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8#include <linux/kernel.h>
9#include <linux/proc_fs.h>
10#include <linux/seq_file.h>
11#include <asm/ccwdev.h>
12
13#include "cio.h"
14#include "css.h"
15#include "device.h"
16#include "ioasm.h"
17#include "chsc.h"
18#include "qdio_debug.h"
19#include "qdio_perf.h"
20
21int qdio_performance_stats;
22struct qdio_perf_stats perf_stats;
23
24#ifdef CONFIG_PROC_FS
25static struct proc_dir_entry *qdio_perf_pde;
26#endif
27
28
29
30
31static int qdio_perf_proc_show(struct seq_file *m, void *v)
32{
33 seq_printf(m, "Number of qdio interrupts\t\t\t: %li\n",
34 (long)atomic_long_read(&perf_stats.qdio_int));
35 seq_printf(m, "Number of PCI interrupts\t\t\t: %li\n",
36 (long)atomic_long_read(&perf_stats.pci_int));
37 seq_printf(m, "Number of adapter interrupts\t\t\t: %li\n",
38 (long)atomic_long_read(&perf_stats.thin_int));
39 seq_printf(m, "\n");
40 seq_printf(m, "Inbound tasklet runs\t\t\t\t: %li\n",
41 (long)atomic_long_read(&perf_stats.tasklet_inbound));
42 seq_printf(m, "Outbound tasklet runs\t\t\t\t: %li\n",
43 (long)atomic_long_read(&perf_stats.tasklet_outbound));
44 seq_printf(m, "Adapter interrupt tasklet runs/loops\t\t: %li/%li\n",
45 (long)atomic_long_read(&perf_stats.tasklet_thinint),
46 (long)atomic_long_read(&perf_stats.tasklet_thinint_loop));
47 seq_printf(m, "Adapter interrupt inbound tasklet runs/loops\t: %li/%li\n",
48 (long)atomic_long_read(&perf_stats.thinint_inbound),
49 (long)atomic_long_read(&perf_stats.thinint_inbound_loop));
50 seq_printf(m, "\n");
51 seq_printf(m, "Number of SIGA In issued\t\t\t: %li\n",
52 (long)atomic_long_read(&perf_stats.siga_in));
53 seq_printf(m, "Number of SIGA Out issued\t\t\t: %li\n",
54 (long)atomic_long_read(&perf_stats.siga_out));
55 seq_printf(m, "Number of SIGA Sync issued\t\t\t: %li\n",
56 (long)atomic_long_read(&perf_stats.siga_sync));
57 seq_printf(m, "\n");
58 seq_printf(m, "Number of inbound transfers\t\t\t: %li\n",
59 (long)atomic_long_read(&perf_stats.inbound_handler));
60 seq_printf(m, "Number of outbound transfers\t\t\t: %li\n",
61 (long)atomic_long_read(&perf_stats.outbound_handler));
62 seq_printf(m, "\n");
63 seq_printf(m, "Number of fast requeues (outg. SBAL w/o SIGA)\t: %li\n",
64 (long)atomic_long_read(&perf_stats.fast_requeue));
65 seq_printf(m, "Number of outbound target full condition\t: %li\n",
66 (long)atomic_long_read(&perf_stats.outbound_target_full));
67 seq_printf(m, "Number of outbound tasklet mod_timer calls\t: %li\n",
68 (long)atomic_long_read(&perf_stats.debug_tl_out_timer));
69 seq_printf(m, "Number of stop polling calls\t\t\t: %li\n",
70 (long)atomic_long_read(&perf_stats.debug_stop_polling));
71 seq_printf(m, "AI inbound tasklet loops after stop polling\t: %li\n",
72 (long)atomic_long_read(&perf_stats.thinint_inbound_loop2));
73 seq_printf(m, "QEBSM EQBS total/incomplete\t\t\t: %li/%li\n",
74 (long)atomic_long_read(&perf_stats.debug_eqbs_all),
75 (long)atomic_long_read(&perf_stats.debug_eqbs_incomplete));
76 seq_printf(m, "QEBSM SQBS total/incomplete\t\t\t: %li/%li\n",
77 (long)atomic_long_read(&perf_stats.debug_sqbs_all),
78 (long)atomic_long_read(&perf_stats.debug_sqbs_incomplete));
79 seq_printf(m, "\n");
80 return 0;
81}
82static int qdio_perf_seq_open(struct inode *inode, struct file *filp)
83{
84 return single_open(filp, qdio_perf_proc_show, NULL);
85}
86
87static const struct file_operations qdio_perf_proc_fops = {
88 .owner = THIS_MODULE,
89 .open = qdio_perf_seq_open,
90 .read = seq_read,
91 .llseek = seq_lseek,
92 .release = single_release,
93};
94
95
96
97
98static ssize_t qdio_perf_stats_show(struct bus_type *bus, char *buf)
99{
100 return sprintf(buf, "%i\n", qdio_performance_stats ? 1 : 0);
101}
102
103static ssize_t qdio_perf_stats_store(struct bus_type *bus,
104 const char *buf, size_t count)
105{
106 unsigned long i;
107
108 if (strict_strtoul(buf, 16, &i) != 0)
109 return -EINVAL;
110 if ((i != 0) && (i != 1))
111 return -EINVAL;
112 if (i == qdio_performance_stats)
113 return count;
114
115 qdio_performance_stats = i;
116
117 if (i == 0)
118 memset(&perf_stats, 0, sizeof(struct qdio_perf_stats));
119 return count;
120}
121
122static BUS_ATTR(qdio_performance_stats, 0644, qdio_perf_stats_show,
123 qdio_perf_stats_store);
124
125int __init qdio_setup_perf_stats(void)
126{
127 int rc;
128
129 rc = bus_create_file(&ccw_bus_type, &bus_attr_qdio_performance_stats);
130 if (rc)
131 return rc;
132
133#ifdef CONFIG_PROC_FS
134 memset(&perf_stats, 0, sizeof(struct qdio_perf_stats));
135 qdio_perf_pde = proc_create("qdio_perf", S_IFREG | S_IRUGO,
136 NULL, &qdio_perf_proc_fops);
137#endif
138 return 0;
139}
140
141void qdio_remove_perf_stats(void)
142{
143#ifdef CONFIG_PROC_FS
144 remove_proc_entry("qdio_perf", NULL);
145#endif
146 bus_remove_file(&ccw_bus_type, &bus_attr_qdio_performance_stats);
147}
148
