2 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
4 * Copyright (c) 2012, 2017, Intel Corporation.
6 * Author: Zach Brown <zab@zabbo.net>
7 * Author: Peter J. Braam <braam@clusterfs.com>
8 * Author: Phil Schwan <phil@clusterfs.com>
9 * Author: Eric Barton <eric@bartonsoftware.com>
11 * This file is part of Lustre, https://wiki.whamcloud.com/
13 * Portals is free software; you can redistribute it and/or
14 * modify it under the terms of version 2 of the GNU General Public
15 * License as published by the Free Software Foundation.
17 * Portals is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with Portals; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 * pro_send_hello : send hello message
32 * pro_recv_hello : receive hello message
33 * pro_pack : pack message header
34 * pro_unpack : unpack message header
35 * pro_queue_tx_zcack() : Called holding BH lock: kss_lock
36 * return 1 if ACK is piggybacked, otherwise return 0
37 * pro_queue_tx_msg() : Called holding BH lock: kss_lock
38 * return the ACK that piggybacked by my message, or NULL
39 * pro_handle_zcreq() : handler of incoming ZC-REQ
40 * pro_handle_zcack() : handler of incoming ZC-ACK
41 * pro_match_tx() : Called holding glock
44 static struct ksock_tx *
45 ksocknal_queue_tx_msg_v1(struct ksock_conn *conn, struct ksock_tx *tx_msg)
47 /* V1.x, just enqueue it */
48 list_add_tail(&tx_msg->tx_list, &conn->ksnc_tx_queue);
53 ksocknal_next_tx_carrier(struct ksock_conn *conn)
55 struct ksock_tx *tx = conn->ksnc_tx_carrier;
57 /* Called holding BH lock: conn->ksnc_scheduler->kss_lock */
58 LASSERT(!list_empty(&conn->ksnc_tx_queue));
61 /* Next TX that can carry ZC-ACK or LNet message */
62 if (tx->tx_list.next == &conn->ksnc_tx_queue) {
63 /* no more packets queued */
64 conn->ksnc_tx_carrier = NULL;
66 conn->ksnc_tx_carrier = list_entry(tx->tx_list.next,
67 struct ksock_tx, tx_list);
68 LASSERT(conn->ksnc_tx_carrier->tx_msg.ksm_type ==
74 ksocknal_queue_tx_zcack_v2(struct ksock_conn *conn,
75 struct ksock_tx *tx_ack, __u64 cookie)
77 struct ksock_tx *tx = conn->ksnc_tx_carrier;
79 LASSERT (tx_ack == NULL ||
80 tx_ack->tx_msg.ksm_type == KSOCK_MSG_NOOP);
83 * Enqueue or piggyback tx_ack / cookie
84 * . no tx can piggyback cookie of tx_ack (or cookie), just
85 * enqueue the tx_ack (if tx_ack != NUL) and return NULL.
86 * . There is tx can piggyback cookie of tx_ack (or cookie),
87 * piggyback the cookie and return the tx.
91 list_add_tail(&tx_ack->tx_list,
92 &conn->ksnc_tx_queue);
93 conn->ksnc_tx_carrier = tx_ack;
98 if (tx->tx_msg.ksm_type == KSOCK_MSG_NOOP) {
99 /* tx is noop zc-ack, can't piggyback zc-ack cookie */
101 list_add_tail(&tx_ack->tx_list,
102 &conn->ksnc_tx_queue);
106 LASSERT(tx->tx_msg.ksm_type == KSOCK_MSG_LNET);
107 LASSERT(tx->tx_msg.ksm_zc_cookies[1] == 0);
110 cookie = tx_ack->tx_msg.ksm_zc_cookies[1];
112 /* piggyback the zc-ack cookie */
113 tx->tx_msg.ksm_zc_cookies[1] = cookie;
114 /* move on to the next TX which can carry cookie */
115 ksocknal_next_tx_carrier(conn);
120 static struct ksock_tx *
121 ksocknal_queue_tx_msg_v2(struct ksock_conn *conn, struct ksock_tx *tx_msg)
123 struct ksock_tx *tx = conn->ksnc_tx_carrier;
127 * . If there is no NOOP on the connection, just enqueue
128 * tx_msg and return NULL
129 * . If there is NOOP on the connection, piggyback the cookie
130 * and replace the NOOP tx, and return the NOOP tx.
132 if (tx == NULL) { /* nothing on queue */
133 list_add_tail(&tx_msg->tx_list, &conn->ksnc_tx_queue);
134 conn->ksnc_tx_carrier = tx_msg;
138 if (tx->tx_msg.ksm_type == KSOCK_MSG_LNET) { /* nothing to carry */
139 list_add_tail(&tx_msg->tx_list, &conn->ksnc_tx_queue);
143 LASSERT (tx->tx_msg.ksm_type == KSOCK_MSG_NOOP);
145 /* There is a noop zc-ack can be piggybacked */
146 tx_msg->tx_msg.ksm_zc_cookies[1] = tx->tx_msg.ksm_zc_cookies[1];
147 ksocknal_next_tx_carrier(conn);
149 /* use new_tx to replace the noop zc-ack packet */
150 list_add(&tx_msg->tx_list, &tx->tx_list);
151 list_del(&tx->tx_list);
157 ksocknal_queue_tx_zcack_v3(struct ksock_conn *conn,
158 struct ksock_tx *tx_ack, __u64 cookie)
162 if (conn->ksnc_type != SOCKLND_CONN_ACK)
163 return ksocknal_queue_tx_zcack_v2(conn, tx_ack, cookie);
165 /* non-blocking ZC-ACK (to router) */
166 LASSERT (tx_ack == NULL ||
167 tx_ack->tx_msg.ksm_type == KSOCK_MSG_NOOP);
169 if ((tx = conn->ksnc_tx_carrier) == NULL) {
170 if (tx_ack != NULL) {
171 list_add_tail(&tx_ack->tx_list,
172 &conn->ksnc_tx_queue);
173 conn->ksnc_tx_carrier = tx_ack;
178 /* conn->ksnc_tx_carrier != NULL */
181 cookie = tx_ack->tx_msg.ksm_zc_cookies[1];
183 if (cookie == SOCKNAL_KEEPALIVE_PING) /* ignore keepalive PING */
186 if (tx->tx_msg.ksm_zc_cookies[1] == SOCKNAL_KEEPALIVE_PING) {
187 /* replace the keepalive PING with a real ACK */
188 LASSERT (tx->tx_msg.ksm_zc_cookies[0] == 0);
189 tx->tx_msg.ksm_zc_cookies[1] = cookie;
193 if (cookie == tx->tx_msg.ksm_zc_cookies[0] ||
194 cookie == tx->tx_msg.ksm_zc_cookies[1]) {
195 CWARN("%s: duplicated ZC cookie: %llu\n",
196 libcfs_id2str(conn->ksnc_peer->ksnp_id), cookie);
197 return 1; /* XXX return error in the future */
200 if (tx->tx_msg.ksm_zc_cookies[0] == 0) {
201 /* NOOP tx has only one ZC-ACK cookie, can carry at least one more */
202 if (tx->tx_msg.ksm_zc_cookies[1] > cookie) {
203 tx->tx_msg.ksm_zc_cookies[0] = tx->tx_msg.ksm_zc_cookies[1];
204 tx->tx_msg.ksm_zc_cookies[1] = cookie;
206 tx->tx_msg.ksm_zc_cookies[0] = cookie;
209 if (tx->tx_msg.ksm_zc_cookies[0] - tx->tx_msg.ksm_zc_cookies[1] > 2) {
210 /* not likely to carry more ACKs, skip it to simplify logic */
211 ksocknal_next_tx_carrier(conn);
217 /* takes two or more cookies already */
219 if (tx->tx_msg.ksm_zc_cookies[0] > tx->tx_msg.ksm_zc_cookies[1]) {
222 /* two separated cookies: (a+2, a) or (a+1, a) */
223 LASSERT (tx->tx_msg.ksm_zc_cookies[0] -
224 tx->tx_msg.ksm_zc_cookies[1] <= 2);
226 if (tx->tx_msg.ksm_zc_cookies[0] -
227 tx->tx_msg.ksm_zc_cookies[1] == 2) {
228 if (cookie == tx->tx_msg.ksm_zc_cookies[1] + 1)
230 } else if (cookie == tx->tx_msg.ksm_zc_cookies[1] - 1) {
231 tmp = tx->tx_msg.ksm_zc_cookies[1];
232 } else if (cookie == tx->tx_msg.ksm_zc_cookies[0] + 1) {
233 tmp = tx->tx_msg.ksm_zc_cookies[0];
237 /* range of cookies */
238 tx->tx_msg.ksm_zc_cookies[0] = tmp - 1;
239 tx->tx_msg.ksm_zc_cookies[1] = tmp + 1;
244 /* ksm_zc_cookies[0] < ksm_zc_cookies[1], it is range of cookies */
245 if (cookie >= tx->tx_msg.ksm_zc_cookies[0] &&
246 cookie <= tx->tx_msg.ksm_zc_cookies[1]) {
247 CWARN("%s: duplicated ZC cookie: %llu\n",
248 libcfs_id2str(conn->ksnc_peer->ksnp_id), cookie);
249 return 1; /* XXX: return error in the future */
252 if (cookie == tx->tx_msg.ksm_zc_cookies[1] + 1) {
253 tx->tx_msg.ksm_zc_cookies[1] = cookie;
257 if (cookie == tx->tx_msg.ksm_zc_cookies[0] - 1) {
258 tx->tx_msg.ksm_zc_cookies[0] = cookie;
263 /* failed to piggyback ZC-ACK */
264 if (tx_ack != NULL) {
265 list_add_tail(&tx_ack->tx_list, &conn->ksnc_tx_queue);
266 /* the next tx can piggyback at least 1 ACK */
267 ksocknal_next_tx_carrier(conn);
274 ksocknal_match_tx(struct ksock_conn *conn, struct ksock_tx *tx, int nonblk)
278 #if SOCKNAL_VERSION_DEBUG
279 if (!*ksocknal_tunables.ksnd_typed_conns)
280 return SOCKNAL_MATCH_YES;
283 if (tx == NULL || tx->tx_lnetmsg == NULL) {
285 nob = offsetof(struct ksock_msg, ksm_u);
287 nob = tx->tx_lnetmsg->msg_len +
288 ((conn->ksnc_proto == &ksocknal_protocol_v1x) ?
289 sizeof(struct lnet_hdr) : sizeof(struct ksock_msg));
292 /* default checking for typed connection */
293 switch (conn->ksnc_type) {
295 CERROR("ksnc_type bad: %u\n", conn->ksnc_type);
297 case SOCKLND_CONN_ANY:
298 return SOCKNAL_MATCH_YES;
300 case SOCKLND_CONN_BULK_IN:
301 return SOCKNAL_MATCH_MAY;
303 case SOCKLND_CONN_BULK_OUT:
304 if (nob < *ksocknal_tunables.ksnd_min_bulk)
305 return SOCKNAL_MATCH_MAY;
307 return SOCKNAL_MATCH_YES;
309 case SOCKLND_CONN_CONTROL:
310 if (nob >= *ksocknal_tunables.ksnd_min_bulk)
311 return SOCKNAL_MATCH_MAY;
313 return SOCKNAL_MATCH_YES;
318 ksocknal_match_tx_v3(struct ksock_conn *conn, struct ksock_tx *tx, int nonblk)
322 if (tx == NULL || tx->tx_lnetmsg == NULL)
323 nob = offsetof(struct ksock_msg, ksm_u);
325 nob = tx->tx_lnetmsg->msg_len + sizeof(struct ksock_msg);
327 switch (conn->ksnc_type) {
329 CERROR("ksnc_type bad: %u\n", conn->ksnc_type);
331 case SOCKLND_CONN_ANY:
332 return SOCKNAL_MATCH_NO;
334 case SOCKLND_CONN_ACK:
336 return SOCKNAL_MATCH_YES;
337 else if (tx == NULL || tx->tx_lnetmsg == NULL)
338 return SOCKNAL_MATCH_MAY;
340 return SOCKNAL_MATCH_NO;
342 case SOCKLND_CONN_BULK_OUT:
344 return SOCKNAL_MATCH_NO;
345 else if (nob < *ksocknal_tunables.ksnd_min_bulk)
346 return SOCKNAL_MATCH_MAY;
348 return SOCKNAL_MATCH_YES;
350 case SOCKLND_CONN_CONTROL:
352 return SOCKNAL_MATCH_NO;
353 else if (nob >= *ksocknal_tunables.ksnd_min_bulk)
354 return SOCKNAL_MATCH_MAY;
356 return SOCKNAL_MATCH_YES;
360 /* (Sink) handle incoming ZC request from sender */
362 ksocknal_handle_zcreq(struct ksock_conn *c, __u64 cookie, int remote)
364 struct ksock_peer_ni *peer_ni = c->ksnc_peer;
365 struct ksock_conn *conn;
369 read_lock(&ksocknal_data.ksnd_global_lock);
371 conn = ksocknal_find_conn_locked(peer_ni, NULL, !!remote);
373 struct ksock_sched *sched = conn->ksnc_scheduler;
375 LASSERT(conn->ksnc_proto->pro_queue_tx_zcack != NULL);
377 spin_lock_bh(&sched->kss_lock);
379 rc = conn->ksnc_proto->pro_queue_tx_zcack(conn, NULL, cookie);
381 spin_unlock_bh(&sched->kss_lock);
383 if (rc) { /* piggybacked */
384 read_unlock(&ksocknal_data.ksnd_global_lock);
389 read_unlock(&ksocknal_data.ksnd_global_lock);
391 /* ACK connection is not ready, or can't piggyback the ACK */
392 tx = ksocknal_alloc_tx_noop(cookie, !!remote);
396 if ((rc = ksocknal_launch_packet(peer_ni->ksnp_ni, tx, peer_ni->ksnp_id)) == 0)
399 ksocknal_free_tx(tx);
403 /* (Sender) handle ZC_ACK from sink */
405 ksocknal_handle_zcack(struct ksock_conn *conn, __u64 cookie1, __u64 cookie2)
407 struct ksock_peer_ni *peer_ni = conn->ksnc_peer;
409 struct ksock_tx *tmp;
416 count = (cookie1 > cookie2) ? 2 : (cookie2 - cookie1 + 1);
418 if (cookie2 == SOCKNAL_KEEPALIVE_PING &&
419 conn->ksnc_proto == &ksocknal_protocol_v3x) {
420 /* keepalive PING for V3.x, just ignore it */
421 return count == 1 ? 0 : -EPROTO;
424 spin_lock(&peer_ni->ksnp_lock);
426 list_for_each_entry_safe(tx, tmp,
427 &peer_ni->ksnp_zc_req_list, tx_zc_list) {
428 __u64 c = tx->tx_msg.ksm_zc_cookies[0];
430 if (c == cookie1 || c == cookie2 || (cookie1 < c && c < cookie2)) {
431 tx->tx_msg.ksm_zc_cookies[0] = 0;
432 list_move(&tx->tx_zc_list, &zlist);
439 spin_unlock(&peer_ni->ksnp_lock);
441 while (!list_empty(&zlist)) {
442 tx = list_entry(zlist.next, struct ksock_tx, tx_zc_list);
443 list_del(&tx->tx_zc_list);
444 ksocknal_tx_decref(tx);
447 return count == 0 ? 0 : -EPROTO;
451 ksocknal_send_hello_v1(struct ksock_conn *conn, struct ksock_hello_msg *hello)
453 struct socket *sock = conn->ksnc_sock;
454 struct lnet_hdr *hdr;
455 struct lnet_magicversion *hmv;
459 BUILD_BUG_ON(sizeof(struct lnet_magicversion) !=
460 offsetof(struct lnet_hdr, src_nid));
462 LIBCFS_ALLOC(hdr, sizeof(*hdr));
464 CERROR("Can't allocate struct lnet_hdr\n");
468 hmv = (struct lnet_magicversion *)&hdr->dest_nid;
470 /* Re-organize V2.x message header to V1.x (struct lnet_hdr)
471 * header and send out */
472 hmv->magic = cpu_to_le32 (LNET_PROTO_TCP_MAGIC);
473 hmv->version_major = cpu_to_le16 (KSOCK_PROTO_V1_MAJOR);
474 hmv->version_minor = cpu_to_le16 (KSOCK_PROTO_V1_MINOR);
476 if (the_lnet.ln_testprotocompat) {
477 /* single-shot proto check */
478 if (test_and_clear_bit(0, &the_lnet.ln_testprotocompat))
479 hmv->version_major++; /* just different! */
481 if (test_and_clear_bit(1, &the_lnet.ln_testprotocompat))
482 hmv->magic = LNET_PROTO_MAGIC;
485 hdr->src_nid = cpu_to_le64 (hello->kshm_src_nid);
486 hdr->src_pid = cpu_to_le32 (hello->kshm_src_pid);
487 hdr->type = cpu_to_le32 (LNET_MSG_HELLO);
488 hdr->payload_length = cpu_to_le32 (hello->kshm_nips * sizeof(__u32));
489 hdr->msg.hello.type = cpu_to_le32 (hello->kshm_ctype);
490 hdr->msg.hello.incarnation = cpu_to_le64 (hello->kshm_src_incarnation);
492 rc = lnet_sock_write(sock, hdr, sizeof(*hdr), lnet_acceptor_timeout());
494 CNETERR("Error %d sending HELLO hdr to %pI4h/%d\n",
495 rc, &conn->ksnc_ipaddr, conn->ksnc_port);
499 if (hello->kshm_nips == 0)
502 for (i = 0; i < (int) hello->kshm_nips; i++) {
503 hello->kshm_ips[i] = __cpu_to_le32 (hello->kshm_ips[i]);
506 rc = lnet_sock_write(sock, hello->kshm_ips,
507 hello->kshm_nips * sizeof(__u32),
508 lnet_acceptor_timeout());
510 CNETERR("Error %d sending HELLO payload (%d)"
511 " to %pI4h/%d\n", rc, hello->kshm_nips,
512 &conn->ksnc_ipaddr, conn->ksnc_port);
515 LIBCFS_FREE(hdr, sizeof(*hdr));
521 ksocknal_send_hello_v2(struct ksock_conn *conn, struct ksock_hello_msg *hello)
523 struct socket *sock = conn->ksnc_sock;
526 hello->kshm_magic = LNET_PROTO_MAGIC;
527 hello->kshm_version = conn->ksnc_proto->pro_version;
529 if (the_lnet.ln_testprotocompat) {
530 /* single-shot proto check */
531 if (test_and_clear_bit(0, &the_lnet.ln_testprotocompat))
532 hello->kshm_version++; /* just different! */
535 rc = lnet_sock_write(sock, hello, offsetof(struct ksock_hello_msg, kshm_ips),
536 lnet_acceptor_timeout());
539 CNETERR("Error %d sending HELLO hdr to %pI4h/%d\n",
540 rc, &conn->ksnc_ipaddr, conn->ksnc_port);
544 if (hello->kshm_nips == 0)
547 rc = lnet_sock_write(sock, hello->kshm_ips,
548 hello->kshm_nips * sizeof(__u32),
549 lnet_acceptor_timeout());
551 CNETERR("Error %d sending HELLO payload (%d)"
552 " to %pI4h/%d\n", rc, hello->kshm_nips,
553 &conn->ksnc_ipaddr, conn->ksnc_port);
560 ksocknal_recv_hello_v1(struct ksock_conn *conn, struct ksock_hello_msg *hello,
563 struct socket *sock = conn->ksnc_sock;
564 struct lnet_hdr *hdr;
568 LIBCFS_ALLOC(hdr, sizeof(*hdr));
570 CERROR("Can't allocate struct lnet_hdr\n");
574 rc = lnet_sock_read(sock, &hdr->src_nid,
575 sizeof(*hdr) - offsetof(struct lnet_hdr, src_nid),
578 CERROR("Error %d reading rest of HELLO hdr from %pI4h\n",
579 rc, &conn->ksnc_ipaddr);
580 LASSERT(rc < 0 && rc != -EALREADY);
584 /* ...and check we got what we expected */
585 if (hdr->type != cpu_to_le32 (LNET_MSG_HELLO)) {
586 CERROR ("Expecting a HELLO hdr,"
587 " but got type %d from %pI4h\n",
588 le32_to_cpu (hdr->type),
594 hello->kshm_src_nid = le64_to_cpu (hdr->src_nid);
595 hello->kshm_src_pid = le32_to_cpu (hdr->src_pid);
596 hello->kshm_src_incarnation = le64_to_cpu (hdr->msg.hello.incarnation);
597 hello->kshm_ctype = le32_to_cpu (hdr->msg.hello.type);
598 hello->kshm_nips = le32_to_cpu (hdr->payload_length) /
601 if (hello->kshm_nips > LNET_INTERFACES_NUM) {
602 CERROR("Bad nips %d from ip %pI4h\n",
603 hello->kshm_nips, &conn->ksnc_ipaddr);
608 if (hello->kshm_nips == 0)
611 rc = lnet_sock_read(sock, hello->kshm_ips,
612 hello->kshm_nips * sizeof(__u32), timeout);
614 CERROR("Error %d reading IPs from ip %pI4h\n",
615 rc, &conn->ksnc_ipaddr);
616 LASSERT(rc < 0 && rc != -EALREADY);
620 for (i = 0; i < (int) hello->kshm_nips; i++) {
621 hello->kshm_ips[i] = __le32_to_cpu(hello->kshm_ips[i]);
623 if (hello->kshm_ips[i] == 0) {
624 CERROR("Zero IP[%d] from ip %pI4h\n",
625 i, &conn->ksnc_ipaddr);
631 LIBCFS_FREE(hdr, sizeof(*hdr));
637 ksocknal_recv_hello_v2(struct ksock_conn *conn, struct ksock_hello_msg *hello,
640 struct socket *sock = conn->ksnc_sock;
644 if (hello->kshm_magic == LNET_PROTO_MAGIC)
649 rc = lnet_sock_read(sock, &hello->kshm_src_nid,
650 offsetof(struct ksock_hello_msg, kshm_ips) -
651 offsetof(struct ksock_hello_msg, kshm_src_nid),
654 CERROR("Error %d reading HELLO from %pI4h\n",
655 rc, &conn->ksnc_ipaddr);
656 LASSERT(rc < 0 && rc != -EALREADY);
660 if (conn->ksnc_flip) {
661 __swab32s(&hello->kshm_src_pid);
662 __swab64s(&hello->kshm_src_nid);
663 __swab32s(&hello->kshm_dst_pid);
664 __swab64s(&hello->kshm_dst_nid);
665 __swab64s(&hello->kshm_src_incarnation);
666 __swab64s(&hello->kshm_dst_incarnation);
667 __swab32s(&hello->kshm_ctype);
668 __swab32s(&hello->kshm_nips);
671 if (hello->kshm_nips > LNET_INTERFACES_NUM) {
672 CERROR("Bad nips %d from ip %pI4h\n",
673 hello->kshm_nips, &conn->ksnc_ipaddr);
677 if (hello->kshm_nips == 0)
680 rc = lnet_sock_read(sock, hello->kshm_ips,
681 hello->kshm_nips * sizeof(__u32), timeout);
683 CERROR("Error %d reading IPs from ip %pI4h\n",
684 rc, &conn->ksnc_ipaddr);
685 LASSERT(rc < 0 && rc != -EALREADY);
689 for (i = 0; i < (int) hello->kshm_nips; i++) {
691 __swab32s(&hello->kshm_ips[i]);
693 if (hello->kshm_ips[i] == 0) {
694 CERROR("Zero IP[%d] from ip %pI4h\n",
695 i, &conn->ksnc_ipaddr);
704 ksocknal_pack_msg_v1(struct ksock_tx *tx)
706 /* V1.x has no KSOCK_MSG_NOOP */
707 LASSERT(tx->tx_msg.ksm_type != KSOCK_MSG_NOOP);
708 LASSERT(tx->tx_lnetmsg != NULL);
710 tx->tx_iov[0].iov_base = (void *)&tx->tx_lnetmsg->msg_hdr;
711 tx->tx_iov[0].iov_len = sizeof(struct lnet_hdr);
713 tx->tx_nob = tx->tx_lnetmsg->msg_len + sizeof(struct lnet_hdr);
714 tx->tx_resid = tx->tx_nob;
718 ksocknal_pack_msg_v2(struct ksock_tx *tx)
720 tx->tx_iov[0].iov_base = (void *)&tx->tx_msg;
722 if (tx->tx_lnetmsg != NULL) {
723 LASSERT(tx->tx_msg.ksm_type != KSOCK_MSG_NOOP);
725 tx->tx_msg.ksm_u.lnetmsg.ksnm_hdr = tx->tx_lnetmsg->msg_hdr;
726 tx->tx_iov[0].iov_len = sizeof(struct ksock_msg);
727 tx->tx_resid = tx->tx_nob = sizeof(struct ksock_msg) + tx->tx_lnetmsg->msg_len;
729 LASSERT(tx->tx_msg.ksm_type == KSOCK_MSG_NOOP);
731 tx->tx_iov[0].iov_len = offsetof(struct ksock_msg, ksm_u.lnetmsg.ksnm_hdr);
732 tx->tx_resid = tx->tx_nob = offsetof(struct ksock_msg, ksm_u.lnetmsg.ksnm_hdr);
734 /* Don't checksum before start sending, because packet can be piggybacked with ACK */
738 ksocknal_unpack_msg_v1(struct ksock_msg *msg)
741 msg->ksm_type = KSOCK_MSG_LNET;
742 msg->ksm_zc_cookies[0] = msg->ksm_zc_cookies[1] = 0;
746 ksocknal_unpack_msg_v2(struct ksock_msg *msg)
748 return; /* Do nothing */
751 struct ksock_proto ksocknal_protocol_v1x =
753 .pro_version = KSOCK_PROTO_V1,
754 .pro_send_hello = ksocknal_send_hello_v1,
755 .pro_recv_hello = ksocknal_recv_hello_v1,
756 .pro_pack = ksocknal_pack_msg_v1,
757 .pro_unpack = ksocknal_unpack_msg_v1,
758 .pro_queue_tx_msg = ksocknal_queue_tx_msg_v1,
759 .pro_handle_zcreq = NULL,
760 .pro_handle_zcack = NULL,
761 .pro_queue_tx_zcack = NULL,
762 .pro_match_tx = ksocknal_match_tx
765 struct ksock_proto ksocknal_protocol_v2x =
767 .pro_version = KSOCK_PROTO_V2,
768 .pro_send_hello = ksocknal_send_hello_v2,
769 .pro_recv_hello = ksocknal_recv_hello_v2,
770 .pro_pack = ksocknal_pack_msg_v2,
771 .pro_unpack = ksocknal_unpack_msg_v2,
772 .pro_queue_tx_msg = ksocknal_queue_tx_msg_v2,
773 .pro_queue_tx_zcack = ksocknal_queue_tx_zcack_v2,
774 .pro_handle_zcreq = ksocknal_handle_zcreq,
775 .pro_handle_zcack = ksocknal_handle_zcack,
776 .pro_match_tx = ksocknal_match_tx
779 struct ksock_proto ksocknal_protocol_v3x =
781 .pro_version = KSOCK_PROTO_V3,
782 .pro_send_hello = ksocknal_send_hello_v2,
783 .pro_recv_hello = ksocknal_recv_hello_v2,
784 .pro_pack = ksocknal_pack_msg_v2,
785 .pro_unpack = ksocknal_unpack_msg_v2,
786 .pro_queue_tx_msg = ksocknal_queue_tx_msg_v2,
787 .pro_queue_tx_zcack = ksocknal_queue_tx_zcack_v3,
788 .pro_handle_zcreq = ksocknal_handle_zcreq,
789 .pro_handle_zcack = ksocknal_handle_zcack,
790 .pro_match_tx = ksocknal_match_tx_v3