283 lines
6.7 KiB
C
283 lines
6.7 KiB
C
/*
|
|
* 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"
|
|
|
|
#define QETH_DEVICE_ATTR(_id, _name, _mode, _show, _store) \
|
|
struct device_attribute dev_attr_##_id = __ATTR(_name, _mode, _show, _store)
|
|
|
|
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_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)
|
|
{
|
|
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 (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)
|
|
{
|
|
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;
|
|
|
|
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);
|
|
int rc = 0;
|
|
int enable;
|
|
|
|
if (!card)
|
|
return -EINVAL;
|
|
|
|
if (sysfs_streq(buf, "0"))
|
|
enable = 0;
|
|
else if (sysfs_streq(buf, "1"))
|
|
enable = 1;
|
|
else
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&card->conf_mutex);
|
|
|
|
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 (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 (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,
|
|
};
|
|
|
|
int qeth_l2_create_device_attributes(struct device *dev)
|
|
{
|
|
return sysfs_create_group(&dev->kobj, &qeth_l2_bridgeport_attr_group);
|
|
}
|
|
|
|
void qeth_l2_remove_device_attributes(struct device *dev)
|
|
{
|
|
sysfs_remove_group(&dev->kobj, &qeth_l2_bridgeport_attr_group);
|
|
}
|
|
|
|
/**
|
|
* 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);
|
|
}
|
|
|
|
const struct attribute_group *qeth_l2_attr_groups[] = {
|
|
&qeth_device_attr_group,
|
|
&qeth_device_blkt_group,
|
|
/* l2 specific, see l2_{create,remove}_device_attributes(): */
|
|
&qeth_l2_bridgeport_attr_group,
|
|
NULL,
|
|
};
|