linux-toradex.git/net/hsr/hsr_slave.c, branch v3.19.2 Linux kernel for Apalis and Colibri modules net/hsr: Better frame dispatch 2014-07-08T18:35:31+00:00 Arvid Brodin arvid.brodin@alten.se 2014-07-04T21:41:03+00:00 f266a683a4804dc499efc6c2206ef68efed029d0 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> 
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>
net/hsr: Implemented .ndo_fix_features (better device features handling). 2014-07-08T18:35:31+00:00 Arvid Brodin arvid.brodin@alten.se 2014-07-04T21:38:57+00:00 1cc1eb52734bfd2fc57c7b3337a11198e713580d Signed-off-by: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/hsr: Use list_head (and rcu) instead of array for slave devices. 2014-07-08T18:35:31+00:00 Arvid Brodin arvid.brodin@alten.se 2014-07-04T21:38:05+00:00 c5a7591172100269e426cf630da0f2dc8138a206 Signed-off-by: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/hsr: Move slave init to hsr_slave.c. 2014-07-08T18:35:31+00:00 Arvid Brodin arvid.brodin@alten.se 2014-07-04T21:37:27+00:00 51f3c605318b056ac5deb9079bbef2a976558827 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> 
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>
net/hsr: Switch from dev_add_pack() to netdev_rx_handler_register() 2014-07-08T18:35:30+00:00 Arvid Brodin arvid.brodin@alten.se 2014-07-04T21:35:24+00:00 81ba6afd6e6443d2bf4bf40f16df1f1f91c603f8 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> 
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>