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linux-next/net/hsr/hsr_slave.h

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net: hsr: convert to SPDX identifier Use SPDX-License-Identifier instead of a verbose license text. Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-06 01:31:34 +08:00
/* SPDX-License-Identifier: GPL-2.0 */
net/hsr: Switch from dev_add_pack() to netdev_rx_handler_register() Also move the frame receive handler to hsr_slave.c. Signed-off-by: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-05 05:35:24 +08:00
/* Copyright 2011-2014 Autronica Fire and Security AS
*
* 2011-2014 Arvid Brodin, arvid.brodin@alten.se
*/
#ifndef __HSR_SLAVE_H
#define __HSR_SLAVE_H
#include <linux/skbuff.h>
#include <linux/netdevice.h>
net/hsr: Use list_head (and rcu) instead of array for slave devices. Signed-off-by: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-05 05:38:05 +08:00
#include <linux/rtnetlink.h>
net/hsr: Move slave init to hsr_slave.c. Also try to prevent some possible slave dereference race conditions. This is finalized in the next patch, which abandons the slave array in favour of a list_head list and list RCU. Signed-off-by: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-05 05:37:27 +08:00
#include "hsr_main.h"
net/hsr: Switch from dev_add_pack() to netdev_rx_handler_register() Also move the frame receive handler to hsr_slave.c. Signed-off-by: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-05 05:35:24 +08:00
net/hsr: Use list_head (and rcu) instead of array for slave devices. Signed-off-by: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-05 05:38:05 +08:00
int hsr_add_port(struct hsr_priv *hsr, struct net_device *dev,
hsr: use extack error message instead of netdev_info If HSR uses the extack instead of netdev_info(), users can get error messages immediately without any checking the kernel message. Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-29 02:01:35 +08:00
enum hsr_port_type pt, struct netlink_ext_ack *extack);
net/hsr: Use list_head (and rcu) instead of array for slave devices. Signed-off-by: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-05 05:38:05 +08:00
void hsr_del_port(struct hsr_port *port);
net/hsr: Better frame dispatch This patch removes the separate paths for frames coming from the outside, and frames sent from the HSR device, and instead makes all frames go through hsr_forward_skb() in hsr_forward.c. This greatly improves code readability and also opens up the possibility for future support of the HSR Interlink device that is the basis for HSR RedBoxes and HSR QuadBoxes, as well as VLAN compatibility. Other improvements: * A reduction in the number of times an skb is copied on machines without HAVE_EFFICIENT_UNALIGNED_ACCESS, which improves throughput somewhat. * Headers are now created using the standard eth_header(), and using the standard hard_header_len. * Each HSR slave now gets its own private skb, so slave-specific fields can be correctly set. Signed-off-by: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-05 05:41:03 +08:00
bool hsr_port_exists(const struct net_device *dev);
net/hsr: Use list_head (and rcu) instead of array for slave devices. Signed-off-by: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-05 05:38:05 +08:00
static inline struct hsr_port *hsr_port_get_rtnl(const struct net_device *dev)
{
ASSERT_RTNL();
return hsr_port_exists(dev) ?
rtnl_dereference(dev->rx_handler_data) : NULL;
}
static inline struct hsr_port *hsr_port_get_rcu(const struct net_device *dev)
{
return hsr_port_exists(dev) ?
rcu_dereference(dev->rx_handler_data) : NULL;
}
net/hsr: Switch from dev_add_pack() to netdev_rx_handler_register() Also move the frame receive handler to hsr_slave.c. Signed-off-by: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-07-05 05:35:24 +08:00
#endif /* __HSR_SLAVE_H */
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