ec_vfs);
|
|
ec_vf_err:
|
|
if (mlx5_ecpf_vport_exists(esw->dev))
|
|
mlx5_eswitch_unload_pf_vf_vport(esw, MLX5_VPORT_ECPF);
|
|
ecpf_err:
|
|
host_pf_disable_hca(esw->dev);
|
|
pf_hca_err:
|
|
if (pf_needed)
|
|
mlx5_eswitch_unload_pf_vf_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)) {
|
|
if (mlx5_core_ec_sriov_enabled(esw->dev))
|
|
mlx5_eswitch_unload_ec_vf_vports(esw, esw->esw_funcs.num_vfs);
|
|
mlx5_eswitch_unload_pf_vf_vport(esw, MLX5_VPORT_ECPF);
|
|
}
|
|
|
|
host_pf_disable_hca(esw->dev);
|
|
|
|
if (mlx5_core_is_ecpf_esw_manager(esw->dev) ||
|
|
esw->mode == MLX5_ESWITCH_LEGACY)
|
|
mlx5_eswitch_unload_pf_vf_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 = devl_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);
|
|
if (mlx5_core_ec_sriov_enabled(esw->dev))
|
|
esw->esw_funcs.num_ec_vfs = num_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, "egress 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;
|
|
|
|
devl_assert_locked(priv_to_devlink(esw->dev));
|
|
|
|
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), necvfs(%d), active vports(%d)\n",
|
|
esw->mode == MLX5_ESWITCH_LEGACY ? "LEGACY" : "OFFLOADS",
|
|
esw->esw_funcs.num_vfs, esw->esw_funcs.num_ec_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 = 0;
|
|
|
|
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);
|
|
|
|
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;
|
|
/* If this is the ECPF the number of host VFs is managed via the
|
|
* eswitch function change event handler, and any num_vfs provided
|
|
* here are intended to be EC VFs.
|
|
*/
|
|
if (!mlx5_core_is_ecpf(esw->dev)) {
|
|
ret = mlx5_eswitch_load_vf_vports(esw, num_vfs, vport_events);
|
|
if (!ret)
|
|
esw->esw_funcs.num_vfs = num_vfs;
|
|
} else if (mlx5_core_ec_sriov_enabled(esw->dev)) {
|
|
ret = mlx5_eswitch_load_ec_vf_vports(esw, num_vfs, vport_events);
|
|
if (!ret)
|
|
esw->esw_funcs.num_ec_vfs = num_vfs;
|
|
}
|
|
}
|
|
|
|
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));
|
|
/* 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 && !esw->esw_funcs.num_ec_vfs && !clear_vf)
|
|
return;
|
|
|
|
esw_info(esw->dev, "Unload vfs: mode(%s), nvfs(%d), necvfs(%d), active vports(%d)\n",
|
|
esw->mode == MLX5_ESWITCH_LEGACY ? "LEGACY" : "OFFLOADS",
|
|
esw->esw_funcs.num_vfs, esw->esw_funcs.num_ec_vfs, esw->enabled_vports);
|
|
|
|
if (!mlx5_core_is_ecpf(esw->dev)) {
|
|
mlx5_eswitch_unload_vf_vports(esw, esw->esw_funcs.num_vfs);
|
|
if (clear_vf)
|
|
mlx5_eswitch_clear_vf_vports_info(esw);
|
|
} else if (mlx5_core_ec_sriov_enabled(esw->dev)) {
|
|
mlx5_eswitch_unload_ec_vf_vports(esw, esw->esw_funcs.num_ec_vfs);
|
|
if (clear_vf)
|
|
mlx5_eswitch_clear_ec_vf_vports_info(esw);
|
|
}
|
|
|
|
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);
|
|
|
|
if (!mlx5_core_is_ecpf(esw->dev))
|
|
esw->esw_funcs.num_vfs = 0;
|
|
else
|
|
esw->esw_funcs.num_ec_vfs = 0;
|
|
}
|
|
|
|
/* 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), necvfs(%d), active vports(%d)\n",
|
|
esw->mode == MLX5_ESWITCH_LEGACY ? "LEGACY" : "OFFLOADS",
|
|
esw->esw_funcs.num_vfs, esw->esw_funcs.num_ec_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);
|
|
mlx5_eswitch_disable_locked(esw);
|
|
esw->mode = MLX5_ESWITCH_LEGACY;
|
|
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,
|
|
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, 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, 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, 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, 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_core_ec_sriov_enabled(esw->dev)) {
|
|
int ec_vf_base_num = mlx5_core_ec_vf_vport_base(dev);
|
|
|
|
for (i = 0; i < mlx5_core_max_ec_vfs(esw->dev); i++) {
|
|
err = mlx5_esw_vport_alloc(esw, idx, ec_vf_base_num + i);
|
|
if (err)
|
|
goto err;
|
|
idx++;
|
|
}
|
|
}
|
|
|
|
if (mlx5_ecpf_vport_exists(dev) ||
|
|
mlx5_core_is_ecpf_esw_manager(dev)) {
|
|
err = mlx5_esw_vport_alloc(esw, idx, MLX5_VPORT_ECPF);
|
|
if (err)
|
|
goto err;
|
|
idx++;
|
|
}
|
|
err = mlx5_esw_vport_alloc(esw, idx, MLX5_VPORT_UPLINK);
|
|
if (err)
|
|
goto err;
|
|
return 0;
|
|
|
|
err:
|
|
mlx5_esw_vports_cleanup(esw);
|
|
return err;
|
|
}
|
|
|
|
static int mlx5_devlink_esw_multiport_set(struct devlink *devlink, u32 id,
|
|
struct devlink_param_gset_ctx *ctx)
|
|
{
|
|
struct mlx5_core_dev *dev = devlink_priv(devlink);
|
|
|
|
if (!MLX5_ESWITCH_MANAGER(dev))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (ctx->val.vbool)
|
|
return mlx5_lag_mpesw_enable(dev);
|
|
|
|
mlx5_lag_mpesw_disable(dev);
|
|
return 0;
|
|
}
|
|
|
|
static int mlx5_devlink_esw_multiport_get(struct devlink *devlink, u32 id,
|
|
struct devlink_param_gset_ctx *ctx)
|
|
{
|
|
struct mlx5_core_dev *dev = devlink_priv(devlink);
|
|
|
|
ctx->val.vbool = mlx5_lag_is_mpesw(dev);
|
|
return 0;
|
|
}
|
|
|
|
static const struct devlink_param mlx5_eswitch_params[] = {
|
|
DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_ESW_MULTIPORT,
|
|
"esw_multiport", DEVLINK_PARAM_TYPE_BOOL,
|
|
BIT(DEVLINK_PARAM_CMODE_RUNTIME),
|
|
mlx5_devlink_esw_multiport_get,
|
|
mlx5_devlink_esw_multiport_set, NULL),
|
|
};
|
|
|
|
int mlx5_eswitch_init(struct mlx5_core_dev *dev)
|
|
{
|
|
struct mlx5_eswitch *esw;
|
|
int err;
|
|
|
|
if (!MLX5_VPORT_MANAGER(dev) && !MLX5_ESWITCH_MANAGER(dev))
|
|
return 0;
|
|
|
|
esw = kzalloc(sizeof(*esw), GFP_KERNEL);
|
|
if (!esw)
|
|
return -ENOMEM;
|
|
|
|
err = devl_params_register(priv_to_devlink(dev), mlx5_eswitch_params,
|
|
ARRAY_SIZE(mlx5_eswitch_params));
|
|
if (err)
|
|
goto free_esw;
|
|
|
|
esw->dev = dev;
|
|
esw->manager_vport = mlx5_eswitch_manager_vport(dev);
|
|
esw->first_host_vport = mlx5_eswitch_first_host_vport_num(dev);
|
|
|
|
esw->debugfs_root = debugfs_create_dir("esw", mlx5_debugfs_get_dev_root(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;
|
|
|
|
dev->priv.eswitch = esw;
|
|
err = esw_offloads_init(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;
|
|
BLOCKING_INIT_NOTIFIER_HEAD(&esw->n_head);
|
|
|
|
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);
|
|
dev->priv.eswitch = NULL;
|
|
abort:
|
|
if (esw->work_queue)
|
|
destroy_workqueue(esw->work_queue);
|
|
debugfs_remove_recursive(esw->debugfs_root);
|
|
devl_params_unregister(priv_to_devlink(dev), mlx5_eswitch_params,
|
|
ARRAY_SIZE(mlx5_eswitch_params));
|
|
free_esw:
|
|
kfree(esw);
|
|
return err;
|
|
}
|
|
|
|
void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw)
|
|
{
|
|
if (!esw)
|
|
return;
|
|
|
|
esw_info(esw->dev, "cleanup\n");
|
|
|
|
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(esw);
|
|
esw->dev->priv.eswitch = NULL;
|
|
mlx5_esw_vports_cleanup(esw);
|
|
debugfs_remove_recursive(esw->debugfs_root);
|
|
devl_params_unregister(priv_to_devlink(esw->dev), mlx5_eswitch_params,
|
|
ARRAY_SIZE(mlx5_eswitch_params));
|
|
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)
|
|
{
|
|
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_eswitch_is_pf_vf_vport(struct mlx5_eswitch *esw, u16 vport_num)
|
|
{
|
|
return vport_num == MLX5_VPORT_PF ||
|
|
mlx5_eswitch_is_vf_vport(esw, vport_num);
|
|
}
|
|
|
|
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) {
|
|
if (esw->eswitch_operation_in_progress) {
|
|
up_read(&esw->mode_lock);
|
|
return false;
|
|
}
|
|
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 (esw->eswitch_operation_in_progress ||
|
|
atomic64_read(&esw->user_count) > 0) {
|
|
up_write(&esw->mode_lock);
|
|
return -EBUSY;
|
|
}
|
|
|
|
return esw->mode;
|
|
}
|
|
|
|
int mlx5_esw_lock(struct mlx5_eswitch *esw)
|
|
{
|
|
down_write(&esw->mode_lock);
|
|
|
|
if (esw->eswitch_operation_in_progress) {
|
|
up_write(&esw->mode_lock);
|
|
return -EBUSY;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* 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);
|
|
|
|
bool mlx5_eswitch_block_ipsec(struct mlx5_core_dev *dev)
|
|
{
|
|
struct mlx5_eswitch *esw = dev->priv.eswitch;
|
|
|
|
if (!mlx5_esw_allowed(esw))
|
|
return true;
|
|
|
|
mutex_lock(&esw->state_lock);
|
|
if (esw->enabled_ipsec_vf_count) {
|
|
mutex_unlock(&esw->state_lock);
|
|
return false;
|
|
}
|
|
|
|
dev->num_ipsec_offloads++;
|
|
mutex_unlock(&esw->state_lock);
|
|
return true;
|
|
}
|
|
|
|
void mlx5_eswitch_unblock_ipsec(struct mlx5_core_dev *dev)
|
|
{
|
|
struct mlx5_eswitch *esw = dev->priv.eswitch;
|
|
|
|
if (!mlx5_esw_allowed(esw))
|
|
/* Failure means no eswitch => core dev is not a PF */
|
|
return;
|
|
|
|
mutex_lock(&esw->state_lock);
|
|
dev->num_ipsec_offloads--;
|
|
mutex_unlock(&esw->state_lock);
|
|
}
|