*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012 - 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
+ * Lustre is a trademark of Seagate, Inc.
*
* lnet/include/lnet/lib-types.h
- *
- * Types used by the library side routines that do not need to be
- * exposed to the user application
*/
#ifndef __LNET_LIB_TYPES_H__
#define __LNET_LIB_TYPES_H__
-#include "linux/lib-types.h"
+#include <linux/kthread.h>
+#include <linux/uio.h>
+#include <linux/types.h>
+#include <net/sock.h>
-#include "../libcfs/libcfs.h"
-#include <linux/list.h>
#include "types.h"
-#define WIRE_ATTR __attribute__((packed))
-
-/* Packed version of lnet_process_id_t to transfer via network */
-typedef struct {
- lnet_nid_t nid;
- lnet_pid_t pid; /* node id / process id */
-} WIRE_ATTR lnet_process_id_packed_t;
-
-/* The wire handle's interface cookie only matches one network interface in
- * one epoch (i.e. new cookie when the interface restarts or the node
- * reboots). The object cookie only matches one object on that interface
- * during that object's lifetime (i.e. no cookie re-use). */
-typedef struct {
- __u64 wh_interface_cookie;
- __u64 wh_object_cookie;
-} WIRE_ATTR lnet_handle_wire_t;
-
-typedef enum {
- LNET_MSG_ACK = 0,
- LNET_MSG_PUT,
- LNET_MSG_GET,
- LNET_MSG_REPLY,
- LNET_MSG_HELLO,
-} lnet_msg_type_t;
-
-/* The variant fields of the portals message header are aligned on an 8
- * byte boundary in the message header. Note that all types used in these
- * wire structs MUST be fixed size and the smaller types are placed at the
- * end. */
-typedef struct lnet_ack {
- lnet_handle_wire_t dst_wmd;
- __u64 match_bits;
- __u32 mlength;
-} WIRE_ATTR lnet_ack_t;
-
-typedef struct lnet_put {
- lnet_handle_wire_t ack_wmd;
- __u64 match_bits;
- __u64 hdr_data;
- __u32 ptl_index;
- __u32 offset;
-} WIRE_ATTR lnet_put_t;
-
-typedef struct lnet_get {
- lnet_handle_wire_t return_wmd;
- __u64 match_bits;
- __u32 ptl_index;
- __u32 src_offset;
- __u32 sink_length;
-} WIRE_ATTR lnet_get_t;
-
-typedef struct lnet_reply {
- lnet_handle_wire_t dst_wmd;
-} WIRE_ATTR lnet_reply_t;
-
-typedef struct lnet_hello {
- __u64 incarnation;
- __u32 type;
-} WIRE_ATTR lnet_hello_t;
-
-typedef struct {
- lnet_nid_t dest_nid;
- lnet_nid_t src_nid;
- lnet_pid_t dest_pid;
- lnet_pid_t src_pid;
- __u32 type; /* lnet_msg_type_t */
- __u32 payload_length; /* payload data to follow */
- /*<------__u64 aligned------->*/
- union {
- lnet_ack_t ack;
- lnet_put_t put;
- lnet_get_t get;
- lnet_reply_t reply;
- lnet_hello_t hello;
- } msg;
-} WIRE_ATTR lnet_hdr_t;
-
-/* A HELLO message contains a magic number and protocol version
- * code in the header's dest_nid, the peer's NID in the src_nid, and
- * LNET_MSG_HELLO in the type field. All other common fields are zero
- * (including payload_size; i.e. no payload).
- * This is for use by byte-stream LNDs (e.g. TCP/IP) to check the peer is
- * running the same protocol and to find out its NID. These LNDs should
- * exchange HELLO messages when a connection is first established. Individual
- * LNDs can put whatever else they fancy in lnet_hdr_t::msg.
- */
-typedef struct {
- __u32 magic; /* LNET_PROTO_TCP_MAGIC */
- __u16 version_major; /* increment on incompatible change */
- __u16 version_minor; /* increment on compatible change */
-} WIRE_ATTR lnet_magicversion_t;
-
-/* PROTO MAGIC for LNDs */
-#define LNET_PROTO_IB_MAGIC 0x0be91b91
-#define LNET_PROTO_RA_MAGIC 0x0be91b92
-#define LNET_PROTO_QSW_MAGIC 0x0be91b93
-#define LNET_PROTO_GNI_MAGIC 0xb00fbabe /* ask Kim */
-#define LNET_PROTO_TCP_MAGIC 0xeebc0ded
-#define LNET_PROTO_PTL_MAGIC 0x50746C4E /* 'PtlN' unique magic */
-#define LNET_PROTO_MX_MAGIC 0x4d583130 /* 'MX10'! */
-#define LNET_PROTO_ACCEPTOR_MAGIC 0xacce7100
-#define LNET_PROTO_PING_MAGIC 0x70696E67 /* 'ping' */
-
-/* Placeholder for a future "unified" protocol across all LNDs */
-/* Current LNDs that receive a request with this magic will respond with a
- * "stub" reply using their current protocol */
-#define LNET_PROTO_MAGIC 0x45726963 /* ! */
-
-#define LNET_PROTO_TCP_VERSION_MAJOR 1
-#define LNET_PROTO_TCP_VERSION_MINOR 0
-
-/* Acceptor connection request */
-typedef struct {
- __u32 acr_magic; /* PTL_ACCEPTOR_PROTO_MAGIC */
- __u32 acr_version; /* protocol version */
- __u64 acr_nid; /* target NID */
-} WIRE_ATTR lnet_acceptor_connreq_t;
-
-#define LNET_PROTO_ACCEPTOR_VERSION 1
+/* Max payload size */
+#define LNET_MAX_PAYLOAD CONFIG_LNET_MAX_PAYLOAD
+#if (LNET_MAX_PAYLOAD < LNET_MTU)
+# error "LNET_MAX_PAYLOAD too small - error in configure --with-max-payload-mb"
+#elif (LNET_MAX_PAYLOAD > (PAGE_SIZE * LNET_MAX_IOV))
+# error "LNET_MAX_PAYLOAD too large - error in configure --with-max-payload-mb"
+#endif
/* forward refs */
struct lnet_libmd;
typedef struct lnet_msg {
- struct list_head msg_activelist;
- struct list_head msg_list; /* Q for credits/MD */
+ struct list_head msg_activelist;
+ struct list_head msg_list; /* Q for credits/MD */
- lnet_process_id_t msg_target;
+ lnet_process_id_t msg_target;
/* where is it from, it's only for building event */
lnet_nid_t msg_from;
__u32 msg_type;
/* ready for pending on RX delay list */
unsigned int msg_rx_ready_delay:1;
- unsigned int msg_vmflush:1; /* VM trying to free memory */
- unsigned int msg_target_is_router:1; /* sending to a router */
- unsigned int msg_routing:1; /* being forwarded */
- unsigned int msg_ack:1; /* ack on finalize (PUT) */
- unsigned int msg_sending:1; /* outgoing message */
- unsigned int msg_receiving:1; /* being received */
- unsigned int msg_txcredit:1; /* taken an NI send credit */
- unsigned int msg_peertxcredit:1; /* taken a peer send credit */
- unsigned int msg_rtrcredit:1; /* taken a global router credit */
- unsigned int msg_peerrtrcredit:1; /* taken a peer router credit */
- unsigned int msg_onactivelist:1; /* on the activelist */
-
- struct lnet_peer *msg_txpeer; /* peer I'm sending to */
- struct lnet_peer *msg_rxpeer; /* peer I received from */
-
- void *msg_private;
- struct lnet_libmd *msg_md;
-
- unsigned int msg_len;
- unsigned int msg_wanted;
- unsigned int msg_offset;
- unsigned int msg_niov;
- struct kvec *msg_iov;
- lnet_kiov_t *msg_kiov;
-
- lnet_event_t msg_ev;
- lnet_hdr_t msg_hdr;
+ unsigned int msg_vmflush:1; /* VM trying to free memory */
+ unsigned int msg_target_is_router:1; /* sending to a router */
+ unsigned int msg_routing:1; /* being forwarded */
+ unsigned int msg_ack:1; /* ack on finalize (PUT) */
+ unsigned int msg_sending:1; /* outgoing message */
+ unsigned int msg_receiving:1; /* being received */
+ unsigned int msg_txcredit:1; /* taken an NI send credit */
+ unsigned int msg_peertxcredit:1; /* taken a peer send credit */
+ unsigned int msg_rtrcredit:1; /* taken a global
+ router credit */
+ unsigned int msg_peerrtrcredit:1; /* taken a peer router credit */
+ unsigned int msg_onactivelist:1; /* on the activelist */
+
+ struct lnet_peer *msg_txpeer; /* peer I'm sending to */
+ struct lnet_peer *msg_rxpeer; /* peer I received from */
+
+ void *msg_private;
+ struct lnet_libmd *msg_md;
+
+ unsigned int msg_len;
+ unsigned int msg_wanted;
+ unsigned int msg_offset;
+ unsigned int msg_niov;
+ struct kvec *msg_iov;
+ lnet_kiov_t *msg_kiov;
+
+ lnet_event_t msg_ev;
+ lnet_hdr_t msg_hdr;
} lnet_msg_t;
typedef struct lnet_libhandle {
- struct list_head lh_hash_chain;
- __u64 lh_cookie;
+ struct list_head lh_hash_chain;
+ __u64 lh_cookie;
} lnet_libhandle_t;
#define lh_entry(ptr, type, member) \
((type *)((char *)(ptr)-(char *)(&((type *)0)->member)))
typedef struct lnet_eq {
- struct list_head eq_list;
- lnet_libhandle_t eq_lh;
- lnet_seq_t eq_enq_seq;
- lnet_seq_t eq_deq_seq;
- unsigned int eq_size;
- lnet_eq_handler_t eq_callback;
- lnet_event_t *eq_events;
+ struct list_head eq_list;
+ lnet_libhandle_t eq_lh;
+ lnet_seq_t eq_enq_seq;
+ lnet_seq_t eq_deq_seq;
+ unsigned int eq_size;
+ lnet_eq_handler_t eq_callback;
+ lnet_event_t *eq_events;
int **eq_refs; /* percpt refcount for EQ */
} lnet_eq_t;
typedef struct lnet_me {
- struct list_head me_list;
- lnet_libhandle_t me_lh;
- lnet_process_id_t me_match_id;
- unsigned int me_portal;
- unsigned int me_pos; /* hash offset in mt_hash */
- __u64 me_match_bits;
- __u64 me_ignore_bits;
- lnet_unlink_t me_unlink;
- struct lnet_libmd *me_md;
+ struct list_head me_list;
+ lnet_libhandle_t me_lh;
+ lnet_process_id_t me_match_id;
+ unsigned int me_portal;
+ unsigned int me_pos; /* hash offset in mt_hash */
+ __u64 me_match_bits;
+ __u64 me_ignore_bits;
+ lnet_unlink_t me_unlink;
+ struct lnet_libmd *me_md;
} lnet_me_t;
typedef struct lnet_libmd {
- struct list_head md_list;
- lnet_libhandle_t md_lh;
- lnet_me_t *md_me;
- char *md_start;
- unsigned int md_offset;
- unsigned int md_length;
- unsigned int md_max_size;
- int md_threshold;
- int md_refcount;
- unsigned int md_options;
- unsigned int md_flags;
- void *md_user_ptr;
- lnet_eq_t *md_eq;
- unsigned int md_niov; /* # frags */
+ struct list_head md_list;
+ lnet_libhandle_t md_lh;
+ lnet_me_t *md_me;
+ char *md_start;
+ unsigned int md_offset;
+ unsigned int md_length;
+ unsigned int md_max_size;
+ int md_threshold;
+ int md_refcount;
+ unsigned int md_options;
+ unsigned int md_flags;
+ void *md_user_ptr;
+ lnet_eq_t *md_eq;
+ unsigned int md_niov; /* # frags */
union {
- struct kvec iov[LNET_MAX_IOV];
- lnet_kiov_t kiov[LNET_MAX_IOV];
+ struct kvec iov[LNET_MAX_IOV];
+ lnet_kiov_t kiov[LNET_MAX_IOV];
} md_iov;
} lnet_libmd_t;
-#define LNET_MD_FLAG_ZOMBIE (1 << 0)
-#define LNET_MD_FLAG_AUTO_UNLINK (1 << 1)
-#define LNET_MD_FLAG_ABORTED (1 << 2)
-
-#ifdef LNET_USE_LIB_FREELIST
-typedef struct {
- void *fl_objs; /* single contiguous array of objects */
- int fl_nobjs; /* the number of them */
- int fl_objsize; /* the size (including overhead) of each of them */
- struct list_head fl_list; /* where they are enqueued */
-} lnet_freelist_t;
-
-typedef struct {
- struct list_head fo_list; /* enqueue on fl_list */
- void *fo_contents; /* aligned contents */
-} lnet_freeobj_t;
-#endif
+#define LNET_MD_FLAG_ZOMBIE (1 << 0)
+#define LNET_MD_FLAG_AUTO_UNLINK (1 << 1)
+#define LNET_MD_FLAG_ABORTED (1 << 2)
typedef struct {
/* info about peers we are trying to fail */
- struct list_head tp_list; /* ln_test_peers */
- lnet_nid_t tp_nid; /* matching nid */
- unsigned int tp_threshold; /* # failures to simulate */
+ struct list_head tp_list; /* ln_test_peers */
+ lnet_nid_t tp_nid; /* matching nid */
+ unsigned int tp_threshold; /* # failures to simulate */
} lnet_test_peer_t;
-#define LNET_COOKIE_TYPE_MD 1
-#define LNET_COOKIE_TYPE_ME 2
-#define LNET_COOKIE_TYPE_EQ 3
-#define LNET_COOKIE_TYPE_BITS 2
+#define LNET_COOKIE_TYPE_MD 1
+#define LNET_COOKIE_TYPE_ME 2
+#define LNET_COOKIE_TYPE_EQ 3
+#define LNET_COOKIE_TYPE_BITS 2
#define LNET_COOKIE_MASK ((1ULL << LNET_COOKIE_TYPE_BITS) - 1ULL)
-struct lnet_ni; /* forward ref */
+struct lnet_ni; /* forward ref */
typedef struct lnet_lnd {
/* fields managed by portals */
- struct list_head lnd_list; /* stash in the LND table */
- int lnd_refcount; /* # active instances */
+ struct list_head lnd_list; /* stash in the LND table */
+ int lnd_refcount; /* # active instances */
/* fields initialised by the LND */
- unsigned int lnd_type;
+ __u32 lnd_type;
int (*lnd_startup)(struct lnet_ni *ni);
void (*lnd_shutdown)(struct lnet_ni *ni);
int (*lnd_recv)(struct lnet_ni *ni, void *private, lnet_msg_t *msg,
int delayed, unsigned int niov,
struct kvec *iov, lnet_kiov_t *kiov,
- unsigned int offset, unsigned int mlen, unsigned int rlen);
+ unsigned int offset, unsigned int mlen,
+ unsigned int rlen);
/* lnet_parse() has had to delay processing of this message
* (e.g. waiting for a forwarding buffer or send credits). Give the
* for success and do NOT give back a receive credit; that has to wait
* until lnd_recv() gets called. On failure return < 0 and
* release resources; lnd_recv() will not be called. */
- int (*lnd_eager_recv)(struct lnet_ni *ni, void *private, lnet_msg_t *msg,
- void **new_privatep);
+ int (*lnd_eager_recv)(struct lnet_ni *ni, void *private,
+ lnet_msg_t *msg, void **new_privatep);
/* notification of peer health */
void (*lnd_notify)(struct lnet_ni *ni, lnet_nid_t peer, int alive);
/* query of peer aliveness */
- void (*lnd_query)(struct lnet_ni *ni, lnet_nid_t peer, unsigned long *when);
+ void (*lnd_query)(struct lnet_ni *ni, lnet_nid_t peer,
+ unsigned long *when);
/* accept a new connection */
int (*lnd_accept)(struct lnet_ni *ni, struct socket *sock);
-
} lnd_t;
-#define LNET_NI_STATUS_UP 0x15aac0de
-#define LNET_NI_STATUS_DOWN 0xdeadface
-#define LNET_NI_STATUS_INVALID 0x00000000
-typedef struct {
- lnet_nid_t ns_nid;
- __u32 ns_status;
- __u32 ns_unused;
-} WIRE_ATTR lnet_ni_status_t;
-
struct lnet_tx_queue {
int tq_credits; /* # tx credits free */
int tq_credits_min; /* lowest it's been */
int tq_credits_max; /* total # tx credits */
- struct list_head tq_delayed; /* delayed TXs */
+ struct list_head tq_delayed; /* delayed TXs */
};
-#define LNET_MAX_INTERFACES 16
-
typedef struct lnet_ni {
- spinlock_t ni_lock;
- struct list_head ni_list; /* chain on ln_nis */
- struct list_head ni_cptlist; /* chain on ln_nis_cpt */
- int ni_maxtxcredits; /* # tx credits */
+ spinlock_t ni_lock;
+ struct list_head ni_list; /* chain on ln_nis */
+ struct list_head ni_cptlist; /* chain on ln_nis_cpt */
+ int ni_maxtxcredits; /* # tx credits */
/* # per-peer send credits */
- int ni_peertxcredits;
+ int ni_peertxcredits;
/* # per-peer router buffer credits */
- int ni_peerrtrcredits;
+ int ni_peerrtrcredits;
/* seconds to consider peer dead */
- int ni_peertimeout;
- int ni_ncpts; /* number of CPTs */
- __u32 *ni_cpts; /* bond NI on some CPTs */
- lnet_nid_t ni_nid; /* interface's NID */
- void *ni_data; /* instance-specific data */
- lnd_t *ni_lnd; /* procedural interface */
+ int ni_peertimeout;
+ int ni_ncpts; /* number of CPTs */
+ __u32 *ni_cpts; /* bond NI on some CPTs */
+ lnet_nid_t ni_nid; /* interface's NID */
+ void *ni_data; /* instance-specific data */
+ lnd_t *ni_lnd; /* procedural interface */
struct lnet_tx_queue **ni_tx_queues; /* percpt TX queues */
int **ni_refs; /* percpt reference count */
- long ni_last_alive; /* when I was last alive */
- lnet_ni_status_t *ni_status; /* my health status */
+ time64_t ni_last_alive;/* when I was last alive */
+ lnet_ni_status_t *ni_status; /* my health status */
/* equivalent interfaces to use */
- char *ni_interfaces[LNET_MAX_INTERFACES];
+ char *ni_interfaces[LNET_MAX_INTERFACES];
} lnet_ni_t;
#define LNET_PROTO_PING_MATCHBITS 0x8000000000000000LL
#define LNET_PING_FEAT_MASK (LNET_PING_FEAT_BASE | \
LNET_PING_FEAT_NI_STATUS)
-typedef struct {
- __u32 pi_magic;
- __u32 pi_features;
- lnet_pid_t pi_pid;
- __u32 pi_nnis;
- lnet_ni_status_t pi_ni[0];
-} WIRE_ATTR lnet_ping_info_t;
-
/* router checker data, per router */
#define LNET_MAX_RTR_NIS 16
#define LNET_PINGINFO_SIZE offsetof(lnet_ping_info_t, pi_ni[LNET_MAX_RTR_NIS])
typedef struct {
/* chain on the_lnet.ln_zombie_rcd or ln_deathrow_rcd */
- struct list_head rcd_list;
- lnet_handle_md_t rcd_mdh; /* ping buffer MD */
+ struct list_head rcd_list;
+ lnet_handle_md_t rcd_mdh; /* ping buffer MD */
struct lnet_peer *rcd_gateway; /* reference to gateway */
lnet_ping_info_t *rcd_pinginfo; /* ping buffer */
} lnet_rc_data_t;
typedef struct lnet_peer {
- struct list_head lp_hashlist; /* chain on peer hash */
- struct list_head lp_txq; /* messages blocking for tx credits */
- struct list_head lp_rtrq; /* messages blocking for router credits */
- struct list_head lp_rtr_list; /* chain on router list */
- int lp_txcredits; /* # tx credits available */
- int lp_mintxcredits; /* low water mark */
- int lp_rtrcredits; /* # router credits */
- int lp_minrtrcredits; /* low water mark */
- unsigned int lp_alive:1; /* alive/dead? */
- unsigned int lp_notify:1; /* notification outstanding? */
- unsigned int lp_notifylnd:1; /* outstanding notification for LND? */
- unsigned int lp_notifying:1; /* some thread is handling notification */
- unsigned int lp_ping_notsent; /* SEND event outstanding from ping */
- int lp_alive_count; /* # times router went dead<->alive */
- long lp_txqnob; /* bytes queued for sending */
- unsigned long lp_timestamp; /* time of last aliveness news */
- unsigned long lp_ping_timestamp; /* time of last ping attempt */
- unsigned long lp_ping_deadline; /* != 0 if ping reply expected */
- unsigned long lp_last_alive; /* when I was last alive */
- unsigned long lp_last_query; /* when lp_ni was queried last time */
- lnet_ni_t *lp_ni; /* interface peer is on */
- lnet_nid_t lp_nid; /* peer's NID */
- int lp_refcount; /* # refs */
- int lp_cpt; /* CPT this peer attached on */
+ struct list_head lp_hashlist; /* chain on peer hash */
+ struct list_head lp_txq; /* messages blocking for
+ tx credits */
+ struct list_head lp_rtrq; /* messages blocking for
+ router credits */
+ struct list_head lp_rtr_list; /* chain on router list */
+ int lp_txcredits; /* # tx credits available */
+ int lp_mintxcredits; /* low water mark */
+ int lp_rtrcredits; /* # router credits */
+ int lp_minrtrcredits; /* low water mark */
+ unsigned int lp_alive:1; /* alive/dead? */
+ unsigned int lp_notify:1; /* notification outstanding? */
+ unsigned int lp_notifylnd:1;/* outstanding notification
+ for LND? */
+ unsigned int lp_notifying:1; /* some thread is handling
+ notification */
+ unsigned int lp_ping_notsent;/* SEND event outstanding
+ from ping */
+ int lp_alive_count; /* # times router went
+ dead<->alive */
+ long lp_txqnob; /* bytes queued for sending */
+ unsigned long lp_timestamp; /* time of last aliveness
+ news */
+ unsigned long lp_ping_timestamp;/* time of last ping
+ attempt */
+ unsigned long lp_ping_deadline; /* != 0 if ping reply
+ expected */
+ unsigned long lp_last_alive; /* when I was last alive */
+ unsigned long lp_last_query; /* when lp_ni was queried
+ last time */
+ lnet_ni_t *lp_ni; /* interface peer is on */
+ lnet_nid_t lp_nid; /* peer's NID */
+ int lp_refcount; /* # refs */
+ int lp_cpt; /* CPT this peer attached on */
/* # refs from lnet_route_t::lr_gateway */
- int lp_rtr_refcount;
+ int lp_rtr_refcount;
/* returned RC ping features */
- unsigned int lp_ping_feats;
- struct list_head lp_routes; /* routers on this peer */
+ unsigned int lp_ping_feats;
+ struct list_head lp_routes; /* routers on this peer */
lnet_rc_data_t *lp_rcd; /* router checker state */
} lnet_peer_t;
/* peer hash size */
-#define LNET_PEER_HASH_BITS 9
-#define LNET_PEER_HASH_SIZE (1 << LNET_PEER_HASH_BITS)
+#define LNET_PEER_HASH_BITS 9
+#define LNET_PEER_HASH_SIZE (1 << LNET_PEER_HASH_BITS)
/* peer hash table */
struct lnet_peer_table {
- int pt_version; /* /proc validity stamp */
- int pt_number; /* # peers extant */
- struct list_head pt_deathrow; /* zombie peers */
- struct list_head *pt_hash; /* NID->peer hash */
+ int pt_version; /* /proc validity stamp */
+ int pt_number; /* # peers extant */
+ struct list_head pt_deathrow; /* zombie peers */
+ struct list_head *pt_hash; /* NID->peer hash */
};
/* peer aliveness is enabled only on routers for peers in a network where the
(lp)->lp_ni->ni_peertimeout > 0)
typedef struct {
- struct list_head lr_list; /* chain on net */
- struct list_head lr_gwlist; /* chain on gateway */
+ struct list_head lr_list; /* chain on net */
+ struct list_head lr_gwlist; /* chain on gateway */
lnet_peer_t *lr_gateway; /* router node */
- __u32 lr_net; /* remote network number */
- int lr_seq; /* sequence for round-robin */
- unsigned int lr_downis; /* number of down NIs */
- unsigned int lr_hops; /* how far I am */
- unsigned int lr_priority; /* route priority */
+ __u32 lr_net; /* remote network number */
+ int lr_seq; /* sequence for round-robin */
+ unsigned int lr_downis; /* number of down NIs */
+ unsigned int lr_hops; /* how far I am */
+ unsigned int lr_priority; /* route priority */
} lnet_route_t;
#define LNET_REMOTE_NETS_HASH_DEFAULT (1U << 7)
#define LNET_REMOTE_NETS_HASH_SIZE (1 << the_lnet.ln_remote_nets_hbits)
typedef struct {
- struct list_head lrn_list; /* chain on ln_remote_nets_hash */
- struct list_head lrn_routes; /* routes to me */
- __u32 lrn_net; /* my net number */
+ struct list_head lrn_list; /* chain on
+ ln_remote_nets_hash */
+ struct list_head lrn_routes; /* routes to me */
+ __u32 lrn_net; /* my net number */
} lnet_remotenet_t;
+/** lnet message has credit and can be submitted to lnd for send/receive */
+#define LNET_CREDIT_OK 0
+/** lnet message is waiting for credit */
+#define LNET_CREDIT_WAIT 1
+
typedef struct {
- struct list_head rbp_bufs; /* my free buffer pool */
- struct list_head rbp_msgs; /* messages blocking for a buffer */
- int rbp_npages; /* # pages in each buffer */
- int rbp_nbuffers; /* # buffers */
- int rbp_credits; /* # free buffers / blocked messages */
- int rbp_mincredits; /* low water mark */
+ struct list_head rbp_bufs; /* my free buffer pool */
+ struct list_head rbp_msgs; /* messages blocking
+ for a buffer */
+ int rbp_npages; /* # pages in each buffer */
+ int rbp_nbuffers; /* # buffers */
+ int rbp_credits; /* # free buffers /
+ blocked messages */
+ int rbp_mincredits; /* low water mark */
} lnet_rtrbufpool_t;
typedef struct {
- struct list_head rb_list; /* chain on rbp_bufs */
- lnet_rtrbufpool_t *rb_pool; /* owning pool */
- lnet_kiov_t rb_kiov[0]; /* the buffer space */
+ struct list_head rb_list; /* chain on rbp_bufs */
+ lnet_rtrbufpool_t *rb_pool; /* owning pool */
+ lnet_kiov_t rb_kiov[0]; /* the buffer space */
} lnet_rtrbuf_t;
-typedef struct {
- __u32 msgs_alloc;
- __u32 msgs_max;
- __u32 errors;
- __u32 send_count;
- __u32 recv_count;
- __u32 route_count;
- __u32 drop_count;
- __u64 send_length;
- __u64 recv_length;
- __u64 route_length;
- __u64 drop_length;
-} WIRE_ATTR lnet_counters_t;
-
-#define LNET_PEER_HASHSIZE 503 /* prime! */
-
-#define LNET_NRBPOOLS 3 /* # different router buffer pools */
+#define LNET_PEER_HASHSIZE 503 /* prime! */
+
+#define LNET_NRBPOOLS 3 /* # different router buffer pools */
enum {
/* Didn't match anything */
/* Must be discarded */
LNET_MATCHMD_DROP = (1 << 2),
/* match and buffer is exhausted */
- LNET_MATCHMD_EXHAUSTED = (1 << 3),
+ LNET_MATCHMD_EXHAUSTED = (1 << 3),
/* match or drop */
- LNET_MATCHMD_FINISH = (LNET_MATCHMD_OK | LNET_MATCHMD_DROP),
+ LNET_MATCHMD_FINISH = (LNET_MATCHMD_OK | LNET_MATCHMD_DROP),
};
/* Options for lnet_portal_t::ptl_options */
-#define LNET_PTL_LAZY (1 << 0)
-#define LNET_PTL_MATCH_UNIQUE (1 << 1) /* unique match, for RDMA */
-#define LNET_PTL_MATCH_WILDCARD (1 << 2) /* wildcard match, request portal */
+#define LNET_PTL_LAZY (1 << 0)
+#define LNET_PTL_MATCH_UNIQUE (1 << 1) /* unique match, for RDMA */
+#define LNET_PTL_MATCH_WILDCARD (1 << 2) /* wildcard match,
+ request portal */
/* parameter for matching operations (GET, PUT) */
struct lnet_match_info {
/* portal match table */
struct lnet_match_table {
/* reserved for upcoming patches, CPU partition ID */
- unsigned int mt_cpt;
- unsigned int mt_portal; /* portal index */
+ unsigned int mt_cpt;
+ unsigned int mt_portal; /* portal index */
/* match table is set as "enabled" if there's non-exhausted MD
* attached on mt_mhash, it's only valid for wildcard portal */
- unsigned int mt_enabled;
+ unsigned int mt_enabled;
/* bitmap to flag whether MEs on mt_hash are exhausted or not */
- __u64 mt_exhausted[LNET_MT_EXHAUSTED_BMAP];
- struct list_head *mt_mhash; /* matching hash */
+ __u64 mt_exhausted[LNET_MT_EXHAUSTED_BMAP];
+ struct list_head *mt_mhash; /* matching hash */
};
/* these are only useful for wildcard portal */
#define LNET_PTL_ROTOR_HASH_RT 3
typedef struct lnet_portal {
- spinlock_t ptl_lock;
- unsigned int ptl_index; /* portal ID, reserved */
+ spinlock_t ptl_lock;
+ unsigned int ptl_index; /* portal ID, reserved */
/* flags on this portal: lazy, unique... */
- unsigned int ptl_options;
+ unsigned int ptl_options;
/* list of messages which are stealing buffer */
- struct list_head ptl_msg_stealing;
+ struct list_head ptl_msg_stealing;
/* messages blocking for MD */
- struct list_head ptl_msg_delayed;
+ struct list_head ptl_msg_delayed;
/* Match table for each CPT */
struct lnet_match_table **ptl_mtables;
/* spread rotor of incoming "PUT" */
- unsigned int ptl_rotor;
+ unsigned int ptl_rotor;
/* # active entries for this portal */
- int ptl_mt_nmaps;
+ int ptl_mt_nmaps;
/* array of active entries' cpu-partition-id */
- int ptl_mt_maps[0];
+ int ptl_mt_maps[0];
} lnet_portal_t;
#define LNET_LH_HASH_BITS 12
/* resource container (ME, MD, EQ) */
struct lnet_res_container {
- unsigned int rec_type; /* container type */
- __u64 rec_lh_cookie; /* cookie generator */
- struct list_head rec_active; /* active resource list */
- struct list_head *rec_lh_hash; /* handle hash */
-#ifdef LNET_USE_LIB_FREELIST
- lnet_freelist_t rec_freelist; /* freelist for resources */
-#endif
+ unsigned int rec_type; /* container type */
+ __u64 rec_lh_cookie; /* cookie generator */
+ struct list_head rec_active; /* active resource list */
+ struct list_head *rec_lh_hash; /* handle hash */
};
/* message container */
struct lnet_msg_container {
- int msc_init; /* initialized or not */
+ int msc_init; /* initialized or not */
/* max # threads finalizing */
- int msc_nfinalizers;
+ int msc_nfinalizers;
/* msgs waiting to complete finalizing */
- struct list_head msc_finalizing;
- struct list_head msc_active; /* active message list */
+ struct list_head msc_finalizing;
+ struct list_head msc_active; /* active message list */
/* threads doing finalization */
void **msc_finalizers;
-#ifdef LNET_USE_LIB_FREELIST
- lnet_freelist_t msc_freelist; /* freelist for messages */
-#endif
};
/* Router Checker states */
typedef struct {
/* CPU partition table of LNet */
- struct cfs_cpt_table *ln_cpt_table;
+ struct cfs_cpt_table *ln_cpt_table;
/* number of CPTs in ln_cpt_table */
- unsigned int ln_cpt_number;
- unsigned int ln_cpt_bits;
+ unsigned int ln_cpt_number;
+ unsigned int ln_cpt_bits;
/* protect LNet resources (ME/MD/EQ) */
- struct cfs_percpt_lock *ln_res_lock;
+ struct cfs_percpt_lock *ln_res_lock;
/* # portals */
- int ln_nportals;
+ int ln_nportals;
/* the vector of portals */
lnet_portal_t **ln_portals;
/* percpt ME containers */
struct lnet_res_container **ln_md_containers;
/* Event Queue container */
- struct lnet_res_container ln_eq_container;
- wait_queue_head_t ln_eq_waitq;
- spinlock_t ln_eq_wait_lock;
- unsigned int ln_remote_nets_hbits;
+ struct lnet_res_container ln_eq_container;
+ wait_queue_head_t ln_eq_waitq;
+ spinlock_t ln_eq_wait_lock;
+ unsigned int ln_remote_nets_hbits;
/* protect NI, peer table, credits, routers, rtrbuf... */
- struct cfs_percpt_lock *ln_net_lock;
+ struct cfs_percpt_lock *ln_net_lock;
/* percpt message containers for active/finalizing/freed message */
struct lnet_msg_container **ln_msg_containers;
lnet_counters_t **ln_counters;
struct lnet_peer_table **ln_peer_tables;
/* failure simulation */
- struct list_head ln_test_peers;
+ struct list_head ln_test_peers;
- struct list_head ln_nis; /* LND instances */
+ struct list_head ln_nis; /* LND instances */
/* NIs bond on specific CPT(s) */
- struct list_head ln_nis_cpt;
+ struct list_head ln_nis_cpt;
/* dying LND instances */
- struct list_head ln_nis_zombie;
- lnet_ni_t *ln_loni; /* the loopback NI */
+ struct list_head ln_nis_zombie;
+ lnet_ni_t *ln_loni; /* the loopback NI */
/* NI to wait for events in */
- lnet_ni_t *ln_eq_waitni;
+ lnet_ni_t *ln_eq_waitni;
/* remote networks with routes to them */
- struct list_head *ln_remote_nets_hash;
+ struct list_head *ln_remote_nets_hash;
/* validity stamp */
- __u64 ln_remote_nets_version;
+ __u64 ln_remote_nets_version;
/* list of all known routers */
- struct list_head ln_routers;
+ struct list_head ln_routers;
/* validity stamp */
- __u64 ln_routers_version;
+ __u64 ln_routers_version;
/* percpt router buffer pools */
lnet_rtrbufpool_t **ln_rtrpools;
- lnet_handle_md_t ln_ping_target_md;
- lnet_handle_eq_t ln_ping_target_eq;
- lnet_ping_info_t *ln_ping_info;
+ lnet_handle_md_t ln_ping_target_md;
+ lnet_handle_eq_t ln_ping_target_eq;
+ lnet_ping_info_t *ln_ping_info;
/* router checker startup/shutdown state */
- int ln_rc_state;
+ int ln_rc_state;
/* router checker's event queue */
- lnet_handle_eq_t ln_rc_eqh;
+ lnet_handle_eq_t ln_rc_eqh;
/* rcd still pending on net */
- struct list_head ln_rcd_deathrow;
+ struct list_head ln_rcd_deathrow;
/* rcd ready for free */
- struct list_head ln_rcd_zombie;
+ struct list_head ln_rcd_zombie;
/* serialise startup/shutdown */
- struct semaphore ln_rc_signal;
+ struct semaphore ln_rc_signal;
- struct mutex ln_api_mutex;
- struct mutex ln_lnd_mutex;
- int ln_init; /* LNetInit() called? */
+ struct mutex ln_api_mutex;
+ struct mutex ln_lnd_mutex;
+ int ln_init; /* lnet_init()
+ called? */
/* Have I called LNetNIInit myself? */
- int ln_niinit_self;
+ int ln_niinit_self;
/* LNetNIInit/LNetNIFini counter */
- int ln_refcount;
+ int ln_refcount;
/* shutdown in progress */
- int ln_shutdown;
+ int ln_shutdown;
- int ln_routing; /* am I a router? */
- lnet_pid_t ln_pid; /* requested pid */
+ int ln_routing; /* am I a router? */
+ lnet_pid_t ln_pid; /* requested pid */
/* uniquely identifies this ni in this epoch */
- __u64 ln_interface_cookie;
+ __u64 ln_interface_cookie;
/* registered LNDs */
- struct list_head ln_lnds;
+ struct list_head ln_lnds;
/* space for network names */
- char *ln_network_tokens;
- int ln_network_tokens_nob;
+ char *ln_network_tokens;
+ int ln_network_tokens_nob;
/* test protocol compatibility flags */
- int ln_testprotocompat;
+ int ln_testprotocompat;
} lnet_t;
Code Review / kvmfornfv.git / blobdiff