projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| e018ba1f | 2 | * linux/drivers/s390/net/qeth_eddp.h |
| 1da177e4 | 3 | * |
| e018ba1f | 4 | * Header file for qeth enhanced device driver packing. |
| 1da177e4 LT |
5 | * |
| 6 | * Copyright 2004 IBM Corporation | |
| 7 | * | |
| 8 | * Author(s): Thomas Spatzier <tspat@de.ibm.com> | |
| 9 | * | |
| 1da177e4 LT |
10 | */ |
| 11 | #ifndef __QETH_EDDP_H__ | |
| 12 | #define __QETH_EDDP_H__ | |
| 13 | ||
| 14 | struct qeth_eddp_element { | |
| 15 | u32 flags; | |
| 16 | u32 length; | |
| 17 | void *addr; | |
| 18 | }; | |
| 19 | ||
| 20 | struct qeth_eddp_context { | |
| 21 | atomic_t refcnt; | |
| 22 | enum qeth_large_send_types type; | |
| 23 | int num_pages; /* # of allocated pages */ | |
| 24 | u8 **pages; /* pointers to pages */ | |
| 25 | int offset; /* offset in ctx during creation */ | |
| 26 | int num_elements; /* # of required 'SBALEs' */ | |
| 27 | struct qeth_eddp_element *elements; /* array of 'SBALEs' */ | |
| 28 | int elements_per_skb; /* # of 'SBALEs' per skb **/ | |
| 29 | }; | |
| 30 | ||
| 31 | struct qeth_eddp_context_reference { | |
| 32 | struct list_head list; | |
| 33 | struct qeth_eddp_context *ctx; | |
| 34 | }; | |
| 35 | ||
| 36 | extern struct qeth_eddp_context * | |
| a4c48a26 UB |
37 | qeth_eddp_create_context(struct qeth_card *,struct sk_buff *, |
| 38 | struct qeth_hdr *, unsigned char); | |
| 1da177e4 LT |
39 | |
| 40 | extern void | |
| 41 | qeth_eddp_put_context(struct qeth_eddp_context *); | |
| 42 | ||
| 43 | extern int | |
| 44 | qeth_eddp_fill_buffer(struct qeth_qdio_out_q *,struct qeth_eddp_context *,int); | |
| 45 | ||
| 46 | extern void | |
| 47 | qeth_eddp_buf_release_contexts(struct qeth_qdio_out_buffer *); | |
| 48 | ||
| 49 | extern int | |
| 50 | qeth_eddp_check_buffers_for_context(struct qeth_qdio_out_q *, | |
| 51 | struct qeth_eddp_context *); | |
| 52 | /* | |
| 53 | * Data used for fragmenting a IP packet. | |
| 54 | */ | |
| 55 | struct qeth_eddp_data { | |
| 56 | struct qeth_hdr qh; | |
| 57 | struct ethhdr mac; | |
| 5a5a852e | 58 | __be16 vlan[2]; |
| 1da177e4 LT |
59 | union { |
| 60 | struct { | |
| 61 | struct iphdr h; | |
| 62 | u8 options[40]; | |
| 63 | } ip4; | |
| 64 | struct { | |
| 65 | struct ipv6hdr h; | |
| 66 | } ip6; | |
| 67 | } nh; | |
| 68 | u8 nhl; | |
| 69 | void *nh_in_ctx; /* address of nh within the ctx */ | |
| 70 | union { | |
| 71 | struct { | |
| 72 | struct tcphdr h; | |
| 73 | u8 options[40]; | |
| 74 | } tcp; | |
| 75 | } th; | |
| 76 | u8 thl; | |
| 77 | void *th_in_ctx; /* address of th within the ctx */ | |
| 78 | struct sk_buff *skb; | |
| 79 | int skb_offset; | |
| 80 | int frag; | |
| 81 | int frag_offset; | |
| 82 | } __attribute__ ((packed)); | |
| 83 | ||
| 84 | #endif /* __QETH_EDDP_H__ */ |