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;
47 LIBCFS_ALLOC(src, LNET_MAX_IOV * sizeof(lnet_kiov_t));
48 LIBCFS_ALLOC(dest, LNET_MAX_IOV * sizeof(lnet_kiov_t));
50 if (src == NULL || dest == NULL) {
51 CERROR("couldn't allocate iovs\n");
52 GOTO(unwind, rc = -ENOMEM);
55 for (i = 0; i < LNET_MAX_IOV; i++) {
56 src[i].kiov_offset = 0;
57 src[i].kiov_len = PAGE_SIZE;
58 src[i].kiov_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
60 if (src[i].kiov_page == NULL) {
61 CERROR("couldn't allocate page %d\n", i);
62 GOTO(unwind, rc = -ENOMEM);
65 dest[i].kiov_offset = 0;
66 dest[i].kiov_len = PAGE_SIZE;
67 dest[i].kiov_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
69 if (dest[i].kiov_page == NULL) {
70 CERROR("couldn't allocate page %d\n", i);
71 GOTO(unwind, rc = -ENOMEM);
75 /* add extra 2 pages - one for offset of src, 2nd to allow dest offset */
76 niov = (nob / PAGE_SIZE) + 2;
77 if (niov > LNET_MAX_IOV) {
78 CERROR("bytes %d too large, requires niov %d > %d\n",
79 nob, niov, LNET_MAX_IOV);
80 GOTO(unwind, rc = -E2BIG);
84 src[0].kiov_offset = 317;
85 dest[0].kiov_offset = 592;
92 dest[0].kiov_offset -= 1;
96 src[0].kiov_offset += 1;
100 src[0].kiov_offset += 1;
101 dest[0].kiov_offset -= 1;
103 src[0].kiov_len = PAGE_SIZE - src[0].kiov_offset;
104 dest[0].kiov_len = PAGE_SIZE - dest[0].kiov_offset;
106 for (i = 0; i < niov; i++) {
107 memset(page_address(src[i].kiov_page) + src[i].kiov_offset,
108 0xf0 + i, src[i].kiov_len);
111 lnet_copy_kiov2kiov(niov, dest, 0, niov, src, 0, nob);
113 getnstimeofday(&begin);
115 for (n = 0; n < nloops; n++) {
116 CDEBUG(D_BUFFS, "case %d loop %d src %d dest %d nob %d niov %d\n",
117 caseno, n, src[0].kiov_offset, dest[0].kiov_offset, nob, niov);
118 cksum = kgnilnd_cksum_kiov(niov, src, 0, nob - (n % nob), 1);
119 cksum2 = kgnilnd_cksum_kiov(niov, dest, 0, nob - (n % nob), 1);
121 if (cksum != cksum2) {
122 CERROR("case %d loop %d different checksums %x expected %x\n",
123 j, n, cksum2, cksum);
124 GOTO(unwind, rc = -ENOKEY);
128 getnstimeofday(&end);
130 mbytes = ((__u64)nloops * nob * 2) / (1024*1024);
132 diff = kgnilnd_ts_sub(end, begin);
134 LCONSOLE_INFO("running "LPD64"MB took %ld.%ld seconds\n",
135 mbytes, diff.tv_sec, diff.tv_nsec);
138 CDEBUG(D_NET, "freeing %d pages\n", i);
139 for (i -= 1; i >= 0; i--) {
140 if (src[i].kiov_page != NULL) {
141 __free_page(src[i].kiov_page);
143 if (dest[i].kiov_page != NULL) {
144 __free_page(dest[i].kiov_page);
149 LIBCFS_FREE(src, LNET_MAX_IOV * sizeof(lnet_kiov_t));
151 LIBCFS_FREE(dest, LNET_MAX_IOV * sizeof(lnet_kiov_t));
156 kgnilnd_proc_cksum_test_write(struct file *file, const char *ubuffer,
157 unsigned long count, void *data)
159 char dummy[256 + 1] = { '\0' };
160 int testno, nloops, nbytes;
164 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
165 CERROR("can't run cksum test, kgnilnd is not initialized yet\n");
169 if (count >= sizeof(dummy) || count == 0)
172 if (copy_from_user(dummy, ubuffer, count))
175 if (sscanf(dummy, "%d:%d:%d", &testno, &nloops, &nbytes) == 3) {
176 rc = _kgnilnd_proc_run_cksum_test(testno, nloops, nbytes);
180 /* spurious, but lets us know the parse was ok */
188 kgnilnd_proc_stats_read(char *page, char **start, off_t off,
189 int count, int *eof, void *data)
195 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
197 "kgnilnd is not initialized yet\n");
201 /* only do the first device */
202 dev = &kgnilnd_data.kgn_devices[0];
204 /* sampling is racy, but so is reading this file! */
206 do_gettimeofday(&now);
208 rc = sprintf(page, "time: %lu.%lu\n"
217 "n_eager_allocs: %d\n"
218 "GART map bytes: %ld\n"
219 "TX queued maps: %d\n"
220 "TX phys nmaps: %d\n"
221 "TX phys bytes: %lu\n"
222 "TX virt nmaps: %d\n"
223 "TX virt bytes: "LPU64"\n"
224 "RDMAQ bytes_auth: %ld\n"
225 "RDMAQ bytes_left: %ld\n"
226 "RDMAQ nstalls: %d\n"
227 "dev mutex delay: %ld\n"
229 "dev n_schedule: %d\n"
230 "SMSG fast_try: %d\n"
232 "SMSG fast_block: %d\n"
234 "SMSG tx_bytes: %ld\n"
236 "SMSG rx_bytes: %ld\n"
238 "RDMA tx_bytes: %ld\n"
240 "RDMA rx_bytes: %ld\n"
244 "RDMA REV length: %d\n"
245 "RDMA REV offset: %d\n"
246 "RDMA REV copy: %d\n",
247 now.tv_sec, now.tv_usec,
248 atomic_read(&kgnilnd_data.kgn_ntx),
249 atomic_read(&kgnilnd_data.kgn_npeers),
250 atomic_read(&kgnilnd_data.kgn_nconns),
251 atomic_read(&dev->gnd_neps),
252 atomic_read(&dev->gnd_ndgrams),
253 atomic_read(&dev->gnd_nfmablk),
254 atomic_read(&dev->gnd_n_mdd), atomic_read(&dev->gnd_n_mdd_held),
255 atomic_read(&kgnilnd_data.kgn_neager_allocs),
256 atomic64_read(&dev->gnd_nbytes_map),
257 atomic_read(&dev->gnd_nq_map),
258 dev->gnd_map_nphys, dev->gnd_map_physnop * PAGE_SIZE,
259 dev->gnd_map_nvirt, dev->gnd_map_virtnob,
260 atomic64_read(&dev->gnd_rdmaq_bytes_out),
261 atomic64_read(&dev->gnd_rdmaq_bytes_ok),
262 atomic_read(&dev->gnd_rdmaq_nstalls),
263 dev->gnd_mutex_delay,
264 atomic_read(&dev->gnd_n_yield), atomic_read(&dev->gnd_n_schedule),
265 atomic_read(&dev->gnd_fast_try), atomic_read(&dev->gnd_fast_ok),
266 atomic_read(&dev->gnd_fast_block),
267 atomic_read(&dev->gnd_short_ntx), atomic64_read(&dev->gnd_short_txbytes),
268 atomic_read(&dev->gnd_short_nrx), atomic64_read(&dev->gnd_short_rxbytes),
269 atomic_read(&dev->gnd_rdma_ntx), atomic64_read(&dev->gnd_rdma_txbytes),
270 atomic_read(&dev->gnd_rdma_nrx), atomic64_read(&dev->gnd_rdma_rxbytes),
271 atomic_read(&kgnilnd_data.kgn_nvmap_short),
272 atomic_read(&kgnilnd_data.kgn_nvmap_cksum),
273 atomic_read(&kgnilnd_data.kgn_nkmap_short),
274 atomic_read(&kgnilnd_data.kgn_rev_length),
275 atomic_read(&kgnilnd_data.kgn_rev_offset),
276 atomic_read(&kgnilnd_data.kgn_rev_copy_buff));
282 kgnilnd_proc_stats_write(struct file *file, const char *ubuffer,
283 unsigned long count, void *data)
287 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
288 CERROR("kgnilnd is not initialized for stats write\n");
292 /* only do the first device */
293 dev = &kgnilnd_data.kgn_devices[0];
295 atomic_set(&dev->gnd_short_ntx, 0);
296 atomic_set(&dev->gnd_short_nrx, 0);
297 atomic64_set(&dev->gnd_short_txbytes, 0);
298 atomic64_set(&dev->gnd_short_rxbytes, 0);
299 atomic_set(&dev->gnd_rdma_ntx, 0);
300 atomic_set(&dev->gnd_rdma_nrx, 0);
301 atomic_set(&dev->gnd_fast_ok, 0);
302 atomic_set(&dev->gnd_fast_try, 0);
303 atomic_set(&dev->gnd_fast_block, 0);
304 atomic64_set(&dev->gnd_rdma_txbytes, 0);
305 atomic64_set(&dev->gnd_rdma_rxbytes, 0);
306 atomic_set(&dev->gnd_rdmaq_nstalls, 0);
307 set_mb(dev->gnd_mutex_delay, 0);
308 atomic_set(&dev->gnd_n_yield, 0);
309 atomic_set(&dev->gnd_n_schedule, 0);
310 atomic_set(&kgnilnd_data.kgn_nvmap_short, 0);
311 atomic_set(&kgnilnd_data.kgn_nvmap_cksum, 0);
312 atomic_set(&kgnilnd_data.kgn_nkmap_short, 0);
313 /* sampling is racy, but so is writing this file! */
319 kgn_device_t *gmdd_dev;
322 } kgn_mdd_seq_iter_t;
325 kgnilnd_mdd_seq_seek(kgn_mdd_seq_iter_t *gseq, loff_t off)
333 gseq->gmdd_tx = NULL;
340 if (tx == NULL || gseq->gmdd_off > off) {
341 /* search from start */
342 r = gseq->gmdd_dev->gnd_map_list.next;
345 /* continue current search */
346 r = &tx->tx_map_list;
347 here = gseq->gmdd_off;
350 gseq->gmdd_off = off;
352 while (r != &gseq->gmdd_dev->gnd_map_list) {
355 t = list_entry(r, kgn_tx_t, tx_map_list);
366 gseq->gmdd_tx = NULL;
373 kgnilnd_mdd_seq_start(struct seq_file *s, loff_t *pos)
376 kgn_mdd_seq_iter_t *gseq;
379 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
383 LIBCFS_ALLOC(gseq, sizeof(*gseq));
385 CERROR("could not allocate mdd sequence iterator\n");
389 /* only doing device 0 for now */
390 gseq->gmdd_dev = &kgnilnd_data.kgn_devices[0];
391 gseq->gmdd_tx = NULL;
393 /* need to lock map while we poke - huge disturbance
394 * but without it, no way to get the data printed */
395 spin_lock(&gseq->gmdd_dev->gnd_map_lock);
397 /* set private to gseq for stop */
400 rc = kgnilnd_mdd_seq_seek(gseq, *pos);
408 kgnilnd_mdd_seq_stop(struct seq_file *s, void *iter)
410 kgn_mdd_seq_iter_t *gseq = s->private;
413 spin_unlock(&gseq->gmdd_dev->gnd_map_lock);
414 LIBCFS_FREE(gseq, sizeof(*gseq));
419 kgnilnd_mdd_seq_next(struct seq_file *s, void *iter, loff_t *pos)
421 kgn_mdd_seq_iter_t *gseq = iter;
423 loff_t next = *pos + 1;
425 rc = kgnilnd_mdd_seq_seek(gseq, next);
434 kgnilnd_mdd_seq_show(struct seq_file *s, void *iter)
436 kgn_mdd_seq_iter_t *gseq = iter;
442 gni_mem_handle_t hndl;
444 if (gseq->gmdd_off == 0) {
445 seq_printf(s, "%s %22s %16s %8s %8s %37s\n",
446 "tx", "tx_id", "nob", "physnop",
447 "buftype", "mem handle");
454 id = tx->tx_id.txe_smsg_id;
456 physnop = tx->tx_phys_npages;
457 buftype = tx->tx_buftype;
458 hndl.qword1 = tx->tx_map_key.qword1;
459 hndl.qword2 = tx->tx_map_key.qword2;
461 seq_printf(s, "%p %x %16"LPF64"u %8d %#8x "LPX64"."LPX64"x\n",
462 tx, id, nob, physnop, buftype,
463 hndl.qword1, hndl.qword2);
468 static struct seq_operations kgn_mdd_sops = {
469 .start = kgnilnd_mdd_seq_start,
470 .stop = kgnilnd_mdd_seq_stop,
471 .next = kgnilnd_mdd_seq_next,
472 .show = kgnilnd_mdd_seq_show,
477 kgnilnd_mdd_seq_open(struct inode *inode, struct file *file)
482 rc = seq_open(file, &kgn_mdd_sops);
484 sf = file->private_data;
486 /* NULL means we've not yet open() */
492 static struct file_operations kgn_mdd_fops = {
493 .owner = THIS_MODULE,
494 .open = kgnilnd_mdd_seq_open,
497 .release = seq_release,
502 kgn_device_t *gsmsg_dev;
503 kgn_fma_memblock_t *gsmsg_fmablk;
505 } kgn_smsg_seq_iter_t;
508 kgnilnd_smsg_seq_seek(kgn_smsg_seq_iter_t *gseq, loff_t off)
510 kgn_fma_memblock_t *fmablk;
516 /* offset 0 is the header, so we start real entries at
517 * here == off == 1 */
519 gseq->gsmsg_fmablk = NULL;
524 fmablk = gseq->gsmsg_fmablk;
525 dev = gseq->gsmsg_dev;
527 spin_lock(&dev->gnd_fmablk_lock);
529 if (fmablk != NULL &&
530 gseq->gsmsg_version != atomic_read(&dev->gnd_fmablk_vers)) {
536 if (fmablk == NULL || gseq->gsmsg_off > off) {
537 /* search from start */
538 r = dev->gnd_fma_buffs.next;
541 /* continue current search */
542 r = &fmablk->gnm_bufflist;
543 here = gseq->gsmsg_off;
546 gseq->gsmsg_version = atomic_read(&dev->gnd_fmablk_vers);
547 gseq->gsmsg_off = off;
549 while (r != &dev->gnd_fma_buffs) {
550 kgn_fma_memblock_t *t;
552 t = list_entry(r, kgn_fma_memblock_t, gnm_bufflist);
555 gseq->gsmsg_fmablk = t;
563 gseq->gsmsg_fmablk = NULL;
566 spin_unlock(&dev->gnd_fmablk_lock);
571 kgnilnd_smsg_seq_start(struct seq_file *s, loff_t *pos)
574 kgn_smsg_seq_iter_t *gseq;
577 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
581 LIBCFS_ALLOC(gseq, sizeof(*gseq));
583 CERROR("could not allocate smsg sequence iterator\n");
587 /* only doing device 0 for now */
588 gseq->gsmsg_dev = &kgnilnd_data.kgn_devices[0];
589 gseq->gsmsg_fmablk = NULL;
590 rc = kgnilnd_smsg_seq_seek(gseq, *pos);
594 LIBCFS_FREE(gseq, sizeof(*gseq));
599 kgnilnd_smsg_seq_stop(struct seq_file *s, void *iter)
601 kgn_smsg_seq_iter_t *gseq = iter;
604 LIBCFS_FREE(gseq, sizeof(*gseq));
608 kgnilnd_smsg_seq_next(struct seq_file *s, void *iter, loff_t *pos)
610 kgn_smsg_seq_iter_t *gseq = iter;
612 loff_t next = *pos + 1;
614 rc = kgnilnd_smsg_seq_seek(gseq, next);
616 LIBCFS_FREE(gseq, sizeof(*gseq));
624 kgnilnd_smsg_seq_show(struct seq_file *s, void *iter)
626 kgn_smsg_seq_iter_t *gseq = iter;
627 kgn_fma_memblock_t *fmablk;
629 int avail_mboxs, held_mboxs, num_mboxs;
630 unsigned int blk_size;
632 kgn_fmablk_state_t state;
633 gni_mem_handle_t hndl;
635 if (gseq->gsmsg_off == 0) {
636 seq_printf(s, "%5s %4s %6s/%5s/%5s %9s %18s %37s\n",
637 "blk#", "type", "avail", "held", "total", "size",
638 "fmablk", "mem handle");
642 fmablk = gseq->gsmsg_fmablk;
643 dev = gseq->gsmsg_dev;
644 LASSERT(fmablk != NULL);
646 spin_lock(&dev->gnd_fmablk_lock);
648 if (gseq->gsmsg_version != atomic_read(&dev->gnd_fmablk_vers)) {
650 spin_unlock(&dev->gnd_fmablk_lock);
654 live = fmablk->gnm_hold_timeout == 0;
655 /* none are available if it isn't live... */
656 avail_mboxs = live ? fmablk->gnm_avail_mboxs : 0;
657 held_mboxs = fmablk->gnm_held_mboxs;
658 num_mboxs = fmablk->gnm_num_mboxs;
659 blk_size = fmablk->gnm_blk_size;
660 state = fmablk->gnm_state;
661 hndl.qword1 = fmablk->gnm_hndl.qword1;
662 hndl.qword2 = fmablk->gnm_hndl.qword2;
664 spin_unlock(&dev->gnd_fmablk_lock);
667 seq_printf(s, "%5d %4s %6d/%5d/%5d %9d %18p "LPX64"."LPX64"\n",
668 (int) gseq->gsmsg_off, kgnilnd_fmablk_state2str(state),
669 avail_mboxs, held_mboxs, num_mboxs, blk_size,
670 fmablk, hndl.qword1, hndl.qword2);
672 seq_printf(s, "%5d %4s %6d/%5d/%5d %9d %18p %37s\n",
673 (int) gseq->gsmsg_off, kgnilnd_fmablk_state2str(state),
674 avail_mboxs, held_mboxs, num_mboxs, blk_size,
675 fmablk, "PURGATORY.HOLD");
681 static struct seq_operations kgn_smsg_sops = {
682 .start = kgnilnd_smsg_seq_start,
683 .stop = kgnilnd_smsg_seq_stop,
684 .next = kgnilnd_smsg_seq_next,
685 .show = kgnilnd_smsg_seq_show,
690 kgnilnd_smsg_seq_open(struct inode *inode, struct file *file)
692 struct proc_dir_entry *dp = PDE(inode);
696 rc = seq_open(file, &kgn_smsg_sops);
698 sf = file->private_data;
699 sf->private = dp->data;
705 static struct file_operations kgn_smsg_fops = {
706 .owner = THIS_MODULE,
707 .open = kgnilnd_smsg_seq_open,
710 .release = seq_release,
715 struct list_head *gconn_list;
716 kgn_conn_t *gconn_conn;
719 } kgn_conn_seq_iter_t;
722 kgnilnd_conn_seq_seek(kgn_conn_seq_iter_t *gseq, loff_t off)
724 struct list_head *list, *tmp;
729 gseq->gconn_hashidx = 0;
730 gseq->gconn_list = NULL;
733 if (off > atomic_read(&kgnilnd_data.kgn_nconns)) {
734 gseq->gconn_list = NULL;
738 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
739 if (gseq->gconn_list != NULL &&
740 gseq->gconn_version != kgnilnd_data.kgn_conn_version) {
746 if ((gseq->gconn_list == NULL) ||
747 (gseq->gconn_off > off) ||
748 (gseq->gconn_hashidx >= *kgnilnd_tunables.kgn_peer_hash_size)) {
749 /* search from start */
750 gseq->gconn_hashidx = 0;
751 list = &kgnilnd_data.kgn_conns[gseq->gconn_hashidx];
754 /* continue current search */
755 list = gseq->gconn_list;
758 gseq->gconn_version = kgnilnd_data.kgn_conn_version;
759 gseq->gconn_off = off;
763 list_for_each(tmp, list) {
766 conn = list_entry(tmp, kgn_conn_t, gnc_hashlist);
767 gseq->gconn_conn = conn;
773 /* if we got through this hash bucket with 'off' still to go, try next*/
774 gseq->gconn_hashidx++;
776 (gseq->gconn_hashidx < *kgnilnd_tunables.kgn_peer_hash_size)) {
777 list = &kgnilnd_data.kgn_conns[gseq->gconn_hashidx];
781 gseq->gconn_list = NULL;
784 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
789 kgnilnd_conn_seq_start(struct seq_file *s, loff_t *pos)
792 kgn_conn_seq_iter_t *gseq;
795 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
799 LIBCFS_ALLOC(gseq, sizeof(*gseq));
801 CERROR("could not allocate conn sequence iterator\n");
805 /* only doing device 0 for now */
806 gseq->gconn_list = NULL;
807 rc = kgnilnd_conn_seq_seek(gseq, *pos);
811 LIBCFS_FREE(gseq, sizeof(*gseq));
816 kgnilnd_conn_seq_stop(struct seq_file *s, void *iter)
818 kgn_conn_seq_iter_t *gseq = iter;
821 LIBCFS_FREE(gseq, sizeof(*gseq));
825 kgnilnd_conn_seq_next(struct seq_file *s, void *iter, loff_t *pos)
827 kgn_conn_seq_iter_t *gseq = iter;
829 loff_t next = *pos + 1;
831 rc = kgnilnd_conn_seq_seek(gseq, next);
833 LIBCFS_FREE(gseq, sizeof(*gseq));
841 kgnilnd_conn_seq_show(struct seq_file *s, void *iter)
843 kgn_conn_seq_iter_t *gseq = iter;
844 kgn_peer_t *peer = NULL;
847 /* there is no header data for conns, so offset 0 is the first
850 conn = gseq->gconn_conn;
851 LASSERT(conn != NULL);
853 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
854 if (gseq->gconn_list != NULL &&
855 gseq->gconn_version != kgnilnd_data.kgn_conn_version) {
857 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
861 /* instead of saving off the data, just refcount */
862 kgnilnd_conn_addref(conn);
863 if (conn->gnc_peer) {
864 /* don't use link - after unlock it could get nuked */
865 peer = conn->gnc_peer;
866 kgnilnd_peer_addref(peer);
869 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
871 seq_printf(s, "%p->%s [%d] q %d/%d/%d "
872 "tx sq %u %dms/%dms "
873 "rx sq %u %dms/%dms "
874 "noop r/s %d/%d w/s/cq %lds/%lds/%lds "
875 "sched a/d %lds/%lds "
876 "tx_re "LPD64" TO %ds %s\n",
877 conn, peer ? libcfs_nid2str(peer->gnp_nid) : "<?>",
878 atomic_read(&conn->gnc_refcount),
879 kgnilnd_count_list(&conn->gnc_fmaq),
880 atomic_read(&conn->gnc_nlive_fma),
881 atomic_read(&conn->gnc_nlive_rdma),
883 jiffies_to_msecs(jiffies - conn->gnc_last_tx),
884 jiffies_to_msecs(jiffies - conn->gnc_last_tx_cq),
886 jiffies_to_msecs(jiffies - conn->gnc_last_rx),
887 jiffies_to_msecs(jiffies - conn->gnc_last_rx_cq),
888 atomic_read(&conn->gnc_reaper_noop),
889 atomic_read(&conn->gnc_sched_noop),
890 cfs_duration_sec(jiffies - conn->gnc_last_noop_want),
891 cfs_duration_sec(jiffies - conn->gnc_last_noop_sent),
892 cfs_duration_sec(jiffies - conn->gnc_last_noop_cq),
893 cfs_duration_sec(jiffies - conn->gnc_last_sched_ask),
894 cfs_duration_sec(jiffies - conn->gnc_last_sched_do),
895 conn->gnc_tx_retrans, conn->gnc_timeout,
896 kgnilnd_conn_state2str(conn));
899 kgnilnd_peer_decref(peer);
900 kgnilnd_conn_decref(conn);
905 static struct seq_operations kgn_conn_sops = {
906 .start = kgnilnd_conn_seq_start,
907 .stop = kgnilnd_conn_seq_stop,
908 .next = kgnilnd_conn_seq_next,
909 .show = kgnilnd_conn_seq_show,
913 #define KGN_DEBUG_PEER_NID_DEFAULT -1
914 static int kgnilnd_debug_peer_nid = KGN_DEBUG_PEER_NID_DEFAULT;
917 kgnilnd_proc_peer_conns_write(struct file *file, const char *ubuffer,
918 unsigned long count, void *data)
923 if (count >= sizeof(dummy) || count == 0)
926 if (copy_from_user(dummy, ubuffer, count))
929 rc = sscanf(dummy, "%d", &kgnilnd_debug_peer_nid);
938 /* debug data to print from conns associated with peer nid
941 - mbox_addr (msg_buffer + mbox_offset)
960 kgnilnd_proc_peer_conns_read(char *page, char **start, off_t off,
961 int count, int *eof, void *data)
971 if (kgnilnd_debug_peer_nid == KGN_DEBUG_PEER_NID_DEFAULT) {
972 rc = sprintf(page, "peer_conns not initialized\n");
976 /* sample date/time stamp - print time in UTC
977 * 2012-12-11T16:06:16.966751 123@gni ...
979 getnstimeofday(&now);
980 time_to_tm(now.tv_sec, 0, &ctm);
983 write_lock(&kgnilnd_data.kgn_peer_conn_lock);
984 peer = kgnilnd_find_peer_locked(kgnilnd_debug_peer_nid);
987 rc = sprintf(page, "peer not found for this nid %d\n",
988 kgnilnd_debug_peer_nid);
989 write_unlock(&kgnilnd_data.kgn_peer_conn_lock);
993 list_for_each_entry(conn, &peer->gnp_conns, gnc_list) {
994 len += scnprintf(page, count - len,
995 "%04ld-%02d-%02dT%02d:%02d:%02d.%06ld %s "
1001 "err %d peer err %d "
1002 "tx sq %u %dms/%dms "
1003 "rx sq %u %dms/%dms/%dms "
1005 ctm.tm_year+1900, ctm.tm_mon+1, ctm.tm_mday,
1006 ctm.tm_hour, ctm.tm_min, ctm.tm_sec, now.tv_nsec,
1007 libcfs_nid2str(peer->gnp_nid),
1008 conn->remote_mbox_addr,
1009 kgnilnd_conn_dgram_type2str(conn->gnc_dgram_type),
1010 kgnilnd_conn_state2str(conn),
1011 conn->gnc_in_purgatory,
1012 conn->gnc_close_sent,
1013 conn->gnc_close_recvd,
1015 conn->gnc_peer_error,
1017 jiffies_to_msecs(jifs - conn->gnc_last_tx),
1018 jiffies_to_msecs(jifs - conn->gnc_last_tx_cq),
1020 jiffies_to_msecs(jifs - conn->gnc_first_rx),
1021 jiffies_to_msecs(jifs - conn->gnc_last_rx),
1022 jiffies_to_msecs(jifs - conn->gnc_last_rx_cq),
1023 conn->gnc_tx_retrans);
1026 write_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1031 kgnilnd_conn_seq_open(struct inode *inode, struct file *file)
1033 struct proc_dir_entry *dp = PDE(inode);
1034 struct seq_file *sf;
1037 rc = seq_open(file, &kgn_conn_sops);
1039 sf = file->private_data;
1040 sf->private = dp->data;
1046 static struct file_operations kgn_conn_fops = {
1047 .owner = THIS_MODULE,
1048 .open = kgnilnd_conn_seq_open,
1050 .llseek = seq_lseek,
1051 .release = seq_release,
1055 __u64 gpeer_version;
1056 struct list_head *gpeer_list;
1057 kgn_peer_t *gpeer_peer;
1060 } kgn_peer_seq_iter_t;
1063 kgnilnd_peer_seq_seek(kgn_peer_seq_iter_t *gseq, loff_t off)
1065 struct list_head *list, *tmp;
1070 gseq->gpeer_hashidx = 0;
1071 gseq->gpeer_list = NULL;
1074 if (off > atomic_read(&kgnilnd_data.kgn_npeers)) {
1075 gseq->gpeer_list = NULL;
1079 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
1080 if (gseq->gpeer_list != NULL &&
1081 gseq->gpeer_version != kgnilnd_data.kgn_peer_version) {
1087 if ((gseq->gpeer_list == NULL) ||
1088 (gseq->gpeer_off > off) ||
1089 (gseq->gpeer_hashidx >= *kgnilnd_tunables.kgn_peer_hash_size)) {
1090 /* search from start */
1091 gseq->gpeer_hashidx = 0;
1092 list = &kgnilnd_data.kgn_peers[gseq->gpeer_hashidx];
1095 /* continue current search */
1096 list = gseq->gpeer_list;
1099 gseq->gpeer_version = kgnilnd_data.kgn_peer_version;
1100 gseq->gpeer_off = off;
1104 list_for_each(tmp, list) {
1107 peer = list_entry(tmp, kgn_peer_t, gnp_list);
1108 gseq->gpeer_peer = peer;
1114 /* if we got through this hash bucket with 'off' still to go, try next*/
1115 gseq->gpeer_hashidx++;
1116 if ((here <= off) &&
1117 (gseq->gpeer_hashidx < *kgnilnd_tunables.kgn_peer_hash_size)) {
1118 list = &kgnilnd_data.kgn_peers[gseq->gpeer_hashidx];
1122 gseq->gpeer_list = NULL;
1125 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1130 kgnilnd_peer_seq_start(struct seq_file *s, loff_t *pos)
1133 kgn_peer_seq_iter_t *gseq;
1136 if (kgnilnd_data.kgn_init < GNILND_INIT_ALL) {
1140 LIBCFS_ALLOC(gseq, sizeof(*gseq));
1142 CERROR("could not allocate peer sequence iterator\n");
1146 /* only doing device 0 for now */
1147 gseq->gpeer_list = NULL;
1148 rc = kgnilnd_peer_seq_seek(gseq, *pos);
1152 LIBCFS_FREE(gseq, sizeof(*gseq));
1157 kgnilnd_peer_seq_stop(struct seq_file *s, void *iter)
1159 kgn_peer_seq_iter_t *gseq = iter;
1162 LIBCFS_FREE(gseq, sizeof(*gseq));
1166 kgnilnd_peer_seq_next(struct seq_file *s, void *iter, loff_t *pos)
1168 kgn_peer_seq_iter_t *gseq = iter;
1170 loff_t next = *pos + 1;
1172 rc = kgnilnd_peer_seq_seek(gseq, next);
1174 LIBCFS_FREE(gseq, sizeof(*gseq));
1182 kgnilnd_peer_seq_show(struct seq_file *s, void *iter)
1184 kgn_peer_seq_iter_t *gseq = iter;
1189 /* there is no header data for peers, so offset 0 is the first
1192 peer = gseq->gpeer_peer;
1193 LASSERT(peer != NULL);
1195 read_lock(&kgnilnd_data.kgn_peer_conn_lock);
1196 if (gseq->gpeer_list != NULL &&
1197 gseq->gpeer_version != kgnilnd_data.kgn_peer_version) {
1199 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1203 /* instead of saving off the data, just refcount */
1204 kgnilnd_peer_addref(peer);
1205 conn = kgnilnd_find_conn_locked(peer);
1207 if (peer->gnp_connecting) {
1209 } else if (conn != NULL) {
1215 list_for_each_entry(conn, &peer->gnp_conns, gnc_list) {
1216 if (conn->gnc_in_purgatory) {
1221 read_unlock(&kgnilnd_data.kgn_peer_conn_lock);
1223 seq_printf(s, "%p->%s [%d] %s NIC 0x%x q %d conn %c purg %d "
1224 "last %d@%dms dgram %d@%dms "
1225 "reconn %dms to %lus \n",
1226 peer, libcfs_nid2str(peer->gnp_nid),
1227 atomic_read(&peer->gnp_refcount),
1228 (peer->gnp_down == GNILND_RCA_NODE_DOWN) ? "down" : "up",
1230 kgnilnd_count_list(&peer->gnp_tx_queue),
1233 peer->gnp_last_errno,
1234 jiffies_to_msecs(jiffies - peer->gnp_last_alive),
1235 peer->gnp_last_dgram_errno,
1236 jiffies_to_msecs(jiffies - peer->gnp_last_dgram_time),
1237 peer->gnp_reconnect_interval != 0
1238 ? jiffies_to_msecs(jiffies - peer->gnp_reconnect_time)
1240 peer->gnp_reconnect_interval);
1242 kgnilnd_peer_decref(peer);
1247 static struct seq_operations kgn_peer_sops = {
1248 .start = kgnilnd_peer_seq_start,
1249 .stop = kgnilnd_peer_seq_stop,
1250 .next = kgnilnd_peer_seq_next,
1251 .show = kgnilnd_peer_seq_show,
1255 kgnilnd_peer_seq_open(struct inode *inode, struct file *file)
1257 struct proc_dir_entry *dp = PDE(inode);
1258 struct seq_file *sf;
1261 rc = seq_open(file, &kgn_peer_sops);
1263 sf = file->private_data;
1264 sf->private = dp->data;
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);