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dsa: add support for Trailer tagging format

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This adds support for the Trailer switch tagging format.  This is
another tagging that doesn't explicitly mark tagged packets with a
distinct ethertype, so that we need to add a similar hack in the
receive path as for the Original DSA tagging format.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Tested-by: Byron Bradley <byron.bbradley@gmail.com>
Tested-by: Tim Ellis <tim.ellis@mac.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lennert Buytenhek
2008-10-07 13:46:07 +00:00
committed by David S. Miller
parent 2e5f032095
commit 396138f03f
10 changed files with 164 additions and 0 deletions
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7
net/dsa/dsa.c
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@@ -217,6 +217,13 @@ bool dsa_uses_dsa_tags(void *dsa_ptr)
return !!(ds->tag_protocol == htons(ETH_P_DSA));
}
bool dsa_uses_trailer_tags(void *dsa_ptr)
{
struct dsa_switch *ds = dsa_ptr;
return !!(ds->tag_protocol == htons(ETH_P_TRAILER));
}
/* link polling *************************************************************/
static void dsa_link_poll_work(struct work_struct *ugly)