2 * Copyright (C) 2009-2012 Cray, Inc.
4 * Author: Nic Henke <nic@cray.com>
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 /* this code liberated and modified from lnet/lnet/router_proc.c */
24 #define DEBUG_SUBSYSTEM S_LND
26 #include <linux/seq_file.h>
28 #define GNILND_PROC_STATS "stats"
29 #define GNILND_PROC_MDD "mdd"
30 #define GNILND_PROC_SMSG "smsg"
31 #define GNILND_PROC_CONN "conn"
32 #define GNILND_PROC_PEER_CONNS "peer_conns"
33 #define GNILND_PROC_PEER "peer"
34 #define GNILND_PROC_CKSUM_TEST "cksum_test"
37 _kgnilnd_proc_run_cksum_test(int caseno, int nloops, int nob)
39 lnet_kiov_t *src, *dest;
40 struct timespec begin, end, diff;
46 LIBCFS_ALLOC(src, LNET_MAX_IOV * sizeof(lnet_kiov_t));
47 LIBCFS_ALLOC(dest, LNET_MAX_IOV * sizeof(lnet_kiov_t));
49 if (src == NULL || dest == NULL) {
50 CERROR("couldn't allocate iovs\n");
51 GOTO(unwind, -ENOMEM);
54 for (i = 0; i < LNET_MAX_IOV; i++) {
55 src[i].kiov_offset = 0;
56 src[i].kiov_len = PAGE_SIZE;
57 src[i].kiov_page = alloc_page(__GFP_IO | __GFP_FS | __GFP_ZERO);
59 if (src[i].kiov_page == NULL) {
60 CERROR("couldn't allocate page %d\n", i);
61 GOTO(unwind, -ENOMEM);
64 dest[i].kiov_offset = 0;
65 dest[i].kiov_len = PAGE_SIZE;
66 dest[i].kiov_page = alloc_page(__GFP_IO | __GFP_FS | __GFP_ZERO);
68 if (dest[i].kiov_page == NULL) {
69 CERROR("couldn't allocate page %d\n", i);
70 GOTO(unwind, -ENOMEM);
74 /* add extra 2 pages - one for offset of src, 2nd to allow dest offset */
75 niov = (nob / PAGE_SIZE) + 2;
76 if (niov > LNET_MAX_IOV) {
77 CERROR("bytes %d too large, requires niov %d > %d\n",
78 nob, niov, LNET_MAX_IOV);
83 src[0].kiov_offset = 317;
84 dest[0].kiov_offset = 592;
91 dest[0].kiov_offset -= 1;
95 src[0].kiov_offset += 1;
99 src[0].kiov_offset += 1;
100 dest[0].kiov_offset -= 1;
102 src[0].kiov_len = PAGE_SIZE - src[0].kiov_offset;
103 dest[0].kiov_len = PAGE_SIZE - dest[0].kiov_offset;
105 for (i = 0; i < niov; i++) {
106 memset(page_address(src[i].kiov_page) + src[i].kiov_offset,
107 0xf0 + i, src[i].kiov_len);
110 lnet_copy_kiov2kiov(niov, dest, 0, niov, src, 0, nob);
112 getnstimeofday(&begin);
114 for (n = 0; n < nloops; n++) {
115 CDEBUG(D_BUFFS, "case %d loop %d src %d dest %d nob %d niov %d\n",
116 caseno, n, src[0].kiov_offset, dest[0].kiov_offset, nob, niov);
117 cksum = kgnilnd_cksum_kiov(niov, src, 0, nob - (n % nob), 1);
118 cksum2 = kgnilnd_cksum_kiov(niov, dest, 0, nob - (n % nob), 1);
120 if (cksum != cksum2) {
121 CERROR("case %d loop %d different checksums %x expected %x\n",
122 j, n, cksum2, cksum);
123 GOTO(unwind, -ENOKEY);
127 getnstimeofday(&end);
129 mbytes = (nloops * nob * 2) / (1024*1024);
131 diff = kgnilnd_ts_sub(end, begin);
133 LCONSOLE_INFO("running "LPD64"MB took %ld.%ld seconds\n",
134 mbytes, diff.tv_sec, diff.tv_nsec);
137 CDEBUG(D_NET, "freeing %d pages\n", i);
138 for (i -= 1; i >= 0; i--) {
139 if (src[i].kiov_page != NULL) {
140 __free_page(src[i].kiov_page);
142 if (dest[i].kiov_page != NULL) {
143 __free_page(dest[i].kiov_page);
148 LIBCFS_FREE(src, LNET_MAX_IOV * sizeof(lnet_kiov_t));
150 LIBCFS_FREE(dest, LNET_MAX_IOV * sizeof(lnet_kiov_t));
155 kgnilnd_proc_cksum_test_write(struct file *file, const char *ubuffer,
156 unsigned long count, void *data)
158 char dummy[256 + 1] = { '\0' };
159 int testno, nloops, nbytes;
162 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
163 CERROR("can't run cksum test, kgnilnd is not initialized yet\n");
167 if (count >= sizeof(dummy) || count == 0)
170 if (copy_from_user(dummy, ubuffer, count))
173 if (sscanf(dummy, "%d:%d:%d", &testno, &nloops, &nbytes) == 3) {
174 rc = _kgnilnd_proc_run_cksum_test(testno, nloops, nbytes);
178 /* spurious, but lets us know the parse was ok */
186 kgnilnd_proc_stats_read(char *page, char **start, off_t off,
187 int count, int *eof, void *data)
193 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
195 "kgnilnd is not initialized yet\n");
199 /* only do the first device */
200 dev = &kgnilnd_data.kgn_devices[0];
202 /* sampling is racy, but so is reading this file! */
204 do_gettimeofday(&now);
206 rc = sprintf(page, "time: %lu.%lu\n"
215 "GART map bytes: %ld\n"
216 "TX queued maps: %d\n"
217 "TX phys nmaps: %d\n"
218 "TX phys bytes: %lu\n"
219 "TX virt nmaps: %d\n"
220 "TX virt bytes: "LPU64"\n"
221 "RDMAQ bytes_auth: %ld\n"
222 "RDMAQ bytes_left: %ld\n"
223 "RDMAQ nstalls: %d\n"
224 "dev mutex delay: %ld\n"
226 "dev n_schedule: %d\n"
227 "SMSG fast_try: %d\n"
229 "SMSG fast_block: %d\n"
231 "SMSG tx_bytes: %ld\n"
233 "SMSG rx_bytes: %ld\n"
235 "RDMA tx_bytes: %ld\n"
237 "RDMA rx_bytes: %ld\n"
241 "RDMA REV length: %d\n"
242 "RDMA REV offset: %d\n"
243 "RDMA REV copy: %d\n",
244 now.tv_sec, now.tv_usec,
245 atomic_read(&kgnilnd_data.kgn_ntx),
246 atomic_read(&kgnilnd_data.kgn_npeers),
247 atomic_read(&kgnilnd_data.kgn_nconns),
248 atomic_read(&dev->gnd_neps),
249 atomic_read(&dev->gnd_ndgrams),
250 atomic_read(&dev->gnd_nfmablk),
251 atomic_read(&dev->gnd_n_mdd), atomic_read(&dev->gnd_n_mdd_held),
252 atomic64_read(&dev->gnd_nbytes_map),
253 atomic_read(&dev->gnd_nq_map),
254 dev->gnd_map_nphys, dev->gnd_map_physnop * PAGE_SIZE,
255 dev->gnd_map_nvirt, dev->gnd_map_virtnob,
256 atomic64_read(&dev->gnd_rdmaq_bytes_out),
257 atomic64_read(&dev->gnd_rdmaq_bytes_ok),
258 atomic_read(&dev->gnd_rdmaq_nstalls),
259 dev->gnd_mutex_delay,
260 atomic_read(&dev->gnd_n_yield), atomic_read(&dev->gnd_n_schedule),
261 atomic_read(&dev->gnd_fast_try), atomic_read(&dev->gnd_fast_ok),
262 atomic_read(&dev->gnd_fast_block),
263 atomic_read(&dev->gnd_short_ntx), atomic64_read(&dev->gnd_short_txbytes),
264 atomic_read(&dev->gnd_short_nrx), atomic64_read(&dev->gnd_short_rxbytes),
265 atomic_read(&dev->gnd_rdma_ntx), atomic64_read(&dev->gnd_rdma_txbytes),
266 atomic_read(&dev->gnd_rdma_nrx), atomic64_read(&dev->gnd_rdma_rxbytes),
267 atomic_read(&kgnilnd_data.kgn_nvmap_short),
268 atomic_read(&kgnilnd_data.kgn_nvmap_cksum),
269 atomic_read(&kgnilnd_data.kgn_nkmap_short),
270 atomic_read(&kgnilnd_data.kgn_rev_length),
271 atomic_read(&kgnilnd_data.kgn_rev_offset),
272 atomic_read(&kgnilnd_data.kgn_rev_copy_buff));
278 kgnilnd_proc_stats_write(struct file *file, const char *ubuffer,
279 unsigned long count, void *data)
283 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
284 CERROR("kgnilnd is not initialized for stats write\n");
288 /* only do the first device */
289 dev = &kgnilnd_data.kgn_devices[0];
291 atomic_set(&dev->gnd_short_ntx, 0);
292 atomic_set(&dev->gnd_short_nrx, 0);
293 atomic64_set(&dev->gnd_short_txbytes, 0);
294 atomic64_set(&dev->gnd_short_rxbytes, 0);
295 atomic_set(&dev->gnd_rdma_ntx, 0);
296 atomic_set(&dev->gnd_rdma_nrx, 0);
297 atomic_set(&dev->gnd_fast_ok, 0);
298 atomic_set(&dev->gnd_fast_try, 0);
299 atomic_set(&dev->gnd_fast_block, 0);
300 atomic64_set(&dev->gnd_rdma_txbytes, 0);
301 atomic64_set(&dev->gnd_rdma_rxbytes, 0);
302 atomic_set(&dev->gnd_rdmaq_nstalls, 0);
303 set_mb(dev->gnd_mutex_delay, 0);
304 atomic_set(&dev->gnd_n_yield, 0);
305 atomic_set(&dev->gnd_n_schedule, 0);
306 atomic_set(&kgnilnd_data.kgn_nvmap_short, 0);
307 atomic_set(&kgnilnd_data.kgn_nvmap_cksum, 0);
308 atomic_set(&kgnilnd_data.kgn_nkmap_short, 0);
309 /* sampling is racy, but so is writing this file! */
315 kgn_device_t *gmdd_dev;
318 } kgn_mdd_seq_iter_t;
321 kgnilnd_mdd_seq_seek(kgn_mdd_seq_iter_t *gseq, loff_t off)
329 gseq->gmdd_tx = NULL;
336 if (tx == NULL || gseq->gmdd_off > off) {
337 /* search from start */
338 r = gseq->gmdd_dev->gnd_map_list.next;
341 /* continue current search */
342 r = &tx->tx_map_list;
343 here = gseq->gmdd_off;
346 gseq->gmdd_off = off;
348 while (r != &gseq->gmdd_dev->gnd_map_list) {
351 t = list_entry(r, kgn_tx_t, tx_map_list);
362 gseq->gmdd_tx = NULL;
369 kgnilnd_mdd_seq_start(struct seq_file *s, loff_t *pos)
372 kgn_mdd_seq_iter_t *gseq;
375 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
379 LIBCFS_ALLOC(gseq, sizeof(*gseq));
381 CERROR("could not allocate mdd sequence iterator\n");
385 /* only doing device 0 for now */
386 gseq->gmdd_dev = &kgnilnd_data.kgn_devices[0];
387 gseq->gmdd_tx = NULL;
389 /* need to lock map while we poke - huge disturbance
390 * but without it, no way to get the data printed */
391 spin_lock(&gseq->gmdd_dev->gnd_map_lock);
393 /* set private to gseq for stop */
396 rc = kgnilnd_mdd_seq_seek(gseq, *pos);
404 kgnilnd_mdd_seq_stop(struct seq_file *s, void *iter)
406 kgn_mdd_seq_iter_t *gseq = s->private;
409 spin_unlock(&gseq->gmdd_dev->gnd_map_lock);
410 LIBCFS_FREE(gseq, sizeof(*gseq));
415 kgnilnd_mdd_seq_next(struct seq_file *s, void *iter, loff_t *pos)
417 kgn_mdd_seq_iter_t *gseq = iter;
419 loff_t next = *pos + 1;
421 rc = kgnilnd_mdd_seq_seek(gseq, next);
430 kgnilnd_mdd_seq_show(struct seq_file *s, void *iter)
432 kgn_mdd_seq_iter_t *gseq = iter;
438 gni_mem_handle_t hndl;
440 if (gseq->gmdd_off == 0) {
441 seq_printf(s, "%s %22s %16s %8s %8s %37s\n",
442 "tx", "tx_id", "nob", "physnop",
443 "buftype", "mem handle");
450 id = tx->tx_id.txe_smsg_id;
452 physnop = tx->tx_phys_npages;
453 buftype = tx->tx_buftype;
454 hndl.qword1 = tx->tx_map_key.qword1;
455 hndl.qword2 = tx->tx_map_key.qword2;
457 seq_printf(s, "%p %x %16"LPF64"u %8d %#8x "LPX64"."LPX64"x\n",
458 tx, id, nob, physnop, buftype,
459 hndl.qword1, hndl.qword2);
464 static struct seq_operations kgn_mdd_sops = {
465 .start = kgnilnd_mdd_seq_start,
466 .stop = kgnilnd_mdd_seq_stop,
467 .next = kgnilnd_mdd_seq_next,
468 .show = kgnilnd_mdd_seq_show,
473 kgnilnd_mdd_seq_open(struct inode *inode, struct file *file)
478 rc = seq_open(file, &kgn_mdd_sops);
480 sf = file->private_data;
482 /* NULL means we've not yet open() */
488 static struct file_operations kgn_mdd_fops = {
489 .owner = THIS_MODULE,
490 .open = kgnilnd_mdd_seq_open,
493 .release = seq_release,
498 kgn_device_t *gsmsg_dev;
499 kgn_fma_memblock_t *gsmsg_fmablk;
501 } kgn_smsg_seq_iter_t;
504 kgnilnd_smsg_seq_seek(kgn_smsg_seq_iter_t *gseq, loff_t off)
506 kgn_fma_memblock_t *fmablk;
512 /* offset 0 is the header, so we start real entries at
513 * here == off == 1 */
515 gseq->gsmsg_fmablk = NULL;
520 fmablk = gseq->gsmsg_fmablk;
521 dev = gseq->gsmsg_dev;
523 spin_lock(&dev->gnd_fmablk_lock);
525 if (fmablk != NULL &&
526 gseq->gsmsg_version != atomic_read(&dev->gnd_fmablk_vers)) {
532 if (fmablk == NULL || gseq->gsmsg_off > off) {
533 /* search from start */
534 r = dev->gnd_fma_buffs.next;
537 /* continue current search */
538 r = &fmablk->gnm_bufflist;
539 here = gseq->gsmsg_off;
542 gseq->gsmsg_version = atomic_read(&dev->gnd_fmablk_vers);
543 gseq->gsmsg_off = off;
545 while (r != &dev->gnd_fma_buffs) {
546 kgn_fma_memblock_t *t;
548 t = list_entry(r, kgn_fma_memblock_t, gnm_bufflist);
551 gseq->gsmsg_fmablk = t;
559 gseq->gsmsg_fmablk = NULL;
562 spin_unlock(&dev->gnd_fmablk_lock);
567 kgnilnd_smsg_seq_start(struct seq_file *s, loff_t *pos)
570 kgn_smsg_seq_iter_t *gseq;
573 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
577 LIBCFS_ALLOC(gseq, sizeof(*gseq));
579 CERROR("could not allocate smsg sequence iterator\n");
583 /* only doing device 0 for now */
584 gseq->gsmsg_dev = &kgnilnd_data.kgn_devices[0];
585 gseq->gsmsg_fmablk = NULL;
586 rc = kgnilnd_smsg_seq_seek(gseq, *pos);
590 LIBCFS_FREE(gseq, sizeof(*gseq));
595 kgnilnd_smsg_seq_stop(struct seq_file *s, void *iter)
597 kgn_smsg_seq_iter_t *gseq = iter;
600 LIBCFS_FREE(gseq, sizeof(*gseq));
604 kgnilnd_smsg_seq_next(struct seq_file *s, void *iter, loff_t *pos)
606 kgn_smsg_seq_iter_t *gseq = iter;
608 loff_t next = *pos + 1;
610 rc = kgnilnd_smsg_seq_seek(gseq, next);
612 LIBCFS_FREE(gseq, sizeof(*gseq));
620 kgnilnd_smsg_seq_show(struct seq_file *s, void *iter)
622 kgn_smsg_seq_iter_t *gseq = iter;
623 kgn_fma_memblock_t *fmablk;
625 int avail_mboxs, held_mboxs, num_mboxs;
626 unsigned int blk_size;
628 kgn_fmablk_state_t state;
629 gni_mem_handle_t hndl;
631 if (gseq->gsmsg_off == 0) {
632 seq_printf(s, "%5s %4s %6s/%5s/%5s %9s %18s %37s\n",
633 "blk#", "type", "avail", "held", "total", "size",
634 "fmablk", "mem handle");
638 fmablk = gseq->gsmsg_fmablk;
639 dev = gseq->gsmsg_dev;
640 LASSERT(fmablk != NULL);
642 spin_lock(&dev->gnd_fmablk_lock);
644 if (gseq->gsmsg_version != atomic_read(&dev->gnd_fmablk_vers)) {
646 spin_unlock(&dev->gnd_fmablk_lock);
650 live = fmablk->gnm_hold_timeout == 0;
651 /* none are available if it isn't live... */
652 avail_mboxs = live ? fmablk->gnm_avail_mboxs : 0;
653 held_mboxs = fmablk->gnm_held_mboxs;
654 num_mboxs = fmablk->gnm_num_mboxs;
655 blk_size = fmablk->gnm_blk_size;
656 state = fmablk->gnm_state;
657 hndl.qword1 = fmablk->gnm_hndl.qword1;
658 hndl.qword2 = fmablk->gnm_hndl.qword2;
660 spin_unlock(&dev->gnd_fmablk_lock);
663 seq_printf(s, "%5d %4s %6d/%5d/%5d %9d %18p "LPX64"."LPX64"\n",
664 (int) gseq->gsmsg_off, kgnilnd_fmablk_state2str(state),
665 avail_mboxs, held_mboxs, num_mboxs, blk_size,
666 fmablk, hndl.qword1, hndl.qword2);
668 seq_printf(s, "%5d %4s %6d/%5d/%5d %9d %18p %37s\n",
669 (int) gseq->gsmsg_off, kgnilnd_fmablk_state2str(state),
670 avail_mboxs, held_mboxs, num_mboxs, blk_size,
671 fmablk, "PURGATORY.HOLD");
677 static struct seq_operations kgn_smsg_sops = {
678 .start = kgnilnd_smsg_seq_start,
679 .stop = kgnilnd_smsg_seq_stop,
680 .next = kgnilnd_smsg_seq_next,
681 .show = kgnilnd_smsg_seq_show,
686 kgnilnd_smsg_seq_open(struct inode *inode, struct file *file)
688 struct proc_dir_entry *dp = PDE(inode);
692 rc = seq_open(file, &kgn_smsg_sops);
694 sf = file->private_data;
695 sf->private = dp->data;
701 static struct file_operations kgn_smsg_fops = {
702 .owner = THIS_MODULE,
703 .open = kgnilnd_smsg_seq_open,
706 .release = seq_release,
711 struct list_head *gconn_list;
712 kgn_conn_t *gconn_conn;
715 } kgn_conn_seq_iter_t;
718 kgnilnd_conn_seq_seek(kgn_conn_seq_iter_t *gseq, loff_t off)
720 struct list_head *list, *tmp;
725 gseq->gconn_hashidx = 0;
726 gseq->gconn_list = NULL;
729 if (off > atomic_read(&kgnilnd_data.kgn_nconns)) {
730 gseq->gconn_list = NULL;
734 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
735 if (gseq->gconn_list != NULL &&
736 gseq->gconn_version != kgnilnd_data.kgn_conn_version) {
742 if ((gseq->gconn_list == NULL) ||
743 (gseq->gconn_off > off) ||
744 (gseq->gconn_hashidx >= *kgnilnd_tunables.kgn_peer_hash_size)) {
745 /* search from start */
746 gseq->gconn_hashidx = 0;
747 list = &kgnilnd_data.kgn_conns[gseq->gconn_hashidx];
750 /* continue current search */
751 list = gseq->gconn_list;
754 gseq->gconn_version = kgnilnd_data.kgn_conn_version;
755 gseq->gconn_off = off;
759 list_for_each(tmp, list) {
762 conn = list_entry(tmp, kgn_conn_t, gnc_hashlist);
763 gseq->gconn_conn = conn;
769 /* if we got through this hash bucket with 'off' still to go, try next*/
770 gseq->gconn_hashidx++;
772 (gseq->gconn_hashidx < *kgnilnd_tunables.kgn_peer_hash_size)) {
773 list = &kgnilnd_data.kgn_conns[gseq->gconn_hashidx];
777 gseq->gconn_list = NULL;
780 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
785 kgnilnd_conn_seq_start(struct seq_file *s, loff_t *pos)
788 kgn_conn_seq_iter_t *gseq;
791 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
795 LIBCFS_ALLOC(gseq, sizeof(*gseq));
797 CERROR("could not allocate conn sequence iterator\n");
801 /* only doing device 0 for now */
802 gseq->gconn_list = NULL;
803 rc = kgnilnd_conn_seq_seek(gseq, *pos);
807 LIBCFS_FREE(gseq, sizeof(*gseq));
812 kgnilnd_conn_seq_stop(struct seq_file *s, void *iter)
814 kgn_conn_seq_iter_t *gseq = iter;
817 LIBCFS_FREE(gseq, sizeof(*gseq));
821 kgnilnd_conn_seq_next(struct seq_file *s, void *iter, loff_t *pos)
823 kgn_conn_seq_iter_t *gseq = iter;
825 loff_t next = *pos + 1;
827 rc = kgnilnd_conn_seq_seek(gseq, next);
829 LIBCFS_FREE(gseq, sizeof(*gseq));
837 kgnilnd_conn_seq_show(struct seq_file *s, void *iter)
839 kgn_conn_seq_iter_t *gseq = iter;
840 kgn_peer_t *peer = NULL;
843 /* there is no header data for conns, so offset 0 is the first
846 conn = gseq->gconn_conn;
847 LASSERT(conn != NULL);
849 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
850 if (gseq->gconn_list != NULL &&
851 gseq->gconn_version != kgnilnd_data.kgn_conn_version) {
853 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
857 /* instead of saving off the data, just refcount */
858 kgnilnd_conn_addref(conn);
859 if (conn->gnc_peer) {
860 /* don't use link - after unlock it could get nuked */
861 peer = conn->gnc_peer;
862 kgnilnd_peer_addref(peer);
865 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
867 seq_printf(s, "%p->%s [%d] q %d/%d/%d "
868 "tx sq %u %dms/%dms "
869 "rx sq %u %dms/%dms "
870 "noop r/s %d/%d w/s/cq %lds/%lds/%lds "
871 "sched a/d %lds/%lds "
872 "tx_re "LPD64" TO %ds %s\n",
873 conn, peer ? libcfs_nid2str(peer->gnp_nid) : "<?>",
874 atomic_read(&conn->gnc_refcount),
875 kgnilnd_count_list(&conn->gnc_fmaq),
876 atomic_read(&conn->gnc_nlive_fma),
877 atomic_read(&conn->gnc_nlive_rdma),
879 jiffies_to_msecs(jiffies - conn->gnc_last_tx),
880 jiffies_to_msecs(jiffies - conn->gnc_last_tx_cq),
882 jiffies_to_msecs(jiffies - conn->gnc_last_rx),
883 jiffies_to_msecs(jiffies - conn->gnc_last_rx_cq),
884 atomic_read(&conn->gnc_reaper_noop),
885 atomic_read(&conn->gnc_sched_noop),
886 cfs_duration_sec(jiffies - conn->gnc_last_noop_want),
887 cfs_duration_sec(jiffies - conn->gnc_last_noop_sent),
888 cfs_duration_sec(jiffies - conn->gnc_last_noop_cq),
889 cfs_duration_sec(jiffies - conn->gnc_last_sched_ask),
890 cfs_duration_sec(jiffies - conn->gnc_last_sched_do),
891 conn->gnc_tx_retrans, conn->gnc_timeout,
892 kgnilnd_conn_state2str(conn));
895 kgnilnd_peer_decref(peer);
896 kgnilnd_conn_decref(conn);
901 static struct seq_operations kgn_conn_sops = {
902 .start = kgnilnd_conn_seq_start,
903 .stop = kgnilnd_conn_seq_stop,
904 .next = kgnilnd_conn_seq_next,
905 .show = kgnilnd_conn_seq_show,
909 #define KGN_DEBUG_PEER_NID_DEFAULT -1
910 static int kgnilnd_debug_peer_nid = KGN_DEBUG_PEER_NID_DEFAULT;
913 kgnilnd_proc_peer_conns_write(struct file *file, const char *ubuffer,
914 unsigned long count, void *data)
919 if (count >= sizeof(dummy) || count == 0)
922 if (copy_from_user(dummy, ubuffer, count))
925 rc = sscanf(dummy, "%d", &kgnilnd_debug_peer_nid);
934 /* debug data to print from conns associated with peer nid
937 - mbox_addr (msg_buffer + mbox_offset)
956 kgnilnd_proc_peer_conns_read(char *page, char **start, off_t off,
957 int count, int *eof, void *data)
967 if (kgnilnd_debug_peer_nid == KGN_DEBUG_PEER_NID_DEFAULT) {
968 rc = sprintf(page, "peer_conns not initialized\n");
972 /* sample date/time stamp - print time in UTC
973 * 2012-12-11T16:06:16.966751 123@gni ...
975 getnstimeofday(&now);
976 time_to_tm(now.tv_sec, 0, &ctm);
979 write_lock(&kgnilnd_data.kgn_peer_conn_lock);
980 peer = kgnilnd_find_peer_locked(kgnilnd_debug_peer_nid);
983 rc = sprintf(page, "peer not found for this nid %d\n",
984 kgnilnd_debug_peer_nid);
985 write_unlock(&kgnilnd_data.kgn_peer_conn_lock);
989 list_for_each_entry(conn, &peer->gnp_conns, gnc_list) {
990 len += scnprintf(page, count - len,
991 "%04ld-%02d-%02dT%02d:%02d:%02d.%06ld %s "
997 "err %d peer err %d "
998 "tx sq %u %dms/%dms "
999 "rx sq %u %dms/%dms/%dms "
1001 ctm.tm_year+1900, ctm.tm_mon+1, ctm.tm_mday,
1002 ctm.tm_hour, ctm.tm_min, ctm.tm_sec, now.tv_nsec,
1003 libcfs_nid2str(peer->gnp_nid),
1004 conn->remote_mbox_addr,
1005 kgnilnd_conn_dgram_type2str(conn->gnc_dgram_type),
1006 kgnilnd_conn_state2str(conn),
1007 conn->gnc_in_purgatory,
1008 conn->gnc_close_sent,
1009 conn->gnc_close_recvd,
1011 conn->gnc_peer_error,
1013 jiffies_to_msecs(jifs - conn->gnc_last_tx),
1014 jiffies_to_msecs(jifs - conn->gnc_last_tx_cq),
1016 jiffies_to_msecs(jifs - conn->gnc_first_rx),
1017 jiffies_to_msecs(jifs - conn->gnc_last_rx),
1018 jiffies_to_msecs(jifs - conn->gnc_last_rx_cq),
1019 conn->gnc_tx_retrans);
1022 write_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1027 kgnilnd_conn_seq_open(struct inode *inode, struct file *file)
1029 struct proc_dir_entry *dp = PDE(inode);
1030 struct seq_file *sf;
1033 rc = seq_open(file, &kgn_conn_sops);
1035 sf = file->private_data;
1036 sf->private = dp->data;
1042 static struct file_operations kgn_conn_fops = {
1043 .owner = THIS_MODULE,
1044 .open = kgnilnd_conn_seq_open,
1046 .llseek = seq_lseek,
1047 .release = seq_release,
1051 __u64 gpeer_version;
1052 struct list_head *gpeer_list;
1053 kgn_peer_t *gpeer_peer;
1056 } kgn_peer_seq_iter_t;
1059 kgnilnd_peer_seq_seek(kgn_peer_seq_iter_t *gseq, loff_t off)
1061 struct list_head *list, *tmp;
1066 gseq->gpeer_hashidx = 0;
1067 gseq->gpeer_list = NULL;
1070 if (off > atomic_read(&kgnilnd_data.kgn_npeers)) {
1071 gseq->gpeer_list = NULL;
1075 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
1076 if (gseq->gpeer_list != NULL &&
1077 gseq->gpeer_version != kgnilnd_data.kgn_peer_version) {
1083 if ((gseq->gpeer_list == NULL) ||
1084 (gseq->gpeer_off > off) ||
1085 (gseq->gpeer_hashidx >= *kgnilnd_tunables.kgn_peer_hash_size)) {
1086 /* search from start */
1087 gseq->gpeer_hashidx = 0;
1088 list = &kgnilnd_data.kgn_peers[gseq->gpeer_hashidx];
1091 /* continue current search */
1092 list = gseq->gpeer_list;
1095 gseq->gpeer_version = kgnilnd_data.kgn_peer_version;
1096 gseq->gpeer_off = off;
1100 list_for_each(tmp, list) {
1103 peer = list_entry(tmp, kgn_peer_t, gnp_list);
1104 gseq->gpeer_peer = peer;
1110 /* if we got through this hash bucket with 'off' still to go, try next*/
1111 gseq->gpeer_hashidx++;
1112 if ((here <= off) &&
1113 (gseq->gpeer_hashidx < *kgnilnd_tunables.kgn_peer_hash_size)) {
1114 list = &kgnilnd_data.kgn_peers[gseq->gpeer_hashidx];
1118 gseq->gpeer_list = NULL;
1121 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1126 kgnilnd_peer_seq_start(struct seq_file *s, loff_t *pos)
1129 kgn_peer_seq_iter_t *gseq;
1132 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
1136 LIBCFS_ALLOC(gseq, sizeof(*gseq));
1138 CERROR("could not allocate peer sequence iterator\n");
1142 /* only doing device 0 for now */
1143 gseq->gpeer_list = NULL;
1144 rc = kgnilnd_peer_seq_seek(gseq, *pos);
1148 LIBCFS_FREE(gseq, sizeof(*gseq));
1153 kgnilnd_peer_seq_stop(struct seq_file *s, void *iter)
1155 kgn_peer_seq_iter_t *gseq = iter;
1158 LIBCFS_FREE(gseq, sizeof(*gseq));
1162 kgnilnd_peer_seq_next(struct seq_file *s, void *iter, loff_t *pos)
1164 kgn_peer_seq_iter_t *gseq = iter;
1166 loff_t next = *pos + 1;
1168 rc = kgnilnd_peer_seq_seek(gseq, next);
1170 LIBCFS_FREE(gseq, sizeof(*gseq));
1178 kgnilnd_peer_seq_show(struct seq_file *s, void *iter)
1180 kgn_peer_seq_iter_t *gseq = iter;
1185 /* there is no header data for peers, so offset 0 is the first
1188 peer = gseq->gpeer_peer;
1189 LASSERT(peer != NULL);
1191 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
1192 if (gseq->gpeer_list != NULL &&
1193 gseq->gpeer_version != kgnilnd_data.kgn_peer_version) {
1195 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1199 /* instead of saving off the data, just refcount */
1200 kgnilnd_peer_addref(peer);
1201 conn = kgnilnd_find_conn_locked(peer);
1203 if (peer->gnp_connecting) {
1205 } else if (conn != NULL) {
1211 list_for_each_entry(conn, &peer->gnp_conns, gnc_list) {
1212 if (conn->gnc_in_purgatory) {
1217 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1219 seq_printf(s, "%p->%s [%d] %s NIC 0x%x q %d conn %c purg %d "
1220 "last %d@%dms dgram %d@%dms "
1221 "reconn %dms to %lus \n",
1222 peer, libcfs_nid2str(peer->gnp_nid),
1223 atomic_read(&peer->gnp_refcount),
1224 (peer->gnp_down == GNILND_RCA_NODE_DOWN) ? "down" : "up",
1226 kgnilnd_count_list(&peer->gnp_tx_queue),
1229 peer->gnp_last_errno,
1230 jiffies_to_msecs(jiffies - peer->gnp_last_alive),
1231 peer->gnp_last_dgram_errno,
1232 jiffies_to_msecs(jiffies - peer->gnp_last_dgram_time),
1233 peer->gnp_reconnect_interval != 0
1234 ? jiffies_to_msecs(jiffies - peer->gnp_reconnect_time)
1236 peer->gnp_reconnect_interval);
1238 kgnilnd_peer_decref(peer);
1243 static struct seq_operations kgn_peer_sops = {
1244 .start = kgnilnd_peer_seq_start,
1245 .stop = kgnilnd_peer_seq_stop,
1246 .next = kgnilnd_peer_seq_next,
1247 .show = kgnilnd_peer_seq_show,
1251 kgnilnd_peer_seq_open(struct inode *inode, struct file *file)
1253 struct proc_dir_entry *dp = PDE(inode);
1254 struct seq_file *sf;
1257 rc = seq_open(file, &kgn_peer_sops);
1259 sf = file->private_data;
1260 sf->private = dp->data;
1266 static struct file_operations kgn_peer_fops = {
1267 .owner = THIS_MODULE,
1268 .open = kgnilnd_peer_seq_open,
1270 .llseek = seq_lseek,
1271 .release = seq_release,
1274 static struct proc_dir_entry *kgn_proc_root;
1277 kgnilnd_proc_init(void)
1279 struct proc_dir_entry *pde;
1284 kgn_proc_root = proc_mkdir(libcfs_lnd2modname(GNILND), NULL);
1285 if (kgn_proc_root == NULL) {
1286 CERROR("couldn't create proc dir %s\n",
1287 libcfs_lnd2modname(GNILND));
1291 /* Initialize CKSUM_TEST */
1292 pde = create_proc_entry(GNILND_PROC_CKSUM_TEST, 0200, kgn_proc_root);
1294 CERROR("couldn't create proc entry %s\n", GNILND_PROC_CKSUM_TEST);
1296 GOTO(remove_dir, rc);
1300 pde->write_proc = kgnilnd_proc_cksum_test_write;
1302 /* Initialize STATS */
1303 pde = create_proc_entry(GNILND_PROC_STATS, 0644, kgn_proc_root);
1305 CERROR("couldn't create proc entry %s\n", GNILND_PROC_STATS);
1307 GOTO(remove_test, rc);
1311 pde->read_proc = kgnilnd_proc_stats_read;
1312 pde->write_proc = kgnilnd_proc_stats_write;
1314 /* Initialize MDD */
1315 pde = create_proc_entry(GNILND_PROC_MDD, 0444, kgn_proc_root);
1317 CERROR("couldn't create proc entry %s\n", GNILND_PROC_MDD);
1319 GOTO(remove_stats, rc);
1323 pde->proc_fops = &kgn_mdd_fops;
1325 /* Initialize SMSG */
1326 pde = create_proc_entry(GNILND_PROC_SMSG, 0444, kgn_proc_root);
1328 CERROR("couldn't create proc entry %s\n", GNILND_PROC_SMSG);
1330 GOTO(remove_mdd, rc);
1334 pde->proc_fops = &kgn_smsg_fops;
1336 /* Initialize CONN */
1337 pde = create_proc_entry(GNILND_PROC_CONN, 0444, kgn_proc_root);
1339 CERROR("couldn't create proc entry %s\n", GNILND_PROC_CONN);
1341 GOTO(remove_smsg, rc);
1345 pde->proc_fops = &kgn_conn_fops;
1347 /* Initialize peer conns debug */
1348 pde = create_proc_entry(GNILND_PROC_PEER_CONNS, 0644, kgn_proc_root);
1350 CERROR("couldn't create proc entry %s\n", GNILND_PROC_PEER_CONNS);
1352 GOTO(remove_conn, rc);
1356 pde->read_proc = kgnilnd_proc_peer_conns_read;
1357 pde->write_proc = kgnilnd_proc_peer_conns_write;
1359 /* Initialize PEER */
1360 pde = create_proc_entry(GNILND_PROC_PEER, 0444, kgn_proc_root);
1362 CERROR("couldn't create proc entry %s\n", GNILND_PROC_PEER);
1364 GOTO(remove_pc, rc);
1368 pde->proc_fops = &kgn_peer_fops;
1372 remove_proc_entry(GNILND_PROC_PEER_CONNS, kgn_proc_root);
1374 remove_proc_entry(GNILND_PROC_CONN, kgn_proc_root);
1376 remove_proc_entry(GNILND_PROC_SMSG, kgn_proc_root);
1378 remove_proc_entry(GNILND_PROC_MDD, kgn_proc_root);
1380 remove_proc_entry(GNILND_PROC_STATS, kgn_proc_root);
1382 remove_proc_entry(GNILND_PROC_CKSUM_TEST, kgn_proc_root);
1384 remove_proc_entry(kgn_proc_root->name, NULL);
1390 kgnilnd_proc_fini(void)
1392 remove_proc_entry(GNILND_PROC_PEER_CONNS, kgn_proc_root);
1393 remove_proc_entry(GNILND_PROC_PEER, kgn_proc_root);
1394 remove_proc_entry(GNILND_PROC_CONN, kgn_proc_root);
1395 remove_proc_entry(GNILND_PROC_MDD, kgn_proc_root);
1396 remove_proc_entry(GNILND_PROC_SMSG, kgn_proc_root);
1397 remove_proc_entry(GNILND_PROC_STATS, kgn_proc_root);
1398 remove_proc_entry(GNILND_PROC_CKSUM_TEST, kgn_proc_root);
1399 remove_proc_entry(kgn_proc_root->name, NULL);