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Message-Id: <1427962212-18411-3-git-send-email-sfeldma@gmail.com>
Date: Thu, 2 Apr 2015 01:09:48 -0700
From: sfeldma@...il.com
To: netdev@...r.kernel.org
Cc: jiri@...nulli.us, roopa@...ulusnetworks.com, linux@...ck-us.net,
f.fainelli@...il.com, sridhar.samudrala@...el.com,
ronen.arad@...el.com
Subject: [PATCH net-next v3 02/26] switchdev: convert parent_id_get to swdev attr get
From: Scott Feldman <sfeldma@...il.com>
Switch ID is just a gettable port attribute. Convert swdev op
swdev_parent_id_get to a swdev attr.
Note: for sysfs and netlink interfaces, SWDEV_ATTR_PORT_PARENT_ID is called
with SWDEV_F_NO_RECUSE to limit switch ID user-visiblity to only port
netdevs. So port is stacked under bond/bridge, the user can only see switch
ID for port.
Signed-off-by: Scott Feldman <sfeldma@...il.com>
---
drivers/net/ethernet/rocker/rocker.c | 16 +++++++++-----
include/net/switchdev.h | 18 ++++------------
net/core/net-sysfs.c | 10 ++++++---
net/core/rtnetlink.c | 9 +++++---
net/dsa/slave.c | 16 +++++++++-----
net/switchdev/switchdev.c | 38 ++++++++++------------------------
6 files changed, 50 insertions(+), 57 deletions(-)
diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c
index c9558e6..00f55ab 100644
--- a/drivers/net/ethernet/rocker/rocker.c
+++ b/drivers/net/ethernet/rocker/rocker.c
@@ -4220,14 +4220,20 @@ static const struct net_device_ops rocker_port_netdev_ops = {
* swdev interface
********************/
-static int rocker_port_swdev_parent_id_get(struct net_device *dev,
- struct netdev_phys_item_id *psid)
+static int rocker_port_attr_get(struct net_device *dev, struct swdev_attr *attr)
{
struct rocker_port *rocker_port = netdev_priv(dev);
struct rocker *rocker = rocker_port->rocker;
- psid->id_len = sizeof(rocker->hw.id);
- memcpy(&psid->id, &rocker->hw.id, psid->id_len);
+ switch (attr->id) {
+ case SWDEV_ATTR_PORT_PARENT_ID:
+ attr->ppid.id_len = sizeof(rocker->hw.id);
+ memcpy(&attr->ppid.id, &rocker->hw.id, attr->ppid.id_len);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
return 0;
}
@@ -4264,7 +4270,7 @@ static int rocker_port_swdev_fib_ipv4_del(struct net_device *dev,
}
static const struct swdev_ops rocker_port_swdev_ops = {
- .swdev_parent_id_get = rocker_port_swdev_parent_id_get,
+ .swdev_port_attr_get = rocker_port_attr_get,
.swdev_port_stp_update = rocker_port_swdev_port_stp_update,
.swdev_fib_ipv4_add = rocker_port_swdev_fib_ipv4_add,
.swdev_fib_ipv4_del = rocker_port_swdev_fib_ipv4_del,
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 0eb61ea..5fa73db 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -20,12 +20,16 @@
enum swdev_attr_id {
SWDEV_ATTR_UNDEFINED,
+ SWDEV_ATTR_PORT_PARENT_ID,
};
struct swdev_attr {
enum swdev_attr_id id;
u32 flags;
int trans_id;
+ union {
+ struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */
+ };
};
struct fib_info;
@@ -33,10 +37,6 @@ struct fib_info;
/**
* struct switchdev_ops - switchdev operations
*
- * @swdev_parent_id_get: Called to get an ID of the switch chip this port
- * is part of. If driver implements this, it indicates that it
- * represents a port of a switch chip.
- *
* @swdev_port_attr_get: Get a port attribute (see swdev_attr).
*
* @swdev_port_attr_set: Set a port attribute (see swdev_attr).
@@ -49,8 +49,6 @@ struct fib_info;
* @swdev_fib_ipv4_del: Called to delete IPv4 route from switch device.
*/
struct swdev_ops {
- int (*swdev_parent_id_get)(struct net_device *dev,
- struct netdev_phys_item_id *psid);
int (*swdev_port_attr_get)(struct net_device *dev,
struct swdev_attr *attr);
int (*swdev_port_attr_set)(struct net_device *dev,
@@ -88,8 +86,6 @@ netdev_switch_notifier_info_to_dev(const struct netdev_switch_notifier_info *inf
#ifdef CONFIG_NET_SWITCHDEV
-int netdev_switch_parent_id_get(struct net_device *dev,
- struct netdev_phys_item_id *psid);
int swdev_port_attr_get(struct net_device *dev, struct swdev_attr *attr);
int swdev_port_attr_set(struct net_device *dev, struct swdev_attr *attr);
int netdev_switch_port_stp_update(struct net_device *dev, u8 state);
@@ -113,12 +109,6 @@ void netdev_switch_fib_ipv4_abort(struct fib_info *fi);
#else
-static inline int netdev_switch_parent_id_get(struct net_device *dev,
- struct netdev_phys_item_id *psid)
-{
- return -EOPNOTSUPP;
-}
-
static inline int swdev_port_attr_get(struct net_device *dev,
enum swdev_attr *attr)
{
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index cc5cf68..1239c99 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -450,11 +450,15 @@ static ssize_t phys_switch_id_show(struct device *dev,
return restart_syscall();
if (dev_isalive(netdev)) {
- struct netdev_phys_item_id ppid;
+ struct swdev_attr attr = {
+ .id = SWDEV_ATTR_PORT_PARENT_ID,
+ .flags = SWDEV_F_NO_RECURSE,
+ };
- ret = netdev_switch_parent_id_get(netdev, &ppid);
+ ret = swdev_port_attr_get(netdev, &attr);
if (!ret)
- ret = sprintf(buf, "%*phN\n", ppid.id_len, ppid.id);
+ ret = sprintf(buf, "%*phN\n", attr.ppid.id_len,
+ attr.ppid.id);
}
rtnl_unlock();
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index b96ac21..3434724 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1003,16 +1003,19 @@ static int rtnl_phys_port_name_fill(struct sk_buff *skb, struct net_device *dev)
static int rtnl_phys_switch_id_fill(struct sk_buff *skb, struct net_device *dev)
{
int err;
- struct netdev_phys_item_id psid;
+ struct swdev_attr attr = {
+ .id = SWDEV_ATTR_PORT_PARENT_ID,
+ .flags = SWDEV_F_NO_RECURSE,
+ };
- err = netdev_switch_parent_id_get(dev, &psid);
+ err = swdev_port_attr_get(dev, &attr);
if (err) {
if (err == -EOPNOTSUPP)
return 0;
return err;
}
- if (nla_put(skb, IFLA_PHYS_SWITCH_ID, psid.id_len, psid.id))
+ if (nla_put(skb, IFLA_PHYS_SWITCH_ID, attr.ppid.id_len, attr.ppid.id))
return -EMSGSIZE;
return 0;
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 3597724..e994cba 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -384,14 +384,20 @@ static int dsa_slave_bridge_port_leave(struct net_device *dev)
return ret;
}
-static int dsa_slave_parent_id_get(struct net_device *dev,
- struct netdev_phys_item_id *psid)
+static int dsa_slave_port_attr_get(struct net_device *dev,
+ struct swdev_attr *attr)
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
- psid->id_len = sizeof(ds->index);
- memcpy(&psid->id, &ds->index, psid->id_len);
+ switch (attr->id) {
+ case SWDEV_ATTR_PORT_PARENT_ID:
+ attr->ppid.id_len = sizeof(ds->index);
+ memcpy(&attr->ppid.id, &ds->index, attr->ppid.id_len);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
return 0;
}
@@ -678,7 +684,7 @@ static const struct net_device_ops dsa_slave_netdev_ops = {
};
static const struct swdev_ops dsa_slave_swdev_ops = {
- .swdev_parent_id_get = dsa_slave_parent_id_get,
+ .swdev_port_attr_get = dsa_slave_port_attr_get,
.swdev_port_stp_update = dsa_slave_stp_update,
};
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 1f37caf..f0fc2f6 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -19,24 +19,6 @@
#include <net/switchdev.h>
/**
- * netdev_switch_parent_id_get - Get ID of a switch
- * @dev: port device
- * @psid: switch ID
- *
- * Get ID of a switch this port is part of.
- */
-int netdev_switch_parent_id_get(struct net_device *dev,
- struct netdev_phys_item_id *psid)
-{
- const struct swdev_ops *ops = dev->swdev_ops;
-
- if (!ops || !ops->swdev_parent_id_get)
- return -EOPNOTSUPP;
- return ops->swdev_parent_id_get(dev, psid);
-}
-EXPORT_SYMBOL_GPL(netdev_switch_parent_id_get);
-
-/**
* swdev_port_attr_get - Get port attribute
*
* @dev: port device
@@ -367,11 +349,10 @@ static struct net_device *netdev_switch_get_lowest_dev(struct net_device *dev)
struct list_head *iter;
/* Recusively search down until we find a sw port dev.
- * (A sw port dev supports swdev_parent_id_get).
+ * (A sw port dev supports swdev_port_attr_get).
*/
- if (dev->features & NETIF_F_HW_SWITCH_OFFLOAD &&
- ops && ops->swdev_parent_id_get)
+ if (ops && ops->swdev_port_attr_get)
return dev;
netdev_for_each_lower_dev(dev, lower_dev, iter) {
@@ -385,8 +366,10 @@ static struct net_device *netdev_switch_get_lowest_dev(struct net_device *dev)
static struct net_device *netdev_switch_get_dev_by_nhs(struct fib_info *fi)
{
- struct netdev_phys_item_id psid;
- struct netdev_phys_item_id prev_psid;
+ struct swdev_attr attr = {
+ .id = SWDEV_ATTR_PORT_PARENT_ID,
+ };
+ struct swdev_attr prev_attr;
struct net_device *dev = NULL;
int nhsel;
@@ -402,17 +385,18 @@ static struct net_device *netdev_switch_get_dev_by_nhs(struct fib_info *fi)
if (!dev)
return NULL;
- if (netdev_switch_parent_id_get(dev, &psid))
+ if (swdev_port_attr_get(dev, &attr))
return NULL;
if (nhsel > 0) {
- if (prev_psid.id_len != psid.id_len)
+ if (prev_attr.ppid.id_len != attr.ppid.id_len)
return NULL;
- if (memcmp(prev_psid.id, psid.id, psid.id_len))
+ if (memcmp(prev_attr.ppid.id, attr.ppid.id,
+ attr.ppid.id_len))
return NULL;
}
- prev_psid = psid;
+ prev_attr = attr;
}
return dev;
--
1.7.10.4
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