diff options
| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2014-09-15 17:00:19 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-15 21:24:20 (GMT) |
| commit | 5075314e4e4b559cc37675ad8a721a89bccd6284 (patch) | |
| tree | 37d72bc57dd16717b15acbb14e5c98e7d36ced19 /net/dsa/dsa.c | |
| parent | 6cca9adb786184be21f30be0982e3ea0281f75cb (diff) | |
| download | linux-5075314e4e4b559cc37675ad8a721a89bccd6284.tar.xz | |
dsa: Split ops up, and avoid assigning tag_protocol and receive separately
This change addresses several issues.
First, it was possible to set tag_protocol without setting the ops pointer.
To correct that I have reordered things so that rcv is now populated before
we set tag_protocol.
Second, it didn't make much sense to keep setting the device ops each time a
new slave was registered. So by moving the receive portion out into root
switch initialization that issue should be addressed.
Third, I wanted to avoid sending tags if the rcv pointer was not registered
so I changed the tag check to verify if the rcv function pointer is set on
the root tree. If it is then we start sending DSA tagged frames.
Finally I split the device ops pointer in the structures into two spots. I
placed the rcv function pointer in the root switch since this makes it
easiest to access from there, and I placed the xmit function pointer in the
slave for the same reason.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa/dsa.c')
| -rw-r--r-- | net/dsa/dsa.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index 61f145c..1df0a7c 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -10,7 +10,6 @@ */ #include <linux/list.h> -#include <linux/netdevice.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/module.h> @@ -154,9 +153,34 @@ dsa_switch_setup(struct dsa_switch_tree *dst, int index, * tagging protocol to the preferred tagging format of this * switch. */ - if (ds->dst->cpu_switch == index) - ds->dst->tag_protocol = drv->tag_protocol; + if (dst->cpu_switch == index) { + switch (drv->tag_protocol) { +#ifdef CONFIG_NET_DSA_TAG_DSA + case DSA_TAG_PROTO_DSA: + dst->rcv = dsa_netdev_ops.rcv; + break; +#endif +#ifdef CONFIG_NET_DSA_TAG_EDSA + case DSA_TAG_PROTO_EDSA: + dst->rcv = edsa_netdev_ops.rcv; + break; +#endif +#ifdef CONFIG_NET_DSA_TAG_TRAILER + case DSA_TAG_PROTO_TRAILER: + dst->rcv = trailer_netdev_ops.rcv; + break; +#endif +#ifdef CONFIG_NET_DSA_TAG_BRCM + case DSA_TAG_PROTO_BRCM: + dst->rcv = brcm_netdev_ops.rcv; + break; +#endif + default: + break; + } + dst->tag_protocol = drv->tag_protocol; + } /* * Do basic register setup. @@ -626,7 +650,7 @@ static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev, return 0; } - return dst->ops->rcv(skb, dev, pt, orig_dev); + return dst->rcv(skb, dev, pt, orig_dev); } static struct packet_type dsa_pack_type __read_mostly = { |