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Merge branch 'swdev_ops' 

Scott Feldman says:

====================
switchdev: add swdev ops

v3:

 - Fix missing include for DSA build

v2:

 - Per Simon's review, squash some of the dependent commits into one to
   make series git bisect safe.

v1:

Per discussions at netconf, move switchdev ndo ops to a new swdev_ops to
keep ndo namespace clean and maintain switchdev-related ops into one place.

There are no functional changes here; just shuffling ops around for better
organization.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2015-03-16 00:14:47 -04:00
parent 7993d44ea1 812a1c3ff3
commit f00bbd219c
5 changed files with 124 additions and 108 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

102
drivers/net/ethernet/rocker/rocker.c
View File

@ -4131,49 +4131,6 @@ static int rocker_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
rocker_port->brport_flags, mask);
}
static int rocker_port_switch_parent_id_get(struct net_device *dev,
struct netdev_phys_item_id *psid)
{
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);
return 0;
}
static int rocker_port_switch_port_stp_update(struct net_device *dev, u8 state)
{
struct rocker_port *rocker_port = netdev_priv(dev);
return rocker_port_stp_update(rocker_port, state);
}
static int rocker_port_switch_fib_ipv4_add(struct net_device *dev,
__be32 dst, int dst_len,
struct fib_info *fi,
u8 tos, u8 type,
u32 nlflags, u32 tb_id)
{
struct rocker_port *rocker_port = netdev_priv(dev);
int flags = 0;
return rocker_port_fib_ipv4(rocker_port, dst, dst_len,
fi, tb_id, flags);
}
static int rocker_port_switch_fib_ipv4_del(struct net_device *dev,
__be32 dst, int dst_len,
struct fib_info *fi,
u8 tos, u8 type, u32 tb_id)
{
struct rocker_port *rocker_port = netdev_priv(dev);
int flags = ROCKER_OP_FLAG_REMOVE;
return rocker_port_fib_ipv4(rocker_port, dst, dst_len,
fi, tb_id, flags);
}
static const struct net_device_ops rocker_port_netdev_ops = {
.ndo_open = rocker_port_open,
.ndo_stop = rocker_port_stop,
@ -4186,10 +4143,60 @@ static const struct net_device_ops rocker_port_netdev_ops = {
.ndo_fdb_dump = rocker_port_fdb_dump,
.ndo_bridge_setlink = rocker_port_bridge_setlink,
.ndo_bridge_getlink = rocker_port_bridge_getlink,
.ndo_switch_parent_id_get = rocker_port_switch_parent_id_get,
.ndo_switch_port_stp_update = rocker_port_switch_port_stp_update,
.ndo_switch_fib_ipv4_add = rocker_port_switch_fib_ipv4_add,
.ndo_switch_fib_ipv4_del = rocker_port_switch_fib_ipv4_del,
};
/********************
* swdev interface
********************/
static int rocker_port_swdev_parent_id_get(struct net_device *dev,
struct netdev_phys_item_id *psid)
{
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);
return 0;
}
static int rocker_port_swdev_port_stp_update(struct net_device *dev, u8 state)
{
struct rocker_port *rocker_port = netdev_priv(dev);
return rocker_port_stp_update(rocker_port, state);
}
static int rocker_port_swdev_fib_ipv4_add(struct net_device *dev,
__be32 dst, int dst_len,
struct fib_info *fi,
u8 tos, u8 type,
u32 nlflags, u32 tb_id)
{
struct rocker_port *rocker_port = netdev_priv(dev);
int flags = 0;
return rocker_port_fib_ipv4(rocker_port, dst, dst_len,
fi, tb_id, flags);
}
static int rocker_port_swdev_fib_ipv4_del(struct net_device *dev,
__be32 dst, int dst_len,
struct fib_info *fi,
u8 tos, u8 type, u32 tb_id)
{
struct rocker_port *rocker_port = netdev_priv(dev);
int flags = ROCKER_OP_FLAG_REMOVE;
return rocker_port_fib_ipv4(rocker_port, dst, dst_len,
fi, tb_id, flags);
}
static const struct swdev_ops rocker_port_swdev_ops = {
.swdev_parent_id_get = rocker_port_swdev_parent_id_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,
};
/********************
@ -4544,6 +4551,7 @@ static int rocker_probe_port(struct rocker *rocker, unsigned int port_number)
rocker_port_dev_addr_init(rocker, rocker_port);
dev->netdev_ops = &rocker_port_netdev_ops;
dev->ethtool_ops = &rocker_port_ethtool_ops;
dev->swdev_ops = &rocker_port_swdev_ops;
netif_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx,
NAPI_POLL_WEIGHT);
netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx,

41
include/linux/netdevice.h
View File

@ -768,8 +768,6 @@ struct netdev_phys_item_id {
typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
struct sk_buff *skb);
struct fib_info;
/*
* This structure defines the management hooks for network devices.
* The following hooks can be defined; unless noted otherwise, they are
@ -1024,23 +1022,6 @@ struct fib_info;
* be otherwise expressed by feature flags. The check is called with
* the set of features that the stack has calculated and it returns
* those the driver believes to be appropriate.
*
* int (*ndo_switch_parent_id_get)(struct net_device *dev,
* struct netdev_phys_item_id *psid);
* 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.
* int (*ndo_switch_port_stp_update)(struct net_device *dev, u8 state);
* Called to notify switch device port of bridge port STP
* state change.
* int (*ndo_sw_parent_fib_ipv4_add)(struct net_device *dev, __be32 dst,
* int dst_len, struct fib_info *fi,
* u8 tos, u8 type, u32 nlflags, u32 tb_id);
* Called to add/modify IPv4 route to switch device.
* int (*ndo_sw_parent_fib_ipv4_del)(struct net_device *dev, __be32 dst,
* int dst_len, struct fib_info *fi,
* u8 tos, u8 type, u32 tb_id);
* Called to delete IPv4 route from switch device.
*/
struct net_device_ops {
int (*ndo_init)(struct net_device *dev);
@ -1197,25 +1178,6 @@ struct net_device_ops {
netdev_features_t (*ndo_features_check) (struct sk_buff *skb,
struct net_device *dev,
netdev_features_t features);
#ifdef CONFIG_NET_SWITCHDEV
int (*ndo_switch_parent_id_get)(struct net_device *dev,
struct netdev_phys_item_id *psid);
int (*ndo_switch_port_stp_update)(struct net_device *dev,
u8 state);
int (*ndo_switch_fib_ipv4_add)(struct net_device *dev,
__be32 dst,
int dst_len,
struct fib_info *fi,
u8 tos, u8 type,
u32 nlflags,
u32 tb_id);
int (*ndo_switch_fib_ipv4_del)(struct net_device *dev,
__be32 dst,
int dst_len,
struct fib_info *fi,
u8 tos, u8 type,
u32 tb_id);
#endif
};
/**
@ -1577,6 +1539,9 @@ struct net_device {
const struct net_device_ops *netdev_ops;
const struct ethtool_ops *ethtool_ops;
const struct forwarding_accel_ops *fwd_ops;
#ifdef CONFIG_NET_SWITCHDEV
const struct swdev_ops *swdev_ops;
#endif
const struct header_ops *header_ops;

38
include/net/switchdev.h
View File

@ -14,6 +14,44 @@
#include <linux/netdevice.h>
#include <linux/notifier.h>
struct fib_info;
/**
* struct switchdev_ops - switchdev operations
*
* int (*swdev_parent_id_get)(struct net_device *dev,
* struct netdev_phys_item_id *psid);
* 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.
*
* int (*swdev_port_stp_update)(struct net_device *dev, u8 state);
* Called to notify switch device port of bridge port STP
* state change.
*
* int (*swdev_fib_ipv4_add)(struct net_device *dev, __be32 dst,
* int dst_len, struct fib_info *fi,
* u8 tos, u8 type, u32 nlflags, u32 tb_id);
* Called to add/modify IPv4 route to switch device.
*
* int (*swdev_fib_ipv4_del)(struct net_device *dev, __be32 dst,
* int dst_len, struct fib_info *fi,
* u8 tos, u8 type, u32 tb_id);
* 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_stp_update)(struct net_device *dev, u8 state);
int (*swdev_fib_ipv4_add)(struct net_device *dev, __be32 dst,
int dst_len, struct fib_info *fi,
u8 tos, u8 type, u32 nlflags,
u32 tb_id);
int (*swdev_fib_ipv4_del)(struct net_device *dev, __be32 dst,
int dst_len, struct fib_info *fi,
u8 tos, u8 type, u32 tb_id);
};
enum netdev_switch_notifier_type {
NETDEV_SWITCH_FDB_ADD = 1,
NETDEV_SWITCH_FDB_DEL,

9
net/dsa/slave.c
View File

@ -16,6 +16,7 @@
#include <linux/of_net.h>
#include <linux/of_mdio.h>
#include <net/rtnetlink.h>
#include <net/switchdev.h>
#include <linux/if_bridge.h>
#include "dsa_priv.h"
@ -572,8 +573,11 @@ static const struct net_device_ops dsa_slave_netdev_ops = {
.ndo_set_rx_mode = dsa_slave_set_rx_mode,
.ndo_set_mac_address = dsa_slave_set_mac_address,
.ndo_do_ioctl = dsa_slave_ioctl,
.ndo_switch_parent_id_get = dsa_slave_parent_id_get,
.ndo_switch_port_stp_update = dsa_slave_stp_update,
};
static const struct swdev_ops dsa_slave_swdev_ops = {
.swdev_parent_id_get = dsa_slave_parent_id_get,
.swdev_port_stp_update = dsa_slave_stp_update,
};
static void dsa_slave_adjust_link(struct net_device *dev)
@ -755,6 +759,7 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
eth_hw_addr_inherit(slave_dev, master);
slave_dev->tx_queue_len = 0;
slave_dev->netdev_ops = &dsa_slave_netdev_ops;
slave_dev->swdev_ops = &dsa_slave_swdev_ops;
SET_NETDEV_DEV(slave_dev, parent);
slave_dev->dev.of_node = ds->pd->port_dn[port];

42
net/switchdev/switchdev.c
View File

@ -28,11 +28,11 @@
int netdev_switch_parent_id_get(struct net_device *dev,
struct netdev_phys_item_id *psid)
{
const struct net_device_ops *ops = dev->netdev_ops;
const struct swdev_ops *ops = dev->swdev_ops;
if (!ops->ndo_switch_parent_id_get)
if (!ops || !ops->swdev_parent_id_get)
return -EOPNOTSUPP;
return ops->ndo_switch_parent_id_get(dev, psid);
return ops->swdev_parent_id_get(dev, psid);
}
EXPORT_SYMBOL_GPL(netdev_switch_parent_id_get);
@ -46,12 +46,12 @@ EXPORT_SYMBOL_GPL(netdev_switch_parent_id_get);
*/
int netdev_switch_port_stp_update(struct net_device *dev, u8 state)
{
const struct net_device_ops *ops = dev->netdev_ops;
const struct swdev_ops *ops = dev->swdev_ops;
if (!ops->ndo_switch_port_stp_update)
if (!ops || !ops->swdev_port_stp_update)
return -EOPNOTSUPP;
WARN_ON(!ops->ndo_switch_parent_id_get);
return ops->ndo_switch_port_stp_update(dev, state);
WARN_ON(!ops->swdev_parent_id_get);
return ops->swdev_port_stp_update(dev, state);
}
EXPORT_SYMBOL_GPL(netdev_switch_port_stp_update);
@ -230,17 +230,17 @@ EXPORT_SYMBOL_GPL(ndo_dflt_netdev_switch_port_bridge_dellink);
static struct net_device *netdev_switch_get_lowest_dev(struct net_device *dev)
{
const struct net_device_ops *ops = dev->netdev_ops;
const struct swdev_ops *ops = dev->swdev_ops;
struct net_device *lower_dev;
struct net_device *port_dev;
struct list_head *iter;
/* Recusively search down until we find a sw port dev.
* (A sw port dev supports ndo_switch_parent_id_get).
* (A sw port dev supports swdev_parent_id_get).
*/
if (dev->features & NETIF_F_HW_SWITCH_OFFLOAD &&
ops->ndo_switch_parent_id_get)
ops && ops->swdev_parent_id_get)
return dev;
netdev_for_each_lower_dev(dev, lower_dev, iter) {
@ -304,7 +304,7 @@ int netdev_switch_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
u8 tos, u8 type, u32 nlflags, u32 tb_id)
{
struct net_device *dev;
const struct net_device_ops *ops;
const struct swdev_ops *ops;
int err = 0;
/* Don't offload route if using custom ip rules or if
@ -322,12 +322,12 @@ int netdev_switch_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
dev = netdev_switch_get_dev_by_nhs(fi);
if (!dev)
return 0;
ops = dev->netdev_ops;
ops = dev->swdev_ops;
if (ops->ndo_switch_fib_ipv4_add) {
err = ops->ndo_switch_fib_ipv4_add(dev, htonl(dst), dst_len,
fi, tos, type, nlflags,
tb_id);
if (ops->swdev_fib_ipv4_add) {
err = ops->swdev_fib_ipv4_add(dev, htonl(dst), dst_len,
fi, tos, type, nlflags,
tb_id);
if (!err)
fi->fib_flags |= RTNH_F_EXTERNAL;
}
@ -352,7 +352,7 @@ int netdev_switch_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
u8 tos, u8 type, u32 tb_id)
{
struct net_device *dev;
const struct net_device_ops *ops;
const struct swdev_ops *ops;
int err = 0;
if (!(fi->fib_flags & RTNH_F_EXTERNAL))
@ -361,11 +361,11 @@ int netdev_switch_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
dev = netdev_switch_get_dev_by_nhs(fi);
if (!dev)
return 0;
ops = dev->netdev_ops;
ops = dev->swdev_ops;
if (ops->ndo_switch_fib_ipv4_del) {
err = ops->ndo_switch_fib_ipv4_del(dev, htonl(dst), dst_len,
fi, tos, type, tb_id);
if (ops->swdev_fib_ipv4_del) {
err = ops->swdev_fib_ipv4_del(dev, htonl(dst), dst_len,
fi, tos, type, tb_id);
if (!err)
fi->fib_flags &= ~RTNH_F_EXTERNAL;
}