3 * Copyright(c) 2015, 2016 Intel Corporation.
5 * This file is provided under a dual BSD/GPLv2 license. When using or
6 * redistributing this file, you may do so under either license.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
21 * Redistribution and use in source and binary forms, with or without
22 * modification, are permitted provided that the following conditions
25 * - Redistributions of source code must retain the above copyright
26 * notice, this list of conditions and the following disclaimer.
27 * - Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in
29 * the documentation and/or other materials provided with the
31 * - Neither the name of Intel Corporation nor the names of its
32 * contributors may be used to endorse or promote products derived
33 * from this software without specific prior written permission.
35 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
48 #include <linux/debugfs.h>
49 #include <linux/seq_file.h>
50 #include <linux/kernel.h>
51 #include <linux/export.h>
52 #include <linux/module.h>
60 static struct dentry
*hfi1_dbg_root
;
62 /* wrappers to enforce srcu in seq file */
63 static ssize_t
hfi1_seq_read(
69 struct dentry
*d
= file
->f_path
.dentry
;
73 r
= debugfs_use_file_start(d
, &srcu_idx
);
75 r
= seq_read(file
, buf
, size
, ppos
);
76 debugfs_use_file_finish(srcu_idx
);
80 static loff_t
hfi1_seq_lseek(
85 struct dentry
*d
= file
->f_path
.dentry
;
89 r
= debugfs_use_file_start(d
, &srcu_idx
);
91 r
= seq_lseek(file
, offset
, whence
);
92 debugfs_use_file_finish(srcu_idx
);
96 #define private2dd(file) (file_inode(file)->i_private)
97 #define private2ppd(file) (file_inode(file)->i_private)
99 #define DEBUGFS_SEQ_FILE_OPS(name) \
100 static const struct seq_operations _##name##_seq_ops = { \
101 .start = _##name##_seq_start, \
102 .next = _##name##_seq_next, \
103 .stop = _##name##_seq_stop, \
104 .show = _##name##_seq_show \
107 #define DEBUGFS_SEQ_FILE_OPEN(name) \
108 static int _##name##_open(struct inode *inode, struct file *s) \
110 struct seq_file *seq; \
112 ret = seq_open(s, &_##name##_seq_ops); \
115 seq = s->private_data; \
116 seq->private = inode->i_private; \
120 #define DEBUGFS_FILE_OPS(name) \
121 static const struct file_operations _##name##_file_ops = { \
122 .owner = THIS_MODULE, \
123 .open = _##name##_open, \
124 .read = hfi1_seq_read, \
125 .llseek = hfi1_seq_lseek, \
126 .release = seq_release \
129 #define DEBUGFS_FILE_CREATE(name, parent, data, ops, mode) \
131 struct dentry *ent; \
132 ent = debugfs_create_file(name, mode, parent, \
135 pr_warn("create of %s failed\n", name); \
138 #define DEBUGFS_SEQ_FILE_CREATE(name, parent, data) \
139 DEBUGFS_FILE_CREATE(#name, parent, data, &_##name##_file_ops, S_IRUGO)
141 static void *_opcode_stats_seq_start(struct seq_file
*s
, loff_t
*pos
)
143 struct hfi1_opcode_stats_perctx
*opstats
;
145 if (*pos
>= ARRAY_SIZE(opstats
->stats
))
150 static void *_opcode_stats_seq_next(struct seq_file
*s
, void *v
, loff_t
*pos
)
152 struct hfi1_opcode_stats_perctx
*opstats
;
155 if (*pos
>= ARRAY_SIZE(opstats
->stats
))
160 static void _opcode_stats_seq_stop(struct seq_file
*s
, void *v
)
164 static int _opcode_stats_seq_show(struct seq_file
*s
, void *v
)
168 u64 n_packets
= 0, n_bytes
= 0;
169 struct hfi1_ibdev
*ibd
= (struct hfi1_ibdev
*)s
->private;
170 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
172 for (j
= 0; j
< dd
->first_user_ctxt
; j
++) {
175 n_packets
+= dd
->rcd
[j
]->opstats
->stats
[i
].n_packets
;
176 n_bytes
+= dd
->rcd
[j
]->opstats
->stats
[i
].n_bytes
;
178 if (!n_packets
&& !n_bytes
)
180 seq_printf(s
, "%02llx %llu/%llu\n", i
,
181 (unsigned long long)n_packets
,
182 (unsigned long long)n_bytes
);
187 DEBUGFS_SEQ_FILE_OPS(opcode_stats
);
188 DEBUGFS_SEQ_FILE_OPEN(opcode_stats
)
189 DEBUGFS_FILE_OPS(opcode_stats
);
191 static void *_ctx_stats_seq_start(struct seq_file
*s
, loff_t
*pos
)
193 struct hfi1_ibdev
*ibd
= (struct hfi1_ibdev
*)s
->private;
194 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
197 return SEQ_START_TOKEN
;
198 if (*pos
>= dd
->first_user_ctxt
)
203 static void *_ctx_stats_seq_next(struct seq_file
*s
, void *v
, loff_t
*pos
)
205 struct hfi1_ibdev
*ibd
= (struct hfi1_ibdev
*)s
->private;
206 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
208 if (v
== SEQ_START_TOKEN
)
212 if (*pos
>= dd
->first_user_ctxt
)
217 static void _ctx_stats_seq_stop(struct seq_file
*s
, void *v
)
219 /* nothing allocated */
222 static int _ctx_stats_seq_show(struct seq_file
*s
, void *v
)
227 struct hfi1_ibdev
*ibd
= (struct hfi1_ibdev
*)s
->private;
228 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
230 if (v
== SEQ_START_TOKEN
) {
231 seq_puts(s
, "Ctx:npkts\n");
241 for (j
= 0; j
< ARRAY_SIZE(dd
->rcd
[i
]->opstats
->stats
); j
++)
242 n_packets
+= dd
->rcd
[i
]->opstats
->stats
[j
].n_packets
;
247 seq_printf(s
, " %llu:%llu\n", i
, n_packets
);
251 DEBUGFS_SEQ_FILE_OPS(ctx_stats
);
252 DEBUGFS_SEQ_FILE_OPEN(ctx_stats
)
253 DEBUGFS_FILE_OPS(ctx_stats
);
255 static void *_qp_stats_seq_start(struct seq_file
*s
, loff_t
*pos
)
258 struct qp_iter
*iter
;
261 iter
= qp_iter_init(s
->private);
263 /* stop calls rcu_read_unlock */
270 if (qp_iter_next(iter
)) {
279 static void *_qp_stats_seq_next(struct seq_file
*s
, void *iter_ptr
,
283 struct qp_iter
*iter
= iter_ptr
;
287 if (qp_iter_next(iter
)) {
295 static void _qp_stats_seq_stop(struct seq_file
*s
, void *iter_ptr
)
301 static int _qp_stats_seq_show(struct seq_file
*s
, void *iter_ptr
)
303 struct qp_iter
*iter
= iter_ptr
;
308 qp_iter_print(s
, iter
);
313 DEBUGFS_SEQ_FILE_OPS(qp_stats
);
314 DEBUGFS_SEQ_FILE_OPEN(qp_stats
)
315 DEBUGFS_FILE_OPS(qp_stats
);
317 static void *_sdes_seq_start(struct seq_file
*s
, loff_t
*pos
)
319 struct hfi1_ibdev
*ibd
;
320 struct hfi1_devdata
*dd
;
322 ibd
= (struct hfi1_ibdev
*)s
->private;
323 dd
= dd_from_dev(ibd
);
324 if (!dd
->per_sdma
|| *pos
>= dd
->num_sdma
)
329 static void *_sdes_seq_next(struct seq_file
*s
, void *v
, loff_t
*pos
)
331 struct hfi1_ibdev
*ibd
= (struct hfi1_ibdev
*)s
->private;
332 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
335 if (!dd
->per_sdma
|| *pos
>= dd
->num_sdma
)
340 static void _sdes_seq_stop(struct seq_file
*s
, void *v
)
344 static int _sdes_seq_show(struct seq_file
*s
, void *v
)
346 struct hfi1_ibdev
*ibd
= (struct hfi1_ibdev
*)s
->private;
347 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
351 sdma_seqfile_dump_sde(s
, &dd
->per_sdma
[i
]);
355 DEBUGFS_SEQ_FILE_OPS(sdes
);
356 DEBUGFS_SEQ_FILE_OPEN(sdes
)
357 DEBUGFS_FILE_OPS(sdes
);
359 /* read the per-device counters */
360 static ssize_t
dev_counters_read(struct file
*file
, char __user
*buf
,
361 size_t count
, loff_t
*ppos
)
365 struct hfi1_devdata
*dd
;
368 dd
= private2dd(file
);
369 avail
= hfi1_read_cntrs(dd
, NULL
, &counters
);
370 rval
= simple_read_from_buffer(buf
, count
, ppos
, counters
, avail
);
374 /* read the per-device counters */
375 static ssize_t
dev_names_read(struct file
*file
, char __user
*buf
,
376 size_t count
, loff_t
*ppos
)
380 struct hfi1_devdata
*dd
;
383 dd
= private2dd(file
);
384 avail
= hfi1_read_cntrs(dd
, &names
, NULL
);
385 rval
= simple_read_from_buffer(buf
, count
, ppos
, names
, avail
);
389 struct counter_info
{
391 const struct file_operations ops
;
395 * Could use file_inode(file)->i_ino to figure out which file,
396 * instead of separate routine for each, but for now, this works...
399 /* read the per-port names (same for each port) */
400 static ssize_t
portnames_read(struct file
*file
, char __user
*buf
,
401 size_t count
, loff_t
*ppos
)
405 struct hfi1_devdata
*dd
;
408 dd
= private2dd(file
);
409 avail
= hfi1_read_portcntrs(dd
->pport
, &names
, NULL
);
410 rval
= simple_read_from_buffer(buf
, count
, ppos
, names
, avail
);
414 /* read the per-port counters */
415 static ssize_t
portcntrs_debugfs_read(struct file
*file
, char __user
*buf
,
416 size_t count
, loff_t
*ppos
)
420 struct hfi1_pportdata
*ppd
;
423 ppd
= private2ppd(file
);
424 avail
= hfi1_read_portcntrs(ppd
, NULL
, &counters
);
425 rval
= simple_read_from_buffer(buf
, count
, ppos
, counters
, avail
);
429 static void check_dyn_flag(u64 scratch0
, char *p
, int size
, int *used
,
430 int this_hfi
, int hfi
, u32 flag
, const char *what
)
434 mask
= flag
<< (hfi
? CR_DYN_SHIFT
: 0);
435 if (scratch0
& mask
) {
436 *used
+= scnprintf(p
+ *used
, size
- *used
,
437 " 0x%08x - HFI%d %s in use, %s device\n",
439 this_hfi
== hfi
? "this" : "other");
443 static ssize_t
asic_flags_read(struct file
*file
, char __user
*buf
,
444 size_t count
, loff_t
*ppos
)
446 struct hfi1_pportdata
*ppd
;
447 struct hfi1_devdata
*dd
;
455 ppd
= private2ppd(file
);
459 tmp
= kmalloc(size
, GFP_KERNEL
);
463 scratch0
= read_csr(dd
, ASIC_CFG_SCRATCH
);
464 used
+= scnprintf(tmp
+ used
, size
- used
,
465 "Resource flags: 0x%016llx\n", scratch0
);
467 /* check permanent flag */
468 if (scratch0
& CR_THERM_INIT
) {
469 used
+= scnprintf(tmp
+ used
, size
- used
,
470 " 0x%08x - thermal monitoring initialized\n",
474 /* check each dynamic flag on each HFI */
475 for (i
= 0; i
< 2; i
++) {
476 check_dyn_flag(scratch0
, tmp
, size
, &used
, dd
->hfi1_id
, i
,
478 check_dyn_flag(scratch0
, tmp
, size
, &used
, dd
->hfi1_id
, i
,
480 check_dyn_flag(scratch0
, tmp
, size
, &used
, dd
->hfi1_id
, i
,
481 CR_I2C1
, "i2c chain 1");
482 check_dyn_flag(scratch0
, tmp
, size
, &used
, dd
->hfi1_id
, i
,
483 CR_I2C2
, "i2c chain 2");
485 used
+= scnprintf(tmp
+ used
, size
- used
, "Write bits to clear\n");
487 ret
= simple_read_from_buffer(buf
, count
, ppos
, tmp
, used
);
492 static ssize_t
asic_flags_write(struct file
*file
, const char __user
*buf
,
493 size_t count
, loff_t
*ppos
)
495 struct hfi1_pportdata
*ppd
;
496 struct hfi1_devdata
*dd
;
499 unsigned long long value
;
503 ppd
= private2ppd(file
);
506 buff
= kmalloc(count
+ 1, GFP_KERNEL
);
510 ret
= copy_from_user(buff
, buf
, count
);
516 /* zero terminate and read the expected integer */
518 ret
= kstrtoull(buff
, 0, &value
);
523 /* obtain exclusive access */
524 mutex_lock(&dd
->asic_data
->asic_resource_mutex
);
525 acquire_hw_mutex(dd
);
527 scratch0
= read_csr(dd
, ASIC_CFG_SCRATCH
);
529 write_csr(dd
, ASIC_CFG_SCRATCH
, scratch0
);
530 /* force write to be visible to other HFI on another OS */
531 (void)read_csr(dd
, ASIC_CFG_SCRATCH
);
533 release_hw_mutex(dd
);
534 mutex_unlock(&dd
->asic_data
->asic_resource_mutex
);
536 /* return the number of bytes written */
545 * read the per-port QSFP data for ppd
547 static ssize_t
qsfp_debugfs_dump(struct file
*file
, char __user
*buf
,
548 size_t count
, loff_t
*ppos
)
550 struct hfi1_pportdata
*ppd
;
554 ppd
= private2ppd(file
);
555 tmp
= kmalloc(PAGE_SIZE
, GFP_KERNEL
);
559 ret
= qsfp_dump(ppd
, tmp
, PAGE_SIZE
);
561 ret
= simple_read_from_buffer(buf
, count
, ppos
, tmp
, ret
);
566 /* Do an i2c write operation on the chain for the given HFI. */
567 static ssize_t
__i2c_debugfs_write(struct file
*file
, const char __user
*buf
,
568 size_t count
, loff_t
*ppos
, u32 target
)
570 struct hfi1_pportdata
*ppd
;
577 ppd
= private2ppd(file
);
579 /* byte offset format: [offsetSize][i2cAddr][offsetHigh][offsetLow] */
580 i2c_addr
= (*ppos
>> 16) & 0xffff;
581 offset
= *ppos
& 0xffff;
583 /* explicitly reject invalid address 0 to catch cp and cat */
587 buff
= kmalloc(count
, GFP_KERNEL
);
591 ret
= copy_from_user(buff
, buf
, count
);
597 total_written
= i2c_write(ppd
, target
, i2c_addr
, offset
, buff
, count
);
598 if (total_written
< 0) {
603 *ppos
+= total_written
;
612 /* Do an i2c write operation on chain for HFI 0. */
613 static ssize_t
i2c1_debugfs_write(struct file
*file
, const char __user
*buf
,
614 size_t count
, loff_t
*ppos
)
616 return __i2c_debugfs_write(file
, buf
, count
, ppos
, 0);
619 /* Do an i2c write operation on chain for HFI 1. */
620 static ssize_t
i2c2_debugfs_write(struct file
*file
, const char __user
*buf
,
621 size_t count
, loff_t
*ppos
)
623 return __i2c_debugfs_write(file
, buf
, count
, ppos
, 1);
626 /* Do an i2c read operation on the chain for the given HFI. */
627 static ssize_t
__i2c_debugfs_read(struct file
*file
, char __user
*buf
,
628 size_t count
, loff_t
*ppos
, u32 target
)
630 struct hfi1_pportdata
*ppd
;
637 ppd
= private2ppd(file
);
639 /* byte offset format: [offsetSize][i2cAddr][offsetHigh][offsetLow] */
640 i2c_addr
= (*ppos
>> 16) & 0xffff;
641 offset
= *ppos
& 0xffff;
643 /* explicitly reject invalid address 0 to catch cp and cat */
647 buff
= kmalloc(count
, GFP_KERNEL
);
651 total_read
= i2c_read(ppd
, target
, i2c_addr
, offset
, buff
, count
);
652 if (total_read
< 0) {
659 ret
= copy_to_user(buf
, buff
, total_read
);
672 /* Do an i2c read operation on chain for HFI 0. */
673 static ssize_t
i2c1_debugfs_read(struct file
*file
, char __user
*buf
,
674 size_t count
, loff_t
*ppos
)
676 return __i2c_debugfs_read(file
, buf
, count
, ppos
, 0);
679 /* Do an i2c read operation on chain for HFI 1. */
680 static ssize_t
i2c2_debugfs_read(struct file
*file
, char __user
*buf
,
681 size_t count
, loff_t
*ppos
)
683 return __i2c_debugfs_read(file
, buf
, count
, ppos
, 1);
686 /* Do a QSFP write operation on the i2c chain for the given HFI. */
687 static ssize_t
__qsfp_debugfs_write(struct file
*file
, const char __user
*buf
,
688 size_t count
, loff_t
*ppos
, u32 target
)
690 struct hfi1_pportdata
*ppd
;
695 if (*ppos
+ count
> QSFP_PAGESIZE
* 4) /* base page + page00-page03 */
698 ppd
= private2ppd(file
);
700 buff
= kmalloc(count
, GFP_KERNEL
);
704 ret
= copy_from_user(buff
, buf
, count
);
709 total_written
= qsfp_write(ppd
, target
, *ppos
, buff
, count
);
710 if (total_written
< 0) {
715 *ppos
+= total_written
;
724 /* Do a QSFP write operation on i2c chain for HFI 0. */
725 static ssize_t
qsfp1_debugfs_write(struct file
*file
, const char __user
*buf
,
726 size_t count
, loff_t
*ppos
)
728 return __qsfp_debugfs_write(file
, buf
, count
, ppos
, 0);
731 /* Do a QSFP write operation on i2c chain for HFI 1. */
732 static ssize_t
qsfp2_debugfs_write(struct file
*file
, const char __user
*buf
,
733 size_t count
, loff_t
*ppos
)
735 return __qsfp_debugfs_write(file
, buf
, count
, ppos
, 1);
738 /* Do a QSFP read operation on the i2c chain for the given HFI. */
739 static ssize_t
__qsfp_debugfs_read(struct file
*file
, char __user
*buf
,
740 size_t count
, loff_t
*ppos
, u32 target
)
742 struct hfi1_pportdata
*ppd
;
747 if (*ppos
+ count
> QSFP_PAGESIZE
* 4) { /* base page + page00-page03 */
752 ppd
= private2ppd(file
);
754 buff
= kmalloc(count
, GFP_KERNEL
);
760 total_read
= qsfp_read(ppd
, target
, *ppos
, buff
, count
);
761 if (total_read
< 0) {
768 ret
= copy_to_user(buf
, buff
, total_read
);
782 /* Do a QSFP read operation on i2c chain for HFI 0. */
783 static ssize_t
qsfp1_debugfs_read(struct file
*file
, char __user
*buf
,
784 size_t count
, loff_t
*ppos
)
786 return __qsfp_debugfs_read(file
, buf
, count
, ppos
, 0);
789 /* Do a QSFP read operation on i2c chain for HFI 1. */
790 static ssize_t
qsfp2_debugfs_read(struct file
*file
, char __user
*buf
,
791 size_t count
, loff_t
*ppos
)
793 return __qsfp_debugfs_read(file
, buf
, count
, ppos
, 1);
796 static int __i2c_debugfs_open(struct inode
*in
, struct file
*fp
, u32 target
)
798 struct hfi1_pportdata
*ppd
;
801 if (!try_module_get(THIS_MODULE
))
804 ppd
= private2ppd(fp
);
806 ret
= acquire_chip_resource(ppd
->dd
, i2c_target(target
), 0);
807 if (ret
) /* failed - release the module */
808 module_put(THIS_MODULE
);
813 static int i2c1_debugfs_open(struct inode
*in
, struct file
*fp
)
815 return __i2c_debugfs_open(in
, fp
, 0);
818 static int i2c2_debugfs_open(struct inode
*in
, struct file
*fp
)
820 return __i2c_debugfs_open(in
, fp
, 1);
823 static int __i2c_debugfs_release(struct inode
*in
, struct file
*fp
, u32 target
)
825 struct hfi1_pportdata
*ppd
;
827 ppd
= private2ppd(fp
);
829 release_chip_resource(ppd
->dd
, i2c_target(target
));
830 module_put(THIS_MODULE
);
835 static int i2c1_debugfs_release(struct inode
*in
, struct file
*fp
)
837 return __i2c_debugfs_release(in
, fp
, 0);
840 static int i2c2_debugfs_release(struct inode
*in
, struct file
*fp
)
842 return __i2c_debugfs_release(in
, fp
, 1);
845 static int __qsfp_debugfs_open(struct inode
*in
, struct file
*fp
, u32 target
)
847 struct hfi1_pportdata
*ppd
;
850 if (!try_module_get(THIS_MODULE
))
853 ppd
= private2ppd(fp
);
855 ret
= acquire_chip_resource(ppd
->dd
, i2c_target(target
), 0);
856 if (ret
) /* failed - release the module */
857 module_put(THIS_MODULE
);
862 static int qsfp1_debugfs_open(struct inode
*in
, struct file
*fp
)
864 return __qsfp_debugfs_open(in
, fp
, 0);
867 static int qsfp2_debugfs_open(struct inode
*in
, struct file
*fp
)
869 return __qsfp_debugfs_open(in
, fp
, 1);
872 static int __qsfp_debugfs_release(struct inode
*in
, struct file
*fp
, u32 target
)
874 struct hfi1_pportdata
*ppd
;
876 ppd
= private2ppd(fp
);
878 release_chip_resource(ppd
->dd
, i2c_target(target
));
879 module_put(THIS_MODULE
);
884 static int qsfp1_debugfs_release(struct inode
*in
, struct file
*fp
)
886 return __qsfp_debugfs_release(in
, fp
, 0);
889 static int qsfp2_debugfs_release(struct inode
*in
, struct file
*fp
)
891 return __qsfp_debugfs_release(in
, fp
, 1);
894 #define DEBUGFS_OPS(nm, readroutine, writeroutine) \
898 .read = readroutine, \
899 .write = writeroutine, \
900 .llseek = generic_file_llseek, \
904 #define DEBUGFS_XOPS(nm, readf, writef, openf, releasef) \
910 .llseek = generic_file_llseek, \
912 .release = releasef \
916 static const struct counter_info cntr_ops
[] = {
917 DEBUGFS_OPS("counter_names", dev_names_read
, NULL
),
918 DEBUGFS_OPS("counters", dev_counters_read
, NULL
),
919 DEBUGFS_OPS("portcounter_names", portnames_read
, NULL
),
922 static const struct counter_info port_cntr_ops
[] = {
923 DEBUGFS_OPS("port%dcounters", portcntrs_debugfs_read
, NULL
),
924 DEBUGFS_XOPS("i2c1", i2c1_debugfs_read
, i2c1_debugfs_write
,
925 i2c1_debugfs_open
, i2c1_debugfs_release
),
926 DEBUGFS_XOPS("i2c2", i2c2_debugfs_read
, i2c2_debugfs_write
,
927 i2c2_debugfs_open
, i2c2_debugfs_release
),
928 DEBUGFS_OPS("qsfp_dump%d", qsfp_debugfs_dump
, NULL
),
929 DEBUGFS_XOPS("qsfp1", qsfp1_debugfs_read
, qsfp1_debugfs_write
,
930 qsfp1_debugfs_open
, qsfp1_debugfs_release
),
931 DEBUGFS_XOPS("qsfp2", qsfp2_debugfs_read
, qsfp2_debugfs_write
,
932 qsfp2_debugfs_open
, qsfp2_debugfs_release
),
933 DEBUGFS_OPS("asic_flags", asic_flags_read
, asic_flags_write
),
936 void hfi1_dbg_ibdev_init(struct hfi1_ibdev
*ibd
)
938 char name
[sizeof("port0counters") + 1];
940 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
941 struct hfi1_pportdata
*ppd
;
947 snprintf(name
, sizeof(name
), "%s_%d", class_name(), unit
);
948 snprintf(link
, sizeof(link
), "%d", unit
);
949 ibd
->hfi1_ibdev_dbg
= debugfs_create_dir(name
, hfi1_dbg_root
);
950 if (!ibd
->hfi1_ibdev_dbg
) {
951 pr_warn("create of %s failed\n", name
);
954 ibd
->hfi1_ibdev_link
=
955 debugfs_create_symlink(link
, hfi1_dbg_root
, name
);
956 if (!ibd
->hfi1_ibdev_link
) {
957 pr_warn("create of %s symlink failed\n", name
);
960 DEBUGFS_SEQ_FILE_CREATE(opcode_stats
, ibd
->hfi1_ibdev_dbg
, ibd
);
961 DEBUGFS_SEQ_FILE_CREATE(ctx_stats
, ibd
->hfi1_ibdev_dbg
, ibd
);
962 DEBUGFS_SEQ_FILE_CREATE(qp_stats
, ibd
->hfi1_ibdev_dbg
, ibd
);
963 DEBUGFS_SEQ_FILE_CREATE(sdes
, ibd
->hfi1_ibdev_dbg
, ibd
);
964 /* dev counter files */
965 for (i
= 0; i
< ARRAY_SIZE(cntr_ops
); i
++)
966 DEBUGFS_FILE_CREATE(cntr_ops
[i
].name
,
969 &cntr_ops
[i
].ops
, S_IRUGO
);
971 for (ppd
= dd
->pport
, j
= 0; j
< dd
->num_pports
; j
++, ppd
++)
972 for (i
= 0; i
< ARRAY_SIZE(port_cntr_ops
); i
++) {
975 port_cntr_ops
[i
].name
,
977 DEBUGFS_FILE_CREATE(name
,
980 &port_cntr_ops
[i
].ops
,
981 !port_cntr_ops
[i
].ops
.write
?
982 S_IRUGO
: S_IRUGO
| S_IWUSR
);
986 void hfi1_dbg_ibdev_exit(struct hfi1_ibdev
*ibd
)
990 debugfs_remove(ibd
->hfi1_ibdev_link
);
991 debugfs_remove_recursive(ibd
->hfi1_ibdev_dbg
);
993 ibd
->hfi1_ibdev_dbg
= NULL
;
997 * driver stats field names, one line per stat, single string. Used by
998 * programs like hfistats to print the stats in a way which works for
999 * different versions of drivers, without changing program source.
1000 * if hfi1_ib_stats changes, this needs to change. Names need to be
1001 * 12 chars or less (w/o newline), for proper display by hfistats utility.
1003 static const char * const hfi1_statnames
[] = {
1004 /* must be element 0*/
1017 static void *_driver_stats_names_seq_start(struct seq_file
*s
, loff_t
*pos
)
1019 if (*pos
>= ARRAY_SIZE(hfi1_statnames
))
1024 static void *_driver_stats_names_seq_next(
1030 if (*pos
>= ARRAY_SIZE(hfi1_statnames
))
1035 static void _driver_stats_names_seq_stop(struct seq_file
*s
, void *v
)
1039 static int _driver_stats_names_seq_show(struct seq_file
*s
, void *v
)
1043 seq_printf(s
, "%s\n", hfi1_statnames
[*spos
]);
1047 DEBUGFS_SEQ_FILE_OPS(driver_stats_names
);
1048 DEBUGFS_SEQ_FILE_OPEN(driver_stats_names
)
1049 DEBUGFS_FILE_OPS(driver_stats_names
);
1051 static void *_driver_stats_seq_start(struct seq_file
*s
, loff_t
*pos
)
1053 if (*pos
>= ARRAY_SIZE(hfi1_statnames
))
1058 static void *_driver_stats_seq_next(struct seq_file
*s
, void *v
, loff_t
*pos
)
1061 if (*pos
>= ARRAY_SIZE(hfi1_statnames
))
1066 static void _driver_stats_seq_stop(struct seq_file
*s
, void *v
)
1070 static u64
hfi1_sps_ints(void)
1072 unsigned long flags
;
1073 struct hfi1_devdata
*dd
;
1076 spin_lock_irqsave(&hfi1_devs_lock
, flags
);
1077 list_for_each_entry(dd
, &hfi1_dev_list
, list
) {
1078 sps_ints
+= get_all_cpu_total(dd
->int_counter
);
1080 spin_unlock_irqrestore(&hfi1_devs_lock
, flags
);
1084 static int _driver_stats_seq_show(struct seq_file
*s
, void *v
)
1088 u64
*stats
= (u64
*)&hfi1_stats
;
1089 size_t sz
= seq_get_buf(s
, &buffer
);
1091 if (sz
< sizeof(u64
))
1093 /* special case for interrupts */
1095 *(u64
*)buffer
= hfi1_sps_ints();
1097 *(u64
*)buffer
= stats
[*spos
];
1098 seq_commit(s
, sizeof(u64
));
1102 DEBUGFS_SEQ_FILE_OPS(driver_stats
);
1103 DEBUGFS_SEQ_FILE_OPEN(driver_stats
)
1104 DEBUGFS_FILE_OPS(driver_stats
);
1106 void hfi1_dbg_init(void)
1108 hfi1_dbg_root
= debugfs_create_dir(DRIVER_NAME
, NULL
);
1110 pr_warn("init of debugfs failed\n");
1111 DEBUGFS_SEQ_FILE_CREATE(driver_stats_names
, hfi1_dbg_root
, NULL
);
1112 DEBUGFS_SEQ_FILE_CREATE(driver_stats
, hfi1_dbg_root
, NULL
);
1115 void hfi1_dbg_exit(void)
1117 debugfs_remove_recursive(hfi1_dbg_root
);
1118 hfi1_dbg_root
= NULL
;