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net: dsa: tag_brcm: Indicate to master netdevice port + queue

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We need to tell the DSA master network device doing the actual
transmission what the desired switch port and queue number is for it to
resolve that to the internal transmit queue it is mapped to.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2017-10-11 10:57:49 -07:00 committed by David S. Miller
parent 60724d4bae
commit 0a5f14ce67
2 changed files with 11 additions and 0 deletions
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5
include/net/dsa.h
View File

@ -516,4 +516,9 @@ static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev,
}
#endif
/* Broadcom tag specific helpers to insert and extract queue/port number */
#define BRCM_TAG_SET_PORT_QUEUE(p, q) ((p) << 8 | q)
#define BRCM_TAG_GET_PORT(v) ((v) >> 8)
#define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff)
#endif

6
net/dsa/tag_brcm.c
View File

@ -86,6 +86,12 @@ static struct sk_buff *brcm_tag_xmit(struct sk_buff *skb, struct net_device *dev
brcm_tag[2] = BRCM_IG_DSTMAP2_MASK;
brcm_tag[3] = (1 << p->dp->index) & BRCM_IG_DSTMAP1_MASK;
/* Now tell the master network device about the desired output queue
* as well
*/
skb_set_queue_mapping(skb, BRCM_TAG_SET_PORT_QUEUE(p->dp->index,
queue));
return skb;
}