summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/qla2xxx/qla_attr.c
blob: fc25cd834668246d7ebd4ab3069f696cd92acd52 (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
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
/*
 *                  QLOGIC LINUX SOFTWARE
 *
 * QLogic ISP2x00 device driver for Linux 2.6.x
 * Copyright (C) 2003-2005 QLogic Corporation
 * (www.qlogic.com)
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 */
#include "qla_def.h"

#include <linux/vmalloc.h>
#include <scsi/scsi_transport_fc.h>

/* SYSFS attributes --------------------------------------------------------- */

static ssize_t
qla2x00_sysfs_read_fw_dump(struct kobject *kobj, char *buf, loff_t off,
    size_t count)
{
	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
	    struct device, kobj)));

	if (ha->fw_dump_reading == 0)
		return 0;
	if (off > ha->fw_dump_buffer_len)
		return 0;
	if (off + count > ha->fw_dump_buffer_len)
		count = ha->fw_dump_buffer_len - off;

	memcpy(buf, &ha->fw_dump_buffer[off], count);

	return (count);
}

static ssize_t
qla2x00_sysfs_write_fw_dump(struct kobject *kobj, char *buf, loff_t off,
    size_t count)
{
	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
	    struct device, kobj)));
	int reading;
	uint32_t dump_size;

	if (off != 0)
		return (0);

	reading = simple_strtol(buf, NULL, 10);
	switch (reading) {
	case 0:
		if (ha->fw_dump_reading == 1) {
			qla_printk(KERN_INFO, ha,
			    "Firmware dump cleared on (%ld).\n",
			    ha->host_no);

			vfree(ha->fw_dump_buffer);
			if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha))
				free_pages((unsigned long)ha->fw_dump,
				    ha->fw_dump_order);

			ha->fw_dump_reading = 0;
			ha->fw_dump_buffer = NULL;
			ha->fw_dump = NULL;
			ha->fw_dumped = 0;
		}
		break;
	case 1:
		if ((ha->fw_dump || ha->fw_dumped) && !ha->fw_dump_reading) {
			ha->fw_dump_reading = 1;

			if (IS_QLA24XX(ha) || IS_QLA25XX(ha))
				dump_size = FW_DUMP_SIZE_24XX;
			else {
				dump_size = FW_DUMP_SIZE_1M;
				if (ha->fw_memory_size < 0x20000)
					dump_size = FW_DUMP_SIZE_128K;
				else if (ha->fw_memory_size < 0x80000)
					dump_size = FW_DUMP_SIZE_512K;
			}
			ha->fw_dump_buffer = (char *)vmalloc(dump_size);
			if (ha->fw_dump_buffer == NULL) {
				qla_printk(KERN_WARNING, ha,
				    "Unable to allocate memory for firmware "
				    "dump buffer (%d).\n", dump_size);

				ha->fw_dump_reading = 0;
				return (count);
			}
			qla_printk(KERN_INFO, ha,
			    "Firmware dump ready for read on (%ld).\n",
			    ha->host_no);
			memset(ha->fw_dump_buffer, 0, dump_size);
			ha->isp_ops.ascii_fw_dump(ha);
			ha->fw_dump_buffer_len = strlen(ha->fw_dump_buffer);
		}
		break;
	}
	return (count);
}

static struct bin_attribute sysfs_fw_dump_attr = {
	.attr = {
		.name = "fw_dump",
		.mode = S_IRUSR | S_IWUSR,
		.owner = THIS_MODULE,
	},
	.size = 0,
	.read = qla2x00_sysfs_read_fw_dump,
	.write = qla2x00_sysfs_write_fw_dump,
};

static ssize_t
qla2x00_sysfs_read_nvram(struct kobject *kobj, char *buf, loff_t off,
    size_t count)
{
	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
	    struct device, kobj)));
	unsigned long	flags;

	if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size)
		return 0;

	/* Read NVRAM. */
	spin_lock_irqsave(&ha->hardware_lock, flags);
	ha->isp_ops.read_nvram(ha, (uint8_t *)buf, ha->nvram_base,
	    ha->nvram_size);
	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	return (count);
}

static ssize_t
qla2x00_sysfs_write_nvram(struct kobject *kobj, char *buf, loff_t off,
    size_t count)
{
	struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
	    struct device, kobj)));
	unsigned long	flags;
	uint16_t	cnt;

	if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size)
		return 0;

	/* Checksum NVRAM. */
	if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
		uint32_t *iter;
		uint32_t chksum;

		iter = (uint32_t *)buf;
		chksum = 0;
		for (cnt = 0; cnt < ((count >> 2) - 1); cnt++)
			chksum += le32_to_cpu(*iter++);
		chksum = ~chksum + 1;
		*iter = cpu_to_le32(chksum);
	} else {
		uint8_t *iter;
		uint8_t chksum;

		iter = (uint8_t *)buf;
		chksum = 0;
		for (cnt = 0; cnt < count - 1; cnt++)
			chksum += *iter++;
		chksum = ~chksum + 1;
		*iter = chksum;
	}

	/* Write NVRAM. */
	spin_lock_irqsave(&ha->hardware_lock, flags);
	ha->isp_ops.write_nvram(ha, (uint8_t *)buf, ha->nvram_base, count);
	spin_unlock_irqrestore(&ha->hardware_lock, flags);

	return (count);
}

static struct bin_attribute sysfs_nvram_attr = {
	.attr = {
		.name = "nvram",
		.mode = S_IRUSR | S_IWUSR,
		.owner = THIS_MODULE,
	},
	.size = 0,
	.read = qla2x00_sysfs_read_nvram,
	.write = qla2x00_sysfs_write_nvram,
};

void
qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha)
{
	struct Scsi_Host *host = ha->host;

	sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr);
	sysfs_nvram_attr.size = ha->nvram_size;
	sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr);
}

void
qla2x00_free_sysfs_attr(scsi_qla_host_t *ha)
{
	struct Scsi_Host *host = ha->host;

	sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr);
	sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr);
}

/* Scsi_Host attributes. */

static ssize_t
qla2x00_drvr_version_show(struct class_device *cdev, char *buf)
{
	return snprintf(buf, PAGE_SIZE, "%s\n", qla2x00_version_str);
}

static ssize_t
qla2x00_fw_version_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	char fw_str[30];

	return snprintf(buf, PAGE_SIZE, "%s\n",
	    ha->isp_ops.fw_version_str(ha, fw_str));
}

static ssize_t
qla2x00_serial_num_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	uint32_t sn;

	sn = ((ha->serial0 & 0x1f) << 16) | (ha->serial2 << 8) | ha->serial1;
	return snprintf(buf, PAGE_SIZE, "%c%05d\n", 'A' + sn / 100000,
	    sn % 100000);
}

static ssize_t
qla2x00_isp_name_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	return snprintf(buf, PAGE_SIZE, "%s\n", ha->brd_info->isp_name);
}

static ssize_t
qla2x00_isp_id_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	return snprintf(buf, PAGE_SIZE, "%04x %04x %04x %04x\n",
	    ha->product_id[0], ha->product_id[1], ha->product_id[2],
	    ha->product_id[3]);
}

static ssize_t
qla2x00_model_name_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	return snprintf(buf, PAGE_SIZE, "%s\n", ha->model_number);
}

static ssize_t
qla2x00_model_desc_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	return snprintf(buf, PAGE_SIZE, "%s\n",
	    ha->model_desc ? ha->model_desc: "");
}

static ssize_t
qla2x00_pci_info_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	char pci_info[30];

	return snprintf(buf, PAGE_SIZE, "%s\n",
	    ha->isp_ops.pci_info_str(ha, pci_info));
}

static ssize_t
qla2x00_state_show(struct class_device *cdev, char *buf)
{
	scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
	int len = 0;

	if (atomic_read(&ha->loop_state) == LOOP_DOWN ||
	    atomic_read(&ha->loop_state) == LOOP_DEAD)
		len = snprintf(buf, PAGE_SIZE, "Link Down\n");
	else if (atomic_read(&ha->loop_state) != LOOP_READY ||
	    test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
	    test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags))
		len = snprintf(buf, PAGE_SIZE, "Unknown Link State\n");
	else {
		len = snprintf(buf, PAGE_SIZE, "Link Up - ");

		switch (ha->current_topology) {
		case ISP_CFG_NL:
			len += snprintf(buf + len, PAGE_SIZE-len, "Loop\n");
			break;
		case ISP_CFG_FL:
			len += snprintf(buf + len, PAGE_SIZE-len, "FL_Port\n");
			break;
		case ISP_CFG_N:
			len += snprintf(buf + len, PAGE_SIZE-len,
			    "N_Port to N_Port\n");
			break;
		case ISP_CFG_F:
			len += snprintf(buf + len, PAGE_SIZE-len, "F_Port\n");
			break;
		default:
			len += snprintf(buf + len, PAGE_SIZE-len, "Loop\n");
			break;
		}
	}
	return len;
}

static CLASS_DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show,
	NULL);
static CLASS_DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
static CLASS_DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
static CLASS_DEVICE_ATTR(isp_name, S_IRUGO, qla2x00_isp_name_show, NULL);
static CLASS_DEVICE_ATTR(isp_id, S_IRUGO, qla2x00_isp_id_show, NULL);
static CLASS_DEVICE_ATTR(model_name, S_IRUGO, qla2x00_model_name_show, NULL);
static CLASS_DEVICE_ATTR(model_desc, S_IRUGO, qla2x00_model_desc_show, NULL);
static CLASS_DEVICE_ATTR(pci_info, S_IRUGO, qla2x00_pci_info_show, NULL);
static CLASS_DEVICE_ATTR(state, S_IRUGO, qla2x00_state_show, NULL);

struct class_device_attribute *qla2x00_host_attrs[] = {
	&class_device_attr_driver_version,
	&class_device_attr_fw_version,
	&class_device_attr_serial_num,
	&class_device_attr_isp_name,
	&class_device_attr_isp_id,
	&class_device_attr_model_name,
	&class_device_attr_model_desc,
	&class_device_attr_pci_info,
	&class_device_attr_state,
	NULL,
};

/* Host attributes. */

static void
qla2x00_get_host_port_id(struct Scsi_Host *shost)
{
	scsi_qla_host_t *ha = to_qla_host(shost);

	fc_host_port_id(shost) = ha->d_id.b.domain << 16 |
	    ha->d_id.b.area << 8 | ha->d_id.b.al_pa;
}

static void
qla2x00_get_starget_node_name(struct scsi_target *starget)
{
	struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
	scsi_qla_host_t *ha = to_qla_host(host);
	fc_port_t *fcport;
	u64 node_name = 0;

	list_for_each_entry(fcport, &ha->fcports, list) {
		if (starget->id == fcport->os_target_id) {
			node_name = wwn_to_u64(fcport->node_name);
			break;
		}
	}

	fc_starget_node_name(starget) = node_name;
}

static void
qla2x00_get_starget_port_name(struct scsi_target *starget)
{
	struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
	scsi_qla_host_t *ha = to_qla_host(host);
	fc_port_t *fcport;
	u64 port_name = 0;

	list_for_each_entry(fcport, &ha->fcports, list) {
		if (starget->id == fcport->os_target_id) {
			port_name = wwn_to_u64(fcport->port_name);
			break;
		}
	}

	fc_starget_port_name(starget) = port_name;
}

static void
qla2x00_get_starget_port_id(struct scsi_target *starget)
{
	struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
	scsi_qla_host_t *ha = to_qla_host(host);
	fc_port_t *fcport;
	uint32_t port_id = ~0U;

	list_for_each_entry(fcport, &ha->fcports, list) {
		if (starget->id == fcport->os_target_id) {
			port_id = fcport->d_id.b.domain << 16 |
			    fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
			break;
		}
	}

	fc_starget_port_id(starget) = port_id;
}

static void
qla2x00_get_rport_loss_tmo(struct fc_rport *rport)
{
	struct Scsi_Host *host = rport_to_shost(rport);
	scsi_qla_host_t *ha = to_qla_host(host);

	rport->dev_loss_tmo = ha->port_down_retry_count + 5;
}

static void
qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
{
	struct Scsi_Host *host = rport_to_shost(rport);
	scsi_qla_host_t *ha = to_qla_host(host);

	if (timeout)
		ha->port_down_retry_count = timeout;
	else
		ha->port_down_retry_count = 1;

	rport->dev_loss_tmo = ha->port_down_retry_count + 5;
}

struct fc_function_template qla2xxx_transport_functions = {

	.show_host_node_name = 1,
	.show_host_port_name = 1,
	.show_host_supported_classes = 1,

	.get_host_port_id = qla2x00_get_host_port_id,
	.show_host_port_id = 1,

	.dd_fcrport_size = sizeof(struct fc_port *),
	.show_rport_supported_classes = 1,

	.get_starget_node_name = qla2x00_get_starget_node_name,
	.show_starget_node_name = 1,
	.get_starget_port_name = qla2x00_get_starget_port_name,
	.show_starget_port_name = 1,
	.get_starget_port_id  = qla2x00_get_starget_port_id,
	.show_starget_port_id = 1,

	.get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo,
	.set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
	.show_rport_dev_loss_tmo = 1,

};

void
qla2x00_init_host_attr(scsi_qla_host_t *ha)
{
	fc_host_node_name(ha->host) = wwn_to_u64(ha->init_cb->node_name);
	fc_host_port_name(ha->host) = wwn_to_u64(ha->init_cb->port_name);
	fc_host_supported_classes(ha->host) = FC_COS_CLASS3;
}
OpenPOWER on IntegriCloud