blob: 80adee5b0ce32c9bb65c98acc4dc80055623a909 (
plain) (
blame)
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
|
#ifndef _GPXE_IPOIB_H
#define _GPXE_IPOIB_H
/** @file
*
* IP over Infiniband
*/
#include <gpxe/infiniband.h>
/** IPoIB packet length */
#define IPOIB_PKT_LEN 2048
/** IPoIB MAC address length */
#define IPOIB_ALEN 20
/** An IPoIB MAC address */
struct ipoib_mac {
/** Queue pair number
*
* MSB must be zero; QPNs are only 24-bit.
*/
uint32_t qpn;
/** Port GID */
struct ib_gid gid;
} __attribute__ (( packed ));
/** IPoIB link-layer header length */
#define IPOIB_HLEN 4
/** IPoIB link-layer header */
struct ipoib_hdr {
/** Network-layer protocol */
uint16_t proto;
/** Reserved, must be zero */
union {
/** Reserved, must be zero */
uint16_t reserved;
/** Peer addresses
*
* We use these fields internally to represent the
* peer addresses using a lookup key. There simply
* isn't enough room in the IPoIB header to store
* literal source or destination MAC addresses.
*/
struct {
/** Destination address key */
uint8_t dest;
/** Source address key */
uint8_t src;
} __attribute__ (( packed )) peer;
} __attribute__ (( packed )) u;
} __attribute__ (( packed ));
extern struct ll_protocol ipoib_protocol;
extern const char * ipoib_ntoa ( const void *ll_addr );
/**
* Allocate IPoIB device
*
* @v priv_size Size of driver private data
* @ret netdev Network device, or NULL
*/
static inline struct net_device * alloc_ipoibdev ( size_t priv_size ) {
struct net_device *netdev;
netdev = alloc_netdev ( priv_size );
if ( netdev ) {
netdev->ll_protocol = &ipoib_protocol;
netdev->max_pkt_len = IPOIB_PKT_LEN;
}
return netdev;
}
extern void ipoib_link_state_changed ( struct ib_device *ibdev );
extern int ipoib_probe ( struct ib_device *ibdev );
extern void ipoib_remove ( struct ib_device *ibdev );
#endif /* _GPXE_IPOIB_H */
|
