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-rw-r--r--include/linux/netdevice.h292
1 files changed, 188 insertions, 104 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3857517f1ca5..a1bff6518166 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -219,34 +219,6 @@ struct neighbour;
struct neigh_parms;
struct sk_buff;
-struct netif_rx_stats {
- unsigned total;
- unsigned dropped;
- unsigned time_squeeze;
- unsigned cpu_collision;
-};
-
-DECLARE_PER_CPU(struct netif_rx_stats, netdev_rx_stat);
-
-struct dev_addr_list {
- struct dev_addr_list *next;
- u8 da_addr[MAX_ADDR_LEN];
- u8 da_addrlen;
- u8 da_synced;
- int da_users;
- int da_gusers;
-};
-
-/*
- * We tag multicasts with these structures.
- */
-
-#define dev_mc_list dev_addr_list
-#define dmi_addr da_addr
-#define dmi_addrlen da_addrlen
-#define dmi_users da_users
-#define dmi_gusers da_gusers
-
struct netdev_hw_addr {
struct list_head list;
unsigned char addr[MAX_ADDR_LEN];
@@ -255,8 +227,10 @@ struct netdev_hw_addr {
#define NETDEV_HW_ADDR_T_SAN 2
#define NETDEV_HW_ADDR_T_SLAVE 3
#define NETDEV_HW_ADDR_T_UNICAST 4
+#define NETDEV_HW_ADDR_T_MULTICAST 5
int refcount;
bool synced;
+ bool global_use;
struct rcu_head rcu_head;
};
@@ -265,16 +239,20 @@ struct netdev_hw_addr_list {
int count;
};
-#define netdev_uc_count(dev) ((dev)->uc.count)
-#define netdev_uc_empty(dev) ((dev)->uc.count == 0)
-#define netdev_for_each_uc_addr(ha, dev) \
- list_for_each_entry(ha, &dev->uc.list, list)
+#define netdev_hw_addr_list_count(l) ((l)->count)
+#define netdev_hw_addr_list_empty(l) (netdev_hw_addr_list_count(l) == 0)
+#define netdev_hw_addr_list_for_each(ha, l) \
+ list_for_each_entry(ha, &(l)->list, list)
-#define netdev_mc_count(dev) ((dev)->mc_count)
-#define netdev_mc_empty(dev) (netdev_mc_count(dev) == 0)
+#define netdev_uc_count(dev) netdev_hw_addr_list_count(&(dev)->uc)
+#define netdev_uc_empty(dev) netdev_hw_addr_list_empty(&(dev)->uc)
+#define netdev_for_each_uc_addr(ha, dev) \
+ netdev_hw_addr_list_for_each(ha, &(dev)->uc)
-#define netdev_for_each_mc_addr(mclist, dev) \
- for (mclist = dev->mc_list; mclist; mclist = mclist->next)
+#define netdev_mc_count(dev) netdev_hw_addr_list_count(&(dev)->mc)
+#define netdev_mc_empty(dev) netdev_hw_addr_list_empty(&(dev)->mc)
+#define netdev_for_each_mc_addr(ha, dev) \
+ netdev_hw_addr_list_for_each(ha, &(dev)->mc)
struct hh_cache {
struct hh_cache *hh_next; /* Next entry */
@@ -531,6 +509,85 @@ struct netdev_queue {
unsigned long tx_dropped;
} ____cacheline_aligned_in_smp;
+#ifdef CONFIG_RPS
+/*
+ * This structure holds an RPS map which can be of variable length. The
+ * map is an array of CPUs.
+ */
+struct rps_map {
+ unsigned int len;
+ struct rcu_head rcu;
+ u16 cpus[0];
+};
+#define RPS_MAP_SIZE(_num) (sizeof(struct rps_map) + (_num * sizeof(u16)))
+
+/*
+ * The rps_dev_flow structure contains the mapping of a flow to a CPU and the
+ * tail pointer for that CPU's input queue at the time of last enqueue.
+ */
+struct rps_dev_flow {
+ u16 cpu;
+ u16 fill;
+ unsigned int last_qtail;
+};
+
+/*
+ * The rps_dev_flow_table structure contains a table of flow mappings.
+ */
+struct rps_dev_flow_table {
+ unsigned int mask;
+ struct rcu_head rcu;
+ struct work_struct free_work;
+ struct rps_dev_flow flows[0];
+};
+#define RPS_DEV_FLOW_TABLE_SIZE(_num) (sizeof(struct rps_dev_flow_table) + \
+ (_num * sizeof(struct rps_dev_flow)))
+
+/*
+ * The rps_sock_flow_table contains mappings of flows to the last CPU
+ * on which they were processed by the application (set in recvmsg).
+ */
+struct rps_sock_flow_table {
+ unsigned int mask;
+ u16 ents[0];
+};
+#define RPS_SOCK_FLOW_TABLE_SIZE(_num) (sizeof(struct rps_sock_flow_table) + \
+ (_num * sizeof(u16)))
+
+#define RPS_NO_CPU 0xffff
+
+static inline void rps_record_sock_flow(struct rps_sock_flow_table *table,
+ u32 hash)
+{
+ if (table && hash) {
+ unsigned int cpu, index = hash & table->mask;
+
+ /* We only give a hint, preemption can change cpu under us */
+ cpu = raw_smp_processor_id();
+
+ if (table->ents[index] != cpu)
+ table->ents[index] = cpu;
+ }
+}
+
+static inline void rps_reset_sock_flow(struct rps_sock_flow_table *table,
+ u32 hash)
+{
+ if (table && hash)
+ table->ents[hash & table->mask] = RPS_NO_CPU;
+}
+
+extern struct rps_sock_flow_table *rps_sock_flow_table;
+
+/* This structure contains an instance of an RX queue. */
+struct netdev_rx_queue {
+ struct rps_map *rps_map;
+ struct rps_dev_flow_table *rps_flow_table;
+ struct kobject kobj;
+ struct netdev_rx_queue *first;
+ atomic_t count;
+} ____cacheline_aligned_in_smp;
+#endif /* CONFIG_RPS */
/*
* This structure defines the management hooks for network devices.
@@ -630,6 +687,9 @@ struct netdev_queue {
* int (*ndo_set_vf_tx_rate)(struct net_device *dev, int vf, int rate);
* int (*ndo_get_vf_config)(struct net_device *dev,
* int vf, struct ifla_vf_info *ivf);
+ * int (*ndo_set_vf_port)(struct net_device *dev, int vf,
+ * struct nlattr *port[]);
+ * int (*ndo_get_vf_port)(struct net_device *dev, int vf, struct sk_buff *skb);
*/
#define HAVE_NET_DEVICE_OPS
struct net_device_ops {
@@ -668,6 +728,7 @@ struct net_device_ops {
unsigned short vid);
#ifdef CONFIG_NET_POLL_CONTROLLER
void (*ndo_poll_controller)(struct net_device *dev);
+ void (*ndo_netpoll_cleanup)(struct net_device *dev);
#endif
int (*ndo_set_vf_mac)(struct net_device *dev,
int queue, u8 *mac);
@@ -678,6 +739,11 @@ struct net_device_ops {
int (*ndo_get_vf_config)(struct net_device *dev,
int vf,
struct ifla_vf_info *ivf);
+ int (*ndo_set_vf_port)(struct net_device *dev,
+ int vf,
+ struct nlattr *port[]);
+ int (*ndo_get_vf_port)(struct net_device *dev,
+ int vf, struct sk_buff *skb);
#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
int (*ndo_fcoe_enable)(struct net_device *dev);
int (*ndo_fcoe_disable)(struct net_device *dev);
@@ -768,6 +834,7 @@ struct net_device {
#define NETIF_F_SCTP_CSUM (1 << 25) /* SCTP checksum offload */
#define NETIF_F_FCOE_MTU (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/
#define NETIF_F_NTUPLE (1 << 27) /* N-tuple filters supported */
+#define NETIF_F_RXHASH (1 << 28) /* Receive hashing offload */
/* Segmentation offload features */
#define NETIF_F_GSO_SHIFT 16
@@ -824,7 +891,7 @@ struct net_device {
unsigned char operstate; /* RFC2863 operstate */
unsigned char link_mode; /* mapping policy to operstate */
- unsigned mtu; /* interface MTU value */
+ unsigned int mtu; /* interface MTU value */
unsigned short type; /* interface hardware type */
unsigned short hard_header_len; /* hardware hdr length */
@@ -844,12 +911,10 @@ struct net_device {
unsigned char addr_len; /* hardware address length */
unsigned short dev_id; /* for shared network cards */
- struct netdev_hw_addr_list uc; /* Secondary unicast
- mac addresses */
- int uc_promisc;
spinlock_t addr_list_lock;
- struct dev_addr_list *mc_list; /* Multicast mac addresses */
- int mc_count; /* Number of installed mcasts */
+ struct netdev_hw_addr_list uc; /* Unicast mac addresses */
+ struct netdev_hw_addr_list mc; /* Multicast mac addresses */
+ int uc_promisc;
unsigned int promiscuity;
unsigned int allmulti;
@@ -882,6 +947,15 @@ struct net_device {
unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */
+#ifdef CONFIG_RPS
+ struct kset *queues_kset;
+
+ struct netdev_rx_queue *_rx;
+
+ /* Number of RX queues allocated at alloc_netdev_mq() time */
+ unsigned int num_rx_queues;
+#endif
+
struct netdev_queue rx_queue;
struct netdev_queue *_tx ____cacheline_aligned_in_smp;
@@ -1310,19 +1384,44 @@ static inline int unregister_gifconf(unsigned int family)
}
/*
- * Incoming packets are placed on per-cpu queues so that
- * no locking is needed.
+ * Incoming packets are placed on per-cpu queues
*/
struct softnet_data {
struct Qdisc *output_queue;
- struct sk_buff_head input_pkt_queue;
+ struct Qdisc **output_queue_tailp;
struct list_head poll_list;
struct sk_buff *completion_queue;
-
+ struct sk_buff_head process_queue;
+
+ /* stats */
+ unsigned int processed;
+ unsigned int time_squeeze;
+ unsigned int cpu_collision;
+ unsigned int received_rps;
+
+#ifdef CONFIG_RPS
+ struct softnet_data *rps_ipi_list;
+
+ /* Elements below can be accessed between CPUs for RPS */
+ struct call_single_data csd ____cacheline_aligned_in_smp;
+ struct softnet_data *rps_ipi_next;
+ unsigned int cpu;
+ unsigned int input_queue_head;
+#endif
+ unsigned dropped;
+ struct sk_buff_head input_pkt_queue;
struct napi_struct backlog;
};
-DECLARE_PER_CPU(struct softnet_data,softnet_data);
+static inline void input_queue_head_add(struct softnet_data *sd,
+ unsigned int len)
+{
+#ifdef CONFIG_RPS
+ sd->input_queue_head += len;
+#endif
+}
+
+DECLARE_PER_CPU_ALIGNED(struct softnet_data, softnet_data);
#define HAVE_NETIF_QUEUE
@@ -1949,6 +2048,22 @@ extern struct net_device *alloc_netdev_mq(int sizeof_priv, const char *name,
extern int register_netdev(struct net_device *dev);
extern void unregister_netdev(struct net_device *dev);
+/* General hardware address lists handling functions */
+extern int __hw_addr_add_multiple(struct netdev_hw_addr_list *to_list,
+ struct netdev_hw_addr_list *from_list,
+ int addr_len, unsigned char addr_type);
+extern void __hw_addr_del_multiple(struct netdev_hw_addr_list *to_list,
+ struct netdev_hw_addr_list *from_list,
+ int addr_len, unsigned char addr_type);
+extern int __hw_addr_sync(struct netdev_hw_addr_list *to_list,
+ struct netdev_hw_addr_list *from_list,
+ int addr_len);
+extern void __hw_addr_unsync(struct netdev_hw_addr_list *to_list,
+ struct netdev_hw_addr_list *from_list,
+ int addr_len);
+extern void __hw_addr_flush(struct netdev_hw_addr_list *list);
+extern void __hw_addr_init(struct netdev_hw_addr_list *list);
+
/* Functions used for device addresses handling */
extern int dev_addr_add(struct net_device *dev, unsigned char *addr,
unsigned char addr_type);
@@ -1960,26 +2075,34 @@ extern int dev_addr_add_multiple(struct net_device *to_dev,
extern int dev_addr_del_multiple(struct net_device *to_dev,
struct net_device *from_dev,
unsigned char addr_type);
+extern void dev_addr_flush(struct net_device *dev);
+extern int dev_addr_init(struct net_device *dev);
+
+/* Functions used for unicast addresses handling */
+extern int dev_uc_add(struct net_device *dev, unsigned char *addr);
+extern int dev_uc_del(struct net_device *dev, unsigned char *addr);
+extern int dev_uc_sync(struct net_device *to, struct net_device *from);
+extern void dev_uc_unsync(struct net_device *to, struct net_device *from);
+extern void dev_uc_flush(struct net_device *dev);
+extern void dev_uc_init(struct net_device *dev);
+
+/* Functions used for multicast addresses handling */
+extern int dev_mc_add(struct net_device *dev, unsigned char *addr);
+extern int dev_mc_add_global(struct net_device *dev, unsigned char *addr);
+extern int dev_mc_del(struct net_device *dev, unsigned char *addr);
+extern int dev_mc_del_global(struct net_device *dev, unsigned char *addr);
+extern int dev_mc_sync(struct net_device *to, struct net_device *from);
+extern void dev_mc_unsync(struct net_device *to, struct net_device *from);
+extern void dev_mc_flush(struct net_device *dev);
+extern void dev_mc_init(struct net_device *dev);
/* Functions used for secondary unicast and multicast support */
extern void dev_set_rx_mode(struct net_device *dev);
extern void __dev_set_rx_mode(struct net_device *dev);
-extern int dev_unicast_delete(struct net_device *dev, void *addr);
-extern int dev_unicast_add(struct net_device *dev, void *addr);
-extern int dev_unicast_sync(struct net_device *to, struct net_device *from);
-extern void dev_unicast_unsync(struct net_device *to, struct net_device *from);
-extern int dev_mc_delete(struct net_device *dev, void *addr, int alen, int all);
-extern int dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly);
-extern int dev_mc_sync(struct net_device *to, struct net_device *from);
-extern void dev_mc_unsync(struct net_device *to, struct net_device *from);
-extern int __dev_addr_delete(struct dev_addr_list **list, int *count, void *addr, int alen, int all);
-extern int __dev_addr_add(struct dev_addr_list **list, int *count, void *addr, int alen, int newonly);
-extern int __dev_addr_sync(struct dev_addr_list **to, int *to_count, struct dev_addr_list **from, int *from_count);
-extern void __dev_addr_unsync(struct dev_addr_list **to, int *to_count, struct dev_addr_list **from, int *from_count);
extern int dev_set_promiscuity(struct net_device *dev, int inc);
extern int dev_set_allmulti(struct net_device *dev, int inc);
extern void netdev_state_change(struct net_device *dev);
-extern void netdev_bonding_change(struct net_device *dev,
+extern int netdev_bonding_change(struct net_device *dev,
unsigned long event);
extern void netdev_features_change(struct net_device *dev);
/* Load a device via the kmod */
@@ -1989,6 +2112,7 @@ extern const struct net_device_stats *dev_get_stats(struct net_device *dev);
extern void dev_txq_stats_fold(const struct net_device *dev, struct net_device_stats *stats);
extern int netdev_max_backlog;
+extern int netdev_tstamp_prequeue;
extern int weight_p;
extern int netdev_set_master(struct net_device *dev, struct net_device *master);
extern int skb_checksum_help(struct sk_buff *skb);
@@ -2049,54 +2173,14 @@ static inline void netif_set_gso_max_size(struct net_device *dev,
dev->gso_max_size = size;
}
-static inline void skb_bond_set_mac_by_master(struct sk_buff *skb,
- struct net_device *master)
-{
- if (skb->pkt_type == PACKET_HOST) {
- u16 *dest = (u16 *) eth_hdr(skb)->h_dest;
+extern int __skb_bond_should_drop(struct sk_buff *skb,
+ struct net_device *master);
- memcpy(dest, master->dev_addr, ETH_ALEN);
- }
-}
-
-/* On bonding slaves other than the currently active slave, suppress
- * duplicates except for 802.3ad ETH_P_SLOW, alb non-mcast/bcast, and
- * ARP on active-backup slaves with arp_validate enabled.
- */
static inline int skb_bond_should_drop(struct sk_buff *skb,
struct net_device *master)
{
- if (master) {
- struct net_device *dev = skb->dev;
-
- if (master->priv_flags & IFF_MASTER_ARPMON)
- dev->last_rx = jiffies;
-
- if ((master->priv_flags & IFF_MASTER_ALB) && master->br_port) {
- /* Do address unmangle. The local destination address
- * will be always the one master has. Provides the right
- * functionality in a bridge.
- */
- skb_bond_set_mac_by_master(skb, master);
- }
-
- if (dev->priv_flags & IFF_SLAVE_INACTIVE) {
- if ((dev->priv_flags & IFF_SLAVE_NEEDARP) &&
- skb->protocol == __cpu_to_be16(ETH_P_ARP))
- return 0;
-
- if (master->priv_flags & IFF_MASTER_ALB) {
- if (skb->pkt_type != PACKET_BROADCAST &&
- skb->pkt_type != PACKET_MULTICAST)
- return 0;
- }
- if (master->priv_flags & IFF_MASTER_8023AD &&
- skb->protocol == __cpu_to_be16(ETH_P_SLOW))
- return 0;
-
- return 1;
- }
- }
+ if (master)
+ return __skb_bond_should_drop(skb, master);
return 0;
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-15 09:24:48 +0000