2 * Copyright (C) 2009-2012, 2016 Cray, Inc.
4 * Copyright (c) 2013, 2015, Intel Corporation.
6 * Author: Nic Henke <nic@cray.com>
7 * Author: James Shimek <jshimek@cray.com>
9 * This file is part of Lustre, http://www.lustre.org.
11 * Lustre is free software; you can redistribute it and/or
12 * modify it under the terms of version 2 of the GNU General Public
13 * License as published by the Free Software Foundation.
15 * Lustre is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with Lustre; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 /* this code liberated and modified from lnet/lnet/router_proc.c */
27 #define DEBUG_SUBSYSTEM S_LND
29 #include <linux/seq_file.h>
30 #include <lprocfs_status.h>
32 #define GNILND_PROC_STATS "stats"
33 #define GNILND_PROC_MDD "mdd"
34 #define GNILND_PROC_SMSG "smsg"
35 #define GNILND_PROC_CONN "conn"
36 #define GNILND_PROC_PEER_CONNS "peer_conns"
37 #define GNILND_PROC_PEER "peer"
38 #define GNILND_PROC_CKSUM_TEST "cksum_test"
41 _kgnilnd_proc_run_cksum_test(int caseno, int nloops, int nob)
43 lnet_kiov_t *src, *dest;
44 struct timespec begin, end, diff;
51 LIBCFS_ALLOC(src, LNET_MAX_IOV * sizeof(lnet_kiov_t));
52 LIBCFS_ALLOC(dest, LNET_MAX_IOV * sizeof(lnet_kiov_t));
54 if (src == NULL || dest == NULL) {
55 CERROR("couldn't allocate iovs\n");
56 GOTO(unwind, rc = -ENOMEM);
59 for (i = 0; i < LNET_MAX_IOV; i++) {
60 src[i].kiov_offset = 0;
61 src[i].kiov_len = PAGE_SIZE;
62 src[i].kiov_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
64 if (src[i].kiov_page == NULL) {
65 CERROR("couldn't allocate page %d\n", i);
66 GOTO(unwind, rc = -ENOMEM);
69 dest[i].kiov_offset = 0;
70 dest[i].kiov_len = PAGE_SIZE;
71 dest[i].kiov_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
73 if (dest[i].kiov_page == NULL) {
74 CERROR("couldn't allocate page %d\n", i);
75 GOTO(unwind, rc = -ENOMEM);
79 /* add extra 2 pages - one for offset of src, 2nd to allow dest offset */
80 niov = (nob / PAGE_SIZE) + 2;
81 if (niov > LNET_MAX_IOV) {
82 CERROR("bytes %d too large, requires niov %d > %d\n",
83 nob, niov, LNET_MAX_IOV);
84 GOTO(unwind, rc = -E2BIG);
88 src[0].kiov_offset = 317;
89 dest[0].kiov_offset = 592;
96 dest[0].kiov_offset -= 1;
100 src[0].kiov_offset += 1;
104 src[0].kiov_offset += 1;
105 dest[0].kiov_offset -= 1;
107 src[0].kiov_len = PAGE_SIZE - src[0].kiov_offset;
108 dest[0].kiov_len = PAGE_SIZE - dest[0].kiov_offset;
110 for (i = 0; i < niov; i++) {
111 memset(page_address(src[i].kiov_page) + src[i].kiov_offset,
112 0xf0 + i, src[i].kiov_len);
115 lnet_copy_kiov2kiov(niov, dest, 0, niov, src, 0, nob);
117 getnstimeofday(&begin);
119 for (n = 0; n < nloops; n++) {
120 CDEBUG(D_BUFFS, "case %d loop %d src %d dest %d nob %d niov %d\n",
121 caseno, n, src[0].kiov_offset, dest[0].kiov_offset, nob, niov);
122 cksum = kgnilnd_cksum_kiov(niov, src, 0, nob - (n % nob), 1);
123 cksum2 = kgnilnd_cksum_kiov(niov, dest, 0, nob - (n % nob), 1);
125 if (cksum != cksum2) {
126 CERROR("case %d loop %d different checksums %x expected %x\n",
127 j, n, cksum2, cksum);
128 GOTO(unwind, rc = -ENOKEY);
132 getnstimeofday(&end);
134 mbytes = ((__u64)nloops * nob * 2) / (1024*1024);
136 diff = kgnilnd_ts_sub(end, begin);
138 LCONSOLE_INFO("running %lldMB took %ld.%ld seconds\n",
139 mbytes, diff.tv_sec, diff.tv_nsec);
142 CDEBUG(D_NET, "freeing %d pages\n", i);
143 for (i -= 1; i >= 0; i--) {
144 if (src[i].kiov_page != NULL) {
145 __free_page(src[i].kiov_page);
147 if (dest[i].kiov_page != NULL) {
148 __free_page(dest[i].kiov_page);
153 LIBCFS_FREE(src, LNET_MAX_IOV * sizeof(lnet_kiov_t));
155 LIBCFS_FREE(dest, LNET_MAX_IOV * sizeof(lnet_kiov_t));
160 kgnilnd_proc_cksum_test_write(struct file *file, const char __user *ubuffer,
161 size_t count, loff_t *ppos)
163 char dummy[256 + 1] = { '\0' };
164 int testno, nloops, nbytes;
168 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
169 CERROR("can't run cksum test, kgnilnd is not initialized yet\n");
173 if (count >= sizeof(dummy) || count == 0)
176 if (copy_from_user(dummy, ubuffer, count))
179 if (sscanf(dummy, "%d:%d:%d", &testno, &nloops, &nbytes) == 3) {
180 rc = _kgnilnd_proc_run_cksum_test(testno, nloops, nbytes);
184 /* spurious, but lets us know the parse was ok */
192 kgnilnd_cksum_test_seq_open(struct inode *inode, struct file *file)
194 return single_open(file, NULL, PDE_DATA(inode));
197 static const struct file_operations kgn_cksum_test_fops = {
198 .owner = THIS_MODULE,
199 .open = kgnilnd_cksum_test_seq_open,
200 .write = kgnilnd_proc_cksum_test_write,
202 .release = seq_release,
206 kgnilnd_stats_seq_show(struct seq_file *sf, void *v)
212 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
213 rc = seq_printf(sf, "kgnilnd is not initialized yet\n");
217 /* only do the first device */
218 dev = &kgnilnd_data.kgn_devices[0];
220 /* sampling is racy, but so is reading this file! */
222 do_gettimeofday(&now);
224 rc = seq_printf(sf, "time: %lu.%lu\n"
233 "n_eager_allocs: %d\n"
234 "GART map bytes: %ld\n"
235 "TX queued maps: %d\n"
236 "TX phys nmaps: %d\n"
237 "TX phys bytes: %lu\n"
238 "TX virt nmaps: %d\n"
239 "TX virt bytes: %llu\n"
240 "RDMAQ bytes_auth: %ld\n"
241 "RDMAQ bytes_left: %ld\n"
242 "RDMAQ nstalls: %d\n"
243 "dev mutex delay: %ld\n"
245 "dev n_schedule: %d\n"
246 "SMSG fast_try: %d\n"
248 "SMSG fast_block: %d\n"
250 "SMSG tx_bytes: %lu\n"
252 "SMSG rx_bytes: %lu\n"
254 "RDMA tx_bytes: %lu\n"
256 "RDMA rx_bytes: %lu\n"
260 "RDMA REV length: %d\n"
261 "RDMA REV offset: %d\n"
262 "RDMA REV copy: %d\n",
263 now.tv_sec, now.tv_usec,
264 atomic_read(&kgnilnd_data.kgn_ntx),
265 atomic_read(&kgnilnd_data.kgn_npeers),
266 atomic_read(&kgnilnd_data.kgn_nconns),
267 atomic_read(&dev->gnd_neps),
268 atomic_read(&dev->gnd_ndgrams),
269 atomic_read(&dev->gnd_nfmablk),
270 atomic_read(&dev->gnd_n_mdd), atomic_read(&dev->gnd_n_mdd_held),
271 atomic_read(&kgnilnd_data.kgn_neager_allocs),
272 atomic64_read(&dev->gnd_nbytes_map),
273 atomic_read(&dev->gnd_nq_map),
274 dev->gnd_map_nphys, dev->gnd_map_physnop * PAGE_SIZE,
275 dev->gnd_map_nvirt, dev->gnd_map_virtnob,
276 atomic64_read(&dev->gnd_rdmaq_bytes_out),
277 atomic64_read(&dev->gnd_rdmaq_bytes_ok),
278 atomic_read(&dev->gnd_rdmaq_nstalls),
279 dev->gnd_mutex_delay,
280 atomic_read(&dev->gnd_n_yield), atomic_read(&dev->gnd_n_schedule),
281 atomic_read(&dev->gnd_fast_try), atomic_read(&dev->gnd_fast_ok),
282 atomic_read(&dev->gnd_fast_block),
283 atomic_read(&dev->gnd_short_ntx), atomic64_read(&dev->gnd_short_txbytes),
284 atomic_read(&dev->gnd_short_nrx), atomic64_read(&dev->gnd_short_rxbytes),
285 atomic_read(&dev->gnd_rdma_ntx), atomic64_read(&dev->gnd_rdma_txbytes),
286 atomic_read(&dev->gnd_rdma_nrx), atomic64_read(&dev->gnd_rdma_rxbytes),
287 atomic_read(&kgnilnd_data.kgn_nvmap_short),
288 atomic_read(&kgnilnd_data.kgn_nvmap_cksum),
289 atomic_read(&kgnilnd_data.kgn_nkmap_short),
290 atomic_read(&kgnilnd_data.kgn_rev_length),
291 atomic_read(&kgnilnd_data.kgn_rev_offset),
292 atomic_read(&kgnilnd_data.kgn_rev_copy_buff));
298 kgnilnd_proc_stats_write(struct file *file, const char __user *ubuffer,
299 size_t count, loff_t *ppos)
303 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
304 CERROR("kgnilnd is not initialized for stats write\n");
308 /* only do the first device */
309 dev = &kgnilnd_data.kgn_devices[0];
311 atomic_set(&dev->gnd_short_ntx, 0);
312 atomic_set(&dev->gnd_short_nrx, 0);
313 atomic64_set(&dev->gnd_short_txbytes, 0);
314 atomic64_set(&dev->gnd_short_rxbytes, 0);
315 atomic_set(&dev->gnd_rdma_ntx, 0);
316 atomic_set(&dev->gnd_rdma_nrx, 0);
317 atomic_set(&dev->gnd_fast_ok, 0);
318 atomic_set(&dev->gnd_fast_try, 0);
319 atomic_set(&dev->gnd_fast_block, 0);
320 atomic64_set(&dev->gnd_rdma_txbytes, 0);
321 atomic64_set(&dev->gnd_rdma_rxbytes, 0);
322 atomic_set(&dev->gnd_rdmaq_nstalls, 0);
323 set_mb(dev->gnd_mutex_delay, 0);
324 atomic_set(&dev->gnd_n_yield, 0);
325 atomic_set(&dev->gnd_n_schedule, 0);
326 atomic_set(&kgnilnd_data.kgn_nvmap_short, 0);
327 atomic_set(&kgnilnd_data.kgn_nvmap_cksum, 0);
328 atomic_set(&kgnilnd_data.kgn_nkmap_short, 0);
329 /* sampling is racy, but so is writing this file! */
335 kgnilnd_stats_seq_open(struct inode *inode, struct file *file)
337 return single_open(file, kgnilnd_stats_seq_show, PDE_DATA(inode));
340 static const struct file_operations kgn_stats_fops = {
341 .owner = THIS_MODULE,
342 .open = kgnilnd_stats_seq_open,
344 .write = kgnilnd_proc_stats_write,
346 .release = seq_release,
350 kgn_device_t *gmdd_dev;
353 } kgn_mdd_seq_iter_t;
356 kgnilnd_mdd_seq_seek(kgn_mdd_seq_iter_t *gseq, loff_t off)
364 gseq->gmdd_tx = NULL;
371 if (tx == NULL || gseq->gmdd_off > off) {
372 /* search from start */
373 r = gseq->gmdd_dev->gnd_map_list.next;
376 /* continue current search */
377 r = &tx->tx_map_list;
378 here = gseq->gmdd_off;
381 gseq->gmdd_off = off;
383 while (r != &gseq->gmdd_dev->gnd_map_list) {
386 t = list_entry(r, kgn_tx_t, tx_map_list);
397 gseq->gmdd_tx = NULL;
404 kgnilnd_mdd_seq_start(struct seq_file *s, loff_t *pos)
407 kgn_mdd_seq_iter_t *gseq;
410 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
414 LIBCFS_ALLOC(gseq, sizeof(*gseq));
416 CERROR("could not allocate mdd sequence iterator\n");
420 /* only doing device 0 for now */
421 gseq->gmdd_dev = &kgnilnd_data.kgn_devices[0];
422 gseq->gmdd_tx = NULL;
424 /* need to lock map while we poke - huge disturbance
425 * but without it, no way to get the data printed */
426 spin_lock(&gseq->gmdd_dev->gnd_map_lock);
428 /* set private to gseq for stop */
431 rc = kgnilnd_mdd_seq_seek(gseq, *pos);
439 kgnilnd_mdd_seq_stop(struct seq_file *s, void *iter)
441 kgn_mdd_seq_iter_t *gseq = s->private;
444 spin_unlock(&gseq->gmdd_dev->gnd_map_lock);
445 LIBCFS_FREE(gseq, sizeof(*gseq));
450 kgnilnd_mdd_seq_next(struct seq_file *s, void *iter, loff_t *pos)
452 kgn_mdd_seq_iter_t *gseq = iter;
454 loff_t next = *pos + 1;
456 rc = kgnilnd_mdd_seq_seek(gseq, next);
465 kgnilnd_mdd_seq_show(struct seq_file *s, void *iter)
467 kgn_mdd_seq_iter_t *gseq = iter;
473 gni_mem_handle_t hndl;
475 if (gseq->gmdd_off == 0) {
476 seq_printf(s, "%s %22s %16s %8s %8s %37s\n",
477 "tx", "tx_id", "nob", "physnop",
478 "buftype", "mem handle");
485 id = tx->tx_id.txe_smsg_id;
487 physnop = tx->tx_phys_npages;
488 buftype = tx->tx_buftype;
489 hndl.qword1 = tx->tx_map_key.qword1;
490 hndl.qword2 = tx->tx_map_key.qword2;
492 seq_printf(s, "%p %x %16llu %8d %#8x %#llx.%#llxx\n",
493 tx, id, nob, physnop, buftype,
494 hndl.qword1, hndl.qword2);
499 static struct seq_operations kgn_mdd_sops = {
500 .start = kgnilnd_mdd_seq_start,
501 .stop = kgnilnd_mdd_seq_stop,
502 .next = kgnilnd_mdd_seq_next,
503 .show = kgnilnd_mdd_seq_show,
508 kgnilnd_mdd_seq_open(struct inode *inode, struct file *file)
513 rc = seq_open(file, &kgn_mdd_sops);
515 sf = file->private_data;
517 /* NULL means we've not yet open() */
523 static struct file_operations kgn_mdd_fops = {
524 .owner = THIS_MODULE,
525 .open = kgnilnd_mdd_seq_open,
528 .release = seq_release,
533 kgn_device_t *gsmsg_dev;
534 kgn_fma_memblock_t *gsmsg_fmablk;
536 } kgn_smsg_seq_iter_t;
539 kgnilnd_smsg_seq_seek(kgn_smsg_seq_iter_t *gseq, loff_t off)
541 kgn_fma_memblock_t *fmablk;
547 /* offset 0 is the header, so we start real entries at
548 * here == off == 1 */
550 gseq->gsmsg_fmablk = NULL;
555 fmablk = gseq->gsmsg_fmablk;
556 dev = gseq->gsmsg_dev;
558 spin_lock(&dev->gnd_fmablk_lock);
560 if (fmablk != NULL &&
561 gseq->gsmsg_version != atomic_read(&dev->gnd_fmablk_vers)) {
567 if (fmablk == NULL || gseq->gsmsg_off > off) {
568 /* search from start */
569 r = dev->gnd_fma_buffs.next;
572 /* continue current search */
573 r = &fmablk->gnm_bufflist;
574 here = gseq->gsmsg_off;
577 gseq->gsmsg_version = atomic_read(&dev->gnd_fmablk_vers);
578 gseq->gsmsg_off = off;
580 while (r != &dev->gnd_fma_buffs) {
581 kgn_fma_memblock_t *t;
583 t = list_entry(r, kgn_fma_memblock_t, gnm_bufflist);
586 gseq->gsmsg_fmablk = t;
594 gseq->gsmsg_fmablk = NULL;
597 spin_unlock(&dev->gnd_fmablk_lock);
602 kgnilnd_smsg_seq_start(struct seq_file *s, loff_t *pos)
605 kgn_smsg_seq_iter_t *gseq;
608 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
612 LIBCFS_ALLOC(gseq, sizeof(*gseq));
614 CERROR("could not allocate smsg sequence iterator\n");
618 /* only doing device 0 for now */
619 gseq->gsmsg_dev = &kgnilnd_data.kgn_devices[0];
620 gseq->gsmsg_fmablk = NULL;
621 rc = kgnilnd_smsg_seq_seek(gseq, *pos);
625 LIBCFS_FREE(gseq, sizeof(*gseq));
630 kgnilnd_smsg_seq_stop(struct seq_file *s, void *iter)
632 kgn_smsg_seq_iter_t *gseq = iter;
635 LIBCFS_FREE(gseq, sizeof(*gseq));
639 kgnilnd_smsg_seq_next(struct seq_file *s, void *iter, loff_t *pos)
641 kgn_smsg_seq_iter_t *gseq = iter;
643 loff_t next = *pos + 1;
645 rc = kgnilnd_smsg_seq_seek(gseq, next);
647 LIBCFS_FREE(gseq, sizeof(*gseq));
655 kgnilnd_smsg_seq_show(struct seq_file *s, void *iter)
657 kgn_smsg_seq_iter_t *gseq = iter;
658 kgn_fma_memblock_t *fmablk;
660 int avail_mboxs, held_mboxs, num_mboxs;
661 unsigned int blk_size;
663 kgn_fmablk_state_t state;
664 gni_mem_handle_t hndl;
666 if (gseq->gsmsg_off == 0) {
667 seq_printf(s, "%5s %4s %6s/%5s/%5s %9s %18s %37s\n",
668 "blk#", "type", "avail", "held", "total", "size",
669 "fmablk", "mem handle");
673 fmablk = gseq->gsmsg_fmablk;
674 dev = gseq->gsmsg_dev;
675 LASSERT(fmablk != NULL);
677 spin_lock(&dev->gnd_fmablk_lock);
679 if (gseq->gsmsg_version != atomic_read(&dev->gnd_fmablk_vers)) {
681 spin_unlock(&dev->gnd_fmablk_lock);
685 live = fmablk->gnm_hold_timeout == 0;
686 /* none are available if it isn't live... */
687 avail_mboxs = live ? fmablk->gnm_avail_mboxs : 0;
688 held_mboxs = fmablk->gnm_held_mboxs;
689 num_mboxs = fmablk->gnm_num_mboxs;
690 blk_size = fmablk->gnm_blk_size;
691 state = fmablk->gnm_state;
692 hndl.qword1 = fmablk->gnm_hndl.qword1;
693 hndl.qword2 = fmablk->gnm_hndl.qword2;
695 spin_unlock(&dev->gnd_fmablk_lock);
698 seq_printf(s, "%5d %4s %6d/%5d/%5d %9d %18p %#llx.%#llx\n",
699 (int) gseq->gsmsg_off, kgnilnd_fmablk_state2str(state),
700 avail_mboxs, held_mboxs, num_mboxs, blk_size,
701 fmablk, hndl.qword1, hndl.qword2);
703 seq_printf(s, "%5d %4s %6d/%5d/%5d %9d %18p %37s\n",
704 (int) gseq->gsmsg_off, kgnilnd_fmablk_state2str(state),
705 avail_mboxs, held_mboxs, num_mboxs, blk_size,
706 fmablk, "PURGATORY.HOLD");
712 static struct seq_operations kgn_smsg_sops = {
713 .start = kgnilnd_smsg_seq_start,
714 .stop = kgnilnd_smsg_seq_stop,
715 .next = kgnilnd_smsg_seq_next,
716 .show = kgnilnd_smsg_seq_show,
721 kgnilnd_smsg_seq_open(struct inode *inode, struct file *file)
726 rc = seq_open(file, &kgn_smsg_sops);
728 sf = file->private_data;
729 sf->private = PDE_DATA(inode);
735 static struct file_operations kgn_smsg_fops = {
736 .owner = THIS_MODULE,
737 .open = kgnilnd_smsg_seq_open,
740 .release = seq_release,
745 struct list_head *gconn_list;
746 kgn_conn_t *gconn_conn;
749 } kgn_conn_seq_iter_t;
752 kgnilnd_conn_seq_seek(kgn_conn_seq_iter_t *gseq, loff_t off)
754 struct list_head *list, *tmp;
759 gseq->gconn_hashidx = 0;
760 gseq->gconn_list = NULL;
763 if (off > atomic_read(&kgnilnd_data.kgn_nconns)) {
764 gseq->gconn_list = NULL;
768 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
769 if (gseq->gconn_list != NULL &&
770 gseq->gconn_version != kgnilnd_data.kgn_conn_version) {
776 if ((gseq->gconn_list == NULL) ||
777 (gseq->gconn_off > off) ||
778 (gseq->gconn_hashidx >= *kgnilnd_tunables.kgn_peer_hash_size)) {
779 /* search from start */
780 gseq->gconn_hashidx = 0;
781 list = &kgnilnd_data.kgn_conns[gseq->gconn_hashidx];
784 /* continue current search */
785 list = gseq->gconn_list;
788 gseq->gconn_version = kgnilnd_data.kgn_conn_version;
789 gseq->gconn_off = off;
793 list_for_each(tmp, list) {
796 conn = list_entry(tmp, kgn_conn_t, gnc_hashlist);
797 gseq->gconn_conn = conn;
803 /* if we got through this hash bucket with 'off' still to go, try next*/
804 gseq->gconn_hashidx++;
806 (gseq->gconn_hashidx < *kgnilnd_tunables.kgn_peer_hash_size)) {
807 list = &kgnilnd_data.kgn_conns[gseq->gconn_hashidx];
811 gseq->gconn_list = NULL;
814 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
819 kgnilnd_conn_seq_start(struct seq_file *s, loff_t *pos)
822 kgn_conn_seq_iter_t *gseq;
825 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
829 LIBCFS_ALLOC(gseq, sizeof(*gseq));
831 CERROR("could not allocate conn sequence iterator\n");
835 /* only doing device 0 for now */
836 gseq->gconn_list = NULL;
837 rc = kgnilnd_conn_seq_seek(gseq, *pos);
841 LIBCFS_FREE(gseq, sizeof(*gseq));
846 kgnilnd_conn_seq_stop(struct seq_file *s, void *iter)
848 kgn_conn_seq_iter_t *gseq = iter;
851 LIBCFS_FREE(gseq, sizeof(*gseq));
855 kgnilnd_conn_seq_next(struct seq_file *s, void *iter, loff_t *pos)
857 kgn_conn_seq_iter_t *gseq = iter;
859 loff_t next = *pos + 1;
861 rc = kgnilnd_conn_seq_seek(gseq, next);
863 LIBCFS_FREE(gseq, sizeof(*gseq));
871 kgnilnd_conn_seq_show(struct seq_file *s, void *iter)
873 kgn_conn_seq_iter_t *gseq = iter;
874 kgn_peer_t *peer = NULL;
877 /* there is no header data for conns, so offset 0 is the first
880 conn = gseq->gconn_conn;
881 LASSERT(conn != NULL);
883 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
884 if (gseq->gconn_list != NULL &&
885 gseq->gconn_version != kgnilnd_data.kgn_conn_version) {
887 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
891 /* instead of saving off the data, just refcount */
892 kgnilnd_conn_addref(conn);
893 if (conn->gnc_peer) {
894 /* don't use link - after unlock it could get nuked */
895 peer = conn->gnc_peer;
896 kgnilnd_peer_addref(peer);
899 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
901 seq_printf(s, "%p->%s [%d] q %d/%d/%d "
902 "tx sq %u %dms/%dms "
903 "rx sq %u %dms/%dms "
904 "noop r/s %d/%d w/s/cq %lds/%lds/%lds "
905 "sched a/d %lds/%lds "
906 "tx_re %lld TO %ds %s\n",
907 conn, peer ? libcfs_nid2str(peer->gnp_nid) : "<?>",
908 atomic_read(&conn->gnc_refcount),
909 kgnilnd_count_list(&conn->gnc_fmaq),
910 atomic_read(&conn->gnc_nlive_fma),
911 atomic_read(&conn->gnc_nlive_rdma),
912 atomic_read(&conn->gnc_tx_seq),
913 jiffies_to_msecs(jiffies - conn->gnc_last_tx),
914 jiffies_to_msecs(jiffies - conn->gnc_last_tx_cq),
915 atomic_read(&conn->gnc_rx_seq),
916 jiffies_to_msecs(jiffies - conn->gnc_last_rx),
917 jiffies_to_msecs(jiffies - conn->gnc_last_rx_cq),
918 atomic_read(&conn->gnc_reaper_noop),
919 atomic_read(&conn->gnc_sched_noop),
920 cfs_duration_sec(jiffies - conn->gnc_last_noop_want),
921 cfs_duration_sec(jiffies - conn->gnc_last_noop_sent),
922 cfs_duration_sec(jiffies - conn->gnc_last_noop_cq),
923 cfs_duration_sec(jiffies - conn->gnc_last_sched_ask),
924 cfs_duration_sec(jiffies - conn->gnc_last_sched_do),
925 conn->gnc_tx_retrans, conn->gnc_timeout,
926 kgnilnd_conn_state2str(conn));
929 kgnilnd_peer_decref(peer);
930 kgnilnd_conn_decref(conn);
935 static struct seq_operations kgn_conn_sops = {
936 .start = kgnilnd_conn_seq_start,
937 .stop = kgnilnd_conn_seq_stop,
938 .next = kgnilnd_conn_seq_next,
939 .show = kgnilnd_conn_seq_show,
943 #define KGN_DEBUG_PEER_NID_DEFAULT -1
944 static int kgnilnd_debug_peer_nid = KGN_DEBUG_PEER_NID_DEFAULT;
947 kgnilnd_proc_peer_conns_write(struct file *file, const char __user *ubuffer,
948 size_t count, loff_t *ppos)
953 if (count >= sizeof(dummy) || count == 0)
956 if (copy_from_user(dummy, ubuffer, count))
959 rc = sscanf(dummy, "%d", &kgnilnd_debug_peer_nid);
968 /* debug data to print from conns associated with peer nid
971 - mbox_addr (msg_buffer + mbox_offset)
990 kgnilnd_proc_peer_conns_seq_show(struct seq_file *sf, void *v)
999 if (kgnilnd_debug_peer_nid == KGN_DEBUG_PEER_NID_DEFAULT) {
1000 rc = seq_printf(sf, "peer_conns not initialized\n");
1004 /* sample date/time stamp - print time in UTC
1005 * 2012-12-11T16:06:16.966751 123@gni ...
1007 getnstimeofday(&now);
1008 time_to_tm(now.tv_sec, 0, &ctm);
1011 write_lock(&kgnilnd_data.kgn_peer_conn_lock);
1012 peer = kgnilnd_find_peer_locked(kgnilnd_debug_peer_nid);
1015 rc = seq_printf(sf, "peer not found for this nid %d\n",
1016 kgnilnd_debug_peer_nid);
1017 write_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1021 list_for_each_entry(conn, &peer->gnp_conns, gnc_list) {
1023 "%04ld-%02d-%02dT%02d:%02d:%02d.%06ld %s "
1029 "err %d peer err %d "
1030 "tx sq %u %dms/%dms "
1031 "rx sq %u %dms/%dms/%dms "
1033 ctm.tm_year+1900, ctm.tm_mon+1, ctm.tm_mday,
1034 ctm.tm_hour, ctm.tm_min, ctm.tm_sec, now.tv_nsec,
1035 libcfs_nid2str(peer->gnp_nid),
1036 conn->remote_mbox_addr,
1037 kgnilnd_conn_dgram_type2str(conn->gnc_dgram_type),
1038 kgnilnd_conn_state2str(conn),
1039 conn->gnc_in_purgatory,
1040 conn->gnc_close_sent,
1041 conn->gnc_close_recvd,
1043 conn->gnc_peer_error,
1044 atomic_read(&conn->gnc_tx_seq),
1045 jiffies_to_msecs(jifs - conn->gnc_last_tx),
1046 jiffies_to_msecs(jifs - conn->gnc_last_tx_cq),
1047 atomic_read(&conn->gnc_rx_seq),
1048 jiffies_to_msecs(jifs - conn->gnc_first_rx),
1049 jiffies_to_msecs(jifs - conn->gnc_last_rx),
1050 jiffies_to_msecs(jifs - conn->gnc_last_rx_cq),
1051 conn->gnc_tx_retrans);
1054 write_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1059 kgnilnd_peer_conns_seq_open(struct inode *inode, struct file *file)
1061 return single_open(file, kgnilnd_proc_peer_conns_seq_show,
1065 static const struct file_operations kgn_peer_conns_fops = {
1066 .owner = THIS_MODULE,
1067 .open = kgnilnd_peer_conns_seq_open,
1069 .write = kgnilnd_proc_peer_conns_write,
1070 .llseek = seq_lseek,
1071 .release = seq_release,
1075 kgnilnd_conn_seq_open(struct inode *inode, struct file *file)
1077 struct seq_file *sf;
1080 rc = seq_open(file, &kgn_conn_sops);
1082 sf = file->private_data;
1083 sf->private = PDE_DATA(inode);
1089 static struct file_operations kgn_conn_fops = {
1090 .owner = THIS_MODULE,
1091 .open = kgnilnd_conn_seq_open,
1093 .llseek = seq_lseek,
1094 .release = seq_release,
1098 __u64 gpeer_version;
1099 struct list_head *gpeer_list;
1100 kgn_peer_t *gpeer_peer;
1103 } kgn_peer_seq_iter_t;
1106 kgnilnd_peer_seq_seek(kgn_peer_seq_iter_t *gseq, loff_t off)
1108 struct list_head *list, *tmp;
1113 gseq->gpeer_hashidx = 0;
1114 gseq->gpeer_list = NULL;
1117 if (off > atomic_read(&kgnilnd_data.kgn_npeers)) {
1118 gseq->gpeer_list = NULL;
1122 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
1123 if (gseq->gpeer_list != NULL &&
1124 gseq->gpeer_version != kgnilnd_data.kgn_peer_version) {
1130 if ((gseq->gpeer_list == NULL) ||
1131 (gseq->gpeer_off > off) ||
1132 (gseq->gpeer_hashidx >= *kgnilnd_tunables.kgn_peer_hash_size)) {
1133 /* search from start */
1134 gseq->gpeer_hashidx = 0;
1135 list = &kgnilnd_data.kgn_peers[gseq->gpeer_hashidx];
1138 /* continue current search */
1139 list = gseq->gpeer_list;
1142 gseq->gpeer_version = kgnilnd_data.kgn_peer_version;
1143 gseq->gpeer_off = off;
1147 list_for_each(tmp, list) {
1150 peer = list_entry(tmp, kgn_peer_t, gnp_list);
1151 gseq->gpeer_peer = peer;
1157 /* if we got through this hash bucket with 'off' still to go, try next*/
1158 gseq->gpeer_hashidx++;
1159 if ((here <= off) &&
1160 (gseq->gpeer_hashidx < *kgnilnd_tunables.kgn_peer_hash_size)) {
1161 list = &kgnilnd_data.kgn_peers[gseq->gpeer_hashidx];
1165 gseq->gpeer_list = NULL;
1168 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1173 kgnilnd_peer_seq_start(struct seq_file *s, loff_t *pos)
1176 kgn_peer_seq_iter_t *gseq;
1179 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
1183 LIBCFS_ALLOC(gseq, sizeof(*gseq));
1185 CERROR("could not allocate peer sequence iterator\n");
1189 /* only doing device 0 for now */
1190 gseq->gpeer_list = NULL;
1191 rc = kgnilnd_peer_seq_seek(gseq, *pos);
1195 LIBCFS_FREE(gseq, sizeof(*gseq));
1200 kgnilnd_peer_seq_stop(struct seq_file *s, void *iter)
1202 kgn_peer_seq_iter_t *gseq = iter;
1205 LIBCFS_FREE(gseq, sizeof(*gseq));
1209 kgnilnd_peer_seq_next(struct seq_file *s, void *iter, loff_t *pos)
1211 kgn_peer_seq_iter_t *gseq = iter;
1213 loff_t next = *pos + 1;
1215 rc = kgnilnd_peer_seq_seek(gseq, next);
1217 LIBCFS_FREE(gseq, sizeof(*gseq));
1225 kgnilnd_peer_seq_show(struct seq_file *s, void *iter)
1227 kgn_peer_seq_iter_t *gseq = iter;
1232 /* there is no header data for peers, so offset 0 is the first
1235 peer = gseq->gpeer_peer;
1236 LASSERT(peer != NULL);
1238 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
1239 if (gseq->gpeer_list != NULL &&
1240 gseq->gpeer_version != kgnilnd_data.kgn_peer_version) {
1242 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1246 /* instead of saving off the data, just refcount */
1247 kgnilnd_peer_addref(peer);
1248 conn = kgnilnd_find_conn_locked(peer);
1250 if (peer->gnp_connecting) {
1252 } else if (conn != NULL) {
1258 list_for_each_entry(conn, &peer->gnp_conns, gnc_list) {
1259 if (conn->gnc_in_purgatory) {
1264 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1266 seq_printf(s, "%p->%s [%d] %s NIC 0x%x q %d conn %c purg %d last %d@%dms dgram %d@%dms reconn %dms to %lus \n",
1267 peer, libcfs_nid2str(peer->gnp_nid),
1268 atomic_read(&peer->gnp_refcount),
1269 (peer->gnp_state == GNILND_PEER_DOWN) ? "down" :
1270 peer->gnp_state == GNILND_PEER_TIMED_OUT ? "timedout" : "up",
1272 kgnilnd_count_list(&peer->gnp_tx_queue),
1275 peer->gnp_last_errno,
1276 jiffies_to_msecs(jiffies - peer->gnp_last_alive),
1277 peer->gnp_last_dgram_errno,
1278 jiffies_to_msecs(jiffies - peer->gnp_last_dgram_time),
1279 peer->gnp_reconnect_interval != 0
1280 ? jiffies_to_msecs(jiffies - peer->gnp_reconnect_time)
1282 peer->gnp_reconnect_interval);
1284 kgnilnd_peer_decref(peer);
1289 static struct seq_operations kgn_peer_sops = {
1290 .start = kgnilnd_peer_seq_start,
1291 .stop = kgnilnd_peer_seq_stop,
1292 .next = kgnilnd_peer_seq_next,
1293 .show = kgnilnd_peer_seq_show,
1297 kgnilnd_peer_seq_open(struct inode *inode, struct file *file)
1299 struct seq_file *sf;
1302 rc = seq_open(file, &kgn_peer_sops);
1304 sf = file->private_data;
1305 sf->private = PDE_DATA(inode);
1311 static struct file_operations kgn_peer_fops = {
1312 .owner = THIS_MODULE,
1313 .open = kgnilnd_peer_seq_open,
1315 .llseek = seq_lseek,
1316 .release = seq_release,
1319 static struct proc_dir_entry *kgn_proc_root;
1322 kgnilnd_proc_init(void)
1324 struct proc_dir_entry *pde;
1329 kgn_proc_root = proc_mkdir(libcfs_lnd2modname(GNILND), NULL);
1330 if (kgn_proc_root == NULL) {
1331 CERROR("couldn't create proc dir %s\n",
1332 libcfs_lnd2modname(GNILND));
1336 /* Initialize CKSUM_TEST */
1337 pde = proc_create(GNILND_PROC_CKSUM_TEST, 0200, kgn_proc_root,
1338 &kgn_cksum_test_fops);
1340 CERROR("couldn't create proc entry %s\n", GNILND_PROC_CKSUM_TEST);
1341 GOTO(remove_dir, rc = -ENOENT);
1344 /* Initialize STATS */
1345 pde = proc_create(GNILND_PROC_STATS, 0644, kgn_proc_root,
1348 CERROR("couldn't create proc entry %s\n", GNILND_PROC_STATS);
1349 GOTO(remove_test, rc = -ENOENT);
1352 /* Initialize MDD */
1353 pde = proc_create(GNILND_PROC_MDD, 0444, kgn_proc_root, &kgn_mdd_fops);
1355 CERROR("couldn't create proc entry %s\n", GNILND_PROC_MDD);
1356 GOTO(remove_stats, rc = -ENOENT);
1359 /* Initialize SMSG */
1360 pde = proc_create(GNILND_PROC_SMSG, 0444, kgn_proc_root,
1363 CERROR("couldn't create proc entry %s\n", GNILND_PROC_SMSG);
1364 GOTO(remove_mdd, rc = -ENOENT);
1367 /* Initialize CONN */
1368 pde = proc_create(GNILND_PROC_CONN, 0444, kgn_proc_root,
1371 CERROR("couldn't create proc entry %s\n", GNILND_PROC_CONN);
1372 GOTO(remove_smsg, rc = -ENOENT);
1375 /* Initialize peer conns debug */
1376 pde = proc_create(GNILND_PROC_PEER_CONNS, 0644, kgn_proc_root,
1377 &kgn_peer_conns_fops);
1379 CERROR("couldn't create proc entry %s\n", GNILND_PROC_PEER_CONNS);
1380 GOTO(remove_conn, rc = -ENOENT);
1383 /* Initialize PEER */
1384 pde = proc_create(GNILND_PROC_PEER, 0444, kgn_proc_root,
1387 CERROR("couldn't create proc entry %s\n", GNILND_PROC_PEER);
1388 GOTO(remove_pc, rc = -ENOENT);
1393 remove_proc_entry(GNILND_PROC_PEER_CONNS, kgn_proc_root);
1395 remove_proc_entry(GNILND_PROC_CONN, kgn_proc_root);
1397 remove_proc_entry(GNILND_PROC_SMSG, kgn_proc_root);
1399 remove_proc_entry(GNILND_PROC_MDD, kgn_proc_root);
1401 remove_proc_entry(GNILND_PROC_STATS, kgn_proc_root);
1403 remove_proc_entry(GNILND_PROC_CKSUM_TEST, kgn_proc_root);
1405 remove_proc_entry(libcfs_lnd2modname(GNILND), NULL);
1411 kgnilnd_proc_fini(void)
1413 remove_proc_entry(GNILND_PROC_PEER_CONNS, kgn_proc_root);
1414 remove_proc_entry(GNILND_PROC_PEER, kgn_proc_root);
1415 remove_proc_entry(GNILND_PROC_CONN, kgn_proc_root);
1416 remove_proc_entry(GNILND_PROC_MDD, kgn_proc_root);
1417 remove_proc_entry(GNILND_PROC_SMSG, kgn_proc_root);
1418 remove_proc_entry(GNILND_PROC_STATS, kgn_proc_root);
1419 remove_proc_entry(GNILND_PROC_CKSUM_TEST, kgn_proc_root);
1420 remove_proc_entry(libcfs_lnd2modname(GNILND), NULL);