1 #ifndef __LNET_TYPES_H__
2 #define __LNET_TYPES_H__
4 #include <libcfs/libcfs.h>
6 #define LNET_RESERVED_PORTAL 0 /* portals reserved for lnet's own use */
8 typedef __u64 lnet_nid_t;
9 typedef __u32 lnet_pid_t;
11 #define LNET_NID_ANY ((lnet_nid_t) -1)
12 #define LNET_PID_ANY ((lnet_pid_t) -1)
15 typedef __u32 lnet_uid_t;
16 #define LNET_UID_ANY ((lnet_uid_t) -1)
19 #define LNET_PID_RESERVED 0xf0000000 /* reserved bits in PID */
20 #define LNET_PID_USERFLAG 0x80000000 /* set in userspace peers */
22 #define LNET_TIME_FOREVER (-1)
28 typedef lnet_handle_any_t lnet_handle_eq_t;
29 typedef lnet_handle_any_t lnet_handle_md_t;
30 typedef lnet_handle_any_t lnet_handle_me_t;
32 #define LNET_INVALID_HANDLE \
33 ((const lnet_handle_any_t){.cookie = -1})
34 #define LNET_EQ_NONE LNET_INVALID_HANDLE
36 static inline int LNetHandleIsEqual (lnet_handle_any_t h1, lnet_handle_any_t h2)
38 return (h1.cookie == h2.cookie);
43 lnet_pid_t pid; /* node id / process id */
63 lnet_handle_eq_t eq_handle;
66 /* Max Transfer Unit (minimum supported everywhere) */
67 #define LNET_MTU_BITS 20
68 #define LNET_MTU (1<<LNET_MTU_BITS)
70 /* limit on the number of entries in discontiguous MDs */
71 #define LNET_MAX_IOV 256
73 /* Max payload size */
74 #ifndef LNET_MAX_PAYLOAD
75 # error "LNET_MAX_PAYLOAD must be defined in config.h"
77 # if (LNET_MAX_PAYLOAD < LNET_MTU)
78 # error "LNET_MAX_PAYLOAD too small - error in configure --with-max-payload-mb"
79 # elif defined(__KERNEL__)
80 # if (LNET_MAX_PAYLOAD > (PAGE_SIZE * LNET_MAX_IOV))
81 /* PAGE_SIZE is a constant: check with cpp! */
82 # error "LNET_MAX_PAYLOAD too large - error in configure --with-max-payload-mb"
87 /* Options for the MD structure */
88 #define LNET_MD_OP_PUT (1 << 0)
89 #define LNET_MD_OP_GET (1 << 1)
90 #define LNET_MD_MANAGE_REMOTE (1 << 2)
92 #define LNET_MD_TRUNCATE (1 << 4)
93 #define LNET_MD_ACK_DISABLE (1 << 5)
94 #define LNET_MD_IOVEC (1 << 6)
95 #define LNET_MD_MAX_SIZE (1 << 7)
96 #define LNET_MD_KIOV (1 << 8)
98 /* For compatibility with Cray Portals */
99 #define LNET_MD_PHYS 0
101 #define LNET_MD_THRESH_INF (-1)
103 /* NB lustre portals uses struct iovec internally! */
104 typedef struct iovec lnet_md_iovec_t;
107 cfs_page_t *kiov_page;
108 unsigned int kiov_len;
109 unsigned int kiov_offset;
121 #define LNET_SEQ_BASETYPE long
122 typedef unsigned LNET_SEQ_BASETYPE lnet_seq_t;
123 #define LNET_SEQ_GT(a,b) (((signed LNET_SEQ_BASETYPE)((a) - (b))) > 0)
126 * cygwin need the pragma line, not clear if it's needed in other places.
130 #pragma pack(push, 4)
133 lnet_process_id_t target;
134 lnet_process_id_t initiator;
136 lnet_event_kind_t type;
137 unsigned int pt_index;
139 unsigned int rlength;
140 unsigned int mlength;
141 lnet_handle_md_t md_handle;
151 volatile lnet_seq_t sequence;
162 typedef void (*lnet_eq_handler_t)(lnet_event_t *event);
163 #define LNET_EQ_HANDLER_NONE NULL