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![Marek Behún](/assets/img/avatar_default.png)
Add a new DSA switch operation, phylink_get_interfaces, which should fill in which PHY_INTERFACE_MODE_* are supported by given port. Use this before phylink_create() to fill phylinks supported_interfaces member, allowing phylink to determine which PHY_INTERFACE_MODEs are supported. Signed-off-by: Marek Behún <kabel@kernel.org> [tweaked patch and description to add more complete support -- rmk] Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
1192 lines
36 KiB
C
1192 lines
36 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* include/net/dsa.h - Driver for Distributed Switch Architecture switch chips
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* Copyright (c) 2008-2009 Marvell Semiconductor
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*/
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#ifndef __LINUX_NET_DSA_H
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#define __LINUX_NET_DSA_H
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#include <linux/if.h>
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#include <linux/if_ether.h>
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#include <linux/list.h>
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#include <linux/notifier.h>
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#include <linux/timer.h>
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#include <linux/workqueue.h>
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#include <linux/of.h>
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#include <linux/ethtool.h>
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#include <linux/net_tstamp.h>
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#include <linux/phy.h>
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#include <linux/platform_data/dsa.h>
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#include <linux/phylink.h>
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#include <net/devlink.h>
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#include <net/switchdev.h>
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struct tc_action;
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struct phy_device;
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struct fixed_phy_status;
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struct phylink_link_state;
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#define DSA_TAG_PROTO_NONE_VALUE 0
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#define DSA_TAG_PROTO_BRCM_VALUE 1
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#define DSA_TAG_PROTO_BRCM_PREPEND_VALUE 2
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#define DSA_TAG_PROTO_DSA_VALUE 3
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#define DSA_TAG_PROTO_EDSA_VALUE 4
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#define DSA_TAG_PROTO_GSWIP_VALUE 5
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#define DSA_TAG_PROTO_KSZ9477_VALUE 6
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#define DSA_TAG_PROTO_KSZ9893_VALUE 7
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#define DSA_TAG_PROTO_LAN9303_VALUE 8
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#define DSA_TAG_PROTO_MTK_VALUE 9
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#define DSA_TAG_PROTO_QCA_VALUE 10
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#define DSA_TAG_PROTO_TRAILER_VALUE 11
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#define DSA_TAG_PROTO_8021Q_VALUE 12
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#define DSA_TAG_PROTO_SJA1105_VALUE 13
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#define DSA_TAG_PROTO_KSZ8795_VALUE 14
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#define DSA_TAG_PROTO_OCELOT_VALUE 15
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#define DSA_TAG_PROTO_AR9331_VALUE 16
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#define DSA_TAG_PROTO_RTL4_A_VALUE 17
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#define DSA_TAG_PROTO_HELLCREEK_VALUE 18
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#define DSA_TAG_PROTO_XRS700X_VALUE 19
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#define DSA_TAG_PROTO_OCELOT_8021Q_VALUE 20
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#define DSA_TAG_PROTO_SEVILLE_VALUE 21
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#define DSA_TAG_PROTO_BRCM_LEGACY_VALUE 22
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#define DSA_TAG_PROTO_SJA1110_VALUE 23
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#define DSA_TAG_PROTO_RTL8_4_VALUE 24
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enum dsa_tag_protocol {
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DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE,
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DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE,
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DSA_TAG_PROTO_BRCM_LEGACY = DSA_TAG_PROTO_BRCM_LEGACY_VALUE,
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DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE,
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DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE,
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DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE,
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DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE,
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DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE,
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DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE,
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DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE,
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DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE,
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DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE,
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DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE,
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DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE,
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DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE,
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DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE,
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DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE,
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DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE,
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DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE,
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DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE,
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DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE,
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DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE,
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DSA_TAG_PROTO_SEVILLE = DSA_TAG_PROTO_SEVILLE_VALUE,
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DSA_TAG_PROTO_SJA1110 = DSA_TAG_PROTO_SJA1110_VALUE,
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DSA_TAG_PROTO_RTL8_4 = DSA_TAG_PROTO_RTL8_4_VALUE,
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};
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struct dsa_switch;
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struct dsa_device_ops {
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struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev);
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struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev);
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void (*flow_dissect)(const struct sk_buff *skb, __be16 *proto,
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int *offset);
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unsigned int needed_headroom;
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unsigned int needed_tailroom;
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const char *name;
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enum dsa_tag_protocol proto;
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/* Some tagging protocols either mangle or shift the destination MAC
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* address, in which case the DSA master would drop packets on ingress
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* if what it understands out of the destination MAC address is not in
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* its RX filter.
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*/
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bool promisc_on_master;
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};
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/* This structure defines the control interfaces that are overlayed by the
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* DSA layer on top of the DSA CPU/management net_device instance. This is
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* used by the core net_device layer while calling various net_device_ops
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* function pointers.
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*/
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struct dsa_netdevice_ops {
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int (*ndo_eth_ioctl)(struct net_device *dev, struct ifreq *ifr,
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int cmd);
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};
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#define DSA_TAG_DRIVER_ALIAS "dsa_tag-"
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#define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \
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MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE))
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struct dsa_switch_tree {
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struct list_head list;
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/* Notifier chain for switch-wide events */
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struct raw_notifier_head nh;
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/* Tree identifier */
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unsigned int index;
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/* Number of switches attached to this tree */
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struct kref refcount;
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/* Has this tree been applied to the hardware? */
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bool setup;
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/* Tagging protocol operations */
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const struct dsa_device_ops *tag_ops;
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/* Default tagging protocol preferred by the switches in this
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* tree.
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*/
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enum dsa_tag_protocol default_proto;
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/*
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* Configuration data for the platform device that owns
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* this dsa switch tree instance.
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*/
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struct dsa_platform_data *pd;
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/* List of switch ports */
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struct list_head ports;
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/* List of DSA links composing the routing table */
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struct list_head rtable;
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/* Maps offloaded LAG netdevs to a zero-based linear ID for
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* drivers that need it.
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*/
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struct net_device **lags;
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unsigned int lags_len;
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/* Track the largest switch index within a tree */
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unsigned int last_switch;
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};
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#define dsa_lags_foreach_id(_id, _dst) \
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for ((_id) = 0; (_id) < (_dst)->lags_len; (_id)++) \
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if ((_dst)->lags[(_id)])
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#define dsa_lag_foreach_port(_dp, _dst, _lag) \
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list_for_each_entry((_dp), &(_dst)->ports, list) \
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if ((_dp)->lag_dev == (_lag))
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#define dsa_hsr_foreach_port(_dp, _ds, _hsr) \
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list_for_each_entry((_dp), &(_ds)->dst->ports, list) \
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if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr))
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static inline struct net_device *dsa_lag_dev(struct dsa_switch_tree *dst,
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unsigned int id)
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{
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return dst->lags[id];
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}
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static inline int dsa_lag_id(struct dsa_switch_tree *dst,
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struct net_device *lag)
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{
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unsigned int id;
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dsa_lags_foreach_id(id, dst) {
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if (dsa_lag_dev(dst, id) == lag)
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return id;
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}
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return -ENODEV;
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}
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/* TC matchall action types */
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enum dsa_port_mall_action_type {
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DSA_PORT_MALL_MIRROR,
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DSA_PORT_MALL_POLICER,
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};
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/* TC mirroring entry */
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struct dsa_mall_mirror_tc_entry {
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u8 to_local_port;
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bool ingress;
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};
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/* TC port policer entry */
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struct dsa_mall_policer_tc_entry {
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u32 burst;
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u64 rate_bytes_per_sec;
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};
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/* TC matchall entry */
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struct dsa_mall_tc_entry {
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struct list_head list;
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unsigned long cookie;
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enum dsa_port_mall_action_type type;
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union {
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struct dsa_mall_mirror_tc_entry mirror;
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struct dsa_mall_policer_tc_entry policer;
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};
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};
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struct dsa_port {
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/* A CPU port is physically connected to a master device.
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* A user port exposed to userspace has a slave device.
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*/
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union {
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struct net_device *master;
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struct net_device *slave;
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};
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/* Copy of the tagging protocol operations, for quicker access
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* in the data path. Valid only for the CPU ports.
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*/
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const struct dsa_device_ops *tag_ops;
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/* Copies for faster access in master receive hot path */
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struct dsa_switch_tree *dst;
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struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev);
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enum {
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DSA_PORT_TYPE_UNUSED = 0,
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DSA_PORT_TYPE_CPU,
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DSA_PORT_TYPE_DSA,
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DSA_PORT_TYPE_USER,
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} type;
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struct dsa_switch *ds;
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unsigned int index;
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const char *name;
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struct dsa_port *cpu_dp;
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u8 mac[ETH_ALEN];
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struct device_node *dn;
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unsigned int ageing_time;
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bool vlan_filtering;
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/* Managed by DSA on user ports and by drivers on CPU and DSA ports */
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bool learning;
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u8 stp_state;
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struct net_device *bridge_dev;
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int bridge_num;
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struct devlink_port devlink_port;
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bool devlink_port_setup;
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struct phylink *pl;
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struct phylink_config pl_config;
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struct net_device *lag_dev;
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bool lag_tx_enabled;
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struct net_device *hsr_dev;
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struct list_head list;
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/*
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* Give the switch driver somewhere to hang its per-port private data
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* structures (accessible from the tagger).
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*/
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void *priv;
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/*
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* Original copy of the master netdev ethtool_ops
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*/
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const struct ethtool_ops *orig_ethtool_ops;
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/*
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* Original copy of the master netdev net_device_ops
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*/
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const struct dsa_netdevice_ops *netdev_ops;
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/* List of MAC addresses that must be forwarded on this port.
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* These are only valid on CPU ports and DSA links.
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*/
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struct mutex addr_lists_lock;
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struct list_head fdbs;
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struct list_head mdbs;
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bool setup;
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};
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/* TODO: ideally DSA ports would have a single dp->link_dp member,
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* and no dst->rtable nor this struct dsa_link would be needed,
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* but this would require some more complex tree walking,
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* so keep it stupid at the moment and list them all.
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*/
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struct dsa_link {
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struct dsa_port *dp;
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struct dsa_port *link_dp;
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struct list_head list;
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};
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struct dsa_mac_addr {
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unsigned char addr[ETH_ALEN];
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u16 vid;
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refcount_t refcount;
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struct list_head list;
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};
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struct dsa_switch {
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bool setup;
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struct device *dev;
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/*
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* Parent switch tree, and switch index.
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*/
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struct dsa_switch_tree *dst;
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unsigned int index;
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/* Listener for switch fabric events */
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struct notifier_block nb;
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/*
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* Give the switch driver somewhere to hang its private data
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* structure.
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*/
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void *priv;
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/*
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* Configuration data for this switch.
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*/
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struct dsa_chip_data *cd;
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/*
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* The switch operations.
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*/
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const struct dsa_switch_ops *ops;
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/*
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* Slave mii_bus and devices for the individual ports.
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*/
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u32 phys_mii_mask;
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struct mii_bus *slave_mii_bus;
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/* Ageing Time limits in msecs */
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unsigned int ageing_time_min;
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unsigned int ageing_time_max;
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/* Storage for drivers using tag_8021q */
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struct dsa_8021q_context *tag_8021q_ctx;
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/* devlink used to represent this switch device */
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struct devlink *devlink;
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/* Number of switch port queues */
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unsigned int num_tx_queues;
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/* Disallow bridge core from requesting different VLAN awareness
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* settings on ports if not hardware-supported
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*/
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bool vlan_filtering_is_global;
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/* Keep VLAN filtering enabled on ports not offloading any upper. */
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bool needs_standalone_vlan_filtering;
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/* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges
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* that have vlan_filtering=0. All drivers should ideally set this (and
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* then the option would get removed), but it is unknown whether this
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* would break things or not.
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*/
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bool configure_vlan_while_not_filtering;
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/* If the switch driver always programs the CPU port as egress tagged
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* despite the VLAN configuration indicating otherwise, then setting
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* @untag_bridge_pvid will force the DSA receive path to pop the bridge's
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* default_pvid VLAN tagged frames to offer a consistent behavior
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* between a vlan_filtering=0 and vlan_filtering=1 bridge device.
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*/
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bool untag_bridge_pvid;
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/* Let DSA manage the FDB entries towards the CPU, based on the
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* software bridge database.
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*/
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bool assisted_learning_on_cpu_port;
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/* In case vlan_filtering_is_global is set, the VLAN awareness state
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* should be retrieved from here and not from the per-port settings.
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*/
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bool vlan_filtering;
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/* MAC PCS does not provide link state change interrupt, and requires
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* polling. Flag passed on to PHYLINK.
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*/
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bool pcs_poll;
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/* For switches that only have the MRU configurable. To ensure the
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* configured MTU is not exceeded, normalization of MRU on all bridged
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* interfaces is needed.
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*/
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bool mtu_enforcement_ingress;
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/* Drivers that benefit from having an ID associated with each
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* offloaded LAG should set this to the maximum number of
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* supported IDs. DSA will then maintain a mapping of _at
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* least_ these many IDs, accessible to drivers via
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* dsa_lag_id().
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*/
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unsigned int num_lag_ids;
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/* Drivers that support bridge forwarding offload should set this to
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* the maximum number of bridges spanning the same switch tree (or all
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* trees, in the case of cross-tree bridging support) that can be
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* offloaded.
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*/
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unsigned int num_fwd_offloading_bridges;
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size_t num_ports;
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};
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static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p)
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{
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struct dsa_switch_tree *dst = ds->dst;
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struct dsa_port *dp;
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list_for_each_entry(dp, &dst->ports, list)
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if (dp->ds == ds && dp->index == p)
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return dp;
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return NULL;
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}
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static inline bool dsa_port_is_dsa(struct dsa_port *port)
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{
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return port->type == DSA_PORT_TYPE_DSA;
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}
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static inline bool dsa_port_is_cpu(struct dsa_port *port)
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{
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return port->type == DSA_PORT_TYPE_CPU;
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}
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static inline bool dsa_port_is_user(struct dsa_port *dp)
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{
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return dp->type == DSA_PORT_TYPE_USER;
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}
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static inline bool dsa_port_is_unused(struct dsa_port *dp)
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{
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return dp->type == DSA_PORT_TYPE_UNUSED;
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}
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static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p)
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{
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return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED;
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}
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static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p)
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{
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return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU;
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}
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static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p)
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{
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return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA;
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}
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static inline bool dsa_is_user_port(struct dsa_switch *ds, int p)
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{
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return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER;
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}
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#define dsa_tree_for_each_user_port(_dp, _dst) \
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list_for_each_entry((_dp), &(_dst)->ports, list) \
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if (dsa_port_is_user((_dp)))
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#define dsa_switch_for_each_port(_dp, _ds) \
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list_for_each_entry((_dp), &(_ds)->dst->ports, list) \
|
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if ((_dp)->ds == (_ds))
|
|
|
|
#define dsa_switch_for_each_port_safe(_dp, _next, _ds) \
|
|
list_for_each_entry_safe((_dp), (_next), &(_ds)->dst->ports, list) \
|
|
if ((_dp)->ds == (_ds))
|
|
|
|
#define dsa_switch_for_each_port_continue_reverse(_dp, _ds) \
|
|
list_for_each_entry_continue_reverse((_dp), &(_ds)->dst->ports, list) \
|
|
if ((_dp)->ds == (_ds))
|
|
|
|
#define dsa_switch_for_each_available_port(_dp, _ds) \
|
|
dsa_switch_for_each_port((_dp), (_ds)) \
|
|
if (!dsa_port_is_unused((_dp)))
|
|
|
|
#define dsa_switch_for_each_user_port(_dp, _ds) \
|
|
dsa_switch_for_each_port((_dp), (_ds)) \
|
|
if (dsa_port_is_user((_dp)))
|
|
|
|
#define dsa_switch_for_each_cpu_port(_dp, _ds) \
|
|
dsa_switch_for_each_port((_dp), (_ds)) \
|
|
if (dsa_port_is_cpu((_dp)))
|
|
|
|
static inline u32 dsa_user_ports(struct dsa_switch *ds)
|
|
{
|
|
struct dsa_port *dp;
|
|
u32 mask = 0;
|
|
|
|
dsa_switch_for_each_user_port(dp, ds)
|
|
mask |= BIT(dp->index);
|
|
|
|
return mask;
|
|
}
|
|
|
|
/* Return the local port used to reach an arbitrary switch device */
|
|
static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device)
|
|
{
|
|
struct dsa_switch_tree *dst = ds->dst;
|
|
struct dsa_link *dl;
|
|
|
|
list_for_each_entry(dl, &dst->rtable, list)
|
|
if (dl->dp->ds == ds && dl->link_dp->ds->index == device)
|
|
return dl->dp->index;
|
|
|
|
return ds->num_ports;
|
|
}
|
|
|
|
/* Return the local port used to reach an arbitrary switch port */
|
|
static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device,
|
|
int port)
|
|
{
|
|
if (device == ds->index)
|
|
return port;
|
|
else
|
|
return dsa_routing_port(ds, device);
|
|
}
|
|
|
|
/* Return the local port used to reach the dedicated CPU port */
|
|
static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port)
|
|
{
|
|
const struct dsa_port *dp = dsa_to_port(ds, port);
|
|
const struct dsa_port *cpu_dp = dp->cpu_dp;
|
|
|
|
if (!cpu_dp)
|
|
return port;
|
|
|
|
return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index);
|
|
}
|
|
|
|
/* Return true if this is the local port used to reach the CPU port */
|
|
static inline bool dsa_is_upstream_port(struct dsa_switch *ds, int port)
|
|
{
|
|
if (dsa_is_unused_port(ds, port))
|
|
return false;
|
|
|
|
return port == dsa_upstream_port(ds, port);
|
|
}
|
|
|
|
/* Return true if @upstream_ds is an upstream switch of @downstream_ds, meaning
|
|
* that the routing port from @downstream_ds to @upstream_ds is also the port
|
|
* which @downstream_ds uses to reach its dedicated CPU.
|
|
*/
|
|
static inline bool dsa_switch_is_upstream_of(struct dsa_switch *upstream_ds,
|
|
struct dsa_switch *downstream_ds)
|
|
{
|
|
int routing_port;
|
|
|
|
if (upstream_ds == downstream_ds)
|
|
return true;
|
|
|
|
routing_port = dsa_routing_port(downstream_ds, upstream_ds->index);
|
|
|
|
return dsa_is_upstream_port(downstream_ds, routing_port);
|
|
}
|
|
|
|
static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp)
|
|
{
|
|
const struct dsa_switch *ds = dp->ds;
|
|
|
|
if (ds->vlan_filtering_is_global)
|
|
return ds->vlan_filtering;
|
|
else
|
|
return dp->vlan_filtering;
|
|
}
|
|
|
|
static inline
|
|
struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp)
|
|
{
|
|
if (!dp->bridge_dev)
|
|
return NULL;
|
|
|
|
if (dp->lag_dev)
|
|
return dp->lag_dev;
|
|
else if (dp->hsr_dev)
|
|
return dp->hsr_dev;
|
|
|
|
return dp->slave;
|
|
}
|
|
|
|
typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid,
|
|
bool is_static, void *data);
|
|
struct dsa_switch_ops {
|
|
/*
|
|
* Tagging protocol helpers called for the CPU ports and DSA links.
|
|
* @get_tag_protocol retrieves the initial tagging protocol and is
|
|
* mandatory. Switches which can operate using multiple tagging
|
|
* protocols should implement @change_tag_protocol and report in
|
|
* @get_tag_protocol the tagger in current use.
|
|
*/
|
|
enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds,
|
|
int port,
|
|
enum dsa_tag_protocol mprot);
|
|
int (*change_tag_protocol)(struct dsa_switch *ds, int port,
|
|
enum dsa_tag_protocol proto);
|
|
|
|
/* Optional switch-wide initialization and destruction methods */
|
|
int (*setup)(struct dsa_switch *ds);
|
|
void (*teardown)(struct dsa_switch *ds);
|
|
|
|
/* Per-port initialization and destruction methods. Mandatory if the
|
|
* driver registers devlink port regions, optional otherwise.
|
|
*/
|
|
int (*port_setup)(struct dsa_switch *ds, int port);
|
|
void (*port_teardown)(struct dsa_switch *ds, int port);
|
|
|
|
u32 (*get_phy_flags)(struct dsa_switch *ds, int port);
|
|
|
|
/*
|
|
* Access to the switch's PHY registers.
|
|
*/
|
|
int (*phy_read)(struct dsa_switch *ds, int port, int regnum);
|
|
int (*phy_write)(struct dsa_switch *ds, int port,
|
|
int regnum, u16 val);
|
|
|
|
/*
|
|
* Link state adjustment (called from libphy)
|
|
*/
|
|
void (*adjust_link)(struct dsa_switch *ds, int port,
|
|
struct phy_device *phydev);
|
|
void (*fixed_link_update)(struct dsa_switch *ds, int port,
|
|
struct fixed_phy_status *st);
|
|
|
|
/*
|
|
* PHYLINK integration
|
|
*/
|
|
void (*phylink_get_interfaces)(struct dsa_switch *ds, int port,
|
|
unsigned long *supported_interfaces);
|
|
void (*phylink_validate)(struct dsa_switch *ds, int port,
|
|
unsigned long *supported,
|
|
struct phylink_link_state *state);
|
|
int (*phylink_mac_link_state)(struct dsa_switch *ds, int port,
|
|
struct phylink_link_state *state);
|
|
void (*phylink_mac_config)(struct dsa_switch *ds, int port,
|
|
unsigned int mode,
|
|
const struct phylink_link_state *state);
|
|
void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port);
|
|
void (*phylink_mac_link_down)(struct dsa_switch *ds, int port,
|
|
unsigned int mode,
|
|
phy_interface_t interface);
|
|
void (*phylink_mac_link_up)(struct dsa_switch *ds, int port,
|
|
unsigned int mode,
|
|
phy_interface_t interface,
|
|
struct phy_device *phydev,
|
|
int speed, int duplex,
|
|
bool tx_pause, bool rx_pause);
|
|
void (*phylink_fixed_state)(struct dsa_switch *ds, int port,
|
|
struct phylink_link_state *state);
|
|
/*
|
|
* Port statistics counters.
|
|
*/
|
|
void (*get_strings)(struct dsa_switch *ds, int port,
|
|
u32 stringset, uint8_t *data);
|
|
void (*get_ethtool_stats)(struct dsa_switch *ds,
|
|
int port, uint64_t *data);
|
|
int (*get_sset_count)(struct dsa_switch *ds, int port, int sset);
|
|
void (*get_ethtool_phy_stats)(struct dsa_switch *ds,
|
|
int port, uint64_t *data);
|
|
void (*get_eth_phy_stats)(struct dsa_switch *ds, int port,
|
|
struct ethtool_eth_phy_stats *phy_stats);
|
|
void (*get_eth_mac_stats)(struct dsa_switch *ds, int port,
|
|
struct ethtool_eth_mac_stats *mac_stats);
|
|
void (*get_eth_ctrl_stats)(struct dsa_switch *ds, int port,
|
|
struct ethtool_eth_ctrl_stats *ctrl_stats);
|
|
void (*get_stats64)(struct dsa_switch *ds, int port,
|
|
struct rtnl_link_stats64 *s);
|
|
void (*self_test)(struct dsa_switch *ds, int port,
|
|
struct ethtool_test *etest, u64 *data);
|
|
|
|
/*
|
|
* ethtool Wake-on-LAN
|
|
*/
|
|
void (*get_wol)(struct dsa_switch *ds, int port,
|
|
struct ethtool_wolinfo *w);
|
|
int (*set_wol)(struct dsa_switch *ds, int port,
|
|
struct ethtool_wolinfo *w);
|
|
|
|
/*
|
|
* ethtool timestamp info
|
|
*/
|
|
int (*get_ts_info)(struct dsa_switch *ds, int port,
|
|
struct ethtool_ts_info *ts);
|
|
|
|
/*
|
|
* Suspend and resume
|
|
*/
|
|
int (*suspend)(struct dsa_switch *ds);
|
|
int (*resume)(struct dsa_switch *ds);
|
|
|
|
/*
|
|
* Port enable/disable
|
|
*/
|
|
int (*port_enable)(struct dsa_switch *ds, int port,
|
|
struct phy_device *phy);
|
|
void (*port_disable)(struct dsa_switch *ds, int port);
|
|
|
|
/*
|
|
* Port's MAC EEE settings
|
|
*/
|
|
int (*set_mac_eee)(struct dsa_switch *ds, int port,
|
|
struct ethtool_eee *e);
|
|
int (*get_mac_eee)(struct dsa_switch *ds, int port,
|
|
struct ethtool_eee *e);
|
|
|
|
/* EEPROM access */
|
|
int (*get_eeprom_len)(struct dsa_switch *ds);
|
|
int (*get_eeprom)(struct dsa_switch *ds,
|
|
struct ethtool_eeprom *eeprom, u8 *data);
|
|
int (*set_eeprom)(struct dsa_switch *ds,
|
|
struct ethtool_eeprom *eeprom, u8 *data);
|
|
|
|
/*
|
|
* Register access.
|
|
*/
|
|
int (*get_regs_len)(struct dsa_switch *ds, int port);
|
|
void (*get_regs)(struct dsa_switch *ds, int port,
|
|
struct ethtool_regs *regs, void *p);
|
|
|
|
/*
|
|
* Upper device tracking.
|
|
*/
|
|
int (*port_prechangeupper)(struct dsa_switch *ds, int port,
|
|
struct netdev_notifier_changeupper_info *info);
|
|
|
|
/*
|
|
* Bridge integration
|
|
*/
|
|
int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs);
|
|
int (*port_bridge_join)(struct dsa_switch *ds, int port,
|
|
struct net_device *bridge);
|
|
void (*port_bridge_leave)(struct dsa_switch *ds, int port,
|
|
struct net_device *bridge);
|
|
/* Called right after .port_bridge_join() */
|
|
int (*port_bridge_tx_fwd_offload)(struct dsa_switch *ds, int port,
|
|
struct net_device *bridge,
|
|
int bridge_num);
|
|
/* Called right before .port_bridge_leave() */
|
|
void (*port_bridge_tx_fwd_unoffload)(struct dsa_switch *ds, int port,
|
|
struct net_device *bridge,
|
|
int bridge_num);
|
|
void (*port_stp_state_set)(struct dsa_switch *ds, int port,
|
|
u8 state);
|
|
void (*port_fast_age)(struct dsa_switch *ds, int port);
|
|
int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port,
|
|
struct switchdev_brport_flags flags,
|
|
struct netlink_ext_ack *extack);
|
|
int (*port_bridge_flags)(struct dsa_switch *ds, int port,
|
|
struct switchdev_brport_flags flags,
|
|
struct netlink_ext_ack *extack);
|
|
|
|
/*
|
|
* VLAN support
|
|
*/
|
|
int (*port_vlan_filtering)(struct dsa_switch *ds, int port,
|
|
bool vlan_filtering,
|
|
struct netlink_ext_ack *extack);
|
|
int (*port_vlan_add)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_port_vlan *vlan,
|
|
struct netlink_ext_ack *extack);
|
|
int (*port_vlan_del)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_port_vlan *vlan);
|
|
/*
|
|
* Forwarding database
|
|
*/
|
|
int (*port_fdb_add)(struct dsa_switch *ds, int port,
|
|
const unsigned char *addr, u16 vid);
|
|
int (*port_fdb_del)(struct dsa_switch *ds, int port,
|
|
const unsigned char *addr, u16 vid);
|
|
int (*port_fdb_dump)(struct dsa_switch *ds, int port,
|
|
dsa_fdb_dump_cb_t *cb, void *data);
|
|
|
|
/*
|
|
* Multicast database
|
|
*/
|
|
int (*port_mdb_add)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_port_mdb *mdb);
|
|
int (*port_mdb_del)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_port_mdb *mdb);
|
|
/*
|
|
* RXNFC
|
|
*/
|
|
int (*get_rxnfc)(struct dsa_switch *ds, int port,
|
|
struct ethtool_rxnfc *nfc, u32 *rule_locs);
|
|
int (*set_rxnfc)(struct dsa_switch *ds, int port,
|
|
struct ethtool_rxnfc *nfc);
|
|
|
|
/*
|
|
* TC integration
|
|
*/
|
|
int (*cls_flower_add)(struct dsa_switch *ds, int port,
|
|
struct flow_cls_offload *cls, bool ingress);
|
|
int (*cls_flower_del)(struct dsa_switch *ds, int port,
|
|
struct flow_cls_offload *cls, bool ingress);
|
|
int (*cls_flower_stats)(struct dsa_switch *ds, int port,
|
|
struct flow_cls_offload *cls, bool ingress);
|
|
int (*port_mirror_add)(struct dsa_switch *ds, int port,
|
|
struct dsa_mall_mirror_tc_entry *mirror,
|
|
bool ingress);
|
|
void (*port_mirror_del)(struct dsa_switch *ds, int port,
|
|
struct dsa_mall_mirror_tc_entry *mirror);
|
|
int (*port_policer_add)(struct dsa_switch *ds, int port,
|
|
struct dsa_mall_policer_tc_entry *policer);
|
|
void (*port_policer_del)(struct dsa_switch *ds, int port);
|
|
int (*port_setup_tc)(struct dsa_switch *ds, int port,
|
|
enum tc_setup_type type, void *type_data);
|
|
|
|
/*
|
|
* Cross-chip operations
|
|
*/
|
|
int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index,
|
|
int sw_index, int port,
|
|
struct net_device *br);
|
|
void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index,
|
|
int sw_index, int port,
|
|
struct net_device *br);
|
|
int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index,
|
|
int port);
|
|
int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index,
|
|
int port, struct net_device *lag,
|
|
struct netdev_lag_upper_info *info);
|
|
int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index,
|
|
int port, struct net_device *lag);
|
|
|
|
/*
|
|
* PTP functionality
|
|
*/
|
|
int (*port_hwtstamp_get)(struct dsa_switch *ds, int port,
|
|
struct ifreq *ifr);
|
|
int (*port_hwtstamp_set)(struct dsa_switch *ds, int port,
|
|
struct ifreq *ifr);
|
|
void (*port_txtstamp)(struct dsa_switch *ds, int port,
|
|
struct sk_buff *skb);
|
|
bool (*port_rxtstamp)(struct dsa_switch *ds, int port,
|
|
struct sk_buff *skb, unsigned int type);
|
|
|
|
/* Devlink parameters, etc */
|
|
int (*devlink_param_get)(struct dsa_switch *ds, u32 id,
|
|
struct devlink_param_gset_ctx *ctx);
|
|
int (*devlink_param_set)(struct dsa_switch *ds, u32 id,
|
|
struct devlink_param_gset_ctx *ctx);
|
|
int (*devlink_info_get)(struct dsa_switch *ds,
|
|
struct devlink_info_req *req,
|
|
struct netlink_ext_ack *extack);
|
|
int (*devlink_sb_pool_get)(struct dsa_switch *ds,
|
|
unsigned int sb_index, u16 pool_index,
|
|
struct devlink_sb_pool_info *pool_info);
|
|
int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index,
|
|
u16 pool_index, u32 size,
|
|
enum devlink_sb_threshold_type threshold_type,
|
|
struct netlink_ext_ack *extack);
|
|
int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port,
|
|
unsigned int sb_index, u16 pool_index,
|
|
u32 *p_threshold);
|
|
int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port,
|
|
unsigned int sb_index, u16 pool_index,
|
|
u32 threshold,
|
|
struct netlink_ext_ack *extack);
|
|
int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port,
|
|
unsigned int sb_index, u16 tc_index,
|
|
enum devlink_sb_pool_type pool_type,
|
|
u16 *p_pool_index, u32 *p_threshold);
|
|
int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port,
|
|
unsigned int sb_index, u16 tc_index,
|
|
enum devlink_sb_pool_type pool_type,
|
|
u16 pool_index, u32 threshold,
|
|
struct netlink_ext_ack *extack);
|
|
int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds,
|
|
unsigned int sb_index);
|
|
int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds,
|
|
unsigned int sb_index);
|
|
int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port,
|
|
unsigned int sb_index, u16 pool_index,
|
|
u32 *p_cur, u32 *p_max);
|
|
int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port,
|
|
unsigned int sb_index, u16 tc_index,
|
|
enum devlink_sb_pool_type pool_type,
|
|
u32 *p_cur, u32 *p_max);
|
|
|
|
/*
|
|
* MTU change functionality. Switches can also adjust their MRU through
|
|
* this method. By MTU, one understands the SDU (L2 payload) length.
|
|
* If the switch needs to account for the DSA tag on the CPU port, this
|
|
* method needs to do so privately.
|
|
*/
|
|
int (*port_change_mtu)(struct dsa_switch *ds, int port,
|
|
int new_mtu);
|
|
int (*port_max_mtu)(struct dsa_switch *ds, int port);
|
|
|
|
/*
|
|
* LAG integration
|
|
*/
|
|
int (*port_lag_change)(struct dsa_switch *ds, int port);
|
|
int (*port_lag_join)(struct dsa_switch *ds, int port,
|
|
struct net_device *lag,
|
|
struct netdev_lag_upper_info *info);
|
|
int (*port_lag_leave)(struct dsa_switch *ds, int port,
|
|
struct net_device *lag);
|
|
|
|
/*
|
|
* HSR integration
|
|
*/
|
|
int (*port_hsr_join)(struct dsa_switch *ds, int port,
|
|
struct net_device *hsr);
|
|
int (*port_hsr_leave)(struct dsa_switch *ds, int port,
|
|
struct net_device *hsr);
|
|
|
|
/*
|
|
* MRP integration
|
|
*/
|
|
int (*port_mrp_add)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_mrp *mrp);
|
|
int (*port_mrp_del)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_mrp *mrp);
|
|
int (*port_mrp_add_ring_role)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_ring_role_mrp *mrp);
|
|
int (*port_mrp_del_ring_role)(struct dsa_switch *ds, int port,
|
|
const struct switchdev_obj_ring_role_mrp *mrp);
|
|
|
|
/*
|
|
* tag_8021q operations
|
|
*/
|
|
int (*tag_8021q_vlan_add)(struct dsa_switch *ds, int port, u16 vid,
|
|
u16 flags);
|
|
int (*tag_8021q_vlan_del)(struct dsa_switch *ds, int port, u16 vid);
|
|
};
|
|
|
|
#define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \
|
|
DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \
|
|
dsa_devlink_param_get, dsa_devlink_param_set, NULL)
|
|
|
|
int dsa_devlink_param_get(struct devlink *dl, u32 id,
|
|
struct devlink_param_gset_ctx *ctx);
|
|
int dsa_devlink_param_set(struct devlink *dl, u32 id,
|
|
struct devlink_param_gset_ctx *ctx);
|
|
int dsa_devlink_params_register(struct dsa_switch *ds,
|
|
const struct devlink_param *params,
|
|
size_t params_count);
|
|
void dsa_devlink_params_unregister(struct dsa_switch *ds,
|
|
const struct devlink_param *params,
|
|
size_t params_count);
|
|
int dsa_devlink_resource_register(struct dsa_switch *ds,
|
|
const char *resource_name,
|
|
u64 resource_size,
|
|
u64 resource_id,
|
|
u64 parent_resource_id,
|
|
const struct devlink_resource_size_params *size_params);
|
|
|
|
void dsa_devlink_resources_unregister(struct dsa_switch *ds);
|
|
|
|
void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds,
|
|
u64 resource_id,
|
|
devlink_resource_occ_get_t *occ_get,
|
|
void *occ_get_priv);
|
|
void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds,
|
|
u64 resource_id);
|
|
struct devlink_region *
|
|
dsa_devlink_region_create(struct dsa_switch *ds,
|
|
const struct devlink_region_ops *ops,
|
|
u32 region_max_snapshots, u64 region_size);
|
|
struct devlink_region *
|
|
dsa_devlink_port_region_create(struct dsa_switch *ds,
|
|
int port,
|
|
const struct devlink_port_region_ops *ops,
|
|
u32 region_max_snapshots, u64 region_size);
|
|
void dsa_devlink_region_destroy(struct devlink_region *region);
|
|
|
|
struct dsa_port *dsa_port_from_netdev(struct net_device *netdev);
|
|
|
|
struct dsa_devlink_priv {
|
|
struct dsa_switch *ds;
|
|
};
|
|
|
|
static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl)
|
|
{
|
|
struct dsa_devlink_priv *dl_priv = devlink_priv(dl);
|
|
|
|
return dl_priv->ds;
|
|
}
|
|
|
|
static inline
|
|
struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port)
|
|
{
|
|
struct devlink *dl = port->devlink;
|
|
struct dsa_devlink_priv *dl_priv = devlink_priv(dl);
|
|
|
|
return dl_priv->ds;
|
|
}
|
|
|
|
static inline int dsa_devlink_port_to_port(struct devlink_port *port)
|
|
{
|
|
return port->index;
|
|
}
|
|
|
|
struct dsa_switch_driver {
|
|
struct list_head list;
|
|
const struct dsa_switch_ops *ops;
|
|
};
|
|
|
|
struct net_device *dsa_dev_to_net_device(struct device *dev);
|
|
|
|
/* Keep inline for faster access in hot path */
|
|
static inline bool netdev_uses_dsa(const struct net_device *dev)
|
|
{
|
|
#if IS_ENABLED(CONFIG_NET_DSA)
|
|
return dev->dsa_ptr && dev->dsa_ptr->rcv;
|
|
#endif
|
|
return false;
|
|
}
|
|
|
|
/* All DSA tags that push the EtherType to the right (basically all except tail
|
|
* tags, which don't break dissection) can be treated the same from the
|
|
* perspective of the flow dissector.
|
|
*
|
|
* We need to return:
|
|
* - offset: the (B - A) difference between:
|
|
* A. the position of the real EtherType and
|
|
* B. the current skb->data (aka ETH_HLEN bytes into the frame, aka 2 bytes
|
|
* after the normal EtherType was supposed to be)
|
|
* The offset in bytes is exactly equal to the tagger overhead (and half of
|
|
* that, in __be16 shorts).
|
|
*
|
|
* - proto: the value of the real EtherType.
|
|
*/
|
|
static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb,
|
|
__be16 *proto, int *offset)
|
|
{
|
|
#if IS_ENABLED(CONFIG_NET_DSA)
|
|
const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops;
|
|
int tag_len = ops->needed_headroom;
|
|
|
|
*offset = tag_len;
|
|
*proto = ((__be16 *)skb->data)[(tag_len / 2) - 1];
|
|
#endif
|
|
}
|
|
|
|
#if IS_ENABLED(CONFIG_NET_DSA)
|
|
static inline int __dsa_netdevice_ops_check(struct net_device *dev)
|
|
{
|
|
int err = -EOPNOTSUPP;
|
|
|
|
if (!dev->dsa_ptr)
|
|
return err;
|
|
|
|
if (!dev->dsa_ptr->netdev_ops)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr,
|
|
int cmd)
|
|
{
|
|
const struct dsa_netdevice_ops *ops;
|
|
int err;
|
|
|
|
err = __dsa_netdevice_ops_check(dev);
|
|
if (err)
|
|
return err;
|
|
|
|
ops = dev->dsa_ptr->netdev_ops;
|
|
|
|
return ops->ndo_eth_ioctl(dev, ifr, cmd);
|
|
}
|
|
#else
|
|
static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr,
|
|
int cmd)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
#endif
|
|
|
|
void dsa_unregister_switch(struct dsa_switch *ds);
|
|
int dsa_register_switch(struct dsa_switch *ds);
|
|
void dsa_switch_shutdown(struct dsa_switch *ds);
|
|
struct dsa_switch *dsa_switch_find(int tree_index, int sw_index);
|
|
#ifdef CONFIG_PM_SLEEP
|
|
int dsa_switch_suspend(struct dsa_switch *ds);
|
|
int dsa_switch_resume(struct dsa_switch *ds);
|
|
#else
|
|
static inline int dsa_switch_suspend(struct dsa_switch *ds)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline int dsa_switch_resume(struct dsa_switch *ds)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_PM_SLEEP */
|
|
|
|
#if IS_ENABLED(CONFIG_NET_DSA)
|
|
bool dsa_slave_dev_check(const struct net_device *dev);
|
|
#else
|
|
static inline bool dsa_slave_dev_check(const struct net_device *dev)
|
|
{
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev);
|
|
int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data);
|
|
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
|
|
|