Blame - net/packet/internal.h - kernel/msm-4.19

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Pavel Emelyanov	2787b04	2012-08-13 05:49:39 +0000	[diff] [blame]	1	#ifndef __PACKET_INTERNAL_H__
				2	#define __PACKET_INTERNAL_H__
				3
				4	struct packet_mclist {
				5	struct packet_mclist *next;
				6	int ifindex;
				7	int count;
				8	unsigned short type;
				9	unsigned short alen;
				10	unsigned char addr[MAX_ADDR_LEN];
				11	};
				12
				13	/* kbdq - kernel block descriptor queue */
				14	struct tpacket_kbdq_core {
				15	struct pgv *pkbdq;
				16	unsigned int feature_req_word;
				17	unsigned int hdrlen;
				18	unsigned char reset_pending_on_curr_blk;
				19	unsigned char delete_blk_timer;
				20	unsigned short kactive_blk_num;
				21	unsigned short blk_sizeof_priv;
				22
				23	/* last_kactive_blk_num:
				24	* trick to see if user-space has caught up
				25	* in order to avoid refreshing timer when every single pkt arrives.
				26	*/
				27	unsigned short last_kactive_blk_num;
				28
				29	char *pkblk_start;
				30	char *pkblk_end;
				31	int kblk_size;
				32	unsigned int knum_blocks;
				33	uint64_t knxt_seq_num;
				34	char *prev;
				35	char *nxt_offset;
				36	struct sk_buff *skb;
				37
				38	atomic_t blk_fill_in_prog;
				39
				40	/* Default is set to 8ms */
				41	#define DEFAULT_PRB_RETIRE_TOV (8)
				42
				43	unsigned short retire_blk_tov;
				44	unsigned short version;
				45	unsigned long tov_in_jiffies;
				46
				47	/* timer to retire an outstanding block */
				48	struct timer_list retire_blk_timer;
				49	};
				50
				51	struct pgv {
				52	char *buffer;
				53	};
				54
				55	struct packet_ring_buffer {
				56	struct pgv *pg_vec;
Daniel Borkmann	0578edc	2013-04-19 06:12:28 +0000	[diff] [blame]	57
Pavel Emelyanov	2787b04	2012-08-13 05:49:39 +0000	[diff] [blame]	58	unsigned int head;
				59	unsigned int frames_per_block;
				60	unsigned int frame_size;
				61	unsigned int frame_max;
				62
				63	unsigned int pg_vec_order;
				64	unsigned int pg_vec_pages;
				65	unsigned int pg_vec_len;
				66
Pavel Emelyanov	2787b04	2012-08-13 05:49:39 +0000	[diff] [blame]	67	atomic_t pending;
Daniel Borkmann	0578edc	2013-04-19 06:12:28 +0000	[diff] [blame]	68
				69	struct tpacket_kbdq_core prb_bdqc;
Pavel Emelyanov	2787b04	2012-08-13 05:49:39 +0000	[diff] [blame]	70	};
				71
Pavel Emelyanov	fff3321	2012-08-16 05:36:48 +0000	[diff] [blame]	72	extern struct mutex fanout_mutex;
				73	#define PACKET_FANOUT_MAX 256
				74
				75	struct packet_fanout {
				76	#ifdef CONFIG_NET_NS
				77	struct net *net;
				78	#endif
				79	unsigned int num_members;
				80	u16 id;
				81	u8 type;
Willem de Bruijn	77f65eb	2013-03-19 10:18:11 +0000	[diff] [blame]	82	u8 flags;
Pavel Emelyanov	fff3321	2012-08-16 05:36:48 +0000	[diff] [blame]	83	atomic_t rr_cur;
				84	struct list_head list;
				85	struct sock *arr[PACKET_FANOUT_MAX];
Willem de Bruijn	77f65eb	2013-03-19 10:18:11 +0000	[diff] [blame]	86	int next[PACKET_FANOUT_MAX];
Pavel Emelyanov	fff3321	2012-08-16 05:36:48 +0000	[diff] [blame]	87	spinlock_t lock;
				88	atomic_t sk_ref;
				89	struct packet_type prot_hook ____cacheline_aligned_in_smp;
				90	};
				91
Pavel Emelyanov	2787b04	2012-08-13 05:49:39 +0000	[diff] [blame]	92	struct packet_sock {
				93	/* struct sock has to be the first member of packet_sock */
				94	struct sock sk;
				95	struct packet_fanout *fanout;
Daniel Borkmann	ee80fbf	2013-04-19 06:12:29 +0000	[diff] [blame]	96	union tpacket_stats_u stats;
Pavel Emelyanov	2787b04	2012-08-13 05:49:39 +0000	[diff] [blame]	97	struct packet_ring_buffer rx_ring;
				98	struct packet_ring_buffer tx_ring;
				99	int copy_thresh;
				100	spinlock_t bind_lock;
				101	struct mutex pg_vec_lock;
				102	unsigned int running:1, /* prot_hook is attached*/
				103	auxdata:1,
				104	origdev:1,
				105	has_vnet_hdr:1;
				106	int ifindex; /* bound device */
				107	__be16 num;
				108	struct packet_mclist *mclist;
				109	atomic_t mapped;
				110	enum tpacket_versions tp_version;
				111	unsigned int tp_hdrlen;
				112	unsigned int tp_reserve;
				113	unsigned int tp_loss:1;
Paul Chavent	5920cd3a	2012-11-06 23:10:47 +0000	[diff] [blame]	114	unsigned int tp_tx_has_off:1;
Pavel Emelyanov	2787b04	2012-08-13 05:49:39 +0000	[diff] [blame]	115	unsigned int tp_tstamp;
				116	struct packet_type prot_hook ____cacheline_aligned_in_smp;
				117	};
				118
				119	static struct packet_sock pkt_sk(struct sock sk)
				120	{
				121	return (struct packet_sock *)sk;
				122	}
				123
				124	#endif