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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
* Copyright (c) 2006 QLogic, Inc. All rights reserved.
* Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _IPATH_LAYER_H
#define _IPATH_LAYER_H
/*
* This header file is for symbols shared between the infinipath driver
* and drivers layered upon it (such as ipath).
*/
struct sk_buff;
struct ipath_sge_state;
struct ipath_devdata;
struct ether_header;
struct ipath_layer_counters {
u64 symbol_error_counter;
u64 link_error_recovery_counter;
u64 link_downed_counter;
u64 port_rcv_errors;
u64 port_rcv_remphys_errors;
u64 port_xmit_discards;
u64 port_xmit_data;
u64 port_rcv_data;
u64 port_xmit_packets;
u64 port_rcv_packets;
u32 local_link_integrity_errors;
u32 excessive_buffer_overrun_errors;
};
/*
* A segment is a linear region of low physical memory.
* XXX Maybe we should use phys addr here and kmap()/kunmap().
* Used by the verbs layer.
*/
struct ipath_seg {
void *vaddr;
size_t length;
};
/* The number of ipath_segs that fit in a page. */
#define IPATH_SEGSZ (PAGE_SIZE / sizeof (struct ipath_seg))
struct ipath_segarray {
struct ipath_seg segs[IPATH_SEGSZ];
};
struct ipath_mregion {
u64 user_base; /* User's address for this region */
u64 iova; /* IB start address of this region */
size_t length;
u32 lkey;
u32 offset; /* offset (bytes) to start of region */
int access_flags;
u32 max_segs; /* number of ipath_segs in all the arrays */
u32 mapsz; /* size of the map array */
struct ipath_segarray *map[0]; /* the segments */
};
/*
* These keep track of the copy progress within a memory region.
* Used by the verbs layer.
*/
struct ipath_sge {
struct ipath_mregion *mr;
void *vaddr; /* current pointer into the segment */
u32 sge_length; /* length of the SGE */
u32 length; /* remaining length of the segment */
u16 m; /* current index: mr->map[m] */
u16 n; /* current index: mr->map[m]->segs[n] */
};
struct ipath_sge_state {
struct ipath_sge *sg_list; /* next SGE to be used if any */
struct ipath_sge sge; /* progress state for the current SGE */
u8 num_sge;
};
int ipath_layer_register(void *(*l_add)(int, struct ipath_devdata *),
void (*l_remove)(void *),
int (*l_intr)(void *, u32),
int (*l_rcv)(void *, void *,
struct sk_buff *),
u16 rcv_opcode,
int (*l_rcv_lid)(void *, void *));
int ipath_verbs_register(void *(*l_add)(int, struct ipath_devdata *),
void (*l_remove)(void *arg),
int (*l_piobufavail)(void *arg),
void (*l_rcv)(void *arg, void *rhdr,
void *data, u32 tlen),
void (*l_timer_cb)(void *arg));
void ipath_layer_unregister(void);
void ipath_verbs_unregister(void);
int ipath_layer_open(struct ipath_devdata *, u32 * pktmax);
u16 ipath_layer_get_lid(struct ipath_devdata *dd);
int ipath_layer_get_mac(struct ipath_devdata *dd, u8 *);
u16 ipath_layer_get_bcast(struct ipath_devdata *dd);
u32 ipath_layer_get_cr_errpkey(struct ipath_devdata *dd);
int ipath_layer_set_linkstate(struct ipath_devdata *dd, u8 state);
int ipath_layer_set_mtu(struct ipath_devdata *, u16);
int ipath_set_lid(struct ipath_devdata *, u32, u8);
int ipath_layer_send_hdr(struct ipath_devdata *dd,
struct ether_header *hdr);
int ipath_verbs_send(struct ipath_devdata *dd, u32 hdrwords,
u32 * hdr, u32 len, struct ipath_sge_state *ss);
int ipath_layer_set_piointbufavail_int(struct ipath_devdata *dd);
int ipath_layer_get_boardname(struct ipath_devdata *dd, char *name,
size_t namelen);
int ipath_layer_snapshot_counters(struct ipath_devdata *dd, u64 *swords,
u64 *rwords, u64 *spkts, u64 *rpkts,
u64 *xmit_wait);
int ipath_layer_get_counters(struct ipath_devdata *dd,
struct ipath_layer_counters *cntrs);
int ipath_layer_want_buffer(struct ipath_devdata *dd);
int ipath_layer_set_guid(struct ipath_devdata *, __be64 guid);
__be64 ipath_layer_get_guid(struct ipath_devdata *);
u32 ipath_layer_get_nguid(struct ipath_devdata *);
u32 ipath_layer_get_majrev(struct ipath_devdata *);
u32 ipath_layer_get_minrev(struct ipath_devdata *);
u32 ipath_layer_get_pcirev(struct ipath_devdata *);
u32 ipath_layer_get_flags(struct ipath_devdata *dd);
struct device *ipath_layer_get_device(struct ipath_devdata *dd);
u16 ipath_layer_get_deviceid(struct ipath_devdata *dd);
u32 ipath_layer_get_vendorid(struct ipath_devdata *);
u64 ipath_layer_get_lastibcstat(struct ipath_devdata *dd);
u32 ipath_layer_get_ibmtu(struct ipath_devdata *dd);
int ipath_layer_enable_timer(struct ipath_devdata *dd);
int ipath_layer_disable_timer(struct ipath_devdata *dd);
int ipath_layer_set_verbs_flags(struct ipath_devdata *dd, unsigned flags);
unsigned ipath_layer_get_npkeys(struct ipath_devdata *dd);
unsigned ipath_layer_get_pkey(struct ipath_devdata *dd, unsigned index);
int ipath_layer_get_pkeys(struct ipath_devdata *dd, u16 *pkeys);
int ipath_layer_set_pkeys(struct ipath_devdata *dd, u16 *pkeys);
int ipath_layer_get_linkdowndefaultstate(struct ipath_devdata *dd);
int ipath_layer_set_linkdowndefaultstate(struct ipath_devdata *dd,
int sleep);
int ipath_layer_get_phyerrthreshold(struct ipath_devdata *dd);
int ipath_layer_set_phyerrthreshold(struct ipath_devdata *dd, unsigned n);
int ipath_layer_get_overrunthreshold(struct ipath_devdata *dd);
int ipath_layer_set_overrunthreshold(struct ipath_devdata *dd, unsigned n);
u32 ipath_layer_get_rcvhdrentsize(struct ipath_devdata *dd);
/* ipath_ether interrupt values */
#define IPATH_LAYER_INT_IF_UP 0x2
#define IPATH_LAYER_INT_IF_DOWN 0x4
#define IPATH_LAYER_INT_LID 0x8
#define IPATH_LAYER_INT_SEND_CONTINUE 0x10
#define IPATH_LAYER_INT_BCAST 0x40
/* _verbs_layer.l_flags */
#define IPATH_VERBS_KERNEL_SMA 0x1
extern unsigned ipath_debug; /* debugging bit mask */
#endif /* _IPATH_LAYER_H */
|
