blob: e1b51860bc57b803258e8c3627b7af371b93d849 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/*
* linux/drivers/s390/net/qeth_eddp.c ($Revision: 1.5 $)
*
* Header file for qeth enhanced device driver pakcing.
*
* Copyright 2004 IBM Corporation
*
* Author(s): Thomas Spatzier <tspat@de.ibm.com>
*
* $Revision: 1.5 $ $Date: 2005/03/24 09:04:18 $
*
*/
#ifndef __QETH_EDDP_H__
#define __QETH_EDDP_H__
struct qeth_eddp_element {
u32 flags;
u32 length;
void *addr;
};
struct qeth_eddp_context {
atomic_t refcnt;
enum qeth_large_send_types type;
int num_pages; /* # of allocated pages */
u8 **pages; /* pointers to pages */
int offset; /* offset in ctx during creation */
int num_elements; /* # of required 'SBALEs' */
struct qeth_eddp_element *elements; /* array of 'SBALEs' */
int elements_per_skb; /* # of 'SBALEs' per skb **/
};
struct qeth_eddp_context_reference {
struct list_head list;
struct qeth_eddp_context *ctx;
};
extern struct qeth_eddp_context *
qeth_eddp_create_context(struct qeth_card *,struct sk_buff *,struct qeth_hdr *);
extern void
qeth_eddp_put_context(struct qeth_eddp_context *);
extern int
qeth_eddp_fill_buffer(struct qeth_qdio_out_q *,struct qeth_eddp_context *,int);
extern void
qeth_eddp_buf_release_contexts(struct qeth_qdio_out_buffer *);
extern int
qeth_eddp_check_buffers_for_context(struct qeth_qdio_out_q *,
struct qeth_eddp_context *);
/*
* Data used for fragmenting a IP packet.
*/
struct qeth_eddp_data {
struct qeth_hdr qh;
struct ethhdr mac;
u16 vlan[2];
union {
struct {
struct iphdr h;
u8 options[40];
} ip4;
struct {
struct ipv6hdr h;
} ip6;
} nh;
u8 nhl;
void *nh_in_ctx; /* address of nh within the ctx */
union {
struct {
struct tcphdr h;
u8 options[40];
} tcp;
} th;
u8 thl;
void *th_in_ctx; /* address of th within the ctx */
struct sk_buff *skb;
int skb_offset;
int frag;
int frag_offset;
} __attribute__ ((packed));
#endif /* __QETH_EDDP_H__ */
|
