Loading...
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 | // SPDX-License-Identifier: GPL-2.0
/*
* Copyright IBM Corp. 2013
* Author(s): Eugene Crosser <eugene.crosser@ru.ibm.com>
*/
#include <linux/slab.h>
#include <asm/ebcdic.h>
#include "qeth_core.h"
#include "qeth_l2.h"
static ssize_t qeth_bridge_port_role_state_show(struct device *dev,
struct device_attribute *attr, char *buf,
int show_state)
{
struct qeth_card *card = dev_get_drvdata(dev);
enum qeth_sbp_states state = QETH_SBP_STATE_INACTIVE;
int rc = 0;
char *word;
if (!card)
return -EINVAL;
if (qeth_l2_vnicc_is_in_use(card))
return sprintf(buf, "n/a (VNIC characteristics)\n");
if (qeth_card_hw_is_reachable(card) &&
card->options.sbp.supported_funcs)
rc = qeth_bridgeport_query_ports(card,
&card->options.sbp.role, &state);
if (!rc) {
if (show_state)
switch (state) {
case QETH_SBP_STATE_INACTIVE:
word = "inactive"; break;
case QETH_SBP_STATE_STANDBY:
word = "standby"; break;
case QETH_SBP_STATE_ACTIVE:
word = "active"; break;
default:
rc = -EIO;
}
else
switch (card->options.sbp.role) {
case QETH_SBP_ROLE_NONE:
word = "none"; break;
case QETH_SBP_ROLE_PRIMARY:
word = "primary"; break;
case QETH_SBP_ROLE_SECONDARY:
word = "secondary"; break;
default:
rc = -EIO;
}
if (rc)
QETH_CARD_TEXT_(card, 2, "SBP%02x:%02x",
card->options.sbp.role, state);
else
rc = sprintf(buf, "%s\n", word);
}
return rc;
}
static ssize_t qeth_bridge_port_role_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct qeth_card *card = dev_get_drvdata(dev);
if (qeth_l2_vnicc_is_in_use(card))
return sprintf(buf, "n/a (VNIC characteristics)\n");
return qeth_bridge_port_role_state_show(dev, attr, buf, 0);
}
static ssize_t qeth_bridge_port_role_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct qeth_card *card = dev_get_drvdata(dev);
int rc = 0;
enum qeth_sbp_roles role;
if (!card)
return -EINVAL;
if (sysfs_streq(buf, "primary"))
role = QETH_SBP_ROLE_PRIMARY;
else if (sysfs_streq(buf, "secondary"))
role = QETH_SBP_ROLE_SECONDARY;
else if (sysfs_streq(buf, "none"))
role = QETH_SBP_ROLE_NONE;
else
return -EINVAL;
mutex_lock(&card->conf_mutex);
if (qeth_l2_vnicc_is_in_use(card))
rc = -EBUSY;
else if (card->options.sbp.reflect_promisc)
/* Forbid direct manipulation */
rc = -EPERM;
else if (qeth_card_hw_is_reachable(card)) {
rc = qeth_bridgeport_setrole(card, role);
if (!rc)
card->options.sbp.role = role;
} else
card->options.sbp.role = role;
mutex_unlock(&card->conf_mutex);
return rc ? rc : count;
}
static DEVICE_ATTR(bridge_role, 0644, qeth_bridge_port_role_show,
qeth_bridge_port_role_store);
static ssize_t qeth_bridge_port_state_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct qeth_card *card = dev_get_drvdata(dev);
if (qeth_l2_vnicc_is_in_use(card))
return sprintf(buf, "n/a (VNIC characteristics)\n");
return qeth_bridge_port_role_state_show(dev, attr, buf, 1);
}
static DEVICE_ATTR(bridge_state, 0444, qeth_bridge_port_state_show,
NULL);
static ssize_t qeth_bridgeport_hostnotification_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct qeth_card *card = dev_get_drvdata(dev);
int enabled;
if (!card)
return -EINVAL;
if (qeth_l2_vnicc_is_in_use(card))
return sprintf(buf, "n/a (VNIC characteristics)\n");
enabled = card->options.sbp.hostnotification;
return sprintf(buf, "%d\n", enabled);
}
static ssize_t qeth_bridgeport_hostnotification_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct qeth_card *card = dev_get_drvdata(dev);
bool enable;
int rc;
if (!card)
return -EINVAL;
rc = kstrtobool(buf, &enable);
if (rc)
return rc;
mutex_lock(&card->conf_mutex);
if (qeth_l2_vnicc_is_in_use(card))
rc = -EBUSY;
else if (qeth_card_hw_is_reachable(card)) {
rc = qeth_bridgeport_an_set(card, enable);
if (!rc)
card->options.sbp.hostnotification = enable;
} else
card->options.sbp.hostnotification = enable;
mutex_unlock(&card->conf_mutex);
return rc ? rc : count;
}
static DEVICE_ATTR(bridge_hostnotify, 0644,
qeth_bridgeport_hostnotification_show,
qeth_bridgeport_hostnotification_store);
static ssize_t qeth_bridgeport_reflect_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct qeth_card *card = dev_get_drvdata(dev);
char *state;
if (!card)
return -EINVAL;
if (qeth_l2_vnicc_is_in_use(card))
return sprintf(buf, "n/a (VNIC characteristics)\n");
if (card->options.sbp.reflect_promisc) {
if (card->options.sbp.reflect_promisc_primary)
state = "primary";
else
state = "secondary";
} else
state = "none";
return sprintf(buf, "%s\n", state);
}
static ssize_t qeth_bridgeport_reflect_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct qeth_card *card = dev_get_drvdata(dev);
int enable, primary;
int rc = 0;
if (!card)
return -EINVAL;
if (sysfs_streq(buf, "none")) {
enable = 0;
primary = 0;
} else if (sysfs_streq(buf, "primary")) {
enable = 1;
primary = 1;
} else if (sysfs_streq(buf, "secondary")) {
enable = 1;
primary = 0;
} else
return -EINVAL;
mutex_lock(&card->conf_mutex);
if (qeth_l2_vnicc_is_in_use(card))
rc = -EBUSY;
else if (card->options.sbp.role != QETH_SBP_ROLE_NONE)
rc = -EPERM;
else {
card->options.sbp.reflect_promisc = enable;
card->options.sbp.reflect_promisc_primary = primary;
rc = 0;
}
mutex_unlock(&card->conf_mutex);
return rc ? rc : count;
}
static DEVICE_ATTR(bridge_reflect_promisc, 0644,
qeth_bridgeport_reflect_show,
qeth_bridgeport_reflect_store);
static struct attribute *qeth_l2_bridgeport_attrs[] = {
&dev_attr_bridge_role.attr,
&dev_attr_bridge_state.attr,
&dev_attr_bridge_hostnotify.attr,
&dev_attr_bridge_reflect_promisc.attr,
NULL,
};
static struct attribute_group qeth_l2_bridgeport_attr_group = {
.attrs = qeth_l2_bridgeport_attrs,
};
/**
* qeth_l2_setup_bridgeport_attrs() - set/restore attrs when turning online.
* @card: qeth_card structure pointer
*
* Note: this function is called with conf_mutex held by the caller
*/
void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card)
{
int rc;
if (!card)
return;
if (!card->options.sbp.supported_funcs)
return;
if (card->options.sbp.role != QETH_SBP_ROLE_NONE) {
/* Conditional to avoid spurious error messages */
qeth_bridgeport_setrole(card, card->options.sbp.role);
/* Let the callback function refresh the stored role value. */
qeth_bridgeport_query_ports(card,
&card->options.sbp.role, NULL);
}
if (card->options.sbp.hostnotification) {
rc = qeth_bridgeport_an_set(card, 1);
if (rc)
card->options.sbp.hostnotification = 0;
} else
qeth_bridgeport_an_set(card, 0);
}
/* VNIC CHARS support */
/* convert sysfs attr name to VNIC characteristic */
static u32 qeth_l2_vnicc_sysfs_attr_to_char(const char *attr_name)
{
if (sysfs_streq(attr_name, "flooding"))
return QETH_VNICC_FLOODING;
else if (sysfs_streq(attr_name, "mcast_flooding"))
return QETH_VNICC_MCAST_FLOODING;
else if (sysfs_streq(attr_name, "learning"))
return QETH_VNICC_LEARNING;
else if (sysfs_streq(attr_name, "takeover_setvmac"))
return QETH_VNICC_TAKEOVER_SETVMAC;
else if (sysfs_streq(attr_name, "takeover_learning"))
return QETH_VNICC_TAKEOVER_LEARNING;
else if (sysfs_streq(attr_name, "bridge_invisible"))
return QETH_VNICC_BRIDGE_INVISIBLE;
else if (sysfs_streq(attr_name, "rx_bcast"))
return QETH_VNICC_RX_BCAST;
return 0;
}
/* get current timeout setting */
static ssize_t qeth_vnicc_timeout_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct qeth_card *card = dev_get_drvdata(dev);
u32 timeout;
int rc;
if (!card)
return -EINVAL;
rc = qeth_l2_vnicc_get_timeout(card, &timeout);
if (rc == -EBUSY)
return sprintf(buf, "n/a (BridgePort)\n");
if (rc == -EOPNOTSUPP)
return sprintf(buf, "n/a\n");
return rc ? rc : sprintf(buf, "%d\n", timeout);
}
/* change timeout setting */
static ssize_t qeth_vnicc_timeout_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct qeth_card *card = dev_get_drvdata(dev);
u32 timeout;
int rc;
if (!card)
return -EINVAL;
rc = kstrtou32(buf, 10, &timeout);
if (rc)
return rc;
mutex_lock(&card->conf_mutex);
rc = qeth_l2_vnicc_set_timeout(card, timeout);
mutex_unlock(&card->conf_mutex);
return rc ? rc : count;
}
/* get current setting of characteristic */
static ssize_t qeth_vnicc_char_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct qeth_card *card = dev_get_drvdata(dev);
bool state;
u32 vnicc;
int rc;
if (!card)
return -EINVAL;
vnicc = qeth_l2_vnicc_sysfs_attr_to_char(attr->attr.name);
rc = qeth_l2_vnicc_get_state(card, vnicc, &state);
if (rc == -EBUSY)
return sprintf(buf, "n/a (BridgePort)\n");
if (rc == -EOPNOTSUPP)
return sprintf(buf, "n/a\n");
return rc ? rc : sprintf(buf, "%d\n", state);
}
/* change setting of characteristic */
static ssize_t qeth_vnicc_char_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct qeth_card *card = dev_get_drvdata(dev);
bool state;
u32 vnicc;
int rc;
if (!card)
return -EINVAL;
if (kstrtobool(buf, &state))
return -EINVAL;
vnicc = qeth_l2_vnicc_sysfs_attr_to_char(attr->attr.name);
mutex_lock(&card->conf_mutex);
rc = qeth_l2_vnicc_set_state(card, vnicc, state);
mutex_unlock(&card->conf_mutex);
return rc ? rc : count;
}
static DEVICE_ATTR(flooding, 0644, qeth_vnicc_char_show, qeth_vnicc_char_store);
static DEVICE_ATTR(mcast_flooding, 0644, qeth_vnicc_char_show,
qeth_vnicc_char_store);
static DEVICE_ATTR(learning, 0644, qeth_vnicc_char_show, qeth_vnicc_char_store);
static DEVICE_ATTR(learning_timeout, 0644, qeth_vnicc_timeout_show,
qeth_vnicc_timeout_store);
static DEVICE_ATTR(takeover_setvmac, 0644, qeth_vnicc_char_show,
qeth_vnicc_char_store);
static DEVICE_ATTR(takeover_learning, 0644, qeth_vnicc_char_show,
qeth_vnicc_char_store);
static DEVICE_ATTR(bridge_invisible, 0644, qeth_vnicc_char_show,
qeth_vnicc_char_store);
static DEVICE_ATTR(rx_bcast, 0644, qeth_vnicc_char_show, qeth_vnicc_char_store);
static struct attribute *qeth_l2_vnicc_attrs[] = {
&dev_attr_flooding.attr,
&dev_attr_mcast_flooding.attr,
&dev_attr_learning.attr,
&dev_attr_learning_timeout.attr,
&dev_attr_takeover_setvmac.attr,
&dev_attr_takeover_learning.attr,
&dev_attr_bridge_invisible.attr,
&dev_attr_rx_bcast.attr,
NULL,
};
static struct attribute_group qeth_l2_vnicc_attr_group = {
.attrs = qeth_l2_vnicc_attrs,
.name = "vnicc",
};
static const struct attribute_group *qeth_l2_only_attr_groups[] = {
&qeth_l2_bridgeport_attr_group,
&qeth_l2_vnicc_attr_group,
NULL,
};
int qeth_l2_create_device_attributes(struct device *dev)
{
return sysfs_create_groups(&dev->kobj, qeth_l2_only_attr_groups);
}
void qeth_l2_remove_device_attributes(struct device *dev)
{
sysfs_remove_groups(&dev->kobj, qeth_l2_only_attr_groups);
}
const struct attribute_group *qeth_l2_attr_groups[] = {
&qeth_device_attr_group,
&qeth_device_blkt_group,
/* l2 specific, see qeth_l2_only_attr_groups: */
&qeth_l2_bridgeport_attr_group,
&qeth_l2_vnicc_attr_group,
NULL,
};
|