diff options
Diffstat (limited to 'net/packet')
| -rw-r--r-- | net/packet/af_packet.c | 99 | ||||
| -rw-r--r-- | net/packet/internal.h | 103 |
2 files changed, 105 insertions, 97 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index ceaca7c134a0..8a1605ae4029 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -93,6 +93,8 @@ #include <net/inet_common.h> #endif +#include "internal.h" + /* Assumptions: - if device has no dev->hard_header routine, it adds and removes ll header @@ -146,14 +148,6 @@ dev->hard_header == NULL (ll header is added by device, we cannot control it) /* Private packet socket structures. */ -struct packet_mclist { - struct packet_mclist *next; - int ifindex; - int count; - unsigned short type; - unsigned short alen; - unsigned char addr[MAX_ADDR_LEN]; -}; /* identical to struct packet_mreq except it has * a longer address field. */ @@ -175,63 +169,7 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u, #define BLK_PLUS_PRIV(sz_of_priv) \ (BLK_HDR_LEN + ALIGN((sz_of_priv), V3_ALIGNMENT)) -/* kbdq - kernel block descriptor queue */ -struct tpacket_kbdq_core { - struct pgv *pkbdq; - unsigned int feature_req_word; - unsigned int hdrlen; - unsigned char reset_pending_on_curr_blk; - unsigned char delete_blk_timer; - unsigned short kactive_blk_num; - unsigned short blk_sizeof_priv; - - /* last_kactive_blk_num: - * trick to see if user-space has caught up - * in order to avoid refreshing timer when every single pkt arrives. - */ - unsigned short last_kactive_blk_num; - - char *pkblk_start; - char *pkblk_end; - int kblk_size; - unsigned int knum_blocks; - uint64_t knxt_seq_num; - char *prev; - char *nxt_offset; - struct sk_buff *skb; - - atomic_t blk_fill_in_prog; - - /* Default is set to 8ms */ -#define DEFAULT_PRB_RETIRE_TOV (8) - - unsigned short retire_blk_tov; - unsigned short version; - unsigned long tov_in_jiffies; - - /* timer to retire an outstanding block */ - struct timer_list retire_blk_timer; -}; - #define PGV_FROM_VMALLOC 1 -struct pgv { - char *buffer; -}; - -struct packet_ring_buffer { - struct pgv *pg_vec; - unsigned int head; - unsigned int frames_per_block; - unsigned int frame_size; - unsigned int frame_max; - - unsigned int pg_vec_order; - unsigned int pg_vec_pages; - unsigned int pg_vec_len; - - struct tpacket_kbdq_core prb_bdqc; - atomic_t pending; -}; #define BLOCK_STATUS(x) ((x)->hdr.bh1.block_status) #define BLOCK_NUM_PKTS(x) ((x)->hdr.bh1.num_pkts) @@ -269,34 +207,6 @@ static void prb_fill_vlan_info(struct tpacket_kbdq_core *, struct tpacket3_hdr *); static void packet_flush_mclist(struct sock *sk); -struct packet_fanout; -struct packet_sock { - /* struct sock has to be the first member of packet_sock */ - struct sock sk; - struct packet_fanout *fanout; - struct tpacket_stats stats; - union tpacket_stats_u stats_u; - struct packet_ring_buffer rx_ring; - struct packet_ring_buffer tx_ring; - int copy_thresh; - spinlock_t bind_lock; - struct mutex pg_vec_lock; - unsigned int running:1, /* prot_hook is attached*/ - auxdata:1, - origdev:1, - has_vnet_hdr:1; - int ifindex; /* bound device */ - __be16 num; - struct packet_mclist *mclist; - atomic_t mapped; - enum tpacket_versions tp_version; - unsigned int tp_hdrlen; - unsigned int tp_reserve; - unsigned int tp_loss:1; - unsigned int tp_tstamp; - struct packet_type prot_hook ____cacheline_aligned_in_smp; -}; - #define PACKET_FANOUT_MAX 256 struct packet_fanout { @@ -334,11 +244,6 @@ struct packet_skb_cb { (((x)->kactive_blk_num < ((x)->knum_blocks-1)) ? \ ((x)->kactive_blk_num+1) : 0) -static struct packet_sock *pkt_sk(struct sock *sk) -{ - return (struct packet_sock *)sk; -} - static void __fanout_unlink(struct sock *sk, struct packet_sock *po); static void __fanout_link(struct sock *sk, struct packet_sock *po); diff --git a/net/packet/internal.h b/net/packet/internal.h new file mode 100644 index 000000000000..2c5fca28b242 --- /dev/null +++ b/net/packet/internal.h @@ -0,0 +1,103 @@ +#ifndef __PACKET_INTERNAL_H__ +#define __PACKET_INTERNAL_H__ + +struct packet_mclist { + struct packet_mclist *next; + int ifindex; + int count; + unsigned short type; + unsigned short alen; + unsigned char addr[MAX_ADDR_LEN]; +}; + +/* kbdq - kernel block descriptor queue */ +struct tpacket_kbdq_core { + struct pgv *pkbdq; + unsigned int feature_req_word; + unsigned int hdrlen; + unsigned char reset_pending_on_curr_blk; + unsigned char delete_blk_timer; + unsigned short kactive_blk_num; + unsigned short blk_sizeof_priv; + + /* last_kactive_blk_num: + * trick to see if user-space has caught up + * in order to avoid refreshing timer when every single pkt arrives. + */ + unsigned short last_kactive_blk_num; + + char *pkblk_start; + char *pkblk_end; + int kblk_size; + unsigned int knum_blocks; + uint64_t knxt_seq_num; + char *prev; + char *nxt_offset; + struct sk_buff *skb; + + atomic_t blk_fill_in_prog; + + /* Default is set to 8ms */ +#define DEFAULT_PRB_RETIRE_TOV (8) + + unsigned short retire_blk_tov; + unsigned short version; + unsigned long tov_in_jiffies; + + /* timer to retire an outstanding block */ + struct timer_list retire_blk_timer; +}; + +struct pgv { + char *buffer; +}; + +struct packet_ring_buffer { + struct pgv *pg_vec; + unsigned int head; + unsigned int frames_per_block; + unsigned int frame_size; + unsigned int frame_max; + + unsigned int pg_vec_order; + unsigned int pg_vec_pages; + unsigned int pg_vec_len; + + struct tpacket_kbdq_core prb_bdqc; + atomic_t pending; +}; + +struct packet_fanout; +struct packet_sock { + /* struct sock has to be the first member of packet_sock */ + struct sock sk; + struct packet_fanout *fanout; + struct tpacket_stats stats; + union tpacket_stats_u stats_u; + struct packet_ring_buffer rx_ring; + struct packet_ring_buffer tx_ring; + int copy_thresh; + spinlock_t bind_lock; + struct mutex pg_vec_lock; + unsigned int running:1, /* prot_hook is attached*/ + auxdata:1, + origdev:1, + has_vnet_hdr:1; + int ifindex; /* bound device */ + __be16 num; + struct packet_mclist *mclist; + atomic_t mapped; + enum tpacket_versions tp_version; + unsigned int tp_hdrlen; + unsigned int tp_reserve; + unsigned int tp_loss:1; + unsigned int tp_tstamp; + struct packet_type prot_hook ____cacheline_aligned_in_smp; +}; + +static struct packet_sock *pkt_sk(struct sock *sk) +{ + return (struct packet_sock *)sk; +} + +#endif |