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-rw-r--r--include/asm-generic/sections.h14
-rw-r--r--include/linux/bpf.h1
-rw-r--r--include/linux/btf_ids.h20
-rw-r--r--include/linux/ethtool.h26
-rw-r--r--include/linux/filter.h7
-rw-r--r--include/linux/mdio/mdio-mscc-miim.h19
-rw-r--r--include/linux/mmc/sdio_ids.h1
-rw-r--r--include/linux/net/intel/iidc.h7
-rw-r--r--include/linux/netdevice.h451
-rw-r--r--include/linux/once.h2
-rw-r--r--include/linux/phy.h2
-rw-r--r--include/linux/phylink.h38
-rw-r--r--include/linux/regmap.h7
-rw-r--r--include/linux/siphash.h2
-rw-r--r--include/linux/skbuff.h55
-rw-r--r--include/linux/skmsg.h6
-rw-r--r--include/linux/stmmac.h2
-rw-r--r--include/linux/wwan.h2
-rw-r--r--include/net/af_unix.h3
-rw-r--r--include/net/arp.h8
-rw-r--r--include/net/bluetooth/bluetooth.h2
-rw-r--r--include/net/bluetooth/hci.h1
-rw-r--r--include/net/bluetooth/hci_core.h27
-rw-r--r--include/net/bluetooth/hci_sync.h102
-rw-r--r--include/net/bond_options.h1
-rw-r--r--include/net/bonding.h1
-rw-r--r--include/net/devlink.h34
-rw-r--r--include/net/dsa.h4
-rw-r--r--include/net/gro.h421
-rw-r--r--include/net/inet_connection_sock.h2
-rw-r--r--include/net/inet_sock.h12
-rw-r--r--include/net/ip.h9
-rw-r--r--include/net/ip6_checksum.h20
-rw-r--r--include/net/ip6_route.h18
-rw-r--r--include/net/ipv6.h2
-rw-r--r--include/net/iucv/af_iucv.h10
-rw-r--r--include/net/ndisc.h16
-rw-r--r--include/net/neighbour.h11
-rw-r--r--include/net/netns/core.h1
-rw-r--r--include/net/sctp/structs.h7
-rw-r--r--include/net/sock.h84
-rw-r--r--include/net/tcp.h18
-rw-r--r--include/net/udp.h24
-rw-r--r--include/net/vxlan.h1
-rw-r--r--include/soc/mscc/ocelot.h59
-rw-r--r--include/soc/mscc/ocelot_ana.h10
-rw-r--r--include/soc/mscc/ocelot_vcap.h1
-rw-r--r--include/uapi/linux/bpf.h21
-rw-r--r--include/uapi/linux/btf.h3
-rw-r--r--include/uapi/linux/ethtool.h1
-rw-r--r--include/uapi/linux/ethtool_netlink.h1
-rw-r--r--include/uapi/linux/if_link.h1
-rw-r--r--include/uapi/linux/tty.h1
53 files changed, 964 insertions, 635 deletions
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index 1dfadb2e878d..76a0f16e56cf 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -130,18 +130,24 @@ static inline bool init_section_intersects(void *virt, size_t size)
/**
* is_kernel_core_data - checks if the pointer address is located in the
- * .data section
+ * .data or .bss section
*
* @addr: address to check
*
- * Returns: true if the address is located in .data, false otherwise.
+ * Returns: true if the address is located in .data or .bss, false otherwise.
* Note: On some archs it may return true for core RODATA, and false
* for others. But will always be true for core RW data.
*/
static inline bool is_kernel_core_data(unsigned long addr)
{
- return addr >= (unsigned long)_sdata &&
- addr < (unsigned long)_edata;
+ if (addr >= (unsigned long)_sdata && addr < (unsigned long)_edata)
+ return true;
+
+ if (addr >= (unsigned long)__bss_start &&
+ addr < (unsigned long)__bss_stop)
+ return true;
+
+ return false;
}
/**
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index e7a163a3146b..3de38d7f0ced 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -2164,6 +2164,7 @@ extern const struct bpf_func_proto bpf_btf_find_by_name_kind_proto;
extern const struct bpf_func_proto bpf_sk_setsockopt_proto;
extern const struct bpf_func_proto bpf_sk_getsockopt_proto;
extern const struct bpf_func_proto bpf_kallsyms_lookup_name_proto;
+extern const struct bpf_func_proto bpf_find_vma_proto;
const struct bpf_func_proto *tracing_prog_func_proto(
enum bpf_func_id func_id, const struct bpf_prog *prog);
diff --git a/include/linux/btf_ids.h b/include/linux/btf_ids.h
index 47d9abfbdb55..919c0fde1c51 100644
--- a/include/linux/btf_ids.h
+++ b/include/linux/btf_ids.h
@@ -73,7 +73,7 @@ asm( \
__BTF_ID_LIST(name, local) \
extern u32 name[];
-#define BTF_ID_LIST_GLOBAL(name) \
+#define BTF_ID_LIST_GLOBAL(name, n) \
__BTF_ID_LIST(name, globl)
/* The BTF_ID_LIST_SINGLE macro defines a BTF_ID_LIST with
@@ -83,7 +83,7 @@ __BTF_ID_LIST(name, globl)
BTF_ID_LIST(name) \
BTF_ID(prefix, typename)
#define BTF_ID_LIST_GLOBAL_SINGLE(name, prefix, typename) \
- BTF_ID_LIST_GLOBAL(name) \
+ BTF_ID_LIST_GLOBAL(name, 1) \
BTF_ID(prefix, typename)
/*
@@ -149,7 +149,7 @@ extern struct btf_id_set name;
#define BTF_ID_LIST(name) static u32 name[5];
#define BTF_ID(prefix, name)
#define BTF_ID_UNUSED
-#define BTF_ID_LIST_GLOBAL(name) u32 name[1];
+#define BTF_ID_LIST_GLOBAL(name, n) u32 name[n];
#define BTF_ID_LIST_SINGLE(name, prefix, typename) static u32 name[1];
#define BTF_ID_LIST_GLOBAL_SINGLE(name, prefix, typename) u32 name[1];
#define BTF_SET_START(name) static struct btf_id_set name = { 0 };
@@ -189,6 +189,18 @@ MAX_BTF_SOCK_TYPE,
extern u32 btf_sock_ids[];
#endif
-extern u32 btf_task_struct_ids[];
+#define BTF_TRACING_TYPE_xxx \
+ BTF_TRACING_TYPE(BTF_TRACING_TYPE_TASK, task_struct) \
+ BTF_TRACING_TYPE(BTF_TRACING_TYPE_FILE, file) \
+ BTF_TRACING_TYPE(BTF_TRACING_TYPE_VMA, vm_area_struct)
+
+enum {
+#define BTF_TRACING_TYPE(name, type) name,
+BTF_TRACING_TYPE_xxx
+#undef BTF_TRACING_TYPE
+MAX_BTF_TRACING_TYPE,
+};
+
+extern u32 btf_tracing_ids[];
#endif
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 845a0ffc16ee..a26f37a27167 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -67,6 +67,22 @@ enum {
ETH_RSS_HASH_FUNCS_COUNT
};
+/**
+ * struct kernel_ethtool_ringparam - RX/TX ring configuration
+ * @rx_buf_len: Current length of buffers on the rx ring.
+ */
+struct kernel_ethtool_ringparam {
+ u32 rx_buf_len;
+};
+
+/**
+ * enum ethtool_supported_ring_param - indicator caps for setting ring params
+ * @ETHTOOL_RING_USE_RX_BUF_LEN: capture for setting rx_buf_len
+ */
+enum ethtool_supported_ring_param {
+ ETHTOOL_RING_USE_RX_BUF_LEN = BIT(0),
+};
+
#define __ETH_RSS_HASH_BIT(bit) ((u32)1 << (bit))
#define __ETH_RSS_HASH(name) __ETH_RSS_HASH_BIT(ETH_RSS_HASH_##name##_BIT)
@@ -432,6 +448,7 @@ struct ethtool_module_power_mode_params {
* @cap_link_lanes_supported: indicates if the driver supports lanes
* parameter.
* @supported_coalesce_params: supported types of interrupt coalescing.
+ * @supported_ring_params: supported ring params.
* @get_drvinfo: Report driver/device information. Should only set the
* @driver, @version, @fw_version and @bus_info fields. If not
* implemented, the @driver and @bus_info fields will be filled in
@@ -613,6 +630,7 @@ struct ethtool_module_power_mode_params {
struct ethtool_ops {
u32 cap_link_lanes_supported:1;
u32 supported_coalesce_params;
+ u32 supported_ring_params;
void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *);
int (*get_regs_len)(struct net_device *);
void (*get_regs)(struct net_device *, struct ethtool_regs *, void *);
@@ -638,9 +656,13 @@ struct ethtool_ops {
struct kernel_ethtool_coalesce *,
struct netlink_ext_ack *);
void (*get_ringparam)(struct net_device *,
- struct ethtool_ringparam *);
+ struct ethtool_ringparam *,
+ struct kernel_ethtool_ringparam *,
+ struct netlink_ext_ack *);
int (*set_ringparam)(struct net_device *,
- struct ethtool_ringparam *);
+ struct ethtool_ringparam *,
+ struct kernel_ethtool_ringparam *,
+ struct netlink_ext_ack *);
void (*get_pause_stats)(struct net_device *dev,
struct ethtool_pause_stats *pause_stats);
void (*get_pauseparam)(struct net_device *,
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 24b7ed2677af..b6a216eb217a 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -1374,6 +1374,7 @@ struct bpf_sk_lookup_kern {
const struct in6_addr *daddr;
} v6;
struct sock *selected_sk;
+ u32 ingress_ifindex;
bool no_reuseport;
};
@@ -1436,7 +1437,7 @@ extern struct static_key_false bpf_sk_lookup_enabled;
static inline bool bpf_sk_lookup_run_v4(struct net *net, int protocol,
const __be32 saddr, const __be16 sport,
const __be32 daddr, const u16 dport,
- struct sock **psk)
+ const int ifindex, struct sock **psk)
{
struct bpf_prog_array *run_array;
struct sock *selected_sk = NULL;
@@ -1452,6 +1453,7 @@ static inline bool bpf_sk_lookup_run_v4(struct net *net, int protocol,
.v4.daddr = daddr,
.sport = sport,
.dport = dport,
+ .ingress_ifindex = ifindex,
};
u32 act;
@@ -1474,7 +1476,7 @@ static inline bool bpf_sk_lookup_run_v6(struct net *net, int protocol,
const __be16 sport,
const struct in6_addr *daddr,
const u16 dport,
- struct sock **psk)
+ const int ifindex, struct sock **psk)
{
struct bpf_prog_array *run_array;
struct sock *selected_sk = NULL;
@@ -1490,6 +1492,7 @@ static inline bool bpf_sk_lookup_run_v6(struct net *net, int protocol,
.v6.daddr = daddr,
.sport = sport,
.dport = dport,
+ .ingress_ifindex = ifindex,
};
u32 act;
diff --git a/include/linux/mdio/mdio-mscc-miim.h b/include/linux/mdio/mdio-mscc-miim.h
new file mode 100644
index 000000000000..5b4ed2c3cbb9
--- /dev/null
+++ b/include/linux/mdio/mdio-mscc-miim.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ * Driver for the MDIO interface of Microsemi network switches.
+ *
+ * Author: Colin Foster <colin.foster@in-advantage.com>
+ * Copyright (C) 2021 Innovative Advantage
+ */
+#ifndef MDIO_MSCC_MIIM_H
+#define MDIO_MSCC_MIIM_H
+
+#include <linux/device.h>
+#include <linux/phy.h>
+#include <linux/regmap.h>
+
+int mscc_miim_setup(struct device *device, struct mii_bus **bus,
+ const char *name, struct regmap *mii_regmap,
+ int status_offset);
+
+#endif
diff --git a/include/linux/mmc/sdio_ids.h b/include/linux/mmc/sdio_ids.h
index a85c9f0bd470..53f0efa0bccf 100644
--- a/include/linux/mmc/sdio_ids.h
+++ b/include/linux/mmc/sdio_ids.h
@@ -105,6 +105,7 @@
#define SDIO_VENDOR_ID_MEDIATEK 0x037a
#define SDIO_DEVICE_ID_MEDIATEK_MT7663 0x7663
#define SDIO_DEVICE_ID_MEDIATEK_MT7668 0x7668
+#define SDIO_DEVICE_ID_MEDIATEK_MT7961 0x7961
#define SDIO_VENDOR_ID_MICROCHIP_WILC 0x0296
#define SDIO_DEVICE_ID_MICROCHIP_WILC1000 0x5347
diff --git a/include/linux/net/intel/iidc.h b/include/linux/net/intel/iidc.h
index e32f6712aee0..1289593411d3 100644
--- a/include/linux/net/intel/iidc.h
+++ b/include/linux/net/intel/iidc.h
@@ -26,6 +26,11 @@ enum iidc_reset_type {
IIDC_GLOBR,
};
+enum iidc_rdma_protocol {
+ IIDC_RDMA_PROTOCOL_IWARP = BIT(0),
+ IIDC_RDMA_PROTOCOL_ROCEV2 = BIT(1),
+};
+
#define IIDC_MAX_USER_PRIORITY 8
/* Struct to hold per RDMA Qset info */
@@ -70,8 +75,6 @@ int ice_rdma_request_reset(struct ice_pf *pf, enum iidc_reset_type reset_type);
int ice_rdma_update_vsi_filter(struct ice_pf *pf, u16 vsi_id, bool enable);
void ice_get_qos_params(struct ice_pf *pf, struct iidc_qos_params *qos);
-#define IIDC_RDMA_ROCE_NAME "roce"
-
/* Structure representing auxiliary driver tailored information about the core
* PCI dev, each auxiliary driver using the IIDC interface will have an
* instance of this struct dedicated to it.
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index be5cb3360b94..65117f01d5f2 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -592,7 +592,7 @@ struct netdev_queue {
* Number of TX timeouts for this queue
* (/sys/class/net/DEV/Q/trans_timeout)
*/
- unsigned long trans_timeout;
+ atomic_long_t trans_timeout;
/* Subordinate device that the queue has been assigned to */
struct net_device *sb_dev;
@@ -1297,11 +1297,6 @@ struct netdev_net_notifier {
* TX queue.
* int (*ndo_get_iflink)(const struct net_device *dev);
* Called to get the iflink value of this device.
- * void (*ndo_change_proto_down)(struct net_device *dev,
- * bool proto_down);
- * This function is used to pass protocol port error state information
- * to the switch driver. The switch driver can react to the proto_down
- * by doing a phys down on the associated switch port.
* int (*ndo_fill_metadata_dst)(struct net_device *dev, struct sk_buff *skb);
* This function is used to get egress tunnel information for given skb.
* This is useful for retrieving outer tunnel header parameters while
@@ -1542,8 +1537,6 @@ struct net_device_ops {
int queue_index,
u32 maxrate);
int (*ndo_get_iflink)(const struct net_device *dev);
- int (*ndo_change_proto_down)(struct net_device *dev,
- bool proto_down);
int (*ndo_fill_metadata_dst)(struct net_device *dev,
struct sk_buff *skb);
void (*ndo_set_rx_headroom)(struct net_device *dev,
@@ -1612,6 +1605,7 @@ struct net_device_ops {
* @IFF_LIVE_RENAME_OK: rename is allowed while device is up and running
* @IFF_TX_SKB_NO_LINEAR: device/driver is capable of xmitting frames with
* skb_headlen(skb) == 0 (data starts from frag0)
+ * @IFF_CHANGE_PROTO_DOWN: device supports setting carrier via IFLA_PROTO_DOWN
*/
enum netdev_priv_flags {
IFF_802_1Q_VLAN = 1<<0,
@@ -1646,6 +1640,7 @@ enum netdev_priv_flags {
IFF_L3MDEV_RX_HANDLER = 1<<29,
IFF_LIVE_RENAME_OK = 1<<30,
IFF_TX_SKB_NO_LINEAR = 1<<31,
+ IFF_CHANGE_PROTO_DOWN = BIT_ULL(32),
};
#define IFF_802_1Q_VLAN IFF_802_1Q_VLAN
@@ -1942,6 +1937,8 @@ enum netdev_ml_priv_type {
* @unlink_list: As netif_addr_lock() can be called recursively,
* keep a list of interfaces to be deleted.
*
+ * @dev_addr_shadow: Copy of @dev_addr to catch direct writes.
+ *
* FIXME: cleanup struct net_device such that network protocol info
* moves out.
*/
@@ -1980,7 +1977,7 @@ struct net_device {
/* Read-mostly cache-line for fast-path access */
unsigned int flags;
- unsigned int priv_flags;
+ unsigned long long priv_flags;
const struct net_device_ops *netdev_ops;
int ifindex;
unsigned short gflags;
@@ -2117,7 +2114,7 @@ struct net_device {
* Cache lines mostly used on receive path (including eth_type_trans())
*/
/* Interface address info used in eth_type_trans() */
- unsigned char *dev_addr;
+ const unsigned char *dev_addr;
struct netdev_rx_queue *_rx;
unsigned int num_rx_queues;
@@ -2268,6 +2265,8 @@ struct net_device {
/* protected by rtnl_lock */
struct bpf_xdp_entity xdp_state[__MAX_XDP_MODE];
+
+ u8 dev_addr_shadow[MAX_ADDR_LEN];
};
#define to_net_dev(d) container_of(d, struct net_device, dev)
@@ -2520,109 +2519,6 @@ static inline void netif_napi_del(struct napi_struct *napi)
synchronize_net();
}
-struct napi_gro_cb {
- /* Virtual address of skb_shinfo(skb)->frags[0].page + offset. */
- void *frag0;
-
- /* Length of frag0. */
- unsigned int frag0_len;
-
- /* This indicates where we are processing relative to skb->data. */
- int data_offset;
-
- /* This is non-zero if the packet cannot be merged with the new skb. */
- u16 flush;
-
- /* Save the IP ID here and check when we get to the transport layer */
- u16 flush_id;
-
- /* Number of segments aggregated. */
- u16 count;
-
- /* Start offset for remote checksum offload */
- u16 gro_remcsum_start;
-
- /* jiffies when first packet was created/queued */
- unsigned long age;
-
- /* Used in ipv6_gro_receive() and foo-over-udp */
- u16 proto;
-
- /* This is non-zero if the packet may be of the same flow. */
- u8 same_flow:1;
-
- /* Used in tunnel GRO receive */
- u8 encap_mark:1;
-
- /* GRO checksum is valid */
- u8 csum_valid:1;
-
- /* Number of checksums via CHECKSUM_UNNECESSARY */
- u8 csum_cnt:3;
-
- /* Free the skb? */
- u8 free:2;
-#define NAPI_GRO_FREE 1
-#define NAPI_GRO_FREE_STOLEN_HEAD 2
-
- /* Used in foo-over-udp, set in udp[46]_gro_receive */
- u8 is_ipv6:1;
-
- /* Used in GRE, set in fou/gue_gro_receive */
- u8 is_fou:1;
-
- /* Used to determine if flush_id can be ignored */
- u8 is_atomic:1;
-
- /* Number of gro_receive callbacks this packet already went through */
- u8 recursion_counter:4;
-
- /* GRO is done by frag_list pointer chaining. */
- u8 is_flist:1;
-
- /* used to support CHECKSUM_COMPLETE for tunneling protocols */
- __wsum csum;
-
- /* used in skb_gro_receive() slow path */
- struct sk_buff *last;
-};
-
-#define NAPI_GRO_CB(skb) ((struct napi_gro_cb *)(skb)->cb)
-
-#define GRO_RECURSION_LIMIT 15
-static inline int gro_recursion_inc_test(struct sk_buff *skb)
-{
- return ++NAPI_GRO_CB(skb)->recursion_counter == GRO_RECURSION_LIMIT;
-}
-
-typedef struct sk_buff *(*gro_receive_t)(struct list_head *, struct sk_buff *);
-static inline struct sk_buff *call_gro_receive(gro_receive_t cb,
- struct list_head *head,
- struct sk_buff *skb)
-{
- if (unlikely(gro_recursion_inc_test(skb))) {
- NAPI_GRO_CB(skb)->flush |= 1;
- return NULL;
- }
-
- return cb(head, skb);
-}
-
-typedef struct sk_buff *(*gro_receive_sk_t)(struct sock *, struct list_head *,
- struct sk_buff *);
-static inline struct sk_buff *call_gro_receive_sk(gro_receive_sk_t cb,
- struct sock *sk,
- struct list_head *head,
- struct sk_buff *skb)
-{
- if (unlikely(gro_recursion_inc_test(skb))) {
- NAPI_GRO_CB(skb)->flush |= 1;
- return NULL;
- }
-
- return cb(sk, head, skb);
-}
-
struct packet_type {
__be16 type; /* This is really htons(ether_type). */
bool ignore_outgoing;
@@ -3005,254 +2901,7 @@ struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex);
struct net_device *dev_get_by_napi_id(unsigned int napi_id);
int netdev_get_name(struct net *net, char *name, int ifindex);
int dev_restart(struct net_device *dev);
-int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb);
-int skb_gro_receive_list(struct sk_buff *p, struct sk_buff *skb);
-
-static inline unsigned int skb_gro_offset(const struct sk_buff *skb)
-{
- return NAPI_GRO_CB(skb)->data_offset;
-}
-
-static inline unsigned int skb_gro_len(const struct sk_buff *skb)
-{
- return skb->len - NAPI_GRO_CB(skb)->data_offset;
-}
-
-static inline void skb_gro_pull(struct sk_buff *skb, unsigned int len)
-{
- NAPI_GRO_CB(skb)->data_offset += len;
-}
-
-static inline void *skb_gro_header_fast(struct sk_buff *skb,
- unsigned int offset)
-{
- return NAPI_GRO_CB(skb)->frag0 + offset;
-}
-
-static inline int skb_gro_header_hard(struct sk_buff *skb, unsigned int hlen)
-{
- return NAPI_GRO_CB(skb)->frag0_len < hlen;
-}
-
-static inline void skb_gro_frag0_invalidate(struct sk_buff *skb)
-{
- NAPI_GRO_CB(skb)->frag0 = NULL;
- NAPI_GRO_CB(skb)->frag0_len = 0;
-}
-
-static inline void *skb_gro_header_slow(struct sk_buff *skb, unsigned int hlen,
- unsigned int offset)
-{
- if (!pskb_may_pull(skb, hlen))
- return NULL;
-
- skb_gro_frag0_invalidate(skb);
- return skb->data + offset;
-}
-
-static inline void *skb_gro_network_header(struct sk_buff *skb)
-{
- return (NAPI_GRO_CB(skb)->frag0 ?: skb->data) +
- skb_network_offset(skb);
-}
-static inline void skb_gro_postpull_rcsum(struct sk_buff *skb,
- const void *start, unsigned int len)
-{
- if (NAPI_GRO_CB(skb)->csum_valid)
- NAPI_GRO_CB(skb)->csum = csum_sub(NAPI_GRO_CB(skb)->csum,
- csum_partial(start, len, 0));
-}
-
-/* GRO checksum functions. These are logical equivalents of the normal
- * checksum functions (in skbuff.h) except that they operate on the GRO
- * offsets and fields in sk_buff.
- */
-
-__sum16 __skb_gro_checksum_complete(struct sk_buff *skb);
-
-static inline bool skb_at_gro_remcsum_start(struct sk_buff *skb)
-{
- return (NAPI_GRO_CB(skb)->gro_remcsum_start == skb_gro_offset(skb));
-}
-
-static inline bool __skb_gro_checksum_validate_needed(struct sk_buff *skb,
- bool zero_okay,
- __sum16 check)
-{
- return ((skb->ip_summed != CHECKSUM_PARTIAL ||
- skb_checksum_start_offset(skb) <
- skb_gro_offset(skb)) &&
- !skb_at_gro_remcsum_start(skb) &&
- NAPI_GRO_CB(skb)->csum_cnt == 0 &&
- (!zero_okay || check));
-}
-
-static inline __sum16 __skb_gro_checksum_validate_complete(struct sk_buff *skb,
- __wsum psum)
-{
- if (NAPI_GRO_CB(skb)->csum_valid &&
- !csum_fold(csum_add(psum, NAPI_GRO_CB(skb)->csum)))
- return 0;
-
- NAPI_GRO_CB(skb)->csum = psum;
-
- return __skb_gro_checksum_complete(skb);
-}
-
-static inline void skb_gro_incr_csum_unnecessary(struct sk_buff *skb)
-{
- if (NAPI_GRO_CB(skb)->csum_cnt > 0) {
- /* Consume a checksum from CHECKSUM_UNNECESSARY */
- NAPI_GRO_CB(skb)->csum_cnt--;
- } else {
- /* Update skb for CHECKSUM_UNNECESSARY and csum_level when we
- * verified a new top level checksum or an encapsulated one
- * during GRO. This saves work if we fallback to normal path.
- */
- __skb_incr_checksum_unnecessary(skb);
- }
-}
-
-#define __skb_gro_checksum_validate(skb, proto, zero_okay, check, \
- compute_pseudo) \
-({ \
- __sum16 __ret = 0; \
- if (__skb_gro_checksum_validate_needed(skb, zero_okay, check)) \
- __ret = __skb_gro_checksum_validate_complete(skb, \
- compute_pseudo(skb, proto)); \
- if (!__ret) \
- skb_gro_incr_csum_unnecessary(skb); \
- __ret; \
-})
-
-#define skb_gro_checksum_validate(skb, proto, compute_pseudo) \
- __skb_gro_checksum_validate(skb, proto, false, 0, compute_pseudo)
-
-#define skb_gro_checksum_validate_zero_check(skb, proto, check, \
- compute_pseudo) \
- __skb_gro_checksum_validate(skb, proto, true, check, compute_pseudo)
-
-#define skb_gro_checksum_simple_validate(skb) \
- __skb_gro_checksum_validate(skb, 0, false, 0, null_compute_pseudo)
-
-static inline bool __skb_gro_checksum_convert_check(struct sk_buff *skb)
-{
- return (NAPI_GRO_CB(skb)->csum_cnt == 0 &&
- !NAPI_GRO_CB(skb)->csum_valid);
-}
-
-static inline void __skb_gro_checksum_convert(struct sk_buff *skb,
- __wsum pseudo)
-{
- NAPI_GRO_CB(skb)->csum = ~pseudo;
- NAPI_GRO_CB(skb)->csum_valid = 1;
-}
-
-#define skb_gro_checksum_try_convert(skb, proto, compute_pseudo) \
-do { \
- if (__skb_gro_checksum_convert_check(skb)) \
- __skb_gro_checksum_convert(skb, \
- compute_pseudo(skb, proto)); \
-} while (0)
-
-struct gro_remcsum {
- int offset;
- __wsum delta;
-};
-
-static inline void skb_gro_remcsum_init(struct gro_remcsum *grc)
-{
- grc->offset = 0;
- grc->delta = 0;
-}
-
-static inline void *skb_gro_remcsum_process(struct sk_buff *skb, void *ptr,
- unsigned int off, size_t hdrlen,
- int start, int offset,
- struct gro_remcsum *grc,
- bool nopartial)
-{
- __wsum delta;
- size_t plen = hdrlen + max_t(size_t, offset + sizeof(u16), start);
-
- BUG_ON(!NAPI_GRO_CB(skb)->csum_valid);
-
- if (!nopartial) {
- NAPI_GRO_CB(skb)->gro_remcsum_start = off + hdrlen + start;
- return ptr;
- }
-
- ptr = skb_gro_header_fast(skb, off);
- if (skb_gro_header_hard(skb, off + plen)) {
- ptr = skb_gro_header_slow(skb, off + plen, off);
- if (!ptr)
- return NULL;
- }
-
- delta = remcsum_adjust(ptr + hdrlen, NAPI_GRO_CB(skb)->csum,
- start, offset);
-
- /* Adjust skb->csum since we changed the packet */
- NAPI_GRO_CB(skb)->csum = csum_add(NAPI_GRO_CB(skb)->csum, delta);
-
- grc->offset = off + hdrlen + offset;
- grc->delta = delta;
-
- return ptr;
-}
-
-static inline void skb_gro_remcsum_cleanup(struct sk_buff *skb,
- struct gro_remcsum *grc)
-{
- void *ptr;
- size_t plen = grc->offset + sizeof(u16);
-
- if (!grc->delta)
- return;
-
- ptr = skb_gro_header_fast(skb, grc->offset);
- if (skb_gro_header_hard(skb, grc->offset + sizeof(u16))) {
- ptr = skb_gro_header_slow(skb, plen, grc->offset);
- if (!ptr)
- return;
- }
-
- remcsum_unadjust((__sum16 *)ptr, grc->delta);
-}
-
-#ifdef CONFIG_XFRM_OFFLOAD
-static inline void skb_gro_flush_final(struct sk_buff *skb, struct sk_buff *pp, int flush)
-{
- if (PTR_ERR(pp) != -EINPROGRESS)
- NAPI_GRO_CB(skb)->flush |= flush;
-}
-static inline void skb_gro_flush_final_remcsum(struct sk_buff *skb,
- struct sk_buff *pp,
- int flush,
- struct gro_remcsum *grc)
-{
- if (PTR_ERR(pp) != -EINPROGRESS) {
- NAPI_GRO_CB(skb)->flush |= flush;
- skb_gro_remcsum_cleanup(skb, grc);
- skb->remcsum_offload = 0;
- }
-}
-#else
-static inline void skb_gro_flush_final(struct sk_buff *skb, struct sk_buff *pp, int flush)
-{
- NAPI_GRO_CB(skb)->flush |= flush;
-}
-static inline void skb_gro_flush_final_remcsum(struct sk_buff *skb,
- struct sk_buff *pp,
- int flush,
- struct gro_remcsum *grc)
-{
- NAPI_GRO_CB(skb)->flush |= flush;
- skb_gro_remcsum_cleanup(skb, grc);
- skb->remcsum_offload = 0;
-}
-#endif
static inline int dev_hard_header(struct sk_buff *skb, struct net_device *dev,
unsigned short type,
@@ -4007,6 +3656,7 @@ int netif_rx_ni(struct sk_buff *skb);
int netif_rx_any_context(struct sk_buff *skb);
int netif_receive_skb(struct sk_buff *skb);
int netif_receive_skb_core(struct sk_buff *skb);
+void netif_receive_skb_list_internal(struct list_head *head);
void netif_receive_skb_list(struct list_head *head);
gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb);
void napi_gro_flush(struct napi_struct *napi, bool flush_old);
@@ -4080,7 +3730,6 @@ int dev_get_port_parent_id(struct net_device *dev,
struct netdev_phys_item_id *ppid, bool recurse);
bool netdev_port_same_parent_id(struct net_device *a, struct net_device *b);
int dev_change_proto_down(struct net_device *dev, bool proto_down);
-int dev_change_proto_down_generic(struct net_device *dev, bool proto_down);
void dev_change_proto_down_reason(struct net_device *dev, unsigned long mask,
u32 value);
struct sk_buff *validate_xmit_skb_list(struct sk_buff *skb, struct net_device *dev, bool *again);
@@ -4451,10 +4100,21 @@ static inline void __netif_tx_unlock_bh(struct netdev_queue *txq)
spin_unlock_bh(&txq->_xmit_lock);
}
+/*
+ * txq->trans_start can be read locklessly from dev_watchdog()
+ */
static inline void txq_trans_update(struct netdev_queue *txq)
{
if (txq->xmit_lock_owner != -1)
- txq->trans_start = jiffies;
+ WRITE_ONCE(txq->trans_start, jiffies);
+}
+
+static inline void txq_trans_cond_update(struct netdev_queue *txq)
+{
+ unsigned long now = jiffies;
+
+ if (READ_ONCE(txq->trans_start) != now)
+ WRITE_ONCE(txq->trans_start, now);
}
/* legacy drivers only, netdev_start_xmit() sets txq->trans_start */
@@ -4462,8 +4122,7 @@ static inline void netif_trans_update(struct net_device *dev)
{
struct netdev_queue *txq = netdev_get_tx_queue(dev, 0);
- if (txq->trans_start != jiffies)
- txq->trans_start = jiffies;
+ txq_trans_cond_update(txq);
}
/**
@@ -4472,27 +4131,7 @@ static inline void netif_trans_update(struct net_device *dev)
*
* Get network device transmit lock
*/
-static inline void netif_tx_lock(struct net_device *dev)
-{
- unsigned int i;
- int cpu;
-
- spin_lock(&dev->tx_global_lock);
- cpu = smp_processor_id();
- for (i = 0; i < dev->num_tx_queues; i++) {
- struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
-
- /* We are the only thread of execution doing a
- * freeze, but we have to grab the _xmit_lock in
- * order to synchronize with threads which are in
- * the ->hard_start_xmit() handler and already
- * checked the frozen bit.
- */
- __netif_tx_lock(txq, cpu);
- set_bit(__QUEUE_STATE_FROZEN, &txq->state);
- __netif_tx_unlock(txq);
- }
-}
+void netif_tx_lock(struct net_device *dev);
static inline void netif_tx_lock_bh(struct net_device *dev)
{
@@ -4500,22 +4139,7 @@ static inline void netif_tx_lock_bh(struct net_device *dev)
netif_tx_lock(dev);
}
-static inline void netif_tx_unlock(struct net_device *dev)
-{
- unsigned int i;
-
- for (i = 0; i < dev->num_tx_queues; i++) {
- struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
-
- /* No need to grab the _xmit_lock here. If the
- * queue is not stopped for another reason, we
- * force a schedule.
- */
- clear_bit(__QUEUE_STATE_FROZEN, &txq->state);
- netif_schedule_queue(txq);
- }
- spin_unlock(&dev->tx_global_lock);
-}
+void netif_tx_unlock(struct net_device *dev);
static inline void netif_tx_unlock_bh(struct net_device *dev)
{
@@ -4649,10 +4273,13 @@ void __hw_addr_unsync_dev(struct netdev_hw_addr_list *list,
void __hw_addr_init(struct netdev_hw_addr_list *list);
/* Functions used for device addresses handling */
+void dev_addr_mod(struct net_device *dev, unsigned int offset,
+ const void *addr, size_t len);
+
static inline void
__dev_addr_set(struct net_device *dev, const void *addr, size_t len)
{
- memcpy(dev->dev_addr, addr, len);
+ dev_addr_mod(dev, 0, addr, len);
}
static inline void dev_addr_set(struct net_device *dev, const u8 *addr)
@@ -4660,19 +4287,13 @@ static inline void dev_addr_set(struct net_device *dev, const u8 *addr)
__dev_addr_set(dev, addr, dev->addr_len);
}
-static inline void
-dev_addr_mod(struct net_device *dev, unsigned int offset,
- const void *addr, size_t len)
-{
- memcpy(&dev->dev_addr[offset], addr, len);
-}
-
int dev_addr_add(struct net_device *dev, const unsigned char *addr,
unsigned char addr_type);
int dev_addr_del(struct net_device *dev, const unsigned char *addr,
unsigned char addr_type);
void dev_addr_flush(struct net_device *dev);
int dev_addr_init(struct net_device *dev);
+void dev_addr_check(struct net_device *dev);
/* Functions used for unicast addresses handling */
int dev_uc_add(struct net_device *dev, const unsigned char *addr);
@@ -5111,7 +4732,15 @@ static inline bool netif_needs_gso(struct sk_buff *skb,
static inline void netif_set_gso_max_size(struct net_device *dev,
unsigned int size)
{
- dev->gso_max_size = size;
+ /* dev->gso_max_size is read locklessly from sk_setup_caps() */
+ WRITE_ONCE(dev->gso_max_size, size);
+}
+
+static inline void netif_set_gso_max_segs(struct net_device *dev,
+ unsigned int segs)
+{
+ /* dev->gso_max_segs is read locklessly from sk_setup_caps() */
+ WRITE_ONCE(dev->gso_max_segs, segs);
}
static inline void skb_gso_error_unwind(struct sk_buff *skb, __be16 protocol,
@@ -5298,7 +4927,7 @@ void netdev_info(const struct net_device *dev, const char *format, ...);
#define netdev_level_once(level, dev, fmt, ...) \
do { \
- static bool __print_once __read_mostly; \
+ static bool __section(".data.once") __print_once; \
\
if (!__print_once) { \
__print_once = true; \
diff --git a/include/linux/once.h b/include/linux/once.h
index d361fb14ac3a..f54523052bbc 100644
--- a/include/linux/once.h
+++ b/include/linux/once.h
@@ -38,7 +38,7 @@ void __do_once_done(bool *done, struct static_key_true *once_key,
#define DO_ONCE(func, ...) \
({ \
bool ___ret = false; \
- static bool ___done = false; \
+ static bool __section(".data.once") ___done = false; \
static DEFINE_STATIC_KEY_TRUE(___once_key); \
if (static_branch_unlikely(&___once_key)) { \
unsigned long ___flags; \
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 96e43fbb2dd8..1e57cdd95da3 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -99,7 +99,7 @@ extern const int phy_10gbit_features_array[1];
* @PHY_INTERFACE_MODE_RGMII_RXID: RGMII with Internal RX delay
* @PHY_INTERFACE_MODE_RGMII_TXID: RGMII with Internal RX delay
* @PHY_INTERFACE_MODE_RTBI: Reduced TBI
- * @PHY_INTERFACE_MODE_SMII: ??? MII
+ * @PHY_INTERFACE_MODE_SMII: Serial MII
* @PHY_INTERFACE_MODE_XGMII: 10 gigabit media-independent interface
* @PHY_INTERFACE_MODE_XLGMII:40 gigabit media-independent interface
* @PHY_INTERFACE_MODE_MOCA: Multimedia over Coax
diff --git a/include/linux/phylink.h b/include/linux/phylink.h
index f037470b6fb3..01224235df0f 100644
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -20,6 +20,29 @@ enum {
MLO_AN_PHY = 0, /* Conventional PHY */
MLO_AN_FIXED, /* Fixed-link mode */
MLO_AN_INBAND, /* In-band protocol */
+
+ MAC_SYM_PAUSE = BIT(0),
+ MAC_ASYM_PAUSE = BIT(1),
+ MAC_10HD = BIT(2),
+ MAC_10FD = BIT(3),
+ MAC_10 = MAC_10HD | MAC_10FD,
+ MAC_100HD = BIT(4),
+ MAC_100FD = BIT(5),
+ MAC_100 = MAC_100HD | MAC_100FD,
+ MAC_1000HD = BIT(6),
+ MAC_1000FD = BIT(7),
+ MAC_1000 = MAC_1000HD | MAC_1000FD,
+ MAC_2500FD = BIT(8),
+ MAC_5000FD = BIT(9),
+ MAC_10000FD = BIT(10),
+ MAC_20000FD = BIT(11),
+ MAC_25000FD = BIT(12),
+ MAC_40000FD = BIT(13),
+ MAC_50000FD = BIT(14),
+ MAC_56000FD = BIT(15),
+ MAC_100000FD = BIT(16),
+ MAC_200000FD = BIT(17),
+ MAC_400000FD = BIT(18),
};
static inline bool phylink_autoneg_inband(unsigned int mode)
@@ -69,6 +92,7 @@ enum phylink_op_type {
* if MAC link is at %MLO_AN_FIXED mode.
* @supported_interfaces: bitmap describing which PHY_INTERFACE_MODE_xxx
* are supported by the MAC/PCS.
+ * @mac_capabilities: MAC pause/speed/duplex capabilities.
*/
struct phylink_config {
struct device *dev;
@@ -79,6 +103,7 @@ struct phylink_config {
void (*get_fixed_state)(struct phylink_config *config,
struct phylink_link_state *state);
DECLARE_PHY_INTERFACE_MASK(supported_interfaces);
+ unsigned long mac_capabilities;
};
/**
@@ -442,6 +467,12 @@ void pcs_link_up(struct phylink_pcs *pcs, unsigned int mode,
phy_interface_t interface, int speed, int duplex);
#endif
+void phylink_get_linkmodes(unsigned long *linkmodes, phy_interface_t interface,
+ unsigned long mac_capabilities);
+void phylink_generic_validate(struct phylink_config *config,
+ unsigned long *supported,
+ struct phylink_link_state *state);
+
struct phylink *phylink_create(struct phylink_config *, struct fwnode_handle *,
phy_interface_t iface,
const struct phylink_mac_ops *mac_ops);
@@ -496,11 +527,12 @@ void phylink_set_port_modes(unsigned long *bits);
void phylink_set_10g_modes(unsigned long *mask);
void phylink_helper_basex_speed(struct phylink_link_state *state);
+void phylink_mii_c22_pcs_decode_state(struct phylink_link_state *state,
+ u16 bmsr, u16 lpa);
void phylink_mii_c22_pcs_get_state(struct mdio_device *pcs,
struct phylink_link_state *state);
-int phylink_mii_c22_pcs_set_advertisement(struct mdio_device *pcs,
- phy_interface_t interface,
- const unsigned long *advertising);
+int phylink_mii_c22_pcs_encode_advertisement(phy_interface_t interface,
+ const unsigned long *advertising);
int phylink_mii_c22_pcs_config(struct mdio_device *pcs, unsigned int mode,
phy_interface_t interface,
const unsigned long *advertising);
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index e3c9a25a853a..22652e5fbc38 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -290,6 +290,11 @@ typedef void (*regmap_unlock)(void *);
* read operation on a bus such as SPI, I2C, etc. Most of the
* devices do not need this.
* @reg_write: Same as above for writing.
+ * @reg_update_bits: Optional callback that if filled will be used to perform
+ * all the update_bits(rmw) operation. Should only be provided
+ * if the function require special handling with lock and reg
+ * handling and the operation cannot be represented as a simple
+ * update_bits operation on a bus such as SPI, I2C, etc.
* @fast_io: Register IO is fast. Use a spinlock instead of a mutex
* to perform locking. This field is ignored if custom lock/unlock
* functions are used (see fields lock/unlock of struct regmap_config).
@@ -372,6 +377,8 @@ struct regmap_config {
int (*reg_read)(void *context, unsigned int reg, unsigned int *val);
int (*reg_write)(void *context, unsigned int reg, unsigned int val);
+ int (*reg_update_bits)(void *context, unsigned int reg,
+ unsigned int mask, unsigned int val);
bool fast_io;
diff --git a/include/linux/siphash.h b/include/linux/siphash.h
index 0cda61855d90..cce8a9acc76c 100644
--- a/include/linux/siphash.h
+++ b/include/linux/siphash.h
@@ -21,6 +21,8 @@ typedef struct {
u64 key[2];
} siphash_key_t;
+#define siphash_aligned_key_t siphash_key_t __aligned(16)
+
static inline bool siphash_key_is_zero(const siphash_key_t *key)
{
return !(key->key[0] | key->key[1]);
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index c8cb7e697d47..eae4bd3237a4 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -36,6 +36,7 @@
#include <linux/splice.h>
#include <linux/in6.h>
#include <linux/if_packet.h>
+#include <linux/llist.h>
#include <net/flow.h>
#include <net/page_pool.h>
#if IS_ENABLED(CONFIG_NF_CONNTRACK)
@@ -626,6 +627,7 @@ typedef unsigned char *sk_buff_data_t;
* for retransmit timer
* @rbnode: RB tree node, alternative to next/prev for netem/tcp
* @list: queue head
+ * @ll_node: anchor in an llist (eg socket defer_list)
* @sk: Socket we are owned by
* @ip_defrag_offset: (aka @sk) alternate use of @sk, used in
* fragmentation management
@@ -743,6 +745,7 @@ struct sk_buff {
};
struct rb_node rbnode; /* used in netem, ip4 defrag, and tcp stack */
struct list_head list;
+ struct llist_node ll_node;
};
union {
@@ -792,7 +795,7 @@ struct sk_buff {
#else
#define CLONED_MASK 1
#endif
-#define CLONED_OFFSET() offsetof(struct sk_buff, __cloned_offset)
+#define CLONED_OFFSET offsetof(struct sk_buff, __cloned_offset)
/* private: */
__u8 __cloned_offset[0];
@@ -808,25 +811,15 @@ struct sk_buff {
__u8 active_extensions;
#endif
- /* fields enclosed in headers_start/headers_end are copied
+ /* Fields enclosed in headers group are copied
* using a single memcpy() in __copy_skb_header()
*/
- /* private: */
- __u32 headers_start[0];
- /* public: */
-
-/* if you move pkt_type around you also must adapt those constants */
-#ifdef __BIG_ENDIAN_BITFIELD
-#define PKT_TYPE_MAX (7 << 5)
-#else
-#define PKT_TYPE_MAX 7
-#endif
-#define PKT_TYPE_OFFSET() offsetof(struct sk_buff, __pkt_type_offset)
+ struct_group(headers,
/* private: */
__u8 __pkt_type_offset[0];
/* public: */
- __u8 pkt_type:3;
+ __u8 pkt_type:3; /* see PKT_TYPE_MAX */
__u8 ignore_df:1;
__u8 nf_trace:1;
__u8 ip_summed:2;
@@ -842,16 +835,10 @@ struct sk_buff {
__u8 encap_hdr_csum:1;
__u8 csum_valid:1;
-#ifdef __BIG_ENDIAN_BITFIELD
-#define PKT_VLAN_PRESENT_BIT 7
-#else
-#define PKT_VLAN_PRESENT_BIT 0
-#endif
-#define PKT_VLAN_PRESENT_OFFSET() offsetof(struct sk_buff, __pkt_vlan_present_offset)
/* private: */
__u8 __pkt_vlan_present_offset[0];
/* public: */
- __u8 vlan_present:1;
+ __u8 vlan_present:1; /* See PKT_VLAN_PRESENT_BIT */
__u8 csum_complete_sw:1;
__u8 csum_level:2;
__u8 csum_not_inet:1;
@@ -932,9 +919,7 @@ struct sk_buff {
u64 kcov_handle;
#endif
- /* private: */
- __u32 headers_end[0];
- /* public: */
+ ); /* end headers group */
/* These elements must be at the end, see alloc_skb() for details. */
sk_buff_data_t tail;
@@ -950,6 +935,22 @@ struct sk_buff {
#endif
};
+/* if you move pkt_type around you also must adapt those constants */
+#ifdef __BIG_ENDIAN_BITFIELD
+#define PKT_TYPE_MAX (7 << 5)
+#else
+#define PKT_TYPE_MAX 7
+#endif
+#define PKT_TYPE_OFFSET offsetof(struct sk_buff, __pkt_type_offset)
+
+/* if you move pkt_vlan_present around you also must adapt these constants */
+#ifdef __BIG_ENDIAN_BITFIELD
+#define PKT_VLAN_PRESENT_BIT 7
+#else
+#define PKT_VLAN_PRESENT_BIT 0
+#endif
+#define PKT_VLAN_PRESENT_OFFSET offsetof(struct sk_buff, __pkt_vlan_present_offset)
+
#ifdef __KERNEL__
/*
* Handling routines are only of interest to the kernel
@@ -3484,7 +3485,11 @@ __skb_postpull_rcsum(struct sk_buff *skb, const void *start, unsigned int len,
static inline void skb_postpull_rcsum(struct sk_buff *skb,
const void *start, unsigned int len)
{
- __skb_postpull_rcsum(skb, start, len, 0);
+ if (skb->ip_summed == CHECKSUM_COMPLETE)
+ skb->csum = ~csum_partial(start, len, ~skb->csum);
+ else if (skb->ip_summed == CHECKSUM_PARTIAL &&
+ skb_checksum_start_offset(skb) < 0)
+ skb->ip_summed = CHECKSUM_NONE;
}
static __always_inline void
diff --git a/include/linux/skmsg.h b/include/linux/skmsg.h
index 584d94be9c8b..18a717fe62eb 100644
--- a/include/linux/skmsg.h
+++ b/include/linux/skmsg.h
@@ -507,12 +507,6 @@ static inline bool sk_psock_strp_enabled(struct sk_psock *psock)
return !!psock->saved_data_ready;
}
-static inline bool sk_is_tcp(const struct sock *sk)
-{
- return sk->sk_type == SOCK_STREAM &&
- sk->sk_protocol == IPPROTO_TCP;
-}
-
static inline bool sk_is_udp(const struct sock *sk)
{
return sk->sk_type == SOCK_DGRAM &&
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index a6f03b36fc4f..24eea1b05ca2 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -233,6 +233,7 @@ struct plat_stmmacenet_data {
int (*clks_config)(void *priv, bool enabled);
int (*crosststamp)(ktime_t *device, struct system_counterval_t *system,
void *ctx);
+ void (*dump_debug_regs)(void *priv);
void *bsp_priv;
struct clk *stmmac_clk;
struct clk *pclk;
@@ -241,6 +242,7 @@ struct plat_stmmacenet_data {
unsigned int clk_ref_rate;
unsigned int mult_fact_100ns;
s32 ptp_max_adj;
+ u32 cdc_error_adj;
struct reset_control *stmmac_rst;
struct reset_control *stmmac_ahb_rst;
struct stmmac_axi *axi;
diff --git a/include/linux/wwan.h b/include/linux/wwan.h
index 9fac819f92e3..1646aa3e6779 100644
--- a/include/linux/wwan.h
+++ b/include/linux/wwan.h
@@ -171,4 +171,6 @@ int wwan_register_ops(struct device *parent, const struct wwan_ops *ops,
void wwan_unregister_ops(struct device *parent);
+struct dentry *wwan_get_debugfs_dir(struct device *parent);
+
#endif /* __WWAN_H */
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index 7d142e8a0550..a7ef624ed726 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -20,13 +20,12 @@ struct sock *unix_peer_get(struct sock *sk);
#define UNIX_HASH_BITS 8
extern unsigned int unix_tot_inflight;
-extern spinlock_t unix_table_lock;
+extern spinlock_t unix_table_locks[2 * UNIX_HASH_SIZE];
extern struct hlist_head unix_socket_table[2 * UNIX_HASH_SIZE];
struct unix_address {
refcount_t refcnt;
int len;
- unsigned int hash;
struct sockaddr_un name[];
};
diff --git a/include/net/arp.h b/include/net/arp.h
index 4950191f6b2b..031374ac2f22 100644
--- a/include/net/arp.h
+++ b/include/net/arp.h
@@ -53,13 +53,7 @@ static inline void __ipv4_confirm_neigh(struct net_device *dev, u32 key)
rcu_read_lock_bh();
n = __ipv4_neigh_lookup_noref(dev, key);
- if (n) {
- unsigned long now = jiffies;
-
- /* avoid dirtying neighbour */
- if (READ_ONCE(n->confirmed) != now)
- WRITE_ONCE(n->confirmed, now);
- }
+ neigh_confirm(n);
rcu_read_unlock_bh();
}
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 3271870fd85e..2f31e571f34c 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -380,6 +380,7 @@ typedef void (*hci_req_complete_skb_t)(struct hci_dev *hdev, u8 status,
#define HCI_REQ_SKB BIT(1)
struct hci_ctrl {
+ struct sock *sk;
u16 opcode;
u8 req_flags;
u8 req_event;
@@ -405,6 +406,7 @@ struct bt_skb_cb {
#define hci_skb_pkt_type(skb) bt_cb((skb))->pkt_type
#define hci_skb_expect(skb) bt_cb((skb))->expect
#define hci_skb_opcode(skb) bt_cb((skb))->hci.opcode
+#define hci_skb_sk(skb) bt_cb((skb))->hci.sk
static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
{
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 63065bc01b76..84db6b275231 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -566,6 +566,7 @@ enum {
#define HCI_ERROR_INVALID_LL_PARAMS 0x1e
#define HCI_ERROR_UNSPECIFIED 0x1f
#define HCI_ERROR_ADVERTISING_TIMEOUT 0x3c
+#define HCI_ERROR_CANCELLED_BY_HOST 0x44
/* Flow control modes */
#define HCI_FLOW_CTL_MODE_PACKET_BASED 0x00
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index dd8840e70e25..2560cfe80db8 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -30,6 +30,7 @@
#include <linux/rculist.h>
#include <net/bluetooth/hci.h>
+#include <net/bluetooth/hci_sync.h>
#include <net/bluetooth/hci_sock.h>
/* HCI priority */
@@ -475,6 +476,9 @@ struct hci_dev {
struct work_struct power_on;
struct delayed_work power_off;
struct work_struct error_reset;
+ struct work_struct cmd_sync_work;
+ struct list_head cmd_sync_work_list;
+ struct mutex cmd_sync_work_lock;
__u16 discov_timeout;
struct delayed_work discov_off;
@@ -489,10 +493,7 @@ struct hci_dev {
struct work_struct tx_work;
struct work_struct discov_update;
- struct work_struct bg_scan_update;
struct work_struct scan_update;
- struct work_struct connectable_update;
- struct work_struct discoverable_update;
struct delayed_work le_scan_disable;
struct delayed_work le_scan_restart;
@@ -519,7 +520,6 @@ struct hci_dev {
bool advertising_paused;
struct notifier_block suspend_notifier;
- struct work_struct suspend_prepare;
enum suspended_state suspend_state_next;
enum suspended_state suspend_state;
bool scanning_paused;
@@ -528,9 +528,6 @@ struct hci_dev {
bdaddr_t wake_addr;
u8 wake_addr_type;
- wait_queue_head_t suspend_wait_q;
- DECLARE_BITMAP(suspend_tasks, __SUSPEND_NUM_TASKS);
-
struct hci_conn_hash conn_hash;
struct list_head mgmt_pending;
@@ -603,6 +600,7 @@ struct hci_dev {
#if IS_ENABLED(CONFIG_BT_AOSPEXT)
bool aosp_capable;
+ bool aosp_quality_report;
#endif
int (*open)(struct hci_dev *hdev);
@@ -1461,8 +1459,11 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
#define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
+#define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
+
/* Use LL Privacy based address resolution if supported */
-#define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
+#define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
+ hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
/* Use enhanced synchronous connection if command is supported */
#define enhanced_sco_capable(dev) ((dev)->commands[29] & 0x08)
@@ -1690,10 +1691,6 @@ static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
int hci_register_cb(struct hci_cb *hcb);
int hci_unregister_cb(struct hci_cb *hcb);
-struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
- const void *param, u32 timeout);
-struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
- const void *param, u8 event, u32 timeout);
int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
const void *param);
@@ -1704,9 +1701,6 @@ void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
-struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
- const void *param, u32 timeout);
-
u32 hci_conn_get_phy(struct hci_conn *conn);
/* ----- HCI Sockets ----- */
@@ -1806,7 +1800,6 @@ int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
u8 entered);
void mgmt_auth_failed(struct hci_conn *conn, u8 status);
void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
-void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
u8 status);
void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
@@ -1831,8 +1824,6 @@ void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
u16 max_interval, u16 latency, u16 timeout);
void mgmt_smp_complete(struct hci_conn *conn, bool complete);
bool mgmt_get_connectable(struct hci_dev *hdev);
-void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
-void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
u8 instance);
diff --git a/include/net/bluetooth/hci_sync.h b/include/net/bluetooth/hci_sync.h
new file mode 100644
index 000000000000..0336c1bc5d25
--- /dev/null
+++ b/include/net/bluetooth/hci_sync.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2021 Intel Corporation
+ */
+
+typedef int (*hci_cmd_sync_work_func_t)(struct hci_dev *hdev, void *data);
+typedef void (*hci_cmd_sync_work_destroy_t)(struct hci_dev *hdev, void *data,
+ int err);
+
+struct hci_cmd_sync_work_entry {
+ struct list_head list;
+ hci_cmd_sync_work_func_t func;
+ void *data;
+ hci_cmd_sync_work_destroy_t destroy;
+};
+
+/* Function with sync suffix shall not be called with hdev->lock held as they
+ * wait the command to complete and in the meantime an event could be received
+ * which could attempt to acquire hdev->lock causing a deadlock.
+ */
+struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u32 timeout);
+struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u32 timeout);
+struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u8 event, u32 timeout);
+struct sk_buff *__hci_cmd_sync_sk(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u8 event, u32 timeout,
+ struct sock *sk);
+int __hci_cmd_sync_status(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u32 timeout);
+int __hci_cmd_sync_status_sk(struct hci_dev *hdev, u16 opcode, u32 plen,
+ const void *param, u8 event, u32 timeout,
+ struct sock *sk);
+
+void hci_cmd_sync_init(struct hci_dev *hdev);
+void hci_cmd_sync_clear(struct hci_dev *hdev);
+
+int hci_cmd_sync_queue(struct hci_dev *hdev, hci_cmd_sync_work_func_t func,
+ void *data, hci_cmd_sync_work_destroy_t destroy);
+
+int hci_update_eir_sync(struct hci_dev *hdev);
+int hci_update_class_sync(struct hci_dev *hdev);
+
+int hci_update_eir_sync(struct hci_dev *hdev);
+int hci_update_class_sync(struct hci_dev *hdev);
+int hci_update_name_sync(struct hci_dev *hdev);
+int hci_write_ssp_mode_sync(struct hci_dev *hdev, u8 mode);
+
+int hci_update_random_address_sync(struct hci_dev *hdev, bool require_privacy,
+ bool rpa, u8 *own_addr_type);
+
+int hci_update_scan_rsp_data_sync(struct hci_dev *hdev, u8 instance);
+int hci_update_adv_data_sync(struct hci_dev *hdev, u8 instance);
+int hci_schedule_adv_instance_sync(struct hci_dev *hdev, u8 instance,
+ bool force);
+
+int hci_setup_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance);
+int hci_start_ext_adv_sync(struct hci_dev *hdev, u8 instance);
+int hci_enable_ext_advertising_sync(struct hci_dev *hdev, u8 instance);
+int hci_enable_advertising_sync(struct hci_dev *hdev);
+int hci_enable_advertising(struct hci_dev *hdev);
+
+int hci_remove_advertising_sync(struct hci_dev *hdev, struct sock *sk,
+ u8 instance, bool force);
+int hci_disable_advertising_sync(struct hci_dev *hdev);
+
+int hci_update_passive_scan_sync(struct hci_dev *hdev);
+int hci_update_passive_scan(struct hci_dev *hdev);
+int hci_read_rssi_sync(struct hci_dev *hdev, __le16 handle);
+int hci_read_tx_power_sync(struct hci_dev *hdev, __le16 handle, u8 type);
+int hci_write_sc_support_sync(struct hci_dev *hdev, u8 val);
+int hci_read_clock_sync(struct hci_dev *hdev, struct hci_cp_read_clock *cp);
+
+int hci_write_fast_connectable_sync(struct hci_dev *hdev, bool enable);
+int hci_update_scan_sync(struct hci_dev *hdev);
+
+int hci_write_le_host_supported_sync(struct hci_dev *hdev, u8 le, u8 simul);
+int hci_remove_ext_adv_instance_sync(struct hci_dev *hdev, u8 instance,
+ struct sock *sk);
+struct sk_buff *hci_read_local_oob_data_sync(struct hci_dev *hdev, bool ext,
+ struct sock *sk);
+
+int hci_reset_sync(struct hci_dev *hdev);
+int hci_dev_open_sync(struct hci_dev *hdev);
+int hci_dev_close_sync(struct hci_dev *hdev);
+
+int hci_powered_update_sync(struct hci_dev *hdev);
+int hci_set_powered_sync(struct hci_dev *hdev, u8 val);
+
+int hci_update_discoverable_sync(struct hci_dev *hdev);
+int hci_update_discoverable(struct hci_dev *hdev);
+
+int hci_update_connectable_sync(struct hci_dev *hdev);
+
+int hci_start_discovery_sync(struct hci_dev *hdev);
+int hci_stop_discovery_sync(struct hci_dev *hdev);
+
+int hci_suspend_sync(struct hci_dev *hdev);
+int hci_resume_sync(struct hci_dev *hdev);
diff --git a/include/net/bond_options.h b/include/net/bond_options.h
index e64833a674eb..dd75c071f67e 100644
--- a/include/net/bond_options.h
+++ b/include/net/bond_options.h
@@ -65,6 +65,7 @@ enum {
BOND_OPT_NUM_PEER_NOTIF_ALIAS,
BOND_OPT_PEER_NOTIF_DELAY,
BOND_OPT_LACP_ACTIVE,
+ BOND_OPT_MISSED_MAX,
BOND_OPT_LAST
};
diff --git a/include/net/bonding.h b/include/net/bonding.h
index 15e083e18f75..f6ae3a4baea4 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -121,6 +121,7 @@ struct bond_params {
int xmit_policy;
int miimon;
u8 num_peer_notif;
+ u8 missed_max;
int arp_interval;
int arp_validate;
int arp_all_targets;
diff --git a/include/net/devlink.h b/include/net/devlink.h
index aab3d007c577..043fcec8b0aa 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -361,33 +361,6 @@ devlink_resource_size_params_init(struct devlink_resource_size_params *size_para
typedef u64 devlink_resource_occ_get_t(void *priv);
-/**
- * struct devlink_resource - devlink resource
- * @name: name of the resource
- * @id: id, per devlink instance
- * @size: size of the resource
- * @size_new: updated size of the resource, reload is needed
- * @size_valid: valid in case the total size of the resource is valid
- * including its children
- * @parent: parent resource
- * @size_params: size parameters
- * @list: parent list
- * @resource_list: list of child resources
- */
-struct devlink_resource {
- const char *name;
- u64 id;
- u64 size;
- u64 size_new;
- bool size_valid;
- struct devlink_resource *parent;
- struct devlink_resource_size_params size_params;
- struct list_head list;
- struct list_head resource_list;
- devlink_resource_occ_get_t *occ_get;
- void *occ_get_priv;
-};
-
#define DEVLINK_RESOURCE_ID_PARENT_TOP 0
#define DEVLINK_RESOURCE_GENERIC_NAME_PORTS "physical_ports"
@@ -485,6 +458,7 @@ enum devlink_param_generic_id {
DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH,
DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET,
+ DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP,
/* add new param generic ids above here*/
__DEVLINK_PARAM_GENERIC_ID_MAX,
@@ -534,6 +508,9 @@ enum devlink_param_generic_id {
#define DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME "enable_vnet"
#define DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE DEVLINK_PARAM_TYPE_BOOL
+#define DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME "enable_iwarp"
+#define DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE DEVLINK_PARAM_TYPE_BOOL
+
#define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate) \
{ \
.id = DEVLINK_PARAM_GENERIC_ID_##_id, \
@@ -1567,8 +1544,7 @@ int devlink_resource_register(struct devlink *devlink,
u64 resource_id,
u64 parent_resource_id,
const struct devlink_resource_size_params *size_params);
-void devlink_resources_unregister(struct devlink *devlink,
- struct devlink_resource *resource);
+void devlink_resources_unregister(struct devlink *devlink);
int devlink_resource_size_get(struct devlink *devlink,
u64 resource_id,
u64 *p_resource_size);
diff --git a/include/net/dsa.h b/include/net/dsa.h
index eff5c44ba377..8ca9d50cbbc2 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -645,8 +645,8 @@ struct dsa_switch_ops {
/*
* PHYLINK integration
*/
- void (*phylink_get_interfaces)(struct dsa_switch *ds, int port,
- unsigned long *supported_interfaces);
+ void (*phylink_get_caps)(struct dsa_switch *ds, int port,
+ struct phylink_config *config);
void (*phylink_validate)(struct dsa_switch *ds, int port,
unsigned long *supported,
struct phylink_link_state *state);
diff --git a/include/net/gro.h b/include/net/gro.h
index 01edaf3fdda0..b1139fca7c43 100644
--- a/include/net/gro.h
+++ b/include/net/gro.h
@@ -4,9 +4,368 @@
#define _NET_IPV6_GRO_H
#include <linux/indirect_call_wrapper.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <net/ip6_checksum.h>
+#include <linux/skbuff.h>
+#include <net/udp.h>
-struct list_head;
-struct sk_buff;
+struct napi_gro_cb {
+ /* Virtual address of skb_shinfo(skb)->frags[0].page + offset. */
+ void *frag0;
+
+ /* Length of frag0. */
+ unsigned int frag0_len;
+
+ /* This indicates where we are processing relative to skb->data. */
+ int data_offset;
+
+ /* This is non-zero if the packet cannot be merged with the new skb. */
+ u16 flush;
+
+ /* Save the IP ID here and check when we get to the transport layer */
+ u16 flush_id;
+
+ /* Number of segments aggregated. */
+ u16 count;
+
+ /* Start offset for remote checksum offload */
+ u16 gro_remcsum_start;
+
+ /* jiffies when first packet was created/queued */
+ unsigned long age;
+
+ /* Used in ipv6_gro_receive() and foo-over-udp */
+ u16 proto;
+
+ /* This is non-zero if the packet may be of the same flow. */
+ u8 same_flow:1;
+
+ /* Used in tunnel GRO receive */
+ u8 encap_mark:1;
+
+ /* GRO checksum is valid */
+ u8 csum_valid:1;
+
+ /* Number of checksums via CHECKSUM_UNNECESSARY */
+ u8 csum_cnt:3;
+
+ /* Free the skb? */
+ u8 free:2;
+#define NAPI_GRO_FREE 1
+#define NAPI_GRO_FREE_STOLEN_HEAD 2
+
+ /* Used in foo-over-udp, set in udp[46]_gro_receive */
+ u8 is_ipv6:1;
+
+ /* Used in GRE, set in fou/gue_gro_receive */
+ u8 is_fou:1;
+
+ /* Used to determine if flush_id can be ignored */
+ u8 is_atomic:1;
+
+ /* Number of gro_receive callbacks this packet already went through */
+ u8 recursion_counter:4;
+
+ /* GRO is done by frag_list pointer chaining. */
+ u8 is_flist:1;
+
+ /* used to support CHECKSUM_COMPLETE for tunneling protocols */
+ __wsum csum;
+
+ /* used in skb_gro_receive() slow path */
+ struct sk_buff *last;
+};
+
+#define NAPI_GRO_CB(skb) ((struct napi_gro_cb *)(skb)->cb)
+
+#define GRO_RECURSION_LIMIT 15
+static inline int gro_recursion_inc_test(struct sk_buff *skb)
+{
+ return ++NAPI_GRO_CB(skb)->recursion_counter == GRO_RECURSION_LIMIT;
+}
+
+typedef struct sk_buff *(*gro_receive_t)(struct list_head *, struct sk_buff *);
+static inline struct sk_buff *call_gro_receive(gro_receive_t cb,
+ struct list_head *head,
+ struct sk_buff *skb)
+{
+ if (unlikely(gro_recursion_inc_test(skb))) {
+ NAPI_GRO_CB(skb)->flush |= 1;
+ return NULL;
+ }
+
+ return cb(head, skb);
+}
+
+typedef struct sk_buff *(*gro_receive_sk_t)(struct sock *, struct list_head *,
+ struct sk_buff *);
+static inline struct sk_buff *call_gro_receive_sk(gro_receive_sk_t cb,
+ struct sock *sk,
+ struct list_head *head,
+ struct sk_buff *skb)
+{
+ if (unlikely(gro_recursion_inc_test(skb))) {
+ NAPI_GRO_CB(skb)->flush |= 1;
+ return NULL;
+ }
+
+ return cb(sk, head, skb);
+}
+
+static inline unsigned int skb_gro_offset(const struct sk_buff *skb)
+{
+ return NAPI_GRO_CB(skb)->data_offset;
+}
+
+static inline unsigned int skb_gro_len(const struct sk_buff *skb)
+{
+ return skb->len - NAPI_GRO_CB(skb)->data_offset;
+}
+
+static inline void skb_gro_pull(struct sk_buff *skb, unsigned int len)
+{
+ NAPI_GRO_CB(skb)->data_offset += len;
+}
+
+static inline void *skb_gro_header_fast(struct sk_buff *skb,
+ unsigned int offset)
+{
+ return NAPI_GRO_CB(skb)->frag0 + offset;
+}
+
+static inline int skb_gro_header_hard(struct sk_buff *skb, unsigned int hlen)
+{
+ return NAPI_GRO_CB(skb)->frag0_len < hlen;
+}
+
+static inline void skb_gro_frag0_invalidate(struct sk_buff *skb)
+{
+ NAPI_GRO_CB(skb)->frag0 = NULL;
+ NAPI_GRO_CB(skb)->frag0_len = 0;
+}
+
+static inline void *skb_gro_header_slow(struct sk_buff *skb, unsigned int hlen,
+ unsigned int offset)
+{
+ if (!pskb_may_pull(skb, hlen))
+ return NULL;
+
+ skb_gro_frag0_invalidate(skb);
+ return skb->data + offset;
+}
+
+static inline void *skb_gro_network_header(struct sk_buff *skb)
+{
+ return (NAPI_GRO_CB(skb)->frag0 ?: skb->data) +
+ skb_network_offset(skb);
+}
+
+static inline __wsum inet_gro_compute_pseudo(struct sk_buff *skb, int proto)
+{
+ const struct iphdr *iph = skb_gro_network_header(skb);
+
+ return csum_tcpudp_nofold(iph->saddr, iph->daddr,
+ skb_gro_len(skb), proto, 0);
+}
+
+static inline void skb_gro_postpull_rcsum(struct sk_buff *skb,
+ const void *start, unsigned int len)
+{
+ if (NAPI_GRO_CB(skb)->csum_valid)
+ NAPI_GRO_CB(skb)->csum = ~csum_partial(start, len,
+ ~NAPI_GRO_CB(skb)->csum);
+}
+
+/* GRO checksum functions. These are logical equivalents of the normal
+ * checksum functions (in skbuff.h) except that they operate on the GRO
+ * offsets and fields in sk_buff.
+ */
+
+__sum16 __skb_gro_checksum_complete(struct sk_buff *skb);
+
+static inline bool skb_at_gro_remcsum_start(struct sk_buff *skb)
+{
+ return (NAPI_GRO_CB(skb)->gro_remcsum_start == skb_gro_offset(skb));
+}
+
+static inline bool __skb_gro_checksum_validate_needed(struct sk_buff *skb,
+ bool zero_okay,
+ __sum16 check)
+{
+ return ((skb->ip_summed != CHECKSUM_PARTIAL ||
+ skb_checksum_start_offset(skb) <
+ skb_gro_offset(skb)) &&
+ !skb_at_gro_remcsum_start(skb) &&
+ NAPI_GRO_CB(skb)->csum_cnt == 0 &&
+ (!zero_okay || check));
+}
+
+static inline __sum16 __skb_gro_checksum_validate_complete(struct sk_buff *skb,
+ __wsum psum)
+{
+ if (NAPI_GRO_CB(skb)->csum_valid &&
+ !csum_fold(csum_add(psum, NAPI_GRO_CB(skb)->csum)))
+ return 0;
+
+ NAPI_GRO_CB(skb)->csum = psum;
+
+ return __skb_gro_checksum_complete(skb);
+}
+
+static inline void skb_gro_incr_csum_unnecessary(struct sk_buff *skb)
+{
+ if (NAPI_GRO_CB(skb)->csum_cnt > 0) {
+ /* Consume a checksum from CHECKSUM_UNNECESSARY */
+ NAPI_GRO_CB(skb)->csum_cnt--;
+ } else {
+ /* Update skb for CHECKSUM_UNNECESSARY and csum_level when we
+ * verified a new top level checksum or an encapsulated one
+ * during GRO. This saves work if we fallback to normal path.
+ */
+ __skb_incr_checksum_unnecessary(skb);
+ }
+}
+
+#define __skb_gro_checksum_validate(skb, proto, zero_okay, check, \
+ compute_pseudo) \
+({ \
+ __sum16 __ret = 0; \
+ if (__skb_gro_checksum_validate_needed(skb, zero_okay, check)) \
+ __ret = __skb_gro_checksum_validate_complete(skb, \
+ compute_pseudo(skb, proto)); \
+ if (!__ret) \
+ skb_gro_incr_csum_unnecessary(skb); \
+ __ret; \
+})
+
+#define skb_gro_checksum_validate(skb, proto, compute_pseudo) \
+ __skb_gro_checksum_validate(skb, proto, false, 0, compute_pseudo)
+
+#define skb_gro_checksum_validate_zero_check(skb, proto, check, \
+ compute_pseudo) \
+ __skb_gro_checksum_validate(skb, proto, true, check, compute_pseudo)
+
+#define skb_gro_checksum_simple_validate(skb) \
+ __skb_gro_checksum_validate(skb, 0, false, 0, null_compute_pseudo)
+
+static inline bool __skb_gro_checksum_convert_check(struct sk_buff *skb)
+{
+ return (NAPI_GRO_CB(skb)->csum_cnt == 0 &&
+ !NAPI_GRO_CB(skb)->csum_valid);
+}
+
+static inline void __skb_gro_checksum_convert(struct sk_buff *skb,
+ __wsum pseudo)
+{
+ NAPI_GRO_CB(skb)->csum = ~pseudo;
+ NAPI_GRO_CB(skb)->csum_valid = 1;
+}
+
+#define skb_gro_checksum_try_convert(skb, proto, compute_pseudo) \
+do { \
+ if (__skb_gro_checksum_convert_check(skb)) \
+ __skb_gro_checksum_convert(skb, \
+ compute_pseudo(skb, proto)); \
+} while (0)
+
+struct gro_remcsum {
+ int offset;
+ __wsum delta;
+};
+
+static inline void skb_gro_remcsum_init(struct gro_remcsum *grc)
+{
+ grc->offset = 0;
+ grc->delta = 0;
+}
+
+static inline void *skb_gro_remcsum_process(struct sk_buff *skb, void *ptr,
+ unsigned int off, size_t hdrlen,
+ int start, int offset,
+ struct gro_remcsum *grc,
+ bool nopartial)
+{
+ __wsum delta;
+ size_t plen = hdrlen + max_t(size_t, offset + sizeof(u16), start);
+
+ BUG_ON(!NAPI_GRO_CB(skb)->csum_valid);
+
+ if (!nopartial) {
+ NAPI_GRO_CB(skb)->gro_remcsum_start = off + hdrlen + start;
+ return ptr;
+ }
+
+ ptr = skb_gro_header_fast(skb, off);
+ if (skb_gro_header_hard(skb, off + plen)) {
+ ptr = skb_gro_header_slow(skb, off + plen, off);
+ if (!ptr)
+ return NULL;
+ }
+
+ delta = remcsum_adjust(ptr + hdrlen, NAPI_GRO_CB(skb)->csum,
+ start, offset);
+
+ /* Adjust skb->csum since we changed the packet */
+ NAPI_GRO_CB(skb)->csum = csum_add(NAPI_GRO_CB(skb)->csum, delta);
+
+ grc->offset = off + hdrlen + offset;
+ grc->delta = delta;
+
+ return ptr;
+}
+
+static inline void skb_gro_remcsum_cleanup(struct sk_buff *skb,
+ struct gro_remcsum *grc)
+{
+ void *ptr;
+ size_t plen = grc->offset + sizeof(u16);
+
+ if (!grc->delta)
+ return;
+
+ ptr = skb_gro_header_fast(skb, grc->offset);
+ if (skb_gro_header_hard(skb, grc->offset + sizeof(u16))) {
+ ptr = skb_gro_header_slow(skb, plen, grc->offset);
+ if (!ptr)
+ return;
+ }
+
+ remcsum_unadjust((__sum16 *)ptr, grc->delta);
+}
+
+#ifdef CONFIG_XFRM_OFFLOAD
+static inline void skb_gro_flush_final(struct sk_buff *skb, struct sk_buff *pp, int flush)
+{
+ if (PTR_ERR(pp) != -EINPROGRESS)
+ NAPI_GRO_CB(skb)->flush |= flush;
+}
+static inline void skb_gro_flush_final_remcsum(struct sk_buff *skb,
+ struct sk_buff *pp,
+ int flush,
+ struct gro_remcsum *grc)
+{
+ if (PTR_ERR(pp) != -EINPROGRESS) {
+ NAPI_GRO_CB(skb)->flush |= flush;
+ skb_gro_remcsum_cleanup(skb, grc);
+ skb->remcsum_offload = 0;
+ }
+}
+#else
+static inline void skb_gro_flush_final(struct sk_buff *skb, struct sk_buff *pp, int flush)
+{
+ NAPI_GRO_CB(skb)->flush |= flush;
+}
+static inline void skb_gro_flush_final_remcsum(struct sk_buff *skb,
+ struct sk_buff *pp,
+ int flush,
+ struct gro_remcsum *grc)
+{
+ NAPI_GRO_CB(skb)->flush |= flush;
+ skb_gro_remcsum_cleanup(skb, grc);
+ skb->remcsum_offload = 0;
+}
+#endif
INDIRECT_CALLABLE_DECLARE(struct sk_buff *ipv6_gro_receive(struct list_head *,
struct sk_buff *));
@@ -15,6 +374,14 @@ INDIRECT_CALLABLE_DECLARE(struct sk_buff *inet_gro_receive(struct list_head *,
struct sk_buff *));
INDIRECT_CALLABLE_DECLARE(int inet_gro_complete(struct sk_buff *, int));
+INDIRECT_CALLABLE_DECLARE(struct sk_buff *udp4_gro_receive(struct list_head *,
+ struct sk_buff *));
+INDIRECT_CALLABLE_DECLARE(int udp4_gro_complete(struct sk_buff *, int));
+
+INDIRECT_CALLABLE_DECLARE(struct sk_buff *udp6_gro_receive(struct list_head *,
+ struct sk_buff *));
+INDIRECT_CALLABLE_DECLARE(int udp6_gro_complete(struct sk_buff *, int));
+
#define indirect_call_gro_receive_inet(cb, f2, f1, head, skb) \
({ \
unlikely(gro_recursion_inc_test(skb)) ? \
@@ -22,4 +389,54 @@ INDIRECT_CALLABLE_DECLARE(int inet_gro_complete(struct sk_buff *, int));
INDIRECT_CALL_INET(cb, f2, f1, head, skb); \
})
+struct sk_buff *udp_gro_receive(struct list_head *head, struct sk_buff *skb,
+ struct udphdr *uh, struct sock *sk);
+int udp_gro_complete(struct sk_buff *skb, int nhoff, udp_lookup_t lookup);
+
+static inline struct udphdr *udp_gro_udphdr(struct sk_buff *skb)
+{
+ struct udphdr *uh;
+ unsigned int hlen, off;
+
+ off = skb_gro_offset(skb);
+ hlen = off + sizeof(*uh);
+ uh = skb_gro_header_fast(skb, off);
+ if (skb_gro_header_hard(skb, hlen))
+ uh = skb_gro_header_slow(skb, hlen, off);
+
+ return uh;
+}
+
+static inline __wsum ip6_gro_compute_pseudo(struct sk_buff *skb, int proto)
+{
+ const struct ipv6hdr *iph = skb_gro_network_header(skb);
+
+ return ~csum_unfold(csum_ipv6_magic(&iph->saddr, &iph->daddr,
+ skb_gro_len(skb), proto, 0));
+}
+
+int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb);
+
+/* Pass the currently batched GRO_NORMAL SKBs up to the stack. */
+static inline void gro_normal_list(struct napi_struct *napi)
+{
+ if (!napi->rx_count)
+ return;
+ netif_receive_skb_list_internal(&napi->rx_list);
+ INIT_LIST_HEAD(&napi->rx_list);
+ napi->rx_count = 0;
+}
+
+/* Queue one GRO_NORMAL SKB up for list processing. If batch size exceeded,
+ * pass the whole batch up to the stack.
+ */
+static inline void gro_normal_one(struct napi_struct *napi, struct sk_buff *skb, int segs)
+{
+ list_add_tail(&skb->list, &napi->rx_list);
+ napi->rx_count += segs;
+ if (napi->rx_count >= gro_normal_batch)
+ gro_normal_list(napi);
+}
+
+
#endif /* _NET_IPV6_GRO_H */
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index fa6a87246a7b..4ad47d9f9d27 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -304,7 +304,7 @@ static inline __poll_t inet_csk_listen_poll(const struct sock *sk)
(EPOLLIN | EPOLLRDNORM) : 0;
}
-int inet_csk_listen_start(struct sock *sk, int backlog);
+int inet_csk_listen_start(struct sock *sk);
void inet_csk_listen_stop(struct sock *sk);
void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 9e1111f5915b..234d70ae5f4c 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -372,4 +372,16 @@ static inline bool inet_can_nonlocal_bind(struct net *net,
inet->freebind || inet->transparent;
}
+static inline bool inet_addr_valid_or_nonlocal(struct net *net,
+ struct inet_sock *inet,
+ __be32 addr,
+ int addr_type)
+{
+ return inet_can_nonlocal_bind(net, inet) ||
+ addr == htonl(INADDR_ANY) ||
+ addr_type == RTN_LOCAL ||
+ addr_type == RTN_MULTICAST ||
+ addr_type == RTN_BROADCAST;
+}
+
#endif /* _INET_SOCK_H */
diff --git a/include/net/ip.h b/include/net/ip.h
index b71e88507c4a..81e23a102a0d 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -568,14 +568,6 @@ static inline void iph_to_flow_copy_v4addrs(struct flow_keys *flow,
flow->control.addr_type = FLOW_DISSECTOR_KEY_IPV4_ADDRS;
}
-static inline __wsum inet_gro_compute_pseudo(struct sk_buff *skb, int proto)
-{
- const struct iphdr *iph = skb_gro_network_header(skb);
-
- return csum_tcpudp_nofold(iph->saddr, iph->daddr,
- skb_gro_len(skb), proto, 0);
-}
-
/*
* Map a multicast IP onto multicast MAC for type ethernet.
*/
@@ -791,5 +783,6 @@ int ip_sock_set_mtu_discover(struct sock *sk, int val);
void ip_sock_set_pktinfo(struct sock *sk);
void ip_sock_set_recverr(struct sock *sk);
void ip_sock_set_tos(struct sock *sk, int val);
+void __ip_sock_set_tos(struct sock *sk, int val);
#endif /* _IP_H */
diff --git a/include/net/ip6_checksum.h b/include/net/ip6_checksum.h
index b3f4eaa88672..c8a96b888277 100644
--- a/include/net/ip6_checksum.h
+++ b/include/net/ip6_checksum.h
@@ -43,14 +43,6 @@ static inline __wsum ip6_compute_pseudo(struct sk_buff *skb, int proto)
skb->len, proto, 0));
}
-static inline __wsum ip6_gro_compute_pseudo(struct sk_buff *skb, int proto)
-{
- const struct ipv6hdr *iph = skb_gro_network_header(skb);
-
- return ~csum_unfold(csum_ipv6_magic(&iph->saddr, &iph->daddr,
- skb_gro_len(skb), proto, 0));
-}
-
static __inline__ __sum16 tcp_v6_check(int len,
const struct in6_addr *saddr,
const struct in6_addr *daddr,
@@ -65,15 +57,9 @@ static inline void __tcp_v6_send_check(struct sk_buff *skb,
{
struct tcphdr *th = tcp_hdr(skb);
- if (skb->ip_summed == CHECKSUM_PARTIAL) {
- th->check = ~tcp_v6_check(skb->len, saddr, daddr, 0);
- skb->csum_start = skb_transport_header(skb) - skb->head;
- skb->csum_offset = offsetof(struct tcphdr, check);
- } else {
- th->check = tcp_v6_check(skb->len, saddr, daddr,
- csum_partial(th, th->doff << 2,
- skb->csum));
- }
+ th->check = ~tcp_v6_check(skb->len, saddr, daddr, 0);
+ skb->csum_start = skb_transport_header(skb) - skb->head;
+ skb->csum_offset = offsetof(struct tcphdr, check);
}
static inline void tcp_v6_gso_csum_prep(struct sk_buff *skb)
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 5efd0b71dc67..ca2d6b60e1ec 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -263,19 +263,19 @@ static inline bool ipv6_anycast_destination(const struct dst_entry *dst,
int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
int (*output)(struct net *, struct sock *, struct sk_buff *));
-static inline unsigned int ip6_skb_dst_mtu(struct sk_buff *skb)
+static inline unsigned int ip6_skb_dst_mtu(const struct sk_buff *skb)
{
- unsigned int mtu;
-
- struct ipv6_pinfo *np = skb->sk && !dev_recursion_level() ?
+ const struct ipv6_pinfo *np = skb->sk && !dev_recursion_level() ?
inet6_sk(skb->sk) : NULL;
+ const struct dst_entry *dst = skb_dst(skb);
+ unsigned int mtu;
if (np && np->pmtudisc >= IPV6_PMTUDISC_PROBE) {
- mtu = READ_ONCE(skb_dst(skb)->dev->mtu);
- mtu -= lwtunnel_headroom(skb_dst(skb)->lwtstate, mtu);
- } else
- mtu = dst_mtu(skb_dst(skb));
-
+ mtu = READ_ONCE(dst->dev->mtu);
+ mtu -= lwtunnel_headroom(dst->lwtstate, mtu);
+ } else {
+ mtu = dst_mtu(dst);
+ }
return mtu;
}
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index c19bf51ded1d..53ac7707ca70 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -345,9 +345,9 @@ struct ipcm6_cookie {
struct sockcm_cookie sockc;
__s16 hlimit;
__s16 tclass;
+ __u16 gso_size;
__s8 dontfrag;
struct ipv6_txoptions *opt;
- __u16 gso_size;
};
static inline void ipcm6_init(struct ipcm6_cookie *ipc6)
diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h
index ff06246dbbb9..df85d19fbf84 100644
--- a/include/net/iucv/af_iucv.h
+++ b/include/net/iucv/af_iucv.h
@@ -112,10 +112,12 @@ enum iucv_tx_notify {
struct iucv_sock {
struct sock sk;
- char src_user_id[8];
- char src_name[8];
- char dst_user_id[8];
- char dst_name[8];
+ struct_group(init,
+ char src_user_id[8];
+ char src_name[8];
+ char dst_user_id[8];
+ char dst_name[8];
+ );
struct list_head accept_q;
spinlock_t accept_q_lock;
struct sock *parent;
diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index 04341d86585d..53cb8de0e589 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -411,13 +411,7 @@ static inline void __ipv6_confirm_neigh(struct net_device *dev,
rcu_read_lock_bh();
n = __ipv6_neigh_lookup_noref(dev, pkey);
- if (n) {
- unsigned long now = jiffies;
-
- /* avoid dirtying neighbour */
- if (READ_ONCE(n->confirmed) != now)
- WRITE_ONCE(n->confirmed, now);
- }
+ neigh_confirm(n);
rcu_read_unlock_bh();
}
@@ -428,13 +422,7 @@ static inline void __ipv6_confirm_neigh_stub(struct net_device *dev,
rcu_read_lock_bh();
n = __ipv6_neigh_lookup_noref_stub(dev, pkey);
- if (n) {
- unsigned long now = jiffies;
-
- /* avoid dirtying neighbour */
- if (READ_ONCE(n->confirmed) != now)
- WRITE_ONCE(n->confirmed, now);
- }
+ neigh_confirm(n);
rcu_read_unlock_bh();
}
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 38a0c1d24570..55af812c3ed5 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -321,6 +321,17 @@ static inline struct neighbour *__neigh_lookup_noref(struct neigh_table *tbl,
return ___neigh_lookup_noref(tbl, tbl->key_eq, tbl->hash, pkey, dev);
}
+static inline void neigh_confirm(struct neighbour *n)
+{
+ if (n) {
+ unsigned long now = jiffies;
+
+ /* avoid dirtying neighbour */
+ if (READ_ONCE(n->confirmed) != now)
+ WRITE_ONCE(n->confirmed, now);
+ }
+}
+
void neigh_table_init(int index, struct neigh_table *tbl);
int neigh_table_clear(int index, struct neigh_table *tbl);
struct neighbour *neigh_lookup(struct neigh_table *tbl, const void *pkey,
diff --git a/include/net/netns/core.h b/include/net/netns/core.h
index 36c2d998a43c..552bc25b1933 100644
--- a/include/net/netns/core.h
+++ b/include/net/netns/core.h
@@ -12,7 +12,6 @@ struct netns_core {
int sysctl_somaxconn;
#ifdef CONFIG_PROC_FS
- int __percpu *sock_inuse;
struct prot_inuse __percpu *prot_inuse;
#endif
};
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 899c29c326ba..e7d1ed7a3dfb 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -984,12 +984,10 @@ struct sctp_transport {
} cacc;
struct {
- __u32 last_rtx_chunks;
__u16 pmtu;
__u16 probe_size;
__u16 probe_high;
- __u8 probe_count:3;
- __u8 raise_count:5;
+ __u8 probe_count;
__u8 state;
} pl; /* plpmtud related */
@@ -1011,6 +1009,7 @@ void sctp_transport_reset_t3_rtx(struct sctp_transport *);
void sctp_transport_reset_hb_timer(struct sctp_transport *);
void sctp_transport_reset_reconf_timer(struct sctp_transport *transport);
void sctp_transport_reset_probe_timer(struct sctp_transport *transport);
+void sctp_transport_reset_raise_timer(struct sctp_transport *transport);
int sctp_transport_hold(struct sctp_transport *);
void sctp_transport_put(struct sctp_transport *);
void sctp_transport_update_rto(struct sctp_transport *, __u32);
@@ -1025,7 +1024,7 @@ bool sctp_transport_update_pmtu(struct sctp_transport *t, u32 pmtu);
void sctp_transport_immediate_rtx(struct sctp_transport *);
void sctp_transport_dst_release(struct sctp_transport *t);
void sctp_transport_dst_confirm(struct sctp_transport *t);
-bool sctp_transport_pl_send(struct sctp_transport *t);
+void sctp_transport_pl_send(struct sctp_transport *t);
bool sctp_transport_pl_recv(struct sctp_transport *t);
diff --git a/include/net/sock.h b/include/net/sock.h
index bea21ff70e74..ae61cd0b650d 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -63,6 +63,7 @@
#include <linux/indirect_call_wrapper.h>
#include <linux/atomic.h>
#include <linux/refcount.h>
+#include <linux/llist.h>
#include <net/dst.h>
#include <net/checksum.h>
#include <net/tcp_states.h>
@@ -284,15 +285,14 @@ struct bpf_local_storage;
* @sk_no_check_tx: %SO_NO_CHECK setting, set checksum in TX packets
* @sk_no_check_rx: allow zero checksum in RX packets
* @sk_route_caps: route capabilities (e.g. %NETIF_F_TSO)
- * @sk_route_nocaps: forbidden route capabilities (e.g NETIF_F_GSO_MASK)
- * @sk_route_forced_caps: static, forced route capabilities
- * (set in tcp_init_sock())
+ * @sk_gso_disabled: if set, NETIF_F_GSO_MASK is forbidden.
* @sk_gso_type: GSO type (e.g. %SKB_GSO_TCPV4)
* @sk_gso_max_size: Maximum GSO segment size to build
* @sk_gso_max_segs: Maximum number of GSO segments
* @sk_pacing_shift: scaling factor for TCP Small Queues
* @sk_lingertime: %SO_LINGER l_linger setting
* @sk_backlog: always used with the per-socket spinlock held
+ * @defer_list: head of llist storing skbs to be freed
* @sk_callback_lock: used with the callbacks in the end of this struct
* @sk_error_queue: rarely used
* @sk_prot_creator: sk_prot of original sock creator (see ipv6_setsockopt,
@@ -391,6 +391,11 @@ struct sock {
#define sk_flags __sk_common.skc_flags
#define sk_rxhash __sk_common.skc_rxhash
+ /* early demux fields */
+ struct dst_entry *sk_rx_dst;
+ int sk_rx_dst_ifindex;
+ u32 sk_rx_dst_cookie;
+
socket_lock_t sk_lock;
atomic_t sk_drops;
int sk_rcvlowat;
@@ -410,6 +415,8 @@ struct sock {
struct sk_buff *head;
struct sk_buff *tail;
} sk_backlog;
+ struct llist_head defer_list;
+
#define sk_rmem_alloc sk_backlog.rmem_alloc
int sk_forward_alloc;
@@ -431,9 +438,6 @@ struct sock {
#ifdef CONFIG_XFRM
struct xfrm_policy __rcu *sk_policy[2];
#endif
- struct dst_entry *sk_rx_dst;
- int sk_rx_dst_ifindex;
- u32 sk_rx_dst_cookie;
struct dst_entry __rcu *sk_dst_cache;
atomic_t sk_omem_alloc;
@@ -460,8 +464,6 @@ struct sock {
unsigned long sk_max_pacing_rate;
struct page_frag sk_frag;
netdev_features_t sk_route_caps;
- netdev_features_t sk_route_nocaps;
- netdev_features_t sk_route_forced_caps;
int sk_gso_type;
unsigned int sk_gso_max_size;
gfp_t sk_allocation;
@@ -471,7 +473,7 @@ struct sock {
* Because of non atomicity rules, all
* changes are protected by socket lock.
*/
- u8 sk_padding : 1,
+ u8 sk_gso_disabled : 1,
sk_kern_sock : 1,
sk_no_check_tx : 1,
sk_no_check_rx : 1,
@@ -493,6 +495,7 @@ struct sock {
u16 sk_busy_poll_budget;
#endif
spinlock_t sk_peer_lock;
+ int sk_bind_phc;
struct pid *sk_peer_pid;
const struct cred *sk_peer_cred;
@@ -502,7 +505,6 @@ struct sock {
seqlock_t sk_stamp_seq;
#endif
u16 sk_tsflags;
- int sk_bind_phc;
u8 sk_shutdown;
u32 sk_tskey;
atomic_t sk_zckey;
@@ -1022,12 +1024,18 @@ static inline __must_check int sk_add_backlog(struct sock *sk, struct sk_buff *s
int __sk_backlog_rcv(struct sock *sk, struct sk_buff *skb);
+INDIRECT_CALLABLE_DECLARE(int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb));
+INDIRECT_CALLABLE_DECLARE(int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb));
+
static inline int sk_backlog_rcv(struct sock *sk, struct sk_buff *skb)
{
if (sk_memalloc_socks() && skb_pfmemalloc(skb))
return __sk_backlog_rcv(sk, skb);
- return sk->sk_backlog_rcv(sk, skb);
+ return INDIRECT_CALL_INET(sk->sk_backlog_rcv,
+ tcp_v6_do_rcv,
+ tcp_v4_do_rcv,
+ sk, skb);
}
static inline void sk_incoming_cpu_update(struct sock *sk)
@@ -1210,7 +1218,9 @@ struct proto {
unsigned int inuse_idx;
#endif
+#if IS_ENABLED(CONFIG_MPTCP)
int (*forward_alloc_get)(const struct sock *sk);
+#endif
bool (*stream_memory_free)(const struct sock *sk, int wake);
bool (*sock_is_readable)(struct sock *sk);
@@ -1299,10 +1309,11 @@ INDIRECT_CALLABLE_DECLARE(bool tcp_stream_memory_free(const struct sock *sk, int
static inline int sk_forward_alloc_get(const struct sock *sk)
{
- if (!sk->sk_prot->forward_alloc_get)
- return sk->sk_forward_alloc;
-
- return sk->sk_prot->forward_alloc_get(sk);
+#if IS_ENABLED(CONFIG_MPTCP)
+ if (sk->sk_prot->forward_alloc_get)
+ return sk->sk_prot->forward_alloc_get(sk);
+#endif
+ return sk->sk_forward_alloc;
}
static inline bool __sk_stream_memory_free(const struct sock *sk, int wake)
@@ -1419,13 +1430,32 @@ proto_memory_pressure(struct proto *prot)
#ifdef CONFIG_PROC_FS
-/* Called with local bh disabled */
-void sock_prot_inuse_add(struct net *net, struct proto *prot, int inc);
+#define PROTO_INUSE_NR 64 /* should be enough for the first time */
+struct prot_inuse {
+ int all;
+ int val[PROTO_INUSE_NR];
+};
+
+static inline void sock_prot_inuse_add(const struct net *net,
+ const struct proto *prot, int val)
+{
+ this_cpu_add(net->core.prot_inuse->val[prot->inuse_idx], val);
+}
+
+static inline void sock_inuse_add(const struct net *net, int val)
+{
+ this_cpu_add(net->core.prot_inuse->all, val);
+}
+
int sock_prot_inuse_get(struct net *net, struct proto *proto);
int sock_inuse_get(struct net *net);
#else
-static inline void sock_prot_inuse_add(struct net *net, struct proto *prot,
- int inc)
+static inline void sock_prot_inuse_add(const struct net *net,
+ const struct proto *prot, int val)
+{
+}
+
+static inline void sock_inuse_add(const struct net *net, int val)
{
}
#endif
@@ -2118,13 +2148,10 @@ static inline void sock_confirm_neigh(struct sk_buff *skb, struct neighbour *n)
{
if (skb_get_dst_pending_confirm(skb)) {
struct sock *sk = skb->sk;
- unsigned long now = jiffies;
- /* avoid dirtying neighbour */
- if (READ_ONCE(n->confirmed) != now)
- WRITE_ONCE(n->confirmed, now);
if (sk && READ_ONCE(sk->sk_dst_pending_confirm))
WRITE_ONCE(sk->sk_dst_pending_confirm, 0);
+ neigh_confirm(n);
}
}
@@ -2137,10 +2164,10 @@ static inline bool sk_can_gso(const struct sock *sk)
void sk_setup_caps(struct sock *sk, struct dst_entry *dst);
-static inline void sk_nocaps_add(struct sock *sk, netdev_features_t flags)
+static inline void sk_gso_disable(struct sock *sk)
{
- sk->sk_route_nocaps |= flags;
- sk->sk_route_caps &= ~flags;
+ sk->sk_gso_disabled = 1;
+ sk->sk_route_caps &= ~NETIF_F_GSO_MASK;
}
static inline int skb_do_copy_data_nocache(struct sock *sk, struct sk_buff *skb,
@@ -2654,6 +2681,11 @@ static inline void skb_setup_tx_timestamp(struct sk_buff *skb, __u16 tsflags)
&skb_shinfo(skb)->tskey);
}
+static inline bool sk_is_tcp(const struct sock *sk)
+{
+ return sk->sk_type == SOCK_STREAM && sk->sk_protocol == IPPROTO_TCP;
+}
+
/**
* sk_eat_skb - Release a skb if it is no longer needed
* @sk: socket to eat this skb from
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 4da22b41bde6..44e442bf23f9 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1368,6 +1368,16 @@ static inline bool tcp_checksum_complete(struct sk_buff *skb)
}
bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb);
+
+void __sk_defer_free_flush(struct sock *sk);
+
+static inline void sk_defer_free_flush(struct sock *sk)
+{
+ if (llist_empty(&sk->defer_list))
+ return;
+ __sk_defer_free_flush(sk);
+}
+
int tcp_filter(struct sock *sk, struct sk_buff *skb);
void tcp_set_state(struct sock *sk, int state);
void tcp_done(struct sock *sk);
@@ -2172,9 +2182,13 @@ static inline void tcp_segs_in(struct tcp_sock *tp, const struct sk_buff *skb)
u16 segs_in;
segs_in = max_t(u16, 1, skb_shinfo(skb)->gso_segs);
- tp->segs_in += segs_in;
+
+ /* We update these fields while other threads might
+ * read them from tcp_get_info()
+ */
+ WRITE_ONCE(tp->segs_in, tp->segs_in + segs_in);
if (skb->len > tcp_hdrlen(skb))
- tp->data_segs_in += segs_in;
+ WRITE_ONCE(tp->data_segs_in, tp->data_segs_in + segs_in);
}
/*
diff --git a/include/net/udp.h b/include/net/udp.h
index 909ecf447e0f..f1c2a88c9005 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -167,36 +167,12 @@ static inline void udp_csum_pull_header(struct sk_buff *skb)
typedef struct sock *(*udp_lookup_t)(const struct sk_buff *skb, __be16 sport,
__be16 dport);
-INDIRECT_CALLABLE_DECLARE(struct sk_buff *udp4_gro_receive(struct list_head *,
- struct sk_buff *));
-INDIRECT_CALLABLE_DECLARE(int udp4_gro_complete(struct sk_buff *, int));
-INDIRECT_CALLABLE_DECLARE(struct sk_buff *udp6_gro_receive(struct list_head *,
- struct sk_buff *));
-INDIRECT_CALLABLE_DECLARE(int udp6_gro_complete(struct sk_buff *, int));
INDIRECT_CALLABLE_DECLARE(void udp_v6_early_demux(struct sk_buff *));
INDIRECT_CALLABLE_DECLARE(int udpv6_rcv(struct sk_buff *));
-struct sk_buff *udp_gro_receive(struct list_head *head, struct sk_buff *skb,
- struct udphdr *uh, struct sock *sk);
-int udp_gro_complete(struct sk_buff *skb, int nhoff, udp_lookup_t lookup);
-
struct sk_buff *__udp_gso_segment(struct sk_buff *gso_skb,
netdev_features_t features, bool is_ipv6);
-static inline struct udphdr *udp_gro_udphdr(struct sk_buff *skb)
-{
- struct udphdr *uh;
- unsigned int hlen, off;
-
- off = skb_gro_offset(skb);
- hlen = off + sizeof(*uh);
- uh = skb_gro_header_fast(skb, off);
- if (skb_gro_header_hard(skb, hlen))
- uh = skb_gro_header_slow(skb, hlen, off);
-
- return uh;
-}
-
/* hash routines shared between UDPv4/6 and UDP-Litev4/6 */
static inline int udp_lib_hash(struct sock *sk)
{
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index 08537aa14f7c..5a934bebe630 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -10,6 +10,7 @@
#include <net/nexthop.h>
#define IANA_VXLAN_UDP_PORT 4789
+#define IANA_VXLAN_GPE_UDP_PORT 4790
/* VXLAN protocol (RFC 7348) header:
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h
index fef3a36b0210..33f2e8c9e88b 100644
--- a/include/soc/mscc/ocelot.h
+++ b/include/soc/mscc/ocelot.h
@@ -555,12 +555,26 @@ struct ocelot_ops {
u16 (*wm_enc)(u16 value);
u16 (*wm_dec)(u16 value);
void (*wm_stat)(u32 val, u32 *inuse, u32 *maxuse);
+ void (*psfp_init)(struct ocelot *ocelot);
+ int (*psfp_filter_add)(struct ocelot *ocelot, int port,
+ struct flow_cls_offload *f);
+ int (*psfp_filter_del)(struct ocelot *ocelot, struct flow_cls_offload *f);
+ int (*psfp_stats_get)(struct ocelot *ocelot, struct flow_cls_offload *f,
+ struct flow_stats *stats);
+ void (*cut_through_fwd)(struct ocelot *ocelot);
+};
+
+struct ocelot_vcap_policer {
+ struct list_head pol_list;
+ u16 base;
+ u16 max;
+ u16 base2;
+ u16 max2;
};
struct ocelot_vcap_block {
struct list_head rules;
int count;
- int pol_lpr;
};
struct ocelot_bridge_vlan {
@@ -581,6 +595,12 @@ enum ocelot_port_tag_config {
OCELOT_PORT_TAG_TRUNK = 3,
};
+struct ocelot_psfp_list {
+ struct list_head stream_list;
+ struct list_head sfi_list;
+ struct list_head sgi_list;
+};
+
enum ocelot_sb {
OCELOT_SB_BUF,
OCELOT_SB_REF,
@@ -593,6 +613,19 @@ enum ocelot_sb_pool {
OCELOT_SB_POOL_NUM,
};
+/* MAC table entry types.
+ * ENTRYTYPE_NORMAL is subject to aging.
+ * ENTRYTYPE_LOCKED is not subject to aging.
+ * ENTRYTYPE_MACv4 is not subject to aging. For IPv4 multicast.
+ * ENTRYTYPE_MACv6 is not subject to aging. For IPv6 multicast.
+ */
+enum macaccess_entry_type {
+ ENTRYTYPE_NORMAL = 0,
+ ENTRYTYPE_LOCKED,
+ ENTRYTYPE_MACv4,
+ ENTRYTYPE_MACv6,
+};
+
#define OCELOT_QUIRK_PCS_PERFORMS_RATE_ADAPTATION BIT(0)
#define OCELOT_QUIRK_QSGMII_PORTS_MUST_BE_UP BIT(1)
@@ -623,6 +656,8 @@ struct ocelot_port {
struct net_device *bridge;
u8 stp_state;
+
+ int speed;
};
struct ocelot {
@@ -667,8 +702,11 @@ struct ocelot {
struct list_head dummy_rules;
struct ocelot_vcap_block block[3];
+ struct ocelot_vcap_policer vcap_pol;
struct vcap_props *vcap;
+ struct ocelot_psfp_list psfp;
+
/* Workqueue to check statistics for overflow with its lock */
struct mutex stats_lock;
u64 *stats;
@@ -677,6 +715,8 @@ struct ocelot {
/* Lock for serializing access to the MAC table */
struct mutex mact_lock;
+ /* Lock for serializing forwarding domain changes */
+ struct mutex fwd_domain_lock;
struct workqueue_struct *owq;
@@ -776,7 +816,9 @@ void ocelot_set_ageing_time(struct ocelot *ocelot, unsigned int msecs);
int ocelot_port_vlan_filtering(struct ocelot *ocelot, int port, bool enabled,
struct netlink_ext_ack *extack);
void ocelot_bridge_stp_state_set(struct ocelot *ocelot, int port, u8 state);
-void ocelot_apply_bridge_fwd_mask(struct ocelot *ocelot);
+u32 ocelot_get_dsa_8021q_cpu_mask(struct ocelot *ocelot);
+u32 ocelot_get_bridge_fwd_mask(struct ocelot *ocelot, int src_port);
+void ocelot_apply_bridge_fwd_mask(struct ocelot *ocelot, bool joining);
int ocelot_port_pre_bridge_flags(struct ocelot *ocelot, int port,
struct switchdev_brport_flags val);
void ocelot_port_bridge_flags(struct ocelot *ocelot, int port,
@@ -870,6 +912,19 @@ void ocelot_phylink_mac_link_up(struct ocelot *ocelot, int port,
bool tx_pause, bool rx_pause,
unsigned long quirks);
+int ocelot_mact_lookup(struct ocelot *ocelot, int *dst_idx,
+ const unsigned char mac[ETH_ALEN],
+ unsigned int vid, enum macaccess_entry_type *type);
+int ocelot_mact_learn_streamdata(struct ocelot *ocelot, int dst_idx,
+ const unsigned char mac[ETH_ALEN],
+ unsigned int vid,
+ enum macaccess_entry_type type,
+ int sfid, int ssid);
+
+int ocelot_vcap_policer_add(struct ocelot *ocelot, u32 pol_ix,
+ struct ocelot_policer *pol);
+int ocelot_vcap_policer_del(struct ocelot *ocelot, u32 pol_ix);
+
#if IS_ENABLED(CONFIG_BRIDGE_MRP)
int ocelot_mrp_add(struct ocelot *ocelot, int port,
const struct switchdev_obj_mrp *mrp);
diff --git a/include/soc/mscc/ocelot_ana.h b/include/soc/mscc/ocelot_ana.h
index 1669481d9779..67e0ae05a5ab 100644
--- a/include/soc/mscc/ocelot_ana.h
+++ b/include/soc/mscc/ocelot_ana.h
@@ -227,6 +227,11 @@
#define ANA_TABLES_SFIDACCESS_SFID_TBL_CMD(x) ((x) & GENMASK(1, 0))
#define ANA_TABLES_SFIDACCESS_SFID_TBL_CMD_M GENMASK(1, 0)
+#define SFIDACCESS_CMD_IDLE 0
+#define SFIDACCESS_CMD_READ 1
+#define SFIDACCESS_CMD_WRITE 2
+#define SFIDACCESS_CMD_INIT 3
+
#define ANA_TABLES_SFIDTIDX_SGID_VALID BIT(26)
#define ANA_TABLES_SFIDTIDX_SGID(x) (((x) << 18) & GENMASK(25, 18))
#define ANA_TABLES_SFIDTIDX_SGID_M GENMASK(25, 18)
@@ -255,6 +260,11 @@
#define ANA_SG_CONFIG_REG_3_INIT_IPS(x) (((x) << 21) & GENMASK(24, 21))
#define ANA_SG_CONFIG_REG_3_INIT_IPS_M GENMASK(24, 21)
#define ANA_SG_CONFIG_REG_3_INIT_IPS_X(x) (((x) & GENMASK(24, 21)) >> 21)
+#define ANA_SG_CONFIG_REG_3_IPV_VALID BIT(24)
+#define ANA_SG_CONFIG_REG_3_IPV_INVALID(x) (((x) << 24) & GENMASK(24, 24))
+#define ANA_SG_CONFIG_REG_3_INIT_IPV(x) (((x) << 21) & GENMASK(23, 21))
+#define ANA_SG_CONFIG_REG_3_INIT_IPV_M GENMASK(23, 21)
+#define ANA_SG_CONFIG_REG_3_INIT_IPV_X(x) (((x) & GENMASK(23, 21)) >> 21)
#define ANA_SG_CONFIG_REG_3_INIT_GATE_STATE BIT(25)
#define ANA_SG_GCL_GS_CONFIG_RSZ 0x4
diff --git a/include/soc/mscc/ocelot_vcap.h b/include/soc/mscc/ocelot_vcap.h
index 4d1dfa1136b2..709cbc198fd2 100644
--- a/include/soc/mscc/ocelot_vcap.h
+++ b/include/soc/mscc/ocelot_vcap.h
@@ -656,6 +656,7 @@ enum ocelot_vcap_filter_type {
OCELOT_VCAP_FILTER_DUMMY,
OCELOT_VCAP_FILTER_PAG,
OCELOT_VCAP_FILTER_OFFLOAD,
+ OCELOT_PSFP_FILTER_OFFLOAD,
};
struct ocelot_vcap_id {
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index ba5af15e25f5..6297eafdc40f 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -4938,6 +4938,25 @@ union bpf_attr {
* **-ENOENT** if symbol is not found.
*
* **-EPERM** if caller does not have permission to obtain kernel address.
+ *
+ * long bpf_find_vma(struct task_struct *task, u64 addr, void *callback_fn, void *callback_ctx, u64 flags)
+ * Description
+ * Find vma of *task* that contains *addr*, call *callback_fn*
+ * function with *task*, *vma*, and *callback_ctx*.
+ * The *callback_fn* should be a static function and
+ * the *callback_ctx* should be a pointer to the stack.
+ * The *flags* is used to control certain aspects of the helper.
+ * Currently, the *flags* must be 0.
+ *
+ * The expected callback signature is
+ *
+ * long (\*callback_fn)(struct task_struct \*task, struct vm_area_struct \*vma, void \*callback_ctx);
+ *
+ * Return
+ * 0 on success.
+ * **-ENOENT** if *task->mm* is NULL, or no vma contains *addr*.
+ * **-EBUSY** if failed to try lock mmap_lock.
+ * **-EINVAL** for invalid **flags**.
*/
#define __BPF_FUNC_MAPPER(FN) \
FN(unspec), \
@@ -5120,6 +5139,7 @@ union bpf_attr {
FN(trace_vprintk), \
FN(skc_to_unix_sock), \
FN(kallsyms_lookup_name), \
+ FN(find_vma), \
/* */
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
@@ -6296,6 +6316,7 @@ struct bpf_sk_lookup {
__u32 local_ip4; /* Network byte order */
__u32 local_ip6[4]; /* Network byte order */
__u32 local_port; /* Host byte order */
+ __u32 ingress_ifindex; /* The arriving interface. Determined by inet_iif. */
};
/*
diff --git a/include/uapi/linux/btf.h b/include/uapi/linux/btf.h
index deb12f755f0f..b0d8fea1951d 100644
--- a/include/uapi/linux/btf.h
+++ b/include/uapi/linux/btf.h
@@ -43,7 +43,7 @@ struct btf_type {
* "size" tells the size of the type it is describing.
*
* "type" is used by PTR, TYPEDEF, VOLATILE, CONST, RESTRICT,
- * FUNC, FUNC_PROTO, VAR and DECL_TAG.
+ * FUNC, FUNC_PROTO, VAR, DECL_TAG and TYPE_TAG.
* "type" is a type_id referring to another type.
*/
union {
@@ -75,6 +75,7 @@ enum {
BTF_KIND_DATASEC = 15, /* Section */
BTF_KIND_FLOAT = 16, /* Floating point */
BTF_KIND_DECL_TAG = 17, /* Decl Tag */
+ BTF_KIND_TYPE_TAG = 18, /* Type Tag */
NR_BTF_KINDS,
BTF_KIND_MAX = NR_BTF_KINDS - 1,
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index a2223b685451..7bc4b8def12c 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -231,6 +231,7 @@ enum tunable_id {
ETHTOOL_RX_COPYBREAK,
ETHTOOL_TX_COPYBREAK,
ETHTOOL_PFC_PREVENTION_TOUT, /* timeout in msecs */
+ ETHTOOL_TX_COPYBREAK_BUF_SIZE,
/*
* Add your fresh new tunable attribute above and remember to update
* tunable_strings[] in net/ethtool/common.c
diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h
index 999777d32dcf..cca6e474a085 100644
--- a/include/uapi/linux/ethtool_netlink.h
+++ b/include/uapi/linux/ethtool_netlink.h
@@ -329,6 +329,7 @@ enum {
ETHTOOL_A_RINGS_RX_MINI, /* u32 */
ETHTOOL_A_RINGS_RX_JUMBO, /* u32 */
ETHTOOL_A_RINGS_TX, /* u32 */
+ ETHTOOL_A_RINGS_RX_BUF_LEN, /* u32 */
/* add new constants above here */
__ETHTOOL_A_RINGS_CNT,
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index eebd3894fe89..4ac53b30b6dc 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -858,6 +858,7 @@ enum {
IFLA_BOND_TLB_DYNAMIC_LB,
IFLA_BOND_PEER_NOTIF_DELAY,
IFLA_BOND_AD_LACP_ACTIVE,
+ IFLA_BOND_MISSED_MAX,
__IFLA_BOND_MAX,
};
diff --git a/include/uapi/linux/tty.h b/include/uapi/linux/tty.h
index 376cccf397be..a58deb3061eb 100644
--- a/include/uapi/linux/tty.h
+++ b/include/uapi/linux/tty.h
@@ -38,5 +38,6 @@
#define N_NCI 25 /* NFC NCI UART */
#define N_SPEAKUP 26 /* Speakup communication with synths */
#define N_NULL 27 /* Null ldisc used for error handling */
+#define N_MCTP 28 /* MCTP-over-serial */
#endif /* _UAPI_LINUX_TTY_H */