spectrum_switchdev.c 33.6 KB
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/*
 * drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
 * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
 * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
 * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
 * Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 * 3. Neither the names of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/skbuff.h>
#include <linux/if_vlan.h>
#include <linux/if_bridge.h>
#include <linux/workqueue.h>
#include <linux/jiffies.h>
#include <net/switchdev.h>

#include "spectrum.h"
#include "core.h"
#include "reg.h"

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static struct mlxsw_sp_port *
mlxsw_sp_port_orig_get(struct net_device *dev,
		       struct mlxsw_sp_port *mlxsw_sp_port)
{
	struct mlxsw_sp_port *mlxsw_sp_vport;
	u16 vid;

	if (!is_vlan_dev(dev))
		return mlxsw_sp_port;

	vid = vlan_dev_vlan_id(dev);
	mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
	WARN_ON(!mlxsw_sp_vport);

	return mlxsw_sp_vport;
}

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static int mlxsw_sp_port_attr_get(struct net_device *dev,
				  struct switchdev_attr *attr)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;

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	mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
	if (!mlxsw_sp_port)
		return -EINVAL;

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	switch (attr->id) {
	case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
		attr->u.ppid.id_len = sizeof(mlxsw_sp->base_mac);
		memcpy(&attr->u.ppid.id, &mlxsw_sp->base_mac,
		       attr->u.ppid.id_len);
		break;
	case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
		attr->u.brport_flags =
			(mlxsw_sp_port->learning ? BR_LEARNING : 0) |
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			(mlxsw_sp_port->learning_sync ? BR_LEARNING_SYNC : 0) |
			(mlxsw_sp_port->uc_flood ? BR_FLOOD : 0);
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		break;
	default:
		return -EOPNOTSUPP;
	}

	return 0;
}

static int mlxsw_sp_port_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
				       u8 state)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	enum mlxsw_reg_spms_state spms_state;
	char *spms_pl;
	u16 vid;
	int err;

	switch (state) {
	case BR_STATE_DISABLED: /* fall-through */
	case BR_STATE_FORWARDING:
		spms_state = MLXSW_REG_SPMS_STATE_FORWARDING;
		break;
	case BR_STATE_LISTENING: /* fall-through */
	case BR_STATE_LEARNING:
		spms_state = MLXSW_REG_SPMS_STATE_LEARNING;
		break;
	case BR_STATE_BLOCKING:
		spms_state = MLXSW_REG_SPMS_STATE_DISCARDING;
		break;
	default:
		BUG();
	}

	spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
	if (!spms_pl)
		return -ENOMEM;
	mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port);
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	if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
		vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
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		mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
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	} else {
		for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
			mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
	}
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	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl);
	kfree(spms_pl);
	return err;
}

static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
					    struct switchdev_trans *trans,
					    u8 state)
{
	if (switchdev_trans_ph_prepare(trans))
		return 0;

	mlxsw_sp_port->stp_state = state;
	return mlxsw_sp_port_stp_state_set(mlxsw_sp_port, state);
}

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static bool mlxsw_sp_vfid_is_vport_br(u16 vfid)
{
	return vfid >= MLXSW_SP_VFID_PORT_MAX;
}

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static int __mlxsw_sp_port_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
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				     u16 idx_begin, u16 idx_end, bool set,
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				     bool only_uc)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
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	u16 local_port = mlxsw_sp_port->local_port;
	enum mlxsw_flood_table_type table_type;
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	u16 range = idx_end - idx_begin + 1;
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	char *sftr_pl;
	int err;

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	if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
		table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
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		if (mlxsw_sp_vfid_is_vport_br(idx_begin))
			local_port = mlxsw_sp_port->local_port;
		else
			local_port = MLXSW_PORT_CPU_PORT;
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	} else {
		table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;
	}

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	sftr_pl = kmalloc(MLXSW_REG_SFTR_LEN, GFP_KERNEL);
	if (!sftr_pl)
		return -ENOMEM;

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	mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_UC, idx_begin,
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			    table_type, range, local_port, set);
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	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
	if (err)
		goto buffer_out;

	/* Flooding control allows one to decide whether a given port will
	 * flood unicast traffic for which there is no FDB entry.
	 */
	if (only_uc)
		goto buffer_out;

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	mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_BM, idx_begin,
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			    table_type, range, local_port, set);
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	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);

buffer_out:
	kfree(sftr_pl);
	return err;
}

static int mlxsw_sp_port_uc_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
				      bool set)
{
	struct net_device *dev = mlxsw_sp_port->dev;
	u16 vid, last_visited_vid;
	int err;

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	if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
		u16 vfid = mlxsw_sp_vport_vfid_get(mlxsw_sp_port);

		return  __mlxsw_sp_port_flood_set(mlxsw_sp_port, vfid, vfid,
						  set, true);
	}

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	for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
		err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, set,
						true);
		if (err) {
			last_visited_vid = vid;
			goto err_port_flood_set;
		}
	}

	return 0;

err_port_flood_set:
	for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
		__mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, !set, true);
	netdev_err(dev, "Failed to configure unicast flooding\n");
	return err;
}

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int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 vfid,
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			     bool set, bool only_uc)
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{
	/* In case of vFIDs, index into the flooding table is relative to
	 * the start of the vFIDs range.
	 */
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	return __mlxsw_sp_port_flood_set(mlxsw_sp_vport, vfid, vfid, set,
					 only_uc);
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}

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static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port,
					   struct switchdev_trans *trans,
					   unsigned long brport_flags)
{
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	unsigned long uc_flood = mlxsw_sp_port->uc_flood ? BR_FLOOD : 0;
	bool set;
	int err;

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	if (!mlxsw_sp_port->bridged)
		return -EINVAL;

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	if (switchdev_trans_ph_prepare(trans))
		return 0;

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	if ((uc_flood ^ brport_flags) & BR_FLOOD) {
		set = mlxsw_sp_port->uc_flood ? false : true;
		err = mlxsw_sp_port_uc_flood_set(mlxsw_sp_port, set);
		if (err)
			return err;
	}

	mlxsw_sp_port->uc_flood = brport_flags & BR_FLOOD ? 1 : 0;
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	mlxsw_sp_port->learning = brport_flags & BR_LEARNING ? 1 : 0;
	mlxsw_sp_port->learning_sync = brport_flags & BR_LEARNING_SYNC ? 1 : 0;
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	return 0;
}

static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time)
{
	char sfdat_pl[MLXSW_REG_SFDAT_LEN];
	int err;

	mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time);
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl);
	if (err)
		return err;
	mlxsw_sp->ageing_time = ageing_time;
	return 0;
}

static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port,
					    struct switchdev_trans *trans,
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					    unsigned long ageing_clock_t)
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{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
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	unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
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	u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000;

	if (switchdev_trans_ph_prepare(trans))
		return 0;

	return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time);
}

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static int mlxsw_sp_port_attr_br_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
					  struct switchdev_trans *trans,
					  struct net_device *orig_dev,
					  bool vlan_enabled)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;

	/* SWITCHDEV_TRANS_PREPARE phase */
	if ((!vlan_enabled) && (mlxsw_sp->master_bridge.dev == orig_dev)) {
		netdev_err(mlxsw_sp_port->dev, "Bridge must be vlan-aware\n");
		return -EINVAL;
	}

	return 0;
}

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static int mlxsw_sp_port_attr_set(struct net_device *dev,
				  const struct switchdev_attr *attr,
				  struct switchdev_trans *trans)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	int err = 0;

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	mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
	if (!mlxsw_sp_port)
		return -EINVAL;

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	switch (attr->id) {
	case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
		err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans,
						       attr->u.stp_state);
		break;
	case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
		err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans,
						      attr->u.brport_flags);
		break;
	case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
		err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans,
						       attr->u.ageing_time);
		break;
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	case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
		err = mlxsw_sp_port_attr_br_vlan_set(mlxsw_sp_port, trans,
						     attr->orig_dev,
						     attr->u.vlan_filtering);
		break;
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	default:
		err = -EOPNOTSUPP;
		break;
	}

	return err;
}

static int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char spvid_pl[MLXSW_REG_SPVID_LEN];

	mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl);
}

static int mlxsw_sp_fid_create(struct mlxsw_sp *mlxsw_sp, u16 fid)
{
	char sfmr_pl[MLXSW_REG_SFMR_LEN];
	int err;

	mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_CREATE_FID, fid, fid);
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);

	if (err)
		return err;

	set_bit(fid, mlxsw_sp->active_fids);
	return 0;
}

static void mlxsw_sp_fid_destroy(struct mlxsw_sp *mlxsw_sp, u16 fid)
{
	char sfmr_pl[MLXSW_REG_SFMR_LEN];

	clear_bit(fid, mlxsw_sp->active_fids);

	mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_DESTROY_FID,
			    fid, fid);
	mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
}

static int mlxsw_sp_port_fid_map(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid)
{
	enum mlxsw_reg_svfa_mt mt;

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	if (!list_empty(&mlxsw_sp_port->vports_list))
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		mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
	else
		mt = MLXSW_REG_SVFA_MT_VID_TO_FID;

	return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, fid, fid);
}

static int mlxsw_sp_port_fid_unmap(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid)
{
	enum mlxsw_reg_svfa_mt mt;

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	if (list_empty(&mlxsw_sp_port->vports_list))
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		return 0;

	mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
	return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, fid, fid);
}

static int mlxsw_sp_port_add_vids(struct net_device *dev, u16 vid_begin,
				  u16 vid_end)
{
	u16 vid;
	int err;

	for (vid = vid_begin; vid <= vid_end; vid++) {
		err = mlxsw_sp_port_add_vid(dev, 0, vid);
		if (err)
			goto err_port_add_vid;
	}
	return 0;

err_port_add_vid:
	for (vid--; vid >= vid_begin; vid--)
		mlxsw_sp_port_kill_vid(dev, 0, vid);
	return err;
}

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static int __mlxsw_sp_port_vlans_set(struct mlxsw_sp_port *mlxsw_sp_port,
				     u16 vid_begin, u16 vid_end, bool is_member,
				     bool untagged)
{
	u16 vid, vid_e;
	int err;

	for (vid = vid_begin; vid <= vid_end;
	     vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
		vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
			    vid_end);

		err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e,
					     is_member, untagged);
		if (err)
			return err;
	}

	return 0;
}

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static int __mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
				     u16 vid_begin, u16 vid_end,
				     bool flag_untagged, bool flag_pvid)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	struct net_device *dev = mlxsw_sp_port->dev;
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	u16 vid, last_visited_vid, old_pvid;
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	enum mlxsw_reg_svfa_mt mt;
	int err;

	/* In case this is invoked with BRIDGE_FLAGS_SELF and port is
	 * not bridged, then packets ingressing through the port with
	 * the specified VIDs will be directed to CPU.
	 */
	if (!mlxsw_sp_port->bridged)
		return mlxsw_sp_port_add_vids(dev, vid_begin, vid_end);

	for (vid = vid_begin; vid <= vid_end; vid++) {
		if (!test_bit(vid, mlxsw_sp->active_fids)) {
			err = mlxsw_sp_fid_create(mlxsw_sp, vid);
			if (err) {
				netdev_err(dev, "Failed to create FID=%d\n",
					   vid);
				return err;
			}

			/* When creating a FID, we set a VID to FID mapping
			 * regardless of the port's mode.
			 */
			mt = MLXSW_REG_SVFA_MT_VID_TO_FID;
			err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt,
							   true, vid, vid);
			if (err) {
				netdev_err(dev, "Failed to create FID=VID=%d mapping\n",
					   vid);
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				goto err_port_vid_to_fid_set;
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			}
		}
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	}
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	/* Set FID mapping according to port's mode */
	for (vid = vid_begin; vid <= vid_end; vid++) {
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		err = mlxsw_sp_port_fid_map(mlxsw_sp_port, vid);
		if (err) {
			netdev_err(dev, "Failed to map FID=%d", vid);
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			last_visited_vid = --vid;
			goto err_port_fid_map;
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		}
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	}
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	err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end,
					true, false);
	if (err) {
		netdev_err(dev, "Failed to configure flooding\n");
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		goto err_port_flood_set;
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	}

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	err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
					true, flag_untagged);
	if (err) {
		netdev_err(dev, "Unable to add VIDs %d-%d\n", vid_begin,
			   vid_end);
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		goto err_port_vlans_set;
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	}

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	old_pvid = mlxsw_sp_port->pvid;
	if (flag_pvid && old_pvid != vid_begin) {
		err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid_begin);
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		if (err) {
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			netdev_err(dev, "Unable to add PVID %d\n", vid_begin);
			goto err_port_pvid_set;
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		}
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		mlxsw_sp_port->pvid = vid_begin;
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	}

	/* Changing activity bits only if HW operation succeded */
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Elad Raz 已提交
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	for (vid = vid_begin; vid <= vid_end; vid++) {
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		set_bit(vid, mlxsw_sp_port->active_vlans);
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Elad Raz 已提交
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		if (flag_untagged)
			set_bit(vid, mlxsw_sp_port->untagged_vlans);
		else
			clear_bit(vid, mlxsw_sp_port->untagged_vlans);
	}
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	/* STP state change must be done after we set active VLANs */
	err = mlxsw_sp_port_stp_state_set(mlxsw_sp_port,
					  mlxsw_sp_port->stp_state);
	if (err) {
		netdev_err(dev, "Failed to set STP state\n");
		goto err_port_stp_state_set;
	}

	return 0;

err_port_vid_to_fid_set:
	mlxsw_sp_fid_destroy(mlxsw_sp, vid);
	return err;

err_port_stp_state_set:
	for (vid = vid_begin; vid <= vid_end; vid++)
		clear_bit(vid, mlxsw_sp_port->active_vlans);
	if (old_pvid != mlxsw_sp_port->pvid)
		mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid);
err_port_pvid_set:
	__mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, false,
				  false);
err_port_vlans_set:
	__mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end, false,
				  false);
err_port_flood_set:
	last_visited_vid = vid_end;
err_port_fid_map:
	for (vid = last_visited_vid; vid >= vid_begin; vid--)
		mlxsw_sp_port_fid_unmap(mlxsw_sp_port, vid);
	return err;
568 569 570 571 572 573
}

static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
				   const struct switchdev_obj_port_vlan *vlan,
				   struct switchdev_trans *trans)
{
574 575
	bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
	bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
576 577 578 579 580 581

	if (switchdev_trans_ph_prepare(trans))
		return 0;

	return __mlxsw_sp_port_vlans_add(mlxsw_sp_port,
					 vlan->vid_begin, vlan->vid_end,
582
					 flag_untagged, flag_pvid);
583 584
}

585
static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic)
586
{
587 588 589 590 591 592 593 594 595 596
	return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS :
			 MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY;
}

static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding)
{
	return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT :
			MLXSW_REG_SFD_OP_WRITE_REMOVE;
}

597
static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
598
				   const char *mac, u16 fid, bool adding,
599 600
				   bool dynamic)
{
601 602 603 604 605 606 607
	char *sfd_pl;
	int err;

	sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
	if (!sfd_pl)
		return -ENOMEM;

608 609
	mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
	mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
610
			      mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
611
			      local_port);
612 613 614 615 616 617 618
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
	kfree(sfd_pl);

	return err;
}

static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
619 620
				       const char *mac, u16 fid, u16 lag_vid,
				       bool adding, bool dynamic)
621 622 623 624 625 626 627 628 629 630
{
	char *sfd_pl;
	int err;

	sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
	if (!sfd_pl)
		return -ENOMEM;

	mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
	mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
631 632
				  mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
				  lag_vid, lag_id);
633
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
634 635 636 637 638 639 640 641 642 643
	kfree(sfd_pl);

	return err;
}

static int
mlxsw_sp_port_fdb_static_add(struct mlxsw_sp_port *mlxsw_sp_port,
			     const struct switchdev_obj_port_fdb *fdb,
			     struct switchdev_trans *trans)
{
644
	u16 fid = fdb->vid;
645
	u16 lag_vid = 0;
646

647 648 649
	if (switchdev_trans_ph_prepare(trans))
		return 0;

650 651 652 653
	if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
		u16 vfid = mlxsw_sp_vport_vfid_get(mlxsw_sp_port);

		fid = mlxsw_sp_vfid_to_fid(vfid);
654
		lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
655 656
	}

657 658
	if (!fid)
		fid = mlxsw_sp_port->pvid;
659 660

	if (!mlxsw_sp_port->lagged)
661 662
		return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port->mlxsw_sp,
					       mlxsw_sp_port->local_port,
663
					       fdb->addr, fid, true, false);
664 665 666
	else
		return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
						   mlxsw_sp_port->lag_id,
667 668
						   fdb->addr, fid, lag_vid,
						   true, false);
669 670 671 672 673 674 675 676 677
}

static int mlxsw_sp_port_obj_add(struct net_device *dev,
				 const struct switchdev_obj *obj,
				 struct switchdev_trans *trans)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	int err = 0;

678 679 680 681
	mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
	if (!mlxsw_sp_port)
		return -EINVAL;

682 683
	switch (obj->id) {
	case SWITCHDEV_OBJ_ID_PORT_VLAN:
684 685 686
		if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
			return 0;

687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722
		err = mlxsw_sp_port_vlans_add(mlxsw_sp_port,
					      SWITCHDEV_OBJ_PORT_VLAN(obj),
					      trans);
		break;
	case SWITCHDEV_OBJ_ID_PORT_FDB:
		err = mlxsw_sp_port_fdb_static_add(mlxsw_sp_port,
						   SWITCHDEV_OBJ_PORT_FDB(obj),
						   trans);
		break;
	default:
		err = -EOPNOTSUPP;
		break;
	}

	return err;
}

static int mlxsw_sp_port_kill_vids(struct net_device *dev, u16 vid_begin,
				   u16 vid_end)
{
	u16 vid;
	int err;

	for (vid = vid_begin; vid <= vid_end; vid++) {
		err = mlxsw_sp_port_kill_vid(dev, 0, vid);
		if (err)
			return err;
	}

	return 0;
}

static int __mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
				     u16 vid_begin, u16 vid_end, bool init)
{
	struct net_device *dev = mlxsw_sp_port->dev;
723
	u16 vid, pvid;
724 725 726 727 728 729 730 731 732
	int err;

	/* In case this is invoked with BRIDGE_FLAGS_SELF and port is
	 * not bridged, then prevent packets ingressing through the
	 * port with the specified VIDs from being trapped to CPU.
	 */
	if (!init && !mlxsw_sp_port->bridged)
		return mlxsw_sp_port_kill_vids(dev, vid_begin, vid_end);

733 734 735 736 737 738
	err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
					false, false);
	if (err) {
		netdev_err(dev, "Unable to del VIDs %d-%d\n", vid_begin,
			   vid_end);
		return err;
739 740
	}

741 742
	pvid = mlxsw_sp_port->pvid;
	if (pvid >= vid_begin && pvid <= vid_end && pvid != 1) {
743
		/* Default VLAN is always 1 */
744
		err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
745
		if (err) {
746
			netdev_err(dev, "Unable to del PVID %d\n", pvid);
747 748
			return err;
		}
749
		mlxsw_sp_port->pvid = 1;
750 751 752 753 754
	}

	if (init)
		goto out;

755 756 757 758 759 760
	err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end,
					false, false);
	if (err) {
		netdev_err(dev, "Failed to clear flooding\n");
		return err;
	}
761

762
	for (vid = vid_begin; vid <= vid_end; vid++) {
763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789
		/* Remove FID mapping in case of Virtual mode */
		err = mlxsw_sp_port_fid_unmap(mlxsw_sp_port, vid);
		if (err) {
			netdev_err(dev, "Failed to unmap FID=%d", vid);
			return err;
		}
	}

out:
	/* Changing activity bits only if HW operation succeded */
	for (vid = vid_begin; vid <= vid_end; vid++)
		clear_bit(vid, mlxsw_sp_port->active_vlans);

	return 0;
}

static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
				   const struct switchdev_obj_port_vlan *vlan)
{
	return __mlxsw_sp_port_vlans_del(mlxsw_sp_port,
					 vlan->vid_begin, vlan->vid_end, false);
}

static int
mlxsw_sp_port_fdb_static_del(struct mlxsw_sp_port *mlxsw_sp_port,
			     const struct switchdev_obj_port_fdb *fdb)
{
790
	u16 fid = fdb->vid;
791
	u16 lag_vid = 0;
792

793 794 795 796
	if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
		u16 vfid = mlxsw_sp_vport_vfid_get(mlxsw_sp_port);

		fid = mlxsw_sp_vfid_to_fid(vfid);
797
		lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
798 799
	}

800
	if (!mlxsw_sp_port->lagged)
801 802
		return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port->mlxsw_sp,
					       mlxsw_sp_port->local_port,
803
					       fdb->addr, fid,
804 805 806 807
					       false, false);
	else
		return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
						   mlxsw_sp_port->lag_id,
808
						   fdb->addr, fid, lag_vid,
809
						   false, false);
810 811 812 813 814 815 816 817
}

static int mlxsw_sp_port_obj_del(struct net_device *dev,
				 const struct switchdev_obj *obj)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	int err = 0;

818 819 820 821
	mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
	if (!mlxsw_sp_port)
		return -EINVAL;

822 823
	switch (obj->id) {
	case SWITCHDEV_OBJ_ID_PORT_VLAN:
824 825 826
		if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
			return 0;

827 828 829 830 831 832 833 834 835 836 837 838 839 840 841
		err = mlxsw_sp_port_vlans_del(mlxsw_sp_port,
					      SWITCHDEV_OBJ_PORT_VLAN(obj));
		break;
	case SWITCHDEV_OBJ_ID_PORT_FDB:
		err = mlxsw_sp_port_fdb_static_del(mlxsw_sp_port,
						   SWITCHDEV_OBJ_PORT_FDB(obj));
		break;
	default:
		err = -EOPNOTSUPP;
		break;
	}

	return err;
}

842 843 844 845 846 847 848 849 850 851 852 853 854 855
static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp,
						   u16 lag_id)
{
	struct mlxsw_sp_port *mlxsw_sp_port;
	int i;

	for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
		mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
		if (mlxsw_sp_port)
			return mlxsw_sp_port;
	}
	return NULL;
}

856 857 858 859
static int mlxsw_sp_port_fdb_dump(struct mlxsw_sp_port *mlxsw_sp_port,
				  struct switchdev_obj_port_fdb *fdb,
				  switchdev_obj_dump_cb_t *cb)
{
860
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
861
	u16 vport_vid = 0, vport_fid = 0;
862 863
	char *sfd_pl;
	char mac[ETH_ALEN];
864
	u16 fid;
865
	u8 local_port;
866
	u16 lag_id;
867 868 869 870 871 872 873 874 875
	u8 num_rec;
	int stored_err = 0;
	int i;
	int err;

	sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
	if (!sfd_pl)
		return -ENOMEM;

876 877 878 879 880 881 882 883
	if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
		u16 tmp;

		tmp = mlxsw_sp_vport_vfid_get(mlxsw_sp_port);
		vport_fid = mlxsw_sp_vfid_to_fid(tmp);
		vport_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
	}

884 885 886
	mlxsw_reg_sfd_pack(sfd_pl, MLXSW_REG_SFD_OP_QUERY_DUMP, 0);
	do {
		mlxsw_reg_sfd_num_rec_set(sfd_pl, MLXSW_REG_SFD_REC_MAX_COUNT);
887
		err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
888 889 890 891 892 893 894 895 896 897 898 899 900 901
		if (err)
			goto out;

		num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);

		/* Even in case of error, we have to run the dump to the end
		 * so the session in firmware is finished.
		 */
		if (stored_err)
			continue;

		for (i = 0; i < num_rec; i++) {
			switch (mlxsw_reg_sfd_rec_type_get(sfd_pl, i)) {
			case MLXSW_REG_SFD_REC_TYPE_UNICAST:
902
				mlxsw_reg_sfd_uc_unpack(sfd_pl, i, mac, &fid,
903 904
							&local_port);
				if (local_port == mlxsw_sp_port->local_port) {
905 906 907 908 909 910
					if (vport_fid && vport_fid != fid)
						continue;
					else if (vport_fid)
						fdb->vid = vport_vid;
					else
						fdb->vid = fid;
911 912 913 914 915 916
					ether_addr_copy(fdb->addr, mac);
					fdb->ndm_state = NUD_REACHABLE;
					err = cb(&fdb->obj);
					if (err)
						stored_err = err;
				}
917 918 919
				break;
			case MLXSW_REG_SFD_REC_TYPE_UNICAST_LAG:
				mlxsw_reg_sfd_uc_lag_unpack(sfd_pl, i,
920
							    mac, &fid, &lag_id);
921 922
				if (mlxsw_sp_port ==
				    mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id)) {
923 924 925 926 927 928
					if (vport_fid && vport_fid != fid)
						continue;
					else if (vport_fid)
						fdb->vid = vport_vid;
					else
						fdb->vid = fid;
929 930 931 932 933 934 935
					ether_addr_copy(fdb->addr, mac);
					fdb->ndm_state = NUD_REACHABLE;
					err = cb(&fdb->obj);
					if (err)
						stored_err = err;
				}
				break;
936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951
			}
		}
	} while (num_rec == MLXSW_REG_SFD_REC_MAX_COUNT);

out:
	kfree(sfd_pl);
	return stored_err ? stored_err : err;
}

static int mlxsw_sp_port_vlan_dump(struct mlxsw_sp_port *mlxsw_sp_port,
				   struct switchdev_obj_port_vlan *vlan,
				   switchdev_obj_dump_cb_t *cb)
{
	u16 vid;
	int err = 0;

952 953 954 955 956 957 958
	if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
		vlan->flags = 0;
		vlan->vid_begin = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
		vlan->vid_end = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
		return cb(&vlan->obj);
	}

959 960 961 962
	for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
		vlan->flags = 0;
		if (vid == mlxsw_sp_port->pvid)
			vlan->flags |= BRIDGE_VLAN_INFO_PVID;
E
Elad Raz 已提交
963 964
		if (test_bit(vid, mlxsw_sp_port->untagged_vlans))
			vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED;
965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980
		vlan->vid_begin = vid;
		vlan->vid_end = vid;
		err = cb(&vlan->obj);
		if (err)
			break;
	}
	return err;
}

static int mlxsw_sp_port_obj_dump(struct net_device *dev,
				  struct switchdev_obj *obj,
				  switchdev_obj_dump_cb_t *cb)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	int err = 0;

981 982 983 984
	mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
	if (!mlxsw_sp_port)
		return -EINVAL;

985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001
	switch (obj->id) {
	case SWITCHDEV_OBJ_ID_PORT_VLAN:
		err = mlxsw_sp_port_vlan_dump(mlxsw_sp_port,
					      SWITCHDEV_OBJ_PORT_VLAN(obj), cb);
		break;
	case SWITCHDEV_OBJ_ID_PORT_FDB:
		err = mlxsw_sp_port_fdb_dump(mlxsw_sp_port,
					     SWITCHDEV_OBJ_PORT_FDB(obj), cb);
		break;
	default:
		err = -EOPNOTSUPP;
		break;
	}

	return err;
}

1002
static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = {
1003 1004 1005 1006 1007 1008 1009
	.switchdev_port_attr_get	= mlxsw_sp_port_attr_get,
	.switchdev_port_attr_set	= mlxsw_sp_port_attr_set,
	.switchdev_port_obj_add		= mlxsw_sp_port_obj_add,
	.switchdev_port_obj_del		= mlxsw_sp_port_obj_del,
	.switchdev_port_obj_dump	= mlxsw_sp_port_obj_dump,
};

1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024
static void mlxsw_sp_fdb_call_notifiers(bool learning, bool learning_sync,
					bool adding, char *mac, u16 vid,
					struct net_device *dev)
{
	struct switchdev_notifier_fdb_info info;
	unsigned long notifier_type;

	if (learning && learning_sync) {
		info.addr = mac;
		info.vid = vid;
		notifier_type = adding ? SWITCHDEV_FDB_ADD : SWITCHDEV_FDB_DEL;
		call_switchdev_notifiers(notifier_type, dev, &info.info);
	}
}

1025 1026 1027 1028 1029 1030 1031
static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
					    char *sfn_pl, int rec_index,
					    bool adding)
{
	struct mlxsw_sp_port *mlxsw_sp_port;
	char mac[ETH_ALEN];
	u8 local_port;
1032
	u16 vid, fid;
1033
	bool do_notification = true;
1034 1035
	int err;

1036
	mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
1037 1038 1039
	mlxsw_sp_port = mlxsw_sp->ports[local_port];
	if (!mlxsw_sp_port) {
		dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n");
1040
		goto just_remove;
1041 1042
	}

1043 1044 1045 1046 1047 1048 1049 1050
	if (mlxsw_sp_fid_is_vfid(fid)) {
		u16 vfid = mlxsw_sp_fid_to_vfid(fid);
		struct mlxsw_sp_port *mlxsw_sp_vport;

		mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_vfid(mlxsw_sp_port,
								  vfid);
		if (!mlxsw_sp_vport) {
			netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
1051
			goto just_remove;
1052 1053 1054 1055 1056 1057 1058 1059
		}
		vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
		/* Override the physical port with the vPort. */
		mlxsw_sp_port = mlxsw_sp_vport;
	} else {
		vid = fid;
	}

1060 1061 1062
	adding = adding && mlxsw_sp_port->learning;

do_fdb_op:
1063
	err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid,
1064
				      adding, true);
1065 1066 1067 1068 1069 1070
	if (err) {
		if (net_ratelimit())
			netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
		return;
	}

1071 1072
	if (!do_notification)
		return;
1073 1074 1075
	mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning,
				    mlxsw_sp_port->learning_sync,
				    adding, mac, vid, mlxsw_sp_port->dev);
1076 1077 1078 1079 1080 1081
	return;

just_remove:
	adding = false;
	do_notification = false;
	goto do_fdb_op;
1082
}
1083

1084 1085 1086 1087 1088 1089
static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
						char *sfn_pl, int rec_index,
						bool adding)
{
	struct mlxsw_sp_port *mlxsw_sp_port;
	char mac[ETH_ALEN];
1090
	u16 lag_vid = 0;
1091
	u16 lag_id;
1092
	u16 vid, fid;
1093
	bool do_notification = true;
1094 1095
	int err;

1096
	mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id);
1097 1098 1099
	mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
	if (!mlxsw_sp_port) {
		dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n");
1100
		goto just_remove;
1101
	}
1102

1103 1104 1105 1106 1107 1108 1109 1110
	if (mlxsw_sp_fid_is_vfid(fid)) {
		u16 vfid = mlxsw_sp_fid_to_vfid(fid);
		struct mlxsw_sp_port *mlxsw_sp_vport;

		mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_vfid(mlxsw_sp_port,
								  vfid);
		if (!mlxsw_sp_vport) {
			netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
1111
			goto just_remove;
1112 1113 1114
		}

		vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
1115
		lag_vid = vid;
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		/* Override the physical port with the vPort. */
		mlxsw_sp_port = mlxsw_sp_vport;
	} else {
		vid = fid;
	}

1122 1123 1124
	adding = adding && mlxsw_sp_port->learning;

do_fdb_op:
1125
	err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
1126
					  adding, true);
1127 1128 1129 1130 1131 1132
	if (err) {
		if (net_ratelimit())
			netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
		return;
	}

1133 1134
	if (!do_notification)
		return;
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	mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning,
				    mlxsw_sp_port->learning_sync,
				    adding, mac, vid,
				    mlxsw_sp_lag_get(mlxsw_sp, lag_id)->dev);
1139 1140 1141 1142 1143 1144
	return;

just_remove:
	adding = false;
	do_notification = false;
	goto do_fdb_op;
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}

static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
					    char *sfn_pl, int rec_index)
{
	switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) {
	case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC:
		mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
						rec_index, true);
		break;
	case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC:
		mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
						rec_index, false);
		break;
1159 1160 1161 1162 1163 1164 1165 1166
	case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG:
		mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
						    rec_index, true);
		break;
	case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG:
		mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
						    rec_index, false);
		break;
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	}
}

static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp)
{
	schedule_delayed_work(&mlxsw_sp->fdb_notify.dw,
			      msecs_to_jiffies(mlxsw_sp->fdb_notify.interval));
}

static void mlxsw_sp_fdb_notify_work(struct work_struct *work)
{
	struct mlxsw_sp *mlxsw_sp;
	char *sfn_pl;
	u8 num_rec;
	int i;
	int err;

	sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL);
	if (!sfn_pl)
		return;

	mlxsw_sp = container_of(work, struct mlxsw_sp, fdb_notify.dw.work);

	do {
		mlxsw_reg_sfn_pack(sfn_pl);
		err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl);
		if (err) {
			dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n");
			break;
		}
		num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl);
		for (i = 0; i < num_rec; i++)
			mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i);

	} while (num_rec);

	kfree(sfn_pl);
	mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
}

static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
{
	int err;

	err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n");
		return err;
	}
	INIT_DELAYED_WORK(&mlxsw_sp->fdb_notify.dw, mlxsw_sp_fdb_notify_work);
	mlxsw_sp->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL;
	mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
	return 0;
}

static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
{
	cancel_delayed_work_sync(&mlxsw_sp->fdb_notify.dw);
}

static void mlxsw_sp_fids_fini(struct mlxsw_sp *mlxsw_sp)
{
	u16 fid;

	for_each_set_bit(fid, mlxsw_sp->active_fids, VLAN_N_VID)
		mlxsw_sp_fid_destroy(mlxsw_sp, fid);
}

int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
{
	return mlxsw_sp_fdb_init(mlxsw_sp);
}

void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp)
{
	mlxsw_sp_fdb_fini(mlxsw_sp);
	mlxsw_sp_fids_fini(mlxsw_sp);
}

int mlxsw_sp_port_vlan_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
	struct net_device *dev = mlxsw_sp_port->dev;
	int err;

	/* Allow only untagged packets to ingress and tag them internally
	 * with VID 1.
	 */
	mlxsw_sp_port->pvid = 1;
E
Elad Raz 已提交
1255 1256
	err = __mlxsw_sp_port_vlans_del(mlxsw_sp_port, 0, VLAN_N_VID - 1,
					true);
1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279
	if (err) {
		netdev_err(dev, "Unable to init VLANs\n");
		return err;
	}

	/* Add implicit VLAN interface in the device, so that untagged
	 * packets will be classified to the default vFID.
	 */
	err = mlxsw_sp_port_add_vid(dev, 0, 1);
	if (err)
		netdev_err(dev, "Failed to configure default vFID\n");

	return err;
}

void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
	mlxsw_sp_port->dev->switchdev_ops = &mlxsw_sp_port_switchdev_ops;
}

void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port)
{
}