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-rw-r--r--include/net/devlink.h41
-rw-r--r--include/net/dsa.h2
-rw-r--r--include/net/dst.h10
-rw-r--r--include/net/flow_dissector.h3
-rw-r--r--include/net/flow_offload.h9
-rw-r--r--include/net/genetlink.h10
-rw-r--r--include/net/inet_ecn.h25
-rw-r--r--include/net/ip_tunnels.h3
-rw-r--r--include/net/ip_vs.h15
-rw-r--r--include/net/netfilter/nf_tables.h23
-rw-r--r--include/net/netns/bpf.h7
-rw-r--r--include/net/pkt_sched.h11
-rw-r--r--include/net/sock.h3
-rw-r--r--include/net/udp_tunnel.h164
-rw-r--r--include/net/xsk_buff_pool.h6
15 files changed, 262 insertions, 70 deletions
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 428f55f8197c..913e8679ae35 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -52,7 +52,7 @@ struct devlink_port_phys_attrs {
* A physical port which is visible to the user
* for a given port flavour.
*/
- u32 split_subport_number;
+ u32 split_subport_number; /* If the port is split, this is the number of subport. */
};
struct devlink_port_pci_pf_attrs {
@@ -64,10 +64,18 @@ struct devlink_port_pci_vf_attrs {
u16 vf; /* Associated PCI VF for of the PCI PF for this port. */
};
+/**
+ * struct devlink_port_attrs - devlink port object
+ * @flavour: flavour of the port
+ * @split: indicates if this is split port
+ * @splittable: indicates if the port can be split.
+ * @lanes: maximum number of lanes the port supports. 0 value is not passed to netlink.
+ * @switch_id: if the port is part of switch, this is buffer with ID, otherwise this is NULL
+ */
struct devlink_port_attrs {
- u8 set:1,
- split:1,
- switch_port:1;
+ u8 split:1,
+ splittable:1;
+ u32 lanes;
enum devlink_port_flavour flavour;
struct netdev_phys_item_id switch_id;
union {
@@ -90,7 +98,11 @@ struct devlink_port {
enum devlink_port_type desired_type;
void *type_dev;
struct devlink_port_attrs attrs;
+ u8 attrs_set:1,
+ switch_port:1;
struct delayed_work type_warn_dw;
+ struct list_head reporter_list;
+ struct mutex reporters_lock; /* Protects reporter_list */
};
struct devlink_sb_pool_info {
@@ -1180,17 +1192,9 @@ void devlink_port_type_ib_set(struct devlink_port *devlink_port,
struct ib_device *ibdev);
void devlink_port_type_clear(struct devlink_port *devlink_port);
void devlink_port_attrs_set(struct devlink_port *devlink_port,
- enum devlink_port_flavour flavour,
- u32 port_number, bool split,
- u32 split_subport_number,
- const unsigned char *switch_id,
- unsigned char switch_id_len);
-void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port,
- const unsigned char *switch_id,
- unsigned char switch_id_len, u16 pf);
+ struct devlink_port_attrs *devlink_port_attrs);
+void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u16 pf);
void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port,
- const unsigned char *switch_id,
- unsigned char switch_id_len,
u16 pf, u16 vf);
int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
u32 size, u16 ingress_pools_count,
@@ -1334,9 +1338,18 @@ struct devlink_health_reporter *
devlink_health_reporter_create(struct devlink *devlink,
const struct devlink_health_reporter_ops *ops,
u64 graceful_period, void *priv);
+
+struct devlink_health_reporter *
+devlink_port_health_reporter_create(struct devlink_port *port,
+ const struct devlink_health_reporter_ops *ops,
+ u64 graceful_period, void *priv);
+
void
devlink_health_reporter_destroy(struct devlink_health_reporter *reporter);
+void
+devlink_port_health_reporter_destroy(struct devlink_health_reporter *reporter);
+
void *
devlink_health_reporter_priv(struct devlink_health_reporter *reporter);
int devlink_health_report(struct devlink_health_reporter *reporter,
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 4046ccd1945d..b28c95c76762 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -44,6 +44,7 @@ struct phylink_link_state;
#define DSA_TAG_PROTO_KSZ8795_VALUE 14
#define DSA_TAG_PROTO_OCELOT_VALUE 15
#define DSA_TAG_PROTO_AR9331_VALUE 16
+#define DSA_TAG_PROTO_RTL4_A_VALUE 17
enum dsa_tag_protocol {
DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE,
@@ -63,6 +64,7 @@ enum dsa_tag_protocol {
DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE,
DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE,
DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE,
+ DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE,
};
struct packet_type;
diff --git a/include/net/dst.h b/include/net/dst.h
index 07adfacd8088..852d8fb36ab7 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -400,7 +400,15 @@ static inline struct neighbour *dst_neigh_lookup(const struct dst_entry *dst, co
static inline struct neighbour *dst_neigh_lookup_skb(const struct dst_entry *dst,
struct sk_buff *skb)
{
- struct neighbour *n = dst->ops->neigh_lookup(dst, skb, NULL);
+ struct neighbour *n = NULL;
+
+ /* The packets from tunnel devices (eg bareudp) may have only
+ * metadata in the dst pointer of skb. Hence a pointer check of
+ * neigh_lookup is needed.
+ */
+ if (dst->ops->neigh_lookup)
+ n = dst->ops->neigh_lookup(dst, skb, NULL);
+
return IS_ERR(n) ? NULL : n;
}
diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h
index a7eba43fe4e4..4b6e36288ddd 100644
--- a/include/net/flow_dissector.h
+++ b/include/net/flow_dissector.h
@@ -372,7 +372,8 @@ flow_dissector_init_keys(struct flow_dissector_key_control *key_control,
}
#ifdef CONFIG_BPF_SYSCALL
-int flow_dissector_bpf_prog_attach(struct net *net, struct bpf_prog *prog);
+int flow_dissector_bpf_prog_attach_check(struct net *net,
+ struct bpf_prog *prog);
#endif /* CONFIG_BPF_SYSCALL */
#endif
diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h
index de395498440d..9f88a7b730a8 100644
--- a/include/net/flow_offload.h
+++ b/include/net/flow_offload.h
@@ -444,6 +444,7 @@ struct flow_block_offload {
struct list_head cb_list;
struct list_head *driver_block_list;
struct netlink_ext_ack *extack;
+ struct Qdisc *sch;
};
enum tc_setup_type;
@@ -455,6 +456,7 @@ struct flow_block_cb;
struct flow_block_indr {
struct list_head list;
struct net_device *dev;
+ struct Qdisc *sch;
enum flow_block_binder_type binder_type;
void *data;
void *cb_priv;
@@ -479,7 +481,8 @@ struct flow_block_cb *flow_indr_block_cb_alloc(flow_setup_cb_t *cb,
void *cb_ident, void *cb_priv,
void (*release)(void *cb_priv),
struct flow_block_offload *bo,
- struct net_device *dev, void *data,
+ struct net_device *dev,
+ struct Qdisc *sch, void *data,
void *indr_cb_priv,
void (*cleanup)(struct flow_block_cb *block_cb));
void flow_block_cb_free(struct flow_block_cb *block_cb);
@@ -553,7 +556,7 @@ static inline void flow_block_init(struct flow_block *flow_block)
INIT_LIST_HEAD(&flow_block->cb_list);
}
-typedef int flow_indr_block_bind_cb_t(struct net_device *dev, void *cb_priv,
+typedef int flow_indr_block_bind_cb_t(struct net_device *dev, struct Qdisc *sch, void *cb_priv,
enum tc_setup_type type, void *type_data,
void *data,
void (*cleanup)(struct flow_block_cb *block_cb));
@@ -561,7 +564,7 @@ typedef int flow_indr_block_bind_cb_t(struct net_device *dev, void *cb_priv,
int flow_indr_dev_register(flow_indr_block_bind_cb_t *cb, void *cb_priv);
void flow_indr_dev_unregister(flow_indr_block_bind_cb_t *cb, void *cb_priv,
void (*release)(void *cb_priv));
-int flow_indr_dev_setup_offload(struct net_device *dev,
+int flow_indr_dev_setup_offload(struct net_device *dev, struct Qdisc *sch,
enum tc_setup_type type, void *data,
struct flow_block_offload *bo,
void (*cleanup)(struct flow_block_cb *block_cb));
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 74950663bb00..6e5f1e1aa822 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -35,13 +35,6 @@ struct genl_info;
* do additional, common, filtering and return an error
* @post_doit: called after an operation's doit callback, it may
* undo operations done by pre_doit, for example release locks
- * @mcast_bind: a socket bound to the given multicast group (which
- * is given as the offset into the groups array)
- * @mcast_unbind: a socket was unbound from the given multicast group.
- * Note that unbind() will not be called symmetrically if the
- * generic netlink family is removed while there are still open
- * sockets.
- * @attrbuf: buffer to store parsed attributes (private)
* @mcgrps: multicast groups used by this family
* @n_mcgrps: number of multicast groups
* @mcgrp_offset: starting number of multicast group IDs in this family
@@ -64,9 +57,6 @@ struct genl_family {
void (*post_doit)(const struct genl_ops *ops,
struct sk_buff *skb,
struct genl_info *info);
- int (*mcast_bind)(struct net *net, int group);
- void (*mcast_unbind)(struct net *net, int group);
- struct nlattr ** attrbuf; /* private */
const struct genl_ops * ops;
const struct genl_multicast_group *mcgrps;
unsigned int n_ops;
diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h
index 0f0d1efe06dd..e1eaf1780288 100644
--- a/include/net/inet_ecn.h
+++ b/include/net/inet_ecn.h
@@ -4,6 +4,7 @@
#include <linux/ip.h>
#include <linux/skbuff.h>
+#include <linux/if_vlan.h>
#include <net/inet_sock.h>
#include <net/dsfield.h>
@@ -172,7 +173,7 @@ static inline void ipv6_copy_dscp(unsigned int dscp, struct ipv6hdr *inner)
static inline int INET_ECN_set_ce(struct sk_buff *skb)
{
- switch (skb->protocol) {
+ switch (skb_protocol(skb, true)) {
case cpu_to_be16(ETH_P_IP):
if (skb_network_header(skb) + sizeof(struct iphdr) <=
skb_tail_pointer(skb))
@@ -191,7 +192,7 @@ static inline int INET_ECN_set_ce(struct sk_buff *skb)
static inline int INET_ECN_set_ect1(struct sk_buff *skb)
{
- switch (skb->protocol) {
+ switch (skb_protocol(skb, true)) {
case cpu_to_be16(ETH_P_IP):
if (skb_network_header(skb) + sizeof(struct iphdr) <=
skb_tail_pointer(skb))
@@ -272,12 +273,16 @@ static inline int IP_ECN_decapsulate(const struct iphdr *oiph,
{
__u8 inner;
- if (skb->protocol == htons(ETH_P_IP))
+ switch (skb_protocol(skb, true)) {
+ case htons(ETH_P_IP):
inner = ip_hdr(skb)->tos;
- else if (skb->protocol == htons(ETH_P_IPV6))
+ break;
+ case htons(ETH_P_IPV6):
inner = ipv6_get_dsfield(ipv6_hdr(skb));
- else
+ break;
+ default:
return 0;
+ }
return INET_ECN_decapsulate(skb, oiph->tos, inner);
}
@@ -287,12 +292,16 @@ static inline int IP6_ECN_decapsulate(const struct ipv6hdr *oipv6h,
{
__u8 inner;
- if (skb->protocol == htons(ETH_P_IP))
+ switch (skb_protocol(skb, true)) {
+ case htons(ETH_P_IP):
inner = ip_hdr(skb)->tos;
- else if (skb->protocol == htons(ETH_P_IPV6))
+ break;
+ case htons(ETH_P_IPV6):
inner = ipv6_get_dsfield(ipv6_hdr(skb));
- else
+ break;
+ default:
return 0;
+ }
return INET_ECN_decapsulate(skb, ipv6_get_dsfield(oipv6h), inner);
}
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 076e5d7db7d3..36025dea7612 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -290,6 +290,9 @@ int ip_tunnel_newlink(struct net_device *dev, struct nlattr *tb[],
struct ip_tunnel_parm *p, __u32 fwmark);
void ip_tunnel_setup(struct net_device *dev, unsigned int net_id);
+extern const struct header_ops ip_tunnel_header_ops;
+__be16 ip_tunnel_parse_protocol(const struct sk_buff *skb);
+
struct ip_tunnel_encap_ops {
size_t (*encap_hlen)(struct ip_tunnel_encap *e);
int (*build_header)(struct sk_buff *skb, struct ip_tunnel_encap *e,
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 83be2d93b407..011f407b76fe 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -874,6 +874,7 @@ struct netns_ipvs {
struct ip_vs_stats tot_stats; /* Statistics & est. */
int num_services; /* no of virtual services */
+ int num_services6; /* IPv6 virtual services */
/* Trash for destinations */
struct list_head dest_trash;
@@ -960,6 +961,7 @@ struct netns_ipvs {
* are not supported when synchronization is enabled.
*/
unsigned int mixed_address_family_dests;
+ unsigned int hooks_afmask; /* &1=AF_INET, &2=AF_INET6 */
};
#define DEFAULT_SYNC_THRESHOLD 3
@@ -1624,18 +1626,16 @@ static inline void ip_vs_conn_drop_conntrack(struct ip_vs_conn *cp)
}
#endif /* CONFIG_IP_VS_NFCT */
-/* Really using conntrack? */
-static inline bool ip_vs_conn_uses_conntrack(struct ip_vs_conn *cp,
- struct sk_buff *skb)
+/* Using old conntrack that can not be redirected to another real server? */
+static inline bool ip_vs_conn_uses_old_conntrack(struct ip_vs_conn *cp,
+ struct sk_buff *skb)
{
#ifdef CONFIG_IP_VS_NFCT
enum ip_conntrack_info ctinfo;
struct nf_conn *ct;
- if (!(cp->flags & IP_VS_CONN_F_NFCT))
- return false;
ct = nf_ct_get(skb, &ctinfo);
- if (ct)
+ if (ct && nf_ct_is_confirmed(ct))
return true;
#endif
return false;
@@ -1670,6 +1670,9 @@ static inline void ip_vs_unregister_conntrack(struct ip_vs_service *svc)
#endif
}
+int ip_vs_register_hooks(struct netns_ipvs *ipvs, unsigned int af);
+void ip_vs_unregister_hooks(struct netns_ipvs *ipvs, unsigned int af);
+
static inline int
ip_vs_dest_conn_overhead(struct ip_vs_dest *dest)
{
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 6f0f6fca9ac3..822c26766330 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -899,6 +899,8 @@ static inline struct nft_userdata *nft_userdata(const struct nft_rule *rule)
return (void *)&rule->data[rule->dlen];
}
+void nf_tables_rule_release(const struct nft_ctx *ctx, struct nft_rule *rule);
+
static inline void nft_set_elem_update_expr(const struct nft_set_ext *ext,
struct nft_regs *regs,
const struct nft_pktinfo *pkt)
@@ -921,11 +923,6 @@ static inline void nft_set_elem_update_expr(const struct nft_set_ext *ext,
(expr) != (last); \
(expr) = nft_expr_next(expr))
-enum nft_chain_flags {
- NFT_BASE_CHAIN = 0x1,
- NFT_CHAIN_HW_OFFLOAD = 0x2,
-};
-
#define NFT_CHAIN_POLICY_UNSET U8_MAX
/**
@@ -949,7 +946,8 @@ struct nft_chain {
struct nft_table *table;
u64 handle;
u32 use;
- u8 flags:6,
+ u8 flags:5,
+ bound:1,
genmask:2;
char *name;
@@ -994,6 +992,14 @@ int nft_chain_validate_dependency(const struct nft_chain *chain,
int nft_chain_validate_hooks(const struct nft_chain *chain,
unsigned int hook_flags);
+static inline bool nft_chain_is_bound(struct nft_chain *chain)
+{
+ return (chain->flags & NFT_CHAIN_BINDING) && chain->bound;
+}
+
+void nft_chain_del(struct nft_chain *chain);
+void nf_tables_chain_destroy(struct nft_ctx *ctx);
+
struct nft_stats {
u64 bytes;
u64 pkts;
@@ -1036,7 +1042,7 @@ static inline struct nft_base_chain *nft_base_chain(const struct nft_chain *chai
static inline bool nft_is_base_chain(const struct nft_chain *chain)
{
- return chain->flags & NFT_BASE_CHAIN;
+ return chain->flags & NFT_CHAIN_BASE;
}
int __nft_release_basechain(struct nft_ctx *ctx);
@@ -1433,6 +1439,7 @@ struct nft_trans_chain {
char *name;
struct nft_stats __percpu *stats;
u8 policy;
+ u32 chain_id;
};
#define nft_trans_chain_update(trans) \
@@ -1443,6 +1450,8 @@ struct nft_trans_chain {
(((struct nft_trans_chain *)trans->data)->stats)
#define nft_trans_chain_policy(trans) \
(((struct nft_trans_chain *)trans->data)->policy)
+#define nft_trans_chain_id(trans) \
+ (((struct nft_trans_chain *)trans->data)->chain_id)
struct nft_trans_table {
bool update;
diff --git a/include/net/netns/bpf.h b/include/net/netns/bpf.h
index a8dce2a380c8..0ca6a1b87185 100644
--- a/include/net/netns/bpf.h
+++ b/include/net/netns/bpf.h
@@ -9,10 +9,13 @@
#include <linux/bpf-netns.h>
struct bpf_prog;
+struct bpf_prog_array;
struct netns_bpf {
- struct bpf_prog __rcu *progs[MAX_NETNS_BPF_ATTACH_TYPE];
- struct bpf_link *links[MAX_NETNS_BPF_ATTACH_TYPE];
+ /* Array of programs to run compiled from progs or links */
+ struct bpf_prog_array __rcu *run_array[MAX_NETNS_BPF_ATTACH_TYPE];
+ struct bpf_prog *progs[MAX_NETNS_BPF_ATTACH_TYPE];
+ struct list_head links[MAX_NETNS_BPF_ATTACH_TYPE];
};
#endif /* __NETNS_BPF_H__ */
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 9092e697059e..ac8c890a2657 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -136,17 +136,6 @@ static inline void qdisc_run(struct Qdisc *q)
}
}
-static inline __be16 tc_skb_protocol(const struct sk_buff *skb)
-{
- /* We need to take extra care in case the skb came via
- * vlan accelerated path. In that case, use skb->vlan_proto
- * as the original vlan header was already stripped.
- */
- if (skb_vlan_tag_present(skb))
- return skb->vlan_proto;
- return skb->protocol;
-}
-
/* Calculate maximal size of packet seen by hard_start_xmit
routine of this device.
*/
diff --git a/include/net/sock.h b/include/net/sock.h
index 84c813dd0152..4bf884165148 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -533,7 +533,8 @@ enum sk_pacing {
* be copied.
*/
#define SK_USER_DATA_NOCOPY 1UL
-#define SK_USER_DATA_PTRMASK ~(SK_USER_DATA_NOCOPY)
+#define SK_USER_DATA_BPF 2UL /* Managed by BPF */
+#define SK_USER_DATA_PTRMASK ~(SK_USER_DATA_NOCOPY | SK_USER_DATA_BPF)
/**
* sk_user_data_is_nocopy - Test if sk_user_data pointer must not be copied
diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h
index e7312ceb2794..dd20ce99740c 100644
--- a/include/net/udp_tunnel.h
+++ b/include/net/udp_tunnel.h
@@ -106,15 +106,16 @@ void setup_udp_tunnel_sock(struct net *net, struct socket *sock,
* call this function to perform Tx offloads on outgoing traffic.
*/
enum udp_parsable_tunnel_type {
- UDP_TUNNEL_TYPE_VXLAN, /* RFC 7348 */
- UDP_TUNNEL_TYPE_GENEVE, /* draft-ietf-nvo3-geneve */
- UDP_TUNNEL_TYPE_VXLAN_GPE, /* draft-ietf-nvo3-vxlan-gpe */
+ UDP_TUNNEL_TYPE_VXLAN = BIT(0), /* RFC 7348 */
+ UDP_TUNNEL_TYPE_GENEVE = BIT(1), /* draft-ietf-nvo3-geneve */
+ UDP_TUNNEL_TYPE_VXLAN_GPE = BIT(2), /* draft-ietf-nvo3-vxlan-gpe */
};
struct udp_tunnel_info {
unsigned short type;
sa_family_t sa_family;
__be16 port;
+ u8 hw_priv;
};
/* Notify network devices of offloadable types */
@@ -181,4 +182,161 @@ static inline void udp_tunnel_encap_enable(struct socket *sock)
udp_encap_enable();
}
+#define UDP_TUNNEL_NIC_MAX_TABLES 4
+
+enum udp_tunnel_nic_info_flags {
+ /* Device callbacks may sleep */
+ UDP_TUNNEL_NIC_INFO_MAY_SLEEP = BIT(0),
+ /* Device only supports offloads when it's open, all ports
+ * will be removed before close and re-added after open.
+ */
+ UDP_TUNNEL_NIC_INFO_OPEN_ONLY = BIT(1),
+ /* Device supports only IPv4 tunnels */
+ UDP_TUNNEL_NIC_INFO_IPV4_ONLY = BIT(2),
+};
+
+/**
+ * struct udp_tunnel_nic_info - driver UDP tunnel offload information
+ * @set_port: callback for adding a new port
+ * @unset_port: callback for removing a port
+ * @sync_table: callback for syncing the entire port table at once
+ * @flags: device flags from enum udp_tunnel_nic_info_flags
+ * @tables: UDP port tables this device has
+ * @tables.n_entries: number of entries in this table
+ * @tables.tunnel_types: types of tunnels this table accepts
+ *
+ * Drivers are expected to provide either @set_port and @unset_port callbacks
+ * or the @sync_table callback. Callbacks are invoked with rtnl lock held.
+ *
+ * Known limitations:
+ * - UDP tunnel port notifications are fundamentally best-effort -
+ * it is likely the driver will both see skbs which use a UDP tunnel port,
+ * while not being a tunneled skb, and tunnel skbs from other ports -
+ * drivers should only use these ports for non-critical RX-side offloads,
+ * e.g. the checksum offload;
+ * - none of the devices care about the socket family at present, so we don't
+ * track it. Please extend this code if you care.
+ */
+struct udp_tunnel_nic_info {
+ /* one-by-one */
+ int (*set_port)(struct net_device *dev,
+ unsigned int table, unsigned int entry,
+ struct udp_tunnel_info *ti);
+ int (*unset_port)(struct net_device *dev,
+ unsigned int table, unsigned int entry,
+ struct udp_tunnel_info *ti);
+
+ /* all at once */
+ int (*sync_table)(struct net_device *dev, unsigned int table);
+
+ unsigned int flags;
+
+ struct udp_tunnel_nic_table_info {
+ unsigned int n_entries;
+ unsigned int tunnel_types;
+ } tables[UDP_TUNNEL_NIC_MAX_TABLES];
+};
+
+/* UDP tunnel module dependencies
+ *
+ * Tunnel drivers are expected to have a hard dependency on the udp_tunnel
+ * module. NIC drivers are not, they just attach their
+ * struct udp_tunnel_nic_info to the netdev and wait for callbacks to come.
+ * Loading a tunnel driver will cause the udp_tunnel module to be loaded
+ * and only then will all the required state structures be allocated.
+ * Since we want a weak dependency from the drivers and the core to udp_tunnel
+ * we call things through the following stubs.
+ */
+struct udp_tunnel_nic_ops {
+ void (*get_port)(struct net_device *dev, unsigned int table,
+ unsigned int idx, struct udp_tunnel_info *ti);
+ void (*set_port_priv)(struct net_device *dev, unsigned int table,
+ unsigned int idx, u8 priv);
+ void (*add_port)(struct net_device *dev, struct udp_tunnel_info *ti);
+ void (*del_port)(struct net_device *dev, struct udp_tunnel_info *ti);
+ void (*reset_ntf)(struct net_device *dev);
+
+ size_t (*dump_size)(struct net_device *dev, unsigned int table);
+ int (*dump_write)(struct net_device *dev, unsigned int table,
+ struct sk_buff *skb);
+};
+
+#ifdef CONFIG_INET
+extern const struct udp_tunnel_nic_ops *udp_tunnel_nic_ops;
+#else
+#define udp_tunnel_nic_ops ((struct udp_tunnel_nic_ops *)NULL)
+#endif
+
+static inline void
+udp_tunnel_nic_get_port(struct net_device *dev, unsigned int table,
+ unsigned int idx, struct udp_tunnel_info *ti)
+{
+ /* This helper is used from .sync_table, we indicate empty entries
+ * by zero'ed @ti. Drivers which need to know the details of a port
+ * when it gets deleted should use the .set_port / .unset_port
+ * callbacks.
+ * Zero out here, otherwise !CONFIG_INET causes uninitilized warnings.
+ */
+ memset(ti, 0, sizeof(*ti));
+
+ if (udp_tunnel_nic_ops)
+ udp_tunnel_nic_ops->get_port(dev, table, idx, ti);
+}
+
+static inline void
+udp_tunnel_nic_set_port_priv(struct net_device *dev, unsigned int table,
+ unsigned int idx, u8 priv)
+{
+ if (udp_tunnel_nic_ops)
+ udp_tunnel_nic_ops->set_port_priv(dev, table, idx, priv);
+}
+
+static inline void
+udp_tunnel_nic_add_port(struct net_device *dev, struct udp_tunnel_info *ti)
+{
+ if (udp_tunnel_nic_ops)
+ udp_tunnel_nic_ops->add_port(dev, ti);
+}
+
+static inline void
+udp_tunnel_nic_del_port(struct net_device *dev, struct udp_tunnel_info *ti)
+{
+ if (udp_tunnel_nic_ops)
+ udp_tunnel_nic_ops->del_port(dev, ti);
+}
+
+/**
+ * udp_tunnel_nic_reset_ntf() - device-originating reset notification
+ * @dev: network interface device structure
+ *
+ * Called by the driver to inform the core that the entire UDP tunnel port
+ * state has been lost, usually due to device reset. Core will assume device
+ * forgot all the ports and issue .set_port and .sync_table callbacks as
+ * necessary.
+ *
+ * This function must be called with rtnl lock held, and will issue all
+ * the callbacks before returning.
+ */
+static inline void udp_tunnel_nic_reset_ntf(struct net_device *dev)
+{
+ if (udp_tunnel_nic_ops)
+ udp_tunnel_nic_ops->reset_ntf(dev);
+}
+
+static inline size_t
+udp_tunnel_nic_dump_size(struct net_device *dev, unsigned int table)
+{
+ if (!udp_tunnel_nic_ops)
+ return 0;
+ return udp_tunnel_nic_ops->dump_size(dev, table);
+}
+
+static inline int
+udp_tunnel_nic_dump_write(struct net_device *dev, unsigned int table,
+ struct sk_buff *skb)
+{
+ if (!udp_tunnel_nic_ops)
+ return 0;
+ return udp_tunnel_nic_ops->dump_write(dev, table, skb);
+}
#endif
diff --git a/include/net/xsk_buff_pool.h b/include/net/xsk_buff_pool.h
index a4ff226505c9..6842990e2712 100644
--- a/include/net/xsk_buff_pool.h
+++ b/include/net/xsk_buff_pool.h
@@ -40,7 +40,7 @@ struct xsk_buff_pool {
u32 headroom;
u32 chunk_size;
u32 frame_len;
- bool cheap_dma;
+ bool dma_need_sync;
bool unaligned;
void *addrs;
struct device *dev;
@@ -80,7 +80,7 @@ static inline dma_addr_t xp_get_frame_dma(struct xdp_buff_xsk *xskb)
void xp_dma_sync_for_cpu_slow(struct xdp_buff_xsk *xskb);
static inline void xp_dma_sync_for_cpu(struct xdp_buff_xsk *xskb)
{
- if (xskb->pool->cheap_dma)
+ if (!xskb->pool->dma_need_sync)
return;
xp_dma_sync_for_cpu_slow(xskb);
@@ -91,7 +91,7 @@ void xp_dma_sync_for_device_slow(struct xsk_buff_pool *pool, dma_addr_t dma,
static inline void xp_dma_sync_for_device(struct xsk_buff_pool *pool,
dma_addr_t dma, size_t size)
{
- if (pool->cheap_dma)
+ if (!pool->dma_need_sync)
return;
xp_dma_sync_for_device_slow(pool, dma, size);
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-07 00:35:58 +0000