*
* 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, 2014, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define LNET_PID_USERFLAG 0x80000000 /* set in userspace peers */
#define LNET_PID_LUSTRE 12345
-#define LNET_TIME_FOREVER (-1)
-
/* how an LNET NID encodes net:address */
/** extract the address part of an lnet_nid_t */
#define WIRE_ATTR __attribute__((packed))
/* Packed version of lnet_process_id_t to transfer via network */
-typedef struct {
+typedef struct lnet_process_id_packed {
lnet_nid_t nid;
lnet_pid_t pid; /* node id / process id */
} WIRE_ATTR lnet_process_id_packed_t;
* 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 {
+typedef struct lnet_handle_wire {
__u64 wh_interface_cookie;
__u64 wh_object_cookie;
} WIRE_ATTR lnet_handle_wire_t;
* 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;
+struct lnet_ack {
+ struct lnet_handle_wire dst_wmd;
__u64 match_bits;
__u32 mlength;
-} WIRE_ATTR lnet_ack_t;
+} WIRE_ATTR;
-typedef struct lnet_put {
- lnet_handle_wire_t ack_wmd;
+struct lnet_put {
+ struct lnet_handle_wire ack_wmd;
__u64 match_bits;
__u64 hdr_data;
__u32 ptl_index;
__u32 offset;
-} WIRE_ATTR lnet_put_t;
+} WIRE_ATTR;
-typedef struct lnet_get {
- lnet_handle_wire_t return_wmd;
+struct lnet_get {
+ struct lnet_handle_wire return_wmd;
__u64 match_bits;
__u32 ptl_index;
__u32 src_offset;
__u32 sink_length;
-} WIRE_ATTR lnet_get_t;
+} WIRE_ATTR;
-typedef struct lnet_reply {
- lnet_handle_wire_t dst_wmd;
-} WIRE_ATTR lnet_reply_t;
+struct lnet_reply {
+ struct lnet_handle_wire dst_wmd;
+} WIRE_ATTR;
-typedef struct lnet_hello {
+struct lnet_hello {
__u64 incarnation;
__u32 type;
-} WIRE_ATTR lnet_hello_t;
+} WIRE_ATTR;
-typedef struct {
+typedef struct lnet_hdr {
lnet_nid_t dest_nid;
lnet_nid_t src_nid;
lnet_pid_t dest_pid;
__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;
+ struct lnet_ack ack;
+ struct lnet_put put;
+ struct lnet_get get;
+ struct lnet_reply reply;
+ struct lnet_hello hello;
} msg;
} WIRE_ATTR lnet_hdr_t;
* exchange HELLO messages when a connection is first established. Individual
* LNDs can put whatever else they fancy in lnet_hdr_t::msg.
*/
-typedef struct {
+typedef struct lnet_magicversion {
__u32 magic; /* LNET_PROTO_TCP_MAGIC */
__u16 version_major; /* increment on incompatible change */
__u16 version_minor; /* increment on compatible change */
#define LNET_PROTO_TCP_VERSION_MINOR 0
/* Acceptor connection request */
-typedef struct {
+typedef struct lnet_acceptor_connreq {
__u32 acr_magic; /* PTL_ACCEPTOR_PROTO_MAGIC */
__u32 acr_version; /* protocol version */
__u64 acr_nid; /* target NID */
* - LNET_MD_IOVEC: The start and length fields specify an array of
* struct iovec.
* - LNET_MD_MAX_SIZE: The max_size field is valid.
+ * - LNET_MD_BULK_HANDLE: The bulk_handle field is valid.
*
* Note:
* - LNET_MD_KIOV or LNET_MD_IOVEC allows for a scatter/gather
* descriptor are not logged.
*/
lnet_handle_eq_t eq_handle;
+ /**
+ * The bulk MD handle which was registered to describe the buffers
+ * either to be used to transfer data to the peer or receive data
+ * from the peer. This allows LNet to properly determine the NUMA
+ * node on which the memory was allocated and use that to select the
+ * nearest local network interface. This value is only used
+ * if the LNET_MD_BULK_HANDLE option is set.
+ */
+ lnet_handle_md_t bulk_handle;
} lnet_md_t;
/* Max Transfer Unit (minimum supported everywhere).
#define LNET_MD_MAX_SIZE (1 << 7)
/** See lnet_md_t::options. */
#define LNET_MD_KIOV (1 << 8)
+/** See lnet_md_t::options. */
+#define LNET_MD_BULK_HANDLE (1 << 9)
/* For compatibility with Cray Portals */
#define LNET_MD_PHYS 0
lnet_process_id_t target;
/** The identifier (nid, pid) of the initiator. */
lnet_process_id_t initiator;
+ /** The source NID on the initiator. */
+ lnet_process_id_t source;
/**
* The NID of the immediate sender. If the request has been forwarded
* by routers, this is the NID of the last hop; otherwise it's the
- * same as the initiator.
+ * same as the source.
*/
- lnet_nid_t sender;
+ lnet_nid_t sender;
/** Indicates the type of the event. */
lnet_event_kind_t type;
/** The portal table index specified in the request */
- unsigned int pt_index;
+ unsigned int pt_index;
/** A copy of the match bits specified in the request. */
- __u64 match_bits;
+ __u64 match_bits;
/** The length (in bytes) specified in the request. */
- unsigned int rlength;
+ unsigned int rlength;
/**
* The length (in bytes) of the data that was manipulated by the
* operation. For truncated operations, the manipulated length will be
* see lnet_md_t). For all other operations, the manipulated length
* will be the length of the requested operation, i.e. rlength.
*/
- unsigned int mlength;
+ unsigned int mlength;
/**
* The handle to the MD associated with the event. The handle may be
* invalid if the MD has been unlinked.
* been processed. In particular, the threshold field in md will
* reflect the value of the threshold after the operation occurred.
*/
- lnet_md_t md;
+ lnet_md_t md;
/**
* 64 bits of out-of-band user data. Only valid for LNET_EVENT_PUT.
* \see LNetPut
*/
- __u64 hdr_data;
+ __u64 hdr_data;
/**
* Indicates the completion status of the operation. It's 0 for
* successful operations, otherwise it's an error code.
*/
- int status;
+ int status;
/**
* Indicates whether the MD has been unlinked. Note that:
* - An event with unlinked set is the last event on the MD.
* - This field is also set for an explicit LNET_EVENT_UNLINK event.
* \see LNetMDUnlink
*/
- int unlinked;
+ int unlinked;
/**
* The displacement (in bytes) into the memory region that the
* operation used. The offset can be determined by the operation for
* a remote managed MD or by the local MD.
* \see lnet_md_t::options
*/
- unsigned int offset;
+ unsigned int offset;
/**
* The sequence number for this event. Sequence numbers are unique
* to each event.
git://git.whamcloud.com / fs / lustre-release.git / blobdiff