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authorFlorian Fainelli <f.fainelli@gmail.com>2017-01-20 12:36:32 -0800
committerDavid S. Miller <davem@davemloft.net>2017-01-22 16:58:31 -0500
commit64ff2aef91afdff7f22eaef05a65b5bc3429ef21 (patch)
tree3f6a0d0259b80798d51a5aefcb2496e3ab95197c /Documentation
parentnet: dsa: bcm_sf2: Move code enabling Broadcom tags (diff)
downloadlinux-dev-64ff2aef91afdff7f22eaef05a65b5bc3429ef21.tar.xz
linux-dev-64ff2aef91afdff7f22eaef05a65b5bc3429ef21.zip
net: dsa: bcm_sf2: Allow non-IMP ports to have Broadcom tags enabled
Parse the "brcm,use-bcm-hdr" boolean property during ports identification to fill a bitmask of ports that should have Broadcom tags enabled. This is needed in some configurations where per-packet metadata can be exchanged using Broadcom tags between the switch and an on-chip acceleration device. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt b/Documentation/devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt
index e1b2c3e32859..9a734d808aa7 100644
--- a/Documentation/devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt
+++ b/Documentation/devicetree/bindings/net/brcm,bcm7445-switch-v4.0.txt
@@ -41,6 +41,13 @@ Optional properties:
Admission Control Block supports reporting the number of packets in-flight in a
switch queue
+Port subnodes:
+
+Optional properties:
+
+- brcm,use-bcm-hdr: boolean property, if present, indicates that the switch
+ port has Broadcom tags enabled (per-packet metadata)
+
Example:
switch_top@f0b00000 {
@@ -114,6 +121,7 @@ switch_top@f0b00000 {
port@0 {
label = "gphy";
reg = <0>;
+ brcm,use-bcm-hdr;
};
...
};