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qeth: bridgeport support - address notifications

Selaa lähdekoodia 
Introduce functions to enable and disable bridgeport address
notification feature, sysfs attributes for access to these
functions from userspace, and udev events emitted when a host
joins or exits a bridgeport-enabled HiperSocket channel.

Signed-off-by: Eugene Crosser <eugene.crosser@ru.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eugene Crosser
2014-01-14 15:54:13 +01:00
committed by David S. Miller
vanhempi 59b55a4df2
commit 9f48b9db9a
7 muutettua tiedostoa jossa 368 lisäystä ja 0 poistoa
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62
drivers/s390/net/qeth_l2_sys.c
Näytä tiedosto

@@ -119,9 +119,63 @@ static ssize_t qeth_bridge_port_state_show(struct device *dev,
static DEVICE_ATTR(bridge_state, 0644, 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;
mutex_lock(&card->conf_mutex);
enabled = card->options.sbp.hostnotification;
mutex_unlock(&card->conf_mutex);
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 struct attribute *qeth_l2_bridgeport_attrs[] = {
&dev_attr_bridge_role.attr,
&dev_attr_bridge_state.attr,
&dev_attr_bridge_hostnotify.attr,
NULL,
};
@@ -147,6 +201,8 @@ void qeth_l2_remove_device_attributes(struct device *dev)
*/
void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card)
{
int rc;
if (!card)
return;
if (!card->options.sbp.supported_funcs)
@@ -158,4 +214,10 @@ void qeth_l2_setup_bridgeport_attrs(struct qeth_card *card)
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);
}