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authorFlorian Fainelli <f.fainelli@gmail.com>2017-10-11 10:57:49 -0700
committerDavid S. Miller <davem@davemloft.net>2017-10-12 12:10:02 -0700
commit0a5f14ce67a6e093e651d3cd75e6ac281123d93a (patch)
treebe53f67eb5014acc40b6d04effd68d425d8bcb18
parent60724d4bae14cd295b27b1610cad9a2720eb0860 (diff)
downloadlinux-0a5f14ce67a6e093e651d3cd75e6ac281123d93a.tar.bz2
net: dsa: tag_brcm: Indicate to master netdevice port + queue
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>
-rw-r--r--include/net/dsa.h5
-rw-r--r--net/dsa/tag_brcm.c6
2 files changed, 11 insertions, 0 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 40a709a0754d..ce1d622734d7 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -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
diff --git a/net/dsa/tag_brcm.c b/net/dsa/tag_brcm.c
index 8e4bdb9d9ae3..cc4f472fbd77 100644
--- a/net/dsa/tag_brcm.c
+++ b/net/dsa/tag_brcm.c
@@ -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;
}