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Diffstat (limited to 'include/linux/netdevice.h')
-rw-r--r--include/linux/netdevice.h98
1 files changed, 47 insertions, 51 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 78181a889..da4b33bea 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -106,7 +106,6 @@ enum netdev_tx {
__NETDEV_TX_MIN = INT_MIN, /* make sure enum is signed */
NETDEV_TX_OK = 0x00, /* driver took care of packet */
NETDEV_TX_BUSY = 0x10, /* driver tx path was busy*/
- NETDEV_TX_LOCKED = 0x20, /* driver tx lock was already taken */
};
typedef enum netdev_tx netdev_tx_t;
@@ -570,28 +569,27 @@ struct netdev_queue {
#if defined(CONFIG_XPS) && defined(CONFIG_NUMA)
int numa_node;
#endif
+ unsigned long tx_maxrate;
+ /*
+ * Number of TX timeouts for this queue
+ * (/sys/class/net/DEV/Q/trans_timeout)
+ */
+ unsigned long trans_timeout;
/*
* write-mostly part
*/
spinlock_t _xmit_lock ____cacheline_aligned_in_smp;
int xmit_lock_owner;
/*
- * please use this field instead of dev->trans_start
+ * Time (in jiffies) of last Tx
*/
unsigned long trans_start;
- /*
- * Number of TX timeouts for this queue
- * (/sys/class/net/DEV/Q/trans_timeout)
- */
- unsigned long trans_timeout;
-
unsigned long state;
#ifdef CONFIG_BQL
struct dql dql;
#endif
- unsigned long tx_maxrate;
} ____cacheline_aligned_in_smp;
static inline int netdev_queue_numa_node_read(const struct netdev_queue *q)
@@ -831,7 +829,6 @@ struct tc_to_netdev {
* the queue before that can happen; it's for obsolete devices and weird
* corner cases, but the stack really does a non-trivial amount
* of useless work if you return NETDEV_TX_BUSY.
- * (can also return NETDEV_TX_LOCKED iff NETIF_F_LLTX)
* Required; cannot be NULL.
*
* netdev_features_t (*ndo_fix_features)(struct net_device *dev,
@@ -1548,7 +1545,6 @@ enum netdev_priv_flags {
*
* @offload_fwd_mark: Offload device fwding mark
*
- * @trans_start: Time (in jiffies) of last Tx
* @watchdog_timeo: Represents the timeout that is used by
* the watchdog (see dev_watchdog())
* @watchdog_timer: List of timers
@@ -1586,8 +1582,6 @@ enum netdev_priv_flags {
* @gso_max_size: Maximum size of generic segmentation offload
* @gso_max_segs: Maximum number of segments that can be passed to the
* NIC for GSO
- * @gso_min_segs: Minimum number of segments that can be passed to the
- * NIC for GSO
*
* @dcbnl_ops: Data Center Bridging netlink ops
* @num_tc: Number of traffic classes in the net device
@@ -1656,6 +1650,7 @@ struct net_device {
netdev_features_t vlan_features;
netdev_features_t hw_enc_features;
netdev_features_t mpls_features;
+ netdev_features_t gso_partial_features;
int ifindex;
int group;
@@ -1798,13 +1793,6 @@ struct net_device {
#endif
/* These may be needed for future network-power-down code. */
-
- /*
- * trans_start here is expensive for high speed devices on SMP,
- * please use netdev_queue->trans_start instead.
- */
- unsigned long trans_start;
-
struct timer_list watchdog_timer;
int __percpu *pcpu_refcnt;
@@ -1858,7 +1846,7 @@ struct net_device {
unsigned int gso_max_size;
#define GSO_MAX_SEGS 65535
u16 gso_max_segs;
- u16 gso_min_segs;
+
#ifdef CONFIG_DCB
const struct dcbnl_rtnl_ops *dcbnl_ops;
#endif
@@ -2123,7 +2111,10 @@ struct napi_gro_cb {
/* Used in GRE, set in fou/gue_gro_receive */
u8 is_fou:1;
- /* 6 bit hole */
+ /* Used to determine if flush_id can be ignored */
+ u8 is_atomic:1;
+
+ /* 5 bit hole */
/* used to support CHECKSUM_COMPLETE for tunneling protocols */
__wsum csum;
@@ -2162,26 +2153,6 @@ struct packet_offload {
struct list_head list;
};
-struct udp_offload;
-
-/* 'skb->encapsulation' is set before gro_complete() is called. gro_complete()
- * must set 'skb->inner_mac_header' to the beginning of tunnel payload.
- */
-struct udp_offload_callbacks {
- struct sk_buff **(*gro_receive)(struct sk_buff **head,
- struct sk_buff *skb,
- struct udp_offload *uoff);
- int (*gro_complete)(struct sk_buff *skb,
- int nhoff,
- struct udp_offload *uoff);
-};
-
-struct udp_offload {
- __be16 port;
- u8 ipproto;
- struct udp_offload_callbacks callbacks;
-};
-
/* often modified stats are per-CPU, other are shared (netdev->stats) */
struct pcpu_sw_netstats {
u64 rx_packets;
@@ -2262,6 +2233,8 @@ struct netdev_lag_lower_state_info {
#define NETDEV_BONDING_INFO 0x0019
#define NETDEV_PRECHANGEUPPER 0x001A
#define NETDEV_CHANGELOWERSTATE 0x001B
+#define NETDEV_OFFLOAD_PUSH_VXLAN 0x001C
+#define NETDEV_OFFLOAD_PUSH_GENEVE 0x001D
int register_netdevice_notifier(struct notifier_block *nb);
int unregister_netdevice_notifier(struct notifier_block *nb);
@@ -2753,7 +2726,6 @@ struct softnet_data {
/* 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;
@@ -2766,11 +2738,15 @@ struct softnet_data {
struct sk_buff *completion_queue;
#ifdef CONFIG_RPS
- /* Elements below can be accessed between CPUs for RPS */
+ /* input_queue_head should be written by cpu owning this struct,
+ * and only read by other cpus. Worth using a cache line.
+ */
+ unsigned int input_queue_head ____cacheline_aligned_in_smp;
+
+ /* Elements below can be accessed between CPUs for RPS/RFS */
struct call_single_data csd ____cacheline_aligned_in_smp;
struct softnet_data *rps_ipi_next;
unsigned int cpu;
- unsigned int input_queue_head;
unsigned int input_queue_tail;
#endif
unsigned int dropped;
@@ -2807,7 +2783,7 @@ static inline void netif_tx_schedule_all(struct net_device *dev)
netif_schedule_queue(netdev_get_tx_queue(dev, i));
}
-static inline void netif_tx_start_queue(struct netdev_queue *dev_queue)
+static __always_inline void netif_tx_start_queue(struct netdev_queue *dev_queue)
{
clear_bit(__QUEUE_STATE_DRV_XOFF, &dev_queue->state);
}
@@ -2857,7 +2833,7 @@ static inline void netif_tx_wake_all_queues(struct net_device *dev)
}
}
-static inline void netif_tx_stop_queue(struct netdev_queue *dev_queue)
+static __always_inline void netif_tx_stop_queue(struct netdev_queue *dev_queue)
{
set_bit(__QUEUE_STATE_DRV_XOFF, &dev_queue->state);
}
@@ -3279,7 +3255,10 @@ struct sk_buff *dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
struct netdev_queue *txq, int *ret);
int __dev_forward_skb(struct net_device *dev, struct sk_buff *skb);
int dev_forward_skb(struct net_device *dev, struct sk_buff *skb);
-bool is_skb_forwardable(struct net_device *dev, struct sk_buff *skb);
+bool is_skb_forwardable(const struct net_device *dev,
+ const struct sk_buff *skb);
+
+void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev);
extern int netdev_budget;
@@ -3496,6 +3475,15 @@ static inline void txq_trans_update(struct netdev_queue *txq)
txq->trans_start = jiffies;
}
+/* legacy drivers only, netdev_start_xmit() sets txq->trans_start */
+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;
+}
+
/**
* netif_tx_lock - grab network device transmit lock
* @dev: network device
@@ -3771,7 +3759,6 @@ void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64,
extern int netdev_max_backlog;
extern int netdev_tstamp_prequeue;
extern int weight_p;
-extern int bpf_jit_enable;
bool netdev_has_upper_dev(struct net_device *dev, struct net_device *upper_dev);
struct net_device *netdev_upper_get_next_dev_rcu(struct net_device *dev,
@@ -4014,14 +4001,16 @@ static inline bool net_gso_ok(netdev_features_t features, int gso_type)
BUILD_BUG_ON(SKB_GSO_UDP != (NETIF_F_UFO >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_DODGY != (NETIF_F_GSO_ROBUST >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_TCP_ECN != (NETIF_F_TSO_ECN >> NETIF_F_GSO_SHIFT));
+ BUILD_BUG_ON(SKB_GSO_TCP_FIXEDID != (NETIF_F_TSO_MANGLEID >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_TCPV6 != (NETIF_F_TSO6 >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_FCOE != (NETIF_F_FSO >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_GRE != (NETIF_F_GSO_GRE >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_GRE_CSUM != (NETIF_F_GSO_GRE_CSUM >> NETIF_F_GSO_SHIFT));
- BUILD_BUG_ON(SKB_GSO_IPIP != (NETIF_F_GSO_IPIP >> NETIF_F_GSO_SHIFT));
- BUILD_BUG_ON(SKB_GSO_SIT != (NETIF_F_GSO_SIT >> NETIF_F_GSO_SHIFT));
+ BUILD_BUG_ON(SKB_GSO_IPXIP4 != (NETIF_F_GSO_IPXIP4 >> NETIF_F_GSO_SHIFT));
+ BUILD_BUG_ON(SKB_GSO_IPXIP6 != (NETIF_F_GSO_IPXIP6 >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_UDP_TUNNEL != (NETIF_F_GSO_UDP_TUNNEL >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_UDP_TUNNEL_CSUM != (NETIF_F_GSO_UDP_TUNNEL_CSUM >> NETIF_F_GSO_SHIFT));
+ BUILD_BUG_ON(SKB_GSO_PARTIAL != (NETIF_F_GSO_PARTIAL >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_TUNNEL_REMCSUM != (NETIF_F_GSO_TUNNEL_REMCSUM >> NETIF_F_GSO_SHIFT));
return (features & feature) == feature;
@@ -4156,6 +4145,13 @@ static inline void netif_keep_dst(struct net_device *dev)
dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM);
}
+/* return true if dev can't cope with mtu frames that need vlan tag insertion */
+static inline bool netif_reduces_vlan_mtu(struct net_device *dev)
+{
+ /* TODO: reserve and use an additional IFF bit, if we get more users */
+ return dev->priv_flags & IFF_MACSEC;
+}
+
extern struct pernet_operations __net_initdata loopback_net_ops;
/* Logging, debugging and troubleshooting/diagnostic helpers. */
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-18 03:49:18 +0000