spectrum.c 103.2 KB
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/*
 * drivers/net/ethernet/mellanox/mlxsw/spectrum.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/module.h>
#include <linux/types.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.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 <linux/bitops.h>
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#include <linux/list.h>
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#include <linux/notifier.h>
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#include <linux/dcbnl.h>
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#include <linux/inetdevice.h>
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#include <net/switchdev.h>
#include <generated/utsrelease.h>

#include "spectrum.h"
#include "core.h"
#include "reg.h"
#include "port.h"
#include "trap.h"
#include "txheader.h"

static const char mlxsw_sp_driver_name[] = "mlxsw_spectrum";
static const char mlxsw_sp_driver_version[] = "1.0";

/* tx_hdr_version
 * Tx header version.
 * Must be set to 1.
 */
MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4);

/* tx_hdr_ctl
 * Packet control type.
 * 0 - Ethernet control (e.g. EMADs, LACP)
 * 1 - Ethernet data
 */
MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2);

/* tx_hdr_proto
 * Packet protocol type. Must be set to 1 (Ethernet).
 */
MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3);

/* tx_hdr_rx_is_router
 * Packet is sent from the router. Valid for data packets only.
 */
MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1);

/* tx_hdr_fid_valid
 * Indicates if the 'fid' field is valid and should be used for
 * forwarding lookup. Valid for data packets only.
 */
MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1);

/* tx_hdr_swid
 * Switch partition ID. Must be set to 0.
 */
MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3);

/* tx_hdr_control_tclass
 * Indicates if the packet should use the control TClass and not one
 * of the data TClasses.
 */
MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1);

/* tx_hdr_etclass
 * Egress TClass to be used on the egress device on the egress port.
 */
MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4);

/* tx_hdr_port_mid
 * Destination local port for unicast packets.
 * Destination multicast ID for multicast packets.
 *
 * Control packets are directed to a specific egress port, while data
 * packets are transmitted through the CPU port (0) into the switch partition,
 * where forwarding rules are applied.
 */
MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16);

/* tx_hdr_fid
 * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is
 * set, otherwise calculated based on the packet's VID using VID to FID mapping.
 * Valid for data packets only.
 */
MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16);

/* tx_hdr_type
 * 0 - Data packets
 * 6 - Control packets
 */
MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4);

static void mlxsw_sp_txhdr_construct(struct sk_buff *skb,
				     const struct mlxsw_tx_info *tx_info)
{
	char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN);

	memset(txhdr, 0, MLXSW_TXHDR_LEN);

	mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1);
	mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL);
	mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH);
	mlxsw_tx_hdr_swid_set(txhdr, 0);
	mlxsw_tx_hdr_control_tclass_set(txhdr, 1);
	mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port);
	mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL);
}

static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp)
{
	char spad_pl[MLXSW_REG_SPAD_LEN];
	int err;

	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl);
	if (err)
		return err;
	mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac);
	return 0;
}

static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port,
					  bool is_up)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char paos_pl[MLXSW_REG_PAOS_LEN];

	mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port,
			    is_up ? MLXSW_PORT_ADMIN_STATUS_UP :
			    MLXSW_PORT_ADMIN_STATUS_DOWN);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl);
}

static int mlxsw_sp_port_oper_status_get(struct mlxsw_sp_port *mlxsw_sp_port,
					 bool *p_is_up)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char paos_pl[MLXSW_REG_PAOS_LEN];
	u8 oper_status;
	int err;

	mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port, 0);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(paos), paos_pl);
	if (err)
		return err;
	oper_status = mlxsw_reg_paos_oper_status_get(paos_pl);
	*p_is_up = oper_status == MLXSW_PORT_ADMIN_STATUS_UP ? true : false;
	return 0;
}

static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port,
				      unsigned char *addr)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char ppad_pl[MLXSW_REG_PPAD_LEN];

	mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port);
	mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl);
}

static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	unsigned char *addr = mlxsw_sp_port->dev->dev_addr;

	ether_addr_copy(addr, mlxsw_sp->base_mac);
	addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port;
	return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr);
}

static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char pmtu_pl[MLXSW_REG_PMTU_LEN];
	int max_mtu;
	int err;

	mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
	mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
	if (err)
		return err;
	max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);

	if (mtu > max_mtu)
		return -EINVAL;

	mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
}

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static int __mlxsw_sp_port_swid_set(struct mlxsw_sp *mlxsw_sp, u8 local_port,
				    u8 swid)
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{
	char pspa_pl[MLXSW_REG_PSPA_LEN];

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	mlxsw_reg_pspa_pack(pspa_pl, swid, local_port);
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	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl);
}

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static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;

	return __mlxsw_sp_port_swid_set(mlxsw_sp, mlxsw_sp_port->local_port,
					swid);
}

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static int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port,
				     bool enable)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char svpe_pl[MLXSW_REG_SVPE_LEN];

	mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl);
}

int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port,
				 enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid,
				 u16 vid)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char svfa_pl[MLXSW_REG_SVFA_LEN];

	mlxsw_reg_svfa_pack(svfa_pl, mlxsw_sp_port->local_port, mt, valid,
			    fid, vid);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl);
}

static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
					  u16 vid, bool learn_enable)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char *spvmlr_pl;
	int err;

	spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL);
	if (!spvmlr_pl)
		return -ENOMEM;
	mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid, vid,
			      learn_enable);
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl);
	kfree(spvmlr_pl);
	return err;
}

static int
mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char sspr_pl[MLXSW_REG_SSPR_LEN];

	mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl);
}

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static int mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp,
					 u8 local_port, u8 *p_module,
					 u8 *p_width, u8 *p_lane)
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{
	char pmlp_pl[MLXSW_REG_PMLP_LEN];
	int err;

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	mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
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	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
	if (err)
		return err;
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	*p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
	*p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
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	*p_lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0);
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	return 0;
}

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static int mlxsw_sp_port_module_map(struct mlxsw_sp *mlxsw_sp, u8 local_port,
				    u8 module, u8 width, u8 lane)
{
	char pmlp_pl[MLXSW_REG_PMLP_LEN];
	int i;

	mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
	mlxsw_reg_pmlp_width_set(pmlp_pl, width);
	for (i = 0; i < width; i++) {
		mlxsw_reg_pmlp_module_set(pmlp_pl, i, module);
		mlxsw_reg_pmlp_tx_lane_set(pmlp_pl, i, lane + i);  /* Rx & Tx */
	}

	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
}

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static int mlxsw_sp_port_module_unmap(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
	char pmlp_pl[MLXSW_REG_PMLP_LEN];

	mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
	mlxsw_reg_pmlp_width_set(pmlp_pl, 0);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
}

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static int mlxsw_sp_port_open(struct net_device *dev)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	int err;

	err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
	if (err)
		return err;
	netif_start_queue(dev);
	return 0;
}

static int mlxsw_sp_port_stop(struct net_device *dev)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);

	netif_stop_queue(dev);
	return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
}

static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb,
				      struct net_device *dev)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
	const struct mlxsw_tx_info tx_info = {
		.local_port = mlxsw_sp_port->local_port,
		.is_emad = false,
	};
	u64 len;
	int err;

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	if (mlxsw_core_skb_transmit_busy(mlxsw_sp->core, &tx_info))
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		return NETDEV_TX_BUSY;

	if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) {
		struct sk_buff *skb_orig = skb;

		skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN);
		if (!skb) {
			this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
			dev_kfree_skb_any(skb_orig);
			return NETDEV_TX_OK;
		}
	}

	if (eth_skb_pad(skb)) {
		this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
		return NETDEV_TX_OK;
	}

	mlxsw_sp_txhdr_construct(skb, &tx_info);
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	/* TX header is consumed by HW on the way so we shouldn't count its
	 * bytes as being sent.
	 */
	len = skb->len - MLXSW_TXHDR_LEN;

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	/* Due to a race we might fail here because of a full queue. In that
	 * unlikely case we simply drop the packet.
	 */
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	err = mlxsw_core_skb_transmit(mlxsw_sp->core, skb, &tx_info);
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	if (!err) {
		pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
		u64_stats_update_begin(&pcpu_stats->syncp);
		pcpu_stats->tx_packets++;
		pcpu_stats->tx_bytes += len;
		u64_stats_update_end(&pcpu_stats->syncp);
	} else {
		this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
		dev_kfree_skb_any(skb);
	}
	return NETDEV_TX_OK;
}

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static void mlxsw_sp_set_rx_mode(struct net_device *dev)
{
}

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static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct sockaddr *addr = p;
	int err;

	if (!is_valid_ether_addr(addr->sa_data))
		return -EADDRNOTAVAIL;

	err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data);
	if (err)
		return err;
	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
	return 0;
}

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static void mlxsw_sp_pg_buf_pack(char *pbmc_pl, int pg_index, int mtu,
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				 bool pause_en, bool pfc_en, u16 delay)
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{
	u16 pg_size = 2 * MLXSW_SP_BYTES_TO_CELLS(mtu);
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	delay = pfc_en ? mlxsw_sp_pfc_delay_get(mtu, delay) :
			 MLXSW_SP_PAUSE_DELAY;
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	if (pause_en || pfc_en)
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		mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl, pg_index,
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						    pg_size + delay, pg_size);
	else
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		mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, pg_index, pg_size);
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}

int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu,
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				 u8 *prio_tc, bool pause_en,
				 struct ieee_pfc *my_pfc)
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{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
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	u8 pfc_en = !!my_pfc ? my_pfc->pfc_en : 0;
	u16 delay = !!my_pfc ? my_pfc->delay : 0;
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	char pbmc_pl[MLXSW_REG_PBMC_LEN];
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	int i, j, err;
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	mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0, 0);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
	if (err)
		return err;
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	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		bool configure = false;
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		bool pfc = false;
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		for (j = 0; j < IEEE_8021QAZ_MAX_TCS; j++) {
			if (prio_tc[j] == i) {
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				pfc = pfc_en & BIT(j);
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				configure = true;
				break;
			}
		}

		if (!configure)
			continue;
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		mlxsw_sp_pg_buf_pack(pbmc_pl, i, mtu, pause_en, pfc, delay);
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	}

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	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
}

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static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port,
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				      int mtu, bool pause_en)
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{
	u8 def_prio_tc[IEEE_8021QAZ_MAX_TCS] = {0};
	bool dcb_en = !!mlxsw_sp_port->dcb.ets;
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	struct ieee_pfc *my_pfc;
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	u8 *prio_tc;

	prio_tc = dcb_en ? mlxsw_sp_port->dcb.ets->prio_tc : def_prio_tc;
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	my_pfc = dcb_en ? mlxsw_sp_port->dcb.pfc : NULL;
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	return __mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, prio_tc,
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					    pause_en, my_pfc);
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}

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static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
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	bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
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	int err;

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	err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, pause_en);
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	if (err)
		return err;
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	err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu);
	if (err)
		goto err_port_mtu_set;
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	dev->mtu = mtu;
	return 0;
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err_port_mtu_set:
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	mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
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	return err;
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}

static struct rtnl_link_stats64 *
mlxsw_sp_port_get_stats64(struct net_device *dev,
			  struct rtnl_link_stats64 *stats)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp_port_pcpu_stats *p;
	u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
	u32 tx_dropped = 0;
	unsigned int start;
	int i;

	for_each_possible_cpu(i) {
		p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i);
		do {
			start = u64_stats_fetch_begin_irq(&p->syncp);
			rx_packets	= p->rx_packets;
			rx_bytes	= p->rx_bytes;
			tx_packets	= p->tx_packets;
			tx_bytes	= p->tx_bytes;
		} while (u64_stats_fetch_retry_irq(&p->syncp, start));

		stats->rx_packets	+= rx_packets;
		stats->rx_bytes		+= rx_bytes;
		stats->tx_packets	+= tx_packets;
		stats->tx_bytes		+= tx_bytes;
		/* tx_dropped is u32, updated without syncp protection. */
		tx_dropped	+= p->tx_dropped;
	}
	stats->tx_dropped	= tx_dropped;
	return stats;
}

int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin,
			   u16 vid_end, bool is_member, bool untagged)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char *spvm_pl;
	int err;

	spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL);
	if (!spvm_pl)
		return -ENOMEM;

	mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port,	vid_begin,
			    vid_end, is_member, untagged);
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl);
	kfree(spvm_pl);
	return err;
}

static int mlxsw_sp_port_vp_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
{
	enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
	u16 vid, last_visited_vid;
	int err;

	for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
		err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, vid,
						   vid);
		if (err) {
			last_visited_vid = vid;
			goto err_port_vid_to_fid_set;
		}
	}

	err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true);
	if (err) {
		last_visited_vid = VLAN_N_VID;
		goto err_port_vid_to_fid_set;
	}

	return 0;

err_port_vid_to_fid_set:
	for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
		mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, vid,
					     vid);
	return err;
}

static int mlxsw_sp_port_vlan_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
{
	enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
	u16 vid;
	int err;

	err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);
	if (err)
		return err;

	for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
		err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false,
						   vid, vid);
		if (err)
			return err;
	}

	return 0;
}

624
static struct mlxsw_sp_port *
625
mlxsw_sp_port_vport_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
626 627 628 629 630 631 632 633 634 635 636 637 638 639 640
{
	struct mlxsw_sp_port *mlxsw_sp_vport;

	mlxsw_sp_vport = kzalloc(sizeof(*mlxsw_sp_vport), GFP_KERNEL);
	if (!mlxsw_sp_vport)
		return NULL;

	/* dev will be set correctly after the VLAN device is linked
	 * with the real device. In case of bridge SELF invocation, dev
	 * will remain as is.
	 */
	mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
	mlxsw_sp_vport->mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	mlxsw_sp_vport->local_port = mlxsw_sp_port->local_port;
	mlxsw_sp_vport->stp_state = BR_STATE_FORWARDING;
641 642
	mlxsw_sp_vport->lagged = mlxsw_sp_port->lagged;
	mlxsw_sp_vport->lag_id = mlxsw_sp_port->lag_id;
643
	mlxsw_sp_vport->vport.vid = vid;
644 645 646 647 648 649 650 651 652 653 654 655

	list_add(&mlxsw_sp_vport->vport.list, &mlxsw_sp_port->vports_list);

	return mlxsw_sp_vport;
}

static void mlxsw_sp_port_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_vport)
{
	list_del(&mlxsw_sp_vport->vport.list);
	kfree(mlxsw_sp_vport);
}

656 657 658 659
int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto,
			  u16 vid)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
660
	struct mlxsw_sp_port *mlxsw_sp_vport;
661
	bool untagged = vid == 1;
662 663 664 665 666 667 668 669
	int err;

	/* VLAN 0 is added to HW filter when device goes up, but it is
	 * reserved in our case, so simply return.
	 */
	if (!vid)
		return 0;

670
	if (mlxsw_sp_port_vport_find(mlxsw_sp_port, vid)) {
671 672 673 674
		netdev_warn(dev, "VID=%d already configured\n", vid);
		return 0;
	}

675
	mlxsw_sp_vport = mlxsw_sp_port_vport_create(mlxsw_sp_port, vid);
676 677
	if (!mlxsw_sp_vport) {
		netdev_err(dev, "Failed to create vPort for VID=%d\n", vid);
678
		return -ENOMEM;
679 680 681 682 683 684
	}

	/* When adding the first VLAN interface on a bridged port we need to
	 * transition all the active 802.1Q bridge VLANs to use explicit
	 * {Port, VID} to FID mappings and set the port's mode to Virtual mode.
	 */
685
	if (list_is_singular(&mlxsw_sp_port->vports_list)) {
686 687 688
		err = mlxsw_sp_port_vp_mode_trans(mlxsw_sp_port);
		if (err) {
			netdev_err(dev, "Failed to set to Virtual mode\n");
689
			goto err_port_vp_mode_trans;
690 691 692
		}
	}

693
	err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false);
694 695 696 697 698
	if (err) {
		netdev_err(dev, "Failed to disable learning for VID=%d\n", vid);
		goto err_port_vid_learning_set;
	}

699
	err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, untagged);
700 701 702 703 704 705 706 707 708
	if (err) {
		netdev_err(dev, "Failed to set VLAN membership for VID=%d\n",
			   vid);
		goto err_port_add_vid;
	}

	return 0;

err_port_add_vid:
709
	mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
710
err_port_vid_learning_set:
711 712 713 714
	if (list_is_singular(&mlxsw_sp_port->vports_list))
		mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
err_port_vp_mode_trans:
	mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);
715 716 717
	return err;
}

718 719
static int mlxsw_sp_port_kill_vid(struct net_device *dev,
				  __be16 __always_unused proto, u16 vid)
720 721
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
722
	struct mlxsw_sp_port *mlxsw_sp_vport;
723
	struct mlxsw_sp_fid *f;
724 725 726 727 728 729 730 731
	int err;

	/* VLAN 0 is removed from HW filter when device goes down, but
	 * it is reserved in our case, so simply return.
	 */
	if (!vid)
		return 0;

732 733
	mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
	if (!mlxsw_sp_vport) {
734 735 736 737
		netdev_warn(dev, "VID=%d does not exist\n", vid);
		return 0;
	}

738
	err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false);
739 740 741 742 743 744
	if (err) {
		netdev_err(dev, "Failed to set VLAN membership for VID=%d\n",
			   vid);
		return err;
	}

745
	err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
746 747 748 749 750
	if (err) {
		netdev_err(dev, "Failed to enable learning for VID=%d\n", vid);
		return err;
	}

751 752 753 754 755 756
	/* Drop FID reference. If this was the last reference the
	 * resources will be freed.
	 */
	f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
	if (f && !WARN_ON(!f->leave))
		f->leave(mlxsw_sp_vport);
757 758 759 760 761

	/* When removing the last VLAN interface on a bridged port we need to
	 * transition all active 802.1Q bridge VLANs to use VID to FID
	 * mappings and set port's mode to VLAN mode.
	 */
762
	if (list_is_singular(&mlxsw_sp_port->vports_list)) {
763 764 765 766 767 768 769
		err = mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
		if (err) {
			netdev_err(dev, "Failed to set to VLAN mode\n");
			return err;
		}
	}

770 771
	mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);

772 773 774
	return 0;
}

775 776 777 778
static int mlxsw_sp_port_get_phys_port_name(struct net_device *dev, char *name,
					    size_t len)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
779 780 781
	u8 module = mlxsw_sp_port->mapping.module;
	u8 width = mlxsw_sp_port->mapping.width;
	u8 lane = mlxsw_sp_port->mapping.lane;
782 783 784 785 786 787 788 789 790 791 792 793 794 795
	int err;

	if (!mlxsw_sp_port->split)
		err = snprintf(name, len, "p%d", module + 1);
	else
		err = snprintf(name, len, "p%ds%d", module + 1,
			       lane / width);

	if (err >= len)
		return -EINVAL;

	return 0;
}

796 797 798 799
static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
	.ndo_open		= mlxsw_sp_port_open,
	.ndo_stop		= mlxsw_sp_port_stop,
	.ndo_start_xmit		= mlxsw_sp_port_xmit,
800
	.ndo_set_rx_mode	= mlxsw_sp_set_rx_mode,
801 802 803 804 805 806 807 808 809 810 811
	.ndo_set_mac_address	= mlxsw_sp_port_set_mac_address,
	.ndo_change_mtu		= mlxsw_sp_port_change_mtu,
	.ndo_get_stats64	= mlxsw_sp_port_get_stats64,
	.ndo_vlan_rx_add_vid	= mlxsw_sp_port_add_vid,
	.ndo_vlan_rx_kill_vid	= mlxsw_sp_port_kill_vid,
	.ndo_fdb_add		= switchdev_port_fdb_add,
	.ndo_fdb_del		= switchdev_port_fdb_del,
	.ndo_fdb_dump		= switchdev_port_fdb_dump,
	.ndo_bridge_setlink	= switchdev_port_bridge_setlink,
	.ndo_bridge_getlink	= switchdev_port_bridge_getlink,
	.ndo_bridge_dellink	= switchdev_port_bridge_dellink,
812
	.ndo_get_phys_port_name	= mlxsw_sp_port_get_phys_port_name,
813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832
};

static void mlxsw_sp_port_get_drvinfo(struct net_device *dev,
				      struct ethtool_drvinfo *drvinfo)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;

	strlcpy(drvinfo->driver, mlxsw_sp_driver_name, sizeof(drvinfo->driver));
	strlcpy(drvinfo->version, mlxsw_sp_driver_version,
		sizeof(drvinfo->version));
	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
		 "%d.%d.%d",
		 mlxsw_sp->bus_info->fw_rev.major,
		 mlxsw_sp->bus_info->fw_rev.minor,
		 mlxsw_sp->bus_info->fw_rev.subminor);
	strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name,
		sizeof(drvinfo->bus_info));
}

833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861
static void mlxsw_sp_port_get_pauseparam(struct net_device *dev,
					 struct ethtool_pauseparam *pause)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);

	pause->rx_pause = mlxsw_sp_port->link.rx_pause;
	pause->tx_pause = mlxsw_sp_port->link.tx_pause;
}

static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port *mlxsw_sp_port,
				   struct ethtool_pauseparam *pause)
{
	char pfcc_pl[MLXSW_REG_PFCC_LEN];

	mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port);
	mlxsw_reg_pfcc_pprx_set(pfcc_pl, pause->rx_pause);
	mlxsw_reg_pfcc_pptx_set(pfcc_pl, pause->tx_pause);

	return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc),
			       pfcc_pl);
}

static int mlxsw_sp_port_set_pauseparam(struct net_device *dev,
					struct ethtool_pauseparam *pause)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	bool pause_en = pause->tx_pause || pause->rx_pause;
	int err;

862 863 864 865 866
	if (mlxsw_sp_port->dcb.pfc && mlxsw_sp_port->dcb.pfc->pfc_en) {
		netdev_err(dev, "PFC already enabled on port\n");
		return -EINVAL;
	}

867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894
	if (pause->autoneg) {
		netdev_err(dev, "PAUSE frames autonegotiation isn't supported\n");
		return -EINVAL;
	}

	err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
	if (err) {
		netdev_err(dev, "Failed to configure port's headroom\n");
		return err;
	}

	err = mlxsw_sp_port_pause_set(mlxsw_sp_port, pause);
	if (err) {
		netdev_err(dev, "Failed to set PAUSE parameters\n");
		goto err_port_pause_configure;
	}

	mlxsw_sp_port->link.rx_pause = pause->rx_pause;
	mlxsw_sp_port->link.tx_pause = pause->tx_pause;

	return 0;

err_port_pause_configure:
	pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
	mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
	return err;
}

895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997
struct mlxsw_sp_port_hw_stats {
	char str[ETH_GSTRING_LEN];
	u64 (*getter)(char *payload);
};

static const struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = {
	{
		.str = "a_frames_transmitted_ok",
		.getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get,
	},
	{
		.str = "a_frames_received_ok",
		.getter = mlxsw_reg_ppcnt_a_frames_received_ok_get,
	},
	{
		.str = "a_frame_check_sequence_errors",
		.getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get,
	},
	{
		.str = "a_alignment_errors",
		.getter = mlxsw_reg_ppcnt_a_alignment_errors_get,
	},
	{
		.str = "a_octets_transmitted_ok",
		.getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get,
	},
	{
		.str = "a_octets_received_ok",
		.getter = mlxsw_reg_ppcnt_a_octets_received_ok_get,
	},
	{
		.str = "a_multicast_frames_xmitted_ok",
		.getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get,
	},
	{
		.str = "a_broadcast_frames_xmitted_ok",
		.getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get,
	},
	{
		.str = "a_multicast_frames_received_ok",
		.getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get,
	},
	{
		.str = "a_broadcast_frames_received_ok",
		.getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get,
	},
	{
		.str = "a_in_range_length_errors",
		.getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get,
	},
	{
		.str = "a_out_of_range_length_field",
		.getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get,
	},
	{
		.str = "a_frame_too_long_errors",
		.getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get,
	},
	{
		.str = "a_symbol_error_during_carrier",
		.getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get,
	},
	{
		.str = "a_mac_control_frames_transmitted",
		.getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get,
	},
	{
		.str = "a_mac_control_frames_received",
		.getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get,
	},
	{
		.str = "a_unsupported_opcodes_received",
		.getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get,
	},
	{
		.str = "a_pause_mac_ctrl_frames_received",
		.getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get,
	},
	{
		.str = "a_pause_mac_ctrl_frames_xmitted",
		.getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get,
	},
};

#define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats)

static void mlxsw_sp_port_get_strings(struct net_device *dev,
				      u32 stringset, u8 *data)
{
	u8 *p = data;
	int i;

	switch (stringset) {
	case ETH_SS_STATS:
		for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) {
			memcpy(p, mlxsw_sp_port_hw_stats[i].str,
			       ETH_GSTRING_LEN);
			p += ETH_GSTRING_LEN;
		}
		break;
	}
}

998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020
static int mlxsw_sp_port_set_phys_id(struct net_device *dev,
				     enum ethtool_phys_id_state state)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char mlcr_pl[MLXSW_REG_MLCR_LEN];
	bool active;

	switch (state) {
	case ETHTOOL_ID_ACTIVE:
		active = true;
		break;
	case ETHTOOL_ID_INACTIVE:
		active = false;
		break;
	default:
		return -EOPNOTSUPP;
	}

	mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl);
}

1021 1022 1023 1024 1025 1026 1027 1028 1029
static void mlxsw_sp_port_get_stats(struct net_device *dev,
				    struct ethtool_stats *stats, u64 *data)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
	int i;
	int err;

1030 1031
	mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port,
			     MLXSW_REG_PPCNT_IEEE_8023_CNT, 0);
1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl);
	for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++)
		data[i] = !err ? mlxsw_sp_port_hw_stats[i].getter(ppcnt_pl) : 0;
}

static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
		return MLXSW_SP_PORT_HW_STATS_LEN;
	default:
		return -EOPNOTSUPP;
	}
}

struct mlxsw_sp_port_link_mode {
	u32 mask;
	u32 supported;
	u32 advertised;
	u32 speed;
};

static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = {
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100BASE_T,
		.supported	= SUPPORTED_100baseT_Full,
		.advertised	= ADVERTISED_100baseT_Full,
		.speed		= 100,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100BASE_TX,
		.speed		= 100,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_SGMII |
				  MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX,
		.supported	= SUPPORTED_1000baseKX_Full,
		.advertised	= ADVERTISED_1000baseKX_Full,
		.speed		= 1000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T,
		.supported	= SUPPORTED_10000baseT_Full,
		.advertised	= ADVERTISED_10000baseT_Full,
		.speed		= 10000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 |
				  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4,
		.supported	= SUPPORTED_10000baseKX4_Full,
		.advertised	= ADVERTISED_10000baseKX4_Full,
		.speed		= 10000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
				  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
				  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
				  MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR,
		.supported	= SUPPORTED_10000baseKR_Full,
		.advertised	= ADVERTISED_10000baseKR_Full,
		.speed		= 10000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2,
		.supported	= SUPPORTED_20000baseKR2_Full,
		.advertised	= ADVERTISED_20000baseKR2_Full,
		.speed		= 20000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4,
		.supported	= SUPPORTED_40000baseCR4_Full,
		.advertised	= ADVERTISED_40000baseCR4_Full,
		.speed		= 40000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4,
		.supported	= SUPPORTED_40000baseKR4_Full,
		.advertised	= ADVERTISED_40000baseKR4_Full,
		.speed		= 40000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4,
		.supported	= SUPPORTED_40000baseSR4_Full,
		.advertised	= ADVERTISED_40000baseSR4_Full,
		.speed		= 40000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4,
		.supported	= SUPPORTED_40000baseLR4_Full,
		.advertised	= ADVERTISED_40000baseLR4_Full,
		.speed		= 40000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR |
				  MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR |
				  MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR,
		.speed		= 25000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR4 |
				  MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2 |
				  MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2,
		.speed		= 50000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
		.supported	= SUPPORTED_56000baseKR4_Full,
		.advertised	= ADVERTISED_56000baseKR4_Full,
		.speed		= 56000,
	},
	{
		.mask		= MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4 |
				  MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
				  MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
				  MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4,
		.speed		= 100000,
	},
};

#define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode)

static u32 mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto)
{
	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
			      MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_SGMII))
		return SUPPORTED_FIBRE;

	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
			      MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX))
		return SUPPORTED_Backplane;
	return 0;
}

static u32 mlxsw_sp_from_ptys_supported_link(u32 ptys_eth_proto)
{
	u32 modes = 0;
	int i;

	for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
		if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
			modes |= mlxsw_sp_port_link_mode[i].supported;
	}
	return modes;
}

static u32 mlxsw_sp_from_ptys_advert_link(u32 ptys_eth_proto)
{
	u32 modes = 0;
	int i;

	for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
		if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
			modes |= mlxsw_sp_port_link_mode[i].advertised;
	}
	return modes;
}

static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto,
					    struct ethtool_cmd *cmd)
{
	u32 speed = SPEED_UNKNOWN;
	u8 duplex = DUPLEX_UNKNOWN;
	int i;

	if (!carrier_ok)
		goto out;

	for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
		if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) {
			speed = mlxsw_sp_port_link_mode[i].speed;
			duplex = DUPLEX_FULL;
			break;
		}
	}
out:
	ethtool_cmd_speed_set(cmd, speed);
	cmd->duplex = duplex;
}

static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto)
{
	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_SGMII))
		return PORT_FIBRE;

	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4))
		return PORT_DA;

	if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
			      MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
			      MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
			      MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4))
		return PORT_NONE;

	return PORT_OTHER;
}

static int mlxsw_sp_port_get_settings(struct net_device *dev,
				      struct ethtool_cmd *cmd)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char ptys_pl[MLXSW_REG_PTYS_LEN];
	u32 eth_proto_cap;
	u32 eth_proto_admin;
	u32 eth_proto_oper;
	int err;

	mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
	if (err) {
		netdev_err(dev, "Failed to get proto");
		return err;
	}
	mlxsw_reg_ptys_unpack(ptys_pl, &eth_proto_cap,
			      &eth_proto_admin, &eth_proto_oper);

	cmd->supported = mlxsw_sp_from_ptys_supported_port(eth_proto_cap) |
			 mlxsw_sp_from_ptys_supported_link(eth_proto_cap) |
			 SUPPORTED_Pause | SUPPORTED_Asym_Pause;
	cmd->advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_admin);
	mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev),
					eth_proto_oper, cmd);

	eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap;
	cmd->port = mlxsw_sp_port_connector_port(eth_proto_oper);
	cmd->lp_advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_oper);

	cmd->transceiver = XCVR_INTERNAL;
	return 0;
}

static u32 mlxsw_sp_to_ptys_advert_link(u32 advertising)
{
	u32 ptys_proto = 0;
	int i;

	for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
		if (advertising & mlxsw_sp_port_link_mode[i].advertised)
			ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
	}
	return ptys_proto;
}

static u32 mlxsw_sp_to_ptys_speed(u32 speed)
{
	u32 ptys_proto = 0;
	int i;

	for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
		if (speed == mlxsw_sp_port_link_mode[i].speed)
			ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
	}
	return ptys_proto;
}

1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310
static u32 mlxsw_sp_to_ptys_upper_speed(u32 upper_speed)
{
	u32 ptys_proto = 0;
	int i;

	for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
		if (mlxsw_sp_port_link_mode[i].speed <= upper_speed)
			ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
	}
	return ptys_proto;
}

1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378
static int mlxsw_sp_port_set_settings(struct net_device *dev,
				      struct ethtool_cmd *cmd)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char ptys_pl[MLXSW_REG_PTYS_LEN];
	u32 speed;
	u32 eth_proto_new;
	u32 eth_proto_cap;
	u32 eth_proto_admin;
	bool is_up;
	int err;

	speed = ethtool_cmd_speed(cmd);

	eth_proto_new = cmd->autoneg == AUTONEG_ENABLE ?
		mlxsw_sp_to_ptys_advert_link(cmd->advertising) :
		mlxsw_sp_to_ptys_speed(speed);

	mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
	if (err) {
		netdev_err(dev, "Failed to get proto");
		return err;
	}
	mlxsw_reg_ptys_unpack(ptys_pl, &eth_proto_cap, &eth_proto_admin, NULL);

	eth_proto_new = eth_proto_new & eth_proto_cap;
	if (!eth_proto_new) {
		netdev_err(dev, "Not supported proto admin requested");
		return -EINVAL;
	}
	if (eth_proto_new == eth_proto_admin)
		return 0;

	mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, eth_proto_new);
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
	if (err) {
		netdev_err(dev, "Failed to set proto admin");
		return err;
	}

	err = mlxsw_sp_port_oper_status_get(mlxsw_sp_port, &is_up);
	if (err) {
		netdev_err(dev, "Failed to get oper status");
		return err;
	}
	if (!is_up)
		return 0;

	err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
	if (err) {
		netdev_err(dev, "Failed to set admin status");
		return err;
	}

	err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
	if (err) {
		netdev_err(dev, "Failed to set admin status");
		return err;
	}

	return 0;
}

static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = {
	.get_drvinfo		= mlxsw_sp_port_get_drvinfo,
	.get_link		= ethtool_op_get_link,
1379 1380
	.get_pauseparam		= mlxsw_sp_port_get_pauseparam,
	.set_pauseparam		= mlxsw_sp_port_set_pauseparam,
1381
	.get_strings		= mlxsw_sp_port_get_strings,
1382
	.set_phys_id		= mlxsw_sp_port_set_phys_id,
1383 1384 1385 1386 1387 1388
	.get_ethtool_stats	= mlxsw_sp_port_get_stats,
	.get_sset_count		= mlxsw_sp_port_get_sset_count,
	.get_settings		= mlxsw_sp_port_get_settings,
	.set_settings		= mlxsw_sp_port_set_settings,
};

1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402
static int
mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	u32 upper_speed = MLXSW_SP_PORT_BASE_SPEED * width;
	char ptys_pl[MLXSW_REG_PTYS_LEN];
	u32 eth_proto_admin;

	eth_proto_admin = mlxsw_sp_to_ptys_upper_speed(upper_speed);
	mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port,
			    eth_proto_admin);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
}

1403 1404 1405
int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
			  enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
			  bool dwrr, u8 dwrr_weight)
1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char qeec_pl[MLXSW_REG_QEEC_LEN];

	mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
			    next_index);
	mlxsw_reg_qeec_de_set(qeec_pl, true);
	mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr);
	mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
}

1418 1419 1420
int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port,
				  enum mlxsw_reg_qeec_hr hr, u8 index,
				  u8 next_index, u32 maxrate)
1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char qeec_pl[MLXSW_REG_QEEC_LEN];

	mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
			    next_index);
	mlxsw_reg_qeec_mase_set(qeec_pl, true);
	mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
}

1432 1433
int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port,
			      u8 switch_prio, u8 tclass)
1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char qtct_pl[MLXSW_REG_QTCT_LEN];

	mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio,
			    tclass);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl);
}

static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
	int err, i;

	/* Setup the elements hierarcy, so that each TC is linked to
	 * one subgroup, which are all member in the same group.
	 */
	err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
				    MLXSW_REG_QEEC_HIERARCY_GROUP, 0, 0, false,
				    0);
	if (err)
		return err;
	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
					    MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i,
					    0, false, 0);
		if (err)
			return err;
	}
	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
					    MLXSW_REG_QEEC_HIERARCY_TC, i, i,
					    false, 0);
		if (err)
			return err;
	}

	/* Make sure the max shaper is disabled in all hierarcies that
	 * support it.
	 */
	err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
					    MLXSW_REG_QEEC_HIERARCY_PORT, 0, 0,
					    MLXSW_REG_QEEC_MAS_DIS);
	if (err)
		return err;
	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
						    MLXSW_REG_QEEC_HIERARCY_SUBGROUP,
						    i, 0,
						    MLXSW_REG_QEEC_MAS_DIS);
		if (err)
			return err;
	}
	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
						    MLXSW_REG_QEEC_HIERARCY_TC,
						    i, i,
						    MLXSW_REG_QEEC_MAS_DIS);
		if (err)
			return err;
	}

	/* Map all priorities to traffic class 0. */
	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
		err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0);
		if (err)
			return err;
	}

	return 0;
}

1505
static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
1506
				bool split, u8 module, u8 width, u8 lane)
1507 1508 1509
{
	struct mlxsw_sp_port *mlxsw_sp_port;
	struct net_device *dev;
1510
	size_t bytes;
1511 1512 1513 1514 1515 1516 1517 1518 1519
	int err;

	dev = alloc_etherdev(sizeof(struct mlxsw_sp_port));
	if (!dev)
		return -ENOMEM;
	mlxsw_sp_port = netdev_priv(dev);
	mlxsw_sp_port->dev = dev;
	mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
	mlxsw_sp_port->local_port = local_port;
1520
	mlxsw_sp_port->split = split;
1521 1522 1523
	mlxsw_sp_port->mapping.module = module;
	mlxsw_sp_port->mapping.width = width;
	mlxsw_sp_port->mapping.lane = lane;
1524 1525 1526 1527 1528 1529
	bytes = DIV_ROUND_UP(VLAN_N_VID, BITS_PER_BYTE);
	mlxsw_sp_port->active_vlans = kzalloc(bytes, GFP_KERNEL);
	if (!mlxsw_sp_port->active_vlans) {
		err = -ENOMEM;
		goto err_port_active_vlans_alloc;
	}
E
Elad Raz 已提交
1530 1531 1532 1533 1534
	mlxsw_sp_port->untagged_vlans = kzalloc(bytes, GFP_KERNEL);
	if (!mlxsw_sp_port->untagged_vlans) {
		err = -ENOMEM;
		goto err_port_untagged_vlans_alloc;
	}
1535
	INIT_LIST_HEAD(&mlxsw_sp_port->vports_list);
1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577

	mlxsw_sp_port->pcpu_stats =
		netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats);
	if (!mlxsw_sp_port->pcpu_stats) {
		err = -ENOMEM;
		goto err_alloc_stats;
	}

	dev->netdev_ops = &mlxsw_sp_port_netdev_ops;
	dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops;

	err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n",
			mlxsw_sp_port->local_port);
		goto err_dev_addr_init;
	}

	netif_carrier_off(dev);

	dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG |
			 NETIF_F_HW_VLAN_CTAG_FILTER;

	/* Each packet needs to have a Tx header (metadata) on top all other
	 * headers.
	 */
	dev->hard_header_len += MLXSW_TXHDR_LEN;

	err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n",
			mlxsw_sp_port->local_port);
		goto err_port_system_port_mapping_set;
	}

	err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n",
			mlxsw_sp_port->local_port);
		goto err_port_swid_set;
	}

1578 1579 1580 1581 1582 1583 1584
	err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port, width);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n",
			mlxsw_sp_port->local_port);
		goto err_port_speed_by_width_set;
	}

1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602
	err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n",
			mlxsw_sp_port->local_port);
		goto err_port_mtu_set;
	}

	err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
	if (err)
		goto err_port_admin_status_set;

	err = mlxsw_sp_port_buffers_init(mlxsw_sp_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n",
			mlxsw_sp_port->local_port);
		goto err_port_buffers_init;
	}

1603 1604 1605 1606 1607 1608 1609
	err = mlxsw_sp_port_ets_init(mlxsw_sp_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n",
			mlxsw_sp_port->local_port);
		goto err_port_ets_init;
	}

1610 1611 1612 1613 1614 1615 1616 1617
	/* ETS and buffers must be initialized before DCB. */
	err = mlxsw_sp_port_dcb_init(mlxsw_sp_port);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n",
			mlxsw_sp_port->local_port);
		goto err_port_dcb_init;
	}

1618 1619 1620 1621 1622 1623 1624 1625
	mlxsw_sp_port_switchdev_init(mlxsw_sp_port);
	err = register_netdev(dev);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n",
			mlxsw_sp_port->local_port);
		goto err_register_netdev;
	}

1626 1627 1628 1629 1630 1631 1632 1633
	err = mlxsw_core_port_init(mlxsw_sp->core, &mlxsw_sp_port->core_port,
				   mlxsw_sp_port->local_port, dev,
				   mlxsw_sp_port->split, module);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n",
			mlxsw_sp_port->local_port);
		goto err_core_port_init;
	}
J
Jiri Pirko 已提交
1634

1635 1636 1637 1638 1639 1640 1641 1642
	err = mlxsw_sp_port_vlan_init(mlxsw_sp_port);
	if (err)
		goto err_port_vlan_init;

	mlxsw_sp->ports[local_port] = mlxsw_sp_port;
	return 0;

err_port_vlan_init:
1643 1644
	mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
err_core_port_init:
1645 1646
	unregister_netdev(dev);
err_register_netdev:
1647
err_port_dcb_init:
1648
err_port_ets_init:
1649 1650 1651
err_port_buffers_init:
err_port_admin_status_set:
err_port_mtu_set:
1652
err_port_speed_by_width_set:
1653 1654 1655 1656 1657
err_port_swid_set:
err_port_system_port_mapping_set:
err_dev_addr_init:
	free_percpu(mlxsw_sp_port->pcpu_stats);
err_alloc_stats:
E
Elad Raz 已提交
1658 1659
	kfree(mlxsw_sp_port->untagged_vlans);
err_port_untagged_vlans_alloc:
1660 1661
	kfree(mlxsw_sp_port->active_vlans);
err_port_active_vlans_alloc:
1662 1663 1664 1665 1666 1667 1668 1669 1670 1671
	free_netdev(dev);
	return err;
}

static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
	struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];

	if (!mlxsw_sp_port)
		return;
1672
	mlxsw_sp->ports[local_port] = NULL;
1673
	mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
1674
	unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
1675
	mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
1676
	mlxsw_sp_port_kill_vid(mlxsw_sp_port->dev, 0, 1);
1677
	mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
1678 1679
	mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
	mlxsw_sp_port_module_unmap(mlxsw_sp, mlxsw_sp_port->local_port);
1680
	free_percpu(mlxsw_sp_port->pcpu_stats);
E
Elad Raz 已提交
1681
	kfree(mlxsw_sp_port->untagged_vlans);
1682
	kfree(mlxsw_sp_port->active_vlans);
1683
	WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vports_list));
1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697
	free_netdev(mlxsw_sp_port->dev);
}

static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp)
{
	int i;

	for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
		mlxsw_sp_port_remove(mlxsw_sp, i);
	kfree(mlxsw_sp->ports);
}

static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
{
1698
	u8 module, width, lane;
1699 1700 1701 1702 1703 1704 1705 1706 1707 1708
	size_t alloc_size;
	int i;
	int err;

	alloc_size = sizeof(struct mlxsw_sp_port *) * MLXSW_PORT_MAX_PORTS;
	mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL);
	if (!mlxsw_sp->ports)
		return -ENOMEM;

	for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) {
1709
		err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module,
1710
						    &width, &lane);
1711 1712 1713 1714 1715
		if (err)
			goto err_port_module_info_get;
		if (!width)
			continue;
		mlxsw_sp->port_to_module[i] = module;
1716 1717
		err = mlxsw_sp_port_create(mlxsw_sp, i, false, module, width,
					   lane);
1718 1719 1720 1721 1722 1723
		if (err)
			goto err_port_create;
	}
	return 0;

err_port_create:
1724
err_port_module_info_get:
1725 1726 1727 1728 1729 1730
	for (i--; i >= 1; i--)
		mlxsw_sp_port_remove(mlxsw_sp, i);
	kfree(mlxsw_sp->ports);
	return err;
}

1731 1732 1733 1734 1735 1736 1737
static u8 mlxsw_sp_cluster_base_port_get(u8 local_port)
{
	u8 offset = (local_port - 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX;

	return local_port - offset;
}

1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758
static int mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp, u8 base_port,
				      u8 module, unsigned int count)
{
	u8 width = MLXSW_PORT_MODULE_MAX_WIDTH / count;
	int err, i;

	for (i = 0; i < count; i++) {
		err = mlxsw_sp_port_module_map(mlxsw_sp, base_port + i, module,
					       width, i * width);
		if (err)
			goto err_port_module_map;
	}

	for (i = 0; i < count; i++) {
		err = __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i, 0);
		if (err)
			goto err_port_swid_set;
	}

	for (i = 0; i < count; i++) {
		err = mlxsw_sp_port_create(mlxsw_sp, base_port + i, true,
1759
					   module, width, i * width);
1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807
		if (err)
			goto err_port_create;
	}

	return 0;

err_port_create:
	for (i--; i >= 0; i--)
		mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
	i = count;
err_port_swid_set:
	for (i--; i >= 0; i--)
		__mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i,
					 MLXSW_PORT_SWID_DISABLED_PORT);
	i = count;
err_port_module_map:
	for (i--; i >= 0; i--)
		mlxsw_sp_port_module_unmap(mlxsw_sp, base_port + i);
	return err;
}

static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp *mlxsw_sp,
					 u8 base_port, unsigned int count)
{
	u8 local_port, module, width = MLXSW_PORT_MODULE_MAX_WIDTH;
	int i;

	/* Split by four means we need to re-create two ports, otherwise
	 * only one.
	 */
	count = count / 2;

	for (i = 0; i < count; i++) {
		local_port = base_port + i * 2;
		module = mlxsw_sp->port_to_module[local_port];

		mlxsw_sp_port_module_map(mlxsw_sp, local_port, module, width,
					 0);
	}

	for (i = 0; i < count; i++)
		__mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i * 2, 0);

	for (i = 0; i < count; i++) {
		local_port = base_port + i * 2;
		module = mlxsw_sp->port_to_module[local_port];

		mlxsw_sp_port_create(mlxsw_sp, local_port, false, module,
1808
				     width, 0);
1809 1810 1811
	}
}

1812 1813
static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port,
			       unsigned int count)
1814
{
1815
	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827
	struct mlxsw_sp_port *mlxsw_sp_port;
	u8 module, cur_width, base_port;
	int i;
	int err;

	mlxsw_sp_port = mlxsw_sp->ports[local_port];
	if (!mlxsw_sp_port) {
		dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
			local_port);
		return -EINVAL;
	}

1828 1829 1830
	module = mlxsw_sp_port->mapping.module;
	cur_width = mlxsw_sp_port->mapping.width;

1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859
	if (count != 2 && count != 4) {
		netdev_err(mlxsw_sp_port->dev, "Port can only be split into 2 or 4 ports\n");
		return -EINVAL;
	}

	if (cur_width != MLXSW_PORT_MODULE_MAX_WIDTH) {
		netdev_err(mlxsw_sp_port->dev, "Port cannot be split further\n");
		return -EINVAL;
	}

	/* Make sure we have enough slave (even) ports for the split. */
	if (count == 2) {
		base_port = local_port;
		if (mlxsw_sp->ports[base_port + 1]) {
			netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
			return -EINVAL;
		}
	} else {
		base_port = mlxsw_sp_cluster_base_port_get(local_port);
		if (mlxsw_sp->ports[base_port + 1] ||
		    mlxsw_sp->ports[base_port + 3]) {
			netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
			return -EINVAL;
		}
	}

	for (i = 0; i < count; i++)
		mlxsw_sp_port_remove(mlxsw_sp, base_port + i);

1860 1861 1862 1863
	err = mlxsw_sp_port_split_create(mlxsw_sp, base_port, module, count);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to create split ports\n");
		goto err_port_split_create;
1864 1865 1866 1867
	}

	return 0;

1868 1869
err_port_split_create:
	mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
1870 1871 1872
	return err;
}

1873
static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port)
1874
{
1875
	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
1876
	struct mlxsw_sp_port *mlxsw_sp_port;
1877
	u8 cur_width, base_port;
1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892
	unsigned int count;
	int i;

	mlxsw_sp_port = mlxsw_sp->ports[local_port];
	if (!mlxsw_sp_port) {
		dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
			local_port);
		return -EINVAL;
	}

	if (!mlxsw_sp_port->split) {
		netdev_err(mlxsw_sp_port->dev, "Port wasn't split\n");
		return -EINVAL;
	}

1893
	cur_width = mlxsw_sp_port->mapping.width;
1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904
	count = cur_width == 1 ? 4 : 2;

	base_port = mlxsw_sp_cluster_base_port_get(local_port);

	/* Determine which ports to remove. */
	if (count == 2 && local_port >= base_port + 2)
		base_port = base_port + 2;

	for (i = 0; i < count; i++)
		mlxsw_sp_port_remove(mlxsw_sp, base_port + i);

1905
	mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
1906 1907 1908 1909

	return 0;
}

1910 1911 1912 1913 1914 1915 1916 1917 1918 1919
static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
				     char *pude_pl, void *priv)
{
	struct mlxsw_sp *mlxsw_sp = priv;
	struct mlxsw_sp_port *mlxsw_sp_port;
	enum mlxsw_reg_pude_oper_status status;
	u8 local_port;

	local_port = mlxsw_reg_pude_local_port_get(pude_pl);
	mlxsw_sp_port = mlxsw_sp->ports[local_port];
1920
	if (!mlxsw_sp_port)
1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075
		return;

	status = mlxsw_reg_pude_oper_status_get(pude_pl);
	if (status == MLXSW_PORT_OPER_STATUS_UP) {
		netdev_info(mlxsw_sp_port->dev, "link up\n");
		netif_carrier_on(mlxsw_sp_port->dev);
	} else {
		netdev_info(mlxsw_sp_port->dev, "link down\n");
		netif_carrier_off(mlxsw_sp_port->dev);
	}
}

static struct mlxsw_event_listener mlxsw_sp_pude_event = {
	.func = mlxsw_sp_pude_event_func,
	.trap_id = MLXSW_TRAP_ID_PUDE,
};

static int mlxsw_sp_event_register(struct mlxsw_sp *mlxsw_sp,
				   enum mlxsw_event_trap_id trap_id)
{
	struct mlxsw_event_listener *el;
	char hpkt_pl[MLXSW_REG_HPKT_LEN];
	int err;

	switch (trap_id) {
	case MLXSW_TRAP_ID_PUDE:
		el = &mlxsw_sp_pude_event;
		break;
	}
	err = mlxsw_core_event_listener_register(mlxsw_sp->core, el, mlxsw_sp);
	if (err)
		return err;

	mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, trap_id);
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
	if (err)
		goto err_event_trap_set;

	return 0;

err_event_trap_set:
	mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
	return err;
}

static void mlxsw_sp_event_unregister(struct mlxsw_sp *mlxsw_sp,
				      enum mlxsw_event_trap_id trap_id)
{
	struct mlxsw_event_listener *el;

	switch (trap_id) {
	case MLXSW_TRAP_ID_PUDE:
		el = &mlxsw_sp_pude_event;
		break;
	}
	mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
}

static void mlxsw_sp_rx_listener_func(struct sk_buff *skb, u8 local_port,
				      void *priv)
{
	struct mlxsw_sp *mlxsw_sp = priv;
	struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
	struct mlxsw_sp_port_pcpu_stats *pcpu_stats;

	if (unlikely(!mlxsw_sp_port)) {
		dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n",
				     local_port);
		return;
	}

	skb->dev = mlxsw_sp_port->dev;

	pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
	u64_stats_update_begin(&pcpu_stats->syncp);
	pcpu_stats->rx_packets++;
	pcpu_stats->rx_bytes += skb->len;
	u64_stats_update_end(&pcpu_stats->syncp);

	skb->protocol = eth_type_trans(skb, skb->dev);
	netif_receive_skb(skb);
}

static const struct mlxsw_rx_listener mlxsw_sp_rx_listener[] = {
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_FDB_MC,
	},
	/* Traps for specific L2 packet types, not trapped as FDB MC */
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_STP,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_LACP,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_EAPOL,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_LLDP,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_MMRP,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_MVRP,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_RPVST,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_DHCP,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_IGMP_QUERY,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_IGMP_V1_REPORT,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_IGMP_V2_REPORT,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_IGMP_V2_LEAVE,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_IGMP_V3_REPORT,
	},
2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_ARPBC,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_ARPUC,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_IP2ME,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_RTR_INGRESS0,
	},
	{
		.func = mlxsw_sp_rx_listener_func,
		.local_port = MLXSW_PORT_DONT_CARE,
		.trap_id = MLXSW_TRAP_ID_HOST_MISS_IPV4,
	},
2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140
};

static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
{
	char htgt_pl[MLXSW_REG_HTGT_LEN];
	char hpkt_pl[MLXSW_REG_HPKT_LEN];
	int i;
	int err;

	mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_RX);
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
	if (err)
		return err;

	mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_CTRL);
	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
	if (err)
		return err;

	for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
		err = mlxsw_core_rx_listener_register(mlxsw_sp->core,
						      &mlxsw_sp_rx_listener[i],
						      mlxsw_sp);
		if (err)
			goto err_rx_listener_register;

		mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU,
				    mlxsw_sp_rx_listener[i].trap_id);
		err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
		if (err)
			goto err_rx_trap_set;
	}
	return 0;

err_rx_trap_set:
	mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
					  &mlxsw_sp_rx_listener[i],
					  mlxsw_sp);
err_rx_listener_register:
	for (i--; i >= 0; i--) {
2141
		mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157
				    mlxsw_sp_rx_listener[i].trap_id);
		mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);

		mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
						  &mlxsw_sp_rx_listener[i],
						  mlxsw_sp);
	}
	return err;
}

static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
{
	char hpkt_pl[MLXSW_REG_HPKT_LEN];
	int i;

	for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
2158
		mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175
				    mlxsw_sp_rx_listener[i].trap_id);
		mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);

		mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
						  &mlxsw_sp_rx_listener[i],
						  mlxsw_sp);
	}
}

static int __mlxsw_sp_flood_init(struct mlxsw_core *mlxsw_core,
				 enum mlxsw_reg_sfgc_type type,
				 enum mlxsw_reg_sfgc_bridge_type bridge_type)
{
	enum mlxsw_flood_table_type table_type;
	enum mlxsw_sp_flood_table flood_table;
	char sfgc_pl[MLXSW_REG_SFGC_LEN];

2176
	if (bridge_type == MLXSW_REG_SFGC_BRIDGE_TYPE_VFID)
2177
		table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
2178
	else
2179
		table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;
2180 2181 2182 2183 2184

	if (type == MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST)
		flood_table = MLXSW_SP_FLOOD_TABLE_UC;
	else
		flood_table = MLXSW_SP_FLOOD_TABLE_BM;
2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212

	mlxsw_reg_sfgc_pack(sfgc_pl, type, bridge_type, table_type,
			    flood_table);
	return mlxsw_reg_write(mlxsw_core, MLXSW_REG(sfgc), sfgc_pl);
}

static int mlxsw_sp_flood_init(struct mlxsw_sp *mlxsw_sp)
{
	int type, err;

	for (type = 0; type < MLXSW_REG_SFGC_TYPE_MAX; type++) {
		if (type == MLXSW_REG_SFGC_TYPE_RESERVED)
			continue;

		err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
					    MLXSW_REG_SFGC_BRIDGE_TYPE_VFID);
		if (err)
			return err;

		err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
					    MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID);
		if (err)
			return err;
	}

	return 0;
}

2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228
static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)
{
	char slcr_pl[MLXSW_REG_SLCR_LEN];

	mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC |
				     MLXSW_REG_SLCR_LAG_HASH_DMAC |
				     MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE |
				     MLXSW_REG_SLCR_LAG_HASH_VLANID |
				     MLXSW_REG_SLCR_LAG_HASH_SIP |
				     MLXSW_REG_SLCR_LAG_HASH_DIP |
				     MLXSW_REG_SLCR_LAG_HASH_SPORT |
				     MLXSW_REG_SLCR_LAG_HASH_DPORT |
				     MLXSW_REG_SLCR_LAG_HASH_IPPROTO);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl);
}

2229
static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
2230 2231
			 const struct mlxsw_bus_info *mlxsw_bus_info)
{
2232
	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2233 2234 2235 2236
	int err;

	mlxsw_sp->core = mlxsw_core;
	mlxsw_sp->bus_info = mlxsw_bus_info;
2237
	INIT_LIST_HEAD(&mlxsw_sp->fids);
2238
	INIT_LIST_HEAD(&mlxsw_sp->vfids.list);
2239
	INIT_LIST_HEAD(&mlxsw_sp->br_mids.list);
2240 2241 2242 2243 2244 2245 2246 2247 2248 2249

	err = mlxsw_sp_base_mac_get(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n");
		return err;
	}

	err = mlxsw_sp_event_register(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to register for PUDE events\n");
2250
		return err;
2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270
	}

	err = mlxsw_sp_traps_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps for RX\n");
		goto err_rx_listener_register;
	}

	err = mlxsw_sp_flood_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize flood tables\n");
		goto err_flood_init;
	}

	err = mlxsw_sp_buffers_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n");
		goto err_buffers_init;
	}

2271 2272 2273 2274 2275 2276
	err = mlxsw_sp_lag_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n");
		goto err_lag_init;
	}

2277 2278 2279 2280 2281 2282
	err = mlxsw_sp_switchdev_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n");
		goto err_switchdev_init;
	}

2283 2284 2285 2286 2287 2288
	err = mlxsw_sp_router_init(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize router\n");
		goto err_router_init;
	}

2289 2290 2291 2292 2293 2294
	err = mlxsw_sp_ports_create(mlxsw_sp);
	if (err) {
		dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n");
		goto err_ports_create;
	}

2295 2296
	return 0;

2297
err_ports_create:
2298 2299
	mlxsw_sp_router_fini(mlxsw_sp);
err_router_init:
2300
	mlxsw_sp_switchdev_fini(mlxsw_sp);
2301
err_switchdev_init:
2302
err_lag_init:
2303
	mlxsw_sp_buffers_fini(mlxsw_sp);
2304 2305 2306 2307 2308 2309 2310 2311
err_buffers_init:
err_flood_init:
	mlxsw_sp_traps_fini(mlxsw_sp);
err_rx_listener_register:
	mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
	return err;
}

2312
static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core)
2313
{
2314
	struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2315
	int i;
2316

2317
	mlxsw_sp_ports_remove(mlxsw_sp);
2318
	mlxsw_sp_router_fini(mlxsw_sp);
2319
	mlxsw_sp_switchdev_fini(mlxsw_sp);
2320
	mlxsw_sp_buffers_fini(mlxsw_sp);
2321 2322
	mlxsw_sp_traps_fini(mlxsw_sp);
	mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2323
	WARN_ON(!list_empty(&mlxsw_sp->vfids.list));
2324
	WARN_ON(!list_empty(&mlxsw_sp->fids));
2325 2326
	for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
		WARN_ON_ONCE(mlxsw_sp->rifs[i]);
2327 2328 2329 2330 2331 2332
}

static struct mlxsw_config_profile mlxsw_sp_config_profile = {
	.used_max_vepa_channels		= 1,
	.max_vepa_channels		= 0,
	.used_max_lag			= 1,
2333
	.max_lag			= MLXSW_SP_LAG_MAX,
2334
	.used_max_port_per_lag		= 1,
2335
	.max_port_per_lag		= MLXSW_SP_PORT_PER_LAG_MAX,
2336
	.used_max_mid			= 1,
2337
	.max_mid			= MLXSW_SP_MID_MAX,
2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350
	.used_max_pgt			= 1,
	.max_pgt			= 0,
	.used_max_system_port		= 1,
	.max_system_port		= 64,
	.used_max_vlan_groups		= 1,
	.max_vlan_groups		= 127,
	.used_max_regions		= 1,
	.max_regions			= 400,
	.used_flood_tables		= 1,
	.used_flood_mode		= 1,
	.flood_mode			= 3,
	.max_fid_offset_flood_tables	= 2,
	.fid_offset_flood_table_size	= VLAN_N_VID - 1,
2351 2352
	.max_fid_flood_tables		= 2,
	.fid_flood_table_size		= MLXSW_SP_VFID_MAX,
2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365
	.used_max_ib_mc			= 1,
	.max_ib_mc			= 0,
	.used_max_pkey			= 1,
	.max_pkey			= 0,
	.swid_config			= {
		{
			.used_type	= 1,
			.type		= MLXSW_PORT_SWID_TYPE_ETH,
		}
	},
};

static struct mlxsw_driver mlxsw_sp_driver = {
2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385
	.kind				= MLXSW_DEVICE_KIND_SPECTRUM,
	.owner				= THIS_MODULE,
	.priv_size			= sizeof(struct mlxsw_sp),
	.init				= mlxsw_sp_init,
	.fini				= mlxsw_sp_fini,
	.port_split			= mlxsw_sp_port_split,
	.port_unsplit			= mlxsw_sp_port_unsplit,
	.sb_pool_get			= mlxsw_sp_sb_pool_get,
	.sb_pool_set			= mlxsw_sp_sb_pool_set,
	.sb_port_pool_get		= mlxsw_sp_sb_port_pool_get,
	.sb_port_pool_set		= mlxsw_sp_sb_port_pool_set,
	.sb_tc_pool_bind_get		= mlxsw_sp_sb_tc_pool_bind_get,
	.sb_tc_pool_bind_set		= mlxsw_sp_sb_tc_pool_bind_set,
	.sb_occ_snapshot		= mlxsw_sp_sb_occ_snapshot,
	.sb_occ_max_clear		= mlxsw_sp_sb_occ_max_clear,
	.sb_occ_port_pool_get		= mlxsw_sp_sb_occ_port_pool_get,
	.sb_occ_tc_port_bind_get	= mlxsw_sp_sb_occ_tc_port_bind_get,
	.txhdr_construct		= mlxsw_sp_txhdr_construct,
	.txhdr_len			= MLXSW_TXHDR_LEN,
	.profile			= &mlxsw_sp_config_profile,
2386 2387
};

2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447
static bool mlxsw_sp_port_dev_check(const struct net_device *dev)
{
	return dev->netdev_ops == &mlxsw_sp_port_netdev_ops;
}

static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find(struct net_device *dev)
{
	struct net_device *lower_dev;
	struct list_head *iter;

	if (mlxsw_sp_port_dev_check(dev))
		return netdev_priv(dev);

	netdev_for_each_all_lower_dev(dev, lower_dev, iter) {
		if (mlxsw_sp_port_dev_check(lower_dev))
			return netdev_priv(lower_dev);
	}
	return NULL;
}

static struct mlxsw_sp *mlxsw_sp_lower_get(struct net_device *dev)
{
	struct mlxsw_sp_port *mlxsw_sp_port;

	mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev);
	return mlxsw_sp_port ? mlxsw_sp_port->mlxsw_sp : NULL;
}

static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find_rcu(struct net_device *dev)
{
	struct net_device *lower_dev;
	struct list_head *iter;

	if (mlxsw_sp_port_dev_check(dev))
		return netdev_priv(dev);

	netdev_for_each_all_lower_dev_rcu(dev, lower_dev, iter) {
		if (mlxsw_sp_port_dev_check(lower_dev))
			return netdev_priv(lower_dev);
	}
	return NULL;
}

struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev)
{
	struct mlxsw_sp_port *mlxsw_sp_port;

	rcu_read_lock();
	mlxsw_sp_port = mlxsw_sp_port_dev_lower_find_rcu(dev);
	if (mlxsw_sp_port)
		dev_hold(mlxsw_sp_port->dev);
	rcu_read_unlock();
	return mlxsw_sp_port;
}

void mlxsw_sp_port_dev_put(struct mlxsw_sp_port *mlxsw_sp_port)
{
	dev_put(mlxsw_sp_port->dev);
}

2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708
static bool mlxsw_sp_rif_should_config(struct mlxsw_sp_rif *r,
				       unsigned long event)
{
	switch (event) {
	case NETDEV_UP:
		if (!r)
			return true;
		r->ref_count++;
		return false;
	case NETDEV_DOWN:
		if (r && --r->ref_count == 0)
			return true;
		/* It is possible we already removed the RIF ourselves
		 * if it was assigned to a netdev that is now a bridge
		 * or LAG slave.
		 */
		return false;
	}

	return false;
}

static int mlxsw_sp_avail_rif_get(struct mlxsw_sp *mlxsw_sp)
{
	int i;

	for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
		if (!mlxsw_sp->rifs[i])
			return i;

	return MLXSW_SP_RIF_MAX;
}

static void mlxsw_sp_vport_rif_sp_attr_get(struct mlxsw_sp_port *mlxsw_sp_vport,
					   bool *p_lagged, u16 *p_system_port)
{
	u8 local_port = mlxsw_sp_vport->local_port;

	*p_lagged = mlxsw_sp_vport->lagged;
	*p_system_port = *p_lagged ? mlxsw_sp_vport->lag_id : local_port;
}

static int mlxsw_sp_vport_rif_sp_op(struct mlxsw_sp_port *mlxsw_sp_vport,
				    struct net_device *l3_dev, u16 rif,
				    bool create)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
	bool lagged = mlxsw_sp_vport->lagged;
	char ritr_pl[MLXSW_REG_RITR_LEN];
	u16 system_port;

	mlxsw_reg_ritr_pack(ritr_pl, create, MLXSW_REG_RITR_SP_IF, rif,
			    l3_dev->mtu, l3_dev->dev_addr);

	mlxsw_sp_vport_rif_sp_attr_get(mlxsw_sp_vport, &lagged, &system_port);
	mlxsw_reg_ritr_sp_if_pack(ritr_pl, lagged, system_port,
				  mlxsw_sp_vport_vid_get(mlxsw_sp_vport));

	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
}

static void mlxsw_sp_vport_rif_sp_leave(struct mlxsw_sp_port *mlxsw_sp_vport);

static struct mlxsw_sp_fid *
mlxsw_sp_rfid_alloc(u16 fid, struct net_device *l3_dev)
{
	struct mlxsw_sp_fid *f;

	f = kzalloc(sizeof(*f), GFP_KERNEL);
	if (!f)
		return NULL;

	f->leave = mlxsw_sp_vport_rif_sp_leave;
	f->ref_count = 0;
	f->dev = l3_dev;
	f->fid = fid;

	return f;
}

static struct mlxsw_sp_rif *
mlxsw_sp_rif_alloc(u16 rif, struct net_device *l3_dev, struct mlxsw_sp_fid *f)
{
	struct mlxsw_sp_rif *r;

	r = kzalloc(sizeof(*r), GFP_KERNEL);
	if (!r)
		return NULL;

	ether_addr_copy(r->addr, l3_dev->dev_addr);
	r->mtu = l3_dev->mtu;
	r->ref_count = 1;
	r->dev = l3_dev;
	r->rif = rif;
	r->f = f;

	return r;
}

static struct mlxsw_sp_rif *
mlxsw_sp_vport_rif_sp_create(struct mlxsw_sp_port *mlxsw_sp_vport,
			     struct net_device *l3_dev)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
	struct mlxsw_sp_fid *f;
	struct mlxsw_sp_rif *r;
	u16 fid, rif;
	int err;

	rif = mlxsw_sp_avail_rif_get(mlxsw_sp);
	if (rif == MLXSW_SP_RIF_MAX)
		return ERR_PTR(-ERANGE);

	err = mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, true);
	if (err)
		return ERR_PTR(err);

	fid = mlxsw_sp_rif_sp_to_fid(rif);
	err = mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, true);
	if (err)
		goto err_rif_fdb_op;

	f = mlxsw_sp_rfid_alloc(fid, l3_dev);
	if (!f) {
		err = -ENOMEM;
		goto err_rfid_alloc;
	}

	r = mlxsw_sp_rif_alloc(rif, l3_dev, f);
	if (!r) {
		err = -ENOMEM;
		goto err_rif_alloc;
	}

	f->r = r;
	mlxsw_sp->rifs[rif] = r;

	return r;

err_rif_alloc:
	kfree(f);
err_rfid_alloc:
	mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, false);
err_rif_fdb_op:
	mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, false);
	return ERR_PTR(err);
}

static void mlxsw_sp_vport_rif_sp_destroy(struct mlxsw_sp_port *mlxsw_sp_vport,
					  struct mlxsw_sp_rif *r)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
	struct net_device *l3_dev = r->dev;
	struct mlxsw_sp_fid *f = r->f;
	u16 fid = f->fid;
	u16 rif = r->rif;

	mlxsw_sp->rifs[rif] = NULL;
	f->r = NULL;

	kfree(r);

	kfree(f);

	mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, false);

	mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, false);
}

static int mlxsw_sp_vport_rif_sp_join(struct mlxsw_sp_port *mlxsw_sp_vport,
				      struct net_device *l3_dev)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
	struct mlxsw_sp_rif *r;

	r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, l3_dev);
	if (!r) {
		r = mlxsw_sp_vport_rif_sp_create(mlxsw_sp_vport, l3_dev);
		if (IS_ERR(r))
			return PTR_ERR(r);
	}

	mlxsw_sp_vport_fid_set(mlxsw_sp_vport, r->f);
	r->f->ref_count++;

	netdev_dbg(mlxsw_sp_vport->dev, "Joined FID=%d\n", r->f->fid);

	return 0;
}

static void mlxsw_sp_vport_rif_sp_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
{
	struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);

	netdev_dbg(mlxsw_sp_vport->dev, "Left FID=%d\n", f->fid);

	mlxsw_sp_vport_fid_set(mlxsw_sp_vport, NULL);
	if (--f->ref_count == 0)
		mlxsw_sp_vport_rif_sp_destroy(mlxsw_sp_vport, f->r);
}

static int mlxsw_sp_inetaddr_vport_event(struct net_device *l3_dev,
					 struct net_device *port_dev,
					 unsigned long event, u16 vid)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(port_dev);
	struct mlxsw_sp_port *mlxsw_sp_vport;

	mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
	if (WARN_ON(!mlxsw_sp_vport))
		return -EINVAL;

	switch (event) {
	case NETDEV_UP:
		return mlxsw_sp_vport_rif_sp_join(mlxsw_sp_vport, l3_dev);
	case NETDEV_DOWN:
		mlxsw_sp_vport_rif_sp_leave(mlxsw_sp_vport);
		break;
	}

	return 0;
}

static int mlxsw_sp_inetaddr_port_event(struct net_device *port_dev,
					unsigned long event)
{
	if (netif_is_bridge_port(port_dev) || netif_is_lag_port(port_dev))
		return 0;

	return mlxsw_sp_inetaddr_vport_event(port_dev, port_dev, event, 1);
}

static int __mlxsw_sp_inetaddr_lag_event(struct net_device *l3_dev,
					 struct net_device *lag_dev,
					 unsigned long event, u16 vid)
{
	struct net_device *port_dev;
	struct list_head *iter;
	int err;

	netdev_for_each_lower_dev(lag_dev, port_dev, iter) {
		if (mlxsw_sp_port_dev_check(port_dev)) {
			err = mlxsw_sp_inetaddr_vport_event(l3_dev, port_dev,
							    event, vid);
			if (err)
				return err;
		}
	}

	return 0;
}

static int mlxsw_sp_inetaddr_lag_event(struct net_device *lag_dev,
				       unsigned long event)
{
	if (netif_is_bridge_port(lag_dev))
		return 0;

	return __mlxsw_sp_inetaddr_lag_event(lag_dev, lag_dev, event, 1);
}

2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832
static struct mlxsw_sp_fid *mlxsw_sp_bridge_fid_get(struct mlxsw_sp *mlxsw_sp,
						    struct net_device *l3_dev)
{
	u16 fid;

	if (is_vlan_dev(l3_dev))
		fid = vlan_dev_vlan_id(l3_dev);
	else if (mlxsw_sp->master_bridge.dev == l3_dev)
		fid = 1;
	else
		return mlxsw_sp_vfid_find(mlxsw_sp, l3_dev);

	return mlxsw_sp_fid_find(mlxsw_sp, fid);
}

static enum mlxsw_reg_ritr_if_type mlxsw_sp_rif_type_get(u16 fid)
{
	if (mlxsw_sp_fid_is_vfid(fid))
		return MLXSW_REG_RITR_FID_IF;
	else
		return MLXSW_REG_RITR_VLAN_IF;
}

static int mlxsw_sp_rif_bridge_op(struct mlxsw_sp *mlxsw_sp,
				  struct net_device *l3_dev,
				  u16 fid, u16 rif,
				  bool create)
{
	enum mlxsw_reg_ritr_if_type rif_type;
	char ritr_pl[MLXSW_REG_RITR_LEN];

	rif_type = mlxsw_sp_rif_type_get(fid);
	mlxsw_reg_ritr_pack(ritr_pl, create, rif_type, rif, l3_dev->mtu,
			    l3_dev->dev_addr);
	mlxsw_reg_ritr_fid_set(ritr_pl, rif_type, fid);

	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
}

static int mlxsw_sp_rif_bridge_create(struct mlxsw_sp *mlxsw_sp,
				      struct net_device *l3_dev,
				      struct mlxsw_sp_fid *f)
{
	struct mlxsw_sp_rif *r;
	u16 rif;
	int err;

	rif = mlxsw_sp_avail_rif_get(mlxsw_sp);
	if (rif == MLXSW_SP_RIF_MAX)
		return -ERANGE;

	err = mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, true);
	if (err)
		return err;

	err = mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, true);
	if (err)
		goto err_rif_fdb_op;

	r = mlxsw_sp_rif_alloc(rif, l3_dev, f);
	if (!r) {
		err = -ENOMEM;
		goto err_rif_alloc;
	}

	f->r = r;
	mlxsw_sp->rifs[rif] = r;

	netdev_dbg(l3_dev, "RIF=%d created\n", rif);

	return 0;

err_rif_alloc:
	mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, false);
err_rif_fdb_op:
	mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, false);
	return err;
}

void mlxsw_sp_rif_bridge_destroy(struct mlxsw_sp *mlxsw_sp,
				 struct mlxsw_sp_rif *r)
{
	struct net_device *l3_dev = r->dev;
	struct mlxsw_sp_fid *f = r->f;
	u16 rif = r->rif;

	mlxsw_sp->rifs[rif] = NULL;
	f->r = NULL;

	kfree(r);

	mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, false);

	mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, false);

	netdev_dbg(l3_dev, "RIF=%d destroyed\n", rif);
}

static int mlxsw_sp_inetaddr_bridge_event(struct net_device *l3_dev,
					  struct net_device *br_dev,
					  unsigned long event)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(l3_dev);
	struct mlxsw_sp_fid *f;

	/* FID can either be an actual FID if the L3 device is the
	 * VLAN-aware bridge or a VLAN device on top. Otherwise, the
	 * L3 device is a VLAN-unaware bridge and we get a vFID.
	 */
	f = mlxsw_sp_bridge_fid_get(mlxsw_sp, l3_dev);
	if (WARN_ON(!f))
		return -EINVAL;

	switch (event) {
	case NETDEV_UP:
		return mlxsw_sp_rif_bridge_create(mlxsw_sp, l3_dev, f);
	case NETDEV_DOWN:
		mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
		break;
	}

	return 0;
}

2833 2834 2835 2836
static int mlxsw_sp_inetaddr_vlan_event(struct net_device *vlan_dev,
					unsigned long event)
{
	struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
2837
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(vlan_dev);
2838 2839 2840 2841 2842 2843 2844 2845
	u16 vid = vlan_dev_vlan_id(vlan_dev);

	if (mlxsw_sp_port_dev_check(real_dev))
		return mlxsw_sp_inetaddr_vport_event(vlan_dev, real_dev, event,
						     vid);
	else if (netif_is_lag_master(real_dev))
		return __mlxsw_sp_inetaddr_lag_event(vlan_dev, real_dev, event,
						     vid);
2846 2847 2848 2849
	else if (netif_is_bridge_master(real_dev) &&
		 mlxsw_sp->master_bridge.dev == real_dev)
		return mlxsw_sp_inetaddr_bridge_event(vlan_dev, real_dev,
						      event);
2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874

	return 0;
}

static int mlxsw_sp_inetaddr_event(struct notifier_block *unused,
				   unsigned long event, void *ptr)
{
	struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
	struct net_device *dev = ifa->ifa_dev->dev;
	struct mlxsw_sp *mlxsw_sp;
	struct mlxsw_sp_rif *r;
	int err = 0;

	mlxsw_sp = mlxsw_sp_lower_get(dev);
	if (!mlxsw_sp)
		goto out;

	r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev);
	if (!mlxsw_sp_rif_should_config(r, event))
		goto out;

	if (mlxsw_sp_port_dev_check(dev))
		err = mlxsw_sp_inetaddr_port_event(dev, event);
	else if (netif_is_lag_master(dev))
		err = mlxsw_sp_inetaddr_lag_event(dev, event);
2875 2876
	else if (netif_is_bridge_master(dev))
		err = mlxsw_sp_inetaddr_bridge_event(dev, dev, event);
2877 2878 2879 2880 2881 2882 2883
	else if (is_vlan_dev(dev))
		err = mlxsw_sp_inetaddr_vlan_event(dev, event);

out:
	return notifier_from_errno(err);
}

2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940
static int mlxsw_sp_rif_edit(struct mlxsw_sp *mlxsw_sp, u16 rif,
			     const char *mac, int mtu)
{
	char ritr_pl[MLXSW_REG_RITR_LEN];
	int err;

	mlxsw_reg_ritr_rif_pack(ritr_pl, rif);
	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
	if (err)
		return err;

	mlxsw_reg_ritr_mtu_set(ritr_pl, mtu);
	mlxsw_reg_ritr_if_mac_memcpy_to(ritr_pl, mac);
	mlxsw_reg_ritr_op_set(ritr_pl, MLXSW_REG_RITR_RIF_CREATE);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
}

static int mlxsw_sp_netdevice_router_port_event(struct net_device *dev)
{
	struct mlxsw_sp *mlxsw_sp;
	struct mlxsw_sp_rif *r;
	int err;

	mlxsw_sp = mlxsw_sp_lower_get(dev);
	if (!mlxsw_sp)
		return 0;

	r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev);
	if (!r)
		return 0;

	err = mlxsw_sp_rif_fdb_op(mlxsw_sp, r->addr, r->f->fid, false);
	if (err)
		return err;

	err = mlxsw_sp_rif_edit(mlxsw_sp, r->rif, dev->dev_addr, dev->mtu);
	if (err)
		goto err_rif_edit;

	err = mlxsw_sp_rif_fdb_op(mlxsw_sp, dev->dev_addr, r->f->fid, true);
	if (err)
		goto err_rif_fdb_op;

	ether_addr_copy(r->addr, dev->dev_addr);
	r->mtu = dev->mtu;

	netdev_dbg(dev, "Updated RIF=%d\n", r->rif);

	return 0;

err_rif_fdb_op:
	mlxsw_sp_rif_edit(mlxsw_sp, r->rif, r->addr, r->mtu);
err_rif_edit:
	mlxsw_sp_rif_fdb_op(mlxsw_sp, r->addr, r->f->fid, true);
	return err;
}

2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951
static bool mlxsw_sp_lag_port_fid_member(struct mlxsw_sp_port *lag_port,
					 u16 fid)
{
	if (mlxsw_sp_fid_is_vfid(fid))
		return mlxsw_sp_port_vport_find_by_fid(lag_port, fid);
	else
		return test_bit(fid, lag_port->active_vlans);
}

static bool mlxsw_sp_port_fdb_should_flush(struct mlxsw_sp_port *mlxsw_sp_port,
					   u16 fid)
2952 2953
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2954 2955 2956
	u8 local_port = mlxsw_sp_port->local_port;
	u16 lag_id = mlxsw_sp_port->lag_id;
	int i, count = 0;
2957

2958 2959
	if (!mlxsw_sp_port->lagged)
		return true;
2960

2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971
	for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
		struct mlxsw_sp_port *lag_port;

		lag_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
		if (!lag_port || lag_port->local_port == local_port)
			continue;
		if (mlxsw_sp_lag_port_fid_member(lag_port, fid))
			count++;
	}

	return !count;
2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985
}

static int
mlxsw_sp_port_fdb_flush_by_port_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
				    u16 fid)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char sfdf_pl[MLXSW_REG_SFDF_LEN];

	mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID);
	mlxsw_reg_sfdf_fid_set(sfdf_pl, fid);
	mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl,
						mlxsw_sp_port->local_port);

I
Ido Schimmel 已提交
2986 2987 2988
	netdev_dbg(mlxsw_sp_port->dev, "FDB flushed using Port=%d, FID=%d\n",
		   mlxsw_sp_port->local_port, fid);

2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
}

static int
mlxsw_sp_port_fdb_flush_by_lag_id_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
				      u16 fid)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char sfdf_pl[MLXSW_REG_SFDF_LEN];

	mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID);
	mlxsw_reg_sfdf_fid_set(sfdf_pl, fid);
	mlxsw_reg_sfdf_lag_fid_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id);

I
Ido Schimmel 已提交
3003 3004 3005
	netdev_dbg(mlxsw_sp_port->dev, "FDB flushed using LAG ID=%d, FID=%d\n",
		   mlxsw_sp_port->lag_id, fid);

3006 3007 3008
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
}

3009
int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid)
3010
{
3011 3012
	if (!mlxsw_sp_port_fdb_should_flush(mlxsw_sp_port, fid))
		return 0;
3013

3014 3015
	if (mlxsw_sp_port->lagged)
		return mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_port,
3016 3017
							     fid);
	else
3018
		return mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_port, fid);
3019 3020
}

3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031
static void mlxsw_sp_master_bridge_gone_sync(struct mlxsw_sp *mlxsw_sp)
{
	struct mlxsw_sp_fid *f, *tmp;

	list_for_each_entry_safe(f, tmp, &mlxsw_sp->fids, list)
		if (--f->ref_count == 0)
			mlxsw_sp_fid_destroy(mlxsw_sp, f);
		else
			WARN_ON_ONCE(1);
}

3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047
static bool mlxsw_sp_master_bridge_check(struct mlxsw_sp *mlxsw_sp,
					 struct net_device *br_dev)
{
	return !mlxsw_sp->master_bridge.dev ||
	       mlxsw_sp->master_bridge.dev == br_dev;
}

static void mlxsw_sp_master_bridge_inc(struct mlxsw_sp *mlxsw_sp,
				       struct net_device *br_dev)
{
	mlxsw_sp->master_bridge.dev = br_dev;
	mlxsw_sp->master_bridge.ref_count++;
}

static void mlxsw_sp_master_bridge_dec(struct mlxsw_sp *mlxsw_sp)
{
3048
	if (--mlxsw_sp->master_bridge.ref_count == 0) {
3049
		mlxsw_sp->master_bridge.dev = NULL;
3050 3051 3052 3053 3054 3055 3056
		/* It's possible upper VLAN devices are still holding
		 * references to underlying FIDs. Drop the reference
		 * and release the resources if it was the last one.
		 * If it wasn't, then something bad happened.
		 */
		mlxsw_sp_master_bridge_gone_sync(mlxsw_sp);
	}
3057 3058 3059 3060
}

static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port,
				     struct net_device *br_dev)
3061 3062 3063 3064 3065 3066 3067 3068 3069 3070
{
	struct net_device *dev = mlxsw_sp_port->dev;
	int err;

	/* When port is not bridged untagged packets are tagged with
	 * PVID=VID=1, thereby creating an implicit VLAN interface in
	 * the device. Remove it and let bridge code take care of its
	 * own VLANs.
	 */
	err = mlxsw_sp_port_kill_vid(dev, 0, 1);
3071 3072
	if (err)
		return err;
3073

3074 3075
	mlxsw_sp_master_bridge_inc(mlxsw_sp_port->mlxsw_sp, br_dev);

3076 3077 3078 3079 3080 3081
	mlxsw_sp_port->learning = 1;
	mlxsw_sp_port->learning_sync = 1;
	mlxsw_sp_port->uc_flood = 1;
	mlxsw_sp_port->bridged = 1;

	return 0;
3082 3083
}

3084
static void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port)
3085 3086
{
	struct net_device *dev = mlxsw_sp_port->dev;
3087

3088 3089
	mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);

3090 3091
	mlxsw_sp_master_bridge_dec(mlxsw_sp_port->mlxsw_sp);

3092 3093 3094
	mlxsw_sp_port->learning = 0;
	mlxsw_sp_port->learning_sync = 0;
	mlxsw_sp_port->uc_flood = 0;
3095
	mlxsw_sp_port->bridged = 0;
3096 3097 3098 3099

	/* Add implicit VLAN interface in the device, so that untagged
	 * packets will be classified to the default vFID.
	 */
3100
	mlxsw_sp_port_add_vid(dev, 0, 1);
3101 3102
}

3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215
static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
{
	char sldr_pl[MLXSW_REG_SLDR_LEN];

	mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
}

static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
{
	char sldr_pl[MLXSW_REG_SLDR_LEN];

	mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
}

static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
				     u16 lag_id, u8 port_index)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char slcor_pl[MLXSW_REG_SLCOR_LEN];

	mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port,
				      lag_id, port_index);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
}

static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
					u16 lag_id)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char slcor_pl[MLXSW_REG_SLCOR_LEN];

	mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port,
					 lag_id);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
}

static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port,
					u16 lag_id)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char slcor_pl[MLXSW_REG_SLCOR_LEN];

	mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port,
					lag_id);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
}

static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port,
					 u16 lag_id)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char slcor_pl[MLXSW_REG_SLCOR_LEN];

	mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port,
					 lag_id);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
}

static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp,
				  struct net_device *lag_dev,
				  u16 *p_lag_id)
{
	struct mlxsw_sp_upper *lag;
	int free_lag_id = -1;
	int i;

	for (i = 0; i < MLXSW_SP_LAG_MAX; i++) {
		lag = mlxsw_sp_lag_get(mlxsw_sp, i);
		if (lag->ref_count) {
			if (lag->dev == lag_dev) {
				*p_lag_id = i;
				return 0;
			}
		} else if (free_lag_id < 0) {
			free_lag_id = i;
		}
	}
	if (free_lag_id < 0)
		return -EBUSY;
	*p_lag_id = free_lag_id;
	return 0;
}

static bool
mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp,
			  struct net_device *lag_dev,
			  struct netdev_lag_upper_info *lag_upper_info)
{
	u16 lag_id;

	if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0)
		return false;
	if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
		return false;
	return true;
}

static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp,
				       u16 lag_id, u8 *p_port_index)
{
	int i;

	for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
		if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) {
			*p_port_index = i;
			return 0;
		}
	}
	return -EBUSY;
}

3216 3217 3218 3219 3220
static void
mlxsw_sp_port_pvid_vport_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
				  u16 lag_id)
{
	struct mlxsw_sp_port *mlxsw_sp_vport;
3221
	struct mlxsw_sp_fid *f;
3222 3223 3224 3225 3226

	mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1);
	if (WARN_ON(!mlxsw_sp_vport))
		return;

3227 3228 3229 3230 3231 3232 3233
	/* If vPort is assigned a RIF, then leave it since it's no
	 * longer valid.
	 */
	f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
	if (f)
		f->leave(mlxsw_sp_vport);

3234 3235 3236 3237 3238 3239 3240 3241
	mlxsw_sp_vport->lag_id = lag_id;
	mlxsw_sp_vport->lagged = 1;
}

static void
mlxsw_sp_port_pvid_vport_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port)
{
	struct mlxsw_sp_port *mlxsw_sp_vport;
3242
	struct mlxsw_sp_fid *f;
3243 3244 3245 3246 3247

	mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1);
	if (WARN_ON(!mlxsw_sp_vport))
		return;

3248 3249 3250 3251
	f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
	if (f)
		f->leave(mlxsw_sp_vport);

3252 3253 3254
	mlxsw_sp_vport->lagged = 0;
}

3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289
static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
				  struct net_device *lag_dev)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	struct mlxsw_sp_upper *lag;
	u16 lag_id;
	u8 port_index;
	int err;

	err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id);
	if (err)
		return err;
	lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
	if (!lag->ref_count) {
		err = mlxsw_sp_lag_create(mlxsw_sp, lag_id);
		if (err)
			return err;
		lag->dev = lag_dev;
	}

	err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index);
	if (err)
		return err;
	err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index);
	if (err)
		goto err_col_port_add;
	err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port, lag_id);
	if (err)
		goto err_col_port_enable;

	mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index,
				   mlxsw_sp_port->local_port);
	mlxsw_sp_port->lag_id = lag_id;
	mlxsw_sp_port->lagged = 1;
	lag->ref_count++;
3290 3291 3292

	mlxsw_sp_port_pvid_vport_lag_join(mlxsw_sp_port, lag_id);

3293 3294
	return 0;

3295 3296
err_col_port_enable:
	mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
3297 3298 3299 3300 3301 3302
err_col_port_add:
	if (!lag->ref_count)
		mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
	return err;
}

3303 3304
static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port,
				    struct net_device *lag_dev)
3305 3306 3307
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	u16 lag_id = mlxsw_sp_port->lag_id;
3308
	struct mlxsw_sp_upper *lag;
3309 3310

	if (!mlxsw_sp_port->lagged)
3311
		return;
3312 3313 3314
	lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
	WARN_ON(lag->ref_count == 0);

3315 3316
	mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, lag_id);
	mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
3317

3318 3319
	if (mlxsw_sp_port->bridged) {
		mlxsw_sp_port_active_vlans_del(mlxsw_sp_port);
3320
		mlxsw_sp_port_bridge_leave(mlxsw_sp_port);
3321 3322
	}

3323
	if (lag->ref_count == 1)
3324
		mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
3325 3326 3327 3328 3329

	mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id,
				     mlxsw_sp_port->local_port);
	mlxsw_sp_port->lagged = 0;
	lag->ref_count--;
3330 3331

	mlxsw_sp_port_pvid_vport_lag_leave(mlxsw_sp_port);
3332 3333
}

3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372
static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
				      u16 lag_id)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char sldr_pl[MLXSW_REG_SLDR_LEN];

	mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id,
					 mlxsw_sp_port->local_port);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
}

static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
					 u16 lag_id)
{
	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	char sldr_pl[MLXSW_REG_SLDR_LEN];

	mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id,
					    mlxsw_sp_port->local_port);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
}

static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port *mlxsw_sp_port,
				       bool lag_tx_enabled)
{
	if (lag_tx_enabled)
		return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port,
						  mlxsw_sp_port->lag_id);
	else
		return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port,
						     mlxsw_sp_port->lag_id);
}

static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port,
				     struct netdev_lag_lower_state_info *info)
{
	return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled);
}

3373 3374 3375 3376 3377 3378 3379
static int mlxsw_sp_port_vlan_link(struct mlxsw_sp_port *mlxsw_sp_port,
				   struct net_device *vlan_dev)
{
	struct mlxsw_sp_port *mlxsw_sp_vport;
	u16 vid = vlan_dev_vlan_id(vlan_dev);

	mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3380
	if (WARN_ON(!mlxsw_sp_vport))
3381 3382 3383 3384 3385 3386 3387
		return -EINVAL;

	mlxsw_sp_vport->dev = vlan_dev;

	return 0;
}

3388 3389
static void mlxsw_sp_port_vlan_unlink(struct mlxsw_sp_port *mlxsw_sp_port,
				      struct net_device *vlan_dev)
3390 3391 3392 3393 3394
{
	struct mlxsw_sp_port *mlxsw_sp_vport;
	u16 vid = vlan_dev_vlan_id(vlan_dev);

	mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3395
	if (WARN_ON(!mlxsw_sp_vport))
3396
		return;
3397 3398 3399 3400

	mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
}

3401 3402
static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev,
					       unsigned long event, void *ptr)
3403 3404 3405 3406 3407
{
	struct netdev_notifier_changeupper_info *info;
	struct mlxsw_sp_port *mlxsw_sp_port;
	struct net_device *upper_dev;
	struct mlxsw_sp *mlxsw_sp;
3408
	int err = 0;
3409 3410 3411 3412 3413 3414 3415 3416

	mlxsw_sp_port = netdev_priv(dev);
	mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
	info = ptr;

	switch (event) {
	case NETDEV_PRECHANGEUPPER:
		upper_dev = info->upper_dev;
3417 3418 3419 3420
		if (!is_vlan_dev(upper_dev) &&
		    !netif_is_lag_master(upper_dev) &&
		    !netif_is_bridge_master(upper_dev))
			return -EINVAL;
3421
		if (!info->linking)
3422
			break;
3423
		/* HW limitation forbids to put ports to multiple bridges. */
3424
		if (netif_is_bridge_master(upper_dev) &&
3425
		    !mlxsw_sp_master_bridge_check(mlxsw_sp, upper_dev))
3426
			return -EINVAL;
3427 3428 3429
		if (netif_is_lag_master(upper_dev) &&
		    !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev,
					       info->upper_info))
3430
			return -EINVAL;
3431 3432 3433 3434 3435
		if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev))
			return -EINVAL;
		if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) &&
		    !netif_is_lag_master(vlan_dev_real_dev(upper_dev)))
			return -EINVAL;
3436 3437 3438
		break;
	case NETDEV_CHANGEUPPER:
		upper_dev = info->upper_dev;
3439
		if (is_vlan_dev(upper_dev)) {
3440
			if (info->linking)
3441 3442
				err = mlxsw_sp_port_vlan_link(mlxsw_sp_port,
							      upper_dev);
3443
			else
3444 3445
				 mlxsw_sp_port_vlan_unlink(mlxsw_sp_port,
							   upper_dev);
3446
		} else if (netif_is_bridge_master(upper_dev)) {
3447 3448 3449 3450
			if (info->linking)
				err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,
								upper_dev);
			else
3451
				mlxsw_sp_port_bridge_leave(mlxsw_sp_port);
3452
		} else if (netif_is_lag_master(upper_dev)) {
3453
			if (info->linking)
3454 3455
				err = mlxsw_sp_port_lag_join(mlxsw_sp_port,
							     upper_dev);
3456
			else
3457 3458
				mlxsw_sp_port_lag_leave(mlxsw_sp_port,
							upper_dev);
3459 3460 3461
		} else {
			err = -EINVAL;
			WARN_ON(1);
3462 3463 3464 3465
		}
		break;
	}

3466
	return err;
3467 3468
}

3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489
static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev,
					       unsigned long event, void *ptr)
{
	struct netdev_notifier_changelowerstate_info *info;
	struct mlxsw_sp_port *mlxsw_sp_port;
	int err;

	mlxsw_sp_port = netdev_priv(dev);
	info = ptr;

	switch (event) {
	case NETDEV_CHANGELOWERSTATE:
		if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) {
			err = mlxsw_sp_port_lag_changed(mlxsw_sp_port,
							info->lower_state_info);
			if (err)
				netdev_err(dev, "Failed to reflect link aggregation lower state change\n");
		}
		break;
	}

3490
	return 0;
3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503
}

static int mlxsw_sp_netdevice_port_event(struct net_device *dev,
					 unsigned long event, void *ptr)
{
	switch (event) {
	case NETDEV_PRECHANGEUPPER:
	case NETDEV_CHANGEUPPER:
		return mlxsw_sp_netdevice_port_upper_event(dev, event, ptr);
	case NETDEV_CHANGELOWERSTATE:
		return mlxsw_sp_netdevice_port_lower_event(dev, event, ptr);
	}

3504
	return 0;
3505 3506
}

3507 3508 3509 3510 3511 3512 3513 3514 3515 3516
static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev,
					unsigned long event, void *ptr)
{
	struct net_device *dev;
	struct list_head *iter;
	int ret;

	netdev_for_each_lower_dev(lag_dev, dev, iter) {
		if (mlxsw_sp_port_dev_check(dev)) {
			ret = mlxsw_sp_netdevice_port_event(dev, event, ptr);
3517
			if (ret)
3518 3519 3520 3521
				return ret;
		}
	}

3522
	return 0;
3523 3524
}

3525 3526
static int mlxsw_sp_master_bridge_vlan_link(struct mlxsw_sp *mlxsw_sp,
					    struct net_device *vlan_dev)
3527
{
3528
	u16 fid = vlan_dev_vlan_id(vlan_dev);
3529
	struct mlxsw_sp_fid *f;
3530

3531 3532 3533 3534 3535
	f = mlxsw_sp_fid_find(mlxsw_sp, fid);
	if (!f) {
		f = mlxsw_sp_fid_create(mlxsw_sp, fid);
		if (IS_ERR(f))
			return PTR_ERR(f);
3536 3537
	}

3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549
	f->ref_count++;

	return 0;
}

static void mlxsw_sp_master_bridge_vlan_unlink(struct mlxsw_sp *mlxsw_sp,
					       struct net_device *vlan_dev)
{
	u16 fid = vlan_dev_vlan_id(vlan_dev);
	struct mlxsw_sp_fid *f;

	f = mlxsw_sp_fid_find(mlxsw_sp, fid);
3550 3551
	if (f && f->r)
		mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588
	if (f && --f->ref_count == 0)
		mlxsw_sp_fid_destroy(mlxsw_sp, f);
}

static int mlxsw_sp_netdevice_bridge_event(struct net_device *br_dev,
					   unsigned long event, void *ptr)
{
	struct netdev_notifier_changeupper_info *info;
	struct net_device *upper_dev;
	struct mlxsw_sp *mlxsw_sp;
	int err;

	mlxsw_sp = mlxsw_sp_lower_get(br_dev);
	if (!mlxsw_sp)
		return 0;
	if (br_dev != mlxsw_sp->master_bridge.dev)
		return 0;

	info = ptr;

	switch (event) {
	case NETDEV_CHANGEUPPER:
		upper_dev = info->upper_dev;
		if (!is_vlan_dev(upper_dev))
			break;
		if (info->linking) {
			err = mlxsw_sp_master_bridge_vlan_link(mlxsw_sp,
							       upper_dev);
			if (err)
				return err;
		} else {
			mlxsw_sp_master_bridge_vlan_unlink(mlxsw_sp, upper_dev);
		}
		break;
	}

	return 0;
3589 3590
}

3591
static u16 mlxsw_sp_avail_vfid_get(const struct mlxsw_sp *mlxsw_sp)
3592
{
3593
	return find_first_zero_bit(mlxsw_sp->vfids.mapped,
3594
				   MLXSW_SP_VFID_MAX);
3595 3596
}

3597
static int mlxsw_sp_vfid_op(struct mlxsw_sp *mlxsw_sp, u16 fid, bool create)
3598
{
3599
	char sfmr_pl[MLXSW_REG_SFMR_LEN];
3600

3601 3602
	mlxsw_reg_sfmr_pack(sfmr_pl, !create, fid, 0);
	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
3603 3604
}

3605
static void mlxsw_sp_vport_vfid_leave(struct mlxsw_sp_port *mlxsw_sp_vport);
3606

3607 3608
static struct mlxsw_sp_fid *mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp,
						 struct net_device *br_dev)
3609 3610
{
	struct device *dev = mlxsw_sp->bus_info->dev;
3611
	struct mlxsw_sp_fid *f;
3612
	u16 vfid, fid;
3613 3614
	int err;

3615
	vfid = mlxsw_sp_avail_vfid_get(mlxsw_sp);
3616
	if (vfid == MLXSW_SP_VFID_MAX) {
3617 3618 3619 3620
		dev_err(dev, "No available vFIDs\n");
		return ERR_PTR(-ERANGE);
	}

3621 3622
	fid = mlxsw_sp_vfid_to_fid(vfid);
	err = mlxsw_sp_vfid_op(mlxsw_sp, fid, true);
3623
	if (err) {
3624
		dev_err(dev, "Failed to create FID=%d\n", fid);
3625 3626 3627
		return ERR_PTR(err);
	}

3628 3629
	f = kzalloc(sizeof(*f), GFP_KERNEL);
	if (!f)
3630 3631
		goto err_allocate_vfid;

3632
	f->leave = mlxsw_sp_vport_vfid_leave;
3633 3634
	f->fid = fid;
	f->dev = br_dev;
3635

3636 3637
	list_add(&f->list, &mlxsw_sp->vfids.list);
	set_bit(vfid, mlxsw_sp->vfids.mapped);
3638

3639
	return f;
3640 3641

err_allocate_vfid:
3642
	mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
3643 3644 3645
	return ERR_PTR(-ENOMEM);
}

3646 3647
static void mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp,
				  struct mlxsw_sp_fid *f)
3648
{
3649
	u16 vfid = mlxsw_sp_fid_to_vfid(f->fid);
3650
	u16 fid = f->fid;
3651

3652
	clear_bit(vfid, mlxsw_sp->vfids.mapped);
3653
	list_del(&f->list);
3654

3655 3656
	if (f->r)
		mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
3657

3658
	kfree(f);
3659 3660

	mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
3661 3662
}

3663 3664 3665 3666 3667 3668 3669 3670 3671 3672
static int mlxsw_sp_vport_fid_map(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid,
				  bool valid)
{
	enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
	u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);

	return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, mt, valid, fid,
					    vid);
}

3673 3674
static int mlxsw_sp_vport_vfid_join(struct mlxsw_sp_port *mlxsw_sp_vport,
				    struct net_device *br_dev)
3675
{
3676
	struct mlxsw_sp_fid *f;
3677 3678
	int err;

3679
	f = mlxsw_sp_vfid_find(mlxsw_sp_vport->mlxsw_sp, br_dev);
3680
	if (!f) {
3681
		f = mlxsw_sp_vfid_create(mlxsw_sp_vport->mlxsw_sp, br_dev);
3682 3683
		if (IS_ERR(f))
			return PTR_ERR(f);
3684 3685
	}

3686 3687 3688
	err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, true);
	if (err)
		goto err_vport_flood_set;
3689

3690 3691
	err = mlxsw_sp_vport_fid_map(mlxsw_sp_vport, f->fid, true);
	if (err)
3692
		goto err_vport_fid_map;
3693

3694
	mlxsw_sp_vport_fid_set(mlxsw_sp_vport, f);
3695
	f->ref_count++;
3696

I
Ido Schimmel 已提交
3697 3698
	netdev_dbg(mlxsw_sp_vport->dev, "Joined FID=%d\n", f->fid);

3699
	return 0;
3700

3701 3702 3703
err_vport_fid_map:
	mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, false);
err_vport_flood_set:
3704
	if (!f->ref_count)
3705
		mlxsw_sp_vfid_destroy(mlxsw_sp_vport->mlxsw_sp, f);
3706 3707
	return err;
}
3708

3709
static void mlxsw_sp_vport_vfid_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
3710
{
3711
	struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3712

I
Ido Schimmel 已提交
3713 3714
	netdev_dbg(mlxsw_sp_vport->dev, "Left FID=%d\n", f->fid);

3715
	mlxsw_sp_vport_fid_map(mlxsw_sp_vport, f->fid, false);
3716

3717 3718
	mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, false);

3719 3720
	mlxsw_sp_port_fdb_flush(mlxsw_sp_vport, f->fid);

3721
	mlxsw_sp_vport_fid_set(mlxsw_sp_vport, NULL);
3722
	if (--f->ref_count == 0)
3723
		mlxsw_sp_vfid_destroy(mlxsw_sp_vport->mlxsw_sp, f);
3724 3725 3726 3727 3728
}

static int mlxsw_sp_vport_bridge_join(struct mlxsw_sp_port *mlxsw_sp_vport,
				      struct net_device *br_dev)
{
3729
	struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3730 3731 3732 3733
	u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
	struct net_device *dev = mlxsw_sp_vport->dev;
	int err;

3734 3735
	if (f && !WARN_ON(!f->leave))
		f->leave(mlxsw_sp_vport);
3736

3737
	err = mlxsw_sp_vport_vfid_join(mlxsw_sp_vport, br_dev);
3738
	if (err) {
3739
		netdev_err(dev, "Failed to join vFID\n");
3740
		return err;
3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754 3755 3756
	}

	err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
	if (err) {
		netdev_err(dev, "Failed to enable learning\n");
		goto err_port_vid_learning_set;
	}

	mlxsw_sp_vport->learning = 1;
	mlxsw_sp_vport->learning_sync = 1;
	mlxsw_sp_vport->uc_flood = 1;
	mlxsw_sp_vport->bridged = 1;

	return 0;

err_port_vid_learning_set:
3757
	mlxsw_sp_vport_vfid_leave(mlxsw_sp_vport);
3758 3759 3760
	return err;
}

3761
static void mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
3762 3763 3764 3765 3766
{
	u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);

	mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false);

3767
	mlxsw_sp_vport_vfid_leave(mlxsw_sp_vport);
3768 3769 3770 3771 3772 3773 3774

	mlxsw_sp_vport->learning = 0;
	mlxsw_sp_vport->learning_sync = 0;
	mlxsw_sp_vport->uc_flood = 0;
	mlxsw_sp_vport->bridged = 0;
}

3775 3776 3777 3778 3779 3780 3781 3782
static bool
mlxsw_sp_port_master_bridge_check(const struct mlxsw_sp_port *mlxsw_sp_port,
				  const struct net_device *br_dev)
{
	struct mlxsw_sp_port *mlxsw_sp_vport;

	list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list,
			    vport.list) {
3783
		struct net_device *dev = mlxsw_sp_vport_dev_get(mlxsw_sp_vport);
3784 3785

		if (dev && dev == br_dev)
3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799
			return false;
	}

	return true;
}

static int mlxsw_sp_netdevice_vport_event(struct net_device *dev,
					  unsigned long event, void *ptr,
					  u16 vid)
{
	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
	struct netdev_notifier_changeupper_info *info = ptr;
	struct mlxsw_sp_port *mlxsw_sp_vport;
	struct net_device *upper_dev;
3800
	int err = 0;
3801 3802 3803 3804 3805 3806 3807

	mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);

	switch (event) {
	case NETDEV_PRECHANGEUPPER:
		upper_dev = info->upper_dev;
		if (!netif_is_bridge_master(upper_dev))
3808
			return -EINVAL;
3809 3810
		if (!info->linking)
			break;
3811 3812 3813 3814 3815
		/* We can't have multiple VLAN interfaces configured on
		 * the same port and being members in the same bridge.
		 */
		if (!mlxsw_sp_port_master_bridge_check(mlxsw_sp_port,
						       upper_dev))
3816
			return -EINVAL;
3817 3818 3819 3820
		break;
	case NETDEV_CHANGEUPPER:
		upper_dev = info->upper_dev;
		if (info->linking) {
3821
			if (WARN_ON(!mlxsw_sp_vport))
3822
				return -EINVAL;
3823 3824 3825 3826
			err = mlxsw_sp_vport_bridge_join(mlxsw_sp_vport,
							 upper_dev);
		} else {
			if (!mlxsw_sp_vport)
3827
				return 0;
3828
			mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport);
3829 3830 3831
		}
	}

3832
	return err;
3833 3834
}

3835 3836 3837 3838 3839 3840 3841 3842 3843 3844 3845 3846
static int mlxsw_sp_netdevice_lag_vport_event(struct net_device *lag_dev,
					      unsigned long event, void *ptr,
					      u16 vid)
{
	struct net_device *dev;
	struct list_head *iter;
	int ret;

	netdev_for_each_lower_dev(lag_dev, dev, iter) {
		if (mlxsw_sp_port_dev_check(dev)) {
			ret = mlxsw_sp_netdevice_vport_event(dev, event, ptr,
							     vid);
3847
			if (ret)
3848 3849 3850 3851
				return ret;
		}
	}

3852
	return 0;
3853 3854
}

3855 3856 3857 3858 3859 3860
static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev,
					 unsigned long event, void *ptr)
{
	struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
	u16 vid = vlan_dev_vlan_id(vlan_dev);

3861 3862 3863 3864 3865 3866
	if (mlxsw_sp_port_dev_check(real_dev))
		return mlxsw_sp_netdevice_vport_event(real_dev, event, ptr,
						      vid);
	else if (netif_is_lag_master(real_dev))
		return mlxsw_sp_netdevice_lag_vport_event(real_dev, event, ptr,
							  vid);
3867

3868
	return 0;
3869 3870
}

3871 3872 3873 3874
static int mlxsw_sp_netdevice_event(struct notifier_block *unused,
				    unsigned long event, void *ptr)
{
	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3875
	int err = 0;
3876

3877 3878 3879
	if (event == NETDEV_CHANGEADDR || event == NETDEV_CHANGEMTU)
		err = mlxsw_sp_netdevice_router_port_event(dev);
	else if (mlxsw_sp_port_dev_check(dev))
3880 3881 3882
		err = mlxsw_sp_netdevice_port_event(dev, event, ptr);
	else if (netif_is_lag_master(dev))
		err = mlxsw_sp_netdevice_lag_event(dev, event, ptr);
3883 3884
	else if (netif_is_bridge_master(dev))
		err = mlxsw_sp_netdevice_bridge_event(dev, event, ptr);
3885 3886
	else if (is_vlan_dev(dev))
		err = mlxsw_sp_netdevice_vlan_event(dev, event, ptr);
3887

3888
	return notifier_from_errno(err);
3889 3890
}

3891 3892 3893 3894
static struct notifier_block mlxsw_sp_netdevice_nb __read_mostly = {
	.notifier_call = mlxsw_sp_netdevice_event,
};

3895 3896 3897 3898 3899
static struct notifier_block mlxsw_sp_inetaddr_nb __read_mostly = {
	.notifier_call = mlxsw_sp_inetaddr_event,
	.priority = 10,	/* Must be called before FIB notifier block */
};

3900 3901 3902 3903 3904
static int __init mlxsw_sp_module_init(void)
{
	int err;

	register_netdevice_notifier(&mlxsw_sp_netdevice_nb);
3905
	register_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
3906 3907 3908 3909 3910 3911 3912 3913 3914 3915 3916 3917 3918
	err = mlxsw_core_driver_register(&mlxsw_sp_driver);
	if (err)
		goto err_core_driver_register;
	return 0;

err_core_driver_register:
	unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb);
	return err;
}

static void __exit mlxsw_sp_module_exit(void)
{
	mlxsw_core_driver_unregister(&mlxsw_sp_driver);
3919
	unregister_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
3920 3921 3922 3923 3924 3925 3926 3927 3928 3929
	unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb);
}

module_init(mlxsw_sp_module_init);
module_exit(mlxsw_sp_module_exit);

MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
MODULE_DESCRIPTION("Mellanox Spectrum driver");
MODULE_MLXSW_DRIVER_ALIAS(MLXSW_DEVICE_KIND_SPECTRUM);