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authorUrsula Braun <ubraun@linux.vnet.ibm.com>2017-06-06 15:33:49 +0300
committerDavid S. Miller <davem@davemloft.net>2017-06-06 20:05:01 +0300
commit79a04e40f7f0e968b485a0d0cb12dcffc7f509c6 (patch)
treee755dc7eeddca3c37d791eb71e6520515058e212 /drivers/s390
parentcf536ffea99472e043929749508d6656163138a1 (diff)
downloadlinux-79a04e40f7f0e968b485a0d0cb12dcffc7f509c6.tar.xz
s390/qeth: add support for early L3 device setup
Similar to how qeth currently does early L2 setup of OSM and OSN devices, add support for early setup of L3-only devices. This adds a qeth_l3_devtype that contains all core and l3-specific sysfs attributes, so that they can be created in one go while probing. This just adds the infrastructure, exploitation of the support happens in a subsequent patch. Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/net/qeth_l3.h1
-rw-r--r--drivers/s390/net/qeth_l3_main.c18
-rw-r--r--drivers/s390/net/qeth_l3_sys.c11
3 files changed, 25 insertions, 5 deletions
diff --git a/drivers/s390/net/qeth_l3.h b/drivers/s390/net/qeth_l3.h
index 26f79533e62e..9b5e439f18cf 100644
--- a/drivers/s390/net/qeth_l3.h
+++ b/drivers/s390/net/qeth_l3.h
@@ -65,6 +65,7 @@ struct qeth_ipato_entry {
int mask_bits;
};
+extern const struct attribute_group *qeth_l3_attr_groups[];
void qeth_l3_ipaddr_to_string(enum qeth_prot_versions, const __u8 *, char *);
int qeth_l3_string_to_ipaddr(const char *, enum qeth_prot_versions, __u8 *);
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index fb4eee2a46ee..37b594231b76 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -3005,14 +3005,21 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
return register_netdev(card->dev);
}
+static const struct device_type qeth_l3_devtype = {
+ .name = "qeth_layer3",
+ .groups = qeth_l3_attr_groups,
+};
+
static int qeth_l3_probe_device(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
int rc;
- rc = qeth_l3_create_device_attributes(&gdev->dev);
- if (rc)
- return rc;
+ if (gdev->dev.type == &qeth_generic_devtype) {
+ rc = qeth_l3_create_device_attributes(&gdev->dev);
+ if (rc)
+ return rc;
+ }
hash_init(card->ip_htable);
hash_init(card->ip_mc_htable);
card->options.layer2 = 0;
@@ -3024,7 +3031,8 @@ static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
{
struct qeth_card *card = dev_get_drvdata(&cgdev->dev);
- qeth_l3_remove_device_attributes(&cgdev->dev);
+ if (cgdev->dev.type == &qeth_generic_devtype)
+ qeth_l3_remove_device_attributes(&cgdev->dev);
qeth_set_allowed_threads(card, 0, 1);
wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
@@ -3280,7 +3288,7 @@ static int qeth_l3_control_event(struct qeth_card *card,
}
struct qeth_discipline qeth_l3_discipline = {
- .devtype = &qeth_generic_devtype,
+ .devtype = &qeth_l3_devtype,
.start_poll = qeth_qdio_start_poll,
.input_handler = (qdio_handler_t *) qeth_qdio_input_handler,
.output_handler = (qdio_handler_t *) qeth_qdio_output_handler,
diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c
index ff29a4b416b4..f2f94f59e0fa 100644
--- a/drivers/s390/net/qeth_l3_sys.c
+++ b/drivers/s390/net/qeth_l3_sys.c
@@ -1049,3 +1049,14 @@ void qeth_l3_remove_device_attributes(struct device *dev)
sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group);
sysfs_remove_group(&dev->kobj, &qeth_device_rxip_group);
}
+
+const struct attribute_group *qeth_l3_attr_groups[] = {
+ &qeth_device_attr_group,
+ &qeth_device_blkt_group,
+ /* l3 specific, see l3_{create,remove}_device_attributes(): */
+ &qeth_l3_device_attr_group,
+ &qeth_device_ipato_group,
+ &qeth_device_vipa_group,
+ &qeth_device_rxip_group,
+NULL,
+};