| f266a683a4804dc499efc6c2206ef68efed029d0 |
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04-Jul-2014 |
Arvid Brodin <arvid.brodin@alten.se> |
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>
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| c5a7591172100269e426cf630da0f2dc8138a206 |
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04-Jul-2014 |
Arvid Brodin <arvid.brodin@alten.se> |
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>
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| abff7162765cd66ab109c97fd433ef1f39299120 |
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04-Jul-2014 |
Arvid Brodin <arvid.brodin@alten.se> |
net/hsr: Move to per-hsr device prune timer.
Signed-off-by: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| 81ba6afd6e6443d2bf4bf40f16df1f1f91c603f8 |
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04-Jul-2014 |
Arvid Brodin <arvid.brodin@alten.se> |
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>
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| 70ebe4a47185db15f3c55be9611a1a971237870b |
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04-Jul-2014 |
Arvid Brodin <arvid.brodin@alten.se> |
net/hsr: Better variable names and update of contact info.
Signed-off-by: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| f421436a591d34fa5279b54a96ac07d70250cc8d |
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30-Oct-2013 |
Arvid Brodin <Arvid.Brodin@xdin.com> |
net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0)
High-availability Seamless Redundancy ("HSR") provides instant failover
redundancy for Ethernet networks. It requires a special network topology where
all nodes are connected in a ring (each node having two physical network
interfaces). It is suited for applications that demand high availability and
very short reaction time.
HSR acts on the Ethernet layer, using a registered Ethernet protocol type to
send special HSR frames in both directions over the ring. The driver creates
virtual network interfaces that can be used just like any ordinary Linux
network interface, for IP/TCP/UDP traffic etc. All nodes in the network ring
must be HSR capable.
This code is a "best effort" to comply with the HSR standard as described in
IEC 62439-3:2010 (HSRv0).
Signed-off-by: Arvid Brodin <arvid.brodin@xdin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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