summaryrefslogtreecommitdiff
path: root/drivers/s390/net/qeth_proc.c
blob: 360d782c7adacbc22e5fa074e6306dcde29fd810 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
/*
 *
 * linux/drivers/s390/net/qeth_fs.c
 *
 * Linux on zSeries OSA Express and HiperSockets support
 * This file contains code related to procfs.
 *
 * Copyright 2000,2003 IBM Corporation
 *
 * Author(s): Thomas Spatzier <tspat@de.ibm.com>
 *
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/list.h>
#include <linux/rwsem.h>

#include "qeth.h"
#include "qeth_mpc.h"
#include "qeth_fs.h"

/***** /proc/qeth *****/
#define QETH_PROCFILE_NAME "qeth"
static struct proc_dir_entry *qeth_procfile;

static int
qeth_procfile_seq_match(struct device *dev, void *data)
{
	return(dev ? 1 : 0);
}

static void *
qeth_procfile_seq_start(struct seq_file *s, loff_t *offset)
{
	struct device *dev = NULL;
	loff_t nr = 0;
	
	down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
	if (*offset == 0)
		return SEQ_START_TOKEN;
	while (1) {
		dev = driver_find_device(&qeth_ccwgroup_driver.driver, dev,
					 NULL, qeth_procfile_seq_match);
		if (++nr == *offset)
			break;
		put_device(dev);
	}
	return dev;
}

static void
qeth_procfile_seq_stop(struct seq_file *s, void* it)
{
	up_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
}

static void *
qeth_procfile_seq_next(struct seq_file *s, void *it, loff_t *offset)
{
	struct device *prev, *next;
	
	if (it == SEQ_START_TOKEN) 
		prev = NULL;
	else
		prev = (struct device *) it;
	next = driver_find_device(&qeth_ccwgroup_driver.driver,
				  prev, NULL, qeth_procfile_seq_match);
	(*offset)++;
	return (void *) next;
}

static inline const char *
qeth_get_router_str(struct qeth_card *card, int ipv)
{
	enum qeth_routing_types routing_type = NO_ROUTER;

	if (ipv == 4) {
		routing_type = card->options.route4.type;
	} else {
#ifdef CONFIG_QETH_IPV6
		routing_type = card->options.route6.type;
#else
		return "n/a";
#endif /* CONFIG_QETH_IPV6 */
	}

	switch (routing_type){
	case PRIMARY_ROUTER:
		return "pri";
	case SECONDARY_ROUTER:
		return "sec";
	case MULTICAST_ROUTER:
		if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
			return "mc+";
		return "mc";
	case PRIMARY_CONNECTOR:
		if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
			return "p+c";
		return "p.c";
	case SECONDARY_CONNECTOR:
		if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
			return "s+c";
		return "s.c";
	default:   /* NO_ROUTER */
		return "no";
	}
}

static int
qeth_procfile_seq_show(struct seq_file *s, void *it)
{
	struct device *device;
	struct qeth_card *card;
	char tmp[12]; /* for qeth_get_prioq_str */

	if (it == SEQ_START_TOKEN){
		seq_printf(s, "devices                    CHPID interface  "
		              "cardtype       port chksum prio-q'ing rtr4 "
			      "rtr6 fsz   cnt\n");
		seq_printf(s, "-------------------------- ----- ---------- "
			      "-------------- ---- ------ ---------- ---- "
			      "---- ----- -----\n");
	} else {
		device = (struct device *) it;
		card = device->driver_data;
		seq_printf(s, "%s/%s/%s x%02X   %-10s %-14s %-4i ",
				CARD_RDEV_ID(card),
				CARD_WDEV_ID(card),
				CARD_DDEV_ID(card),
				card->info.chpid,
				QETH_CARD_IFNAME(card),
				qeth_get_cardname_short(card),
				card->info.portno);
		if (card->lan_online)
			seq_printf(s, "%-6s %-10s %-4s %-4s %-5s %-5i\n",
					qeth_get_checksum_str(card),
					qeth_get_prioq_str(card, tmp),
					qeth_get_router_str(card, 4),
					qeth_get_router_str(card, 6),
					qeth_get_bufsize_str(card),
					card->qdio.in_buf_pool.buf_count);
		else
			seq_printf(s, "  +++ LAN OFFLINE +++\n");
		put_device(device);
	}
	return 0;
}

static struct seq_operations qeth_procfile_seq_ops = {
	.start = qeth_procfile_seq_start,
	.stop  = qeth_procfile_seq_stop,
	.next  = qeth_procfile_seq_next,
	.show  = qeth_procfile_seq_show,
};

static int
qeth_procfile_open(struct inode *inode, struct file *file)
{
	return seq_open(file, &qeth_procfile_seq_ops);
}

static struct file_operations qeth_procfile_fops = {
	.owner   = THIS_MODULE,
	.open    = qeth_procfile_open,
	.read    = seq_read,
	.llseek  = seq_lseek,
	.release = seq_release,
};

/***** /proc/qeth_perf *****/
#define QETH_PERF_PROCFILE_NAME "qeth_perf"
static struct proc_dir_entry *qeth_perf_procfile;

#ifdef CONFIG_QETH_PERF_STATS
static int
qeth_perf_procfile_seq_show(struct seq_file *s, void *it)
{
	struct device *device;
	struct qeth_card *card;

	
	if (it == SEQ_START_TOKEN)
		return 0;

	device = (struct device *) it;
	card = device->driver_data;
	seq_printf(s, "For card with devnos %s/%s/%s (%s):\n",
			CARD_RDEV_ID(card),
			CARD_WDEV_ID(card),
			CARD_DDEV_ID(card),
			QETH_CARD_IFNAME(card)
		  );
	seq_printf(s, "  Skb's/buffers received                 : %lu/%u\n"
		      "  Skb's/buffers sent                     : %lu/%u\n\n",
		        card->stats.rx_packets, card->perf_stats.bufs_rec,
		        card->stats.tx_packets, card->perf_stats.bufs_sent
		  );
	seq_printf(s, "  Skb's/buffers sent without packing     : %lu/%u\n"
		      "  Skb's/buffers sent with packing        : %u/%u\n\n",
		   card->stats.tx_packets - card->perf_stats.skbs_sent_pack,
		   card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack,
		   card->perf_stats.skbs_sent_pack,
		   card->perf_stats.bufs_sent_pack
		  );
	seq_printf(s, "  Skbs sent in SG mode                   : %u\n"
		      "  Skb fragments sent in SG mode          : %u\n\n",
		      card->perf_stats.sg_skbs_sent,
		      card->perf_stats.sg_frags_sent);
	seq_printf(s, "  large_send tx (in Kbytes)              : %u\n"
		      "  large_send count                       : %u\n\n",
		      card->perf_stats.large_send_bytes >> 10,
		      card->perf_stats.large_send_cnt);
	seq_printf(s, "  Packing state changes no pkg.->packing : %u/%u\n"
		      "  Watermarks L/H                         : %i/%i\n"
		      "  Current buffer usage (outbound q's)    : "
		      "%i/%i/%i/%i\n\n",
		        card->perf_stats.sc_dp_p, card->perf_stats.sc_p_dp,
			QETH_LOW_WATERMARK_PACK, QETH_HIGH_WATERMARK_PACK,
			atomic_read(&card->qdio.out_qs[0]->used_buffers),
			(card->qdio.no_out_queues > 1)?
				atomic_read(&card->qdio.out_qs[1]->used_buffers)
				: 0,
			(card->qdio.no_out_queues > 2)?
				atomic_read(&card->qdio.out_qs[2]->used_buffers)
				: 0,
			(card->qdio.no_out_queues > 3)?
				atomic_read(&card->qdio.out_qs[3]->used_buffers)
				: 0
		  );
	seq_printf(s, "  Inbound handler time (in us)           : %u\n"
		      "  Inbound handler count                  : %u\n"
		      "  Inbound do_QDIO time (in us)           : %u\n"
		      "  Inbound do_QDIO count                  : %u\n\n"
		      "  Outbound handler time (in us)          : %u\n"
		      "  Outbound handler count                 : %u\n\n"
		      "  Outbound time (in us, incl QDIO)       : %u\n"
		      "  Outbound count                         : %u\n"
		      "  Outbound do_QDIO time (in us)          : %u\n"
		      "  Outbound do_QDIO count                 : %u\n\n",
		        card->perf_stats.inbound_time,
			card->perf_stats.inbound_cnt,
		        card->perf_stats.inbound_do_qdio_time,
			card->perf_stats.inbound_do_qdio_cnt,
			card->perf_stats.outbound_handler_time,
			card->perf_stats.outbound_handler_cnt,
			card->perf_stats.outbound_time,
			card->perf_stats.outbound_cnt,
		        card->perf_stats.outbound_do_qdio_time,
			card->perf_stats.outbound_do_qdio_cnt
		  );
	put_device(device);
	return 0;
}

static struct seq_operations qeth_perf_procfile_seq_ops = {
	.start = qeth_procfile_seq_start,
	.stop  = qeth_procfile_seq_stop,
	.next  = qeth_procfile_seq_next,
	.show  = qeth_perf_procfile_seq_show,
};

static int
qeth_perf_procfile_open(struct inode *inode, struct file *file)
{
	return seq_open(file, &qeth_perf_procfile_seq_ops);
}

static struct file_operations qeth_perf_procfile_fops = {
	.owner   = THIS_MODULE,
	.open    = qeth_perf_procfile_open,
	.read    = seq_read,
	.llseek  = seq_lseek,
	.release = seq_release,
};

#define qeth_perf_procfile_created qeth_perf_procfile
#else
#define qeth_perf_procfile_created 1
#endif /* CONFIG_QETH_PERF_STATS */

int __init
qeth_create_procfs_entries(void)
{
	qeth_procfile = create_proc_entry(QETH_PROCFILE_NAME,
					   S_IFREG | 0444, NULL);
	if (qeth_procfile)
		qeth_procfile->proc_fops = &qeth_procfile_fops;

#ifdef CONFIG_QETH_PERF_STATS
	qeth_perf_procfile = create_proc_entry(QETH_PERF_PROCFILE_NAME,
					   S_IFREG | 0444, NULL);
	if (qeth_perf_procfile)
		qeth_perf_procfile->proc_fops = &qeth_perf_procfile_fops;
#endif /* CONFIG_QETH_PERF_STATS */

	if (qeth_procfile &&
	    qeth_perf_procfile_created)
		return 0;
	else
		return -ENOMEM;
}

void __exit
qeth_remove_procfs_entries(void)
{
	if (qeth_procfile)
		remove_proc_entry(QETH_PROCFILE_NAME, NULL);
	if (qeth_perf_procfile)
		remove_proc_entry(QETH_PERF_PROCFILE_NAME, NULL);
}