Commit 46c5176c authored by Álvaro Fernández Rojas's avatar Álvaro Fernández Rojas Committed by David S. Miller
Browse files

net: dsa: b53: support legacy tags 



These tags are used on BCM5325, BCM5365 and BCM63xx switches.

Signed-off-by: default avatarÁlvaro Fernández Rojas <noltari@gmail.com>
Acked-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 964dbf18

drivers/net/dsa/b53/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ menuconfig B53 
	tristate "Broadcom BCM53xx managed switch support"

	depends on NET_DSA

	select NET_DSA_TAG_BRCM

	select NET_DSA_TAG_BRCM_LEGACY

	select NET_DSA_TAG_BRCM_PREPEND

	help

	  This driver adds support for Broadcom managed switch chips. It supports

drivers/net/dsa/b53/b53_common.c

+7 −5
Original line number Diff line number Diff line
@@ -2055,15 +2055,17 @@ enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, int port, 
{

	struct b53_device *dev = ds->priv;



	/* Older models (5325, 5365) support a different tag format that we do

	 * not support in net/dsa/tag_brcm.c yet.

	 */

	if (is5325(dev) || is5365(dev) ||

	    !b53_can_enable_brcm_tags(ds, port, mprot)) {

	if (!b53_can_enable_brcm_tags(ds, port, mprot)) {

		dev->tag_protocol = DSA_TAG_PROTO_NONE;

		goto out;

	}



	/* Older models require a different 6 byte tag */

	if (is5325(dev) || is5365(dev) || is63xx(dev)) {

		dev->tag_protocol = DSA_TAG_PROTO_BRCM_LEGACY;

		goto out;

	}



	/* Broadcom BCM58xx chips have a flow accelerator on Port 8

	 * which requires us to use the prepended Broadcom tag type

	 */