1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * Types used by the library side routines that do not need to be
7 * exposed to the user application
13 #include <portals/types.h>
15 # define PTL_USE_SLAB_CACHE
16 # include <linux/uio.h>
17 # include <linux/smp_lock.h>
18 # include <linux/types.h>
20 # include <sys/types.h>
23 /* struct nal_cb_t is defined in lib-nal.h */
24 typedef struct nal_cb_t nal_cb_t;
26 typedef char *user_ptr;
27 typedef struct lib_msg_t lib_msg_t;
28 typedef struct lib_ptl_t lib_ptl_t;
29 typedef struct lib_ac_t lib_ac_t;
30 typedef struct lib_me_t lib_me_t;
31 typedef struct lib_md_t lib_md_t;
32 typedef struct lib_eq_t lib_eq_t;
34 #define WIRE_ATTR __attribute__((packed))
36 /* The wire handle's interface cookie only matches one network interface in
37 * one epoch (i.e. new cookie when the interface restarts or the node
38 * reboots). The object cookie only matches one object on that interface
39 * during that object's lifetime (i.e. no cookie re-use). */
41 __u64 wh_interface_cookie;
42 __u64 wh_object_cookie;
43 } WIRE_ATTR ptl_handle_wire_t;
45 /* byte-flip insensitive! */
46 #define PTL_WIRE_HANDLE_NONE \
47 ((const ptl_handle_wire_t) {.wh_interface_cookie = -1, .wh_object_cookie = -1})
57 /* The variant fields of the portals message header are aligned on an 8
58 * byte boundary in the message header. Note that all types used in these
59 * wire structs MUST be fixed size and the smaller types are placed at the
61 typedef struct ptl_ack {
62 ptl_handle_wire_t dst_wmd;
63 ptl_match_bits_t match_bits;
65 } WIRE_ATTR ptl_ack_t;
67 typedef struct ptl_put {
68 ptl_handle_wire_t ack_wmd;
69 ptl_match_bits_t match_bits;
70 ptl_hdr_data_t hdr_data;
71 ptl_pt_index_t ptl_index;
73 } WIRE_ATTR ptl_put_t;
75 typedef struct ptl_get {
76 ptl_handle_wire_t return_wmd;
77 ptl_match_bits_t match_bits;
78 ptl_pt_index_t ptl_index;
79 ptl_size_t src_offset;
80 ptl_size_t sink_length;
81 } WIRE_ATTR ptl_get_t;
83 typedef struct ptl_reply {
84 ptl_handle_wire_t dst_wmd;
85 } WIRE_ATTR ptl_reply_t;
87 typedef struct ptl_hello {
90 } WIRE_ATTR ptl_hello_t;
97 __u32 type; /* ptl_msg_type_t */
98 __u32 payload_length; /* payload data to follow */
99 /*<------__u64 aligned------->*/
107 } WIRE_ATTR ptl_hdr_t;
109 /* A HELLO message contains the portals magic number and protocol version
110 * code in the header's dest_nid, the peer's NID in the src_nid, and
111 * PTL_MSG_HELLO in the type field. All other common fields are zero
112 * (including payload_size; i.e. no payload).
113 * This is for use by byte-stream NALs (e.g. TCP/IP) to check the peer is
114 * running the same protocol and to find out its NID, so that hosts with
115 * multiple IP interfaces can have a single NID. These NALs should exchange
116 * HELLO messages when a connection is first established.
117 * Individual NALs can put whatever else they fancy in ptl_hdr_t::msg.
120 __u32 magic; /* PORTALS_PROTO_MAGIC */
121 __u16 version_major; /* increment on incompatible change */
122 __u16 version_minor; /* increment on compatible change */
123 } WIRE_ATTR ptl_magicversion_t;
125 #define PORTALS_PROTO_MAGIC 0xeebc0ded
127 #define PORTALS_PROTO_VERSION_MAJOR 0
128 #define PORTALS_PROTO_VERSION_MINOR 3
131 long recv_count, recv_length, send_count, send_length, drop_count,
132 drop_length, msgs_alloc, msgs_max;
135 /* temporary expedient: limit number of entries in discontiguous MDs */
136 # define PTL_MTU (512<<10)
137 # define PTL_MD_MAX_IOV 128
138 # define PTL_MD_MAX_PAGES min_t(int, PTL_MD_MAX_IOV, PTL_MTU / PAGE_SIZE)
141 struct list_head msg_list;
147 ptl_handle_wire_t ack_wmd;
149 struct iovec iov[PTL_MD_MAX_IOV];
150 ptl_kiov_t kiov[PTL_MD_MAX_IOV];
156 struct list_head *tbl;
164 struct list_head lh_hash_chain;
168 #define lh_entry(ptr, type, member) \
169 ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
172 struct list_head eq_list;
178 int (*event_callback) (ptl_event_t * event);
183 struct list_head me_list;
185 ptl_process_id_t match_id;
186 ptl_match_bits_t match_bits, ignore_bits;
192 struct list_head md_list;
202 unsigned int options;
203 unsigned int md_flags;
207 unsigned int md_niov; /* # frags */
209 struct iovec iov[PTL_MD_MAX_IOV];
210 ptl_kiov_t kiov[PTL_MD_MAX_IOV];
214 #define PTL_MD_FLAG_UNLINK (1 << 0)
215 #define PTL_MD_FLAG_AUTO_UNLINKED (1 << 1)
217 #ifndef PTL_USE_SLAB_CACHE
220 void *fl_objs; /* single contiguous array of objects */
221 int fl_nobjs; /* the number of them */
222 int fl_objsize; /* the size (including overhead) of each of them */
223 struct list_head fl_list; /* where they are enqueued */
228 struct list_head fo_list; /* enqueue on fl_list */
229 void *fo_contents; /* aligned contents */
234 /* info about peers we are trying to fail */
235 struct list_head tp_list; /* stash in ni.ni_test_peers */
236 ptl_nid_t tp_nid; /* matching nid */
237 unsigned int tp_threshold; /* # failures to simulate */
240 #define PTL_COOKIE_TYPE_MD 1
241 #define PTL_COOKIE_TYPE_ME 2
242 #define PTL_COOKIE_TYPE_EQ 3
243 #define PTL_COOKIE_TYPES 4
244 /* PTL_COOKIE_TYPES must be a power of 2, so the cookie type can be
245 * extracted by masking with (PTL_COOKIE_TYPES - 1) */
256 lib_counters_t counters;
258 int ni_lh_hash_size; /* size of lib handle hash table */
259 struct list_head *ni_lh_hash_table; /* all extant lib handles, this interface */
260 __u64 ni_next_object_cookie; /* cookie generator */
261 __u64 ni_interface_cookie; /* uniquely identifies this ni in this epoch */
263 struct list_head ni_test_peers;
265 #ifndef PTL_USE_SLAB_CACHE
266 lib_freelist_t ni_free_mes;
267 lib_freelist_t ni_free_msgs;
268 lib_freelist_t ni_free_mds;
269 lib_freelist_t ni_free_eqs;
271 struct list_head ni_active_msgs;
272 struct list_head ni_active_mds;
273 struct list_head ni_active_eqs;