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authorVivien Didelot <vivien.didelot@savoirfairelinux.com>2017-01-27 23:29:38 +0300
committerDavid S. Miller <davem@davemloft.net>2017-01-30 02:42:46 +0300
commit818be8489d6fc8f4cc2c7699bbfd8e1983080f10 (patch)
tree50b8e511c5aca76d6e4670c681d9de60b6ffcb96
parent26895e299cfb583d304553e9c259e694a7e83397 (diff)
downloadlinux-818be8489d6fc8f4cc2c7699bbfd8e1983080f10.tar.xz
net: dsa: add ds and index to dsa_port
Add the physical switch instance and port index a DSA port belongs to to the dsa_port structure. That can be used later to retrieve information about a physical port when configuring a switch fabric, or lighten up struct dsa_slave_priv. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/dsa.h2
-rw-r--r--net/dsa/dsa2.c6
2 files changed, 8 insertions, 0 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 24e1d935ae68..6bd1f8b05dbd 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -140,6 +140,8 @@ struct dsa_switch_tree {
};
struct dsa_port {
+ struct dsa_switch *ds;
+ unsigned int index;
struct net_device *netdev;
struct device_node *dn;
unsigned int ageing_time;
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 6e7b3e88b778..9f8cc26be9ea 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -670,6 +670,7 @@ struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n)
{
size_t size = sizeof(struct dsa_switch) + n * sizeof(struct dsa_port);
struct dsa_switch *ds;
+ int i;
ds = devm_kzalloc(dev, size, GFP_KERNEL);
if (!ds)
@@ -678,6 +679,11 @@ struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n)
ds->dev = dev;
ds->num_ports = n;
+ for (i = 0; i < ds->num_ports; ++i) {
+ ds->ports[i].index = i;
+ ds->ports[i].ds = ds;
+ }
+
return ds;
}
EXPORT_SYMBOL_GPL(dsa_switch_alloc);