2 * Copyright (C) 2009-2012 Cray, Inc.
4 * Copyright (c) 2013, Intel Corporation.
6 * Author: Nic Henke <nic@cray.com>
8 * This file is part of Lustre, http://www.lustre.org.
10 * Lustre is free software; you can redistribute it and/or
11 * modify it under the terms of version 2 of the GNU General Public
12 * License as published by the Free Software Foundation.
14 * Lustre is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with Lustre; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 /* this code liberated and modified from lnet/lnet/router_proc.c */
26 #define DEBUG_SUBSYSTEM S_LND
28 #include <linux/seq_file.h>
29 #include <lprocfs_status.h>
31 #define GNILND_PROC_STATS "stats"
32 #define GNILND_PROC_MDD "mdd"
33 #define GNILND_PROC_SMSG "smsg"
34 #define GNILND_PROC_CONN "conn"
35 #define GNILND_PROC_PEER_CONNS "peer_conns"
36 #define GNILND_PROC_PEER "peer"
37 #define GNILND_PROC_CKSUM_TEST "cksum_test"
40 _kgnilnd_proc_run_cksum_test(int caseno, int nloops, int nob)
42 lnet_kiov_t *src, *dest;
43 struct timespec begin, end, diff;
50 LIBCFS_ALLOC(src, LNET_MAX_IOV * sizeof(lnet_kiov_t));
51 LIBCFS_ALLOC(dest, LNET_MAX_IOV * sizeof(lnet_kiov_t));
53 if (src == NULL || dest == NULL) {
54 CERROR("couldn't allocate iovs\n");
55 GOTO(unwind, rc = -ENOMEM);
58 for (i = 0; i < LNET_MAX_IOV; i++) {
59 src[i].kiov_offset = 0;
60 src[i].kiov_len = PAGE_SIZE;
61 src[i].kiov_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
63 if (src[i].kiov_page == NULL) {
64 CERROR("couldn't allocate page %d\n", i);
65 GOTO(unwind, rc = -ENOMEM);
68 dest[i].kiov_offset = 0;
69 dest[i].kiov_len = PAGE_SIZE;
70 dest[i].kiov_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
72 if (dest[i].kiov_page == NULL) {
73 CERROR("couldn't allocate page %d\n", i);
74 GOTO(unwind, rc = -ENOMEM);
78 /* add extra 2 pages - one for offset of src, 2nd to allow dest offset */
79 niov = (nob / PAGE_SIZE) + 2;
80 if (niov > LNET_MAX_IOV) {
81 CERROR("bytes %d too large, requires niov %d > %d\n",
82 nob, niov, LNET_MAX_IOV);
83 GOTO(unwind, rc = -E2BIG);
87 src[0].kiov_offset = 317;
88 dest[0].kiov_offset = 592;
95 dest[0].kiov_offset -= 1;
99 src[0].kiov_offset += 1;
103 src[0].kiov_offset += 1;
104 dest[0].kiov_offset -= 1;
106 src[0].kiov_len = PAGE_SIZE - src[0].kiov_offset;
107 dest[0].kiov_len = PAGE_SIZE - dest[0].kiov_offset;
109 for (i = 0; i < niov; i++) {
110 memset(page_address(src[i].kiov_page) + src[i].kiov_offset,
111 0xf0 + i, src[i].kiov_len);
114 lnet_copy_kiov2kiov(niov, dest, 0, niov, src, 0, nob);
116 getnstimeofday(&begin);
118 for (n = 0; n < nloops; n++) {
119 CDEBUG(D_BUFFS, "case %d loop %d src %d dest %d nob %d niov %d\n",
120 caseno, n, src[0].kiov_offset, dest[0].kiov_offset, nob, niov);
121 cksum = kgnilnd_cksum_kiov(niov, src, 0, nob - (n % nob), 1);
122 cksum2 = kgnilnd_cksum_kiov(niov, dest, 0, nob - (n % nob), 1);
124 if (cksum != cksum2) {
125 CERROR("case %d loop %d different checksums %x expected %x\n",
126 j, n, cksum2, cksum);
127 GOTO(unwind, rc = -ENOKEY);
131 getnstimeofday(&end);
133 mbytes = ((__u64)nloops * nob * 2) / (1024*1024);
135 diff = kgnilnd_ts_sub(end, begin);
137 LCONSOLE_INFO("running "LPD64"MB took %ld.%ld seconds\n",
138 mbytes, diff.tv_sec, diff.tv_nsec);
141 CDEBUG(D_NET, "freeing %d pages\n", i);
142 for (i -= 1; i >= 0; i--) {
143 if (src[i].kiov_page != NULL) {
144 __free_page(src[i].kiov_page);
146 if (dest[i].kiov_page != NULL) {
147 __free_page(dest[i].kiov_page);
152 LIBCFS_FREE(src, LNET_MAX_IOV * sizeof(lnet_kiov_t));
154 LIBCFS_FREE(dest, LNET_MAX_IOV * sizeof(lnet_kiov_t));
159 kgnilnd_proc_cksum_test_write(struct file *file, const char *ubuffer,
160 unsigned long count, void *data)
162 char dummy[256 + 1] = { '\0' };
163 int testno, nloops, nbytes;
167 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
168 CERROR("can't run cksum test, kgnilnd is not initialized yet\n");
172 if (count >= sizeof(dummy) || count == 0)
175 if (copy_from_user(dummy, ubuffer, count))
178 if (sscanf(dummy, "%d:%d:%d", &testno, &nloops, &nbytes) == 3) {
179 rc = _kgnilnd_proc_run_cksum_test(testno, nloops, nbytes);
183 /* spurious, but lets us know the parse was ok */
191 kgnilnd_proc_stats_read(char *page, char **start, off_t off,
192 int count, int *eof, void *data)
198 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
200 "kgnilnd is not initialized yet\n");
204 /* only do the first device */
205 dev = &kgnilnd_data.kgn_devices[0];
207 /* sampling is racy, but so is reading this file! */
209 do_gettimeofday(&now);
211 rc = sprintf(page, "time: %lu.%lu\n"
220 "n_eager_allocs: %d\n"
221 "GART map bytes: %ld\n"
222 "TX queued maps: %d\n"
223 "TX phys nmaps: %d\n"
224 "TX phys bytes: %lu\n"
225 "TX virt nmaps: %d\n"
226 "TX virt bytes: "LPU64"\n"
227 "RDMAQ bytes_auth: %ld\n"
228 "RDMAQ bytes_left: %ld\n"
229 "RDMAQ nstalls: %d\n"
230 "dev mutex delay: %ld\n"
232 "dev n_schedule: %d\n"
233 "SMSG fast_try: %d\n"
235 "SMSG fast_block: %d\n"
237 "SMSG tx_bytes: %ld\n"
239 "SMSG rx_bytes: %ld\n"
241 "RDMA tx_bytes: %ld\n"
243 "RDMA rx_bytes: %ld\n"
247 "RDMA REV length: %d\n"
248 "RDMA REV offset: %d\n"
249 "RDMA REV copy: %d\n",
250 now.tv_sec, now.tv_usec,
251 atomic_read(&kgnilnd_data.kgn_ntx),
252 atomic_read(&kgnilnd_data.kgn_npeers),
253 atomic_read(&kgnilnd_data.kgn_nconns),
254 atomic_read(&dev->gnd_neps),
255 atomic_read(&dev->gnd_ndgrams),
256 atomic_read(&dev->gnd_nfmablk),
257 atomic_read(&dev->gnd_n_mdd), atomic_read(&dev->gnd_n_mdd_held),
258 atomic_read(&kgnilnd_data.kgn_neager_allocs),
259 atomic64_read(&dev->gnd_nbytes_map),
260 atomic_read(&dev->gnd_nq_map),
261 dev->gnd_map_nphys, dev->gnd_map_physnop * PAGE_SIZE,
262 dev->gnd_map_nvirt, dev->gnd_map_virtnob,
263 atomic64_read(&dev->gnd_rdmaq_bytes_out),
264 atomic64_read(&dev->gnd_rdmaq_bytes_ok),
265 atomic_read(&dev->gnd_rdmaq_nstalls),
266 dev->gnd_mutex_delay,
267 atomic_read(&dev->gnd_n_yield), atomic_read(&dev->gnd_n_schedule),
268 atomic_read(&dev->gnd_fast_try), atomic_read(&dev->gnd_fast_ok),
269 atomic_read(&dev->gnd_fast_block),
270 atomic_read(&dev->gnd_short_ntx), atomic64_read(&dev->gnd_short_txbytes),
271 atomic_read(&dev->gnd_short_nrx), atomic64_read(&dev->gnd_short_rxbytes),
272 atomic_read(&dev->gnd_rdma_ntx), atomic64_read(&dev->gnd_rdma_txbytes),
273 atomic_read(&dev->gnd_rdma_nrx), atomic64_read(&dev->gnd_rdma_rxbytes),
274 atomic_read(&kgnilnd_data.kgn_nvmap_short),
275 atomic_read(&kgnilnd_data.kgn_nvmap_cksum),
276 atomic_read(&kgnilnd_data.kgn_nkmap_short),
277 atomic_read(&kgnilnd_data.kgn_rev_length),
278 atomic_read(&kgnilnd_data.kgn_rev_offset),
279 atomic_read(&kgnilnd_data.kgn_rev_copy_buff));
285 kgnilnd_proc_stats_write(struct file *file, const char *ubuffer,
286 unsigned long count, void *data)
290 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
291 CERROR("kgnilnd is not initialized for stats write\n");
295 /* only do the first device */
296 dev = &kgnilnd_data.kgn_devices[0];
298 atomic_set(&dev->gnd_short_ntx, 0);
299 atomic_set(&dev->gnd_short_nrx, 0);
300 atomic64_set(&dev->gnd_short_txbytes, 0);
301 atomic64_set(&dev->gnd_short_rxbytes, 0);
302 atomic_set(&dev->gnd_rdma_ntx, 0);
303 atomic_set(&dev->gnd_rdma_nrx, 0);
304 atomic_set(&dev->gnd_fast_ok, 0);
305 atomic_set(&dev->gnd_fast_try, 0);
306 atomic_set(&dev->gnd_fast_block, 0);
307 atomic64_set(&dev->gnd_rdma_txbytes, 0);
308 atomic64_set(&dev->gnd_rdma_rxbytes, 0);
309 atomic_set(&dev->gnd_rdmaq_nstalls, 0);
310 set_mb(dev->gnd_mutex_delay, 0);
311 atomic_set(&dev->gnd_n_yield, 0);
312 atomic_set(&dev->gnd_n_schedule, 0);
313 atomic_set(&kgnilnd_data.kgn_nvmap_short, 0);
314 atomic_set(&kgnilnd_data.kgn_nvmap_cksum, 0);
315 atomic_set(&kgnilnd_data.kgn_nkmap_short, 0);
316 /* sampling is racy, but so is writing this file! */
322 kgn_device_t *gmdd_dev;
325 } kgn_mdd_seq_iter_t;
328 kgnilnd_mdd_seq_seek(kgn_mdd_seq_iter_t *gseq, loff_t off)
336 gseq->gmdd_tx = NULL;
343 if (tx == NULL || gseq->gmdd_off > off) {
344 /* search from start */
345 r = gseq->gmdd_dev->gnd_map_list.next;
348 /* continue current search */
349 r = &tx->tx_map_list;
350 here = gseq->gmdd_off;
353 gseq->gmdd_off = off;
355 while (r != &gseq->gmdd_dev->gnd_map_list) {
358 t = list_entry(r, kgn_tx_t, tx_map_list);
369 gseq->gmdd_tx = NULL;
376 kgnilnd_mdd_seq_start(struct seq_file *s, loff_t *pos)
379 kgn_mdd_seq_iter_t *gseq;
382 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
386 LIBCFS_ALLOC(gseq, sizeof(*gseq));
388 CERROR("could not allocate mdd sequence iterator\n");
392 /* only doing device 0 for now */
393 gseq->gmdd_dev = &kgnilnd_data.kgn_devices[0];
394 gseq->gmdd_tx = NULL;
396 /* need to lock map while we poke - huge disturbance
397 * but without it, no way to get the data printed */
398 spin_lock(&gseq->gmdd_dev->gnd_map_lock);
400 /* set private to gseq for stop */
403 rc = kgnilnd_mdd_seq_seek(gseq, *pos);
411 kgnilnd_mdd_seq_stop(struct seq_file *s, void *iter)
413 kgn_mdd_seq_iter_t *gseq = s->private;
416 spin_unlock(&gseq->gmdd_dev->gnd_map_lock);
417 LIBCFS_FREE(gseq, sizeof(*gseq));
422 kgnilnd_mdd_seq_next(struct seq_file *s, void *iter, loff_t *pos)
424 kgn_mdd_seq_iter_t *gseq = iter;
426 loff_t next = *pos + 1;
428 rc = kgnilnd_mdd_seq_seek(gseq, next);
437 kgnilnd_mdd_seq_show(struct seq_file *s, void *iter)
439 kgn_mdd_seq_iter_t *gseq = iter;
445 gni_mem_handle_t hndl;
447 if (gseq->gmdd_off == 0) {
448 seq_printf(s, "%s %22s %16s %8s %8s %37s\n",
449 "tx", "tx_id", "nob", "physnop",
450 "buftype", "mem handle");
457 id = tx->tx_id.txe_smsg_id;
459 physnop = tx->tx_phys_npages;
460 buftype = tx->tx_buftype;
461 hndl.qword1 = tx->tx_map_key.qword1;
462 hndl.qword2 = tx->tx_map_key.qword2;
464 seq_printf(s, "%p %x %16"LPF64"u %8d %#8x "LPX64"."LPX64"x\n",
465 tx, id, nob, physnop, buftype,
466 hndl.qword1, hndl.qword2);
471 static struct seq_operations kgn_mdd_sops = {
472 .start = kgnilnd_mdd_seq_start,
473 .stop = kgnilnd_mdd_seq_stop,
474 .next = kgnilnd_mdd_seq_next,
475 .show = kgnilnd_mdd_seq_show,
480 kgnilnd_mdd_seq_open(struct inode *inode, struct file *file)
485 rc = seq_open(file, &kgn_mdd_sops);
487 sf = file->private_data;
489 /* NULL means we've not yet open() */
495 static struct file_operations kgn_mdd_fops = {
496 .owner = THIS_MODULE,
497 .open = kgnilnd_mdd_seq_open,
500 .release = seq_release,
505 kgn_device_t *gsmsg_dev;
506 kgn_fma_memblock_t *gsmsg_fmablk;
508 } kgn_smsg_seq_iter_t;
511 kgnilnd_smsg_seq_seek(kgn_smsg_seq_iter_t *gseq, loff_t off)
513 kgn_fma_memblock_t *fmablk;
519 /* offset 0 is the header, so we start real entries at
520 * here == off == 1 */
522 gseq->gsmsg_fmablk = NULL;
527 fmablk = gseq->gsmsg_fmablk;
528 dev = gseq->gsmsg_dev;
530 spin_lock(&dev->gnd_fmablk_lock);
532 if (fmablk != NULL &&
533 gseq->gsmsg_version != atomic_read(&dev->gnd_fmablk_vers)) {
539 if (fmablk == NULL || gseq->gsmsg_off > off) {
540 /* search from start */
541 r = dev->gnd_fma_buffs.next;
544 /* continue current search */
545 r = &fmablk->gnm_bufflist;
546 here = gseq->gsmsg_off;
549 gseq->gsmsg_version = atomic_read(&dev->gnd_fmablk_vers);
550 gseq->gsmsg_off = off;
552 while (r != &dev->gnd_fma_buffs) {
553 kgn_fma_memblock_t *t;
555 t = list_entry(r, kgn_fma_memblock_t, gnm_bufflist);
558 gseq->gsmsg_fmablk = t;
566 gseq->gsmsg_fmablk = NULL;
569 spin_unlock(&dev->gnd_fmablk_lock);
574 kgnilnd_smsg_seq_start(struct seq_file *s, loff_t *pos)
577 kgn_smsg_seq_iter_t *gseq;
580 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
584 LIBCFS_ALLOC(gseq, sizeof(*gseq));
586 CERROR("could not allocate smsg sequence iterator\n");
590 /* only doing device 0 for now */
591 gseq->gsmsg_dev = &kgnilnd_data.kgn_devices[0];
592 gseq->gsmsg_fmablk = NULL;
593 rc = kgnilnd_smsg_seq_seek(gseq, *pos);
597 LIBCFS_FREE(gseq, sizeof(*gseq));
602 kgnilnd_smsg_seq_stop(struct seq_file *s, void *iter)
604 kgn_smsg_seq_iter_t *gseq = iter;
607 LIBCFS_FREE(gseq, sizeof(*gseq));
611 kgnilnd_smsg_seq_next(struct seq_file *s, void *iter, loff_t *pos)
613 kgn_smsg_seq_iter_t *gseq = iter;
615 loff_t next = *pos + 1;
617 rc = kgnilnd_smsg_seq_seek(gseq, next);
619 LIBCFS_FREE(gseq, sizeof(*gseq));
627 kgnilnd_smsg_seq_show(struct seq_file *s, void *iter)
629 kgn_smsg_seq_iter_t *gseq = iter;
630 kgn_fma_memblock_t *fmablk;
632 int avail_mboxs, held_mboxs, num_mboxs;
633 unsigned int blk_size;
635 kgn_fmablk_state_t state;
636 gni_mem_handle_t hndl;
638 if (gseq->gsmsg_off == 0) {
639 seq_printf(s, "%5s %4s %6s/%5s/%5s %9s %18s %37s\n",
640 "blk#", "type", "avail", "held", "total", "size",
641 "fmablk", "mem handle");
645 fmablk = gseq->gsmsg_fmablk;
646 dev = gseq->gsmsg_dev;
647 LASSERT(fmablk != NULL);
649 spin_lock(&dev->gnd_fmablk_lock);
651 if (gseq->gsmsg_version != atomic_read(&dev->gnd_fmablk_vers)) {
653 spin_unlock(&dev->gnd_fmablk_lock);
657 live = fmablk->gnm_hold_timeout == 0;
658 /* none are available if it isn't live... */
659 avail_mboxs = live ? fmablk->gnm_avail_mboxs : 0;
660 held_mboxs = fmablk->gnm_held_mboxs;
661 num_mboxs = fmablk->gnm_num_mboxs;
662 blk_size = fmablk->gnm_blk_size;
663 state = fmablk->gnm_state;
664 hndl.qword1 = fmablk->gnm_hndl.qword1;
665 hndl.qword2 = fmablk->gnm_hndl.qword2;
667 spin_unlock(&dev->gnd_fmablk_lock);
670 seq_printf(s, "%5d %4s %6d/%5d/%5d %9d %18p "LPX64"."LPX64"\n",
671 (int) gseq->gsmsg_off, kgnilnd_fmablk_state2str(state),
672 avail_mboxs, held_mboxs, num_mboxs, blk_size,
673 fmablk, hndl.qword1, hndl.qword2);
675 seq_printf(s, "%5d %4s %6d/%5d/%5d %9d %18p %37s\n",
676 (int) gseq->gsmsg_off, kgnilnd_fmablk_state2str(state),
677 avail_mboxs, held_mboxs, num_mboxs, blk_size,
678 fmablk, "PURGATORY.HOLD");
684 static struct seq_operations kgn_smsg_sops = {
685 .start = kgnilnd_smsg_seq_start,
686 .stop = kgnilnd_smsg_seq_stop,
687 .next = kgnilnd_smsg_seq_next,
688 .show = kgnilnd_smsg_seq_show,
693 kgnilnd_smsg_seq_open(struct inode *inode, struct file *file)
698 rc = seq_open(file, &kgn_smsg_sops);
700 sf = file->private_data;
701 sf->private = PDE_DATA(inode);
707 static struct file_operations kgn_smsg_fops = {
708 .owner = THIS_MODULE,
709 .open = kgnilnd_smsg_seq_open,
712 .release = seq_release,
717 struct list_head *gconn_list;
718 kgn_conn_t *gconn_conn;
721 } kgn_conn_seq_iter_t;
724 kgnilnd_conn_seq_seek(kgn_conn_seq_iter_t *gseq, loff_t off)
726 struct list_head *list, *tmp;
731 gseq->gconn_hashidx = 0;
732 gseq->gconn_list = NULL;
735 if (off > atomic_read(&kgnilnd_data.kgn_nconns)) {
736 gseq->gconn_list = NULL;
740 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
741 if (gseq->gconn_list != NULL &&
742 gseq->gconn_version != kgnilnd_data.kgn_conn_version) {
748 if ((gseq->gconn_list == NULL) ||
749 (gseq->gconn_off > off) ||
750 (gseq->gconn_hashidx >= *kgnilnd_tunables.kgn_peer_hash_size)) {
751 /* search from start */
752 gseq->gconn_hashidx = 0;
753 list = &kgnilnd_data.kgn_conns[gseq->gconn_hashidx];
756 /* continue current search */
757 list = gseq->gconn_list;
760 gseq->gconn_version = kgnilnd_data.kgn_conn_version;
761 gseq->gconn_off = off;
765 list_for_each(tmp, list) {
768 conn = list_entry(tmp, kgn_conn_t, gnc_hashlist);
769 gseq->gconn_conn = conn;
775 /* if we got through this hash bucket with 'off' still to go, try next*/
776 gseq->gconn_hashidx++;
778 (gseq->gconn_hashidx < *kgnilnd_tunables.kgn_peer_hash_size)) {
779 list = &kgnilnd_data.kgn_conns[gseq->gconn_hashidx];
783 gseq->gconn_list = NULL;
786 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
791 kgnilnd_conn_seq_start(struct seq_file *s, loff_t *pos)
794 kgn_conn_seq_iter_t *gseq;
797 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
801 LIBCFS_ALLOC(gseq, sizeof(*gseq));
803 CERROR("could not allocate conn sequence iterator\n");
807 /* only doing device 0 for now */
808 gseq->gconn_list = NULL;
809 rc = kgnilnd_conn_seq_seek(gseq, *pos);
813 LIBCFS_FREE(gseq, sizeof(*gseq));
818 kgnilnd_conn_seq_stop(struct seq_file *s, void *iter)
820 kgn_conn_seq_iter_t *gseq = iter;
823 LIBCFS_FREE(gseq, sizeof(*gseq));
827 kgnilnd_conn_seq_next(struct seq_file *s, void *iter, loff_t *pos)
829 kgn_conn_seq_iter_t *gseq = iter;
831 loff_t next = *pos + 1;
833 rc = kgnilnd_conn_seq_seek(gseq, next);
835 LIBCFS_FREE(gseq, sizeof(*gseq));
843 kgnilnd_conn_seq_show(struct seq_file *s, void *iter)
845 kgn_conn_seq_iter_t *gseq = iter;
846 kgn_peer_t *peer = NULL;
849 /* there is no header data for conns, so offset 0 is the first
852 conn = gseq->gconn_conn;
853 LASSERT(conn != NULL);
855 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
856 if (gseq->gconn_list != NULL &&
857 gseq->gconn_version != kgnilnd_data.kgn_conn_version) {
859 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
863 /* instead of saving off the data, just refcount */
864 kgnilnd_conn_addref(conn);
865 if (conn->gnc_peer) {
866 /* don't use link - after unlock it could get nuked */
867 peer = conn->gnc_peer;
868 kgnilnd_peer_addref(peer);
871 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
873 seq_printf(s, "%p->%s [%d] q %d/%d/%d "
874 "tx sq %u %dms/%dms "
875 "rx sq %u %dms/%dms "
876 "noop r/s %d/%d w/s/cq %lds/%lds/%lds "
877 "sched a/d %lds/%lds "
878 "tx_re "LPD64" TO %ds %s\n",
879 conn, peer ? libcfs_nid2str(peer->gnp_nid) : "<?>",
880 atomic_read(&conn->gnc_refcount),
881 kgnilnd_count_list(&conn->gnc_fmaq),
882 atomic_read(&conn->gnc_nlive_fma),
883 atomic_read(&conn->gnc_nlive_rdma),
885 jiffies_to_msecs(jiffies - conn->gnc_last_tx),
886 jiffies_to_msecs(jiffies - conn->gnc_last_tx_cq),
888 jiffies_to_msecs(jiffies - conn->gnc_last_rx),
889 jiffies_to_msecs(jiffies - conn->gnc_last_rx_cq),
890 atomic_read(&conn->gnc_reaper_noop),
891 atomic_read(&conn->gnc_sched_noop),
892 cfs_duration_sec(jiffies - conn->gnc_last_noop_want),
893 cfs_duration_sec(jiffies - conn->gnc_last_noop_sent),
894 cfs_duration_sec(jiffies - conn->gnc_last_noop_cq),
895 cfs_duration_sec(jiffies - conn->gnc_last_sched_ask),
896 cfs_duration_sec(jiffies - conn->gnc_last_sched_do),
897 conn->gnc_tx_retrans, conn->gnc_timeout,
898 kgnilnd_conn_state2str(conn));
901 kgnilnd_peer_decref(peer);
902 kgnilnd_conn_decref(conn);
907 static struct seq_operations kgn_conn_sops = {
908 .start = kgnilnd_conn_seq_start,
909 .stop = kgnilnd_conn_seq_stop,
910 .next = kgnilnd_conn_seq_next,
911 .show = kgnilnd_conn_seq_show,
915 #define KGN_DEBUG_PEER_NID_DEFAULT -1
916 static int kgnilnd_debug_peer_nid = KGN_DEBUG_PEER_NID_DEFAULT;
919 kgnilnd_proc_peer_conns_write(struct file *file, const char *ubuffer,
920 unsigned long count, void *data)
925 if (count >= sizeof(dummy) || count == 0)
928 if (copy_from_user(dummy, ubuffer, count))
931 rc = sscanf(dummy, "%d", &kgnilnd_debug_peer_nid);
940 /* debug data to print from conns associated with peer nid
943 - mbox_addr (msg_buffer + mbox_offset)
962 kgnilnd_proc_peer_conns_read(char *page, char **start, off_t off,
963 int count, int *eof, void *data)
973 if (kgnilnd_debug_peer_nid == KGN_DEBUG_PEER_NID_DEFAULT) {
974 rc = sprintf(page, "peer_conns not initialized\n");
978 /* sample date/time stamp - print time in UTC
979 * 2012-12-11T16:06:16.966751 123@gni ...
981 getnstimeofday(&now);
982 time_to_tm(now.tv_sec, 0, &ctm);
985 write_lock(&kgnilnd_data.kgn_peer_conn_lock);
986 peer = kgnilnd_find_peer_locked(kgnilnd_debug_peer_nid);
989 rc = sprintf(page, "peer not found for this nid %d\n",
990 kgnilnd_debug_peer_nid);
991 write_unlock(&kgnilnd_data.kgn_peer_conn_lock);
995 list_for_each_entry(conn, &peer->gnp_conns, gnc_list) {
996 len += scnprintf(page, count - len,
997 "%04ld-%02d-%02dT%02d:%02d:%02d.%06ld %s "
1003 "err %d peer err %d "
1004 "tx sq %u %dms/%dms "
1005 "rx sq %u %dms/%dms/%dms "
1007 ctm.tm_year+1900, ctm.tm_mon+1, ctm.tm_mday,
1008 ctm.tm_hour, ctm.tm_min, ctm.tm_sec, now.tv_nsec,
1009 libcfs_nid2str(peer->gnp_nid),
1010 conn->remote_mbox_addr,
1011 kgnilnd_conn_dgram_type2str(conn->gnc_dgram_type),
1012 kgnilnd_conn_state2str(conn),
1013 conn->gnc_in_purgatory,
1014 conn->gnc_close_sent,
1015 conn->gnc_close_recvd,
1017 conn->gnc_peer_error,
1019 jiffies_to_msecs(jifs - conn->gnc_last_tx),
1020 jiffies_to_msecs(jifs - conn->gnc_last_tx_cq),
1022 jiffies_to_msecs(jifs - conn->gnc_first_rx),
1023 jiffies_to_msecs(jifs - conn->gnc_last_rx),
1024 jiffies_to_msecs(jifs - conn->gnc_last_rx_cq),
1025 conn->gnc_tx_retrans);
1028 write_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1033 kgnilnd_conn_seq_open(struct inode *inode, struct file *file)
1035 struct seq_file *sf;
1038 rc = seq_open(file, &kgn_conn_sops);
1040 sf = file->private_data;
1041 sf->private = PDE_DATA(inode);
1047 static struct file_operations kgn_conn_fops = {
1048 .owner = THIS_MODULE,
1049 .open = kgnilnd_conn_seq_open,
1051 .llseek = seq_lseek,
1052 .release = seq_release,
1056 __u64 gpeer_version;
1057 struct list_head *gpeer_list;
1058 kgn_peer_t *gpeer_peer;
1061 } kgn_peer_seq_iter_t;
1064 kgnilnd_peer_seq_seek(kgn_peer_seq_iter_t *gseq, loff_t off)
1066 struct list_head *list, *tmp;
1071 gseq->gpeer_hashidx = 0;
1072 gseq->gpeer_list = NULL;
1075 if (off > atomic_read(&kgnilnd_data.kgn_npeers)) {
1076 gseq->gpeer_list = NULL;
1080 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
1081 if (gseq->gpeer_list != NULL &&
1082 gseq->gpeer_version != kgnilnd_data.kgn_peer_version) {
1088 if ((gseq->gpeer_list == NULL) ||
1089 (gseq->gpeer_off > off) ||
1090 (gseq->gpeer_hashidx >= *kgnilnd_tunables.kgn_peer_hash_size)) {
1091 /* search from start */
1092 gseq->gpeer_hashidx = 0;
1093 list = &kgnilnd_data.kgn_peers[gseq->gpeer_hashidx];
1096 /* continue current search */
1097 list = gseq->gpeer_list;
1100 gseq->gpeer_version = kgnilnd_data.kgn_peer_version;
1101 gseq->gpeer_off = off;
1105 list_for_each(tmp, list) {
1108 peer = list_entry(tmp, kgn_peer_t, gnp_list);
1109 gseq->gpeer_peer = peer;
1115 /* if we got through this hash bucket with 'off' still to go, try next*/
1116 gseq->gpeer_hashidx++;
1117 if ((here <= off) &&
1118 (gseq->gpeer_hashidx < *kgnilnd_tunables.kgn_peer_hash_size)) {
1119 list = &kgnilnd_data.kgn_peers[gseq->gpeer_hashidx];
1123 gseq->gpeer_list = NULL;
1126 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1131 kgnilnd_peer_seq_start(struct seq_file *s, loff_t *pos)
1134 kgn_peer_seq_iter_t *gseq;
1137 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
1141 LIBCFS_ALLOC(gseq, sizeof(*gseq));
1143 CERROR("could not allocate peer sequence iterator\n");
1147 /* only doing device 0 for now */
1148 gseq->gpeer_list = NULL;
1149 rc = kgnilnd_peer_seq_seek(gseq, *pos);
1153 LIBCFS_FREE(gseq, sizeof(*gseq));
1158 kgnilnd_peer_seq_stop(struct seq_file *s, void *iter)
1160 kgn_peer_seq_iter_t *gseq = iter;
1163 LIBCFS_FREE(gseq, sizeof(*gseq));
1167 kgnilnd_peer_seq_next(struct seq_file *s, void *iter, loff_t *pos)
1169 kgn_peer_seq_iter_t *gseq = iter;
1171 loff_t next = *pos + 1;
1173 rc = kgnilnd_peer_seq_seek(gseq, next);
1175 LIBCFS_FREE(gseq, sizeof(*gseq));
1183 kgnilnd_peer_seq_show(struct seq_file *s, void *iter)
1185 kgn_peer_seq_iter_t *gseq = iter;
1190 /* there is no header data for peers, so offset 0 is the first
1193 peer = gseq->gpeer_peer;
1194 LASSERT(peer != NULL);
1196 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
1197 if (gseq->gpeer_list != NULL &&
1198 gseq->gpeer_version != kgnilnd_data.kgn_peer_version) {
1200 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1204 /* instead of saving off the data, just refcount */
1205 kgnilnd_peer_addref(peer);
1206 conn = kgnilnd_find_conn_locked(peer);
1208 if (peer->gnp_connecting) {
1210 } else if (conn != NULL) {
1216 list_for_each_entry(conn, &peer->gnp_conns, gnc_list) {
1217 if (conn->gnc_in_purgatory) {
1222 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1224 seq_printf(s, "%p->%s [%d] %s NIC 0x%x q %d conn %c purg %d "
1225 "last %d@%dms dgram %d@%dms "
1226 "reconn %dms to %lus \n",
1227 peer, libcfs_nid2str(peer->gnp_nid),
1228 atomic_read(&peer->gnp_refcount),
1229 (peer->gnp_down == GNILND_RCA_NODE_DOWN) ? "down" : "up",
1231 kgnilnd_count_list(&peer->gnp_tx_queue),
1234 peer->gnp_last_errno,
1235 jiffies_to_msecs(jiffies - peer->gnp_last_alive),
1236 peer->gnp_last_dgram_errno,
1237 jiffies_to_msecs(jiffies - peer->gnp_last_dgram_time),
1238 peer->gnp_reconnect_interval != 0
1239 ? jiffies_to_msecs(jiffies - peer->gnp_reconnect_time)
1241 peer->gnp_reconnect_interval);
1243 kgnilnd_peer_decref(peer);
1248 static struct seq_operations kgn_peer_sops = {
1249 .start = kgnilnd_peer_seq_start,
1250 .stop = kgnilnd_peer_seq_stop,
1251 .next = kgnilnd_peer_seq_next,
1252 .show = kgnilnd_peer_seq_show,
1256 kgnilnd_peer_seq_open(struct inode *inode, struct file *file)
1258 struct seq_file *sf;
1261 rc = seq_open(file, &kgn_peer_sops);
1263 sf = file->private_data;
1264 sf->private = PDE_DATA(inode);
1270 static struct file_operations kgn_peer_fops = {
1271 .owner = THIS_MODULE,
1272 .open = kgnilnd_peer_seq_open,
1274 .llseek = seq_lseek,
1275 .release = seq_release,
1278 static struct proc_dir_entry *kgn_proc_root;
1281 kgnilnd_proc_init(void)
1283 struct proc_dir_entry *pde;
1288 kgn_proc_root = proc_mkdir(libcfs_lnd2modname(GNILND), NULL);
1289 if (kgn_proc_root == NULL) {
1290 CERROR("couldn't create proc dir %s\n",
1291 libcfs_lnd2modname(GNILND));
1295 /* Initialize CKSUM_TEST */
1296 pde = create_proc_entry(GNILND_PROC_CKSUM_TEST, 0200, kgn_proc_root);
1298 CERROR("couldn't create proc entry %s\n", GNILND_PROC_CKSUM_TEST);
1299 GOTO(remove_dir, rc = -ENOENT);
1303 pde->write_proc = kgnilnd_proc_cksum_test_write;
1305 /* Initialize STATS */
1306 pde = create_proc_entry(GNILND_PROC_STATS, 0644, kgn_proc_root);
1308 CERROR("couldn't create proc entry %s\n", GNILND_PROC_STATS);
1309 GOTO(remove_test, rc = -ENOENT);
1313 pde->read_proc = kgnilnd_proc_stats_read;
1314 pde->write_proc = kgnilnd_proc_stats_write;
1316 /* Initialize MDD */
1317 pde = create_proc_entry(GNILND_PROC_MDD, 0444, kgn_proc_root);
1319 CERROR("couldn't create proc entry %s\n", GNILND_PROC_MDD);
1320 GOTO(remove_stats, rc = -ENOENT);
1324 pde->proc_fops = &kgn_mdd_fops;
1326 /* Initialize SMSG */
1327 pde = create_proc_entry(GNILND_PROC_SMSG, 0444, kgn_proc_root);
1329 CERROR("couldn't create proc entry %s\n", GNILND_PROC_SMSG);
1330 GOTO(remove_mdd, rc = -ENOENT);
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);
1340 GOTO(remove_smsg, rc = -ENOENT);
1344 pde->proc_fops = &kgn_conn_fops;
1346 /* Initialize peer conns debug */
1347 pde = create_proc_entry(GNILND_PROC_PEER_CONNS, 0644, kgn_proc_root);
1349 CERROR("couldn't create proc entry %s\n", GNILND_PROC_PEER_CONNS);
1350 GOTO(remove_conn, rc = -ENOENT);
1354 pde->read_proc = kgnilnd_proc_peer_conns_read;
1355 pde->write_proc = kgnilnd_proc_peer_conns_write;
1357 /* Initialize PEER */
1358 pde = create_proc_entry(GNILND_PROC_PEER, 0444, kgn_proc_root);
1360 CERROR("couldn't create proc entry %s\n", GNILND_PROC_PEER);
1361 GOTO(remove_pc, rc = -ENOENT);
1365 pde->proc_fops = &kgn_peer_fops;
1369 remove_proc_entry(GNILND_PROC_PEER_CONNS, kgn_proc_root);
1371 remove_proc_entry(GNILND_PROC_CONN, kgn_proc_root);
1373 remove_proc_entry(GNILND_PROC_SMSG, kgn_proc_root);
1375 remove_proc_entry(GNILND_PROC_MDD, kgn_proc_root);
1377 remove_proc_entry(GNILND_PROC_STATS, kgn_proc_root);
1379 remove_proc_entry(GNILND_PROC_CKSUM_TEST, kgn_proc_root);
1381 remove_proc_entry(kgn_proc_root->name, NULL);
1387 kgnilnd_proc_fini(void)
1389 remove_proc_entry(GNILND_PROC_PEER_CONNS, kgn_proc_root);
1390 remove_proc_entry(GNILND_PROC_PEER, kgn_proc_root);
1391 remove_proc_entry(GNILND_PROC_CONN, kgn_proc_root);
1392 remove_proc_entry(GNILND_PROC_MDD, kgn_proc_root);
1393 remove_proc_entry(GNILND_PROC_SMSG, kgn_proc_root);
1394 remove_proc_entry(GNILND_PROC_STATS, kgn_proc_root);
1395 remove_proc_entry(GNILND_PROC_CKSUM_TEST, kgn_proc_root);
1396 remove_proc_entry(kgn_proc_root->name, NULL);