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tegrakernel/kernel/kernel-4.9/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c

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/*
* drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
* Copyright (c) 2015 Mellanox Technologies. All rights reserved.
* Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
* Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
* Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the names of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/skbuff.h>
#include <linux/if_vlan.h>
#include <linux/if_bridge.h>
#include <linux/workqueue.h>
#include <linux/jiffies.h>
#include <linux/rtnetlink.h>
#include <net/switchdev.h>
#include "spectrum.h"
#include "core.h"
#include "reg.h"
static u16 mlxsw_sp_port_vid_to_fid_get(struct mlxsw_sp_port *mlxsw_sp_port,
u16 vid)
{
struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_port);
u16 fid = vid;
fid = f ? f->fid : fid;
if (!fid)
fid = mlxsw_sp_port->pvid;
return fid;
}
static struct mlxsw_sp_port *
mlxsw_sp_port_orig_get(struct net_device *dev,
struct mlxsw_sp_port *mlxsw_sp_port)
{
struct mlxsw_sp_port *mlxsw_sp_vport;
u16 vid;
if (!is_vlan_dev(dev))
return mlxsw_sp_port;
vid = vlan_dev_vlan_id(dev);
mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
WARN_ON(!mlxsw_sp_vport);
return mlxsw_sp_vport;
}
static int mlxsw_sp_port_attr_get(struct net_device *dev,
struct switchdev_attr *attr)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
if (!mlxsw_sp_port)
return -EINVAL;
switch (attr->id) {
case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
attr->u.ppid.id_len = sizeof(mlxsw_sp->base_mac);
memcpy(&attr->u.ppid.id, &mlxsw_sp->base_mac,
attr->u.ppid.id_len);
break;
case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
attr->u.brport_flags =
(mlxsw_sp_port->learning ? BR_LEARNING : 0) |
(mlxsw_sp_port->learning_sync ? BR_LEARNING_SYNC : 0) |
(mlxsw_sp_port->uc_flood ? BR_FLOOD : 0);
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static int mlxsw_sp_port_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
u8 state)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
enum mlxsw_reg_spms_state spms_state;
char *spms_pl;
u16 vid;
int err;
switch (state) {
case BR_STATE_FORWARDING:
spms_state = MLXSW_REG_SPMS_STATE_FORWARDING;
break;
case BR_STATE_LEARNING:
spms_state = MLXSW_REG_SPMS_STATE_LEARNING;
break;
case BR_STATE_LISTENING: /* fall-through */
case BR_STATE_DISABLED: /* fall-through */
case BR_STATE_BLOCKING:
spms_state = MLXSW_REG_SPMS_STATE_DISCARDING;
break;
default:
BUG();
}
spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
if (!spms_pl)
return -ENOMEM;
mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port);
if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
} else {
for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
}
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl);
kfree(spms_pl);
return err;
}
static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
struct switchdev_trans *trans,
u8 state)
{
if (switchdev_trans_ph_prepare(trans))
return 0;
mlxsw_sp_port->stp_state = state;
return mlxsw_sp_port_stp_state_set(mlxsw_sp_port, state);
}
static int __mlxsw_sp_port_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
u16 idx_begin, u16 idx_end, bool uc_set,
bool bm_set)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
u16 local_port = mlxsw_sp_port->local_port;
enum mlxsw_flood_table_type table_type;
u16 range = idx_end - idx_begin + 1;
char *sftr_pl;
int err;
if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
else
table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;
sftr_pl = kmalloc(MLXSW_REG_SFTR_LEN, GFP_KERNEL);
if (!sftr_pl)
return -ENOMEM;
mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_UC, idx_begin,
table_type, range, local_port, uc_set);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
if (err)
goto buffer_out;
mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_BM, idx_begin,
table_type, range, local_port, bm_set);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
if (err)
goto err_flood_bm_set;
goto buffer_out;
err_flood_bm_set:
mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_UC, idx_begin,
table_type, range, local_port, !uc_set);
mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
buffer_out:
kfree(sftr_pl);
return err;
}
static int mlxsw_sp_port_uc_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
bool set)
{
struct net_device *dev = mlxsw_sp_port->dev;
u16 vid, last_visited_vid;
int err;
if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
u16 fid = mlxsw_sp_vport_fid_get(mlxsw_sp_port)->fid;
u16 vfid = mlxsw_sp_fid_to_vfid(fid);
return __mlxsw_sp_port_flood_set(mlxsw_sp_port, vfid, vfid,
set, true);
}
for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, set,
true);
if (err) {
last_visited_vid = vid;
goto err_port_flood_set;
}
}
return 0;
err_port_flood_set:
for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
__mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, !set, true);
netdev_err(dev, "Failed to configure unicast flooding\n");
return err;
}
int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid,
bool set)
{
u16 vfid;
/* In case of vFIDs, index into the flooding table is relative to
* the start of the vFIDs range.
*/
vfid = mlxsw_sp_fid_to_vfid(fid);
return __mlxsw_sp_port_flood_set(mlxsw_sp_vport, vfid, vfid, set, set);
}
static int mlxsw_sp_port_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
bool set)
{
u16 vid;
int err;
if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
return __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, vid,
set);
}
for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
err = __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, vid,
set);
if (err)
goto err_port_vid_learning_set;
}
return 0;
err_port_vid_learning_set:
for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
__mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, vid, !set);
return err;
}
static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port,
struct switchdev_trans *trans,
unsigned long brport_flags)
{
unsigned long learning = mlxsw_sp_port->learning ? BR_LEARNING : 0;
unsigned long uc_flood = mlxsw_sp_port->uc_flood ? BR_FLOOD : 0;
int err;
if (!mlxsw_sp_port->bridged)
return -EINVAL;
if (switchdev_trans_ph_prepare(trans))
return 0;
if ((uc_flood ^ brport_flags) & BR_FLOOD) {
err = mlxsw_sp_port_uc_flood_set(mlxsw_sp_port,
!mlxsw_sp_port->uc_flood);
if (err)
return err;
}
if ((learning ^ brport_flags) & BR_LEARNING) {
err = mlxsw_sp_port_learning_set(mlxsw_sp_port,
!mlxsw_sp_port->learning);
if (err)
goto err_port_learning_set;
}
mlxsw_sp_port->uc_flood = brport_flags & BR_FLOOD ? 1 : 0;
mlxsw_sp_port->learning = brport_flags & BR_LEARNING ? 1 : 0;
mlxsw_sp_port->learning_sync = brport_flags & BR_LEARNING_SYNC ? 1 : 0;
return 0;
err_port_learning_set:
if ((uc_flood ^ brport_flags) & BR_FLOOD)
mlxsw_sp_port_uc_flood_set(mlxsw_sp_port,
mlxsw_sp_port->uc_flood);
return err;
}
static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time)
{
char sfdat_pl[MLXSW_REG_SFDAT_LEN];
int err;
mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl);
if (err)
return err;
mlxsw_sp->ageing_time = ageing_time;
return 0;
}
static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port,
struct switchdev_trans *trans,
unsigned long ageing_clock_t)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000;
if (switchdev_trans_ph_prepare(trans)) {
if (ageing_time < MLXSW_SP_MIN_AGEING_TIME ||
ageing_time > MLXSW_SP_MAX_AGEING_TIME)
return -ERANGE;
else
return 0;
}
return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time);
}
static int mlxsw_sp_port_attr_br_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
struct switchdev_trans *trans,
struct net_device *orig_dev,
bool vlan_enabled)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
/* SWITCHDEV_TRANS_PREPARE phase */
if ((!vlan_enabled) && (mlxsw_sp->master_bridge.dev == orig_dev)) {
netdev_err(mlxsw_sp_port->dev, "Bridge must be vlan-aware\n");
return -EINVAL;
}
return 0;
}
static int mlxsw_sp_port_attr_set(struct net_device *dev,
const struct switchdev_attr *attr,
struct switchdev_trans *trans)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
int err = 0;
mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
if (!mlxsw_sp_port)
return -EINVAL;
switch (attr->id) {
case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans,
attr->u.stp_state);
break;
case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans,
attr->u.brport_flags);
break;
case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans,
attr->u.ageing_time);
break;
case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
err = mlxsw_sp_port_attr_br_vlan_set(mlxsw_sp_port, trans,
attr->orig_dev,
attr->u.vlan_filtering);
break;
default:
err = -EOPNOTSUPP;
break;
}
return err;
}
static int mlxsw_sp_fid_op(struct mlxsw_sp *mlxsw_sp, u16 fid, bool create)
{
char sfmr_pl[MLXSW_REG_SFMR_LEN];
mlxsw_reg_sfmr_pack(sfmr_pl, !create, fid, fid);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
}
static int mlxsw_sp_fid_map(struct mlxsw_sp *mlxsw_sp, u16 fid, bool valid)
{
enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_VID_TO_FID;
char svfa_pl[MLXSW_REG_SVFA_LEN];
mlxsw_reg_svfa_pack(svfa_pl, 0, mt, valid, fid, fid);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl);
}
static struct mlxsw_sp_fid *mlxsw_sp_fid_alloc(u16 fid)
{
struct mlxsw_sp_fid *f;
f = kzalloc(sizeof(*f), GFP_KERNEL);
if (!f)
return NULL;
f->fid = fid;
return f;
}
struct mlxsw_sp_fid *mlxsw_sp_fid_create(struct mlxsw_sp *mlxsw_sp, u16 fid)
{
struct mlxsw_sp_fid *f;
int err;
err = mlxsw_sp_fid_op(mlxsw_sp, fid, true);
if (err)
return ERR_PTR(err);
/* Although all the ports member in the FID might be using a
* {Port, VID} to FID mapping, we create a global VID-to-FID
* mapping. This allows a port to transition to VLAN mode,
* knowing the global mapping exists.
*/
err = mlxsw_sp_fid_map(mlxsw_sp, fid, true);
if (err)
goto err_fid_map;
f = mlxsw_sp_fid_alloc(fid);
if (!f) {
err = -ENOMEM;
goto err_allocate_fid;
}
list_add(&f->list, &mlxsw_sp->fids);
return f;
err_allocate_fid:
mlxsw_sp_fid_map(mlxsw_sp, fid, false);
err_fid_map:
mlxsw_sp_fid_op(mlxsw_sp, fid, false);
return ERR_PTR(err);
}
void mlxsw_sp_fid_destroy(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *f)
{
u16 fid = f->fid;
list_del(&f->list);
if (f->r)
mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
kfree(f);
mlxsw_sp_fid_map(mlxsw_sp, fid, false);
mlxsw_sp_fid_op(mlxsw_sp, fid, false);
}
static int __mlxsw_sp_port_fid_join(struct mlxsw_sp_port *mlxsw_sp_port,
u16 fid)
{
struct mlxsw_sp_fid *f;
if (test_bit(fid, mlxsw_sp_port->active_vlans))
return 0;
f = mlxsw_sp_fid_find(mlxsw_sp_port->mlxsw_sp, fid);
if (!f) {
f = mlxsw_sp_fid_create(mlxsw_sp_port->mlxsw_sp, fid);
if (IS_ERR(f))
return PTR_ERR(f);
}
f->ref_count++;
netdev_dbg(mlxsw_sp_port->dev, "Joined FID=%d\n", fid);
return 0;
}
static void __mlxsw_sp_port_fid_leave(struct mlxsw_sp_port *mlxsw_sp_port,
u16 fid)
{
struct mlxsw_sp_fid *f;
f = mlxsw_sp_fid_find(mlxsw_sp_port->mlxsw_sp, fid);
if (WARN_ON(!f))
return;
netdev_dbg(mlxsw_sp_port->dev, "Left FID=%d\n", fid);
mlxsw_sp_port_fdb_flush(mlxsw_sp_port, fid);
if (--f->ref_count == 0)
mlxsw_sp_fid_destroy(mlxsw_sp_port->mlxsw_sp, f);
}
static int mlxsw_sp_port_fid_map(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid,
bool valid)
{
enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
/* If port doesn't have vPorts, then it can use the global
* VID-to-FID mapping.
*/
if (list_empty(&mlxsw_sp_port->vports_list))
return 0;
return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, valid, fid, fid);
}
static int mlxsw_sp_port_fid_join(struct mlxsw_sp_port *mlxsw_sp_port,
u16 fid_begin, u16 fid_end)
{
int fid, err;
for (fid = fid_begin; fid <= fid_end; fid++) {
err = __mlxsw_sp_port_fid_join(mlxsw_sp_port, fid);
if (err)
goto err_port_fid_join;
}
err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, fid_begin, fid_end,
mlxsw_sp_port->uc_flood, true);
if (err)
goto err_port_flood_set;
for (fid = fid_begin; fid <= fid_end; fid++) {
err = mlxsw_sp_port_fid_map(mlxsw_sp_port, fid, true);
if (err)
goto err_port_fid_map;
}
return 0;
err_port_fid_map:
for (fid--; fid >= fid_begin; fid--)
mlxsw_sp_port_fid_map(mlxsw_sp_port, fid, false);
__mlxsw_sp_port_flood_set(mlxsw_sp_port, fid_begin, fid_end, false,
false);
err_port_flood_set:
fid = fid_end;
err_port_fid_join:
for (fid--; fid >= fid_begin; fid--)
__mlxsw_sp_port_fid_leave(mlxsw_sp_port, fid);
return err;
}
static void mlxsw_sp_port_fid_leave(struct mlxsw_sp_port *mlxsw_sp_port,
u16 fid_begin, u16 fid_end)
{
int fid;
for (fid = fid_begin; fid <= fid_end; fid++)
mlxsw_sp_port_fid_map(mlxsw_sp_port, fid, false);
__mlxsw_sp_port_flood_set(mlxsw_sp_port, fid_begin, fid_end, false,
false);
for (fid = fid_begin; fid <= fid_end; fid++)
__mlxsw_sp_port_fid_leave(mlxsw_sp_port, fid);
}
static int __mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port,
u16 vid)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char spvid_pl[MLXSW_REG_SPVID_LEN];
mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl);
}
static int mlxsw_sp_port_allow_untagged_set(struct mlxsw_sp_port *mlxsw_sp_port,
bool allow)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char spaft_pl[MLXSW_REG_SPAFT_LEN];
mlxsw_reg_spaft_pack(spaft_pl, mlxsw_sp_port->local_port, allow);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spaft), spaft_pl);
}
int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
{
struct net_device *dev = mlxsw_sp_port->dev;
int err;
if (!vid) {
err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, false);
if (err) {
netdev_err(dev, "Failed to disallow untagged traffic\n");
return err;
}
} else {
err = __mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid);
if (err) {
netdev_err(dev, "Failed to set PVID\n");
return err;
}
/* Only allow if not already allowed. */
if (!mlxsw_sp_port->pvid) {
err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port,
true);
if (err) {
netdev_err(dev, "Failed to allow untagged traffic\n");
goto err_port_allow_untagged_set;
}
}
}
mlxsw_sp_port->pvid = vid;
return 0;
err_port_allow_untagged_set:
__mlxsw_sp_port_pvid_set(mlxsw_sp_port, mlxsw_sp_port->pvid);
return err;
}
static int __mlxsw_sp_port_vlans_set(struct mlxsw_sp_port *mlxsw_sp_port,
u16 vid_begin, u16 vid_end, bool is_member,
bool untagged)
{
u16 vid, vid_e;
int err;
for (vid = vid_begin; vid <= vid_end;
vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
vid_end);
err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e,
is_member, untagged);
if (err)
return err;
}
return 0;
}
static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
u16 vid_begin, u16 vid_end,
bool learn_enable)
{
u16 vid, vid_e;
int err;
for (vid = vid_begin; vid <= vid_end;
vid += MLXSW_REG_SPVMLR_REC_MAX_COUNT) {
vid_e = min((u16) (vid + MLXSW_REG_SPVMLR_REC_MAX_COUNT - 1),
vid_end);
err = __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid,
vid_e, learn_enable);
if (err)
return err;
}
return 0;
}
static int __mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
u16 vid_begin, u16 vid_end,
bool flag_untagged, bool flag_pvid)
{
struct net_device *dev = mlxsw_sp_port->dev;
u16 vid, old_pvid;
int err;
if (!mlxsw_sp_port->bridged)
return -EINVAL;
err = mlxsw_sp_port_fid_join(mlxsw_sp_port, vid_begin, vid_end);
if (err) {
netdev_err(dev, "Failed to join FIDs\n");
return err;
}
err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
true, flag_untagged);
if (err) {
netdev_err(dev, "Unable to add VIDs %d-%d\n", vid_begin,
vid_end);
goto err_port_vlans_set;
}
old_pvid = mlxsw_sp_port->pvid;
if (flag_pvid && old_pvid != vid_begin) {
err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid_begin);
if (err) {
netdev_err(dev, "Unable to add PVID %d\n", vid_begin);
goto err_port_pvid_set;
}
} else if (!flag_pvid && old_pvid >= vid_begin && old_pvid <= vid_end) {
err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 0);
if (err) {
netdev_err(dev, "Unable to del PVID\n");
goto err_port_pvid_set;
}
}
err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid_begin, vid_end,
mlxsw_sp_port->learning);
if (err) {
netdev_err(dev, "Failed to set learning for VIDs %d-%d\n",
vid_begin, vid_end);
goto err_port_vid_learning_set;
}
/* Changing activity bits only if HW operation succeded */
for (vid = vid_begin; vid <= vid_end; vid++) {
set_bit(vid, mlxsw_sp_port->active_vlans);
if (flag_untagged)
set_bit(vid, mlxsw_sp_port->untagged_vlans);
else
clear_bit(vid, mlxsw_sp_port->untagged_vlans);
}
/* STP state change must be done after we set active VLANs */
err = mlxsw_sp_port_stp_state_set(mlxsw_sp_port,
mlxsw_sp_port->stp_state);
if (err) {
netdev_err(dev, "Failed to set STP state\n");
goto err_port_stp_state_set;
}
return 0;
err_port_stp_state_set:
for (vid = vid_begin; vid <= vid_end; vid++)
clear_bit(vid, mlxsw_sp_port->active_vlans);
mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid_begin, vid_end,
false);
err_port_vid_learning_set:
if (old_pvid != mlxsw_sp_port->pvid)
mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid);
err_port_pvid_set:
__mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, false,
false);
err_port_vlans_set:
mlxsw_sp_port_fid_leave(mlxsw_sp_port, vid_begin, vid_end);
return err;
}
static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
const struct switchdev_obj_port_vlan *vlan,
struct switchdev_trans *trans)
{
bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
if (switchdev_trans_ph_prepare(trans))
return 0;
return __mlxsw_sp_port_vlans_add(mlxsw_sp_port,
vlan->vid_begin, vlan->vid_end,
flag_untagged, flag_pvid);
}
static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic)
{
return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS :
MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_MLAG;
}
static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding)
{
return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT :
MLXSW_REG_SFD_OP_WRITE_REMOVE;
}
static int __mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
const char *mac, u16 fid, bool adding,
enum mlxsw_reg_sfd_rec_action action,
enum mlxsw_reg_sfd_rec_policy policy)
{
char *sfd_pl;
u8 num_rec;
int err;
sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
if (!sfd_pl)
return -ENOMEM;
mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
mlxsw_reg_sfd_uc_pack(sfd_pl, 0, policy, mac, fid, action, local_port);
num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
if (err)
goto out;
if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl))
err = -EBUSY;
out:
kfree(sfd_pl);
return err;
}
static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
const char *mac, u16 fid, bool adding,
bool dynamic)
{
return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, adding,
MLXSW_REG_SFD_REC_ACTION_NOP,
mlxsw_sp_sfd_rec_policy(dynamic));
}
int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid,
bool adding)
{
return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 0, mac, fid, adding,
MLXSW_REG_SFD_REC_ACTION_FORWARD_IP_ROUTER,
MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY);
}
static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
const char *mac, u16 fid, u16 lag_vid,
bool adding, bool dynamic)
{
char *sfd_pl;
u8 num_rec;
int err;
sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
if (!sfd_pl)
return -ENOMEM;
mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
lag_vid, lag_id);
num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
if (err)
goto out;
if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl))
err = -EBUSY;
out:
kfree(sfd_pl);
return err;
}
static int
mlxsw_sp_port_fdb_static_add(struct mlxsw_sp_port *mlxsw_sp_port,
const struct switchdev_obj_port_fdb *fdb,
struct switchdev_trans *trans)
{
u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, fdb->vid);
u16 lag_vid = 0;
if (switchdev_trans_ph_prepare(trans))
return 0;
if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
}
if (!mlxsw_sp_port->lagged)
return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port->mlxsw_sp,
mlxsw_sp_port->local_port,
fdb->addr, fid, true, false);
else
return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
mlxsw_sp_port->lag_id,
fdb->addr, fid, lag_vid,
true, false);
}
static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr,
u16 fid, u16 mid, bool adding)
{
char *sfd_pl;
u8 num_rec;
int err;
sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
if (!sfd_pl)
return -ENOMEM;
mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid,
MLXSW_REG_SFD_REC_ACTION_NOP, mid);
num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
if (err)
goto out;
if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl))
err = -EBUSY;
out:
kfree(sfd_pl);
return err;
}
static int mlxsw_sp_port_smid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mid,
bool add, bool clear_all_ports)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char *smid_pl;
int err, i;
smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
if (!smid_pl)
return -ENOMEM;
mlxsw_reg_smid_pack(smid_pl, mid, mlxsw_sp_port->local_port, add);
if (clear_all_ports) {
for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
if (mlxsw_sp->ports[i])
mlxsw_reg_smid_port_mask_set(smid_pl, i, 1);
}
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
kfree(smid_pl);
return err;
}
static struct mlxsw_sp_mid *__mlxsw_sp_mc_get(struct mlxsw_sp *mlxsw_sp,
const unsigned char *addr,
u16 fid)
{
struct mlxsw_sp_mid *mid;
list_for_each_entry(mid, &mlxsw_sp->br_mids.list, list) {
if (ether_addr_equal(mid->addr, addr) && mid->fid == fid)
return mid;
}
return NULL;
}
static struct mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp,
const unsigned char *addr,
u16 fid)
{
struct mlxsw_sp_mid *mid;
u16 mid_idx;
mid_idx = find_first_zero_bit(mlxsw_sp->br_mids.mapped,
MLXSW_SP_MID_MAX);
if (mid_idx == MLXSW_SP_MID_MAX)
return NULL;
mid = kzalloc(sizeof(*mid), GFP_KERNEL);
if (!mid)
return NULL;
set_bit(mid_idx, mlxsw_sp->br_mids.mapped);
ether_addr_copy(mid->addr, addr);
mid->fid = fid;
mid->mid = mid_idx;
mid->ref_count = 0;
list_add_tail(&mid->list, &mlxsw_sp->br_mids.list);
return mid;
}
static int __mlxsw_sp_mc_dec_ref(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_mid *mid)
{
if (--mid->ref_count == 0) {
list_del(&mid->list);
clear_bit(mid->mid, mlxsw_sp->br_mids.mapped);
kfree(mid);
return 1;
}
return 0;
}
static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port,
const struct switchdev_obj_port_mdb *mdb,
struct switchdev_trans *trans)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
struct net_device *dev = mlxsw_sp_port->dev;
struct mlxsw_sp_mid *mid;
u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, mdb->vid);
int err = 0;
if (switchdev_trans_ph_prepare(trans))
return 0;
mid = __mlxsw_sp_mc_get(mlxsw_sp, mdb->addr, fid);
if (!mid) {
mid = __mlxsw_sp_mc_alloc(mlxsw_sp, mdb->addr, fid);
if (!mid) {
netdev_err(dev, "Unable to allocate MC group\n");
return -ENOMEM;
}
}
mid->ref_count++;
err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true,
mid->ref_count == 1);
if (err) {
netdev_err(dev, "Unable to set SMID\n");
goto err_out;
}
if (mid->ref_count == 1) {
err = mlxsw_sp_port_mdb_op(mlxsw_sp, mdb->addr, fid, mid->mid,
true);
if (err) {
netdev_err(dev, "Unable to set MC SFD\n");
goto err_out;
}
}
return 0;
err_out:
__mlxsw_sp_mc_dec_ref(mlxsw_sp, mid);
return err;
}
static int mlxsw_sp_port_obj_add(struct net_device *dev,
const struct switchdev_obj *obj,
struct switchdev_trans *trans)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
int err = 0;
mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
if (!mlxsw_sp_port)
return -EINVAL;
switch (obj->id) {
case SWITCHDEV_OBJ_ID_PORT_VLAN:
if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
return 0;
err = mlxsw_sp_port_vlans_add(mlxsw_sp_port,
SWITCHDEV_OBJ_PORT_VLAN(obj),
trans);
break;
case SWITCHDEV_OBJ_ID_PORT_FDB:
err = mlxsw_sp_port_fdb_static_add(mlxsw_sp_port,
SWITCHDEV_OBJ_PORT_FDB(obj),
trans);
break;
case SWITCHDEV_OBJ_ID_PORT_MDB:
err = mlxsw_sp_port_mdb_add(mlxsw_sp_port,
SWITCHDEV_OBJ_PORT_MDB(obj),
trans);
break;
default:
err = -EOPNOTSUPP;
break;
}
return err;
}
static int __mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
u16 vid_begin, u16 vid_end)
{
u16 vid, pvid;
if (!mlxsw_sp_port->bridged)
return -EINVAL;
mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid_begin, vid_end,
false);
pvid = mlxsw_sp_port->pvid;
if (pvid >= vid_begin && pvid <= vid_end)
mlxsw_sp_port_pvid_set(mlxsw_sp_port, 0);
__mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, false,
false);
mlxsw_sp_port_fid_leave(mlxsw_sp_port, vid_begin, vid_end);
/* Changing activity bits only if HW operation succeded */
for (vid = vid_begin; vid <= vid_end; vid++)
clear_bit(vid, mlxsw_sp_port->active_vlans);
return 0;
}
static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
const struct switchdev_obj_port_vlan *vlan)
{
return __mlxsw_sp_port_vlans_del(mlxsw_sp_port, vlan->vid_begin,
vlan->vid_end);
}
void mlxsw_sp_port_active_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port)
{
u16 vid;
for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
__mlxsw_sp_port_vlans_del(mlxsw_sp_port, vid, vid);
}
static int
mlxsw_sp_port_fdb_static_del(struct mlxsw_sp_port *mlxsw_sp_port,
const struct switchdev_obj_port_fdb *fdb)
{
u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, fdb->vid);
u16 lag_vid = 0;
if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
}
if (!mlxsw_sp_port->lagged)
return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port->mlxsw_sp,
mlxsw_sp_port->local_port,
fdb->addr, fid,
false, false);
else
return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
mlxsw_sp_port->lag_id,
fdb->addr, fid, lag_vid,
false, false);
}
static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
const struct switchdev_obj_port_mdb *mdb)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
struct net_device *dev = mlxsw_sp_port->dev;
struct mlxsw_sp_mid *mid;
u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, mdb->vid);
u16 mid_idx;
int err = 0;
mid = __mlxsw_sp_mc_get(mlxsw_sp, mdb->addr, fid);
if (!mid) {
netdev_err(dev, "Unable to remove port from MC DB\n");
return -EINVAL;
}
err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false, false);
if (err)
netdev_err(dev, "Unable to remove port from SMID\n");
mid_idx = mid->mid;
if (__mlxsw_sp_mc_dec_ref(mlxsw_sp, mid)) {
err = mlxsw_sp_port_mdb_op(mlxsw_sp, mdb->addr, fid, mid_idx,
false);
if (err)
netdev_err(dev, "Unable to remove MC SFD\n");
}
return err;
}
static int mlxsw_sp_port_obj_del(struct net_device *dev,
const struct switchdev_obj *obj)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
int err = 0;
mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
if (!mlxsw_sp_port)
return -EINVAL;
switch (obj->id) {
case SWITCHDEV_OBJ_ID_PORT_VLAN:
if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
return 0;
err = mlxsw_sp_port_vlans_del(mlxsw_sp_port,
SWITCHDEV_OBJ_PORT_VLAN(obj));
break;
case SWITCHDEV_OBJ_ID_PORT_FDB:
err = mlxsw_sp_port_fdb_static_del(mlxsw_sp_port,
SWITCHDEV_OBJ_PORT_FDB(obj));
break;
case SWITCHDEV_OBJ_ID_PORT_MDB:
err = mlxsw_sp_port_mdb_del(mlxsw_sp_port,
SWITCHDEV_OBJ_PORT_MDB(obj));
break;
default:
err = -EOPNOTSUPP;
break;
}
return err;
}
static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp,
u16 lag_id)
{
struct mlxsw_sp_port *mlxsw_sp_port;
struct mlxsw_resources *resources;
int i;
resources = mlxsw_core_resources_get(mlxsw_sp->core);
for (i = 0; i < resources->max_ports_in_lag; i++) {
mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
if (mlxsw_sp_port)
return mlxsw_sp_port;
}
return NULL;
}
static int mlxsw_sp_port_fdb_dump(struct mlxsw_sp_port *mlxsw_sp_port,
struct switchdev_obj_port_fdb *fdb,
switchdev_obj_dump_cb_t *cb,
struct net_device *orig_dev)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
struct mlxsw_sp_port *tmp;
struct mlxsw_sp_fid *f;
u16 vport_fid;
char *sfd_pl;
char mac[ETH_ALEN];
u16 fid;
u8 local_port;
u16 lag_id;
u8 num_rec;
int stored_err = 0;
int i;
int err;
sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
if (!sfd_pl)
return -ENOMEM;
f = mlxsw_sp_vport_fid_get(mlxsw_sp_port);
vport_fid = f ? f->fid : 0;
mlxsw_reg_sfd_pack(sfd_pl, MLXSW_REG_SFD_OP_QUERY_DUMP, 0);
do {
mlxsw_reg_sfd_num_rec_set(sfd_pl, MLXSW_REG_SFD_REC_MAX_COUNT);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
if (err)
goto out;
num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
/* Even in case of error, we have to run the dump to the end
* so the session in firmware is finished.
*/
if (stored_err)
continue;
for (i = 0; i < num_rec; i++) {
switch (mlxsw_reg_sfd_rec_type_get(sfd_pl, i)) {
case MLXSW_REG_SFD_REC_TYPE_UNICAST:
mlxsw_reg_sfd_uc_unpack(sfd_pl, i, mac, &fid,
&local_port);
if (local_port == mlxsw_sp_port->local_port) {
if (vport_fid && vport_fid == fid)
fdb->vid = 0;
else if (!vport_fid &&
!mlxsw_sp_fid_is_vfid(fid))
fdb->vid = fid;
else
continue;
ether_addr_copy(fdb->addr, mac);
fdb->ndm_state = NUD_REACHABLE;
err = cb(&fdb->obj);
if (err)
stored_err = err;
}
break;
case MLXSW_REG_SFD_REC_TYPE_UNICAST_LAG:
mlxsw_reg_sfd_uc_lag_unpack(sfd_pl, i,
mac, &fid, &lag_id);
tmp = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
if (tmp && tmp->local_port ==
mlxsw_sp_port->local_port) {
/* LAG records can only point to LAG
* devices or VLAN devices on top.
*/
if (!netif_is_lag_master(orig_dev) &&
!is_vlan_dev(orig_dev))
continue;
if (vport_fid && vport_fid == fid)
fdb->vid = 0;
else if (!vport_fid &&
!mlxsw_sp_fid_is_vfid(fid))
fdb->vid = fid;
else
continue;
ether_addr_copy(fdb->addr, mac);
fdb->ndm_state = NUD_REACHABLE;
err = cb(&fdb->obj);
if (err)
stored_err = err;
}
break;
}
}
} while (num_rec == MLXSW_REG_SFD_REC_MAX_COUNT);
out:
kfree(sfd_pl);
return stored_err ? stored_err : err;
}
static int mlxsw_sp_port_vlan_dump(struct mlxsw_sp_port *mlxsw_sp_port,
struct switchdev_obj_port_vlan *vlan,
switchdev_obj_dump_cb_t *cb)
{
u16 vid;
int err = 0;
if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
vlan->flags = 0;
vlan->vid_begin = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
vlan->vid_end = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
return cb(&vlan->obj);
}
for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
vlan->flags = 0;
if (vid == mlxsw_sp_port->pvid)
vlan->flags |= BRIDGE_VLAN_INFO_PVID;
if (test_bit(vid, mlxsw_sp_port->untagged_vlans))
vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED;
vlan->vid_begin = vid;
vlan->vid_end = vid;
err = cb(&vlan->obj);
if (err)
break;
}
return err;
}
static int mlxsw_sp_port_obj_dump(struct net_device *dev,
struct switchdev_obj *obj,
switchdev_obj_dump_cb_t *cb)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
int err = 0;
mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
if (!mlxsw_sp_port)
return -EINVAL;
switch (obj->id) {
case SWITCHDEV_OBJ_ID_PORT_VLAN:
err = mlxsw_sp_port_vlan_dump(mlxsw_sp_port,
SWITCHDEV_OBJ_PORT_VLAN(obj), cb);
break;
case SWITCHDEV_OBJ_ID_PORT_FDB:
err = mlxsw_sp_port_fdb_dump(mlxsw_sp_port,
SWITCHDEV_OBJ_PORT_FDB(obj), cb,
obj->orig_dev);
break;
default:
err = -EOPNOTSUPP;
break;
}
return err;
}
static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = {
.switchdev_port_attr_get = mlxsw_sp_port_attr_get,
.switchdev_port_attr_set = mlxsw_sp_port_attr_set,
.switchdev_port_obj_add = mlxsw_sp_port_obj_add,
.switchdev_port_obj_del = mlxsw_sp_port_obj_del,
.switchdev_port_obj_dump = mlxsw_sp_port_obj_dump,
};
static void mlxsw_sp_fdb_call_notifiers(bool learning_sync, bool adding,
char *mac, u16 vid,
struct net_device *dev)
{
struct switchdev_notifier_fdb_info info;
unsigned long notifier_type;
if (learning_sync) {
info.addr = mac;
info.vid = vid;
notifier_type = adding ? SWITCHDEV_FDB_ADD : SWITCHDEV_FDB_DEL;
call_switchdev_notifiers(notifier_type, dev, &info.info);
}
}
static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
char *sfn_pl, int rec_index,
bool adding)
{
struct mlxsw_sp_port *mlxsw_sp_port;
char mac[ETH_ALEN];
u8 local_port;
u16 vid, fid;
bool do_notification = true;
int err;
mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
mlxsw_sp_port = mlxsw_sp->ports[local_port];
if (!mlxsw_sp_port) {
dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n");
goto just_remove;
}
if (mlxsw_sp_fid_is_vfid(fid)) {
struct mlxsw_sp_port *mlxsw_sp_vport;
mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_fid(mlxsw_sp_port,
fid);
if (!mlxsw_sp_vport) {
netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
goto just_remove;
}
vid = 0;
/* Override the physical port with the vPort. */
mlxsw_sp_port = mlxsw_sp_vport;
} else {
vid = fid;
}
do_fdb_op:
err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid,
adding, true);
if (err) {
dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n");
return;
}
if (!do_notification)
return;
mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning_sync,
adding, mac, vid, mlxsw_sp_port->dev);
return;
just_remove:
adding = false;
do_notification = false;
goto do_fdb_op;
}
static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
char *sfn_pl, int rec_index,
bool adding)
{
struct mlxsw_sp_port *mlxsw_sp_port;
struct net_device *dev;
char mac[ETH_ALEN];
u16 lag_vid = 0;
u16 lag_id;
u16 vid, fid;
bool do_notification = true;
int err;
mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id);
mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
if (!mlxsw_sp_port) {
dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n");
goto just_remove;
}
if (mlxsw_sp_fid_is_vfid(fid)) {
struct mlxsw_sp_port *mlxsw_sp_vport;
mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_fid(mlxsw_sp_port,
fid);
if (!mlxsw_sp_vport) {
netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
goto just_remove;
}
lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
dev = mlxsw_sp_vport->dev;
vid = 0;
/* Override the physical port with the vPort. */
mlxsw_sp_port = mlxsw_sp_vport;
} else {
dev = mlxsw_sp_lag_get(mlxsw_sp, lag_id)->dev;
vid = fid;
}
do_fdb_op:
err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
adding, true);
if (err) {
dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n");
return;
}
if (!do_notification)
return;
mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning_sync, adding, mac,
vid, dev);
return;
just_remove:
adding = false;
do_notification = false;
goto do_fdb_op;
}
static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
char *sfn_pl, int rec_index)
{
switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) {
case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC:
mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
rec_index, true);
break;
case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC:
mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
rec_index, false);
break;
case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG:
mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
rec_index, true);
break;
case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG:
mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
rec_index, false);
break;
}
}
static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp)
{
mlxsw_core_schedule_dw(&mlxsw_sp->fdb_notify.dw,
msecs_to_jiffies(mlxsw_sp->fdb_notify.interval));
}
static void mlxsw_sp_fdb_notify_work(struct work_struct *work)
{
struct mlxsw_sp *mlxsw_sp;
char *sfn_pl;
u8 num_rec;
int i;
int err;
sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL);
if (!sfn_pl)
return;
mlxsw_sp = container_of(work, struct mlxsw_sp, fdb_notify.dw.work);
rtnl_lock();
mlxsw_reg_sfn_pack(sfn_pl);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl);
if (err) {
dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n");
goto out;
}
num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl);
for (i = 0; i < num_rec; i++)
mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i);
out:
rtnl_unlock();
kfree(sfn_pl);
mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
}
static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
{
int err;
err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME);
if (err) {
dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n");
return err;
}
INIT_DELAYED_WORK(&mlxsw_sp->fdb_notify.dw, mlxsw_sp_fdb_notify_work);
mlxsw_sp->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL;
mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
return 0;
}
static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
{
cancel_delayed_work_sync(&mlxsw_sp->fdb_notify.dw);
}
int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
{
return mlxsw_sp_fdb_init(mlxsw_sp);
}
void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp)
{
mlxsw_sp_fdb_fini(mlxsw_sp);
}
void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
mlxsw_sp_port->dev->switchdev_ops = &mlxsw_sp_port_switchdev_ops;
}
void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port)
{
}
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