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Merge branch 'dsa-tag-modules' 

Andrew Lunn says:

====================
Make DSA tag drivers kernel modules

Historically, DSA tag drivers have been compiled into the kernel as
part of the DSA core. With the growing number of tag drivers, it makes
sense to allow this driver code to be compiled as a module, and loaded
on demand.

v2
--
Move name to end of structure, keeping the hot entries at the beginning.
More tag protocol to end of structure to keep hot members at the beginning.
Fix indent of #endif
Rewrite to move list pointer into a new structure
void functions, since there cannot be errors
Fix fall-through comment
Reorder patch for unused symbols to before tag drivers can be modules
tab/space cleanup
Help text wording
NET_DSA_TAG_BRCM_COMMON and NET_DSA_TAG_KZS_COMMON hidden

v3
--
boilerplate: Move kdoc next to macro
boilerplate: Fix THIS_MODULE indentation
Kconfig: More tabification
Kconfig: Punctuation

v4
--
Cover note {H}istorically
Kconfig: trailer
====================

Tested-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2019-04-28 19:41:01 -04:00
parent 5f0d736e7f 0b9f9dfbfa
commit c1a92c0a6c
16 changed files with 387 additions and 227 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

110
include/net/dsa.h
View File

@ -30,20 +30,32 @@ struct phy_device;
struct fixed_phy_status;
struct phylink_link_state;
#define DSA_TAG_PROTO_NONE_VALUE 0
#define DSA_TAG_PROTO_BRCM_VALUE 1
#define DSA_TAG_PROTO_BRCM_PREPEND_VALUE 2
#define DSA_TAG_PROTO_DSA_VALUE 3
#define DSA_TAG_PROTO_EDSA_VALUE 4
#define DSA_TAG_PROTO_GSWIP_VALUE 5
#define DSA_TAG_PROTO_KSZ9477_VALUE 6
#define DSA_TAG_PROTO_KSZ9893_VALUE 7
#define DSA_TAG_PROTO_LAN9303_VALUE 8
#define DSA_TAG_PROTO_MTK_VALUE 9
#define DSA_TAG_PROTO_QCA_VALUE 10
#define DSA_TAG_PROTO_TRAILER_VALUE 11
enum dsa_tag_protocol {
DSA_TAG_PROTO_NONE = 0,
DSA_TAG_PROTO_BRCM,
DSA_TAG_PROTO_BRCM_PREPEND,
DSA_TAG_PROTO_DSA,
DSA_TAG_PROTO_EDSA,
DSA_TAG_PROTO_GSWIP,
DSA_TAG_PROTO_KSZ9477,
DSA_TAG_PROTO_KSZ9893,
DSA_TAG_PROTO_LAN9303,
DSA_TAG_PROTO_MTK,
DSA_TAG_PROTO_QCA,
DSA_TAG_PROTO_TRAILER,
DSA_TAG_LAST, /* MUST BE LAST */
DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE,
DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE,
DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE,
DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE,
DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE,
DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE,
DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE,
DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE,
DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE,
DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE,
DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE,
DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE,
};
struct packet_type;
@ -56,8 +68,14 @@ struct dsa_device_ops {
int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto,
int *offset);
unsigned int overhead;
const char *name;
enum dsa_tag_protocol proto;
};
#define DSA_TAG_DRIVER_ALIAS "dsa_tag-"
#define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \
MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE))
struct dsa_switch_tree {
struct list_head list;
@ -575,4 +593,70 @@ int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data);
int dsa_port_get_phy_sset_count(struct dsa_port *dp);
void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up);
struct dsa_tag_driver {
const struct dsa_device_ops *ops;
struct list_head list;
struct module *owner;
};
void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[],
unsigned int count,
struct module *owner);
void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[],
unsigned int count);
#define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \
static int __init dsa_tag_driver_module_init(void) \
{ \
dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \
THIS_MODULE); \
return 0; \
} \
module_init(dsa_tag_driver_module_init); \
\
static void __exit dsa_tag_driver_module_exit(void) \
{ \
dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \
} \
module_exit(dsa_tag_driver_module_exit)
/**
* module_dsa_tag_drivers() - Helper macro for registering DSA tag
* drivers
* @__ops_array: Array of tag driver strucutres
*
* Helper macro for DSA tag drivers which do not do anything special
* in module init/exit. Each module may only use this macro once, and
* calling it replaces module_init() and module_exit().
*/
#define module_dsa_tag_drivers(__ops_array) \
dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array))
#define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops
/* Create a static structure we can build a linked list of dsa_tag
* drivers
*/
#define DSA_TAG_DRIVER(__ops) \
static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \
.ops = &__ops, \
}
/**
* module_dsa_tag_driver() - Helper macro for registering a single DSA tag
* driver
* @__ops: Single tag driver structures
*
* Helper macro for DSA tag drivers which do not do anything special
* in module init/exit. Each module may only use this macro once, and
* calling it replaces module_init() and module_exit().
*/
#define module_dsa_tag_driver(__ops) \
DSA_TAG_DRIVER(__ops); \
\
static struct dsa_tag_driver *dsa_tag_driver_array[] = { \
&DSA_TAG_DRIVER_NAME(__ops) \
}; \
module_dsa_tag_drivers(dsa_tag_driver_array)
#endif

91
net/dsa/Kconfig
View File

@ -4,7 +4,7 @@ config HAVE_NET_DSA
# Drivers must select NET_DSA and the appropriate tagging format
config NET_DSA
menuconfig NET_DSA
tristate "Distributed Switch Architecture"
depends on HAVE_NET_DSA
depends on BRIDGE || BRIDGE=n
@ -26,39 +26,84 @@ config NET_DSA_LEGACY
This feature is scheduled for removal in 4.17.
# tagging formats
config NET_DSA_TAG_BRCM_COMMON
tristate
default n
config NET_DSA_TAG_BRCM
bool
tristate "Tag driver for Broadcom switches using in-frame headers"
select NET_DSA_TAG_BRCM_COMMON
help
Say Y if you want to enable support for tagging frames for the
Broadcom switches which place the tag after the MAC source address.
config NET_DSA_TAG_BRCM_PREPEND
bool
config NET_DSA_TAG_DSA
bool
config NET_DSA_TAG_EDSA
bool
tristate "Tag driver for Broadcom switches using prepended headers"
select NET_DSA_TAG_BRCM_COMMON
help
Say Y if you want to enable support for tagging frames for the
Broadcom switches which places the tag before the Ethernet header
(prepended).
config NET_DSA_TAG_GSWIP
bool
tristate "Tag driver for Lantiq / Intel GSWIP switches"
help
Say Y or M if you want to enable support for tagging frames for the
Lantiq / Intel GSWIP switches.
config NET_DSA_TAG_KSZ
bool
config NET_DSA_TAG_DSA
tristate "Tag driver for Marvell switches using DSA headers"
help
Say Y or M if you want to enable support for tagging frames for the
Marvell switches which use DSA headers.
config NET_DSA_TAG_KSZ9477
bool
select NET_DSA_TAG_KSZ
config NET_DSA_TAG_LAN9303
bool
config NET_DSA_TAG_EDSA
tristate "Tag driver for Marvell switches using EtherType DSA headers"
help
Say Y or M if you want to enable support for tagging frames for the
Marvell switches which use EtherType DSA headers.
config NET_DSA_TAG_MTK
bool
tristate "Tag driver for Mediatek switches"
help
Say Y or M if you want to enable support for tagging frames for
Mediatek switches.
config NET_DSA_TAG_TRAILER
bool
config NET_DSA_TAG_KSZ_COMMON
tristate
default n
config NET_DSA_TAG_KSZ
tristate "Tag driver for Microchip 9893 family of switches"
select NET_DSA_TAG_KSZ_COMMON
help
Say Y if you want to enable support for tagging frames for the
Microchip 9893 family of switches.
config NET_DSA_TAG_KSZ9477
tristate "Tag driver for Microchip 9477 family of switches"
select NET_DSA_TAG_KSZ_COMMON
help
Say Y if you want to enable support for tagging frames for the
Microchip 9477 family of switches.
config NET_DSA_TAG_QCA
bool
tristate "Tag driver for Qualcomm Atheros QCA8K switches"
help
Say Y or M if you want to enable support for tagging frames for
the Qualcomm Atheros QCA8K switches.
config NET_DSA_TAG_LAN9303
tristate "Tag driver for SMSC/Microchip LAN9303 family of switches"
help
Say Y or M if you want to enable support for tagging frames for the
SMSC/Microchip LAN9303 family of switches.
config NET_DSA_TAG_TRAILER
tristate "Tag driver for switches using a trailer tag"
help
Say Y or M if you want to enable support for tagging frames at
with a trailed. e.g. Marvell 88E6060.
endif

19
net/dsa/Makefile
View File

@ -5,13 +5,12 @@ dsa_core-y += dsa.o dsa2.o master.o port.o slave.o switch.o
dsa_core-$(CONFIG_NET_DSA_LEGACY) += legacy.o
# tagging formats
dsa_core-$(CONFIG_NET_DSA_TAG_BRCM) += tag_brcm.o
dsa_core-$(CONFIG_NET_DSA_TAG_BRCM_PREPEND) += tag_brcm.o
dsa_core-$(CONFIG_NET_DSA_TAG_DSA) += tag_dsa.o
dsa_core-$(CONFIG_NET_DSA_TAG_EDSA) += tag_edsa.o
dsa_core-$(CONFIG_NET_DSA_TAG_GSWIP) += tag_gswip.o
dsa_core-$(CONFIG_NET_DSA_TAG_KSZ) += tag_ksz.o
dsa_core-$(CONFIG_NET_DSA_TAG_LAN9303) += tag_lan9303.o
dsa_core-$(CONFIG_NET_DSA_TAG_MTK) += tag_mtk.o
dsa_core-$(CONFIG_NET_DSA_TAG_QCA) += tag_qca.o
dsa_core-$(CONFIG_NET_DSA_TAG_TRAILER) += tag_trailer.o
obj-$(CONFIG_NET_DSA_TAG_BRCM_COMMON) += tag_brcm.o
obj-$(CONFIG_NET_DSA_TAG_DSA) += tag_dsa.o
obj-$(CONFIG_NET_DSA_TAG_EDSA) += tag_edsa.o
obj-$(CONFIG_NET_DSA_TAG_GSWIP) += tag_gswip.o
obj-$(CONFIG_NET_DSA_TAG_KSZ_COMMON) += tag_ksz.o
obj-$(CONFIG_NET_DSA_TAG_LAN9303) += tag_lan9303.o
obj-$(CONFIG_NET_DSA_TAG_MTK) += tag_mtk.o
obj-$(CONFIG_NET_DSA_TAG_QCA) += tag_qca.o
obj-$(CONFIG_NET_DSA_TAG_TRAILER) += tag_trailer.o

171
net/dsa/dsa.c
View File

@ -27,6 +27,9 @@
#include "dsa_priv.h"
static LIST_HEAD(dsa_tag_drivers_list);
static DEFINE_MUTEX(dsa_tag_drivers_lock);
static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb,
struct net_device *dev)
{
@ -35,106 +38,103 @@ static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb,
}
static const struct dsa_device_ops none_ops = {
.name = "none",
.proto = DSA_TAG_PROTO_NONE,
.xmit = dsa_slave_notag_xmit,
.rcv = NULL,
};
const struct dsa_device_ops *dsa_device_ops[DSA_TAG_LAST] = {
#ifdef CONFIG_NET_DSA_TAG_BRCM
[DSA_TAG_PROTO_BRCM] = &brcm_netdev_ops,
#endif
#ifdef CONFIG_NET_DSA_TAG_BRCM_PREPEND
[DSA_TAG_PROTO_BRCM_PREPEND] = &brcm_prepend_netdev_ops,
#endif
#ifdef CONFIG_NET_DSA_TAG_DSA
[DSA_TAG_PROTO_DSA] = &dsa_netdev_ops,
#endif
#ifdef CONFIG_NET_DSA_TAG_EDSA
[DSA_TAG_PROTO_EDSA] = &edsa_netdev_ops,
#endif
#ifdef CONFIG_NET_DSA_TAG_GSWIP
[DSA_TAG_PROTO_GSWIP] = &gswip_netdev_ops,
#endif
#ifdef CONFIG_NET_DSA_TAG_KSZ9477
[DSA_TAG_PROTO_KSZ9477] = &ksz9477_netdev_ops,
[DSA_TAG_PROTO_KSZ9893] = &ksz9893_netdev_ops,
#endif
#ifdef CONFIG_NET_DSA_TAG_LAN9303
[DSA_TAG_PROTO_LAN9303] = &lan9303_netdev_ops,
#endif
#ifdef CONFIG_NET_DSA_TAG_MTK
[DSA_TAG_PROTO_MTK] = &mtk_netdev_ops,
#endif
#ifdef CONFIG_NET_DSA_TAG_QCA
[DSA_TAG_PROTO_QCA] = &qca_netdev_ops,
#endif
#ifdef CONFIG_NET_DSA_TAG_TRAILER
[DSA_TAG_PROTO_TRAILER] = &trailer_netdev_ops,
#endif
[DSA_TAG_PROTO_NONE] = &none_ops,
};
DSA_TAG_DRIVER(none_ops);
static void dsa_tag_driver_register(struct dsa_tag_driver *dsa_tag_driver,
struct module *owner)
{
dsa_tag_driver->owner = owner;
mutex_lock(&dsa_tag_drivers_lock);
list_add_tail(&dsa_tag_driver->list, &dsa_tag_drivers_list);
mutex_unlock(&dsa_tag_drivers_lock);
}
void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[],
unsigned int count, struct module *owner)
{
unsigned int i;
for (i = 0; i < count; i++)
dsa_tag_driver_register(dsa_tag_driver_array[i], owner);
}
static void dsa_tag_driver_unregister(struct dsa_tag_driver *dsa_tag_driver)
{
mutex_lock(&dsa_tag_drivers_lock);
list_del(&dsa_tag_driver->list);
mutex_unlock(&dsa_tag_drivers_lock);
}
EXPORT_SYMBOL_GPL(dsa_tag_drivers_register);
void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[],
unsigned int count)
{
unsigned int i;
for (i = 0; i < count; i++)
dsa_tag_driver_unregister(dsa_tag_driver_array[i]);
}
EXPORT_SYMBOL_GPL(dsa_tag_drivers_unregister);
const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops)
{
const char *protocol_name[DSA_TAG_LAST] = {
#ifdef CONFIG_NET_DSA_TAG_BRCM
[DSA_TAG_PROTO_BRCM] = "brcm",
#endif
#ifdef CONFIG_NET_DSA_TAG_BRCM_PREPEND
[DSA_TAG_PROTO_BRCM_PREPEND] = "brcm-prepend",
#endif
#ifdef CONFIG_NET_DSA_TAG_DSA
[DSA_TAG_PROTO_DSA] = "dsa",
#endif
#ifdef CONFIG_NET_DSA_TAG_EDSA
[DSA_TAG_PROTO_EDSA] = "edsa",
#endif
#ifdef CONFIG_NET_DSA_TAG_GSWIP
[DSA_TAG_PROTO_GSWIP] = "gswip",
#endif
#ifdef CONFIG_NET_DSA_TAG_KSZ9477
[DSA_TAG_PROTO_KSZ9477] = "ksz9477",
[DSA_TAG_PROTO_KSZ9893] = "ksz9893",
#endif
#ifdef CONFIG_NET_DSA_TAG_LAN9303
[DSA_TAG_PROTO_LAN9303] = "lan9303",
#endif
#ifdef CONFIG_NET_DSA_TAG_MTK
[DSA_TAG_PROTO_MTK] = "mtk",
#endif
#ifdef CONFIG_NET_DSA_TAG_QCA
[DSA_TAG_PROTO_QCA] = "qca",
#endif
#ifdef CONFIG_NET_DSA_TAG_TRAILER
[DSA_TAG_PROTO_TRAILER] = "trailer",
#endif
[DSA_TAG_PROTO_NONE] = "none",
};
unsigned int i;
BUILD_BUG_ON(ARRAY_SIZE(protocol_name) != DSA_TAG_LAST);
for (i = 0; i < ARRAY_SIZE(dsa_device_ops); i++)
if (ops == dsa_device_ops[i])
return protocol_name[i];
return protocol_name[DSA_TAG_PROTO_NONE];
return ops->name;
};
const struct dsa_device_ops *dsa_resolve_tag_protocol(int tag_protocol)
const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol)
{
struct dsa_tag_driver *dsa_tag_driver;
const struct dsa_device_ops *ops;
char module_name[128];
bool found = false;
if (tag_protocol >= DSA_TAG_LAST)
return ERR_PTR(-EINVAL);
ops = dsa_device_ops[tag_protocol];
snprintf(module_name, 127, "%s%d", DSA_TAG_DRIVER_ALIAS,
tag_protocol);
if (!ops)
return ERR_PTR(-ENOPROTOOPT);
request_module(module_name);
mutex_lock(&dsa_tag_drivers_lock);
list_for_each_entry(dsa_tag_driver, &dsa_tag_drivers_list, list) {
ops = dsa_tag_driver->ops;
if (ops->proto == tag_protocol) {
found = true;
break;
}
}
if (found) {
if (!try_module_get(dsa_tag_driver->owner))
ops = ERR_PTR(-ENOPROTOOPT);
} else {
ops = ERR_PTR(-ENOPROTOOPT);
}
mutex_unlock(&dsa_tag_drivers_lock);
return ops;
}
void dsa_tag_driver_put(const struct dsa_device_ops *ops)
{
struct dsa_tag_driver *dsa_tag_driver;
mutex_lock(&dsa_tag_drivers_lock);
list_for_each_entry(dsa_tag_driver, &dsa_tag_drivers_list, list) {
if (dsa_tag_driver->ops == ops) {
module_put(dsa_tag_driver->owner);
break;
}
}
mutex_unlock(&dsa_tag_drivers_lock);
}
static int dev_is_class(struct device *dev, void *class)
{
if (dev->class != NULL && !strcmp(dev->class->name, class))
@ -352,12 +352,17 @@ static int __init dsa_init_module(void)
dev_add_pack(&dsa_pack_type);
dsa_tag_driver_register(&DSA_TAG_DRIVER_NAME(none_ops),
THIS_MODULE);
return 0;
}
module_init(dsa_init_module);
static void __exit dsa_cleanup_module(void)
{
dsa_tag_driver_unregister(&DSA_TAG_DRIVER_NAME(none_ops));
dsa_slave_unregister_notifier();
dev_remove_pack(&dsa_pack_type);
dsa_legacy_unregister();

4
net/dsa/dsa2.c
View File

@ -335,6 +335,8 @@ static void dsa_port_teardown(struct dsa_port *dp)
case DSA_PORT_TYPE_UNUSED:
break;
case DSA_PORT_TYPE_CPU:
dsa_tag_driver_put(dp->tag_ops);
/* fall-through */
case DSA_PORT_TYPE_DSA:
dsa_port_link_unregister_of(dp);
break;
@ -577,7 +579,7 @@ static int dsa_port_parse_cpu(struct dsa_port *dp, struct net_device *master)
enum dsa_tag_protocol tag_protocol;
tag_protocol = ds->ops->get_tag_protocol(ds, dp->index);
tag_ops = dsa_resolve_tag_protocol(tag_protocol);
tag_ops = dsa_tag_driver_get(tag_protocol);
if (IS_ERR(tag_ops)) {
dev_warn(ds->dev, "No tagger for this switch\n");
return PTR_ERR(tag_ops);

34
net/dsa/dsa_priv.h
View File

@ -84,7 +84,9 @@ struct dsa_slave_priv {
};
/* dsa.c */
const struct dsa_device_ops *dsa_resolve_tag_protocol(int tag_protocol);
const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol);
void dsa_tag_driver_put(const struct dsa_device_ops *ops);
bool dsa_schedule_work(struct work_struct *work);
const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops);
@ -200,34 +202,4 @@ dsa_slave_to_master(const struct net_device *dev)
/* switch.c */
int dsa_switch_register_notifier(struct dsa_switch *ds);
void dsa_switch_unregister_notifier(struct dsa_switch *ds);
/* tag_brcm.c */
extern const struct dsa_device_ops brcm_netdev_ops;
extern const struct dsa_device_ops brcm_prepend_netdev_ops;
/* tag_dsa.c */
extern const struct dsa_device_ops dsa_netdev_ops;
/* tag_edsa.c */
extern const struct dsa_device_ops edsa_netdev_ops;
/* tag_gswip.c */
extern const struct dsa_device_ops gswip_netdev_ops;
/* tag_ksz.c */
extern const struct dsa_device_ops ksz9477_netdev_ops;
extern const struct dsa_device_ops ksz9893_netdev_ops;
/* tag_lan9303.c */
extern const struct dsa_device_ops lan9303_netdev_ops;
/* tag_mtk.c */
extern const struct dsa_device_ops mtk_netdev_ops;
/* tag_qca.c */
extern const struct dsa_device_ops qca_netdev_ops;
/* tag_trailer.c */
extern const struct dsa_device_ops trailer_netdev_ops;
#endif

4
net/dsa/legacy.c
View File

@ -152,7 +152,7 @@ static int dsa_switch_setup_one(struct dsa_switch *ds,
enum dsa_tag_protocol tag_protocol;
tag_protocol = ops->get_tag_protocol(ds, dst->cpu_dp->index);
tag_ops = dsa_resolve_tag_protocol(tag_protocol);
tag_ops = dsa_tag_driver_get(tag_protocol);
if (IS_ERR(tag_ops))
return PTR_ERR(tag_ops);
@ -163,6 +163,8 @@ static int dsa_switch_setup_one(struct dsa_switch *ds,
dst->cpu_dp->dst = dst;
}
dsa_tag_driver_put(dst->cpu_dp->tag_ops);
memcpy(ds->rtable, cd->rtable, sizeof(ds->rtable));
/*

41
net/dsa/tag_brcm.c
View File

@ -1,12 +1,8 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Broadcom tag support
*
* Copyright (C) 2014 Broadcom Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/etherdevice.h>
@ -59,6 +55,9 @@
#define BRCM_EG_TC_MASK 0x7
#define BRCM_EG_PID_MASK 0x1f
#if IS_ENABLED(CONFIG_NET_DSA_TAG_BRCM) || \
IS_ENABLED(CONFIG_NET_DSA_TAG_BRCM_PREPEND)
static struct sk_buff *brcm_tag_xmit_ll(struct sk_buff *skb,
struct net_device *dev,
unsigned int offset)
@ -143,8 +142,9 @@ static struct sk_buff *brcm_tag_rcv_ll(struct sk_buff *skb,
return skb;
}
#endif
#ifdef CONFIG_NET_DSA_TAG_BRCM
#if IS_ENABLED(CONFIG_NET_DSA_TAG_BRCM)
static struct sk_buff *brcm_tag_xmit(struct sk_buff *skb,
struct net_device *dev)
{
@ -171,14 +171,19 @@ static struct sk_buff *brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev,
return nskb;
}
const struct dsa_device_ops brcm_netdev_ops = {
static const struct dsa_device_ops brcm_netdev_ops = {
.name = "brcm",
.proto = DSA_TAG_PROTO_BRCM,
.xmit = brcm_tag_xmit,
.rcv = brcm_tag_rcv,
.overhead = BRCM_TAG_LEN,
};
DSA_TAG_DRIVER(brcm_netdev_ops);
MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_BRCM);
#endif
#ifdef CONFIG_NET_DSA_TAG_BRCM_PREPEND
#if IS_ENABLED(CONFIG_NET_DSA_TAG_BRCM_PREPEND)
static struct sk_buff *brcm_tag_xmit_prepend(struct sk_buff *skb,
struct net_device *dev)
{
@ -194,9 +199,27 @@ static struct sk_buff *brcm_tag_rcv_prepend(struct sk_buff *skb,
return brcm_tag_rcv_ll(skb, dev, pt, ETH_HLEN);
}
const struct dsa_device_ops brcm_prepend_netdev_ops = {
static const struct dsa_device_ops brcm_prepend_netdev_ops = {
.name = "brcm-prepend",
.proto = DSA_TAG_PROTO_BRCM_PREPEND,
.xmit = brcm_tag_xmit_prepend,
.rcv = brcm_tag_rcv_prepend,
.overhead = BRCM_TAG_LEN,
};
#endif
DSA_TAG_DRIVER(brcm_prepend_netdev_ops);
MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_BRCM_PREPEND);
static struct dsa_tag_driver *dsa_tag_driver_array[] = {
#if IS_ENABLED(CONFIG_NET_DSA_TAG_BRCM)
&DSA_TAG_DRIVER_NAME(brcm_netdev_ops),
#endif
#if IS_ENABLED(CONFIG_NET_DSA_TAG_BRCM_PREPEND)
&DSA_TAG_DRIVER_NAME(brcm_prepend_netdev_ops),
#endif
};
module_dsa_tag_drivers(dsa_tag_driver_array);
MODULE_LICENSE("GPL");

15
net/dsa/tag_dsa.c
View File

@ -1,11 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* net/dsa/tag_dsa.c - (Non-ethertype) DSA tagging
* Copyright (c) 2008-2009 Marvell Semiconductor
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/etherdevice.h>
@ -154,9 +150,16 @@ static int dsa_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto,
return 0;
}
const struct dsa_device_ops dsa_netdev_ops = {
static const struct dsa_device_ops dsa_netdev_ops = {
.name = "dsa",
.proto = DSA_TAG_PROTO_DSA,
.xmit = dsa_xmit,
.rcv = dsa_rcv,
.flow_dissect = dsa_tag_flow_dissect,
.overhead = DSA_HLEN,
};
MODULE_LICENSE("GPL");
MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_DSA);
module_dsa_tag_driver(dsa_netdev_ops);

15
net/dsa/tag_edsa.c
View File

@ -1,11 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* net/dsa/tag_edsa.c - Ethertype DSA tagging
* Copyright (c) 2008-2009 Marvell Semiconductor
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/etherdevice.h>
@ -173,9 +169,16 @@ static int edsa_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto,
return 0;
}
const struct dsa_device_ops edsa_netdev_ops = {
static const struct dsa_device_ops edsa_netdev_ops = {
.name = "edsa",
.proto = DSA_TAG_PROTO_EDSA,
.xmit = edsa_xmit,
.rcv = edsa_rcv,
.flow_dissect = edsa_tag_flow_dissect,
.overhead = EDSA_HLEN,
};
MODULE_LICENSE("GPL");
MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_EDSA);
module_dsa_tag_driver(edsa_netdev_ops);

9
net/dsa/tag_gswip.c
View File

@ -103,8 +103,15 @@ static struct sk_buff *gswip_tag_rcv(struct sk_buff *skb,
return skb;
}
const struct dsa_device_ops gswip_netdev_ops = {
static const struct dsa_device_ops gswip_netdev_ops = {
.name = "gwsip",
.proto = DSA_TAG_PROTO_GSWIP,
.xmit = gswip_tag_xmit,
.rcv = gswip_tag_rcv,
.overhead = GSWIP_RX_HEADER_LEN,
};
MODULE_LICENSE("GPL");
MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_GSWIP);
module_dsa_tag_driver(gswip_netdev_ops);

29
net/dsa/tag_ksz.c
View File

@ -1,11 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* net/dsa/tag_ksz.c - Microchip KSZ Switch tag format handling
* Copyright (c) 2017 Microchip Technology
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/etherdevice.h>
@ -137,12 +133,17 @@ static struct sk_buff *ksz9477_rcv(struct sk_buff *skb, struct net_device *dev,
return ksz_common_rcv(skb, dev, port, len);
}
const struct dsa_device_ops ksz9477_netdev_ops = {
static const struct dsa_device_ops ksz9477_netdev_ops = {
.name = "ksz9477",
.proto = DSA_TAG_PROTO_KSZ9477,
.xmit = ksz9477_xmit,
.rcv = ksz9477_rcv,
.overhead = KSZ9477_INGRESS_TAG_LEN,
};
DSA_TAG_DRIVER(ksz9477_netdev_ops);
MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_KSZ9477);
#define KSZ9893_TAIL_TAG_OVERRIDE BIT(5)
#define KSZ9893_TAIL_TAG_LOOKUP BIT(6)
@ -170,8 +171,22 @@ static struct sk_buff *ksz9893_xmit(struct sk_buff *skb,
return nskb;
}
const struct dsa_device_ops ksz9893_netdev_ops = {
static const struct dsa_device_ops ksz9893_netdev_ops = {
.name = "ksz9893",
.proto = DSA_TAG_PROTO_KSZ9893,
.xmit = ksz9893_xmit,
.rcv = ksz9477_rcv,
.overhead = KSZ_INGRESS_TAG_LEN,
};
DSA_TAG_DRIVER(ksz9893_netdev_ops);
MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_KSZ9893);
static struct dsa_tag_driver *dsa_tag_driver_array[] = {
&DSA_TAG_DRIVER_NAME(ksz9477_netdev_ops),
&DSA_TAG_DRIVER_NAME(ksz9893_netdev_ops),
};
module_dsa_tag_drivers(dsa_tag_driver_array);
MODULE_LICENSE("GPL");

20
net/dsa/tag_lan9303.c
View File

@ -1,15 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2017 Pengutronix, Juergen Borleis <jbe@pengutronix.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/dsa/lan9303.h>
#include <linux/etherdevice.h>
@ -137,8 +128,15 @@ static struct sk_buff *lan9303_rcv(struct sk_buff *skb, struct net_device *dev,
return skb;
}
const struct dsa_device_ops lan9303_netdev_ops = {
static const struct dsa_device_ops lan9303_netdev_ops = {
.name = "lan9303",
.proto = DSA_TAG_PROTO_LAN9303,
.xmit = lan9303_xmit,
.rcv = lan9303_rcv,
.overhead = LAN9303_TAG_LEN,
};
MODULE_LICENSE("GPL");
MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_LAN9303);
module_dsa_tag_driver(lan9303_netdev_ops);

18
net/dsa/tag_mtk.c
View File

@ -1,15 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Mediatek DSA Tag support
* Copyright (C) 2017 Landen Chao <landen.chao@mediatek.com>
* Sean Wang <sean.wang@mediatek.com>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/etherdevice.h>
@ -105,9 +98,16 @@ static int mtk_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto,
return 0;
}
const struct dsa_device_ops mtk_netdev_ops = {
static const struct dsa_device_ops mtk_netdev_ops = {
.name = "mtk",
.proto = DSA_TAG_PROTO_MTK,
.xmit = mtk_tag_xmit,
.rcv = mtk_tag_rcv,
.flow_dissect = mtk_tag_flow_dissect,
.overhead = MTK_HDR_LEN,
};
MODULE_LICENSE("GPL");
MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_MTK);
module_dsa_tag_driver(mtk_netdev_ops);

19
net/dsa/tag_qca.c
View File

@ -1,14 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/etherdevice.h>
@ -107,9 +99,16 @@ static int qca_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto,
return 0;
}
const struct dsa_device_ops qca_netdev_ops = {
static const struct dsa_device_ops qca_netdev_ops = {
.name = "qca",
.proto = DSA_TAG_PROTO_QCA,
.xmit = qca_tag_xmit,
.rcv = qca_tag_rcv,
.flow_dissect = qca_tag_flow_dissect,
.overhead = QCA_HDR_LEN,
};
MODULE_LICENSE("GPL");
MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_QCA);
module_dsa_tag_driver(qca_netdev_ops);

15
net/dsa/tag_trailer.c
View File

@ -1,11 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* net/dsa/tag_trailer.c - Trailer tag format handling
* Copyright (c) 2008-2009 Marvell Semiconductor
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/etherdevice.h>
@ -81,8 +77,15 @@ static struct sk_buff *trailer_rcv(struct sk_buff *skb, struct net_device *dev,
return skb;
}
const struct dsa_device_ops trailer_netdev_ops = {
static const struct dsa_device_ops trailer_netdev_ops = {
.name = "trailer",
.proto = DSA_TAG_PROTO_TRAILER,
.xmit = trailer_xmit,
.rcv = trailer_rcv,
.overhead = 4,
};
MODULE_LICENSE("GPL");
MODULE_ALIAS_DSA_TAG_DRIVER(DSA_TAG_PROTO_TRAILER);
module_dsa_tag_driver(trailer_netdev_ops);