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 #define private2dd(file) (file_inode(file)->i_private)
63 #define private2ppd(file) (file_inode(file)->i_private)
65 #define DEBUGFS_SEQ_FILE_OPS(name) \
66 static const struct seq_operations _##name##_seq_ops = { \
67 .start = _##name##_seq_start, \
68 .next = _##name##_seq_next, \
69 .stop = _##name##_seq_stop, \
70 .show = _##name##_seq_show \
73 #define DEBUGFS_SEQ_FILE_OPEN(name) \
74 static int _##name##_open(struct inode *inode, struct file *s) \
76 struct seq_file *seq; \
78 ret = seq_open(s, &_##name##_seq_ops); \
81 seq = s->private_data; \
82 seq->private = inode->i_private; \
86 #define DEBUGFS_FILE_OPS(name) \
87 static const struct file_operations _##name##_file_ops = { \
88 .owner = THIS_MODULE, \
89 .open = _##name##_open, \
91 .llseek = seq_lseek, \
92 .release = seq_release \
95 #define DEBUGFS_FILE_CREATE(name, parent, data, ops, mode) \
98 ent = debugfs_create_file(name, mode, parent, \
101 pr_warn("create of %s failed\n", name); \
104 #define DEBUGFS_SEQ_FILE_CREATE(name, parent, data) \
105 DEBUGFS_FILE_CREATE(#name, parent, data, &_##name##_file_ops, S_IRUGO)
107 static void *_opcode_stats_seq_start(struct seq_file
*s
, loff_t
*pos
)
110 struct hfi1_opcode_stats_perctx
*opstats
;
113 if (*pos
>= ARRAY_SIZE(opstats
->stats
))
118 static void *_opcode_stats_seq_next(struct seq_file
*s
, void *v
, loff_t
*pos
)
120 struct hfi1_opcode_stats_perctx
*opstats
;
123 if (*pos
>= ARRAY_SIZE(opstats
->stats
))
128 static void _opcode_stats_seq_stop(struct seq_file
*s
, void *v
)
134 static int _opcode_stats_seq_show(struct seq_file
*s
, void *v
)
138 u64 n_packets
= 0, n_bytes
= 0;
139 struct hfi1_ibdev
*ibd
= (struct hfi1_ibdev
*)s
->private;
140 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
142 for (j
= 0; j
< dd
->first_user_ctxt
; j
++) {
145 n_packets
+= dd
->rcd
[j
]->opstats
->stats
[i
].n_packets
;
146 n_bytes
+= dd
->rcd
[j
]->opstats
->stats
[i
].n_bytes
;
148 if (!n_packets
&& !n_bytes
)
150 seq_printf(s
, "%02llx %llu/%llu\n", i
,
151 (unsigned long long)n_packets
,
152 (unsigned long long)n_bytes
);
157 DEBUGFS_SEQ_FILE_OPS(opcode_stats
);
158 DEBUGFS_SEQ_FILE_OPEN(opcode_stats
)
159 DEBUGFS_FILE_OPS(opcode_stats
);
161 static void *_ctx_stats_seq_start(struct seq_file
*s
, loff_t
*pos
)
163 struct hfi1_ibdev
*ibd
= (struct hfi1_ibdev
*)s
->private;
164 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
167 return SEQ_START_TOKEN
;
168 if (*pos
>= dd
->first_user_ctxt
)
173 static void *_ctx_stats_seq_next(struct seq_file
*s
, void *v
, loff_t
*pos
)
175 struct hfi1_ibdev
*ibd
= (struct hfi1_ibdev
*)s
->private;
176 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
178 if (v
== SEQ_START_TOKEN
)
182 if (*pos
>= dd
->first_user_ctxt
)
187 static void _ctx_stats_seq_stop(struct seq_file
*s
, void *v
)
189 /* nothing allocated */
192 static int _ctx_stats_seq_show(struct seq_file
*s
, void *v
)
197 struct hfi1_ibdev
*ibd
= (struct hfi1_ibdev
*)s
->private;
198 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
200 if (v
== SEQ_START_TOKEN
) {
201 seq_puts(s
, "Ctx:npkts\n");
211 for (j
= 0; j
< ARRAY_SIZE(dd
->rcd
[i
]->opstats
->stats
); j
++)
212 n_packets
+= dd
->rcd
[i
]->opstats
->stats
[j
].n_packets
;
217 seq_printf(s
, " %llu:%llu\n", i
, n_packets
);
221 DEBUGFS_SEQ_FILE_OPS(ctx_stats
);
222 DEBUGFS_SEQ_FILE_OPEN(ctx_stats
)
223 DEBUGFS_FILE_OPS(ctx_stats
);
225 static void *_qp_stats_seq_start(struct seq_file
*s
, loff_t
*pos
)
228 struct qp_iter
*iter
;
232 iter
= qp_iter_init(s
->private);
237 if (qp_iter_next(iter
)) {
246 static void *_qp_stats_seq_next(struct seq_file
*s
, void *iter_ptr
,
249 struct qp_iter
*iter
= iter_ptr
;
253 if (qp_iter_next(iter
)) {
261 static void _qp_stats_seq_stop(struct seq_file
*s
, void *iter_ptr
)
267 static int _qp_stats_seq_show(struct seq_file
*s
, void *iter_ptr
)
269 struct qp_iter
*iter
= iter_ptr
;
274 qp_iter_print(s
, iter
);
279 DEBUGFS_SEQ_FILE_OPS(qp_stats
);
280 DEBUGFS_SEQ_FILE_OPEN(qp_stats
)
281 DEBUGFS_FILE_OPS(qp_stats
);
283 static void *_sdes_seq_start(struct seq_file
*s
, loff_t
*pos
)
286 struct hfi1_ibdev
*ibd
;
287 struct hfi1_devdata
*dd
;
290 ibd
= (struct hfi1_ibdev
*)s
->private;
291 dd
= dd_from_dev(ibd
);
292 if (!dd
->per_sdma
|| *pos
>= dd
->num_sdma
)
297 static void *_sdes_seq_next(struct seq_file
*s
, void *v
, loff_t
*pos
)
299 struct hfi1_ibdev
*ibd
= (struct hfi1_ibdev
*)s
->private;
300 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
303 if (!dd
->per_sdma
|| *pos
>= dd
->num_sdma
)
308 static void _sdes_seq_stop(struct seq_file
*s
, void *v
)
314 static int _sdes_seq_show(struct seq_file
*s
, void *v
)
316 struct hfi1_ibdev
*ibd
= (struct hfi1_ibdev
*)s
->private;
317 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
321 sdma_seqfile_dump_sde(s
, &dd
->per_sdma
[i
]);
325 DEBUGFS_SEQ_FILE_OPS(sdes
);
326 DEBUGFS_SEQ_FILE_OPEN(sdes
)
327 DEBUGFS_FILE_OPS(sdes
);
329 /* read the per-device counters */
330 static ssize_t
dev_counters_read(struct file
*file
, char __user
*buf
,
331 size_t count
, loff_t
*ppos
)
335 struct hfi1_devdata
*dd
;
339 dd
= private2dd(file
);
340 avail
= hfi1_read_cntrs(dd
, NULL
, &counters
);
341 rval
= simple_read_from_buffer(buf
, count
, ppos
, counters
, avail
);
346 /* read the per-device counters */
347 static ssize_t
dev_names_read(struct file
*file
, char __user
*buf
,
348 size_t count
, loff_t
*ppos
)
352 struct hfi1_devdata
*dd
;
356 dd
= private2dd(file
);
357 avail
= hfi1_read_cntrs(dd
, &names
, NULL
);
358 rval
= simple_read_from_buffer(buf
, count
, ppos
, names
, avail
);
363 struct counter_info
{
365 const struct file_operations ops
;
369 * Could use file_inode(file)->i_ino to figure out which file,
370 * instead of separate routine for each, but for now, this works...
373 /* read the per-port names (same for each port) */
374 static ssize_t
portnames_read(struct file
*file
, char __user
*buf
,
375 size_t count
, loff_t
*ppos
)
379 struct hfi1_devdata
*dd
;
383 dd
= private2dd(file
);
384 avail
= hfi1_read_portcntrs(dd
->pport
, &names
, NULL
);
385 rval
= simple_read_from_buffer(buf
, count
, ppos
, names
, avail
);
390 /* read the per-port counters */
391 static ssize_t
portcntrs_debugfs_read(struct file
*file
, char __user
*buf
,
392 size_t count
, loff_t
*ppos
)
396 struct hfi1_pportdata
*ppd
;
400 ppd
= private2ppd(file
);
401 avail
= hfi1_read_portcntrs(ppd
, NULL
, &counters
);
402 rval
= simple_read_from_buffer(buf
, count
, ppos
, counters
, avail
);
407 static void check_dyn_flag(u64 scratch0
, char *p
, int size
, int *used
,
408 int this_hfi
, int hfi
, u32 flag
, const char *what
)
412 mask
= flag
<< (hfi
? CR_DYN_SHIFT
: 0);
413 if (scratch0
& mask
) {
414 *used
+= scnprintf(p
+ *used
, size
- *used
,
415 " 0x%08x - HFI%d %s in use, %s device\n",
417 this_hfi
== hfi
? "this" : "other");
421 static ssize_t
asic_flags_read(struct file
*file
, char __user
*buf
,
422 size_t count
, loff_t
*ppos
)
424 struct hfi1_pportdata
*ppd
;
425 struct hfi1_devdata
*dd
;
434 ppd
= private2ppd(file
);
438 tmp
= kmalloc(size
, GFP_KERNEL
);
444 scratch0
= read_csr(dd
, ASIC_CFG_SCRATCH
);
445 used
+= scnprintf(tmp
+ used
, size
- used
,
446 "Resource flags: 0x%016llx\n", scratch0
);
448 /* check permanent flag */
449 if (scratch0
& CR_THERM_INIT
) {
450 used
+= scnprintf(tmp
+ used
, size
- used
,
451 " 0x%08x - thermal monitoring initialized\n",
455 /* check each dynamic flag on each HFI */
456 for (i
= 0; i
< 2; i
++) {
457 check_dyn_flag(scratch0
, tmp
, size
, &used
, dd
->hfi1_id
, i
,
459 check_dyn_flag(scratch0
, tmp
, size
, &used
, dd
->hfi1_id
, i
,
461 check_dyn_flag(scratch0
, tmp
, size
, &used
, dd
->hfi1_id
, i
,
462 CR_I2C1
, "i2c chain 1");
463 check_dyn_flag(scratch0
, tmp
, size
, &used
, dd
->hfi1_id
, i
,
464 CR_I2C2
, "i2c chain 2");
466 used
+= scnprintf(tmp
+ used
, size
- used
, "Write bits to clear\n");
468 ret
= simple_read_from_buffer(buf
, count
, ppos
, tmp
, used
);
474 static ssize_t
asic_flags_write(struct file
*file
, const char __user
*buf
,
475 size_t count
, loff_t
*ppos
)
477 struct hfi1_pportdata
*ppd
;
478 struct hfi1_devdata
*dd
;
481 unsigned long long value
;
486 ppd
= private2ppd(file
);
489 buff
= kmalloc(count
+ 1, GFP_KERNEL
);
495 ret
= copy_from_user(buff
, buf
, count
);
501 /* zero terminate and read the expected integer */
503 ret
= kstrtoull(buff
, 0, &value
);
508 /* obtain exclusive access */
509 mutex_lock(&dd
->asic_data
->asic_resource_mutex
);
510 acquire_hw_mutex(dd
);
512 scratch0
= read_csr(dd
, ASIC_CFG_SCRATCH
);
514 write_csr(dd
, ASIC_CFG_SCRATCH
, scratch0
);
515 /* force write to be visible to other HFI on another OS */
516 (void)read_csr(dd
, ASIC_CFG_SCRATCH
);
518 release_hw_mutex(dd
);
519 mutex_unlock(&dd
->asic_data
->asic_resource_mutex
);
521 /* return the number of bytes written */
532 * read the per-port QSFP data for ppd
534 static ssize_t
qsfp_debugfs_dump(struct file
*file
, char __user
*buf
,
535 size_t count
, loff_t
*ppos
)
537 struct hfi1_pportdata
*ppd
;
542 ppd
= private2ppd(file
);
543 tmp
= kmalloc(PAGE_SIZE
, GFP_KERNEL
);
549 ret
= qsfp_dump(ppd
, tmp
, PAGE_SIZE
);
551 ret
= simple_read_from_buffer(buf
, count
, ppos
, tmp
, ret
);
557 /* Do an i2c write operation on the chain for the given HFI. */
558 static ssize_t
__i2c_debugfs_write(struct file
*file
, const char __user
*buf
,
559 size_t count
, loff_t
*ppos
, u32 target
)
561 struct hfi1_pportdata
*ppd
;
569 ppd
= private2ppd(file
);
571 /* byte offset format: [offsetSize][i2cAddr][offsetHigh][offsetLow] */
572 i2c_addr
= (*ppos
>> 16) & 0xffff;
573 offset
= *ppos
& 0xffff;
575 /* explicitly reject invalid address 0 to catch cp and cat */
581 buff
= kmalloc(count
, GFP_KERNEL
);
587 ret
= copy_from_user(buff
, buf
, count
);
593 total_written
= i2c_write(ppd
, target
, i2c_addr
, offset
, buff
, count
);
594 if (total_written
< 0) {
599 *ppos
+= total_written
;
610 /* Do an i2c write operation on chain for HFI 0. */
611 static ssize_t
i2c1_debugfs_write(struct file
*file
, const char __user
*buf
,
612 size_t count
, loff_t
*ppos
)
614 return __i2c_debugfs_write(file
, buf
, count
, ppos
, 0);
617 /* Do an i2c write operation on chain for HFI 1. */
618 static ssize_t
i2c2_debugfs_write(struct file
*file
, const char __user
*buf
,
619 size_t count
, loff_t
*ppos
)
621 return __i2c_debugfs_write(file
, buf
, count
, ppos
, 1);
624 /* Do an i2c read operation on the chain for the given HFI. */
625 static ssize_t
__i2c_debugfs_read(struct file
*file
, char __user
*buf
,
626 size_t count
, loff_t
*ppos
, u32 target
)
628 struct hfi1_pportdata
*ppd
;
636 ppd
= private2ppd(file
);
638 /* byte offset format: [offsetSize][i2cAddr][offsetHigh][offsetLow] */
639 i2c_addr
= (*ppos
>> 16) & 0xffff;
640 offset
= *ppos
& 0xffff;
642 /* explicitly reject invalid address 0 to catch cp and cat */
648 buff
= kmalloc(count
, GFP_KERNEL
);
654 total_read
= i2c_read(ppd
, target
, i2c_addr
, offset
, buff
, count
);
655 if (total_read
< 0) {
662 ret
= copy_to_user(buf
, buff
, total_read
);
677 /* Do an i2c read operation on chain for HFI 0. */
678 static ssize_t
i2c1_debugfs_read(struct file
*file
, char __user
*buf
,
679 size_t count
, loff_t
*ppos
)
681 return __i2c_debugfs_read(file
, buf
, count
, ppos
, 0);
684 /* Do an i2c read operation on chain for HFI 1. */
685 static ssize_t
i2c2_debugfs_read(struct file
*file
, char __user
*buf
,
686 size_t count
, loff_t
*ppos
)
688 return __i2c_debugfs_read(file
, buf
, count
, ppos
, 1);
691 /* Do a QSFP write operation on the i2c chain for the given HFI. */
692 static ssize_t
__qsfp_debugfs_write(struct file
*file
, const char __user
*buf
,
693 size_t count
, loff_t
*ppos
, u32 target
)
695 struct hfi1_pportdata
*ppd
;
701 if (*ppos
+ count
> QSFP_PAGESIZE
* 4) { /* base page + page00-page03 */
706 ppd
= private2ppd(file
);
708 buff
= kmalloc(count
, GFP_KERNEL
);
714 ret
= copy_from_user(buff
, buf
, count
);
720 total_written
= qsfp_write(ppd
, target
, *ppos
, buff
, count
);
721 if (total_written
< 0) {
726 *ppos
+= total_written
;
737 /* Do a QSFP write operation on i2c chain for HFI 0. */
738 static ssize_t
qsfp1_debugfs_write(struct file
*file
, const char __user
*buf
,
739 size_t count
, loff_t
*ppos
)
741 return __qsfp_debugfs_write(file
, buf
, count
, ppos
, 0);
744 /* Do a QSFP write operation on i2c chain for HFI 1. */
745 static ssize_t
qsfp2_debugfs_write(struct file
*file
, const char __user
*buf
,
746 size_t count
, loff_t
*ppos
)
748 return __qsfp_debugfs_write(file
, buf
, count
, ppos
, 1);
751 /* Do a QSFP read operation on the i2c chain for the given HFI. */
752 static ssize_t
__qsfp_debugfs_read(struct file
*file
, char __user
*buf
,
753 size_t count
, loff_t
*ppos
, u32 target
)
755 struct hfi1_pportdata
*ppd
;
761 if (*ppos
+ count
> QSFP_PAGESIZE
* 4) { /* base page + page00-page03 */
766 ppd
= private2ppd(file
);
768 buff
= kmalloc(count
, GFP_KERNEL
);
774 total_read
= qsfp_read(ppd
, target
, *ppos
, buff
, count
);
775 if (total_read
< 0) {
782 ret
= copy_to_user(buf
, buff
, total_read
);
797 /* Do a QSFP read operation on i2c chain for HFI 0. */
798 static ssize_t
qsfp1_debugfs_read(struct file
*file
, char __user
*buf
,
799 size_t count
, loff_t
*ppos
)
801 return __qsfp_debugfs_read(file
, buf
, count
, ppos
, 0);
804 /* Do a QSFP read operation on i2c chain for HFI 1. */
805 static ssize_t
qsfp2_debugfs_read(struct file
*file
, char __user
*buf
,
806 size_t count
, loff_t
*ppos
)
808 return __qsfp_debugfs_read(file
, buf
, count
, ppos
, 1);
811 static int __i2c_debugfs_open(struct inode
*in
, struct file
*fp
, u32 target
)
813 struct hfi1_pportdata
*ppd
;
816 if (!try_module_get(THIS_MODULE
))
819 ppd
= private2ppd(fp
);
821 ret
= acquire_chip_resource(ppd
->dd
, i2c_target(target
), 0);
822 if (ret
) /* failed - release the module */
823 module_put(THIS_MODULE
);
828 static int i2c1_debugfs_open(struct inode
*in
, struct file
*fp
)
830 return __i2c_debugfs_open(in
, fp
, 0);
833 static int i2c2_debugfs_open(struct inode
*in
, struct file
*fp
)
835 return __i2c_debugfs_open(in
, fp
, 1);
838 static int __i2c_debugfs_release(struct inode
*in
, struct file
*fp
, u32 target
)
840 struct hfi1_pportdata
*ppd
;
842 ppd
= private2ppd(fp
);
844 release_chip_resource(ppd
->dd
, i2c_target(target
));
845 module_put(THIS_MODULE
);
850 static int i2c1_debugfs_release(struct inode
*in
, struct file
*fp
)
852 return __i2c_debugfs_release(in
, fp
, 0);
855 static int i2c2_debugfs_release(struct inode
*in
, struct file
*fp
)
857 return __i2c_debugfs_release(in
, fp
, 1);
860 static int __qsfp_debugfs_open(struct inode
*in
, struct file
*fp
, u32 target
)
862 struct hfi1_pportdata
*ppd
;
865 if (!try_module_get(THIS_MODULE
))
868 ppd
= private2ppd(fp
);
870 ret
= acquire_chip_resource(ppd
->dd
, i2c_target(target
), 0);
871 if (ret
) /* failed - release the module */
872 module_put(THIS_MODULE
);
877 static int qsfp1_debugfs_open(struct inode
*in
, struct file
*fp
)
879 return __qsfp_debugfs_open(in
, fp
, 0);
882 static int qsfp2_debugfs_open(struct inode
*in
, struct file
*fp
)
884 return __qsfp_debugfs_open(in
, fp
, 1);
887 static int __qsfp_debugfs_release(struct inode
*in
, struct file
*fp
, u32 target
)
889 struct hfi1_pportdata
*ppd
;
891 ppd
= private2ppd(fp
);
893 release_chip_resource(ppd
->dd
, i2c_target(target
));
894 module_put(THIS_MODULE
);
899 static int qsfp1_debugfs_release(struct inode
*in
, struct file
*fp
)
901 return __qsfp_debugfs_release(in
, fp
, 0);
904 static int qsfp2_debugfs_release(struct inode
*in
, struct file
*fp
)
906 return __qsfp_debugfs_release(in
, fp
, 1);
909 #define DEBUGFS_OPS(nm, readroutine, writeroutine) \
913 .read = readroutine, \
914 .write = writeroutine, \
915 .llseek = generic_file_llseek, \
919 #define DEBUGFS_XOPS(nm, readf, writef, openf, releasef) \
925 .llseek = generic_file_llseek, \
927 .release = releasef \
931 static const struct counter_info cntr_ops
[] = {
932 DEBUGFS_OPS("counter_names", dev_names_read
, NULL
),
933 DEBUGFS_OPS("counters", dev_counters_read
, NULL
),
934 DEBUGFS_OPS("portcounter_names", portnames_read
, NULL
),
937 static const struct counter_info port_cntr_ops
[] = {
938 DEBUGFS_OPS("port%dcounters", portcntrs_debugfs_read
, NULL
),
939 DEBUGFS_XOPS("i2c1", i2c1_debugfs_read
, i2c1_debugfs_write
,
940 i2c1_debugfs_open
, i2c1_debugfs_release
),
941 DEBUGFS_XOPS("i2c2", i2c2_debugfs_read
, i2c2_debugfs_write
,
942 i2c2_debugfs_open
, i2c2_debugfs_release
),
943 DEBUGFS_OPS("qsfp_dump%d", qsfp_debugfs_dump
, NULL
),
944 DEBUGFS_XOPS("qsfp1", qsfp1_debugfs_read
, qsfp1_debugfs_write
,
945 qsfp1_debugfs_open
, qsfp1_debugfs_release
),
946 DEBUGFS_XOPS("qsfp2", qsfp2_debugfs_read
, qsfp2_debugfs_write
,
947 qsfp2_debugfs_open
, qsfp2_debugfs_release
),
948 DEBUGFS_OPS("asic_flags", asic_flags_read
, asic_flags_write
),
951 void hfi1_dbg_ibdev_init(struct hfi1_ibdev
*ibd
)
953 char name
[sizeof("port0counters") + 1];
955 struct hfi1_devdata
*dd
= dd_from_dev(ibd
);
956 struct hfi1_pportdata
*ppd
;
962 snprintf(name
, sizeof(name
), "%s_%d", class_name(), unit
);
963 snprintf(link
, sizeof(link
), "%d", unit
);
964 ibd
->hfi1_ibdev_dbg
= debugfs_create_dir(name
, hfi1_dbg_root
);
965 if (!ibd
->hfi1_ibdev_dbg
) {
966 pr_warn("create of %s failed\n", name
);
969 ibd
->hfi1_ibdev_link
=
970 debugfs_create_symlink(link
, hfi1_dbg_root
, name
);
971 if (!ibd
->hfi1_ibdev_link
) {
972 pr_warn("create of %s symlink failed\n", name
);
975 DEBUGFS_SEQ_FILE_CREATE(opcode_stats
, ibd
->hfi1_ibdev_dbg
, ibd
);
976 DEBUGFS_SEQ_FILE_CREATE(ctx_stats
, ibd
->hfi1_ibdev_dbg
, ibd
);
977 DEBUGFS_SEQ_FILE_CREATE(qp_stats
, ibd
->hfi1_ibdev_dbg
, ibd
);
978 DEBUGFS_SEQ_FILE_CREATE(sdes
, ibd
->hfi1_ibdev_dbg
, ibd
);
979 /* dev counter files */
980 for (i
= 0; i
< ARRAY_SIZE(cntr_ops
); i
++)
981 DEBUGFS_FILE_CREATE(cntr_ops
[i
].name
,
984 &cntr_ops
[i
].ops
, S_IRUGO
);
986 for (ppd
= dd
->pport
, j
= 0; j
< dd
->num_pports
; j
++, ppd
++)
987 for (i
= 0; i
< ARRAY_SIZE(port_cntr_ops
); i
++) {
990 port_cntr_ops
[i
].name
,
992 DEBUGFS_FILE_CREATE(name
,
995 &port_cntr_ops
[i
].ops
,
996 !port_cntr_ops
[i
].ops
.write
?
997 S_IRUGO
: S_IRUGO
| S_IWUSR
);
1001 void hfi1_dbg_ibdev_exit(struct hfi1_ibdev
*ibd
)
1005 debugfs_remove(ibd
->hfi1_ibdev_link
);
1006 debugfs_remove_recursive(ibd
->hfi1_ibdev_dbg
);
1008 ibd
->hfi1_ibdev_dbg
= NULL
;
1013 * driver stats field names, one line per stat, single string. Used by
1014 * programs like hfistats to print the stats in a way which works for
1015 * different versions of drivers, without changing program source.
1016 * if hfi1_ib_stats changes, this needs to change. Names need to be
1017 * 12 chars or less (w/o newline), for proper display by hfistats utility.
1019 static const char * const hfi1_statnames
[] = {
1020 /* must be element 0*/
1033 static void *_driver_stats_names_seq_start(struct seq_file
*s
, loff_t
*pos
)
1037 if (*pos
>= ARRAY_SIZE(hfi1_statnames
))
1042 static void *_driver_stats_names_seq_next(
1048 if (*pos
>= ARRAY_SIZE(hfi1_statnames
))
1053 static void _driver_stats_names_seq_stop(struct seq_file
*s
, void *v
)
1059 static int _driver_stats_names_seq_show(struct seq_file
*s
, void *v
)
1063 seq_printf(s
, "%s\n", hfi1_statnames
[*spos
]);
1067 DEBUGFS_SEQ_FILE_OPS(driver_stats_names
);
1068 DEBUGFS_SEQ_FILE_OPEN(driver_stats_names
)
1069 DEBUGFS_FILE_OPS(driver_stats_names
);
1071 static void *_driver_stats_seq_start(struct seq_file
*s
, loff_t
*pos
)
1075 if (*pos
>= ARRAY_SIZE(hfi1_statnames
))
1080 static void *_driver_stats_seq_next(struct seq_file
*s
, void *v
, loff_t
*pos
)
1083 if (*pos
>= ARRAY_SIZE(hfi1_statnames
))
1088 static void _driver_stats_seq_stop(struct seq_file
*s
, void *v
)
1094 static u64
hfi1_sps_ints(void)
1096 unsigned long flags
;
1097 struct hfi1_devdata
*dd
;
1100 spin_lock_irqsave(&hfi1_devs_lock
, flags
);
1101 list_for_each_entry(dd
, &hfi1_dev_list
, list
) {
1102 sps_ints
+= get_all_cpu_total(dd
->int_counter
);
1104 spin_unlock_irqrestore(&hfi1_devs_lock
, flags
);
1108 static int _driver_stats_seq_show(struct seq_file
*s
, void *v
)
1112 u64
*stats
= (u64
*)&hfi1_stats
;
1113 size_t sz
= seq_get_buf(s
, &buffer
);
1115 if (sz
< sizeof(u64
))
1117 /* special case for interrupts */
1119 *(u64
*)buffer
= hfi1_sps_ints();
1121 *(u64
*)buffer
= stats
[*spos
];
1122 seq_commit(s
, sizeof(u64
));
1126 DEBUGFS_SEQ_FILE_OPS(driver_stats
);
1127 DEBUGFS_SEQ_FILE_OPEN(driver_stats
)
1128 DEBUGFS_FILE_OPS(driver_stats
);
1130 void hfi1_dbg_init(void)
1132 hfi1_dbg_root
= debugfs_create_dir(DRIVER_NAME
, NULL
);
1134 pr_warn("init of debugfs failed\n");
1135 DEBUGFS_SEQ_FILE_CREATE(driver_stats_names
, hfi1_dbg_root
, NULL
);
1136 DEBUGFS_SEQ_FILE_CREATE(driver_stats
, hfi1_dbg_root
, NULL
);
1139 void hfi1_dbg_exit(void)
1141 debugfs_remove_recursive(hfi1_dbg_root
);
1142 hfi1_dbg_root
= NULL
;