From cf4ce59b3b70238352c7f1729f0f7223214828ad Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 20 Sep 2024 01:46:19 +0000
Subject: [PATCH] rtl88x2CE_WiFi_linux add concurrent mode
---
kernel/include/net/ip_fib.h | 216 +++++++++++++++++++++++++++++++++++++++--------------
1 files changed, 159 insertions(+), 57 deletions(-)
diff --git a/kernel/include/net/ip_fib.h b/kernel/include/net/ip_fib.h
index 95eed32..088f257 100644
--- a/kernel/include/net/ip_fib.h
+++ b/kernel/include/net/ip_fib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -6,11 +7,6 @@
* Definitions for the Forwarding Information Base.
*
* Authors: A.N.Kuznetsov, <kuznet@ms2.inr.ac.ru>
- *
- * 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.
*/
#ifndef _NET_IP_FIB_H
@@ -32,14 +28,19 @@
u8 fc_protocol;
u8 fc_scope;
u8 fc_type;
- /* 3 bytes unused */
+ u8 fc_gw_family;
+ /* 2 bytes unused */
u32 fc_table;
__be32 fc_dst;
- __be32 fc_gw;
+ union {
+ __be32 fc_gw4;
+ struct in6_addr fc_gw6;
+ };
int fc_oif;
u32 fc_flags;
u32 fc_priority;
__be32 fc_prefsrc;
+ u32 fc_nh_id;
struct nlattr *fc_mx;
struct rtnexthop *fc_mp;
int fc_mx_len;
@@ -76,36 +77,61 @@
#define FNHE_HASH_SIZE (1 << FNHE_HASH_SHIFT)
#define FNHE_RECLAIM_DEPTH 5
+struct fib_nh_common {
+ struct net_device *nhc_dev;
+ int nhc_oif;
+ unsigned char nhc_scope;
+ u8 nhc_family;
+ u8 nhc_gw_family;
+ unsigned char nhc_flags;
+ struct lwtunnel_state *nhc_lwtstate;
+
+ union {
+ __be32 ipv4;
+ struct in6_addr ipv6;
+ } nhc_gw;
+
+ int nhc_weight;
+ atomic_t nhc_upper_bound;
+
+ /* v4 specific, but allows fib6_nh with v4 routes */
+ struct rtable __rcu * __percpu *nhc_pcpu_rth_output;
+ struct rtable __rcu *nhc_rth_input;
+ struct fnhe_hash_bucket __rcu *nhc_exceptions;
+};
+
struct fib_nh {
- struct net_device *nh_dev;
+ struct fib_nh_common nh_common;
struct hlist_node nh_hash;
struct fib_info *nh_parent;
- unsigned int nh_flags;
- unsigned char nh_scope;
-#ifdef CONFIG_IP_ROUTE_MULTIPATH
- int nh_weight;
- atomic_t nh_upper_bound;
-#endif
#ifdef CONFIG_IP_ROUTE_CLASSID
__u32 nh_tclassid;
#endif
- int nh_oif;
- __be32 nh_gw;
__be32 nh_saddr;
int nh_saddr_genid;
- struct rtable __rcu * __percpu *nh_pcpu_rth_output;
- struct rtable __rcu *nh_rth_input;
- struct fnhe_hash_bucket __rcu *nh_exceptions;
- struct lwtunnel_state *nh_lwtstate;
+#define fib_nh_family nh_common.nhc_family
+#define fib_nh_dev nh_common.nhc_dev
+#define fib_nh_oif nh_common.nhc_oif
+#define fib_nh_flags nh_common.nhc_flags
+#define fib_nh_lws nh_common.nhc_lwtstate
+#define fib_nh_scope nh_common.nhc_scope
+#define fib_nh_gw_family nh_common.nhc_gw_family
+#define fib_nh_gw4 nh_common.nhc_gw.ipv4
+#define fib_nh_gw6 nh_common.nhc_gw.ipv6
+#define fib_nh_weight nh_common.nhc_weight
+#define fib_nh_upper_bound nh_common.nhc_upper_bound
};
/*
* This structure contains data shared by many of routes.
*/
+struct nexthop;
+
struct fib_info {
struct hlist_node fib_hash;
struct hlist_node fib_lhash;
+ struct list_head nh_list;
struct net *fib_net;
int fib_treeref;
refcount_t fib_clntref;
@@ -123,9 +149,11 @@
#define fib_rtt fib_metrics->metrics[RTAX_RTT-1]
#define fib_advmss fib_metrics->metrics[RTAX_ADVMSS-1]
int fib_nhs;
+ bool fib_nh_is_v6;
+ bool nh_updated;
+ struct nexthop *nh;
struct rcu_head rcu;
- struct fib_nh fib_nh[0];
-#define fib_dev fib_nh[0].nh_dev
+ struct fib_nh fib_nh[];
};
@@ -135,15 +163,16 @@
struct fib_table;
struct fib_result {
- __be32 prefix;
- unsigned char prefixlen;
- unsigned char nh_sel;
- unsigned char type;
- unsigned char scope;
- u32 tclassid;
- struct fib_info *fi;
- struct fib_table *table;
- struct hlist_head *fa_head;
+ __be32 prefix;
+ unsigned char prefixlen;
+ unsigned char nh_sel;
+ unsigned char type;
+ unsigned char scope;
+ u32 tclassid;
+ struct fib_nh_common *nhc;
+ struct fib_info *fi;
+ struct fib_table *table;
+ struct hlist_head *fa_head;
};
struct fib_result_nl {
@@ -161,31 +190,31 @@
int err;
};
-#ifdef CONFIG_IP_ROUTE_MULTIPATH
-#define FIB_RES_NH(res) ((res).fi->fib_nh[(res).nh_sel])
-#else /* CONFIG_IP_ROUTE_MULTIPATH */
-#define FIB_RES_NH(res) ((res).fi->fib_nh[0])
-#endif /* CONFIG_IP_ROUTE_MULTIPATH */
-
#ifdef CONFIG_IP_MULTIPLE_TABLES
#define FIB_TABLE_HASHSZ 256
#else
#define FIB_TABLE_HASHSZ 2
#endif
-__be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh);
+__be32 fib_info_update_nhc_saddr(struct net *net, struct fib_nh_common *nhc,
+ unsigned char scope);
+__be32 fib_result_prefsrc(struct net *net, struct fib_result *res);
-#define FIB_RES_SADDR(net, res) \
- ((FIB_RES_NH(res).nh_saddr_genid == \
- atomic_read(&(net)->ipv4.dev_addr_genid)) ? \
- FIB_RES_NH(res).nh_saddr : \
- fib_info_update_nh_saddr((net), &FIB_RES_NH(res)))
-#define FIB_RES_GW(res) (FIB_RES_NH(res).nh_gw)
-#define FIB_RES_DEV(res) (FIB_RES_NH(res).nh_dev)
-#define FIB_RES_OIF(res) (FIB_RES_NH(res).nh_oif)
+#define FIB_RES_NHC(res) ((res).nhc)
+#define FIB_RES_DEV(res) (FIB_RES_NHC(res)->nhc_dev)
+#define FIB_RES_OIF(res) (FIB_RES_NHC(res)->nhc_oif)
-#define FIB_RES_PREFSRC(net, res) ((res).fi->fib_prefsrc ? : \
- FIB_RES_SADDR(net, res))
+struct fib_rt_info {
+ struct fib_info *fi;
+ u32 tb_id;
+ __be32 dst;
+ int dst_len;
+ u8 tos;
+ u8 type;
+ u8 offload:1,
+ trap:1,
+ unused:6;
+};
struct fib_entry_notifier_info {
struct fib_notifier_info info; /* must be first */
@@ -202,7 +231,7 @@
struct fib_nh *fib_nh;
};
-int call_fib4_notifier(struct notifier_block *nb, struct net *net,
+int call_fib4_notifier(struct notifier_block *nb,
enum fib_event_type event_type,
struct fib_notifier_info *info);
int call_fib4_notifiers(struct net *net, enum fib_event_type event_type,
@@ -211,7 +240,9 @@
int __net_init fib4_notifier_init(struct net *net);
void __net_exit fib4_notifier_exit(struct net *net);
-void fib_notify(struct net *net, struct notifier_block *nb);
+void fib_info_notify_update(struct net *net, struct nl_info *info);
+int fib_notify(struct net *net, struct notifier_block *nb,
+ struct netlink_ext_ack *extack);
struct fib_table {
struct hlist_node tb_hlist;
@@ -219,7 +250,19 @@
int tb_num_default;
struct rcu_head rcu;
unsigned long *tb_data;
- unsigned long __data[0];
+ unsigned long __data[];
+};
+
+struct fib_dump_filter {
+ u32 table_id;
+ /* filter_set is an optimization that an entry is set */
+ bool filter_set;
+ bool dump_routes;
+ bool dump_exceptions;
+ unsigned char protocol;
+ unsigned char rt_type;
+ unsigned int flags;
+ struct net_device *dev;
};
int fib_table_lookup(struct fib_table *tb, const struct flowi4 *flp,
@@ -229,7 +272,7 @@
int fib_table_delete(struct net *, struct fib_table *, struct fib_config *,
struct netlink_ext_ack *extack);
int fib_table_dump(struct fib_table *table, struct sk_buff *skb,
- struct netlink_callback *cb);
+ struct netlink_callback *cb, struct fib_dump_filter *filter);
int fib_table_flush(struct net *net, struct fib_table *table, bool flush_all);
struct fib_table *fib_trie_unmerge(struct fib_table *main_tb);
void fib_table_flush_external(struct fib_table *table);
@@ -279,12 +322,18 @@
return err;
}
+static inline bool fib4_has_custom_rules(const struct net *net)
+{
+ return false;
+}
+
static inline bool fib4_rule_default(const struct fib_rule *rule)
{
return true;
}
-static inline int fib4_rules_dump(struct net *net, struct notifier_block *nb)
+static inline int fib4_rules_dump(struct net *net, struct notifier_block *nb,
+ struct netlink_ext_ack *extack)
{
return 0;
}
@@ -345,8 +394,14 @@
return err;
}
+static inline bool fib4_has_custom_rules(const struct net *net)
+{
+ return net->ipv4.fib_has_custom_rules;
+}
+
bool fib4_rule_default(const struct fib_rule *rule);
-int fib4_rules_dump(struct net *net, struct notifier_block *nb);
+int fib4_rules_dump(struct net *net, struct notifier_block *nb,
+ struct netlink_ext_ack *extack);
unsigned int fib4_rules_seq_read(struct net *net);
static inline bool fib4_rules_early_flow_dissect(struct net *net,
@@ -372,14 +427,17 @@
/* Exported by fib_frontend.c */
extern const struct nla_policy rtm_ipv4_policy[];
void ip_fib_init(void);
+int fib_gw_from_via(struct fib_config *cfg, struct nlattr *nla,
+ struct netlink_ext_ack *extack);
__be32 fib_compute_spec_dst(struct sk_buff *skb);
+bool fib_info_nh_uses_dev(struct fib_info *fi, const struct net_device *dev);
int fib_validate_source(struct sk_buff *skb, __be32 src, __be32 dst,
u8 tos, int oif, struct net_device *dev,
struct in_device *idev, u32 *itag);
#ifdef CONFIG_IP_ROUTE_CLASSID
static inline int fib_num_tclassid_users(struct net *net)
{
- return net->ipv4.fib_num_tclassid_users;
+ return atomic_read(&net->ipv4.fib_num_tclassid_users);
}
#else
static inline int fib_num_tclassid_users(struct net *net)
@@ -389,32 +447,67 @@
#endif
int fib_unmerge(struct net *net);
+static inline bool nhc_l3mdev_matches_dev(const struct fib_nh_common *nhc,
+const struct net_device *dev)
+{
+ if (nhc->nhc_dev == dev ||
+ l3mdev_master_ifindex_rcu(nhc->nhc_dev) == dev->ifindex)
+ return true;
+
+ return false;
+}
+
/* Exported by fib_semantics.c */
int ip_fib_check_default(__be32 gw, struct net_device *dev);
int fib_sync_down_dev(struct net_device *dev, unsigned long event, bool force);
int fib_sync_down_addr(struct net_device *dev, __be32 local);
-int fib_sync_up(struct net_device *dev, unsigned int nh_flags);
+int fib_sync_up(struct net_device *dev, unsigned char nh_flags);
void fib_sync_mtu(struct net_device *dev, u32 orig_mtu);
+void fib_nhc_update_mtu(struct fib_nh_common *nhc, u32 new, u32 orig);
#ifdef CONFIG_IP_ROUTE_MULTIPATH
int fib_multipath_hash(const struct net *net, const struct flowi4 *fl4,
const struct sk_buff *skb, struct flow_keys *flkeys);
#endif
+int fib_check_nh(struct net *net, struct fib_nh *nh, u32 table, u8 scope,
+ struct netlink_ext_ack *extack);
void fib_select_multipath(struct fib_result *res, int hash);
void fib_select_path(struct net *net, struct fib_result *res,
struct flowi4 *fl4, const struct sk_buff *skb);
+int fib_nh_init(struct net *net, struct fib_nh *fib_nh,
+ struct fib_config *cfg, int nh_weight,
+ struct netlink_ext_ack *extack);
+void fib_nh_release(struct net *net, struct fib_nh *fib_nh);
+int fib_nh_common_init(struct net *net, struct fib_nh_common *nhc,
+ struct nlattr *fc_encap, u16 fc_encap_type,
+ void *cfg, gfp_t gfp_flags,
+ struct netlink_ext_ack *extack);
+void fib_nh_common_release(struct fib_nh_common *nhc);
+
/* Exported by fib_trie.c */
+void fib_alias_hw_flags_set(struct net *net, const struct fib_rt_info *fri);
void fib_trie_init(void);
struct fib_table *fib_trie_table(u32 id, struct fib_table *alias);
+bool fib_lookup_good_nhc(const struct fib_nh_common *nhc, int fib_flags,
+ const struct flowi4 *flp);
static inline void fib_combine_itag(u32 *itag, const struct fib_result *res)
{
#ifdef CONFIG_IP_ROUTE_CLASSID
+ struct fib_nh_common *nhc = res->nhc;
#ifdef CONFIG_IP_MULTIPLE_TABLES
u32 rtag;
#endif
- *itag = FIB_RES_NH(*res).nh_tclassid<<16;
+ if (nhc->nhc_family == AF_INET) {
+ struct fib_nh *nh;
+
+ nh = container_of(nhc, struct fib_nh, nh_common);
+ *itag = nh->nh_tclassid << 16;
+ } else {
+ *itag = 0;
+ }
+
#ifdef CONFIG_IP_MULTIPLE_TABLES
rtag = res->tclassid;
if (*itag == 0)
@@ -424,6 +517,7 @@
#endif
}
+void fib_flush(struct net *net);
void free_fib_info(struct fib_info *fi);
static inline void fib_info_hold(struct fib_info *fi)
@@ -452,4 +546,12 @@
u32 ip_mtu_from_fib_result(struct fib_result *res, __be32 daddr);
+int ip_valid_fib_dump_req(struct net *net, const struct nlmsghdr *nlh,
+ struct fib_dump_filter *filter,
+ struct netlink_callback *cb);
+
+int fib_nexthop_info(struct sk_buff *skb, const struct fib_nh_common *nh,
+ u8 rt_family, unsigned char *flags, bool skip_oif);
+int fib_add_nexthop(struct sk_buff *skb, const struct fib_nh_common *nh,
+ int nh_weight, u8 rt_family, u32 nh_tclassid);
#endif /* _NET_FIB_H */
--
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