From: Florian Fainelli <f.fainelli@gmail.com>
To: netdev@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Ido Schimmel <idosch@mellanox.com>,
linux-kernel@vger.kernel.org (open list),
devel@driverdev.osuosl.org (open list:STAGING SUBSYSTEM),
bridge@lists.linux-foundation.org (moderated list:ETHERNET
BRIDGE),
jiri@mellanox.com, andrew@lunn.ch, vivien.didelot@gmail.com
Subject: [PATCH net-next v4 8/9] net: switchdev: Replace port attr get/set SDO with a notification
Date: Mon, 11 Feb 2019 11:10:00 -0800 [thread overview]
Message-ID: <20190211191001.8623-9-f.fainelli@gmail.com> (raw)
In-Reply-To: <20190211191001.8623-1-f.fainelli@gmail.com>
Drop switchdev_ops.switchdev_port_attr_get and _set. Drop the uses of
this field from all clients, which were migrated to use switchdev
notification in the previous patches.
Add a new function switchdev_port_attr_notify() that sends the switchdev
notifications SWITCHDEV_PORT_ATTR_GET and _SET.
Update switchdev_port_attr_get() to dispatch to this new function. Drop
__switchdev_port_attr_set() and update switchdev_port_attr_set()
likewise.
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
net/switchdev/switchdev.c | 107 +++++++++++++-------------------------
1 file changed, 37 insertions(+), 70 deletions(-)
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 7e1357db33d7..8fc3db2179f5 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -174,81 +174,31 @@ static int switchdev_deferred_enqueue(struct net_device *dev,
return 0;
}
-/**
- * switchdev_port_attr_get - Get port attribute
- *
- * @dev: port device
- * @attr: attribute to get
- */
-int switchdev_port_attr_get(struct net_device *dev, struct switchdev_attr *attr)
+static int switchdev_port_attr_notify(enum switchdev_notifier_type nt,
+ struct net_device *dev,
+ struct switchdev_attr *attr,
+ struct switchdev_trans *trans)
{
- const struct switchdev_ops *ops = dev->switchdev_ops;
- struct net_device *lower_dev;
- struct list_head *iter;
- struct switchdev_attr first = {
- .id = SWITCHDEV_ATTR_ID_UNDEFINED
- };
- int err = -EOPNOTSUPP;
+ int err;
+ int rc;
- if (ops && ops->switchdev_port_attr_get)
- return ops->switchdev_port_attr_get(dev, attr);
+ struct switchdev_notifier_port_attr_info attr_info = {
+ .attr = attr,
+ .trans = trans,
+ .handled = false,
+ };
- if (attr->flags & SWITCHDEV_F_NO_RECURSE)
+ rc = call_switchdev_blocking_notifiers(nt, dev, &attr_info.info, NULL);
+ err = notifier_to_errno(rc);
+ if (err) {
+ WARN_ON(!attr_info.handled);
return err;
-
- /* Switch device port(s) may be stacked under
- * bond/team/vlan dev, so recurse down to get attr on
- * each port. Return -ENODATA if attr values don't
- * compare across ports.
- */
-
- netdev_for_each_lower_dev(dev, lower_dev, iter) {
- err = switchdev_port_attr_get(lower_dev, attr);
- if (err)
- break;
- if (first.id == SWITCHDEV_ATTR_ID_UNDEFINED)
- first = *attr;
- else if (memcmp(&first, attr, sizeof(*attr)))
- return -ENODATA;
- }
-
- return err;
-}
-EXPORT_SYMBOL_GPL(switchdev_port_attr_get);
-
-static int __switchdev_port_attr_set(struct net_device *dev,
- const struct switchdev_attr *attr,
- struct switchdev_trans *trans)
-{
- const struct switchdev_ops *ops = dev->switchdev_ops;
- struct net_device *lower_dev;
- struct list_head *iter;
- int err = -EOPNOTSUPP;
-
- if (ops && ops->switchdev_port_attr_set) {
- err = ops->switchdev_port_attr_set(dev, attr, trans);
- goto done;
- }
-
- if (attr->flags & SWITCHDEV_F_NO_RECURSE)
- goto done;
-
- /* Switch device port(s) may be stacked under
- * bond/team/vlan dev, so recurse down to set attr on
- * each port.
- */
-
- netdev_for_each_lower_dev(dev, lower_dev, iter) {
- err = __switchdev_port_attr_set(lower_dev, attr, trans);
- if (err)
- break;
}
-done:
- if (err == -EOPNOTSUPP && attr->flags & SWITCHDEV_F_SKIP_EOPNOTSUPP)
- err = 0;
+ if (!attr_info.handled)
+ return -EOPNOTSUPP;
- return err;
+ return 0;
}
static int switchdev_port_attr_set_now(struct net_device *dev,
@@ -267,7 +217,9 @@ static int switchdev_port_attr_set_now(struct net_device *dev,
*/
trans.ph_prepare = true;
- err = __switchdev_port_attr_set(dev, attr, &trans);
+ err = switchdev_port_attr_notify(SWITCHDEV_PORT_ATTR_SET,
+ dev, (struct switchdev_attr *)attr,
+ &trans);
if (err) {
/* Prepare phase failed: abort the transaction. Any
* resources reserved in the prepare phase are
@@ -286,7 +238,9 @@ static int switchdev_port_attr_set_now(struct net_device *dev,
*/
trans.ph_prepare = false;
- err = __switchdev_port_attr_set(dev, attr, &trans);
+ err = switchdev_port_attr_notify(SWITCHDEV_PORT_ATTR_SET,
+ dev, (struct switchdev_attr *)attr,
+ &trans);
WARN(err, "%s: Commit of attribute (id=%d) failed.\n",
dev->name, attr->id);
switchdev_trans_items_warn_destroy(dev, &trans);
@@ -338,6 +292,19 @@ int switchdev_port_attr_set(struct net_device *dev,
}
EXPORT_SYMBOL_GPL(switchdev_port_attr_set);
+/**
+ * switchdev_port_attr_get - Get port attribute
+ *
+ * @dev: port device
+ * @attr: attribute to get
+ */
+int switchdev_port_attr_get(struct net_device *dev, struct switchdev_attr *attr)
+{
+ return switchdev_port_attr_notify(SWITCHDEV_PORT_ATTR_GET, dev,
+ attr, NULL);
+}
+EXPORT_SYMBOL_GPL(switchdev_port_attr_get);
+
static size_t switchdev_obj_size(const struct switchdev_obj *obj)
{
switch (obj->id) {
--
2.17.1
next prev parent reply other threads:[~2019-02-11 19:11 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-11 19:09 [PATCH net-next v4 0/9] net: Remove switchdev_ops Florian Fainelli
2019-02-11 19:09 ` [PATCH net-next v4 1/9] Documentation: networking: switchdev: Update port parent ID section Florian Fainelli
2019-02-12 12:19 ` Ido Schimmel
2019-02-11 19:09 ` [PATCH net-next v4 2/9] switchdev: Add SWITCHDEV_PORT_ATTR_SET, SWITCHDEV_PORT_ATTR_GET Florian Fainelli
2019-02-12 13:55 ` Ido Schimmel
2019-02-11 19:09 ` [PATCH net-next v4 3/9] rocker: Handle SWITCHDEV_PORT_ATTR_GET/SET Florian Fainelli
2019-02-11 19:09 ` [PATCH net-next v4 4/9] mlxsw: spectrum_switchdev: " Florian Fainelli
2019-02-12 14:07 ` Ido Schimmel
2019-02-11 19:09 ` [PATCH net-next v4 5/9] net: mscc: ocelot: " Florian Fainelli
2019-02-11 19:09 ` [PATCH net-next v4 6/9] staging: fsl-dpaa2: ethsw: " Florian Fainelli
2019-02-11 19:09 ` [PATCH net-next v4 7/9] net: dsa: " Florian Fainelli
2019-02-11 19:10 ` Florian Fainelli [this message]
2019-02-11 19:10 ` [PATCH net-next v4 9/9] net: Remove switchdev_ops Florian Fainelli
2019-02-12 14:10 ` Ido Schimmel
2019-02-11 20:16 ` [PATCH net-next v4 0/9] " David Miller
2019-02-11 21:40 ` Ido Schimmel
2019-02-12 13:14 ` Ido Schimmel
2019-02-12 13:53 ` Jiri Pirko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190211191001.8623-9-f.fainelli@gmail.com \
--to=f.fainelli@gmail.com \
--cc=andrew@lunn.ch \
--cc=bridge@lists.linux-foundation.org \
--cc=davem@davemloft.net \
--cc=devel@driverdev.osuosl.org \
--cc=idosch@mellanox.com \
--cc=jiri@mellanox.com \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=vivien.didelot@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).