blob: bbd238e50f05488b3bcdfc133cb08d69bcec7c3b [file] [log] [blame]
/*
* drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c
* Copyright (c) 2017 Mellanox Technologies. All rights reserved.
* Copyright (c) 2017 Ido Schimmel <idosch@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/bitops.h>
#include <linux/if_vlan.h>
#include <linux/if_bridge.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include "spectrum.h"
#include "reg.h"
struct mlxsw_sp_fid_family;
struct mlxsw_sp_fid_core {
struct mlxsw_sp_fid_family *fid_family_arr[MLXSW_SP_FID_TYPE_MAX];
unsigned int *port_fid_mappings;
};
struct mlxsw_sp_fid {
struct list_head list;
struct mlxsw_sp_rif *rif;
unsigned int ref_count;
u16 fid_index;
struct mlxsw_sp_fid_family *fid_family;
};
struct mlxsw_sp_fid_8021q {
struct mlxsw_sp_fid common;
u16 vid;
};
struct mlxsw_sp_fid_8021d {
struct mlxsw_sp_fid common;
int br_ifindex;
};
struct mlxsw_sp_flood_table {
enum mlxsw_sp_flood_type packet_type;
enum mlxsw_reg_sfgc_bridge_type bridge_type;
enum mlxsw_flood_table_type table_type;
int table_index;
};
struct mlxsw_sp_fid_ops {
void (*setup)(struct mlxsw_sp_fid *fid, const void *arg);
int (*configure)(struct mlxsw_sp_fid *fid);
void (*deconfigure)(struct mlxsw_sp_fid *fid);
int (*index_alloc)(struct mlxsw_sp_fid *fid, const void *arg,
u16 *p_fid_index);
bool (*compare)(const struct mlxsw_sp_fid *fid,
const void *arg);
u16 (*flood_index)(const struct mlxsw_sp_fid *fid);
int (*port_vid_map)(struct mlxsw_sp_fid *fid,
struct mlxsw_sp_port *port, u16 vid);
void (*port_vid_unmap)(struct mlxsw_sp_fid *fid,
struct mlxsw_sp_port *port, u16 vid);
};
struct mlxsw_sp_fid_family {
enum mlxsw_sp_fid_type type;
size_t fid_size;
u16 start_index;
u16 end_index;
struct list_head fids_list;
unsigned long *fids_bitmap;
const struct mlxsw_sp_flood_table *flood_tables;
int nr_flood_tables;
enum mlxsw_sp_rif_type rif_type;
const struct mlxsw_sp_fid_ops *ops;
struct mlxsw_sp *mlxsw_sp;
};
static const int mlxsw_sp_sfgc_uc_packet_types[MLXSW_REG_SFGC_TYPE_MAX] = {
[MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST] = 1,
};
static const int mlxsw_sp_sfgc_bc_packet_types[MLXSW_REG_SFGC_TYPE_MAX] = {
[MLXSW_REG_SFGC_TYPE_BROADCAST] = 1,
[MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_NON_IP] = 1,
[MLXSW_REG_SFGC_TYPE_IPV4_LINK_LOCAL] = 1,
[MLXSW_REG_SFGC_TYPE_IPV6_ALL_HOST] = 1,
};
static const int mlxsw_sp_sfgc_mc_packet_types[MLXSW_REG_SFGC_TYPE_MAX] = {
[MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_IPV4] = 1,
[MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_IPV6] = 1,
};
static const int *mlxsw_sp_packet_type_sfgc_types[] = {
[MLXSW_SP_FLOOD_TYPE_UC] = mlxsw_sp_sfgc_uc_packet_types,
[MLXSW_SP_FLOOD_TYPE_BC] = mlxsw_sp_sfgc_bc_packet_types,
[MLXSW_SP_FLOOD_TYPE_MC] = mlxsw_sp_sfgc_mc_packet_types,
};
static const struct mlxsw_sp_flood_table *
mlxsw_sp_fid_flood_table_lookup(const struct mlxsw_sp_fid *fid,
enum mlxsw_sp_flood_type packet_type)
{
struct mlxsw_sp_fid_family *fid_family = fid->fid_family;
int i;
for (i = 0; i < fid_family->nr_flood_tables; i++) {
if (fid_family->flood_tables[i].packet_type != packet_type)
continue;
return &fid_family->flood_tables[i];
}
return NULL;
}
int mlxsw_sp_fid_flood_set(struct mlxsw_sp_fid *fid,
enum mlxsw_sp_flood_type packet_type, u8 local_port,
bool member)
{
struct mlxsw_sp_fid_family *fid_family = fid->fid_family;
const struct mlxsw_sp_fid_ops *ops = fid_family->ops;
const struct mlxsw_sp_flood_table *flood_table;
char *sftr_pl;
int err;
if (WARN_ON(!fid_family->flood_tables || !ops->flood_index))
return -EINVAL;
flood_table = mlxsw_sp_fid_flood_table_lookup(fid, packet_type);
if (!flood_table)
return -ESRCH;
sftr_pl = kmalloc(MLXSW_REG_SFTR_LEN, GFP_KERNEL);
if (!sftr_pl)
return -ENOMEM;
mlxsw_reg_sftr_pack(sftr_pl, flood_table->table_index,
ops->flood_index(fid), flood_table->table_type, 1,
local_port, member);
err = mlxsw_reg_write(fid_family->mlxsw_sp->core, MLXSW_REG(sftr),
sftr_pl);
kfree(sftr_pl);
return err;
}
int mlxsw_sp_fid_port_vid_map(struct mlxsw_sp_fid *fid,
struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
{
if (WARN_ON(!fid->fid_family->ops->port_vid_map))
return -EINVAL;
return fid->fid_family->ops->port_vid_map(fid, mlxsw_sp_port, vid);
}
void mlxsw_sp_fid_port_vid_unmap(struct mlxsw_sp_fid *fid,
struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
{
fid->fid_family->ops->port_vid_unmap(fid, mlxsw_sp_port, vid);
}
enum mlxsw_sp_rif_type mlxsw_sp_fid_rif_type(const struct mlxsw_sp_fid *fid)
{
return fid->fid_family->rif_type;
}
u16 mlxsw_sp_fid_index(const struct mlxsw_sp_fid *fid)
{
return fid->fid_index;
}
enum mlxsw_sp_fid_type mlxsw_sp_fid_type(const struct mlxsw_sp_fid *fid)
{
return fid->fid_family->type;
}
void mlxsw_sp_fid_rif_set(struct mlxsw_sp_fid *fid, struct mlxsw_sp_rif *rif)
{
fid->rif = rif;
}
enum mlxsw_sp_rif_type
mlxsw_sp_fid_type_rif_type(const struct mlxsw_sp *mlxsw_sp,
enum mlxsw_sp_fid_type type)
{
struct mlxsw_sp_fid_core *fid_core = mlxsw_sp->fid_core;
return fid_core->fid_family_arr[type]->rif_type;
}
static struct mlxsw_sp_fid_8021q *
mlxsw_sp_fid_8021q_fid(const struct mlxsw_sp_fid *fid)
{
return container_of(fid, struct mlxsw_sp_fid_8021q, common);
}
u16 mlxsw_sp_fid_8021q_vid(const struct mlxsw_sp_fid *fid)
{
return mlxsw_sp_fid_8021q_fid(fid)->vid;
}
static void mlxsw_sp_fid_8021q_setup(struct mlxsw_sp_fid *fid, const void *arg)
{
u16 vid = *(u16 *) arg;
mlxsw_sp_fid_8021q_fid(fid)->vid = vid;
}
static enum mlxsw_reg_sfmr_op mlxsw_sp_sfmr_op(bool valid)
{
return valid ? MLXSW_REG_SFMR_OP_CREATE_FID :
MLXSW_REG_SFMR_OP_DESTROY_FID;
}
static int mlxsw_sp_fid_op(struct mlxsw_sp *mlxsw_sp, u16 fid_index,
u16 fid_offset, bool valid)
{
char sfmr_pl[MLXSW_REG_SFMR_LEN];
mlxsw_reg_sfmr_pack(sfmr_pl, mlxsw_sp_sfmr_op(valid), fid_index,
fid_offset);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
}
static int mlxsw_sp_fid_vid_map(struct mlxsw_sp *mlxsw_sp, u16 fid_index,
u16 vid, 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_index, vid);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl);
}
static int __mlxsw_sp_fid_port_vid_map(struct mlxsw_sp *mlxsw_sp, u16 fid_index,
u8 local_port, u16 vid, bool valid)
{
enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
char svfa_pl[MLXSW_REG_SVFA_LEN];
mlxsw_reg_svfa_pack(svfa_pl, local_port, mt, valid, fid_index, vid);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl);
}
static int mlxsw_sp_fid_8021q_configure(struct mlxsw_sp_fid *fid)
{
struct mlxsw_sp *mlxsw_sp = fid->fid_family->mlxsw_sp;
struct mlxsw_sp_fid_8021q *fid_8021q;
int err;
err = mlxsw_sp_fid_op(mlxsw_sp, fid->fid_index, fid->fid_index, true);
if (err)
return err;
fid_8021q = mlxsw_sp_fid_8021q_fid(fid);
err = mlxsw_sp_fid_vid_map(mlxsw_sp, fid->fid_index, fid_8021q->vid,
true);
if (err)
goto err_fid_map;
return 0;
err_fid_map:
mlxsw_sp_fid_op(mlxsw_sp, fid->fid_index, 0, false);
return err;
}
static void mlxsw_sp_fid_8021q_deconfigure(struct mlxsw_sp_fid *fid)
{
struct mlxsw_sp *mlxsw_sp = fid->fid_family->mlxsw_sp;
struct mlxsw_sp_fid_8021q *fid_8021q;
fid_8021q = mlxsw_sp_fid_8021q_fid(fid);
mlxsw_sp_fid_vid_map(mlxsw_sp, fid->fid_index, fid_8021q->vid, false);
mlxsw_sp_fid_op(mlxsw_sp, fid->fid_index, 0, false);
}
static int mlxsw_sp_fid_8021q_index_alloc(struct mlxsw_sp_fid *fid,
const void *arg, u16 *p_fid_index)
{
struct mlxsw_sp_fid_family *fid_family = fid->fid_family;
u16 vid = *(u16 *) arg;
/* Use 1:1 mapping for simplicity although not a must */
if (vid < fid_family->start_index || vid > fid_family->end_index)
return -EINVAL;
*p_fid_index = vid;
return 0;
}
static bool
mlxsw_sp_fid_8021q_compare(const struct mlxsw_sp_fid *fid, const void *arg)
{
u16 vid = *(u16 *) arg;
return mlxsw_sp_fid_8021q_fid(fid)->vid == vid;
}
static u16 mlxsw_sp_fid_8021q_flood_index(const struct mlxsw_sp_fid *fid)
{
return fid->fid_index;
}
static int mlxsw_sp_fid_8021q_port_vid_map(struct mlxsw_sp_fid *fid,
struct mlxsw_sp_port *mlxsw_sp_port,
u16 vid)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
u8 local_port = mlxsw_sp_port->local_port;
/* In case there are no {Port, VID} => FID mappings on the port,
* we can use the global VID => FID mapping we created when the
* FID was configured.
*/
if (mlxsw_sp->fid_core->port_fid_mappings[local_port] == 0)
return 0;
return __mlxsw_sp_fid_port_vid_map(mlxsw_sp, fid->fid_index, local_port,
vid, true);
}
static void
mlxsw_sp_fid_8021q_port_vid_unmap(struct mlxsw_sp_fid *fid,
struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
u8 local_port = mlxsw_sp_port->local_port;
if (mlxsw_sp->fid_core->port_fid_mappings[local_port] == 0)
return;
__mlxsw_sp_fid_port_vid_map(mlxsw_sp, fid->fid_index, local_port, vid,
false);
}
static const struct mlxsw_sp_fid_ops mlxsw_sp_fid_8021q_ops = {
.setup = mlxsw_sp_fid_8021q_setup,
.configure = mlxsw_sp_fid_8021q_configure,
.deconfigure = mlxsw_sp_fid_8021q_deconfigure,
.index_alloc = mlxsw_sp_fid_8021q_index_alloc,
.compare = mlxsw_sp_fid_8021q_compare,
.flood_index = mlxsw_sp_fid_8021q_flood_index,
.port_vid_map = mlxsw_sp_fid_8021q_port_vid_map,
.port_vid_unmap = mlxsw_sp_fid_8021q_port_vid_unmap,
};
static const struct mlxsw_sp_flood_table mlxsw_sp_fid_8021q_flood_tables[] = {
{
.packet_type = MLXSW_SP_FLOOD_TYPE_UC,
.bridge_type = MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID,
.table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFSET,
.table_index = 0,
},
{
.packet_type = MLXSW_SP_FLOOD_TYPE_MC,
.bridge_type = MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID,
.table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFSET,
.table_index = 1,
},
{
.packet_type = MLXSW_SP_FLOOD_TYPE_BC,
.bridge_type = MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID,
.table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFSET,
.table_index = 2,
},
};
/* Range and flood configuration must match mlxsw_config_profile */
static const struct mlxsw_sp_fid_family mlxsw_sp_fid_8021q_family = {
.type = MLXSW_SP_FID_TYPE_8021Q,
.fid_size = sizeof(struct mlxsw_sp_fid_8021q),
.start_index = 1,
.end_index = VLAN_VID_MASK,
.flood_tables = mlxsw_sp_fid_8021q_flood_tables,
.nr_flood_tables = ARRAY_SIZE(mlxsw_sp_fid_8021q_flood_tables),
.rif_type = MLXSW_SP_RIF_TYPE_VLAN,
.ops = &mlxsw_sp_fid_8021q_ops,
};
static struct mlxsw_sp_fid_8021d *
mlxsw_sp_fid_8021d_fid(const struct mlxsw_sp_fid *fid)
{
return container_of(fid, struct mlxsw_sp_fid_8021d, common);
}
static void mlxsw_sp_fid_8021d_setup(struct mlxsw_sp_fid *fid, const void *arg)
{
int br_ifindex = *(int *) arg;
mlxsw_sp_fid_8021d_fid(fid)->br_ifindex = br_ifindex;
}
static int mlxsw_sp_fid_8021d_configure(struct mlxsw_sp_fid *fid)
{
struct mlxsw_sp_fid_family *fid_family = fid->fid_family;
return mlxsw_sp_fid_op(fid_family->mlxsw_sp, fid->fid_index, 0, true);
}
static void mlxsw_sp_fid_8021d_deconfigure(struct mlxsw_sp_fid *fid)
{
mlxsw_sp_fid_op(fid->fid_family->mlxsw_sp, fid->fid_index, 0, false);
}
static int mlxsw_sp_fid_8021d_index_alloc(struct mlxsw_sp_fid *fid,
const void *arg, u16 *p_fid_index)
{
struct mlxsw_sp_fid_family *fid_family = fid->fid_family;
u16 nr_fids, fid_index;
nr_fids = fid_family->end_index - fid_family->start_index + 1;
fid_index = find_first_zero_bit(fid_family->fids_bitmap, nr_fids);
if (fid_index == nr_fids)
return -ENOBUFS;
*p_fid_index = fid_family->start_index + fid_index;
return 0;
}
static bool
mlxsw_sp_fid_8021d_compare(const struct mlxsw_sp_fid *fid, const void *arg)
{
int br_ifindex = *(int *) arg;
return mlxsw_sp_fid_8021d_fid(fid)->br_ifindex == br_ifindex;
}
static u16 mlxsw_sp_fid_8021d_flood_index(const struct mlxsw_sp_fid *fid)
{
return fid->fid_index - fid->fid_family->start_index;
}
static int mlxsw_sp_port_vp_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
int err;
list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list,
list) {
struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
u16 vid = mlxsw_sp_port_vlan->vid;
if (!fid)
continue;
err = __mlxsw_sp_fid_port_vid_map(mlxsw_sp, fid->fid_index,
mlxsw_sp_port->local_port,
vid, true);
if (err)
goto err_fid_port_vid_map;
}
err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true);
if (err)
goto err_port_vp_mode_set;
return 0;
err_port_vp_mode_set:
err_fid_port_vid_map:
list_for_each_entry_continue_reverse(mlxsw_sp_port_vlan,
&mlxsw_sp_port->vlans_list, list) {
struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
u16 vid = mlxsw_sp_port_vlan->vid;
if (!fid)
continue;
__mlxsw_sp_fid_port_vid_map(mlxsw_sp, fid->fid_index,
mlxsw_sp_port->local_port, vid,
false);
}
return err;
}
static void mlxsw_sp_port_vlan_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);
list_for_each_entry_reverse(mlxsw_sp_port_vlan,
&mlxsw_sp_port->vlans_list, list) {
struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
u16 vid = mlxsw_sp_port_vlan->vid;
if (!fid)
continue;
__mlxsw_sp_fid_port_vid_map(mlxsw_sp, fid->fid_index,
mlxsw_sp_port->local_port, vid,
false);
}
}
static int mlxsw_sp_fid_8021d_port_vid_map(struct mlxsw_sp_fid *fid,
struct mlxsw_sp_port *mlxsw_sp_port,
u16 vid)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
u8 local_port = mlxsw_sp_port->local_port;
int err;
err = __mlxsw_sp_fid_port_vid_map(mlxsw_sp, fid->fid_index,
mlxsw_sp_port->local_port, vid, true);
if (err)
return err;
if (mlxsw_sp->fid_core->port_fid_mappings[local_port]++ == 0) {
err = mlxsw_sp_port_vp_mode_trans(mlxsw_sp_port);
if (err)
goto err_port_vp_mode_trans;
}
return 0;
err_port_vp_mode_trans:
mlxsw_sp->fid_core->port_fid_mappings[local_port]--;
__mlxsw_sp_fid_port_vid_map(mlxsw_sp, fid->fid_index,
mlxsw_sp_port->local_port, vid, false);
return err;
}
static void
mlxsw_sp_fid_8021d_port_vid_unmap(struct mlxsw_sp_fid *fid,
struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
u8 local_port = mlxsw_sp_port->local_port;
if (mlxsw_sp->fid_core->port_fid_mappings[local_port] == 1)
mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
mlxsw_sp->fid_core->port_fid_mappings[local_port]--;
__mlxsw_sp_fid_port_vid_map(mlxsw_sp, fid->fid_index,
mlxsw_sp_port->local_port, vid, false);
}
static const struct mlxsw_sp_fid_ops mlxsw_sp_fid_8021d_ops = {
.setup = mlxsw_sp_fid_8021d_setup,
.configure = mlxsw_sp_fid_8021d_configure,
.deconfigure = mlxsw_sp_fid_8021d_deconfigure,
.index_alloc = mlxsw_sp_fid_8021d_index_alloc,
.compare = mlxsw_sp_fid_8021d_compare,
.flood_index = mlxsw_sp_fid_8021d_flood_index,
.port_vid_map = mlxsw_sp_fid_8021d_port_vid_map,
.port_vid_unmap = mlxsw_sp_fid_8021d_port_vid_unmap,
};
static const struct mlxsw_sp_flood_table mlxsw_sp_fid_8021d_flood_tables[] = {
{
.packet_type = MLXSW_SP_FLOOD_TYPE_UC,
.bridge_type = MLXSW_REG_SFGC_BRIDGE_TYPE_VFID,
.table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID,
.table_index = 0,
},
{
.packet_type = MLXSW_SP_FLOOD_TYPE_MC,
.bridge_type = MLXSW_REG_SFGC_BRIDGE_TYPE_VFID,
.table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID,
.table_index = 1,
},
{
.packet_type = MLXSW_SP_FLOOD_TYPE_BC,
.bridge_type = MLXSW_REG_SFGC_BRIDGE_TYPE_VFID,
.table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID,
.table_index = 2,
},
};
/* Range and flood configuration must match mlxsw_config_profile */
static const struct mlxsw_sp_fid_family mlxsw_sp_fid_8021d_family = {
.type = MLXSW_SP_FID_TYPE_8021D,
.fid_size = sizeof(struct mlxsw_sp_fid_8021d),
.start_index = VLAN_N_VID,
.end_index = VLAN_N_VID + MLXSW_SP_FID_8021D_MAX - 1,
.flood_tables = mlxsw_sp_fid_8021d_flood_tables,
.nr_flood_tables = ARRAY_SIZE(mlxsw_sp_fid_8021d_flood_tables),
.rif_type = MLXSW_SP_RIF_TYPE_FID,
.ops = &mlxsw_sp_fid_8021d_ops,
};
static int mlxsw_sp_fid_rfid_configure(struct mlxsw_sp_fid *fid)
{
/* rFIDs are allocated by the device during init */
return 0;
}
static void mlxsw_sp_fid_rfid_deconfigure(struct mlxsw_sp_fid *fid)
{
}
static int mlxsw_sp_fid_rfid_index_alloc(struct mlxsw_sp_fid *fid,
const void *arg, u16 *p_fid_index)
{
u16 rif_index = *(u16 *) arg;
*p_fid_index = fid->fid_family->start_index + rif_index;
return 0;
}
static bool mlxsw_sp_fid_rfid_compare(const struct mlxsw_sp_fid *fid,
const void *arg)
{
u16 rif_index = *(u16 *) arg;
return fid->fid_index == rif_index + fid->fid_family->start_index;
}
static int mlxsw_sp_fid_rfid_port_vid_map(struct mlxsw_sp_fid *fid,
struct mlxsw_sp_port *mlxsw_sp_port,
u16 vid)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
u8 local_port = mlxsw_sp_port->local_port;
int err;
/* We only need to transition the port to virtual mode since
* {Port, VID} => FID is done by the firmware upon RIF creation.
*/
if (mlxsw_sp->fid_core->port_fid_mappings[local_port]++ == 0) {
err = mlxsw_sp_port_vp_mode_trans(mlxsw_sp_port);
if (err)
goto err_port_vp_mode_trans;
}
return 0;
err_port_vp_mode_trans:
mlxsw_sp->fid_core->port_fid_mappings[local_port]--;
return err;
}
static void
mlxsw_sp_fid_rfid_port_vid_unmap(struct mlxsw_sp_fid *fid,
struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
u8 local_port = mlxsw_sp_port->local_port;
if (mlxsw_sp->fid_core->port_fid_mappings[local_port] == 1)
mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
mlxsw_sp->fid_core->port_fid_mappings[local_port]--;
}
static const struct mlxsw_sp_fid_ops mlxsw_sp_fid_rfid_ops = {
.configure = mlxsw_sp_fid_rfid_configure,
.deconfigure = mlxsw_sp_fid_rfid_deconfigure,
.index_alloc = mlxsw_sp_fid_rfid_index_alloc,
.compare = mlxsw_sp_fid_rfid_compare,
.port_vid_map = mlxsw_sp_fid_rfid_port_vid_map,
.port_vid_unmap = mlxsw_sp_fid_rfid_port_vid_unmap,
};
#define MLXSW_SP_RFID_BASE (15 * 1024)
#define MLXSW_SP_RFID_MAX 1024
static const struct mlxsw_sp_fid_family mlxsw_sp_fid_rfid_family = {
.type = MLXSW_SP_FID_TYPE_RFID,
.fid_size = sizeof(struct mlxsw_sp_fid),
.start_index = MLXSW_SP_RFID_BASE,
.end_index = MLXSW_SP_RFID_BASE + MLXSW_SP_RFID_MAX - 1,
.rif_type = MLXSW_SP_RIF_TYPE_SUBPORT,
.ops = &mlxsw_sp_fid_rfid_ops,
};
static int mlxsw_sp_fid_dummy_configure(struct mlxsw_sp_fid *fid)
{
struct mlxsw_sp *mlxsw_sp = fid->fid_family->mlxsw_sp;
return mlxsw_sp_fid_op(mlxsw_sp, fid->fid_index, 0, true);
}
static void mlxsw_sp_fid_dummy_deconfigure(struct mlxsw_sp_fid *fid)
{
mlxsw_sp_fid_op(fid->fid_family->mlxsw_sp, fid->fid_index, 0, false);
}
static int mlxsw_sp_fid_dummy_index_alloc(struct mlxsw_sp_fid *fid,
const void *arg, u16 *p_fid_index)
{
*p_fid_index = fid->fid_family->start_index;
return 0;
}
static bool mlxsw_sp_fid_dummy_compare(const struct mlxsw_sp_fid *fid,
const void *arg)
{
return true;
}
static const struct mlxsw_sp_fid_ops mlxsw_sp_fid_dummy_ops = {
.configure = mlxsw_sp_fid_dummy_configure,
.deconfigure = mlxsw_sp_fid_dummy_deconfigure,
.index_alloc = mlxsw_sp_fid_dummy_index_alloc,
.compare = mlxsw_sp_fid_dummy_compare,
};
static const struct mlxsw_sp_fid_family mlxsw_sp_fid_dummy_family = {
.type = MLXSW_SP_FID_TYPE_DUMMY,
.fid_size = sizeof(struct mlxsw_sp_fid),
.start_index = MLXSW_SP_RFID_BASE - 1,
.end_index = MLXSW_SP_RFID_BASE - 1,
.ops = &mlxsw_sp_fid_dummy_ops,
};
static const struct mlxsw_sp_fid_family *mlxsw_sp_fid_family_arr[] = {
[MLXSW_SP_FID_TYPE_8021Q] = &mlxsw_sp_fid_8021q_family,
[MLXSW_SP_FID_TYPE_8021D] = &mlxsw_sp_fid_8021d_family,
[MLXSW_SP_FID_TYPE_RFID] = &mlxsw_sp_fid_rfid_family,
[MLXSW_SP_FID_TYPE_DUMMY] = &mlxsw_sp_fid_dummy_family,
};
static struct mlxsw_sp_fid *mlxsw_sp_fid_get(struct mlxsw_sp *mlxsw_sp,
enum mlxsw_sp_fid_type type,
const void *arg)
{
struct mlxsw_sp_fid_family *fid_family;
struct mlxsw_sp_fid *fid;
u16 fid_index;
int err;
fid_family = mlxsw_sp->fid_core->fid_family_arr[type];
list_for_each_entry(fid, &fid_family->fids_list, list) {
if (!fid->fid_family->ops->compare(fid, arg))
continue;
fid->ref_count++;
return fid;
}
fid = kzalloc(fid_family->fid_size, GFP_KERNEL);
if (!fid)
return ERR_PTR(-ENOMEM);
fid->fid_family = fid_family;
err = fid->fid_family->ops->index_alloc(fid, arg, &fid_index);
if (err)
goto err_index_alloc;
fid->fid_index = fid_index;
__set_bit(fid_index - fid_family->start_index, fid_family->fids_bitmap);
if (fid->fid_family->ops->setup)
fid->fid_family->ops->setup(fid, arg);
err = fid->fid_family->ops->configure(fid);
if (err)
goto err_configure;
list_add(&fid->list, &fid_family->fids_list);
fid->ref_count++;
return fid;
err_configure:
__clear_bit(fid_index - fid_family->start_index,
fid_family->fids_bitmap);
err_index_alloc:
kfree(fid);
return ERR_PTR(err);
}
void mlxsw_sp_fid_put(struct mlxsw_sp_fid *fid)
{
struct mlxsw_sp_fid_family *fid_family = fid->fid_family;
if (--fid->ref_count == 1 && fid->rif) {
/* Destroy the associated RIF and let it drop the last
* reference on the FID.
*/
return mlxsw_sp_rif_destroy(fid->rif);
} else if (fid->ref_count == 0) {
list_del(&fid->list);
fid->fid_family->ops->deconfigure(fid);
__clear_bit(fid->fid_index - fid_family->start_index,
fid_family->fids_bitmap);
kfree(fid);
}
}
struct mlxsw_sp_fid *mlxsw_sp_fid_8021q_get(struct mlxsw_sp *mlxsw_sp, u16 vid)
{
return mlxsw_sp_fid_get(mlxsw_sp, MLXSW_SP_FID_TYPE_8021Q, &vid);
}
struct mlxsw_sp_fid *mlxsw_sp_fid_8021d_get(struct mlxsw_sp *mlxsw_sp,
int br_ifindex)
{
return mlxsw_sp_fid_get(mlxsw_sp, MLXSW_SP_FID_TYPE_8021D, &br_ifindex);
}
struct mlxsw_sp_fid *mlxsw_sp_fid_rfid_get(struct mlxsw_sp *mlxsw_sp,
u16 rif_index)
{
return mlxsw_sp_fid_get(mlxsw_sp, MLXSW_SP_FID_TYPE_RFID, &rif_index);
}
struct mlxsw_sp_fid *mlxsw_sp_fid_dummy_get(struct mlxsw_sp *mlxsw_sp)
{
return mlxsw_sp_fid_get(mlxsw_sp, MLXSW_SP_FID_TYPE_DUMMY, NULL);
}
static int
mlxsw_sp_fid_flood_table_init(struct mlxsw_sp_fid_family *fid_family,
const struct mlxsw_sp_flood_table *flood_table)
{
enum mlxsw_sp_flood_type packet_type = flood_table->packet_type;
const int *sfgc_packet_types;
int i;
sfgc_packet_types = mlxsw_sp_packet_type_sfgc_types[packet_type];
for (i = 0; i < MLXSW_REG_SFGC_TYPE_MAX; i++) {
struct mlxsw_sp *mlxsw_sp = fid_family->mlxsw_sp;
char sfgc_pl[MLXSW_REG_SFGC_LEN];
int err;
if (!sfgc_packet_types[i])
continue;
mlxsw_reg_sfgc_pack(sfgc_pl, i, flood_table->bridge_type,
flood_table->table_type,
flood_table->table_index);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfgc), sfgc_pl);
if (err)
return err;
}
return 0;
}
static int
mlxsw_sp_fid_flood_tables_init(struct mlxsw_sp_fid_family *fid_family)
{
int i;
for (i = 0; i < fid_family->nr_flood_tables; i++) {
const struct mlxsw_sp_flood_table *flood_table;
int err;
flood_table = &fid_family->flood_tables[i];
err = mlxsw_sp_fid_flood_table_init(fid_family, flood_table);
if (err)
return err;
}
return 0;
}
static int mlxsw_sp_fid_family_register(struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_sp_fid_family *tmpl)
{
u16 nr_fids = tmpl->end_index - tmpl->start_index + 1;
struct mlxsw_sp_fid_family *fid_family;
int err;
fid_family = kmemdup(tmpl, sizeof(*fid_family), GFP_KERNEL);
if (!fid_family)
return -ENOMEM;
fid_family->mlxsw_sp = mlxsw_sp;
INIT_LIST_HEAD(&fid_family->fids_list);
fid_family->fids_bitmap = kcalloc(BITS_TO_LONGS(nr_fids),
sizeof(unsigned long), GFP_KERNEL);
if (!fid_family->fids_bitmap) {
err = -ENOMEM;
goto err_alloc_fids_bitmap;
}
if (fid_family->flood_tables) {
err = mlxsw_sp_fid_flood_tables_init(fid_family);
if (err)
goto err_fid_flood_tables_init;
}
mlxsw_sp->fid_core->fid_family_arr[tmpl->type] = fid_family;
return 0;
err_fid_flood_tables_init:
kfree(fid_family->fids_bitmap);
err_alloc_fids_bitmap:
kfree(fid_family);
return err;
}
static void
mlxsw_sp_fid_family_unregister(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fid_family *fid_family)
{
mlxsw_sp->fid_core->fid_family_arr[fid_family->type] = NULL;
kfree(fid_family->fids_bitmap);
WARN_ON_ONCE(!list_empty(&fid_family->fids_list));
kfree(fid_family);
}
int mlxsw_sp_port_fids_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
/* Track number of FIDs configured on the port with mapping type
* PORT_VID_TO_FID, so that we know when to transition the port
* back to non-virtual (VLAN) mode.
*/
mlxsw_sp->fid_core->port_fid_mappings[mlxsw_sp_port->local_port] = 0;
return mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);
}
void mlxsw_sp_port_fids_fini(struct mlxsw_sp_port *mlxsw_sp_port)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
mlxsw_sp->fid_core->port_fid_mappings[mlxsw_sp_port->local_port] = 0;
}
int mlxsw_sp_fids_init(struct mlxsw_sp *mlxsw_sp)
{
unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core);
struct mlxsw_sp_fid_core *fid_core;
int err, i;
fid_core = kzalloc(sizeof(*mlxsw_sp->fid_core), GFP_KERNEL);
if (!fid_core)
return -ENOMEM;
mlxsw_sp->fid_core = fid_core;
fid_core->port_fid_mappings = kcalloc(max_ports, sizeof(unsigned int),
GFP_KERNEL);
if (!fid_core->port_fid_mappings) {
err = -ENOMEM;
goto err_alloc_port_fid_mappings;
}
for (i = 0; i < MLXSW_SP_FID_TYPE_MAX; i++) {
err = mlxsw_sp_fid_family_register(mlxsw_sp,
mlxsw_sp_fid_family_arr[i]);
if (err)
goto err_fid_ops_register;
}
return 0;
err_fid_ops_register:
for (i--; i >= 0; i--) {
struct mlxsw_sp_fid_family *fid_family;
fid_family = fid_core->fid_family_arr[i];
mlxsw_sp_fid_family_unregister(mlxsw_sp, fid_family);
}
kfree(fid_core->port_fid_mappings);
err_alloc_port_fid_mappings:
kfree(fid_core);
return err;
}
void mlxsw_sp_fids_fini(struct mlxsw_sp *mlxsw_sp)
{
struct mlxsw_sp_fid_core *fid_core = mlxsw_sp->fid_core;
int i;
for (i = 0; i < MLXSW_SP_FID_TYPE_MAX; i++)
mlxsw_sp_fid_family_unregister(mlxsw_sp,
fid_core->fid_family_arr[i]);
kfree(fid_core->port_fid_mappings);
kfree(fid_core);
}